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- Committer: Teddy Hogeborn
- Date: 2011-11-29 18:19:31 UTC
- mto: (237.15.13 mandos-client-network-hooks)
- mto: This revision was merged to the branch mainline in revision 290.
- Revision ID: teddy@recompile.se-20111129181931-vctlij1omtu1qbnx
* initramfs-tools-hook: Set DEVICE for network hooks.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
66
82
67
import dbus
83
68
import dbus.service
84
import gi
85
from gi.repository import GLib
69
import gobject
70
import avahi
86
71
from dbus.mainloop.glib import DBusGMainLoop
87
72
import ctypes
88
73
import ctypes.util
89
74
import xml.dom.minidom
90
75
import inspect
91
76
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:
101
77
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
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
105
79
except AttributeError:
106
80
try:
107
# This is where SO_BINDTODEVICE was up to and including Python
108
# 2.6, and also 3.2:
109
81
from IN import SO_BINDTODEVICE
110
82
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"
132
stored_state_file = "clients.pickle"
133
134
logger = logging.getLogger()
135
logging.captureWarnings(True) # Show warnings via the logging system
136
syslogger = None
137
138
try:
139
if_nametoindex = ctypes.cdll.LoadLibrary(
140
ctypes.util.find_library("c")).if_nametoindex
141
except (OSError, AttributeError):
142
143
def if_nametoindex(interface):
144
"Get an interface index the hard way, i.e. using fcntl()"
145
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
146
with contextlib.closing(socket.socket()) as s:
147
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
148
struct.pack(b"16s16x", interface))
149
interface_index = struct.unpack("I", ifreq[16:20])[0]
150
return interface_index
151
152
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
def initlogger(debug, level=logging.WARNING):
170
"""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"))
176
syslogger.setFormatter(logging.Formatter
177
('Mandos [%(process)d]: %(levelname)s:'
178
' %(message)s'))
179
logger.addHandler(syslogger)
180
181
if debug:
182
console = logging.StreamHandler()
183
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
184
' [%(process)d]:'
185
' %(levelname)s:'
186
' %(message)s'))
187
logger.addHandler(console)
188
logger.setLevel(level)
189
190
191
class PGPError(Exception):
192
"""Exception if encryption/decryption fails"""
193
pass
194
195
196
class PGPEngine:
197
"""A simple class for OpenPGP symmetric encryption & decryption"""
198
199
def __init__(self):
200
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
220
def __enter__(self):
221
return self
222
223
def __exit__(self, exc_type, exc_value, traceback):
224
self._cleanup()
225
return False
226
227
def __del__(self):
228
self._cleanup()
229
230
def _cleanup(self):
231
if self.tempdir is not None:
232
# Delete contents of tempdir
233
for root, dirs, files in os.walk(self.tempdir,
234
topdown=False):
235
for filename in files:
236
os.remove(os.path.join(root, filename))
237
for dirname in dirs:
238
os.rmdir(os.path.join(root, dirname))
239
# Remove tempdir
240
os.rmdir(self.tempdir)
241
self.tempdir = None
242
243
def password_encode(self, password):
244
# Passphrase can not be empty and can not contain newlines or
245
# 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
254
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)
270
return ciphertext
271
272
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)
288
return decrypted_plaintext
289
290
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
83
SO_BINDTODEVICE = None
84
85
86
version = "1.4.1"
87
88
#logger = logging.getLogger('mandos')
89
logger = logging.Logger('mandos')
90
syslogger = (logging.handlers.SysLogHandler
91
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
92
address = str("/dev/log")))
93
syslogger.setFormatter(logging.Formatter
94
('Mandos [%(process)d]: %(levelname)s:'
95
' %(message)s'))
96
logger.addHandler(syslogger)
97
98
console = logging.StreamHandler()
99
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
316
103
317
104
class AvahiError(Exception):
318
105
def __init__(self, value, *args, **kwargs):
319
106
self.value = value
320
return super(AvahiError, self).__init__(value, *args,
321
**kwargs)
322
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
323
110
324
111
class AvahiServiceError(AvahiError):
325
112
pass
326
113
327
328
114
class AvahiGroupError(AvahiError):
329
115
pass
330
116
331
117
332
class AvahiService:
118
class AvahiService(object):
333
119
"""An Avahi (Zeroconf) service.
334
120
335
121
Attributes:
336
122
interface: integer; avahi.IF_UNSPEC or an interface index.
337
123
Used to optionally bind to the specified interface.
338
124
name: string; Example: 'Mandos'
339
125
type: string; Example: '_mandos._tcp'.
340
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
341
127
port: integer; what port to announce
342
128
TXT: list of strings; TXT record for the service
343
129
domain: string; Domain to publish on, default to .local if empty.
349
135
server: D-Bus Server
350
136
bus: dbus.SystemBus()
351
137
"""
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):
138
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
139
servicetype = None, port = None, TXT = None,
140
domain = "", host = "", max_renames = 32768,
141
protocol = avahi.PROTO_UNSPEC, bus = None):
364
142
self.interface = interface
365
143
self.name = name
366
144
self.type = servicetype
375
153
self.server = None
376
154
self.bus = bus
377
155
self.entry_group_state_changed_match = None
378
379
def rename(self, remove=True):
156
def rename(self):
380
157
"""Derived from the Avahi example code"""
381
158
if self.rename_count >= self.max_renames:
382
159
logger.critical("No suitable Zeroconf service name found"
383
160
" after %i retries, exiting.",
384
161
self.rename_count)
385
162
raise AvahiServiceError("Too many renames")
386
self.name = str(
387
self.server.GetAlternativeServiceName(self.name))
388
self.rename_count += 1
163
self.name = unicode(self.server
164
.GetAlternativeServiceName(self.name))
389
165
logger.info("Changing Zeroconf service name to %r ...",
390
166
self.name)
391
if remove:
392
self.remove()
167
syslogger.setFormatter(logging.Formatter
168
('Mandos (%s) [%%(process)d]:'
169
' %%(levelname)s: %%(message)s'
170
% self.name))
171
self.remove()
393
172
try:
394
173
self.add()
395
174
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
175
logger.critical("DBusException: %s", error)
176
self.cleanup()
177
os._exit(1)
178
self.rename_count += 1
405
179
def remove(self):
406
180
"""Derived from the Avahi example code"""
407
181
if self.entry_group_state_changed_match is not None:
409
183
self.entry_group_state_changed_match = None
410
184
if self.group is not None:
411
185
self.group.Reset()
412
413
186
def add(self):
414
187
"""Derived from the Avahi example code"""
415
188
self.remove()
420
193
avahi.DBUS_INTERFACE_ENTRY_GROUP)
421
194
self.entry_group_state_changed_match = (
422
195
self.group.connect_to_signal(
423
'StateChanged', self.entry_group_state_changed))
196
'StateChanged', self .entry_group_state_changed))
424
197
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
425
198
self.name, self.type)
426
199
self.group.AddService(
432
205
dbus.UInt16(self.port),
433
206
avahi.string_array_to_txt_array(self.TXT))
434
207
self.group.Commit()
435
436
208
def entry_group_state_changed(self, state, error):
437
209
"""Derived from the Avahi example code"""
438
210
logger.debug("Avahi entry group state change: %i", state)
439
211
440
212
if state == avahi.ENTRY_GROUP_ESTABLISHED:
441
213
logger.debug("Zeroconf service established.")
442
214
elif state == avahi.ENTRY_GROUP_COLLISION:
444
216
self.rename()
445
217
elif state == avahi.ENTRY_GROUP_FAILURE:
446
218
logger.critical("Avahi: Error in group state changed %s",
447
str(error))
448
raise AvahiGroupError("State changed: {!s}".format(error))
449
219
unicode(error))
220
raise AvahiGroupError("State changed: %s"
221
% unicode(error))
450
222
def cleanup(self):
451
223
"""Derived from the Avahi example code"""
452
224
if self.group is not None:
453
225
try:
454
226
self.group.Free()
455
227
except (dbus.exceptions.UnknownMethodException,
456
dbus.exceptions.DBusException):
228
dbus.exceptions.DBusException) as e:
457
229
pass
458
230
self.group = None
459
231
self.remove()
460
461
232
def server_state_changed(self, state, error=None):
462
233
"""Derived from the Avahi example code"""
463
234
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
}
235
bad_states = { avahi.SERVER_INVALID:
236
"Zeroconf server invalid",
237
avahi.SERVER_REGISTERING: None,
238
avahi.SERVER_COLLISION:
239
"Zeroconf server name collision",
240
avahi.SERVER_FAILURE:
241
"Zeroconf server failure" }
470
242
if state in bad_states:
471
243
if bad_states[state] is not None:
472
244
if error is None:
475
247
logger.error(bad_states[state] + ": %r", error)
476
248
self.cleanup()
477
249
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)
250
self.add()
490
251
else:
491
252
if error is None:
492
253
logger.debug("Unknown state: %r", state)
493
254
else:
494
255
logger.debug("Unknown state: %r: %r", state, error)
495
496
256
def activate(self):
497
257
"""Derived from the Avahi example code"""
498
258
if self.server is None:
502
262
follow_name_owner_changes=True),
503
263
avahi.DBUS_INTERFACE_SERVER)
504
264
self.server.connect_to_signal("StateChanged",
505
self.server_state_changed)
265
self.server_state_changed)
506
266
self.server_state_changed(self.server.GetState())
507
267
508
268
509
class AvahiServiceToSyslog(AvahiService):
510
def rename(self, *args, **kwargs):
511
"""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)))
516
return ret
517
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:
269
def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
274
275
class Client(object):
832
276
"""A representation of a client host served by this server.
833
277
834
278
Attributes:
835
approved: bool(); 'None' if not yet approved/disapproved
279
_approved: bool(); 'None' if not yet approved/disapproved
836
280
approval_delay: datetime.timedelta(); Time to wait for approval
837
281
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
282
checker: subprocess.Popen(); a running checker process used
283
to see if the client lives.
284
'None' if no process is running.
285
checker_callback_tag: a gobject event source tag, or None
842
286
checker_command: string; External command which is run to check
843
287
if client lives. %() expansions are done at
844
288
runtime with vars(self) as dict, so that for
845
289
instance %(name)s can be used in the command.
846
checker_initiator_tag: a GLib event source tag, or None
290
checker_initiator_tag: a gobject event source tag, or None
847
291
created: datetime.datetime(); (UTC) object creation
848
client_structure: Object describing what attributes a client has
849
and is used for storing the client at exit
850
292
current_checker_command: string; current running checker_command
851
disable_initiator_tag: a GLib event source tag, or None
293
disable_hook: If set, called by disable() as disable_hook(self)
294
disable_initiator_tag: a gobject event source tag, or None
852
295
enabled: bool()
853
296
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
297
uniquely identify the client
857
298
host: string; available for use by the checker command
858
299
interval: datetime.timedelta(); How often to start a new checker
859
300
last_approval_request: datetime.datetime(); (UTC) or None
860
301
last_checked_ok: datetime.datetime(); (UTC) or None
861
last_checker_status: integer between 0 and 255 reflecting exit
862
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
866
last_enabled: datetime.datetime(); (UTC) or None
302
last_enabled: datetime.datetime(); (UTC)
867
303
name: string; from the config file, used in log messages and
868
304
D-Bus identifiers
869
305
secret: bytestring; sent verbatim (over TLS) to client
870
306
timeout: datetime.timedelta(); How long from last_checked_ok
871
307
until this client is disabled
872
extended_timeout: extra long timeout when secret has been sent
308
extended_timeout: extra long timeout when password has been sent
873
309
runtime_expansions: Allowed attributes for runtime expansion.
874
310
expires: datetime.datetime(); time (UTC) when a client will be
875
311
disabled, or None
876
server_settings: The server_settings dict from main()
877
312
"""
878
313
879
314
runtime_expansions = ("approval_delay", "approval_duration",
880
"created", "enabled", "expires", "key_id",
881
"fingerprint", "host", "interval",
882
"last_approval_request", "last_checked_ok",
315
"created", "enabled", "fingerprint",
316
"host", "interval", "last_checked_ok",
883
317
"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
}
895
896
@staticmethod
897
def config_parser(config):
898
"""Construct a new dict of client settings of this form:
899
{ client_name: {setting_name: value, ...}, ...}
900
with exceptions for any special settings as defined above.
901
NOTE: Must be a pure function. Must return the same result
902
value given the same arguments.
903
"""
904
settings = {}
905
for client_name in config.sections():
906
section = dict(config.items(client_name))
907
client = settings[client_name] = {}
908
909
client["host"] = section["host"]
910
# Reformat values from string types to Python types
911
client["approved_by_default"] = config.getboolean(
912
client_name, "approved_by_default")
913
client["enabled"] = config.getboolean(client_name,
914
"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(" ", ""))
921
client["fingerprint"] = (section["fingerprint"].upper()
922
.replace(" ", ""))
923
if "secret" in section:
924
client["secret"] = codecs.decode(section["secret"]
925
.encode("utf-8"),
926
"base64")
927
elif "secfile" in section:
928
with open(os.path.expanduser(os.path.expandvars
929
(section["secfile"])),
930
"rb") as secfile:
931
client["secret"] = secfile.read()
932
else:
933
raise TypeError("No secret or secfile for section {}"
934
.format(section))
935
client["timeout"] = string_to_delta(section["timeout"])
936
client["extended_timeout"] = string_to_delta(
937
section["extended_timeout"])
938
client["interval"] = string_to_delta(section["interval"])
939
client["approval_delay"] = string_to_delta(
940
section["approval_delay"])
941
client["approval_duration"] = string_to_delta(
942
section["approval_duration"])
943
client["checker_command"] = section["checker"]
944
client["last_approval_request"] = None
945
client["last_checked_ok"] = None
946
client["last_checker_status"] = -2
947
948
return settings
949
950
def __init__(self, settings, name=None, server_settings=None):
318
319
def timeout_milliseconds(self):
320
"Return the 'timeout' attribute in milliseconds"
321
return _timedelta_to_milliseconds(self.timeout)
322
323
def extended_timeout_milliseconds(self):
324
"Return the 'extended_timeout' attribute in milliseconds"
325
return _timedelta_to_milliseconds(self.extended_timeout)
326
327
def interval_milliseconds(self):
328
"Return the 'interval' attribute in milliseconds"
329
return _timedelta_to_milliseconds(self.interval)
330
331
def approval_delay_milliseconds(self):
332
return _timedelta_to_milliseconds(self.approval_delay)
333
334
def __init__(self, name = None, disable_hook=None, config=None):
335
"""Note: the 'checker' key in 'config' sets the
336
'checker_command' attribute and *not* the 'checker'
337
attribute."""
951
338
self.name = name
952
if server_settings is None:
953
server_settings = {}
954
self.server_settings = server_settings
955
# adding all client settings
956
for setting, value in settings.items():
957
setattr(self, setting, value)
958
959
if self.enabled:
960
if not hasattr(self, "last_enabled"):
961
self.last_enabled = datetime.datetime.utcnow()
962
if not hasattr(self, "expires"):
963
self.expires = (datetime.datetime.utcnow()
964
+ self.timeout)
965
else:
966
self.last_enabled = None
967
self.expires = None
968
339
if config is None:
340
config = {}
969
341
logger.debug("Creating client %r", self.name)
970
logger.debug(" Key ID: %s", self.key_id)
342
# Uppercase and remove spaces from fingerprint for later
343
# comparison purposes with return value from the fingerprint()
344
# function
345
self.fingerprint = (config["fingerprint"].upper()
346
.replace(" ", ""))
971
347
logger.debug(" Fingerprint: %s", self.fingerprint)
972
self.created = settings.get("created",
973
datetime.datetime.utcnow())
974
975
# attributes specific for this server instance
348
if "secret" in config:
349
self.secret = config["secret"].decode("base64")
350
elif "secfile" in config:
351
with open(os.path.expanduser(os.path.expandvars
352
(config["secfile"])),
353
"rb") as secfile:
354
self.secret = secfile.read()
355
else:
356
raise TypeError("No secret or secfile for client %s"
357
% self.name)
358
self.host = config.get("host", "")
359
self.created = datetime.datetime.utcnow()
360
self.enabled = False
361
self.last_approval_request = None
362
self.last_enabled = None
363
self.last_checked_ok = None
364
self.timeout = string_to_delta(config["timeout"])
365
self.extended_timeout = string_to_delta(config
366
["extended_timeout"])
367
self.interval = string_to_delta(config["interval"])
368
self.disable_hook = disable_hook
976
369
self.checker = None
977
370
self.checker_initiator_tag = None
978
371
self.disable_initiator_tag = None
372
self.expires = None
979
373
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
980
375
self.current_checker_command = None
981
self.approved = None
376
self.last_connect = None
377
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
379
True)
982
380
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()
987
if not attr.startswith("_")]
988
self.client_structure.append("client_structure")
989
990
for name, t in inspect.getmembers(
991
type(self), lambda obj: isinstance(obj, property)):
992
if not name.startswith("_"):
993
self.client_structure.append(name)
994
995
# Send notice to process children that client state has changed
381
self.approval_delay = string_to_delta(
382
config["approval_delay"])
383
self.approval_duration = string_to_delta(
384
config["approval_duration"])
385
self.changedstate = (multiprocessing_manager
386
.Condition(multiprocessing_manager
387
.Lock()))
388
996
389
def send_changedstate(self):
997
with self.changedstate:
998
self.changedstate.notify_all()
999
390
self.changedstate.acquire()
391
self.changedstate.notify_all()
392
self.changedstate.release()
393
1000
394
def enable(self):
1001
395
"""Start this client's checker and timeout hooks"""
1002
396
if getattr(self, "enabled", False):
1003
397
# Already enabled
1004
398
return
399
self.send_changedstate()
400
# Schedule a new checker to be started an 'interval' from now,
401
# and every interval from then on.
402
self.checker_initiator_tag = (gobject.timeout_add
403
(self.interval_milliseconds(),
404
self.start_checker))
405
# Schedule a disable() when 'timeout' has passed
1005
406
self.expires = datetime.datetime.utcnow() + self.timeout
407
self.disable_initiator_tag = (gobject.timeout_add
408
(self.timeout_milliseconds(),
409
self.disable))
1006
410
self.enabled = True
1007
411
self.last_enabled = datetime.datetime.utcnow()
1008
self.init_checker()
1009
self.send_changedstate()
1010
412
# Also start a new checker *right now*.
413
self.start_checker()
414
1011
415
def disable(self, quiet=True):
1012
416
"""Disable this client."""
