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- Committer: teddy at recompile
- Date: 2020-11-29 21:54:00 UTC
- Revision ID: teddy@recompile.se-20201129215400-1zkzmiadisa8whx2
Change URL of systemd "Password Agents" specification
The URL of the systemd "Password Agents" specification changed from
<https://www.freedesktop.org/wiki/Software/systemd/PasswordAgents> to
<https://systemd.io/PASSWORD_AGENTS/>.
* dracut-module/password-agent.c: Change URL in code comments.
* dracut-module/password-agent.xml: Change URL.
* intro.xml (SYSTEMD): - '' -
The URL of the systemd "Password Agents" specification changed from
<https://www.freedesktop.org/wiki/Software/systemd/PasswordAgents> to
<https://systemd.io/PASSWORD_AGENTS/>.
* dracut-module/password-agent.c: Change URL in code comments.
* dracut-module/password-agent.xml: Change URL.
* intro.xml (SYSTEMD): - '' -
- files added:
- debian/mandos-client.templates
- debian/tests
- dracut-module
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
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 © 2008-2016 Teddy Hogeborn
15
# Copyright © 2008-2016 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2020 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)
76
77
import itertools
77
78
import collections
78
79
import codecs
80
import unittest
81
import random
82
import shlex
79
83
80
84
import dbus
81
85
import dbus.service
82
try:
83
from gi.repository import GObject
84
except ImportError:
85
import gobject as GObject
86
import gi
87
from gi.repository import GLib
86
88
from dbus.mainloop.glib import DBusGMainLoop
87
89
import ctypes
88
90
import ctypes.util
89
91
import xml.dom.minidom
90
92
import inspect
91
93
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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
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113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
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# Try to find the value of SO_BINDTODEVICE:
119
try:
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# 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:
93
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SO_BINDTODEVICE = socket.SO_BINDTODEVICE
94
123
except AttributeError:
95
124
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
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from IN import SO_BINDTODEVICE
97
128
except ImportError:
98
SO_BINDTODEVICE = None
99
100
if sys.version_info.major == 2:
101
str = unicode
102
103
version = "1.7.5"
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,
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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
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if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.12"
104
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stored_state_file = "clients.pickle"
105
148
106
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logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
107
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syslogger = None
108
152
109
153
try:
110
154
if_nametoindex = ctypes.cdll.LoadLibrary(
111
155
ctypes.util.find_library("c")).if_nametoindex
112
156
except (OSError, AttributeError):
113
157
114
158
def if_nametoindex(interface):
115
159
"Get an interface index the hard way, i.e. using fcntl()"
116
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
139
183
140
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def initlogger(debug, level=logging.WARNING):
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"""init logger and add loglevel"""
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global syslogger
144
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syslogger = (logging.handlers.SysLogHandler(
145
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
146
address = "/dev/log"))
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
147
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syslogger.setFormatter(logging.Formatter
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('Mandos [%(process)d]: %(levelname)s:'
149
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' %(message)s'))
150
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logger.addHandler(syslogger)
151
195
152
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if debug:
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console = logging.StreamHandler()
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198
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
164
208
pass
165
209
166
210
167
class PGPEngine(object):
211
class PGPEngine:
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"""A simple class for OpenPGP symmetric encryption & decryption"""
169
213
170
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def __init__(self):
171
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self.tempdir = tempfile.mkdtemp(prefix="mandos-")
172
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self.gpg = "gpg"
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output = subprocess.check_output(["gpgconf"])
175
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for line in output.splitlines():
176
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name, text, path = line.split(b":")
177
if name == "gpg":
221
if name == b"gpg":
178
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self.gpg = path
179
223
break
180
224
except OSError as e:
183
227
self.gnupgargs = ['--batch',
184
228
'--homedir', self.tempdir,
185
229
'--force-mdc',
186
'--quiet',
187
'--no-use-agent']
188
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
189
235
def __enter__(self):
190
236
return self
191
237
192
238
def __exit__(self, exc_type, exc_value, traceback):
193
239
self._cleanup()
194
240
return False
195
241
196
242
def __del__(self):
197
243
self._cleanup()
198
244
199
245
def _cleanup(self):
200
246
if self.tempdir is not None:
201
247
# Delete contents of tempdir
202
248
for root, dirs, files in os.walk(self.tempdir,
203
topdown = False):
249
topdown=False):
204
250
for filename in files:
205
251
os.remove(os.path.join(root, filename))
206
252
for dirname in dirs:
208
254
# Remove tempdir
209
255
os.rmdir(self.tempdir)
210
256
self.tempdir = None
211
257
212
258
def password_encode(self, password):
213
259
# Passphrase can not be empty and can not contain newlines or
214
260
# NUL bytes. So we prefix it and hex encode it.
219
265
.replace(b"\n", b"\\n")
220
266
.replace(b"\0", b"\\x00"))
221
267
return encoded
222
268
223
269
def encrypt(self, data, password):
224
270
passphrase = self.password_encode(password)
225
271
with tempfile.NamedTemporaryFile(
230
276
'--passphrase-file',
231
277
passfile.name]
232
278
+ self.gnupgargs,
233
stdin = subprocess.PIPE,
234
stdout = subprocess.PIPE,
235
stderr = subprocess.PIPE)
236
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)
237
283
if proc.returncode != 0:
238
284
raise PGPError(err)
239
285
return ciphertext
240
286
241
287
def decrypt(self, data, password):
242
288
passphrase = self.password_encode(password)
243
289
with tempfile.NamedTemporaryFile(
244
dir = self.tempdir) as passfile:
290
dir=self.tempdir) as passfile:
245
291
passfile.write(passphrase)
246
292
passfile.flush()
247
293
proc = subprocess.Popen([self.gpg, '--decrypt',
248
294
'--passphrase-file',
249
295
passfile.name]
250
296
+ self.gnupgargs,
251
stdin = subprocess.PIPE,
252
stdout = subprocess.PIPE,
253
stderr = subprocess.PIPE)
254
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)
255
301
if proc.returncode != 0:
256
302
raise PGPError(err)
257
303
return decrypted_plaintext
258
304
305
259
306
# Pretend that we have an Avahi module
260
class Avahi(object):
261
"""This isn't so much a class as it is a module-like namespace.
262
It is instantiated once, and simulates having an Avahi module."""
263
IF_UNSPEC = -1 # avahi-common/address.h
264
PROTO_UNSPEC = -1 # avahi-common/address.h
265
PROTO_INET = 0 # avahi-common/address.h
266
PROTO_INET6 = 1 # avahi-common/address.h
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
267
313
DBUS_NAME = "org.freedesktop.Avahi"
268
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
269
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
270
316
DBUS_PATH_SERVER = "/"
271
def string_array_to_txt_array(self, t):
317
318
@staticmethod
319
def string_array_to_txt_array(t):
272
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
273
321
for s in t), signature="ay")
274
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
275
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
276
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
277
SERVER_INVALID = 0 # avahi-common/defs.h
278
SERVER_REGISTERING = 1 # avahi-common/defs.h
279
SERVER_RUNNING = 2 # avahi-common/defs.h
280
SERVER_COLLISION = 3 # avahi-common/defs.h
281
SERVER_FAILURE = 4 # avahi-common/defs.h
282
avahi = Avahi()
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
283
331
284
332
class AvahiError(Exception):
285
333
def __init__(self, value, *args, **kwargs):
296
344
pass
297
345
298
346
299
class AvahiService(object):
347
class AvahiService:
300
348
"""An Avahi (Zeroconf) service.
301
349
302
350
Attributes:
303
351
interface: integer; avahi.IF_UNSPEC or an interface index.
304
352
Used to optionally bind to the specified interface.
316
364
server: D-Bus Server
317
365
bus: dbus.SystemBus()
318
366
"""
319
367
320
368
def __init__(self,
321
interface = avahi.IF_UNSPEC,
322
name = None,
323
servicetype = None,
324
port = None,
325
TXT = None,
326
domain = "",
327
host = "",
328
max_renames = 32768,
329
protocol = avahi.PROTO_UNSPEC,
330
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):
331
379
self.interface = interface
332
380
self.name = name
333
381
self.type = servicetype
342
390
self.server = None
343
391
self.bus = bus
344
392
self.entry_group_state_changed_match = None
345
393
346
394
def rename(self, remove=True):
347
395
"""Derived from the Avahi example code"""
348
396
if self.rename_count >= self.max_renames:
368
416
logger.critical("D-Bus Exception", exc_info=error)
369
417
self.cleanup()
370
418
os._exit(1)
371
419
372
420
def remove(self):
373
421
"""Derived from the Avahi example code"""
374
422
if self.entry_group_state_changed_match is not None:
376
424
self.entry_group_state_changed_match = None
377
425
if self.group is not None:
378
426
self.group.Reset()
379
427
380
428
def add(self):
381
429
"""Derived from the Avahi example code"""
382
430
self.remove()
399
447
dbus.UInt16(self.port),
400
448
avahi.string_array_to_txt_array(self.TXT))
401
449
self.group.Commit()
402
450
403
451
def entry_group_state_changed(self, state, error):
404
452
"""Derived from the Avahi example code"""
405
453
logger.debug("Avahi entry group state change: %i", state)
406
454
407
455
if state == avahi.ENTRY_GROUP_ESTABLISHED:
408
456
logger.debug("Zeroconf service established.")
409
457
elif state == avahi.ENTRY_GROUP_COLLISION:
413
461
logger.critical("Avahi: Error in group state changed %s",
414
462
str(error))
415
463
raise AvahiGroupError("State changed: {!s}".format(error))
416
464
417
465
def cleanup(self):
418
466
"""Derived from the Avahi example code"""
419
467
if self.group is not None:
424
472
pass
425
473
self.group = None
426
474
self.remove()
427
475
428
476
def server_state_changed(self, state, error=None):
429
477
"""Derived from the Avahi example code"""
430
478
logger.debug("Avahi server state change: %i", state)
459
507
logger.debug("Unknown state: %r", state)
460
508
else:
461
509
logger.debug("Unknown state: %r: %r", state, error)
462
510
463
511
def activate(self):
464
512
"""Derived from the Avahi example code"""
465
513
if self.server is None:
476
524
class AvahiServiceToSyslog(AvahiService):
477
525
def rename(self, *args, **kwargs):
478
526
"""Add the new name to the syslog messages"""
479
ret = AvahiService.rename(self, *args, **kwargs)
527
ret = super(AvahiServiceToSyslog, self).rename(*args,
528
**kwargs)
480
529
syslogger.setFormatter(logging.Formatter(
481
530
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
482
531
.format(self.name)))
483
532
return ret
484
533
534
485
535
# Pretend that we have a GnuTLS module
486
class GnuTLS(object):
487
"""This isn't so much a class as it is a module-like namespace.
488
It is instantiated once, and simulates having a GnuTLS module."""
489
490
_library = ctypes.cdll.LoadLibrary(
491
ctypes.util.find_library("gnutls"))
492
_need_version = b"3.3.0"
493
def __init__(self):
494
# Need to use class name "GnuTLS" here, since this method is
495
# called before the assignment to the "gnutls" global variable
496
# happens.
497
if GnuTLS.check_version(self._need_version) is None:
498
raise GnuTLS.Error("Needs GnuTLS {} or later"
499
.format(self._need_version))
500
536
class gnutls:
537
"""This isn't so much a class as it is a module-like namespace."""
538
539
library = ctypes.util.find_library("gnutls")
540
if library is None:
541
library = ctypes.util.find_library("gnutls-deb0")
542
_library = ctypes.cdll.LoadLibrary(library)
543
del library
544
501
545
# Unless otherwise indicated, the constants and types below are
502
546
# all from the gnutls/gnutls.h C header file.
503
547
504
548
# Constants
505
549
E_SUCCESS = 0
506
550
E_INTERRUPTED = -52
507
551
E_AGAIN = -28
508
552
CRT_OPENPGP = 2
553
CRT_RAWPK = 3
509
554
CLIENT = 2
510
555
SHUT_RDWR = 0
511
556
CRD_CERTIFICATE = 1
512
557
E_NO_CERTIFICATE_FOUND = -49
558
X509_FMT_DER = 0
559
NO_TICKETS = 1<<10
560
ENABLE_RAWPK = 1<<18
561
CTYPE_PEERS = 3
562
KEYID_USE_SHA256 = 1 # gnutls/x509.h
513
563
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
514
564
515
565
# Types
516
566
class session_int(ctypes.Structure):
517
567
_fields_ = []
518
568
session_t = ctypes.POINTER(session_int)
569
519
570
class certificate_credentials_st(ctypes.Structure):
520
571
_fields_ = []
521
572
certificate_credentials_t = ctypes.POINTER(
522
573
certificate_credentials_st)
523
574
certificate_type_t = ctypes.c_int
575
524
576
class datum_t(ctypes.Structure):
525
577
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
526
578
('size', ctypes.c_uint)]
579
527
580
class openpgp_crt_int(ctypes.Structure):
528
581
_fields_ = []
529
582
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
530
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
583
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
531
584
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
532
585
credentials_type_t = ctypes.c_int
533
586
transport_ptr_t = ctypes.c_void_p
534
587
close_request_t = ctypes.c_int
535
588
536
589
# Exceptions
537
590
class Error(Exception):
