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- Committer: teddy at recompile
- Date: 2020-02-05 20:32:33 UTC
- mto: This revision was merged to the branch mainline in revision 396.
- Revision ID: teddy@recompile.se-20200205203233-450ojm36jseglq4m
Server: Stagger checker runs when creating clients
To avoid checkers for all clients all running at the same time
periodically, schedule every initially scheduled future checker to run
at a time in the future a random amount of the interval, from the
current time.
* mandos (Client.init_checker): Schedule the first scheduled future
run of a checker to be a randomly chosen amount of this client's
"interval" (instead of a full interval).
To avoid checkers for all clients all running at the same time
periodically, schedule every initially scheduled future checker to run
at a time in the future a random amount of the interval, from the
current time.
* mandos (Client.init_checker): Schedule the first scheduled future
run of a checker to be a randomly chosen amount of this client's
"interval" (instead of a full interval).
- files added:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
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
#
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 © 2008-2011 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
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
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
32
# Contact the authors at <mandos@recompile.se>.
32
#
33
#
33
34
34
35
from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
36
37
37
import SocketServer as socketserver
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
38
47
import socket
39
48
import argparse
40
49
import datetime
41
50
import errno
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
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
49
55
import sys
50
56
import re
51
57
import os
60
66
import struct
61
67
import fcntl
62
68
import functools
63
import cPickle as pickle
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
64
73
import multiprocessing
65
74
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
66
82
67
83
import dbus
68
84
import dbus.service
69
import gobject
70
import avahi
85
import gi
86
from gi.repository import GLib
71
87
from dbus.mainloop.glib import DBusGMainLoop
72
88
import ctypes
73
89
import ctypes.util
74
90
import xml.dom.minidom
75
91
import inspect
76
92
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:
77
103
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:
78
106
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
79
107
except AttributeError:
80
108
try:
109
# This is where SO_BINDTODEVICE was up to and including Python
110
# 2.6, and also 3.2:
81
111
from IN import SO_BINDTODEVICE
82
112
except ImportError:
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)
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
103
315
104
316
class AvahiError(Exception):
105
317
def __init__(self, value, *args, **kwargs):
106
318
self.value = value
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
319
return super(AvahiError, self).__init__(value, *args,
320
**kwargs)
321
110
322
111
323
class AvahiServiceError(AvahiError):
112
324
pass
113
325
326
114
327
class AvahiGroupError(AvahiError):
115
328
pass
116
329
117
330
118
class AvahiService(object):
331
class AvahiService:
119
332
"""An Avahi (Zeroconf) service.
120
333
121
334
Attributes:
122
335
interface: integer; avahi.IF_UNSPEC or an interface index.
123
336
Used to optionally bind to the specified interface.
124
337
name: string; Example: 'Mandos'
125
338
type: string; Example: '_mandos._tcp'.
126
See <http://www.dns-sd.org/ServiceTypes.html>
339
See <https://www.iana.org/assignments/service-names-port-numbers>
127
340
port: integer; what port to announce
128
341
TXT: list of strings; TXT record for the service
129
342
domain: string; Domain to publish on, default to .local if empty.
135
348
server: D-Bus Server
136
349
bus: dbus.SystemBus()
137
350
"""
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):
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):
142
363
self.interface = interface
143
364
self.name = name
144
365
self.type = servicetype
153
374
self.server = None
154
375
self.bus = bus
155
376
self.entry_group_state_changed_match = None
156
def rename(self):
377
378
def rename(self, remove=True):
157
379
"""Derived from the Avahi example code"""
158
380
if self.rename_count >= self.max_renames:
159
381
logger.critical("No suitable Zeroconf service name found"
160
382
" after %i retries, exiting.",
161
383
self.rename_count)
162
384
raise AvahiServiceError("Too many renames")
163
self.name = unicode(self.server
164
.GetAlternativeServiceName(self.name))
385
self.name = str(
386
self.server.GetAlternativeServiceName(self.name))
387
self.rename_count += 1
165
388
logger.info("Changing Zeroconf service name to %r ...",
166
389
self.name)
167
syslogger.setFormatter(logging.Formatter
168
('Mandos (%s) [%%(process)d]:'
169
' %%(levelname)s: %%(message)s'
170
% self.name))
171
self.remove()
390
if remove:
391
self.remove()
172
392
try:
173
393
self.add()
174
394
except dbus.exceptions.DBusException as error:
175
logger.critical("DBusException: %s", error)
176
self.cleanup()
177
os._exit(1)
178
self.rename_count += 1
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
179
404
def remove(self):
180
405
"""Derived from the Avahi example code"""
181
406
if self.entry_group_state_changed_match is not None:
183
408
self.entry_group_state_changed_match = None
184
409
if self.group is not None:
185
410
self.group.Reset()
411
186
412
def add(self):
187
413
"""Derived from the Avahi example code"""
188
414
self.remove()
193
419
avahi.DBUS_INTERFACE_ENTRY_GROUP)
194
420
self.entry_group_state_changed_match = (
195
421
self.group.connect_to_signal(
196
'StateChanged', self .entry_group_state_changed))
422
'StateChanged', self.entry_group_state_changed))
197
423
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
198
424
self.name, self.type)
199
425
self.group.AddService(
205
431
dbus.UInt16(self.port),
206
432
avahi.string_array_to_txt_array(self.TXT))
207
433
self.group.Commit()
434
208
435
def entry_group_state_changed(self, state, error):
209
436
"""Derived from the Avahi example code"""
210
437
logger.debug("Avahi entry group state change: %i", state)
211
438
212
439
if state == avahi.ENTRY_GROUP_ESTABLISHED:
213
440
logger.debug("Zeroconf service established.")
214
441
elif state == avahi.ENTRY_GROUP_COLLISION:
216
443
self.rename()
217
444
elif state == avahi.ENTRY_GROUP_FAILURE:
218
445
logger.critical("Avahi: Error in group state changed %s",
219
unicode(error))
220
raise AvahiGroupError("State changed: %s"
221
% unicode(error))
446
str(error))
447
raise AvahiGroupError("State changed: {!s}".format(error))
448
222
449
def cleanup(self):
223
450
"""Derived from the Avahi example code"""
224
451
if self.group is not None:
225
452
try:
226
453
self.group.Free()
227
454
except (dbus.exceptions.UnknownMethodException,
228
dbus.exceptions.DBusException) as e:
455
dbus.exceptions.DBusException):
229
456
pass
230
457
self.group = None
231
458
self.remove()
459
232
460
def server_state_changed(self, state, error=None):
233
461
"""Derived from the Avahi example code"""
234
462
logger.debug("Avahi server state change: %i", state)
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" }
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
}
242
469
if state in bad_states:
243
470
if bad_states[state] is not None:
244
471
if error is None:
247
474
logger.error(bad_states[state] + ": %r", error)
248
475
self.cleanup()
249
476
elif state == avahi.SERVER_RUNNING:
250
self.add()
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)
251
489
else:
252
490
if error is None:
253
491
logger.debug("Unknown state: %r", state)
254
492
else:
255
493
logger.debug("Unknown state: %r: %r", state, error)
494
256
495
def activate(self):
257
496
"""Derived from the Avahi example code"""
258
497
if self.server is None:
262
501
follow_name_owner_changes=True),
263
502
avahi.DBUS_INTERFACE_SERVER)
264
503
self.server.connect_to_signal("StateChanged",
265
self.server_state_changed)
504
self.server_state_changed)
266
505
self.server_state_changed(self.server.GetState())
267
506
268
507
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):
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:
276
831
"""A representation of a client host served by this server.
277
832
278
833
Attributes:
279
_approved: bool(); 'None' if not yet approved/disapproved
834
approved: bool(); 'None' if not yet approved/disapproved
280
835
approval_delay: datetime.timedelta(); Time to wait for approval
281
836
approval_duration: datetime.timedelta(); Duration of one approval
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
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
286
841
checker_command: string; External command which is run to check
287
842
if client lives. %() expansions are done at
288
843
runtime with vars(self) as dict, so that for
289
844
instance %(name)s can be used in the command.
290
checker_initiator_tag: a gobject event source tag, or None
845
checker_initiator_tag: a GLib event source tag, or None
291
846
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
292
849
current_checker_command: string; current running checker_command
293
disable_hook: If set, called by disable() as disable_hook(self)
294
disable_initiator_tag: a gobject event source tag, or None
850
disable_initiator_tag: a GLib event source tag, or None
295
851
enabled: bool()
296
852
fingerprint: string (40 or 32 hexadecimal digits); used to
297
uniquely identify the client
853
uniquely identify an OpenPGP client
854
key_id: string (64 hexadecimal digits); used to uniquely identify
855
a client using raw public keys
298
856
host: string; available for use by the checker command
299
857
interval: datetime.timedelta(); How often to start a new checker
300
858
last_approval_request: datetime.datetime(); (UTC) or None
301
859
last_checked_ok: datetime.datetime(); (UTC) or None
302
last_enabled: datetime.datetime(); (UTC)
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
303
866
name: string; from the config file, used in log messages and
304
867
D-Bus identifiers
305
868
secret: bytestring; sent verbatim (over TLS) to client
306
869
timeout: datetime.timedelta(); How long from last_checked_ok
307
870
until this client is disabled
308
extended_timeout: extra long timeout when password has been sent
871
extended_timeout: extra long timeout when secret has been sent
309
872
runtime_expansions: Allowed attributes for runtime expansion.
