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- Committer: Teddy Hogeborn
- Date: 2016-03-05 20:11:10 UTC
- Revision ID: teddy@recompile.se-20160305201110-6f7nws77k1h96e8k
errno is of type int, not error_t
* plugins.d/mandos-client.c (raise_privileges,
raise_privileges_permanently, lower_privileges,
lower_privileges_permanently, bring_up_interface,
take_down_interface, ): Change return type and all errno-containing
variables to type "int".
(get_flags): Change all errno-containing variables to type "int".
(main): Change all errno-containing variables to type "int", except
for values which are explicitly of type error_t.
* plugins.d/mandos-client.c (raise_privileges,
raise_privileges_permanently, lower_privileges,
lower_privileges_permanently, bring_up_interface,
take_down_interface, ): Change return type and all errno-containing
variables to type "int".
(get_flags): Change all errno-containing variables to type "int".
(main): Change all errno-containing variables to type "int", except
for values which are explicitly of type error_t.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- files modified:
- DBUS-API
added
removed
mandos
1
1
#!/usr/bin/python
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 © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2016 Teddy Hogeborn
15
# Copyright © 2008-2016 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
37
from future_builtins import *
42
38
43
39
try:
44
40
import SocketServer as socketserver
80
76
81
77
import dbus
82
78
import dbus.service
83
from gi.repository import GLib
79
try:
80
import gobject
81
except ImportError:
82
from gi.repository import GObject as gobject
83
import avahi
84
84
from dbus.mainloop.glib import DBusGMainLoop
85
85
import ctypes
86
86
import ctypes.util
87
87
import xml.dom.minidom
88
88
import inspect
89
89
90
# Try to find the value of SO_BINDTODEVICE:
91
90
try:
92
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
93
# newer, and it is also the most natural place for it:
94
91
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
95
92
except AttributeError:
96
93
try:
97
# This is where SO_BINDTODEVICE was up to and including Python
98
# 2.6, and also 3.2:
99
94
from IN import SO_BINDTODEVICE
100
95
except ImportError:
101
# In Python 2.7 it seems to have been removed entirely.
102
# Try running the C preprocessor:
103
try:
104
cc = subprocess.Popen(["cc", "--language=c", "-E",
105
"/dev/stdin"],
106
stdin=subprocess.PIPE,
107
stdout=subprocess.PIPE)
108
stdout = cc.communicate(
109
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
110
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
111
except (OSError, ValueError, IndexError):
112
# No value found
113
SO_BINDTODEVICE = None
96
SO_BINDTODEVICE = None
114
97
115
98
if sys.version_info.major == 2:
116
99
str = unicode
117
100
118
version = "1.7.20"
101
version = "1.7.3"
119
102
stored_state_file = "clients.pickle"
120
103
121
104
logger = logging.getLogger()
125
108
if_nametoindex = ctypes.cdll.LoadLibrary(
126
109
ctypes.util.find_library("c")).if_nametoindex
127
110
except (OSError, AttributeError):
128
111
129
112
def if_nametoindex(interface):
130
113
"Get an interface index the hard way, i.e. using fcntl()"
131
114
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
136
119
return interface_index
137
120
138
121
139
def copy_function(func):
140
"""Make a copy of a function"""
141
if sys.version_info.major == 2:
142
return types.FunctionType(func.func_code,
143
func.func_globals,
144
func.func_name,
145
func.func_defaults,
146
func.func_closure)
147
else:
148
return types.FunctionType(func.__code__,
149
func.__globals__,
150
func.__name__,
151
func.__defaults__,
152
func.__closure__)
153
154
155
122
def initlogger(debug, level=logging.WARNING):
156
123
"""init logger and add loglevel"""
157
124
158
125
global syslogger
159
126
syslogger = (logging.handlers.SysLogHandler(
160
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
161
address="/dev/log"))
127
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
128
address = "/dev/log"))
162
129
syslogger.setFormatter(logging.Formatter
163
130
('Mandos [%(process)d]: %(levelname)s:'
164
131
' %(message)s'))
165
132
logger.addHandler(syslogger)
166
133
167
134
if debug:
168
135
console = logging.StreamHandler()
169
136
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
181
148
182
149
class PGPEngine(object):
183
150
"""A simple class for OpenPGP symmetric encryption & decryption"""
184
151
185
152
def __init__(self):
186
153
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
187
154
self.gpg = "gpg"
188
155
try:
189
156
output = subprocess.check_output(["gpgconf"])
190
157
for line in output.splitlines():
191
name, text, path = line.split(b":")
158
name, text, path = line.split(":")
192
159
if name == "gpg":
193
160
self.gpg = path
194
161
break
198
165
self.gnupgargs = ['--batch',
199
166
'--homedir', self.tempdir,
200
167
'--force-mdc',
201
'--quiet']
202
# Only GPG version 1 has the --no-use-agent option.
203
if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
204
self.gnupgargs.append("--no-use-agent")
205
168
'--quiet',
169
'--no-use-agent']
170
206
171
def __enter__(self):
207
172
return self
208
173
209
174
def __exit__(self, exc_type, exc_value, traceback):
210
175
self._cleanup()
211
176
return False
212
177
213
178
def __del__(self):
214
179
self._cleanup()
215
180
216
181
def _cleanup(self):
217
182
if self.tempdir is not None:
218
183
# Delete contents of tempdir
219
184
for root, dirs, files in os.walk(self.tempdir,
220
topdown=False):
185
topdown = False):
221
186
for filename in files:
222
187
os.remove(os.path.join(root, filename))
223
188
for dirname in dirs:
225
190
# Remove tempdir
226
191
os.rmdir(self.tempdir)
227
192
self.tempdir = None
228
193
229
194
def password_encode(self, password):
230
195
# Passphrase can not be empty and can not contain newlines or
231
196
# NUL bytes. So we prefix it and hex encode it.
236
201
.replace(b"\n", b"\\n")
237
202
.replace(b"\0", b"\\x00"))
238
203
return encoded
239
204
240
205
def encrypt(self, data, password):
241
206
passphrase = self.password_encode(password)
242
207
with tempfile.NamedTemporaryFile(
247
212
'--passphrase-file',
248
213
passfile.name]
249
214
+ self.gnupgargs,
250
stdin=subprocess.PIPE,
251
stdout=subprocess.PIPE,
252
stderr=subprocess.PIPE)
253
ciphertext, err = proc.communicate(input=data)
215
stdin = subprocess.PIPE,
216
stdout = subprocess.PIPE,
217
stderr = subprocess.PIPE)
218
ciphertext, err = proc.communicate(input = data)
254
219
if proc.returncode != 0:
255
220
raise PGPError(err)
256
221
return ciphertext
257
222
258
223
def decrypt(self, data, password):
259
224
passphrase = self.password_encode(password)
260
225
with tempfile.NamedTemporaryFile(
261
dir=self.tempdir) as passfile:
226
dir = self.tempdir) as passfile:
262
227
passfile.write(passphrase)
263
228
passfile.flush()
264
229
proc = subprocess.Popen([self.gpg, '--decrypt',
265
230
'--passphrase-file',
266
231
passfile.name]
267
232
+ self.gnupgargs,
268
stdin=subprocess.PIPE,
269
stdout=subprocess.PIPE,
270
stderr=subprocess.PIPE)
271
decrypted_plaintext, err = proc.communicate(input=data)
233
stdin = subprocess.PIPE,
234
stdout = subprocess.PIPE,
235
stderr = subprocess.PIPE)
236
decrypted_plaintext, err = proc.communicate(input = data)
272
237
if proc.returncode != 0:
273
238
raise PGPError(err)
274
239
return decrypted_plaintext
275
240
276
241
277
# Pretend that we have an Avahi module
278
class Avahi(object):
279
"""This isn't so much a class as it is a module-like namespace.
280
It is instantiated once, and simulates having an Avahi module."""
281
IF_UNSPEC = -1 # avahi-common/address.h
282
PROTO_UNSPEC = -1 # avahi-common/address.h
283
PROTO_INET = 0 # avahi-common/address.h
284
PROTO_INET6 = 1 # avahi-common/address.h
285
DBUS_NAME = "org.freedesktop.Avahi"
286
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
287
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
288
DBUS_PATH_SERVER = "/"
289
290
def string_array_to_txt_array(self, t):
291
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
292
for s in t), signature="ay")
293
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
294
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
295
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
296
SERVER_INVALID = 0 # avahi-common/defs.h
297
SERVER_REGISTERING = 1 # avahi-common/defs.h
298
SERVER_RUNNING = 2 # avahi-common/defs.h
299
SERVER_COLLISION = 3 # avahi-common/defs.h
300
SERVER_FAILURE = 4 # avahi-common/defs.h
301
avahi = Avahi()
302
303
304
242
class AvahiError(Exception):
305
243
def __init__(self, value, *args, **kwargs):
306
244
self.value = value
318
256
319
257
class AvahiService(object):
320
258
"""An Avahi (Zeroconf) service.
321
259
322
260
Attributes:
323
261
interface: integer; avahi.IF_UNSPEC or an interface index.
324
262
Used to optionally bind to the specified interface.
336
274
server: D-Bus Server
337
275
bus: dbus.SystemBus()
338
276
"""
339
277
340
278
def __init__(self,
341
interface=avahi.IF_UNSPEC,
342
name=None,
343
servicetype=None,
344
port=None,
345
TXT=None,
346
domain="",
347
host="",
348
max_renames=32768,
349
protocol=avahi.PROTO_UNSPEC,
350
bus=None):
279
interface = avahi.IF_UNSPEC,
280
name = None,
281
servicetype = None,
282
port = None,
283
TXT = None,
284
domain = "",
285
host = "",
286
max_renames = 32768,
287
protocol = avahi.PROTO_UNSPEC,
288
bus = None):
351
289
self.interface = interface
352
290
self.name = name
353
291
self.type = servicetype
362
300
self.server = None
363
301
self.bus = bus
364
302
self.entry_group_state_changed_match = None
365
303
366
304
def rename(self, remove=True):
367
305
"""Derived from the Avahi example code"""
368
306
if self.rename_count >= self.max_renames:
388
326
logger.critical("D-Bus Exception", exc_info=error)
389
327
self.cleanup()
390
328
os._exit(1)
391
329
392
330
def remove(self):
393
331
"""Derived from the Avahi example code"""
394
332
if self.entry_group_state_changed_match is not None:
396
334
self.entry_group_state_changed_match = None
397
335
if self.group is not None:
398
336
self.group.Reset()
399
337
400
338
def add(self):
401
339
"""Derived from the Avahi example code"""
402
340
self.remove()
419
357
dbus.UInt16(self.port),
420
358
avahi.string_array_to_txt_array(self.TXT))
421
359
self.group.Commit()
422
360
423
361
def entry_group_state_changed(self, state, error):
424
362
"""Derived from the Avahi example code"""
425
363
logger.debug("Avahi entry group state change: %i", state)
426
364
427
365
if state == avahi.ENTRY_GROUP_ESTABLISHED:
428
366
logger.debug("Zeroconf service established.")
429
367
elif state == avahi.ENTRY_GROUP_COLLISION:
433
371
logger.critical("Avahi: Error in group state changed %s",
434
372
str(error))
435
373
raise AvahiGroupError("State changed: {!s}".format(error))
436
374
437
375
def cleanup(self):
438
376
"""Derived from the Avahi example code"""
439
377
if self.group is not None:
444
382
pass
445
383
self.group = None
446
384
self.remove()
447
385
448
386
def server_state_changed(self, state, error=None):
449
387
"""Derived from the Avahi example code"""
450
388
logger.debug("Avahi server state change: %i", state)
479
417
logger.debug("Unknown state: %r", state)
480
418
else:
481
419
logger.debug("Unknown state: %r: %r", state, error)
482
420
483
421
def activate(self):
484
422
"""Derived from the Avahi example code"""
485
423
if self.server is None:
496
434
class AvahiServiceToSyslog(AvahiService):
497
435
def rename(self, *args, **kwargs):
498
436
"""Add the new name to the syslog messages"""
499
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
437
ret = AvahiService.rename(self, *args, **kwargs)
500
438
syslogger.setFormatter(logging.Formatter(
501
439
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
502
440
.format(self.name)))
503
441
return ret
504
442
505
506
443
# Pretend that we have a GnuTLS module
507
444
class GnuTLS(object):
508
445
"""This isn't so much a class as it is a module-like namespace.
509
446
It is instantiated once, and simulates having a GnuTLS module."""
