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- Committer: teddy at bsnet
- Date: 2011-11-11 15:05:27 UTC
- mto: (505.2.5 mandos-client-network-hooks)
- mto: This revision was merged to the branch mainline in revision 525.
- Revision ID: teddy@fukt.bsnet.se-20111111150527-hdlgk1hkubtbth10
* plugins.d/mandos-client.c (good_interface): Add error message.
(up_interface): Use get_flags() and good_flags(). Also check the
IFF_RUNNING flags.
(runnable_hook): Bug fix: Add NULL to execl() call.
(main): Use network interfaces which are up and running in
preference to any other interfaces.
(up_interface): Use get_flags() and good_flags(). Also check the
IFF_RUNNING flags.
(runnable_hook): Bug fix: Add NULL to execl() call.
(main): Use network interfaces which are up and running in
preference to any other interfaces.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
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
# Show warnings by default
98
if not sys.warnoptions:
99
import warnings
100
warnings.simplefilter("default")
101
102
# Try to find the value of SO_BINDTODEVICE:
103
77
try:
104
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
105
# newer, and it is also the most natural place for it:
106
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
107
79
except AttributeError:
108
80
try:
109
# This is where SO_BINDTODEVICE was up to and including Python
110
# 2.6, and also 3.2:
111
81
from IN import SO_BINDTODEVICE
112
82
except ImportError:
113
# In Python 2.7 it seems to have been removed entirely.
114
# Try running the C preprocessor:
115
try:
116
cc = subprocess.Popen(["cc", "--language=c", "-E",
117
"/dev/stdin"],
118
stdin=subprocess.PIPE,
119
stdout=subprocess.PIPE)
120
stdout = cc.communicate(
121
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
122
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
123
except (OSError, ValueError, IndexError):
124
# No value found
125
SO_BINDTODEVICE = None
126
127
if sys.version_info < (3, 2):
128
configparser.Configparser = configparser.SafeConfigParser
129
130
version = "1.8.9"
131
stored_state_file = "clients.pickle"
132
133
logger = logging.getLogger()
134
logging.captureWarnings(True) # Show warnings via the logging system
135
syslogger = None
136
137
try:
138
if_nametoindex = ctypes.cdll.LoadLibrary(
139
ctypes.util.find_library("c")).if_nametoindex
140
except (OSError, AttributeError):
141
142
def if_nametoindex(interface):
143
"Get an interface index the hard way, i.e. using fcntl()"
144
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
145
with contextlib.closing(socket.socket()) as s:
146
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
147
struct.pack(b"16s16x", interface))
148
interface_index = struct.unpack("I", ifreq[16:20])[0]
149
return interface_index
150
151
152
def copy_function(func):
153
"""Make a copy of a function"""
154
if sys.version_info.major == 2:
155
return types.FunctionType(func.func_code,
156
func.func_globals,
157
func.func_name,
158
func.func_defaults,
159
func.func_closure)
160
else:
161
return types.FunctionType(func.__code__,
162
func.__globals__,
163
func.__name__,
164
func.__defaults__,
165
func.__closure__)
166
167
168
def initlogger(debug, level=logging.WARNING):
169
"""init logger and add loglevel"""
170
171
global syslogger
172
syslogger = (logging.handlers.SysLogHandler(
173
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
174
address="/dev/log"))
175
syslogger.setFormatter(logging.Formatter
176
('Mandos [%(process)d]: %(levelname)s:'
177
' %(message)s'))
178
logger.addHandler(syslogger)
179
180
if debug:
181
console = logging.StreamHandler()
182
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
183
' [%(process)d]:'
184
' %(levelname)s:'
185
' %(message)s'))
186
logger.addHandler(console)
187
logger.setLevel(level)
188
189
190
class PGPError(Exception):
191
"""Exception if encryption/decryption fails"""
192
pass
193
194
195
class PGPEngine:
196
"""A simple class for OpenPGP symmetric encryption & decryption"""
197
198
def __init__(self):
199
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
200
self.gpg = "gpg"
201
try:
202
output = subprocess.check_output(["gpgconf"])
203
for line in output.splitlines():
204
name, text, path = line.split(b":")
205
if name == b"gpg":
206
self.gpg = path
207
break
208
except OSError as e:
209
if e.errno != errno.ENOENT:
210
raise
211
self.gnupgargs = ['--batch',
212
'--homedir', self.tempdir,
213
'--force-mdc',
214
'--quiet']
215
# Only GPG version 1 has the --no-use-agent option.
216
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
217
self.gnupgargs.append("--no-use-agent")
218
219
def __enter__(self):
220
return self
221
222
def __exit__(self, exc_type, exc_value, traceback):
223
self._cleanup()
224
return False
225
226
def __del__(self):
227
self._cleanup()
228
229
def _cleanup(self):
230
if self.tempdir is not None:
231
# Delete contents of tempdir
232
for root, dirs, files in os.walk(self.tempdir,
233
topdown=False):
234
for filename in files:
235
os.remove(os.path.join(root, filename))
236
for dirname in dirs:
237
os.rmdir(os.path.join(root, dirname))
238
# Remove tempdir
239
os.rmdir(self.tempdir)
240
self.tempdir = None
241
242
def password_encode(self, password):
243
# Passphrase can not be empty and can not contain newlines or
244
# NUL bytes. So we prefix it and hex encode it.
245
encoded = b"mandos" + binascii.hexlify(password)
246
if len(encoded) > 2048:
247
# GnuPG can't handle long passwords, so encode differently
248
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
249
.replace(b"\n", b"\\n")
250
.replace(b"\0", b"\\x00"))
251
return encoded
252
253
def encrypt(self, data, password):
254
passphrase = self.password_encode(password)
255
with tempfile.NamedTemporaryFile(
256
dir=self.tempdir) as passfile:
257
passfile.write(passphrase)
258
passfile.flush()
259
proc = subprocess.Popen([self.gpg, '--symmetric',
260
'--passphrase-file',
261
passfile.name]
262
+ self.gnupgargs,
263
stdin=subprocess.PIPE,
264
stdout=subprocess.PIPE,
265
stderr=subprocess.PIPE)
266
ciphertext, err = proc.communicate(input=data)
267
if proc.returncode != 0:
268
raise PGPError(err)
269
return ciphertext
270
271
def decrypt(self, data, password):
272
passphrase = self.password_encode(password)
273
with tempfile.NamedTemporaryFile(
274
dir=self.tempdir) as passfile:
275
passfile.write(passphrase)
276
passfile.flush()
277
proc = subprocess.Popen([self.gpg, '--decrypt',
278
'--passphrase-file',
279
passfile.name]
280
+ self.gnupgargs,
281
stdin=subprocess.PIPE,
282
stdout=subprocess.PIPE,
283
stderr=subprocess.PIPE)
284
decrypted_plaintext, err = proc.communicate(input=data)
285
if proc.returncode != 0:
286
raise PGPError(err)
287
return decrypted_plaintext
288
289
290
# Pretend that we have an Avahi module
291
class avahi:
292
"""This isn't so much a class as it is a module-like namespace."""
293
IF_UNSPEC = -1 # avahi-common/address.h
294
PROTO_UNSPEC = -1 # avahi-common/address.h
295
PROTO_INET = 0 # avahi-common/address.h
296
PROTO_INET6 = 1 # avahi-common/address.h
297
DBUS_NAME = "org.freedesktop.Avahi"
298
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
299
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
300
DBUS_PATH_SERVER = "/"
301
302
@staticmethod
303
def string_array_to_txt_array(t):
304
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
305
for s in t), signature="ay")
306
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
307
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
308
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
309
SERVER_INVALID = 0 # avahi-common/defs.h
310
SERVER_REGISTERING = 1 # avahi-common/defs.h
311
SERVER_RUNNING = 2 # avahi-common/defs.h
312
SERVER_COLLISION = 3 # avahi-common/defs.h
313
SERVER_FAILURE = 4 # avahi-common/defs.h
314
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)
315
103
316
104
class AvahiError(Exception):
317
105
def __init__(self, value, *args, **kwargs):
318
106
self.value = value
319
return super(AvahiError, self).__init__(value, *args,
320
**kwargs)
321
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
322
110
323
111
class AvahiServiceError(AvahiError):
324
112
pass
325
113
326
327
114
class AvahiGroupError(AvahiError):
328
115
pass
329
116
330
117
331
class AvahiService:
118
class AvahiService(object):
332
119
"""An Avahi (Zeroconf) service.
333
120
334
121
Attributes:
335
122
interface: integer; avahi.IF_UNSPEC or an interface index.
336
123
Used to optionally bind to the specified interface.
337
124
name: string; Example: 'Mandos'
338
125
type: string; Example: '_mandos._tcp'.
339
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
340
127
port: integer; what port to announce
341
128
TXT: list of strings; TXT record for the service
342
129
domain: string; Domain to publish on, default to .local if empty.
348
135
server: D-Bus Server
349
136
bus: dbus.SystemBus()
350
137
"""
351
352
def __init__(self,
353
interface=avahi.IF_UNSPEC,
354
name=None,
355
servicetype=None,
356
port=None,
357
TXT=None,
358
domain="",
359
host="",
360
max_renames=32768,
361
protocol=avahi.PROTO_UNSPEC,
362
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):
363
142
self.interface = interface
364
143
self.name = name
365
144
self.type = servicetype
374
153
self.server = None
375
154
self.bus = bus
376
155
self.entry_group_state_changed_match = None
377
378
def rename(self, remove=True):
156
def rename(self):
379
157
"""Derived from the Avahi example code"""
380
158
if self.rename_count >= self.max_renames:
381
159
logger.critical("No suitable Zeroconf service name found"
382
160
" after %i retries, exiting.",
383
161
self.rename_count)
384
162
raise AvahiServiceError("Too many renames")
385
self.name = str(
386
self.server.GetAlternativeServiceName(self.name))
387
self.rename_count += 1
163
self.name = unicode(self.server
164
.GetAlternativeServiceName(self.name))
388
165
logger.info("Changing Zeroconf service name to %r ...",
389
166
self.name)
390
if remove:
391
self.remove()
167
syslogger.setFormatter(logging.Formatter
168
('Mandos (%s) [%%(process)d]:'
169
' %%(levelname)s: %%(message)s'
170
% self.name))
171
self.remove()
392
172
try:
393
173
self.add()
394
174
except dbus.exceptions.DBusException as error:
395
if (error.get_dbus_name()
396
== "org.freedesktop.Avahi.CollisionError"):
397
logger.info("Local Zeroconf service name collision.")
398
return self.rename(remove=False)
399
else:
400
logger.critical("D-Bus Exception", exc_info=error)
401
self.cleanup()
402
os._exit(1)
403
175
logger.critical("DBusException: %s", error)
176
self.cleanup()
177
os._exit(1)
178
self.rename_count += 1
404
179
def remove(self):
405
180
"""Derived from the Avahi example code"""
406
181
if self.entry_group_state_changed_match is not None:
408
183
self.entry_group_state_changed_match = None
409
184
if self.group is not None:
410
185
self.group.Reset()
411
412
186
def add(self):
413
187
"""Derived from the Avahi example code"""
414
188
self.remove()
419
193
avahi.DBUS_INTERFACE_ENTRY_GROUP)
420
194
self.entry_group_state_changed_match = (
421
195
self.group.connect_to_signal(
422
'StateChanged', self.entry_group_state_changed))
196
'StateChanged', self .entry_group_state_changed))
423
197
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
424
198
self.name, self.type)
425
199
self.group.AddService(
431
205
dbus.UInt16(self.port),
432
206
avahi.string_array_to_txt_array(self.TXT))
433
207
self.group.Commit()
434
435
208
def entry_group_state_changed(self, state, error):
436
209
"""Derived from the Avahi example code"""
437
210
logger.debug("Avahi entry group state change: %i", state)
438
211
439
212
if state == avahi.ENTRY_GROUP_ESTABLISHED:
440
213
logger.debug("Zeroconf service established.")
441
214
elif state == avahi.ENTRY_GROUP_COLLISION:
443
216
self.rename()
444
217
elif state == avahi.ENTRY_GROUP_FAILURE:
445
218
logger.critical("Avahi: Error in group state changed %s",
446
str(error))
447
raise AvahiGroupError("State changed: {!s}".format(error))
448
219
unicode(error))
220
raise AvahiGroupError("State changed: %s"
221
% unicode(error))
449
222
def cleanup(self):
450
223
"""Derived from the Avahi example code"""
451
224
if self.group is not None:
452
225
try:
453
226
self.group.Free()
454
227
except (dbus.exceptions.UnknownMethodException,
455
dbus.exceptions.DBusException):
228
dbus.exceptions.DBusException) as e:
456
229
pass
457
230
self.group = None
458
231
self.remove()
459
460
232
def server_state_changed(self, state, error=None):
461
233
"""Derived from the Avahi example code"""
462
234
logger.debug("Avahi server state change: %i", state)
463
bad_states = {
464
avahi.SERVER_INVALID: "Zeroconf server invalid",
465
avahi.SERVER_REGISTERING: None,
466
avahi.SERVER_COLLISION: "Zeroconf server name collision",
467
avahi.SERVER_FAILURE: "Zeroconf server failure",
468
}
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" }
469
242
if state in bad_states:
470
243
if bad_states[state] is not None:
471
244
if error is None:
474
247
logger.error(bad_states[state] + ": %r", error)
475
248
self.cleanup()
476
249
elif state == avahi.SERVER_RUNNING:
477
try:
478
self.add()
479
except dbus.exceptions.DBusException as error:
480
if (error.get_dbus_name()
481
== "org.freedesktop.Avahi.CollisionError"):
482
logger.info("Local Zeroconf service name"
483
" collision.")
484
return self.rename(remove=False)
485
else:
486
logger.critical("D-Bus Exception", exc_info=error)
487
self.cleanup()
488
os._exit(1)
250
self.add()
489
251
else:
490
252
if error is None:
491
253
logger.debug("Unknown state: %r", state)
492
254
else:
493
255
logger.debug("Unknown state: %r: %r", state, error)
494
495
256
def activate(self):
496
257
"""Derived from the Avahi example code"""
497
258
if self.server is None:
501
262
follow_name_owner_changes=True),
502
263
avahi.DBUS_INTERFACE_SERVER)
503
264
self.server.connect_to_signal("StateChanged",
504
self.server_state_changed)
265
self.server_state_changed)
505
266
self.server_state_changed(self.server.GetState())
506
267
507
268
508
class AvahiServiceToSyslog(AvahiService):
509
def rename(self, *args, **kwargs):
510
"""Add the new name to the syslog messages"""
511
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
512
syslogger.setFormatter(logging.Formatter(
513
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
514
.format(self.name)))
515
return ret
516
517
518
# Pretend that we have a GnuTLS module
519
class gnutls:
520
"""This isn't so much a class as it is a module-like namespace."""
