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 237.4.132
- compare with another revision
- download diff
- download tarball
- view history from revision 237.4.132
- Committer: teddy at recompile
- Date: 2020-07-04 13:00:37 UTC
- mto: This revision was merged to the branch mainline in revision 1219.
- Revision ID: teddy@recompile.se-20200704130037-fluvf7ftqbjgfu9g
Tags: version-1.8.12-1
Version 1.8.12-1
* Makefile (version): Change to "1.8.12".
* NEWS (Version 1.8.12): Add new entry.
* debian/changelog (1.8.12-1): - '' -
* Makefile (version): Change to "1.8.12".
* NEWS (Version 1.8.12): Add new entry.
* debian/changelog (1.8.12-1): - '' -
- files added:
- bugs.xml
- debian/tests
- dracut-module
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python2.7
2
# -*- mode: python; coding: utf-8 -*-
3
#
1
#!/usr/bin/python3 -bI
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
#
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 © 2008-2015 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
14
# Copyright © 2008-2020 Teddy Hogeborn
15
# Copyright © 2008-2020 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
32
# Contact the authors at <mandos@recompile.se>.
32
#
33
#
33
34
34
35
from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
36
37
37
from future_builtins import *
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
38
42
39
43
try:
40
44
import SocketServer as socketserver
73
77
import itertools
74
78
import collections
75
79
import codecs
80
import unittest
81
import random
82
import shlex
76
83
77
84
import dbus
78
85
import dbus.service
79
try:
80
import gobject
81
except ImportError:
82
from gi.repository import GObject as gobject
83
import avahi
86
import gi
87
from gi.repository import GLib
84
88
from dbus.mainloop.glib import DBusGMainLoop
85
89
import ctypes
86
90
import ctypes.util
87
91
import xml.dom.minidom
88
92
import inspect
89
93
90
try:
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
91
122
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
92
123
except AttributeError:
93
124
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
94
127
from IN import SO_BINDTODEVICE
95
128
except ImportError:
96
SO_BINDTODEVICE = None
97
98
if sys.version_info.major == 2:
99
str = unicode
100
101
version = "1.7.1"
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.12"
102
147
stored_state_file = "clients.pickle"
103
148
104
149
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
105
151
syslogger = None
106
152
107
153
try:
108
154
if_nametoindex = ctypes.cdll.LoadLibrary(
109
155
ctypes.util.find_library("c")).if_nametoindex
110
156
except (OSError, AttributeError):
111
157
112
158
def if_nametoindex(interface):
113
159
"Get an interface index the hard way, i.e. using fcntl()"
114
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
119
165
return interface_index
120
166
121
167
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
122
184
def initlogger(debug, level=logging.WARNING):
123
185
"""init logger and add loglevel"""
124
186
125
187
global syslogger
126
188
syslogger = (logging.handlers.SysLogHandler(
127
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
128
address = "/dev/log"))
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
129
191
syslogger.setFormatter(logging.Formatter
130
192
('Mandos [%(process)d]: %(levelname)s:'
131
193
' %(message)s'))
132
194
logger.addHandler(syslogger)
133
195
134
196
if debug:
135
197
console = logging.StreamHandler()
136
198
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
146
208
pass
147
209
148
210
149
class PGPEngine(object):
211
class PGPEngine:
150
212
"""A simple class for OpenPGP symmetric encryption & decryption"""
151
213
152
214
def __init__(self):
153
215
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
154
227
self.gnupgargs = ['--batch',
155
'--home', self.tempdir,
228
'--homedir', self.tempdir,
156
229
'--force-mdc',
157
'--quiet',
158
'--no-use-agent']
159
230
'--quiet']
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
160
235
def __enter__(self):
161
236
return self
162
237
163
238
def __exit__(self, exc_type, exc_value, traceback):
164
239
self._cleanup()
165
240
return False
166
241
167
242
def __del__(self):
168
243
self._cleanup()
169
244
170
245
def _cleanup(self):
171
246
if self.tempdir is not None:
172
247
# Delete contents of tempdir
173
248
for root, dirs, files in os.walk(self.tempdir,
174
topdown = False):
249
topdown=False):
175
250
for filename in files:
176
251
os.remove(os.path.join(root, filename))
177
252
for dirname in dirs:
179
254
# Remove tempdir
180
255
os.rmdir(self.tempdir)
181
256
self.tempdir = None
182
257
183
258
def password_encode(self, password):
184
259
# Passphrase can not be empty and can not contain newlines or
185
260
# NUL bytes. So we prefix it and hex encode it.
190
265
.replace(b"\n", b"\\n")
191
266
.replace(b"\0", b"\\x00"))
192
267
return encoded
193
268
194
269
def encrypt(self, data, password):
195
270
passphrase = self.password_encode(password)
196
271
with tempfile.NamedTemporaryFile(
197
272
dir=self.tempdir) as passfile:
198
273
passfile.write(passphrase)
199
274
passfile.flush()
200
proc = subprocess.Popen(['gpg', '--symmetric',
275
proc = subprocess.Popen([self.gpg, '--symmetric',
201
276
'--passphrase-file',
202
277
passfile.name]
203
278
+ self.gnupgargs,
204
stdin = subprocess.PIPE,
205
stdout = subprocess.PIPE,
206
stderr = subprocess.PIPE)
207
ciphertext, err = proc.communicate(input = data)
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
208
283
if proc.returncode != 0:
209
284
raise PGPError(err)
210
285
return ciphertext
211
286
212
287
def decrypt(self, data, password):
213
288
passphrase = self.password_encode(password)
214
289
with tempfile.NamedTemporaryFile(
215
dir = self.tempdir) as passfile:
290
dir=self.tempdir) as passfile:
216
291
passfile.write(passphrase)
217
292
passfile.flush()
218
proc = subprocess.Popen(['gpg', '--decrypt',
293
proc = subprocess.Popen([self.gpg, '--decrypt',
219
294
'--passphrase-file',
220
295
passfile.name]
221
296
+ self.gnupgargs,
222
stdin = subprocess.PIPE,
223
stdout = subprocess.PIPE,
224
stderr = subprocess.PIPE)
225
decrypted_plaintext, err = proc.communicate(input = data)
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
226
301
if proc.returncode != 0:
227
302
raise PGPError(err)
228
303
return decrypted_plaintext
229
304
230
305
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
331
231
332
class AvahiError(Exception):
232
333
def __init__(self, value, *args, **kwargs):
233
334
self.value = value
243
344
pass
244
345
245
346
246
class AvahiService(object):
347
class AvahiService:
247
348
"""An Avahi (Zeroconf) service.
248
349
249
350
Attributes:
250
351
interface: integer; avahi.IF_UNSPEC or an interface index.
251
352
Used to optionally bind to the specified interface.
263
364
server: D-Bus Server
264
365
bus: dbus.SystemBus()
265
366
"""
266
367
267
368
def __init__(self,
268
interface = avahi.IF_UNSPEC,
269
name = None,
270
servicetype = None,
271
port = None,
272
TXT = None,
273
domain = "",
274
host = "",
275
max_renames = 32768,
276
protocol = avahi.PROTO_UNSPEC,
277
bus = None):
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
278
379
self.interface = interface
279
380
self.name = name
280
381
self.type = servicetype
289
390
self.server = None
290
391
self.bus = bus
291
392
self.entry_group_state_changed_match = None
292
393
293
394
def rename(self, remove=True):
294
395
"""Derived from the Avahi example code"""
295
396
if self.rename_count >= self.max_renames:
315
416
logger.critical("D-Bus Exception", exc_info=error)
316
417
self.cleanup()
317
418
os._exit(1)
318
419
319
420
def remove(self):
320
421
"""Derived from the Avahi example code"""
321
422
if self.entry_group_state_changed_match is not None:
323
424
self.entry_group_state_changed_match = None
324
425
if self.group is not None:
325
426
self.group.Reset()
326
427
327
428
def add(self):
328
429
"""Derived from the Avahi example code"""
329
430
self.remove()
346
447
dbus.UInt16(self.port),
347
448
avahi.string_array_to_txt_array(self.TXT))
348
449
self.group.Commit()
349
450
350
451
def entry_group_state_changed(self, state, error):
351
452
"""Derived from the Avahi example code"""
352
453
logger.debug("Avahi entry group state change: %i", state)
353
454
354
455
if state == avahi.ENTRY_GROUP_ESTABLISHED:
355
456
logger.debug("Zeroconf service established.")
356
457
elif state == avahi.ENTRY_GROUP_COLLISION:
360
461
logger.critical("Avahi: Error in group state changed %s",
361
462
str(error))
362
463
raise AvahiGroupError("State changed: {!s}".format(error))
363
464
364
465
def cleanup(self):
365
466
"""Derived from the Avahi example code"""
366
467
if self.group is not None:
371
472
pass
372
473
self.group = None
373
474
self.remove()
374
475
375
476
def server_state_changed(self, state, error=None):
376
477
"""Derived from the Avahi example code"""
377
478
logger.debug("Avahi server state change: %i", state)
406
507
logger.debug("Unknown state: %r", state)
407
508
else:
408
509
logger.debug("Unknown state: %r: %r", state, error)
409
510
410
511
def activate(self):
411
512
"""Derived from the Avahi example code"""
412
513
if self.server is None:
423
524
class AvahiServiceToSyslog(AvahiService):
424
525
def rename(self, *args, **kwargs):
425
526
"""Add the new name to the syslog messages"""
426
ret = AvahiService.rename(self, *args, **kwargs)
527
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
427
528
syslogger.setFormatter(logging.Formatter(
428
529
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
429
530
.format(self.name)))
430
531
return ret
431
532
533
432
534
# Pretend that we have a GnuTLS module
433
class GnuTLS(object):
434
"""This isn't so much a class as it is a module-like namespace.
435
It is instantiated once, and simulates having a GnuTLS module."""
436
437
_library = ctypes.cdll.LoadLibrary(
438
ctypes.util.find_library("gnutls"))
439
_need_version = "3.3.0"
440
def __init__(self):
441
# Need to use class name "GnuTLS" here, since this method is
442
# called before the assignment to the "gnutls" global variable
443
# happens.
444
if GnuTLS.check_version(self._need_version) is None:
445
raise GnuTLS.Error("Needs GnuTLS {} or later"
446
.format(self._need_version))
447
535
class gnutls:
536
"""This isn't so much a class as it is a module-like namespace."""
537
538
library = ctypes.util.find_library("gnutls")
539
if library is None:
540
library = ctypes.util.find_library("gnutls-deb0")
541
_library = ctypes.cdll.LoadLibrary(library)
542
del library
543
448
544
# Unless otherwise indicated, the constants and types below are
449
545
# all from the gnutls/gnutls.h C header file.
450
546
451
547
# Constants
452
548
E_SUCCESS = 0
549
E_INTERRUPTED = -52
550
E_AGAIN = -28
453
551
CRT_OPENPGP = 2
552
CRT_RAWPK = 3
454
553
CLIENT = 2
455
554
SHUT_RDWR = 0
456
555
CRD_CERTIFICATE = 1
457
556
E_NO_CERTIFICATE_FOUND = -49
557
X509_FMT_DER = 0
558
NO_TICKETS = 1<<10
559
ENABLE_RAWPK = 1<<18
560
CTYPE_PEERS = 3
561
KEYID_USE_SHA256 = 1 # gnutls/x509.h
458
562
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
459
563
460
564
# Types
461
565
class session_int(ctypes.Structure):
462
566
_fields_ = []
463
567
session_t = ctypes.POINTER(session_int)
568
464
569
class certificate_credentials_st(ctypes.Structure):
465
570
_fields_ = []
466
571
certificate_credentials_t = ctypes.POINTER(
467
572
certificate_credentials_st)
468
573
certificate_type_t = ctypes.c_int
574
469
575
class datum_t(ctypes.Structure):
470
576
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
471
577
('size', ctypes.c_uint)]
578
472
579
class openpgp_crt_int(ctypes.Structure):
473
580
_fields_ = []
474
581
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
475
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
582
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
476
583
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
477
credentials_type_t = ctypes.c_int #
584
credentials_type_t = ctypes.c_int
478
585
transport_ptr_t = ctypes.c_void_p
479
586
close_request_t = ctypes.c_int
480
587
481
588
# Exceptions
482
589
class Error(Exception):
483
# We need to use the class name "GnuTLS" here, since this
484
# exception might be raised from within GnuTLS.__init__,
485
# which is called before the assignment to the "gnutls"
486
# global variable happens.
487
def __init__(self, message = None, code = None, args=()):
590
def __init__(self, message=None, code=None, args=()):
488
591
# Default usage is by a message string, but if a return
489
592
# code is passed, convert it to a string with
490
593
# gnutls.strerror()
594
self.code = code
491
595
if message is None and code is not None:
492
message = GnuTLS.strerror(code)
493
return super(GnuTLS.Error, self).__init__(
596
message = gnutls.strerror(code)
597
return super(gnutls.Error, self).__init__(
494
598
message, *args)
495
599
496
600
class CertificateSecurityError(Error):
497
601
pass
498
602
499
603
# Classes
500
class Credentials(object):
604
class Credentials:
501
605
def __init__(self):
502
606
self._c_object = gnutls.certificate_credentials_t()
503
607
gnutls.certificate_allocate_credentials(
504
608
ctypes.byref(self._c_object))
505
609
self.type = gnutls.CRD_CERTIFICATE
506
610
507
611
def __del__(self):
508
612
gnutls.certificate_free_credentials(self._c_object)
509
510
class ClientSession(object):
511
def __init__(self, socket, credentials = None):
613
614
class ClientSession:
615
def __init__(self, socket, credentials=None):
512
616
self._c_object = gnutls.session_t()
513
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
617
gnutls_flags = gnutls.CLIENT
618
if gnutls.check_version(b"3.5.6"):
619
gnutls_flags |= gnutls.NO_TICKETS
620
if gnutls.has_rawpk:
621
gnutls_flags |= gnutls.ENABLE_RAWPK
622
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
623
del gnutls_flags
514
624
gnutls.set_default_priority(self._c_object)
515
625
gnutls.transport_set_ptr(self._c_object, socket.fileno())
516
626
gnutls.handshake_set_private_extensions(self._c_object,
522
632
ctypes.cast(credentials._c_object,
523
633
ctypes.c_void_p))
524
634
self.credentials = credentials
525
635
526
636
def __del__(self):
527
637
gnutls.deinit(self._c_object)
528
638
529
639
def handshake(self):
530
640
return gnutls.handshake(self._c_object)
531
641
532
642
def send(self, data):
533
643
data = bytes(data)
534
if not data:
535
return 0
536
return gnutls.record_send(self._c_object, data, len(data))
537
644
data_len = len(data)
645
while data_len > 0:
646
data_len -= gnutls.record_send(self._c_object,
647
data[-data_len:],
648
data_len)
649
538
650
def bye(self):
539
651
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
540
541
# Error handling function
652
653
# Error handling functions
542
654
def _error_code(result):
543
655
"""A function to raise exceptions on errors, suitable
544
656
for the 'restype' attribute on ctypes functions"""
545
657
if result >= 0:
546
658
return result
547
659
if result == gnutls.E_NO_CERTIFICATE_FOUND:
548
raise gnutls.CertificateSecurityError(code = result)
549
raise gnutls.Error(code = result)
550
660
raise gnutls.CertificateSecurityError(code=result)
661
raise gnutls.Error(code=result)
662
663
def _retry_on_error(result, func, arguments):
664
"""A function to retry on some errors, suitable
665
for the 'errcheck' attribute on ctypes functions"""
666
while result < 0:
667
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
668
return _error_code(result)
669
result = func(*arguments)
