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- Committer: Teddy Hogeborn
- Date: 2015-05-31 15:29:22 UTC
- Revision ID: teddy@recompile.se-20150531152922-o1xv6qr3hbj1twm0
mandos: Use codecs.open() and print() for PID file.
Use more Pythonic code, closer to the Python 3 style.
Use more Pythonic code, closer to the Python 3 style.
added
removed
mandos
1
#!/usr/bin/python
1
#!/usr/bin/python2.7
2
2
# -*- mode: python; coding: utf-8 -*-
3
#
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2016 Teddy Hogeborn
15
# Copyright © 2008-2016 Björn Påhlsson
16
#
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
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
19
19
# the Free Software Foundation, either version 3 of the License, or
23
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
25
# GNU General Public License for more details.
26
#
26
#
27
27
# You should have received a copy of the GNU General Public License
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
#
30
#
31
31
# Contact the authors at <mandos@recompile.se>.
32
#
32
#
33
33
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
try:
38
from future_builtins import *
39
except ImportError:
40
pass
37
from future_builtins import *
41
38
42
39
try:
43
40
import SocketServer as socketserver
47
44
import argparse
48
45
import datetime
49
46
import errno
47
import gnutls.crypto
48
import gnutls.connection
49
import gnutls.errors
50
import gnutls.library.functions
51
import gnutls.library.constants
52
import gnutls.library.types
50
53
try:
51
54
import ConfigParser as configparser
52
55
except ImportError:
79
82
80
83
import dbus
81
84
import dbus.service
82
from gi.repository import GLib
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
89
import avahi
83
90
from dbus.mainloop.glib import DBusGMainLoop
84
91
import ctypes
85
92
import ctypes.util
86
93
import xml.dom.minidom
87
94
import inspect
88
95
89
# Try to find the value of SO_BINDTODEVICE:
90
96
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:
93
97
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
94
98
except AttributeError:
95
99
try:
96
# This is where SO_BINDTODEVICE was up to and including Python
97
# 2.6, and also 3.2:
98
100
from IN import SO_BINDTODEVICE
99
101
except ImportError:
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
102
SO_BINDTODEVICE = None
113
103
114
104
if sys.version_info.major == 2:
115
105
str = unicode
116
106
117
version = "1.7.10"
107
version = "1.6.9"
118
108
stored_state_file = "clients.pickle"
119
109
120
110
logger = logging.getLogger()
124
114
if_nametoindex = ctypes.cdll.LoadLibrary(
125
115
ctypes.util.find_library("c")).if_nametoindex
126
116
except (OSError, AttributeError):
127
117
128
118
def if_nametoindex(interface):
129
119
"Get an interface index the hard way, i.e. using fcntl()"
130
120
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
135
125
return interface_index
136
126
137
127
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
154
128
def initlogger(debug, level=logging.WARNING):
155
129
"""init logger and add loglevel"""
156
130
157
131
global syslogger
158
132
syslogger = (logging.handlers.SysLogHandler(
159
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
160
address="/dev/log"))
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
161
135
syslogger.setFormatter(logging.Formatter
162
136
('Mandos [%(process)d]: %(levelname)s:'
163
137
' %(message)s'))
164
138
logger.addHandler(syslogger)
165
139
166
140
if debug:
167
141
console = logging.StreamHandler()
168
142
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
180
154
181
155
class PGPEngine(object):
182
156
"""A simple class for OpenPGP symmetric encryption & decryption"""
183
157
184
158
def __init__(self):
185
159
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
197
160
self.gnupgargs = ['--batch',
198
'--homedir', self.tempdir,
161
'--home', self.tempdir,
199
162
'--force-mdc',
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")
204
163
'--quiet',
164
'--no-use-agent']
165
205
166
def __enter__(self):
206
167
return self
207
168
208
169
def __exit__(self, exc_type, exc_value, traceback):
209
170
self._cleanup()
210
171
return False
211
172
212
173
def __del__(self):
213
174
self._cleanup()
214
175
215
176
def _cleanup(self):
216
177
if self.tempdir is not None:
217
178
# Delete contents of tempdir
218
179
for root, dirs, files in os.walk(self.tempdir,
219
topdown=False):
180
topdown = False):
220
181
for filename in files:
221
182
os.remove(os.path.join(root, filename))
222
183
for dirname in dirs:
224
185
# Remove tempdir
225
186
os.rmdir(self.tempdir)
226
187
self.tempdir = None
227
188
228
189
def password_encode(self, password):
229
190
# Passphrase can not be empty and can not contain newlines or
230
191
# NUL bytes. So we prefix it and hex encode it.
235
196
.replace(b"\n", b"\\n")
236
197
.replace(b"\0", b"\\x00"))
237
198
return encoded
238
199
239
200
def encrypt(self, data, password):
240
201
passphrase = self.password_encode(password)
241
202
with tempfile.NamedTemporaryFile(
242
203
dir=self.tempdir) as passfile:
243
204
passfile.write(passphrase)
244
205
passfile.flush()
245
proc = subprocess.Popen([self.gpg, '--symmetric',
206
proc = subprocess.Popen(['gpg', '--symmetric',
246
207
'--passphrase-file',
247
208
passfile.name]
248
209
+ self.gnupgargs,
249
stdin=subprocess.PIPE,
250
stdout=subprocess.PIPE,
251
stderr=subprocess.PIPE)
252
ciphertext, err = proc.communicate(input=data)
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
253
214
if proc.returncode != 0:
254
215
raise PGPError(err)
255
216
return ciphertext
256
217
257
218
def decrypt(self, data, password):
258
219
passphrase = self.password_encode(password)
259
220
with tempfile.NamedTemporaryFile(
260
dir=self.tempdir) as passfile:
221
dir = self.tempdir) as passfile:
261
222
passfile.write(passphrase)
262
223
passfile.flush()
263
proc = subprocess.Popen([self.gpg, '--decrypt',
224
proc = subprocess.Popen(['gpg', '--decrypt',
264
225
'--passphrase-file',
265
226
passfile.name]
266
227
+ self.gnupgargs,
267
stdin=subprocess.PIPE,
268
stdout=subprocess.PIPE,
269
stderr=subprocess.PIPE)
270
decrypted_plaintext, err = proc.communicate(input=data)
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
271
232
if proc.returncode != 0:
272
233
raise PGPError(err)
273
234
return decrypted_plaintext
274
235
275
236
276
# Pretend that we have an Avahi module
277
class Avahi(object):
278
"""This isn't so much a class as it is a module-like namespace.
279
It is instantiated once, and simulates having an Avahi module."""
280
IF_UNSPEC = -1 # avahi-common/address.h
281
PROTO_UNSPEC = -1 # avahi-common/address.h
282
PROTO_INET = 0 # avahi-common/address.h
283
PROTO_INET6 = 1 # avahi-common/address.h
284
DBUS_NAME = "org.freedesktop.Avahi"
285
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
286
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
287
DBUS_PATH_SERVER = "/"
288
289
def string_array_to_txt_array(self, t):
290
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
291
for s in t), signature="ay")
292
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
293
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
294
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
295
SERVER_INVALID = 0 # avahi-common/defs.h
296
SERVER_REGISTERING = 1 # avahi-common/defs.h
297
SERVER_RUNNING = 2 # avahi-common/defs.h
298
SERVER_COLLISION = 3 # avahi-common/defs.h
299
SERVER_FAILURE = 4 # avahi-common/defs.h
300
avahi = Avahi()
301
302
303
237
class AvahiError(Exception):
304
238
def __init__(self, value, *args, **kwargs):
305
239
self.value = value
317
251
318
252
class AvahiService(object):
319
253
"""An Avahi (Zeroconf) service.
320
254
321
255
Attributes:
322
256
interface: integer; avahi.IF_UNSPEC or an interface index.
323
257
Used to optionally bind to the specified interface.
335
269
server: D-Bus Server
336
270
bus: dbus.SystemBus()
337
271
"""
338
272
339
273
def __init__(self,
340
interface=avahi.IF_UNSPEC,
341
name=None,
342
servicetype=None,
343
port=None,
344
TXT=None,
345
domain="",
346
host="",
347
max_renames=32768,
348
protocol=avahi.PROTO_UNSPEC,
349
bus=None):
274
interface = avahi.IF_UNSPEC,
275
name = None,
276
servicetype = None,
277
port = None,
278
TXT = None,
279
domain = "",
280
host = "",
281
max_renames = 32768,
282
protocol = avahi.PROTO_UNSPEC,
283
bus = None):
350
284
self.interface = interface
351
285
self.name = name
352
286
self.type = servicetype
361
295
self.server = None
362
296
self.bus = bus
363
297
self.entry_group_state_changed_match = None
364
298
365
299
def rename(self, remove=True):
366
300
"""Derived from the Avahi example code"""
367
301
if self.rename_count >= self.max_renames:
387
321
logger.critical("D-Bus Exception", exc_info=error)
388
322
self.cleanup()
389
323
os._exit(1)
390
324
391
325
def remove(self):
392
326
"""Derived from the Avahi example code"""
393
327
if self.entry_group_state_changed_match is not None:
395
329
self.entry_group_state_changed_match = None
396
330
if self.group is not None:
397
331
self.group.Reset()
398
332
399
333
def add(self):
400
334
"""Derived from the Avahi example code"""
401
335
self.remove()
418
352
dbus.UInt16(self.port),
419
353
avahi.string_array_to_txt_array(self.TXT))
420
354
self.group.Commit()
421
355
422
356
def entry_group_state_changed(self, state, error):
423
357
"""Derived from the Avahi example code"""
424
358
logger.debug("Avahi entry group state change: %i", state)
425
359
426
360
if state == avahi.ENTRY_GROUP_ESTABLISHED:
427
361
logger.debug("Zeroconf service established.")
428
362
elif state == avahi.ENTRY_GROUP_COLLISION:
432
366
logger.critical("Avahi: Error in group state changed %s",
433
367
str(error))
434
368
raise AvahiGroupError("State changed: {!s}".format(error))
435
369
436
370
def cleanup(self):
437
371
"""Derived from the Avahi example code"""
438
372
if self.group is not None:
443
377
pass
444
378
self.group = None
445
379
self.remove()
446
380
447
381
def server_state_changed(self, state, error=None):
448
382
"""Derived from the Avahi example code"""
449
383
logger.debug("Avahi server state change: %i", state)
461
395
logger.error(bad_states[state] + ": %r", error)
462
396
self.cleanup()
463
397
elif state == avahi.SERVER_RUNNING:
464
try:
465
self.add()
466
except dbus.exceptions.DBusException as error:
467
if (error.get_dbus_name()
468
== "org.freedesktop.Avahi.CollisionError"):
469
logger.info("Local Zeroconf service name"
470
" collision.")
471
return self.rename(remove=False)
472
else:
473
logger.critical("D-Bus Exception", exc_info=error)
474
self.cleanup()
475
os._exit(1)
398
self.add()
476
399
else:
477
400
if error is None:
478
401
logger.debug("Unknown state: %r", state)
479
402
else:
480
403
logger.debug("Unknown state: %r: %r", state, error)
481
404
482
405
def activate(self):
483
406
"""Derived from the Avahi example code"""
484
407
if self.server is None:
502
425
return ret
503
426
504
427
505
# Pretend that we have a GnuTLS module
506
class GnuTLS(object):
507
"""This isn't so much a class as it is a module-like namespace.
508
It is instantiated once, and simulates having a GnuTLS module."""
509
510
library = ctypes.util.find_library("gnutls")
511
if library is None:
512
library = ctypes.util.find_library("gnutls-deb0")
513
_library = ctypes.cdll.LoadLibrary(library)
514
del library
515
_need_version = b"3.3.0"
516
517
def __init__(self):
518
# Need to use class name "GnuTLS" here, since this method is
519
# called before the assignment to the "gnutls" global variable
520
# happens.
521
if GnuTLS.check_version(self._need_version) is None:
522
raise GnuTLS.Error("Needs GnuTLS {} or later"
523
.format(self._need_version))
524
525
# Unless otherwise indicated, the constants and types below are
526
# all from the gnutls/gnutls.h C header file.
527
528
# Constants
529
E_SUCCESS = 0
530
E_INTERRUPTED = -52
531
E_AGAIN = -28
532
CRT_OPENPGP = 2
533
CLIENT = 2
534
SHUT_RDWR = 0
535
CRD_CERTIFICATE = 1
536
E_NO_CERTIFICATE_FOUND = -49
537
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
538
539
# Types
540
class session_int(ctypes.Structure):
541
_fields_ = []
542
session_t = ctypes.POINTER(session_int)
543
544
class certificate_credentials_st(ctypes.Structure):
545
_fields_ = []
546
certificate_credentials_t = ctypes.POINTER(
547
certificate_credentials_st)
548
certificate_type_t = ctypes.c_int
549
550
class datum_t(ctypes.Structure):
551
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
552
('size', ctypes.c_uint)]
553
554
class openpgp_crt_int(ctypes.Structure):
555
_fields_ = []
556
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
557
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
558
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
559
credentials_type_t = ctypes.c_int
560
transport_ptr_t = ctypes.c_void_p
561
close_request_t = ctypes.c_int
562
563
# Exceptions
564
class Error(Exception):
