To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to mandos
- browse files at revision 760
- compare with another revision
- download diff
- download tarball
- view history from revision 760
- Committer: Teddy Hogeborn
- Date: 2015-07-06 21:02:27 UTC
- Revision ID: teddy@recompile.se-20150706210227-4wz9tazr6bte3js1
debian/control (Build-Depends): Bug fix: Added "libnl-route-3-dev".
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- dracut-module
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python2.7
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
37
from future_builtins import *
42
38
43
39
try:
44
40
import SocketServer as socketserver
48
44
import argparse
49
45
import datetime
50
46
import errno
47
import gnutls.crypto
48
import gnutls.connection
49
import gnutls.errors
50
import gnutls.library.functions
51
import gnutls.library.constants
52
import gnutls.library.types
51
53
try:
52
54
import ConfigParser as configparser
53
55
except ImportError:
77
79
import itertools
78
80
import collections
79
81
import codecs
80
import unittest
81
82
82
83
import dbus
83
84
import dbus.service
84
import gi
85
from gi.repository import GLib
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
89
import avahi
86
90
from dbus.mainloop.glib import DBusGMainLoop
87
91
import ctypes
88
92
import ctypes.util
89
93
import xml.dom.minidom
90
94
import inspect
91
95
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
95
# Show warnings by default
96
if not sys.warnoptions:
97
import warnings
98
warnings.simplefilter("default")
99
100
# Try to find the value of SO_BINDTODEVICE:
101
96
try:
102
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
103
# newer, and it is also the most natural place for it:
104
97
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
105
98
except AttributeError:
106
99
try:
107
# This is where SO_BINDTODEVICE was up to and including Python
108
# 2.6, and also 3.2:
109
100
from IN import SO_BINDTODEVICE
110
101
except ImportError:
111
# In Python 2.7 it seems to have been removed entirely.
112
# Try running the C preprocessor:
113
try:
114
cc = subprocess.Popen(["cc", "--language=c", "-E",
115
"/dev/stdin"],
116
stdin=subprocess.PIPE,
117
stdout=subprocess.PIPE)
118
stdout = cc.communicate(
119
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
120
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
121
except (OSError, ValueError, IndexError):
122
# No value found
123
SO_BINDTODEVICE = None
102
SO_BINDTODEVICE = None
124
103
125
104
if sys.version_info.major == 2:
126
105
str = unicode
127
106
128
if sys.version_info < (3, 2):
129
configparser.Configparser = configparser.SafeConfigParser
130
131
version = "1.8.8"
107
version = "1.6.9"
132
108
stored_state_file = "clients.pickle"
133
109
134
110
logger = logging.getLogger()
135
logging.captureWarnings(True) # Show warnings via the logging system
136
111
syslogger = None
137
112
138
113
try:
139
114
if_nametoindex = ctypes.cdll.LoadLibrary(
140
115
ctypes.util.find_library("c")).if_nametoindex
141
116
except (OSError, AttributeError):
142
117
143
118
def if_nametoindex(interface):
144
119
"Get an interface index the hard way, i.e. using fcntl()"
145
120
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
150
125
return interface_index
151
126
152
127
153
def copy_function(func):
154
"""Make a copy of a function"""
155
if sys.version_info.major == 2:
156
return types.FunctionType(func.func_code,
157
func.func_globals,
158
func.func_name,
159
func.func_defaults,
160
func.func_closure)
161
else:
162
return types.FunctionType(func.__code__,
163
func.__globals__,
164
func.__name__,
165
func.__defaults__,
166
func.__closure__)
167
168
169
128
def initlogger(debug, level=logging.WARNING):
170
129
"""init logger and add loglevel"""
171
130
172
131
global syslogger
173
132
syslogger = (logging.handlers.SysLogHandler(
174
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
175
address="/dev/log"))
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
176
135
syslogger.setFormatter(logging.Formatter
177
136
('Mandos [%(process)d]: %(levelname)s:'
178
137
' %(message)s'))
179
138
logger.addHandler(syslogger)
180
139
181
140
if debug:
182
141
console = logging.StreamHandler()
183
142
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
193
152
pass
194
153
195
154
196
class PGPEngine:
155
class PGPEngine(object):
197
156
"""A simple class for OpenPGP symmetric encryption & decryption"""
198
157
199
158
def __init__(self):
200
159
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
201
self.gpg = "gpg"
202
try:
203
output = subprocess.check_output(["gpgconf"])
204
for line in output.splitlines():
205
name, text, path = line.split(b":")
206
if name == "gpg":
207
self.gpg = path
208
break
209
except OSError as e:
210
if e.errno != errno.ENOENT:
211
raise
212
160
self.gnupgargs = ['--batch',
213
'--homedir', self.tempdir,
161
'--home', self.tempdir,
214
162
'--force-mdc',
215
'--quiet']
216
# Only GPG version 1 has the --no-use-agent option.
217
if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
218
self.gnupgargs.append("--no-use-agent")
219
163
'--quiet',
164
'--no-use-agent']
165
220
166
def __enter__(self):
221
167
return self
222
168
223
169
def __exit__(self, exc_type, exc_value, traceback):
224
170
self._cleanup()
225
171
return False
226
172
227
173
def __del__(self):
228
174
self._cleanup()
229
175
230
176
def _cleanup(self):
231
177
if self.tempdir is not None:
232
178
# Delete contents of tempdir
233
179
for root, dirs, files in os.walk(self.tempdir,
234
topdown=False):
180
topdown = False):
235
181
for filename in files:
236
182
os.remove(os.path.join(root, filename))
237
183
for dirname in dirs:
239
185
# Remove tempdir
240
186
os.rmdir(self.tempdir)
241
187
self.tempdir = None
242
188
243
189
def password_encode(self, password):
244
190
# Passphrase can not be empty and can not contain newlines or
245
191
# NUL bytes. So we prefix it and hex encode it.
250
196
.replace(b"\n", b"\\n")
251
197
.replace(b"\0", b"\\x00"))
252
198
return encoded
253
199
254
200
def encrypt(self, data, password):
255
201
passphrase = self.password_encode(password)
256
202
with tempfile.NamedTemporaryFile(
257
203
dir=self.tempdir) as passfile:
258
204
passfile.write(passphrase)
259
205
passfile.flush()
260
proc = subprocess.Popen([self.gpg, '--symmetric',
206
proc = subprocess.Popen(['gpg', '--symmetric',
261
207
'--passphrase-file',
262
208
passfile.name]
263
209
+ self.gnupgargs,
264
stdin=subprocess.PIPE,
265
stdout=subprocess.PIPE,
266
stderr=subprocess.PIPE)
267
ciphertext, err = proc.communicate(input=data)
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
268
214
if proc.returncode != 0:
269
215
raise PGPError(err)
270
216
return ciphertext
271
217
272
218
def decrypt(self, data, password):
273
219
passphrase = self.password_encode(password)
274
220
with tempfile.NamedTemporaryFile(
275
dir=self.tempdir) as passfile:
221
dir = self.tempdir) as passfile:
276
222
passfile.write(passphrase)
277
223
passfile.flush()
278
proc = subprocess.Popen([self.gpg, '--decrypt',
224
proc = subprocess.Popen(['gpg', '--decrypt',
279
225
'--passphrase-file',
280
226
passfile.name]
281
227
+ self.gnupgargs,
282
stdin=subprocess.PIPE,
283
stdout=subprocess.PIPE,
284
stderr=subprocess.PIPE)
285
decrypted_plaintext, err = proc.communicate(input=data)
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
286
232
if proc.returncode != 0:
287
233
raise PGPError(err)
288
234
return decrypted_plaintext
289
235
290
236
291
# Pretend that we have an Avahi module
292
class avahi:
293
"""This isn't so much a class as it is a module-like namespace."""
294
IF_UNSPEC = -1 # avahi-common/address.h
295
PROTO_UNSPEC = -1 # avahi-common/address.h
296
PROTO_INET = 0 # avahi-common/address.h
297
PROTO_INET6 = 1 # avahi-common/address.h
298
DBUS_NAME = "org.freedesktop.Avahi"
299
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
300
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
301
DBUS_PATH_SERVER = "/"
302
303
@staticmethod
304
def string_array_to_txt_array(t):
305
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
306
for s in t), signature="ay")
307
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
308
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
309
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
310
SERVER_INVALID = 0 # avahi-common/defs.h
311
SERVER_REGISTERING = 1 # avahi-common/defs.h
312
SERVER_RUNNING = 2 # avahi-common/defs.h
313
SERVER_COLLISION = 3 # avahi-common/defs.h
314
SERVER_FAILURE = 4 # avahi-common/defs.h
315
316
317
237
class AvahiError(Exception):
318
238
def __init__(self, value, *args, **kwargs):
319
239
self.value = value
329
249
pass
330
250
331
251
332
class AvahiService:
252
class AvahiService(object):
333
253
"""An Avahi (Zeroconf) service.
334
254
335
255
Attributes:
336
256
interface: integer; avahi.IF_UNSPEC or an interface index.
337
257
Used to optionally bind to the specified interface.
349
269
server: D-Bus Server
350
270
bus: dbus.SystemBus()
351
271
"""
352
272
353
273
def __init__(self,
354
interface=avahi.IF_UNSPEC,
355
name=None,
356
servicetype=None,
357
port=None,
358
TXT=None,
359
domain="",
360
host="",
361
max_renames=32768,
362
protocol=avahi.PROTO_UNSPEC,
363
bus=None):
274
interface = avahi.IF_UNSPEC,
275
name = None,
276
servicetype = None,
277
port = None,
278
TXT = None,
279
domain = "",
280
host = "",
281
max_renames = 32768,
282
protocol = avahi.PROTO_UNSPEC,
283
bus = None):
364
284
self.interface = interface
365
285
self.name = name
366
286
self.type = servicetype
375
295
self.server = None
376
296
self.bus = bus
377
297
self.entry_group_state_changed_match = None
378
298
379
299
def rename(self, remove=True):
380
300
"""Derived from the Avahi example code"""
381
301
if self.rename_count >= self.max_renames:
401
321
logger.critical("D-Bus Exception", exc_info=error)
402
322
self.cleanup()
403
323
os._exit(1)
404
324
405
325
def remove(self):
406
326
"""Derived from the Avahi example code"""
407
327
if self.entry_group_state_changed_match is not None:
409
329
self.entry_group_state_changed_match = None
410
330
if self.group is not None:
411
331
self.group.Reset()
412
332
413
333
def add(self):
414
334
"""Derived from the Avahi example code"""
415
335
self.remove()
432
352
dbus.UInt16(self.port),
433
353
avahi.string_array_to_txt_array(self.TXT))
434
354
self.group.Commit()
435
355
436
356
def entry_group_state_changed(self, state, error):
437
357
"""Derived from the Avahi example code"""
438
358
logger.debug("Avahi entry group state change: %i", state)
439
359
440
360
if state == avahi.ENTRY_GROUP_ESTABLISHED:
441
361
logger.debug("Zeroconf service established.")
442
362
elif state == avahi.ENTRY_GROUP_COLLISION:
446
366
logger.critical("Avahi: Error in group state changed %s",
447
367
str(error))
448
368
raise AvahiGroupError("State changed: {!s}".format(error))
449
369
450
370
def cleanup(self):
451
371
"""Derived from the Avahi example code"""
452
372
if self.group is not None:
457
377
pass
458
378
self.group = None
459
379
self.remove()
460
380
461
381
def server_state_changed(self, state, error=None):
462
382
"""Derived from the Avahi example code"""
463
383
logger.debug("Avahi server state change: %i", state)
475
395
logger.error(bad_states[state] + ": %r", error)
476
396
self.cleanup()
477
397
elif state == avahi.SERVER_RUNNING:
478
try:
479
self.add()
480
except dbus.exceptions.DBusException as error:
481
if (error.get_dbus_name()
482
== "org.freedesktop.Avahi.CollisionError"):
483
logger.info("Local Zeroconf service name"
484
" collision.")
485
return self.rename(remove=False)
486
else:
487
logger.critical("D-Bus Exception", exc_info=error)
488
self.cleanup()
489
os._exit(1)
398
self.add()
490
399
else:
491
400
if error is None:
492
401
logger.debug("Unknown state: %r", state)
493
402
else:
494
403
logger.debug("Unknown state: %r: %r", state, error)
495
404
496
405
def activate(self):
497
406
"""Derived from the Avahi example code"""
498
407
if self.server is None:
509
418
class AvahiServiceToSyslog(AvahiService):
510
419
def rename(self, *args, **kwargs):
511
420
"""Add the new name to the syslog messages"""
512
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
421
ret = AvahiService.rename(self, *args, **kwargs)
513
422
syslogger.setFormatter(logging.Formatter(
514
423
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
515
424
.format(self.name)))
516
425
return ret
517
426
518
519
# Pretend that we have a GnuTLS module
520
class gnutls:
521
"""This isn't so much a class as it is a module-like namespace."""
522
523
library = ctypes.util.find_library("gnutls")
524
if library is None:
525
library = ctypes.util.find_library("gnutls-deb0")
526
_library = ctypes.cdll.LoadLibrary(library)
