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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 © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
66
83
67
import dbus
84
68
import dbus.service
85
import gi
86
from gi.repository import GLib
69
import gobject
70
import avahi
87
71
from dbus.mainloop.glib import DBusGMainLoop
88
72
import ctypes
89
73
import ctypes.util
90
74
import xml.dom.minidom
91
75
import inspect
92
76
93
if sys.version_info.major == 2:
94
__metaclass__ = type
95
str = unicode
96
97
# Add collections.abc.Callable if it does not exist
98
try:
99
collections.abc.Callable
100
except AttributeError:
101
class abc:
102
Callable = collections.Callable
103
collections.abc = abc
104
del abc
105
106
# Show warnings by default
107
if not sys.warnoptions:
108
import warnings
109
warnings.simplefilter("default")
110
111
# Try to find the value of SO_BINDTODEVICE:
112
try:
113
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
114
# newer, and it is also the most natural place for it:
77
try:
115
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
116
79
except AttributeError:
117
80
try:
118
# This is where SO_BINDTODEVICE was up to and including Python
119
# 2.6, and also 3.2:
120
81
from IN import SO_BINDTODEVICE
121
82
except ImportError:
122
# In Python 2.7 it seems to have been removed entirely.
123
# Try running the C preprocessor:
124
try:
125
cc = subprocess.Popen(["cc", "--language=c", "-E",
126
"/dev/stdin"],
127
stdin=subprocess.PIPE,
128
stdout=subprocess.PIPE)
129
stdout = cc.communicate(
130
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
131
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
132
except (OSError, ValueError, IndexError):
133
# No value found
134
SO_BINDTODEVICE = None
135
136
if sys.version_info < (3, 2):
137
configparser.Configparser = configparser.SafeConfigParser
138
139
version = "1.8.9"
140
stored_state_file = "clients.pickle"
141
142
logger = logging.getLogger()
143
logging.captureWarnings(True) # Show warnings via the logging system
144
syslogger = None
145
146
try:
147
if_nametoindex = ctypes.cdll.LoadLibrary(
148
ctypes.util.find_library("c")).if_nametoindex
149
except (OSError, AttributeError):
150
151
def if_nametoindex(interface):
152
"Get an interface index the hard way, i.e. using fcntl()"
153
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
154
with contextlib.closing(socket.socket()) as s:
155
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
156
struct.pack(b"16s16x", interface))
157
interface_index = struct.unpack("I", ifreq[16:20])[0]
158
return interface_index
159
160
161
def copy_function(func):
162
"""Make a copy of a function"""
163
if sys.version_info.major == 2:
164
return types.FunctionType(func.func_code,
165
func.func_globals,
166
func.func_name,
167
func.func_defaults,
168
func.func_closure)
169
else:
170
return types.FunctionType(func.__code__,
171
func.__globals__,
172
func.__name__,
173
func.__defaults__,
174
func.__closure__)
175
176
177
def initlogger(debug, level=logging.WARNING):
178
"""init logger and add loglevel"""
179
180
global syslogger
181
syslogger = (logging.handlers.SysLogHandler(
182
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
183
address="/dev/log"))
184
syslogger.setFormatter(logging.Formatter
185
('Mandos [%(process)d]: %(levelname)s:'
186
' %(message)s'))
187
logger.addHandler(syslogger)
188
189
if debug:
190
console = logging.StreamHandler()
191
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
192
' [%(process)d]:'
193
' %(levelname)s:'
194
' %(message)s'))
195
logger.addHandler(console)
196
logger.setLevel(level)
197
198
199
class PGPError(Exception):
200
"""Exception if encryption/decryption fails"""
201
pass
202
203
204
class PGPEngine:
205
"""A simple class for OpenPGP symmetric encryption & decryption"""
206
207
def __init__(self):
208
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
209
self.gpg = "gpg"
210
try:
211
output = subprocess.check_output(["gpgconf"])
212
for line in output.splitlines():
213
name, text, path = line.split(b":")
214
if name == b"gpg":
215
self.gpg = path
216
break
217
except OSError as e:
218
if e.errno != errno.ENOENT:
219
raise
220
self.gnupgargs = ['--batch',
221
'--homedir', self.tempdir,
222
'--force-mdc',
223
'--quiet']
224
# Only GPG version 1 has the --no-use-agent option.
225
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
226
self.gnupgargs.append("--no-use-agent")
227
228
def __enter__(self):
229
return self
230
231
def __exit__(self, exc_type, exc_value, traceback):
232
self._cleanup()
233
return False
234
235
def __del__(self):
236
self._cleanup()
237
238
def _cleanup(self):
239
if self.tempdir is not None:
240
# Delete contents of tempdir
241
for root, dirs, files in os.walk(self.tempdir,
242
topdown=False):
243
for filename in files:
244
os.remove(os.path.join(root, filename))
245
for dirname in dirs:
246
os.rmdir(os.path.join(root, dirname))
247
# Remove tempdir
248
os.rmdir(self.tempdir)
249
self.tempdir = None
250
251
def password_encode(self, password):
252
# Passphrase can not be empty and can not contain newlines or
253
# NUL bytes. So we prefix it and hex encode it.
254
encoded = b"mandos" + binascii.hexlify(password)
255
if len(encoded) > 2048:
256
# GnuPG can't handle long passwords, so encode differently
257
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
258
.replace(b"\n", b"\\n")
259
.replace(b"\0", b"\\x00"))
260
return encoded
261
262
def encrypt(self, data, password):
263
passphrase = self.password_encode(password)
264
with tempfile.NamedTemporaryFile(
265
dir=self.tempdir) as passfile:
266
passfile.write(passphrase)
267
passfile.flush()
268
proc = subprocess.Popen([self.gpg, '--symmetric',
269
'--passphrase-file',
270
passfile.name]
271
+ self.gnupgargs,
272
stdin=subprocess.PIPE,
273
stdout=subprocess.PIPE,
274
stderr=subprocess.PIPE)
275
ciphertext, err = proc.communicate(input=data)
276
if proc.returncode != 0:
277
raise PGPError(err)
278
return ciphertext
279
280
def decrypt(self, data, password):
281
passphrase = self.password_encode(password)
282
with tempfile.NamedTemporaryFile(
283
dir=self.tempdir) as passfile:
284
passfile.write(passphrase)
285
passfile.flush()
286
proc = subprocess.Popen([self.gpg, '--decrypt',
287
'--passphrase-file',
288
passfile.name]
289
+ self.gnupgargs,
290
stdin=subprocess.PIPE,
291
stdout=subprocess.PIPE,
292
stderr=subprocess.PIPE)
293
decrypted_plaintext, err = proc.communicate(input=data)
294
if proc.returncode != 0:
295
raise PGPError(err)
296
return decrypted_plaintext
297
298
299
# Pretend that we have an Avahi module
300
class avahi:
301
"""This isn't so much a class as it is a module-like namespace."""
302
IF_UNSPEC = -1 # avahi-common/address.h
303
PROTO_UNSPEC = -1 # avahi-common/address.h
304
PROTO_INET = 0 # avahi-common/address.h
305
PROTO_INET6 = 1 # avahi-common/address.h
306
DBUS_NAME = "org.freedesktop.Avahi"
307
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
308
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
309
DBUS_PATH_SERVER = "/"
310
311
@staticmethod
312
def string_array_to_txt_array(t):
313
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
314
for s in t), signature="ay")
315
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
316
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
317
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
318
SERVER_INVALID = 0 # avahi-common/defs.h
319
SERVER_REGISTERING = 1 # avahi-common/defs.h
320
SERVER_RUNNING = 2 # avahi-common/defs.h
321
SERVER_COLLISION = 3 # avahi-common/defs.h
322
SERVER_FAILURE = 4 # avahi-common/defs.h
323
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)
324
103
325
104
class AvahiError(Exception):
326
105
def __init__(self, value, *args, **kwargs):
327
106
self.value = value
328
return super(AvahiError, self).__init__(value, *args,
329
**kwargs)
330
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
331
110
332
111
class AvahiServiceError(AvahiError):
333
112
pass
334
113
335
336
114
class AvahiGroupError(AvahiError):
337
115
pass
338
116
339
117
340
class AvahiService:
118
class AvahiService(object):
341
119
"""An Avahi (Zeroconf) service.
342
120
343
121
Attributes:
344
122
interface: integer; avahi.IF_UNSPEC or an interface index.
345
123
Used to optionally bind to the specified interface.
346
124
name: string; Example: 'Mandos'
347
125
type: string; Example: '_mandos._tcp'.
348
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
349
127
port: integer; what port to announce
350
128
TXT: list of strings; TXT record for the service
351
129
domain: string; Domain to publish on, default to .local if empty.
357
135
server: D-Bus Server
358
136
bus: dbus.SystemBus()
359
137
"""
360
361
def __init__(self,
362
interface=avahi.IF_UNSPEC,
363
name=None,
364
servicetype=None,
365
port=None,
366
TXT=None,
367
domain="",
368
host="",
369
max_renames=32768,
370
protocol=avahi.PROTO_UNSPEC,
371
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):
372
142
self.interface = interface
373
143
self.name = name
374
144
self.type = servicetype
383
153
self.server = None
384
154
self.bus = bus
385
155
self.entry_group_state_changed_match = None
386
387
def rename(self, remove=True):
156
def rename(self):
388
157
"""Derived from the Avahi example code"""
389
158
if self.rename_count >= self.max_renames:
390
159
logger.critical("No suitable Zeroconf service name found"
391
160
" after %i retries, exiting.",
392
161
self.rename_count)
393
162
raise AvahiServiceError("Too many renames")
394
self.name = str(
395
self.server.GetAlternativeServiceName(self.name))
396
self.rename_count += 1
163
self.name = unicode(self.server
164
.GetAlternativeServiceName(self.name))
397
165
logger.info("Changing Zeroconf service name to %r ...",
398
166
self.name)
399
if remove:
400
self.remove()
167
syslogger.setFormatter(logging.Formatter
168
('Mandos (%s) [%%(process)d]:'
169
' %%(levelname)s: %%(message)s'
170
% self.name))
171
self.remove()
401
172
try:
402
173
self.add()
403
174
except dbus.exceptions.DBusException as error:
404
if (error.get_dbus_name()
405
== "org.freedesktop.Avahi.CollisionError"):
406
logger.info("Local Zeroconf service name collision.")
407
return self.rename(remove=False)
408
else:
409
logger.critical("D-Bus Exception", exc_info=error)
410
self.cleanup()
411
os._exit(1)
412
175
logger.critical("DBusException: %s", error)
176
self.cleanup()
177
os._exit(1)
178
self.rename_count += 1
413
179
def remove(self):
414
180
"""Derived from the Avahi example code"""
415
181
if self.entry_group_state_changed_match is not None:
417
183
self.entry_group_state_changed_match = None
418
184
if self.group is not None:
419
185
self.group.Reset()
420
421
186
def add(self):
422
187
"""Derived from the Avahi example code"""
423
188
self.remove()
428
193
avahi.DBUS_INTERFACE_ENTRY_GROUP)
429
194
self.entry_group_state_changed_match = (
430
195
self.group.connect_to_signal(
431
'StateChanged', self.entry_group_state_changed))
196
'StateChanged', self .entry_group_state_changed))
432
197
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
433
198
self.name, self.type)
434
199
self.group.AddService(
440
205
dbus.UInt16(self.port),
441
206
avahi.string_array_to_txt_array(self.TXT))
442
207
self.group.Commit()
443
444
208
def entry_group_state_changed(self, state, error):
445
209
"""Derived from the Avahi example code"""
446
210
logger.debug("Avahi entry group state change: %i", state)
447
211
448
212
if state == avahi.ENTRY_GROUP_ESTABLISHED:
449
213
logger.debug("Zeroconf service established.")
450
214
elif state == avahi.ENTRY_GROUP_COLLISION:
452
216
self.rename()
453
217
elif state == avahi.ENTRY_GROUP_FAILURE:
454
218
logger.critical("Avahi: Error in group state changed %s",
455
str(error))
456
raise AvahiGroupError("State changed: {!s}".format(error))
457
219
unicode(error))
220
raise AvahiGroupError("State changed: %s"
221
% unicode(error))
458
222
def cleanup(self):
459
223
"""Derived from the Avahi example code"""
460
224
if self.group is not None:
461
225
try:
462
226
self.group.Free()
463
227
except (dbus.exceptions.UnknownMethodException,
464
dbus.exceptions.DBusException):
228
dbus.exceptions.DBusException) as e:
465
229
pass
466
230
self.group = None
467
231
self.remove()
468
469
232
def server_state_changed(self, state, error=None):
470
233
"""Derived from the Avahi example code"""
471
234
logger.debug("Avahi server state change: %i", state)
472
bad_states = {
473
avahi.SERVER_INVALID: "Zeroconf server invalid",
474
avahi.SERVER_REGISTERING: None,
475
avahi.SERVER_COLLISION: "Zeroconf server name collision",
476
avahi.SERVER_FAILURE: "Zeroconf server failure",
477
}
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" }
478
242
if state in bad_states:
479
243
if bad_states[state] is not None:
480
244
if error is None:
483
247
logger.error(bad_states[state] + ": %r", error)
484
248
self.cleanup()
485
249
elif state == avahi.SERVER_RUNNING:
486
try:
487
self.add()
488
except dbus.exceptions.DBusException as error:
489
if (error.get_dbus_name()
490
== "org.freedesktop.Avahi.CollisionError"):
491
logger.info("Local Zeroconf service name"
492
" collision.")
493
return self.rename(remove=False)
494
else:
495
logger.critical("D-Bus Exception", exc_info=error)
496
self.cleanup()
497
os._exit(1)
250
self.add()
498
251
else:
499
252
if error is None:
500
253
logger.debug("Unknown state: %r", state)
501
254
else:
502
255
logger.debug("Unknown state: %r: %r", state, error)
503
504
256
def activate(self):
505
257
"""Derived from the Avahi example code"""
506
258
if self.server is None:
510
262
follow_name_owner_changes=True),
511
263
avahi.DBUS_INTERFACE_SERVER)
512
264
self.server.connect_to_signal("StateChanged",
513
self.server_state_changed)
265
self.server_state_changed)
514
266
self.server_state_changed(self.server.GetState())
515
267
516
268
517
class AvahiServiceToSyslog(AvahiService):
518
def rename(self, *args, **kwargs):
519
"""Add the new name to the syslog messages"""
520
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
521
syslogger.setFormatter(logging.Formatter(
522
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
523
.format(self.name)))
524
return ret
525
526
527
# Pretend that we have a GnuTLS module
528
class gnutls:
529
"""This isn't so much a class as it is a module-like namespace."""
