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- Committer: Teddy Hogeborn
- Date: 2015-12-06 04:09:43 UTC
- Revision ID: teddy@recompile.se-20151206040943-n08v1uym0d3h23u9
* mandos.xml (FILES): Removed duplicate entry for “/dev/log”.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- dracut-module
- files modified:
- .bzrignore
added
removed
mandos
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
#
1
#!/usr/bin/python2.7
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2020 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
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
37
from future_builtins import *
42
38
43
39
try:
44
40
import SocketServer as socketserver
48
44
import argparse
49
45
import datetime
50
46
import errno
47
import gnutls.crypto
48
import gnutls.connection
49
import gnutls.errors
50
import gnutls.library.functions
51
import gnutls.library.constants
52
import gnutls.library.types
51
53
try:
52
54
import ConfigParser as configparser
53
55
except ImportError:
77
79
import itertools
78
80
import collections
79
81
import codecs
80
import unittest
81
import random
82
import shlex
83
82
84
83
import dbus
85
84
import dbus.service
86
import gi
87
from gi.repository import GLib
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
89
import avahi
88
90
from dbus.mainloop.glib import DBusGMainLoop
89
91
import ctypes
90
92
import ctypes.util
91
93
import xml.dom.minidom
92
94
import inspect
93
95
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
96
try:
122
97
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
98
except AttributeError:
124
99
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
127
100
from IN import SO_BINDTODEVICE
128
101
except ImportError:
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.14"
102
SO_BINDTODEVICE = None
103
104
if sys.version_info.major == 2:
105
str = unicode
106
107
version = "1.7.1"
147
108
stored_state_file = "clients.pickle"
148
109
149
110
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
151
111
syslogger = None
152
112
153
113
try:
154
114
if_nametoindex = ctypes.cdll.LoadLibrary(
155
115
ctypes.util.find_library("c")).if_nametoindex
156
116
except (OSError, AttributeError):
157
117
158
118
def if_nametoindex(interface):
159
119
"Get an interface index the hard way, i.e. using fcntl()"
160
120
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
165
125
return interface_index
166
126
167
127
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
184
128
def initlogger(debug, level=logging.WARNING):
185
129
"""init logger and add loglevel"""
186
130
187
131
global syslogger
188
132
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
191
135
syslogger.setFormatter(logging.Formatter
192
("Mandos [%(process)d]: %(levelname)s:"
193
" %(message)s"))
136
('Mandos [%(process)d]: %(levelname)s:'
137
' %(message)s'))
194
138
logger.addHandler(syslogger)
195
139
196
140
if debug:
197
141
console = logging.StreamHandler()
198
console.setFormatter(logging.Formatter("%(asctime)s %(name)s"
199
" [%(process)d]:"
200
" %(levelname)s:"
201
" %(message)s"))
142
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
143
' [%(process)d]:'
144
' %(levelname)s:'
145
' %(message)s'))
202
146
logger.addHandler(console)
203
147
logger.setLevel(level)
204
148
208
152
pass
209
153
210
154
211
class PGPEngine:
155
class PGPEngine(object):
212
156
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
157
214
158
def __init__(self):
215
159
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ["--batch",
228
"--homedir", self.tempdir,
229
"--force-mdc",
230
"--quiet"]
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
160
self.gnupgargs = ['--batch',
161
'--home', self.tempdir,
162
'--force-mdc',
163
'--quiet',
164
'--no-use-agent']
165
235
166
def __enter__(self):
236
167
return self
237
168
238
169
def __exit__(self, exc_type, exc_value, traceback):
239
170
self._cleanup()
240
171
return False
241
172
242
173
def __del__(self):
243
174
self._cleanup()
244
175
245
176
def _cleanup(self):
246
177
if self.tempdir is not None:
247
178
# Delete contents of tempdir
248
179
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
180
topdown = False):
250
181
for filename in files:
251
182
os.remove(os.path.join(root, filename))
252
183
for dirname in dirs:
254
185
# Remove tempdir
255
186
os.rmdir(self.tempdir)
256
187
self.tempdir = None
257
188
258
189
def password_encode(self, password):
259
190
# Passphrase can not be empty and can not contain newlines or
260
191
# NUL bytes. So we prefix it and hex encode it.
265
196
.replace(b"\n", b"\\n")
266
197
.replace(b"\0", b"\\x00"))
267
198
return encoded
268
199
269
200
def encrypt(self, data, password):
270
201
passphrase = self.password_encode(password)
271
202
with tempfile.NamedTemporaryFile(
272
203
dir=self.tempdir) as passfile:
273
204
passfile.write(passphrase)
274
205
passfile.flush()
275
proc = subprocess.Popen([self.gpg, "--symmetric",
276
"--passphrase-file",
206
proc = subprocess.Popen(['gpg', '--symmetric',
207
'--passphrase-file',
277
208
passfile.name]
278
209
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
283
214
if proc.returncode != 0:
284
215
raise PGPError(err)
285
216
return ciphertext
286
217
287
218
def decrypt(self, data, password):
288
219
passphrase = self.password_encode(password)
289
220
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
221
dir = self.tempdir) as passfile:
291
222
passfile.write(passphrase)
292
223
passfile.flush()
293
proc = subprocess.Popen([self.gpg, "--decrypt",
294
"--passphrase-file",
224
proc = subprocess.Popen(['gpg', '--decrypt',
225
'--passphrase-file',
295
226
passfile.name]
296
227
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
301
232
if proc.returncode != 0:
302
233
raise PGPError(err)
303
234
return decrypted_plaintext
304
235
305
236
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
331
332
237
class AvahiError(Exception):
333
238
def __init__(self, value, *args, **kwargs):
334
239
self.value = value
344
249
pass
345
250
346
251
347
class AvahiService:
252
class AvahiService(object):
348
253
"""An Avahi (Zeroconf) service.
349
254
350
255
Attributes:
351
256
interface: integer; avahi.IF_UNSPEC or an interface index.
352
257
Used to optionally bind to the specified interface.
353
name: string; Example: "Mandos"
354
type: string; Example: "_mandos._tcp".
258
name: string; Example: 'Mandos'
259
type: string; Example: '_mandos._tcp'.
355
260
See <https://www.iana.org/assignments/service-names-port-numbers>
356
261
port: integer; what port to announce
357
262
TXT: list of strings; TXT record for the service
364
269
server: D-Bus Server
365
270
bus: dbus.SystemBus()
366
271
"""
367
272
368
273
def __init__(self,
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):
274
interface = avahi.IF_UNSPEC,
275
name = None,
276
servicetype = None,
277
port = None,
278
TXT = None,
279
domain = "",
280
host = "",
281
max_renames = 32768,
282
protocol = avahi.PROTO_UNSPEC,
283
bus = None):
379
284
self.interface = interface
380
285
self.name = name
381
286
self.type = servicetype
390
295
self.server = None
391
296
self.bus = bus
392
297
self.entry_group_state_changed_match = None
393
298
394
299
def rename(self, remove=True):
395
300
"""Derived from the Avahi example code"""
396
301
if self.rename_count >= self.max_renames:
416
321
logger.critical("D-Bus Exception", exc_info=error)
417
322
self.cleanup()
418
323
os._exit(1)
419
324
420
325
def remove(self):
421
326
"""Derived from the Avahi example code"""
422
327
if self.entry_group_state_changed_match is not None:
424
329
self.entry_group_state_changed_match = None
425
330
if self.group is not None:
426
331
self.group.Reset()
427
332
428
333
def add(self):
429
334
"""Derived from the Avahi example code"""
430
335
self.remove()
435
340
avahi.DBUS_INTERFACE_ENTRY_GROUP)
436
341
self.entry_group_state_changed_match = (
437
342
self.group.connect_to_signal(
438
"StateChanged", self.entry_group_state_changed))
343
'StateChanged', self.entry_group_state_changed))
439
344
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
440
345
self.name, self.type)
441
346
self.group.AddService(
447
352
dbus.UInt16(self.port),
448
353
avahi.string_array_to_txt_array(self.TXT))
449
354
self.group.Commit()
450
355
451
356
def entry_group_state_changed(self, state, error):
452
357
"""Derived from the Avahi example code"""
453
358
logger.debug("Avahi entry group state change: %i", state)
454
359
455
360
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
361
logger.debug("Zeroconf service established.")
457
362
elif state == avahi.ENTRY_GROUP_COLLISION:
461
366
logger.critical("Avahi: Error in group state changed %s",
462
367
str(error))
463
368
raise AvahiGroupError("State changed: {!s}".format(error))
464
369
465
370
def cleanup(self):
466
371
"""Derived from the Avahi example code"""
467
372
if self.group is not None:
472
377
pass
473
378
self.group = None
474
379
self.remove()
475
380
476
381
def server_state_changed(self, state, error=None):
477
382
"""Derived from the Avahi example code"""
478
383
logger.debug("Avahi server state change: %i", state)
507
412
logger.debug("Unknown state: %r", state)
508
413
else:
509
414
logger.debug("Unknown state: %r: %r", state, error)
510
415
511
416
def activate(self):
512
417
"""Derived from the Avahi example code"""
513
418
if self.server is None:
524
429
class AvahiServiceToSyslog(AvahiService):
525
430
def rename(self, *args, **kwargs):
526
431
"""Add the new name to the syslog messages"""
527
ret = super(AvahiServiceToSyslog, self).rename(*args,
528
**kwargs)
432
ret = AvahiService.rename(self, *args, **kwargs)
529
433
syslogger.setFormatter(logging.Formatter(
530
"Mandos ({}) [%(process)d]: %(levelname)s: %(message)s"
434
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
531
435
.format(self.name)))
532
436
return ret
533
437
534
535
# Pretend that we have a GnuTLS module
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
545
# Unless otherwise indicated, the constants and types below are
546
# all from the gnutls/gnutls.h C header file.
547
548
# Constants
549
E_SUCCESS = 0
550
E_INTERRUPTED = -52
551
E_AGAIN = -28
552
CRT_OPENPGP = 2
553
CRT_RAWPK = 3
554
CLIENT = 2
555
SHUT_RDWR = 0
556
CRD_CERTIFICATE = 1
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
563
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
564
565
# Types
566
class _session_int(ctypes.Structure):
567
_fields_ = []
568
session_t = ctypes.POINTER(_session_int)
569
570
class certificate_credentials_st(ctypes.Structure):
571
_fields_ = []
572
certificate_credentials_t = ctypes.POINTER(
573
certificate_credentials_st)
574
certificate_type_t = ctypes.c_int
575
576
class datum_t(ctypes.Structure):
577
_fields_ = [("data", ctypes.POINTER(ctypes.c_ubyte)),
578
("size", ctypes.c_uint)]
579
580
class _openpgp_crt_int(ctypes.Structure):
581
_fields_ = []
582
openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)
583
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
584
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
585
credentials_type_t = ctypes.c_int
586
transport_ptr_t = ctypes.c_void_p
587
close_request_t = ctypes.c_int
588
589
# Exceptions
590
class Error(Exception):
591
def __init__(self, message=None, code=None, args=()):
592
# Default usage is by a message string, but if a return
593
# code is passed, convert it to a string with
594
# gnutls.strerror()
595
self.code = code
596
if message is None and code is not None:
597
message = gnutls.strerror(code).decode(
598
"utf-8", errors="replace")
599
return super(gnutls.Error, self).__init__(
600
message, *args)
601
602
class CertificateSecurityError(Error):
603
pass
604
605
class PointerTo:
606
def __init__(self, cls):
607
self.cls = cls
608
609
def from_param(self, obj):
610
if not isinstance(obj, self.cls):
611
raise TypeError("Not of type {}: {!r}"
612
.format(self.cls.__name__, obj))
613
return ctypes.byref(obj.from_param(obj))
614
615
class CastToVoidPointer:
616
def __init__(self, cls):
617
self.cls = cls
618
619
def from_param(self, obj):
620
if not isinstance(obj, self.cls):
621
raise TypeError("Not of type {}: {!r}"
622
.format(self.cls.__name__, obj))
623
return ctypes.cast(obj.from_param(obj), ctypes.c_void_p)
624
625
class With_from_param:
626
@classmethod
627
def from_param(cls, obj):
628
return obj._as_parameter_
629
630
# Classes
631
class Credentials(With_from_param):
632
def __init__(self):
633
self._as_parameter_ = gnutls.certificate_credentials_t()
634
gnutls.certificate_allocate_credentials(self)
635
self.type = gnutls.CRD_CERTIFICATE
636
637
def __del__(self):
638
gnutls.certificate_free_credentials(self)
639
640
class ClientSession(With_from_param):
641
def __init__(self, socket, credentials=None):
642
self._as_parameter_ = gnutls.session_t()
643
gnutls_flags = gnutls.CLIENT
644
if gnutls.check_version(b"3.5.6"):
645
gnutls_flags |= gnutls.NO_TICKETS
646
if gnutls.has_rawpk:
647
gnutls_flags |= gnutls.ENABLE_RAWPK
648
gnutls.init(self, gnutls_flags)
649
del gnutls_flags
650
gnutls.set_default_priority(self)
651
gnutls.transport_set_ptr(self, socket.fileno())
652
gnutls.handshake_set_private_extensions(self, True)
653
self.socket = socket
654
if credentials is None:
655
credentials = gnutls.Credentials()
656
gnutls.credentials_set(self, credentials.type,
657
credentials)
658
self.credentials = credentials
659
660
def __del__(self):
661
gnutls.deinit(self)
662
663
def handshake(self):
664
return gnutls.handshake(self)
665
666
def send(self, data):
667
data = bytes(data)
668
data_len = len(data)
669
while data_len > 0:
670
data_len -= gnutls.record_send(self, data[-data_len:],
671
data_len)
672
673
def bye(self):
674
return gnutls.bye(self, gnutls.SHUT_RDWR)
675
676
# Error handling functions
677
def _error_code(result):
678
"""A function to raise exceptions on errors, suitable
679
for the "restype" attribute on ctypes functions"""
680
if result >= gnutls.E_SUCCESS:
681
return result
682
if result == gnutls.E_NO_CERTIFICATE_FOUND:
683
raise gnutls.CertificateSecurityError(code=result)
684
raise gnutls.Error(code=result)
685
686
def _retry_on_error(result, func, arguments,
687
_error_code=_error_code):
688
"""A function to retry on some errors, suitable
689
for the "errcheck" attribute on ctypes functions"""
690
while result < gnutls.E_SUCCESS:
691
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
692
return _error_code(result)
693
result = func(*arguments)