521
522
library = ctypes.util.find_library("gnutls")
523
if library is None:
524
library = ctypes.util.find_library("gnutls-deb0")
525
_library = ctypes.cdll.LoadLibrary(library)
526
del library
527
528
# Unless otherwise indicated, the constants and types below are
529
# all from the gnutls/gnutls.h C header file.
530
531
# Constants
532
E_SUCCESS = 0
533
E_INTERRUPTED = -52
534
E_AGAIN = -28
535
CRT_OPENPGP = 2
536
CRT_RAWPK = 3
537
CLIENT = 2
538
SHUT_RDWR = 0
539
CRD_CERTIFICATE = 1
540
E_NO_CERTIFICATE_FOUND = -49
541
X509_FMT_DER = 0
542
NO_TICKETS = 1<<10
543
ENABLE_RAWPK = 1<<18
544
CTYPE_PEERS = 3
545
KEYID_USE_SHA256 = 1 # gnutls/x509.h
546
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
547
548
# Types
549
class session_int(ctypes.Structure):
550
_fields_ = []
551
session_t = ctypes.POINTER(session_int)
552
553
class certificate_credentials_st(ctypes.Structure):
554
_fields_ = []
555
certificate_credentials_t = ctypes.POINTER(
556
certificate_credentials_st)
557
certificate_type_t = ctypes.c_int
558
559
class datum_t(ctypes.Structure):
560
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
561
('size', ctypes.c_uint)]
562
563
class openpgp_crt_int(ctypes.Structure):
564
_fields_ = []
565
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
566
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
567
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
568
credentials_type_t = ctypes.c_int
569
transport_ptr_t = ctypes.c_void_p
570
close_request_t = ctypes.c_int
571
572
# Exceptions
573
class Error(Exception):
574
def __init__(self, message=None, code=None, args=()):
575
# Default usage is by a message string, but if a return
576
# code is passed, convert it to a string with
577
# gnutls.strerror()
578
self.code = code
579
if message is None and code is not None:
580
message = gnutls.strerror(code)
581
return super(gnutls.Error, self).__init__(
582
message, *args)
583
584
class CertificateSecurityError(Error):
585
pass
586
587
# Classes
588
class Credentials:
589
def __init__(self):
590
self._c_object = gnutls.certificate_credentials_t()
591
gnutls.certificate_allocate_credentials(
592
ctypes.byref(self._c_object))
593
self.type = gnutls.CRD_CERTIFICATE
594
595
def __del__(self):
596
gnutls.certificate_free_credentials(self._c_object)
597
598
class ClientSession:
599
def __init__(self, socket, credentials=None):
600
self._c_object = gnutls.session_t()
601
gnutls_flags = gnutls.CLIENT
602
if gnutls.check_version(b"3.5.6"):
603
gnutls_flags |= gnutls.NO_TICKETS
604
if gnutls.has_rawpk:
605
gnutls_flags |= gnutls.ENABLE_RAWPK
606
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
607
del gnutls_flags
608
gnutls.set_default_priority(self._c_object)
609
gnutls.transport_set_ptr(self._c_object, socket.fileno())
610
gnutls.handshake_set_private_extensions(self._c_object,
611
True)
612
self.socket = socket
613
if credentials is None:
614
credentials = gnutls.Credentials()
615
gnutls.credentials_set(self._c_object, credentials.type,
616
ctypes.cast(credentials._c_object,
617
ctypes.c_void_p))
618
self.credentials = credentials
619
620
def __del__(self):
621
gnutls.deinit(self._c_object)
622
623
def handshake(self):
624
return gnutls.handshake(self._c_object)
625
626
def send(self, data):
627
data = bytes(data)
628
data_len = len(data)
629
while data_len > 0:
630
data_len -= gnutls.record_send(self._c_object,
631
data[-data_len:],
632
data_len)
633
634
def bye(self):
635
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
636
637
# Error handling functions
638
def _error_code(result):
639
"""A function to raise exceptions on errors, suitable
640
for the 'restype' attribute on ctypes functions"""
641
if result >= 0:
642
return result
643
if result == gnutls.E_NO_CERTIFICATE_FOUND:
644
raise gnutls.CertificateSecurityError(code=result)
645
raise gnutls.Error(code=result)
646
647
def _retry_on_error(result, func, arguments):
648
"""A function to retry on some errors, suitable
649
for the 'errcheck' attribute on ctypes functions"""
650
while result < 0:
651
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
652
return _error_code(result)
653
result = func(*arguments)
654
return result
655
656
# Unless otherwise indicated, the function declarations below are
657
# all from the gnutls/gnutls.h C header file.
658
659
# Functions
660
priority_set_direct = _library.gnutls_priority_set_direct
661
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
662
ctypes.POINTER(ctypes.c_char_p)]
663
priority_set_direct.restype = _error_code
664
665
init = _library.gnutls_init
666
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
667
init.restype = _error_code
668
669
set_default_priority = _library.gnutls_set_default_priority
670
set_default_priority.argtypes = [session_t]
671
set_default_priority.restype = _error_code
672
673
record_send = _library.gnutls_record_send
674
record_send.argtypes = [session_t, ctypes.c_void_p,
675
ctypes.c_size_t]
676
record_send.restype = ctypes.c_ssize_t
677
record_send.errcheck = _retry_on_error
678
679
certificate_allocate_credentials = (
680
_library.gnutls_certificate_allocate_credentials)
681
certificate_allocate_credentials.argtypes = [
682
ctypes.POINTER(certificate_credentials_t)]
683
certificate_allocate_credentials.restype = _error_code
684
685
certificate_free_credentials = (
686
_library.gnutls_certificate_free_credentials)
687
certificate_free_credentials.argtypes = [
688
certificate_credentials_t]
689
certificate_free_credentials.restype = None
690
691
handshake_set_private_extensions = (
692
_library.gnutls_handshake_set_private_extensions)
693
handshake_set_private_extensions.argtypes = [session_t,
694
ctypes.c_int]
695
handshake_set_private_extensions.restype = None
696
697
credentials_set = _library.gnutls_credentials_set
698
credentials_set.argtypes = [session_t, credentials_type_t,
699
ctypes.c_void_p]
700
credentials_set.restype = _error_code
701
702
strerror = _library.gnutls_strerror
703
strerror.argtypes = [ctypes.c_int]
704
strerror.restype = ctypes.c_char_p
705
706
certificate_type_get = _library.gnutls_certificate_type_get
707
certificate_type_get.argtypes = [session_t]
708
certificate_type_get.restype = _error_code
709
710
certificate_get_peers = _library.gnutls_certificate_get_peers
711
certificate_get_peers.argtypes = [session_t,
712
ctypes.POINTER(ctypes.c_uint)]
713
certificate_get_peers.restype = ctypes.POINTER(datum_t)
714
715
global_set_log_level = _library.gnutls_global_set_log_level
716
global_set_log_level.argtypes = [ctypes.c_int]
717
global_set_log_level.restype = None
718
719
global_set_log_function = _library.gnutls_global_set_log_function
720
global_set_log_function.argtypes = [log_func]
721
global_set_log_function.restype = None
722
723
deinit = _library.gnutls_deinit
724
deinit.argtypes = [session_t]
725
deinit.restype = None
726
727
handshake = _library.gnutls_handshake
728
handshake.argtypes = [session_t]
729
handshake.restype = _error_code
730
handshake.errcheck = _retry_on_error
731
732
transport_set_ptr = _library.gnutls_transport_set_ptr
733
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
734
transport_set_ptr.restype = None
735
736
bye = _library.gnutls_bye
737
bye.argtypes = [session_t, close_request_t]
738
bye.restype = _error_code
739
bye.errcheck = _retry_on_error
740
741
check_version = _library.gnutls_check_version
742
check_version.argtypes = [ctypes.c_char_p]
743
check_version.restype = ctypes.c_char_p
744
745
_need_version = b"3.3.0"
746
if check_version(_need_version) is None:
747
raise self.Error("Needs GnuTLS {} or later"
748
.format(_need_version))
749
750
_tls_rawpk_version = b"3.6.6"
751
has_rawpk = bool(check_version(_tls_rawpk_version))
752
753
if has_rawpk:
754
# Types
755
class pubkey_st(ctypes.Structure):
756
_fields = []
757
pubkey_t = ctypes.POINTER(pubkey_st)
758
759
x509_crt_fmt_t = ctypes.c_int
760
761
# All the function declarations below are from gnutls/abstract.h
762
pubkey_init = _library.gnutls_pubkey_init
763
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
764
pubkey_init.restype = _error_code
765
766
pubkey_import = _library.gnutls_pubkey_import
767
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
768
x509_crt_fmt_t]
769
pubkey_import.restype = _error_code
770
771
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
772
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
773
ctypes.POINTER(ctypes.c_ubyte),
774
ctypes.POINTER(ctypes.c_size_t)]
775
pubkey_get_key_id.restype = _error_code
776
777
pubkey_deinit = _library.gnutls_pubkey_deinit
778
pubkey_deinit.argtypes = [pubkey_t]
779
pubkey_deinit.restype = None
780
else:
781
# All the function declarations below are from gnutls/openpgp.h
782
783
openpgp_crt_init = _library.gnutls_openpgp_crt_init
784
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
785
openpgp_crt_init.restype = _error_code
786
787
openpgp_crt_import = _library.gnutls_openpgp_crt_import
788
openpgp_crt_import.argtypes = [openpgp_crt_t,
789
ctypes.POINTER(datum_t),
790
openpgp_crt_fmt_t]
791
openpgp_crt_import.restype = _error_code
792
793
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
794
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
795
ctypes.POINTER(ctypes.c_uint)]
796
openpgp_crt_verify_self.restype = _error_code
797
798
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
799
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
800
openpgp_crt_deinit.restype = None
801
802
openpgp_crt_get_fingerprint = (
803
_library.gnutls_openpgp_crt_get_fingerprint)
804
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
805
ctypes.c_void_p,
806
ctypes.POINTER(
807
ctypes.c_size_t)]
808
openpgp_crt_get_fingerprint.restype = _error_code
809
810
if check_version(b"3.6.4"):
811
certificate_type_get2 = _library.gnutls_certificate_type_get2
812
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
813
certificate_type_get2.restype = _error_code
814
815
# Remove non-public functions
816
del _error_code, _retry_on_error
817
818
819
def call_pipe(connection, # : multiprocessing.Connection
820
func, *args, **kwargs):
821
"""This function is meant to be called by multiprocessing.Process
822
823
This function runs func(*args, **kwargs), and writes the resulting
824
return value on the provided multiprocessing.Connection.
825
"""
826
connection.send(func(*args, **kwargs))
827
connection.close()
828
829
830
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):
831
276
"""A representation of a client host served by this server.
832
277
833
278
Attributes:
834
approved: bool(); 'None' if not yet approved/disapproved
279
_approved: bool(); 'None' if not yet approved/disapproved
835
280
approval_delay: datetime.timedelta(); Time to wait for approval
836
281
approval_duration: datetime.timedelta(); Duration of one approval
837
checker: multiprocessing.Process(); a running checker process used
838
to see if the client lives. 'None' if no process is
839
running.
840
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
841
286
checker_command: string; External command which is run to check
842
287
if client lives. %() expansions are done at
843
288
runtime with vars(self) as dict, so that for
844
289
instance %(name)s can be used in the command.
845
checker_initiator_tag: a GLib event source tag, or None
290
checker_initiator_tag: a gobject event source tag, or None
846
291
created: datetime.datetime(); (UTC) object creation
847
client_structure: Object describing what attributes a client has
848
and is used for storing the client at exit
849
292
current_checker_command: string; current running checker_command
850
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
851
295
enabled: bool()
852
296
fingerprint: string (40 or 32 hexadecimal digits); used to
853
uniquely identify an OpenPGP client
854
key_id: string (64 hexadecimal digits); used to uniquely identify
855
a client using raw public keys
297
uniquely identify the client
856
298
host: string; available for use by the checker command
857
299
interval: datetime.timedelta(); How often to start a new checker
858
300
last_approval_request: datetime.datetime(); (UTC) or None
859
301
last_checked_ok: datetime.datetime(); (UTC) or None
860
last_checker_status: integer between 0 and 255 reflecting exit
861
status of last checker. -1 reflects crashed
862
checker, -2 means no checker completed yet.
863
last_checker_signal: The signal which killed the last checker, if
864
last_checker_status is -1
865
last_enabled: datetime.datetime(); (UTC) or None
302
last_enabled: datetime.datetime(); (UTC)
866
303
name: string; from the config file, used in log messages and
867
304
D-Bus identifiers
868
305
secret: bytestring; sent verbatim (over TLS) to client
869
306
timeout: datetime.timedelta(); How long from last_checked_ok
870
307
until this client is disabled
871
extended_timeout: extra long timeout when secret has been sent
308
extended_timeout: extra long timeout when password has been sent
872
309
runtime_expansions: Allowed attributes for runtime expansion.
873
310
expires: datetime.datetime(); time (UTC) when a client will be
874
311
disabled, or None
875
server_settings: The server_settings dict from main()
876
312
"""
877
313
878
314
runtime_expansions = ("approval_delay", "approval_duration",
879
"created", "enabled", "expires", "key_id",
880
"fingerprint", "host", "interval",
881
"last_approval_request", "last_checked_ok",
315
"created", "enabled", "fingerprint",
316
"host", "interval", "last_checked_ok",
882
317
"last_enabled", "name", "timeout")
883
client_defaults = {
884
"timeout": "PT5M",
885
"extended_timeout": "PT15M",
886
"interval": "PT2M",
887
"checker": "fping -q -- %%(host)s",
888
"host": "",
889
"approval_delay": "PT0S",
890
"approval_duration": "PT1S",
891
"approved_by_default": "True",
892
"enabled": "True",
893
}
894
895
@staticmethod
896
def config_parser(config):
897
"""Construct a new dict of client settings of this form:
898
{ client_name: {setting_name: value, ...}, ...}
899
with exceptions for any special settings as defined above.
900
NOTE: Must be a pure function. Must return the same result
901
value given the same arguments.
902
"""
903
settings = {}
904
for client_name in config.sections():
905
section = dict(config.items(client_name))
906
client = settings[client_name] = {}
907
908
client["host"] = section["host"]
909
# Reformat values from string types to Python types
910
client["approved_by_default"] = config.getboolean(
911
client_name, "approved_by_default")
912
client["enabled"] = config.getboolean(client_name,
913
"enabled")
914
915
# Uppercase and remove spaces from key_id and fingerprint
916
# for later comparison purposes with return value from the
917
# key_id() and fingerprint() functions
918
client["key_id"] = (section.get("key_id", "").upper()
919
.replace(" ", ""))
920
client["fingerprint"] = (section["fingerprint"].upper()
921
.replace(" ", ""))
922
if "secret" in section:
923
client["secret"] = codecs.decode(section["secret"]
924
.encode("utf-8"),
925
"base64")
926
elif "secfile" in section:
927
with open(os.path.expanduser(os.path.expandvars
928
(section["secfile"])),
929
"rb") as secfile:
930
client["secret"] = secfile.read()
931
else:
932
raise TypeError("No secret or secfile for section {}"
933
.format(section))
934
client["timeout"] = string_to_delta(section["timeout"])
935
client["extended_timeout"] = string_to_delta(
936
section["extended_timeout"])
937
client["interval"] = string_to_delta(section["interval"])
938
client["approval_delay"] = string_to_delta(
939
section["approval_delay"])
940
client["approval_duration"] = string_to_delta(
941
section["approval_duration"])
942
client["checker_command"] = section["checker"]
943
client["last_approval_request"] = None
944
client["last_checked_ok"] = None
945
client["last_checker_status"] = -2
946
947
return settings
948
949
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."""
950
338
self.name = name
951
if server_settings is None:
952
server_settings = {}
953
self.server_settings = server_settings
954
# adding all client settings
955
for setting, value in settings.items():
956
setattr(self, setting, value)
957
958
if self.enabled:
959
if not hasattr(self, "last_enabled"):
960
self.last_enabled = datetime.datetime.utcnow()
961
if not hasattr(self, "expires"):
962
self.expires = (datetime.datetime.utcnow()
963
+ self.timeout)
964
else:
965
self.last_enabled = None
966
self.expires = None
967
339
if config is None:
340
config = {}
968
341
logger.debug("Creating client %r", self.name)
969
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(" ", ""))
970
347
logger.debug(" Fingerprint: %s", self.fingerprint)
971
self.created = settings.get("created",
972
datetime.datetime.utcnow())
973
974
# 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
975
369
self.checker = None
976
370
self.checker_initiator_tag = None
977
371
self.disable_initiator_tag = None
372
self.expires = None
978
373
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
979
375
self.current_checker_command = None
980
self.approved = None
376
self.last_connect = None
377
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
379
True)
981
380
self.approvals_pending = 0
982
self.changedstate = multiprocessing_manager.Condition(
983
multiprocessing_manager.Lock())
984
self.client_structure = [attr
985
for attr in self.__dict__.keys()
986
if not attr.startswith("_")]
987
self.client_structure.append("client_structure")
988
989
for name, t in inspect.getmembers(
990
type(self), lambda obj: isinstance(obj, property)):
991
if not name.startswith("_"):
992
self.client_structure.append(name)
993
994
# 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
995
389
def send_changedstate(self):
996
with self.changedstate:
997
self.changedstate.notify_all()
998
390
self.changedstate.acquire()
391
self.changedstate.notify_all()
392
self.changedstate.release()
393
999
394
def enable(self):
1000
395
"""Start this client's checker and timeout hooks"""
1001
396
if getattr(self, "enabled", False):
1002
397
# Already enabled
1003
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
1004
406
self.expires = datetime.datetime.utcnow() + self.timeout
407
self.disable_initiator_tag = (gobject.timeout_add
408
(self.timeout_milliseconds(),
409
self.disable))
1005
410
self.enabled = True
1006
411
self.last_enabled = datetime.datetime.utcnow()
1007
self.init_checker()
1008
self.send_changedstate()
1009
412
# Also start a new checker *right now*.
413
self.start_checker()
414
1010
415
def disable(self, quiet=True):
1011
416
"""Disable this client."""
1012
417
if not getattr(self, "enabled", False):
1013
418
return False
1014
419
if not quiet:
420
self.send_changedstate()
421
if not quiet:
1015
422
logger.info("Disabling client %s", self.name)
1016
if getattr(self, "disable_initiator_tag", None) is not None:
1017
GLib.source_remove(self.disable_initiator_tag)
423
if getattr(self, "disable_initiator_tag", False):
424
gobject.source_remove(self.disable_initiator_tag)
1018
425
self.disable_initiator_tag = None
1019
426
self.expires = None
1020
if getattr(self, "checker_initiator_tag", None) is not None:
1021
GLib.source_remove(self.checker_initiator_tag)
427
if getattr(self, "checker_initiator_tag", False):
428
gobject.source_remove(self.checker_initiator_tag)
1022
429
self.checker_initiator_tag = None
1023
430
self.stop_checker()
431
if self.disable_hook:
432
self.disable_hook(self)
1024
433
self.enabled = False
1025
if not quiet:
1026
self.send_changedstate()
1027
# 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
1028
435
return False
1029
436
1030
437
def __del__(self):
438
self.disable_hook = None
1031
439
self.disable()
1032
1033
def init_checker(self):
1034
# Schedule a new checker to be started an 'interval' from now,
1035
# and every interval from then on.
1036
if self.checker_initiator_tag is not None:
1037
GLib.source_remove(self.checker_initiator_tag)
1038
self.checker_initiator_tag = GLib.timeout_add(
1039
random.randrange(int(self.interval.total_seconds() * 1000
1040
+ 1)),
1041
self.start_checker)
1042
# Schedule a disable() when 'timeout' has passed
1043
if self.disable_initiator_tag is not None:
1044
GLib.source_remove(self.disable_initiator_tag)
1045
self.disable_initiator_tag = GLib.timeout_add(
1046
int(self.timeout.total_seconds() * 1000), self.disable)
1047
# Also start a new checker *right now*.
1048
self.start_checker()
1049
1050
def checker_callback(self, source, condition, connection,
1051
command):
440
441
def checker_callback(self, pid, condition, command):
1052
442
"""The checker has completed, so take appropriate actions."""
