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- Committer: Teddy Hogeborn
- Date: 2011-10-05 16:56:06 UTC
- mto: (505.2.5 mandos-client-network-hooks)
- mto: This revision was merged to the branch mainline in revision 509.
- Revision ID: teddy@recompile.se-20111005165606-4ukrgml2ctg8ky1q
Removed superflous white space.
* Makefile: - '' -
* initramfs-tools-hook: - '' -
* mandos: - '' -
* plugin-runner.xml: - '' -
* Makefile: - '' -
* initramfs-tools-hook: - '' -
* mandos: - '' -
* plugin-runner.xml: - '' -
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
66
82
67
import dbus
83
68
import dbus.service
84
import gi
85
from gi.repository import GLib
69
import gobject
70
import avahi
86
71
from dbus.mainloop.glib import DBusGMainLoop
87
72
import ctypes
88
73
import ctypes.util
89
74
import xml.dom.minidom
90
75
import inspect
91
76
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
str = unicode
95
96
# Show warnings by default
97
if not sys.warnoptions:
98
import warnings
99
warnings.simplefilter("default")
100
101
# Try to find the value of SO_BINDTODEVICE:
102
77
try:
103
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
104
# newer, and it is also the most natural place for it:
105
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
106
79
except AttributeError:
107
80
try:
108
# This is where SO_BINDTODEVICE was up to and including Python
109
# 2.6, and also 3.2:
110
81
from IN import SO_BINDTODEVICE
111
82
except ImportError:
112
# In Python 2.7 it seems to have been removed entirely.
113
# Try running the C preprocessor:
114
try:
115
cc = subprocess.Popen(["cc", "--language=c", "-E",
116
"/dev/stdin"],
117
stdin=subprocess.PIPE,
118
stdout=subprocess.PIPE)
119
stdout = cc.communicate(
120
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
121
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
122
except (OSError, ValueError, IndexError):
123
# No value found
124
SO_BINDTODEVICE = None
125
126
if sys.version_info < (3, 2):
127
configparser.Configparser = configparser.SafeConfigParser
128
129
version = "1.8.9"
130
stored_state_file = "clients.pickle"
131
132
logger = logging.getLogger()
133
logging.captureWarnings(True) # Show warnings via the logging system
134
syslogger = None
135
136
try:
137
if_nametoindex = ctypes.cdll.LoadLibrary(
138
ctypes.util.find_library("c")).if_nametoindex
139
except (OSError, AttributeError):
140
141
def if_nametoindex(interface):
142
"Get an interface index the hard way, i.e. using fcntl()"
143
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
144
with contextlib.closing(socket.socket()) as s:
145
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
146
struct.pack(b"16s16x", interface))
147
interface_index = struct.unpack("I", ifreq[16:20])[0]
148
return interface_index
149
150
151
def copy_function(func):
152
"""Make a copy of a function"""
153
if sys.version_info.major == 2:
154
return types.FunctionType(func.func_code,
155
func.func_globals,
156
func.func_name,
157
func.func_defaults,
158
func.func_closure)
159
else:
160
return types.FunctionType(func.__code__,
161
func.__globals__,
162
func.__name__,
163
func.__defaults__,
164
func.__closure__)
165
166
167
def initlogger(debug, level=logging.WARNING):
168
"""init logger and add loglevel"""
169
170
global syslogger
171
syslogger = (logging.handlers.SysLogHandler(
172
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
173
address="/dev/log"))
174
syslogger.setFormatter(logging.Formatter
175
('Mandos [%(process)d]: %(levelname)s:'
176
' %(message)s'))
177
logger.addHandler(syslogger)
178
179
if debug:
180
console = logging.StreamHandler()
181
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
182
' [%(process)d]:'
183
' %(levelname)s:'
184
' %(message)s'))
185
logger.addHandler(console)
186
logger.setLevel(level)
187
188
189
class PGPError(Exception):
190
"""Exception if encryption/decryption fails"""
191
pass
192
193
194
class PGPEngine:
195
"""A simple class for OpenPGP symmetric encryption & decryption"""
196
197
def __init__(self):
198
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
199
self.gpg = "gpg"
200
try:
201
output = subprocess.check_output(["gpgconf"])
202
for line in output.splitlines():
203
name, text, path = line.split(b":")
204
if name == b"gpg":
205
self.gpg = path
206
break
207
except OSError as e:
208
if e.errno != errno.ENOENT:
209
raise
210
self.gnupgargs = ['--batch',
211
'--homedir', self.tempdir,
212
'--force-mdc',
213
'--quiet']
214
# Only GPG version 1 has the --no-use-agent option.
215
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
216
self.gnupgargs.append("--no-use-agent")
217
218
def __enter__(self):
219
return self
220
221
def __exit__(self, exc_type, exc_value, traceback):
222
self._cleanup()
223
return False
224
225
def __del__(self):
226
self._cleanup()
227
228
def _cleanup(self):
229
if self.tempdir is not None:
230
# Delete contents of tempdir
231
for root, dirs, files in os.walk(self.tempdir,
232
topdown=False):
233
for filename in files:
234
os.remove(os.path.join(root, filename))
235
for dirname in dirs:
236
os.rmdir(os.path.join(root, dirname))
237
# Remove tempdir
238
os.rmdir(self.tempdir)
239
self.tempdir = None
240
241
def password_encode(self, password):
242
# Passphrase can not be empty and can not contain newlines or
243
# NUL bytes. So we prefix it and hex encode it.
244
encoded = b"mandos" + binascii.hexlify(password)
245
if len(encoded) > 2048:
246
# GnuPG can't handle long passwords, so encode differently
247
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
248
.replace(b"\n", b"\\n")
249
.replace(b"\0", b"\\x00"))
250
return encoded
251
252
def encrypt(self, data, password):
253
passphrase = self.password_encode(password)
254
with tempfile.NamedTemporaryFile(
255
dir=self.tempdir) as passfile:
256
passfile.write(passphrase)
257
passfile.flush()
258
proc = subprocess.Popen([self.gpg, '--symmetric',
259
'--passphrase-file',
260
passfile.name]
261
+ self.gnupgargs,
262
stdin=subprocess.PIPE,
263
stdout=subprocess.PIPE,
264
stderr=subprocess.PIPE)
265
ciphertext, err = proc.communicate(input=data)
266
if proc.returncode != 0:
267
raise PGPError(err)
268
return ciphertext
269
270
def decrypt(self, data, password):
271
passphrase = self.password_encode(password)
272
with tempfile.NamedTemporaryFile(
273
dir=self.tempdir) as passfile:
274
passfile.write(passphrase)
275
passfile.flush()
276
proc = subprocess.Popen([self.gpg, '--decrypt',
277
'--passphrase-file',
278
passfile.name]
279
+ self.gnupgargs,
280
stdin=subprocess.PIPE,
281
stdout=subprocess.PIPE,
282
stderr=subprocess.PIPE)
283
decrypted_plaintext, err = proc.communicate(input=data)
284
if proc.returncode != 0:
285
raise PGPError(err)
286
return decrypted_plaintext
287
288
289
# Pretend that we have an Avahi module
290
class avahi:
291
"""This isn't so much a class as it is a module-like namespace."""
292
IF_UNSPEC = -1 # avahi-common/address.h
293
PROTO_UNSPEC = -1 # avahi-common/address.h
294
PROTO_INET = 0 # avahi-common/address.h
295
PROTO_INET6 = 1 # avahi-common/address.h
296
DBUS_NAME = "org.freedesktop.Avahi"
297
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
298
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
299
DBUS_PATH_SERVER = "/"
300
301
@staticmethod
302
def string_array_to_txt_array(t):
303
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
304
for s in t), signature="ay")
305
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
306
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
307
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
308
SERVER_INVALID = 0 # avahi-common/defs.h
309
SERVER_REGISTERING = 1 # avahi-common/defs.h
310
SERVER_RUNNING = 2 # avahi-common/defs.h
311
SERVER_COLLISION = 3 # avahi-common/defs.h
312
SERVER_FAILURE = 4 # avahi-common/defs.h
313
83
SO_BINDTODEVICE = None
84
85
86
version = "1.3.1"
87
88
#logger = logging.getLogger('mandos')
89
logger = logging.Logger('mandos')
90
syslogger = (logging.handlers.SysLogHandler
91
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
92
address = str("/dev/log")))
93
syslogger.setFormatter(logging.Formatter
94
('Mandos [%(process)d]: %(levelname)s:'
95
' %(message)s'))
96
logger.addHandler(syslogger)
97
98
console = logging.StreamHandler()
99
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
314
103
315
104
class AvahiError(Exception):
316
105
def __init__(self, value, *args, **kwargs):
317
106
self.value = value
318
return super(AvahiError, self).__init__(value, *args,
319
**kwargs)
320
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
321
110
322
111
class AvahiServiceError(AvahiError):
323
112
pass
324
113
325
326
114
class AvahiGroupError(AvahiError):
327
115
pass
328
116
329
117
330
class AvahiService:
118
class AvahiService(object):
331
119
"""An Avahi (Zeroconf) service.
332
120
333
121
Attributes:
334
122
interface: integer; avahi.IF_UNSPEC or an interface index.
335
123
Used to optionally bind to the specified interface.
336
124
name: string; Example: 'Mandos'
337
125
type: string; Example: '_mandos._tcp'.
338
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
339
127
port: integer; what port to announce
340
128
TXT: list of strings; TXT record for the service
341
129
domain: string; Domain to publish on, default to .local if empty.
347
135
server: D-Bus Server
348
136
bus: dbus.SystemBus()
349
137
"""
350
351
def __init__(self,
352
interface=avahi.IF_UNSPEC,
353
name=None,
354
servicetype=None,
355
port=None,
356
TXT=None,
357
domain="",
358
host="",
359
max_renames=32768,
360
protocol=avahi.PROTO_UNSPEC,
361
bus=None):
138
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
139
servicetype = None, port = None, TXT = None,
140
domain = "", host = "", max_renames = 32768,
141
protocol = avahi.PROTO_UNSPEC, bus = None):
362
142
self.interface = interface
363
143
self.name = name
364
144
self.type = servicetype
373
153
self.server = None
374
154
self.bus = bus
375
155
self.entry_group_state_changed_match = None
376
377
def rename(self, remove=True):
156
def rename(self):
378
157
"""Derived from the Avahi example code"""
379
158
if self.rename_count >= self.max_renames:
380
159
logger.critical("No suitable Zeroconf service name found"
381
160
" after %i retries, exiting.",
382
161
self.rename_count)
383
162
raise AvahiServiceError("Too many renames")
384
self.name = str(
385
self.server.GetAlternativeServiceName(self.name))
386
self.rename_count += 1
163
self.name = unicode(self.server
164
.GetAlternativeServiceName(self.name))
387
165
logger.info("Changing Zeroconf service name to %r ...",
388
166
self.name)
389
if remove:
390
self.remove()
167
syslogger.setFormatter(logging.Formatter
168
('Mandos (%s) [%%(process)d]:'
169
' %%(levelname)s: %%(message)s'
170
% self.name))
171
self.remove()
391
172
try:
392
173
self.add()
393
174
except dbus.exceptions.DBusException as error:
394
if (error.get_dbus_name()
395
== "org.freedesktop.Avahi.CollisionError"):
396
logger.info("Local Zeroconf service name collision.")
397
return self.rename(remove=False)
398
else:
399
logger.critical("D-Bus Exception", exc_info=error)
400
self.cleanup()
401
os._exit(1)
402
175
logger.critical("DBusException: %s", error)
176
self.cleanup()
177
os._exit(1)
178
self.rename_count += 1
403
179
def remove(self):
404
180
"""Derived from the Avahi example code"""
405
181
if self.entry_group_state_changed_match is not None:
407
183
self.entry_group_state_changed_match = None
408
184
if self.group is not None:
409
185
self.group.Reset()
410
411
186
def add(self):
412
187
"""Derived from the Avahi example code"""
413
188
self.remove()
418
193
avahi.DBUS_INTERFACE_ENTRY_GROUP)
419
194
self.entry_group_state_changed_match = (
420
195
self.group.connect_to_signal(
421
'StateChanged', self.entry_group_state_changed))
196
'StateChanged', self .entry_group_state_changed))
422
197
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
423
198
self.name, self.type)
424
199
self.group.AddService(
430
205
dbus.UInt16(self.port),
431
206
avahi.string_array_to_txt_array(self.TXT))
432
207
self.group.Commit()
433
434
208
def entry_group_state_changed(self, state, error):
435
209
"""Derived from the Avahi example code"""
436
210
logger.debug("Avahi entry group state change: %i", state)
437
211
438
212
if state == avahi.ENTRY_GROUP_ESTABLISHED:
439
213
logger.debug("Zeroconf service established.")
440
214
elif state == avahi.ENTRY_GROUP_COLLISION:
442
216
self.rename()
443
217
elif state == avahi.ENTRY_GROUP_FAILURE:
444
218
logger.critical("Avahi: Error in group state changed %s",
445
str(error))
446
raise AvahiGroupError("State changed: {!s}".format(error))
447
219
unicode(error))
220
raise AvahiGroupError("State changed: %s"
221
% unicode(error))
448
222
def cleanup(self):
449
223
"""Derived from the Avahi example code"""
450
224
if self.group is not None:
451
225
try:
452
226
self.group.Free()
453
227
except (dbus.exceptions.UnknownMethodException,
454
dbus.exceptions.DBusException):
228
dbus.exceptions.DBusException) as e:
455
229
pass
456
230
self.group = None
457
231
self.remove()
458
459
232
def server_state_changed(self, state, error=None):
460
233
"""Derived from the Avahi example code"""
461
234
logger.debug("Avahi server state change: %i", state)
462
bad_states = {
463
avahi.SERVER_INVALID: "Zeroconf server invalid",
464
avahi.SERVER_REGISTERING: None,
465
avahi.SERVER_COLLISION: "Zeroconf server name collision",
466
avahi.SERVER_FAILURE: "Zeroconf server failure",
467
}
235
bad_states = { avahi.SERVER_INVALID:
236
"Zeroconf server invalid",
237
avahi.SERVER_REGISTERING: None,
238
avahi.SERVER_COLLISION:
239
"Zeroconf server name collision",
240
avahi.SERVER_FAILURE:
241
"Zeroconf server failure" }
468
242
if state in bad_states:
469
243
if bad_states[state] is not None:
470
244
if error is None:
473
247
logger.error(bad_states[state] + ": %r", error)
474
248
self.cleanup()
475
249
elif state == avahi.SERVER_RUNNING:
476
try:
477
self.add()
478
except dbus.exceptions.DBusException as error:
479
if (error.get_dbus_name()
480
== "org.freedesktop.Avahi.CollisionError"):
481
logger.info("Local Zeroconf service name"
482
" collision.")
483
return self.rename(remove=False)
484
else:
485
logger.critical("D-Bus Exception", exc_info=error)
486
self.cleanup()
487
os._exit(1)
250
self.add()
488
251
else:
489
252
if error is None:
490
253
logger.debug("Unknown state: %r", state)
491
254
else:
492
255
logger.debug("Unknown state: %r: %r", state, error)
493
494
256
def activate(self):
495
257
"""Derived from the Avahi example code"""
496
258
if self.server is None:
500
262
follow_name_owner_changes=True),
501
263
avahi.DBUS_INTERFACE_SERVER)
502
264
self.server.connect_to_signal("StateChanged",
503
self.server_state_changed)
265
self.server_state_changed)
504
266
self.server_state_changed(self.server.GetState())
505
267
506
268
507
class AvahiServiceToSyslog(AvahiService):
508
def rename(self, *args, **kwargs):
509
"""Add the new name to the syslog messages"""
510
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
511
syslogger.setFormatter(logging.Formatter(
512
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
513
.format(self.name)))
514
return ret
515
516
517
# Pretend that we have a GnuTLS module
518
class gnutls:
519
"""This isn't so much a class as it is a module-like namespace."""
520
521
library = ctypes.util.find_library("gnutls")
522
if library is None:
523
library = ctypes.util.find_library("gnutls-deb0")
524
_library = ctypes.cdll.LoadLibrary(library)
525
del library
526
527
# Unless otherwise indicated, the constants and types below are
528
# all from the gnutls/gnutls.h C header file.
529
530
# Constants
531
E_SUCCESS = 0
532
E_INTERRUPTED = -52
533
E_AGAIN = -28
534
CRT_OPENPGP = 2
535
CRT_RAWPK = 3
536
CLIENT = 2
537
SHUT_RDWR = 0
538
CRD_CERTIFICATE = 1
539
E_NO_CERTIFICATE_FOUND = -49
540
X509_FMT_DER = 0
541
NO_TICKETS = 1<<10
542
ENABLE_RAWPK = 1<<18
543
CTYPE_PEERS = 3
544
KEYID_USE_SHA256 = 1 # gnutls/x509.h
545
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
546
547
# Types
548
class session_int(ctypes.Structure):
549
_fields_ = []
550
session_t = ctypes.POINTER(session_int)
551
552
class certificate_credentials_st(ctypes.Structure):
553
_fields_ = []
554
certificate_credentials_t = ctypes.POINTER(
555
certificate_credentials_st)
556
certificate_type_t = ctypes.c_int
557
558
class datum_t(ctypes.Structure):
559
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
560
('size', ctypes.c_uint)]
561
562
class openpgp_crt_int(ctypes.Structure):
563
_fields_ = []
564
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
565
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
566
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
567
credentials_type_t = ctypes.c_int
568
transport_ptr_t = ctypes.c_void_p
569
close_request_t = ctypes.c_int
570
571
# Exceptions
572
class Error(Exception):
573
def __init__(self, message=None, code=None, args=()):
574
# Default usage is by a message string, but if a return
575
# code is passed, convert it to a string with
576
# gnutls.strerror()
577
self.code = code
578
if message is None and code is not None:
579
message = gnutls.strerror(code)
580
return super(gnutls.Error, self).__init__(
581
message, *args)
582
583
class CertificateSecurityError(Error):
584
pass
585
586
# Classes
587
class Credentials:
588
def __init__(self):
589
self._c_object = gnutls.certificate_credentials_t()
590
gnutls.certificate_allocate_credentials(
591
ctypes.byref(self._c_object))
592
self.type = gnutls.CRD_CERTIFICATE
593
594
def __del__(self):
595
gnutls.certificate_free_credentials(self._c_object)
596
597
class ClientSession:
598
def __init__(self, socket, credentials=None):
599
self._c_object = gnutls.session_t()
600
gnutls_flags = gnutls.CLIENT
601
if gnutls.check_version(b"3.5.6"):
602
gnutls_flags |= gnutls.NO_TICKETS
603
if gnutls.has_rawpk:
604
gnutls_flags |= gnutls.ENABLE_RAWPK
605
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
606
del gnutls_flags
607
gnutls.set_default_priority(self._c_object)
608
gnutls.transport_set_ptr(self._c_object, socket.fileno())
609
gnutls.handshake_set_private_extensions(self._c_object,
610
True)
611
self.socket = socket
612
if credentials is None:
613
credentials = gnutls.Credentials()
614
gnutls.credentials_set(self._c_object, credentials.type,
615
ctypes.cast(credentials._c_object,
616
ctypes.c_void_p))
617
self.credentials = credentials
618
619
def __del__(self):
620
gnutls.deinit(self._c_object)
621
622
def handshake(self):
623
return gnutls.handshake(self._c_object)
624
625
def send(self, data):
626
data = bytes(data)
627
data_len = len(data)
628
while data_len > 0:
629
data_len -= gnutls.record_send(self._c_object,
630
data[-data_len:],
631
data_len)
632
633
def bye(self):
634
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
635
636
# Error handling functions
637
def _error_code(result):
638
"""A function to raise exceptions on errors, suitable
639
for the 'restype' attribute on ctypes functions"""
640
if result >= 0:
641
return result
642
if result == gnutls.E_NO_CERTIFICATE_FOUND:
643
raise gnutls.CertificateSecurityError(code=result)
644
raise gnutls.Error(code=result)
645
646
def _retry_on_error(result, func, arguments):
647
"""A function to retry on some errors, suitable
648
for the 'errcheck' attribute on ctypes functions"""
649
while result < 0:
650
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
651
return _error_code(result)
652
result = func(*arguments)
