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- Committer: Teddy Hogeborn
- Date: 2016-10-05 20:13:01 UTC
- Revision ID: teddy@recompile.se-20161005201301-3ibock2agjb2ppe6
Tags: version-1.7.12-1
* Makefile (version): Change to 1.7.12.
* NEWS (Version 1.7.12): Add new entry.
* debian/changelog (1.7.12-1): - '' -
* NEWS (Version 1.7.12): Add new entry.
* debian/changelog (1.7.12-1): - '' -
added
removed
mandos
1
#!/usr/bin/python2.7
1
#!/usr/bin/python
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2
# -*- mode: python; coding: utf-8 -*-
3
#
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 © 2008-2014 Teddy Hogeborn
15
# Copyright © 2008-2014 Björn Påhlsson
16
#
14
# Copyright © 2008-2016 Teddy Hogeborn
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# Copyright © 2008-2016 Björn Påhlsson
16
#
17
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# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
19
19
# the Free Software Foundation, either version 3 of the License, or
23
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
25
# GNU General Public License for more details.
26
#
26
#
27
27
# You should have received a copy of the GNU General Public License
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
#
30
#
31
31
# Contact the authors at <mandos@recompile.se>.
32
#
32
#
33
33
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
37
try:
38
from future_builtins import *
39
except ImportError:
40
pass
38
41
39
import SocketServer as socketserver
42
try:
43
import SocketServer as socketserver
44
except ImportError:
45
import socketserver
40
46
import socket
41
47
import argparse
42
48
import datetime
43
49
import errno
44
import gnutls.crypto
45
import gnutls.connection
46
import gnutls.errors
47
import gnutls.library.functions
48
import gnutls.library.constants
49
import gnutls.library.types
50
import ConfigParser as configparser
50
try:
51
import ConfigParser as configparser
52
except ImportError:
53
import configparser
51
54
import sys
52
55
import re
53
56
import os
62
65
import struct
63
66
import fcntl
64
67
import functools
65
import cPickle as pickle
68
try:
69
import cPickle as pickle
70
except ImportError:
71
import pickle
66
72
import multiprocessing
67
73
import types
68
74
import binascii
69
75
import tempfile
70
76
import itertools
71
77
import collections
78
import codecs
72
79
73
80
import dbus
74
81
import dbus.service
75
import gobject
76
import avahi
82
from gi.repository import GLib
77
83
from dbus.mainloop.glib import DBusGMainLoop
78
84
import ctypes
79
85
import ctypes.util
80
86
import xml.dom.minidom
81
87
import inspect
82
88
89
# Try to find the value of SO_BINDTODEVICE:
83
90
try:
91
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
92
# newer, and it is also the most natural place for it:
84
93
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
85
94
except AttributeError:
86
95
try:
96
# This is where SO_BINDTODEVICE was up to and including Python
97
# 2.6, and also 3.2:
87
98
from IN import SO_BINDTODEVICE
88
99
except ImportError:
89
SO_BINDTODEVICE = None
100
# In Python 2.7 it seems to have been removed entirely.
101
# Try running the C preprocessor:
102
try:
103
cc = subprocess.Popen(["cc", "--language=c", "-E",
104
"/dev/stdin"],
105
stdin=subprocess.PIPE,
106
stdout=subprocess.PIPE)
107
stdout = cc.communicate(
108
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
109
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
110
except (OSError, ValueError, IndexError):
111
# No value found
112
SO_BINDTODEVICE = None
90
113
91
114
if sys.version_info.major == 2:
92
115
str = unicode
93
116
94
version = "1.6.8"
117
version = "1.7.12"
95
118
stored_state_file = "clients.pickle"
96
119
97
120
logger = logging.getLogger()
98
121
syslogger = None
99
122
100
123
try:
101
if_nametoindex = (ctypes.cdll.LoadLibrary
102
(ctypes.util.find_library("c"))
103
.if_nametoindex)
124
if_nametoindex = ctypes.cdll.LoadLibrary(
125
ctypes.util.find_library("c")).if_nametoindex
104
126
except (OSError, AttributeError):
127
105
128
def if_nametoindex(interface):
106
129
"Get an interface index the hard way, i.e. using fcntl()"
107
130
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
112
135
return interface_index
113
136
114
137
138
def copy_function(func):
139
"""Make a copy of a function"""
140
if sys.version_info.major == 2:
141
return types.FunctionType(func.func_code,
142
func.func_globals,
143
func.func_name,
144
func.func_defaults,
145
func.func_closure)
146
else:
147
return types.FunctionType(func.__code__,
148
func.__globals__,
149
func.__name__,
150
func.__defaults__,
151
func.__closure__)
152
153
115
154
def initlogger(debug, level=logging.WARNING):
116
155
"""init logger and add loglevel"""
117
156
118
157
global syslogger
119
syslogger = (logging.handlers.SysLogHandler
120
(facility =
121
logging.handlers.SysLogHandler.LOG_DAEMON,
122
address = "/dev/log"))
158
syslogger = (logging.handlers.SysLogHandler(
159
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
160
address="/dev/log"))
123
161
syslogger.setFormatter(logging.Formatter
124
162
('Mandos [%(process)d]: %(levelname)s:'
125
163
' %(message)s'))
126
164
logger.addHandler(syslogger)
127
165
128
166
if debug:
129
167
console = logging.StreamHandler()
130
168
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
142
180
143
181
class PGPEngine(object):
144
182
"""A simple class for OpenPGP symmetric encryption & decryption"""
183
145
184
def __init__(self):
146
185
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
186
self.gpg = "gpg"
187
try:
188
output = subprocess.check_output(["gpgconf"])
189
for line in output.splitlines():
190
name, text, path = line.split(b":")
191
if name == "gpg":
192
self.gpg = path
193
break
194
except OSError as e:
195
if e.errno != errno.ENOENT:
196
raise
147
197
self.gnupgargs = ['--batch',
148
'--home', self.tempdir,
198
'--homedir', self.tempdir,
149
199
'--force-mdc',
150
'--quiet',
151
'--no-use-agent']
152
200
'--quiet']
201
# Only GPG version 1 has the --no-use-agent option.
202
if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
203
self.gnupgargs.append("--no-use-agent")
204
153
205
def __enter__(self):
154
206
return self
155
207
156
208
def __exit__(self, exc_type, exc_value, traceback):
157
209
self._cleanup()
158
210
return False
159
211
160
212
def __del__(self):
161
213
self._cleanup()
162
214
163
215
def _cleanup(self):
164
216
if self.tempdir is not None:
165
217
# Delete contents of tempdir
166
218
for root, dirs, files in os.walk(self.tempdir,
167
topdown = False):
219
topdown=False):
168
220
for filename in files:
169
221
os.remove(os.path.join(root, filename))
170
222
for dirname in dirs:
172
224
# Remove tempdir
173
225
os.rmdir(self.tempdir)
174
226
self.tempdir = None
175
227
176
228
def password_encode(self, password):
177
229
# Passphrase can not be empty and can not contain newlines or
178
230
# NUL bytes. So we prefix it and hex encode it.
183
235
.replace(b"\n", b"\\n")
184
236
.replace(b"\0", b"\\x00"))
185
237
return encoded
186
238
187
239
def encrypt(self, data, password):
188
240
passphrase = self.password_encode(password)
189
with tempfile.NamedTemporaryFile(dir=self.tempdir
190
) as passfile:
241
with tempfile.NamedTemporaryFile(
242
dir=self.tempdir) as passfile:
191
243
passfile.write(passphrase)
192
244
passfile.flush()
193
proc = subprocess.Popen(['gpg', '--symmetric',
245
proc = subprocess.Popen([self.gpg, '--symmetric',
194
246
'--passphrase-file',
195
247
passfile.name]
196
248
+ self.gnupgargs,
197
stdin = subprocess.PIPE,
198
stdout = subprocess.PIPE,
199
stderr = subprocess.PIPE)
200
ciphertext, err = proc.communicate(input = data)
249
stdin=subprocess.PIPE,
250
stdout=subprocess.PIPE,
251
stderr=subprocess.PIPE)
252
ciphertext, err = proc.communicate(input=data)
201
253
if proc.returncode != 0:
202
254
raise PGPError(err)
203
255
return ciphertext
204
256
205
257
def decrypt(self, data, password):
206
258
passphrase = self.password_encode(password)
207
with tempfile.NamedTemporaryFile(dir = self.tempdir
208
) as passfile:
259
with tempfile.NamedTemporaryFile(
260
dir=self.tempdir) as passfile:
209
261
passfile.write(passphrase)
210
262
passfile.flush()
211
proc = subprocess.Popen(['gpg', '--decrypt',
263
proc = subprocess.Popen([self.gpg, '--decrypt',
212
264
'--passphrase-file',
213
265
passfile.name]
214
266
+ self.gnupgargs,
215
stdin = subprocess.PIPE,
216
stdout = subprocess.PIPE,
217
stderr = subprocess.PIPE)
218
decrypted_plaintext, err = proc.communicate(input
219
= data)
267
stdin=subprocess.PIPE,
268
stdout=subprocess.PIPE,
269
stderr=subprocess.PIPE)
270
decrypted_plaintext, err = proc.communicate(input=data)
220
271
if proc.returncode != 0:
221
272
raise PGPError(err)
222
273
return decrypted_plaintext
223
274
224
275
276
# Pretend that we have an Avahi module
277
class Avahi(object):
278
"""This isn't so much a class as it is a module-like namespace.
279
It is instantiated once, and simulates having an Avahi module."""
280
IF_UNSPEC = -1 # avahi-common/address.h
281
PROTO_UNSPEC = -1 # avahi-common/address.h
282
PROTO_INET = 0 # avahi-common/address.h
283
PROTO_INET6 = 1 # avahi-common/address.h
284
DBUS_NAME = "org.freedesktop.Avahi"
285
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
286
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
287
DBUS_PATH_SERVER = "/"
288
289
def string_array_to_txt_array(self, t):
290
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
291
for s in t), signature="ay")
292
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
293
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
294
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
295
SERVER_INVALID = 0 # avahi-common/defs.h
296
SERVER_REGISTERING = 1 # avahi-common/defs.h
297
SERVER_RUNNING = 2 # avahi-common/defs.h
298
SERVER_COLLISION = 3 # avahi-common/defs.h
299
SERVER_FAILURE = 4 # avahi-common/defs.h
300
avahi = Avahi()
301
302
225
303
class AvahiError(Exception):
226
304
def __init__(self, value, *args, **kwargs):
227
305
self.value = value
228
306
return super(AvahiError, self).__init__(value, *args,
229
307
**kwargs)
230
308
309
231
310
class AvahiServiceError(AvahiError):
232
311
pass
233
312
313
234
314
class AvahiGroupError(AvahiError):
235
315
pass
236
316
237
317
238
318
class AvahiService(object):
239
319
"""An Avahi (Zeroconf) service.
240
320
241
321
Attributes:
242
322
interface: integer; avahi.IF_UNSPEC or an interface index.
243
323
Used to optionally bind to the specified interface.
255
335
server: D-Bus Server
256
336
bus: dbus.SystemBus()
257
337
"""
258
259
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
260
servicetype = None, port = None, TXT = None,
261
domain = "", host = "", max_renames = 32768,
262
protocol = avahi.PROTO_UNSPEC, bus = None):
338
339
def __init__(self,
340
interface=avahi.IF_UNSPEC,
341
name=None,
342
servicetype=None,
343
port=None,
344
TXT=None,
345
domain="",
346
host="",
347
max_renames=32768,
348
protocol=avahi.PROTO_UNSPEC,
349
bus=None):
263
350
self.interface = interface
264
351
self.name = name
265
352
self.type = servicetype
274
361
self.server = None
275
362
self.bus = bus
276
363
self.entry_group_state_changed_match = None
277
278
def rename(self):
364
365
def rename(self, remove=True):
279
366
"""Derived from the Avahi example code"""
280
367
if self.rename_count >= self.max_renames:
281
368
logger.critical("No suitable Zeroconf service name found"
282
369
" after %i retries, exiting.",
283
370
self.rename_count)
284
371
raise AvahiServiceError("Too many renames")
285
self.name = str(self.server
286
.GetAlternativeServiceName(self.name))
372
self.name = str(
373
self.server.GetAlternativeServiceName(self.name))
374
self.rename_count += 1
287
375
logger.info("Changing Zeroconf service name to %r ...",
288
376
self.name)
289
self.remove()
377
if remove:
378
self.remove()
290
379
try:
291
380
self.add()
292
381
except dbus.exceptions.DBusException as error:
293
logger.critical("D-Bus Exception", exc_info=error)
294
self.cleanup()
295
os._exit(1)
296
self.rename_count += 1
297
382
if (error.get_dbus_name()
383
== "org.freedesktop.Avahi.CollisionError"):
384
logger.info("Local Zeroconf service name collision.")
385
return self.rename(remove=False)
386
else:
387
logger.critical("D-Bus Exception", exc_info=error)
388
self.cleanup()
389
os._exit(1)
390
298
391
def remove(self):
299
392
"""Derived from the Avahi example code"""
300
393
if self.entry_group_state_changed_match is not None:
302
395
self.entry_group_state_changed_match = None
303
396
if self.group is not None:
304
397
self.group.Reset()
305
398
306
399
def add(self):
307
400
"""Derived from the Avahi example code"""
308
401
self.remove()
325
418
dbus.UInt16(self.port),
326
419
avahi.string_array_to_txt_array(self.TXT))
327
420
self.group.Commit()
328
421
329
422
def entry_group_state_changed(self, state, error):
330
423
"""Derived from the Avahi example code"""
331
424
logger.debug("Avahi entry group state change: %i", state)
332
425
333
426
if state == avahi.ENTRY_GROUP_ESTABLISHED:
334
427
logger.debug("Zeroconf service established.")
335
428
elif state == avahi.ENTRY_GROUP_COLLISION:
338
431
elif state == avahi.ENTRY_GROUP_FAILURE:
339
432
logger.critical("Avahi: Error in group state changed %s",
340
433
str(error))
341
raise AvahiGroupError("State changed: {!s}"
342
.format(error))
343
434
raise AvahiGroupError("State changed: {!s}".format(error))
435
344
436
def cleanup(self):
345
437
"""Derived from the Avahi example code"""
346
438
if self.group is not None:
351
443
pass
352
444
self.group = None
353
445
self.remove()
354
446
355
447
def server_state_changed(self, state, error=None):
356
448
"""Derived from the Avahi example code"""
357
449
logger.debug("Avahi server state change: %i", state)
358
bad_states = { avahi.SERVER_INVALID:
359
"Zeroconf server invalid",
360
avahi.SERVER_REGISTERING: None,
361
avahi.SERVER_COLLISION:
362
"Zeroconf server name collision",
363
avahi.SERVER_FAILURE:
364
"Zeroconf server failure" }
450
bad_states = {
451
avahi.SERVER_INVALID: "Zeroconf server invalid",
452
avahi.SERVER_REGISTERING: None,
453
avahi.SERVER_COLLISION: "Zeroconf server name collision",
454
avahi.SERVER_FAILURE: "Zeroconf server failure",
455
}
365
456
if state in bad_states:
366
457
if bad_states[state] is not None:
367
458
if error is None:
370
461
logger.error(bad_states[state] + ": %r", error)
371
462
self.cleanup()
372
463
elif state == avahi.SERVER_RUNNING:
373
self.add()
464
try:
465
self.add()
466
except dbus.exceptions.DBusException as error:
467
if (error.get_dbus_name()
468
== "org.freedesktop.Avahi.CollisionError"):
469
logger.info("Local Zeroconf service name"
470
" collision.")
471
return self.rename(remove=False)
472
else:
473
logger.critical("D-Bus Exception", exc_info=error)
474
self.cleanup()
475
os._exit(1)
374
476
else:
375
477
if error is None:
376
478
logger.debug("Unknown state: %r", state)
377
479
else:
378
480
logger.debug("Unknown state: %r: %r", state, error)
379
481
380
482
def activate(self):
381
483
"""Derived from the Avahi example code"""
382
484
if self.server is None:
386
488
follow_name_owner_changes=True),
387
489
avahi.DBUS_INTERFACE_SERVER)
388
490
self.server.connect_to_signal("StateChanged",
389
self.server_state_changed)
491
self.server_state_changed)
390
492
self.server_state_changed(self.server.GetState())
391
493
392
494
393
495
class AvahiServiceToSyslog(AvahiService):
394
def rename(self):
496
def rename(self, *args, **kwargs):
395
497
"""Add the new name to the syslog messages"""
396
ret = AvahiService.rename(self)
397
syslogger.setFormatter(logging.Formatter
398
('Mandos ({}) [%(process)d]:'
399
' %(levelname)s: %(message)s'
400
.format(self.name)))
498
ret = AvahiService.rename(self, *args, **kwargs)
499
syslogger.setFormatter(logging.Formatter(
500
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
501
.format(self.name)))
401
502
return ret
402
503
403
504
505
# Pretend that we have a GnuTLS module
506
class GnuTLS(object):
507
"""This isn't so much a class as it is a module-like namespace.
508
It is instantiated once, and simulates having a GnuTLS module."""
