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- Committer: teddy at bsnet
- Date: 2011-03-21 19:34:39 UTC
- mto: (24.1.171 mandos) (237.12.2 mandos-persistent) (299.1.1 release) (300.1.1 release) (301.1.1 release)
- mto: This revision was merged to the branch mainline in revision 284.
- Revision ID: teddy@fukt.bsnet.se-20110321193439-lkj3kwvhmujd8lwv
* plugins.d/mandos-client.c (good_interface): Reject non-ARP
interfaces.
interfaces.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
32
# Contact the authors at <mandos@recompile.se>.
33
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
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
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
65
83
66
import dbus
84
67
import dbus.service
85
import gi
86
from gi.repository import GLib
68
import gobject
69
import avahi
87
70
from dbus.mainloop.glib import DBusGMainLoop
88
71
import ctypes
89
72
import ctypes.util
90
73
import xml.dom.minidom
91
74
import inspect
92
75
93
if sys.version_info.major == 2:
94
__metaclass__ = type
95
str = unicode
96
97
# Add collections.abc.Callable if it does not exist
98
try:
99
collections.abc.Callable
100
except AttributeError:
101
class abc:
102
Callable = collections.Callable
103
collections.abc = abc
104
del abc
105
106
# Show warnings by default
107
if not sys.warnoptions:
108
import warnings
109
warnings.simplefilter("default")
110
111
# Try to find the value of SO_BINDTODEVICE:
112
try:
113
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
114
# newer, and it is also the most natural place for it:
76
try:
115
77
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
116
78
except AttributeError:
117
79
try:
118
# This is where SO_BINDTODEVICE was up to and including Python
119
# 2.6, and also 3.2:
120
80
from IN import SO_BINDTODEVICE
121
81
except ImportError:
122
# In Python 2.7 it seems to have been removed entirely.
123
# Try running the C preprocessor:
124
try:
125
cc = subprocess.Popen(["cc", "--language=c", "-E",
126
"/dev/stdin"],
127
stdin=subprocess.PIPE,
128
stdout=subprocess.PIPE)
129
stdout = cc.communicate(
130
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
131
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
132
except (OSError, ValueError, IndexError):
133
# No value found
134
SO_BINDTODEVICE = None
135
136
if sys.version_info < (3, 2):
137
configparser.Configparser = configparser.SafeConfigParser
138
139
version = "1.8.9"
140
stored_state_file = "clients.pickle"
141
142
logger = logging.getLogger()
143
logging.captureWarnings(True) # Show warnings via the logging system
144
syslogger = None
145
146
try:
147
if_nametoindex = ctypes.cdll.LoadLibrary(
148
ctypes.util.find_library("c")).if_nametoindex
149
except (OSError, AttributeError):
150
151
def if_nametoindex(interface):
152
"Get an interface index the hard way, i.e. using fcntl()"
153
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
154
with contextlib.closing(socket.socket()) as s:
155
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
156
struct.pack(b"16s16x", interface))
157
interface_index = struct.unpack("I", ifreq[16:20])[0]
158
return interface_index
159
160
161
def copy_function(func):
162
"""Make a copy of a function"""
163
if sys.version_info.major == 2:
164
return types.FunctionType(func.func_code,
165
func.func_globals,
166
func.func_name,
167
func.func_defaults,
168
func.func_closure)
169
else:
170
return types.FunctionType(func.__code__,
171
func.__globals__,
172
func.__name__,
173
func.__defaults__,
174
func.__closure__)
175
176
177
def initlogger(debug, level=logging.WARNING):
178
"""init logger and add loglevel"""
179
180
global syslogger
181
syslogger = (logging.handlers.SysLogHandler(
182
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
183
address="/dev/log"))
184
syslogger.setFormatter(logging.Formatter
185
('Mandos [%(process)d]: %(levelname)s:'
186
' %(message)s'))
187
logger.addHandler(syslogger)
188
189
if debug:
190
console = logging.StreamHandler()
191
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
192
' [%(process)d]:'
193
' %(levelname)s:'
194
' %(message)s'))
195
logger.addHandler(console)
196
logger.setLevel(level)
197
198
199
class PGPError(Exception):
200
"""Exception if encryption/decryption fails"""
201
pass
202
203
204
class PGPEngine:
205
"""A simple class for OpenPGP symmetric encryption & decryption"""
206
207
def __init__(self):
208
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
209
self.gpg = "gpg"
210
try:
211
output = subprocess.check_output(["gpgconf"])
212
for line in output.splitlines():
213
name, text, path = line.split(b":")
214
if name == b"gpg":
215
self.gpg = path
216
break
217
except OSError as e:
218
if e.errno != errno.ENOENT:
219
raise
220
self.gnupgargs = ['--batch',
221
'--homedir', self.tempdir,
222
'--force-mdc',
223
'--quiet']
224
# Only GPG version 1 has the --no-use-agent option.
225
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
226
self.gnupgargs.append("--no-use-agent")
227
228
def __enter__(self):
229
return self
230
231
def __exit__(self, exc_type, exc_value, traceback):
232
self._cleanup()
233
return False
234
235
def __del__(self):
236
self._cleanup()
237
238
def _cleanup(self):
239
if self.tempdir is not None:
240
# Delete contents of tempdir
241
for root, dirs, files in os.walk(self.tempdir,
242
topdown=False):
243
for filename in files:
244
os.remove(os.path.join(root, filename))
245
for dirname in dirs:
246
os.rmdir(os.path.join(root, dirname))
247
# Remove tempdir
248
os.rmdir(self.tempdir)
249
self.tempdir = None
250
251
def password_encode(self, password):
252
# Passphrase can not be empty and can not contain newlines or
253
# NUL bytes. So we prefix it and hex encode it.
254
encoded = b"mandos" + binascii.hexlify(password)
255
if len(encoded) > 2048:
256
# GnuPG can't handle long passwords, so encode differently
257
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
258
.replace(b"\n", b"\\n")
259
.replace(b"\0", b"\\x00"))
260
return encoded
261
262
def encrypt(self, data, password):
263
passphrase = self.password_encode(password)
264
with tempfile.NamedTemporaryFile(
265
dir=self.tempdir) as passfile:
266
passfile.write(passphrase)
267
passfile.flush()
268
proc = subprocess.Popen([self.gpg, '--symmetric',
269
'--passphrase-file',
270
passfile.name]
271
+ self.gnupgargs,
272
stdin=subprocess.PIPE,
273
stdout=subprocess.PIPE,
274
stderr=subprocess.PIPE)
275
ciphertext, err = proc.communicate(input=data)
276
if proc.returncode != 0:
277
raise PGPError(err)
278
return ciphertext
279
280
def decrypt(self, data, password):
281
passphrase = self.password_encode(password)
282
with tempfile.NamedTemporaryFile(
283
dir=self.tempdir) as passfile:
284
passfile.write(passphrase)
285
passfile.flush()
286
proc = subprocess.Popen([self.gpg, '--decrypt',
287
'--passphrase-file',
288
passfile.name]
289
+ self.gnupgargs,
290
stdin=subprocess.PIPE,
291
stdout=subprocess.PIPE,
292
stderr=subprocess.PIPE)
293
decrypted_plaintext, err = proc.communicate(input=data)
294
if proc.returncode != 0:
295
raise PGPError(err)
296
return decrypted_plaintext
297
298
299
# Pretend that we have an Avahi module
300
class avahi:
301
"""This isn't so much a class as it is a module-like namespace."""
302
IF_UNSPEC = -1 # avahi-common/address.h
303
PROTO_UNSPEC = -1 # avahi-common/address.h
304
PROTO_INET = 0 # avahi-common/address.h
305
PROTO_INET6 = 1 # avahi-common/address.h
306
DBUS_NAME = "org.freedesktop.Avahi"
307
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
308
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
309
DBUS_PATH_SERVER = "/"
310
311
@staticmethod
312
def string_array_to_txt_array(t):
313
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
314
for s in t), signature="ay")
315
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
316
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
317
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
318
SERVER_INVALID = 0 # avahi-common/defs.h
319
SERVER_REGISTERING = 1 # avahi-common/defs.h
320
SERVER_RUNNING = 2 # avahi-common/defs.h
321
SERVER_COLLISION = 3 # avahi-common/defs.h
322
SERVER_FAILURE = 4 # avahi-common/defs.h
323
82
SO_BINDTODEVICE = None
83
84
85
version = "1.3.0"
86
87
#logger = logging.getLogger('mandos')
88
logger = logging.Logger('mandos')
89
syslogger = (logging.handlers.SysLogHandler
90
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
92
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
95
logger.addHandler(syslogger)
96
97
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
99
' %(levelname)s:'
100
' %(message)s'))
101
logger.addHandler(console)
324
102
325
103
class AvahiError(Exception):
326
104
def __init__(self, value, *args, **kwargs):
327
105
self.value = value
328
return super(AvahiError, self).__init__(value, *args,
329
**kwargs)
330
106
super(AvahiError, self).__init__(value, *args, **kwargs)
107
def __unicode__(self):
108
return unicode(repr(self.value))
331
109
332
110
class AvahiServiceError(AvahiError):
333
111
pass
334
112
335
336
113
class AvahiGroupError(AvahiError):
337
114
pass
338
115
339
116
340
class AvahiService:
117
class AvahiService(object):
341
118
"""An Avahi (Zeroconf) service.
342
119
343
120
Attributes:
344
121
interface: integer; avahi.IF_UNSPEC or an interface index.
345
122
Used to optionally bind to the specified interface.
346
123
name: string; Example: 'Mandos'
347
124
type: string; Example: '_mandos._tcp'.
348
See <https://www.iana.org/assignments/service-names-port-numbers>
125
See <http://www.dns-sd.org/ServiceTypes.html>
349
126
port: integer; what port to announce
350
127
TXT: list of strings; TXT record for the service
351
128
domain: string; Domain to publish on, default to .local if empty.
357
134
server: D-Bus Server
358
135
bus: dbus.SystemBus()
359
136
"""
360
361
def __init__(self,
362
interface=avahi.IF_UNSPEC,
363
name=None,
364
servicetype=None,
365
port=None,
366
TXT=None,
367
domain="",
368
host="",
369
max_renames=32768,
370
protocol=avahi.PROTO_UNSPEC,
371
bus=None):
137
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
138
servicetype = None, port = None, TXT = None,
139
domain = "", host = "", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
372
141
self.interface = interface
373
142
self.name = name
374
143
self.type = servicetype
382
151
self.group = None # our entry group
383
152
self.server = None
384
153
self.bus = bus
385
self.entry_group_state_changed_match = None
386
387
def rename(self, remove=True):
154
def rename(self):
388
155
"""Derived from the Avahi example code"""
389
156
if self.rename_count >= self.max_renames:
390
157
logger.critical("No suitable Zeroconf service name found"
391
158
" after %i retries, exiting.",
392
159
self.rename_count)
393
160
raise AvahiServiceError("Too many renames")
394
self.name = str(
395
self.server.GetAlternativeServiceName(self.name))
396
self.rename_count += 1
161
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
397
162
logger.info("Changing Zeroconf service name to %r ...",
398
163
self.name)
399
if remove:
400
self.remove()
164
syslogger.setFormatter(logging.Formatter
165
('Mandos (%s) [%%(process)d]:'
166
' %%(levelname)s: %%(message)s'
167
% self.name))
168
self.remove()
401
169
try:
402
170
self.add()
403
except dbus.exceptions.DBusException as error:
404
if (error.get_dbus_name()
405
== "org.freedesktop.Avahi.CollisionError"):
406
logger.info("Local Zeroconf service name collision.")
407
return self.rename(remove=False)
408
else:
409
logger.critical("D-Bus Exception", exc_info=error)
410
self.cleanup()
411
os._exit(1)
412
171
except dbus.exceptions.DBusException, error:
172
logger.critical("DBusException: %s", error)
173
self.cleanup()
174
os._exit(1)
175
self.rename_count += 1
413
176
def remove(self):
414
177
"""Derived from the Avahi example code"""
415
if self.entry_group_state_changed_match is not None:
416
self.entry_group_state_changed_match.remove()
417
self.entry_group_state_changed_match = None
418
178
if self.group is not None:
419
179
self.group.Reset()
420
421
180
def add(self):
422
181
"""Derived from the Avahi example code"""
423
self.remove()
424
182
if self.group is None:
425
183
self.group = dbus.Interface(
426
184
self.bus.get_object(avahi.DBUS_NAME,
427
185
self.server.EntryGroupNew()),
428
186
avahi.DBUS_INTERFACE_ENTRY_GROUP)
429
self.entry_group_state_changed_match = (
430
self.group.connect_to_signal(
431
'StateChanged', self.entry_group_state_changed))
187
self.group.connect_to_signal('StateChanged',
188
self
189
.entry_group_state_changed)
432
190
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
433
191
self.name, self.type)
434
192
self.group.AddService(
440
198
dbus.UInt16(self.port),
441
199
avahi.string_array_to_txt_array(self.TXT))
442
200
self.group.Commit()
443
444
201
def entry_group_state_changed(self, state, error):
445
202
"""Derived from the Avahi example code"""
446
203
logger.debug("Avahi entry group state change: %i", state)
447
204
448
205
if state == avahi.ENTRY_GROUP_ESTABLISHED:
449
206
logger.debug("Zeroconf service established.")
