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- Committer: Teddy Hogeborn
- Date: 2016-06-21 19:49:01 UTC
- mto: This revision was merged to the branch mainline in revision 855.
- Revision ID: teddy@recompile.se-20160621194901-sd4jpyv08sxghdwi
Tags: version-1.7.8-1
* Makefile (version): Change to 1.7.8.
* NEWS (Version 1.7.8): Add new entry.
* debian/changelog (1.7.8-1): - '' -
* NEWS (Version 1.7.8): Add new entry.
* debian/changelog (1.7.8-1): - '' -
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2013 Teddy Hogeborn
15
# Copyright © 2008-2013 Björn Påhlsson
14
# Copyright © 2008-2016 Teddy Hogeborn
15
# Copyright © 2008-2016 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
37
try:
38
from future_builtins import *
39
except ImportError:
40
pass
38
41
39
import SocketServer as socketserver
42
try:
43
import SocketServer as socketserver
44
except ImportError:
45
import socketserver
40
46
import socket
41
47
import argparse
42
48
import datetime
43
49
import errno
44
import gnutls.crypto
45
import gnutls.connection
46
import gnutls.errors
47
import gnutls.library.functions
48
import gnutls.library.constants
49
import gnutls.library.types
50
import ConfigParser as configparser
50
try:
51
import ConfigParser as configparser
52
except ImportError:
53
import configparser
51
54
import sys
52
55
import re
53
56
import os
62
65
import struct
63
66
import fcntl
64
67
import functools
65
import cPickle as pickle
68
try:
69
import cPickle as pickle
70
except ImportError:
71
import pickle
66
72
import multiprocessing
67
73
import types
68
74
import binascii
69
75
import tempfile
70
76
import itertools
71
77
import collections
78
import codecs
72
79
73
80
import dbus
74
81
import dbus.service
75
import gobject
76
import avahi
82
from gi.repository import GLib
77
83
from dbus.mainloop.glib import DBusGMainLoop
78
84
import ctypes
79
85
import ctypes.util
80
86
import xml.dom.minidom
81
87
import inspect
82
88
89
# Try to find the value of SO_BINDTODEVICE:
83
90
try:
91
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
92
# newer, and it is also the most natural place for it:
84
93
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
85
94
except AttributeError:
86
95
try:
96
# This is where SO_BINDTODEVICE was up to and including Python
97
# 2.6, and also 3.2:
87
98
from IN import SO_BINDTODEVICE
88
99
except ImportError:
89
SO_BINDTODEVICE = None
90
91
version = "1.6.1"
100
# In Python 2.7 it seems to have been removed entirely.
101
# Try running the C preprocessor:
102
try:
103
cc = subprocess.Popen(["cc", "--language=c", "-E",
104
"/dev/stdin"],
105
stdin=subprocess.PIPE,
106
stdout=subprocess.PIPE)
107
stdout = cc.communicate(
108
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
109
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
110
except (OSError, ValueError, IndexError):
111
# No value found
112
SO_BINDTODEVICE = None
113
114
if sys.version_info.major == 2:
115
str = unicode
116
117
version = "1.7.8"
92
118
stored_state_file = "clients.pickle"
93
119
94
120
logger = logging.getLogger()
95
syslogger = (logging.handlers.SysLogHandler
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
121
syslogger = None
98
122
99
123
try:
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
124
if_nametoindex = ctypes.cdll.LoadLibrary(
125
ctypes.util.find_library("c")).if_nametoindex
103
126
except (OSError, AttributeError):
127
104
128
def if_nametoindex(interface):
105
129
"Get an interface index the hard way, i.e. using fcntl()"
106
130
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
107
131
with contextlib.closing(socket.socket()) as s:
108
132
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
112
ifreq[16:20])[0]
133
struct.pack(b"16s16x", interface))
134
interface_index = struct.unpack("I", ifreq[16:20])[0]
113
135
return interface_index
114
136
115
137
138
def copy_function(func):
139
"""Make a copy of a function"""
140
if sys.version_info.major == 2:
141
return types.FunctionType(func.func_code,
142
func.func_globals,
143
func.func_name,
144
func.func_defaults,
145
func.func_closure)
146
else:
147
return types.FunctionType(func.__code__,
148
func.__globals__,
149
func.__name__,
150
func.__defaults__,
151
func.__closure__)
152
153
116
154
def initlogger(debug, level=logging.WARNING):
117
155
"""init logger and add loglevel"""
118
156
157
global syslogger
158
syslogger = (logging.handlers.SysLogHandler(
159
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
160
address = "/dev/log"))
119
161
syslogger.setFormatter(logging.Formatter
120
162
('Mandos [%(process)d]: %(levelname)s:'
121
163
' %(message)s'))
138
180
139
181
class PGPEngine(object):
140
182
"""A simple class for OpenPGP symmetric encryption & decryption"""
183
141
184
def __init__(self):
142
185
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
186
self.gpg = "gpg"
187
try:
188
output = subprocess.check_output(["gpgconf"])
189
for line in output.splitlines():
190
name, text, path = line.split(b":")
191
if name == "gpg":
192
self.gpg = path
193
break
194
except OSError as e:
195
if e.errno != errno.ENOENT:
196
raise
143
197
self.gnupgargs = ['--batch',
144
'--home', self.tempdir,
198
'--homedir', self.tempdir,
145
199
'--force-mdc',
146
'--quiet',
147
'--no-use-agent']
200
'--quiet']
201
# Only GPG version 1 has the --no-use-agent option.
202
if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
203
self.gnupgargs.append("--no-use-agent")
148
204
149
205
def __enter__(self):
150
206
return self
172
228
def password_encode(self, password):
173
229
# Passphrase can not be empty and can not contain newlines or
174
230
# NUL bytes. So we prefix it and hex encode it.
175
return b"mandos" + binascii.hexlify(password)
231
encoded = b"mandos" + binascii.hexlify(password)
232
if len(encoded) > 2048:
233
# GnuPG can't handle long passwords, so encode differently
234
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
235
.replace(b"\n", b"\\n")
236
.replace(b"\0", b"\\x00"))
237
return encoded
176
238
177
239
def encrypt(self, data, password):
178
240
passphrase = self.password_encode(password)
179
with tempfile.NamedTemporaryFile(dir=self.tempdir
180
) as passfile:
241
with tempfile.NamedTemporaryFile(
242
dir=self.tempdir) as passfile:
181
243
passfile.write(passphrase)
182
244
passfile.flush()
183
proc = subprocess.Popen(['gpg', '--symmetric',
245
proc = subprocess.Popen([self.gpg, '--symmetric',
184
246
'--passphrase-file',
185
247
passfile.name]
186
248
+ self.gnupgargs,
194
256
195
257
def decrypt(self, data, password):
196
258
passphrase = self.password_encode(password)
197
with tempfile.NamedTemporaryFile(dir = self.tempdir
198
) as passfile:
259
with tempfile.NamedTemporaryFile(
260
dir = self.tempdir) as passfile:
199
261
passfile.write(passphrase)
200
262
passfile.flush()
201
proc = subprocess.Popen(['gpg', '--decrypt',
263
proc = subprocess.Popen([self.gpg, '--decrypt',
202
264
'--passphrase-file',
203
265
passfile.name]
204
266
+ self.gnupgargs,
205
267
stdin = subprocess.PIPE,
206
268
stdout = subprocess.PIPE,
207
269
stderr = subprocess.PIPE)
208
decrypted_plaintext, err = proc.communicate(input
209
= data)
270
decrypted_plaintext, err = proc.communicate(input = data)
210
271
if proc.returncode != 0:
211
272
raise PGPError(err)
212
273
return decrypted_plaintext
213
274
275
# Pretend that we have an Avahi module
276
class Avahi(object):
277
"""This isn't so much a class as it is a module-like namespace.
278
It is instantiated once, and simulates having an Avahi module."""
279
IF_UNSPEC = -1 # avahi-common/address.h
280
PROTO_UNSPEC = -1 # avahi-common/address.h
281
PROTO_INET = 0 # avahi-common/address.h
282
PROTO_INET6 = 1 # avahi-common/address.h
283
DBUS_NAME = "org.freedesktop.Avahi"
284
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
285
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
286
DBUS_PATH_SERVER = "/"
287
def string_array_to_txt_array(self, t):
288
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
289
for s in t), signature="ay")
290
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
291
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
292
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
293
SERVER_INVALID = 0 # avahi-common/defs.h
294
SERVER_REGISTERING = 1 # avahi-common/defs.h
295
SERVER_RUNNING = 2 # avahi-common/defs.h
296
SERVER_COLLISION = 3 # avahi-common/defs.h
297
SERVER_FAILURE = 4 # avahi-common/defs.h
298
avahi = Avahi()
214
299
215
300
class AvahiError(Exception):
216
301
def __init__(self, value, *args, **kwargs):
217
302
self.value = value
218
super(AvahiError, self).__init__(value, *args, **kwargs)
219
def __unicode__(self):
220
return unicode(repr(self.value))
303
return super(AvahiError, self).__init__(value, *args,
304
**kwargs)
305
221
306
222
307
class AvahiServiceError(AvahiError):
223
308
pass
224
309
310
225
311
class AvahiGroupError(AvahiError):
226
312
pass
227
313
247
333
bus: dbus.SystemBus()
248
334
"""
249
335
250
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
251
servicetype = None, port = None, TXT = None,
252
domain = "", host = "", max_renames = 32768,
253
protocol = avahi.PROTO_UNSPEC, bus = None):
336
def __init__(self,
337
interface = avahi.IF_UNSPEC,
338
name = None,
339
servicetype = None,
340
port = None,
341
TXT = None,
342
domain = "",
343
host = "",
344
max_renames = 32768,
345
protocol = avahi.PROTO_UNSPEC,
346
bus = None):
254
347
self.interface = interface
255
348
self.name = name
256
349
self.type = servicetype
266
359
self.bus = bus
267
360
self.entry_group_state_changed_match = None
268
361
269
def rename(self):
362
def rename(self, remove=True):
270
363
"""Derived from the Avahi example code"""
271
364
if self.rename_count >= self.max_renames:
272
365
logger.critical("No suitable Zeroconf service name found"
273
366
" after %i retries, exiting.",
274
367
self.rename_count)
275
368
raise AvahiServiceError("Too many renames")
276
self.name = unicode(self.server
277
.GetAlternativeServiceName(self.name))
369
self.name = str(
370
self.server.GetAlternativeServiceName(self.name))
371
self.rename_count += 1
278
372
logger.info("Changing Zeroconf service name to %r ...",
279
373
self.name)
280
self.remove()
374
if remove:
375
self.remove()
281
376
try:
282
377
self.add()
283
378
except dbus.exceptions.DBusException as error:
284
logger.critical("D-Bus Exception", exc_info=error)
285
self.cleanup()
286
os._exit(1)
287
self.rename_count += 1
379
if (error.get_dbus_name()
380
== "org.freedesktop.Avahi.CollisionError"):
381
logger.info("Local Zeroconf service name collision.")
382
return self.rename(remove=False)
383
else:
384
logger.critical("D-Bus Exception", exc_info=error)
385
self.cleanup()
386
os._exit(1)
288
387
289
388
def remove(self):
290
389
"""Derived from the Avahi example code"""
328
427
self.rename()
329
428
elif state == avahi.ENTRY_GROUP_FAILURE:
330
429
logger.critical("Avahi: Error in group state changed %s",
331
unicode(error))
332
raise AvahiGroupError("State changed: {0!s}"
333
.format(error))
430
str(error))
431
raise AvahiGroupError("State changed: {!s}".format(error))
334
432
335
433
def cleanup(self):
336
434
"""Derived from the Avahi example code"""
346
444
def server_state_changed(self, state, error=None):
347
445
"""Derived from the Avahi example code"""
348
446
logger.debug("Avahi server state change: %i", state)
349
bad_states = { avahi.SERVER_INVALID:
350
"Zeroconf server invalid",
351
avahi.SERVER_REGISTERING: None,
352
avahi.SERVER_COLLISION:
353
"Zeroconf server name collision",
354
avahi.SERVER_FAILURE:
355
"Zeroconf server failure" }
447
bad_states = {
448
avahi.SERVER_INVALID: "Zeroconf server invalid",
449
avahi.SERVER_REGISTERING: None,
450
avahi.SERVER_COLLISION: "Zeroconf server name collision",
451
avahi.SERVER_FAILURE: "Zeroconf server failure",
452
}
356
453
if state in bad_states:
357
454
if bad_states[state] is not None:
358
455
if error is None:
361
458
logger.error(bad_states[state] + ": %r", error)
362
459
self.cleanup()
363
460
elif state == avahi.SERVER_RUNNING:
364
self.add()
461
try:
462
self.add()
463
except dbus.exceptions.DBusException as error:
464
if (error.get_dbus_name()
465
== "org.freedesktop.Avahi.CollisionError"):
466
logger.info("Local Zeroconf service name"
467
" collision.")
468
return self.rename(remove=False)
469
else:
470
logger.critical("D-Bus Exception", exc_info=error)
471
self.cleanup()
472
os._exit(1)
365
473
else:
366
474
if error is None:
367
475
logger.debug("Unknown state: %r", state)
377
485
follow_name_owner_changes=True),
378
486
avahi.DBUS_INTERFACE_SERVER)
379
487
self.server.connect_to_signal("StateChanged",
380
self.server_state_changed)
488
self.server_state_changed)
381
489
self.server_state_changed(self.server.GetState())
382
490
383
491
384
492
class AvahiServiceToSyslog(AvahiService):
385
def rename(self):
493
def rename(self, *args, **kwargs):
386
494
"""Add the new name to the syslog messages"""
387
ret = AvahiService.rename(self)
388
syslogger.setFormatter(logging.Formatter
389
('Mandos ({0}) [%(process)d]:'
390
' %(levelname)s: %(message)s'
391
.format(self.name)))
495
ret = AvahiService.rename(self, *args, **kwargs)
496
syslogger.setFormatter(logging.Formatter(
497
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
498
.format(self.name)))
392
499
return ret
393
500
394
395
def timedelta_to_milliseconds(td):
396
"Convert a datetime.timedelta() to milliseconds"
397
return ((td.days * 24 * 60 * 60 * 1000)
398
+ (td.seconds * 1000)
399
+ (td.microseconds // 1000))
400
501
# Pretend that we have a GnuTLS module
502
class GnuTLS(object):
503
"""This isn't so much a class as it is a module-like namespace.
504
It is instantiated once, and simulates having a GnuTLS module."""