1053
# Read return code from connection (see call_pipe)
1054
returncode = connection.recv()
1055
connection.close()
1056
if self.checker is not None:
1057
self.checker.join()
1058
443
self.checker_callback_tag = None
1059
444
self.checker = None
1060
1061
if returncode >= 0:
1062
self.last_checker_status = returncode
1063
self.last_checker_signal = None
1064
if self.last_checker_status == 0:
445
if os.WIFEXITED(condition):
446
exitstatus = os.WEXITSTATUS(condition)
447
if exitstatus == 0:
1065
448
logger.info("Checker for %(name)s succeeded",
1066
449
vars(self))
1067
450
self.checked_ok()
1068
451
else:
1069
logger.info("Checker for %(name)s failed", vars(self))
452
logger.info("Checker for %(name)s failed",
453
vars(self))
1070
454
else:
1071
self.last_checker_status = -1
1072
self.last_checker_signal = -returncode
1073
455
logger.warning("Checker for %(name)s crashed?",
1074
456
vars(self))
1075
return False
1076
1077
def checked_ok(self):
1078
"""Assert that the client has been seen, alive and well."""
1079
self.last_checked_ok = datetime.datetime.utcnow()
1080
self.last_checker_status = 0
1081
self.last_checker_signal = None
1082
self.bump_timeout()
1083
1084
def bump_timeout(self, timeout=None):
1085
"""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
"""
1086
464
if timeout is None:
1087
465
timeout = self.timeout
466
self.last_checked_ok = datetime.datetime.utcnow()
1088
467
if self.disable_initiator_tag is not None:
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = None
468
gobject.source_remove(self.disable_initiator_tag)
1091
469
if getattr(self, "enabled", False):
1092
self.disable_initiator_tag = GLib.timeout_add(
1093
int(timeout.total_seconds() * 1000), self.disable)
470
self.disable_initiator_tag = (gobject.timeout_add
471
(_timedelta_to_milliseconds
472
(timeout), self.disable))
1094
473
self.expires = datetime.datetime.utcnow() + timeout
1095
474
1096
475
def need_approval(self):
1097
476
self.last_approval_request = datetime.datetime.utcnow()
1098
477
1099
478
def start_checker(self):
1100
479
"""Start a new checker subprocess if one is not running.
1101
480
1102
481
If a checker already exists, leave it running and do
1103
482
nothing."""
1104
483
# The reason for not killing a running checker is that if we
1105
# did that, and if a checker (for some reason) started running
1106
# slowly and taking more than 'interval' time, then the client
1107
# would inevitably timeout, since no checker would get a
1108
# 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
1109
488
# checkers alone, the checker would have to take more time
1110
489
# than 'timeout' for the client to be disabled, which is as it
1111
490
# should be.
1112
1113
if self.checker is not None and not self.checker.is_alive():
1114
logger.warning("Checker was not alive; joining")
1115
self.checker.join()
1116
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)
1117
505
# Start a new checker if needed
1118
506
if self.checker is None:
1119
# Escape attributes for the shell
1120
escaped_attrs = {
1121
attr: re.escape(str(getattr(self, attr)))
1122
for attr in self.runtime_expansions}
1123
507
try:
1124
command = self.checker_command % escaped_attrs
1125
except TypeError as error:
1126
logger.error('Could not format string "%s"',
1127
self.checker_command,
1128
exc_info=error)
1129
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
1130
526
self.current_checker_command = command
1131
logger.info("Starting checker %r for %s", command,
1132
self.name)
1133
# We don't need to redirect stdout and stderr, since
1134
# in normal mode, that is already done by daemon(),
1135
# and in debug mode we don't want to. (Stdin is
1136
# always replaced by /dev/null.)
1137
# The exception is when not debugging but nevertheless
1138
# running in the foreground; use the previously
1139
# created wnull.
1140
popen_args = {"close_fds": True,
1141
"shell": True,
1142
"cwd": "/"}
1143
if (not self.server_settings["debug"]
1144
and self.server_settings["foreground"]):
1145
popen_args.update({"stdout": wnull,
1146
"stderr": wnull})
1147
pipe = multiprocessing.Pipe(duplex=False)
1148
self.checker = multiprocessing.Process(
1149
target=call_pipe,
1150
args=(pipe[1], subprocess.call, command),
1151
kwargs=popen_args)
1152
self.checker.start()
1153
self.checker_callback_tag = GLib.io_add_watch(
1154
GLib.IOChannel.unix_new(pipe[0].fileno()),
1155
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1156
self.checker_callback, pipe[0], command)
1157
# 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
1158
551
return True
1159
552
1160
553
def stop_checker(self):
1161
554
"""Force the checker process, if any, to stop."""
1162
555
if self.checker_callback_tag:
1163
GLib.source_remove(self.checker_callback_tag)
556
gobject.source_remove(self.checker_callback_tag)
1164
557
self.checker_callback_tag = None
1165
558
if getattr(self, "checker", None) is None:
1166
559
return
1167
560
logger.debug("Stopping checker for %(name)s", vars(self))
1168
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
1169
569
self.checker = None
1170
570
1171
571
1172
def dbus_service_property(dbus_interface,
1173
signature="v",
1174
access="readwrite",
1175
byte_arrays=False):
572
def dbus_service_property(dbus_interface, signature="v",
573
access="readwrite", byte_arrays=False):
1176
574
"""Decorators for marking methods of a DBusObjectWithProperties to
1177
575
become properties on the D-Bus.
1178
576
1179
577
The decorated method will be called with no arguments by "Get"
1180
578
and with one argument by "Set".
1181
579
1182
580
The parameters, where they are supported, are the same as
1183
581
dbus.service.method, except there is only "signature", since the
1184
582
type from Get() and the type sent to Set() is the same.
1187
585
# "Set" method, so we fail early here:
1188
586
if byte_arrays and signature != "ay":
1189
587
raise ValueError("Byte arrays not supported for non-'ay'"
1190
" signature {!r}".format(signature))
1191
588
" signature %r" % signature)
1192
589
def decorator(func):
1193
590
func._dbus_is_property = True
1194
591
func._dbus_interface = dbus_interface
1197
594
func._dbus_name = func.__name__
1198
595
if func._dbus_name.endswith("_dbus_property"):
1199
596
func._dbus_name = func._dbus_name[:-14]
1200
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1201
return func
1202
1203
return decorator
1204
1205
1206
def dbus_interface_annotations(dbus_interface):
1207
"""Decorator for marking functions returning interface annotations
1208
1209
Usage:
1210
1211
@dbus_interface_annotations("org.example.Interface")
1212
def _foo(self): # Function name does not matter
1213
return {"org.freedesktop.DBus.Deprecated": "true",
1214
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1215
"false"}
1216
"""
1217
1218
def decorator(func):
1219
func._dbus_is_interface = True
1220
func._dbus_interface = dbus_interface
1221
func._dbus_name = dbus_interface
1222
return func
1223
1224
return decorator
1225
1226
1227
def dbus_annotations(annotations):
1228
"""Decorator to annotate D-Bus methods, signals or properties
1229
Usage:
1230
1231
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1232
"org.freedesktop.DBus.Property."
1233
"EmitsChangedSignal": "false"})
1234
@dbus_service_property("org.example.Interface", signature="b",
1235
access="r")
1236
def Property_dbus_property(self):
1237
return dbus.Boolean(False)
1238
1239
See also the DBusObjectWithAnnotations class.
1240
"""
1241
1242
def decorator(func):
1243
func._dbus_annotations = annotations
1244
return func
1245
597
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
598
return func
1246
599
return decorator
1247
600
1248
601
1249
602
class DBusPropertyException(dbus.exceptions.DBusException):
1250
603
"""A base class for D-Bus property-related exceptions
1251
604
"""
1252
pass
605
def __unicode__(self):
606
return unicode(str(self))
1253
607
1254
608
1255
609
class DBusPropertyAccessException(DBusPropertyException):
1264
618
pass
1265
619
1266
620
1267
class DBusObjectWithAnnotations(dbus.service.Object):
1268
"""A D-Bus object with annotations.
1269
1270
Classes inheriting from this can use the dbus_annotations
1271
decorator to add annotations to methods or signals.
1272
"""
1273
1274
@staticmethod
1275
def _is_dbus_thing(thing):
1276
"""Returns a function testing if an attribute is a D-Bus thing
1277
1278
If called like _is_dbus_thing("method") it returns a function
1279
suitable for use as predicate to inspect.getmembers().
1280
"""
1281
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1282
False)
1283
1284
def _get_all_dbus_things(self, thing):
1285
"""Returns a generator of (name, attribute) pairs
1286
"""
1287
return ((getattr(athing.__get__(self), "_dbus_name", name),
1288
athing.__get__(self))
1289
for cls in self.__class__.__mro__
1290
for name, athing in
1291
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1292
1293
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1294
out_signature="s",
1295
path_keyword='object_path',
1296
connection_keyword='connection')
1297
def Introspect(self, object_path, connection):
1298
"""Overloading of standard D-Bus method.
1299
1300
Inserts annotation tags on methods and signals.
1301
"""
1302
xmlstring = dbus.service.Object.Introspect(self, object_path,
1303
connection)
1304
try:
1305
document = xml.dom.minidom.parseString(xmlstring)
1306
1307
for if_tag in document.getElementsByTagName("interface"):
1308
# Add annotation tags
1309
for typ in ("method", "signal"):
1310
for tag in if_tag.getElementsByTagName(typ):
1311
annots = dict()
1312
for name, prop in (self.
1313
_get_all_dbus_things(typ)):
1314
if (name == tag.getAttribute("name")
1315
and prop._dbus_interface
1316
== if_tag.getAttribute("name")):
1317
annots.update(getattr(
1318
prop, "_dbus_annotations", {}))
1319
for name, value in annots.items():
1320
ann_tag = document.createElement(
1321
"annotation")
1322
ann_tag.setAttribute("name", name)
1323
ann_tag.setAttribute("value", value)
1324
tag.appendChild(ann_tag)
1325
# Add interface annotation tags
1326
for annotation, value in dict(
1327
itertools.chain.from_iterable(
1328
annotations().items()
1329
for name, annotations
1330
in self._get_all_dbus_things("interface")
1331
if name == if_tag.getAttribute("name")
1332
)).items():
1333
ann_tag = document.createElement("annotation")
1334
ann_tag.setAttribute("name", annotation)
1335
ann_tag.setAttribute("value", value)
1336
if_tag.appendChild(ann_tag)
1337
# Fix argument name for the Introspect method itself
1338
if (if_tag.getAttribute("name")
1339
== dbus.INTROSPECTABLE_IFACE):
1340
for cn in if_tag.getElementsByTagName("method"):
1341
if cn.getAttribute("name") == "Introspect":
1342
for arg in cn.getElementsByTagName("arg"):
1343
if (arg.getAttribute("direction")
1344
== "out"):
1345
arg.setAttribute("name",
1346
"xml_data")
1347
xmlstring = document.toxml("utf-8")
1348
document.unlink()
1349
except (AttributeError, xml.dom.DOMException,
1350
xml.parsers.expat.ExpatError) as error:
1351
logger.error("Failed to override Introspection method",
1352
exc_info=error)
1353
return xmlstring
1354
1355
1356
class DBusObjectWithProperties(DBusObjectWithAnnotations):
621
class DBusObjectWithProperties(dbus.service.Object):
1357
622
"""A D-Bus object with properties.
1358
623
1359
624
Classes inheriting from this can use the dbus_service_property
1360
625
decorator to expose methods as D-Bus properties. It exposes the
1361
626
standard Get(), Set(), and GetAll() methods on the D-Bus.
1362
627
"""
1363
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
1364
641
def _get_dbus_property(self, interface_name, property_name):
1365
642
"""Returns a bound method if one exists which is a D-Bus
1366
643
property with the specified name and interface.
1367
644
"""
1368
for cls in self.__class__.__mro__:
1369
for name, value in inspect.getmembers(
1370
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)):
1371
648
if (value._dbus_name == property_name
1372
649
and value._dbus_interface == interface_name):
1373
650
return value.__get__(self)
1374
651
1375
652
# No such property
1376
raise DBusPropertyNotFound("{}:{}.{}".format(
1377
self.dbus_object_path, interface_name, property_name))
1378
1379
@classmethod
1380
def _get_all_interface_names(cls):
1381
"""Get a sequence of all interfaces supported by an object"""
1382
return (name for name in set(getattr(getattr(x, attr),
1383
"_dbus_interface", None)
1384
for x in (inspect.getmro(cls))
1385
for attr in dir(x))
1386
if name is not None)
1387
1388
@dbus.service.method(dbus.PROPERTIES_IFACE,
1389
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",
1390
658
out_signature="v")
1391
659
def Get(self, interface_name, property_name):
1392
660
"""Standard D-Bus property Get() method, see D-Bus standard.
1398
666
if not hasattr(value, "variant_level"):
1399
667
return value
1400
668
return type(value)(value, variant_level=value.variant_level+1)
1401
669
1402
670
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1403
671
def Set(self, interface_name, property_name, value):
1404
672
"""Standard D-Bus property Set() method, see D-Bus standard.
1410
678
# The byte_arrays option is not supported yet on
1411
679
# signatures other than "ay".
1412
680
if prop._dbus_signature != "ay":
1413
raise ValueError("Byte arrays not supported for non-"
1414
"'ay' signature {!r}"
1415
.format(prop._dbus_signature))
1416
value = dbus.ByteArray(bytes(value))
681
raise ValueError
682
value = dbus.ByteArray(''.join(unichr(byte)
683
for byte in value))
1417
684
prop(value)
1418
1419
@dbus.service.method(dbus.PROPERTIES_IFACE,
1420
in_signature="s",
685
686
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1421
687
out_signature="a{sv}")
1422
688
def GetAll(self, interface_name):
1423
689
"""Standard D-Bus property GetAll() method, see D-Bus
1424
690
standard.
1425
691
1426
692
Note: Will not include properties with access="write".
1427
693
"""
1428
properties = {}
1429
for name, prop in self._get_all_dbus_things("property"):
694
all = {}
695
for name, prop in self._get_all_dbus_properties():
1430
696
if (interface_name
1431
697
and interface_name != prop._dbus_interface):
1432
698
# Interface non-empty but did not match
1436
702
continue
1437
703
value = prop()
1438
704
if not hasattr(value, "variant_level"):
1439
properties[name] = value
705
all[name] = value
1440
706
continue
1441
properties[name] = type(value)(
1442
value, variant_level=value.variant_level + 1)
1443
return dbus.Dictionary(properties, signature="sv")
1444
1445
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1446
def PropertiesChanged(self, interface_name, changed_properties,
1447
invalidated_properties):
1448
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1449
standard.
1450
"""
1451
pass
1452
707
all[name] = type(value)(value, variant_level=
708
value.variant_level+1)
709
return dbus.Dictionary(all, signature="sv")
710
1453
711
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1454
712
out_signature="s",
1455
713
path_keyword='object_path',
1456
714
connection_keyword='connection')
1457
715
def Introspect(self, object_path, connection):
1458
"""Overloading of standard D-Bus method.
1459
1460
Inserts property tags and interface annotation tags.
716
"""Standard D-Bus method, overloaded to insert property tags.