565
# We need to use the class name "GnuTLS" here, since this
566
# exception might be raised from within GnuTLS.__init__,
567
# which is called before the assignment to the "gnutls"
568
# global variable has happened.
569
def __init__(self, message=None, code=None, args=()):
570
# Default usage is by a message string, but if a return
571
# code is passed, convert it to a string with
572
# gnutls.strerror()
573
self.code = code
574
if message is None and code is not None:
575
message = GnuTLS.strerror(code)
576
return super(GnuTLS.Error, self).__init__(
577
message, *args)
578
579
class CertificateSecurityError(Error):
580
pass
581
582
# Classes
583
class Credentials(object):
584
def __init__(self):
585
self._c_object = gnutls.certificate_credentials_t()
586
gnutls.certificate_allocate_credentials(
587
ctypes.byref(self._c_object))
588
self.type = gnutls.CRD_CERTIFICATE
589
590
def __del__(self):
591
gnutls.certificate_free_credentials(self._c_object)
592
593
class ClientSession(object):
594
def __init__(self, socket, credentials=None):
595
self._c_object = gnutls.session_t()
596
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
597
gnutls.set_default_priority(self._c_object)
598
gnutls.transport_set_ptr(self._c_object, socket.fileno())
599
gnutls.handshake_set_private_extensions(self._c_object,
600
True)
601
self.socket = socket
602
if credentials is None:
603
credentials = gnutls.Credentials()
604
gnutls.credentials_set(self._c_object, credentials.type,
605
ctypes.cast(credentials._c_object,
606
ctypes.c_void_p))
607
self.credentials = credentials
608
609
def __del__(self):
610
gnutls.deinit(self._c_object)
611
612
def handshake(self):
613
return gnutls.handshake(self._c_object)
614
615
def send(self, data):
616
data = bytes(data)
617
data_len = len(data)
618
while data_len > 0:
619
data_len -= gnutls.record_send(self._c_object,
620
data[-data_len:],
621
data_len)
622
623
def bye(self):
624
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
625
626
# Error handling functions
627
def _error_code(result):
628
"""A function to raise exceptions on errors, suitable
629
for the 'restype' attribute on ctypes functions"""
630
if result >= 0:
631
return result
632
if result == gnutls.E_NO_CERTIFICATE_FOUND:
633
raise gnutls.CertificateSecurityError(code=result)
634
raise gnutls.Error(code=result)
635
636
def _retry_on_error(result, func, arguments):
637
"""A function to retry on some errors, suitable
638
for the 'errcheck' attribute on ctypes functions"""
639
while result < 0:
640
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
641
return _error_code(result)
642
result = func(*arguments)
643
return result
644
645
# Unless otherwise indicated, the function declarations below are
646
# all from the gnutls/gnutls.h C header file.
647
648
# Functions
649
priority_set_direct = _library.gnutls_priority_set_direct
650
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
651
ctypes.POINTER(ctypes.c_char_p)]
652
priority_set_direct.restype = _error_code
653
654
init = _library.gnutls_init
655
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
656
init.restype = _error_code
657
658
set_default_priority = _library.gnutls_set_default_priority
659
set_default_priority.argtypes = [session_t]
660
set_default_priority.restype = _error_code
661
662
record_send = _library.gnutls_record_send
663
record_send.argtypes = [session_t, ctypes.c_void_p,
664
ctypes.c_size_t]
665
record_send.restype = ctypes.c_ssize_t
666
record_send.errcheck = _retry_on_error
667
668
certificate_allocate_credentials = (
669
_library.gnutls_certificate_allocate_credentials)
670
certificate_allocate_credentials.argtypes = [
671
ctypes.POINTER(certificate_credentials_t)]
672
certificate_allocate_credentials.restype = _error_code
673
674
certificate_free_credentials = (
675
_library.gnutls_certificate_free_credentials)
676
certificate_free_credentials.argtypes = [
677
certificate_credentials_t]
678
certificate_free_credentials.restype = None
679
680
handshake_set_private_extensions = (
681
_library.gnutls_handshake_set_private_extensions)
682
handshake_set_private_extensions.argtypes = [session_t,
683
ctypes.c_int]
684
handshake_set_private_extensions.restype = None
685
686
credentials_set = _library.gnutls_credentials_set
687
credentials_set.argtypes = [session_t, credentials_type_t,
688
ctypes.c_void_p]
689
credentials_set.restype = _error_code
690
691
strerror = _library.gnutls_strerror
692
strerror.argtypes = [ctypes.c_int]
693
strerror.restype = ctypes.c_char_p
694
695
certificate_type_get = _library.gnutls_certificate_type_get
696
certificate_type_get.argtypes = [session_t]
697
certificate_type_get.restype = _error_code
698
699
certificate_get_peers = _library.gnutls_certificate_get_peers
700
certificate_get_peers.argtypes = [session_t,
701
ctypes.POINTER(ctypes.c_uint)]
702
certificate_get_peers.restype = ctypes.POINTER(datum_t)
703
704
global_set_log_level = _library.gnutls_global_set_log_level
705
global_set_log_level.argtypes = [ctypes.c_int]
706
global_set_log_level.restype = None
707
708
global_set_log_function = _library.gnutls_global_set_log_function
709
global_set_log_function.argtypes = [log_func]
710
global_set_log_function.restype = None
711
712
deinit = _library.gnutls_deinit
713
deinit.argtypes = [session_t]
714
deinit.restype = None
715
716
handshake = _library.gnutls_handshake
717
handshake.argtypes = [session_t]
718
handshake.restype = _error_code
719
handshake.errcheck = _retry_on_error
720
721
transport_set_ptr = _library.gnutls_transport_set_ptr
722
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
723
transport_set_ptr.restype = None
724
725
bye = _library.gnutls_bye
726
bye.argtypes = [session_t, close_request_t]
727
bye.restype = _error_code
728
bye.errcheck = _retry_on_error
729
730
check_version = _library.gnutls_check_version
731
check_version.argtypes = [ctypes.c_char_p]
732
check_version.restype = ctypes.c_char_p
733
734
# All the function declarations below are from gnutls/openpgp.h
735
736
openpgp_crt_init = _library.gnutls_openpgp_crt_init
737
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
738
openpgp_crt_init.restype = _error_code
739
740
openpgp_crt_import = _library.gnutls_openpgp_crt_import
741
openpgp_crt_import.argtypes = [openpgp_crt_t,
742
ctypes.POINTER(datum_t),
743
openpgp_crt_fmt_t]
744
openpgp_crt_import.restype = _error_code
745
746
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
747
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
748
ctypes.POINTER(ctypes.c_uint)]
749
openpgp_crt_verify_self.restype = _error_code
750
751
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
752
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
753
openpgp_crt_deinit.restype = None
754
755
openpgp_crt_get_fingerprint = (
756
_library.gnutls_openpgp_crt_get_fingerprint)
757
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
758
ctypes.c_void_p,
759
ctypes.POINTER(
760
ctypes.c_size_t)]
761
openpgp_crt_get_fingerprint.restype = _error_code
762
763
# Remove non-public functions
764
del _error_code, _retry_on_error
765
# Create the global "gnutls" object, simulating a module
766
gnutls = GnuTLS()
767
768
769
def call_pipe(connection, # : multiprocessing.Connection
770
func, *args, **kwargs):
771
"""This function is meant to be called by multiprocessing.Process
772
773
This function runs func(*args, **kwargs), and writes the resulting
774
return value on the provided multiprocessing.Connection.
775
"""
776
connection.send(func(*args, **kwargs))
777
connection.close()
778
779
780
428
class Client(object):
781
429
"""A representation of a client host served by this server.
782
430
783
431
Attributes:
784
432
approved: bool(); 'None' if not yet approved/disapproved
785
433
approval_delay: datetime.timedelta(); Time to wait for approval
787
435
checker: subprocess.Popen(); a running checker process used
788
436
to see if the client lives.
789
437
'None' if no process is running.
790
checker_callback_tag: a GLib event source tag, or None
438
checker_callback_tag: a gobject event source tag, or None
791
439
checker_command: string; External command which is run to check
792
440
if client lives. %() expansions are done at
793
441
runtime with vars(self) as dict, so that for
794
442
instance %(name)s can be used in the command.
795
checker_initiator_tag: a GLib event source tag, or None
443
checker_initiator_tag: a gobject event source tag, or None
796
444
created: datetime.datetime(); (UTC) object creation
797
445
client_structure: Object describing what attributes a client has
798
446
and is used for storing the client at exit
799
447
current_checker_command: string; current running checker_command
800
disable_initiator_tag: a GLib event source tag, or None
448
disable_initiator_tag: a gobject event source tag, or None
801
449
enabled: bool()
802
450
fingerprint: string (40 or 32 hexadecimal digits); used to
803
451
uniquely identify the client
808
456
last_checker_status: integer between 0 and 255 reflecting exit
809
457
status of last checker. -1 reflects crashed
810
458
checker, -2 means no checker completed yet.
811
last_checker_signal: The signal which killed the last checker, if
812
last_checker_status is -1
813
459
last_enabled: datetime.datetime(); (UTC) or None
814
460
name: string; from the config file, used in log messages and
815
461
D-Bus identifiers
822
468
disabled, or None
823
469
server_settings: The server_settings dict from main()
824
470
"""
825
471
826
472
runtime_expansions = ("approval_delay", "approval_duration",
827
473
"created", "enabled", "expires",
828
474
"fingerprint", "host", "interval",
839
485
"approved_by_default": "True",
840
486
"enabled": "True",
841
487
}
842
488
843
489
@staticmethod
844
490
def config_parser(config):
845
491
"""Construct a new dict of client settings of this form:
852
498
for client_name in config.sections():
853
499
section = dict(config.items(client_name))
854
500
client = settings[client_name] = {}
855
501
856
502
client["host"] = section["host"]
857
503
# Reformat values from string types to Python types
858
504
client["approved_by_default"] = config.getboolean(
859
505
client_name, "approved_by_default")
860
506
client["enabled"] = config.getboolean(client_name,
861
507
"enabled")
862
508
863
509
# Uppercase and remove spaces from fingerprint for later
864
510
# comparison purposes with return value from the
865
511
# fingerprint() function
866
512
client["fingerprint"] = (section["fingerprint"].upper()
867
513
.replace(" ", ""))
868
514
if "secret" in section:
869
client["secret"] = codecs.decode(section["secret"]
870
.encode("utf-8"),
871
"base64")
515
client["secret"] = section["secret"].decode("base64")
872
516
elif "secfile" in section:
873
517
with open(os.path.expanduser(os.path.expandvars
874
518
(section["secfile"])),
889
533
client["last_approval_request"] = None
890
534
client["last_checked_ok"] = None
891
535
client["last_checker_status"] = -2
892
536
893
537
return settings
894
895
def __init__(self, settings, name=None, server_settings=None):
538
539
def __init__(self, settings, name = None, server_settings=None):
896
540
self.name = name
897
541
if server_settings is None:
898
542
server_settings = {}
900
544
# adding all client settings
901
545
for setting, value in settings.items():
902
546
setattr(self, setting, value)
903
547
904
548
if self.enabled:
905
549
if not hasattr(self, "last_enabled"):
906
550
self.last_enabled = datetime.datetime.utcnow()
910
554
else:
911
555
self.last_enabled = None
912
556
self.expires = None
913
557
914
558
logger.debug("Creating client %r", self.name)
915
559
logger.debug(" Fingerprint: %s", self.fingerprint)
916
560
self.created = settings.get("created",
917
561
datetime.datetime.utcnow())
918
562
919
563
# attributes specific for this server instance
920
564
self.checker = None
921
565
self.checker_initiator_tag = None
927
571
self.changedstate = multiprocessing_manager.Condition(
928
572
multiprocessing_manager.Lock())
929
573
self.client_structure = [attr
930
for attr in self.__dict__.keys()
574
for attr in self.__dict__.iterkeys()
931
575
if not attr.startswith("_")]
932
576
self.client_structure.append("client_structure")
933
577
934
578
for name, t in inspect.getmembers(
935
579
type(self), lambda obj: isinstance(obj, property)):
936
580
if not name.startswith("_"):
937
581
self.client_structure.append(name)
938
582
939
583
# Send notice to process children that client state has changed
940
584
def send_changedstate(self):
941
585
with self.changedstate:
942
586
self.changedstate.notify_all()
943
587
944
588
def enable(self):
945
589
"""Start this client's checker and timeout hooks"""
946
590
if getattr(self, "enabled", False):
951
595
self.last_enabled = datetime.datetime.utcnow()
952
596
self.init_checker()
953
597
self.send_changedstate()
954
598
955
599
def disable(self, quiet=True):
956
600
"""Disable this client."""
957
601
if not getattr(self, "enabled", False):
959
603
if not quiet:
960
604
logger.info("Disabling client %s", self.name)
961
605
if getattr(self, "disable_initiator_tag", None) is not None:
962
GLib.source_remove(self.disable_initiator_tag)
606
gobject.source_remove(self.disable_initiator_tag)
963
607
self.disable_initiator_tag = None
964
608
self.expires = None
965
609
if getattr(self, "checker_initiator_tag", None) is not None:
966
GLib.source_remove(self.checker_initiator_tag)
610
gobject.source_remove(self.checker_initiator_tag)
967
611
self.checker_initiator_tag = None
968
612
self.stop_checker()
969
613
self.enabled = False
970
614
if not quiet:
971
615
self.send_changedstate()
972
# Do not run this again if called by a GLib.timeout_add
616
# Do not run this again if called by a gobject.timeout_add
973
617
return False
974
618
975
619
def __del__(self):
976
620
self.disable()
977
621
978
622
def init_checker(self):
979
623
# Schedule a new checker to be started an 'interval' from now,
980
624
# and every interval from then on.
981
625
if self.checker_initiator_tag is not None:
982
GLib.source_remove(self.checker_initiator_tag)
983
self.checker_initiator_tag = GLib.timeout_add(
626
gobject.source_remove(self.checker_initiator_tag)
627
self.checker_initiator_tag = gobject.timeout_add(
984
628
int(self.interval.total_seconds() * 1000),
985
629
self.start_checker)
986
630
# Schedule a disable() when 'timeout' has passed
987
631
if self.disable_initiator_tag is not None:
988
GLib.source_remove(self.disable_initiator_tag)
989
self.disable_initiator_tag = GLib.timeout_add(
632
gobject.source_remove(self.disable_initiator_tag)
633
self.disable_initiator_tag = gobject.timeout_add(
990
634
int(self.timeout.total_seconds() * 1000), self.disable)
991
635
# Also start a new checker *right now*.
992
636
self.start_checker()
993
994
def checker_callback(self, source, condition, connection,
995
command):
637
638
def checker_callback(self, pid, condition, command):
996
639
"""The checker has completed, so take appropriate actions."""
997
640
self.checker_callback_tag = None
998
641
self.checker = None
999
# Read return code from connection (see call_pipe)
1000
returncode = connection.recv()
1001
connection.close()
1002
1003
if returncode >= 0:
1004
self.last_checker_status = returncode
1005
self.last_checker_signal = None
642
if os.WIFEXITED(condition):
643
self.last_checker_status = os.WEXITSTATUS(condition)
1006
644
if self.last_checker_status == 0:
1007
645
logger.info("Checker for %(name)s succeeded",
1008
646
vars(self))
1011
649
logger.info("Checker for %(name)s failed", vars(self))
1012
650
else:
1013
651
self.last_checker_status = -1
1014
self.last_checker_signal = -returncode
1015
652
logger.warning("Checker for %(name)s crashed?",
1016
653
vars(self))
1017
return False
1018
654
1019
655
def checked_ok(self):
1020
656
"""Assert that the client has been seen, alive and well."""
1021
657
self.last_checked_ok = datetime.datetime.utcnow()
1022
658
self.last_checker_status = 0
1023
self.last_checker_signal = None
1024
659
self.bump_timeout()
1025
660
1026
661
def bump_timeout(self, timeout=None):
1027
662
"""Bump up the timeout for this client."""