670
return result
671
551
672
# Unless otherwise indicated, the function declarations below are
552
673
# all from the gnutls/gnutls.h C header file.
553
674
554
675
# Functions
555
676
priority_set_direct = _library.gnutls_priority_set_direct
556
677
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
557
678
ctypes.POINTER(ctypes.c_char_p)]
558
679
priority_set_direct.restype = _error_code
559
680
560
681
init = _library.gnutls_init
561
682
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
562
683
init.restype = _error_code
563
684
564
685
set_default_priority = _library.gnutls_set_default_priority
565
686
set_default_priority.argtypes = [session_t]
566
687
set_default_priority.restype = _error_code
567
688
568
689
record_send = _library.gnutls_record_send
569
690
record_send.argtypes = [session_t, ctypes.c_void_p,
570
691
ctypes.c_size_t]
571
692
record_send.restype = ctypes.c_ssize_t
572
693
record_send.errcheck = _retry_on_error
694
573
695
certificate_allocate_credentials = (
574
696
_library.gnutls_certificate_allocate_credentials)
575
697
certificate_allocate_credentials.argtypes = [
576
698
ctypes.POINTER(certificate_credentials_t)]
577
699
certificate_allocate_credentials.restype = _error_code
578
700
579
701
certificate_free_credentials = (
580
702
_library.gnutls_certificate_free_credentials)
581
certificate_free_credentials.argtypes = [certificate_credentials_t]
703
certificate_free_credentials.argtypes = [
704
certificate_credentials_t]
582
705
certificate_free_credentials.restype = None
583
706
584
707
handshake_set_private_extensions = (
585
708
_library.gnutls_handshake_set_private_extensions)
586
709
handshake_set_private_extensions.argtypes = [session_t,
587
710
ctypes.c_int]
588
711
handshake_set_private_extensions.restype = None
589
712
590
713
credentials_set = _library.gnutls_credentials_set
591
714
credentials_set.argtypes = [session_t, credentials_type_t,
592
715
ctypes.c_void_p]
593
716
credentials_set.restype = _error_code
594
717
595
718
strerror = _library.gnutls_strerror
596
719
strerror.argtypes = [ctypes.c_int]
597
720
strerror.restype = ctypes.c_char_p
598
721
599
722
certificate_type_get = _library.gnutls_certificate_type_get
600
723
certificate_type_get.argtypes = [session_t]
601
724
certificate_type_get.restype = _error_code
602
725
603
726
certificate_get_peers = _library.gnutls_certificate_get_peers
604
727
certificate_get_peers.argtypes = [session_t,
605
728
ctypes.POINTER(ctypes.c_uint)]
606
729
certificate_get_peers.restype = ctypes.POINTER(datum_t)
607
730
608
731
global_set_log_level = _library.gnutls_global_set_log_level
609
732
global_set_log_level.argtypes = [ctypes.c_int]
610
733
global_set_log_level.restype = None
611
734
612
735
global_set_log_function = _library.gnutls_global_set_log_function
613
736
global_set_log_function.argtypes = [log_func]
614
737
global_set_log_function.restype = None
615
738
616
739
deinit = _library.gnutls_deinit
617
740
deinit.argtypes = [session_t]
618
741
deinit.restype = None
619
742
620
743
handshake = _library.gnutls_handshake
621
744
handshake.argtypes = [session_t]
622
745
handshake.restype = _error_code
623
746
handshake.errcheck = _retry_on_error
747
624
748
transport_set_ptr = _library.gnutls_transport_set_ptr
625
749
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
626
750
transport_set_ptr.restype = None
627
751
628
752
bye = _library.gnutls_bye
629
753
bye.argtypes = [session_t, close_request_t]
630
754
bye.restype = _error_code
631
755
bye.errcheck = _retry_on_error
756
632
757
check_version = _library.gnutls_check_version
633
758
check_version.argtypes = [ctypes.c_char_p]
634
759
check_version.restype = ctypes.c_char_p
635
636
# All the function declarations below are from gnutls/openpgp.h
637
638
openpgp_crt_init = _library.gnutls_openpgp_crt_init
639
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
640
openpgp_crt_init.restype = _error_code
641
642
openpgp_crt_import = _library.gnutls_openpgp_crt_import
643
openpgp_crt_import.argtypes = [openpgp_crt_t,
644
ctypes.POINTER(datum_t),
645
openpgp_crt_fmt_t]
646
openpgp_crt_import.restype = _error_code
647
648
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
649
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
650
ctypes.POINTER(ctypes.c_uint)]
651
openpgp_crt_verify_self.restype = _error_code
652
653
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
654
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
655
openpgp_crt_deinit.restype = None
656
657
openpgp_crt_get_fingerprint = (
658
_library.gnutls_openpgp_crt_get_fingerprint)
659
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
660
ctypes.c_void_p,
661
ctypes.POINTER(
662
ctypes.c_size_t)]
663
openpgp_crt_get_fingerprint.restype = _error_code
664
665
# Remove non-public function
666
del _error_code
667
# Create the global "gnutls" object, simulating a module
668
gnutls = GnuTLS()
760
761
_need_version = b"3.3.0"
762
if check_version(_need_version) is None:
763
raise self.Error("Needs GnuTLS {} or later"
764
.format(_need_version))
765
766
_tls_rawpk_version = b"3.6.6"
767
has_rawpk = bool(check_version(_tls_rawpk_version))
768
769
if has_rawpk:
770
# Types
771
class pubkey_st(ctypes.Structure):
772
_fields = []
773
pubkey_t = ctypes.POINTER(pubkey_st)
774
775
x509_crt_fmt_t = ctypes.c_int
776
777
# All the function declarations below are from gnutls/abstract.h
778
pubkey_init = _library.gnutls_pubkey_init
779
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
780
pubkey_init.restype = _error_code
781
782
pubkey_import = _library.gnutls_pubkey_import
783
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
784
x509_crt_fmt_t]
785
pubkey_import.restype = _error_code
786
787
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
788
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
789
ctypes.POINTER(ctypes.c_ubyte),
790
ctypes.POINTER(ctypes.c_size_t)]
791
pubkey_get_key_id.restype = _error_code
792
793
pubkey_deinit = _library.gnutls_pubkey_deinit
794
pubkey_deinit.argtypes = [pubkey_t]
795
pubkey_deinit.restype = None
796
else:
797
# All the function declarations below are from gnutls/openpgp.h
798
799
openpgp_crt_init = _library.gnutls_openpgp_crt_init
800
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
801
openpgp_crt_init.restype = _error_code
802
803
openpgp_crt_import = _library.gnutls_openpgp_crt_import
804
openpgp_crt_import.argtypes = [openpgp_crt_t,
805
ctypes.POINTER(datum_t),
806
openpgp_crt_fmt_t]
807
openpgp_crt_import.restype = _error_code
808
809
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
810
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
811
ctypes.POINTER(ctypes.c_uint)]
812
openpgp_crt_verify_self.restype = _error_code
813
814
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
815
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
816
openpgp_crt_deinit.restype = None
817
818
openpgp_crt_get_fingerprint = (
819
_library.gnutls_openpgp_crt_get_fingerprint)
820
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
821
ctypes.c_void_p,
822
ctypes.POINTER(
823
ctypes.c_size_t)]
824
openpgp_crt_get_fingerprint.restype = _error_code
825
826
if check_version(b"3.6.4"):
827
certificate_type_get2 = _library.gnutls_certificate_type_get2
828
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
829
certificate_type_get2.restype = _error_code
830
831
# Remove non-public functions
832
del _error_code, _retry_on_error
833
669
834
670
835
def call_pipe(connection, # : multiprocessing.Connection
671
836
func, *args, **kwargs):
672
837
"""This function is meant to be called by multiprocessing.Process
673
838
674
839
This function runs func(*args, **kwargs), and writes the resulting
675
840
return value on the provided multiprocessing.Connection.
676
841
"""
677
842
connection.send(func(*args, **kwargs))
678
843
connection.close()
679
844
680
class Client(object):
845
846
class Client:
681
847
"""A representation of a client host served by this server.
682
848
683
849
Attributes:
684
850
approved: bool(); 'None' if not yet approved/disapproved
685
851
approval_delay: datetime.timedelta(); Time to wait for approval
686
852
approval_duration: datetime.timedelta(); Duration of one approval
687
checker: subprocess.Popen(); a running checker process used
688
to see if the client lives.
689
'None' if no process is running.
690
checker_callback_tag: a gobject event source tag, or None
853
checker: multiprocessing.Process(); a running checker process used
854
to see if the client lives. 'None' if no process is
855
running.
856
checker_callback_tag: a GLib event source tag, or None
691
857
checker_command: string; External command which is run to check
692
858
if client lives. %() expansions are done at
693
859
runtime with vars(self) as dict, so that for
694
860
instance %(name)s can be used in the command.
695
checker_initiator_tag: a gobject event source tag, or None
861
checker_initiator_tag: a GLib event source tag, or None
696
862
created: datetime.datetime(); (UTC) object creation
697
863
client_structure: Object describing what attributes a client has
698
864
and is used for storing the client at exit
699
865
current_checker_command: string; current running checker_command
700
disable_initiator_tag: a gobject event source tag, or None
866
disable_initiator_tag: a GLib event source tag, or None
701
867
enabled: bool()
702
868
fingerprint: string (40 or 32 hexadecimal digits); used to
703
uniquely identify the client
869
uniquely identify an OpenPGP client
870
key_id: string (64 hexadecimal digits); used to uniquely identify
871
a client using raw public keys
704
872
host: string; available for use by the checker command
705
873
interval: datetime.timedelta(); How often to start a new checker
706
874
last_approval_request: datetime.datetime(); (UTC) or None
722
890
disabled, or None
723
891
server_settings: The server_settings dict from main()
724
892
"""
725
893
726
894
runtime_expansions = ("approval_delay", "approval_duration",
727
"created", "enabled", "expires",
895
"created", "enabled", "expires", "key_id",
728
896
"fingerprint", "host", "interval",
729
897
"last_approval_request", "last_checked_ok",
730
898
"last_enabled", "name", "timeout")
739
907
"approved_by_default": "True",
740
908
"enabled": "True",
741
909
}
742
910
743
911
@staticmethod
744
912
def config_parser(config):
745
913
"""Construct a new dict of client settings of this form:
752
920
for client_name in config.sections():
753
921
section = dict(config.items(client_name))
754
922
client = settings[client_name] = {}
755
923
756
924
client["host"] = section["host"]
757
925
# Reformat values from string types to Python types
758
926
client["approved_by_default"] = config.getboolean(
759
927
client_name, "approved_by_default")
760
928
client["enabled"] = config.getboolean(client_name,
761
929
"enabled")
762
763
# Uppercase and remove spaces from fingerprint for later
764
# comparison purposes with return value from the
765
# fingerprint() function
930
931
# Uppercase and remove spaces from key_id and fingerprint
932
# for later comparison purposes with return value from the
933
# key_id() and fingerprint() functions
934
client["key_id"] = (section.get("key_id", "").upper()
935
.replace(" ", ""))
766
936
client["fingerprint"] = (section["fingerprint"].upper()
767
937
.replace(" ", ""))
768
938
if "secret" in section:
769
client["secret"] = section["secret"].decode("base64")
939
client["secret"] = codecs.decode(section["secret"]
940
.encode("utf-8"),
941
"base64")
770
942
elif "secfile" in section:
771
943
with open(os.path.expanduser(os.path.expandvars
772
944
(section["secfile"])),
787
959
client["last_approval_request"] = None
788
960
client["last_checked_ok"] = None
789
961
client["last_checker_status"] = -2
790
962
791
963
return settings
792
793
def __init__(self, settings, name = None, server_settings=None):
964
965
def __init__(self, settings, name=None, server_settings=None):
794
966
self.name = name
795
967
if server_settings is None:
796
968
server_settings = {}
798
970
# adding all client settings
799
971
for setting, value in settings.items():
800
972
setattr(self, setting, value)
801
973
802
974
if self.enabled:
803
975
if not hasattr(self, "last_enabled"):
804
976
self.last_enabled = datetime.datetime.utcnow()
808
980
else:
809
981
self.last_enabled = None
810
982
self.expires = None
811
983
812
984
logger.debug("Creating client %r", self.name)
985
logger.debug(" Key ID: %s", self.key_id)
813
986
logger.debug(" Fingerprint: %s", self.fingerprint)
814
987
self.created = settings.get("created",
815
988
datetime.datetime.utcnow())
816
989
817
990
# attributes specific for this server instance
818
991
self.checker = None
819
992
self.checker_initiator_tag = None
825
998
self.changedstate = multiprocessing_manager.Condition(
826
999
multiprocessing_manager.Lock())
827
1000
self.client_structure = [attr
828
for attr in self.__dict__.iterkeys()
1001
for attr in self.__dict__.keys()
829
1002
if not attr.startswith("_")]
830
1003
self.client_structure.append("client_structure")
831
1004
832
1005
for name, t in inspect.getmembers(
833
1006
type(self), lambda obj: isinstance(obj, property)):
834
1007
if not name.startswith("_"):
835
1008
self.client_structure.append(name)
836
1009
837
1010
# Send notice to process children that client state has changed
838
1011
def send_changedstate(self):
839
1012
with self.changedstate:
840
1013
self.changedstate.notify_all()
841
1014
842
1015
def enable(self):
843
1016
"""Start this client's checker and timeout hooks"""
844
1017
if getattr(self, "enabled", False):
849
1022
self.last_enabled = datetime.datetime.utcnow()
850
1023
self.init_checker()
851
1024
self.send_changedstate()
852
1025
853
1026
def disable(self, quiet=True):
854
1027
"""Disable this client."""
