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- Committer: Teddy Hogeborn
- Date: 2012-01-01 04:02:00 UTC
- Revision ID: teddy@recompile.se-20120101040200-8wgma707v4gi7hxn
* debian/rules (binary-common): Exclude network-hooks.d from
dh_fixperms.
* mandos (DBusObjectWithProperties.Set): Bug fix: handle byte arrays.
* mandos-clients.conf.xml (DESCRIPTION): Add reference to persistent
state.
* mandos-options.xml (restore): Adjust wording slightly.
* mandos.xml (OPTIONS/--no-restore): Refer to "PERSISTENT STATE"
section.
(PERSISTENT STATE): New section.
dh_fixperms.
* mandos (DBusObjectWithProperties.Set): Bug fix: handle byte arrays.
* mandos-clients.conf.xml (DESCRIPTION): Add reference to persistent
state.
* mandos-options.xml (restore): Adjust wording slightly.
* mandos.xml (OPTIONS/--no-restore): Refer to "PERSISTENT STATE"
section.
(PERSISTENT STATE): New section.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
66
import binascii
76
67
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
68
82
69
import dbus
83
70
import dbus.service
84
import gi
85
from gi.repository import GLib
71
import gobject
72
import avahi
86
73
from dbus.mainloop.glib import DBusGMainLoop
87
74
import ctypes
88
75
import ctypes.util
89
76
import xml.dom.minidom
90
77
import inspect
91
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
95
# Show warnings by default
96
if not sys.warnoptions:
97
import warnings
98
warnings.simplefilter("default")
99
100
# Try to find the value of SO_BINDTODEVICE:
78
import GnuPGInterface
79
101
80
try:
102
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
103
# newer, and it is also the most natural place for it:
104
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
105
82
except AttributeError:
106
83
try:
107
# This is where SO_BINDTODEVICE was up to and including Python
108
# 2.6, and also 3.2:
109
84
from IN import SO_BINDTODEVICE
110
85
except ImportError:
111
# In Python 2.7 it seems to have been removed entirely.
112
# Try running the C preprocessor:
113
try:
114
cc = subprocess.Popen(["cc", "--language=c", "-E",
115
"/dev/stdin"],
116
stdin=subprocess.PIPE,
117
stdout=subprocess.PIPE)
118
stdout = cc.communicate(
119
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
120
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
121
except (OSError, ValueError, IndexError):
122
# No value found
123
SO_BINDTODEVICE = None
124
125
if sys.version_info.major == 2:
126
str = unicode
127
128
if sys.version_info < (3, 2):
129
configparser.Configparser = configparser.SafeConfigParser
130
131
version = "1.8.9"
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
132
89
stored_state_file = "clients.pickle"
133
90
134
91
logger = logging.getLogger()
135
logging.captureWarnings(True) # Show warnings via the logging system
136
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
137
95
138
96
try:
139
if_nametoindex = ctypes.cdll.LoadLibrary(
140
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
141
100
except (OSError, AttributeError):
142
143
101
def if_nametoindex(interface):
144
102
"Get an interface index the hard way, i.e. using fcntl()"
145
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
146
104
with contextlib.closing(socket.socket()) as s:
147
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
148
struct.pack(b"16s16x", interface))
149
interface_index = struct.unpack("I", ifreq[16:20])[0]
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
150
110
return interface_index
151
111
152
112
153
def copy_function(func):
154
"""Make a copy of a function"""
155
if sys.version_info.major == 2:
156
return types.FunctionType(func.func_code,
157
func.func_globals,
158
func.func_name,
159
func.func_defaults,
160
func.func_closure)
161
else:
162
return types.FunctionType(func.__code__,
163
func.__globals__,
164
func.__name__,
165
func.__defaults__,
166
func.__closure__)
167
168
169
113
def initlogger(debug, level=logging.WARNING):
170
114
"""init logger and add loglevel"""
171
172
global syslogger
173
syslogger = (logging.handlers.SysLogHandler(
174
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
175
address="/dev/log"))
115
176
116
syslogger.setFormatter(logging.Formatter
177
117
('Mandos [%(process)d]: %(levelname)s:'
178
118
' %(message)s'))
179
119
logger.addHandler(syslogger)
180
120
181
121
if debug:
182
122
console = logging.StreamHandler()
183
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
193
133
pass
194
134
195
135
196
class PGPEngine:
136
class PGPEngine(object):
197
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
198
199
138
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
200
140
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
201
self.gpg = "gpg"
202
try:
203
output = subprocess.check_output(["gpgconf"])
204
for line in output.splitlines():
205
name, text, path = line.split(b":")
206
if name == b"gpg":
207
self.gpg = path
208
break
209
except OSError as e:
210
if e.errno != errno.ENOENT:
211
raise
212
self.gnupgargs = ['--batch',
213
'--homedir', self.tempdir,
214
'--force-mdc',
215
'--quiet']
216
# Only GPG version 1 has the --no-use-agent option.
217
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
218
self.gnupgargs.append("--no-use-agent")
219
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet',
146
'--no-use-agent'])
147
220
148
def __enter__(self):
221
149
return self
222
223
def __exit__(self, exc_type, exc_value, traceback):
150
151
def __exit__ (self, exc_type, exc_value, traceback):
224
152
self._cleanup()
225
153
return False
226
154
227
155
def __del__(self):
228
156
self._cleanup()
229
157
230
158
def _cleanup(self):
231
159
if self.tempdir is not None:
232
160
# Delete contents of tempdir
233
161
for root, dirs, files in os.walk(self.tempdir,
234
topdown=False):
162
topdown = False):
235
163
for filename in files:
236
164
os.remove(os.path.join(root, filename))
237
165
for dirname in dirs:
239
167
# Remove tempdir
240
168
os.rmdir(self.tempdir)
241
169
self.tempdir = None
242
170
243
171
def password_encode(self, password):
244
172
# Passphrase can not be empty and can not contain newlines or
245
173
# NUL bytes. So we prefix it and hex encode it.
246
encoded = b"mandos" + binascii.hexlify(password)
247
if len(encoded) > 2048:
248
# GnuPG can't handle long passwords, so encode differently
249
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
250
.replace(b"\n", b"\\n")
251
.replace(b"\0", b"\\x00"))
252
return encoded
253
174
return b"mandos" + binascii.hexlify(password)
175
254
176
def encrypt(self, data, password):
255
passphrase = self.password_encode(password)
256
with tempfile.NamedTemporaryFile(
257
dir=self.tempdir) as passfile:
258
passfile.write(passphrase)
259
passfile.flush()
260
proc = subprocess.Popen([self.gpg, '--symmetric',
261
'--passphrase-file',
262
passfile.name]
263
+ self.gnupgargs,
264
stdin=subprocess.PIPE,
265
stdout=subprocess.PIPE,
266
stderr=subprocess.PIPE)
267
ciphertext, err = proc.communicate(input=data)
268
if proc.returncode != 0:
269
raise PGPError(err)
177
self.gnupg.passphrase = self.password_encode(password)
178
with open(os.devnull) as devnull:
179
try:
180
proc = self.gnupg.run(['--symmetric'],
181
create_fhs=['stdin', 'stdout'],
182
attach_fhs={'stderr': devnull})
183
with contextlib.closing(proc.handles['stdin']) as f:
184
f.write(data)
185
with contextlib.closing(proc.handles['stdout']) as f:
186
ciphertext = f.read()
187
proc.wait()
188
except IOError as e:
189
raise PGPError(e)
190
self.gnupg.passphrase = None
270
191
return ciphertext
271
192
272
193
def decrypt(self, data, password):
273
passphrase = self.password_encode(password)
274
with tempfile.NamedTemporaryFile(
275
dir=self.tempdir) as passfile:
276
passfile.write(passphrase)
277
passfile.flush()
278
proc = subprocess.Popen([self.gpg, '--decrypt',
279
'--passphrase-file',
280
passfile.name]
281
+ self.gnupgargs,
282
stdin=subprocess.PIPE,
283
stdout=subprocess.PIPE,
284
stderr=subprocess.PIPE)
285
decrypted_plaintext, err = proc.communicate(input=data)
286
if proc.returncode != 0:
287
raise PGPError(err)
194
self.gnupg.passphrase = self.password_encode(password)
195
with open(os.devnull) as devnull:
196
try:
197
proc = self.gnupg.run(['--decrypt'],
198
create_fhs=['stdin', 'stdout'],
199
attach_fhs={'stderr': devnull})
200
with contextlib.closing(proc.handles['stdin'] ) as f:
201
f.write(data)
202
with contextlib.closing(proc.handles['stdout']) as f:
203
decrypted_plaintext = f.read()
204
proc.wait()
205
except IOError as e:
206
raise PGPError(e)
207
self.gnupg.passphrase = None
288
208
return decrypted_plaintext
289
209
290
210
291
# Pretend that we have an Avahi module
292
class avahi:
293
"""This isn't so much a class as it is a module-like namespace."""
294
IF_UNSPEC = -1 # avahi-common/address.h
295
PROTO_UNSPEC = -1 # avahi-common/address.h
296
PROTO_INET = 0 # avahi-common/address.h
297
PROTO_INET6 = 1 # avahi-common/address.h
298
DBUS_NAME = "org.freedesktop.Avahi"
299
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
300
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
301
DBUS_PATH_SERVER = "/"
302
303
@staticmethod
304
def string_array_to_txt_array(t):
305
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
306
for s in t), signature="ay")
307
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
308
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
309
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
310
SERVER_INVALID = 0 # avahi-common/defs.h
311
SERVER_REGISTERING = 1 # avahi-common/defs.h
312
SERVER_RUNNING = 2 # avahi-common/defs.h
313
SERVER_COLLISION = 3 # avahi-common/defs.h
314
SERVER_FAILURE = 4 # avahi-common/defs.h
315
316
211
317
212
class AvahiError(Exception):
318
213
def __init__(self, value, *args, **kwargs):
319
214
self.value = value
320
return super(AvahiError, self).__init__(value, *args,
321
**kwargs)
322
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
323
218
324
219
class AvahiServiceError(AvahiError):
325
220
pass
326
221
327
328
222
class AvahiGroupError(AvahiError):
329
223
pass
330
224
331
225
332
class AvahiService:
226
class AvahiService(object):
333
227
"""An Avahi (Zeroconf) service.
334
228
335
229
Attributes:
336
230
interface: integer; avahi.IF_UNSPEC or an interface index.
337
231
Used to optionally bind to the specified interface.
338
232
name: string; Example: 'Mandos'
339
233
type: string; Example: '_mandos._tcp'.
340
See <https://www.iana.org/assignments/service-names-port-numbers>
234
See <http://www.dns-sd.org/ServiceTypes.html>
341
235
port: integer; what port to announce
342
236
TXT: list of strings; TXT record for the service
343
237
domain: string; Domain to publish on, default to .local if empty.
349
243
server: D-Bus Server
350
244
bus: dbus.SystemBus()
351
245
"""
352
353
def __init__(self,
354
interface=avahi.IF_UNSPEC,
355
name=None,
356
servicetype=None,
357
port=None,
358
TXT=None,
359
domain="",
360
host="",
361
max_renames=32768,
362
protocol=avahi.PROTO_UNSPEC,
363
bus=None):
246
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
247
servicetype = None, port = None, TXT = None,
248
domain = "", host = "", max_renames = 32768,
249
protocol = avahi.PROTO_UNSPEC, bus = None):
364
250
self.interface = interface
365
251
self.name = name
366
252
self.type = servicetype
375
261
self.server = None
376
262
self.bus = bus
377
263
self.entry_group_state_changed_match = None
378
379
def rename(self, remove=True):
264
def rename(self):
380
265
"""Derived from the Avahi example code"""
381
266
if self.rename_count >= self.max_renames:
382
267
logger.critical("No suitable Zeroconf service name found"
383
268
" after %i retries, exiting.",
384
269
self.rename_count)
385
270
raise AvahiServiceError("Too many renames")
386
self.name = str(
387
self.server.GetAlternativeServiceName(self.name))
388
self.rename_count += 1
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
389
273
logger.info("Changing Zeroconf service name to %r ...",
390
274
self.name)
391
if remove:
392
self.remove()
275
self.remove()
393
276
try:
394
277
self.add()
395
278
except dbus.exceptions.DBusException as error:
396
if (error.get_dbus_name()
397
== "org.freedesktop.Avahi.CollisionError"):
398
logger.info("Local Zeroconf service name collision.")
399
return self.rename(remove=False)
400
else:
401
logger.critical("D-Bus Exception", exc_info=error)
402
self.cleanup()
403
os._exit(1)
404
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
405
283
def remove(self):
406
284
"""Derived from the Avahi example code"""
407
285
if self.entry_group_state_changed_match is not None:
409
287
self.entry_group_state_changed_match = None
410
288
if self.group is not None:
411
289
self.group.Reset()
412
413
290
def add(self):
414
291
"""Derived from the Avahi example code"""
415
292
self.remove()
432
309
dbus.UInt16(self.port),
433
310
avahi.string_array_to_txt_array(self.TXT))
434
311
self.group.Commit()
435
436
312
def entry_group_state_changed(self, state, error):
437
313
"""Derived from the Avahi example code"""
438
314
logger.debug("Avahi entry group state change: %i", state)
439
315
440
316
if state == avahi.ENTRY_GROUP_ESTABLISHED:
441
317
logger.debug("Zeroconf service established.")
442
318
elif state == avahi.ENTRY_GROUP_COLLISION:
444
320
self.rename()
445
321
elif state == avahi.ENTRY_GROUP_FAILURE:
446
322
logger.critical("Avahi: Error in group state changed %s",
447
str(error))
448
raise AvahiGroupError("State changed: {!s}".format(error))
449
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
450
326
def cleanup(self):
451
327
"""Derived from the Avahi example code"""
452
328
if self.group is not None:
457
333
pass
458
334
self.group = None
459
335
self.remove()
460
461
336
def server_state_changed(self, state, error=None):
462
337
"""Derived from the Avahi example code"""
463
338
logger.debug("Avahi server state change: %i", state)
464
bad_states = {
465
avahi.SERVER_INVALID: "Zeroconf server invalid",
466
avahi.SERVER_REGISTERING: None,
467
avahi.SERVER_COLLISION: "Zeroconf server name collision",
468
avahi.SERVER_FAILURE: "Zeroconf server failure",
469
}
339
bad_states = { avahi.SERVER_INVALID:
340
"Zeroconf server invalid",
341
avahi.SERVER_REGISTERING: None,
342
avahi.SERVER_COLLISION:
343
"Zeroconf server name collision",
344
avahi.SERVER_FAILURE:
345
"Zeroconf server failure" }
470
346
if state in bad_states:
471
347
if bad_states[state] is not None:
472
348
if error is None:
475
351
logger.error(bad_states[state] + ": %r", error)
476
352
self.cleanup()
477
353
elif state == avahi.SERVER_RUNNING:
478
try:
479
self.add()
480
except dbus.exceptions.DBusException as error:
481
if (error.get_dbus_name()
482
== "org.freedesktop.Avahi.CollisionError"):
483
logger.info("Local Zeroconf service name"
484
" collision.")
485
return self.rename(remove=False)
486
else:
487
logger.critical("D-Bus Exception", exc_info=error)
488
self.cleanup()
489
os._exit(1)
354
self.add()
490
355
else:
491
356
if error is None:
492
357
logger.debug("Unknown state: %r", state)
493
358
else:
494
359
logger.debug("Unknown state: %r: %r", state, error)
495
496
360
def activate(self):
497
361
"""Derived from the Avahi example code"""
498
362
if self.server is None:
502
366
follow_name_owner_changes=True),
503
367
avahi.DBUS_INTERFACE_SERVER)
504
368
self.server.connect_to_signal("StateChanged",
505
self.server_state_changed)
369
self.server_state_changed)
506
370
self.server_state_changed(self.server.GetState())
507
371
508
509
372
class AvahiServiceToSyslog(AvahiService):
510
def rename(self, *args, **kwargs):
373
def rename(self):
511
374
"""Add the new name to the syslog messages"""
512
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
513
syslogger.setFormatter(logging.Formatter(
514
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
515
.format(self.name)))
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
516
380
return ret
517
381
518
519
# Pretend that we have a GnuTLS module
520
class gnutls:
521
"""This isn't so much a class as it is a module-like namespace."""