509
510
library = ctypes.util.find_library("gnutls")
511
if library is None:
512
library = ctypes.util.find_library("gnutls-deb0")
513
_library = ctypes.cdll.LoadLibrary(library)
514
del library
515
_need_version = b"3.3.0"
516
517
def __init__(self):
518
# Need to use class name "GnuTLS" here, since this method is
519
# called before the assignment to the "gnutls" global variable
520
# happens.
521
if GnuTLS.check_version(self._need_version) is None:
522
raise GnuTLS.Error("Needs GnuTLS {} or later"
523
.format(self._need_version))
524
525
# Unless otherwise indicated, the constants and types below are
526
# all from the gnutls/gnutls.h C header file.
527
528
# Constants
529
E_SUCCESS = 0
530
E_INTERRUPTED = -52
531
E_AGAIN = -28
532
CRT_OPENPGP = 2
533
CLIENT = 2
534
SHUT_RDWR = 0
535
CRD_CERTIFICATE = 1
536
E_NO_CERTIFICATE_FOUND = -49
537
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
538
539
# Types
540
class session_int(ctypes.Structure):
541
_fields_ = []
542
session_t = ctypes.POINTER(session_int)
543
544
class certificate_credentials_st(ctypes.Structure):
545
_fields_ = []
546
certificate_credentials_t = ctypes.POINTER(
547
certificate_credentials_st)
548
certificate_type_t = ctypes.c_int
549
550
class datum_t(ctypes.Structure):
551
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
552
('size', ctypes.c_uint)]
553
554
class openpgp_crt_int(ctypes.Structure):
555
_fields_ = []
556
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
557
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
558
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
559
credentials_type_t = ctypes.c_int
560
transport_ptr_t = ctypes.c_void_p
561
close_request_t = ctypes.c_int
562
563
# Exceptions
564
class Error(Exception):
565
# We need to use the class name "GnuTLS" here, since this
566
# exception might be raised from within GnuTLS.__init__,
567
# which is called before the assignment to the "gnutls"
568
# global variable has happened.
569
def __init__(self, message=None, code=None, args=()):
570
# Default usage is by a message string, but if a return
571
# code is passed, convert it to a string with
572
# gnutls.strerror()
573
self.code = code
574
if message is None and code is not None:
575
message = GnuTLS.strerror(code)
576
return super(GnuTLS.Error, self).__init__(
577
message, *args)
578
579
class CertificateSecurityError(Error):
580
pass
581
582
# Classes
583
class Credentials(object):
584
def __init__(self):
585
self._c_object = gnutls.certificate_credentials_t()
586
gnutls.certificate_allocate_credentials(
587
ctypes.byref(self._c_object))
588
self.type = gnutls.CRD_CERTIFICATE
589
590
def __del__(self):
591
gnutls.certificate_free_credentials(self._c_object)
592
593
class ClientSession(object):
594
def __init__(self, socket, credentials=None):
595
self._c_object = gnutls.session_t()
596
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
597
gnutls.set_default_priority(self._c_object)
598
gnutls.transport_set_ptr(self._c_object, socket.fileno())
599
gnutls.handshake_set_private_extensions(self._c_object,
600
True)
601
self.socket = socket
602
if credentials is None:
603
credentials = gnutls.Credentials()
604
gnutls.credentials_set(self._c_object, credentials.type,
605
ctypes.cast(credentials._c_object,
606
ctypes.c_void_p))
607
self.credentials = credentials
608
609
def __del__(self):
610
gnutls.deinit(self._c_object)
611
612
def handshake(self):
613
return gnutls.handshake(self._c_object)
614
615
def send(self, data):
616
data = bytes(data)
617
data_len = len(data)
618
while data_len > 0:
619
data_len -= gnutls.record_send(self._c_object,
620
data[-data_len:],
621
data_len)
622
623
def bye(self):
624
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
625
626
# Error handling functions
627
def _error_code(result):
628
"""A function to raise exceptions on errors, suitable
629
for the 'restype' attribute on ctypes functions"""
630
if result >= 0:
631
return result
632
if result == gnutls.E_NO_CERTIFICATE_FOUND:
633
raise gnutls.CertificateSecurityError(code=result)
634
raise gnutls.Error(code=result)
635
636
def _retry_on_error(result, func, arguments):
637
"""A function to retry on some errors, suitable
638
for the 'errcheck' attribute on ctypes functions"""
639
while result < 0:
640
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
641
return _error_code(result)
642
result = func(*arguments)
643
return result
644
645
# Unless otherwise indicated, the function declarations below are
646
# all from the gnutls/gnutls.h C header file.
647
648
# Functions
649
priority_set_direct = _library.gnutls_priority_set_direct
650
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
651
ctypes.POINTER(ctypes.c_char_p)]
652
priority_set_direct.restype = _error_code
653
654
init = _library.gnutls_init
655
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
656
init.restype = _error_code
657
658
set_default_priority = _library.gnutls_set_default_priority
659
set_default_priority.argtypes = [session_t]
660
set_default_priority.restype = _error_code
661
662
record_send = _library.gnutls_record_send
663
record_send.argtypes = [session_t, ctypes.c_void_p,
664
ctypes.c_size_t]
665
record_send.restype = ctypes.c_ssize_t
666
record_send.errcheck = _retry_on_error
667
668
certificate_allocate_credentials = (
669
_library.gnutls_certificate_allocate_credentials)
670
certificate_allocate_credentials.argtypes = [
671
ctypes.POINTER(certificate_credentials_t)]
672
certificate_allocate_credentials.restype = _error_code
673
674
certificate_free_credentials = (
675
_library.gnutls_certificate_free_credentials)
676
certificate_free_credentials.argtypes = [
677
certificate_credentials_t]
678
certificate_free_credentials.restype = None
679
680
handshake_set_private_extensions = (
681
_library.gnutls_handshake_set_private_extensions)
682
handshake_set_private_extensions.argtypes = [session_t,
683
ctypes.c_int]
684
handshake_set_private_extensions.restype = None
685
686
credentials_set = _library.gnutls_credentials_set
687
credentials_set.argtypes = [session_t, credentials_type_t,
688
ctypes.c_void_p]
689
credentials_set.restype = _error_code
690
691
strerror = _library.gnutls_strerror
692
strerror.argtypes = [ctypes.c_int]
693
strerror.restype = ctypes.c_char_p
694
695
certificate_type_get = _library.gnutls_certificate_type_get
696
certificate_type_get.argtypes = [session_t]
697
certificate_type_get.restype = _error_code
698
699
certificate_get_peers = _library.gnutls_certificate_get_peers
700
certificate_get_peers.argtypes = [session_t,
701
ctypes.POINTER(ctypes.c_uint)]
702
certificate_get_peers.restype = ctypes.POINTER(datum_t)
703
704
global_set_log_level = _library.gnutls_global_set_log_level
705
global_set_log_level.argtypes = [ctypes.c_int]
706
global_set_log_level.restype = None
707
708
global_set_log_function = _library.gnutls_global_set_log_function
709
global_set_log_function.argtypes = [log_func]
710
global_set_log_function.restype = None
711
712
deinit = _library.gnutls_deinit
713
deinit.argtypes = [session_t]
714
deinit.restype = None
715
716
handshake = _library.gnutls_handshake
717
handshake.argtypes = [session_t]
718
handshake.restype = _error_code
719
handshake.errcheck = _retry_on_error
720
721
transport_set_ptr = _library.gnutls_transport_set_ptr
722
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
723
transport_set_ptr.restype = None
724
725
bye = _library.gnutls_bye
726
bye.argtypes = [session_t, close_request_t]
727
bye.restype = _error_code
728
bye.errcheck = _retry_on_error
729
730
check_version = _library.gnutls_check_version
731
check_version.argtypes = [ctypes.c_char_p]
732
check_version.restype = ctypes.c_char_p
733
734
# All the function declarations below are from gnutls/openpgp.h
735
736
openpgp_crt_init = _library.gnutls_openpgp_crt_init
737
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
738
openpgp_crt_init.restype = _error_code
739
740
openpgp_crt_import = _library.gnutls_openpgp_crt_import
741
openpgp_crt_import.argtypes = [openpgp_crt_t,
742
ctypes.POINTER(datum_t),
743
openpgp_crt_fmt_t]
744
openpgp_crt_import.restype = _error_code
745
746
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
747
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
748
ctypes.POINTER(ctypes.c_uint)]
749
openpgp_crt_verify_self.restype = _error_code
750
751
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
752
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
753
openpgp_crt_deinit.restype = None
754
755
openpgp_crt_get_fingerprint = (
756
_library.gnutls_openpgp_crt_get_fingerprint)
757
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
758
ctypes.c_void_p,
759
ctypes.POINTER(
760
ctypes.c_size_t)]
761
openpgp_crt_get_fingerprint.restype = _error_code
762
763
# Remove non-public functions
764
del _error_code, _retry_on_error
765
# Create the global "gnutls" object, simulating a module
766
gnutls = GnuTLS()
767
768
769
def call_pipe(connection, # : multiprocessing.Connection
770
func, *args, **kwargs):
771
"""This function is meant to be called by multiprocessing.Process
772
773
This function runs func(*args, **kwargs), and writes the resulting
774
return value on the provided multiprocessing.Connection.
775
"""
776
connection.send(func(*args, **kwargs))
777
connection.close()
778
779
404
780
class Client(object):
405
781
"""A representation of a client host served by this server.
406
782
407
783
Attributes:
408
784
approved: bool(); 'None' if not yet approved/disapproved
409
785
approval_delay: datetime.timedelta(); Time to wait for approval
411
787
checker: subprocess.Popen(); a running checker process used
412
788
to see if the client lives.
413
789
'None' if no process is running.
414
checker_callback_tag: a gobject event source tag, or None
790
checker_callback_tag: a GLib event source tag, or None
415
791
checker_command: string; External command which is run to check
416
792
if client lives. %() expansions are done at
417
793
runtime with vars(self) as dict, so that for
418
794
instance %(name)s can be used in the command.
419
checker_initiator_tag: a gobject event source tag, or None
795
checker_initiator_tag: a GLib event source tag, or None
420
796
created: datetime.datetime(); (UTC) object creation
421
797
client_structure: Object describing what attributes a client has
422
798
and is used for storing the client at exit
423
799
current_checker_command: string; current running checker_command
424
disable_initiator_tag: a gobject event source tag, or None
800
disable_initiator_tag: a GLib event source tag, or None
425
801
enabled: bool()
426
802
fingerprint: string (40 or 32 hexadecimal digits); used to
427
803
uniquely identify the client
432
808
last_checker_status: integer between 0 and 255 reflecting exit
433
809
status of last checker. -1 reflects crashed
434
810
checker, -2 means no checker completed yet.
811
last_checker_signal: The signal which killed the last checker, if
812
last_checker_status is -1
435
813
last_enabled: datetime.datetime(); (UTC) or None
436
814
name: string; from the config file, used in log messages and
437
815
D-Bus identifiers
444
822
disabled, or None
445
823
server_settings: The server_settings dict from main()
446
824
"""
447
825
448
826
runtime_expansions = ("approval_delay", "approval_duration",
449
827
"created", "enabled", "expires",
450
828
"fingerprint", "host", "interval",
451
829
"last_approval_request", "last_checked_ok",
452
830
"last_enabled", "name", "timeout")
453
client_defaults = { "timeout": "PT5M",
454
"extended_timeout": "PT15M",
455
"interval": "PT2M",
456
"checker": "fping -q -- %%(host)s",
457
"host": "",
458
"approval_delay": "PT0S",
459
"approval_duration": "PT1S",
460
"approved_by_default": "True",
461
"enabled": "True",
462
}
463
831
client_defaults = {
832
"timeout": "PT5M",
833
"extended_timeout": "PT15M",
834
"interval": "PT2M",
835
"checker": "fping -q -- %%(host)s",
836
"host": "",
837
"approval_delay": "PT0S",
838
"approval_duration": "PT1S",
839
"approved_by_default": "True",
840
"enabled": "True",
841
}
842
464
843
@staticmethod
465
844
def config_parser(config):
466
845
"""Construct a new dict of client settings of this form:
473
852
for client_name in config.sections():
474
853
section = dict(config.items(client_name))
475
854
client = settings[client_name] = {}
476
855
477
856
client["host"] = section["host"]
478
857
# Reformat values from string types to Python types
479
858
client["approved_by_default"] = config.getboolean(
480
859
client_name, "approved_by_default")
481
860
client["enabled"] = config.getboolean(client_name,
482
861
"enabled")
483
862
863
# Uppercase and remove spaces from fingerprint for later
864
# comparison purposes with return value from the
865
# fingerprint() function
484
866
client["fingerprint"] = (section["fingerprint"].upper()
485
867
.replace(" ", ""))
486
868
if "secret" in section:
487
client["secret"] = section["secret"].decode("base64")
869
client["secret"] = codecs.decode(section["secret"]
870
.encode("utf-8"),
871
"base64")
488
872
elif "secfile" in section:
489
873
with open(os.path.expanduser(os.path.expandvars
490
874
(section["secfile"])),
505
889
client["last_approval_request"] = None
506
890
client["last_checked_ok"] = None
507
891
client["last_checker_status"] = -2
508
892
509
893
return settings
510
511
def __init__(self, settings, name = None, server_settings=None):
894
895
def __init__(self, settings, name=None, server_settings=None):
512
896
self.name = name
513
897
if server_settings is None:
514
898
server_settings = {}
516
900
# adding all client settings
517
901
for setting, value in settings.items():
518
902
setattr(self, setting, value)
519
903
520
904
if self.enabled:
521
905
if not hasattr(self, "last_enabled"):
522
906
self.last_enabled = datetime.datetime.utcnow()
526
910
else:
527
911
self.last_enabled = None
528
912
self.expires = None
529
913
530
914
logger.debug("Creating client %r", self.name)
531
# Uppercase and remove spaces from fingerprint for later
532
# comparison purposes with return value from the fingerprint()
533
# function
534
915
logger.debug(" Fingerprint: %s", self.fingerprint)
535
916
self.created = settings.get("created",
536
917
datetime.datetime.utcnow())
537
918
538
919
# attributes specific for this server instance
539
920
self.checker = None
540
921
self.checker_initiator_tag = None
543
924
self.current_checker_command = None
544
925
self.approved = None
545
926
self.approvals_pending = 0
546
self.changedstate = (multiprocessing_manager
547
.Condition(multiprocessing_manager
548
.Lock()))
549
self.client_structure = [attr for attr in
550
self.__dict__.iterkeys()
927
self.changedstate = multiprocessing_manager.Condition(
928
multiprocessing_manager.Lock())
929
self.client_structure = [attr
930
for attr in self.__dict__.keys()
551
931
if not attr.startswith("_")]
552
932
self.client_structure.append("client_structure")
553
554
for name, t in inspect.getmembers(type(self),
555
lambda obj:
556
isinstance(obj,
557
property)):
933
934
for name, t in inspect.getmembers(
935
type(self), lambda obj: isinstance(obj, property)):
558
936
if not name.startswith("_"):
559
937
self.client_structure.append(name)
560
938
561
939
# Send notice to process children that client state has changed
562
940
def send_changedstate(self):
563
941
with self.changedstate:
564
942
self.changedstate.notify_all()
565
943
566
944
def enable(self):
567
945
"""Start this client's checker and timeout hooks"""
568
946
if getattr(self, "enabled", False):
573
951
self.last_enabled = datetime.datetime.utcnow()
574
952
self.init_checker()
575
953
self.send_changedstate()
576
954
577
955
def disable(self, quiet=True):
578
956
"""Disable this client."""
579
957
if not getattr(self, "enabled", False):
581
959
if not quiet:
582
960
logger.info("Disabling client %s", self.name)
583
961
if getattr(self, "disable_initiator_tag", None) is not None:
584
gobject.source_remove(self.disable_initiator_tag)
962
GLib.source_remove(self.disable_initiator_tag)
585
963
self.disable_initiator_tag = None
586
964
self.expires = None
587
965
if getattr(self, "checker_initiator_tag", None) is not None:
588
gobject.source_remove(self.checker_initiator_tag)
966
GLib.source_remove(self.checker_initiator_tag)
589
967
self.checker_initiator_tag = None
590
968
self.stop_checker()
591
969
self.enabled = False
592
970
if not quiet:
593
971
self.send_changedstate()
594
# Do not run this again if called by a gobject.timeout_add
972
# Do not run this again if called by a GLib.timeout_add
595
973
return False
596
974
597
975
def __del__(self):
598
976
self.disable()
599
977
600
978
def init_checker(self):
601
979
# Schedule a new checker to be started an 'interval' from now,
602
980
# and every interval from then on.
603
981
if self.checker_initiator_tag is not None:
604
gobject.source_remove(self.checker_initiator_tag)
605
self.checker_initiator_tag = (gobject.timeout_add
606
(int(self.interval
607
.total_seconds() * 1000),
608
self.start_checker))
982
GLib.source_remove(self.checker_initiator_tag)
983
self.checker_initiator_tag = GLib.timeout_add(
984
int(self.interval.total_seconds() * 1000),
985
self.start_checker)
609
986
# Schedule a disable() when 'timeout' has passed
610
987
if self.disable_initiator_tag is not None:
611
gobject.source_remove(self.disable_initiator_tag)
612
self.disable_initiator_tag = (gobject.timeout_add
613
(int(self.timeout
614
.total_seconds() * 1000),
615
self.disable))
988
GLib.source_remove(self.disable_initiator_tag)
989
self.disable_initiator_tag = GLib.timeout_add(
990
int(self.timeout.total_seconds() * 1000), self.disable)
616
991
# Also start a new checker *right now*.
617
992
self.start_checker()
618
619
def checker_callback(self, pid, condition, command):
993
994
def checker_callback(self, source, condition, connection,
995
command):
620
996
"""The checker has completed, so take appropriate actions."""