530
531
library = ctypes.util.find_library("gnutls")
532
if library is None:
533
library = ctypes.util.find_library("gnutls-deb0")
534
_library = ctypes.cdll.LoadLibrary(library)
535
del library
536
537
# Unless otherwise indicated, the constants and types below are
538
# all from the gnutls/gnutls.h C header file.
539
540
# Constants
541
E_SUCCESS = 0
542
E_INTERRUPTED = -52
543
E_AGAIN = -28
544
CRT_OPENPGP = 2
545
CRT_RAWPK = 3
546
CLIENT = 2
547
SHUT_RDWR = 0
548
CRD_CERTIFICATE = 1
549
E_NO_CERTIFICATE_FOUND = -49
550
X509_FMT_DER = 0
551
NO_TICKETS = 1<<10
552
ENABLE_RAWPK = 1<<18
553
CTYPE_PEERS = 3
554
KEYID_USE_SHA256 = 1 # gnutls/x509.h
555
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
556
557
# Types
558
class session_int(ctypes.Structure):
559
_fields_ = []
560
session_t = ctypes.POINTER(session_int)
561
562
class certificate_credentials_st(ctypes.Structure):
563
_fields_ = []
564
certificate_credentials_t = ctypes.POINTER(
565
certificate_credentials_st)
566
certificate_type_t = ctypes.c_int
567
568
class datum_t(ctypes.Structure):
569
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
570
('size', ctypes.c_uint)]
571
572
class openpgp_crt_int(ctypes.Structure):
573
_fields_ = []
574
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
575
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
576
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
577
credentials_type_t = ctypes.c_int
578
transport_ptr_t = ctypes.c_void_p
579
close_request_t = ctypes.c_int
580
581
# Exceptions
582
class Error(Exception):
583
def __init__(self, message=None, code=None, args=()):
584
# Default usage is by a message string, but if a return
585
# code is passed, convert it to a string with
586
# gnutls.strerror()
587
self.code = code
588
if message is None and code is not None:
589
message = gnutls.strerror(code)
590
return super(gnutls.Error, self).__init__(
591
message, *args)
592
593
class CertificateSecurityError(Error):
594
pass
595
596
# Classes
597
class Credentials:
598
def __init__(self):
599
self._c_object = gnutls.certificate_credentials_t()
600
gnutls.certificate_allocate_credentials(
601
ctypes.byref(self._c_object))
602
self.type = gnutls.CRD_CERTIFICATE
603
604
def __del__(self):
605
gnutls.certificate_free_credentials(self._c_object)
606
607
class ClientSession:
608
def __init__(self, socket, credentials=None):
609
self._c_object = gnutls.session_t()
610
gnutls_flags = gnutls.CLIENT
611
if gnutls.check_version(b"3.5.6"):
612
gnutls_flags |= gnutls.NO_TICKETS
613
if gnutls.has_rawpk:
614
gnutls_flags |= gnutls.ENABLE_RAWPK
615
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
616
del gnutls_flags
617
gnutls.set_default_priority(self._c_object)
618
gnutls.transport_set_ptr(self._c_object, socket.fileno())
619
gnutls.handshake_set_private_extensions(self._c_object,
620
True)
621
self.socket = socket
622
if credentials is None:
623
credentials = gnutls.Credentials()
624
gnutls.credentials_set(self._c_object, credentials.type,
625
ctypes.cast(credentials._c_object,
626
ctypes.c_void_p))
627
self.credentials = credentials
628
629
def __del__(self):
630
gnutls.deinit(self._c_object)
631
632
def handshake(self):
633
return gnutls.handshake(self._c_object)
634
635
def send(self, data):
636
data = bytes(data)
637
data_len = len(data)
638
while data_len > 0:
639
data_len -= gnutls.record_send(self._c_object,
640
data[-data_len:],
641
data_len)
642
643
def bye(self):
644
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
645
646
# Error handling functions
647
def _error_code(result):
648
"""A function to raise exceptions on errors, suitable
649
for the 'restype' attribute on ctypes functions"""
650
if result >= 0:
651
return result
652
if result == gnutls.E_NO_CERTIFICATE_FOUND:
653
raise gnutls.CertificateSecurityError(code=result)
654
raise gnutls.Error(code=result)
655
656
def _retry_on_error(result, func, arguments):
657
"""A function to retry on some errors, suitable
658
for the 'errcheck' attribute on ctypes functions"""
659
while result < 0:
660
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
661
return _error_code(result)
662
result = func(*arguments)
663
return result
664
665
# Unless otherwise indicated, the function declarations below are
666
# all from the gnutls/gnutls.h C header file.
667
668
# Functions
669
priority_set_direct = _library.gnutls_priority_set_direct
670
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
671
ctypes.POINTER(ctypes.c_char_p)]
672
priority_set_direct.restype = _error_code
673
674
init = _library.gnutls_init
675
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
676
init.restype = _error_code
677
678
set_default_priority = _library.gnutls_set_default_priority
679
set_default_priority.argtypes = [session_t]
680
set_default_priority.restype = _error_code
681
682
record_send = _library.gnutls_record_send
683
record_send.argtypes = [session_t, ctypes.c_void_p,
684
ctypes.c_size_t]
685
record_send.restype = ctypes.c_ssize_t
686
record_send.errcheck = _retry_on_error
687
688
certificate_allocate_credentials = (
689
_library.gnutls_certificate_allocate_credentials)
690
certificate_allocate_credentials.argtypes = [
691
ctypes.POINTER(certificate_credentials_t)]
692
certificate_allocate_credentials.restype = _error_code
693
694
certificate_free_credentials = (
695
_library.gnutls_certificate_free_credentials)
696
certificate_free_credentials.argtypes = [
697
certificate_credentials_t]
698
certificate_free_credentials.restype = None
699
700
handshake_set_private_extensions = (
701
_library.gnutls_handshake_set_private_extensions)
702
handshake_set_private_extensions.argtypes = [session_t,
703
ctypes.c_int]
704
handshake_set_private_extensions.restype = None
705
706
credentials_set = _library.gnutls_credentials_set
707
credentials_set.argtypes = [session_t, credentials_type_t,
708
ctypes.c_void_p]
709
credentials_set.restype = _error_code
710
711
strerror = _library.gnutls_strerror
712
strerror.argtypes = [ctypes.c_int]
713
strerror.restype = ctypes.c_char_p
714
715
certificate_type_get = _library.gnutls_certificate_type_get
716
certificate_type_get.argtypes = [session_t]
717
certificate_type_get.restype = _error_code
718
719
certificate_get_peers = _library.gnutls_certificate_get_peers
720
certificate_get_peers.argtypes = [session_t,
721
ctypes.POINTER(ctypes.c_uint)]
722
certificate_get_peers.restype = ctypes.POINTER(datum_t)
723
724
global_set_log_level = _library.gnutls_global_set_log_level
725
global_set_log_level.argtypes = [ctypes.c_int]
726
global_set_log_level.restype = None
727
728
global_set_log_function = _library.gnutls_global_set_log_function
729
global_set_log_function.argtypes = [log_func]
730
global_set_log_function.restype = None
731
732
deinit = _library.gnutls_deinit
733
deinit.argtypes = [session_t]
734
deinit.restype = None
735
736
handshake = _library.gnutls_handshake
737
handshake.argtypes = [session_t]
738
handshake.restype = _error_code
739
handshake.errcheck = _retry_on_error
740
741
transport_set_ptr = _library.gnutls_transport_set_ptr
742
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
743
transport_set_ptr.restype = None
744
745
bye = _library.gnutls_bye
746
bye.argtypes = [session_t, close_request_t]
747
bye.restype = _error_code
748
bye.errcheck = _retry_on_error
749
750
check_version = _library.gnutls_check_version
751
check_version.argtypes = [ctypes.c_char_p]
752
check_version.restype = ctypes.c_char_p
753
754
_need_version = b"3.3.0"
755
if check_version(_need_version) is None:
756
raise self.Error("Needs GnuTLS {} or later"
757
.format(_need_version))
758
759
_tls_rawpk_version = b"3.6.6"
760
has_rawpk = bool(check_version(_tls_rawpk_version))
761
762
if has_rawpk:
763
# Types
764
class pubkey_st(ctypes.Structure):
765
_fields = []
766
pubkey_t = ctypes.POINTER(pubkey_st)
767
768
x509_crt_fmt_t = ctypes.c_int
769
770
# All the function declarations below are from gnutls/abstract.h
771
pubkey_init = _library.gnutls_pubkey_init
772
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
773
pubkey_init.restype = _error_code
774
775
pubkey_import = _library.gnutls_pubkey_import
776
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
777
x509_crt_fmt_t]
778
pubkey_import.restype = _error_code
779
780
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
781
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
782
ctypes.POINTER(ctypes.c_ubyte),
783
ctypes.POINTER(ctypes.c_size_t)]
784
pubkey_get_key_id.restype = _error_code
785
786
pubkey_deinit = _library.gnutls_pubkey_deinit
787
pubkey_deinit.argtypes = [pubkey_t]
788
pubkey_deinit.restype = None
789
else:
790
# All the function declarations below are from gnutls/openpgp.h
791
792
openpgp_crt_init = _library.gnutls_openpgp_crt_init
793
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
794
openpgp_crt_init.restype = _error_code
795
796
openpgp_crt_import = _library.gnutls_openpgp_crt_import
797
openpgp_crt_import.argtypes = [openpgp_crt_t,
798
ctypes.POINTER(datum_t),
799
openpgp_crt_fmt_t]
800
openpgp_crt_import.restype = _error_code
801
802
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
803
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
804
ctypes.POINTER(ctypes.c_uint)]
805
openpgp_crt_verify_self.restype = _error_code
806
807
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
808
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
809
openpgp_crt_deinit.restype = None
810
811
openpgp_crt_get_fingerprint = (
812
_library.gnutls_openpgp_crt_get_fingerprint)
813
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
814
ctypes.c_void_p,
815
ctypes.POINTER(
816
ctypes.c_size_t)]
817
openpgp_crt_get_fingerprint.restype = _error_code
818
819
if check_version(b"3.6.4"):
820
certificate_type_get2 = _library.gnutls_certificate_type_get2
821
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
822
certificate_type_get2.restype = _error_code
823
824
# Remove non-public functions
825
del _error_code, _retry_on_error
826
827
828
def call_pipe(connection, # : multiprocessing.Connection
829
func, *args, **kwargs):
830
"""This function is meant to be called by multiprocessing.Process
831
832
This function runs func(*args, **kwargs), and writes the resulting
833
return value on the provided multiprocessing.Connection.
834
"""
835
connection.send(func(*args, **kwargs))
836
connection.close()
837
838
839
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):
840
276
"""A representation of a client host served by this server.
841
277
842
278
Attributes:
843
approved: bool(); 'None' if not yet approved/disapproved
279
_approved: bool(); 'None' if not yet approved/disapproved
844
280
approval_delay: datetime.timedelta(); Time to wait for approval
845
281
approval_duration: datetime.timedelta(); Duration of one approval
846
checker: multiprocessing.Process(); a running checker process used
847
to see if the client lives. 'None' if no process is
848
running.
849
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
850
286
checker_command: string; External command which is run to check
851
287
if client lives. %() expansions are done at
852
288
runtime with vars(self) as dict, so that for
853
289
instance %(name)s can be used in the command.
854
checker_initiator_tag: a GLib event source tag, or None
290
checker_initiator_tag: a gobject event source tag, or None
855
291
created: datetime.datetime(); (UTC) object creation
856
client_structure: Object describing what attributes a client has
857
and is used for storing the client at exit
858
292
current_checker_command: string; current running checker_command
859
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
860
295
enabled: bool()
861
296
fingerprint: string (40 or 32 hexadecimal digits); used to
862
uniquely identify an OpenPGP client
863
key_id: string (64 hexadecimal digits); used to uniquely identify
864
a client using raw public keys
297
uniquely identify the client
865
298
host: string; available for use by the checker command
866
299
interval: datetime.timedelta(); How often to start a new checker
867
300
last_approval_request: datetime.datetime(); (UTC) or None
868
301
last_checked_ok: datetime.datetime(); (UTC) or None
869
last_checker_status: integer between 0 and 255 reflecting exit
870
status of last checker. -1 reflects crashed
871
checker, -2 means no checker completed yet.
872
last_checker_signal: The signal which killed the last checker, if
873
last_checker_status is -1
874
last_enabled: datetime.datetime(); (UTC) or None
302
last_enabled: datetime.datetime(); (UTC)
875
303
name: string; from the config file, used in log messages and
876
304
D-Bus identifiers
877
305
secret: bytestring; sent verbatim (over TLS) to client
878
306
timeout: datetime.timedelta(); How long from last_checked_ok
879
307
until this client is disabled
880
extended_timeout: extra long timeout when secret has been sent
308
extended_timeout: extra long timeout when password has been sent
881
309
runtime_expansions: Allowed attributes for runtime expansion.
882
310
expires: datetime.datetime(); time (UTC) when a client will be
883
311
disabled, or None
884
server_settings: The server_settings dict from main()
885
312
"""
886
313
887
314
runtime_expansions = ("approval_delay", "approval_duration",
888
"created", "enabled", "expires", "key_id",
889
"fingerprint", "host", "interval",
890
"last_approval_request", "last_checked_ok",
315
"created", "enabled", "fingerprint",
316
"host", "interval", "last_checked_ok",
891
317
"last_enabled", "name", "timeout")
892
client_defaults = {
893
"timeout": "PT5M",
894
"extended_timeout": "PT15M",
895
"interval": "PT2M",
896
"checker": "fping -q -- %%(host)s",
897
"host": "",
898
"approval_delay": "PT0S",
899
"approval_duration": "PT1S",
900
"approved_by_default": "True",
901
"enabled": "True",
902
}
903
904
@staticmethod
905
def config_parser(config):
906
"""Construct a new dict of client settings of this form:
907
{ client_name: {setting_name: value, ...}, ...}
908
with exceptions for any special settings as defined above.
909
NOTE: Must be a pure function. Must return the same result
910
value given the same arguments.
911
"""
912
settings = {}
913
for client_name in config.sections():
914
section = dict(config.items(client_name))
915
client = settings[client_name] = {}
916
917
client["host"] = section["host"]
918
# Reformat values from string types to Python types
919
client["approved_by_default"] = config.getboolean(
920
client_name, "approved_by_default")
921
client["enabled"] = config.getboolean(client_name,
922
"enabled")
923
924
# Uppercase and remove spaces from key_id and fingerprint
925
# for later comparison purposes with return value from the
926
# key_id() and fingerprint() functions
927
client["key_id"] = (section.get("key_id", "").upper()
928
.replace(" ", ""))
929
client["fingerprint"] = (section["fingerprint"].upper()
930
.replace(" ", ""))
931
if "secret" in section:
932
client["secret"] = codecs.decode(section["secret"]
933
.encode("utf-8"),
934
"base64")
935
elif "secfile" in section:
936
with open(os.path.expanduser(os.path.expandvars
937
(section["secfile"])),
938
"rb") as secfile:
939
client["secret"] = secfile.read()
940
else:
941
raise TypeError("No secret or secfile for section {}"
942
.format(section))
943
client["timeout"] = string_to_delta(section["timeout"])
944
client["extended_timeout"] = string_to_delta(
945
section["extended_timeout"])
946
client["interval"] = string_to_delta(section["interval"])
947
client["approval_delay"] = string_to_delta(
948
section["approval_delay"])
949
client["approval_duration"] = string_to_delta(
950
section["approval_duration"])
951
client["checker_command"] = section["checker"]
952
client["last_approval_request"] = None
953
client["last_checked_ok"] = None
954
client["last_checker_status"] = -2
955
956
return settings
957
958
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."""
959
338
self.name = name
960
if server_settings is None:
961
server_settings = {}
962
self.server_settings = server_settings
963
# adding all client settings
964
for setting, value in settings.items():
965
setattr(self, setting, value)
966
967
if self.enabled:
968
if not hasattr(self, "last_enabled"):
969
self.last_enabled = datetime.datetime.utcnow()
970
if not hasattr(self, "expires"):
971
self.expires = (datetime.datetime.utcnow()
972
+ self.timeout)
973
else:
974
self.last_enabled = None
975
self.expires = None
976
339
if config is None:
340
config = {}
977
341
logger.debug("Creating client %r", self.name)
978
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(" ", ""))
979
347
logger.debug(" Fingerprint: %s", self.fingerprint)
980
self.created = settings.get("created",
981
datetime.datetime.utcnow())
982
983
# 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
984
369
self.checker = None
985
370
self.checker_initiator_tag = None
986
371
self.disable_initiator_tag = None
372
self.expires = None
987
373
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
988
375
self.current_checker_command = None
989
self.approved = None
376
self.last_connect = None
377
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
379
True)
990
380
self.approvals_pending = 0
991
self.changedstate = multiprocessing_manager.Condition(
992
multiprocessing_manager.Lock())
993
self.client_structure = [attr
994
for attr in self.__dict__.keys()
995
if not attr.startswith("_")]
996
self.client_structure.append("client_structure")
997
998
for name, t in inspect.getmembers(
999
type(self), lambda obj: isinstance(obj, property)):
1000
if not name.startswith("_"):
1001
self.client_structure.append(name)
1002
1003
# 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
1004
389
def send_changedstate(self):
1005
with self.changedstate:
1006
self.changedstate.notify_all()
1007
390
self.changedstate.acquire()
391
self.changedstate.notify_all()
392
self.changedstate.release()
393
1008
394
def enable(self):
1009
395
"""Start this client's checker and timeout hooks"""
1010
396
if getattr(self, "enabled", False):
1011
397
# Already enabled
1012
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
1013
406
self.expires = datetime.datetime.utcnow() + self.timeout
407
self.disable_initiator_tag = (gobject.timeout_add
408
(self.timeout_milliseconds(),
409
self.disable))
1014
410
self.enabled = True
1015
411
self.last_enabled = datetime.datetime.utcnow()
1016
self.init_checker()
1017
self.send_changedstate()
1018
412
# Also start a new checker *right now*.
413
self.start_checker()
414
1019
415
def disable(self, quiet=True):
1020
416
"""Disable this client."""
1021
417
if not getattr(self, "enabled", False):
1022
418
return False
1023
419
if not quiet:
420
self.send_changedstate()
421
if not quiet:
1024
422
logger.info("Disabling client %s", self.name)
1025
if getattr(self, "disable_initiator_tag", None) is not None:
1026
GLib.source_remove(self.disable_initiator_tag)
423
if getattr(self, "disable_initiator_tag", False):
424
gobject.source_remove(self.disable_initiator_tag)
1027
425
self.disable_initiator_tag = None
1028
426
self.expires = None
1029
if getattr(self, "checker_initiator_tag", None) is not None:
1030
GLib.source_remove(self.checker_initiator_tag)
427
if getattr(self, "checker_initiator_tag", False):
428
gobject.source_remove(self.checker_initiator_tag)
1031
429
self.checker_initiator_tag = None
1032
430
self.stop_checker()
431
if self.disable_hook:
432
self.disable_hook(self)
1033
433
self.enabled = False
1034
if not quiet:
1035
self.send_changedstate()
1036
# 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
1037
435
return False
1038
436
1039
437
def __del__(self):
438
self.disable_hook = None
1040
439
self.disable()
1041
1042
def init_checker(self):
1043
# Schedule a new checker to be started an 'interval' from now,
1044
# and every interval from then on.
1045
if self.checker_initiator_tag is not None:
1046
GLib.source_remove(self.checker_initiator_tag)
1047
self.checker_initiator_tag = GLib.timeout_add(
1048
random.randrange(int(self.interval.total_seconds() * 1000
1049
+ 1)),
1050
self.start_checker)
1051
# Schedule a disable() when 'timeout' has passed
1052
if self.disable_initiator_tag is not None:
1053
GLib.source_remove(self.disable_initiator_tag)
1054
self.disable_initiator_tag = GLib.timeout_add(
1055
int(self.timeout.total_seconds() * 1000), self.disable)
1056
# Also start a new checker *right now*.
1057
self.start_checker()
1058
1059
def checker_callback(self, source, condition, connection,
1060
command):
440
441
def checker_callback(self, pid, condition, command):
1061
442
"""The checker has completed, so take appropriate actions."""