653
return result
654
655
# Unless otherwise indicated, the function declarations below are
656
# all from the gnutls/gnutls.h C header file.
657
658
# Functions
659
priority_set_direct = _library.gnutls_priority_set_direct
660
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
661
ctypes.POINTER(ctypes.c_char_p)]
662
priority_set_direct.restype = _error_code
663
664
init = _library.gnutls_init
665
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
666
init.restype = _error_code
667
668
set_default_priority = _library.gnutls_set_default_priority
669
set_default_priority.argtypes = [session_t]
670
set_default_priority.restype = _error_code
671
672
record_send = _library.gnutls_record_send
673
record_send.argtypes = [session_t, ctypes.c_void_p,
674
ctypes.c_size_t]
675
record_send.restype = ctypes.c_ssize_t
676
record_send.errcheck = _retry_on_error
677
678
certificate_allocate_credentials = (
679
_library.gnutls_certificate_allocate_credentials)
680
certificate_allocate_credentials.argtypes = [
681
ctypes.POINTER(certificate_credentials_t)]
682
certificate_allocate_credentials.restype = _error_code
683
684
certificate_free_credentials = (
685
_library.gnutls_certificate_free_credentials)
686
certificate_free_credentials.argtypes = [
687
certificate_credentials_t]
688
certificate_free_credentials.restype = None
689
690
handshake_set_private_extensions = (
691
_library.gnutls_handshake_set_private_extensions)
692
handshake_set_private_extensions.argtypes = [session_t,
693
ctypes.c_int]
694
handshake_set_private_extensions.restype = None
695
696
credentials_set = _library.gnutls_credentials_set
697
credentials_set.argtypes = [session_t, credentials_type_t,
698
ctypes.c_void_p]
699
credentials_set.restype = _error_code
700
701
strerror = _library.gnutls_strerror
702
strerror.argtypes = [ctypes.c_int]
703
strerror.restype = ctypes.c_char_p
704
705
certificate_type_get = _library.gnutls_certificate_type_get
706
certificate_type_get.argtypes = [session_t]
707
certificate_type_get.restype = _error_code
708
709
certificate_get_peers = _library.gnutls_certificate_get_peers
710
certificate_get_peers.argtypes = [session_t,
711
ctypes.POINTER(ctypes.c_uint)]
712
certificate_get_peers.restype = ctypes.POINTER(datum_t)
713
714
global_set_log_level = _library.gnutls_global_set_log_level
715
global_set_log_level.argtypes = [ctypes.c_int]
716
global_set_log_level.restype = None
717
718
global_set_log_function = _library.gnutls_global_set_log_function
719
global_set_log_function.argtypes = [log_func]
720
global_set_log_function.restype = None
721
722
deinit = _library.gnutls_deinit
723
deinit.argtypes = [session_t]
724
deinit.restype = None
725
726
handshake = _library.gnutls_handshake
727
handshake.argtypes = [session_t]
728
handshake.restype = _error_code
729
handshake.errcheck = _retry_on_error
730
731
transport_set_ptr = _library.gnutls_transport_set_ptr
732
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
733
transport_set_ptr.restype = None
734
735
bye = _library.gnutls_bye
736
bye.argtypes = [session_t, close_request_t]
737
bye.restype = _error_code
738
bye.errcheck = _retry_on_error
739
740
check_version = _library.gnutls_check_version
741
check_version.argtypes = [ctypes.c_char_p]
742
check_version.restype = ctypes.c_char_p
743
744
_need_version = b"3.3.0"
745
if check_version(_need_version) is None:
746
raise self.Error("Needs GnuTLS {} or later"
747
.format(_need_version))
748
749
_tls_rawpk_version = b"3.6.6"
750
has_rawpk = bool(check_version(_tls_rawpk_version))
751
752
if has_rawpk:
753
# Types
754
class pubkey_st(ctypes.Structure):
755
_fields = []
756
pubkey_t = ctypes.POINTER(pubkey_st)
757
758
x509_crt_fmt_t = ctypes.c_int
759
760
# All the function declarations below are from gnutls/abstract.h
761
pubkey_init = _library.gnutls_pubkey_init
762
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
763
pubkey_init.restype = _error_code
764
765
pubkey_import = _library.gnutls_pubkey_import
766
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
767
x509_crt_fmt_t]
768
pubkey_import.restype = _error_code
769
770
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
771
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
772
ctypes.POINTER(ctypes.c_ubyte),
773
ctypes.POINTER(ctypes.c_size_t)]
774
pubkey_get_key_id.restype = _error_code
775
776
pubkey_deinit = _library.gnutls_pubkey_deinit
777
pubkey_deinit.argtypes = [pubkey_t]
778
pubkey_deinit.restype = None
779
else:
780
# All the function declarations below are from gnutls/openpgp.h
781
782
openpgp_crt_init = _library.gnutls_openpgp_crt_init
783
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
784
openpgp_crt_init.restype = _error_code
785
786
openpgp_crt_import = _library.gnutls_openpgp_crt_import
787
openpgp_crt_import.argtypes = [openpgp_crt_t,
788
ctypes.POINTER(datum_t),
789
openpgp_crt_fmt_t]
790
openpgp_crt_import.restype = _error_code
791
792
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
793
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
794
ctypes.POINTER(ctypes.c_uint)]
795
openpgp_crt_verify_self.restype = _error_code
796
797
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
798
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
799
openpgp_crt_deinit.restype = None
800
801
openpgp_crt_get_fingerprint = (
802
_library.gnutls_openpgp_crt_get_fingerprint)
803
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
804
ctypes.c_void_p,
805
ctypes.POINTER(
806
ctypes.c_size_t)]
807
openpgp_crt_get_fingerprint.restype = _error_code
808
809
if check_version(b"3.6.4"):
810
certificate_type_get2 = _library.gnutls_certificate_type_get2
811
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
812
certificate_type_get2.restype = _error_code
813
814
# Remove non-public functions
815
del _error_code, _retry_on_error
816
817
818
def call_pipe(connection, # : multiprocessing.Connection
819
func, *args, **kwargs):
820
"""This function is meant to be called by multiprocessing.Process
821
822
This function runs func(*args, **kwargs), and writes the resulting
823
return value on the provided multiprocessing.Connection.
824
"""
825
connection.send(func(*args, **kwargs))
826
connection.close()
827
828
829
class Client:
269
def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
274
275
class Client(object):
830
276
"""A representation of a client host served by this server.
831
277
832
278
Attributes:
833
approved: bool(); 'None' if not yet approved/disapproved
279
_approved: bool(); 'None' if not yet approved/disapproved
834
280
approval_delay: datetime.timedelta(); Time to wait for approval
835
281
approval_duration: datetime.timedelta(); Duration of one approval
836
checker: multiprocessing.Process(); a running checker process used
837
to see if the client lives. 'None' if no process is
838
running.
839
checker_callback_tag: a GLib event source tag, or None
282
checker: subprocess.Popen(); a running checker process used
283
to see if the client lives.
284
'None' if no process is running.
285
checker_callback_tag: a gobject event source tag, or None
840
286
checker_command: string; External command which is run to check
841
287
if client lives. %() expansions are done at
842
288
runtime with vars(self) as dict, so that for
843
289
instance %(name)s can be used in the command.
844
checker_initiator_tag: a GLib event source tag, or None
290
checker_initiator_tag: a gobject event source tag, or None
845
291
created: datetime.datetime(); (UTC) object creation
846
client_structure: Object describing what attributes a client has
847
and is used for storing the client at exit
848
292
current_checker_command: string; current running checker_command
849
disable_initiator_tag: a GLib event source tag, or None
293
disable_hook: If set, called by disable() as disable_hook(self)
294
disable_initiator_tag: a gobject event source tag, or None
850
295
enabled: bool()
851
296
fingerprint: string (40 or 32 hexadecimal digits); used to
852
uniquely identify an OpenPGP client
853
key_id: string (64 hexadecimal digits); used to uniquely identify
854
a client using raw public keys
297
uniquely identify the client
855
298
host: string; available for use by the checker command
856
299
interval: datetime.timedelta(); How often to start a new checker
857
300
last_approval_request: datetime.datetime(); (UTC) or None
858
301
last_checked_ok: datetime.datetime(); (UTC) or None
859
last_checker_status: integer between 0 and 255 reflecting exit
860
status of last checker. -1 reflects crashed
861
checker, -2 means no checker completed yet.
862
last_checker_signal: The signal which killed the last checker, if
863
last_checker_status is -1
864
last_enabled: datetime.datetime(); (UTC) or None
302
last_enabled: datetime.datetime(); (UTC)
865
303
name: string; from the config file, used in log messages and
866
304
D-Bus identifiers
867
305
secret: bytestring; sent verbatim (over TLS) to client
868
306
timeout: datetime.timedelta(); How long from last_checked_ok
869
307
until this client is disabled
870
extended_timeout: extra long timeout when secret has been sent
308
extended_timeout: extra long timeout when password has been sent
871
309
runtime_expansions: Allowed attributes for runtime expansion.
872
310
expires: datetime.datetime(); time (UTC) when a client will be
873
311
disabled, or None
874
server_settings: The server_settings dict from main()
875
312
"""
876
313
877
314
runtime_expansions = ("approval_delay", "approval_duration",
878
"created", "enabled", "expires", "key_id",
879
"fingerprint", "host", "interval",
880
"last_approval_request", "last_checked_ok",
315
"created", "enabled", "fingerprint",
316
"host", "interval", "last_checked_ok",
881
317
"last_enabled", "name", "timeout")
882
client_defaults = {
883
"timeout": "PT5M",
884
"extended_timeout": "PT15M",
885
"interval": "PT2M",
886
"checker": "fping -q -- %%(host)s",
887
"host": "",
888
"approval_delay": "PT0S",
889
"approval_duration": "PT1S",
890
"approved_by_default": "True",
891
"enabled": "True",
892
}
893
894
@staticmethod
895
def config_parser(config):
896
"""Construct a new dict of client settings of this form:
897
{ client_name: {setting_name: value, ...}, ...}
898
with exceptions for any special settings as defined above.
899
NOTE: Must be a pure function. Must return the same result
900
value given the same arguments.
901
"""
902
settings = {}
903
for client_name in config.sections():
904
section = dict(config.items(client_name))
905
client = settings[client_name] = {}
906
907
client["host"] = section["host"]
908
# Reformat values from string types to Python types
909
client["approved_by_default"] = config.getboolean(
910
client_name, "approved_by_default")
911
client["enabled"] = config.getboolean(client_name,
912
"enabled")
913
914
# Uppercase and remove spaces from key_id and fingerprint
915
# for later comparison purposes with return value from the
916
# key_id() and fingerprint() functions
917
client["key_id"] = (section.get("key_id", "").upper()
918
.replace(" ", ""))
919
client["fingerprint"] = (section["fingerprint"].upper()
920
.replace(" ", ""))
921
if "secret" in section:
922
client["secret"] = codecs.decode(section["secret"]
923
.encode("utf-8"),
924
"base64")
925
elif "secfile" in section:
926
with open(os.path.expanduser(os.path.expandvars
927
(section["secfile"])),
928
"rb") as secfile:
929
client["secret"] = secfile.read()
930
else:
931
raise TypeError("No secret or secfile for section {}"
932
.format(section))
933
client["timeout"] = string_to_delta(section["timeout"])
934
client["extended_timeout"] = string_to_delta(
935
section["extended_timeout"])
936
client["interval"] = string_to_delta(section["interval"])
937
client["approval_delay"] = string_to_delta(
938
section["approval_delay"])
939
client["approval_duration"] = string_to_delta(
940
section["approval_duration"])
941
client["checker_command"] = section["checker"]
942
client["last_approval_request"] = None
943
client["last_checked_ok"] = None
944
client["last_checker_status"] = -2
945
946
return settings
947
948
def __init__(self, settings, name=None, server_settings=None):
318
319
def timeout_milliseconds(self):
320
"Return the 'timeout' attribute in milliseconds"
321
return _timedelta_to_milliseconds(self.timeout)
322
323
def extended_timeout_milliseconds(self):
324
"Return the 'extended_timeout' attribute in milliseconds"
325
return _timedelta_to_milliseconds(self.extended_timeout)
326
327
def interval_milliseconds(self):
328
"Return the 'interval' attribute in milliseconds"
329
return _timedelta_to_milliseconds(self.interval)
330
331
def approval_delay_milliseconds(self):
332
return _timedelta_to_milliseconds(self.approval_delay)
333
334
def __init__(self, name = None, disable_hook=None, config=None):
335
"""Note: the 'checker' key in 'config' sets the
336
'checker_command' attribute and *not* the 'checker'
337
attribute."""
949
338
self.name = name
950
if server_settings is None:
951
server_settings = {}
952
self.server_settings = server_settings
953
# adding all client settings
954
for setting, value in settings.items():
955
setattr(self, setting, value)
956
957
if self.enabled:
958
if not hasattr(self, "last_enabled"):
959
self.last_enabled = datetime.datetime.utcnow()
960
if not hasattr(self, "expires"):
961
self.expires = (datetime.datetime.utcnow()
962
+ self.timeout)
963
else:
964
self.last_enabled = None
965
self.expires = None
966
339
if config is None:
340
config = {}
967
341
logger.debug("Creating client %r", self.name)
968
logger.debug(" Key ID: %s", self.key_id)
342
# Uppercase and remove spaces from fingerprint for later
343
# comparison purposes with return value from the fingerprint()
344
# function
345
self.fingerprint = (config["fingerprint"].upper()
346
.replace(" ", ""))
969
347
logger.debug(" Fingerprint: %s", self.fingerprint)
970
self.created = settings.get("created",
971
datetime.datetime.utcnow())
972
973
# attributes specific for this server instance
348
if "secret" in config:
349
self.secret = config["secret"].decode("base64")
350
elif "secfile" in config:
351
with open(os.path.expanduser(os.path.expandvars
352
(config["secfile"])),
353
"rb") as secfile:
354
self.secret = secfile.read()
355
else:
356
raise TypeError("No secret or secfile for client %s"
357
% self.name)
358
self.host = config.get("host", "")
359
self.created = datetime.datetime.utcnow()
360
self.enabled = False
361
self.last_approval_request = None
362
self.last_enabled = None
363
self.last_checked_ok = None
364
self.timeout = string_to_delta(config["timeout"])
365
self.extended_timeout = string_to_delta(config
366
["extended_timeout"])
367
self.interval = string_to_delta(config["interval"])
368
self.disable_hook = disable_hook
974
369
self.checker = None
975
370
self.checker_initiator_tag = None
976
371
self.disable_initiator_tag = None
372
self.expires = None
977
373
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
978
375
self.current_checker_command = None
979
self.approved = None
376
self.last_connect = None
377
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
379
True)
980
380
self.approvals_pending = 0
981
self.changedstate = multiprocessing_manager.Condition(
982
multiprocessing_manager.Lock())
983
self.client_structure = [attr
984
for attr in self.__dict__.keys()
985
if not attr.startswith("_")]
986
self.client_structure.append("client_structure")
987
988
for name, t in inspect.getmembers(
989
type(self), lambda obj: isinstance(obj, property)):
990
if not name.startswith("_"):
991
self.client_structure.append(name)
992
993
# Send notice to process children that client state has changed
381
self.approval_delay = string_to_delta(
382
config["approval_delay"])
383
self.approval_duration = string_to_delta(
384
config["approval_duration"])
385
self.changedstate = (multiprocessing_manager
386
.Condition(multiprocessing_manager
387
.Lock()))
388
994
389
def send_changedstate(self):
995
with self.changedstate:
996
self.changedstate.notify_all()
997
390
self.changedstate.acquire()
391
self.changedstate.notify_all()
392
self.changedstate.release()
393
998
394
def enable(self):
999
395
"""Start this client's checker and timeout hooks"""
1000
396
if getattr(self, "enabled", False):
1001
397
# Already enabled
1002
398
return
399
self.send_changedstate()
400
# Schedule a new checker to be started an 'interval' from now,
401
# and every interval from then on.
402
self.checker_initiator_tag = (gobject.timeout_add
403
(self.interval_milliseconds(),
404
self.start_checker))
405
# Schedule a disable() when 'timeout' has passed
1003
406
self.expires = datetime.datetime.utcnow() + self.timeout
407
self.disable_initiator_tag = (gobject.timeout_add
408
(self.timeout_milliseconds(),
409
self.disable))
1004
410
self.enabled = True
1005
411
self.last_enabled = datetime.datetime.utcnow()
1006
self.init_checker()
1007
self.send_changedstate()
1008
412
# Also start a new checker *right now*.
413
self.start_checker()
414
1009
415
def disable(self, quiet=True):
1010
416
"""Disable this client."""
1011
417
if not getattr(self, "enabled", False):
1012
418
return False
1013
419
if not quiet:
420
self.send_changedstate()
421
if not quiet:
1014
422
logger.info("Disabling client %s", self.name)
1015
if getattr(self, "disable_initiator_tag", None) is not None:
1016
GLib.source_remove(self.disable_initiator_tag)
423
if getattr(self, "disable_initiator_tag", False):
424
gobject.source_remove(self.disable_initiator_tag)
1017
425
self.disable_initiator_tag = None
1018
426
self.expires = None
1019
if getattr(self, "checker_initiator_tag", None) is not None:
1020
GLib.source_remove(self.checker_initiator_tag)
427
if getattr(self, "checker_initiator_tag", False):
428
gobject.source_remove(self.checker_initiator_tag)
1021
429
self.checker_initiator_tag = None
1022
430
self.stop_checker()
431
if self.disable_hook:
432
self.disable_hook(self)
1023
433
self.enabled = False
1024
if not quiet:
1025
self.send_changedstate()
1026
# Do not run this again if called by a GLib.timeout_add
434
# Do not run this again if called by a gobject.timeout_add
1027
435
return False
1028
436
1029
437
def __del__(self):
438
self.disable_hook = None
1030
439
self.disable()
1031
1032
def init_checker(self):
1033
# Schedule a new checker to be started an 'interval' from now,
1034
# and every interval from then on.
1035
if self.checker_initiator_tag is not None:
1036
GLib.source_remove(self.checker_initiator_tag)
1037
self.checker_initiator_tag = GLib.timeout_add(
1038
int(self.interval.total_seconds() * 1000),
1039
self.start_checker)
1040
# Schedule a disable() when 'timeout' has passed
1041
if self.disable_initiator_tag is not None:
1042
GLib.source_remove(self.disable_initiator_tag)
1043
self.disable_initiator_tag = GLib.timeout_add(
1044
int(self.timeout.total_seconds() * 1000), self.disable)
1045
# Also start a new checker *right now*.
1046
self.start_checker()
1047
1048
def checker_callback(self, source, condition, connection,
1049
command):
440
441
def checker_callback(self, pid, condition, command):
1050
442
"""The checker has completed, so take appropriate actions."""