538
# We need to use the class name "GnuTLS" here, since this
539
# exception might be raised from within GnuTLS.__init__,
540
# which is called before the assignment to the "gnutls"
541
# global variable has happened.
542
def __init__(self, message = None, code = None, args=()):
591
def __init__(self, message=None, code=None, args=()):
543
592
# Default usage is by a message string, but if a return
544
593
# code is passed, convert it to a string with
545
594
# gnutls.strerror()
546
595
self.code = code
547
596
if message is None and code is not None:
548
message = GnuTLS.strerror(code)
549
return super(GnuTLS.Error, self).__init__(
597
message = gnutls.strerror(code)
598
return super(gnutls.Error, self).__init__(
550
599
message, *args)
551
600
552
601
class CertificateSecurityError(Error):
553
602
pass
554
603
555
604
# Classes
556
class Credentials(object):
605
class Credentials:
557
606
def __init__(self):
558
607
self._c_object = gnutls.certificate_credentials_t()
559
608
gnutls.certificate_allocate_credentials(
560
609
ctypes.byref(self._c_object))
561
610
self.type = gnutls.CRD_CERTIFICATE
562
611
563
612
def __del__(self):
564
613
gnutls.certificate_free_credentials(self._c_object)
565
566
class ClientSession(object):
567
def __init__(self, socket, credentials = None):
614
615
class ClientSession:
616
def __init__(self, socket, credentials=None):
568
617
self._c_object = gnutls.session_t()
569
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
618
gnutls_flags = gnutls.CLIENT
619
if gnutls.check_version(b"3.5.6"):
620
gnutls_flags |= gnutls.NO_TICKETS
621
if gnutls.has_rawpk:
622
gnutls_flags |= gnutls.ENABLE_RAWPK
623
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
624
del gnutls_flags
570
625
gnutls.set_default_priority(self._c_object)
571
626
gnutls.transport_set_ptr(self._c_object, socket.fileno())
572
627
gnutls.handshake_set_private_extensions(self._c_object,
578
633
ctypes.cast(credentials._c_object,
579
634
ctypes.c_void_p))
580
635
self.credentials = credentials
581
636
582
637
def __del__(self):
583
638
gnutls.deinit(self._c_object)
584
639
585
640
def handshake(self):
586
641
return gnutls.handshake(self._c_object)
587
642
588
643
def send(self, data):
589
644
data = bytes(data)
590
645
data_len = len(data)
592
647
data_len -= gnutls.record_send(self._c_object,
593
648
data[-data_len:],
594
649
data_len)
595
650
596
651
def bye(self):
597
652
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
598
653
599
654
# Error handling functions
600
655
def _error_code(result):
601
656
"""A function to raise exceptions on errors, suitable
603
658
if result >= 0:
604
659
return result
605
660
if result == gnutls.E_NO_CERTIFICATE_FOUND:
606
raise gnutls.CertificateSecurityError(code = result)
607
raise gnutls.Error(code = result)
608
661
raise gnutls.CertificateSecurityError(code=result)
662
raise gnutls.Error(code=result)
663
609
664
def _retry_on_error(result, func, arguments):
610
665
"""A function to retry on some errors, suitable
611
666
for the 'errcheck' attribute on ctypes functions"""
614
669
return _error_code(result)
615
670
result = func(*arguments)
616
671
return result
617
672
618
673
# Unless otherwise indicated, the function declarations below are
619
674
# all from the gnutls/gnutls.h C header file.
620
675
621
676
# Functions
622
677
priority_set_direct = _library.gnutls_priority_set_direct
623
678
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
624
679
ctypes.POINTER(ctypes.c_char_p)]
625
680
priority_set_direct.restype = _error_code
626
681
627
682
init = _library.gnutls_init
628
683
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
629
684
init.restype = _error_code
630
685
631
686
set_default_priority = _library.gnutls_set_default_priority
632
687
set_default_priority.argtypes = [session_t]
633
688
set_default_priority.restype = _error_code
634
689
635
690
record_send = _library.gnutls_record_send
636
691
record_send.argtypes = [session_t, ctypes.c_void_p,
637
692
ctypes.c_size_t]
638
693
record_send.restype = ctypes.c_ssize_t
639
694
record_send.errcheck = _retry_on_error
640
695
641
696
certificate_allocate_credentials = (
642
697
_library.gnutls_certificate_allocate_credentials)
643
698
certificate_allocate_credentials.argtypes = [
644
699
ctypes.POINTER(certificate_credentials_t)]
645
700
certificate_allocate_credentials.restype = _error_code
646
701
647
702
certificate_free_credentials = (
648
703
_library.gnutls_certificate_free_credentials)
649
certificate_free_credentials.argtypes = [certificate_credentials_t]
704
certificate_free_credentials.argtypes = [
705
certificate_credentials_t]
650
706
certificate_free_credentials.restype = None
651
707
652
708
handshake_set_private_extensions = (
653
709
_library.gnutls_handshake_set_private_extensions)
654
710
handshake_set_private_extensions.argtypes = [session_t,
655
711
ctypes.c_int]
656
712
handshake_set_private_extensions.restype = None
657
713
658
714
credentials_set = _library.gnutls_credentials_set
659
715
credentials_set.argtypes = [session_t, credentials_type_t,
660
716
ctypes.c_void_p]
661
717
credentials_set.restype = _error_code
662
718
663
719
strerror = _library.gnutls_strerror
664
720
strerror.argtypes = [ctypes.c_int]
665
721
strerror.restype = ctypes.c_char_p
666
722
667
723
certificate_type_get = _library.gnutls_certificate_type_get
668
724
certificate_type_get.argtypes = [session_t]
669
725
certificate_type_get.restype = _error_code
670
726
671
727
certificate_get_peers = _library.gnutls_certificate_get_peers
672
728
certificate_get_peers.argtypes = [session_t,
673
729
ctypes.POINTER(ctypes.c_uint)]
674
730
certificate_get_peers.restype = ctypes.POINTER(datum_t)
675
731
676
732
global_set_log_level = _library.gnutls_global_set_log_level
677
733
global_set_log_level.argtypes = [ctypes.c_int]
678
734
global_set_log_level.restype = None
679
735
680
736
global_set_log_function = _library.gnutls_global_set_log_function
681
737
global_set_log_function.argtypes = [log_func]
682
738
global_set_log_function.restype = None
683
739
684
740
deinit = _library.gnutls_deinit
685
741
deinit.argtypes = [session_t]
686
742
deinit.restype = None
687
743
688
744
handshake = _library.gnutls_handshake
689
745
handshake.argtypes = [session_t]
690
746
handshake.restype = _error_code
691
747
handshake.errcheck = _retry_on_error
692
748
693
749
transport_set_ptr = _library.gnutls_transport_set_ptr
694
750
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
695
751
transport_set_ptr.restype = None
696
752
697
753
bye = _library.gnutls_bye
698
754
bye.argtypes = [session_t, close_request_t]
699
755
bye.restype = _error_code
700
756
bye.errcheck = _retry_on_error
701
757
702
758
check_version = _library.gnutls_check_version
703
759
check_version.argtypes = [ctypes.c_char_p]
704
760
check_version.restype = ctypes.c_char_p
705
706
# All the function declarations below are from gnutls/openpgp.h
707
708
openpgp_crt_init = _library.gnutls_openpgp_crt_init
709
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
710
openpgp_crt_init.restype = _error_code
711
712
openpgp_crt_import = _library.gnutls_openpgp_crt_import
713
openpgp_crt_import.argtypes = [openpgp_crt_t,
714
ctypes.POINTER(datum_t),
715
openpgp_crt_fmt_t]
716
openpgp_crt_import.restype = _error_code
717
718
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
719
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
720
ctypes.POINTER(ctypes.c_uint)]
721
openpgp_crt_verify_self.restype = _error_code
722
723
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
724
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
725
openpgp_crt_deinit.restype = None
726
727
openpgp_crt_get_fingerprint = (
728
_library.gnutls_openpgp_crt_get_fingerprint)
729
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
730
ctypes.c_void_p,
731
ctypes.POINTER(
732
ctypes.c_size_t)]
733
openpgp_crt_get_fingerprint.restype = _error_code
734
761
762
_need_version = b"3.3.0"
763
if check_version(_need_version) is None:
764
raise self.Error("Needs GnuTLS {} or later"
765
.format(_need_version))
766
767
_tls_rawpk_version = b"3.6.6"
768
has_rawpk = bool(check_version(_tls_rawpk_version))
769
770
if has_rawpk:
771
# Types
772
class pubkey_st(ctypes.Structure):
773
_fields = []
774
pubkey_t = ctypes.POINTER(pubkey_st)
775
776
x509_crt_fmt_t = ctypes.c_int
777
778
# All the function declarations below are from
779
# gnutls/abstract.h
780
pubkey_init = _library.gnutls_pubkey_init
781
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
782
pubkey_init.restype = _error_code
783
784
pubkey_import = _library.gnutls_pubkey_import
785
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
786
x509_crt_fmt_t]
787
pubkey_import.restype = _error_code
788
789
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
790
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
791
ctypes.POINTER(ctypes.c_ubyte),
792
ctypes.POINTER(ctypes.c_size_t)]
793
pubkey_get_key_id.restype = _error_code
794
795
pubkey_deinit = _library.gnutls_pubkey_deinit
796
pubkey_deinit.argtypes = [pubkey_t]
797
pubkey_deinit.restype = None
798
else:
799
# All the function declarations below are from
800
# gnutls/openpgp.h
801
802
openpgp_crt_init = _library.gnutls_openpgp_crt_init
803
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
804
openpgp_crt_init.restype = _error_code
805
806
openpgp_crt_import = _library.gnutls_openpgp_crt_import
807
openpgp_crt_import.argtypes = [openpgp_crt_t,
808
ctypes.POINTER(datum_t),
809
openpgp_crt_fmt_t]
810
openpgp_crt_import.restype = _error_code
811
812
openpgp_crt_verify_self = \
813
_library.gnutls_openpgp_crt_verify_self
814
openpgp_crt_verify_self.argtypes = [
815
openpgp_crt_t,
816
ctypes.c_uint,
817
ctypes.POINTER(ctypes.c_uint),
818
]
819
openpgp_crt_verify_self.restype = _error_code
820
821
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
822
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
823
openpgp_crt_deinit.restype = None
824
825
openpgp_crt_get_fingerprint = (
826
_library.gnutls_openpgp_crt_get_fingerprint)
827
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
828
ctypes.c_void_p,
829
ctypes.POINTER(
830
ctypes.c_size_t)]
831
openpgp_crt_get_fingerprint.restype = _error_code
832
833
if check_version(b"3.6.4"):
834
certificate_type_get2 = _library.gnutls_certificate_type_get2
835
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
836
certificate_type_get2.restype = _error_code
837
735
838
# Remove non-public functions
736
839
del _error_code, _retry_on_error
737
# Create the global "gnutls" object, simulating a module
738
gnutls = GnuTLS()
840
739
841
740
842
def call_pipe(connection, # : multiprocessing.Connection
741
843
func, *args, **kwargs):
742
844
"""This function is meant to be called by multiprocessing.Process
743
845
744
846
This function runs func(*args, **kwargs), and writes the resulting
745
847
return value on the provided multiprocessing.Connection.
746
848
"""
747
849
connection.send(func(*args, **kwargs))
748
850
connection.close()
749
851
750
class Client(object):
852
853
class Client:
751
854
"""A representation of a client host served by this server.
752
855
753
856
Attributes:
754
857
approved: bool(); 'None' if not yet approved/disapproved
755
858
approval_delay: datetime.timedelta(); Time to wait for approval
756
859
approval_duration: datetime.timedelta(); Duration of one approval
757
checker: subprocess.Popen(); a running checker process used
758
to see if the client lives.
759
'None' if no process is running.
760
checker_callback_tag: a GObject event source tag, or None
860
checker: multiprocessing.Process(); a running checker process used
861
to see if the client lives. 'None' if no process is
862
running.
863
checker_callback_tag: a GLib event source tag, or None
761
864
checker_command: string; External command which is run to check
762
865
if client lives. %() expansions are done at
763
866
runtime with vars(self) as dict, so that for
764
867
instance %(name)s can be used in the command.
765
checker_initiator_tag: a GObject event source tag, or None
868
checker_initiator_tag: a GLib event source tag, or None
766
869
created: datetime.datetime(); (UTC) object creation
767
870
client_structure: Object describing what attributes a client has
768
871
and is used for storing the client at exit
769
872
current_checker_command: string; current running checker_command
770
disable_initiator_tag: a GObject event source tag, or None
873
disable_initiator_tag: a GLib event source tag, or None
771
874
enabled: bool()
772
875
fingerprint: string (40 or 32 hexadecimal digits); used to
773
uniquely identify the client
876
uniquely identify an OpenPGP client
877
key_id: string (64 hexadecimal digits); used to uniquely identify
878
a client using raw public keys
774
879
host: string; available for use by the checker command
775
880
interval: datetime.timedelta(); How often to start a new checker
776
881
last_approval_request: datetime.datetime(); (UTC) or None
792
897
disabled, or None
793
898
server_settings: The server_settings dict from main()
794
899
"""
795
900
796
901
runtime_expansions = ("approval_delay", "approval_duration",
797
"created", "enabled", "expires",
902
"created", "enabled", "expires", "key_id",
798
903
"fingerprint", "host", "interval",
799
904
"last_approval_request", "last_checked_ok",
800
905
"last_enabled", "name", "timeout")
809
914
"approved_by_default": "True",
810
915
"enabled": "True",
811
916
}
812
917
813
918
@staticmethod
814
919
def config_parser(config):
815
920
"""Construct a new dict of client settings of this form:
822
927
for client_name in config.sections():
823
928
section = dict(config.items(client_name))
824
929
client = settings[client_name] = {}
825
930
826
931
client["host"] = section["host"]
827
932
# Reformat values from string types to Python types
828
933
client["approved_by_default"] = config.getboolean(
829
934
client_name, "approved_by_default")
830
935
client["enabled"] = config.getboolean(client_name,
831
936
"enabled")
832
833
# Uppercase and remove spaces from fingerprint for later
834
# comparison purposes with return value from the
835
# fingerprint() function
937
938
# Uppercase and remove spaces from key_id and fingerprint
939
# for later comparison purposes with return value from the
940
# key_id() and fingerprint() functions
941
client["key_id"] = (section.get("key_id", "").upper()
942
.replace(" ", ""))
836
943
client["fingerprint"] = (section["fingerprint"].upper()
837
944
.replace(" ", ""))
838
945
if "secret" in section:
859
966
client["last_approval_request"] = None
860
967
client["last_checked_ok"] = None
861
968
client["last_checker_status"] = -2
862
969
863
970
return settings
864
865
def __init__(self, settings, name = None, server_settings=None):
971
972
def __init__(self, settings, name=None, server_settings=None):
866
973
self.name = name
867
974
if server_settings is None:
868
975
server_settings = {}
870
977
# adding all client settings
871
978
for setting, value in settings.items():
872
979
setattr(self, setting, value)
873
980
874
981
if self.enabled:
875
982
if not hasattr(self, "last_enabled"):
876
983
self.last_enabled = datetime.datetime.utcnow()
880
987
else:
881
988
self.last_enabled = None
882
989
self.expires = None
883
990
884
991
logger.debug("Creating client %r", self.name)
992
logger.debug(" Key ID: %s", self.key_id)
885
993
logger.debug(" Fingerprint: %s", self.fingerprint)
886
994
self.created = settings.get("created",
887
995
datetime.datetime.utcnow())
888
996
889
997
# attributes specific for this server instance
890
998
self.checker = None
891
999
self.checker_initiator_tag = None
900
1008
for attr in self.__dict__.keys()
901
1009
if not attr.startswith("_")]
902
1010
self.client_structure.append("client_structure")
903
1011
904
1012
for name, t in inspect.getmembers(
905
1013
type(self), lambda obj: isinstance(obj, property)):
906
1014
if not name.startswith("_"):
907
1015
self.client_structure.append(name)
908
1016
909
1017
# Send notice to process children that client state has changed
910
1018
def send_changedstate(self):
911
1019
with self.changedstate:
912
1020
self.changedstate.notify_all()
913
1021
914
1022
def enable(self):
915
1023
"""Start this client's checker and timeout hooks"""
916
1024
if getattr(self, "enabled", False):
921
1029
self.last_enabled = datetime.datetime.utcnow()
922
1030
self.init_checker()
923
1031
self.send_changedstate()
924
1032
925
1033
def disable(self, quiet=True):
926
1034
"""Disable this client."""