1062
# Read return code from connection (see call_pipe)
1063
returncode = connection.recv()
1064
connection.close()
1065
if self.checker is not None:
1066
self.checker.join()
1067
443
self.checker_callback_tag = None
1068
444
self.checker = None
1069
1070
if returncode >= 0:
1071
self.last_checker_status = returncode
1072
self.last_checker_signal = None
1073
if self.last_checker_status == 0:
445
if os.WIFEXITED(condition):
446
exitstatus = os.WEXITSTATUS(condition)
447
if exitstatus == 0:
1074
448
logger.info("Checker for %(name)s succeeded",
1075
449
vars(self))
1076
450
self.checked_ok()
1077
451
else:
1078
logger.info("Checker for %(name)s failed", vars(self))
452
logger.info("Checker for %(name)s failed",
453
vars(self))
1079
454
else:
1080
self.last_checker_status = -1
1081
self.last_checker_signal = -returncode
1082
455
logger.warning("Checker for %(name)s crashed?",
1083
456
vars(self))
1084
return False
1085
1086
def checked_ok(self):
1087
"""Assert that the client has been seen, alive and well."""
1088
self.last_checked_ok = datetime.datetime.utcnow()
1089
self.last_checker_status = 0
1090
self.last_checker_signal = None
1091
self.bump_timeout()
1092
1093
def bump_timeout(self, timeout=None):
1094
"""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
"""
1095
464
if timeout is None:
1096
465
timeout = self.timeout
466
self.last_checked_ok = datetime.datetime.utcnow()
1097
467
if self.disable_initiator_tag is not None:
1098
GLib.source_remove(self.disable_initiator_tag)
1099
self.disable_initiator_tag = None
468
gobject.source_remove(self.disable_initiator_tag)
1100
469
if getattr(self, "enabled", False):
1101
self.disable_initiator_tag = GLib.timeout_add(
1102
int(timeout.total_seconds() * 1000), self.disable)
470
self.disable_initiator_tag = (gobject.timeout_add
471
(_timedelta_to_milliseconds
472
(timeout), self.disable))
1103
473
self.expires = datetime.datetime.utcnow() + timeout
1104
474
1105
475
def need_approval(self):
1106
476
self.last_approval_request = datetime.datetime.utcnow()
1107
477
1108
478
def start_checker(self):
1109
479
"""Start a new checker subprocess if one is not running.
1110
480
1111
481
If a checker already exists, leave it running and do
1112
482
nothing."""
1113
483
# The reason for not killing a running checker is that if we
1114
# did that, and if a checker (for some reason) started running
1115
# slowly and taking more than 'interval' time, then the client
1116
# would inevitably timeout, since no checker would get a
1117
# 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
1118
488
# checkers alone, the checker would have to take more time
1119
489
# than 'timeout' for the client to be disabled, which is as it
1120
490
# should be.
1121
1122
if self.checker is not None and not self.checker.is_alive():
1123
logger.warning("Checker was not alive; joining")
1124
self.checker.join()
1125
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)
1126
505
# Start a new checker if needed
1127
506
if self.checker is None:
1128
# Escape attributes for the shell
1129
escaped_attrs = {
1130
attr: re.escape(str(getattr(self, attr)))
1131
for attr in self.runtime_expansions}
1132
507
try:
1133
command = self.checker_command % escaped_attrs
1134
except TypeError as error:
1135
logger.error('Could not format string "%s"',
1136
self.checker_command,
1137
exc_info=error)
1138
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
1139
526
self.current_checker_command = command
1140
logger.info("Starting checker %r for %s", command,
1141
self.name)
1142
# We don't need to redirect stdout and stderr, since
1143
# in normal mode, that is already done by daemon(),
1144
# and in debug mode we don't want to. (Stdin is
1145
# always replaced by /dev/null.)
1146
# The exception is when not debugging but nevertheless
1147
# running in the foreground; use the previously
1148
# created wnull.
1149
popen_args = {"close_fds": True,
1150
"shell": True,
1151
"cwd": "/"}
1152
if (not self.server_settings["debug"]
1153
and self.server_settings["foreground"]):
1154
popen_args.update({"stdout": wnull,
1155
"stderr": wnull})
1156
pipe = multiprocessing.Pipe(duplex=False)
1157
self.checker = multiprocessing.Process(
1158
target=call_pipe,
1159
args=(pipe[1], subprocess.call, command),
1160
kwargs=popen_args)
1161
self.checker.start()
1162
self.checker_callback_tag = GLib.io_add_watch(
1163
GLib.IOChannel.unix_new(pipe[0].fileno()),
1164
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1165
self.checker_callback, pipe[0], command)
1166
# 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
1167
551
return True
1168
552
1169
553
def stop_checker(self):
1170
554
"""Force the checker process, if any, to stop."""
1171
555
if self.checker_callback_tag:
1172
GLib.source_remove(self.checker_callback_tag)
556
gobject.source_remove(self.checker_callback_tag)
1173
557
self.checker_callback_tag = None
1174
558
if getattr(self, "checker", None) is None:
1175
559
return
1176
560
logger.debug("Stopping checker for %(name)s", vars(self))
1177
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
1178
569
self.checker = None
1179
570
1180
571
1181
def dbus_service_property(dbus_interface,
1182
signature="v",
1183
access="readwrite",
1184
byte_arrays=False):
572
def dbus_service_property(dbus_interface, signature="v",
573
access="readwrite", byte_arrays=False):
1185
574
"""Decorators for marking methods of a DBusObjectWithProperties to
1186
575
become properties on the D-Bus.
1187
576
1188
577
The decorated method will be called with no arguments by "Get"
1189
578
and with one argument by "Set".
1190
579
1191
580
The parameters, where they are supported, are the same as
1192
581
dbus.service.method, except there is only "signature", since the
1193
582
type from Get() and the type sent to Set() is the same.
1196
585
# "Set" method, so we fail early here:
1197
586
if byte_arrays and signature != "ay":
1198
587
raise ValueError("Byte arrays not supported for non-'ay'"
1199
" signature {!r}".format(signature))
1200
588
" signature %r" % signature)
1201
589
def decorator(func):
1202
590
func._dbus_is_property = True
1203
591
func._dbus_interface = dbus_interface
1206
594
func._dbus_name = func.__name__
1207
595
if func._dbus_name.endswith("_dbus_property"):
1208
596
func._dbus_name = func._dbus_name[:-14]
1209
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1210
return func
1211
1212
return decorator
1213
1214
1215
def dbus_interface_annotations(dbus_interface):
1216
"""Decorator for marking functions returning interface annotations
1217
1218
Usage:
1219
1220
@dbus_interface_annotations("org.example.Interface")
1221
def _foo(self): # Function name does not matter
1222
return {"org.freedesktop.DBus.Deprecated": "true",
1223
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1224
"false"}
1225
"""
1226
1227
def decorator(func):
1228
func._dbus_is_interface = True
1229
func._dbus_interface = dbus_interface
1230
func._dbus_name = dbus_interface
1231
return func
1232
1233
return decorator
1234
1235
1236
def dbus_annotations(annotations):
1237
"""Decorator to annotate D-Bus methods, signals or properties
1238
Usage:
1239
1240
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1241
"org.freedesktop.DBus.Property."
1242
"EmitsChangedSignal": "false"})
1243
@dbus_service_property("org.example.Interface", signature="b",
1244
access="r")
1245
def Property_dbus_property(self):
1246
return dbus.Boolean(False)
1247
1248
See also the DBusObjectWithAnnotations class.
1249
"""
1250
1251
def decorator(func):
1252
func._dbus_annotations = annotations
1253
return func
1254
597
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
598
return func
1255
599
return decorator
1256
600
1257
601
1258
602
class DBusPropertyException(dbus.exceptions.DBusException):
1259
603
"""A base class for D-Bus property-related exceptions
1260
604
"""
1261
pass
605
def __unicode__(self):
606
return unicode(str(self))
1262
607
1263
608
1264
609
class DBusPropertyAccessException(DBusPropertyException):
1273
618
pass
1274
619
1275
620
1276
class DBusObjectWithAnnotations(dbus.service.Object):
1277
"""A D-Bus object with annotations.
1278
1279
Classes inheriting from this can use the dbus_annotations
1280
decorator to add annotations to methods or signals.
1281
"""
1282
1283
@staticmethod
1284
def _is_dbus_thing(thing):
1285
"""Returns a function testing if an attribute is a D-Bus thing
1286
1287
If called like _is_dbus_thing("method") it returns a function
1288
suitable for use as predicate to inspect.getmembers().
1289
"""
1290
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1291
False)
1292
1293
def _get_all_dbus_things(self, thing):
1294
"""Returns a generator of (name, attribute) pairs
1295
"""
1296
return ((getattr(athing.__get__(self), "_dbus_name", name),
1297
athing.__get__(self))
1298
for cls in self.__class__.__mro__
1299
for name, athing in
1300
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1301
1302
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1303
out_signature="s",
1304
path_keyword='object_path',
1305
connection_keyword='connection')
1306
def Introspect(self, object_path, connection):
1307
"""Overloading of standard D-Bus method.
1308
1309
Inserts annotation tags on methods and signals.
1310
"""
1311
xmlstring = dbus.service.Object.Introspect(self, object_path,
1312
connection)
1313
try:
1314
document = xml.dom.minidom.parseString(xmlstring)
1315
1316
for if_tag in document.getElementsByTagName("interface"):
1317
# Add annotation tags
1318
for typ in ("method", "signal"):
1319
for tag in if_tag.getElementsByTagName(typ):
1320
annots = dict()
1321
for name, prop in (self.
1322
_get_all_dbus_things(typ)):
1323
if (name == tag.getAttribute("name")
1324
and prop._dbus_interface
1325
== if_tag.getAttribute("name")):
1326
annots.update(getattr(
1327
prop, "_dbus_annotations", {}))
1328
for name, value in annots.items():
1329
ann_tag = document.createElement(
1330
"annotation")
1331
ann_tag.setAttribute("name", name)
1332
ann_tag.setAttribute("value", value)
1333
tag.appendChild(ann_tag)
1334
# Add interface annotation tags
1335
for annotation, value in dict(
1336
itertools.chain.from_iterable(
1337
annotations().items()
1338
for name, annotations
1339
in self._get_all_dbus_things("interface")
1340
if name == if_tag.getAttribute("name")
1341
)).items():
1342
ann_tag = document.createElement("annotation")
1343
ann_tag.setAttribute("name", annotation)
1344
ann_tag.setAttribute("value", value)
1345
if_tag.appendChild(ann_tag)
1346
# Fix argument name for the Introspect method itself
1347
if (if_tag.getAttribute("name")
1348
== dbus.INTROSPECTABLE_IFACE):
1349
for cn in if_tag.getElementsByTagName("method"):
1350
if cn.getAttribute("name") == "Introspect":
1351
for arg in cn.getElementsByTagName("arg"):
1352
if (arg.getAttribute("direction")
1353
== "out"):
1354
arg.setAttribute("name",
1355
"xml_data")
1356
xmlstring = document.toxml("utf-8")
1357
document.unlink()
1358
except (AttributeError, xml.dom.DOMException,
1359
xml.parsers.expat.ExpatError) as error:
1360
logger.error("Failed to override Introspection method",
1361
exc_info=error)
1362
return xmlstring
1363
1364
1365
class DBusObjectWithProperties(DBusObjectWithAnnotations):
621
class DBusObjectWithProperties(dbus.service.Object):
1366
622
"""A D-Bus object with properties.
1367
623
1368
624
Classes inheriting from this can use the dbus_service_property
1369
625
decorator to expose methods as D-Bus properties. It exposes the
1370
626
standard Get(), Set(), and GetAll() methods on the D-Bus.
1371
627
"""
1372
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
1373
641
def _get_dbus_property(self, interface_name, property_name):
1374
642
"""Returns a bound method if one exists which is a D-Bus
1375
643
property with the specified name and interface.
1376
644
"""
1377
for cls in self.__class__.__mro__:
1378
for name, value in inspect.getmembers(
1379
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)):
1380
648
if (value._dbus_name == property_name
1381
649
and value._dbus_interface == interface_name):
1382
650
return value.__get__(self)
1383
651
1384
652
# No such property
1385
raise DBusPropertyNotFound("{}:{}.{}".format(
1386
self.dbus_object_path, interface_name, property_name))
1387
1388
@classmethod
1389
def _get_all_interface_names(cls):
1390
"""Get a sequence of all interfaces supported by an object"""
1391
return (name for name in set(getattr(getattr(x, attr),
1392
"_dbus_interface", None)
1393
for x in (inspect.getmro(cls))
1394
for attr in dir(x))
1395
if name is not None)
1396
1397
@dbus.service.method(dbus.PROPERTIES_IFACE,
1398
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",
1399
658
out_signature="v")
1400
659
def Get(self, interface_name, property_name):
1401
660
"""Standard D-Bus property Get() method, see D-Bus standard.
1407
666
if not hasattr(value, "variant_level"):
1408
667
return value
1409
668
return type(value)(value, variant_level=value.variant_level+1)
1410
669
1411
670
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1412
671
def Set(self, interface_name, property_name, value):
1413
672
"""Standard D-Bus property Set() method, see D-Bus standard.
1419
678
# The byte_arrays option is not supported yet on
1420
679
# signatures other than "ay".
1421
680
if prop._dbus_signature != "ay":
1422
raise ValueError("Byte arrays not supported for non-"
1423
"'ay' signature {!r}"
1424
.format(prop._dbus_signature))
1425
value = dbus.ByteArray(bytes(value))
681
raise ValueError
682
value = dbus.ByteArray(''.join(unichr(byte)
683
for byte in value))
1426
684
prop(value)
1427
1428
@dbus.service.method(dbus.PROPERTIES_IFACE,
1429
in_signature="s",
685
686
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1430
687
out_signature="a{sv}")
1431
688
def GetAll(self, interface_name):
1432
689
"""Standard D-Bus property GetAll() method, see D-Bus
1433
690
standard.
1434
691
1435
692
Note: Will not include properties with access="write".
1436
693
"""
1437
properties = {}
1438
for name, prop in self._get_all_dbus_things("property"):
694
all = {}
695
for name, prop in self._get_all_dbus_properties():
1439
696
if (interface_name
1440
697
and interface_name != prop._dbus_interface):
1441
698
# Interface non-empty but did not match
1445
702
continue
1446
703
value = prop()
1447
704
if not hasattr(value, "variant_level"):
1448
properties[name] = value
705
all[name] = value
1449
706
continue
1450
properties[name] = type(value)(
1451
value, variant_level=value.variant_level + 1)
1452
return dbus.Dictionary(properties, signature="sv")
1453
1454
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1455
def PropertiesChanged(self, interface_name, changed_properties,
1456
invalidated_properties):
1457
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1458
standard.
1459
"""
1460
pass
1461
707
all[name] = type(value)(value, variant_level=
708
value.variant_level+1)
709
return dbus.Dictionary(all, signature="sv")
710
1462
711
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1463
712
out_signature="s",
1464
713
path_keyword='object_path',
1465
714
connection_keyword='connection')
1466
715
def Introspect(self, object_path, connection):
1467
"""Overloading of standard D-Bus method.
1468
1469
Inserts property tags and interface annotation tags.
716
"""Standard D-Bus method, overloaded to insert property tags.