1051
# Read return code from connection (see call_pipe)
1052
returncode = connection.recv()
1053
connection.close()
1054
if self.checker is not None:
1055
self.checker.join()
1056
443
self.checker_callback_tag = None
1057
444
self.checker = None
1058
1059
if returncode >= 0:
1060
self.last_checker_status = returncode
1061
self.last_checker_signal = None
1062
if self.last_checker_status == 0:
445
if os.WIFEXITED(condition):
446
exitstatus = os.WEXITSTATUS(condition)
447
if exitstatus == 0:
1063
448
logger.info("Checker for %(name)s succeeded",
1064
449
vars(self))
1065
450
self.checked_ok()
1066
451
else:
1067
logger.info("Checker for %(name)s failed", vars(self))
452
logger.info("Checker for %(name)s failed",
453
vars(self))
1068
454
else:
1069
self.last_checker_status = -1
1070
self.last_checker_signal = -returncode
1071
455
logger.warning("Checker for %(name)s crashed?",
1072
456
vars(self))
1073
return False
1074
1075
def checked_ok(self):
1076
"""Assert that the client has been seen, alive and well."""
1077
self.last_checked_ok = datetime.datetime.utcnow()
1078
self.last_checker_status = 0
1079
self.last_checker_signal = None
1080
self.bump_timeout()
1081
1082
def bump_timeout(self, timeout=None):
1083
"""Bump up the timeout for this client."""
457
458
def checked_ok(self, timeout=None):
459
"""Bump up the timeout for this client.
460
461
This should only be called when the client has been seen,
462
alive and well.
463
"""
1084
464
if timeout is None:
1085
465
timeout = self.timeout
1086
if self.disable_initiator_tag is not None:
1087
GLib.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
1089
if getattr(self, "enabled", False):
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(timeout.total_seconds() * 1000), self.disable)
1092
self.expires = datetime.datetime.utcnow() + timeout
1093
466
self.last_checked_ok = datetime.datetime.utcnow()
467
gobject.source_remove(self.disable_initiator_tag)
468
self.expires = datetime.datetime.utcnow() + timeout
469
self.disable_initiator_tag = (gobject.timeout_add
470
(_timedelta_to_milliseconds
471
(timeout), self.disable))
472
1094
473
def need_approval(self):
1095
474
self.last_approval_request = datetime.datetime.utcnow()
1096
475
1097
476
def start_checker(self):
1098
477
"""Start a new checker subprocess if one is not running.
1099
478
1100
479
If a checker already exists, leave it running and do
1101
480
nothing."""
1102
481
# The reason for not killing a running checker is that if we
1103
# did that, and if a checker (for some reason) started running
1104
# slowly and taking more than 'interval' time, then the client
1105
# would inevitably timeout, since no checker would get a
1106
# chance to run to completion. If we instead leave running
482
# did that, then if a checker (for some reason) started
483
# running slowly and taking more than 'interval' time, the
484
# client would inevitably timeout, since no checker would get
485
# a chance to run to completion. If we instead leave running
1107
486
# checkers alone, the checker would have to take more time
1108
487
# than 'timeout' for the client to be disabled, which is as it
1109
488
# should be.
1110
1111
if self.checker is not None and not self.checker.is_alive():
1112
logger.warning("Checker was not alive; joining")
1113
self.checker.join()
1114
self.checker = None
489
490
# If a checker exists, make sure it is not a zombie
491
try:
492
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
493
except (AttributeError, OSError) as error:
494
if (isinstance(error, OSError)
495
and error.errno != errno.ECHILD):
496
raise error
497
else:
498
if pid:
499
logger.warning("Checker was a zombie")
500
gobject.source_remove(self.checker_callback_tag)
501
self.checker_callback(pid, status,
502
self.current_checker_command)
1115
503
# Start a new checker if needed
1116
504
if self.checker is None:
1117
# Escape attributes for the shell
1118
escaped_attrs = {
1119
attr: re.escape(str(getattr(self, attr)))
1120
for attr in self.runtime_expansions}
1121
505
try:
1122
command = self.checker_command % escaped_attrs
1123
except TypeError as error:
1124
logger.error('Could not format string "%s"',
1125
self.checker_command,
1126
exc_info=error)
1127
return True # Try again later
506
# In case checker_command has exactly one % operator
507
command = self.checker_command % self.host
508
except TypeError:
509
# Escape attributes for the shell
510
escaped_attrs = dict(
511
(attr,
512
re.escape(unicode(str(getattr(self, attr, "")),
513
errors=
514
'replace')))
515
for attr in
516
self.runtime_expansions)
517
518
try:
519
command = self.checker_command % escaped_attrs
520
except TypeError as error:
521
logger.error('Could not format string "%s":'
522
' %s', self.checker_command, error)
523
return True # Try again later
1128
524
self.current_checker_command = command
1129
logger.info("Starting checker %r for %s", command,
1130
self.name)
1131
# We don't need to redirect stdout and stderr, since
1132
# in normal mode, that is already done by daemon(),
1133
# and in debug mode we don't want to. (Stdin is
1134
# always replaced by /dev/null.)
1135
# The exception is when not debugging but nevertheless
1136
# running in the foreground; use the previously
1137
# created wnull.
1138
popen_args = {"close_fds": True,
1139
"shell": True,
1140
"cwd": "/"}
1141
if (not self.server_settings["debug"]
1142
and self.server_settings["foreground"]):
1143
popen_args.update({"stdout": wnull,
1144
"stderr": wnull})
1145
pipe = multiprocessing.Pipe(duplex=False)
1146
self.checker = multiprocessing.Process(
1147
target=call_pipe,
1148
args=(pipe[1], subprocess.call, command),
1149
kwargs=popen_args)
1150
self.checker.start()
1151
self.checker_callback_tag = GLib.io_add_watch(
1152
GLib.IOChannel.unix_new(pipe[0].fileno()),
1153
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1154
self.checker_callback, pipe[0], command)
1155
# Re-run this periodically if run by GLib.timeout_add
525
try:
526
logger.info("Starting checker %r for %s",
527
command, self.name)
528
# We don't need to redirect stdout and stderr, since
529
# in normal mode, that is already done by daemon(),
530
# and in debug mode we don't want to. (Stdin is
531
# always replaced by /dev/null.)
532
self.checker = subprocess.Popen(command,
533
close_fds=True,
534
shell=True, cwd="/")
535
self.checker_callback_tag = (gobject.child_watch_add
536
(self.checker.pid,
537
self.checker_callback,
538
data=command))
539
# The checker may have completed before the gobject
540
# watch was added. Check for this.
541
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
542
if pid:
543
gobject.source_remove(self.checker_callback_tag)
544
self.checker_callback(pid, status, command)
545
except OSError as error:
546
logger.error("Failed to start subprocess: %s",
547
error)
548
# Re-run this periodically if run by gobject.timeout_add
1156
549
return True
1157
550
1158
551
def stop_checker(self):
1159
552
"""Force the checker process, if any, to stop."""
1160
553
if self.checker_callback_tag:
1161
GLib.source_remove(self.checker_callback_tag)
554
gobject.source_remove(self.checker_callback_tag)
1162
555
self.checker_callback_tag = None
1163
556
if getattr(self, "checker", None) is None:
1164
557
return
1165
558
logger.debug("Stopping checker for %(name)s", vars(self))
1166
self.checker.terminate()
559
try:
560
os.kill(self.checker.pid, signal.SIGTERM)
561
#time.sleep(0.5)
562
#if self.checker.poll() is None:
563
# os.kill(self.checker.pid, signal.SIGKILL)
564
except OSError as error:
565
if error.errno != errno.ESRCH: # No such process
566
raise
1167
567
self.checker = None
1168
568
1169
569
1170
def dbus_service_property(dbus_interface,
1171
signature="v",
1172
access="readwrite",
1173
byte_arrays=False):
570
def dbus_service_property(dbus_interface, signature="v",
571
access="readwrite", byte_arrays=False):
1174
572
"""Decorators for marking methods of a DBusObjectWithProperties to
1175
573
become properties on the D-Bus.
1176
574
1177
575
The decorated method will be called with no arguments by "Get"
1178
576
and with one argument by "Set".
1179
577
1180
578
The parameters, where they are supported, are the same as
1181
579
dbus.service.method, except there is only "signature", since the
1182
580
type from Get() and the type sent to Set() is the same.
1185
583
# "Set" method, so we fail early here:
1186
584
if byte_arrays and signature != "ay":
1187
585
raise ValueError("Byte arrays not supported for non-'ay'"
1188
" signature {!r}".format(signature))
1189
586
" signature %r" % signature)
1190
587
def decorator(func):
1191
588
func._dbus_is_property = True
1192
589
func._dbus_interface = dbus_interface
1195
592
func._dbus_name = func.__name__
1196
593
if func._dbus_name.endswith("_dbus_property"):
1197
594
func._dbus_name = func._dbus_name[:-14]
1198
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1199
return func
1200
1201
return decorator
1202
1203
1204
def dbus_interface_annotations(dbus_interface):
1205
"""Decorator for marking functions returning interface annotations
1206
1207
Usage:
1208
1209
@dbus_interface_annotations("org.example.Interface")
1210
def _foo(self): # Function name does not matter
1211
return {"org.freedesktop.DBus.Deprecated": "true",
1212
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1213
"false"}
1214
"""
1215
1216
def decorator(func):
1217
func._dbus_is_interface = True
1218
func._dbus_interface = dbus_interface
1219
func._dbus_name = dbus_interface
1220
return func
1221
1222
return decorator
1223
1224
1225
def dbus_annotations(annotations):
1226
"""Decorator to annotate D-Bus methods, signals or properties
1227
Usage:
1228
1229
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property."
1231
"EmitsChangedSignal": "false"})
1232
@dbus_service_property("org.example.Interface", signature="b",
1233
access="r")
1234
def Property_dbus_property(self):
1235
return dbus.Boolean(False)
1236
1237
See also the DBusObjectWithAnnotations class.
1238
"""
1239
1240
def decorator(func):
1241
func._dbus_annotations = annotations
1242
return func
1243
595
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
596
return func
1244
597
return decorator
1245
598
1246
599
1247
600
class DBusPropertyException(dbus.exceptions.DBusException):
1248
601
"""A base class for D-Bus property-related exceptions
1249
602
"""
1250
pass
603
def __unicode__(self):
604
return unicode(str(self))
1251
605
1252
606
1253
607
class DBusPropertyAccessException(DBusPropertyException):
1262
616
pass
1263
617
1264
618
1265
class DBusObjectWithAnnotations(dbus.service.Object):
1266
"""A D-Bus object with annotations.
1267
1268
Classes inheriting from this can use the dbus_annotations
1269
decorator to add annotations to methods or signals.
1270
"""
1271
1272
@staticmethod
1273
def _is_dbus_thing(thing):
1274
"""Returns a function testing if an attribute is a D-Bus thing
1275
1276
If called like _is_dbus_thing("method") it returns a function
1277
suitable for use as predicate to inspect.getmembers().
1278
"""
1279
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1280
False)
1281
1282
def _get_all_dbus_things(self, thing):
1283
"""Returns a generator of (name, attribute) pairs
1284
"""
1285
return ((getattr(athing.__get__(self), "_dbus_name", name),
1286
athing.__get__(self))
1287
for cls in self.__class__.__mro__
1288
for name, athing in
1289
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1290
1291
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1292
out_signature="s",
1293
path_keyword='object_path',
1294
connection_keyword='connection')
1295
def Introspect(self, object_path, connection):
1296
"""Overloading of standard D-Bus method.
1297
1298
Inserts annotation tags on methods and signals.
1299
"""
1300
xmlstring = dbus.service.Object.Introspect(self, object_path,
1301
connection)
1302
try:
1303
document = xml.dom.minidom.parseString(xmlstring)
1304
1305
for if_tag in document.getElementsByTagName("interface"):
1306
# Add annotation tags
1307
for typ in ("method", "signal"):
1308
for tag in if_tag.getElementsByTagName(typ):
1309
annots = dict()
1310
for name, prop in (self.
1311
_get_all_dbus_things(typ)):
1312
if (name == tag.getAttribute("name")
1313
and prop._dbus_interface
1314
== if_tag.getAttribute("name")):
1315
annots.update(getattr(
1316
prop, "_dbus_annotations", {}))
1317
for name, value in annots.items():
1318
ann_tag = document.createElement(
1319
"annotation")
1320
ann_tag.setAttribute("name", name)
1321
ann_tag.setAttribute("value", value)
1322
tag.appendChild(ann_tag)
1323
# Add interface annotation tags
1324
for annotation, value in dict(
1325
itertools.chain.from_iterable(
1326
annotations().items()
1327
for name, annotations
1328
in self._get_all_dbus_things("interface")
1329
if name == if_tag.getAttribute("name")
1330
)).items():
1331
ann_tag = document.createElement("annotation")
1332
ann_tag.setAttribute("name", annotation)
1333
ann_tag.setAttribute("value", value)
1334
if_tag.appendChild(ann_tag)
1335
# Fix argument name for the Introspect method itself
1336
if (if_tag.getAttribute("name")
1337
== dbus.INTROSPECTABLE_IFACE):
1338
for cn in if_tag.getElementsByTagName("method"):
1339
if cn.getAttribute("name") == "Introspect":
1340
for arg in cn.getElementsByTagName("arg"):
1341
if (arg.getAttribute("direction")
1342
== "out"):
1343
arg.setAttribute("name",
1344
"xml_data")
1345
xmlstring = document.toxml("utf-8")
1346
document.unlink()
1347
except (AttributeError, xml.dom.DOMException,
1348
xml.parsers.expat.ExpatError) as error:
1349
logger.error("Failed to override Introspection method",
1350
exc_info=error)
1351
return xmlstring
1352
1353
1354
class DBusObjectWithProperties(DBusObjectWithAnnotations):
619
class DBusObjectWithProperties(dbus.service.Object):
1355
620
"""A D-Bus object with properties.
1356
621
1357
622
Classes inheriting from this can use the dbus_service_property
1358
623
decorator to expose methods as D-Bus properties. It exposes the
1359
624
standard Get(), Set(), and GetAll() methods on the D-Bus.
1360
625
"""
1361
626
627
@staticmethod
628
def _is_dbus_property(obj):
629
return getattr(obj, "_dbus_is_property", False)
630
631
def _get_all_dbus_properties(self):
632
"""Returns a generator of (name, attribute) pairs
633
"""
634
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
635
for cls in self.__class__.__mro__
636
for name, prop in
637
inspect.getmembers(cls, self._is_dbus_property))
638
1362
639
def _get_dbus_property(self, interface_name, property_name):
1363
640
"""Returns a bound method if one exists which is a D-Bus
1364
641
property with the specified name and interface.
1365
642
"""
1366
for cls in self.__class__.__mro__:
1367
for name, value in inspect.getmembers(
1368
cls, self._is_dbus_thing("property")):
643
for cls in self.__class__.__mro__:
644
for name, value in (inspect.getmembers
645
(cls, self._is_dbus_property)):
1369
646
if (value._dbus_name == property_name
1370
647
and value._dbus_interface == interface_name):
1371
648
return value.__get__(self)
1372
649
1373
650
# No such property
1374
raise DBusPropertyNotFound("{}:{}.{}".format(
1375
self.dbus_object_path, interface_name, property_name))
1376
1377
@classmethod
1378
def _get_all_interface_names(cls):
1379
"""Get a sequence of all interfaces supported by an object"""
1380
return (name for name in set(getattr(getattr(x, attr),
1381
"_dbus_interface", None)
1382
for x in (inspect.getmro(cls))
1383
for attr in dir(x))
1384
if name is not None)
1385
1386
@dbus.service.method(dbus.PROPERTIES_IFACE,
1387
in_signature="ss",
651
raise DBusPropertyNotFound(self.dbus_object_path + ":"
652
+ interface_name + "."
653
+ property_name)
654
655
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1388
656
out_signature="v")
1389
657
def Get(self, interface_name, property_name):
1390
658
"""Standard D-Bus property Get() method, see D-Bus standard.
1396
664
if not hasattr(value, "variant_level"):
1397
665
return value
1398
666
return type(value)(value, variant_level=value.variant_level+1)
1399
667
1400
668
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1401
669
def Set(self, interface_name, property_name, value):
1402
670
"""Standard D-Bus property Set() method, see D-Bus standard.
1408
676
# The byte_arrays option is not supported yet on
1409
677
# signatures other than "ay".
1410
678
if prop._dbus_signature != "ay":
1411
raise ValueError("Byte arrays not supported for non-"
1412
"'ay' signature {!r}"
1413
.format(prop._dbus_signature))
1414
value = dbus.ByteArray(bytes(value))
679
raise ValueError
680
value = dbus.ByteArray(''.join(unichr(byte)
681
for byte in value))
1415
682
prop(value)
1416
1417
@dbus.service.method(dbus.PROPERTIES_IFACE,
1418
in_signature="s",
683
684
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1419
685
out_signature="a{sv}")
1420
686
def GetAll(self, interface_name):
1421
687
"""Standard D-Bus property GetAll() method, see D-Bus
1422
688
standard.
1423
689
1424
690
Note: Will not include properties with access="write".
1425
691
"""
1426
properties = {}
1427
for name, prop in self._get_all_dbus_things("property"):
692
all = {}
693
for name, prop in self._get_all_dbus_properties():
1428
694
if (interface_name
1429
695
and interface_name != prop._dbus_interface):
1430
696
# Interface non-empty but did not match
1434
700
continue
1435
701
value = prop()
1436
702
if not hasattr(value, "variant_level"):
1437
properties[name] = value
703
all[name] = value
1438
704
continue
1439
properties[name] = type(value)(
1440
value, variant_level=value.variant_level + 1)
1441
return dbus.Dictionary(properties, signature="sv")
1442
1443
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1444
def PropertiesChanged(self, interface_name, changed_properties,
1445
invalidated_properties):
1446
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1447
standard.
1448
"""
1449
pass
1450
705
all[name] = type(value)(value, variant_level=
706
value.variant_level+1)
707
return dbus.Dictionary(all, signature="sv")
708
1451
709
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1452
710
out_signature="s",
1453
711
path_keyword='object_path',
1454
712
connection_keyword='connection')
1455
713
def Introspect(self, object_path, connection):
1456
"""Overloading of standard D-Bus method.
1457
1458
Inserts property tags and interface annotation tags.
714
"""Standard D-Bus method, overloaded to insert property tags.
1459
715
"""
1460
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1461
object_path,
1462
connection)
716
xmlstring = dbus.service.Object.Introspect(self, object_path,
717
connection)
1463
718
try:
1464
719
document = xml.dom.minidom.parseString(xmlstring)
1465
1466
720
def make_tag(document, name, prop):
1467
721
e = document.createElement("property")
1468
722
e.setAttribute("name", name)
1469
723
e.setAttribute("type", prop._dbus_signature)
1470
724
e.setAttribute("access", prop._dbus_access)
1471
725
return e
1472
1473
726
for if_tag in document.getElementsByTagName("interface"):
1474
# Add property tags
1475
727
for tag in (make_tag(document, name, prop)
1476
728
for name, prop
1477
in self._get_all_dbus_things("property")
729
in self._get_all_dbus_properties()
1478
730
if prop._dbus_interface
1479
731
== if_tag.getAttribute("name")):
1480
732
if_tag.appendChild(tag)
1481
# Add annotation tags for properties
1482
for tag in if_tag.getElementsByTagName("property"):
1483
annots = dict()
1484
for name, prop in self._get_all_dbus_things(
1485
"property"):
1486
if (name == tag.getAttribute("name")
1487
and prop._dbus_interface
1488
== if_tag.getAttribute("name")):
1489
annots.update(getattr(
1490
prop, "_dbus_annotations", {}))
1491
for name, value in annots.items():
1492
ann_tag = document.createElement(
1493
"annotation")
1494
ann_tag.setAttribute("name", name)
1495
ann_tag.setAttribute("value", value)
1496
tag.appendChild(ann_tag)
1497
733
# Add the names to the return values for the
1498
734
# "org.freedesktop.DBus.Properties" methods
1499
735
if (if_tag.getAttribute("name")
1514
750
except (AttributeError, xml.dom.DOMException,
1515
751
xml.parsers.expat.ExpatError) as error:
1516
752
logger.error("Failed to override Introspection method",
1517
exc_info=error)
1518
return xmlstring
1519
1520
1521
try:
1522
dbus.OBJECT_MANAGER_IFACE
1523
except AttributeError:
1524
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1525
1526
1527
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1528
"""A D-Bus object with an ObjectManager.