522
523
library = ctypes.util.find_library("gnutls")
524
if library is None:
525
library = ctypes.util.find_library("gnutls-deb0")
526
_library = ctypes.cdll.LoadLibrary(library)
527
del library
528
529
# Unless otherwise indicated, the constants and types below are
530
# all from the gnutls/gnutls.h C header file.
531
532
# Constants
533
E_SUCCESS = 0
534
E_INTERRUPTED = -52
535
E_AGAIN = -28
536
CRT_OPENPGP = 2
537
CRT_RAWPK = 3
538
CLIENT = 2
539
SHUT_RDWR = 0
540
CRD_CERTIFICATE = 1
541
E_NO_CERTIFICATE_FOUND = -49
542
X509_FMT_DER = 0
543
NO_TICKETS = 1<<10
544
ENABLE_RAWPK = 1<<18
545
CTYPE_PEERS = 3
546
KEYID_USE_SHA256 = 1 # gnutls/x509.h
547
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
548
549
# Types
550
class session_int(ctypes.Structure):
551
_fields_ = []
552
session_t = ctypes.POINTER(session_int)
553
554
class certificate_credentials_st(ctypes.Structure):
555
_fields_ = []
556
certificate_credentials_t = ctypes.POINTER(
557
certificate_credentials_st)
558
certificate_type_t = ctypes.c_int
559
560
class datum_t(ctypes.Structure):
561
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
562
('size', ctypes.c_uint)]
563
564
class openpgp_crt_int(ctypes.Structure):
565
_fields_ = []
566
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
567
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
568
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
569
credentials_type_t = ctypes.c_int
570
transport_ptr_t = ctypes.c_void_p
571
close_request_t = ctypes.c_int
572
573
# Exceptions
574
class Error(Exception):
575
def __init__(self, message=None, code=None, args=()):
576
# Default usage is by a message string, but if a return
577
# code is passed, convert it to a string with
578
# gnutls.strerror()
579
self.code = code
580
if message is None and code is not None:
581
message = gnutls.strerror(code)
582
return super(gnutls.Error, self).__init__(
583
message, *args)
584
585
class CertificateSecurityError(Error):
586
pass
587
588
# Classes
589
class Credentials:
590
def __init__(self):
591
self._c_object = gnutls.certificate_credentials_t()
592
gnutls.certificate_allocate_credentials(
593
ctypes.byref(self._c_object))
594
self.type = gnutls.CRD_CERTIFICATE
595
596
def __del__(self):
597
gnutls.certificate_free_credentials(self._c_object)
598
599
class ClientSession:
600
def __init__(self, socket, credentials=None):
601
self._c_object = gnutls.session_t()
602
gnutls_flags = gnutls.CLIENT
603
if gnutls.check_version(b"3.5.6"):
604
gnutls_flags |= gnutls.NO_TICKETS
605
if gnutls.has_rawpk:
606
gnutls_flags |= gnutls.ENABLE_RAWPK
607
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
608
del gnutls_flags
609
gnutls.set_default_priority(self._c_object)
610
gnutls.transport_set_ptr(self._c_object, socket.fileno())
611
gnutls.handshake_set_private_extensions(self._c_object,
612
True)
613
self.socket = socket
614
if credentials is None:
615
credentials = gnutls.Credentials()
616
gnutls.credentials_set(self._c_object, credentials.type,
617
ctypes.cast(credentials._c_object,
618
ctypes.c_void_p))
619
self.credentials = credentials
620
621
def __del__(self):
622
gnutls.deinit(self._c_object)
623
624
def handshake(self):
625
return gnutls.handshake(self._c_object)
626
627
def send(self, data):
628
data = bytes(data)
629
data_len = len(data)
630
while data_len > 0:
631
data_len -= gnutls.record_send(self._c_object,
632
data[-data_len:],
633
data_len)
634
635
def bye(self):
636
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
637
638
# Error handling functions
639
def _error_code(result):
640
"""A function to raise exceptions on errors, suitable
641
for the 'restype' attribute on ctypes functions"""
642
if result >= 0:
643
return result
644
if result == gnutls.E_NO_CERTIFICATE_FOUND:
645
raise gnutls.CertificateSecurityError(code=result)
646
raise gnutls.Error(code=result)
647
648
def _retry_on_error(result, func, arguments):
649
"""A function to retry on some errors, suitable
650
for the 'errcheck' attribute on ctypes functions"""
651
while result < 0:
652
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
653
return _error_code(result)
654
result = func(*arguments)
655
return result
656
657
# Unless otherwise indicated, the function declarations below are
658
# all from the gnutls/gnutls.h C header file.
659
660
# Functions
661
priority_set_direct = _library.gnutls_priority_set_direct
662
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
663
ctypes.POINTER(ctypes.c_char_p)]
664
priority_set_direct.restype = _error_code
665
666
init = _library.gnutls_init
667
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
668
init.restype = _error_code
669
670
set_default_priority = _library.gnutls_set_default_priority
671
set_default_priority.argtypes = [session_t]
672
set_default_priority.restype = _error_code
673
674
record_send = _library.gnutls_record_send
675
record_send.argtypes = [session_t, ctypes.c_void_p,
676
ctypes.c_size_t]
677
record_send.restype = ctypes.c_ssize_t
678
record_send.errcheck = _retry_on_error
679
680
certificate_allocate_credentials = (
681
_library.gnutls_certificate_allocate_credentials)
682
certificate_allocate_credentials.argtypes = [
683
ctypes.POINTER(certificate_credentials_t)]
684
certificate_allocate_credentials.restype = _error_code
685
686
certificate_free_credentials = (
687
_library.gnutls_certificate_free_credentials)
688
certificate_free_credentials.argtypes = [
689
certificate_credentials_t]
690
certificate_free_credentials.restype = None
691
692
handshake_set_private_extensions = (
693
_library.gnutls_handshake_set_private_extensions)
694
handshake_set_private_extensions.argtypes = [session_t,
695
ctypes.c_int]
696
handshake_set_private_extensions.restype = None
697
698
credentials_set = _library.gnutls_credentials_set
699
credentials_set.argtypes = [session_t, credentials_type_t,
700
ctypes.c_void_p]
701
credentials_set.restype = _error_code
702
703
strerror = _library.gnutls_strerror
704
strerror.argtypes = [ctypes.c_int]
705
strerror.restype = ctypes.c_char_p
706
707
certificate_type_get = _library.gnutls_certificate_type_get
708
certificate_type_get.argtypes = [session_t]
709
certificate_type_get.restype = _error_code
710
711
certificate_get_peers = _library.gnutls_certificate_get_peers
712
certificate_get_peers.argtypes = [session_t,
713
ctypes.POINTER(ctypes.c_uint)]
714
certificate_get_peers.restype = ctypes.POINTER(datum_t)
715
716
global_set_log_level = _library.gnutls_global_set_log_level
717
global_set_log_level.argtypes = [ctypes.c_int]
718
global_set_log_level.restype = None
719
720
global_set_log_function = _library.gnutls_global_set_log_function
721
global_set_log_function.argtypes = [log_func]
722
global_set_log_function.restype = None
723
724
deinit = _library.gnutls_deinit
725
deinit.argtypes = [session_t]
726
deinit.restype = None
727
728
handshake = _library.gnutls_handshake
729
handshake.argtypes = [session_t]
730
handshake.restype = _error_code
731
handshake.errcheck = _retry_on_error
732
733
transport_set_ptr = _library.gnutls_transport_set_ptr
734
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
735
transport_set_ptr.restype = None
736
737
bye = _library.gnutls_bye
738
bye.argtypes = [session_t, close_request_t]
739
bye.restype = _error_code
740
bye.errcheck = _retry_on_error
741
742
check_version = _library.gnutls_check_version
743
check_version.argtypes = [ctypes.c_char_p]
744
check_version.restype = ctypes.c_char_p
745
746
_need_version = b"3.3.0"
747
if check_version(_need_version) is None:
748
raise self.Error("Needs GnuTLS {} or later"
749
.format(_need_version))
750
751
_tls_rawpk_version = b"3.6.6"
752
has_rawpk = bool(check_version(_tls_rawpk_version))
753
754
if has_rawpk:
755
# Types
756
class pubkey_st(ctypes.Structure):
757
_fields = []
758
pubkey_t = ctypes.POINTER(pubkey_st)
759
760
x509_crt_fmt_t = ctypes.c_int
761
762
# All the function declarations below are from gnutls/abstract.h
763
pubkey_init = _library.gnutls_pubkey_init
764
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
765
pubkey_init.restype = _error_code
766
767
pubkey_import = _library.gnutls_pubkey_import
768
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
769
x509_crt_fmt_t]
770
pubkey_import.restype = _error_code
771
772
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
773
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
774
ctypes.POINTER(ctypes.c_ubyte),
775
ctypes.POINTER(ctypes.c_size_t)]
776
pubkey_get_key_id.restype = _error_code
777
778
pubkey_deinit = _library.gnutls_pubkey_deinit
779
pubkey_deinit.argtypes = [pubkey_t]
780
pubkey_deinit.restype = None
781
else:
782
# All the function declarations below are from gnutls/openpgp.h
783
784
openpgp_crt_init = _library.gnutls_openpgp_crt_init
785
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
786
openpgp_crt_init.restype = _error_code
787
788
openpgp_crt_import = _library.gnutls_openpgp_crt_import
789
openpgp_crt_import.argtypes = [openpgp_crt_t,
790
ctypes.POINTER(datum_t),
791
openpgp_crt_fmt_t]
792
openpgp_crt_import.restype = _error_code
793
794
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
795
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
796
ctypes.POINTER(ctypes.c_uint)]
797
openpgp_crt_verify_self.restype = _error_code
798
799
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
800
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
801
openpgp_crt_deinit.restype = None
802
803
openpgp_crt_get_fingerprint = (
804
_library.gnutls_openpgp_crt_get_fingerprint)
805
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
806
ctypes.c_void_p,
807
ctypes.POINTER(
808
ctypes.c_size_t)]
809
openpgp_crt_get_fingerprint.restype = _error_code
810
811
if check_version(b"3.6.4"):
812
certificate_type_get2 = _library.gnutls_certificate_type_get2
813
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
814
certificate_type_get2.restype = _error_code
815
816
# Remove non-public functions
817
del _error_code, _retry_on_error
818
819
820
def call_pipe(connection, # : multiprocessing.Connection
821
func, *args, **kwargs):
822
"""This function is meant to be called by multiprocessing.Process
823
824
This function runs func(*args, **kwargs), and writes the resulting
825
return value on the provided multiprocessing.Connection.
826
"""
827
connection.send(func(*args, **kwargs))
828
connection.close()
829
830
831
class Client:
382
def timedelta_to_milliseconds(td):
383
"Convert a datetime.timedelta() to milliseconds"
384
return ((td.days * 24 * 60 * 60 * 1000)
385
+ (td.seconds * 1000)
386
+ (td.microseconds // 1000))
387
388
class Client(object):
832
389
"""A representation of a client host served by this server.
833
390
834
391
Attributes:
835
392
approved: bool(); 'None' if not yet approved/disapproved
836
393
approval_delay: datetime.timedelta(); Time to wait for approval
837
394
approval_duration: datetime.timedelta(); Duration of one approval
838
checker: multiprocessing.Process(); a running checker process used
839
to see if the client lives. 'None' if no process is
840
running.
841
checker_callback_tag: a GLib event source tag, or None
395
checker: subprocess.Popen(); a running checker process used
396
to see if the client lives.
397
'None' if no process is running.
398
checker_callback_tag: a gobject event source tag, or None
842
399
checker_command: string; External command which is run to check
843
400
if client lives. %() expansions are done at
844
401
runtime with vars(self) as dict, so that for
845
402
instance %(name)s can be used in the command.
846
checker_initiator_tag: a GLib event source tag, or None
403
checker_initiator_tag: a gobject event source tag, or None
847
404
created: datetime.datetime(); (UTC) object creation
848
405
client_structure: Object describing what attributes a client has
849
406
and is used for storing the client at exit
850
407
current_checker_command: string; current running checker_command
851
disable_initiator_tag: a GLib event source tag, or None
408
disable_initiator_tag: a gobject event source tag, or None
852
409
enabled: bool()
853
410
fingerprint: string (40 or 32 hexadecimal digits); used to
854
uniquely identify an OpenPGP client
855
key_id: string (64 hexadecimal digits); used to uniquely identify
856
a client using raw public keys
411
uniquely identify the client
857
412
host: string; available for use by the checker command
858
413
interval: datetime.timedelta(); How often to start a new checker
859
414
last_approval_request: datetime.datetime(); (UTC) or None
860
415
last_checked_ok: datetime.datetime(); (UTC) or None
861
416
last_checker_status: integer between 0 and 255 reflecting exit
862
417
status of last checker. -1 reflects crashed
863
checker, -2 means no checker completed yet.
864
last_checker_signal: The signal which killed the last checker, if
865
last_checker_status is -1
418
checker, or None.
866
419
last_enabled: datetime.datetime(); (UTC) or None
867
420
name: string; from the config file, used in log messages and
868
421
D-Bus identifiers
869
422
secret: bytestring; sent verbatim (over TLS) to client
870
423
timeout: datetime.timedelta(); How long from last_checked_ok
871
424
until this client is disabled
872
extended_timeout: extra long timeout when secret has been sent
425
extended_timeout: extra long timeout when password has been sent
873
426
runtime_expansions: Allowed attributes for runtime expansion.
874
427
expires: datetime.datetime(); time (UTC) when a client will be
875
428
disabled, or None
876
server_settings: The server_settings dict from main()
877
429
"""
878
430
879
431
runtime_expansions = ("approval_delay", "approval_duration",
880
"created", "enabled", "expires", "key_id",
881
"fingerprint", "host", "interval",
882
"last_approval_request", "last_checked_ok",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
883
434
"last_enabled", "name", "timeout")
884
client_defaults = {
885
"timeout": "PT5M",
886
"extended_timeout": "PT15M",
887
"interval": "PT2M",
888
"checker": "fping -q -- %%(host)s",
889
"host": "",
890
"approval_delay": "PT0S",
891
"approval_duration": "PT1S",
892
"approved_by_default": "True",
893
"enabled": "True",
894
}
435
client_defaults = { "timeout": "5m",
436
"extended_timeout": "15m",
437
"interval": "2m",
438
"checker": "fping -q -- %%(host)s",
439
"host": "",
440
"approval_delay": "0s",
441
"approval_duration": "1s",
442
"approved_by_default": "True",
443
"enabled": "True",
444
}
445
446
def timeout_milliseconds(self):
447
"Return the 'timeout' attribute in milliseconds"
448
return timedelta_to_milliseconds(self.timeout)
449
450
def extended_timeout_milliseconds(self):
451
"Return the 'extended_timeout' attribute in milliseconds"
452
return timedelta_to_milliseconds(self.extended_timeout)
453
454
def interval_milliseconds(self):
455
"Return the 'interval' attribute in milliseconds"
456
return timedelta_to_milliseconds(self.interval)
457
458
def approval_delay_milliseconds(self):
459
return timedelta_to_milliseconds(self.approval_delay)
895
460
896
461
@staticmethod
897
462
def config_parser(config):
905
470
for client_name in config.sections():
906
471
section = dict(config.items(client_name))
907
472
client = settings[client_name] = {}
908
473
909
474
client["host"] = section["host"]
910
475
# Reformat values from string types to Python types
911
476
client["approved_by_default"] = config.getboolean(
912
477
client_name, "approved_by_default")
913
478
client["enabled"] = config.getboolean(client_name,
914
479
"enabled")
915
916
# Uppercase and remove spaces from key_id and fingerprint
917
# for later comparison purposes with return value from the
918
# key_id() and fingerprint() functions
919
client["key_id"] = (section.get("key_id", "").upper()
920
.replace(" ", ""))
480
921
481
client["fingerprint"] = (section["fingerprint"].upper()
922
482
.replace(" ", ""))
923
483
if "secret" in section:
924
client["secret"] = codecs.decode(section["secret"]
925
.encode("utf-8"),
926
"base64")
484
client["secret"] = section["secret"].decode("base64")
927
485
elif "secfile" in section:
928
486
with open(os.path.expanduser(os.path.expandvars
929
487
(section["secfile"])),
930
488
"rb") as secfile:
931
489
client["secret"] = secfile.read()
932
490
else:
933
raise TypeError("No secret or secfile for section {}"
934
.format(section))
491
raise TypeError("No secret or secfile for section %s"
492
% section)
935
493
client["timeout"] = string_to_delta(section["timeout"])
936
494
client["extended_timeout"] = string_to_delta(
937
495
section["extended_timeout"])
943
501
client["checker_command"] = section["checker"]
944
502
client["last_approval_request"] = None
945
503
client["last_checked_ok"] = None
946
client["last_checker_status"] = -2
947
504
client["last_checker_status"] = None
505
948
506
return settings
949
950
def __init__(self, settings, name=None, server_settings=None):
507
508
509
def __init__(self, settings, name = None):
510
"""Note: the 'checker' key in 'config' sets the
511
'checker_command' attribute and *not* the 'checker'
512
attribute."""
951
513
self.name = name
952
if server_settings is None:
953
server_settings = {}
954
self.server_settings = server_settings
955
514
# adding all client settings
956
for setting, value in settings.items():
515
for setting, value in settings.iteritems():
957
516
setattr(self, setting, value)
958
517
959
518
if self.enabled:
960
519
if not hasattr(self, "last_enabled"):
961
520
self.last_enabled = datetime.datetime.utcnow()
965
524
else:
966
525
self.last_enabled = None
967
526
self.expires = None
968
527
969
528
logger.debug("Creating client %r", self.name)
970
logger.debug(" Key ID: %s", self.key_id)
529
# Uppercase and remove spaces from fingerprint for later
530
# comparison purposes with return value from the fingerprint()
531
# function
971
532
logger.debug(" Fingerprint: %s", self.fingerprint)
972
533
self.created = settings.get("created",
973
534
datetime.datetime.utcnow())
980
541
self.current_checker_command = None
981
542
self.approved = None
982
543
self.approvals_pending = 0
983
self.changedstate = multiprocessing_manager.Condition(
984
multiprocessing_manager.Lock())
985
self.client_structure = [attr
986
for attr in self.__dict__.keys()
544
self.changedstate = (multiprocessing_manager
545
.Condition(multiprocessing_manager
546
.Lock()))
547
self.client_structure = [attr for attr in
548
self.__dict__.iterkeys()
987
549
if not attr.startswith("_")]
988
550
self.client_structure.append("client_structure")
989
990
for name, t in inspect.getmembers(
991
type(self), lambda obj: isinstance(obj, property)):
551
552
for name, t in inspect.getmembers(type(self),
553
lambda obj:
554
isinstance(obj,
555
property)):
992
556
if not name.startswith("_"):
993
557
self.client_structure.append(name)
994
558
995
559
# Send notice to process children that client state has changed
996
560
def send_changedstate(self):
997
561
with self.changedstate:
998
562
self.changedstate.notify_all()
999
563
1000
564
def enable(self):
1001
565
"""Start this client's checker and timeout hooks"""
1002
566
if getattr(self, "enabled", False):
1003
567
# Already enabled
1004
568
return
569
self.send_changedstate()
1005
570
self.expires = datetime.datetime.utcnow() + self.timeout
1006
571
self.enabled = True
1007
572
self.last_enabled = datetime.datetime.utcnow()
1008
573
self.init_checker()
1009
self.send_changedstate()
1010
574
1011
575
def disable(self, quiet=True):
1012
576
"""Disable this client."""
1013
577
if not getattr(self, "enabled", False):
1014
578
return False
1015
579
if not quiet:
580
self.send_changedstate()
581
if not quiet:
1016
582
logger.info("Disabling client %s", self.name)
1017
if getattr(self, "disable_initiator_tag", None) is not None:
1018
GLib.source_remove(self.disable_initiator_tag)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
1019
585
self.disable_initiator_tag = None
1020
586
self.expires = None
1021
if getattr(self, "checker_initiator_tag", None) is not None:
1022
GLib.source_remove(self.checker_initiator_tag)
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
1023
589
self.checker_initiator_tag = None
1024
590
self.stop_checker()
1025
591
self.enabled = False
1026
if not quiet:
1027
self.send_changedstate()
1028
# Do not run this again if called by a GLib.timeout_add
592
# Do not run this again if called by a gobject.timeout_add
1029
593
return False
1030
594
1031
595
def __del__(self):
1032
596
self.disable()
1033
597
1034
598
def init_checker(self):
1035
599
# Schedule a new checker to be started an 'interval' from now,
1036
600
# and every interval from then on.
1037
if self.checker_initiator_tag is not None:
1038
GLib.source_remove(self.checker_initiator_tag)
1039
self.checker_initiator_tag = GLib.timeout_add(
1040
int(self.interval.total_seconds() * 1000),
1041
self.start_checker)
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
1042
604
# 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)
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
1047
608
# Also start a new checker *right now*.
1048
609
self.start_checker()
1049
1050
def checker_callback(self, source, condition, connection,
1051
command):
610
611
def checker_callback(self, pid, condition, command):
1052
612
"""The checker has completed, so take appropriate actions."""