855
1028
if not getattr(self, "enabled", False):
857
1030
if not quiet:
858
1031
logger.info("Disabling client %s", self.name)
859
1032
if getattr(self, "disable_initiator_tag", None) is not None:
860
gobject.source_remove(self.disable_initiator_tag)
1033
GLib.source_remove(self.disable_initiator_tag)
861
1034
self.disable_initiator_tag = None
862
1035
self.expires = None
863
1036
if getattr(self, "checker_initiator_tag", None) is not None:
864
gobject.source_remove(self.checker_initiator_tag)
1037
GLib.source_remove(self.checker_initiator_tag)
865
1038
self.checker_initiator_tag = None
866
1039
self.stop_checker()
867
1040
self.enabled = False
868
1041
if not quiet:
869
1042
self.send_changedstate()
870
# Do not run this again if called by a gobject.timeout_add
1043
# Do not run this again if called by a GLib.timeout_add
871
1044
return False
872
1045
873
1046
def __del__(self):
874
1047
self.disable()
875
1048
876
1049
def init_checker(self):
877
1050
# Schedule a new checker to be started an 'interval' from now,
878
1051
# and every interval from then on.
879
1052
if self.checker_initiator_tag is not None:
880
gobject.source_remove(self.checker_initiator_tag)
881
self.checker_initiator_tag = gobject.timeout_add(
882
int(self.interval.total_seconds() * 1000),
1053
GLib.source_remove(self.checker_initiator_tag)
1054
self.checker_initiator_tag = GLib.timeout_add(
1055
random.randrange(int(self.interval.total_seconds() * 1000
1056
+ 1)),
883
1057
self.start_checker)
884
1058
# Schedule a disable() when 'timeout' has passed
885
1059
if self.disable_initiator_tag is not None:
886
gobject.source_remove(self.disable_initiator_tag)
887
self.disable_initiator_tag = gobject.timeout_add(
1060
GLib.source_remove(self.disable_initiator_tag)
1061
self.disable_initiator_tag = GLib.timeout_add(
888
1062
int(self.timeout.total_seconds() * 1000), self.disable)
889
1063
# Also start a new checker *right now*.
890
1064
self.start_checker()
891
1065
892
1066
def checker_callback(self, source, condition, connection,
893
1067
command):
894
1068
"""The checker has completed, so take appropriate actions."""
895
self.checker_callback_tag = None
896
self.checker = None
897
1069
# Read return code from connection (see call_pipe)
898
1070
returncode = connection.recv()
899
1071
connection.close()
900
1072
if self.checker is not None:
1073
self.checker.join()
1074
self.checker_callback_tag = None
1075
self.checker = None
1076
901
1077
if returncode >= 0:
902
1078
self.last_checker_status = returncode
903
1079
self.last_checker_signal = None
913
1089
logger.warning("Checker for %(name)s crashed?",
914
1090
vars(self))
915
1091
return False
916
1092
917
1093
def checked_ok(self):
918
1094
"""Assert that the client has been seen, alive and well."""
919
1095
self.last_checked_ok = datetime.datetime.utcnow()
920
1096
self.last_checker_status = 0
921
1097
self.last_checker_signal = None
922
1098
self.bump_timeout()
923
1099
924
1100
def bump_timeout(self, timeout=None):
925
1101
"""Bump up the timeout for this client."""
926
1102
if timeout is None:
927
1103
timeout = self.timeout
928
1104
if self.disable_initiator_tag is not None:
929
gobject.source_remove(self.disable_initiator_tag)
1105
GLib.source_remove(self.disable_initiator_tag)
930
1106
self.disable_initiator_tag = None
931
1107
if getattr(self, "enabled", False):
932
self.disable_initiator_tag = gobject.timeout_add(
1108
self.disable_initiator_tag = GLib.timeout_add(
933
1109
int(timeout.total_seconds() * 1000), self.disable)
934
1110
self.expires = datetime.datetime.utcnow() + timeout
935
1111
936
1112
def need_approval(self):
937
1113
self.last_approval_request = datetime.datetime.utcnow()
938
1114
939
1115
def start_checker(self):
940
1116
"""Start a new checker subprocess if one is not running.
941
1117
942
1118
If a checker already exists, leave it running and do
943
1119
nothing."""
944
1120
# The reason for not killing a running checker is that if we
949
1125
# checkers alone, the checker would have to take more time
950
1126
# than 'timeout' for the client to be disabled, which is as it
951
1127
# should be.
952
1128
953
1129
if self.checker is not None and not self.checker.is_alive():
954
1130
logger.warning("Checker was not alive; joining")
955
1131
self.checker.join()
958
1134
if self.checker is None:
959
1135
# Escape attributes for the shell
960
1136
escaped_attrs = {
961
attr: re.escape(str(getattr(self, attr)))
962
for attr in self.runtime_expansions }
1137
attr: shlex.quote(str(getattr(self, attr)))
1138
for attr in self.runtime_expansions}
963
1139
try:
964
1140
command = self.checker_command % escaped_attrs
965
1141
except TypeError as error:
977
1153
# The exception is when not debugging but nevertheless
978
1154
# running in the foreground; use the previously
979
1155
# created wnull.
980
popen_args = { "close_fds": True,
981
"shell": True,
982
"cwd": "/" }
1156
popen_args = {"close_fds": True,
1157
"shell": True,
1158
"cwd": "/"}
983
1159
if (not self.server_settings["debug"]
984
1160
and self.server_settings["foreground"]):
985
1161
popen_args.update({"stdout": wnull,
986
"stderr": wnull })
987
pipe = multiprocessing.Pipe(duplex = False)
1162
"stderr": wnull})
1163
pipe = multiprocessing.Pipe(duplex=False)
988
1164
self.checker = multiprocessing.Process(
989
target = call_pipe,
990
args = (pipe[1], subprocess.call, command),
991
kwargs = popen_args)
1165
target=call_pipe,
1166
args=(pipe[1], subprocess.call, command),
1167
kwargs=popen_args)
992
1168
self.checker.start()
993
self.checker_callback_tag = gobject.io_add_watch(
994
pipe[0].fileno(), gobject.IO_IN,
1169
self.checker_callback_tag = GLib.io_add_watch(
1170
GLib.IOChannel.unix_new(pipe[0].fileno()),
1171
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
995
1172
self.checker_callback, pipe[0], command)
996
# Re-run this periodically if run by gobject.timeout_add
1173
# Re-run this periodically if run by GLib.timeout_add
997
1174
return True
998
1175
999
1176
def stop_checker(self):
1000
1177
"""Force the checker process, if any, to stop."""
1001
1178
if self.checker_callback_tag:
1002
gobject.source_remove(self.checker_callback_tag)
1179
GLib.source_remove(self.checker_callback_tag)
1003
1180
self.checker_callback_tag = None
1004
1181
if getattr(self, "checker", None) is None:
1005
1182
return
1014
1191
byte_arrays=False):
1015
1192
"""Decorators for marking methods of a DBusObjectWithProperties to
1016
1193
become properties on the D-Bus.
1017
1194
1018
1195
The decorated method will be called with no arguments by "Get"
1019
1196
and with one argument by "Set".
1020
1197
1021
1198
The parameters, where they are supported, are the same as
1022
1199
dbus.service.method, except there is only "signature", since the
1023
1200
type from Get() and the type sent to Set() is the same.
1027
1204
if byte_arrays and signature != "ay":
1028
1205
raise ValueError("Byte arrays not supported for non-'ay'"
1029
1206
" signature {!r}".format(signature))
1030
1207
1031
1208
def decorator(func):
1032
1209
func._dbus_is_property = True
1033
1210
func._dbus_interface = dbus_interface
1036
1213
func._dbus_name = func.__name__
1037
1214
if func._dbus_name.endswith("_dbus_property"):
1038
1215
func._dbus_name = func._dbus_name[:-14]
1039
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1216
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1040
1217
return func
1041
1218
1042
1219
return decorator
1043
1220
1044
1221
1045
1222
def dbus_interface_annotations(dbus_interface):
1046
1223
"""Decorator for marking functions returning interface annotations
1047
1224
1048
1225
Usage:
1049
1226
1050
1227
@dbus_interface_annotations("org.example.Interface")
1051
1228
def _foo(self): # Function name does not matter
1052
1229
return {"org.freedesktop.DBus.Deprecated": "true",
1053
1230
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1054
1231
"false"}
1055
1232
"""
1056
1233
1057
1234
def decorator(func):
1058
1235
func._dbus_is_interface = True
1059
1236
func._dbus_interface = dbus_interface
1060
1237
func._dbus_name = dbus_interface
1061
1238
return func
1062
1239
1063
1240
return decorator
1064
1241
1065
1242
1066
1243
def dbus_annotations(annotations):
1067
1244
"""Decorator to annotate D-Bus methods, signals or properties
1068
1245
Usage:
1069
1246
1070
1247
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1071
1248
"org.freedesktop.DBus.Property."
1072
1249
"EmitsChangedSignal": "false"})
1074
1251
access="r")
1075
1252
def Property_dbus_property(self):
1076
1253
return dbus.Boolean(False)
1077
1254
1078
1255
See also the DBusObjectWithAnnotations class.
1079
1256
"""
1080
1257
1081
1258
def decorator(func):
1082
1259
func._dbus_annotations = annotations
1083
1260
return func
1084
1261
1085
1262
return decorator
1086
1263
1087
1264
1105
1282
1106
1283
class DBusObjectWithAnnotations(dbus.service.Object):
1107
1284
"""A D-Bus object with annotations.
1108
1285
1109
1286
Classes inheriting from this can use the dbus_annotations
1110
1287
decorator to add annotations to methods or signals.
1111
1288
"""
1112
1289
1113
1290
@staticmethod
1114
1291
def _is_dbus_thing(thing):
1115
1292
"""Returns a function testing if an attribute is a D-Bus thing
1116
1293
1117
1294
If called like _is_dbus_thing("method") it returns a function
1118
1295
suitable for use as predicate to inspect.getmembers().
1119
1296
"""
1120
1297
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1121
1298
False)
1122
1299
1123
1300
def _get_all_dbus_things(self, thing):
1124
1301
"""Returns a generator of (name, attribute) pairs
1125
1302
"""
1128
1305
for cls in self.__class__.__mro__
1129
1306
for name, athing in
1130
1307
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1131
1308
1132
1309
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1133
out_signature = "s",
1134
path_keyword = 'object_path',
1135
connection_keyword = 'connection')
1310
out_signature="s",
1311
path_keyword='object_path',
1312
connection_keyword='connection')
1136
1313
def Introspect(self, object_path, connection):
1137
1314
"""Overloading of standard D-Bus method.
1138
1315
1139
1316
Inserts annotation tags on methods and signals.
1140
1317
"""
1141
1318
xmlstring = dbus.service.Object.Introspect(self, object_path,
1142
1319
connection)
1143
1320
try:
1144
1321
document = xml.dom.minidom.parseString(xmlstring)
1145
1322
1146
1323
for if_tag in document.getElementsByTagName("interface"):
1147
1324
# Add annotation tags
1148
1325
for typ in ("method", "signal"):
1175
1352
if_tag.appendChild(ann_tag)
1176
1353
# Fix argument name for the Introspect method itself
1177
1354
if (if_tag.getAttribute("name")
1178
== dbus.INTROSPECTABLE_IFACE):
1355
== dbus.INTROSPECTABLE_IFACE):
1179
1356
for cn in if_tag.getElementsByTagName("method"):
1180
1357
if cn.getAttribute("name") == "Introspect":
1181
1358
for arg in cn.getElementsByTagName("arg"):
1194
1371
1195
1372
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1196
1373
"""A D-Bus object with properties.
1197
1374
1198
1375
Classes inheriting from this can use the dbus_service_property
1199
1376
decorator to expose methods as D-Bus properties. It exposes the
1200
1377
standard Get(), Set(), and GetAll() methods on the D-Bus.
1201
1378
"""
1202
1379
1203
1380
def _get_dbus_property(self, interface_name, property_name):
1204
1381
"""Returns a bound method if one exists which is a D-Bus
1205
1382
property with the specified name and interface.
1210
1387
if (value._dbus_name == property_name
1211
1388
and value._dbus_interface == interface_name):
1212
1389
return value.__get__(self)
1213
1390
1214
1391
# No such property
1215
1392
raise DBusPropertyNotFound("{}:{}.{}".format(
1216
1393
self.dbus_object_path, interface_name, property_name))
1217
1394
1218
1395
@classmethod
1219
1396
def _get_all_interface_names(cls):
1220
1397
"""Get a sequence of all interfaces supported by an object"""
1223
1400
for x in (inspect.getmro(cls))
1224
1401
for attr in dir(x))
1225
1402
if name is not None)
1226
1403
1227
1404
@dbus.service.method(dbus.PROPERTIES_IFACE,
1228
1405
in_signature="ss",
1229
1406
out_signature="v")
1237
1414
if not hasattr(value, "variant_level"):
1238
1415
return value
1239
1416
return type(value)(value, variant_level=value.variant_level+1)
1240
1417
1241
1418
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1242
1419
def Set(self, interface_name, property_name, value):
1243
1420
"""Standard D-Bus property Set() method, see D-Bus standard.
1252
1429
raise ValueError("Byte arrays not supported for non-"
1253
1430
"'ay' signature {!r}"
1254
1431
.format(prop._dbus_signature))
1255
value = dbus.ByteArray(b''.join(chr(byte)
1256
for byte in value))
1432
value = dbus.ByteArray(bytes(value))
1257
1433
prop(value)
1258
1434
1259
1435
@dbus.service.method(dbus.PROPERTIES_IFACE,
1260
1436
in_signature="s",
1261
1437
out_signature="a{sv}")
1262
1438
def GetAll(self, interface_name):
1263
1439
"""Standard D-Bus property GetAll() method, see D-Bus
1264
1440
standard.
1265
1441
1266
1442
Note: Will not include properties with access="write".
1267
1443
"""
1268
1444
properties = {}
1279
1455
properties[name] = value
1280
1456
continue
1281
1457
properties[name] = type(value)(
1282
value, variant_level = value.variant_level + 1)
1458
value, variant_level=value.variant_level + 1)
1283
1459
return dbus.Dictionary(properties, signature="sv")
1284
1460
1285
1461
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1286
1462
def PropertiesChanged(self, interface_name, changed_properties,
1287
1463
invalidated_properties):
1289
1465
standard.
1290
1466
"""
1291
1467
pass
1292
1468
1293
1469
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1294
1470
out_signature="s",
1295
1471
path_keyword='object_path',
1296
1472
connection_keyword='connection')
1297
1473
def Introspect(self, object_path, connection):
1298
1474
"""Overloading of standard D-Bus method.