1461
717
"""
1462
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1463
object_path,
1464
connection)
718
xmlstring = dbus.service.Object.Introspect(self, object_path,
719
connection)
1465
720
try:
1466
721
document = xml.dom.minidom.parseString(xmlstring)
1467
1468
722
def make_tag(document, name, prop):
1469
723
e = document.createElement("property")
1470
724
e.setAttribute("name", name)
1471
725
e.setAttribute("type", prop._dbus_signature)
1472
726
e.setAttribute("access", prop._dbus_access)
1473
727
return e
1474
1475
728
for if_tag in document.getElementsByTagName("interface"):
1476
# Add property tags
1477
729
for tag in (make_tag(document, name, prop)
1478
730
for name, prop
1479
in self._get_all_dbus_things("property")
731
in self._get_all_dbus_properties()
1480
732
if prop._dbus_interface
1481
733
== if_tag.getAttribute("name")):
1482
734
if_tag.appendChild(tag)
1483
# Add annotation tags for properties
1484
for tag in if_tag.getElementsByTagName("property"):
1485
annots = dict()
1486
for name, prop in self._get_all_dbus_things(
1487
"property"):
1488
if (name == tag.getAttribute("name")
1489
and prop._dbus_interface
1490
== if_tag.getAttribute("name")):
1491
annots.update(getattr(
1492
prop, "_dbus_annotations", {}))
1493
for name, value in annots.items():
1494
ann_tag = document.createElement(
1495
"annotation")
1496
ann_tag.setAttribute("name", name)
1497
ann_tag.setAttribute("value", value)
1498
tag.appendChild(ann_tag)
1499
735
# Add the names to the return values for the
1500
736
# "org.freedesktop.DBus.Properties" methods
1501
737
if (if_tag.getAttribute("name")
1516
752
except (AttributeError, xml.dom.DOMException,
1517
753
xml.parsers.expat.ExpatError) as error:
1518
754
logger.error("Failed to override Introspection method",
1519
exc_info=error)
1520
return xmlstring
1521
1522
1523
try:
1524
dbus.OBJECT_MANAGER_IFACE
1525
except AttributeError:
1526
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1527
1528
1529
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1530
"""A D-Bus object with an ObjectManager.
1531
1532
Classes inheriting from this exposes the standard
1533
GetManagedObjects call and the InterfacesAdded and
1534
InterfacesRemoved signals on the standard
1535
"org.freedesktop.DBus.ObjectManager" interface.
1536
1537
Note: No signals are sent automatically; they must be sent
1538
manually.
1539
"""
1540
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1541
out_signature="a{oa{sa{sv}}}")
1542
def GetManagedObjects(self):
1543
"""This function must be overridden"""
1544
raise NotImplementedError()
1545
1546
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1547
signature="oa{sa{sv}}")
1548
def InterfacesAdded(self, object_path, interfaces_and_properties):
1549
pass
1550
1551
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1552
def InterfacesRemoved(self, object_path, interfaces):
1553
pass
1554
1555
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1556
out_signature="s",
1557
path_keyword='object_path',
1558
connection_keyword='connection')
1559
def Introspect(self, object_path, connection):
1560
"""Overloading of standard D-Bus method.
1561
1562
Override return argument name of GetManagedObjects to be
1563
"objpath_interfaces_and_properties"
1564
"""
1565
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1566
object_path,
1567
connection)
1568
try:
1569
document = xml.dom.minidom.parseString(xmlstring)
1570
1571
for if_tag in document.getElementsByTagName("interface"):
1572
# Fix argument name for the GetManagedObjects method
1573
if (if_tag.getAttribute("name")
1574
== dbus.OBJECT_MANAGER_IFACE):
1575
for cn in if_tag.getElementsByTagName("method"):
1576
if (cn.getAttribute("name")
1577
== "GetManagedObjects"):
1578
for arg in cn.getElementsByTagName("arg"):
1579
if (arg.getAttribute("direction")
1580
== "out"):
1581
arg.setAttribute(
1582
"name",
1583
"objpath_interfaces"
1584
"_and_properties")
1585
xmlstring = document.toxml("utf-8")
1586
document.unlink()
1587
except (AttributeError, xml.dom.DOMException,
1588
xml.parsers.expat.ExpatError) as error:
1589
logger.error("Failed to override Introspection method",
1590
exc_info=error)
1591
return xmlstring
1592
1593
1594
def datetime_to_dbus(dt, variant_level=0):
755
error)
756
return xmlstring
757
758
759
def datetime_to_dbus (dt, variant_level=0):
1595
760
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1596
761
if dt is None:
1597
return dbus.String("", variant_level=variant_level)
1598
return dbus.String(dt.isoformat(), variant_level=variant_level)
1599
1600
1601
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1602
"""A class decorator; applied to a subclass of
1603
dbus.service.Object, it will add alternate D-Bus attributes with
1604
interface names according to the "alt_interface_names" mapping.
1605
Usage:
1606
1607
@alternate_dbus_interfaces({"org.example.Interface":
1608
"net.example.AlternateInterface"})
1609
class SampleDBusObject(dbus.service.Object):
1610
@dbus.service.method("org.example.Interface")
1611
def SampleDBusMethod():
1612
pass
1613
1614
The above "SampleDBusMethod" on "SampleDBusObject" will be
1615
reachable via two interfaces: "org.example.Interface" and
1616
"net.example.AlternateInterface", the latter of which will have
1617
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1618
"true", unless "deprecate" is passed with a False value.
1619
1620
This works for methods and signals, and also for D-Bus properties
1621
(from DBusObjectWithProperties) and interfaces (from the
1622
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.
1623
770
"""
1624
1625
def wrapper(cls):
1626
for orig_interface_name, alt_interface_name in (
1627
alt_interface_names.items()):
1628
attr = {}
1629
interface_names = set()
1630
# Go though all attributes of the class
1631
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):
1632
778
# Ignore non-D-Bus attributes, and D-Bus attributes
1633
779
# with the wrong interface name
1634
780
if (not hasattr(attribute, "_dbus_interface")
1635
or not attribute._dbus_interface.startswith(
1636
orig_interface_name)):
781
or not attribute._dbus_interface
782
.startswith("se.recompile.Mandos")):
1637
783
continue
1638
784
# Create an alternate D-Bus interface name based on
1639
785
# the current name
1640
alt_interface = attribute._dbus_interface.replace(
1641
orig_interface_name, alt_interface_name)
1642
interface_names.add(alt_interface)
786
alt_interface = (attribute._dbus_interface
787
.replace("se.recompile.Mandos",
788
"se.bsnet.fukt.Mandos"))
1643
789
# Is this a D-Bus signal?
1644
790
if getattr(attribute, "_dbus_is_signal", False):
1645
# Extract the original non-method undecorated
1646
# function by black magic
1647
if sys.version_info.major == 2:
1648
nonmethod_func = (dict(
791
# Extract the original non-method function by
792
# black magic
793
nonmethod_func = (dict(
1649
794
zip(attribute.func_code.co_freevars,
1650
attribute.__closure__))
1651
["func"].cell_contents)
1652
else:
1653
nonmethod_func = (dict(
1654
zip(attribute.__code__.co_freevars,
1655
attribute.__closure__))
1656
["func"].cell_contents)
795
attribute.__closure__))["func"]
796
.cell_contents)
1657
797
# Create a new, but exactly alike, function
1658
798
# object, and decorate it to be a new D-Bus signal
1659
799
# with the alternate D-Bus interface name
1660
new_function = copy_function(nonmethod_func)
1661
new_function = (dbus.service.signal(
1662
alt_interface,
1663
attribute._dbus_signature)(new_function))
1664
# Copy annotations, if any
1665
try:
1666
new_function._dbus_annotations = dict(
1667
attribute._dbus_annotations)
1668
except AttributeError:
1669
pass
1670
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)))
1671
809
# Define a creator of a function to call both the
1672
# original and alternate functions, so both the
1673
# original and alternate signals gets sent when
1674
# the function is called
810
# old and new functions, so both the old and new
811
# signals gets sent when the function is called
1675
812
def fixscope(func1, func2):
1676
813
"""This function is a scope container to pass
1677
814
func1 and func2 to the "call_both" function
1678
815
outside of its arguments"""
1679
1680
@functools.wraps(func2)
1681
816
def call_both(*args, **kwargs):
1682
817
"""This function will emit two D-Bus
1683
818
signals by calling func1 and func2"""
1684
819
func1(*args, **kwargs)
1685
820
func2(*args, **kwargs)
1686
# Make wrapper function look like a D-Bus
1687
# signal
1688
for name, attr in inspect.getmembers(func2):
1689
if name.startswith("_dbus_"):
1690
setattr(call_both, name, attr)
1691
1692
821
return call_both
1693
822
# Create the "call_both" function and add it to
1694
823
# the class
1695
attr[attrname] = fixscope(attribute, new_function)
824
attr[attrname] = fixscope(attribute,
825
new_function)
1696
826
# Is this a D-Bus method?
1697
827
elif getattr(attribute, "_dbus_is_method", False):
1698
828
# Create a new, but exactly alike, function
1699
829
# object. Decorate it to be a new D-Bus method
1700
830
# with the alternate D-Bus interface name. Add it
1701
831
# to the class.
1702
attr[attrname] = (
1703
dbus.service.method(
1704
alt_interface,
1705
attribute._dbus_in_signature,
1706
attribute._dbus_out_signature)
1707
(copy_function(attribute)))
1708
# Copy annotations, if any
1709
try:
1710
attr[attrname]._dbus_annotations = dict(
1711
attribute._dbus_annotations)
1712
except AttributeError:
1713
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)))
1714
842
# Is this a D-Bus property?
1715
843
elif getattr(attribute, "_dbus_is_property", False):
1716
844
# Create a new, but exactly alike, function
1717
845
# object, and decorate it to be a new D-Bus
1718
846
# property with the alternate D-Bus interface
1719
847
# name. Add it to the class.
1720
attr[attrname] = (dbus_service_property(
1721
alt_interface, attribute._dbus_signature,
1722
attribute._dbus_access,
1723
attribute._dbus_get_args_options
1724
["byte_arrays"])
1725
(copy_function(attribute)))
1726
# Copy annotations, if any
1727
try:
1728
attr[attrname]._dbus_annotations = dict(
1729
attribute._dbus_annotations)
1730
except AttributeError:
1731
pass
1732
# Is this a D-Bus interface?
1733
elif getattr(attribute, "_dbus_is_interface", False):
1734
# Create a new, but exactly alike, function
1735
# object. Decorate it to be a new D-Bus interface
1736
# with the alternate D-Bus interface name. Add it
1737
# to the class.
1738
attr[attrname] = (
1739
dbus_interface_annotations(alt_interface)
1740
(copy_function(attribute)))
1741
if deprecate:
1742
# Deprecate all alternate interfaces
1743
iname = "_AlternateDBusNames_interface_annotation{}"
1744
for interface_name in interface_names:
1745
1746
@dbus_interface_annotations(interface_name)
1747
def func(self):
1748
return {"org.freedesktop.DBus.Deprecated":
1749
"true"}
1750
# Find an unused name
1751
for aname in (iname.format(i)
1752
for i in itertools.count()):
1753
if aname not in attr:
1754
attr[aname] = func
1755
break
1756
if interface_names:
1757
# Replace the class with a new subclass of it with
1758
# methods, signals, etc. as created above.
1759
if sys.version_info.major == 2:
1760
cls = type(b"{}Alternate".format(cls.__name__),
1761
(cls, ), attr)
1762
else:
1763
cls = type("{}Alternate".format(cls.__name__),
1764
(cls, ), attr)
1765
return cls
1766
1767
return wrapper
1768
1769
1770
@alternate_dbus_interfaces({"se.recompile.Mandos":
1771
"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
1772
863
class ClientDBus(Client, DBusObjectWithProperties):
1773
864
"""A Client class using D-Bus
1774
865
1775
866
Attributes:
1776
867
dbus_object_path: dbus.ObjectPath
1777
868
bus: dbus.SystemBus()
1778
869
"""
1779
870
1780
871
runtime_expansions = (Client.runtime_expansions
1781
+ ("dbus_object_path", ))
1782
1783
_interface = "se.recompile.Mandos.Client"
1784
872
+ ("dbus_object_path",))
873
1785
874
# dbus.service.Object doesn't use super(), so we can't either.
1786
1787
def __init__(self, bus=None, *args, **kwargs):
875
876
def __init__(self, bus = None, *args, **kwargs):
877
self._approvals_pending = 0
1788
878
self.bus = bus
1789
879
Client.__init__(self, *args, **kwargs)
1790
880
# Only now, when this client is initialized, can it show up on
1791
881
# the D-Bus
1792
client_object_name = str(self.name).translate(
882
client_object_name = unicode(self.name).translate(
1793
883
{ord("."): ord("_"),
1794
884
ord("-"): ord("_")})
1795
self.dbus_object_path = dbus.ObjectPath(
1796
"/clients/" + client_object_name)
885
self.dbus_object_path = (dbus.ObjectPath
886
("/clients/" + client_object_name))
1797
887
DBusObjectWithProperties.__init__(self, self.bus,
1798
888
self.dbus_object_path)
1799
1800
def notifychangeproperty(transform_func, dbus_name,
1801
type_func=lambda x: x,
1802
variant_level=1,
1803
invalidate_only=False,
1804
_interface=_interface):
889
890
def notifychangeproperty(transform_func,
891
dbus_name, type_func=lambda x: x,
892
variant_level=1):
1805
893
""" Modify a variable so that it's a property which announces
1806
894
its changes to DBus.