527
del library
528
529
# Unless otherwise indicated, the constants and types below are
530
# all from the gnutls/gnutls.h C header file.
531
532
# Constants
533
E_SUCCESS = 0
534
E_INTERRUPTED = -52
535
E_AGAIN = -28
536
CRT_OPENPGP = 2
537
CRT_RAWPK = 3
538
CLIENT = 2
539
SHUT_RDWR = 0
540
CRD_CERTIFICATE = 1
541
E_NO_CERTIFICATE_FOUND = -49
542
X509_FMT_DER = 0
543
NO_TICKETS = 1<<10
544
ENABLE_RAWPK = 1<<18
545
CTYPE_PEERS = 3
546
KEYID_USE_SHA256 = 1 # gnutls/x509.h
547
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
548
549
# Types
550
class session_int(ctypes.Structure):
551
_fields_ = []
552
session_t = ctypes.POINTER(session_int)
553
554
class certificate_credentials_st(ctypes.Structure):
555
_fields_ = []
556
certificate_credentials_t = ctypes.POINTER(
557
certificate_credentials_st)
558
certificate_type_t = ctypes.c_int
559
560
class datum_t(ctypes.Structure):
561
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
562
('size', ctypes.c_uint)]
563
564
class openpgp_crt_int(ctypes.Structure):
565
_fields_ = []
566
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
567
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
568
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
569
credentials_type_t = ctypes.c_int
570
transport_ptr_t = ctypes.c_void_p
571
close_request_t = ctypes.c_int
572
573
# Exceptions
574
class Error(Exception):
575
def __init__(self, message=None, code=None, args=()):
576
# Default usage is by a message string, but if a return
577
# code is passed, convert it to a string with
578
# gnutls.strerror()
579
self.code = code
580
if message is None and code is not None:
581
message = gnutls.strerror(code)
582
return super(gnutls.Error, self).__init__(
583
message, *args)
584
585
class CertificateSecurityError(Error):
586
pass
587
588
# Classes
589
class Credentials:
590
def __init__(self):
591
self._c_object = gnutls.certificate_credentials_t()
592
gnutls.certificate_allocate_credentials(
593
ctypes.byref(self._c_object))
594
self.type = gnutls.CRD_CERTIFICATE
595
596
def __del__(self):
597
gnutls.certificate_free_credentials(self._c_object)
598
599
class ClientSession:
600
def __init__(self, socket, credentials=None):
601
self._c_object = gnutls.session_t()
602
gnutls_flags = gnutls.CLIENT
603
if gnutls.check_version(b"3.5.6"):
604
gnutls_flags |= gnutls.NO_TICKETS
605
if gnutls.has_rawpk:
606
gnutls_flags |= gnutls.ENABLE_RAWPK
607
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
608
del gnutls_flags
609
gnutls.set_default_priority(self._c_object)
610
gnutls.transport_set_ptr(self._c_object, socket.fileno())
611
gnutls.handshake_set_private_extensions(self._c_object,
612
True)
613
self.socket = socket
614
if credentials is None:
615
credentials = gnutls.Credentials()
616
gnutls.credentials_set(self._c_object, credentials.type,
617
ctypes.cast(credentials._c_object,
618
ctypes.c_void_p))
619
self.credentials = credentials
620
621
def __del__(self):
622
gnutls.deinit(self._c_object)
623
624
def handshake(self):
625
return gnutls.handshake(self._c_object)
626
627
def send(self, data):
628
data = bytes(data)
629
data_len = len(data)
630
while data_len > 0:
631
data_len -= gnutls.record_send(self._c_object,
632
data[-data_len:],
633
data_len)
634
635
def bye(self):
636
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
637
638
# Error handling functions
639
def _error_code(result):
640
"""A function to raise exceptions on errors, suitable
641
for the 'restype' attribute on ctypes functions"""
642
if result >= 0:
643
return result
644
if result == gnutls.E_NO_CERTIFICATE_FOUND:
645
raise gnutls.CertificateSecurityError(code=result)
646
raise gnutls.Error(code=result)
647
648
def _retry_on_error(result, func, arguments):
649
"""A function to retry on some errors, suitable
650
for the 'errcheck' attribute on ctypes functions"""
651
while result < 0:
652
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
653
return _error_code(result)
654
result = func(*arguments)
655
return result
656
657
# Unless otherwise indicated, the function declarations below are
658
# all from the gnutls/gnutls.h C header file.
659
660
# Functions
661
priority_set_direct = _library.gnutls_priority_set_direct
662
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
663
ctypes.POINTER(ctypes.c_char_p)]
664
priority_set_direct.restype = _error_code
665
666
init = _library.gnutls_init
667
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
668
init.restype = _error_code
669
670
set_default_priority = _library.gnutls_set_default_priority
671
set_default_priority.argtypes = [session_t]
672
set_default_priority.restype = _error_code
673
674
record_send = _library.gnutls_record_send
675
record_send.argtypes = [session_t, ctypes.c_void_p,
676
ctypes.c_size_t]
677
record_send.restype = ctypes.c_ssize_t
678
record_send.errcheck = _retry_on_error
679
680
certificate_allocate_credentials = (
681
_library.gnutls_certificate_allocate_credentials)
682
certificate_allocate_credentials.argtypes = [
683
ctypes.POINTER(certificate_credentials_t)]
684
certificate_allocate_credentials.restype = _error_code
685
686
certificate_free_credentials = (
687
_library.gnutls_certificate_free_credentials)
688
certificate_free_credentials.argtypes = [
689
certificate_credentials_t]
690
certificate_free_credentials.restype = None
691
692
handshake_set_private_extensions = (
693
_library.gnutls_handshake_set_private_extensions)
694
handshake_set_private_extensions.argtypes = [session_t,
695
ctypes.c_int]
696
handshake_set_private_extensions.restype = None
697
698
credentials_set = _library.gnutls_credentials_set
699
credentials_set.argtypes = [session_t, credentials_type_t,
700
ctypes.c_void_p]
701
credentials_set.restype = _error_code
702
703
strerror = _library.gnutls_strerror
704
strerror.argtypes = [ctypes.c_int]
705
strerror.restype = ctypes.c_char_p
706
707
certificate_type_get = _library.gnutls_certificate_type_get
708
certificate_type_get.argtypes = [session_t]
709
certificate_type_get.restype = _error_code
710
711
certificate_get_peers = _library.gnutls_certificate_get_peers
712
certificate_get_peers.argtypes = [session_t,
713
ctypes.POINTER(ctypes.c_uint)]
714
certificate_get_peers.restype = ctypes.POINTER(datum_t)
715
716
global_set_log_level = _library.gnutls_global_set_log_level
717
global_set_log_level.argtypes = [ctypes.c_int]
718
global_set_log_level.restype = None
719
720
global_set_log_function = _library.gnutls_global_set_log_function
721
global_set_log_function.argtypes = [log_func]
722
global_set_log_function.restype = None
723
724
deinit = _library.gnutls_deinit
725
deinit.argtypes = [session_t]
726
deinit.restype = None
727
728
handshake = _library.gnutls_handshake
729
handshake.argtypes = [session_t]
730
handshake.restype = _error_code
731
handshake.errcheck = _retry_on_error
732
733
transport_set_ptr = _library.gnutls_transport_set_ptr
734
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
735
transport_set_ptr.restype = None
736
737
bye = _library.gnutls_bye
738
bye.argtypes = [session_t, close_request_t]
739
bye.restype = _error_code
740
bye.errcheck = _retry_on_error
741
742
check_version = _library.gnutls_check_version
743
check_version.argtypes = [ctypes.c_char_p]
744
check_version.restype = ctypes.c_char_p
745
746
_need_version = b"3.3.0"
747
if check_version(_need_version) is None:
748
raise self.Error("Needs GnuTLS {} or later"
749
.format(_need_version))
750
751
_tls_rawpk_version = b"3.6.6"
752
has_rawpk = bool(check_version(_tls_rawpk_version))
753
754
if has_rawpk:
755
# Types
756
class pubkey_st(ctypes.Structure):
757
_fields = []
758
pubkey_t = ctypes.POINTER(pubkey_st)
759
760
x509_crt_fmt_t = ctypes.c_int
761
762
# All the function declarations below are from gnutls/abstract.h
763
pubkey_init = _library.gnutls_pubkey_init
764
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
765
pubkey_init.restype = _error_code
766
767
pubkey_import = _library.gnutls_pubkey_import
768
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
769
x509_crt_fmt_t]
770
pubkey_import.restype = _error_code
771
772
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
773
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
774
ctypes.POINTER(ctypes.c_ubyte),
775
ctypes.POINTER(ctypes.c_size_t)]
776
pubkey_get_key_id.restype = _error_code
777
778
pubkey_deinit = _library.gnutls_pubkey_deinit
779
pubkey_deinit.argtypes = [pubkey_t]
780
pubkey_deinit.restype = None
781
else:
782
# All the function declarations below are from gnutls/openpgp.h
783
784
openpgp_crt_init = _library.gnutls_openpgp_crt_init
785
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
786
openpgp_crt_init.restype = _error_code
787
788
openpgp_crt_import = _library.gnutls_openpgp_crt_import
789
openpgp_crt_import.argtypes = [openpgp_crt_t,
790
ctypes.POINTER(datum_t),
791
openpgp_crt_fmt_t]
792
openpgp_crt_import.restype = _error_code
793
794
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
795
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
796
ctypes.POINTER(ctypes.c_uint)]
797
openpgp_crt_verify_self.restype = _error_code
798
799
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
800
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
801
openpgp_crt_deinit.restype = None
802
803
openpgp_crt_get_fingerprint = (
804
_library.gnutls_openpgp_crt_get_fingerprint)
805
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
806
ctypes.c_void_p,
807
ctypes.POINTER(
808
ctypes.c_size_t)]
809
openpgp_crt_get_fingerprint.restype = _error_code
810
811
if check_version(b"3.6.4"):
812
certificate_type_get2 = _library.gnutls_certificate_type_get2
813
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
814
certificate_type_get2.restype = _error_code
815
816
# Remove non-public functions
817
del _error_code, _retry_on_error
818
819
820
427
def call_pipe(connection, # : multiprocessing.Connection
821
428
func, *args, **kwargs):
822
429
"""This function is meant to be called by multiprocessing.Process
823
430
824
431
This function runs func(*args, **kwargs), and writes the resulting
825
432
return value on the provided multiprocessing.Connection.
826
433
"""
827
434
connection.send(func(*args, **kwargs))
828
435
connection.close()
829
436
830
831
class Client:
437
class Client(object):
832
438
"""A representation of a client host served by this server.
833
439
834
440
Attributes:
835
441
approved: bool(); 'None' if not yet approved/disapproved
836
442
approval_delay: datetime.timedelta(); Time to wait for approval
837
443
approval_duration: datetime.timedelta(); Duration of one approval
838
checker: multiprocessing.Process(); a running checker process used
839
to see if the client lives. 'None' if no process is
840
running.
841
checker_callback_tag: a GLib event source tag, or None
444
checker: subprocess.Popen(); a running checker process used
445
to see if the client lives.
446
'None' if no process is running.
447
checker_callback_tag: a gobject event source tag, or None
842
448
checker_command: string; External command which is run to check
843
449
if client lives. %() expansions are done at
844
450
runtime with vars(self) as dict, so that for
845
451
instance %(name)s can be used in the command.
846
checker_initiator_tag: a GLib event source tag, or None
452
checker_initiator_tag: a gobject event source tag, or None
847
453
created: datetime.datetime(); (UTC) object creation
848
454
client_structure: Object describing what attributes a client has
849
455
and is used for storing the client at exit
850
456
current_checker_command: string; current running checker_command
851
disable_initiator_tag: a GLib event source tag, or None
457
disable_initiator_tag: a gobject event source tag, or None
852
458
enabled: bool()
853
459
fingerprint: string (40 or 32 hexadecimal digits); used to
854
uniquely identify an OpenPGP client
855
key_id: string (64 hexadecimal digits); used to uniquely identify
856
a client using raw public keys
460
uniquely identify the client
857
461
host: string; available for use by the checker command
858
462
interval: datetime.timedelta(); How often to start a new checker
859
463
last_approval_request: datetime.datetime(); (UTC) or None
875
479
disabled, or None
876
480
server_settings: The server_settings dict from main()
877
481
"""
878
482
879
483
runtime_expansions = ("approval_delay", "approval_duration",
880
"created", "enabled", "expires", "key_id",
484
"created", "enabled", "expires",
881
485
"fingerprint", "host", "interval",
882
486
"last_approval_request", "last_checked_ok",
883
487
"last_enabled", "name", "timeout")
892
496
"approved_by_default": "True",
893
497
"enabled": "True",
894
498
}
895
499
896
500
@staticmethod
897
501
def config_parser(config):
898
502
"""Construct a new dict of client settings of this form:
905
509
for client_name in config.sections():
906
510
section = dict(config.items(client_name))
907
511
client = settings[client_name] = {}
908
512
909
513
client["host"] = section["host"]
910
514
# Reformat values from string types to Python types
911
515
client["approved_by_default"] = config.getboolean(
912
516
client_name, "approved_by_default")
913
517
client["enabled"] = config.getboolean(client_name,
914
518
"enabled")
915
916
# Uppercase and remove spaces from key_id and fingerprint
917
# for later comparison purposes with return value from the
918
# key_id() and fingerprint() functions
919
client["key_id"] = (section.get("key_id", "").upper()
920
.replace(" ", ""))
519
520
# Uppercase and remove spaces from fingerprint for later
521
# comparison purposes with return value from the
522
# fingerprint() function
921
523
client["fingerprint"] = (section["fingerprint"].upper()
922
524
.replace(" ", ""))
923
525
if "secret" in section:
924
client["secret"] = codecs.decode(section["secret"]
925
.encode("utf-8"),
926
"base64")
526
client["secret"] = section["secret"].decode("base64")
927
527
elif "secfile" in section:
928
528
with open(os.path.expanduser(os.path.expandvars
929
529
(section["secfile"])),
944
544
client["last_approval_request"] = None
945
545
client["last_checked_ok"] = None
946
546
client["last_checker_status"] = -2
947
547
948
548
return settings
949
950
def __init__(self, settings, name=None, server_settings=None):
549
550
def __init__(self, settings, name = None, server_settings=None):
951
551
self.name = name
952
552
if server_settings is None:
953
553
server_settings = {}
955
555
# adding all client settings
956
556
for setting, value in settings.items():
957
557
setattr(self, setting, value)
958
558
959
559
if self.enabled:
960
560
if not hasattr(self, "last_enabled"):
961
561
self.last_enabled = datetime.datetime.utcnow()
965
565
else:
966
566
self.last_enabled = None
967
567
self.expires = None
968
568
969
569
logger.debug("Creating client %r", self.name)
970
logger.debug(" Key ID: %s", self.key_id)
971
570
logger.debug(" Fingerprint: %s", self.fingerprint)
972
571
self.created = settings.get("created",
973
572
datetime.datetime.utcnow())
974
573
975
574
# attributes specific for this server instance
976
575
self.checker = None
977
576
self.checker_initiator_tag = None
983
582
self.changedstate = multiprocessing_manager.Condition(
984
583
multiprocessing_manager.Lock())
985
584
self.client_structure = [attr
986
for attr in self.__dict__.keys()
585
for attr in self.__dict__.iterkeys()
987
586
if not attr.startswith("_")]
988
587
self.client_structure.append("client_structure")
989
588
990
589
for name, t in inspect.getmembers(
991
590
type(self), lambda obj: isinstance(obj, property)):
992
591
if not name.startswith("_"):
993
592
self.client_structure.append(name)
994
593
995
594
# Send notice to process children that client state has changed
996
595
def send_changedstate(self):
997
596
with self.changedstate:
998
597
self.changedstate.notify_all()
999
598
1000
599
def enable(self):
1001
600
"""Start this client's checker and timeout hooks"""
1002
601
if getattr(self, "enabled", False):
1007
606
self.last_enabled = datetime.datetime.utcnow()
1008
607
self.init_checker()
1009
608
self.send_changedstate()
1010
609
1011
610
def disable(self, quiet=True):
1012
611
"""Disable this client."""
1013
612
if not getattr(self, "enabled", False):
1015
614
if not quiet:
1016
615
logger.info("Disabling client %s", self.name)
1017
616
if getattr(self, "disable_initiator_tag", None) is not None:
1018
GLib.source_remove(self.disable_initiator_tag)
617
gobject.source_remove(self.disable_initiator_tag)
1019
618
self.disable_initiator_tag = None
1020
619
self.expires = None
1021
620
if getattr(self, "checker_initiator_tag", None) is not None:
1022
GLib.source_remove(self.checker_initiator_tag)
621
gobject.source_remove(self.checker_initiator_tag)
1023
622
self.checker_initiator_tag = None
1024
623
self.stop_checker()
1025
624
self.enabled = False
1026
625
if not quiet:
1027
626
self.send_changedstate()
1028
# Do not run this again if called by a GLib.timeout_add
627
# Do not run this again if called by a gobject.timeout_add
1029
628
return False
1030
629
1031
630
def __del__(self):
1032
631
self.disable()
1033
632
1034
633
def init_checker(self):
1035
634
# Schedule a new checker to be started an 'interval' from now,
1036
635
# and every interval from then on.
1037
636
if self.checker_initiator_tag is not None:
1038
GLib.source_remove(self.checker_initiator_tag)
1039
self.checker_initiator_tag = GLib.timeout_add(
637
gobject.source_remove(self.checker_initiator_tag)
638
self.checker_initiator_tag = gobject.timeout_add(
1040
639
int(self.interval.total_seconds() * 1000),
1041
640
self.start_checker)
1042
641
# Schedule a disable() when 'timeout' has passed
1043
642
if self.disable_initiator_tag is not None:
1044
GLib.source_remove(self.disable_initiator_tag)
1045
self.disable_initiator_tag = GLib.timeout_add(
643
gobject.source_remove(self.disable_initiator_tag)
644
self.disable_initiator_tag = gobject.timeout_add(
1046
645
int(self.timeout.total_seconds() * 1000), self.disable)
1047
646
# Also start a new checker *right now*.
1048
647
self.start_checker()
1049
648
1050
649
def checker_callback(self, source, condition, connection,
1051
650
command):
1052
651
"""The checker has completed, so take appropriate actions."""