1529
1530
Classes inheriting from this exposes the standard
1531
GetManagedObjects call and the InterfacesAdded and
1532
InterfacesRemoved signals on the standard
1533
"org.freedesktop.DBus.ObjectManager" interface.
1534
1535
Note: No signals are sent automatically; they must be sent
1536
manually.
1537
"""
1538
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1539
out_signature="a{oa{sa{sv}}}")
1540
def GetManagedObjects(self):
1541
"""This function must be overridden"""
1542
raise NotImplementedError()
1543
1544
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1545
signature="oa{sa{sv}}")
1546
def InterfacesAdded(self, object_path, interfaces_and_properties):
1547
pass
1548
1549
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1550
def InterfacesRemoved(self, object_path, interfaces):
1551
pass
1552
1553
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1554
out_signature="s",
1555
path_keyword='object_path',
1556
connection_keyword='connection')
1557
def Introspect(self, object_path, connection):
1558
"""Overloading of standard D-Bus method.
1559
1560
Override return argument name of GetManagedObjects to be
1561
"objpath_interfaces_and_properties"
1562
"""
1563
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1564
object_path,
1565
connection)
1566
try:
1567
document = xml.dom.minidom.parseString(xmlstring)
1568
1569
for if_tag in document.getElementsByTagName("interface"):
1570
# Fix argument name for the GetManagedObjects method
1571
if (if_tag.getAttribute("name")
1572
== dbus.OBJECT_MANAGER_IFACE):
1573
for cn in if_tag.getElementsByTagName("method"):
1574
if (cn.getAttribute("name")
1575
== "GetManagedObjects"):
1576
for arg in cn.getElementsByTagName("arg"):
1577
if (arg.getAttribute("direction")
1578
== "out"):
1579
arg.setAttribute(
1580
"name",
1581
"objpath_interfaces"
1582
"_and_properties")
1583
xmlstring = document.toxml("utf-8")
1584
document.unlink()
1585
except (AttributeError, xml.dom.DOMException,
1586
xml.parsers.expat.ExpatError) as error:
1587
logger.error("Failed to override Introspection method",
1588
exc_info=error)
1589
return xmlstring
1590
1591
1592
def datetime_to_dbus(dt, variant_level=0):
753
error)
754
return xmlstring
755
756
757
def datetime_to_dbus (dt, variant_level=0):
1593
758
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1594
759
if dt is None:
1595
return dbus.String("", variant_level=variant_level)
1596
return dbus.String(dt.isoformat(), variant_level=variant_level)
1597
1598
1599
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1600
"""A class decorator; applied to a subclass of
1601
dbus.service.Object, it will add alternate D-Bus attributes with
1602
interface names according to the "alt_interface_names" mapping.
1603
Usage:
1604
1605
@alternate_dbus_interfaces({"org.example.Interface":
1606
"net.example.AlternateInterface"})
1607
class SampleDBusObject(dbus.service.Object):
1608
@dbus.service.method("org.example.Interface")
1609
def SampleDBusMethod():
1610
pass
1611
1612
The above "SampleDBusMethod" on "SampleDBusObject" will be
1613
reachable via two interfaces: "org.example.Interface" and
1614
"net.example.AlternateInterface", the latter of which will have
1615
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1616
"true", unless "deprecate" is passed with a False value.
1617
1618
This works for methods and signals, and also for D-Bus properties
1619
(from DBusObjectWithProperties) and interfaces (from the
1620
dbus_interface_annotations decorator).
760
return dbus.String("", variant_level = variant_level)
761
return dbus.String(dt.isoformat(),
762
variant_level=variant_level)
763
764
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
765
.__metaclass__):
766
"""Applied to an empty subclass of a D-Bus object, this metaclass
767
will add additional D-Bus attributes matching a certain pattern.
1621
768
"""
1622
1623
def wrapper(cls):
1624
for orig_interface_name, alt_interface_name in (
1625
alt_interface_names.items()):
1626
attr = {}
1627
interface_names = set()
1628
# Go though all attributes of the class
1629
for attrname, attribute in inspect.getmembers(cls):
769
def __new__(mcs, name, bases, attr):
770
# Go through all the base classes which could have D-Bus
771
# methods, signals, or properties in them
772
for base in (b for b in bases
773
if issubclass(b, dbus.service.Object)):
774
# Go though all attributes of the base class
775
for attrname, attribute in inspect.getmembers(base):
1630
776
# Ignore non-D-Bus attributes, and D-Bus attributes
1631
777
# with the wrong interface name
1632
778
if (not hasattr(attribute, "_dbus_interface")
1633
or not attribute._dbus_interface.startswith(
1634
orig_interface_name)):
779
or not attribute._dbus_interface
780
.startswith("se.recompile.Mandos")):
1635
781
continue
1636
782
# Create an alternate D-Bus interface name based on
1637
783
# the current name
1638
alt_interface = attribute._dbus_interface.replace(
1639
orig_interface_name, alt_interface_name)
1640
interface_names.add(alt_interface)
784
alt_interface = (attribute._dbus_interface
785
.replace("se.recompile.Mandos",
786
"se.bsnet.fukt.Mandos"))
1641
787
# Is this a D-Bus signal?
1642
788
if getattr(attribute, "_dbus_is_signal", False):
1643
# Extract the original non-method undecorated
1644
# function by black magic
1645
if sys.version_info.major == 2:
1646
nonmethod_func = (dict(
789
# Extract the original non-method function by
790
# black magic
791
nonmethod_func = (dict(
1647
792
zip(attribute.func_code.co_freevars,
1648
attribute.__closure__))
1649
["func"].cell_contents)
1650
else:
1651
nonmethod_func = (dict(
1652
zip(attribute.__code__.co_freevars,
1653
attribute.__closure__))
1654
["func"].cell_contents)
793
attribute.__closure__))["func"]
794
.cell_contents)
1655
795
# Create a new, but exactly alike, function
1656
796
# object, and decorate it to be a new D-Bus signal
1657
797
# with the alternate D-Bus interface name
1658
new_function = copy_function(nonmethod_func)
1659
new_function = (dbus.service.signal(
1660
alt_interface,
1661
attribute._dbus_signature)(new_function))
1662
# Copy annotations, if any
1663
try:
1664
new_function._dbus_annotations = dict(
1665
attribute._dbus_annotations)
1666
except AttributeError:
1667
pass
1668
798
new_function = (dbus.service.signal
799
(alt_interface,
800
attribute._dbus_signature)
801
(types.FunctionType(
802
nonmethod_func.func_code,
803
nonmethod_func.func_globals,
804
nonmethod_func.func_name,
805
nonmethod_func.func_defaults,
806
nonmethod_func.func_closure)))
1669
807
# Define a creator of a function to call both the
1670
# original and alternate functions, so both the
1671
# original and alternate signals gets sent when
1672
# the function is called
808
# old and new functions, so both the old and new
809
# signals gets sent when the function is called
1673
810
def fixscope(func1, func2):
1674
811
"""This function is a scope container to pass
1675
812
func1 and func2 to the "call_both" function
1676
813
outside of its arguments"""
1677
1678
@functools.wraps(func2)
1679
814
def call_both(*args, **kwargs):
1680
815
"""This function will emit two D-Bus
1681
816
signals by calling func1 and func2"""
1682
817
func1(*args, **kwargs)
1683
818
func2(*args, **kwargs)
1684
# Make wrapper function look like a D-Bus
1685
# signal
1686
for name, attr in inspect.getmembers(func2):
1687
if name.startswith("_dbus_"):
1688
setattr(call_both, name, attr)
1689
1690
819
return call_both
1691
820
# Create the "call_both" function and add it to
1692
821
# the class
1693
attr[attrname] = fixscope(attribute, new_function)
822
attr[attrname] = fixscope(attribute,
823
new_function)
1694
824
# Is this a D-Bus method?
1695
825
elif getattr(attribute, "_dbus_is_method", False):
1696
826
# Create a new, but exactly alike, function
1697
827
# object. Decorate it to be a new D-Bus method
1698
828
# with the alternate D-Bus interface name. Add it
1699
829
# to the class.
1700
attr[attrname] = (
1701
dbus.service.method(
1702
alt_interface,
1703
attribute._dbus_in_signature,
1704
attribute._dbus_out_signature)
1705
(copy_function(attribute)))
1706
# Copy annotations, if any
1707
try:
1708
attr[attrname]._dbus_annotations = dict(
1709
attribute._dbus_annotations)
1710
except AttributeError:
1711
pass
830
attr[attrname] = (dbus.service.method
831
(alt_interface,
832
attribute._dbus_in_signature,
833
attribute._dbus_out_signature)
834
(types.FunctionType
835
(attribute.func_code,
836
attribute.func_globals,
837
attribute.func_name,
838
attribute.func_defaults,
839
attribute.func_closure)))
1712
840
# Is this a D-Bus property?
1713
841
elif getattr(attribute, "_dbus_is_property", False):
1714
842
# Create a new, but exactly alike, function
1715
843
# object, and decorate it to be a new D-Bus
1716
844
# property with the alternate D-Bus interface
1717
845
# name. Add it to the class.
1718
attr[attrname] = (dbus_service_property(
1719
alt_interface, attribute._dbus_signature,
1720
attribute._dbus_access,
1721
attribute._dbus_get_args_options
1722
["byte_arrays"])
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
1730
# Is this a D-Bus interface?
1731
elif getattr(attribute, "_dbus_is_interface", False):
1732
# Create a new, but exactly alike, function
1733
# object. Decorate it to be a new D-Bus interface
1734
# with the alternate D-Bus interface name. Add it
1735
# to the class.
1736
attr[attrname] = (
1737
dbus_interface_annotations(alt_interface)
1738
(copy_function(attribute)))
1739
if deprecate:
1740
# Deprecate all alternate interfaces
1741
iname = "_AlternateDBusNames_interface_annotation{}"
1742
for interface_name in interface_names:
1743
1744
@dbus_interface_annotations(interface_name)
1745
def func(self):
1746
return {"org.freedesktop.DBus.Deprecated":
1747
"true"}
1748
# Find an unused name
1749
for aname in (iname.format(i)
1750
for i in itertools.count()):
1751
if aname not in attr:
1752
attr[aname] = func
1753
break
1754
if interface_names:
1755
# Replace the class with a new subclass of it with
1756
# methods, signals, etc. as created above.
1757
if sys.version_info.major == 2:
1758
cls = type(b"{}Alternate".format(cls.__name__),
1759
(cls, ), attr)
1760
else:
1761
cls = type("{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
return cls
1764
1765
return wrapper
1766
1767
1768
@alternate_dbus_interfaces({"se.recompile.Mandos":
1769
"se.bsnet.fukt.Mandos"})
846
attr[attrname] = (dbus_service_property
847
(alt_interface,
848
attribute._dbus_signature,
849
attribute._dbus_access,
850
attribute
851
._dbus_get_args_options
852
["byte_arrays"])
853
(types.FunctionType
854
(attribute.func_code,
855
attribute.func_globals,
856
attribute.func_name,
857
attribute.func_defaults,
858
attribute.func_closure)))
859
return type.__new__(mcs, name, bases, attr)
860
1770
861
class ClientDBus(Client, DBusObjectWithProperties):
1771
862
"""A Client class using D-Bus
1772
863
1773
864
Attributes:
1774
865
dbus_object_path: dbus.ObjectPath
1775
866
bus: dbus.SystemBus()
1776
867
"""
1777
868
1778
869
runtime_expansions = (Client.runtime_expansions
1779
+ ("dbus_object_path", ))
1780
1781
_interface = "se.recompile.Mandos.Client"
1782
870
+ ("dbus_object_path",))
871
1783
872
# dbus.service.Object doesn't use super(), so we can't either.
1784
1785
def __init__(self, bus=None, *args, **kwargs):
873
874
def __init__(self, bus = None, *args, **kwargs):
875
self._approvals_pending = 0
1786
876
self.bus = bus
1787
877
Client.__init__(self, *args, **kwargs)
1788
878
# Only now, when this client is initialized, can it show up on
1789
879
# the D-Bus
1790
client_object_name = str(self.name).translate(
880
client_object_name = unicode(self.name).translate(
1791
881
{ord("."): ord("_"),
1792
882
ord("-"): ord("_")})
1793
self.dbus_object_path = dbus.ObjectPath(
1794
"/clients/" + client_object_name)
883
self.dbus_object_path = (dbus.ObjectPath
884
("/clients/" + client_object_name))
1795
885
DBusObjectWithProperties.__init__(self, self.bus,
1796
886
self.dbus_object_path)
1797
1798
def notifychangeproperty(transform_func, dbus_name,
1799
type_func=lambda x: x,
1800
variant_level=1,
1801
invalidate_only=False,
1802
_interface=_interface):
887
888
def notifychangeproperty(transform_func,
889
dbus_name, type_func=lambda x: x,
890
variant_level=1):
1803
891
""" Modify a variable so that it's a property which announces
1804
892
its changes to DBus.
1805
893
1806
transform_fun: Function that takes a value and a variant_level
1807
and transforms it to a D-Bus type.
894
transform_fun: Function that takes a value and transforms it
895
to a D-Bus type.
1808
896
dbus_name: D-Bus name of the variable
1809
897
type_func: Function that transform the value before sending it
1810
898
to the D-Bus. Default: no transform
1811
899
variant_level: D-Bus variant level. Default: 1
1812
900
"""
1813
attrname = "_{}".format(dbus_name)
1814
901
real_value = [None,]
1815
902
def setter(self, value):
903
old_value = real_value[0]
904
real_value[0] = value
1816
905
if hasattr(self, "dbus_object_path"):
1817
if (not hasattr(self, attrname) or
1818
type_func(getattr(self, attrname, None))
1819
!= type_func(value)):
1820
if invalidate_only:
1821
self.PropertiesChanged(
1822
_interface, dbus.Dictionary(),
1823
dbus.Array((dbus_name, )))
1824
else:
1825
dbus_value = transform_func(
1826
type_func(value),
1827
variant_level=variant_level)
1828
self.PropertyChanged(dbus.String(dbus_name),
1829
dbus_value)
1830
self.PropertiesChanged(
1831
_interface,
1832
dbus.Dictionary({dbus.String(dbus_name):
1833
dbus_value}),
1834
dbus.Array())
1835
setattr(self, attrname, value)
1836
1837
return property(lambda self: getattr(self, attrname), setter)
1838
906
if type_func(old_value) != type_func(real_value[0]):
907
dbus_value = transform_func(type_func
908
(real_value[0]),
909
variant_level)
910
self.PropertyChanged(dbus.String(dbus_name),
911
dbus_value)
912
913
return property(lambda self: real_value[0], setter)
914
915
1839
916
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1840
917
approvals_pending = notifychangeproperty(dbus.Boolean,
1841
918
"ApprovalPending",
1842
type_func=bool)
919
type_func = bool)
1843
920
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1844
921
last_enabled = notifychangeproperty(datetime_to_dbus,
1845
922
"LastEnabled")
1846
checker = notifychangeproperty(
1847
dbus.Boolean, "CheckerRunning",
1848
type_func=lambda checker: checker is not None)
923
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
924
type_func = lambda checker:
925
checker is not None)
1849
926
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1850
927
"LastCheckedOK")
1851
last_checker_status = notifychangeproperty(dbus.Int16,
1852
"LastCheckerStatus")
1853
928
last_approval_request = notifychangeproperty(
1854
929
datetime_to_dbus, "LastApprovalRequest")
1855
930
approved_by_default = notifychangeproperty(dbus.Boolean,
1856
931
"ApprovedByDefault")
1857
approval_delay = notifychangeproperty(
1858
dbus.UInt64, "ApprovalDelay",
1859
type_func=lambda td: td.total_seconds() * 1000)
932
approval_delay = notifychangeproperty(dbus.UInt16,
933
"ApprovalDelay",
934
type_func =
935
_timedelta_to_milliseconds)
1860
936
approval_duration = notifychangeproperty(
1861
dbus.UInt64, "ApprovalDuration",
1862
type_func=lambda td: td.total_seconds() * 1000)
937
dbus.UInt16, "ApprovalDuration",
938
type_func = _timedelta_to_milliseconds)
1863
939
host = notifychangeproperty(dbus.String, "Host")
1864
timeout = notifychangeproperty(
1865
dbus.UInt64, "Timeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
940
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
941
type_func =
942
_timedelta_to_milliseconds)
1867
943
extended_timeout = notifychangeproperty(
1868
dbus.UInt64, "ExtendedTimeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
1870
interval = notifychangeproperty(
1871
dbus.UInt64, "Interval",
1872
type_func=lambda td: td.total_seconds() * 1000)
944
dbus.UInt16, "ExtendedTimeout",
945
type_func = _timedelta_to_milliseconds)
946
interval = notifychangeproperty(dbus.UInt16,
947
"Interval",
948
type_func =
949
_timedelta_to_milliseconds)
1873
950
checker_command = notifychangeproperty(dbus.String, "Checker")
1874
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1875
invalidate_only=True)
1876
951
1877
952
del notifychangeproperty
1878
953
1879
954
def __del__(self, *args, **kwargs):
1880
955
try:
1881
956
self.remove_from_connection()
1884
959
if hasattr(DBusObjectWithProperties, "__del__"):
1885
960
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1886
961
Client.__del__(self, *args, **kwargs)
1887
1888
def checker_callback(self, source, condition,
1889
connection, command, *args, **kwargs):
1890
ret = Client.checker_callback(self, source, condition,
1891
connection, command, *args,
1892
**kwargs)
1893
exitstatus = self.last_checker_status
1894
if exitstatus >= 0:
962
963
def checker_callback(self, pid, condition, command,
964
*args, **kwargs):
965
self.checker_callback_tag = None
966
self.checker = None
967
if os.WIFEXITED(condition):
968
exitstatus = os.WEXITSTATUS(condition)
1895
969
# Emit D-Bus signal
1896
970
self.CheckerCompleted(dbus.Int16(exitstatus),
1897
# This is specific to GNU libC
1898
dbus.Int64(exitstatus << 8),
971
dbus.Int64(condition),