1013
417
if not getattr(self, "enabled", False):
1014
418
return False
1015
419
if not quiet:
420
self.send_changedstate()
421
if not quiet:
1016
422
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)
423
if getattr(self, "disable_initiator_tag", False):
424
gobject.source_remove(self.disable_initiator_tag)
1019
425
self.disable_initiator_tag = None
1020
426
self.expires = None
1021
if getattr(self, "checker_initiator_tag", None) is not None:
1022
GLib.source_remove(self.checker_initiator_tag)
427
if getattr(self, "checker_initiator_tag", False):
428
gobject.source_remove(self.checker_initiator_tag)
1023
429
self.checker_initiator_tag = None
1024
430
self.stop_checker()
431
if self.disable_hook:
432
self.disable_hook(self)
1025
433
self.enabled = False
1026
if not quiet:
1027
self.send_changedstate()
1028
# Do not run this again if called by a GLib.timeout_add
434
# Do not run this again if called by a gobject.timeout_add
1029
435
return False
1030
436
1031
437
def __del__(self):
438
self.disable_hook = None
1032
439
self.disable()
1033
1034
def init_checker(self):
1035
# Schedule a new checker to be started an 'interval' from now,
1036
# 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)
1042
# Schedule a disable() when 'timeout' has passed
1043
if self.disable_initiator_tag is not None:
1044
GLib.source_remove(self.disable_initiator_tag)
1045
self.disable_initiator_tag = GLib.timeout_add(
1046
int(self.timeout.total_seconds() * 1000), self.disable)
1047
# Also start a new checker *right now*.
1048
self.start_checker()
1049
1050
def checker_callback(self, source, condition, connection,
1051
command):
440
441
def checker_callback(self, pid, condition, command):
1052
442
"""The checker has completed, so take appropriate actions."""
1053
# Read return code from connection (see call_pipe)
1054
returncode = connection.recv()
1055
connection.close()
1056
if self.checker is not None:
1057
self.checker.join()
1058
443
self.checker_callback_tag = None
1059
444
self.checker = None
1060
1061
if returncode >= 0:
1062
self.last_checker_status = returncode
1063
self.last_checker_signal = None
1064
if self.last_checker_status == 0:
445
if os.WIFEXITED(condition):
446
exitstatus = os.WEXITSTATUS(condition)
447
if exitstatus == 0:
1065
448
logger.info("Checker for %(name)s succeeded",
1066
449
vars(self))
1067
450
self.checked_ok()
1068
451
else:
1069
logger.info("Checker for %(name)s failed", vars(self))
452
logger.info("Checker for %(name)s failed",
453
vars(self))
1070
454
else:
1071
self.last_checker_status = -1
1072
self.last_checker_signal = -returncode
1073
455
logger.warning("Checker for %(name)s crashed?",
1074
456
vars(self))
1075
return False
1076
1077
def checked_ok(self):
1078
"""Assert that the client has been seen, alive and well."""
1079
self.last_checked_ok = datetime.datetime.utcnow()
1080
self.last_checker_status = 0
1081
self.last_checker_signal = None
1082
self.bump_timeout()
1083
1084
def bump_timeout(self, timeout=None):
1085
"""Bump up the timeout for this client."""
457
458
def checked_ok(self, timeout=None):
459
"""Bump up the timeout for this client.
460
461
This should only be called when the client has been seen,
462
alive and well.
463
"""
1086
464
if timeout is None:
1087
465
timeout = self.timeout
466
self.last_checked_ok = datetime.datetime.utcnow()
1088
467
if self.disable_initiator_tag is not None:
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = None
468
gobject.source_remove(self.disable_initiator_tag)
1091
469
if getattr(self, "enabled", False):
1092
self.disable_initiator_tag = GLib.timeout_add(
1093
int(timeout.total_seconds() * 1000), self.disable)
470
self.disable_initiator_tag = (gobject.timeout_add
471
(_timedelta_to_milliseconds
472
(timeout), self.disable))
1094
473
self.expires = datetime.datetime.utcnow() + timeout
1095
474
1096
475
def need_approval(self):
1097
476
self.last_approval_request = datetime.datetime.utcnow()
1098
477
1099
478
def start_checker(self):
1100
479
"""Start a new checker subprocess if one is not running.
1101
480
1102
481
If a checker already exists, leave it running and do
1103
482
nothing."""
1104
483
# The reason for not killing a running checker is that if we
1105
# did that, and if a checker (for some reason) started running
1106
# slowly and taking more than 'interval' time, then the client
1107
# would inevitably timeout, since no checker would get a
1108
# chance to run to completion. If we instead leave running
484
# did that, then if a checker (for some reason) started
485
# running slowly and taking more than 'interval' time, the
486
# client would inevitably timeout, since no checker would get
487
# a chance to run to completion. If we instead leave running
1109
488
# checkers alone, the checker would have to take more time
1110
489
# than 'timeout' for the client to be disabled, which is as it
1111
490
# should be.
1112
1113
if self.checker is not None and not self.checker.is_alive():
1114
logger.warning("Checker was not alive; joining")
1115
self.checker.join()
1116
self.checker = None
491
492
# If a checker exists, make sure it is not a zombie
493
try:
494
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
495
except (AttributeError, OSError) as error:
496
if (isinstance(error, OSError)
497
and error.errno != errno.ECHILD):
498
raise error
499
else:
500
if pid:
501
logger.warning("Checker was a zombie")
502
gobject.source_remove(self.checker_callback_tag)
503
self.checker_callback(pid, status,
504
self.current_checker_command)
1117
505
# Start a new checker if needed
1118
506
if self.checker is None:
1119
# Escape attributes for the shell
1120
escaped_attrs = {
1121
attr: re.escape(str(getattr(self, attr)))
1122
for attr in self.runtime_expansions}
1123
507
try:
1124
command = self.checker_command % escaped_attrs
1125
except TypeError as error:
1126
logger.error('Could not format string "%s"',
1127
self.checker_command,
1128
exc_info=error)
1129
return True # Try again later
508
# In case checker_command has exactly one % operator
509
command = self.checker_command % self.host
510
except TypeError:
511
# Escape attributes for the shell
512
escaped_attrs = dict(
513
(attr,
514
re.escape(unicode(str(getattr(self, attr, "")),
515
errors=
516
'replace')))
517
for attr in
518
self.runtime_expansions)
519
520
try:
521
command = self.checker_command % escaped_attrs
522
except TypeError as error:
523
logger.error('Could not format string "%s":'
524
' %s', self.checker_command, error)
525
return True # Try again later
1130
526
self.current_checker_command = command
1131
logger.info("Starting checker %r for %s", command,
1132
self.name)
1133
# We don't need to redirect stdout and stderr, since
1134
# in normal mode, that is already done by daemon(),
1135
# and in debug mode we don't want to. (Stdin is
1136
# always replaced by /dev/null.)
1137
# The exception is when not debugging but nevertheless
1138
# running in the foreground; use the previously
1139
# created wnull.
1140
popen_args = {"close_fds": True,
1141
"shell": True,
1142
"cwd": "/"}
1143
if (not self.server_settings["debug"]
1144
and self.server_settings["foreground"]):
1145
popen_args.update({"stdout": wnull,
1146
"stderr": wnull})
1147
pipe = multiprocessing.Pipe(duplex=False)
1148
self.checker = multiprocessing.Process(
1149
target=call_pipe,
1150
args=(pipe[1], subprocess.call, command),
1151
kwargs=popen_args)
1152
self.checker.start()
1153
self.checker_callback_tag = GLib.io_add_watch(
1154
GLib.IOChannel.unix_new(pipe[0].fileno()),
1155
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1156
self.checker_callback, pipe[0], command)
1157
# Re-run this periodically if run by GLib.timeout_add
527
try:
528
logger.info("Starting checker %r for %s",
529
command, self.name)
530
# We don't need to redirect stdout and stderr, since
531
# in normal mode, that is already done by daemon(),
532
# and in debug mode we don't want to. (Stdin is
533
# always replaced by /dev/null.)
534
self.checker = subprocess.Popen(command,
535
close_fds=True,
536
shell=True, cwd="/")
537
self.checker_callback_tag = (gobject.child_watch_add
538
(self.checker.pid,
539
self.checker_callback,
540
data=command))
541
# The checker may have completed before the gobject
542
# watch was added. Check for this.
543
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
544
if pid:
545
gobject.source_remove(self.checker_callback_tag)
546
self.checker_callback(pid, status, command)
547
except OSError as error:
548
logger.error("Failed to start subprocess: %s",
549
error)
550
# Re-run this periodically if run by gobject.timeout_add
1158
551
return True
1159
552
1160
553
def stop_checker(self):
1161
554
"""Force the checker process, if any, to stop."""
1162
555
if self.checker_callback_tag:
1163
GLib.source_remove(self.checker_callback_tag)
556
gobject.source_remove(self.checker_callback_tag)
1164
557
self.checker_callback_tag = None
1165
558
if getattr(self, "checker", None) is None:
1166
559
return
1167
560
logger.debug("Stopping checker for %(name)s", vars(self))
1168
self.checker.terminate()
561
try:
562
os.kill(self.checker.pid, signal.SIGTERM)
563
#time.sleep(0.5)
564
#if self.checker.poll() is None:
565
# os.kill(self.checker.pid, signal.SIGKILL)
566
except OSError as error:
567
if error.errno != errno.ESRCH: # No such process
568
raise
1169
569
self.checker = None
1170
570
1171
571
1172
def dbus_service_property(dbus_interface,
1173
signature="v",
1174
access="readwrite",
1175
byte_arrays=False):
572
def dbus_service_property(dbus_interface, signature="v",
573
access="readwrite", byte_arrays=False):
1176
574
"""Decorators for marking methods of a DBusObjectWithProperties to
1177
575
become properties on the D-Bus.
1178
576
1179
577
The decorated method will be called with no arguments by "Get"
1180
578
and with one argument by "Set".
1181
579
1182
580
The parameters, where they are supported, are the same as
1183
581
dbus.service.method, except there is only "signature", since the
1184
582
type from Get() and the type sent to Set() is the same.
1187
585
# "Set" method, so we fail early here:
1188
586
if byte_arrays and signature != "ay":
1189
587
raise ValueError("Byte arrays not supported for non-'ay'"
1190
" signature {!r}".format(signature))
1191
588
" signature %r" % signature)
1192
589
def decorator(func):
1193
590
func._dbus_is_property = True
1194
591
func._dbus_interface = dbus_interface
1197
594
func._dbus_name = func.__name__
1198
595
if func._dbus_name.endswith("_dbus_property"):
1199
596
func._dbus_name = func._dbus_name[:-14]
1200
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1201
return func
1202
1203
return decorator
1204
1205
1206
def dbus_interface_annotations(dbus_interface):
1207
"""Decorator for marking functions returning interface annotations
1208
1209
Usage:
1210
1211
@dbus_interface_annotations("org.example.Interface")
1212
def _foo(self): # Function name does not matter
1213
return {"org.freedesktop.DBus.Deprecated": "true",
1214
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1215
"false"}
1216
"""
1217
1218
def decorator(func):
1219
func._dbus_is_interface = True
1220
func._dbus_interface = dbus_interface
1221
func._dbus_name = dbus_interface
1222
return func
1223
1224
return decorator
1225
1226
1227
def dbus_annotations(annotations):
1228
"""Decorator to annotate D-Bus methods, signals or properties
1229
Usage:
1230
1231
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1232
"org.freedesktop.DBus.Property."
1233
"EmitsChangedSignal": "false"})
1234
@dbus_service_property("org.example.Interface", signature="b",
1235
access="r")
1236
def Property_dbus_property(self):
1237
return dbus.Boolean(False)
1238
1239
See also the DBusObjectWithAnnotations class.
1240
"""
1241
1242
def decorator(func):
1243
func._dbus_annotations = annotations
1244
return func
1245
597
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
598
return func
1246
599
return decorator
1247
600
1248
601
1249
602
class DBusPropertyException(dbus.exceptions.DBusException):
1250
603
"""A base class for D-Bus property-related exceptions
1251
604
"""
1252
pass
605
def __unicode__(self):
606
return unicode(str(self))
1253
607
1254
608
1255
609
class DBusPropertyAccessException(DBusPropertyException):
1264
618
pass
1265
619
1266
620
1267
class DBusObjectWithAnnotations(dbus.service.Object):
1268
"""A D-Bus object with annotations.
1269
1270
Classes inheriting from this can use the dbus_annotations
1271
decorator to add annotations to methods or signals.
1272
"""
1273
1274
@staticmethod
1275
def _is_dbus_thing(thing):
1276
"""Returns a function testing if an attribute is a D-Bus thing
1277
1278
If called like _is_dbus_thing("method") it returns a function
1279
suitable for use as predicate to inspect.getmembers().
1280
"""
1281
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1282
False)
1283
1284
def _get_all_dbus_things(self, thing):
1285
"""Returns a generator of (name, attribute) pairs
1286
"""
1287
return ((getattr(athing.__get__(self), "_dbus_name", name),
1288
athing.__get__(self))
1289
for cls in self.__class__.__mro__
1290
for name, athing in
1291
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1292
1293
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1294
out_signature="s",
1295
path_keyword='object_path',
1296
connection_keyword='connection')
1297
def Introspect(self, object_path, connection):
1298
"""Overloading of standard D-Bus method.
1299
1300
Inserts annotation tags on methods and signals.
1301
"""
1302
xmlstring = dbus.service.Object.Introspect(self, object_path,
1303
connection)
1304
try:
1305
document = xml.dom.minidom.parseString(xmlstring)
1306
1307
for if_tag in document.getElementsByTagName("interface"):
1308
# Add annotation tags
1309
for typ in ("method", "signal"):
1310
for tag in if_tag.getElementsByTagName(typ):
1311
annots = dict()
1312
for name, prop in (self.
1313
_get_all_dbus_things(typ)):
1314
if (name == tag.getAttribute("name")
1315
and prop._dbus_interface
1316
== if_tag.getAttribute("name")):
1317
annots.update(getattr(
1318
prop, "_dbus_annotations", {}))
1319
for name, value in annots.items():
1320
ann_tag = document.createElement(
1321
"annotation")
1322
ann_tag.setAttribute("name", name)
1323
ann_tag.setAttribute("value", value)
1324
tag.appendChild(ann_tag)
1325
# Add interface annotation tags
1326
for annotation, value in dict(
1327
itertools.chain.from_iterable(
1328
annotations().items()
1329
for name, annotations
1330
in self._get_all_dbus_things("interface")
1331
if name == if_tag.getAttribute("name")
1332
)).items():
1333
ann_tag = document.createElement("annotation")
1334
ann_tag.setAttribute("name", annotation)
1335
ann_tag.setAttribute("value", value)
1336
if_tag.appendChild(ann_tag)
1337
# Fix argument name for the Introspect method itself
1338
if (if_tag.getAttribute("name")
1339
== dbus.INTROSPECTABLE_IFACE):
1340
for cn in if_tag.getElementsByTagName("method"):
1341
if cn.getAttribute("name") == "Introspect":
1342
for arg in cn.getElementsByTagName("arg"):
1343
if (arg.getAttribute("direction")
1344
== "out"):
1345
arg.setAttribute("name",
1346
"xml_data")
1347
xmlstring = document.toxml("utf-8")
1348
document.unlink()
1349
except (AttributeError, xml.dom.DOMException,
1350
xml.parsers.expat.ExpatError) as error:
1351
logger.error("Failed to override Introspection method",
1352
exc_info=error)
1353
return xmlstring
1354
1355
1356
class DBusObjectWithProperties(DBusObjectWithAnnotations):
621
class DBusObjectWithProperties(dbus.service.Object):
1357
622
"""A D-Bus object with properties.
1358
623
1359
624
Classes inheriting from this can use the dbus_service_property
1360
625
decorator to expose methods as D-Bus properties. It exposes the
1361
626
standard Get(), Set(), and GetAll() methods on the D-Bus.
1362
627
"""
1363
628
629
@staticmethod
630
def _is_dbus_property(obj):
631
return getattr(obj, "_dbus_is_property", False)
632
633
def _get_all_dbus_properties(self):
634
"""Returns a generator of (name, attribute) pairs
635
"""
636
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
637
for cls in self.__class__.__mro__
638
for name, prop in
639
inspect.getmembers(cls, self._is_dbus_property))
640
1364
641
def _get_dbus_property(self, interface_name, property_name):
1365
642
"""Returns a bound method if one exists which is a D-Bus
1366
643
property with the specified name and interface.