505
506
_library = ctypes.cdll.LoadLibrary(
507
ctypes.util.find_library("gnutls"))
508
_need_version = b"3.3.0"
509
def __init__(self):
510
# Need to use class name "GnuTLS" here, since this method is
511
# called before the assignment to the "gnutls" global variable
512
# happens.
513
if GnuTLS.check_version(self._need_version) is None:
514
raise GnuTLS.Error("Needs GnuTLS {} or later"
515
.format(self._need_version))
516
517
# Unless otherwise indicated, the constants and types below are
518
# all from the gnutls/gnutls.h C header file.
519
520
# Constants
521
E_SUCCESS = 0
522
E_INTERRUPTED = -52
523
E_AGAIN = -28
524
CRT_OPENPGP = 2
525
CLIENT = 2
526
SHUT_RDWR = 0
527
CRD_CERTIFICATE = 1
528
E_NO_CERTIFICATE_FOUND = -49
529
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
530
531
# Types
532
class session_int(ctypes.Structure):
533
_fields_ = []
534
session_t = ctypes.POINTER(session_int)
535
class certificate_credentials_st(ctypes.Structure):
536
_fields_ = []
537
certificate_credentials_t = ctypes.POINTER(
538
certificate_credentials_st)
539
certificate_type_t = ctypes.c_int
540
class datum_t(ctypes.Structure):
541
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
542
('size', ctypes.c_uint)]
543
class openpgp_crt_int(ctypes.Structure):
544
_fields_ = []
545
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
546
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
547
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
548
credentials_type_t = ctypes.c_int
549
transport_ptr_t = ctypes.c_void_p
550
close_request_t = ctypes.c_int
551
552
# Exceptions
553
class Error(Exception):
554
# We need to use the class name "GnuTLS" here, since this
555
# exception might be raised from within GnuTLS.__init__,
556
# which is called before the assignment to the "gnutls"
557
# global variable has happened.
558
def __init__(self, message = None, code = None, args=()):
559
# Default usage is by a message string, but if a return
560
# code is passed, convert it to a string with
561
# gnutls.strerror()
562
self.code = code
563
if message is None and code is not None:
564
message = GnuTLS.strerror(code)
565
return super(GnuTLS.Error, self).__init__(
566
message, *args)
567
568
class CertificateSecurityError(Error):
569
pass
570
571
# Classes
572
class Credentials(object):
573
def __init__(self):
574
self._c_object = gnutls.certificate_credentials_t()
575
gnutls.certificate_allocate_credentials(
576
ctypes.byref(self._c_object))
577
self.type = gnutls.CRD_CERTIFICATE
578
579
def __del__(self):
580
gnutls.certificate_free_credentials(self._c_object)
581
582
class ClientSession(object):
583
def __init__(self, socket, credentials = None):
584
self._c_object = gnutls.session_t()
585
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
586
gnutls.set_default_priority(self._c_object)
587
gnutls.transport_set_ptr(self._c_object, socket.fileno())
588
gnutls.handshake_set_private_extensions(self._c_object,
589
True)
590
self.socket = socket
591
if credentials is None:
592
credentials = gnutls.Credentials()
593
gnutls.credentials_set(self._c_object, credentials.type,
594
ctypes.cast(credentials._c_object,
595
ctypes.c_void_p))
596
self.credentials = credentials
597
598
def __del__(self):
599
gnutls.deinit(self._c_object)
600
601
def handshake(self):
602
return gnutls.handshake(self._c_object)
603
604
def send(self, data):
605
data = bytes(data)
606
data_len = len(data)
607
while data_len > 0:
608
data_len -= gnutls.record_send(self._c_object,
609
data[-data_len:],
610
data_len)
611
612
def bye(self):
613
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
614
615
# Error handling functions
616
def _error_code(result):
617
"""A function to raise exceptions on errors, suitable
618
for the 'restype' attribute on ctypes functions"""
619
if result >= 0:
620
return result
621
if result == gnutls.E_NO_CERTIFICATE_FOUND:
622
raise gnutls.CertificateSecurityError(code = result)
623
raise gnutls.Error(code = result)
624
625
def _retry_on_error(result, func, arguments):
626
"""A function to retry on some errors, suitable
627
for the 'errcheck' attribute on ctypes functions"""
628
while result < 0:
629
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
630
return _error_code(result)
631
result = func(*arguments)
632
return result
633
634
# Unless otherwise indicated, the function declarations below are
635
# all from the gnutls/gnutls.h C header file.
636
637
# Functions
638
priority_set_direct = _library.gnutls_priority_set_direct
639
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
640
ctypes.POINTER(ctypes.c_char_p)]
641
priority_set_direct.restype = _error_code
642
643
init = _library.gnutls_init
644
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
645
init.restype = _error_code
646
647
set_default_priority = _library.gnutls_set_default_priority
648
set_default_priority.argtypes = [session_t]
649
set_default_priority.restype = _error_code
650
651
record_send = _library.gnutls_record_send
652
record_send.argtypes = [session_t, ctypes.c_void_p,
653
ctypes.c_size_t]
654
record_send.restype = ctypes.c_ssize_t
655
record_send.errcheck = _retry_on_error
656
657
certificate_allocate_credentials = (
658
_library.gnutls_certificate_allocate_credentials)
659
certificate_allocate_credentials.argtypes = [
660
ctypes.POINTER(certificate_credentials_t)]
661
certificate_allocate_credentials.restype = _error_code
662
663
certificate_free_credentials = (
664
_library.gnutls_certificate_free_credentials)
665
certificate_free_credentials.argtypes = [certificate_credentials_t]
666
certificate_free_credentials.restype = None
667
668
handshake_set_private_extensions = (
669
_library.gnutls_handshake_set_private_extensions)
670
handshake_set_private_extensions.argtypes = [session_t,
671
ctypes.c_int]
672
handshake_set_private_extensions.restype = None
673
674
credentials_set = _library.gnutls_credentials_set
675
credentials_set.argtypes = [session_t, credentials_type_t,
676
ctypes.c_void_p]
677
credentials_set.restype = _error_code
678
679
strerror = _library.gnutls_strerror
680
strerror.argtypes = [ctypes.c_int]
681
strerror.restype = ctypes.c_char_p
682
683
certificate_type_get = _library.gnutls_certificate_type_get
684
certificate_type_get.argtypes = [session_t]
685
certificate_type_get.restype = _error_code
686
687
certificate_get_peers = _library.gnutls_certificate_get_peers
688
certificate_get_peers.argtypes = [session_t,
689
ctypes.POINTER(ctypes.c_uint)]
690
certificate_get_peers.restype = ctypes.POINTER(datum_t)
691
692
global_set_log_level = _library.gnutls_global_set_log_level
693
global_set_log_level.argtypes = [ctypes.c_int]
694
global_set_log_level.restype = None
695
696
global_set_log_function = _library.gnutls_global_set_log_function
697
global_set_log_function.argtypes = [log_func]
698
global_set_log_function.restype = None
699
700
deinit = _library.gnutls_deinit
701
deinit.argtypes = [session_t]
702
deinit.restype = None
703
704
handshake = _library.gnutls_handshake
705
handshake.argtypes = [session_t]
706
handshake.restype = _error_code
707
handshake.errcheck = _retry_on_error
708
709
transport_set_ptr = _library.gnutls_transport_set_ptr
710
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
711
transport_set_ptr.restype = None
712
713
bye = _library.gnutls_bye
714
bye.argtypes = [session_t, close_request_t]
715
bye.restype = _error_code
716
bye.errcheck = _retry_on_error
717
718
check_version = _library.gnutls_check_version
719
check_version.argtypes = [ctypes.c_char_p]
720
check_version.restype = ctypes.c_char_p
721
722
# All the function declarations below are from gnutls/openpgp.h
723
724
openpgp_crt_init = _library.gnutls_openpgp_crt_init
725
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
726
openpgp_crt_init.restype = _error_code
727
728
openpgp_crt_import = _library.gnutls_openpgp_crt_import
729
openpgp_crt_import.argtypes = [openpgp_crt_t,
730
ctypes.POINTER(datum_t),
731
openpgp_crt_fmt_t]
732
openpgp_crt_import.restype = _error_code
733
734
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
735
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
736
ctypes.POINTER(ctypes.c_uint)]
737
openpgp_crt_verify_self.restype = _error_code
738
739
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
740
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
741
openpgp_crt_deinit.restype = None
742
743
openpgp_crt_get_fingerprint = (
744
_library.gnutls_openpgp_crt_get_fingerprint)
745
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
746
ctypes.c_void_p,
747
ctypes.POINTER(
748
ctypes.c_size_t)]
749
openpgp_crt_get_fingerprint.restype = _error_code
750
751
# Remove non-public functions
752
del _error_code, _retry_on_error
753
# Create the global "gnutls" object, simulating a module
754
gnutls = GnuTLS()
755
756
def call_pipe(connection, # : multiprocessing.Connection
757
func, *args, **kwargs):
758
"""This function is meant to be called by multiprocessing.Process
759
760
This function runs func(*args, **kwargs), and writes the resulting
761
return value on the provided multiprocessing.Connection.
762
"""
763
connection.send(func(*args, **kwargs))
764
connection.close()
401
765
402
766
class Client(object):
403
767
"""A representation of a client host served by this server.
409
773
checker: subprocess.Popen(); a running checker process used
410
774
to see if the client lives.
411
775
'None' if no process is running.
412
checker_callback_tag: a gobject event source tag, or None
776
checker_callback_tag: a GLib event source tag, or None
413
777
checker_command: string; External command which is run to check
414
778
if client lives. %() expansions are done at
415
779
runtime with vars(self) as dict, so that for
416
780
instance %(name)s can be used in the command.
417
checker_initiator_tag: a gobject event source tag, or None
781
checker_initiator_tag: a GLib event source tag, or None
418
782
created: datetime.datetime(); (UTC) object creation
419
783
client_structure: Object describing what attributes a client has
420
784
and is used for storing the client at exit
421
785
current_checker_command: string; current running checker_command
422
disable_initiator_tag: a gobject event source tag, or None
786
disable_initiator_tag: a GLib event source tag, or None
423
787
enabled: bool()
424
788
fingerprint: string (40 or 32 hexadecimal digits); used to
425
789
uniquely identify the client
430
794
last_checker_status: integer between 0 and 255 reflecting exit
431
795
status of last checker. -1 reflects crashed
432
796
checker, -2 means no checker completed yet.
797
last_checker_signal: The signal which killed the last checker, if
798
last_checker_status is -1
433
799
last_enabled: datetime.datetime(); (UTC) or None
434
800
name: string; from the config file, used in log messages and
435
801
D-Bus identifiers
448
814
"fingerprint", "host", "interval",
449
815
"last_approval_request", "last_checked_ok",
450
816
"last_enabled", "name", "timeout")
451
client_defaults = { "timeout": "PT5M",
452
"extended_timeout": "PT15M",
453
"interval": "PT2M",
454
"checker": "fping -q -- %%(host)s",
455
"host": "",
456
"approval_delay": "PT0S",
457
"approval_duration": "PT1S",
458
"approved_by_default": "True",
459
"enabled": "True",
460
}
461
462
def timeout_milliseconds(self):
463
"Return the 'timeout' attribute in milliseconds"
464
return timedelta_to_milliseconds(self.timeout)
465
466
def extended_timeout_milliseconds(self):
467
"Return the 'extended_timeout' attribute in milliseconds"
468
return timedelta_to_milliseconds(self.extended_timeout)
469
470
def interval_milliseconds(self):
471
"Return the 'interval' attribute in milliseconds"
472
return timedelta_to_milliseconds(self.interval)
473
474
def approval_delay_milliseconds(self):
475
return timedelta_to_milliseconds(self.approval_delay)
817
client_defaults = {
818
"timeout": "PT5M",
819
"extended_timeout": "PT15M",
820
"interval": "PT2M",
821
"checker": "fping -q -- %%(host)s",
822
"host": "",
823
"approval_delay": "PT0S",
824
"approval_duration": "PT1S",
825
"approved_by_default": "True",
826
"enabled": "True",
827
}
476
828
477
829
@staticmethod
478
830
def config_parser(config):
494
846
client["enabled"] = config.getboolean(client_name,
495
847
"enabled")
496
848
849
# Uppercase and remove spaces from fingerprint for later
850
# comparison purposes with return value from the
851
# fingerprint() function
497
852
client["fingerprint"] = (section["fingerprint"].upper()
498
853
.replace(" ", ""))
499
854
if "secret" in section:
500
client["secret"] = section["secret"].decode("base64")
855
client["secret"] = codecs.decode(section["secret"]
856
.encode("utf-8"),
857
"base64")
501
858
elif "secfile" in section:
502
859
with open(os.path.expanduser(os.path.expandvars
503
860
(section["secfile"])),
504
861
"rb") as secfile:
505
862
client["secret"] = secfile.read()
506
863
else:
507
raise TypeError("No secret or secfile for section {0}"
864
raise TypeError("No secret or secfile for section {}"
508
865
.format(section))
509
866
client["timeout"] = string_to_delta(section["timeout"])
510
867
client["extended_timeout"] = string_to_delta(
527
884
server_settings = {}
528
885
self.server_settings = server_settings
529
886
# adding all client settings
530
for setting, value in settings.iteritems():
887
for setting, value in settings.items():
531
888
setattr(self, setting, value)
532
889
533
890
if self.enabled:
541
898
self.expires = None
542
899
543
900
logger.debug("Creating client %r", self.name)
544
# Uppercase and remove spaces from fingerprint for later
545
# comparison purposes with return value from the fingerprint()
546
# function
547
901
logger.debug(" Fingerprint: %s", self.fingerprint)
548
902
self.created = settings.get("created",
549
903
datetime.datetime.utcnow())
556
910
self.current_checker_command = None
557
911
self.approved = None
558
912
self.approvals_pending = 0
559
self.changedstate = (multiprocessing_manager
560
.Condition(multiprocessing_manager
561
.Lock()))
562
self.client_structure = [attr for attr in
563
self.__dict__.iterkeys()
913
self.changedstate = multiprocessing_manager.Condition(
914
multiprocessing_manager.Lock())
915
self.client_structure = [attr
916
for attr in self.__dict__.keys()
564
917
if not attr.startswith("_")]
565
918
self.client_structure.append("client_structure")
566
919
567
for name, t in inspect.getmembers(type(self),
568
lambda obj:
569
isinstance(obj,
570
property)):
920
for name, t in inspect.getmembers(
921
type(self), lambda obj: isinstance(obj, property)):
571
922
if not name.startswith("_"):
572
923
self.client_structure.append(name)
573
924
594
945
if not quiet:
595
946
logger.info("Disabling client %s", self.name)
596
947
if getattr(self, "disable_initiator_tag", None) is not None:
597
gobject.source_remove(self.disable_initiator_tag)
948
GLib.source_remove(self.disable_initiator_tag)
598
949
self.disable_initiator_tag = None
599
950
self.expires = None
600
951
if getattr(self, "checker_initiator_tag", None) is not None:
601
gobject.source_remove(self.checker_initiator_tag)
952
GLib.source_remove(self.checker_initiator_tag)
602
953
self.checker_initiator_tag = None
603
954
self.stop_checker()
604
955
self.enabled = False
605
956
if not quiet:
606
957
self.send_changedstate()
607
# Do not run this again if called by a gobject.timeout_add
958
# Do not run this again if called by a GLib.timeout_add
608
959
return False
609
960
610
961
def __del__(self):
614
965
# Schedule a new checker to be started an 'interval' from now,
615
966
# and every interval from then on.
616
967
if self.checker_initiator_tag is not None:
617
gobject.source_remove(self.checker_initiator_tag)
618
self.checker_initiator_tag = (gobject.timeout_add
619
(self.interval_milliseconds(),
620
self.start_checker))
968
GLib.source_remove(self.checker_initiator_tag)
969
self.checker_initiator_tag = GLib.timeout_add(
970
int(self.interval.total_seconds() * 1000),
971
self.start_checker)
621
972
# Schedule a disable() when 'timeout' has passed
622
973
if self.disable_initiator_tag is not None:
623
gobject.source_remove(self.disable_initiator_tag)
624
self.disable_initiator_tag = (gobject.timeout_add
625
(self.timeout_milliseconds(),
626
self.disable))
974
GLib.source_remove(self.disable_initiator_tag)
975
self.disable_initiator_tag = GLib.timeout_add(
976
int(self.timeout.total_seconds() * 1000), self.disable)
627
977
# Also start a new checker *right now*.
628
978
self.start_checker()
629
979
630
def checker_callback(self, pid, condition, command):
980
def checker_callback(self, source, condition, connection,
981
command):
631
982
"""The checker has completed, so take appropriate actions."""