1470
717
"""
1471
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1472
object_path,
1473
connection)
718
xmlstring = dbus.service.Object.Introspect(self, object_path,
719
connection)
1474
720
try:
1475
721
document = xml.dom.minidom.parseString(xmlstring)
1476
1477
722
def make_tag(document, name, prop):
1478
723
e = document.createElement("property")
1479
724
e.setAttribute("name", name)
1480
725
e.setAttribute("type", prop._dbus_signature)
1481
726
e.setAttribute("access", prop._dbus_access)
1482
727
return e
1483
1484
728
for if_tag in document.getElementsByTagName("interface"):
1485
# Add property tags
1486
729
for tag in (make_tag(document, name, prop)
1487
730
for name, prop
1488
in self._get_all_dbus_things("property")
731
in self._get_all_dbus_properties()
1489
732
if prop._dbus_interface
1490
733
== if_tag.getAttribute("name")):
1491
734
if_tag.appendChild(tag)
1492
# Add annotation tags for properties
1493
for tag in if_tag.getElementsByTagName("property"):
1494
annots = dict()
1495
for name, prop in self._get_all_dbus_things(
1496
"property"):
1497
if (name == tag.getAttribute("name")
1498
and prop._dbus_interface
1499
== if_tag.getAttribute("name")):
1500
annots.update(getattr(
1501
prop, "_dbus_annotations", {}))
1502
for name, value in annots.items():
1503
ann_tag = document.createElement(
1504
"annotation")
1505
ann_tag.setAttribute("name", name)
1506
ann_tag.setAttribute("value", value)
1507
tag.appendChild(ann_tag)
1508
735
# Add the names to the return values for the
1509
736
# "org.freedesktop.DBus.Properties" methods
1510
737
if (if_tag.getAttribute("name")
1525
752
except (AttributeError, xml.dom.DOMException,
1526
753
xml.parsers.expat.ExpatError) as error:
1527
754
logger.error("Failed to override Introspection method",
1528
exc_info=error)
1529
return xmlstring
1530
1531
1532
try:
1533
dbus.OBJECT_MANAGER_IFACE
1534
except AttributeError:
1535
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1536
1537
1538
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1539
"""A D-Bus object with an ObjectManager.
1540
1541
Classes inheriting from this exposes the standard
1542
GetManagedObjects call and the InterfacesAdded and
1543
InterfacesRemoved signals on the standard
1544
"org.freedesktop.DBus.ObjectManager" interface.
1545
1546
Note: No signals are sent automatically; they must be sent
1547
manually.
1548
"""
1549
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1550
out_signature="a{oa{sa{sv}}}")
1551
def GetManagedObjects(self):
1552
"""This function must be overridden"""
1553
raise NotImplementedError()
1554
1555
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1556
signature="oa{sa{sv}}")
1557
def InterfacesAdded(self, object_path, interfaces_and_properties):
1558
pass
1559
1560
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1561
def InterfacesRemoved(self, object_path, interfaces):
1562
pass
1563
1564
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1565
out_signature="s",
1566
path_keyword='object_path',
1567
connection_keyword='connection')
1568
def Introspect(self, object_path, connection):
1569
"""Overloading of standard D-Bus method.
1570
1571
Override return argument name of GetManagedObjects to be
1572
"objpath_interfaces_and_properties"
1573
"""
1574
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1575
object_path,
1576
connection)
1577
try:
1578
document = xml.dom.minidom.parseString(xmlstring)
1579
1580
for if_tag in document.getElementsByTagName("interface"):
1581
# Fix argument name for the GetManagedObjects method
1582
if (if_tag.getAttribute("name")
1583
== dbus.OBJECT_MANAGER_IFACE):
1584
for cn in if_tag.getElementsByTagName("method"):
1585
if (cn.getAttribute("name")
1586
== "GetManagedObjects"):
1587
for arg in cn.getElementsByTagName("arg"):
1588
if (arg.getAttribute("direction")
1589
== "out"):
1590
arg.setAttribute(
1591
"name",
1592
"objpath_interfaces"
1593
"_and_properties")
1594
xmlstring = document.toxml("utf-8")
1595
document.unlink()
1596
except (AttributeError, xml.dom.DOMException,
1597
xml.parsers.expat.ExpatError) as error:
1598
logger.error("Failed to override Introspection method",
1599
exc_info=error)
1600
return xmlstring
1601
1602
1603
def datetime_to_dbus(dt, variant_level=0):
755
error)
756
return xmlstring
757
758
759
def datetime_to_dbus (dt, variant_level=0):
1604
760
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1605
761
if dt is None:
1606
return dbus.String("", variant_level=variant_level)
1607
return dbus.String(dt.isoformat(), variant_level=variant_level)
1608
1609
1610
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1611
"""A class decorator; applied to a subclass of
1612
dbus.service.Object, it will add alternate D-Bus attributes with
1613
interface names according to the "alt_interface_names" mapping.
1614
Usage:
1615
1616
@alternate_dbus_interfaces({"org.example.Interface":
1617
"net.example.AlternateInterface"})
1618
class SampleDBusObject(dbus.service.Object):
1619
@dbus.service.method("org.example.Interface")
1620
def SampleDBusMethod():
1621
pass
1622
1623
The above "SampleDBusMethod" on "SampleDBusObject" will be
1624
reachable via two interfaces: "org.example.Interface" and
1625
"net.example.AlternateInterface", the latter of which will have
1626
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1627
"true", unless "deprecate" is passed with a False value.
1628
1629
This works for methods and signals, and also for D-Bus properties
1630
(from DBusObjectWithProperties) and interfaces (from the
1631
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.
1632
770
"""
1633
1634
def wrapper(cls):
1635
for orig_interface_name, alt_interface_name in (
1636
alt_interface_names.items()):
1637
attr = {}
1638
interface_names = set()
1639
# Go though all attributes of the class
1640
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):
1641
778
# Ignore non-D-Bus attributes, and D-Bus attributes
1642
779
# with the wrong interface name
1643
780
if (not hasattr(attribute, "_dbus_interface")
1644
or not attribute._dbus_interface.startswith(
1645
orig_interface_name)):
781
or not attribute._dbus_interface
782
.startswith("se.recompile.Mandos")):
1646
783
continue
1647
784
# Create an alternate D-Bus interface name based on
1648
785
# the current name
1649
alt_interface = attribute._dbus_interface.replace(
1650
orig_interface_name, alt_interface_name)
1651
interface_names.add(alt_interface)
786
alt_interface = (attribute._dbus_interface
787
.replace("se.recompile.Mandos",
788
"se.bsnet.fukt.Mandos"))
1652
789
# Is this a D-Bus signal?
1653
790
if getattr(attribute, "_dbus_is_signal", False):
1654
# Extract the original non-method undecorated
1655
# function by black magic
1656
if sys.version_info.major == 2:
1657
nonmethod_func = (dict(
791
# Extract the original non-method function by
792
# black magic
793
nonmethod_func = (dict(
1658
794
zip(attribute.func_code.co_freevars,
1659
attribute.__closure__))
1660
["func"].cell_contents)
1661
else:
1662
nonmethod_func = (dict(
1663
zip(attribute.__code__.co_freevars,
1664
attribute.__closure__))
1665
["func"].cell_contents)
795
attribute.__closure__))["func"]
796
.cell_contents)
1666
797
# Create a new, but exactly alike, function
1667
798
# object, and decorate it to be a new D-Bus signal
1668
799
# with the alternate D-Bus interface name
1669
new_function = copy_function(nonmethod_func)
1670
new_function = (dbus.service.signal(
1671
alt_interface,
1672
attribute._dbus_signature)(new_function))
1673
# Copy annotations, if any
1674
try:
1675
new_function._dbus_annotations = dict(
1676
attribute._dbus_annotations)
1677
except AttributeError:
1678
pass
1679
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)))
1680
809
# Define a creator of a function to call both the
1681
# original and alternate functions, so both the
1682
# original and alternate signals gets sent when
1683
# the function is called
810
# old and new functions, so both the old and new
811
# signals gets sent when the function is called
1684
812
def fixscope(func1, func2):
1685
813
"""This function is a scope container to pass
1686
814
func1 and func2 to the "call_both" function
1687
815
outside of its arguments"""
1688
1689
@functools.wraps(func2)
1690
816
def call_both(*args, **kwargs):
1691
817
"""This function will emit two D-Bus
1692
818
signals by calling func1 and func2"""
1693
819
func1(*args, **kwargs)
1694
820
func2(*args, **kwargs)
1695
# Make wrapper function look like a D-Bus
1696
# signal
1697
for name, attr in inspect.getmembers(func2):
1698
if name.startswith("_dbus_"):
1699
setattr(call_both, name, attr)
1700
1701
821
return call_both
1702
822
# Create the "call_both" function and add it to
1703
823
# the class
1704
attr[attrname] = fixscope(attribute, new_function)
824
attr[attrname] = fixscope(attribute,
825
new_function)
1705
826
# Is this a D-Bus method?
1706
827
elif getattr(attribute, "_dbus_is_method", False):
1707
828
# Create a new, but exactly alike, function
1708
829
# object. Decorate it to be a new D-Bus method
1709
830
# with the alternate D-Bus interface name. Add it
1710
831
# to the class.
1711
attr[attrname] = (
1712
dbus.service.method(
1713
alt_interface,
1714
attribute._dbus_in_signature,
1715
attribute._dbus_out_signature)
1716
(copy_function(attribute)))
1717
# Copy annotations, if any
1718
try:
1719
attr[attrname]._dbus_annotations = dict(
1720
attribute._dbus_annotations)
1721
except AttributeError:
1722
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)))
1723
842
# Is this a D-Bus property?
1724
843
elif getattr(attribute, "_dbus_is_property", False):
1725
844
# Create a new, but exactly alike, function
1726
845
# object, and decorate it to be a new D-Bus
1727
846
# property with the alternate D-Bus interface
1728
847
# name. Add it to the class.
1729
attr[attrname] = (dbus_service_property(
1730
alt_interface, attribute._dbus_signature,
1731
attribute._dbus_access,
1732
attribute._dbus_get_args_options
1733
["byte_arrays"])
1734
(copy_function(attribute)))
1735
# Copy annotations, if any
1736
try:
1737
attr[attrname]._dbus_annotations = dict(
1738
attribute._dbus_annotations)
1739
except AttributeError:
1740
pass
1741
# Is this a D-Bus interface?
1742
elif getattr(attribute, "_dbus_is_interface", False):
1743
# Create a new, but exactly alike, function
1744
# object. Decorate it to be a new D-Bus interface
1745
# with the alternate D-Bus interface name. Add it
1746
# to the class.
1747
attr[attrname] = (
1748
dbus_interface_annotations(alt_interface)
1749
(copy_function(attribute)))
1750
if deprecate:
1751
# Deprecate all alternate interfaces
1752
iname = "_AlternateDBusNames_interface_annotation{}"
1753
for interface_name in interface_names:
1754
1755
@dbus_interface_annotations(interface_name)
1756
def func(self):
1757
return {"org.freedesktop.DBus.Deprecated":
1758
"true"}
1759
# Find an unused name
1760
for aname in (iname.format(i)
1761
for i in itertools.count()):
1762
if aname not in attr:
1763
attr[aname] = func
1764
break
1765
if interface_names:
1766
# Replace the class with a new subclass of it with
1767
# methods, signals, etc. as created above.
1768
if sys.version_info.major == 2:
1769
cls = type(b"{}Alternate".format(cls.__name__),
1770
(cls, ), attr)
1771
else:
1772
cls = type("{}Alternate".format(cls.__name__),
1773
(cls, ), attr)
1774
return cls
1775
1776
return wrapper
1777
1778
1779
@alternate_dbus_interfaces({"se.recompile.Mandos":
1780
"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
1781
863
class ClientDBus(Client, DBusObjectWithProperties):
1782
864
"""A Client class using D-Bus
1783
865
1784
866
Attributes:
1785
867
dbus_object_path: dbus.ObjectPath
1786
868
bus: dbus.SystemBus()
1787
869
"""
1788
870
1789
871
runtime_expansions = (Client.runtime_expansions
1790
+ ("dbus_object_path", ))
1791
1792
_interface = "se.recompile.Mandos.Client"
1793
872
+ ("dbus_object_path",))
873
1794
874
# dbus.service.Object doesn't use super(), so we can't either.
1795
1796
def __init__(self, bus=None, *args, **kwargs):
875
876
def __init__(self, bus = None, *args, **kwargs):
877
self._approvals_pending = 0
1797
878
self.bus = bus
1798
879
Client.__init__(self, *args, **kwargs)
1799
880
# Only now, when this client is initialized, can it show up on
1800
881
# the D-Bus
1801
client_object_name = str(self.name).translate(
882
client_object_name = unicode(self.name).translate(
1802
883
{ord("."): ord("_"),
1803
884
ord("-"): ord("_")})
1804
self.dbus_object_path = dbus.ObjectPath(
1805
"/clients/" + client_object_name)
885
self.dbus_object_path = (dbus.ObjectPath
886
("/clients/" + client_object_name))
1806
887
DBusObjectWithProperties.__init__(self, self.bus,
1807
888
self.dbus_object_path)
1808
1809
def notifychangeproperty(transform_func, dbus_name,
1810
type_func=lambda x: x,
1811
variant_level=1,
1812
invalidate_only=False,
1813
_interface=_interface):
889
890
def notifychangeproperty(transform_func,
891
dbus_name, type_func=lambda x: x,
892
variant_level=1):
1814
893
""" Modify a variable so that it's a property which announces
1815
894
its changes to DBus.