927
1035
if not getattr(self, "enabled", False):
929
1037
if not quiet:
930
1038
logger.info("Disabling client %s", self.name)
931
1039
if getattr(self, "disable_initiator_tag", None) is not None:
932
GObject.source_remove(self.disable_initiator_tag)
1040
GLib.source_remove(self.disable_initiator_tag)
933
1041
self.disable_initiator_tag = None
934
1042
self.expires = None
935
1043
if getattr(self, "checker_initiator_tag", None) is not None:
936
GObject.source_remove(self.checker_initiator_tag)
1044
GLib.source_remove(self.checker_initiator_tag)
937
1045
self.checker_initiator_tag = None
938
1046
self.stop_checker()
939
1047
self.enabled = False
940
1048
if not quiet:
941
1049
self.send_changedstate()
942
# Do not run this again if called by a GObject.timeout_add
1050
# Do not run this again if called by a GLib.timeout_add
943
1051
return False
944
1052
945
1053
def __del__(self):
946
1054
self.disable()
947
1055
948
1056
def init_checker(self):
949
1057
# Schedule a new checker to be started an 'interval' from now,
950
1058
# and every interval from then on.
951
1059
if self.checker_initiator_tag is not None:
952
GObject.source_remove(self.checker_initiator_tag)
953
self.checker_initiator_tag = GObject.timeout_add(
954
int(self.interval.total_seconds() * 1000),
1060
GLib.source_remove(self.checker_initiator_tag)
1061
self.checker_initiator_tag = GLib.timeout_add(
1062
random.randrange(int(self.interval.total_seconds() * 1000
1063
+ 1)),
955
1064
self.start_checker)
956
1065
# Schedule a disable() when 'timeout' has passed
957
1066
if self.disable_initiator_tag is not None:
958
GObject.source_remove(self.disable_initiator_tag)
959
self.disable_initiator_tag = GObject.timeout_add(
1067
GLib.source_remove(self.disable_initiator_tag)
1068
self.disable_initiator_tag = GLib.timeout_add(
960
1069
int(self.timeout.total_seconds() * 1000), self.disable)
961
1070
# Also start a new checker *right now*.
962
1071
self.start_checker()
963
1072
964
1073
def checker_callback(self, source, condition, connection,
965
1074
command):
966
1075
"""The checker has completed, so take appropriate actions."""
967
self.checker_callback_tag = None
968
self.checker = None
969
1076
# Read return code from connection (see call_pipe)
970
1077
returncode = connection.recv()
971
1078
connection.close()
972
1079
if self.checker is not None:
1080
self.checker.join()
1081
self.checker_callback_tag = None
1082
self.checker = None
1083
973
1084
if returncode >= 0:
974
1085
self.last_checker_status = returncode
975
1086
self.last_checker_signal = None
985
1096
logger.warning("Checker for %(name)s crashed?",
986
1097
vars(self))
987
1098
return False
988
1099
989
1100
def checked_ok(self):
990
1101
"""Assert that the client has been seen, alive and well."""
991
1102
self.last_checked_ok = datetime.datetime.utcnow()
992
1103
self.last_checker_status = 0
993
1104
self.last_checker_signal = None
994
1105
self.bump_timeout()
995
1106
996
1107
def bump_timeout(self, timeout=None):
997
1108
"""Bump up the timeout for this client."""
998
1109
if timeout is None:
999
1110
timeout = self.timeout
1000
1111
if self.disable_initiator_tag is not None:
1001
GObject.source_remove(self.disable_initiator_tag)
1112
GLib.source_remove(self.disable_initiator_tag)
1002
1113
self.disable_initiator_tag = None
1003
1114
if getattr(self, "enabled", False):
1004
self.disable_initiator_tag = GObject.timeout_add(
1115
self.disable_initiator_tag = GLib.timeout_add(
1005
1116
int(timeout.total_seconds() * 1000), self.disable)
1006
1117
self.expires = datetime.datetime.utcnow() + timeout
1007
1118
1008
1119
def need_approval(self):
1009
1120
self.last_approval_request = datetime.datetime.utcnow()
1010
1121
1011
1122
def start_checker(self):
1012
1123
"""Start a new checker subprocess if one is not running.
1013
1124
1014
1125
If a checker already exists, leave it running and do
1015
1126
nothing."""
1016
1127
# The reason for not killing a running checker is that if we
1021
1132
# checkers alone, the checker would have to take more time
1022
1133
# than 'timeout' for the client to be disabled, which is as it
1023
1134
# should be.
1024
1135
1025
1136
if self.checker is not None and not self.checker.is_alive():
1026
1137
logger.warning("Checker was not alive; joining")
1027
1138
self.checker.join()
1030
1141
if self.checker is None:
1031
1142
# Escape attributes for the shell
1032
1143
escaped_attrs = {
1033
attr: re.escape(str(getattr(self, attr)))
1034
for attr in self.runtime_expansions }
1144
attr: shlex.quote(str(getattr(self, attr)))
1145
for attr in self.runtime_expansions}
1035
1146
try:
1036
1147
command = self.checker_command % escaped_attrs
1037
1148
except TypeError as error:
1049
1160
# The exception is when not debugging but nevertheless
1050
1161
# running in the foreground; use the previously
1051
1162
# created wnull.
1052
popen_args = { "close_fds": True,
1053
"shell": True,
1054
"cwd": "/" }
1163
popen_args = {"close_fds": True,
1164
"shell": True,
1165
"cwd": "/"}
1055
1166
if (not self.server_settings["debug"]
1056
1167
and self.server_settings["foreground"]):
1057
1168
popen_args.update({"stdout": wnull,
1058
"stderr": wnull })
1059
pipe = multiprocessing.Pipe(duplex = False)
1169
"stderr": wnull})
1170
pipe = multiprocessing.Pipe(duplex=False)
1060
1171
self.checker = multiprocessing.Process(
1061
target = call_pipe,
1062
args = (pipe[1], subprocess.call, command),
1063
kwargs = popen_args)
1172
target=call_pipe,
1173
args=(pipe[1], subprocess.call, command),
1174
kwargs=popen_args)
1064
1175
self.checker.start()
1065
self.checker_callback_tag = GObject.io_add_watch(
1066
pipe[0].fileno(), GObject.IO_IN,
1176
self.checker_callback_tag = GLib.io_add_watch(
1177
GLib.IOChannel.unix_new(pipe[0].fileno()),
1178
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1067
1179
self.checker_callback, pipe[0], command)
1068
# Re-run this periodically if run by GObject.timeout_add
1180
# Re-run this periodically if run by GLib.timeout_add
1069
1181
return True
1070
1182
1071
1183
def stop_checker(self):
1072
1184
"""Force the checker process, if any, to stop."""
1073
1185
if self.checker_callback_tag:
1074
GObject.source_remove(self.checker_callback_tag)
1186
GLib.source_remove(self.checker_callback_tag)
1075
1187
self.checker_callback_tag = None
1076
1188
if getattr(self, "checker", None) is None:
1077
1189
return
1086
1198
byte_arrays=False):
1087
1199
"""Decorators for marking methods of a DBusObjectWithProperties to
1088
1200
become properties on the D-Bus.
1089
1201
1090
1202
The decorated method will be called with no arguments by "Get"
1091
1203
and with one argument by "Set".
1092
1204
1093
1205
The parameters, where they are supported, are the same as
1094
1206
dbus.service.method, except there is only "signature", since the
1095
1207
type from Get() and the type sent to Set() is the same.
1099
1211
if byte_arrays and signature != "ay":
1100
1212
raise ValueError("Byte arrays not supported for non-'ay'"
1101
1213
" signature {!r}".format(signature))
1102
1214
1103
1215
def decorator(func):
1104
1216
func._dbus_is_property = True
1105
1217
func._dbus_interface = dbus_interface
1108
1220
func._dbus_name = func.__name__
1109
1221
if func._dbus_name.endswith("_dbus_property"):
1110
1222
func._dbus_name = func._dbus_name[:-14]
1111
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1223
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1112
1224
return func
1113
1225
1114
1226
return decorator
1115
1227
1116
1228
1117
1229
def dbus_interface_annotations(dbus_interface):
1118
1230
"""Decorator for marking functions returning interface annotations
1119
1231
1120
1232
Usage:
1121
1233
1122
1234
@dbus_interface_annotations("org.example.Interface")
1123
1235
def _foo(self): # Function name does not matter
1124
1236
return {"org.freedesktop.DBus.Deprecated": "true",
1125
1237
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1126
1238
"false"}
1127
1239
"""
1128
1240
1129
1241
def decorator(func):
1130
1242
func._dbus_is_interface = True
1131
1243
func._dbus_interface = dbus_interface
1132
1244
func._dbus_name = dbus_interface
1133
1245
return func
1134
1246
1135
1247
return decorator
1136
1248
1137
1249
1138
1250
def dbus_annotations(annotations):
1139
1251
"""Decorator to annotate D-Bus methods, signals or properties
1140
1252
Usage:
1141
1253
1142
1254
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1143
1255
"org.freedesktop.DBus.Property."
1144
1256
"EmitsChangedSignal": "false"})
1146
1258
access="r")
1147
1259
def Property_dbus_property(self):
1148
1260
return dbus.Boolean(False)
1149
1261
1150
1262
See also the DBusObjectWithAnnotations class.
1151
1263
"""
1152
1264
1153
1265
def decorator(func):
1154
1266
func._dbus_annotations = annotations
1155
1267
return func
1156
1268
1157
1269
return decorator
1158
1270
1159
1271
1177
1289
1178
1290
class DBusObjectWithAnnotations(dbus.service.Object):
1179
1291
"""A D-Bus object with annotations.
1180
1292
1181
1293
Classes inheriting from this can use the dbus_annotations
1182
1294
decorator to add annotations to methods or signals.
1183
1295
"""
1184
1296
1185
1297
@staticmethod
1186
1298
def _is_dbus_thing(thing):
1187
1299
"""Returns a function testing if an attribute is a D-Bus thing
1188
1300
1189
1301
If called like _is_dbus_thing("method") it returns a function
1190
1302
suitable for use as predicate to inspect.getmembers().
1191
1303
"""
1192
1304
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1193
1305
False)
1194
1306
1195
1307
def _get_all_dbus_things(self, thing):
1196
1308
"""Returns a generator of (name, attribute) pairs
1197
1309
"""
1200
1312
for cls in self.__class__.__mro__
1201
1313
for name, athing in
1202
1314
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1203
1315
1204
1316
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1205
out_signature = "s",
1206
path_keyword = 'object_path',
1207
connection_keyword = 'connection')
1317
out_signature="s",
1318
path_keyword='object_path',
1319
connection_keyword='connection')
1208
1320
def Introspect(self, object_path, connection):
1209
1321
"""Overloading of standard D-Bus method.
1210
1322
1211
1323
Inserts annotation tags on methods and signals.
1212
1324
"""
1213
1325
xmlstring = dbus.service.Object.Introspect(self, object_path,
1214
1326
connection)
1215
1327
try:
1216
1328
document = xml.dom.minidom.parseString(xmlstring)
1217
1329
1218
1330
for if_tag in document.getElementsByTagName("interface"):
1219
1331
# Add annotation tags
1220
1332
for typ in ("method", "signal"):
1247
1359
if_tag.appendChild(ann_tag)
1248
1360
# Fix argument name for the Introspect method itself
1249
1361
if (if_tag.getAttribute("name")
1250
== dbus.INTROSPECTABLE_IFACE):
1362
== dbus.INTROSPECTABLE_IFACE):
1251
1363
for cn in if_tag.getElementsByTagName("method"):
1252
1364
if cn.getAttribute("name") == "Introspect":
1253
1365
for arg in cn.getElementsByTagName("arg"):
1266
1378
1267
1379
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1268
1380
"""A D-Bus object with properties.
1269
1381
1270
1382
Classes inheriting from this can use the dbus_service_property
1271
1383
decorator to expose methods as D-Bus properties. It exposes the
1272
1384
standard Get(), Set(), and GetAll() methods on the D-Bus.
1273
1385
"""
1274
1386
1275
1387
def _get_dbus_property(self, interface_name, property_name):
1276
1388
"""Returns a bound method if one exists which is a D-Bus
1277
1389
property with the specified name and interface.
1282
1394
if (value._dbus_name == property_name
1283
1395
and value._dbus_interface == interface_name):
1284
1396
return value.__get__(self)
1285
1397
1286
1398
# No such property
1287
1399
raise DBusPropertyNotFound("{}:{}.{}".format(
1288
1400
self.dbus_object_path, interface_name, property_name))
1289
1401
1290
1402
@classmethod
1291
1403
def _get_all_interface_names(cls):
1292
1404
"""Get a sequence of all interfaces supported by an object"""
1295
1407
for x in (inspect.getmro(cls))
1296
1408
for attr in dir(x))
1297
1409
if name is not None)
1298
1410
1299
1411
@dbus.service.method(dbus.PROPERTIES_IFACE,
1300
1412
in_signature="ss",
1301
1413
out_signature="v")
1309
1421
if not hasattr(value, "variant_level"):
1310
1422
return value
1311
1423
return type(value)(value, variant_level=value.variant_level+1)
1312
1424
1313
1425
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1314
1426
def Set(self, interface_name, property_name, value):
1315
1427
"""Standard D-Bus property Set() method, see D-Bus standard.
