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- Committer: Teddy Hogeborn
- Date: 2019-08-05 21:03:31 UTC
- Revision ID: teddy@recompile.se-20190805210331-vut4mdrc129c6ycs
Override lintian warning about old debhelper format
* debian/source/lintian-overrides
(package-uses-old-debhelper-compat-version): New; set to "10".
* debian/source/lintian-overrides
(package-uses-old-debhelper-compat-version): New; set to "10".
- files added:
- debian/mandos-client.templates
- debian/tests
- dracut-module
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
1
#!/usr/bin/python
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2
# -*- mode: python; coding: utf-8 -*-
3
#
3
#
4
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# Mandos server - give out binary blobs to connecting clients.
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#
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#
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# This program is partly derived from an example program for an Avahi
7
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# service publisher, downloaded from
8
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# <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
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# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2016 Teddy Hogeborn
15
# Copyright © 2008-2016 Björn Påhlsson
16
#
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
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
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
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# Contact the authors at <mandos@recompile.se>.
32
#
33
#
33
34
34
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from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
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37
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from future_builtins import *
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
38
42
39
43
try:
40
44
import SocketServer as socketserver
76
80
77
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import dbus
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import dbus.service
79
try:
80
from gi.repository import GObject
81
except ImportError:
82
import gobject as GObject
83
import avahi
83
import gi
84
from gi.repository import GLib
84
85
from dbus.mainloop.glib import DBusGMainLoop
85
86
import ctypes
86
87
import ctypes.util
87
88
import xml.dom.minidom
88
89
import inspect
89
90
91
# Try to find the value of SO_BINDTODEVICE:
90
92
try:
93
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
94
# newer, and it is also the most natural place for it:
91
95
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
92
96
except AttributeError:
93
97
try:
98
# This is where SO_BINDTODEVICE was up to and including Python
99
# 2.6, and also 3.2:
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from IN import SO_BINDTODEVICE
95
101
except ImportError:
96
SO_BINDTODEVICE = None
102
# In Python 2.7 it seems to have been removed entirely.
103
# Try running the C preprocessor:
104
try:
105
cc = subprocess.Popen(["cc", "--language=c", "-E",
106
"/dev/stdin"],
107
stdin=subprocess.PIPE,
108
stdout=subprocess.PIPE)
109
stdout = cc.communicate(
110
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
111
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
112
except (OSError, ValueError, IndexError):
113
# No value found
114
SO_BINDTODEVICE = None
97
115
98
116
if sys.version_info.major == 2:
99
117
str = unicode
100
118
101
version = "1.7.3"
119
if sys.version_info < (3, 2):
120
configparser.Configparser = configparser.SafeConfigParser
121
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version = "1.8.6"
102
123
stored_state_file = "clients.pickle"
103
124
104
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logger = logging.getLogger()
108
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if_nametoindex = ctypes.cdll.LoadLibrary(
109
130
ctypes.util.find_library("c")).if_nametoindex
110
131
except (OSError, AttributeError):
111
132
112
133
def if_nametoindex(interface):
113
134
"Get an interface index the hard way, i.e. using fcntl()"
114
135
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
119
140
return interface_index
120
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121
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def copy_function(func):
144
"""Make a copy of a function"""
145
if sys.version_info.major == 2:
146
return types.FunctionType(func.func_code,
147
func.func_globals,
148
func.func_name,
149
func.func_defaults,
150
func.func_closure)
151
else:
152
return types.FunctionType(func.__code__,
153
func.__globals__,
154
func.__name__,
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func.__defaults__,
156
func.__closure__)
157
158
122
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def initlogger(debug, level=logging.WARNING):
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"""init logger and add loglevel"""
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global syslogger
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syslogger = (logging.handlers.SysLogHandler(
127
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
128
address = "/dev/log"))
164
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
165
address="/dev/log"))
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syslogger.setFormatter(logging.Formatter
130
167
('Mandos [%(process)d]: %(levelname)s:'
131
168
' %(message)s'))
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logger.addHandler(syslogger)
133
170
134
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if debug:
135
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console = logging.StreamHandler()
136
173
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
148
185
149
186
class PGPEngine(object):
150
187
"""A simple class for OpenPGP symmetric encryption & decryption"""
151
188
152
189
def __init__(self):
153
190
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
154
191
self.gpg = "gpg"
155
192
try:
156
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output = subprocess.check_output(["gpgconf"])
157
194
for line in output.splitlines():
158
name, text, path = line.split(":")
195
name, text, path = line.split(b":")
159
196
if name == "gpg":
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self.gpg = path
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break
165
202
self.gnupgargs = ['--batch',
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'--homedir', self.tempdir,
167
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'--force-mdc',
168
'--quiet',
169
'--no-use-agent']
170
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'--quiet']
206
# Only GPG version 1 has the --no-use-agent option.
207
if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
208
self.gnupgargs.append("--no-use-agent")
209
171
210
def __enter__(self):
172
211
return self
173
212
174
213
def __exit__(self, exc_type, exc_value, traceback):
175
214
self._cleanup()
176
215
return False
177
216
178
217
def __del__(self):
179
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self._cleanup()
180
219
181
220
def _cleanup(self):
182
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if self.tempdir is not None:
183
222
# Delete contents of tempdir
184
223
for root, dirs, files in os.walk(self.tempdir,
185
topdown = False):
224
topdown=False):
186
225
for filename in files:
187
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os.remove(os.path.join(root, filename))
188
227
for dirname in dirs:
190
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# Remove tempdir
191
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os.rmdir(self.tempdir)
192
231
self.tempdir = None
193
232
194
233
def password_encode(self, password):
195
234
# Passphrase can not be empty and can not contain newlines or
196
235
# NUL bytes. So we prefix it and hex encode it.
201
240
.replace(b"\n", b"\\n")
202
241
.replace(b"\0", b"\\x00"))
203
242
return encoded
204
243
205
244
def encrypt(self, data, password):
206
245
passphrase = self.password_encode(password)
207
246
with tempfile.NamedTemporaryFile(
212
251
'--passphrase-file',
213
252
passfile.name]
214
253
+ self.gnupgargs,
215
stdin = subprocess.PIPE,
216
stdout = subprocess.PIPE,
217
stderr = subprocess.PIPE)
218
ciphertext, err = proc.communicate(input = data)
254
stdin=subprocess.PIPE,
255
stdout=subprocess.PIPE,
256
stderr=subprocess.PIPE)
257
ciphertext, err = proc.communicate(input=data)
219
258
if proc.returncode != 0:
220
259
raise PGPError(err)
221
260
return ciphertext
222
261
223
262
def decrypt(self, data, password):
224
263
passphrase = self.password_encode(password)
225
264
with tempfile.NamedTemporaryFile(
226
dir = self.tempdir) as passfile:
265
dir=self.tempdir) as passfile:
227
266
passfile.write(passphrase)
228
267
passfile.flush()
229
268
proc = subprocess.Popen([self.gpg, '--decrypt',
230
269
'--passphrase-file',
231
270
passfile.name]
232
271
+ self.gnupgargs,
233
stdin = subprocess.PIPE,
234
stdout = subprocess.PIPE,
235
stderr = subprocess.PIPE)
236
decrypted_plaintext, err = proc.communicate(input = data)
272
stdin=subprocess.PIPE,
273
stdout=subprocess.PIPE,
274
stderr=subprocess.PIPE)
275
decrypted_plaintext, err = proc.communicate(input=data)
237
276
if proc.returncode != 0:
238
277
raise PGPError(err)
239
278
return decrypted_plaintext
240
279
241
280
281
# Pretend that we have an Avahi module
282
class avahi(object):
283
"""This isn't so much a class as it is a module-like namespace."""
284
IF_UNSPEC = -1 # avahi-common/address.h
285
PROTO_UNSPEC = -1 # avahi-common/address.h
286
PROTO_INET = 0 # avahi-common/address.h
287
PROTO_INET6 = 1 # avahi-common/address.h
288
DBUS_NAME = "org.freedesktop.Avahi"
289
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
290
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
291
DBUS_PATH_SERVER = "/"
292
293
@staticmethod
294
def string_array_to_txt_array(t):
295
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
296
for s in t), signature="ay")
297
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
298
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
299
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
300
SERVER_INVALID = 0 # avahi-common/defs.h
301
SERVER_REGISTERING = 1 # avahi-common/defs.h
302
SERVER_RUNNING = 2 # avahi-common/defs.h
303
SERVER_COLLISION = 3 # avahi-common/defs.h
304
SERVER_FAILURE = 4 # avahi-common/defs.h
305
306
242
307
class AvahiError(Exception):
243
308
def __init__(self, value, *args, **kwargs):
244
309
self.value = value
256
321
257
322
class AvahiService(object):
258
323
"""An Avahi (Zeroconf) service.
259
324
260
325
Attributes:
261
326
interface: integer; avahi.IF_UNSPEC or an interface index.
262
327
Used to optionally bind to the specified interface.
274
339
server: D-Bus Server
275
340
bus: dbus.SystemBus()
276
341
"""
277
342
278
343
def __init__(self,
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):
344
interface=avahi.IF_UNSPEC,
345
name=None,
346
servicetype=None,
347
port=None,
348
TXT=None,
349
domain="",
350
host="",
351
max_renames=32768,
352
protocol=avahi.PROTO_UNSPEC,
353
bus=None):
289
354
self.interface = interface
290
355
self.name = name
291
356
self.type = servicetype
300
365
self.server = None
301
366
self.bus = bus
302
367
self.entry_group_state_changed_match = None
303
368
304
369
def rename(self, remove=True):
305
370
"""Derived from the Avahi example code"""
306
371
if self.rename_count >= self.max_renames:
326
391
logger.critical("D-Bus Exception", exc_info=error)
327
392
self.cleanup()
328
393
os._exit(1)
329
394
330
395
def remove(self):
331
396
"""Derived from the Avahi example code"""
332
397
if self.entry_group_state_changed_match is not None:
334
399
self.entry_group_state_changed_match = None
335
400
if self.group is not None:
336
401
self.group.Reset()
337
402
338
403
def add(self):
339
404
"""Derived from the Avahi example code"""
340
405
self.remove()
357
422
dbus.UInt16(self.port),
358
423
avahi.string_array_to_txt_array(self.TXT))
359
424
self.group.Commit()
360
425
361
426
def entry_group_state_changed(self, state, error):
362
427
"""Derived from the Avahi example code"""
363
428
logger.debug("Avahi entry group state change: %i", state)
364
429
365
430
if state == avahi.ENTRY_GROUP_ESTABLISHED:
366
431
logger.debug("Zeroconf service established.")
367
432
elif state == avahi.ENTRY_GROUP_COLLISION:
371
436
logger.critical("Avahi: Error in group state changed %s",
372
437
str(error))
373
438
raise AvahiGroupError("State changed: {!s}".format(error))
374
439
375
440
def cleanup(self):
376
441
"""Derived from the Avahi example code"""
377
442
if self.group is not None:
382
447
pass
383
448
self.group = None
384
449
self.remove()
385
450
386
451
def server_state_changed(self, state, error=None):
387
452
"""Derived from the Avahi example code"""
388
453
logger.debug("Avahi server state change: %i", state)
417
482
logger.debug("Unknown state: %r", state)
418
483
else:
419
484
logger.debug("Unknown state: %r: %r", state, error)
420
485
421
486
def activate(self):
422
487
"""Derived from the Avahi example code"""
423
488
if self.server is None:
434
499
class AvahiServiceToSyslog(AvahiService):
435
500
def rename(self, *args, **kwargs):
436
501
"""Add the new name to the syslog messages"""
437
ret = AvahiService.rename(self, *args, **kwargs)
502
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
438
503
syslogger.setFormatter(logging.Formatter(
439
504
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
440
505
.format(self.name)))
441
506
return ret
442
507
508
443
509
# Pretend that we have a GnuTLS module
444
class GnuTLS(object):
445
"""This isn't so much a class as it is a module-like namespace.
446
It is instantiated once, and simulates having a GnuTLS module."""
447
448
_library = ctypes.cdll.LoadLibrary(
449
ctypes.util.find_library("gnutls"))
450
_need_version = "3.3.0"
451
def __init__(self):
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
510
class gnutls(object):
511
"""This isn't so much a class as it is a module-like namespace."""