1299
1475
1300
1476
Inserts property tags and interface annotation tags.
1301
1477
"""
1302
1478
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1304
1480
connection)
1305
1481
try:
1306
1482
document = xml.dom.minidom.parseString(xmlstring)
1307
1483
1308
1484
def make_tag(document, name, prop):
1309
1485
e = document.createElement("property")
1310
1486
e.setAttribute("name", name)
1311
1487
e.setAttribute("type", prop._dbus_signature)
1312
1488
e.setAttribute("access", prop._dbus_access)
1313
1489
return e
1314
1490
1315
1491
for if_tag in document.getElementsByTagName("interface"):
1316
1492
# Add property tags
1317
1493
for tag in (make_tag(document, name, prop)
1359
1535
exc_info=error)
1360
1536
return xmlstring
1361
1537
1538
1362
1539
try:
1363
1540
dbus.OBJECT_MANAGER_IFACE
1364
1541
except AttributeError:
1365
1542
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1366
1543
1544
1367
1545
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1368
1546
"""A D-Bus object with an ObjectManager.
1369
1547
1370
1548
Classes inheriting from this exposes the standard
1371
1549
GetManagedObjects call and the InterfacesAdded and
1372
1550
InterfacesRemoved signals on the standard
1373
1551
"org.freedesktop.DBus.ObjectManager" interface.
1374
1552
1375
1553
Note: No signals are sent automatically; they must be sent
1376
1554
manually.
1377
1555
"""
1378
1556
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1379
out_signature = "a{oa{sa{sv}}}")
1557
out_signature="a{oa{sa{sv}}}")
1380
1558
def GetManagedObjects(self):
1381
1559
"""This function must be overridden"""
1382
1560
raise NotImplementedError()
1383
1561
1384
1562
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1385
signature = "oa{sa{sv}}")
1563
signature="oa{sa{sv}}")
1386
1564
def InterfacesAdded(self, object_path, interfaces_and_properties):
1387
1565
pass
1388
1389
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1566
1567
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1390
1568
def InterfacesRemoved(self, object_path, interfaces):
1391
1569
pass
1392
1570
1393
1571
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1394
out_signature = "s",
1395
path_keyword = 'object_path',
1396
connection_keyword = 'connection')
1572
out_signature="s",
1573
path_keyword='object_path',
1574
connection_keyword='connection')
1397
1575
def Introspect(self, object_path, connection):
1398
1576
"""Overloading of standard D-Bus method.
1399
1577
1400
1578
Override return argument name of GetManagedObjects to be
1401
1579
"objpath_interfaces_and_properties"
1402
1580
"""
1405
1583
connection)
1406
1584
try:
1407
1585
document = xml.dom.minidom.parseString(xmlstring)
1408
1586
1409
1587
for if_tag in document.getElementsByTagName("interface"):
1410
1588
# Fix argument name for the GetManagedObjects method
1411
1589
if (if_tag.getAttribute("name")
1412
== dbus.OBJECT_MANAGER_IFACE):
1590
== dbus.OBJECT_MANAGER_IFACE):
1413
1591
for cn in if_tag.getElementsByTagName("method"):
1414
1592
if (cn.getAttribute("name")
1415
1593
== "GetManagedObjects"):
1425
1603
except (AttributeError, xml.dom.DOMException,
1426
1604
xml.parsers.expat.ExpatError) as error:
1427
1605
logger.error("Failed to override Introspection method",
1428
exc_info = error)
1606
exc_info=error)
1429
1607
return xmlstring
1430
1608
1609
1431
1610
def datetime_to_dbus(dt, variant_level=0):
1432
1611
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1433
1612
if dt is None:
1434
return dbus.String("", variant_level = variant_level)
1613
return dbus.String("", variant_level=variant_level)
1435
1614
return dbus.String(dt.isoformat(), variant_level=variant_level)
1436
1615
1437
1616
1440
1619
dbus.service.Object, it will add alternate D-Bus attributes with
1441
1620
interface names according to the "alt_interface_names" mapping.
1442
1621
Usage:
1443
1622
1444
1623
@alternate_dbus_interfaces({"org.example.Interface":
1445
1624
"net.example.AlternateInterface"})
1446
1625
class SampleDBusObject(dbus.service.Object):
1447
1626
@dbus.service.method("org.example.Interface")
1448
1627
def SampleDBusMethod():
1449
1628
pass
1450
1629
1451
1630
The above "SampleDBusMethod" on "SampleDBusObject" will be
1452
1631
reachable via two interfaces: "org.example.Interface" and
1453
1632
"net.example.AlternateInterface", the latter of which will have
1454
1633
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1455
1634
"true", unless "deprecate" is passed with a False value.
1456
1635
1457
1636
This works for methods and signals, and also for D-Bus properties
1458
1637
(from DBusObjectWithProperties) and interfaces (from the
1459
1638
dbus_interface_annotations decorator).
1460
1639
"""
1461
1640
1462
1641
def wrapper(cls):
1463
1642
for orig_interface_name, alt_interface_name in (
1464
1643
alt_interface_names.items()):
1479
1658
interface_names.add(alt_interface)
1480
1659
# Is this a D-Bus signal?
1481
1660
if getattr(attribute, "_dbus_is_signal", False):
1661
# Extract the original non-method undecorated
1662
# function by black magic
1482
1663
if sys.version_info.major == 2:
1483
# Extract the original non-method undecorated
1484
# function by black magic
1485
1664
nonmethod_func = (dict(
1486
1665
zip(attribute.func_code.co_freevars,
1487
1666
attribute.__closure__))
1488
1667
["func"].cell_contents)
1489
1668
else:
1490
nonmethod_func = attribute
1669
nonmethod_func = (dict(
1670
zip(attribute.__code__.co_freevars,
1671
attribute.__closure__))
1672
["func"].cell_contents)
1491
1673
# Create a new, but exactly alike, function
1492
1674
# object, and decorate it to be a new D-Bus signal
1493
1675
# with the alternate D-Bus interface name
1494
if sys.version_info.major == 2:
1495
new_function = types.FunctionType(
1496
nonmethod_func.func_code,
1497
nonmethod_func.func_globals,
1498
nonmethod_func.func_name,
1499
nonmethod_func.func_defaults,
1500
nonmethod_func.func_closure)
1501
else:
1502
new_function = types.FunctionType(
1503
nonmethod_func.__code__,
1504
nonmethod_func.__globals__,
1505
nonmethod_func.__name__,
1506
nonmethod_func.__defaults__,
1507
nonmethod_func.__closure__)
1676
new_function = copy_function(nonmethod_func)
1508
1677
new_function = (dbus.service.signal(
1509
1678
alt_interface,
1510
1679
attribute._dbus_signature)(new_function))
1514
1683
attribute._dbus_annotations)
1515
1684
except AttributeError:
1516
1685
pass
1686
1517
1687
# Define a creator of a function to call both the
1518
1688
# original and alternate functions, so both the
1519
1689
# original and alternate signals gets sent when
1522
1692
"""This function is a scope container to pass
1523
1693
func1 and func2 to the "call_both" function
1524
1694
outside of its arguments"""
1525
1695
1526
1696
@functools.wraps(func2)
1527
1697
def call_both(*args, **kwargs):
1528
1698
"""This function will emit two D-Bus
1529
1699
signals by calling func1 and func2"""
1530
1700
func1(*args, **kwargs)
1531
1701
func2(*args, **kwargs)
1532
# Make wrapper function look like a D-Bus signal
1702
# Make wrapper function look like a D-Bus
1703
# signal
1533
1704
for name, attr in inspect.getmembers(func2):
1534
1705
if name.startswith("_dbus_"):
1535
1706
setattr(call_both, name, attr)
1536
1707
1537
1708
return call_both
1538
1709
# Create the "call_both" function and add it to
1539
1710
# the class
1549
1720
alt_interface,
1550
1721
attribute._dbus_in_signature,
1551
1722
attribute._dbus_out_signature)
1552
(types.FunctionType(attribute.func_code,
1553
attribute.func_globals,
1554
attribute.func_name,
1555
attribute.func_defaults,
1556
attribute.func_closure)))
1723
(copy_function(attribute)))
1557
1724
# Copy annotations, if any
1558
1725
try:
1559
1726
attr[attrname]._dbus_annotations = dict(
1571
1738
attribute._dbus_access,
1572
1739
attribute._dbus_get_args_options
1573
1740
["byte_arrays"])
1574
(types.FunctionType(
1575
attribute.func_code,
1576
attribute.func_globals,
1577
attribute.func_name,
1578
attribute.func_defaults,
1579
attribute.func_closure)))
1741
(copy_function(attribute)))
1580
1742
# Copy annotations, if any
1581
1743
try:
1582
1744
attr[attrname]._dbus_annotations = dict(
1591
1753
# to the class.
1592
1754
attr[attrname] = (
1593
1755
dbus_interface_annotations(alt_interface)
1594
(types.FunctionType(attribute.func_code,
1595
attribute.func_globals,
1596
attribute.func_name,
1597
attribute.func_defaults,
1598
attribute.func_closure)))
1756
(copy_function(attribute)))
1599
1757
if deprecate:
1600
1758
# Deprecate all alternate interfaces
1601
iname="_AlternateDBusNames_interface_annotation{}"
1759
iname = "_AlternateDBusNames_interface_annotation{}"
1602
1760
for interface_name in interface_names:
1603
1761
1604
1762
@dbus_interface_annotations(interface_name)
1605
1763
def func(self):
1606
return { "org.freedesktop.DBus.Deprecated":
1607
"true" }
1764
return {"org.freedesktop.DBus.Deprecated":
1765
"true"}
1608
1766
# Find an unused name
1609
1767
for aname in (iname.format(i)
1610
1768
for i in itertools.count()):
1614
1772
if interface_names:
1615
1773
# Replace the class with a new subclass of it with
1616
1774
# methods, signals, etc. as created above.
1617
cls = type(b"{}Alternate".format(cls.__name__),
1618
(cls, ), attr)
1775
if sys.version_info.major == 2:
1776
cls = type(b"{}Alternate".format(cls.__name__),
1777
(cls, ), attr)
1778
else:
1779
cls = type("{}Alternate".format(cls.__name__),
1780
(cls, ), attr)
1619
1781
return cls
1620
1782
1621
1783
return wrapper
1622
1784
1623
1785
1625
1787
"se.bsnet.fukt.Mandos"})
1626
1788
class ClientDBus(Client, DBusObjectWithProperties):
1627
1789
"""A Client class using D-Bus
1628
1790
1629
1791
Attributes:
1630
1792
dbus_object_path: dbus.ObjectPath
1631
1793
bus: dbus.SystemBus()
1632
1794
"""
1633
1795
1634
1796
runtime_expansions = (Client.runtime_expansions
1635
1797
+ ("dbus_object_path", ))
1636
1798
1637
1799
_interface = "se.recompile.Mandos.Client"
1638
1800
1639
1801
# dbus.service.Object doesn't use super(), so we can't either.
1640
1641
def __init__(self, bus = None, *args, **kwargs):
1802
1803
def __init__(self, bus=None, *args, **kwargs):
1642
1804
self.bus = bus
1643
1805
Client.__init__(self, *args, **kwargs)
1644
1806
# Only now, when this client is initialized, can it show up on
1650
1812
"/clients/" + client_object_name)
1651
1813
DBusObjectWithProperties.__init__(self, self.bus,
1652
1814
self.dbus_object_path)
1653
1815
1654
1816
def notifychangeproperty(transform_func, dbus_name,
1655
1817
type_func=lambda x: x,
1656
1818
variant_level=1,
1658
1820
_interface=_interface):
1659
1821
""" Modify a variable so that it's a property which announces
1660
1822
its changes to DBus.
1661
1823
1662
1824
transform_fun: Function that takes a value and a variant_level
1663
1825
and transforms it to a D-Bus type.