510
511
library = ctypes.util.find_library("gnutls")
512
if library is None:
513
library = ctypes.util.find_library("gnutls-deb0")
514
_library = ctypes.cdll.LoadLibrary(library)
515
del library
516
_need_version = b"3.3.0"
517
_tls_rawpk_version = b"3.6.6"
518
447
448
_library = ctypes.cdll.LoadLibrary(
449
ctypes.util.find_library("gnutls"))
450
_need_version = "3.3.0"
519
451
def __init__(self):
520
# Need to use "self" here, since this method is called before
521
# the assignment to the "gnutls" global variable happens.
522
if self.check_version(self._need_version) is None:
523
raise self.Error("Needs GnuTLS {} or later"
524
.format(self._need_version))
525
452
# Need to use class name "GnuTLS" here, since this method is
453
# called before the assignment to the "gnutls" global variable
454
# happens.
455
if GnuTLS.check_version(self._need_version) is None:
456
raise GnuTLS.Error("Needs GnuTLS {} or later"
457
.format(self._need_version))
458
526
459
# Unless otherwise indicated, the constants and types below are
527
460
# all from the gnutls/gnutls.h C header file.
528
461
529
462
# Constants
530
463
E_SUCCESS = 0
531
464
E_INTERRUPTED = -52
532
465
E_AGAIN = -28
533
466
CRT_OPENPGP = 2
534
CRT_RAWPK = 3
535
467
CLIENT = 2
536
468
SHUT_RDWR = 0
537
469
CRD_CERTIFICATE = 1
538
470
E_NO_CERTIFICATE_FOUND = -49
539
X509_FMT_DER = 0
540
NO_TICKETS = 1<<10
541
ENABLE_RAWPK = 1<<18
542
CTYPE_PEERS = 3
543
KEYID_USE_SHA256 = 1 # gnutls/x509.h
544
471
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
545
472
546
473
# Types
547
474
class session_int(ctypes.Structure):
548
475
_fields_ = []
549
476
session_t = ctypes.POINTER(session_int)
550
551
477
class certificate_credentials_st(ctypes.Structure):
552
478
_fields_ = []
553
479
certificate_credentials_t = ctypes.POINTER(
554
480
certificate_credentials_st)
555
481
certificate_type_t = ctypes.c_int
556
557
482
class datum_t(ctypes.Structure):
558
483
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
559
484
('size', ctypes.c_uint)]
560
561
485
class openpgp_crt_int(ctypes.Structure):
562
486
_fields_ = []
563
487
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
564
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
488
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
565
489
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
566
credentials_type_t = ctypes.c_int
490
credentials_type_t = ctypes.c_int #
567
491
transport_ptr_t = ctypes.c_void_p
568
492
close_request_t = ctypes.c_int
569
493
570
494
# Exceptions
571
495
class Error(Exception):
572
496
# We need to use the class name "GnuTLS" here, since this
573
497
# exception might be raised from within GnuTLS.__init__,
574
498
# which is called before the assignment to the "gnutls"
575
499
# global variable has happened.
576
def __init__(self, message=None, code=None, args=()):
500
def __init__(self, message = None, code = None, args=()):
577
501
# Default usage is by a message string, but if a return
578
502
# code is passed, convert it to a string with
579
503
# gnutls.strerror()
582
506
message = GnuTLS.strerror(code)
583
507
return super(GnuTLS.Error, self).__init__(
584
508
message, *args)
585
509
586
510
class CertificateSecurityError(Error):
587
511
pass
588
512
589
513
# Classes
590
514
class Credentials(object):
591
515
def __init__(self):
593
517
gnutls.certificate_allocate_credentials(
594
518
ctypes.byref(self._c_object))
595
519
self.type = gnutls.CRD_CERTIFICATE
596
520
597
521
def __del__(self):
598
522
gnutls.certificate_free_credentials(self._c_object)
599
523
600
524
class ClientSession(object):
601
def __init__(self, socket, credentials=None):
525
def __init__(self, socket, credentials = None):
602
526
self._c_object = gnutls.session_t()
603
gnutls_flags = gnutls.CLIENT
604
if gnutls.check_version("3.5.6"):
605
gnutls_flags |= gnutls.NO_TICKETS
606
if gnutls.has_rawpk:
607
gnutls_flags |= gnutls.ENABLE_RAWPK
608
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
609
del gnutls_flags
527
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
610
528
gnutls.set_default_priority(self._c_object)
611
529
gnutls.transport_set_ptr(self._c_object, socket.fileno())
612
530
gnutls.handshake_set_private_extensions(self._c_object,
618
536
ctypes.cast(credentials._c_object,
619
537
ctypes.c_void_p))
620
538
self.credentials = credentials
621
539
622
540
def __del__(self):
623
541
gnutls.deinit(self._c_object)
624
542
625
543
def handshake(self):
626
544
return gnutls.handshake(self._c_object)
627
545
628
546
def send(self, data):
629
547
data = bytes(data)
630
548
data_len = len(data)
632
550
data_len -= gnutls.record_send(self._c_object,
633
551
data[-data_len:],
634
552
data_len)
635
553
636
554
def bye(self):
637
555
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
638
556
639
557
# Error handling functions
640
558
def _error_code(result):
641
559
"""A function to raise exceptions on errors, suitable
643
561
if result >= 0:
644
562
return result
645
563
if result == gnutls.E_NO_CERTIFICATE_FOUND:
646
raise gnutls.CertificateSecurityError(code=result)
647
raise gnutls.Error(code=result)
648
564
raise gnutls.CertificateSecurityError(code = result)
565
raise gnutls.Error(code = result)
566
649
567
def _retry_on_error(result, func, arguments):
650
568
"""A function to retry on some errors, suitable
651
569
for the 'errcheck' attribute on ctypes functions"""
654
572
return _error_code(result)
655
573
result = func(*arguments)
656
574
return result
657
575
658
576
# Unless otherwise indicated, the function declarations below are
659
577
# all from the gnutls/gnutls.h C header file.
660
578
661
579
# Functions
662
580
priority_set_direct = _library.gnutls_priority_set_direct
663
581
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
664
582
ctypes.POINTER(ctypes.c_char_p)]
665
583
priority_set_direct.restype = _error_code
666
584
667
585
init = _library.gnutls_init
668
586
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
669
587
init.restype = _error_code
670
588
671
589
set_default_priority = _library.gnutls_set_default_priority
672
590
set_default_priority.argtypes = [session_t]
673
591
set_default_priority.restype = _error_code
674
592
675
593
record_send = _library.gnutls_record_send
676
594
record_send.argtypes = [session_t, ctypes.c_void_p,
677
595
ctypes.c_size_t]
678
596
record_send.restype = ctypes.c_ssize_t
679
597
record_send.errcheck = _retry_on_error
680
598
681
599
certificate_allocate_credentials = (
682
600
_library.gnutls_certificate_allocate_credentials)
683
601
certificate_allocate_credentials.argtypes = [
684
602
ctypes.POINTER(certificate_credentials_t)]
685
603
certificate_allocate_credentials.restype = _error_code
686
604
687
605
certificate_free_credentials = (
688
606
_library.gnutls_certificate_free_credentials)
689
certificate_free_credentials.argtypes = [
690
certificate_credentials_t]
607
certificate_free_credentials.argtypes = [certificate_credentials_t]
691
608
certificate_free_credentials.restype = None
692
609
693
610
handshake_set_private_extensions = (
694
611
_library.gnutls_handshake_set_private_extensions)
695
612
handshake_set_private_extensions.argtypes = [session_t,
696
613
ctypes.c_int]
697
614
handshake_set_private_extensions.restype = None
698
615
699
616
credentials_set = _library.gnutls_credentials_set
700
617
credentials_set.argtypes = [session_t, credentials_type_t,
701
618
ctypes.c_void_p]
702
619
credentials_set.restype = _error_code
703
620
704
621
strerror = _library.gnutls_strerror
705
622
strerror.argtypes = [ctypes.c_int]
706
623
strerror.restype = ctypes.c_char_p
707
624
708
625
certificate_type_get = _library.gnutls_certificate_type_get
709
626
certificate_type_get.argtypes = [session_t]
710
627
certificate_type_get.restype = _error_code
711
628
712
629
certificate_get_peers = _library.gnutls_certificate_get_peers
713
630
certificate_get_peers.argtypes = [session_t,
714
631
ctypes.POINTER(ctypes.c_uint)]
715
632
certificate_get_peers.restype = ctypes.POINTER(datum_t)
716
633
717
634
global_set_log_level = _library.gnutls_global_set_log_level
718
635
global_set_log_level.argtypes = [ctypes.c_int]
719
636
global_set_log_level.restype = None
720
637
721
638
global_set_log_function = _library.gnutls_global_set_log_function
722
639
global_set_log_function.argtypes = [log_func]
723
640
global_set_log_function.restype = None
724
641
725
642
deinit = _library.gnutls_deinit
726
643
deinit.argtypes = [session_t]
727
644
deinit.restype = None
728
645
729
646
handshake = _library.gnutls_handshake
730
647
handshake.argtypes = [session_t]
731
648
handshake.restype = _error_code
732
649
handshake.errcheck = _retry_on_error
733
650
734
651
transport_set_ptr = _library.gnutls_transport_set_ptr
735
652
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
736
653
transport_set_ptr.restype = None
737
654
738
655
bye = _library.gnutls_bye
739
656
bye.argtypes = [session_t, close_request_t]
740
657
bye.restype = _error_code
741
658
bye.errcheck = _retry_on_error
742
659
743
660
check_version = _library.gnutls_check_version
744
661
check_version.argtypes = [ctypes.c_char_p]
745
662
check_version.restype = ctypes.c_char_p
746
747
has_rawpk = bool(check_version(_tls_rawpk_version))
748
749
if has_rawpk:
750
# Types
751
class pubkey_st(ctypes.Structure):
752
_fields = []
753
pubkey_t = ctypes.POINTER(pubkey_st)
754
755
x509_crt_fmt_t = ctypes.c_int
756
757
# All the function declarations below are from gnutls/abstract.h
758
pubkey_init = _library.gnutls_pubkey_init
759
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
760
pubkey_init.restype = _error_code
761
762
pubkey_import = _library.gnutls_pubkey_import
763
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
764
x509_crt_fmt_t]
765
pubkey_import.restype = _error_code
766
767
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
768
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
769
ctypes.POINTER(ctypes.c_ubyte),
770
ctypes.POINTER(ctypes.c_size_t)]
771
pubkey_get_key_id.restype = _error_code
772
773
pubkey_deinit = _library.gnutls_pubkey_deinit
774
pubkey_deinit.argtypes = [pubkey_t]
775
pubkey_deinit.restype = None
776
else:
777
# All the function declarations below are from gnutls/openpgp.h
778
779
openpgp_crt_init = _library.gnutls_openpgp_crt_init
780
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
781
openpgp_crt_init.restype = _error_code
782
783
openpgp_crt_import = _library.gnutls_openpgp_crt_import
784
openpgp_crt_import.argtypes = [openpgp_crt_t,
785
ctypes.POINTER(datum_t),
786
openpgp_crt_fmt_t]
787
openpgp_crt_import.restype = _error_code
788
789
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
790
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
791
ctypes.POINTER(ctypes.c_uint)]
792
openpgp_crt_verify_self.restype = _error_code
793
794
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
795
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
796
openpgp_crt_deinit.restype = None
797
798
openpgp_crt_get_fingerprint = (
799
_library.gnutls_openpgp_crt_get_fingerprint)
800
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
801
ctypes.c_void_p,
802
ctypes.POINTER(
803
ctypes.c_size_t)]
804
openpgp_crt_get_fingerprint.restype = _error_code
805
806
if check_version("3.6.4"):
807
certificate_type_get2 = _library.gnutls_certificate_type_get2
808
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
809
certificate_type_get2.restype = _error_code
810
663
664
# All the function declarations below are from gnutls/openpgp.h
665
666
openpgp_crt_init = _library.gnutls_openpgp_crt_init
667
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
668
openpgp_crt_init.restype = _error_code
669
670
openpgp_crt_import = _library.gnutls_openpgp_crt_import
671
openpgp_crt_import.argtypes = [openpgp_crt_t,
672
ctypes.POINTER(datum_t),
673
openpgp_crt_fmt_t]
674
openpgp_crt_import.restype = _error_code
675
676
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
677
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
678
ctypes.POINTER(ctypes.c_uint)]
679
openpgp_crt_verify_self.restype = _error_code
680
681
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
682
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
683
openpgp_crt_deinit.restype = None
684
685
openpgp_crt_get_fingerprint = (
686
_library.gnutls_openpgp_crt_get_fingerprint)
687
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
688
ctypes.c_void_p,
689
ctypes.POINTER(
690
ctypes.c_size_t)]
691
openpgp_crt_get_fingerprint.restype = _error_code
692
811
693
# Remove non-public functions
812
694
del _error_code, _retry_on_error
813
695
# Create the global "gnutls" object, simulating a module
814
696
gnutls = GnuTLS()
815
697
816
817
698
def call_pipe(connection, # : multiprocessing.Connection
818
699
func, *args, **kwargs):
819
700
"""This function is meant to be called by multiprocessing.Process
820
701
821
702
This function runs func(*args, **kwargs), and writes the resulting
822
703
return value on the provided multiprocessing.Connection.
823
704
"""
824
705
connection.send(func(*args, **kwargs))
825
706
connection.close()
826
707
827
828
708
class Client(object):
829
709
"""A representation of a client host served by this server.
830
710
831
711
Attributes:
832
712
approved: bool(); 'None' if not yet approved/disapproved
833
713
approval_delay: datetime.timedelta(); Time to wait for approval
835
715
checker: subprocess.Popen(); a running checker process used
836
716
to see if the client lives.
837
717
'None' if no process is running.
838
checker_callback_tag: a GLib event source tag, or None
718
checker_callback_tag: a gobject event source tag, or None
839
719
checker_command: string; External command which is run to check
840
720
if client lives. %() expansions are done at
841
721
runtime with vars(self) as dict, so that for
842
722
instance %(name)s can be used in the command.