1028
663
if timeout is None:
1029
664
timeout = self.timeout
1030
665
if self.disable_initiator_tag is not None:
1031
GLib.source_remove(self.disable_initiator_tag)
666
gobject.source_remove(self.disable_initiator_tag)
1032
667
self.disable_initiator_tag = None
1033
668
if getattr(self, "enabled", False):
1034
self.disable_initiator_tag = GLib.timeout_add(
669
self.disable_initiator_tag = gobject.timeout_add(
1035
670
int(timeout.total_seconds() * 1000), self.disable)
1036
671
self.expires = datetime.datetime.utcnow() + timeout
1037
672
1038
673
def need_approval(self):
1039
674
self.last_approval_request = datetime.datetime.utcnow()
1040
675
1041
676
def start_checker(self):
1042
677
"""Start a new checker subprocess if one is not running.
1043
678
1044
679
If a checker already exists, leave it running and do
1045
680
nothing."""
1046
681
# The reason for not killing a running checker is that if we
1051
686
# checkers alone, the checker would have to take more time
1052
687
# than 'timeout' for the client to be disabled, which is as it
1053
688
# should be.
1054
1055
if self.checker is not None and not self.checker.is_alive():
1056
logger.warning("Checker was not alive; joining")
1057
self.checker.join()
1058
self.checker = None
689
690
# If a checker exists, make sure it is not a zombie
691
try:
692
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
693
except AttributeError:
694
pass
695
except OSError as error:
696
if error.errno != errno.ECHILD:
697
raise
698
else:
699
if pid:
700
logger.warning("Checker was a zombie")
701
gobject.source_remove(self.checker_callback_tag)
702
self.checker_callback(pid, status,
703
self.current_checker_command)
1059
704
# Start a new checker if needed
1060
705
if self.checker is None:
1061
706
# Escape attributes for the shell
1062
707
escaped_attrs = {
1063
708
attr: re.escape(str(getattr(self, attr)))
1064
for attr in self.runtime_expansions}
709
for attr in self.runtime_expansions }
1065
710
try:
1066
711
command = self.checker_command % escaped_attrs
1067
712
except TypeError as error:
1070
715
exc_info=error)
1071
716
return True # Try again later
1072
717
self.current_checker_command = command
1073
logger.info("Starting checker %r for %s", command,
1074
self.name)
1075
# We don't need to redirect stdout and stderr, since
1076
# in normal mode, that is already done by daemon(),
1077
# and in debug mode we don't want to. (Stdin is
1078
# always replaced by /dev/null.)
1079
# The exception is when not debugging but nevertheless
1080
# running in the foreground; use the previously
1081
# created wnull.
1082
popen_args = {"close_fds": True,
1083
"shell": True,
1084
"cwd": "/"}
1085
if (not self.server_settings["debug"]
1086
and self.server_settings["foreground"]):
1087
popen_args.update({"stdout": wnull,
1088
"stderr": wnull})
1089
pipe = multiprocessing.Pipe(duplex=False)
1090
self.checker = multiprocessing.Process(
1091
target=call_pipe,
1092
args=(pipe[1], subprocess.call, command),
1093
kwargs=popen_args)
1094
self.checker.start()
1095
self.checker_callback_tag = GLib.io_add_watch(
1096
pipe[0].fileno(), GLib.IO_IN,
1097
self.checker_callback, pipe[0], command)
1098
# Re-run this periodically if run by GLib.timeout_add
718
try:
719
logger.info("Starting checker %r for %s", command,
720
self.name)
721
# We don't need to redirect stdout and stderr, since
722
# in normal mode, that is already done by daemon(),
723
# and in debug mode we don't want to. (Stdin is
724
# always replaced by /dev/null.)
725
# The exception is when not debugging but nevertheless
726
# running in the foreground; use the previously
727
# created wnull.
728
popen_args = {}
729
if (not self.server_settings["debug"]
730
and self.server_settings["foreground"]):
731
popen_args.update({"stdout": wnull,
732
"stderr": wnull })
733
self.checker = subprocess.Popen(command,
734
close_fds=True,
735
shell=True,
736
cwd="/",
737
**popen_args)
738
except OSError as error:
739
logger.error("Failed to start subprocess",
740
exc_info=error)
741
return True
742
self.checker_callback_tag = gobject.child_watch_add(
743
self.checker.pid, self.checker_callback, data=command)
744
# The checker may have completed before the gobject
745
# watch was added. Check for this.
746
try:
747
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
748
except OSError as error:
749
if error.errno == errno.ECHILD:
750
# This should never happen
751
logger.error("Child process vanished",
752
exc_info=error)
753
return True
754
raise
755
if pid:
756
gobject.source_remove(self.checker_callback_tag)
757
self.checker_callback(pid, status, command)
758
# Re-run this periodically if run by gobject.timeout_add
1099
759
return True
1100
760
1101
761
def stop_checker(self):
1102
762
"""Force the checker process, if any, to stop."""
1103
763
if self.checker_callback_tag:
1104
GLib.source_remove(self.checker_callback_tag)
764
gobject.source_remove(self.checker_callback_tag)
1105
765
self.checker_callback_tag = None
1106
766
if getattr(self, "checker", None) is None:
1107
767
return
1108
768
logger.debug("Stopping checker for %(name)s", vars(self))
1109
self.checker.terminate()
769
try:
770
self.checker.terminate()
771
#time.sleep(0.5)
772
#if self.checker.poll() is None:
773
# self.checker.kill()
774
except OSError as error:
775
if error.errno != errno.ESRCH: # No such process
776
raise
1110
777
self.checker = None
1111
778
1112
779
1116
783
byte_arrays=False):
1117
784
"""Decorators for marking methods of a DBusObjectWithProperties to
1118
785
become properties on the D-Bus.
1119
786
1120
787
The decorated method will be called with no arguments by "Get"
1121
788
and with one argument by "Set".
1122
789
1123
790
The parameters, where they are supported, are the same as
1124
791
dbus.service.method, except there is only "signature", since the
1125
792
type from Get() and the type sent to Set() is the same.
1129
796
if byte_arrays and signature != "ay":
1130
797
raise ValueError("Byte arrays not supported for non-'ay'"
1131
798
" signature {!r}".format(signature))
1132
799
1133
800
def decorator(func):
1134
801
func._dbus_is_property = True
1135
802
func._dbus_interface = dbus_interface
1138
805
func._dbus_name = func.__name__
1139
806
if func._dbus_name.endswith("_dbus_property"):
1140
807
func._dbus_name = func._dbus_name[:-14]
1141
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
808
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1142
809
return func
1143
810
1144
811
return decorator
1145
812
1146
813
1147
814
def dbus_interface_annotations(dbus_interface):
1148
815
"""Decorator for marking functions returning interface annotations
1149
816
1150
817
Usage:
1151
818
1152
819
@dbus_interface_annotations("org.example.Interface")
1153
820
def _foo(self): # Function name does not matter
1154
821
return {"org.freedesktop.DBus.Deprecated": "true",
1155
822
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1156
823
"false"}
1157
824
"""
1158
825
1159
826
def decorator(func):
1160
827
func._dbus_is_interface = True
1161
828
func._dbus_interface = dbus_interface
1162
829
func._dbus_name = dbus_interface
1163
830
return func
1164
831
1165
832
return decorator
1166
833
1167
834
1168
835
def dbus_annotations(annotations):
1169
836
"""Decorator to annotate D-Bus methods, signals or properties
1170
837
Usage:
1171
838
1172
839
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1173
840
"org.freedesktop.DBus.Property."
1174
841
"EmitsChangedSignal": "false"})
1176
843
access="r")
1177
844
def Property_dbus_property(self):
1178
845
return dbus.Boolean(False)
1179
1180
See also the DBusObjectWithAnnotations class.
1181
846
"""
1182
847
1183
848
def decorator(func):
1184
849
func._dbus_annotations = annotations
1185
850
return func
1186
851
1187
852
return decorator
1188
853
1189
854
1205
870
pass
1206
871
1207
872
1208
class DBusObjectWithAnnotations(dbus.service.Object):
1209
"""A D-Bus object with annotations.
1210
1211
Classes inheriting from this can use the dbus_annotations
1212
decorator to add annotations to methods or signals.
873
class DBusObjectWithProperties(dbus.service.Object):
874
"""A D-Bus object with properties.
875
876
Classes inheriting from this can use the dbus_service_property
877
decorator to expose methods as D-Bus properties. It exposes the
878
standard Get(), Set(), and GetAll() methods on the D-Bus.
1213
879
"""
1214
880
1215
881
@staticmethod
1216
882
def _is_dbus_thing(thing):
1217
883
"""Returns a function testing if an attribute is a D-Bus thing
1218
884
1219
885
If called like _is_dbus_thing("method") it returns a function
1220
886
suitable for use as predicate to inspect.getmembers().
1221
887
"""
1222
888
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1223
889
False)
1224
890
1225
891
def _get_all_dbus_things(self, thing):
1226
892
"""Returns a generator of (name, attribute) pairs
1227
893
"""
1230
896
for cls in self.__class__.__mro__
1231
897
for name, athing in
1232
898
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1233
1234
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1235
out_signature="s",
1236
path_keyword='object_path',
1237
connection_keyword='connection')
1238
def Introspect(self, object_path, connection):
1239
"""Overloading of standard D-Bus method.
1240
1241
Inserts annotation tags on methods and signals.
1242
"""
1243
xmlstring = dbus.service.Object.Introspect(self, object_path,
1244
connection)
1245
try:
1246
document = xml.dom.minidom.parseString(xmlstring)
1247
1248
for if_tag in document.getElementsByTagName("interface"):
1249
# Add annotation tags
1250
for typ in ("method", "signal"):
1251
for tag in if_tag.getElementsByTagName(typ):
1252
annots = dict()
1253
for name, prop in (self.
1254
_get_all_dbus_things(typ)):
1255
if (name == tag.getAttribute("name")
1256
and prop._dbus_interface
1257
== if_tag.getAttribute("name")):
1258
annots.update(getattr(
1259
prop, "_dbus_annotations", {}))
1260
for name, value in annots.items():
1261
ann_tag = document.createElement(
1262
"annotation")
1263
ann_tag.setAttribute("name", name)
1264
ann_tag.setAttribute("value", value)
1265
tag.appendChild(ann_tag)
1266
# Add interface annotation tags
1267
for annotation, value in dict(
1268
itertools.chain.from_iterable(
1269
annotations().items()
1270
for name, annotations
1271
in self._get_all_dbus_things("interface")
1272
if name == if_tag.getAttribute("name")
1273
)).items():
1274
ann_tag = document.createElement("annotation")
1275
ann_tag.setAttribute("name", annotation)
1276
ann_tag.setAttribute("value", value)
1277
if_tag.appendChild(ann_tag)
1278
# Fix argument name for the Introspect method itself
1279
if (if_tag.getAttribute("name")
1280
== dbus.INTROSPECTABLE_IFACE):
1281
for cn in if_tag.getElementsByTagName("method"):
1282
if cn.getAttribute("name") == "Introspect":
1283
for arg in cn.getElementsByTagName("arg"):
1284
if (arg.getAttribute("direction")
1285
== "out"):
1286
arg.setAttribute("name",
1287
"xml_data")
1288
xmlstring = document.toxml("utf-8")
1289
document.unlink()
1290
except (AttributeError, xml.dom.DOMException,
1291
xml.parsers.expat.ExpatError) as error:
1292
logger.error("Failed to override Introspection method",
1293
exc_info=error)
1294
return xmlstring
1295
1296
1297
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1298
"""A D-Bus object with properties.
1299
1300
Classes inheriting from this can use the dbus_service_property
1301
decorator to expose methods as D-Bus properties. It exposes the
1302
standard Get(), Set(), and GetAll() methods on the D-Bus.
1303
"""
1304
899
1305
900
def _get_dbus_property(self, interface_name, property_name):
1306
901
"""Returns a bound method if one exists which is a D-Bus
1307
902
property with the specified name and interface.
1312
907
if (value._dbus_name == property_name
1313
908
and value._dbus_interface == interface_name):
1314
909
return value.__get__(self)
1315
910
1316
911
# No such property
1317
912
raise DBusPropertyNotFound("{}:{}.{}".format(
1318
913
self.dbus_object_path, interface_name, property_name))
1319
1320
@classmethod
1321
def _get_all_interface_names(cls):
1322
"""Get a sequence of all interfaces supported by an object"""
1323
return (name for name in set(getattr(getattr(x, attr),
1324
"_dbus_interface", None)
1325
for x in (inspect.getmro(cls))
1326
for attr in dir(x))
1327
if name is not None)
1328
914
1329
915
@dbus.service.method(dbus.PROPERTIES_IFACE,
1330
916
in_signature="ss",
1331
917
out_signature="v")
1339
925
if not hasattr(value, "variant_level"):
1340
926
return value
1341
927
return type(value)(value, variant_level=value.variant_level+1)
1342
928
1343
929
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1344
930
def Set(self, interface_name, property_name, value):
1345
931
"""Standard D-Bus property Set() method, see D-Bus standard.
1357
943
value = dbus.ByteArray(b''.join(chr(byte)
1358
944
for byte in value))
1359
945
prop(value)
1360
946
1361
947
@dbus.service.method(dbus.PROPERTIES_IFACE,
1362
948
in_signature="s",
1363
949
out_signature="a{sv}")
1364
950
def GetAll(self, interface_name):
1365
951
"""Standard D-Bus property GetAll() method, see D-Bus
1366
952
standard.
1367
953
1368
954
Note: Will not include properties with access="write".
1369
955
"""
1370
956
properties = {}
1381
967
properties[name] = value
1382
968
continue
1383
969
properties[name] = type(value)(
1384
value, variant_level=value.variant_level + 1)
970
value, variant_level = value.variant_level + 1)
1385
971
return dbus.Dictionary(properties, signature="sv")
1386
972
1387
973
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1388
974
def PropertiesChanged(self, interface_name, changed_properties,
1389
975
invalidated_properties):
1391
977
standard.
1392
978
"""
1393
979
pass
1394
980
1395
981
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1396
982
out_signature="s",
1397
983
path_keyword='object_path',
1398
984
connection_keyword='connection')
1399
985
def Introspect(self, object_path, connection):
1400
986
"""Overloading of standard D-Bus method.
1401
987
1402
988
Inserts property tags and interface annotation tags.