694
return result
695
696
# Unless otherwise indicated, the function declarations below are
697
# all from the gnutls/gnutls.h C header file.
698
699
# Functions
700
priority_set_direct = _library.gnutls_priority_set_direct
701
priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,
702
ctypes.POINTER(ctypes.c_char_p)]
703
priority_set_direct.restype = _error_code
704
705
init = _library.gnutls_init
706
init.argtypes = [PointerTo(ClientSession), ctypes.c_int]
707
init.restype = _error_code
708
709
set_default_priority = _library.gnutls_set_default_priority
710
set_default_priority.argtypes = [ClientSession]
711
set_default_priority.restype = _error_code
712
713
record_send = _library.gnutls_record_send
714
record_send.argtypes = [ClientSession, ctypes.c_void_p,
715
ctypes.c_size_t]
716
record_send.restype = ctypes.c_ssize_t
717
record_send.errcheck = _retry_on_error
718
719
certificate_allocate_credentials = (
720
_library.gnutls_certificate_allocate_credentials)
721
certificate_allocate_credentials.argtypes = [
722
PointerTo(Credentials)]
723
certificate_allocate_credentials.restype = _error_code
724
725
certificate_free_credentials = (
726
_library.gnutls_certificate_free_credentials)
727
certificate_free_credentials.argtypes = [Credentials]
728
certificate_free_credentials.restype = None
729
730
handshake_set_private_extensions = (
731
_library.gnutls_handshake_set_private_extensions)
732
handshake_set_private_extensions.argtypes = [ClientSession,
733
ctypes.c_int]
734
handshake_set_private_extensions.restype = None
735
736
credentials_set = _library.gnutls_credentials_set
737
credentials_set.argtypes = [ClientSession, credentials_type_t,
738
CastToVoidPointer(Credentials)]
739
credentials_set.restype = _error_code
740
741
strerror = _library.gnutls_strerror
742
strerror.argtypes = [ctypes.c_int]
743
strerror.restype = ctypes.c_char_p
744
745
certificate_type_get = _library.gnutls_certificate_type_get
746
certificate_type_get.argtypes = [ClientSession]
747
certificate_type_get.restype = _error_code
748
749
certificate_get_peers = _library.gnutls_certificate_get_peers
750
certificate_get_peers.argtypes = [ClientSession,
751
ctypes.POINTER(ctypes.c_uint)]
752
certificate_get_peers.restype = ctypes.POINTER(datum_t)
753
754
global_set_log_level = _library.gnutls_global_set_log_level
755
global_set_log_level.argtypes = [ctypes.c_int]
756
global_set_log_level.restype = None
757
758
global_set_log_function = _library.gnutls_global_set_log_function
759
global_set_log_function.argtypes = [log_func]
760
global_set_log_function.restype = None
761
762
deinit = _library.gnutls_deinit
763
deinit.argtypes = [ClientSession]
764
deinit.restype = None
765
766
handshake = _library.gnutls_handshake
767
handshake.argtypes = [ClientSession]
768
handshake.restype = ctypes.c_int
769
handshake.errcheck = _retry_on_error
770
771
transport_set_ptr = _library.gnutls_transport_set_ptr
772
transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]
773
transport_set_ptr.restype = None
774
775
bye = _library.gnutls_bye
776
bye.argtypes = [ClientSession, close_request_t]
777
bye.restype = ctypes.c_int
778
bye.errcheck = _retry_on_error
779
780
check_version = _library.gnutls_check_version
781
check_version.argtypes = [ctypes.c_char_p]
782
check_version.restype = ctypes.c_char_p
783
784
_need_version = b"3.3.0"
785
if check_version(_need_version) is None:
786
raise self.Error("Needs GnuTLS {} or later"
787
.format(_need_version))
788
789
_tls_rawpk_version = b"3.6.6"
790
has_rawpk = bool(check_version(_tls_rawpk_version))
791
792
if has_rawpk:
793
# Types
794
class pubkey_st(ctypes.Structure):
795
_fields = []
796
pubkey_t = ctypes.POINTER(pubkey_st)
797
798
x509_crt_fmt_t = ctypes.c_int
799
800
# All the function declarations below are from
801
# gnutls/abstract.h
802
pubkey_init = _library.gnutls_pubkey_init
803
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
804
pubkey_init.restype = _error_code
805
806
pubkey_import = _library.gnutls_pubkey_import
807
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
808
x509_crt_fmt_t]
809
pubkey_import.restype = _error_code
810
811
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
812
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
813
ctypes.POINTER(ctypes.c_ubyte),
814
ctypes.POINTER(ctypes.c_size_t)]
815
pubkey_get_key_id.restype = _error_code
816
817
pubkey_deinit = _library.gnutls_pubkey_deinit
818
pubkey_deinit.argtypes = [pubkey_t]
819
pubkey_deinit.restype = None
820
else:
821
# All the function declarations below are from
822
# gnutls/openpgp.h
823
824
openpgp_crt_init = _library.gnutls_openpgp_crt_init
825
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
826
openpgp_crt_init.restype = _error_code
827
828
openpgp_crt_import = _library.gnutls_openpgp_crt_import
829
openpgp_crt_import.argtypes = [openpgp_crt_t,
830
ctypes.POINTER(datum_t),
831
openpgp_crt_fmt_t]
832
openpgp_crt_import.restype = _error_code
833
834
openpgp_crt_verify_self = \
835
_library.gnutls_openpgp_crt_verify_self
836
openpgp_crt_verify_self.argtypes = [
837
openpgp_crt_t,
838
ctypes.c_uint,
839
ctypes.POINTER(ctypes.c_uint),
840
]
841
openpgp_crt_verify_self.restype = _error_code
842
843
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
844
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
845
openpgp_crt_deinit.restype = None
846
847
openpgp_crt_get_fingerprint = (
848
_library.gnutls_openpgp_crt_get_fingerprint)
849
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
850
ctypes.c_void_p,
851
ctypes.POINTER(
852
ctypes.c_size_t)]
853
openpgp_crt_get_fingerprint.restype = _error_code
854
855
if check_version(b"3.6.4"):
856
certificate_type_get2 = _library.gnutls_certificate_type_get2
857
certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]
858
certificate_type_get2.restype = _error_code
859
860
# Remove non-public functions
861
del _error_code, _retry_on_error
862
863
864
438
def call_pipe(connection, # : multiprocessing.Connection
865
439
func, *args, **kwargs):
866
440
"""This function is meant to be called by multiprocessing.Process
867
441
868
442
This function runs func(*args, **kwargs), and writes the resulting
869
443
return value on the provided multiprocessing.Connection.
870
444
"""
871
445
connection.send(func(*args, **kwargs))
872
446
connection.close()
873
447
874
875
class Client:
448
class Client(object):
876
449
"""A representation of a client host served by this server.
877
450
878
451
Attributes:
879
approved: bool(); None if not yet approved/disapproved
452
approved: bool(); 'None' if not yet approved/disapproved
880
453
approval_delay: datetime.timedelta(); Time to wait for approval
881
454
approval_duration: datetime.timedelta(); Duration of one approval
882
checker: multiprocessing.Process(); a running checker process used
883
to see if the client lives. None if no process is
884
running.
885
checker_callback_tag: a GLib event source tag, or None
455
checker: subprocess.Popen(); a running checker process used
456
to see if the client lives.
457
'None' if no process is running.
458
checker_callback_tag: a gobject event source tag, or None
886
459
checker_command: string; External command which is run to check
887
460
if client lives. %() expansions are done at
888
461
runtime with vars(self) as dict, so that for
889
462
instance %(name)s can be used in the command.
890
checker_initiator_tag: a GLib event source tag, or None
463
checker_initiator_tag: a gobject event source tag, or None
891
464
created: datetime.datetime(); (UTC) object creation
892
465
client_structure: Object describing what attributes a client has
893
466
and is used for storing the client at exit
894
467
current_checker_command: string; current running checker_command
895
disable_initiator_tag: a GLib event source tag, or None
468
disable_initiator_tag: a gobject event source tag, or None
896
469
enabled: bool()
897
470
fingerprint: string (40 or 32 hexadecimal digits); used to
898
uniquely identify an OpenPGP client
899
key_id: string (64 hexadecimal digits); used to uniquely identify
900
a client using raw public keys
471
uniquely identify the client
901
472
host: string; available for use by the checker command
902
473
interval: datetime.timedelta(); How often to start a new checker
903
474
last_approval_request: datetime.datetime(); (UTC) or None
919
490
disabled, or None
920
491
server_settings: The server_settings dict from main()
921
492
"""
922
493
923
494
runtime_expansions = ("approval_delay", "approval_duration",
924
"created", "enabled", "expires", "key_id",
495
"created", "enabled", "expires",
925
496
"fingerprint", "host", "interval",
926
497
"last_approval_request", "last_checked_ok",
927
498
"last_enabled", "name", "timeout")
936
507
"approved_by_default": "True",
937
508
"enabled": "True",
938
509
}
939
510
940
511
@staticmethod
941
512
def config_parser(config):
942
513
"""Construct a new dict of client settings of this form:
949
520
for client_name in config.sections():
950
521
section = dict(config.items(client_name))
951
522
client = settings[client_name] = {}
952
523
953
524
client["host"] = section["host"]
954
525
# Reformat values from string types to Python types
955
526
client["approved_by_default"] = config.getboolean(
956
527
client_name, "approved_by_default")
957
528
client["enabled"] = config.getboolean(client_name,
958
529
"enabled")
959
960
# Uppercase and remove spaces from key_id and fingerprint
961
# for later comparison purposes with return value from the
962
# key_id() and fingerprint() functions
963
client["key_id"] = (section.get("key_id", "").upper()
964
.replace(" ", ""))
530
531
# Uppercase and remove spaces from fingerprint for later
532
# comparison purposes with return value from the
533
# fingerprint() function
965
534
client["fingerprint"] = (section["fingerprint"].upper()
966
535
.replace(" ", ""))
967
536
if "secret" in section:
968
client["secret"] = codecs.decode(section["secret"]
969
.encode("utf-8"),
970
"base64")
537
client["secret"] = section["secret"].decode("base64")
971
538
elif "secfile" in section:
972
539
with open(os.path.expanduser(os.path.expandvars
973
540
(section["secfile"])),
988
555
client["last_approval_request"] = None
989
556
client["last_checked_ok"] = None
990
557
client["last_checker_status"] = -2
991
558
992
559
return settings
993
994
def __init__(self, settings, name=None, server_settings=None):
560
561
def __init__(self, settings, name = None, server_settings=None):
995
562
self.name = name
996
563
if server_settings is None:
997
564
server_settings = {}
999
566
# adding all client settings
1000
567
for setting, value in settings.items():
1001
568
setattr(self, setting, value)
1002
569
1003
570
if self.enabled:
1004
571
if not hasattr(self, "last_enabled"):
1005
572
self.last_enabled = datetime.datetime.utcnow()
1009
576
else:
1010
577
self.last_enabled = None
1011
578
self.expires = None
1012
579
1013
580
logger.debug("Creating client %r", self.name)
1014
logger.debug(" Key ID: %s", self.key_id)
1015
581
logger.debug(" Fingerprint: %s", self.fingerprint)
1016
582
self.created = settings.get("created",
1017
583
datetime.datetime.utcnow())
1018
584
1019
585
# attributes specific for this server instance
1020
586
self.checker = None
1021
587
self.checker_initiator_tag = None
1027
593
self.changedstate = multiprocessing_manager.Condition(
1028
594
multiprocessing_manager.Lock())
1029
595
self.client_structure = [attr
1030
for attr in self.__dict__.keys()
596
for attr in self.__dict__.iterkeys()
1031
597
if not attr.startswith("_")]
1032
598
self.client_structure.append("client_structure")
1033
599
1034
600
for name, t in inspect.getmembers(
1035
601
type(self), lambda obj: isinstance(obj, property)):
1036
602
if not name.startswith("_"):
1037
603
self.client_structure.append(name)
1038
604
1039
605
# Send notice to process children that client state has changed
1040
606
def send_changedstate(self):
1041
607
with self.changedstate:
1042
608
self.changedstate.notify_all()
1043
609
1044
610
def enable(self):
1045
611
"""Start this client's checker and timeout hooks"""
1046
612
if getattr(self, "enabled", False):
1051
617
self.last_enabled = datetime.datetime.utcnow()
1052
618
self.init_checker()
1053
619
self.send_changedstate()
1054
620
1055
621
def disable(self, quiet=True):
1056
622
"""Disable this client."""
1057
623
if not getattr(self, "enabled", False):
1059
625
if not quiet:
1060
626
logger.info("Disabling client %s", self.name)
1061
627
if getattr(self, "disable_initiator_tag", None) is not None:
1062
GLib.source_remove(self.disable_initiator_tag)
628
gobject.source_remove(self.disable_initiator_tag)
1063
629
self.disable_initiator_tag = None
1064
630
self.expires = None
1065
631
if getattr(self, "checker_initiator_tag", None) is not None:
1066
GLib.source_remove(self.checker_initiator_tag)
632
gobject.source_remove(self.checker_initiator_tag)
1067
633
self.checker_initiator_tag = None
1068
634
self.stop_checker()
1069
635
self.enabled = False
1070
636
if not quiet:
1071
637
self.send_changedstate()
1072
# Do not run this again if called by a GLib.timeout_add
638
# Do not run this again if called by a gobject.timeout_add
1073
639
return False
1074
640
1075
641
def __del__(self):
1076
642
self.disable()
1077
643
1078
644
def init_checker(self):
1079
645
# Schedule a new checker to be started an 'interval' from now,
1080
646
# and every interval from then on.
1081
647
if self.checker_initiator_tag is not None:
1082
GLib.source_remove(self.checker_initiator_tag)
1083
self.checker_initiator_tag = GLib.timeout_add(
1084
random.randrange(int(self.interval.total_seconds() * 1000
1085
+ 1)),
648
gobject.source_remove(self.checker_initiator_tag)
649
self.checker_initiator_tag = gobject.timeout_add(
650
int(self.interval.total_seconds() * 1000),
1086
651
self.start_checker)
1087
652
# Schedule a disable() when 'timeout' has passed
1088
653
if self.disable_initiator_tag is not None:
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = GLib.timeout_add(
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = gobject.timeout_add(
1091
656
int(self.timeout.total_seconds() * 1000), self.disable)
1092
657
# Also start a new checker *right now*.
1093
658
self.start_checker()
1094
659
1095
660
def checker_callback(self, source, condition, connection,
1096
661
command):
1097
662
"""The checker has completed, so take appropriate actions."""
663
self.checker_callback_tag = None
664
self.checker = None
1098
665
# Read return code from connection (see call_pipe)
1099
666
returncode = connection.recv()
1100
667
connection.close()
1101
if self.checker is not None:
1102
self.checker.join()
1103
self.checker_callback_tag = None
1104
self.checker = None
1105
668
1106
669
if returncode >= 0:
1107
670
self.last_checker_status = returncode
1108
671
self.last_checker_signal = None
1118
681
logger.warning("Checker for %(name)s crashed?",
1119
682
vars(self))
1120
683
return False
1121
684
1122
685
def checked_ok(self):
1123
686
"""Assert that the client has been seen, alive and well."""