310
873
expires: datetime.datetime(); time (UTC) when a client will be
311
874
disabled, or None
875
server_settings: The server_settings dict from main()
312
876
"""
313
877
314
878
runtime_expansions = ("approval_delay", "approval_duration",
315
"created", "enabled", "fingerprint",
316
"host", "interval", "last_checked_ok",
879
"created", "enabled", "expires", "key_id",
880
"fingerprint", "host", "interval",
881
"last_approval_request", "last_checked_ok",
317
882
"last_enabled", "name", "timeout")
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."""
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):
338
950
self.name = name
339
if config is None:
340
config = {}
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
341
968
logger.debug("Creating client %r", self.name)
342
# Uppercase and remove spaces from fingerprint for later
343
# comparison purposes with return value from the fingerprint()
344
# function
345
self.fingerprint = (config["fingerprint"].upper()
346
.replace(" ", ""))
969
logger.debug(" Key ID: %s", self.key_id)
347
970
logger.debug(" Fingerprint: %s", self.fingerprint)
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
971
self.created = settings.get("created",
972
datetime.datetime.utcnow())
973
974
# attributes specific for this server instance
369
975
self.checker = None
370
976
self.checker_initiator_tag = None
371
977
self.disable_initiator_tag = None
372
self.expires = None
373
978
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
375
979
self.current_checker_command = None
376
self.last_connect = None
377
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
379
True)
980
self.approved = None
380
981
self.approvals_pending = 0
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
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
389
995
def send_changedstate(self):
390
self.changedstate.acquire()
391
self.changedstate.notify_all()
392
self.changedstate.release()
393
996
with self.changedstate:
997
self.changedstate.notify_all()
998
394
999
def enable(self):
395
1000
"""Start this client's checker and timeout hooks"""
396
1001
if getattr(self, "enabled", False):
397
1002
# Already enabled
398
1003
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
406
1004
self.expires = datetime.datetime.utcnow() + self.timeout
407
self.disable_initiator_tag = (gobject.timeout_add
408
(self.timeout_milliseconds(),
409
self.disable))
410
1005
self.enabled = True
411
1006
self.last_enabled = datetime.datetime.utcnow()
412
# Also start a new checker *right now*.
413
self.start_checker()
414
1007
self.init_checker()
1008
self.send_changedstate()
1009
415
1010
def disable(self, quiet=True):
416
1011
"""Disable this client."""
417
1012
if not getattr(self, "enabled", False):
418
1013
return False
419
1014
if not quiet:
420
self.send_changedstate()
421
if not quiet:
422
1015
logger.info("Disabling client %s", self.name)
423
if getattr(self, "disable_initiator_tag", False):
424
gobject.source_remove(self.disable_initiator_tag)
1016
if getattr(self, "disable_initiator_tag", None) is not None:
1017
GLib.source_remove(self.disable_initiator_tag)
425
1018
self.disable_initiator_tag = None
426
1019
self.expires = None
427
if getattr(self, "checker_initiator_tag", False):
428
gobject.source_remove(self.checker_initiator_tag)
1020
if getattr(self, "checker_initiator_tag", None) is not None:
1021
GLib.source_remove(self.checker_initiator_tag)
429
1022
self.checker_initiator_tag = None
430
1023
self.stop_checker()
431
if self.disable_hook:
432
self.disable_hook(self)
433
1024
self.enabled = False
434
# Do not run this again if called by a gobject.timeout_add
1025
if not quiet:
1026
self.send_changedstate()
1027
# Do not run this again if called by a GLib.timeout_add
435
1028
return False
436
1029
437
1030
def __del__(self):
438
self.disable_hook = None
439
1031
self.disable()
440
441
def checker_callback(self, pid, condition, command):
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):
442
1052
"""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()
443
1058
self.checker_callback_tag = None
444
1059
self.checker = None
445
if os.WIFEXITED(condition):
446
exitstatus = os.WEXITSTATUS(condition)
447
if exitstatus == 0:
1060
1061
if returncode >= 0:
1062
self.last_checker_status = returncode
1063
self.last_checker_signal = None
1064
if self.last_checker_status == 0:
448
1065
logger.info("Checker for %(name)s succeeded",
449
1066
vars(self))
450
1067
self.checked_ok()
451
1068
else:
452
logger.info("Checker for %(name)s failed",
453
vars(self))
1069
logger.info("Checker for %(name)s failed", vars(self))
454
1070
else:
1071
self.last_checker_status = -1
1072
self.last_checker_signal = -returncode
455
1073
logger.warning("Checker for %(name)s crashed?",
456
1074
vars(self))
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
"""
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."""
464
1086
if timeout is None:
465
1087
timeout = self.timeout
466
self.last_checked_ok = datetime.datetime.utcnow()
467
1088
if self.disable_initiator_tag is not None:
468
gobject.source_remove(self.disable_initiator_tag)
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = None
469
1091
if getattr(self, "enabled", False):
470
self.disable_initiator_tag = (gobject.timeout_add
471
(_timedelta_to_milliseconds
472
(timeout), self.disable))
1092
self.disable_initiator_tag = GLib.timeout_add(
1093
int(timeout.total_seconds() * 1000), self.disable)
473
1094
self.expires = datetime.datetime.utcnow() + timeout
474
1095
475
1096
def need_approval(self):
476
1097
self.last_approval_request = datetime.datetime.utcnow()
477
1098
478
1099
def start_checker(self):
479
1100
"""Start a new checker subprocess if one is not running.
480
1101
481
1102
If a checker already exists, leave it running and do
482
1103
nothing."""
483
1104
# The reason for not killing a running checker is that if we
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
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
488
1109
# checkers alone, the checker would have to take more time
489
1110
# than 'timeout' for the client to be disabled, which is as it
490
1111
# should be.
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)
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
505
1117
# Start a new checker if needed
506
1118
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}
507
1123
try:
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
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
526
1130
self.current_checker_command = command
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
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
551
1158
return True
552
1159
553
1160
def stop_checker(self):
554
1161
"""Force the checker process, if any, to stop."""
555
1162
if self.checker_callback_tag:
556
gobject.source_remove(self.checker_callback_tag)
1163
GLib.source_remove(self.checker_callback_tag)
557
1164
self.checker_callback_tag = None
558
1165
if getattr(self, "checker", None) is None:
559
1166
return
560
1167
logger.debug("Stopping checker for %(name)s", vars(self))
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
1168
self.checker.terminate()
569
1169
self.checker = None
570
1170
571
1171
572
def dbus_service_property(dbus_interface, signature="v",
573
access="readwrite", byte_arrays=False):
1172
def dbus_service_property(dbus_interface,
1173
signature="v",
1174
access="readwrite",
1175
byte_arrays=False):
574
1176
"""Decorators for marking methods of a DBusObjectWithProperties to
575
1177
become properties on the D-Bus.
576
1178
577
1179
The decorated method will be called with no arguments by "Get"
578
1180
and with one argument by "Set".
579
1181
580
1182
The parameters, where they are supported, are the same as
581
1183
dbus.service.method, except there is only "signature", since the
582
1184
type from Get() and the type sent to Set() is the same.
585
1187
# "Set" method, so we fail early here:
586
1188
if byte_arrays and signature != "ay":
587
1189
raise ValueError("Byte arrays not supported for non-'ay'"
588
" signature %r" % signature)
1190
" signature {!r}".format(signature))
1191
589
1192
def decorator(func):
590
1193
func._dbus_is_property = True
591
1194
func._dbus_interface = dbus_interface
594
1197
func._dbus_name = func.__name__
595
1198
if func._dbus_name.endswith("_dbus_property"):
596
1199
func._dbus_name = func._dbus_name[:-14]
597
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
598
return func
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
599
1246
return decorator
600
1247
601
1248
602
1249
class DBusPropertyException(dbus.exceptions.DBusException):
603
1250
"""A base class for D-Bus property-related exceptions
604
1251
"""
605
def __unicode__(self):
606
return unicode(str(self))
1252
pass
607
1253
608
1254
609
1255
class DBusPropertyAccessException(DBusPropertyException):
618
1264
pass
619
1265
620
1266
621
class DBusObjectWithProperties(dbus.service.Object):
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):
622
1357
"""A D-Bus object with properties.
623
1358
624
1359
Classes inheriting from this can use the dbus_service_property
625
1360
decorator to expose methods as D-Bus properties. It exposes the
626
1361
standard Get(), Set(), and GetAll() methods on the D-Bus.
627
1362
"""
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
1363
641
1364
def _get_dbus_property(self, interface_name, property_name):
642
1365
"""Returns a bound method if one exists which is a D-Bus
643
1366
property with the specified name and interface.
644
1367
"""
645
for cls in self.__class__.__mro__:
646
for name, value in (inspect.getmembers
647
(cls, self._is_dbus_property)):
1368
for cls in self.__class__.__mro__:
1369
for name, value in inspect.getmembers(
1370
cls, self._is_dbus_thing("property")):
648
1371
if (value._dbus_name == property_name
649
1372
and value._dbus_interface == interface_name):
650
1373
return value.__get__(self)
651
1374
652
1375
# No such property
653
raise DBusPropertyNotFound(self.dbus_object_path + ":"
654
+ interface_name + "."