1403
989
"""
1404
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1405
object_path,
1406
connection)
990
xmlstring = dbus.service.Object.Introspect(self, object_path,
991
connection)
1407
992
try:
1408
993
document = xml.dom.minidom.parseString(xmlstring)
1409
994
1410
995
def make_tag(document, name, prop):
1411
996
e = document.createElement("property")
1412
997
e.setAttribute("name", name)
1413
998
e.setAttribute("type", prop._dbus_signature)
1414
999
e.setAttribute("access", prop._dbus_access)
1415
1000
return e
1416
1001
1417
1002
for if_tag in document.getElementsByTagName("interface"):
1418
1003
# Add property tags
1419
1004
for tag in (make_tag(document, name, prop)
1422
1007
if prop._dbus_interface
1423
1008
== if_tag.getAttribute("name")):
1424
1009
if_tag.appendChild(tag)
1425
# Add annotation tags for properties
1426
for tag in if_tag.getElementsByTagName("property"):
1427
annots = dict()
1428
for name, prop in self._get_all_dbus_things(
1429
"property"):
1430
if (name == tag.getAttribute("name")
1431
and prop._dbus_interface
1432
== if_tag.getAttribute("name")):
1433
annots.update(getattr(
1434
prop, "_dbus_annotations", {}))
1435
for name, value in annots.items():
1436
ann_tag = document.createElement(
1437
"annotation")
1438
ann_tag.setAttribute("name", name)
1439
ann_tag.setAttribute("value", value)
1440
tag.appendChild(ann_tag)
1010
# Add annotation tags
1011
for typ in ("method", "signal", "property"):
1012
for tag in if_tag.getElementsByTagName(typ):
1013
annots = dict()
1014
for name, prop in (self.
1015
_get_all_dbus_things(typ)):
1016
if (name == tag.getAttribute("name")
1017
and prop._dbus_interface
1018
== if_tag.getAttribute("name")):
1019
annots.update(getattr(
1020
prop, "_dbus_annotations", {}))
1021
for name, value in annots.items():
1022
ann_tag = document.createElement(
1023
"annotation")
1024
ann_tag.setAttribute("name", name)
1025
ann_tag.setAttribute("value", value)
1026
tag.appendChild(ann_tag)
1027
# Add interface annotation tags
1028
for annotation, value in dict(
1029
itertools.chain.from_iterable(
1030
annotations().items()
1031
for name, annotations
1032
in self._get_all_dbus_things("interface")
1033
if name == if_tag.getAttribute("name")
1034
)).items():
1035
ann_tag = document.createElement("annotation")
1036
ann_tag.setAttribute("name", annotation)
1037
ann_tag.setAttribute("value", value)
1038
if_tag.appendChild(ann_tag)
1441
1039
# Add the names to the return values for the
1442
1040
# "org.freedesktop.DBus.Properties" methods
1443
1041
if (if_tag.getAttribute("name")
1461
1059
exc_info=error)
1462
1060
return xmlstring
1463
1061
1464
try:
1465
dbus.OBJECT_MANAGER_IFACE
1466
except AttributeError:
1467
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1468
1469
1470
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1471
"""A D-Bus object with an ObjectManager.
1472
1473
Classes inheriting from this exposes the standard
1474
GetManagedObjects call and the InterfacesAdded and
1475
InterfacesRemoved signals on the standard
1476
"org.freedesktop.DBus.ObjectManager" interface.
1477
1478
Note: No signals are sent automatically; they must be sent
1479
manually.
1480
"""
1481
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1482
out_signature="a{oa{sa{sv}}}")
1483
def GetManagedObjects(self):
1484
"""This function must be overridden"""
1485
raise NotImplementedError()
1486
1487
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1488
signature="oa{sa{sv}}")
1489
def InterfacesAdded(self, object_path, interfaces_and_properties):
1490
pass
1491
1492
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1493
def InterfacesRemoved(self, object_path, interfaces):
1494
pass
1495
1496
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1497
out_signature="s",
1498
path_keyword='object_path',
1499
connection_keyword='connection')
1500
def Introspect(self, object_path, connection):
1501
"""Overloading of standard D-Bus method.
1502
1503
Override return argument name of GetManagedObjects to be
1504
"objpath_interfaces_and_properties"
1505
"""
1506
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1507
object_path,
1508
connection)
1509
try:
1510
document = xml.dom.minidom.parseString(xmlstring)
1511
1512
for if_tag in document.getElementsByTagName("interface"):
1513
# Fix argument name for the GetManagedObjects method
1514
if (if_tag.getAttribute("name")
1515
== dbus.OBJECT_MANAGER_IFACE):
1516
for cn in if_tag.getElementsByTagName("method"):
1517
if (cn.getAttribute("name")
1518
== "GetManagedObjects"):
1519
for arg in cn.getElementsByTagName("arg"):
1520
if (arg.getAttribute("direction")
1521
== "out"):
1522
arg.setAttribute(
1523
"name",
1524
"objpath_interfaces"
1525
"_and_properties")
1526
xmlstring = document.toxml("utf-8")
1527
document.unlink()
1528
except (AttributeError, xml.dom.DOMException,
1529
xml.parsers.expat.ExpatError) as error:
1530
logger.error("Failed to override Introspection method",
1531
exc_info=error)
1532
return xmlstring
1533
1534
1062
1535
1063
def datetime_to_dbus(dt, variant_level=0):
1536
1064
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1537
1065
if dt is None:
1538
return dbus.String("", variant_level=variant_level)
1066
return dbus.String("", variant_level = variant_level)
1539
1067
return dbus.String(dt.isoformat(), variant_level=variant_level)
1540
1068
1541
1069
1544
1072
dbus.service.Object, it will add alternate D-Bus attributes with
1545
1073
interface names according to the "alt_interface_names" mapping.
1546
1074
Usage:
1547
1075
1548
1076
@alternate_dbus_interfaces({"org.example.Interface":
1549
1077
"net.example.AlternateInterface"})
1550
1078
class SampleDBusObject(dbus.service.Object):
1551
1079
@dbus.service.method("org.example.Interface")
1552
1080
def SampleDBusMethod():
1553
1081
pass
1554
1082
1555
1083
The above "SampleDBusMethod" on "SampleDBusObject" will be
1556
1084
reachable via two interfaces: "org.example.Interface" and
1557
1085
"net.example.AlternateInterface", the latter of which will have
1558
1086
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1559
1087
"true", unless "deprecate" is passed with a False value.
1560
1088
1561
1089
This works for methods and signals, and also for D-Bus properties
1562
1090
(from DBusObjectWithProperties) and interfaces (from the
1563
1091
dbus_interface_annotations decorator).
1564
1092
"""
1565
1093
1566
1094
def wrapper(cls):
1567
1095
for orig_interface_name, alt_interface_name in (
1568
1096
alt_interface_names.items()):
1585
1113
if getattr(attribute, "_dbus_is_signal", False):
1586
1114
# Extract the original non-method undecorated
1587
1115
# function by black magic
1588
if sys.version_info.major == 2:
1589
nonmethod_func = (dict(
1590
zip(attribute.func_code.co_freevars,
1591
attribute.__closure__))
1592
["func"].cell_contents)
1593
else:
1594
nonmethod_func = (dict(
1595
zip(attribute.__code__.co_freevars,
1596
attribute.__closure__))
1597
["func"].cell_contents)
1116
nonmethod_func = (dict(
1117
zip(attribute.func_code.co_freevars,
1118
attribute.__closure__))
1119
["func"].cell_contents)
1598
1120
# Create a new, but exactly alike, function
1599
1121
# object, and decorate it to be a new D-Bus signal
1600
1122
# with the alternate D-Bus interface name
1601
new_function = copy_function(nonmethod_func)
1602
1123
new_function = (dbus.service.signal(
1603
alt_interface,
1604
attribute._dbus_signature)(new_function))
1124
alt_interface, attribute._dbus_signature)
1125
(types.FunctionType(
1126
nonmethod_func.func_code,
1127
nonmethod_func.func_globals,
1128
nonmethod_func.func_name,
1129
nonmethod_func.func_defaults,
1130
nonmethod_func.func_closure)))
1605
1131
# Copy annotations, if any
1606
1132
try:
1607
1133
new_function._dbus_annotations = dict(
1608
1134
attribute._dbus_annotations)
1609
1135
except AttributeError:
1610
1136
pass
1611
1612
1137
# Define a creator of a function to call both the
1613
1138
# original and alternate functions, so both the
1614
1139
# original and alternate signals gets sent when
1617
1142
"""This function is a scope container to pass
1618
1143
func1 and func2 to the "call_both" function
1619
1144
outside of its arguments"""
1620
1621
@functools.wraps(func2)
1145
1622
1146
def call_both(*args, **kwargs):
1623
1147
"""This function will emit two D-Bus
1624
1148
signals by calling func1 and func2"""
1625
1149
func1(*args, **kwargs)
1626
1150
func2(*args, **kwargs)
1627
# Make wrapper function look like a D-Bus
1628
# signal
1629
for name, attr in inspect.getmembers(func2):
1630
if name.startswith("_dbus_"):
1631
setattr(call_both, name, attr)
1632
1151
1633
1152
return call_both
1634
1153
# Create the "call_both" function and add it to
1635
1154
# the class
1645
1164
alt_interface,
1646
1165
attribute._dbus_in_signature,
1647
1166
attribute._dbus_out_signature)
1648
(copy_function(attribute)))
1167
(types.FunctionType(attribute.func_code,
1168
attribute.func_globals,
1169
attribute.func_name,
1170
attribute.func_defaults,
1171
attribute.func_closure)))
1649
1172
# Copy annotations, if any
1650
1173
try:
1651
1174
attr[attrname]._dbus_annotations = dict(
1663
1186
attribute._dbus_access,
1664
1187
attribute._dbus_get_args_options
1665
1188
["byte_arrays"])
1666
(copy_function(attribute)))
1189
(types.FunctionType(
1190
attribute.func_code,
1191
attribute.func_globals,
1192
attribute.func_name,
1193
attribute.func_defaults,
1194
attribute.func_closure)))
1667
1195
# Copy annotations, if any
1668
1196
try:
1669
1197
attr[attrname]._dbus_annotations = dict(
1678
1206
# to the class.
1679
1207
attr[attrname] = (
1680
1208
dbus_interface_annotations(alt_interface)
1681
(copy_function(attribute)))
1209
(types.FunctionType(attribute.func_code,
1210
attribute.func_globals,
1211
attribute.func_name,
1212
attribute.func_defaults,
1213
attribute.func_closure)))
1682
1214
if deprecate:
1683
1215
# Deprecate all alternate interfaces
1684
iname = "_AlternateDBusNames_interface_annotation{}"
1216
iname="_AlternateDBusNames_interface_annotation{}"
1685
1217
for interface_name in interface_names:
1686
1218
1687
1219
@dbus_interface_annotations(interface_name)
1688
1220
def func(self):
1689
return {"org.freedesktop.DBus.Deprecated":
1690
"true"}
1221
return { "org.freedesktop.DBus.Deprecated":
1222
"true" }
1691
1223
# Find an unused name
1692
1224
for aname in (iname.format(i)
1693
1225
for i in itertools.count()):
1697
1229
if interface_names:
1698
1230
# Replace the class with a new subclass of it with
1699
1231
# methods, signals, etc. as created above.
1700
if sys.version_info.major == 2:
1701
cls = type(b"{}Alternate".format(cls.__name__),
1702
(cls, ), attr)
1703
else:
1704
cls = type("{}Alternate".format(cls.__name__),
1705
(cls, ), attr)
1232
cls = type(b"{}Alternate".format(cls.__name__),
1233
(cls, ), attr)
1706
1234
return cls
1707
1235
1708
1236
return wrapper
1709
1237
1710
1238
1712
1240
"se.bsnet.fukt.Mandos"})
1713
1241
class ClientDBus(Client, DBusObjectWithProperties):
1714
1242
"""A Client class using D-Bus
1715
1243
1716
1244
Attributes:
1717
1245
dbus_object_path: dbus.ObjectPath
1718
1246
bus: dbus.SystemBus()
1719
1247
"""
1720
1248
1721
1249
runtime_expansions = (Client.runtime_expansions
1722
1250
+ ("dbus_object_path", ))
1723
1251
1724
1252
_interface = "se.recompile.Mandos.Client"
1725
1253
1726
1254
# dbus.service.Object doesn't use super(), so we can't either.
1727
1728
def __init__(self, bus=None, *args, **kwargs):
1255
1256
def __init__(self, bus = None, *args, **kwargs):
1729
1257
self.bus = bus
1730
1258
Client.__init__(self, *args, **kwargs)
1731
1259
# Only now, when this client is initialized, can it show up on
1737
1265
"/clients/" + client_object_name)
1738
1266
DBusObjectWithProperties.__init__(self, self.bus,
1739
1267
self.dbus_object_path)
1740
1268
1741
1269
def notifychangeproperty(transform_func, dbus_name,
1742
1270
type_func=lambda x: x,
1743
1271
variant_level=1,
1745
1273
_interface=_interface):
1746
1274
""" Modify a variable so that it's a property which announces
1747
1275
its changes to DBus.
1748
1276
1749
1277
transform_fun: Function that takes a value and a variant_level
1750
1278
and transforms it to a D-Bus type.