1124
687
self.last_checked_ok = datetime.datetime.utcnow()
1125
688
self.last_checker_status = 0
1126
689
self.last_checker_signal = None
1127
690
self.bump_timeout()
1128
691
1129
692
def bump_timeout(self, timeout=None):
1130
693
"""Bump up the timeout for this client."""
1131
694
if timeout is None:
1132
695
timeout = self.timeout
1133
696
if self.disable_initiator_tag is not None:
1134
GLib.source_remove(self.disable_initiator_tag)
697
gobject.source_remove(self.disable_initiator_tag)
1135
698
self.disable_initiator_tag = None
1136
699
if getattr(self, "enabled", False):
1137
self.disable_initiator_tag = GLib.timeout_add(
700
self.disable_initiator_tag = gobject.timeout_add(
1138
701
int(timeout.total_seconds() * 1000), self.disable)
1139
702
self.expires = datetime.datetime.utcnow() + timeout
1140
703
1141
704
def need_approval(self):
1142
705
self.last_approval_request = datetime.datetime.utcnow()
1143
706
1144
707
def start_checker(self):
1145
708
"""Start a new checker subprocess if one is not running.
1146
709
1147
710
If a checker already exists, leave it running and do
1148
711
nothing."""
1149
712
# The reason for not killing a running checker is that if we
1154
717
# checkers alone, the checker would have to take more time
1155
718
# than 'timeout' for the client to be disabled, which is as it
1156
719
# should be.
1157
720
1158
721
if self.checker is not None and not self.checker.is_alive():
1159
722
logger.warning("Checker was not alive; joining")
1160
723
self.checker.join()
1163
726
if self.checker is None:
1164
727
# Escape attributes for the shell
1165
728
escaped_attrs = {
1166
attr: shlex.quote(str(getattr(self, attr)))
1167
for attr in self.runtime_expansions}
729
attr: re.escape(str(getattr(self, attr)))
730
for attr in self.runtime_expansions }
1168
731
try:
1169
732
command = self.checker_command % escaped_attrs
1170
733
except TypeError as error:
1182
745
# The exception is when not debugging but nevertheless
1183
746
# running in the foreground; use the previously
1184
747
# created wnull.
1185
popen_args = {"close_fds": True,
1186
"shell": True,
1187
"cwd": "/"}
748
popen_args = { "close_fds": True,
749
"shell": True,
750
"cwd": "/" }
1188
751
if (not self.server_settings["debug"]
1189
752
and self.server_settings["foreground"]):
1190
753
popen_args.update({"stdout": wnull,
1191
"stderr": wnull})
1192
pipe = multiprocessing.Pipe(duplex=False)
754
"stderr": wnull })
755
pipe = multiprocessing.Pipe(duplex = False)
1193
756
self.checker = multiprocessing.Process(
1194
target=call_pipe,
1195
args=(pipe[1], subprocess.call, command),
1196
kwargs=popen_args)
757
target = call_pipe,
758
args = (pipe[1], subprocess.call, command),
759
kwargs = popen_args)
1197
760
self.checker.start()
1198
self.checker_callback_tag = GLib.io_add_watch(
1199
GLib.IOChannel.unix_new(pipe[0].fileno()),
1200
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
761
self.checker_callback_tag = gobject.io_add_watch(
762
pipe[0].fileno(), gobject.IO_IN,
1201
763
self.checker_callback, pipe[0], command)
1202
# Re-run this periodically if run by GLib.timeout_add
764
# Re-run this periodically if run by gobject.timeout_add
1203
765
return True
1204
766
1205
767
def stop_checker(self):
1206
768
"""Force the checker process, if any, to stop."""
1207
769
if self.checker_callback_tag:
1208
GLib.source_remove(self.checker_callback_tag)
770
gobject.source_remove(self.checker_callback_tag)
1209
771
self.checker_callback_tag = None
1210
772
if getattr(self, "checker", None) is None:
1211
773
return
1220
782
byte_arrays=False):
1221
783
"""Decorators for marking methods of a DBusObjectWithProperties to
1222
784
become properties on the D-Bus.
1223
785
1224
786
The decorated method will be called with no arguments by "Get"
1225
787
and with one argument by "Set".
1226
788
1227
789
The parameters, where they are supported, are the same as
1228
790
dbus.service.method, except there is only "signature", since the
1229
791
type from Get() and the type sent to Set() is the same.
1233
795
if byte_arrays and signature != "ay":
1234
796
raise ValueError("Byte arrays not supported for non-'ay'"
1235
797
" signature {!r}".format(signature))
1236
798
1237
799
def decorator(func):
1238
800
func._dbus_is_property = True
1239
801
func._dbus_interface = dbus_interface
1242
804
func._dbus_name = func.__name__
1243
805
if func._dbus_name.endswith("_dbus_property"):
1244
806
func._dbus_name = func._dbus_name[:-14]
1245
func._dbus_get_args_options = {"byte_arrays": byte_arrays}
807
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1246
808
return func
1247
809
1248
810
return decorator
1249
811
1250
812
1251
813
def dbus_interface_annotations(dbus_interface):
1252
814
"""Decorator for marking functions returning interface annotations
1253
815
1254
816
Usage:
1255
817
1256
818
@dbus_interface_annotations("org.example.Interface")
1257
819
def _foo(self): # Function name does not matter
1258
820
return {"org.freedesktop.DBus.Deprecated": "true",
1259
821
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1260
822
"false"}
1261
823
"""
1262
824
1263
825
def decorator(func):
1264
826
func._dbus_is_interface = True
1265
827
func._dbus_interface = dbus_interface
1266
828
func._dbus_name = dbus_interface
1267
829
return func
1268
830
1269
831
return decorator
1270
832
1271
833
1272
834
def dbus_annotations(annotations):
1273
835
"""Decorator to annotate D-Bus methods, signals or properties
1274
836
Usage:
1275
837
1276
838
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1277
839
"org.freedesktop.DBus.Property."
1278
840
"EmitsChangedSignal": "false"})
1280
842
access="r")
1281
843
def Property_dbus_property(self):
1282
844
return dbus.Boolean(False)
1283
845
1284
846
See also the DBusObjectWithAnnotations class.
1285
847
"""
1286
848
1287
849
def decorator(func):
1288
850
func._dbus_annotations = annotations
1289
851
return func
1290
852
1291
853
return decorator
1292
854
1293
855
1311
873
1312
874
class DBusObjectWithAnnotations(dbus.service.Object):
1313
875
"""A D-Bus object with annotations.
1314
876
1315
877
Classes inheriting from this can use the dbus_annotations
1316
878
decorator to add annotations to methods or signals.
1317
879
"""
1318
880
1319
881
@staticmethod
1320
882
def _is_dbus_thing(thing):
1321
883
"""Returns a function testing if an attribute is a D-Bus thing
1322
884
1323
885
If called like _is_dbus_thing("method") it returns a function
1324
886
suitable for use as predicate to inspect.getmembers().
1325
887
"""
1326
888
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1327
889
False)
1328
890
1329
891
def _get_all_dbus_things(self, thing):
1330
892
"""Returns a generator of (name, attribute) pairs
1331
893
"""
1334
896
for cls in self.__class__.__mro__
1335
897
for name, athing in
1336
898
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1337
899
1338
900
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1339
out_signature="s",
1340
path_keyword="object_path",
1341
connection_keyword="connection")
901
out_signature = "s",
902
path_keyword = 'object_path',
903
connection_keyword = 'connection')
1342
904
def Introspect(self, object_path, connection):
1343
905
"""Overloading of standard D-Bus method.
1344
906
1345
907
Inserts annotation tags on methods and signals.
1346
908
"""
1347
909
xmlstring = dbus.service.Object.Introspect(self, object_path,
1348
910
connection)
1349
911
try:
1350
912
document = xml.dom.minidom.parseString(xmlstring)
1351
913
1352
914
for if_tag in document.getElementsByTagName("interface"):
1353
915
# Add annotation tags
1354
916
for typ in ("method", "signal"):
1381
943
if_tag.appendChild(ann_tag)
1382
944
# Fix argument name for the Introspect method itself
1383
945
if (if_tag.getAttribute("name")
1384
== dbus.INTROSPECTABLE_IFACE):
946
== dbus.INTROSPECTABLE_IFACE):
1385
947
for cn in if_tag.getElementsByTagName("method"):
1386
948
if cn.getAttribute("name") == "Introspect":
1387
949
for arg in cn.getElementsByTagName("arg"):
1400
962
1401
963
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1402
964
"""A D-Bus object with properties.
1403
965
1404
966
Classes inheriting from this can use the dbus_service_property
1405
967
decorator to expose methods as D-Bus properties. It exposes the
1406
968
standard Get(), Set(), and GetAll() methods on the D-Bus.
1407
969
"""
1408
970
1409
971
def _get_dbus_property(self, interface_name, property_name):
1410
972
"""Returns a bound method if one exists which is a D-Bus
1411
973
property with the specified name and interface.
1416
978
if (value._dbus_name == property_name
1417
979
and value._dbus_interface == interface_name):
1418
980
return value.__get__(self)
1419
981
1420
982
# No such property
1421
983
raise DBusPropertyNotFound("{}:{}.{}".format(
1422
984
self.dbus_object_path, interface_name, property_name))
1423
985
1424
986
@classmethod
1425
987
def _get_all_interface_names(cls):
1426
988
"""Get a sequence of all interfaces supported by an object"""
1429
991
for x in (inspect.getmro(cls))
1430
992
for attr in dir(x))
1431
993
if name is not None)
1432
994
1433
995
@dbus.service.method(dbus.PROPERTIES_IFACE,
1434
996
in_signature="ss",
1435
997
out_signature="v")
1443
1005
if not hasattr(value, "variant_level"):
1444
1006
return value
1445
1007
return type(value)(value, variant_level=value.variant_level+1)
1446
1008
1447
1009
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1448
1010
def Set(self, interface_name, property_name, value):
1449
1011
"""Standard D-Bus property Set() method, see D-Bus standard.
1458
1020
raise ValueError("Byte arrays not supported for non-"
1459
1021
"'ay' signature {!r}"
1460
1022
.format(prop._dbus_signature))
1461
value = dbus.ByteArray(bytes(value))
1023
value = dbus.ByteArray(b''.join(chr(byte)
1024
for byte in value))
1462
1025
prop(value)
1463
1026
1464
1027
@dbus.service.method(dbus.PROPERTIES_IFACE,
1465
1028
in_signature="s",
1466
1029
out_signature="a{sv}")
1467
1030
def GetAll(self, interface_name):
1468
1031
"""Standard D-Bus property GetAll() method, see D-Bus
1469
1032
standard.
1470
1033
1471
1034
Note: Will not include properties with access="write".
1472
1035
"""
1473
1036
properties = {}
1484
1047
properties[name] = value
1485
1048
continue
1486
1049
properties[name] = type(value)(
1487
value, variant_level=value.variant_level + 1)
1050
value, variant_level = value.variant_level + 1)
1488
1051
return dbus.Dictionary(properties, signature="sv")
1489
1052
1490
1053
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1491
1054
def PropertiesChanged(self, interface_name, changed_properties,
1492
1055
invalidated_properties):
1494
1057
standard.
1495
1058
"""
1496
1059
pass
1497
1060
1498
1061
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1499
1062
out_signature="s",
1500
path_keyword="object_path",
1501
connection_keyword="connection")
1063
path_keyword='object_path',
1064
connection_keyword='connection')
1502
1065
def Introspect(self, object_path, connection):
1503
1066
"""Overloading of standard D-Bus method.
1504
1067
1505
1068
Inserts property tags and interface annotation tags.
1506
1069
"""
1507
1070
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1509
1072
connection)
1510
1073
try:
1511
1074
document = xml.dom.minidom.parseString(xmlstring)
1512
1075
1513
1076
def make_tag(document, name, prop):
1514
1077
e = document.createElement("property")
1515
1078
e.setAttribute("name", name)
1516
1079
e.setAttribute("type", prop._dbus_signature)
1517
1080
e.setAttribute("access", prop._dbus_access)
1518
1081
return e
1519
1082
1520
1083
for if_tag in document.getElementsByTagName("interface"):
1521
1084
# Add property tags
1522
1085
for tag in (make_tag(document, name, prop)
1564
1127
exc_info=error)
1565
1128
return xmlstring
1566
1129
1567
1568
1130
try:
1569
1131
dbus.OBJECT_MANAGER_IFACE
1570
1132
except AttributeError:
1571
1133
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1572
1134
1573
1574
1135
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1575
1136
"""A D-Bus object with an ObjectManager.
1576
1137
1577
1138
Classes inheriting from this exposes the standard
1578
1139
GetManagedObjects call and the InterfacesAdded and
1579
1140
InterfacesRemoved signals on the standard
1580
1141
"org.freedesktop.DBus.ObjectManager" interface.
1581
1142
1582
1143
Note: No signals are sent automatically; they must be sent
1583
1144
manually.
1584
1145
"""
1585
1146
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1586
out_signature="a{oa{sa{sv}}}")
1147
out_signature = "a{oa{sa{sv}}}")
1587
1148
def GetManagedObjects(self):
1588
1149
"""This function must be overridden"""
1589
1150
raise NotImplementedError()
1590
1151
1591
1152
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1592
signature="oa{sa{sv}}")
1153
signature = "oa{sa{sv}}")
1593
1154
def InterfacesAdded(self, object_path, interfaces_and_properties):
1594
1155
pass
1595
1596
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1156
1157
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1597
1158
def InterfacesRemoved(self, object_path, interfaces):
1598
1159
pass
1599
1160
1600
1161
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1601
out_signature="s",
1602
path_keyword="object_path",
1603
connection_keyword="connection")
1162
out_signature = "s",
1163
path_keyword = 'object_path',
1164
connection_keyword = 'connection')
1604
1165
def Introspect(self, object_path, connection):
1605
1166
"""Overloading of standard D-Bus method.
1606
1167
1607
1168
Override return argument name of GetManagedObjects to be
1608
1169
"objpath_interfaces_and_properties"
1609
1170
"""
1612
1173
connection)
1613
1174
try:
1614
1175
document = xml.dom.minidom.parseString(xmlstring)
1615
1176
1616
1177
for if_tag in document.getElementsByTagName("interface"):
1617
1178
# Fix argument name for the GetManagedObjects method
1618
1179
if (if_tag.getAttribute("name")
1619
== dbus.OBJECT_MANAGER_IFACE):
1180
== dbus.OBJECT_MANAGER_IFACE):
1620
1181
for cn in if_tag.getElementsByTagName("method"):
1621
1182
if (cn.getAttribute("name")
1622
1183
== "GetManagedObjects"):
1632
1193
except (AttributeError, xml.dom.DOMException,
1633
1194
xml.parsers.expat.ExpatError) as error:
1634
1195
logger.error("Failed to override Introspection method",
1635
exc_info=error)
1196
exc_info = error)
1636
1197
return xmlstring
1637
1198
1638
1639
1199
def datetime_to_dbus(dt, variant_level=0):
1640
1200
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1641
1201
if dt is None:
1642
return dbus.String("", variant_level=variant_level)
1202
return dbus.String("", variant_level = variant_level)
1643
1203
return dbus.String(dt.isoformat(), variant_level=variant_level)
1644
1204
1645
1205
1648
1208
dbus.service.Object, it will add alternate D-Bus attributes with
1649
1209
interface names according to the "alt_interface_names" mapping.