655
+ property_name)
656
657
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
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",
658
1390
out_signature="v")
659
1391
def Get(self, interface_name, property_name):
660
1392
"""Standard D-Bus property Get() method, see D-Bus standard.
666
1398
if not hasattr(value, "variant_level"):
667
1399
return value
668
1400
return type(value)(value, variant_level=value.variant_level+1)
669
1401
670
1402
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
671
1403
def Set(self, interface_name, property_name, value):
672
1404
"""Standard D-Bus property Set() method, see D-Bus standard.
678
1410
# The byte_arrays option is not supported yet on
679
1411
# signatures other than "ay".
680
1412
if prop._dbus_signature != "ay":
681
raise ValueError
682
value = dbus.ByteArray(''.join(unichr(byte)
683
for byte in value))
1413
raise ValueError("Byte arrays not supported for non-"
1414
"'ay' signature {!r}"
1415
.format(prop._dbus_signature))
1416
value = dbus.ByteArray(bytes(value))
684
1417
prop(value)
685
686
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1418
1419
@dbus.service.method(dbus.PROPERTIES_IFACE,
1420
in_signature="s",
687
1421
out_signature="a{sv}")
688
1422
def GetAll(self, interface_name):
689
1423
"""Standard D-Bus property GetAll() method, see D-Bus
690
1424
standard.
691
1425
692
1426
Note: Will not include properties with access="write".
693
1427
"""
694
all = {}
695
for name, prop in self._get_all_dbus_properties():
1428
properties = {}
1429
for name, prop in self._get_all_dbus_things("property"):
696
1430
if (interface_name
697
1431
and interface_name != prop._dbus_interface):
698
1432
# Interface non-empty but did not match
702
1436
continue
703
1437
value = prop()
704
1438
if not hasattr(value, "variant_level"):
705
all[name] = value
1439
properties[name] = value
706
1440
continue
707
all[name] = type(value)(value, variant_level=
708
value.variant_level+1)
709
return dbus.Dictionary(all, signature="sv")
710
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
711
1453
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
712
1454
out_signature="s",
713
1455
path_keyword='object_path',
714
1456
connection_keyword='connection')
715
1457
def Introspect(self, object_path, connection):
716
"""Standard D-Bus method, overloaded to insert property tags.
1458
"""Overloading of standard D-Bus method.
1459
1460
Inserts property tags and interface annotation tags.
717
1461
"""
718
xmlstring = dbus.service.Object.Introspect(self, object_path,
719
connection)
1462
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1463
object_path,
1464
connection)
720
1465
try:
721
1466
document = xml.dom.minidom.parseString(xmlstring)
1467
722
1468
def make_tag(document, name, prop):
723
1469
e = document.createElement("property")
724
1470
e.setAttribute("name", name)
725
1471
e.setAttribute("type", prop._dbus_signature)
726
1472
e.setAttribute("access", prop._dbus_access)
727
1473
return e
1474
728
1475
for if_tag in document.getElementsByTagName("interface"):
1476
# Add property tags
729
1477
for tag in (make_tag(document, name, prop)
730
1478
for name, prop
731
in self._get_all_dbus_properties()
1479
in self._get_all_dbus_things("property")
732
1480
if prop._dbus_interface
733
1481
== if_tag.getAttribute("name")):
734
1482
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)
735
1499
# Add the names to the return values for the
736
1500
# "org.freedesktop.DBus.Properties" methods
737
1501
if (if_tag.getAttribute("name")
752
1516
except (AttributeError, xml.dom.DOMException,
753
1517
xml.parsers.expat.ExpatError) as error:
754
1518
logger.error("Failed to override Introspection method",
755
error)
756
return xmlstring
757
758
759
def datetime_to_dbus (dt, variant_level=0):
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):
760
1595
"""Convert a UTC datetime.datetime() to a D-Bus type."""
761
1596
if dt is None:
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.
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).
770
1623
"""
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):
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):
778
1632
# Ignore non-D-Bus attributes, and D-Bus attributes
779
1633
# with the wrong interface name
780
1634
if (not hasattr(attribute, "_dbus_interface")
781
or not attribute._dbus_interface
782
.startswith("se.recompile.Mandos")):
1635
or not attribute._dbus_interface.startswith(
1636
orig_interface_name)):
783
1637
continue
784
1638
# Create an alternate D-Bus interface name based on
785
1639
# the current name
786
alt_interface = (attribute._dbus_interface
787
.replace("se.recompile.Mandos",
788
"se.bsnet.fukt.Mandos"))
1640
alt_interface = attribute._dbus_interface.replace(
1641
orig_interface_name, alt_interface_name)
1642
interface_names.add(alt_interface)
789
1643
# Is this a D-Bus signal?
790
1644
if getattr(attribute, "_dbus_is_signal", False):
791
# Extract the original non-method function by
792
# black magic
793
nonmethod_func = (dict(
1645
# Extract the original non-method undecorated
1646
# function by black magic
1647
if sys.version_info.major == 2:
1648
nonmethod_func = (dict(
794
1649
zip(attribute.func_code.co_freevars,
795
attribute.__closure__))["func"]
796
.cell_contents)
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)
797
1657
# Create a new, but exactly alike, function
798
1658
# object, and decorate it to be a new D-Bus signal
799
1659
# with the alternate D-Bus interface name
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)))
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
809
1671
# Define a creator of a function to call both the
810
# old and new functions, so both the old and new
811
# signals gets sent when the function is called
1672
# original and alternate functions, so both the
1673
# original and alternate signals gets sent when
1674
# the function is called
812
1675
def fixscope(func1, func2):
813
1676
"""This function is a scope container to pass
814
1677
func1 and func2 to the "call_both" function
815
1678
outside of its arguments"""
1679
1680
@functools.wraps(func2)
816
1681
def call_both(*args, **kwargs):
817
1682
"""This function will emit two D-Bus
818
1683
signals by calling func1 and func2"""
819
1684
func1(*args, **kwargs)
820
1685
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
821
1692
return call_both
822
1693
# Create the "call_both" function and add it to
823
1694
# the class
824
attr[attrname] = fixscope(attribute,
825
new_function)
1695
attr[attrname] = fixscope(attribute, new_function)
826
1696
# Is this a D-Bus method?
827
1697
elif getattr(attribute, "_dbus_is_method", False):
828
1698
# Create a new, but exactly alike, function
829
1699
# object. Decorate it to be a new D-Bus method
830
1700
# with the alternate D-Bus interface name. Add it
831
1701
# to the class.
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)))
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
842
1714
# Is this a D-Bus property?
843
1715
elif getattr(attribute, "_dbus_is_property", False):
844
1716
# Create a new, but exactly alike, function
845
1717
# object, and decorate it to be a new D-Bus
846
1718
# property with the alternate D-Bus interface
847
1719
# name. Add it to the class.
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
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"})
863
1772
class ClientDBus(Client, DBusObjectWithProperties):
864
1773
"""A Client class using D-Bus
865
1774
866
1775
Attributes:
867
1776
dbus_object_path: dbus.ObjectPath
868
1777
bus: dbus.SystemBus()
869
1778
"""
870
1779
871
1780
runtime_expansions = (Client.runtime_expansions
872
+ ("dbus_object_path",))
873
1781
+ ("dbus_object_path", ))
1782
1783
_interface = "se.recompile.Mandos.Client"
1784
874
1785
# dbus.service.Object doesn't use super(), so we can't either.
875
876
def __init__(self, bus = None, *args, **kwargs):
877
self._approvals_pending = 0
1786
1787
def __init__(self, bus=None, *args, **kwargs):
878
1788
self.bus = bus
879
1789
Client.__init__(self, *args, **kwargs)
880
1790
# Only now, when this client is initialized, can it show up on
881
1791
# the D-Bus
882
client_object_name = unicode(self.name).translate(
1792
client_object_name = str(self.name).translate(
883
1793
{ord("."): ord("_"),
884
1794
ord("-"): ord("_")})
885
self.dbus_object_path = (dbus.ObjectPath
886
("/clients/" + client_object_name))
1795
self.dbus_object_path = dbus.ObjectPath(
1796
"/clients/" + client_object_name)
887
1797
DBusObjectWithProperties.__init__(self, self.bus,
888
1798
self.dbus_object_path)
889
890
def notifychangeproperty(transform_func,
891
dbus_name, type_func=lambda x: x,
892
variant_level=1):
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):
893
1805
""" Modify a variable so that it's a property which announces
894
1806
its changes to DBus.