632
983
self.checker_callback_tag = None
633
984
self.checker = None
634
if os.WIFEXITED(condition):
635
self.last_checker_status = os.WEXITSTATUS(condition)
985
# Read return code from connection (see call_pipe)
986
returncode = connection.recv()
987
connection.close()
988
989
if returncode >= 0:
990
self.last_checker_status = returncode
991
self.last_checker_signal = None
636
992
if self.last_checker_status == 0:
637
993
logger.info("Checker for %(name)s succeeded",
638
994
vars(self))
639
995
self.checked_ok()
640
996
else:
641
logger.info("Checker for %(name)s failed",
642
vars(self))
997
logger.info("Checker for %(name)s failed", vars(self))
643
998
else:
644
999
self.last_checker_status = -1
1000
self.last_checker_signal = -returncode
645
1001
logger.warning("Checker for %(name)s crashed?",
646
1002
vars(self))
1003
return False
647
1004
648
1005
def checked_ok(self):
649
1006
"""Assert that the client has been seen, alive and well."""
650
1007
self.last_checked_ok = datetime.datetime.utcnow()
651
1008
self.last_checker_status = 0
1009
self.last_checker_signal = None
652
1010
self.bump_timeout()
653
1011
654
1012
def bump_timeout(self, timeout=None):
656
1014
if timeout is None:
657
1015
timeout = self.timeout
658
1016
if self.disable_initiator_tag is not None:
659
gobject.source_remove(self.disable_initiator_tag)
1017
GLib.source_remove(self.disable_initiator_tag)
660
1018
self.disable_initiator_tag = None
661
1019
if getattr(self, "enabled", False):
662
self.disable_initiator_tag = (gobject.timeout_add
663
(timedelta_to_milliseconds
664
(timeout), self.disable))
1020
self.disable_initiator_tag = GLib.timeout_add(
1021
int(timeout.total_seconds() * 1000), self.disable)
665
1022
self.expires = datetime.datetime.utcnow() + timeout
666
1023
667
1024
def need_approval(self):
681
1038
# than 'timeout' for the client to be disabled, which is as it
682
1039
# should be.
683
1040
684
# If a checker exists, make sure it is not a zombie
685
try:
686
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
687
except (AttributeError, OSError) as error:
688
if (isinstance(error, OSError)
689
and error.errno != errno.ECHILD):
690
raise error
691
else:
692
if pid:
693
logger.warning("Checker was a zombie")
694
gobject.source_remove(self.checker_callback_tag)
695
self.checker_callback(pid, status,
696
self.current_checker_command)
1041
if self.checker is not None and not self.checker.is_alive():
1042
logger.warning("Checker was not alive; joining")
1043
self.checker.join()
1044
self.checker = None
697
1045
# Start a new checker if needed
698
1046
if self.checker is None:
699
1047
# Escape attributes for the shell
700
escaped_attrs = dict(
701
(attr, re.escape(unicode(getattr(self, attr))))
702
for attr in
703
self.runtime_expansions)
1048
escaped_attrs = {
1049
attr: re.escape(str(getattr(self, attr)))
1050
for attr in self.runtime_expansions }
704
1051
try:
705
1052
command = self.checker_command % escaped_attrs
706
1053
except TypeError as error:
707
1054
logger.error('Could not format string "%s"',
708
self.checker_command, exc_info=error)
709
return True # Try again later
1055
self.checker_command,
1056
exc_info=error)
1057
return True # Try again later
710
1058
self.current_checker_command = command
711
try:
712
logger.info("Starting checker %r for %s",
713
command, self.name)
714
# We don't need to redirect stdout and stderr, since
715
# in normal mode, that is already done by daemon(),
716
# and in debug mode we don't want to. (Stdin is
717
# always replaced by /dev/null.)
718
# The exception is when not debugging but nevertheless
719
# running in the foreground; use the previously
720
# created wnull.
721
popen_args = {}
722
if (not self.server_settings["debug"]
723
and self.server_settings["foreground"]):
724
popen_args.update({"stdout": wnull,
725
"stderr": wnull })
726
self.checker = subprocess.Popen(command,
727
close_fds=True,
728
shell=True, cwd="/",
729
**popen_args)
730
except OSError as error:
731
logger.error("Failed to start subprocess",
732
exc_info=error)
733
return True
734
self.checker_callback_tag = (gobject.child_watch_add
735
(self.checker.pid,
736
self.checker_callback,
737
data=command))
738
# The checker may have completed before the gobject
739
# watch was added. Check for this.
740
try:
741
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
742
except OSError as error:
743
if error.errno == errno.ECHILD:
744
# This should never happen
745
logger.error("Child process vanished",
746
exc_info=error)
747
return True
748
raise
749
if pid:
750
gobject.source_remove(self.checker_callback_tag)
751
self.checker_callback(pid, status, command)
752
# Re-run this periodically if run by gobject.timeout_add
1059
logger.info("Starting checker %r for %s", command,
1060
self.name)
1061
# We don't need to redirect stdout and stderr, since
1062
# in normal mode, that is already done by daemon(),
1063
# and in debug mode we don't want to. (Stdin is
1064
# always replaced by /dev/null.)
1065
# The exception is when not debugging but nevertheless
1066
# running in the foreground; use the previously
1067
# created wnull.
1068
popen_args = { "close_fds": True,
1069
"shell": True,
1070
"cwd": "/" }
1071
if (not self.server_settings["debug"]
1072
and self.server_settings["foreground"]):
1073
popen_args.update({"stdout": wnull,
1074
"stderr": wnull })
1075
pipe = multiprocessing.Pipe(duplex = False)
1076
self.checker = multiprocessing.Process(
1077
target = call_pipe,
1078
args = (pipe[1], subprocess.call, command),
1079
kwargs = popen_args)
1080
self.checker.start()
1081
self.checker_callback_tag = GLib.io_add_watch(
1082
pipe[0].fileno(), GLib.IO_IN,
1083
self.checker_callback, pipe[0], command)
1084
# Re-run this periodically if run by GLib.timeout_add
753
1085
return True
754
1086
755
1087
def stop_checker(self):
756
1088
"""Force the checker process, if any, to stop."""
757
1089
if self.checker_callback_tag:
758
gobject.source_remove(self.checker_callback_tag)
1090
GLib.source_remove(self.checker_callback_tag)
759
1091
self.checker_callback_tag = None
760
1092
if getattr(self, "checker", None) is None:
761
1093
return
762
1094
logger.debug("Stopping checker for %(name)s", vars(self))
763
try:
764
self.checker.terminate()
765
#time.sleep(0.5)
766
#if self.checker.poll() is None:
767
# self.checker.kill()
768
except OSError as error:
769
if error.errno != errno.ESRCH: # No such process
770
raise
1095
self.checker.terminate()
771
1096
self.checker = None
772
1097
773
1098
774
def dbus_service_property(dbus_interface, signature="v",
775
access="readwrite", byte_arrays=False):
1099
def dbus_service_property(dbus_interface,
1100
signature="v",
1101
access="readwrite",
1102
byte_arrays=False):
776
1103
"""Decorators for marking methods of a DBusObjectWithProperties to
777
1104
become properties on the D-Bus.
778
1105
787
1114
# "Set" method, so we fail early here:
788
1115
if byte_arrays and signature != "ay":
789
1116
raise ValueError("Byte arrays not supported for non-'ay'"
790
" signature {0!r}".format(signature))
1117
" signature {!r}".format(signature))
1118
791
1119
def decorator(func):
792
1120
func._dbus_is_property = True
793
1121
func._dbus_interface = dbus_interface
798
1126
func._dbus_name = func._dbus_name[:-14]
799
1127
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
800
1128
return func
1129
801
1130
return decorator
802
1131
803
1132
812
1141
"org.freedesktop.DBus.Property.EmitsChangedSignal":
813
1142
"false"}
814
1143
"""
1144
815
1145
def decorator(func):
816
1146
func._dbus_is_interface = True
817
1147
func._dbus_interface = dbus_interface
818
1148
func._dbus_name = dbus_interface
819
1149
return func
1150
820
1151
return decorator
821
1152
822
1153
824
1155
"""Decorator to annotate D-Bus methods, signals or properties
825
1156
Usage:
826
1157
1158
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1159
"org.freedesktop.DBus.Property."
1160
"EmitsChangedSignal": "false"})
827
1161
@dbus_service_property("org.example.Interface", signature="b",
828
1162
access="r")
829
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
830
"org.freedesktop.DBus.Property."
831
"EmitsChangedSignal": "false"})
832
1163
def Property_dbus_property(self):
833
1164
return dbus.Boolean(False)
1165
1166
See also the DBusObjectWithAnnotations class.
834
1167
"""
1168
835
1169
def decorator(func):
836
1170
func._dbus_annotations = annotations
837
1171
return func
1172
838
1173
return decorator
839
1174
840
1175
841
1176
class DBusPropertyException(dbus.exceptions.DBusException):
842
1177
"""A base class for D-Bus property-related exceptions
843
1178
"""
844
def __unicode__(self):
845
return unicode(str(self))
1179
pass
846
1180
847
1181
848
1182
class DBusPropertyAccessException(DBusPropertyException):
857
1191
pass
858
1192
859
1193
860
class DBusObjectWithProperties(dbus.service.Object):
861
"""A D-Bus object with properties.
1194
class DBusObjectWithAnnotations(dbus.service.Object):
1195
"""A D-Bus object with annotations.
862
1196
863
Classes inheriting from this can use the dbus_service_property
864
decorator to expose methods as D-Bus properties. It exposes the
865
standard Get(), Set(), and GetAll() methods on the D-Bus.
1197
Classes inheriting from this can use the dbus_annotations
1198
decorator to add annotations to methods or signals.
866
1199
"""
867
1200
868
1201
@staticmethod
872
1205
If called like _is_dbus_thing("method") it returns a function
873
1206
suitable for use as predicate to inspect.getmembers().
874
1207
"""
875
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1208
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
876
1209
False)
877
1210
878
1211
def _get_all_dbus_things(self, thing):
879
1212
"""Returns a generator of (name, attribute) pairs
880
1213
"""
881
return ((getattr(athing.__get__(self), "_dbus_name",
882
name),
1214
return ((getattr(athing.__get__(self), "_dbus_name", name),
883
1215
athing.__get__(self))
884
1216
for cls in self.__class__.__mro__
885
1217
for name, athing in
886
inspect.getmembers(cls,
887
self._is_dbus_thing(thing)))
1218
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1219
1220
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1221
out_signature = "s",
1222
path_keyword = 'object_path',
1223
connection_keyword = 'connection')
1224
def Introspect(self, object_path, connection):
1225
"""Overloading of standard D-Bus method.
1226
1227
Inserts annotation tags on methods and signals.
1228
"""
1229
xmlstring = dbus.service.Object.Introspect(self, object_path,
1230
connection)
1231
try:
1232
document = xml.dom.minidom.parseString(xmlstring)
1233
1234
for if_tag in document.getElementsByTagName("interface"):
1235
# Add annotation tags
1236
for typ in ("method", "signal"):
1237
for tag in if_tag.getElementsByTagName(typ):
1238
annots = dict()
1239
for name, prop in (self.
1240
_get_all_dbus_things(typ)):
1241
if (name == tag.getAttribute("name")
1242
and prop._dbus_interface
1243
== if_tag.getAttribute("name")):
1244
annots.update(getattr(
1245
prop, "_dbus_annotations", {}))
1246
for name, value in annots.items():
1247
ann_tag = document.createElement(
1248
"annotation")
1249
ann_tag.setAttribute("name", name)
1250
ann_tag.setAttribute("value", value)
1251
tag.appendChild(ann_tag)
1252
# Add interface annotation tags
1253
for annotation, value in dict(
1254
itertools.chain.from_iterable(
1255
annotations().items()
1256
for name, annotations
1257
in self._get_all_dbus_things("interface")
1258
if name == if_tag.getAttribute("name")
1259
)).items():
1260
ann_tag = document.createElement("annotation")
1261
ann_tag.setAttribute("name", annotation)
1262
ann_tag.setAttribute("value", value)
1263
if_tag.appendChild(ann_tag)
1264
# Fix argument name for the Introspect method itself
1265
if (if_tag.getAttribute("name")
1266
== dbus.INTROSPECTABLE_IFACE):
1267
for cn in if_tag.getElementsByTagName("method"):
1268
if cn.getAttribute("name") == "Introspect":
1269
for arg in cn.getElementsByTagName("arg"):
1270
if (arg.getAttribute("direction")
1271
== "out"):
1272
arg.setAttribute("name",
1273
"xml_data")
1274
xmlstring = document.toxml("utf-8")
1275
document.unlink()
1276
except (AttributeError, xml.dom.DOMException,
1277
xml.parsers.expat.ExpatError) as error:
1278
logger.error("Failed to override Introspection method",
1279
exc_info=error)
1280
return xmlstring
1281
1282
1283
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1284
"""A D-Bus object with properties.
1285
1286
Classes inheriting from this can use the dbus_service_property
1287
decorator to expose methods as D-Bus properties. It exposes the
1288
standard Get(), Set(), and GetAll() methods on the D-Bus.
1289
"""
888
1290
889
1291
def _get_dbus_property(self, interface_name, property_name):
890
1292
"""Returns a bound method if one exists which is a D-Bus
891
1293
property with the specified name and interface.
892
1294
"""
893
for cls in self.__class__.__mro__:
894
for name, value in (inspect.getmembers
895
(cls,
896
self._is_dbus_thing("property"))):
1295
for cls in self.__class__.__mro__:
1296
for name, value in inspect.getmembers(
1297
cls, self._is_dbus_thing("property")):
897
1298
if (value._dbus_name == property_name
898
1299
and value._dbus_interface == interface_name):
899
1300
return value.__get__(self)
900
1301
901
1302
# No such property
902
raise DBusPropertyNotFound(self.dbus_object_path + ":"
903
+ interface_name + "."
904
+ property_name)
905
906
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1303
raise DBusPropertyNotFound("{}:{}.{}".format(
1304
self.dbus_object_path, interface_name, property_name))
1305
1306
@classmethod
1307
def _get_all_interface_names(cls):
1308
"""Get a sequence of all interfaces supported by an object"""
1309
return (name for name in set(getattr(getattr(x, attr),
1310
"_dbus_interface", None)
1311
for x in (inspect.getmro(cls))
1312
for attr in dir(x))
1313
if name is not None)
1314
1315
@dbus.service.method(dbus.PROPERTIES_IFACE,
1316
in_signature="ss",
907
1317
out_signature="v")
908
1318
def Get(self, interface_name, property_name):
909
1319
"""Standard D-Bus property Get() method, see D-Bus standard.