652
self.checker_callback_tag = None
653
self.checker = None
1053
654
# Read return code from connection (see call_pipe)
1054
655
returncode = connection.recv()
1055
656
connection.close()
1056
self.checker.join()
1057
self.checker_callback_tag = None
1058
self.checker = None
1059
657
1060
658
if returncode >= 0:
1061
659
self.last_checker_status = returncode
1062
660
self.last_checker_signal = None
1072
670
logger.warning("Checker for %(name)s crashed?",
1073
671
vars(self))
1074
672
return False
1075
673
1076
674
def checked_ok(self):
1077
675
"""Assert that the client has been seen, alive and well."""
1078
676
self.last_checked_ok = datetime.datetime.utcnow()
1079
677
self.last_checker_status = 0
1080
678
self.last_checker_signal = None
1081
679
self.bump_timeout()
1082
680
1083
681
def bump_timeout(self, timeout=None):
1084
682
"""Bump up the timeout for this client."""
1085
683
if timeout is None:
1086
684
timeout = self.timeout
1087
685
if self.disable_initiator_tag is not None:
1088
GLib.source_remove(self.disable_initiator_tag)
686
gobject.source_remove(self.disable_initiator_tag)
1089
687
self.disable_initiator_tag = None
1090
688
if getattr(self, "enabled", False):
1091
self.disable_initiator_tag = GLib.timeout_add(
689
self.disable_initiator_tag = gobject.timeout_add(
1092
690
int(timeout.total_seconds() * 1000), self.disable)
1093
691
self.expires = datetime.datetime.utcnow() + timeout
1094
692
1095
693
def need_approval(self):
1096
694
self.last_approval_request = datetime.datetime.utcnow()
1097
695
1098
696
def start_checker(self):
1099
697
"""Start a new checker subprocess if one is not running.
1100
698
1101
699
If a checker already exists, leave it running and do
1102
700
nothing."""
1103
701
# The reason for not killing a running checker is that if we
1108
706
# checkers alone, the checker would have to take more time
1109
707
# than 'timeout' for the client to be disabled, which is as it
1110
708
# should be.
1111
709
1112
710
if self.checker is not None and not self.checker.is_alive():
1113
711
logger.warning("Checker was not alive; joining")
1114
712
self.checker.join()
1118
716
# Escape attributes for the shell
1119
717
escaped_attrs = {
1120
718
attr: re.escape(str(getattr(self, attr)))
1121
for attr in self.runtime_expansions}
719
for attr in self.runtime_expansions }
1122
720
try:
1123
721
command = self.checker_command % escaped_attrs
1124
722
except TypeError as error:
1136
734
# The exception is when not debugging but nevertheless
1137
735
# running in the foreground; use the previously
1138
736
# created wnull.
1139
popen_args = {"close_fds": True,
1140
"shell": True,
1141
"cwd": "/"}
737
popen_args = { "close_fds": True,
738
"shell": True,
739
"cwd": "/" }
1142
740
if (not self.server_settings["debug"]
1143
741
and self.server_settings["foreground"]):
1144
742
popen_args.update({"stdout": wnull,
1145
"stderr": wnull})
1146
pipe = multiprocessing.Pipe(duplex=False)
743
"stderr": wnull })
744
pipe = multiprocessing.Pipe(duplex = False)
1147
745
self.checker = multiprocessing.Process(
1148
target=call_pipe,
1149
args=(pipe[1], subprocess.call, command),
1150
kwargs=popen_args)
746
target = call_pipe,
747
args = (pipe[1], subprocess.call, command),
748
kwargs = popen_args)
1151
749
self.checker.start()
1152
self.checker_callback_tag = GLib.io_add_watch(
1153
GLib.IOChannel.unix_new(pipe[0].fileno()),
1154
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
750
self.checker_callback_tag = gobject.io_add_watch(
751
pipe[0].fileno(), gobject.IO_IN,
1155
752
self.checker_callback, pipe[0], command)
1156
# Re-run this periodically if run by GLib.timeout_add
753
# Re-run this periodically if run by gobject.timeout_add
1157
754
return True
1158
755
1159
756
def stop_checker(self):
1160
757
"""Force the checker process, if any, to stop."""
1161
758
if self.checker_callback_tag:
1162
GLib.source_remove(self.checker_callback_tag)
759
gobject.source_remove(self.checker_callback_tag)
1163
760
self.checker_callback_tag = None
1164
761
if getattr(self, "checker", None) is None:
1165
762
return
1174
771
byte_arrays=False):
1175
772
"""Decorators for marking methods of a DBusObjectWithProperties to
1176
773
become properties on the D-Bus.
1177
774
1178
775
The decorated method will be called with no arguments by "Get"
1179
776
and with one argument by "Set".
1180
777
1181
778
The parameters, where they are supported, are the same as
1182
779
dbus.service.method, except there is only "signature", since the
1183
780
type from Get() and the type sent to Set() is the same.
1187
784
if byte_arrays and signature != "ay":
1188
785
raise ValueError("Byte arrays not supported for non-'ay'"
1189
786
" signature {!r}".format(signature))
1190
787
1191
788
def decorator(func):
1192
789
func._dbus_is_property = True
1193
790
func._dbus_interface = dbus_interface
1196
793
func._dbus_name = func.__name__
1197
794
if func._dbus_name.endswith("_dbus_property"):
1198
795
func._dbus_name = func._dbus_name[:-14]
1199
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
796
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1200
797
return func
1201
798
1202
799
return decorator
1203
800
1204
801
1205
802
def dbus_interface_annotations(dbus_interface):
1206
803
"""Decorator for marking functions returning interface annotations
1207
804
1208
805
Usage:
1209
806
1210
807
@dbus_interface_annotations("org.example.Interface")
1211
808
def _foo(self): # Function name does not matter
1212
809
return {"org.freedesktop.DBus.Deprecated": "true",
1213
810
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1214
811
"false"}
1215
812
"""
1216
813
1217
814
def decorator(func):
1218
815
func._dbus_is_interface = True
1219
816
func._dbus_interface = dbus_interface
1220
817
func._dbus_name = dbus_interface
1221
818
return func
1222
819
1223
820
return decorator
1224
821
1225
822
1226
823
def dbus_annotations(annotations):
1227
824
"""Decorator to annotate D-Bus methods, signals or properties
1228
825
Usage:
1229
826
1230
827
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1231
828
"org.freedesktop.DBus.Property."
1232
829
"EmitsChangedSignal": "false"})
1234
831
access="r")
1235
832
def Property_dbus_property(self):
1236
833
return dbus.Boolean(False)
1237
1238
See also the DBusObjectWithAnnotations class.
1239
834
"""
1240
835
1241
836
def decorator(func):
1242
837
func._dbus_annotations = annotations
1243
838
return func
1244
839
1245
840
return decorator
1246
841
1247
842
1263
858
pass
1264
859
1265
860
1266
class DBusObjectWithAnnotations(dbus.service.Object):
1267
"""A D-Bus object with annotations.
1268
1269
Classes inheriting from this can use the dbus_annotations
1270
decorator to add annotations to methods or signals.
861
class DBusObjectWithProperties(dbus.service.Object):
862
"""A D-Bus object with properties.
863
864
Classes inheriting from this can use the dbus_service_property
865
decorator to expose methods as D-Bus properties. It exposes the
866
standard Get(), Set(), and GetAll() methods on the D-Bus.
1271
867
"""
1272
868
1273
869
@staticmethod
1274
870
def _is_dbus_thing(thing):
1275
871
"""Returns a function testing if an attribute is a D-Bus thing
1276
872
1277
873
If called like _is_dbus_thing("method") it returns a function
1278
874
suitable for use as predicate to inspect.getmembers().
1279
875
"""
1280
876
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1281
877
False)
1282
878
1283
879
def _get_all_dbus_things(self, thing):
1284
880
"""Returns a generator of (name, attribute) pairs
1285
881
"""
1288
884
for cls in self.__class__.__mro__
1289
885
for name, athing in
1290
886
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1291
1292
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1293
out_signature="s",
1294
path_keyword='object_path',
1295
connection_keyword='connection')
1296
def Introspect(self, object_path, connection):
1297
"""Overloading of standard D-Bus method.
1298
1299
Inserts annotation tags on methods and signals.
1300
"""
1301
xmlstring = dbus.service.Object.Introspect(self, object_path,
1302
connection)
1303
try:
1304
document = xml.dom.minidom.parseString(xmlstring)
1305
1306
for if_tag in document.getElementsByTagName("interface"):
1307
# Add annotation tags
1308
for typ in ("method", "signal"):
1309
for tag in if_tag.getElementsByTagName(typ):
1310
annots = dict()
1311
for name, prop in (self.
1312
_get_all_dbus_things(typ)):
1313
if (name == tag.getAttribute("name")
1314
and prop._dbus_interface
1315
== if_tag.getAttribute("name")):
1316
annots.update(getattr(
1317
prop, "_dbus_annotations", {}))
1318
for name, value in annots.items():
1319
ann_tag = document.createElement(
1320
"annotation")
1321
ann_tag.setAttribute("name", name)
1322
ann_tag.setAttribute("value", value)
1323
tag.appendChild(ann_tag)
1324
# Add interface annotation tags
1325
for annotation, value in dict(
1326
itertools.chain.from_iterable(
1327
annotations().items()
1328
for name, annotations
1329
in self._get_all_dbus_things("interface")
1330
if name == if_tag.getAttribute("name")
1331
)).items():
1332
ann_tag = document.createElement("annotation")
1333
ann_tag.setAttribute("name", annotation)
1334
ann_tag.setAttribute("value", value)
1335
if_tag.appendChild(ann_tag)
1336
# Fix argument name for the Introspect method itself
1337
if (if_tag.getAttribute("name")
1338
== dbus.INTROSPECTABLE_IFACE):
1339
for cn in if_tag.getElementsByTagName("method"):
1340
if cn.getAttribute("name") == "Introspect":
1341
for arg in cn.getElementsByTagName("arg"):
1342
if (arg.getAttribute("direction")
1343
== "out"):
1344
arg.setAttribute("name",
1345
"xml_data")
1346
xmlstring = document.toxml("utf-8")
1347
document.unlink()
1348
except (AttributeError, xml.dom.DOMException,
1349
xml.parsers.expat.ExpatError) as error:
1350
logger.error("Failed to override Introspection method",
1351
exc_info=error)
1352
return xmlstring
1353
1354
1355
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1356
"""A D-Bus object with properties.
1357
1358
Classes inheriting from this can use the dbus_service_property
1359
decorator to expose methods as D-Bus properties. It exposes the
1360
standard Get(), Set(), and GetAll() methods on the D-Bus.
1361
"""
1362
887
1363
888
def _get_dbus_property(self, interface_name, property_name):
1364
889
"""Returns a bound method if one exists which is a D-Bus
1365
890
property with the specified name and interface.
1370
895
if (value._dbus_name == property_name
1371
896
and value._dbus_interface == interface_name):
1372
897
return value.__get__(self)
1373
898
1374
899
# No such property
1375
900
raise DBusPropertyNotFound("{}:{}.{}".format(
1376
901
self.dbus_object_path, interface_name, property_name))
1377
1378
@classmethod
1379
def _get_all_interface_names(cls):
1380
"""Get a sequence of all interfaces supported by an object"""
1381
return (name for name in set(getattr(getattr(x, attr),
1382
"_dbus_interface", None)
1383
for x in (inspect.getmro(cls))
1384
for attr in dir(x))
1385
if name is not None)
1386
902
1387
903
@dbus.service.method(dbus.PROPERTIES_IFACE,
1388
904
in_signature="ss",
1389
905
out_signature="v")
1397
913
if not hasattr(value, "variant_level"):
1398
914
return value
1399
915
return type(value)(value, variant_level=value.variant_level+1)
1400
916
1401
917
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1402
918
def Set(self, interface_name, property_name, value):
1403
919
"""Standard D-Bus property Set() method, see D-Bus standard.
1415
931
value = dbus.ByteArray(b''.join(chr(byte)
1416
932
for byte in value))
1417
933
prop(value)
1418
934
1419
935
@dbus.service.method(dbus.PROPERTIES_IFACE,
1420
936
in_signature="s",
1421
937
out_signature="a{sv}")
1422
938
def GetAll(self, interface_name):
1423
939
"""Standard D-Bus property GetAll() method, see D-Bus
1424
940
standard.
1425
941
1426
942
Note: Will not include properties with access="write".
1427
943
"""
1428
944
properties = {}
1439
955
properties[name] = value
1440
956
continue
1441
957
properties[name] = type(value)(
1442
value, variant_level=value.variant_level + 1)
958
value, variant_level = value.variant_level + 1)
1443
959
return dbus.Dictionary(properties, signature="sv")
1444
960
1445
961
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1446
962
def PropertiesChanged(self, interface_name, changed_properties,
1447
963
invalidated_properties):
1449
965
standard.
1450
966
"""
1451
967
pass
1452
968
1453
969
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1454
970
out_signature="s",
1455
971
path_keyword='object_path',
1456
972
connection_keyword='connection')
1457
973
def Introspect(self, object_path, connection):
1458
974
"""Overloading of standard D-Bus method.
1459
975
1460
976
Inserts property tags and interface annotation tags.
1461
977
"""
1462
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1463
object_path,
1464
connection)
978
xmlstring = dbus.service.Object.Introspect(self, object_path,
979
connection)
1465
980
try:
1466
981
document = xml.dom.minidom.parseString(xmlstring)
1467
982
1468
983
def make_tag(document, name, prop):
1469
984
e = document.createElement("property")
1470
985
e.setAttribute("name", name)
1471
986
e.setAttribute("type", prop._dbus_signature)
1472
987
e.setAttribute("access", prop._dbus_access)
1473
988
return e
1474
989
1475
990
for if_tag in document.getElementsByTagName("interface"):
1476
991
# Add property tags
1477
992
for tag in (make_tag(document, name, prop)
1480
995
if prop._dbus_interface
1481
996
== if_tag.getAttribute("name")):
1482
997
if_tag.appendChild(tag)
1483
# Add annotation tags for properties
1484
for tag in if_tag.getElementsByTagName("property"):
1485
annots = dict()
1486
for name, prop in self._get_all_dbus_things(
1487
"property"):
1488
if (name == tag.getAttribute("name")
1489
and prop._dbus_interface
1490
== if_tag.getAttribute("name")):
1491
annots.update(getattr(
1492
prop, "_dbus_annotations", {}))
1493
for name, value in annots.items():
1494
ann_tag = document.createElement(
1495
"annotation")
1496
ann_tag.setAttribute("name", name)
1497
ann_tag.setAttribute("value", value)
1498
tag.appendChild(ann_tag)
998
# Add annotation tags
999
for typ in ("method", "signal", "property"):
1000
for tag in if_tag.getElementsByTagName(typ):
1001
annots = dict()
1002
for name, prop in (self.