1053
# Read return code from connection (see call_pipe)
1054
returncode = connection.recv()
1055
connection.close()
1056
if self.checker is not None:
1057
self.checker.join()
1058
613
self.checker_callback_tag = None
1059
614
self.checker = None
1060
1061
if returncode >= 0:
1062
self.last_checker_status = returncode
1063
self.last_checker_signal = None
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
1064
617
if self.last_checker_status == 0:
1065
618
logger.info("Checker for %(name)s succeeded",
1066
619
vars(self))
1067
620
self.checked_ok()
1068
621
else:
1069
logger.info("Checker for %(name)s failed", vars(self))
622
logger.info("Checker for %(name)s failed",
623
vars(self))
1070
624
else:
1071
625
self.last_checker_status = -1
1072
self.last_checker_signal = -returncode
1073
626
logger.warning("Checker for %(name)s crashed?",
1074
627
vars(self))
1075
return False
1076
1077
def checked_ok(self):
1078
"""Assert that the client has been seen, alive and well."""
1079
self.last_checked_ok = datetime.datetime.utcnow()
1080
self.last_checker_status = 0
1081
self.last_checker_signal = None
1082
self.bump_timeout()
1083
1084
def bump_timeout(self, timeout=None):
1085
"""Bump up the timeout for this client."""
628
629
def checked_ok(self, timeout=None):
630
"""Bump up the timeout for this client.
631
632
This should only be called when the client has been seen,
633
alive and well.
634
"""
1086
635
if timeout is None:
1087
636
timeout = self.timeout
637
self.last_checked_ok = datetime.datetime.utcnow()
1088
638
if self.disable_initiator_tag is not None:
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = None
639
gobject.source_remove(self.disable_initiator_tag)
1091
640
if getattr(self, "enabled", False):
1092
self.disable_initiator_tag = GLib.timeout_add(
1093
int(timeout.total_seconds() * 1000), self.disable)
641
self.disable_initiator_tag = (gobject.timeout_add
642
(timedelta_to_milliseconds
643
(timeout), self.disable))
1094
644
self.expires = datetime.datetime.utcnow() + timeout
1095
645
1096
646
def need_approval(self):
1097
647
self.last_approval_request = datetime.datetime.utcnow()
1098
648
1099
649
def start_checker(self):
1100
650
"""Start a new checker subprocess if one is not running.
1101
651
1102
652
If a checker already exists, leave it running and do
1103
653
nothing."""
1104
654
# The reason for not killing a running checker is that if we
1105
# did that, and if a checker (for some reason) started running
1106
# slowly and taking more than 'interval' time, then the client
1107
# would inevitably timeout, since no checker would get a
1108
# chance to run to completion. If we instead leave running
655
# did that, then if a checker (for some reason) started
656
# running slowly and taking more than 'interval' time, the
657
# client would inevitably timeout, since no checker would get
658
# a chance to run to completion. If we instead leave running
1109
659
# checkers alone, the checker would have to take more time
1110
660
# than 'timeout' for the client to be disabled, which is as it
1111
661
# should be.
1112
1113
if self.checker is not None and not self.checker.is_alive():
1114
logger.warning("Checker was not alive; joining")
1115
self.checker.join()
1116
self.checker = None
662
663
# If a checker exists, make sure it is not a zombie
664
try:
665
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
666
except (AttributeError, OSError) as error:
667
if (isinstance(error, OSError)
668
and error.errno != errno.ECHILD):
669
raise error
670
else:
671
if pid:
672
logger.warning("Checker was a zombie")
673
gobject.source_remove(self.checker_callback_tag)
674
self.checker_callback(pid, status,
675
self.current_checker_command)
1117
676
# Start a new checker if needed
1118
677
if self.checker is None:
1119
# Escape attributes for the shell
1120
escaped_attrs = {
1121
attr: re.escape(str(getattr(self, attr)))
1122
for attr in self.runtime_expansions}
1123
678
try:
1124
command = self.checker_command % escaped_attrs
1125
except TypeError as error:
1126
logger.error('Could not format string "%s"',
1127
self.checker_command,
1128
exc_info=error)
1129
return True # Try again later
679
# In case checker_command has exactly one % operator
680
command = self.checker_command % self.host
681
except TypeError:
682
# Escape attributes for the shell
683
escaped_attrs = dict(
684
(attr,
685
re.escape(unicode(str(getattr(self, attr, "")),
686
errors=
687
'replace')))
688
for attr in
689
self.runtime_expansions)
690
691
try:
692
command = self.checker_command % escaped_attrs
693
except TypeError as error:
694
logger.error('Could not format string "%s":'
695
' %s', self.checker_command, error)
696
return True # Try again later
1130
697
self.current_checker_command = command
1131
logger.info("Starting checker %r for %s", command,
1132
self.name)
1133
# We don't need to redirect stdout and stderr, since
1134
# in normal mode, that is already done by daemon(),
1135
# and in debug mode we don't want to. (Stdin is
1136
# always replaced by /dev/null.)
1137
# The exception is when not debugging but nevertheless
1138
# running in the foreground; use the previously
1139
# created wnull.
1140
popen_args = {"close_fds": True,
1141
"shell": True,
1142
"cwd": "/"}
1143
if (not self.server_settings["debug"]
1144
and self.server_settings["foreground"]):
1145
popen_args.update({"stdout": wnull,
1146
"stderr": wnull})
1147
pipe = multiprocessing.Pipe(duplex=False)
1148
self.checker = multiprocessing.Process(
1149
target=call_pipe,
1150
args=(pipe[1], subprocess.call, command),
1151
kwargs=popen_args)
1152
self.checker.start()
1153
self.checker_callback_tag = GLib.io_add_watch(
1154
GLib.IOChannel.unix_new(pipe[0].fileno()),
1155
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1156
self.checker_callback, pipe[0], command)
1157
# Re-run this periodically if run by GLib.timeout_add
698
try:
699
logger.info("Starting checker %r for %s",
700
command, self.name)
701
# We don't need to redirect stdout and stderr, since
702
# in normal mode, that is already done by daemon(),
703
# and in debug mode we don't want to. (Stdin is
704
# always replaced by /dev/null.)
705
self.checker = subprocess.Popen(command,
706
close_fds=True,
707
shell=True, cwd="/")
708
self.checker_callback_tag = (gobject.child_watch_add
709
(self.checker.pid,
710
self.checker_callback,
711
data=command))
712
# The checker may have completed before the gobject
713
# watch was added. Check for this.
714
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
715
if pid:
716
gobject.source_remove(self.checker_callback_tag)
717
self.checker_callback(pid, status, command)
718
except OSError as error:
719
logger.error("Failed to start subprocess: %s",
720
error)
721
# Re-run this periodically if run by gobject.timeout_add
1158
722
return True
1159
723
1160
724
def stop_checker(self):
1161
725
"""Force the checker process, if any, to stop."""
1162
726
if self.checker_callback_tag:
1163
GLib.source_remove(self.checker_callback_tag)
727
gobject.source_remove(self.checker_callback_tag)
1164
728
self.checker_callback_tag = None
1165
729
if getattr(self, "checker", None) is None:
1166
730
return
1167
731
logger.debug("Stopping checker for %(name)s", vars(self))
1168
self.checker.terminate()
732
try:
733
os.kill(self.checker.pid, signal.SIGTERM)
734
#time.sleep(0.5)
735
#if self.checker.poll() is None:
736
# os.kill(self.checker.pid, signal.SIGKILL)
737
except OSError as error:
738
if error.errno != errno.ESRCH: # No such process
739
raise
1169
740
self.checker = None
1170
741
1171
742
1172
def dbus_service_property(dbus_interface,
1173
signature="v",
1174
access="readwrite",
1175
byte_arrays=False):
743
def dbus_service_property(dbus_interface, signature="v",
744
access="readwrite", byte_arrays=False):
1176
745
"""Decorators for marking methods of a DBusObjectWithProperties to
1177
746
become properties on the D-Bus.
1178
747
1179
748
The decorated method will be called with no arguments by "Get"
1180
749
and with one argument by "Set".
1181
750
1182
751
The parameters, where they are supported, are the same as
1183
752
dbus.service.method, except there is only "signature", since the
1184
753
type from Get() and the type sent to Set() is the same.
1187
756
# "Set" method, so we fail early here:
1188
757
if byte_arrays and signature != "ay":
1189
758
raise ValueError("Byte arrays not supported for non-'ay'"
1190
" signature {!r}".format(signature))
1191
759
" signature %r" % signature)
1192
760
def decorator(func):
1193
761
func._dbus_is_property = True
1194
762
func._dbus_interface = dbus_interface
1197
765
func._dbus_name = func.__name__
1198
766
if func._dbus_name.endswith("_dbus_property"):
1199
767
func._dbus_name = func._dbus_name[:-14]
1200
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1201
return func
1202
1203
return decorator
1204
1205
1206
def dbus_interface_annotations(dbus_interface):
1207
"""Decorator for marking functions returning interface annotations
1208
1209
Usage:
1210
1211
@dbus_interface_annotations("org.example.Interface")
1212
def _foo(self): # Function name does not matter
1213
return {"org.freedesktop.DBus.Deprecated": "true",
1214
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1215
"false"}
1216
"""
1217
1218
def decorator(func):
1219
func._dbus_is_interface = True
1220
func._dbus_interface = dbus_interface
1221
func._dbus_name = dbus_interface
1222
return func
1223
1224
return decorator
1225
1226
1227
def dbus_annotations(annotations):
1228
"""Decorator to annotate D-Bus methods, signals or properties
1229
Usage:
1230
1231
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1232
"org.freedesktop.DBus.Property."
1233
"EmitsChangedSignal": "false"})
1234
@dbus_service_property("org.example.Interface", signature="b",
1235
access="r")
1236
def Property_dbus_property(self):
1237
return dbus.Boolean(False)
1238
1239
See also the DBusObjectWithAnnotations class.
1240
"""
1241
1242
def decorator(func):
1243
func._dbus_annotations = annotations
1244
return func
1245
768
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
769
return func
1246
770
return decorator
1247
771
1248
772
1249
773
class DBusPropertyException(dbus.exceptions.DBusException):
1250
774
"""A base class for D-Bus property-related exceptions
1251
775
"""
1252
pass
776
def __unicode__(self):
777
return unicode(str(self))
1253
778
1254
779
1255
780
class DBusPropertyAccessException(DBusPropertyException):
1264
789
pass
1265
790
1266
791
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):
792
class DBusObjectWithProperties(dbus.service.Object):
1357
793
"""A D-Bus object with properties.
1358
794
1359
795
Classes inheriting from this can use the dbus_service_property
1360
796
decorator to expose methods as D-Bus properties. It exposes the
1361
797
standard Get(), Set(), and GetAll() methods on the D-Bus.
1362
798
"""
1363
799
800
@staticmethod
801
def _is_dbus_property(obj):
802
return getattr(obj, "_dbus_is_property", False)
803
804
def _get_all_dbus_properties(self):
805
"""Returns a generator of (name, attribute) pairs
806
"""
807
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
808
for cls in self.__class__.__mro__
809
for name, prop in
810
inspect.getmembers(cls, self._is_dbus_property))
811
1364
812
def _get_dbus_property(self, interface_name, property_name):
1365
813
"""Returns a bound method if one exists which is a D-Bus
1366
814
property with the specified name and interface.
1367
815
"""
1368
for cls in self.__class__.__mro__:
1369
for name, value in inspect.getmembers(
1370
cls, self._is_dbus_thing("property")):
816
for cls in self.__class__.__mro__:
817
for name, value in (inspect.getmembers
818
(cls, self._is_dbus_property)):
1371
819
if (value._dbus_name == property_name
1372
820
and value._dbus_interface == interface_name):
1373
821
return value.__get__(self)
1374
822
1375
823
# No such property
1376
raise DBusPropertyNotFound("{}:{}.{}".format(
1377
self.dbus_object_path, interface_name, property_name))
1378
1379
@classmethod
1380
def _get_all_interface_names(cls):
1381
"""Get a sequence of all interfaces supported by an object"""
1382
return (name for name in set(getattr(getattr(x, attr),
1383
"_dbus_interface", None)
1384
for x in (inspect.getmro(cls))
1385
for attr in dir(x))
1386
if name is not None)
1387
1388
@dbus.service.method(dbus.PROPERTIES_IFACE,
1389
in_signature="ss",
824
raise DBusPropertyNotFound(self.dbus_object_path + ":"
825
+ interface_name + "."
826
+ property_name)
827
828
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1390
829
out_signature="v")
1391
830
def Get(self, interface_name, property_name):
1392
831
"""Standard D-Bus property Get() method, see D-Bus standard.
1398
837
if not hasattr(value, "variant_level"):
1399
838
return value
1400
839
return type(value)(value, variant_level=value.variant_level+1)
1401
840
1402
841
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1403
842
def Set(self, interface_name, property_name, value):
1404
843
"""Standard D-Bus property Set() method, see D-Bus standard.
1410
849
# The byte_arrays option is not supported yet on
1411
850
# signatures other than "ay".
1412
851
if prop._dbus_signature != "ay":
1413
raise ValueError("Byte arrays not supported for non-"
1414
"'ay' signature {!r}"
1415
.format(prop._dbus_signature))
1416
value = dbus.ByteArray(bytes(value))
852
raise ValueError
853
value = dbus.ByteArray(b''.join(chr(byte)
854
for byte in value))
1417
855
prop(value)
1418
1419
@dbus.service.method(dbus.PROPERTIES_IFACE,
1420
in_signature="s",
856
857
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1421
858
out_signature="a{sv}")
1422
859
def GetAll(self, interface_name):
1423
860
"""Standard D-Bus property GetAll() method, see D-Bus
1424
861
standard.
1425
862
1426
863
Note: Will not include properties with access="write".
1427
864
"""
1428
865
properties = {}
1429
for name, prop in self._get_all_dbus_things("property"):
866
for name, prop in self._get_all_dbus_properties():
1430
867
if (interface_name
1431
868
and interface_name != prop._dbus_interface):
1432
869
# Interface non-empty but did not match
1438
875
if not hasattr(value, "variant_level"):
1439
876
properties[name] = value
1440
877
continue
1441
properties[name] = type(value)(
1442
value, variant_level=value.variant_level + 1)
878
properties[name] = type(value)(value, variant_level=
879
value.variant_level+1)
1443
880
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
881
1453
882
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1454
883
out_signature="s",
1455
884
path_keyword='object_path',
1456
885
connection_keyword='connection')
1457
886
def Introspect(self, object_path, connection):
1458
"""Overloading of standard D-Bus method.
1459
1460
Inserts property tags and interface annotation tags.
887
"""Standard D-Bus method, overloaded to insert property tags.
1461
888
"""
1462
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1463
object_path,
1464
connection)
889
xmlstring = dbus.service.Object.Introspect(self, object_path,
890
connection)
1465
891
try:
1466
892
document = xml.dom.minidom.parseString(xmlstring)
1467
1468
893
def make_tag(document, name, prop):
1469
894
e = document.createElement("property")
1470
895
e.setAttribute("name", name)
1471
896
e.setAttribute("type", prop._dbus_signature)
1472
897
e.setAttribute("access", prop._dbus_access)
1473
898
return e
1474
1475
899
for if_tag in document.getElementsByTagName("interface"):
1476
# Add property tags
1477
900
for tag in (make_tag(document, name, prop)
1478
901
for name, prop
1479
in self._get_all_dbus_things("property")
902
in self._get_all_dbus_properties()
1480
903
if prop._dbus_interface
1481
904
== if_tag.getAttribute("name")):
1482
905
if_tag.appendChild(tag)
1483
# Add annotation tags for properties
1484
for tag in if_tag.getElementsByTagName("property"):
1485
annots = dict()
1486
for name, prop in self._get_all_dbus_things(
1487
"property"):
1488
if (name == tag.getAttribute("name")
1489
and prop._dbus_interface
1490
== if_tag.getAttribute("name")):
1491
annots.update(getattr(
1492
prop, "_dbus_annotations", {}))
1493
for name, value in annots.items():
1494
ann_tag = document.createElement(
1495
"annotation")
1496
ann_tag.setAttribute("name", name)
1497
ann_tag.setAttribute("value", value)
1498
tag.appendChild(ann_tag)
1499
906
# Add the names to the return values for the
1500
907
# "org.freedesktop.DBus.Properties" methods
1501
908
if (if_tag.getAttribute("name")
1516
923
except (AttributeError, xml.dom.DOMException,
1517
924
xml.parsers.expat.ExpatError) as error:
1518
925
logger.error("Failed to override Introspection method",
1519
exc_info=error)
1520
return xmlstring
1521
1522
1523
try:
1524
dbus.OBJECT_MANAGER_IFACE
1525
except AttributeError:
1526
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1527
1528
1529
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1530
"""A D-Bus object with an ObjectManager.
1531
1532
Classes inheriting from this exposes the standard
1533
GetManagedObjects call and the InterfacesAdded and
1534
InterfacesRemoved signals on the standard
1535
"org.freedesktop.DBus.ObjectManager" interface.
1536
1537
Note: No signals are sent automatically; they must be sent
1538
manually.
1539
"""
1540
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1541
out_signature="a{oa{sa{sv}}}")
1542
def GetManagedObjects(self):
1543
"""This function must be overridden"""
1544
raise NotImplementedError()
1545
1546
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1547
signature="oa{sa{sv}}")
1548
def InterfacesAdded(self, object_path, interfaces_and_properties):
1549
pass
1550
1551
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1552
def InterfacesRemoved(self, object_path, interfaces):
1553
pass
1554
1555
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1556
out_signature="s",
1557
path_keyword='object_path',
1558
connection_keyword='connection')
1559
def Introspect(self, object_path, connection):
1560
"""Overloading of standard D-Bus method.