843
checker_initiator_tag: a GLib event source tag, or None
723
checker_initiator_tag: a gobject event source tag, or None
844
724
created: datetime.datetime(); (UTC) object creation
845
725
client_structure: Object describing what attributes a client has
846
726
and is used for storing the client at exit
847
727
current_checker_command: string; current running checker_command
848
disable_initiator_tag: a GLib event source tag, or None
728
disable_initiator_tag: a gobject event source tag, or None
849
729
enabled: bool()
850
730
fingerprint: string (40 or 32 hexadecimal digits); used to
851
uniquely identify an OpenPGP client
852
key_id: string (64 hexadecimal digits); used to uniquely identify
853
a client using raw public keys
731
uniquely identify the client
854
732
host: string; available for use by the checker command
855
733
interval: datetime.timedelta(); How often to start a new checker
856
734
last_approval_request: datetime.datetime(); (UTC) or None
872
750
disabled, or None
873
751
server_settings: The server_settings dict from main()
874
752
"""
875
753
876
754
runtime_expansions = ("approval_delay", "approval_duration",
877
"created", "enabled", "expires", "key_id",
755
"created", "enabled", "expires",
878
756
"fingerprint", "host", "interval",
879
757
"last_approval_request", "last_checked_ok",
880
758
"last_enabled", "name", "timeout")
889
767
"approved_by_default": "True",
890
768
"enabled": "True",
891
769
}
892
770
893
771
@staticmethod
894
772
def config_parser(config):
895
773
"""Construct a new dict of client settings of this form:
902
780
for client_name in config.sections():
903
781
section = dict(config.items(client_name))
904
782
client = settings[client_name] = {}
905
783
906
784
client["host"] = section["host"]
907
785
# Reformat values from string types to Python types
908
786
client["approved_by_default"] = config.getboolean(
909
787
client_name, "approved_by_default")
910
788
client["enabled"] = config.getboolean(client_name,
911
789
"enabled")
912
913
# Uppercase and remove spaces from key_id and fingerprint
914
# for later comparison purposes with return value from the
915
# key_id() and fingerprint() functions
916
client["key_id"] = (section.get("key_id", "").upper()
917
.replace(" ", ""))
790
791
# Uppercase and remove spaces from fingerprint for later
792
# comparison purposes with return value from the
793
# fingerprint() function
918
794
client["fingerprint"] = (section["fingerprint"].upper()
919
795
.replace(" ", ""))
920
796
if "secret" in section:
921
client["secret"] = codecs.decode(section["secret"]
922
.encode("utf-8"),
923
"base64")
797
client["secret"] = section["secret"].decode("base64")
924
798
elif "secfile" in section:
925
799
with open(os.path.expanduser(os.path.expandvars
926
800
(section["secfile"])),
941
815
client["last_approval_request"] = None
942
816
client["last_checked_ok"] = None
943
817
client["last_checker_status"] = -2
944
818
945
819
return settings
946
947
def __init__(self, settings, name=None, server_settings=None):
820
821
def __init__(self, settings, name = None, server_settings=None):
948
822
self.name = name
949
823
if server_settings is None:
950
824
server_settings = {}
952
826
# adding all client settings
953
827
for setting, value in settings.items():
954
828
setattr(self, setting, value)
955
829
956
830
if self.enabled:
957
831
if not hasattr(self, "last_enabled"):
958
832
self.last_enabled = datetime.datetime.utcnow()
962
836
else:
963
837
self.last_enabled = None
964
838
self.expires = None
965
839
966
840
logger.debug("Creating client %r", self.name)
967
logger.debug(" Key ID: %s", self.key_id)
968
841
logger.debug(" Fingerprint: %s", self.fingerprint)
969
842
self.created = settings.get("created",
970
843
datetime.datetime.utcnow())
971
844
972
845
# attributes specific for this server instance
973
846
self.checker = None
974
847
self.checker_initiator_tag = None
980
853
self.changedstate = multiprocessing_manager.Condition(
981
854
multiprocessing_manager.Lock())
982
855
self.client_structure = [attr
983
for attr in self.__dict__.keys()
856
for attr in self.__dict__.iterkeys()
984
857
if not attr.startswith("_")]
985
858
self.client_structure.append("client_structure")
986
859
987
860
for name, t in inspect.getmembers(
988
861
type(self), lambda obj: isinstance(obj, property)):
989
862
if not name.startswith("_"):
990
863
self.client_structure.append(name)
991
864
992
865
# Send notice to process children that client state has changed
993
866
def send_changedstate(self):
994
867
with self.changedstate:
995
868
self.changedstate.notify_all()
996
869
997
870
def enable(self):
998
871
"""Start this client's checker and timeout hooks"""
999
872
if getattr(self, "enabled", False):
1004
877
self.last_enabled = datetime.datetime.utcnow()
1005
878
self.init_checker()
1006
879
self.send_changedstate()
1007
880
1008
881
def disable(self, quiet=True):
1009
882
"""Disable this client."""
1010
883
if not getattr(self, "enabled", False):
1012
885
if not quiet:
1013
886
logger.info("Disabling client %s", self.name)
1014
887
if getattr(self, "disable_initiator_tag", None) is not None:
1015
GLib.source_remove(self.disable_initiator_tag)
888
gobject.source_remove(self.disable_initiator_tag)
1016
889
self.disable_initiator_tag = None
1017
890
self.expires = None
1018
891
if getattr(self, "checker_initiator_tag", None) is not None:
1019
GLib.source_remove(self.checker_initiator_tag)
892
gobject.source_remove(self.checker_initiator_tag)
1020
893
self.checker_initiator_tag = None
1021
894
self.stop_checker()
1022
895
self.enabled = False
1023
896
if not quiet:
1024
897
self.send_changedstate()
1025
# Do not run this again if called by a GLib.timeout_add
898
# Do not run this again if called by a gobject.timeout_add
1026
899
return False
1027
900
1028
901
def __del__(self):
1029
902
self.disable()
1030
903
1031
904
def init_checker(self):
1032
905
# Schedule a new checker to be started an 'interval' from now,
1033
906
# and every interval from then on.
1034
907
if self.checker_initiator_tag is not None:
1035
GLib.source_remove(self.checker_initiator_tag)
1036
self.checker_initiator_tag = GLib.timeout_add(
908
gobject.source_remove(self.checker_initiator_tag)
909
self.checker_initiator_tag = gobject.timeout_add(
1037
910
int(self.interval.total_seconds() * 1000),
1038
911
self.start_checker)
1039
912
# Schedule a disable() when 'timeout' has passed
1040
913
if self.disable_initiator_tag is not None:
1041
GLib.source_remove(self.disable_initiator_tag)
1042
self.disable_initiator_tag = GLib.timeout_add(
914
gobject.source_remove(self.disable_initiator_tag)
915
self.disable_initiator_tag = gobject.timeout_add(
1043
916
int(self.timeout.total_seconds() * 1000), self.disable)
1044
917
# Also start a new checker *right now*.
1045
918
self.start_checker()
1046
919
1047
920
def checker_callback(self, source, condition, connection,
1048
921
command):
1049
922
"""The checker has completed, so take appropriate actions."""
1052
925
# Read return code from connection (see call_pipe)
1053
926
returncode = connection.recv()
1054
927
connection.close()
1055
928
1056
929
if returncode >= 0:
1057
930
self.last_checker_status = returncode
1058
931
self.last_checker_signal = None
1068
941
logger.warning("Checker for %(name)s crashed?",
1069
942
vars(self))
1070
943
return False
1071
944
1072
945
def checked_ok(self):
1073
946
"""Assert that the client has been seen, alive and well."""
1074
947
self.last_checked_ok = datetime.datetime.utcnow()
1075
948
self.last_checker_status = 0
1076
949
self.last_checker_signal = None
1077
950
self.bump_timeout()
1078
951
1079
952
def bump_timeout(self, timeout=None):
1080
953
"""Bump up the timeout for this client."""
1081
954
if timeout is None:
1082
955
timeout = self.timeout
1083
956
if self.disable_initiator_tag is not None:
1084
GLib.source_remove(self.disable_initiator_tag)
957
gobject.source_remove(self.disable_initiator_tag)
1085
958
self.disable_initiator_tag = None
1086
959
if getattr(self, "enabled", False):
1087
self.disable_initiator_tag = GLib.timeout_add(
960
self.disable_initiator_tag = gobject.timeout_add(
1088
961
int(timeout.total_seconds() * 1000), self.disable)
1089
962
self.expires = datetime.datetime.utcnow() + timeout
1090
963
1091
964
def need_approval(self):
1092
965
self.last_approval_request = datetime.datetime.utcnow()
1093
966
1094
967
def start_checker(self):
1095
968
"""Start a new checker subprocess if one is not running.
1096
969
1097
970
If a checker already exists, leave it running and do
1098
971
nothing."""
1099
972
# The reason for not killing a running checker is that if we
1104
977
# checkers alone, the checker would have to take more time
1105
978
# than 'timeout' for the client to be disabled, which is as it
1106
979
# should be.
1107
980
1108
981
if self.checker is not None and not self.checker.is_alive():
1109
982
logger.warning("Checker was not alive; joining")
1110
983
self.checker.join()
1114
987
# Escape attributes for the shell
1115
988
escaped_attrs = {
1116
989
attr: re.escape(str(getattr(self, attr)))
1117
for attr in self.runtime_expansions}
990
for attr in self.runtime_expansions }
1118
991
try:
1119
992
command = self.checker_command % escaped_attrs
1120
993
except TypeError as error:
1132
1005
# The exception is when not debugging but nevertheless
1133
1006
# running in the foreground; use the previously
1134
1007
# created wnull.
1135
popen_args = {"close_fds": True,
1136
"shell": True,
1137
"cwd": "/"}
1008
popen_args = { "close_fds": True,
1009
"shell": True,
1010
"cwd": "/" }
1138
1011
if (not self.server_settings["debug"]
1139
1012
and self.server_settings["foreground"]):
1140
1013
popen_args.update({"stdout": wnull,
1141
"stderr": wnull})
1142
pipe = multiprocessing.Pipe(duplex=False)
1014
"stderr": wnull })
1015
pipe = multiprocessing.Pipe(duplex = False)
1143
1016
self.checker = multiprocessing.Process(
1144
target=call_pipe,
1145
args=(pipe[1], subprocess.call, command),
1146
kwargs=popen_args)
1017
target = call_pipe,
1018
args = (pipe[1], subprocess.call, command),
1019
kwargs = popen_args)
1147
1020
self.checker.start()
1148
self.checker_callback_tag = GLib.io_add_watch(
1149
pipe[0].fileno(), GLib.IO_IN,
1021
self.checker_callback_tag = gobject.io_add_watch(
1022
pipe[0].fileno(), gobject.IO_IN,
1150
1023
self.checker_callback, pipe[0], command)
1151
# Re-run this periodically if run by GLib.timeout_add
1024
# Re-run this periodically if run by gobject.timeout_add
1152
1025
return True
1153
1026
1154
1027
def stop_checker(self):
1155
1028
"""Force the checker process, if any, to stop."""
1156
1029
if self.checker_callback_tag:
1157
GLib.source_remove(self.checker_callback_tag)
1030
gobject.source_remove(self.checker_callback_tag)
1158
1031
self.checker_callback_tag = None
1159
1032
if getattr(self, "checker", None) is None:
1160
1033
return
1169
1042
byte_arrays=False):
1170
1043
"""Decorators for marking methods of a DBusObjectWithProperties to
1171
1044
become properties on the D-Bus.
1172
1045
1173
1046
The decorated method will be called with no arguments by "Get"
1174
1047
and with one argument by "Set".
1175
1048
1176
1049
The parameters, where they are supported, are the same as
1177
1050
dbus.service.method, except there is only "signature", since the
1178
1051
type from Get() and the type sent to Set() is the same.
1182
1055
if byte_arrays and signature != "ay":
1183
1056
raise ValueError("Byte arrays not supported for non-'ay'"
1184
1057
" signature {!r}".format(signature))
1185
1058
1186
1059
def decorator(func):
1187
1060
func._dbus_is_property = True
1188
1061
func._dbus_interface = dbus_interface
1191
1064
func._dbus_name = func.__name__
1192
1065
if func._dbus_name.endswith("_dbus_property"):
1193
1066
func._dbus_name = func._dbus_name[:-14]
1194
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1067
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1195
1068
return func
1196
1069
1197
1070
return decorator
1198
1071
1199
1072
1200
1073
def dbus_interface_annotations(dbus_interface):
1201
1074
"""Decorator for marking functions returning interface annotations
1202
1075
1203
1076
Usage:
1204
1077
1205
1078
@dbus_interface_annotations("org.example.Interface")
1206
1079
def _foo(self): # Function name does not matter
1207
1080
return {"org.freedesktop.DBus.Deprecated": "true",
1208
1081
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1209
1082
"false"}
1210
1083
"""
1211
1084
1212
1085
def decorator(func):
1213
1086
func._dbus_is_interface = True
1214
1087
func._dbus_interface = dbus_interface
1215
1088
func._dbus_name = dbus_interface
1216
1089
return func
1217
1090
1218
1091
return decorator
1219
1092
1220
1093
1221
1094
def dbus_annotations(annotations):
1222
1095
"""Decorator to annotate D-Bus methods, signals or properties
1223
1096
Usage:
1224
1097
1225
1098
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1226
1099
"org.freedesktop.DBus.Property."
1227
1100
"EmitsChangedSignal": "false"})
1229
1102
access="r")
1230
1103
def Property_dbus_property(self):
1231
1104
return dbus.Boolean(False)
1232
1105
1233
1106
See also the DBusObjectWithAnnotations class.
1234
1107
"""
1235
1108
1236
1109
def decorator(func):
1237
1110
func._dbus_annotations = annotations
1238
1111
return func
1239
1112
1240
1113
return decorator
1241
1114
1242
1115
1260
1133
1261
1134
class DBusObjectWithAnnotations(dbus.service.Object):
1262
1135
"""A D-Bus object with annotations.
1263
1136
1264
1137
Classes inheriting from this can use the dbus_annotations
1265
1138
decorator to add annotations to methods or signals.
1266
1139
"""
1267
1140
1268
1141
@staticmethod
1269
1142
def _is_dbus_thing(thing):
1270
1143
"""Returns a function testing if an attribute is a D-Bus thing
1271
1144
1272
1145
If called like _is_dbus_thing("method") it returns a function
1273
1146
suitable for use as predicate to inspect.getmembers().
1274
1147
"""
1275
1148
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1276
1149
False)
1277
1150
1278
1151
def _get_all_dbus_things(self, thing):
1279
1152
"""Returns a generator of (name, attribute) pairs
1280
1153
"""
1283
1156
for cls in self.__class__.__mro__
1284
1157
for name, athing in
1285
1158
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1286
1159
1287
1160
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1288
out_signature="s",
1289
path_keyword='object_path',
1290
connection_keyword='connection')
1161
out_signature = "s",
1162
path_keyword = 'object_path',
1163
connection_keyword = 'connection')
1291
1164
def Introspect(self, object_path, connection):
1292
1165
"""Overloading of standard D-Bus method.
1293
1166
1294
1167
Inserts annotation tags on methods and signals.
1295
1168
"""
1296
1169
xmlstring = dbus.service.Object.Introspect(self, object_path,
1297
1170
connection)
1298
1171
try:
1299
1172
document = xml.dom.minidom.parseString(xmlstring)
1300
1173
1301
1174
for if_tag in document.getElementsByTagName("interface"):
1302
1175
# Add annotation tags
1303
1176
for typ in ("method", "signal"):
1330
1203
if_tag.appendChild(ann_tag)
1331
1204
# Fix argument name for the Introspect method itself
1332
1205
if (if_tag.getAttribute("name")
1333
== dbus.INTROSPECTABLE_IFACE):
1206
== dbus.INTROSPECTABLE_IFACE):
1334
1207
for cn in if_tag.getElementsByTagName("method"):
1335
1208
if cn.getAttribute("name") == "Introspect":
1336
1209
for arg in cn.getElementsByTagName("arg"):
1349
1222
1350
1223
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1351
1224
"""A D-Bus object with properties.
1352
1225
1353
1226
Classes inheriting from this can use the dbus_service_property
1354
1227
decorator to expose methods as D-Bus properties. It exposes the
1355
1228
standard Get(), Set(), and GetAll() methods on the D-Bus.
1356
1229
"""
1357
1230
1358
1231
def _get_dbus_property(self, interface_name, property_name):
1359
1232
"""Returns a bound method if one exists which is a D-Bus
1360
1233
property with the specified name and interface.