1003
_get_all_dbus_things(typ)):
1004
if (name == tag.getAttribute("name")
1005
and prop._dbus_interface
1006
== if_tag.getAttribute("name")):
1007
annots.update(getattr(
1008
prop, "_dbus_annotations", {}))
1009
for name, value in annots.items():
1010
ann_tag = document.createElement(
1011
"annotation")
1012
ann_tag.setAttribute("name", name)
1013
ann_tag.setAttribute("value", value)
1014
tag.appendChild(ann_tag)
1015
# Add interface annotation tags
1016
for annotation, value in dict(
1017
itertools.chain.from_iterable(
1018
annotations().items()
1019
for name, annotations
1020
in self._get_all_dbus_things("interface")
1021
if name == if_tag.getAttribute("name")
1022
)).items():
1023
ann_tag = document.createElement("annotation")
1024
ann_tag.setAttribute("name", annotation)
1025
ann_tag.setAttribute("value", value)
1026
if_tag.appendChild(ann_tag)
1499
1027
# Add the names to the return values for the
1500
1028
# "org.freedesktop.DBus.Properties" methods
1501
1029
if (if_tag.getAttribute("name")
1520
1048
return xmlstring
1521
1049
1522
1050
1523
try:
1524
dbus.OBJECT_MANAGER_IFACE
1525
except AttributeError:
1526
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1527
1528
1529
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1530
"""A D-Bus object with an ObjectManager.
1531
1532
Classes inheriting from this exposes the standard
1533
GetManagedObjects call and the InterfacesAdded and
1534
InterfacesRemoved signals on the standard
1535
"org.freedesktop.DBus.ObjectManager" interface.
1536
1537
Note: No signals are sent automatically; they must be sent
1538
manually.
1539
"""
1540
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1541
out_signature="a{oa{sa{sv}}}")
1542
def GetManagedObjects(self):
1543
"""This function must be overridden"""
1544
raise NotImplementedError()
1545
1546
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1547
signature="oa{sa{sv}}")
1548
def InterfacesAdded(self, object_path, interfaces_and_properties):
1549
pass
1550
1551
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1552
def InterfacesRemoved(self, object_path, interfaces):
1553
pass
1554
1555
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1556
out_signature="s",
1557
path_keyword='object_path',
1558
connection_keyword='connection')
1559
def Introspect(self, object_path, connection):
1560
"""Overloading of standard D-Bus method.
1561
1562
Override return argument name of GetManagedObjects to be
1563
"objpath_interfaces_and_properties"
1564
"""
1565
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1566
object_path,
1567
connection)
1568
try:
1569
document = xml.dom.minidom.parseString(xmlstring)
1570
1571
for if_tag in document.getElementsByTagName("interface"):
1572
# Fix argument name for the GetManagedObjects method
1573
if (if_tag.getAttribute("name")
1574
== dbus.OBJECT_MANAGER_IFACE):
1575
for cn in if_tag.getElementsByTagName("method"):
1576
if (cn.getAttribute("name")
1577
== "GetManagedObjects"):
1578
for arg in cn.getElementsByTagName("arg"):
1579
if (arg.getAttribute("direction")
1580
== "out"):
1581
arg.setAttribute(
1582
"name",
1583
"objpath_interfaces"
1584
"_and_properties")
1585
xmlstring = document.toxml("utf-8")
1586
document.unlink()
1587
except (AttributeError, xml.dom.DOMException,
1588
xml.parsers.expat.ExpatError) as error:
1589
logger.error("Failed to override Introspection method",
1590
exc_info=error)
1591
return xmlstring
1592
1593
1594
1051
def datetime_to_dbus(dt, variant_level=0):
1595
1052
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1596
1053
if dt is None:
1597
return dbus.String("", variant_level=variant_level)
1054
return dbus.String("", variant_level = variant_level)
1598
1055
return dbus.String(dt.isoformat(), variant_level=variant_level)
1599
1056
1600
1057
1603
1060
dbus.service.Object, it will add alternate D-Bus attributes with
1604
1061
interface names according to the "alt_interface_names" mapping.
1605
1062
Usage:
1606
1063
1607
1064
@alternate_dbus_interfaces({"org.example.Interface":
1608
1065
"net.example.AlternateInterface"})
1609
1066
class SampleDBusObject(dbus.service.Object):
1610
1067
@dbus.service.method("org.example.Interface")
1611
1068
def SampleDBusMethod():
1612
1069
pass
1613
1070
1614
1071
The above "SampleDBusMethod" on "SampleDBusObject" will be
1615
1072
reachable via two interfaces: "org.example.Interface" and
1616
1073
"net.example.AlternateInterface", the latter of which will have
1617
1074
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1618
1075
"true", unless "deprecate" is passed with a False value.
1619
1076
1620
1077
This works for methods and signals, and also for D-Bus properties
1621
1078
(from DBusObjectWithProperties) and interfaces (from the
1622
1079
dbus_interface_annotations decorator).
1623
1080
"""
1624
1081
1625
1082
def wrapper(cls):
1626
1083
for orig_interface_name, alt_interface_name in (
1627
1084
alt_interface_names.items()):
1642
1099
interface_names.add(alt_interface)
1643
1100
# Is this a D-Bus signal?
1644
1101
if getattr(attribute, "_dbus_is_signal", False):
1645
# Extract the original non-method undecorated
1646
# function by black magic
1647
1102
if sys.version_info.major == 2:
1103
# Extract the original non-method undecorated
1104
# function by black magic
1648
1105
nonmethod_func = (dict(
1649
1106
zip(attribute.func_code.co_freevars,
1650
1107
attribute.__closure__))
1651
1108
["func"].cell_contents)
1652
1109
else:
1653
nonmethod_func = (dict(
1654
zip(attribute.__code__.co_freevars,
1655
attribute.__closure__))
1656
["func"].cell_contents)
1110
nonmethod_func = attribute
1657
1111
# Create a new, but exactly alike, function
1658
1112
# object, and decorate it to be a new D-Bus signal
1659
1113
# with the alternate D-Bus interface name
1660
new_function = copy_function(nonmethod_func)
1114
if sys.version_info.major == 2:
1115
new_function = types.FunctionType(
1116
nonmethod_func.func_code,
1117
nonmethod_func.func_globals,
1118
nonmethod_func.func_name,
1119
nonmethod_func.func_defaults,
1120
nonmethod_func.func_closure)
1121
else:
1122
new_function = types.FunctionType(
1123
nonmethod_func.__code__,
1124
nonmethod_func.__globals__,
1125
nonmethod_func.__name__,
1126
nonmethod_func.__defaults__,
1127
nonmethod_func.__closure__)
1661
1128
new_function = (dbus.service.signal(
1662
1129
alt_interface,
1663
1130
attribute._dbus_signature)(new_function))
1667
1134
attribute._dbus_annotations)
1668
1135
except AttributeError:
1669
1136
pass
1670
1671
1137
# Define a creator of a function to call both the
1672
1138
# original and alternate functions, so both the
1673
1139
# original and alternate signals gets sent when
1676
1142
"""This function is a scope container to pass
1677
1143
func1 and func2 to the "call_both" function
1678
1144
outside of its arguments"""
1679
1680
@functools.wraps(func2)
1145
1681
1146
def call_both(*args, **kwargs):
1682
1147
"""This function will emit two D-Bus
1683
1148
signals by calling func1 and func2"""
1684
1149
func1(*args, **kwargs)
1685
1150
func2(*args, **kwargs)
1686
# Make wrapper function look like a D-Bus
1687
# signal
1688
for name, attr in inspect.getmembers(func2):
1689
if name.startswith("_dbus_"):
1690
setattr(call_both, name, attr)
1691
1151
1692
1152
return call_both
1693
1153
# Create the "call_both" function and add it to
1694
1154
# the class
1704
1164
alt_interface,
1705
1165
attribute._dbus_in_signature,
1706
1166
attribute._dbus_out_signature)
1707
(copy_function(attribute)))
1167
(types.FunctionType(attribute.func_code,
1168
attribute.func_globals,
1169
attribute.func_name,
1170
attribute.func_defaults,
1171
attribute.func_closure)))
1708
1172
# Copy annotations, if any
1709
1173
try:
1710
1174
attr[attrname]._dbus_annotations = dict(
1722
1186
attribute._dbus_access,
1723
1187
attribute._dbus_get_args_options
1724
1188
["byte_arrays"])
1725
(copy_function(attribute)))
1189
(types.FunctionType(
1190
attribute.func_code,
1191
attribute.func_globals,
1192
attribute.func_name,
1193
attribute.func_defaults,
1194
attribute.func_closure)))
1726
1195
# Copy annotations, if any
1727
1196
try:
1728
1197
attr[attrname]._dbus_annotations = dict(
1737
1206
# to the class.
1738
1207
attr[attrname] = (
1739
1208
dbus_interface_annotations(alt_interface)
1740
(copy_function(attribute)))
1209
(types.FunctionType(attribute.func_code,
1210
attribute.func_globals,
1211
attribute.func_name,
1212
attribute.func_defaults,
1213
attribute.func_closure)))
1741
1214
if deprecate:
1742
1215
# Deprecate all alternate interfaces
1743
iname = "_AlternateDBusNames_interface_annotation{}"
1216
iname="_AlternateDBusNames_interface_annotation{}"
1744
1217
for interface_name in interface_names:
1745
1218
1746
1219
@dbus_interface_annotations(interface_name)
1747
1220
def func(self):
1748
return {"org.freedesktop.DBus.Deprecated":
1749
"true"}
1221
return { "org.freedesktop.DBus.Deprecated":
1222
"true" }
1750
1223
# Find an unused name
1751
1224
for aname in (iname.format(i)
1752
1225
for i in itertools.count()):
1756
1229
if interface_names:
1757
1230
# Replace the class with a new subclass of it with
1758
1231
# methods, signals, etc. as created above.
1759
if sys.version_info.major == 2:
1760
cls = type(b"{}Alternate".format(cls.__name__),
1761
(cls, ), attr)
1762
else:
1763
cls = type("{}Alternate".format(cls.__name__),
1764
(cls, ), attr)
1232
cls = type(b"{}Alternate".format(cls.__name__),
1233
(cls, ), attr)
1765
1234
return cls
1766
1235
1767
1236
return wrapper
1768
1237
1769
1238
1771
1240
"se.bsnet.fukt.Mandos"})
1772
1241
class ClientDBus(Client, DBusObjectWithProperties):
1773
1242
"""A Client class using D-Bus
1774
1243
1775
1244
Attributes:
1776
1245
dbus_object_path: dbus.ObjectPath
1777
1246
bus: dbus.SystemBus()
1778
1247
"""
1779
1248
1780
1249
runtime_expansions = (Client.runtime_expansions
1781
1250
+ ("dbus_object_path", ))
1782
1251
1783
1252
_interface = "se.recompile.Mandos.Client"
1784
1253
1785
1254
# dbus.service.Object doesn't use super(), so we can't either.
1786
1787
def __init__(self, bus=None, *args, **kwargs):
1255
1256
def __init__(self, bus = None, *args, **kwargs):
1788
1257
self.bus = bus
1789
1258
Client.__init__(self, *args, **kwargs)
1790
1259
# Only now, when this client is initialized, can it show up on
1796
1265
"/clients/" + client_object_name)
1797
1266
DBusObjectWithProperties.__init__(self, self.bus,
1798
1267
self.dbus_object_path)
1799
1268
1800
1269
def notifychangeproperty(transform_func, dbus_name,
1801
1270
type_func=lambda x: x,
1802
1271
variant_level=1,
1804
1273
_interface=_interface):
1805
1274
""" Modify a variable so that it's a property which announces
1806
1275
its changes to DBus.
1807
1276
1808
1277
transform_fun: Function that takes a value and a variant_level
1809
1278
and transforms it to a D-Bus type.