895
1807
900
1812
to the D-Bus. Default: no transform
901
1813
variant_level: D-Bus variant level. Default: 1
902
1814
"""
903
attrname = "_{0}".format(dbus_name)
1815
attrname = "_{}".format(dbus_name)
1816
904
1817
def setter(self, value):
905
1818
if hasattr(self, "dbus_object_path"):
906
1819
if (not hasattr(self, attrname) or
907
1820
type_func(getattr(self, attrname, None))
908
1821
!= type_func(value)):
909
dbus_value = transform_func(type_func(value),
910
variant_level
911
=variant_level)
912
self.PropertyChanged(dbus.String(dbus_name),
913
dbus_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())
914
1837
setattr(self, attrname, value)
915
1838
916
1839
return property(lambda self: getattr(self, attrname), setter)
917
918
1840
919
1841
expires = notifychangeproperty(datetime_to_dbus, "Expires")
920
1842
approvals_pending = notifychangeproperty(dbus.Boolean,
921
1843
"ApprovalPending",
922
type_func = bool)
1844
type_func=bool)
923
1845
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
924
1846
last_enabled = notifychangeproperty(datetime_to_dbus,
925
1847
"LastEnabled")
926
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
927
type_func = lambda checker:
928
checker is not None)
1848
checker = notifychangeproperty(
1849
dbus.Boolean, "CheckerRunning",
1850
type_func=lambda checker: checker is not None)
929
1851
last_checked_ok = notifychangeproperty(datetime_to_dbus,
930
1852
"LastCheckedOK")
1853
last_checker_status = notifychangeproperty(dbus.Int16,
1854
"LastCheckerStatus")
931
1855
last_approval_request = notifychangeproperty(
932
1856
datetime_to_dbus, "LastApprovalRequest")
933
1857
approved_by_default = notifychangeproperty(dbus.Boolean,
934
1858
"ApprovedByDefault")
935
approval_delay = notifychangeproperty(dbus.UInt16,
936
"ApprovalDelay",
937
type_func =
938
_timedelta_to_milliseconds)
1859
approval_delay = notifychangeproperty(
1860
dbus.UInt64, "ApprovalDelay",
1861
type_func=lambda td: td.total_seconds() * 1000)
939
1862
approval_duration = notifychangeproperty(
940
dbus.UInt16, "ApprovalDuration",
941
type_func = _timedelta_to_milliseconds)
1863
dbus.UInt64, "ApprovalDuration",
1864
type_func=lambda td: td.total_seconds() * 1000)
942
1865
host = notifychangeproperty(dbus.String, "Host")
943
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
944
type_func =
945
_timedelta_to_milliseconds)
1866
timeout = notifychangeproperty(
1867
dbus.UInt64, "Timeout",
1868
type_func=lambda td: td.total_seconds() * 1000)
946
1869
extended_timeout = notifychangeproperty(
947
dbus.UInt16, "ExtendedTimeout",
948
type_func = _timedelta_to_milliseconds)
949
interval = notifychangeproperty(dbus.UInt16,
950
"Interval",
951
type_func =
952
_timedelta_to_milliseconds)
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)
953
1875
checker_command = notifychangeproperty(dbus.String, "Checker")
954
1876
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1877
invalidate_only=True)
1878
955
1879
del notifychangeproperty
956
1880
957
1881
def __del__(self, *args, **kwargs):
958
1882
try:
959
1883
self.remove_from_connection()
962
1886
if hasattr(DBusObjectWithProperties, "__del__"):
963
1887
DBusObjectWithProperties.__del__(self, *args, **kwargs)
964
1888
Client.__del__(self, *args, **kwargs)
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)
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:
972
1897
# Emit D-Bus signal
973
1898
self.CheckerCompleted(dbus.Int16(exitstatus),
974
dbus.Int64(condition),
1899
# This is specific to GNU libC
1900
dbus.Int64(exitstatus << 8),
975
1901
dbus.String(command))
976
1902
else:
977
1903
# Emit D-Bus signal
978
1904
self.CheckerCompleted(dbus.Int16(-1),
979
dbus.Int64(condition),
1905
dbus.Int64(
1906
# This is specific to GNU libC
1907
(exitstatus << 8)
1908
| self.last_checker_signal),
980
1909
dbus.String(command))
981
982
return Client.checker_callback(self, pid, condition, command,
983
*args, **kwargs)
984
1910
return ret
1911
985
1912
def start_checker(self, *args, **kwargs):
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
1913
old_checker_pid = getattr(self.checker, "pid", None)
991
1914
r = Client.start_checker(self, *args, **kwargs)
992
1915
# Only if new checker process was started
993
1916
if (self.checker is not None
995
1918
# Emit D-Bus signal
996
1919
self.CheckerStarted(self.current_checker_command)
997
1920
return r
998
1921
999
1922
def _reset_approved(self):
1000
self._approved = None
1923
self.approved = None
1001
1924
return False
1002
1925
1003
1926
def approve(self, value=True):
1927
self.approved = value
1928
GLib.timeout_add(int(self.approval_duration.total_seconds()
1929
* 1000), self._reset_approved)
1004
1930
self.send_changedstate()
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
1931
1932
# D-Bus methods, signals & properties
1933
1934
# Interfaces
1935
1936
# Signals
1937
1016
1938
# CheckerCompleted - signal
1017
1939
@dbus.service.signal(_interface, signature="nxs")
1018
1940
def CheckerCompleted(self, exitcode, waitstatus, command):
1019
1941
"D-Bus signal"
1020
1942
pass
1021
1943
1022
1944
# CheckerStarted - signal
1023
1945
@dbus.service.signal(_interface, signature="s")
1024
1946
def CheckerStarted(self, command):
1025
1947
"D-Bus signal"
1026
1948
pass
1027
1949
1028
1950
# PropertyChanged - signal
1951
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1029
1952
@dbus.service.signal(_interface, signature="sv")
1030
1953
def PropertyChanged(self, property, value):
1031
1954
"D-Bus signal"
1032
1955
pass
1033
1956
1034
1957
# GotSecret - signal
1035
1958
@dbus.service.signal(_interface)
1036
1959
def GotSecret(self):
1039
1962
server to mandos-client
1040
1963
"""
1041
1964
pass
1042
1965
1043
1966
# Rejected - signal
1044
1967
@dbus.service.signal(_interface, signature="s")
1045
1968
def Rejected(self, reason):
1046
1969
"D-Bus signal"
1047
1970
pass
1048
1971
1049
1972
# NeedApproval - signal
1050
1973
@dbus.service.signal(_interface, signature="tb")
1051
1974
def NeedApproval(self, timeout, default):
1052
1975
"D-Bus signal"
1053
1976
return self.need_approval()
1054
1055
## Methods
1056
1977
1978
# Methods
1979
1057
1980
# Approve - method
1058
1981
@dbus.service.method(_interface, in_signature="b")
1059
1982
def Approve(self, value):
1060
1983
self.approve(value)
1061
1984
1062
1985
# CheckedOK - method
1063
1986
@dbus.service.method(_interface)
1064
1987
def CheckedOK(self):
1065
1988
self.checked_ok()
1066
1989
1067
1990
# Enable - method
1991
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1068
1992
@dbus.service.method(_interface)
1069
1993
def Enable(self):
1070
1994
"D-Bus method"
1071
1995
self.enable()
1072
1996
1073
1997
# StartChecker - method
1998
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1074
1999
@dbus.service.method(_interface)
1075
2000
def StartChecker(self):
1076
2001
"D-Bus method"
1077
2002
self.start_checker()
1078
2003
1079
2004
# Disable - method
2005
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1080
2006
@dbus.service.method(_interface)
1081
2007
def Disable(self):
1082
2008
"D-Bus method"
1083
2009
self.disable()
1084
2010
1085
2011
# StopChecker - method
2012
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1086
2013
@dbus.service.method(_interface)
1087
2014
def StopChecker(self):
1088
2015
self.stop_checker()
1089
1090
## Properties
1091
2016
2017
# Properties
2018
1092
2019
# ApprovalPending - property
1093
2020
@dbus_service_property(_interface, signature="b", access="read")
1094
2021
def ApprovalPending_dbus_property(self):
1095
2022
return dbus.Boolean(bool(self.approvals_pending))
1096
2023
1097
2024
# ApprovedByDefault - property
1098
@dbus_service_property(_interface, signature="b",
2025
@dbus_service_property(_interface,
2026
signature="b",
1099
2027
access="readwrite")
1100
2028
def ApprovedByDefault_dbus_property(self, value=None):
1101
2029
if value is None: # get
1102
2030
return dbus.Boolean(self.approved_by_default)
1103
2031
self.approved_by_default = bool(value)
1104
2032
1105
2033
# ApprovalDelay - property
1106
@dbus_service_property(_interface, signature="t",
2034
@dbus_service_property(_interface,
2035
signature="t",
1107
2036
access="readwrite")
1108
2037
def ApprovalDelay_dbus_property(self, value=None):
1109
2038
if value is None: # get
1110
return dbus.UInt64(self.approval_delay_milliseconds())
2039
return dbus.UInt64(self.approval_delay.total_seconds()
2040
* 1000)
1111
2041
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1112
2042
1113
2043
# ApprovalDuration - property
1114
@dbus_service_property(_interface, signature="t",
2044
@dbus_service_property(_interface,
2045
signature="t",
1115
2046
access="readwrite")
1116
2047
def ApprovalDuration_dbus_property(self, value=None):
1117
2048
if value is None: # get
1118
return dbus.UInt64(_timedelta_to_milliseconds(
1119
self.approval_duration))
2049
return dbus.UInt64(self.approval_duration.total_seconds()
2050
* 1000)
1120
2051
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1121