1561
1562
Override return argument name of GetManagedObjects to be
1563
"objpath_interfaces_and_properties"
1564
"""
1565
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1566
object_path,
1567
connection)
1568
try:
1569
document = xml.dom.minidom.parseString(xmlstring)
1570
1571
for if_tag in document.getElementsByTagName("interface"):
1572
# Fix argument name for the GetManagedObjects method
1573
if (if_tag.getAttribute("name")
1574
== dbus.OBJECT_MANAGER_IFACE):
1575
for cn in if_tag.getElementsByTagName("method"):
1576
if (cn.getAttribute("name")
1577
== "GetManagedObjects"):
1578
for arg in cn.getElementsByTagName("arg"):
1579
if (arg.getAttribute("direction")
1580
== "out"):
1581
arg.setAttribute(
1582
"name",
1583
"objpath_interfaces"
1584
"_and_properties")
1585
xmlstring = document.toxml("utf-8")
1586
document.unlink()
1587
except (AttributeError, xml.dom.DOMException,
1588
xml.parsers.expat.ExpatError) as error:
1589
logger.error("Failed to override Introspection method",
1590
exc_info=error)
1591
return xmlstring
1592
1593
1594
def datetime_to_dbus(dt, variant_level=0):
926
error)
927
return xmlstring
928
929
930
def datetime_to_dbus (dt, variant_level=0):
1595
931
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1596
932
if dt is None:
1597
return dbus.String("", variant_level=variant_level)
1598
return dbus.String(dt.isoformat(), variant_level=variant_level)
1599
1600
1601
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1602
"""A class decorator; applied to a subclass of
1603
dbus.service.Object, it will add alternate D-Bus attributes with
1604
interface names according to the "alt_interface_names" mapping.
1605
Usage:
1606
1607
@alternate_dbus_interfaces({"org.example.Interface":
1608
"net.example.AlternateInterface"})
1609
class SampleDBusObject(dbus.service.Object):
1610
@dbus.service.method("org.example.Interface")
1611
def SampleDBusMethod():
1612
pass
1613
1614
The above "SampleDBusMethod" on "SampleDBusObject" will be
1615
reachable via two interfaces: "org.example.Interface" and
1616
"net.example.AlternateInterface", the latter of which will have
1617
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1618
"true", unless "deprecate" is passed with a False value.
1619
1620
This works for methods and signals, and also for D-Bus properties
1621
(from DBusObjectWithProperties) and interfaces (from the
1622
dbus_interface_annotations decorator).
933
return dbus.String("", variant_level = variant_level)
934
return dbus.String(dt.isoformat(),
935
variant_level=variant_level)
936
937
938
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
939
.__metaclass__):
940
"""Applied to an empty subclass of a D-Bus object, this metaclass
941
will add additional D-Bus attributes matching a certain pattern.
1623
942
"""
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):
943
def __new__(mcs, name, bases, attr):
944
# Go through all the base classes which could have D-Bus
945
# methods, signals, or properties in them
946
for base in (b for b in bases
947
if issubclass(b, dbus.service.Object)):
948
# Go though all attributes of the base class
949
for attrname, attribute in inspect.getmembers(base):
1632
950
# Ignore non-D-Bus attributes, and D-Bus attributes
1633
951
# with the wrong interface name
1634
952
if (not hasattr(attribute, "_dbus_interface")
1635
or not attribute._dbus_interface.startswith(
1636
orig_interface_name)):
953
or not attribute._dbus_interface
954
.startswith("se.recompile.Mandos")):
1637
955
continue
1638
956
# Create an alternate D-Bus interface name based on
1639
957
# the current name
1640
alt_interface = attribute._dbus_interface.replace(
1641
orig_interface_name, alt_interface_name)
1642
interface_names.add(alt_interface)
958
alt_interface = (attribute._dbus_interface
959
.replace("se.recompile.Mandos",
960
"se.bsnet.fukt.Mandos"))
1643
961
# Is this a D-Bus signal?
1644
962
if getattr(attribute, "_dbus_is_signal", False):
1645
# Extract the original non-method undecorated
1646
# function by black magic
1647
if sys.version_info.major == 2:
1648
nonmethod_func = (dict(
963
# Extract the original non-method function by
964
# black magic
965
nonmethod_func = (dict(
1649
966
zip(attribute.func_code.co_freevars,
1650
attribute.__closure__))
1651
["func"].cell_contents)
1652
else:
1653
nonmethod_func = (dict(
1654
zip(attribute.__code__.co_freevars,
1655
attribute.__closure__))
1656
["func"].cell_contents)
967
attribute.__closure__))["func"]
968
.cell_contents)
1657
969
# Create a new, but exactly alike, function
1658
970
# object, and decorate it to be a new D-Bus signal
1659
971
# with the alternate D-Bus interface name
1660
new_function = copy_function(nonmethod_func)
1661
new_function = (dbus.service.signal(
1662
alt_interface,
1663
attribute._dbus_signature)(new_function))
1664
# Copy annotations, if any
1665
try:
1666
new_function._dbus_annotations = dict(
1667
attribute._dbus_annotations)
1668
except AttributeError:
1669
pass
1670
972
new_function = (dbus.service.signal
973
(alt_interface,
974
attribute._dbus_signature)
975
(types.FunctionType(
976
nonmethod_func.func_code,
977
nonmethod_func.func_globals,
978
nonmethod_func.func_name,
979
nonmethod_func.func_defaults,
980
nonmethod_func.func_closure)))
1671
981
# Define a creator of a function to call both the
1672
# original and alternate functions, so both the
1673
# original and alternate signals gets sent when
1674
# the function is called
982
# old and new functions, so both the old and new
983
# signals gets sent when the function is called
1675
984
def fixscope(func1, func2):
1676
985
"""This function is a scope container to pass
1677
986
func1 and func2 to the "call_both" function
1678
987
outside of its arguments"""
1679
1680
@functools.wraps(func2)
1681
988
def call_both(*args, **kwargs):
1682
989
"""This function will emit two D-Bus
1683
990
signals by calling func1 and func2"""
1684
991
func1(*args, **kwargs)
1685
992
func2(*args, **kwargs)
1686
# Make wrapper function look like a D-Bus
1687
# signal
1688
for name, attr in inspect.getmembers(func2):
1689
if name.startswith("_dbus_"):
1690
setattr(call_both, name, attr)
1691
1692
993
return call_both
1693
994
# Create the "call_both" function and add it to
1694
995
# the class
1695
attr[attrname] = fixscope(attribute, new_function)
996
attr[attrname] = fixscope(attribute,
997
new_function)
1696
998
# Is this a D-Bus method?
1697
999
elif getattr(attribute, "_dbus_is_method", False):
1698
1000
# Create a new, but exactly alike, function
1699
1001
# object. Decorate it to be a new D-Bus method
1700
1002
# with the alternate D-Bus interface name. Add it
1701
1003
# to the class.
1702
attr[attrname] = (
1703
dbus.service.method(
1704
alt_interface,
1705
attribute._dbus_in_signature,
1706
attribute._dbus_out_signature)
1707
(copy_function(attribute)))
1708
# Copy annotations, if any
1709
try:
1710
attr[attrname]._dbus_annotations = dict(
1711
attribute._dbus_annotations)
1712
except AttributeError:
1713
pass
1004
attr[attrname] = (dbus.service.method
1005
(alt_interface,
1006
attribute._dbus_in_signature,
1007
attribute._dbus_out_signature)
1008
(types.FunctionType
1009
(attribute.func_code,
1010
attribute.func_globals,
1011
attribute.func_name,
1012
attribute.func_defaults,
1013
attribute.func_closure)))
1714
1014
# Is this a D-Bus property?
1715
1015
elif getattr(attribute, "_dbus_is_property", False):
1716
1016
# Create a new, but exactly alike, function
1717
1017
# object, and decorate it to be a new D-Bus
1718
1018
# property with the alternate D-Bus interface
1719
1019
# name. Add it to the class.
1720
attr[attrname] = (dbus_service_property(
1721
alt_interface, attribute._dbus_signature,
1722
attribute._dbus_access,
1723
attribute._dbus_get_args_options
1724
["byte_arrays"])
1725
(copy_function(attribute)))
1726
# Copy annotations, if any
1727
try:
1728
attr[attrname]._dbus_annotations = dict(
1729
attribute._dbus_annotations)
1730
except AttributeError:
1731
pass
1732
# Is this a D-Bus interface?
1733
elif getattr(attribute, "_dbus_is_interface", False):
1734
# Create a new, but exactly alike, function
1735
# object. Decorate it to be a new D-Bus interface
1736
# with the alternate D-Bus interface name. Add it
1737
# to the class.
1738
attr[attrname] = (
1739
dbus_interface_annotations(alt_interface)
1740
(copy_function(attribute)))
1741
if deprecate:
1742
# Deprecate all alternate interfaces
1743
iname = "_AlternateDBusNames_interface_annotation{}"
1744
for interface_name in interface_names:
1745
1746
@dbus_interface_annotations(interface_name)
1747
def func(self):
1748
return {"org.freedesktop.DBus.Deprecated":
1749
"true"}
1750
# Find an unused name
1751
for aname in (iname.format(i)
1752
for i in itertools.count()):
1753
if aname not in attr:
1754
attr[aname] = func
1755
break
1756
if interface_names:
1757
# Replace the class with a new subclass of it with
1758
# methods, signals, etc. as created above.
1759
if sys.version_info.major == 2:
1760
cls = type(b"{}Alternate".format(cls.__name__),
1761
(cls, ), attr)
1762
else:
1763
cls = type("{}Alternate".format(cls.__name__),
1764
(cls, ), attr)
1765
return cls
1766
1767
return wrapper
1768
1769
1770
@alternate_dbus_interfaces({"se.recompile.Mandos":
1771
"se.bsnet.fukt.Mandos"})
1020
attr[attrname] = (dbus_service_property
1021
(alt_interface,
1022
attribute._dbus_signature,
1023
attribute._dbus_access,
1024
attribute
1025
._dbus_get_args_options
1026
["byte_arrays"])
1027
(types.FunctionType
1028
(attribute.func_code,
1029
attribute.func_globals,
1030
attribute.func_name,
1031
attribute.func_defaults,
1032
attribute.func_closure)))
1033
return type.__new__(mcs, name, bases, attr)
1034
1035
1772
1036
class ClientDBus(Client, DBusObjectWithProperties):
1773
1037
"""A Client class using D-Bus
1774
1038
1775
1039
Attributes:
1776
1040
dbus_object_path: dbus.ObjectPath
1777
1041
bus: dbus.SystemBus()
1778
1042
"""
1779
1043
1780
1044
runtime_expansions = (Client.runtime_expansions
1781
+ ("dbus_object_path", ))
1782
1783
_interface = "se.recompile.Mandos.Client"
1784
1045
+ ("dbus_object_path",))
1046
1785
1047
# dbus.service.Object doesn't use super(), so we can't either.
1786
1787
def __init__(self, bus=None, *args, **kwargs):
1048
1049
def __init__(self, bus = None, *args, **kwargs):
1788
1050
self.bus = bus
1789
1051
Client.__init__(self, *args, **kwargs)
1052
self._approvals_pending = 0
1053
1054
self._approvals_pending = 0
1790
1055
# Only now, when this client is initialized, can it show up on
1791
1056
# the D-Bus
1792
client_object_name = str(self.name).translate(
1057
client_object_name = unicode(self.name).translate(
1793
1058
{ord("."): ord("_"),
1794
1059
ord("-"): ord("_")})
1795
self.dbus_object_path = dbus.ObjectPath(
1796
"/clients/" + client_object_name)
1060
self.dbus_object_path = (dbus.ObjectPath
1061
("/clients/" + client_object_name))
1797
1062
DBusObjectWithProperties.__init__(self, self.bus,
1798
1063
self.dbus_object_path)
1799
1800
def notifychangeproperty(transform_func, dbus_name,
1801
type_func=lambda x: x,
1802
variant_level=1,
1803
invalidate_only=False,
1804
_interface=_interface):
1064
1065
def notifychangeproperty(transform_func,
1066
dbus_name, type_func=lambda x: x,
1067
variant_level=1):
1805
1068
""" Modify a variable so that it's a property which announces
1806
1069
its changes to DBus.
1807
1070
1808
1071
transform_fun: Function that takes a value and a variant_level
1809
1072
and transforms it to a D-Bus type.
1810
1073
dbus_name: D-Bus name of the variable
1812
1075
to the D-Bus. Default: no transform
1813
1076
variant_level: D-Bus variant level. Default: 1
1814
1077
"""
1815
attrname = "_{}".format(dbus_name)
1816
1078
attrname = "_{0}".format(dbus_name)
1817
1079
def setter(self, value):
1818
1080
if hasattr(self, "dbus_object_path"):
1819
1081
if (not hasattr(self, attrname) or
1820
1082
type_func(getattr(self, attrname, None))
1821
1083
!= type_func(value)):
1822
if invalidate_only:
1823
self.PropertiesChanged(
1824
_interface, dbus.Dictionary(),
1825
dbus.Array((dbus_name, )))
1826
else:
1827
dbus_value = transform_func(
1828
type_func(value),
1829
variant_level=variant_level)
1830
self.PropertyChanged(dbus.String(dbus_name),
1831
dbus_value)
1832
self.PropertiesChanged(
1833
_interface,
1834
dbus.Dictionary({dbus.String(dbus_name):
1835
dbus_value}),
1836
dbus.Array())
1084
dbus_value = transform_func(type_func(value),
1085
variant_level
1086
=variant_level)
1087
self.PropertyChanged(dbus.String(dbus_name),
1088
dbus_value)
1837
1089
setattr(self, attrname, value)
1838
1090
1839
1091
return property(lambda self: getattr(self, attrname), setter)
1840
1092
1093
1841
1094
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1842
1095
approvals_pending = notifychangeproperty(dbus.Boolean,
1843
1096
"ApprovalPending",
1844
type_func=bool)
1097
type_func = bool)
1845
1098
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1846
1099
last_enabled = notifychangeproperty(datetime_to_dbus,
1847
1100
"LastEnabled")
1848
checker = notifychangeproperty(
1849
dbus.Boolean, "CheckerRunning",
1850
type_func=lambda checker: checker is not None)
1101
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1102
type_func = lambda checker:
1103
checker is not None)
1851
1104
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1852
1105
"LastCheckedOK")
1853
last_checker_status = notifychangeproperty(dbus.Int16,
1854
"LastCheckerStatus")
1855
1106
last_approval_request = notifychangeproperty(
1856
1107
datetime_to_dbus, "LastApprovalRequest")
1857
1108
approved_by_default = notifychangeproperty(dbus.Boolean,
1858
1109
"ApprovedByDefault")
1859
approval_delay = notifychangeproperty(
1860
dbus.UInt64, "ApprovalDelay",
1861
type_func=lambda td: td.total_seconds() * 1000)
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1862
1114
approval_duration = notifychangeproperty(
1863
1115
dbus.UInt64, "ApprovalDuration",
1864
type_func=lambda td: td.total_seconds() * 1000)
1116
type_func = timedelta_to_milliseconds)
1865
1117
host = notifychangeproperty(dbus.String, "Host")
1866
timeout = notifychangeproperty(
1867
dbus.UInt64, "Timeout",
1868
type_func=lambda td: td.total_seconds() * 1000)
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1869
1121
extended_timeout = notifychangeproperty(
1870
1122
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)
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1875
1128
checker_command = notifychangeproperty(dbus.String, "Checker")
1876
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1877
invalidate_only=True)
1878
1129
1879
1130
del notifychangeproperty
1880
1131
1881
1132
def __del__(self, *args, **kwargs):
1882
1133
try:
1883
1134
self.remove_from_connection()
1886
1137
if hasattr(DBusObjectWithProperties, "__del__"):
1887
1138
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1888
1139
Client.__del__(self, *args, **kwargs)
1889
1890
def checker_callback(self, source, condition,
1891
connection, command, *args, **kwargs):
1892
ret = Client.checker_callback(self, source, condition,
1893
connection, command, *args,
1894
**kwargs)
1895
exitstatus = self.last_checker_status
1896
if exitstatus >= 0:
1140
1141
def checker_callback(self, pid, condition, command,
1142
*args, **kwargs):
1143
self.checker_callback_tag = None
1144
self.checker = None
1145
if os.WIFEXITED(condition):
1146
exitstatus = os.WEXITSTATUS(condition)
1897
1147
# Emit D-Bus signal
1898
1148
self.CheckerCompleted(dbus.Int16(exitstatus),
1899
# This is specific to GNU libC
1900
dbus.Int64(exitstatus << 8),
1149
dbus.Int64(condition),
1901
1150
dbus.String(command))
1902
1151
else:
1903
1152
# Emit D-Bus signal
1904
1153
self.CheckerCompleted(dbus.Int16(-1),
1905
dbus.Int64(
1906
# This is specific to GNU libC
1907
(exitstatus << 8)
1908
| self.last_checker_signal),
1154
dbus.Int64(condition),
1909
1155
dbus.String(command))
1910
return ret
1911
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1159
1912
1160
def start_checker(self, *args, **kwargs):
1913
old_checker_pid = getattr(self.checker, "pid", None)
1161
old_checker = self.checker
1162
if self.checker is not None:
1163
old_checker_pid = self.checker.pid
1164
else:
1165
old_checker_pid = None
1914
1166
r = Client.start_checker(self, *args, **kwargs)
1915
1167
# Only if new checker process was started
1916
1168
if (self.checker is not None
1918
1170
# Emit D-Bus signal
1919
1171
self.CheckerStarted(self.current_checker_command)
1920
1172
return r
1921
1173
1922
1174
def _reset_approved(self):
1923
1175
self.approved = None
1924
1176
return False
1925
1177
1926
1178
def approve(self, value=True):
1179
self.send_changedstate()
1927
1180
self.approved = value
1928
GLib.timeout_add(int(self.approval_duration.total_seconds()
1929
* 1000), self._reset_approved)
1930
self.send_changedstate()
1931
1932
# D-Bus methods, signals & properties
1933
1934
# Interfaces
1935
1936
# Signals
1937
1181
gobject.timeout_add(timedelta_to_milliseconds
1182
(self.approval_duration),
1183
self._reset_approved)
1184
1185
1186
## D-Bus methods, signals & properties
1187
_interface = "se.recompile.Mandos.Client"
1188
1189
## Signals
1190
1938
1191
# CheckerCompleted - signal
1939
1192
@dbus.service.signal(_interface, signature="nxs")
1940
1193
def CheckerCompleted(self, exitcode, waitstatus, command):
1941
1194
"D-Bus signal"
1942
1195
pass
1943
1196
1944
1197
# CheckerStarted - signal
1945
1198
@dbus.service.signal(_interface, signature="s")
1946
1199
def CheckerStarted(self, command):
1947
1200
"D-Bus signal"
1948
1201
pass
1949
1202
1950
1203
# PropertyChanged - signal
1951
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1952
1204
@dbus.service.signal(_interface, signature="sv")
1953
1205
def PropertyChanged(self, property, value):
1954
1206
"D-Bus signal"
1955
1207
pass
1956
1208
1957
1209
# GotSecret - signal
1958
1210
@dbus.service.signal(_interface)
1959
1211
def GotSecret(self):
1962
1214
server to mandos-client
1963
1215
"""
1964
1216
pass
1965
1217
1966
1218
# Rejected - signal
1967
1219
@dbus.service.signal(_interface, signature="s")
1968
1220
def Rejected(self, reason):
1969
1221
"D-Bus signal"
1970
1222
pass
1971
1223
1972
1224
# NeedApproval - signal
1973
1225
@dbus.service.signal(_interface, signature="tb")
1974
1226
def NeedApproval(self, timeout, default):
1975
1227
"D-Bus signal"
1976
1228
return self.need_approval()
1977
1978
# Methods
1979
1229
1230
# NeRwequest - signal
1231
@dbus.service.signal(_interface, signature="s")
1232
def NewRequest(self, ip):
1233
"""D-Bus signal
1234
Is sent after a client request a password.