1810
1279
dbus_name: D-Bus name of the variable
1813
1282
variant_level: D-Bus variant level. Default: 1
1814
1283
"""
1815
1284
attrname = "_{}".format(dbus_name)
1816
1285
1817
1286
def setter(self, value):
1818
1287
if hasattr(self, "dbus_object_path"):
1819
1288
if (not hasattr(self, attrname) or
1826
1295
else:
1827
1296
dbus_value = transform_func(
1828
1297
type_func(value),
1829
variant_level=variant_level)
1298
variant_level = variant_level)
1830
1299
self.PropertyChanged(dbus.String(dbus_name),
1831
1300
dbus_value)
1832
1301
self.PropertiesChanged(
1833
1302
_interface,
1834
dbus.Dictionary({dbus.String(dbus_name):
1835
dbus_value}),
1303
dbus.Dictionary({ dbus.String(dbus_name):
1304
dbus_value }),
1836
1305
dbus.Array())
1837
1306
setattr(self, attrname, value)
1838
1307
1839
1308
return property(lambda self: getattr(self, attrname), setter)
1840
1309
1841
1310
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1842
1311
approvals_pending = notifychangeproperty(dbus.Boolean,
1843
1312
"ApprovalPending",
1844
type_func=bool)
1313
type_func = bool)
1845
1314
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1846
1315
last_enabled = notifychangeproperty(datetime_to_dbus,
1847
1316
"LastEnabled")
1848
1317
checker = notifychangeproperty(
1849
1318
dbus.Boolean, "CheckerRunning",
1850
type_func=lambda checker: checker is not None)
1319
type_func = lambda checker: checker is not None)
1851
1320
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1852
1321
"LastCheckedOK")
1853
1322
last_checker_status = notifychangeproperty(dbus.Int16,
1858
1327
"ApprovedByDefault")
1859
1328
approval_delay = notifychangeproperty(
1860
1329
dbus.UInt64, "ApprovalDelay",
1861
type_func=lambda td: td.total_seconds() * 1000)
1330
type_func = lambda td: td.total_seconds() * 1000)
1862
1331
approval_duration = notifychangeproperty(
1863
1332
dbus.UInt64, "ApprovalDuration",
1864
type_func=lambda td: td.total_seconds() * 1000)
1333
type_func = lambda td: td.total_seconds() * 1000)
1865
1334
host = notifychangeproperty(dbus.String, "Host")
1866
1335
timeout = notifychangeproperty(
1867
1336
dbus.UInt64, "Timeout",
1868
type_func=lambda td: td.total_seconds() * 1000)
1337
type_func = lambda td: td.total_seconds() * 1000)
1869
1338
extended_timeout = notifychangeproperty(
1870
1339
dbus.UInt64, "ExtendedTimeout",
1871
type_func=lambda td: td.total_seconds() * 1000)
1340
type_func = lambda td: td.total_seconds() * 1000)
1872
1341
interval = notifychangeproperty(
1873
1342
dbus.UInt64, "Interval",
1874
type_func=lambda td: td.total_seconds() * 1000)
1343
type_func = lambda td: td.total_seconds() * 1000)
1875
1344
checker_command = notifychangeproperty(dbus.String, "Checker")
1876
1345
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1877
1346
invalidate_only=True)
1878
1347
1879
1348
del notifychangeproperty
1880
1349
1881
1350
def __del__(self, *args, **kwargs):
1882
1351
try:
1883
1352
self.remove_from_connection()
1886
1355
if hasattr(DBusObjectWithProperties, "__del__"):
1887
1356
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1888
1357
Client.__del__(self, *args, **kwargs)
1889
1358
1890
1359
def checker_callback(self, source, condition,
1891
1360
connection, command, *args, **kwargs):
1892
1361
ret = Client.checker_callback(self, source, condition,
1896
1365
if exitstatus >= 0:
1897
1366
# Emit D-Bus signal
1898
1367
self.CheckerCompleted(dbus.Int16(exitstatus),
1899
# This is specific to GNU libC
1900
dbus.Int64(exitstatus << 8),
1368
dbus.Int64(0),
1901
1369
dbus.String(command))
1902
1370
else:
1903
1371
# Emit D-Bus signal
1904
1372
self.CheckerCompleted(dbus.Int16(-1),
1905
1373
dbus.Int64(
1906
# This is specific to GNU libC
1907
(exitstatus << 8)
1908
| self.last_checker_signal),
1374
self.last_checker_signal),
1909
1375
dbus.String(command))
1910
1376
return ret
1911
1377
1912
1378
def start_checker(self, *args, **kwargs):
1913
1379
old_checker_pid = getattr(self.checker, "pid", None)
1914
1380
r = Client.start_checker(self, *args, **kwargs)
1918
1384
# Emit D-Bus signal
1919
1385
self.CheckerStarted(self.current_checker_command)
1920
1386
return r
1921
1387
1922
1388
def _reset_approved(self):
1923
1389
self.approved = None
1924
1390
return False
1925
1391
1926
1392
def approve(self, value=True):
1927
1393
self.approved = value
1928
GLib.timeout_add(int(self.approval_duration.total_seconds()
1929
* 1000), self._reset_approved)
1394
gobject.timeout_add(int(self.approval_duration.total_seconds()
1395
* 1000), self._reset_approved)
1930
1396
self.send_changedstate()
1931
1932
# D-Bus methods, signals & properties
1933
1934
# Interfaces
1935
1936
# Signals
1937
1397
1398
## D-Bus methods, signals & properties
1399
1400
## Interfaces
1401
1402
## Signals
1403
1938
1404
# CheckerCompleted - signal
1939
1405
@dbus.service.signal(_interface, signature="nxs")
1940
1406
def CheckerCompleted(self, exitcode, waitstatus, command):
1941
1407
"D-Bus signal"
1942
1408
pass
1943
1409
1944
1410
# CheckerStarted - signal
1945
1411
@dbus.service.signal(_interface, signature="s")
1946
1412
def CheckerStarted(self, command):
1947
1413
"D-Bus signal"
1948
1414
pass
1949
1415
1950
1416
# PropertyChanged - signal
1951
1417
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1952
1418
@dbus.service.signal(_interface, signature="sv")
1953
1419
def PropertyChanged(self, property, value):
1954
1420
"D-Bus signal"
1955
1421
pass
1956
1422
1957
1423
# GotSecret - signal
1958
1424
@dbus.service.signal(_interface)
1959
1425
def GotSecret(self):
1962
1428
server to mandos-client
1963
1429
"""
1964
1430
pass
1965
1431
1966
1432
# Rejected - signal
1967
1433
@dbus.service.signal(_interface, signature="s")
1968
1434
def Rejected(self, reason):
1969
1435
"D-Bus signal"
1970
1436
pass
1971
1437
1972
1438
# NeedApproval - signal
1973
1439
@dbus.service.signal(_interface, signature="tb")
1974
1440
def NeedApproval(self, timeout, default):
1975
1441
"D-Bus signal"
1976
1442
return self.need_approval()
1977
1978
# Methods
1979
1443
1444
## Methods
1445
1980
1446
# Approve - method
1981
1447
@dbus.service.method(_interface, in_signature="b")
1982
1448
def Approve(self, value):
1983
1449
self.approve(value)
1984
1450
1985
1451
# CheckedOK - method
1986
1452
@dbus.service.method(_interface)
1987
1453
def CheckedOK(self):
1988
1454
self.checked_ok()
1989
1455
1990
1456
# Enable - method
1991
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1992
1457
@dbus.service.method(_interface)
1993
1458
def Enable(self):
1994
1459
"D-Bus method"
1995
1460
self.enable()
1996
1461
1997
1462
# StartChecker - method
1998
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1999
1463
@dbus.service.method(_interface)
2000
1464
def StartChecker(self):
2001
1465
"D-Bus method"
2002
1466
self.start_checker()
2003
1467
2004
1468
# Disable - method
2005
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2006
1469
@dbus.service.method(_interface)
2007
1470
def Disable(self):
2008
1471
"D-Bus method"
2009
1472
self.disable()
2010
1473
2011
1474
# StopChecker - method
2012
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2013
1475
@dbus.service.method(_interface)
2014
1476
def StopChecker(self):
2015
1477
self.stop_checker()
2016
2017
# Properties
2018
1478
1479
## Properties
1480
2019
1481
# ApprovalPending - property
2020
1482
@dbus_service_property(_interface, signature="b", access="read")
2021
1483
def ApprovalPending_dbus_property(self):
2022
1484
return dbus.Boolean(bool(self.approvals_pending))
2023
1485
2024
1486
# ApprovedByDefault - property
2025
1487
@dbus_service_property(_interface,
2026
1488
signature="b",
2029
1491
if value is None: # get
2030
1492
return dbus.Boolean(self.approved_by_default)
2031
1493
self.approved_by_default = bool(value)
2032
1494
2033
1495
# ApprovalDelay - property
2034
1496
@dbus_service_property(_interface,
2035
1497
signature="t",
2039
1501
return dbus.UInt64(self.approval_delay.total_seconds()
2040
1502
* 1000)
2041
1503
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2042
1504
2043
1505
# ApprovalDuration - property
2044
1506
@dbus_service_property(_interface,
2045
1507
signature="t",
2049
1511
return dbus.UInt64(self.approval_duration.total_seconds()
2050
1512
* 1000)
2051
1513
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2052
1514
2053
1515
# Name - property
2054
@dbus_annotations(
2055
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2056
1516
@dbus_service_property(_interface, signature="s", access="read")
2057
1517
def Name_dbus_property(self):
2058
1518
return dbus.String(self.name)
2059
2060
# KeyID - property
2061
@dbus_annotations(
2062
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2063
@dbus_service_property(_interface, signature="s", access="read")
2064
def KeyID_dbus_property(self):
2065
return dbus.String(self.key_id)
2066
1519
2067
1520
# Fingerprint - property
2068
@dbus_annotations(
2069
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2070
1521
@dbus_service_property(_interface, signature="s", access="read")
2071
1522
def Fingerprint_dbus_property(self):
2072
1523
return dbus.String(self.fingerprint)
2073
1524
2074
1525
# Host - property
2075
1526
@dbus_service_property(_interface,
2076
1527
signature="s",
2079
1530
if value is None: # get
2080
1531
return dbus.String(self.host)
2081
1532
self.host = str(value)
2082
1533
2083
1534
# Created - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
1535
@dbus_service_property(_interface, signature="s", access="read")
2087
1536
def Created_dbus_property(self):
2088
1537
return datetime_to_dbus(self.created)
2089
1538
2090
1539
# LastEnabled - property
2091
1540
@dbus_service_property(_interface, signature="s", access="read")
2092
1541
def LastEnabled_dbus_property(self):
2093
1542
return datetime_to_dbus(self.last_enabled)
2094
1543
2095
1544
# Enabled - property
2096
1545
@dbus_service_property(_interface,
2097
1546
signature="b",
2103
1552
self.enable()
2104
1553
else:
2105
1554
self.disable()
2106
1555
2107
1556
# LastCheckedOK - property
2108
1557
@dbus_service_property(_interface,
2109
1558
signature="s",
2113
1562
self.checked_ok()
2114
1563
return
2115
1564
return datetime_to_dbus(self.last_checked_ok)
2116
1565
2117
1566
# LastCheckerStatus - property
2118
1567
@dbus_service_property(_interface, signature="n", access="read")
2119
1568
def LastCheckerStatus_dbus_property(self):
2120
1569
return dbus.Int16(self.last_checker_status)
2121
1570
2122
1571
# Expires - property
2123
1572
@dbus_service_property(_interface, signature="s", access="read")
2124
1573
def Expires_dbus_property(self):
2125
1574
return datetime_to_dbus(self.expires)
2126
1575
2127
1576
# LastApprovalRequest - property
2128
1577
@dbus_service_property(_interface, signature="s", access="read")
2129
1578
def LastApprovalRequest_dbus_property(self):
2130
1579
return datetime_to_dbus(self.last_approval_request)
2131
1580
2132
1581
# Timeout - property
2133
1582
@dbus_service_property(_interface,
2134
1583
signature="t",
2149
1598
if (getattr(self, "disable_initiator_tag", None)
2150
1599
is None):
2151
1600
return
2152
GLib.source_remove(self.disable_initiator_tag)
2153
self.disable_initiator_tag = GLib.timeout_add(
1601
gobject.source_remove(self.disable_initiator_tag)
1602
self.disable_initiator_tag = gobject.timeout_add(
2154
1603
int((self.expires - now).total_seconds() * 1000),
2155
1604
self.disable)
2156
1605
2157
1606
# ExtendedTimeout - property
2158
1607
@dbus_service_property(_interface,
2159
1608
signature="t",
2163
1612
return dbus.UInt64(self.extended_timeout.total_seconds()
2164
1613
* 1000)
2165
1614
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2166
1615
2167
1616
# Interval - property
2168
1617
@dbus_service_property(_interface,
2169
1618
signature="t",
2176
1625
return
2177
1626
if self.enabled:
2178
1627
# Reschedule checker run
2179
GLib.source_remove(self.checker_initiator_tag)
2180
self.checker_initiator_tag = GLib.timeout_add(
1628
gobject.source_remove(self.checker_initiator_tag)
1629
self.checker_initiator_tag = gobject.timeout_add(
2181
1630
value, self.start_checker)
2182
self.start_checker() # Start one now, too
2183
1631
self.start_checker() # Start one now, too
1632
2184
1633
# Checker - property
2185
1634
@dbus_service_property(_interface,
2186
1635
signature="s",
2189
1638
if value is None: # get
2190
1639
return dbus.String(self.checker_command)
2191
1640
self.checker_command = str(value)
2192
1641
2193
1642
# CheckerRunning - property
2194
1643
@dbus_service_property(_interface,
2195
1644
signature="b",
2201
1650
self.start_checker()
2202
1651
else:
2203
1652
self.stop_checker()
2204
1653
2205
1654
# ObjectPath - property
2206
@dbus_annotations(
2207
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2208
"org.freedesktop.DBus.Deprecated": "true"})
2209
1655
@dbus_service_property(_interface, signature="o", access="read")
2210
1656
def ObjectPath_dbus_property(self):
2211
return self.dbus_object_path # is already a dbus.ObjectPath
2212
1657
return self.dbus_object_path # is already a dbus.ObjectPath
1658
2213
1659
# Secret = property
2214
@dbus_annotations(
2215
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2216
"invalidates"})
2217
1660
@dbus_service_property(_interface,
2218
1661
signature="ay",
2219
1662
access="write",
2220
1663
byte_arrays=True)
2221
1664
def Secret_dbus_property(self, value):
2222
1665
self.secret = bytes(value)
2223
1666
2224
1667
del _interface
2225
1668
2226
1669
2227
class ProxyClient:
2228
def __init__(self, child_pipe, key_id, fpr, address):
1670
class ProxyClient(object):
1671
def __init__(self, child_pipe, fpr, address):
2229
1672
self._pipe = child_pipe
2230
self._pipe.send(('init', key_id, fpr, address))
1673
self._pipe.send(('init', fpr, address))
2231
1674
if not self._pipe.recv():
2232
raise KeyError(key_id or fpr)
2233
1675
raise KeyError(fpr)
1676
2234
1677
def __getattribute__(self, name):
2235
1678
if name == '_pipe':
2236
1679
return super(ProxyClient, self).__getattribute__(name)
2239
1682
if data[0] == 'data':
2240
1683
return data[1]
2241
1684
if data[0] == 'function':
2242
1685
2243
1686
def func(*args, **kwargs):
2244
1687
self._pipe.send(('funcall', name, args, kwargs))
2245
1688
return self._pipe.recv()[1]
2246
1689
2247
1690
return func
2248
1691
2249
1692
def __setattr__(self, name, value):
2250
1693
if name == '_pipe':
2251
1694
return super(ProxyClient, self).__setattr__(name, value)
2254
1697
2255
1698
class ClientHandler(socketserver.BaseRequestHandler, object):
2256
1699
"""A class to handle client connections.
2257
1700
2258
1701
Instantiated once for each connection to handle it.
2259
1702
Note: This will run in its own forked process."""
