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- Committer: Teddy Hogeborn
- Date: 2011-11-24 20:15:24 UTC
- mto: (505.2.8 mandos-client-network-hooks)
- mto: This revision was merged to the branch mainline in revision 525.
- Revision ID: teddy@recompile.se-20111124201524-5w9ovzpuw3drdlgf
* network-hooks.d: New directory.
* network-hooks.d/bridge: New example hook.
* network-hooks.d/bridge.conf: Config file for bridge example hook.
* network-hooks.d/bridge: New example hook.
* network-hooks.d/bridge.conf: Config file for bridge example hook.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- 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 © 2008-2020 Teddy Hogeborn
15
# Copyright © 2008-2020 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 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
import random
82
import shlex
83
66
84
67
import dbus
85
68
import dbus.service
86
import gi
87
from gi.repository import GLib
69
import gobject
70
import avahi
88
71
from dbus.mainloop.glib import DBusGMainLoop
89
72
import ctypes
90
73
import ctypes.util
91
74
import xml.dom.minidom
92
75
import inspect
93
76
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
77
try:
122
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
79
except AttributeError:
124
80
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
127
81
from IN import SO_BINDTODEVICE
128
82
except ImportError:
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.14"
147
stored_state_file = "clients.pickle"
148
149
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
152
153
try:
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
156
except (OSError, AttributeError):
157
158
def if_nametoindex(interface):
159
"Get an interface index the hard way, i.e. using fcntl()"
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
161
with contextlib.closing(socket.socket()) as s:
162
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
165
return interface_index
166
167
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
184
def initlogger(debug, level=logging.WARNING):
185
"""init logger and add loglevel"""
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
191
syslogger.setFormatter(logging.Formatter
192
('Mandos [%(process)d]: %(levelname)s:'
193
' %(message)s'))
194
logger.addHandler(syslogger)
195
196
if debug:
197
console = logging.StreamHandler()
198
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
199
' [%(process)d]:'
200
' %(levelname)s:'
201
' %(message)s'))
202
logger.addHandler(console)
203
logger.setLevel(level)
204
205
206
class PGPError(Exception):
207
"""Exception if encryption/decryption fails"""
208
pass
209
210
211
class PGPEngine:
212
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
214
def __init__(self):
215
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ['--batch',
228
'--homedir', self.tempdir,
229
'--force-mdc',
230
'--quiet']
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
235
def __enter__(self):
236
return self
237
238
def __exit__(self, exc_type, exc_value, traceback):
239
self._cleanup()
240
return False
241
242
def __del__(self):
243
self._cleanup()
244
245
def _cleanup(self):
246
if self.tempdir is not None:
247
# Delete contents of tempdir
248
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
250
for filename in files:
251
os.remove(os.path.join(root, filename))
252
for dirname in dirs:
253
os.rmdir(os.path.join(root, dirname))
254
# Remove tempdir
255
os.rmdir(self.tempdir)
256
self.tempdir = None
257
258
def password_encode(self, password):
259
# Passphrase can not be empty and can not contain newlines or
260
# NUL bytes. So we prefix it and hex encode it.
261
encoded = b"mandos" + binascii.hexlify(password)
262
if len(encoded) > 2048:
263
# GnuPG can't handle long passwords, so encode differently
264
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
.replace(b"\n", b"\\n")
266
.replace(b"\0", b"\\x00"))
267
return encoded
268
269
def encrypt(self, data, password):
270
passphrase = self.password_encode(password)
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
273
passfile.write(passphrase)
274
passfile.flush()
275
proc = subprocess.Popen([self.gpg, '--symmetric',
276
'--passphrase-file',
277
passfile.name]
278
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
283
if proc.returncode != 0:
284
raise PGPError(err)
285
return ciphertext
286
287
def decrypt(self, data, password):
288
passphrase = self.password_encode(password)
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
291
passfile.write(passphrase)
292
passfile.flush()
293
proc = subprocess.Popen([self.gpg, '--decrypt',
294
'--passphrase-file',
295
passfile.name]
296
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
301
if proc.returncode != 0:
302
raise PGPError(err)
303
return decrypted_plaintext
304
305
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
83
SO_BINDTODEVICE = None
84
85
86
version = "1.4.1"
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)
331
103
332
104
class AvahiError(Exception):
333
105
def __init__(self, value, *args, **kwargs):
334
106
self.value = value
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
338
110
339
111
class AvahiServiceError(AvahiError):
340
112
pass
341
113
342
343
114
class AvahiGroupError(AvahiError):
344
115
pass
345
116
346
117
347
class AvahiService:
118
class AvahiService(object):
348
119
"""An Avahi (Zeroconf) service.
349
120
350
121
Attributes:
351
122
interface: integer; avahi.IF_UNSPEC or an interface index.
352
123
Used to optionally bind to the specified interface.
353
124
name: string; Example: 'Mandos'
354
125
type: string; Example: '_mandos._tcp'.
355
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
356
127
port: integer; what port to announce
357
128
TXT: list of strings; TXT record for the service
358
129
domain: string; Domain to publish on, default to .local if empty.
364
135
server: D-Bus Server
365
136
bus: dbus.SystemBus()
366
137
"""
367
368
def __init__(self,
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
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):
379
142
self.interface = interface
380
143
self.name = name
381
144
self.type = servicetype
390
153
self.server = None
391
154
self.bus = bus
392
155
self.entry_group_state_changed_match = None
393
394
def rename(self, remove=True):
156
def rename(self):
395
157
"""Derived from the Avahi example code"""
396
158
if self.rename_count >= self.max_renames:
397
159
logger.critical("No suitable Zeroconf service name found"
398
160
" after %i retries, exiting.",
399
161
self.rename_count)
400
162
raise AvahiServiceError("Too many renames")
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
163
self.name = unicode(self.server
164
.GetAlternativeServiceName(self.name))
404
165
logger.info("Changing Zeroconf service name to %r ...",
405
166
self.name)
406
if remove:
407
self.remove()
167
syslogger.setFormatter(logging.Formatter
168
('Mandos (%s) [%%(process)d]:'
169
' %%(levelname)s: %%(message)s'
170
% self.name))
171
self.remove()
408
172
try:
409
173
self.add()
410
174
except dbus.exceptions.DBusException as error:
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
logger.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
logger.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
175
logger.critical("DBusException: %s", error)
176
self.cleanup()
177
os._exit(1)
178
self.rename_count += 1
420
179
def remove(self):
421
180
"""Derived from the Avahi example code"""
422
181
if self.entry_group_state_changed_match is not None:
424
183
self.entry_group_state_changed_match = None
425
184
if self.group is not None:
426
185
self.group.Reset()
427
428
186
def add(self):
429
187
"""Derived from the Avahi example code"""
430
188
self.remove()
435
193
avahi.DBUS_INTERFACE_ENTRY_GROUP)
436
194
self.entry_group_state_changed_match = (
437
195
self.group.connect_to_signal(
438
'StateChanged', self.entry_group_state_changed))
196
'StateChanged', self .entry_group_state_changed))
439
197
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
440
198
self.name, self.type)
441
199
self.group.AddService(
447
205
dbus.UInt16(self.port),
448
206
avahi.string_array_to_txt_array(self.TXT))
449
207
self.group.Commit()
450
451
208
def entry_group_state_changed(self, state, error):
452
209
"""Derived from the Avahi example code"""
453
210
logger.debug("Avahi entry group state change: %i", state)
454
211
455
212
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
213
logger.debug("Zeroconf service established.")
457
214
elif state == avahi.ENTRY_GROUP_COLLISION:
459
216
self.rename()
460
217
elif state == avahi.ENTRY_GROUP_FAILURE:
461
218
logger.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
219
unicode(error))
220
raise AvahiGroupError("State changed: %s"
221
% unicode(error))
465
222
def cleanup(self):
466
223
"""Derived from the Avahi example code"""
467
224
if self.group is not None:
468
225
try:
469
226
self.group.Free()
470
227
except (dbus.exceptions.UnknownMethodException,
471
dbus.exceptions.DBusException):
228
dbus.exceptions.DBusException) as e:
472
229
pass
473
230
self.group = None
474
231
self.remove()
475
476
232
def server_state_changed(self, state, error=None):
477
233
"""Derived from the Avahi example code"""
478
234
logger.debug("Avahi server state change: %i", state)
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
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" }
485
242
if state in bad_states:
486
243
if bad_states[state] is not None:
487
244
if error is None:
490
247
logger.error(bad_states[state] + ": %r", error)
491
248
self.cleanup()
492
249
elif state == avahi.SERVER_RUNNING:
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
logger.info("Local Zeroconf service name"
499
" collision.")
500
return self.rename(remove=False)
501
else:
502
logger.critical("D-Bus Exception", exc_info=error)
503
self.cleanup()
504
os._exit(1)
250
self.add()
505
251
else:
506
252
if error is None:
507
253
logger.debug("Unknown state: %r", state)
508
254
else:
509
255
logger.debug("Unknown state: %r: %r", state, error)
510
511
256
def activate(self):
512
257
"""Derived from the Avahi example code"""
513
258
if self.server is None:
517
262
follow_name_owner_changes=True),
518
263
avahi.DBUS_INTERFACE_SERVER)
519
264
self.server.connect_to_signal("StateChanged",
520
self.server_state_changed)
265
self.server_state_changed)
521
266
self.server_state_changed(self.server.GetState())
522
267
523
268
524
class AvahiServiceToSyslog(AvahiService):
525
def rename(self, *args, **kwargs):
526
"""Add the new name to the syslog messages"""
527
ret = super(AvahiServiceToSyslog, self).rename(*args,
528
**kwargs)
529
syslogger.setFormatter(logging.Formatter(
530
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
531
.format(self.name)))
532
return ret
533
534
535
# Pretend that we have a GnuTLS module
536
class gnutls:
537
"""This isn't so much a class as it is a module-like namespace."""
538
539
library = ctypes.util.find_library("gnutls")
540
if library is None:
541
library = ctypes.util.find_library("gnutls-deb0")
542
_library = ctypes.cdll.LoadLibrary(library)
543
del library
544
545
# Unless otherwise indicated, the constants and types below are
546
# all from the gnutls/gnutls.h C header file.
547
548
# Constants
549
E_SUCCESS = 0
550
E_INTERRUPTED = -52
551
E_AGAIN = -28
552
CRT_OPENPGP = 2
553
CRT_RAWPK = 3
554
CLIENT = 2
555
SHUT_RDWR = 0
556
CRD_CERTIFICATE = 1
557
E_NO_CERTIFICATE_FOUND = -49
558
X509_FMT_DER = 0
559
NO_TICKETS = 1<<10
560
ENABLE_RAWPK = 1<<18
561
CTYPE_PEERS = 3
562
KEYID_USE_SHA256 = 1 # gnutls/x509.h
563
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
564
565
# Types
566
class session_int(ctypes.Structure):
567
_fields_ = []
568
session_t = ctypes.POINTER(session_int)
569
570
class certificate_credentials_st(ctypes.Structure):
571
_fields_ = []
572
certificate_credentials_t = ctypes.POINTER(
573
certificate_credentials_st)
574
certificate_type_t = ctypes.c_int
575
576
class datum_t(ctypes.Structure):
577
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
578
('size', ctypes.c_uint)]
579
580
class openpgp_crt_int(ctypes.Structure):
581
_fields_ = []
582
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
583
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
584
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
585
credentials_type_t = ctypes.c_int
586
transport_ptr_t = ctypes.c_void_p
587
close_request_t = ctypes.c_int
588
589
# Exceptions
590
class Error(Exception):
591
def __init__(self, message=None, code=None, args=()):
592
# Default usage is by a message string, but if a return
593
# code is passed, convert it to a string with
594
# gnutls.strerror()
595
self.code = code
596
if message is None and code is not None:
597
message = gnutls.strerror(code)
598
return super(gnutls.Error, self).__init__(
599
message, *args)
600
601
class CertificateSecurityError(Error):
602
pass
603
604
# Classes
605
class Credentials:
606
def __init__(self):
607
self._c_object = gnutls.certificate_credentials_t()
608
gnutls.certificate_allocate_credentials(
609
ctypes.byref(self._c_object))
610
self.type = gnutls.CRD_CERTIFICATE
611
612
def __del__(self):
613
gnutls.certificate_free_credentials(self._c_object)
614
615
class ClientSession:
616
def __init__(self, socket, credentials=None):
617
self._c_object = gnutls.session_t()
618
gnutls_flags = gnutls.CLIENT
619
if gnutls.check_version(b"3.5.6"):
620
gnutls_flags |= gnutls.NO_TICKETS
621
if gnutls.has_rawpk:
622
gnutls_flags |= gnutls.ENABLE_RAWPK
623
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
624
del gnutls_flags
625
gnutls.set_default_priority(self._c_object)
626
gnutls.transport_set_ptr(self._c_object, socket.fileno())
627
gnutls.handshake_set_private_extensions(self._c_object,
628
True)
629
self.socket = socket
630
if credentials is None:
631
credentials = gnutls.Credentials()
632
gnutls.credentials_set(self._c_object, credentials.type,
633
ctypes.cast(credentials._c_object,
634
ctypes.c_void_p))
635
self.credentials = credentials
636
637
def __del__(self):
638
gnutls.deinit(self._c_object)
639
640
def handshake(self):
641
return gnutls.handshake(self._c_object)
642
643
def send(self, data):
644
data = bytes(data)
645
data_len = len(data)
646
while data_len > 0:
647
data_len -= gnutls.record_send(self._c_object,
648
data[-data_len:],
649
data_len)
650
651
def bye(self):
652
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
653
654
# Error handling functions
655
def _error_code(result):
656
"""A function to raise exceptions on errors, suitable
657
for the 'restype' attribute on ctypes functions"""
658
if result >= 0:
659
return result
660
if result == gnutls.E_NO_CERTIFICATE_FOUND:
661
raise gnutls.CertificateSecurityError(code=result)
662
raise gnutls.Error(code=result)
663
664
def _retry_on_error(result, func, arguments,
665
_error_code=_error_code):
666
"""A function to retry on some errors, suitable
667
for the 'errcheck' attribute on ctypes functions"""
668
while result < 0:
669
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
670
return _error_code(result)
671
result = func(*arguments)
672
return result
673
674
# Unless otherwise indicated, the function declarations below are
675
# all from the gnutls/gnutls.h C header file.
676
677
# Functions
678
priority_set_direct = _library.gnutls_priority_set_direct
679
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
680
ctypes.POINTER(ctypes.c_char_p)]
681
priority_set_direct.restype = _error_code
682
683
init = _library.gnutls_init
684
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
685
init.restype = _error_code
686
687
set_default_priority = _library.gnutls_set_default_priority
688
set_default_priority.argtypes = [session_t]
689
set_default_priority.restype = _error_code
690
691
record_send = _library.gnutls_record_send
692
record_send.argtypes = [session_t, ctypes.c_void_p,
693
ctypes.c_size_t]
694
record_send.restype = ctypes.c_ssize_t
695
record_send.errcheck = _retry_on_error
696
697
certificate_allocate_credentials = (
698
_library.gnutls_certificate_allocate_credentials)
699
certificate_allocate_credentials.argtypes = [
700
ctypes.POINTER(certificate_credentials_t)]
701
certificate_allocate_credentials.restype = _error_code
702
703
certificate_free_credentials = (
704
_library.gnutls_certificate_free_credentials)
705
certificate_free_credentials.argtypes = [
706
certificate_credentials_t]
707
certificate_free_credentials.restype = None
708
709
handshake_set_private_extensions = (
710
_library.gnutls_handshake_set_private_extensions)
711
handshake_set_private_extensions.argtypes = [session_t,
712
ctypes.c_int]
713
handshake_set_private_extensions.restype = None
714
715
credentials_set = _library.gnutls_credentials_set
716
credentials_set.argtypes = [session_t, credentials_type_t,
717
ctypes.c_void_p]
718
credentials_set.restype = _error_code
719
720
strerror = _library.gnutls_strerror
721
strerror.argtypes = [ctypes.c_int]
722
strerror.restype = ctypes.c_char_p
723
724
certificate_type_get = _library.gnutls_certificate_type_get
725
certificate_type_get.argtypes = [session_t]
726
certificate_type_get.restype = _error_code
727
728
certificate_get_peers = _library.gnutls_certificate_get_peers
729
certificate_get_peers.argtypes = [session_t,
730
ctypes.POINTER(ctypes.c_uint)]
731
certificate_get_peers.restype = ctypes.POINTER(datum_t)
732
733
global_set_log_level = _library.gnutls_global_set_log_level
734
global_set_log_level.argtypes = [ctypes.c_int]
735
global_set_log_level.restype = None
736
737
global_set_log_function = _library.gnutls_global_set_log_function
738
global_set_log_function.argtypes = [log_func]
739
global_set_log_function.restype = None
740
741
deinit = _library.gnutls_deinit
742
deinit.argtypes = [session_t]
743
deinit.restype = None
744
745
handshake = _library.gnutls_handshake
746
handshake.argtypes = [session_t]
747
handshake.restype = _error_code
748
handshake.errcheck = _retry_on_error
749
750
transport_set_ptr = _library.gnutls_transport_set_ptr
751
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
752
transport_set_ptr.restype = None
753
754
bye = _library.gnutls_bye
755
bye.argtypes = [session_t, close_request_t]
756
bye.restype = _error_code
757
bye.errcheck = _retry_on_error
758
759
check_version = _library.gnutls_check_version
760
check_version.argtypes = [ctypes.c_char_p]
761
check_version.restype = ctypes.c_char_p
762
763
_need_version = b"3.3.0"
764
if check_version(_need_version) is None:
765
raise self.Error("Needs GnuTLS {} or later"
766
.format(_need_version))
767
768
_tls_rawpk_version = b"3.6.6"
769
has_rawpk = bool(check_version(_tls_rawpk_version))
770
771
if has_rawpk:
772
# Types
773
class pubkey_st(ctypes.Structure):
774
_fields = []
775
pubkey_t = ctypes.POINTER(pubkey_st)
776
777
x509_crt_fmt_t = ctypes.c_int
778
779
# All the function declarations below are from
780
# gnutls/abstract.h
781
pubkey_init = _library.gnutls_pubkey_init
782
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
783
pubkey_init.restype = _error_code
784
785
pubkey_import = _library.gnutls_pubkey_import
786
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
787
x509_crt_fmt_t]
788
pubkey_import.restype = _error_code
789
790
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
791
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
792
ctypes.POINTER(ctypes.c_ubyte),
793
ctypes.POINTER(ctypes.c_size_t)]
794
pubkey_get_key_id.restype = _error_code
795
796
pubkey_deinit = _library.gnutls_pubkey_deinit
797
pubkey_deinit.argtypes = [pubkey_t]
798
pubkey_deinit.restype = None
799
else:
800
# All the function declarations below are from
801
# gnutls/openpgp.h
802
803
openpgp_crt_init = _library.gnutls_openpgp_crt_init
804
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
805
openpgp_crt_init.restype = _error_code
806
807
openpgp_crt_import = _library.gnutls_openpgp_crt_import
808
openpgp_crt_import.argtypes = [openpgp_crt_t,
809
ctypes.POINTER(datum_t),
810
openpgp_crt_fmt_t]
811
openpgp_crt_import.restype = _error_code
812
813
openpgp_crt_verify_self = \
814
_library.gnutls_openpgp_crt_verify_self
815
openpgp_crt_verify_self.argtypes = [
816
openpgp_crt_t,
817
ctypes.c_uint,
818
ctypes.POINTER(ctypes.c_uint),
819
]
820
openpgp_crt_verify_self.restype = _error_code
821
822
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
823
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
824
openpgp_crt_deinit.restype = None
825
826
openpgp_crt_get_fingerprint = (
827
_library.gnutls_openpgp_crt_get_fingerprint)
828
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
829
ctypes.c_void_p,
830
ctypes.POINTER(
831
ctypes.c_size_t)]
832
openpgp_crt_get_fingerprint.restype = _error_code
833
834
if check_version(b"3.6.4"):
835
certificate_type_get2 = _library.gnutls_certificate_type_get2
836
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
837
certificate_type_get2.restype = _error_code
838
839
# Remove non-public functions
840
del _error_code, _retry_on_error
841
842
843
def call_pipe(connection, # : multiprocessing.Connection
844
func, *args, **kwargs):
845
"""This function is meant to be called by multiprocessing.Process
846
847
This function runs func(*args, **kwargs), and writes the resulting
848
return value on the provided multiprocessing.Connection.