1367
644
"""
1368
for cls in self.__class__.__mro__:
1369
for name, value in inspect.getmembers(
1370
cls, self._is_dbus_thing("property")):
645
for cls in self.__class__.__mro__:
646
for name, value in (inspect.getmembers
647
(cls, self._is_dbus_property)):
1371
648
if (value._dbus_name == property_name
1372
649
and value._dbus_interface == interface_name):
1373
650
return value.__get__(self)
1374
651
1375
652
# No such property
1376
raise DBusPropertyNotFound("{}:{}.{}".format(
1377
self.dbus_object_path, interface_name, property_name))
1378
1379
@classmethod
1380
def _get_all_interface_names(cls):
1381
"""Get a sequence of all interfaces supported by an object"""
1382
return (name for name in set(getattr(getattr(x, attr),
1383
"_dbus_interface", None)
1384
for x in (inspect.getmro(cls))
1385
for attr in dir(x))
1386
if name is not None)
1387
1388
@dbus.service.method(dbus.PROPERTIES_IFACE,
1389
in_signature="ss",
653
raise DBusPropertyNotFound(self.dbus_object_path + ":"
654
+ interface_name + "."
655
+ property_name)
656
657
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1390
658
out_signature="v")
1391
659
def Get(self, interface_name, property_name):
1392
660
"""Standard D-Bus property Get() method, see D-Bus standard.
1398
666
if not hasattr(value, "variant_level"):
1399
667
return value
1400
668
return type(value)(value, variant_level=value.variant_level+1)
1401
669
1402
670
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1403
671
def Set(self, interface_name, property_name, value):
1404
672
"""Standard D-Bus property Set() method, see D-Bus standard.
1410
678
# The byte_arrays option is not supported yet on
1411
679
# signatures other than "ay".
1412
680
if prop._dbus_signature != "ay":
1413
raise ValueError("Byte arrays not supported for non-"
1414
"'ay' signature {!r}"
1415
.format(prop._dbus_signature))
1416
value = dbus.ByteArray(b''.join(chr(byte)
1417
for byte in value))
681
raise ValueError
682
value = dbus.ByteArray(''.join(unichr(byte)
683
for byte in value))
1418
684
prop(value)
1419
1420
@dbus.service.method(dbus.PROPERTIES_IFACE,
1421
in_signature="s",
685
686
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1422
687
out_signature="a{sv}")
1423
688
def GetAll(self, interface_name):
1424
689
"""Standard D-Bus property GetAll() method, see D-Bus
1425
690
standard.
1426
691
1427
692
Note: Will not include properties with access="write".
1428
693
"""
1429
properties = {}
1430
for name, prop in self._get_all_dbus_things("property"):
694
all = {}
695
for name, prop in self._get_all_dbus_properties():
1431
696
if (interface_name
1432
697
and interface_name != prop._dbus_interface):
1433
698
# Interface non-empty but did not match
1437
702
continue
1438
703
value = prop()
1439
704
if not hasattr(value, "variant_level"):
1440
properties[name] = value
705
all[name] = value
1441
706
continue
1442
properties[name] = type(value)(
1443
value, variant_level=value.variant_level + 1)
1444
return dbus.Dictionary(properties, signature="sv")
1445
1446
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1447
def PropertiesChanged(self, interface_name, changed_properties,
1448
invalidated_properties):
1449
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1450
standard.
1451
"""
1452
pass
1453
707
all[name] = type(value)(value, variant_level=
708
value.variant_level+1)
709
return dbus.Dictionary(all, signature="sv")
710
1454
711
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1455
712
out_signature="s",
1456
713
path_keyword='object_path',
1457
714
connection_keyword='connection')
1458
715
def Introspect(self, object_path, connection):
1459
"""Overloading of standard D-Bus method.
1460
1461
Inserts property tags and interface annotation tags.
716
"""Standard D-Bus method, overloaded to insert property tags.
1462
717
"""
1463
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1464
object_path,
1465
connection)
718
xmlstring = dbus.service.Object.Introspect(self, object_path,
719
connection)
1466
720
try:
1467
721
document = xml.dom.minidom.parseString(xmlstring)
1468
1469
722
def make_tag(document, name, prop):
1470
723
e = document.createElement("property")
1471
724
e.setAttribute("name", name)
1472
725
e.setAttribute("type", prop._dbus_signature)
1473
726
e.setAttribute("access", prop._dbus_access)
1474
727
return e
1475
1476
728
for if_tag in document.getElementsByTagName("interface"):
1477
# Add property tags
1478
729
for tag in (make_tag(document, name, prop)
1479
730
for name, prop
1480
in self._get_all_dbus_things("property")
731
in self._get_all_dbus_properties()
1481
732
if prop._dbus_interface
1482
733
== if_tag.getAttribute("name")):
1483
734
if_tag.appendChild(tag)
1484
# Add annotation tags for properties
1485
for tag in if_tag.getElementsByTagName("property"):
1486
annots = dict()
1487
for name, prop in self._get_all_dbus_things(
1488
"property"):
1489
if (name == tag.getAttribute("name")
1490
and prop._dbus_interface
1491
== if_tag.getAttribute("name")):
1492
annots.update(getattr(
1493
prop, "_dbus_annotations", {}))
1494
for name, value in annots.items():
1495
ann_tag = document.createElement(
1496
"annotation")
1497
ann_tag.setAttribute("name", name)
1498
ann_tag.setAttribute("value", value)
1499
tag.appendChild(ann_tag)
1500
735
# Add the names to the return values for the
1501
736
# "org.freedesktop.DBus.Properties" methods
1502
737
if (if_tag.getAttribute("name")
1517
752
except (AttributeError, xml.dom.DOMException,
1518
753
xml.parsers.expat.ExpatError) as error:
1519
754
logger.error("Failed to override Introspection method",
1520
exc_info=error)
1521
return xmlstring
1522
1523
1524
try:
1525
dbus.OBJECT_MANAGER_IFACE
1526
except AttributeError:
1527
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1528
1529
1530
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1531
"""A D-Bus object with an ObjectManager.
1532
1533
Classes inheriting from this exposes the standard
1534
GetManagedObjects call and the InterfacesAdded and
1535
InterfacesRemoved signals on the standard
1536
"org.freedesktop.DBus.ObjectManager" interface.
1537
1538
Note: No signals are sent automatically; they must be sent
1539
manually.
1540
"""
1541
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1542
out_signature="a{oa{sa{sv}}}")
1543
def GetManagedObjects(self):
1544
"""This function must be overridden"""
1545
raise NotImplementedError()
1546
1547
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1548
signature="oa{sa{sv}}")
1549
def InterfacesAdded(self, object_path, interfaces_and_properties):
1550
pass
1551
1552
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1553
def InterfacesRemoved(self, object_path, interfaces):
1554
pass
1555
1556
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1557
out_signature="s",
1558
path_keyword='object_path',
1559
connection_keyword='connection')
1560
def Introspect(self, object_path, connection):
1561
"""Overloading of standard D-Bus method.
1562
1563
Override return argument name of GetManagedObjects to be
1564
"objpath_interfaces_and_properties"
1565
"""
1566
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1567
object_path,
1568
connection)
1569
try:
1570
document = xml.dom.minidom.parseString(xmlstring)
1571
1572
for if_tag in document.getElementsByTagName("interface"):
1573
# Fix argument name for the GetManagedObjects method
1574
if (if_tag.getAttribute("name")
1575
== dbus.OBJECT_MANAGER_IFACE):
1576
for cn in if_tag.getElementsByTagName("method"):
1577
if (cn.getAttribute("name")
1578
== "GetManagedObjects"):
1579
for arg in cn.getElementsByTagName("arg"):
1580
if (arg.getAttribute("direction")
1581
== "out"):
1582
arg.setAttribute(
1583
"name",
1584
"objpath_interfaces"
1585
"_and_properties")
1586
xmlstring = document.toxml("utf-8")
1587
document.unlink()
1588
except (AttributeError, xml.dom.DOMException,
1589
xml.parsers.expat.ExpatError) as error:
1590
logger.error("Failed to override Introspection method",
1591
exc_info=error)
1592
return xmlstring
1593
1594
1595
def datetime_to_dbus(dt, variant_level=0):
755
error)
756
return xmlstring
757
758
759
def datetime_to_dbus (dt, variant_level=0):
1596
760
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1597
761
if dt is None:
1598
return dbus.String("", variant_level=variant_level)
1599
return dbus.String(dt.isoformat(), variant_level=variant_level)
1600
1601
1602
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1603
"""A class decorator; applied to a subclass of
1604
dbus.service.Object, it will add alternate D-Bus attributes with
1605
interface names according to the "alt_interface_names" mapping.
1606
Usage:
1607
1608
@alternate_dbus_interfaces({"org.example.Interface":
1609
"net.example.AlternateInterface"})
1610
class SampleDBusObject(dbus.service.Object):
1611
@dbus.service.method("org.example.Interface")
1612
def SampleDBusMethod():
1613
pass
1614
1615
The above "SampleDBusMethod" on "SampleDBusObject" will be
1616
reachable via two interfaces: "org.example.Interface" and
1617
"net.example.AlternateInterface", the latter of which will have
1618
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1619
"true", unless "deprecate" is passed with a False value.
1620
1621
This works for methods and signals, and also for D-Bus properties
1622
(from DBusObjectWithProperties) and interfaces (from the
1623
dbus_interface_annotations decorator).
762
return dbus.String("", variant_level = variant_level)
763
return dbus.String(dt.isoformat(),
764
variant_level=variant_level)
765
766
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
767
.__metaclass__):
768
"""Applied to an empty subclass of a D-Bus object, this metaclass
769
will add additional D-Bus attributes matching a certain pattern.
1624
770
"""
1625
1626
def wrapper(cls):
1627
for orig_interface_name, alt_interface_name in (
1628
alt_interface_names.items()):
1629
attr = {}
1630
interface_names = set()
1631
# Go though all attributes of the class
1632
for attrname, attribute in inspect.getmembers(cls):
771
def __new__(mcs, name, bases, attr):
772
# Go through all the base classes which could have D-Bus
773
# methods, signals, or properties in them
774
for base in (b for b in bases
775
if issubclass(b, dbus.service.Object)):
776
# Go though all attributes of the base class
777
for attrname, attribute in inspect.getmembers(base):
1633
778
# Ignore non-D-Bus attributes, and D-Bus attributes
1634
779
# with the wrong interface name
1635
780
if (not hasattr(attribute, "_dbus_interface")
1636
or not attribute._dbus_interface.startswith(
1637
orig_interface_name)):
781
or not attribute._dbus_interface
782
.startswith("se.recompile.Mandos")):
1638
783
continue
1639
784
# Create an alternate D-Bus interface name based on
1640
785
# the current name
1641
alt_interface = attribute._dbus_interface.replace(
1642
orig_interface_name, alt_interface_name)
1643
interface_names.add(alt_interface)
786
alt_interface = (attribute._dbus_interface
787
.replace("se.recompile.Mandos",
788
"se.bsnet.fukt.Mandos"))
1644
789
# Is this a D-Bus signal?
1645
790
if getattr(attribute, "_dbus_is_signal", False):
1646
# Extract the original non-method undecorated
1647
# function by black magic
1648
if sys.version_info.major == 2:
1649
nonmethod_func = (dict(
791
# Extract the original non-method function by
792
# black magic
793
nonmethod_func = (dict(
1650
794
zip(attribute.func_code.co_freevars,
1651
attribute.__closure__))
1652
["func"].cell_contents)
1653
else:
1654
nonmethod_func = (dict(
1655
zip(attribute.__code__.co_freevars,
1656
attribute.__closure__))
1657
["func"].cell_contents)
795
attribute.__closure__))["func"]
796
.cell_contents)
1658
797
# Create a new, but exactly alike, function
1659
798
# object, and decorate it to be a new D-Bus signal
1660
799
# with the alternate D-Bus interface name
1661
new_function = copy_function(nonmethod_func)
1662
new_function = (dbus.service.signal(
1663
alt_interface,
1664
attribute._dbus_signature)(new_function))
1665
# Copy annotations, if any
1666
try:
1667
new_function._dbus_annotations = dict(
1668
attribute._dbus_annotations)
1669
except AttributeError:
1670
pass
1671
800
new_function = (dbus.service.signal
801
(alt_interface,
802
attribute._dbus_signature)
803
(types.FunctionType(
804
nonmethod_func.func_code,
805
nonmethod_func.func_globals,
806
nonmethod_func.func_name,
807
nonmethod_func.func_defaults,
808
nonmethod_func.func_closure)))
1672
809
# Define a creator of a function to call both the
1673
# original and alternate functions, so both the
1674
# original and alternate signals gets sent when
1675
# the function is called
810
# old and new functions, so both the old and new
811
# signals gets sent when the function is called
1676
812
def fixscope(func1, func2):
1677
813
"""This function is a scope container to pass
1678
814
func1 and func2 to the "call_both" function
1679
815
outside of its arguments"""
1680
1681
@functools.wraps(func2)
1682
816
def call_both(*args, **kwargs):
1683
817
"""This function will emit two D-Bus
1684
818
signals by calling func1 and func2"""
1685
819
func1(*args, **kwargs)
1686
820
func2(*args, **kwargs)
1687
# Make wrapper function look like a D-Bus
1688
# signal
1689
for name, attr in inspect.getmembers(func2):
1690
if name.startswith("_dbus_"):
1691
setattr(call_both, name, attr)
1692
1693
821
return call_both
1694
822
# Create the "call_both" function and add it to
1695
823
# the class
1696
attr[attrname] = fixscope(attribute, new_function)
824
attr[attrname] = fixscope(attribute,
825
new_function)
1697
826
# Is this a D-Bus method?
1698
827
elif getattr(attribute, "_dbus_is_method", False):
1699
828
# Create a new, but exactly alike, function
1700
829
# object. Decorate it to be a new D-Bus method
1701
830
# with the alternate D-Bus interface name. Add it
1702
831
# to the class.
1703
attr[attrname] = (
1704
dbus.service.method(
1705
alt_interface,
1706
attribute._dbus_in_signature,
1707
attribute._dbus_out_signature)
1708
(copy_function(attribute)))
1709
# Copy annotations, if any
1710
try:
1711
attr[attrname]._dbus_annotations = dict(
1712
attribute._dbus_annotations)
1713
except AttributeError:
1714
pass
832
attr[attrname] = (dbus.service.method
833
(alt_interface,
834
attribute._dbus_in_signature,
835
attribute._dbus_out_signature)
836
(types.FunctionType
837
(attribute.func_code,
838
attribute.func_globals,
839
attribute.func_name,
840
attribute.func_defaults,
841
attribute.func_closure)))
1715
842
# Is this a D-Bus property?
1716
843
elif getattr(attribute, "_dbus_is_property", False):
1717
844
# Create a new, but exactly alike, function
1718
845
# object, and decorate it to be a new D-Bus
1719
846
# property with the alternate D-Bus interface
1720
847
# name. Add it to the class.
1721
attr[attrname] = (dbus_service_property(
1722
alt_interface, attribute._dbus_signature,
1723
attribute._dbus_access,
1724
attribute._dbus_get_args_options
1725
["byte_arrays"])
1726
(copy_function(attribute)))
1727
# Copy annotations, if any
1728
try:
1729
attr[attrname]._dbus_annotations = dict(
1730
attribute._dbus_annotations)
1731
except AttributeError:
1732
pass
1733
# Is this a D-Bus interface?
1734
elif getattr(attribute, "_dbus_is_interface", False):
1735
# Create a new, but exactly alike, function
1736
# object. Decorate it to be a new D-Bus interface
1737
# with the alternate D-Bus interface name. Add it
1738
# to the class.
1739
attr[attrname] = (
1740
dbus_interface_annotations(alt_interface)
1741
(copy_function(attribute)))
1742
if deprecate:
1743
# Deprecate all alternate interfaces
1744
iname = "_AlternateDBusNames_interface_annotation{}"
1745
for interface_name in interface_names:
1746
1747
@dbus_interface_annotations(interface_name)
1748
def func(self):
1749
return {"org.freedesktop.DBus.Deprecated":
1750
"true"}
1751
# Find an unused name
1752
for aname in (iname.format(i)
1753
for i in itertools.count()):
1754
if aname not in attr:
1755
attr[aname] = func
1756
break
1757
if interface_names:
1758
# Replace the class with a new subclass of it with
1759
# methods, signals, etc. as created above.
1760
if sys.version_info.major == 2:
1761
cls = type(b"{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
else:
1764
cls = type("{}Alternate".format(cls.__name__),
1765
(cls, ), attr)
1766
return cls
1767
1768
return wrapper
1769
1770
1771
@alternate_dbus_interfaces({"se.recompile.Mandos":
1772
"se.bsnet.fukt.Mandos"})
848
attr[attrname] = (dbus_service_property
849
(alt_interface,
850
attribute._dbus_signature,
851
attribute._dbus_access,
852
attribute
853
._dbus_get_args_options
854
["byte_arrays"])
855
(types.FunctionType
856
(attribute.func_code,
857
attribute.func_globals,
858
attribute.func_name,
859
attribute.func_defaults,
860
attribute.func_closure)))
861
return type.__new__(mcs, name, bases, attr)
862
1773
863
class ClientDBus(Client, DBusObjectWithProperties):
1774
864
"""A Client class using D-Bus
1775
865
1776
866
Attributes:
1777
867
dbus_object_path: dbus.ObjectPath
1778
868
bus: dbus.SystemBus()
1779
869
"""
1780
870
1781
871
runtime_expansions = (Client.runtime_expansions
1782
+ ("dbus_object_path", ))
1783
1784
_interface = "se.recompile.Mandos.Client"
1785
872
+ ("dbus_object_path",))
873
1786
874
# dbus.service.Object doesn't use super(), so we can't either.
1787
1788
def __init__(self, bus=None, *args, **kwargs):
875
876
def __init__(self, bus = None, *args, **kwargs):
877
self._approvals_pending = 0
1789
878
self.bus = bus
1790
879
Client.__init__(self, *args, **kwargs)
1791
880
# Only now, when this client is initialized, can it show up on
1792
881
# the D-Bus
1793
client_object_name = str(self.name).translate(
882
client_object_name = unicode(self.name).translate(
1794
883
{ord("."): ord("_"),
1795
884
ord("-"): ord("_")})
1796
self.dbus_object_path = dbus.ObjectPath(
1797
"/clients/" + client_object_name)
885
self.dbus_object_path = (dbus.ObjectPath
886
("/clients/" + client_object_name))
1798
887
DBusObjectWithProperties.__init__(self, self.bus,
1799
888
self.dbus_object_path)
1800
1801
def notifychangeproperty(transform_func, dbus_name,
1802
type_func=lambda x: x,
1803
variant_level=1,
1804
invalidate_only=False,
1805
_interface=_interface):
889
890
def notifychangeproperty(transform_func,
891
dbus_name, type_func=lambda x: x,
892
variant_level=1):
1806
893
""" Modify a variable so that it's a property which announces
1807
894
its changes to DBus.