927
1337
# The byte_arrays option is not supported yet on
928
1338
# signatures other than "ay".
929
1339
if prop._dbus_signature != "ay":
930
raise ValueError
1340
raise ValueError("Byte arrays not supported for non-"
1341
"'ay' signature {!r}"
1342
.format(prop._dbus_signature))
931
1343
value = dbus.ByteArray(b''.join(chr(byte)
932
1344
for byte in value))
933
1345
prop(value)
934
1346
935
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1347
@dbus.service.method(dbus.PROPERTIES_IFACE,
1348
in_signature="s",
936
1349
out_signature="a{sv}")
937
1350
def GetAll(self, interface_name):
938
1351
"""Standard D-Bus property GetAll() method, see D-Bus
953
1366
if not hasattr(value, "variant_level"):
954
1367
properties[name] = value
955
1368
continue
956
properties[name] = type(value)(value, variant_level=
957
value.variant_level+1)
1369
properties[name] = type(value)(
1370
value, variant_level = value.variant_level + 1)
958
1371
return dbus.Dictionary(properties, signature="sv")
959
1372
1373
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1374
def PropertiesChanged(self, interface_name, changed_properties,
1375
invalidated_properties):
1376
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1377
standard.
1378
"""
1379
pass
1380
960
1381
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
961
1382
out_signature="s",
962
1383
path_keyword='object_path',
966
1387
967
1388
Inserts property tags and interface annotation tags.
968
1389
"""
969
xmlstring = dbus.service.Object.Introspect(self, object_path,
970
connection)
1390
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1391
object_path,
1392
connection)
971
1393
try:
972
1394
document = xml.dom.minidom.parseString(xmlstring)
1395
973
1396
def make_tag(document, name, prop):
974
1397
e = document.createElement("property")
975
1398
e.setAttribute("name", name)
976
1399
e.setAttribute("type", prop._dbus_signature)
977
1400
e.setAttribute("access", prop._dbus_access)
978
1401
return e
1402
979
1403
for if_tag in document.getElementsByTagName("interface"):
980
1404
# Add property tags
981
1405
for tag in (make_tag(document, name, prop)
984
1408
if prop._dbus_interface
985
1409
== if_tag.getAttribute("name")):
986
1410
if_tag.appendChild(tag)
987
# Add annotation tags
988
for typ in ("method", "signal", "property"):
989
for tag in if_tag.getElementsByTagName(typ):
990
annots = dict()
991
for name, prop in (self.
992
_get_all_dbus_things(typ)):
993
if (name == tag.getAttribute("name")
994
and prop._dbus_interface
995
== if_tag.getAttribute("name")):
996
annots.update(getattr
997
(prop,
998
"_dbus_annotations",
999
{}))
1000
for name, value in annots.iteritems():
1001
ann_tag = document.createElement(
1002
"annotation")
1003
ann_tag.setAttribute("name", name)
1004
ann_tag.setAttribute("value", value)
1005
tag.appendChild(ann_tag)
1006
# Add interface annotation tags
1007
for annotation, value in dict(
1008
itertools.chain.from_iterable(
1009
annotations().iteritems()
1010
for name, annotations in
1011
self._get_all_dbus_things("interface")
1012
if name == if_tag.getAttribute("name")
1013
)).iteritems():
1014
ann_tag = document.createElement("annotation")
1015
ann_tag.setAttribute("name", annotation)
1016
ann_tag.setAttribute("value", value)
1017
if_tag.appendChild(ann_tag)
1411
# Add annotation tags for properties
1412
for tag in if_tag.getElementsByTagName("property"):
1413
annots = dict()
1414
for name, prop in self._get_all_dbus_things(
1415
"property"):
1416
if (name == tag.getAttribute("name")
1417
and prop._dbus_interface
1418
== if_tag.getAttribute("name")):
1419
annots.update(getattr(
1420
prop, "_dbus_annotations", {}))
1421
for name, value in annots.items():
1422
ann_tag = document.createElement(
1423
"annotation")
1424
ann_tag.setAttribute("name", name)
1425
ann_tag.setAttribute("value", value)
1426
tag.appendChild(ann_tag)
1018
1427
# Add the names to the return values for the
1019
1428
# "org.freedesktop.DBus.Properties" methods
1020
1429
if (if_tag.getAttribute("name")
1038
1447
exc_info=error)
1039
1448
return xmlstring
1040
1449
1450
try:
1451
dbus.OBJECT_MANAGER_IFACE
1452
except AttributeError:
1453
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1454
1455
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1456
"""A D-Bus object with an ObjectManager.
1457
1458
Classes inheriting from this exposes the standard
1459
GetManagedObjects call and the InterfacesAdded and
1460
InterfacesRemoved signals on the standard
1461
"org.freedesktop.DBus.ObjectManager" interface.
1462
1463
Note: No signals are sent automatically; they must be sent
1464
manually.
1465
"""
1466
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1467
out_signature = "a{oa{sa{sv}}}")
1468
def GetManagedObjects(self):
1469
"""This function must be overridden"""
1470
raise NotImplementedError()
1471
1472
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1473
signature = "oa{sa{sv}}")
1474
def InterfacesAdded(self, object_path, interfaces_and_properties):
1475
pass
1476
1477
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1478
def InterfacesRemoved(self, object_path, interfaces):
1479
pass
1480
1481
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1482
out_signature = "s",
1483
path_keyword = 'object_path',
1484
connection_keyword = 'connection')
1485
def Introspect(self, object_path, connection):
1486
"""Overloading of standard D-Bus method.
1487
1488
Override return argument name of GetManagedObjects to be
1489
"objpath_interfaces_and_properties"
1490
"""
1491
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1492
object_path,
1493
connection)
1494
try:
1495
document = xml.dom.minidom.parseString(xmlstring)
1496
1497
for if_tag in document.getElementsByTagName("interface"):
1498
# Fix argument name for the GetManagedObjects method
1499
if (if_tag.getAttribute("name")
1500
== dbus.OBJECT_MANAGER_IFACE):
1501
for cn in if_tag.getElementsByTagName("method"):
1502
if (cn.getAttribute("name")
1503
== "GetManagedObjects"):
1504
for arg in cn.getElementsByTagName("arg"):
1505
if (arg.getAttribute("direction")
1506
== "out"):
1507
arg.setAttribute(
1508
"name",
1509
"objpath_interfaces"
1510
"_and_properties")
1511
xmlstring = document.toxml("utf-8")
1512
document.unlink()
1513
except (AttributeError, xml.dom.DOMException,
1514
xml.parsers.expat.ExpatError) as error:
1515
logger.error("Failed to override Introspection method",
1516
exc_info = error)
1517
return xmlstring
1041
1518
1042
1519
def datetime_to_dbus(dt, variant_level=0):
1043
1520
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1044
1521
if dt is None:
1045
1522
return dbus.String("", variant_level = variant_level)
1046
return dbus.String(dt.isoformat(),
1047
variant_level=variant_level)
1523
return dbus.String(dt.isoformat(), variant_level=variant_level)
1048
1524
1049
1525
1050
1526
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1070
1546
(from DBusObjectWithProperties) and interfaces (from the
1071
1547
dbus_interface_annotations decorator).
1072
1548
"""
1549
1073
1550
def wrapper(cls):
1074
1551
for orig_interface_name, alt_interface_name in (
1075
alt_interface_names.iteritems()):
1552
alt_interface_names.items()):
1076
1553
attr = {}
1077
1554
interface_names = set()
1078
1555
# Go though all attributes of the class
1080
1557
# Ignore non-D-Bus attributes, and D-Bus attributes
1081
1558
# with the wrong interface name
1082
1559
if (not hasattr(attribute, "_dbus_interface")
1083
or not attribute._dbus_interface
1084
.startswith(orig_interface_name)):
1560
or not attribute._dbus_interface.startswith(
1561
orig_interface_name)):
1085
1562
continue
1086
1563
# Create an alternate D-Bus interface name based on
1087
1564
# the current name
1088
alt_interface = (attribute._dbus_interface
1089
.replace(orig_interface_name,
1090
alt_interface_name))
1565
alt_interface = attribute._dbus_interface.replace(
1566
orig_interface_name, alt_interface_name)
1091
1567
interface_names.add(alt_interface)
1092
1568
# Is this a D-Bus signal?
1093
1569
if getattr(attribute, "_dbus_is_signal", False):
1094
1570
# Extract the original non-method undecorated
1095
1571
# function by black magic
1096
nonmethod_func = (dict(
1572
if sys.version_info.major == 2:
1573
nonmethod_func = (dict(
1097
1574
zip(attribute.func_code.co_freevars,
1098
attribute.__closure__))["func"]
1099
.cell_contents)
1575
attribute.__closure__))
1576
["func"].cell_contents)
1577
else:
1578
nonmethod_func = (dict(
1579
zip(attribute.__code__.co_freevars,
1580
attribute.__closure__))
1581
["func"].cell_contents)
1100
1582
# Create a new, but exactly alike, function
1101
1583
# object, and decorate it to be a new D-Bus signal
1102
1584
# with the alternate D-Bus interface name
1103
new_function = (dbus.service.signal
1104
(alt_interface,
1105
attribute._dbus_signature)
1106
(types.FunctionType(
1107
nonmethod_func.func_code,
1108
nonmethod_func.func_globals,
1109
nonmethod_func.func_name,
1110
nonmethod_func.func_defaults,
1111
nonmethod_func.func_closure)))
1585
new_function = copy_function(nonmethod_func)
1586
new_function = (dbus.service.signal(
1587
alt_interface,
1588
attribute._dbus_signature)(new_function))
1112
1589
# Copy annotations, if any
1113
1590
try:
1114
new_function._dbus_annotations = (
1115
dict(attribute._dbus_annotations))
1591
new_function._dbus_annotations = dict(
1592
attribute._dbus_annotations)
1116
1593
except AttributeError:
1117
1594
pass
1118
1595
# Define a creator of a function to call both the
1123
1600
"""This function is a scope container to pass
1124
1601
func1 and func2 to the "call_both" function
1125
1602
outside of its arguments"""
1603
1604
@functools.wraps(func2)
1126
1605
def call_both(*args, **kwargs):
1127
1606
"""This function will emit two D-Bus
1128
1607
signals by calling func1 and func2"""
1129
1608
func1(*args, **kwargs)
1130
1609
func2(*args, **kwargs)
1610
# Make wrapper function look like a D-Bus signal
1611
for name, attr in inspect.getmembers(func2):
1612
if name.startswith("_dbus_"):
1613
setattr(call_both, name, attr)
1614
1131
1615
return call_both
1132
1616
# Create the "call_both" function and add it to
1133
1617
# the class
1138
1622
# object. Decorate it to be a new D-Bus method
1139
1623
# with the alternate D-Bus interface name. Add it
1140
1624
# to the class.
1141
attr[attrname] = (dbus.service.method
1142
(alt_interface,
1143
attribute._dbus_in_signature,
1144
attribute._dbus_out_signature)
1145
(types.FunctionType
1146
(attribute.func_code,
1147
attribute.func_globals,
1148
attribute.func_name,
1149
attribute.func_defaults,
1150
attribute.func_closure)))
1625
attr[attrname] = (
1626
dbus.service.method(
1627
alt_interface,
1628
attribute._dbus_in_signature,
1629
attribute._dbus_out_signature)
1630
(copy_function(attribute)))
1151
1631
# Copy annotations, if any
1152
1632
try:
1153
attr[attrname]._dbus_annotations = (
1154
dict(attribute._dbus_annotations))
1633
attr[attrname]._dbus_annotations = dict(
1634
attribute._dbus_annotations)
1155
1635
except AttributeError:
1156
1636
pass
1157
1637
# Is this a D-Bus property?
1160
1640
# object, and decorate it to be a new D-Bus
1161
1641
# property with the alternate D-Bus interface
1162
1642
# name. Add it to the class.
1163
attr[attrname] = (dbus_service_property
1164
(alt_interface,
1165
attribute._dbus_signature,
1166
attribute._dbus_access,
1167
attribute
1168
._dbus_get_args_options
1169
["byte_arrays"])
1170
(types.FunctionType
1171
(attribute.func_code,
1172
attribute.func_globals,
1173
attribute.func_name,
1174
attribute.func_defaults,
1175
attribute.func_closure)))
1643
attr[attrname] = (dbus_service_property(
1644
alt_interface, attribute._dbus_signature,
1645
attribute._dbus_access,
1646
attribute._dbus_get_args_options
1647
["byte_arrays"])
1648
(copy_function(attribute)))
1176
1649
# Copy annotations, if any
1177
1650
try:
1178
attr[attrname]._dbus_annotations = (
1179
dict(attribute._dbus_annotations))
1651
attr[attrname]._dbus_annotations = dict(
1652
attribute._dbus_annotations)
1180
1653
except AttributeError:
1181
1654
pass
1182
1655
# Is this a D-Bus interface?
1185
1658
# object. Decorate it to be a new D-Bus interface
1186
1659
# with the alternate D-Bus interface name. Add it
1187
1660
# to the class.
1188
attr[attrname] = (dbus_interface_annotations
1189
(alt_interface)
1190
(types.FunctionType
1191
(attribute.func_code,
1192
attribute.func_globals,
1193
attribute.func_name,
1194
attribute.func_defaults,
1195
attribute.func_closure)))
1661
attr[attrname] = (
1662
dbus_interface_annotations(alt_interface)
1663
(copy_function(attribute)))
1196
1664
if deprecate:
1197
1665
# Deprecate all alternate interfaces
1198
iname="_AlternateDBusNames_interface_annotation{0}"
1666
iname="_AlternateDBusNames_interface_annotation{}"
1199
1667
for interface_name in interface_names:
1668
1200
1669
@dbus_interface_annotations(interface_name)
1201
1670
def func(self):
1202
1671
return { "org.freedesktop.DBus.Deprecated":
1203
"true" }
1672
"true" }
1204
1673
# Find an unused name
1205
1674
for aname in (iname.format(i)
1206
1675
for i in itertools.count()):
1210
1679
if interface_names:
1211
1680
# Replace the class with a new subclass of it with
1212
1681
# methods, signals, etc. as created above.
1213
cls = type(b"{0}Alternate".format(cls.__name__),
1214
(cls,), attr)
1682
if sys.version_info.major == 2:
1683
cls = type(b"{}Alternate".format(cls.__name__),
1684
(cls, ), attr)
1685
else:
1686
cls = type("{}Alternate".format(cls.__name__),
1687
(cls, ), attr)
1215
1688
return cls
1689
1216
1690
return wrapper
1217
1691
1218
1692
1219
1693
@alternate_dbus_interfaces({"se.recompile.Mandos":
1220
"se.bsnet.fukt.Mandos"})
1694
"se.bsnet.fukt.Mandos"})
1221
1695
class ClientDBus(Client, DBusObjectWithProperties):
1222
1696
"""A Client class using D-Bus
1223
1697
1227
1701
"""
1228
1702
1229
1703
runtime_expansions = (Client.runtime_expansions
1230
+ ("dbus_object_path",))
1704
+ ("dbus_object_path", ))
1705
1706
_interface = "se.recompile.Mandos.Client"
1231
1707
1232
1708
# dbus.service.Object doesn't use super(), so we can't either.
1233
1709
1236
1712
Client.__init__(self, *args, **kwargs)
1237
1713
# Only now, when this client is initialized, can it show up on
1238
1714
# the D-Bus
1239
client_object_name = unicode(self.name).translate(
1715
client_object_name = str(self.name).translate(
1240
1716
{ord("."): ord("_"),
1241
1717
ord("-"): ord("_")})
1242
self.dbus_object_path = (dbus.ObjectPath
1243
("/clients/" + client_object_name))
1718
self.dbus_object_path = dbus.ObjectPath(
1719
"/clients/" + client_object_name)
1244
1720
DBusObjectWithProperties.__init__(self, self.bus,
1245
1721
self.dbus_object_path)
1246
1722
1247
def notifychangeproperty(transform_func,
1248
dbus_name, type_func=lambda x: x,
1249
variant_level=1):
1723
def notifychangeproperty(transform_func, dbus_name,
1724
type_func=lambda x: x,
1725
variant_level=1,
1726
invalidate_only=False,
1727
_interface=_interface):
1250
1728
""" Modify a variable so that it's a property which announces
1251
1729
its changes to DBus.