1365
1238
if (value._dbus_name == property_name
1366
1239
and value._dbus_interface == interface_name):
1367
1240
return value.__get__(self)
1368
1241
1369
1242
# No such property
1370
1243
raise DBusPropertyNotFound("{}:{}.{}".format(
1371
1244
self.dbus_object_path, interface_name, property_name))
1372
1245
1373
1246
@classmethod
1374
1247
def _get_all_interface_names(cls):
1375
1248
"""Get a sequence of all interfaces supported by an object"""
1378
1251
for x in (inspect.getmro(cls))
1379
1252
for attr in dir(x))
1380
1253
if name is not None)
1381
1254
1382
1255
@dbus.service.method(dbus.PROPERTIES_IFACE,
1383
1256
in_signature="ss",
1384
1257
out_signature="v")
1392
1265
if not hasattr(value, "variant_level"):
1393
1266
return value
1394
1267
return type(value)(value, variant_level=value.variant_level+1)
1395
1268
1396
1269
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1397
1270
def Set(self, interface_name, property_name, value):
1398
1271
"""Standard D-Bus property Set() method, see D-Bus standard.
1410
1283
value = dbus.ByteArray(b''.join(chr(byte)
1411
1284
for byte in value))
1412
1285
prop(value)
1413
1286
1414
1287
@dbus.service.method(dbus.PROPERTIES_IFACE,
1415
1288
in_signature="s",
1416
1289
out_signature="a{sv}")
1417
1290
def GetAll(self, interface_name):
1418
1291
"""Standard D-Bus property GetAll() method, see D-Bus
1419
1292
standard.
1420
1293
1421
1294
Note: Will not include properties with access="write".
1422
1295
"""
1423
1296
properties = {}
1434
1307
properties[name] = value
1435
1308
continue
1436
1309
properties[name] = type(value)(
1437
value, variant_level=value.variant_level + 1)
1310
value, variant_level = value.variant_level + 1)
1438
1311
return dbus.Dictionary(properties, signature="sv")
1439
1312
1440
1313
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1441
1314
def PropertiesChanged(self, interface_name, changed_properties,
1442
1315
invalidated_properties):
1444
1317
standard.
1445
1318
"""
1446
1319
pass
1447
1320
1448
1321
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1449
1322
out_signature="s",
1450
1323
path_keyword='object_path',
1451
1324
connection_keyword='connection')
1452
1325
def Introspect(self, object_path, connection):
1453
1326
"""Overloading of standard D-Bus method.
1454
1327
1455
1328
Inserts property tags and interface annotation tags.
1456
1329
"""
1457
1330
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1459
1332
connection)
1460
1333
try:
1461
1334
document = xml.dom.minidom.parseString(xmlstring)
1462
1335
1463
1336
def make_tag(document, name, prop):
1464
1337
e = document.createElement("property")
1465
1338
e.setAttribute("name", name)
1466
1339
e.setAttribute("type", prop._dbus_signature)
1467
1340
e.setAttribute("access", prop._dbus_access)
1468
1341
return e
1469
1342
1470
1343
for if_tag in document.getElementsByTagName("interface"):
1471
1344
# Add property tags
1472
1345
for tag in (make_tag(document, name, prop)
1514
1387
exc_info=error)
1515
1388
return xmlstring
1516
1389
1517
1518
1390
try:
1519
1391
dbus.OBJECT_MANAGER_IFACE
1520
1392
except AttributeError:
1521
1393
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1522
1394
1523
1524
1395
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1525
1396
"""A D-Bus object with an ObjectManager.
1526
1397
1527
1398
Classes inheriting from this exposes the standard
1528
1399
GetManagedObjects call and the InterfacesAdded and
1529
1400
InterfacesRemoved signals on the standard
1530
1401
"org.freedesktop.DBus.ObjectManager" interface.
1531
1402
1532
1403
Note: No signals are sent automatically; they must be sent
1533
1404
manually.
1534
1405
"""
1535
1406
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1536
out_signature="a{oa{sa{sv}}}")
1407
out_signature = "a{oa{sa{sv}}}")
1537
1408
def GetManagedObjects(self):
1538
1409
"""This function must be overridden"""
1539
1410
raise NotImplementedError()
1540
1411
1541
1412
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1542
signature="oa{sa{sv}}")
1413
signature = "oa{sa{sv}}")
1543
1414
def InterfacesAdded(self, object_path, interfaces_and_properties):
1544
1415
pass
1545
1546
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1416
1417
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1547
1418
def InterfacesRemoved(self, object_path, interfaces):
1548
1419
pass
1549
1420
1550
1421
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1551
out_signature="s",
1552
path_keyword='object_path',
1553
connection_keyword='connection')
1422
out_signature = "s",
1423
path_keyword = 'object_path',
1424
connection_keyword = 'connection')
1554
1425
def Introspect(self, object_path, connection):
1555
1426
"""Overloading of standard D-Bus method.
1556
1427
1557
1428
Override return argument name of GetManagedObjects to be
1558
1429
"objpath_interfaces_and_properties"
1559
1430
"""
1562
1433
connection)
1563
1434
try:
1564
1435
document = xml.dom.minidom.parseString(xmlstring)
1565
1436
1566
1437
for if_tag in document.getElementsByTagName("interface"):
1567
1438
# Fix argument name for the GetManagedObjects method
1568
1439
if (if_tag.getAttribute("name")
1569
== dbus.OBJECT_MANAGER_IFACE):
1440
== dbus.OBJECT_MANAGER_IFACE):
1570
1441
for cn in if_tag.getElementsByTagName("method"):
1571
1442
if (cn.getAttribute("name")
1572
1443
== "GetManagedObjects"):
1582
1453
except (AttributeError, xml.dom.DOMException,
1583
1454
xml.parsers.expat.ExpatError) as error:
1584
1455
logger.error("Failed to override Introspection method",
1585
exc_info=error)
1456
exc_info = error)
1586
1457
return xmlstring
1587
1458
1588
1589
1459
def datetime_to_dbus(dt, variant_level=0):
1590
1460
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1591
1461
if dt is None:
1592
return dbus.String("", variant_level=variant_level)
1462
return dbus.String("", variant_level = variant_level)
1593
1463
return dbus.String(dt.isoformat(), variant_level=variant_level)
1594
1464
1595
1465
1598
1468
dbus.service.Object, it will add alternate D-Bus attributes with
1599
1469
interface names according to the "alt_interface_names" mapping.
1600
1470
Usage:
1601
1471
1602
1472
@alternate_dbus_interfaces({"org.example.Interface":
1603
1473
"net.example.AlternateInterface"})
1604
1474
class SampleDBusObject(dbus.service.Object):
1605
1475
@dbus.service.method("org.example.Interface")
1606
1476
def SampleDBusMethod():
1607
1477
pass
1608
1478
1609
1479
The above "SampleDBusMethod" on "SampleDBusObject" will be
1610
1480
reachable via two interfaces: "org.example.Interface" and
1611
1481
"net.example.AlternateInterface", the latter of which will have
1612
1482
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1613
1483
"true", unless "deprecate" is passed with a False value.
1614
1484
1615
1485
This works for methods and signals, and also for D-Bus properties
1616
1486
(from DBusObjectWithProperties) and interfaces (from the
1617
1487
dbus_interface_annotations decorator).
1618
1488
"""
1619
1489
1620
1490
def wrapper(cls):
1621
1491
for orig_interface_name, alt_interface_name in (
1622
1492
alt_interface_names.items()):
1637
1507
interface_names.add(alt_interface)
1638
1508
# Is this a D-Bus signal?
1639
1509
if getattr(attribute, "_dbus_is_signal", False):
1640
# Extract the original non-method undecorated
1641
# function by black magic
1642
1510
if sys.version_info.major == 2:
1511
# Extract the original non-method undecorated
1512
# function by black magic
1643
1513
nonmethod_func = (dict(
1644
1514
zip(attribute.func_code.co_freevars,
1645
1515
attribute.__closure__))
1646
1516
["func"].cell_contents)
1647
1517
else:
1648
nonmethod_func = (dict(
1649
zip(attribute.__code__.co_freevars,
1650
attribute.__closure__))
1651
["func"].cell_contents)
1518
nonmethod_func = attribute
1652
1519
# Create a new, but exactly alike, function
1653
1520
# object, and decorate it to be a new D-Bus signal
1654
1521
# with the alternate D-Bus interface name
1655
new_function = copy_function(nonmethod_func)
1522
if sys.version_info.major == 2:
1523
new_function = types.FunctionType(
1524
nonmethod_func.func_code,
1525
nonmethod_func.func_globals,
1526
nonmethod_func.func_name,
1527
nonmethod_func.func_defaults,
1528
nonmethod_func.func_closure)
1529
else:
1530
new_function = types.FunctionType(
1531
nonmethod_func.__code__,
1532
nonmethod_func.__globals__,
1533
nonmethod_func.__name__,
1534
nonmethod_func.__defaults__,
1535
nonmethod_func.__closure__)
1656
1536
new_function = (dbus.service.signal(
1657
1537
alt_interface,
1658
1538
attribute._dbus_signature)(new_function))
1662
1542
attribute._dbus_annotations)
1663
1543
except AttributeError:
1664
1544
pass
1665
1666
1545
# Define a creator of a function to call both the
1667
1546
# original and alternate functions, so both the
1668
1547
# original and alternate signals gets sent when
1671
1550
"""This function is a scope container to pass
1672
1551
func1 and func2 to the "call_both" function
1673
1552
outside of its arguments"""
1674
1553
1675
1554
@functools.wraps(func2)
1676
1555
def call_both(*args, **kwargs):
1677
1556
"""This function will emit two D-Bus
1678
1557
signals by calling func1 and func2"""
1679
1558
func1(*args, **kwargs)
1680
1559
func2(*args, **kwargs)
1681
# Make wrapper function look like a D-Bus
1682
# signal
1560
# Make wrapper function look like a D-Bus signal
1683
1561
for name, attr in inspect.getmembers(func2):
1684
1562
if name.startswith("_dbus_"):
1685
1563
setattr(call_both, name, attr)
1686
1564
1687
1565
return call_both
1688
1566
# Create the "call_both" function and add it to
1689
1567
# the class
1699
1577
alt_interface,
1700
1578
attribute._dbus_in_signature,
1701
1579
attribute._dbus_out_signature)
1702
(copy_function(attribute)))
1580
(types.FunctionType(attribute.func_code,
1581
attribute.func_globals,
1582
attribute.func_name,
1583
attribute.func_defaults,
1584
attribute.func_closure)))
1703
1585
# Copy annotations, if any
1704
1586
try:
1705
1587
attr[attrname]._dbus_annotations = dict(
1717
1599
attribute._dbus_access,
1718
1600
attribute._dbus_get_args_options
1719
1601
["byte_arrays"])
1720
(copy_function(attribute)))
1602
(types.FunctionType(
1603
attribute.func_code,
1604
attribute.func_globals,
1605
attribute.func_name,
1606
attribute.func_defaults,
1607
attribute.func_closure)))
1721
1608
# Copy annotations, if any
1722
1609
try:
1723
1610
attr[attrname]._dbus_annotations = dict(
1732
1619
# to the class.
1733
1620
attr[attrname] = (
1734
1621
dbus_interface_annotations(alt_interface)
1735
(copy_function(attribute)))
1622
(types.FunctionType(attribute.func_code,
1623
attribute.func_globals,
1624
attribute.func_name,
1625
attribute.func_defaults,
1626
attribute.func_closure)))
1736
1627
if deprecate:
1737
1628
# Deprecate all alternate interfaces
1738
iname = "_AlternateDBusNames_interface_annotation{}"
1629
iname="_AlternateDBusNames_interface_annotation{}"
1739
1630
for interface_name in interface_names:
1740
1631
1741
1632
@dbus_interface_annotations(interface_name)
1742
1633
def func(self):
1743
return {"org.freedesktop.DBus.Deprecated":
1744
"true"}
1634
return { "org.freedesktop.DBus.Deprecated":
1635
"true" }
1745
1636
# Find an unused name
1746
1637
for aname in (iname.format(i)
1747
1638
for i in itertools.count()):
1751
1642
if interface_names:
1752
1643
# Replace the class with a new subclass of it with
1753
1644
# methods, signals, etc. as created above.
1754
if sys.version_info.major == 2:
1755
cls = type(b"{}Alternate".format(cls.__name__),
1756
(cls, ), attr)
1757
else:
1758
cls = type("{}Alternate".format(cls.__name__),
1759
(cls, ), attr)
1645
cls = type(b"{}Alternate".format(cls.__name__),
1646
(cls, ), attr)
1760
1647
return cls
1761
1648
1762
1649
return wrapper
1763
1650
1764
1651
1766
1653
"se.bsnet.fukt.Mandos"})
1767
1654
class ClientDBus(Client, DBusObjectWithProperties):
1768
1655
"""A Client class using D-Bus
1769
1656
1770
1657
Attributes:
1771
1658
dbus_object_path: dbus.ObjectPath
1772
1659
bus: dbus.SystemBus()
1773
1660
"""
1774
1661
1775
1662
runtime_expansions = (Client.runtime_expansions
1776
1663
+ ("dbus_object_path", ))
1777
1664
1778
1665
_interface = "se.recompile.Mandos.Client"
1779
1666
1780
1667
# dbus.service.Object doesn't use super(), so we can't either.
1781
1782
def __init__(self, bus=None, *args, **kwargs):
1668
1669
def __init__(self, bus = None, *args, **kwargs):
1783
1670
self.bus = bus
1784
1671
Client.__init__(self, *args, **kwargs)
1785
1672
# Only now, when this client is initialized, can it show up on
1791
1678
"/clients/" + client_object_name)
1792
1679
DBusObjectWithProperties.__init__(self, self.bus,
1793
1680
self.dbus_object_path)
1794
1681
1795
1682
def notifychangeproperty(transform_func, dbus_name,
1796
1683
type_func=lambda x: x,
1797
1684
variant_level=1,
1799
1686
_interface=_interface):
1800
1687
""" Modify a variable so that it's a property which announces
1801
1688
its changes to DBus.
1802
1689
1803
1690
transform_fun: Function that takes a value and a variant_level
1804
1691
and transforms it to a D-Bus type.