1324
1436
raise ValueError("Byte arrays not supported for non-"
1325
1437
"'ay' signature {!r}"
1326
1438
.format(prop._dbus_signature))
1327
value = dbus.ByteArray(b''.join(chr(byte)
1328
for byte in value))
1439
value = dbus.ByteArray(bytes(value))
1329
1440
prop(value)
1330
1441
1331
1442
@dbus.service.method(dbus.PROPERTIES_IFACE,
1332
1443
in_signature="s",
1333
1444
out_signature="a{sv}")
1334
1445
def GetAll(self, interface_name):
1335
1446
"""Standard D-Bus property GetAll() method, see D-Bus
1336
1447
standard.
1337
1448
1338
1449
Note: Will not include properties with access="write".
1339
1450
"""
1340
1451
properties = {}
1351
1462
properties[name] = value
1352
1463
continue
1353
1464
properties[name] = type(value)(
1354
value, variant_level = value.variant_level + 1)
1465
value, variant_level=value.variant_level + 1)
1355
1466
return dbus.Dictionary(properties, signature="sv")
1356
1467
1357
1468
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1358
1469
def PropertiesChanged(self, interface_name, changed_properties,
1359
1470
invalidated_properties):
1361
1472
standard.
1362
1473
"""
1363
1474
pass
1364
1475
1365
1476
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1366
1477
out_signature="s",
1367
1478
path_keyword='object_path',
1368
1479
connection_keyword='connection')
1369
1480
def Introspect(self, object_path, connection):
1370
1481
"""Overloading of standard D-Bus method.
1371
1482
1372
1483
Inserts property tags and interface annotation tags.
1373
1484
"""
1374
1485
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1376
1487
connection)
1377
1488
try:
1378
1489
document = xml.dom.minidom.parseString(xmlstring)
1379
1490
1380
1491
def make_tag(document, name, prop):
1381
1492
e = document.createElement("property")
1382
1493
e.setAttribute("name", name)
1383
1494
e.setAttribute("type", prop._dbus_signature)
1384
1495
e.setAttribute("access", prop._dbus_access)
1385
1496
return e
1386
1497
1387
1498
for if_tag in document.getElementsByTagName("interface"):
1388
1499
# Add property tags
1389
1500
for tag in (make_tag(document, name, prop)
1431
1542
exc_info=error)
1432
1543
return xmlstring
1433
1544
1545
1434
1546
try:
1435
1547
dbus.OBJECT_MANAGER_IFACE
1436
1548
except AttributeError:
1437
1549
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1438
1550
1551
1439
1552
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1440
1553
"""A D-Bus object with an ObjectManager.
1441
1554
1442
1555
Classes inheriting from this exposes the standard
1443
1556
GetManagedObjects call and the InterfacesAdded and
1444
1557
InterfacesRemoved signals on the standard
1445
1558
"org.freedesktop.DBus.ObjectManager" interface.
1446
1559
1447
1560
Note: No signals are sent automatically; they must be sent
1448
1561
manually.
1449
1562
"""
1450
1563
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1451
out_signature = "a{oa{sa{sv}}}")
1564
out_signature="a{oa{sa{sv}}}")
1452
1565
def GetManagedObjects(self):
1453
1566
"""This function must be overridden"""
1454
1567
raise NotImplementedError()
1455
1568
1456
1569
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1457
signature = "oa{sa{sv}}")
1570
signature="oa{sa{sv}}")
1458
1571
def InterfacesAdded(self, object_path, interfaces_and_properties):
1459
1572
pass
1460
1461
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1573
1574
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1462
1575
def InterfacesRemoved(self, object_path, interfaces):
1463
1576
pass
1464
1577
1465
1578
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1466
out_signature = "s",
1467
path_keyword = 'object_path',
1468
connection_keyword = 'connection')
1579
out_signature="s",
1580
path_keyword='object_path',
1581
connection_keyword='connection')
1469
1582
def Introspect(self, object_path, connection):
1470
1583
"""Overloading of standard D-Bus method.
1471
1584
1472
1585
Override return argument name of GetManagedObjects to be
1473
1586
"objpath_interfaces_and_properties"
1474
1587
"""
1477
1590
connection)
1478
1591
try:
1479
1592
document = xml.dom.minidom.parseString(xmlstring)
1480
1593
1481
1594
for if_tag in document.getElementsByTagName("interface"):
1482
1595
# Fix argument name for the GetManagedObjects method
1483
1596
if (if_tag.getAttribute("name")
1484
== dbus.OBJECT_MANAGER_IFACE):
1597
== dbus.OBJECT_MANAGER_IFACE):
1485
1598
for cn in if_tag.getElementsByTagName("method"):
1486
1599
if (cn.getAttribute("name")
1487
1600
== "GetManagedObjects"):
1497
1610
except (AttributeError, xml.dom.DOMException,
1498
1611
xml.parsers.expat.ExpatError) as error:
1499
1612
logger.error("Failed to override Introspection method",
1500
exc_info = error)
1613
exc_info=error)
1501
1614
return xmlstring
1502
1615
1616
1503
1617
def datetime_to_dbus(dt, variant_level=0):
1504
1618
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1505
1619
if dt is None:
1506
return dbus.String("", variant_level = variant_level)
1620
return dbus.String("", variant_level=variant_level)
1507
1621
return dbus.String(dt.isoformat(), variant_level=variant_level)
1508
1622
1509
1623
1512
1626
dbus.service.Object, it will add alternate D-Bus attributes with
1513
1627
interface names according to the "alt_interface_names" mapping.
1514
1628
Usage:
1515
1629
1516
1630
@alternate_dbus_interfaces({"org.example.Interface":
1517
1631
"net.example.AlternateInterface"})
1518
1632
class SampleDBusObject(dbus.service.Object):
1519
1633
@dbus.service.method("org.example.Interface")
1520
1634
def SampleDBusMethod():
1521
1635
pass
1522
1636
1523
1637
The above "SampleDBusMethod" on "SampleDBusObject" will be
1524
1638
reachable via two interfaces: "org.example.Interface" and
1525
1639
"net.example.AlternateInterface", the latter of which will have
1526
1640
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1527
1641
"true", unless "deprecate" is passed with a False value.
1528
1642
1529
1643
This works for methods and signals, and also for D-Bus properties
1530
1644
(from DBusObjectWithProperties) and interfaces (from the
1531
1645
dbus_interface_annotations decorator).
1532
1646
"""
1533
1647
1534
1648
def wrapper(cls):
1535
1649
for orig_interface_name, alt_interface_name in (
1536
1650
alt_interface_names.items()):
1576
1690
attribute._dbus_annotations)
1577
1691
except AttributeError:
1578
1692
pass
1693
1579
1694
# Define a creator of a function to call both the
1580
1695
# original and alternate functions, so both the
1581
1696
# original and alternate signals gets sent when
1584
1699
"""This function is a scope container to pass
1585
1700
func1 and func2 to the "call_both" function
1586
1701
outside of its arguments"""
1587
1702
1588
1703
@functools.wraps(func2)
1589
1704
def call_both(*args, **kwargs):
1590
1705
"""This function will emit two D-Bus
1591
1706
signals by calling func1 and func2"""
1592
1707
func1(*args, **kwargs)
1593
1708
func2(*args, **kwargs)
1594
# Make wrapper function look like a D-Bus signal
1709
# Make wrapper function look like a D-Bus
1710
# signal
1595
1711
for name, attr in inspect.getmembers(func2):
1596
1712
if name.startswith("_dbus_"):
1597
1713
setattr(call_both, name, attr)
1598
1714
1599
1715
return call_both
1600
1716
# Create the "call_both" function and add it to
1601
1717
# the class
1647
1763
(copy_function(attribute)))
1648
1764
if deprecate:
1649
1765
# Deprecate all alternate interfaces
1650
iname="_AlternateDBusNames_interface_annotation{}"
1766
iname = "_AlternateDBusNames_interface_annotation{}"
1651
1767
for interface_name in interface_names:
1652
1768
1653
1769
@dbus_interface_annotations(interface_name)
1654
1770
def func(self):
1655
return { "org.freedesktop.DBus.Deprecated":
1656
"true" }
1771
return {"org.freedesktop.DBus.Deprecated":
1772
"true"}
1657
1773
# Find an unused name
1658
1774
for aname in (iname.format(i)
1659
1775
for i in itertools.count()):
1670
1786
cls = type("{}Alternate".format(cls.__name__),
1671
1787
(cls, ), attr)
1672
1788
return cls
1673
1789
1674
1790
return wrapper
1675
1791
1676
1792
1678
1794
"se.bsnet.fukt.Mandos"})
1679
1795
class ClientDBus(Client, DBusObjectWithProperties):
1680
1796
"""A Client class using D-Bus
1681
1797
1682
1798
Attributes:
1683
1799
dbus_object_path: dbus.ObjectPath
1684
1800
bus: dbus.SystemBus()
1685
1801
"""
1686
1802
1687
1803
runtime_expansions = (Client.runtime_expansions
1688
1804
+ ("dbus_object_path", ))
1689
1805
1690
1806
_interface = "se.recompile.Mandos.Client"
1691
1807
1692
1808
# dbus.service.Object doesn't use super(), so we can't either.
1693
1694
def __init__(self, bus = None, *args, **kwargs):
1809
1810
def __init__(self, bus=None, *args, **kwargs):
1695
1811
self.bus = bus
1696
1812
Client.__init__(self, *args, **kwargs)
1697
1813
# Only now, when this client is initialized, can it show up on
1703
1819
"/clients/" + client_object_name)
1704
1820
DBusObjectWithProperties.__init__(self, self.bus,
1705
1821
self.dbus_object_path)
1706
1822
1707
1823
def notifychangeproperty(transform_func, dbus_name,
1708
1824
type_func=lambda x: x,
1709
1825
variant_level=1,
1711
1827
_interface=_interface):
1712
1828
""" Modify a variable so that it's a property which announces
1713
1829
its changes to DBus.
1714
1830
1715
1831
transform_fun: Function that takes a value and a variant_level
1716
1832
and transforms it to a D-Bus type.