1650
1210
Usage:
1651
1211
1652
1212
@alternate_dbus_interfaces({"org.example.Interface":
1653
1213
"net.example.AlternateInterface"})
1654
1214
class SampleDBusObject(dbus.service.Object):
1655
1215
@dbus.service.method("org.example.Interface")
1656
1216
def SampleDBusMethod():
1657
1217
pass
1658
1218
1659
1219
The above "SampleDBusMethod" on "SampleDBusObject" will be
1660
1220
reachable via two interfaces: "org.example.Interface" and
1661
1221
"net.example.AlternateInterface", the latter of which will have
1662
1222
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1663
1223
"true", unless "deprecate" is passed with a False value.
1664
1224
1665
1225
This works for methods and signals, and also for D-Bus properties
1666
1226
(from DBusObjectWithProperties) and interfaces (from the
1667
1227
dbus_interface_annotations decorator).
1668
1228
"""
1669
1229
1670
1230
def wrapper(cls):
1671
1231
for orig_interface_name, alt_interface_name in (
1672
1232
alt_interface_names.items()):
1687
1247
interface_names.add(alt_interface)
1688
1248
# Is this a D-Bus signal?
1689
1249
if getattr(attribute, "_dbus_is_signal", False):
1690
# Extract the original non-method undecorated
1691
# function by black magic
1692
1250
if sys.version_info.major == 2:
1251
# Extract the original non-method undecorated
1252
# function by black magic
1693
1253
nonmethod_func = (dict(
1694
1254
zip(attribute.func_code.co_freevars,
1695
1255
attribute.__closure__))
1696
1256
["func"].cell_contents)
1697
1257
else:
1698
nonmethod_func = (dict(
1699
zip(attribute.__code__.co_freevars,
1700
attribute.__closure__))
1701
["func"].cell_contents)
1258
nonmethod_func = attribute
1702
1259
# Create a new, but exactly alike, function
1703
1260
# object, and decorate it to be a new D-Bus signal
1704
1261
# with the alternate D-Bus interface name
1705
new_function = copy_function(nonmethod_func)
1262
if sys.version_info.major == 2:
1263
new_function = types.FunctionType(
1264
nonmethod_func.func_code,
1265
nonmethod_func.func_globals,
1266
nonmethod_func.func_name,
1267
nonmethod_func.func_defaults,
1268
nonmethod_func.func_closure)
1269
else:
1270
new_function = types.FunctionType(
1271
nonmethod_func.__code__,
1272
nonmethod_func.__globals__,
1273
nonmethod_func.__name__,
1274
nonmethod_func.__defaults__,
1275
nonmethod_func.__closure__)
1706
1276
new_function = (dbus.service.signal(
1707
1277
alt_interface,
1708
1278
attribute._dbus_signature)(new_function))
1712
1282
attribute._dbus_annotations)
1713
1283
except AttributeError:
1714
1284
pass
1715
1716
1285
# Define a creator of a function to call both the
1717
1286
# original and alternate functions, so both the
1718
1287
# original and alternate signals gets sent when
1721
1290
"""This function is a scope container to pass
1722
1291
func1 and func2 to the "call_both" function
1723
1292
outside of its arguments"""
1724
1293
1725
1294
@functools.wraps(func2)
1726
1295
def call_both(*args, **kwargs):
1727
1296
"""This function will emit two D-Bus
1728
1297
signals by calling func1 and func2"""
1729
1298
func1(*args, **kwargs)
1730
1299
func2(*args, **kwargs)
1731
# Make wrapper function look like a D-Bus
1732
# signal
1300
# Make wrapper function look like a D-Bus signal
1733
1301
for name, attr in inspect.getmembers(func2):
1734
1302
if name.startswith("_dbus_"):
1735
1303
setattr(call_both, name, attr)
1736
1304
1737
1305
return call_both
1738
1306
# Create the "call_both" function and add it to
1739
1307
# the class
1749
1317
alt_interface,
1750
1318
attribute._dbus_in_signature,
1751
1319
attribute._dbus_out_signature)
1752
(copy_function(attribute)))
1320
(types.FunctionType(attribute.func_code,
1321
attribute.func_globals,
1322
attribute.func_name,
1323
attribute.func_defaults,
1324
attribute.func_closure)))
1753
1325
# Copy annotations, if any
1754
1326
try:
1755
1327
attr[attrname]._dbus_annotations = dict(
1767
1339
attribute._dbus_access,
1768
1340
attribute._dbus_get_args_options
1769
1341
["byte_arrays"])
1770
(copy_function(attribute)))
1342
(types.FunctionType(
1343
attribute.func_code,
1344
attribute.func_globals,
1345
attribute.func_name,
1346
attribute.func_defaults,
1347
attribute.func_closure)))
1771
1348
# Copy annotations, if any
1772
1349
try:
1773
1350
attr[attrname]._dbus_annotations = dict(
1782
1359
# to the class.
1783
1360
attr[attrname] = (
1784
1361
dbus_interface_annotations(alt_interface)
1785
(copy_function(attribute)))
1362
(types.FunctionType(attribute.func_code,
1363
attribute.func_globals,
1364
attribute.func_name,
1365
attribute.func_defaults,
1366
attribute.func_closure)))
1786
1367
if deprecate:
1787
1368
# Deprecate all alternate interfaces
1788
iname = "_AlternateDBusNames_interface_annotation{}"
1369
iname="_AlternateDBusNames_interface_annotation{}"
1789
1370
for interface_name in interface_names:
1790
1371
1791
1372
@dbus_interface_annotations(interface_name)
1792
1373
def func(self):
1793
return {"org.freedesktop.DBus.Deprecated":
1794
"true"}
1374
return { "org.freedesktop.DBus.Deprecated":
1375
"true" }
1795
1376
# Find an unused name
1796
1377
for aname in (iname.format(i)
1797
1378
for i in itertools.count()):
1801
1382
if interface_names:
1802
1383
# Replace the class with a new subclass of it with
1803
1384
# methods, signals, etc. as created above.
1804
if sys.version_info.major == 2:
1805
cls = type(b"{}Alternate".format(cls.__name__),
1806
(cls, ), attr)
1807
else:
1808
cls = type("{}Alternate".format(cls.__name__),
1809
(cls, ), attr)
1385
cls = type(b"{}Alternate".format(cls.__name__),
1386
(cls, ), attr)
1810
1387
return cls
1811
1388
1812
1389
return wrapper
1813
1390
1814
1391
1816
1393
"se.bsnet.fukt.Mandos"})
1817
1394
class ClientDBus(Client, DBusObjectWithProperties):
1818
1395
"""A Client class using D-Bus
1819
1396
1820
1397
Attributes:
1821
1398
dbus_object_path: dbus.ObjectPath
1822
1399
bus: dbus.SystemBus()
1823
1400
"""
1824
1401
1825
1402
runtime_expansions = (Client.runtime_expansions
1826
1403
+ ("dbus_object_path", ))
1827
1404
1828
1405
_interface = "se.recompile.Mandos.Client"
1829
1406
1830
1407
# dbus.service.Object doesn't use super(), so we can't either.
1831
1832
def __init__(self, bus=None, *args, **kwargs):
1408
1409
def __init__(self, bus = None, *args, **kwargs):
1833
1410
self.bus = bus
1834
1411
Client.__init__(self, *args, **kwargs)
1835
1412
# Only now, when this client is initialized, can it show up on
1841
1418
"/clients/" + client_object_name)
1842
1419
DBusObjectWithProperties.__init__(self, self.bus,
1843
1420
self.dbus_object_path)
1844
1421
1845
1422
def notifychangeproperty(transform_func, dbus_name,
1846
1423
type_func=lambda x: x,
1847
1424
variant_level=1,
1849
1426
_interface=_interface):
1850
1427
""" Modify a variable so that it's a property which announces
1851
1428
its changes to DBus.
1852
1429
1853
1430
transform_fun: Function that takes a value and a variant_level
1854
1431
and transforms it to a D-Bus type.
1855
1432
dbus_name: D-Bus name of the variable
1858
1435
variant_level: D-Bus variant level. Default: 1
1859
1436
"""
1860
1437
attrname = "_{}".format(dbus_name)
1861
1438
1862
1439
def setter(self, value):
1863
1440
if hasattr(self, "dbus_object_path"):
1864
1441
if (not hasattr(self, attrname) or
1871
1448
else:
1872
1449
dbus_value = transform_func(
1873
1450
type_func(value),
1874
variant_level=variant_level)
1451
variant_level = variant_level)
1875
1452
self.PropertyChanged(dbus.String(dbus_name),
1876
1453
dbus_value)
1877
1454
self.PropertiesChanged(
1878
1455
_interface,
1879
dbus.Dictionary({dbus.String(dbus_name):
1880
dbus_value}),
1456
dbus.Dictionary({ dbus.String(dbus_name):
1457
dbus_value }),
1881
1458
dbus.Array())
1882
1459
setattr(self, attrname, value)
1883
1460
1884
1461
return property(lambda self: getattr(self, attrname), setter)
1885
1462
1886
1463
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1887
1464
approvals_pending = notifychangeproperty(dbus.Boolean,
1888
1465
"ApprovalPending",
1889
type_func=bool)
1466
type_func = bool)
1890
1467
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1891
1468
last_enabled = notifychangeproperty(datetime_to_dbus,
1892
1469
"LastEnabled")
1893
1470
checker = notifychangeproperty(
1894
1471
dbus.Boolean, "CheckerRunning",
1895
type_func=lambda checker: checker is not None)
1472
type_func = lambda checker: checker is not None)
1896
1473
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1897
1474
"LastCheckedOK")
1898
1475
last_checker_status = notifychangeproperty(dbus.Int16,
1903
1480
"ApprovedByDefault")
1904
1481
approval_delay = notifychangeproperty(
1905
1482
dbus.UInt64, "ApprovalDelay",
1906
type_func=lambda td: td.total_seconds() * 1000)
1483
type_func = lambda td: td.total_seconds() * 1000)
1907
1484
approval_duration = notifychangeproperty(
1908
1485
dbus.UInt64, "ApprovalDuration",
1909
type_func=lambda td: td.total_seconds() * 1000)
1486
type_func = lambda td: td.total_seconds() * 1000)
1910
1487
host = notifychangeproperty(dbus.String, "Host")
1911
1488
timeout = notifychangeproperty(
1912
1489
dbus.UInt64, "Timeout",
1913
type_func=lambda td: td.total_seconds() * 1000)
1490
type_func = lambda td: td.total_seconds() * 1000)
1914
1491
extended_timeout = notifychangeproperty(
1915
1492
dbus.UInt64, "ExtendedTimeout",
1916
type_func=lambda td: td.total_seconds() * 1000)
1493
type_func = lambda td: td.total_seconds() * 1000)
1917
1494
interval = notifychangeproperty(
1918
1495
dbus.UInt64, "Interval",
1919
type_func=lambda td: td.total_seconds() * 1000)
1496
type_func = lambda td: td.total_seconds() * 1000)
1920
1497
checker_command = notifychangeproperty(dbus.String, "Checker")
1921
1498
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1922
1499
invalidate_only=True)
1923
1500
1924
1501
del notifychangeproperty
1925
1502
1926
1503
def __del__(self, *args, **kwargs):
1927
1504
try:
1928
1505
self.remove_from_connection()
1931
1508
if hasattr(DBusObjectWithProperties, "__del__"):
1932
1509
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1933
1510
Client.__del__(self, *args, **kwargs)
1934
1511
1935
1512
def checker_callback(self, source, condition,
1936
1513
connection, command, *args, **kwargs):
1937
1514
ret = Client.checker_callback(self, source, condition,
1953
1530
| self.last_checker_signal),
1954
1531
dbus.String(command))
1955
1532
return ret
1956
1533
1957
1534
def start_checker(self, *args, **kwargs):
1958
1535
old_checker_pid = getattr(self.checker, "pid", None)
1959
1536
r = Client.start_checker(self, *args, **kwargs)
1963
1540
# Emit D-Bus signal
1964
1541
self.CheckerStarted(self.current_checker_command)
1965
1542
return r
1966
1543
1967
1544
def _reset_approved(self):
1968
1545
self.approved = None
1969
1546
return False
1970
1547
1971
1548
def approve(self, value=True):
1972
1549
self.approved = value
1973
GLib.timeout_add(int(self.approval_duration.total_seconds()
1974
* 1000), self._reset_approved)
1550
gobject.timeout_add(int(self.approval_duration.total_seconds()
1551
* 1000), self._reset_approved)
1975
1552
self.send_changedstate()
1976
1977
# D-Bus methods, signals & properties
1978
1979
# Interfaces
1980
1981
# Signals
1982
1553
1554
## D-Bus methods, signals & properties
1555
1556
## Interfaces
1557
1558
## Signals
1559
1983
1560
# CheckerCompleted - signal
1984
1561
@dbus.service.signal(_interface, signature="nxs")
1985
1562
def CheckerCompleted(self, exitcode, waitstatus, command):
1986
1563
"D-Bus signal"
1987
1564
pass
1988
1565
1989
1566
# CheckerStarted - signal
1990
1567
@dbus.service.signal(_interface, signature="s")
1991
1568
def CheckerStarted(self, command):
1992
1569
"D-Bus signal"
1993
1570
pass
1994
1571
1995
1572
# PropertyChanged - signal
1996
1573
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1997
1574
@dbus.service.signal(_interface, signature="sv")
1998
1575
def PropertyChanged(self, property, value):
1999
1576
"D-Bus signal"
2000
1577
pass
2001
1578
2002
1579
# GotSecret - signal
2003
1580
@dbus.service.signal(_interface)
2004
1581
def GotSecret(self):
2007
1584
server to mandos-client
2008
1585
"""
2009
1586
pass
2010
1587
2011
1588
# Rejected - signal
2012
1589
@dbus.service.signal(_interface, signature="s")
2013
1590
def Rejected(self, reason):
2014
1591
"D-Bus signal"
2015
1592
pass
2016
1593
2017
1594
# NeedApproval - signal
2018
1595
@dbus.service.signal(_interface, signature="tb")
2019
1596
def NeedApproval(self, timeout, default):
2020
1597
"D-Bus signal"
2021
1598
return self.need_approval()
2022
2023
# Methods
2024
1599
1600
## Methods
1601
2025
1602
# Approve - method
2026
1603
@dbus.service.method(_interface, in_signature="b")
2027
1604
def Approve(self, value):
2028
1605
self.approve(value)
2029
1606
2030
1607
# CheckedOK - method
2031
1608
@dbus.service.method(_interface)
2032
1609
def CheckedOK(self):
2033
1610
self.checked_ok()
2034
1611
2035
1612
# Enable - method
2036
1613
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2037
1614
@dbus.service.method(_interface)
2038
1615
def Enable(self):
2039
1616
"D-Bus method"
2040
1617
self.enable()
2041
1618
2042
1619
# StartChecker - method
2043
1620
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2044
1621
@dbus.service.method(_interface)
2045
1622
def StartChecker(self):
2046
1623
"D-Bus method"
2047
1624
self.start_checker()
2048
1625
2049
1626
# Disable - method
2050
1627
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2051
1628
@dbus.service.method(_interface)
2052
1629
def Disable(self):
2053
1630
"D-Bus method"
2054
1631
self.disable()
2055
1632
2056
1633
# StopChecker - method
2057