1805
1692
dbus_name: D-Bus name of the variable
1808
1695
variant_level: D-Bus variant level. Default: 1
1809
1696
"""
1810
1697
attrname = "_{}".format(dbus_name)
1811
1698
1812
1699
def setter(self, value):
1813
1700
if hasattr(self, "dbus_object_path"):
1814
1701
if (not hasattr(self, attrname) or
1821
1708
else:
1822
1709
dbus_value = transform_func(
1823
1710
type_func(value),
1824
variant_level=variant_level)
1711
variant_level = variant_level)
1825
1712
self.PropertyChanged(dbus.String(dbus_name),
1826
1713
dbus_value)
1827
1714
self.PropertiesChanged(
1828
1715
_interface,
1829
dbus.Dictionary({dbus.String(dbus_name):
1830
dbus_value}),
1716
dbus.Dictionary({ dbus.String(dbus_name):
1717
dbus_value }),
1831
1718
dbus.Array())
1832
1719
setattr(self, attrname, value)
1833
1720
1834
1721
return property(lambda self: getattr(self, attrname), setter)
1835
1722
1836
1723
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1837
1724
approvals_pending = notifychangeproperty(dbus.Boolean,
1838
1725
"ApprovalPending",
1839
type_func=bool)
1726
type_func = bool)
1840
1727
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1841
1728
last_enabled = notifychangeproperty(datetime_to_dbus,
1842
1729
"LastEnabled")
1843
1730
checker = notifychangeproperty(
1844
1731
dbus.Boolean, "CheckerRunning",
1845
type_func=lambda checker: checker is not None)
1732
type_func = lambda checker: checker is not None)
1846
1733
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1847
1734
"LastCheckedOK")
1848
1735
last_checker_status = notifychangeproperty(dbus.Int16,
1853
1740
"ApprovedByDefault")
1854
1741
approval_delay = notifychangeproperty(
1855
1742
dbus.UInt64, "ApprovalDelay",
1856
type_func=lambda td: td.total_seconds() * 1000)
1743
type_func = lambda td: td.total_seconds() * 1000)
1857
1744
approval_duration = notifychangeproperty(
1858
1745
dbus.UInt64, "ApprovalDuration",
1859
type_func=lambda td: td.total_seconds() * 1000)
1746
type_func = lambda td: td.total_seconds() * 1000)
1860
1747
host = notifychangeproperty(dbus.String, "Host")
1861
1748
timeout = notifychangeproperty(
1862
1749
dbus.UInt64, "Timeout",
1863
type_func=lambda td: td.total_seconds() * 1000)
1750
type_func = lambda td: td.total_seconds() * 1000)
1864
1751
extended_timeout = notifychangeproperty(
1865
1752
dbus.UInt64, "ExtendedTimeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
1753
type_func = lambda td: td.total_seconds() * 1000)
1867
1754
interval = notifychangeproperty(
1868
1755
dbus.UInt64, "Interval",
1869
type_func=lambda td: td.total_seconds() * 1000)
1756
type_func = lambda td: td.total_seconds() * 1000)
1870
1757
checker_command = notifychangeproperty(dbus.String, "Checker")
1871
1758
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1872
1759
invalidate_only=True)
1873
1760
1874
1761
del notifychangeproperty
1875
1762
1876
1763
def __del__(self, *args, **kwargs):
1877
1764
try:
1878
1765
self.remove_from_connection()
1881
1768
if hasattr(DBusObjectWithProperties, "__del__"):
1882
1769
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1883
1770
Client.__del__(self, *args, **kwargs)
1884
1771
1885
1772
def checker_callback(self, source, condition,
1886
1773
connection, command, *args, **kwargs):
1887
1774
ret = Client.checker_callback(self, source, condition,
1903
1790
| self.last_checker_signal),
1904
1791
dbus.String(command))
1905
1792
return ret
1906
1793
1907
1794
def start_checker(self, *args, **kwargs):
1908
1795
old_checker_pid = getattr(self.checker, "pid", None)
1909
1796
r = Client.start_checker(self, *args, **kwargs)
1913
1800
# Emit D-Bus signal
1914
1801
self.CheckerStarted(self.current_checker_command)
1915
1802
return r
1916
1803
1917
1804
def _reset_approved(self):
1918
1805
self.approved = None
1919
1806
return False
1920
1807
1921
1808
def approve(self, value=True):
1922
1809
self.approved = value
1923
GLib.timeout_add(int(self.approval_duration.total_seconds()
1924
* 1000), self._reset_approved)
1810
gobject.timeout_add(int(self.approval_duration.total_seconds()
1811
* 1000), self._reset_approved)
1925
1812
self.send_changedstate()
1926
1927
# D-Bus methods, signals & properties
1928
1929
# Interfaces
1930
1931
# Signals
1932
1813
1814
## D-Bus methods, signals & properties
1815
1816
## Interfaces
1817
1818
## Signals
1819
1933
1820
# CheckerCompleted - signal
1934
1821
@dbus.service.signal(_interface, signature="nxs")
1935
1822
def CheckerCompleted(self, exitcode, waitstatus, command):
1936
1823
"D-Bus signal"
1937
1824
pass
1938
1825
1939
1826
# CheckerStarted - signal
1940
1827
@dbus.service.signal(_interface, signature="s")
1941
1828
def CheckerStarted(self, command):
1942
1829
"D-Bus signal"
1943
1830
pass
1944
1831
1945
1832
# PropertyChanged - signal
1946
1833
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1947
1834
@dbus.service.signal(_interface, signature="sv")
1948
1835
def PropertyChanged(self, property, value):
1949
1836
"D-Bus signal"
1950
1837
pass
1951
1838
1952
1839
# GotSecret - signal
1953
1840
@dbus.service.signal(_interface)
1954
1841
def GotSecret(self):
1957
1844
server to mandos-client
1958
1845
"""
1959
1846
pass
1960
1847
1961
1848
# Rejected - signal
1962
1849
@dbus.service.signal(_interface, signature="s")
1963
1850
def Rejected(self, reason):
1964
1851
"D-Bus signal"
1965
1852
pass
1966
1853
1967
1854
# NeedApproval - signal
1968
1855
@dbus.service.signal(_interface, signature="tb")
1969
1856
def NeedApproval(self, timeout, default):
1970
1857
"D-Bus signal"
1971
1858
return self.need_approval()
1972
1973
# Methods
1974
1859
1860
## Methods
1861
1975
1862
# Approve - method
1976
1863
@dbus.service.method(_interface, in_signature="b")
1977
1864
def Approve(self, value):
1978
1865
self.approve(value)
1979
1866
1980
1867
# CheckedOK - method
1981
1868
@dbus.service.method(_interface)
1982
1869
def CheckedOK(self):
1983
1870
self.checked_ok()
1984
1871
1985
1872
# Enable - method
1986
1873
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1987
1874
@dbus.service.method(_interface)
1988
1875
def Enable(self):
1989
1876
"D-Bus method"
1990
1877
self.enable()
1991
1878
1992
1879
# StartChecker - method
1993
1880
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1994
1881
@dbus.service.method(_interface)
1995
1882
def StartChecker(self):
1996
1883
"D-Bus method"
1997
1884
self.start_checker()
1998
1885
1999
1886
# Disable - method
2000
1887
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2001
1888
@dbus.service.method(_interface)
2002
1889
def Disable(self):
2003
1890
"D-Bus method"
2004
1891
self.disable()
2005
1892
2006
1893
# StopChecker - method
2007
1894
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2008
1895
@dbus.service.method(_interface)
2009
1896
def StopChecker(self):
2010
1897
self.stop_checker()
2011
2012
# Properties
2013
1898
1899
## Properties
1900
2014
1901
# ApprovalPending - property
2015
1902
@dbus_service_property(_interface, signature="b", access="read")
2016
1903
def ApprovalPending_dbus_property(self):
2017
1904
return dbus.Boolean(bool(self.approvals_pending))
2018
1905
2019
1906
# ApprovedByDefault - property
2020
1907
@dbus_service_property(_interface,
2021
1908
signature="b",
2024
1911
if value is None: # get
2025
1912
return dbus.Boolean(self.approved_by_default)
2026
1913
self.approved_by_default = bool(value)
2027
1914
2028
1915
# ApprovalDelay - property
2029
1916
@dbus_service_property(_interface,
2030
1917
signature="t",
2034
1921
return dbus.UInt64(self.approval_delay.total_seconds()
2035
1922
* 1000)
2036
1923
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2037
1924
2038
1925
# ApprovalDuration - property
2039
1926
@dbus_service_property(_interface,
2040
1927
signature="t",
2044
1931
return dbus.UInt64(self.approval_duration.total_seconds()
2045
1932
* 1000)
2046
1933
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2047
1934
2048
1935
# Name - property
2049
1936
@dbus_annotations(
2050
1937
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2051
1938
@dbus_service_property(_interface, signature="s", access="read")
2052
1939
def Name_dbus_property(self):
2053
1940
return dbus.String(self.name)
2054
2055
# KeyID - property
2056
@dbus_annotations(
2057
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2058
@dbus_service_property(_interface, signature="s", access="read")
2059
def KeyID_dbus_property(self):
2060
return dbus.String(self.key_id)
2061
1941
2062
1942
# Fingerprint - property
2063
1943
@dbus_annotations(
2064
1944
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2065
1945
@dbus_service_property(_interface, signature="s", access="read")
2066
1946
def Fingerprint_dbus_property(self):
2067
1947
return dbus.String(self.fingerprint)
2068
1948
2069
1949
# Host - property
2070
1950
@dbus_service_property(_interface,
2071
1951
signature="s",
2074
1954
if value is None: # get
2075
1955
return dbus.String(self.host)
2076
1956
self.host = str(value)
2077
1957
2078
1958
# Created - property
2079
1959
@dbus_annotations(
2080
1960
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2081
1961
@dbus_service_property(_interface, signature="s", access="read")
2082
1962
def Created_dbus_property(self):
2083
1963
return datetime_to_dbus(self.created)
2084
1964
2085
1965
# LastEnabled - property
2086
1966
@dbus_service_property(_interface, signature="s", access="read")
2087
1967
def LastEnabled_dbus_property(self):
2088
1968
return datetime_to_dbus(self.last_enabled)
2089
1969
2090
1970
# Enabled - property
2091
1971
@dbus_service_property(_interface,
2092
1972
signature="b",
2098
1978
self.enable()
2099
1979
else:
2100
1980
self.disable()
2101
1981
2102
1982
# LastCheckedOK - property
2103
1983
@dbus_service_property(_interface,
2104
1984
signature="s",
2108
1988
self.checked_ok()
2109
1989
return
2110
1990
return datetime_to_dbus(self.last_checked_ok)
2111
1991
2112
1992
# LastCheckerStatus - property
2113
1993
@dbus_service_property(_interface, signature="n", access="read")
2114
1994
def LastCheckerStatus_dbus_property(self):
2115
1995
return dbus.Int16(self.last_checker_status)
2116
1996
2117
1997
# Expires - property
2118
1998
@dbus_service_property(_interface, signature="s", access="read")
2119
1999
def Expires_dbus_property(self):
2120
2000
return datetime_to_dbus(self.expires)
2121
2001
2122
2002
# LastApprovalRequest - property
2123
2003
@dbus_service_property(_interface, signature="s", access="read")
2124
2004
def LastApprovalRequest_dbus_property(self):
2125
2005
return datetime_to_dbus(self.last_approval_request)
2126
2006
2127
2007
# Timeout - property
2128
2008
@dbus_service_property(_interface,
2129
2009
signature="t",
2144
2024
if (getattr(self, "disable_initiator_tag", None)
2145
2025
is None):
2146
2026
return
2147
GLib.source_remove(self.disable_initiator_tag)
2148
self.disable_initiator_tag = GLib.timeout_add(
2027
gobject.source_remove(self.disable_initiator_tag)
2028
self.disable_initiator_tag = gobject.timeout_add(
2149
2029
int((self.expires - now).total_seconds() * 1000),
2150
2030
self.disable)
2151
2031
2152
2032
# ExtendedTimeout - property
2153
2033
@dbus_service_property(_interface,
2154
2034
signature="t",
2158
2038
return dbus.UInt64(self.extended_timeout.total_seconds()
2159
2039
* 1000)
2160
2040
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2161
2041
2162
2042
# Interval - property
2163
2043
@dbus_service_property(_interface,
2164
2044
signature="t",
2171
2051
return
2172
2052
if self.enabled:
2173
2053
# Reschedule checker run
2174
GLib.source_remove(self.checker_initiator_tag)
2175
self.checker_initiator_tag = GLib.timeout_add(
2054
gobject.source_remove(self.checker_initiator_tag)
2055
self.checker_initiator_tag = gobject.timeout_add(
2176
2056
value, self.start_checker)
2177
self.start_checker() # Start one now, too
2178
2057
self.start_checker() # Start one now, too
2058
2179
2059
# Checker - property
2180
2060
@dbus_service_property(_interface,
2181
2061
signature="s",
2184
2064
if value is None: # get
2185
2065
return dbus.String(self.checker_command)
2186
2066
self.checker_command = str(value)
2187
2067
2188
2068
# CheckerRunning - property
2189
2069
@dbus_service_property(_interface,
2190
2070
signature="b",
2196
2076
self.start_checker()
2197
2077
else:
2198
2078
self.stop_checker()
2199
2079
2200
2080
# ObjectPath - property
2201
2081
@dbus_annotations(
2202
2082
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2203
2083
"org.freedesktop.DBus.Deprecated": "true"})
2204
2084
@dbus_service_property(_interface, signature="o", access="read")
2205
2085
def ObjectPath_dbus_property(self):
2206
return self.dbus_object_path # is already a dbus.ObjectPath
2207
2086
return self.dbus_object_path # is already a dbus.ObjectPath
2087
2208
2088
# Secret = property
2209
2089
@dbus_annotations(
2210
2090
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2215
2095
byte_arrays=True)
2216
2096
def Secret_dbus_property(self, value):
2217
2097
self.secret = bytes(value)
2218
2098
2219
2099
del _interface
2220
2100
2221
2101
2222
2102
class ProxyClient(object):
2223
def __init__(self, child_pipe, key_id, fpr, address):
2103
def __init__(self, child_pipe, fpr, address):
2224
2104
self._pipe = child_pipe
2225
self._pipe.send(('init', key_id, fpr, address))
2105
self._pipe.send(('init', fpr, address))
2226
2106
if not self._pipe.recv():
2227
raise KeyError(key_id or fpr)
2228
2107
raise KeyError(fpr)
2108
2229
2109
def __getattribute__(self, name):
2230
2110
if name == '_pipe':
2231
2111
return super(ProxyClient, self).__getattribute__(name)
2234
2114
if data[0] == 'data':
2235
2115
return data[1]
2236
2116
if data[0] == 'function':
2237
2117
2238
2118
def func(*args, **kwargs):
2239
2119
self._pipe.send(('funcall', name, args, kwargs))
2240
2120
return self._pipe.recv()[1]
2241
2121
2242
2122
return func
2243
2123
2244
2124
def __setattr__(self, name, value):
2245
2125
if name == '_pipe':
2246
2126
return super(ProxyClient, self).__setattr__(name, value)
2249
2129
2250
2130
class ClientHandler(socketserver.BaseRequestHandler, object):
2251
2131
"""A class to handle client connections.