1664
1826
dbus_name: D-Bus name of the variable
1667
1829
variant_level: D-Bus variant level. Default: 1
1668
1830
"""
1669
1831
attrname = "_{}".format(dbus_name)
1670
1832
1671
1833
def setter(self, value):
1672
1834
if hasattr(self, "dbus_object_path"):
1673
1835
if (not hasattr(self, attrname) or
1680
1842
else:
1681
1843
dbus_value = transform_func(
1682
1844
type_func(value),
1683
variant_level = variant_level)
1845
variant_level=variant_level)
1684
1846
self.PropertyChanged(dbus.String(dbus_name),
1685
1847
dbus_value)
1686
1848
self.PropertiesChanged(
1687
1849
_interface,
1688
dbus.Dictionary({ dbus.String(dbus_name):
1689
dbus_value }),
1850
dbus.Dictionary({dbus.String(dbus_name):
1851
dbus_value}),
1690
1852
dbus.Array())
1691
1853
setattr(self, attrname, value)
1692
1854
1693
1855
return property(lambda self: getattr(self, attrname), setter)
1694
1856
1695
1857
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1696
1858
approvals_pending = notifychangeproperty(dbus.Boolean,
1697
1859
"ApprovalPending",
1698
type_func = bool)
1860
type_func=bool)
1699
1861
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1700
1862
last_enabled = notifychangeproperty(datetime_to_dbus,
1701
1863
"LastEnabled")
1702
1864
checker = notifychangeproperty(
1703
1865
dbus.Boolean, "CheckerRunning",
1704
type_func = lambda checker: checker is not None)
1866
type_func=lambda checker: checker is not None)
1705
1867
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1706
1868
"LastCheckedOK")
1707
1869
last_checker_status = notifychangeproperty(dbus.Int16,
1712
1874
"ApprovedByDefault")
1713
1875
approval_delay = notifychangeproperty(
1714
1876
dbus.UInt64, "ApprovalDelay",
1715
type_func = lambda td: td.total_seconds() * 1000)
1877
type_func=lambda td: td.total_seconds() * 1000)
1716
1878
approval_duration = notifychangeproperty(
1717
1879
dbus.UInt64, "ApprovalDuration",
1718
type_func = lambda td: td.total_seconds() * 1000)
1880
type_func=lambda td: td.total_seconds() * 1000)
1719
1881
host = notifychangeproperty(dbus.String, "Host")
1720
1882
timeout = notifychangeproperty(
1721
1883
dbus.UInt64, "Timeout",
1722
type_func = lambda td: td.total_seconds() * 1000)
1884
type_func=lambda td: td.total_seconds() * 1000)
1723
1885
extended_timeout = notifychangeproperty(
1724
1886
dbus.UInt64, "ExtendedTimeout",
1725
type_func = lambda td: td.total_seconds() * 1000)
1887
type_func=lambda td: td.total_seconds() * 1000)
1726
1888
interval = notifychangeproperty(
1727
1889
dbus.UInt64, "Interval",
1728
type_func = lambda td: td.total_seconds() * 1000)
1890
type_func=lambda td: td.total_seconds() * 1000)
1729
1891
checker_command = notifychangeproperty(dbus.String, "Checker")
1730
1892
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1731
1893
invalidate_only=True)
1732
1894
1733
1895
del notifychangeproperty
1734
1896
1735
1897
def __del__(self, *args, **kwargs):
1736
1898
try:
1737
1899
self.remove_from_connection()
1740
1902
if hasattr(DBusObjectWithProperties, "__del__"):
1741
1903
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1742
1904
Client.__del__(self, *args, **kwargs)
1743
1905
1744
1906
def checker_callback(self, source, condition,
1745
1907
connection, command, *args, **kwargs):
1746
1908
ret = Client.checker_callback(self, source, condition,
1762
1924
| self.last_checker_signal),
1763
1925
dbus.String(command))
1764
1926
return ret
1765
1927
1766
1928
def start_checker(self, *args, **kwargs):
1767
1929
old_checker_pid = getattr(self.checker, "pid", None)
1768
1930
r = Client.start_checker(self, *args, **kwargs)
1772
1934
# Emit D-Bus signal
1773
1935
self.CheckerStarted(self.current_checker_command)
1774
1936
return r
1775
1937
1776
1938
def _reset_approved(self):
1777
1939
self.approved = None
1778
1940
return False
1779
1941
1780
1942
def approve(self, value=True):
1781
1943
self.approved = value
1782
gobject.timeout_add(int(self.approval_duration.total_seconds()
1783
* 1000), self._reset_approved)
1944
GLib.timeout_add(int(self.approval_duration.total_seconds()
1945
* 1000), self._reset_approved)
1784
1946
self.send_changedstate()
1785
1786
## D-Bus methods, signals & properties
1787
1788
## Interfaces
1789
1790
## Signals
1791
1947
1948
# D-Bus methods, signals & properties
1949
1950
# Interfaces
1951
1952
# Signals
1953
1792
1954
# CheckerCompleted - signal
1793
1955
@dbus.service.signal(_interface, signature="nxs")
1794
1956
def CheckerCompleted(self, exitcode, waitstatus, command):
1795
1957
"D-Bus signal"
1796
1958
pass
1797
1959
1798
1960
# CheckerStarted - signal
1799
1961
@dbus.service.signal(_interface, signature="s")
1800
1962
def CheckerStarted(self, command):
1801
1963
"D-Bus signal"
1802
1964
pass
1803
1965
1804
1966
# PropertyChanged - signal
1805
1967
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1806
1968
@dbus.service.signal(_interface, signature="sv")
1807
1969
def PropertyChanged(self, property, value):
1808
1970
"D-Bus signal"
1809
1971
pass
1810
1972
1811
1973
# GotSecret - signal
1812
1974
@dbus.service.signal(_interface)
1813
1975
def GotSecret(self):
1816
1978
server to mandos-client
1817
1979
"""
1818
1980
pass
1819
1981
1820
1982
# Rejected - signal
1821
1983
@dbus.service.signal(_interface, signature="s")
1822
1984
def Rejected(self, reason):
1823
1985
"D-Bus signal"
1824
1986
pass
1825
1987
1826
1988
# NeedApproval - signal
1827
1989
@dbus.service.signal(_interface, signature="tb")
1828
1990
def NeedApproval(self, timeout, default):
1829
1991
"D-Bus signal"
1830
1992
return self.need_approval()
1831
1832
## Methods
1833
1993
1994
# Methods
1995
1834
1996
# Approve - method
1835
1997
@dbus.service.method(_interface, in_signature="b")
1836
1998
def Approve(self, value):
1837
1999
self.approve(value)
1838
2000
1839
2001
# CheckedOK - method
1840
2002
@dbus.service.method(_interface)
1841
2003
def CheckedOK(self):
1842
2004
self.checked_ok()
1843
2005
1844
2006
# Enable - method
1845
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1846
2008
@dbus.service.method(_interface)
1847
2009
def Enable(self):
1848
2010
"D-Bus method"
1849
2011
self.enable()
1850
2012
1851
2013
# StartChecker - method
1852
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1853
2015
@dbus.service.method(_interface)
1854
2016
def StartChecker(self):
1855
2017
"D-Bus method"
1856
2018
self.start_checker()
1857
2019
1858
2020
# Disable - method
1859
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1860
2022
@dbus.service.method(_interface)
1861
2023
def Disable(self):
1862
2024
"D-Bus method"
1863
2025
self.disable()
1864
2026
1865
2027
# StopChecker - method
1866
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1867
2029
@dbus.service.method(_interface)
1868
2030
def StopChecker(self):
1869
2031
self.stop_checker()
1870
1871
## Properties
1872
2032
2033
# Properties
2034
1873
2035
# ApprovalPending - property
1874
2036
@dbus_service_property(_interface, signature="b", access="read")
1875
2037
def ApprovalPending_dbus_property(self):
1876
2038
return dbus.Boolean(bool(self.approvals_pending))
1877
2039
1878
2040
# ApprovedByDefault - property
1879
2041
@dbus_service_property(_interface,
1880
2042
signature="b",
1883
2045
if value is None: # get
1884
2046
return dbus.Boolean(self.approved_by_default)
1885
2047
self.approved_by_default = bool(value)
1886
2048
1887
2049
# ApprovalDelay - property
1888
2050
@dbus_service_property(_interface,
1889
2051
signature="t",
1893
2055
return dbus.UInt64(self.approval_delay.total_seconds()
1894
2056
* 1000)
1895
2057
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1896
2058
1897
2059
# ApprovalDuration - property
1898
2060
@dbus_service_property(_interface,
1899
2061
signature="t",
1903
2065
return dbus.UInt64(self.approval_duration.total_seconds()
1904
2066
* 1000)
1905
2067
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1906
2068
1907
2069
# Name - property
1908
2070
@dbus_annotations(
1909
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1910
2072
@dbus_service_property(_interface, signature="s", access="read")
1911
2073
def Name_dbus_property(self):
1912
2074
return dbus.String(self.name)
1913
2075
2076
# KeyID - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
@dbus_service_property(_interface, signature="s", access="read")
2080
def KeyID_dbus_property(self):
2081
return dbus.String(self.key_id)
2082
1914
2083
# Fingerprint - property
1915
2084
@dbus_annotations(
1916
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1917
2086
@dbus_service_property(_interface, signature="s", access="read")
1918
2087
def Fingerprint_dbus_property(self):
1919
2088
return dbus.String(self.fingerprint)
1920
2089
1921
2090
# Host - property
1922
2091
@dbus_service_property(_interface,
1923
2092
signature="s",
1926
2095
if value is None: # get
1927
2096
return dbus.String(self.host)
1928
2097
self.host = str(value)
1929
2098
1930
2099
# Created - property
1931
2100
@dbus_annotations(
1932
2101
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1933
2102
@dbus_service_property(_interface, signature="s", access="read")
1934
2103
def Created_dbus_property(self):
1935
2104
return datetime_to_dbus(self.created)
1936
2105
1937
2106
# LastEnabled - property
1938
2107
@dbus_service_property(_interface, signature="s", access="read")
1939
2108
def LastEnabled_dbus_property(self):
1940
2109
return datetime_to_dbus(self.last_enabled)
1941
2110
1942
2111
# Enabled - property
1943
2112
@dbus_service_property(_interface,
1944
2113
signature="b",
1950
2119
self.enable()
1951
2120
else:
1952
2121
self.disable()
1953
2122
1954
2123
# LastCheckedOK - property
1955
2124
@dbus_service_property(_interface,
1956
2125
signature="s",
1960
2129
self.checked_ok()
1961
2130
return
1962
2131
return datetime_to_dbus(self.last_checked_ok)
1963
2132
1964
2133
# LastCheckerStatus - property
1965
2134
@dbus_service_property(_interface, signature="n", access="read")
1966
2135
def LastCheckerStatus_dbus_property(self):
1967
2136
return dbus.Int16(self.last_checker_status)
1968
2137
1969
2138
# Expires - property
1970
2139
@dbus_service_property(_interface, signature="s", access="read")
1971
2140
def Expires_dbus_property(self):
1972
2141
return datetime_to_dbus(self.expires)
1973
2142
1974
2143
# LastApprovalRequest - property
1975
2144
@dbus_service_property(_interface, signature="s", access="read")
1976
2145
def LastApprovalRequest_dbus_property(self):
1977
2146
return datetime_to_dbus(self.last_approval_request)
1978
2147
1979
2148
# Timeout - property
1980
2149
@dbus_service_property(_interface,
1981
2150
signature="t",
1996
2165
if (getattr(self, "disable_initiator_tag", None)
1997
2166
is None):
1998
2167
return
1999
gobject.source_remove(self.disable_initiator_tag)
2000
self.disable_initiator_tag = gobject.timeout_add(
2168
GLib.source_remove(self.disable_initiator_tag)
2169
self.disable_initiator_tag = GLib.timeout_add(
2001
2170
int((self.expires - now).total_seconds() * 1000),
2002
2171
self.disable)
2003
2172
2004
2173
# ExtendedTimeout - property
2005
2174
@dbus_service_property(_interface,
2006
2175
signature="t",
2010
2179
return dbus.UInt64(self.extended_timeout.total_seconds()
2011
2180
* 1000)
2012
2181
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2013
2182
2014
2183
# Interval - property
2015
2184
@dbus_service_property(_interface,
2016
2185
signature="t",
2023
2192
return
2024
2193
if self.enabled:
2025
2194
# Reschedule checker run
2026
gobject.source_remove(self.checker_initiator_tag)
2027
self.checker_initiator_tag = gobject.timeout_add(
2195
GLib.source_remove(self.checker_initiator_tag)
2196
self.checker_initiator_tag = GLib.timeout_add(
2028
2197
value, self.start_checker)
2029
self.start_checker() # Start one now, too
2030
2198
self.start_checker() # Start one now, too
2199
2031
2200
# Checker - property
2032
2201
@dbus_service_property(_interface,
2033
2202
signature="s",
2036
2205
if value is None: # get
2037
2206
return dbus.String(self.checker_command)
2038
2207
self.checker_command = str(value)
2039
2208
2040
2209
# CheckerRunning - property
2041
2210
@dbus_service_property(_interface,
2042
2211
signature="b",
2048
2217
self.start_checker()
2049
2218
else:
2050
2219
self.stop_checker()
2051
2220
2052
2221
# ObjectPath - property
2053
2222
@dbus_annotations(
2054
2223
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2055
2224
"org.freedesktop.DBus.Deprecated": "true"})
2056
2225
@dbus_service_property(_interface, signature="o", access="read")
2057
2226
def ObjectPath_dbus_property(self):
2058
return self.dbus_object_path # is already a dbus.ObjectPath
2059
2227
return self.dbus_object_path # is already a dbus.ObjectPath
2228
2060
2229
# Secret = property
2061
2230
@dbus_annotations(
2062
2231
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2067
2236
byte_arrays=True)
2068
2237
def Secret_dbus_property(self, value):
2069
2238
self.secret = bytes(value)
2070
2239
2071
2240
del _interface
2072
2241
2073
2242
2074
class ProxyClient(object):
2075
def __init__(self, child_pipe, fpr, address):
2243
class ProxyClient:
2244
def __init__(self, child_pipe, key_id, fpr, address):
2076
2245
self._pipe = child_pipe
2077
self._pipe.send(('init', fpr, address))
2246
self._pipe.send(('init', key_id, fpr, address))
2078
2247
if not self._pipe.recv():
2079
raise KeyError(fpr)
2080
2248
raise KeyError(key_id or fpr)
2249
2081
2250
def __getattribute__(self, name):
2082
2251
if name == '_pipe':
2083
2252
return super(ProxyClient, self).__getattribute__(name)
2086
2255
if data[0] == 'data':
2087
2256
return data[1]
2088
2257
if data[0] == 'function':
2089
2258
2090
2259
def func(*args, **kwargs):
2091
2260
self._pipe.send(('funcall', name, args, kwargs))
2092
2261
return self._pipe.recv()[1]
2093
2262
2094
2263
return func
2095
2264
2096
2265
def __setattr__(self, name, value):
2097
2266
if name == '_pipe':
2098
2267
return super(ProxyClient, self).__setattr__(name, value)
2101
2270
2102
2271
class ClientHandler(socketserver.BaseRequestHandler, object):
2103
2272
"""A class to handle client connections.
2104
2273
2105
2274
Instantiated once for each connection to handle it.
2106
2275
Note: This will run in its own forked process."""