849
"""
850
connection.send(func(*args, **kwargs))
851
connection.close()
852
853
854
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):
855
276
"""A representation of a client host served by this server.
856
277
857
278
Attributes:
858
approved: bool(); 'None' if not yet approved/disapproved
279
_approved: bool(); 'None' if not yet approved/disapproved
859
280
approval_delay: datetime.timedelta(); Time to wait for approval
860
281
approval_duration: datetime.timedelta(); Duration of one approval
861
checker: multiprocessing.Process(); a running checker process used
862
to see if the client lives. 'None' if no process is
863
running.
864
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
865
286
checker_command: string; External command which is run to check
866
287
if client lives. %() expansions are done at
867
288
runtime with vars(self) as dict, so that for
868
289
instance %(name)s can be used in the command.
869
checker_initiator_tag: a GLib event source tag, or None
290
checker_initiator_tag: a gobject event source tag, or None
870
291
created: datetime.datetime(); (UTC) object creation
871
client_structure: Object describing what attributes a client has
872
and is used for storing the client at exit
873
292
current_checker_command: string; current running checker_command
874
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
875
295
enabled: bool()
876
296
fingerprint: string (40 or 32 hexadecimal digits); used to
877
uniquely identify an OpenPGP client
878
key_id: string (64 hexadecimal digits); used to uniquely identify
879
a client using raw public keys
297
uniquely identify the client
880
298
host: string; available for use by the checker command
881
299
interval: datetime.timedelta(); How often to start a new checker
882
300
last_approval_request: datetime.datetime(); (UTC) or None
883
301
last_checked_ok: datetime.datetime(); (UTC) or None
884
last_checker_status: integer between 0 and 255 reflecting exit
885
status of last checker. -1 reflects crashed
886
checker, -2 means no checker completed yet.
887
last_checker_signal: The signal which killed the last checker, if
888
last_checker_status is -1
889
last_enabled: datetime.datetime(); (UTC) or None
302
last_enabled: datetime.datetime(); (UTC)
890
303
name: string; from the config file, used in log messages and
891
304
D-Bus identifiers
892
305
secret: bytestring; sent verbatim (over TLS) to client
893
306
timeout: datetime.timedelta(); How long from last_checked_ok
894
307
until this client is disabled
895
extended_timeout: extra long timeout when secret has been sent
308
extended_timeout: extra long timeout when password has been sent
896
309
runtime_expansions: Allowed attributes for runtime expansion.
897
310
expires: datetime.datetime(); time (UTC) when a client will be
898
311
disabled, or None
899
server_settings: The server_settings dict from main()
900
312
"""
901
313
902
314
runtime_expansions = ("approval_delay", "approval_duration",
903
"created", "enabled", "expires", "key_id",
904
"fingerprint", "host", "interval",
905
"last_approval_request", "last_checked_ok",
315
"created", "enabled", "fingerprint",
316
"host", "interval", "last_checked_ok",
906
317
"last_enabled", "name", "timeout")
907
client_defaults = {
908
"timeout": "PT5M",
909
"extended_timeout": "PT15M",
910
"interval": "PT2M",
911
"checker": "fping -q -- %%(host)s",
912
"host": "",
913
"approval_delay": "PT0S",
914
"approval_duration": "PT1S",
915
"approved_by_default": "True",
916
"enabled": "True",
917
}
918
919
@staticmethod
920
def config_parser(config):
921
"""Construct a new dict of client settings of this form:
922
{ client_name: {setting_name: value, ...}, ...}
923
with exceptions for any special settings as defined above.
924
NOTE: Must be a pure function. Must return the same result
925
value given the same arguments.
926
"""
927
settings = {}
928
for client_name in config.sections():
929
section = dict(config.items(client_name))
930
client = settings[client_name] = {}
931
932
client["host"] = section["host"]
933
# Reformat values from string types to Python types
934
client["approved_by_default"] = config.getboolean(
935
client_name, "approved_by_default")
936
client["enabled"] = config.getboolean(client_name,
937
"enabled")
938
939
# Uppercase and remove spaces from key_id and fingerprint
940
# for later comparison purposes with return value from the
941
# key_id() and fingerprint() functions
942
client["key_id"] = (section.get("key_id", "").upper()
943
.replace(" ", ""))
944
client["fingerprint"] = (section["fingerprint"].upper()
945
.replace(" ", ""))
946
if "secret" in section:
947
client["secret"] = codecs.decode(section["secret"]
948
.encode("utf-8"),
949
"base64")
950
elif "secfile" in section:
951
with open(os.path.expanduser(os.path.expandvars
952
(section["secfile"])),
953
"rb") as secfile:
954
client["secret"] = secfile.read()
955
else:
956
raise TypeError("No secret or secfile for section {}"
957
.format(section))
958
client["timeout"] = string_to_delta(section["timeout"])
959
client["extended_timeout"] = string_to_delta(
960
section["extended_timeout"])
961
client["interval"] = string_to_delta(section["interval"])
962
client["approval_delay"] = string_to_delta(
963
section["approval_delay"])
964
client["approval_duration"] = string_to_delta(
965
section["approval_duration"])
966
client["checker_command"] = section["checker"]
967
client["last_approval_request"] = None
968
client["last_checked_ok"] = None
969
client["last_checker_status"] = -2
970
971
return settings
972
973
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."""
974
338
self.name = name
975
if server_settings is None:
976
server_settings = {}
977
self.server_settings = server_settings
978
# adding all client settings
979
for setting, value in settings.items():
980
setattr(self, setting, value)
981
982
if self.enabled:
983
if not hasattr(self, "last_enabled"):
984
self.last_enabled = datetime.datetime.utcnow()
985
if not hasattr(self, "expires"):
986
self.expires = (datetime.datetime.utcnow()
987
+ self.timeout)
988
else:
989
self.last_enabled = None
990
self.expires = None
991
339
if config is None:
340
config = {}
992
341
logger.debug("Creating client %r", self.name)
993
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(" ", ""))
994
347
logger.debug(" Fingerprint: %s", self.fingerprint)
995
self.created = settings.get("created",
996
datetime.datetime.utcnow())
997
998
# 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
999
369
self.checker = None
1000
370
self.checker_initiator_tag = None
1001
371
self.disable_initiator_tag = None
372
self.expires = None
1002
373
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
1003
375
self.current_checker_command = None
1004
self.approved = None
376
self.last_connect = None
377
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
379
True)
1005
380
self.approvals_pending = 0
1006
self.changedstate = multiprocessing_manager.Condition(
1007
multiprocessing_manager.Lock())
1008
self.client_structure = [attr
1009
for attr in self.__dict__.keys()
1010
if not attr.startswith("_")]
1011
self.client_structure.append("client_structure")
1012
1013
for name, t in inspect.getmembers(
1014
type(self), lambda obj: isinstance(obj, property)):
1015
if not name.startswith("_"):
1016
self.client_structure.append(name)
1017
1018
# 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
1019
389
def send_changedstate(self):
1020
with self.changedstate:
1021
self.changedstate.notify_all()
1022
390
self.changedstate.acquire()
391
self.changedstate.notify_all()
392
self.changedstate.release()
393
1023
394
def enable(self):
1024
395
"""Start this client's checker and timeout hooks"""
1025
396
if getattr(self, "enabled", False):
1026
397
# Already enabled
1027
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
1028
406
self.expires = datetime.datetime.utcnow() + self.timeout
407
self.disable_initiator_tag = (gobject.timeout_add
408
(self.timeout_milliseconds(),
409
self.disable))
1029
410
self.enabled = True
1030
411
self.last_enabled = datetime.datetime.utcnow()
1031
self.init_checker()
1032
self.send_changedstate()
1033
412
# Also start a new checker *right now*.
413
self.start_checker()
414
1034
415
def disable(self, quiet=True):
1035
416
"""Disable this client."""
1036
417
if not getattr(self, "enabled", False):
1037
418
return False
1038
419
if not quiet:
420
self.send_changedstate()
421
if not quiet:
1039
422
logger.info("Disabling client %s", self.name)
1040
if getattr(self, "disable_initiator_tag", None) is not None:
1041
GLib.source_remove(self.disable_initiator_tag)
423
if getattr(self, "disable_initiator_tag", False):
424
gobject.source_remove(self.disable_initiator_tag)
1042
425
self.disable_initiator_tag = None
1043
426
self.expires = None
1044
if getattr(self, "checker_initiator_tag", None) is not None:
1045
GLib.source_remove(self.checker_initiator_tag)
427
if getattr(self, "checker_initiator_tag", False):
428
gobject.source_remove(self.checker_initiator_tag)
1046
429
self.checker_initiator_tag = None
1047
430
self.stop_checker()
431
if self.disable_hook:
432
self.disable_hook(self)
1048
433
self.enabled = False
1049
if not quiet:
1050
self.send_changedstate()
1051
# 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
1052
435
return False
1053
436
1054
437
def __del__(self):
438
self.disable_hook = None
1055
439
self.disable()
1056
1057
def init_checker(self):
1058
# Schedule a new checker to be started an 'interval' from now,
1059
# and every interval from then on.
1060
if self.checker_initiator_tag is not None:
1061
GLib.source_remove(self.checker_initiator_tag)
1062
self.checker_initiator_tag = GLib.timeout_add(
1063
random.randrange(int(self.interval.total_seconds() * 1000
1064
+ 1)),
1065
self.start_checker)
1066
# Schedule a disable() when 'timeout' has passed
1067
if self.disable_initiator_tag is not None:
1068
GLib.source_remove(self.disable_initiator_tag)
1069
self.disable_initiator_tag = GLib.timeout_add(
1070
int(self.timeout.total_seconds() * 1000), self.disable)
1071
# Also start a new checker *right now*.
1072
self.start_checker()
1073
1074
def checker_callback(self, source, condition, connection,
1075
command):
440
441
def checker_callback(self, pid, condition, command):
1076
442
"""The checker has completed, so take appropriate actions."""
1077
# Read return code from connection (see call_pipe)
1078
returncode = connection.recv()
1079
connection.close()
1080
if self.checker is not None:
1081
self.checker.join()
1082
443
self.checker_callback_tag = None
1083
444
self.checker = None
1084
1085
if returncode >= 0:
1086
self.last_checker_status = returncode
1087
self.last_checker_signal = None
1088
if self.last_checker_status == 0:
445
if os.WIFEXITED(condition):
446
exitstatus = os.WEXITSTATUS(condition)
447
if exitstatus == 0:
1089
448
logger.info("Checker for %(name)s succeeded",
1090
449
vars(self))
1091
450
self.checked_ok()
1092
451
else:
1093
logger.info("Checker for %(name)s failed", vars(self))
452
logger.info("Checker for %(name)s failed",
453
vars(self))
1094
454
else:
1095
self.last_checker_status = -1
1096
self.last_checker_signal = -returncode
1097
455
logger.warning("Checker for %(name)s crashed?",
1098
456
vars(self))
1099
return False
1100
1101
def checked_ok(self):
1102
"""Assert that the client has been seen, alive and well."""
1103
self.last_checked_ok = datetime.datetime.utcnow()
1104
self.last_checker_status = 0
1105
self.last_checker_signal = None
1106
self.bump_timeout()
1107
1108
def bump_timeout(self, timeout=None):
1109
"""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
"""
1110
464
if timeout is None:
1111
465
timeout = self.timeout
466
self.last_checked_ok = datetime.datetime.utcnow()
1112
467
if self.disable_initiator_tag is not None:
1113
GLib.source_remove(self.disable_initiator_tag)
1114
self.disable_initiator_tag = None
468
gobject.source_remove(self.disable_initiator_tag)
1115
469
if getattr(self, "enabled", False):
1116
self.disable_initiator_tag = GLib.timeout_add(
1117
int(timeout.total_seconds() * 1000), self.disable)
470
self.disable_initiator_tag = (gobject.timeout_add
471
(_timedelta_to_milliseconds
472
(timeout), self.disable))
1118
473
self.expires = datetime.datetime.utcnow() + timeout
1119
474
1120
475
def need_approval(self):
1121
476
self.last_approval_request = datetime.datetime.utcnow()
1122
477
1123
478
def start_checker(self):
1124
479
"""Start a new checker subprocess if one is not running.
1125
480
1126
481
If a checker already exists, leave it running and do
1127
482
nothing."""
1128
483
# The reason for not killing a running checker is that if we
1129
# did that, and if a checker (for some reason) started running
1130
# slowly and taking more than 'interval' time, then the client
1131
# would inevitably timeout, since no checker would get a
1132
# chance to run to completion. If we instead leave running
484
# did that, then if a checker (for some reason) started
485
# running slowly and taking more than 'interval' time, the
486
# client would inevitably timeout, since no checker would get
487
# a chance to run to completion. If we instead leave running
1133
488
# checkers alone, the checker would have to take more time
1134
489
# than 'timeout' for the client to be disabled, which is as it
1135
490
# should be.
1136
1137
if self.checker is not None and not self.checker.is_alive():
1138
logger.warning("Checker was not alive; joining")
1139
self.checker.join()
1140
self.checker = None
491
492
# If a checker exists, make sure it is not a zombie
493
try:
494
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
495
except (AttributeError, OSError) as error:
496
if (isinstance(error, OSError)
497
and error.errno != errno.ECHILD):
498
raise error
499
else:
500
if pid:
501
logger.warning("Checker was a zombie")
502
gobject.source_remove(self.checker_callback_tag)
503
self.checker_callback(pid, status,
504
self.current_checker_command)
1141
505
# Start a new checker if needed
1142
506
if self.checker is None:
1143
# Escape attributes for the shell
1144
escaped_attrs = {
1145
attr: shlex.quote(str(getattr(self, attr)))
1146
for attr in self.runtime_expansions}
1147
507
try:
1148
command = self.checker_command % escaped_attrs
1149
except TypeError as error:
1150
logger.error('Could not format string "%s"',
1151
self.checker_command,
1152
exc_info=error)
1153
return True # Try again later
508
# In case checker_command has exactly one % operator
509
command = self.checker_command % self.host
510
except TypeError:
511
# Escape attributes for the shell
512
escaped_attrs = dict(
513
(attr,
514
re.escape(unicode(str(getattr(self, attr, "")),
515
errors=
516
'replace')))
517
for attr in
518
self.runtime_expansions)
519
520
try:
521
command = self.checker_command % escaped_attrs
522
except TypeError as error:
523
logger.error('Could not format string "%s":'
524
' %s', self.checker_command, error)
525
return True # Try again later
1154
526
self.current_checker_command = command
1155
logger.info("Starting checker %r for %s", command,
1156
self.name)
1157
# We don't need to redirect stdout and stderr, since
1158
# in normal mode, that is already done by daemon(),
1159
# and in debug mode we don't want to. (Stdin is
1160
# always replaced by /dev/null.)
1161
# The exception is when not debugging but nevertheless
1162
# running in the foreground; use the previously
1163
# created wnull.
1164
popen_args = {"close_fds": True,
1165
"shell": True,
1166
"cwd": "/"}
1167
if (not self.server_settings["debug"]
1168
and self.server_settings["foreground"]):
1169
popen_args.update({"stdout": wnull,
1170
"stderr": wnull})
1171
pipe = multiprocessing.Pipe(duplex=False)
1172
self.checker = multiprocessing.Process(
1173
target=call_pipe,
1174
args=(pipe[1], subprocess.call, command),
1175
kwargs=popen_args)
1176
self.checker.start()
1177
self.checker_callback_tag = GLib.io_add_watch(
1178
GLib.IOChannel.unix_new(pipe[0].fileno()),
1179
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1180
self.checker_callback, pipe[0], command)
1181
# Re-run this periodically if run by GLib.timeout_add
527
try:
528
logger.info("Starting checker %r for %s",
529
command, self.name)
530
# We don't need to redirect stdout and stderr, since
531
# in normal mode, that is already done by daemon(),
532
# and in debug mode we don't want to. (Stdin is
533
# always replaced by /dev/null.)
534
self.checker = subprocess.Popen(command,
535
close_fds=True,
536
shell=True, cwd="/")
537
self.checker_callback_tag = (gobject.child_watch_add
538
(self.checker.pid,
539
self.checker_callback,
540
data=command))
541
# The checker may have completed before the gobject
542
# watch was added. Check for this.
543
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
544
if pid:
545
gobject.source_remove(self.checker_callback_tag)
546
self.checker_callback(pid, status, command)
547
except OSError as error:
548
logger.error("Failed to start subprocess: %s",
549
error)
550
# Re-run this periodically if run by gobject.timeout_add
1182
551
return True
1183
552
1184
553
def stop_checker(self):
1185
554
"""Force the checker process, if any, to stop."""