1808
895
1813
900
to the D-Bus. Default: no transform
1814
901
variant_level: D-Bus variant level. Default: 1
1815
902
"""
1816
attrname = "_{}".format(dbus_name)
1817
903
attrname = "_{0}".format(dbus_name)
1818
904
def setter(self, value):
1819
905
if hasattr(self, "dbus_object_path"):
1820
906
if (not hasattr(self, attrname) or
1821
907
type_func(getattr(self, attrname, None))
1822
908
!= type_func(value)):
1823
if invalidate_only:
1824
self.PropertiesChanged(
1825
_interface, dbus.Dictionary(),
1826
dbus.Array((dbus_name, )))
1827
else:
1828
dbus_value = transform_func(
1829
type_func(value),
1830
variant_level=variant_level)
1831
self.PropertyChanged(dbus.String(dbus_name),
1832
dbus_value)
1833
self.PropertiesChanged(
1834
_interface,
1835
dbus.Dictionary({dbus.String(dbus_name):
1836
dbus_value}),
1837
dbus.Array())
909
dbus_value = transform_func(type_func(value),
910
variant_level
911
=variant_level)
912
self.PropertyChanged(dbus.String(dbus_name),
913
dbus_value)
1838
914
setattr(self, attrname, value)
1839
915
1840
916
return property(lambda self: getattr(self, attrname), setter)
1841
917
918
1842
919
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1843
920
approvals_pending = notifychangeproperty(dbus.Boolean,
1844
921
"ApprovalPending",
1845
type_func=bool)
922
type_func = bool)
1846
923
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1847
924
last_enabled = notifychangeproperty(datetime_to_dbus,
1848
925
"LastEnabled")
1849
checker = notifychangeproperty(
1850
dbus.Boolean, "CheckerRunning",
1851
type_func=lambda checker: checker is not None)
926
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
927
type_func = lambda checker:
928
checker is not None)
1852
929
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1853
930
"LastCheckedOK")
1854
last_checker_status = notifychangeproperty(dbus.Int16,
1855
"LastCheckerStatus")
1856
931
last_approval_request = notifychangeproperty(
1857
932
datetime_to_dbus, "LastApprovalRequest")
1858
933
approved_by_default = notifychangeproperty(dbus.Boolean,
1859
934
"ApprovedByDefault")
1860
approval_delay = notifychangeproperty(
1861
dbus.UInt64, "ApprovalDelay",
1862
type_func=lambda td: td.total_seconds() * 1000)
935
approval_delay = notifychangeproperty(dbus.UInt16,
936
"ApprovalDelay",
937
type_func =
938
_timedelta_to_milliseconds)
1863
939
approval_duration = notifychangeproperty(
1864
dbus.UInt64, "ApprovalDuration",
1865
type_func=lambda td: td.total_seconds() * 1000)
940
dbus.UInt16, "ApprovalDuration",
941
type_func = _timedelta_to_milliseconds)
1866
942
host = notifychangeproperty(dbus.String, "Host")
1867
timeout = notifychangeproperty(
1868
dbus.UInt64, "Timeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
943
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
944
type_func =
945
_timedelta_to_milliseconds)
1870
946
extended_timeout = notifychangeproperty(
1871
dbus.UInt64, "ExtendedTimeout",
1872
type_func=lambda td: td.total_seconds() * 1000)
1873
interval = notifychangeproperty(
1874
dbus.UInt64, "Interval",
1875
type_func=lambda td: td.total_seconds() * 1000)
947
dbus.UInt16, "ExtendedTimeout",
948
type_func = _timedelta_to_milliseconds)
949
interval = notifychangeproperty(dbus.UInt16,
950
"Interval",
951
type_func =
952
_timedelta_to_milliseconds)
1876
953
checker_command = notifychangeproperty(dbus.String, "Checker")
1877
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1878
invalidate_only=True)
1879
954
1880
955
del notifychangeproperty
1881
956
1882
957
def __del__(self, *args, **kwargs):
1883
958
try:
1884
959
self.remove_from_connection()
1887
962
if hasattr(DBusObjectWithProperties, "__del__"):
1888
963
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1889
964
Client.__del__(self, *args, **kwargs)
1890
1891
def checker_callback(self, source, condition,
1892
connection, command, *args, **kwargs):
1893
ret = Client.checker_callback(self, source, condition,
1894
connection, command, *args,
1895
**kwargs)
1896
exitstatus = self.last_checker_status
1897
if exitstatus >= 0:
965
966
def checker_callback(self, pid, condition, command,
967
*args, **kwargs):
968
self.checker_callback_tag = None
969
self.checker = None
970
if os.WIFEXITED(condition):
971
exitstatus = os.WEXITSTATUS(condition)
1898
972
# Emit D-Bus signal
1899
973
self.CheckerCompleted(dbus.Int16(exitstatus),
1900
# This is specific to GNU libC
1901
dbus.Int64(exitstatus << 8),
974
dbus.Int64(condition),
1902
975
dbus.String(command))
1903
976
else:
1904
977
# Emit D-Bus signal
1905
978
self.CheckerCompleted(dbus.Int16(-1),
1906
dbus.Int64(
1907
# This is specific to GNU libC
1908
(exitstatus << 8)
1909
| self.last_checker_signal),
979
dbus.Int64(condition),
1910
980
dbus.String(command))
1911
return ret
1912
981
982
return Client.checker_callback(self, pid, condition, command,
983
*args, **kwargs)
984
1913
985
def start_checker(self, *args, **kwargs):
1914
old_checker_pid = getattr(self.checker, "pid", None)
986
old_checker = self.checker
987
if self.checker is not None:
988
old_checker_pid = self.checker.pid
989
else:
990
old_checker_pid = None
1915
991
r = Client.start_checker(self, *args, **kwargs)
1916
992
# Only if new checker process was started
1917
993
if (self.checker is not None
1919
995
# Emit D-Bus signal
1920
996
self.CheckerStarted(self.current_checker_command)
1921
997
return r
1922
998
1923
999
def _reset_approved(self):
1924
self.approved = None
1000
self._approved = None
1925
1001
return False
1926
1002
1927
1003
def approve(self, value=True):
1928
self.approved = value
1929
GLib.timeout_add(int(self.approval_duration.total_seconds()
1930
* 1000), self._reset_approved)
1931
1004
self.send_changedstate()
1932
1933
# D-Bus methods, signals & properties
1934
1935
# Interfaces
1936
1937
# Signals
1938
1005
self._approved = value
1006
gobject.timeout_add(_timedelta_to_milliseconds
1007
(self.approval_duration),
1008
self._reset_approved)
1009
1010
1011
## D-Bus methods, signals & properties
1012
_interface = "se.recompile.Mandos.Client"
1013
1014
## Signals
1015
1939
1016
# CheckerCompleted - signal
1940
1017
@dbus.service.signal(_interface, signature="nxs")
1941
1018
def CheckerCompleted(self, exitcode, waitstatus, command):
1942
1019
"D-Bus signal"
1943
1020
pass
1944
1021
1945
1022
# CheckerStarted - signal
1946
1023
@dbus.service.signal(_interface, signature="s")
1947
1024
def CheckerStarted(self, command):
1948
1025
"D-Bus signal"
1949
1026
pass
1950
1027
1951
1028
# PropertyChanged - signal
1952
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1953
1029
@dbus.service.signal(_interface, signature="sv")
1954
1030
def PropertyChanged(self, property, value):
1955
1031
"D-Bus signal"
1956
1032
pass
1957
1033
1958
1034
# GotSecret - signal
1959
1035
@dbus.service.signal(_interface)
1960
1036
def GotSecret(self):
1963
1039
server to mandos-client
1964
1040
"""
1965
1041
pass
1966
1042
1967
1043
# Rejected - signal
1968
1044
@dbus.service.signal(_interface, signature="s")
1969
1045
def Rejected(self, reason):
1970
1046
"D-Bus signal"
1971
1047
pass
1972
1048
1973
1049
# NeedApproval - signal
1974
1050
@dbus.service.signal(_interface, signature="tb")
1975
1051
def NeedApproval(self, timeout, default):
1976
1052
"D-Bus signal"
1977
1053
return self.need_approval()
1978
1979
# Methods
1980
1054
1055
## Methods
1056
1981
1057
# Approve - method
1982
1058
@dbus.service.method(_interface, in_signature="b")
1983
1059
def Approve(self, value):
1984
1060
self.approve(value)
1985
1061
1986
1062
# CheckedOK - method
1987
1063
@dbus.service.method(_interface)
1988
1064
def CheckedOK(self):
1989
1065
self.checked_ok()
1990
1066
1991
1067
# Enable - method
1992
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1993
1068
@dbus.service.method(_interface)
1994
1069
def Enable(self):
1995
1070
"D-Bus method"
1996
1071
self.enable()
1997
1072
1998
1073
# StartChecker - method
1999
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2000
1074
@dbus.service.method(_interface)
2001
1075
def StartChecker(self):
2002
1076
"D-Bus method"
2003
1077
self.start_checker()
2004
1078
2005
1079
# Disable - method
2006
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2007
1080
@dbus.service.method(_interface)
2008
1081
def Disable(self):
2009
1082
"D-Bus method"
2010
1083
self.disable()
2011
1084
2012
1085
# StopChecker - method
2013
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2014
1086
@dbus.service.method(_interface)
2015
1087
def StopChecker(self):
2016
1088
self.stop_checker()
2017
2018
# Properties
2019
1089
1090
## Properties
1091
2020
1092
# ApprovalPending - property
2021
1093
@dbus_service_property(_interface, signature="b", access="read")
2022
1094
def ApprovalPending_dbus_property(self):
2023
1095
return dbus.Boolean(bool(self.approvals_pending))
2024
1096
2025
1097
# ApprovedByDefault - property
2026
@dbus_service_property(_interface,
2027
signature="b",
1098
@dbus_service_property(_interface, signature="b",
2028
1099
access="readwrite")
2029
1100
def ApprovedByDefault_dbus_property(self, value=None):
2030
1101
if value is None: # get
2031
1102
return dbus.Boolean(self.approved_by_default)
2032
1103
self.approved_by_default = bool(value)
2033
1104
2034
1105
# ApprovalDelay - property
2035
@dbus_service_property(_interface,
2036
signature="t",
1106
@dbus_service_property(_interface, signature="t",
2037
1107
access="readwrite")
2038
1108
def ApprovalDelay_dbus_property(self, value=None):
2039
1109
if value is None: # get
2040
return dbus.UInt64(self.approval_delay.total_seconds()
2041
* 1000)
1110
return dbus.UInt64(self.approval_delay_milliseconds())
2042
1111
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2043
1112
2044
1113
# ApprovalDuration - property
2045
@dbus_service_property(_interface,
2046
signature="t",
1114
@dbus_service_property(_interface, signature="t",
2047
1115
access="readwrite")
2048
1116
def ApprovalDuration_dbus_property(self, value=None):
2049
1117
if value is None: # get
2050
return dbus.UInt64(self.approval_duration.total_seconds()
2051
* 1000)
1118
return dbus.UInt64(_timedelta_to_milliseconds(
1119
self.approval_duration))
2052
1120
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2053
1121
2054
1122
# Name - property
2055
@dbus_annotations(
2056
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2057
1123
@dbus_service_property(_interface, signature="s", access="read")
2058
1124
def Name_dbus_property(self):
2059
1125
return dbus.String(self.name)
2060
2061
# KeyID - property
2062
@dbus_annotations(
2063
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2064
@dbus_service_property(_interface, signature="s", access="read")
2065
def KeyID_dbus_property(self):
2066
return dbus.String(self.key_id)
2067
1126
2068
1127
# Fingerprint - property
2069
@dbus_annotations(
2070
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2071
1128
@dbus_service_property(_interface, signature="s", access="read")
2072
1129
def Fingerprint_dbus_property(self):
2073
1130
return dbus.String(self.fingerprint)
2074
1131
2075
1132
# Host - property
2076
@dbus_service_property(_interface,
2077
signature="s",
1133
@dbus_service_property(_interface, signature="s",
2078
1134
access="readwrite")
2079
1135
def Host_dbus_property(self, value=None):
2080
1136
if value is None: # get
2081
1137
return dbus.String(self.host)
2082
self.host = str(value)
2083
1138
self.host = value
1139
2084
1140
# Created - property
2085
@dbus_annotations(
2086
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2087
1141
@dbus_service_property(_interface, signature="s", access="read")
2088
1142
def Created_dbus_property(self):
2089
return datetime_to_dbus(self.created)
2090
1143
return dbus.String(datetime_to_dbus(self.created))
1144
2091
1145
# LastEnabled - property
2092
1146
@dbus_service_property(_interface, signature="s", access="read")
2093
1147
def LastEnabled_dbus_property(self):
2094
1148
return datetime_to_dbus(self.last_enabled)
2095
1149
2096
1150
# Enabled - property
2097
@dbus_service_property(_interface,
2098
signature="b",
1151
@dbus_service_property(_interface, signature="b",
2099
1152
access="readwrite")
2100
1153
def Enabled_dbus_property(self, value=None):
2101
1154
if value is None: # get
2104
1157
self.enable()
2105
1158
else:
2106
1159
self.disable()
2107
1160
2108
1161
# LastCheckedOK - property
2109
@dbus_service_property(_interface,
2110
signature="s",
1162
@dbus_service_property(_interface, signature="s",
2111
1163
access="readwrite")
2112
1164
def LastCheckedOK_dbus_property(self, value=None):
2113
1165
if value is not None:
2114
1166
self.checked_ok()
2115
1167
return
2116
1168
return datetime_to_dbus(self.last_checked_ok)
2117
2118
# LastCheckerStatus - property
2119
@dbus_service_property(_interface, signature="n", access="read")
2120
def LastCheckerStatus_dbus_property(self):
2121
return dbus.Int16(self.last_checker_status)
2122
1169
2123
1170
# Expires - property
2124
1171
@dbus_service_property(_interface, signature="s", access="read")
2125
1172
def Expires_dbus_property(self):
2126
1173
return datetime_to_dbus(self.expires)
2127
1174
2128
1175
# LastApprovalRequest - property
2129
1176
@dbus_service_property(_interface, signature="s", access="read")
2130
1177
def LastApprovalRequest_dbus_property(self):
2131
1178
return datetime_to_dbus(self.last_approval_request)
2132
1179
2133
1180
# Timeout - property
2134
@dbus_service_property(_interface,
2135
signature="t",
1181
@dbus_service_property(_interface, signature="t",
2136
1182
access="readwrite")
2137
1183
def Timeout_dbus_property(self, value=None):
2138
1184
if value is None: # get
2139
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2140
old_timeout = self.timeout
1185
return dbus.UInt64(self.timeout_milliseconds())
2141
1186
self.timeout = datetime.timedelta(0, 0, 0, value)
2142
# Reschedule disabling
2143
if self.enabled:
2144
now = datetime.datetime.utcnow()
2145
self.expires += self.timeout - old_timeout
2146
if self.expires <= now:
2147
# The timeout has passed
2148
self.disable()
2149
else:
2150
if (getattr(self, "disable_initiator_tag", None)
2151
is None):
2152
return
2153
GLib.source_remove(self.disable_initiator_tag)
2154
self.disable_initiator_tag = GLib.timeout_add(
2155
int((self.expires - now).total_seconds() * 1000),
2156
self.disable)
2157
1187
if getattr(self, "disable_initiator_tag", None) is None:
1188
return
1189
# Reschedule timeout
1190
gobject.source_remove(self.disable_initiator_tag)
1191
self.disable_initiator_tag = None
1192
self.expires = None
1193
time_to_die = _timedelta_to_milliseconds((self
1194
.last_checked_ok
1195
+ self.timeout)
1196
- datetime.datetime
1197
.utcnow())
1198
if time_to_die <= 0:
1199
# The timeout has passed
1200
self.disable()
1201
else:
1202
self.expires = (datetime.datetime.utcnow()
1203
+ datetime.timedelta(milliseconds =
1204
time_to_die))
1205
self.disable_initiator_tag = (gobject.timeout_add
1206
(time_to_die, self.disable))
1207
2158
1208
# ExtendedTimeout - property
2159
@dbus_service_property(_interface,
2160
signature="t",
1209
@dbus_service_property(_interface, signature="t",
2161
1210
access="readwrite")
2162
1211
def ExtendedTimeout_dbus_property(self, value=None):
2163
1212
if value is None: # get
2164
return dbus.UInt64(self.extended_timeout.total_seconds()
2165
* 1000)
1213
return dbus.UInt64(self.extended_timeout_milliseconds())
2166
1214
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2167
1215
2168
1216
# Interval - property
2169
@dbus_service_property(_interface,
2170
signature="t",
1217
@dbus_service_property(_interface, signature="t",
2171
1218
access="readwrite")
2172
1219
def Interval_dbus_property(self, value=None):
2173
1220
if value is None: # get
2174
return dbus.UInt64(self.interval.total_seconds() * 1000)
1221
return dbus.UInt64(self.interval_milliseconds())