2107
2276
2108
2277
def handle(self):
2109
2278
with contextlib.closing(self.server.child_pipe) as child_pipe:
2110
2279
logger.info("TCP connection from: %s",
2111
2280
str(self.client_address))
2112
2281
logger.debug("Pipe FD: %d",
2113
2282
self.server.child_pipe.fileno())
2114
2283
2115
2284
session = gnutls.ClientSession(self.request)
2116
2117
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
2118
# "+AES-256-CBC", "+SHA1",
2119
# "+COMP-NULL", "+CTYPE-OPENPGP",
2120
# "+DHE-DSS"))
2285
2286
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2287
# "+AES-256-CBC", "+SHA1",
2288
# "+COMP-NULL", "+CTYPE-OPENPGP",
2289
# "+DHE-DSS"))
2121
2290
# Use a fallback default, since this MUST be set.
2122
2291
priority = self.server.gnutls_priority
2123
2292
if priority is None:
2124
2293
priority = "NORMAL"
2125
gnutls.priority_set_direct(session._c_object, priority,
2294
gnutls.priority_set_direct(session._c_object,
2295
priority.encode("utf-8"),
2126
2296
None)
2127
2297
2128
2298
# Start communication using the Mandos protocol
2129
2299
# Get protocol number
2130
2300
line = self.request.makefile().readline()
2135
2305
except (ValueError, IndexError, RuntimeError) as error:
2136
2306
logger.error("Unknown protocol version: %s", error)
2137
2307
return
2138
2308
2139
2309
# Start GnuTLS connection
2140
2310
try:
2141
2311
session.handshake()
2145
2315
# established. Just abandon the request.
2146
2316
return
2147
2317
logger.debug("Handshake succeeded")
2148
2318
2149
2319
approval_required = False
2150
2320
try:
2151
try:
2152
fpr = self.fingerprint(
2153
self.peer_certificate(session))
2154
except (TypeError, gnutls.Error) as error:
2155
logger.warning("Bad certificate: %s", error)
2156
return
2157
logger.debug("Fingerprint: %s", fpr)
2158
2159
try:
2160
client = ProxyClient(child_pipe, fpr,
2321
if gnutls.has_rawpk:
2322
fpr = b""
2323
try:
2324
key_id = self.key_id(
2325
self.peer_certificate(session))
2326
except (TypeError, gnutls.Error) as error:
2327
logger.warning("Bad certificate: %s", error)
2328
return
2329
logger.debug("Key ID: %s", key_id)
2330
2331
else:
2332
key_id = b""
2333
try:
2334
fpr = self.fingerprint(
2335
self.peer_certificate(session))
2336
except (TypeError, gnutls.Error) as error:
2337
logger.warning("Bad certificate: %s", error)
2338
return
2339
logger.debug("Fingerprint: %s", fpr)
2340
2341
try:
2342
client = ProxyClient(child_pipe, key_id, fpr,
2161
2343
self.client_address)
2162
2344
except KeyError:
2163
2345
return
2164
2346
2165
2347
if client.approval_delay:
2166
2348
delay = client.approval_delay
2167
2349
client.approvals_pending += 1
2168
2350
approval_required = True
2169
2351
2170
2352
while True:
2171
2353
if not client.enabled:
2172
2354
logger.info("Client %s is disabled",
2175
2357
# Emit D-Bus signal
2176
2358
client.Rejected("Disabled")
2177
2359
return
2178
2360
2179
2361
if client.approved or not client.approval_delay:
2180
#We are approved or approval is disabled
2362
# We are approved or approval is disabled
2181
2363
break
2182
2364
elif client.approved is None:
2183
2365
logger.info("Client %s needs approval",
2194
2376
# Emit D-Bus signal
2195
2377
client.Rejected("Denied")
2196
2378
return
2197
2198
#wait until timeout or approved
2379
2380
# wait until timeout or approved
2199
2381
time = datetime.datetime.now()
2200
2382
client.changedstate.acquire()
2201
2383
client.changedstate.wait(delay.total_seconds())
2214
2396
break
2215
2397
else:
2216
2398
delay -= time2 - time
2217
2218
sent_size = 0
2219
while sent_size < len(client.secret):
2220
try:
2221
sent = session.send(client.secret[sent_size:])
2222
except gnutls.Error as error:
2223
logger.warning("gnutls send failed",
2224
exc_info=error)
2225
return
2226
logger.debug("Sent: %d, remaining: %d", sent,
2227
len(client.secret) - (sent_size
2228
+ sent))
2229
sent_size += sent
2230
2399
2400
try:
2401
session.send(client.secret)
2402
except gnutls.Error as error:
2403
logger.warning("gnutls send failed",
2404
exc_info=error)
2405
return
2406
2231
2407
logger.info("Sending secret to %s", client.name)
2232
2408
# bump the timeout using extended_timeout
2233
2409
client.bump_timeout(client.extended_timeout)
2234
2410
if self.server.use_dbus:
2235
2411
# Emit D-Bus signal
2236
2412
client.GotSecret()
2237
2413
2238
2414
finally:
2239
2415
if approval_required:
2240
2416
client.approvals_pending -= 1
2243
2419
except gnutls.Error as error:
2244
2420
logger.warning("GnuTLS bye failed",
2245
2421
exc_info=error)
2246
2422
2247
2423
@staticmethod
2248
2424
def peer_certificate(session):
2249
"Return the peer's OpenPGP certificate as a bytestring"
2250
# If not an OpenPGP certificate...
2251
if (gnutls.certificate_type_get(session._c_object)
2252
!= gnutls.CRT_OPENPGP):
2425
"Return the peer's certificate as a bytestring"
2426
try:
2427
cert_type = gnutls.certificate_type_get2(session._c_object,
2428
gnutls.CTYPE_PEERS)
2429
except AttributeError:
2430
cert_type = gnutls.certificate_type_get(session._c_object)
2431
if gnutls.has_rawpk:
2432
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2433
else:
2434
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2435
# If not a valid certificate type...
2436
if cert_type not in valid_cert_types:
2437
logger.info("Cert type %r not in %r", cert_type,
2438
valid_cert_types)
2253
2439
# ...return invalid data
2254
2440
return b""
2255
2441
list_size = ctypes.c_uint(1)
2261
2447
return None
2262
2448
cert = cert_list[0]
2263
2449
return ctypes.string_at(cert.data, cert.size)
2264
2450
2451
@staticmethod
2452
def key_id(certificate):
2453
"Convert a certificate bytestring to a hexdigit key ID"
2454
# New GnuTLS "datum" with the public key
2455
datum = gnutls.datum_t(
2456
ctypes.cast(ctypes.c_char_p(certificate),
2457
ctypes.POINTER(ctypes.c_ubyte)),
2458
ctypes.c_uint(len(certificate)))
2459
# XXX all these need to be created in the gnutls "module"
2460
# New empty GnuTLS certificate
2461
pubkey = gnutls.pubkey_t()
2462
gnutls.pubkey_init(ctypes.byref(pubkey))
2463
# Import the raw public key into the certificate
2464
gnutls.pubkey_import(pubkey,
2465
ctypes.byref(datum),
2466
gnutls.X509_FMT_DER)
2467
# New buffer for the key ID
2468
buf = ctypes.create_string_buffer(32)
2469
buf_len = ctypes.c_size_t(len(buf))
2470
# Get the key ID from the raw public key into the buffer
2471
gnutls.pubkey_get_key_id(pubkey,
2472
gnutls.KEYID_USE_SHA256,
2473
ctypes.cast(ctypes.byref(buf),
2474
ctypes.POINTER(ctypes.c_ubyte)),
2475
ctypes.byref(buf_len))
2476
# Deinit the certificate
2477
gnutls.pubkey_deinit(pubkey)
2478
2479
# Convert the buffer to a Python bytestring
2480
key_id = ctypes.string_at(buf, buf_len.value)
2481
# Convert the bytestring to hexadecimal notation
2482
hex_key_id = binascii.hexlify(key_id).upper()
2483
return hex_key_id
2484
2265
2485
@staticmethod
2266
2486
def fingerprint(openpgp):
2267
2487
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2282
2502
ctypes.byref(crtverify))
2283
2503
if crtverify.value != 0:
2284
2504
gnutls.openpgp_crt_deinit(crt)
2285
raise gnutls.CertificateSecurityError("Verify failed")
2505
raise gnutls.CertificateSecurityError(code
2506
=crtverify.value)
2286
2507
# New buffer for the fingerprint
2287
2508
buf = ctypes.create_string_buffer(20)
2288
2509
buf_len = ctypes.c_size_t()
2298
2519
return hex_fpr
2299
2520
2300
2521
2301
class MultiprocessingMixIn(object):
2522
class MultiprocessingMixIn:
2302
2523
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2303
2524
2304
2525
def sub_process_main(self, request, address):
2305
2526
try:
2306
2527
self.finish_request(request, address)
2307
2528
except Exception:
2308
2529
self.handle_error(request, address)
2309
2530
self.close_request(request)
2310
2531
2311
2532
def process_request(self, request, address):
2312
2533
"""Start a new process to process the request."""
2313
proc = multiprocessing.Process(target = self.sub_process_main,
2314
args = (request, address))
2534
proc = multiprocessing.Process(target=self.sub_process_main,
2535
args=(request, address))
2315
2536
proc.start()
2316
2537
return proc
2317
2538
2318
2539
2319
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2540
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
2320
2541
""" adds a pipe to the MixIn """
2321
2542
2322
2543
def process_request(self, request, client_address):
2323
2544
"""Overrides and wraps the original process_request().
2324
2545
2325
2546
This function creates a new pipe in self.pipe
2326
2547
"""
2327
2548
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2328
2549
2329
2550
proc = MultiprocessingMixIn.process_request(self, request,
2330
2551
client_address)
2331
2552
self.child_pipe.close()
2332
2553
self.add_pipe(parent_pipe, proc)
2333
2554
2334
2555
def add_pipe(self, parent_pipe, proc):
2335
2556
"""Dummy function; override as necessary"""
2336
2557
raise NotImplementedError()
2337
2558
2338
2559
2339
2560
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2340
socketserver.TCPServer, object):
2561
socketserver.TCPServer):
2341
2562
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2342
2563
2343
2564
Attributes:
2344
2565
enabled: Boolean; whether this server is activated yet
2345
2566
interface: None or a network interface name (string)
2346
2567
use_ipv6: Boolean; to use IPv6 or not
2347
2568
"""
2348
2569
2349
2570
def __init__(self, server_address, RequestHandlerClass,
2350
2571
interface=None,
2351
2572
use_ipv6=True,
2361
2582
self.socketfd = socketfd
2362
2583
# Save the original socket.socket() function
2363
2584
self.socket_socket = socket.socket
2585
2364
2586
# To implement --socket, we monkey patch socket.socket.
2365
#
2587
#
2366
2588
# (When socketserver.TCPServer is a new-style class, we
2367
2589
# could make self.socket into a property instead of monkey
2368
2590
# patching socket.socket.)
2369
#
2591
#
2370
2592
# Create a one-time-only replacement for socket.socket()
2371
2593
@functools.wraps(socket.socket)
2372
2594
def socket_wrapper(*args, **kwargs):
2384
2606
# socket_wrapper(), if socketfd was set.
2385
2607
socketserver.TCPServer.__init__(self, server_address,
2386
2608
RequestHandlerClass)
2387
2609
2388
2610
def server_bind(self):
2389
2611
"""This overrides the normal server_bind() function
2390
2612
to bind to an interface if one was specified, and also NOT to
2391
2613
bind to an address or port if they were not specified."""
2614
global SO_BINDTODEVICE
2392
2615
if self.interface is not None:
2393
2616
if SO_BINDTODEVICE is None:
2394
logger.error("SO_BINDTODEVICE does not exist;"
2395
" cannot bind to interface %s",
2396
self.interface)
2397
else:
2398
try:
2399
self.socket.setsockopt(
2400
socket.SOL_SOCKET, SO_BINDTODEVICE,
2401
(self.interface + "\0").encode("utf-8"))
2402
except socket.error as error:
2403
if error.errno == errno.EPERM:
2404
logger.error("No permission to bind to"
2405
" interface %s", self.interface)
2406
elif error.errno == errno.ENOPROTOOPT:
2407
logger.error("SO_BINDTODEVICE not available;"
2408
" cannot bind to interface %s",
2409
self.interface)
2410
elif error.errno == errno.ENODEV:
2411
logger.error("Interface %s does not exist,"
2412
" cannot bind", self.interface)
2413
else:
2414
raise
2617
# Fall back to a hard-coded value which seems to be
2618
# common enough.
2619
logger.warning("SO_BINDTODEVICE not found, trying 25")
2620
SO_BINDTODEVICE = 25
2621
try:
2622
self.socket.setsockopt(
2623
socket.SOL_SOCKET, SO_BINDTODEVICE,
2624
(self.interface + "\0").encode("utf-8"))
2625
except socket.error as error:
2626
if error.errno == errno.EPERM:
2627
logger.error("No permission to bind to"
2628
" interface %s", self.interface)
2629
elif error.errno == errno.ENOPROTOOPT:
2630
logger.error("SO_BINDTODEVICE not available;"
2631
" cannot bind to interface %s",
2632
self.interface)
2633
elif error.errno == errno.ENODEV:
2634
logger.error("Interface %s does not exist,"
2635
" cannot bind", self.interface)
2636
else:
2637
raise
2415
2638
# Only bind(2) the socket if we really need to.
2416
2639
if self.server_address[0] or self.server_address[1]:
2640
if self.server_address[1]:
2641
self.allow_reuse_address = True
2417
2642
if not self.server_address[0]:
2418
2643
if self.address_family == socket.AF_INET6:
2419
any_address = "::" # in6addr_any
2644
any_address = "::" # in6addr_any
2420
2645
else:
2421
any_address = "0.0.0.0" # INADDR_ANY
2646
any_address = "0.0.0.0" # INADDR_ANY
2422
2647
self.server_address = (any_address,
2423
2648
self.server_address[1])
2424
2649
elif not self.server_address[1]:
2434
2659
2435
2660
class MandosServer(IPv6_TCPServer):
2436
2661
"""Mandos server.
2437
2662
2438
2663
Attributes:
2439
2664
clients: set of Client objects
2440
2665
gnutls_priority GnuTLS priority string
2441
2666
use_dbus: Boolean; to emit D-Bus signals or not
2442
2443
Assumes a gobject.MainLoop event loop.
2667
2668
Assumes a GLib.MainLoop event loop.