512
513
library = ctypes.util.find_library("gnutls")
514
if library is None:
515
library = ctypes.util.find_library("gnutls-deb0")
516
_library = ctypes.cdll.LoadLibrary(library)
517
del library
518
459
519
# Unless otherwise indicated, the constants and types below are
460
520
# all from the gnutls/gnutls.h C header file.
461
521
462
522
# Constants
463
523
E_SUCCESS = 0
464
524
E_INTERRUPTED = -52
465
525
E_AGAIN = -28
466
526
CRT_OPENPGP = 2
527
CRT_RAWPK = 3
467
528
CLIENT = 2
468
529
SHUT_RDWR = 0
469
530
CRD_CERTIFICATE = 1
470
531
E_NO_CERTIFICATE_FOUND = -49
532
X509_FMT_DER = 0
533
NO_TICKETS = 1<<10
534
ENABLE_RAWPK = 1<<18
535
CTYPE_PEERS = 3
536
KEYID_USE_SHA256 = 1 # gnutls/x509.h
471
537
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
472
538
473
539
# Types
474
540
class session_int(ctypes.Structure):
475
541
_fields_ = []
476
542
session_t = ctypes.POINTER(session_int)
543
477
544
class certificate_credentials_st(ctypes.Structure):
478
545
_fields_ = []
479
546
certificate_credentials_t = ctypes.POINTER(
480
547
certificate_credentials_st)
481
548
certificate_type_t = ctypes.c_int
549
482
550
class datum_t(ctypes.Structure):
483
551
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
484
552
('size', ctypes.c_uint)]
553
485
554
class openpgp_crt_int(ctypes.Structure):
486
555
_fields_ = []
487
556
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
488
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
557
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
489
558
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
490
credentials_type_t = ctypes.c_int #
559
credentials_type_t = ctypes.c_int
491
560
transport_ptr_t = ctypes.c_void_p
492
561
close_request_t = ctypes.c_int
493
562
494
563
# Exceptions
495
564
class Error(Exception):
496
# We need to use the class name "GnuTLS" here, since this
497
# exception might be raised from within GnuTLS.__init__,
498
# which is called before the assignment to the "gnutls"
499
# global variable has happened.
500
def __init__(self, message = None, code = None, args=()):
565
def __init__(self, message=None, code=None, args=()):
501
566
# Default usage is by a message string, but if a return
502
567
# code is passed, convert it to a string with
503
568
# gnutls.strerror()
504
569
self.code = code
505
570
if message is None and code is not None:
506
message = GnuTLS.strerror(code)
507
return super(GnuTLS.Error, self).__init__(
571
message = gnutls.strerror(code)
572
return super(gnutls.Error, self).__init__(
508
573
message, *args)
509
574
510
575
class CertificateSecurityError(Error):
511
576
pass
512
577
513
578
# Classes
514
579
class Credentials(object):
515
580
def __init__(self):
517
582
gnutls.certificate_allocate_credentials(
518
583
ctypes.byref(self._c_object))
519
584
self.type = gnutls.CRD_CERTIFICATE
520
585
521
586
def __del__(self):
522
587
gnutls.certificate_free_credentials(self._c_object)
523
588
524
589
class ClientSession(object):
525
def __init__(self, socket, credentials = None):
590
def __init__(self, socket, credentials=None):
526
591
self._c_object = gnutls.session_t()
527
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
592
gnutls_flags = gnutls.CLIENT
593
if gnutls.check_version(b"3.5.6"):
594
gnutls_flags |= gnutls.NO_TICKETS
595
if gnutls.has_rawpk:
596
gnutls_flags |= gnutls.ENABLE_RAWPK
597
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
598
del gnutls_flags
528
599
gnutls.set_default_priority(self._c_object)
529
600
gnutls.transport_set_ptr(self._c_object, socket.fileno())
530
601
gnutls.handshake_set_private_extensions(self._c_object,
536
607
ctypes.cast(credentials._c_object,
537
608
ctypes.c_void_p))
538
609
self.credentials = credentials
539
610
540
611
def __del__(self):
541
612
gnutls.deinit(self._c_object)
542
613
543
614
def handshake(self):
544
615
return gnutls.handshake(self._c_object)
545
616
546
617
def send(self, data):
547
618
data = bytes(data)
548
619
data_len = len(data)
550
621
data_len -= gnutls.record_send(self._c_object,
551
622
data[-data_len:],
552
623
data_len)
553
624
554
625
def bye(self):
555
626
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
556
627
557
628
# Error handling functions
558
629
def _error_code(result):
559
630
"""A function to raise exceptions on errors, suitable
561
632
if result >= 0:
562
633
return result
563
634
if result == gnutls.E_NO_CERTIFICATE_FOUND:
564
raise gnutls.CertificateSecurityError(code = result)
565
raise gnutls.Error(code = result)
566
635
raise gnutls.CertificateSecurityError(code=result)
636
raise gnutls.Error(code=result)
637
567
638
def _retry_on_error(result, func, arguments):
568
639
"""A function to retry on some errors, suitable
569
640
for the 'errcheck' attribute on ctypes functions"""
572
643
return _error_code(result)
573
644
result = func(*arguments)
574
645
return result
575
646
576
647
# Unless otherwise indicated, the function declarations below are
577
648
# all from the gnutls/gnutls.h C header file.
578
649
579
650
# Functions
580
651
priority_set_direct = _library.gnutls_priority_set_direct
581
652
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
582
653
ctypes.POINTER(ctypes.c_char_p)]
583
654
priority_set_direct.restype = _error_code
584
655
585
656
init = _library.gnutls_init
586
657
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
587
658
init.restype = _error_code
588
659
589
660
set_default_priority = _library.gnutls_set_default_priority
590
661
set_default_priority.argtypes = [session_t]
591
662
set_default_priority.restype = _error_code
592
663
593
664
record_send = _library.gnutls_record_send
594
665
record_send.argtypes = [session_t, ctypes.c_void_p,
595
666
ctypes.c_size_t]
596
667
record_send.restype = ctypes.c_ssize_t
597
668
record_send.errcheck = _retry_on_error
598
669
599
670
certificate_allocate_credentials = (
600
671
_library.gnutls_certificate_allocate_credentials)
601
672
certificate_allocate_credentials.argtypes = [
602
673
ctypes.POINTER(certificate_credentials_t)]
603
674
certificate_allocate_credentials.restype = _error_code
604
675
605
676
certificate_free_credentials = (
606
677
_library.gnutls_certificate_free_credentials)
607
certificate_free_credentials.argtypes = [certificate_credentials_t]
678
certificate_free_credentials.argtypes = [
679
certificate_credentials_t]
608
680
certificate_free_credentials.restype = None
609
681
610
682
handshake_set_private_extensions = (
611
683
_library.gnutls_handshake_set_private_extensions)
612
684
handshake_set_private_extensions.argtypes = [session_t,
613
685
ctypes.c_int]
614
686
handshake_set_private_extensions.restype = None
615
687
616
688
credentials_set = _library.gnutls_credentials_set
617
689
credentials_set.argtypes = [session_t, credentials_type_t,
618
690
ctypes.c_void_p]
619
691
credentials_set.restype = _error_code
620
692
621
693
strerror = _library.gnutls_strerror
622
694
strerror.argtypes = [ctypes.c_int]
623
695
strerror.restype = ctypes.c_char_p
624
696
625
697
certificate_type_get = _library.gnutls_certificate_type_get
626
698
certificate_type_get.argtypes = [session_t]
627
699
certificate_type_get.restype = _error_code
628
700
629
701
certificate_get_peers = _library.gnutls_certificate_get_peers
630
702
certificate_get_peers.argtypes = [session_t,
631
703
ctypes.POINTER(ctypes.c_uint)]
632
704
certificate_get_peers.restype = ctypes.POINTER(datum_t)
633
705
634
706
global_set_log_level = _library.gnutls_global_set_log_level
635
707
global_set_log_level.argtypes = [ctypes.c_int]
636
708
global_set_log_level.restype = None
637
709
638
710
global_set_log_function = _library.gnutls_global_set_log_function
639
711
global_set_log_function.argtypes = [log_func]
640
712
global_set_log_function.restype = None
641
713
642
714
deinit = _library.gnutls_deinit
643
715
deinit.argtypes = [session_t]
644
716
deinit.restype = None
645
717
646
718
handshake = _library.gnutls_handshake
647
719
handshake.argtypes = [session_t]
648
720
handshake.restype = _error_code
649
721
handshake.errcheck = _retry_on_error
650
722
651
723
transport_set_ptr = _library.gnutls_transport_set_ptr
652
724
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
653
725
transport_set_ptr.restype = None
654
726
655
727
bye = _library.gnutls_bye
656
728
bye.argtypes = [session_t, close_request_t]
657
729
bye.restype = _error_code
658
730
bye.errcheck = _retry_on_error
659
731
660
732
check_version = _library.gnutls_check_version
661
733
check_version.argtypes = [ctypes.c_char_p]
662
734
check_version.restype = ctypes.c_char_p
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
735
736
_need_version = b"3.3.0"
737
if check_version(_need_version) is None:
738
raise self.Error("Needs GnuTLS {} or later"
739
.format(_need_version))
740
741
_tls_rawpk_version = b"3.6.6"
742
has_rawpk = bool(check_version(_tls_rawpk_version))
743
744
if has_rawpk:
745
# Types
746
class pubkey_st(ctypes.Structure):
747
_fields = []
748
pubkey_t = ctypes.POINTER(pubkey_st)
749
750
x509_crt_fmt_t = ctypes.c_int
751
752
# All the function declarations below are from gnutls/abstract.h
753
pubkey_init = _library.gnutls_pubkey_init
754
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
755
pubkey_init.restype = _error_code
756
757
pubkey_import = _library.gnutls_pubkey_import
758
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
759
x509_crt_fmt_t]
760
pubkey_import.restype = _error_code
761
762
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
763
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
764
ctypes.POINTER(ctypes.c_ubyte),
765
ctypes.POINTER(ctypes.c_size_t)]
766
pubkey_get_key_id.restype = _error_code
767
768
pubkey_deinit = _library.gnutls_pubkey_deinit
769
pubkey_deinit.argtypes = [pubkey_t]
770
pubkey_deinit.restype = None
771
else:
772
# All the function declarations below are from gnutls/openpgp.h
773
774
openpgp_crt_init = _library.gnutls_openpgp_crt_init
775
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
776
openpgp_crt_init.restype = _error_code
777
778
openpgp_crt_import = _library.gnutls_openpgp_crt_import
779
openpgp_crt_import.argtypes = [openpgp_crt_t,
780
ctypes.POINTER(datum_t),
781
openpgp_crt_fmt_t]
782
openpgp_crt_import.restype = _error_code
783
784
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
785
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
786
ctypes.POINTER(ctypes.c_uint)]
787
openpgp_crt_verify_self.restype = _error_code
788
789
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
790
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
791
openpgp_crt_deinit.restype = None
792
793
openpgp_crt_get_fingerprint = (
794
_library.gnutls_openpgp_crt_get_fingerprint)
795
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
796
ctypes.c_void_p,
797
ctypes.POINTER(
798
ctypes.c_size_t)]
799
openpgp_crt_get_fingerprint.restype = _error_code
800
801
if check_version(b"3.6.4"):
802
certificate_type_get2 = _library.gnutls_certificate_type_get2
803
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
804
certificate_type_get2.restype = _error_code
805
693
806
# Remove non-public functions
694
807
del _error_code, _retry_on_error
695
# Create the global "gnutls" object, simulating a module
696
gnutls = GnuTLS()
808
697
809
698
810
def call_pipe(connection, # : multiprocessing.Connection
699
811
func, *args, **kwargs):
700
812
"""This function is meant to be called by multiprocessing.Process
701
813
702
814
This function runs func(*args, **kwargs), and writes the resulting
703
815
return value on the provided multiprocessing.Connection.
704
816
"""
705
817
connection.send(func(*args, **kwargs))
706
818
connection.close()
707
819
820
708
821
class Client(object):
709
822
"""A representation of a client host served by this server.
710
823
711
824
Attributes:
712
825
approved: bool(); 'None' if not yet approved/disapproved
713
826
approval_delay: datetime.timedelta(); Time to wait for approval
714
827
approval_duration: datetime.timedelta(); Duration of one approval
715
checker: subprocess.Popen(); a running checker process used
716
to see if the client lives.
717
'None' if no process is running.
718
checker_callback_tag: a GObject event source tag, or None
828
checker: multiprocessing.Process(); a running checker process used
829
to see if the client lives. 'None' if no process is
830
running.
831
checker_callback_tag: a GLib event source tag, or None
719
832
checker_command: string; External command which is run to check
720
833
if client lives. %() expansions are done at
721
834
runtime with vars(self) as dict, so that for
722
835
instance %(name)s can be used in the command.
723
checker_initiator_tag: a GObject event source tag, or None
836
checker_initiator_tag: a GLib event source tag, or None
724
837
created: datetime.datetime(); (UTC) object creation
725
838
client_structure: Object describing what attributes a client has
726
839
and is used for storing the client at exit
727
840
current_checker_command: string; current running checker_command
728
disable_initiator_tag: a GObject event source tag, or None
841
disable_initiator_tag: a GLib event source tag, or None
729
842
enabled: bool()
730
843
fingerprint: string (40 or 32 hexadecimal digits); used to
731
uniquely identify the client
844
uniquely identify an OpenPGP client
845
key_id: string (64 hexadecimal digits); used to uniquely identify
846
a client using raw public keys
732
847
host: string; available for use by the checker command
733
848
interval: datetime.timedelta(); How often to start a new checker
734
849
last_approval_request: datetime.datetime(); (UTC) or None
750
865
disabled, or None
751
866
server_settings: The server_settings dict from main()
752
867
"""
753
868
754
869
runtime_expansions = ("approval_delay", "approval_duration",
755
"created", "enabled", "expires",
870
"created", "enabled", "expires", "key_id",
756
871
"fingerprint", "host", "interval",
757
872
"last_approval_request", "last_checked_ok",
758
873
"last_enabled", "name", "timeout")
767
882
"approved_by_default": "True",
768
883
"enabled": "True",
769
884
}
770
885
771
886
@staticmethod
772
887
def config_parser(config):
773
888
"""Construct a new dict of client settings of this form:
780
895
for client_name in config.sections():
781
896
section = dict(config.items(client_name))
782
897
client = settings[client_name] = {}
783
898
784
899
client["host"] = section["host"]
785
900
# Reformat values from string types to Python types
786
901
client["approved_by_default"] = config.getboolean(
787
902
client_name, "approved_by_default")
788
903
client["enabled"] = config.getboolean(client_name,
789
904
"enabled")
790
791
# Uppercase and remove spaces from fingerprint for later
792
# comparison purposes with return value from the
793
# fingerprint() function
905
906
# Uppercase and remove spaces from key_id and fingerprint
907
# for later comparison purposes with return value from the
908
# key_id() and fingerprint() functions
909
client["key_id"] = (section.get("key_id", "").upper()
910
.replace(" ", ""))
794
911
client["fingerprint"] = (section["fingerprint"].upper()
795
912
.replace(" ", ""))
796
913
if "secret" in section:
797
client["secret"] = section["secret"].decode("base64")
914
client["secret"] = codecs.decode(section["secret"]
915
.encode("utf-8"),
916
"base64")
798
917
elif "secfile" in section:
799
918
with open(os.path.expanduser(os.path.expandvars
800
919
(section["secfile"])),
815
934
client["last_approval_request"] = None
816
935
client["last_checked_ok"] = None
817
936
client["last_checker_status"] = -2
818
937
819
938
return settings
820
821
def __init__(self, settings, name = None, server_settings=None):
939
940
def __init__(self, settings, name=None, server_settings=None):
822
941
self.name = name
823
942
if server_settings is None:
824
943
server_settings = {}
826
945
# adding all client settings
827
946
for setting, value in settings.items():
828
947
setattr(self, setting, value)
829
948
830
949
if self.enabled:
831
950
if not hasattr(self, "last_enabled"):
832
951
self.last_enabled = datetime.datetime.utcnow()
836
955
else:
837
956
self.last_enabled = None
838
957
self.expires = None
839
958
840
959
logger.debug("Creating client %r", self.name)
960
logger.debug(" Key ID: %s", self.key_id)
841
961
logger.debug(" Fingerprint: %s", self.fingerprint)
842
962
self.created = settings.get("created",
843
963
datetime.datetime.utcnow())
844
964
845
965
# attributes specific for this server instance
846
966
self.checker = None
847
967
self.checker_initiator_tag = None
853
973
self.changedstate = multiprocessing_manager.Condition(
854
974
multiprocessing_manager.Lock())
855
975
self.client_structure = [attr
856
for attr in self.__dict__.iterkeys()
976
for attr in self.__dict__.keys()
857
977
if not attr.startswith("_")]
858
978
self.client_structure.append("client_structure")
859
979
860
980
for name, t in inspect.getmembers(
861
981
type(self), lambda obj: isinstance(obj, property)):
862
982
if not name.startswith("_"):
863
983
self.client_structure.append(name)
864
984
865
985
# Send notice to process children that client state has changed
866
986
def send_changedstate(self):
867
987
with self.changedstate:
868
988
self.changedstate.notify_all()
869
989
870
990
def enable(self):
871
991
"""Start this client's checker and timeout hooks"""
872
992
if getattr(self, "enabled", False):
877
997
self.last_enabled = datetime.datetime.utcnow()
878
998
self.init_checker()
879
999
self.send_changedstate()
880
1000
881
1001
def disable(self, quiet=True):
882
1002
"""Disable this client."""