1634
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2058
1635
@dbus.service.method(_interface)
2059
1636
def StopChecker(self):
2060
1637
self.stop_checker()
2061
2062
# Properties
2063
1638
1639
## Properties
1640
2064
1641
# ApprovalPending - property
2065
1642
@dbus_service_property(_interface, signature="b", access="read")
2066
1643
def ApprovalPending_dbus_property(self):
2067
1644
return dbus.Boolean(bool(self.approvals_pending))
2068
1645
2069
1646
# ApprovedByDefault - property
2070
1647
@dbus_service_property(_interface,
2071
1648
signature="b",
2074
1651
if value is None: # get
2075
1652
return dbus.Boolean(self.approved_by_default)
2076
1653
self.approved_by_default = bool(value)
2077
1654
2078
1655
# ApprovalDelay - property
2079
1656
@dbus_service_property(_interface,
2080
1657
signature="t",
2084
1661
return dbus.UInt64(self.approval_delay.total_seconds()
2085
1662
* 1000)
2086
1663
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2087
1664
2088
1665
# ApprovalDuration - property
2089
1666
@dbus_service_property(_interface,
2090
1667
signature="t",
2094
1671
return dbus.UInt64(self.approval_duration.total_seconds()
2095
1672
* 1000)
2096
1673
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2097
1674
2098
1675
# Name - property
2099
1676
@dbus_annotations(
2100
1677
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2101
1678
@dbus_service_property(_interface, signature="s", access="read")
2102
1679
def Name_dbus_property(self):
2103
1680
return dbus.String(self.name)
2104
2105
# KeyID - property
2106
@dbus_annotations(
2107
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2108
@dbus_service_property(_interface, signature="s", access="read")
2109
def KeyID_dbus_property(self):
2110
return dbus.String(self.key_id)
2111
1681
2112
1682
# Fingerprint - property
2113
1683
@dbus_annotations(
2114
1684
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2115
1685
@dbus_service_property(_interface, signature="s", access="read")
2116
1686
def Fingerprint_dbus_property(self):
2117
1687
return dbus.String(self.fingerprint)
2118
1688
2119
1689
# Host - property
2120
1690
@dbus_service_property(_interface,
2121
1691
signature="s",
2124
1694
if value is None: # get
2125
1695
return dbus.String(self.host)
2126
1696
self.host = str(value)
2127
1697
2128
1698
# Created - property
2129
1699
@dbus_annotations(
2130
1700
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2131
1701
@dbus_service_property(_interface, signature="s", access="read")
2132
1702
def Created_dbus_property(self):
2133
1703
return datetime_to_dbus(self.created)
2134
1704
2135
1705
# LastEnabled - property
2136
1706
@dbus_service_property(_interface, signature="s", access="read")
2137
1707
def LastEnabled_dbus_property(self):
2138
1708
return datetime_to_dbus(self.last_enabled)
2139
1709
2140
1710
# Enabled - property
2141
1711
@dbus_service_property(_interface,
2142
1712
signature="b",
2148
1718
self.enable()
2149
1719
else:
2150
1720
self.disable()
2151
1721
2152
1722
# LastCheckedOK - property
2153
1723
@dbus_service_property(_interface,
2154
1724
signature="s",
2158
1728
self.checked_ok()
2159
1729
return
2160
1730
return datetime_to_dbus(self.last_checked_ok)
2161
1731
2162
1732
# LastCheckerStatus - property
2163
1733
@dbus_service_property(_interface, signature="n", access="read")
2164
1734
def LastCheckerStatus_dbus_property(self):
2165
1735
return dbus.Int16(self.last_checker_status)
2166
1736
2167
1737
# Expires - property
2168
1738
@dbus_service_property(_interface, signature="s", access="read")
2169
1739
def Expires_dbus_property(self):
2170
1740
return datetime_to_dbus(self.expires)
2171
1741
2172
1742
# LastApprovalRequest - property
2173
1743
@dbus_service_property(_interface, signature="s", access="read")
2174
1744
def LastApprovalRequest_dbus_property(self):
2175
1745
return datetime_to_dbus(self.last_approval_request)
2176
1746
2177
1747
# Timeout - property
2178
1748
@dbus_service_property(_interface,
2179
1749
signature="t",
2194
1764
if (getattr(self, "disable_initiator_tag", None)
2195
1765
is None):
2196
1766
return
2197
GLib.source_remove(self.disable_initiator_tag)
2198
self.disable_initiator_tag = GLib.timeout_add(
1767
gobject.source_remove(self.disable_initiator_tag)
1768
self.disable_initiator_tag = gobject.timeout_add(
2199
1769
int((self.expires - now).total_seconds() * 1000),
2200
1770
self.disable)
2201
1771
2202
1772
# ExtendedTimeout - property
2203
1773
@dbus_service_property(_interface,
2204
1774
signature="t",
2208
1778
return dbus.UInt64(self.extended_timeout.total_seconds()
2209
1779
* 1000)
2210
1780
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2211
1781
2212
1782
# Interval - property
2213
1783
@dbus_service_property(_interface,
2214
1784
signature="t",
2221
1791
return
2222
1792
if self.enabled:
2223
1793
# Reschedule checker run
2224
GLib.source_remove(self.checker_initiator_tag)
2225
self.checker_initiator_tag = GLib.timeout_add(
1794
gobject.source_remove(self.checker_initiator_tag)
1795
self.checker_initiator_tag = gobject.timeout_add(
2226
1796
value, self.start_checker)
2227
self.start_checker() # Start one now, too
2228
1797
self.start_checker() # Start one now, too
1798
2229
1799
# Checker - property
2230
1800
@dbus_service_property(_interface,
2231
1801
signature="s",
2234
1804
if value is None: # get
2235
1805
return dbus.String(self.checker_command)
2236
1806
self.checker_command = str(value)
2237
1807
2238
1808
# CheckerRunning - property
2239
1809
@dbus_service_property(_interface,
2240
1810
signature="b",
2246
1816
self.start_checker()
2247
1817
else:
2248
1818
self.stop_checker()
2249
1819
2250
1820
# ObjectPath - property
2251
1821
@dbus_annotations(
2252
1822
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2253
1823
"org.freedesktop.DBus.Deprecated": "true"})
2254
1824
@dbus_service_property(_interface, signature="o", access="read")
2255
1825
def ObjectPath_dbus_property(self):
2256
return self.dbus_object_path # is already a dbus.ObjectPath
2257
1826
return self.dbus_object_path # is already a dbus.ObjectPath
1827
2258
1828
# Secret = property
2259
1829
@dbus_annotations(
2260
1830
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2265
1835
byte_arrays=True)
2266
1836
def Secret_dbus_property(self, value):
2267
1837
self.secret = bytes(value)
2268
1838
2269
1839
del _interface
2270
1840
2271
1841
2272
class ProxyClient:
2273
def __init__(self, child_pipe, key_id, fpr, address):
1842
class ProxyClient(object):
1843
def __init__(self, child_pipe, fpr, address):
2274
1844
self._pipe = child_pipe
2275
self._pipe.send(("init", key_id, fpr, address))
1845
self._pipe.send(('init', fpr, address))
2276
1846
if not self._pipe.recv():
2277
raise KeyError(key_id or fpr)
2278
1847
raise KeyError(fpr)
1848
2279
1849
def __getattribute__(self, name):
2280
if name == "_pipe":
1850
if name == '_pipe':
2281
1851
return super(ProxyClient, self).__getattribute__(name)
2282
self._pipe.send(("getattr", name))
1852
self._pipe.send(('getattr', name))
2283
1853
data = self._pipe.recv()
2284
if data[0] == "data":
1854
if data[0] == 'data':
2285
1855
return data[1]
2286
if data[0] == "function":
2287
1856
if data[0] == 'function':
1857
2288
1858
def func(*args, **kwargs):
2289
self._pipe.send(("funcall", name, args, kwargs))
1859
self._pipe.send(('funcall', name, args, kwargs))
2290
1860
return self._pipe.recv()[1]
2291
1861
2292
1862
return func
2293
1863
2294
1864
def __setattr__(self, name, value):
2295
if name == "_pipe":
1865
if name == '_pipe':
2296
1866
return super(ProxyClient, self).__setattr__(name, value)
2297
self._pipe.send(("setattr", name, value))
1867
self._pipe.send(('setattr', name, value))
2298
1868
2299
1869
2300
1870
class ClientHandler(socketserver.BaseRequestHandler, object):
2301
1871
"""A class to handle client connections.
2302
1872
2303
1873
Instantiated once for each connection to handle it.
2304
1874
Note: This will run in its own forked process."""
2305
1875
2306
1876
def handle(self):
2307
1877
with contextlib.closing(self.server.child_pipe) as child_pipe:
2308
1878
logger.info("TCP connection from: %s",
2309
1879
str(self.client_address))
2310
1880
logger.debug("Pipe FD: %d",
2311
1881
self.server.child_pipe.fileno())
2312
2313
session = gnutls.ClientSession(self.request)
2314
2315
# priority = ":".join(("NONE", "+VERS-TLS1.1",
2316
# "+AES-256-CBC", "+SHA1",
2317
# "+COMP-NULL", "+CTYPE-OPENPGP",
2318
# "+DHE-DSS"))
1882
1883
session = gnutls.connection.ClientSession(
1884
self.request, gnutls.connection .X509Credentials())
1885
1886
# Note: gnutls.connection.X509Credentials is really a
1887
# generic GnuTLS certificate credentials object so long as
1888
# no X.509 keys are added to it. Therefore, we can use it
1889
# here despite using OpenPGP certificates.
1890
1891
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1892
# "+AES-256-CBC", "+SHA1",
1893
# "+COMP-NULL", "+CTYPE-OPENPGP",
1894
# "+DHE-DSS"))
2319
1895
# Use a fallback default, since this MUST be set.
2320
1896
priority = self.server.gnutls_priority
2321
1897
if priority is None:
2322
1898
priority = "NORMAL"
2323
gnutls.priority_set_direct(session,
2324
priority.encode("utf-8"), None)
2325
1899
gnutls.library.functions.gnutls_priority_set_direct(
1900
session._c_object, priority, None)
1901
2326
1902
# Start communication using the Mandos protocol
2327
1903
# Get protocol number
2328
1904
line = self.request.makefile().readline()
2333
1909
except (ValueError, IndexError, RuntimeError) as error:
2334
1910
logger.error("Unknown protocol version: %s", error)
2335
1911
return
2336
1912
2337
1913
# Start GnuTLS connection
2338
1914
try:
2339
1915
session.handshake()
2340
except gnutls.Error as error:
1916
except gnutls.errors.GNUTLSError as error:
2341
1917
logger.warning("Handshake failed: %s", error)
2342
1918
# Do not run session.bye() here: the session is not
2343
1919
# established. Just abandon the request.
2344
1920
return
2345
1921
logger.debug("Handshake succeeded")
2346
1922
2347
1923
approval_required = False
2348
1924
try:
2349
if gnutls.has_rawpk:
2350
fpr = b""
2351
try:
2352
key_id = self.key_id(
2353
self.peer_certificate(session))
2354
except (TypeError, gnutls.Error) as error:
2355
logger.warning("Bad certificate: %s", error)
2356
return
2357
logger.debug("Key ID: %s",
2358
key_id.decode("utf-8",
2359
errors="replace"))
2360
2361
else:
2362
key_id = b""
2363
try:
2364
fpr = self.fingerprint(
2365
self.peer_certificate(session))
2366
except (TypeError, gnutls.Error) as error:
2367
logger.warning("Bad certificate: %s", error)
2368
return
2369
logger.debug("Fingerprint: %s", fpr)
2370
2371
try:
2372
client = ProxyClient(child_pipe, key_id, fpr,
1925
try:
1926
fpr = self.fingerprint(
1927
self.peer_certificate(session))
1928
except (TypeError,
1929
gnutls.errors.GNUTLSError) as error:
1930
logger.warning("Bad certificate: %s", error)
1931
return
1932
logger.debug("Fingerprint: %s", fpr)
1933
1934
try:
1935
client = ProxyClient(child_pipe, fpr,
2373
1936
self.client_address)
2374
1937
except KeyError:
2375
1938
return
2376
1939
2377
1940
if client.approval_delay:
2378
1941
delay = client.approval_delay
2379
1942
client.approvals_pending += 1
2380
1943
approval_required = True
2381
1944
2382
1945
while True:
2383
1946
if not client.enabled:
2384
1947
logger.info("Client %s is disabled",
2387
1950
# Emit D-Bus signal
2388
1951
client.Rejected("Disabled")
2389
1952
return
2390
1953
2391
1954
if client.approved or not client.approval_delay:
2392
# We are approved or approval is disabled
1955
#We are approved or approval is disabled
2393
1956
break
2394
1957
elif client.approved is None:
2395
1958
logger.info("Client %s needs approval",
2406
1969
# Emit D-Bus signal
2407
1970
client.Rejected("Denied")
2408
1971
return
2409
2410
# wait until timeout or approved
1972
1973
#wait until timeout or approved
2411
1974
time = datetime.datetime.now()
2412
1975
client.changedstate.acquire()
2413
1976
client.changedstate.wait(delay.total_seconds())
2426
1989
break
2427
1990
else:
2428
1991
delay -= time2 - time
2429
2430
try:
2431
session.send(client.secret)
2432
except gnutls.Error as error:
2433
logger.warning("gnutls send failed",
2434
exc_info=error)
2435
return
2436
1992
1993
sent_size = 0
1994
while sent_size < len(client.secret):
1995
try:
1996
sent = session.send(client.secret[sent_size:])
1997
except gnutls.errors.GNUTLSError as error:
1998
logger.warning("gnutls send failed",
1999
exc_info=error)
2000
return
2001
logger.debug("Sent: %d, remaining: %d", sent,
2002
len(client.secret) - (sent_size
2003
+ sent))
2004
sent_size += sent
2005
2437
2006
logger.info("Sending secret to %s", client.name)
2438
2007
# bump the timeout using extended_timeout
2439
2008
client.bump_timeout(client.extended_timeout)
2440
2009
if self.server.use_dbus:
2441
2010
# Emit D-Bus signal
2442
2011
client.GotSecret()
2443
2012
2444
2013
finally:
2445
2014
if approval_required:
2446
2015
client.approvals_pending -= 1
2447
2016
try:
2448
2017
session.bye()
2449
except gnutls.Error as error:
2018
except gnutls.errors.GNUTLSError as error:
2450
2019
logger.warning("GnuTLS bye failed",
2451
2020
exc_info=error)
2452
2021
2453
2022
@staticmethod
2454
2023
def peer_certificate(session):
2455
"Return the peer's certificate as a bytestring"
2456
try:
2457
cert_type = gnutls.certificate_type_get2(
2458
session, gnutls.CTYPE_PEERS)
2459
except AttributeError:
2460
cert_type = gnutls.certificate_type_get(session)
2461
if gnutls.has_rawpk:
2462
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2463
else:
2464
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2465
# If not a valid certificate type...
2466
if cert_type not in valid_cert_types:
2467
logger.info("Cert type %r not in %r", cert_type,
2468
valid_cert_types)
2469
# ...return invalid data
2470
return b""
2024
"Return the peer's OpenPGP certificate as a bytestring"
2025
# If not an OpenPGP certificate...
2026
if (gnutls.library.functions.gnutls_certificate_type_get(
2027
session._c_object)
2028
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
2029
# ...do the normal thing
2030
return session.peer_certificate
2471
2031
list_size = ctypes.c_uint(1)
2472
cert_list = (gnutls.certificate_get_peers
2473
(session, ctypes.byref(list_size)))
2032
cert_list = (gnutls.library.functions
2033
.gnutls_certificate_get_peers
2034
(session._c_object, ctypes.byref(list_size)))
2474
2035
if not bool(cert_list) and list_size.value != 0:
2475
raise gnutls.Error("error getting peer certificate")
2036
raise gnutls.errors.GNUTLSError("error getting peer"
2037
" certificate")
2476
2038
if list_size.value == 0:
2477
2039
return None
2478
2040
cert = cert_list[0]
2479
2041
return ctypes.string_at(cert.data, cert.size)
2480
2481
@staticmethod
2482
def key_id(certificate):
2483
"Convert a certificate bytestring to a hexdigit key ID"
2484
# New GnuTLS "datum" with the public key
2485
datum = gnutls.datum_t(
2486
ctypes.cast(ctypes.c_char_p(certificate),
2487
ctypes.POINTER(ctypes.c_ubyte)),
2488
ctypes.c_uint(len(certificate)))
2489
# XXX all these need to be created in the gnutls "module"
2490
# New empty GnuTLS certificate
2491
pubkey = gnutls.pubkey_t()
2492
gnutls.pubkey_init(ctypes.byref(pubkey))
2493
# Import the raw public key into the certificate
2494
gnutls.pubkey_import(pubkey,
2495
ctypes.byref(datum),
2496
gnutls.X509_FMT_DER)
2497
# New buffer for the key ID
2498
buf = ctypes.create_string_buffer(32)
2499
buf_len = ctypes.c_size_t(len(buf))
2500
# Get the key ID from the raw public key into the buffer
2501
gnutls.pubkey_get_key_id(
2502
pubkey,
2503
gnutls.KEYID_USE_SHA256,
2504
ctypes.cast(ctypes.byref(buf),
2505
ctypes.POINTER(ctypes.c_ubyte)),
2506
ctypes.byref(buf_len))
2507
# Deinit the certificate
2508
gnutls.pubkey_deinit(pubkey)
2509
2510
# Convert the buffer to a Python bytestring
2511
key_id = ctypes.string_at(buf, buf_len.value)
2512
# Convert the bytestring to hexadecimal notation
2513
hex_key_id = binascii.hexlify(key_id).upper()
2514
return hex_key_id
2515
2042
2516
2043
@staticmethod
2517
2044
def fingerprint(openpgp):
2518
2045
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2519
2046
# New GnuTLS "datum" with the OpenPGP public key
2520
datum = gnutls.datum_t(
2047
datum = gnutls.library.types.gnutls_datum_t(
2521
2048
ctypes.cast(ctypes.c_char_p(openpgp),
2522
2049
ctypes.POINTER(ctypes.c_ubyte)),
2523
2050
ctypes.c_uint(len(openpgp)))
2524
2051
# New empty GnuTLS certificate
2525
crt = gnutls.openpgp_crt_t()
2526
gnutls.openpgp_crt_init(ctypes.byref(crt))
2052
crt = gnutls.library.types.gnutls_openpgp_crt_t()
2053
gnutls.library.functions.gnutls_openpgp_crt_init(
2054
ctypes.byref(crt))
2527
2055
# Import the OpenPGP public key into the certificate
2528
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2529
gnutls.OPENPGP_FMT_RAW)
2056
gnutls.library.functions.gnutls_openpgp_crt_import(
2057
crt, ctypes.byref(datum),
2058
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
2530
2059
# Verify the self signature in the key
2531
2060
crtverify = ctypes.c_uint()
2532
gnutls.openpgp_crt_verify_self(crt, 0,
2533
ctypes.byref(crtverify))
2061
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
2062
crt, 0, ctypes.byref(crtverify))
2534
2063
if crtverify.value != 0:
2535
gnutls.openpgp_crt_deinit(crt)
2536
raise gnutls.CertificateSecurityError(code
2537
=crtverify.value)
2064
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2065
raise gnutls.errors.CertificateSecurityError(
2066
"Verify failed")
2538
2067
# New buffer for the fingerprint
2539
2068
buf = ctypes.create_string_buffer(20)
2540
2069
buf_len = ctypes.c_size_t()
2541
2070
# Get the fingerprint from the certificate into the buffer
2542
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2543
ctypes.byref(buf_len))
2071
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
2072
crt, ctypes.byref(buf), ctypes.byref(buf_len))
2544
2073
# Deinit the certificate
2545
gnutls.openpgp_crt_deinit(crt)
2074
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2546
2075
# Convert the buffer to a Python bytestring
2547
2076
fpr = ctypes.string_at(buf, buf_len.value)
2548
2077
# Convert the bytestring to hexadecimal notation
2550
2079
return hex_fpr
2551
2080
2552
2081
2553
class MultiprocessingMixIn:
2082
class MultiprocessingMixIn(object):
2554
2083
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2555
2084
2556
2085
def sub_process_main(self, request, address):
2557
2086
try:
2558
2087
self.finish_request(request, address)
2559
2088
except Exception:
2560
2089
self.handle_error(request, address)
2561
2090
self.close_request(request)
2562
2091
2563
2092
def process_request(self, request, address):
2564
2093
"""Start a new process to process the request."""
2565
proc = multiprocessing.Process(target=self.sub_process_main,
2566
args=(request, address))
2094
proc = multiprocessing.Process(target = self.sub_process_main,
2095
args = (request, address))
2567
2096
proc.start()
2568
2097
return proc
2569
2098
2570
2099
2571
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
2100
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2572
2101
""" adds a pipe to the MixIn """
2573
2102
2574
2103
def process_request(self, request, client_address):
2575
2104
"""Overrides and wraps the original process_request().
2576
2105
2577
2106
This function creates a new pipe in self.pipe
2578
2107
"""
2579
2108
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2580
2109
2581
2110
proc = MultiprocessingMixIn.process_request(self, request,
2582
2111
client_address)
2583
2112
self.child_pipe.close()
2584
2113
self.add_pipe(parent_pipe, proc)
2585
2114
2586
2115
def add_pipe(self, parent_pipe, proc):
2587
2116
"""Dummy function; override as necessary"""
2588
2117
raise NotImplementedError()
2589
2118
2590
2119
2591
2120
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2592
socketserver.TCPServer):
2593
"""IPv6-capable TCP server. Accepts None as address and/or port
2594
2121
socketserver.TCPServer, object):
2122
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2123
2595
2124
Attributes:
2596
2125
enabled: Boolean; whether this server is activated yet
2597
2126
interface: None or a network interface name (string)
2598
2127
use_ipv6: Boolean; to use IPv6 or not
2599
2128
"""
2600
2129
2601
2130
def __init__(self, server_address, RequestHandlerClass,
2602
2131
interface=None,
2603
2132
use_ipv6=True,
2613
2142
self.socketfd = socketfd
2614
2143
# Save the original socket.socket() function
2615
2144
self.socket_socket = socket.socket
2616
2617
2145
# To implement --socket, we monkey patch socket.socket.
2618
#
2146
#
2619
2147
# (When socketserver.TCPServer is a new-style class, we
2620
2148
# could make self.socket into a property instead of monkey
2621
2149
# patching socket.socket.)
2622
#
2150
#
2623
2151
# Create a one-time-only replacement for socket.socket()
2624
2152
@functools.wraps(socket.socket)
2625
2153
def socket_wrapper(*args, **kwargs):
2637
2165
# socket_wrapper(), if socketfd was set.
2638
2166
socketserver.TCPServer.__init__(self, server_address,
2639
2167
RequestHandlerClass)
2640
2168
2641
2169
def server_bind(self):
2642
2170
"""This overrides the normal server_bind() function
2643
2171
to bind to an interface if one was specified, and also NOT to
2644
2172
bind to an address or port if they were not specified."""
2645
global SO_BINDTODEVICE
2646
2173
if self.interface is not None:
2647
2174
if SO_BINDTODEVICE is None:
2648
# Fall back to a hard-coded value which seems to be
2649
# common enough.
2650
logger.warning("SO_BINDTODEVICE not found, trying 25")
2651
SO_BINDTODEVICE = 25
2652
try:
2653
self.socket.setsockopt(
2654
socket.SOL_SOCKET, SO_BINDTODEVICE,
2655
(self.interface + "\0").encode("utf-8"))
2656
except socket.error as error:
2657
if error.errno == errno.EPERM:
2658
logger.error("No permission to bind to"
2659
" interface %s", self.interface)
2660
elif error.errno == errno.ENOPROTOOPT:
2661
logger.error("SO_BINDTODEVICE not available;"
2662
" cannot bind to interface %s",
2663
self.interface)
2664
elif error.errno == errno.ENODEV:
2665
logger.error("Interface %s does not exist,"
2666
" cannot bind", self.interface)
2667
else:
2668
raise
2175
logger.error("SO_BINDTODEVICE does not exist;"
2176
" cannot bind to interface %s",
2177
self.interface)
2178
else:
2179
try:
2180
self.socket.setsockopt(
2181
socket.SOL_SOCKET, SO_BINDTODEVICE,
2182
(self.interface + "\0").encode("utf-8"))
2183
except socket.error as error:
2184
if error.errno == errno.EPERM:
2185
logger.error("No permission to bind to"
2186
" interface %s", self.interface)
2187
elif error.errno == errno.ENOPROTOOPT:
2188
logger.error("SO_BINDTODEVICE not available;"
2189
" cannot bind to interface %s",
2190
self.interface)
2191
elif error.errno == errno.ENODEV:
2192
logger.error("Interface %s does not exist,"
2193
" cannot bind", self.interface)
2194
else:
2195
raise
2669
2196
# Only bind(2) the socket if we really need to.
2670
2197
if self.server_address[0] or self.server_address[1]:
2671
if self.server_address[1]:
2672
self.allow_reuse_address = True
2673
2198
if not self.server_address[0]:
2674
2199
if self.address_family == socket.AF_INET6:
2675
any_address = "::" # in6addr_any
2200
any_address = "::" # in6addr_any
2676
2201
else:
2677
any_address = "0.0.0.0" # INADDR_ANY
2202
any_address = "0.0.0.0" # INADDR_ANY
2678
2203
self.server_address = (any_address,
2679
2204
self.server_address[1])
2680
2205
elif not self.server_address[1]:
2690
2215
2691
2216
class MandosServer(IPv6_TCPServer):
2692
2217
"""Mandos server.
2693
2218
2694
2219
Attributes:
2695
2220
clients: set of Client objects
2696
2221
gnutls_priority GnuTLS priority string
2697
2222
use_dbus: Boolean; to emit D-Bus signals or not
2698
2699
Assumes a GLib.MainLoop event loop.
2223
2224
Assumes a gobject.MainLoop event loop.