1751
1279
dbus_name: D-Bus name of the variable
1754
1282
variant_level: D-Bus variant level. Default: 1
1755
1283
"""
1756
1284
attrname = "_{}".format(dbus_name)
1757
1285
1758
1286
def setter(self, value):
1759
1287
if hasattr(self, "dbus_object_path"):
1760
1288
if (not hasattr(self, attrname) or
1767
1295
else:
1768
1296
dbus_value = transform_func(
1769
1297
type_func(value),
1770
variant_level=variant_level)
1298
variant_level = variant_level)
1771
1299
self.PropertyChanged(dbus.String(dbus_name),
1772
1300
dbus_value)
1773
1301
self.PropertiesChanged(
1774
1302
_interface,
1775
dbus.Dictionary({dbus.String(dbus_name):
1776
dbus_value}),
1303
dbus.Dictionary({ dbus.String(dbus_name):
1304
dbus_value }),
1777
1305
dbus.Array())
1778
1306
setattr(self, attrname, value)
1779
1307
1780
1308
return property(lambda self: getattr(self, attrname), setter)
1781
1309
1782
1310
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1783
1311
approvals_pending = notifychangeproperty(dbus.Boolean,
1784
1312
"ApprovalPending",
1785
type_func=bool)
1313
type_func = bool)
1786
1314
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1787
1315
last_enabled = notifychangeproperty(datetime_to_dbus,
1788
1316
"LastEnabled")
1789
1317
checker = notifychangeproperty(
1790
1318
dbus.Boolean, "CheckerRunning",
1791
type_func=lambda checker: checker is not None)
1319
type_func = lambda checker: checker is not None)
1792
1320
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1793
1321
"LastCheckedOK")
1794
1322
last_checker_status = notifychangeproperty(dbus.Int16,
1799
1327
"ApprovedByDefault")
1800
1328
approval_delay = notifychangeproperty(
1801
1329
dbus.UInt64, "ApprovalDelay",
1802
type_func=lambda td: td.total_seconds() * 1000)
1330
type_func = lambda td: td.total_seconds() * 1000)
1803
1331
approval_duration = notifychangeproperty(
1804
1332
dbus.UInt64, "ApprovalDuration",
1805
type_func=lambda td: td.total_seconds() * 1000)
1333
type_func = lambda td: td.total_seconds() * 1000)
1806
1334
host = notifychangeproperty(dbus.String, "Host")
1807
1335
timeout = notifychangeproperty(
1808
1336
dbus.UInt64, "Timeout",
1809
type_func=lambda td: td.total_seconds() * 1000)
1337
type_func = lambda td: td.total_seconds() * 1000)
1810
1338
extended_timeout = notifychangeproperty(
1811
1339
dbus.UInt64, "ExtendedTimeout",
1812
type_func=lambda td: td.total_seconds() * 1000)
1340
type_func = lambda td: td.total_seconds() * 1000)
1813
1341
interval = notifychangeproperty(
1814
1342
dbus.UInt64, "Interval",
1815
type_func=lambda td: td.total_seconds() * 1000)
1343
type_func = lambda td: td.total_seconds() * 1000)
1816
1344
checker_command = notifychangeproperty(dbus.String, "Checker")
1817
1345
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1818
1346
invalidate_only=True)
1819
1347
1820
1348
del notifychangeproperty
1821
1349
1822
1350
def __del__(self, *args, **kwargs):
1823
1351
try:
1824
1352
self.remove_from_connection()
1827
1355
if hasattr(DBusObjectWithProperties, "__del__"):
1828
1356
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1829
1357
Client.__del__(self, *args, **kwargs)
1830
1831
def checker_callback(self, source, condition,
1832
connection, command, *args, **kwargs):
1833
ret = Client.checker_callback(self, source, condition,
1834
connection, command, *args,
1835
**kwargs)
1836
exitstatus = self.last_checker_status
1837
if exitstatus >= 0:
1358
1359
def checker_callback(self, pid, condition, command,
1360
*args, **kwargs):
1361
self.checker_callback_tag = None
1362
self.checker = None
1363
if os.WIFEXITED(condition):
1364
exitstatus = os.WEXITSTATUS(condition)
1838
1365
# Emit D-Bus signal
1839
1366
self.CheckerCompleted(dbus.Int16(exitstatus),
1840
# This is specific to GNU libC
1841
dbus.Int64(exitstatus << 8),
1367
dbus.Int64(condition),
1842
1368
dbus.String(command))
1843
1369
else:
1844
1370
# Emit D-Bus signal
1845
1371
self.CheckerCompleted(dbus.Int16(-1),
1846
dbus.Int64(
1847
# This is specific to GNU libC
1848
(exitstatus << 8)
1849
| self.last_checker_signal),
1372
dbus.Int64(condition),
1850
1373
dbus.String(command))
1851
return ret
1852
1374
1375
return Client.checker_callback(self, pid, condition, command,
1376
*args, **kwargs)
1377
1853
1378
def start_checker(self, *args, **kwargs):
1854
1379
old_checker_pid = getattr(self.checker, "pid", None)
1855
1380
r = Client.start_checker(self, *args, **kwargs)
1859
1384
# Emit D-Bus signal
1860
1385
self.CheckerStarted(self.current_checker_command)
1861
1386
return r
1862
1387
1863
1388
def _reset_approved(self):
1864
1389
self.approved = None
1865
1390
return False
1866
1391
1867
1392
def approve(self, value=True):
1868
1393
self.approved = value
1869
GLib.timeout_add(int(self.approval_duration.total_seconds()
1870
* 1000), self._reset_approved)
1394
gobject.timeout_add(int(self.approval_duration.total_seconds()
1395
* 1000), self._reset_approved)
1871
1396
self.send_changedstate()
1872
1873
# D-Bus methods, signals & properties
1874
1875
# Interfaces
1876
1877
# Signals
1878
1397
1398
## D-Bus methods, signals & properties
1399
1400
## Interfaces
1401
1402
## Signals
1403
1879
1404
# CheckerCompleted - signal
1880
1405
@dbus.service.signal(_interface, signature="nxs")
1881
1406
def CheckerCompleted(self, exitcode, waitstatus, command):
1882
1407
"D-Bus signal"
1883
1408
pass
1884
1409
1885
1410
# CheckerStarted - signal
1886
1411
@dbus.service.signal(_interface, signature="s")
1887
1412
def CheckerStarted(self, command):
1888
1413
"D-Bus signal"
1889
1414
pass
1890
1415
1891
1416
# PropertyChanged - signal
1892
1417
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1893
1418
@dbus.service.signal(_interface, signature="sv")
1894
1419
def PropertyChanged(self, property, value):
1895
1420
"D-Bus signal"
1896
1421
pass
1897
1422
1898
1423
# GotSecret - signal
1899
1424
@dbus.service.signal(_interface)
1900
1425
def GotSecret(self):
1903
1428
server to mandos-client
1904
1429
"""
1905
1430
pass
1906
1431
1907
1432
# Rejected - signal
1908
1433
@dbus.service.signal(_interface, signature="s")
1909
1434
def Rejected(self, reason):
1910
1435
"D-Bus signal"
1911
1436
pass
1912
1437
1913
1438
# NeedApproval - signal
1914
1439
@dbus.service.signal(_interface, signature="tb")
1915
1440
def NeedApproval(self, timeout, default):
1916
1441
"D-Bus signal"
1917
1442
return self.need_approval()
1918
1919
# Methods
1920
1443
1444
## Methods
1445
1921
1446
# Approve - method
1922
1447
@dbus.service.method(_interface, in_signature="b")
1923
1448
def Approve(self, value):
1924
1449
self.approve(value)
1925
1450
1926
1451
# CheckedOK - method
1927
1452
@dbus.service.method(_interface)
1928
1453
def CheckedOK(self):
1929
1454
self.checked_ok()
1930
1455
1931
1456
# Enable - method
1932
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1933
1457
@dbus.service.method(_interface)
1934
1458
def Enable(self):
1935
1459
"D-Bus method"
1936
1460
self.enable()
1937
1461
1938
1462
# StartChecker - method
1939
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1940
1463
@dbus.service.method(_interface)
1941
1464
def StartChecker(self):
1942
1465
"D-Bus method"
1943
1466
self.start_checker()
1944
1467
1945
1468
# Disable - method
1946
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1947
1469
@dbus.service.method(_interface)
1948
1470
def Disable(self):
1949
1471
"D-Bus method"
1950
1472
self.disable()
1951
1473
1952
1474
# StopChecker - method
1953
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1954
1475
@dbus.service.method(_interface)
1955
1476
def StopChecker(self):
1956
1477
self.stop_checker()
1957
1958
# Properties
1959
1478
1479
## Properties
1480
1960
1481
# ApprovalPending - property
1961
1482
@dbus_service_property(_interface, signature="b", access="read")
1962
1483
def ApprovalPending_dbus_property(self):
1963
1484
return dbus.Boolean(bool(self.approvals_pending))
1964
1485
1965
1486
# ApprovedByDefault - property
1966
1487
@dbus_service_property(_interface,
1967
1488
signature="b",
1970
1491
if value is None: # get
1971
1492
return dbus.Boolean(self.approved_by_default)
1972
1493
self.approved_by_default = bool(value)
1973
1494
1974
1495
# ApprovalDelay - property
1975
1496
@dbus_service_property(_interface,
1976
1497
signature="t",
1980
1501
return dbus.UInt64(self.approval_delay.total_seconds()
1981
1502
* 1000)
1982
1503
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1983
1504
1984
1505
# ApprovalDuration - property
1985
1506
@dbus_service_property(_interface,
1986
1507
signature="t",
1990
1511
return dbus.UInt64(self.approval_duration.total_seconds()
1991
1512
* 1000)
1992
1513
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1993
1514
1994
1515
# Name - property
1995
@dbus_annotations(
1996
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1997
1516
@dbus_service_property(_interface, signature="s", access="read")
1998
1517
def Name_dbus_property(self):
1999
1518
return dbus.String(self.name)
2000
1519
2001
1520
# Fingerprint - property
2002
@dbus_annotations(
2003
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2004
1521
@dbus_service_property(_interface, signature="s", access="read")
2005
1522
def Fingerprint_dbus_property(self):
2006
1523
return dbus.String(self.fingerprint)
2007
1524
2008
1525
# Host - property
2009
1526
@dbus_service_property(_interface,
2010
1527
signature="s",
2013
1530
if value is None: # get
2014
1531
return dbus.String(self.host)
2015
1532
self.host = str(value)
2016
1533
2017
1534
# Created - property
2018
@dbus_annotations(
2019
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2020
1535
@dbus_service_property(_interface, signature="s", access="read")
2021
1536
def Created_dbus_property(self):
2022
1537
return datetime_to_dbus(self.created)
2023
1538
2024
1539
# LastEnabled - property
2025
1540
@dbus_service_property(_interface, signature="s", access="read")
2026
1541
def LastEnabled_dbus_property(self):
2027
1542
return datetime_to_dbus(self.last_enabled)
2028
1543
2029
1544
# Enabled - property
2030
1545
@dbus_service_property(_interface,
2031
1546
signature="b",
2037
1552
self.enable()
2038
1553
else:
2039
1554
self.disable()
2040
1555
2041
1556
# LastCheckedOK - property
2042
1557
@dbus_service_property(_interface,
2043
1558
signature="s",
2047
1562
self.checked_ok()
2048
1563
return
2049
1564
return datetime_to_dbus(self.last_checked_ok)
2050
1565
2051
1566
# LastCheckerStatus - property
2052
1567
@dbus_service_property(_interface, signature="n", access="read")
2053
1568
def LastCheckerStatus_dbus_property(self):
2054
1569
return dbus.Int16(self.last_checker_status)
2055
1570
2056
1571
# Expires - property
2057
1572
@dbus_service_property(_interface, signature="s", access="read")
2058
1573
def Expires_dbus_property(self):
2059
1574
return datetime_to_dbus(self.expires)
2060
1575
2061
1576
# LastApprovalRequest - property
2062
1577
@dbus_service_property(_interface, signature="s", access="read")
2063
1578
def LastApprovalRequest_dbus_property(self):
2064
1579
return datetime_to_dbus(self.last_approval_request)
2065
1580
2066
1581
# Timeout - property
2067
1582
@dbus_service_property(_interface,
2068
1583
signature="t",
2083
1598
if (getattr(self, "disable_initiator_tag", None)
2084
1599
is None):
2085
1600
return
2086
GLib.source_remove(self.disable_initiator_tag)
2087
self.disable_initiator_tag = GLib.timeout_add(
1601
gobject.source_remove(self.disable_initiator_tag)
1602
self.disable_initiator_tag = gobject.timeout_add(
2088
1603
int((self.expires - now).total_seconds() * 1000),
2089
1604
self.disable)
2090
1605
2091
1606
# ExtendedTimeout - property
2092
1607
@dbus_service_property(_interface,
2093
1608
signature="t",
2097
1612
return dbus.UInt64(self.extended_timeout.total_seconds()
2098
1613
* 1000)
2099
1614
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2100
1615
2101
1616
# Interval - property
2102
1617
@dbus_service_property(_interface,
2103
1618
signature="t",
2110
1625
return
2111
1626
if self.enabled:
2112
1627
# Reschedule checker run
2113
GLib.source_remove(self.checker_initiator_tag)
2114
self.checker_initiator_tag = GLib.timeout_add(
1628
gobject.source_remove(self.checker_initiator_tag)
1629
self.checker_initiator_tag = gobject.timeout_add(
2115
1630
value, self.start_checker)
2116
self.start_checker() # Start one now, too
2117
1631
self.start_checker() # Start one now, too
1632
2118
1633
# Checker - property
2119
1634
@dbus_service_property(_interface,
2120
1635
signature="s",
2123
1638
if value is None: # get
2124
1639
return dbus.String(self.checker_command)
2125
1640
self.checker_command = str(value)
2126
1641
2127
1642
# CheckerRunning - property
2128
1643
@dbus_service_property(_interface,
2129
1644
signature="b",
2135
1650
self.start_checker()
2136
1651
else:
2137
1652
self.stop_checker()
2138
1653
2139
1654
# ObjectPath - property
2140
@dbus_annotations(
2141
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2142
"org.freedesktop.DBus.Deprecated": "true"})
2143
1655
@dbus_service_property(_interface, signature="o", access="read")
2144
1656
def ObjectPath_dbus_property(self):
2145
return self.dbus_object_path # is already a dbus.ObjectPath
2146
1657
return self.dbus_object_path # is already a dbus.ObjectPath
1658
2147
1659
# Secret = property
2148
@dbus_annotations(
2149
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2150
"invalidates"})
2151
1660
@dbus_service_property(_interface,
2152
1661
signature="ay",
2153
1662
access="write",
2154
1663
byte_arrays=True)
2155
1664
def Secret_dbus_property(self, value):
2156
1665
self.secret = bytes(value)
2157
1666
2158
1667
del _interface
2159
1668
2160
1669
2163
1672
self._pipe = child_pipe
2164
1673
self._pipe.send(('init', fpr, address))
2165
1674
if not self._pipe.recv():
2166
raise KeyError(fpr)
2167
1675
raise KeyError()
1676
2168
1677
def __getattribute__(self, name):
2169
1678
if name == '_pipe':
2170
1679
return super(ProxyClient, self).__getattribute__(name)
2173
1682
if data[0] == 'data':
2174
1683
return data[1]
2175
1684
if data[0] == 'function':
2176
1685
2177
1686
def func(*args, **kwargs):
2178
1687
self._pipe.send(('funcall', name, args, kwargs))
2179
1688
return self._pipe.recv()[1]
2180
1689
2181
1690
return func
2182
1691
2183
1692
def __setattr__(self, name, value):
2184
1693
if name == '_pipe':
2185
1694
return super(ProxyClient, self).__setattr__(name, value)
2188
1697
2189
1698
class ClientHandler(socketserver.BaseRequestHandler, object):
2190
1699
"""A class to handle client connections.