2175
1222
self.interval = datetime.timedelta(0, 0, 0, value)
2176
1223
if getattr(self, "checker_initiator_tag", None) is None:
2177
1224
return
2178
if self.enabled:
2179
# Reschedule checker run
2180
GLib.source_remove(self.checker_initiator_tag)
2181
self.checker_initiator_tag = GLib.timeout_add(
2182
value, self.start_checker)
2183
self.start_checker() # Start one now, too
2184
1225
# Reschedule checker run
1226
gobject.source_remove(self.checker_initiator_tag)
1227
self.checker_initiator_tag = (gobject.timeout_add
1228
(value, self.start_checker))
1229
self.start_checker() # Start one now, too
1230
2185
1231
# Checker - property
2186
@dbus_service_property(_interface,
2187
signature="s",
1232
@dbus_service_property(_interface, signature="s",
2188
1233
access="readwrite")
2189
1234
def Checker_dbus_property(self, value=None):
2190
1235
if value is None: # get
2191
1236
return dbus.String(self.checker_command)
2192
self.checker_command = str(value)
2193
1237
self.checker_command = value
1238
2194
1239
# CheckerRunning - property
2195
@dbus_service_property(_interface,
2196
signature="b",
1240
@dbus_service_property(_interface, signature="b",
2197
1241
access="readwrite")
2198
1242
def CheckerRunning_dbus_property(self, value=None):
2199
1243
if value is None: # get
2202
1246
self.start_checker()
2203
1247
else:
2204
1248
self.stop_checker()
2205
1249
2206
1250
# ObjectPath - property
2207
@dbus_annotations(
2208
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2209
"org.freedesktop.DBus.Deprecated": "true"})
2210
1251
@dbus_service_property(_interface, signature="o", access="read")
2211
1252
def ObjectPath_dbus_property(self):
2212
return self.dbus_object_path # is already a dbus.ObjectPath
2213
1253
return self.dbus_object_path # is already a dbus.ObjectPath
1254
2214
1255
# Secret = property
2215
@dbus_annotations(
2216
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2217
"invalidates"})
2218
@dbus_service_property(_interface,
2219
signature="ay",
2220
access="write",
2221
byte_arrays=True)
1256
@dbus_service_property(_interface, signature="ay",
1257
access="write", byte_arrays=True)
2222
1258
def Secret_dbus_property(self, value):
2223
self.secret = bytes(value)
2224
1259
self.secret = str(value)
1260
2225
1261
del _interface
2226
1262
2227
1263
2228
class ProxyClient:
2229
def __init__(self, child_pipe, key_id, fpr, address):
1264
class ProxyClient(object):
1265
def __init__(self, child_pipe, fpr, address):
2230
1266
self._pipe = child_pipe
2231
self._pipe.send(('init', key_id, fpr, address))
1267
self._pipe.send(('init', fpr, address))
2232
1268
if not self._pipe.recv():
2233
raise KeyError(key_id or fpr)
2234
1269
raise KeyError()
1270
2235
1271
def __getattribute__(self, name):
2236
if name == '_pipe':
1272
if(name == '_pipe'):
2237
1273
return super(ProxyClient, self).__getattribute__(name)
2238
1274
self._pipe.send(('getattr', name))
2239
1275
data = self._pipe.recv()
2240
1276
if data[0] == 'data':
2241
1277
return data[1]
2242
1278
if data[0] == 'function':
2243
2244
1279
def func(*args, **kwargs):
2245
1280
self._pipe.send(('funcall', name, args, kwargs))
2246
1281
return self._pipe.recv()[1]
2247
2248
1282
return func
2249
1283
2250
1284
def __setattr__(self, name, value):
2251
if name == '_pipe':
1285
if(name == '_pipe'):
2252
1286
return super(ProxyClient, self).__setattr__(name, value)
2253
1287
self._pipe.send(('setattr', name, value))
2254
1288
1289
class ClientDBusTransitional(ClientDBus):
1290
__metaclass__ = AlternateDBusNamesMetaclass
2255
1291
2256
1292
class ClientHandler(socketserver.BaseRequestHandler, object):
2257
1293
"""A class to handle client connections.
2258
1294
2259
1295
Instantiated once for each connection to handle it.
2260
1296
Note: This will run in its own forked process."""
2261
1297
2262
1298
def handle(self):
2263
1299
with contextlib.closing(self.server.child_pipe) as child_pipe:
2264
1300
logger.info("TCP connection from: %s",
2265
str(self.client_address))
1301
unicode(self.client_address))
2266
1302
logger.debug("Pipe FD: %d",
2267
1303
self.server.child_pipe.fileno())
2268
2269
session = gnutls.ClientSession(self.request)
2270
2271
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2272
# "+AES-256-CBC", "+SHA1",
2273
# "+COMP-NULL", "+CTYPE-OPENPGP",
2274
# "+DHE-DSS"))
1304
1305
session = (gnutls.connection
1306
.ClientSession(self.request,
1307
gnutls.connection
1308
.X509Credentials()))
1309
1310
# Note: gnutls.connection.X509Credentials is really a
1311
# generic GnuTLS certificate credentials object so long as
1312
# no X.509 keys are added to it. Therefore, we can use it
1313
# here despite using OpenPGP certificates.
1314
1315
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1316
# "+AES-256-CBC", "+SHA1",
1317
# "+COMP-NULL", "+CTYPE-OPENPGP",
1318
# "+DHE-DSS"))
2275
1319
# Use a fallback default, since this MUST be set.
2276
1320
priority = self.server.gnutls_priority
2277
1321
if priority is None:
2278
1322
priority = "NORMAL"
2279
gnutls.priority_set_direct(session._c_object,
2280
priority.encode("utf-8"),
2281
None)
2282
1323
(gnutls.library.functions
1324
.gnutls_priority_set_direct(session._c_object,
1325
priority, None))
1326
2283
1327
# Start communication using the Mandos protocol
2284
1328
# Get protocol number
2285
1329
line = self.request.makefile().readline()
2286
1330
logger.debug("Protocol version: %r", line)
2287
1331
try:
2288
1332
if int(line.strip().split()[0]) > 1:
2289
raise RuntimeError(line)
1333
raise RuntimeError
2290
1334
except (ValueError, IndexError, RuntimeError) as error:
2291
1335
logger.error("Unknown protocol version: %s", error)
2292
1336
return
2293
1337
2294
1338
# Start GnuTLS connection
2295
1339
try:
2296
1340
session.handshake()
2297
except gnutls.Error as error:
1341
except gnutls.errors.GNUTLSError as error:
2298
1342
logger.warning("Handshake failed: %s", error)
2299
1343
# Do not run session.bye() here: the session is not
2300
1344
# established. Just abandon the request.
2301
1345
return
2302
1346
logger.debug("Handshake succeeded")
2303
1347
2304
1348
approval_required = False
2305
1349
try:
2306
if gnutls.has_rawpk:
2307
fpr = b""
2308
try:
2309
key_id = self.key_id(
2310
self.peer_certificate(session))
2311
except (TypeError, gnutls.Error) as error:
2312
logger.warning("Bad certificate: %s", error)
2313
return
2314
logger.debug("Key ID: %s", key_id)
2315
2316
else:
2317
key_id = b""
2318
try:
2319
fpr = self.fingerprint(
2320
self.peer_certificate(session))
2321
except (TypeError, gnutls.Error) as error:
2322
logger.warning("Bad certificate: %s", error)
2323
return
2324
logger.debug("Fingerprint: %s", fpr)
2325
2326
try:
2327
client = ProxyClient(child_pipe, key_id, fpr,
1350
try:
1351
fpr = self.fingerprint(self.peer_certificate
1352
(session))
1353
except (TypeError,
1354
gnutls.errors.GNUTLSError) as error:
1355
logger.warning("Bad certificate: %s", error)
1356
return
1357
logger.debug("Fingerprint: %s", fpr)
1358
1359
try:
1360
client = ProxyClient(child_pipe, fpr,
2328
1361
self.client_address)
2329
1362
except KeyError:
2330
1363
return
2331
1364
2332
1365
if client.approval_delay:
2333
1366
delay = client.approval_delay
2334
1367
client.approvals_pending += 1
2335
1368
approval_required = True
2336
1369
2337
1370
while True:
2338
1371
if not client.enabled:
2339
1372
logger.info("Client %s is disabled",
2340
client.name)
1373
client.name)
2341
1374
if self.server.use_dbus:
2342
1375
# Emit D-Bus signal
2343
1376
client.Rejected("Disabled")
2344
1377
return
2345
2346
if client.approved or not client.approval_delay:
2347
# We are approved or approval is disabled
1378
1379
if client._approved or not client.approval_delay:
1380
#We are approved or approval is disabled
2348
1381
break
2349
elif client.approved is None:
1382
elif client._approved is None:
2350
1383
logger.info("Client %s needs approval",
2351
1384
client.name)
2352
1385
if self.server.use_dbus:
2353
1386
# Emit D-Bus signal
2354
1387
client.NeedApproval(
2355
client.approval_delay.total_seconds()
2356
* 1000, client.approved_by_default)
1388
client.approval_delay_milliseconds(),
1389
client.approved_by_default)
2357
1390
else:
2358
1391
logger.warning("Client %s was not approved",
2359
1392
client.name)
2361
1394
# Emit D-Bus signal
2362
1395
client.Rejected("Denied")
2363
1396
return
2364
2365
# wait until timeout or approved
1397
1398
#wait until timeout or approved
2366
1399
time = datetime.datetime.now()
2367
1400
client.changedstate.acquire()
2368
client.changedstate.wait(delay.total_seconds())
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1403
/ 1000)))
2369
1404
client.changedstate.release()
2370
1405
time2 = datetime.datetime.now()
2371
1406
if (time2 - time) >= delay:
2381
1416
break
2382
1417
else:
2383
1418
delay -= time2 - time
2384
2385
try:
2386
session.send(client.secret)
2387
except gnutls.Error as error:
2388
logger.warning("gnutls send failed",
2389
exc_info=error)
2390
return
2391
1419
1420
sent_size = 0
1421
while sent_size < len(client.secret):
1422
try:
1423
sent = session.send(client.secret[sent_size:])
1424
except gnutls.errors.GNUTLSError as error:
1425
logger.warning("gnutls send failed")
1426
return
1427
logger.debug("Sent: %d, remaining: %d",
1428
sent, len(client.secret)
1429
- (sent_size + sent))
1430
sent_size += sent
1431
2392
1432
logger.info("Sending secret to %s", client.name)
2393
1433
# bump the timeout using extended_timeout
2394
client.bump_timeout(client.extended_timeout)
1434
client.checked_ok(client.extended_timeout)
2395
1435
if self.server.use_dbus:
2396
1436
# Emit D-Bus signal
2397
1437
client.GotSecret()
2398
1438
2399
1439
finally:
2400
1440
if approval_required:
2401
1441
client.approvals_pending -= 1
2402
1442
try:
2403
1443
session.bye()
2404
except gnutls.Error as error:
2405
logger.warning("GnuTLS bye failed",
2406
exc_info=error)
2407
1444
except gnutls.errors.GNUTLSError as error:
1445
logger.warning("GnuTLS bye failed")
1446
2408
1447
@staticmethod
2409
1448
def peer_certificate(session):
2410
"Return the peer's certificate as a bytestring"
2411
try:
2412
cert_type = gnutls.certificate_type_get2(session._c_object,
2413
gnutls.CTYPE_PEERS)
2414
except AttributeError:
2415
cert_type = gnutls.certificate_type_get(session._c_object)
2416
if gnutls.has_rawpk:
2417
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2418
else:
2419
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2420
# If not a valid certificate type...
2421
if cert_type not in valid_cert_types:
2422
logger.info("Cert type %r not in %r", cert_type,
2423
valid_cert_types)
2424
# ...return invalid data
2425
return b""
1449
"Return the peer's OpenPGP certificate as a bytestring"
1450
# If not an OpenPGP certificate...
1451
if (gnutls.library.functions
1452
.gnutls_certificate_type_get(session._c_object)
1453
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1454
# ...do the normal thing
1455
return session.peer_certificate
2426
1456
list_size = ctypes.c_uint(1)
2427
cert_list = (gnutls.certificate_get_peers
1457
cert_list = (gnutls.library.functions
1458
.gnutls_certificate_get_peers
2428
1459
(session._c_object, ctypes.byref(list_size)))
2429
1460
if not bool(cert_list) and list_size.value != 0:
2430
raise gnutls.Error("error getting peer certificate")
1461
raise gnutls.errors.GNUTLSError("error getting peer"
1462
" certificate")
2431
1463
if list_size.value == 0:
2432
1464
return None
2433
1465
cert = cert_list[0]
2434
1466
return ctypes.string_at(cert.data, cert.size)
2435
2436
@staticmethod
2437
def key_id(certificate):
2438
"Convert a certificate bytestring to a hexdigit key ID"
2439
# New GnuTLS "datum" with the public key
2440
datum = gnutls.datum_t(
2441
ctypes.cast(ctypes.c_char_p(certificate),
2442
ctypes.POINTER(ctypes.c_ubyte)),
2443
ctypes.c_uint(len(certificate)))
2444
# XXX all these need to be created in the gnutls "module"
2445
# New empty GnuTLS certificate
2446
pubkey = gnutls.pubkey_t()
2447
gnutls.pubkey_init(ctypes.byref(pubkey))
2448
# Import the raw public key into the certificate
2449
gnutls.pubkey_import(pubkey,
2450
ctypes.byref(datum),
2451
gnutls.X509_FMT_DER)
2452
# New buffer for the key ID
2453
buf = ctypes.create_string_buffer(32)
2454
buf_len = ctypes.c_size_t(len(buf))
2455
# Get the key ID from the raw public key into the buffer
2456
gnutls.pubkey_get_key_id(pubkey,
2457
gnutls.KEYID_USE_SHA256,
2458
ctypes.cast(ctypes.byref(buf),
2459
ctypes.POINTER(ctypes.c_ubyte)),
2460
ctypes.byref(buf_len))
2461
# Deinit the certificate
2462
gnutls.pubkey_deinit(pubkey)
2463
2464
# Convert the buffer to a Python bytestring
2465
key_id = ctypes.string_at(buf, buf_len.value)
2466
# Convert the bytestring to hexadecimal notation
2467
hex_key_id = binascii.hexlify(key_id).upper()
2468
return hex_key_id
2469
1467
2470
1468
@staticmethod
2471
1469
def fingerprint(openpgp):
2472
1470
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2473
1471
# New GnuTLS "datum" with the OpenPGP public key
2474
datum = gnutls.datum_t(
2475
ctypes.cast(ctypes.c_char_p(openpgp),
2476
ctypes.POINTER(ctypes.c_ubyte)),
2477
ctypes.c_uint(len(openpgp)))
1472
datum = (gnutls.library.types
1473
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1474
ctypes.POINTER
1475
(ctypes.c_ubyte)),
1476
ctypes.c_uint(len(openpgp))))
2478
1477
# New empty GnuTLS certificate
2479
crt = gnutls.openpgp_crt_t()
2480
gnutls.openpgp_crt_init(ctypes.byref(crt))
1478
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1479
(gnutls.library.functions
1480
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2481
1481
# Import the OpenPGP public key into the certificate
2482
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2483
gnutls.OPENPGP_FMT_RAW)
1482
(gnutls.library.functions
1483
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1484
gnutls.library.constants
1485
.GNUTLS_OPENPGP_FMT_RAW))
2484
1486
# Verify the self signature in the key
2485
1487
crtverify = ctypes.c_uint()
2486
gnutls.openpgp_crt_verify_self(crt, 0,
2487
ctypes.byref(crtverify))
1488
(gnutls.library.functions
1489
.gnutls_openpgp_crt_verify_self(crt, 0,
1490
ctypes.byref(crtverify)))
2488
1491
if crtverify.value != 0:
2489
gnutls.openpgp_crt_deinit(crt)
2490
raise gnutls.CertificateSecurityError(code
2491
=crtverify.value)
1492
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1493
raise (gnutls.errors.CertificateSecurityError
1494
("Verify failed"))
2492
1495
# New buffer for the fingerprint
2493
1496
buf = ctypes.create_string_buffer(20)
2494
1497
buf_len = ctypes.c_size_t()
2495
1498
# Get the fingerprint from the certificate into the buffer
2496
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2497
ctypes.byref(buf_len))
1499
(gnutls.library.functions
1500
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1501
ctypes.byref(buf_len)))
2498
1502
# Deinit the certificate
2499
gnutls.openpgp_crt_deinit(crt)
1503
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2500
1504
# Convert the buffer to a Python bytestring
2501
1505
fpr = ctypes.string_at(buf, buf_len.value)
2502
1506
# Convert the bytestring to hexadecimal notation
2503
hex_fpr = binascii.hexlify(fpr).upper()
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2504
1508
return hex_fpr
2505
1509
2506
1510
2507
class MultiprocessingMixIn:
1511
class MultiprocessingMixIn(object):
2508
1512
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2509
2510
1513
def sub_process_main(self, request, address):
2511
1514
try:
2512
1515
self.finish_request(request, address)
2513
except Exception:
1516
except:
2514
1517
self.handle_error(request, address)
2515
1518
self.close_request(request)
2516
1519
2517
1520
def process_request(self, request, address):
2518
1521
"""Start a new process to process the request."""