450
207
elif state == avahi.ENTRY_GROUP_COLLISION:
452
209
self.rename()
453
210
elif state == avahi.ENTRY_GROUP_FAILURE:
454
211
logger.critical("Avahi: Error in group state changed %s",
455
str(error))
456
raise AvahiGroupError("State changed: {!s}".format(error))
457
212
unicode(error))
213
raise AvahiGroupError("State changed: %s"
214
% unicode(error))
458
215
def cleanup(self):
459
216
"""Derived from the Avahi example code"""
460
217
if self.group is not None:
461
try:
462
self.group.Free()
463
except (dbus.exceptions.UnknownMethodException,
464
dbus.exceptions.DBusException):
465
pass
218
self.group.Free()
466
219
self.group = None
467
self.remove()
468
469
def server_state_changed(self, state, error=None):
220
def server_state_changed(self, state):
470
221
"""Derived from the Avahi example code"""
471
222
logger.debug("Avahi server state change: %i", state)
472
bad_states = {
473
avahi.SERVER_INVALID: "Zeroconf server invalid",
474
avahi.SERVER_REGISTERING: None,
475
avahi.SERVER_COLLISION: "Zeroconf server name collision",
476
avahi.SERVER_FAILURE: "Zeroconf server failure",
477
}
478
if state in bad_states:
479
if bad_states[state] is not None:
480
if error is None:
481
logger.error(bad_states[state])
482
else:
483
logger.error(bad_states[state] + ": %r", error)
484
self.cleanup()
223
if state == avahi.SERVER_COLLISION:
224
logger.error("Zeroconf server name collision")
225
self.remove()
485
226
elif state == avahi.SERVER_RUNNING:
486
try:
487
self.add()
488
except dbus.exceptions.DBusException as error:
489
if (error.get_dbus_name()
490
== "org.freedesktop.Avahi.CollisionError"):
491
logger.info("Local Zeroconf service name"
492
" collision.")
493
return self.rename(remove=False)
494
else:
495
logger.critical("D-Bus Exception", exc_info=error)
496
self.cleanup()
497
os._exit(1)
498
else:
499
if error is None:
500
logger.debug("Unknown state: %r", state)
501
else:
502
logger.debug("Unknown state: %r: %r", state, error)
503
227
self.add()
504
228
def activate(self):
505
229
"""Derived from the Avahi example code"""
506
230
if self.server is None:
507
231
self.server = dbus.Interface(
508
232
self.bus.get_object(avahi.DBUS_NAME,
509
avahi.DBUS_PATH_SERVER,
510
follow_name_owner_changes=True),
233
avahi.DBUS_PATH_SERVER),
511
234
avahi.DBUS_INTERFACE_SERVER)
512
235
self.server.connect_to_signal("StateChanged",
513
self.server_state_changed)
236
self.server_state_changed)
514
237
self.server_state_changed(self.server.GetState())
515
238
516
239
517
class AvahiServiceToSyslog(AvahiService):
518
def rename(self, *args, **kwargs):
519
"""Add the new name to the syslog messages"""
520
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
521
syslogger.setFormatter(logging.Formatter(
522
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
523
.format(self.name)))
524
return ret
525
526
527
# Pretend that we have a GnuTLS module
528
class gnutls:
529
"""This isn't so much a class as it is a module-like namespace."""
530
531
library = ctypes.util.find_library("gnutls")
532
if library is None:
533
library = ctypes.util.find_library("gnutls-deb0")
534
_library = ctypes.cdll.LoadLibrary(library)
535
del library
536
537
# Unless otherwise indicated, the constants and types below are
538
# all from the gnutls/gnutls.h C header file.
539
540
# Constants
541
E_SUCCESS = 0
542
E_INTERRUPTED = -52
543
E_AGAIN = -28
544
CRT_OPENPGP = 2
545
CRT_RAWPK = 3
546
CLIENT = 2
547
SHUT_RDWR = 0
548
CRD_CERTIFICATE = 1
549
E_NO_CERTIFICATE_FOUND = -49
550
X509_FMT_DER = 0
551
NO_TICKETS = 1<<10
552
ENABLE_RAWPK = 1<<18
553
CTYPE_PEERS = 3
554
KEYID_USE_SHA256 = 1 # gnutls/x509.h
555
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
556
557
# Types
558
class session_int(ctypes.Structure):
559
_fields_ = []
560
session_t = ctypes.POINTER(session_int)
561
562
class certificate_credentials_st(ctypes.Structure):
563
_fields_ = []
564
certificate_credentials_t = ctypes.POINTER(
565
certificate_credentials_st)
566
certificate_type_t = ctypes.c_int
567
568
class datum_t(ctypes.Structure):
569
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
570
('size', ctypes.c_uint)]
571
572
class openpgp_crt_int(ctypes.Structure):
573
_fields_ = []
574
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
575
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
576
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
577
credentials_type_t = ctypes.c_int
578
transport_ptr_t = ctypes.c_void_p
579
close_request_t = ctypes.c_int
580
581
# Exceptions
582
class Error(Exception):
583
def __init__(self, message=None, code=None, args=()):
584
# Default usage is by a message string, but if a return
585
# code is passed, convert it to a string with
586
# gnutls.strerror()
587
self.code = code
588
if message is None and code is not None:
589
message = gnutls.strerror(code)
590
return super(gnutls.Error, self).__init__(
591
message, *args)
592
593
class CertificateSecurityError(Error):
594
pass
595
596
# Classes
597
class Credentials:
598
def __init__(self):
599
self._c_object = gnutls.certificate_credentials_t()
600
gnutls.certificate_allocate_credentials(
601
ctypes.byref(self._c_object))
602
self.type = gnutls.CRD_CERTIFICATE
603
604
def __del__(self):
605
gnutls.certificate_free_credentials(self._c_object)
606
607
class ClientSession:
608
def __init__(self, socket, credentials=None):
609
self._c_object = gnutls.session_t()
610
gnutls_flags = gnutls.CLIENT
611
if gnutls.check_version(b"3.5.6"):
612
gnutls_flags |= gnutls.NO_TICKETS
613
if gnutls.has_rawpk:
614
gnutls_flags |= gnutls.ENABLE_RAWPK
615
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
616
del gnutls_flags
617
gnutls.set_default_priority(self._c_object)
618
gnutls.transport_set_ptr(self._c_object, socket.fileno())
619
gnutls.handshake_set_private_extensions(self._c_object,
620
True)
621
self.socket = socket
622
if credentials is None:
623
credentials = gnutls.Credentials()
624
gnutls.credentials_set(self._c_object, credentials.type,
625
ctypes.cast(credentials._c_object,
626
ctypes.c_void_p))
627
self.credentials = credentials
628
629
def __del__(self):
630
gnutls.deinit(self._c_object)
631
632
def handshake(self):
633
return gnutls.handshake(self._c_object)
634
635
def send(self, data):
636
data = bytes(data)
637
data_len = len(data)
638
while data_len > 0:
639
data_len -= gnutls.record_send(self._c_object,
640
data[-data_len:],
641
data_len)
642
643
def bye(self):
644
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
645
646
# Error handling functions
647
def _error_code(result):
648
"""A function to raise exceptions on errors, suitable
649
for the 'restype' attribute on ctypes functions"""
650
if result >= 0:
651
return result
652
if result == gnutls.E_NO_CERTIFICATE_FOUND:
653
raise gnutls.CertificateSecurityError(code=result)
654
raise gnutls.Error(code=result)
655
656
def _retry_on_error(result, func, arguments):
657
"""A function to retry on some errors, suitable
658
for the 'errcheck' attribute on ctypes functions"""
659
while result < 0:
660
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
661
return _error_code(result)
662
result = func(*arguments)
663
return result
664
665
# Unless otherwise indicated, the function declarations below are
666
# all from the gnutls/gnutls.h C header file.
667
668
# Functions
669
priority_set_direct = _library.gnutls_priority_set_direct
670
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
671
ctypes.POINTER(ctypes.c_char_p)]
672
priority_set_direct.restype = _error_code
673
674
init = _library.gnutls_init
675
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
676
init.restype = _error_code
677
678
set_default_priority = _library.gnutls_set_default_priority
679
set_default_priority.argtypes = [session_t]
680
set_default_priority.restype = _error_code
681
682
record_send = _library.gnutls_record_send
683
record_send.argtypes = [session_t, ctypes.c_void_p,
684
ctypes.c_size_t]
685
record_send.restype = ctypes.c_ssize_t
686
record_send.errcheck = _retry_on_error
687
688
certificate_allocate_credentials = (
689
_library.gnutls_certificate_allocate_credentials)
690
certificate_allocate_credentials.argtypes = [
691
ctypes.POINTER(certificate_credentials_t)]
692
certificate_allocate_credentials.restype = _error_code
693
694
certificate_free_credentials = (
695
_library.gnutls_certificate_free_credentials)
696
certificate_free_credentials.argtypes = [
697
certificate_credentials_t]
698
certificate_free_credentials.restype = None
699
700
handshake_set_private_extensions = (
701
_library.gnutls_handshake_set_private_extensions)
702
handshake_set_private_extensions.argtypes = [session_t,
703
ctypes.c_int]
704
handshake_set_private_extensions.restype = None
705
706
credentials_set = _library.gnutls_credentials_set
707
credentials_set.argtypes = [session_t, credentials_type_t,
708
ctypes.c_void_p]
709
credentials_set.restype = _error_code
710
711
strerror = _library.gnutls_strerror
712
strerror.argtypes = [ctypes.c_int]
713
strerror.restype = ctypes.c_char_p
714
715
certificate_type_get = _library.gnutls_certificate_type_get
716
certificate_type_get.argtypes = [session_t]
717
certificate_type_get.restype = _error_code
718
719
certificate_get_peers = _library.gnutls_certificate_get_peers
720
certificate_get_peers.argtypes = [session_t,
721
ctypes.POINTER(ctypes.c_uint)]
722
certificate_get_peers.restype = ctypes.POINTER(datum_t)
723
724
global_set_log_level = _library.gnutls_global_set_log_level
725
global_set_log_level.argtypes = [ctypes.c_int]
726
global_set_log_level.restype = None
727
728
global_set_log_function = _library.gnutls_global_set_log_function
729
global_set_log_function.argtypes = [log_func]
730
global_set_log_function.restype = None
731
732
deinit = _library.gnutls_deinit
733
deinit.argtypes = [session_t]
734
deinit.restype = None
735
736
handshake = _library.gnutls_handshake
737
handshake.argtypes = [session_t]
738
handshake.restype = _error_code
739
handshake.errcheck = _retry_on_error
740
741
transport_set_ptr = _library.gnutls_transport_set_ptr
742
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
743
transport_set_ptr.restype = None
744
745
bye = _library.gnutls_bye
746
bye.argtypes = [session_t, close_request_t]
747
bye.restype = _error_code
748
bye.errcheck = _retry_on_error
749
750
check_version = _library.gnutls_check_version
751
check_version.argtypes = [ctypes.c_char_p]
752
check_version.restype = ctypes.c_char_p
753
754
_need_version = b"3.3.0"
755
if check_version(_need_version) is None:
756
raise self.Error("Needs GnuTLS {} or later"
757
.format(_need_version))
758
759
_tls_rawpk_version = b"3.6.6"
760
has_rawpk = bool(check_version(_tls_rawpk_version))
761
762
if has_rawpk:
763
# Types
764
class pubkey_st(ctypes.Structure):
765
_fields = []
766
pubkey_t = ctypes.POINTER(pubkey_st)
767
768
x509_crt_fmt_t = ctypes.c_int
769
770
# All the function declarations below are from gnutls/abstract.h
771
pubkey_init = _library.gnutls_pubkey_init
772
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
773
pubkey_init.restype = _error_code
774
775
pubkey_import = _library.gnutls_pubkey_import
776
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
777
x509_crt_fmt_t]
778
pubkey_import.restype = _error_code
779
780
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
781
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
782
ctypes.POINTER(ctypes.c_ubyte),
783
ctypes.POINTER(ctypes.c_size_t)]
784
pubkey_get_key_id.restype = _error_code
785
786
pubkey_deinit = _library.gnutls_pubkey_deinit
787
pubkey_deinit.argtypes = [pubkey_t]
788
pubkey_deinit.restype = None
789
else:
790
# All the function declarations below are from gnutls/openpgp.h
791
792
openpgp_crt_init = _library.gnutls_openpgp_crt_init
793
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
794
openpgp_crt_init.restype = _error_code
795
796
openpgp_crt_import = _library.gnutls_openpgp_crt_import
797
openpgp_crt_import.argtypes = [openpgp_crt_t,
798
ctypes.POINTER(datum_t),
799
openpgp_crt_fmt_t]
800
openpgp_crt_import.restype = _error_code
801
802
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
803
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
804
ctypes.POINTER(ctypes.c_uint)]
805
openpgp_crt_verify_self.restype = _error_code
806
807
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
808
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
809
openpgp_crt_deinit.restype = None
810
811
openpgp_crt_get_fingerprint = (
812
_library.gnutls_openpgp_crt_get_fingerprint)
813
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
814
ctypes.c_void_p,
815
ctypes.POINTER(
816
ctypes.c_size_t)]
817
openpgp_crt_get_fingerprint.restype = _error_code
818
819
if check_version(b"3.6.4"):
820
certificate_type_get2 = _library.gnutls_certificate_type_get2
821
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
822
certificate_type_get2.restype = _error_code
823
824
# Remove non-public functions
825
del _error_code, _retry_on_error
826
827
828
def call_pipe(connection, # : multiprocessing.Connection
829
func, *args, **kwargs):
830
"""This function is meant to be called by multiprocessing.Process
831
832
This function runs func(*args, **kwargs), and writes the resulting
833
return value on the provided multiprocessing.Connection.