883
1003
if not getattr(self, "enabled", False):
885
1005
if not quiet:
886
1006
logger.info("Disabling client %s", self.name)
887
1007
if getattr(self, "disable_initiator_tag", None) is not None:
888
GObject.source_remove(self.disable_initiator_tag)
1008
GLib.source_remove(self.disable_initiator_tag)
889
1009
self.disable_initiator_tag = None
890
1010
self.expires = None
891
1011
if getattr(self, "checker_initiator_tag", None) is not None:
892
GObject.source_remove(self.checker_initiator_tag)
1012
GLib.source_remove(self.checker_initiator_tag)
893
1013
self.checker_initiator_tag = None
894
1014
self.stop_checker()
895
1015
self.enabled = False
896
1016
if not quiet:
897
1017
self.send_changedstate()
898
# Do not run this again if called by a GObject.timeout_add
1018
# Do not run this again if called by a GLib.timeout_add
899
1019
return False
900
1020
901
1021
def __del__(self):
902
1022
self.disable()
903
1023
904
1024
def init_checker(self):
905
1025
# Schedule a new checker to be started an 'interval' from now,
906
1026
# and every interval from then on.
907
1027
if self.checker_initiator_tag is not None:
908
GObject.source_remove(self.checker_initiator_tag)
909
self.checker_initiator_tag = GObject.timeout_add(
1028
GLib.source_remove(self.checker_initiator_tag)
1029
self.checker_initiator_tag = GLib.timeout_add(
910
1030
int(self.interval.total_seconds() * 1000),
911
1031
self.start_checker)
912
1032
# Schedule a disable() when 'timeout' has passed
913
1033
if self.disable_initiator_tag is not None:
914
GObject.source_remove(self.disable_initiator_tag)
915
self.disable_initiator_tag = GObject.timeout_add(
1034
GLib.source_remove(self.disable_initiator_tag)
1035
self.disable_initiator_tag = GLib.timeout_add(
916
1036
int(self.timeout.total_seconds() * 1000), self.disable)
917
1037
# Also start a new checker *right now*.
918
1038
self.start_checker()
919
1039
920
1040
def checker_callback(self, source, condition, connection,
921
1041
command):
922
1042
"""The checker has completed, so take appropriate actions."""
923
self.checker_callback_tag = None
924
self.checker = None
925
1043
# Read return code from connection (see call_pipe)
926
1044
returncode = connection.recv()
927
1045
connection.close()
928
1046
self.checker.join()
1047
self.checker_callback_tag = None
1048
self.checker = None
1049
929
1050
if returncode >= 0:
930
1051
self.last_checker_status = returncode
931
1052
self.last_checker_signal = None
941
1062
logger.warning("Checker for %(name)s crashed?",
942
1063
vars(self))
943
1064
return False
944
1065
945
1066
def checked_ok(self):
946
1067
"""Assert that the client has been seen, alive and well."""
947
1068
self.last_checked_ok = datetime.datetime.utcnow()
948
1069
self.last_checker_status = 0
949
1070
self.last_checker_signal = None
950
1071
self.bump_timeout()
951
1072
952
1073
def bump_timeout(self, timeout=None):
953
1074
"""Bump up the timeout for this client."""
954
1075
if timeout is None:
955
1076
timeout = self.timeout
956
1077
if self.disable_initiator_tag is not None:
957
GObject.source_remove(self.disable_initiator_tag)
1078
GLib.source_remove(self.disable_initiator_tag)
958
1079
self.disable_initiator_tag = None
959
1080
if getattr(self, "enabled", False):
960
self.disable_initiator_tag = GObject.timeout_add(
1081
self.disable_initiator_tag = GLib.timeout_add(
961
1082
int(timeout.total_seconds() * 1000), self.disable)
962
1083
self.expires = datetime.datetime.utcnow() + timeout
963
1084
964
1085
def need_approval(self):
965
1086
self.last_approval_request = datetime.datetime.utcnow()
966
1087
967
1088
def start_checker(self):
968
1089
"""Start a new checker subprocess if one is not running.
969
1090
970
1091
If a checker already exists, leave it running and do
971
1092
nothing."""
972
1093
# The reason for not killing a running checker is that if we
977
1098
# checkers alone, the checker would have to take more time
978
1099
# than 'timeout' for the client to be disabled, which is as it
979
1100
# should be.
980
1101
981
1102
if self.checker is not None and not self.checker.is_alive():
982
1103
logger.warning("Checker was not alive; joining")
983
1104
self.checker.join()
987
1108
# Escape attributes for the shell
988
1109
escaped_attrs = {
989
1110
attr: re.escape(str(getattr(self, attr)))
990
for attr in self.runtime_expansions }
1111
for attr in self.runtime_expansions}
991
1112
try:
992
1113
command = self.checker_command % escaped_attrs
993
1114
except TypeError as error:
1005
1126
# The exception is when not debugging but nevertheless
1006
1127
# running in the foreground; use the previously
1007
1128
# created wnull.
1008
popen_args = { "close_fds": True,
1009
"shell": True,
1010
"cwd": "/" }
1129
popen_args = {"close_fds": True,
1130
"shell": True,
1131
"cwd": "/"}
1011
1132
if (not self.server_settings["debug"]
1012
1133
and self.server_settings["foreground"]):
1013
1134
popen_args.update({"stdout": wnull,
1014
"stderr": wnull })
1015
pipe = multiprocessing.Pipe(duplex = False)
1135
"stderr": wnull})
1136
pipe = multiprocessing.Pipe(duplex=False)
1016
1137
self.checker = multiprocessing.Process(
1017
target = call_pipe,
1018
args = (pipe[1], subprocess.call, command),
1019
kwargs = popen_args)
1138
target=call_pipe,
1139
args=(pipe[1], subprocess.call, command),
1140
kwargs=popen_args)
1020
1141
self.checker.start()
1021
self.checker_callback_tag = GObject.io_add_watch(
1022
pipe[0].fileno(), GObject.IO_IN,
1142
self.checker_callback_tag = GLib.io_add_watch(
1143
pipe[0].fileno(), GLib.IO_IN,
1023
1144
self.checker_callback, pipe[0], command)
1024
# Re-run this periodically if run by GObject.timeout_add
1145
# Re-run this periodically if run by GLib.timeout_add
1025
1146
return True
1026
1147
1027
1148
def stop_checker(self):
1028
1149
"""Force the checker process, if any, to stop."""
1029
1150
if self.checker_callback_tag:
1030
GObject.source_remove(self.checker_callback_tag)
1151
GLib.source_remove(self.checker_callback_tag)
1031
1152
self.checker_callback_tag = None
1032
1153
if getattr(self, "checker", None) is None:
1033
1154
return
1042
1163
byte_arrays=False):
1043
1164
"""Decorators for marking methods of a DBusObjectWithProperties to
1044
1165
become properties on the D-Bus.
1045
1166
1046
1167
The decorated method will be called with no arguments by "Get"
1047
1168
and with one argument by "Set".
1048
1169
1049
1170
The parameters, where they are supported, are the same as
1050
1171
dbus.service.method, except there is only "signature", since the
1051
1172
type from Get() and the type sent to Set() is the same.
1055
1176
if byte_arrays and signature != "ay":
1056
1177
raise ValueError("Byte arrays not supported for non-'ay'"
1057
1178
" signature {!r}".format(signature))
1058
1179
1059
1180
def decorator(func):
1060
1181
func._dbus_is_property = True
1061
1182
func._dbus_interface = dbus_interface
1064
1185
func._dbus_name = func.__name__
1065
1186
if func._dbus_name.endswith("_dbus_property"):
1066
1187
func._dbus_name = func._dbus_name[:-14]
1067
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1188
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1068
1189
return func
1069
1190
1070
1191
return decorator
1071
1192
1072
1193
1073
1194
def dbus_interface_annotations(dbus_interface):
1074
1195
"""Decorator for marking functions returning interface annotations
1075
1196
1076
1197
Usage:
1077
1198
1078
1199
@dbus_interface_annotations("org.example.Interface")
1079
1200
def _foo(self): # Function name does not matter
1080
1201
return {"org.freedesktop.DBus.Deprecated": "true",
1081
1202
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1082
1203
"false"}
1083
1204
"""
1084
1205
1085
1206
def decorator(func):
1086
1207
func._dbus_is_interface = True
1087
1208
func._dbus_interface = dbus_interface
1088
1209
func._dbus_name = dbus_interface
1089
1210
return func
1090
1211
1091
1212
return decorator
1092
1213
1093
1214
1094
1215
def dbus_annotations(annotations):
1095
1216
"""Decorator to annotate D-Bus methods, signals or properties
1096
1217
Usage:
1097
1218
1098
1219
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1099
1220
"org.freedesktop.DBus.Property."
1100
1221
"EmitsChangedSignal": "false"})
1102
1223
access="r")
1103
1224
def Property_dbus_property(self):
1104
1225
return dbus.Boolean(False)
1105
1226
1106
1227
See also the DBusObjectWithAnnotations class.
1107
1228
"""
1108
1229
1109
1230
def decorator(func):
1110
1231
func._dbus_annotations = annotations
1111
1232
return func
1112
1233
1113
1234
return decorator
1114
1235
1115
1236
1133
1254
1134
1255
class DBusObjectWithAnnotations(dbus.service.Object):
1135
1256
"""A D-Bus object with annotations.
1136
1257
1137
1258
Classes inheriting from this can use the dbus_annotations
1138
1259
decorator to add annotations to methods or signals.
1139
1260
"""
1140
1261
1141
1262
@staticmethod
1142
1263
def _is_dbus_thing(thing):
1143
1264
"""Returns a function testing if an attribute is a D-Bus thing
1144
1265
1145
1266
If called like _is_dbus_thing("method") it returns a function
1146
1267
suitable for use as predicate to inspect.getmembers().
1147
1268
"""
1148
1269
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1149
1270
False)
1150
1271
1151
1272
def _get_all_dbus_things(self, thing):
1152
1273
"""Returns a generator of (name, attribute) pairs
1153
1274
"""
1156
1277
for cls in self.__class__.__mro__
1157
1278
for name, athing in
1158
1279
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1159
1280
1160
1281
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1161
out_signature = "s",
1162
path_keyword = 'object_path',
1163
connection_keyword = 'connection')
1282
out_signature="s",
1283
path_keyword='object_path',
1284
connection_keyword='connection')
1164
1285
def Introspect(self, object_path, connection):
1165
1286
"""Overloading of standard D-Bus method.
1166
1287
1167
1288
Inserts annotation tags on methods and signals.
1168
1289
"""
1169
1290
xmlstring = dbus.service.Object.Introspect(self, object_path,
1170
1291
connection)
1171
1292
try:
1172
1293
document = xml.dom.minidom.parseString(xmlstring)
1173
1294
1174
1295
for if_tag in document.getElementsByTagName("interface"):
1175
1296
# Add annotation tags
1176
1297
for typ in ("method", "signal"):
1203
1324
if_tag.appendChild(ann_tag)
1204
1325
# Fix argument name for the Introspect method itself
1205
1326
if (if_tag.getAttribute("name")
1206
== dbus.INTROSPECTABLE_IFACE):
1327
== dbus.INTROSPECTABLE_IFACE):
1207
1328
for cn in if_tag.getElementsByTagName("method"):
1208
1329
if cn.getAttribute("name") == "Introspect":
1209
1330
for arg in cn.getElementsByTagName("arg"):
1222
1343
1223
1344
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1224
1345
"""A D-Bus object with properties.
1225
1346
1226
1347
Classes inheriting from this can use the dbus_service_property
1227
1348
decorator to expose methods as D-Bus properties. It exposes the
1228
1349
standard Get(), Set(), and GetAll() methods on the D-Bus.
1229
1350
"""
1230
1351
1231
1352
def _get_dbus_property(self, interface_name, property_name):
1232
1353
"""Returns a bound method if one exists which is a D-Bus
1233
1354
property with the specified name and interface.