1816
895
1821
900
to the D-Bus. Default: no transform
1822
901
variant_level: D-Bus variant level. Default: 1
1823
902
"""
1824
attrname = "_{}".format(dbus_name)
1825
903
attrname = "_{0}".format(dbus_name)
1826
904
def setter(self, value):
1827
905
if hasattr(self, "dbus_object_path"):
1828
906
if (not hasattr(self, attrname) or
1829
907
type_func(getattr(self, attrname, None))
1830
908
!= type_func(value)):
1831
if invalidate_only:
1832
self.PropertiesChanged(
1833
_interface, dbus.Dictionary(),
1834
dbus.Array((dbus_name, )))
1835
else:
1836
dbus_value = transform_func(
1837
type_func(value),
1838
variant_level=variant_level)
1839
self.PropertyChanged(dbus.String(dbus_name),
1840
dbus_value)
1841
self.PropertiesChanged(
1842
_interface,
1843
dbus.Dictionary({dbus.String(dbus_name):
1844
dbus_value}),
1845
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)
1846
914
setattr(self, attrname, value)
1847
915
1848
916
return property(lambda self: getattr(self, attrname), setter)
1849
917
918
1850
919
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1851
920
approvals_pending = notifychangeproperty(dbus.Boolean,
1852
921
"ApprovalPending",
1853
type_func=bool)
922
type_func = bool)
1854
923
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1855
924
last_enabled = notifychangeproperty(datetime_to_dbus,
1856
925
"LastEnabled")
1857
checker = notifychangeproperty(
1858
dbus.Boolean, "CheckerRunning",
1859
type_func=lambda checker: checker is not None)
926
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
927
type_func = lambda checker:
928
checker is not None)
1860
929
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1861
930
"LastCheckedOK")
1862
last_checker_status = notifychangeproperty(dbus.Int16,
1863
"LastCheckerStatus")
1864
931
last_approval_request = notifychangeproperty(
1865
932
datetime_to_dbus, "LastApprovalRequest")
1866
933
approved_by_default = notifychangeproperty(dbus.Boolean,
1867
934
"ApprovedByDefault")
1868
approval_delay = notifychangeproperty(
1869
dbus.UInt64, "ApprovalDelay",
1870
type_func=lambda td: td.total_seconds() * 1000)
935
approval_delay = notifychangeproperty(dbus.UInt16,
936
"ApprovalDelay",
937
type_func =
938
_timedelta_to_milliseconds)
1871
939
approval_duration = notifychangeproperty(
1872
dbus.UInt64, "ApprovalDuration",
1873
type_func=lambda td: td.total_seconds() * 1000)
940
dbus.UInt16, "ApprovalDuration",
941
type_func = _timedelta_to_milliseconds)
1874
942
host = notifychangeproperty(dbus.String, "Host")
1875
timeout = notifychangeproperty(
1876
dbus.UInt64, "Timeout",
1877
type_func=lambda td: td.total_seconds() * 1000)
943
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
944
type_func =
945
_timedelta_to_milliseconds)
1878
946
extended_timeout = notifychangeproperty(
1879
dbus.UInt64, "ExtendedTimeout",
1880
type_func=lambda td: td.total_seconds() * 1000)
1881
interval = notifychangeproperty(
1882
dbus.UInt64, "Interval",
1883
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)
1884
953
checker_command = notifychangeproperty(dbus.String, "Checker")
1885
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1886
invalidate_only=True)
1887
954
1888
955
del notifychangeproperty
1889
956
1890
957
def __del__(self, *args, **kwargs):
1891
958
try:
1892
959
self.remove_from_connection()
1895
962
if hasattr(DBusObjectWithProperties, "__del__"):
1896
963
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1897
964
Client.__del__(self, *args, **kwargs)
1898
1899
def checker_callback(self, source, condition,
1900
connection, command, *args, **kwargs):
1901
ret = Client.checker_callback(self, source, condition,
1902
connection, command, *args,
1903
**kwargs)
1904
exitstatus = self.last_checker_status
1905
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)
1906
972
# Emit D-Bus signal
1907
973
self.CheckerCompleted(dbus.Int16(exitstatus),
1908
# This is specific to GNU libC
1909
dbus.Int64(exitstatus << 8),
974
dbus.Int64(condition),
1910
975
dbus.String(command))
1911
976
else:
1912
977
# Emit D-Bus signal
1913
978
self.CheckerCompleted(dbus.Int16(-1),
1914
dbus.Int64(
1915
# This is specific to GNU libC
1916
(exitstatus << 8)
1917
| self.last_checker_signal),
979
dbus.Int64(condition),
1918
980
dbus.String(command))
1919
return ret
1920
981
982
return Client.checker_callback(self, pid, condition, command,
983
*args, **kwargs)
984
1921
985
def start_checker(self, *args, **kwargs):
1922
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
1923
991
r = Client.start_checker(self, *args, **kwargs)
1924
992
# Only if new checker process was started
1925
993
if (self.checker is not None
1927
995
# Emit D-Bus signal
1928
996
self.CheckerStarted(self.current_checker_command)
1929
997
return r
1930
998
1931
999
def _reset_approved(self):
1932
self.approved = None
1000
self._approved = None
1933
1001
return False
1934
1002
1935
1003
def approve(self, value=True):
1936
self.approved = value
1937
GLib.timeout_add(int(self.approval_duration.total_seconds()
1938
* 1000), self._reset_approved)
1939
1004
self.send_changedstate()
1940
1941
# D-Bus methods, signals & properties
1942
1943
# Interfaces
1944
1945
# Signals
1946
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
1947
1016
# CheckerCompleted - signal
1948
1017
@dbus.service.signal(_interface, signature="nxs")
1949
1018
def CheckerCompleted(self, exitcode, waitstatus, command):
1950
1019
"D-Bus signal"
1951
1020
pass
1952
1021
1953
1022
# CheckerStarted - signal
1954
1023
@dbus.service.signal(_interface, signature="s")
1955
1024
def CheckerStarted(self, command):
1956
1025
"D-Bus signal"
1957
1026
pass
1958
1027
1959
1028
# PropertyChanged - signal
1960
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1961
1029
@dbus.service.signal(_interface, signature="sv")
1962
1030
def PropertyChanged(self, property, value):
1963
1031
"D-Bus signal"
1964
1032
pass
1965
1033
1966
1034
# GotSecret - signal
1967
1035
@dbus.service.signal(_interface)
1968
1036
def GotSecret(self):
1971
1039
server to mandos-client
1972
1040
"""
1973
1041
pass
1974
1042
1975
1043
# Rejected - signal
1976
1044
@dbus.service.signal(_interface, signature="s")
1977
1045
def Rejected(self, reason):
1978
1046
"D-Bus signal"
1979
1047
pass
1980
1048
1981
1049
# NeedApproval - signal
1982
1050
@dbus.service.signal(_interface, signature="tb")
1983
1051
def NeedApproval(self, timeout, default):
1984
1052
"D-Bus signal"
1985
1053
return self.need_approval()
1986
1987
# Methods
1988
1054
1055
## Methods
1056
1989
1057
# Approve - method
1990
1058
@dbus.service.method(_interface, in_signature="b")
1991
1059
def Approve(self, value):
1992
1060
self.approve(value)
1993
1061
1994
1062
# CheckedOK - method
1995
1063
@dbus.service.method(_interface)
1996
1064
def CheckedOK(self):
1997
1065
self.checked_ok()
1998
1066
1999
1067
# Enable - method
2000
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2001
1068
@dbus.service.method(_interface)
2002
1069
def Enable(self):
2003
1070
"D-Bus method"
2004
1071
self.enable()
2005
1072
2006
1073
# StartChecker - method
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2008
1074
@dbus.service.method(_interface)
2009
1075
def StartChecker(self):
2010
1076
"D-Bus method"
2011
1077
self.start_checker()
2012
1078
2013
1079
# Disable - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2015
1080
@dbus.service.method(_interface)
2016
1081
def Disable(self):
2017
1082
"D-Bus method"
2018
1083
self.disable()
2019
1084
2020
1085
# StopChecker - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2022
1086
@dbus.service.method(_interface)
2023
1087
def StopChecker(self):
2024
1088
self.stop_checker()
2025
2026
# Properties
2027
1089
1090
## Properties
1091
2028
1092
# ApprovalPending - property
2029
1093
@dbus_service_property(_interface, signature="b", access="read")
2030
1094
def ApprovalPending_dbus_property(self):
2031
1095
return dbus.Boolean(bool(self.approvals_pending))
2032
1096
2033
1097
# ApprovedByDefault - property
2034
@dbus_service_property(_interface,
2035
signature="b",
1098
@dbus_service_property(_interface, signature="b",
2036
1099
access="readwrite")
2037
1100
def ApprovedByDefault_dbus_property(self, value=None):
2038
1101
if value is None: # get
2039
1102
return dbus.Boolean(self.approved_by_default)
2040
1103
self.approved_by_default = bool(value)
2041
1104
2042
1105
# ApprovalDelay - property
2043
@dbus_service_property(_interface,
2044
signature="t",
1106
@dbus_service_property(_interface, signature="t",
2045
1107
access="readwrite")
2046
1108
def ApprovalDelay_dbus_property(self, value=None):
2047
1109
if value is None: # get
2048
return dbus.UInt64(self.approval_delay.total_seconds()
2049
* 1000)
1110
return dbus.UInt64(self.approval_delay_milliseconds())
2050
1111
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2051
1112
2052
1113
# ApprovalDuration - property
2053
@dbus_service_property(_interface,
2054
signature="t",
1114
@dbus_service_property(_interface, signature="t",
2055
1115
access="readwrite")
2056
1116
def ApprovalDuration_dbus_property(self, value=None):
2057
1117
if value is None: # get
2058
return dbus.UInt64(self.approval_duration.total_seconds()
2059
* 1000)
1118
return dbus.UInt64(_timedelta_to_milliseconds(
1119
self.approval_duration))
2060
1120
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2061
1121
2062
1122
# Name - property
2063
@dbus_annotations(
2064
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2065
1123
@dbus_service_property(_interface, signature="s", access="read")
2066
1124
def Name_dbus_property(self):
2067
1125
return dbus.String(self.name)
2068
2069
# KeyID - property
2070
@dbus_annotations(
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2072
@dbus_service_property(_interface, signature="s", access="read")
2073
def KeyID_dbus_property(self):
2074
return dbus.String(self.key_id)
2075
1126
2076
1127
# Fingerprint - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
1128
@dbus_service_property(_interface, signature="s", access="read")
2080
1129
def Fingerprint_dbus_property(self):
2081
1130
return dbus.String(self.fingerprint)
2082
1131
2083
1132
# Host - property
2084
@dbus_service_property(_interface,
2085
signature="s",
1133
@dbus_service_property(_interface, signature="s",
2086
1134
access="readwrite")
2087
1135
def Host_dbus_property(self, value=None):
2088
1136
if value is None: # get
2089
1137
return dbus.String(self.host)
2090
self.host = str(value)
2091
1138
self.host = value
1139
2092
1140
# Created - property
2093
@dbus_annotations(
2094
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2095
1141
@dbus_service_property(_interface, signature="s", access="read")
2096
1142
def Created_dbus_property(self):
2097
return datetime_to_dbus(self.created)
2098
1143
return dbus.String(datetime_to_dbus(self.created))
1144
2099
1145
# LastEnabled - property
2100
1146
@dbus_service_property(_interface, signature="s", access="read")
2101
1147
def LastEnabled_dbus_property(self):
2102
1148
return datetime_to_dbus(self.last_enabled)
2103
1149
2104
1150
# Enabled - property
2105
@dbus_service_property(_interface,
2106
signature="b",
1151
@dbus_service_property(_interface, signature="b",
2107
1152
access="readwrite")
2108
1153
def Enabled_dbus_property(self, value=None):
2109
1154
if value is None: # get
2112
1157
self.enable()
2113
1158
else:
2114
1159
self.disable()
2115
1160
2116
1161
# LastCheckedOK - property
2117
@dbus_service_property(_interface,
2118
signature="s",
1162
@dbus_service_property(_interface, signature="s",
2119
1163
access="readwrite")
2120
1164
def LastCheckedOK_dbus_property(self, value=None):
2121
1165
if value is not None:
2122
1166
self.checked_ok()
2123
1167
return
2124
1168
return datetime_to_dbus(self.last_checked_ok)
2125
2126
# LastCheckerStatus - property
2127
@dbus_service_property(_interface, signature="n", access="read")
2128
def LastCheckerStatus_dbus_property(self):
2129
return dbus.Int16(self.last_checker_status)
2130
1169
2131
1170
# Expires - property
2132
1171
@dbus_service_property(_interface, signature="s", access="read")
2133
1172
def Expires_dbus_property(self):
2134
1173
return datetime_to_dbus(self.expires)
2135
1174
2136
1175
# LastApprovalRequest - property
2137
1176
@dbus_service_property(_interface, signature="s", access="read")
2138
1177
def LastApprovalRequest_dbus_property(self):
2139
1178
return datetime_to_dbus(self.last_approval_request)
2140
1179
2141
1180
# Timeout - property
2142
@dbus_service_property(_interface,
2143
signature="t",
1181
@dbus_service_property(_interface, signature="t",
2144
1182
access="readwrite")
2145
1183
def Timeout_dbus_property(self, value=None):
2146
1184
if value is None: # get
2147
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2148
old_timeout = self.timeout
1185
return dbus.UInt64(self.timeout_milliseconds())
2149
1186
self.timeout = datetime.timedelta(0, 0, 0, value)
2150
# Reschedule disabling
2151
if self.enabled:
2152
now = datetime.datetime.utcnow()
2153
self.expires += self.timeout - old_timeout
2154
if self.expires <= now:
2155
# The timeout has passed
2156
self.disable()
2157
else:
2158
if (getattr(self, "disable_initiator_tag", None)
2159
is None):
2160
return
2161
GLib.source_remove(self.disable_initiator_tag)
2162
self.disable_initiator_tag = GLib.timeout_add(
2163
int((self.expires - now).total_seconds() * 1000),
2164
self.disable)
2165
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
2166
1208
# ExtendedTimeout - property
2167
@dbus_service_property(_interface,
2168
signature="t",
1209
@dbus_service_property(_interface, signature="t",
2169
1210
access="readwrite")
2170
1211
def ExtendedTimeout_dbus_property(self, value=None):
2171
1212
if value is None: # get
2172
return dbus.UInt64(self.extended_timeout.total_seconds()
2173
* 1000)
1213
return dbus.UInt64(self.extended_timeout_milliseconds())
2174
1214
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2175
1215
2176
1216
# Interval - property
2177
@dbus_service_property(_interface,
2178
signature="t",
1217
@dbus_service_property(_interface, signature="t",
2179
1218
access="readwrite")
2180
1219
def Interval_dbus_property(self, value=None):
2181
1220
if value is None: # get
2182
return dbus.UInt64(self.interval.total_seconds() * 1000)
1221
return dbus.UInt64(self.interval_milliseconds())
2183
1222
self.interval = datetime.timedelta(0, 0, 0, value)
2184
1223
if getattr(self, "checker_initiator_tag", None) is None:
2185
1224
return
2186
if self.enabled:
2187
# Reschedule checker run
2188
GLib.source_remove(self.checker_initiator_tag)
2189
self.checker_initiator_tag = GLib.timeout_add(
2190
value, self.start_checker)
2191
self.start_checker() # Start one now, too
2192
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
2193
1231
# Checker - property
2194
@dbus_service_property(_interface,
2195
signature="s",
1232
@dbus_service_property(_interface, signature="s",
2196
1233
access="readwrite")
2197
1234
def Checker_dbus_property(self, value=None):
2198
1235
if value is None: # get
2199
1236
return dbus.String(self.checker_command)
2200
self.checker_command = str(value)
2201
1237
self.checker_command = value
1238
2202
1239
# CheckerRunning - property
2203
@dbus_service_property(_interface,
2204
signature="b",
1240
@dbus_service_property(_interface, signature="b",
2205
1241
access="readwrite")
2206
1242
def CheckerRunning_dbus_property(self, value=None):
2207
1243
if value is None: # get
2210
1246
self.start_checker()
2211
1247
else:
2212
1248
self.stop_checker()
2213
1249
2214
1250
# ObjectPath - property
2215
@dbus_annotations(
2216
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2217
"org.freedesktop.DBus.Deprecated": "true"})
2218
1251
@dbus_service_property(_interface, signature="o", access="read")
2219
1252
def ObjectPath_dbus_property(self):
2220
return self.dbus_object_path # is already a dbus.ObjectPath
2221
1253
return self.dbus_object_path # is already a dbus.ObjectPath
1254
2222
1255
# Secret = property
2223
@dbus_annotations(
2224
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2225
"invalidates"})
2226
@dbus_service_property(_interface,
2227
signature="ay",
2228
access="write",
2229
byte_arrays=True)
1256
@dbus_service_property(_interface, signature="ay",
1257
access="write", byte_arrays=True)
2230
1258
def Secret_dbus_property(self, value):
2231
self.secret = bytes(value)
2232
1259
self.secret = str(value)
1260
2233
1261
del _interface
2234
1262
2235
1263
2236
class ProxyClient:
2237
def __init__(self, child_pipe, key_id, fpr, address):
1264
class ProxyClient(object):
1265
def __init__(self, child_pipe, fpr, address):
2238
1266
self._pipe = child_pipe
2239
self._pipe.send(('init', key_id, fpr, address))
1267
self._pipe.send(('init', fpr, address))
2240
1268
if not self._pipe.recv():
2241
raise KeyError(key_id or fpr)
2242
1269
raise KeyError()
1270
2243
1271
def __getattribute__(self, name):
2244
if name == '_pipe':
1272
if(name == '_pipe'):
2245
1273
return super(ProxyClient, self).__getattribute__(name)
2246
1274
self._pipe.send(('getattr', name))
2247
1275
data = self._pipe.recv()
2248
1276
if data[0] == 'data':
2249
1277
return data[1]
2250
1278
if data[0] == 'function':
2251
2252
1279
def func(*args, **kwargs):
2253
1280
self._pipe.send(('funcall', name, args, kwargs))
2254
1281
return self._pipe.recv()[1]
2255
2256
1282
return func
2257
1283
2258
1284
def __setattr__(self, name, value):
2259
if name == '_pipe':
1285
if(name == '_pipe'):
2260
1286
return super(ProxyClient, self).__setattr__(name, value)
2261
1287
self._pipe.send(('setattr', name, value))
2262
1288
1289
class ClientDBusTransitional(ClientDBus):
1290
__metaclass__ = AlternateDBusNamesMetaclass
2263
1291
2264
1292
class ClientHandler(socketserver.BaseRequestHandler, object):
2265
1293
"""A class to handle client connections.
2266
1294
2267
1295
Instantiated once for each connection to handle it.
2268
1296
Note: This will run in its own forked process."""
2269
1297
2270
1298
def handle(self):
2271
1299
with contextlib.closing(self.server.child_pipe) as child_pipe:
2272
1300
logger.info("TCP connection from: %s",
2273
str(self.client_address))
1301
unicode(self.client_address))
2274
1302
logger.debug("Pipe FD: %d",
2275
1303
self.server.child_pipe.fileno())
2276
2277
session = gnutls.ClientSession(self.request)
2278
2279
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2280
# "+AES-256-CBC", "+SHA1",
2281
# "+COMP-NULL", "+CTYPE-OPENPGP",
2282
# "+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"))
2283
1319
# Use a fallback default, since this MUST be set.
2284
1320
priority = self.server.gnutls_priority
2285
1321
if priority is None:
2286
1322
priority = "NORMAL"
2287
gnutls.priority_set_direct(session._c_object,
2288
priority.encode("utf-8"),
2289
None)
2290
1323
(gnutls.library.functions
1324
.gnutls_priority_set_direct(session._c_object,
1325
priority, None))
1326
2291
1327
# Start communication using the Mandos protocol
2292
1328
# Get protocol number
2293
1329
line = self.request.makefile().readline()
2294
1330
logger.debug("Protocol version: %r", line)
2295
1331
try:
2296
1332
if int(line.strip().split()[0]) > 1:
2297
raise RuntimeError(line)
1333
raise RuntimeError
2298
1334
except (ValueError, IndexError, RuntimeError) as error:
2299
1335
logger.error("Unknown protocol version: %s", error)
2300
1336
return
2301
1337
2302
1338
# Start GnuTLS connection
2303
1339
try:
2304
1340
session.handshake()
2305
except gnutls.Error as error:
1341
except gnutls.errors.GNUTLSError as error:
2306
1342
logger.warning("Handshake failed: %s", error)