2519
proc = multiprocessing.Process(target=self.sub_process_main,
2520
args=(request, address))
1522
proc = multiprocessing.Process(target = self.sub_process_main,
1523
args = (request,
1524
address))
2521
1525
proc.start()
2522
1526
return proc
2523
1527
2524
1528
2525
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1529
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2526
1530
""" adds a pipe to the MixIn """
2527
2528
1531
def process_request(self, request, client_address):
2529
1532
"""Overrides and wraps the original process_request().
2530
1533
2531
1534
This function creates a new pipe in self.pipe
2532
1535
"""
2533
1536
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2534
1537
2535
1538
proc = MultiprocessingMixIn.process_request(self, request,
2536
1539
client_address)
2537
1540
self.child_pipe.close()
2538
1541
self.add_pipe(parent_pipe, proc)
2539
1542
2540
1543
def add_pipe(self, parent_pipe, proc):
2541
1544
"""Dummy function; override as necessary"""
2542
raise NotImplementedError()
1545
raise NotImplementedError
2543
1546
2544
1547
2545
1548
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2546
socketserver.TCPServer):
1549
socketserver.TCPServer, object):
2547
1550
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2548
1551
2549
1552
Attributes:
2550
1553
enabled: Boolean; whether this server is activated yet
2551
1554
interface: None or a network interface name (string)
2552
1555
use_ipv6: Boolean; to use IPv6 or not
2553
1556
"""
2554
2555
1557
def __init__(self, server_address, RequestHandlerClass,
2556
interface=None,
2557
use_ipv6=True,
2558
socketfd=None):
2559
"""If socketfd is set, use that file descriptor instead of
2560
creating a new one with socket.socket().
2561
"""
1558
interface=None, use_ipv6=True):
2562
1559
self.interface = interface
2563
1560
if use_ipv6:
2564
1561
self.address_family = socket.AF_INET6
2565
if socketfd is not None:
2566
# Save the file descriptor
2567
self.socketfd = socketfd
2568
# Save the original socket.socket() function
2569
self.socket_socket = socket.socket
2570
2571
# To implement --socket, we monkey patch socket.socket.
2572
#
2573
# (When socketserver.TCPServer is a new-style class, we
2574
# could make self.socket into a property instead of monkey
2575
# patching socket.socket.)
2576
#
2577
# Create a one-time-only replacement for socket.socket()
2578
@functools.wraps(socket.socket)
2579
def socket_wrapper(*args, **kwargs):
2580
# Restore original function so subsequent calls are
2581
# not affected.
2582
socket.socket = self.socket_socket
2583
del self.socket_socket
2584
# This time only, return a new socket object from the
2585
# saved file descriptor.
2586
return socket.fromfd(self.socketfd, *args, **kwargs)
2587
# Replace socket.socket() function with wrapper
2588
socket.socket = socket_wrapper
2589
# The socketserver.TCPServer.__init__ will call
2590
# socket.socket(), which might be our replacement,
2591
# socket_wrapper(), if socketfd was set.
2592
1562
socketserver.TCPServer.__init__(self, server_address,
2593
1563
RequestHandlerClass)
2594
2595
1564
def server_bind(self):
2596
1565
"""This overrides the normal server_bind() function
2597
1566
to bind to an interface if one was specified, and also NOT to
2598
1567
bind to an address or port if they were not specified."""
2599
global SO_BINDTODEVICE
2600
1568
if self.interface is not None:
2601
1569
if SO_BINDTODEVICE is None:
2602
# Fall back to a hard-coded value which seems to be
2603
# common enough.
2604
logger.warning("SO_BINDTODEVICE not found, trying 25")
2605
SO_BINDTODEVICE = 25
2606
try:
2607
self.socket.setsockopt(
2608
socket.SOL_SOCKET, SO_BINDTODEVICE,
2609
(self.interface + "\0").encode("utf-8"))
2610
except socket.error as error:
2611
if error.errno == errno.EPERM:
2612
logger.error("No permission to bind to"
2613
" interface %s", self.interface)
2614
elif error.errno == errno.ENOPROTOOPT:
2615
logger.error("SO_BINDTODEVICE not available;"
2616
" cannot bind to interface %s",
2617
self.interface)
2618
elif error.errno == errno.ENODEV:
2619
logger.error("Interface %s does not exist,"
2620
" cannot bind", self.interface)
2621
else:
2622
raise
1570
logger.error("SO_BINDTODEVICE does not exist;"
1571
" cannot bind to interface %s",
1572
self.interface)
1573
else:
1574
try:
1575
self.socket.setsockopt(socket.SOL_SOCKET,
1576
SO_BINDTODEVICE,
1577
str(self.interface
1578
+ '\0'))
1579
except socket.error as error:
1580
if error[0] == errno.EPERM:
1581
logger.error("No permission to"
1582
" bind to interface %s",
1583
self.interface)
1584
elif error[0] == errno.ENOPROTOOPT:
1585
logger.error("SO_BINDTODEVICE not available;"
1586
" cannot bind to interface %s",
1587
self.interface)
1588
else:
1589
raise
2623
1590
# Only bind(2) the socket if we really need to.
2624
1591
if self.server_address[0] or self.server_address[1]:
2625
if self.server_address[1]:
2626
self.allow_reuse_address = True
2627
1592
if not self.server_address[0]:
2628
1593
if self.address_family == socket.AF_INET6:
2629
any_address = "::" # in6addr_any
1594
any_address = "::" # in6addr_any
2630
1595
else:
2631
any_address = "0.0.0.0" # INADDR_ANY
1596
any_address = socket.INADDR_ANY
2632
1597
self.server_address = (any_address,
2633
1598
self.server_address[1])
2634
1599
elif not self.server_address[1]:
2635
self.server_address = (self.server_address[0], 0)
1600
self.server_address = (self.server_address[0],
1601
0)
2636
1602
# if self.interface:
2637
1603
# self.server_address = (self.server_address[0],
2638
1604
# 0, # port
2644
1610
2645
1611
class MandosServer(IPv6_TCPServer):
2646
1612
"""Mandos server.
2647
1613
2648
1614
Attributes:
2649
1615
clients: set of Client objects
2650
1616
gnutls_priority GnuTLS priority string
2651
1617
use_dbus: Boolean; to emit D-Bus signals or not
2652
2653
Assumes a GLib.MainLoop event loop.
1618
1619
Assumes a gobject.MainLoop event loop.
2654
1620
"""
2655
2656
1621
def __init__(self, server_address, RequestHandlerClass,
2657
interface=None,
2658
use_ipv6=True,
2659
clients=None,
2660
gnutls_priority=None,
2661
use_dbus=True,
2662
socketfd=None):
1622
interface=None, use_ipv6=True, clients=None,
1623
gnutls_priority=None, use_dbus=True):
2663
1624
self.enabled = False
2664
1625
self.clients = clients
2665
1626
if self.clients is None:
2666
self.clients = {}
1627
self.clients = set()
2667
1628
self.use_dbus = use_dbus
2668
1629
self.gnutls_priority = gnutls_priority
2669
1630
IPv6_TCPServer.__init__(self, server_address,
2670
1631
RequestHandlerClass,
2671
interface=interface,
2672
use_ipv6=use_ipv6,
2673
socketfd=socketfd)
2674
1632
interface = interface,
1633
use_ipv6 = use_ipv6)
2675
1634
def server_activate(self):
2676
1635
if self.enabled:
2677
1636
return socketserver.TCPServer.server_activate(self)
2678
1637
2679
1638
def enable(self):
2680
1639
self.enabled = True
2681
1640
2682
1641
def add_pipe(self, parent_pipe, proc):
2683
1642
# Call "handle_ipc" for both data and EOF events
2684
GLib.io_add_watch(
2685
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2686
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2687
functools.partial(self.handle_ipc,
2688
parent_pipe=parent_pipe,
2689
proc=proc))
2690
2691
def handle_ipc(self, source, condition,
2692
parent_pipe=None,
2693
proc=None,
2694
client_object=None):
1643
gobject.io_add_watch(parent_pipe.fileno(),
1644
gobject.IO_IN | gobject.IO_HUP,
1645
functools.partial(self.handle_ipc,
1646
parent_pipe =
1647
parent_pipe,
1648
proc = proc))
1649
1650
def handle_ipc(self, source, condition, parent_pipe=None,
1651
proc = None, client_object=None):
1652
condition_names = {
1653
gobject.IO_IN: "IN", # There is data to read.
1654
gobject.IO_OUT: "OUT", # Data can be written (without
1655
# blocking).
1656
gobject.IO_PRI: "PRI", # There is urgent data to read.
1657
gobject.IO_ERR: "ERR", # Error condition.
1658
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1659
# broken, usually for pipes and
1660
# sockets).
1661
}
1662
conditions_string = ' | '.join(name
1663
for cond, name in
1664
condition_names.iteritems()
1665
if cond & condition)
2695
1666
# error, or the other end of multiprocessing.Pipe has closed
2696
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1667
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2697
1668
# Wait for other process to exit
2698
1669
proc.join()
2699
1670
return False
2700
1671
2701
1672
# Read a request from the child
2702
1673
request = parent_pipe.recv()
2703
1674
command = request[0]
2704
1675
2705
1676
if command == 'init':
2706
key_id = request[1].decode("ascii")
2707
fpr = request[2].decode("ascii")
2708
address = request[3]
2709
2710
for c in self.clients.values():
2711
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2712
continue
2713
if key_id and c.key_id == key_id:
2714
client = c
2715
break
2716
if fpr and c.fingerprint == fpr:
1677
fpr = request[1]
1678
address = request[2]
1679
1680
for c in self.clients:
1681
if c.fingerprint == fpr:
2717
1682
client = c
2718
1683
break
2719
1684
else:
2720
logger.info("Client not found for key ID: %s, address"
2721
": %s", key_id or fpr, address)
1685
logger.info("Client not found for fingerprint: %s, ad"
1686
"dress: %s", fpr, address)
2722
1687
if self.use_dbus:
2723
1688
# Emit D-Bus signal
2724
mandos_dbus_service.ClientNotFound(key_id or fpr,
1689
mandos_dbus_service.ClientNotFound(fpr,
2725
1690
address[0])
2726
1691
parent_pipe.send(False)
2727
1692
return False
2728
2729
GLib.io_add_watch(
2730
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2731
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2732
functools.partial(self.handle_ipc,
2733
parent_pipe=parent_pipe,
2734
proc=proc,
2735
client_object=client))
1693
1694
gobject.io_add_watch(parent_pipe.fileno(),
1695
gobject.IO_IN | gobject.IO_HUP,
1696
functools.partial(self.handle_ipc,
1697
parent_pipe =
1698
parent_pipe,
1699
proc = proc,
1700
client_object =
1701
client))
2736
1702
parent_pipe.send(True)
2737
1703
# remove the old hook in favor of the new above hook on
2738
1704
# same fileno
2741
1707
funcname = request[1]
2742
1708
args = request[2]
2743
1709
kwargs = request[3]
2744
1710
2745
1711
parent_pipe.send(('data', getattr(client_object,
2746
1712
funcname)(*args,
2747
**kwargs)))
2748
1713
**kwargs)))
1714
2749
1715
if command == 'getattr':
2750
1716
attrname = request[1]
2751
if isinstance(client_object.__getattribute__(attrname),
2752
collections.Callable):
2753
parent_pipe.send(('function', ))
1717
if callable(client_object.__getattribute__(attrname)):
1718
parent_pipe.send(('function',))
2754
1719
else:
2755
parent_pipe.send((
2756
'data', client_object.__getattribute__(attrname)))
2757
1720
parent_pipe.send(('data', client_object
1721
.__getattribute__(attrname)))
1722
2758
1723
if command == 'setattr':
2759
1724
attrname = request[1]
2760
1725
value = request[2]
2761
1726
setattr(client_object, attrname, value)
2762
1727
2763
1728
return True
2764
1729
2765
1730
2766
def rfc3339_duration_to_delta(duration):
2767
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2768
2769
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2770
True
2771
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2772
True
2773
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2774
True
2775
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2776
True
2777
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2778
True
2779
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2780
True
2781
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2782
True
2783
"""
2784
2785
# Parsing an RFC 3339 duration with regular expressions is not
2786
# possible - there would have to be multiple places for the same
2787
# values, like seconds. The current code, while more esoteric, is
2788
# cleaner without depending on a parsing library. If Python had a
2789
# built-in library for parsing we would use it, but we'd like to
2790
# avoid excessive use of external libraries.
2791
2792
# New type for defining tokens, syntax, and semantics all-in-one
2793
Token = collections.namedtuple("Token", (
2794
"regexp", # To match token; if "value" is not None, must have
2795
# a "group" containing digits
2796
"value", # datetime.timedelta or None
2797
"followers")) # Tokens valid after this token
2798
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2799
# the "duration" ABNF definition in RFC 3339, Appendix A.
2800
token_end = Token(re.compile(r"$"), None, frozenset())
2801
token_second = Token(re.compile(r"(\d+)S"),
2802
datetime.timedelta(seconds=1),
2803
frozenset((token_end, )))
2804
token_minute = Token(re.compile(r"(\d+)M"),
2805
datetime.timedelta(minutes=1),
2806
frozenset((token_second, token_end)))
2807
token_hour = Token(re.compile(r"(\d+)H"),
2808
datetime.timedelta(hours=1),
2809
frozenset((token_minute, token_end)))
2810
token_time = Token(re.compile(r"T"),
2811
None,
2812
frozenset((token_hour, token_minute,
2813
token_second)))
2814
token_day = Token(re.compile(r"(\d+)D"),
2815
datetime.timedelta(days=1),
2816
frozenset((token_time, token_end)))
2817
token_month = Token(re.compile(r"(\d+)M"),
2818
datetime.timedelta(weeks=4),
2819
frozenset((token_day, token_end)))
2820
token_year = Token(re.compile(r"(\d+)Y"),
2821
datetime.timedelta(weeks=52),
2822
frozenset((token_month, token_end)))
2823
token_week = Token(re.compile(r"(\d+)W"),
2824
datetime.timedelta(weeks=1),
2825
frozenset((token_end, )))
2826
token_duration = Token(re.compile(r"P"), None,
2827
frozenset((token_year, token_month,
2828
token_day, token_time,
2829
token_week)))
2830
# Define starting values:
2831
# Value so far
2832
value = datetime.timedelta()
2833
found_token = None
2834
# Following valid tokens
2835
followers = frozenset((token_duration, ))
2836
# String left to parse
2837
s = duration
2838
# Loop until end token is found
2839
while found_token is not token_end:
2840
# Search for any currently valid tokens
2841
for token in followers:
2842
match = token.regexp.match(s)
2843
if match is not None:
2844
# Token found
2845
if token.value is not None:
2846
# Value found, parse digits
2847
factor = int(match.group(1), 10)
2848
# Add to value so far
2849
value += factor * token.value
2850
# Strip token from string
2851
s = token.regexp.sub("", s, 1)
2852
# Go to found token
2853
found_token = token
2854
# Set valid next tokens
2855
followers = found_token.followers
2856
break
2857
else:
2858
# No currently valid tokens were found
2859
raise ValueError("Invalid RFC 3339 duration: {!r}"
2860
.format(duration))
2861
# End token found
2862
return value
2863
2864
2865
1731
def string_to_delta(interval):
2866
1732
"""Parse a string and return a datetime.timedelta
2867
2868
>>> string_to_delta('7d') == datetime.timedelta(7)
2869
True
2870
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2871
True
2872
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2873
True
2874
>>> string_to_delta('24h') == datetime.timedelta(1)
2875
True
2876
>>> string_to_delta('1w') == datetime.timedelta(7)
2877
True
2878
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2879
True
1733
1734
>>> string_to_delta('7d')
1735
datetime.timedelta(7)
1736
>>> string_to_delta('60s')
1737
datetime.timedelta(0, 60)
1738
>>> string_to_delta('60m')
1739
datetime.timedelta(0, 3600)
1740
>>> string_to_delta('24h')
1741
datetime.timedelta(1)
1742
>>> string_to_delta('1w')
1743
datetime.timedelta(7)
1744
>>> string_to_delta('5m 30s')
1745
datetime.timedelta(0, 330)
2880
1746
"""
2881
2882
try:
2883
return rfc3339_duration_to_delta(interval)
2884
except ValueError:
2885
pass
2886
2887
1747
timevalue = datetime.timedelta(0)
2888
1748
for s in interval.split():
2889
1749
try:
2890
suffix = s[-1]
1750
suffix = unicode(s[-1])
2891
1751
value = int(s[:-1])
2892
1752
if suffix == "d":
2893
1753
delta = datetime.timedelta(value)
2900
1760
elif suffix == "w":
2901
1761
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2902
1762
else:
2903
raise ValueError("Unknown suffix {!r}".format(suffix))
2904
except IndexError as e:
1763
raise ValueError("Unknown suffix %r" % suffix)
1764
except (ValueError, IndexError) as e:
2905
1765
raise ValueError(*(e.args))
2906
1766
timevalue += delta
2907
1767
return timevalue
2908
1768
2909
1769
2910
def daemon(nochdir=False, noclose=False):
1770
def if_nametoindex(interface):
1771
"""Call the C function if_nametoindex(), or equivalent
1772
1773
Note: This function cannot accept a unicode string."""