2191
1700
2192
1701
Instantiated once for each connection to handle it.
2193
1702
Note: This will run in its own forked process."""
2194
1703
2195
1704
def handle(self):
2196
1705
with contextlib.closing(self.server.child_pipe) as child_pipe:
2197
1706
logger.info("TCP connection from: %s",
2198
1707
str(self.client_address))
2199
1708
logger.debug("Pipe FD: %d",
2200
1709
self.server.child_pipe.fileno())
2201
2202
session = gnutls.ClientSession(self.request)
2203
2204
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2205
# "+AES-256-CBC", "+SHA1",
2206
# "+COMP-NULL", "+CTYPE-OPENPGP",
2207
# "+DHE-DSS"))
1710
1711
session = gnutls.connection.ClientSession(
1712
self.request, gnutls.connection .X509Credentials())
1713
1714
# Note: gnutls.connection.X509Credentials is really a
1715
# generic GnuTLS certificate credentials object so long as
1716
# no X.509 keys are added to it. Therefore, we can use it
1717
# here despite using OpenPGP certificates.
1718
1719
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1720
# "+AES-256-CBC", "+SHA1",
1721
# "+COMP-NULL", "+CTYPE-OPENPGP",
1722
# "+DHE-DSS"))
2208
1723
# Use a fallback default, since this MUST be set.
2209
1724
priority = self.server.gnutls_priority
2210
1725
if priority is None:
2211
1726
priority = "NORMAL"
2212
gnutls.priority_set_direct(session._c_object,
2213
priority.encode("utf-8"),
2214
None)
2215
1727
gnutls.library.functions.gnutls_priority_set_direct(
1728
session._c_object, priority, None)
1729
2216
1730
# Start communication using the Mandos protocol
2217
1731
# Get protocol number
2218
1732
line = self.request.makefile().readline()
2223
1737
except (ValueError, IndexError, RuntimeError) as error:
2224
1738
logger.error("Unknown protocol version: %s", error)
2225
1739
return
2226
1740
2227
1741
# Start GnuTLS connection
2228
1742
try:
2229
1743
session.handshake()
2230
except gnutls.Error as error:
1744
except gnutls.errors.GNUTLSError as error:
2231
1745
logger.warning("Handshake failed: %s", error)
2232
1746
# Do not run session.bye() here: the session is not
2233
1747
# established. Just abandon the request.
2234
1748
return
2235
1749
logger.debug("Handshake succeeded")
2236
1750
2237
1751
approval_required = False
2238
1752
try:
2239
1753
try:
2240
1754
fpr = self.fingerprint(
2241
1755
self.peer_certificate(session))
2242
except (TypeError, gnutls.Error) as error:
1756
except (TypeError,
1757
gnutls.errors.GNUTLSError) as error:
2243
1758
logger.warning("Bad certificate: %s", error)
2244
1759
return
2245
1760
logger.debug("Fingerprint: %s", fpr)
2246
1761
2247
1762
try:
2248
1763
client = ProxyClient(child_pipe, fpr,
2249
1764
self.client_address)
2250
1765
except KeyError:
2251
1766
return
2252
1767
2253
1768
if client.approval_delay:
2254
1769
delay = client.approval_delay
2255
1770
client.approvals_pending += 1
2256
1771
approval_required = True
2257
1772
2258
1773
while True:
2259
1774
if not client.enabled:
2260
1775
logger.info("Client %s is disabled",
2263
1778
# Emit D-Bus signal
2264
1779
client.Rejected("Disabled")
2265
1780
return
2266
1781
2267
1782
if client.approved or not client.approval_delay:
2268
# We are approved or approval is disabled
1783
#We are approved or approval is disabled
2269
1784
break
2270
1785
elif client.approved is None:
2271
1786
logger.info("Client %s needs approval",
2282
1797
# Emit D-Bus signal
2283
1798
client.Rejected("Denied")
2284
1799
return
2285
2286
# wait until timeout or approved
1800
1801
#wait until timeout or approved
2287
1802
time = datetime.datetime.now()
2288
1803
client.changedstate.acquire()
2289
1804
client.changedstate.wait(delay.total_seconds())
2302
1817
break
2303
1818
else:
2304
1819
delay -= time2 - time
2305
2306
try:
2307
session.send(client.secret)
2308
except gnutls.Error as error:
2309
logger.warning("gnutls send failed",
2310
exc_info=error)
2311
return
2312
1820
1821
sent_size = 0
1822
while sent_size < len(client.secret):
1823
try:
1824
sent = session.send(client.secret[sent_size:])
1825
except gnutls.errors.GNUTLSError as error:
1826
logger.warning("gnutls send failed",
1827
exc_info=error)
1828
return
1829
logger.debug("Sent: %d, remaining: %d", sent,
1830
len(client.secret) - (sent_size
1831
+ sent))
1832
sent_size += sent
1833
2313
1834
logger.info("Sending secret to %s", client.name)
2314
1835
# bump the timeout using extended_timeout
2315
1836
client.bump_timeout(client.extended_timeout)
2316
1837
if self.server.use_dbus:
2317
1838
# Emit D-Bus signal
2318
1839
client.GotSecret()
2319
1840
2320
1841
finally:
2321
1842
if approval_required:
2322
1843
client.approvals_pending -= 1
2323
1844
try:
2324
1845
session.bye()
2325
except gnutls.Error as error:
1846
except gnutls.errors.GNUTLSError as error:
2326
1847
logger.warning("GnuTLS bye failed",
2327
1848
exc_info=error)
2328
1849
2329
1850
@staticmethod
2330
1851
def peer_certificate(session):
2331
1852
"Return the peer's OpenPGP certificate as a bytestring"
2332
1853
# If not an OpenPGP certificate...
2333
if (gnutls.certificate_type_get(session._c_object)
2334
!= gnutls.CRT_OPENPGP):
2335
# ...return invalid data
2336
return b""
1854
if (gnutls.library.functions.gnutls_certificate_type_get(
1855
session._c_object)
1856
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1857
# ...do the normal thing
1858
return session.peer_certificate
2337
1859
list_size = ctypes.c_uint(1)
2338
cert_list = (gnutls.certificate_get_peers
1860
cert_list = (gnutls.library.functions
1861
.gnutls_certificate_get_peers
2339
1862
(session._c_object, ctypes.byref(list_size)))
2340
1863
if not bool(cert_list) and list_size.value != 0:
2341
raise gnutls.Error("error getting peer certificate")
1864
raise gnutls.errors.GNUTLSError("error getting peer"
1865
" certificate")
2342
1866
if list_size.value == 0:
2343
1867
return None
2344
1868
cert = cert_list[0]
2345
1869
return ctypes.string_at(cert.data, cert.size)
2346
1870
2347
1871
@staticmethod
2348
1872
def fingerprint(openpgp):
2349
1873
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2350
1874
# New GnuTLS "datum" with the OpenPGP public key
2351
datum = gnutls.datum_t(
1875
datum = gnutls.library.types.gnutls_datum_t(
2352
1876
ctypes.cast(ctypes.c_char_p(openpgp),
2353
1877
ctypes.POINTER(ctypes.c_ubyte)),
2354
1878
ctypes.c_uint(len(openpgp)))
2355
1879
# New empty GnuTLS certificate
2356
crt = gnutls.openpgp_crt_t()
2357
gnutls.openpgp_crt_init(ctypes.byref(crt))
1880
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1881
gnutls.library.functions.gnutls_openpgp_crt_init(
1882
ctypes.byref(crt))
2358
1883
# Import the OpenPGP public key into the certificate
2359
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2360
gnutls.OPENPGP_FMT_RAW)
1884
gnutls.library.functions.gnutls_openpgp_crt_import(
1885
crt, ctypes.byref(datum),
1886
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
2361
1887
# Verify the self signature in the key
2362
1888
crtverify = ctypes.c_uint()
2363
gnutls.openpgp_crt_verify_self(crt, 0,
2364
ctypes.byref(crtverify))
1889
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1890
crt, 0, ctypes.byref(crtverify))
2365
1891
if crtverify.value != 0:
2366
gnutls.openpgp_crt_deinit(crt)
2367
raise gnutls.CertificateSecurityError("Verify failed")
1892
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1893
raise gnutls.errors.CertificateSecurityError(
1894
"Verify failed")
2368
1895
# New buffer for the fingerprint
2369
1896
buf = ctypes.create_string_buffer(20)
2370
1897
buf_len = ctypes.c_size_t()
2371
1898
# Get the fingerprint from the certificate into the buffer
2372
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2373
ctypes.byref(buf_len))
1899
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1900
crt, ctypes.byref(buf), ctypes.byref(buf_len))
2374
1901
# Deinit the certificate
2375
gnutls.openpgp_crt_deinit(crt)
1902
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2376
1903
# Convert the buffer to a Python bytestring
2377
1904
fpr = ctypes.string_at(buf, buf_len.value)
2378
1905
# Convert the bytestring to hexadecimal notation
2382
1909
2383
1910
class MultiprocessingMixIn(object):
2384
1911
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2385
1912
2386
1913
def sub_process_main(self, request, address):
2387
1914
try:
2388
1915
self.finish_request(request, address)
2389
1916
except Exception:
2390
1917
self.handle_error(request, address)
2391
1918
self.close_request(request)
2392
1919
2393
1920
def process_request(self, request, address):
2394
1921
"""Start a new process to process the request."""
2395
proc = multiprocessing.Process(target=self.sub_process_main,
2396
args=(request, address))
1922
proc = multiprocessing.Process(target = self.sub_process_main,
1923
args = (request, address))
2397
1924
proc.start()
2398
1925
return proc
2399
1926
2400
1927
2401
1928
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2402
1929
""" adds a pipe to the MixIn """
2403
1930
2404
1931
def process_request(self, request, client_address):
2405
1932
"""Overrides and wraps the original process_request().
2406
1933
2407
1934
This function creates a new pipe in self.pipe
2408
1935
"""
2409
1936
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2410
1937
2411
1938
proc = MultiprocessingMixIn.process_request(self, request,
2412
1939
client_address)
2413
1940
self.child_pipe.close()
2414
1941
self.add_pipe(parent_pipe, proc)
2415
1942
2416
1943
def add_pipe(self, parent_pipe, proc):
2417
1944
"""Dummy function; override as necessary"""
2418
1945
raise NotImplementedError()
2421
1948
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2422
1949
socketserver.TCPServer, object):
2423
1950
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2424
1951
2425
1952
Attributes:
2426
1953
enabled: Boolean; whether this server is activated yet
2427
1954
interface: None or a network interface name (string)
2428
1955
use_ipv6: Boolean; to use IPv6 or not
2429
1956
"""
2430
1957
2431
1958
def __init__(self, server_address, RequestHandlerClass,
2432
1959
interface=None,
2433
1960
use_ipv6=True,
2443
1970
self.socketfd = socketfd
2444
1971
# Save the original socket.socket() function
2445
1972
self.socket_socket = socket.socket
2446
2447
1973
# To implement --socket, we monkey patch socket.socket.
2448
#
1974
#
2449
1975
# (When socketserver.TCPServer is a new-style class, we
2450
1976
# could make self.socket into a property instead of monkey
2451
1977
# patching socket.socket.)
2452
#
1978
#
2453
1979
# Create a one-time-only replacement for socket.socket()
2454
1980
@functools.wraps(socket.socket)
2455
1981
def socket_wrapper(*args, **kwargs):
2467
1993
# socket_wrapper(), if socketfd was set.
2468
1994
socketserver.TCPServer.__init__(self, server_address,
2469
1995
RequestHandlerClass)
2470
1996
2471
1997
def server_bind(self):
2472
1998
"""This overrides the normal server_bind() function
2473
1999
to bind to an interface if one was specified, and also NOT to
2474
2000
bind to an address or port if they were not specified."""
2475
global SO_BINDTODEVICE
2476
2001
if self.interface is not None:
2477
2002
if SO_BINDTODEVICE is None:
2478
# Fall back to a hard-coded value which seems to be
2479
# common enough.
2480
logger.warning("SO_BINDTODEVICE not found, trying 25")
2481
SO_BINDTODEVICE = 25
2482
try:
2483
self.socket.setsockopt(
2484
socket.SOL_SOCKET, SO_BINDTODEVICE,
2485
(self.interface + "\0").encode("utf-8"))
2486
except socket.error as error:
2487
if error.errno == errno.EPERM:
2488
logger.error("No permission to bind to"
2489
" interface %s", self.interface)
2490
elif error.errno == errno.ENOPROTOOPT:
2491
logger.error("SO_BINDTODEVICE not available;"
2492
" cannot bind to interface %s",
2493
self.interface)
2494
elif error.errno == errno.ENODEV:
2495
logger.error("Interface %s does not exist,"
2496
" cannot bind", self.interface)
2497
else:
2498
raise
2003
logger.error("SO_BINDTODEVICE does not exist;"
2004
" cannot bind to interface %s",
2005
self.interface)
2006
else:
2007
try:
2008
self.socket.setsockopt(
2009
socket.SOL_SOCKET, SO_BINDTODEVICE,
2010
(self.interface + "\0").encode("utf-8"))
2011
except socket.error as error:
2012
if error.errno == errno.EPERM:
2013
logger.error("No permission to bind to"
2014
" interface %s", self.interface)
2015
elif error.errno == errno.ENOPROTOOPT:
2016
logger.error("SO_BINDTODEVICE not available;"
2017
" cannot bind to interface %s",
2018
self.interface)
2019
elif error.errno == errno.ENODEV:
2020
logger.error("Interface %s does not exist,"
2021
" cannot bind", self.interface)
2022
else:
2023
raise
2499
2024
# Only bind(2) the socket if we really need to.
2500
2025
if self.server_address[0] or self.server_address[1]:
2501
2026
if not self.server_address[0]:
2502
2027
if self.address_family == socket.AF_INET6:
2503
any_address = "::" # in6addr_any
2028
any_address = "::" # in6addr_any
2504
2029
else:
2505
any_address = "0.0.0.0" # INADDR_ANY
2030
any_address = "0.0.0.0" # INADDR_ANY
2506
2031
self.server_address = (any_address,
2507
2032
self.server_address[1])
2508
2033
elif not self.server_address[1]:
2518
2043
2519
2044
class MandosServer(IPv6_TCPServer):
2520
2045
"""Mandos server.
2521
2046
2522
2047
Attributes:
2523
2048
clients: set of Client objects
2524
2049
gnutls_priority GnuTLS priority string
2525
2050
use_dbus: Boolean; to emit D-Bus signals or not
2526
2527
Assumes a GLib.MainLoop event loop.