2444
2669
"""
2445
2670
2446
2671
def __init__(self, server_address, RequestHandlerClass,
2447
2672
interface=None,
2448
2673
use_ipv6=True,
2458
2683
self.gnutls_priority = gnutls_priority
2459
2684
IPv6_TCPServer.__init__(self, server_address,
2460
2685
RequestHandlerClass,
2461
interface = interface,
2462
use_ipv6 = use_ipv6,
2463
socketfd = socketfd)
2464
2686
interface=interface,
2687
use_ipv6=use_ipv6,
2688
socketfd=socketfd)
2689
2465
2690
def server_activate(self):
2466
2691
if self.enabled:
2467
2692
return socketserver.TCPServer.server_activate(self)
2468
2693
2469
2694
def enable(self):
2470
2695
self.enabled = True
2471
2696
2472
2697
def add_pipe(self, parent_pipe, proc):
2473
2698
# Call "handle_ipc" for both data and EOF events
2474
gobject.io_add_watch(
2475
parent_pipe.fileno(),
2476
gobject.IO_IN | gobject.IO_HUP,
2699
GLib.io_add_watch(
2700
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2701
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2477
2702
functools.partial(self.handle_ipc,
2478
parent_pipe = parent_pipe,
2479
proc = proc))
2480
2703
parent_pipe=parent_pipe,
2704
proc=proc))
2705
2481
2706
def handle_ipc(self, source, condition,
2482
2707
parent_pipe=None,
2483
proc = None,
2708
proc=None,
2484
2709
client_object=None):
2485
2710
# error, or the other end of multiprocessing.Pipe has closed
2486
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2711
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2487
2712
# Wait for other process to exit
2488
2713
proc.join()
2489
2714
return False
2490
2715
2491
2716
# Read a request from the child
2492
2717
request = parent_pipe.recv()
2493
2718
command = request[0]
2494
2719
2495
2720
if command == 'init':
2496
fpr = request[1]
2497
address = request[2]
2498
2499
for c in self.clients.itervalues():
2500
if c.fingerprint == fpr:
2721
key_id = request[1].decode("ascii")
2722
fpr = request[2].decode("ascii")
2723
address = request[3]
2724
2725
for c in self.clients.values():
2726
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2727
continue
2728
if key_id and c.key_id == key_id:
2729
client = c
2730
break
2731
if fpr and c.fingerprint == fpr:
2501
2732
client = c
2502
2733
break
2503
2734
else:
2504
logger.info("Client not found for fingerprint: %s, ad"
2505
"dress: %s", fpr, address)
2735
logger.info("Client not found for key ID: %s, address"
2736
": %s", key_id or fpr, address)
2506
2737
if self.use_dbus:
2507
2738
# Emit D-Bus signal
2508
mandos_dbus_service.ClientNotFound(fpr,
2739
mandos_dbus_service.ClientNotFound(key_id or fpr,
2509
2740
address[0])
2510
2741
parent_pipe.send(False)
2511
2742
return False
2512
2513
gobject.io_add_watch(
2514
parent_pipe.fileno(),
2515
gobject.IO_IN | gobject.IO_HUP,
2743
2744
GLib.io_add_watch(
2745
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2746
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2516
2747
functools.partial(self.handle_ipc,
2517
parent_pipe = parent_pipe,
2518
proc = proc,
2519
client_object = client))
2748
parent_pipe=parent_pipe,
2749
proc=proc,
2750
client_object=client))
2520
2751
parent_pipe.send(True)
2521
2752
# remove the old hook in favor of the new above hook on
2522
2753
# same fileno
2525
2756
funcname = request[1]
2526
2757
args = request[2]
2527
2758
kwargs = request[3]
2528
2759
2529
2760
parent_pipe.send(('data', getattr(client_object,
2530
2761
funcname)(*args,
2531
2762
**kwargs)))
2532
2763
2533
2764
if command == 'getattr':
2534
2765
attrname = request[1]
2535
2766
if isinstance(client_object.__getattribute__(attrname),
2536
collections.Callable):
2767
collections.abc.Callable):
2537
2768
parent_pipe.send(('function', ))
2538
2769
else:
2539
2770
parent_pipe.send((
2540
2771
'data', client_object.__getattribute__(attrname)))
2541
2772
2542
2773
if command == 'setattr':
2543
2774
attrname = request[1]
2544
2775
value = request[2]
2545
2776
setattr(client_object, attrname, value)
2546
2777
2547
2778
return True
2548
2779
2549
2780
2550
2781
def rfc3339_duration_to_delta(duration):
2551
2782
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2552
2553
>>> rfc3339_duration_to_delta("P7D")
2554
datetime.timedelta(7)
2555
>>> rfc3339_duration_to_delta("PT60S")
2556
datetime.timedelta(0, 60)
2557
>>> rfc3339_duration_to_delta("PT60M")
2558
datetime.timedelta(0, 3600)
2559
>>> rfc3339_duration_to_delta("PT24H")
2560
datetime.timedelta(1)
2561
>>> rfc3339_duration_to_delta("P1W")
2562
datetime.timedelta(7)
2563
>>> rfc3339_duration_to_delta("PT5M30S")
2564
datetime.timedelta(0, 330)
2565
>>> rfc3339_duration_to_delta("P1DT3M20S")
2566
datetime.timedelta(1, 200)
2783
2784
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2785
True
2786
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2787
True
2788
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2789
True
2790
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2791
True
2792
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2793
True
2794
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2795
True
2796
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2797
True
2567
2798
"""
2568
2799
2569
2800
# Parsing an RFC 3339 duration with regular expressions is not
2570
2801
# possible - there would have to be multiple places for the same
2571
2802
# values, like seconds. The current code, while more esoteric, is
2572
2803
# cleaner without depending on a parsing library. If Python had a
2573
2804
# built-in library for parsing we would use it, but we'd like to
2574
2805
# avoid excessive use of external libraries.
2575
2806
2576
2807
# New type for defining tokens, syntax, and semantics all-in-one
2577
2808
Token = collections.namedtuple("Token", (
2578
2809
"regexp", # To match token; if "value" is not None, must have
2611
2842
frozenset((token_year, token_month,
2612
2843
token_day, token_time,
2613
2844
token_week)))
2614
# Define starting values
2615
value = datetime.timedelta() # Value so far
2845
# Define starting values:
2846
# Value so far
2847
value = datetime.timedelta()
2616
2848
found_token = None
2617
followers = frozenset((token_duration, )) # Following valid tokens
2618
s = duration # String left to parse
2849
# Following valid tokens
2850
followers = frozenset((token_duration, ))
2851
# String left to parse
2852
s = duration
2619
2853
# Loop until end token is found
2620
2854
while found_token is not token_end:
2621
2855
# Search for any currently valid tokens
2645
2879
2646
2880
def string_to_delta(interval):
2647
2881
"""Parse a string and return a datetime.timedelta
2648
2649
>>> string_to_delta('7d')
2650
datetime.timedelta(7)
2651
>>> string_to_delta('60s')
2652
datetime.timedelta(0, 60)
2653
>>> string_to_delta('60m')
2654
datetime.timedelta(0, 3600)
2655
>>> string_to_delta('24h')
2656
datetime.timedelta(1)
2657
>>> string_to_delta('1w')
2658
datetime.timedelta(7)
2659
>>> string_to_delta('5m 30s')
2660
datetime.timedelta(0, 330)
2882
2883
>>> string_to_delta('7d') == datetime.timedelta(7)
2884
True
2885
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2886
True
2887
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2888
True
2889
>>> string_to_delta('24h') == datetime.timedelta(1)
2890
True
2891
>>> string_to_delta('1w') == datetime.timedelta(7)
2892
True
2893
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2894
True
2661
2895
"""
2662
2896
2663
2897
try:
2664
2898
return rfc3339_duration_to_delta(interval)
2665
2899
except ValueError:
2666
2900
pass
2667
2901
2668
2902
timevalue = datetime.timedelta(0)
2669
2903
for s in interval.split():
2670
2904
try:
2688
2922
return timevalue
2689
2923
2690
2924
2691
def daemon(nochdir = False, noclose = False):
2925
def daemon(nochdir=False, noclose=False):
2692
2926
"""See daemon(3). Standard BSD Unix function.
2693
2927
2694
2928
This should really exist as os.daemon, but it doesn't (yet)."""
2695
2929
if os.fork():
2696
2930
sys.exit()
2714
2948
2715
2949
2716
2950
def main():
2717
2951
2718
2952
##################################################################
2719
2953
# Parsing of options, both command line and config file
2720
2954
2721
2955
parser = argparse.ArgumentParser()
2722
2956
parser.add_argument("-v", "--version", action="version",
2723
version = "%(prog)s {}".format(version),
2957
version="%(prog)s {}".format(version),
2724
2958
help="show version number and exit")
2725
2959
parser.add_argument("-i", "--interface", metavar="IF",
2726
2960
help="Bind to interface IF")
2762
2996
parser.add_argument("--no-zeroconf", action="store_false",
2763
2997
dest="zeroconf", help="Do not use Zeroconf",
2764
2998
default=None)
2765
2999
2766
3000
options = parser.parse_args()
2767
2768
if options.check:
2769
import doctest
2770
fail_count, test_count = doctest.testmod()
2771
sys.exit(os.EX_OK if fail_count == 0 else 1)
2772
3001
2773
3002
# Default values for config file for server-global settings
2774
server_defaults = { "interface": "",
2775
"address": "",
2776
"port": "",
2777
"debug": "False",
2778
"priority":
2779
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2780
":+SIGN-DSA-SHA256",
2781
"servicename": "Mandos",
2782
"use_dbus": "True",
2783
"use_ipv6": "True",
2784
"debuglevel": "",
2785
"restore": "True",
2786
"socket": "",
2787
"statedir": "/var/lib/mandos",
2788
"foreground": "False",
2789
"zeroconf": "True",
2790
}
2791
3003
if gnutls.has_rawpk:
3004
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3005
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3006
else:
3007
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3008
":+SIGN-DSA-SHA256")
3009
server_defaults = {"interface": "",
3010
"address": "",
3011
"port": "",
3012
"debug": "False",
3013
"priority": priority,
3014
"servicename": "Mandos",
3015
"use_dbus": "True",
3016
"use_ipv6": "True",
3017
"debuglevel": "",
3018
"restore": "True",
3019
"socket": "",
3020
"statedir": "/var/lib/mandos",
3021
"foreground": "False",
3022
"zeroconf": "True",
3023
}
3024
del priority
3025
2792
3026
# Parse config file for server-global settings
2793
server_config = configparser.SafeConfigParser(server_defaults)
3027
server_config = configparser.ConfigParser(server_defaults)
2794
3028
del server_defaults
2795
3029
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2796
# Convert the SafeConfigParser object to a dict
3030
# Convert the ConfigParser object to a dict
2797
3031
server_settings = server_config.defaults()
2798
3032
# Use the appropriate methods on the non-string config options
2799
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3033
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3034
"foreground", "zeroconf"):
2800
3035
server_settings[option] = server_config.getboolean("DEFAULT",
2801
3036
option)
2802
3037
if server_settings["port"]:
2812
3047
server_settings["socket"] = os.dup(server_settings
2813
3048
["socket"])
2814
3049
del server_config
2815
3050
2816
3051
# Override the settings from the config file with command line
2817
3052
# options, if set.
2818
3053
for option in ("interface", "address", "port", "debug",
2836
3071
if server_settings["debug"]:
2837
3072
server_settings["foreground"] = True
2838
3073
# Now we have our good server settings in "server_settings"
2839
3074
2840
3075
##################################################################
2841
3076
2842
3077
if (not server_settings["zeroconf"]
2843
3078
and not (server_settings["port"]
2844
3079
or server_settings["socket"] != "")):
2845
3080
parser.error("Needs port or socket to work without Zeroconf")
2846
3081
2847
3082
# For convenience
2848
3083
debug = server_settings["debug"]
2849
3084
debuglevel = server_settings["debuglevel"]
2853
3088
stored_state_file)
2854
3089
foreground = server_settings["foreground"]
2855
3090
zeroconf = server_settings["zeroconf"]
2856
3091
2857
3092
if debug:
2858
3093
initlogger(debug, logging.DEBUG)
2859
3094
else:
2862
3097
else:
2863
3098
level = getattr(logging, debuglevel.upper())
2864
3099
initlogger(debug, level)
2865
3100
2866
3101
if server_settings["servicename"] != "Mandos":
2867
3102
syslogger.setFormatter(
2868
3103
logging.Formatter('Mandos ({}) [%(process)d]:'
2869
3104
' %(levelname)s: %(message)s'.format(
2870
3105
server_settings["servicename"])))
2871
3106
2872
3107
# Parse config file with clients
2873
client_config = configparser.SafeConfigParser(Client
2874
.client_defaults)
3108
client_config = configparser.ConfigParser(Client.client_defaults)
2875
3109
client_config.read(os.path.join(server_settings["configdir"],
2876
3110
"clients.conf"))
2877
3111
2878
3112
global mandos_dbus_service
2879
3113
mandos_dbus_service = None
2880
3114
2881
3115
socketfd = None
2882
3116
if server_settings["socket"] != "":
2883
3117
socketfd = server_settings["socket"]
2899
3133
except IOError as e:
2900
3134
logger.error("Could not open file %r", pidfilename,
2901
3135
exc_info=e)
2902
2903
for name in ("_mandos", "mandos", "nobody"):
3136
3137
for name, group in (("_mandos", "_mandos"),
3138
("mandos", "mandos"),
3139
("nobody", "nogroup")):
2904
3140
try:
2905
3141
uid = pwd.getpwnam(name).pw_uid
2906
gid = pwd.getpwnam(name).pw_gid
3142
gid = pwd.getpwnam(group).pw_gid
2907
3143
break
2908
3144
except KeyError:
2909
3145
continue
2913
3149
try:
2914
3150
os.setgid(gid)
2915
3151
os.setuid(uid)
3152
if debug:
3153
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3154
gid))
2916
3155
except OSError as error:
3156
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3157
.format(uid, gid, os.strerror(error.errno)))
2917
3158
if error.errno != errno.EPERM:
2918
3159
raise
2919
3160
2920
3161
if debug:
2921
3162
# Enable all possible GnuTLS debugging
2922
3163
2923
3164
# "Use a log level over 10 to enable all debugging options."
2924
3165
# - GnuTLS manual
2925
3166
gnutls.global_set_log_level(11)
2926
3167
2927
3168
@gnutls.log_func
2928
3169
def debug_gnutls(level, string):
2929
3170
logger.debug("GnuTLS: %s", string[:-1])
2930
3171
2931
3172
gnutls.global_set_log_function(debug_gnutls)
2932
3173
2933
3174
# Redirect stdin so all checkers get /dev/null
2934
3175
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2935
3176
os.dup2(null, sys.stdin.fileno())
2936
3177
if null > 2:
2937
3178
os.close(null)
2938
3179
2939
3180
# Need to fork before connecting to D-Bus
2940
3181
if not foreground:
2941
3182
# Close all input and output, do double fork, etc.
2942
3183
daemon()
2943
2944
# multiprocessing will use threads, so before we use gobject we
2945
# need to inform gobject that threads will be used.
2946
gobject.threads_init()
2947
3184
3185
if gi.version_info < (3, 10, 2):
3186
# multiprocessing will use threads, so before we use GLib we
3187
# need to inform GLib that threads will be used.
3188
GLib.threads_init()
3189
2948
3190
global main_loop
2949
3191
# From the Avahi example code
2950
3192
DBusGMainLoop(set_as_default=True)
2951
main_loop = gobject.MainLoop()
3193
main_loop = GLib.MainLoop()
2952
3194
bus = dbus.SystemBus()
2953
3195
# End of Avahi example code
2954
3196
if use_dbus:
2967
3209
if zeroconf:
2968
3210
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2969
3211
service = AvahiServiceToSyslog(
2970
name = server_settings["servicename"],
2971
servicetype = "_mandos._tcp",
2972
protocol = protocol,
2973
bus = bus)
3212
name=server_settings["servicename"],
3213
servicetype="_mandos._tcp",
3214
protocol=protocol,
3215
bus=bus)
2974
3216
if server_settings["interface"]:
2975
3217
service.interface = if_nametoindex(
2976
3218
server_settings["interface"].encode("utf-8"))
2977
3219
2978
3220
global multiprocessing_manager
2979
3221
multiprocessing_manager = multiprocessing.Manager()
2980
3222
2981
3223
client_class = Client
2982
3224
if use_dbus:
2983
client_class = functools.partial(ClientDBus, bus = bus)
2984
3225
client_class = functools.partial(ClientDBus, bus=bus)
3226
2985
3227
client_settings = Client.config_parser(client_config)
2986
3228
old_client_settings = {}
2987
3229
clients_data = {}
2988
3230
2989
3231
# This is used to redirect stdout and stderr for checker processes
2990
3232
global wnull
2991
wnull = open(os.devnull, "w") # A writable /dev/null
3233
wnull = open(os.devnull, "w") # A writable /dev/null
2992
3234
# Only used if server is running in foreground but not in debug
2993
3235
# mode
2994
3236
if debug or not foreground:
2995
3237
wnull.close()