2307
1343
# Do not run session.bye() here: the session is not
2308
1344
# established. Just abandon the request.
2309
1345
return
2310
1346
logger.debug("Handshake succeeded")
2311
1347
2312
1348
approval_required = False
2313
1349
try:
2314
if gnutls.has_rawpk:
2315
fpr = b""
2316
try:
2317
key_id = self.key_id(
2318
self.peer_certificate(session))
2319
except (TypeError, gnutls.Error) as error:
2320
logger.warning("Bad certificate: %s", error)
2321
return
2322
logger.debug("Key ID: %s", key_id)
2323
2324
else:
2325
key_id = b""
2326
try:
2327
fpr = self.fingerprint(
2328
self.peer_certificate(session))
2329
except (TypeError, gnutls.Error) as error:
2330
logger.warning("Bad certificate: %s", error)
2331
return
2332
logger.debug("Fingerprint: %s", fpr)
2333
2334
try:
2335
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,
2336
1361
self.client_address)
2337
1362
except KeyError:
2338
1363
return
2339
1364
2340
1365
if client.approval_delay:
2341
1366
delay = client.approval_delay
2342
1367
client.approvals_pending += 1
2343
1368
approval_required = True
2344
1369
2345
1370
while True:
2346
1371
if not client.enabled:
2347
1372
logger.info("Client %s is disabled",
2348
client.name)
1373
client.name)
2349
1374
if self.server.use_dbus:
2350
1375
# Emit D-Bus signal
2351
1376
client.Rejected("Disabled")
2352
1377
return
2353
2354
if client.approved or not client.approval_delay:
2355
# 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
2356
1381
break
2357
elif client.approved is None:
1382
elif client._approved is None:
2358
1383
logger.info("Client %s needs approval",
2359
1384
client.name)
2360
1385
if self.server.use_dbus:
2361
1386
# Emit D-Bus signal
2362
1387
client.NeedApproval(
2363
client.approval_delay.total_seconds()
2364
* 1000, client.approved_by_default)
1388
client.approval_delay_milliseconds(),
1389
client.approved_by_default)
2365
1390
else:
2366
1391
logger.warning("Client %s was not approved",
2367
1392
client.name)
2369
1394
# Emit D-Bus signal
2370
1395
client.Rejected("Denied")
2371
1396
return
2372
2373
# wait until timeout or approved
1397
1398
#wait until timeout or approved
2374
1399
time = datetime.datetime.now()
2375
1400
client.changedstate.acquire()
2376
client.changedstate.wait(delay.total_seconds())
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1403
/ 1000)))
2377
1404
client.changedstate.release()
2378
1405
time2 = datetime.datetime.now()
2379
1406
if (time2 - time) >= delay:
2389
1416
break
2390
1417
else:
2391
1418
delay -= time2 - time
2392
2393
try:
2394
session.send(client.secret)
2395
except gnutls.Error as error:
2396
logger.warning("gnutls send failed",
2397
exc_info=error)
2398
return
2399
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
2400
1432
logger.info("Sending secret to %s", client.name)
2401
1433
# bump the timeout using extended_timeout
2402
client.bump_timeout(client.extended_timeout)
1434
client.checked_ok(client.extended_timeout)
2403
1435
if self.server.use_dbus:
2404
1436
# Emit D-Bus signal
2405
1437
client.GotSecret()
2406
1438
2407
1439
finally:
2408
1440
if approval_required:
2409
1441
client.approvals_pending -= 1
2410
1442
try:
2411
1443
session.bye()
2412
except gnutls.Error as error:
2413
logger.warning("GnuTLS bye failed",
2414
exc_info=error)
2415
1444
except gnutls.errors.GNUTLSError as error:
1445
logger.warning("GnuTLS bye failed")
1446
2416
1447
@staticmethod
2417
1448
def peer_certificate(session):
2418
"Return the peer's certificate as a bytestring"
2419
try:
2420
cert_type = gnutls.certificate_type_get2(session._c_object,
2421
gnutls.CTYPE_PEERS)
2422
except AttributeError:
2423
cert_type = gnutls.certificate_type_get(session._c_object)
2424
if gnutls.has_rawpk:
2425
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2426
else:
2427
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2428
# If not a valid certificate type...
2429
if cert_type not in valid_cert_types:
2430
logger.info("Cert type %r not in %r", cert_type,
2431
valid_cert_types)
2432
# ...return invalid data
2433
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
2434
1456
list_size = ctypes.c_uint(1)
2435
cert_list = (gnutls.certificate_get_peers
1457
cert_list = (gnutls.library.functions
1458
.gnutls_certificate_get_peers
2436
1459
(session._c_object, ctypes.byref(list_size)))
2437
1460
if not bool(cert_list) and list_size.value != 0:
2438
raise gnutls.Error("error getting peer certificate")
1461
raise gnutls.errors.GNUTLSError("error getting peer"
1462
" certificate")
2439
1463
if list_size.value == 0:
2440
1464
return None
2441
1465
cert = cert_list[0]
2442
1466
return ctypes.string_at(cert.data, cert.size)
2443
2444
@staticmethod
2445
def key_id(certificate):
2446
"Convert a certificate bytestring to a hexdigit key ID"
2447
# New GnuTLS "datum" with the public key
2448
datum = gnutls.datum_t(
2449
ctypes.cast(ctypes.c_char_p(certificate),
2450
ctypes.POINTER(ctypes.c_ubyte)),
2451
ctypes.c_uint(len(certificate)))
2452
# XXX all these need to be created in the gnutls "module"
2453
# New empty GnuTLS certificate
2454
pubkey = gnutls.pubkey_t()
2455
gnutls.pubkey_init(ctypes.byref(pubkey))
2456
# Import the raw public key into the certificate
2457
gnutls.pubkey_import(pubkey,
2458
ctypes.byref(datum),
2459
gnutls.X509_FMT_DER)
2460
# New buffer for the key ID
2461
buf = ctypes.create_string_buffer(32)
2462
buf_len = ctypes.c_size_t(len(buf))
2463
# Get the key ID from the raw public key into the buffer
2464
gnutls.pubkey_get_key_id(pubkey,
2465
gnutls.KEYID_USE_SHA256,
2466
ctypes.cast(ctypes.byref(buf),
2467
ctypes.POINTER(ctypes.c_ubyte)),
2468
ctypes.byref(buf_len))
2469
# Deinit the certificate
2470
gnutls.pubkey_deinit(pubkey)
2471
2472
# Convert the buffer to a Python bytestring
2473
key_id = ctypes.string_at(buf, buf_len.value)
2474
# Convert the bytestring to hexadecimal notation
2475
hex_key_id = binascii.hexlify(key_id).upper()
2476
return hex_key_id
2477
1467
2478
1468
@staticmethod
2479
1469
def fingerprint(openpgp):
2480
1470
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2481
1471
# New GnuTLS "datum" with the OpenPGP public key
2482
datum = gnutls.datum_t(
2483
ctypes.cast(ctypes.c_char_p(openpgp),
2484
ctypes.POINTER(ctypes.c_ubyte)),
2485
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))))
2486
1477
# New empty GnuTLS certificate
2487
crt = gnutls.openpgp_crt_t()
2488
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)))
2489
1481
# Import the OpenPGP public key into the certificate
2490
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2491
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))
2492
1486
# Verify the self signature in the key
2493
1487
crtverify = ctypes.c_uint()
2494
gnutls.openpgp_crt_verify_self(crt, 0,
2495
ctypes.byref(crtverify))
1488
(gnutls.library.functions
1489
.gnutls_openpgp_crt_verify_self(crt, 0,
1490
ctypes.byref(crtverify)))
2496
1491
if crtverify.value != 0:
2497
gnutls.openpgp_crt_deinit(crt)
2498
raise gnutls.CertificateSecurityError(code
2499
=crtverify.value)
1492
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1493
raise (gnutls.errors.CertificateSecurityError
1494
("Verify failed"))
2500
1495
# New buffer for the fingerprint
2501
1496
buf = ctypes.create_string_buffer(20)
2502
1497
buf_len = ctypes.c_size_t()
2503
1498
# Get the fingerprint from the certificate into the buffer
2504
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2505
ctypes.byref(buf_len))
1499
(gnutls.library.functions
1500
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1501
ctypes.byref(buf_len)))
2506
1502
# Deinit the certificate
2507
gnutls.openpgp_crt_deinit(crt)
1503
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2508
1504
# Convert the buffer to a Python bytestring
2509
1505
fpr = ctypes.string_at(buf, buf_len.value)
2510
1506
# Convert the bytestring to hexadecimal notation
2511
hex_fpr = binascii.hexlify(fpr).upper()
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2512
1508
return hex_fpr
2513
1509
2514
1510
2515
class MultiprocessingMixIn:
1511
class MultiprocessingMixIn(object):
2516
1512
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2517
2518
1513
def sub_process_main(self, request, address):
2519
1514
try:
2520
1515
self.finish_request(request, address)
2521
except Exception:
1516
except:
2522
1517
self.handle_error(request, address)
2523
1518
self.close_request(request)
2524
1519
2525
1520
def process_request(self, request, address):
2526
1521
"""Start a new process to process the request."""
2527
proc = multiprocessing.Process(target=self.sub_process_main,
2528
args=(request, address))
1522
proc = multiprocessing.Process(target = self.sub_process_main,
1523
args = (request,
1524
address))
2529
1525
proc.start()
2530
1526
return proc
2531
1527
2532
1528
2533
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1529
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2534
1530
""" adds a pipe to the MixIn """
2535
2536
1531
def process_request(self, request, client_address):
2537
1532
"""Overrides and wraps the original process_request().
2538
1533
2539
1534
This function creates a new pipe in self.pipe
2540
1535
"""
2541
1536
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2542
1537
2543
1538
proc = MultiprocessingMixIn.process_request(self, request,
2544
1539
client_address)
2545
1540
self.child_pipe.close()
2546
1541
self.add_pipe(parent_pipe, proc)
2547
1542
2548
1543
def add_pipe(self, parent_pipe, proc):
2549
1544
"""Dummy function; override as necessary"""
2550
raise NotImplementedError()
1545
raise NotImplementedError
2551
1546
2552
1547
2553
1548
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2554
socketserver.TCPServer):
1549
socketserver.TCPServer, object):
2555
1550
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2556
1551
2557
1552
Attributes:
2558
1553
enabled: Boolean; whether this server is activated yet
2559
1554
interface: None or a network interface name (string)
2560
1555
use_ipv6: Boolean; to use IPv6 or not
2561
1556
"""
2562
2563
1557
def __init__(self, server_address, RequestHandlerClass,
2564
interface=None,
2565
use_ipv6=True,
2566
socketfd=None):
2567
"""If socketfd is set, use that file descriptor instead of
2568
creating a new one with socket.socket().
2569
"""
1558
interface=None, use_ipv6=True):
2570
1559
self.interface = interface
2571
1560
if use_ipv6:
2572
1561
self.address_family = socket.AF_INET6
2573
if socketfd is not None:
2574
# Save the file descriptor
2575
self.socketfd = socketfd
2576
# Save the original socket.socket() function
2577
self.socket_socket = socket.socket
2578
2579
# To implement --socket, we monkey patch socket.socket.
2580
#
2581
# (When socketserver.TCPServer is a new-style class, we
2582
# could make self.socket into a property instead of monkey
2583
# patching socket.socket.)
2584
#
2585
# Create a one-time-only replacement for socket.socket()
2586
@functools.wraps(socket.socket)
2587
def socket_wrapper(*args, **kwargs):
2588
# Restore original function so subsequent calls are
2589
# not affected.
2590
socket.socket = self.socket_socket
2591
del self.socket_socket
2592
# This time only, return a new socket object from the
2593
# saved file descriptor.
2594
return socket.fromfd(self.socketfd, *args, **kwargs)
2595
# Replace socket.socket() function with wrapper
2596
socket.socket = socket_wrapper
2597
# The socketserver.TCPServer.__init__ will call
2598
# socket.socket(), which might be our replacement,
2599
# socket_wrapper(), if socketfd was set.
2600
1562
socketserver.TCPServer.__init__(self, server_address,
2601
1563
RequestHandlerClass)
2602
2603
1564
def server_bind(self):
2604
1565
"""This overrides the normal server_bind() function
2605
1566
to bind to an interface if one was specified, and also NOT to
2606
1567
bind to an address or port if they were not specified."""
2607
global SO_BINDTODEVICE
2608
1568
if self.interface is not None:
2609
1569
if SO_BINDTODEVICE is None:
2610
# Fall back to a hard-coded value which seems to be
2611
# common enough.
2612
logger.warning("SO_BINDTODEVICE not found, trying 25")
2613
SO_BINDTODEVICE = 25
2614
try:
2615
self.socket.setsockopt(
2616
socket.SOL_SOCKET, SO_BINDTODEVICE,
2617
(self.interface + "\0").encode("utf-8"))
2618
except socket.error as error:
2619
if error.errno == errno.EPERM:
2620
logger.error("No permission to bind to"
2621
" interface %s", self.interface)
2622
elif error.errno == errno.ENOPROTOOPT:
2623
logger.error("SO_BINDTODEVICE not available;"
2624
" cannot bind to interface %s",
2625
self.interface)
2626
elif error.errno == errno.ENODEV:
2627
logger.error("Interface %s does not exist,"
2628
" cannot bind", self.interface)
2629
else:
2630
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
2631
1590
# Only bind(2) the socket if we really need to.
2632
1591
if self.server_address[0] or self.server_address[1]:
2633
if self.server_address[1]:
2634
self.allow_reuse_address = True
2635
1592
if not self.server_address[0]:
2636
1593
if self.address_family == socket.AF_INET6:
2637
any_address = "::" # in6addr_any
1594
any_address = "::" # in6addr_any
2638
1595
else:
2639
any_address = "0.0.0.0" # INADDR_ANY
1596
any_address = socket.INADDR_ANY
2640
1597
self.server_address = (any_address,
2641
1598
self.server_address[1])
2642
1599
elif not self.server_address[1]:
2643
self.server_address = (self.server_address[0], 0)
1600
self.server_address = (self.server_address[0],
1601
0)
2644
1602
# if self.interface:
2645
1603
# self.server_address = (self.server_address[0],
2646
1604
# 0, # port
2652
1610
2653
1611
class MandosServer(IPv6_TCPServer):
2654
1612
"""Mandos server.
2655
1613
2656
1614
Attributes:
2657
1615
clients: set of Client objects
2658
1616
gnutls_priority GnuTLS priority string
2659
1617
use_dbus: Boolean; to emit D-Bus signals or not
2660
2661
Assumes a GLib.MainLoop event loop.
1618
1619
Assumes a gobject.MainLoop event loop.
2662
1620
"""
2663
2664
1621
def __init__(self, server_address, RequestHandlerClass,
2665
interface=None,
2666
use_ipv6=True,
2667
clients=None,
2668
gnutls_priority=None,
2669
use_dbus=True,
2670
socketfd=None):
1622
interface=None, use_ipv6=True, clients=None,
1623
gnutls_priority=None, use_dbus=True):
2671
1624
self.enabled = False
2672
1625
self.clients = clients
2673
1626
if self.clients is None:
2674
self.clients = {}
1627
self.clients = set()
2675
1628
self.use_dbus = use_dbus
2676
1629
self.gnutls_priority = gnutls_priority
2677
1630
IPv6_TCPServer.__init__(self, server_address,
2678
1631
RequestHandlerClass,
2679
interface=interface,
2680
use_ipv6=use_ipv6,
2681
socketfd=socketfd)
2682
1632
interface = interface,
1633
use_ipv6 = use_ipv6)
2683
1634
def server_activate(self):
2684
1635
if self.enabled:
2685
1636
return socketserver.TCPServer.server_activate(self)
2686
1637
2687
1638
def enable(self):
2688
1639
self.enabled = True
2689
1640
2690
1641
def add_pipe(self, parent_pipe, proc):
2691
1642
# Call "handle_ipc" for both data and EOF events
2692
GLib.io_add_watch(
2693
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2694
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2695
functools.partial(self.handle_ipc,
2696
parent_pipe=parent_pipe,
2697
proc=proc))
2698
2699
def handle_ipc(self, source, condition,
2700
parent_pipe=None,
2701
proc=None,
2702
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)
2703
1666
# error, or the other end of multiprocessing.Pipe has closed
2704
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1667
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2705
1668
# Wait for other process to exit
2706
1669
proc.join()
2707
1670
return False
2708
1671
2709
1672
# Read a request from the child
2710
1673
request = parent_pipe.recv()
2711
1674
command = request[0]
2712
1675
2713
1676
if command == 'init':
2714
key_id = request[1].decode("ascii")
2715
fpr = request[2].decode("ascii")
2716
address = request[3]
2717
2718
for c in self.clients.values():
2719
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2720
continue
2721
if key_id and c.key_id == key_id:
2722
client = c
2723
break
2724
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:
2725
1682
client = c
2726
1683
break
2727
1684
else:
2728
logger.info("Client not found for key ID: %s, address"
2729
": %s", key_id or fpr, address)
1685
logger.info("Client not found for fingerprint: %s, ad"
1686
"dress: %s", fpr, address)
2730
1687
if self.use_dbus:
2731
1688
# Emit D-Bus signal
2732
mandos_dbus_service.ClientNotFound(key_id or fpr,
1689
mandos_dbus_service.ClientNotFound(fpr,
2733
1690
address[0])
2734
1691
parent_pipe.send(False)
2735
1692
return False
2736
2737
GLib.io_add_watch(
2738
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2739
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2740
functools.partial(self.handle_ipc,
2741
parent_pipe=parent_pipe,
2742
proc=proc,
2743
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))
2744
1702
parent_pipe.send(True)
2745
1703
# remove the old hook in favor of the new above hook on
2746
1704
# same fileno
2749
1707
funcname = request[1]
2750
1708
args = request[2]
2751
1709
kwargs = request[3]
2752
1710
2753
1711
parent_pipe.send(('data', getattr(client_object,
2754
1712
funcname)(*args,
2755
**kwargs)))
2756
1713
**kwargs)))
1714
2757
1715
if command == 'getattr':
2758
1716
attrname = request[1]
2759
if isinstance(client_object.__getattribute__(attrname),
2760
collections.abc.Callable):
2761
parent_pipe.send(('function', ))
1717
if callable(client_object.__getattribute__(attrname)):
1718
parent_pipe.send(('function',))
2762
1719
else:
2763
parent_pipe.send((
2764
'data', client_object.__getattribute__(attrname)))
2765
1720
parent_pipe.send(('data', client_object
1721
.__getattribute__(attrname)))
1722
2766
1723
if command == 'setattr':
2767
1724
attrname = request[1]
2768
1725
value = request[2]
2769
1726
setattr(client_object, attrname, value)
2770
1727
2771
1728
return True
2772
1729
2773
1730
2774
def rfc3339_duration_to_delta(duration):
2775
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2776
2777
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2778
True
2779
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2780
True
2781
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2782
True
2783
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2784
True
2785
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2786
True
2787
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2788
True
2789
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2790
True
2791
"""