2052
1122
2053
# Name - property
2054
@dbus_annotations(
2055
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1123
2056
@dbus_service_property(_interface, signature="s", access="read")
1124
2057
def Name_dbus_property(self):
1125
2058
return dbus.String(self.name)
1126
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
1127
2067
# Fingerprint - property
2068
@dbus_annotations(
2069
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1128
2070
@dbus_service_property(_interface, signature="s", access="read")
1129
2071
def Fingerprint_dbus_property(self):
1130
2072
return dbus.String(self.fingerprint)
1131
2073
1132
2074
# Host - property
1133
@dbus_service_property(_interface, signature="s",
2075
@dbus_service_property(_interface,
2076
signature="s",
1134
2077
access="readwrite")
1135
2078
def Host_dbus_property(self, value=None):
1136
2079
if value is None: # get
1137
2080
return dbus.String(self.host)
1138
self.host = value
1139
2081
self.host = str(value)
2082
1140
2083
# Created - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1141
2086
@dbus_service_property(_interface, signature="s", access="read")
1142
2087
def Created_dbus_property(self):
1143
return dbus.String(datetime_to_dbus(self.created))
1144
2088
return datetime_to_dbus(self.created)
2089
1145
2090
# LastEnabled - property
1146
2091
@dbus_service_property(_interface, signature="s", access="read")
1147
2092
def LastEnabled_dbus_property(self):
1148
2093
return datetime_to_dbus(self.last_enabled)
1149
2094
1150
2095
# Enabled - property
1151
@dbus_service_property(_interface, signature="b",
2096
@dbus_service_property(_interface,
2097
signature="b",
1152
2098
access="readwrite")
1153
2099
def Enabled_dbus_property(self, value=None):
1154
2100
if value is None: # get
1157
2103
self.enable()
1158
2104
else:
1159
2105
self.disable()
1160
2106
1161
2107
# LastCheckedOK - property
1162
@dbus_service_property(_interface, signature="s",
2108
@dbus_service_property(_interface,
2109
signature="s",
1163
2110
access="readwrite")
1164
2111
def LastCheckedOK_dbus_property(self, value=None):
1165
2112
if value is not None:
1166
2113
self.checked_ok()
1167
2114
return
1168
2115
return datetime_to_dbus(self.last_checked_ok)
1169
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
1170
2122
# Expires - property
1171
2123
@dbus_service_property(_interface, signature="s", access="read")
1172
2124
def Expires_dbus_property(self):
1173
2125
return datetime_to_dbus(self.expires)
1174
2126
1175
2127
# LastApprovalRequest - property
1176
2128
@dbus_service_property(_interface, signature="s", access="read")
1177
2129
def LastApprovalRequest_dbus_property(self):
1178
2130
return datetime_to_dbus(self.last_approval_request)
1179
2131
1180
2132
# Timeout - property
1181
@dbus_service_property(_interface, signature="t",
2133
@dbus_service_property(_interface,
2134
signature="t",
1182
2135
access="readwrite")
1183
2136
def Timeout_dbus_property(self, value=None):
1184
2137
if value is None: # get
1185
return dbus.UInt64(self.timeout_milliseconds())
2138
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2139
old_timeout = self.timeout
1186
2140
self.timeout = datetime.timedelta(0, 0, 0, value)
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
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
1208
2157
# ExtendedTimeout - property
1209
@dbus_service_property(_interface, signature="t",
2158
@dbus_service_property(_interface,
2159
signature="t",
1210
2160
access="readwrite")
1211
2161
def ExtendedTimeout_dbus_property(self, value=None):
1212
2162
if value is None: # get
1213
return dbus.UInt64(self.extended_timeout_milliseconds())
2163
return dbus.UInt64(self.extended_timeout.total_seconds()
2164
* 1000)
1214
2165
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1215
2166
1216
2167
# Interval - property
1217
@dbus_service_property(_interface, signature="t",
2168
@dbus_service_property(_interface,
2169
signature="t",
1218
2170
access="readwrite")
1219
2171
def Interval_dbus_property(self, value=None):
1220
2172
if value is None: # get
1221
return dbus.UInt64(self.interval_milliseconds())
2173
return dbus.UInt64(self.interval.total_seconds() * 1000)
1222
2174
self.interval = datetime.timedelta(0, 0, 0, value)
1223
2175
if getattr(self, "checker_initiator_tag", None) is None:
1224
2176
return
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
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
1231
2184
# Checker - property
1232
@dbus_service_property(_interface, signature="s",
2185
@dbus_service_property(_interface,
2186
signature="s",
1233
2187
access="readwrite")
1234
2188
def Checker_dbus_property(self, value=None):
1235
2189
if value is None: # get
1236
2190
return dbus.String(self.checker_command)
1237
self.checker_command = value
1238
2191
self.checker_command = str(value)
2192
1239
2193
# CheckerRunning - property
1240
@dbus_service_property(_interface, signature="b",
2194
@dbus_service_property(_interface,
2195
signature="b",
1241
2196
access="readwrite")
1242
2197
def CheckerRunning_dbus_property(self, value=None):
1243
2198
if value is None: # get
1246
2201
self.start_checker()
1247
2202
else:
1248
2203
self.stop_checker()
1249
2204
1250
2205
# ObjectPath - property
2206
@dbus_annotations(
2207
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2208
"org.freedesktop.DBus.Deprecated": "true"})
1251
2209
@dbus_service_property(_interface, signature="o", access="read")
1252
2210
def ObjectPath_dbus_property(self):
1253
return self.dbus_object_path # is already a dbus.ObjectPath
1254
2211
return self.dbus_object_path # is already a dbus.ObjectPath
2212
1255
2213
# Secret = property
1256
@dbus_service_property(_interface, signature="ay",
1257
access="write", byte_arrays=True)
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)
1258
2221
def Secret_dbus_property(self, value):
1259
self.secret = str(value)
1260
2222
self.secret = bytes(value)
2223
1261
2224
del _interface
1262
2225
1263
2226
1264
class ProxyClient(object):
1265
def __init__(self, child_pipe, fpr, address):
2227
class ProxyClient:
2228
def __init__(self, child_pipe, key_id, fpr, address):
1266
2229
self._pipe = child_pipe
1267
self._pipe.send(('init', fpr, address))
2230
self._pipe.send(('init', key_id, fpr, address))
1268
2231
if not self._pipe.recv():
1269
raise KeyError()
1270
2232
raise KeyError(key_id or fpr)
2233
1271
2234
def __getattribute__(self, name):
1272
if(name == '_pipe'):
2235
if name == '_pipe':
1273
2236
return super(ProxyClient, self).__getattribute__(name)
1274
2237
self._pipe.send(('getattr', name))
1275
2238
data = self._pipe.recv()
1276
2239
if data[0] == 'data':
1277
2240
return data[1]
1278
2241
if data[0] == 'function':
2242
1279
2243
def func(*args, **kwargs):
1280
2244
self._pipe.send(('funcall', name, args, kwargs))
1281
2245
return self._pipe.recv()[1]
2246
1282
2247
return func
1283
2248
1284
2249
def __setattr__(self, name, value):
1285
if(name == '_pipe'):
2250
if name == '_pipe':
1286
2251
return super(ProxyClient, self).__setattr__(name, value)
1287
2252
self._pipe.send(('setattr', name, value))
1288
2253
1289
class ClientDBusTransitional(ClientDBus):
1290
__metaclass__ = AlternateDBusNamesMetaclass
1291
2254
1292
2255
class ClientHandler(socketserver.BaseRequestHandler, object):
1293
2256
"""A class to handle client connections.
1294
2257
1295
2258
Instantiated once for each connection to handle it.
1296
2259
Note: This will run in its own forked process."""
1297
2260
1298
2261
def handle(self):
1299
2262
with contextlib.closing(self.server.child_pipe) as child_pipe:
1300
2263
logger.info("TCP connection from: %s",
1301
unicode(self.client_address))
2264
str(self.client_address))
1302
2265
logger.debug("Pipe FD: %d",
1303
2266
self.server.child_pipe.fileno())
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"))
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"))
1319
2274
# Use a fallback default, since this MUST be set.
1320
2275
priority = self.server.gnutls_priority
1321
2276
if priority is None:
1322
2277
priority = "NORMAL"
1323
(gnutls.library.functions
1324
.gnutls_priority_set_direct(session._c_object,
1325
priority, None))
1326
2278
gnutls.priority_set_direct(session._c_object,
2279
priority.encode("utf-8"),
2280
None)
2281
1327
2282
# Start communication using the Mandos protocol
1328
2283
# Get protocol number
1329
2284
line = self.request.makefile().readline()
1330
2285
logger.debug("Protocol version: %r", line)
1331
2286
try:
1332
2287
if int(line.strip().split()[0]) > 1:
1333
raise RuntimeError
2288
raise RuntimeError(line)
1334
2289
except (ValueError, IndexError, RuntimeError) as error:
1335
2290
logger.error("Unknown protocol version: %s", error)
1336
2291
return
1337
2292
1338
2293
# Start GnuTLS connection
1339
2294
try:
1340
2295
session.handshake()
1341
except gnutls.errors.GNUTLSError as error:
2296
except gnutls.Error as error:
1342
2297
logger.warning("Handshake failed: %s", error)