1717
1833
dbus_name: D-Bus name of the variable
1720
1836
variant_level: D-Bus variant level. Default: 1
1721
1837
"""
1722
1838
attrname = "_{}".format(dbus_name)
1723
1839
1724
1840
def setter(self, value):
1725
1841
if hasattr(self, "dbus_object_path"):
1726
1842
if (not hasattr(self, attrname) or
1733
1849
else:
1734
1850
dbus_value = transform_func(
1735
1851
type_func(value),
1736
variant_level = variant_level)
1852
variant_level=variant_level)
1737
1853
self.PropertyChanged(dbus.String(dbus_name),
1738
1854
dbus_value)
1739
1855
self.PropertiesChanged(
1740
1856
_interface,
1741
dbus.Dictionary({ dbus.String(dbus_name):
1742
dbus_value }),
1857
dbus.Dictionary({dbus.String(dbus_name):
1858
dbus_value}),
1743
1859
dbus.Array())
1744
1860
setattr(self, attrname, value)
1745
1861
1746
1862
return property(lambda self: getattr(self, attrname), setter)
1747
1863
1748
1864
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1749
1865
approvals_pending = notifychangeproperty(dbus.Boolean,
1750
1866
"ApprovalPending",
1751
type_func = bool)
1867
type_func=bool)
1752
1868
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1753
1869
last_enabled = notifychangeproperty(datetime_to_dbus,
1754
1870
"LastEnabled")
1755
1871
checker = notifychangeproperty(
1756
1872
dbus.Boolean, "CheckerRunning",
1757
type_func = lambda checker: checker is not None)
1873
type_func=lambda checker: checker is not None)
1758
1874
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1759
1875
"LastCheckedOK")
1760
1876
last_checker_status = notifychangeproperty(dbus.Int16,
1765
1881
"ApprovedByDefault")
1766
1882
approval_delay = notifychangeproperty(
1767
1883
dbus.UInt64, "ApprovalDelay",
1768
type_func = lambda td: td.total_seconds() * 1000)
1884
type_func=lambda td: td.total_seconds() * 1000)
1769
1885
approval_duration = notifychangeproperty(
1770
1886
dbus.UInt64, "ApprovalDuration",
1771
type_func = lambda td: td.total_seconds() * 1000)
1887
type_func=lambda td: td.total_seconds() * 1000)
1772
1888
host = notifychangeproperty(dbus.String, "Host")
1773
1889
timeout = notifychangeproperty(
1774
1890
dbus.UInt64, "Timeout",
1775
type_func = lambda td: td.total_seconds() * 1000)
1891
type_func=lambda td: td.total_seconds() * 1000)
1776
1892
extended_timeout = notifychangeproperty(
1777
1893
dbus.UInt64, "ExtendedTimeout",
1778
type_func = lambda td: td.total_seconds() * 1000)
1894
type_func=lambda td: td.total_seconds() * 1000)
1779
1895
interval = notifychangeproperty(
1780
1896
dbus.UInt64, "Interval",
1781
type_func = lambda td: td.total_seconds() * 1000)
1897
type_func=lambda td: td.total_seconds() * 1000)
1782
1898
checker_command = notifychangeproperty(dbus.String, "Checker")
1783
1899
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1784
1900
invalidate_only=True)
1785
1901
1786
1902
del notifychangeproperty
1787
1903
1788
1904
def __del__(self, *args, **kwargs):
1789
1905
try:
1790
1906
self.remove_from_connection()
1793
1909
if hasattr(DBusObjectWithProperties, "__del__"):
1794
1910
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1795
1911
Client.__del__(self, *args, **kwargs)
1796
1912
1797
1913
def checker_callback(self, source, condition,
1798
1914
connection, command, *args, **kwargs):
1799
1915
ret = Client.checker_callback(self, source, condition,
1815
1931
| self.last_checker_signal),
1816
1932
dbus.String(command))
1817
1933
return ret
1818
1934
1819
1935
def start_checker(self, *args, **kwargs):
1820
1936
old_checker_pid = getattr(self.checker, "pid", None)
1821
1937
r = Client.start_checker(self, *args, **kwargs)
1825
1941
# Emit D-Bus signal
1826
1942
self.CheckerStarted(self.current_checker_command)
1827
1943
return r
1828
1944
1829
1945
def _reset_approved(self):
1830
1946
self.approved = None
1831
1947
return False
1832
1948
1833
1949
def approve(self, value=True):
1834
1950
self.approved = value
1835
GObject.timeout_add(int(self.approval_duration.total_seconds()
1836
* 1000), self._reset_approved)
1951
GLib.timeout_add(int(self.approval_duration.total_seconds()
1952
* 1000), self._reset_approved)
1837
1953
self.send_changedstate()
1838
1839
## D-Bus methods, signals & properties
1840
1841
## Interfaces
1842
1843
## Signals
1844
1954
1955
# D-Bus methods, signals & properties
1956
1957
# Interfaces
1958
1959
# Signals
1960
1845
1961
# CheckerCompleted - signal
1846
1962
@dbus.service.signal(_interface, signature="nxs")
1847
1963
def CheckerCompleted(self, exitcode, waitstatus, command):
1848
1964
"D-Bus signal"
1849
1965
pass
1850
1966
1851
1967
# CheckerStarted - signal
1852
1968
@dbus.service.signal(_interface, signature="s")
1853
1969
def CheckerStarted(self, command):
1854
1970
"D-Bus signal"
1855
1971
pass
1856
1972
1857
1973
# PropertyChanged - signal
1858
1974
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1859
1975
@dbus.service.signal(_interface, signature="sv")
1860
1976
def PropertyChanged(self, property, value):
1861
1977
"D-Bus signal"
1862
1978
pass
1863
1979
1864
1980
# GotSecret - signal
1865
1981
@dbus.service.signal(_interface)
1866
1982
def GotSecret(self):
1869
1985
server to mandos-client
1870
1986
"""
1871
1987
pass
1872
1988
1873
1989
# Rejected - signal
1874
1990
@dbus.service.signal(_interface, signature="s")
1875
1991
def Rejected(self, reason):
1876
1992
"D-Bus signal"
1877
1993
pass
1878
1994
1879
1995
# NeedApproval - signal
1880
1996
@dbus.service.signal(_interface, signature="tb")
1881
1997
def NeedApproval(self, timeout, default):
1882
1998
"D-Bus signal"
1883
1999
return self.need_approval()
1884
1885
## Methods
1886
2000
2001
# Methods
2002
1887
2003
# Approve - method
1888
2004
@dbus.service.method(_interface, in_signature="b")
1889
2005
def Approve(self, value):
1890
2006
self.approve(value)
1891
2007
1892
2008
# CheckedOK - method
1893
2009
@dbus.service.method(_interface)
1894
2010
def CheckedOK(self):
1895
2011
self.checked_ok()
1896
2012
1897
2013
# Enable - method
1898
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1899
2015
@dbus.service.method(_interface)
1900
2016
def Enable(self):
1901
2017
"D-Bus method"
1902
2018
self.enable()
1903
2019
1904
2020
# StartChecker - method
1905
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1906
2022
@dbus.service.method(_interface)
1907
2023
def StartChecker(self):
1908
2024
"D-Bus method"
1909
2025
self.start_checker()
1910
2026
1911
2027
# Disable - method
1912
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1913
2029
@dbus.service.method(_interface)
1914
2030
def Disable(self):
1915
2031
"D-Bus method"
1916
2032
self.disable()
1917
2033
1918
2034
# StopChecker - method
1919
2035
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1920
2036
@dbus.service.method(_interface)
1921
2037
def StopChecker(self):
1922
2038
self.stop_checker()
1923
1924
## Properties
1925
2039
2040
# Properties
2041
1926
2042
# ApprovalPending - property
1927
2043
@dbus_service_property(_interface, signature="b", access="read")
1928
2044
def ApprovalPending_dbus_property(self):
1929
2045
return dbus.Boolean(bool(self.approvals_pending))
1930
2046
1931
2047
# ApprovedByDefault - property
1932
2048
@dbus_service_property(_interface,
1933
2049
signature="b",
1936
2052
if value is None: # get
1937
2053
return dbus.Boolean(self.approved_by_default)
1938
2054
self.approved_by_default = bool(value)
1939
2055
1940
2056
# ApprovalDelay - property
1941
2057
@dbus_service_property(_interface,
1942
2058
signature="t",
1946
2062
return dbus.UInt64(self.approval_delay.total_seconds()
1947
2063
* 1000)
1948
2064
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1949
2065
1950
2066
# ApprovalDuration - property
1951
2067
@dbus_service_property(_interface,
1952
2068
signature="t",
1956
2072
return dbus.UInt64(self.approval_duration.total_seconds()
1957
2073
* 1000)
1958
2074
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1959
2075
1960
2076
# Name - property
1961
2077
@dbus_annotations(
1962
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1963
2079
@dbus_service_property(_interface, signature="s", access="read")
1964
2080
def Name_dbus_property(self):
1965
2081
return dbus.String(self.name)
1966
2082
2083
# KeyID - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
@dbus_service_property(_interface, signature="s", access="read")
2087
def KeyID_dbus_property(self):
2088
return dbus.String(self.key_id)
2089
1967
2090
# Fingerprint - property
1968
2091
@dbus_annotations(
1969
2092
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1970
2093
@dbus_service_property(_interface, signature="s", access="read")
1971
2094
def Fingerprint_dbus_property(self):
1972
2095
return dbus.String(self.fingerprint)
1973
2096
1974
2097
# Host - property
1975
2098
@dbus_service_property(_interface,
1976
2099
signature="s",
1979
2102
if value is None: # get
1980
2103
return dbus.String(self.host)
1981
2104
self.host = str(value)
1982
2105
1983
2106
# Created - property
1984
2107
@dbus_annotations(
1985
2108
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1986
2109
@dbus_service_property(_interface, signature="s", access="read")
1987
2110
def Created_dbus_property(self):
1988
2111
return datetime_to_dbus(self.created)
1989
2112
1990
2113
# LastEnabled - property
1991
2114
@dbus_service_property(_interface, signature="s", access="read")
1992
2115
def LastEnabled_dbus_property(self):
1993
2116
return datetime_to_dbus(self.last_enabled)
1994
2117
1995
2118
# Enabled - property
1996
2119
@dbus_service_property(_interface,
1997
2120
signature="b",
2003
2126
self.enable()
2004
2127
else:
2005
2128
self.disable()
2006
2129
2007
2130
# LastCheckedOK - property
2008
2131
@dbus_service_property(_interface,
2009
2132
signature="s",
2013
2136
self.checked_ok()
2014
2137
return
2015
2138
return datetime_to_dbus(self.last_checked_ok)
2016
2139
2017
2140
# LastCheckerStatus - property
2018
2141
@dbus_service_property(_interface, signature="n", access="read")
2019
2142
def LastCheckerStatus_dbus_property(self):
2020
2143
return dbus.Int16(self.last_checker_status)
2021
2144
2022
2145
# Expires - property
2023
2146
@dbus_service_property(_interface, signature="s", access="read")
2024
2147
def Expires_dbus_property(self):
2025
2148
return datetime_to_dbus(self.expires)
2026
2149
2027
2150
# LastApprovalRequest - property
2028
2151
@dbus_service_property(_interface, signature="s", access="read")
2029
2152
def LastApprovalRequest_dbus_property(self):
2030
2153
return datetime_to_dbus(self.last_approval_request)
2031
2154
2032
2155
# Timeout - property
2033
2156
@dbus_service_property(_interface,
2034
2157
signature="t",
2049
2172
if (getattr(self, "disable_initiator_tag", None)
2050
2173
is None):
2051
2174
return
2052
GObject.source_remove(self.disable_initiator_tag)
2053
self.disable_initiator_tag = GObject.timeout_add(
2175
GLib.source_remove(self.disable_initiator_tag)
2176
self.disable_initiator_tag = GLib.timeout_add(
2054
2177
int((self.expires - now).total_seconds() * 1000),
2055
2178
self.disable)
2056
2179
2057
2180
# ExtendedTimeout - property
2058
2181
@dbus_service_property(_interface,
2059
2182
signature="t",
2063
2186
return dbus.UInt64(self.extended_timeout.total_seconds()
2064
2187
* 1000)
2065
2188
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2066
2189
2067
2190
# Interval - property
2068
2191
@dbus_service_property(_interface,
2069
2192
signature="t",
2076
2199
return
2077
2200
if self.enabled:
2078
2201
# Reschedule checker run
2079
GObject.source_remove(self.checker_initiator_tag)
2080
self.checker_initiator_tag = GObject.timeout_add(
2202
GLib.source_remove(self.checker_initiator_tag)
2203
self.checker_initiator_tag = GLib.timeout_add(
2081
2204
value, self.start_checker)
2082
self.start_checker() # Start one now, too
2083
2205
self.start_checker() # Start one now, too
2206
2084
2207
# Checker - property
2085
2208
@dbus_service_property(_interface,
2086
2209
signature="s",
2089
2212
if value is None: # get
2090
2213
return dbus.String(self.checker_command)
2091
2214
self.checker_command = str(value)
2092
2215
2093
2216
# CheckerRunning - property
2094
2217
@dbus_service_property(_interface,
2095
2218
signature="b",
2101
2224
self.start_checker()
2102
2225
else:
2103
2226
self.stop_checker()
2104
2227
2105
2228
# ObjectPath - property
2106
2229
@dbus_annotations(
2107
2230
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2108
2231
"org.freedesktop.DBus.Deprecated": "true"})
2109
2232
@dbus_service_property(_interface, signature="o", access="read")
2110
2233
def ObjectPath_dbus_property(self):
2111
return self.dbus_object_path # is already a dbus.ObjectPath
2112
2234
return self.dbus_object_path # is already a dbus.ObjectPath
2235
2113
2236
# Secret = property
2114
2237
@dbus_annotations(
2115
2238
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2120
2243
byte_arrays=True)
2121
2244
def Secret_dbus_property(self, value):
2122
2245
self.secret = bytes(value)
2123
2246
2124
2247
del _interface
2125
2248
2126
2249
2127
class ProxyClient(object):
2128
def __init__(self, child_pipe, fpr, address):
2250
class ProxyClient:
2251
def __init__(self, child_pipe, key_id, fpr, address):
2129
2252
self._pipe = child_pipe
2130
self._pipe.send(('init', fpr, address))
2253
self._pipe.send(('init', key_id, fpr, address))
2131
2254
if not self._pipe.recv():
2132
raise KeyError(fpr)
2133
2255
raise KeyError(key_id or fpr)
2256
2134
2257
def __getattribute__(self, name):
2135
2258
if name == '_pipe':
2136
2259
return super(ProxyClient, self).__getattribute__(name)
2139
2262
if data[0] == 'data':
2140
2263
return data[1]
2141
2264
if data[0] == 'function':
2142
2265
2143
2266
def func(*args, **kwargs):
2144
2267
self._pipe.send(('funcall', name, args, kwargs))
2145
2268
return self._pipe.recv()[1]
2146
2269
2147
2270
return func
2148
2271
2149
2272
def __setattr__(self, name, value):
2150
2273
if name == '_pipe':
2151
2274
return super(ProxyClient, self).__setattr__(name, value)
2154
2277
2155
2278
class ClientHandler(socketserver.BaseRequestHandler, object):
2156
2279
"""A class to handle client connections.
2157
2280
2158
2281
Instantiated once for each connection to handle it.
2159
2282
Note: This will run in its own forked process."""
2160
2283
2161
2284
def handle(self):
2162
2285
with contextlib.closing(self.server.child_pipe) as child_pipe:
2163
2286
logger.info("TCP connection from: %s",
2164
2287
str(self.client_address))
2165
2288
logger.debug("Pipe FD: %d",
2166
2289
self.server.child_pipe.fileno())
2167
2290
2168
2291
session = gnutls.ClientSession(self.request)
2169
2170
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
2171
# "+AES-256-CBC", "+SHA1",
2172
# "+COMP-NULL", "+CTYPE-OPENPGP",
2173
# "+DHE-DSS"))
2292
2293
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2294
# "+AES-256-CBC", "+SHA1",
2295
# "+COMP-NULL", "+CTYPE-OPENPGP",
2296
# "+DHE-DSS"))
2174
2297
# Use a fallback default, since this MUST be set.
2175
2298
priority = self.server.gnutls_priority
2176
2299
if priority is None:
2177
2300
priority = "NORMAL"
2178
gnutls.priority_set_direct(session._c_object, priority,
2301
gnutls.priority_set_direct(session._c_object,
2302
priority.encode("utf-8"),
2179
2303
None)
2180
2304
2181
2305
# Start communication using the Mandos protocol
2182
2306
# Get protocol number
2183
2307
line = self.request.makefile().readline()
2188
2312
except (ValueError, IndexError, RuntimeError) as error:
2189
2313
logger.error("Unknown protocol version: %s", error)
2190
2314
return
2191
2315
2192
2316
# Start GnuTLS connection
2193
2317
try:
2194
2318
session.handshake()