2252
2132
2253
2133
Instantiated once for each connection to handle it.
2254
2134
Note: This will run in its own forked process."""
2255
2135
2256
2136
def handle(self):
2257
2137
with contextlib.closing(self.server.child_pipe) as child_pipe:
2258
2138
logger.info("TCP connection from: %s",
2259
2139
str(self.client_address))
2260
2140
logger.debug("Pipe FD: %d",
2261
2141
self.server.child_pipe.fileno())
2262
2142
2263
2143
session = gnutls.ClientSession(self.request)
2264
2265
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2266
# "+AES-256-CBC", "+SHA1",
2267
# "+COMP-NULL", "+CTYPE-OPENPGP",
2268
# "+DHE-DSS"))
2144
2145
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
2146
# "+AES-256-CBC", "+SHA1",
2147
# "+COMP-NULL", "+CTYPE-OPENPGP",
2148
# "+DHE-DSS"))
2269
2149
# Use a fallback default, since this MUST be set.
2270
2150
priority = self.server.gnutls_priority
2271
2151
if priority is None:
2272
2152
priority = "NORMAL"
2273
gnutls.priority_set_direct(session._c_object,
2274
priority.encode("utf-8"),
2153
gnutls.priority_set_direct(session._c_object, priority,
2275
2154
None)
2276
2155
2277
2156
# Start communication using the Mandos protocol
2278
2157
# Get protocol number
2279
2158
line = self.request.makefile().readline()
2284
2163
except (ValueError, IndexError, RuntimeError) as error:
2285
2164
logger.error("Unknown protocol version: %s", error)
2286
2165
return
2287
2166
2288
2167
# Start GnuTLS connection
2289
2168
try:
2290
2169
session.handshake()
2294
2173
# established. Just abandon the request.
2295
2174
return
2296
2175
logger.debug("Handshake succeeded")
2297
2176
2298
2177
approval_required = False
2299
2178
try:
2300
if gnutls.has_rawpk:
2301
fpr = ""
2302
try:
2303
key_id = self.key_id(
2304
self.peer_certificate(session))
2305
except (TypeError, gnutls.Error) as error:
2306
logger.warning("Bad certificate: %s", error)
2307
return
2308
logger.debug("Key ID: %s", key_id)
2309
2310
else:
2311
key_id = ""
2312
try:
2313
fpr = self.fingerprint(
2314
self.peer_certificate(session))
2315
except (TypeError, gnutls.Error) as error:
2316
logger.warning("Bad certificate: %s", error)
2317
return
2318
logger.debug("Fingerprint: %s", fpr)
2319
2320
try:
2321
client = ProxyClient(child_pipe, key_id, fpr,
2179
try:
2180
fpr = self.fingerprint(
2181
self.peer_certificate(session))
2182
except (TypeError, gnutls.Error) as error:
2183
logger.warning("Bad certificate: %s", error)
2184
return
2185
logger.debug("Fingerprint: %s", fpr)
2186
2187
try:
2188
client = ProxyClient(child_pipe, fpr,
2322
2189
self.client_address)
2323
2190
except KeyError:
2324
2191
return
2325
2192
2326
2193
if client.approval_delay:
2327
2194
delay = client.approval_delay
2328
2195
client.approvals_pending += 1
2329
2196
approval_required = True
2330
2197
2331
2198
while True:
2332
2199
if not client.enabled:
2333
2200
logger.info("Client %s is disabled",
2336
2203
# Emit D-Bus signal
2337
2204
client.Rejected("Disabled")
2338
2205
return
2339
2206
2340
2207
if client.approved or not client.approval_delay:
2341
# We are approved or approval is disabled
2208
#We are approved or approval is disabled
2342
2209
break
2343
2210
elif client.approved is None:
2344
2211
logger.info("Client %s needs approval",
2355
2222
# Emit D-Bus signal
2356
2223
client.Rejected("Denied")
2357
2224
return
2358
2359
# wait until timeout or approved
2225
2226
#wait until timeout or approved
2360
2227
time = datetime.datetime.now()
2361
2228
client.changedstate.acquire()
2362
2229
client.changedstate.wait(delay.total_seconds())
2375
2242
break
2376
2243
else:
2377
2244
delay -= time2 - time
2378
2245
2379
2246
try:
2380
2247
session.send(client.secret)
2381
2248
except gnutls.Error as error:
2382
2249
logger.warning("gnutls send failed",
2383
exc_info=error)
2250
exc_info = error)
2384
2251
return
2385
2252
2386
2253
logger.info("Sending secret to %s", client.name)
2387
2254
# bump the timeout using extended_timeout
2388
2255
client.bump_timeout(client.extended_timeout)
2389
2256
if self.server.use_dbus:
2390
2257
# Emit D-Bus signal
2391
2258
client.GotSecret()
2392
2259
2393
2260
finally:
2394
2261
if approval_required:
2395
2262
client.approvals_pending -= 1
2398
2265
except gnutls.Error as error:
2399
2266
logger.warning("GnuTLS bye failed",
2400
2267
exc_info=error)
2401
2268
2402
2269
@staticmethod
2403
2270
def peer_certificate(session):
2404
"Return the peer's certificate as a bytestring"
2405
try:
2406
cert_type = gnutls.certificate_type_get2(session._c_object,
2407
gnutls.CTYPE_PEERS)
2408
except AttributeError:
2409
cert_type = gnutls.certificate_type_get(session._c_object)
2410
if gnutls.has_rawpk:
2411
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2412
else:
2413
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2414
# If not a valid certificate type...
2415
if cert_type not in valid_cert_types:
2416
logger.info("Cert type %r not in %r", cert_type,
2417
valid_cert_types)
2271
"Return the peer's OpenPGP certificate as a bytestring"
2272
# If not an OpenPGP certificate...
2273
if (gnutls.certificate_type_get(session._c_object)
2274
!= gnutls.CRT_OPENPGP):
2418
2275
# ...return invalid data
2419
2276
return b""
2420
2277
list_size = ctypes.c_uint(1)
2426
2283
return None
2427
2284
cert = cert_list[0]
2428
2285
return ctypes.string_at(cert.data, cert.size)
2429
2430
@staticmethod
2431
def key_id(certificate):
2432
"Convert a certificate bytestring to a hexdigit key ID"
2433
# New GnuTLS "datum" with the public key
2434
datum = gnutls.datum_t(
2435
ctypes.cast(ctypes.c_char_p(certificate),
2436
ctypes.POINTER(ctypes.c_ubyte)),
2437
ctypes.c_uint(len(certificate)))
2438
# XXX all these need to be created in the gnutls "module"
2439
# New empty GnuTLS certificate
2440
pubkey = gnutls.pubkey_t()
2441
gnutls.pubkey_init(ctypes.byref(pubkey))
2442
# Import the raw public key into the certificate
2443
gnutls.pubkey_import(pubkey,
2444
ctypes.byref(datum),
2445
gnutls.X509_FMT_DER)
2446
# New buffer for the key ID
2447
buf = ctypes.create_string_buffer(32)
2448
buf_len = ctypes.c_size_t(len(buf))
2449
# Get the key ID from the raw public key into the buffer
2450
gnutls.pubkey_get_key_id(pubkey,
2451
gnutls.KEYID_USE_SHA256,
2452
ctypes.cast(ctypes.byref(buf),
2453
ctypes.POINTER(ctypes.c_ubyte)),
2454
ctypes.byref(buf_len))
2455
# Deinit the certificate
2456
gnutls.pubkey_deinit(pubkey)
2457
2458
# Convert the buffer to a Python bytestring
2459
key_id = ctypes.string_at(buf, buf_len.value)
2460
# Convert the bytestring to hexadecimal notation
2461
hex_key_id = binascii.hexlify(key_id).upper()
2462
return hex_key_id
2463
2286
2464
2287
@staticmethod
2465
2288
def fingerprint(openpgp):
2466
2289
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2481
2304
ctypes.byref(crtverify))
2482
2305
if crtverify.value != 0:
2483
2306
gnutls.openpgp_crt_deinit(crt)
2484
raise gnutls.CertificateSecurityError(code
2485
=crtverify.value)
2307
raise gnutls.CertificateSecurityError("Verify failed")
2486
2308
# New buffer for the fingerprint
2487
2309
buf = ctypes.create_string_buffer(20)
2488
2310
buf_len = ctypes.c_size_t()
2500
2322
2501
2323
class MultiprocessingMixIn(object):
2502
2324
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2503
2325
2504
2326
def sub_process_main(self, request, address):
2505
2327
try:
2506
2328
self.finish_request(request, address)
2507
2329
except Exception:
2508
2330
self.handle_error(request, address)
2509
2331
self.close_request(request)
2510
2332
2511
2333
def process_request(self, request, address):
2512
2334
"""Start a new process to process the request."""
2513
proc = multiprocessing.Process(target=self.sub_process_main,
2514
args=(request, address))
2335
proc = multiprocessing.Process(target = self.sub_process_main,
2336
args = (request, address))
2515
2337
proc.start()
2516
2338
return proc
2517
2339
2518
2340
2519
2341
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2520
2342
""" adds a pipe to the MixIn """
2521
2343
2522
2344
def process_request(self, request, client_address):
2523
2345
"""Overrides and wraps the original process_request().
2524
2346
2525
2347
This function creates a new pipe in self.pipe
2526
2348
"""
2527
2349
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2528
2350
2529
2351
proc = MultiprocessingMixIn.process_request(self, request,
2530
2352
client_address)
2531
2353
self.child_pipe.close()
2532
2354
self.add_pipe(parent_pipe, proc)
2533
2355
2534
2356
def add_pipe(self, parent_pipe, proc):
2535
2357
"""Dummy function; override as necessary"""
2536
2358
raise NotImplementedError()
2539
2361
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2540
2362
socketserver.TCPServer, object):
2541
2363
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2542
2364
2543
2365
Attributes:
2544
2366
enabled: Boolean; whether this server is activated yet
2545
2367
interface: None or a network interface name (string)
2546
2368
use_ipv6: Boolean; to use IPv6 or not
2547
2369
"""
2548
2370
2549
2371
def __init__(self, server_address, RequestHandlerClass,
2550
2372
interface=None,
2551
2373
use_ipv6=True,
2561
2383
self.socketfd = socketfd
2562
2384
# Save the original socket.socket() function
2563
2385
self.socket_socket = socket.socket
2564
2565
2386
# To implement --socket, we monkey patch socket.socket.
2566
#
2387
#
2567
2388
# (When socketserver.TCPServer is a new-style class, we
2568
2389
# could make self.socket into a property instead of monkey
2569
2390
# patching socket.socket.)
2570
#
2391
#
2571
2392
# Create a one-time-only replacement for socket.socket()
2572
2393
@functools.wraps(socket.socket)
2573
2394
def socket_wrapper(*args, **kwargs):
2585
2406
# socket_wrapper(), if socketfd was set.
2586
2407
socketserver.TCPServer.__init__(self, server_address,
2587
2408
RequestHandlerClass)
2588
2409
2589
2410
def server_bind(self):
2590
2411
"""This overrides the normal server_bind() function
2591
2412
to bind to an interface if one was specified, and also NOT to
2592
2413
bind to an address or port if they were not specified."""
2593
global SO_BINDTODEVICE
2594
2414
if self.interface is not None:
2595
2415
if SO_BINDTODEVICE is None:
2596
# Fall back to a hard-coded value which seems to be
2597
# common enough.
2598
logger.warning("SO_BINDTODEVICE not found, trying 25")
2599
SO_BINDTODEVICE = 25
2600
try:
2601
self.socket.setsockopt(
2602
socket.SOL_SOCKET, SO_BINDTODEVICE,
2603
(self.interface + "\0").encode("utf-8"))
2604
except socket.error as error:
2605
if error.errno == errno.EPERM:
2606
logger.error("No permission to bind to"
2607
" interface %s", self.interface)
2608
elif error.errno == errno.ENOPROTOOPT:
2609
logger.error("SO_BINDTODEVICE not available;"
2610
" cannot bind to interface %s",
2611
self.interface)
2612
elif error.errno == errno.ENODEV:
2613
logger.error("Interface %s does not exist,"
2614
" cannot bind", self.interface)
2615
else:
2616
raise
2416
logger.error("SO_BINDTODEVICE does not exist;"
2417
" cannot bind to interface %s",
2418
self.interface)
2419
else:
2420
try:
2421
self.socket.setsockopt(
2422
socket.SOL_SOCKET, SO_BINDTODEVICE,
2423
(self.interface + "\0").encode("utf-8"))
2424
except socket.error as error:
2425
if error.errno == errno.EPERM:
2426
logger.error("No permission to bind to"
2427
" interface %s", self.interface)
2428
elif error.errno == errno.ENOPROTOOPT:
2429
logger.error("SO_BINDTODEVICE not available;"
2430
" cannot bind to interface %s",
2431
self.interface)
2432
elif error.errno == errno.ENODEV:
2433
logger.error("Interface %s does not exist,"
2434
" cannot bind", self.interface)
2435
else:
2436
raise
2617
2437
# Only bind(2) the socket if we really need to.
2618
2438
if self.server_address[0] or self.server_address[1]:
2619
2439
if not self.server_address[0]:
2620
2440
if self.address_family == socket.AF_INET6:
2621
any_address = "::" # in6addr_any
2441
any_address = "::" # in6addr_any
2622
2442
else:
2623
any_address = "0.0.0.0" # INADDR_ANY
2443
any_address = "0.0.0.0" # INADDR_ANY
2624
2444
self.server_address = (any_address,
2625
2445
self.server_address[1])
2626
2446
elif not self.server_address[1]:
2636
2456
2637
2457
class MandosServer(IPv6_TCPServer):
2638
2458
"""Mandos server.