1899
972
dbus.String(command))
1900
973
else:
1901
974
# Emit D-Bus signal
1902
975
self.CheckerCompleted(dbus.Int16(-1),
1903
dbus.Int64(
1904
# This is specific to GNU libC
1905
(exitstatus << 8)
1906
| self.last_checker_signal),
976
dbus.Int64(condition),
1907
977
dbus.String(command))
1908
return ret
1909
978
979
return Client.checker_callback(self, pid, condition, command,
980
*args, **kwargs)
981
1910
982
def start_checker(self, *args, **kwargs):
1911
old_checker_pid = getattr(self.checker, "pid", None)
983
old_checker = self.checker
984
if self.checker is not None:
985
old_checker_pid = self.checker.pid
986
else:
987
old_checker_pid = None
1912
988
r = Client.start_checker(self, *args, **kwargs)
1913
989
# Only if new checker process was started
1914
990
if (self.checker is not None
1916
992
# Emit D-Bus signal
1917
993
self.CheckerStarted(self.current_checker_command)
1918
994
return r
1919
995
1920
996
def _reset_approved(self):
1921
self.approved = None
997
self._approved = None
1922
998
return False
1923
999
1924
1000
def approve(self, value=True):
1925
self.approved = value
1926
GLib.timeout_add(int(self.approval_duration.total_seconds()
1927
* 1000), self._reset_approved)
1928
1001
self.send_changedstate()
1929
1930
# D-Bus methods, signals & properties
1931
1932
# Interfaces
1933
1934
# Signals
1935
1002
self._approved = value
1003
gobject.timeout_add(_timedelta_to_milliseconds
1004
(self.approval_duration),
1005
self._reset_approved)
1006
1007
1008
## D-Bus methods, signals & properties
1009
_interface = "se.recompile.Mandos.Client"
1010
1011
## Signals
1012
1936
1013
# CheckerCompleted - signal
1937
1014
@dbus.service.signal(_interface, signature="nxs")
1938
1015
def CheckerCompleted(self, exitcode, waitstatus, command):
1939
1016
"D-Bus signal"
1940
1017
pass
1941
1018
1942
1019
# CheckerStarted - signal
1943
1020
@dbus.service.signal(_interface, signature="s")
1944
1021
def CheckerStarted(self, command):
1945
1022
"D-Bus signal"
1946
1023
pass
1947
1024
1948
1025
# PropertyChanged - signal
1949
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1950
1026
@dbus.service.signal(_interface, signature="sv")
1951
1027
def PropertyChanged(self, property, value):
1952
1028
"D-Bus signal"
1953
1029
pass
1954
1030
1955
1031
# GotSecret - signal
1956
1032
@dbus.service.signal(_interface)
1957
1033
def GotSecret(self):
1960
1036
server to mandos-client
1961
1037
"""
1962
1038
pass
1963
1039
1964
1040
# Rejected - signal
1965
1041
@dbus.service.signal(_interface, signature="s")
1966
1042
def Rejected(self, reason):
1967
1043
"D-Bus signal"
1968
1044
pass
1969
1045
1970
1046
# NeedApproval - signal
1971
1047
@dbus.service.signal(_interface, signature="tb")
1972
1048
def NeedApproval(self, timeout, default):
1973
1049
"D-Bus signal"
1974
1050
return self.need_approval()
1975
1976
# Methods
1977
1051
1052
## Methods
1053
1978
1054
# Approve - method
1979
1055
@dbus.service.method(_interface, in_signature="b")
1980
1056
def Approve(self, value):
1981
1057
self.approve(value)
1982
1058
1983
1059
# CheckedOK - method
1984
1060
@dbus.service.method(_interface)
1985
1061
def CheckedOK(self):
1986
1062
self.checked_ok()
1987
1063
1988
1064
# Enable - method
1989
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1990
1065
@dbus.service.method(_interface)
1991
1066
def Enable(self):
1992
1067
"D-Bus method"
1993
1068
self.enable()
1994
1069
1995
1070
# StartChecker - method
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1997
1071
@dbus.service.method(_interface)
1998
1072
def StartChecker(self):
1999
1073
"D-Bus method"
2000
1074
self.start_checker()
2001
1075
2002
1076
# Disable - method
2003
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2004
1077
@dbus.service.method(_interface)
2005
1078
def Disable(self):
2006
1079
"D-Bus method"
2007
1080
self.disable()
2008
1081
2009
1082
# StopChecker - method
2010
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2011
1083
@dbus.service.method(_interface)
2012
1084
def StopChecker(self):
2013
1085
self.stop_checker()
2014
2015
# Properties
2016
1086
1087
## Properties
1088
2017
1089
# ApprovalPending - property
2018
1090
@dbus_service_property(_interface, signature="b", access="read")
2019
1091
def ApprovalPending_dbus_property(self):
2020
1092
return dbus.Boolean(bool(self.approvals_pending))
2021
1093
2022
1094
# ApprovedByDefault - property
2023
@dbus_service_property(_interface,
2024
signature="b",
1095
@dbus_service_property(_interface, signature="b",
2025
1096
access="readwrite")
2026
1097
def ApprovedByDefault_dbus_property(self, value=None):
2027
1098
if value is None: # get
2028
1099
return dbus.Boolean(self.approved_by_default)
2029
1100
self.approved_by_default = bool(value)
2030
1101
2031
1102
# ApprovalDelay - property
2032
@dbus_service_property(_interface,
2033
signature="t",
1103
@dbus_service_property(_interface, signature="t",
2034
1104
access="readwrite")
2035
1105
def ApprovalDelay_dbus_property(self, value=None):
2036
1106
if value is None: # get
2037
return dbus.UInt64(self.approval_delay.total_seconds()
2038
* 1000)
1107
return dbus.UInt64(self.approval_delay_milliseconds())
2039
1108
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2040
1109
2041
1110
# ApprovalDuration - property
2042
@dbus_service_property(_interface,
2043
signature="t",
1111
@dbus_service_property(_interface, signature="t",
2044
1112
access="readwrite")
2045
1113
def ApprovalDuration_dbus_property(self, value=None):
2046
1114
if value is None: # get
2047
return dbus.UInt64(self.approval_duration.total_seconds()
2048
* 1000)
1115
return dbus.UInt64(_timedelta_to_milliseconds(
1116
self.approval_duration))
2049
1117
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2050
1118
2051
1119
# Name - property
2052
@dbus_annotations(
2053
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2054
1120
@dbus_service_property(_interface, signature="s", access="read")
2055
1121
def Name_dbus_property(self):
2056
1122
return dbus.String(self.name)
2057
2058
# KeyID - property
2059
@dbus_annotations(
2060
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2061
@dbus_service_property(_interface, signature="s", access="read")
2062
def KeyID_dbus_property(self):
2063
return dbus.String(self.key_id)
2064
1123
2065
1124
# Fingerprint - property
2066
@dbus_annotations(
2067
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2068
1125
@dbus_service_property(_interface, signature="s", access="read")
2069
1126
def Fingerprint_dbus_property(self):
2070
1127
return dbus.String(self.fingerprint)
2071
1128
2072
1129
# Host - property
2073
@dbus_service_property(_interface,
2074
signature="s",
1130
@dbus_service_property(_interface, signature="s",
2075
1131
access="readwrite")
2076
1132
def Host_dbus_property(self, value=None):
2077
1133
if value is None: # get
2078
1134
return dbus.String(self.host)
2079
self.host = str(value)
2080
1135
self.host = value
1136
2081
1137
# Created - property
2082
@dbus_annotations(
2083
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2084
1138
@dbus_service_property(_interface, signature="s", access="read")
2085
1139
def Created_dbus_property(self):
2086
return datetime_to_dbus(self.created)
2087
1140
return dbus.String(datetime_to_dbus(self.created))
1141
2088
1142
# LastEnabled - property
2089
1143
@dbus_service_property(_interface, signature="s", access="read")
2090
1144
def LastEnabled_dbus_property(self):
2091
1145
return datetime_to_dbus(self.last_enabled)
2092
1146
2093
1147
# Enabled - property
2094
@dbus_service_property(_interface,
2095
signature="b",
1148
@dbus_service_property(_interface, signature="b",
2096
1149
access="readwrite")
2097
1150
def Enabled_dbus_property(self, value=None):
2098
1151
if value is None: # get
2101
1154
self.enable()
2102
1155
else:
2103
1156
self.disable()
2104
1157
2105
1158
# LastCheckedOK - property
2106
@dbus_service_property(_interface,
2107
signature="s",
1159
@dbus_service_property(_interface, signature="s",
2108
1160
access="readwrite")
2109
1161
def LastCheckedOK_dbus_property(self, value=None):
2110
1162
if value is not None:
2111
1163
self.checked_ok()
2112
1164
return
2113
1165
return datetime_to_dbus(self.last_checked_ok)
2114
2115
# LastCheckerStatus - property
2116
@dbus_service_property(_interface, signature="n", access="read")
2117
def LastCheckerStatus_dbus_property(self):
2118
return dbus.Int16(self.last_checker_status)
2119
1166
2120
1167
# Expires - property
2121
1168
@dbus_service_property(_interface, signature="s", access="read")
2122
1169
def Expires_dbus_property(self):
2123
1170
return datetime_to_dbus(self.expires)
2124
1171
2125
1172
# LastApprovalRequest - property
2126
1173
@dbus_service_property(_interface, signature="s", access="read")
2127
1174
def LastApprovalRequest_dbus_property(self):
2128
1175
return datetime_to_dbus(self.last_approval_request)
2129
1176
2130
1177
# Timeout - property
2131
@dbus_service_property(_interface,
2132
signature="t",
1178
@dbus_service_property(_interface, signature="t",
2133
1179
access="readwrite")
2134
1180
def Timeout_dbus_property(self, value=None):
2135
1181
if value is None: # get
2136
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2137
old_timeout = self.timeout
1182
return dbus.UInt64(self.timeout_milliseconds())
2138
1183
self.timeout = datetime.timedelta(0, 0, 0, value)
2139
# Reschedule disabling
2140
if self.enabled:
2141
now = datetime.datetime.utcnow()
2142
self.expires += self.timeout - old_timeout
2143
if self.expires <= now:
2144
# The timeout has passed
2145
self.disable()
2146
else:
2147
if (getattr(self, "disable_initiator_tag", None)
2148
is None):
2149
return
2150
GLib.source_remove(self.disable_initiator_tag)
2151
self.disable_initiator_tag = GLib.timeout_add(
2152
int((self.expires - now).total_seconds() * 1000),
2153
self.disable)
2154
1184
if getattr(self, "disable_initiator_tag", None) is None:
1185
return
1186
# Reschedule timeout
1187
gobject.source_remove(self.disable_initiator_tag)
1188
self.disable_initiator_tag = None
1189
self.expires = None
1190
time_to_die = (self.
1191
_timedelta_to_milliseconds((self
1192
.last_checked_ok
1193
+ self.timeout)
1194
- datetime.datetime
1195
.utcnow()))
1196
if time_to_die <= 0:
1197
# The timeout has passed
1198
self.disable()
1199
else:
1200
self.expires = (datetime.datetime.utcnow()
1201
+ datetime.timedelta(milliseconds =
1202
time_to_die))
1203
self.disable_initiator_tag = (gobject.timeout_add
1204
(time_to_die, self.disable))
1205
2155
1206
# ExtendedTimeout - property
2156
@dbus_service_property(_interface,
2157
signature="t",
1207
@dbus_service_property(_interface, signature="t",
2158
1208
access="readwrite")
2159
1209
def ExtendedTimeout_dbus_property(self, value=None):
2160
1210
if value is None: # get
2161
return dbus.UInt64(self.extended_timeout.total_seconds()
2162
* 1000)
1211
return dbus.UInt64(self.extended_timeout_milliseconds())
2163
1212
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2164
1213
2165
1214
# Interval - property
2166
@dbus_service_property(_interface,
2167
signature="t",
1215
@dbus_service_property(_interface, signature="t",
2168
1216
access="readwrite")
2169
1217
def Interval_dbus_property(self, value=None):
2170
1218
if value is None: # get
2171
return dbus.UInt64(self.interval.total_seconds() * 1000)
1219
return dbus.UInt64(self.interval_milliseconds())
2172
1220
self.interval = datetime.timedelta(0, 0, 0, value)
2173
1221
if getattr(self, "checker_initiator_tag", None) is None:
2174
1222
return
2175
if self.enabled:
2176
# Reschedule checker run
2177
GLib.source_remove(self.checker_initiator_tag)
2178
self.checker_initiator_tag = GLib.timeout_add(
2179
value, self.start_checker)
2180
self.start_checker() # Start one now, too
2181
1223
# Reschedule checker run
1224
gobject.source_remove(self.checker_initiator_tag)
1225
self.checker_initiator_tag = (gobject.timeout_add
1226
(value, self.start_checker))
1227
self.start_checker() # Start one now, too
1228
2182
1229
# Checker - property
2183
@dbus_service_property(_interface,
2184
signature="s",
1230
@dbus_service_property(_interface, signature="s",
2185
1231
access="readwrite")
2186
1232
def Checker_dbus_property(self, value=None):
2187
1233
if value is None: # get
2188
1234
return dbus.String(self.checker_command)
2189
self.checker_command = str(value)
2190
1235
self.checker_command = value
1236
2191
1237
# CheckerRunning - property
2192
@dbus_service_property(_interface,
2193
signature="b",
1238
@dbus_service_property(_interface, signature="b",
2194
1239
access="readwrite")
2195
1240
def CheckerRunning_dbus_property(self, value=None):
2196
1241
if value is None: # get
2199
1244
self.start_checker()
2200
1245
else:
2201
1246
self.stop_checker()
2202
1247
2203
1248
# ObjectPath - property
2204
@dbus_annotations(
2205
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2206
"org.freedesktop.DBus.Deprecated": "true"})
2207
1249
@dbus_service_property(_interface, signature="o", access="read")
2208
1250
def ObjectPath_dbus_property(self):
2209
return self.dbus_object_path # is already a dbus.ObjectPath
2210
1251
return self.dbus_object_path # is already a dbus.ObjectPath
1252
2211
1253
# Secret = property
2212
@dbus_annotations(
2213
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2214
"invalidates"})
2215
@dbus_service_property(_interface,
2216
signature="ay",
2217
access="write",
2218
byte_arrays=True)
1254
@dbus_service_property(_interface, signature="ay",
1255
access="write", byte_arrays=True)
2219
1256
def Secret_dbus_property(self, value):
2220
self.secret = bytes(value)
2221
1257
self.secret = str(value)
1258
2222
1259
del _interface
2223
1260
2224
1261
2225
class ProxyClient:
2226
def __init__(self, child_pipe, key_id, fpr, address):
1262
class ProxyClient(object):
1263
def __init__(self, child_pipe, fpr, address):
2227
1264
self._pipe = child_pipe
2228
self._pipe.send(('init', key_id, fpr, address))
1265
self._pipe.send(('init', fpr, address))
2229
1266
if not self._pipe.recv():
2230
raise KeyError(key_id or fpr)
2231
1267
raise KeyError()
1268
2232
1269
def __getattribute__(self, name):
2233
if name == '_pipe':
1270
if(name == '_pipe'):
2234
1271
return super(ProxyClient, self).__getattribute__(name)
2235
1272
self._pipe.send(('getattr', name))
2236
1273
data = self._pipe.recv()
2237
1274
if data[0] == 'data':
2238
1275
return data[1]
2239
1276
if data[0] == 'function':
2240
2241
1277
def func(*args, **kwargs):
2242
1278
self._pipe.send(('funcall', name, args, kwargs))
2243
1279
return self._pipe.recv()[1]
2244
2245
1280
return func
2246
1281
2247
1282
def __setattr__(self, name, value):
2248
if name == '_pipe':
1283
if(name == '_pipe'):
2249
1284
return super(ProxyClient, self).__setattr__(name, value)
2250
1285
self._pipe.send(('setattr', name, value))
2251
1286
1287
class ClientDBusTransitional(ClientDBus):
1288
__metaclass__ = AlternateDBusNamesMetaclass
2252
1289
2253
1290
class ClientHandler(socketserver.BaseRequestHandler, object):
2254
1291
"""A class to handle client connections.
2255
1292
2256
1293
Instantiated once for each connection to handle it.
2257
1294
Note: This will run in its own forked process."""
2258
1295
2259
1296
def handle(self):
2260
1297
with contextlib.closing(self.server.child_pipe) as child_pipe:
2261
1298
logger.info("TCP connection from: %s",
2262
str(self.client_address))
1299
unicode(self.client_address))
2263
1300
logger.debug("Pipe FD: %d",
2264
1301
self.server.child_pipe.fileno())
2265
2266
session = gnutls.ClientSession(self.request)
2267
2268
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2269
# "+AES-256-CBC", "+SHA1",
2270
# "+COMP-NULL", "+CTYPE-OPENPGP",
2271
# "+DHE-DSS"))
1302
1303
session = (gnutls.connection
1304
.ClientSession(self.request,
1305
gnutls.connection
1306
.X509Credentials()))
1307
1308
# Note: gnutls.connection.X509Credentials is really a
1309
# generic GnuTLS certificate credentials object so long as
1310
# no X.509 keys are added to it. Therefore, we can use it
1311
# here despite using OpenPGP certificates.
1312
1313
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1314
# "+AES-256-CBC", "+SHA1",
1315
# "+COMP-NULL", "+CTYPE-OPENPGP",
1316
# "+DHE-DSS"))
2272
1317
# Use a fallback default, since this MUST be set.
2273
1318
priority = self.server.gnutls_priority
2274
1319
if priority is None:
2275
1320
priority = "NORMAL"
2276
gnutls.priority_set_direct(session._c_object,
2277
priority.encode("utf-8"),
2278
None)
2279
1321
(gnutls.library.functions
1322
.gnutls_priority_set_direct(session._c_object,
1323
priority, None))
1324
2280
1325
# Start communication using the Mandos protocol
2281
1326
# Get protocol number
2282
1327
line = self.request.makefile().readline()
2283
1328
logger.debug("Protocol version: %r", line)
2284
1329
try:
2285
1330
if int(line.strip().split()[0]) > 1:
2286
raise RuntimeError(line)
1331
raise RuntimeError
2287
1332
except (ValueError, IndexError, RuntimeError) as error:
2288
1333
logger.error("Unknown protocol version: %s", error)
2289
1334
return
2290
1335
2291
1336
# Start GnuTLS connection
2292
1337
try:
2293
1338
session.handshake()
2294
except gnutls.Error as error:
1339
except gnutls.errors.GNUTLSError as error:
2295
1340
logger.warning("Handshake failed: %s", error)