2260
1703
2261
1704
def handle(self):
2262
1705
with contextlib.closing(self.server.child_pipe) as child_pipe:
2263
1706
logger.info("TCP connection from: %s",
2264
1707
str(self.client_address))
2265
1708
logger.debug("Pipe FD: %d",
2266
1709
self.server.child_pipe.fileno())
2267
2268
session = gnutls.ClientSession(self.request)
2269
2270
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2271
# "+AES-256-CBC", "+SHA1",
2272
# "+COMP-NULL", "+CTYPE-OPENPGP",
2273
# "+DHE-DSS"))
1710
1711
session = gnutls.connection.ClientSession(
1712
self.request, gnutls.connection .X509Credentials())
1713
1714
# Note: gnutls.connection.X509Credentials is really a
1715
# generic GnuTLS certificate credentials object so long as
1716
# no X.509 keys are added to it. Therefore, we can use it
1717
# here despite using OpenPGP certificates.
1718
1719
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1720
# "+AES-256-CBC", "+SHA1",
1721
# "+COMP-NULL", "+CTYPE-OPENPGP",
1722
# "+DHE-DSS"))
2274
1723
# Use a fallback default, since this MUST be set.
2275
1724
priority = self.server.gnutls_priority
2276
1725
if priority is None:
2277
1726
priority = "NORMAL"
2278
gnutls.priority_set_direct(session._c_object,
2279
priority.encode("utf-8"),
2280
None)
2281
1727
gnutls.library.functions.gnutls_priority_set_direct(
1728
session._c_object, priority, None)
1729
2282
1730
# Start communication using the Mandos protocol
2283
1731
# Get protocol number
2284
1732
line = self.request.makefile().readline()
2289
1737
except (ValueError, IndexError, RuntimeError) as error:
2290
1738
logger.error("Unknown protocol version: %s", error)
2291
1739
return
2292
1740
2293
1741
# Start GnuTLS connection
2294
1742
try:
2295
1743
session.handshake()
2296
except gnutls.Error as error:
1744
except gnutls.errors.GNUTLSError as error:
2297
1745
logger.warning("Handshake failed: %s", error)
2298
1746
# Do not run session.bye() here: the session is not
2299
1747
# established. Just abandon the request.
2300
1748
return
2301
1749
logger.debug("Handshake succeeded")
2302
1750
2303
1751
approval_required = False
2304
1752
try:
2305
if gnutls.has_rawpk:
2306
fpr = b""
2307
try:
2308
key_id = self.key_id(
2309
self.peer_certificate(session))
2310
except (TypeError, gnutls.Error) as error:
2311
logger.warning("Bad certificate: %s", error)
2312
return
2313
logger.debug("Key ID: %s", key_id)
2314
2315
else:
2316
key_id = b""
2317
try:
2318
fpr = self.fingerprint(
2319
self.peer_certificate(session))
2320
except (TypeError, gnutls.Error) as error:
2321
logger.warning("Bad certificate: %s", error)
2322
return
2323
logger.debug("Fingerprint: %s", fpr)
2324
2325
try:
2326
client = ProxyClient(child_pipe, key_id, fpr,
1753
try:
1754
fpr = self.fingerprint(
1755
self.peer_certificate(session))
1756
except (TypeError,
1757
gnutls.errors.GNUTLSError) as error:
1758
logger.warning("Bad certificate: %s", error)
1759
return
1760
logger.debug("Fingerprint: %s", fpr)
1761
1762
try:
1763
client = ProxyClient(child_pipe, fpr,
2327
1764
self.client_address)
2328
1765
except KeyError:
2329
1766
return
2330
1767
2331
1768
if client.approval_delay:
2332
1769
delay = client.approval_delay
2333
1770
client.approvals_pending += 1
2334
1771
approval_required = True
2335
1772
2336
1773
while True:
2337
1774
if not client.enabled:
2338
1775
logger.info("Client %s is disabled",
2341
1778
# Emit D-Bus signal
2342
1779
client.Rejected("Disabled")
2343
1780
return
2344
1781
2345
1782
if client.approved or not client.approval_delay:
2346
# We are approved or approval is disabled
1783
#We are approved or approval is disabled
2347
1784
break
2348
1785
elif client.approved is None:
2349
1786
logger.info("Client %s needs approval",
2360
1797
# Emit D-Bus signal
2361
1798
client.Rejected("Denied")
2362
1799
return
2363
2364
# wait until timeout or approved
1800
1801
#wait until timeout or approved
2365
1802
time = datetime.datetime.now()
2366
1803
client.changedstate.acquire()
2367
1804
client.changedstate.wait(delay.total_seconds())
2380
1817
break
2381
1818
else:
2382
1819
delay -= time2 - time
2383
2384
try:
2385
session.send(client.secret)
2386
except gnutls.Error as error:
2387
logger.warning("gnutls send failed",
2388
exc_info=error)
2389
return
2390
1820
1821
sent_size = 0
1822
while sent_size < len(client.secret):
1823
try:
1824
sent = session.send(client.secret[sent_size:])
1825
except gnutls.errors.GNUTLSError as error:
1826
logger.warning("gnutls send failed",
1827
exc_info=error)
1828
return
1829
logger.debug("Sent: %d, remaining: %d", sent,
1830
len(client.secret) - (sent_size
1831
+ sent))
1832
sent_size += sent
1833
2391
1834
logger.info("Sending secret to %s", client.name)
2392
1835
# bump the timeout using extended_timeout
2393
1836
client.bump_timeout(client.extended_timeout)
2394
1837
if self.server.use_dbus:
2395
1838
# Emit D-Bus signal
2396
1839
client.GotSecret()
2397
1840
2398
1841
finally:
2399
1842
if approval_required:
2400
1843
client.approvals_pending -= 1
2401
1844
try:
2402
1845
session.bye()
2403
except gnutls.Error as error:
1846
except gnutls.errors.GNUTLSError as error:
2404
1847
logger.warning("GnuTLS bye failed",
2405
1848
exc_info=error)
2406
1849
2407
1850
@staticmethod
2408
1851
def peer_certificate(session):
2409
"Return the peer's certificate as a bytestring"
2410
try:
2411
cert_type = gnutls.certificate_type_get2(session._c_object,
2412
gnutls.CTYPE_PEERS)
2413
except AttributeError:
2414
cert_type = gnutls.certificate_type_get(session._c_object)
2415
if gnutls.has_rawpk:
2416
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2417
else:
2418
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2419
# If not a valid certificate type...
2420
if cert_type not in valid_cert_types:
2421
logger.info("Cert type %r not in %r", cert_type,
2422
valid_cert_types)
2423
# ...return invalid data
2424
return b""
1852
"Return the peer's OpenPGP certificate as a bytestring"
1853
# If not an OpenPGP certificate...
1854
if (gnutls.library.functions.gnutls_certificate_type_get(
1855
session._c_object)
1856
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1857
# ...do the normal thing
1858
return session.peer_certificate
2425
1859
list_size = ctypes.c_uint(1)
2426
cert_list = (gnutls.certificate_get_peers
1860
cert_list = (gnutls.library.functions
1861
.gnutls_certificate_get_peers
2427
1862
(session._c_object, ctypes.byref(list_size)))
2428
1863
if not bool(cert_list) and list_size.value != 0:
2429
raise gnutls.Error("error getting peer certificate")
1864
raise gnutls.errors.GNUTLSError("error getting peer"
1865
" certificate")
2430
1866
if list_size.value == 0:
2431
1867
return None
2432
1868
cert = cert_list[0]
2433
1869
return ctypes.string_at(cert.data, cert.size)
2434
2435
@staticmethod
2436
def key_id(certificate):
2437
"Convert a certificate bytestring to a hexdigit key ID"
2438
# New GnuTLS "datum" with the public key
2439
datum = gnutls.datum_t(
2440
ctypes.cast(ctypes.c_char_p(certificate),
2441
ctypes.POINTER(ctypes.c_ubyte)),
2442
ctypes.c_uint(len(certificate)))
2443
# XXX all these need to be created in the gnutls "module"
2444
# New empty GnuTLS certificate
2445
pubkey = gnutls.pubkey_t()
2446
gnutls.pubkey_init(ctypes.byref(pubkey))
2447
# Import the raw public key into the certificate
2448
gnutls.pubkey_import(pubkey,
2449
ctypes.byref(datum),
2450
gnutls.X509_FMT_DER)
2451
# New buffer for the key ID
2452
buf = ctypes.create_string_buffer(32)
2453
buf_len = ctypes.c_size_t(len(buf))
2454
# Get the key ID from the raw public key into the buffer
2455
gnutls.pubkey_get_key_id(pubkey,
2456
gnutls.KEYID_USE_SHA256,
2457
ctypes.cast(ctypes.byref(buf),
2458
ctypes.POINTER(ctypes.c_ubyte)),
2459
ctypes.byref(buf_len))
2460
# Deinit the certificate
2461
gnutls.pubkey_deinit(pubkey)
2462
2463
# Convert the buffer to a Python bytestring
2464
key_id = ctypes.string_at(buf, buf_len.value)
2465
# Convert the bytestring to hexadecimal notation
2466
hex_key_id = binascii.hexlify(key_id).upper()
2467
return hex_key_id
2468
1870
2469
1871
@staticmethod
2470
1872
def fingerprint(openpgp):
2471
1873
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2472
1874
# New GnuTLS "datum" with the OpenPGP public key
2473
datum = gnutls.datum_t(
1875
datum = gnutls.library.types.gnutls_datum_t(
2474
1876
ctypes.cast(ctypes.c_char_p(openpgp),
2475
1877
ctypes.POINTER(ctypes.c_ubyte)),
2476
1878
ctypes.c_uint(len(openpgp)))
2477
1879
# New empty GnuTLS certificate
2478
crt = gnutls.openpgp_crt_t()
2479
gnutls.openpgp_crt_init(ctypes.byref(crt))
1880
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1881
gnutls.library.functions.gnutls_openpgp_crt_init(
1882
ctypes.byref(crt))
2480
1883
# Import the OpenPGP public key into the certificate
2481
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2482
gnutls.OPENPGP_FMT_RAW)
1884
gnutls.library.functions.gnutls_openpgp_crt_import(
1885
crt, ctypes.byref(datum),
1886
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
2483
1887
# Verify the self signature in the key
2484
1888
crtverify = ctypes.c_uint()
2485
gnutls.openpgp_crt_verify_self(crt, 0,
2486
ctypes.byref(crtverify))
1889
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1890
crt, 0, ctypes.byref(crtverify))
2487
1891
if crtverify.value != 0:
2488
gnutls.openpgp_crt_deinit(crt)
2489
raise gnutls.CertificateSecurityError(code
2490
=crtverify.value)
1892
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1893
raise gnutls.errors.CertificateSecurityError(
1894
"Verify failed")
2491
1895
# New buffer for the fingerprint
2492
1896
buf = ctypes.create_string_buffer(20)
2493
1897
buf_len = ctypes.c_size_t()
2494
1898
# Get the fingerprint from the certificate into the buffer
2495
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2496
ctypes.byref(buf_len))
1899
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1900
crt, ctypes.byref(buf), ctypes.byref(buf_len))
2497
1901
# Deinit the certificate
2498
gnutls.openpgp_crt_deinit(crt)
1902
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2499
1903
# Convert the buffer to a Python bytestring
2500
1904
fpr = ctypes.string_at(buf, buf_len.value)
2501
1905
# Convert the bytestring to hexadecimal notation
2503
1907
return hex_fpr
2504
1908
2505
1909
2506
class MultiprocessingMixIn:
1910
class MultiprocessingMixIn(object):
2507
1911
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2508
1912
2509
1913
def sub_process_main(self, request, address):
2510
1914
try:
2511
1915
self.finish_request(request, address)
2512
1916
except Exception:
2513
1917
self.handle_error(request, address)
2514
1918
self.close_request(request)
2515
1919
2516
1920
def process_request(self, request, address):
2517
1921
"""Start a new process to process the request."""
2518
proc = multiprocessing.Process(target=self.sub_process_main,
2519
args=(request, address))
1922
proc = multiprocessing.Process(target = self.sub_process_main,
1923
args = (request, address))
2520
1924
proc.start()
2521
1925
return proc
2522
1926
2523
1927
2524
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1928
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2525
1929
""" adds a pipe to the MixIn """
2526
1930
2527
1931
def process_request(self, request, client_address):
2528
1932
"""Overrides and wraps the original process_request().
2529
1933
2530
1934
This function creates a new pipe in self.pipe
2531
1935
"""
2532
1936
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2533
1937
2534
1938
proc = MultiprocessingMixIn.process_request(self, request,
2535
1939
client_address)
2536
1940
self.child_pipe.close()
2537
1941
self.add_pipe(parent_pipe, proc)
2538
1942
2539
1943
def add_pipe(self, parent_pipe, proc):
2540
1944
"""Dummy function; override as necessary"""
2541
1945
raise NotImplementedError()
2542
1946
2543
1947
2544
1948
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2545
socketserver.TCPServer):
1949
socketserver.TCPServer, object):
2546
1950
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2547
1951
2548
1952
Attributes:
2549
1953
enabled: Boolean; whether this server is activated yet
2550
1954
interface: None or a network interface name (string)
2551
1955
use_ipv6: Boolean; to use IPv6 or not
2552
1956
"""
2553
1957
2554
1958
def __init__(self, server_address, RequestHandlerClass,
2555
1959
interface=None,
2556
1960
use_ipv6=True,
2566
1970
self.socketfd = socketfd
2567
1971
# Save the original socket.socket() function
2568
1972
self.socket_socket = socket.socket
2569
2570
1973
# To implement --socket, we monkey patch socket.socket.
2571
#
1974
#
2572
1975
# (When socketserver.TCPServer is a new-style class, we
2573
1976
# could make self.socket into a property instead of monkey
2574
1977
# patching socket.socket.)
2575
#
1978
#
2576
1979
# Create a one-time-only replacement for socket.socket()
2577
1980
@functools.wraps(socket.socket)
2578
1981
def socket_wrapper(*args, **kwargs):
2590
1993
# socket_wrapper(), if socketfd was set.
2591
1994
socketserver.TCPServer.__init__(self, server_address,
2592
1995
RequestHandlerClass)
2593
1996
2594
1997
def server_bind(self):
2595
1998
"""This overrides the normal server_bind() function
2596
1999
to bind to an interface if one was specified, and also NOT to
2597
2000
bind to an address or port if they were not specified."""
2598
global SO_BINDTODEVICE
2599
2001
if self.interface is not None:
2600
2002
if SO_BINDTODEVICE is None:
2601
# Fall back to a hard-coded value which seems to be
2602
# common enough.
2603
logger.warning("SO_BINDTODEVICE not found, trying 25")
2604
SO_BINDTODEVICE = 25
2605
try:
2606
self.socket.setsockopt(
2607
socket.SOL_SOCKET, SO_BINDTODEVICE,
2608
(self.interface + "\0").encode("utf-8"))
2609
except socket.error as error:
2610
if error.errno == errno.EPERM:
2611
logger.error("No permission to bind to"
2612
" interface %s", self.interface)
2613
elif error.errno == errno.ENOPROTOOPT:
2614
logger.error("SO_BINDTODEVICE not available;"
2615
" cannot bind to interface %s",
2616
self.interface)
2617
elif error.errno == errno.ENODEV:
2618
logger.error("Interface %s does not exist,"
2619
" cannot bind", self.interface)
2620
else:
2621
raise
2003
logger.error("SO_BINDTODEVICE does not exist;"
2004
" cannot bind to interface %s",
2005
self.interface)
2006
else:
2007
try:
2008
self.socket.setsockopt(
2009
socket.SOL_SOCKET, SO_BINDTODEVICE,
2010
(self.interface + "\0").encode("utf-8"))
2011
except socket.error as error:
2012
if error.errno == errno.EPERM:
2013
logger.error("No permission to bind to"
2014
" interface %s", self.interface)
2015
elif error.errno == errno.ENOPROTOOPT:
2016
logger.error("SO_BINDTODEVICE not available;"
2017
" cannot bind to interface %s",
2018
self.interface)
2019
elif error.errno == errno.ENODEV:
2020
logger.error("Interface %s does not exist,"
2021
" cannot bind", self.interface)
2022
else:
2023
raise
2622
2024
# Only bind(2) the socket if we really need to.
2623
2025
if self.server_address[0] or self.server_address[1]:
2624
if self.server_address[1]:
2625
self.allow_reuse_address = True
2626
2026
if not self.server_address[0]:
2627
2027
if self.address_family == socket.AF_INET6:
2628
any_address = "::" # in6addr_any
2028
any_address = "::" # in6addr_any
2629
2029
else:
2630
any_address = "0.0.0.0" # INADDR_ANY
2030
any_address = "0.0.0.0" # INADDR_ANY
2631
2031
self.server_address = (any_address,
2632
2032
self.server_address[1])
2633
2033
elif not self.server_address[1]:
2643
2043
2644
2044
class MandosServer(IPv6_TCPServer):
2645
2045
"""Mandos server.
2646
2046
2647
2047
Attributes:
2648
2048
clients: set of Client objects
2649
2049
gnutls_priority GnuTLS priority string
2650
2050
use_dbus: Boolean; to emit D-Bus signals or not
2651
2652
Assumes a GLib.MainLoop event loop.