621
997
self.checker_callback_tag = None
622
998
self.checker = None
623
if os.WIFEXITED(condition):
624
self.last_checker_status = os.WEXITSTATUS(condition)
999
# Read return code from connection (see call_pipe)
1000
returncode = connection.recv()
1001
connection.close()
1002
1003
if returncode >= 0:
1004
self.last_checker_status = returncode
1005
self.last_checker_signal = None
625
1006
if self.last_checker_status == 0:
626
1007
logger.info("Checker for %(name)s succeeded",
627
1008
vars(self))
628
1009
self.checked_ok()
629
1010
else:
630
logger.info("Checker for %(name)s failed",
631
vars(self))
1011
logger.info("Checker for %(name)s failed", vars(self))
632
1012
else:
633
1013
self.last_checker_status = -1
1014
self.last_checker_signal = -returncode
634
1015
logger.warning("Checker for %(name)s crashed?",
635
1016
vars(self))
636
1017
return False
1018
637
1019
def checked_ok(self):
638
1020
"""Assert that the client has been seen, alive and well."""
639
1021
self.last_checked_ok = datetime.datetime.utcnow()
640
1022
self.last_checker_status = 0
1023
self.last_checker_signal = None
641
1024
self.bump_timeout()
642
1025
643
1026
def bump_timeout(self, timeout=None):
644
1027
"""Bump up the timeout for this client."""
645
1028
if timeout is None:
646
1029
timeout = self.timeout
647
1030
if self.disable_initiator_tag is not None:
648
gobject.source_remove(self.disable_initiator_tag)
1031
GLib.source_remove(self.disable_initiator_tag)
649
1032
self.disable_initiator_tag = None
650
1033
if getattr(self, "enabled", False):
651
self.disable_initiator_tag = (gobject.timeout_add
652
(int(timeout.total_seconds()
653
* 1000), self.disable))
1034
self.disable_initiator_tag = GLib.timeout_add(
1035
int(timeout.total_seconds() * 1000), self.disable)
654
1036
self.expires = datetime.datetime.utcnow() + timeout
655
1037
656
1038
def need_approval(self):
657
1039
self.last_approval_request = datetime.datetime.utcnow()
658
1040
659
1041
def start_checker(self):
660
1042
"""Start a new checker subprocess if one is not running.
661
1043
662
1044
If a checker already exists, leave it running and do
663
1045
nothing."""
664
1046
# The reason for not killing a running checker is that if we
669
1051
# checkers alone, the checker would have to take more time
670
1052
# than 'timeout' for the client to be disabled, which is as it
671
1053
# should be.
672
673
# If a checker exists, make sure it is not a zombie
674
try:
675
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
676
except AttributeError:
677
pass
678
except OSError as error:
679
if error.errno != errno.ECHILD:
680
raise
681
else:
682
if pid:
683
logger.warning("Checker was a zombie")
684
gobject.source_remove(self.checker_callback_tag)
685
self.checker_callback(pid, status,
686
self.current_checker_command)
1054
1055
if self.checker is not None and not self.checker.is_alive():
1056
logger.warning("Checker was not alive; joining")
1057
self.checker.join()
1058
self.checker = None
687
1059
# Start a new checker if needed
688
1060
if self.checker is None:
689
1061
# Escape attributes for the shell
690
escaped_attrs = { attr:
691
re.escape(str(getattr(self, attr)))
692
for attr in self.runtime_expansions }
1062
escaped_attrs = {
1063
attr: re.escape(str(getattr(self, attr)))
1064
for attr in self.runtime_expansions}
693
1065
try:
694
1066
command = self.checker_command % escaped_attrs
695
1067
except TypeError as error:
696
1068
logger.error('Could not format string "%s"',
697
self.checker_command, exc_info=error)
698
return True # Try again later
1069
self.checker_command,
1070
exc_info=error)
1071
return True # Try again later
699
1072
self.current_checker_command = command
700
try:
701
logger.info("Starting checker %r for %s",
702
command, self.name)
703
# We don't need to redirect stdout and stderr, since
704
# in normal mode, that is already done by daemon(),
705
# and in debug mode we don't want to. (Stdin is
706
# always replaced by /dev/null.)
707
# The exception is when not debugging but nevertheless
708
# running in the foreground; use the previously
709
# created wnull.
710
popen_args = {}
711
if (not self.server_settings["debug"]
712
and self.server_settings["foreground"]):
713
popen_args.update({"stdout": wnull,
714
"stderr": wnull })
715
self.checker = subprocess.Popen(command,
716
close_fds=True,
717
shell=True, cwd="/",
718
**popen_args)
719
except OSError as error:
720
logger.error("Failed to start subprocess",
721
exc_info=error)
722
return True
723
self.checker_callback_tag = (gobject.child_watch_add
724
(self.checker.pid,
725
self.checker_callback,
726
data=command))
727
# The checker may have completed before the gobject
728
# watch was added. Check for this.
729
try:
730
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
731
except OSError as error:
732
if error.errno == errno.ECHILD:
733
# This should never happen
734
logger.error("Child process vanished",
735
exc_info=error)
736
return True
737
raise
738
if pid:
739
gobject.source_remove(self.checker_callback_tag)
740
self.checker_callback(pid, status, command)
741
# Re-run this periodically if run by gobject.timeout_add
1073
logger.info("Starting checker %r for %s", command,
1074
self.name)
1075
# We don't need to redirect stdout and stderr, since
1076
# in normal mode, that is already done by daemon(),
1077
# and in debug mode we don't want to. (Stdin is
1078
# always replaced by /dev/null.)
1079
# The exception is when not debugging but nevertheless
1080
# running in the foreground; use the previously
1081
# created wnull.
1082
popen_args = {"close_fds": True,
1083
"shell": True,
1084
"cwd": "/"}
1085
if (not self.server_settings["debug"]
1086
and self.server_settings["foreground"]):
1087
popen_args.update({"stdout": wnull,
1088
"stderr": wnull})
1089
pipe = multiprocessing.Pipe(duplex=False)
1090
self.checker = multiprocessing.Process(
1091
target=call_pipe,
1092
args=(pipe[1], subprocess.call, command),
1093
kwargs=popen_args)
1094
self.checker.start()
1095
self.checker_callback_tag = GLib.io_add_watch(
1096
pipe[0].fileno(), GLib.IO_IN,
1097
self.checker_callback, pipe[0], command)
1098
# Re-run this periodically if run by GLib.timeout_add
742
1099
return True
743
1100
744
1101
def stop_checker(self):
745
1102
"""Force the checker process, if any, to stop."""
746
1103
if self.checker_callback_tag:
747
gobject.source_remove(self.checker_callback_tag)
1104
GLib.source_remove(self.checker_callback_tag)
748
1105
self.checker_callback_tag = None
749
1106
if getattr(self, "checker", None) is None:
750
1107
return
751
1108
logger.debug("Stopping checker for %(name)s", vars(self))
752
try:
753
self.checker.terminate()
754
#time.sleep(0.5)
755
#if self.checker.poll() is None:
756
# self.checker.kill()
757
except OSError as error:
758
if error.errno != errno.ESRCH: # No such process
759
raise
1109
self.checker.terminate()
760
1110
self.checker = None
761
1111
762
1112
763
def dbus_service_property(dbus_interface, signature="v",
764
access="readwrite", byte_arrays=False):
1113
def dbus_service_property(dbus_interface,
1114
signature="v",
1115
access="readwrite",
1116
byte_arrays=False):
765
1117
"""Decorators for marking methods of a DBusObjectWithProperties to
766
1118
become properties on the D-Bus.
767
1119
768
1120
The decorated method will be called with no arguments by "Get"
769
1121
and with one argument by "Set".
770
1122
771
1123
The parameters, where they are supported, are the same as
772
1124
dbus.service.method, except there is only "signature", since the
773
1125
type from Get() and the type sent to Set() is the same.
777
1129
if byte_arrays and signature != "ay":
778
1130
raise ValueError("Byte arrays not supported for non-'ay'"
779
1131
" signature {!r}".format(signature))
1132
780
1133
def decorator(func):
781
1134
func._dbus_is_property = True
782
1135
func._dbus_interface = dbus_interface
785
1138
func._dbus_name = func.__name__
786
1139
if func._dbus_name.endswith("_dbus_property"):
787
1140
func._dbus_name = func._dbus_name[:-14]
788
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1141
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
789
1142
return func
1143
790
1144
return decorator
791
1145
792
1146
793
1147
def dbus_interface_annotations(dbus_interface):
794
1148
"""Decorator for marking functions returning interface annotations
795
1149
796
1150
Usage:
797
1151
798
1152
@dbus_interface_annotations("org.example.Interface")
799
1153
def _foo(self): # Function name does not matter
800
1154
return {"org.freedesktop.DBus.Deprecated": "true",
801
1155
"org.freedesktop.DBus.Property.EmitsChangedSignal":
802
1156
"false"}
803
1157
"""
1158
804
1159
def decorator(func):
805
1160
func._dbus_is_interface = True
806
1161
func._dbus_interface = dbus_interface
807
1162
func._dbus_name = dbus_interface
808
1163
return func
1164
809
1165
return decorator
810
1166
811
1167
812
1168
def dbus_annotations(annotations):
813
1169
"""Decorator to annotate D-Bus methods, signals or properties
814
1170
Usage:
815
1171
816
1172
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
817
1173
"org.freedesktop.DBus.Property."
818
1174
"EmitsChangedSignal": "false"})
820
1176
access="r")
821
1177
def Property_dbus_property(self):
822
1178
return dbus.Boolean(False)
1179
1180
See also the DBusObjectWithAnnotations class.
823
1181
"""
1182
824
1183
def decorator(func):
825
1184
func._dbus_annotations = annotations
826
1185
return func
1186
827
1187
return decorator
828
1188
829
1189
832
1192
"""
833
1193
pass
834
1194
1195
835
1196
class DBusPropertyAccessException(DBusPropertyException):
836
1197
"""A property's access permissions disallows an operation.
837
1198
"""
844
1205
pass
845
1206
846
1207
847
class DBusObjectWithProperties(dbus.service.Object):
848
"""A D-Bus object with properties.
849
850
Classes inheriting from this can use the dbus_service_property
851
decorator to expose methods as D-Bus properties. It exposes the
852
standard Get(), Set(), and GetAll() methods on the D-Bus.
1208
class DBusObjectWithAnnotations(dbus.service.Object):
1209
"""A D-Bus object with annotations.
1210
1211
Classes inheriting from this can use the dbus_annotations
1212
decorator to add annotations to methods or signals.
853
1213
"""
854
1214
855
1215
@staticmethod
856
1216
def _is_dbus_thing(thing):
857
1217
"""Returns a function testing if an attribute is a D-Bus thing
858
1218
859
1219
If called like _is_dbus_thing("method") it returns a function
860
1220
suitable for use as predicate to inspect.getmembers().
861
1221
"""
862
1222
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
863
1223
False)
864
1224
865
1225
def _get_all_dbus_things(self, thing):
866
1226
"""Returns a generator of (name, attribute) pairs
867
1227
"""
868
return ((getattr(athing.__get__(self), "_dbus_name",
869
name),
1228
return ((getattr(athing.__get__(self), "_dbus_name", name),
870
1229
athing.__get__(self))
871
1230
for cls in self.__class__.__mro__
872
1231
for name, athing in
873
inspect.getmembers(cls,
874
self._is_dbus_thing(thing)))
875
1232
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1233
1234
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1235
out_signature="s",
1236
path_keyword='object_path',
1237
connection_keyword='connection')
1238
def Introspect(self, object_path, connection):
1239
"""Overloading of standard D-Bus method.
1240
1241
Inserts annotation tags on methods and signals.
1242
"""
1243
xmlstring = dbus.service.Object.Introspect(self, object_path,
1244
connection)
1245
try:
1246
document = xml.dom.minidom.parseString(xmlstring)
1247
1248
for if_tag in document.getElementsByTagName("interface"):
1249
# Add annotation tags
1250
for typ in ("method", "signal"):
1251
for tag in if_tag.getElementsByTagName(typ):
1252
annots = dict()
1253
for name, prop in (self.
1254
_get_all_dbus_things(typ)):
1255
if (name == tag.getAttribute("name")
1256
and prop._dbus_interface
1257
== if_tag.getAttribute("name")):
1258
annots.update(getattr(
1259
prop, "_dbus_annotations", {}))
1260
for name, value in annots.items():
1261
ann_tag = document.createElement(
1262
"annotation")
1263
ann_tag.setAttribute("name", name)
1264
ann_tag.setAttribute("value", value)
1265
tag.appendChild(ann_tag)
1266
# Add interface annotation tags
1267
for annotation, value in dict(
1268
itertools.chain.from_iterable(
1269
annotations().items()
1270
for name, annotations
1271
in self._get_all_dbus_things("interface")
1272
if name == if_tag.getAttribute("name")
1273
)).items():
1274
ann_tag = document.createElement("annotation")
1275
ann_tag.setAttribute("name", annotation)
1276
ann_tag.setAttribute("value", value)
1277
if_tag.appendChild(ann_tag)
1278
# Fix argument name for the Introspect method itself
1279
if (if_tag.getAttribute("name")
1280
== dbus.INTROSPECTABLE_IFACE):
1281
for cn in if_tag.getElementsByTagName("method"):
1282
if cn.getAttribute("name") == "Introspect":
1283
for arg in cn.getElementsByTagName("arg"):
1284
if (arg.getAttribute("direction")
1285
== "out"):
1286
arg.setAttribute("name",
1287
"xml_data")
1288
xmlstring = document.toxml("utf-8")
1289
document.unlink()
1290
except (AttributeError, xml.dom.DOMException,
1291
xml.parsers.expat.ExpatError) as error:
1292
logger.error("Failed to override Introspection method",
1293
exc_info=error)
1294
return xmlstring
1295
1296
1297
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1298
"""A D-Bus object with properties.
1299
1300
Classes inheriting from this can use the dbus_service_property
1301
decorator to expose methods as D-Bus properties. It exposes the
1302
standard Get(), Set(), and GetAll() methods on the D-Bus.
1303
"""
1304
876
1305
def _get_dbus_property(self, interface_name, property_name):
877
1306
"""Returns a bound method if one exists which is a D-Bus
878
1307
property with the specified name and interface.
879
1308
"""
880
for cls in self.__class__.__mro__:
881
for name, value in (inspect.getmembers
882
(cls,
883
self._is_dbus_thing("property"))):
1309
for cls in self.__class__.__mro__:
1310
for name, value in inspect.getmembers(
1311
cls, self._is_dbus_thing("property")):
884
1312
if (value._dbus_name == property_name
885
1313
and value._dbus_interface == interface_name):
886
1314
return value.__get__(self)
887
1315
888
1316
# No such property
889
raise DBusPropertyNotFound(self.dbus_object_path + ":"
890
+ interface_name + "."
891
+ property_name)
892
893
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1317
raise DBusPropertyNotFound("{}:{}.{}".format(
1318
self.dbus_object_path, interface_name, property_name))
1319
1320
@classmethod
1321
def _get_all_interface_names(cls):
1322
"""Get a sequence of all interfaces supported by an object"""
1323
return (name for name in set(getattr(getattr(x, attr),
1324
"_dbus_interface", None)
1325
for x in (inspect.getmro(cls))
1326
for attr in dir(x))
1327
if name is not None)
1328
1329
@dbus.service.method(dbus.PROPERTIES_IFACE,
1330
in_signature="ss",
894
1331
out_signature="v")
895
1332
def Get(self, interface_name, property_name):
896
1333
"""Standard D-Bus property Get() method, see D-Bus standard.
902
1339
if not hasattr(value, "variant_level"):
903
1340
return value
904
1341
return type(value)(value, variant_level=value.variant_level+1)
905
1342
906
1343
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
907
1344
def Set(self, interface_name, property_name, value):
908
1345
"""Standard D-Bus property Set() method, see D-Bus standard.
920
1357
value = dbus.ByteArray(b''.join(chr(byte)
921
1358
for byte in value))
922
1359
prop(value)
923
924
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1360
1361
@dbus.service.method(dbus.PROPERTIES_IFACE,
1362
in_signature="s",
925
1363
out_signature="a{sv}")
926
1364
def GetAll(self, interface_name):
927
1365
"""Standard D-Bus property GetAll() method, see D-Bus
928
1366
standard.
929
1367
930
1368
Note: Will not include properties with access="write".
931
1369
"""
932
1370
properties = {}
942
1380
if not hasattr(value, "variant_level"):
943
1381
properties[name] = value
944
1382
continue
945
properties[name] = type(value)(value, variant_level=
946
value.variant_level+1)
1383
properties[name] = type(value)(
1384
value, variant_level=value.variant_level + 1)
947
1385
return dbus.Dictionary(properties, signature="sv")
948
1386
949
1387
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
950
1388
def PropertiesChanged(self, interface_name, changed_properties,
951
1389
invalidated_properties):
953
1391
standard.
954
1392
"""
955
1393
pass
956
1394
957
1395
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
958
1396
out_signature="s",
959
1397
path_keyword='object_path',
960
1398
connection_keyword='connection')
961
1399
def Introspect(self, object_path, connection):
962
1400
"""Overloading of standard D-Bus method.
963
1401
964
1402
Inserts property tags and interface annotation tags.