1238
1359
if (value._dbus_name == property_name
1239
1360
and value._dbus_interface == interface_name):
1240
1361
return value.__get__(self)
1241
1362
1242
1363
# No such property
1243
1364
raise DBusPropertyNotFound("{}:{}.{}".format(
1244
1365
self.dbus_object_path, interface_name, property_name))
1245
1366
1246
1367
@classmethod
1247
1368
def _get_all_interface_names(cls):
1248
1369
"""Get a sequence of all interfaces supported by an object"""
1251
1372
for x in (inspect.getmro(cls))
1252
1373
for attr in dir(x))
1253
1374
if name is not None)
1254
1375
1255
1376
@dbus.service.method(dbus.PROPERTIES_IFACE,
1256
1377
in_signature="ss",
1257
1378
out_signature="v")
1265
1386
if not hasattr(value, "variant_level"):
1266
1387
return value
1267
1388
return type(value)(value, variant_level=value.variant_level+1)
1268
1389
1269
1390
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1270
1391
def Set(self, interface_name, property_name, value):
1271
1392
"""Standard D-Bus property Set() method, see D-Bus standard.
1283
1404
value = dbus.ByteArray(b''.join(chr(byte)
1284
1405
for byte in value))
1285
1406
prop(value)
1286
1407
1287
1408
@dbus.service.method(dbus.PROPERTIES_IFACE,
1288
1409
in_signature="s",
1289
1410
out_signature="a{sv}")
1290
1411
def GetAll(self, interface_name):
1291
1412
"""Standard D-Bus property GetAll() method, see D-Bus
1292
1413
standard.
1293
1414
1294
1415
Note: Will not include properties with access="write".
1295
1416
"""
1296
1417
properties = {}
1307
1428
properties[name] = value
1308
1429
continue
1309
1430
properties[name] = type(value)(
1310
value, variant_level = value.variant_level + 1)
1431
value, variant_level=value.variant_level + 1)
1311
1432
return dbus.Dictionary(properties, signature="sv")
1312
1433
1313
1434
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1314
1435
def PropertiesChanged(self, interface_name, changed_properties,
1315
1436
invalidated_properties):
1317
1438
standard.
1318
1439
"""
1319
1440
pass
1320
1441
1321
1442
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1322
1443
out_signature="s",
1323
1444
path_keyword='object_path',
1324
1445
connection_keyword='connection')
1325
1446
def Introspect(self, object_path, connection):
1326
1447
"""Overloading of standard D-Bus method.
1327
1448
1328
1449
Inserts property tags and interface annotation tags.
1329
1450
"""
1330
1451
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1332
1453
connection)
1333
1454
try:
1334
1455
document = xml.dom.minidom.parseString(xmlstring)
1335
1456
1336
1457
def make_tag(document, name, prop):
1337
1458
e = document.createElement("property")
1338
1459
e.setAttribute("name", name)
1339
1460
e.setAttribute("type", prop._dbus_signature)
1340
1461
e.setAttribute("access", prop._dbus_access)
1341
1462
return e
1342
1463
1343
1464
for if_tag in document.getElementsByTagName("interface"):
1344
1465
# Add property tags
1345
1466
for tag in (make_tag(document, name, prop)
1387
1508
exc_info=error)
1388
1509
return xmlstring
1389
1510
1511
1390
1512
try:
1391
1513
dbus.OBJECT_MANAGER_IFACE
1392
1514
except AttributeError:
1393
1515
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1394
1516
1517
1395
1518
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1396
1519
"""A D-Bus object with an ObjectManager.
1397
1520
1398
1521
Classes inheriting from this exposes the standard
1399
1522
GetManagedObjects call and the InterfacesAdded and
1400
1523
InterfacesRemoved signals on the standard
1401
1524
"org.freedesktop.DBus.ObjectManager" interface.
1402
1525
1403
1526
Note: No signals are sent automatically; they must be sent
1404
1527
manually.
1405
1528
"""
1406
1529
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1407
out_signature = "a{oa{sa{sv}}}")
1530
out_signature="a{oa{sa{sv}}}")
1408
1531
def GetManagedObjects(self):
1409
1532
"""This function must be overridden"""
1410
1533
raise NotImplementedError()
1411
1534
1412
1535
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1413
signature = "oa{sa{sv}}")
1536
signature="oa{sa{sv}}")
1414
1537
def InterfacesAdded(self, object_path, interfaces_and_properties):
1415
1538
pass
1416
1417
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1539
1540
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1418
1541
def InterfacesRemoved(self, object_path, interfaces):
1419
1542
pass
1420
1543
1421
1544
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1422
out_signature = "s",
1423
path_keyword = 'object_path',
1424
connection_keyword = 'connection')
1545
out_signature="s",
1546
path_keyword='object_path',
1547
connection_keyword='connection')
1425
1548
def Introspect(self, object_path, connection):
1426
1549
"""Overloading of standard D-Bus method.
1427
1550
1428
1551
Override return argument name of GetManagedObjects to be
1429
1552
"objpath_interfaces_and_properties"
1430
1553
"""
1433
1556
connection)
1434
1557
try:
1435
1558
document = xml.dom.minidom.parseString(xmlstring)
1436
1559
1437
1560
for if_tag in document.getElementsByTagName("interface"):
1438
1561
# Fix argument name for the GetManagedObjects method
1439
1562
if (if_tag.getAttribute("name")
1440
== dbus.OBJECT_MANAGER_IFACE):
1563
== dbus.OBJECT_MANAGER_IFACE):
1441
1564
for cn in if_tag.getElementsByTagName("method"):
1442
1565
if (cn.getAttribute("name")
1443
1566
== "GetManagedObjects"):
1453
1576
except (AttributeError, xml.dom.DOMException,
1454
1577
xml.parsers.expat.ExpatError) as error:
1455
1578
logger.error("Failed to override Introspection method",
1456
exc_info = error)
1579
exc_info=error)
1457
1580
return xmlstring
1458
1581
1582
1459
1583
def datetime_to_dbus(dt, variant_level=0):
1460
1584
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1461
1585
if dt is None:
1462
return dbus.String("", variant_level = variant_level)
1586
return dbus.String("", variant_level=variant_level)
1463
1587
return dbus.String(dt.isoformat(), variant_level=variant_level)
1464
1588
1465
1589
1468
1592
dbus.service.Object, it will add alternate D-Bus attributes with
1469
1593
interface names according to the "alt_interface_names" mapping.
1470
1594
Usage:
1471
1595
1472
1596
@alternate_dbus_interfaces({"org.example.Interface":
1473
1597
"net.example.AlternateInterface"})
1474
1598
class SampleDBusObject(dbus.service.Object):
1475
1599
@dbus.service.method("org.example.Interface")
1476
1600
def SampleDBusMethod():
1477
1601
pass
1478
1602
1479
1603
The above "SampleDBusMethod" on "SampleDBusObject" will be
1480
1604
reachable via two interfaces: "org.example.Interface" and
1481
1605
"net.example.AlternateInterface", the latter of which will have
1482
1606
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1483
1607
"true", unless "deprecate" is passed with a False value.
1484
1608
1485
1609
This works for methods and signals, and also for D-Bus properties
1486
1610
(from DBusObjectWithProperties) and interfaces (from the
1487
1611
dbus_interface_annotations decorator).
1488
1612
"""
1489
1613
1490
1614
def wrapper(cls):
1491
1615
for orig_interface_name, alt_interface_name in (
1492
1616
alt_interface_names.items()):
1507
1631
interface_names.add(alt_interface)
1508
1632
# Is this a D-Bus signal?
1509
1633
if getattr(attribute, "_dbus_is_signal", False):
1634
# Extract the original non-method undecorated
1635
# function by black magic
1510
1636
if sys.version_info.major == 2:
1511
# Extract the original non-method undecorated
1512
# function by black magic
1513
1637
nonmethod_func = (dict(
1514
1638
zip(attribute.func_code.co_freevars,
1515
1639
attribute.__closure__))
1516
1640
["func"].cell_contents)
1517
1641
else:
1518
nonmethod_func = attribute
1642
nonmethod_func = (dict(
1643
zip(attribute.__code__.co_freevars,
1644
attribute.__closure__))
1645
["func"].cell_contents)
1519
1646
# Create a new, but exactly alike, function
1520
1647
# object, and decorate it to be a new D-Bus signal
1521
1648
# with the alternate D-Bus interface name
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__)
1649
new_function = copy_function(nonmethod_func)
1536
1650
new_function = (dbus.service.signal(
1537
1651
alt_interface,
1538
1652
attribute._dbus_signature)(new_function))
1542
1656
attribute._dbus_annotations)
1543
1657
except AttributeError:
1544
1658
pass
1659
1545
1660
# Define a creator of a function to call both the
1546
1661
# original and alternate functions, so both the
1547
1662
# original and alternate signals gets sent when
1550
1665
"""This function is a scope container to pass
1551
1666
func1 and func2 to the "call_both" function
1552
1667
outside of its arguments"""
1553
1668
1554
1669
@functools.wraps(func2)
1555
1670
def call_both(*args, **kwargs):
1556
1671
"""This function will emit two D-Bus
1557
1672
signals by calling func1 and func2"""
1558
1673
func1(*args, **kwargs)
1559
1674
func2(*args, **kwargs)
1560
# Make wrapper function look like a D-Bus signal
1675
# Make wrapper function look like a D-Bus
1676
# signal
1561
1677
for name, attr in inspect.getmembers(func2):
1562
1678
if name.startswith("_dbus_"):
1563
1679
setattr(call_both, name, attr)
1564
1680
1565
1681
return call_both
1566
1682
# Create the "call_both" function and add it to
1567
1683
# the class
1577
1693
alt_interface,
1578
1694
attribute._dbus_in_signature,
1579
1695
attribute._dbus_out_signature)
1580
(types.FunctionType(attribute.func_code,
1581
attribute.func_globals,
1582
attribute.func_name,
1583
attribute.func_defaults,
1584
attribute.func_closure)))
1696
(copy_function(attribute)))
1585
1697
# Copy annotations, if any
1586
1698
try:
1587
1699
attr[attrname]._dbus_annotations = dict(
1599
1711
attribute._dbus_access,
1600
1712
attribute._dbus_get_args_options
1601
1713
["byte_arrays"])
1602
(types.FunctionType(
1603
attribute.func_code,
1604
attribute.func_globals,
1605
attribute.func_name,
1606
attribute.func_defaults,
1607
attribute.func_closure)))
1714
(copy_function(attribute)))
1608
1715
# Copy annotations, if any
1609
1716
try:
1610
1717
attr[attrname]._dbus_annotations = dict(
1619
1726
# to the class.
1620
1727
attr[attrname] = (
1621
1728
dbus_interface_annotations(alt_interface)
1622
(types.FunctionType(attribute.func_code,
1623
attribute.func_globals,
1624
attribute.func_name,
1625
attribute.func_defaults,
1626
attribute.func_closure)))
1729
(copy_function(attribute)))
1627
1730
if deprecate:
1628
1731
# Deprecate all alternate interfaces
1629
iname="_AlternateDBusNames_interface_annotation{}"
1732
iname = "_AlternateDBusNames_interface_annotation{}"
1630
1733
for interface_name in interface_names:
1631
1734
1632
1735
@dbus_interface_annotations(interface_name)
1633
1736
def func(self):
1634
return { "org.freedesktop.DBus.Deprecated":
1635
"true" }
1737
return {"org.freedesktop.DBus.Deprecated":
1738
"true"}
1636
1739
# Find an unused name
1637
1740
for aname in (iname.format(i)
1638
1741
for i in itertools.count()):
1642
1745
if interface_names:
1643
1746
# Replace the class with a new subclass of it with
1644
1747
# methods, signals, etc. as created above.
1645
cls = type(b"{}Alternate".format(cls.__name__),
1646
(cls, ), attr)
1748
if sys.version_info.major == 2:
1749
cls = type(b"{}Alternate".format(cls.__name__),
1750
(cls, ), attr)
1751
else:
1752
cls = type("{}Alternate".format(cls.__name__),
1753
(cls, ), attr)
1647
1754
return cls
1648
1755
1649
1756
return wrapper
1650
1757
1651
1758
1653
1760
"se.bsnet.fukt.Mandos"})
1654
1761
class ClientDBus(Client, DBusObjectWithProperties):
1655
1762
"""A Client class using D-Bus
1656
1763
1657
1764
Attributes:
1658
1765
dbus_object_path: dbus.ObjectPath
1659
1766
bus: dbus.SystemBus()
1660
1767
"""
1661
1768
1662
1769
runtime_expansions = (Client.runtime_expansions
1663
1770
+ ("dbus_object_path", ))
1664
1771
1665
1772
_interface = "se.recompile.Mandos.Client"
1666
1773
1667
1774
# dbus.service.Object doesn't use super(), so we can't either.
1668
1669
def __init__(self, bus = None, *args, **kwargs):
1775
1776
def __init__(self, bus=None, *args, **kwargs):
1670
1777
self.bus = bus
1671
1778
Client.__init__(self, *args, **kwargs)
1672
1779
# Only now, when this client is initialized, can it show up on
1678
1785
"/clients/" + client_object_name)
1679
1786
DBusObjectWithProperties.__init__(self, self.bus,
1680
1787
self.dbus_object_path)
1681
1788
1682
1789
def notifychangeproperty(transform_func, dbus_name,
1683
1790
type_func=lambda x: x,
1684
1791
variant_level=1,
1686
1793
_interface=_interface):
1687
1794
""" Modify a variable so that it's a property which announces
1688
1795
its changes to DBus.
1689
1796
1690
1797
transform_fun: Function that takes a value and a variant_level
1691
1798
and transforms it to a D-Bus type.