1186
555
if self.checker_callback_tag:
1187
GLib.source_remove(self.checker_callback_tag)
556
gobject.source_remove(self.checker_callback_tag)
1188
557
self.checker_callback_tag = None
1189
558
if getattr(self, "checker", None) is None:
1190
559
return
1191
560
logger.debug("Stopping checker for %(name)s", vars(self))
1192
self.checker.terminate()
561
try:
562
os.kill(self.checker.pid, signal.SIGTERM)
563
#time.sleep(0.5)
564
#if self.checker.poll() is None:
565
# os.kill(self.checker.pid, signal.SIGKILL)
566
except OSError as error:
567
if error.errno != errno.ESRCH: # No such process
568
raise
1193
569
self.checker = None
1194
570
1195
571
1196
def dbus_service_property(dbus_interface,
1197
signature="v",
1198
access="readwrite",
1199
byte_arrays=False):
572
def dbus_service_property(dbus_interface, signature="v",
573
access="readwrite", byte_arrays=False):
1200
574
"""Decorators for marking methods of a DBusObjectWithProperties to
1201
575
become properties on the D-Bus.
1202
576
1203
577
The decorated method will be called with no arguments by "Get"
1204
578
and with one argument by "Set".
1205
579
1206
580
The parameters, where they are supported, are the same as
1207
581
dbus.service.method, except there is only "signature", since the
1208
582
type from Get() and the type sent to Set() is the same.
1211
585
# "Set" method, so we fail early here:
1212
586
if byte_arrays and signature != "ay":
1213
587
raise ValueError("Byte arrays not supported for non-'ay'"
1214
" signature {!r}".format(signature))
1215
588
" signature %r" % signature)
1216
589
def decorator(func):
1217
590
func._dbus_is_property = True
1218
591
func._dbus_interface = dbus_interface
1221
594
func._dbus_name = func.__name__
1222
595
if func._dbus_name.endswith("_dbus_property"):
1223
596
func._dbus_name = func._dbus_name[:-14]
1224
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1225
return func
1226
1227
return decorator
1228
1229
1230
def dbus_interface_annotations(dbus_interface):
1231
"""Decorator for marking functions returning interface annotations
1232
1233
Usage:
1234
1235
@dbus_interface_annotations("org.example.Interface")
1236
def _foo(self): # Function name does not matter
1237
return {"org.freedesktop.DBus.Deprecated": "true",
1238
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1239
"false"}
1240
"""
1241
1242
def decorator(func):
1243
func._dbus_is_interface = True
1244
func._dbus_interface = dbus_interface
1245
func._dbus_name = dbus_interface
1246
return func
1247
1248
return decorator
1249
1250
1251
def dbus_annotations(annotations):
1252
"""Decorator to annotate D-Bus methods, signals or properties
1253
Usage:
1254
1255
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1256
"org.freedesktop.DBus.Property."
1257
"EmitsChangedSignal": "false"})
1258
@dbus_service_property("org.example.Interface", signature="b",
1259
access="r")
1260
def Property_dbus_property(self):
1261
return dbus.Boolean(False)
1262
1263
See also the DBusObjectWithAnnotations class.
1264
"""
1265
1266
def decorator(func):
1267
func._dbus_annotations = annotations
1268
return func
1269
597
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
598
return func
1270
599
return decorator
1271
600
1272
601
1273
602
class DBusPropertyException(dbus.exceptions.DBusException):
1274
603
"""A base class for D-Bus property-related exceptions
1275
604
"""
1276
pass
605
def __unicode__(self):
606
return unicode(str(self))
1277
607
1278
608
1279
609
class DBusPropertyAccessException(DBusPropertyException):
1288
618
pass
1289
619
1290
620
1291
class DBusObjectWithAnnotations(dbus.service.Object):
1292
"""A D-Bus object with annotations.
1293
1294
Classes inheriting from this can use the dbus_annotations
1295
decorator to add annotations to methods or signals.
1296
"""
1297
1298
@staticmethod
1299
def _is_dbus_thing(thing):
1300
"""Returns a function testing if an attribute is a D-Bus thing
1301
1302
If called like _is_dbus_thing("method") it returns a function
1303
suitable for use as predicate to inspect.getmembers().
1304
"""
1305
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1306
False)
1307
1308
def _get_all_dbus_things(self, thing):
1309
"""Returns a generator of (name, attribute) pairs
1310
"""
1311
return ((getattr(athing.__get__(self), "_dbus_name", name),
1312
athing.__get__(self))
1313
for cls in self.__class__.__mro__
1314
for name, athing in
1315
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1316
1317
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1318
out_signature="s",
1319
path_keyword='object_path',
1320
connection_keyword='connection')
1321
def Introspect(self, object_path, connection):
1322
"""Overloading of standard D-Bus method.
1323
1324
Inserts annotation tags on methods and signals.
1325
"""
1326
xmlstring = dbus.service.Object.Introspect(self, object_path,
1327
connection)
1328
try:
1329
document = xml.dom.minidom.parseString(xmlstring)
1330
1331
for if_tag in document.getElementsByTagName("interface"):
1332
# Add annotation tags
1333
for typ in ("method", "signal"):
1334
for tag in if_tag.getElementsByTagName(typ):
1335
annots = dict()
1336
for name, prop in (self.
1337
_get_all_dbus_things(typ)):
1338
if (name == tag.getAttribute("name")
1339
and prop._dbus_interface
1340
== if_tag.getAttribute("name")):
1341
annots.update(getattr(
1342
prop, "_dbus_annotations", {}))
1343
for name, value in annots.items():
1344
ann_tag = document.createElement(
1345
"annotation")
1346
ann_tag.setAttribute("name", name)
1347
ann_tag.setAttribute("value", value)
1348
tag.appendChild(ann_tag)
1349
# Add interface annotation tags
1350
for annotation, value in dict(
1351
itertools.chain.from_iterable(
1352
annotations().items()
1353
for name, annotations
1354
in self._get_all_dbus_things("interface")
1355
if name == if_tag.getAttribute("name")
1356
)).items():
1357
ann_tag = document.createElement("annotation")
1358
ann_tag.setAttribute("name", annotation)
1359
ann_tag.setAttribute("value", value)
1360
if_tag.appendChild(ann_tag)
1361
# Fix argument name for the Introspect method itself
1362
if (if_tag.getAttribute("name")
1363
== dbus.INTROSPECTABLE_IFACE):
1364
for cn in if_tag.getElementsByTagName("method"):
1365
if cn.getAttribute("name") == "Introspect":
1366
for arg in cn.getElementsByTagName("arg"):
1367
if (arg.getAttribute("direction")
1368
== "out"):
1369
arg.setAttribute("name",
1370
"xml_data")
1371
xmlstring = document.toxml("utf-8")
1372
document.unlink()
1373
except (AttributeError, xml.dom.DOMException,
1374
xml.parsers.expat.ExpatError) as error:
1375
logger.error("Failed to override Introspection method",
1376
exc_info=error)
1377
return xmlstring
1378
1379
1380
class DBusObjectWithProperties(DBusObjectWithAnnotations):
621
class DBusObjectWithProperties(dbus.service.Object):
1381
622
"""A D-Bus object with properties.
1382
623
1383
624
Classes inheriting from this can use the dbus_service_property
1384
625
decorator to expose methods as D-Bus properties. It exposes the
1385
626
standard Get(), Set(), and GetAll() methods on the D-Bus.
1386
627
"""
1387
628
629
@staticmethod
630
def _is_dbus_property(obj):
631
return getattr(obj, "_dbus_is_property", False)
632
633
def _get_all_dbus_properties(self):
634
"""Returns a generator of (name, attribute) pairs
635
"""
636
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
637
for cls in self.__class__.__mro__
638
for name, prop in
639
inspect.getmembers(cls, self._is_dbus_property))
640
1388
641
def _get_dbus_property(self, interface_name, property_name):
1389
642
"""Returns a bound method if one exists which is a D-Bus
1390
643
property with the specified name and interface.
1391
644
"""
1392
for cls in self.__class__.__mro__:
1393
for name, value in inspect.getmembers(
1394
cls, self._is_dbus_thing("property")):
645
for cls in self.__class__.__mro__:
646
for name, value in (inspect.getmembers
647
(cls, self._is_dbus_property)):
1395
648
if (value._dbus_name == property_name
1396
649
and value._dbus_interface == interface_name):
1397
650
return value.__get__(self)
1398
651
1399
652
# No such property
1400
raise DBusPropertyNotFound("{}:{}.{}".format(
1401
self.dbus_object_path, interface_name, property_name))
1402
1403
@classmethod
1404
def _get_all_interface_names(cls):
1405
"""Get a sequence of all interfaces supported by an object"""
1406
return (name for name in set(getattr(getattr(x, attr),
1407
"_dbus_interface", None)
1408
for x in (inspect.getmro(cls))
1409
for attr in dir(x))
1410
if name is not None)
1411
1412
@dbus.service.method(dbus.PROPERTIES_IFACE,
1413
in_signature="ss",
653
raise DBusPropertyNotFound(self.dbus_object_path + ":"
654
+ interface_name + "."
655
+ property_name)
656
657
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1414
658
out_signature="v")
1415
659
def Get(self, interface_name, property_name):
1416
660
"""Standard D-Bus property Get() method, see D-Bus standard.
1422
666
if not hasattr(value, "variant_level"):
1423
667
return value
1424
668
return type(value)(value, variant_level=value.variant_level+1)
1425
669
1426
670
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1427
671
def Set(self, interface_name, property_name, value):
1428
672
"""Standard D-Bus property Set() method, see D-Bus standard.
1434
678
# The byte_arrays option is not supported yet on
1435
679
# signatures other than "ay".
1436
680
if prop._dbus_signature != "ay":
1437
raise ValueError("Byte arrays not supported for non-"
1438
"'ay' signature {!r}"
1439
.format(prop._dbus_signature))
1440
value = dbus.ByteArray(bytes(value))
681
raise ValueError
682
value = dbus.ByteArray(''.join(unichr(byte)
683
for byte in value))
1441
684
prop(value)
1442
1443
@dbus.service.method(dbus.PROPERTIES_IFACE,
1444
in_signature="s",
685
686
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1445
687
out_signature="a{sv}")
1446
688
def GetAll(self, interface_name):
1447
689
"""Standard D-Bus property GetAll() method, see D-Bus
1448
690
standard.
1449
691
1450
692
Note: Will not include properties with access="write".
1451
693
"""
1452
properties = {}
1453
for name, prop in self._get_all_dbus_things("property"):
694
all = {}
695
for name, prop in self._get_all_dbus_properties():
1454
696
if (interface_name
1455
697
and interface_name != prop._dbus_interface):
1456
698
# Interface non-empty but did not match
1460
702
continue
1461
703
value = prop()
1462
704
if not hasattr(value, "variant_level"):
1463
properties[name] = value
705
all[name] = value
1464
706
continue
1465
properties[name] = type(value)(
1466
value, variant_level=value.variant_level + 1)
1467
return dbus.Dictionary(properties, signature="sv")
1468
1469
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1470
def PropertiesChanged(self, interface_name, changed_properties,
1471
invalidated_properties):
1472
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1473
standard.
1474
"""
1475
pass
1476
707
all[name] = type(value)(value, variant_level=
708
value.variant_level+1)
709
return dbus.Dictionary(all, signature="sv")
710
1477
711
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1478
712
out_signature="s",
1479
713
path_keyword='object_path',
1480
714
connection_keyword='connection')
1481
715
def Introspect(self, object_path, connection):
1482
"""Overloading of standard D-Bus method.
1483
1484
Inserts property tags and interface annotation tags.
716
"""Standard D-Bus method, overloaded to insert property tags.
1485
717
"""
1486
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1487
object_path,
1488
connection)
718
xmlstring = dbus.service.Object.Introspect(self, object_path,
719
connection)
1489
720
try:
1490
721
document = xml.dom.minidom.parseString(xmlstring)
1491
1492
722
def make_tag(document, name, prop):
1493
723
e = document.createElement("property")
1494
724
e.setAttribute("name", name)
1495
725
e.setAttribute("type", prop._dbus_signature)
1496
726
e.setAttribute("access", prop._dbus_access)
1497
727
return e
1498
1499
728
for if_tag in document.getElementsByTagName("interface"):
1500
# Add property tags
1501
729
for tag in (make_tag(document, name, prop)
1502
730
for name, prop
1503
in self._get_all_dbus_things("property")
731
in self._get_all_dbus_properties()
1504
732
if prop._dbus_interface
1505
733
== if_tag.getAttribute("name")):
1506
734
if_tag.appendChild(tag)
1507
# Add annotation tags for properties
1508
for tag in if_tag.getElementsByTagName("property"):
1509
annots = dict()
1510
for name, prop in self._get_all_dbus_things(
1511
"property"):
1512
if (name == tag.getAttribute("name")
1513
and prop._dbus_interface
1514
== if_tag.getAttribute("name")):
1515
annots.update(getattr(
1516
prop, "_dbus_annotations", {}))
1517
for name, value in annots.items():
1518
ann_tag = document.createElement(
1519
"annotation")
1520
ann_tag.setAttribute("name", name)
1521
ann_tag.setAttribute("value", value)
1522
tag.appendChild(ann_tag)
1523
735
# Add the names to the return values for the
1524
736
# "org.freedesktop.DBus.Properties" methods
1525
737
if (if_tag.getAttribute("name")
1540
752
except (AttributeError, xml.dom.DOMException,
1541
753
xml.parsers.expat.ExpatError) as error:
1542
754
logger.error("Failed to override Introspection method",
1543
exc_info=error)
1544
return xmlstring
1545
1546
1547
try:
1548
dbus.OBJECT_MANAGER_IFACE
1549
except AttributeError:
1550
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1551
1552
1553
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1554
"""A D-Bus object with an ObjectManager.
1555
1556
Classes inheriting from this exposes the standard
1557
GetManagedObjects call and the InterfacesAdded and
1558
InterfacesRemoved signals on the standard
1559
"org.freedesktop.DBus.ObjectManager" interface.
1560
1561
Note: No signals are sent automatically; they must be sent
1562
manually.
1563
"""
1564
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1565
out_signature="a{oa{sa{sv}}}")
1566
def GetManagedObjects(self):
1567
"""This function must be overridden"""
1568
raise NotImplementedError()
1569
1570
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1571
signature="oa{sa{sv}}")
1572
def InterfacesAdded(self, object_path, interfaces_and_properties):
1573
pass
1574
1575
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1576
def InterfacesRemoved(self, object_path, interfaces):
1577
pass
1578
1579
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1580
out_signature="s",
1581
path_keyword='object_path',
1582
connection_keyword='connection')
1583
def Introspect(self, object_path, connection):
1584
"""Overloading of standard D-Bus method.
1585
1586
Override return argument name of GetManagedObjects to be
1587
"objpath_interfaces_and_properties"
1588
"""
1589
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1590
object_path,
1591
connection)
1592
try:
1593
document = xml.dom.minidom.parseString(xmlstring)
1594
1595
for if_tag in document.getElementsByTagName("interface"):
1596
# Fix argument name for the GetManagedObjects method
1597
if (if_tag.getAttribute("name")
1598
== dbus.OBJECT_MANAGER_IFACE):
1599
for cn in if_tag.getElementsByTagName("method"):
1600
if (cn.getAttribute("name")
1601
== "GetManagedObjects"):
1602
for arg in cn.getElementsByTagName("arg"):
1603
if (arg.getAttribute("direction")
1604
== "out"):
1605
arg.setAttribute(
1606
"name",
1607
"objpath_interfaces"
1608
"_and_properties")
1609
xmlstring = document.toxml("utf-8")
1610
document.unlink()
1611
except (AttributeError, xml.dom.DOMException,
1612
xml.parsers.expat.ExpatError) as error:
1613
logger.error("Failed to override Introspection method",
1614
exc_info=error)
1615
return xmlstring
1616
1617
1618
def datetime_to_dbus(dt, variant_level=0):
755
error)
756
return xmlstring
757
758
759
def datetime_to_dbus (dt, variant_level=0):
1619
760
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1620
761
if dt is None:
1621
return dbus.String("", variant_level=variant_level)
1622
return dbus.String(dt.isoformat(), variant_level=variant_level)
1623
1624
1625
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1626
"""A class decorator; applied to a subclass of
1627
dbus.service.Object, it will add alternate D-Bus attributes with
1628
interface names according to the "alt_interface_names" mapping.
1629
Usage:
1630
1631
@alternate_dbus_interfaces({"org.example.Interface":
1632
"net.example.AlternateInterface"})
1633
class SampleDBusObject(dbus.service.Object):
1634
@dbus.service.method("org.example.Interface")
1635
def SampleDBusMethod():
1636
pass
1637
1638
The above "SampleDBusMethod" on "SampleDBusObject" will be
1639
reachable via two interfaces: "org.example.Interface" and
1640
"net.example.AlternateInterface", the latter of which will have
1641
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1642
"true", unless "deprecate" is passed with a False value.
1643
1644
This works for methods and signals, and also for D-Bus properties
1645
(from DBusObjectWithProperties) and interfaces (from the
1646
dbus_interface_annotations decorator).
762
return dbus.String("", variant_level = variant_level)
763
return dbus.String(dt.isoformat(),
764
variant_level=variant_level)
765
766
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
767
.__metaclass__):
768
"""Applied to an empty subclass of a D-Bus object, this metaclass
769
will add additional D-Bus attributes matching a certain pattern.