965
1403
"""
966
xmlstring = dbus.service.Object.Introspect(self, object_path,
967
connection)
1404
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1405
object_path,
1406
connection)
968
1407
try:
969
1408
document = xml.dom.minidom.parseString(xmlstring)
1409
970
1410
def make_tag(document, name, prop):
971
1411
e = document.createElement("property")
972
1412
e.setAttribute("name", name)
973
1413
e.setAttribute("type", prop._dbus_signature)
974
1414
e.setAttribute("access", prop._dbus_access)
975
1415
return e
1416
976
1417
for if_tag in document.getElementsByTagName("interface"):
977
1418
# Add property tags
978
1419
for tag in (make_tag(document, name, prop)
981
1422
if prop._dbus_interface
982
1423
== if_tag.getAttribute("name")):
983
1424
if_tag.appendChild(tag)
984
# Add annotation tags
985
for typ in ("method", "signal", "property"):
986
for tag in if_tag.getElementsByTagName(typ):
987
annots = dict()
988
for name, prop in (self.
989
_get_all_dbus_things(typ)):
990
if (name == tag.getAttribute("name")
991
and prop._dbus_interface
992
== if_tag.getAttribute("name")):
993
annots.update(getattr
994
(prop,
995
"_dbus_annotations",
996
{}))
997
for name, value in annots.items():
998
ann_tag = document.createElement(
999
"annotation")
1000
ann_tag.setAttribute("name", name)
1001
ann_tag.setAttribute("value", value)
1002
tag.appendChild(ann_tag)
1003
# Add interface annotation tags
1004
for annotation, value in dict(
1005
itertools.chain.from_iterable(
1006
annotations().items()
1007
for name, annotations in
1008
self._get_all_dbus_things("interface")
1009
if name == if_tag.getAttribute("name")
1010
)).items():
1011
ann_tag = document.createElement("annotation")
1012
ann_tag.setAttribute("name", annotation)
1013
ann_tag.setAttribute("value", value)
1014
if_tag.appendChild(ann_tag)
1425
# Add annotation tags for properties
1426
for tag in if_tag.getElementsByTagName("property"):
1427
annots = dict()
1428
for name, prop in self._get_all_dbus_things(
1429
"property"):
1430
if (name == tag.getAttribute("name")
1431
and prop._dbus_interface
1432
== if_tag.getAttribute("name")):
1433
annots.update(getattr(
1434
prop, "_dbus_annotations", {}))
1435
for name, value in annots.items():
1436
ann_tag = document.createElement(
1437
"annotation")
1438
ann_tag.setAttribute("name", name)
1439
ann_tag.setAttribute("value", value)
1440
tag.appendChild(ann_tag)
1015
1441
# Add the names to the return values for the
1016
1442
# "org.freedesktop.DBus.Properties" methods
1017
1443
if (if_tag.getAttribute("name")
1035
1461
exc_info=error)
1036
1462
return xmlstring
1037
1463
1464
try:
1465
dbus.OBJECT_MANAGER_IFACE
1466
except AttributeError:
1467
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1468
1469
1470
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1471
"""A D-Bus object with an ObjectManager.
1472
1473
Classes inheriting from this exposes the standard
1474
GetManagedObjects call and the InterfacesAdded and
1475
InterfacesRemoved signals on the standard
1476
"org.freedesktop.DBus.ObjectManager" interface.
1477
1478
Note: No signals are sent automatically; they must be sent
1479
manually.
1480
"""
1481
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1482
out_signature="a{oa{sa{sv}}}")
1483
def GetManagedObjects(self):
1484
"""This function must be overridden"""
1485
raise NotImplementedError()
1486
1487
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1488
signature="oa{sa{sv}}")
1489
def InterfacesAdded(self, object_path, interfaces_and_properties):
1490
pass
1491
1492
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1493
def InterfacesRemoved(self, object_path, interfaces):
1494
pass
1495
1496
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1497
out_signature="s",
1498
path_keyword='object_path',
1499
connection_keyword='connection')
1500
def Introspect(self, object_path, connection):
1501
"""Overloading of standard D-Bus method.
1502
1503
Override return argument name of GetManagedObjects to be
1504
"objpath_interfaces_and_properties"
1505
"""
1506
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1507
object_path,
1508
connection)
1509
try:
1510
document = xml.dom.minidom.parseString(xmlstring)
1511
1512
for if_tag in document.getElementsByTagName("interface"):
1513
# Fix argument name for the GetManagedObjects method
1514
if (if_tag.getAttribute("name")
1515
== dbus.OBJECT_MANAGER_IFACE):
1516
for cn in if_tag.getElementsByTagName("method"):
1517
if (cn.getAttribute("name")
1518
== "GetManagedObjects"):
1519
for arg in cn.getElementsByTagName("arg"):
1520
if (arg.getAttribute("direction")
1521
== "out"):
1522
arg.setAttribute(
1523
"name",
1524
"objpath_interfaces"
1525
"_and_properties")
1526
xmlstring = document.toxml("utf-8")
1527
document.unlink()
1528
except (AttributeError, xml.dom.DOMException,
1529
xml.parsers.expat.ExpatError) as error:
1530
logger.error("Failed to override Introspection method",
1531
exc_info=error)
1532
return xmlstring
1533
1038
1534
1039
1535
def datetime_to_dbus(dt, variant_level=0):
1040
1536
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1041
1537
if dt is None:
1042
return dbus.String("", variant_level = variant_level)
1043
return dbus.String(dt.isoformat(),
1044
variant_level=variant_level)
1538
return dbus.String("", variant_level=variant_level)
1539
return dbus.String(dt.isoformat(), variant_level=variant_level)
1045
1540
1046
1541
1047
1542
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1049
1544
dbus.service.Object, it will add alternate D-Bus attributes with
1050
1545
interface names according to the "alt_interface_names" mapping.
1051
1546
Usage:
1052
1547
1053
1548
@alternate_dbus_interfaces({"org.example.Interface":
1054
1549
"net.example.AlternateInterface"})
1055
1550
class SampleDBusObject(dbus.service.Object):
1056
1551
@dbus.service.method("org.example.Interface")
1057
1552
def SampleDBusMethod():
1058
1553
pass
1059
1554
1060
1555
The above "SampleDBusMethod" on "SampleDBusObject" will be
1061
1556
reachable via two interfaces: "org.example.Interface" and
1062
1557
"net.example.AlternateInterface", the latter of which will have
1063
1558
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1064
1559
"true", unless "deprecate" is passed with a False value.
1065
1560
1066
1561
This works for methods and signals, and also for D-Bus properties
1067
1562
(from DBusObjectWithProperties) and interfaces (from the
1068
1563
dbus_interface_annotations decorator).
1069
1564
"""
1565
1070
1566
def wrapper(cls):
1071
1567
for orig_interface_name, alt_interface_name in (
1072
alt_interface_names.items()):
1568
alt_interface_names.items()):
1073
1569
attr = {}
1074
1570
interface_names = set()
1075
1571
# Go though all attributes of the class
1077
1573
# Ignore non-D-Bus attributes, and D-Bus attributes
1078
1574
# with the wrong interface name
1079
1575
if (not hasattr(attribute, "_dbus_interface")
1080
or not attribute._dbus_interface
1081
.startswith(orig_interface_name)):
1576
or not attribute._dbus_interface.startswith(
1577
orig_interface_name)):
1082
1578
continue
1083
1579
# Create an alternate D-Bus interface name based on
1084
1580
# the current name
1085
alt_interface = (attribute._dbus_interface
1086
.replace(orig_interface_name,
1087
alt_interface_name))
1581
alt_interface = attribute._dbus_interface.replace(
1582
orig_interface_name, alt_interface_name)
1088
1583
interface_names.add(alt_interface)
1089
1584
# Is this a D-Bus signal?
1090
1585
if getattr(attribute, "_dbus_is_signal", False):
1091
1586
# Extract the original non-method undecorated
1092
1587
# function by black magic
1093
nonmethod_func = (dict(
1588
if sys.version_info.major == 2:
1589
nonmethod_func = (dict(
1094
1590
zip(attribute.func_code.co_freevars,
1095
attribute.__closure__))["func"]
1096
.cell_contents)
1591
attribute.__closure__))
1592
["func"].cell_contents)
1593
else:
1594
nonmethod_func = (dict(
1595
zip(attribute.__code__.co_freevars,
1596
attribute.__closure__))
1597
["func"].cell_contents)
1097
1598
# Create a new, but exactly alike, function
1098
1599
# object, and decorate it to be a new D-Bus signal
1099
1600
# with the alternate D-Bus interface name
1100
new_function = (dbus.service.signal
1101
(alt_interface,
1102
attribute._dbus_signature)
1103
(types.FunctionType(
1104
nonmethod_func.func_code,
1105
nonmethod_func.func_globals,
1106
nonmethod_func.func_name,
1107
nonmethod_func.func_defaults,
1108
nonmethod_func.func_closure)))
1601
new_function = copy_function(nonmethod_func)
1602
new_function = (dbus.service.signal(
1603
alt_interface,
1604
attribute._dbus_signature)(new_function))
1109
1605
# Copy annotations, if any
1110
1606
try:
1111
new_function._dbus_annotations = (
1112
dict(attribute._dbus_annotations))
1607
new_function._dbus_annotations = dict(
1608
attribute._dbus_annotations)
1113
1609
except AttributeError:
1114
1610
pass
1611
1115
1612
# Define a creator of a function to call both the
1116
1613
# original and alternate functions, so both the
1117
1614
# original and alternate signals gets sent when
1120
1617
"""This function is a scope container to pass
1121
1618
func1 and func2 to the "call_both" function
1122
1619
outside of its arguments"""
1620
1621
@functools.wraps(func2)
1123
1622
def call_both(*args, **kwargs):
1124
1623
"""This function will emit two D-Bus
1125
1624
signals by calling func1 and func2"""
1126
1625
func1(*args, **kwargs)
1127
1626
func2(*args, **kwargs)
1627
# Make wrapper function look like a D-Bus
1628
# signal
1629
for name, attr in inspect.getmembers(func2):
1630
if name.startswith("_dbus_"):
1631
setattr(call_both, name, attr)
1632
1128
1633
return call_both
1129
1634
# Create the "call_both" function and add it to
1130
1635
# the class
1135
1640
# object. Decorate it to be a new D-Bus method
1136
1641
# with the alternate D-Bus interface name. Add it
1137
1642
# to the class.
1138
attr[attrname] = (dbus.service.method
1139
(alt_interface,
1140
attribute._dbus_in_signature,
1141
attribute._dbus_out_signature)
1142
(types.FunctionType
1143
(attribute.func_code,
1144
attribute.func_globals,
1145
attribute.func_name,
1146
attribute.func_defaults,
1147
attribute.func_closure)))
1643
attr[attrname] = (
1644
dbus.service.method(
1645
alt_interface,
1646
attribute._dbus_in_signature,
1647
attribute._dbus_out_signature)
1648
(copy_function(attribute)))
1148
1649
# Copy annotations, if any
1149
1650
try:
1150
attr[attrname]._dbus_annotations = (
1151
dict(attribute._dbus_annotations))
1651
attr[attrname]._dbus_annotations = dict(
1652
attribute._dbus_annotations)
1152
1653
except AttributeError:
1153
1654
pass
1154
1655
# Is this a D-Bus property?
1157
1658
# object, and decorate it to be a new D-Bus
1158
1659
# property with the alternate D-Bus interface
1159
1660
# name. Add it to the class.
1160
attr[attrname] = (dbus_service_property
1161
(alt_interface,
1162
attribute._dbus_signature,
1163
attribute._dbus_access,
1164
attribute
1165
._dbus_get_args_options
1166
["byte_arrays"])
1167
(types.FunctionType
1168
(attribute.func_code,
1169
attribute.func_globals,
1170
attribute.func_name,
1171
attribute.func_defaults,
1172
attribute.func_closure)))
1661
attr[attrname] = (dbus_service_property(
1662
alt_interface, attribute._dbus_signature,
1663
attribute._dbus_access,
1664
attribute._dbus_get_args_options
1665
["byte_arrays"])
1666
(copy_function(attribute)))
1173
1667
# Copy annotations, if any
1174
1668
try:
1175
attr[attrname]._dbus_annotations = (
1176
dict(attribute._dbus_annotations))
1669
attr[attrname]._dbus_annotations = dict(
1670
attribute._dbus_annotations)
1177
1671
except AttributeError:
1178
1672
pass
1179
1673
# Is this a D-Bus interface?
1182
1676
# object. Decorate it to be a new D-Bus interface
1183
1677
# with the alternate D-Bus interface name. Add it
1184
1678
# to the class.
1185
attr[attrname] = (dbus_interface_annotations
1186
(alt_interface)
1187
(types.FunctionType
1188
(attribute.func_code,
1189
attribute.func_globals,
1190
attribute.func_name,
1191
attribute.func_defaults,
1192
attribute.func_closure)))
1679
attr[attrname] = (
1680
dbus_interface_annotations(alt_interface)
1681
(copy_function(attribute)))
1193
1682
if deprecate:
1194
1683
# Deprecate all alternate interfaces
1195
iname="_AlternateDBusNames_interface_annotation{}"
1684
iname = "_AlternateDBusNames_interface_annotation{}"
1196
1685
for interface_name in interface_names:
1686
1197
1687
@dbus_interface_annotations(interface_name)
1198
1688
def func(self):
1199
return { "org.freedesktop.DBus.Deprecated":
1200
"true" }
1689
return {"org.freedesktop.DBus.Deprecated":
1690
"true"}
1201
1691
# Find an unused name
1202
1692
for aname in (iname.format(i)
1203
1693
for i in itertools.count()):
1207
1697
if interface_names:
1208
1698
# Replace the class with a new subclass of it with
1209
1699
# methods, signals, etc. as created above.
1210
cls = type(b"{}Alternate".format(cls.__name__),
1211
(cls,), attr)
1700
if sys.version_info.major == 2:
1701
cls = type(b"{}Alternate".format(cls.__name__),
1702
(cls, ), attr)
1703
else:
1704
cls = type("{}Alternate".format(cls.__name__),
1705
(cls, ), attr)
1212
1706
return cls
1707
1213
1708
return wrapper
1214
1709
1215
1710
1216
1711
@alternate_dbus_interfaces({"se.recompile.Mandos":
1217
"se.bsnet.fukt.Mandos"})
1712
"se.bsnet.fukt.Mandos"})
1218
1713
class ClientDBus(Client, DBusObjectWithProperties):
1219
1714
"""A Client class using D-Bus
1220
1715
1221
1716
Attributes:
1222
1717
dbus_object_path: dbus.ObjectPath
1223
1718
bus: dbus.SystemBus()
1224
1719
"""
1225
1720
1226
1721
runtime_expansions = (Client.runtime_expansions
1227
+ ("dbus_object_path",))
1228
1722
+ ("dbus_object_path", ))
1723
1229
1724
_interface = "se.recompile.Mandos.Client"
1230
1725
1231
1726
# dbus.service.Object doesn't use super(), so we can't either.
1232
1233
def __init__(self, bus = None, *args, **kwargs):
1727
1728
def __init__(self, bus=None, *args, **kwargs):
1234
1729
self.bus = bus
1235
1730
Client.__init__(self, *args, **kwargs)
1236
1731
# Only now, when this client is initialized, can it show up on
1238
1733
client_object_name = str(self.name).translate(
1239
1734
{ord("."): ord("_"),
1240
1735
ord("-"): ord("_")})
1241
self.dbus_object_path = (dbus.ObjectPath
1242
("/clients/" + client_object_name))
1736
self.dbus_object_path = dbus.ObjectPath(
1737
"/clients/" + client_object_name)
1243
1738
DBusObjectWithProperties.__init__(self, self.bus,
1244
1739
self.dbus_object_path)
1245
1246
def notifychangeproperty(transform_func,
1247
dbus_name, type_func=lambda x: x,
1248
variant_level=1, invalidate_only=False,
1740
1741
def notifychangeproperty(transform_func, dbus_name,
1742
type_func=lambda x: x,
1743
variant_level=1,
1744
invalidate_only=False,
1249
1745
_interface=_interface):
1250
1746
""" Modify a variable so that it's a property which announces
1251
1747
its changes to DBus.
1252
1748
1253
1749
transform_fun: Function that takes a value and a variant_level
1254
1750
and transforms it to a D-Bus type.