2296
1341
# Do not run session.bye() here: the session is not
2297
1342
# established. Just abandon the request.
2298
1343
return
2299
1344
logger.debug("Handshake succeeded")
2300
1345
2301
1346
approval_required = False
2302
1347
try:
2303
if gnutls.has_rawpk:
2304
fpr = b""
2305
try:
2306
key_id = self.key_id(
2307
self.peer_certificate(session))
2308
except (TypeError, gnutls.Error) as error:
2309
logger.warning("Bad certificate: %s", error)
2310
return
2311
logger.debug("Key ID: %s", key_id)
2312
2313
else:
2314
key_id = b""
2315
try:
2316
fpr = self.fingerprint(
2317
self.peer_certificate(session))
2318
except (TypeError, gnutls.Error) as error:
2319
logger.warning("Bad certificate: %s", error)
2320
return
2321
logger.debug("Fingerprint: %s", fpr)
2322
2323
try:
2324
client = ProxyClient(child_pipe, key_id, fpr,
1348
try:
1349
fpr = self.fingerprint(self.peer_certificate
1350
(session))
1351
except (TypeError,
1352
gnutls.errors.GNUTLSError) as error:
1353
logger.warning("Bad certificate: %s", error)
1354
return
1355
logger.debug("Fingerprint: %s", fpr)
1356
1357
try:
1358
client = ProxyClient(child_pipe, fpr,
2325
1359
self.client_address)
2326
1360
except KeyError:
2327
1361
return
2328
1362
2329
1363
if client.approval_delay:
2330
1364
delay = client.approval_delay
2331
1365
client.approvals_pending += 1
2332
1366
approval_required = True
2333
1367
2334
1368
while True:
2335
1369
if not client.enabled:
2336
1370
logger.info("Client %s is disabled",
2337
client.name)
1371
client.name)
2338
1372
if self.server.use_dbus:
2339
1373
# Emit D-Bus signal
2340
1374
client.Rejected("Disabled")
2341
1375
return
2342
2343
if client.approved or not client.approval_delay:
2344
# We are approved or approval is disabled
1376
1377
if client._approved or not client.approval_delay:
1378
#We are approved or approval is disabled
2345
1379
break
2346
elif client.approved is None:
1380
elif client._approved is None:
2347
1381
logger.info("Client %s needs approval",
2348
1382
client.name)
2349
1383
if self.server.use_dbus:
2350
1384
# Emit D-Bus signal
2351
1385
client.NeedApproval(
2352
client.approval_delay.total_seconds()
2353
* 1000, client.approved_by_default)
1386
client.approval_delay_milliseconds(),
1387
client.approved_by_default)
2354
1388
else:
2355
1389
logger.warning("Client %s was not approved",
2356
1390
client.name)
2358
1392
# Emit D-Bus signal
2359
1393
client.Rejected("Denied")
2360
1394
return
2361
2362
# wait until timeout or approved
1395
1396
#wait until timeout or approved
1397
#x = float(client
1398
# ._timedelta_to_milliseconds(delay))
2363
1399
time = datetime.datetime.now()
2364
1400
client.changedstate.acquire()
2365
client.changedstate.wait(delay.total_seconds())
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1403
/ 1000)))
2366
1404
client.changedstate.release()
2367
1405
time2 = datetime.datetime.now()
2368
1406
if (time2 - time) >= delay:
2378
1416
break
2379
1417
else:
2380
1418
delay -= time2 - time
2381
2382
try:
2383
session.send(client.secret)
2384
except gnutls.Error as error:
2385
logger.warning("gnutls send failed",
2386
exc_info=error)
2387
return
2388
1419
1420
sent_size = 0
1421
while sent_size < len(client.secret):
1422
try:
1423
sent = session.send(client.secret[sent_size:])
1424
except gnutls.errors.GNUTLSError as error:
1425
logger.warning("gnutls send failed")
1426
return
1427
logger.debug("Sent: %d, remaining: %d",
1428
sent, len(client.secret)
1429
- (sent_size + sent))
1430
sent_size += sent
1431
2389
1432
logger.info("Sending secret to %s", client.name)
2390
# bump the timeout using extended_timeout
2391
client.bump_timeout(client.extended_timeout)
1433
# bump the timeout as if seen
1434
client.checked_ok(client.extended_timeout)
2392
1435
if self.server.use_dbus:
2393
1436
# Emit D-Bus signal
2394
1437
client.GotSecret()
2395
1438
2396
1439
finally:
2397
1440
if approval_required:
2398
1441
client.approvals_pending -= 1
2399
1442
try:
2400
1443
session.bye()
2401
except gnutls.Error as error:
2402
logger.warning("GnuTLS bye failed",
2403
exc_info=error)
2404
1444
except gnutls.errors.GNUTLSError as error:
1445
logger.warning("GnuTLS bye failed")
1446
2405
1447
@staticmethod
2406
1448
def peer_certificate(session):
2407
"Return the peer's certificate as a bytestring"
2408
try:
2409
cert_type = gnutls.certificate_type_get2(session._c_object,
2410
gnutls.CTYPE_PEERS)
2411
except AttributeError:
2412
cert_type = gnutls.certificate_type_get(session._c_object)
2413
if gnutls.has_rawpk:
2414
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2415
else:
2416
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2417
# If not a valid certificate type...
2418
if cert_type not in valid_cert_types:
2419
logger.info("Cert type %r not in %r", cert_type,
2420
valid_cert_types)
2421
# ...return invalid data
2422
return b""
1449
"Return the peer's OpenPGP certificate as a bytestring"
1450
# If not an OpenPGP certificate...
1451
if (gnutls.library.functions
1452
.gnutls_certificate_type_get(session._c_object)
1453
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1454
# ...do the normal thing
1455
return session.peer_certificate
2423
1456
list_size = ctypes.c_uint(1)
2424
cert_list = (gnutls.certificate_get_peers
1457
cert_list = (gnutls.library.functions
1458
.gnutls_certificate_get_peers
2425
1459
(session._c_object, ctypes.byref(list_size)))
2426
1460
if not bool(cert_list) and list_size.value != 0:
2427
raise gnutls.Error("error getting peer certificate")
1461
raise gnutls.errors.GNUTLSError("error getting peer"
1462
" certificate")
2428
1463
if list_size.value == 0:
2429
1464
return None
2430
1465
cert = cert_list[0]
2431
1466
return ctypes.string_at(cert.data, cert.size)
2432
2433
@staticmethod
2434
def key_id(certificate):
2435
"Convert a certificate bytestring to a hexdigit key ID"
2436
# New GnuTLS "datum" with the public key
2437
datum = gnutls.datum_t(
2438
ctypes.cast(ctypes.c_char_p(certificate),
2439
ctypes.POINTER(ctypes.c_ubyte)),
2440
ctypes.c_uint(len(certificate)))
2441
# XXX all these need to be created in the gnutls "module"
2442
# New empty GnuTLS certificate
2443
pubkey = gnutls.pubkey_t()
2444
gnutls.pubkey_init(ctypes.byref(pubkey))
2445
# Import the raw public key into the certificate
2446
gnutls.pubkey_import(pubkey,
2447
ctypes.byref(datum),
2448
gnutls.X509_FMT_DER)
2449
# New buffer for the key ID
2450
buf = ctypes.create_string_buffer(32)
2451
buf_len = ctypes.c_size_t(len(buf))
2452
# Get the key ID from the raw public key into the buffer
2453
gnutls.pubkey_get_key_id(pubkey,
2454
gnutls.KEYID_USE_SHA256,
2455
ctypes.cast(ctypes.byref(buf),
2456
ctypes.POINTER(ctypes.c_ubyte)),
2457
ctypes.byref(buf_len))
2458
# Deinit the certificate
2459
gnutls.pubkey_deinit(pubkey)
2460
2461
# Convert the buffer to a Python bytestring
2462
key_id = ctypes.string_at(buf, buf_len.value)
2463
# Convert the bytestring to hexadecimal notation
2464
hex_key_id = binascii.hexlify(key_id).upper()
2465
return hex_key_id
2466
1467
2467
1468
@staticmethod
2468
1469
def fingerprint(openpgp):
2469
1470
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2470
1471
# New GnuTLS "datum" with the OpenPGP public key
2471
datum = gnutls.datum_t(
2472
ctypes.cast(ctypes.c_char_p(openpgp),
2473
ctypes.POINTER(ctypes.c_ubyte)),
2474
ctypes.c_uint(len(openpgp)))
1472
datum = (gnutls.library.types
1473
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1474
ctypes.POINTER
1475
(ctypes.c_ubyte)),
1476
ctypes.c_uint(len(openpgp))))
2475
1477
# New empty GnuTLS certificate
2476
crt = gnutls.openpgp_crt_t()
2477
gnutls.openpgp_crt_init(ctypes.byref(crt))
1478
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1479
(gnutls.library.functions
1480
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2478
1481
# Import the OpenPGP public key into the certificate
2479
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2480
gnutls.OPENPGP_FMT_RAW)
1482
(gnutls.library.functions
1483
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1484
gnutls.library.constants
1485
.GNUTLS_OPENPGP_FMT_RAW))
2481
1486
# Verify the self signature in the key
2482
1487
crtverify = ctypes.c_uint()
2483
gnutls.openpgp_crt_verify_self(crt, 0,
2484
ctypes.byref(crtverify))
1488
(gnutls.library.functions
1489
.gnutls_openpgp_crt_verify_self(crt, 0,
1490
ctypes.byref(crtverify)))
2485
1491
if crtverify.value != 0:
2486
gnutls.openpgp_crt_deinit(crt)
2487
raise gnutls.CertificateSecurityError(code
2488
=crtverify.value)
1492
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1493
raise (gnutls.errors.CertificateSecurityError
1494
("Verify failed"))
2489
1495
# New buffer for the fingerprint
2490
1496
buf = ctypes.create_string_buffer(20)
2491
1497
buf_len = ctypes.c_size_t()
2492
1498
# Get the fingerprint from the certificate into the buffer
2493
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2494
ctypes.byref(buf_len))
1499
(gnutls.library.functions
1500
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1501
ctypes.byref(buf_len)))
2495
1502
# Deinit the certificate
2496
gnutls.openpgp_crt_deinit(crt)
1503
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2497
1504
# Convert the buffer to a Python bytestring
2498
1505
fpr = ctypes.string_at(buf, buf_len.value)
2499
1506
# Convert the bytestring to hexadecimal notation
2500
hex_fpr = binascii.hexlify(fpr).upper()
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2501
1508
return hex_fpr
2502
1509
2503
1510
2504
class MultiprocessingMixIn:
1511
class MultiprocessingMixIn(object):
2505
1512
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2506
2507
1513
def sub_process_main(self, request, address):
2508
1514
try:
2509
1515
self.finish_request(request, address)
2510
except Exception:
1516
except:
2511
1517
self.handle_error(request, address)
2512
1518
self.close_request(request)
2513
1519
2514
1520
def process_request(self, request, address):
2515
1521
"""Start a new process to process the request."""
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
2518
proc.start()
2519
return proc
2520
2521
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1522
multiprocessing.Process(target = self.sub_process_main,
1523
args = (request, address)).start()
1524
1525
1526
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2523
1527
""" adds a pipe to the MixIn """
2524
2525
1528
def process_request(self, request, client_address):
2526
1529
"""Overrides and wraps the original process_request().
2527
1530
2528
1531
This function creates a new pipe in self.pipe
2529
1532
"""
2530
1533
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2531
2532
proc = MultiprocessingMixIn.process_request(self, request,
2533
client_address)
1534
1535
super(MultiprocessingMixInWithPipe,
1536
self).process_request(request, client_address)
2534
1537
self.child_pipe.close()
2535
self.add_pipe(parent_pipe, proc)
2536
2537
def add_pipe(self, parent_pipe, proc):
1538
self.add_pipe(parent_pipe)
1539
1540
def add_pipe(self, parent_pipe):
2538
1541
"""Dummy function; override as necessary"""
2539
raise NotImplementedError()
1542
raise NotImplementedError
2540
1543
2541
1544
2542
1545
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2543
socketserver.TCPServer):
1546
socketserver.TCPServer, object):
2544
1547
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2545
1548
2546
1549
Attributes:
2547
1550
enabled: Boolean; whether this server is activated yet
2548
1551
interface: None or a network interface name (string)
2549
1552
use_ipv6: Boolean; to use IPv6 or not
2550
1553
"""
2551
2552
1554
def __init__(self, server_address, RequestHandlerClass,
2553
interface=None,
2554
use_ipv6=True,
2555
socketfd=None):
2556
"""If socketfd is set, use that file descriptor instead of
2557
creating a new one with socket.socket().
2558
"""
1555
interface=None, use_ipv6=True):
2559
1556
self.interface = interface
2560
1557
if use_ipv6:
2561
1558
self.address_family = socket.AF_INET6
2562
if socketfd is not None:
2563
# Save the file descriptor
2564
self.socketfd = socketfd
2565
# Save the original socket.socket() function
2566
self.socket_socket = socket.socket
2567
2568
# To implement --socket, we monkey patch socket.socket.
2569
#
2570
# (When socketserver.TCPServer is a new-style class, we
2571
# could make self.socket into a property instead of monkey
2572
# patching socket.socket.)
2573
#
2574
# Create a one-time-only replacement for socket.socket()
2575
@functools.wraps(socket.socket)
2576
def socket_wrapper(*args, **kwargs):
2577
# Restore original function so subsequent calls are
2578
# not affected.
2579
socket.socket = self.socket_socket
2580
del self.socket_socket
2581
# This time only, return a new socket object from the
2582
# saved file descriptor.
2583
return socket.fromfd(self.socketfd, *args, **kwargs)
2584
# Replace socket.socket() function with wrapper
2585
socket.socket = socket_wrapper
2586
# The socketserver.TCPServer.__init__ will call
2587
# socket.socket(), which might be our replacement,
2588
# socket_wrapper(), if socketfd was set.
2589
1559
socketserver.TCPServer.__init__(self, server_address,
2590
1560
RequestHandlerClass)
2591
2592
1561
def server_bind(self):
2593
1562
"""This overrides the normal server_bind() function
2594
1563
to bind to an interface if one was specified, and also NOT to
2595
1564
bind to an address or port if they were not specified."""
2596
global SO_BINDTODEVICE
2597
1565
if self.interface is not None:
2598
1566
if SO_BINDTODEVICE is None:
2599
# Fall back to a hard-coded value which seems to be
2600
# common enough.
2601
logger.warning("SO_BINDTODEVICE not found, trying 25")
2602
SO_BINDTODEVICE = 25
2603
try:
2604
self.socket.setsockopt(
2605
socket.SOL_SOCKET, SO_BINDTODEVICE,
2606
(self.interface + "\0").encode("utf-8"))
2607
except socket.error as error:
2608
if error.errno == errno.EPERM:
2609
logger.error("No permission to bind to"
2610
" interface %s", self.interface)
2611
elif error.errno == errno.ENOPROTOOPT:
2612
logger.error("SO_BINDTODEVICE not available;"
2613
" cannot bind to interface %s",
2614
self.interface)
2615
elif error.errno == errno.ENODEV:
2616
logger.error("Interface %s does not exist,"
2617
" cannot bind", self.interface)
2618
else:
2619
raise
1567
logger.error("SO_BINDTODEVICE does not exist;"
1568
" cannot bind to interface %s",
1569
self.interface)
1570
else:
1571
try:
1572
self.socket.setsockopt(socket.SOL_SOCKET,
1573
SO_BINDTODEVICE,
1574
str(self.interface
1575
+ '\0'))
1576
except socket.error as error:
1577
if error[0] == errno.EPERM:
1578
logger.error("No permission to"
1579
" bind to interface %s",
1580
self.interface)
1581
elif error[0] == errno.ENOPROTOOPT:
1582
logger.error("SO_BINDTODEVICE not available;"
1583
" cannot bind to interface %s",
1584
self.interface)
1585
else:
1586
raise
2620
1587
# Only bind(2) the socket if we really need to.
2621
1588
if self.server_address[0] or self.server_address[1]:
2622
if self.server_address[1]:
2623
self.allow_reuse_address = True
2624
1589
if not self.server_address[0]:
2625
1590
if self.address_family == socket.AF_INET6:
2626
any_address = "::" # in6addr_any
1591
any_address = "::" # in6addr_any
2627
1592
else:
2628
any_address = "0.0.0.0" # INADDR_ANY
1593
any_address = socket.INADDR_ANY
2629
1594
self.server_address = (any_address,
2630
1595
self.server_address[1])
2631
1596
elif not self.server_address[1]:
2632
self.server_address = (self.server_address[0], 0)
1597
self.server_address = (self.server_address[0],
1598
0)
2633
1599
# if self.interface:
2634
1600
# self.server_address = (self.server_address[0],
2635
1601
# 0, # port
2641
1607
2642
1608
class MandosServer(IPv6_TCPServer):
2643
1609
"""Mandos server.
2644
1610
2645
1611
Attributes:
2646
1612
clients: set of Client objects
2647
1613
gnutls_priority GnuTLS priority string
2648
1614
use_dbus: Boolean; to emit D-Bus signals or not
2649
2650
Assumes a GLib.MainLoop event loop.
1615
1616
Assumes a gobject.MainLoop event loop.
2651
1617
"""
2652
2653
1618
def __init__(self, server_address, RequestHandlerClass,
2654
interface=None,
2655
use_ipv6=True,
2656
clients=None,
2657
gnutls_priority=None,
2658
use_dbus=True,
2659
socketfd=None):
1619
interface=None, use_ipv6=True, clients=None,
1620
gnutls_priority=None, use_dbus=True):
2660
1621
self.enabled = False
2661
1622
self.clients = clients
2662
1623
if self.clients is None:
2663
self.clients = {}
1624
self.clients = set()
2664
1625
self.use_dbus = use_dbus
2665
1626
self.gnutls_priority = gnutls_priority
2666
1627
IPv6_TCPServer.__init__(self, server_address,
2667
1628
RequestHandlerClass,
2668
interface=interface,
2669
use_ipv6=use_ipv6,
2670
socketfd=socketfd)
2671
1629
interface = interface,
1630
use_ipv6 = use_ipv6)
2672
1631
def server_activate(self):
2673
1632
if self.enabled:
2674
1633
return socketserver.TCPServer.server_activate(self)
2675
2676
1634
def enable(self):
2677
1635
self.enabled = True
2678
2679
def add_pipe(self, parent_pipe, proc):
1636
def add_pipe(self, parent_pipe):
2680
1637
# Call "handle_ipc" for both data and EOF events
2681
GLib.io_add_watch(
2682
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2683
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2684
functools.partial(self.handle_ipc,
2685
parent_pipe=parent_pipe,
2686
proc=proc))
2687
2688
def handle_ipc(self, source, condition,
2689
parent_pipe=None,
2690
proc=None,
1638
gobject.io_add_watch(parent_pipe.fileno(),
1639
gobject.IO_IN | gobject.IO_HUP,
1640
functools.partial(self.handle_ipc,
1641
parent_pipe =
1642
parent_pipe))
1643
1644
def handle_ipc(self, source, condition, parent_pipe=None,
2691
1645
client_object=None):
2692
# error, or the other end of multiprocessing.Pipe has closed
2693
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2694
# Wait for other process to exit
2695
proc.join()
1646
condition_names = {
1647
gobject.IO_IN: "IN", # There is data to read.
1648
gobject.IO_OUT: "OUT", # Data can be written (without
1649
# blocking).
1650
gobject.IO_PRI: "PRI", # There is urgent data to read.
1651
gobject.IO_ERR: "ERR", # Error condition.