1647
770
"""
1648
1649
def wrapper(cls):
1650
for orig_interface_name, alt_interface_name in (
1651
alt_interface_names.items()):
1652
attr = {}
1653
interface_names = set()
1654
# Go though all attributes of the class
1655
for attrname, attribute in inspect.getmembers(cls):
771
def __new__(mcs, name, bases, attr):
772
# Go through all the base classes which could have D-Bus
773
# methods, signals, or properties in them
774
for base in (b for b in bases
775
if issubclass(b, dbus.service.Object)):
776
# Go though all attributes of the base class
777
for attrname, attribute in inspect.getmembers(base):
1656
778
# Ignore non-D-Bus attributes, and D-Bus attributes
1657
779
# with the wrong interface name
1658
780
if (not hasattr(attribute, "_dbus_interface")
1659
or not attribute._dbus_interface.startswith(
1660
orig_interface_name)):
781
or not attribute._dbus_interface
782
.startswith("se.recompile.Mandos")):
1661
783
continue
1662
784
# Create an alternate D-Bus interface name based on
1663
785
# the current name
1664
alt_interface = attribute._dbus_interface.replace(
1665
orig_interface_name, alt_interface_name)
1666
interface_names.add(alt_interface)
786
alt_interface = (attribute._dbus_interface
787
.replace("se.recompile.Mandos",
788
"se.bsnet.fukt.Mandos"))
1667
789
# Is this a D-Bus signal?
1668
790
if getattr(attribute, "_dbus_is_signal", False):
1669
# Extract the original non-method undecorated
1670
# function by black magic
1671
if sys.version_info.major == 2:
1672
nonmethod_func = (dict(
791
# Extract the original non-method function by
792
# black magic
793
nonmethod_func = (dict(
1673
794
zip(attribute.func_code.co_freevars,
1674
attribute.__closure__))
1675
["func"].cell_contents)
1676
else:
1677
nonmethod_func = (dict(
1678
zip(attribute.__code__.co_freevars,
1679
attribute.__closure__))
1680
["func"].cell_contents)
795
attribute.__closure__))["func"]
796
.cell_contents)
1681
797
# Create a new, but exactly alike, function
1682
798
# object, and decorate it to be a new D-Bus signal
1683
799
# with the alternate D-Bus interface name
1684
new_function = copy_function(nonmethod_func)
1685
new_function = (dbus.service.signal(
1686
alt_interface,
1687
attribute._dbus_signature)(new_function))
1688
# Copy annotations, if any
1689
try:
1690
new_function._dbus_annotations = dict(
1691
attribute._dbus_annotations)
1692
except AttributeError:
1693
pass
1694
800
new_function = (dbus.service.signal
801
(alt_interface,
802
attribute._dbus_signature)
803
(types.FunctionType(
804
nonmethod_func.func_code,
805
nonmethod_func.func_globals,
806
nonmethod_func.func_name,
807
nonmethod_func.func_defaults,
808
nonmethod_func.func_closure)))
1695
809
# Define a creator of a function to call both the
1696
# original and alternate functions, so both the
1697
# original and alternate signals gets sent when
1698
# the function is called
810
# old and new functions, so both the old and new
811
# signals gets sent when the function is called
1699
812
def fixscope(func1, func2):
1700
813
"""This function is a scope container to pass
1701
814
func1 and func2 to the "call_both" function
1702
815
outside of its arguments"""
1703
1704
@functools.wraps(func2)
1705
816
def call_both(*args, **kwargs):
1706
817
"""This function will emit two D-Bus
1707
818
signals by calling func1 and func2"""
1708
819
func1(*args, **kwargs)
1709
820
func2(*args, **kwargs)
1710
# Make wrapper function look like a D-Bus
1711
# signal
1712
for name, attr in inspect.getmembers(func2):
1713
if name.startswith("_dbus_"):
1714
setattr(call_both, name, attr)
1715
1716
821
return call_both
1717
822
# Create the "call_both" function and add it to
1718
823
# the class
1719
attr[attrname] = fixscope(attribute, new_function)
824
attr[attrname] = fixscope(attribute,
825
new_function)
1720
826
# Is this a D-Bus method?
1721
827
elif getattr(attribute, "_dbus_is_method", False):
1722
828
# Create a new, but exactly alike, function
1723
829
# object. Decorate it to be a new D-Bus method
1724
830
# with the alternate D-Bus interface name. Add it
1725
831
# to the class.
1726
attr[attrname] = (
1727
dbus.service.method(
1728
alt_interface,
1729
attribute._dbus_in_signature,
1730
attribute._dbus_out_signature)
1731
(copy_function(attribute)))
1732
# Copy annotations, if any
1733
try:
1734
attr[attrname]._dbus_annotations = dict(
1735
attribute._dbus_annotations)
1736
except AttributeError:
1737
pass
832
attr[attrname] = (dbus.service.method
833
(alt_interface,
834
attribute._dbus_in_signature,
835
attribute._dbus_out_signature)
836
(types.FunctionType
837
(attribute.func_code,
838
attribute.func_globals,
839
attribute.func_name,
840
attribute.func_defaults,
841
attribute.func_closure)))
1738
842
# Is this a D-Bus property?
1739
843
elif getattr(attribute, "_dbus_is_property", False):
1740
844
# Create a new, but exactly alike, function
1741
845
# object, and decorate it to be a new D-Bus
1742
846
# property with the alternate D-Bus interface
1743
847
# name. Add it to the class.
1744
attr[attrname] = (dbus_service_property(
1745
alt_interface, attribute._dbus_signature,
1746
attribute._dbus_access,
1747
attribute._dbus_get_args_options
1748
["byte_arrays"])
1749
(copy_function(attribute)))
1750
# Copy annotations, if any
1751
try:
1752
attr[attrname]._dbus_annotations = dict(
1753
attribute._dbus_annotations)
1754
except AttributeError:
1755
pass
1756
# Is this a D-Bus interface?
1757
elif getattr(attribute, "_dbus_is_interface", False):
1758
# Create a new, but exactly alike, function
1759
# object. Decorate it to be a new D-Bus interface
1760
# with the alternate D-Bus interface name. Add it
1761
# to the class.
1762
attr[attrname] = (
1763
dbus_interface_annotations(alt_interface)
1764
(copy_function(attribute)))
1765
if deprecate:
1766
# Deprecate all alternate interfaces
1767
iname = "_AlternateDBusNames_interface_annotation{}"
1768
for interface_name in interface_names:
1769
1770
@dbus_interface_annotations(interface_name)
1771
def func(self):
1772
return {"org.freedesktop.DBus.Deprecated":
1773
"true"}
1774
# Find an unused name
1775
for aname in (iname.format(i)
1776
for i in itertools.count()):
1777
if aname not in attr:
1778
attr[aname] = func
1779
break
1780
if interface_names:
1781
# Replace the class with a new subclass of it with
1782
# methods, signals, etc. as created above.
1783
if sys.version_info.major == 2:
1784
cls = type(b"{}Alternate".format(cls.__name__),
1785
(cls, ), attr)
1786
else:
1787
cls = type("{}Alternate".format(cls.__name__),
1788
(cls, ), attr)
1789
return cls
1790
1791
return wrapper
1792
1793
1794
@alternate_dbus_interfaces({"se.recompile.Mandos":
1795
"se.bsnet.fukt.Mandos"})
848
attr[attrname] = (dbus_service_property
849
(alt_interface,
850
attribute._dbus_signature,
851
attribute._dbus_access,
852
attribute
853
._dbus_get_args_options
854
["byte_arrays"])
855
(types.FunctionType
856
(attribute.func_code,
857
attribute.func_globals,
858
attribute.func_name,
859
attribute.func_defaults,
860
attribute.func_closure)))
861
return type.__new__(mcs, name, bases, attr)
862
1796
863
class ClientDBus(Client, DBusObjectWithProperties):
1797
864
"""A Client class using D-Bus
1798
865
1799
866
Attributes:
1800
867
dbus_object_path: dbus.ObjectPath
1801
868
bus: dbus.SystemBus()
1802
869
"""
1803
870
1804
871
runtime_expansions = (Client.runtime_expansions
1805
+ ("dbus_object_path", ))
1806
1807
_interface = "se.recompile.Mandos.Client"
1808
872
+ ("dbus_object_path",))
873
1809
874
# dbus.service.Object doesn't use super(), so we can't either.
1810
1811
def __init__(self, bus=None, *args, **kwargs):
875
876
def __init__(self, bus = None, *args, **kwargs):
877
self._approvals_pending = 0
1812
878
self.bus = bus
1813
879
Client.__init__(self, *args, **kwargs)
1814
880
# Only now, when this client is initialized, can it show up on
1815
881
# the D-Bus
1816
client_object_name = str(self.name).translate(
882
client_object_name = unicode(self.name).translate(
1817
883
{ord("."): ord("_"),
1818
884
ord("-"): ord("_")})
1819
self.dbus_object_path = dbus.ObjectPath(
1820
"/clients/" + client_object_name)
885
self.dbus_object_path = (dbus.ObjectPath
886
("/clients/" + client_object_name))
1821
887
DBusObjectWithProperties.__init__(self, self.bus,
1822
888
self.dbus_object_path)
1823
1824
def notifychangeproperty(transform_func, dbus_name,
1825
type_func=lambda x: x,
1826
variant_level=1,
1827
invalidate_only=False,
1828
_interface=_interface):
889
890
def notifychangeproperty(transform_func,
891
dbus_name, type_func=lambda x: x,
892
variant_level=1):
1829
893
""" Modify a variable so that it's a property which announces
1830
894
its changes to DBus.
1831
895
1836
900
to the D-Bus. Default: no transform
1837
901
variant_level: D-Bus variant level. Default: 1
1838
902
"""
1839
attrname = "_{}".format(dbus_name)
1840
903
attrname = "_{0}".format(dbus_name)
1841
904
def setter(self, value):
1842
905
if hasattr(self, "dbus_object_path"):
1843
906
if (not hasattr(self, attrname) or
1844
907
type_func(getattr(self, attrname, None))
1845
908
!= type_func(value)):
1846
if invalidate_only:
1847
self.PropertiesChanged(
1848
_interface, dbus.Dictionary(),
1849
dbus.Array((dbus_name, )))
1850
else:
1851
dbus_value = transform_func(
1852
type_func(value),
1853
variant_level=variant_level)
1854
self.PropertyChanged(dbus.String(dbus_name),
1855
dbus_value)
1856
self.PropertiesChanged(
1857
_interface,
1858
dbus.Dictionary({dbus.String(dbus_name):
1859
dbus_value}),
1860
dbus.Array())
909
dbus_value = transform_func(type_func(value),
910
variant_level
911
=variant_level)
912
self.PropertyChanged(dbus.String(dbus_name),
913
dbus_value)
1861
914
setattr(self, attrname, value)
1862
915
1863
916
return property(lambda self: getattr(self, attrname), setter)
1864
917
918
1865
919
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1866
920
approvals_pending = notifychangeproperty(dbus.Boolean,
1867
921
"ApprovalPending",
1868
type_func=bool)
922
type_func = bool)
1869
923
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1870
924
last_enabled = notifychangeproperty(datetime_to_dbus,
1871
925
"LastEnabled")
1872
checker = notifychangeproperty(
1873
dbus.Boolean, "CheckerRunning",
1874
type_func=lambda checker: checker is not None)
926
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
927
type_func = lambda checker:
928
checker is not None)
1875
929
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1876
930
"LastCheckedOK")
1877
last_checker_status = notifychangeproperty(dbus.Int16,
1878
"LastCheckerStatus")
1879
931
last_approval_request = notifychangeproperty(
1880
932
datetime_to_dbus, "LastApprovalRequest")
1881
933
approved_by_default = notifychangeproperty(dbus.Boolean,
1882
934
"ApprovedByDefault")
1883
approval_delay = notifychangeproperty(
1884
dbus.UInt64, "ApprovalDelay",
1885
type_func=lambda td: td.total_seconds() * 1000)
935
approval_delay = notifychangeproperty(dbus.UInt16,
936
"ApprovalDelay",
937
type_func =
938
_timedelta_to_milliseconds)
1886
939
approval_duration = notifychangeproperty(
1887
dbus.UInt64, "ApprovalDuration",
1888
type_func=lambda td: td.total_seconds() * 1000)
940
dbus.UInt16, "ApprovalDuration",
941
type_func = _timedelta_to_milliseconds)
1889
942
host = notifychangeproperty(dbus.String, "Host")
1890
timeout = notifychangeproperty(
1891
dbus.UInt64, "Timeout",
1892
type_func=lambda td: td.total_seconds() * 1000)
943
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
944
type_func =
945
_timedelta_to_milliseconds)
1893
946
extended_timeout = notifychangeproperty(
1894
dbus.UInt64, "ExtendedTimeout",
1895
type_func=lambda td: td.total_seconds() * 1000)
1896
interval = notifychangeproperty(
1897
dbus.UInt64, "Interval",
1898
type_func=lambda td: td.total_seconds() * 1000)
947
dbus.UInt16, "ExtendedTimeout",
948
type_func = _timedelta_to_milliseconds)
949
interval = notifychangeproperty(dbus.UInt16,
950
"Interval",
951
type_func =
952
_timedelta_to_milliseconds)
1899
953
checker_command = notifychangeproperty(dbus.String, "Checker")
1900
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1901
invalidate_only=True)
1902
954
1903
955
del notifychangeproperty
1904
956
1905
957
def __del__(self, *args, **kwargs):
1906
958
try:
1907
959
self.remove_from_connection()
1910
962
if hasattr(DBusObjectWithProperties, "__del__"):
1911
963
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1912
964
Client.__del__(self, *args, **kwargs)
1913
1914
def checker_callback(self, source, condition,
1915
connection, command, *args, **kwargs):
1916
ret = Client.checker_callback(self, source, condition,
1917
connection, command, *args,
1918
**kwargs)
1919
exitstatus = self.last_checker_status
1920
if exitstatus >= 0:
965
966
def checker_callback(self, pid, condition, command,
967
*args, **kwargs):
968
self.checker_callback_tag = None
969
self.checker = None
970
if os.WIFEXITED(condition):
971
exitstatus = os.WEXITSTATUS(condition)
1921
972
# Emit D-Bus signal
1922
973
self.CheckerCompleted(dbus.Int16(exitstatus),
1923
# This is specific to GNU libC
1924
dbus.Int64(exitstatus << 8),
974
dbus.Int64(condition),
1925
975
dbus.String(command))
1926
976
else:
1927
977
# Emit D-Bus signal
1928
978
self.CheckerCompleted(dbus.Int16(-1),
1929
dbus.Int64(
1930
# This is specific to GNU libC
1931
(exitstatus << 8)
1932
| self.last_checker_signal),
979
dbus.Int64(condition),
1933
980
dbus.String(command))
1934
return ret
1935
981
982
return Client.checker_callback(self, pid, condition, command,
983
*args, **kwargs)
984
1936
985
def start_checker(self, *args, **kwargs):
1937
old_checker_pid = getattr(self.checker, "pid", None)
986
old_checker = self.checker
987
if self.checker is not None:
988
old_checker_pid = self.checker.pid
989
else:
990
old_checker_pid = None
1938
991
r = Client.start_checker(self, *args, **kwargs)
1939
992
# Only if new checker process was started
1940
993
if (self.checker is not None
1942
995
# Emit D-Bus signal
1943
996
self.CheckerStarted(self.current_checker_command)
1944
997
return r
1945
998
1946
999
def _reset_approved(self):
1947
self.approved = None
1000
self._approved = None
1948
1001
return False
1949
1002
1950
1003
def approve(self, value=True):
1951
self.approved = value
1952
GLib.timeout_add(int(self.approval_duration.total_seconds()
1953
* 1000), self._reset_approved)
1954
1004
self.send_changedstate()
1955
1956
# D-Bus methods, signals & properties
1957
1958
# Interfaces
1959
1960
# Signals
1961
1005
self._approved = value
1006
gobject.timeout_add(_timedelta_to_milliseconds
1007
(self.approval_duration),
1008
self._reset_approved)
1009
1010
1011
## D-Bus methods, signals & properties
1012
_interface = "se.recompile.Mandos.Client"
1013
1014
## Signals
1015
1962
1016
# CheckerCompleted - signal
1963
1017
@dbus.service.signal(_interface, signature="nxs")
1964
1018
def CheckerCompleted(self, exitcode, waitstatus, command):
1965
1019
"D-Bus signal"
1966
1020
pass
1967
1021
1968
1022
# CheckerStarted - signal
1969
1023
@dbus.service.signal(_interface, signature="s")
1970
1024
def CheckerStarted(self, command):
1971
1025
"D-Bus signal"
1972
1026
pass
1973
1027
1974
1028
# PropertyChanged - signal
1975
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1976
1029
@dbus.service.signal(_interface, signature="sv")
1977
1030
def PropertyChanged(self, property, value):
1978
1031
"D-Bus signal"
1979
1032
pass
1980
1033
1981
1034
# GotSecret - signal
1982
1035
@dbus.service.signal(_interface)
1983
1036
def GotSecret(self):
1986
1039
server to mandos-client
1987
1040
"""
1988
1041
pass
1989
1042
1990
1043
# Rejected - signal
1991
1044
@dbus.service.signal(_interface, signature="s")
1992
1045
def Rejected(self, reason):
1993
1046
"D-Bus signal"
1994
1047
pass
1995
1048
1996
1049
# NeedApproval - signal
1997
1050
@dbus.service.signal(_interface, signature="tb")
1998
1051
def NeedApproval(self, timeout, default):
1999
1052
"D-Bus signal"
2000
1053
return self.need_approval()
2001
2002
# Methods
2003
1054
1055
## Methods
1056
2004
1057
# Approve - method
2005
1058
@dbus.service.method(_interface, in_signature="b")
2006
1059
def Approve(self, value):
2007
1060
self.approve(value)
2008
1061
2009
1062
# CheckedOK - method
2010
1063
@dbus.service.method(_interface)
2011
1064
def CheckedOK(self):
2012
1065
self.checked_ok()
2013
1066
2014
1067
# Enable - method
2015
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2016
1068
@dbus.service.method(_interface)
2017
1069
def Enable(self):
2018
1070
"D-Bus method"
2019
1071
self.enable()
2020
1072
2021
1073
# StartChecker - method
2022
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2023
1074
@dbus.service.method(_interface)
2024
1075
def StartChecker(self):
2025
1076
"D-Bus method"
2026
1077
self.start_checker()
2027
1078
2028
1079
# Disable - method
2029
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2030
1080
@dbus.service.method(_interface)
2031
1081
def Disable(self):
2032
1082
"D-Bus method"
2033
1083
self.disable()
2034
1084
2035
1085
# StopChecker - method
2036
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2037
1086
@dbus.service.method(_interface)
2038
1087
def StopChecker(self):
2039
1088
self.stop_checker()
2040
2041
# Properties
2042
1089
1090
## Properties
1091
2043
1092
# ApprovalPending - property
2044