1255
1751
dbus_name: D-Bus name of the variable
1258
1754
variant_level: D-Bus variant level. Default: 1
1259
1755
"""
1260
1756
attrname = "_{}".format(dbus_name)
1757
1261
1758
def setter(self, value):
1262
1759
if hasattr(self, "dbus_object_path"):
1263
1760
if (not hasattr(self, attrname) or
1264
1761
type_func(getattr(self, attrname, None))
1265
1762
!= type_func(value)):
1266
1763
if invalidate_only:
1267
self.PropertiesChanged(_interface,
1268
dbus.Dictionary(),
1269
dbus.Array
1270
((dbus_name,)))
1764
self.PropertiesChanged(
1765
_interface, dbus.Dictionary(),
1766
dbus.Array((dbus_name, )))
1271
1767
else:
1272
dbus_value = transform_func(type_func(value),
1273
variant_level
1274
=variant_level)
1768
dbus_value = transform_func(
1769
type_func(value),
1770
variant_level=variant_level)
1275
1771
self.PropertyChanged(dbus.String(dbus_name),
1276
1772
dbus_value)
1277
self.PropertiesChanged(_interface,
1278
dbus.Dictionary({
1279
dbus.String(dbus_name):
1280
dbus_value }), dbus.Array())
1773
self.PropertiesChanged(
1774
_interface,
1775
dbus.Dictionary({dbus.String(dbus_name):
1776
dbus_value}),
1777
dbus.Array())
1281
1778
setattr(self, attrname, value)
1282
1779
1283
1780
return property(lambda self: getattr(self, attrname), setter)
1284
1781
1285
1782
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1286
1783
approvals_pending = notifychangeproperty(dbus.Boolean,
1287
1784
"ApprovalPending",
1288
type_func = bool)
1785
type_func=bool)
1289
1786
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1290
1787
last_enabled = notifychangeproperty(datetime_to_dbus,
1291
1788
"LastEnabled")
1292
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1293
type_func = lambda checker:
1294
checker is not None)
1789
checker = notifychangeproperty(
1790
dbus.Boolean, "CheckerRunning",
1791
type_func=lambda checker: checker is not None)
1295
1792
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1296
1793
"LastCheckedOK")
1297
1794
last_checker_status = notifychangeproperty(dbus.Int16,
1300
1797
datetime_to_dbus, "LastApprovalRequest")
1301
1798
approved_by_default = notifychangeproperty(dbus.Boolean,
1302
1799
"ApprovedByDefault")
1303
approval_delay = notifychangeproperty(dbus.UInt64,
1304
"ApprovalDelay",
1305
type_func =
1306
lambda td: td.total_seconds()
1307
* 1000)
1800
approval_delay = notifychangeproperty(
1801
dbus.UInt64, "ApprovalDelay",
1802
type_func=lambda td: td.total_seconds() * 1000)
1308
1803
approval_duration = notifychangeproperty(
1309
1804
dbus.UInt64, "ApprovalDuration",
1310
type_func = lambda td: td.total_seconds() * 1000)
1805
type_func=lambda td: td.total_seconds() * 1000)
1311
1806
host = notifychangeproperty(dbus.String, "Host")
1312
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1313
type_func = lambda td:
1314
td.total_seconds() * 1000)
1807
timeout = notifychangeproperty(
1808
dbus.UInt64, "Timeout",
1809
type_func=lambda td: td.total_seconds() * 1000)
1315
1810
extended_timeout = notifychangeproperty(
1316
1811
dbus.UInt64, "ExtendedTimeout",
1317
type_func = lambda td: td.total_seconds() * 1000)
1318
interval = notifychangeproperty(dbus.UInt64,
1319
"Interval",
1320
type_func =
1321
lambda td: td.total_seconds()
1322
* 1000)
1812
type_func=lambda td: td.total_seconds() * 1000)
1813
interval = notifychangeproperty(
1814
dbus.UInt64, "Interval",
1815
type_func=lambda td: td.total_seconds() * 1000)
1323
1816
checker_command = notifychangeproperty(dbus.String, "Checker")
1324
1817
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1325
1818
invalidate_only=True)
1326
1819
1327
1820
del notifychangeproperty
1328
1821
1329
1822
def __del__(self, *args, **kwargs):
1330
1823
try:
1331
1824
self.remove_from_connection()
1334
1827
if hasattr(DBusObjectWithProperties, "__del__"):
1335
1828
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1336
1829
Client.__del__(self, *args, **kwargs)
1337
1338
def checker_callback(self, pid, condition, command,
1339
*args, **kwargs):
1340
self.checker_callback_tag = None
1341
self.checker = None
1342
if os.WIFEXITED(condition):
1343
exitstatus = os.WEXITSTATUS(condition)
1830
1831
def checker_callback(self, source, condition,
1832
connection, command, *args, **kwargs):
1833
ret = Client.checker_callback(self, source, condition,
1834
connection, command, *args,
1835
**kwargs)
1836
exitstatus = self.last_checker_status
1837
if exitstatus >= 0:
1344
1838
# Emit D-Bus signal
1345
1839
self.CheckerCompleted(dbus.Int16(exitstatus),
1346
dbus.Int64(condition),
1840
# This is specific to GNU libC
1841
dbus.Int64(exitstatus << 8),
1347
1842
dbus.String(command))
1348
1843
else:
1349
1844
# Emit D-Bus signal
1350
1845
self.CheckerCompleted(dbus.Int16(-1),
1351
dbus.Int64(condition),
1846
dbus.Int64(
1847
# This is specific to GNU libC
1848
(exitstatus << 8)
1849
| self.last_checker_signal),
1352
1850
dbus.String(command))
1353
1354
return Client.checker_callback(self, pid, condition, command,
1355
*args, **kwargs)
1356
1851
return ret
1852
1357
1853
def start_checker(self, *args, **kwargs):
1358
1854
old_checker_pid = getattr(self.checker, "pid", None)
1359
1855
r = Client.start_checker(self, *args, **kwargs)
1363
1859
# Emit D-Bus signal
1364
1860
self.CheckerStarted(self.current_checker_command)
1365
1861
return r
1366
1862
1367
1863
def _reset_approved(self):
1368
1864
self.approved = None
1369
1865
return False
1370
1866
1371
1867
def approve(self, value=True):
1372
1868
self.approved = value
1373
gobject.timeout_add(int(self.approval_duration.total_seconds()
1374
* 1000), self._reset_approved)
1869
GLib.timeout_add(int(self.approval_duration.total_seconds()
1870
* 1000), self._reset_approved)
1375
1871
self.send_changedstate()
1376
1377
## D-Bus methods, signals & properties
1378
1379
## Interfaces
1380
1381
## Signals
1382
1872
1873
# D-Bus methods, signals & properties
1874
1875
# Interfaces
1876
1877
# Signals
1878
1383
1879
# CheckerCompleted - signal
1384
1880
@dbus.service.signal(_interface, signature="nxs")
1385
1881
def CheckerCompleted(self, exitcode, waitstatus, command):
1386
1882
"D-Bus signal"
1387
1883
pass
1388
1884
1389
1885
# CheckerStarted - signal
1390
1886
@dbus.service.signal(_interface, signature="s")
1391
1887
def CheckerStarted(self, command):
1392
1888
"D-Bus signal"
1393
1889
pass
1394
1890
1395
1891
# PropertyChanged - signal
1396
1892
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1397
1893
@dbus.service.signal(_interface, signature="sv")
1398
1894
def PropertyChanged(self, property, value):
1399
1895
"D-Bus signal"
1400
1896
pass
1401
1897
1402
1898
# GotSecret - signal
1403
1899
@dbus.service.signal(_interface)
1404
1900
def GotSecret(self):
1407
1903
server to mandos-client
1408
1904
"""
1409
1905
pass
1410
1906
1411
1907
# Rejected - signal
1412
1908
@dbus.service.signal(_interface, signature="s")
1413
1909
def Rejected(self, reason):
1414
1910
"D-Bus signal"
1415
1911
pass
1416
1912
1417
1913
# NeedApproval - signal
1418
1914
@dbus.service.signal(_interface, signature="tb")
1419
1915
def NeedApproval(self, timeout, default):
1420
1916
"D-Bus signal"
1421
1917
return self.need_approval()
1422
1423
## Methods
1424
1918
1919
# Methods
1920
1425
1921
# Approve - method
1426
1922
@dbus.service.method(_interface, in_signature="b")
1427
1923
def Approve(self, value):
1428
1924
self.approve(value)
1429
1925
1430
1926
# CheckedOK - method
1431
1927
@dbus.service.method(_interface)
1432
1928
def CheckedOK(self):
1433
1929
self.checked_ok()
1434
1930
1435
1931
# Enable - method
1932
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1436
1933
@dbus.service.method(_interface)
1437
1934
def Enable(self):
1438
1935
"D-Bus method"
1439
1936
self.enable()
1440
1937
1441
1938
# StartChecker - method
1939
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1442
1940
@dbus.service.method(_interface)
1443
1941
def StartChecker(self):
1444
1942
"D-Bus method"
1445
1943
self.start_checker()
1446
1944
1447
1945
# Disable - method
1946
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1448
1947
@dbus.service.method(_interface)
1449
1948
def Disable(self):
1450
1949
"D-Bus method"
1451
1950
self.disable()
1452
1951
1453
1952
# StopChecker - method
1953
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1454
1954
@dbus.service.method(_interface)
1455
1955
def StopChecker(self):
1456
1956
self.stop_checker()
1457
1458
## Properties
1459
1957
1958
# Properties
1959
1460
1960
# ApprovalPending - property
1461
1961
@dbus_service_property(_interface, signature="b", access="read")
1462
1962
def ApprovalPending_dbus_property(self):
1463
1963
return dbus.Boolean(bool(self.approvals_pending))
1464
1964
1465
1965
# ApprovedByDefault - property
1466
@dbus_service_property(_interface, signature="b",
1966
@dbus_service_property(_interface,
1967
signature="b",
1467
1968
access="readwrite")
1468
1969
def ApprovedByDefault_dbus_property(self, value=None):
1469
1970
if value is None: # get
1470
1971
return dbus.Boolean(self.approved_by_default)
1471
1972
self.approved_by_default = bool(value)
1472
1973
1473
1974
# ApprovalDelay - property
1474
@dbus_service_property(_interface, signature="t",
1975
@dbus_service_property(_interface,
1976
signature="t",
1475
1977
access="readwrite")
1476
1978
def ApprovalDelay_dbus_property(self, value=None):
1477
1979
if value is None: # get
1478
1980
return dbus.UInt64(self.approval_delay.total_seconds()
1479
1981
* 1000)
1480
1982
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1481
1983
1482
1984
# ApprovalDuration - property
1483
@dbus_service_property(_interface, signature="t",
1985
@dbus_service_property(_interface,
1986
signature="t",
1484
1987
access="readwrite")
1485
1988
def ApprovalDuration_dbus_property(self, value=None):
1486
1989
if value is None: # get
1487
1990
return dbus.UInt64(self.approval_duration.total_seconds()
1488
1991
* 1000)
1489
1992
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1490
1993
1491
1994
# Name - property
1995
@dbus_annotations(
1996
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1492
1997
@dbus_service_property(_interface, signature="s", access="read")
1493
1998
def Name_dbus_property(self):
1494
1999
return dbus.String(self.name)
1495
2000
1496
2001
# Fingerprint - property
2002
@dbus_annotations(
2003
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1497
2004
@dbus_service_property(_interface, signature="s", access="read")
1498
2005
def Fingerprint_dbus_property(self):
1499
2006
return dbus.String(self.fingerprint)
1500
2007
1501
2008
# Host - property
1502
@dbus_service_property(_interface, signature="s",
2009
@dbus_service_property(_interface,
2010
signature="s",
1503
2011
access="readwrite")
1504
2012
def Host_dbus_property(self, value=None):
1505
2013
if value is None: # get
1506
2014
return dbus.String(self.host)
1507
2015
self.host = str(value)
1508
2016
1509
2017
# Created - property
2018
@dbus_annotations(
2019
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1510
2020
@dbus_service_property(_interface, signature="s", access="read")
1511
2021
def Created_dbus_property(self):
1512
2022
return datetime_to_dbus(self.created)
1513
2023
1514
2024
# LastEnabled - property
1515
2025
@dbus_service_property(_interface, signature="s", access="read")
1516
2026
def LastEnabled_dbus_property(self):
1517
2027
return datetime_to_dbus(self.last_enabled)
1518
2028
1519
2029
# Enabled - property
1520
@dbus_service_property(_interface, signature="b",
2030
@dbus_service_property(_interface,
2031
signature="b",
1521
2032
access="readwrite")
1522
2033
def Enabled_dbus_property(self, value=None):
1523
2034
if value is None: # get
1526
2037
self.enable()
1527
2038
else:
1528
2039
self.disable()
1529
2040
1530
2041
# LastCheckedOK - property
1531
@dbus_service_property(_interface, signature="s",
2042
@dbus_service_property(_interface,
2043
signature="s",
1532
2044
access="readwrite")
1533
2045
def LastCheckedOK_dbus_property(self, value=None):
1534
2046
if value is not None:
1535
2047
self.checked_ok()
1536
2048
return
1537
2049
return datetime_to_dbus(self.last_checked_ok)
1538
2050
1539
2051
# LastCheckerStatus - property
1540
@dbus_service_property(_interface, signature="n",
1541
access="read")
2052
@dbus_service_property(_interface, signature="n", access="read")
1542
2053
def LastCheckerStatus_dbus_property(self):
1543
2054
return dbus.Int16(self.last_checker_status)
1544
2055
1545
2056
# Expires - property
1546
2057
@dbus_service_property(_interface, signature="s", access="read")
1547
2058
def Expires_dbus_property(self):
1548
2059
return datetime_to_dbus(self.expires)
1549
2060
1550
2061
# LastApprovalRequest - property
1551
2062
@dbus_service_property(_interface, signature="s", access="read")
1552
2063
def LastApprovalRequest_dbus_property(self):
1553
2064
return datetime_to_dbus(self.last_approval_request)
1554
2065
1555
2066
# Timeout - property
1556
@dbus_service_property(_interface, signature="t",
2067
@dbus_service_property(_interface,
2068
signature="t",
1557
2069
access="readwrite")
1558
2070
def Timeout_dbus_property(self, value=None):
1559
2071
if value is None: # get
1571
2083
if (getattr(self, "disable_initiator_tag", None)
1572
2084
is None):
1573
2085
return
1574
gobject.source_remove(self.disable_initiator_tag)
1575
self.disable_initiator_tag = (
1576
gobject.timeout_add(
1577
int((self.expires - now).total_seconds()
1578
* 1000), self.disable))
1579
2086
GLib.source_remove(self.disable_initiator_tag)
2087
self.disable_initiator_tag = GLib.timeout_add(
2088
int((self.expires - now).total_seconds() * 1000),
2089
self.disable)
2090
1580
2091
# ExtendedTimeout - property
1581
@dbus_service_property(_interface, signature="t",
2092
@dbus_service_property(_interface,
2093
signature="t",
1582
2094
access="readwrite")
1583
2095
def ExtendedTimeout_dbus_property(self, value=None):
1584
2096
if value is None: # get
1585
2097
return dbus.UInt64(self.extended_timeout.total_seconds()
1586
2098
* 1000)
1587
2099
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1588
2100
1589
2101
# Interval - property
1590
@dbus_service_property(_interface, signature="t",
2102
@dbus_service_property(_interface,
2103
signature="t",
1591
2104
access="readwrite")
1592
2105
def Interval_dbus_property(self, value=None):
1593
2106
if value is None: # get
1597
2110
return
1598
2111
if self.enabled:
1599
2112
# Reschedule checker run
1600
gobject.source_remove(self.checker_initiator_tag)
1601
self.checker_initiator_tag = (gobject.timeout_add
1602
(value, self.start_checker))
1603
self.start_checker() # Start one now, too
1604
2113
GLib.source_remove(self.checker_initiator_tag)
2114
self.checker_initiator_tag = GLib.timeout_add(
2115
value, self.start_checker)
2116
self.start_checker() # Start one now, too
2117
1605
2118
# Checker - property
1606
@dbus_service_property(_interface, signature="s",
2119
@dbus_service_property(_interface,
2120
signature="s",
1607
2121
access="readwrite")
1608
2122
def Checker_dbus_property(self, value=None):
1609
2123
if value is None: # get
1610
2124
return dbus.String(self.checker_command)
1611
2125
self.checker_command = str(value)
1612
2126
1613
2127
# CheckerRunning - property
1614
@dbus_service_property(_interface, signature="b",
2128
@dbus_service_property(_interface,
2129
signature="b",
1615
2130
access="readwrite")
1616
2131
def CheckerRunning_dbus_property(self, value=None):
1617
2132
if value is None: # get
1620
2135
self.start_checker()
1621
2136
else:
1622
2137
self.stop_checker()
1623
2138
1624
2139
# ObjectPath - property
2140
@dbus_annotations(
2141
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2142
"org.freedesktop.DBus.Deprecated": "true"})
1625
2143
@dbus_service_property(_interface, signature="o", access="read")
1626
2144
def ObjectPath_dbus_property(self):
1627
return self.dbus_object_path # is already a dbus.ObjectPath
1628
2145
return self.dbus_object_path # is already a dbus.ObjectPath
2146
1629
2147
# Secret = property
1630
@dbus_service_property(_interface, signature="ay",
1631
access="write", byte_arrays=True)
2148
@dbus_annotations(
2149
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2150
"invalidates"})
2151
@dbus_service_property(_interface,
2152
signature="ay",
2153
access="write",
2154
byte_arrays=True)
1632
2155
def Secret_dbus_property(self, value):
1633
2156
self.secret = bytes(value)
1634
2157
1635
2158
del _interface
1636
2159
1637
2160
1640
2163
self._pipe = child_pipe
1641
2164
self._pipe.send(('init', fpr, address))
1642
2165
if not self._pipe.recv():
1643
raise KeyError()
1644
2166
raise KeyError(fpr)
2167
1645
2168
def __getattribute__(self, name):
1646
2169
if name == '_pipe':
1647
2170
return super(ProxyClient, self).__getattribute__(name)
1650
2173
if data[0] == 'data':
1651
2174
return data[1]
1652
2175
if data[0] == 'function':
2176
1653
2177
def func(*args, **kwargs):
1654
2178
self._pipe.send(('funcall', name, args, kwargs))
1655
2179
return self._pipe.recv()[1]
2180
1656
2181
return func
1657
2182
1658
2183
def __setattr__(self, name, value):
1659
2184
if name == '_pipe':
1660
2185
return super(ProxyClient, self).__setattr__(name, value)
1663
2188
1664
2189
class ClientHandler(socketserver.BaseRequestHandler, object):
1665
2190
"""A class to handle client connections.
1666
2191
1667
2192
Instantiated once for each connection to handle it.
1668
2193
Note: This will run in its own forked process."""