2792
2793
# Parsing an RFC 3339 duration with regular expressions is not
2794
# possible - there would have to be multiple places for the same
2795
# values, like seconds. The current code, while more esoteric, is
2796
# cleaner without depending on a parsing library. If Python had a
2797
# built-in library for parsing we would use it, but we'd like to
2798
# avoid excessive use of external libraries.
2799
2800
# New type for defining tokens, syntax, and semantics all-in-one
2801
Token = collections.namedtuple("Token", (
2802
"regexp", # To match token; if "value" is not None, must have
2803
# a "group" containing digits
2804
"value", # datetime.timedelta or None
2805
"followers")) # Tokens valid after this token
2806
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2807
# the "duration" ABNF definition in RFC 3339, Appendix A.
2808
token_end = Token(re.compile(r"$"), None, frozenset())
2809
token_second = Token(re.compile(r"(\d+)S"),
2810
datetime.timedelta(seconds=1),
2811
frozenset((token_end, )))
2812
token_minute = Token(re.compile(r"(\d+)M"),
2813
datetime.timedelta(minutes=1),
2814
frozenset((token_second, token_end)))
2815
token_hour = Token(re.compile(r"(\d+)H"),
2816
datetime.timedelta(hours=1),
2817
frozenset((token_minute, token_end)))
2818
token_time = Token(re.compile(r"T"),
2819
None,
2820
frozenset((token_hour, token_minute,
2821
token_second)))
2822
token_day = Token(re.compile(r"(\d+)D"),
2823
datetime.timedelta(days=1),
2824
frozenset((token_time, token_end)))
2825
token_month = Token(re.compile(r"(\d+)M"),
2826
datetime.timedelta(weeks=4),
2827
frozenset((token_day, token_end)))
2828
token_year = Token(re.compile(r"(\d+)Y"),
2829
datetime.timedelta(weeks=52),
2830
frozenset((token_month, token_end)))
2831
token_week = Token(re.compile(r"(\d+)W"),
2832
datetime.timedelta(weeks=1),
2833
frozenset((token_end, )))
2834
token_duration = Token(re.compile(r"P"), None,
2835
frozenset((token_year, token_month,
2836
token_day, token_time,
2837
token_week)))
2838
# Define starting values:
2839
# Value so far
2840
value = datetime.timedelta()
2841
found_token = None
2842
# Following valid tokens
2843
followers = frozenset((token_duration, ))
2844
# String left to parse
2845
s = duration
2846
# Loop until end token is found
2847
while found_token is not token_end:
2848
# Search for any currently valid tokens
2849
for token in followers:
2850
match = token.regexp.match(s)
2851
if match is not None:
2852
# Token found
2853
if token.value is not None:
2854
# Value found, parse digits
2855
factor = int(match.group(1), 10)
2856
# Add to value so far
2857
value += factor * token.value
2858
# Strip token from string
2859
s = token.regexp.sub("", s, 1)
2860
# Go to found token
2861
found_token = token
2862
# Set valid next tokens
2863
followers = found_token.followers
2864
break
2865
else:
2866
# No currently valid tokens were found
2867
raise ValueError("Invalid RFC 3339 duration: {!r}"
2868
.format(duration))
2869
# End token found
2870
return value
2871
2872
2873
1731
def string_to_delta(interval):
2874
1732
"""Parse a string and return a datetime.timedelta
2875
2876
>>> string_to_delta('7d') == datetime.timedelta(7)
2877
True
2878
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2879
True
2880
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2881
True
2882
>>> string_to_delta('24h') == datetime.timedelta(1)
2883
True
2884
>>> string_to_delta('1w') == datetime.timedelta(7)
2885
True
2886
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2887
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)
2888
1746
"""
2889
2890
try:
2891
return rfc3339_duration_to_delta(interval)
2892
except ValueError:
2893
pass
2894
2895
1747
timevalue = datetime.timedelta(0)
2896
1748
for s in interval.split():
2897
1749
try:
2898
suffix = s[-1]
1750
suffix = unicode(s[-1])
2899
1751
value = int(s[:-1])
2900
1752
if suffix == "d":
2901
1753
delta = datetime.timedelta(value)
2908
1760
elif suffix == "w":
2909
1761
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2910
1762
else:
2911
raise ValueError("Unknown suffix {!r}".format(suffix))
2912
except IndexError as e:
1763
raise ValueError("Unknown suffix %r" % suffix)
1764
except (ValueError, IndexError) as e:
2913
1765
raise ValueError(*(e.args))
2914
1766
timevalue += delta
2915
1767
return timevalue
2916
1768
2917
1769
2918
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):
2919
1795
"""See daemon(3). Standard BSD Unix function.
2920
1796
2921
1797
This should really exist as os.daemon, but it doesn't (yet)."""
2922
1798
if os.fork():
2923
1799
sys.exit()
2928
1804
sys.exit()
2929
1805
if not noclose:
2930
1806
# Close all standard open file descriptors
2931
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1807
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2932
1808
if not stat.S_ISCHR(os.fstat(null).st_mode):
2933
1809
raise OSError(errno.ENODEV,
2934
"{} not a character device"
2935
.format(os.devnull))
1810
"%s not a character device"
1811
% os.path.devnull)
2936
1812
os.dup2(null, sys.stdin.fileno())
2937
1813
os.dup2(null, sys.stdout.fileno())
2938
1814
os.dup2(null, sys.stderr.fileno())
2941
1817
2942
1818
2943
1819
def main():
2944
1820
2945
1821
##################################################################
2946
1822
# Parsing of options, both command line and config file
2947
1823
2948
1824
parser = argparse.ArgumentParser()
2949
1825
parser.add_argument("-v", "--version", action="version",
2950
version="%(prog)s {}".format(version),
1826
version = "%%(prog)s %s" % version,
2951
1827
help="show version number and exit")
2952
1828
parser.add_argument("-i", "--interface", metavar="IF",
2953
1829
help="Bind to interface IF")
2959
1835
help="Run self-test")
2960
1836
parser.add_argument("--debug", action="store_true",
2961
1837
help="Debug mode; run in foreground and log"
2962
" to terminal", default=None)
1838
" to terminal")
2963
1839
parser.add_argument("--debuglevel", metavar="LEVEL",
2964
1840
help="Debug level for stdout output")
2965
1841
parser.add_argument("--priority", help="GnuTLS"
2972
1848
" files")
2973
1849
parser.add_argument("--no-dbus", action="store_false",
2974
1850
dest="use_dbus", help="Do not provide D-Bus"
2975
" system bus interface", default=None)
1851
" system bus interface")
2976
1852
parser.add_argument("--no-ipv6", action="store_false",
2977
dest="use_ipv6", help="Do not use IPv6",
2978
default=None)
2979
parser.add_argument("--no-restore", action="store_false",
2980
dest="restore", help="Do not restore stored"
2981
" state", default=None)
2982
parser.add_argument("--socket", type=int,
2983
help="Specify a file descriptor to a network"
2984
" socket to use instead of creating one")
2985
parser.add_argument("--statedir", metavar="DIR",
2986
help="Directory to save/restore state in")
2987
parser.add_argument("--foreground", action="store_true",
2988
help="Run in foreground", default=None)
2989
parser.add_argument("--no-zeroconf", action="store_false",
2990
dest="zeroconf", help="Do not use Zeroconf",
2991
default=None)
2992
1853
dest="use_ipv6", help="Do not use IPv6")
2993
1854
options = parser.parse_args()
2994
1855
1856
if options.check:
1857
import doctest
1858
doctest.testmod()
1859
sys.exit()
1860
2995
1861
# Default values for config file for server-global settings
2996
if gnutls.has_rawpk:
2997
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2998
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2999
else:
3000
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3001
":+SIGN-DSA-SHA256")
3002
server_defaults = {"interface": "",
3003
"address": "",
3004
"port": "",
3005
"debug": "False",
3006
"priority": priority,
3007
"servicename": "Mandos",
3008
"use_dbus": "True",
3009
"use_ipv6": "True",
3010
"debuglevel": "",
3011
"restore": "True",
3012
"socket": "",
3013
"statedir": "/var/lib/mandos",
3014
"foreground": "False",
3015
"zeroconf": "True",
3016
}
3017
del priority
3018
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
3019
1874
# Parse config file for server-global settings
3020
server_config = configparser.ConfigParser(server_defaults)
1875
server_config = configparser.SafeConfigParser(server_defaults)
3021
1876
del server_defaults
3022
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3023
# 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
3024
1880
server_settings = server_config.defaults()
3025
1881
# Use the appropriate methods on the non-string config options
3026
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3027
"foreground", "zeroconf"):
1882
for option in ("debug", "use_dbus", "use_ipv6"):
3028
1883
server_settings[option] = server_config.getboolean("DEFAULT",
3029
1884
option)
3030
1885
if server_settings["port"]:
3031
1886
server_settings["port"] = server_config.getint("DEFAULT",
3032
1887
"port")
3033
if server_settings["socket"]:
3034
server_settings["socket"] = server_config.getint("DEFAULT",
3035
"socket")
3036
# Later, stdin will, and stdout and stderr might, be dup'ed
3037
# over with an opened os.devnull. But we don't want this to
3038
# happen with a supplied network socket.
3039
if 0 <= server_settings["socket"] <= 2:
3040
server_settings["socket"] = os.dup(server_settings
3041
["socket"])
3042
1888
del server_config
3043
1889
3044
1890
# Override the settings from the config file with command line
3045
1891
# options, if set.
3046
1892
for option in ("interface", "address", "port", "debug",
3047
"priority", "servicename", "configdir", "use_dbus",
3048
"use_ipv6", "debuglevel", "restore", "statedir",
3049
"socket", "foreground", "zeroconf"):
1893
"priority", "servicename", "configdir",
1894
"use_dbus", "use_ipv6", "debuglevel"):
3050
1895
value = getattr(options, option)
3051
1896
if value is not None:
3052
1897
server_settings[option] = value
3053
1898
del options
3054
1899
# Force all strings to be unicode
3055
1900
for option in server_settings.keys():
3056
if isinstance(server_settings[option], bytes):
3057
server_settings[option] = (server_settings[option]
3058
.decode("utf-8"))
3059
# Force all boolean options to be boolean
3060
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3061
"foreground", "zeroconf"):
3062
server_settings[option] = bool(server_settings[option])
3063
# Debug implies foreground
3064
if server_settings["debug"]:
3065
server_settings["foreground"] = True
1901
if type(server_settings[option]) is str:
1902
server_settings[option] = unicode(server_settings[option])
3066
1903
# Now we have our good server settings in "server_settings"
3067
1904
3068
1905
##################################################################
3069
3070
if (not server_settings["zeroconf"]
3071
and not (server_settings["port"]
3072
or server_settings["socket"] != "")):
3073
parser.error("Needs port or socket to work without Zeroconf")
3074
1906
3075
1907
# For convenience
3076
1908
debug = server_settings["debug"]
3077
1909
debuglevel = server_settings["debuglevel"]
3078
1910
use_dbus = server_settings["use_dbus"]
3079
1911
use_ipv6 = server_settings["use_ipv6"]
3080
stored_state_path = os.path.join(server_settings["statedir"],
3081
stored_state_file)
3082
foreground = server_settings["foreground"]
3083
zeroconf = server_settings["zeroconf"]
3084
3085
if debug:
3086
initlogger(debug, logging.DEBUG)
3087
else:
3088
if not debuglevel:
3089
initlogger(debug)
3090
else:
3091
level = getattr(logging, debuglevel.upper())
3092
initlogger(debug, level)
3093
1912
3094
1913
if server_settings["servicename"] != "Mandos":
3095
syslogger.setFormatter(
3096
logging.Formatter('Mandos ({}) [%(process)d]:'
3097
' %(levelname)s: %(message)s'.format(
3098
server_settings["servicename"])))
3099
1914
syslogger.setFormatter(logging.Formatter
1915
('Mandos (%s) [%%(process)d]:'
1916
' %%(levelname)s: %%(message)s'
1917
% server_settings["servicename"]))
1918
3100
1919
# Parse config file with clients
3101
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)
3102
1929
client_config.read(os.path.join(server_settings["configdir"],
3103
1930
"clients.conf"))
3104
1931
3105
1932
global mandos_dbus_service
3106
1933
mandos_dbus_service = None
3107
3108
socketfd = None
3109
if server_settings["socket"] != "":
3110
socketfd = server_settings["socket"]
3111
tcp_server = MandosServer(
3112
(server_settings["address"], server_settings["port"]),
3113
ClientHandler,
3114
interface=(server_settings["interface"] or None),
3115
use_ipv6=use_ipv6,
3116
gnutls_priority=server_settings["priority"],
3117
use_dbus=use_dbus,
3118
socketfd=socketfd)
3119
if not foreground:
3120
pidfilename = "/run/mandos.pid"
3121
if not os.path.isdir("/run/."):
3122
pidfilename = "/var/run/mandos.pid"
3123
pidfile = None
3124
try:
3125
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3126
except IOError as e:
3127
logger.error("Could not open file %r", pidfilename,
3128
exc_info=e)
3129
3130
for name, group in (("_mandos", "_mandos"),
3131
("mandos", "mandos"),
3132
("nobody", "nogroup")):
3133
try:
3134
uid = pwd.getpwnam(name).pw_uid
3135
gid = pwd.getpwnam(group).pw_gid
3136
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
3137
1958
except KeyError:
3138
continue
3139
else:
3140
uid = 65534
3141
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
3142
1965
try:
3143
1966
os.setgid(gid)
3144
1967
os.setuid(uid)
3145
if debug:
3146
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3147
gid))
3148
1968
except OSError as error:
3149
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3150
.format(uid, gid, os.strerror(error.errno)))
3151
if error.errno != errno.EPERM:
3152
raise
3153
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
3154
1980
if debug:
3155
1981
# Enable all possible GnuTLS debugging
3156
1982
3157
1983
# "Use a log level over 10 to enable all debugging options."
3158
1984
# - GnuTLS manual
3159
gnutls.global_set_log_level(11)
3160
3161
@gnutls.log_func
1985
gnutls.library.functions.gnutls_global_set_log_level(11)
1986
1987
@gnutls.library.types.gnutls_log_func
3162
1988
def debug_gnutls(level, string):
3163
1989
logger.debug("GnuTLS: %s", string[:-1])
3164
3165
gnutls.global_set_log_function(debug_gnutls)
3166
1990
1991
(gnutls.library.functions
1992
.gnutls_global_set_log_function(debug_gnutls))
1993
3167
1994
# Redirect stdin so all checkers get /dev/null
3168
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1995
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3169
1996
os.dup2(null, sys.stdin.fileno())
3170
1997
if null > 2:
3171
1998
os.close(null)
3172
1999
else:
2000
# No console logging
2001
logger.removeHandler(console)
2002
3173
2003
# Need to fork before connecting to D-Bus
3174
if not foreground:
2004
if not debug:
3175
2005
# Close all input and output, do double fork, etc.
3176
2006
daemon()
3177
3178
if gi.version_info < (3, 10, 2):