834
"""
835
connection.send(func(*args, **kwargs))
836
connection.close()
837
838
839
class Client:
240
class Client(object):
840
241
"""A representation of a client host served by this server.
841
242
842
243
Attributes:
843
approved: bool(); 'None' if not yet approved/disapproved
244
_approved: bool(); 'None' if not yet approved/disapproved
844
245
approval_delay: datetime.timedelta(); Time to wait for approval
845
246
approval_duration: datetime.timedelta(); Duration of one approval
846
checker: multiprocessing.Process(); a running checker process used
847
to see if the client lives. 'None' if no process is
848
running.
849
checker_callback_tag: a GLib event source tag, or None
247
checker: subprocess.Popen(); a running checker process used
248
to see if the client lives.
249
'None' if no process is running.
250
checker_callback_tag: a gobject event source tag, or None
850
251
checker_command: string; External command which is run to check
851
252
if client lives. %() expansions are done at
852
253
runtime with vars(self) as dict, so that for
853
254
instance %(name)s can be used in the command.
854
checker_initiator_tag: a GLib event source tag, or None
255
checker_initiator_tag: a gobject event source tag, or None
855
256
created: datetime.datetime(); (UTC) object creation
856
client_structure: Object describing what attributes a client has
857
and is used for storing the client at exit
858
257
current_checker_command: string; current running checker_command
859
disable_initiator_tag: a GLib event source tag, or None
258
disable_hook: If set, called by disable() as disable_hook(self)
259
disable_initiator_tag: a gobject event source tag, or None
860
260
enabled: bool()
861
261
fingerprint: string (40 or 32 hexadecimal digits); used to
862
uniquely identify an OpenPGP client
863
key_id: string (64 hexadecimal digits); used to uniquely identify
864
a client using raw public keys
262
uniquely identify the client
865
263
host: string; available for use by the checker command
866
264
interval: datetime.timedelta(); How often to start a new checker
867
265
last_approval_request: datetime.datetime(); (UTC) or None
868
266
last_checked_ok: datetime.datetime(); (UTC) or None
869
last_checker_status: integer between 0 and 255 reflecting exit
870
status of last checker. -1 reflects crashed
871
checker, -2 means no checker completed yet.
872
last_checker_signal: The signal which killed the last checker, if
873
last_checker_status is -1
874
last_enabled: datetime.datetime(); (UTC) or None
267
last_enabled: datetime.datetime(); (UTC)
875
268
name: string; from the config file, used in log messages and
876
269
D-Bus identifiers
877
270
secret: bytestring; sent verbatim (over TLS) to client
878
271
timeout: datetime.timedelta(); How long from last_checked_ok
879
272
until this client is disabled
880
extended_timeout: extra long timeout when secret has been sent
881
273
runtime_expansions: Allowed attributes for runtime expansion.
882
expires: datetime.datetime(); time (UTC) when a client will be
883
disabled, or None
884
server_settings: The server_settings dict from main()
885
274
"""
886
275
887
276
runtime_expansions = ("approval_delay", "approval_duration",
888
"created", "enabled", "expires", "key_id",
889
"fingerprint", "host", "interval",
890
"last_approval_request", "last_checked_ok",
277
"created", "enabled", "fingerprint",
278
"host", "interval", "last_checked_ok",
891
279
"last_enabled", "name", "timeout")
892
client_defaults = {
893
"timeout": "PT5M",
894
"extended_timeout": "PT15M",
895
"interval": "PT2M",
896
"checker": "fping -q -- %%(host)s",
897
"host": "",
898
"approval_delay": "PT0S",
899
"approval_duration": "PT1S",
900
"approved_by_default": "True",
901
"enabled": "True",
902
}
903
280
904
281
@staticmethod
905
def config_parser(config):
906
"""Construct a new dict of client settings of this form:
907
{ client_name: {setting_name: value, ...}, ...}
908
with exceptions for any special settings as defined above.
909
NOTE: Must be a pure function. Must return the same result
910
value given the same arguments.
911
"""
912
settings = {}
913
for client_name in config.sections():
914
section = dict(config.items(client_name))
915
client = settings[client_name] = {}
916
917
client["host"] = section["host"]
918
# Reformat values from string types to Python types
919
client["approved_by_default"] = config.getboolean(
920
client_name, "approved_by_default")
921
client["enabled"] = config.getboolean(client_name,
922
"enabled")
923
924
# Uppercase and remove spaces from key_id and fingerprint
925
# for later comparison purposes with return value from the
926
# key_id() and fingerprint() functions
927
client["key_id"] = (section.get("key_id", "").upper()
928
.replace(" ", ""))
929
client["fingerprint"] = (section["fingerprint"].upper()
930
.replace(" ", ""))
931
if "secret" in section:
932
client["secret"] = codecs.decode(section["secret"]
933
.encode("utf-8"),
934
"base64")
935
elif "secfile" in section:
936
with open(os.path.expanduser(os.path.expandvars
937
(section["secfile"])),
938
"rb") as secfile:
939
client["secret"] = secfile.read()
940
else:
941
raise TypeError("No secret or secfile for section {}"
942
.format(section))
943
client["timeout"] = string_to_delta(section["timeout"])
944
client["extended_timeout"] = string_to_delta(
945
section["extended_timeout"])
946
client["interval"] = string_to_delta(section["interval"])
947
client["approval_delay"] = string_to_delta(
948
section["approval_delay"])
949
client["approval_duration"] = string_to_delta(
950
section["approval_duration"])
951
client["checker_command"] = section["checker"]
952
client["last_approval_request"] = None
953
client["last_checked_ok"] = None
954
client["last_checker_status"] = -2
955
956
return settings
957
958
def __init__(self, settings, name=None, server_settings=None):
282
def _timedelta_to_milliseconds(td):
283
"Convert a datetime.timedelta() to milliseconds"
284
return ((td.days * 24 * 60 * 60 * 1000)
285
+ (td.seconds * 1000)
286
+ (td.microseconds // 1000))
287
288
def timeout_milliseconds(self):
289
"Return the 'timeout' attribute in milliseconds"
290
return self._timedelta_to_milliseconds(self.timeout)
291
292
def interval_milliseconds(self):
293
"Return the 'interval' attribute in milliseconds"
294
return self._timedelta_to_milliseconds(self.interval)
295
296
def approval_delay_milliseconds(self):
297
return self._timedelta_to_milliseconds(self.approval_delay)
298
299
def __init__(self, name = None, disable_hook=None, config=None):
300
"""Note: the 'checker' key in 'config' sets the
301
'checker_command' attribute and *not* the 'checker'
302
attribute."""
959
303
self.name = name
960
if server_settings is None:
961
server_settings = {}
962
self.server_settings = server_settings
963
# adding all client settings
964
for setting, value in settings.items():
965
setattr(self, setting, value)
966
967
if self.enabled:
968
if not hasattr(self, "last_enabled"):
969
self.last_enabled = datetime.datetime.utcnow()
970
if not hasattr(self, "expires"):
971
self.expires = (datetime.datetime.utcnow()
972
+ self.timeout)
973
else:
974
self.last_enabled = None
975
self.expires = None
976
304
if config is None:
305
config = {}
977
306
logger.debug("Creating client %r", self.name)
978
logger.debug(" Key ID: %s", self.key_id)
307
# Uppercase and remove spaces from fingerprint for later
308
# comparison purposes with return value from the fingerprint()
309
# function
310
self.fingerprint = (config["fingerprint"].upper()
311
.replace(" ", ""))
979
312
logger.debug(" Fingerprint: %s", self.fingerprint)
980
self.created = settings.get("created",
981
datetime.datetime.utcnow())
982
983
# attributes specific for this server instance
313
if "secret" in config:
314
self.secret = config["secret"].decode("base64")
315
elif "secfile" in config:
316
with open(os.path.expanduser(os.path.expandvars
317
(config["secfile"])),
318
"rb") as secfile:
319
self.secret = secfile.read()
320
else:
321
raise TypeError("No secret or secfile for client %s"
322
% self.name)
323
self.host = config.get("host", "")
324
self.created = datetime.datetime.utcnow()
325
self.enabled = False
326
self.last_approval_request = None
327
self.last_enabled = None
328
self.last_checked_ok = None
329
self.timeout = string_to_delta(config["timeout"])
330
self.interval = string_to_delta(config["interval"])
331
self.disable_hook = disable_hook
984
332
self.checker = None
985
333
self.checker_initiator_tag = None
986
334
self.disable_initiator_tag = None
987
335
self.checker_callback_tag = None
336
self.checker_command = config["checker"]
988
337
self.current_checker_command = None
989
self.approved = None
338
self.last_connect = None
339
self._approved = None
340
self.approved_by_default = config.get("approved_by_default",
341
True)
990
342
self.approvals_pending = 0
991
self.changedstate = multiprocessing_manager.Condition(
992
multiprocessing_manager.Lock())
993
self.client_structure = [attr
994
for attr in self.__dict__.keys()
995
if not attr.startswith("_")]
996
self.client_structure.append("client_structure")
997
998
for name, t in inspect.getmembers(
999
type(self), lambda obj: isinstance(obj, property)):
1000
if not name.startswith("_"):
1001
self.client_structure.append(name)
1002
1003
# Send notice to process children that client state has changed
343
self.approval_delay = string_to_delta(
344
config["approval_delay"])
345
self.approval_duration = string_to_delta(
346
config["approval_duration"])
347
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
348
1004
349
def send_changedstate(self):
1005
with self.changedstate:
1006
self.changedstate.notify_all()
1007
350
self.changedstate.acquire()
351
self.changedstate.notify_all()
352
self.changedstate.release()
353
1008
354
def enable(self):
1009
355
"""Start this client's checker and timeout hooks"""
1010
356
if getattr(self, "enabled", False):
1011
357
# Already enabled
1012
358
return
1013
self.expires = datetime.datetime.utcnow() + self.timeout
1014
self.enabled = True
359
self.send_changedstate()
1015
360
self.last_enabled = datetime.datetime.utcnow()
1016
self.init_checker()
1017
self.send_changedstate()
1018
361
# Schedule a new checker to be started an 'interval' from now,
362
# and every interval from then on.
363
self.checker_initiator_tag = (gobject.timeout_add
364
(self.interval_milliseconds(),
365
self.start_checker))
366
# Schedule a disable() when 'timeout' has passed
367
self.disable_initiator_tag = (gobject.timeout_add
368
(self.timeout_milliseconds(),
369
self.disable))
370
self.enabled = True
371
# Also start a new checker *right now*.
372
self.start_checker()
373
1019
374
def disable(self, quiet=True):
1020
375
"""Disable this client."""