2051
2052
Assumes a gobject.MainLoop event loop.
2528
2053
"""
2529
2054
2530
2055
def __init__(self, server_address, RequestHandlerClass,
2531
2056
interface=None,
2532
2057
use_ipv6=True,
2542
2067
self.gnutls_priority = gnutls_priority
2543
2068
IPv6_TCPServer.__init__(self, server_address,
2544
2069
RequestHandlerClass,
2545
interface=interface,
2546
use_ipv6=use_ipv6,
2547
socketfd=socketfd)
2548
2070
interface = interface,
2071
use_ipv6 = use_ipv6,
2072
socketfd = socketfd)
2073
2549
2074
def server_activate(self):
2550
2075
if self.enabled:
2551
2076
return socketserver.TCPServer.server_activate(self)
2552
2077
2553
2078
def enable(self):
2554
2079
self.enabled = True
2555
2080
2556
2081
def add_pipe(self, parent_pipe, proc):
2557
2082
# Call "handle_ipc" for both data and EOF events
2558
GLib.io_add_watch(
2083
gobject.io_add_watch(
2559
2084
parent_pipe.fileno(),
2560
GLib.IO_IN | GLib.IO_HUP,
2085
gobject.IO_IN | gobject.IO_HUP,
2561
2086
functools.partial(self.handle_ipc,
2562
parent_pipe=parent_pipe,
2563
proc=proc))
2564
2087
parent_pipe = parent_pipe,
2088
proc = proc))
2089
2565
2090
def handle_ipc(self, source, condition,
2566
2091
parent_pipe=None,
2567
proc=None,
2092
proc = None,
2568
2093
client_object=None):
2569
2094
# error, or the other end of multiprocessing.Pipe has closed
2570
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2095
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2571
2096
# Wait for other process to exit
2572
2097
proc.join()
2573
2098
return False
2574
2099
2575
2100
# Read a request from the child
2576
2101
request = parent_pipe.recv()
2577
2102
command = request[0]
2578
2103
2579
2104
if command == 'init':
2580
2105
fpr = request[1]
2581
2106
address = request[2]
2582
2583
for c in self.clients.values():
2107
2108
for c in self.clients.itervalues():
2584
2109
if c.fingerprint == fpr:
2585
2110
client = c
2586
2111
break
2593
2118
address[0])
2594
2119
parent_pipe.send(False)
2595
2120
return False
2596
2597
GLib.io_add_watch(
2121
2122
gobject.io_add_watch(
2598
2123
parent_pipe.fileno(),
2599
GLib.IO_IN | GLib.IO_HUP,
2124
gobject.IO_IN | gobject.IO_HUP,
2600
2125
functools.partial(self.handle_ipc,
2601
parent_pipe=parent_pipe,
2602
proc=proc,
2603
client_object=client))
2126
parent_pipe = parent_pipe,
2127
proc = proc,
2128
client_object = client))
2604
2129
parent_pipe.send(True)
2605
2130
# remove the old hook in favor of the new above hook on
2606
2131
# same fileno
2609
2134
funcname = request[1]
2610
2135
args = request[2]
2611
2136
kwargs = request[3]
2612
2137
2613
2138
parent_pipe.send(('data', getattr(client_object,
2614
2139
funcname)(*args,
2615
2140
**kwargs)))
2616
2141
2617
2142
if command == 'getattr':
2618
2143
attrname = request[1]
2619
if isinstance(client_object.__getattribute__(attrname),
2620
collections.Callable):
2144
if callable(client_object.__getattribute__(attrname)):
2621
2145
parent_pipe.send(('function', ))
2622
2146
else:
2623
2147
parent_pipe.send((
2624
2148
'data', client_object.__getattribute__(attrname)))
2625
2149
2626
2150
if command == 'setattr':
2627
2151
attrname = request[1]
2628
2152
value = request[2]
2629
2153
setattr(client_object, attrname, value)
2630
2154
2631
2155
return True
2632
2156
2633
2157
2634
2158
def rfc3339_duration_to_delta(duration):
2635
2159
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2636
2160
2637
2161
>>> rfc3339_duration_to_delta("P7D")
2638
2162
datetime.timedelta(7)
2639
2163
>>> rfc3339_duration_to_delta("PT60S")
2649
2173
>>> rfc3339_duration_to_delta("P1DT3M20S")
2650
2174
datetime.timedelta(1, 200)
2651
2175
"""
2652
2176
2653
2177
# Parsing an RFC 3339 duration with regular expressions is not
2654
2178
# possible - there would have to be multiple places for the same
2655
2179
# values, like seconds. The current code, while more esoteric, is
2656
2180
# cleaner without depending on a parsing library. If Python had a
2657
2181
# built-in library for parsing we would use it, but we'd like to
2658
2182
# avoid excessive use of external libraries.
2659
2183
2660
2184
# New type for defining tokens, syntax, and semantics all-in-one
2185
Token = collections.namedtuple("Token",
2186
("regexp", # To match token; if
2187
# "value" is not None,
2188
# must have a "group"
2189
# containing digits
2190
"value", # datetime.timedelta or
2191
# None
2192
"followers")) # Tokens valid after
2193
# this token
2661
2194
Token = collections.namedtuple("Token", (
2662
2195
"regexp", # To match token; if "value" is not None, must have
2663
2196
# a "group" containing digits
2695
2228
frozenset((token_year, token_month,
2696
2229
token_day, token_time,
2697
2230
token_week)))
2698
# Define starting values:
2699
# Value so far
2700
value = datetime.timedelta()
2231
# Define starting values
2232
value = datetime.timedelta() # Value so far
2701
2233
found_token = None
2702
# Following valid tokens
2703
followers = frozenset((token_duration, ))
2704
# String left to parse
2705
s = duration
2234
followers = frozenset((token_duration,)) # Following valid tokens
2235
s = duration # String left to parse
2706
2236
# Loop until end token is found
2707
2237
while found_token is not token_end:
2708
2238
# Search for any currently valid tokens
2724
2254
break
2725
2255
else:
2726
2256
# No currently valid tokens were found
2727
raise ValueError("Invalid RFC 3339 duration: {!r}"
2728
.format(duration))
2257
raise ValueError("Invalid RFC 3339 duration")
2729
2258
# End token found
2730
2259
return value
2731
2260
2732
2261
2733
2262
def string_to_delta(interval):
2734
2263
"""Parse a string and return a datetime.timedelta
2735
2264
2736
2265
>>> string_to_delta('7d')
2737
2266
datetime.timedelta(7)
2738
2267
>>> string_to_delta('60s')
2746
2275
>>> string_to_delta('5m 30s')
2747
2276
datetime.timedelta(0, 330)
2748
2277
"""
2749
2278
2750
2279
try:
2751
2280
return rfc3339_duration_to_delta(interval)
2752
2281
except ValueError:
2753
2282
pass
2754
2283
2755
2284
timevalue = datetime.timedelta(0)
2756
2285
for s in interval.split():
2757
2286
try:
2775
2304
return timevalue
2776
2305
2777
2306
2778
def daemon(nochdir=False, noclose=False):
2307
def daemon(nochdir = False, noclose = False):
2779
2308
"""See daemon(3). Standard BSD Unix function.
2780
2309
2781
2310
This should really exist as os.daemon, but it doesn't (yet)."""
2782
2311
if os.fork():
2783
2312
sys.exit()
2801
2330
2802
2331
2803
2332
def main():
2804
2333
2805
2334
##################################################################
2806
2335
# Parsing of options, both command line and config file
2807
2336
2808
2337
parser = argparse.ArgumentParser()
2809
2338
parser.add_argument("-v", "--version", action="version",
2810
version="%(prog)s {}".format(version),
2339
version = "%(prog)s {}".format(version),
2811
2340
help="show version number and exit")
2812
2341
parser.add_argument("-i", "--interface", metavar="IF",
2813
2342
help="Bind to interface IF")
2849
2378
parser.add_argument("--no-zeroconf", action="store_false",
2850
2379
dest="zeroconf", help="Do not use Zeroconf",
2851
2380
default=None)
2852
2381
2853
2382
options = parser.parse_args()
2854
2383
2855
2384
if options.check:
2856
2385
import doctest
2857
2386
fail_count, test_count = doctest.testmod()
2858
2387
sys.exit(os.EX_OK if fail_count == 0 else 1)
2859
2388
2860
2389
# Default values for config file for server-global settings
2861
server_defaults = {"interface": "",
2862
"address": "",
2863
"port": "",
2864
"debug": "False",
2865
"priority":
2866
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2867
":+SIGN-DSA-SHA256",
2868
"servicename": "Mandos",
2869
"use_dbus": "True",
2870
"use_ipv6": "True",
2871
"debuglevel": "",
2872
"restore": "True",
2873
"socket": "",
2874
"statedir": "/var/lib/mandos",
2875
"foreground": "False",
2876
"zeroconf": "True",
2877
}
2878
2390
server_defaults = { "interface": "",
2391
"address": "",
2392
"port": "",
2393
"debug": "False",
2394
"priority":
2395
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2396
":+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2397
"servicename": "Mandos",
2398
"use_dbus": "True",
2399
"use_ipv6": "True",
2400
"debuglevel": "",
2401
"restore": "True",
2402
"socket": "",
2403
"statedir": "/var/lib/mandos",
2404
"foreground": "False",
2405
"zeroconf": "True",
2406
}
2407
2879
2408
# Parse config file for server-global settings
2880
2409
server_config = configparser.SafeConfigParser(server_defaults)
2881
2410
del server_defaults
2899
2428
server_settings["socket"] = os.dup(server_settings
2900
2429
["socket"])
2901
2430
del server_config
2902
2431
2903
2432
# Override the settings from the config file with command line
2904
2433
# options, if set.
2905
2434
for option in ("interface", "address", "port", "debug",
2923
2452
if server_settings["debug"]:
2924
2453
server_settings["foreground"] = True
2925
2454
# Now we have our good server settings in "server_settings"
2926
2455
2927
2456
##################################################################
2928
2457
2929
2458
if (not server_settings["zeroconf"]
2930
2459
and not (server_settings["port"]
2931
2460
or server_settings["socket"] != "")):
2932
2461
parser.error("Needs port or socket to work without Zeroconf")
2933
2462
2934
2463
# For convenience
2935
2464
debug = server_settings["debug"]
2936
2465
debuglevel = server_settings["debuglevel"]
2940
2469
stored_state_file)
2941
2470
foreground = server_settings["foreground"]
2942
2471
zeroconf = server_settings["zeroconf"]
2943
2472
2944
2473
if debug:
2945
2474
initlogger(debug, logging.DEBUG)
2946
2475
else:
2949
2478
else:
2950
2479
level = getattr(logging, debuglevel.upper())
2951
2480
initlogger(debug, level)
2952
2481
2953
2482
if server_settings["servicename"] != "Mandos":
2954
2483
syslogger.setFormatter(
2955
2484
logging.Formatter('Mandos ({}) [%(process)d]:'
2956
2485
' %(levelname)s: %(message)s'.format(
2957
2486
server_settings["servicename"])))
2958
2487
2959
2488
# Parse config file with clients
2960
2489
client_config = configparser.SafeConfigParser(Client
2961
2490
.client_defaults)
2962
2491
client_config.read(os.path.join(server_settings["configdir"],
2963
2492
"clients.conf"))
2964
2493
2965
2494
global mandos_dbus_service
2966
2495
mandos_dbus_service = None
2967
2496
2968
2497
socketfd = None
2969
2498
if server_settings["socket"] != "":
2970
2499
socketfd = server_settings["socket"]
2986
2515
except IOError as e:
2987
2516
logger.error("Could not open file %r", pidfilename,
2988
2517
exc_info=e)
2989
2990
for name, group in (("_mandos", "_mandos"),
2991
("mandos", "mandos"),
2992
("nobody", "nogroup")):
2518
2519
for name in ("_mandos", "mandos", "nobody"):
2993
2520
try:
2994
2521
uid = pwd.getpwnam(name).pw_uid
2995
gid = pwd.getpwnam(group).pw_gid
2522
gid = pwd.getpwnam(name).pw_gid
2996
2523
break
2997
2524
except KeyError:
2998
2525
continue
3002
2529
try:
3003
2530
os.setgid(gid)
3004
2531
os.setuid(uid)
3005
if debug:
3006
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3007
gid))
3008
2532
except OSError as error:
3009
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3010
.format(uid, gid, os.strerror(error.errno)))
3011
2533
if error.errno != errno.EPERM:
3012
2534
raise
3013
2535
3014
2536
if debug:
3015
2537
# Enable all possible GnuTLS debugging
3016
2538
3017
2539
# "Use a log level over 10 to enable all debugging options."
3018
2540
# - GnuTLS manual
3019
gnutls.global_set_log_level(11)
3020
3021
@gnutls.log_func
2541
gnutls.library.functions.gnutls_global_set_log_level(11)
2542
2543
@gnutls.library.types.gnutls_log_func
3022
2544
def debug_gnutls(level, string):
3023
2545
logger.debug("GnuTLS: %s", string[:-1])
3024
3025
gnutls.global_set_log_function(debug_gnutls)
3026
2546
2547
gnutls.library.functions.gnutls_global_set_log_function(
2548
debug_gnutls)
2549
3027
2550
# Redirect stdin so all checkers get /dev/null
3028
2551
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
3029
2552
os.dup2(null, sys.stdin.fileno())
3030
2553
if null > 2:
3031
2554
os.close(null)
3032
2555
3033
2556
# Need to fork before connecting to D-Bus
3034
2557
if not foreground:
3035
2558
# Close all input and output, do double fork, etc.
3036
2559
daemon()
3037
3038
# multiprocessing will use threads, so before we use GLib we need
3039
# to inform GLib that threads will be used.
3040
GLib.threads_init()