2198
2322
# established. Just abandon the request.
2199
2323
return
2200
2324
logger.debug("Handshake succeeded")
2201
2325
2202
2326
approval_required = False
2203
2327
try:
2204
try:
2205
fpr = self.fingerprint(
2206
self.peer_certificate(session))
2207
except (TypeError, gnutls.Error) as error:
2208
logger.warning("Bad certificate: %s", error)
2209
return
2210
logger.debug("Fingerprint: %s", fpr)
2211
2212
try:
2213
client = ProxyClient(child_pipe, fpr,
2328
if gnutls.has_rawpk:
2329
fpr = b""
2330
try:
2331
key_id = self.key_id(
2332
self.peer_certificate(session))
2333
except (TypeError, gnutls.Error) as error:
2334
logger.warning("Bad certificate: %s", error)
2335
return
2336
logger.debug("Key ID: %s", key_id)
2337
2338
else:
2339
key_id = b""
2340
try:
2341
fpr = self.fingerprint(
2342
self.peer_certificate(session))
2343
except (TypeError, gnutls.Error) as error:
2344
logger.warning("Bad certificate: %s", error)
2345
return
2346
logger.debug("Fingerprint: %s", fpr)
2347
2348
try:
2349
client = ProxyClient(child_pipe, key_id, fpr,
2214
2350
self.client_address)
2215
2351
except KeyError:
2216
2352
return
2217
2353
2218
2354
if client.approval_delay:
2219
2355
delay = client.approval_delay
2220
2356
client.approvals_pending += 1
2221
2357
approval_required = True
2222
2358
2223
2359
while True:
2224
2360
if not client.enabled:
2225
2361
logger.info("Client %s is disabled",
2228
2364
# Emit D-Bus signal
2229
2365
client.Rejected("Disabled")
2230
2366
return
2231
2367
2232
2368
if client.approved or not client.approval_delay:
2233
#We are approved or approval is disabled
2369
# We are approved or approval is disabled
2234
2370
break
2235
2371
elif client.approved is None:
2236
2372
logger.info("Client %s needs approval",
2247
2383
# Emit D-Bus signal
2248
2384
client.Rejected("Denied")
2249
2385
return
2250
2251
#wait until timeout or approved
2386
2387
# wait until timeout or approved
2252
2388
time = datetime.datetime.now()
2253
2389
client.changedstate.acquire()
2254
2390
client.changedstate.wait(delay.total_seconds())
2267
2403
break
2268
2404
else:
2269
2405
delay -= time2 - time
2270
2406
2271
2407
try:
2272
2408
session.send(client.secret)
2273
2409
except gnutls.Error as error:
2274
2410
logger.warning("gnutls send failed",
2275
exc_info = error)
2411
exc_info=error)
2276
2412
return
2277
2413
2278
2414
logger.info("Sending secret to %s", client.name)
2279
2415
# bump the timeout using extended_timeout
2280
2416
client.bump_timeout(client.extended_timeout)
2281
2417
if self.server.use_dbus:
2282
2418
# Emit D-Bus signal
2283
2419
client.GotSecret()
2284
2420
2285
2421
finally:
2286
2422
if approval_required:
2287
2423
client.approvals_pending -= 1
2290
2426
except gnutls.Error as error:
2291
2427
logger.warning("GnuTLS bye failed",
2292
2428
exc_info=error)
2293
2429
2294
2430
@staticmethod
2295
2431
def peer_certificate(session):
2296
"Return the peer's OpenPGP certificate as a bytestring"
2297
# If not an OpenPGP certificate...
2298
if (gnutls.certificate_type_get(session._c_object)
2299
!= gnutls.CRT_OPENPGP):
2432
"Return the peer's certificate as a bytestring"
2433
try:
2434
cert_type = gnutls.certificate_type_get2(session._c_object,
2435
gnutls.CTYPE_PEERS)
2436
except AttributeError:
2437
cert_type = gnutls.certificate_type_get(session._c_object)
2438
if gnutls.has_rawpk:
2439
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2440
else:
2441
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2442
# If not a valid certificate type...
2443
if cert_type not in valid_cert_types:
2444
logger.info("Cert type %r not in %r", cert_type,
2445
valid_cert_types)
2300
2446
# ...return invalid data
2301
2447
return b""
2302
2448
list_size = ctypes.c_uint(1)
2308
2454
return None
2309
2455
cert = cert_list[0]
2310
2456
return ctypes.string_at(cert.data, cert.size)
2311
2457
2458
@staticmethod
2459
def key_id(certificate):
2460
"Convert a certificate bytestring to a hexdigit key ID"
2461
# New GnuTLS "datum" with the public key
2462
datum = gnutls.datum_t(
2463
ctypes.cast(ctypes.c_char_p(certificate),
2464
ctypes.POINTER(ctypes.c_ubyte)),
2465
ctypes.c_uint(len(certificate)))
2466
# XXX all these need to be created in the gnutls "module"
2467
# New empty GnuTLS certificate
2468
pubkey = gnutls.pubkey_t()
2469
gnutls.pubkey_init(ctypes.byref(pubkey))
2470
# Import the raw public key into the certificate
2471
gnutls.pubkey_import(pubkey,
2472
ctypes.byref(datum),
2473
gnutls.X509_FMT_DER)
2474
# New buffer for the key ID
2475
buf = ctypes.create_string_buffer(32)
2476
buf_len = ctypes.c_size_t(len(buf))
2477
# Get the key ID from the raw public key into the buffer
2478
gnutls.pubkey_get_key_id(
2479
pubkey,
2480
gnutls.KEYID_USE_SHA256,
2481
ctypes.cast(ctypes.byref(buf),
2482
ctypes.POINTER(ctypes.c_ubyte)),
2483
ctypes.byref(buf_len))
2484
# Deinit the certificate
2485
gnutls.pubkey_deinit(pubkey)
2486
2487
# Convert the buffer to a Python bytestring
2488
key_id = ctypes.string_at(buf, buf_len.value)
2489
# Convert the bytestring to hexadecimal notation
2490
hex_key_id = binascii.hexlify(key_id).upper()
2491
return hex_key_id
2492
2312
2493
@staticmethod
2313
2494
def fingerprint(openpgp):
2314
2495
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2329
2510
ctypes.byref(crtverify))
2330
2511
if crtverify.value != 0:
2331
2512
gnutls.openpgp_crt_deinit(crt)
2332
raise gnutls.CertificateSecurityError("Verify failed")
2513
raise gnutls.CertificateSecurityError(code
2514
=crtverify.value)
2333
2515
# New buffer for the fingerprint
2334
2516
buf = ctypes.create_string_buffer(20)
2335
2517
buf_len = ctypes.c_size_t()
2345
2527
return hex_fpr
2346
2528
2347
2529
2348
class MultiprocessingMixIn(object):
2530
class MultiprocessingMixIn:
2349
2531
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2350
2532
2351
2533
def sub_process_main(self, request, address):
2352
2534
try:
2353
2535
self.finish_request(request, address)
2354
2536
except Exception:
2355
2537
self.handle_error(request, address)
2356
2538
self.close_request(request)
2357
2539
2358
2540
def process_request(self, request, address):
2359
2541
"""Start a new process to process the request."""
2360
proc = multiprocessing.Process(target = self.sub_process_main,
2361
args = (request, address))
2542
proc = multiprocessing.Process(target=self.sub_process_main,
2543
args=(request, address))
2362
2544
proc.start()
2363
2545
return proc
2364
2546
2365
2547
2366
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2548
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
2367
2549
""" adds a pipe to the MixIn """
2368
2550
2369
2551
def process_request(self, request, client_address):
2370
2552
"""Overrides and wraps the original process_request().
2371
2553
2372
2554
This function creates a new pipe in self.pipe
2373
2555
"""
2374
2556
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2375
2557
2376
2558
proc = MultiprocessingMixIn.process_request(self, request,
2377
2559
client_address)
2378
2560
self.child_pipe.close()
2379
2561
self.add_pipe(parent_pipe, proc)
2380
2562
2381
2563
def add_pipe(self, parent_pipe, proc):
2382
2564
"""Dummy function; override as necessary"""
2383
2565
raise NotImplementedError()
2384
2566
2385
2567
2386
2568
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2387
socketserver.TCPServer, object):
2569
socketserver.TCPServer):
2388
2570
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2389
2571
2390
2572
Attributes:
2391
2573
enabled: Boolean; whether this server is activated yet
2392
2574
interface: None or a network interface name (string)
2393
2575
use_ipv6: Boolean; to use IPv6 or not
2394
2576
"""
2395
2577
2396
2578
def __init__(self, server_address, RequestHandlerClass,
2397
2579
interface=None,
2398
2580
use_ipv6=True,
2408
2590
self.socketfd = socketfd
2409
2591
# Save the original socket.socket() function
2410
2592
self.socket_socket = socket.socket
2593
2411
2594
# To implement --socket, we monkey patch socket.socket.
2412
#
2595
#
2413
2596
# (When socketserver.TCPServer is a new-style class, we
2414
2597
# could make self.socket into a property instead of monkey
2415
2598
# patching socket.socket.)
2416
#
2599
#
2417
2600
# Create a one-time-only replacement for socket.socket()
2418
2601
@functools.wraps(socket.socket)
2419
2602
def socket_wrapper(*args, **kwargs):
2431
2614
# socket_wrapper(), if socketfd was set.
2432
2615
socketserver.TCPServer.__init__(self, server_address,
2433
2616
RequestHandlerClass)
2434
2617
2435
2618
def server_bind(self):
2436
2619
"""This overrides the normal server_bind() function
2437
2620
to bind to an interface if one was specified, and also NOT to
2438
2621
bind to an address or port if they were not specified."""
2622
global SO_BINDTODEVICE
2439
2623
if self.interface is not None:
2440
2624
if SO_BINDTODEVICE is None:
2441
logger.error("SO_BINDTODEVICE does not exist;"
2442
" cannot bind to interface %s",
2443
self.interface)
2444
else:
2445
try:
2446
self.socket.setsockopt(
2447
socket.SOL_SOCKET, SO_BINDTODEVICE,
2448
(self.interface + "\0").encode("utf-8"))
2449
except socket.error as error:
2450
if error.errno == errno.EPERM:
2451
logger.error("No permission to bind to"
2452
" interface %s", self.interface)
2453
elif error.errno == errno.ENOPROTOOPT:
2454
logger.error("SO_BINDTODEVICE not available;"
2455
" cannot bind to interface %s",
2456
self.interface)
2457
elif error.errno == errno.ENODEV:
2458
logger.error("Interface %s does not exist,"
2459
" cannot bind", self.interface)
2460
else:
2461
raise
2625
# Fall back to a hard-coded value which seems to be
2626
# common enough.
2627
logger.warning("SO_BINDTODEVICE not found, trying 25")
2628
SO_BINDTODEVICE = 25
2629
try:
2630
self.socket.setsockopt(
2631
socket.SOL_SOCKET, SO_BINDTODEVICE,
2632
(self.interface + "\0").encode("utf-8"))
2633
except socket.error as error:
2634
if error.errno == errno.EPERM:
2635
logger.error("No permission to bind to"
2636
" interface %s", self.interface)
2637
elif error.errno == errno.ENOPROTOOPT:
2638
logger.error("SO_BINDTODEVICE not available;"
2639
" cannot bind to interface %s",
2640
self.interface)
2641
elif error.errno == errno.ENODEV:
2642
logger.error("Interface %s does not exist,"
2643
" cannot bind", self.interface)
2644
else:
2645
raise
2462
2646
# Only bind(2) the socket if we really need to.
2463
2647
if self.server_address[0] or self.server_address[1]:
2648
if self.server_address[1]:
2649
self.allow_reuse_address = True
2464
2650
if not self.server_address[0]:
2465
2651
if self.address_family == socket.AF_INET6:
2466
any_address = "::" # in6addr_any
2652
any_address = "::" # in6addr_any
2467
2653
else:
2468
any_address = "0.0.0.0" # INADDR_ANY
2654
any_address = "0.0.0.0" # INADDR_ANY
2469
2655
self.server_address = (any_address,
2470
2656
self.server_address[1])
2471
2657
elif not self.server_address[1]:
2481
2667
2482
2668
class MandosServer(IPv6_TCPServer):
2483
2669
"""Mandos server.
2484
2670
2485
2671
Attributes:
2486
2672
clients: set of Client objects
2487
2673
gnutls_priority GnuTLS priority string
2488
2674
use_dbus: Boolean; to emit D-Bus signals or not
2489
2490
Assumes a GObject.MainLoop event loop.
2675
2676
Assumes a GLib.MainLoop event loop.