3179
# multiprocessing will use threads, so before we use GLib we
3180
# need to inform GLib that threads will be used.
3181
GLib.threads_init()
3182
2007
3183
2008
global main_loop
3184
2009
# From the Avahi example code
3185
DBusGMainLoop(set_as_default=True)
3186
main_loop = GLib.MainLoop()
2010
DBusGMainLoop(set_as_default=True )
2011
main_loop = gobject.MainLoop()
3187
2012
bus = dbus.SystemBus()
3188
2013
# End of Avahi example code
3189
2014
if use_dbus:
3190
2015
try:
3191
2016
bus_name = dbus.service.BusName("se.recompile.Mandos",
3192
bus,
3193
do_not_queue=True)
3194
old_bus_name = dbus.service.BusName(
3195
"se.bsnet.fukt.Mandos", bus,
3196
do_not_queue=True)
3197
except dbus.exceptions.DBusException as e:
3198
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")
3199
2023
use_dbus = False
3200
2024
server_settings["use_dbus"] = False
3201
2025
tcp_server.use_dbus = False
3202
if zeroconf:
3203
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3204
service = AvahiServiceToSyslog(
3205
name=server_settings["servicename"],
3206
servicetype="_mandos._tcp",
3207
protocol=protocol,
3208
bus=bus)
3209
if server_settings["interface"]:
3210
service.interface = if_nametoindex(
3211
server_settings["interface"].encode("utf-8"))
3212
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
3213
2034
global multiprocessing_manager
3214
2035
multiprocessing_manager = multiprocessing.Manager()
3215
2036
3216
2037
client_class = Client
3217
2038
if use_dbus:
3218
client_class = functools.partial(ClientDBus, bus=bus)
3219
3220
client_settings = Client.config_parser(client_config)
3221
old_client_settings = {}
3222
clients_data = {}
3223
3224
# This is used to redirect stdout and stderr for checker processes
3225
global wnull
3226
wnull = open(os.devnull, "w") # A writable /dev/null
3227
# Only used if server is running in foreground but not in debug
3228
# mode
3229
if debug or not foreground:
3230
wnull.close()
3231
3232
# Get client data and settings from last running state.
3233
if server_settings["restore"]:
3234
try:
3235
with open(stored_state_path, "rb") as stored_state:
3236
if sys.version_info.major == 2:
3237
clients_data, old_client_settings = pickle.load(
3238
stored_state)
3239
else:
3240
bytes_clients_data, bytes_old_client_settings = (
3241
pickle.load(stored_state, encoding="bytes"))
3242
# Fix bytes to strings
3243
# clients_data
3244
# .keys()
3245
clients_data = {(key.decode("utf-8")
3246
if isinstance(key, bytes)
3247
else key): value
3248
for key, value in
3249
bytes_clients_data.items()}
3250
del bytes_clients_data
3251
for key in clients_data:
3252
value = {(k.decode("utf-8")
3253
if isinstance(k, bytes) else k): v
3254
for k, v in
3255
clients_data[key].items()}
3256
clients_data[key] = value
3257
# .client_structure
3258
value["client_structure"] = [
3259
(s.decode("utf-8")
3260
if isinstance(s, bytes)
3261
else s) for s in
3262
value["client_structure"]]
3263
# .name, .host, and .checker_command
3264
for k in ("name", "host", "checker_command"):
3265
if isinstance(value[k], bytes):
3266
value[k] = value[k].decode("utf-8")
3267
if "key_id" not in value:
3268
value["key_id"] = ""
3269
elif "fingerprint" not in value:
3270
value["fingerprint"] = ""
3271
# old_client_settings
3272
# .keys()
3273
old_client_settings = {
3274
(key.decode("utf-8")
3275
if isinstance(key, bytes)
3276
else key): value
3277
for key, value in
3278
bytes_old_client_settings.items()}
3279
del bytes_old_client_settings
3280
# .host and .checker_command
3281
for value in old_client_settings.values():
3282
for attribute in ("host", "checker_command"):
3283
if isinstance(value[attribute], bytes):
3284
value[attribute] = (value[attribute]
3285
.decode("utf-8"))
3286
os.remove(stored_state_path)
3287
except IOError as e:
3288
if e.errno == errno.ENOENT:
3289
logger.warning("Could not load persistent state:"
3290
" {}".format(os.strerror(e.errno)))
3291
else:
3292
logger.critical("Could not load persistent state:",
3293
exc_info=e)
3294
raise
3295
except EOFError as e:
3296
logger.warning("Could not load persistent state: "
3297
"EOFError:",
3298
exc_info=e)
3299
3300
with PGPEngine() as pgp:
3301
for client_name, client in clients_data.items():
3302
# Skip removed clients
3303
if client_name not in client_settings:
3304
continue
3305
3306
# Decide which value to use after restoring saved state.
3307
# We have three different values: Old config file,
3308
# new config file, and saved state.
3309
# New config value takes precedence if it differs from old
3310
# config value, otherwise use saved state.
3311
for name, value in client_settings[client_name].items():
3312
try:
3313
# For each value in new config, check if it
3314
# differs from the old config value (Except for
3315
# the "secret" attribute)
3316
if (name != "secret"
3317
and (value !=
3318
old_client_settings[client_name][name])):
3319
client[name] = value
3320
except KeyError:
3321
pass
3322
3323
# Clients who has passed its expire date can still be
3324
# enabled if its last checker was successful. A Client
3325
# whose checker succeeded before we stored its state is
3326
# assumed to have successfully run all checkers during
3327
# downtime.
3328
if client["enabled"]:
3329
if datetime.datetime.utcnow() >= client["expires"]:
3330
if not client["last_checked_ok"]:
3331
logger.warning(
3332
"disabling client {} - Client never "
3333
"performed a successful checker".format(
3334
client_name))
3335
client["enabled"] = False
3336
elif client["last_checker_status"] != 0:
3337
logger.warning(
3338
"disabling client {} - Client last"
3339
" checker failed with error code"
3340
" {}".format(
3341
client_name,
3342
client["last_checker_status"]))
3343
client["enabled"] = False
3344
else:
3345
client["expires"] = (
3346
datetime.datetime.utcnow()
3347
+ client["timeout"])
3348
logger.debug("Last checker succeeded,"
3349
" keeping {} enabled".format(
3350
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):
3351
2048
try:
3352
client["secret"] = pgp.decrypt(
3353
client["encrypted_secret"],
3354
client_settings[client_name]["secret"])
3355
except PGPError:
3356
# If decryption fails, we use secret from new settings
3357
logger.debug("Failed to decrypt {} old secret".format(
3358
client_name))
3359
client["secret"] = (client_settings[client_name]
3360
["secret"])
3361
3362
# Add/remove clients based on new changes made to config
3363
for client_name in (set(old_client_settings)
3364
- set(client_settings)):
3365
del clients_data[client_name]
3366
for client_name in (set(client_settings)
3367
- set(old_client_settings)):
3368
clients_data[client_name] = client_settings[client_name]
3369
3370
# Create all client objects
3371
for client_name, client in clients_data.items():
3372
tcp_server.clients[client_name] = client_class(
3373
name=client_name,
3374
settings=client,
3375
server_settings=server_settings)
3376
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()))
3377
2058
if not tcp_server.clients:
3378
2059
logger.warning("No clients defined")
3379
3380
if not foreground:
3381
if pidfile is not None:
3382
pid = os.getpid()
3383
try:
3384
with pidfile:
3385
print(pid, file=pidfile)
3386
except IOError:
3387
logger.error("Could not write to file %r with PID %d",
3388
pidfilename, pid)
3389
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
3390
2073
del pidfilename
3391
3392
for termsig in (signal.SIGHUP, signal.SIGTERM):
3393
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3394
lambda: main_loop.quit() and False)
3395
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
3396
2080
if use_dbus:
3397
3398
@alternate_dbus_interfaces(
3399
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3400
class MandosDBusService(DBusObjectWithObjectManager):
2081
class MandosDBusService(dbus.service.Object):
3401
2082
"""A D-Bus proxy object"""
3402
3403
2083
def __init__(self):
3404
2084
dbus.service.Object.__init__(self, bus, "/")
3405
3406
2085
_interface = "se.recompile.Mandos"
3407
2086
3408
2087
@dbus.service.signal(_interface, signature="o")
3409
2088
def ClientAdded(self, objpath):
3410
2089
"D-Bus signal"
3411
2090
pass
3412
2091
3413
2092
@dbus.service.signal(_interface, signature="ss")
3414
def ClientNotFound(self, key_id, address):
2093
def ClientNotFound(self, fingerprint, address):
3415
2094
"D-Bus signal"
3416
2095
pass
3417
3418
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3419
"true"})
2096
3420
2097
@dbus.service.signal(_interface, signature="os")
3421
2098
def ClientRemoved(self, objpath, name):
3422
2099
"D-Bus signal"
3423
2100
pass
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2101
3427
2102
@dbus.service.method(_interface, out_signature="ao")
3428
2103
def GetAllClients(self):
3429
2104
"D-Bus method"
3430
return dbus.Array(c.dbus_object_path for c in
3431
tcp_server.clients.values())
3432
3433
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3434
"true"})
2105
return dbus.Array(c.dbus_object_path
2106
for c in tcp_server.clients)
2107
3435
2108
@dbus.service.method(_interface,
3436
2109
out_signature="a{oa{sv}}")
3437
2110
def GetAllClientsWithProperties(self):
3438
2111
"D-Bus method"
3439
2112
return dbus.Dictionary(
3440
{c.dbus_object_path: c.GetAll(
3441
"se.recompile.Mandos.Client")
3442
for c in tcp_server.clients.values()},
2113
((c.dbus_object_path, c.GetAll(""))
2114
for c in tcp_server.clients),
3443
2115
signature="oa{sv}")
3444
2116
3445
2117
@dbus.service.method(_interface, in_signature="o")
3446
2118
def RemoveClient(self, object_path):
3447
2119
"D-Bus method"
3448
for c in tcp_server.clients.values():
2120
for c in tcp_server.clients:
3449
2121
if c.dbus_object_path == object_path:
3450
del tcp_server.clients[c.name]
2122
tcp_server.clients.remove(c)
3451
2123
c.remove_from_connection()
3452
# Don't signal the disabling
2124
# Don't signal anything except ClientRemoved
3453
2125
c.disable(quiet=True)
3454
# Emit D-Bus signal for removal
3455
self.client_removed_signal(c)
2126
# Emit D-Bus signal
2127
self.ClientRemoved(object_path, c.name)
3456
2128
return
3457
2129
raise KeyError(object_path)
3458
2130
3459
2131
del _interface
3460
3461
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3462
out_signature="a{oa{sa{sv}}}")
3463
def GetManagedObjects(self):
3464
"""D-Bus method"""
3465
return dbus.Dictionary(
3466
{client.dbus_object_path:
3467
dbus.Dictionary(
3468
{interface: client.GetAll(interface)
3469
for interface in
3470
client._get_all_interface_names()})
3471
for client in tcp_server.clients.values()})
3472
3473
def client_added_signal(self, client):
3474
"""Send the new standard signal and the old signal"""
3475
if use_dbus:
3476
# New standard signal
3477
self.InterfacesAdded(
3478
client.dbus_object_path,
3479
dbus.Dictionary(
3480
{interface: client.GetAll(interface)
3481
for interface in
3482
client._get_all_interface_names()}))
3483
# Old signal
3484
self.ClientAdded(client.dbus_object_path)
3485
3486
def client_removed_signal(self, client):
3487
"""Send the new standard signal and the old signal"""
3488
if use_dbus:
3489
# New standard signal
3490
self.InterfacesRemoved(
3491
client.dbus_object_path,
3492
client._get_all_interface_names())
3493
# Old signal
3494
self.ClientRemoved(client.dbus_object_path,
3495
client.name)
3496
3497
mandos_dbus_service = MandosDBusService()
3498
3499
# Save modules to variables to exempt the modules from being
3500
# unloaded before the function registered with atexit() is run.
3501
mp = multiprocessing
3502
wn = wnull
3503
2132
2133
class MandosDBusServiceTransitional(MandosDBusService):
2134
__metaclass__ = AlternateDBusNamesMetaclass
2135
mandos_dbus_service = MandosDBusServiceTransitional()
2136
3504
2137
def cleanup():
3505
2138
"Cleanup function; run on exit"
3506
if zeroconf:
3507
service.cleanup()
3508
3509
mp.active_children()
3510
wn.close()
3511
if not (tcp_server.clients or client_settings):
3512
return
3513
3514
# Store client before exiting. Secrets are encrypted with key
3515
# based on what config file has. If config file is
3516
# removed/edited, old secret will thus be unrecovable.
3517
clients = {}
3518
with PGPEngine() as pgp:
3519
for client in tcp_server.clients.values():
3520
key = client_settings[client.name]["secret"]
3521
client.encrypted_secret = pgp.encrypt(client.secret,
3522
key)
3523
client_dict = {}
3524
3525
# A list of attributes that can not be pickled
3526
# + secret.
3527
exclude = {"bus", "changedstate", "secret",
3528
"checker", "server_settings"}
3529
for name, typ in inspect.getmembers(dbus.service
3530
.Object):
3531
exclude.add(name)
3532
3533
client_dict["encrypted_secret"] = (client
3534
.encrypted_secret)
3535
for attr in client.client_structure:
3536
if attr not in exclude:
3537
client_dict[attr] = getattr(client, attr)
3538
3539
clients[client.name] = client_dict
3540
del client_settings[client.name]["secret"]
3541
3542
try:
3543
with tempfile.NamedTemporaryFile(
3544
mode='wb',
3545
suffix=".pickle",
3546
prefix='clients-',
3547
dir=os.path.dirname(stored_state_path),
3548
delete=False) as stored_state:
3549
pickle.dump((clients, client_settings), stored_state,
3550
protocol=2)
3551
tempname = stored_state.name
3552
os.rename(tempname, stored_state_path)
3553
except (IOError, OSError) as e:
3554
if not debug:
3555
try:
3556
os.remove(tempname)
3557
except NameError:
3558
pass
3559
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3560
logger.warning("Could not save persistent state: {}"
3561
.format(os.strerror(e.errno)))
3562
else:
3563
logger.warning("Could not save persistent state:",
3564
exc_info=e)
3565
raise
3566
3567
# Delete all clients, and settings from config
2139
service.cleanup()
2140
2141
multiprocessing.active_children()
3568
2142
while tcp_server.clients:
3569
name, client = tcp_server.clients.popitem()
2143
client = tcp_server.clients.pop()
3570
2144
if use_dbus:
3571
2145
client.remove_from_connection()
3572
# Don't signal the disabling
2146
client.disable_hook = None
2147
# Don't signal anything except ClientRemoved
3573
2148
client.disable(quiet=True)
3574
# Emit D-Bus signal for removal
3575
2149
if use_dbus:
3576
mandos_dbus_service.client_removed_signal(client)
3577
client_settings.clear()
3578
2150
# Emit D-Bus signal
2151
mandos_dbus_service.ClientRemoved(client
2152
.dbus_object_path,
2153
client.name)
2154
3579
2155
atexit.register(cleanup)
3580
3581
for client in tcp_server.clients.values():
2156
2157
for client in tcp_server.clients:
3582
2158
if use_dbus:
3583
# Emit D-Bus signal for adding
3584
mandos_dbus_service.client_added_signal(client)
3585
# Need to initiate checking of clients
3586
if client.enabled:
3587
client.init_checker()
3588
2159
# Emit D-Bus signal
2160
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2161
client.enable()
2162
3589
2163
tcp_server.enable()
3590
2164
tcp_server.server_activate()
3591
2165
3592
2166
# Find out what port we got
3593
if zeroconf:
3594
service.port = tcp_server.socket.getsockname()[1]
2167
service.port = tcp_server.socket.getsockname()[1]
3595
2168
if use_ipv6:
3596
2169
logger.info("Now listening on address %r, port %d,"
3597
" flowinfo %d, scope_id %d",
3598
*tcp_server.socket.getsockname())
2170
" flowinfo %d, scope_id %d"
2171
% tcp_server.socket.getsockname())
3599
2172
else: # IPv4
3600
logger.info("Now listening on address %r, port %d",
3601
*tcp_server.socket.getsockname())
3602
3603
# service.interface = tcp_server.socket.getsockname()[3]
3604
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
3605
2178
try:
3606
if zeroconf:
3607
# From the Avahi example code
3608
try:
3609
service.activate()
3610
except dbus.exceptions.DBusException as error:
3611
logger.critical("D-Bus Exception", exc_info=error)
3612
cleanup()
3613
sys.exit(1)
3614
# End of Avahi example code
3615
3616
GLib.io_add_watch(
3617
GLib.IOChannel.unix_new(tcp_server.fileno()),
3618
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3619
lambda *args, **kwargs: (tcp_server.handle_request
3620
(*args[2:], **kwargs) or True))
3621
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
3622
2193
logger.debug("Starting main loop")
3623
2194
main_loop.run()
3624
2195
except AvahiError as error:
3625
logger.critical("Avahi Error", exc_info=error)
2196
logger.critical("AvahiError: %s", error)
3626
2197
cleanup()
3627
2198
sys.exit(1)
3628
2199
except KeyboardInterrupt:
3633
2204
# Must run before the D-Bus bus name gets deregistered
3634
2205
cleanup()
3635
2206
3636
3637
def should_only_run_tests():
3638
parser = argparse.ArgumentParser(add_help=False)
3639
parser.add_argument("--check", action='store_true')
3640
args, unknown_args = parser.parse_known_args()
3641
run_tests = args.check
3642
if run_tests:
3643
# Remove --check argument from sys.argv
3644
sys.argv[1:] = unknown_args
3645
return run_tests
3646
3647
# Add all tests from doctest strings
3648
def load_tests(loader, tests, none):
3649
import doctest
3650
tests.addTests(doctest.DocTestSuite())
3651
return tests
3652
2207
3653
2208
if __name__ == '__main__':
3654
try:
3655
if should_only_run_tests():
3656
# Call using ./mandos --check [--verbose]
3657
unittest.main()
3658
else:
3659
main()
3660
finally:
3661
logging.shutdown()
2209
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0