1252
1730
1257
1735
to the D-Bus. Default: no transform
1258
1736
variant_level: D-Bus variant level. Default: 1
1259
1737
"""
1260
attrname = "_{0}".format(dbus_name)
1738
attrname = "_{}".format(dbus_name)
1739
1261
1740
def setter(self, value):
1262
1741
if hasattr(self, "dbus_object_path"):
1263
1742
if (not hasattr(self, attrname) or
1264
1743
type_func(getattr(self, attrname, None))
1265
1744
!= type_func(value)):
1266
dbus_value = transform_func(type_func(value),
1267
variant_level
1268
=variant_level)
1269
self.PropertyChanged(dbus.String(dbus_name),
1270
dbus_value)
1745
if invalidate_only:
1746
self.PropertiesChanged(
1747
_interface, dbus.Dictionary(),
1748
dbus.Array((dbus_name, )))
1749
else:
1750
dbus_value = transform_func(
1751
type_func(value),
1752
variant_level = variant_level)
1753
self.PropertyChanged(dbus.String(dbus_name),
1754
dbus_value)
1755
self.PropertiesChanged(
1756
_interface,
1757
dbus.Dictionary({ dbus.String(dbus_name):
1758
dbus_value }),
1759
dbus.Array())
1271
1760
setattr(self, attrname, value)
1272
1761
1273
1762
return property(lambda self: getattr(self, attrname), setter)
1279
1768
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1280
1769
last_enabled = notifychangeproperty(datetime_to_dbus,
1281
1770
"LastEnabled")
1282
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1283
type_func = lambda checker:
1284
checker is not None)
1771
checker = notifychangeproperty(
1772
dbus.Boolean, "CheckerRunning",
1773
type_func = lambda checker: checker is not None)
1285
1774
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1286
1775
"LastCheckedOK")
1287
1776
last_checker_status = notifychangeproperty(dbus.Int16,
1290
1779
datetime_to_dbus, "LastApprovalRequest")
1291
1780
approved_by_default = notifychangeproperty(dbus.Boolean,
1292
1781
"ApprovedByDefault")
1293
approval_delay = notifychangeproperty(dbus.UInt64,
1294
"ApprovalDelay",
1295
type_func =
1296
timedelta_to_milliseconds)
1782
approval_delay = notifychangeproperty(
1783
dbus.UInt64, "ApprovalDelay",
1784
type_func = lambda td: td.total_seconds() * 1000)
1297
1785
approval_duration = notifychangeproperty(
1298
1786
dbus.UInt64, "ApprovalDuration",
1299
type_func = timedelta_to_milliseconds)
1787
type_func = lambda td: td.total_seconds() * 1000)
1300
1788
host = notifychangeproperty(dbus.String, "Host")
1301
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1302
type_func =
1303
timedelta_to_milliseconds)
1789
timeout = notifychangeproperty(
1790
dbus.UInt64, "Timeout",
1791
type_func = lambda td: td.total_seconds() * 1000)
1304
1792
extended_timeout = notifychangeproperty(
1305
1793
dbus.UInt64, "ExtendedTimeout",
1306
type_func = timedelta_to_milliseconds)
1307
interval = notifychangeproperty(dbus.UInt64,
1308
"Interval",
1309
type_func =
1310
timedelta_to_milliseconds)
1794
type_func = lambda td: td.total_seconds() * 1000)
1795
interval = notifychangeproperty(
1796
dbus.UInt64, "Interval",
1797
type_func = lambda td: td.total_seconds() * 1000)
1311
1798
checker_command = notifychangeproperty(dbus.String, "Checker")
1799
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1800
invalidate_only=True)
1312
1801
1313
1802
del notifychangeproperty
1314
1803
1321
1810
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1322
1811
Client.__del__(self, *args, **kwargs)
1323
1812
1324
def checker_callback(self, pid, condition, command,
1325
*args, **kwargs):
1326
self.checker_callback_tag = None
1327
self.checker = None
1328
if os.WIFEXITED(condition):
1329
exitstatus = os.WEXITSTATUS(condition)
1813
def checker_callback(self, source, condition,
1814
connection, command, *args, **kwargs):
1815
ret = Client.checker_callback(self, source, condition,
1816
connection, command, *args,
1817
**kwargs)
1818
exitstatus = self.last_checker_status
1819
if exitstatus >= 0:
1330
1820
# Emit D-Bus signal
1331
1821
self.CheckerCompleted(dbus.Int16(exitstatus),
1332
dbus.Int64(condition),
1822
# This is specific to GNU libC
1823
dbus.Int64(exitstatus << 8),
1333
1824
dbus.String(command))
1334
1825
else:
1335
1826
# Emit D-Bus signal
1336
1827
self.CheckerCompleted(dbus.Int16(-1),
1337
dbus.Int64(condition),
1828
dbus.Int64(
1829
# This is specific to GNU libC
1830
(exitstatus << 8)
1831
| self.last_checker_signal),
1338
1832
dbus.String(command))
1339
1340
return Client.checker_callback(self, pid, condition, command,
1341
*args, **kwargs)
1833
return ret
1342
1834
1343
1835
def start_checker(self, *args, **kwargs):
1344
old_checker = self.checker
1345
if self.checker is not None:
1346
old_checker_pid = self.checker.pid
1347
else:
1348
old_checker_pid = None
1836
old_checker_pid = getattr(self.checker, "pid", None)
1349
1837
r = Client.start_checker(self, *args, **kwargs)
1350
1838
# Only if new checker process was started
1351
1839
if (self.checker is not None
1360
1848
1361
1849
def approve(self, value=True):
1362
1850
self.approved = value
1363
gobject.timeout_add(timedelta_to_milliseconds
1364
(self.approval_duration),
1365
self._reset_approved)
1851
GLib.timeout_add(int(self.approval_duration.total_seconds()
1852
* 1000), self._reset_approved)
1366
1853
self.send_changedstate()
1367
1854
1368
1855
## D-Bus methods, signals & properties
1369
_interface = "se.recompile.Mandos.Client"
1370
1856
1371
1857
## Interfaces
1372
1858
1373
@dbus_interface_annotations(_interface)
1374
def _foo(self):
1375
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1376
"false"}
1377
1378
1859
## Signals
1379
1860
1380
1861
# CheckerCompleted - signal
1390
1871
pass
1391
1872
1392
1873
# PropertyChanged - signal
1874
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1393
1875
@dbus.service.signal(_interface, signature="sv")
1394
1876
def PropertyChanged(self, property, value):
1395
1877
"D-Bus signal"
1429
1911
self.checked_ok()
1430
1912
1431
1913
# Enable - method
1914
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1432
1915
@dbus.service.method(_interface)
1433
1916
def Enable(self):
1434
1917
"D-Bus method"
1435
1918
self.enable()
1436
1919
1437
1920
# StartChecker - method
1921
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1438
1922
@dbus.service.method(_interface)
1439
1923
def StartChecker(self):
1440
1924
"D-Bus method"
1441
1925
self.start_checker()
1442
1926
1443
1927
# Disable - method
1928
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1444
1929
@dbus.service.method(_interface)
1445
1930
def Disable(self):
1446
1931
"D-Bus method"
1447
1932
self.disable()
1448
1933
1449
1934
# StopChecker - method
1935
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1450
1936
@dbus.service.method(_interface)
1451
1937
def StopChecker(self):
1452
1938
self.stop_checker()
1459
1945
return dbus.Boolean(bool(self.approvals_pending))
1460
1946
1461
1947
# ApprovedByDefault - property
1462
@dbus_service_property(_interface, signature="b",
1948
@dbus_service_property(_interface,
1949
signature="b",
1463
1950
access="readwrite")
1464
1951
def ApprovedByDefault_dbus_property(self, value=None):
1465
1952
if value is None: # get
1467
1954
self.approved_by_default = bool(value)
1468
1955
1469
1956
# ApprovalDelay - property
1470
@dbus_service_property(_interface, signature="t",
1957
@dbus_service_property(_interface,
1958
signature="t",
1471
1959
access="readwrite")
1472
1960
def ApprovalDelay_dbus_property(self, value=None):
1473
1961
if value is None: # get
1474
return dbus.UInt64(self.approval_delay_milliseconds())
1962
return dbus.UInt64(self.approval_delay.total_seconds()
1963
* 1000)
1475
1964
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1476
1965
1477
1966
# ApprovalDuration - property
1478
@dbus_service_property(_interface, signature="t",
1967
@dbus_service_property(_interface,
1968
signature="t",
1479
1969
access="readwrite")
1480
1970
def ApprovalDuration_dbus_property(self, value=None):
1481
1971
if value is None: # get
1482
return dbus.UInt64(timedelta_to_milliseconds(
1483
self.approval_duration))
1972
return dbus.UInt64(self.approval_duration.total_seconds()
1973
* 1000)
1484
1974
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1485
1975
1486
1976
# Name - property
1977
@dbus_annotations(
1978
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1487
1979
@dbus_service_property(_interface, signature="s", access="read")
1488
1980
def Name_dbus_property(self):
1489
1981
return dbus.String(self.name)
1490
1982
1491
1983
# Fingerprint - property
1984
@dbus_annotations(
1985
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1492
1986
@dbus_service_property(_interface, signature="s", access="read")
1493
1987
def Fingerprint_dbus_property(self):
1494
1988
return dbus.String(self.fingerprint)
1495
1989
1496
1990
# Host - property
1497
@dbus_service_property(_interface, signature="s",
1991
@dbus_service_property(_interface,
1992
signature="s",
1498
1993
access="readwrite")
1499
1994
def Host_dbus_property(self, value=None):
1500
1995
if value is None: # get
1501
1996
return dbus.String(self.host)
1502
self.host = unicode(value)
1997
self.host = str(value)
1503
1998
1504
1999
# Created - property
2000
@dbus_annotations(
2001
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1505
2002
@dbus_service_property(_interface, signature="s", access="read")
1506
2003
def Created_dbus_property(self):
1507
2004
return datetime_to_dbus(self.created)
1512
2009
return datetime_to_dbus(self.last_enabled)
1513
2010
1514
2011
# Enabled - property
1515
@dbus_service_property(_interface, signature="b",
2012
@dbus_service_property(_interface,
2013
signature="b",
1516
2014
access="readwrite")
1517
2015
def Enabled_dbus_property(self, value=None):
1518
2016
if value is None: # get
1523
2021
self.disable()
1524
2022
1525
2023
# LastCheckedOK - property
1526
@dbus_service_property(_interface, signature="s",
2024
@dbus_service_property(_interface,
2025
signature="s",
1527
2026
access="readwrite")
1528
2027
def LastCheckedOK_dbus_property(self, value=None):
1529
2028
if value is not None:
1532
2031
return datetime_to_dbus(self.last_checked_ok)
1533
2032
1534
2033
# LastCheckerStatus - property
1535
@dbus_service_property(_interface, signature="n",
1536
access="read")
2034
@dbus_service_property(_interface, signature="n", access="read")
1537
2035
def LastCheckerStatus_dbus_property(self):
1538
2036
return dbus.Int16(self.last_checker_status)
1539
2037
1548
2046
return datetime_to_dbus(self.last_approval_request)
1549
2047
1550
2048
# Timeout - property
1551
@dbus_service_property(_interface, signature="t",
2049
@dbus_service_property(_interface,
2050
signature="t",
1552
2051
access="readwrite")
1553
2052
def Timeout_dbus_property(self, value=None):
1554
2053
if value is None: # get
1555
return dbus.UInt64(self.timeout_milliseconds())
2054
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1556
2055
old_timeout = self.timeout
1557
2056
self.timeout = datetime.timedelta(0, 0, 0, value)
1558
2057
# Reschedule disabling
1566
2065
if (getattr(self, "disable_initiator_tag", None)
1567
2066
is None):
1568
2067
return
1569
gobject.source_remove(self.disable_initiator_tag)
1570
self.disable_initiator_tag = (
1571
gobject.timeout_add(
1572
timedelta_to_milliseconds(self.expires - now),
1573
self.disable))
2068
GLib.source_remove(self.disable_initiator_tag)
2069
self.disable_initiator_tag = GLib.timeout_add(
2070
int((self.expires - now).total_seconds() * 1000),
2071
self.disable)
1574
2072
1575
2073
# ExtendedTimeout - property
1576
@dbus_service_property(_interface, signature="t",
2074
@dbus_service_property(_interface,
2075
signature="t",
1577
2076
access="readwrite")
1578
2077
def ExtendedTimeout_dbus_property(self, value=None):
1579
2078
if value is None: # get
1580
return dbus.UInt64(self.extended_timeout_milliseconds())
2079
return dbus.UInt64(self.extended_timeout.total_seconds()
2080
* 1000)
1581
2081
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1582
2082
1583
2083
# Interval - property
1584
@dbus_service_property(_interface, signature="t",
2084
@dbus_service_property(_interface,
2085
signature="t",
1585
2086
access="readwrite")
1586
2087
def Interval_dbus_property(self, value=None):
1587
2088
if value is None: # get
1588
return dbus.UInt64(self.interval_milliseconds())
2089
return dbus.UInt64(self.interval.total_seconds() * 1000)
1589
2090
self.interval = datetime.timedelta(0, 0, 0, value)
1590
2091
if getattr(self, "checker_initiator_tag", None) is None:
1591
2092
return
1592
2093
if self.enabled:
1593
2094
# Reschedule checker run
1594
gobject.source_remove(self.checker_initiator_tag)
1595
self.checker_initiator_tag = (gobject.timeout_add
1596
(value, self.start_checker))
1597
self.start_checker() # Start one now, too
2095
GLib.source_remove(self.checker_initiator_tag)
2096
self.checker_initiator_tag = GLib.timeout_add(
2097
value, self.start_checker)
2098
self.start_checker() # Start one now, too
1598
2099
1599
2100
# Checker - property
1600
@dbus_service_property(_interface, signature="s",
2101
@dbus_service_property(_interface,
2102
signature="s",
1601
2103
access="readwrite")
1602
2104
def Checker_dbus_property(self, value=None):
1603
2105
if value is None: # get
1604
2106
return dbus.String(self.checker_command)
1605
self.checker_command = unicode(value)
2107
self.checker_command = str(value)
1606
2108
1607
2109
# CheckerRunning - property
1608
@dbus_service_property(_interface, signature="b",
2110
@dbus_service_property(_interface,
2111
signature="b",
1609
2112
access="readwrite")
1610
2113
def CheckerRunning_dbus_property(self, value=None):
1611
2114
if value is None: # get
1616
2119
self.stop_checker()
1617
2120
1618
2121
# ObjectPath - property
2122
@dbus_annotations(
2123
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2124
"org.freedesktop.DBus.Deprecated": "true"})
1619
2125
@dbus_service_property(_interface, signature="o", access="read")
1620
2126
def ObjectPath_dbus_property(self):
1621
2127
return self.dbus_object_path # is already a dbus.ObjectPath
1622
2128
1623
2129
# Secret = property
1624
@dbus_service_property(_interface, signature="ay",
1625
access="write", byte_arrays=True)
2130
@dbus_annotations(
2131
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2132
"invalidates"})
2133
@dbus_service_property(_interface,
2134
signature="ay",
2135
access="write",
2136
byte_arrays=True)
1626
2137
def Secret_dbus_property(self, value):
1627
self.secret = str(value)
2138
self.secret = bytes(value)
1628
2139
1629
2140
del _interface
1630
2141
1634
2145
self._pipe = child_pipe
1635
2146
self._pipe.send(('init', fpr, address))
1636
2147
if not self._pipe.recv():
1637
raise KeyError()
2148
raise KeyError(fpr)
1638
2149
1639
2150
def __getattribute__(self, name):
1640
2151
if name == '_pipe':
1644
2155
if data[0] == 'data':
1645
2156
return data[1]
1646
2157
if data[0] == 'function':
2158
1647
2159
def func(*args, **kwargs):
1648
2160
self._pipe.send(('funcall', name, args, kwargs))
1649
2161
return self._pipe.recv()[1]
2162
1650
2163
return func
1651
2164
1652
2165
def __setattr__(self, name, value):
1664
2177
def handle(self):
1665
2178
with contextlib.closing(self.server.child_pipe) as child_pipe:
1666
2179
logger.info("TCP connection from: %s",
1667
unicode(self.client_address))
2180
str(self.client_address))
1668
2181
logger.debug("Pipe FD: %d",
1669
2182
self.server.child_pipe.fileno())
1670
2183
1671
session = (gnutls.connection
1672
.ClientSession(self.request,
1673
gnutls.connection
1674
.X509Credentials()))