1774
global if_nametoindex
1775
try:
1776
if_nametoindex = (ctypes.cdll.LoadLibrary
1777
(ctypes.util.find_library("c"))
1778
.if_nametoindex)
1779
except (OSError, AttributeError):
1780
logger.warning("Doing if_nametoindex the hard way")
1781
def if_nametoindex(interface):
1782
"Get an interface index the hard way, i.e. using fcntl()"
1783
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1784
with contextlib.closing(socket.socket()) as s:
1785
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1786
struct.pack(str("16s16x"),
1787
interface))
1788
interface_index = struct.unpack(str("I"),
1789
ifreq[16:20])[0]
1790
return interface_index
1791
return if_nametoindex(interface)
1792
1793
1794
def daemon(nochdir = False, noclose = False):
2911
1795
"""See daemon(3). Standard BSD Unix function.
2912
1796
2913
1797
This should really exist as os.daemon, but it doesn't (yet)."""
2914
1798
if os.fork():
2915
1799
sys.exit()
2920
1804
sys.exit()
2921
1805
if not noclose:
2922
1806
# Close all standard open file descriptors
2923
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1807
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2924
1808
if not stat.S_ISCHR(os.fstat(null).st_mode):
2925
1809
raise OSError(errno.ENODEV,
2926
"{} not a character device"
2927
.format(os.devnull))
1810
"%s not a character device"
1811
% os.path.devnull)
2928
1812
os.dup2(null, sys.stdin.fileno())
2929
1813
os.dup2(null, sys.stdout.fileno())
2930
1814
os.dup2(null, sys.stderr.fileno())
2933
1817
2934
1818
2935
1819
def main():
2936
1820
2937
1821
##################################################################
2938
1822
# Parsing of options, both command line and config file
2939
1823
2940
1824
parser = argparse.ArgumentParser()
2941
1825
parser.add_argument("-v", "--version", action="version",
2942
version="%(prog)s {}".format(version),
1826
version = "%%(prog)s %s" % version,
2943
1827
help="show version number and exit")
2944
1828
parser.add_argument("-i", "--interface", metavar="IF",
2945
1829
help="Bind to interface IF")
2951
1835
help="Run self-test")
2952
1836
parser.add_argument("--debug", action="store_true",
2953
1837
help="Debug mode; run in foreground and log"
2954
" to terminal", default=None)
1838
" to terminal")
2955
1839
parser.add_argument("--debuglevel", metavar="LEVEL",
2956
1840
help="Debug level for stdout output")
2957
1841
parser.add_argument("--priority", help="GnuTLS"
2964
1848
" files")
2965
1849
parser.add_argument("--no-dbus", action="store_false",
2966
1850
dest="use_dbus", help="Do not provide D-Bus"
2967
" system bus interface", default=None)
1851
" system bus interface")
2968
1852
parser.add_argument("--no-ipv6", action="store_false",
2969
dest="use_ipv6", help="Do not use IPv6",
2970
default=None)
2971
parser.add_argument("--no-restore", action="store_false",
2972
dest="restore", help="Do not restore stored"
2973
" state", default=None)
2974
parser.add_argument("--socket", type=int,
2975
help="Specify a file descriptor to a network"
2976
" socket to use instead of creating one")
2977
parser.add_argument("--statedir", metavar="DIR",
2978
help="Directory to save/restore state in")
2979
parser.add_argument("--foreground", action="store_true",
2980
help="Run in foreground", default=None)
2981
parser.add_argument("--no-zeroconf", action="store_false",
2982
dest="zeroconf", help="Do not use Zeroconf",
2983
default=None)
2984
1853
dest="use_ipv6", help="Do not use IPv6")
2985
1854
options = parser.parse_args()
2986
1855
1856
if options.check:
1857
import doctest
1858
doctest.testmod()
1859
sys.exit()
1860
2987
1861
# Default values for config file for server-global settings
2988
if gnutls.has_rawpk:
2989
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2990
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2991
else:
2992
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2993
":+SIGN-DSA-SHA256")
2994
server_defaults = {"interface": "",
2995
"address": "",
2996
"port": "",
2997
"debug": "False",
2998
"priority": priority,
2999
"servicename": "Mandos",
3000
"use_dbus": "True",
3001
"use_ipv6": "True",
3002
"debuglevel": "",
3003
"restore": "True",
3004
"socket": "",
3005
"statedir": "/var/lib/mandos",
3006
"foreground": "False",
3007
"zeroconf": "True",
3008
}
3009
del priority
3010
1862
server_defaults = { "interface": "",
1863
"address": "",
1864
"port": "",
1865
"debug": "False",
1866
"priority":
1867
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1868
"servicename": "Mandos",
1869
"use_dbus": "True",
1870
"use_ipv6": "True",
1871
"debuglevel": "",
1872
}
1873
3011
1874
# Parse config file for server-global settings
3012
server_config = configparser.ConfigParser(server_defaults)
1875
server_config = configparser.SafeConfigParser(server_defaults)
3013
1876
del server_defaults
3014
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3015
# Convert the ConfigParser object to a dict
1877
server_config.read(os.path.join(options.configdir,
1878
"mandos.conf"))
1879
# Convert the SafeConfigParser object to a dict
3016
1880
server_settings = server_config.defaults()
3017
1881
# Use the appropriate methods on the non-string config options
3018
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3019
"foreground", "zeroconf"):
1882
for option in ("debug", "use_dbus", "use_ipv6"):
3020
1883
server_settings[option] = server_config.getboolean("DEFAULT",
3021
1884
option)
3022
1885
if server_settings["port"]:
3023
1886
server_settings["port"] = server_config.getint("DEFAULT",
3024
1887
"port")
3025
if server_settings["socket"]:
3026
server_settings["socket"] = server_config.getint("DEFAULT",
3027
"socket")
3028
# Later, stdin will, and stdout and stderr might, be dup'ed
3029
# over with an opened os.devnull. But we don't want this to
3030
# happen with a supplied network socket.
3031
if 0 <= server_settings["socket"] <= 2:
3032
server_settings["socket"] = os.dup(server_settings
3033
["socket"])
3034
1888
del server_config
3035
1889
3036
1890
# Override the settings from the config file with command line
3037
1891
# options, if set.
3038
1892
for option in ("interface", "address", "port", "debug",
3039
"priority", "servicename", "configdir", "use_dbus",
3040
"use_ipv6", "debuglevel", "restore", "statedir",
3041
"socket", "foreground", "zeroconf"):
1893
"priority", "servicename", "configdir",
1894
"use_dbus", "use_ipv6", "debuglevel"):
3042
1895
value = getattr(options, option)
3043
1896
if value is not None:
3044
1897
server_settings[option] = value
3045
1898
del options
3046
1899
# Force all strings to be unicode
3047
1900
for option in server_settings.keys():
3048
if isinstance(server_settings[option], bytes):
3049
server_settings[option] = (server_settings[option]
3050
.decode("utf-8"))
3051
# Force all boolean options to be boolean
3052
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3053
"foreground", "zeroconf"):
3054
server_settings[option] = bool(server_settings[option])
3055
# Debug implies foreground
3056
if server_settings["debug"]:
3057
server_settings["foreground"] = True
1901
if type(server_settings[option]) is str:
1902
server_settings[option] = unicode(server_settings[option])
3058
1903
# Now we have our good server settings in "server_settings"
3059
1904
3060
1905
##################################################################
3061
3062
if (not server_settings["zeroconf"]
3063
and not (server_settings["port"]
3064
or server_settings["socket"] != "")):
3065
parser.error("Needs port or socket to work without Zeroconf")
3066
1906
3067
1907
# For convenience
3068
1908
debug = server_settings["debug"]
3069
1909
debuglevel = server_settings["debuglevel"]
3070
1910
use_dbus = server_settings["use_dbus"]
3071
1911
use_ipv6 = server_settings["use_ipv6"]
3072
stored_state_path = os.path.join(server_settings["statedir"],
3073
stored_state_file)
3074
foreground = server_settings["foreground"]
3075
zeroconf = server_settings["zeroconf"]
3076
3077
if debug:
3078
initlogger(debug, logging.DEBUG)
3079
else:
3080
if not debuglevel:
3081
initlogger(debug)
3082
else:
3083
level = getattr(logging, debuglevel.upper())
3084
initlogger(debug, level)
3085
1912
3086
1913
if server_settings["servicename"] != "Mandos":
3087
syslogger.setFormatter(
3088
logging.Formatter('Mandos ({}) [%(process)d]:'
3089
' %(levelname)s: %(message)s'.format(
3090
server_settings["servicename"])))
3091
1914
syslogger.setFormatter(logging.Formatter
1915
('Mandos (%s) [%%(process)d]:'
1916
' %%(levelname)s: %%(message)s'
1917
% server_settings["servicename"]))
1918
3092
1919
# Parse config file with clients
3093
client_config = configparser.ConfigParser(Client.client_defaults)
1920
client_defaults = { "timeout": "5m",
1921
"extended_timeout": "15m",
1922
"interval": "2m",
1923
"checker": "fping -q -- %%(host)s",
1924
"host": "",
1925
"approval_delay": "0s",
1926
"approval_duration": "1s",
1927
}
1928
client_config = configparser.SafeConfigParser(client_defaults)
3094
1929
client_config.read(os.path.join(server_settings["configdir"],
3095
1930
"clients.conf"))
3096
1931
3097
1932
global mandos_dbus_service
3098
1933
mandos_dbus_service = None
3099
3100
socketfd = None
3101
if server_settings["socket"] != "":
3102
socketfd = server_settings["socket"]
3103
tcp_server = MandosServer(
3104
(server_settings["address"], server_settings["port"]),
3105
ClientHandler,
3106
interface=(server_settings["interface"] or None),
3107
use_ipv6=use_ipv6,
3108
gnutls_priority=server_settings["priority"],
3109
use_dbus=use_dbus,
3110
socketfd=socketfd)
3111
if not foreground:
3112
pidfilename = "/run/mandos.pid"
3113
if not os.path.isdir("/run/."):
3114
pidfilename = "/var/run/mandos.pid"
3115
pidfile = None
3116
try:
3117
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3118
except IOError as e:
3119
logger.error("Could not open file %r", pidfilename,
3120
exc_info=e)
3121
3122
for name, group in (("_mandos", "_mandos"),
3123
("mandos", "mandos"),
3124
("nobody", "nogroup")):
3125
try:
3126
uid = pwd.getpwnam(name).pw_uid
3127
gid = pwd.getpwnam(group).pw_gid
3128
break
1934
1935
tcp_server = MandosServer((server_settings["address"],
1936
server_settings["port"]),
1937
ClientHandler,
1938
interface=(server_settings["interface"]
1939
or None),
1940
use_ipv6=use_ipv6,
1941
gnutls_priority=
1942
server_settings["priority"],
1943
use_dbus=use_dbus)
1944
if not debug:
1945
pidfilename = "/var/run/mandos.pid"
1946
try:
1947
pidfile = open(pidfilename, "w")
1948
except IOError:
1949
logger.error("Could not open file %r", pidfilename)
1950
1951
try:
1952
uid = pwd.getpwnam("_mandos").pw_uid
1953
gid = pwd.getpwnam("_mandos").pw_gid
1954
except KeyError:
1955
try:
1956
uid = pwd.getpwnam("mandos").pw_uid
1957
gid = pwd.getpwnam("mandos").pw_gid
3129
1958
except KeyError:
3130
continue
3131
else:
3132
uid = 65534
3133
gid = 65534
1959
try:
1960
uid = pwd.getpwnam("nobody").pw_uid
1961
gid = pwd.getpwnam("nobody").pw_gid
1962
except KeyError:
1963
uid = 65534
1964
gid = 65534
3134
1965
try:
3135
1966
os.setgid(gid)
3136
1967
os.setuid(uid)
3137
if debug:
3138
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3139
gid))
3140
1968
except OSError as error:
3141
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3142
.format(uid, gid, os.strerror(error.errno)))
3143
if error.errno != errno.EPERM:
3144
raise
3145
1969
if error[0] != errno.EPERM:
1970
raise error
1971
1972
if not debug and not debuglevel:
1973
syslogger.setLevel(logging.WARNING)
1974
console.setLevel(logging.WARNING)
1975
if debuglevel:
1976
level = getattr(logging, debuglevel.upper())
1977
syslogger.setLevel(level)
1978
console.setLevel(level)
1979
3146
1980
if debug:
3147
1981
# Enable all possible GnuTLS debugging
3148
1982
3149
1983
# "Use a log level over 10 to enable all debugging options."
3150
1984
# - GnuTLS manual
3151
gnutls.global_set_log_level(11)
3152
3153
@gnutls.log_func
1985
gnutls.library.functions.gnutls_global_set_log_level(11)
1986
1987
@gnutls.library.types.gnutls_log_func
3154
1988
def debug_gnutls(level, string):
3155
1989
logger.debug("GnuTLS: %s", string[:-1])
3156
3157
gnutls.global_set_log_function(debug_gnutls)
3158
1990
1991
(gnutls.library.functions
1992
.gnutls_global_set_log_function(debug_gnutls))
1993
3159
1994
# Redirect stdin so all checkers get /dev/null
3160
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1995
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3161
1996
os.dup2(null, sys.stdin.fileno())
3162
1997
if null > 2:
3163
1998
os.close(null)
3164
1999
else:
2000
# No console logging
2001
logger.removeHandler(console)
2002
3165
2003
# Need to fork before connecting to D-Bus
3166
if not foreground:
2004
if not debug:
3167
2005
# Close all input and output, do double fork, etc.
3168
2006
daemon()
3169
3170
if gi.version_info < (3, 10, 2):
3171
# multiprocessing will use threads, so before we use GLib we
3172
# need to inform GLib that threads will be used.
3173
GLib.threads_init()
3174
2007
3175
2008
global main_loop
3176
2009
# From the Avahi example code
3177
DBusGMainLoop(set_as_default=True)
3178
main_loop = GLib.MainLoop()
2010
DBusGMainLoop(set_as_default=True )
2011
main_loop = gobject.MainLoop()
3179
2012
bus = dbus.SystemBus()
3180
2013
# End of Avahi example code
3181
2014
if use_dbus:
3182
2015
try:
3183
2016
bus_name = dbus.service.BusName("se.recompile.Mandos",
3184
bus,
3185
do_not_queue=True)
3186
old_bus_name = dbus.service.BusName(
3187
"se.bsnet.fukt.Mandos", bus,
3188
do_not_queue=True)
3189
except dbus.exceptions.DBusException as e:
3190
logger.error("Disabling D-Bus:", exc_info=e)
2017
bus, do_not_queue=True)
2018
old_bus_name = (dbus.service.BusName
2019
("se.bsnet.fukt.Mandos", bus,
2020
do_not_queue=True))
2021
except dbus.exceptions.NameExistsException as e:
2022
logger.error(unicode(e) + ", disabling D-Bus")
3191
2023
use_dbus = False
3192
2024
server_settings["use_dbus"] = False
3193
2025
tcp_server.use_dbus = False
3194
if zeroconf:
3195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3196
service = AvahiServiceToSyslog(
3197
name=server_settings["servicename"],
3198
servicetype="_mandos._tcp",
3199
protocol=protocol,
3200
bus=bus)
3201
if server_settings["interface"]:
3202
service.interface = if_nametoindex(
3203
server_settings["interface"].encode("utf-8"))
3204
2026
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2027
service = AvahiService(name = server_settings["servicename"],
2028
servicetype = "_mandos._tcp",
2029
protocol = protocol, bus = bus)
2030
if server_settings["interface"]:
2031
service.interface = (if_nametoindex
2032
(str(server_settings["interface"])))
2033
3205
2034
global multiprocessing_manager
3206
2035
multiprocessing_manager = multiprocessing.Manager()
3207
2036
3208
2037
client_class = Client
3209
2038
if use_dbus:
3210
client_class = functools.partial(ClientDBus, bus=bus)
3211
3212
client_settings = Client.config_parser(client_config)
3213
old_client_settings = {}
3214
clients_data = {}
3215
3216
# This is used to redirect stdout and stderr for checker processes
3217
global wnull
3218
wnull = open(os.devnull, "w") # A writable /dev/null
3219
# Only used if server is running in foreground but not in debug
3220
# mode
3221
if debug or not foreground:
3222
wnull.close()