2700
2225
"""
2701
2226
2702
2227
def __init__(self, server_address, RequestHandlerClass,
2703
2228
interface=None,
2704
2229
use_ipv6=True,
2714
2239
self.gnutls_priority = gnutls_priority
2715
2240
IPv6_TCPServer.__init__(self, server_address,
2716
2241
RequestHandlerClass,
2717
interface=interface,
2718
use_ipv6=use_ipv6,
2719
socketfd=socketfd)
2720
2242
interface = interface,
2243
use_ipv6 = use_ipv6,
2244
socketfd = socketfd)
2245
2721
2246
def server_activate(self):
2722
2247
if self.enabled:
2723
2248
return socketserver.TCPServer.server_activate(self)
2724
2249
2725
2250
def enable(self):
2726
2251
self.enabled = True
2727
2252
2728
2253
def add_pipe(self, parent_pipe, proc):
2729
2254
# Call "handle_ipc" for both data and EOF events
2730
GLib.io_add_watch(
2731
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2732
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2255
gobject.io_add_watch(
2256
parent_pipe.fileno(),
2257
gobject.IO_IN | gobject.IO_HUP,
2733
2258
functools.partial(self.handle_ipc,
2734
parent_pipe=parent_pipe,
2735
proc=proc))
2736
2259
parent_pipe = parent_pipe,
2260
proc = proc))
2261
2737
2262
def handle_ipc(self, source, condition,
2738
2263
parent_pipe=None,
2739
proc=None,
2264
proc = None,
2740
2265
client_object=None):
2741
2266
# error, or the other end of multiprocessing.Pipe has closed
2742
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2267
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2743
2268
# Wait for other process to exit
2744
2269
proc.join()
2745
2270
return False
2746
2271
2747
2272
# Read a request from the child
2748
2273
request = parent_pipe.recv()
2749
2274
command = request[0]
2750
2751
if command == "init":
2752
key_id = request[1].decode("ascii")
2753
fpr = request[2].decode("ascii")
2754
address = request[3]
2755
2756
for c in self.clients.values():
2757
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2758
"27AE41E4649B934CA495991B7852B855"):
2759
continue
2760
if key_id and c.key_id == key_id:
2761
client = c
2762
break
2763
if fpr and c.fingerprint == fpr:
2275
2276
if command == 'init':
2277
fpr = request[1]
2278
address = request[2]
2279
2280
for c in self.clients.itervalues():
2281
if c.fingerprint == fpr:
2764
2282
client = c
2765
2283
break
2766
2284
else:
2767
logger.info("Client not found for key ID: %s, address"
2768
": %s", key_id or fpr, address)
2285
logger.info("Client not found for fingerprint: %s, ad"
2286
"dress: %s", fpr, address)
2769
2287
if self.use_dbus:
2770
2288
# Emit D-Bus signal
2771
mandos_dbus_service.ClientNotFound(key_id or fpr,
2289
mandos_dbus_service.ClientNotFound(fpr,
2772
2290
address[0])
2773
2291
parent_pipe.send(False)
2774
2292
return False
2775
2776
GLib.io_add_watch(
2777
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2778
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2293
2294
gobject.io_add_watch(
2295
parent_pipe.fileno(),
2296
gobject.IO_IN | gobject.IO_HUP,
2779
2297
functools.partial(self.handle_ipc,
2780
parent_pipe=parent_pipe,
2781
proc=proc,
2782
client_object=client))
2298
parent_pipe = parent_pipe,
2299
proc = proc,
2300
client_object = client))
2783
2301
parent_pipe.send(True)
2784
2302
# remove the old hook in favor of the new above hook on
2785
2303
# same fileno
2786
2304
return False
2787
if command == "funcall":
2305
if command == 'funcall':
2788
2306
funcname = request[1]
2789
2307
args = request[2]
2790
2308
kwargs = request[3]
2791
2792
parent_pipe.send(("data", getattr(client_object,
2309
2310
parent_pipe.send(('data', getattr(client_object,
2793
2311
funcname)(*args,
2794
2312
**kwargs)))
2795
2796
if command == "getattr":
2313
2314
if command == 'getattr':
2797
2315
attrname = request[1]
2798
2316
if isinstance(client_object.__getattribute__(attrname),
2799
collections.abc.Callable):
2800
parent_pipe.send(("function", ))
2317
collections.Callable):
2318
parent_pipe.send(('function', ))
2801
2319
else:
2802
2320
parent_pipe.send((
2803
"data", client_object.__getattribute__(attrname)))
2804
2805
if command == "setattr":
2321
'data', client_object.__getattribute__(attrname)))
2322
2323
if command == 'setattr':
2806
2324
attrname = request[1]
2807
2325
value = request[2]
2808
2326
setattr(client_object, attrname, value)
2809
2327
2810
2328
return True
2811
2329
2812
2330
2813
2331
def rfc3339_duration_to_delta(duration):
2814
2332
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2815
2816
>>> timedelta = datetime.timedelta
2817
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2818
True
2819
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2820
True
2821
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2822
True
2823
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2824
True
2825
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2826
True
2827
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2828
True
2829
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2830
True
2831
>>> del timedelta
2333
2334
>>> rfc3339_duration_to_delta("P7D")
2335
datetime.timedelta(7)
2336
>>> rfc3339_duration_to_delta("PT60S")
2337
datetime.timedelta(0, 60)
2338
>>> rfc3339_duration_to_delta("PT60M")
2339
datetime.timedelta(0, 3600)
2340
>>> rfc3339_duration_to_delta("PT24H")
2341
datetime.timedelta(1)
2342
>>> rfc3339_duration_to_delta("P1W")
2343
datetime.timedelta(7)
2344
>>> rfc3339_duration_to_delta("PT5M30S")
2345
datetime.timedelta(0, 330)
2346
>>> rfc3339_duration_to_delta("P1DT3M20S")
2347
datetime.timedelta(1, 200)
2832
2348
"""
2833
2349
2834
2350
# Parsing an RFC 3339 duration with regular expressions is not
2835
2351
# possible - there would have to be multiple places for the same
2836
2352
# values, like seconds. The current code, while more esoteric, is
2837
2353
# cleaner without depending on a parsing library. If Python had a
2838
2354
# built-in library for parsing we would use it, but we'd like to
2839
2355
# avoid excessive use of external libraries.
2840
2356
2841
2357
# New type for defining tokens, syntax, and semantics all-in-one
2842
2358
Token = collections.namedtuple("Token", (
2843
2359
"regexp", # To match token; if "value" is not None, must have
2876
2392
frozenset((token_year, token_month,
2877
2393
token_day, token_time,
2878
2394
token_week)))
2879
# Define starting values:
2880
# Value so far
2881
value = datetime.timedelta()
2395
# Define starting values
2396
value = datetime.timedelta() # Value so far
2882
2397
found_token = None
2883
# Following valid tokens
2884
followers = frozenset((token_duration, ))
2885
# String left to parse
2886
s = duration
2398
followers = frozenset((token_duration, )) # Following valid tokens
2399
s = duration # String left to parse
2887
2400
# Loop until end token is found
2888
2401
while found_token is not token_end:
2889
2402
# Search for any currently valid tokens
2913
2426
2914
2427
def string_to_delta(interval):
2915
2428
"""Parse a string and return a datetime.timedelta
2916
2917
>>> string_to_delta("7d") == datetime.timedelta(7)
2918
True
2919
>>> string_to_delta("60s") == datetime.timedelta(0, 60)
2920
True
2921
>>> string_to_delta("60m") == datetime.timedelta(0, 3600)
2922
True
2923
>>> string_to_delta("24h") == datetime.timedelta(1)
2924
True
2925
>>> string_to_delta("1w") == datetime.timedelta(7)
2926
True
2927
>>> string_to_delta("5m 30s") == datetime.timedelta(0, 330)
2928
True
2429
2430
>>> string_to_delta('7d')
2431
datetime.timedelta(7)
2432
>>> string_to_delta('60s')
2433
datetime.timedelta(0, 60)
2434
>>> string_to_delta('60m')
2435
datetime.timedelta(0, 3600)
2436
>>> string_to_delta('24h')
2437
datetime.timedelta(1)
2438
>>> string_to_delta('1w')
2439
datetime.timedelta(7)
2440
>>> string_to_delta('5m 30s')
2441
datetime.timedelta(0, 330)
2929
2442
"""
2930
2443
2931
2444
try:
2932
2445
return rfc3339_duration_to_delta(interval)
2933
2446
except ValueError:
2934
2447
pass
2935
2448
2936
2449
timevalue = datetime.timedelta(0)
2937
2450
for s in interval.split():
2938
2451
try:
2956
2469
return timevalue
2957
2470
2958
2471
2959
def daemon(nochdir=False, noclose=False):
2472
def daemon(nochdir = False, noclose = False):
2960
2473
"""See daemon(3). Standard BSD Unix function.
2961
2474
2962
2475
This should really exist as os.daemon, but it doesn't (yet)."""
2963
2476
if os.fork():
2964
2477
sys.exit()
2982
2495
2983
2496
2984
2497
def main():
2985
2498
2986
2499
##################################################################
2987
2500
# Parsing of options, both command line and config file
2988
2501
2989
2502
parser = argparse.ArgumentParser()
2990
2503
parser.add_argument("-v", "--version", action="version",
2991
version="%(prog)s {}".format(version),
2504
version = "%(prog)s {}".format(version),
2992
2505
help="show version number and exit")
2993
2506
parser.add_argument("-i", "--interface", metavar="IF",
2994
2507
help="Bind to interface IF")
3030
2543
parser.add_argument("--no-zeroconf", action="store_false",
3031
2544
dest="zeroconf", help="Do not use Zeroconf",
3032
2545
default=None)
3033
2546
3034
2547
options = parser.parse_args()
3035
2548
2549
if options.check:
2550
import doctest
2551
fail_count, test_count = doctest.testmod()
2552
sys.exit(os.EX_OK if fail_count == 0 else 1)
2553
3036
2554
# Default values for config file for server-global settings
3037
if gnutls.has_rawpk:
3038
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3039
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3040
else:
3041
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3042
":+SIGN-DSA-SHA256")
3043
server_defaults = {"interface": "",
3044
"address": "",
3045
"port": "",
3046
"debug": "False",
3047
"priority": priority,
3048
"servicename": "Mandos",
3049
"use_dbus": "True",
3050
"use_ipv6": "True",
3051
"debuglevel": "",
3052
"restore": "True",
3053
"socket": "",
3054
"statedir": "/var/lib/mandos",
3055
"foreground": "False",
3056
"zeroconf": "True",
3057
}
3058
del priority
3059
2555
server_defaults = { "interface": "",
2556
"address": "",
2557
"port": "",
2558
"debug": "False",
2559
"priority":
2560
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2561
":+SIGN-DSA-SHA256",
2562
"servicename": "Mandos",
2563
"use_dbus": "True",
2564
"use_ipv6": "True",
2565
"debuglevel": "",
2566
"restore": "True",
2567
"socket": "",
2568
"statedir": "/var/lib/mandos",
2569
"foreground": "False",
2570
"zeroconf": "True",
2571
}
2572
3060
2573
# Parse config file for server-global settings
3061
server_config = configparser.ConfigParser(server_defaults)
2574
server_config = configparser.SafeConfigParser(server_defaults)
3062
2575
del server_defaults
3063
2576
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3064
# Convert the ConfigParser object to a dict
2577
# Convert the SafeConfigParser object to a dict
3065
2578
server_settings = server_config.defaults()
3066
2579
# Use the appropriate methods on the non-string config options
3067
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3068
"foreground", "zeroconf"):
2580
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3069
2581
server_settings[option] = server_config.getboolean("DEFAULT",
3070
2582
option)
3071
2583
if server_settings["port"]:
3081
2593
server_settings["socket"] = os.dup(server_settings
3082
2594
["socket"])
3083
2595
del server_config
3084
2596
3085
2597
# Override the settings from the config file with command line
3086
2598
# options, if set.
3087
2599
for option in ("interface", "address", "port", "debug",
3105
2617
if server_settings["debug"]:
3106
2618
server_settings["foreground"] = True
3107
2619
# Now we have our good server settings in "server_settings"
3108
2620
3109
2621
##################################################################
3110
2622
3111
2623
if (not server_settings["zeroconf"]
3112
2624
and not (server_settings["port"]
3113
2625
or server_settings["socket"] != "")):
3114
2626
parser.error("Needs port or socket to work without Zeroconf")
3115
2627
3116
2628
# For convenience
3117
2629
debug = server_settings["debug"]
3118
2630
debuglevel = server_settings["debuglevel"]
3122
2634
stored_state_file)
3123
2635
foreground = server_settings["foreground"]
3124
2636
zeroconf = server_settings["zeroconf"]
3125
2637
3126
2638
if debug:
3127
2639
initlogger(debug, logging.DEBUG)
3128
2640
else:
3131
2643
else:
3132
2644
level = getattr(logging, debuglevel.upper())
3133
2645
initlogger(debug, level)
3134
2646
3135
2647
if server_settings["servicename"] != "Mandos":
3136
2648
syslogger.setFormatter(
3137
logging.Formatter("Mandos ({}) [%(process)d]:"
3138
" %(levelname)s: %(message)s".format(
2649
logging.Formatter('Mandos ({}) [%(process)d]:'
2650
' %(levelname)s: %(message)s'.format(
3139
2651
server_settings["servicename"])))
3140
2652
3141
2653
# Parse config file with clients
3142
client_config = configparser.ConfigParser(Client.client_defaults)
2654
client_config = configparser.SafeConfigParser(Client
2655
.client_defaults)
3143
2656
client_config.read(os.path.join(server_settings["configdir"],
3144
2657
"clients.conf"))
3145
2658
3146
2659
global mandos_dbus_service
3147
2660
mandos_dbus_service = None
3148
2661
3149
2662
socketfd = None
3150
2663
if server_settings["socket"] != "":
3151
2664
socketfd = server_settings["socket"]
3167
2680
except IOError as e:
3168
2681
logger.error("Could not open file %r", pidfilename,
3169
2682
exc_info=e)
3170
3171
for name, group in (("_mandos", "_mandos"),
3172
("mandos", "mandos"),
3173
("nobody", "nogroup")):
2683
2684
for name in ("_mandos", "mandos", "nobody"):
3174
2685
try:
3175
2686
uid = pwd.getpwnam(name).pw_uid
3176
gid = pwd.getpwnam(group).pw_gid
2687
gid = pwd.getpwnam(name).pw_gid
3177
2688
break
3178
2689
except KeyError:
3179
2690
continue
3183
2694
try:
3184
2695
os.setgid(gid)
3185
2696
os.setuid(uid)
3186
if debug:
3187
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3188
gid))
3189
2697
except OSError as error:
3190
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3191
.format(uid, gid, os.strerror(error.errno)))
3192
2698
if error.errno != errno.EPERM:
3193
2699
raise
3194
2700
3195
2701
if debug:
3196
2702
# Enable all possible GnuTLS debugging
3197
2703
3198
2704
# "Use a log level over 10 to enable all debugging options."
3199
2705
# - GnuTLS manual
3200
gnutls.global_set_log_level(11)
3201
3202
@gnutls.log_func
2706
gnutls.library.functions.gnutls_global_set_log_level(11)
2707
2708
@gnutls.library.types.gnutls_log_func
3203
2709
def debug_gnutls(level, string):
3204
logger.debug("GnuTLS: %s",
3205
string[:-1].decode("utf-8",
3206
errors="replace"))
3207
3208
gnutls.global_set_log_function(debug_gnutls)
3209
2710
logger.debug("GnuTLS: %s", string[:-1])
2711
2712
gnutls.library.functions.gnutls_global_set_log_function(
2713
debug_gnutls)
2714
3210
2715
# Redirect stdin so all checkers get /dev/null
3211
2716
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
3212
2717
os.dup2(null, sys.stdin.fileno())
3213
2718
if null > 2:
3214
2719
os.close(null)
3215
2720
3216
2721
# Need to fork before connecting to D-Bus
3217
2722
if not foreground:
3218
2723
# Close all input and output, do double fork, etc.
3219
2724
daemon()
3220
3221
if gi.version_info < (3, 10, 2):
3222
# multiprocessing will use threads, so before we use GLib we
3223
# need to inform GLib that threads will be used.
3224
GLib.threads_init()
3225
2725
2726
# multiprocessing will use threads, so before we use gobject we
2727
# need to inform gobject that threads will be used.
2728
gobject.threads_init()
2729
3226
2730
global main_loop
3227
2731
# From the Avahi example code
3228
2732
DBusGMainLoop(set_as_default=True)
3229
main_loop = GLib.MainLoop()
2733
main_loop = gobject.MainLoop()
3230
2734
bus = dbus.SystemBus()
3231
2735
# End of Avahi example code
3232
2736
if use_dbus:
3245
2749
if zeroconf:
3246
2750
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3247
2751
service = AvahiServiceToSyslog(
3248
name=server_settings["servicename"],
3249
servicetype="_mandos._tcp",
3250
protocol=protocol,
3251
bus=bus)
2752
name = server_settings["servicename"],
2753
servicetype = "_mandos._tcp",
2754
protocol = protocol,
2755
bus = bus)
3252
2756
if server_settings["interface"]:
3253
2757
service.interface = if_nametoindex(
3254
2758
server_settings["interface"].encode("utf-8"))
3255
2759
3256
2760
global multiprocessing_manager
3257
2761
multiprocessing_manager = multiprocessing.Manager()
3258
2762
3259
2763
client_class = Client
3260
2764
if use_dbus:
3261
client_class = functools.partial(ClientDBus, bus=bus)
3262
2765
client_class = functools.partial(ClientDBus, bus = bus)
2766
3263
2767
client_settings = Client.config_parser(client_config)
3264
2768
old_client_settings = {}
3265
2769
clients_data = {}
3266
2770
3267
2771
# This is used to redirect stdout and stderr for checker processes
3268
2772
global wnull
3269
wnull = open(os.devnull, "w") # A writable /dev/null
2773
wnull = open(os.devnull, "w") # A writable /dev/null
3270
2774
# Only used if server is running in foreground but not in debug
3271
2775
# mode
3272
2776
if debug or not foreground:
3273
2777
wnull.close()