1675
1676
# Note: gnutls.connection.X509Credentials is really a
1677
# generic GnuTLS certificate credentials object so long as
1678
# no X.509 keys are added to it. Therefore, we can use it
1679
# here despite using OpenPGP certificates.
2184
session = gnutls.ClientSession(self.request)
1680
2185
1681
2186
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1682
2187
# "+AES-256-CBC", "+SHA1",
1686
2191
priority = self.server.gnutls_priority
1687
2192
if priority is None:
1688
2193
priority = "NORMAL"
1689
(gnutls.library.functions
1690
.gnutls_priority_set_direct(session._c_object,
1691
priority, None))
2194
gnutls.priority_set_direct(session._c_object,
2195
priority.encode("utf-8"),
2196
None)
1692
2197
1693
2198
# Start communication using the Mandos protocol
1694
2199
# Get protocol number
1696
2201
logger.debug("Protocol version: %r", line)
1697
2202
try:
1698
2203
if int(line.strip().split()[0]) > 1:
1699
raise RuntimeError
2204
raise RuntimeError(line)
1700
2205
except (ValueError, IndexError, RuntimeError) as error:
1701
2206
logger.error("Unknown protocol version: %s", error)
1702
2207
return
1704
2209
# Start GnuTLS connection
1705
2210
try:
1706
2211
session.handshake()
1707
except gnutls.errors.GNUTLSError as error:
2212
except gnutls.Error as error:
1708
2213
logger.warning("Handshake failed: %s", error)
1709
2214
# Do not run session.bye() here: the session is not
1710
2215
# established. Just abandon the request.
1714
2219
approval_required = False
1715
2220
try:
1716
2221
try:
1717
fpr = self.fingerprint(self.peer_certificate
1718
(session))
1719
except (TypeError,
1720
gnutls.errors.GNUTLSError) as error:
2222
fpr = self.fingerprint(
2223
self.peer_certificate(session))
2224
except (TypeError, gnutls.Error) as error:
1721
2225
logger.warning("Bad certificate: %s", error)
1722
2226
return
1723
2227
logger.debug("Fingerprint: %s", fpr)
1736
2240
while True:
1737
2241
if not client.enabled:
1738
2242
logger.info("Client %s is disabled",
1739
client.name)
2243
client.name)
1740
2244
if self.server.use_dbus:
1741
2245
# Emit D-Bus signal
1742
2246
client.Rejected("Disabled")
1751
2255
if self.server.use_dbus:
1752
2256
# Emit D-Bus signal
1753
2257
client.NeedApproval(
1754
client.approval_delay_milliseconds(),
1755
client.approved_by_default)
2258
client.approval_delay.total_seconds()
2259
* 1000, client.approved_by_default)
1756
2260
else:
1757
2261
logger.warning("Client %s was not approved",
1758
2262
client.name)
1764
2268
#wait until timeout or approved
1765
2269
time = datetime.datetime.now()
1766
2270
client.changedstate.acquire()
1767
client.changedstate.wait(
1768
float(timedelta_to_milliseconds(delay)
1769
/ 1000))
2271
client.changedstate.wait(delay.total_seconds())
1770
2272
client.changedstate.release()
1771
2273
time2 = datetime.datetime.now()
1772
2274
if (time2 - time) >= delay:
1783
2285
else:
1784
2286
delay -= time2 - time
1785
2287
1786
sent_size = 0
1787
while sent_size < len(client.secret):
1788
try:
1789
sent = session.send(client.secret[sent_size:])
1790
except gnutls.errors.GNUTLSError as error:
1791
logger.warning("gnutls send failed",
1792
exc_info=error)
1793
return
1794
logger.debug("Sent: %d, remaining: %d",
1795
sent, len(client.secret)
1796
- (sent_size + sent))
1797
sent_size += sent
2288
try:
2289
session.send(client.secret)
2290
except gnutls.Error as error:
2291
logger.warning("gnutls send failed",
2292
exc_info = error)
2293
return
1798
2294
1799
2295
logger.info("Sending secret to %s", client.name)
1800
2296
# bump the timeout using extended_timeout
1808
2304
client.approvals_pending -= 1
1809
2305
try:
1810
2306
session.bye()
1811
except gnutls.errors.GNUTLSError as error:
2307
except gnutls.Error as error:
1812
2308
logger.warning("GnuTLS bye failed",
1813
2309
exc_info=error)
1814
2310
1816
2312
def peer_certificate(session):
1817
2313
"Return the peer's OpenPGP certificate as a bytestring"
1818
2314
# If not an OpenPGP certificate...
1819
if (gnutls.library.functions
1820
.gnutls_certificate_type_get(session._c_object)
1821
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1822
# ...do the normal thing
1823
return session.peer_certificate
2315
if (gnutls.certificate_type_get(session._c_object)
2316
!= gnutls.CRT_OPENPGP):
2317
# ...return invalid data
2318
return b""
1824
2319
list_size = ctypes.c_uint(1)
1825
cert_list = (gnutls.library.functions
1826
.gnutls_certificate_get_peers
2320
cert_list = (gnutls.certificate_get_peers
1827
2321
(session._c_object, ctypes.byref(list_size)))
1828
2322
if not bool(cert_list) and list_size.value != 0:
1829
raise gnutls.errors.GNUTLSError("error getting peer"
1830
" certificate")
2323
raise gnutls.Error("error getting peer certificate")
1831
2324
if list_size.value == 0:
1832
2325
return None
1833
2326
cert = cert_list[0]
1837
2330
def fingerprint(openpgp):
1838
2331
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1839
2332
# New GnuTLS "datum" with the OpenPGP public key
1840
datum = (gnutls.library.types
1841
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1842
ctypes.POINTER
1843
(ctypes.c_ubyte)),
1844
ctypes.c_uint(len(openpgp))))
2333
datum = gnutls.datum_t(
2334
ctypes.cast(ctypes.c_char_p(openpgp),
2335
ctypes.POINTER(ctypes.c_ubyte)),
2336
ctypes.c_uint(len(openpgp)))
1845
2337
# New empty GnuTLS certificate
1846
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1847
(gnutls.library.functions
1848
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2338
crt = gnutls.openpgp_crt_t()
2339
gnutls.openpgp_crt_init(ctypes.byref(crt))
1849
2340
# Import the OpenPGP public key into the certificate
1850
(gnutls.library.functions
1851
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1852
gnutls.library.constants
1853
.GNUTLS_OPENPGP_FMT_RAW))
2341
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2342
gnutls.OPENPGP_FMT_RAW)
1854
2343
# Verify the self signature in the key
1855
2344
crtverify = ctypes.c_uint()
1856
(gnutls.library.functions
1857
.gnutls_openpgp_crt_verify_self(crt, 0,
1858
ctypes.byref(crtverify)))
2345
gnutls.openpgp_crt_verify_self(crt, 0,
2346
ctypes.byref(crtverify))
1859
2347
if crtverify.value != 0:
1860
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1861
raise (gnutls.errors.CertificateSecurityError
1862
("Verify failed"))
2348
gnutls.openpgp_crt_deinit(crt)
2349
raise gnutls.CertificateSecurityError("Verify failed")
1863
2350
# New buffer for the fingerprint
1864
2351
buf = ctypes.create_string_buffer(20)
1865
2352
buf_len = ctypes.c_size_t()
1866
2353
# Get the fingerprint from the certificate into the buffer
1867
(gnutls.library.functions
1868
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1869
ctypes.byref(buf_len)))
2354
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2355
ctypes.byref(buf_len))
1870
2356
# Deinit the certificate
1871
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2357
gnutls.openpgp_crt_deinit(crt)
1872
2358
# Convert the buffer to a Python bytestring
1873
2359
fpr = ctypes.string_at(buf, buf_len.value)
1874
2360
# Convert the bytestring to hexadecimal notation
1878
2364
1879
2365
class MultiprocessingMixIn(object):
1880
2366
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2367
1881
2368
def sub_process_main(self, request, address):
1882
2369
try:
1883
2370
self.finish_request(request, address)
1895
2382
1896
2383
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1897
2384
""" adds a pipe to the MixIn """
2385
1898
2386
def process_request(self, request, client_address):
1899
2387
"""Overrides and wraps the original process_request().
1900
2388
1909
2397
1910
2398
def add_pipe(self, parent_pipe, proc):
1911
2399
"""Dummy function; override as necessary"""
1912
raise NotImplementedError
2400
raise NotImplementedError()
1913
2401
1914
2402
1915
2403
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1921
2409
interface: None or a network interface name (string)
1922
2410
use_ipv6: Boolean; to use IPv6 or not
1923
2411
"""
2412
1924
2413
def __init__(self, server_address, RequestHandlerClass,
1925
interface=None, use_ipv6=True, socketfd=None):
2414
interface=None,
2415
use_ipv6=True,
2416
socketfd=None):
1926
2417
"""If socketfd is set, use that file descriptor instead of
1927
2418
creating a new one with socket.socket().
1928
2419
"""
1964
2455
bind to an address or port if they were not specified."""
1965
2456
if self.interface is not None:
1966
2457
if SO_BINDTODEVICE is None:
1967
logger.error("SO_BINDTODEVICE does not exist;"
1968
" cannot bind to interface %s",
1969
self.interface)
1970
else:
1971
try:
1972
self.socket.setsockopt(socket.SOL_SOCKET,
1973
SO_BINDTODEVICE,
1974
str(self.interface + '\0'))
1975
except socket.error as error:
1976
if error.errno == errno.EPERM:
1977
logger.error("No permission to bind to"
1978
" interface %s", self.interface)
1979
elif error.errno == errno.ENOPROTOOPT:
1980
logger.error("SO_BINDTODEVICE not available;"
1981
" cannot bind to interface %s",
1982
self.interface)
1983
elif error.errno == errno.ENODEV:
1984
logger.error("Interface %s does not exist,"
1985
" cannot bind", self.interface)
1986
else:
1987
raise
2458
# Fall back to a hard-coded value which seems to be
2459
# common enough.
2460
logger.warning("SO_BINDTODEVICE not found, trying 25")
2461
SO_BINDTODEVICE = 25
2462
try:
2463
self.socket.setsockopt(
2464
socket.SOL_SOCKET, SO_BINDTODEVICE,
2465
(self.interface + "\0").encode("utf-8"))
2466
except socket.error as error:
2467
if error.errno == errno.EPERM:
2468
logger.error("No permission to bind to"
2469
" interface %s", self.interface)
2470
elif error.errno == errno.ENOPROTOOPT:
2471
logger.error("SO_BINDTODEVICE not available;"
2472
" cannot bind to interface %s",
2473
self.interface)
2474
elif error.errno == errno.ENODEV:
2475
logger.error("Interface %s does not exist,"
2476
" cannot bind", self.interface)
2477
else:
2478
raise
1988
2479
# Only bind(2) the socket if we really need to.
1989
2480
if self.server_address[0] or self.server_address[1]:
1990
2481
if not self.server_address[0]:
1995
2486
self.server_address = (any_address,
1996
2487
self.server_address[1])
1997
2488
elif not self.server_address[1]:
1998
self.server_address = (self.server_address[0],
1999
0)
2489
self.server_address = (self.server_address[0], 0)
2000
2490
# if self.interface:
2001
2491
# self.server_address = (self.server_address[0],
2002
2492
# 0, # port
2014
2504
gnutls_priority GnuTLS priority string
2015
2505
use_dbus: Boolean; to emit D-Bus signals or not
2016
2506
2017
Assumes a gobject.MainLoop event loop.
2507
Assumes a GLib.MainLoop event loop.
2018
2508
"""
2509
2019
2510
def __init__(self, server_address, RequestHandlerClass,
2020
interface=None, use_ipv6=True, clients=None,
2021
gnutls_priority=None, use_dbus=True, socketfd=None):
2511
interface=None,
2512
use_ipv6=True,
2513
clients=None,
2514
gnutls_priority=None,
2515
use_dbus=True,
2516
socketfd=None):
2022
2517
self.enabled = False
2023
2518
self.clients = clients
2024
2519
if self.clients is None:
2030
2525
interface = interface,
2031
2526
use_ipv6 = use_ipv6,
2032
2527
socketfd = socketfd)
2528
2033
2529
def server_activate(self):
2034
2530
if self.enabled:
2035
2531
return socketserver.TCPServer.server_activate(self)
2039
2535
2040
2536
def add_pipe(self, parent_pipe, proc):
2041
2537
# Call "handle_ipc" for both data and EOF events
2042
gobject.io_add_watch(parent_pipe.fileno(),
2043
gobject.IO_IN | gobject.IO_HUP,
2044
functools.partial(self.handle_ipc,
2045
parent_pipe =
2046
parent_pipe,
2047
proc = proc))
2538
GLib.io_add_watch(
2539
parent_pipe.fileno(),
2540
GLib.IO_IN | GLib.IO_HUP,
2541
functools.partial(self.handle_ipc,
2542
parent_pipe = parent_pipe,
2543
proc = proc))
2048
2544
2049
def handle_ipc(self, source, condition, parent_pipe=None,
2050
proc = None, client_object=None):
2545
def handle_ipc(self, source, condition,
2546
parent_pipe=None,
2547
proc = None,
2548
client_object=None):
2051
2549
# error, or the other end of multiprocessing.Pipe has closed
2052
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2550
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2053
2551
# Wait for other process to exit
2054
2552
proc.join()
2055
2553
return False
2062
2560
fpr = request[1]
2063
2561
address = request[2]
2064
2562
2065
for c in self.clients.itervalues():
2563
for c in self.clients.values():
2066
2564
if c.fingerprint == fpr:
2067
2565
client = c
2068
2566
break
2076
2574
parent_pipe.send(False)
2077
2575
return False
2078
2576
2079
gobject.io_add_watch(parent_pipe.fileno(),
2080
gobject.IO_IN | gobject.IO_HUP,
2081
functools.partial(self.handle_ipc,
2082
parent_pipe =
2083
parent_pipe,
2084
proc = proc,
2085
client_object =
2086
client))
2577
GLib.io_add_watch(
2578
parent_pipe.fileno(),
2579
GLib.IO_IN | GLib.IO_HUP,
2580
functools.partial(self.handle_ipc,
2581
parent_pipe = parent_pipe,
2582
proc = proc,
2583
client_object = client))
2087
2584
parent_pipe.send(True)
2088
2585
# remove the old hook in favor of the new above hook on
2089
2586
# same fileno
2095
2592
2096
2593
parent_pipe.send(('data', getattr(client_object,
2097
2594
funcname)(*args,
2098
**kwargs)))
2595
**kwargs)))
2099
2596
2100
2597
if command == 'getattr':
2101
2598
attrname = request[1]
2102
if callable(client_object.__getattribute__(attrname)):
2103
parent_pipe.send(('function',))
2599
if isinstance(client_object.__getattribute__(attrname),
2600
collections.Callable):
2601
parent_pipe.send(('function', ))
2104
2602
else:
2105
parent_pipe.send(('data', client_object
2106
.__getattribute__(attrname)))
2603
parent_pipe.send((
2604
'data', client_object.__getattribute__(attrname)))
2107
2605
2108
2606
if command == 'setattr':
2109
2607
attrname = request[1]