1692
1799
dbus_name: D-Bus name of the variable
1695
1802
variant_level: D-Bus variant level. Default: 1
1696
1803
"""
1697
1804
attrname = "_{}".format(dbus_name)
1698
1805
1699
1806
def setter(self, value):
1700
1807
if hasattr(self, "dbus_object_path"):
1701
1808
if (not hasattr(self, attrname) or
1708
1815
else:
1709
1816
dbus_value = transform_func(
1710
1817
type_func(value),
1711
variant_level = variant_level)
1818
variant_level=variant_level)
1712
1819
self.PropertyChanged(dbus.String(dbus_name),
1713
1820
dbus_value)
1714
1821
self.PropertiesChanged(
1715
1822
_interface,
1716
dbus.Dictionary({ dbus.String(dbus_name):
1717
dbus_value }),
1823
dbus.Dictionary({dbus.String(dbus_name):
1824
dbus_value}),
1718
1825
dbus.Array())
1719
1826
setattr(self, attrname, value)
1720
1827
1721
1828
return property(lambda self: getattr(self, attrname), setter)
1722
1829
1723
1830
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1724
1831
approvals_pending = notifychangeproperty(dbus.Boolean,
1725
1832
"ApprovalPending",
1726
type_func = bool)
1833
type_func=bool)
1727
1834
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1728
1835
last_enabled = notifychangeproperty(datetime_to_dbus,
1729
1836
"LastEnabled")
1730
1837
checker = notifychangeproperty(
1731
1838
dbus.Boolean, "CheckerRunning",
1732
type_func = lambda checker: checker is not None)
1839
type_func=lambda checker: checker is not None)
1733
1840
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1734
1841
"LastCheckedOK")
1735
1842
last_checker_status = notifychangeproperty(dbus.Int16,
1740
1847
"ApprovedByDefault")
1741
1848
approval_delay = notifychangeproperty(
1742
1849
dbus.UInt64, "ApprovalDelay",
1743
type_func = lambda td: td.total_seconds() * 1000)
1850
type_func=lambda td: td.total_seconds() * 1000)
1744
1851
approval_duration = notifychangeproperty(
1745
1852
dbus.UInt64, "ApprovalDuration",
1746
type_func = lambda td: td.total_seconds() * 1000)
1853
type_func=lambda td: td.total_seconds() * 1000)
1747
1854
host = notifychangeproperty(dbus.String, "Host")
1748
1855
timeout = notifychangeproperty(
1749
1856
dbus.UInt64, "Timeout",
1750
type_func = lambda td: td.total_seconds() * 1000)
1857
type_func=lambda td: td.total_seconds() * 1000)
1751
1858
extended_timeout = notifychangeproperty(
1752
1859
dbus.UInt64, "ExtendedTimeout",
1753
type_func = lambda td: td.total_seconds() * 1000)
1860
type_func=lambda td: td.total_seconds() * 1000)
1754
1861
interval = notifychangeproperty(
1755
1862
dbus.UInt64, "Interval",
1756
type_func = lambda td: td.total_seconds() * 1000)
1863
type_func=lambda td: td.total_seconds() * 1000)
1757
1864
checker_command = notifychangeproperty(dbus.String, "Checker")
1758
1865
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1759
1866
invalidate_only=True)
1760
1867
1761
1868
del notifychangeproperty
1762
1869
1763
1870
def __del__(self, *args, **kwargs):
1764
1871
try:
1765
1872
self.remove_from_connection()
1768
1875
if hasattr(DBusObjectWithProperties, "__del__"):
1769
1876
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1770
1877
Client.__del__(self, *args, **kwargs)
1771
1878
1772
1879
def checker_callback(self, source, condition,
1773
1880
connection, command, *args, **kwargs):
1774
1881
ret = Client.checker_callback(self, source, condition,
1790
1897
| self.last_checker_signal),
1791
1898
dbus.String(command))
1792
1899
return ret
1793
1900
1794
1901
def start_checker(self, *args, **kwargs):
1795
1902
old_checker_pid = getattr(self.checker, "pid", None)
1796
1903
r = Client.start_checker(self, *args, **kwargs)
1800
1907
# Emit D-Bus signal
1801
1908
self.CheckerStarted(self.current_checker_command)
1802
1909
return r
1803
1910
1804
1911
def _reset_approved(self):
1805
1912
self.approved = None
1806
1913
return False
1807
1914
1808
1915
def approve(self, value=True):
1809
1916
self.approved = value
1810
GObject.timeout_add(int(self.approval_duration.total_seconds()
1811
* 1000), self._reset_approved)
1917
GLib.timeout_add(int(self.approval_duration.total_seconds()
1918
* 1000), self._reset_approved)
1812
1919
self.send_changedstate()
1813
1814
## D-Bus methods, signals & properties
1815
1816
## Interfaces
1817
1818
## Signals
1819
1920
1921
# D-Bus methods, signals & properties
1922
1923
# Interfaces
1924
1925
# Signals
1926
1820
1927
# CheckerCompleted - signal
1821
1928
@dbus.service.signal(_interface, signature="nxs")
1822
1929
def CheckerCompleted(self, exitcode, waitstatus, command):
1823
1930
"D-Bus signal"
1824
1931
pass
1825
1932
1826
1933
# CheckerStarted - signal
1827
1934
@dbus.service.signal(_interface, signature="s")
1828
1935
def CheckerStarted(self, command):
1829
1936
"D-Bus signal"
1830
1937
pass
1831
1938
1832
1939
# PropertyChanged - signal
1833
1940
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1834
1941
@dbus.service.signal(_interface, signature="sv")
1835
1942
def PropertyChanged(self, property, value):
1836
1943
"D-Bus signal"
1837
1944
pass
1838
1945
1839
1946
# GotSecret - signal
1840
1947
@dbus.service.signal(_interface)
1841
1948
def GotSecret(self):
1844
1951
server to mandos-client
1845
1952
"""
1846
1953
pass
1847
1954
1848
1955
# Rejected - signal
1849
1956
@dbus.service.signal(_interface, signature="s")
1850
1957
def Rejected(self, reason):
1851
1958
"D-Bus signal"
1852
1959
pass
1853
1960
1854
1961
# NeedApproval - signal
1855
1962
@dbus.service.signal(_interface, signature="tb")
1856
1963
def NeedApproval(self, timeout, default):
1857
1964
"D-Bus signal"
1858
1965
return self.need_approval()
1859
1860
## Methods
1861
1966
1967
# Methods
1968
1862
1969
# Approve - method
1863
1970
@dbus.service.method(_interface, in_signature="b")
1864
1971
def Approve(self, value):
1865
1972
self.approve(value)
1866
1973
1867
1974
# CheckedOK - method
1868
1975
@dbus.service.method(_interface)
1869
1976
def CheckedOK(self):
1870
1977
self.checked_ok()
1871
1978
1872
1979
# Enable - method
1873
1980
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1874
1981
@dbus.service.method(_interface)
1875
1982
def Enable(self):
1876
1983
"D-Bus method"
1877
1984
self.enable()
1878
1985
1879
1986
# StartChecker - method
1880
1987
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1881
1988
@dbus.service.method(_interface)
1882
1989
def StartChecker(self):
1883
1990
"D-Bus method"
1884
1991
self.start_checker()
1885
1992
1886
1993
# Disable - method
1887
1994
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1888
1995
@dbus.service.method(_interface)
1889
1996
def Disable(self):
1890
1997
"D-Bus method"
1891
1998
self.disable()
1892
1999
1893
2000
# StopChecker - method
1894
2001
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1895
2002
@dbus.service.method(_interface)
1896
2003
def StopChecker(self):
1897
2004
self.stop_checker()
1898
1899
## Properties
1900
2005
2006
# Properties
2007
1901
2008
# ApprovalPending - property
1902
2009
@dbus_service_property(_interface, signature="b", access="read")
1903
2010
def ApprovalPending_dbus_property(self):
1904
2011
return dbus.Boolean(bool(self.approvals_pending))
1905
2012
1906
2013
# ApprovedByDefault - property
1907
2014
@dbus_service_property(_interface,
1908
2015
signature="b",
1911
2018
if value is None: # get
1912
2019
return dbus.Boolean(self.approved_by_default)
1913
2020
self.approved_by_default = bool(value)
1914
2021
1915
2022
# ApprovalDelay - property
1916
2023
@dbus_service_property(_interface,
1917
2024
signature="t",
1921
2028
return dbus.UInt64(self.approval_delay.total_seconds()
1922
2029
* 1000)
1923
2030
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1924
2031
1925
2032
# ApprovalDuration - property
1926
2033
@dbus_service_property(_interface,
1927
2034
signature="t",
1931
2038
return dbus.UInt64(self.approval_duration.total_seconds()
1932
2039
* 1000)
1933
2040
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1934
2041
1935
2042
# Name - property
1936
2043
@dbus_annotations(
1937
2044
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1938
2045
@dbus_service_property(_interface, signature="s", access="read")
1939
2046
def Name_dbus_property(self):
1940
2047
return dbus.String(self.name)
1941
2048
2049
# KeyID - property
2050
@dbus_annotations(
2051
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2052
@dbus_service_property(_interface, signature="s", access="read")
2053
def KeyID_dbus_property(self):
2054
return dbus.String(self.key_id)
2055
1942
2056
# Fingerprint - property
1943
2057
@dbus_annotations(
1944
2058
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1945
2059
@dbus_service_property(_interface, signature="s", access="read")
1946
2060
def Fingerprint_dbus_property(self):
1947
2061
return dbus.String(self.fingerprint)
1948
2062
1949
2063
# Host - property
1950
2064
@dbus_service_property(_interface,
1951
2065
signature="s",
1954
2068
if value is None: # get
1955
2069
return dbus.String(self.host)
1956
2070
self.host = str(value)
1957
2071
1958
2072
# Created - property
1959
2073
@dbus_annotations(
1960
2074
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1961
2075
@dbus_service_property(_interface, signature="s", access="read")
1962
2076
def Created_dbus_property(self):
1963
2077
return datetime_to_dbus(self.created)
1964
2078
1965
2079
# LastEnabled - property
1966
2080
@dbus_service_property(_interface, signature="s", access="read")
1967
2081
def LastEnabled_dbus_property(self):
1968
2082
return datetime_to_dbus(self.last_enabled)
1969
2083
1970
2084
# Enabled - property
1971
2085
@dbus_service_property(_interface,
1972
2086
signature="b",
1978
2092
self.enable()
1979
2093
else:
1980
2094
self.disable()
1981
2095
1982
2096
# LastCheckedOK - property
1983
2097
@dbus_service_property(_interface,
1984
2098
signature="s",
1988
2102
self.checked_ok()
1989
2103
return
1990
2104
return datetime_to_dbus(self.last_checked_ok)
1991
2105
1992
2106
# LastCheckerStatus - property
1993
2107
@dbus_service_property(_interface, signature="n", access="read")
1994
2108
def LastCheckerStatus_dbus_property(self):
1995
2109
return dbus.Int16(self.last_checker_status)
1996
2110
1997
2111
# Expires - property
1998
2112
@dbus_service_property(_interface, signature="s", access="read")
1999
2113
def Expires_dbus_property(self):
2000
2114
return datetime_to_dbus(self.expires)
2001
2115
2002
2116
# LastApprovalRequest - property
2003
2117
@dbus_service_property(_interface, signature="s", access="read")
2004
2118
def LastApprovalRequest_dbus_property(self):
2005
2119
return datetime_to_dbus(self.last_approval_request)
2006
2120
2007
2121
# Timeout - property
2008
2122
@dbus_service_property(_interface,
2009
2123
signature="t",
2024
2138
if (getattr(self, "disable_initiator_tag", None)
2025
2139
is None):
2026
2140
return
2027
GObject.source_remove(self.disable_initiator_tag)
2028
self.disable_initiator_tag = GObject.timeout_add(
2141
GLib.source_remove(self.disable_initiator_tag)
2142
self.disable_initiator_tag = GLib.timeout_add(
2029
2143
int((self.expires - now).total_seconds() * 1000),
2030
2144
self.disable)
2031
2145
2032
2146
# ExtendedTimeout - property
2033
2147
@dbus_service_property(_interface,
2034
2148
signature="t",
2038
2152
return dbus.UInt64(self.extended_timeout.total_seconds()
2039
2153
* 1000)
2040
2154
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2041
2155
2042
2156
# Interval - property
2043
2157
@dbus_service_property(_interface,
2044
2158
signature="t",
2051
2165
return
2052
2166
if self.enabled:
2053
2167
# Reschedule checker run
2054
GObject.source_remove(self.checker_initiator_tag)
2055
self.checker_initiator_tag = GObject.timeout_add(
2168
GLib.source_remove(self.checker_initiator_tag)
2169
self.checker_initiator_tag = GLib.timeout_add(
2056
2170
value, self.start_checker)
2057
self.start_checker() # Start one now, too
2058
2171
self.start_checker() # Start one now, too
2172
2059
2173
# Checker - property
2060
2174
@dbus_service_property(_interface,
2061
2175
signature="s",
2064
2178
if value is None: # get
2065
2179
return dbus.String(self.checker_command)
2066
2180
self.checker_command = str(value)
2067
2181
2068
2182
# CheckerRunning - property
2069
2183
@dbus_service_property(_interface,
2070
2184
signature="b",
2076
2190
self.start_checker()
2077
2191
else:
2078
2192
self.stop_checker()
2079
2193
2080
2194
# ObjectPath - property
2081
2195
@dbus_annotations(
2082
2196
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2083
2197
"org.freedesktop.DBus.Deprecated": "true"})
2084
2198
@dbus_service_property(_interface, signature="o", access="read")
2085
2199
def ObjectPath_dbus_property(self):
2086
return self.dbus_object_path # is already a dbus.ObjectPath
2087
2200
return self.dbus_object_path # is already a dbus.ObjectPath
2201
2088
2202
# Secret = property
2089
2203
@dbus_annotations(
2090
2204
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2095
2209
byte_arrays=True)
2096
2210
def Secret_dbus_property(self, value):
2097
2211
self.secret = bytes(value)
2098
2212
2099
2213
del _interface
2100
2214
2101
2215
2102
2216
class ProxyClient(object):
2103
def __init__(self, child_pipe, fpr, address):
2217
def __init__(self, child_pipe, key_id, fpr, address):
2104
2218
self._pipe = child_pipe
2105
self._pipe.send(('init', fpr, address))
2219
self._pipe.send(('init', key_id, fpr, address))
2106
2220
if not self._pipe.recv():
2107
raise KeyError(fpr)
2108
2221
raise KeyError(key_id or fpr)
2222
2109
2223
def __getattribute__(self, name):
2110
2224
if name == '_pipe':
2111
2225
return super(ProxyClient, self).__getattribute__(name)
2114
2228
if data[0] == 'data':
2115
2229
return data[1]
2116
2230
if data[0] == 'function':
2117
2231
2118
2232
def func(*args, **kwargs):
2119
2233
self._pipe.send(('funcall', name, args, kwargs))
2120
2234
return self._pipe.recv()[1]
2121
2235
2122
2236
return func
2123
2237
2124
2238
def __setattr__(self, name, value):
2125
2239
if name == '_pipe':
2126
2240
return super(ProxyClient, self).__setattr__(name, value)
2129
2243
2130
2244
class ClientHandler(socketserver.BaseRequestHandler, object):
2131
2245
"""A class to handle client connections.