1021
376
if not getattr(self, "enabled", False):
1022
377
return False
1023
378
if not quiet:
379
self.send_changedstate()
380
if not quiet:
1024
381
logger.info("Disabling client %s", self.name)
1025
if getattr(self, "disable_initiator_tag", None) is not None:
1026
GLib.source_remove(self.disable_initiator_tag)
382
if getattr(self, "disable_initiator_tag", False):
383
gobject.source_remove(self.disable_initiator_tag)
1027
384
self.disable_initiator_tag = None
1028
self.expires = None
1029
if getattr(self, "checker_initiator_tag", None) is not None:
1030
GLib.source_remove(self.checker_initiator_tag)
385
if getattr(self, "checker_initiator_tag", False):
386
gobject.source_remove(self.checker_initiator_tag)
1031
387
self.checker_initiator_tag = None
1032
388
self.stop_checker()
389
if self.disable_hook:
390
self.disable_hook(self)
1033
391
self.enabled = False
1034
if not quiet:
1035
self.send_changedstate()
1036
# Do not run this again if called by a GLib.timeout_add
392
# Do not run this again if called by a gobject.timeout_add
1037
393
return False
1038
394
1039
395
def __del__(self):
396
self.disable_hook = None
1040
397
self.disable()
1041
1042
def init_checker(self):
1043
# Schedule a new checker to be started an 'interval' from now,
1044
# and every interval from then on.
1045
if self.checker_initiator_tag is not None:
1046
GLib.source_remove(self.checker_initiator_tag)
1047
self.checker_initiator_tag = GLib.timeout_add(
1048
random.randrange(int(self.interval.total_seconds() * 1000
1049
+ 1)),
1050
self.start_checker)
1051
# Schedule a disable() when 'timeout' has passed
1052
if self.disable_initiator_tag is not None:
1053
GLib.source_remove(self.disable_initiator_tag)
1054
self.disable_initiator_tag = GLib.timeout_add(
1055
int(self.timeout.total_seconds() * 1000), self.disable)
1056
# Also start a new checker *right now*.
1057
self.start_checker()
1058
1059
def checker_callback(self, source, condition, connection,
1060
command):
398
399
def checker_callback(self, pid, condition, command):
1061
400
"""The checker has completed, so take appropriate actions."""
1062
# Read return code from connection (see call_pipe)
1063
returncode = connection.recv()
1064
connection.close()
1065
if self.checker is not None:
1066
self.checker.join()
1067
401
self.checker_callback_tag = None
1068
402
self.checker = None
1069
1070
if returncode >= 0:
1071
self.last_checker_status = returncode
1072
self.last_checker_signal = None
1073
if self.last_checker_status == 0:
403
if os.WIFEXITED(condition):
404
exitstatus = os.WEXITSTATUS(condition)
405
if exitstatus == 0:
1074
406
logger.info("Checker for %(name)s succeeded",
1075
407
vars(self))
1076
408
self.checked_ok()
1077
409
else:
1078
logger.info("Checker for %(name)s failed", vars(self))
410
logger.info("Checker for %(name)s failed",
411
vars(self))
1079
412
else:
1080
self.last_checker_status = -1
1081
self.last_checker_signal = -returncode
1082
413
logger.warning("Checker for %(name)s crashed?",
1083
414
vars(self))
1084
return False
1085
415
1086
416
def checked_ok(self):
1087
"""Assert that the client has been seen, alive and well."""
417
"""Bump up the timeout for this client.
418
419
This should only be called when the client has been seen,
420
alive and well.
421
"""
1088
422
self.last_checked_ok = datetime.datetime.utcnow()
1089
self.last_checker_status = 0
1090
self.last_checker_signal = None
1091
self.bump_timeout()
1092
1093
def bump_timeout(self, timeout=None):
1094
"""Bump up the timeout for this client."""
1095
if timeout is None:
1096
timeout = self.timeout
1097
if self.disable_initiator_tag is not None:
1098
GLib.source_remove(self.disable_initiator_tag)
1099
self.disable_initiator_tag = None
1100
if getattr(self, "enabled", False):
1101
self.disable_initiator_tag = GLib.timeout_add(
1102
int(timeout.total_seconds() * 1000), self.disable)
1103
self.expires = datetime.datetime.utcnow() + timeout
1104
423
gobject.source_remove(self.disable_initiator_tag)
424
self.disable_initiator_tag = (gobject.timeout_add
425
(self.timeout_milliseconds(),
426
self.disable))
427
1105
428
def need_approval(self):
1106
429
self.last_approval_request = datetime.datetime.utcnow()
1107
430
1108
431
def start_checker(self):
1109
432
"""Start a new checker subprocess if one is not running.
1110
433
1111
434
If a checker already exists, leave it running and do
1112
435
nothing."""
1113
436
# The reason for not killing a running checker is that if we
1114
# did that, and if a checker (for some reason) started running
1115
# slowly and taking more than 'interval' time, then the client
1116
# would inevitably timeout, since no checker would get a
1117
# chance to run to completion. If we instead leave running
437
# did that, then if a checker (for some reason) started
438
# running slowly and taking more than 'interval' time, the
439
# client would inevitably timeout, since no checker would get
440
# a chance to run to completion. If we instead leave running
1118
441
# checkers alone, the checker would have to take more time
1119
442
# than 'timeout' for the client to be disabled, which is as it
1120
443
# should be.
1121
1122
if self.checker is not None and not self.checker.is_alive():
1123
logger.warning("Checker was not alive; joining")
1124
self.checker.join()
1125
self.checker = None
444
445
# If a checker exists, make sure it is not a zombie
446
try:
447
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
448
except (AttributeError, OSError), error:
449
if (isinstance(error, OSError)
450
and error.errno != errno.ECHILD):
451
raise error
452
else:
453
if pid:
454
logger.warning("Checker was a zombie")
455
gobject.source_remove(self.checker_callback_tag)
456
self.checker_callback(pid, status,
457
self.current_checker_command)
1126
458
# Start a new checker if needed
1127
459
if self.checker is None:
1128
# Escape attributes for the shell
1129
escaped_attrs = {
1130
attr: re.escape(str(getattr(self, attr)))
1131
for attr in self.runtime_expansions}
1132
460
try:
1133
command = self.checker_command % escaped_attrs
1134
except TypeError as error:
1135
logger.error('Could not format string "%s"',
1136
self.checker_command,
1137
exc_info=error)
1138
return True # Try again later
461
# In case checker_command has exactly one % operator
462
command = self.checker_command % self.host
463
except TypeError:
464
# Escape attributes for the shell
465
escaped_attrs = dict(
466
(attr,
467
re.escape(unicode(str(getattr(self, attr, "")),
468
errors=
469
'replace')))
470
for attr in
471
self.runtime_expansions)
472
473
try:
474
command = self.checker_command % escaped_attrs
475
except TypeError, error:
476
logger.error('Could not format string "%s":'
477
' %s', self.checker_command, error)
478
return True # Try again later
1139
479
self.current_checker_command = command
1140
logger.info("Starting checker %r for %s", command,
1141
self.name)
1142
# We don't need to redirect stdout and stderr, since
1143
# in normal mode, that is already done by daemon(),
1144
# and in debug mode we don't want to. (Stdin is
1145
# always replaced by /dev/null.)
1146
# The exception is when not debugging but nevertheless
1147
# running in the foreground; use the previously
1148
# created wnull.
1149
popen_args = {"close_fds": True,
1150
"shell": True,
1151
"cwd": "/"}
1152
if (not self.server_settings["debug"]
1153
and self.server_settings["foreground"]):
1154
popen_args.update({"stdout": wnull,
1155
"stderr": wnull})
1156
pipe = multiprocessing.Pipe(duplex=False)
1157
self.checker = multiprocessing.Process(
1158
target=call_pipe,
1159
args=(pipe[1], subprocess.call, command),
1160
kwargs=popen_args)
1161
self.checker.start()
1162
self.checker_callback_tag = GLib.io_add_watch(
1163
GLib.IOChannel.unix_new(pipe[0].fileno()),
1164
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1165
self.checker_callback, pipe[0], command)
1166
# Re-run this periodically if run by GLib.timeout_add
480
try:
481
logger.info("Starting checker %r for %s",
482
command, self.name)
483
# We don't need to redirect stdout and stderr, since
484
# in normal mode, that is already done by daemon(),
485
# and in debug mode we don't want to. (Stdin is
486
# always replaced by /dev/null.)
487
self.checker = subprocess.Popen(command,
488
close_fds=True,
489
shell=True, cwd="/")
490
self.checker_callback_tag = (gobject.child_watch_add
491
(self.checker.pid,
492
self.checker_callback,
493
data=command))
494
# The checker may have completed before the gobject
495
# watch was added. Check for this.
496
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
497
if pid:
498
gobject.source_remove(self.checker_callback_tag)
499
self.checker_callback(pid, status, command)
500
except OSError, error:
501
logger.error("Failed to start subprocess: %s",
502
error)
503
# Re-run this periodically if run by gobject.timeout_add
1167
504
return True
1168
505
1169
506
def stop_checker(self):
1170
507
"""Force the checker process, if any, to stop."""
1171
508
if self.checker_callback_tag:
1172
GLib.source_remove(self.checker_callback_tag)
509
gobject.source_remove(self.checker_callback_tag)
1173
510
self.checker_callback_tag = None
1174
511
if getattr(self, "checker", None) is None:
1175
512
return
1176
513
logger.debug("Stopping checker for %(name)s", vars(self))
1177
self.checker.terminate()
514
try:
515
os.kill(self.checker.pid, signal.SIGTERM)
516
#time.sleep(0.5)
517
#if self.checker.poll() is None:
518
# os.kill(self.checker.pid, signal.SIGKILL)
519
except OSError, error:
520
if error.errno != errno.ESRCH: # No such process
521
raise
1178
522
self.checker = None
1179
523
1180
1181
def dbus_service_property(dbus_interface,
1182
signature="v",
1183
access="readwrite",
1184
byte_arrays=False):
524
def dbus_service_property(dbus_interface, signature="v",
525
access="readwrite", byte_arrays=False):
1185
526
"""Decorators for marking methods of a DBusObjectWithProperties to
1186
527
become properties on the D-Bus.
1187
528
1188
529
The decorated method will be called with no arguments by "Get"
1189
530
and with one argument by "Set".
1190
531
1191
532
The parameters, where they are supported, are the same as
1192
533
dbus.service.method, except there is only "signature", since the
1193
534
type from Get() and the type sent to Set() is the same.
1196
537
# "Set" method, so we fail early here:
1197
538
if byte_arrays and signature != "ay":
1198
539
raise ValueError("Byte arrays not supported for non-'ay'"
1199
" signature {!r}".format(signature))
1200
540
" signature %r" % signature)
1201
541
def decorator(func):
1202
542
func._dbus_is_property = True
1203
543
func._dbus_interface = dbus_interface
1206
546
func._dbus_name = func.__name__
1207
547
if func._dbus_name.endswith("_dbus_property"):
1208
548
func._dbus_name = func._dbus_name[:-14]
1209
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1210
return func
1211
1212
return decorator
1213
1214
1215
def dbus_interface_annotations(dbus_interface):
1216
"""Decorator for marking functions returning interface annotations
1217
1218
Usage:
1219
1220
@dbus_interface_annotations("org.example.Interface")
1221
def _foo(self): # Function name does not matter
1222
return {"org.freedesktop.DBus.Deprecated": "true",
1223
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1224
"false"}
1225
"""
1226
1227
def decorator(func):
1228
func._dbus_is_interface = True
1229
func._dbus_interface = dbus_interface
1230
func._dbus_name = dbus_interface
1231
return func
1232
1233
return decorator
1234
1235
1236
def dbus_annotations(annotations):
1237
"""Decorator to annotate D-Bus methods, signals or properties
1238
Usage:
1239
1240
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1241
"org.freedesktop.DBus.Property."
1242
"EmitsChangedSignal": "false"})
1243
@dbus_service_property("org.example.Interface", signature="b",
1244
access="r")
1245
def Property_dbus_property(self):
1246
return dbus.Boolean(False)
1247
1248
See also the DBusObjectWithAnnotations class.
1249
"""
1250
1251
def decorator(func):
1252
func._dbus_annotations = annotations
1253
return func
1254
549
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
550
return func
1255
551
return decorator
1256
552
1257
553
1258
554
class DBusPropertyException(dbus.exceptions.DBusException):
1259
555
"""A base class for D-Bus property-related exceptions
1260
556
"""
1261
pass
557
def __unicode__(self):
558
return unicode(str(self))
1262
559
1263
560
1264
561
class DBusPropertyAccessException(DBusPropertyException):
1273
570
pass
1274
571
1275
572
1276
class DBusObjectWithAnnotations(dbus.service.Object):
1277
"""A D-Bus object with annotations.
1278
1279
Classes inheriting from this can use the dbus_annotations
1280
decorator to add annotations to methods or signals.
1281
"""
1282
1283
@staticmethod
1284
def _is_dbus_thing(thing):
1285
"""Returns a function testing if an attribute is a D-Bus thing
1286
1287
If called like _is_dbus_thing("method") it returns a function
1288
suitable for use as predicate to inspect.getmembers().
1289
"""
1290
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1291
False)
1292
1293
def _get_all_dbus_things(self, thing):
1294
"""Returns a generator of (name, attribute) pairs
1295
"""
1296
return ((getattr(athing.__get__(self), "_dbus_name", name),
1297
athing.__get__(self))
1298
for cls in self.__class__.__mro__
1299
for name, athing in
1300
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1301
1302
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1303
out_signature="s",
1304
path_keyword='object_path',
1305
connection_keyword='connection')
1306
def Introspect(self, object_path, connection):
1307
"""Overloading of standard D-Bus method.
1308
1309
Inserts annotation tags on methods and signals.