1652
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1653
# broken, usually for pipes and
1654
# sockets).
1655
}
1656
conditions_string = ' | '.join(name
1657
for cond, name in
1658
condition_names.iteritems()
1659
if cond & condition)
1660
# error or the other end of multiprocessing.Pipe has closed
1661
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2696
1662
return False
2697
1663
2698
1664
# Read a request from the child
2699
1665
request = parent_pipe.recv()
2700
1666
command = request[0]
2701
1667
2702
1668
if command == 'init':
2703
key_id = request[1].decode("ascii")
2704
fpr = request[2].decode("ascii")
2705
address = request[3]
2706
2707
for c in self.clients.values():
2708
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2709
continue
2710
if key_id and c.key_id == key_id:
2711
client = c
2712
break
2713
if fpr and c.fingerprint == fpr:
1669
fpr = request[1]
1670
address = request[2]
1671
1672
for c in self.clients:
1673
if c.fingerprint == fpr:
2714
1674
client = c
2715
1675
break
2716
1676
else:
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
1677
logger.info("Client not found for fingerprint: %s, ad"
1678
"dress: %s", fpr, address)
2719
1679
if self.use_dbus:
2720
1680
# Emit D-Bus signal
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
1681
mandos_dbus_service.ClientNotFound(fpr,
2722
1682
address[0])
2723
1683
parent_pipe.send(False)
2724
1684
return False
2725
2726
GLib.io_add_watch(
2727
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2728
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2729
functools.partial(self.handle_ipc,
2730
parent_pipe=parent_pipe,
2731
proc=proc,
2732
client_object=client))
1685
1686
gobject.io_add_watch(parent_pipe.fileno(),
1687
gobject.IO_IN | gobject.IO_HUP,
1688
functools.partial(self.handle_ipc,
1689
parent_pipe =
1690
parent_pipe,
1691
client_object =
1692
client))
2733
1693
parent_pipe.send(True)
2734
1694
# remove the old hook in favor of the new above hook on
2735
1695
# same fileno
2738
1698
funcname = request[1]
2739
1699
args = request[2]
2740
1700
kwargs = request[3]
2741
1701
2742
1702
parent_pipe.send(('data', getattr(client_object,
2743
1703
funcname)(*args,
2744
**kwargs)))
2745
1704
**kwargs)))
1705
2746
1706
if command == 'getattr':
2747
1707
attrname = request[1]
2748
if isinstance(client_object.__getattribute__(attrname),
2749
collections.Callable):
2750
parent_pipe.send(('function', ))
1708
if callable(client_object.__getattribute__(attrname)):
1709
parent_pipe.send(('function',))
2751
1710
else:
2752
parent_pipe.send((
2753
'data', client_object.__getattribute__(attrname)))
2754
1711
parent_pipe.send(('data', client_object
1712
.__getattribute__(attrname)))
1713
2755
1714
if command == 'setattr':
2756
1715
attrname = request[1]
2757
1716
value = request[2]
2758
1717
setattr(client_object, attrname, value)
2759
1718
2760
1719
return True
2761
1720
2762
1721
2763
def rfc3339_duration_to_delta(duration):
2764
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2765
2766
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2767
True
2768
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2771
True
2772
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2773
True
2774
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2775
True
2776
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2777
True
2778
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2779
True
2780
"""
2781
2782
# Parsing an RFC 3339 duration with regular expressions is not
2783
# possible - there would have to be multiple places for the same
2784
# values, like seconds. The current code, while more esoteric, is
2785
# cleaner without depending on a parsing library. If Python had a
2786
# built-in library for parsing we would use it, but we'd like to
2787
# avoid excessive use of external libraries.
2788
2789
# New type for defining tokens, syntax, and semantics all-in-one
2790
Token = collections.namedtuple("Token", (
2791
"regexp", # To match token; if "value" is not None, must have
2792
# a "group" containing digits
2793
"value", # datetime.timedelta or None
2794
"followers")) # Tokens valid after this token
2795
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2796
# the "duration" ABNF definition in RFC 3339, Appendix A.
2797
token_end = Token(re.compile(r"$"), None, frozenset())
2798
token_second = Token(re.compile(r"(\d+)S"),
2799
datetime.timedelta(seconds=1),
2800
frozenset((token_end, )))
2801
token_minute = Token(re.compile(r"(\d+)M"),
2802
datetime.timedelta(minutes=1),
2803
frozenset((token_second, token_end)))
2804
token_hour = Token(re.compile(r"(\d+)H"),
2805
datetime.timedelta(hours=1),
2806
frozenset((token_minute, token_end)))
2807
token_time = Token(re.compile(r"T"),
2808
None,
2809
frozenset((token_hour, token_minute,
2810
token_second)))
2811
token_day = Token(re.compile(r"(\d+)D"),
2812
datetime.timedelta(days=1),
2813
frozenset((token_time, token_end)))
2814
token_month = Token(re.compile(r"(\d+)M"),
2815
datetime.timedelta(weeks=4),
2816
frozenset((token_day, token_end)))
2817
token_year = Token(re.compile(r"(\d+)Y"),
2818
datetime.timedelta(weeks=52),
2819
frozenset((token_month, token_end)))
2820
token_week = Token(re.compile(r"(\d+)W"),
2821
datetime.timedelta(weeks=1),
2822
frozenset((token_end, )))
2823
token_duration = Token(re.compile(r"P"), None,
2824
frozenset((token_year, token_month,
2825
token_day, token_time,
2826
token_week)))
2827
# Define starting values:
2828
# Value so far
2829
value = datetime.timedelta()
2830
found_token = None
2831
# Following valid tokens
2832
followers = frozenset((token_duration, ))
2833
# String left to parse
2834
s = duration
2835
# Loop until end token is found
2836
while found_token is not token_end:
2837
# Search for any currently valid tokens
2838
for token in followers:
2839
match = token.regexp.match(s)
2840
if match is not None:
2841
# Token found
2842
if token.value is not None:
2843
# Value found, parse digits
2844
factor = int(match.group(1), 10)
2845
# Add to value so far
2846
value += factor * token.value
2847
# Strip token from string
2848
s = token.regexp.sub("", s, 1)
2849
# Go to found token
2850
found_token = token
2851
# Set valid next tokens
2852
followers = found_token.followers
2853
break
2854
else:
2855
# No currently valid tokens were found
2856
raise ValueError("Invalid RFC 3339 duration: {!r}"
2857
.format(duration))
2858
# End token found
2859
return value
2860
2861
2862
1722
def string_to_delta(interval):
2863
1723
"""Parse a string and return a datetime.timedelta
2864
2865
>>> string_to_delta('7d') == datetime.timedelta(7)
2866
True
2867
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2868
True
2869
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2870
True
2871
>>> string_to_delta('24h') == datetime.timedelta(1)
2872
True
2873
>>> string_to_delta('1w') == datetime.timedelta(7)
2874
True
2875
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2876
True
1724
1725
>>> string_to_delta('7d')
1726
datetime.timedelta(7)
1727
>>> string_to_delta('60s')
1728
datetime.timedelta(0, 60)
1729
>>> string_to_delta('60m')
1730
datetime.timedelta(0, 3600)
1731
>>> string_to_delta('24h')
1732
datetime.timedelta(1)
1733
>>> string_to_delta('1w')
1734
datetime.timedelta(7)
1735
>>> string_to_delta('5m 30s')
1736
datetime.timedelta(0, 330)
2877
1737
"""
2878
2879
try:
2880
return rfc3339_duration_to_delta(interval)
2881
except ValueError:
2882
pass
2883
2884
1738
timevalue = datetime.timedelta(0)
2885
1739
for s in interval.split():
2886
1740
try:
2887
suffix = s[-1]
1741
suffix = unicode(s[-1])
2888
1742
value = int(s[:-1])
2889
1743
if suffix == "d":
2890
1744
delta = datetime.timedelta(value)
2897
1751
elif suffix == "w":
2898
1752
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2899
1753
else:
2900
raise ValueError("Unknown suffix {!r}".format(suffix))
2901
except IndexError as e:
1754
raise ValueError("Unknown suffix %r" % suffix)
1755
except (ValueError, IndexError) as e:
2902
1756
raise ValueError(*(e.args))
2903
1757
timevalue += delta
2904
1758
return timevalue
2905
1759
2906
1760
2907
def daemon(nochdir=False, noclose=False):
1761
def if_nametoindex(interface):
1762
"""Call the C function if_nametoindex(), or equivalent
1763
1764
Note: This function cannot accept a unicode string."""
1765
global if_nametoindex
1766
try:
1767
if_nametoindex = (ctypes.cdll.LoadLibrary
1768
(ctypes.util.find_library("c"))
1769
.if_nametoindex)
1770
except (OSError, AttributeError):
1771
logger.warning("Doing if_nametoindex the hard way")
1772
def if_nametoindex(interface):
1773
"Get an interface index the hard way, i.e. using fcntl()"
1774
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1775
with contextlib.closing(socket.socket()) as s:
1776
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1777
struct.pack(str("16s16x"),
1778
interface))
1779
interface_index = struct.unpack(str("I"),
1780
ifreq[16:20])[0]
1781
return interface_index
1782
return if_nametoindex(interface)
1783
1784
1785
def daemon(nochdir = False, noclose = False):
2908
1786
"""See daemon(3). Standard BSD Unix function.
2909
1787
2910
1788
This should really exist as os.daemon, but it doesn't (yet)."""
2911
1789
if os.fork():
2912
1790
sys.exit()
2917
1795
sys.exit()
2918
1796
if not noclose:
2919
1797
# Close all standard open file descriptors
2920
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1798
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2921
1799
if not stat.S_ISCHR(os.fstat(null).st_mode):
2922
1800
raise OSError(errno.ENODEV,
2923
"{} not a character device"
2924
.format(os.devnull))
1801
"%s not a character device"
1802
% os.path.devnull)
2925
1803
os.dup2(null, sys.stdin.fileno())
2926
1804
os.dup2(null, sys.stdout.fileno())
2927
1805
os.dup2(null, sys.stderr.fileno())
2930
1808
2931
1809
2932
1810
def main():
2933
1811
2934
1812
##################################################################
2935
1813
# Parsing of options, both command line and config file
2936
1814
2937
1815
parser = argparse.ArgumentParser()
2938
1816
parser.add_argument("-v", "--version", action="version",
2939
version="%(prog)s {}".format(version),
1817
version = "%%(prog)s %s" % version,
2940
1818
help="show version number and exit")
2941
1819
parser.add_argument("-i", "--interface", metavar="IF",
2942
1820
help="Bind to interface IF")
2948
1826
help="Run self-test")
2949
1827
parser.add_argument("--debug", action="store_true",
2950
1828
help="Debug mode; run in foreground and log"
2951
" to terminal", default=None)
1829
" to terminal")
2952
1830
parser.add_argument("--debuglevel", metavar="LEVEL",
2953
1831
help="Debug level for stdout output")
2954
1832
parser.add_argument("--priority", help="GnuTLS"
2961
1839
" files")
2962
1840
parser.add_argument("--no-dbus", action="store_false",
2963
1841
dest="use_dbus", help="Do not provide D-Bus"
2964
" system bus interface", default=None)
1842
" system bus interface")
2965
1843
parser.add_argument("--no-ipv6", action="store_false",
2966
dest="use_ipv6", help="Do not use IPv6",
2967
default=None)
2968
parser.add_argument("--no-restore", action="store_false",
2969
dest="restore", help="Do not restore stored"
2970
" state", default=None)
2971
parser.add_argument("--socket", type=int,
2972
help="Specify a file descriptor to a network"
2973
" socket to use instead of creating one")
2974
parser.add_argument("--statedir", metavar="DIR",
2975
help="Directory to save/restore state in")
2976
parser.add_argument("--foreground", action="store_true",
2977
help="Run in foreground", default=None)
2978
parser.add_argument("--no-zeroconf", action="store_false",
2979
dest="zeroconf", help="Do not use Zeroconf",
2980
default=None)
2981
1844
dest="use_ipv6", help="Do not use IPv6")
2982
1845
options = parser.parse_args()
2983
1846
1847
if options.check:
1848
import doctest
1849
doctest.testmod()
1850
sys.exit()
1851
2984
1852
# Default values for config file for server-global settings
2985
if gnutls.has_rawpk:
2986
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2987
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2988
else:
2989
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2990
":+SIGN-DSA-SHA256")
2991
server_defaults = {"interface": "",
2992
"address": "",
2993
"port": "",
2994
"debug": "False",
2995
"priority": priority,
2996
"servicename": "Mandos",
2997
"use_dbus": "True",
2998
"use_ipv6": "True",
2999
"debuglevel": "",
3000
"restore": "True",
3001
"socket": "",
3002
"statedir": "/var/lib/mandos",
3003
"foreground": "False",
3004
"zeroconf": "True",
3005
}
3006
del priority
3007
1853
server_defaults = { "interface": "",
1854
"address": "",
1855
"port": "",
1856
"debug": "False",
1857
"priority":
1858
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1859
"servicename": "Mandos",
1860
"use_dbus": "True",
1861
"use_ipv6": "True",
1862
"debuglevel": "",
1863
}
1864
3008
1865
# Parse config file for server-global settings
3009
server_config = configparser.ConfigParser(server_defaults)
1866
server_config = configparser.SafeConfigParser(server_defaults)
3010
1867
del server_defaults
3011
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3012
# Convert the ConfigParser object to a dict
1868
server_config.read(os.path.join(options.configdir,
1869
"mandos.conf"))
1870
# Convert the SafeConfigParser object to a dict
3013
1871
server_settings = server_config.defaults()
3014
1872
# Use the appropriate methods on the non-string config options
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
1873
for option in ("debug", "use_dbus", "use_ipv6"):
3017
1874
server_settings[option] = server_config.getboolean("DEFAULT",
3018
1875
option)
3019
1876
if server_settings["port"]:
3020
1877
server_settings["port"] = server_config.getint("DEFAULT",
3021
1878
"port")
3022
if server_settings["socket"]:
3023
server_settings["socket"] = server_config.getint("DEFAULT",
3024
"socket")
3025
# Later, stdin will, and stdout and stderr might, be dup'ed
3026
# over with an opened os.devnull. But we don't want this to
3027
# happen with a supplied network socket.
3028
if 0 <= server_settings["socket"] <= 2:
3029
server_settings["socket"] = os.dup(server_settings
3030
["socket"])
3031
1879
del server_config
3032
1880
3033
1881
# Override the settings from the config file with command line
3034
1882
# options, if set.
3035
1883
for option in ("interface", "address", "port", "debug",
3036
"priority", "servicename", "configdir", "use_dbus",
3037
"use_ipv6", "debuglevel", "restore", "statedir",
3038
"socket", "foreground", "zeroconf"):
1884
"priority", "servicename", "configdir",
1885
"use_dbus", "use_ipv6", "debuglevel"):
3039
1886
value = getattr(options, option)
3040
1887
if value is not None:
3041
1888
server_settings[option] = value
3042
1889
del options
3043
1890
# Force all strings to be unicode
3044
1891
for option in server_settings.keys():
3045
if isinstance(server_settings[option], bytes):
3046
server_settings[option] = (server_settings[option]
3047
.decode("utf-8"))
3048
# Force all boolean options to be boolean
3049
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3050
"foreground", "zeroconf"):
3051
server_settings[option] = bool(server_settings[option])
3052
# Debug implies foreground
3053
if server_settings["debug"]:
3054
server_settings["foreground"] = True
1892
if type(server_settings[option]) is str:
1893
server_settings[option] = unicode(server_settings[option])
3055
1894
# Now we have our good server settings in "server_settings"
3056
1895
3057
1896
##################################################################
3058
3059
if (not server_settings["zeroconf"]
3060
and not (server_settings["port"]
3061
or server_settings["socket"] != "")):
3062
parser.error("Needs port or socket to work without Zeroconf")
3063
1897
3064
1898
# For convenience
3065
1899
debug = server_settings["debug"]
3066
1900
debuglevel = server_settings["debuglevel"]
3067
1901
use_dbus = server_settings["use_dbus"]
3068
1902
use_ipv6 = server_settings["use_ipv6"]
3069
stored_state_path = os.path.join(server_settings["statedir"],
3070
stored_state_file)
3071
foreground = server_settings["foreground"]
3072
zeroconf = server_settings["zeroconf"]
3073
3074
if debug:
3075
initlogger(debug, logging.DEBUG)
3076
else:
3077
if not debuglevel:
3078
initlogger(debug)
3079
else:
3080
level = getattr(logging, debuglevel.upper())
3081
initlogger(debug, level)
3082
1903
3083
1904
if server_settings["servicename"] != "Mandos":
3084
syslogger.setFormatter(
3085
logging.Formatter('Mandos ({}) [%(process)d]:'
3086
' %(levelname)s: %(message)s'.format(
3087
server_settings["servicename"])))
3088
1905
syslogger.setFormatter(logging.Formatter
1906
('Mandos (%s) [%%(process)d]:'
1907
' %%(levelname)s: %%(message)s'
1908
% server_settings["servicename"]))
1909
3089
1910
# Parse config file with clients
3090
client_config = configparser.ConfigParser(Client.client_defaults)
1911
client_defaults = { "timeout": "5m",
1912
"extended_timeout": "15m",
1913
"interval": "2m",
1914
"checker": "fping -q -- %%(host)s",
1915
"host": "",
1916
"approval_delay": "0s",
1917
"approval_duration": "1s",
1918
}
1919
client_config = configparser.SafeConfigParser(client_defaults)
3091
1920
client_config.read(os.path.join(server_settings["configdir"],
3092
1921
"clients.conf"))
3093
1922
3094
1923
global mandos_dbus_service
3095
1924
mandos_dbus_service = None
3096
3097
socketfd = None
3098
if server_settings["socket"] != "":
3099
socketfd = server_settings["socket"]
3100
tcp_server = MandosServer(
3101
(server_settings["address"], server_settings["port"]),
3102
ClientHandler,
3103
interface=(server_settings["interface"] or None),
3104
use_ipv6=use_ipv6,
3105
gnutls_priority=server_settings["priority"],
3106
use_dbus=use_dbus,
3107
socketfd=socketfd)
3108
if not foreground:
3109
pidfilename = "/run/mandos.pid"
3110
if not os.path.isdir("/run/."):
3111
pidfilename = "/var/run/mandos.pid"
3112
pidfile = None
3113
try:
3114
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3115
except IOError as e:
3116
logger.error("Could not open file %r", pidfilename,
3117
exc_info=e)
3118
3119
for name, group in (("_mandos", "_mandos"),
3120
("mandos", "mandos"),
3121
("nobody", "nogroup")):
3122
try:
3123
uid = pwd.getpwnam(name).pw_uid
3124
gid = pwd.getpwnam(group).pw_gid
3125
break
1925
1926
tcp_server = MandosServer((server_settings["address"],
1927
server_settings["port"]),
1928
ClientHandler,
1929
interface=(server_settings["interface"]
1930
or None),
1931
use_ipv6=use_ipv6,
1932
gnutls_priority=
1933
server_settings["priority"],
1934
use_dbus=use_dbus)
1935
if not debug:
1936
pidfilename = "/var/run/mandos.pid"
1937
try:
1938
pidfile = open(pidfilename, "w")
1939
except IOError:
1940
logger.error("Could not open file %r", pidfilename)
1941
1942
try:
1943
uid = pwd.getpwnam("_mandos").pw_uid
1944
gid = pwd.getpwnam("_mandos").pw_gid
1945
except KeyError:
1946
try:
1947
uid = pwd.getpwnam("mandos").pw_uid
1948
gid = pwd.getpwnam("mandos").pw_gid
3126
1949
except KeyError:
3127
continue
3128
else:
3129
uid = 65534
3130
gid = 65534
1950
try:
1951
uid = pwd.getpwnam("nobody").pw_uid
1952
gid = pwd.getpwnam("nobody").pw_gid
1953
except KeyError:
1954
uid = 65534
1955
gid = 65534
3131
1956
try:
3132
1957
os.setgid(gid)
3133
1958
os.setuid(uid)
3134
if debug:
3135
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3136
gid))
3137
1959
except OSError as error:
3138
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3139
.format(uid, gid, os.strerror(error.errno)))
3140
if error.errno != errno.EPERM:
3141
raise
3142
1960
if error[0] != errno.EPERM:
1961
raise error
1962
1963
if not debug and not debuglevel:
1964
syslogger.setLevel(logging.WARNING)
1965
console.setLevel(logging.WARNING)
1966
if debuglevel:
1967
level = getattr(logging, debuglevel.upper())
1968
syslogger.setLevel(level)
1969
console.setLevel(level)
1970
3143
1971
if debug:
3144
1972
# Enable all possible GnuTLS debugging
3145
1973
3146
1974
# "Use a log level over 10 to enable all debugging options."
3147
1975
# - GnuTLS manual
3148
gnutls.global_set_log_level(11)
3149
3150
@gnutls.log_func
1976
gnutls.library.functions.gnutls_global_set_log_level(11)
1977
1978
@gnutls.library.types.gnutls_log_func
3151
1979
def debug_gnutls(level, string):
3152
1980
logger.debug("GnuTLS: %s", string[:-1])
3153
3154
gnutls.global_set_log_function(debug_gnutls)
3155
1981
1982
(gnutls.library.functions
1983
.gnutls_global_set_log_function(debug_gnutls))
1984
3156
1985
# Redirect stdin so all checkers get /dev/null
3157
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1986
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3158
1987
os.dup2(null, sys.stdin.fileno())
3159
1988
if null > 2:
3160
1989
os.close(null)
3161
1990
else:
1991
# No console logging
1992
logger.removeHandler(console)
1993
3162
1994
# Need to fork before connecting to D-Bus
3163
if not foreground:
1995
if not debug:
3164
1996
# Close all input and output, do double fork, etc.
3165
1997
daemon()
3166
3167
if gi.version_info < (3, 10, 2):