3041
2560
2561
# multiprocessing will use threads, so before we use gobject we
2562
# need to inform gobject that threads will be used.
2563
gobject.threads_init()
2564
3042
2565
global main_loop
3043
2566
# From the Avahi example code
3044
2567
DBusGMainLoop(set_as_default=True)
3045
main_loop = GLib.MainLoop()
2568
main_loop = gobject.MainLoop()
3046
2569
bus = dbus.SystemBus()
3047
2570
# End of Avahi example code
3048
2571
if use_dbus:
3061
2584
if zeroconf:
3062
2585
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3063
2586
service = AvahiServiceToSyslog(
3064
name=server_settings["servicename"],
3065
servicetype="_mandos._tcp",
3066
protocol=protocol,
3067
bus=bus)
2587
name = server_settings["servicename"],
2588
servicetype = "_mandos._tcp",
2589
protocol = protocol,
2590
bus = bus)
3068
2591
if server_settings["interface"]:
3069
2592
service.interface = if_nametoindex(
3070
2593
server_settings["interface"].encode("utf-8"))
3071
2594
3072
2595
global multiprocessing_manager
3073
2596
multiprocessing_manager = multiprocessing.Manager()
3074
2597
3075
2598
client_class = Client
3076
2599
if use_dbus:
3077
client_class = functools.partial(ClientDBus, bus=bus)
3078
2600
client_class = functools.partial(ClientDBus, bus = bus)
2601
3079
2602
client_settings = Client.config_parser(client_config)
3080
2603
old_client_settings = {}
3081
2604
clients_data = {}
3082
2605
3083
2606
# This is used to redirect stdout and stderr for checker processes
3084
2607
global wnull
3085
wnull = open(os.devnull, "w") # A writable /dev/null
2608
wnull = open(os.devnull, "w") # A writable /dev/null
3086
2609
# Only used if server is running in foreground but not in debug
3087
2610
# mode
3088
2611
if debug or not foreground:
3089
2612
wnull.close()
3090
2613
3091
2614
# Get client data and settings from last running state.
3092
2615
if server_settings["restore"]:
3093
2616
try:
3094
2617
with open(stored_state_path, "rb") as stored_state:
3095
if sys.version_info.major == 2:
3096
clients_data, old_client_settings = pickle.load(
3097
stored_state)
3098
else:
3099
bytes_clients_data, bytes_old_client_settings = (
3100
pickle.load(stored_state, encoding="bytes"))
3101
# Fix bytes to strings
3102
# clients_data
3103
# .keys()
3104
clients_data = {(key.decode("utf-8")
3105
if isinstance(key, bytes)
3106
else key): value
3107
for key, value in
3108
bytes_clients_data.items()}
3109
del bytes_clients_data
3110
for key in clients_data:
3111
value = {(k.decode("utf-8")
3112
if isinstance(k, bytes) else k): v
3113
for k, v in
3114
clients_data[key].items()}
3115
clients_data[key] = value
3116
# .client_structure
3117
value["client_structure"] = [
3118
(s.decode("utf-8")
3119
if isinstance(s, bytes)
3120
else s) for s in
3121
value["client_structure"]]
3122
# .name & .host
3123
for k in ("name", "host"):
3124
if isinstance(value[k], bytes):
3125
value[k] = value[k].decode("utf-8")
3126
# old_client_settings
3127
# .keys()
3128
old_client_settings = {
3129
(key.decode("utf-8")
3130
if isinstance(key, bytes)
3131
else key): value
3132
for key, value in
3133
bytes_old_client_settings.items()}
3134
del bytes_old_client_settings
3135
# .host
3136
for value in old_client_settings.values():
3137
if isinstance(value["host"], bytes):
3138
value["host"] = (value["host"]
3139
.decode("utf-8"))
2618
clients_data, old_client_settings = pickle.load(
2619
stored_state)
3140
2620
os.remove(stored_state_path)
3141
2621
except IOError as e:
3142
2622
if e.errno == errno.ENOENT:
3150
2630
logger.warning("Could not load persistent state: "
3151
2631
"EOFError:",
3152
2632
exc_info=e)
3153
2633
3154
2634
with PGPEngine() as pgp:
3155
2635
for client_name, client in clients_data.items():
3156
2636
# Skip removed clients
3157
2637
if client_name not in client_settings:
3158
2638
continue
3159
2639
3160
2640
# Decide which value to use after restoring saved state.
3161
2641
# We have three different values: Old config file,
3162
2642
# new config file, and saved state.
3173
2653
client[name] = value
3174
2654
except KeyError:
3175
2655
pass
3176
2656
3177
2657
# Clients who has passed its expire date can still be
3178
# enabled if its last checker was successful. A Client
2658
# enabled if its last checker was successful. Clients
3179
2659
# whose checker succeeded before we stored its state is
3180
2660
# assumed to have successfully run all checkers during
3181
2661
# downtime.
3212
2692
client_name))
3213
2693
client["secret"] = (client_settings[client_name]
3214
2694
["secret"])
3215
2695
3216
2696
# Add/remove clients based on new changes made to config
3217
2697
for client_name in (set(old_client_settings)
3218
2698
- set(client_settings)):
3220
2700
for client_name in (set(client_settings)
3221
2701
- set(old_client_settings)):
3222
2702
clients_data[client_name] = client_settings[client_name]
3223
2703
3224
2704
# Create all client objects
3225
2705
for client_name, client in clients_data.items():
3226
2706
tcp_server.clients[client_name] = client_class(
3227
name=client_name,
3228
settings=client,
3229
server_settings=server_settings)
3230
2707
name = client_name,
2708
settings = client,
2709
server_settings = server_settings)
2710
3231
2711
if not tcp_server.clients:
3232
2712
logger.warning("No clients defined")
3233
2713
3234
2714
if not foreground:
3235
2715
if pidfile is not None:
3236
2716
pid = os.getpid()
3242
2722
pidfilename, pid)
3243
2723
del pidfile
3244
2724
del pidfilename
3245
3246
for termsig in (signal.SIGHUP, signal.SIGTERM):
3247
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3248
lambda: main_loop.quit() and False)
3249
2725
2726
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2727
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2728
3250
2729
if use_dbus:
3251
2730
3252
2731
@alternate_dbus_interfaces(
3253
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3254
class MandosDBusService(DBusObjectWithObjectManager):
2732
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2733
class MandosDBusService(DBusObjectWithProperties):
3255
2734
"""A D-Bus proxy object"""
3256
2735
3257
2736
def __init__(self):
3258
2737
dbus.service.Object.__init__(self, bus, "/")
3259
2738
3260
2739
_interface = "se.recompile.Mandos"
3261
2740
2741
@dbus_interface_annotations(_interface)
2742
def _foo(self):
2743
return {
2744
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2745
"false" }
2746
3262
2747
@dbus.service.signal(_interface, signature="o")
3263
2748
def ClientAdded(self, objpath):
3264
2749
"D-Bus signal"
3265
2750
pass
3266
2751
3267
2752
@dbus.service.signal(_interface, signature="ss")
3268
2753
def ClientNotFound(self, fingerprint, address):
3269
2754
"D-Bus signal"
3270
2755
pass
3271
3272
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3273
"true"})
2756
3274
2757
@dbus.service.signal(_interface, signature="os")
3275
2758
def ClientRemoved(self, objpath, name):
3276
2759
"D-Bus signal"
3277
2760
pass
3278
3279
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3280
"true"})
2761
3281
2762
@dbus.service.method(_interface, out_signature="ao")
3282
2763
def GetAllClients(self):
3283
2764
"D-Bus method"
3284
2765
return dbus.Array(c.dbus_object_path for c in
3285
tcp_server.clients.values())
3286
3287
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3288
"true"})
2766
tcp_server.clients.itervalues())
2767
3289
2768
@dbus.service.method(_interface,
3290
2769
out_signature="a{oa{sv}}")
3291
2770
def GetAllClientsWithProperties(self):
3292
2771
"D-Bus method"
3293
2772
return dbus.Dictionary(
3294
{c.dbus_object_path: c.GetAll(
3295
"se.recompile.Mandos.Client")
3296
for c in tcp_server.clients.values()},
2773
{ c.dbus_object_path: c.GetAll("")
2774
for c in tcp_server.clients.itervalues() },
3297
2775
signature="oa{sv}")
3298
2776
3299
2777
@dbus.service.method(_interface, in_signature="o")
3300
2778
def RemoveClient(self, object_path):
3301
2779
"D-Bus method"
3302
for c in tcp_server.clients.values():
2780
for c in tcp_server.clients.itervalues():
3303
2781
if c.dbus_object_path == object_path:
3304
2782
del tcp_server.clients[c.name]
3305
2783
c.remove_from_connection()
3306
# Don't signal the disabling
2784
# Don't signal anything except ClientRemoved
3307
2785
c.disable(quiet=True)
3308
# Emit D-Bus signal for removal
3309
self.client_removed_signal(c)
2786
# Emit D-Bus signal
2787
self.ClientRemoved(object_path, c.name)
3310
2788
return
3311
2789
raise KeyError(object_path)
3312
2790
3313
2791
del _interface
3314
3315
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3316
out_signature="a{oa{sa{sv}}}")
3317
def GetManagedObjects(self):
3318
"""D-Bus method"""
3319
return dbus.Dictionary(
3320
{client.dbus_object_path:
3321
dbus.Dictionary(
3322
{interface: client.GetAll(interface)
3323
for interface in
3324
client._get_all_interface_names()})
3325
for client in tcp_server.clients.values()})
3326
3327
def client_added_signal(self, client):
3328
"""Send the new standard signal and the old signal"""
3329
if use_dbus:
3330
# New standard signal
3331
self.InterfacesAdded(
3332
client.dbus_object_path,
3333
dbus.Dictionary(
3334
{interface: client.GetAll(interface)
3335
for interface in
3336
client._get_all_interface_names()}))
3337
# Old signal
3338
self.ClientAdded(client.dbus_object_path)
3339
3340
def client_removed_signal(self, client):
3341
"""Send the new standard signal and the old signal"""
3342
if use_dbus:
3343
# New standard signal
3344
self.InterfacesRemoved(
3345
client.dbus_object_path,
3346
client._get_all_interface_names())
3347
# Old signal
3348
self.ClientRemoved(client.dbus_object_path,
3349
client.name)
3350
2792
3351
2793
mandos_dbus_service = MandosDBusService()
3352
3353
# Save modules to variables to exempt the modules from being
3354
# unloaded before the function registered with atexit() is run.
3355
mp = multiprocessing
3356
wn = wnull
3357
2794
3358
2795
def cleanup():
3359
2796
"Cleanup function; run on exit"
3360
2797
if zeroconf:
3361
2798
service.cleanup()
3362
3363
mp.active_children()
3364
wn.close()
2799
2800
multiprocessing.active_children()
2801
wnull.close()
3365
2802
if not (tcp_server.clients or client_settings):
3366
2803
return
3367
2804
3368
2805
# Store client before exiting. Secrets are encrypted with key
3369
2806
# based on what config file has. If config file is
3370
2807
# removed/edited, old secret will thus be unrecovable.
3371
2808
clients = {}
3372
2809
with PGPEngine() as pgp:
3373
for client in tcp_server.clients.values():
2810
for client in tcp_server.clients.itervalues():
3374
2811
key = client_settings[client.name]["secret"]
3375
2812
client.encrypted_secret = pgp.encrypt(client.secret,
3376
2813
key)
3377
2814
client_dict = {}
3378
2815
3379
2816
# A list of attributes that can not be pickled
3380
2817
# + secret.
3381
exclude = {"bus", "changedstate", "secret",
3382
"checker", "server_settings"}
2818
exclude = { "bus", "changedstate", "secret",
2819
"checker", "server_settings" }
3383
2820
for name, typ in inspect.getmembers(dbus.service
3384
2821
.Object):
3385
2822
exclude.add(name)
3386
2823
3387
2824
client_dict["encrypted_secret"] = (client
3388
2825
.encrypted_secret)
3389
2826
for attr in client.client_structure:
3390
2827
if attr not in exclude:
3391
2828
client_dict[attr] = getattr(client, attr)
3392
2829
3393
2830
clients[client.name] = client_dict
3394
2831
del client_settings[client.name]["secret"]
3395
2832
3396
2833
try:
3397
2834
with tempfile.NamedTemporaryFile(
3398
2835
mode='wb',
3400
2837
prefix='clients-',
3401
2838
dir=os.path.dirname(stored_state_path),
3402
2839
delete=False) as stored_state:
3403
pickle.dump((clients, client_settings), stored_state,
3404
protocol=2)
2840
pickle.dump((clients, client_settings), stored_state)
3405
2841
tempname = stored_state.name
3406
2842
os.rename(tempname, stored_state_path)
3407
2843
except (IOError, OSError) as e:
3417
2853
logger.warning("Could not save persistent state:",
3418
2854
exc_info=e)
3419
2855
raise
3420
2856
3421
2857
# Delete all clients, and settings from config
3422
2858
while tcp_server.clients:
3423
2859
name, client = tcp_server.clients.popitem()
3424
2860
if use_dbus:
3425
2861
client.remove_from_connection()
3426
# Don't signal the disabling
2862
# Don't signal anything except ClientRemoved
3427
2863
client.disable(quiet=True)
3428
# Emit D-Bus signal for removal
3429
2864
if use_dbus:
3430
mandos_dbus_service.client_removed_signal(client)
2865
# Emit D-Bus signal
2866
mandos_dbus_service.ClientRemoved(
2867
client.dbus_object_path, client.name)
3431
2868
client_settings.clear()
3432
2869
3433
2870
atexit.register(cleanup)
3434
3435
for client in tcp_server.clients.values():
2871
2872
for client in tcp_server.clients.itervalues():
3436
2873
if use_dbus:
3437
# Emit D-Bus signal for adding
3438
mandos_dbus_service.client_added_signal(client)
2874
# Emit D-Bus signal
2875
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3439
2876
# Need to initiate checking of clients
3440
2877
if client.enabled:
3441
2878
client.init_checker()
3442
2879
3443
2880
tcp_server.enable()
3444
2881
tcp_server.server_activate()
3445
2882
3446
2883
# Find out what port we got
3447
2884
if zeroconf:
3448
2885
service.port = tcp_server.socket.getsockname()[1]
3453
2890
else: # IPv4
3454
2891
logger.info("Now listening on address %r, port %d",
3455
2892
*tcp_server.socket.getsockname())
3456
3457
# service.interface = tcp_server.socket.getsockname()[3]
3458
2893
2894
#service.interface = tcp_server.socket.getsockname()[3]
2895
3459
2896
try:
3460
2897
if zeroconf:
3461
2898
# From the Avahi example code
3466
2903
cleanup()
3467
2904
sys.exit(1)
3468
2905
# End of Avahi example code
3469
3470
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3471
lambda *args, **kwargs:
3472
(tcp_server.handle_request
3473
(*args[2:], **kwargs) or True))
3474
2906
2907
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2908
lambda *args, **kwargs:
2909
(tcp_server.handle_request
2910
(*args[2:], **kwargs) or True))
2911
3475
2912
logger.debug("Starting main loop")
3476
2913
main_loop.run()
3477
2914
except AvahiError as error:
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0