2140
2638
# avoid excessive use of external libraries.
2141
2639
2142
2640
# New type for defining tokens, syntax, and semantics all-in-one
2143
Token = collections.namedtuple("Token",
2144
("regexp", # To match token; if
2145
# "value" is not None,
2146
# must have a "group"
2147
# containing digits
2148
"value", # datetime.timedelta or
2149
# None
2150
"followers")) # Tokens valid after
2151
# this token
2641
Token = collections.namedtuple("Token", (
2642
"regexp", # To match token; if "value" is not None, must have
2643
# a "group" containing digits
2644
"value", # datetime.timedelta or None
2645
"followers")) # Tokens valid after this token
2152
2646
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2153
2647
# the "duration" ABNF definition in RFC 3339, Appendix A.
2154
2648
token_end = Token(re.compile(r"$"), None, frozenset())
2155
2649
token_second = Token(re.compile(r"(\d+)S"),
2156
2650
datetime.timedelta(seconds=1),
2157
frozenset((token_end,)))
2651
frozenset((token_end, )))
2158
2652
token_minute = Token(re.compile(r"(\d+)M"),
2159
2653
datetime.timedelta(minutes=1),
2160
2654
frozenset((token_second, token_end)))
2176
2670
frozenset((token_month, token_end)))
2177
2671
token_week = Token(re.compile(r"(\d+)W"),
2178
2672
datetime.timedelta(weeks=1),
2179
frozenset((token_end,)))
2673
frozenset((token_end, )))
2180
2674
token_duration = Token(re.compile(r"P"), None,
2181
2675
frozenset((token_year, token_month,
2182
2676
token_day, token_time,
2183
token_week))),
2677
token_week)))
2184
2678
# Define starting values
2185
2679
value = datetime.timedelta() # Value so far
2186
2680
found_token = None
2187
followers = frozenset(token_duration,) # Following valid tokens
2681
followers = frozenset((token_duration, )) # Following valid tokens
2188
2682
s = duration # String left to parse
2189
2683
# Loop until end token is found
2190
2684
while found_token is not token_end:
2207
2701
break
2208
2702
else:
2209
2703
# No currently valid tokens were found
2210
raise ValueError("Invalid RFC 3339 duration")
2704
raise ValueError("Invalid RFC 3339 duration: {!r}"
2705
.format(duration))
2211
2706
# End token found
2212
2707
return value
2213
2708
2237
2732
timevalue = datetime.timedelta(0)
2238
2733
for s in interval.split():
2239
2734
try:
2240
suffix = unicode(s[-1])
2735
suffix = s[-1]
2241
2736
value = int(s[:-1])
2242
2737
if suffix == "d":
2243
2738
delta = datetime.timedelta(value)
2250
2745
elif suffix == "w":
2251
2746
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2252
2747
else:
2253
raise ValueError("Unknown suffix {0!r}"
2254
.format(suffix))
2255
except (ValueError, IndexError) as e:
2748
raise ValueError("Unknown suffix {!r}".format(suffix))
2749
except IndexError as e:
2256
2750
raise ValueError(*(e.args))
2257
2751
timevalue += delta
2258
2752
return timevalue
2274
2768
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2275
2769
if not stat.S_ISCHR(os.fstat(null).st_mode):
2276
2770
raise OSError(errno.ENODEV,
2277
"{0} not a character device"
2771
"{} not a character device"
2278
2772
.format(os.devnull))
2279
2773
os.dup2(null, sys.stdin.fileno())
2280
2774
os.dup2(null, sys.stdout.fileno())
2290
2784
2291
2785
parser = argparse.ArgumentParser()
2292
2786
parser.add_argument("-v", "--version", action="version",
2293
version = "%(prog)s {0}".format(version),
2787
version = "%(prog)s {}".format(version),
2294
2788
help="show version number and exit")
2295
2789
parser.add_argument("-i", "--interface", metavar="IF",
2296
2790
help="Bind to interface IF")
2329
2823
help="Directory to save/restore state in")
2330
2824
parser.add_argument("--foreground", action="store_true",
2331
2825
help="Run in foreground", default=None)
2826
parser.add_argument("--no-zeroconf", action="store_false",
2827
dest="zeroconf", help="Do not use Zeroconf",
2828
default=None)
2332
2829
2333
2830
options = parser.parse_args()
2334
2831
2335
2832
if options.check:
2336
2833
import doctest
2337
doctest.testmod()
2338
sys.exit()
2834
fail_count, test_count = doctest.testmod()
2835
sys.exit(os.EX_OK if fail_count == 0 else 1)
2339
2836
2340
2837
# Default values for config file for server-global settings
2341
2838
server_defaults = { "interface": "",
2343
2840
"port": "",
2344
2841
"debug": "False",
2345
2842
"priority":
2346
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224",
2843
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2844
":+SIGN-DSA-SHA256",
2347
2845
"servicename": "Mandos",
2348
2846
"use_dbus": "True",
2349
2847
"use_ipv6": "True",
2352
2850
"socket": "",
2353
2851
"statedir": "/var/lib/mandos",
2354
2852
"foreground": "False",
2355
}
2853
"zeroconf": "True",
2854
}
2356
2855
2357
2856
# Parse config file for server-global settings
2358
2857
server_config = configparser.SafeConfigParser(server_defaults)
2359
2858
del server_defaults
2360
server_config.read(os.path.join(options.configdir,
2361
"mandos.conf"))
2859
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2362
2860
# Convert the SafeConfigParser object to a dict
2363
2861
server_settings = server_config.defaults()
2364
2862
# Use the appropriate methods on the non-string config options
2382
2880
# Override the settings from the config file with command line
2383
2881
# options, if set.
2384
2882
for option in ("interface", "address", "port", "debug",
2385
"priority", "servicename", "configdir",
2386
"use_dbus", "use_ipv6", "debuglevel", "restore",
2387
"statedir", "socket", "foreground"):
2883
"priority", "servicename", "configdir", "use_dbus",
2884
"use_ipv6", "debuglevel", "restore", "statedir",
2885
"socket", "foreground", "zeroconf"):
2388
2886
value = getattr(options, option)
2389
2887
if value is not None:
2390
2888
server_settings[option] = value
2391
2889
del options
2392
2890
# Force all strings to be unicode
2393
2891
for option in server_settings.keys():
2394
if type(server_settings[option]) is str:
2395
server_settings[option] = unicode(server_settings[option])
2892
if isinstance(server_settings[option], bytes):
2893
server_settings[option] = (server_settings[option]
2894
.decode("utf-8"))
2396
2895
# Force all boolean options to be boolean
2397
2896
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2398
"foreground"):
2897
"foreground", "zeroconf"):
2399
2898
server_settings[option] = bool(server_settings[option])
2400
2899
# Debug implies foreground
2401
2900
if server_settings["debug"]:
2404
2903
2405
2904
##################################################################
2406
2905
2906
if (not server_settings["zeroconf"]
2907
and not (server_settings["port"]
2908
or server_settings["socket"] != "")):
2909
parser.error("Needs port or socket to work without Zeroconf")
2910
2407
2911
# For convenience
2408
2912
debug = server_settings["debug"]
2409
2913
debuglevel = server_settings["debuglevel"]
2412
2916
stored_state_path = os.path.join(server_settings["statedir"],
2413
2917
stored_state_file)
2414
2918
foreground = server_settings["foreground"]
2919
zeroconf = server_settings["zeroconf"]
2415
2920
2416
2921
if debug:
2417
2922
initlogger(debug, logging.DEBUG)
2423
2928
initlogger(debug, level)
2424
2929
2425
2930
if server_settings["servicename"] != "Mandos":
2426
syslogger.setFormatter(logging.Formatter
2427
('Mandos ({0}) [%(process)d]:'
2428
' %(levelname)s: %(message)s'
2429
.format(server_settings
2430
["servicename"])))
2931
syslogger.setFormatter(
2932
logging.Formatter('Mandos ({}) [%(process)d]:'
2933
' %(levelname)s: %(message)s'.format(
2934
server_settings["servicename"])))
2431
2935
2432
2936
# Parse config file with clients
2433
2937
client_config = configparser.SafeConfigParser(Client
2438
2942
global mandos_dbus_service
2439
2943
mandos_dbus_service = None
2440
2944
2441
tcp_server = MandosServer((server_settings["address"],
2442
server_settings["port"]),
2443
ClientHandler,
2444
interface=(server_settings["interface"]
2445
or None),
2446
use_ipv6=use_ipv6,
2447
gnutls_priority=
2448
server_settings["priority"],
2449
use_dbus=use_dbus,
2450
socketfd=(server_settings["socket"]
2451
or None))
2945
socketfd = None
2946
if server_settings["socket"] != "":
2947
socketfd = server_settings["socket"]
2948
tcp_server = MandosServer(
2949
(server_settings["address"], server_settings["port"]),
2950
ClientHandler,
2951
interface=(server_settings["interface"] or None),
2952
use_ipv6=use_ipv6,
2953
gnutls_priority=server_settings["priority"],
2954
use_dbus=use_dbus,
2955
socketfd=socketfd)
2452
2956
if not foreground:
2453
2957
pidfilename = "/run/mandos.pid"
2958
if not os.path.isdir("/run/."):
2959
pidfilename = "/var/run/mandos.pid"
2454
2960
pidfile = None
2455
2961
try:
2456
pidfile = open(pidfilename, "w")
2962
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2457
2963
except IOError as e:
2458
2964
logger.error("Could not open file %r", pidfilename,
2459
2965
exc_info=e)
2460
2966
2461
for name in ("_mandos", "mandos", "nobody"):
2967
for name, group in (("_mandos", "_mandos"),
2968
("mandos", "mandos"),
2969
("nobody", "nogroup")):
2462
2970
try:
2463
2971
uid = pwd.getpwnam(name).pw_uid
2464
gid = pwd.getpwnam(name).pw_gid
2972
gid = pwd.getpwnam(group).pw_gid
2465
2973
break
2466
2974
except KeyError:
2467
2975
continue
2471
2979
try:
2472
2980
os.setgid(gid)
2473
2981
os.setuid(uid)
2982
if debug:
2983
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2984
gid))
2474
2985
except OSError as error:
2986
logger.warning("Failed to setuid/setgid to {}:{}: {}"
2987
.format(uid, gid, os.strerror(error.errno)))
2475
2988
if error.errno != errno.EPERM:
2476
raise error
2989
raise
2477
2990
2478
2991
if debug:
2479
2992
# Enable all possible GnuTLS debugging
2480
2993
2481
2994
# "Use a log level over 10 to enable all debugging options."
2482
2995
# - GnuTLS manual
2483
gnutls.library.functions.gnutls_global_set_log_level(11)
2996
gnutls.global_set_log_level(11)
2484
2997
2485
@gnutls.library.types.gnutls_log_func
2998
@gnutls.log_func
2486
2999
def debug_gnutls(level, string):
2487
3000
logger.debug("GnuTLS: %s", string[:-1])
2488
3001
2489
(gnutls.library.functions
2490
.gnutls_global_set_log_function(debug_gnutls))
3002
gnutls.global_set_log_function(debug_gnutls)
2491
3003
2492
3004
# Redirect stdin so all checkers get /dev/null
2493
3005
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2500
3012
# Close all input and output, do double fork, etc.
2501
3013
daemon()
2502
3014
2503
# multiprocessing will use threads, so before we use gobject we
2504
# need to inform gobject that threads will be used.
2505
gobject.threads_init()
3015
# multiprocessing will use threads, so before we use GLib we need
3016
# to inform GLib that threads will be used.
3017
GLib.threads_init()
2506
3018
2507
3019
global main_loop
2508
3020
# From the Avahi example code
2509
3021
DBusGMainLoop(set_as_default=True)
2510
main_loop = gobject.MainLoop()
3022
main_loop = GLib.MainLoop()
2511
3023
bus = dbus.SystemBus()
2512
3024
# End of Avahi example code
2513
3025
if use_dbus:
2514
3026
try:
2515
3027
bus_name = dbus.service.BusName("se.recompile.Mandos",
2516
bus, do_not_queue=True)
2517
old_bus_name = (dbus.service.BusName
2518
("se.bsnet.fukt.Mandos", bus,
2519
do_not_queue=True))
2520
except dbus.exceptions.NameExistsException as e:
3028
bus,
3029
do_not_queue=True)
3030
old_bus_name = dbus.service.BusName(
3031
"se.bsnet.fukt.Mandos", bus,
3032
do_not_queue=True)
3033
except dbus.exceptions.DBusException as e:
2521
3034
logger.error("Disabling D-Bus:", exc_info=e)
2522
3035
use_dbus = False
2523
3036
server_settings["use_dbus"] = False
2524
3037
tcp_server.use_dbus = False
2525
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2526
service = AvahiServiceToSyslog(name =
2527
server_settings["servicename"],
2528
servicetype = "_mandos._tcp",
2529
protocol = protocol, bus = bus)
2530
if server_settings["interface"]:
2531
service.interface = (if_nametoindex
2532
(str(server_settings["interface"])))
3038
if zeroconf:
3039
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3040
service = AvahiServiceToSyslog(
3041
name = server_settings["servicename"],
3042
servicetype = "_mandos._tcp",
3043
protocol = protocol,
3044
bus = bus)
3045
if server_settings["interface"]:
3046
service.interface = if_nametoindex(
3047
server_settings["interface"].encode("utf-8"))
2533
3048
2534
3049
global multiprocessing_manager
2535
3050
multiprocessing_manager = multiprocessing.Manager()
2554
3069
if server_settings["restore"]:
2555
3070
try:
2556
3071
with open(stored_state_path, "rb") as stored_state:
2557
clients_data, old_client_settings = (pickle.load
2558
(stored_state))
3072
if sys.version_info.major == 2:
3073
clients_data, old_client_settings = pickle.load(
3074
stored_state)
3075
else:
3076
bytes_clients_data, bytes_old_client_settings = (
3077
pickle.load(stored_state, encoding = "bytes"))
3078
### Fix bytes to strings
3079
## clients_data
3080
# .keys()
3081
clients_data = { (key.decode("utf-8")
3082
if isinstance(key, bytes)
3083
else key): value
3084
for key, value in
3085
bytes_clients_data.items() }
3086
del bytes_clients_data
3087
for key in clients_data:
3088
value = { (k.decode("utf-8")
3089
if isinstance(k, bytes) else k): v
3090
for k, v in
3091
clients_data[key].items() }
3092
clients_data[key] = value
3093
# .client_structure
3094
value["client_structure"] = [
3095
(s.decode("utf-8")
3096
if isinstance(s, bytes)
3097
else s) for s in
3098
value["client_structure"] ]
3099
# .name & .host
3100
for k in ("name", "host"):
3101
if isinstance(value[k], bytes):
3102
value[k] = value[k].decode("utf-8")
3103
## old_client_settings
3104
# .keys()
3105
old_client_settings = {
3106
(key.decode("utf-8")
3107
if isinstance(key, bytes)
3108
else key): value
3109
for key, value in
3110
bytes_old_client_settings.items() }
3111
del bytes_old_client_settings
3112
# .host
3113
for value in old_client_settings.values():
3114
if isinstance(value["host"], bytes):
3115
value["host"] = (value["host"]
3116
.decode("utf-8"))
2559
3117
os.remove(stored_state_path)
2560
3118
except IOError as e:
2561
3119
if e.errno == errno.ENOENT:
2562
logger.warning("Could not load persistent state: {0}"
2563
.format(os.strerror(e.errno)))
3120
logger.warning("Could not load persistent state:"
3121
" {}".format(os.strerror(e.errno)))
2564
3122
else:
2565
3123
logger.critical("Could not load persistent state:",
2566
3124
exc_info=e)
2567
3125
raise
2568
3126
except EOFError as e:
2569
3127
logger.warning("Could not load persistent state: "
2570
"EOFError:", exc_info=e)
3128
"EOFError:",
3129
exc_info=e)
2571
3130
2572
3131
with PGPEngine() as pgp:
2573
for client_name, client in clients_data.iteritems():
3132
for client_name, client in clients_data.items():
2574
3133
# Skip removed clients
2575
3134
if client_name not in client_settings:
2576
3135
continue
2585
3144
# For each value in new config, check if it
2586
3145
# differs from the old config value (Except for
2587
3146
# the "secret" attribute)
2588
if (name != "secret" and
2589
value != old_client_settings[client_name]
2590
[name]):
3147
if (name != "secret"
3148
and (value !=
3149
old_client_settings[client_name][name])):
2591
3150
client[name] = value
2592
3151
except KeyError:
2593
3152
pass
2594
3153
2595
3154
# Clients who has passed its expire date can still be
2596
# enabled if its last checker was successful. Clients
3155
# enabled if its last checker was successful. A Client
2597
3156
# whose checker succeeded before we stored its state is
2598
3157
# assumed to have successfully run all checkers during
2599
3158
# downtime.
2601
3160
if datetime.datetime.utcnow() >= client["expires"]:
2602
3161
if not client["last_checked_ok"]:
2603
3162
logger.warning(
2604
"disabling client {0} - Client never "
2605
"performed a successful checker"
2606
.format(client_name))
3163
"disabling client {} - Client never "
3164
"performed a successful checker".format(
3165
client_name))
2607
3166
client["enabled"] = False
2608
3167
elif client["last_checker_status"] != 0:
2609
3168
logger.warning(
2610
"disabling client {0} - Client "
2611
"last checker failed with error code {1}"
2612
.format(client_name,
2613
client["last_checker_status"]))
3169
"disabling client {} - Client last"
3170
" checker failed with error code"
3171
" {}".format(
3172
client_name,
3173
client["last_checker_status"]))
2614
3174
client["enabled"] = False
2615
3175
else:
2616
client["expires"] = (datetime.datetime
2617
.utcnow()
2618
+ client["timeout"])
3176
client["expires"] = (
3177
datetime.datetime.utcnow()
3178
+ client["timeout"])
2619
3179
logger.debug("Last checker succeeded,"
2620
" keeping {0} enabled"
2621
.format(client_name))
3180
" keeping {} enabled".format(
3181
client_name))
2622
3182
try:
2623
client["secret"] = (
2624
pgp.decrypt(client["encrypted_secret"],
2625
client_settings[client_name]
2626
["secret"]))
3183
client["secret"] = pgp.decrypt(
3184
client["encrypted_secret"],
3185
client_settings[client_name]["secret"])
2627
3186
except PGPError:
2628
3187
# If decryption fails, we use secret from new settings
2629
logger.debug("Failed to decrypt {0} old secret"
2630
.format(client_name))
2631
client["secret"] = (
2632
client_settings[client_name]["secret"])
3188
logger.debug("Failed to decrypt {} old secret".format(
3189
client_name))
3190
client["secret"] = (client_settings[client_name]
3191
["secret"])
2633
3192
2634
3193
# Add/remove clients based on new changes made to config
2635
3194
for client_name in (set(old_client_settings)
2640
3199
clients_data[client_name] = client_settings[client_name]
2641
3200
2642
3201
# Create all client objects
2643
for client_name, client in clients_data.iteritems():
3202
for client_name, client in clients_data.items():
2644
3203
tcp_server.clients[client_name] = client_class(
2645
name = client_name, settings = client,
3204
name = client_name,
3205
settings = client,
2646
3206
server_settings = server_settings)
2647
3207
2648
3208
if not tcp_server.clients:
2650
3210
2651
3211
if not foreground:
2652
3212
if pidfile is not None:
3213
pid = os.getpid()
2653
3214
try:
2654
3215
with pidfile:
2655
pid = os.getpid()
2656
pidfile.write(str(pid) + "\n".encode("utf-8"))
3216
print(pid, file=pidfile)
2657
3217
except IOError:
2658
3218
logger.error("Could not write to file %r with PID %d",
2659
3219
pidfilename, pid)
2660
3220
del pidfile
2661
3221
del pidfilename
2662
3222
2663
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2664
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3223
for termsig in (signal.SIGHUP, signal.SIGTERM):
3224
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3225
lambda: main_loop.quit() and False)
2665
3226
2666
3227
if use_dbus:
2667
@alternate_dbus_interfaces({"se.recompile.Mandos":
2668
"se.bsnet.fukt.Mandos"})
2669
class MandosDBusService(DBusObjectWithProperties):
3228
3229
@alternate_dbus_interfaces(
3230
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3231
class MandosDBusService(DBusObjectWithObjectManager):
2670
3232
"""A D-Bus proxy object"""
3233
2671
3234
def __init__(self):
2672
3235
dbus.service.Object.__init__(self, bus, "/")
3236
2673
3237
_interface = "se.recompile.Mandos"
2674
3238
2675
@dbus_interface_annotations(_interface)
2676
def _foo(self):
2677
return { "org.freedesktop.DBus.Property"
2678
".EmitsChangedSignal":
2679
"false"}
2680
2681
3239
@dbus.service.signal(_interface, signature="o")
2682
3240
def ClientAdded(self, objpath):
2683
3241
"D-Bus signal"
2688
3246
"D-Bus signal"
2689
3247
pass
2690
3248
3249
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3250
"true"})
2691
3251
@dbus.service.signal(_interface, signature="os")
2692
3252
def ClientRemoved(self, objpath, name):
2693
3253
"D-Bus signal"
2694
3254
pass
2695
3255
3256
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3257
"true"})
2696
3258
@dbus.service.method(_interface, out_signature="ao")
2697
3259
def GetAllClients(self):
2698
3260
"D-Bus method"
2699
return dbus.Array(c.dbus_object_path
2700
for c in
2701
tcp_server.clients.itervalues())
3261
return dbus.Array(c.dbus_object_path for c in
3262
tcp_server.clients.values())
2702
3263
3264
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3265
"true"})
2703
3266
@dbus.service.method(_interface,
2704
3267
out_signature="a{oa{sv}}")
2705
3268
def GetAllClientsWithProperties(self):
2706
3269
"D-Bus method"
2707
3270
return dbus.Dictionary(
2708
((c.dbus_object_path, c.GetAll(""))
2709
for c in tcp_server.clients.itervalues()),
3271
{ c.dbus_object_path: c.GetAll(
3272
"se.recompile.Mandos.Client")
3273
for c in tcp_server.clients.values() },
2710
3274
signature="oa{sv}")
2711
3275
2712
3276
@dbus.service.method(_interface, in_signature="o")
2713
3277
def RemoveClient(self, object_path):
2714
3278
"D-Bus method"
2715
for c in tcp_server.clients.itervalues():
3279
for c in tcp_server.clients.values():
2716
3280
if c.dbus_object_path == object_path:
2717
3281
del tcp_server.clients[c.name]
2718
3282
c.remove_from_connection()
2719
# Don't signal anything except ClientRemoved
3283
# Don't signal the disabling
2720
3284
c.disable(quiet=True)
2721
# Emit D-Bus signal
2722
self.ClientRemoved(object_path, c.name)
3285
# Emit D-Bus signal for removal
3286
self.client_removed_signal(c)
2723
3287
return
2724
3288
raise KeyError(object_path)
2725
3289
2726
3290
del _interface
3291
3292
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3293
out_signature = "a{oa{sa{sv}}}")
3294
def GetManagedObjects(self):
3295
"""D-Bus method"""
3296
return dbus.Dictionary(
3297
{ client.dbus_object_path:
3298
dbus.Dictionary(
3299
{ interface: client.GetAll(interface)
3300
for interface in
3301
client._get_all_interface_names()})
3302
for client in tcp_server.clients.values()})
3303
3304
def client_added_signal(self, client):
3305
"""Send the new standard signal and the old signal"""
3306
if use_dbus:
3307
# New standard signal
3308
self.InterfacesAdded(
3309
client.dbus_object_path,
3310
dbus.Dictionary(
3311
{ interface: client.GetAll(interface)
3312
for interface in
3313
client._get_all_interface_names()}))
3314
# Old signal
3315
self.ClientAdded(client.dbus_object_path)
3316
3317
def client_removed_signal(self, client):
3318
"""Send the new standard signal and the old signal"""
3319
if use_dbus:
3320
# New standard signal
3321
self.InterfacesRemoved(
3322
client.dbus_object_path,
3323
client._get_all_interface_names())
3324
# Old signal
3325
self.ClientRemoved(client.dbus_object_path,
3326
client.name)
2727
3327
2728
3328
mandos_dbus_service = MandosDBusService()
2729
3329
3330
# Save modules to variables to exempt the modules from being
3331
# unloaded before the function registered with atexit() is run.
3332
mp = multiprocessing
3333
wn = wnull
2730
3334
def cleanup():
2731
3335
"Cleanup function; run on exit"
2732
service.cleanup()
3336
if zeroconf:
3337
service.cleanup()
2733
3338
2734
multiprocessing.active_children()
2735
wnull.close()
3339
mp.active_children()
3340
wn.close()
2736
3341
if not (tcp_server.clients or client_settings):
2737
3342
return
2738
3343
2741
3346
# removed/edited, old secret will thus be unrecovable.
2742
3347
clients = {}
2743
3348
with PGPEngine() as pgp:
2744
for client in tcp_server.clients.itervalues():
3349
for client in tcp_server.clients.values():
2745
3350
key = client_settings[client.name]["secret"]
2746
3351
client.encrypted_secret = pgp.encrypt(client.secret,
2747
3352
key)
2749
3354
2750
3355
# A list of attributes that can not be pickled
2751
3356
# + secret.
2752
exclude = set(("bus", "changedstate", "secret",
2753
"checker", "server_settings"))
2754
for name, typ in (inspect.getmembers
2755
(dbus.service.Object)):
3357
exclude = { "bus", "changedstate", "secret",
3358
"checker", "server_settings" }
3359
for name, typ in inspect.getmembers(dbus.service
3360
.Object):
2756
3361
exclude.add(name)
2757
3362
2758
3363
client_dict["encrypted_secret"] = (client
2765
3370
del client_settings[client.name]["secret"]
2766
3371
2767
3372
try:
2768
with (tempfile.NamedTemporaryFile
2769
(mode='wb', suffix=".pickle", prefix='clients-',
2770
dir=os.path.dirname(stored_state_path),
2771
delete=False)) as stored_state:
2772
pickle.dump((clients, client_settings), stored_state)
2773
tempname=stored_state.name
3373
with tempfile.NamedTemporaryFile(
3374
mode='wb',
3375
suffix=".pickle",
3376
prefix='clients-',
3377
dir=os.path.dirname(stored_state_path),
3378
delete=False) as stored_state:
3379
pickle.dump((clients, client_settings), stored_state,
3380
protocol = 2)
3381
tempname = stored_state.name
2774
3382
os.rename(tempname, stored_state_path)
2775
3383
except (IOError, OSError) as e:
2776
3384
if not debug:
2779
3387
except NameError:
2780
3388
pass
2781
3389
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2782
logger.warning("Could not save persistent state: {0}"
3390
logger.warning("Could not save persistent state: {}"
2783
3391
.format(os.strerror(e.errno)))
2784
3392
else:
2785
3393
logger.warning("Could not save persistent state:",
2786
3394
exc_info=e)
2787
raise e
3395
raise
2788
3396
2789
3397
# Delete all clients, and settings from config
2790
3398
while tcp_server.clients:
2791
3399
name, client = tcp_server.clients.popitem()
2792
3400
if use_dbus:
2793
3401
client.remove_from_connection()
2794
# Don't signal anything except ClientRemoved
3402
# Don't signal the disabling
2795
3403
client.disable(quiet=True)
3404
# Emit D-Bus signal for removal
2796
3405
if use_dbus:
2797
# Emit D-Bus signal
2798
mandos_dbus_service.ClientRemoved(client
2799
.dbus_object_path,
2800
client.name)
3406
mandos_dbus_service.client_removed_signal(client)
2801
3407
client_settings.clear()
2802
3408
2803
3409
atexit.register(cleanup)
2804
3410
2805
for client in tcp_server.clients.itervalues():
3411
for client in tcp_server.clients.values():
2806
3412
if use_dbus:
2807
# Emit D-Bus signal
2808
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3413
# Emit D-Bus signal for adding
3414
mandos_dbus_service.client_added_signal(client)
2809
3415
# Need to initiate checking of clients
2810
3416
if client.enabled:
2811
3417
client.init_checker()
2814
3420
tcp_server.server_activate()
2815
3421
2816
3422
# Find out what port we got
2817
service.port = tcp_server.socket.getsockname()[1]
3423
if zeroconf:
3424
service.port = tcp_server.socket.getsockname()[1]
2818
3425
if use_ipv6:
2819
3426
logger.info("Now listening on address %r, port %d,"
2820
3427
" flowinfo %d, scope_id %d",
2826
3433
#service.interface = tcp_server.socket.getsockname()[3]
2827
3434
2828
3435
try:
2829
# From the Avahi example code
2830
try:
2831
service.activate()
2832
except dbus.exceptions.DBusException as error:
2833
logger.critical("D-Bus Exception", exc_info=error)
2834
cleanup()
2835
sys.exit(1)
2836
# End of Avahi example code
3436
if zeroconf:
3437
# From the Avahi example code
3438
try:
3439
service.activate()
3440
except dbus.exceptions.DBusException as error:
3441
logger.critical("D-Bus Exception", exc_info=error)
3442
cleanup()
3443
sys.exit(1)
3444
# End of Avahi example code
2837
3445
2838
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2839
lambda *args, **kwargs:
2840
(tcp_server.handle_request
2841
(*args[2:], **kwargs) or True))
3446
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3447
lambda *args, **kwargs:
3448
(tcp_server.handle_request
3449
(*args[2:], **kwargs) or True))
2842
3450
2843
3451
logger.debug("Starting main loop")
2844
3452
main_loop.run()
2854
3462
# Must run before the D-Bus bus name gets deregistered
2855
3463
cleanup()
2856
3464
3465
2857
3466
if __name__ == '__main__':
2858
3467
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0