1310
"""
1311
xmlstring = dbus.service.Object.Introspect(self, object_path,
1312
connection)
1313
try:
1314
document = xml.dom.minidom.parseString(xmlstring)
1315
1316
for if_tag in document.getElementsByTagName("interface"):
1317
# Add annotation tags
1318
for typ in ("method", "signal"):
1319
for tag in if_tag.getElementsByTagName(typ):
1320
annots = dict()
1321
for name, prop in (self.
1322
_get_all_dbus_things(typ)):
1323
if (name == tag.getAttribute("name")
1324
and prop._dbus_interface
1325
== if_tag.getAttribute("name")):
1326
annots.update(getattr(
1327
prop, "_dbus_annotations", {}))
1328
for name, value in annots.items():
1329
ann_tag = document.createElement(
1330
"annotation")
1331
ann_tag.setAttribute("name", name)
1332
ann_tag.setAttribute("value", value)
1333
tag.appendChild(ann_tag)
1334
# Add interface annotation tags
1335
for annotation, value in dict(
1336
itertools.chain.from_iterable(
1337
annotations().items()
1338
for name, annotations
1339
in self._get_all_dbus_things("interface")
1340
if name == if_tag.getAttribute("name")
1341
)).items():
1342
ann_tag = document.createElement("annotation")
1343
ann_tag.setAttribute("name", annotation)
1344
ann_tag.setAttribute("value", value)
1345
if_tag.appendChild(ann_tag)
1346
# Fix argument name for the Introspect method itself
1347
if (if_tag.getAttribute("name")
1348
== dbus.INTROSPECTABLE_IFACE):
1349
for cn in if_tag.getElementsByTagName("method"):
1350
if cn.getAttribute("name") == "Introspect":
1351
for arg in cn.getElementsByTagName("arg"):
1352
if (arg.getAttribute("direction")
1353
== "out"):
1354
arg.setAttribute("name",
1355
"xml_data")
1356
xmlstring = document.toxml("utf-8")
1357
document.unlink()
1358
except (AttributeError, xml.dom.DOMException,
1359
xml.parsers.expat.ExpatError) as error:
1360
logger.error("Failed to override Introspection method",
1361
exc_info=error)
1362
return xmlstring
1363
1364
1365
class DBusObjectWithProperties(DBusObjectWithAnnotations):
573
class DBusObjectWithProperties(dbus.service.Object):
1366
574
"""A D-Bus object with properties.
1367
575
1368
576
Classes inheriting from this can use the dbus_service_property
1369
577
decorator to expose methods as D-Bus properties. It exposes the
1370
578
standard Get(), Set(), and GetAll() methods on the D-Bus.
1371
579
"""
1372
580
581
@staticmethod
582
def _is_dbus_property(obj):
583
return getattr(obj, "_dbus_is_property", False)
584
585
def _get_all_dbus_properties(self):
586
"""Returns a generator of (name, attribute) pairs
587
"""
588
return ((prop._dbus_name, prop)
589
for name, prop in
590
inspect.getmembers(self, self._is_dbus_property))
591
1373
592
def _get_dbus_property(self, interface_name, property_name):
1374
593
"""Returns a bound method if one exists which is a D-Bus
1375
594
property with the specified name and interface.
1376
595
"""
1377
for cls in self.__class__.__mro__:
1378
for name, value in inspect.getmembers(
1379
cls, self._is_dbus_thing("property")):
1380
if (value._dbus_name == property_name
1381
and value._dbus_interface == interface_name):
1382
return value.__get__(self)
1383
596
for name in (property_name,
597
property_name + "_dbus_property"):
598
prop = getattr(self, name, None)
599
if (prop is None
600
or not self._is_dbus_property(prop)
601
or prop._dbus_name != property_name
602
or (interface_name and prop._dbus_interface
603
and interface_name != prop._dbus_interface)):
604
continue
605
return prop
1384
606
# No such property
1385
raise DBusPropertyNotFound("{}:{}.{}".format(
1386
self.dbus_object_path, interface_name, property_name))
1387
1388
@classmethod
1389
def _get_all_interface_names(cls):
1390
"""Get a sequence of all interfaces supported by an object"""
1391
return (name for name in set(getattr(getattr(x, attr),
1392
"_dbus_interface", None)
1393
for x in (inspect.getmro(cls))
1394
for attr in dir(x))
1395
if name is not None)
1396
1397
@dbus.service.method(dbus.PROPERTIES_IFACE,
1398
in_signature="ss",
607
raise DBusPropertyNotFound(self.dbus_object_path + ":"
608
+ interface_name + "."
609
+ property_name)
610
611
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1399
612
out_signature="v")
1400
613
def Get(self, interface_name, property_name):
1401
614
"""Standard D-Bus property Get() method, see D-Bus standard.
1407
620
if not hasattr(value, "variant_level"):
1408
621
return value
1409
622
return type(value)(value, variant_level=value.variant_level+1)
1410
623
1411
624
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1412
625
def Set(self, interface_name, property_name, value):
1413
626
"""Standard D-Bus property Set() method, see D-Bus standard.
1419
632
# The byte_arrays option is not supported yet on
1420
633
# signatures other than "ay".
1421
634
if prop._dbus_signature != "ay":
1422
raise ValueError("Byte arrays not supported for non-"
1423
"'ay' signature {!r}"
1424
.format(prop._dbus_signature))
1425
value = dbus.ByteArray(bytes(value))
635
raise ValueError
636
value = dbus.ByteArray(''.join(unichr(byte)
637
for byte in value))
1426
638
prop(value)
1427
1428
@dbus.service.method(dbus.PROPERTIES_IFACE,
1429
in_signature="s",
639
640
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1430
641
out_signature="a{sv}")
1431
642
def GetAll(self, interface_name):
1432
643
"""Standard D-Bus property GetAll() method, see D-Bus
1434
645
1435
646
Note: Will not include properties with access="write".
1436
647
"""
1437
properties = {}
1438
for name, prop in self._get_all_dbus_things("property"):
648
all = {}
649
for name, prop in self._get_all_dbus_properties():
1439
650
if (interface_name
1440
651
and interface_name != prop._dbus_interface):
1441
652
# Interface non-empty but did not match
1445
656
continue
1446
657
value = prop()
1447
658
if not hasattr(value, "variant_level"):
1448
properties[name] = value
659
all[name] = value
1449
660
continue
1450
properties[name] = type(value)(
1451
value, variant_level=value.variant_level + 1)
1452
return dbus.Dictionary(properties, signature="sv")
1453
1454
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1455
def PropertiesChanged(self, interface_name, changed_properties,
1456
invalidated_properties):
1457
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1458
standard.
1459
"""
1460
pass
1461
661
all[name] = type(value)(value, variant_level=
662
value.variant_level+1)
663
return dbus.Dictionary(all, signature="sv")
664
1462
665
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1463
666
out_signature="s",
1464
667
path_keyword='object_path',
1465
668
connection_keyword='connection')
1466
669
def Introspect(self, object_path, connection):
1467
"""Overloading of standard D-Bus method.
1468
1469
Inserts property tags and interface annotation tags.
670
"""Standard D-Bus method, overloaded to insert property tags.
1470
671
"""
1471
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1472
object_path,
1473
connection)
672
xmlstring = dbus.service.Object.Introspect(self, object_path,
673
connection)
1474
674
try:
1475
675
document = xml.dom.minidom.parseString(xmlstring)
1476
1477
676
def make_tag(document, name, prop):
1478
677
e = document.createElement("property")
1479
678
e.setAttribute("name", name)
1480
679
e.setAttribute("type", prop._dbus_signature)
1481
680
e.setAttribute("access", prop._dbus_access)
1482
681
return e
1483
1484
682
for if_tag in document.getElementsByTagName("interface"):
1485
# Add property tags
1486
683
for tag in (make_tag(document, name, prop)
1487
684
for name, prop
1488
in self._get_all_dbus_things("property")
685
in self._get_all_dbus_properties()
1489
686
if prop._dbus_interface
1490
687
== if_tag.getAttribute("name")):
1491
688
if_tag.appendChild(tag)
1492
# Add annotation tags for properties
1493
for tag in if_tag.getElementsByTagName("property"):
1494
annots = dict()
1495
for name, prop in self._get_all_dbus_things(
1496
"property"):
1497
if (name == tag.getAttribute("name")
1498
and prop._dbus_interface
1499
== if_tag.getAttribute("name")):
1500
annots.update(getattr(
1501
prop, "_dbus_annotations", {}))
1502
for name, value in annots.items():
1503
ann_tag = document.createElement(
1504
"annotation")
1505
ann_tag.setAttribute("name", name)
1506
ann_tag.setAttribute("value", value)
1507
tag.appendChild(ann_tag)
1508
689
# Add the names to the return values for the
1509
690
# "org.freedesktop.DBus.Properties" methods
1510
691
if (if_tag.getAttribute("name")
1523
704
xmlstring = document.toxml("utf-8")
1524
705
document.unlink()
1525
706
except (AttributeError, xml.dom.DOMException,
1526
xml.parsers.expat.ExpatError) as error:
1527
logger.error("Failed to override Introspection method",
1528
exc_info=error)
1529
return xmlstring
1530
1531
1532
try:
1533
dbus.OBJECT_MANAGER_IFACE
1534
except AttributeError:
1535
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1536
1537
1538
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1539
"""A D-Bus object with an ObjectManager.
1540
1541
Classes inheriting from this exposes the standard
1542
GetManagedObjects call and the InterfacesAdded and
1543
InterfacesRemoved signals on the standard
1544
"org.freedesktop.DBus.ObjectManager" interface.
1545
1546
Note: No signals are sent automatically; they must be sent
1547
manually.
1548
"""
1549
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1550
out_signature="a{oa{sa{sv}}}")
1551
def GetManagedObjects(self):
1552
"""This function must be overridden"""
1553
raise NotImplementedError()
1554
1555
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1556
signature="oa{sa{sv}}")
1557
def InterfacesAdded(self, object_path, interfaces_and_properties):
1558
pass
1559
1560
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1561
def InterfacesRemoved(self, object_path, interfaces):
1562
pass
1563
1564
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1565
out_signature="s",
1566
path_keyword='object_path',
1567
connection_keyword='connection')
1568
def Introspect(self, object_path, connection):
1569
"""Overloading of standard D-Bus method.
1570
1571
Override return argument name of GetManagedObjects to be
1572
"objpath_interfaces_and_properties"
1573
"""
1574
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1575
object_path,
1576
connection)
1577
try:
1578
document = xml.dom.minidom.parseString(xmlstring)
1579
1580
for if_tag in document.getElementsByTagName("interface"):
1581
# Fix argument name for the GetManagedObjects method
1582
if (if_tag.getAttribute("name")
1583
== dbus.OBJECT_MANAGER_IFACE):
1584
for cn in if_tag.getElementsByTagName("method"):
1585
if (cn.getAttribute("name")
1586
== "GetManagedObjects"):
1587
for arg in cn.getElementsByTagName("arg"):
1588
if (arg.getAttribute("direction")
1589
== "out"):
1590
arg.setAttribute(
1591
"name",
1592
"objpath_interfaces"
1593
"_and_properties")
1594
xmlstring = document.toxml("utf-8")
1595
document.unlink()
1596
except (AttributeError, xml.dom.DOMException,
1597
xml.parsers.expat.ExpatError) as error:
1598
logger.error("Failed to override Introspection method",
1599
exc_info=error)
1600
return xmlstring
1601
1602
1603
def datetime_to_dbus(dt, variant_level=0):
1604
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1605
if dt is None:
1606
return dbus.String("", variant_level=variant_level)
1607
return dbus.String(dt.isoformat(), variant_level=variant_level)
1608
1609
1610
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1611
"""A class decorator; applied to a subclass of
1612
dbus.service.Object, it will add alternate D-Bus attributes with
1613
interface names according to the "alt_interface_names" mapping.
1614
Usage:
1615
1616
@alternate_dbus_interfaces({"org.example.Interface":
1617
"net.example.AlternateInterface"})
1618
class SampleDBusObject(dbus.service.Object):
1619
@dbus.service.method("org.example.Interface")
1620
def SampleDBusMethod():
1621
pass
1622
1623
The above "SampleDBusMethod" on "SampleDBusObject" will be
1624
reachable via two interfaces: "org.example.Interface" and
1625
"net.example.AlternateInterface", the latter of which will have
1626
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1627
"true", unless "deprecate" is passed with a False value.
1628
1629
This works for methods and signals, and also for D-Bus properties
1630
(from DBusObjectWithProperties) and interfaces (from the
1631
dbus_interface_annotations decorator).