1093
@dbus_service_property(_interface, signature="b", access="read")
2045
1094
def ApprovalPending_dbus_property(self):
2046
1095
return dbus.Boolean(bool(self.approvals_pending))
2047
1096
2048
1097
# ApprovedByDefault - property
2049
@dbus_service_property(_interface,
2050
signature="b",
1098
@dbus_service_property(_interface, signature="b",
2051
1099
access="readwrite")
2052
1100
def ApprovedByDefault_dbus_property(self, value=None):
2053
1101
if value is None: # get
2054
1102
return dbus.Boolean(self.approved_by_default)
2055
1103
self.approved_by_default = bool(value)
2056
1104
2057
1105
# ApprovalDelay - property
2058
@dbus_service_property(_interface,
2059
signature="t",
1106
@dbus_service_property(_interface, signature="t",
2060
1107
access="readwrite")
2061
1108
def ApprovalDelay_dbus_property(self, value=None):
2062
1109
if value is None: # get
2063
return dbus.UInt64(self.approval_delay.total_seconds()
2064
* 1000)
1110
return dbus.UInt64(self.approval_delay_milliseconds())
2065
1111
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2066
1112
2067
1113
# ApprovalDuration - property
2068
@dbus_service_property(_interface,
2069
signature="t",
1114
@dbus_service_property(_interface, signature="t",
2070
1115
access="readwrite")
2071
1116
def ApprovalDuration_dbus_property(self, value=None):
2072
1117
if value is None: # get
2073
return dbus.UInt64(self.approval_duration.total_seconds()
2074
* 1000)
1118
return dbus.UInt64(_timedelta_to_milliseconds(
1119
self.approval_duration))
2075
1120
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2076
1121
2077
1122
# Name - property
2078
@dbus_annotations(
2079
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2080
1123
@dbus_service_property(_interface, signature="s", access="read")
2081
1124
def Name_dbus_property(self):
2082
1125
return dbus.String(self.name)
2083
2084
# KeyID - property
2085
@dbus_annotations(
2086
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2087
@dbus_service_property(_interface, signature="s", access="read")
2088
def KeyID_dbus_property(self):
2089
return dbus.String(self.key_id)
2090
1126
2091
1127
# Fingerprint - property
2092
@dbus_annotations(
2093
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2094
1128
@dbus_service_property(_interface, signature="s", access="read")
2095
1129
def Fingerprint_dbus_property(self):
2096
1130
return dbus.String(self.fingerprint)
2097
1131
2098
1132
# Host - property
2099
@dbus_service_property(_interface,
2100
signature="s",
1133
@dbus_service_property(_interface, signature="s",
2101
1134
access="readwrite")
2102
1135
def Host_dbus_property(self, value=None):
2103
1136
if value is None: # get
2104
1137
return dbus.String(self.host)
2105
self.host = str(value)
2106
1138
self.host = value
1139
2107
1140
# Created - property
2108
@dbus_annotations(
2109
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2110
1141
@dbus_service_property(_interface, signature="s", access="read")
2111
1142
def Created_dbus_property(self):
2112
return datetime_to_dbus(self.created)
2113
1143
return dbus.String(datetime_to_dbus(self.created))
1144
2114
1145
# LastEnabled - property
2115
1146
@dbus_service_property(_interface, signature="s", access="read")
2116
1147
def LastEnabled_dbus_property(self):
2117
1148
return datetime_to_dbus(self.last_enabled)
2118
1149
2119
1150
# Enabled - property
2120
@dbus_service_property(_interface,
2121
signature="b",
1151
@dbus_service_property(_interface, signature="b",
2122
1152
access="readwrite")
2123
1153
def Enabled_dbus_property(self, value=None):
2124
1154
if value is None: # get
2127
1157
self.enable()
2128
1158
else:
2129
1159
self.disable()
2130
1160
2131
1161
# LastCheckedOK - property
2132
@dbus_service_property(_interface,
2133
signature="s",
1162
@dbus_service_property(_interface, signature="s",
2134
1163
access="readwrite")
2135
1164
def LastCheckedOK_dbus_property(self, value=None):
2136
1165
if value is not None:
2137
1166
self.checked_ok()
2138
1167
return
2139
1168
return datetime_to_dbus(self.last_checked_ok)
2140
2141
# LastCheckerStatus - property
2142
@dbus_service_property(_interface, signature="n", access="read")
2143
def LastCheckerStatus_dbus_property(self):
2144
return dbus.Int16(self.last_checker_status)
2145
1169
2146
1170
# Expires - property
2147
1171
@dbus_service_property(_interface, signature="s", access="read")
2148
1172
def Expires_dbus_property(self):
2149
1173
return datetime_to_dbus(self.expires)
2150
1174
2151
1175
# LastApprovalRequest - property
2152
1176
@dbus_service_property(_interface, signature="s", access="read")
2153
1177
def LastApprovalRequest_dbus_property(self):
2154
1178
return datetime_to_dbus(self.last_approval_request)
2155
1179
2156
1180
# Timeout - property
2157
@dbus_service_property(_interface,
2158
signature="t",
1181
@dbus_service_property(_interface, signature="t",
2159
1182
access="readwrite")
2160
1183
def Timeout_dbus_property(self, value=None):
2161
1184
if value is None: # get
2162
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2163
old_timeout = self.timeout
1185
return dbus.UInt64(self.timeout_milliseconds())
2164
1186
self.timeout = datetime.timedelta(0, 0, 0, value)
2165
# Reschedule disabling
2166
if self.enabled:
2167
now = datetime.datetime.utcnow()
2168
self.expires += self.timeout - old_timeout
2169
if self.expires <= now:
2170
# The timeout has passed
2171
self.disable()
2172
else:
2173
if (getattr(self, "disable_initiator_tag", None)
2174
is None):
2175
return
2176
GLib.source_remove(self.disable_initiator_tag)
2177
self.disable_initiator_tag = GLib.timeout_add(
2178
int((self.expires - now).total_seconds() * 1000),
2179
self.disable)
2180
1187
if getattr(self, "disable_initiator_tag", None) is None:
1188
return
1189
# Reschedule timeout
1190
gobject.source_remove(self.disable_initiator_tag)
1191
self.disable_initiator_tag = None
1192
self.expires = None
1193
time_to_die = _timedelta_to_milliseconds((self
1194
.last_checked_ok
1195
+ self.timeout)
1196
- datetime.datetime
1197
.utcnow())
1198
if time_to_die <= 0:
1199
# The timeout has passed
1200
self.disable()
1201
else:
1202
self.expires = (datetime.datetime.utcnow()
1203
+ datetime.timedelta(milliseconds =
1204
time_to_die))
1205
self.disable_initiator_tag = (gobject.timeout_add
1206
(time_to_die, self.disable))
1207
2181
1208
# ExtendedTimeout - property
2182
@dbus_service_property(_interface,
2183
signature="t",
1209
@dbus_service_property(_interface, signature="t",
2184
1210
access="readwrite")
2185
1211
def ExtendedTimeout_dbus_property(self, value=None):
2186
1212
if value is None: # get
2187
return dbus.UInt64(self.extended_timeout.total_seconds()
2188
* 1000)
1213
return dbus.UInt64(self.extended_timeout_milliseconds())
2189
1214
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2190
1215
2191
1216
# Interval - property
2192
@dbus_service_property(_interface,
2193
signature="t",
1217
@dbus_service_property(_interface, signature="t",
2194
1218
access="readwrite")
2195
1219
def Interval_dbus_property(self, value=None):
2196
1220
if value is None: # get
2197
return dbus.UInt64(self.interval.total_seconds() * 1000)
1221
return dbus.UInt64(self.interval_milliseconds())
2198
1222
self.interval = datetime.timedelta(0, 0, 0, value)
2199
1223
if getattr(self, "checker_initiator_tag", None) is None:
2200
1224
return
2201
if self.enabled:
2202
# Reschedule checker run
2203
GLib.source_remove(self.checker_initiator_tag)
2204
self.checker_initiator_tag = GLib.timeout_add(
2205
value, self.start_checker)
2206
self.start_checker() # Start one now, too
2207
1225
# Reschedule checker run
1226
gobject.source_remove(self.checker_initiator_tag)
1227
self.checker_initiator_tag = (gobject.timeout_add
1228
(value, self.start_checker))
1229
self.start_checker() # Start one now, too
1230
2208
1231
# Checker - property
2209
@dbus_service_property(_interface,
2210
signature="s",
1232
@dbus_service_property(_interface, signature="s",
2211
1233
access="readwrite")
2212
1234
def Checker_dbus_property(self, value=None):
2213
1235
if value is None: # get
2214
1236
return dbus.String(self.checker_command)
2215
self.checker_command = str(value)
2216
1237
self.checker_command = value
1238
2217
1239
# CheckerRunning - property
2218
@dbus_service_property(_interface,
2219
signature="b",
1240
@dbus_service_property(_interface, signature="b",
2220
1241
access="readwrite")
2221
1242
def CheckerRunning_dbus_property(self, value=None):
2222
1243
if value is None: # get
2225
1246
self.start_checker()
2226
1247
else:
2227
1248
self.stop_checker()
2228
1249
2229
1250
# ObjectPath - property
2230
@dbus_annotations(
2231
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2232
"org.freedesktop.DBus.Deprecated": "true"})
2233
1251
@dbus_service_property(_interface, signature="o", access="read")
2234
1252
def ObjectPath_dbus_property(self):
2235
return self.dbus_object_path # is already a dbus.ObjectPath
2236
1253
return self.dbus_object_path # is already a dbus.ObjectPath
1254
2237
1255
# Secret = property
2238
@dbus_annotations(
2239
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2240
"invalidates"})
2241
@dbus_service_property(_interface,
2242
signature="ay",
2243
access="write",
2244
byte_arrays=True)
1256
@dbus_service_property(_interface, signature="ay",
1257
access="write", byte_arrays=True)
2245
1258
def Secret_dbus_property(self, value):
2246
self.secret = bytes(value)
2247
1259
self.secret = str(value)
1260
2248
1261
del _interface
2249
1262
2250
1263
2251
class ProxyClient:
2252
def __init__(self, child_pipe, key_id, fpr, address):
1264
class ProxyClient(object):
1265
def __init__(self, child_pipe, fpr, address):
2253
1266
self._pipe = child_pipe
2254
self._pipe.send(('init', key_id, fpr, address))
1267
self._pipe.send(('init', fpr, address))
2255
1268
if not self._pipe.recv():
2256
raise KeyError(key_id or fpr)
2257
1269
raise KeyError()
1270
2258
1271
def __getattribute__(self, name):
2259
if name == '_pipe':
1272
if(name == '_pipe'):
2260
1273
return super(ProxyClient, self).__getattribute__(name)
2261
1274
self._pipe.send(('getattr', name))
2262
1275
data = self._pipe.recv()
2263
1276
if data[0] == 'data':
2264
1277
return data[1]
2265
1278
if data[0] == 'function':
2266
2267
1279
def func(*args, **kwargs):
2268
1280
self._pipe.send(('funcall', name, args, kwargs))
2269
1281
return self._pipe.recv()[1]
2270
2271
1282
return func
2272
1283
2273
1284
def __setattr__(self, name, value):
2274
if name == '_pipe':
1285
if(name == '_pipe'):
2275
1286
return super(ProxyClient, self).__setattr__(name, value)
2276
1287
self._pipe.send(('setattr', name, value))
2277
1288
1289
class ClientDBusTransitional(ClientDBus):
1290
__metaclass__ = AlternateDBusNamesMetaclass
2278
1291
2279
1292
class ClientHandler(socketserver.BaseRequestHandler, object):
2280
1293
"""A class to handle client connections.
2281
1294
2282
1295
Instantiated once for each connection to handle it.
2283
1296
Note: This will run in its own forked process."""
2284
1297
2285
1298
def handle(self):
2286
1299
with contextlib.closing(self.server.child_pipe) as child_pipe:
2287
1300
logger.info("TCP connection from: %s",
2288
str(self.client_address))
1301
unicode(self.client_address))
2289
1302
logger.debug("Pipe FD: %d",
2290
1303
self.server.child_pipe.fileno())
2291
2292
session = gnutls.ClientSession(self.request)
2293
2294
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2295
# "+AES-256-CBC", "+SHA1",
2296
# "+COMP-NULL", "+CTYPE-OPENPGP",
2297
# "+DHE-DSS"))
1304
1305
session = (gnutls.connection
1306
.ClientSession(self.request,
1307
gnutls.connection
1308
.X509Credentials()))
1309
1310
# Note: gnutls.connection.X509Credentials is really a
1311
# generic GnuTLS certificate credentials object so long as
1312
# no X.509 keys are added to it. Therefore, we can use it
1313
# here despite using OpenPGP certificates.
1314
1315
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1316
# "+AES-256-CBC", "+SHA1",
1317
# "+COMP-NULL", "+CTYPE-OPENPGP",
1318
# "+DHE-DSS"))
2298
1319
# Use a fallback default, since this MUST be set.
2299
1320
priority = self.server.gnutls_priority
2300
1321
if priority is None:
2301
1322
priority = "NORMAL"
2302
gnutls.priority_set_direct(session._c_object,
2303
priority.encode("utf-8"),
2304
None)
2305
1323
(gnutls.library.functions
1324
.gnutls_priority_set_direct(session._c_object,
1325
priority, None))
1326
2306
1327
# Start communication using the Mandos protocol
2307
1328
# Get protocol number
2308
1329
line = self.request.makefile().readline()
2309
1330
logger.debug("Protocol version: %r", line)
2310
1331
try:
2311
1332
if int(line.strip().split()[0]) > 1:
2312
raise RuntimeError(line)
1333
raise RuntimeError
2313
1334
except (ValueError, IndexError, RuntimeError) as error:
2314
1335
logger.error("Unknown protocol version: %s", error)
2315
1336
return
2316
1337
2317
1338
# Start GnuTLS connection
2318
1339
try:
2319
1340
session.handshake()
2320
except gnutls.Error as error:
1341
except gnutls.errors.GNUTLSError as error:
2321
1342
logger.warning("Handshake failed: %s", error)
2322
1343
# Do not run session.bye() here: the session is not
2323
1344
# established. Just abandon the request.
2324
1345
return
2325
1346
logger.debug("Handshake succeeded")
2326
1347
2327
1348
approval_required = False
2328
1349
try:
2329
if gnutls.has_rawpk:
2330
fpr = b""
2331
try:
2332
key_id = self.key_id(
2333
self.peer_certificate(session))
2334
except (TypeError, gnutls.Error) as error:
2335
logger.warning("Bad certificate: %s", error)
2336
return
2337
logger.debug("Key ID: %s", key_id)
2338
2339
else:
2340
key_id = b""
2341
try:
2342
fpr = self.fingerprint(
2343
self.peer_certificate(session))
2344
except (TypeError, gnutls.Error) as error:
2345
logger.warning("Bad certificate: %s", error)
2346
return
2347
logger.debug("Fingerprint: %s", fpr)
2348
2349
try:
2350
client = ProxyClient(child_pipe, key_id, fpr,
1350
try:
1351
fpr = self.fingerprint(self.peer_certificate
1352
(session))
1353
except (TypeError,
1354
gnutls.errors.GNUTLSError) as error:
1355
logger.warning("Bad certificate: %s", error)
1356
return
1357
logger.debug("Fingerprint: %s", fpr)
1358
1359
try:
1360
client = ProxyClient(child_pipe, fpr,
2351
1361
self.client_address)
2352
1362
except KeyError:
2353
1363
return
2354
1364
2355
1365
if client.approval_delay:
2356
1366
delay = client.approval_delay
2357
1367
client.approvals_pending += 1
2358
1368
approval_required = True
2359
1369
2360
1370
while True:
2361
1371
if not client.enabled:
2362
1372
logger.info("Client %s is disabled",
2363
client.name)
1373
client.name)
2364
1374
if self.server.use_dbus:
2365
1375
# Emit D-Bus signal
2366
1376
client.Rejected("Disabled")
2367
1377
return
2368
2369
if client.approved or not client.approval_delay:
2370
# We are approved or approval is disabled
1378
1379
if client._approved or not client.approval_delay:
1380
#We are approved or approval is disabled
2371
1381
break
2372
elif client.approved is None:
1382
elif client._approved is None:
2373
1383
logger.info("Client %s needs approval",
2374
1384
client.name)
2375
1385
if self.server.use_dbus:
2376
1386
# Emit D-Bus signal
2377
1387
client.NeedApproval(
2378
client.approval_delay.total_seconds()
2379
* 1000, client.approved_by_default)
1388
client.approval_delay_milliseconds(),
1389
client.approved_by_default)
2380
1390
else:
2381
1391
logger.warning("Client %s was not approved",
2382
1392
client.name)
2384
1394
# Emit D-Bus signal
2385
1395
client.Rejected("Denied")
2386
1396
return
2387
2388
# wait until timeout or approved
1397
1398
#wait until timeout or approved
2389
1399
time = datetime.datetime.now()
2390
1400
client.changedstate.acquire()
2391
client.changedstate.wait(delay.total_seconds())
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1403
/ 1000)))
2392
1404
client.changedstate.release()
2393
1405
time2 = datetime.datetime.now()
2394
1406
if (time2 - time) >= delay:
2404
1416
break
2405
1417
else:
2406
1418
delay -= time2 - time
2407
2408
try:
2409
session.send(client.secret)
2410
except gnutls.Error as error:
2411
logger.warning("gnutls send failed",
2412
exc_info=error)
2413
return
2414
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
2415
1432
logger.info("Sending secret to %s", client.name)
2416
1433
# bump the timeout using extended_timeout
2417
client.bump_timeout(client.extended_timeout)
1434
client.checked_ok(client.extended_timeout)
2418
1435
if self.server.use_dbus:
2419
1436
# Emit D-Bus signal
2420
1437
client.GotSecret()
2421
1438
2422
1439
finally:
2423
1440
if approval_required:
2424
1441
client.approvals_pending -= 1
2425
1442
try:
2426
1443
session.bye()
2427
except gnutls.Error as error:
2428
logger.warning("GnuTLS bye failed",
2429
exc_info=error)
2430
1444
except gnutls.errors.GNUTLSError as error:
1445
logger.warning("GnuTLS bye failed")
1446
2431
1447
@staticmethod
2432
1448
def peer_certificate(session):
2433
"Return the peer's certificate as a bytestring"
2434
try:
2435
cert_type = gnutls.certificate_type_get2(session._c_object,
2436
gnutls.CTYPE_PEERS)
2437
except AttributeError:
2438
cert_type = gnutls.certificate_type_get(session._c_object)
2439
if gnutls.has_rawpk:
2440
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2441
else:
2442
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2443
# If not a valid certificate type...
2444
if cert_type not in valid_cert_types:
2445
logger.info("Cert type %r not in %r", cert_type,
2446
valid_cert_types)
2447
# ...return invalid data
2448
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
2449
1456
list_size = ctypes.c_uint(1)
2450
cert_list = (gnutls.certificate_get_peers
1457
cert_list = (gnutls.library.functions
1458
.gnutls_certificate_get_peers
2451
1459
(session._c_object, ctypes.byref(list_size)))
2452
1460
if not bool(cert_list) and list_size.value != 0:
2453
raise gnutls.Error("error getting peer certificate")
1461
raise gnutls.errors.GNUTLSError("error getting peer"
1462
" certificate")
2454
1463
if list_size.value == 0:
2455
1464
return None
2456
1465
cert = cert_list[0]
2457
1466
return ctypes.string_at(cert.data, cert.size)
2458
2459
@staticmethod
2460
def key_id(certificate):
2461
"Convert a certificate bytestring to a hexdigit key ID"
2462
# New GnuTLS "datum" with the public key
2463
datum = gnutls.datum_t(
2464
ctypes.cast(ctypes.c_char_p(certificate),
2465
ctypes.POINTER(ctypes.c_ubyte)),
2466
ctypes.c_uint(len(certificate)))
2467
# XXX all these need to be created in the gnutls "module"
2468
# New empty GnuTLS certificate
2469
pubkey = gnutls.pubkey_t()
2470
gnutls.pubkey_init(ctypes.byref(pubkey))
2471
# Import the raw public key into the certificate
2472
gnutls.pubkey_import(pubkey,
2473
ctypes.byref(datum),
2474
gnutls.X509_FMT_DER)
2475
# New buffer for the key ID
2476
buf = ctypes.create_string_buffer(32)
2477
buf_len = ctypes.c_size_t(len(buf))
2478
# Get the key ID from the raw public key into the buffer
2479
gnutls.pubkey_get_key_id(
2480
pubkey,
2481
gnutls.KEYID_USE_SHA256,
2482
ctypes.cast(ctypes.byref(buf),
2483
ctypes.POINTER(ctypes.c_ubyte)),
2484
ctypes.byref(buf_len))
2485
# Deinit the certificate
2486
gnutls.pubkey_deinit(pubkey)
2487
2488
# Convert the buffer to a Python bytestring
2489
key_id = ctypes.string_at(buf, buf_len.value)
2490
# Convert the bytestring to hexadecimal notation
2491
hex_key_id = binascii.hexlify(key_id).upper()
2492
return hex_key_id
2493
1467
2494
1468
@staticmethod
2495
1469
def fingerprint(openpgp):
2496
1470
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2497
1471
# New GnuTLS "datum" with the OpenPGP public key
2498
datum = gnutls.datum_t(
2499
ctypes.cast(ctypes.c_char_p(openpgp),
2500
ctypes.POINTER(ctypes.c_ubyte)),
2501
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))))
2502
1477
# New empty GnuTLS certificate
2503
crt = gnutls.openpgp_crt_t()
2504
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)))
2505
1481
# Import the OpenPGP public key into the certificate
2506
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2507
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))
2508
1486
# Verify the self signature in the key
2509
1487
crtverify = ctypes.c_uint()
2510
gnutls.openpgp_crt_verify_self(crt, 0,
2511
ctypes.byref(crtverify))
1488
(gnutls.library.functions
1489
.gnutls_openpgp_crt_verify_self(crt, 0,
1490
ctypes.byref(crtverify)))
2512
1491
if crtverify.value != 0:
2513
gnutls.openpgp_crt_deinit(crt)
2514
raise gnutls.CertificateSecurityError(code
2515
=crtverify.value)
1492
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1493
raise (gnutls.errors.CertificateSecurityError
1494
("Verify failed"))
2516
1495
# New buffer for the fingerprint
2517
1496
buf = ctypes.create_string_buffer(20)
2518
1497
buf_len = ctypes.c_size_t()
2519
1498
# Get the fingerprint from the certificate into the buffer
2520
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2521
ctypes.byref(buf_len))
1499
(gnutls.library.functions
1500
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1501
ctypes.byref(buf_len)))
2522
1502
# Deinit the certificate
2523
gnutls.openpgp_crt_deinit(crt)
1503
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2524
1504
# Convert the buffer to a Python bytestring
2525
1505
fpr = ctypes.string_at(buf, buf_len.value)
2526
1506
# Convert the bytestring to hexadecimal notation
2527
hex_fpr = binascii.hexlify(fpr).upper()
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2528
1508
return hex_fpr
2529
1509
2530
1510
2531
class MultiprocessingMixIn:
1511
class MultiprocessingMixIn(object):
2532
1512
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2533
2534
1513
def sub_process_main(self, request, address):
2535
1514
try:
2536
1515
self.finish_request(request, address)
2537
except Exception:
1516
except:
2538
1517
self.handle_error(request, address)
2539
1518
self.close_request(request)
2540
1519
2541
1520
def process_request(self, request, address):
2542
1521
"""Start a new process to process the request."""
2543
proc = multiprocessing.Process(target=self.sub_process_main,
2544
args=(request, address))
1522
proc = multiprocessing.Process(target = self.sub_process_main,
1523
args = (request,
1524
address))
2545
1525
proc.start()
2546
1526
return proc
2547
1527
2548
1528
2549
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1529
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2550
1530
""" adds a pipe to the MixIn """
2551
2552
1531
def process_request(self, request, client_address):
2553
1532
"""Overrides and wraps the original process_request().
2554
1533
2555
1534
This function creates a new pipe in self.pipe
2556
1535
"""
2557
1536
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2558
1537
2559
1538
proc = MultiprocessingMixIn.process_request(self, request,
2560
1539
client_address)
2561
1540
self.child_pipe.close()
2562
1541
self.add_pipe(parent_pipe, proc)
2563
1542
2564
1543
def add_pipe(self, parent_pipe, proc):
2565
1544
"""Dummy function; override as necessary"""
2566
raise NotImplementedError()
1545
raise NotImplementedError
2567
1546
2568
1547
2569
1548
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2570
socketserver.TCPServer):
1549
socketserver.TCPServer, object):
2571
1550
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2572
1551
2573
1552
Attributes:
2574
1553
enabled: Boolean; whether this server is activated yet
2575
1554
interface: None or a network interface name (string)
2576
1555
use_ipv6: Boolean; to use IPv6 or not
2577
1556
"""
2578
2579
1557
def __init__(self, server_address, RequestHandlerClass,
2580
interface=None,
2581
use_ipv6=True,
2582
socketfd=None):
2583
"""If socketfd is set, use that file descriptor instead of
2584
creating a new one with socket.socket().
2585
"""
1558
interface=None, use_ipv6=True):
2586
1559
self.interface = interface
2587
1560
if use_ipv6:
2588
1561
self.address_family = socket.AF_INET6
2589
if socketfd is not None:
2590
# Save the file descriptor
2591
self.socketfd = socketfd
2592
# Save the original socket.socket() function
2593
self.socket_socket = socket.socket
2594
2595
# To implement --socket, we monkey patch socket.socket.
2596
#
2597
# (When socketserver.TCPServer is a new-style class, we
2598
# could make self.socket into a property instead of monkey
2599
# patching socket.socket.)
2600
#
2601
# Create a one-time-only replacement for socket.socket()
2602
@functools.wraps(socket.socket)
2603
def socket_wrapper(*args, **kwargs):
2604
# Restore original function so subsequent calls are
2605
# not affected.
2606
socket.socket = self.socket_socket
2607
del self.socket_socket
2608
# This time only, return a new socket object from the
2609
# saved file descriptor.
2610
return socket.fromfd(self.socketfd, *args, **kwargs)
2611
# Replace socket.socket() function with wrapper
2612
socket.socket = socket_wrapper
2613
# The socketserver.TCPServer.__init__ will call
2614
# socket.socket(), which might be our replacement,
2615
# socket_wrapper(), if socketfd was set.
2616
1562
socketserver.TCPServer.__init__(self, server_address,
2617
1563
RequestHandlerClass)
2618
2619
1564
def server_bind(self):
2620
1565
"""This overrides the normal server_bind() function
2621
1566
to bind to an interface if one was specified, and also NOT to
2622
1567
bind to an address or port if they were not specified."""
2623
global SO_BINDTODEVICE
2624
1568
if self.interface is not None:
2625
1569
if SO_BINDTODEVICE is None:
2626
# Fall back to a hard-coded value which seems to be
2627
# common enough.
2628
logger.warning("SO_BINDTODEVICE not found, trying 25")
2629
SO_BINDTODEVICE = 25
2630
try:
2631
self.socket.setsockopt(
2632
socket.SOL_SOCKET, SO_BINDTODEVICE,
2633
(self.interface + "\0").encode("utf-8"))
2634
except socket.error as error:
2635
if error.errno == errno.EPERM:
2636
logger.error("No permission to bind to"
2637
" interface %s", self.interface)
2638
elif error.errno == errno.ENOPROTOOPT:
2639
logger.error("SO_BINDTODEVICE not available;"
2640
" cannot bind to interface %s",
2641
self.interface)
2642
elif error.errno == errno.ENODEV:
2643
logger.error("Interface %s does not exist,"
2644
" cannot bind", self.interface)
2645
else:
2646
raise
1570
logger.error("SO_BINDTODEVICE does not exist;"
1571
" cannot bind to interface %s",
1572
self.interface)
1573
else:
1574
try:
1575
self.socket.setsockopt(socket.SOL_SOCKET,
1576
SO_BINDTODEVICE,
1577
str(self.interface
1578
+ '\0'))
1579
except socket.error as error:
1580
if error[0] == errno.EPERM:
1581
logger.error("No permission to"
1582
" bind to interface %s",
1583
self.interface)
1584
elif error[0] == errno.ENOPROTOOPT:
1585
logger.error("SO_BINDTODEVICE not available;"
1586
" cannot bind to interface %s",
1587
self.interface)
1588
else:
1589
raise
2647
1590
# Only bind(2) the socket if we really need to.
2648
1591
if self.server_address[0] or self.server_address[1]:
2649
if self.server_address[1]:
2650
self.allow_reuse_address = True
2651
1592
if not self.server_address[0]:
2652
1593
if self.address_family == socket.AF_INET6:
2653
any_address = "::" # in6addr_any
1594
any_address = "::" # in6addr_any
2654
1595
else:
2655
any_address = "0.0.0.0" # INADDR_ANY
1596
any_address = socket.INADDR_ANY
2656
1597
self.server_address = (any_address,
2657
1598
self.server_address[1])
2658
1599
elif not self.server_address[1]:
2659
self.server_address = (self.server_address[0], 0)
1600
self.server_address = (self.server_address[0],
1601
0)
2660
1602
# if self.interface:
2661
1603
# self.server_address = (self.server_address[0],
2662
1604
# 0, # port
2668
1610
2669
1611
class MandosServer(IPv6_TCPServer):
2670
1612
"""Mandos server.
2671
1613
2672
1614
Attributes:
2673
1615
clients: set of Client objects
2674
1616
gnutls_priority GnuTLS priority string
2675
1617
use_dbus: Boolean; to emit D-Bus signals or not
2676
2677
Assumes a GLib.MainLoop event loop.
1618
1619
Assumes a gobject.MainLoop event loop.
2678
1620
"""
2679
2680
1621
def __init__(self, server_address, RequestHandlerClass,
2681
interface=None,
2682
use_ipv6=True,
2683
clients=None,
2684
gnutls_priority=None,
2685
use_dbus=True,
2686
socketfd=None):
1622
interface=None, use_ipv6=True, clients=None,
1623
gnutls_priority=None, use_dbus=True):
2687
1624
self.enabled = False
2688
1625
self.clients = clients
2689
1626
if self.clients is None:
2690
self.clients = {}
1627
self.clients = set()
2691
1628
self.use_dbus = use_dbus
2692
1629
self.gnutls_priority = gnutls_priority
2693
1630
IPv6_TCPServer.__init__(self, server_address,
2694
1631
RequestHandlerClass,
2695
interface=interface,
2696
use_ipv6=use_ipv6,
2697
socketfd=socketfd)
2698
1632
interface = interface,
1633
use_ipv6 = use_ipv6)
2699
1634
def server_activate(self):
2700
1635
if self.enabled:
2701
1636
return socketserver.TCPServer.server_activate(self)
2702
1637
2703
1638
def enable(self):
2704
1639
self.enabled = True
2705
1640
2706
1641
def add_pipe(self, parent_pipe, proc):
2707
1642
# Call "handle_ipc" for both data and EOF events
2708
GLib.io_add_watch(
2709
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2710
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2711
functools.partial(self.handle_ipc,
2712
parent_pipe=parent_pipe,
2713
proc=proc))
2714
2715
def handle_ipc(self, source, condition,
2716
parent_pipe=None,
2717
proc=None,
2718
client_object=None):
1643
gobject.io_add_watch(parent_pipe.fileno(),
1644
gobject.IO_IN | gobject.IO_HUP,
1645
functools.partial(self.handle_ipc,
1646
parent_pipe =
1647
parent_pipe,
1648
proc = proc))
1649
1650
def handle_ipc(self, source, condition, parent_pipe=None,
1651
proc = None, client_object=None):
1652
condition_names = {
1653
gobject.IO_IN: "IN", # There is data to read.
1654
gobject.IO_OUT: "OUT", # Data can be written (without
1655
# blocking).
1656
gobject.IO_PRI: "PRI", # There is urgent data to read.
1657
gobject.IO_ERR: "ERR", # Error condition.
1658
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1659
# broken, usually for pipes and
1660
# sockets).
1661
}
1662
conditions_string = ' | '.join(name
1663
for cond, name in
1664
condition_names.iteritems()
1665
if cond & condition)
2719
1666
# error, or the other end of multiprocessing.Pipe has closed
2720
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1667
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2721
1668
# Wait for other process to exit
2722
1669
proc.join()
2723
1670
return False
2724
1671
2725
1672
# Read a request from the child
2726
1673
request = parent_pipe.recv()
2727
1674
command = request[0]
2728
1675
2729
1676
if command == 'init':
2730
key_id = request[1].decode("ascii")
2731
fpr = request[2].decode("ascii")
2732
address = request[3]
2733
2734
for c in self.clients.values():
2735
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2736
"27AE41E4649B934CA495991B7852B855"):
2737
continue
2738
if key_id and c.key_id == key_id:
2739
client = c
2740
break
2741
if fpr and c.fingerprint == fpr:
1677
fpr = request[1]
1678
address = request[2]
1679
1680
for c in self.clients:
1681
if c.fingerprint == fpr:
2742
1682
client = c
2743
1683
break
2744
1684
else:
2745
logger.info("Client not found for key ID: %s, address"
2746
": %s", key_id or fpr, address)
1685
logger.info("Client not found for fingerprint: %s, ad"
1686
"dress: %s", fpr, address)
2747
1687
if self.use_dbus:
2748
1688
# Emit D-Bus signal
2749
mandos_dbus_service.ClientNotFound(key_id or fpr,
1689
mandos_dbus_service.ClientNotFound(fpr,
2750
1690
address[0])
2751
1691
parent_pipe.send(False)
2752
1692
return False
2753
2754
GLib.io_add_watch(
2755
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2756
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2757
functools.partial(self.handle_ipc,
2758
parent_pipe=parent_pipe,
2759
proc=proc,
2760
client_object=client))
1693
1694
gobject.io_add_watch(parent_pipe.fileno(),
1695
gobject.IO_IN | gobject.IO_HUP,
1696
functools.partial(self.handle_ipc,
1697
parent_pipe =
1698
parent_pipe,
1699
proc = proc,
1700
client_object =
1701
client))
2761
1702
parent_pipe.send(True)
2762
1703
# remove the old hook in favor of the new above hook on
2763
1704
# same fileno
2766
1707
funcname = request[1]
2767
1708
args = request[2]
2768
1709
kwargs = request[3]
2769
1710
2770
1711
parent_pipe.send(('data', getattr(client_object,
2771
1712
funcname)(*args,
2772
**kwargs)))
2773
1713
**kwargs)))
1714
2774
1715
if command == 'getattr':
2775
1716
attrname = request[1]
2776
if isinstance(client_object.__getattribute__(attrname),
2777
collections.abc.Callable):
2778
parent_pipe.send(('function', ))
1717
if callable(client_object.__getattribute__(attrname)):
1718
parent_pipe.send(('function',))
2779
1719
else:
2780
parent_pipe.send((
2781
'data', client_object.__getattribute__(attrname)))
2782
1720
parent_pipe.send(('data', client_object
1721
.__getattribute__(attrname)))
1722
2783
1723
if command == 'setattr':
2784
1724
attrname = request[1]
2785
1725
value = request[2]
2786
1726
setattr(client_object, attrname, value)
2787
1727
2788
1728
return True
2789
1729
2790
1730
2791
def rfc3339_duration_to_delta(duration):
2792
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2793
2794
>>> timedelta = datetime.timedelta
2795
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2796
True
2797
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2798
True
2799
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2800
True
2801
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2802
True
2803
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2804
True
2805
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2806
True
2807
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2808
True
2809
>>> del timedelta
2810
"""