1343
2298
# Do not run session.bye() here: the session is not
1344
2299
# established. Just abandon the request.
1345
2300
return
1346
2301
logger.debug("Handshake succeeded")
1347
2302
1348
2303
approval_required = False
1349
2304
try:
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,
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,
1361
2327
self.client_address)
1362
2328
except KeyError:
1363
2329
return
1364
2330
1365
2331
if client.approval_delay:
1366
2332
delay = client.approval_delay
1367
2333
client.approvals_pending += 1
1368
2334
approval_required = True
1369
2335
1370
2336
while True:
1371
2337
if not client.enabled:
1372
2338
logger.info("Client %s is disabled",
1373
client.name)
2339
client.name)
1374
2340
if self.server.use_dbus:
1375
2341
# Emit D-Bus signal
1376
2342
client.Rejected("Disabled")
1377
2343
return
1378
1379
if client._approved or not client.approval_delay:
1380
#We are approved or approval is disabled
2344
2345
if client.approved or not client.approval_delay:
2346
# We are approved or approval is disabled
1381
2347
break
1382
elif client._approved is None:
2348
elif client.approved is None:
1383
2349
logger.info("Client %s needs approval",
1384
2350
client.name)
1385
2351
if self.server.use_dbus:
1386
2352
# Emit D-Bus signal
1387
2353
client.NeedApproval(
1388
client.approval_delay_milliseconds(),
1389
client.approved_by_default)
2354
client.approval_delay.total_seconds()
2355
* 1000, client.approved_by_default)
1390
2356
else:
1391
2357
logger.warning("Client %s was not approved",
1392
2358
client.name)
1394
2360
# Emit D-Bus signal
1395
2361
client.Rejected("Denied")
1396
2362
return
1397
1398
#wait until timeout or approved
2363
2364
# wait until timeout or approved
1399
2365
time = datetime.datetime.now()
1400
2366
client.changedstate.acquire()
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1403
/ 1000)))
2367
client.changedstate.wait(delay.total_seconds())
1404
2368
client.changedstate.release()
1405
2369
time2 = datetime.datetime.now()
1406
2370
if (time2 - time) >= delay:
1416
2380
break
1417
2381
else:
1418
2382
delay -= time2 - time
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
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
1432
2391
logger.info("Sending secret to %s", client.name)
1433
2392
# bump the timeout using extended_timeout
1434
client.checked_ok(client.extended_timeout)
2393
client.bump_timeout(client.extended_timeout)
1435
2394
if self.server.use_dbus:
1436
2395
# Emit D-Bus signal
1437
2396
client.GotSecret()
1438
2397
1439
2398
finally:
1440
2399
if approval_required:
1441
2400
client.approvals_pending -= 1
1442
2401
try:
1443
2402
session.bye()
1444
except gnutls.errors.GNUTLSError as error:
1445
logger.warning("GnuTLS bye failed")
1446
2403
except gnutls.Error as error:
2404
logger.warning("GnuTLS bye failed",
2405
exc_info=error)
2406
1447
2407
@staticmethod
1448
2408
def peer_certificate(session):
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
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""
1456
2425
list_size = ctypes.c_uint(1)
1457
cert_list = (gnutls.library.functions
1458
.gnutls_certificate_get_peers
2426
cert_list = (gnutls.certificate_get_peers
1459
2427
(session._c_object, ctypes.byref(list_size)))
1460
2428
if not bool(cert_list) and list_size.value != 0:
1461
raise gnutls.errors.GNUTLSError("error getting peer"
1462
" certificate")
2429
raise gnutls.Error("error getting peer certificate")
1463
2430
if list_size.value == 0:
1464
2431
return None
1465
2432
cert = cert_list[0]
1466
2433
return ctypes.string_at(cert.data, cert.size)
1467
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
1468
2469
@staticmethod
1469
2470
def fingerprint(openpgp):
1470
2471
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1471
2472
# New GnuTLS "datum" with the OpenPGP public key
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))))
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)))
1477
2477
# New empty GnuTLS certificate
1478
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1479
(gnutls.library.functions
1480
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2478
crt = gnutls.openpgp_crt_t()
2479
gnutls.openpgp_crt_init(ctypes.byref(crt))
1481
2480
# Import the OpenPGP public key into the certificate
1482
(gnutls.library.functions
1483
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1484
gnutls.library.constants
1485
.GNUTLS_OPENPGP_FMT_RAW))
2481
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2482
gnutls.OPENPGP_FMT_RAW)
1486
2483
# Verify the self signature in the key
1487
2484
crtverify = ctypes.c_uint()
1488
(gnutls.library.functions
1489
.gnutls_openpgp_crt_verify_self(crt, 0,
1490
ctypes.byref(crtverify)))
2485
gnutls.openpgp_crt_verify_self(crt, 0,
2486
ctypes.byref(crtverify))
1491
2487
if crtverify.value != 0:
1492
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1493
raise (gnutls.errors.CertificateSecurityError
1494
("Verify failed"))
2488
gnutls.openpgp_crt_deinit(crt)
2489
raise gnutls.CertificateSecurityError(code
2490
=crtverify.value)
1495
2491
# New buffer for the fingerprint
1496
2492
buf = ctypes.create_string_buffer(20)
1497
2493
buf_len = ctypes.c_size_t()
1498
2494
# Get the fingerprint from the certificate into the buffer
1499
(gnutls.library.functions
1500
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1501
ctypes.byref(buf_len)))
2495
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2496
ctypes.byref(buf_len))
1502
2497
# Deinit the certificate
1503
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2498
gnutls.openpgp_crt_deinit(crt)
1504
2499
# Convert the buffer to a Python bytestring
1505
2500
fpr = ctypes.string_at(buf, buf_len.value)
1506
2501
# Convert the bytestring to hexadecimal notation
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2502
hex_fpr = binascii.hexlify(fpr).upper()
1508
2503
return hex_fpr
1509
2504
1510
2505
1511
class MultiprocessingMixIn(object):
2506
class MultiprocessingMixIn:
1512
2507
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2508
1513
2509
def sub_process_main(self, request, address):
1514
2510
try:
1515
2511
self.finish_request(request, address)
1516
except:
2512
except Exception:
1517
2513
self.handle_error(request, address)
1518
2514
self.close_request(request)
1519
2515
1520
2516
def process_request(self, request, address):
1521
2517
"""Start a new process to process the request."""
1522
proc = multiprocessing.Process(target = self.sub_process_main,
1523
args = (request,
1524
address))
2518
proc = multiprocessing.Process(target=self.sub_process_main,
2519
args=(request, address))
1525
2520
proc.start()
1526
2521
return proc
1527
2522
1528
2523
1529
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2524
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1530
2525
""" adds a pipe to the MixIn """
2526
1531
2527
def process_request(self, request, client_address):
1532
2528
"""Overrides and wraps the original process_request().
1533
2529
1534
2530
This function creates a new pipe in self.pipe
1535
2531
"""
1536
2532
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1537
2533
1538
2534
proc = MultiprocessingMixIn.process_request(self, request,
1539
2535
client_address)
1540
2536
self.child_pipe.close()
1541
2537
self.add_pipe(parent_pipe, proc)
1542
2538
1543
2539
def add_pipe(self, parent_pipe, proc):
1544
2540
"""Dummy function; override as necessary"""
1545
raise NotImplementedError
2541
raise NotImplementedError()
1546
2542
1547
2543
1548
2544
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1549
socketserver.TCPServer, object):
2545
socketserver.TCPServer):
1550
2546
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1551
2547
1552
2548
Attributes:
1553
2549
enabled: Boolean; whether this server is activated yet
1554
2550
interface: None or a network interface name (string)
1555
2551
use_ipv6: Boolean; to use IPv6 or not
1556
2552
"""
2553
1557
2554
def __init__(self, server_address, RequestHandlerClass,
1558
interface=None, use_ipv6=True):
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
"""
1559
2561
self.interface = interface
1560
2562
if use_ipv6:
1561
2563
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.
1562
2591
socketserver.TCPServer.__init__(self, server_address,
1563
2592
RequestHandlerClass)
2593
1564
2594
def server_bind(self):
1565
2595
"""This overrides the normal server_bind() function
1566
2596
to bind to an interface if one was specified, and also NOT to
1567
2597
bind to an address or port if they were not specified."""
2598
global SO_BINDTODEVICE
1568
2599
if self.interface is not None:
1569
2600
if SO_BINDTODEVICE is None:
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
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
1590
2622
# Only bind(2) the socket if we really need to.
1591
2623
if self.server_address[0] or self.server_address[1]:
2624
if self.server_address[1]:
2625
self.allow_reuse_address = True
1592
2626
if not self.server_address[0]:
1593
2627
if self.address_family == socket.AF_INET6:
1594
any_address = "::" # in6addr_any
2628
any_address = "::" # in6addr_any
1595
2629
else:
1596
any_address = socket.INADDR_ANY
2630
any_address = "0.0.0.0" # INADDR_ANY
1597
2631
self.server_address = (any_address,
1598
2632
self.server_address[1])
1599
2633
elif not self.server_address[1]:
1600
self.server_address = (self.server_address[0],
1601
0)
2634
self.server_address = (self.server_address[0], 0)
1602
2635
# if self.interface:
1603
2636
# self.server_address = (self.server_address[0],
1604
2637
# 0, # port
1610
2643
1611
2644
class MandosServer(IPv6_TCPServer):
1612
2645
"""Mandos server.