1632
"""
1633
1634
def wrapper(cls):
1635
for orig_interface_name, alt_interface_name in (
1636
alt_interface_names.items()):
1637
attr = {}
1638
interface_names = set()
1639
# Go though all attributes of the class
1640
for attrname, attribute in inspect.getmembers(cls):
1641
# Ignore non-D-Bus attributes, and D-Bus attributes
1642
# with the wrong interface name
1643
if (not hasattr(attribute, "_dbus_interface")
1644
or not attribute._dbus_interface.startswith(
1645
orig_interface_name)):
1646
continue
1647
# Create an alternate D-Bus interface name based on
1648
# the current name
1649
alt_interface = attribute._dbus_interface.replace(
1650
orig_interface_name, alt_interface_name)
1651
interface_names.add(alt_interface)
1652
# Is this a D-Bus signal?
1653
if getattr(attribute, "_dbus_is_signal", False):
1654
# Extract the original non-method undecorated
1655
# function by black magic
1656
if sys.version_info.major == 2:
1657
nonmethod_func = (dict(
1658
zip(attribute.func_code.co_freevars,
1659
attribute.__closure__))
1660
["func"].cell_contents)
1661
else:
1662
nonmethod_func = (dict(
1663
zip(attribute.__code__.co_freevars,
1664
attribute.__closure__))
1665
["func"].cell_contents)
1666
# Create a new, but exactly alike, function
1667
# object, and decorate it to be a new D-Bus signal
1668
# with the alternate D-Bus interface name
1669
new_function = copy_function(nonmethod_func)
1670
new_function = (dbus.service.signal(
1671
alt_interface,
1672
attribute._dbus_signature)(new_function))
1673
# Copy annotations, if any
1674
try:
1675
new_function._dbus_annotations = dict(
1676
attribute._dbus_annotations)
1677
except AttributeError:
1678
pass
1679
1680
# Define a creator of a function to call both the
1681
# original and alternate functions, so both the
1682
# original and alternate signals gets sent when
1683
# the function is called
1684
def fixscope(func1, func2):
1685
"""This function is a scope container to pass
1686
func1 and func2 to the "call_both" function
1687
outside of its arguments"""
1688
1689
@functools.wraps(func2)
1690
def call_both(*args, **kwargs):
1691
"""This function will emit two D-Bus
1692
signals by calling func1 and func2"""
1693
func1(*args, **kwargs)
1694
func2(*args, **kwargs)
1695
# Make wrapper function look like a D-Bus
1696
# signal
1697
for name, attr in inspect.getmembers(func2):
1698
if name.startswith("_dbus_"):
1699
setattr(call_both, name, attr)
1700
1701
return call_both
1702
# Create the "call_both" function and add it to
1703
# the class
1704
attr[attrname] = fixscope(attribute, new_function)
1705
# Is this a D-Bus method?
1706
elif getattr(attribute, "_dbus_is_method", False):
1707
# Create a new, but exactly alike, function
1708
# object. Decorate it to be a new D-Bus method
1709
# with the alternate D-Bus interface name. Add it
1710
# to the class.
1711
attr[attrname] = (
1712
dbus.service.method(
1713
alt_interface,
1714
attribute._dbus_in_signature,
1715
attribute._dbus_out_signature)
1716
(copy_function(attribute)))
1717
# Copy annotations, if any
1718
try:
1719
attr[attrname]._dbus_annotations = dict(
1720
attribute._dbus_annotations)
1721
except AttributeError:
1722
pass
1723
# Is this a D-Bus property?
1724
elif getattr(attribute, "_dbus_is_property", False):
1725
# Create a new, but exactly alike, function
1726
# object, and decorate it to be a new D-Bus
1727
# property with the alternate D-Bus interface
1728
# name. Add it to the class.
1729
attr[attrname] = (dbus_service_property(
1730
alt_interface, attribute._dbus_signature,
1731
attribute._dbus_access,
1732
attribute._dbus_get_args_options
1733
["byte_arrays"])
1734
(copy_function(attribute)))
1735
# Copy annotations, if any
1736
try:
1737
attr[attrname]._dbus_annotations = dict(
1738
attribute._dbus_annotations)
1739
except AttributeError:
1740
pass
1741
# Is this a D-Bus interface?
1742
elif getattr(attribute, "_dbus_is_interface", False):
1743
# Create a new, but exactly alike, function
1744
# object. Decorate it to be a new D-Bus interface
1745
# with the alternate D-Bus interface name. Add it
1746
# to the class.
1747
attr[attrname] = (
1748
dbus_interface_annotations(alt_interface)
1749
(copy_function(attribute)))
1750
if deprecate:
1751
# Deprecate all alternate interfaces
1752
iname = "_AlternateDBusNames_interface_annotation{}"
1753
for interface_name in interface_names:
1754
1755
@dbus_interface_annotations(interface_name)
1756
def func(self):
1757
return {"org.freedesktop.DBus.Deprecated":
1758
"true"}
1759
# Find an unused name
1760
for aname in (iname.format(i)
1761
for i in itertools.count()):
1762
if aname not in attr:
1763
attr[aname] = func
1764
break
1765
if interface_names:
1766
# Replace the class with a new subclass of it with
1767
# methods, signals, etc. as created above.
1768
if sys.version_info.major == 2:
1769
cls = type(b"{}Alternate".format(cls.__name__),
1770
(cls, ), attr)
1771
else:
1772
cls = type("{}Alternate".format(cls.__name__),
1773
(cls, ), attr)
1774
return cls
1775
1776
return wrapper
1777
1778
1779
@alternate_dbus_interfaces({"se.recompile.Mandos":
1780
"se.bsnet.fukt.Mandos"})
707
xml.parsers.expat.ExpatError), error:
708
logger.error("Failed to override Introspection method",
709
error)
710
return xmlstring
711
712
1781
713
class ClientDBus(Client, DBusObjectWithProperties):
1782
714
"""A Client class using D-Bus
1783
715
1784
716
Attributes:
1785
717
dbus_object_path: dbus.ObjectPath
1786
718
bus: dbus.SystemBus()
1787
719
"""
1788
720
1789
721
runtime_expansions = (Client.runtime_expansions
1790
+ ("dbus_object_path", ))
1791
1792
_interface = "se.recompile.Mandos.Client"
1793
722
+ ("dbus_object_path",))
723
1794
724
# dbus.service.Object doesn't use super(), so we can't either.
1795
1796
def __init__(self, bus=None, *args, **kwargs):
725
726
def __init__(self, bus = None, *args, **kwargs):
727
self._approvals_pending = 0
1797
728
self.bus = bus
1798
729
Client.__init__(self, *args, **kwargs)
1799
730
# Only now, when this client is initialized, can it show up on
1800
731
# the D-Bus
1801
client_object_name = str(self.name).translate(
732
client_object_name = unicode(self.name).translate(
1802
733
{ord("."): ord("_"),
1803
734
ord("-"): ord("_")})
1804
self.dbus_object_path = dbus.ObjectPath(
1805
"/clients/" + client_object_name)
735
self.dbus_object_path = (dbus.ObjectPath
736
("/clients/" + client_object_name))
1806
737
DBusObjectWithProperties.__init__(self, self.bus,
1807
738
self.dbus_object_path)
1808
1809
def notifychangeproperty(transform_func, dbus_name,
1810
type_func=lambda x: x,
1811
variant_level=1,
1812
invalidate_only=False,
1813
_interface=_interface):
1814
""" Modify a variable so that it's a property which announces
1815
its changes to DBus.
1816
1817
transform_fun: Function that takes a value and a variant_level
1818
and transforms it to a D-Bus type.
1819
dbus_name: D-Bus name of the variable
1820
type_func: Function that transform the value before sending it
1821
to the D-Bus. Default: no transform
1822
variant_level: D-Bus variant level. Default: 1
1823
"""
1824
attrname = "_{}".format(dbus_name)
1825
1826
def setter(self, value):
1827
if hasattr(self, "dbus_object_path"):
1828
if (not hasattr(self, attrname) or
1829
type_func(getattr(self, attrname, None))
1830
!= type_func(value)):
1831
if invalidate_only:
1832
self.PropertiesChanged(
1833
_interface, dbus.Dictionary(),
1834
dbus.Array((dbus_name, )))
1835
else:
1836
dbus_value = transform_func(
1837
type_func(value),
1838
variant_level=variant_level)
1839
self.PropertyChanged(dbus.String(dbus_name),
1840
dbus_value)
1841
self.PropertiesChanged(
1842
_interface,
1843
dbus.Dictionary({dbus.String(dbus_name):
1844
dbus_value}),
1845
dbus.Array())
1846
setattr(self, attrname, value)
1847
1848
return property(lambda self: getattr(self, attrname), setter)
1849
1850
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1851
approvals_pending = notifychangeproperty(dbus.Boolean,
1852
"ApprovalPending",
1853
type_func=bool)
1854
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1855
last_enabled = notifychangeproperty(datetime_to_dbus,
1856
"LastEnabled")
1857
checker = notifychangeproperty(
1858
dbus.Boolean, "CheckerRunning",
1859
type_func=lambda checker: checker is not None)
1860
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1861
"LastCheckedOK")
1862
last_checker_status = notifychangeproperty(dbus.Int16,
1863
"LastCheckerStatus")
1864
last_approval_request = notifychangeproperty(
1865
datetime_to_dbus, "LastApprovalRequest")
1866
approved_by_default = notifychangeproperty(dbus.Boolean,
1867
"ApprovedByDefault")
1868
approval_delay = notifychangeproperty(
1869
dbus.UInt64, "ApprovalDelay",
1870
type_func=lambda td: td.total_seconds() * 1000)
1871
approval_duration = notifychangeproperty(
1872
dbus.UInt64, "ApprovalDuration",
1873
type_func=lambda td: td.total_seconds() * 1000)
1874
host = notifychangeproperty(dbus.String, "Host")
1875
timeout = notifychangeproperty(
1876
dbus.UInt64, "Timeout",
1877
type_func=lambda td: td.total_seconds() * 1000)
1878
extended_timeout = notifychangeproperty(
1879
dbus.UInt64, "ExtendedTimeout",
1880
type_func=lambda td: td.total_seconds() * 1000)
1881
interval = notifychangeproperty(
1882
dbus.UInt64, "Interval",
1883
type_func=lambda td: td.total_seconds() * 1000)
1884
checker_command = notifychangeproperty(dbus.String, "Checker")
1885
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1886
invalidate_only=True)
1887
1888
del notifychangeproperty
1889
739
740
def _get_approvals_pending(self):
741
return self._approvals_pending
742
def _set_approvals_pending(self, value):
743
old_value = self._approvals_pending
744
self._approvals_pending = value
745
bval = bool(value)
746
if (hasattr(self, "dbus_object_path")
747
and bval is not bool(old_value)):
748
dbus_bool = dbus.Boolean(bval, variant_level=1)
749
self.PropertyChanged(dbus.String("ApprovalPending"),
750
dbus_bool)
751
752
approvals_pending = property(_get_approvals_pending,
753
_set_approvals_pending)
754
del _get_approvals_pending, _set_approvals_pending
755
756
@staticmethod
757
def _datetime_to_dbus(dt, variant_level=0):
758
"""Convert a UTC datetime.datetime() to a D-Bus type."""