1807
895
1812
900
to the D-Bus. Default: no transform
1813
901
variant_level: D-Bus variant level. Default: 1
1814
902
"""
1815
attrname = "_{}".format(dbus_name)
1816
903
attrname = "_{0}".format(dbus_name)
1817
904
def setter(self, value):
1818
905
if hasattr(self, "dbus_object_path"):
1819
906
if (not hasattr(self, attrname) or
1820
907
type_func(getattr(self, attrname, None))
1821
908
!= type_func(value)):
1822
if invalidate_only:
1823
self.PropertiesChanged(
1824
_interface, dbus.Dictionary(),
1825
dbus.Array((dbus_name, )))
1826
else:
1827
dbus_value = transform_func(
1828
type_func(value),
1829
variant_level=variant_level)
1830
self.PropertyChanged(dbus.String(dbus_name),
1831
dbus_value)
1832
self.PropertiesChanged(
1833
_interface,
1834
dbus.Dictionary({dbus.String(dbus_name):
1835
dbus_value}),
1836
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)
1837
914
setattr(self, attrname, value)
1838
915
1839
916
return property(lambda self: getattr(self, attrname), setter)
1840
917
918
1841
919
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1842
920
approvals_pending = notifychangeproperty(dbus.Boolean,
1843
921
"ApprovalPending",
1844
type_func=bool)
922
type_func = bool)
1845
923
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1846
924
last_enabled = notifychangeproperty(datetime_to_dbus,
1847
925
"LastEnabled")
1848
checker = notifychangeproperty(
1849
dbus.Boolean, "CheckerRunning",
1850
type_func=lambda checker: checker is not None)
926
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
927
type_func = lambda checker:
928
checker is not None)
1851
929
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1852
930
"LastCheckedOK")
1853
last_checker_status = notifychangeproperty(dbus.Int16,
1854
"LastCheckerStatus")
1855
931
last_approval_request = notifychangeproperty(
1856
932
datetime_to_dbus, "LastApprovalRequest")
1857
933
approved_by_default = notifychangeproperty(dbus.Boolean,
1858
934
"ApprovedByDefault")
1859
approval_delay = notifychangeproperty(
1860
dbus.UInt64, "ApprovalDelay",
1861
type_func=lambda td: td.total_seconds() * 1000)
935
approval_delay = notifychangeproperty(dbus.UInt16,
936
"ApprovalDelay",
937
type_func =
938
_timedelta_to_milliseconds)
1862
939
approval_duration = notifychangeproperty(
1863
dbus.UInt64, "ApprovalDuration",
1864
type_func=lambda td: td.total_seconds() * 1000)
940
dbus.UInt16, "ApprovalDuration",
941
type_func = _timedelta_to_milliseconds)
1865
942
host = notifychangeproperty(dbus.String, "Host")
1866
timeout = notifychangeproperty(
1867
dbus.UInt64, "Timeout",
1868
type_func=lambda td: td.total_seconds() * 1000)
943
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
944
type_func =
945
_timedelta_to_milliseconds)
1869
946
extended_timeout = notifychangeproperty(
1870
dbus.UInt64, "ExtendedTimeout",
1871
type_func=lambda td: td.total_seconds() * 1000)
1872
interval = notifychangeproperty(
1873
dbus.UInt64, "Interval",
1874
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)
1875
953
checker_command = notifychangeproperty(dbus.String, "Checker")
1876
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1877
invalidate_only=True)
1878
954
1879
955
del notifychangeproperty
1880
956
1881
957
def __del__(self, *args, **kwargs):
1882
958
try:
1883
959
self.remove_from_connection()
1886
962
if hasattr(DBusObjectWithProperties, "__del__"):
1887
963
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1888
964
Client.__del__(self, *args, **kwargs)
1889
1890
def checker_callback(self, source, condition,
1891
connection, command, *args, **kwargs):
1892
ret = Client.checker_callback(self, source, condition,
1893
connection, command, *args,
1894
**kwargs)
1895
exitstatus = self.last_checker_status
1896
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)
1897
972
# Emit D-Bus signal
1898
973
self.CheckerCompleted(dbus.Int16(exitstatus),
1899
# This is specific to GNU libC
1900
dbus.Int64(exitstatus << 8),
974
dbus.Int64(condition),
1901
975
dbus.String(command))
1902
976
else:
1903
977
# Emit D-Bus signal
1904
978
self.CheckerCompleted(dbus.Int16(-1),
1905
dbus.Int64(
1906
# This is specific to GNU libC
1907
(exitstatus << 8)
1908
| self.last_checker_signal),
979
dbus.Int64(condition),
1909
980
dbus.String(command))
1910
return ret
1911
981
982
return Client.checker_callback(self, pid, condition, command,
983
*args, **kwargs)
984
1912
985
def start_checker(self, *args, **kwargs):
1913
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
1914
991
r = Client.start_checker(self, *args, **kwargs)
1915
992
# Only if new checker process was started
1916
993
if (self.checker is not None
1918
995
# Emit D-Bus signal
1919
996
self.CheckerStarted(self.current_checker_command)
1920
997
return r
1921
998
1922
999
def _reset_approved(self):
1923
self.approved = None
1000
self._approved = None
1924
1001
return False
1925
1002
1926
1003
def approve(self, value=True):
1927
self.approved = value
1928
GLib.timeout_add(int(self.approval_duration.total_seconds()
1929
* 1000), self._reset_approved)
1930
1004
self.send_changedstate()
1931
1932
# D-Bus methods, signals & properties
1933
1934
# Interfaces
1935
1936
# Signals
1937
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
1938
1016
# CheckerCompleted - signal
1939
1017
@dbus.service.signal(_interface, signature="nxs")
1940
1018
def CheckerCompleted(self, exitcode, waitstatus, command):
1941
1019
"D-Bus signal"
1942
1020
pass
1943
1021
1944
1022
# CheckerStarted - signal
1945
1023
@dbus.service.signal(_interface, signature="s")
1946
1024
def CheckerStarted(self, command):
1947
1025
"D-Bus signal"
1948
1026
pass
1949
1027
1950
1028
# PropertyChanged - signal
1951
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1952
1029
@dbus.service.signal(_interface, signature="sv")
1953
1030
def PropertyChanged(self, property, value):
1954
1031
"D-Bus signal"
1955
1032
pass
1956
1033
1957
1034
# GotSecret - signal
1958
1035
@dbus.service.signal(_interface)
1959
1036
def GotSecret(self):
1962
1039
server to mandos-client
1963
1040
"""
1964
1041
pass
1965
1042
1966
1043
# Rejected - signal
1967
1044
@dbus.service.signal(_interface, signature="s")
1968
1045
def Rejected(self, reason):
1969
1046
"D-Bus signal"
1970
1047
pass
1971
1048
1972
1049
# NeedApproval - signal
1973
1050
@dbus.service.signal(_interface, signature="tb")
1974
1051
def NeedApproval(self, timeout, default):
1975
1052
"D-Bus signal"
1976
1053
return self.need_approval()
1977
1978
# Methods
1979
1054
1055
## Methods
1056
1980
1057
# Approve - method
1981
1058
@dbus.service.method(_interface, in_signature="b")
1982
1059
def Approve(self, value):
1983
1060
self.approve(value)
1984
1061
1985
1062
# CheckedOK - method
1986
1063
@dbus.service.method(_interface)
1987
1064
def CheckedOK(self):
1988
1065
self.checked_ok()
1989
1066
1990
1067
# Enable - method
1991
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1992
1068
@dbus.service.method(_interface)
1993
1069
def Enable(self):
1994
1070
"D-Bus method"
1995
1071
self.enable()
1996
1072
1997
1073
# StartChecker - method
1998
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1999
1074
@dbus.service.method(_interface)
2000
1075
def StartChecker(self):
2001
1076
"D-Bus method"
2002
1077
self.start_checker()
2003
1078
2004
1079
# Disable - method
2005
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2006
1080
@dbus.service.method(_interface)
2007
1081
def Disable(self):
2008
1082
"D-Bus method"
2009
1083
self.disable()
2010
1084
2011
1085
# StopChecker - method
2012
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2013
1086
@dbus.service.method(_interface)
2014
1087
def StopChecker(self):
2015
1088
self.stop_checker()
2016
2017
# Properties
2018
1089
1090
## Properties
1091
2019
1092
# ApprovalPending - property
2020
1093
@dbus_service_property(_interface, signature="b", access="read")
2021
1094
def ApprovalPending_dbus_property(self):
2022
1095
return dbus.Boolean(bool(self.approvals_pending))
2023
1096
2024
1097
# ApprovedByDefault - property
2025
@dbus_service_property(_interface,
2026
signature="b",
1098
@dbus_service_property(_interface, signature="b",
2027
1099
access="readwrite")
2028
1100
def ApprovedByDefault_dbus_property(self, value=None):
2029
1101
if value is None: # get
2030
1102
return dbus.Boolean(self.approved_by_default)
2031
1103
self.approved_by_default = bool(value)
2032
1104
2033
1105
# ApprovalDelay - property
2034
@dbus_service_property(_interface,
2035
signature="t",
1106
@dbus_service_property(_interface, signature="t",
2036
1107
access="readwrite")
2037
1108
def ApprovalDelay_dbus_property(self, value=None):
2038
1109
if value is None: # get
2039
return dbus.UInt64(self.approval_delay.total_seconds()
2040
* 1000)
1110
return dbus.UInt64(self.approval_delay_milliseconds())
2041
1111
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2042
1112
2043
1113
# ApprovalDuration - property
2044
@dbus_service_property(_interface,
2045
signature="t",
1114
@dbus_service_property(_interface, signature="t",
2046
1115
access="readwrite")
2047
1116
def ApprovalDuration_dbus_property(self, value=None):
2048
1117
if value is None: # get
2049
return dbus.UInt64(self.approval_duration.total_seconds()
2050
* 1000)
1118
return dbus.UInt64(_timedelta_to_milliseconds(
1119
self.approval_duration))
2051
1120
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2052
1121
2053
1122
# Name - property
2054
@dbus_annotations(
2055
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2056
1123
@dbus_service_property(_interface, signature="s", access="read")
2057
1124
def Name_dbus_property(self):
2058
1125
return dbus.String(self.name)
2059
2060
# KeyID - property
2061
@dbus_annotations(
2062
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2063
@dbus_service_property(_interface, signature="s", access="read")
2064
def KeyID_dbus_property(self):
2065
return dbus.String(self.key_id)
2066
1126
2067
1127
# Fingerprint - property
2068
@dbus_annotations(
2069
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2070
1128
@dbus_service_property(_interface, signature="s", access="read")
2071
1129
def Fingerprint_dbus_property(self):
2072
1130
return dbus.String(self.fingerprint)
2073
1131
2074
1132
# Host - property
2075
@dbus_service_property(_interface,
2076
signature="s",
1133
@dbus_service_property(_interface, signature="s",
2077
1134
access="readwrite")
2078
1135
def Host_dbus_property(self, value=None):
2079
1136
if value is None: # get
2080
1137
return dbus.String(self.host)
2081
self.host = str(value)
2082
1138
self.host = value
1139
2083
1140
# Created - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
1141
@dbus_service_property(_interface, signature="s", access="read")
2087
1142
def Created_dbus_property(self):
2088
return datetime_to_dbus(self.created)
2089
1143
return dbus.String(datetime_to_dbus(self.created))
1144
2090
1145
# LastEnabled - property
2091
1146
@dbus_service_property(_interface, signature="s", access="read")
2092
1147
def LastEnabled_dbus_property(self):
2093
1148
return datetime_to_dbus(self.last_enabled)
2094
1149
2095
1150
# Enabled - property
2096
@dbus_service_property(_interface,
2097
signature="b",
1151
@dbus_service_property(_interface, signature="b",
2098
1152
access="readwrite")
2099
1153
def Enabled_dbus_property(self, value=None):
2100
1154
if value is None: # get
2103
1157
self.enable()
2104
1158
else:
2105
1159
self.disable()
2106
1160
2107
1161
# LastCheckedOK - property
2108
@dbus_service_property(_interface,
2109
signature="s",
1162
@dbus_service_property(_interface, signature="s",
2110
1163
access="readwrite")
2111
1164
def LastCheckedOK_dbus_property(self, value=None):
2112
1165
if value is not None:
2113
1166
self.checked_ok()
2114
1167
return
2115
1168
return datetime_to_dbus(self.last_checked_ok)
2116
2117
# LastCheckerStatus - property
2118
@dbus_service_property(_interface, signature="n", access="read")
2119
def LastCheckerStatus_dbus_property(self):
2120
return dbus.Int16(self.last_checker_status)
2121
1169
2122
1170
# Expires - property
2123
1171
@dbus_service_property(_interface, signature="s", access="read")
2124
1172
def Expires_dbus_property(self):
2125
1173
return datetime_to_dbus(self.expires)
2126
1174
2127
1175
# LastApprovalRequest - property
2128
1176
@dbus_service_property(_interface, signature="s", access="read")
2129
1177
def LastApprovalRequest_dbus_property(self):
2130
1178
return datetime_to_dbus(self.last_approval_request)
2131
1179
2132
1180
# Timeout - property
2133
@dbus_service_property(_interface,
2134
signature="t",
1181
@dbus_service_property(_interface, signature="t",
2135
1182
access="readwrite")
2136
1183
def Timeout_dbus_property(self, value=None):
2137
1184
if value is None: # get
2138
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2139
old_timeout = self.timeout
1185
return dbus.UInt64(self.timeout_milliseconds())
2140
1186
self.timeout = datetime.timedelta(0, 0, 0, value)
2141
# Reschedule disabling
2142
if self.enabled:
2143
now = datetime.datetime.utcnow()
2144
self.expires += self.timeout - old_timeout
2145
if self.expires <= now:
2146
# The timeout has passed
2147
self.disable()
2148
else:
2149
if (getattr(self, "disable_initiator_tag", None)
2150
is None):
2151
return
2152
GLib.source_remove(self.disable_initiator_tag)
2153
self.disable_initiator_tag = GLib.timeout_add(
2154
int((self.expires - now).total_seconds() * 1000),
2155
self.disable)
2156
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
2157
1208
# ExtendedTimeout - property
2158
@dbus_service_property(_interface,
2159
signature="t",
1209
@dbus_service_property(_interface, signature="t",
2160
1210
access="readwrite")
2161
1211
def ExtendedTimeout_dbus_property(self, value=None):
2162
1212
if value is None: # get
2163
return dbus.UInt64(self.extended_timeout.total_seconds()
2164
* 1000)
1213
return dbus.UInt64(self.extended_timeout_milliseconds())
2165
1214
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2166
1215
2167
1216
# Interval - property
2168
@dbus_service_property(_interface,
2169
signature="t",
1217
@dbus_service_property(_interface, signature="t",
2170
1218
access="readwrite")
2171
1219
def Interval_dbus_property(self, value=None):
2172
1220
if value is None: # get
2173
return dbus.UInt64(self.interval.total_seconds() * 1000)
1221
return dbus.UInt64(self.interval_milliseconds())
2174
1222
self.interval = datetime.timedelta(0, 0, 0, value)
2175
1223
if getattr(self, "checker_initiator_tag", None) is None:
2176
1224
return
2177
if self.enabled:
2178
# Reschedule checker run
2179
GLib.source_remove(self.checker_initiator_tag)
2180
self.checker_initiator_tag = GLib.timeout_add(
2181
value, self.start_checker)
2182
self.start_checker() # Start one now, too
2183
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
2184
1231
# Checker - property
2185
@dbus_service_property(_interface,
2186
signature="s",
1232
@dbus_service_property(_interface, signature="s",
2187
1233
access="readwrite")
2188
1234
def Checker_dbus_property(self, value=None):
2189
1235
if value is None: # get
2190
1236
return dbus.String(self.checker_command)
2191
self.checker_command = str(value)
2192
1237
self.checker_command = value
1238
2193
1239
# CheckerRunning - property
2194
@dbus_service_property(_interface,
2195
signature="b",
1240
@dbus_service_property(_interface, signature="b",
2196
1241
access="readwrite")
2197
1242
def CheckerRunning_dbus_property(self, value=None):
2198
1243
if value is None: # get
2201
1246
self.start_checker()
2202
1247
else:
2203
1248
self.stop_checker()
2204
1249
2205
1250
# ObjectPath - property
2206
@dbus_annotations(
2207
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2208
"org.freedesktop.DBus.Deprecated": "true"})
2209
1251
@dbus_service_property(_interface, signature="o", access="read")
2210
1252
def ObjectPath_dbus_property(self):
2211
return self.dbus_object_path # is already a dbus.ObjectPath
2212
1253
return self.dbus_object_path # is already a dbus.ObjectPath
1254
2213
1255
# Secret = property
2214
@dbus_annotations(
2215
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2216
"invalidates"})
2217
@dbus_service_property(_interface,
2218
signature="ay",
2219
access="write",
2220
byte_arrays=True)
1256
@dbus_service_property(_interface, signature="ay",
1257
access="write", byte_arrays=True)
2221
1258
def Secret_dbus_property(self, value):
2222
self.secret = bytes(value)
2223
1259
self.secret = str(value)
1260
2224
1261
del _interface
2225
1262
2226
1263
2227
class ProxyClient:
2228
def __init__(self, child_pipe, key_id, fpr, address):
1264
class ProxyClient(object):
1265
def __init__(self, child_pipe, fpr, address):
2229
1266
self._pipe = child_pipe
2230
self._pipe.send(('init', key_id, fpr, address))
1267
self._pipe.send(('init', fpr, address))
2231
1268
if not self._pipe.recv():
2232
raise KeyError(key_id or fpr)
2233
1269
raise KeyError()
1270
2234
1271
def __getattribute__(self, name):
2235
if name == '_pipe':
1272
if(name == '_pipe'):
2236
1273
return super(ProxyClient, self).__getattribute__(name)
2237
1274
self._pipe.send(('getattr', name))
2238
1275
data = self._pipe.recv()
2239
1276
if data[0] == 'data':
2240
1277
return data[1]
2241
1278
if data[0] == 'function':
2242
2243
1279
def func(*args, **kwargs):
2244
1280
self._pipe.send(('funcall', name, args, kwargs))
2245
1281
return self._pipe.recv()[1]
2246
2247
1282
return func
2248
1283
2249
1284
def __setattr__(self, name, value):
2250
if name == '_pipe':
1285
if(name == '_pipe'):
2251
1286
return super(ProxyClient, self).__setattr__(name, value)
2252
1287
self._pipe.send(('setattr', name, value))
2253
1288
1289
class ClientDBusTransitional(ClientDBus):
1290
__metaclass__ = AlternateDBusNamesMetaclass
2254
1291
2255
1292
class ClientHandler(socketserver.BaseRequestHandler, object):
2256
1293
"""A class to handle client connections.
2257
1294
2258
1295
Instantiated once for each connection to handle it.
2259
1296
Note: This will run in its own forked process."""
2260
1297
2261
1298
def handle(self):
2262
1299
with contextlib.closing(self.server.child_pipe) as child_pipe:
2263
1300
logger.info("TCP connection from: %s",
2264
str(self.client_address))
1301
unicode(self.client_address))
2265
1302
logger.debug("Pipe FD: %d",
2266
1303
self.server.child_pipe.fileno())
2267
2268
session = gnutls.ClientSession(self.request)
2269
2270
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2271
# "+AES-256-CBC", "+SHA1",
2272
# "+COMP-NULL", "+CTYPE-OPENPGP",
2273
# "+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"))
2274
1319
# Use a fallback default, since this MUST be set.
2275
1320
priority = self.server.gnutls_priority
2276
1321
if priority is None:
2277
1322
priority = "NORMAL"
2278
gnutls.priority_set_direct(session._c_object,
2279
priority.encode("utf-8"),
2280
None)
2281
1323
(gnutls.library.functions
1324
.gnutls_priority_set_direct(session._c_object,
1325
priority, None))
1326
2282
1327
# Start communication using the Mandos protocol
2283
1328
# Get protocol number
2284
1329
line = self.request.makefile().readline()
2285
1330
logger.debug("Protocol version: %r", line)
2286
1331
try:
2287
1332
if int(line.strip().split()[0]) > 1:
2288
raise RuntimeError(line)
1333
raise RuntimeError
2289
1334
except (ValueError, IndexError, RuntimeError) as error:
2290
1335
logger.error("Unknown protocol version: %s", error)
2291
1336
return
2292
1337
2293
1338
# Start GnuTLS connection
2294
1339
try:
2295
1340
session.handshake()
2296
except gnutls.Error as error:
1341
except gnutls.errors.GNUTLSError as error:
2297
1342
logger.warning("Handshake failed: %s", error)