3223
3224
# Get client data and settings from last running state.
3225
if server_settings["restore"]:
3226
try:
3227
with open(stored_state_path, "rb") as stored_state:
3228
if sys.version_info.major == 2:
3229
clients_data, old_client_settings = pickle.load(
3230
stored_state)
3231
else:
3232
bytes_clients_data, bytes_old_client_settings = (
3233
pickle.load(stored_state, encoding="bytes"))
3234
# Fix bytes to strings
3235
# clients_data
3236
# .keys()
3237
clients_data = {(key.decode("utf-8")
3238
if isinstance(key, bytes)
3239
else key): value
3240
for key, value in
3241
bytes_clients_data.items()}
3242
del bytes_clients_data
3243
for key in clients_data:
3244
value = {(k.decode("utf-8")
3245
if isinstance(k, bytes) else k): v
3246
for k, v in
3247
clients_data[key].items()}
3248
clients_data[key] = value
3249
# .client_structure
3250
value["client_structure"] = [
3251
(s.decode("utf-8")
3252
if isinstance(s, bytes)
3253
else s) for s in
3254
value["client_structure"]]
3255
# .name, .host, and .checker_command
3256
for k in ("name", "host", "checker_command"):
3257
if isinstance(value[k], bytes):
3258
value[k] = value[k].decode("utf-8")
3259
if "key_id" not in value:
3260
value["key_id"] = ""
3261
elif "fingerprint" not in value:
3262
value["fingerprint"] = ""
3263
# old_client_settings
3264
# .keys()
3265
old_client_settings = {
3266
(key.decode("utf-8")
3267
if isinstance(key, bytes)
3268
else key): value
3269
for key, value in
3270
bytes_old_client_settings.items()}
3271
del bytes_old_client_settings
3272
# .host and .checker_command
3273
for value in old_client_settings.values():
3274
for attribute in ("host", "checker_command"):
3275
if isinstance(value[attribute], bytes):
3276
value[attribute] = (value[attribute]
3277
.decode("utf-8"))
3278
os.remove(stored_state_path)
3279
except IOError as e:
3280
if e.errno == errno.ENOENT:
3281
logger.warning("Could not load persistent state:"
3282
" {}".format(os.strerror(e.errno)))
3283
else:
3284
logger.critical("Could not load persistent state:",
3285
exc_info=e)
3286
raise
3287
except EOFError as e:
3288
logger.warning("Could not load persistent state: "
3289
"EOFError:",
3290
exc_info=e)
3291
3292
with PGPEngine() as pgp:
3293
for client_name, client in clients_data.items():
3294
# Skip removed clients
3295
if client_name not in client_settings:
3296
continue
3297
3298
# Decide which value to use after restoring saved state.
3299
# We have three different values: Old config file,
3300
# new config file, and saved state.
3301
# New config value takes precedence if it differs from old
3302
# config value, otherwise use saved state.
3303
for name, value in client_settings[client_name].items():
3304
try:
3305
# For each value in new config, check if it
3306
# differs from the old config value (Except for
3307
# the "secret" attribute)
3308
if (name != "secret"
3309
and (value !=
3310
old_client_settings[client_name][name])):
3311
client[name] = value
3312
except KeyError:
3313
pass
3314
3315
# Clients who has passed its expire date can still be
3316
# enabled if its last checker was successful. A Client
3317
# whose checker succeeded before we stored its state is
3318
# assumed to have successfully run all checkers during
3319
# downtime.
3320
if client["enabled"]:
3321
if datetime.datetime.utcnow() >= client["expires"]:
3322
if not client["last_checked_ok"]:
3323
logger.warning(
3324
"disabling client {} - Client never "
3325
"performed a successful checker".format(
3326
client_name))
3327
client["enabled"] = False
3328
elif client["last_checker_status"] != 0:
3329
logger.warning(
3330
"disabling client {} - Client last"
3331
" checker failed with error code"
3332
" {}".format(
3333
client_name,
3334
client["last_checker_status"]))
3335
client["enabled"] = False
3336
else:
3337
client["expires"] = (
3338
datetime.datetime.utcnow()
3339
+ client["timeout"])
3340
logger.debug("Last checker succeeded,"
3341
" keeping {} enabled".format(
3342
client_name))
2039
client_class = functools.partial(ClientDBusTransitional,
2040
bus = bus)
2041
def client_config_items(config, section):
2042
special_settings = {
2043
"approved_by_default":
2044
lambda: config.getboolean(section,
2045
"approved_by_default"),
2046
}
2047
for name, value in config.items(section):
3343
2048
try:
3344
client["secret"] = pgp.decrypt(
3345
client["encrypted_secret"],
3346
client_settings[client_name]["secret"])
3347
except PGPError:
3348
# If decryption fails, we use secret from new settings
3349
logger.debug("Failed to decrypt {} old secret".format(
3350
client_name))
3351
client["secret"] = (client_settings[client_name]
3352
["secret"])
3353
3354
# Add/remove clients based on new changes made to config
3355
for client_name in (set(old_client_settings)
3356
- set(client_settings)):
3357
del clients_data[client_name]
3358
for client_name in (set(client_settings)
3359
- set(old_client_settings)):
3360
clients_data[client_name] = client_settings[client_name]
3361
3362
# Create all client objects
3363
for client_name, client in clients_data.items():
3364
tcp_server.clients[client_name] = client_class(
3365
name=client_name,
3366
settings=client,
3367
server_settings=server_settings)
3368
2049
yield (name, special_settings[name]())
2050
except KeyError:
2051
yield (name, value)
2052
2053
tcp_server.clients.update(set(
2054
client_class(name = section,
2055
config= dict(client_config_items(
2056
client_config, section)))
2057
for section in client_config.sections()))
3369
2058
if not tcp_server.clients:
3370
2059
logger.warning("No clients defined")
3371
3372
if not foreground:
3373
if pidfile is not None:
3374
pid = os.getpid()
3375
try:
3376
with pidfile:
3377
print(pid, file=pidfile)
3378
except IOError:
3379
logger.error("Could not write to file %r with PID %d",
3380
pidfilename, pid)
3381
del pidfile
2060
2061
if not debug:
2062
try:
2063
with pidfile:
2064
pid = os.getpid()
2065
pidfile.write(str(pid) + "\n".encode("utf-8"))
2066
del pidfile
2067
except IOError:
2068
logger.error("Could not write to file %r with PID %d",
2069
pidfilename, pid)
2070
except NameError:
2071
# "pidfile" was never created
2072
pass
3382
2073
del pidfilename
3383
3384
for termsig in (signal.SIGHUP, signal.SIGTERM):
3385
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3386
lambda: main_loop.quit() and False)
3387
2074
2075
signal.signal(signal.SIGINT, signal.SIG_IGN)
2076
2077
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2078
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2079
3388
2080
if use_dbus:
3389
3390
@alternate_dbus_interfaces(
3391
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3392
class MandosDBusService(DBusObjectWithObjectManager):
2081
class MandosDBusService(dbus.service.Object):
3393
2082
"""A D-Bus proxy object"""
3394
3395
2083
def __init__(self):
3396
2084
dbus.service.Object.__init__(self, bus, "/")
3397
3398
2085
_interface = "se.recompile.Mandos"
3399
2086
3400
2087
@dbus.service.signal(_interface, signature="o")
3401
2088
def ClientAdded(self, objpath):
3402
2089
"D-Bus signal"
3403
2090
pass
3404
2091
3405
2092
@dbus.service.signal(_interface, signature="ss")
3406
def ClientNotFound(self, key_id, address):
2093
def ClientNotFound(self, fingerprint, address):
3407
2094
"D-Bus signal"
3408
2095
pass
3409
3410
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3411
"true"})
2096
3412
2097
@dbus.service.signal(_interface, signature="os")
3413
2098
def ClientRemoved(self, objpath, name):
3414
2099
"D-Bus signal"
3415
2100
pass
3416
3417
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3418
"true"})
2101
3419
2102
@dbus.service.method(_interface, out_signature="ao")
3420
2103
def GetAllClients(self):
3421
2104
"D-Bus method"
3422
return dbus.Array(c.dbus_object_path for c in
3423
tcp_server.clients.values())
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2105
return dbus.Array(c.dbus_object_path
2106
for c in tcp_server.clients)
2107
3427
2108
@dbus.service.method(_interface,
3428
2109
out_signature="a{oa{sv}}")
3429
2110
def GetAllClientsWithProperties(self):
3430
2111
"D-Bus method"
3431
2112
return dbus.Dictionary(
3432
{c.dbus_object_path: c.GetAll(
3433
"se.recompile.Mandos.Client")
3434
for c in tcp_server.clients.values()},
2113
((c.dbus_object_path, c.GetAll(""))
2114
for c in tcp_server.clients),
3435
2115
signature="oa{sv}")
3436
2116
3437
2117
@dbus.service.method(_interface, in_signature="o")
3438
2118
def RemoveClient(self, object_path):
3439
2119
"D-Bus method"
3440
for c in tcp_server.clients.values():
2120
for c in tcp_server.clients:
3441
2121
if c.dbus_object_path == object_path:
3442
del tcp_server.clients[c.name]
2122
tcp_server.clients.remove(c)
3443
2123
c.remove_from_connection()
3444
# Don't signal the disabling
2124
# Don't signal anything except ClientRemoved
3445
2125
c.disable(quiet=True)
3446
# Emit D-Bus signal for removal
3447
self.client_removed_signal(c)
2126
# Emit D-Bus signal
2127
self.ClientRemoved(object_path, c.name)
3448
2128
return
3449
2129
raise KeyError(object_path)
3450
2130
3451
2131
del _interface
3452
3453
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3454
out_signature="a{oa{sa{sv}}}")
3455
def GetManagedObjects(self):
3456
"""D-Bus method"""
3457
return dbus.Dictionary(
3458
{client.dbus_object_path:
3459
dbus.Dictionary(
3460
{interface: client.GetAll(interface)
3461
for interface in
3462
client._get_all_interface_names()})
3463
for client in tcp_server.clients.values()})
3464
3465
def client_added_signal(self, client):
3466
"""Send the new standard signal and the old signal"""
3467
if use_dbus:
3468
# New standard signal
3469
self.InterfacesAdded(
3470
client.dbus_object_path,
3471
dbus.Dictionary(
3472
{interface: client.GetAll(interface)
3473
for interface in
3474
client._get_all_interface_names()}))
3475
# Old signal
3476
self.ClientAdded(client.dbus_object_path)
3477
3478
def client_removed_signal(self, client):
3479
"""Send the new standard signal and the old signal"""
3480
if use_dbus:
3481
# New standard signal
3482
self.InterfacesRemoved(
3483
client.dbus_object_path,
3484
client._get_all_interface_names())
3485
# Old signal
3486
self.ClientRemoved(client.dbus_object_path,
3487
client.name)
3488
3489
mandos_dbus_service = MandosDBusService()
3490
3491
# Save modules to variables to exempt the modules from being
3492
# unloaded before the function registered with atexit() is run.
3493
mp = multiprocessing
3494
wn = wnull
3495
2132
2133
class MandosDBusServiceTransitional(MandosDBusService):
2134
__metaclass__ = AlternateDBusNamesMetaclass
2135
mandos_dbus_service = MandosDBusServiceTransitional()
2136
3496
2137
def cleanup():
3497
2138
"Cleanup function; run on exit"
3498
if zeroconf:
3499
service.cleanup()
3500
3501
mp.active_children()
3502
wn.close()
3503
if not (tcp_server.clients or client_settings):
3504
return
3505
3506
# Store client before exiting. Secrets are encrypted with key
3507
# based on what config file has. If config file is
3508
# removed/edited, old secret will thus be unrecovable.
3509
clients = {}
3510
with PGPEngine() as pgp:
3511
for client in tcp_server.clients.values():
3512
key = client_settings[client.name]["secret"]
3513
client.encrypted_secret = pgp.encrypt(client.secret,
3514
key)
3515
client_dict = {}
3516
3517
# A list of attributes that can not be pickled
3518
# + secret.
3519
exclude = {"bus", "changedstate", "secret",
3520
"checker", "server_settings"}
3521
for name, typ in inspect.getmembers(dbus.service
3522
.Object):
3523
exclude.add(name)
3524
3525
client_dict["encrypted_secret"] = (client
3526
.encrypted_secret)
3527
for attr in client.client_structure:
3528
if attr not in exclude:
3529
client_dict[attr] = getattr(client, attr)
3530
3531
clients[client.name] = client_dict
3532
del client_settings[client.name]["secret"]
3533
3534
try:
3535
with tempfile.NamedTemporaryFile(
3536
mode='wb',
3537
suffix=".pickle",
3538
prefix='clients-',
3539
dir=os.path.dirname(stored_state_path),
3540
delete=False) as stored_state:
3541
pickle.dump((clients, client_settings), stored_state,
3542
protocol=2)
3543
tempname = stored_state.name
3544
os.rename(tempname, stored_state_path)
3545
except (IOError, OSError) as e:
3546
if not debug:
3547
try:
3548
os.remove(tempname)
3549
except NameError:
3550
pass
3551
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3552
logger.warning("Could not save persistent state: {}"
3553
.format(os.strerror(e.errno)))
3554
else:
3555
logger.warning("Could not save persistent state:",
3556
exc_info=e)
3557
raise
3558
3559
# Delete all clients, and settings from config
2139
service.cleanup()
2140
2141
multiprocessing.active_children()
3560
2142
while tcp_server.clients:
3561
name, client = tcp_server.clients.popitem()
2143
client = tcp_server.clients.pop()
3562
2144
if use_dbus:
3563
2145
client.remove_from_connection()
3564
# Don't signal the disabling
2146
client.disable_hook = None
2147
# Don't signal anything except ClientRemoved
3565
2148
client.disable(quiet=True)
3566
# Emit D-Bus signal for removal
3567
2149
if use_dbus:
3568
mandos_dbus_service.client_removed_signal(client)
3569
client_settings.clear()
3570
2150
# Emit D-Bus signal
2151
mandos_dbus_service.ClientRemoved(client
2152
.dbus_object_path,
2153
client.name)
2154
3571
2155
atexit.register(cleanup)
3572
3573
for client in tcp_server.clients.values():
2156
2157
for client in tcp_server.clients:
3574
2158
if use_dbus:
3575
# Emit D-Bus signal for adding
3576
mandos_dbus_service.client_added_signal(client)
3577
# Need to initiate checking of clients
3578
if client.enabled:
3579
client.init_checker()
3580
2159
# Emit D-Bus signal
2160
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2161
client.enable()
2162
3581
2163
tcp_server.enable()
3582
2164
tcp_server.server_activate()
3583
2165
3584
2166
# Find out what port we got
3585
if zeroconf:
3586
service.port = tcp_server.socket.getsockname()[1]
2167
service.port = tcp_server.socket.getsockname()[1]
3587
2168
if use_ipv6:
3588
2169
logger.info("Now listening on address %r, port %d,"
3589
" flowinfo %d, scope_id %d",
3590
*tcp_server.socket.getsockname())
2170
" flowinfo %d, scope_id %d"
2171
% tcp_server.socket.getsockname())
3591
2172
else: # IPv4
3592
logger.info("Now listening on address %r, port %d",
3593
*tcp_server.socket.getsockname())
3594
3595
# service.interface = tcp_server.socket.getsockname()[3]
3596
2173
logger.info("Now listening on address %r, port %d"
2174
% tcp_server.socket.getsockname())
2175
2176
#service.interface = tcp_server.socket.getsockname()[3]
2177
3597
2178
try:
3598
if zeroconf:
3599
# From the Avahi example code
3600
try:
3601
service.activate()
3602
except dbus.exceptions.DBusException as error:
3603
logger.critical("D-Bus Exception", exc_info=error)
3604
cleanup()
3605
sys.exit(1)
3606
# End of Avahi example code
3607
3608
GLib.io_add_watch(
3609
GLib.IOChannel.unix_new(tcp_server.fileno()),
3610
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3611
lambda *args, **kwargs: (tcp_server.handle_request
3612
(*args[2:], **kwargs) or True))
3613
2179
# From the Avahi example code
2180
try:
2181
service.activate()
2182
except dbus.exceptions.DBusException as error:
2183
logger.critical("DBusException: %s", error)
2184
cleanup()
2185
sys.exit(1)
2186
# End of Avahi example code
2187
2188
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2189
lambda *args, **kwargs:
2190
(tcp_server.handle_request
2191
(*args[2:], **kwargs) or True))
2192
3614
2193
logger.debug("Starting main loop")
3615
2194
main_loop.run()
3616
2195
except AvahiError as error:
3617
logger.critical("Avahi Error", exc_info=error)
2196
logger.critical("AvahiError: %s", error)
3618
2197
cleanup()
3619
2198
sys.exit(1)
3620
2199
except KeyboardInterrupt:
3625
2204
# Must run before the D-Bus bus name gets deregistered
3626
2205
cleanup()
3627
2206
3628
3629
def should_only_run_tests():
3630
parser = argparse.ArgumentParser(add_help=False)
3631
parser.add_argument("--check", action='store_true')
3632
args, unknown_args = parser.parse_known_args()
3633
run_tests = args.check
3634
if run_tests:
3635
# Remove --check argument from sys.argv
3636
sys.argv[1:] = unknown_args
3637
return run_tests
3638
3639
# Add all tests from doctest strings
3640
def load_tests(loader, tests, none):
3641
import doctest
3642
tests.addTests(doctest.DocTestSuite())
3643
return tests
3644
2207
3645
2208
if __name__ == '__main__':
3646
try:
3647
if should_only_run_tests():
3648
# Call using ./mandos --check [--verbose]
3649
unittest.main()
3650
else:
3651
main()
3652
finally:
3653
logging.shutdown()
2209
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0