2491
2677
"""
2492
2678
2493
2679
def __init__(self, server_address, RequestHandlerClass,
2494
2680
interface=None,
2495
2681
use_ipv6=True,
2505
2691
self.gnutls_priority = gnutls_priority
2506
2692
IPv6_TCPServer.__init__(self, server_address,
2507
2693
RequestHandlerClass,
2508
interface = interface,
2509
use_ipv6 = use_ipv6,
2510
socketfd = socketfd)
2511
2694
interface=interface,
2695
use_ipv6=use_ipv6,
2696
socketfd=socketfd)
2697
2512
2698
def server_activate(self):
2513
2699
if self.enabled:
2514
2700
return socketserver.TCPServer.server_activate(self)
2515
2701
2516
2702
def enable(self):
2517
2703
self.enabled = True
2518
2704
2519
2705
def add_pipe(self, parent_pipe, proc):
2520
2706
# Call "handle_ipc" for both data and EOF events
2521
GObject.io_add_watch(
2522
parent_pipe.fileno(),
2523
GObject.IO_IN | GObject.IO_HUP,
2707
GLib.io_add_watch(
2708
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2709
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2524
2710
functools.partial(self.handle_ipc,
2525
parent_pipe = parent_pipe,
2526
proc = proc))
2527
2711
parent_pipe=parent_pipe,
2712
proc=proc))
2713
2528
2714
def handle_ipc(self, source, condition,
2529
2715
parent_pipe=None,
2530
proc = None,
2716
proc=None,
2531
2717
client_object=None):
2532
2718
# error, or the other end of multiprocessing.Pipe has closed
2533
if condition & (GObject.IO_ERR | GObject.IO_HUP):
2719
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2534
2720
# Wait for other process to exit
2535
2721
proc.join()
2536
2722
return False
2537
2723
2538
2724
# Read a request from the child
2539
2725
request = parent_pipe.recv()
2540
2726
command = request[0]
2541
2727
2542
2728
if command == 'init':
2543
fpr = request[1]
2544
address = request[2]
2545
2729
key_id = request[1].decode("ascii")
2730
fpr = request[2].decode("ascii")
2731
address = request[3]
2732
2546
2733
for c in self.clients.values():
2547
if c.fingerprint == fpr:
2734
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2735
"27AE41E4649B934CA495991B7852B855"):
2736
continue
2737
if key_id and c.key_id == key_id:
2738
client = c
2739
break
2740
if fpr and c.fingerprint == fpr:
2548
2741
client = c
2549
2742
break
2550
2743
else:
2551
logger.info("Client not found for fingerprint: %s, ad"
2552
"dress: %s", fpr, address)
2744
logger.info("Client not found for key ID: %s, address"
2745
": %s", key_id or fpr, address)
2553
2746
if self.use_dbus:
2554
2747
# Emit D-Bus signal
2555
mandos_dbus_service.ClientNotFound(fpr,
2748
mandos_dbus_service.ClientNotFound(key_id or fpr,
2556
2749
address[0])
2557
2750
parent_pipe.send(False)
2558
2751
return False
2559
2560
GObject.io_add_watch(
2561
parent_pipe.fileno(),
2562
GObject.IO_IN | GObject.IO_HUP,
2752
2753
GLib.io_add_watch(
2754
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2755
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2563
2756
functools.partial(self.handle_ipc,
2564
parent_pipe = parent_pipe,
2565
proc = proc,
2566
client_object = client))
2757
parent_pipe=parent_pipe,
2758
proc=proc,
2759
client_object=client))
2567
2760
parent_pipe.send(True)
2568
2761
# remove the old hook in favor of the new above hook on
2569
2762
# same fileno
2572
2765
funcname = request[1]
2573
2766
args = request[2]
2574
2767
kwargs = request[3]
2575
2768
2576
2769
parent_pipe.send(('data', getattr(client_object,
2577
2770
funcname)(*args,
2578
2771
**kwargs)))
2579
2772
2580
2773
if command == 'getattr':
2581
2774
attrname = request[1]
2582
2775
if isinstance(client_object.__getattribute__(attrname),
2583
collections.Callable):
2776
collections.abc.Callable):
2584
2777
parent_pipe.send(('function', ))
2585
2778
else:
2586
2779
parent_pipe.send((
2587
2780
'data', client_object.__getattribute__(attrname)))
2588
2781
2589
2782
if command == 'setattr':
2590
2783
attrname = request[1]
2591
2784
value = request[2]
2592
2785
setattr(client_object, attrname, value)
2593
2786
2594
2787
return True
2595
2788
2596
2789
2597
2790
def rfc3339_duration_to_delta(duration):
2598
2791
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2599
2600
>>> rfc3339_duration_to_delta("P7D")
2601
datetime.timedelta(7)
2602
>>> rfc3339_duration_to_delta("PT60S")
2603
datetime.timedelta(0, 60)
2604
>>> rfc3339_duration_to_delta("PT60M")
2605
datetime.timedelta(0, 3600)
2606
>>> rfc3339_duration_to_delta("PT24H")
2607
datetime.timedelta(1)
2608
>>> rfc3339_duration_to_delta("P1W")
2609
datetime.timedelta(7)
2610
>>> rfc3339_duration_to_delta("PT5M30S")
2611
datetime.timedelta(0, 330)
2612
>>> rfc3339_duration_to_delta("P1DT3M20S")
2613
datetime.timedelta(1, 200)
2792
2793
>>> timedelta = datetime.timedelta
2794
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2795
True
2796
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2797
True
2798
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2799
True
2800
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2801
True
2802
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2803
True
2804
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2805
True
2806
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2807
True
2808
>>> del timedelta
2614
2809
"""
2615
2810
2616
2811
# Parsing an RFC 3339 duration with regular expressions is not
2617
2812
# possible - there would have to be multiple places for the same
2618
2813
# values, like seconds. The current code, while more esoteric, is
2619
2814
# cleaner without depending on a parsing library. If Python had a
2620
2815
# built-in library for parsing we would use it, but we'd like to
2621
2816
# avoid excessive use of external libraries.
2622
2817
2623
2818
# New type for defining tokens, syntax, and semantics all-in-one
2624
2819
Token = collections.namedtuple("Token", (
2625
2820
"regexp", # To match token; if "value" is not None, must have
2658
2853
frozenset((token_year, token_month,
2659
2854
token_day, token_time,
2660
2855
token_week)))
2661
# Define starting values
2662
value = datetime.timedelta() # Value so far
2856
# Define starting values:
2857
# Value so far
2858
value = datetime.timedelta()
2663
2859
found_token = None
2664
followers = frozenset((token_duration, )) # Following valid tokens
2665
s = duration # String left to parse
2860
# Following valid tokens
2861
followers = frozenset((token_duration, ))
2862
# String left to parse
2863
s = duration
2666
2864
# Loop until end token is found
2667
2865
while found_token is not token_end:
2668
2866
# Search for any currently valid tokens
2692
2890
2693
2891
def string_to_delta(interval):
2694
2892
"""Parse a string and return a datetime.timedelta
2695
2696
>>> string_to_delta('7d')
2697
datetime.timedelta(7)
2698
>>> string_to_delta('60s')
2699
datetime.timedelta(0, 60)
2700
>>> string_to_delta('60m')
2701
datetime.timedelta(0, 3600)
2702
>>> string_to_delta('24h')
2703
datetime.timedelta(1)
2704
>>> string_to_delta('1w')
2705
datetime.timedelta(7)
2706
>>> string_to_delta('5m 30s')
2707
datetime.timedelta(0, 330)
2893
2894
>>> string_to_delta('7d') == datetime.timedelta(7)
2895
True
2896
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2897
True
2898
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2899
True
2900
>>> string_to_delta('24h') == datetime.timedelta(1)
2901
True
2902
>>> string_to_delta('1w') == datetime.timedelta(7)
2903
True
2904
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2905
True
2708
2906
"""
2709
2907
2710
2908
try:
2711
2909
return rfc3339_duration_to_delta(interval)
2712
2910
except ValueError:
2713
2911
pass
2714
2912
2715
2913
timevalue = datetime.timedelta(0)
2716
2914
for s in interval.split():
2717
2915
try:
2735
2933
return timevalue
2736
2934
2737
2935
2738
def daemon(nochdir = False, noclose = False):
2936
def daemon(nochdir=False, noclose=False):
2739
2937
"""See daemon(3). Standard BSD Unix function.
2740
2938
2741
2939
This should really exist as os.daemon, but it doesn't (yet)."""
2742
2940
if os.fork():
2743
2941
sys.exit()
2761
2959
2762
2960
2763
2961
def main():
2764
2962
2765
2963
##################################################################
2766
2964
# Parsing of options, both command line and config file
2767
2965
2768
2966
parser = argparse.ArgumentParser()
2769
2967
parser.add_argument("-v", "--version", action="version",
2770
version = "%(prog)s {}".format(version),
2968
version="%(prog)s {}".format(version),
2771
2969
help="show version number and exit")
2772
2970
parser.add_argument("-i", "--interface", metavar="IF",
2773
2971
help="Bind to interface IF")
2809
3007
parser.add_argument("--no-zeroconf", action="store_false",
2810
3008
dest="zeroconf", help="Do not use Zeroconf",
2811
3009
default=None)
2812
3010
2813
3011
options = parser.parse_args()
2814
2815
if options.check:
2816
import doctest
2817
fail_count, test_count = doctest.testmod()
2818
sys.exit(os.EX_OK if fail_count == 0 else 1)
2819
3012
2820
3013
# Default values for config file for server-global settings
2821
server_defaults = { "interface": "",
2822
"address": "",
2823
"port": "",
2824
"debug": "False",
2825
"priority":
2826
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2827
":+SIGN-DSA-SHA256",
2828
"servicename": "Mandos",
2829
"use_dbus": "True",
2830
"use_ipv6": "True",
2831
"debuglevel": "",
2832
"restore": "True",
2833
"socket": "",
2834
"statedir": "/var/lib/mandos",
2835
"foreground": "False",
2836
"zeroconf": "True",
2837
}
2838
3014
if gnutls.has_rawpk:
3015
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3016
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3017
else:
3018
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3019
":+SIGN-DSA-SHA256")
3020
server_defaults = {"interface": "",
3021
"address": "",
3022
"port": "",
3023
"debug": "False",
3024
"priority": priority,
3025
"servicename": "Mandos",
3026
"use_dbus": "True",
3027
"use_ipv6": "True",
3028
"debuglevel": "",
3029
"restore": "True",
3030
"socket": "",
3031
"statedir": "/var/lib/mandos",
3032
"foreground": "False",
3033
"zeroconf": "True",
3034
}
3035
del priority
3036
2839
3037
# Parse config file for server-global settings
2840
server_config = configparser.SafeConfigParser(server_defaults)
3038
server_config = configparser.ConfigParser(server_defaults)
2841
3039
del server_defaults
2842
3040
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2843
# Convert the SafeConfigParser object to a dict
3041
# Convert the ConfigParser object to a dict
2844
3042
server_settings = server_config.defaults()
2845
3043
# Use the appropriate methods on the non-string config options
2846
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3044
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3045
"foreground", "zeroconf"):
2847
3046
server_settings[option] = server_config.getboolean("DEFAULT",
2848
3047
option)
2849
3048
if server_settings["port"]:
2859
3058
server_settings["socket"] = os.dup(server_settings
2860
3059
["socket"])
2861
3060
del server_config
2862
3061
2863
3062
# Override the settings from the config file with command line
2864
3063
# options, if set.
2865
3064
for option in ("interface", "address", "port", "debug",
2883
3082
if server_settings["debug"]:
2884
3083
server_settings["foreground"] = True
2885
3084
# Now we have our good server settings in "server_settings"
2886
3085
2887
3086
##################################################################
2888
3087
2889
3088
if (not server_settings["zeroconf"]
2890
3089
and not (server_settings["port"]
2891
3090
or server_settings["socket"] != "")):
2892
3091
parser.error("Needs port or socket to work without Zeroconf")
2893
3092
2894
3093
# For convenience
2895
3094
debug = server_settings["debug"]
2896
3095
debuglevel = server_settings["debuglevel"]
2900
3099
stored_state_file)
2901
3100
foreground = server_settings["foreground"]
2902
3101
zeroconf = server_settings["zeroconf"]
2903
3102
2904
3103
if debug:
2905
3104
initlogger(debug, logging.DEBUG)
2906
3105
else:
2909
3108
else:
2910
3109
level = getattr(logging, debuglevel.upper())
2911
3110
initlogger(debug, level)
2912
3111
2913
3112
if server_settings["servicename"] != "Mandos":
2914
3113
syslogger.setFormatter(
2915
3114
logging.Formatter('Mandos ({}) [%(process)d]:'
2916
3115
' %(levelname)s: %(message)s'.format(
2917
3116
server_settings["servicename"])))
2918
3117
2919
3118
# Parse config file with clients
2920
client_config = configparser.SafeConfigParser(Client
2921
.client_defaults)
3119
client_config = configparser.ConfigParser(Client.client_defaults)
2922
3120
client_config.read(os.path.join(server_settings["configdir"],
2923
3121
"clients.conf"))
2924
3122
2925
3123
global mandos_dbus_service
2926
3124
mandos_dbus_service = None
2927
3125
2928
3126
socketfd = None
2929
3127
if server_settings["socket"] != "":
2930
3128
socketfd = server_settings["socket"]
2946
3144
except IOError as e:
2947
3145
logger.error("Could not open file %r", pidfilename,
2948
3146
exc_info=e)
2949
3147
2950
3148
for name, group in (("_mandos", "_mandos"),
2951
3149
("mandos", "mandos"),
2952
3150
("nobody", "nogroup")):
2970
3168
.format(uid, gid, os.strerror(error.errno)))
2971
3169
if error.errno != errno.EPERM:
2972
3170
raise
2973
3171
2974
3172
if debug:
2975
3173
# Enable all possible GnuTLS debugging
2976
3174
2977
3175
# "Use a log level over 10 to enable all debugging options."
2978
3176
# - GnuTLS manual
2979
3177
gnutls.global_set_log_level(11)
2980
3178
2981
3179
@gnutls.log_func
2982
3180
def debug_gnutls(level, string):
2983
3181
logger.debug("GnuTLS: %s", string[:-1])
2984
3182
2985
3183
gnutls.global_set_log_function(debug_gnutls)
2986
3184
2987
3185
# Redirect stdin so all checkers get /dev/null
2988
3186
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2989
3187
os.dup2(null, sys.stdin.fileno())
2990
3188
if null > 2:
2991
3189
os.close(null)
2992
3190
2993
3191
# Need to fork before connecting to D-Bus
2994
3192
if not foreground:
2995
3193
# Close all input and output, do double fork, etc.
2996
3194
daemon()
2997
2998
# multiprocessing will use threads, so before we use GObject we
2999
# need to inform GObject that threads will be used.
3000
GObject.threads_init()
3001
3195
3196
if gi.version_info < (3, 10, 2):
3197
# multiprocessing will use threads, so before we use GLib we
3198
# need to inform GLib that threads will be used.
3199
GLib.threads_init()
3200
3002
3201
global main_loop
3003
3202
# From the Avahi example code
3004
3203
DBusGMainLoop(set_as_default=True)
3005
main_loop = GObject.MainLoop()
3204
main_loop = GLib.MainLoop()
3006
3205
bus = dbus.SystemBus()
3007
3206
# End of Avahi example code
3008
3207
if use_dbus:
3021
3220
if zeroconf:
3022
3221
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3023
3222
service = AvahiServiceToSyslog(
3024
name = server_settings["servicename"],
3025
servicetype = "_mandos._tcp",
3026
protocol = protocol,
3027
bus = bus)
3223
name=server_settings["servicename"],
3224
servicetype="_mandos._tcp",
3225
protocol=protocol,
3226
bus=bus)
3028
3227
if server_settings["interface"]:
3029
3228
service.interface = if_nametoindex(
3030
3229
server_settings["interface"].encode("utf-8"))
3031
3230
3032
3231
global multiprocessing_manager
3033
3232
multiprocessing_manager = multiprocessing.Manager()
3034
3233
3035
3234
client_class = Client
3036
3235
if use_dbus:
3037
client_class = functools.partial(ClientDBus, bus = bus)
3038
3236
client_class = functools.partial(ClientDBus, bus=bus)
3237
3039
3238
client_settings = Client.config_parser(client_config)
3040
3239
old_client_settings = {}
3041
3240
clients_data = {}
3042
3241
3043
3242
# This is used to redirect stdout and stderr for checker processes
3044
3243
global wnull
3045
wnull = open(os.devnull, "w") # A writable /dev/null
3244
wnull = open(os.devnull, "w") # A writable /dev/null
3046
3245
# Only used if server is running in foreground but not in debug
3047
3246
# mode
3048
3247
if debug or not foreground:
3049
3248
wnull.close()