2811
2812
# Parsing an RFC 3339 duration with regular expressions is not
2813
# possible - there would have to be multiple places for the same
2814
# values, like seconds. The current code, while more esoteric, is
2815
# cleaner without depending on a parsing library. If Python had a
2816
# built-in library for parsing we would use it, but we'd like to
2817
# avoid excessive use of external libraries.
2818
2819
# New type for defining tokens, syntax, and semantics all-in-one
2820
Token = collections.namedtuple("Token", (
2821
"regexp", # To match token; if "value" is not None, must have
2822
# a "group" containing digits
2823
"value", # datetime.timedelta or None
2824
"followers")) # Tokens valid after this token
2825
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2826
# the "duration" ABNF definition in RFC 3339, Appendix A.
2827
token_end = Token(re.compile(r"$"), None, frozenset())
2828
token_second = Token(re.compile(r"(\d+)S"),
2829
datetime.timedelta(seconds=1),
2830
frozenset((token_end, )))
2831
token_minute = Token(re.compile(r"(\d+)M"),
2832
datetime.timedelta(minutes=1),
2833
frozenset((token_second, token_end)))
2834
token_hour = Token(re.compile(r"(\d+)H"),
2835
datetime.timedelta(hours=1),
2836
frozenset((token_minute, token_end)))
2837
token_time = Token(re.compile(r"T"),
2838
None,
2839
frozenset((token_hour, token_minute,
2840
token_second)))
2841
token_day = Token(re.compile(r"(\d+)D"),
2842
datetime.timedelta(days=1),
2843
frozenset((token_time, token_end)))
2844
token_month = Token(re.compile(r"(\d+)M"),
2845
datetime.timedelta(weeks=4),
2846
frozenset((token_day, token_end)))
2847
token_year = Token(re.compile(r"(\d+)Y"),
2848
datetime.timedelta(weeks=52),
2849
frozenset((token_month, token_end)))
2850
token_week = Token(re.compile(r"(\d+)W"),
2851
datetime.timedelta(weeks=1),
2852
frozenset((token_end, )))
2853
token_duration = Token(re.compile(r"P"), None,
2854
frozenset((token_year, token_month,
2855
token_day, token_time,
2856
token_week)))
2857
# Define starting values:
2858
# Value so far
2859
value = datetime.timedelta()
2860
found_token = None
2861
# Following valid tokens
2862
followers = frozenset((token_duration, ))
2863
# String left to parse
2864
s = duration
2865
# Loop until end token is found
2866
while found_token is not token_end:
2867
# Search for any currently valid tokens
2868
for token in followers:
2869
match = token.regexp.match(s)
2870
if match is not None:
2871
# Token found
2872
if token.value is not None:
2873
# Value found, parse digits
2874
factor = int(match.group(1), 10)
2875
# Add to value so far
2876
value += factor * token.value
2877
# Strip token from string
2878
s = token.regexp.sub("", s, 1)
2879
# Go to found token
2880
found_token = token
2881
# Set valid next tokens
2882
followers = found_token.followers
2883
break
2884
else:
2885
# No currently valid tokens were found
2886
raise ValueError("Invalid RFC 3339 duration: {!r}"
2887
.format(duration))
2888
# End token found
2889
return value
2890
2891
2892
1731
def string_to_delta(interval):
2893
1732
"""Parse a string and return a datetime.timedelta
2894
2895
>>> string_to_delta('7d') == datetime.timedelta(7)
2896
True
2897
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2898
True
2899
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2900
True
2901
>>> string_to_delta('24h') == datetime.timedelta(1)
2902
True
2903
>>> string_to_delta('1w') == datetime.timedelta(7)
2904
True
2905
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2906
True
1733
1734
>>> string_to_delta('7d')
1735
datetime.timedelta(7)
1736
>>> string_to_delta('60s')
1737
datetime.timedelta(0, 60)
1738
>>> string_to_delta('60m')
1739
datetime.timedelta(0, 3600)
1740
>>> string_to_delta('24h')
1741
datetime.timedelta(1)
1742
>>> string_to_delta('1w')
1743
datetime.timedelta(7)
1744
>>> string_to_delta('5m 30s')
1745
datetime.timedelta(0, 330)
2907
1746
"""
2908
2909
try:
2910
return rfc3339_duration_to_delta(interval)
2911
except ValueError:
2912
pass
2913
2914
1747
timevalue = datetime.timedelta(0)
2915
1748
for s in interval.split():
2916
1749
try:
2917
suffix = s[-1]
1750
suffix = unicode(s[-1])
2918
1751
value = int(s[:-1])
2919
1752
if suffix == "d":
2920
1753
delta = datetime.timedelta(value)
2927
1760
elif suffix == "w":
2928
1761
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2929
1762
else:
2930
raise ValueError("Unknown suffix {!r}".format(suffix))
2931
except IndexError as e:
1763
raise ValueError("Unknown suffix %r" % suffix)
1764
except (ValueError, IndexError) as e:
2932
1765
raise ValueError(*(e.args))
2933
1766
timevalue += delta
2934
1767
return timevalue
2935
1768
2936
1769
2937
def daemon(nochdir=False, noclose=False):
1770
def if_nametoindex(interface):
1771
"""Call the C function if_nametoindex(), or equivalent
1772
1773
Note: This function cannot accept a unicode string."""
1774
global if_nametoindex
1775
try:
1776
if_nametoindex = (ctypes.cdll.LoadLibrary
1777
(ctypes.util.find_library("c"))
1778
.if_nametoindex)
1779
except (OSError, AttributeError):
1780
logger.warning("Doing if_nametoindex the hard way")
1781
def if_nametoindex(interface):
1782
"Get an interface index the hard way, i.e. using fcntl()"
1783
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1784
with contextlib.closing(socket.socket()) as s:
1785
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1786
struct.pack(str("16s16x"),
1787
interface))
1788
interface_index = struct.unpack(str("I"),
1789
ifreq[16:20])[0]
1790
return interface_index
1791
return if_nametoindex(interface)
1792
1793
1794
def daemon(nochdir = False, noclose = False):
2938
1795
"""See daemon(3). Standard BSD Unix function.
2939
1796
2940
1797
This should really exist as os.daemon, but it doesn't (yet)."""
2941
1798
if os.fork():
2942
1799
sys.exit()
2947
1804
sys.exit()
2948
1805
if not noclose:
2949
1806
# Close all standard open file descriptors
2950
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1807
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2951
1808
if not stat.S_ISCHR(os.fstat(null).st_mode):
2952
1809
raise OSError(errno.ENODEV,
2953
"{} not a character device"
2954
.format(os.devnull))
1810
"%s not a character device"
1811
% os.path.devnull)
2955
1812
os.dup2(null, sys.stdin.fileno())
2956
1813
os.dup2(null, sys.stdout.fileno())
2957
1814
os.dup2(null, sys.stderr.fileno())
2960
1817
2961
1818
2962
1819
def main():
2963
1820
2964
1821
##################################################################
2965
1822
# Parsing of options, both command line and config file
2966
1823
2967
1824
parser = argparse.ArgumentParser()
2968
1825
parser.add_argument("-v", "--version", action="version",
2969
version="%(prog)s {}".format(version),
1826
version = "%%(prog)s %s" % version,
2970
1827
help="show version number and exit")
2971
1828
parser.add_argument("-i", "--interface", metavar="IF",
2972
1829
help="Bind to interface IF")
2978
1835
help="Run self-test")
2979
1836
parser.add_argument("--debug", action="store_true",
2980
1837
help="Debug mode; run in foreground and log"
2981
" to terminal", default=None)
1838
" to terminal")
2982
1839
parser.add_argument("--debuglevel", metavar="LEVEL",
2983
1840
help="Debug level for stdout output")
2984
1841
parser.add_argument("--priority", help="GnuTLS"
2991
1848
" files")
2992
1849
parser.add_argument("--no-dbus", action="store_false",
2993
1850
dest="use_dbus", help="Do not provide D-Bus"
2994
" system bus interface", default=None)
1851
" system bus interface")
2995
1852
parser.add_argument("--no-ipv6", action="store_false",
2996
dest="use_ipv6", help="Do not use IPv6",
2997
default=None)
2998
parser.add_argument("--no-restore", action="store_false",
2999
dest="restore", help="Do not restore stored"
3000
" state", default=None)
3001
parser.add_argument("--socket", type=int,
3002
help="Specify a file descriptor to a network"
3003
" socket to use instead of creating one")
3004
parser.add_argument("--statedir", metavar="DIR",
3005
help="Directory to save/restore state in")
3006
parser.add_argument("--foreground", action="store_true",
3007
help="Run in foreground", default=None)
3008
parser.add_argument("--no-zeroconf", action="store_false",
3009
dest="zeroconf", help="Do not use Zeroconf",
3010
default=None)
3011
1853
dest="use_ipv6", help="Do not use IPv6")
3012
1854
options = parser.parse_args()
3013
1855
1856
if options.check:
1857
import doctest
1858
doctest.testmod()
1859
sys.exit()
1860
3014
1861
# Default values for config file for server-global settings
3015
if gnutls.has_rawpk:
3016
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3017
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3018
else:
3019
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3020
":+SIGN-DSA-SHA256")
3021
server_defaults = {"interface": "",
3022
"address": "",
3023
"port": "",
3024
"debug": "False",
3025
"priority": priority,
3026
"servicename": "Mandos",
3027
"use_dbus": "True",
3028
"use_ipv6": "True",
3029
"debuglevel": "",
3030
"restore": "True",
3031
"socket": "",
3032
"statedir": "/var/lib/mandos",
3033
"foreground": "False",
3034
"zeroconf": "True",
3035
}
3036
del priority
3037
1862
server_defaults = { "interface": "",
1863
"address": "",
1864
"port": "",
1865
"debug": "False",
1866
"priority":
1867
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1868
"servicename": "Mandos",
1869
"use_dbus": "True",
1870
"use_ipv6": "True",
1871
"debuglevel": "",
1872
}
1873
3038
1874
# Parse config file for server-global settings
3039
server_config = configparser.ConfigParser(server_defaults)
1875
server_config = configparser.SafeConfigParser(server_defaults)
3040
1876
del server_defaults
3041
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3042
# Convert the ConfigParser object to a dict
1877
server_config.read(os.path.join(options.configdir,
1878
"mandos.conf"))
1879
# Convert the SafeConfigParser object to a dict
3043
1880
server_settings = server_config.defaults()
3044
1881
# Use the appropriate methods on the non-string config options
3045
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3046
"foreground", "zeroconf"):
1882
for option in ("debug", "use_dbus", "use_ipv6"):
3047
1883
server_settings[option] = server_config.getboolean("DEFAULT",
3048
1884
option)
3049
1885
if server_settings["port"]:
3050
1886
server_settings["port"] = server_config.getint("DEFAULT",
3051
1887
"port")
3052
if server_settings["socket"]:
3053
server_settings["socket"] = server_config.getint("DEFAULT",
3054
"socket")
3055
# Later, stdin will, and stdout and stderr might, be dup'ed
3056
# over with an opened os.devnull. But we don't want this to
3057
# happen with a supplied network socket.
3058
if 0 <= server_settings["socket"] <= 2:
3059
server_settings["socket"] = os.dup(server_settings
3060
["socket"])
3061
1888
del server_config
3062
1889
3063
1890
# Override the settings from the config file with command line
3064
1891
# options, if set.
3065
1892
for option in ("interface", "address", "port", "debug",
3066
"priority", "servicename", "configdir", "use_dbus",
3067
"use_ipv6", "debuglevel", "restore", "statedir",
3068
"socket", "foreground", "zeroconf"):
1893
"priority", "servicename", "configdir",
1894
"use_dbus", "use_ipv6", "debuglevel"):
3069
1895
value = getattr(options, option)
3070
1896
if value is not None:
3071
1897
server_settings[option] = value
3072
1898
del options
3073
1899
# Force all strings to be unicode
3074
1900
for option in server_settings.keys():
3075
if isinstance(server_settings[option], bytes):
3076
server_settings[option] = (server_settings[option]
3077
.decode("utf-8"))
3078
# Force all boolean options to be boolean
3079
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3080
"foreground", "zeroconf"):
3081
server_settings[option] = bool(server_settings[option])
3082
# Debug implies foreground
3083
if server_settings["debug"]:
3084
server_settings["foreground"] = True
1901
if type(server_settings[option]) is str:
1902
server_settings[option] = unicode(server_settings[option])
3085
1903
# Now we have our good server settings in "server_settings"
3086
1904
3087
1905
##################################################################
3088
3089
if (not server_settings["zeroconf"]
3090
and not (server_settings["port"]
3091
or server_settings["socket"] != "")):
3092
parser.error("Needs port or socket to work without Zeroconf")
3093
1906
3094
1907
# For convenience
3095
1908
debug = server_settings["debug"]
3096
1909
debuglevel = server_settings["debuglevel"]
3097
1910
use_dbus = server_settings["use_dbus"]
3098
1911
use_ipv6 = server_settings["use_ipv6"]
3099
stored_state_path = os.path.join(server_settings["statedir"],
3100
stored_state_file)
3101
foreground = server_settings["foreground"]
3102
zeroconf = server_settings["zeroconf"]
3103
3104
if debug:
3105
initlogger(debug, logging.DEBUG)
3106
else:
3107
if not debuglevel:
3108
initlogger(debug)
3109
else:
3110
level = getattr(logging, debuglevel.upper())
3111
initlogger(debug, level)
3112
1912
3113
1913
if server_settings["servicename"] != "Mandos":
3114
syslogger.setFormatter(
3115
logging.Formatter('Mandos ({}) [%(process)d]:'
3116
' %(levelname)s: %(message)s'.format(
3117
server_settings["servicename"])))
3118
1914
syslogger.setFormatter(logging.Formatter
1915
('Mandos (%s) [%%(process)d]:'
1916
' %%(levelname)s: %%(message)s'
1917
% server_settings["servicename"]))
1918
3119
1919
# Parse config file with clients
3120
client_config = configparser.ConfigParser(Client.client_defaults)
1920
client_defaults = { "timeout": "5m",
1921
"extended_timeout": "15m",
1922
"interval": "2m",
1923
"checker": "fping -q -- %%(host)s",
1924
"host": "",
1925
"approval_delay": "0s",
1926
"approval_duration": "1s",
1927
}
1928
client_config = configparser.SafeConfigParser(client_defaults)
3121
1929
client_config.read(os.path.join(server_settings["configdir"],
3122
1930
"clients.conf"))
3123
1931
3124
1932
global mandos_dbus_service
3125
1933
mandos_dbus_service = None
3126
3127
socketfd = None
3128
if server_settings["socket"] != "":
3129
socketfd = server_settings["socket"]
3130
tcp_server = MandosServer(
3131
(server_settings["address"], server_settings["port"]),
3132
ClientHandler,
3133
interface=(server_settings["interface"] or None),
3134
use_ipv6=use_ipv6,
3135
gnutls_priority=server_settings["priority"],
3136
use_dbus=use_dbus,
3137
socketfd=socketfd)
3138
if not foreground:
3139
pidfilename = "/run/mandos.pid"
3140
if not os.path.isdir("/run/."):
3141
pidfilename = "/var/run/mandos.pid"
3142
pidfile = None
3143
try:
3144
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3145
except IOError as e:
3146
logger.error("Could not open file %r", pidfilename,
3147
exc_info=e)
3148
3149
for name, group in (("_mandos", "_mandos"),
3150
("mandos", "mandos"),
3151
("nobody", "nogroup")):
3152
try:
3153
uid = pwd.getpwnam(name).pw_uid
3154
gid = pwd.getpwnam(group).pw_gid
3155
break
1934
1935
tcp_server = MandosServer((server_settings["address"],
1936
server_settings["port"]),
1937
ClientHandler,
1938
interface=(server_settings["interface"]
1939
or None),
1940
use_ipv6=use_ipv6,
1941
gnutls_priority=
1942
server_settings["priority"],
1943
use_dbus=use_dbus)
1944
if not debug:
1945
pidfilename = "/var/run/mandos.pid"
1946
try:
1947
pidfile = open(pidfilename, "w")
1948
except IOError:
1949
logger.error("Could not open file %r", pidfilename)
1950
1951
try:
1952
uid = pwd.getpwnam("_mandos").pw_uid
1953
gid = pwd.getpwnam("_mandos").pw_gid
1954
except KeyError:
1955
try:
1956
uid = pwd.getpwnam("mandos").pw_uid
1957
gid = pwd.getpwnam("mandos").pw_gid
3156
1958
except KeyError:
3157
continue
3158
else:
3159
uid = 65534
3160
gid = 65534
1959
try:
1960
uid = pwd.getpwnam("nobody").pw_uid
1961
gid = pwd.getpwnam("nobody").pw_gid
1962
except KeyError:
1963
uid = 65534
1964
gid = 65534
3161
1965
try:
3162
1966
os.setgid(gid)
3163
1967
os.setuid(uid)
3164
if debug:
3165
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3166
gid))
3167
1968
except OSError as error:
3168
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3169
.format(uid, gid, os.strerror(error.errno)))
3170
if error.errno != errno.EPERM:
3171
raise
3172
1969
if error[0] != errno.EPERM:
1970
raise error
1971
1972
if not debug and not debuglevel:
1973
syslogger.setLevel(logging.WARNING)
1974
console.setLevel(logging.WARNING)
1975
if debuglevel:
1976
level = getattr(logging, debuglevel.upper())
1977
syslogger.setLevel(level)
1978
console.setLevel(level)
1979
3173
1980
if debug:
3174
1981
# Enable all possible GnuTLS debugging
3175
1982
3176
1983
# "Use a log level over 10 to enable all debugging options."
3177
1984
# - GnuTLS manual
3178
gnutls.global_set_log_level(11)
3179
3180
@gnutls.log_func
1985
gnutls.library.functions.gnutls_global_set_log_level(11)
1986
1987
@gnutls.library.types.gnutls_log_func
3181
1988
def debug_gnutls(level, string):
3182
1989
logger.debug("GnuTLS: %s", string[:-1])
3183
3184
gnutls.global_set_log_function(debug_gnutls)
3185
1990
1991
(gnutls.library.functions
1992
.gnutls_global_set_log_function(debug_gnutls))
1993
3186
1994
# Redirect stdin so all checkers get /dev/null
3187
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1995
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3188
1996
os.dup2(null, sys.stdin.fileno())
3189
1997
if null > 2:
3190
1998
os.close(null)
3191
1999
else:
2000
# No console logging
2001
logger.removeHandler(console)
2002
3192
2003
# Need to fork before connecting to D-Bus
3193
if not foreground:
2004
if not debug:
3194
2005
# Close all input and output, do double fork, etc.
3195
2006
daemon()
3196
3197
if gi.version_info < (3, 10, 2):
3198
# multiprocessing will use threads, so before we use GLib we
3199
# need to inform GLib that threads will be used.
3200
GLib.threads_init()
3201
2007
3202
2008
global main_loop
3203
2009
# From the Avahi example code
3204
DBusGMainLoop(set_as_default=True)
3205
main_loop = GLib.MainLoop()
2010
DBusGMainLoop(set_as_default=True )
2011
main_loop = gobject.MainLoop()
3206
2012
bus = dbus.SystemBus()
3207
2013
# End of Avahi example code
3208
2014
if use_dbus:
3209
2015
try:
3210
2016
bus_name = dbus.service.BusName("se.recompile.Mandos",
3211
bus,
3212
do_not_queue=True)
3213
old_bus_name = dbus.service.BusName(
3214
"se.bsnet.fukt.Mandos", bus,
3215
do_not_queue=True)
3216
except dbus.exceptions.DBusException as e:
3217
logger.error("Disabling D-Bus:", exc_info=e)
2017
bus, do_not_queue=True)
2018
old_bus_name = (dbus.service.BusName
2019
("se.bsnet.fukt.Mandos", bus,
2020
do_not_queue=True))
2021
except dbus.exceptions.NameExistsException as e:
2022
logger.error(unicode(e) + ", disabling D-Bus")
3218
2023
use_dbus = False
3219
2024
server_settings["use_dbus"] = False
3220
2025
tcp_server.use_dbus = False
3221
if zeroconf:
3222
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3223
service = AvahiServiceToSyslog(
3224
name=server_settings["servicename"],
3225
servicetype="_mandos._tcp",
3226
protocol=protocol,
3227
bus=bus)
3228
if server_settings["interface"]:
3229
service.interface = if_nametoindex(
3230
server_settings["interface"].encode("utf-8"))
3231
2026
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2027
service = AvahiService(name = server_settings["servicename"],
2028
servicetype = "_mandos._tcp",
2029
protocol = protocol, bus = bus)
2030
if server_settings["interface"]:
2031
service.interface = (if_nametoindex
2032
(str(server_settings["interface"])))
2033
3232
2034
global multiprocessing_manager
3233
2035
multiprocessing_manager = multiprocessing.Manager()
3234
2036
3235
2037
client_class = Client
3236
2038
if use_dbus:
3237
client_class = functools.partial(ClientDBus, bus=bus)
3238
3239
client_settings = Client.config_parser(client_config)
3240
old_client_settings = {}
3241
clients_data = {}
3242
3243
# This is used to redirect stdout and stderr for checker processes
3244
global wnull
3245
wnull = open(os.devnull, "w") # A writable /dev/null
3246
# Only used if server is running in foreground but not in debug
3247
# mode
3248
if debug or not foreground:
3249
wnull.close()