2132
2246
2133
2247
Instantiated once for each connection to handle it.
2134
2248
Note: This will run in its own forked process."""
2135
2249
2136
2250
def handle(self):
2137
2251
with contextlib.closing(self.server.child_pipe) as child_pipe:
2138
2252
logger.info("TCP connection from: %s",
2139
2253
str(self.client_address))
2140
2254
logger.debug("Pipe FD: %d",
2141
2255
self.server.child_pipe.fileno())
2142
2256
2143
2257
session = gnutls.ClientSession(self.request)
2144
2145
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
2146
# "+AES-256-CBC", "+SHA1",
2147
# "+COMP-NULL", "+CTYPE-OPENPGP",
2148
# "+DHE-DSS"))
2258
2259
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2260
# "+AES-256-CBC", "+SHA1",
2261
# "+COMP-NULL", "+CTYPE-OPENPGP",
2262
# "+DHE-DSS"))
2149
2263
# Use a fallback default, since this MUST be set.
2150
2264
priority = self.server.gnutls_priority
2151
2265
if priority is None:
2152
2266
priority = "NORMAL"
2153
gnutls.priority_set_direct(session._c_object, priority,
2267
gnutls.priority_set_direct(session._c_object,
2268
priority.encode("utf-8"),
2154
2269
None)
2155
2270
2156
2271
# Start communication using the Mandos protocol
2157
2272
# Get protocol number
2158
2273
line = self.request.makefile().readline()
2163
2278
except (ValueError, IndexError, RuntimeError) as error:
2164
2279
logger.error("Unknown protocol version: %s", error)
2165
2280
return
2166
2281
2167
2282
# Start GnuTLS connection
2168
2283
try:
2169
2284
session.handshake()
2173
2288
# established. Just abandon the request.
2174
2289
return
2175
2290
logger.debug("Handshake succeeded")
2176
2291
2177
2292
approval_required = False
2178
2293
try:
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,
2294
if gnutls.has_rawpk:
2295
fpr = b""
2296
try:
2297
key_id = self.key_id(
2298
self.peer_certificate(session))
2299
except (TypeError, gnutls.Error) as error:
2300
logger.warning("Bad certificate: %s", error)
2301
return
2302
logger.debug("Key ID: %s", key_id)
2303
2304
else:
2305
key_id = b""
2306
try:
2307
fpr = self.fingerprint(
2308
self.peer_certificate(session))
2309
except (TypeError, gnutls.Error) as error:
2310
logger.warning("Bad certificate: %s", error)
2311
return
2312
logger.debug("Fingerprint: %s", fpr)
2313
2314
try:
2315
client = ProxyClient(child_pipe, key_id, fpr,
2189
2316
self.client_address)
2190
2317
except KeyError:
2191
2318
return
2192
2319
2193
2320
if client.approval_delay:
2194
2321
delay = client.approval_delay
2195
2322
client.approvals_pending += 1
2196
2323
approval_required = True
2197
2324
2198
2325
while True:
2199
2326
if not client.enabled:
2200
2327
logger.info("Client %s is disabled",
2203
2330
# Emit D-Bus signal
2204
2331
client.Rejected("Disabled")
2205
2332
return
2206
2333
2207
2334
if client.approved or not client.approval_delay:
2208
#We are approved or approval is disabled
2335
# We are approved or approval is disabled
2209
2336
break
2210
2337
elif client.approved is None:
2211
2338
logger.info("Client %s needs approval",
2222
2349
# Emit D-Bus signal
2223
2350
client.Rejected("Denied")
2224
2351
return
2225
2226
#wait until timeout or approved
2352
2353
# wait until timeout or approved
2227
2354
time = datetime.datetime.now()
2228
2355
client.changedstate.acquire()
2229
2356
client.changedstate.wait(delay.total_seconds())
2242
2369
break
2243
2370
else:
2244
2371
delay -= time2 - time
2245
2372
2246
2373
try:
2247
2374
session.send(client.secret)
2248
2375
except gnutls.Error as error:
2249
2376
logger.warning("gnutls send failed",
2250
exc_info = error)
2377
exc_info=error)
2251
2378
return
2252
2379
2253
2380
logger.info("Sending secret to %s", client.name)
2254
2381
# bump the timeout using extended_timeout
2255
2382
client.bump_timeout(client.extended_timeout)
2256
2383
if self.server.use_dbus:
2257
2384
# Emit D-Bus signal
2258
2385
client.GotSecret()
2259
2386
2260
2387
finally:
2261
2388
if approval_required:
2262
2389
client.approvals_pending -= 1
2265
2392
except gnutls.Error as error:
2266
2393
logger.warning("GnuTLS bye failed",
2267
2394
exc_info=error)
2268
2395
2269
2396
@staticmethod
2270
2397
def peer_certificate(session):
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):
2398
"Return the peer's certificate as a bytestring"
2399
try:
2400
cert_type = gnutls.certificate_type_get2(session._c_object,
2401
gnutls.CTYPE_PEERS)
2402
except AttributeError:
2403
cert_type = gnutls.certificate_type_get(session._c_object)
2404
if gnutls.has_rawpk:
2405
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2406
else:
2407
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2408
# If not a valid certificate type...
2409
if cert_type not in valid_cert_types:
2410
logger.info("Cert type %r not in %r", cert_type,
2411
valid_cert_types)
2275
2412
# ...return invalid data
2276
2413
return b""
2277
2414
list_size = ctypes.c_uint(1)
2283
2420
return None
2284
2421
cert = cert_list[0]
2285
2422
return ctypes.string_at(cert.data, cert.size)
2286
2423
2424
@staticmethod
2425
def key_id(certificate):
2426
"Convert a certificate bytestring to a hexdigit key ID"
2427
# New GnuTLS "datum" with the public key
2428
datum = gnutls.datum_t(
2429
ctypes.cast(ctypes.c_char_p(certificate),
2430
ctypes.POINTER(ctypes.c_ubyte)),
2431
ctypes.c_uint(len(certificate)))
2432
# XXX all these need to be created in the gnutls "module"
2433
# New empty GnuTLS certificate
2434
pubkey = gnutls.pubkey_t()
2435
gnutls.pubkey_init(ctypes.byref(pubkey))
2436
# Import the raw public key into the certificate
2437
gnutls.pubkey_import(pubkey,
2438
ctypes.byref(datum),
2439
gnutls.X509_FMT_DER)
2440
# New buffer for the key ID
2441
buf = ctypes.create_string_buffer(32)
2442
buf_len = ctypes.c_size_t(len(buf))
2443
# Get the key ID from the raw public key into the buffer
2444
gnutls.pubkey_get_key_id(pubkey,
2445
gnutls.KEYID_USE_SHA256,
2446
ctypes.cast(ctypes.byref(buf),
2447
ctypes.POINTER(ctypes.c_ubyte)),
2448
ctypes.byref(buf_len))
2449
# Deinit the certificate
2450
gnutls.pubkey_deinit(pubkey)
2451
2452
# Convert the buffer to a Python bytestring
2453
key_id = ctypes.string_at(buf, buf_len.value)
2454
# Convert the bytestring to hexadecimal notation
2455
hex_key_id = binascii.hexlify(key_id).upper()
2456
return hex_key_id
2457
2287
2458
@staticmethod
2288
2459
def fingerprint(openpgp):
2289
2460
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2304
2475
ctypes.byref(crtverify))
2305
2476
if crtverify.value != 0:
2306
2477
gnutls.openpgp_crt_deinit(crt)
2307
raise gnutls.CertificateSecurityError("Verify failed")
2478
raise gnutls.CertificateSecurityError(code
2479
=crtverify.value)
2308
2480
# New buffer for the fingerprint
2309
2481
buf = ctypes.create_string_buffer(20)
2310
2482
buf_len = ctypes.c_size_t()
2322
2494
2323
2495
class MultiprocessingMixIn(object):
2324
2496
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2325
2497
2326
2498
def sub_process_main(self, request, address):
2327
2499
try:
2328
2500
self.finish_request(request, address)
2329
2501
except Exception:
2330
2502
self.handle_error(request, address)
2331
2503
self.close_request(request)
2332
2504
2333
2505
def process_request(self, request, address):
2334
2506
"""Start a new process to process the request."""
2335
proc = multiprocessing.Process(target = self.sub_process_main,
2336
args = (request, address))
2507
proc = multiprocessing.Process(target=self.sub_process_main,
2508
args=(request, address))
2337
2509
proc.start()
2338
2510
return proc
2339
2511
2340
2512
2341
2513
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2342
2514
""" adds a pipe to the MixIn """
2343
2515
2344
2516
def process_request(self, request, client_address):
2345
2517
"""Overrides and wraps the original process_request().
2346
2518
2347
2519
This function creates a new pipe in self.pipe
2348
2520
"""
2349
2521
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2350
2522
2351
2523
proc = MultiprocessingMixIn.process_request(self, request,
2352
2524
client_address)
2353
2525
self.child_pipe.close()
2354
2526
self.add_pipe(parent_pipe, proc)
2355
2527
2356
2528
def add_pipe(self, parent_pipe, proc):
2357
2529
"""Dummy function; override as necessary"""
2358
2530
raise NotImplementedError()
2361
2533
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2362
2534
socketserver.TCPServer, object):
2363
2535
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2364
2536
2365
2537
Attributes:
2366
2538
enabled: Boolean; whether this server is activated yet
2367
2539
interface: None or a network interface name (string)
2368
2540
use_ipv6: Boolean; to use IPv6 or not
2369
2541
"""
2370
2542
2371
2543
def __init__(self, server_address, RequestHandlerClass,
2372
2544
interface=None,
2373
2545
use_ipv6=True,
2383
2555
self.socketfd = socketfd
2384
2556
# Save the original socket.socket() function
2385
2557
self.socket_socket = socket.socket
2558
2386
2559
# To implement --socket, we monkey patch socket.socket.
2387
#
2560
#
2388
2561
# (When socketserver.TCPServer is a new-style class, we
2389
2562
# could make self.socket into a property instead of monkey
2390
2563
# patching socket.socket.)
2391
#
2564
#
2392
2565
# Create a one-time-only replacement for socket.socket()
2393
2566
@functools.wraps(socket.socket)
2394
2567
def socket_wrapper(*args, **kwargs):
2406
2579
# socket_wrapper(), if socketfd was set.
2407
2580
socketserver.TCPServer.__init__(self, server_address,
2408
2581
RequestHandlerClass)
2409
2582
2410
2583
def server_bind(self):
2411
2584
"""This overrides the normal server_bind() function
2412
2585
to bind to an interface if one was specified, and also NOT to
2413
2586
bind to an address or port if they were not specified."""
2587
global SO_BINDTODEVICE
2414
2588
if self.interface is not None:
2415
2589
if SO_BINDTODEVICE is None:
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
2590
# Fall back to a hard-coded value which seems to be
2591
# common enough.
2592
logger.warning("SO_BINDTODEVICE not found, trying 25")
2593
SO_BINDTODEVICE = 25
2594
try:
2595
self.socket.setsockopt(
2596
socket.SOL_SOCKET, SO_BINDTODEVICE,
2597
(self.interface + "\0").encode("utf-8"))
2598
except socket.error as error:
2599
if error.errno == errno.EPERM:
2600
logger.error("No permission to bind to"
2601
" interface %s", self.interface)
2602
elif error.errno == errno.ENOPROTOOPT:
2603
logger.error("SO_BINDTODEVICE not available;"
2604
" cannot bind to interface %s",
2605
self.interface)
2606
elif error.errno == errno.ENODEV:
2607
logger.error("Interface %s does not exist,"
2608
" cannot bind", self.interface)
2609
else:
2610
raise
2437
2611
# Only bind(2) the socket if we really need to.
2438
2612
if self.server_address[0] or self.server_address[1]:
2613
if self.server_address[1]:
2614
self.allow_reuse_address = True
2439
2615
if not self.server_address[0]:
2440
2616
if self.address_family == socket.AF_INET6:
2441
any_address = "::" # in6addr_any
2617
any_address = "::" # in6addr_any
2442
2618
else:
2443
any_address = "0.0.0.0" # INADDR_ANY
2619
any_address = "0.0.0.0" # INADDR_ANY
2444
2620
self.server_address = (any_address,
2445
2621
self.server_address[1])
2446
2622
elif not self.server_address[1]:
2456
2632
2457
2633
class MandosServer(IPv6_TCPServer):
2458
2634
"""Mandos server.
2459
2635
2460
2636
Attributes:
2461
2637
clients: set of Client objects
2462
2638
gnutls_priority GnuTLS priority string
2463
2639
use_dbus: Boolean; to emit D-Bus signals or not
2464
2465
Assumes a GObject.MainLoop event loop.