2298
1343
# Do not run session.bye() here: the session is not
2299
1344
# established. Just abandon the request.
2300
1345
return
2301
1346
logger.debug("Handshake succeeded")
2302
1347
2303
1348
approval_required = False
2304
1349
try:
2305
if gnutls.has_rawpk:
2306
fpr = b""
2307
try:
2308
key_id = self.key_id(
2309
self.peer_certificate(session))
2310
except (TypeError, gnutls.Error) as error:
2311
logger.warning("Bad certificate: %s", error)
2312
return
2313
logger.debug("Key ID: %s", key_id)
2314
2315
else:
2316
key_id = b""
2317
try:
2318
fpr = self.fingerprint(
2319
self.peer_certificate(session))
2320
except (TypeError, gnutls.Error) as error:
2321
logger.warning("Bad certificate: %s", error)
2322
return
2323
logger.debug("Fingerprint: %s", fpr)
2324
2325
try:
2326
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,
2327
1361
self.client_address)
2328
1362
except KeyError:
2329
1363
return
2330
1364
2331
1365
if client.approval_delay:
2332
1366
delay = client.approval_delay
2333
1367
client.approvals_pending += 1
2334
1368
approval_required = True
2335
1369
2336
1370
while True:
2337
1371
if not client.enabled:
2338
1372
logger.info("Client %s is disabled",
2339
client.name)
1373
client.name)
2340
1374
if self.server.use_dbus:
2341
1375
# Emit D-Bus signal
2342
1376
client.Rejected("Disabled")
2343
1377
return
2344
2345
if client.approved or not client.approval_delay:
2346
# 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
2347
1381
break
2348
elif client.approved is None:
1382
elif client._approved is None:
2349
1383
logger.info("Client %s needs approval",
2350
1384
client.name)
2351
1385
if self.server.use_dbus:
2352
1386
# Emit D-Bus signal
2353
1387
client.NeedApproval(
2354
client.approval_delay.total_seconds()
2355
* 1000, client.approved_by_default)
1388
client.approval_delay_milliseconds(),
1389
client.approved_by_default)
2356
1390
else:
2357
1391
logger.warning("Client %s was not approved",
2358
1392
client.name)
2360
1394
# Emit D-Bus signal
2361
1395
client.Rejected("Denied")
2362
1396
return
2363
2364
# wait until timeout or approved
1397
1398
#wait until timeout or approved
2365
1399
time = datetime.datetime.now()
2366
1400
client.changedstate.acquire()
2367
client.changedstate.wait(delay.total_seconds())
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1403
/ 1000)))
2368
1404
client.changedstate.release()
2369
1405
time2 = datetime.datetime.now()
2370
1406
if (time2 - time) >= delay:
2380
1416
break
2381
1417
else:
2382
1418
delay -= time2 - time
2383
2384
try:
2385
session.send(client.secret)
2386
except gnutls.Error as error:
2387
logger.warning("gnutls send failed",
2388
exc_info=error)
2389
return
2390
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
2391
1432
logger.info("Sending secret to %s", client.name)
2392
1433
# bump the timeout using extended_timeout
2393
client.bump_timeout(client.extended_timeout)
1434
client.checked_ok(client.extended_timeout)
2394
1435
if self.server.use_dbus:
2395
1436
# Emit D-Bus signal
2396
1437
client.GotSecret()
2397
1438
2398
1439
finally:
2399
1440
if approval_required:
2400
1441
client.approvals_pending -= 1
2401
1442
try:
2402
1443
session.bye()
2403
except gnutls.Error as error:
2404
logger.warning("GnuTLS bye failed",
2405
exc_info=error)
2406
1444
except gnutls.errors.GNUTLSError as error:
1445
logger.warning("GnuTLS bye failed")
1446
2407
1447
@staticmethod
2408
1448
def peer_certificate(session):
2409
"Return the peer's certificate as a bytestring"
2410
try:
2411
cert_type = gnutls.certificate_type_get2(session._c_object,
2412
gnutls.CTYPE_PEERS)
2413
except AttributeError:
2414
cert_type = gnutls.certificate_type_get(session._c_object)
2415
if gnutls.has_rawpk:
2416
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2417
else:
2418
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2419
# If not a valid certificate type...
2420
if cert_type not in valid_cert_types:
2421
logger.info("Cert type %r not in %r", cert_type,
2422
valid_cert_types)
2423
# ...return invalid data
2424
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
2425
1456
list_size = ctypes.c_uint(1)
2426
cert_list = (gnutls.certificate_get_peers
1457
cert_list = (gnutls.library.functions
1458
.gnutls_certificate_get_peers
2427
1459
(session._c_object, ctypes.byref(list_size)))
2428
1460
if not bool(cert_list) and list_size.value != 0:
2429
raise gnutls.Error("error getting peer certificate")
1461
raise gnutls.errors.GNUTLSError("error getting peer"
1462
" certificate")
2430
1463
if list_size.value == 0:
2431
1464
return None
2432
1465
cert = cert_list[0]
2433
1466
return ctypes.string_at(cert.data, cert.size)
2434
2435
@staticmethod
2436
def key_id(certificate):
2437
"Convert a certificate bytestring to a hexdigit key ID"
2438
# New GnuTLS "datum" with the public key
2439
datum = gnutls.datum_t(
2440
ctypes.cast(ctypes.c_char_p(certificate),
2441
ctypes.POINTER(ctypes.c_ubyte)),
2442
ctypes.c_uint(len(certificate)))
2443
# XXX all these need to be created in the gnutls "module"
2444
# New empty GnuTLS certificate
2445
pubkey = gnutls.pubkey_t()
2446
gnutls.pubkey_init(ctypes.byref(pubkey))
2447
# Import the raw public key into the certificate
2448
gnutls.pubkey_import(pubkey,
2449
ctypes.byref(datum),
2450
gnutls.X509_FMT_DER)
2451
# New buffer for the key ID
2452
buf = ctypes.create_string_buffer(32)
2453
buf_len = ctypes.c_size_t(len(buf))
2454
# Get the key ID from the raw public key into the buffer
2455
gnutls.pubkey_get_key_id(pubkey,
2456
gnutls.KEYID_USE_SHA256,
2457
ctypes.cast(ctypes.byref(buf),
2458
ctypes.POINTER(ctypes.c_ubyte)),
2459
ctypes.byref(buf_len))
2460
# Deinit the certificate
2461
gnutls.pubkey_deinit(pubkey)
2462
2463
# Convert the buffer to a Python bytestring
2464
key_id = ctypes.string_at(buf, buf_len.value)
2465
# Convert the bytestring to hexadecimal notation
2466
hex_key_id = binascii.hexlify(key_id).upper()
2467
return hex_key_id
2468
1467
2469
1468
@staticmethod
2470
1469
def fingerprint(openpgp):
2471
1470
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2472
1471
# New GnuTLS "datum" with the OpenPGP public key
2473
datum = gnutls.datum_t(
2474
ctypes.cast(ctypes.c_char_p(openpgp),
2475
ctypes.POINTER(ctypes.c_ubyte)),
2476
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))))
2477
1477
# New empty GnuTLS certificate
2478
crt = gnutls.openpgp_crt_t()
2479
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)))
2480
1481
# Import the OpenPGP public key into the certificate
2481
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2482
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))
2483
1486
# Verify the self signature in the key
2484
1487
crtverify = ctypes.c_uint()
2485
gnutls.openpgp_crt_verify_self(crt, 0,
2486
ctypes.byref(crtverify))
1488
(gnutls.library.functions
1489
.gnutls_openpgp_crt_verify_self(crt, 0,
1490
ctypes.byref(crtverify)))
2487
1491
if crtverify.value != 0:
2488
gnutls.openpgp_crt_deinit(crt)
2489
raise gnutls.CertificateSecurityError(code
2490
=crtverify.value)
1492
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1493
raise (gnutls.errors.CertificateSecurityError
1494
("Verify failed"))
2491
1495
# New buffer for the fingerprint
2492
1496
buf = ctypes.create_string_buffer(20)
2493
1497
buf_len = ctypes.c_size_t()
2494
1498
# Get the fingerprint from the certificate into the buffer
2495
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2496
ctypes.byref(buf_len))
1499
(gnutls.library.functions
1500
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1501
ctypes.byref(buf_len)))
2497
1502
# Deinit the certificate
2498
gnutls.openpgp_crt_deinit(crt)
1503
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2499
1504
# Convert the buffer to a Python bytestring
2500
1505
fpr = ctypes.string_at(buf, buf_len.value)
2501
1506
# Convert the bytestring to hexadecimal notation
2502
hex_fpr = binascii.hexlify(fpr).upper()
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2503
1508
return hex_fpr
2504
1509
2505
1510
2506
class MultiprocessingMixIn:
1511
class MultiprocessingMixIn(object):
2507
1512
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2508
2509
1513
def sub_process_main(self, request, address):
2510
1514
try:
2511
1515
self.finish_request(request, address)
2512
except Exception:
1516
except:
2513
1517
self.handle_error(request, address)
2514
1518
self.close_request(request)
2515
1519
2516
1520
def process_request(self, request, address):
2517
1521
"""Start a new process to process the request."""
2518
proc = multiprocessing.Process(target=self.sub_process_main,
2519
args=(request, address))
1522
proc = multiprocessing.Process(target = self.sub_process_main,
1523
args = (request,
1524
address))
2520
1525
proc.start()
2521
1526
return proc
2522
1527
2523
1528
2524
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1529
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2525
1530
""" adds a pipe to the MixIn """
2526
2527
1531
def process_request(self, request, client_address):
2528
1532
"""Overrides and wraps the original process_request().
2529
1533
2530
1534
This function creates a new pipe in self.pipe
2531
1535
"""
2532
1536
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2533
1537
2534
1538
proc = MultiprocessingMixIn.process_request(self, request,
2535
1539
client_address)
2536
1540
self.child_pipe.close()
2537
1541
self.add_pipe(parent_pipe, proc)
2538
1542
2539
1543
def add_pipe(self, parent_pipe, proc):
2540
1544
"""Dummy function; override as necessary"""
2541
raise NotImplementedError()
1545
raise NotImplementedError
2542
1546
2543
1547
2544
1548
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2545
socketserver.TCPServer):
1549
socketserver.TCPServer, object):
2546
1550
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2547
1551
2548
1552
Attributes:
2549
1553
enabled: Boolean; whether this server is activated yet
2550
1554
interface: None or a network interface name (string)
2551
1555
use_ipv6: Boolean; to use IPv6 or not
2552
1556
"""
2553
2554
1557
def __init__(self, server_address, RequestHandlerClass,
2555
interface=None,
2556
use_ipv6=True,
2557
socketfd=None):
2558
"""If socketfd is set, use that file descriptor instead of
2559
creating a new one with socket.socket().
2560
"""
1558
interface=None, use_ipv6=True):
2561
1559
self.interface = interface
2562
1560
if use_ipv6:
2563
1561
self.address_family = socket.AF_INET6
2564
if socketfd is not None:
2565
# Save the file descriptor
2566
self.socketfd = socketfd
2567
# Save the original socket.socket() function
2568
self.socket_socket = socket.socket
2569
2570
# To implement --socket, we monkey patch socket.socket.
2571
#
2572
# (When socketserver.TCPServer is a new-style class, we
2573
# could make self.socket into a property instead of monkey
2574
# patching socket.socket.)
2575
#
2576
# Create a one-time-only replacement for socket.socket()
2577
@functools.wraps(socket.socket)
2578
def socket_wrapper(*args, **kwargs):
2579
# Restore original function so subsequent calls are
2580
# not affected.
2581
socket.socket = self.socket_socket
2582
del self.socket_socket
2583
# This time only, return a new socket object from the
2584
# saved file descriptor.
2585
return socket.fromfd(self.socketfd, *args, **kwargs)
2586
# Replace socket.socket() function with wrapper
2587
socket.socket = socket_wrapper
2588
# The socketserver.TCPServer.__init__ will call
2589
# socket.socket(), which might be our replacement,
2590
# socket_wrapper(), if socketfd was set.
2591
1562
socketserver.TCPServer.__init__(self, server_address,
2592
1563
RequestHandlerClass)
2593
2594
1564
def server_bind(self):
2595
1565
"""This overrides the normal server_bind() function
2596
1566
to bind to an interface if one was specified, and also NOT to
2597
1567
bind to an address or port if they were not specified."""
2598
global SO_BINDTODEVICE
2599
1568
if self.interface is not None:
2600
1569
if SO_BINDTODEVICE is None:
2601
# Fall back to a hard-coded value which seems to be
2602
# common enough.
2603
logger.warning("SO_BINDTODEVICE not found, trying 25")
2604
SO_BINDTODEVICE = 25
2605
try:
2606
self.socket.setsockopt(
2607
socket.SOL_SOCKET, SO_BINDTODEVICE,
2608
(self.interface + "\0").encode("utf-8"))
2609
except socket.error as error:
2610
if error.errno == errno.EPERM:
2611
logger.error("No permission to bind to"
2612
" interface %s", self.interface)
2613
elif error.errno == errno.ENOPROTOOPT:
2614
logger.error("SO_BINDTODEVICE not available;"
2615
" cannot bind to interface %s",
2616
self.interface)
2617
elif error.errno == errno.ENODEV:
2618
logger.error("Interface %s does not exist,"
2619
" cannot bind", self.interface)
2620
else:
2621
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
2622
1590
# Only bind(2) the socket if we really need to.
2623
1591
if self.server_address[0] or self.server_address[1]:
2624
if self.server_address[1]:
2625
self.allow_reuse_address = True
2626
1592
if not self.server_address[0]:
2627
1593
if self.address_family == socket.AF_INET6:
2628
any_address = "::" # in6addr_any
1594
any_address = "::" # in6addr_any
2629
1595
else:
2630
any_address = "0.0.0.0" # INADDR_ANY
1596
any_address = socket.INADDR_ANY
2631
1597
self.server_address = (any_address,
2632
1598
self.server_address[1])
2633
1599
elif not self.server_address[1]:
2634
self.server_address = (self.server_address[0], 0)
1600
self.server_address = (self.server_address[0],
1601
0)
2635
1602
# if self.interface:
2636
1603
# self.server_address = (self.server_address[0],
2637
1604
# 0, # port
2643
1610
2644
1611
class MandosServer(IPv6_TCPServer):
2645
1612
"""Mandos server.
2646
1613
2647
1614
Attributes:
2648
1615
clients: set of Client objects
2649
1616
gnutls_priority GnuTLS priority string
2650
1617
use_dbus: Boolean; to emit D-Bus signals or not
2651
2652
Assumes a GLib.MainLoop event loop.
1618
1619
Assumes a gobject.MainLoop event loop.
2653
1620
"""
2654
2655
1621
def __init__(self, server_address, RequestHandlerClass,
2656
interface=None,
2657
use_ipv6=True,
2658
clients=None,
2659
gnutls_priority=None,
2660
use_dbus=True,
2661
socketfd=None):
1622
interface=None, use_ipv6=True, clients=None,
1623
gnutls_priority=None, use_dbus=True):
2662
1624
self.enabled = False
2663
1625
self.clients = clients
2664
1626
if self.clients is None:
2665
self.clients = {}
1627
self.clients = set()
2666
1628
self.use_dbus = use_dbus
2667
1629
self.gnutls_priority = gnutls_priority
2668
1630
IPv6_TCPServer.__init__(self, server_address,
2669
1631
RequestHandlerClass,
2670
interface=interface,
2671
use_ipv6=use_ipv6,
2672
socketfd=socketfd)
2673
1632
interface = interface,
1633
use_ipv6 = use_ipv6)
2674
1634
def server_activate(self):
2675
1635
if self.enabled:
2676
1636
return socketserver.TCPServer.server_activate(self)
2677
1637
2678
1638
def enable(self):
2679
1639
self.enabled = True
2680
1640
2681
1641
def add_pipe(self, parent_pipe, proc):
2682
1642
# Call "handle_ipc" for both data and EOF events
2683
GLib.io_add_watch(
2684
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2685
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2686
functools.partial(self.handle_ipc,
2687
parent_pipe=parent_pipe,
2688
proc=proc))
2689
2690
def handle_ipc(self, source, condition,
2691
parent_pipe=None,
2692
proc=None,
2693
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)
2694
1666
# error, or the other end of multiprocessing.Pipe has closed
2695
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1667
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2696
1668
# Wait for other process to exit
2697
1669
proc.join()
2698
1670
return False
2699
1671
2700
1672
# Read a request from the child
2701
1673
request = parent_pipe.recv()
2702
1674
command = request[0]
2703
1675
2704
1676
if command == 'init':
2705
key_id = request[1].decode("ascii")
2706
fpr = request[2].decode("ascii")
2707
address = request[3]
2708
2709
for c in self.clients.values():
2710
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2711
continue
2712
if key_id and c.key_id == key_id:
2713
client = c
2714
break
2715
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:
2716
1682
client = c
2717
1683
break
2718
1684
else:
2719
logger.info("Client not found for key ID: %s, address"
2720
": %s", key_id or fpr, address)
1685
logger.info("Client not found for fingerprint: %s, ad"
1686
"dress: %s", fpr, address)
2721
1687
if self.use_dbus:
2722
1688
# Emit D-Bus signal
2723
mandos_dbus_service.ClientNotFound(key_id or fpr,
1689
mandos_dbus_service.ClientNotFound(fpr,
2724
1690
address[0])
2725
1691
parent_pipe.send(False)
2726
1692
return False
2727
2728
GLib.io_add_watch(
2729
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2730
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2731
functools.partial(self.handle_ipc,
2732
parent_pipe=parent_pipe,
2733
proc=proc,
2734
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))
2735
1702
parent_pipe.send(True)
2736
1703
# remove the old hook in favor of the new above hook on
2737
1704
# same fileno
2740
1707
funcname = request[1]
2741
1708
args = request[2]
2742
1709
kwargs = request[3]
2743
1710
2744
1711
parent_pipe.send(('data', getattr(client_object,
2745
1712
funcname)(*args,
2746
**kwargs)))
2747
1713
**kwargs)))
1714
2748
1715
if command == 'getattr':
2749
1716
attrname = request[1]
2750
if isinstance(client_object.__getattribute__(attrname),
2751
collections.Callable):
2752
parent_pipe.send(('function', ))
1717
if callable(client_object.__getattribute__(attrname)):
1718
parent_pipe.send(('function',))
2753
1719
else:
2754
parent_pipe.send((
2755
'data', client_object.__getattribute__(attrname)))
2756
1720
parent_pipe.send(('data', client_object
1721
.__getattribute__(attrname)))
1722
2757
1723
if command == 'setattr':
2758
1724
attrname = request[1]
2759
1725
value = request[2]
2760
1726
setattr(client_object, attrname, value)
2761
1727
2762
1728
return True
2763
1729
2764
1730
2765
def rfc3339_duration_to_delta(duration):
2766
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2767
2768
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2771
True
2772
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2773
True
2774
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2775
True
2776
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2777
True
2778
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2779
True
2780
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2781
True
2782
"""