1669
2194
1670
2195
def handle(self):
1671
2196
with contextlib.closing(self.server.child_pipe) as child_pipe:
1672
2197
logger.info("TCP connection from: %s",
1673
2198
str(self.client_address))
1674
2199
logger.debug("Pipe FD: %d",
1675
2200
self.server.child_pipe.fileno())
1676
1677
session = (gnutls.connection
1678
.ClientSession(self.request,
1679
gnutls.connection
1680
.X509Credentials()))
1681
1682
# Note: gnutls.connection.X509Credentials is really a
1683
# generic GnuTLS certificate credentials object so long as
1684
# no X.509 keys are added to it. Therefore, we can use it
1685
# here despite using OpenPGP certificates.
1686
1687
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1688
# "+AES-256-CBC", "+SHA1",
1689
# "+COMP-NULL", "+CTYPE-OPENPGP",
1690
# "+DHE-DSS"))
2201
2202
session = gnutls.ClientSession(self.request)
2203
2204
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2205
# "+AES-256-CBC", "+SHA1",
2206
# "+COMP-NULL", "+CTYPE-OPENPGP",
2207
# "+DHE-DSS"))
1691
2208
# Use a fallback default, since this MUST be set.
1692
2209
priority = self.server.gnutls_priority
1693
2210
if priority is None:
1694
2211
priority = "NORMAL"
1695
(gnutls.library.functions
1696
.gnutls_priority_set_direct(session._c_object,
1697
priority, None))
1698
2212
gnutls.priority_set_direct(session._c_object,
2213
priority.encode("utf-8"),
2214
None)
2215
1699
2216
# Start communication using the Mandos protocol
1700
2217
# Get protocol number
1701
2218
line = self.request.makefile().readline()
1706
2223
except (ValueError, IndexError, RuntimeError) as error:
1707
2224
logger.error("Unknown protocol version: %s", error)
1708
2225
return
1709
2226
1710
2227
# Start GnuTLS connection
1711
2228
try:
1712
2229
session.handshake()
1713
except gnutls.errors.GNUTLSError as error:
2230
except gnutls.Error as error:
1714
2231
logger.warning("Handshake failed: %s", error)
1715
2232
# Do not run session.bye() here: the session is not
1716
2233
# established. Just abandon the request.
1717
2234
return
1718
2235
logger.debug("Handshake succeeded")
1719
2236
1720
2237
approval_required = False
1721
2238
try:
1722
2239
try:
1723
fpr = self.fingerprint(self.peer_certificate
1724
(session))
1725
except (TypeError,
1726
gnutls.errors.GNUTLSError) as error:
2240
fpr = self.fingerprint(
2241
self.peer_certificate(session))
2242
except (TypeError, gnutls.Error) as error:
1727
2243
logger.warning("Bad certificate: %s", error)
1728
2244
return
1729
2245
logger.debug("Fingerprint: %s", fpr)
1730
2246
1731
2247
try:
1732
2248
client = ProxyClient(child_pipe, fpr,
1733
2249
self.client_address)
1734
2250
except KeyError:
1735
2251
return
1736
2252
1737
2253
if client.approval_delay:
1738
2254
delay = client.approval_delay
1739
2255
client.approvals_pending += 1
1740
2256
approval_required = True
1741
2257
1742
2258
while True:
1743
2259
if not client.enabled:
1744
2260
logger.info("Client %s is disabled",
1745
client.name)
2261
client.name)
1746
2262
if self.server.use_dbus:
1747
2263
# Emit D-Bus signal
1748
2264
client.Rejected("Disabled")
1749
2265
return
1750
2266
1751
2267
if client.approved or not client.approval_delay:
1752
#We are approved or approval is disabled
2268
# We are approved or approval is disabled
1753
2269
break
1754
2270
elif client.approved is None:
1755
2271
logger.info("Client %s needs approval",
1766
2282
# Emit D-Bus signal
1767
2283
client.Rejected("Denied")
1768
2284
return
1769
1770
#wait until timeout or approved
2285
2286
# wait until timeout or approved
1771
2287
time = datetime.datetime.now()
1772
2288
client.changedstate.acquire()
1773
2289
client.changedstate.wait(delay.total_seconds())
1786
2302
break
1787
2303
else:
1788
2304
delay -= time2 - time
1789
1790
sent_size = 0
1791
while sent_size < len(client.secret):
1792
try:
1793
sent = session.send(client.secret[sent_size:])
1794
except gnutls.errors.GNUTLSError as error:
1795
logger.warning("gnutls send failed",
1796
exc_info=error)
1797
return
1798
logger.debug("Sent: %d, remaining: %d",
1799
sent, len(client.secret)
1800
- (sent_size + sent))
1801
sent_size += sent
1802
2305
2306
try:
2307
session.send(client.secret)
2308
except gnutls.Error as error:
2309
logger.warning("gnutls send failed",
2310
exc_info=error)
2311
return
2312
1803
2313
logger.info("Sending secret to %s", client.name)
1804
2314
# bump the timeout using extended_timeout
1805
2315
client.bump_timeout(client.extended_timeout)
1806
2316
if self.server.use_dbus:
1807
2317
# Emit D-Bus signal
1808
2318
client.GotSecret()
1809
2319
1810
2320
finally:
1811
2321
if approval_required:
1812
2322
client.approvals_pending -= 1
1813
2323
try:
1814
2324
session.bye()
1815
except gnutls.errors.GNUTLSError as error:
2325
except gnutls.Error as error:
1816
2326
logger.warning("GnuTLS bye failed",
1817
2327
exc_info=error)
1818
2328
1819
2329
@staticmethod
1820
2330
def peer_certificate(session):
1821
2331
"Return the peer's OpenPGP certificate as a bytestring"
1822
2332
# If not an OpenPGP certificate...
1823
if (gnutls.library.functions
1824
.gnutls_certificate_type_get(session._c_object)
1825
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1826
# ...do the normal thing
1827
return session.peer_certificate
2333
if (gnutls.certificate_type_get(session._c_object)
2334
!= gnutls.CRT_OPENPGP):
2335
# ...return invalid data
2336
return b""
1828
2337
list_size = ctypes.c_uint(1)
1829
cert_list = (gnutls.library.functions
1830
.gnutls_certificate_get_peers
2338
cert_list = (gnutls.certificate_get_peers
1831
2339
(session._c_object, ctypes.byref(list_size)))
1832
2340
if not bool(cert_list) and list_size.value != 0:
1833
raise gnutls.errors.GNUTLSError("error getting peer"
1834
" certificate")
2341
raise gnutls.Error("error getting peer certificate")
1835
2342
if list_size.value == 0:
1836
2343
return None
1837
2344
cert = cert_list[0]
1838
2345
return ctypes.string_at(cert.data, cert.size)
1839
2346
1840
2347
@staticmethod
1841
2348
def fingerprint(openpgp):
1842
2349
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1843
2350
# New GnuTLS "datum" with the OpenPGP public key
1844
datum = (gnutls.library.types
1845
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1846
ctypes.POINTER
1847
(ctypes.c_ubyte)),
1848
ctypes.c_uint(len(openpgp))))
2351
datum = gnutls.datum_t(
2352
ctypes.cast(ctypes.c_char_p(openpgp),
2353
ctypes.POINTER(ctypes.c_ubyte)),
2354
ctypes.c_uint(len(openpgp)))
1849
2355
# New empty GnuTLS certificate
1850
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1851
(gnutls.library.functions
1852
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2356
crt = gnutls.openpgp_crt_t()
2357
gnutls.openpgp_crt_init(ctypes.byref(crt))
1853
2358
# Import the OpenPGP public key into the certificate
1854
(gnutls.library.functions
1855
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1856
gnutls.library.constants
1857
.GNUTLS_OPENPGP_FMT_RAW))
2359
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2360
gnutls.OPENPGP_FMT_RAW)
1858
2361
# Verify the self signature in the key
1859
2362
crtverify = ctypes.c_uint()
1860
(gnutls.library.functions
1861
.gnutls_openpgp_crt_verify_self(crt, 0,
1862
ctypes.byref(crtverify)))
2363
gnutls.openpgp_crt_verify_self(crt, 0,
2364
ctypes.byref(crtverify))
1863
2365
if crtverify.value != 0:
1864
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1865
raise (gnutls.errors.CertificateSecurityError
1866
("Verify failed"))
2366
gnutls.openpgp_crt_deinit(crt)
2367
raise gnutls.CertificateSecurityError("Verify failed")
1867
2368
# New buffer for the fingerprint
1868
2369
buf = ctypes.create_string_buffer(20)
1869
2370
buf_len = ctypes.c_size_t()
1870
2371
# Get the fingerprint from the certificate into the buffer
1871
(gnutls.library.functions
1872
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1873
ctypes.byref(buf_len)))
2372
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2373
ctypes.byref(buf_len))
1874
2374
# Deinit the certificate
1875
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2375
gnutls.openpgp_crt_deinit(crt)
1876
2376
# Convert the buffer to a Python bytestring
1877
2377
fpr = ctypes.string_at(buf, buf_len.value)
1878
2378
# Convert the bytestring to hexadecimal notation
1882
2382
1883
2383
class MultiprocessingMixIn(object):
1884
2384
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2385
1885
2386
def sub_process_main(self, request, address):
1886
2387
try:
1887
2388
self.finish_request(request, address)
1888
2389
except Exception:
1889
2390
self.handle_error(request, address)
1890
2391
self.close_request(request)
1891
2392
1892
2393
def process_request(self, request, address):
1893
2394
"""Start a new process to process the request."""
1894
proc = multiprocessing.Process(target = self.sub_process_main,
1895
args = (request, address))
2395
proc = multiprocessing.Process(target=self.sub_process_main,
2396
args=(request, address))
1896
2397
proc.start()
1897
2398
return proc
1898
2399
1899
2400
1900
2401
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1901
2402
""" adds a pipe to the MixIn """
2403
1902
2404
def process_request(self, request, client_address):
1903
2405
"""Overrides and wraps the original process_request().
1904
2406
1905
2407
This function creates a new pipe in self.pipe
1906
2408
"""
1907
2409
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1908
2410
1909
2411
proc = MultiprocessingMixIn.process_request(self, request,
1910
2412
client_address)
1911
2413
self.child_pipe.close()
1912
2414
self.add_pipe(parent_pipe, proc)
1913
2415
1914
2416
def add_pipe(self, parent_pipe, proc):
1915
2417
"""Dummy function; override as necessary"""
1916
2418
raise NotImplementedError()
1919
2421
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1920
2422
socketserver.TCPServer, object):
1921
2423
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1922
2424
1923
2425
Attributes:
1924
2426
enabled: Boolean; whether this server is activated yet
1925
2427
interface: None or a network interface name (string)
1926
2428
use_ipv6: Boolean; to use IPv6 or not
1927
2429
"""
2430
1928
2431
def __init__(self, server_address, RequestHandlerClass,
1929
interface=None, use_ipv6=True, socketfd=None):
2432
interface=None,
2433
use_ipv6=True,
2434
socketfd=None):
1930
2435
"""If socketfd is set, use that file descriptor instead of
1931
2436
creating a new one with socket.socket().
1932
2437
"""
1938
2443
self.socketfd = socketfd
1939
2444
# Save the original socket.socket() function
1940
2445
self.socket_socket = socket.socket
2446
1941
2447
# To implement --socket, we monkey patch socket.socket.
1942
#
2448
#
1943
2449
# (When socketserver.TCPServer is a new-style class, we
1944
2450
# could make self.socket into a property instead of monkey
1945
2451
# patching socket.socket.)
1946
#
2452
#
1947
2453
# Create a one-time-only replacement for socket.socket()
1948
2454
@functools.wraps(socket.socket)
1949
2455
def socket_wrapper(*args, **kwargs):
1961
2467
# socket_wrapper(), if socketfd was set.
1962
2468
socketserver.TCPServer.__init__(self, server_address,
1963
2469
RequestHandlerClass)
1964
2470
1965
2471
def server_bind(self):
1966
2472
"""This overrides the normal server_bind() function
1967
2473
to bind to an interface if one was specified, and also NOT to
1968
2474
bind to an address or port if they were not specified."""
2475
global SO_BINDTODEVICE
1969
2476
if self.interface is not None:
1970
2477
if SO_BINDTODEVICE is None:
1971
logger.error("SO_BINDTODEVICE does not exist;"
1972
" cannot bind to interface %s",
1973
self.interface)
1974
else:
1975
try:
1976
self.socket.setsockopt(socket.SOL_SOCKET,
1977
SO_BINDTODEVICE,
1978
(self.interface + "\0")
1979
.encode("utf-8"))
1980
except socket.error as error:
1981
if error.errno == errno.EPERM:
1982
logger.error("No permission to bind to"
1983
" interface %s", self.interface)
1984
elif error.errno == errno.ENOPROTOOPT:
1985
logger.error("SO_BINDTODEVICE not available;"
1986
" cannot bind to interface %s",
1987
self.interface)
1988
elif error.errno == errno.ENODEV:
1989
logger.error("Interface %s does not exist,"
1990
" cannot bind", self.interface)
1991
else:
1992
raise
2478
# Fall back to a hard-coded value which seems to be
2479
# common enough.
2480
logger.warning("SO_BINDTODEVICE not found, trying 25")
2481
SO_BINDTODEVICE = 25
2482
try:
2483
self.socket.setsockopt(
2484
socket.SOL_SOCKET, SO_BINDTODEVICE,
2485
(self.interface + "\0").encode("utf-8"))
2486
except socket.error as error:
2487
if error.errno == errno.EPERM:
2488
logger.error("No permission to bind to"
2489
" interface %s", self.interface)
2490
elif error.errno == errno.ENOPROTOOPT:
2491
logger.error("SO_BINDTODEVICE not available;"
2492
" cannot bind to interface %s",
2493
self.interface)
2494
elif error.errno == errno.ENODEV:
2495
logger.error("Interface %s does not exist,"
2496
" cannot bind", self.interface)
2497
else:
2498
raise
1993
2499
# Only bind(2) the socket if we really need to.
1994
2500
if self.server_address[0] or self.server_address[1]:
1995
2501
if not self.server_address[0]:
1996
2502
if self.address_family == socket.AF_INET6:
1997
any_address = "::" # in6addr_any
2503
any_address = "::" # in6addr_any
1998
2504
else:
1999
any_address = "0.0.0.0" # INADDR_ANY
2505
any_address = "0.0.0.0" # INADDR_ANY
2000
2506
self.server_address = (any_address,
2001
2507
self.server_address[1])
2002
2508
elif not self.server_address[1]:
2003
self.server_address = (self.server_address[0],
2004
0)
2509
self.server_address = (self.server_address[0], 0)
2005
2510
# if self.interface:
2006
2511
# self.server_address = (self.server_address[0],
2007
2512
# 0, # port
2013
2518
2014
2519
class MandosServer(IPv6_TCPServer):
2015
2520
"""Mandos server.
2016
2521
2017
2522
Attributes:
2018
2523
clients: set of Client objects
2019
2524
gnutls_priority GnuTLS priority string
2020
2525
use_dbus: Boolean; to emit D-Bus signals or not
2021
2022
Assumes a gobject.MainLoop event loop.
2526
2527
Assumes a GLib.MainLoop event loop.