3050
3249
3051
3250
# Get client data and settings from last running state.
3052
3251
if server_settings["restore"]:
3053
3252
try:
3054
3253
with open(stored_state_path, "rb") as stored_state:
3055
if sys.version_info.major == 2:
3254
if sys.version_info.major == 2:
3056
3255
clients_data, old_client_settings = pickle.load(
3057
3256
stored_state)
3058
3257
else:
3059
3258
bytes_clients_data, bytes_old_client_settings = (
3060
pickle.load(stored_state, encoding = "bytes"))
3061
### Fix bytes to strings
3062
## clients_data
3259
pickle.load(stored_state, encoding="bytes"))
3260
# Fix bytes to strings
3261
# clients_data
3063
3262
# .keys()
3064
clients_data = { (key.decode("utf-8")
3065
if isinstance(key, bytes)
3066
else key): value
3067
for key, value in
3068
bytes_clients_data.items() }
3263
clients_data = {(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_clients_data.items()}
3268
del bytes_clients_data
3069
3269
for key in clients_data:
3070
value = { (k.decode("utf-8")
3071
if isinstance(k, bytes) else k): v
3072
for k, v in
3073
clients_data[key].items() }
3270
value = {(k.decode("utf-8")
3271
if isinstance(k, bytes) else k): v
3272
for k, v in
3273
clients_data[key].items()}
3074
3274
clients_data[key] = value
3075
3275
# .client_structure
3076
3276
value["client_structure"] = [
3077
3277
(s.decode("utf-8")
3078
3278
if isinstance(s, bytes)
3079
3279
else s) for s in
3080
value["client_structure"] ]
3081
# .name & .host
3082
for k in ("name", "host"):
3280
value["client_structure"]]
3281
# .name, .host, and .checker_command
3282
for k in ("name", "host", "checker_command"):
3083
3283
if isinstance(value[k], bytes):
3084
3284
value[k] = value[k].decode("utf-8")
3085
## old_client_settings
3086
# .keys
3285
if "key_id" not in value:
3286
value["key_id"] = ""
3287
elif "fingerprint" not in value:
3288
value["fingerprint"] = ""
3289
# old_client_settings
3290
# .keys()
3087
3291
old_client_settings = {
3088
3292
(key.decode("utf-8")
3089
3293
if isinstance(key, bytes)
3090
3294
else key): value
3091
3295
for key, value in
3092
bytes_old_client_settings.items() }
3093
# .host
3296
bytes_old_client_settings.items()}
3297
del bytes_old_client_settings
3298
# .host and .checker_command
3094
3299
for value in old_client_settings.values():
3095
value["host"] = value["host"].decode("utf-8")
3300
for attribute in ("host", "checker_command"):
3301
if isinstance(value[attribute], bytes):
3302
value[attribute] = (value[attribute]
3303
.decode("utf-8"))
3096
3304
os.remove(stored_state_path)
3097
3305
except IOError as e:
3098
3306
if e.errno == errno.ENOENT:
3106
3314
logger.warning("Could not load persistent state: "
3107
3315
"EOFError:",
3108
3316
exc_info=e)
3109
3317
3110
3318
with PGPEngine() as pgp:
3111
3319
for client_name, client in clients_data.items():
3112
3320
# Skip removed clients
3113
3321
if client_name not in client_settings:
3114
3322
continue
3115
3323
3116
3324
# Decide which value to use after restoring saved state.
3117
3325
# We have three different values: Old config file,
3118
3326
# new config file, and saved state.
3129
3337
client[name] = value
3130
3338
except KeyError:
3131
3339
pass
3132
3340
3133
3341
# Clients who has passed its expire date can still be
3134
3342
# enabled if its last checker was successful. A Client
3135
3343
# whose checker succeeded before we stored its state is
3168
3376
client_name))
3169
3377
client["secret"] = (client_settings[client_name]
3170
3378
["secret"])
3171
3379
3172
3380
# Add/remove clients based on new changes made to config
3173
3381
for client_name in (set(old_client_settings)
3174
3382
- set(client_settings)):
3176
3384
for client_name in (set(client_settings)
3177
3385
- set(old_client_settings)):
3178
3386
clients_data[client_name] = client_settings[client_name]
3179
3387
3180
3388
# Create all client objects
3181
3389
for client_name, client in clients_data.items():
3182
3390
tcp_server.clients[client_name] = client_class(
3183
name = client_name,
3184
settings = client,
3185
server_settings = server_settings)
3186
3391
name=client_name,
3392
settings=client,
3393
server_settings=server_settings)
3394
3187
3395
if not tcp_server.clients:
3188
3396
logger.warning("No clients defined")
3189
3397
3190
3398
if not foreground:
3191
3399
if pidfile is not None:
3192
3400
pid = os.getpid()
3198
3406
pidfilename, pid)
3199
3407
del pidfile
3200
3408
del pidfilename
3201
3202
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
3203
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3204
3409
3410
for termsig in (signal.SIGHUP, signal.SIGTERM):
3411
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3412
lambda: main_loop.quit() and False)
3413
3205
3414
if use_dbus:
3206
3415
3207
3416
@alternate_dbus_interfaces(
3208
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3417
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3209
3418
class MandosDBusService(DBusObjectWithObjectManager):
3210
3419
"""A D-Bus proxy object"""
3211
3420
3212
3421
def __init__(self):
3213
3422
dbus.service.Object.__init__(self, bus, "/")
3214
3423
3215
3424
_interface = "se.recompile.Mandos"
3216
3425
3217
3426
@dbus.service.signal(_interface, signature="o")
3218
3427
def ClientAdded(self, objpath):
3219
3428
"D-Bus signal"
3220
3429
pass
3221
3430
3222
3431
@dbus.service.signal(_interface, signature="ss")
3223
def ClientNotFound(self, fingerprint, address):
3432
def ClientNotFound(self, key_id, address):
3224
3433
"D-Bus signal"
3225
3434
pass
3226
3435
3227
3436
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3228
3437
"true"})
3229
3438
@dbus.service.signal(_interface, signature="os")
3230
3439
def ClientRemoved(self, objpath, name):
3231
3440
"D-Bus signal"
3232
3441
pass
3233
3442
3234
3443
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3235
3444
"true"})
3236
3445
@dbus.service.method(_interface, out_signature="ao")
3238
3447
"D-Bus method"
3239
3448
return dbus.Array(c.dbus_object_path for c in
3240
3449
tcp_server.clients.values())
3241
3450
3242
3451
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3243
3452
"true"})
3244
3453
@dbus.service.method(_interface,
3246
3455
def GetAllClientsWithProperties(self):
3247
3456
"D-Bus method"
3248
3457
return dbus.Dictionary(
3249
{ c.dbus_object_path: c.GetAll(
3458
{c.dbus_object_path: c.GetAll(
3250
3459
"se.recompile.Mandos.Client")
3251
for c in tcp_server.clients.values() },
3460
for c in tcp_server.clients.values()},
3252
3461
signature="oa{sv}")
3253
3462
3254
3463
@dbus.service.method(_interface, in_signature="o")
3255
3464
def RemoveClient(self, object_path):
3256
3465
"D-Bus method"
3264
3473
self.client_removed_signal(c)
3265
3474
return
3266
3475
raise KeyError(object_path)
3267
3476
3268
3477
del _interface
3269
3478
3270
3479
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3271
out_signature = "a{oa{sa{sv}}}")
3480
out_signature="a{oa{sa{sv}}}")
3272
3481
def GetManagedObjects(self):
3273
3482
"""D-Bus method"""
3274
3483
return dbus.Dictionary(
3275
{ client.dbus_object_path:
3276
dbus.Dictionary(
3277
{ interface: client.GetAll(interface)
3278
for interface in
3279
client._get_all_interface_names()})
3280
for client in tcp_server.clients.values()})
3281
3484
{client.dbus_object_path:
3485
dbus.Dictionary(
3486
{interface: client.GetAll(interface)
3487
for interface in
3488
client._get_all_interface_names()})
3489
for client in tcp_server.clients.values()})
3490
3282
3491
def client_added_signal(self, client):
3283
3492
"""Send the new standard signal and the old signal"""
3284
3493
if use_dbus:
3286
3495
self.InterfacesAdded(
3287
3496
client.dbus_object_path,
3288
3497
dbus.Dictionary(
3289
{ interface: client.GetAll(interface)
3290
for interface in
3291
client._get_all_interface_names()}))
3498
{interface: client.GetAll(interface)
3499
for interface in
3500
client._get_all_interface_names()}))
3292
3501
# Old signal
3293
3502
self.ClientAdded(client.dbus_object_path)
3294
3503
3295
3504
def client_removed_signal(self, client):
3296
3505
"""Send the new standard signal and the old signal"""
3297
3506
if use_dbus:
3302
3511
# Old signal
3303
3512
self.ClientRemoved(client.dbus_object_path,
3304
3513
client.name)
3305
3514
3306
3515
mandos_dbus_service = MandosDBusService()
3307
3516
3517
# Save modules to variables to exempt the modules from being
3518
# unloaded before the function registered with atexit() is run.
3519
mp = multiprocessing
3520
wn = wnull
3521
3308
3522
def cleanup():
3309
3523
"Cleanup function; run on exit"
3310
3524
if zeroconf:
3311
3525
service.cleanup()
3312
3313
multiprocessing.active_children()
3314
wnull.close()
3526
3527
mp.active_children()
3528
wn.close()
3315
3529
if not (tcp_server.clients or client_settings):
3316
3530
return
3317
3531
3318
3532
# Store client before exiting. Secrets are encrypted with key
3319
3533
# based on what config file has. If config file is
3320
3534
# removed/edited, old secret will thus be unrecovable.
3325
3539
client.encrypted_secret = pgp.encrypt(client.secret,
3326
3540
key)
3327
3541
client_dict = {}
3328
3542
3329
3543
# A list of attributes that can not be pickled
3330
3544
# + secret.
3331
exclude = { "bus", "changedstate", "secret",
3332
"checker", "server_settings" }
3545
exclude = {"bus", "changedstate", "secret",
3546
"checker", "server_settings"}
3333
3547
for name, typ in inspect.getmembers(dbus.service
3334
3548
.Object):
3335
3549
exclude.add(name)
3336
3550
3337
3551
client_dict["encrypted_secret"] = (client
3338
3552
.encrypted_secret)
3339
3553
for attr in client.client_structure:
3340
3554
if attr not in exclude:
3341
3555
client_dict[attr] = getattr(client, attr)
3342
3556
3343
3557
clients[client.name] = client_dict
3344
3558
del client_settings[client.name]["secret"]
3345
3559
3346
3560
try:
3347
3561
with tempfile.NamedTemporaryFile(
3348
3562
mode='wb',
3351
3565
dir=os.path.dirname(stored_state_path),
3352
3566
delete=False) as stored_state:
3353
3567
pickle.dump((clients, client_settings), stored_state,
3354
protocol = 2)
3568
protocol=2)
3355
3569
tempname = stored_state.name
3356
3570
os.rename(tempname, stored_state_path)
3357
3571
except (IOError, OSError) as e:
3367
3581
logger.warning("Could not save persistent state:",
3368
3582
exc_info=e)
3369
3583
raise
3370
3584
3371
3585
# Delete all clients, and settings from config
3372
3586
while tcp_server.clients:
3373
3587
name, client = tcp_server.clients.popitem()
3379
3593
if use_dbus:
3380
3594
mandos_dbus_service.client_removed_signal(client)
3381
3595
client_settings.clear()
3382
3596
3383
3597
atexit.register(cleanup)
3384
3598
3385
3599
for client in tcp_server.clients.values():
3386
3600
if use_dbus:
3387
3601
# Emit D-Bus signal for adding
3389
3603
# Need to initiate checking of clients
3390
3604
if client.enabled:
3391
3605
client.init_checker()
3392
3606
3393
3607
tcp_server.enable()
3394
3608
tcp_server.server_activate()
3395
3609
3396
3610
# Find out what port we got
3397
3611
if zeroconf:
3398
3612
service.port = tcp_server.socket.getsockname()[1]
3403
3617
else: # IPv4
3404
3618
logger.info("Now listening on address %r, port %d",
3405
3619
*tcp_server.socket.getsockname())
3406
3407
#service.interface = tcp_server.socket.getsockname()[3]
3408
3620
3621
# service.interface = tcp_server.socket.getsockname()[3]
3622
3409
3623
try:
3410
3624
if zeroconf:
3411
3625
# From the Avahi example code
3416
3630
cleanup()
3417
3631
sys.exit(1)
3418
3632
# End of Avahi example code
3419
3420
GObject.io_add_watch(tcp_server.fileno(), GObject.IO_IN,
3421
lambda *args, **kwargs:
3422
(tcp_server.handle_request
3423
(*args[2:], **kwargs) or True))
3424
3633
3634
GLib.io_add_watch(
3635
GLib.IOChannel.unix_new(tcp_server.fileno()),
3636
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3637
lambda *args, **kwargs: (tcp_server.handle_request
3638
(*args[2:], **kwargs) or True))
3639
3425
3640
logger.debug("Starting main loop")
3426
3641
main_loop.run()
3427
3642
except AvahiError as error:
3436
3651
# Must run before the D-Bus bus name gets deregistered
3437
3652
cleanup()
3438
3653
3654
3655
def should_only_run_tests():
3656
parser = argparse.ArgumentParser(add_help=False)
3657
parser.add_argument("--check", action='store_true')
3658
args, unknown_args = parser.parse_known_args()
3659
run_tests = args.check
3660
if run_tests:
3661
# Remove --check argument from sys.argv
3662
sys.argv[1:] = unknown_args
3663
return run_tests
3664
3665
# Add all tests from doctest strings
3666
def load_tests(loader, tests, none):
3667
import doctest
3668
tests.addTests(doctest.DocTestSuite())
3669
return tests
3439
3670
3440
3671
if __name__ == '__main__':
3441
main()
3672
try:
3673
if should_only_run_tests():
3674
# Call using ./mandos --check [--verbose]
3675
unittest.main()
3676
else:
3677
main()
3678
finally:
3679
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0