2051
2052
Assumes a gobject.MainLoop event loop.
2653
2053
"""
2654
2054
2655
2055
def __init__(self, server_address, RequestHandlerClass,
2656
2056
interface=None,
2657
2057
use_ipv6=True,
2667
2067
self.gnutls_priority = gnutls_priority
2668
2068
IPv6_TCPServer.__init__(self, server_address,
2669
2069
RequestHandlerClass,
2670
interface=interface,
2671
use_ipv6=use_ipv6,
2672
socketfd=socketfd)
2673
2070
interface = interface,
2071
use_ipv6 = use_ipv6,
2072
socketfd = socketfd)
2073
2674
2074
def server_activate(self):
2675
2075
if self.enabled:
2676
2076
return socketserver.TCPServer.server_activate(self)
2677
2077
2678
2078
def enable(self):
2679
2079
self.enabled = True
2680
2080
2681
2081
def add_pipe(self, parent_pipe, proc):
2682
2082
# Call "handle_ipc" for both data and EOF events
2683
GLib.io_add_watch(
2684
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2685
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2083
gobject.io_add_watch(
2084
parent_pipe.fileno(),
2085
gobject.IO_IN | gobject.IO_HUP,
2686
2086
functools.partial(self.handle_ipc,
2687
parent_pipe=parent_pipe,
2688
proc=proc))
2689
2087
parent_pipe = parent_pipe,
2088
proc = proc))
2089
2690
2090
def handle_ipc(self, source, condition,
2691
2091
parent_pipe=None,
2692
proc=None,
2092
proc = None,
2693
2093
client_object=None):
2694
2094
# error, or the other end of multiprocessing.Pipe has closed
2695
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2095
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2696
2096
# Wait for other process to exit
2697
2097
proc.join()
2698
2098
return False
2699
2099
2700
2100
# Read a request from the child
2701
2101
request = parent_pipe.recv()
2702
2102
command = request[0]
2703
2103
2704
2104
if command == 'init':
2705
key_id = request[1].decode("ascii")
2706
fpr = request[2].decode("ascii")
2707
address = request[3]
2708
2709
for c in self.clients.values():
2710
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2711
continue
2712
if key_id and c.key_id == key_id:
2713
client = c
2714
break
2715
if fpr and c.fingerprint == fpr:
2105
fpr = request[1]
2106
address = request[2]
2107
2108
for c in self.clients.itervalues():
2109
if c.fingerprint == fpr:
2716
2110
client = c
2717
2111
break
2718
2112
else:
2719
logger.info("Client not found for key ID: %s, address"
2720
": %s", key_id or fpr, address)
2113
logger.info("Client not found for fingerprint: %s, ad"
2114
"dress: %s", fpr, address)
2721
2115
if self.use_dbus:
2722
2116
# Emit D-Bus signal
2723
mandos_dbus_service.ClientNotFound(key_id or fpr,
2117
mandos_dbus_service.ClientNotFound(fpr,
2724
2118
address[0])
2725
2119
parent_pipe.send(False)
2726
2120
return False
2727
2728
GLib.io_add_watch(
2729
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2730
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2121
2122
gobject.io_add_watch(
2123
parent_pipe.fileno(),
2124
gobject.IO_IN | gobject.IO_HUP,
2731
2125
functools.partial(self.handle_ipc,
2732
parent_pipe=parent_pipe,
2733
proc=proc,
2734
client_object=client))
2126
parent_pipe = parent_pipe,
2127
proc = proc,
2128
client_object = client))
2735
2129
parent_pipe.send(True)
2736
2130
# remove the old hook in favor of the new above hook on
2737
2131
# same fileno
2740
2134
funcname = request[1]
2741
2135
args = request[2]
2742
2136
kwargs = request[3]
2743
2137
2744
2138
parent_pipe.send(('data', getattr(client_object,
2745
2139
funcname)(*args,
2746
2140
**kwargs)))
2747
2141
2748
2142
if command == 'getattr':
2749
2143
attrname = request[1]
2750
2144
if isinstance(client_object.__getattribute__(attrname),
2753
2147
else:
2754
2148
parent_pipe.send((
2755
2149
'data', client_object.__getattribute__(attrname)))
2756
2150
2757
2151
if command == 'setattr':
2758
2152
attrname = request[1]
2759
2153
value = request[2]
2760
2154
setattr(client_object, attrname, value)
2761
2155
2762
2156
return True
2763
2157
2764
2158
2765
2159
def rfc3339_duration_to_delta(duration):
2766
2160
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2767
2161
2768
2162
>>> rfc3339_duration_to_delta("P7D")
2769
2163
datetime.timedelta(7)
2770
2164
>>> rfc3339_duration_to_delta("PT60S")
2780
2174
>>> rfc3339_duration_to_delta("P1DT3M20S")
2781
2175
datetime.timedelta(1, 200)
2782
2176
"""
2783
2177
2784
2178
# Parsing an RFC 3339 duration with regular expressions is not
2785
2179
# possible - there would have to be multiple places for the same
2786
2180
# values, like seconds. The current code, while more esoteric, is
2787
2181
# cleaner without depending on a parsing library. If Python had a
2788
2182
# built-in library for parsing we would use it, but we'd like to
2789
2183
# avoid excessive use of external libraries.
2790
2184
2791
2185
# New type for defining tokens, syntax, and semantics all-in-one
2792
2186
Token = collections.namedtuple("Token", (
2793
2187
"regexp", # To match token; if "value" is not None, must have
2826
2220
frozenset((token_year, token_month,
2827
2221
token_day, token_time,
2828
2222
token_week)))
2829
# Define starting values:
2830
# Value so far
2831
value = datetime.timedelta()
2223
# Define starting values
2224
value = datetime.timedelta() # Value so far
2832
2225
found_token = None
2833
# Following valid tokens
2834
followers = frozenset((token_duration, ))
2835
# String left to parse
2836
s = duration
2226
followers = frozenset((token_duration, )) # Following valid tokens
2227
s = duration # String left to parse
2837
2228
# Loop until end token is found
2838
2229
while found_token is not token_end:
2839
2230
# Search for any currently valid tokens
2863
2254
2864
2255
def string_to_delta(interval):
2865
2256
"""Parse a string and return a datetime.timedelta
2866
2257
2867
2258
>>> string_to_delta('7d')
2868
2259
datetime.timedelta(7)
2869
2260
>>> string_to_delta('60s')
2877
2268
>>> string_to_delta('5m 30s')
2878
2269
datetime.timedelta(0, 330)
2879
2270
"""
2880
2271
2881
2272
try:
2882
2273
return rfc3339_duration_to_delta(interval)
2883
2274
except ValueError:
2884
2275
pass
2885
2276
2886
2277
timevalue = datetime.timedelta(0)
2887
2278
for s in interval.split():
2888
2279
try:
2906
2297
return timevalue
2907
2298
2908
2299
2909
def daemon(nochdir=False, noclose=False):
2300
def daemon(nochdir = False, noclose = False):
2910
2301
"""See daemon(3). Standard BSD Unix function.
2911
2302
2912
2303
This should really exist as os.daemon, but it doesn't (yet)."""
2913
2304
if os.fork():
2914
2305
sys.exit()
2932
2323
2933
2324
2934
2325
def main():
2935
2326
2936
2327
##################################################################
2937
2328
# Parsing of options, both command line and config file
2938
2329
2939
2330
parser = argparse.ArgumentParser()
2940
2331
parser.add_argument("-v", "--version", action="version",
2941
version="%(prog)s {}".format(version),
2332
version = "%(prog)s {}".format(version),
2942
2333
help="show version number and exit")
2943
2334
parser.add_argument("-i", "--interface", metavar="IF",
2944
2335
help="Bind to interface IF")
2980
2371
parser.add_argument("--no-zeroconf", action="store_false",
2981
2372
dest="zeroconf", help="Do not use Zeroconf",
2982
2373
default=None)
2983
2374
2984
2375
options = parser.parse_args()
2985
2376
2377
if options.check:
2378
import doctest
2379
fail_count, test_count = doctest.testmod()
2380
sys.exit(os.EX_OK if fail_count == 0 else 1)
2381
2986
2382
# Default values for config file for server-global settings
2987
if gnutls.has_rawpk:
2988
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2989
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2990
else:
2991
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2992
":+SIGN-DSA-SHA256")
2993
server_defaults = {"interface": "",
2994
"address": "",
2995
"port": "",
2996
"debug": "False",
2997
"priority": priority,
2998
"servicename": "Mandos",
2999
"use_dbus": "True",
3000
"use_ipv6": "True",
3001
"debuglevel": "",
3002
"restore": "True",
3003
"socket": "",
3004
"statedir": "/var/lib/mandos",
3005
"foreground": "False",
3006
"zeroconf": "True",
3007
}
3008
del priority
3009
2383
server_defaults = { "interface": "",
2384
"address": "",
2385
"port": "",
2386
"debug": "False",
2387
"priority":
2388
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2389
":+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2390
"servicename": "Mandos",
2391
"use_dbus": "True",
2392
"use_ipv6": "True",
2393
"debuglevel": "",
2394
"restore": "True",
2395
"socket": "",
2396
"statedir": "/var/lib/mandos",
2397
"foreground": "False",
2398
"zeroconf": "True",
2399
}
2400
3010
2401
# Parse config file for server-global settings
3011
server_config = configparser.ConfigParser(server_defaults)
2402
server_config = configparser.SafeConfigParser(server_defaults)
3012
2403
del server_defaults
3013
2404
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3014
# Convert the ConfigParser object to a dict
2405
# Convert the SafeConfigParser object to a dict
3015
2406
server_settings = server_config.defaults()
3016
2407
# Use the appropriate methods on the non-string config options
3017
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3018
"foreground", "zeroconf"):
2408
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3019
2409
server_settings[option] = server_config.getboolean("DEFAULT",
3020
2410
option)
3021
2411
if server_settings["port"]:
3031
2421
server_settings["socket"] = os.dup(server_settings
3032
2422
["socket"])
3033
2423
del server_config
3034
2424
3035
2425
# Override the settings from the config file with command line
3036
2426
# options, if set.
3037
2427
for option in ("interface", "address", "port", "debug",
3055
2445
if server_settings["debug"]:
3056
2446
server_settings["foreground"] = True
3057
2447
# Now we have our good server settings in "server_settings"
3058
2448
3059
2449
##################################################################
3060
2450
3061
2451
if (not server_settings["zeroconf"]
3062
2452
and not (server_settings["port"]
3063
2453
or server_settings["socket"] != "")):
3064
2454
parser.error("Needs port or socket to work without Zeroconf")
3065
2455
3066
2456
# For convenience
3067
2457
debug = server_settings["debug"]
3068
2458
debuglevel = server_settings["debuglevel"]
3072
2462
stored_state_file)
3073
2463
foreground = server_settings["foreground"]
3074
2464
zeroconf = server_settings["zeroconf"]
3075
2465
3076
2466
if debug:
3077
2467
initlogger(debug, logging.DEBUG)
3078
2468
else:
3081
2471
else:
3082
2472
level = getattr(logging, debuglevel.upper())
3083
2473
initlogger(debug, level)
3084
2474
3085
2475
if server_settings["servicename"] != "Mandos":
3086
2476
syslogger.setFormatter(
3087
2477
logging.Formatter('Mandos ({}) [%(process)d]:'
3088
2478
' %(levelname)s: %(message)s'.format(
3089
2479
server_settings["servicename"])))
3090
2480
3091
2481
# Parse config file with clients
3092
client_config = configparser.ConfigParser(Client.client_defaults)
2482
client_config = configparser.SafeConfigParser(Client
2483
.client_defaults)
3093
2484
client_config.read(os.path.join(server_settings["configdir"],
3094
2485
"clients.conf"))
3095
2486
3096
2487
global mandos_dbus_service
3097
2488
mandos_dbus_service = None
3098
2489
3099
2490
socketfd = None
3100
2491
if server_settings["socket"] != "":
3101
2492
socketfd = server_settings["socket"]
3117
2508
except IOError as e:
3118
2509
logger.error("Could not open file %r", pidfilename,
3119
2510
exc_info=e)
3120
3121
for name, group in (("_mandos", "_mandos"),
3122
("mandos", "mandos"),
3123
("nobody", "nogroup")):
2511
2512
for name in ("_mandos", "mandos", "nobody"):
3124
2513
try:
3125
2514
uid = pwd.getpwnam(name).pw_uid
3126
gid = pwd.getpwnam(group).pw_gid
2515
gid = pwd.getpwnam(name).pw_gid
3127
2516
break
3128
2517
except KeyError:
3129
2518
continue
3133
2522
try:
3134
2523
os.setgid(gid)
3135
2524
os.setuid(uid)
3136
if debug:
3137
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3138
gid))
3139
2525
except OSError as error:
3140
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3141
.format(uid, gid, os.strerror(error.errno)))
3142
2526
if error.errno != errno.EPERM:
3143
2527
raise
3144
2528
3145
2529
if debug:
3146
2530
# Enable all possible GnuTLS debugging
3147
2531
3148
2532
# "Use a log level over 10 to enable all debugging options."
3149
2533
# - GnuTLS manual
3150
gnutls.global_set_log_level(11)
3151
3152
@gnutls.log_func
2534
gnutls.library.functions.gnutls_global_set_log_level(11)
2535
2536
@gnutls.library.types.gnutls_log_func
3153
2537
def debug_gnutls(level, string):
3154
2538
logger.debug("GnuTLS: %s", string[:-1])
3155
3156
gnutls.global_set_log_function(debug_gnutls)
3157
2539
2540
gnutls.library.functions.gnutls_global_set_log_function(
2541
debug_gnutls)
2542
3158
2543
# Redirect stdin so all checkers get /dev/null
3159
2544
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
3160
2545
os.dup2(null, sys.stdin.fileno())
3161
2546
if null > 2:
3162
2547
os.close(null)
3163
2548
3164
2549
# Need to fork before connecting to D-Bus
3165
2550
if not foreground:
3166
2551
# Close all input and output, do double fork, etc.
3167
2552
daemon()
3168
3169
if gi.version_info < (3, 10, 2):
3170
# multiprocessing will use threads, so before we use GLib we
3171
# need to inform GLib that threads will be used.
3172
GLib.threads_init()