3250
3251
# Get client data and settings from last running state.
3252
if server_settings["restore"]:
3253
try:
3254
with open(stored_state_path, "rb") as stored_state:
3255
if sys.version_info.major == 2:
3256
clients_data, old_client_settings = pickle.load(
3257
stored_state)
3258
else:
3259
bytes_clients_data, bytes_old_client_settings = (
3260
pickle.load(stored_state, encoding="bytes"))
3261
# Fix bytes to strings
3262
# clients_data
3263
# .keys()
3264
clients_data = {(key.decode("utf-8")
3265
if isinstance(key, bytes)
3266
else key): value
3267
for key, value in
3268
bytes_clients_data.items()}
3269
del bytes_clients_data
3270
for key in clients_data:
3271
value = {(k.decode("utf-8")
3272
if isinstance(k, bytes) else k): v
3273
for k, v in
3274
clients_data[key].items()}
3275
clients_data[key] = value
3276
# .client_structure
3277
value["client_structure"] = [
3278
(s.decode("utf-8")
3279
if isinstance(s, bytes)
3280
else s) for s in
3281
value["client_structure"]]
3282
# .name, .host, and .checker_command
3283
for k in ("name", "host", "checker_command"):
3284
if isinstance(value[k], bytes):
3285
value[k] = value[k].decode("utf-8")
3286
if "key_id" not in value:
3287
value["key_id"] = ""
3288
elif "fingerprint" not in value:
3289
value["fingerprint"] = ""
3290
# old_client_settings
3291
# .keys()
3292
old_client_settings = {
3293
(key.decode("utf-8")
3294
if isinstance(key, bytes)
3295
else key): value
3296
for key, value in
3297
bytes_old_client_settings.items()}
3298
del bytes_old_client_settings
3299
# .host and .checker_command
3300
for value in old_client_settings.values():
3301
for attribute in ("host", "checker_command"):
3302
if isinstance(value[attribute], bytes):
3303
value[attribute] = (value[attribute]
3304
.decode("utf-8"))
3305
os.remove(stored_state_path)
3306
except IOError as e:
3307
if e.errno == errno.ENOENT:
3308
logger.warning("Could not load persistent state:"
3309
" {}".format(os.strerror(e.errno)))
3310
else:
3311
logger.critical("Could not load persistent state:",
3312
exc_info=e)
3313
raise
3314
except EOFError as e:
3315
logger.warning("Could not load persistent state: "
3316
"EOFError:",
3317
exc_info=e)
3318
3319
with PGPEngine() as pgp:
3320
for client_name, client in clients_data.items():
3321
# Skip removed clients
3322
if client_name not in client_settings:
3323
continue
3324
3325
# Decide which value to use after restoring saved state.
3326
# We have three different values: Old config file,
3327
# new config file, and saved state.
3328
# New config value takes precedence if it differs from old
3329
# config value, otherwise use saved state.
3330
for name, value in client_settings[client_name].items():
3331
try:
3332
# For each value in new config, check if it
3333
# differs from the old config value (Except for
3334
# the "secret" attribute)
3335
if (name != "secret"
3336
and (value !=
3337
old_client_settings[client_name][name])):
3338
client[name] = value
3339
except KeyError:
3340
pass
3341
3342
# Clients who has passed its expire date can still be
3343
# enabled if its last checker was successful. A Client
3344
# whose checker succeeded before we stored its state is
3345
# assumed to have successfully run all checkers during
3346
# downtime.
3347
if client["enabled"]:
3348
if datetime.datetime.utcnow() >= client["expires"]:
3349
if not client["last_checked_ok"]:
3350
logger.warning(
3351
"disabling client {} - Client never "
3352
"performed a successful checker".format(
3353
client_name))
3354
client["enabled"] = False
3355
elif client["last_checker_status"] != 0:
3356
logger.warning(
3357
"disabling client {} - Client last"
3358
" checker failed with error code"
3359
" {}".format(
3360
client_name,
3361
client["last_checker_status"]))
3362
client["enabled"] = False
3363
else:
3364
client["expires"] = (
3365
datetime.datetime.utcnow()
3366
+ client["timeout"])
3367
logger.debug("Last checker succeeded,"
3368
" keeping {} enabled".format(
3369
client_name))
2039
client_class = functools.partial(ClientDBusTransitional,
2040
bus = bus)
2041
def client_config_items(config, section):
2042
special_settings = {
2043
"approved_by_default":
2044
lambda: config.getboolean(section,
2045
"approved_by_default"),
2046
}
2047
for name, value in config.items(section):
3370
2048
try:
3371
client["secret"] = pgp.decrypt(
3372
client["encrypted_secret"],
3373
client_settings[client_name]["secret"])
3374
except PGPError:
3375
# If decryption fails, we use secret from new settings
3376
logger.debug("Failed to decrypt {} old secret".format(
3377
client_name))
3378
client["secret"] = (client_settings[client_name]
3379
["secret"])
3380
3381
# Add/remove clients based on new changes made to config
3382
for client_name in (set(old_client_settings)
3383
- set(client_settings)):
3384
del clients_data[client_name]
3385
for client_name in (set(client_settings)
3386
- set(old_client_settings)):
3387
clients_data[client_name] = client_settings[client_name]
3388
3389
# Create all client objects
3390
for client_name, client in clients_data.items():
3391
tcp_server.clients[client_name] = client_class(
3392
name=client_name,
3393
settings=client,
3394
server_settings=server_settings)
3395
2049
yield (name, special_settings[name]())
2050
except KeyError:
2051
yield (name, value)
2052
2053
tcp_server.clients.update(set(
2054
client_class(name = section,
2055
config= dict(client_config_items(
2056
client_config, section)))
2057
for section in client_config.sections()))
3396
2058
if not tcp_server.clients:
3397
2059
logger.warning("No clients defined")
3398
3399
if not foreground:
3400
if pidfile is not None:
3401
pid = os.getpid()
3402
try:
3403
with pidfile:
3404
print(pid, file=pidfile)
3405
except IOError:
3406
logger.error("Could not write to file %r with PID %d",
3407
pidfilename, pid)
3408
del pidfile
2060
2061
if not debug:
2062
try:
2063
with pidfile:
2064
pid = os.getpid()
2065
pidfile.write(str(pid) + "\n".encode("utf-8"))
2066
del pidfile
2067
except IOError:
2068
logger.error("Could not write to file %r with PID %d",
2069
pidfilename, pid)
2070
except NameError:
2071
# "pidfile" was never created
2072
pass
3409
2073
del pidfilename
3410
3411
for termsig in (signal.SIGHUP, signal.SIGTERM):
3412
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3413
lambda: main_loop.quit() and False)
3414
2074
2075
signal.signal(signal.SIGINT, signal.SIG_IGN)
2076
2077
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2078
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2079
3415
2080
if use_dbus:
3416
3417
@alternate_dbus_interfaces(
3418
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3419
class MandosDBusService(DBusObjectWithObjectManager):
2081
class MandosDBusService(dbus.service.Object):
3420
2082
"""A D-Bus proxy object"""
3421
3422
2083
def __init__(self):
3423
2084
dbus.service.Object.__init__(self, bus, "/")
3424
3425
2085
_interface = "se.recompile.Mandos"
3426
2086
3427
2087
@dbus.service.signal(_interface, signature="o")
3428
2088
def ClientAdded(self, objpath):
3429
2089
"D-Bus signal"
3430
2090
pass
3431
2091
3432
2092
@dbus.service.signal(_interface, signature="ss")
3433
def ClientNotFound(self, key_id, address):
2093
def ClientNotFound(self, fingerprint, address):
3434
2094
"D-Bus signal"
3435
2095
pass
3436
3437
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3438
"true"})
2096
3439
2097
@dbus.service.signal(_interface, signature="os")
3440
2098
def ClientRemoved(self, objpath, name):
3441
2099
"D-Bus signal"
3442
2100
pass
3443
3444
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3445
"true"})
2101
3446
2102
@dbus.service.method(_interface, out_signature="ao")
3447
2103
def GetAllClients(self):
3448
2104
"D-Bus method"
3449
return dbus.Array(c.dbus_object_path for c in
3450
tcp_server.clients.values())
3451
3452
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3453
"true"})
2105
return dbus.Array(c.dbus_object_path
2106
for c in tcp_server.clients)
2107
3454
2108
@dbus.service.method(_interface,
3455
2109
out_signature="a{oa{sv}}")
3456
2110
def GetAllClientsWithProperties(self):
3457
2111
"D-Bus method"
3458
2112
return dbus.Dictionary(
3459
{c.dbus_object_path: c.GetAll(
3460
"se.recompile.Mandos.Client")
3461
for c in tcp_server.clients.values()},
2113
((c.dbus_object_path, c.GetAll(""))
2114
for c in tcp_server.clients),
3462
2115
signature="oa{sv}")
3463
2116
3464
2117
@dbus.service.method(_interface, in_signature="o")
3465
2118
def RemoveClient(self, object_path):
3466
2119
"D-Bus method"
3467
for c in tcp_server.clients.values():
2120
for c in tcp_server.clients:
3468
2121
if c.dbus_object_path == object_path:
3469
del tcp_server.clients[c.name]
2122
tcp_server.clients.remove(c)
3470
2123
c.remove_from_connection()
3471
# Don't signal the disabling
2124
# Don't signal anything except ClientRemoved
3472
2125
c.disable(quiet=True)
3473
# Emit D-Bus signal for removal
3474
self.client_removed_signal(c)
2126
# Emit D-Bus signal
2127
self.ClientRemoved(object_path, c.name)
3475
2128
return
3476
2129
raise KeyError(object_path)
3477
2130
3478
2131
del _interface
3479
3480
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3481
out_signature="a{oa{sa{sv}}}")
3482
def GetManagedObjects(self):
3483
"""D-Bus method"""
3484
return dbus.Dictionary(
3485
{client.dbus_object_path:
3486
dbus.Dictionary(
3487
{interface: client.GetAll(interface)
3488
for interface in
3489
client._get_all_interface_names()})
3490
for client in tcp_server.clients.values()})
3491
3492
def client_added_signal(self, client):
3493
"""Send the new standard signal and the old signal"""
3494
if use_dbus:
3495
# New standard signal
3496
self.InterfacesAdded(
3497
client.dbus_object_path,
3498
dbus.Dictionary(
3499
{interface: client.GetAll(interface)
3500
for interface in
3501
client._get_all_interface_names()}))
3502
# Old signal
3503
self.ClientAdded(client.dbus_object_path)
3504
3505
def client_removed_signal(self, client):
3506
"""Send the new standard signal and the old signal"""
3507
if use_dbus:
3508
# New standard signal
3509
self.InterfacesRemoved(
3510
client.dbus_object_path,
3511
client._get_all_interface_names())
3512
# Old signal
3513
self.ClientRemoved(client.dbus_object_path,
3514
client.name)
3515
3516
mandos_dbus_service = MandosDBusService()
3517
3518
# Save modules to variables to exempt the modules from being
3519
# unloaded before the function registered with atexit() is run.
3520
mp = multiprocessing
3521
wn = wnull
3522
2132
2133
class MandosDBusServiceTransitional(MandosDBusService):
2134
__metaclass__ = AlternateDBusNamesMetaclass
2135
mandos_dbus_service = MandosDBusServiceTransitional()
2136
3523
2137
def cleanup():
3524
2138
"Cleanup function; run on exit"
3525
if zeroconf:
3526
service.cleanup()
3527
3528
mp.active_children()
3529
wn.close()
3530
if not (tcp_server.clients or client_settings):
3531
return
3532
3533
# Store client before exiting. Secrets are encrypted with key
3534
# based on what config file has. If config file is
3535
# removed/edited, old secret will thus be unrecovable.
3536
clients = {}
3537
with PGPEngine() as pgp:
3538
for client in tcp_server.clients.values():
3539
key = client_settings[client.name]["secret"]
3540
client.encrypted_secret = pgp.encrypt(client.secret,
3541
key)
3542
client_dict = {}
3543
3544
# A list of attributes that can not be pickled
3545
# + secret.
3546
exclude = {"bus", "changedstate", "secret",
3547
"checker", "server_settings"}
3548
for name, typ in inspect.getmembers(dbus.service
3549
.Object):
3550
exclude.add(name)
3551
3552
client_dict["encrypted_secret"] = (client
3553
.encrypted_secret)
3554
for attr in client.client_structure:
3555
if attr not in exclude:
3556
client_dict[attr] = getattr(client, attr)
3557
3558
clients[client.name] = client_dict
3559
del client_settings[client.name]["secret"]
3560
3561
try:
3562
with tempfile.NamedTemporaryFile(
3563
mode='wb',
3564
suffix=".pickle",
3565
prefix='clients-',
3566
dir=os.path.dirname(stored_state_path),
3567
delete=False) as stored_state:
3568
pickle.dump((clients, client_settings), stored_state,
3569
protocol=2)
3570
tempname = stored_state.name
3571
os.rename(tempname, stored_state_path)
3572
except (IOError, OSError) as e:
3573
if not debug:
3574
try:
3575
os.remove(tempname)
3576
except NameError:
3577
pass
3578
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3579
logger.warning("Could not save persistent state: {}"
3580
.format(os.strerror(e.errno)))
3581
else:
3582
logger.warning("Could not save persistent state:",
3583
exc_info=e)
3584
raise
3585
3586
# Delete all clients, and settings from config
2139
service.cleanup()
2140
2141
multiprocessing.active_children()
3587
2142
while tcp_server.clients:
3588
name, client = tcp_server.clients.popitem()
2143
client = tcp_server.clients.pop()
3589
2144
if use_dbus:
3590
2145
client.remove_from_connection()
3591
# Don't signal the disabling
2146
client.disable_hook = None
2147
# Don't signal anything except ClientRemoved
3592
2148
client.disable(quiet=True)
3593
# Emit D-Bus signal for removal
3594
2149
if use_dbus:
3595
mandos_dbus_service.client_removed_signal(client)
3596
client_settings.clear()
3597
2150
# Emit D-Bus signal
2151
mandos_dbus_service.ClientRemoved(client
2152
.dbus_object_path,
2153
client.name)
2154
3598
2155
atexit.register(cleanup)
3599
3600
for client in tcp_server.clients.values():
2156
2157
for client in tcp_server.clients:
3601
2158
if use_dbus:
3602
# Emit D-Bus signal for adding
3603
mandos_dbus_service.client_added_signal(client)
3604
# Need to initiate checking of clients
3605
if client.enabled:
3606
client.init_checker()
3607
2159
# Emit D-Bus signal
2160
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2161
client.enable()
2162
3608
2163
tcp_server.enable()
3609
2164
tcp_server.server_activate()
3610
2165
3611
2166
# Find out what port we got
3612
if zeroconf:
3613
service.port = tcp_server.socket.getsockname()[1]
2167
service.port = tcp_server.socket.getsockname()[1]
3614
2168
if use_ipv6:
3615
2169
logger.info("Now listening on address %r, port %d,"
3616
" flowinfo %d, scope_id %d",
3617
*tcp_server.socket.getsockname())
2170
" flowinfo %d, scope_id %d"
2171
% tcp_server.socket.getsockname())
3618
2172
else: # IPv4
3619
logger.info("Now listening on address %r, port %d",
3620
*tcp_server.socket.getsockname())
3621
3622
# service.interface = tcp_server.socket.getsockname()[3]
3623
2173
logger.info("Now listening on address %r, port %d"
2174
% tcp_server.socket.getsockname())
2175
2176
#service.interface = tcp_server.socket.getsockname()[3]
2177
3624
2178
try:
3625
if zeroconf:
3626
# From the Avahi example code
3627
try:
3628
service.activate()
3629
except dbus.exceptions.DBusException as error:
3630
logger.critical("D-Bus Exception", exc_info=error)
3631
cleanup()
3632
sys.exit(1)
3633
# End of Avahi example code
3634
3635
GLib.io_add_watch(
3636
GLib.IOChannel.unix_new(tcp_server.fileno()),
3637
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3638
lambda *args, **kwargs: (tcp_server.handle_request
3639
(*args[2:], **kwargs) or True))
3640
2179
# From the Avahi example code
2180
try:
2181
service.activate()
2182
except dbus.exceptions.DBusException as error:
2183
logger.critical("DBusException: %s", error)
2184
cleanup()
2185
sys.exit(1)
2186
# End of Avahi example code
2187
2188
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2189
lambda *args, **kwargs:
2190
(tcp_server.handle_request
2191
(*args[2:], **kwargs) or True))
2192
3641
2193
logger.debug("Starting main loop")
3642
2194
main_loop.run()
3643
2195
except AvahiError as error:
3644
logger.critical("Avahi Error", exc_info=error)
2196
logger.critical("AvahiError: %s", error)
3645
2197
cleanup()
3646
2198
sys.exit(1)
3647
2199
except KeyboardInterrupt:
3652
2204
# Must run before the D-Bus bus name gets deregistered
3653
2205
cleanup()
3654
2206
3655
3656
def should_only_run_tests():
3657
parser = argparse.ArgumentParser(add_help=False)
3658
parser.add_argument("--check", action='store_true')
3659
args, unknown_args = parser.parse_known_args()
3660
run_tests = args.check
3661
if run_tests:
3662
# Remove --check argument from sys.argv
3663
sys.argv[1:] = unknown_args
3664
return run_tests
3665
3666
# Add all tests from doctest strings
3667
def load_tests(loader, tests, none):
3668
import doctest
3669
tests.addTests(doctest.DocTestSuite())
3670
return tests
3671
2207
3672
2208
if __name__ == '__main__':
3673
try:
3674
if should_only_run_tests():
3675
# Call using ./mandos --check [--verbose]
3676
unittest.main()
3677
else:
3678
main()
3679
finally:
3680
logging.shutdown()
2209
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0