1613
2646
1614
2647
Attributes:
1615
2648
clients: set of Client objects
1616
2649
gnutls_priority GnuTLS priority string
1617
2650
use_dbus: Boolean; to emit D-Bus signals or not
1618
1619
Assumes a gobject.MainLoop event loop.
2651
2652
Assumes a GLib.MainLoop event loop.
1620
2653
"""
2654
1621
2655
def __init__(self, server_address, RequestHandlerClass,
1622
interface=None, use_ipv6=True, clients=None,
1623
gnutls_priority=None, use_dbus=True):
2656
interface=None,
2657
use_ipv6=True,
2658
clients=None,
2659
gnutls_priority=None,
2660
use_dbus=True,
2661
socketfd=None):
1624
2662
self.enabled = False
1625
2663
self.clients = clients
1626
2664
if self.clients is None:
1627
self.clients = set()
2665
self.clients = {}
1628
2666
self.use_dbus = use_dbus
1629
2667
self.gnutls_priority = gnutls_priority
1630
2668
IPv6_TCPServer.__init__(self, server_address,
1631
2669
RequestHandlerClass,
1632
interface = interface,
1633
use_ipv6 = use_ipv6)
2670
interface=interface,
2671
use_ipv6=use_ipv6,
2672
socketfd=socketfd)
2673
1634
2674
def server_activate(self):
1635
2675
if self.enabled:
1636
2676
return socketserver.TCPServer.server_activate(self)
1637
2677
1638
2678
def enable(self):
1639
2679
self.enabled = True
1640
2680
1641
2681
def add_pipe(self, parent_pipe, proc):
1642
2682
# Call "handle_ipc" for both data and EOF events
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)
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):
1666
2694
# error, or the other end of multiprocessing.Pipe has closed
1667
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2695
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1668
2696
# Wait for other process to exit
1669
2697
proc.join()
1670
2698
return False
1671
2699
1672
2700
# Read a request from the child
1673
2701
request = parent_pipe.recv()
1674
2702
command = request[0]
1675
2703
1676
2704
if command == 'init':
1677
fpr = request[1]
1678
address = request[2]
1679
1680
for c in self.clients:
1681
if c.fingerprint == fpr:
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:
1682
2716
client = c
1683
2717
break
1684
2718
else:
1685
logger.info("Client not found for fingerprint: %s, ad"
1686
"dress: %s", fpr, address)
2719
logger.info("Client not found for key ID: %s, address"
2720
": %s", key_id or fpr, address)
1687
2721
if self.use_dbus:
1688
2722
# Emit D-Bus signal
1689
mandos_dbus_service.ClientNotFound(fpr,
2723
mandos_dbus_service.ClientNotFound(key_id or fpr,
1690
2724
address[0])
1691
2725
parent_pipe.send(False)
1692
2726
return False
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))
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))
1702
2735
parent_pipe.send(True)
1703
2736
# remove the old hook in favor of the new above hook on
1704
2737
# same fileno
1707
2740
funcname = request[1]
1708
2741
args = request[2]
1709
2742
kwargs = request[3]
1710
2743
1711
2744
parent_pipe.send(('data', getattr(client_object,
1712
2745
funcname)(*args,
1713
**kwargs)))
1714
2746
**kwargs)))
2747
1715
2748
if command == 'getattr':
1716
2749
attrname = request[1]
1717
if callable(client_object.__getattribute__(attrname)):
1718
parent_pipe.send(('function',))
2750
if isinstance(client_object.__getattribute__(attrname),
2751
collections.Callable):
2752
parent_pipe.send(('function', ))
1719
2753
else:
1720
parent_pipe.send(('data', client_object
1721
.__getattribute__(attrname)))
1722
2754
parent_pipe.send((
2755
'data', client_object.__getattribute__(attrname)))
2756
1723
2757
if command == 'setattr':
1724
2758
attrname = request[1]
1725
2759
value = request[2]
1726
2760
setattr(client_object, attrname, value)
1727
2761
1728
2762
return True
1729
2763
1730
2764
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
1731
2864
def string_to_delta(interval):
1732
2865
"""Parse a string and return a datetime.timedelta
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)
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
1746
2879
"""
2880
2881
try:
2882
return rfc3339_duration_to_delta(interval)
2883
except ValueError:
2884
pass
2885
1747
2886
timevalue = datetime.timedelta(0)
1748
2887
for s in interval.split():
1749
2888
try:
1750
suffix = unicode(s[-1])
2889
suffix = s[-1]
1751
2890
value = int(s[:-1])
1752
2891
if suffix == "d":
1753
2892
delta = datetime.timedelta(value)
1760
2899
elif suffix == "w":
1761
2900
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1762
2901
else:
1763
raise ValueError("Unknown suffix %r" % suffix)
1764
except (ValueError, IndexError) as e:
2902
raise ValueError("Unknown suffix {!r}".format(suffix))
2903
except IndexError as e:
1765
2904
raise ValueError(*(e.args))
1766
2905
timevalue += delta
1767
2906
return timevalue
1768
2907
1769
2908
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):
2909
def daemon(nochdir=False, noclose=False):
1795
2910
"""See daemon(3). Standard BSD Unix function.
1796
2911
1797
2912
This should really exist as os.daemon, but it doesn't (yet)."""
1798
2913
if os.fork():
1799
2914
sys.exit()
1804
2919
sys.exit()
1805
2920
if not noclose:
1806
2921
# Close all standard open file descriptors
1807
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2922
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1808
2923
if not stat.S_ISCHR(os.fstat(null).st_mode):
1809
2924
raise OSError(errno.ENODEV,
1810
"%s not a character device"
1811
% os.path.devnull)
2925
"{} not a character device"
2926
.format(os.devnull))
1812
2927
os.dup2(null, sys.stdin.fileno())
1813
2928
os.dup2(null, sys.stdout.fileno())
1814
2929
os.dup2(null, sys.stderr.fileno())
1817
2932
1818
2933
1819
2934
def main():
1820
2935
1821
2936
##################################################################
1822
2937
# Parsing of options, both command line and config file
1823
2938
1824
2939
parser = argparse.ArgumentParser()
1825
2940
parser.add_argument("-v", "--version", action="version",
1826
version = "%%(prog)s %s" % version,
2941
version="%(prog)s {}".format(version),
1827
2942
help="show version number and exit")
1828
2943
parser.add_argument("-i", "--interface", metavar="IF",
1829
2944
help="Bind to interface IF")
1835
2950
help="Run self-test")
1836
2951
parser.add_argument("--debug", action="store_true",
1837
2952
help="Debug mode; run in foreground and log"
1838
" to terminal")
2953
" to terminal", default=None)
1839
2954
parser.add_argument("--debuglevel", metavar="LEVEL",
1840
2955
help="Debug level for stdout output")
1841
2956
parser.add_argument("--priority", help="GnuTLS"
1848
2963
" files")
1849
2964
parser.add_argument("--no-dbus", action="store_false",
1850
2965
dest="use_dbus", help="Do not provide D-Bus"
1851
" system bus interface")
2966
" system bus interface", default=None)
1852
2967
parser.add_argument("--no-ipv6", action="store_false",
1853
dest="use_ipv6", help="Do not use IPv6")
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
1854
2984
options = parser.parse_args()
1855
1856
if options.check:
1857
import doctest
1858
doctest.testmod()
1859
sys.exit()
1860
2985
1861
2986
# Default values for config file for server-global settings
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
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
1874
3010
# Parse config file for server-global settings
1875
server_config = configparser.SafeConfigParser(server_defaults)
3011
server_config = configparser.ConfigParser(server_defaults)
1876
3012
del server_defaults
1877
server_config.read(os.path.join(options.configdir,
1878
"mandos.conf"))
1879
# Convert the SafeConfigParser object to a dict
3013
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3014
# Convert the ConfigParser object to a dict
1880
3015
server_settings = server_config.defaults()
1881
3016
# Use the appropriate methods on the non-string config options
1882
for option in ("debug", "use_dbus", "use_ipv6"):
3017
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3018
"foreground", "zeroconf"):
1883
3019
server_settings[option] = server_config.getboolean("DEFAULT",
1884
3020
option)
1885
3021
if server_settings["port"]:
1886
3022
server_settings["port"] = server_config.getint("DEFAULT",
1887
3023
"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"])