2783
2784
# Parsing an RFC 3339 duration with regular expressions is not
2785
# possible - there would have to be multiple places for the same
2786
# values, like seconds. The current code, while more esoteric, is
2787
# cleaner without depending on a parsing library. If Python had a
2788
# built-in library for parsing we would use it, but we'd like to
2789
# avoid excessive use of external libraries.
2790
2791
# New type for defining tokens, syntax, and semantics all-in-one
2792
Token = collections.namedtuple("Token", (
2793
"regexp", # To match token; if "value" is not None, must have
2794
# a "group" containing digits
2795
"value", # datetime.timedelta or None
2796
"followers")) # Tokens valid after this token
2797
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2798
# the "duration" ABNF definition in RFC 3339, Appendix A.
2799
token_end = Token(re.compile(r"$"), None, frozenset())
2800
token_second = Token(re.compile(r"(\d+)S"),
2801
datetime.timedelta(seconds=1),
2802
frozenset((token_end, )))
2803
token_minute = Token(re.compile(r"(\d+)M"),
2804
datetime.timedelta(minutes=1),
2805
frozenset((token_second, token_end)))
2806
token_hour = Token(re.compile(r"(\d+)H"),
2807
datetime.timedelta(hours=1),
2808
frozenset((token_minute, token_end)))
2809
token_time = Token(re.compile(r"T"),
2810
None,
2811
frozenset((token_hour, token_minute,
2812
token_second)))
2813
token_day = Token(re.compile(r"(\d+)D"),
2814
datetime.timedelta(days=1),
2815
frozenset((token_time, token_end)))
2816
token_month = Token(re.compile(r"(\d+)M"),
2817
datetime.timedelta(weeks=4),
2818
frozenset((token_day, token_end)))
2819
token_year = Token(re.compile(r"(\d+)Y"),
2820
datetime.timedelta(weeks=52),
2821
frozenset((token_month, token_end)))
2822
token_week = Token(re.compile(r"(\d+)W"),
2823
datetime.timedelta(weeks=1),
2824
frozenset((token_end, )))
2825
token_duration = Token(re.compile(r"P"), None,
2826
frozenset((token_year, token_month,
2827
token_day, token_time,
2828
token_week)))
2829
# Define starting values:
2830
# Value so far
2831
value = datetime.timedelta()
2832
found_token = None
2833
# Following valid tokens
2834
followers = frozenset((token_duration, ))
2835
# String left to parse
2836
s = duration
2837
# Loop until end token is found
2838
while found_token is not token_end:
2839
# Search for any currently valid tokens
2840
for token in followers:
2841
match = token.regexp.match(s)
2842
if match is not None:
2843
# Token found
2844
if token.value is not None:
2845
# Value found, parse digits
2846
factor = int(match.group(1), 10)
2847
# Add to value so far
2848
value += factor * token.value
2849
# Strip token from string
2850
s = token.regexp.sub("", s, 1)
2851
# Go to found token
2852
found_token = token
2853
# Set valid next tokens
2854
followers = found_token.followers
2855
break
2856
else:
2857
# No currently valid tokens were found
2858
raise ValueError("Invalid RFC 3339 duration: {!r}"
2859
.format(duration))
2860
# End token found
2861
return value
2862
2863
2864
1731
def string_to_delta(interval):
2865
1732
"""Parse a string and return a datetime.timedelta
2866
2867
>>> string_to_delta('7d') == datetime.timedelta(7)
2868
True
2869
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2870
True
2871
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2872
True
2873
>>> string_to_delta('24h') == datetime.timedelta(1)
2874
True
2875
>>> string_to_delta('1w') == datetime.timedelta(7)
2876
True
2877
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2878
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)
2879
1746
"""
2880
2881
try:
2882
return rfc3339_duration_to_delta(interval)
2883
except ValueError:
2884
pass
2885
2886
1747
timevalue = datetime.timedelta(0)
2887
1748
for s in interval.split():
2888
1749
try:
2889
suffix = s[-1]
1750
suffix = unicode(s[-1])
2890
1751
value = int(s[:-1])
2891
1752
if suffix == "d":
2892
1753
delta = datetime.timedelta(value)
2899
1760
elif suffix == "w":
2900
1761
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2901
1762
else:
2902
raise ValueError("Unknown suffix {!r}".format(suffix))
2903
except IndexError as e:
1763
raise ValueError("Unknown suffix %r" % suffix)
1764
except (ValueError, IndexError) as e:
2904
1765
raise ValueError(*(e.args))
2905
1766
timevalue += delta
2906
1767
return timevalue
2907
1768
2908
1769
2909
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):
2910
1795
"""See daemon(3). Standard BSD Unix function.
2911
1796
2912
1797
This should really exist as os.daemon, but it doesn't (yet)."""
2913
1798
if os.fork():
2914
1799
sys.exit()
2919
1804
sys.exit()
2920
1805
if not noclose:
2921
1806
# Close all standard open file descriptors
2922
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1807
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2923
1808
if not stat.S_ISCHR(os.fstat(null).st_mode):
2924
1809
raise OSError(errno.ENODEV,
2925
"{} not a character device"
2926
.format(os.devnull))
1810
"%s not a character device"
1811
% os.path.devnull)
2927
1812
os.dup2(null, sys.stdin.fileno())
2928
1813
os.dup2(null, sys.stdout.fileno())
2929
1814
os.dup2(null, sys.stderr.fileno())
2932
1817
2933
1818
2934
1819
def main():
2935
1820
2936
1821
##################################################################
2937
1822
# Parsing of options, both command line and config file
2938
1823
2939
1824
parser = argparse.ArgumentParser()
2940
1825
parser.add_argument("-v", "--version", action="version",
2941
version="%(prog)s {}".format(version),
1826
version = "%%(prog)s %s" % version,
2942
1827
help="show version number and exit")
2943
1828
parser.add_argument("-i", "--interface", metavar="IF",
2944
1829
help="Bind to interface IF")
2950
1835
help="Run self-test")
2951
1836
parser.add_argument("--debug", action="store_true",
2952
1837
help="Debug mode; run in foreground and log"
2953
" to terminal", default=None)
1838
" to terminal")
2954
1839
parser.add_argument("--debuglevel", metavar="LEVEL",
2955
1840
help="Debug level for stdout output")
2956
1841
parser.add_argument("--priority", help="GnuTLS"
2963
1848
" files")
2964
1849
parser.add_argument("--no-dbus", action="store_false",
2965
1850
dest="use_dbus", help="Do not provide D-Bus"
2966
" system bus interface", default=None)
1851
" system bus interface")
2967
1852
parser.add_argument("--no-ipv6", action="store_false",
2968
dest="use_ipv6", help="Do not use IPv6",
2969
default=None)
2970
parser.add_argument("--no-restore", action="store_false",
2971
dest="restore", help="Do not restore stored"
2972
" state", default=None)
2973
parser.add_argument("--socket", type=int,
2974
help="Specify a file descriptor to a network"
2975
" socket to use instead of creating one")
2976
parser.add_argument("--statedir", metavar="DIR",
2977
help="Directory to save/restore state in")
2978
parser.add_argument("--foreground", action="store_true",
2979
help="Run in foreground", default=None)
2980
parser.add_argument("--no-zeroconf", action="store_false",
2981
dest="zeroconf", help="Do not use Zeroconf",
2982
default=None)
2983
1853
dest="use_ipv6", help="Do not use IPv6")
2984
1854
options = parser.parse_args()
2985
1855
1856
if options.check:
1857
import doctest
1858
doctest.testmod()
1859
sys.exit()
1860
2986
1861
# Default values for config file for server-global settings
2987
if gnutls.has_rawpk:
2988
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2989
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2990
else:
2991
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2992
":+SIGN-DSA-SHA256")
2993
server_defaults = {"interface": "",
2994
"address": "",
2995
"port": "",
2996
"debug": "False",
2997
"priority": priority,
2998
"servicename": "Mandos",
2999
"use_dbus": "True",
3000
"use_ipv6": "True",
3001
"debuglevel": "",
3002
"restore": "True",
3003
"socket": "",
3004
"statedir": "/var/lib/mandos",
3005
"foreground": "False",
3006
"zeroconf": "True",
3007
}
3008
del priority
3009
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
3010
1874
# Parse config file for server-global settings
3011
server_config = configparser.ConfigParser(server_defaults)
1875
server_config = configparser.SafeConfigParser(server_defaults)
3012
1876
del server_defaults
3013
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3014
# 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
3015
1880
server_settings = server_config.defaults()
3016
1881
# Use the appropriate methods on the non-string config options
3017
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3018
"foreground", "zeroconf"):
1882
for option in ("debug", "use_dbus", "use_ipv6"):
3019
1883
server_settings[option] = server_config.getboolean("DEFAULT",
3020
1884
option)
3021
1885
if server_settings["port"]:
3022
1886
server_settings["port"] = server_config.getint("DEFAULT",
3023
1887
"port")
3024
if server_settings["socket"]:
3025
server_settings["socket"] = server_config.getint("DEFAULT",
3026
"socket")
3027
# Later, stdin will, and stdout and stderr might, be dup'ed
3028
# over with an opened os.devnull. But we don't want this to
3029
# happen with a supplied network socket.
3030
if 0 <= server_settings["socket"] <= 2:
3031
server_settings["socket"] = os.dup(server_settings
3032
["socket"])
3033
1888
del server_config
3034
1889
3035
1890
# Override the settings from the config file with command line
3036
1891
# options, if set.
3037
1892
for option in ("interface", "address", "port", "debug",
3038
"priority", "servicename", "configdir", "use_dbus",
3039
"use_ipv6", "debuglevel", "restore", "statedir",
3040
"socket", "foreground", "zeroconf"):
1893
"priority", "servicename", "configdir",
1894
"use_dbus", "use_ipv6", "debuglevel"):
3041
1895
value = getattr(options, option)
3042
1896
if value is not None:
3043
1897
server_settings[option] = value
3044
1898
del options
3045
1899
# Force all strings to be unicode
3046
1900
for option in server_settings.keys():
3047
if isinstance(server_settings[option], bytes):
3048
server_settings[option] = (server_settings[option]
3049
.decode("utf-8"))
3050
# Force all boolean options to be boolean
3051
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3052
"foreground", "zeroconf"):
3053
server_settings[option] = bool(server_settings[option])
3054
# Debug implies foreground
3055
if server_settings["debug"]:
3056
server_settings["foreground"] = True
1901
if type(server_settings[option]) is str:
1902
server_settings[option] = unicode(server_settings[option])
3057
1903
# Now we have our good server settings in "server_settings"
3058
1904
3059
1905
##################################################################
3060
3061
if (not server_settings["zeroconf"]
3062
and not (server_settings["port"]
3063
or server_settings["socket"] != "")):
3064
parser.error("Needs port or socket to work without Zeroconf")
3065
1906
3066
1907
# For convenience
3067
1908
debug = server_settings["debug"]
3068
1909
debuglevel = server_settings["debuglevel"]
3069
1910
use_dbus = server_settings["use_dbus"]
3070
1911
use_ipv6 = server_settings["use_ipv6"]
3071
stored_state_path = os.path.join(server_settings["statedir"],
3072
stored_state_file)
3073
foreground = server_settings["foreground"]
3074
zeroconf = server_settings["zeroconf"]
3075
3076
if debug:
3077
initlogger(debug, logging.DEBUG)
3078
else:
3079
if not debuglevel:
3080
initlogger(debug)
3081
else:
3082
level = getattr(logging, debuglevel.upper())
3083
initlogger(debug, level)
3084
1912
3085
1913
if server_settings["servicename"] != "Mandos":
3086
syslogger.setFormatter(
3087
logging.Formatter('Mandos ({}) [%(process)d]:'
3088
' %(levelname)s: %(message)s'.format(
3089
server_settings["servicename"])))
3090
1914
syslogger.setFormatter(logging.Formatter
1915
('Mandos (%s) [%%(process)d]:'
1916
' %%(levelname)s: %%(message)s'
1917
% server_settings["servicename"]))
1918
3091
1919
# Parse config file with clients
3092
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)
3093
1929
client_config.read(os.path.join(server_settings["configdir"],
3094
1930
"clients.conf"))
3095
1931
3096
1932
global mandos_dbus_service
3097
1933
mandos_dbus_service = None
3098
3099
socketfd = None
3100
if server_settings["socket"] != "":
3101
socketfd = server_settings["socket"]
3102
tcp_server = MandosServer(
3103
(server_settings["address"], server_settings["port"]),
3104
ClientHandler,
3105
interface=(server_settings["interface"] or None),
3106
use_ipv6=use_ipv6,
3107
gnutls_priority=server_settings["priority"],
3108
use_dbus=use_dbus,
3109
socketfd=socketfd)
3110
if not foreground:
3111
pidfilename = "/run/mandos.pid"
3112
if not os.path.isdir("/run/."):
3113
pidfilename = "/var/run/mandos.pid"
3114
pidfile = None
3115
try:
3116
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3117
except IOError as e:
3118
logger.error("Could not open file %r", pidfilename,
3119
exc_info=e)
3120
3121
for name, group in (("_mandos", "_mandos"),
3122
("mandos", "mandos"),
3123
("nobody", "nogroup")):
3124
try:
3125
uid = pwd.getpwnam(name).pw_uid
3126
gid = pwd.getpwnam(group).pw_gid
3127
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
3128
1958
except KeyError:
3129
continue
3130
else:
3131
uid = 65534
3132
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
3133
1965
try:
3134
1966
os.setgid(gid)
3135
1967
os.setuid(uid)
3136
if debug:
3137
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3138
gid))
3139
1968
except OSError as error:
3140
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3141
.format(uid, gid, os.strerror(error.errno)))
3142
if error.errno != errno.EPERM:
3143
raise
3144
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
3145
1980
if debug:
3146
1981
# Enable all possible GnuTLS debugging
3147
1982
3148
1983
# "Use a log level over 10 to enable all debugging options."
3149
1984
# - GnuTLS manual
3150
gnutls.global_set_log_level(11)
3151
3152
@gnutls.log_func
1985
gnutls.library.functions.gnutls_global_set_log_level(11)
1986
1987
@gnutls.library.types.gnutls_log_func
3153
1988
def debug_gnutls(level, string):
3154
1989
logger.debug("GnuTLS: %s", string[:-1])
3155
3156
gnutls.global_set_log_function(debug_gnutls)
3157
1990
1991
(gnutls.library.functions
1992
.gnutls_global_set_log_function(debug_gnutls))
1993
3158
1994
# Redirect stdin so all checkers get /dev/null
3159
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1995
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3160
1996
os.dup2(null, sys.stdin.fileno())
3161
1997
if null > 2:
3162
1998
os.close(null)
3163
1999
else:
2000
# No console logging
2001
logger.removeHandler(console)
2002
3164
2003
# Need to fork before connecting to D-Bus
3165
if not foreground:
2004
if not debug:
3166
2005
# Close all input and output, do double fork, etc.
3167
2006
daemon()
3168
3169
if gi.version_info < (3, 10, 2):