2640
2641
Assumes a GLib.MainLoop event loop.
2466
2642
"""
2467
2643
2468
2644
def __init__(self, server_address, RequestHandlerClass,
2469
2645
interface=None,
2470
2646
use_ipv6=True,
2480
2656
self.gnutls_priority = gnutls_priority
2481
2657
IPv6_TCPServer.__init__(self, server_address,
2482
2658
RequestHandlerClass,
2483
interface = interface,
2484
use_ipv6 = use_ipv6,
2485
socketfd = socketfd)
2486
2659
interface=interface,
2660
use_ipv6=use_ipv6,
2661
socketfd=socketfd)
2662
2487
2663
def server_activate(self):
2488
2664
if self.enabled:
2489
2665
return socketserver.TCPServer.server_activate(self)
2490
2666
2491
2667
def enable(self):
2492
2668
self.enabled = True
2493
2669
2494
2670
def add_pipe(self, parent_pipe, proc):
2495
2671
# Call "handle_ipc" for both data and EOF events
2496
GObject.io_add_watch(
2672
GLib.io_add_watch(
2497
2673
parent_pipe.fileno(),
2498
GObject.IO_IN | GObject.IO_HUP,
2674
GLib.IO_IN | GLib.IO_HUP,
2499
2675
functools.partial(self.handle_ipc,
2500
parent_pipe = parent_pipe,
2501
proc = proc))
2502
2676
parent_pipe=parent_pipe,
2677
proc=proc))
2678
2503
2679
def handle_ipc(self, source, condition,
2504
2680
parent_pipe=None,
2505
proc = None,
2681
proc=None,
2506
2682
client_object=None):
2507
2683
# error, or the other end of multiprocessing.Pipe has closed
2508
if condition & (GObject.IO_ERR | GObject.IO_HUP):
2684
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2509
2685
# Wait for other process to exit
2510
2686
proc.join()
2511
2687
return False
2512
2688
2513
2689
# Read a request from the child
2514
2690
request = parent_pipe.recv()
2515
2691
command = request[0]
2516
2692
2517
2693
if command == 'init':
2518
fpr = request[1]
2519
address = request[2]
2520
2521
for c in self.clients.itervalues():
2522
if c.fingerprint == fpr:
2694
key_id = request[1].decode("ascii")
2695
fpr = request[2].decode("ascii")
2696
address = request[3]
2697
2698
for c in self.clients.values():
2699
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2700
continue
2701
if key_id and c.key_id == key_id:
2702
client = c
2703
break
2704
if fpr and c.fingerprint == fpr:
2523
2705
client = c
2524
2706
break
2525
2707
else:
2526
logger.info("Client not found for fingerprint: %s, ad"
2527
"dress: %s", fpr, address)
2708
logger.info("Client not found for key ID: %s, address"
2709
": %s", key_id or fpr, address)
2528
2710
if self.use_dbus:
2529
2711
# Emit D-Bus signal
2530
mandos_dbus_service.ClientNotFound(fpr,
2712
mandos_dbus_service.ClientNotFound(key_id or fpr,
2531
2713
address[0])
2532
2714
parent_pipe.send(False)
2533
2715
return False
2534
2535
GObject.io_add_watch(
2716
2717
GLib.io_add_watch(
2536
2718
parent_pipe.fileno(),
2537
GObject.IO_IN | GObject.IO_HUP,
2719
GLib.IO_IN | GLib.IO_HUP,
2538
2720
functools.partial(self.handle_ipc,
2539
parent_pipe = parent_pipe,
2540
proc = proc,
2541
client_object = client))
2721
parent_pipe=parent_pipe,
2722
proc=proc,
2723
client_object=client))
2542
2724
parent_pipe.send(True)
2543
2725
# remove the old hook in favor of the new above hook on
2544
2726
# same fileno
2547
2729
funcname = request[1]
2548
2730
args = request[2]
2549
2731
kwargs = request[3]
2550
2732
2551
2733
parent_pipe.send(('data', getattr(client_object,
2552
2734
funcname)(*args,
2553
2735
**kwargs)))
2554
2736
2555
2737
if command == 'getattr':
2556
2738
attrname = request[1]
2557
2739
if isinstance(client_object.__getattribute__(attrname),
2560
2742
else:
2561
2743
parent_pipe.send((
2562
2744
'data', client_object.__getattribute__(attrname)))
2563
2745
2564
2746
if command == 'setattr':
2565
2747
attrname = request[1]
2566
2748
value = request[2]
2567
2749
setattr(client_object, attrname, value)
2568
2750
2569
2751
return True
2570
2752
2571
2753
2572
2754
def rfc3339_duration_to_delta(duration):
2573
2755
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2574
2756
2575
2757
>>> rfc3339_duration_to_delta("P7D")
2576
2758
datetime.timedelta(7)
2577
2759
>>> rfc3339_duration_to_delta("PT60S")
2587
2769
>>> rfc3339_duration_to_delta("P1DT3M20S")
2588
2770
datetime.timedelta(1, 200)
2589
2771
"""
2590
2772
2591
2773
# Parsing an RFC 3339 duration with regular expressions is not
2592
2774
# possible - there would have to be multiple places for the same
2593
2775
# values, like seconds. The current code, while more esoteric, is
2594
2776
# cleaner without depending on a parsing library. If Python had a
2595
2777
# built-in library for parsing we would use it, but we'd like to
2596
2778
# avoid excessive use of external libraries.
2597
2779
2598
2780
# New type for defining tokens, syntax, and semantics all-in-one
2599
2781
Token = collections.namedtuple("Token", (
2600
2782
"regexp", # To match token; if "value" is not None, must have
2633
2815
frozenset((token_year, token_month,
2634
2816
token_day, token_time,
2635
2817
token_week)))
2636
# Define starting values
2637
value = datetime.timedelta() # Value so far
2818
# Define starting values:
2819
# Value so far
2820
value = datetime.timedelta()
2638
2821
found_token = None
2639
followers = frozenset((token_duration, )) # Following valid tokens
2640
s = duration # String left to parse
2822
# Following valid tokens
2823
followers = frozenset((token_duration, ))
2824
# String left to parse
2825
s = duration
2641
2826
# Loop until end token is found
2642
2827
while found_token is not token_end:
2643
2828
# Search for any currently valid tokens
2667
2852
2668
2853
def string_to_delta(interval):
2669
2854
"""Parse a string and return a datetime.timedelta
2670
2855
2671
2856
>>> string_to_delta('7d')
2672
2857
datetime.timedelta(7)
2673
2858
>>> string_to_delta('60s')
2681
2866
>>> string_to_delta('5m 30s')
2682
2867
datetime.timedelta(0, 330)
2683
2868
"""
2684
2869
2685
2870
try:
2686
2871
return rfc3339_duration_to_delta(interval)
2687
2872
except ValueError:
2688
2873
pass
2689
2874
2690
2875
timevalue = datetime.timedelta(0)
2691
2876
for s in interval.split():
2692
2877
try:
2710
2895
return timevalue
2711
2896
2712
2897
2713
def daemon(nochdir = False, noclose = False):
2898
def daemon(nochdir=False, noclose=False):
2714
2899
"""See daemon(3). Standard BSD Unix function.
2715
2900
2716
2901
This should really exist as os.daemon, but it doesn't (yet)."""
2717
2902
if os.fork():
2718
2903
sys.exit()
2736
2921
2737
2922
2738
2923
def main():
2739
2924
2740
2925
##################################################################
2741
2926
# Parsing of options, both command line and config file
2742
2927
2743
2928
parser = argparse.ArgumentParser()
2744
2929
parser.add_argument("-v", "--version", action="version",
2745
version = "%(prog)s {}".format(version),
2930
version="%(prog)s {}".format(version),
2746
2931
help="show version number and exit")
2747
2932
parser.add_argument("-i", "--interface", metavar="IF",
2748
2933
help="Bind to interface IF")
2784
2969
parser.add_argument("--no-zeroconf", action="store_false",
2785
2970
dest="zeroconf", help="Do not use Zeroconf",
2786
2971
default=None)
2787
2972
2788
2973
options = parser.parse_args()
2789
2974
2790
2975
if options.check:
2791
2976
import doctest
2792
2977
fail_count, test_count = doctest.testmod()
2793
2978
sys.exit(os.EX_OK if fail_count == 0 else 1)
2794
2979
2795
2980
# Default values for config file for server-global settings
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
2981
if gnutls.has_rawpk:
2982
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2983
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2984
else:
2985
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2986
":+SIGN-DSA-SHA256")
2987
server_defaults = {"interface": "",
2988
"address": "",
2989
"port": "",
2990
"debug": "False",
2991
"priority": priority,
2992
"servicename": "Mandos",
2993
"use_dbus": "True",
2994
"use_ipv6": "True",
2995
"debuglevel": "",
2996
"restore": "True",
2997
"socket": "",
2998
"statedir": "/var/lib/mandos",
2999
"foreground": "False",
3000
"zeroconf": "True",
3001
}
3002
del priority
3003
2814
3004
# Parse config file for server-global settings
2815
server_config = configparser.SafeConfigParser(server_defaults)
3005
server_config = configparser.ConfigParser(server_defaults)
2816
3006
del server_defaults
2817
3007
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2818
# Convert the SafeConfigParser object to a dict
3008
# Convert the ConfigParser object to a dict
2819
3009
server_settings = server_config.defaults()
2820
3010
# Use the appropriate methods on the non-string config options
2821
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3011
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3012
"foreground", "zeroconf"):
2822
3013
server_settings[option] = server_config.getboolean("DEFAULT",
2823
3014
option)
2824
3015
if server_settings["port"]:
2834
3025
server_settings["socket"] = os.dup(server_settings
2835
3026
["socket"])
2836
3027
del server_config
2837
3028
2838
3029
# Override the settings from the config file with command line
2839
3030
# options, if set.
2840
3031
for option in ("interface", "address", "port", "debug",
2858
3049
if server_settings["debug"]:
2859
3050
server_settings["foreground"] = True
2860
3051
# Now we have our good server settings in "server_settings"
2861
3052
2862
3053
##################################################################
2863
3054
2864
3055
if (not server_settings["zeroconf"]
2865
3056
and not (server_settings["port"]
2866
3057
or server_settings["socket"] != "")):
2867
3058
parser.error("Needs port or socket to work without Zeroconf")
2868
3059
2869
3060
# For convenience
2870
3061
debug = server_settings["debug"]
2871
3062
debuglevel = server_settings["debuglevel"]
2875
3066
stored_state_file)
2876
3067
foreground = server_settings["foreground"]
2877
3068
zeroconf = server_settings["zeroconf"]
2878
3069
2879
3070
if debug:
2880
3071
initlogger(debug, logging.DEBUG)
2881
3072
else:
2884
3075
else:
2885
3076
level = getattr(logging, debuglevel.upper())
2886
3077
initlogger(debug, level)
2887
3078
2888
3079
if server_settings["servicename"] != "Mandos":
2889
3080
syslogger.setFormatter(
2890
3081
logging.Formatter('Mandos ({}) [%(process)d]:'
2891
3082
' %(levelname)s: %(message)s'.format(
2892
3083
server_settings["servicename"])))
2893
3084
2894
3085
# Parse config file with clients
2895
client_config = configparser.SafeConfigParser(Client
2896
.client_defaults)
3086
client_config = configparser.ConfigParser(Client.client_defaults)
2897
3087
client_config.read(os.path.join(server_settings["configdir"],
2898
3088
"clients.conf"))
2899
3089
2900
3090
global mandos_dbus_service
2901
3091
mandos_dbus_service = None
2902
3092
2903
3093
socketfd = None
2904
3094
if server_settings["socket"] != "":
2905
3095
socketfd = server_settings["socket"]
2921
3111
except IOError as e:
2922
3112
logger.error("Could not open file %r", pidfilename,
2923
3113
exc_info=e)
2924
3114
2925
3115
for name, group in (("_mandos", "_mandos"),
2926
3116
("mandos", "mandos"),
2927
3117
("nobody", "nogroup")):
2937
3127
try:
2938
3128
os.setgid(gid)
2939
3129
os.setuid(uid)
3130
if debug:
3131
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3132
gid))
2940
3133
except OSError as error:
3134
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3135
.format(uid, gid, os.strerror(error.errno)))
2941
3136
if error.errno != errno.EPERM:
2942
3137
raise
2943
3138
2944
3139
if debug:
2945
3140
# Enable all possible GnuTLS debugging
2946
3141
2947
3142
# "Use a log level over 10 to enable all debugging options."
2948
3143
# - GnuTLS manual
2949
3144
gnutls.global_set_log_level(11)
2950
3145
2951
3146
@gnutls.log_func
2952
3147
def debug_gnutls(level, string):
2953
3148
logger.debug("GnuTLS: %s", string[:-1])
2954
3149
2955
3150
gnutls.global_set_log_function(debug_gnutls)
2956
3151
2957
3152
# Redirect stdin so all checkers get /dev/null
2958
3153
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2959
3154
os.dup2(null, sys.stdin.fileno())
2960
3155
if null > 2:
2961
3156
os.close(null)
2962
3157
2963
3158
# Need to fork before connecting to D-Bus
2964
3159
if not foreground:
2965
3160
# Close all input and output, do double fork, etc.
2966
3161
daemon()
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
3162
3163
if gi.version_info < (3, 10, 2):