2639
2459
2640
2460
Attributes:
2641
2461
clients: set of Client objects
2642
2462
gnutls_priority GnuTLS priority string
2643
2463
use_dbus: Boolean; to emit D-Bus signals or not
2644
2645
Assumes a GLib.MainLoop event loop.
2464
2465
Assumes a gobject.MainLoop event loop.
2646
2466
"""
2647
2467
2648
2468
def __init__(self, server_address, RequestHandlerClass,
2649
2469
interface=None,
2650
2470
use_ipv6=True,
2660
2480
self.gnutls_priority = gnutls_priority
2661
2481
IPv6_TCPServer.__init__(self, server_address,
2662
2482
RequestHandlerClass,
2663
interface=interface,
2664
use_ipv6=use_ipv6,
2665
socketfd=socketfd)
2666
2483
interface = interface,
2484
use_ipv6 = use_ipv6,
2485
socketfd = socketfd)
2486
2667
2487
def server_activate(self):
2668
2488
if self.enabled:
2669
2489
return socketserver.TCPServer.server_activate(self)
2670
2490
2671
2491
def enable(self):
2672
2492
self.enabled = True
2673
2493
2674
2494
def add_pipe(self, parent_pipe, proc):
2675
2495
# Call "handle_ipc" for both data and EOF events
2676
GLib.io_add_watch(
2496
gobject.io_add_watch(
2677
2497
parent_pipe.fileno(),
2678
GLib.IO_IN | GLib.IO_HUP,
2498
gobject.IO_IN | gobject.IO_HUP,
2679
2499
functools.partial(self.handle_ipc,
2680
parent_pipe=parent_pipe,
2681
proc=proc))
2682
2500
parent_pipe = parent_pipe,
2501
proc = proc))
2502
2683
2503
def handle_ipc(self, source, condition,
2684
2504
parent_pipe=None,
2685
proc=None,
2505
proc = None,
2686
2506
client_object=None):
2687
2507
# error, or the other end of multiprocessing.Pipe has closed
2688
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2508
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2689
2509
# Wait for other process to exit
2690
2510
proc.join()
2691
2511
return False
2692
2512
2693
2513
# Read a request from the child
2694
2514
request = parent_pipe.recv()
2695
2515
command = request[0]
2696
2516
2697
2517
if command == 'init':
2698
key_id = request[1].decode("ascii")
2699
fpr = request[2].decode("ascii")
2700
address = request[3]
2701
2702
for c in self.clients.values():
2703
if key_id and c.key_id == key_id:
2704
client = c
2705
break
2706
if fpr and c.fingerprint == fpr:
2518
fpr = request[1]
2519
address = request[2]
2520
2521
for c in self.clients.itervalues():
2522
if c.fingerprint == fpr:
2707
2523
client = c
2708
2524
break
2709
2525
else:
2710
logger.info("Client not found for key ID: %s, address"
2711
": %s", key_id or fpr, address)
2526
logger.info("Client not found for fingerprint: %s, ad"
2527
"dress: %s", fpr, address)
2712
2528
if self.use_dbus:
2713
2529
# Emit D-Bus signal
2714
mandos_dbus_service.ClientNotFound(key_id or fpr,
2530
mandos_dbus_service.ClientNotFound(fpr,
2715
2531
address[0])
2716
2532
parent_pipe.send(False)
2717
2533
return False
2718
2719
GLib.io_add_watch(
2534
2535
gobject.io_add_watch(
2720
2536
parent_pipe.fileno(),
2721
GLib.IO_IN | GLib.IO_HUP,
2537
gobject.IO_IN | gobject.IO_HUP,
2722
2538
functools.partial(self.handle_ipc,
2723
parent_pipe=parent_pipe,
2724
proc=proc,
2725
client_object=client))
2539
parent_pipe = parent_pipe,
2540
proc = proc,
2541
client_object = client))
2726
2542
parent_pipe.send(True)
2727
2543
# remove the old hook in favor of the new above hook on
2728
2544
# same fileno
2731
2547
funcname = request[1]
2732
2548
args = request[2]
2733
2549
kwargs = request[3]
2734
2550
2735
2551
parent_pipe.send(('data', getattr(client_object,
2736
2552
funcname)(*args,
2737
2553
**kwargs)))
2738
2554
2739
2555
if command == 'getattr':
2740
2556
attrname = request[1]
2741
2557
if isinstance(client_object.__getattribute__(attrname),
2744
2560
else:
2745
2561
parent_pipe.send((
2746
2562
'data', client_object.__getattribute__(attrname)))
2747
2563
2748
2564
if command == 'setattr':
2749
2565
attrname = request[1]
2750
2566
value = request[2]
2751
2567
setattr(client_object, attrname, value)
2752
2568
2753
2569
return True
2754
2570
2755
2571
2756
2572
def rfc3339_duration_to_delta(duration):
2757
2573
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2758
2574
2759
2575
>>> rfc3339_duration_to_delta("P7D")
2760
2576
datetime.timedelta(7)
2761
2577
>>> rfc3339_duration_to_delta("PT60S")
2771
2587
>>> rfc3339_duration_to_delta("P1DT3M20S")
2772
2588
datetime.timedelta(1, 200)
2773
2589
"""
2774
2590
2775
2591
# Parsing an RFC 3339 duration with regular expressions is not
2776
2592
# possible - there would have to be multiple places for the same
2777
2593
# values, like seconds. The current code, while more esoteric, is
2778
2594
# cleaner without depending on a parsing library. If Python had a
2779
2595
# built-in library for parsing we would use it, but we'd like to
2780
2596
# avoid excessive use of external libraries.
2781
2597
2782
2598
# New type for defining tokens, syntax, and semantics all-in-one
2783
2599
Token = collections.namedtuple("Token", (
2784
2600
"regexp", # To match token; if "value" is not None, must have
2817
2633
frozenset((token_year, token_month,
2818
2634
token_day, token_time,
2819
2635
token_week)))
2820
# Define starting values:
2821
# Value so far
2822
value = datetime.timedelta()
2636
# Define starting values
2637
value = datetime.timedelta() # Value so far
2823
2638
found_token = None
2824
# Following valid tokens
2825
followers = frozenset((token_duration, ))
2826
# String left to parse
2827
s = duration
2639
followers = frozenset((token_duration, )) # Following valid tokens
2640
s = duration # String left to parse
2828
2641
# Loop until end token is found
2829
2642
while found_token is not token_end:
2830
2643
# Search for any currently valid tokens
2854
2667
2855
2668
def string_to_delta(interval):
2856
2669
"""Parse a string and return a datetime.timedelta
2857
2670
2858
2671
>>> string_to_delta('7d')
2859
2672
datetime.timedelta(7)
2860
2673
>>> string_to_delta('60s')
2868
2681
>>> string_to_delta('5m 30s')
2869
2682
datetime.timedelta(0, 330)
2870
2683
"""
2871
2684
2872
2685
try:
2873
2686
return rfc3339_duration_to_delta(interval)
2874
2687
except ValueError:
2875
2688
pass
2876
2689
2877
2690
timevalue = datetime.timedelta(0)
2878
2691
for s in interval.split():
2879
2692
try:
2897
2710
return timevalue
2898
2711
2899
2712
2900
def daemon(nochdir=False, noclose=False):
2713
def daemon(nochdir = False, noclose = False):
2901
2714
"""See daemon(3). Standard BSD Unix function.
2902
2715
2903
2716
This should really exist as os.daemon, but it doesn't (yet)."""
2904
2717
if os.fork():
2905
2718
sys.exit()
2923
2736
2924
2737
2925
2738
def main():
2926
2739
2927
2740
##################################################################
2928
2741
# Parsing of options, both command line and config file
2929
2742
2930
2743
parser = argparse.ArgumentParser()
2931
2744
parser.add_argument("-v", "--version", action="version",
2932
version="%(prog)s {}".format(version),
2745
version = "%(prog)s {}".format(version),
2933
2746
help="show version number and exit")
2934
2747
parser.add_argument("-i", "--interface", metavar="IF",
2935
2748
help="Bind to interface IF")
2971
2784
parser.add_argument("--no-zeroconf", action="store_false",
2972
2785
dest="zeroconf", help="Do not use Zeroconf",
2973
2786
default=None)
2974
2787
2975
2788
options = parser.parse_args()
2976
2789
2977
2790
if options.check:
2978
2791
import doctest
2979
2792
fail_count, test_count = doctest.testmod()
2980
2793
sys.exit(os.EX_OK if fail_count == 0 else 1)
2981
2794
2982
2795
# Default values for config file for server-global settings
2983
if gnutls.has_rawpk:
2984
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2985
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2986
else:
2987
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2988
":+SIGN-DSA-SHA256")
2989
server_defaults = {"interface": "",
2990
"address": "",
2991
"port": "",
2992
"debug": "False",
2993
"priority": priority,
2994
"servicename": "Mandos",
2995
"use_dbus": "True",
2996
"use_ipv6": "True",
2997
"debuglevel": "",
2998
"restore": "True",
2999
"socket": "",
3000
"statedir": "/var/lib/mandos",
3001
"foreground": "False",
3002
"zeroconf": "True",
3003
}
3004
del priority
3005
2796
server_defaults = { "interface": "",
2797
"address": "",
2798
"port": "",
2799
"debug": "False",
2800
"priority":
2801
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2802
":+SIGN-DSA-SHA256",
2803
"servicename": "Mandos",
2804
"use_dbus": "True",
2805
"use_ipv6": "True",
2806
"debuglevel": "",
2807
"restore": "True",
2808
"socket": "",
2809
"statedir": "/var/lib/mandos",
2810
"foreground": "False",
2811
"zeroconf": "True",
2812
}
2813
3006
2814
# Parse config file for server-global settings
3007
2815
server_config = configparser.SafeConfigParser(server_defaults)
3008
2816
del server_defaults
3010
2818
# Convert the SafeConfigParser object to a dict
3011
2819
server_settings = server_config.defaults()
3012
2820
# Use the appropriate methods on the non-string config options
3013
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3014
"foreground", "zeroconf"):
2821
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3015
2822
server_settings[option] = server_config.getboolean("DEFAULT",
3016
2823
option)
3017
2824
if server_settings["port"]:
3027
2834
server_settings["socket"] = os.dup(server_settings
3028
2835
["socket"])
3029
2836
del server_config
3030
2837
3031
2838
# Override the settings from the config file with command line
3032
2839
# options, if set.
3033
2840
for option in ("interface", "address", "port", "debug",
3051
2858
if server_settings["debug"]:
3052
2859
server_settings["foreground"] = True
3053
2860
# Now we have our good server settings in "server_settings"
3054
2861
3055
2862
##################################################################
3056
2863
3057
2864
if (not server_settings["zeroconf"]
3058
2865
and not (server_settings["port"]
3059
2866
or server_settings["socket"] != "")):
3060
2867
parser.error("Needs port or socket to work without Zeroconf")
3061
2868
3062
2869
# For convenience
3063
2870
debug = server_settings["debug"]
3064
2871
debuglevel = server_settings["debuglevel"]
3068
2875
stored_state_file)
3069
2876
foreground = server_settings["foreground"]
3070
2877
zeroconf = server_settings["zeroconf"]
3071
2878
3072
2879
if debug:
3073
2880
initlogger(debug, logging.DEBUG)
3074
2881
else:
3077
2884
else:
3078
2885
level = getattr(logging, debuglevel.upper())
3079
2886
initlogger(debug, level)
3080
2887
3081
2888
if server_settings["servicename"] != "Mandos":
3082
2889
syslogger.setFormatter(
3083
2890
logging.Formatter('Mandos ({}) [%(process)d]:'
3084
2891
' %(levelname)s: %(message)s'.format(
3085
2892
server_settings["servicename"])))
3086
2893
3087
2894
# Parse config file with clients
3088
2895
client_config = configparser.SafeConfigParser(Client
3089
2896
.client_defaults)
3090
2897
client_config.read(os.path.join(server_settings["configdir"],
3091
2898
"clients.conf"))
3092
2899
3093
2900
global mandos_dbus_service
3094
2901
mandos_dbus_service = None
3095
2902
3096
2903
socketfd = None
3097
2904
if server_settings["socket"] != "":
3098
2905
socketfd = server_settings["socket"]
3114
2921
except IOError as e:
3115
2922
logger.error("Could not open file %r", pidfilename,
3116
2923
exc_info=e)
3117
2924
3118
2925
for name, group in (("_mandos", "_mandos"),
3119
2926
("mandos", "mandos"),
3120
2927
("nobody", "nogroup")):
3130
2937
try:
3131
2938
os.setgid(gid)
3132
2939
os.setuid(uid)
3133
if debug:
3134
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3135
gid))
3136
2940
except OSError as error:
3137
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3138
.format(uid, gid, os.strerror(error.errno)))
3139
2941
if error.errno != errno.EPERM:
3140
2942
raise
3141
2943
3142
2944
if debug:
3143
2945
# Enable all possible GnuTLS debugging
3144
2946
3145
2947
# "Use a log level over 10 to enable all debugging options."
3146
2948
# - GnuTLS manual
3147
2949
gnutls.global_set_log_level(11)
3148
2950
3149
2951
@gnutls.log_func
3150
2952
def debug_gnutls(level, string):
3151
2953
logger.debug("GnuTLS: %s", string[:-1])
3152
2954
3153
2955
gnutls.global_set_log_function(debug_gnutls)
3154
2956
3155
2957
# Redirect stdin so all checkers get /dev/null
3156
2958
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
3157
2959
os.dup2(null, sys.stdin.fileno())
3158
2960
if null > 2:
3159
2961
os.close(null)
3160
2962
3161
2963
# Need to fork before connecting to D-Bus
3162
2964
if not foreground:
3163
2965
# Close all input and output, do double fork, etc.
3164
2966
daemon()
3165
3166
# multiprocessing will use threads, so before we use GLib we need
3167
# to inform GLib that threads will be used.
3168
GLib.threads_init()