2023
2528
"""
2529
2024
2530
def __init__(self, server_address, RequestHandlerClass,
2025
interface=None, use_ipv6=True, clients=None,
2026
gnutls_priority=None, use_dbus=True, socketfd=None):
2531
interface=None,
2532
use_ipv6=True,
2533
clients=None,
2534
gnutls_priority=None,
2535
use_dbus=True,
2536
socketfd=None):
2027
2537
self.enabled = False
2028
2538
self.clients = clients
2029
2539
if self.clients is None:
2032
2542
self.gnutls_priority = gnutls_priority
2033
2543
IPv6_TCPServer.__init__(self, server_address,
2034
2544
RequestHandlerClass,
2035
interface = interface,
2036
use_ipv6 = use_ipv6,
2037
socketfd = socketfd)
2545
interface=interface,
2546
use_ipv6=use_ipv6,
2547
socketfd=socketfd)
2548
2038
2549
def server_activate(self):
2039
2550
if self.enabled:
2040
2551
return socketserver.TCPServer.server_activate(self)
2041
2552
2042
2553
def enable(self):
2043
2554
self.enabled = True
2044
2555
2045
2556
def add_pipe(self, parent_pipe, proc):
2046
2557
# Call "handle_ipc" for both data and EOF events
2047
gobject.io_add_watch(parent_pipe.fileno(),
2048
gobject.IO_IN | gobject.IO_HUP,
2049
functools.partial(self.handle_ipc,
2050
parent_pipe =
2051
parent_pipe,
2052
proc = proc))
2053
2054
def handle_ipc(self, source, condition, parent_pipe=None,
2055
proc = None, client_object=None):
2558
GLib.io_add_watch(
2559
parent_pipe.fileno(),
2560
GLib.IO_IN | GLib.IO_HUP,
2561
functools.partial(self.handle_ipc,
2562
parent_pipe=parent_pipe,
2563
proc=proc))
2564
2565
def handle_ipc(self, source, condition,
2566
parent_pipe=None,
2567
proc=None,
2568
client_object=None):
2056
2569
# error, or the other end of multiprocessing.Pipe has closed
2057
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2570
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2058
2571
# Wait for other process to exit
2059
2572
proc.join()
2060
2573
return False
2061
2574
2062
2575
# Read a request from the child
2063
2576
request = parent_pipe.recv()
2064
2577
command = request[0]
2065
2578
2066
2579
if command == 'init':
2067
2580
fpr = request[1]
2068
2581
address = request[2]
2069
2070
for c in self.clients.itervalues():
2582
2583
for c in self.clients.values():
2071
2584
if c.fingerprint == fpr:
2072
2585
client = c
2073
2586
break
2080
2593
address[0])
2081
2594
parent_pipe.send(False)
2082
2595
return False
2083
2084
gobject.io_add_watch(parent_pipe.fileno(),
2085
gobject.IO_IN | gobject.IO_HUP,
2086
functools.partial(self.handle_ipc,
2087
parent_pipe =
2088
parent_pipe,
2089
proc = proc,
2090
client_object =
2091
client))
2596
2597
GLib.io_add_watch(
2598
parent_pipe.fileno(),
2599
GLib.IO_IN | GLib.IO_HUP,
2600
functools.partial(self.handle_ipc,
2601
parent_pipe=parent_pipe,
2602
proc=proc,
2603
client_object=client))
2092
2604
parent_pipe.send(True)
2093
2605
# remove the old hook in favor of the new above hook on
2094
2606
# same fileno
2097
2609
funcname = request[1]
2098
2610
args = request[2]
2099
2611
kwargs = request[3]
2100
2612
2101
2613
parent_pipe.send(('data', getattr(client_object,
2102
2614
funcname)(*args,
2103
**kwargs)))
2104
2615
**kwargs)))
2616
2105
2617
if command == 'getattr':
2106
2618
attrname = request[1]
2107
if callable(client_object.__getattribute__(attrname)):
2108
parent_pipe.send(('function',))
2619
if isinstance(client_object.__getattribute__(attrname),
2620
collections.Callable):
2621
parent_pipe.send(('function', ))
2109
2622
else:
2110
parent_pipe.send(('data', client_object
2111
.__getattribute__(attrname)))
2112
2623
parent_pipe.send((
2624
'data', client_object.__getattribute__(attrname)))
2625
2113
2626
if command == 'setattr':
2114
2627
attrname = request[1]
2115
2628
value = request[2]
2116
2629
setattr(client_object, attrname, value)
2117
2630
2118
2631
return True
2119
2632
2120
2633
2121
2634
def rfc3339_duration_to_delta(duration):
2122
2635
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2123
2636
2124
2637
>>> rfc3339_duration_to_delta("P7D")
2125
2638
datetime.timedelta(7)
2126
2639
>>> rfc3339_duration_to_delta("PT60S")
2136
2649
>>> rfc3339_duration_to_delta("P1DT3M20S")
2137
2650
datetime.timedelta(1, 200)
2138
2651
"""
2139
2652
2140
2653
# Parsing an RFC 3339 duration with regular expressions is not
2141
2654
# possible - there would have to be multiple places for the same
2142
2655
# values, like seconds. The current code, while more esoteric, is
2143
2656
# cleaner without depending on a parsing library. If Python had a
2144
2657
# built-in library for parsing we would use it, but we'd like to
2145
2658
# avoid excessive use of external libraries.
2146
2659
2147
2660
# New type for defining tokens, syntax, and semantics all-in-one
2148
Token = collections.namedtuple("Token",
2149
("regexp", # To match token; if
2150
# "value" is not None,
2151
# must have a "group"
2152
# containing digits
2153
"value", # datetime.timedelta or
2154
# None
2155
"followers")) # Tokens valid after
2156
# this token
2661
Token = collections.namedtuple("Token", (
2662
"regexp", # To match token; if "value" is not None, must have
2663
# a "group" containing digits
2664
"value", # datetime.timedelta or None
2665
"followers")) # Tokens valid after this token
2157
2666
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2158
2667
# the "duration" ABNF definition in RFC 3339, Appendix A.
2159
2668
token_end = Token(re.compile(r"$"), None, frozenset())
2160
2669
token_second = Token(re.compile(r"(\d+)S"),
2161
2670
datetime.timedelta(seconds=1),
2162
frozenset((token_end,)))
2671
frozenset((token_end, )))
2163
2672
token_minute = Token(re.compile(r"(\d+)M"),
2164
2673
datetime.timedelta(minutes=1),
2165
2674
frozenset((token_second, token_end)))
2181
2690
frozenset((token_month, token_end)))
2182
2691
token_week = Token(re.compile(r"(\d+)W"),
2183
2692
datetime.timedelta(weeks=1),
2184
frozenset((token_end,)))
2693
frozenset((token_end, )))
2185
2694
token_duration = Token(re.compile(r"P"), None,
2186
2695
frozenset((token_year, token_month,
2187
2696
token_day, token_time,
2188
2697
token_week)))
2189
# Define starting values
2190
value = datetime.timedelta() # Value so far
2698
# Define starting values:
2699
# Value so far
2700
value = datetime.timedelta()
2191
2701
found_token = None
2192
followers = frozenset((token_duration,)) # Following valid tokens
2193
s = duration # String left to parse
2702
# Following valid tokens
2703
followers = frozenset((token_duration, ))
2704
# String left to parse
2705
s = duration
2194
2706
# Loop until end token is found
2195
2707
while found_token is not token_end:
2196
2708
# Search for any currently valid tokens
2212
2724
break
2213
2725
else:
2214
2726
# No currently valid tokens were found
2215
raise ValueError("Invalid RFC 3339 duration")
2727
raise ValueError("Invalid RFC 3339 duration: {!r}"
2728
.format(duration))
2216
2729
# End token found
2217
2730
return value
2218
2731
2219
2732
2220
2733
def string_to_delta(interval):
2221
2734
"""Parse a string and return a datetime.timedelta
2222
2735
2223
2736
>>> string_to_delta('7d')
2224
2737
datetime.timedelta(7)
2225
2738
>>> string_to_delta('60s')
2233
2746
>>> string_to_delta('5m 30s')
2234
2747
datetime.timedelta(0, 330)
2235
2748
"""
2236
2749
2237
2750
try:
2238
2751
return rfc3339_duration_to_delta(interval)
2239
2752
except ValueError:
2240
2753
pass
2241
2754
2242
2755
timevalue = datetime.timedelta(0)
2243
2756
for s in interval.split():
2244
2757
try:
2255
2768
elif suffix == "w":
2256
2769
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2257
2770
else:
2258
raise ValueError("Unknown suffix {!r}"
2259
.format(suffix))
2771
raise ValueError("Unknown suffix {!r}".format(suffix))
2260
2772
except IndexError as e:
2261
2773
raise ValueError(*(e.args))
2262
2774
timevalue += delta
2263
2775
return timevalue
2264
2776
2265
2777
2266
def daemon(nochdir = False, noclose = False):
2778
def daemon(nochdir=False, noclose=False):
2267
2779
"""See daemon(3). Standard BSD Unix function.
2268
2780
2269
2781
This should really exist as os.daemon, but it doesn't (yet)."""
2270
2782
if os.fork():
2271
2783
sys.exit()
2278
2790
# Close all standard open file descriptors
2279
2791
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2280
2792
if not stat.S_ISCHR(os.fstat(null).st_mode):
2281
raise OSError(errno.ENODEV, "{} not a character device"
2793
raise OSError(errno.ENODEV,
2794
"{} not a character device"
2282
2795
.format(os.devnull))
2283
2796
os.dup2(null, sys.stdin.fileno())
2284
2797
os.dup2(null, sys.stdout.fileno())
2288
2801
2289
2802
2290
2803
def main():
2291
2804
2292
2805
##################################################################
2293
2806
# Parsing of options, both command line and config file
2294
2807
2295
2808
parser = argparse.ArgumentParser()
2296
2809
parser.add_argument("-v", "--version", action="version",
2297
version = "%(prog)s {}".format(version),
2810
version="%(prog)s {}".format(version),
2298
2811
help="show version number and exit")
2299
2812
parser.add_argument("-i", "--interface", metavar="IF",
2300
2813
help="Bind to interface IF")
2336
2849
parser.add_argument("--no-zeroconf", action="store_false",
2337
2850
dest="zeroconf", help="Do not use Zeroconf",
2338
2851
default=None)
2339
2852
2340
2853
options = parser.parse_args()
2341
2854
2342
2855
if options.check:
2343
2856
import doctest
2344
2857
fail_count, test_count = doctest.testmod()
2345
2858
sys.exit(os.EX_OK if fail_count == 0 else 1)
2346
2859
2347
2860
# Default values for config file for server-global settings
2348
server_defaults = { "interface": "",
2349
"address": "",
2350
"port": "",
2351
"debug": "False",
2352
"priority":
2353
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2354
"servicename": "Mandos",
2355
"use_dbus": "True",
2356
"use_ipv6": "True",
2357
"debuglevel": "",
2358
"restore": "True",
2359
"socket": "",
2360
"statedir": "/var/lib/mandos",
2361
"foreground": "False",
2362
"zeroconf": "True",
2363
}
2364
2861
server_defaults = {"interface": "",
2862
"address": "",
2863
"port": "",
2864
"debug": "False",
2865
"priority":
2866
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2867
":+SIGN-DSA-SHA256",
2868
"servicename": "Mandos",
2869
"use_dbus": "True",
2870
"use_ipv6": "True",
2871
"debuglevel": "",
2872
"restore": "True",
2873
"socket": "",
2874
"statedir": "/var/lib/mandos",
2875
"foreground": "False",
2876
"zeroconf": "True",
2877
}
2878
2365
2879
# Parse config file for server-global settings
2366
2880
server_config = configparser.SafeConfigParser(server_defaults)
2367
2881
del server_defaults
2368
server_config.read(os.path.join(options.configdir,
2369
"mandos.conf"))
2882
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2370
2883
# Convert the SafeConfigParser object to a dict
2371
2884
server_settings = server_config.defaults()
2372
2885
# Use the appropriate methods on the non-string config options
2386
2899
server_settings["socket"] = os.dup(server_settings
2387
2900
["socket"])
2388
2901
del server_config
2389
2902
2390
2903
# Override the settings from the config file with command line
2391
2904
# options, if set.
2392
2905
for option in ("interface", "address", "port", "debug",
2393
"priority", "servicename", "configdir",
2394
"use_dbus", "use_ipv6", "debuglevel", "restore",
2395
"statedir", "socket", "foreground", "zeroconf"):
2906
"priority", "servicename", "configdir", "use_dbus",
2907
"use_ipv6", "debuglevel", "restore", "statedir",
2908
"socket", "foreground", "zeroconf"):
2396
2909
value = getattr(options, option)
2397
2910
if value is not None:
2398
2911
server_settings[option] = value
2410
2923
if server_settings["debug"]:
2411
2924
server_settings["foreground"] = True
2412
2925
# Now we have our good server settings in "server_settings"
2413
2926
2414
2927
##################################################################
2415
2416
if (not server_settings["zeroconf"] and
2417
not (server_settings["port"]
2418
or server_settings["socket"] != "")):
2419
parser.error("Needs port or socket to work without"
2420
" Zeroconf")
2421
2928
2929
if (not server_settings["zeroconf"]
2930
and not (server_settings["port"]
2931
or server_settings["socket"] != "")):
2932
parser.error("Needs port or socket to work without Zeroconf")
2933
2422
2934
# For convenience
2423
2935
debug = server_settings["debug"]
2424
2936
debuglevel = server_settings["debuglevel"]
2428
2940
stored_state_file)
2429
2941
foreground = server_settings["foreground"]
2430
2942
zeroconf = server_settings["zeroconf"]
2431
2943
2432
2944
if debug:
2433
2945
initlogger(debug, logging.DEBUG)
2434
2946
else:
2437
2949
else:
2438
2950
level = getattr(logging, debuglevel.upper())
2439
2951
initlogger(debug, level)
2440
2952
2441
2953
if server_settings["servicename"] != "Mandos":
2442
syslogger.setFormatter(logging.Formatter
2443
('Mandos ({}) [%(process)d]:'
2444
' %(levelname)s: %(message)s'
2445
.format(server_settings
2446
["servicename"])))
2447
2954
syslogger.setFormatter(
2955
logging.Formatter('Mandos ({}) [%(process)d]:'
2956
' %(levelname)s: %(message)s'.format(
2957
server_settings["servicename"])))
2958
2448
2959
# Parse config file with clients
2449
2960
client_config = configparser.SafeConfigParser(Client
2450
2961
.client_defaults)
2451
2962
client_config.read(os.path.join(server_settings["configdir"],
2452
2963
"clients.conf"))
2453
2964
2454
2965
global mandos_dbus_service
2455
2966
mandos_dbus_service = None
2456
2967
2457
2968
socketfd = None
2458
2969
if server_settings["socket"] != "":
2459
2970
socketfd = server_settings["socket"]
2460
tcp_server = MandosServer((server_settings["address"],
2461
server_settings["port"]),
2462
ClientHandler,
2463
interface=(server_settings["interface"]
2464
or None),
2465
use_ipv6=use_ipv6,
2466
gnutls_priority=
2467
server_settings["priority"],
2468
use_dbus=use_dbus,
2469
socketfd=socketfd)
2971
tcp_server = MandosServer(
2972
(server_settings["address"], server_settings["port"]),
2973
ClientHandler,
2974
interface=(server_settings["interface"] or None),
2975
use_ipv6=use_ipv6,
2976
gnutls_priority=server_settings["priority"],
2977
use_dbus=use_dbus,
2978
socketfd=socketfd)
2470
2979
if not foreground:
2471
2980
pidfilename = "/run/mandos.pid"
2472
2981
if not os.path.isdir("/run/."):
2473
2982
pidfilename = "/var/run/mandos.pid"
2474
2983
pidfile = None
2475
2984
try:
2476
pidfile = open(pidfilename, "w")
2985
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2477
2986
except IOError as e:
2478
2987
logger.error("Could not open file %r", pidfilename,
2479
2988
exc_info=e)
2480
2481
for name in ("_mandos", "mandos", "nobody"):
2989
2990
for name, group in (("_mandos", "_mandos"),
2991
("mandos", "mandos"),
2992
("nobody", "nogroup")):
2482
2993
try:
2483
2994
uid = pwd.getpwnam(name).pw_uid
2484
gid = pwd.getpwnam(name).pw_gid
2995
gid = pwd.getpwnam(group).pw_gid
2485
2996
break
2486
2997
except KeyError:
2487
2998
continue
2491
3002
try:
2492
3003
os.setgid(gid)
2493
3004
os.setuid(uid)
3005
if debug:
3006
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3007
gid))
2494
3008
except OSError as error:
3009
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3010
.format(uid, gid, os.strerror(error.errno)))
2495
3011
if error.errno != errno.EPERM:
2496
3012
raise
2497
3013
2498
3014
if debug:
2499
3015
# Enable all possible GnuTLS debugging
2500
3016
2501
3017
# "Use a log level over 10 to enable all debugging options."
2502
3018
# - GnuTLS manual
2503
gnutls.library.functions.gnutls_global_set_log_level(11)
2504
2505
@gnutls.library.types.gnutls_log_func
3019
gnutls.global_set_log_level(11)
3020
3021
@gnutls.log_func
2506
3022
def debug_gnutls(level, string):
2507
3023
logger.debug("GnuTLS: %s", string[:-1])
2508
2509
(gnutls.library.functions
2510
.gnutls_global_set_log_function(debug_gnutls))
2511
3024
3025
gnutls.global_set_log_function(debug_gnutls)
3026
2512
3027
# Redirect stdin so all checkers get /dev/null
2513
3028
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2514
3029
os.dup2(null, sys.stdin.fileno())
2515
3030
if null > 2:
2516
3031
os.close(null)
2517
3032
2518
3033
# Need to fork before connecting to D-Bus
2519
3034
if not foreground:
2520
3035
# Close all input and output, do double fork, etc.
2521
3036
daemon()
2522
2523
# multiprocessing will use threads, so before we use gobject we
2524
# need to inform gobject that threads will be used.
2525
gobject.threads_init()
2526
3037
3038
# multiprocessing will use threads, so before we use GLib we need
3039
# to inform GLib that threads will be used.
3040
GLib.threads_init()
3041
2527
3042
global main_loop
2528
3043
# From the Avahi example code
2529
3044
DBusGMainLoop(set_as_default=True)
2530
main_loop = gobject.MainLoop()
3045
main_loop = GLib.MainLoop()
2531
3046
bus = dbus.SystemBus()
2532
3047
# End of Avahi example code
2533
3048
if use_dbus:
2534
3049
try:
2535
3050
bus_name = dbus.service.BusName("se.recompile.Mandos",
2536
bus, do_not_queue=True)
2537
old_bus_name = (dbus.service.BusName
2538
("se.bsnet.fukt.Mandos", bus,
2539
do_not_queue=True))
2540
except dbus.exceptions.NameExistsException as e:
3051
bus,
3052
do_not_queue=True)
3053
old_bus_name = dbus.service.BusName(
3054
"se.bsnet.fukt.Mandos", bus,
3055
do_not_queue=True)
3056
except dbus.exceptions.DBusException as e:
2541
3057
logger.error("Disabling D-Bus:", exc_info=e)
2542
3058
use_dbus = False
2543
3059
server_settings["use_dbus"] = False
2544
3060
tcp_server.use_dbus = False
2545
3061
if zeroconf:
2546
3062
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2547
service = AvahiServiceToSyslog(name =
2548
server_settings["servicename"],
2549
servicetype = "_mandos._tcp",
2550
protocol = protocol, bus = bus)
3063
service = AvahiServiceToSyslog(
3064
name=server_settings["servicename"],
3065
servicetype="_mandos._tcp",
3066
protocol=protocol,
3067
bus=bus)
2551
3068
if server_settings["interface"]:
2552
service.interface = (if_nametoindex
2553
(server_settings["interface"]
2554
.encode("utf-8")))
2555
3069
service.interface = if_nametoindex(
3070
server_settings["interface"].encode("utf-8"))
3071
2556
3072
global multiprocessing_manager
2557
3073
multiprocessing_manager = multiprocessing.Manager()
2558
3074
2559
3075
client_class = Client
2560
3076
if use_dbus:
2561
client_class = functools.partial(ClientDBus, bus = bus)
2562
3077
client_class = functools.partial(ClientDBus, bus=bus)
3078
2563
3079
client_settings = Client.config_parser(client_config)
2564
3080
old_client_settings = {}
2565
3081
clients_data = {}
2566
3082
2567
3083
# This is used to redirect stdout and stderr for checker processes
2568
3084
global wnull
2569
wnull = open(os.devnull, "w") # A writable /dev/null
3085
wnull = open(os.devnull, "w") # A writable /dev/null
2570
3086
# Only used if server is running in foreground but not in debug
2571
3087
# mode
2572
3088
if debug or not foreground:
2573
3089
wnull.close()