1235
"""
1236
pass
1237
1238
## Methods
1239
1980
1240
# Approve - method
1981
1241
@dbus.service.method(_interface, in_signature="b")
1982
1242
def Approve(self, value):
1983
1243
self.approve(value)
1984
1244
1985
1245
# CheckedOK - method
1986
1246
@dbus.service.method(_interface)
1987
1247
def CheckedOK(self):
1988
1248
self.checked_ok()
1989
1249
1990
1250
# Enable - method
1991
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1992
1251
@dbus.service.method(_interface)
1993
1252
def Enable(self):
1994
1253
"D-Bus method"
1995
1254
self.enable()
1996
1255
1997
1256
# StartChecker - method
1998
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1999
1257
@dbus.service.method(_interface)
2000
1258
def StartChecker(self):
2001
1259
"D-Bus method"
2002
1260
self.start_checker()
2003
1261
2004
1262
# Disable - method
2005
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2006
1263
@dbus.service.method(_interface)
2007
1264
def Disable(self):
2008
1265
"D-Bus method"
2009
1266
self.disable()
2010
1267
2011
1268
# StopChecker - method
2012
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2013
1269
@dbus.service.method(_interface)
2014
1270
def StopChecker(self):
2015
1271
self.stop_checker()
2016
2017
# Properties
2018
1272
1273
## Properties
1274
2019
1275
# ApprovalPending - property
2020
1276
@dbus_service_property(_interface, signature="b", access="read")
2021
1277
def ApprovalPending_dbus_property(self):
2022
1278
return dbus.Boolean(bool(self.approvals_pending))
2023
1279
2024
1280
# ApprovedByDefault - property
2025
@dbus_service_property(_interface,
2026
signature="b",
1281
@dbus_service_property(_interface, signature="b",
2027
1282
access="readwrite")
2028
1283
def ApprovedByDefault_dbus_property(self, value=None):
2029
1284
if value is None: # get
2030
1285
return dbus.Boolean(self.approved_by_default)
2031
1286
self.approved_by_default = bool(value)
2032
1287
2033
1288
# ApprovalDelay - property
2034
@dbus_service_property(_interface,
2035
signature="t",
1289
@dbus_service_property(_interface, signature="t",
2036
1290
access="readwrite")
2037
1291
def ApprovalDelay_dbus_property(self, value=None):
2038
1292
if value is None: # get
2039
return dbus.UInt64(self.approval_delay.total_seconds()
2040
* 1000)
1293
return dbus.UInt64(self.approval_delay_milliseconds())
2041
1294
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2042
1295
2043
1296
# ApprovalDuration - property
2044
@dbus_service_property(_interface,
2045
signature="t",
1297
@dbus_service_property(_interface, signature="t",
2046
1298
access="readwrite")
2047
1299
def ApprovalDuration_dbus_property(self, value=None):
2048
1300
if value is None: # get
2049
return dbus.UInt64(self.approval_duration.total_seconds()
2050
* 1000)
1301
return dbus.UInt64(timedelta_to_milliseconds(
1302
self.approval_duration))
2051
1303
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2052
1304
2053
1305
# Name - property
2054
@dbus_annotations(
2055
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2056
1306
@dbus_service_property(_interface, signature="s", access="read")
2057
1307
def Name_dbus_property(self):
2058
1308
return dbus.String(self.name)
2059
2060
# KeyID - property
2061
@dbus_annotations(
2062
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2063
@dbus_service_property(_interface, signature="s", access="read")
2064
def KeyID_dbus_property(self):
2065
return dbus.String(self.key_id)
2066
1309
2067
1310
# Fingerprint - property
2068
@dbus_annotations(
2069
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2070
1311
@dbus_service_property(_interface, signature="s", access="read")
2071
1312
def Fingerprint_dbus_property(self):
2072
1313
return dbus.String(self.fingerprint)
2073
1314
2074
1315
# Host - property
2075
@dbus_service_property(_interface,
2076
signature="s",
1316
@dbus_service_property(_interface, signature="s",
2077
1317
access="readwrite")
2078
1318
def Host_dbus_property(self, value=None):
2079
1319
if value is None: # get
2080
1320
return dbus.String(self.host)
2081
self.host = str(value)
2082
1321
self.host = unicode(value)
1322
2083
1323
# Created - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
1324
@dbus_service_property(_interface, signature="s", access="read")
2087
1325
def Created_dbus_property(self):
2088
1326
return datetime_to_dbus(self.created)
2089
1327
2090
1328
# LastEnabled - property
2091
1329
@dbus_service_property(_interface, signature="s", access="read")
2092
1330
def LastEnabled_dbus_property(self):
2093
1331
return datetime_to_dbus(self.last_enabled)
2094
1332
2095
1333
# Enabled - property
2096
@dbus_service_property(_interface,
2097
signature="b",
1334
@dbus_service_property(_interface, signature="b",
2098
1335
access="readwrite")
2099
1336
def Enabled_dbus_property(self, value=None):
2100
1337
if value is None: # get
2103
1340
self.enable()
2104
1341
else:
2105
1342
self.disable()
2106
1343
2107
1344
# LastCheckedOK - property
2108
@dbus_service_property(_interface,
2109
signature="s",
1345
@dbus_service_property(_interface, signature="s",
2110
1346
access="readwrite")
2111
1347
def LastCheckedOK_dbus_property(self, value=None):
2112
1348
if value is not None:
2113
1349
self.checked_ok()
2114
1350
return
2115
1351
return datetime_to_dbus(self.last_checked_ok)
2116
2117
# LastCheckerStatus - property
2118
@dbus_service_property(_interface, signature="n", access="read")
2119
def LastCheckerStatus_dbus_property(self):
2120
return dbus.Int16(self.last_checker_status)
2121
1352
2122
1353
# Expires - property
2123
1354
@dbus_service_property(_interface, signature="s", access="read")
2124
1355
def Expires_dbus_property(self):
2125
1356
return datetime_to_dbus(self.expires)
2126
1357
2127
1358
# LastApprovalRequest - property
2128
1359
@dbus_service_property(_interface, signature="s", access="read")
2129
1360
def LastApprovalRequest_dbus_property(self):
2130
1361
return datetime_to_dbus(self.last_approval_request)
2131
1362
2132
1363
# Timeout - property
2133
@dbus_service_property(_interface,
2134
signature="t",
1364
@dbus_service_property(_interface, signature="t",
2135
1365
access="readwrite")
2136
1366
def Timeout_dbus_property(self, value=None):
2137
1367
if value is None: # get
2138
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2139
old_timeout = self.timeout
1368
return dbus.UInt64(self.timeout_milliseconds())
2140
1369
self.timeout = datetime.timedelta(0, 0, 0, value)
2141
# Reschedule disabling
1370
# Reschedule timeout
2142
1371
if self.enabled:
2143
1372
now = datetime.datetime.utcnow()
2144
self.expires += self.timeout - old_timeout
2145
if self.expires <= now:
1373
time_to_die = timedelta_to_milliseconds(
1374
(self.last_checked_ok + self.timeout) - now)
1375
if time_to_die <= 0:
2146
1376
# The timeout has passed
2147
1377
self.disable()
2148
1378
else:
1379
self.expires = (now +
1380
datetime.timedelta(milliseconds =
1381
time_to_die))
2149
1382
if (getattr(self, "disable_initiator_tag", None)
2150
1383
is None):
2151
1384
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
1385
gobject.source_remove(self.disable_initiator_tag)
1386
self.disable_initiator_tag = (gobject.timeout_add
1387
(time_to_die,
1388
self.disable))
1389
2157
1390
# ExtendedTimeout - property
2158
@dbus_service_property(_interface,
2159
signature="t",
1391
@dbus_service_property(_interface, signature="t",
2160
1392
access="readwrite")
2161
1393
def ExtendedTimeout_dbus_property(self, value=None):
2162
1394
if value is None: # get
2163
return dbus.UInt64(self.extended_timeout.total_seconds()
2164
* 1000)
1395
return dbus.UInt64(self.extended_timeout_milliseconds())
2165
1396
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2166
1397
2167
1398
# Interval - property
2168
@dbus_service_property(_interface,
2169
signature="t",
1399
@dbus_service_property(_interface, signature="t",
2170
1400
access="readwrite")
2171
1401
def Interval_dbus_property(self, value=None):
2172
1402
if value is None: # get
2173
return dbus.UInt64(self.interval.total_seconds() * 1000)
1403
return dbus.UInt64(self.interval_milliseconds())
2174
1404
self.interval = datetime.timedelta(0, 0, 0, value)
2175
1405
if getattr(self, "checker_initiator_tag", None) is None:
2176
1406
return
2177
1407
if self.enabled:
2178
1408
# 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
1409
gobject.source_remove(self.checker_initiator_tag)
1410
self.checker_initiator_tag = (gobject.timeout_add
1411
(value, self.start_checker))
1412
self.start_checker() # Start one now, too
1413
2184
1414
# Checker - property
2185
@dbus_service_property(_interface,
2186
signature="s",
1415
@dbus_service_property(_interface, signature="s",
2187
1416
access="readwrite")
2188
1417
def Checker_dbus_property(self, value=None):
2189
1418
if value is None: # get
2190
1419
return dbus.String(self.checker_command)
2191
self.checker_command = str(value)
2192
1420
self.checker_command = unicode(value)
1421
2193
1422
# CheckerRunning - property
2194
@dbus_service_property(_interface,
2195
signature="b",
1423
@dbus_service_property(_interface, signature="b",
2196
1424
access="readwrite")
2197
1425
def CheckerRunning_dbus_property(self, value=None):
2198
1426
if value is None: # get
2201
1429
self.start_checker()
2202
1430
else:
2203
1431
self.stop_checker()
2204
1432
2205
1433
# ObjectPath - property
2206
@dbus_annotations(
2207
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2208
"org.freedesktop.DBus.Deprecated": "true"})
2209
1434
@dbus_service_property(_interface, signature="o", access="read")
2210
1435
def ObjectPath_dbus_property(self):
2211
return self.dbus_object_path # is already a dbus.ObjectPath
2212
1436
return self.dbus_object_path # is already a dbus.ObjectPath
1437
2213
1438
# Secret = property
2214
@dbus_annotations(
2215
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2216
"invalidates"})
2217
@dbus_service_property(_interface,
2218
signature="ay",
2219
access="write",
2220
byte_arrays=True)
1439
@dbus_service_property(_interface, signature="ay",
1440
access="write", byte_arrays=True)
2221
1441
def Secret_dbus_property(self, value):
2222
self.secret = bytes(value)
2223
1442
self.secret = str(value)
1443
2224
1444
del _interface
2225
1445
2226
1446
2227
class ProxyClient:
2228
def __init__(self, child_pipe, key_id, fpr, address):
1447
class ProxyClient(object):
1448
def __init__(self, child_pipe, fpr, address):
2229
1449
self._pipe = child_pipe
2230
self._pipe.send(('init', key_id, fpr, address))
1450
self._pipe.send(('init', fpr, address))
2231
1451
if not self._pipe.recv():
2232
raise KeyError(key_id or fpr)
2233
1452
raise KeyError()
1453
2234
1454
def __getattribute__(self, name):
2235
1455
if name == '_pipe':
2236
1456
return super(ProxyClient, self).__getattribute__(name)
2239
1459
if data[0] == 'data':
2240
1460
return data[1]
2241
1461
if data[0] == 'function':
2242
2243
1462
def func(*args, **kwargs):
2244
1463
self._pipe.send(('funcall', name, args, kwargs))
2245
1464
return self._pipe.recv()[1]
2246
2247
1465
return func
2248
1466
2249
1467
def __setattr__(self, name, value):
2250
1468
if name == '_pipe':
2251
1469
return super(ProxyClient, self).__setattr__(name, value)
2252
1470
self._pipe.send(('setattr', name, value))
2253
1471
2254
1472
1473
class ClientDBusTransitional(ClientDBus):
1474
__metaclass__ = AlternateDBusNamesMetaclass
1475
1476
2255
1477
class ClientHandler(socketserver.BaseRequestHandler, object):
2256
1478
"""A class to handle client connections.
2257
1479
2258
1480
Instantiated once for each connection to handle it.
2259
1481
Note: This will run in its own forked process."""
2260
1482
2261
1483
def handle(self):
2262
1484
with contextlib.closing(self.server.child_pipe) as child_pipe:
2263
1485
logger.info("TCP connection from: %s",
2264
str(self.client_address))
1486
unicode(self.client_address))
2265
1487
logger.debug("Pipe FD: %d",
2266
1488
self.server.child_pipe.fileno())
2267
2268
session = gnutls.ClientSession(self.request)
2269
2270
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2271
# "+AES-256-CBC", "+SHA1",
2272
# "+COMP-NULL", "+CTYPE-OPENPGP",
2273
# "+DHE-DSS"))
1489
1490
session = (gnutls.connection
1491
.ClientSession(self.request,
1492
gnutls.connection
1493
.X509Credentials()))
1494
1495
# Note: gnutls.connection.X509Credentials is really a
1496
# generic GnuTLS certificate credentials object so long as
1497
# no X.509 keys are added to it. Therefore, we can use it
1498
# here despite using OpenPGP certificates.
1499
1500
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1501
# "+AES-256-CBC", "+SHA1",
1502
# "+COMP-NULL", "+CTYPE-OPENPGP",
1503
# "+DHE-DSS"))
2274
1504
# Use a fallback default, since this MUST be set.
2275
1505
priority = self.server.gnutls_priority
2276
1506
if priority is None:
2277
1507
priority = "NORMAL"
2278
gnutls.priority_set_direct(session._c_object,
2279
priority.encode("utf-8"),
2280
None)
2281
1508
(gnutls.library.functions
1509
.gnutls_priority_set_direct(session._c_object,
1510
priority, None))
1511
2282
1512
# Start communication using the Mandos protocol
2283
1513
# Get protocol number
2284
1514
line = self.request.makefile().readline()
2285
1515
logger.debug("Protocol version: %r", line)
2286
1516
try:
2287
1517
if int(line.strip().split()[0]) > 1:
2288
raise RuntimeError(line)
1518
raise RuntimeError
2289
1519
except (ValueError, IndexError, RuntimeError) as error:
2290
1520
logger.error("Unknown protocol version: %s", error)
2291
1521
return
2292
1522
2293
1523
# Start GnuTLS connection
2294
1524
try:
2295
1525
session.handshake()
2296
except gnutls.Error as error:
1526
except gnutls.errors.GNUTLSError as error:
2297
1527
logger.warning("Handshake failed: %s", error)
2298
1528
# Do not run session.bye() here: the session is not
2299
1529
# established. Just abandon the request.
2300
1530
return
2301
1531
logger.debug("Handshake succeeded")
2302
1532
2303
1533
approval_required = False
2304
1534
try:
2305
if gnutls.has_rawpk:
2306
fpr = b""
2307
try:
2308
key_id = self.key_id(
2309
self.peer_certificate(session))
2310
except (TypeError, gnutls.Error) as error:
2311
logger.warning("Bad certificate: %s", error)
2312
return
2313
logger.debug("Key ID: %s", key_id)
2314
2315
else:
2316
key_id = b""
2317
try:
2318
fpr = self.fingerprint(
2319
self.peer_certificate(session))
2320
except (TypeError, gnutls.Error) as error:
2321
logger.warning("Bad certificate: %s", error)
2322
return
2323
logger.debug("Fingerprint: %s", fpr)
2324
2325
try:
2326
client = ProxyClient(child_pipe, key_id, fpr,
1535
try:
1536
fpr = self.fingerprint(self.peer_certificate
1537
(session))
1538
except (TypeError,
1539
gnutls.errors.GNUTLSError) as error:
1540
logger.warning("Bad certificate: %s", error)
1541
return
1542
logger.debug("Fingerprint: %s", fpr)
1543
1544
try:
1545
client = ProxyClient(child_pipe, fpr,
2327
1546
self.client_address)
2328
1547
except KeyError:
2329
1548
return
2330
1549
1550
if self.server.use_dbus:
1551
# Emit D-Bus signal
1552
client.NewRequest(str(self.client_address))
1553
2331
1554
if client.approval_delay:
2332
1555
delay = client.approval_delay
2333
1556
client.approvals_pending += 1
2334
1557
approval_required = True
2335
1558
2336
1559
while True:
2337
1560
if not client.enabled:
2338
1561
logger.info("Client %s is disabled",
2339
client.name)
1562
client.name)
2340
1563
if self.server.use_dbus:
2341
1564
# Emit D-Bus signal
2342
1565
client.Rejected("Disabled")
2343
1566
return
2344
1567
2345
1568
if client.approved or not client.approval_delay:
2346
# We are approved or approval is disabled
1569
#We are approved or approval is disabled
2347
1570
break
2348
1571
elif client.approved is None:
2349
1572
logger.info("Client %s needs approval",
2351
1574
if self.server.use_dbus:
2352
1575
# Emit D-Bus signal
2353
1576
client.NeedApproval(
2354
client.approval_delay.total_seconds()
2355
* 1000, client.approved_by_default)
1577
client.approval_delay_milliseconds(),
1578
client.approved_by_default)
2356
1579
else:
2357
1580
logger.warning("Client %s was not approved",
2358
1581
client.name)
2360
1583
# Emit D-Bus signal
2361
1584
client.Rejected("Denied")
2362
1585
return
2363
2364
# wait until timeout or approved
1586
1587
#wait until timeout or approved
2365
1588
time = datetime.datetime.now()
2366
1589
client.changedstate.acquire()
2367
client.changedstate.wait(delay.total_seconds())
1590
(client.changedstate.wait
1591
(float(client.timedelta_to_milliseconds(delay)
1592
/ 1000)))
2368
1593
client.changedstate.release()
2369
1594
time2 = datetime.datetime.now()
2370
1595
if (time2 - time) >= delay:
2380
1605
break
2381
1606
else:
2382
1607
delay -= time2 - time
2383
2384
try:
2385
session.send(client.secret)
2386
except gnutls.Error as error:
2387
logger.warning("gnutls send failed",
2388
exc_info=error)
2389
return
2390
1608
1609
sent_size = 0
1610
while sent_size < len(client.secret):
1611
try:
1612
sent = session.send(client.secret[sent_size:])
1613
except gnutls.errors.GNUTLSError as error:
1614
logger.warning("gnutls send failed")
1615
return
1616
logger.debug("Sent: %d, remaining: %d",
1617
sent, len(client.secret)
1618
- (sent_size + sent))
1619
sent_size += sent
1620
2391
1621
logger.info("Sending secret to %s", client.name)
2392
1622
# bump the timeout using extended_timeout
2393
client.bump_timeout(client.extended_timeout)
1623
client.checked_ok(client.extended_timeout)
2394
1624
if self.server.use_dbus:
2395
1625
# Emit D-Bus signal
2396
1626
client.GotSecret()
2397
1627
2398
1628
finally:
2399
1629
if approval_required:
2400
1630
client.approvals_pending -= 1
2401
1631
try:
2402
1632
session.bye()
2403
except gnutls.Error as error:
2404
logger.warning("GnuTLS bye failed",
2405
exc_info=error)
2406
1633
except gnutls.errors.GNUTLSError as error:
1634
logger.warning("GnuTLS bye failed")
1635
2407
1636
@staticmethod
2408
1637
def peer_certificate(session):
2409
"Return the peer's certificate as a bytestring"
2410
try:
2411
cert_type = gnutls.certificate_type_get2(session._c_object,
2412
gnutls.CTYPE_PEERS)
2413
except AttributeError:
2414
cert_type = gnutls.certificate_type_get(session._c_object)
2415
if gnutls.has_rawpk:
2416
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2417
else:
2418
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2419
# If not a valid certificate type...
2420
if cert_type not in valid_cert_types:
2421
logger.info("Cert type %r not in %r", cert_type,
2422
valid_cert_types)
2423
# ...return invalid data
2424
return b""
1638
"Return the peer's OpenPGP certificate as a bytestring"
1639
# If not an OpenPGP certificate...
1640
if (gnutls.library.functions
1641
.gnutls_certificate_type_get(session._c_object)
1642
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1643
# ...do the normal thing
1644
return session.peer_certificate
2425
1645
list_size = ctypes.c_uint(1)
2426
cert_list = (gnutls.certificate_get_peers
1646
cert_list = (gnutls.library.functions
1647
.gnutls_certificate_get_peers
2427
1648
(session._c_object, ctypes.byref(list_size)))
2428
1649
if not bool(cert_list) and list_size.value != 0:
2429
raise gnutls.Error("error getting peer certificate")
1650
raise gnutls.errors.GNUTLSError("error getting peer"
1651
" certificate")
2430
1652
if list_size.value == 0:
2431
1653
return None
2432
1654
cert = cert_list[0]
2433
1655
return ctypes.string_at(cert.data, cert.size)
2434
2435
@staticmethod
2436
def key_id(certificate):
2437
"Convert a certificate bytestring to a hexdigit key ID"
2438
# New GnuTLS "datum" with the public key
2439
datum = gnutls.datum_t(
2440
ctypes.cast(ctypes.c_char_p(certificate),
2441
ctypes.POINTER(ctypes.c_ubyte)),
2442
ctypes.c_uint(len(certificate)))
2443
# XXX all these need to be created in the gnutls "module"
2444
# New empty GnuTLS certificate
2445
pubkey = gnutls.pubkey_t()
2446
gnutls.pubkey_init(ctypes.byref(pubkey))
2447
# Import the raw public key into the certificate
2448
gnutls.pubkey_import(pubkey,
2449
ctypes.byref(datum),
2450
gnutls.X509_FMT_DER)
2451
# New buffer for the key ID
2452
buf = ctypes.create_string_buffer(32)
2453
buf_len = ctypes.c_size_t(len(buf))
2454
# Get the key ID from the raw public key into the buffer
2455
gnutls.pubkey_get_key_id(pubkey,
2456
gnutls.KEYID_USE_SHA256,
2457
ctypes.cast(ctypes.byref(buf),
2458
ctypes.POINTER(ctypes.c_ubyte)),
2459
ctypes.byref(buf_len))
2460
# Deinit the certificate
2461
gnutls.pubkey_deinit(pubkey)
2462
2463
# Convert the buffer to a Python bytestring
2464
key_id = ctypes.string_at(buf, buf_len.value)
2465
# Convert the bytestring to hexadecimal notation
2466
hex_key_id = binascii.hexlify(key_id).upper()
2467
return hex_key_id
2468
1656
2469
1657
@staticmethod
2470
1658
def fingerprint(openpgp):
2471
1659
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2472
1660
# New GnuTLS "datum" with the OpenPGP public key
2473
datum = gnutls.datum_t(
2474
ctypes.cast(ctypes.c_char_p(openpgp),
2475
ctypes.POINTER(ctypes.c_ubyte)),
2476
ctypes.c_uint(len(openpgp)))
1661
datum = (gnutls.library.types
1662
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1663
ctypes.POINTER
1664
(ctypes.c_ubyte)),
1665
ctypes.c_uint(len(openpgp))))
2477
1666
# New empty GnuTLS certificate
2478
crt = gnutls.openpgp_crt_t()
2479
gnutls.openpgp_crt_init(ctypes.byref(crt))
1667
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2480
1670
# Import the OpenPGP public key into the certificate
2481
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2482
gnutls.OPENPGP_FMT_RAW)
1671
(gnutls.library.functions
1672
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1673
gnutls.library.constants
1674
.GNUTLS_OPENPGP_FMT_RAW))
2483
1675
# Verify the self signature in the key
2484
1676
crtverify = ctypes.c_uint()
2485
gnutls.openpgp_crt_verify_self(crt, 0,
2486
ctypes.byref(crtverify))
1677
(gnutls.library.functions
1678
.gnutls_openpgp_crt_verify_self(crt, 0,
1679
ctypes.byref(crtverify)))
2487
1680
if crtverify.value != 0:
2488
gnutls.openpgp_crt_deinit(crt)
2489
raise gnutls.CertificateSecurityError(code
2490
=crtverify.value)
1681
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1682
raise (gnutls.errors.CertificateSecurityError
1683
("Verify failed"))
2491
1684
# New buffer for the fingerprint
2492
1685
buf = ctypes.create_string_buffer(20)
2493
1686
buf_len = ctypes.c_size_t()
2494
1687
# Get the fingerprint from the certificate into the buffer
2495
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2496
ctypes.byref(buf_len))
1688
(gnutls.library.functions
1689
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1690
ctypes.byref(buf_len)))
2497
1691
# Deinit the certificate
2498
gnutls.openpgp_crt_deinit(crt)
1692
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2499
1693
# Convert the buffer to a Python bytestring
2500
1694
fpr = ctypes.string_at(buf, buf_len.value)
2501
1695
# Convert the bytestring to hexadecimal notation
2503
1697
return hex_fpr
2504
1698
2505
1699
2506
class MultiprocessingMixIn:
1700
class MultiprocessingMixIn(object):
2507
1701
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2508
2509
1702
def sub_process_main(self, request, address):
2510
1703
try:
2511
1704
self.finish_request(request, address)
2512
1705
except Exception:
2513
1706
self.handle_error(request, address)
2514
1707
self.close_request(request)
2515
1708
2516
1709
def process_request(self, request, address):
2517
1710
"""Start a new process to process the request."""
2518
proc = multiprocessing.Process(target=self.sub_process_main,
2519
args=(request, address))
1711
proc = multiprocessing.Process(target = self.sub_process_main,
1712
args = (request,
1713
address))
2520
1714
proc.start()
2521
1715
return proc
2522
1716
2523
1717
2524
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1718
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2525
1719
""" adds a pipe to the MixIn """
2526
2527
1720
def process_request(self, request, client_address):
2528
1721
"""Overrides and wraps the original process_request().
2529
1722
2530
1723
This function creates a new pipe in self.pipe
2531
1724
"""
2532
1725
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2533
1726
2534
1727
proc = MultiprocessingMixIn.process_request(self, request,
2535
1728
client_address)
2536
1729
self.child_pipe.close()
2537
1730
self.add_pipe(parent_pipe, proc)
2538
1731
2539
1732
def add_pipe(self, parent_pipe, proc):
2540
1733
"""Dummy function; override as necessary"""
2541
raise NotImplementedError()
1734
raise NotImplementedError
2542
1735
2543
1736
2544
1737
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2545
socketserver.TCPServer):
1738
socketserver.TCPServer, object):
2546
1739
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2547
1740
2548
1741
Attributes:
2549
1742
enabled: Boolean; whether this server is activated yet
2550
1743
interface: None or a network interface name (string)
2551
1744
use_ipv6: Boolean; to use IPv6 or not
2552
1745
"""
2553
2554
1746
def __init__(self, server_address, RequestHandlerClass,
2555
interface=None,
2556
use_ipv6=True,
2557
socketfd=None):
2558
"""If socketfd is set, use that file descriptor instead of
2559
creating a new one with socket.socket().
2560
"""
1747
interface=None, use_ipv6=True):
2561
1748
self.interface = interface
2562
1749
if use_ipv6:
2563
1750
self.address_family = socket.AF_INET6
2564
if socketfd is not None:
2565
# Save the file descriptor
2566
self.socketfd = socketfd
2567
# Save the original socket.socket() function
2568
self.socket_socket = socket.socket
2569
2570
# To implement --socket, we monkey patch socket.socket.
2571
#
2572
# (When socketserver.TCPServer is a new-style class, we
2573
# could make self.socket into a property instead of monkey
2574
# patching socket.socket.)
2575
#
2576
# Create a one-time-only replacement for socket.socket()
2577
@functools.wraps(socket.socket)
2578
def socket_wrapper(*args, **kwargs):
2579
# Restore original function so subsequent calls are
2580
# not affected.
2581
socket.socket = self.socket_socket
2582
del self.socket_socket
2583
# This time only, return a new socket object from the
2584
# saved file descriptor.
2585
return socket.fromfd(self.socketfd, *args, **kwargs)
2586
# Replace socket.socket() function with wrapper
2587
socket.socket = socket_wrapper
2588
# The socketserver.TCPServer.__init__ will call
2589
# socket.socket(), which might be our replacement,
2590
# socket_wrapper(), if socketfd was set.
2591
1751
socketserver.TCPServer.__init__(self, server_address,
2592
1752
RequestHandlerClass)
2593
2594
1753
def server_bind(self):
2595
1754
"""This overrides the normal server_bind() function
2596
1755
to bind to an interface if one was specified, and also NOT to
2597
1756
bind to an address or port if they were not specified."""
2598
global SO_BINDTODEVICE
2599
1757
if self.interface is not None:
2600
1758
if SO_BINDTODEVICE is None:
2601
# Fall back to a hard-coded value which seems to be
2602
# common enough.
2603
logger.warning("SO_BINDTODEVICE not found, trying 25")
2604
SO_BINDTODEVICE = 25
2605
try:
2606
self.socket.setsockopt(
2607
socket.SOL_SOCKET, SO_BINDTODEVICE,
2608
(self.interface + "\0").encode("utf-8"))
2609
except socket.error as error:
2610
if error.errno == errno.EPERM:
2611
logger.error("No permission to bind to"
2612
" interface %s", self.interface)
2613
elif error.errno == errno.ENOPROTOOPT:
2614
logger.error("SO_BINDTODEVICE not available;"
2615
" cannot bind to interface %s",
2616
self.interface)
2617
elif error.errno == errno.ENODEV:
2618
logger.error("Interface %s does not exist,"
2619
" cannot bind", self.interface)
2620
else:
2621
raise
1759
logger.error("SO_BINDTODEVICE does not exist;"
1760
" cannot bind to interface %s",
1761
self.interface)
1762
else:
1763
try:
1764
self.socket.setsockopt(socket.SOL_SOCKET,
1765
SO_BINDTODEVICE,
1766
str(self.interface
1767
+ '\0'))
1768
except socket.error as error:
1769
if error[0] == errno.EPERM:
1770
logger.error("No permission to"
1771
" bind to interface %s",
1772
self.interface)
1773
elif error[0] == errno.ENOPROTOOPT:
1774
logger.error("SO_BINDTODEVICE not available;"
1775
" cannot bind to interface %s",
1776
self.interface)
1777
else:
1778
raise
2622
1779
# Only bind(2) the socket if we really need to.
2623
1780
if self.server_address[0] or self.server_address[1]:
2624
if self.server_address[1]:
2625
self.allow_reuse_address = True
2626
1781
if not self.server_address[0]:
2627
1782
if self.address_family == socket.AF_INET6:
2628
any_address = "::" # in6addr_any
1783
any_address = "::" # in6addr_any
2629
1784
else:
2630
any_address = "0.0.0.0" # INADDR_ANY
1785
any_address = socket.INADDR_ANY
2631
1786
self.server_address = (any_address,
2632
1787
self.server_address[1])
2633
1788
elif not self.server_address[1]:
2634
self.server_address = (self.server_address[0], 0)
1789
self.server_address = (self.server_address[0],
1790
0)
2635
1791
# if self.interface:
2636
1792
# self.server_address = (self.server_address[0],
2637
1793
# 0, # port
2643
1799
2644
1800
class MandosServer(IPv6_TCPServer):
2645
1801
"""Mandos server.
2646
1802
2647
1803
Attributes:
2648
1804
clients: set of Client objects
2649
1805
gnutls_priority GnuTLS priority string
2650
1806
use_dbus: Boolean; to emit D-Bus signals or not
2651
2652
Assumes a GLib.MainLoop event loop.
1807
1808
Assumes a gobject.MainLoop event loop.
2653
1809
"""
2654
2655
1810
def __init__(self, server_address, RequestHandlerClass,
2656
interface=None,
2657
use_ipv6=True,
2658
clients=None,
2659
gnutls_priority=None,
2660
use_dbus=True,
2661
socketfd=None):
1811
interface=None, use_ipv6=True, clients=None,
1812
gnutls_priority=None, use_dbus=True):
2662
1813
self.enabled = False
2663
1814
self.clients = clients
2664
1815
if self.clients is None:
2667
1818
self.gnutls_priority = gnutls_priority
2668
1819
IPv6_TCPServer.__init__(self, server_address,
2669
1820
RequestHandlerClass,
2670
interface=interface,
2671
use_ipv6=use_ipv6,
2672
socketfd=socketfd)
2673
1821
interface = interface,
1822
use_ipv6 = use_ipv6)
2674
1823
def server_activate(self):
2675
1824
if self.enabled:
2676
1825
return socketserver.TCPServer.server_activate(self)
2677
1826
2678
1827
def enable(self):
2679
1828
self.enabled = True
2680
1829
2681
1830
def add_pipe(self, parent_pipe, proc):
2682
1831
# Call "handle_ipc" for both data and EOF events
2683
GLib.io_add_watch(
2684
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2685
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2686
functools.partial(self.handle_ipc,
2687
parent_pipe=parent_pipe,
2688
proc=proc))
2689
2690
def handle_ipc(self, source, condition,
2691
parent_pipe=None,
2692
proc=None,
2693
client_object=None):
1832
gobject.io_add_watch(parent_pipe.fileno(),
1833
gobject.IO_IN | gobject.IO_HUP,
1834
functools.partial(self.handle_ipc,
1835
parent_pipe =
1836
parent_pipe,
1837
proc = proc))
1838
1839
def handle_ipc(self, source, condition, parent_pipe=None,
1840
proc = None, client_object=None):
1841
condition_names = {
1842
gobject.IO_IN: "IN", # There is data to read.
1843
gobject.IO_OUT: "OUT", # Data can be written (without
1844
# blocking).
1845
gobject.IO_PRI: "PRI", # There is urgent data to read.
1846
gobject.IO_ERR: "ERR", # Error condition.