3169
2967
2968
# multiprocessing will use threads, so before we use gobject we
2969
# need to inform gobject that threads will be used.
2970
gobject.threads_init()
2971
3170
2972
global main_loop
3171
2973
# From the Avahi example code
3172
2974
DBusGMainLoop(set_as_default=True)
3173
main_loop = GLib.MainLoop()
2975
main_loop = gobject.MainLoop()
3174
2976
bus = dbus.SystemBus()
3175
2977
# End of Avahi example code
3176
2978
if use_dbus:
3189
2991
if zeroconf:
3190
2992
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3191
2993
service = AvahiServiceToSyslog(
3192
name=server_settings["servicename"],
3193
servicetype="_mandos._tcp",
3194
protocol=protocol,
3195
bus=bus)
2994
name = server_settings["servicename"],
2995
servicetype = "_mandos._tcp",
2996
protocol = protocol,
2997
bus = bus)
3196
2998
if server_settings["interface"]:
3197
2999
service.interface = if_nametoindex(
3198
3000
server_settings["interface"].encode("utf-8"))
3199
3001
3200
3002
global multiprocessing_manager
3201
3003
multiprocessing_manager = multiprocessing.Manager()
3202
3004
3203
3005
client_class = Client
3204
3006
if use_dbus:
3205
client_class = functools.partial(ClientDBus, bus=bus)
3206
3007
client_class = functools.partial(ClientDBus, bus = bus)
3008
3207
3009
client_settings = Client.config_parser(client_config)
3208
3010
old_client_settings = {}
3209
3011
clients_data = {}
3210
3012
3211
3013
# This is used to redirect stdout and stderr for checker processes
3212
3014
global wnull
3213
wnull = open(os.devnull, "w") # A writable /dev/null
3015
wnull = open(os.devnull, "w") # A writable /dev/null
3214
3016
# Only used if server is running in foreground but not in debug
3215
3017
# mode
3216
3018
if debug or not foreground:
3217
3019
wnull.close()
3218
3020
3219
3021
# Get client data and settings from last running state.
3220
3022
if server_settings["restore"]:
3221
3023
try:
3222
3024
with open(stored_state_path, "rb") as stored_state:
3223
if sys.version_info.major == 2:
3224
clients_data, old_client_settings = pickle.load(
3225
stored_state)
3226
else:
3227
bytes_clients_data, bytes_old_client_settings = (
3228
pickle.load(stored_state, encoding="bytes"))
3229
# Fix bytes to strings
3230
# clients_data
3231
# .keys()
3232
clients_data = {(key.decode("utf-8")
3233
if isinstance(key, bytes)
3234
else key): value
3235
for key, value in
3236
bytes_clients_data.items()}
3237
del bytes_clients_data
3238
for key in clients_data:
3239
value = {(k.decode("utf-8")
3240
if isinstance(k, bytes) else k): v
3241
for k, v in
3242
clients_data[key].items()}
3243
clients_data[key] = value
3244
# .client_structure
3245
value["client_structure"] = [
3246
(s.decode("utf-8")
3247
if isinstance(s, bytes)
3248
else s) for s in
3249
value["client_structure"]]
3250
# .name & .host
3251
for k in ("name", "host"):
3252
if isinstance(value[k], bytes):
3253
value[k] = value[k].decode("utf-8")
3254
if not value.has_key("key_id"):
3255
value["key_id"] = ""
3256
elif not value.has_key("fingerprint"):
3257
value["fingerprint"] = ""
3258
# old_client_settings
3259
# .keys()
3260
old_client_settings = {
3261
(key.decode("utf-8")
3262
if isinstance(key, bytes)
3263
else key): value
3264
for key, value in
3265
bytes_old_client_settings.items()}
3266
del bytes_old_client_settings
3267
# .host
3268
for value in old_client_settings.values():
3269
if isinstance(value["host"], bytes):
3270
value["host"] = (value["host"]
3271
.decode("utf-8"))
3025
clients_data, old_client_settings = pickle.load(
3026
stored_state)
3272
3027
os.remove(stored_state_path)
3273
3028
except IOError as e:
3274
3029
if e.errno == errno.ENOENT:
3282
3037
logger.warning("Could not load persistent state: "
3283
3038
"EOFError:",
3284
3039
exc_info=e)
3285
3040
3286
3041
with PGPEngine() as pgp:
3287
3042
for client_name, client in clients_data.items():
3288
3043
# Skip removed clients
3289
3044
if client_name not in client_settings:
3290
3045
continue
3291
3046
3292
3047
# Decide which value to use after restoring saved state.
3293
3048
# We have three different values: Old config file,
3294
3049
# new config file, and saved state.
3305
3060
client[name] = value
3306
3061
except KeyError:
3307
3062
pass
3308
3063
3309
3064
# Clients who has passed its expire date can still be
3310
3065
# enabled if its last checker was successful. A Client
3311
3066
# whose checker succeeded before we stored its state is
3344
3099
client_name))
3345
3100
client["secret"] = (client_settings[client_name]
3346
3101
["secret"])
3347
3102
3348
3103
# Add/remove clients based on new changes made to config
3349
3104
for client_name in (set(old_client_settings)
3350
3105
- set(client_settings)):
3352
3107
for client_name in (set(client_settings)
3353
3108
- set(old_client_settings)):
3354
3109
clients_data[client_name] = client_settings[client_name]
3355
3110
3356
3111
# Create all client objects
3357
3112
for client_name, client in clients_data.items():
3358
3113
tcp_server.clients[client_name] = client_class(
3359
name=client_name,
3360
settings=client,
3361
server_settings=server_settings)
3362
3114
name = client_name,
3115
settings = client,
3116
server_settings = server_settings)
3117
3363
3118
if not tcp_server.clients:
3364
3119
logger.warning("No clients defined")
3365
3120
3366
3121
if not foreground:
3367
3122
if pidfile is not None:
3368
3123
pid = os.getpid()
3374
3129
pidfilename, pid)
3375
3130
del pidfile
3376
3131
del pidfilename
3377
3378
for termsig in (signal.SIGHUP, signal.SIGTERM):
3379
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3380
lambda: main_loop.quit() and False)
3381
3132
3133
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
3134
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3135
3382
3136
if use_dbus:
3383
3137
3384
3138
@alternate_dbus_interfaces(
3385
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3139
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3386
3140
class MandosDBusService(DBusObjectWithObjectManager):
3387
3141
"""A D-Bus proxy object"""
3388
3142
3389
3143
def __init__(self):
3390
3144
dbus.service.Object.__init__(self, bus, "/")
3391
3145
3392
3146
_interface = "se.recompile.Mandos"
3393
3147
3394
3148
@dbus.service.signal(_interface, signature="o")
3395
3149
def ClientAdded(self, objpath):
3396
3150
"D-Bus signal"
3397
3151
pass
3398
3152
3399
3153
@dbus.service.signal(_interface, signature="ss")
3400
def ClientNotFound(self, key_id, address):
3154
def ClientNotFound(self, fingerprint, address):
3401
3155
"D-Bus signal"
3402
3156
pass
3403
3157
3404
3158
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3405
3159
"true"})
3406
3160
@dbus.service.signal(_interface, signature="os")
3407
3161
def ClientRemoved(self, objpath, name):
3408
3162
"D-Bus signal"
3409
3163
pass
3410
3164
3411
3165
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3412
3166
"true"})
3413
3167
@dbus.service.method(_interface, out_signature="ao")
3414
3168
def GetAllClients(self):
3415
3169
"D-Bus method"
3416
3170
return dbus.Array(c.dbus_object_path for c in
3417
tcp_server.clients.values())
3418
3171
tcp_server.clients.itervalues())
3172
3419
3173
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3420
3174
"true"})
3421
3175
@dbus.service.method(_interface,
3423
3177
def GetAllClientsWithProperties(self):
3424
3178
"D-Bus method"
3425
3179
return dbus.Dictionary(
3426
{c.dbus_object_path: c.GetAll(
3180
{ c.dbus_object_path: c.GetAll(
3427
3181
"se.recompile.Mandos.Client")
3428
for c in tcp_server.clients.values()},
3182
for c in tcp_server.clients.itervalues() },
3429
3183
signature="oa{sv}")
3430
3184
3431
3185
@dbus.service.method(_interface, in_signature="o")
3432
3186
def RemoveClient(self, object_path):
3433
3187
"D-Bus method"
3434
for c in tcp_server.clients.values():
3188
for c in tcp_server.clients.itervalues():
3435
3189
if c.dbus_object_path == object_path:
3436
3190
del tcp_server.clients[c.name]
3437
3191
c.remove_from_connection()
3441
3195
self.client_removed_signal(c)
3442
3196
return
3443
3197
raise KeyError(object_path)
3444
3198
3445
3199
del _interface
3446
3200
3447
3201
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3448
out_signature="a{oa{sa{sv}}}")
3202
out_signature = "a{oa{sa{sv}}}")
3449
3203
def GetManagedObjects(self):
3450
3204
"""D-Bus method"""
3451
3205
return dbus.Dictionary(
3452
{client.dbus_object_path:
3453
dbus.Dictionary(
3454
{interface: client.GetAll(interface)
3455
for interface in
3456
client._get_all_interface_names()})
3457
for client in tcp_server.clients.values()})
3458
3206
{ client.dbus_object_path:
3207
dbus.Dictionary(
3208
{ interface: client.GetAll(interface)
3209
for interface in
3210
client._get_all_interface_names()})
3211
for client in tcp_server.clients.values()})
3212
3459
3213
def client_added_signal(self, client):
3460
3214
"""Send the new standard signal and the old signal"""
3461
3215
if use_dbus:
3463
3217
self.InterfacesAdded(
3464
3218
client.dbus_object_path,
3465
3219
dbus.Dictionary(
3466
{interface: client.GetAll(interface)
3467
for interface in
3468
client._get_all_interface_names()}))
3220
{ interface: client.GetAll(interface)
3221
for interface in
3222
client._get_all_interface_names()}))
3469
3223
# Old signal
3470
3224
self.ClientAdded(client.dbus_object_path)
3471
3225
3472
3226
def client_removed_signal(self, client):
3473
3227
"""Send the new standard signal and the old signal"""
3474
3228
if use_dbus:
3479
3233
# Old signal
3480
3234
self.ClientRemoved(client.dbus_object_path,
3481
3235
client.name)
3482
3236
3483
3237
mandos_dbus_service = MandosDBusService()
3484
3485
# Save modules to variables to exempt the modules from being
3486
# unloaded before the function registered with atexit() is run.
3487
mp = multiprocessing
3488
wn = wnull
3489
3238
3490
3239
def cleanup():
3491
3240
"Cleanup function; run on exit"
3492
3241
if zeroconf:
3493
3242
service.cleanup()
3494
3495
mp.active_children()
3496
wn.close()
3243
3244
multiprocessing.active_children()
3245
wnull.close()
3497
3246
if not (tcp_server.clients or client_settings):
3498
3247
return
3499
3248
3500
3249
# Store client before exiting. Secrets are encrypted with key
3501
3250
# based on what config file has. If config file is
3502
3251
# removed/edited, old secret will thus be unrecovable.
3503
3252
clients = {}
3504
3253
with PGPEngine() as pgp:
3505
for client in tcp_server.clients.values():
3254
for client in tcp_server.clients.itervalues():
3506
3255
key = client_settings[client.name]["secret"]
3507
3256
client.encrypted_secret = pgp.encrypt(client.secret,
3508
3257
key)
3509
3258
client_dict = {}
3510
3259
3511
3260
# A list of attributes that can not be pickled
3512
3261
# + secret.
3513
exclude = {"bus", "changedstate", "secret",
3514
"checker", "server_settings"}
3262
exclude = { "bus", "changedstate", "secret",
3263
"checker", "server_settings" }
3515
3264
for name, typ in inspect.getmembers(dbus.service
3516
3265
.Object):
3517
3266
exclude.add(name)
3518
3267
3519
3268
client_dict["encrypted_secret"] = (client
3520
3269
.encrypted_secret)
3521
3270
for attr in client.client_structure:
3522
3271
if attr not in exclude:
3523
3272
client_dict[attr] = getattr(client, attr)
3524
3273
3525
3274
clients[client.name] = client_dict
3526
3275
del client_settings[client.name]["secret"]
3527
3276
3528
3277
try:
3529
3278
with tempfile.NamedTemporaryFile(
3530
3279
mode='wb',
3532
3281
prefix='clients-',
3533
3282
dir=os.path.dirname(stored_state_path),
3534
3283
delete=False) as stored_state:
3535
pickle.dump((clients, client_settings), stored_state,
3536
protocol=2)
3284
pickle.dump((clients, client_settings), stored_state)
3537
3285
tempname = stored_state.name
3538
3286
os.rename(tempname, stored_state_path)
3539
3287
except (IOError, OSError) as e:
3549
3297
logger.warning("Could not save persistent state:",
3550
3298
exc_info=e)
3551
3299
raise
3552
3300
3553
3301
# Delete all clients, and settings from config
3554
3302
while tcp_server.clients:
3555
3303
name, client = tcp_server.clients.popitem()
3561
3309
if use_dbus:
3562
3310
mandos_dbus_service.client_removed_signal(client)
3563
3311
client_settings.clear()
3564
3312
3565
3313
atexit.register(cleanup)
3566
3567
for client in tcp_server.clients.values():
3314
3315
for client in tcp_server.clients.itervalues():
3568
3316
if use_dbus:
3569
3317
# Emit D-Bus signal for adding
3570
3318
mandos_dbus_service.client_added_signal(client)
3571
3319
# Need to initiate checking of clients
3572
3320
if client.enabled:
3573
3321
client.init_checker()
3574
3322
3575
3323
tcp_server.enable()
3576
3324
tcp_server.server_activate()
3577
3325
3578
3326
# Find out what port we got
3579
3327
if zeroconf:
3580
3328
service.port = tcp_server.socket.getsockname()[1]
3585
3333
else: # IPv4
3586
3334
logger.info("Now listening on address %r, port %d",
3587
3335
*tcp_server.socket.getsockname())
3588
3589
# service.interface = tcp_server.socket.getsockname()[3]
3590
3336
3337
#service.interface = tcp_server.socket.getsockname()[3]
3338
3591
3339
try:
3592
3340
if zeroconf:
3593
3341
# From the Avahi example code
3598
3346
cleanup()
3599
3347
sys.exit(1)
3600
3348
# End of Avahi example code
3601
3602
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3603
lambda *args, **kwargs:
3604
(tcp_server.handle_request
3605
(*args[2:], **kwargs) or True))
3606
3349
3350
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3351
lambda *args, **kwargs:
3352
(tcp_server.handle_request
3353
(*args[2:], **kwargs) or True))
3354
3607
3355
logger.debug("Starting main loop")
3608
3356
main_loop.run()
3609
3357
except AvahiError as error:
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0