1888
3033
del server_config
1889
3034
1890
3035
# Override the settings from the config file with command line
1891
3036
# options, if set.
1892
3037
for option in ("interface", "address", "port", "debug",
1893
"priority", "servicename", "configdir",
1894
"use_dbus", "use_ipv6", "debuglevel"):
3038
"priority", "servicename", "configdir", "use_dbus",
3039
"use_ipv6", "debuglevel", "restore", "statedir",
3040
"socket", "foreground", "zeroconf"):
1895
3041
value = getattr(options, option)
1896
3042
if value is not None:
1897
3043
server_settings[option] = value
1898
3044
del options
1899
3045
# Force all strings to be unicode
1900
3046
for option in server_settings.keys():
1901
if type(server_settings[option]) is str:
1902
server_settings[option] = unicode(server_settings[option])
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
1903
3057
# Now we have our good server settings in "server_settings"
1904
3058
1905
3059
##################################################################
1906
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
1907
3066
# For convenience
1908
3067
debug = server_settings["debug"]
1909
3068
debuglevel = server_settings["debuglevel"]
1910
3069
use_dbus = server_settings["use_dbus"]
1911
3070
use_ipv6 = server_settings["use_ipv6"]
1912
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
1913
3085
if server_settings["servicename"] != "Mandos":
1914
syslogger.setFormatter(logging.Formatter
1915
('Mandos (%s) [%%(process)d]:'
1916
' %%(levelname)s: %%(message)s'
1917
% server_settings["servicename"]))
1918
3086
syslogger.setFormatter(
3087
logging.Formatter('Mandos ({}) [%(process)d]:'
3088
' %(levelname)s: %(message)s'.format(
3089
server_settings["servicename"])))
3090
1919
3091
# Parse config file with clients
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)
3092
client_config = configparser.ConfigParser(Client.client_defaults)
1929
3093
client_config.read(os.path.join(server_settings["configdir"],
1930
3094
"clients.conf"))
1931
3095
1932
3096
global mandos_dbus_service
1933
3097
mandos_dbus_service = None
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
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
1958
3128
except KeyError:
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
3129
continue
3130
else:
3131
uid = 65534
3132
gid = 65534
1965
3133
try:
1966
3134
os.setgid(gid)
1967
3135
os.setuid(uid)
3136
if debug:
3137
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3138
gid))
1968
3139
except OSError as error:
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
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
1980
3145
if debug:
1981
3146
# Enable all possible GnuTLS debugging
1982
3147
1983
3148
# "Use a log level over 10 to enable all debugging options."
1984
3149
# - GnuTLS manual
1985
gnutls.library.functions.gnutls_global_set_log_level(11)
1986
1987
@gnutls.library.types.gnutls_log_func
3150
gnutls.global_set_log_level(11)
3151
3152
@gnutls.log_func
1988
3153
def debug_gnutls(level, string):
1989
3154
logger.debug("GnuTLS: %s", string[:-1])
1990
1991
(gnutls.library.functions
1992
.gnutls_global_set_log_function(debug_gnutls))
1993
3155
3156
gnutls.global_set_log_function(debug_gnutls)
3157
1994
3158
# Redirect stdin so all checkers get /dev/null
1995
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3159
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1996
3160
os.dup2(null, sys.stdin.fileno())
1997
3161
if null > 2:
1998
3162
os.close(null)
1999
else:
2000
# No console logging
2001
logger.removeHandler(console)
2002
3163
2003
3164
# Need to fork before connecting to D-Bus
2004
if not debug:
3165
if not foreground:
2005
3166
# Close all input and output, do double fork, etc.
2006
3167
daemon()
2007
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
2008
3174
global main_loop
2009
3175
# From the Avahi example code
2010
DBusGMainLoop(set_as_default=True )
2011
main_loop = gobject.MainLoop()
3176
DBusGMainLoop(set_as_default=True)
3177
main_loop = GLib.MainLoop()
2012
3178
bus = dbus.SystemBus()
2013
3179
# End of Avahi example code
2014
3180
if use_dbus:
2015
3181
try:
2016
3182
bus_name = dbus.service.BusName("se.recompile.Mandos",
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")
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)
2023
3190
use_dbus = False
2024
3191
server_settings["use_dbus"] = False
2025
3192
tcp_server.use_dbus = False
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
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
2034
3204
global multiprocessing_manager
2035
3205
multiprocessing_manager = multiprocessing.Manager()
2036
3206
2037
3207
client_class = Client
2038
3208
if use_dbus:
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):
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))
2048
3342
try:
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()))
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
2058
3368
if not tcp_server.clients:
2059
3369
logger.warning("No clients defined")
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
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
2073
3381
del pidfilename
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
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
2080
3387
if use_dbus:
2081
class MandosDBusService(dbus.service.Object):
3388
3389
@alternate_dbus_interfaces(
3390
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3391
class MandosDBusService(DBusObjectWithObjectManager):
2082
3392
"""A D-Bus proxy object"""
3393
2083
3394
def __init__(self):
2084
3395
dbus.service.Object.__init__(self, bus, "/")
3396
2085
3397
_interface = "se.recompile.Mandos"
2086
3398
2087
3399
@dbus.service.signal(_interface, signature="o")
2088
3400
def ClientAdded(self, objpath):
2089
3401
"D-Bus signal"
2090
3402
pass
2091
3403
2092
3404
@dbus.service.signal(_interface, signature="ss")
2093
def ClientNotFound(self, fingerprint, address):
3405
def ClientNotFound(self, key_id, address):
2094
3406
"D-Bus signal"
2095
3407
pass
2096
3408
3409
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3410
"true"})
2097
3411
@dbus.service.signal(_interface, signature="os")
2098
3412
def ClientRemoved(self, objpath, name):
2099
3413
"D-Bus signal"
2100
3414
pass
2101
3415
3416
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3417
"true"})
2102
3418
@dbus.service.method(_interface, out_signature="ao")
2103
3419
def GetAllClients(self):
2104
3420
"D-Bus method"
2105
return dbus.Array(c.dbus_object_path
2106
for c in tcp_server.clients)
2107
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"})
2108
3426
@dbus.service.method(_interface,
2109
3427
out_signature="a{oa{sv}}")
2110
3428
def GetAllClientsWithProperties(self):
2111
3429
"D-Bus method"
2112
3430
return dbus.Dictionary(
2113
((c.dbus_object_path, c.GetAll(""))
2114
for c in tcp_server.clients),
3431
{c.dbus_object_path: c.GetAll(
3432
"se.recompile.Mandos.Client")
3433
for c in tcp_server.clients.values()},
2115
3434
signature="oa{sv}")
2116
3435
2117
3436
@dbus.service.method(_interface, in_signature="o")
2118
3437
def RemoveClient(self, object_path):
2119
3438
"D-Bus method"
2120
for c in tcp_server.clients:
3439
for c in tcp_server.clients.values():
2121
3440
if c.dbus_object_path == object_path:
2122
tcp_server.clients.remove(c)
3441
del tcp_server.clients[c.name]
2123
3442
c.remove_from_connection()
2124
# Don't signal anything except ClientRemoved
3443
# Don't signal the disabling
2125
3444
c.disable(quiet=True)
2126
# Emit D-Bus signal
2127
self.ClientRemoved(object_path, c.name)
3445
# Emit D-Bus signal for removal
3446
self.client_removed_signal(c)
2128
3447
return
2129
3448
raise KeyError(object_path)
2130
3449
2131
3450
del _interface
2132
2133
class MandosDBusServiceTransitional(MandosDBusService):
2134
__metaclass__ = AlternateDBusNamesMetaclass
2135
mandos_dbus_service = MandosDBusServiceTransitional()
2136
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
2137
3495
def cleanup():
2138
3496
"Cleanup function; run on exit"
2139
service.cleanup()
2140
2141
multiprocessing.active_children()
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
2142
3559
while tcp_server.clients:
2143
client = tcp_server.clients.pop()
3560
name, client = tcp_server.clients.popitem()
2144
3561
if use_dbus:
2145
3562
client.remove_from_connection()
2146
client.disable_hook = None
2147
# Don't signal anything except ClientRemoved
3563
# Don't signal the disabling
2148
3564
client.disable(quiet=True)
3565
# Emit D-Bus signal for removal
2149
3566
if use_dbus:
2150
# Emit D-Bus signal
2151
mandos_dbus_service.ClientRemoved(client
2152
.dbus_object_path,
2153
client.name)
2154
3567
mandos_dbus_service.client_removed_signal(client)
3568
client_settings.clear()
3569
2155
3570
atexit.register(cleanup)
2156
2157
for client in tcp_server.clients:
3571
3572
for client in tcp_server.clients.values():
2158
3573
if use_dbus:
2159
# Emit D-Bus signal
2160
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2161
client.enable()
2162
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
2163
3580
tcp_server.enable()
2164
3581
tcp_server.server_activate()
2165
3582
2166
3583
# Find out what port we got
2167
service.port = tcp_server.socket.getsockname()[1]
3584
if zeroconf:
3585
service.port = tcp_server.socket.getsockname()[1]
2168
3586
if use_ipv6:
2169
3587
logger.info("Now listening on address %r, port %d,"
2170
" flowinfo %d, scope_id %d"
2171
% tcp_server.socket.getsockname())
3588
" flowinfo %d, scope_id %d",
3589
*tcp_server.socket.getsockname())
2172
3590
else: # IPv4
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
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
2178
3596
try:
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
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
2193
3613
logger.debug("Starting main loop")
2194
3614
main_loop.run()
2195
3615
except AvahiError as error:
2196
logger.critical("AvahiError: %s", error)
3616
logger.critical("Avahi Error", exc_info=error)
2197
3617
cleanup()
2198
3618
sys.exit(1)
2199
3619
except KeyboardInterrupt:
2204
3624
# Must run before the D-Bus bus name gets deregistered
2205
3625
cleanup()
2206
3626
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
2207
3643
2208
3644
if __name__ == '__main__':
2209
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()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0