2996
3238
2997
3239
# Get client data and settings from last running state.
2998
3240
if server_settings["restore"]:
2999
3241
try:
3000
3242
with open(stored_state_path, "rb") as stored_state:
3001
clients_data, old_client_settings = pickle.load(
3002
stored_state)
3243
if sys.version_info.major == 2:
3244
clients_data, old_client_settings = pickle.load(
3245
stored_state)
3246
else:
3247
bytes_clients_data, bytes_old_client_settings = (
3248
pickle.load(stored_state, encoding="bytes"))
3249
# Fix bytes to strings
3250
# clients_data
3251
# .keys()
3252
clients_data = {(key.decode("utf-8")
3253
if isinstance(key, bytes)
3254
else key): value
3255
for key, value in
3256
bytes_clients_data.items()}
3257
del bytes_clients_data
3258
for key in clients_data:
3259
value = {(k.decode("utf-8")
3260
if isinstance(k, bytes) else k): v
3261
for k, v in
3262
clients_data[key].items()}
3263
clients_data[key] = value
3264
# .client_structure
3265
value["client_structure"] = [
3266
(s.decode("utf-8")
3267
if isinstance(s, bytes)
3268
else s) for s in
3269
value["client_structure"]]
3270
# .name, .host, and .checker_command
3271
for k in ("name", "host", "checker_command"):
3272
if isinstance(value[k], bytes):
3273
value[k] = value[k].decode("utf-8")
3274
if "key_id" not in value:
3275
value["key_id"] = ""
3276
elif "fingerprint" not in value:
3277
value["fingerprint"] = ""
3278
# old_client_settings
3279
# .keys()
3280
old_client_settings = {
3281
(key.decode("utf-8")
3282
if isinstance(key, bytes)
3283
else key): value
3284
for key, value in
3285
bytes_old_client_settings.items()}
3286
del bytes_old_client_settings
3287
# .host and .checker_command
3288
for value in old_client_settings.values():
3289
for attribute in ("host", "checker_command"):
3290
if isinstance(value[attribute], bytes):
3291
value[attribute] = (value[attribute]
3292
.decode("utf-8"))
3003
3293
os.remove(stored_state_path)
3004
3294
except IOError as e:
3005
3295
if e.errno == errno.ENOENT:
3013
3303
logger.warning("Could not load persistent state: "
3014
3304
"EOFError:",
3015
3305
exc_info=e)
3016
3306
3017
3307
with PGPEngine() as pgp:
3018
3308
for client_name, client in clients_data.items():
3019
3309
# Skip removed clients
3020
3310
if client_name not in client_settings:
3021
3311
continue
3022
3312
3023
3313
# Decide which value to use after restoring saved state.
3024
3314
# We have three different values: Old config file,
3025
3315
# new config file, and saved state.
3036
3326
client[name] = value
3037
3327
except KeyError:
3038
3328
pass
3039
3329
3040
3330
# Clients who has passed its expire date can still be
3041
3331
# enabled if its last checker was successful. A Client
3042
3332
# whose checker succeeded before we stored its state is
3075
3365
client_name))
3076
3366
client["secret"] = (client_settings[client_name]
3077
3367
["secret"])
3078
3368
3079
3369
# Add/remove clients based on new changes made to config
3080
3370
for client_name in (set(old_client_settings)
3081
3371
- set(client_settings)):
3083
3373
for client_name in (set(client_settings)
3084
3374
- set(old_client_settings)):
3085
3375
clients_data[client_name] = client_settings[client_name]
3086
3376
3087
3377
# Create all client objects
3088
3378
for client_name, client in clients_data.items():
3089
3379
tcp_server.clients[client_name] = client_class(
3090
name = client_name,
3091
settings = client,
3092
server_settings = server_settings)
3093
3380
name=client_name,
3381
settings=client,
3382
server_settings=server_settings)
3383
3094
3384
if not tcp_server.clients:
3095
3385
logger.warning("No clients defined")
3096
3386
3097
3387
if not foreground:
3098
3388
if pidfile is not None:
3099
3389
pid = os.getpid()
3105
3395
pidfilename, pid)
3106
3396
del pidfile
3107
3397
del pidfilename
3108
3109
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
3110
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3111
3398
3399
for termsig in (signal.SIGHUP, signal.SIGTERM):
3400
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3401
lambda: main_loop.quit() and False)
3402
3112
3403
if use_dbus:
3113
3404
3114
3405
@alternate_dbus_interfaces(
3115
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3406
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3116
3407
class MandosDBusService(DBusObjectWithObjectManager):
3117
3408
"""A D-Bus proxy object"""
3118
3409
3119
3410
def __init__(self):
3120
3411
dbus.service.Object.__init__(self, bus, "/")
3121
3412
3122
3413
_interface = "se.recompile.Mandos"
3123
3414
3124
3415
@dbus.service.signal(_interface, signature="o")
3125
3416
def ClientAdded(self, objpath):
3126
3417
"D-Bus signal"
3127
3418
pass
3128
3419
3129
3420
@dbus.service.signal(_interface, signature="ss")
3130
def ClientNotFound(self, fingerprint, address):
3421
def ClientNotFound(self, key_id, address):
3131
3422
"D-Bus signal"
3132
3423
pass
3133
3424
3134
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3135
3426
"true"})
3136
3427
@dbus.service.signal(_interface, signature="os")
3137
3428
def ClientRemoved(self, objpath, name):
3138
3429
"D-Bus signal"
3139
3430
pass
3140
3431
3141
3432
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3142
3433
"true"})
3143
3434
@dbus.service.method(_interface, out_signature="ao")
3144
3435
def GetAllClients(self):
3145
3436
"D-Bus method"
3146
3437
return dbus.Array(c.dbus_object_path for c in
3147
tcp_server.clients.itervalues())
3148
3438
tcp_server.clients.values())
3439
3149
3440
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3150
3441
"true"})
3151
3442
@dbus.service.method(_interface,
3153
3444
def GetAllClientsWithProperties(self):
3154
3445
"D-Bus method"
3155
3446
return dbus.Dictionary(
3156
{ c.dbus_object_path: c.GetAll(
3447
{c.dbus_object_path: c.GetAll(
3157
3448
"se.recompile.Mandos.Client")
3158
for c in tcp_server.clients.itervalues() },
3449
for c in tcp_server.clients.values()},
3159
3450
signature="oa{sv}")
3160
3451
3161
3452
@dbus.service.method(_interface, in_signature="o")
3162
3453
def RemoveClient(self, object_path):
3163
3454
"D-Bus method"
3164
for c in tcp_server.clients.itervalues():
3455
for c in tcp_server.clients.values():
3165
3456
if c.dbus_object_path == object_path:
3166
3457
del tcp_server.clients[c.name]
3167
3458
c.remove_from_connection()
3171
3462
self.client_removed_signal(c)
3172
3463
return
3173
3464
raise KeyError(object_path)
3174
3465
3175
3466
del _interface
3176
3467
3177
3468
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3178
out_signature = "a{oa{sa{sv}}}")
3469
out_signature="a{oa{sa{sv}}}")
3179
3470
def GetManagedObjects(self):
3180
3471
"""D-Bus method"""
3181
3472
return dbus.Dictionary(
3182
{ client.dbus_object_path:
3183
dbus.Dictionary(
3184
{ interface: client.GetAll(interface)
3185
for interface in
3186
client._get_all_interface_names()})
3187
for client in tcp_server.clients.values()})
3188
3473
{client.dbus_object_path:
3474
dbus.Dictionary(
3475
{interface: client.GetAll(interface)
3476
for interface in
3477
client._get_all_interface_names()})
3478
for client in tcp_server.clients.values()})
3479
3189
3480
def client_added_signal(self, client):
3190
3481
"""Send the new standard signal and the old signal"""
3191
3482
if use_dbus:
3193
3484
self.InterfacesAdded(
3194
3485
client.dbus_object_path,
3195
3486
dbus.Dictionary(
3196
{ interface: client.GetAll(interface)
3197
for interface in
3198
client._get_all_interface_names()}))
3487
{interface: client.GetAll(interface)
3488
for interface in
3489
client._get_all_interface_names()}))
3199
3490
# Old signal
3200
3491
self.ClientAdded(client.dbus_object_path)
3201
3492
3202
3493
def client_removed_signal(self, client):
3203
3494
"""Send the new standard signal and the old signal"""
3204
3495
if use_dbus:
3209
3500
# Old signal
3210
3501
self.ClientRemoved(client.dbus_object_path,
3211
3502
client.name)
3212
3503
3213
3504
mandos_dbus_service = MandosDBusService()
3214
3505
3506
# Save modules to variables to exempt the modules from being
3507
# unloaded before the function registered with atexit() is run.
3508
mp = multiprocessing
3509
wn = wnull
3510
3215
3511
def cleanup():
3216
3512
"Cleanup function; run on exit"
3217
3513
if zeroconf:
3218
3514
service.cleanup()
3219
3220
multiprocessing.active_children()
3221
wnull.close()
3515
3516
mp.active_children()
3517
wn.close()
3222
3518
if not (tcp_server.clients or client_settings):
3223
3519
return
3224
3520
3225
3521
# Store client before exiting. Secrets are encrypted with key
3226
3522
# based on what config file has. If config file is
3227
3523
# removed/edited, old secret will thus be unrecovable.
3228
3524
clients = {}
3229
3525
with PGPEngine() as pgp:
3230
for client in tcp_server.clients.itervalues():
3526
for client in tcp_server.clients.values():
3231
3527
key = client_settings[client.name]["secret"]
3232
3528
client.encrypted_secret = pgp.encrypt(client.secret,
3233
3529
key)
3234
3530
client_dict = {}
3235
3531
3236
3532
# A list of attributes that can not be pickled
3237
3533
# + secret.
3238
exclude = { "bus", "changedstate", "secret",
3239
"checker", "server_settings" }
3534
exclude = {"bus", "changedstate", "secret",
3535
"checker", "server_settings"}
3240
3536
for name, typ in inspect.getmembers(dbus.service
3241
3537
.Object):
3242
3538
exclude.add(name)
3243
3539
3244
3540
client_dict["encrypted_secret"] = (client
3245
3541
.encrypted_secret)
3246
3542
for attr in client.client_structure:
3247
3543
if attr not in exclude:
3248
3544
client_dict[attr] = getattr(client, attr)
3249
3545
3250
3546
clients[client.name] = client_dict
3251
3547
del client_settings[client.name]["secret"]
3252
3548
3253
3549
try:
3254
3550
with tempfile.NamedTemporaryFile(
3255
3551
mode='wb',
3257
3553
prefix='clients-',
3258
3554
dir=os.path.dirname(stored_state_path),
3259
3555
delete=False) as stored_state:
3260
pickle.dump((clients, client_settings), stored_state)
3556
pickle.dump((clients, client_settings), stored_state,
3557
protocol=2)
3261
3558
tempname = stored_state.name
3262
3559
os.rename(tempname, stored_state_path)
3263
3560
except (IOError, OSError) as e:
3273
3570
logger.warning("Could not save persistent state:",
3274
3571
exc_info=e)
3275
3572
raise
3276
3573
3277
3574
# Delete all clients, and settings from config
3278
3575
while tcp_server.clients:
3279
3576
name, client = tcp_server.clients.popitem()
3285
3582
if use_dbus:
3286
3583
mandos_dbus_service.client_removed_signal(client)
3287
3584
client_settings.clear()
3288
3585
3289
3586
atexit.register(cleanup)
3290
3291
for client in tcp_server.clients.itervalues():
3587
3588
for client in tcp_server.clients.values():
3292
3589
if use_dbus:
3293
3590
# Emit D-Bus signal for adding
3294
3591
mandos_dbus_service.client_added_signal(client)
3295
3592
# Need to initiate checking of clients
3296
3593
if client.enabled:
3297
3594
client.init_checker()
3298
3595
3299
3596
tcp_server.enable()
3300
3597
tcp_server.server_activate()
3301
3598
3302
3599
# Find out what port we got
3303
3600
if zeroconf:
3304
3601
service.port = tcp_server.socket.getsockname()[1]
3309
3606
else: # IPv4
3310
3607
logger.info("Now listening on address %r, port %d",
3311
3608
*tcp_server.socket.getsockname())
3312
3313
#service.interface = tcp_server.socket.getsockname()[3]
3314
3609
3610
# service.interface = tcp_server.socket.getsockname()[3]
3611
3315
3612
try:
3316
3613
if zeroconf:
3317
3614
# From the Avahi example code
3322
3619
cleanup()
3323
3620
sys.exit(1)
3324
3621
# End of Avahi example code
3325
3326
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3327
lambda *args, **kwargs:
3328
(tcp_server.handle_request
3329
(*args[2:], **kwargs) or True))
3330
3622
3623
GLib.io_add_watch(
3624
GLib.IOChannel.unix_new(tcp_server.fileno()),
3625
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3626
lambda *args, **kwargs: (tcp_server.handle_request
3627
(*args[2:], **kwargs) or True))
3628
3331
3629
logger.debug("Starting main loop")
3332
3630
main_loop.run()
3333
3631
except AvahiError as error:
3342
3640
# Must run before the D-Bus bus name gets deregistered
3343
3641
cleanup()
3344
3642
3643
3644
def should_only_run_tests():
3645
parser = argparse.ArgumentParser(add_help=False)
3646
parser.add_argument("--check", action='store_true')
3647
args, unknown_args = parser.parse_known_args()
3648
run_tests = args.check
3649
if run_tests:
3650
# Remove --check argument from sys.argv
3651
sys.argv[1:] = unknown_args
3652
return run_tests
3653
3654
# Add all tests from doctest strings
3655
def load_tests(loader, tests, none):
3656
import doctest
3657
tests.addTests(doctest.DocTestSuite())
3658
return tests
3345
3659
3346
3660
if __name__ == '__main__':
3347
main()
3661
try:
3662
if should_only_run_tests():
3663
# Call using ./mandos --check [--verbose]
3664
unittest.main()
3665
else:
3666
main()
3667
finally:
3668
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0