3164
# multiprocessing will use threads, so before we use GLib we
3165
# need to inform GLib that threads will be used.
3166
GLib.threads_init()
3167
2972
3168
global main_loop
2973
3169
# From the Avahi example code
2974
3170
DBusGMainLoop(set_as_default=True)
2975
main_loop = GObject.MainLoop()
3171
main_loop = GLib.MainLoop()
2976
3172
bus = dbus.SystemBus()
2977
3173
# End of Avahi example code
2978
3174
if use_dbus:
2991
3187
if zeroconf:
2992
3188
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2993
3189
service = AvahiServiceToSyslog(
2994
name = server_settings["servicename"],
2995
servicetype = "_mandos._tcp",
2996
protocol = protocol,
2997
bus = bus)
3190
name=server_settings["servicename"],
3191
servicetype="_mandos._tcp",
3192
protocol=protocol,
3193
bus=bus)
2998
3194
if server_settings["interface"]:
2999
3195
service.interface = if_nametoindex(
3000
3196
server_settings["interface"].encode("utf-8"))
3001
3197
3002
3198
global multiprocessing_manager
3003
3199
multiprocessing_manager = multiprocessing.Manager()
3004
3200
3005
3201
client_class = Client
3006
3202
if use_dbus:
3007
client_class = functools.partial(ClientDBus, bus = bus)
3008
3203
client_class = functools.partial(ClientDBus, bus=bus)
3204
3009
3205
client_settings = Client.config_parser(client_config)
3010
3206
old_client_settings = {}
3011
3207
clients_data = {}
3012
3208
3013
3209
# This is used to redirect stdout and stderr for checker processes
3014
3210
global wnull
3015
wnull = open(os.devnull, "w") # A writable /dev/null
3211
wnull = open(os.devnull, "w") # A writable /dev/null
3016
3212
# Only used if server is running in foreground but not in debug
3017
3213
# mode
3018
3214
if debug or not foreground:
3019
3215
wnull.close()
3020
3216
3021
3217
# Get client data and settings from last running state.
3022
3218
if server_settings["restore"]:
3023
3219
try:
3024
3220
with open(stored_state_path, "rb") as stored_state:
3025
clients_data, old_client_settings = pickle.load(
3026
stored_state)
3221
if sys.version_info.major == 2:
3222
clients_data, old_client_settings = pickle.load(
3223
stored_state)
3224
else:
3225
bytes_clients_data, bytes_old_client_settings = (
3226
pickle.load(stored_state, encoding="bytes"))
3227
# Fix bytes to strings
3228
# clients_data
3229
# .keys()
3230
clients_data = {(key.decode("utf-8")
3231
if isinstance(key, bytes)
3232
else key): value
3233
for key, value in
3234
bytes_clients_data.items()}
3235
del bytes_clients_data
3236
for key in clients_data:
3237
value = {(k.decode("utf-8")
3238
if isinstance(k, bytes) else k): v
3239
for k, v in
3240
clients_data[key].items()}
3241
clients_data[key] = value
3242
# .client_structure
3243
value["client_structure"] = [
3244
(s.decode("utf-8")
3245
if isinstance(s, bytes)
3246
else s) for s in
3247
value["client_structure"]]
3248
# .name & .host
3249
for k in ("name", "host"):
3250
if isinstance(value[k], bytes):
3251
value[k] = value[k].decode("utf-8")
3252
if "key_id" not in value:
3253
value["key_id"] = ""
3254
elif "fingerprint" not in value:
3255
value["fingerprint"] = ""
3256
# old_client_settings
3257
# .keys()
3258
old_client_settings = {
3259
(key.decode("utf-8")
3260
if isinstance(key, bytes)
3261
else key): value
3262
for key, value in
3263
bytes_old_client_settings.items()}
3264
del bytes_old_client_settings
3265
# .host
3266
for value in old_client_settings.values():
3267
if isinstance(value["host"], bytes):
3268
value["host"] = (value["host"]
3269
.decode("utf-8"))
3027
3270
os.remove(stored_state_path)
3028
3271
except IOError as e:
3029
3272
if e.errno == errno.ENOENT:
3037
3280
logger.warning("Could not load persistent state: "
3038
3281
"EOFError:",
3039
3282
exc_info=e)
3040
3283
3041
3284
with PGPEngine() as pgp:
3042
3285
for client_name, client in clients_data.items():
3043
3286
# Skip removed clients
3044
3287
if client_name not in client_settings:
3045
3288
continue
3046
3289
3047
3290
# Decide which value to use after restoring saved state.
3048
3291
# We have three different values: Old config file,
3049
3292
# new config file, and saved state.
3060
3303
client[name] = value
3061
3304
except KeyError:
3062
3305
pass
3063
3306
3064
3307
# Clients who has passed its expire date can still be
3065
3308
# enabled if its last checker was successful. A Client
3066
3309
# whose checker succeeded before we stored its state is
3099
3342
client_name))
3100
3343
client["secret"] = (client_settings[client_name]
3101
3344
["secret"])
3102
3345
3103
3346
# Add/remove clients based on new changes made to config
3104
3347
for client_name in (set(old_client_settings)
3105
3348
- set(client_settings)):
3107
3350
for client_name in (set(client_settings)
3108
3351
- set(old_client_settings)):
3109
3352
clients_data[client_name] = client_settings[client_name]
3110
3353
3111
3354
# Create all client objects
3112
3355
for client_name, client in clients_data.items():
3113
3356
tcp_server.clients[client_name] = client_class(
3114
name = client_name,
3115
settings = client,
3116
server_settings = server_settings)
3117
3357
name=client_name,
3358
settings=client,
3359
server_settings=server_settings)
3360
3118
3361
if not tcp_server.clients:
3119
3362
logger.warning("No clients defined")
3120
3363
3121
3364
if not foreground:
3122
3365
if pidfile is not None:
3123
3366
pid = os.getpid()
3129
3372
pidfilename, pid)
3130
3373
del pidfile
3131
3374
del pidfilename
3132
3133
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
3134
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3135
3375
3376
for termsig in (signal.SIGHUP, signal.SIGTERM):
3377
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3378
lambda: main_loop.quit() and False)
3379
3136
3380
if use_dbus:
3137
3381
3138
3382
@alternate_dbus_interfaces(
3139
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3383
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3140
3384
class MandosDBusService(DBusObjectWithObjectManager):
3141
3385
"""A D-Bus proxy object"""
3142
3386
3143
3387
def __init__(self):
3144
3388
dbus.service.Object.__init__(self, bus, "/")
3145
3389
3146
3390
_interface = "se.recompile.Mandos"
3147
3391
3148
3392
@dbus.service.signal(_interface, signature="o")
3149
3393
def ClientAdded(self, objpath):
3150
3394
"D-Bus signal"
3151
3395
pass
3152
3396
3153
3397
@dbus.service.signal(_interface, signature="ss")
3154
def ClientNotFound(self, fingerprint, address):
3398
def ClientNotFound(self, key_id, address):
3155
3399
"D-Bus signal"
3156
3400
pass
3157
3401
3158
3402
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3159
3403
"true"})
3160
3404
@dbus.service.signal(_interface, signature="os")
3161
3405
def ClientRemoved(self, objpath, name):
3162
3406
"D-Bus signal"
3163
3407
pass
3164
3408
3165
3409
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3166
3410
"true"})
3167
3411
@dbus.service.method(_interface, out_signature="ao")
3168
3412
def GetAllClients(self):
3169
3413
"D-Bus method"
3170
3414
return dbus.Array(c.dbus_object_path for c in
3171
tcp_server.clients.itervalues())
3172
3415
tcp_server.clients.values())
3416
3173
3417
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3174
3418
"true"})
3175
3419
@dbus.service.method(_interface,
3177
3421
def GetAllClientsWithProperties(self):
3178
3422
"D-Bus method"
3179
3423
return dbus.Dictionary(
3180
{ c.dbus_object_path: c.GetAll(
3424
{c.dbus_object_path: c.GetAll(
3181
3425
"se.recompile.Mandos.Client")
3182
for c in tcp_server.clients.itervalues() },
3426
for c in tcp_server.clients.values()},
3183
3427
signature="oa{sv}")
3184
3428
3185
3429
@dbus.service.method(_interface, in_signature="o")
3186
3430
def RemoveClient(self, object_path):
3187
3431
"D-Bus method"
3188
for c in tcp_server.clients.itervalues():
3432
for c in tcp_server.clients.values():
3189
3433
if c.dbus_object_path == object_path:
3190
3434
del tcp_server.clients[c.name]
3191
3435
c.remove_from_connection()
3195
3439
self.client_removed_signal(c)
3196
3440
return
3197
3441
raise KeyError(object_path)
3198
3442
3199
3443
del _interface
3200
3444
3201
3445
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3202
out_signature = "a{oa{sa{sv}}}")
3446
out_signature="a{oa{sa{sv}}}")
3203
3447
def GetManagedObjects(self):
3204
3448
"""D-Bus method"""
3205
3449
return dbus.Dictionary(
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
3450
{client.dbus_object_path:
3451
dbus.Dictionary(
3452
{interface: client.GetAll(interface)
3453
for interface in
3454
client._get_all_interface_names()})
3455
for client in tcp_server.clients.values()})
3456
3213
3457
def client_added_signal(self, client):
3214
3458
"""Send the new standard signal and the old signal"""
3215
3459
if use_dbus:
3217
3461
self.InterfacesAdded(
3218
3462
client.dbus_object_path,
3219
3463
dbus.Dictionary(
3220
{ interface: client.GetAll(interface)
3221
for interface in
3222
client._get_all_interface_names()}))
3464
{interface: client.GetAll(interface)
3465
for interface in
3466
client._get_all_interface_names()}))
3223
3467
# Old signal
3224
3468
self.ClientAdded(client.dbus_object_path)
3225
3469
3226
3470
def client_removed_signal(self, client):
3227
3471
"""Send the new standard signal and the old signal"""
3228
3472
if use_dbus:
3233
3477
# Old signal
3234
3478
self.ClientRemoved(client.dbus_object_path,
3235
3479
client.name)
3236
3480
3237
3481
mandos_dbus_service = MandosDBusService()
3238
3482
3483
# Save modules to variables to exempt the modules from being
3484
# unloaded before the function registered with atexit() is run.
3485
mp = multiprocessing
3486
wn = wnull
3487
3239
3488
def cleanup():
3240
3489
"Cleanup function; run on exit"
3241
3490
if zeroconf:
3242
3491
service.cleanup()
3243
3244
multiprocessing.active_children()
3245
wnull.close()
3492
3493
mp.active_children()
3494
wn.close()
3246
3495
if not (tcp_server.clients or client_settings):
3247
3496
return
3248
3497
3249
3498
# Store client before exiting. Secrets are encrypted with key
3250
3499
# based on what config file has. If config file is
3251
3500
# removed/edited, old secret will thus be unrecovable.
3252
3501
clients = {}
3253
3502
with PGPEngine() as pgp:
3254
for client in tcp_server.clients.itervalues():
3503
for client in tcp_server.clients.values():
3255
3504
key = client_settings[client.name]["secret"]
3256
3505
client.encrypted_secret = pgp.encrypt(client.secret,
3257
3506
key)
3258
3507
client_dict = {}
3259
3508
3260
3509
# A list of attributes that can not be pickled
3261
3510
# + secret.
3262
exclude = { "bus", "changedstate", "secret",
3263
"checker", "server_settings" }
3511
exclude = {"bus", "changedstate", "secret",
3512
"checker", "server_settings"}
3264
3513
for name, typ in inspect.getmembers(dbus.service
3265
3514
.Object):
3266
3515
exclude.add(name)
3267
3516
3268
3517
client_dict["encrypted_secret"] = (client
3269
3518
.encrypted_secret)
3270
3519
for attr in client.client_structure:
3271
3520
if attr not in exclude:
3272
3521
client_dict[attr] = getattr(client, attr)
3273
3522
3274
3523
clients[client.name] = client_dict
3275
3524
del client_settings[client.name]["secret"]
3276
3525
3277
3526
try:
3278
3527
with tempfile.NamedTemporaryFile(
3279
3528
mode='wb',
3281
3530
prefix='clients-',
3282
3531
dir=os.path.dirname(stored_state_path),
3283
3532
delete=False) as stored_state:
3284
pickle.dump((clients, client_settings), stored_state)
3533
pickle.dump((clients, client_settings), stored_state,
3534
protocol=2)
3285
3535
tempname = stored_state.name
3286
3536
os.rename(tempname, stored_state_path)
3287
3537
except (IOError, OSError) as e:
3297
3547
logger.warning("Could not save persistent state:",
3298
3548
exc_info=e)
3299
3549
raise
3300
3550
3301
3551
# Delete all clients, and settings from config
3302
3552
while tcp_server.clients:
3303
3553
name, client = tcp_server.clients.popitem()
3309
3559
if use_dbus:
3310
3560
mandos_dbus_service.client_removed_signal(client)
3311
3561
client_settings.clear()
3312
3562
3313
3563
atexit.register(cleanup)
3314
3315
for client in tcp_server.clients.itervalues():
3564
3565
for client in tcp_server.clients.values():
3316
3566
if use_dbus:
3317
3567
# Emit D-Bus signal for adding
3318
3568
mandos_dbus_service.client_added_signal(client)
3319
3569
# Need to initiate checking of clients
3320
3570
if client.enabled:
3321
3571
client.init_checker()
3322
3572
3323
3573
tcp_server.enable()
3324
3574
tcp_server.server_activate()
3325
3575
3326
3576
# Find out what port we got
3327
3577
if zeroconf:
3328
3578
service.port = tcp_server.socket.getsockname()[1]
3333
3583
else: # IPv4
3334
3584
logger.info("Now listening on address %r, port %d",
3335
3585
*tcp_server.socket.getsockname())
3336
3337
#service.interface = tcp_server.socket.getsockname()[3]
3338
3586
3587
# service.interface = tcp_server.socket.getsockname()[3]
3588
3339
3589
try:
3340
3590
if zeroconf:
3341
3591
# From the Avahi example code
3346
3596
cleanup()
3347
3597
sys.exit(1)
3348
3598
# End of Avahi example code
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
3599
3600
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3601
lambda *args, **kwargs:
3602
(tcp_server.handle_request
3603
(*args[2:], **kwargs) or True))
3604
3355
3605
logger.debug("Starting main loop")
3356
3606
main_loop.run()
3357
3607
except AvahiError as error:
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0