759
return dbus.String(dt.isoformat(),
760
variant_level=variant_level)
761
762
def enable(self):
763
oldstate = getattr(self, "enabled", False)
764
r = Client.enable(self)
765
if oldstate != self.enabled:
766
# Emit D-Bus signals
767
self.PropertyChanged(dbus.String("Enabled"),
768
dbus.Boolean(True, variant_level=1))
769
self.PropertyChanged(
770
dbus.String("LastEnabled"),
771
self._datetime_to_dbus(self.last_enabled,
772
variant_level=1))
773
return r
774
775
def disable(self, quiet = False):
776
oldstate = getattr(self, "enabled", False)
777
r = Client.disable(self, quiet=quiet)
778
if not quiet and oldstate != self.enabled:
779
# Emit D-Bus signal
780
self.PropertyChanged(dbus.String("Enabled"),
781
dbus.Boolean(False, variant_level=1))
782
return r
783
1890
784
def __del__(self, *args, **kwargs):
1891
785
try:
1892
786
self.remove_from_connection()
1895
789
if hasattr(DBusObjectWithProperties, "__del__"):
1896
790
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1897
791
Client.__del__(self, *args, **kwargs)
1898
1899
def checker_callback(self, source, condition,
1900
connection, command, *args, **kwargs):
1901
ret = Client.checker_callback(self, source, condition,
1902
connection, command, *args,
1903
**kwargs)
1904
exitstatus = self.last_checker_status
1905
if exitstatus >= 0:
792
793
def checker_callback(self, pid, condition, command,
794
*args, **kwargs):
795
self.checker_callback_tag = None
796
self.checker = None
797
# Emit D-Bus signal
798
self.PropertyChanged(dbus.String("CheckerRunning"),
799
dbus.Boolean(False, variant_level=1))
800
if os.WIFEXITED(condition):
801
exitstatus = os.WEXITSTATUS(condition)
1906
802
# Emit D-Bus signal
1907
803
self.CheckerCompleted(dbus.Int16(exitstatus),
1908
# This is specific to GNU libC
1909
dbus.Int64(exitstatus << 8),
804
dbus.Int64(condition),
1910
805
dbus.String(command))
1911
806
else:
1912
807
# Emit D-Bus signal
1913
808
self.CheckerCompleted(dbus.Int16(-1),
1914
dbus.Int64(
1915
# This is specific to GNU libC
1916
(exitstatus << 8)
1917
| self.last_checker_signal),
809
dbus.Int64(condition),
1918
810
dbus.String(command))
1919
return ret
1920
811
812
return Client.checker_callback(self, pid, condition, command,
813
*args, **kwargs)
814
815
def checked_ok(self, *args, **kwargs):
816
r = Client.checked_ok(self, *args, **kwargs)
817
# Emit D-Bus signal
818
self.PropertyChanged(
819
dbus.String("LastCheckedOK"),
820
(self._datetime_to_dbus(self.last_checked_ok,
821
variant_level=1)))
822
return r
823
824
def need_approval(self, *args, **kwargs):
825
r = Client.need_approval(self, *args, **kwargs)
826
# Emit D-Bus signal
827
self.PropertyChanged(
828
dbus.String("LastApprovalRequest"),
829
(self._datetime_to_dbus(self.last_approval_request,
830
variant_level=1)))
831
return r
832
1921
833
def start_checker(self, *args, **kwargs):
1922
old_checker_pid = getattr(self.checker, "pid", None)
834
old_checker = self.checker
835
if self.checker is not None:
836
old_checker_pid = self.checker.pid
837
else:
838
old_checker_pid = None
1923
839
r = Client.start_checker(self, *args, **kwargs)
1924
840
# Only if new checker process was started
1925
841
if (self.checker is not None
1926
842
and old_checker_pid != self.checker.pid):
1927
843
# Emit D-Bus signal
1928
844
self.CheckerStarted(self.current_checker_command)
845
self.PropertyChanged(
846
dbus.String("CheckerRunning"),
847
dbus.Boolean(True, variant_level=1))
848
return r
849
850
def stop_checker(self, *args, **kwargs):
851
old_checker = getattr(self, "checker", None)
852
r = Client.stop_checker(self, *args, **kwargs)
853
if (old_checker is not None
854
and getattr(self, "checker", None) is None):
855
self.PropertyChanged(dbus.String("CheckerRunning"),
856
dbus.Boolean(False, variant_level=1))
1929
857
return r
1930
858
1931
859
def _reset_approved(self):
1932
self.approved = None
860
self._approved = None
1933
861
return False
1934
862
1935
863
def approve(self, value=True):
1936
self.approved = value
1937
GLib.timeout_add(int(self.approval_duration.total_seconds()
1938
* 1000), self._reset_approved)
1939
864
self.send_changedstate()
1940
1941
# D-Bus methods, signals & properties
1942
1943
# Interfaces
1944
1945
# Signals
1946
865
self._approved = value
866
gobject.timeout_add(self._timedelta_to_milliseconds
867
(self.approval_duration),
868
self._reset_approved)
869
870
871
## D-Bus methods, signals & properties
872
_interface = "se.bsnet.fukt.Mandos.Client"
873
874
## Signals
875
1947
876
# CheckerCompleted - signal
1948
877
@dbus.service.signal(_interface, signature="nxs")
1949
878
def CheckerCompleted(self, exitcode, waitstatus, command):
1950
879
"D-Bus signal"
1951
880
pass
1952
881
1953
882
# CheckerStarted - signal
1954
883
@dbus.service.signal(_interface, signature="s")
1955
884
def CheckerStarted(self, command):
1956
885
"D-Bus signal"
1957
886
pass
1958
887
1959
888
# PropertyChanged - signal
1960
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1961
889
@dbus.service.signal(_interface, signature="sv")
1962
890
def PropertyChanged(self, property, value):
1963
891
"D-Bus signal"
1964
892
pass
1965
893
1966
894
# GotSecret - signal
1967
895
@dbus.service.signal(_interface)
1968
896
def GotSecret(self):
1971
899
server to mandos-client
1972
900
"""
1973
901
pass
1974
902
1975
903
# Rejected - signal
1976
904
@dbus.service.signal(_interface, signature="s")
1977
905
def Rejected(self, reason):
1978
906
"D-Bus signal"
1979
907
pass
1980
908
1981
909
# NeedApproval - signal
1982
910
@dbus.service.signal(_interface, signature="tb")
1983
911
def NeedApproval(self, timeout, default):
1984
912
"D-Bus signal"
1985
913
return self.need_approval()
1986
1987
# Methods
1988
914
915
## Methods
916
1989
917
# Approve - method
1990
918
@dbus.service.method(_interface, in_signature="b")
1991
919
def Approve(self, value):
1992
920
self.approve(value)
1993
921
1994
922
# CheckedOK - method
1995
923
@dbus.service.method(_interface)
1996
924
def CheckedOK(self):
1997
self.checked_ok()
1998
925
return self.checked_ok()
926
1999
927
# Enable - method
2000
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2001
928
@dbus.service.method(_interface)
2002
929
def Enable(self):
2003
930
"D-Bus method"
2004
931
self.enable()
2005
932
2006
933
# StartChecker - method
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2008
934
@dbus.service.method(_interface)
2009
935
def StartChecker(self):
2010
936
"D-Bus method"
2011
937
self.start_checker()
2012
938
2013
939
# Disable - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2015
940
@dbus.service.method(_interface)
2016
941
def Disable(self):
2017
942
"D-Bus method"
2018
943
self.disable()
2019
944
2020
945
# StopChecker - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2022
946
@dbus.service.method(_interface)
2023
947
def StopChecker(self):
2024
948
self.stop_checker()
2025
2026
# Properties
2027
949
950
## Properties
951
2028
952
# ApprovalPending - property
2029
953
@dbus_service_property(_interface, signature="b", access="read")
2030
954
def ApprovalPending_dbus_property(self):
2031
955
return dbus.Boolean(bool(self.approvals_pending))
2032
956
2033
957
# ApprovedByDefault - property
2034
@dbus_service_property(_interface,
2035
signature="b",
958
@dbus_service_property(_interface, signature="b",
2036
959
access="readwrite")
2037
960
def ApprovedByDefault_dbus_property(self, value=None):
2038
961
if value is None: # get
2039
962
return dbus.Boolean(self.approved_by_default)
2040
963
self.approved_by_default = bool(value)
2041
964
# Emit D-Bus signal
965
self.PropertyChanged(dbus.String("ApprovedByDefault"),
966
dbus.Boolean(value, variant_level=1))
967
2042
968
# ApprovalDelay - property
2043
@dbus_service_property(_interface,
2044
signature="t",
969
@dbus_service_property(_interface, signature="t",
2045
970
access="readwrite")
2046
971
def ApprovalDelay_dbus_property(self, value=None):
2047
972
if value is None: # get
2048
return dbus.UInt64(self.approval_delay.total_seconds()
2049
* 1000)
973
return dbus.UInt64(self.approval_delay_milliseconds())
2050
974
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2051
975
# Emit D-Bus signal
976
self.PropertyChanged(dbus.String("ApprovalDelay"),
977
dbus.UInt64(value, variant_level=1))
978
2052
979
# ApprovalDuration - property
2053
@dbus_service_property(_interface,
2054
signature="t",
980
@dbus_service_property(_interface, signature="t",
2055
981
access="readwrite")
2056
982
def ApprovalDuration_dbus_property(self, value=None):
2057
983
if value is None: # get
2058
return dbus.UInt64(self.approval_duration.total_seconds()
2059
* 1000)
984
return dbus.UInt64(self._timedelta_to_milliseconds(
985
self.approval_duration))
2060
986
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2061
987
# Emit D-Bus signal
988
self.PropertyChanged(dbus.String("ApprovalDuration"),
989
dbus.UInt64(value, variant_level=1))
990
2062
991
# Name - property
2063
@dbus_annotations(
2064
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2065
992
@dbus_service_property(_interface, signature="s", access="read")
2066
993
def Name_dbus_property(self):
2067
994
return dbus.String(self.name)
2068
2069
# KeyID - property
2070
@dbus_annotations(
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2072
@dbus_service_property(_interface, signature="s", access="read")
2073
def KeyID_dbus_property(self):
2074
return dbus.String(self.key_id)
2075
995
2076
996
# Fingerprint - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
997
@dbus_service_property(_interface, signature="s", access="read")
2080
998
def Fingerprint_dbus_property(self):
2081
999
return dbus.String(self.fingerprint)
2082
1000
2083
1001
# Host - property
2084
@dbus_service_property(_interface,
2085
signature="s",
1002
@dbus_service_property(_interface, signature="s",
2086
1003
access="readwrite")
2087
1004
def Host_dbus_property(self, value=None):
2088
1005
if value is None: # get
2089
1006
return dbus.String(self.host)
2090
self.host = str(value)
2091
1007
self.host = value
1008
# Emit D-Bus signal
1009
self.PropertyChanged(dbus.String("Host"),
1010
dbus.String(value, variant_level=1))
1011
2092
1012
# Created - property
2093
@dbus_annotations(
2094
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2095
1013
@dbus_service_property(_interface, signature="s", access="read")
2096
1014
def Created_dbus_property(self):
2097
return datetime_to_dbus(self.created)
2098
1015
return dbus.String(self._datetime_to_dbus(self.created))
1016
2099
1017
# LastEnabled - property
2100
1018
@dbus_service_property(_interface, signature="s", access="read")
2101
1019
def LastEnabled_dbus_property(self):
2102
return datetime_to_dbus(self.last_enabled)
2103
1020
if self.last_enabled is None:
1021
return dbus.String("")
1022
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1023
2104
1024
# Enabled - property
2105
@dbus_service_property(_interface,
2106
signature="b",
1025
@dbus_service_property(_interface, signature="b",
2107
1026
access="readwrite")
2108
1027
def Enabled_dbus_property(self, value=None):
2109
1028
if value is None: # get
2112
1031
self.enable()
2113
1032
else:
2114
1033
self.disable()
2115
1034
2116
1035
# LastCheckedOK - property
2117
@dbus_service_property(_interface,
2118
signature="s",
1036
@dbus_service_property(_interface, signature="s",
2119
1037
access="readwrite")
2120
1038
def LastCheckedOK_dbus_property(self, value=None):
2121
1039
if value is not None:
2122
1040
self.checked_ok()
2123
1041
return
2124
return datetime_to_dbus(self.last_checked_ok)
2125
2126
# LastCheckerStatus - property
2127
@dbus_service_property(_interface, signature="n", access="read")
2128
def LastCheckerStatus_dbus_property(self):
2129
return dbus.Int16(self.last_checker_status)
2130
2131
# Expires - property
2132
@dbus_service_property(_interface, signature="s", access="read")
2133
def Expires_dbus_property(self):
2134
return datetime_to_dbus(self.expires)
2135
1042
if self.last_checked_ok is None:
1043
return dbus.String("")
1044
return dbus.String(self._datetime_to_dbus(self
1045
.last_checked_ok))
1046
2136
1047
# LastApprovalRequest - property
2137
1048
@dbus_service_property(_interface, signature="s", access="read")
2138
1049
def LastApprovalRequest_dbus_property(self):
2139
return datetime_to_dbus(self.last_approval_request)
2140
1050
if self.last_approval_request is None:
1051
return dbus.String("")
1052
return dbus.String(self.
1053
_datetime_to_dbus(self
1054
.last_approval_request))
1055
2141
1056
# Timeout - property
2142
@dbus_service_property(_interface,
2143
signature="t",
1057
@dbus_service_property(_interface, signature="t",
2144
1058
access="readwrite")
2145
1059
def Timeout_dbus_property(self, value=None):
2146
1060
if value is None: # get
2147
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2148
old_timeout = self.timeout
1061
return dbus.UInt64(self.timeout_milliseconds())
2149
1062
self.timeout = datetime.timedelta(0, 0, 0, value)
2150
# Reschedule disabling
2151
if self.enabled:
2152
now = datetime.datetime.utcnow()
2153
self.expires += self.timeout - old_timeout
2154
if self.expires <= now:
2155
# The timeout has passed
2156
self.disable()
2157
else:
2158
if (getattr(self, "disable_initiator_tag", None)
2159
is None):
2160
return
2161
GLib.source_remove(self.disable_initiator_tag)
2162
self.disable_initiator_tag = GLib.timeout_add(
2163
int((self.expires - now).total_seconds() * 1000),
2164
self.disable)
2165
2166
# ExtendedTimeout - property
2167
@dbus_service_property(_interface,
2168
signature="t",
2169
access="readwrite")
2170
def ExtendedTimeout_dbus_property(self, value=None):
2171
if value is None: # get
2172
return dbus.UInt64(self.extended_timeout.total_seconds()
2173
* 1000)
2174
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2175
1063
# Emit D-Bus signal
1064
self.PropertyChanged(dbus.String("Timeout"),
1065
dbus.UInt64(value, variant_level=1))
1066
if getattr(self, "disable_initiator_tag", None) is None:
1067
return
1068
# Reschedule timeout
1069
gobject.source_remove(self.disable_initiator_tag)
1070
self.disable_initiator_tag = None
1071
time_to_die = (self.