3168
# multiprocessing will use threads, so before we use GLib we
3169
# need to inform GLib that threads will be used.
3170
GLib.threads_init()
3171
1998
3172
1999
global main_loop
3173
2000
# From the Avahi example code
3174
DBusGMainLoop(set_as_default=True)
3175
main_loop = GLib.MainLoop()
2001
DBusGMainLoop(set_as_default=True )
2002
main_loop = gobject.MainLoop()
3176
2003
bus = dbus.SystemBus()
3177
2004
# End of Avahi example code
3178
2005
if use_dbus:
3179
2006
try:
3180
2007
bus_name = dbus.service.BusName("se.recompile.Mandos",
3181
bus,
3182
do_not_queue=True)
3183
old_bus_name = dbus.service.BusName(
3184
"se.bsnet.fukt.Mandos", bus,
3185
do_not_queue=True)
3186
except dbus.exceptions.DBusException as e:
3187
logger.error("Disabling D-Bus:", exc_info=e)
2008
bus, do_not_queue=True)
2009
old_bus_name = (dbus.service.BusName
2010
("se.bsnet.fukt.Mandos", bus,
2011
do_not_queue=True))
2012
except dbus.exceptions.NameExistsException as e:
2013
logger.error(unicode(e) + ", disabling D-Bus")
3188
2014
use_dbus = False
3189
2015
server_settings["use_dbus"] = False
3190
2016
tcp_server.use_dbus = False
3191
if zeroconf:
3192
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3193
service = AvahiServiceToSyslog(
3194
name=server_settings["servicename"],
3195
servicetype="_mandos._tcp",
3196
protocol=protocol,
3197
bus=bus)
3198
if server_settings["interface"]:
3199
service.interface = if_nametoindex(
3200
server_settings["interface"].encode("utf-8"))
3201
2017
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2018
service = AvahiService(name = server_settings["servicename"],
2019
servicetype = "_mandos._tcp",
2020
protocol = protocol, bus = bus)
2021
if server_settings["interface"]:
2022
service.interface = (if_nametoindex
2023
(str(server_settings["interface"])))
2024
3202
2025
global multiprocessing_manager
3203
2026
multiprocessing_manager = multiprocessing.Manager()
3204
2027
3205
2028
client_class = Client
3206
2029
if use_dbus:
3207
client_class = functools.partial(ClientDBus, bus=bus)
3208
3209
client_settings = Client.config_parser(client_config)
3210
old_client_settings = {}
3211
clients_data = {}
3212
3213
# This is used to redirect stdout and stderr for checker processes
3214
global wnull
3215
wnull = open(os.devnull, "w") # A writable /dev/null
3216
# Only used if server is running in foreground but not in debug
3217
# mode
3218
if debug or not foreground:
3219
wnull.close()
3220
3221
# Get client data and settings from last running state.
3222
if server_settings["restore"]:
3223
try:
3224
with open(stored_state_path, "rb") as stored_state:
3225
if sys.version_info.major == 2:
3226
clients_data, old_client_settings = pickle.load(
3227
stored_state)
3228
else:
3229
bytes_clients_data, bytes_old_client_settings = (
3230
pickle.load(stored_state, encoding="bytes"))
3231
# Fix bytes to strings
3232
# clients_data
3233
# .keys()
3234
clients_data = {(key.decode("utf-8")
3235
if isinstance(key, bytes)
3236
else key): value
3237
for key, value in
3238
bytes_clients_data.items()}
3239
del bytes_clients_data
3240
for key in clients_data:
3241
value = {(k.decode("utf-8")
3242
if isinstance(k, bytes) else k): v
3243
for k, v in
3244
clients_data[key].items()}
3245
clients_data[key] = value
3246
# .client_structure
3247
value["client_structure"] = [
3248
(s.decode("utf-8")
3249
if isinstance(s, bytes)
3250
else s) for s in
3251
value["client_structure"]]
3252
# .name, .host, and .checker_command
3253
for k in ("name", "host", "checker_command"):
3254
if isinstance(value[k], bytes):
3255
value[k] = value[k].decode("utf-8")
3256
if "key_id" not in value:
3257
value["key_id"] = ""
3258
elif "fingerprint" not in value:
3259
value["fingerprint"] = ""
3260
# old_client_settings
3261
# .keys()
3262
old_client_settings = {
3263
(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_old_client_settings.items()}
3268
del bytes_old_client_settings
3269
# .host and .checker_command
3270
for value in old_client_settings.values():
3271
for attribute in ("host", "checker_command"):
3272
if isinstance(value[attribute], bytes):
3273
value[attribute] = (value[attribute]
3274
.decode("utf-8"))
3275
os.remove(stored_state_path)
3276
except IOError as e:
3277
if e.errno == errno.ENOENT:
3278
logger.warning("Could not load persistent state:"
3279
" {}".format(os.strerror(e.errno)))
3280
else:
3281
logger.critical("Could not load persistent state:",
3282
exc_info=e)
3283
raise
3284
except EOFError as e:
3285
logger.warning("Could not load persistent state: "
3286
"EOFError:",
3287
exc_info=e)
3288
3289
with PGPEngine() as pgp:
3290
for client_name, client in clients_data.items():
3291
# Skip removed clients
3292
if client_name not in client_settings:
3293
continue
3294
3295
# Decide which value to use after restoring saved state.
3296
# We have three different values: Old config file,
3297
# new config file, and saved state.
3298
# New config value takes precedence if it differs from old
3299
# config value, otherwise use saved state.
3300
for name, value in client_settings[client_name].items():
3301
try:
3302
# For each value in new config, check if it
3303
# differs from the old config value (Except for
3304
# the "secret" attribute)
3305
if (name != "secret"
3306
and (value !=
3307
old_client_settings[client_name][name])):
3308
client[name] = value
3309
except KeyError:
3310
pass
3311
3312
# Clients who has passed its expire date can still be
3313
# enabled if its last checker was successful. A Client
3314
# whose checker succeeded before we stored its state is
3315
# assumed to have successfully run all checkers during
3316
# downtime.
3317
if client["enabled"]:
3318
if datetime.datetime.utcnow() >= client["expires"]:
3319
if not client["last_checked_ok"]:
3320
logger.warning(
3321
"disabling client {} - Client never "
3322
"performed a successful checker".format(
3323
client_name))
3324
client["enabled"] = False
3325
elif client["last_checker_status"] != 0:
3326
logger.warning(
3327
"disabling client {} - Client last"
3328
" checker failed with error code"
3329
" {}".format(
3330
client_name,
3331
client["last_checker_status"]))
3332
client["enabled"] = False
3333
else:
3334
client["expires"] = (
3335
datetime.datetime.utcnow()
3336
+ client["timeout"])
3337
logger.debug("Last checker succeeded,"
3338
" keeping {} enabled".format(
3339
client_name))
2030
client_class = functools.partial(ClientDBusTransitional,
2031
bus = bus)
2032
def client_config_items(config, section):
2033
special_settings = {
2034
"approved_by_default":
2035
lambda: config.getboolean(section,
2036
"approved_by_default"),
2037
}
2038
for name, value in config.items(section):
3340
2039
try:
3341
client["secret"] = pgp.decrypt(
3342
client["encrypted_secret"],
3343
client_settings[client_name]["secret"])
3344
except PGPError:
3345
# If decryption fails, we use secret from new settings
3346
logger.debug("Failed to decrypt {} old secret".format(
3347
client_name))
3348
client["secret"] = (client_settings[client_name]
3349
["secret"])
3350
3351
# Add/remove clients based on new changes made to config
3352
for client_name in (set(old_client_settings)
3353
- set(client_settings)):
3354
del clients_data[client_name]
3355
for client_name in (set(client_settings)
3356
- set(old_client_settings)):
3357
clients_data[client_name] = client_settings[client_name]
3358
3359
# Create all client objects
3360
for client_name, client in clients_data.items():
3361
tcp_server.clients[client_name] = client_class(
3362
name=client_name,
3363
settings=client,
3364
server_settings=server_settings)
3365
2040
yield (name, special_settings[name]())
2041
except KeyError:
2042
yield (name, value)
2043
2044
tcp_server.clients.update(set(
2045
client_class(name = section,
2046
config= dict(client_config_items(
2047
client_config, section)))
2048
for section in client_config.sections()))
3366
2049
if not tcp_server.clients:
3367
2050
logger.warning("No clients defined")
3368
3369
if not foreground:
3370
if pidfile is not None:
3371
pid = os.getpid()
3372
try:
3373
with pidfile:
3374
print(pid, file=pidfile)
3375
except IOError:
3376
logger.error("Could not write to file %r with PID %d",
3377
pidfilename, pid)
3378
del pidfile
2051
2052
if not debug:
2053
try:
2054
with pidfile:
2055
pid = os.getpid()
2056
pidfile.write(str(pid) + "\n".encode("utf-8"))
2057
del pidfile
2058
except IOError:
2059
logger.error("Could not write to file %r with PID %d",
2060
pidfilename, pid)
2061
except NameError:
2062
# "pidfile" was never created
2063
pass
3379
2064
del pidfilename
3380
3381
for termsig in (signal.SIGHUP, signal.SIGTERM):
3382
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3383
lambda: main_loop.quit() and False)
3384
2065
2066
signal.signal(signal.SIGINT, signal.SIG_IGN)
2067
2068
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2069
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2070
3385
2071
if use_dbus:
3386
3387
@alternate_dbus_interfaces(
3388
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3389
class MandosDBusService(DBusObjectWithObjectManager):
2072
class MandosDBusService(dbus.service.Object):
3390
2073
"""A D-Bus proxy object"""
3391
3392
2074
def __init__(self):
3393
2075
dbus.service.Object.__init__(self, bus, "/")
3394
3395
2076
_interface = "se.recompile.Mandos"
3396
2077
3397
2078
@dbus.service.signal(_interface, signature="o")
3398
2079
def ClientAdded(self, objpath):
3399
2080
"D-Bus signal"
3400
2081
pass
3401
2082
3402
2083
@dbus.service.signal(_interface, signature="ss")
3403
def ClientNotFound(self, key_id, address):
2084
def ClientNotFound(self, fingerprint, address):
3404
2085
"D-Bus signal"
3405
2086
pass
3406
3407
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3408
"true"})
2087
3409
2088
@dbus.service.signal(_interface, signature="os")
3410
2089
def ClientRemoved(self, objpath, name):
3411
2090
"D-Bus signal"
3412
2091
pass
3413
3414
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3415
"true"})
2092
3416
2093
@dbus.service.method(_interface, out_signature="ao")
3417
2094
def GetAllClients(self):
3418
2095
"D-Bus method"
3419
return dbus.Array(c.dbus_object_path for c in
3420
tcp_server.clients.values())
3421
3422
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3423
"true"})
2096
return dbus.Array(c.dbus_object_path
2097
for c in tcp_server.clients)
2098
3424
2099
@dbus.service.method(_interface,
3425
2100
out_signature="a{oa{sv}}")
3426
2101
def GetAllClientsWithProperties(self):
3427
2102
"D-Bus method"
3428
2103
return dbus.Dictionary(
3429
{c.dbus_object_path: c.GetAll(
3430
"se.recompile.Mandos.Client")
3431
for c in tcp_server.clients.values()},
2104
((c.dbus_object_path, c.GetAll(""))
2105
for c in tcp_server.clients),
3432
2106
signature="oa{sv}")
3433
2107
3434
2108
@dbus.service.method(_interface, in_signature="o")
3435
2109
def RemoveClient(self, object_path):
3436
2110
"D-Bus method"
3437
for c in tcp_server.clients.values():
2111
for c in tcp_server.clients:
3438
2112
if c.dbus_object_path == object_path:
3439
del tcp_server.clients[c.name]
2113
tcp_server.clients.remove(c)
3440
2114
c.remove_from_connection()
3441
# Don't signal the disabling
2115
# Don't signal anything except ClientRemoved
3442
2116
c.disable(quiet=True)
3443
# Emit D-Bus signal for removal
3444
self.client_removed_signal(c)
2117
# Emit D-Bus signal
2118
self.ClientRemoved(object_path, c.name)
3445
2119
return
3446
2120
raise KeyError(object_path)
3447
2121
3448
2122
del _interface
3449
3450
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3451
out_signature="a{oa{sa{sv}}}")
3452
def GetManagedObjects(self):
3453
"""D-Bus method"""
3454
return dbus.Dictionary(
3455
{client.dbus_object_path:
3456
dbus.Dictionary(
3457
{interface: client.GetAll(interface)
3458
for interface in
3459
client._get_all_interface_names()})
3460
for client in tcp_server.clients.values()})
3461
3462
def client_added_signal(self, client):
3463
"""Send the new standard signal and the old signal"""
3464
if use_dbus:
3465
# New standard signal
3466
self.InterfacesAdded(
3467
client.dbus_object_path,
3468
dbus.Dictionary(
3469
{interface: client.GetAll(interface)
3470
for interface in
3471
client._get_all_interface_names()}))
3472
# Old signal
3473
self.ClientAdded(client.dbus_object_path)
3474
3475
def client_removed_signal(self, client):
3476
"""Send the new standard signal and the old signal"""
3477
if use_dbus:
3478
# New standard signal
3479
self.InterfacesRemoved(
3480
client.dbus_object_path,
3481
client._get_all_interface_names())
3482
# Old signal
3483
self.ClientRemoved(client.dbus_object_path,
3484
client.name)
3485
3486
mandos_dbus_service = MandosDBusService()
3487
3488
# Save modules to variables to exempt the modules from being
3489
# unloaded before the function registered with atexit() is run.
3490
mp = multiprocessing
3491
wn = wnull
3492
2123
2124
class MandosDBusServiceTransitional(MandosDBusService):
2125
__metaclass__ = AlternateDBusNamesMetaclass
2126
mandos_dbus_service = MandosDBusServiceTransitional()
2127
3493
2128
def cleanup():
3494
2129
"Cleanup function; run on exit"
3495
if zeroconf:
3496
service.cleanup()
3497
3498
mp.active_children()
3499
wn.close()
3500
if not (tcp_server.clients or client_settings):
3501
return
3502
3503
# Store client before exiting. Secrets are encrypted with key
3504
# based on what config file has. If config file is
3505
# removed/edited, old secret will thus be unrecovable.
3506
clients = {}
3507
with PGPEngine() as pgp:
3508
for client in tcp_server.clients.values():
3509
key = client_settings[client.name]["secret"]
3510
client.encrypted_secret = pgp.encrypt(client.secret,
3511
key)
3512
client_dict = {}
3513
3514
# A list of attributes that can not be pickled
3515
# + secret.
3516
exclude = {"bus", "changedstate", "secret",
3517
"checker", "server_settings"}
3518
for name, typ in inspect.getmembers(dbus.service
3519
.Object):
3520
exclude.add(name)
3521
3522
client_dict["encrypted_secret"] = (client
3523
.encrypted_secret)
3524
for attr in client.client_structure:
3525
if attr not in exclude:
3526
client_dict[attr] = getattr(client, attr)
3527
3528
clients[client.name] = client_dict
3529
del client_settings[client.name]["secret"]
3530
3531
try:
3532
with tempfile.NamedTemporaryFile(
3533
mode='wb',
3534
suffix=".pickle",
3535
prefix='clients-',
3536
dir=os.path.dirname(stored_state_path),
3537
delete=False) as stored_state:
3538
pickle.dump((clients, client_settings), stored_state,
3539
protocol=2)
3540
tempname = stored_state.name
3541
os.rename(tempname, stored_state_path)
3542
except (IOError, OSError) as e:
3543
if not debug:
3544
try:
3545
os.remove(tempname)
3546
except NameError:
3547
pass
3548
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3549
logger.warning("Could not save persistent state: {}"
3550
.format(os.strerror(e.errno)))
3551
else:
3552
logger.warning("Could not save persistent state:",
3553
exc_info=e)
3554
raise
3555
3556
# Delete all clients, and settings from config
2130
service.cleanup()
2131
3557
2132
while tcp_server.clients:
3558
name, client = tcp_server.clients.popitem()
2133
client = tcp_server.clients.pop()
3559
2134
if use_dbus:
3560
2135
client.remove_from_connection()
3561
# Don't signal the disabling
2136
client.disable_hook = None
2137
# Don't signal anything except ClientRemoved
3562
2138
client.disable(quiet=True)
3563
# Emit D-Bus signal for removal
3564
2139
if use_dbus:
3565
mandos_dbus_service.client_removed_signal(client)
3566
client_settings.clear()
3567
2140
# Emit D-Bus signal
2141
mandos_dbus_service.ClientRemoved(client
2142
.dbus_object_path,
2143
client.name)
2144
3568
2145
atexit.register(cleanup)
3569
3570
for client in tcp_server.clients.values():
2146
2147
for client in tcp_server.clients:
3571
2148
if use_dbus:
3572
# Emit D-Bus signal for adding
3573
mandos_dbus_service.client_added_signal(client)
3574
# Need to initiate checking of clients
3575
if client.enabled:
3576
client.init_checker()
3577
2149
# Emit D-Bus signal
2150
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2151
client.enable()
2152
3578
2153
tcp_server.enable()
3579
2154
tcp_server.server_activate()
3580
2155
3581
2156
# Find out what port we got
3582
if zeroconf:
3583
service.port = tcp_server.socket.getsockname()[1]
2157
service.port = tcp_server.socket.getsockname()[1]
3584
2158
if use_ipv6:
3585
2159
logger.info("Now listening on address %r, port %d,"
3586
" flowinfo %d, scope_id %d",
3587
*tcp_server.socket.getsockname())
2160
" flowinfo %d, scope_id %d"
2161
% tcp_server.socket.getsockname())
3588
2162
else: # IPv4
3589
logger.info("Now listening on address %r, port %d",
3590
*tcp_server.socket.getsockname())
3591
3592
# service.interface = tcp_server.socket.getsockname()[3]
3593
2163
logger.info("Now listening on address %r, port %d"
2164
% tcp_server.socket.getsockname())
2165
2166
#service.interface = tcp_server.socket.getsockname()[3]
2167
3594
2168
try:
3595
if zeroconf:
3596
# From the Avahi example code
3597
try:
3598
service.activate()
3599
except dbus.exceptions.DBusException as error:
3600
logger.critical("D-Bus Exception", exc_info=error)
3601
cleanup()
3602
sys.exit(1)
3603
# End of Avahi example code
3604
3605
GLib.io_add_watch(
3606
GLib.IOChannel.unix_new(tcp_server.fileno()),
3607
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3608
lambda *args, **kwargs: (tcp_server.handle_request
3609
(*args[2:], **kwargs) or True))
3610
2169
# From the Avahi example code
2170
try:
2171
service.activate()
2172
except dbus.exceptions.DBusException as error:
2173
logger.critical("DBusException: %s", error)
2174
cleanup()
2175
sys.exit(1)
2176
# End of Avahi example code
2177
2178
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2179
lambda *args, **kwargs:
2180
(tcp_server.handle_request
2181
(*args[2:], **kwargs) or True))
2182
3611
2183
logger.debug("Starting main loop")
3612
2184
main_loop.run()
3613
2185
except AvahiError as error:
3614
logger.critical("Avahi Error", exc_info=error)
2186
logger.critical("AvahiError: %s", error)
3615
2187
cleanup()
3616
2188
sys.exit(1)
3617
2189
except KeyboardInterrupt:
3622
2194
# Must run before the D-Bus bus name gets deregistered
3623
2195
cleanup()
3624
2196
3625
3626
def should_only_run_tests():
3627
parser = argparse.ArgumentParser(add_help=False)
3628
parser.add_argument("--check", action='store_true')
3629
args, unknown_args = parser.parse_known_args()
3630
run_tests = args.check
3631
if run_tests:
3632
# Remove --check argument from sys.argv
3633
sys.argv[1:] = unknown_args
3634
return run_tests
3635
3636
# Add all tests from doctest strings
3637
def load_tests(loader, tests, none):
3638
import doctest
3639
tests.addTests(doctest.DocTestSuite())
3640
return tests
3641
2197
3642
2198
if __name__ == '__main__':
3643
try:
3644
if should_only_run_tests():
3645
# Call using ./mandos --check [--verbose]
3646
unittest.main()
3647
else:
3648
main()
3649
finally:
3650
logging.shutdown()
2199
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0