3274
2778
3275
2779
# Get client data and settings from last running state.
3276
2780
if server_settings["restore"]:
3277
2781
try:
3278
2782
with open(stored_state_path, "rb") as stored_state:
3279
if sys.version_info.major == 2:
3280
clients_data, old_client_settings = pickle.load(
3281
stored_state)
3282
else:
3283
bytes_clients_data, bytes_old_client_settings = (
3284
pickle.load(stored_state, encoding="bytes"))
3285
# Fix bytes to strings
3286
# clients_data
3287
# .keys()
3288
clients_data = {(key.decode("utf-8")
3289
if isinstance(key, bytes)
3290
else key): value
3291
for key, value in
3292
bytes_clients_data.items()}
3293
del bytes_clients_data
3294
for key in clients_data:
3295
value = {(k.decode("utf-8")
3296
if isinstance(k, bytes) else k): v
3297
for k, v in
3298
clients_data[key].items()}
3299
clients_data[key] = value
3300
# .client_structure
3301
value["client_structure"] = [
3302
(s.decode("utf-8")
3303
if isinstance(s, bytes)
3304
else s) for s in
3305
value["client_structure"]]
3306
# .name, .host, and .checker_command
3307
for k in ("name", "host", "checker_command"):
3308
if isinstance(value[k], bytes):
3309
value[k] = value[k].decode("utf-8")
3310
if "key_id" not in value:
3311
value["key_id"] = ""
3312
elif "fingerprint" not in value:
3313
value["fingerprint"] = ""
3314
# old_client_settings
3315
# .keys()
3316
old_client_settings = {
3317
(key.decode("utf-8")
3318
if isinstance(key, bytes)
3319
else key): value
3320
for key, value in
3321
bytes_old_client_settings.items()}
3322
del bytes_old_client_settings
3323
# .host and .checker_command
3324
for value in old_client_settings.values():
3325
for attribute in ("host", "checker_command"):
3326
if isinstance(value[attribute], bytes):
3327
value[attribute] = (value[attribute]
3328
.decode("utf-8"))
2783
clients_data, old_client_settings = pickle.load(
2784
stored_state)
3329
2785
os.remove(stored_state_path)
3330
2786
except IOError as e:
3331
2787
if e.errno == errno.ENOENT:
3339
2795
logger.warning("Could not load persistent state: "
3340
2796
"EOFError:",
3341
2797
exc_info=e)
3342
2798
3343
2799
with PGPEngine() as pgp:
3344
2800
for client_name, client in clients_data.items():
3345
2801
# Skip removed clients
3346
2802
if client_name not in client_settings:
3347
2803
continue
3348
2804
3349
2805
# Decide which value to use after restoring saved state.
3350
2806
# We have three different values: Old config file,
3351
2807
# new config file, and saved state.
3362
2818
client[name] = value
3363
2819
except KeyError:
3364
2820
pass
3365
2821
3366
2822
# Clients who has passed its expire date can still be
3367
2823
# enabled if its last checker was successful. A Client
3368
2824
# whose checker succeeded before we stored its state is
3401
2857
client_name))
3402
2858
client["secret"] = (client_settings[client_name]
3403
2859
["secret"])
3404
2860
3405
2861
# Add/remove clients based on new changes made to config
3406
2862
for client_name in (set(old_client_settings)
3407
2863
- set(client_settings)):
3409
2865
for client_name in (set(client_settings)
3410
2866
- set(old_client_settings)):
3411
2867
clients_data[client_name] = client_settings[client_name]
3412
2868
3413
2869
# Create all client objects
3414
2870
for client_name, client in clients_data.items():
3415
2871
tcp_server.clients[client_name] = client_class(
3416
name=client_name,
3417
settings=client,
3418
server_settings=server_settings)
3419
2872
name = client_name,
2873
settings = client,
2874
server_settings = server_settings)
2875
3420
2876
if not tcp_server.clients:
3421
2877
logger.warning("No clients defined")
3422
2878
3423
2879
if not foreground:
3424
2880
if pidfile is not None:
3425
2881
pid = os.getpid()
3431
2887
pidfilename, pid)
3432
2888
del pidfile
3433
2889
del pidfilename
3434
3435
for termsig in (signal.SIGHUP, signal.SIGTERM):
3436
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3437
lambda: main_loop.quit() and False)
3438
2890
2891
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2892
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2893
3439
2894
if use_dbus:
3440
2895
3441
2896
@alternate_dbus_interfaces(
3442
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
2897
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3443
2898
class MandosDBusService(DBusObjectWithObjectManager):
3444
2899
"""A D-Bus proxy object"""
3445
2900
3446
2901
def __init__(self):
3447
2902
dbus.service.Object.__init__(self, bus, "/")
3448
2903
3449
2904
_interface = "se.recompile.Mandos"
3450
2905
3451
2906
@dbus.service.signal(_interface, signature="o")
3452
2907
def ClientAdded(self, objpath):
3453
2908
"D-Bus signal"
3454
2909
pass
3455
2910
3456
2911
@dbus.service.signal(_interface, signature="ss")
3457
def ClientNotFound(self, key_id, address):
2912
def ClientNotFound(self, fingerprint, address):
3458
2913
"D-Bus signal"
3459
2914
pass
3460
2915
3461
2916
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3462
2917
"true"})
3463
2918
@dbus.service.signal(_interface, signature="os")
3464
2919
def ClientRemoved(self, objpath, name):
3465
2920
"D-Bus signal"
3466
2921
pass
3467
2922
3468
2923
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3469
2924
"true"})
3470
2925
@dbus.service.method(_interface, out_signature="ao")
3471
2926
def GetAllClients(self):
3472
2927
"D-Bus method"
3473
2928
return dbus.Array(c.dbus_object_path for c in
3474
tcp_server.clients.values())
3475
2929
tcp_server.clients.itervalues())
2930
3476
2931
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3477
2932
"true"})
3478
2933
@dbus.service.method(_interface,
3480
2935
def GetAllClientsWithProperties(self):
3481
2936
"D-Bus method"
3482
2937
return dbus.Dictionary(
3483
{c.dbus_object_path: c.GetAll(
2938
{ c.dbus_object_path: c.GetAll(
3484
2939
"se.recompile.Mandos.Client")
3485
for c in tcp_server.clients.values()},
2940
for c in tcp_server.clients.itervalues() },
3486
2941
signature="oa{sv}")
3487
2942
3488
2943
@dbus.service.method(_interface, in_signature="o")
3489
2944
def RemoveClient(self, object_path):
3490
2945
"D-Bus method"
3491
for c in tcp_server.clients.values():
2946
for c in tcp_server.clients.itervalues():
3492
2947
if c.dbus_object_path == object_path:
3493
2948
del tcp_server.clients[c.name]
3494
2949
c.remove_from_connection()
3498
2953
self.client_removed_signal(c)
3499
2954
return
3500
2955
raise KeyError(object_path)
3501
2956
3502
2957
del _interface
3503
2958
3504
2959
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3505
out_signature="a{oa{sa{sv}}}")
2960
out_signature = "a{oa{sa{sv}}}")
3506
2961
def GetManagedObjects(self):
3507
2962
"""D-Bus method"""
3508
2963
return dbus.Dictionary(
3509
{client.dbus_object_path:
3510
dbus.Dictionary(
3511
{interface: client.GetAll(interface)
3512
for interface in
3513
client._get_all_interface_names()})
3514
for client in tcp_server.clients.values()})
3515
2964
{ client.dbus_object_path:
2965
dbus.Dictionary(
2966
{ interface: client.GetAll(interface)
2967
for interface in
2968
client._get_all_interface_names()})
2969
for client in tcp_server.clients.values()})
2970
3516
2971
def client_added_signal(self, client):
3517
2972
"""Send the new standard signal and the old signal"""
3518
2973
if use_dbus:
3520
2975
self.InterfacesAdded(
3521
2976
client.dbus_object_path,
3522
2977
dbus.Dictionary(
3523
{interface: client.GetAll(interface)
3524
for interface in
3525
client._get_all_interface_names()}))
2978
{ interface: client.GetAll(interface)
2979
for interface in
2980
client._get_all_interface_names()}))
3526
2981
# Old signal
3527
2982
self.ClientAdded(client.dbus_object_path)
3528
2983
3529
2984
def client_removed_signal(self, client):
3530
2985
"""Send the new standard signal and the old signal"""
3531
2986
if use_dbus:
3536
2991
# Old signal
3537
2992
self.ClientRemoved(client.dbus_object_path,
3538
2993
client.name)
3539
2994
3540
2995
mandos_dbus_service = MandosDBusService()
3541
3542
# Save modules to variables to exempt the modules from being
3543
# unloaded before the function registered with atexit() is run.
3544
mp = multiprocessing
3545
wn = wnull
3546
2996
3547
2997
def cleanup():
3548
2998
"Cleanup function; run on exit"
3549
2999
if zeroconf:
3550
3000
service.cleanup()
3551
3552
mp.active_children()
3553
wn.close()
3001
3002
multiprocessing.active_children()
3003
wnull.close()
3554
3004
if not (tcp_server.clients or client_settings):
3555
3005
return
3556
3006
3557
3007
# Store client before exiting. Secrets are encrypted with key
3558
3008
# based on what config file has. If config file is
3559
3009
# removed/edited, old secret will thus be unrecovable.
3560
3010
clients = {}
3561
3011
with PGPEngine() as pgp:
3562
for client in tcp_server.clients.values():
3012
for client in tcp_server.clients.itervalues():
3563
3013
key = client_settings[client.name]["secret"]
3564
3014
client.encrypted_secret = pgp.encrypt(client.secret,
3565
3015
key)
3566
3016
client_dict = {}
3567
3017
3568
3018
# A list of attributes that can not be pickled
3569
3019
# + secret.
3570
exclude = {"bus", "changedstate", "secret",
3571
"checker", "server_settings"}
3020
exclude = { "bus", "changedstate", "secret",
3021
"checker", "server_settings" }
3572
3022
for name, typ in inspect.getmembers(dbus.service
3573
3023
.Object):
3574
3024
exclude.add(name)
3575
3025
3576
3026
client_dict["encrypted_secret"] = (client
3577
3027
.encrypted_secret)
3578
3028
for attr in client.client_structure:
3579
3029
if attr not in exclude:
3580
3030
client_dict[attr] = getattr(client, attr)
3581
3031
3582
3032
clients[client.name] = client_dict
3583
3033
del client_settings[client.name]["secret"]
3584
3034
3585
3035
try:
3586
3036
with tempfile.NamedTemporaryFile(
3587
mode="wb",
3037
mode='wb',
3588
3038
suffix=".pickle",
3589
prefix="clients-",
3039
prefix='clients-',
3590
3040
dir=os.path.dirname(stored_state_path),
3591
3041
delete=False) as stored_state:
3592
pickle.dump((clients, client_settings), stored_state,
3593
protocol=2)
3042
pickle.dump((clients, client_settings), stored_state)
3594
3043
tempname = stored_state.name
3595
3044
os.rename(tempname, stored_state_path)
3596
3045
except (IOError, OSError) as e:
3606
3055
logger.warning("Could not save persistent state:",
3607
3056
exc_info=e)
3608
3057
raise
3609
3058
3610
3059
# Delete all clients, and settings from config
3611
3060
while tcp_server.clients:
3612
3061
name, client = tcp_server.clients.popitem()
3615
3064
# Don't signal the disabling
3616
3065
client.disable(quiet=True)
3617
3066
# Emit D-Bus signal for removal
3618
if use_dbus:
3619
mandos_dbus_service.client_removed_signal(client)
3067
mandos_dbus_service.client_removed_signal(client)
3620
3068
client_settings.clear()
3621
3069
3622
3070
atexit.register(cleanup)
3623
3624
for client in tcp_server.clients.values():
3071
3072
for client in tcp_server.clients.itervalues():
3625
3073
if use_dbus:
3626
3074
# Emit D-Bus signal for adding
3627
3075
mandos_dbus_service.client_added_signal(client)
3628
3076
# Need to initiate checking of clients
3629
3077
if client.enabled:
3630
3078
client.init_checker()
3631
3079
3632
3080
tcp_server.enable()
3633
3081
tcp_server.server_activate()
3634
3082
3635
3083
# Find out what port we got
3636
3084
if zeroconf:
3637
3085
service.port = tcp_server.socket.getsockname()[1]
3642
3090
else: # IPv4
3643
3091
logger.info("Now listening on address %r, port %d",
3644
3092
*tcp_server.socket.getsockname())
3645
3646
# service.interface = tcp_server.socket.getsockname()[3]
3647
3093
3094
#service.interface = tcp_server.socket.getsockname()[3]
3095
3648
3096
try:
3649
3097
if zeroconf:
3650
3098
# From the Avahi example code
3655
3103
cleanup()
3656
3104
sys.exit(1)
3657
3105
# End of Avahi example code
3658
3659
GLib.io_add_watch(
3660
GLib.IOChannel.unix_new(tcp_server.fileno()),
3661
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3662
lambda *args, **kwargs: (tcp_server.handle_request
3663
(*args[2:], **kwargs) or True))
3664
3106
3107
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3108
lambda *args, **kwargs:
3109
(tcp_server.handle_request
3110
(*args[2:], **kwargs) or True))
3111
3665
3112
logger.debug("Starting main loop")
3666
3113
main_loop.run()
3667
3114
except AvahiError as error:
3676
3123
# Must run before the D-Bus bus name gets deregistered
3677
3124
cleanup()
3678
3125
3679
3680
def should_only_run_tests():
3681
parser = argparse.ArgumentParser(add_help=False)
3682
parser.add_argument("--check", action="store_true")
3683
args, unknown_args = parser.parse_known_args()
3684
run_tests = args.check
3685
if run_tests:
3686
# Remove --check argument from sys.argv
3687
sys.argv[1:] = unknown_args
3688
return run_tests
3689
3690
# Add all tests from doctest strings
3691
def load_tests(loader, tests, none):
3692
import doctest
3693
tests.addTests(doctest.DocTestSuite())
3694
return tests
3695
3696
if __name__ == "__main__":
3697
try:
3698
if should_only_run_tests():
3699
# Call using ./mandos --check [--verbose]
3700
unittest.main()
3701
else:
3702
main()
3703
finally:
3704
logging.shutdown()
3126
3127
if __name__ == '__main__':
3128
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0