3173
2553
2554
# multiprocessing will use threads, so before we use gobject we
2555
# need to inform gobject that threads will be used.
2556
gobject.threads_init()
2557
3174
2558
global main_loop
3175
2559
# From the Avahi example code
3176
2560
DBusGMainLoop(set_as_default=True)
3177
main_loop = GLib.MainLoop()
2561
main_loop = gobject.MainLoop()
3178
2562
bus = dbus.SystemBus()
3179
2563
# End of Avahi example code
3180
2564
if use_dbus:
3193
2577
if zeroconf:
3194
2578
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3195
2579
service = AvahiServiceToSyslog(
3196
name=server_settings["servicename"],
3197
servicetype="_mandos._tcp",
3198
protocol=protocol,
3199
bus=bus)
2580
name = server_settings["servicename"],
2581
servicetype = "_mandos._tcp",
2582
protocol = protocol,
2583
bus = bus)
3200
2584
if server_settings["interface"]:
3201
2585
service.interface = if_nametoindex(
3202
2586
server_settings["interface"].encode("utf-8"))
3203
2587
3204
2588
global multiprocessing_manager
3205
2589
multiprocessing_manager = multiprocessing.Manager()
3206
2590
3207
2591
client_class = Client
3208
2592
if use_dbus:
3209
client_class = functools.partial(ClientDBus, bus=bus)
3210
2593
client_class = functools.partial(ClientDBus, bus = bus)
2594
3211
2595
client_settings = Client.config_parser(client_config)
3212
2596
old_client_settings = {}
3213
2597
clients_data = {}
3214
2598
3215
2599
# This is used to redirect stdout and stderr for checker processes
3216
2600
global wnull
3217
wnull = open(os.devnull, "w") # A writable /dev/null
2601
wnull = open(os.devnull, "w") # A writable /dev/null
3218
2602
# Only used if server is running in foreground but not in debug
3219
2603
# mode
3220
2604
if debug or not foreground:
3221
2605
wnull.close()
3222
2606
3223
2607
# Get client data and settings from last running state.
3224
2608
if server_settings["restore"]:
3225
2609
try:
3226
2610
with open(stored_state_path, "rb") as stored_state:
3227
if sys.version_info.major == 2:
3228
clients_data, old_client_settings = pickle.load(
3229
stored_state)
3230
else:
3231
bytes_clients_data, bytes_old_client_settings = (
3232
pickle.load(stored_state, encoding="bytes"))
3233
# Fix bytes to strings
3234
# clients_data
3235
# .keys()
3236
clients_data = {(key.decode("utf-8")
3237
if isinstance(key, bytes)
3238
else key): value
3239
for key, value in
3240
bytes_clients_data.items()}
3241
del bytes_clients_data
3242
for key in clients_data:
3243
value = {(k.decode("utf-8")
3244
if isinstance(k, bytes) else k): v
3245
for k, v in
3246
clients_data[key].items()}
3247
clients_data[key] = value
3248
# .client_structure
3249
value["client_structure"] = [
3250
(s.decode("utf-8")
3251
if isinstance(s, bytes)
3252
else s) for s in
3253
value["client_structure"]]
3254
# .name & .host
3255
for k in ("name", "host"):
3256
if isinstance(value[k], bytes):
3257
value[k] = value[k].decode("utf-8")
3258
if "key_id" not in value:
3259
value["key_id"] = ""
3260
elif "fingerprint" not in value:
3261
value["fingerprint"] = ""
3262
# old_client_settings
3263
# .keys()
3264
old_client_settings = {
3265
(key.decode("utf-8")
3266
if isinstance(key, bytes)
3267
else key): value
3268
for key, value in
3269
bytes_old_client_settings.items()}
3270
del bytes_old_client_settings
3271
# .host
3272
for value in old_client_settings.values():
3273
if isinstance(value["host"], bytes):
3274
value["host"] = (value["host"]
3275
.decode("utf-8"))
2611
clients_data, old_client_settings = pickle.load(
2612
stored_state)
3276
2613
os.remove(stored_state_path)
3277
2614
except IOError as e:
3278
2615
if e.errno == errno.ENOENT:
3286
2623
logger.warning("Could not load persistent state: "
3287
2624
"EOFError:",
3288
2625
exc_info=e)
3289
2626
3290
2627
with PGPEngine() as pgp:
3291
2628
for client_name, client in clients_data.items():
3292
2629
# Skip removed clients
3293
2630
if client_name not in client_settings:
3294
2631
continue
3295
2632
3296
2633
# Decide which value to use after restoring saved state.
3297
2634
# We have three different values: Old config file,
3298
2635
# new config file, and saved state.
3309
2646
client[name] = value
3310
2647
except KeyError:
3311
2648
pass
3312
2649
3313
2650
# Clients who has passed its expire date can still be
3314
2651
# enabled if its last checker was successful. A Client
3315
2652
# whose checker succeeded before we stored its state is
3348
2685
client_name))
3349
2686
client["secret"] = (client_settings[client_name]
3350
2687
["secret"])
3351
2688
3352
2689
# Add/remove clients based on new changes made to config
3353
2690
for client_name in (set(old_client_settings)
3354
2691
- set(client_settings)):
3356
2693
for client_name in (set(client_settings)
3357
2694
- set(old_client_settings)):
3358
2695
clients_data[client_name] = client_settings[client_name]
3359
2696
3360
2697
# Create all client objects
3361
2698
for client_name, client in clients_data.items():
3362
2699
tcp_server.clients[client_name] = client_class(
3363
name=client_name,
3364
settings=client,
3365
server_settings=server_settings)
3366
2700
name = client_name,
2701
settings = client,
2702
server_settings = server_settings)
2703
3367
2704
if not tcp_server.clients:
3368
2705
logger.warning("No clients defined")
3369
2706
3370
2707
if not foreground:
3371
2708
if pidfile is not None:
3372
2709
pid = os.getpid()
3378
2715
pidfilename, pid)
3379
2716
del pidfile
3380
2717
del pidfilename
3381
3382
for termsig in (signal.SIGHUP, signal.SIGTERM):
3383
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3384
lambda: main_loop.quit() and False)
3385
2718
2719
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2720
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2721
3386
2722
if use_dbus:
3387
2723
3388
2724
@alternate_dbus_interfaces(
3389
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3390
class MandosDBusService(DBusObjectWithObjectManager):
2725
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2726
class MandosDBusService(DBusObjectWithProperties):
3391
2727
"""A D-Bus proxy object"""
3392
2728
3393
2729
def __init__(self):
3394
2730
dbus.service.Object.__init__(self, bus, "/")
3395
2731
3396
2732
_interface = "se.recompile.Mandos"
3397
2733
2734
@dbus_interface_annotations(_interface)
2735
def _foo(self):
2736
return {
2737
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2738
"false" }
2739
3398
2740
@dbus.service.signal(_interface, signature="o")
3399
2741
def ClientAdded(self, objpath):
3400
2742
"D-Bus signal"
3401
2743
pass
3402
2744
3403
2745
@dbus.service.signal(_interface, signature="ss")
3404
def ClientNotFound(self, key_id, address):
2746
def ClientNotFound(self, fingerprint, address):
3405
2747
"D-Bus signal"
3406
2748
pass
3407
3408
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3409
"true"})
2749
3410
2750
@dbus.service.signal(_interface, signature="os")
3411
2751
def ClientRemoved(self, objpath, name):
3412
2752
"D-Bus signal"
3413
2753
pass
3414
3415
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3416
"true"})
2754
3417
2755
@dbus.service.method(_interface, out_signature="ao")
3418
2756
def GetAllClients(self):
3419
2757
"D-Bus method"
3420
2758
return dbus.Array(c.dbus_object_path for c in
3421
tcp_server.clients.values())
3422
3423
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3424
"true"})
2759
tcp_server.clients.itervalues())
2760
3425
2761
@dbus.service.method(_interface,
3426
2762
out_signature="a{oa{sv}}")
3427
2763
def GetAllClientsWithProperties(self):
3428
2764
"D-Bus method"
3429
2765
return dbus.Dictionary(
3430
{c.dbus_object_path: c.GetAll(
3431
"se.recompile.Mandos.Client")
3432
for c in tcp_server.clients.values()},
2766
{ c.dbus_object_path: c.GetAll("")
2767
for c in tcp_server.clients.itervalues() },
3433
2768
signature="oa{sv}")
3434
2769
3435
2770
@dbus.service.method(_interface, in_signature="o")
3436
2771
def RemoveClient(self, object_path):
3437
2772
"D-Bus method"
3438
for c in tcp_server.clients.values():
2773
for c in tcp_server.clients.itervalues():
3439
2774
if c.dbus_object_path == object_path:
3440
2775
del tcp_server.clients[c.name]
3441
2776
c.remove_from_connection()
3442
# Don't signal the disabling
2777
# Don't signal anything except ClientRemoved
3443
2778
c.disable(quiet=True)
3444
# Emit D-Bus signal for removal
3445
self.client_removed_signal(c)
2779
# Emit D-Bus signal
2780
self.ClientRemoved(object_path, c.name)
3446
2781
return
3447
2782
raise KeyError(object_path)
3448
2783
3449
2784
del _interface
3450
3451
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3452
out_signature="a{oa{sa{sv}}}")
3453
def GetManagedObjects(self):
3454
"""D-Bus method"""
3455
return dbus.Dictionary(
3456
{client.dbus_object_path:
3457
dbus.Dictionary(
3458
{interface: client.GetAll(interface)
3459
for interface in
3460
client._get_all_interface_names()})
3461
for client in tcp_server.clients.values()})
3462
3463
def client_added_signal(self, client):
3464
"""Send the new standard signal and the old signal"""
3465
if use_dbus:
3466
# New standard signal
3467
self.InterfacesAdded(
3468
client.dbus_object_path,
3469
dbus.Dictionary(
3470
{interface: client.GetAll(interface)
3471
for interface in
3472
client._get_all_interface_names()}))
3473
# Old signal
3474
self.ClientAdded(client.dbus_object_path)
3475
3476
def client_removed_signal(self, client):
3477
"""Send the new standard signal and the old signal"""
3478
if use_dbus:
3479
# New standard signal
3480
self.InterfacesRemoved(
3481
client.dbus_object_path,
3482
client._get_all_interface_names())
3483
# Old signal
3484
self.ClientRemoved(client.dbus_object_path,
3485
client.name)
3486
2785
3487
2786
mandos_dbus_service = MandosDBusService()
3488
3489
# Save modules to variables to exempt the modules from being
3490
# unloaded before the function registered with atexit() is run.
3491
mp = multiprocessing
3492
wn = wnull
3493
2787
3494
2788
def cleanup():
3495
2789
"Cleanup function; run on exit"
3496
2790
if zeroconf:
3497
2791
service.cleanup()
3498
3499
mp.active_children()
3500
wn.close()
2792
2793
multiprocessing.active_children()
2794
wnull.close()
3501
2795
if not (tcp_server.clients or client_settings):
3502
2796
return
3503
2797
3504
2798
# Store client before exiting. Secrets are encrypted with key
3505
2799
# based on what config file has. If config file is
3506
2800
# removed/edited, old secret will thus be unrecovable.
3507
2801
clients = {}
3508
2802
with PGPEngine() as pgp:
3509
for client in tcp_server.clients.values():
2803
for client in tcp_server.clients.itervalues():
3510
2804
key = client_settings[client.name]["secret"]
3511
2805
client.encrypted_secret = pgp.encrypt(client.secret,
3512
2806
key)
3513
2807
client_dict = {}
3514
2808
3515
2809
# A list of attributes that can not be pickled
3516
2810
# + secret.
3517
exclude = {"bus", "changedstate", "secret",
3518
"checker", "server_settings"}
2811
exclude = { "bus", "changedstate", "secret",
2812
"checker", "server_settings" }
3519
2813
for name, typ in inspect.getmembers(dbus.service
3520
2814
.Object):
3521
2815
exclude.add(name)
3522
2816
3523
2817
client_dict["encrypted_secret"] = (client
3524
2818
.encrypted_secret)
3525
2819
for attr in client.client_structure:
3526
2820
if attr not in exclude:
3527
2821
client_dict[attr] = getattr(client, attr)
3528
2822
3529
2823
clients[client.name] = client_dict
3530
2824
del client_settings[client.name]["secret"]
3531
2825
3532
2826
try:
3533
2827
with tempfile.NamedTemporaryFile(
3534
2828
mode='wb',
3536
2830
prefix='clients-',
3537
2831
dir=os.path.dirname(stored_state_path),
3538
2832
delete=False) as stored_state:
3539
pickle.dump((clients, client_settings), stored_state,
3540
protocol=2)
2833
pickle.dump((clients, client_settings), stored_state)
3541
2834
tempname = stored_state.name
3542
2835
os.rename(tempname, stored_state_path)
3543
2836
except (IOError, OSError) as e:
3553
2846
logger.warning("Could not save persistent state:",
3554
2847
exc_info=e)
3555
2848
raise
3556
2849
3557
2850
# Delete all clients, and settings from config
3558
2851
while tcp_server.clients:
3559
2852
name, client = tcp_server.clients.popitem()
3560
2853
if use_dbus:
3561
2854
client.remove_from_connection()
3562
# Don't signal the disabling
2855
# Don't signal anything except ClientRemoved
3563
2856
client.disable(quiet=True)
3564
# Emit D-Bus signal for removal
3565
2857
if use_dbus:
3566
mandos_dbus_service.client_removed_signal(client)
2858
# Emit D-Bus signal
2859
mandos_dbus_service.ClientRemoved(
2860
client.dbus_object_path, client.name)
3567
2861
client_settings.clear()
3568
2862
3569
2863
atexit.register(cleanup)
3570
3571
for client in tcp_server.clients.values():
2864
2865
for client in tcp_server.clients.itervalues():
3572
2866
if use_dbus:
3573
# Emit D-Bus signal for adding
3574
mandos_dbus_service.client_added_signal(client)
2867
# Emit D-Bus signal
2868
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3575
2869
# Need to initiate checking of clients
3576
2870
if client.enabled:
3577
2871
client.init_checker()
3578
2872
3579
2873
tcp_server.enable()
3580
2874
tcp_server.server_activate()
3581
2875
3582
2876
# Find out what port we got
3583
2877
if zeroconf:
3584
2878
service.port = tcp_server.socket.getsockname()[1]
3589
2883
else: # IPv4
3590
2884
logger.info("Now listening on address %r, port %d",
3591
2885
*tcp_server.socket.getsockname())
3592
3593
# service.interface = tcp_server.socket.getsockname()[3]
3594
2886
2887
#service.interface = tcp_server.socket.getsockname()[3]
2888
3595
2889
try:
3596
2890
if zeroconf:
3597
2891
# From the Avahi example code
3602
2896
cleanup()
3603
2897
sys.exit(1)
3604
2898
# End of Avahi example code
3605
3606
GLib.io_add_watch(
3607
GLib.IOChannel.unix_new(tcp_server.fileno()),
3608
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3609
lambda *args, **kwargs: (tcp_server.handle_request
3610
(*args[2:], **kwargs) or True))
3611
2899
2900
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2901
lambda *args, **kwargs:
2902
(tcp_server.handle_request
2903
(*args[2:], **kwargs) or True))
2904
3612
2905
logger.debug("Starting main loop")
3613
2906
main_loop.run()
3614
2907
except AvahiError as error:
3623
2916
# Must run before the D-Bus bus name gets deregistered
3624
2917
cleanup()
3625
2918
3626
3627
def should_only_run_tests():
3628
parser = argparse.ArgumentParser(add_help=False)
3629
parser.add_argument("--check", action='store_true')
3630
args, unknown_args = parser.parse_known_args()
3631
run_tests = args.check
3632
if run_tests:
3633
# Remove --check argument from sys.argv
3634
sys.argv[1:] = unknown_args
3635
return run_tests
3636
3637
# Add all tests from doctest strings
3638
def load_tests(loader, tests, none):
3639
import doctest
3640
tests.addTests(doctest.DocTestSuite())
3641
return tests
3642
2919
3643
2920
if __name__ == '__main__':
3644
try:
3645
if should_only_run_tests():
3646
# Call using ./mandos --check [--verbose]
3647
unittest.main()
3648
else:
3649
main()
3650
finally:
3651
logging.shutdown()
2921
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0