2574
3090
2575
3091
# Get client data and settings from last running state.
2576
3092
if server_settings["restore"]:
2577
3093
try:
2578
3094
with open(stored_state_path, "rb") as stored_state:
2579
clients_data, old_client_settings = (pickle.load
2580
(stored_state))
3095
if sys.version_info.major == 2:
3096
clients_data, old_client_settings = pickle.load(
3097
stored_state)
3098
else:
3099
bytes_clients_data, bytes_old_client_settings = (
3100
pickle.load(stored_state, encoding="bytes"))
3101
# Fix bytes to strings
3102
# clients_data
3103
# .keys()
3104
clients_data = {(key.decode("utf-8")
3105
if isinstance(key, bytes)
3106
else key): value
3107
for key, value in
3108
bytes_clients_data.items()}
3109
del bytes_clients_data
3110
for key in clients_data:
3111
value = {(k.decode("utf-8")
3112
if isinstance(k, bytes) else k): v
3113
for k, v in
3114
clients_data[key].items()}
3115
clients_data[key] = value
3116
# .client_structure
3117
value["client_structure"] = [
3118
(s.decode("utf-8")
3119
if isinstance(s, bytes)
3120
else s) for s in
3121
value["client_structure"]]
3122
# .name & .host
3123
for k in ("name", "host"):
3124
if isinstance(value[k], bytes):
3125
value[k] = value[k].decode("utf-8")
3126
# old_client_settings
3127
# .keys()
3128
old_client_settings = {
3129
(key.decode("utf-8")
3130
if isinstance(key, bytes)
3131
else key): value
3132
for key, value in
3133
bytes_old_client_settings.items()}
3134
del bytes_old_client_settings
3135
# .host
3136
for value in old_client_settings.values():
3137
if isinstance(value["host"], bytes):
3138
value["host"] = (value["host"]
3139
.decode("utf-8"))
2581
3140
os.remove(stored_state_path)
2582
3141
except IOError as e:
2583
3142
if e.errno == errno.ENOENT:
2584
logger.warning("Could not load persistent state: {}"
2585
.format(os.strerror(e.errno)))
3143
logger.warning("Could not load persistent state:"
3144
" {}".format(os.strerror(e.errno)))
2586
3145
else:
2587
3146
logger.critical("Could not load persistent state:",
2588
3147
exc_info=e)
2589
3148
raise
2590
3149
except EOFError as e:
2591
3150
logger.warning("Could not load persistent state: "
2592
"EOFError:", exc_info=e)
2593
3151
"EOFError:",
3152
exc_info=e)
3153
2594
3154
with PGPEngine() as pgp:
2595
3155
for client_name, client in clients_data.items():
2596
3156
# Skip removed clients
2597
3157
if client_name not in client_settings:
2598
3158
continue
2599
3159
2600
3160
# Decide which value to use after restoring saved state.
2601
3161
# We have three different values: Old config file,
2602
3162
# new config file, and saved state.
2607
3167
# For each value in new config, check if it
2608
3168
# differs from the old config value (Except for
2609
3169
# the "secret" attribute)
2610
if (name != "secret" and
2611
value != old_client_settings[client_name]
2612
[name]):
3170
if (name != "secret"
3171
and (value !=
3172
old_client_settings[client_name][name])):
2613
3173
client[name] = value
2614
3174
except KeyError:
2615
3175
pass
2616
3176
2617
3177
# Clients who has passed its expire date can still be
2618
# enabled if its last checker was successful. Clients
3178
# enabled if its last checker was successful. A Client
2619
3179
# whose checker succeeded before we stored its state is
2620
3180
# assumed to have successfully run all checkers during
2621
3181
# downtime.
2624
3184
if not client["last_checked_ok"]:
2625
3185
logger.warning(
2626
3186
"disabling client {} - Client never "
2627
"performed a successful checker"
2628
.format(client_name))
3187
"performed a successful checker".format(
3188
client_name))
2629
3189
client["enabled"] = False
2630
3190
elif client["last_checker_status"] != 0:
2631
3191
logger.warning(
2632
3192
"disabling client {} - Client last"
2633
" checker failed with error code {}"
2634
.format(client_name,
2635
client["last_checker_status"]))
3193
" checker failed with error code"
3194
" {}".format(
3195
client_name,
3196
client["last_checker_status"]))
2636
3197
client["enabled"] = False
2637
3198
else:
2638
client["expires"] = (datetime.datetime
2639
.utcnow()
2640
+ client["timeout"])
3199
client["expires"] = (
3200
datetime.datetime.utcnow()
3201
+ client["timeout"])
2641
3202
logger.debug("Last checker succeeded,"
2642
" keeping {} enabled"
2643
.format(client_name))
3203
" keeping {} enabled".format(
3204
client_name))
2644
3205
try:
2645
client["secret"] = (
2646
pgp.decrypt(client["encrypted_secret"],
2647
client_settings[client_name]
2648
["secret"]))
3206
client["secret"] = pgp.decrypt(
3207
client["encrypted_secret"],
3208
client_settings[client_name]["secret"])
2649
3209
except PGPError:
2650
3210
# If decryption fails, we use secret from new settings
2651
logger.debug("Failed to decrypt {} old secret"
2652
.format(client_name))
2653
client["secret"] = (
2654
client_settings[client_name]["secret"])
2655
3211
logger.debug("Failed to decrypt {} old secret".format(
3212
client_name))
3213
client["secret"] = (client_settings[client_name]
3214
["secret"])
3215
2656
3216
# Add/remove clients based on new changes made to config
2657
3217
for client_name in (set(old_client_settings)
2658
3218
- set(client_settings)):
2660
3220
for client_name in (set(client_settings)
2661
3221
- set(old_client_settings)):
2662
3222
clients_data[client_name] = client_settings[client_name]
2663
3223
2664
3224
# Create all client objects
2665
3225
for client_name, client in clients_data.items():
2666
3226
tcp_server.clients[client_name] = client_class(
2667
name = client_name, settings = client,
2668
server_settings = server_settings)
2669
3227
name=client_name,
3228
settings=client,
3229
server_settings=server_settings)
3230
2670
3231
if not tcp_server.clients:
2671
3232
logger.warning("No clients defined")
2672
3233
2673
3234
if not foreground:
2674
3235
if pidfile is not None:
3236
pid = os.getpid()
2675
3237
try:
2676
3238
with pidfile:
2677
pid = os.getpid()
2678
pidfile.write("{}\n".format(pid).encode("utf-8"))
3239
print(pid, file=pidfile)
2679
3240
except IOError:
2680
3241
logger.error("Could not write to file %r with PID %d",
2681
3242
pidfilename, pid)
2682
3243
del pidfile
2683
3244
del pidfilename
2684
2685
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2686
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2687
3245
3246
for termsig in (signal.SIGHUP, signal.SIGTERM):
3247
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3248
lambda: main_loop.quit() and False)
3249
2688
3250
if use_dbus:
2689
@alternate_dbus_interfaces({"se.recompile.Mandos":
2690
"se.bsnet.fukt.Mandos"})
2691
class MandosDBusService(DBusObjectWithProperties):
3251
3252
@alternate_dbus_interfaces(
3253
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3254
class MandosDBusService(DBusObjectWithObjectManager):
2692
3255
"""A D-Bus proxy object"""
3256
2693
3257
def __init__(self):
2694
3258
dbus.service.Object.__init__(self, bus, "/")
3259
2695
3260
_interface = "se.recompile.Mandos"
2696
2697
@dbus_interface_annotations(_interface)
2698
def _foo(self):
2699
return { "org.freedesktop.DBus.Property"
2700
".EmitsChangedSignal":
2701
"false"}
2702
3261
2703
3262
@dbus.service.signal(_interface, signature="o")
2704
3263
def ClientAdded(self, objpath):
2705
3264
"D-Bus signal"
2706
3265
pass
2707
3266
2708
3267
@dbus.service.signal(_interface, signature="ss")
2709
3268
def ClientNotFound(self, fingerprint, address):
2710
3269
"D-Bus signal"
2711
3270
pass
2712
3271
3272
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3273
"true"})
2713
3274
@dbus.service.signal(_interface, signature="os")
2714
3275
def ClientRemoved(self, objpath, name):
2715
3276
"D-Bus signal"
2716
3277
pass
2717
3278
3279
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3280
"true"})
2718
3281
@dbus.service.method(_interface, out_signature="ao")
2719
3282
def GetAllClients(self):
2720
3283
"D-Bus method"
2721
return dbus.Array(c.dbus_object_path
2722
for c in
2723
tcp_server.clients.itervalues())
2724
3284
return dbus.Array(c.dbus_object_path for c in
3285
tcp_server.clients.values())
3286
3287
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3288
"true"})
2725
3289
@dbus.service.method(_interface,
2726
3290
out_signature="a{oa{sv}}")
2727
3291
def GetAllClientsWithProperties(self):
2728
3292
"D-Bus method"
2729
3293
return dbus.Dictionary(
2730
{ c.dbus_object_path: c.GetAll("")
2731
for c in tcp_server.clients.itervalues() },
3294
{c.dbus_object_path: c.GetAll(
3295
"se.recompile.Mandos.Client")
3296
for c in tcp_server.clients.values()},
2732
3297
signature="oa{sv}")
2733
3298
2734
3299
@dbus.service.method(_interface, in_signature="o")
2735
3300
def RemoveClient(self, object_path):
2736
3301
"D-Bus method"
2737
for c in tcp_server.clients.itervalues():
3302
for c in tcp_server.clients.values():
2738
3303
if c.dbus_object_path == object_path:
2739
3304
del tcp_server.clients[c.name]
2740
3305
c.remove_from_connection()
2741
# Don't signal anything except ClientRemoved
3306
# Don't signal the disabling
2742
3307
c.disable(quiet=True)
2743
# Emit D-Bus signal
2744
self.ClientRemoved(object_path, c.name)
3308
# Emit D-Bus signal for removal
3309
self.client_removed_signal(c)
2745
3310
return
2746
3311
raise KeyError(object_path)
2747
3312
2748
3313
del _interface
2749
3314
3315
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3316
out_signature="a{oa{sa{sv}}}")
3317
def GetManagedObjects(self):
3318
"""D-Bus method"""
3319
return dbus.Dictionary(
3320
{client.dbus_object_path:
3321
dbus.Dictionary(
3322
{interface: client.GetAll(interface)
3323
for interface in
3324
client._get_all_interface_names()})
3325
for client in tcp_server.clients.values()})
3326
3327
def client_added_signal(self, client):
3328
"""Send the new standard signal and the old signal"""
3329
if use_dbus:
3330
# New standard signal
3331
self.InterfacesAdded(
3332
client.dbus_object_path,
3333
dbus.Dictionary(
3334
{interface: client.GetAll(interface)
3335
for interface in
3336
client._get_all_interface_names()}))
3337
# Old signal
3338
self.ClientAdded(client.dbus_object_path)
3339
3340
def client_removed_signal(self, client):
3341
"""Send the new standard signal and the old signal"""
3342
if use_dbus:
3343
# New standard signal
3344
self.InterfacesRemoved(
3345
client.dbus_object_path,
3346
client._get_all_interface_names())
3347
# Old signal
3348
self.ClientRemoved(client.dbus_object_path,
3349
client.name)
3350
2750
3351
mandos_dbus_service = MandosDBusService()
2751
3352
3353
# Save modules to variables to exempt the modules from being
3354
# unloaded before the function registered with atexit() is run.
3355
mp = multiprocessing
3356
wn = wnull
3357
2752
3358
def cleanup():
2753
3359
"Cleanup function; run on exit"
2754
3360
if zeroconf:
2755
3361
service.cleanup()
2756
2757
multiprocessing.active_children()
2758
wnull.close()
3362
3363
mp.active_children()
3364
wn.close()
2759
3365
if not (tcp_server.clients or client_settings):
2760
3366
return
2761
3367
2762
3368
# Store client before exiting. Secrets are encrypted with key
2763
3369
# based on what config file has. If config file is
2764
3370
# removed/edited, old secret will thus be unrecovable.
2765
3371
clients = {}
2766
3372
with PGPEngine() as pgp:
2767
for client in tcp_server.clients.itervalues():
3373
for client in tcp_server.clients.values():
2768
3374
key = client_settings[client.name]["secret"]
2769
3375
client.encrypted_secret = pgp.encrypt(client.secret,
2770
3376
key)
2771
3377
client_dict = {}
2772
3378
2773
3379
# A list of attributes that can not be pickled
2774
3380
# + secret.
2775
exclude = { "bus", "changedstate", "secret",
2776
"checker", "server_settings" }
2777
for name, typ in (inspect.getmembers
2778
(dbus.service.Object)):
3381
exclude = {"bus", "changedstate", "secret",
3382
"checker", "server_settings"}
3383
for name, typ in inspect.getmembers(dbus.service
3384
.Object):
2779
3385
exclude.add(name)
2780
3386
2781
3387
client_dict["encrypted_secret"] = (client
2782
3388
.encrypted_secret)
2783
3389
for attr in client.client_structure:
2784
3390
if attr not in exclude:
2785
3391
client_dict[attr] = getattr(client, attr)
2786
3392
2787
3393
clients[client.name] = client_dict
2788
3394
del client_settings[client.name]["secret"]
2789
3395
2790
3396
try:
2791
with (tempfile.NamedTemporaryFile
2792
(mode='wb', suffix=".pickle", prefix='clients-',
2793
dir=os.path.dirname(stored_state_path),
2794
delete=False)) as stored_state:
2795
pickle.dump((clients, client_settings), stored_state)
2796
tempname=stored_state.name
3397
with tempfile.NamedTemporaryFile(
3398
mode='wb',
3399
suffix=".pickle",
3400
prefix='clients-',
3401
dir=os.path.dirname(stored_state_path),
3402
delete=False) as stored_state:
3403
pickle.dump((clients, client_settings), stored_state,
3404
protocol=2)
3405
tempname = stored_state.name
2797
3406
os.rename(tempname, stored_state_path)
2798
3407
except (IOError, OSError) as e:
2799
3408
if not debug:
2808
3417
logger.warning("Could not save persistent state:",
2809
3418
exc_info=e)
2810
3419
raise
2811
3420
2812
3421
# Delete all clients, and settings from config
2813
3422
while tcp_server.clients:
2814
3423
name, client = tcp_server.clients.popitem()
2815
3424
if use_dbus:
2816
3425
client.remove_from_connection()
2817
# Don't signal anything except ClientRemoved
3426
# Don't signal the disabling
2818
3427
client.disable(quiet=True)
3428
# Emit D-Bus signal for removal
2819
3429
if use_dbus:
2820
# Emit D-Bus signal
2821
mandos_dbus_service.ClientRemoved(client
2822
.dbus_object_path,
2823
client.name)
3430
mandos_dbus_service.client_removed_signal(client)
2824
3431
client_settings.clear()
2825
3432
2826
3433
atexit.register(cleanup)
2827
2828
for client in tcp_server.clients.itervalues():
3434
3435
for client in tcp_server.clients.values():
2829
3436
if use_dbus:
2830
# Emit D-Bus signal
2831
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3437
# Emit D-Bus signal for adding
3438
mandos_dbus_service.client_added_signal(client)
2832
3439
# Need to initiate checking of clients
2833
3440
if client.enabled:
2834
3441
client.init_checker()
2835
3442
2836
3443
tcp_server.enable()
2837
3444
tcp_server.server_activate()
2838
3445
2839
3446
# Find out what port we got
2840
3447
if zeroconf:
2841
3448
service.port = tcp_server.socket.getsockname()[1]
2846
3453
else: # IPv4
2847
3454
logger.info("Now listening on address %r, port %d",
2848
3455
*tcp_server.socket.getsockname())
2849
2850
#service.interface = tcp_server.socket.getsockname()[3]
2851
3456
3457
# service.interface = tcp_server.socket.getsockname()[3]
3458
2852
3459
try:
2853
3460
if zeroconf:
2854
3461
# From the Avahi example code
2859
3466
cleanup()
2860
3467
sys.exit(1)
2861
3468
# End of Avahi example code
2862
2863
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2864
lambda *args, **kwargs:
2865
(tcp_server.handle_request
2866
(*args[2:], **kwargs) or True))
2867
3469
3470
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3471
lambda *args, **kwargs:
3472
(tcp_server.handle_request
3473
(*args[2:], **kwargs) or True))
3474
2868
3475
logger.debug("Starting main loop")
2869
3476
main_loop.run()
2870
3477
except AvahiError as error:
2879
3486
# Must run before the D-Bus bus name gets deregistered
2880
3487
cleanup()
2881
3488
3489
2882
3490
if __name__ == '__main__':
2883
3491
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0