1847
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1848
# broken, usually for pipes and
1849
# sockets).
1850
}
1851
conditions_string = ' | '.join(name
1852
for cond, name in
1853
condition_names.iteritems()
1854
if cond & condition)
2694
1855
# error, or the other end of multiprocessing.Pipe has closed
2695
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1856
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2696
1857
# Wait for other process to exit
2697
1858
proc.join()
2698
1859
return False
2699
1860
2700
1861
# Read a request from the child
2701
1862
request = parent_pipe.recv()
2702
1863
command = request[0]
2703
1864
2704
1865
if command == 'init':
2705
key_id = request[1].decode("ascii")
2706
fpr = request[2].decode("ascii")
2707
address = request[3]
2708
2709
for c in self.clients.values():
2710
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2711
continue
2712
if key_id and c.key_id == key_id:
2713
client = c
2714
break
2715
if fpr and c.fingerprint == fpr:
1866
fpr = request[1]
1867
address = request[2]
1868
1869
for c in self.clients.itervalues():
1870
if c.fingerprint == fpr:
2716
1871
client = c
2717
1872
break
2718
1873
else:
2719
logger.info("Client not found for key ID: %s, address"
2720
": %s", key_id or fpr, address)
1874
logger.info("Client not found for fingerprint: %s, ad"
1875
"dress: %s", fpr, address)
2721
1876
if self.use_dbus:
2722
1877
# Emit D-Bus signal
2723
mandos_dbus_service.ClientNotFound(key_id or fpr,
1878
mandos_dbus_service.ClientNotFound(fpr,
2724
1879
address[0])
2725
1880
parent_pipe.send(False)
2726
1881
return False
2727
2728
GLib.io_add_watch(
2729
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2730
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2731
functools.partial(self.handle_ipc,
2732
parent_pipe=parent_pipe,
2733
proc=proc,
2734
client_object=client))
1882
1883
gobject.io_add_watch(parent_pipe.fileno(),
1884
gobject.IO_IN | gobject.IO_HUP,
1885
functools.partial(self.handle_ipc,
1886
parent_pipe =
1887
parent_pipe,
1888
proc = proc,
1889
client_object =
1890
client))
2735
1891
parent_pipe.send(True)
2736
1892
# remove the old hook in favor of the new above hook on
2737
1893
# same fileno
2740
1896
funcname = request[1]
2741
1897
args = request[2]
2742
1898
kwargs = request[3]
2743
1899
2744
1900
parent_pipe.send(('data', getattr(client_object,
2745
1901
funcname)(*args,
2746
**kwargs)))
2747
1902
**kwargs)))
1903
2748
1904
if command == 'getattr':
2749
1905
attrname = request[1]
2750
if isinstance(client_object.__getattribute__(attrname),
2751
collections.Callable):
2752
parent_pipe.send(('function', ))
1906
if callable(client_object.__getattribute__(attrname)):
1907
parent_pipe.send(('function',))
2753
1908
else:
2754
parent_pipe.send((
2755
'data', client_object.__getattribute__(attrname)))
2756
1909
parent_pipe.send(('data', client_object
1910
.__getattribute__(attrname)))
1911
2757
1912
if command == 'setattr':
2758
1913
attrname = request[1]
2759
1914
value = request[2]
2760
1915
setattr(client_object, attrname, value)
2761
1916
2762
1917
return True
2763
1918
2764
1919
2765
def rfc3339_duration_to_delta(duration):
2766
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2767
2768
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2771
True
2772
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2773
True
2774
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2775
True
2776
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2777
True
2778
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2779
True
2780
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2781
True
2782
"""
2783
2784
# Parsing an RFC 3339 duration with regular expressions is not
2785
# possible - there would have to be multiple places for the same
2786
# values, like seconds. The current code, while more esoteric, is
2787
# cleaner without depending on a parsing library. If Python had a
2788
# built-in library for parsing we would use it, but we'd like to
2789
# avoid excessive use of external libraries.
2790
2791
# New type for defining tokens, syntax, and semantics all-in-one
2792
Token = collections.namedtuple("Token", (
2793
"regexp", # To match token; if "value" is not None, must have
2794
# a "group" containing digits
2795
"value", # datetime.timedelta or None
2796
"followers")) # Tokens valid after this token
2797
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2798
# the "duration" ABNF definition in RFC 3339, Appendix A.
2799
token_end = Token(re.compile(r"$"), None, frozenset())
2800
token_second = Token(re.compile(r"(\d+)S"),
2801
datetime.timedelta(seconds=1),
2802
frozenset((token_end, )))
2803
token_minute = Token(re.compile(r"(\d+)M"),
2804
datetime.timedelta(minutes=1),
2805
frozenset((token_second, token_end)))
2806
token_hour = Token(re.compile(r"(\d+)H"),
2807
datetime.timedelta(hours=1),
2808
frozenset((token_minute, token_end)))
2809
token_time = Token(re.compile(r"T"),
2810
None,
2811
frozenset((token_hour, token_minute,
2812
token_second)))
2813
token_day = Token(re.compile(r"(\d+)D"),
2814
datetime.timedelta(days=1),
2815
frozenset((token_time, token_end)))
2816
token_month = Token(re.compile(r"(\d+)M"),
2817
datetime.timedelta(weeks=4),
2818
frozenset((token_day, token_end)))
2819
token_year = Token(re.compile(r"(\d+)Y"),
2820
datetime.timedelta(weeks=52),
2821
frozenset((token_month, token_end)))
2822
token_week = Token(re.compile(r"(\d+)W"),
2823
datetime.timedelta(weeks=1),
2824
frozenset((token_end, )))
2825
token_duration = Token(re.compile(r"P"), None,
2826
frozenset((token_year, token_month,
2827
token_day, token_time,
2828
token_week)))
2829
# Define starting values:
2830
# Value so far
2831
value = datetime.timedelta()
2832
found_token = None
2833
# Following valid tokens
2834
followers = frozenset((token_duration, ))
2835
# String left to parse
2836
s = duration
2837
# Loop until end token is found
2838
while found_token is not token_end:
2839
# Search for any currently valid tokens
2840
for token in followers:
2841
match = token.regexp.match(s)
2842
if match is not None:
2843
# Token found
2844
if token.value is not None:
2845
# Value found, parse digits
2846
factor = int(match.group(1), 10)
2847
# Add to value so far
2848
value += factor * token.value
2849
# Strip token from string
2850
s = token.regexp.sub("", s, 1)
2851
# Go to found token
2852
found_token = token
2853
# Set valid next tokens
2854
followers = found_token.followers
2855
break
2856
else:
2857
# No currently valid tokens were found
2858
raise ValueError("Invalid RFC 3339 duration: {!r}"
2859
.format(duration))
2860
# End token found
2861
return value
2862
2863
2864
1920
def string_to_delta(interval):
2865
1921
"""Parse a string and return a datetime.timedelta
2866
2867
>>> string_to_delta('7d') == datetime.timedelta(7)
2868
True
2869
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2870
True
2871
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2872
True
2873
>>> string_to_delta('24h') == datetime.timedelta(1)
2874
True
2875
>>> string_to_delta('1w') == datetime.timedelta(7)
2876
True
2877
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2878
True
1922
1923
>>> string_to_delta('7d')
1924
datetime.timedelta(7)
1925
>>> string_to_delta('60s')
1926
datetime.timedelta(0, 60)
1927
>>> string_to_delta('60m')
1928
datetime.timedelta(0, 3600)
1929
>>> string_to_delta('24h')
1930
datetime.timedelta(1)
1931
>>> string_to_delta('1w')
1932
datetime.timedelta(7)
1933
>>> string_to_delta('5m 30s')
1934
datetime.timedelta(0, 330)
2879
1935
"""
2880
2881
try:
2882
return rfc3339_duration_to_delta(interval)
2883
except ValueError:
2884
pass
2885
2886
1936
timevalue = datetime.timedelta(0)
2887
1937
for s in interval.split():
2888
1938
try:
2889
suffix = s[-1]
1939
suffix = unicode(s[-1])
2890
1940
value = int(s[:-1])
2891
1941
if suffix == "d":
2892
1942
delta = datetime.timedelta(value)
2899
1949
elif suffix == "w":
2900
1950
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2901
1951
else:
2902
raise ValueError("Unknown suffix {!r}".format(suffix))
2903
except IndexError as e:
1952
raise ValueError("Unknown suffix %r" % suffix)
1953
except (ValueError, IndexError) as e:
2904
1954
raise ValueError(*(e.args))
2905
1955
timevalue += delta
2906
1956
return timevalue
2907
1957
2908
1958
2909
def daemon(nochdir=False, noclose=False):
1959
def daemon(nochdir = False, noclose = False):
2910
1960
"""See daemon(3). Standard BSD Unix function.
2911
1961
2912
1962
This should really exist as os.daemon, but it doesn't (yet)."""
2913
1963
if os.fork():
2914
1964
sys.exit()
2919
1969
sys.exit()
2920
1970
if not noclose:
2921
1971
# Close all standard open file descriptors
2922
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1972
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2923
1973
if not stat.S_ISCHR(os.fstat(null).st_mode):
2924
1974
raise OSError(errno.ENODEV,
2925
"{} not a character device"
2926
.format(os.devnull))
1975
"%s not a character device"
1976
% os.path.devnull)
2927
1977
os.dup2(null, sys.stdin.fileno())
2928
1978
os.dup2(null, sys.stdout.fileno())
2929
1979
os.dup2(null, sys.stderr.fileno())
2932
1982
2933
1983
2934
1984
def main():
2935
1985
2936
1986
##################################################################
2937
1987
# Parsing of options, both command line and config file
2938
1988
2939
1989
parser = argparse.ArgumentParser()
2940
1990
parser.add_argument("-v", "--version", action="version",
2941
version="%(prog)s {}".format(version),
1991
version = "%%(prog)s %s" % version,
2942
1992
help="show version number and exit")
2943
1993
parser.add_argument("-i", "--interface", metavar="IF",
2944
1994
help="Bind to interface IF")
2950
2000
help="Run self-test")
2951
2001
parser.add_argument("--debug", action="store_true",
2952
2002
help="Debug mode; run in foreground and log"
2953
" to terminal", default=None)
2003
" to terminal")
2954
2004
parser.add_argument("--debuglevel", metavar="LEVEL",
2955
2005
help="Debug level for stdout output")
2956
2006
parser.add_argument("--priority", help="GnuTLS"
2963
2013
" files")
2964
2014
parser.add_argument("--no-dbus", action="store_false",
2965
2015
dest="use_dbus", help="Do not provide D-Bus"
2966
" system bus interface", default=None)
2016
" system bus interface")
2967
2017
parser.add_argument("--no-ipv6", action="store_false",
2968
dest="use_ipv6", help="Do not use IPv6",
2969
default=None)
2018
dest="use_ipv6", help="Do not use IPv6")
2970
2019
parser.add_argument("--no-restore", action="store_false",
2971
2020
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")
2021
" state")
2976
2022
parser.add_argument("--statedir", metavar="DIR",
2977
2023
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
2024
2984
2025
options = parser.parse_args()
2985
2026
2027
if options.check:
2028
import doctest
2029
doctest.testmod()
2030
sys.exit()
2031
2986
2032
# Default values for config file for server-global settings
2987
if gnutls.has_rawpk:
2988
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2989
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2990
else:
2991
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2992
":+SIGN-DSA-SHA256")
2993
server_defaults = {"interface": "",
2994
"address": "",
2995
"port": "",
2996
"debug": "False",
2997
"priority": priority,
2998
"servicename": "Mandos",
2999
"use_dbus": "True",
3000
"use_ipv6": "True",
3001
"debuglevel": "",
3002
"restore": "True",
3003
"socket": "",
3004
"statedir": "/var/lib/mandos",
3005
"foreground": "False",
3006
"zeroconf": "True",
3007
}
3008
del priority
3009
2033
server_defaults = { "interface": "",
2034
"address": "",
2035
"port": "",
2036
"debug": "False",
2037
"priority":
2038
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2039
"servicename": "Mandos",
2040
"use_dbus": "True",
2041
"use_ipv6": "True",
2042
"debuglevel": "",
2043
"restore": "True",
2044
"statedir": "/var/lib/mandos"
2045
}
2046
3010
2047
# Parse config file for server-global settings
3011
server_config = configparser.ConfigParser(server_defaults)
2048
server_config = configparser.SafeConfigParser(server_defaults)
3012
2049
del server_defaults
3013
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3014
# Convert the ConfigParser object to a dict
2050
server_config.read(os.path.join(options.configdir,
2051
"mandos.conf"))
2052
# Convert the SafeConfigParser object to a dict
3015
2053
server_settings = server_config.defaults()
3016
2054
# Use the appropriate methods on the non-string config options
3017
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3018
"foreground", "zeroconf"):
2055
for option in ("debug", "use_dbus", "use_ipv6"):
3019
2056
server_settings[option] = server_config.getboolean("DEFAULT",
3020
2057
option)
3021
2058
if server_settings["port"]:
3022
2059
server_settings["port"] = server_config.getint("DEFAULT",
3023
2060
"port")
3024
if server_settings["socket"]:
3025
server_settings["socket"] = server_config.getint("DEFAULT",
3026
"socket")
3027
# Later, stdin will, and stdout and stderr might, be dup'ed
3028
# over with an opened os.devnull. But we don't want this to
3029
# happen with a supplied network socket.
3030
if 0 <= server_settings["socket"] <= 2:
3031
server_settings["socket"] = os.dup(server_settings
3032
["socket"])
3033
2061
del server_config
3034
2062
3035
2063
# Override the settings from the config file with command line
3036
2064
# options, if set.
3037
2065
for option in ("interface", "address", "port", "debug",
3038
"priority", "servicename", "configdir", "use_dbus",
3039
"use_ipv6", "debuglevel", "restore", "statedir",
3040
"socket", "foreground", "zeroconf"):
2066
"priority", "servicename", "configdir",
2067
"use_dbus", "use_ipv6", "debuglevel", "restore",
2068
"statedir"):
3041
2069
value = getattr(options, option)
3042
2070
if value is not None:
3043
2071
server_settings[option] = value
3044
2072
del options
3045
2073
# Force all strings to be unicode
3046
2074
for option in server_settings.keys():
3047
if isinstance(server_settings[option], bytes):
3048
server_settings[option] = (server_settings[option]
3049
.decode("utf-8"))
3050
# Force all boolean options to be boolean
3051
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3052
"foreground", "zeroconf"):
3053
server_settings[option] = bool(server_settings[option])
3054
# Debug implies foreground
3055
if server_settings["debug"]:
3056
server_settings["foreground"] = True
2075
if type(server_settings[option]) is str:
2076
server_settings[option] = unicode(server_settings[option])
3057
2077
# Now we have our good server settings in "server_settings"
3058
2078
3059
2079
##################################################################
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
2080
3066
2081
# For convenience
3067
2082
debug = server_settings["debug"]
3068
2083
debuglevel = server_settings["debuglevel"]
3070
2085
use_ipv6 = server_settings["use_ipv6"]
3071
2086
stored_state_path = os.path.join(server_settings["statedir"],
3072
2087
stored_state_file)
3073
foreground = server_settings["foreground"]
3074
zeroconf = server_settings["zeroconf"]
3075
2088
3076
2089
if debug:
3077
2090
initlogger(debug, logging.DEBUG)
3078
2091
else:
3081
2094
else:
3082
2095
level = getattr(logging, debuglevel.upper())
3083
2096
initlogger(debug, level)
3084
2097
3085
2098
if server_settings["servicename"] != "Mandos":
3086
syslogger.setFormatter(
3087
logging.Formatter('Mandos ({}) [%(process)d]:'
3088
' %(levelname)s: %(message)s'.format(
3089
server_settings["servicename"])))
3090
2099
syslogger.setFormatter(logging.Formatter
2100
('Mandos (%s) [%%(process)d]:'
2101
' %%(levelname)s: %%(message)s'
2102
% server_settings["servicename"]))
2103
3091
2104
# Parse config file with clients
3092
client_config = configparser.ConfigParser(Client.client_defaults)
2105
client_config = configparser.SafeConfigParser(Client
2106
.client_defaults)
3093
2107
client_config.read(os.path.join(server_settings["configdir"],
3094
2108
"clients.conf"))
3095
2109
3096
2110
global mandos_dbus_service
3097
2111
mandos_dbus_service = None
3098
3099
socketfd = None
3100
if server_settings["socket"] != "":
3101
socketfd = server_settings["socket"]
3102
tcp_server = MandosServer(
3103
(server_settings["address"], server_settings["port"]),
3104
ClientHandler,
3105
interface=(server_settings["interface"] or None),
3106
use_ipv6=use_ipv6,
3107
gnutls_priority=server_settings["priority"],
3108
use_dbus=use_dbus,
3109
socketfd=socketfd)
3110
if not foreground:
3111
pidfilename = "/run/mandos.pid"
3112
if not os.path.isdir("/run/."):
3113
pidfilename = "/var/run/mandos.pid"
3114
pidfile = None
3115
try:
3116
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3117
except IOError as e:
3118
logger.error("Could not open file %r", pidfilename,
3119
exc_info=e)
3120
3121
for name, group in (("_mandos", "_mandos"),
3122
("mandos", "mandos"),
3123
("nobody", "nogroup")):
3124
try:
3125
uid = pwd.getpwnam(name).pw_uid
3126
gid = pwd.getpwnam(group).pw_gid
3127
break
2112
2113
tcp_server = MandosServer((server_settings["address"],
2114
server_settings["port"]),
2115
ClientHandler,
2116
interface=(server_settings["interface"]
2117
or None),
2118
use_ipv6=use_ipv6,
2119
gnutls_priority=
2120
server_settings["priority"],
2121
use_dbus=use_dbus)
2122
if not debug:
2123
pidfilename = "/var/run/mandos.pid"
2124
try:
2125
pidfile = open(pidfilename, "w")
2126
except IOError:
2127
logger.error("Could not open file %r", pidfilename)
2128
2129
try:
2130
uid = pwd.getpwnam("_mandos").pw_uid
2131
gid = pwd.getpwnam("_mandos").pw_gid
2132
except KeyError:
2133
try:
2134
uid = pwd.getpwnam("mandos").pw_uid
2135
gid = pwd.getpwnam("mandos").pw_gid
3128
2136
except KeyError:
3129
continue
3130
else:
3131
uid = 65534
3132
gid = 65534
2137
try:
2138
uid = pwd.getpwnam("nobody").pw_uid
2139
gid = pwd.getpwnam("nobody").pw_gid
2140
except KeyError:
2141
uid = 65534
2142
gid = 65534
3133
2143
try:
3134
2144
os.setgid(gid)
3135
2145
os.setuid(uid)
3136
if debug:
3137
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3138
gid))
3139
2146
except OSError as error:
3140
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3141
.format(uid, gid, os.strerror(error.errno)))
3142
if error.errno != errno.EPERM:
3143
raise
3144
2147
if error[0] != errno.EPERM:
2148
raise error
2149
3145
2150
if debug:
3146
2151
# Enable all possible GnuTLS debugging
3147
2152
3148
2153
# "Use a log level over 10 to enable all debugging options."
3149
2154
# - GnuTLS manual
3150
gnutls.global_set_log_level(11)
3151
3152
@gnutls.log_func
2155
gnutls.library.functions.gnutls_global_set_log_level(11)
2156
2157
@gnutls.library.types.gnutls_log_func
3153
2158
def debug_gnutls(level, string):
3154
2159
logger.debug("GnuTLS: %s", string[:-1])
3155
3156
gnutls.global_set_log_function(debug_gnutls)
3157
2160
2161
(gnutls.library.functions
2162
.gnutls_global_set_log_function(debug_gnutls))
2163
3158
2164
# Redirect stdin so all checkers get /dev/null
3159
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2165
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3160
2166
os.dup2(null, sys.stdin.fileno())
3161
2167
if null > 2:
3162
2168
os.close(null)
3163
2169
3164
2170
# Need to fork before connecting to D-Bus
3165
if not foreground:
2171
if not debug:
3166
2172
# Close all input and output, do double fork, etc.
3167
2173
daemon()
3168
3169
if gi.version_info < (3, 10, 2):