3170
# multiprocessing will use threads, so before we use GLib we
3171
# need to inform GLib that threads will be used.
3172
GLib.threads_init()
3173
2007
3174
2008
global main_loop
3175
2009
# From the Avahi example code
3176
DBusGMainLoop(set_as_default=True)
3177
main_loop = GLib.MainLoop()
2010
DBusGMainLoop(set_as_default=True )
2011
main_loop = gobject.MainLoop()
3178
2012
bus = dbus.SystemBus()
3179
2013
# End of Avahi example code
3180
2014
if use_dbus:
3181
2015
try:
3182
2016
bus_name = dbus.service.BusName("se.recompile.Mandos",
3183
bus,
3184
do_not_queue=True)
3185
old_bus_name = dbus.service.BusName(
3186
"se.bsnet.fukt.Mandos", bus,
3187
do_not_queue=True)
3188
except dbus.exceptions.DBusException as e:
3189
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")
3190
2023
use_dbus = False
3191
2024
server_settings["use_dbus"] = False
3192
2025
tcp_server.use_dbus = False
3193
if zeroconf:
3194
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3195
service = AvahiServiceToSyslog(
3196
name=server_settings["servicename"],
3197
servicetype="_mandos._tcp",
3198
protocol=protocol,
3199
bus=bus)
3200
if server_settings["interface"]:
3201
service.interface = if_nametoindex(
3202
server_settings["interface"].encode("utf-8"))
3203
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
3204
2034
global multiprocessing_manager
3205
2035
multiprocessing_manager = multiprocessing.Manager()
3206
2036
3207
2037
client_class = Client
3208
2038
if use_dbus:
3209
client_class = functools.partial(ClientDBus, bus=bus)
3210
3211
client_settings = Client.config_parser(client_config)
3212
old_client_settings = {}
3213
clients_data = {}
3214
3215
# This is used to redirect stdout and stderr for checker processes
3216
global wnull
3217
wnull = open(os.devnull, "w") # A writable /dev/null
3218
# Only used if server is running in foreground but not in debug
3219
# mode
3220
if debug or not foreground:
3221
wnull.close()
3222
3223
# Get client data and settings from last running state.
3224
if server_settings["restore"]:
3225
try:
3226
with open(stored_state_path, "rb") as stored_state:
3227
if sys.version_info.major == 2:
3228
clients_data, old_client_settings = pickle.load(
3229
stored_state)
3230
else:
3231
bytes_clients_data, bytes_old_client_settings = (
3232
pickle.load(stored_state, encoding="bytes"))
3233
# Fix bytes to strings
3234
# clients_data
3235
# .keys()
3236
clients_data = {(key.decode("utf-8")
3237
if isinstance(key, bytes)
3238
else key): value
3239
for key, value in
3240
bytes_clients_data.items()}
3241
del bytes_clients_data
3242
for key in clients_data:
3243
value = {(k.decode("utf-8")
3244
if isinstance(k, bytes) else k): v
3245
for k, v in
3246
clients_data[key].items()}
3247
clients_data[key] = value
3248
# .client_structure
3249
value["client_structure"] = [
3250
(s.decode("utf-8")
3251
if isinstance(s, bytes)
3252
else s) for s in
3253
value["client_structure"]]
3254
# .name, .host, and .checker_command
3255
for k in ("name", "host", "checker_command"):
3256
if isinstance(value[k], bytes):
3257
value[k] = value[k].decode("utf-8")
3258
if "key_id" not in value:
3259
value["key_id"] = ""
3260
elif "fingerprint" not in value:
3261
value["fingerprint"] = ""
3262
# old_client_settings
3263
# .keys()
3264
old_client_settings = {
3265
(key.decode("utf-8")
3266
if isinstance(key, bytes)
3267
else key): value
3268
for key, value in
3269
bytes_old_client_settings.items()}
3270
del bytes_old_client_settings
3271
# .host and .checker_command
3272
for value in old_client_settings.values():
3273
for attribute in ("host", "checker_command"):
3274
if isinstance(value[attribute], bytes):
3275
value[attribute] = (value[attribute]
3276
.decode("utf-8"))
3277
os.remove(stored_state_path)
3278
except IOError as e:
3279
if e.errno == errno.ENOENT:
3280
logger.warning("Could not load persistent state:"
3281
" {}".format(os.strerror(e.errno)))
3282
else:
3283
logger.critical("Could not load persistent state:",
3284
exc_info=e)
3285
raise
3286
except EOFError as e:
3287
logger.warning("Could not load persistent state: "
3288
"EOFError:",
3289
exc_info=e)
3290
3291
with PGPEngine() as pgp:
3292
for client_name, client in clients_data.items():
3293
# Skip removed clients
3294
if client_name not in client_settings:
3295
continue
3296
3297
# Decide which value to use after restoring saved state.
3298
# We have three different values: Old config file,
3299
# new config file, and saved state.
3300
# New config value takes precedence if it differs from old
3301
# config value, otherwise use saved state.
3302
for name, value in client_settings[client_name].items():
3303
try:
3304
# For each value in new config, check if it
3305
# differs from the old config value (Except for
3306
# the "secret" attribute)
3307
if (name != "secret"
3308
and (value !=
3309
old_client_settings[client_name][name])):
3310
client[name] = value
3311
except KeyError:
3312
pass
3313
3314
# Clients who has passed its expire date can still be
3315
# enabled if its last checker was successful. A Client
3316
# whose checker succeeded before we stored its state is
3317
# assumed to have successfully run all checkers during
3318
# downtime.
3319
if client["enabled"]:
3320
if datetime.datetime.utcnow() >= client["expires"]:
3321
if not client["last_checked_ok"]:
3322
logger.warning(
3323
"disabling client {} - Client never "
3324
"performed a successful checker".format(
3325
client_name))
3326
client["enabled"] = False
3327
elif client["last_checker_status"] != 0:
3328
logger.warning(
3329
"disabling client {} - Client last"
3330
" checker failed with error code"
3331
" {}".format(
3332
client_name,
3333
client["last_checker_status"]))
3334
client["enabled"] = False
3335
else:
3336
client["expires"] = (
3337
datetime.datetime.utcnow()
3338
+ client["timeout"])
3339
logger.debug("Last checker succeeded,"
3340
" keeping {} enabled".format(
3341
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):
3342
2048
try:
3343
client["secret"] = pgp.decrypt(
3344
client["encrypted_secret"],
3345
client_settings[client_name]["secret"])
3346
except PGPError:
3347
# If decryption fails, we use secret from new settings
3348
logger.debug("Failed to decrypt {} old secret".format(
3349
client_name))
3350
client["secret"] = (client_settings[client_name]
3351
["secret"])
3352
3353
# Add/remove clients based on new changes made to config
3354
for client_name in (set(old_client_settings)
3355
- set(client_settings)):
3356
del clients_data[client_name]
3357
for client_name in (set(client_settings)
3358
- set(old_client_settings)):
3359
clients_data[client_name] = client_settings[client_name]
3360
3361
# Create all client objects
3362
for client_name, client in clients_data.items():
3363
tcp_server.clients[client_name] = client_class(
3364
name=client_name,
3365
settings=client,
3366
server_settings=server_settings)
3367
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()))
3368
2058
if not tcp_server.clients:
3369
2059
logger.warning("No clients defined")
3370
3371
if not foreground:
3372
if pidfile is not None:
3373
pid = os.getpid()
3374
try:
3375
with pidfile:
3376
print(pid, file=pidfile)
3377
except IOError:
3378
logger.error("Could not write to file %r with PID %d",
3379
pidfilename, pid)
3380
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
3381
2073
del pidfilename
3382
3383
for termsig in (signal.SIGHUP, signal.SIGTERM):
3384
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3385
lambda: main_loop.quit() and False)
3386
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
3387
2080
if use_dbus:
3388
3389
@alternate_dbus_interfaces(
3390
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3391
class MandosDBusService(DBusObjectWithObjectManager):
2081
class MandosDBusService(dbus.service.Object):
3392
2082
"""A D-Bus proxy object"""
3393
3394
2083
def __init__(self):
3395
2084
dbus.service.Object.__init__(self, bus, "/")
3396
3397
2085
_interface = "se.recompile.Mandos"
3398
2086
3399
2087
@dbus.service.signal(_interface, signature="o")
3400
2088
def ClientAdded(self, objpath):
3401
2089
"D-Bus signal"
3402
2090
pass
3403
2091
3404
2092
@dbus.service.signal(_interface, signature="ss")
3405
def ClientNotFound(self, key_id, address):
2093
def ClientNotFound(self, fingerprint, address):
3406
2094
"D-Bus signal"
3407
2095
pass
3408
3409
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3410
"true"})
2096
3411
2097
@dbus.service.signal(_interface, signature="os")
3412
2098
def ClientRemoved(self, objpath, name):
3413
2099
"D-Bus signal"
3414
2100
pass
3415
3416
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3417
"true"})
2101
3418
2102
@dbus.service.method(_interface, out_signature="ao")
3419
2103
def GetAllClients(self):
3420
2104
"D-Bus method"
3421
return dbus.Array(c.dbus_object_path for c in
3422
tcp_server.clients.values())
3423
3424
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3425
"true"})
2105
return dbus.Array(c.dbus_object_path
2106
for c in tcp_server.clients)
2107
3426
2108
@dbus.service.method(_interface,
3427
2109
out_signature="a{oa{sv}}")
3428
2110
def GetAllClientsWithProperties(self):
3429
2111
"D-Bus method"
3430
2112
return dbus.Dictionary(
3431
{c.dbus_object_path: c.GetAll(
3432
"se.recompile.Mandos.Client")
3433
for c in tcp_server.clients.values()},
2113
((c.dbus_object_path, c.GetAll(""))
2114
for c in tcp_server.clients),
3434
2115
signature="oa{sv}")
3435
2116
3436
2117
@dbus.service.method(_interface, in_signature="o")
3437
2118
def RemoveClient(self, object_path):
3438
2119
"D-Bus method"
3439
for c in tcp_server.clients.values():
2120
for c in tcp_server.clients:
3440
2121
if c.dbus_object_path == object_path:
3441
del tcp_server.clients[c.name]
2122
tcp_server.clients.remove(c)
3442
2123
c.remove_from_connection()
3443
# Don't signal the disabling
2124
# Don't signal anything except ClientRemoved
3444
2125
c.disable(quiet=True)
3445
# Emit D-Bus signal for removal
3446
self.client_removed_signal(c)
2126
# Emit D-Bus signal
2127
self.ClientRemoved(object_path, c.name)
3447
2128
return
3448
2129
raise KeyError(object_path)
3449
2130
3450
2131
del _interface
3451
3452
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3453
out_signature="a{oa{sa{sv}}}")
3454
def GetManagedObjects(self):
3455
"""D-Bus method"""
3456
return dbus.Dictionary(
3457
{client.dbus_object_path:
3458
dbus.Dictionary(
3459
{interface: client.GetAll(interface)
3460
for interface in
3461
client._get_all_interface_names()})
3462
for client in tcp_server.clients.values()})
3463
3464
def client_added_signal(self, client):
3465
"""Send the new standard signal and the old signal"""
3466
if use_dbus:
3467
# New standard signal
3468
self.InterfacesAdded(
3469
client.dbus_object_path,
3470
dbus.Dictionary(
3471
{interface: client.GetAll(interface)
3472
for interface in
3473
client._get_all_interface_names()}))
3474
# Old signal
3475
self.ClientAdded(client.dbus_object_path)
3476
3477
def client_removed_signal(self, client):
3478
"""Send the new standard signal and the old signal"""
3479
if use_dbus:
3480
# New standard signal
3481
self.InterfacesRemoved(
3482
client.dbus_object_path,
3483
client._get_all_interface_names())
3484
# Old signal
3485
self.ClientRemoved(client.dbus_object_path,
3486
client.name)
3487
3488
mandos_dbus_service = MandosDBusService()
3489
3490
# Save modules to variables to exempt the modules from being
3491
# unloaded before the function registered with atexit() is run.
3492
mp = multiprocessing
3493
wn = wnull
3494
2132
2133
class MandosDBusServiceTransitional(MandosDBusService):
2134
__metaclass__ = AlternateDBusNamesMetaclass
2135
mandos_dbus_service = MandosDBusServiceTransitional()
2136
3495
2137
def cleanup():
3496
2138
"Cleanup function; run on exit"
3497
if zeroconf:
3498
service.cleanup()
3499
3500
mp.active_children()
3501
wn.close()
3502
if not (tcp_server.clients or client_settings):
3503
return
3504
3505
# Store client before exiting. Secrets are encrypted with key
3506
# based on what config file has. If config file is
3507
# removed/edited, old secret will thus be unrecovable.
3508
clients = {}
3509
with PGPEngine() as pgp:
3510
for client in tcp_server.clients.values():
3511
key = client_settings[client.name]["secret"]
3512
client.encrypted_secret = pgp.encrypt(client.secret,
3513
key)
3514
client_dict = {}
3515
3516
# A list of attributes that can not be pickled
3517
# + secret.
3518
exclude = {"bus", "changedstate", "secret",
3519
"checker", "server_settings"}
3520
for name, typ in inspect.getmembers(dbus.service
3521
.Object):
3522
exclude.add(name)
3523
3524
client_dict["encrypted_secret"] = (client
3525
.encrypted_secret)
3526
for attr in client.client_structure:
3527
if attr not in exclude:
3528
client_dict[attr] = getattr(client, attr)
3529
3530
clients[client.name] = client_dict
3531
del client_settings[client.name]["secret"]
3532
3533
try:
3534
with tempfile.NamedTemporaryFile(
3535
mode='wb',
3536
suffix=".pickle",
3537
prefix='clients-',
3538
dir=os.path.dirname(stored_state_path),
3539
delete=False) as stored_state:
3540
pickle.dump((clients, client_settings), stored_state,
3541
protocol=2)
3542
tempname = stored_state.name
3543
os.rename(tempname, stored_state_path)
3544
except (IOError, OSError) as e:
3545
if not debug:
3546
try:
3547
os.remove(tempname)
3548
except NameError:
3549
pass
3550
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3551
logger.warning("Could not save persistent state: {}"
3552
.format(os.strerror(e.errno)))
3553
else:
3554
logger.warning("Could not save persistent state:",
3555
exc_info=e)
3556
raise
3557
3558
# Delete all clients, and settings from config
2139
service.cleanup()
2140
2141
multiprocessing.active_children()
3559
2142
while tcp_server.clients:
3560
name, client = tcp_server.clients.popitem()
2143
client = tcp_server.clients.pop()
3561
2144
if use_dbus:
3562
2145
client.remove_from_connection()
3563
# Don't signal the disabling
2146
client.disable_hook = None
2147
# Don't signal anything except ClientRemoved
3564
2148
client.disable(quiet=True)
3565
# Emit D-Bus signal for removal
3566
2149
if use_dbus:
3567
mandos_dbus_service.client_removed_signal(client)
3568
client_settings.clear()
3569
2150
# Emit D-Bus signal
2151
mandos_dbus_service.ClientRemoved(client
2152
.dbus_object_path,
2153
client.name)
2154
3570
2155
atexit.register(cleanup)
3571
3572
for client in tcp_server.clients.values():
2156
2157
for client in tcp_server.clients:
3573
2158
if use_dbus:
3574
# Emit D-Bus signal for adding
3575
mandos_dbus_service.client_added_signal(client)
3576
# Need to initiate checking of clients
3577
if client.enabled:
3578
client.init_checker()
3579
2159
# Emit D-Bus signal
2160
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2161
client.enable()
2162
3580
2163
tcp_server.enable()
3581
2164
tcp_server.server_activate()
3582
2165
3583
2166
# Find out what port we got
3584
if zeroconf:
3585
service.port = tcp_server.socket.getsockname()[1]
2167
service.port = tcp_server.socket.getsockname()[1]
3586
2168
if use_ipv6:
3587
2169
logger.info("Now listening on address %r, port %d,"
3588
" flowinfo %d, scope_id %d",
3589
*tcp_server.socket.getsockname())
2170
" flowinfo %d, scope_id %d"
2171
% tcp_server.socket.getsockname())
3590
2172
else: # IPv4
3591
logger.info("Now listening on address %r, port %d",
3592
*tcp_server.socket.getsockname())
3593
3594
# service.interface = tcp_server.socket.getsockname()[3]
3595
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
3596
2178
try:
3597
if zeroconf:
3598
# From the Avahi example code
3599
try:
3600
service.activate()
3601
except dbus.exceptions.DBusException as error:
3602
logger.critical("D-Bus Exception", exc_info=error)
3603
cleanup()
3604
sys.exit(1)
3605
# End of Avahi example code
3606
3607
GLib.io_add_watch(
3608
GLib.IOChannel.unix_new(tcp_server.fileno()),
3609
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3610
lambda *args, **kwargs: (tcp_server.handle_request
3611
(*args[2:], **kwargs) or True))
3612
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
3613
2193
logger.debug("Starting main loop")
3614
2194
main_loop.run()
3615
2195
except AvahiError as error:
3616
logger.critical("Avahi Error", exc_info=error)
2196
logger.critical("AvahiError: %s", error)
3617
2197
cleanup()
3618
2198
sys.exit(1)
3619
2199
except KeyboardInterrupt:
3624
2204
# Must run before the D-Bus bus name gets deregistered
3625
2205
cleanup()
3626
2206
3627
3628
def should_only_run_tests():
3629
parser = argparse.ArgumentParser(add_help=False)
3630
parser.add_argument("--check", action='store_true')
3631
args, unknown_args = parser.parse_known_args()
3632
run_tests = args.check
3633
if run_tests:
3634
# Remove --check argument from sys.argv
3635
sys.argv[1:] = unknown_args
3636
return run_tests
3637
3638
# Add all tests from doctest strings
3639
def load_tests(loader, tests, none):
3640
import doctest
3641
tests.addTests(doctest.DocTestSuite())
3642
return tests
3643
2207
3644
2208
if __name__ == '__main__':
3645
try:
3646
if should_only_run_tests():
3647
# Call using ./mandos --check [--verbose]
3648
unittest.main()
3649
else:
3650
main()
3651
finally:
3652
logging.shutdown()
2209
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0