3170
# multiprocessing will use threads, so before we use GLib we
3171
# need to inform GLib that threads will be used.
3172
GLib.threads_init()
3173
2174
2175
gobject.threads_init()
2176
3174
2177
global main_loop
3175
2178
# From the Avahi example code
3176
DBusGMainLoop(set_as_default=True)
3177
main_loop = GLib.MainLoop()
2179
DBusGMainLoop(set_as_default=True )
2180
main_loop = gobject.MainLoop()
3178
2181
bus = dbus.SystemBus()
3179
2182
# End of Avahi example code
3180
2183
if use_dbus:
3181
2184
try:
3182
2185
bus_name = dbus.service.BusName("se.recompile.Mandos",
3183
bus,
3184
do_not_queue=True)
3185
old_bus_name = dbus.service.BusName(
3186
"se.bsnet.fukt.Mandos", bus,
3187
do_not_queue=True)
3188
except dbus.exceptions.DBusException as e:
3189
logger.error("Disabling D-Bus:", exc_info=e)
2186
bus, do_not_queue=True)
2187
old_bus_name = (dbus.service.BusName
2188
("se.bsnet.fukt.Mandos", bus,
2189
do_not_queue=True))
2190
except dbus.exceptions.NameExistsException as e:
2191
logger.error(unicode(e) + ", disabling D-Bus")
3190
2192
use_dbus = False
3191
2193
server_settings["use_dbus"] = False
3192
2194
tcp_server.use_dbus = False
3193
if zeroconf:
3194
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3195
service = AvahiServiceToSyslog(
3196
name=server_settings["servicename"],
3197
servicetype="_mandos._tcp",
3198
protocol=protocol,
3199
bus=bus)
3200
if server_settings["interface"]:
3201
service.interface = if_nametoindex(
3202
server_settings["interface"].encode("utf-8"))
3203
2195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2196
service = AvahiServiceToSyslog(name =
2197
server_settings["servicename"],
2198
servicetype = "_mandos._tcp",
2199
protocol = protocol, bus = bus)
2200
if server_settings["interface"]:
2201
service.interface = (if_nametoindex
2202
(str(server_settings["interface"])))
2203
3204
2204
global multiprocessing_manager
3205
2205
multiprocessing_manager = multiprocessing.Manager()
3206
2206
3207
2207
client_class = Client
3208
2208
if use_dbus:
3209
client_class = functools.partial(ClientDBus, bus=bus)
3210
2209
client_class = functools.partial(ClientDBusTransitional,
2210
bus = bus)
2211
3211
2212
client_settings = Client.config_parser(client_config)
3212
2213
old_client_settings = {}
3213
2214
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
2215
3223
2216
# Get client data and settings from last running state.
3224
2217
if server_settings["restore"]:
3225
2218
try:
3226
2219
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"))
2220
clients_data, old_client_settings = (pickle.load
2221
(stored_state))
3277
2222
os.remove(stored_state_path)
3278
2223
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)
2224
logger.warning("Could not load persistent state: {0}"
2225
.format(e))
2226
if e.errno != errno.ENOENT:
3285
2227
raise
3286
2228
except EOFError as e:
3287
2229
logger.warning("Could not load persistent state: "
3288
"EOFError:",
3289
exc_info=e)
3290
2230
"EOFError: {0}".format(e))
2231
3291
2232
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
2233
for client_name, client in clients_data.iteritems():
3297
2234
# Decide which value to use after restoring saved state.
3298
2235
# We have three different values: Old config file,
3299
2236
# new config file, and saved state.
3304
2241
# For each value in new config, check if it
3305
2242
# differs from the old config value (Except for
3306
2243
# the "secret" attribute)
3307
if (name != "secret"
3308
and (value !=
3309
old_client_settings[client_name][name])):
2244
if (name != "secret" and
2245
value != old_client_settings[client_name]
2246
[name]):
3310
2247
client[name] = value
3311
2248
except KeyError:
3312
2249
pass
3313
2250
3314
2251
# 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.
2252
# enabled if its last checker was successful. Clients
2253
# whose checker failed before we stored its state is
2254
# assumed to have failed all checkers during downtime.
3319
2255
if client["enabled"]:
3320
2256
if datetime.datetime.utcnow() >= client["expires"]:
3321
2257
if not client["last_checked_ok"]:
3322
2258
logger.warning(
3323
"disabling client {} - Client never "
3324
"performed a successful checker".format(
3325
client_name))
2259
"disabling client {0} - Client never "
2260
"performed a successfull checker"
2261
.format(client["name"]))
3326
2262
client["enabled"] = False
3327
2263
elif client["last_checker_status"] != 0:
3328
2264
logger.warning(
3329
"disabling client {} - Client last"
3330
" checker failed with error code"
3331
" {}".format(
3332
client_name,
3333
client["last_checker_status"]))
2265
"disabling client {0} - Client "
2266
"last checker failed with error code {1}"
2267
.format(client["name"],
2268
client["last_checker_status"]))
3334
2269
client["enabled"] = False
3335
2270
else:
3336
client["expires"] = (
3337
datetime.datetime.utcnow()
3338
+ client["timeout"])
2271
client["expires"] = (datetime.datetime
2272
.utcnow()
2273
+ client["timeout"])
3339
2274
logger.debug("Last checker succeeded,"
3340
" keeping {} enabled".format(
3341
client_name))
2275
" keeping {0} enabled"
2276
.format(client["name"]))
3342
2277
try:
3343
client["secret"] = pgp.decrypt(
3344
client["encrypted_secret"],
3345
client_settings[client_name]["secret"])
2278
client["secret"] = (
2279
pgp.decrypt(client["encrypted_secret"],
2280
client_settings[client_name]
2281
["secret"]))
3346
2282
except PGPError:
3347
2283
# 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"])
2284
logger.debug("Failed to decrypt {0} old secret"
2285
.format(client_name))
2286
client["secret"] = (
2287
client_settings[client_name]["secret"])
3352
2288
2289
3353
2290
# Add/remove clients based on new changes made to config
3354
2291
for client_name in (set(old_client_settings)
3355
2292
- set(client_settings)):
3358
2295
- set(old_client_settings)):
3359
2296
clients_data[client_name] = client_settings[client_name]
3360
2297
3361
# Create all client objects
3362
for client_name, client in clients_data.items():
2298
# Create clients all clients
2299
for client_name, client in clients_data.iteritems():
3363
2300
tcp_server.clients[client_name] = client_class(
3364
name=client_name,
3365
settings=client,
3366
server_settings=server_settings)
3367
2301
name = client_name, settings = client)
2302
3368
2303
if not tcp_server.clients:
3369
2304
logger.warning("No clients defined")
3370
3371
if not foreground:
3372
if pidfile is not None:
3373
pid = os.getpid()
3374
try:
3375
with pidfile:
3376
print(pid, file=pidfile)
3377
except IOError:
3378
logger.error("Could not write to file %r with PID %d",
3379
pidfilename, pid)
3380
del pidfile
2305
2306
if not debug:
2307
try:
2308
with pidfile:
2309
pid = os.getpid()
2310
pidfile.write(str(pid) + "\n".encode("utf-8"))
2311
del pidfile
2312
except IOError:
2313
logger.error("Could not write to file %r with PID %d",
2314
pidfilename, pid)
2315
except NameError:
2316
# "pidfile" was never created
2317
pass
3381
2318
del pidfilename
3382
3383
for termsig in (signal.SIGHUP, signal.SIGTERM):
3384
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3385
lambda: main_loop.quit() and False)
3386
2319
signal.signal(signal.SIGINT, signal.SIG_IGN)
2320
2321
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2322
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2323
3387
2324
if use_dbus:
3388
3389
@alternate_dbus_interfaces(
3390
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3391
class MandosDBusService(DBusObjectWithObjectManager):
2325
class MandosDBusService(dbus.service.Object):
3392
2326
"""A D-Bus proxy object"""
3393
3394
2327
def __init__(self):
3395
2328
dbus.service.Object.__init__(self, bus, "/")
3396
3397
2329
_interface = "se.recompile.Mandos"
3398
2330
3399
2331
@dbus.service.signal(_interface, signature="o")
3400
2332
def ClientAdded(self, objpath):
3401
2333
"D-Bus signal"
3402
2334
pass
3403
2335
3404
2336
@dbus.service.signal(_interface, signature="ss")
3405
def ClientNotFound(self, key_id, address):
2337
def ClientNotFound(self, fingerprint, address):
3406
2338
"D-Bus signal"
3407
2339
pass
3408
3409
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3410
"true"})
2340
3411
2341
@dbus.service.signal(_interface, signature="os")
3412
2342
def ClientRemoved(self, objpath, name):
3413
2343
"D-Bus signal"
3414
2344
pass
3415
3416
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3417
"true"})
2345
3418
2346
@dbus.service.method(_interface, out_signature="ao")
3419
2347
def GetAllClients(self):
3420
2348
"D-Bus method"
3421
return dbus.Array(c.dbus_object_path for c in
3422
tcp_server.clients.values())
3423
3424
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3425
"true"})
2349
return dbus.Array(c.dbus_object_path
2350
for c in
2351
tcp_server.clients.itervalues())
2352
3426
2353
@dbus.service.method(_interface,
3427
2354
out_signature="a{oa{sv}}")
3428
2355
def GetAllClientsWithProperties(self):
3429
2356
"D-Bus method"
3430
2357
return dbus.Dictionary(
3431
{c.dbus_object_path: c.GetAll(
3432
"se.recompile.Mandos.Client")
3433
for c in tcp_server.clients.values()},
2358
((c.dbus_object_path, c.GetAll(""))
2359
for c in tcp_server.clients.itervalues()),
3434
2360
signature="oa{sv}")
3435
2361
3436
2362
@dbus.service.method(_interface, in_signature="o")
3437
2363
def RemoveClient(self, object_path):
3438
2364
"D-Bus method"
3439
for c in tcp_server.clients.values():
2365
for c in tcp_server.clients.itervalues():
3440
2366
if c.dbus_object_path == object_path:
3441
2367
del tcp_server.clients[c.name]
3442
2368
c.remove_from_connection()
3443
# Don't signal the disabling
2369
# Don't signal anything except ClientRemoved
3444
2370
c.disable(quiet=True)
3445
# Emit D-Bus signal for removal
3446
self.client_removed_signal(c)
2371
# Emit D-Bus signal
2372
self.ClientRemoved(object_path, c.name)
3447
2373
return
3448
2374
raise KeyError(object_path)
3449
2375
3450
2376
del _interface
3451
3452
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3453
out_signature="a{oa{sa{sv}}}")
3454
def GetManagedObjects(self):
3455
"""D-Bus method"""
3456
return dbus.Dictionary(
3457
{client.dbus_object_path:
3458
dbus.Dictionary(
3459
{interface: client.GetAll(interface)
3460
for interface in
3461
client._get_all_interface_names()})
3462
for client in tcp_server.clients.values()})
3463
3464
def client_added_signal(self, client):
3465
"""Send the new standard signal and the old signal"""
3466
if use_dbus:
3467
# New standard signal
3468
self.InterfacesAdded(
3469
client.dbus_object_path,
3470
dbus.Dictionary(
3471
{interface: client.GetAll(interface)
3472
for interface in
3473
client._get_all_interface_names()}))
3474
# Old signal
3475
self.ClientAdded(client.dbus_object_path)
3476
3477
def client_removed_signal(self, client):
3478
"""Send the new standard signal and the old signal"""
3479
if use_dbus:
3480
# New standard signal
3481
self.InterfacesRemoved(
3482
client.dbus_object_path,
3483
client._get_all_interface_names())
3484
# Old signal
3485
self.ClientRemoved(client.dbus_object_path,
3486
client.name)
3487
3488
mandos_dbus_service = MandosDBusService()
3489
3490
# Save modules to variables to exempt the modules from being
3491
# unloaded before the function registered with atexit() is run.
3492
mp = multiprocessing
3493
wn = wnull
3494
2377
2378
class MandosDBusServiceTransitional(MandosDBusService):
2379
__metaclass__ = AlternateDBusNamesMetaclass
2380
mandos_dbus_service = MandosDBusServiceTransitional()
2381
3495
2382
def cleanup():
3496
2383
"Cleanup function; run on exit"
3497
if zeroconf:
3498
service.cleanup()
3499
3500
mp.active_children()
3501
wn.close()
2384
service.cleanup()
2385
2386
multiprocessing.active_children()
3502
2387
if not (tcp_server.clients or client_settings):
3503
2388
return
3504
2389
3505
2390
# Store client before exiting. Secrets are encrypted with key
3506
2391
# based on what config file has. If config file is
3507
2392
# removed/edited, old secret will thus be unrecovable.
3508
2393
clients = {}
3509
2394
with PGPEngine() as pgp:
3510
for client in tcp_server.clients.values():
2395
for client in tcp_server.clients.itervalues():
3511
2396
key = client_settings[client.name]["secret"]
3512
2397
client.encrypted_secret = pgp.encrypt(client.secret,
3513
2398
key)
3514
2399
client_dict = {}
3515
2400
3516
2401
# A list of attributes that can not be pickled
3517
2402
# + secret.
3518
exclude = {"bus", "changedstate", "secret",
3519
"checker", "server_settings"}
3520
for name, typ in inspect.getmembers(dbus.service
3521
.Object):
2403
exclude = set(("bus", "changedstate", "secret",
2404
"checker"))
2405
for name, typ in (inspect.getmembers
2406
(dbus.service.Object)):
3522
2407
exclude.add(name)
3523
2408
3524
2409
client_dict["encrypted_secret"] = (client
3525
2410
.encrypted_secret)
3526
2411
for attr in client.client_structure:
3527
2412
if attr not in exclude:
3528
2413
client_dict[attr] = getattr(client, attr)
3529
2414
3530
2415
clients[client.name] = client_dict
3531
2416
del client_settings[client.name]["secret"]
3532
2417
3533
2418
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
2419
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2420
prefix="clients-",
2421
dir=os.path.dirname
2422
(stored_state_path))
2423
with os.fdopen(tempfd, "wb") as stored_state:
2424
pickle.dump((clients, client_settings), stored_state)
3543
2425
os.rename(tempname, stored_state_path)
3544
2426
except (IOError, OSError) as e:
2427
logger.warning("Could not save persistent state: {0}"
2428
.format(e))
3545
2429
if not debug:
3546
2430
try:
3547
2431
os.remove(tempname)
3548
2432
except NameError:
3549
2433
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
2434
if e.errno not in set((errno.ENOENT, errno.EACCES,
2435
errno.EEXIST)):
2436
raise e
2437
3558
2438
# Delete all clients, and settings from config
3559
2439
while tcp_server.clients:
3560
2440
name, client = tcp_server.clients.popitem()
3561
2441
if use_dbus:
3562
2442
client.remove_from_connection()
3563
# Don't signal the disabling
2443
# Don't signal anything except ClientRemoved
3564
2444
client.disable(quiet=True)
3565
# Emit D-Bus signal for removal
3566
2445
if use_dbus:
3567
mandos_dbus_service.client_removed_signal(client)
2446
# Emit D-Bus signal
2447
mandos_dbus_service.ClientRemoved(client
2448
.dbus_object_path,
2449
client.name)
3568
2450
client_settings.clear()
3569
2451
3570
2452
atexit.register(cleanup)
3571
3572
for client in tcp_server.clients.values():
2453
2454
for client in tcp_server.clients.itervalues():
3573
2455
if use_dbus:
3574
# Emit D-Bus signal for adding
3575
mandos_dbus_service.client_added_signal(client)
2456
# Emit D-Bus signal
2457
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3576
2458
# Need to initiate checking of clients
3577
2459
if client.enabled:
3578
2460
client.init_checker()
3579
2461
3580
2462
tcp_server.enable()
3581
2463
tcp_server.server_activate()
3582
2464
3583
2465
# Find out what port we got
3584
if zeroconf:
3585
service.port = tcp_server.socket.getsockname()[1]
2466
service.port = tcp_server.socket.getsockname()[1]
3586
2467
if use_ipv6:
3587
2468
logger.info("Now listening on address %r, port %d,"
3588
" flowinfo %d, scope_id %d",
3589
*tcp_server.socket.getsockname())
2469
" flowinfo %d, scope_id %d"
2470
% tcp_server.socket.getsockname())
3590
2471
else: # IPv4
3591
logger.info("Now listening on address %r, port %d",
3592
*tcp_server.socket.getsockname())
3593
3594
# service.interface = tcp_server.socket.getsockname()[3]
3595
2472
logger.info("Now listening on address %r, port %d"
2473
% tcp_server.socket.getsockname())
2474
2475
#service.interface = tcp_server.socket.getsockname()[3]
2476
3596
2477
try:
3597
if zeroconf:
3598
# From the Avahi example code
3599
try:
3600
service.activate()
3601
except dbus.exceptions.DBusException as error:
3602
logger.critical("D-Bus Exception", exc_info=error)
3603
cleanup()
3604
sys.exit(1)
3605
# End of Avahi example code
3606
3607
GLib.io_add_watch(
3608
GLib.IOChannel.unix_new(tcp_server.fileno()),
3609
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3610
lambda *args, **kwargs: (tcp_server.handle_request
3611
(*args[2:], **kwargs) or True))
3612
2478
# From the Avahi example code
2479
try:
2480
service.activate()
2481
except dbus.exceptions.DBusException as error:
2482
logger.critical("DBusException: %s", error)
2483
cleanup()
2484
sys.exit(1)
2485
# End of Avahi example code
2486
2487
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2488
lambda *args, **kwargs:
2489
(tcp_server.handle_request
2490
(*args[2:], **kwargs) or True))
2491
3613
2492
logger.debug("Starting main loop")
3614
2493
main_loop.run()
3615
2494
except AvahiError as error:
3616
logger.critical("Avahi Error", exc_info=error)
2495
logger.critical("AvahiError: %s", error)
3617
2496
cleanup()
3618
2497
sys.exit(1)
3619
2498
except KeyboardInterrupt:
3624
2503
# Must run before the D-Bus bus name gets deregistered
3625
2504
cleanup()
3626
2505
3627
3628
def should_only_run_tests():
3629
parser = argparse.ArgumentParser(add_help=False)
3630
parser.add_argument("--check", action='store_true')
3631
args, unknown_args = parser.parse_known_args()
3632
run_tests = args.check
3633
if run_tests:
3634
# Remove --check argument from sys.argv
3635
sys.argv[1:] = unknown_args
3636
return run_tests
3637
3638
# Add all tests from doctest strings
3639
def load_tests(loader, tests, none):
3640
import doctest
3641
tests.addTests(doctest.DocTestSuite())
3642
return tests
3643
3644
2506
if __name__ == '__main__':
3645
try:
3646
if should_only_run_tests():
3647
# Call using ./mandos --check [--verbose]
3648
unittest.main()
3649
else:
3650
main()
3651
finally:
3652
logging.shutdown()
2507
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0