1072
_timedelta_to_milliseconds((self
1073
.last_checked_ok
1074
+ self.timeout)
1075
- datetime.datetime
1076
.utcnow()))
1077
if time_to_die <= 0:
1078
# The timeout has passed
1079
self.disable()
1080
else:
1081
self.disable_initiator_tag = (gobject.timeout_add
1082
(time_to_die, self.disable))
1083
2176
1084
# Interval - property
2177
@dbus_service_property(_interface,
2178
signature="t",
1085
@dbus_service_property(_interface, signature="t",
2179
1086
access="readwrite")
2180
1087
def Interval_dbus_property(self, value=None):
2181
1088
if value is None: # get
2182
return dbus.UInt64(self.interval.total_seconds() * 1000)
1089
return dbus.UInt64(self.interval_milliseconds())
2183
1090
self.interval = datetime.timedelta(0, 0, 0, value)
1091
# Emit D-Bus signal
1092
self.PropertyChanged(dbus.String("Interval"),
1093
dbus.UInt64(value, variant_level=1))
2184
1094
if getattr(self, "checker_initiator_tag", None) is None:
2185
1095
return
2186
if self.enabled:
2187
# Reschedule checker run
2188
GLib.source_remove(self.checker_initiator_tag)
2189
self.checker_initiator_tag = GLib.timeout_add(
2190
value, self.start_checker)
2191
self.start_checker() # Start one now, too
1096
# Reschedule checker run
1097
gobject.source_remove(self.checker_initiator_tag)
1098
self.checker_initiator_tag = (gobject.timeout_add
1099
(value, self.start_checker))
1100
self.start_checker() # Start one now, too
2192
1101
2193
1102
# Checker - property
2194
@dbus_service_property(_interface,
2195
signature="s",
1103
@dbus_service_property(_interface, signature="s",
2196
1104
access="readwrite")
2197
1105
def Checker_dbus_property(self, value=None):
2198
1106
if value is None: # get
2199
1107
return dbus.String(self.checker_command)
2200
self.checker_command = str(value)
2201
1108
self.checker_command = value
1109
# Emit D-Bus signal
1110
self.PropertyChanged(dbus.String("Checker"),
1111
dbus.String(self.checker_command,
1112
variant_level=1))
1113
2202
1114
# CheckerRunning - property
2203
@dbus_service_property(_interface,
2204
signature="b",
1115
@dbus_service_property(_interface, signature="b",
2205
1116
access="readwrite")
2206
1117
def CheckerRunning_dbus_property(self, value=None):
2207
1118
if value is None: # get
2210
1121
self.start_checker()
2211
1122
else:
2212
1123
self.stop_checker()
2213
1124
2214
1125
# ObjectPath - property
2215
@dbus_annotations(
2216
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2217
"org.freedesktop.DBus.Deprecated": "true"})
2218
1126
@dbus_service_property(_interface, signature="o", access="read")
2219
1127
def ObjectPath_dbus_property(self):
2220
return self.dbus_object_path # is already a dbus.ObjectPath
2221
1128
return self.dbus_object_path # is already a dbus.ObjectPath
1129
2222
1130
# Secret = property
2223
@dbus_annotations(
2224
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2225
"invalidates"})
2226
@dbus_service_property(_interface,
2227
signature="ay",
2228
access="write",
2229
byte_arrays=True)
1131
@dbus_service_property(_interface, signature="ay",
1132
access="write", byte_arrays=True)
2230
1133
def Secret_dbus_property(self, value):
2231
self.secret = bytes(value)
2232
1134
self.secret = str(value)
1135
2233
1136
del _interface
2234
1137
2235
1138
2236
class ProxyClient:
2237
def __init__(self, child_pipe, key_id, fpr, address):
1139
class ProxyClient(object):
1140
def __init__(self, child_pipe, fpr, address):
2238
1141
self._pipe = child_pipe
2239
self._pipe.send(('init', key_id, fpr, address))
1142
self._pipe.send(('init', fpr, address))
2240
1143
if not self._pipe.recv():
2241
raise KeyError(key_id or fpr)
1144
raise KeyError()
2242
1145
2243
1146
def __getattribute__(self, name):
2244
if name == '_pipe':
1147
if(name == '_pipe'):
2245
1148
return super(ProxyClient, self).__getattribute__(name)
2246
1149
self._pipe.send(('getattr', name))
2247
1150
data = self._pipe.recv()
2248
1151
if data[0] == 'data':
2249
1152
return data[1]
2250
1153
if data[0] == 'function':
2251
2252
1154
def func(*args, **kwargs):
2253
1155
self._pipe.send(('funcall', name, args, kwargs))
2254
1156
return self._pipe.recv()[1]
2255
2256
1157
return func
2257
1158
2258
1159
def __setattr__(self, name, value):
2259
if name == '_pipe':
1160
if(name == '_pipe'):
2260
1161
return super(ProxyClient, self).__setattr__(name, value)
2261
1162
self._pipe.send(('setattr', name, value))
2262
1163
2263
1164
2264
1165
class ClientHandler(socketserver.BaseRequestHandler, object):
2265
1166
"""A class to handle client connections.
2266
1167
2267
1168
Instantiated once for each connection to handle it.
2268
1169
Note: This will run in its own forked process."""
2269
1170
2270
1171
def handle(self):
2271
1172
with contextlib.closing(self.server.child_pipe) as child_pipe:
2272
1173
logger.info("TCP connection from: %s",
2273
str(self.client_address))
1174
unicode(self.client_address))
2274
1175
logger.debug("Pipe FD: %d",
2275
1176
self.server.child_pipe.fileno())
2276
1177
2277
session = gnutls.ClientSession(self.request)
2278
2279
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2280
# "+AES-256-CBC", "+SHA1",
2281
# "+COMP-NULL", "+CTYPE-OPENPGP",
2282
# "+DHE-DSS"))
1178
session = (gnutls.connection
1179
.ClientSession(self.request,
1180
gnutls.connection
1181
.X509Credentials()))
1182
1183
# Note: gnutls.connection.X509Credentials is really a
1184
# generic GnuTLS certificate credentials object so long as
1185
# no X.509 keys are added to it. Therefore, we can use it
1186
# here despite using OpenPGP certificates.
1187
1188
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1189
# "+AES-256-CBC", "+SHA1",
1190
# "+COMP-NULL", "+CTYPE-OPENPGP",
1191
# "+DHE-DSS"))
2283
1192
# Use a fallback default, since this MUST be set.
2284
1193
priority = self.server.gnutls_priority
2285
1194
if priority is None:
2286
1195
priority = "NORMAL"
2287
gnutls.priority_set_direct(session._c_object,
2288
priority.encode("utf-8"),
2289
None)
1196
(gnutls.library.functions
1197
.gnutls_priority_set_direct(session._c_object,
1198
priority, None))
2290
1199
2291
1200
# Start communication using the Mandos protocol
2292
1201
# Get protocol number
2294
1203
logger.debug("Protocol version: %r", line)
2295
1204
try:
2296
1205
if int(line.strip().split()[0]) > 1:
2297
raise RuntimeError(line)
2298
except (ValueError, IndexError, RuntimeError) as error:
1206
raise RuntimeError
1207
except (ValueError, IndexError, RuntimeError), error:
2299
1208
logger.error("Unknown protocol version: %s", error)
2300
1209
return
2301
1210
2302
1211
# Start GnuTLS connection
2303
1212
try:
2304
1213
session.handshake()
2305
except gnutls.Error as error:
1214
except gnutls.errors.GNUTLSError, error:
2306
1215
logger.warning("Handshake failed: %s", error)
2307
1216
# Do not run session.bye() here: the session is not
2308
1217
# established. Just abandon the request.
2311
1220
2312
1221
approval_required = False
2313
1222
try:
2314
if gnutls.has_rawpk:
2315
fpr = b""
2316
try:
2317
key_id = self.key_id(
2318
self.peer_certificate(session))
2319
except (TypeError, gnutls.Error) as error:
2320
logger.warning("Bad certificate: %s", error)
2321
return
2322
logger.debug("Key ID: %s", key_id)
2323
2324
else:
2325
key_id = b""
2326
try:
2327
fpr = self.fingerprint(
2328
self.peer_certificate(session))
2329
except (TypeError, gnutls.Error) as error:
2330
logger.warning("Bad certificate: %s", error)
2331
return
2332
logger.debug("Fingerprint: %s", fpr)
2333
2334
try:
2335
client = ProxyClient(child_pipe, key_id, fpr,
1223
try:
1224
fpr = self.fingerprint(self.peer_certificate
1225
(session))
1226
except (TypeError, gnutls.errors.GNUTLSError), error:
1227
logger.warning("Bad certificate: %s", error)
1228
return
1229
logger.debug("Fingerprint: %s", fpr)
1230
1231
try:
1232
client = ProxyClient(child_pipe, fpr,
2336
1233
self.client_address)
2337
1234
except KeyError:
2338
1235
return
2339
1236
2340
1237
if client.approval_delay:
2341
1238
delay = client.approval_delay
2342
1239
client.approvals_pending += 1
2343
1240
approval_required = True
2344
1241
2345
1242
while True:
2346
1243
if not client.enabled:
2347
logger.info("Client %s is disabled",
2348
client.name)
1244
logger.warning("Client %s is disabled",
1245
client.name)
2349
1246
if self.server.use_dbus:
2350
1247
# Emit D-Bus signal
2351
client.Rejected("Disabled")
1248
client.Rejected("Disabled")
2352
1249
return
2353
2354
if client.approved or not client.approval_delay:
2355
# We are approved or approval is disabled
1250
1251
if client._approved or not client.approval_delay:
1252
#We are approved or approval is disabled
2356
1253
break
2357
elif client.approved is None:
1254
elif client._approved is None:
2358
1255
logger.info("Client %s needs approval",
2359
1256
client.name)
2360
1257
if self.server.use_dbus:
2361
1258
# Emit D-Bus signal
2362
1259
client.NeedApproval(
2363
client.approval_delay.total_seconds()
2364
* 1000, client.approved_by_default)
1260
client.approval_delay_milliseconds(),
1261
client.approved_by_default)
2365
1262
else:
2366
1263
logger.warning("Client %s was not approved",
2367
1264
client.name)
2369
1266
# Emit D-Bus signal
2370
1267
client.Rejected("Denied")
2371
1268
return
2372
2373
# wait until timeout or approved
1269
1270
#wait until timeout or approved
1271
#x = float(client._timedelta_to_milliseconds(delay))
2374
1272
time = datetime.datetime.now()
2375
1273
client.changedstate.acquire()
2376
client.changedstate.wait(delay.total_seconds())
1274
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
2377
1275
client.changedstate.release()
2378
1276
time2 = datetime.datetime.now()
2379
1277
if (time2 - time) >= delay:
2389
1287
break
2390
1288
else:
2391
1289
delay -= time2 - time
2392
2393
try:
2394
session.send(client.secret)
2395
except gnutls.Error as error:
2396
logger.warning("gnutls send failed",
2397
exc_info=error)
2398
return
1290
1291
sent_size = 0
1292
while sent_size < len(client.secret):
1293
try:
1294
sent = session.send(client.secret[sent_size:])
1295
except (gnutls.errors.GNUTLSError), error:
1296
logger.warning("gnutls send failed")
1297
return
1298
logger.debug("Sent: %d, remaining: %d",
1299
sent, len(client.secret)
1300
- (sent_size + sent))
1301
sent_size += sent
2399
1302
2400
1303
logger.info("Sending secret to %s", client.name)
2401
# bump the timeout using extended_timeout
2402
client.bump_timeout(client.extended_timeout)
1304
# bump the timeout as if seen
1305
client.checked_ok()
2403
1306
if self.server.use_dbus:
2404
1307
# Emit D-Bus signal
2405
1308
client.GotSecret()
2406
1309
2407
1310
finally:
2408
1311
if approval_required:
2409
1312
client.approvals_pending -= 1
2410
1313
try:
2411
1314
session.bye()
2412
except gnutls.Error as error:
2413
logger.warning("GnuTLS bye failed",
2414
exc_info=error)
2415
1315
except (gnutls.errors.GNUTLSError), error:
1316
logger.warning("GnuTLS bye failed")
1317
2416
1318
@staticmethod
2417
1319
def peer_certificate(session):
2418
"Return the peer's certificate as a bytestring"
2419
try:
2420
cert_type = gnutls.certificate_type_get2(session._c_object,
2421
gnutls.CTYPE_PEERS)
2422
except AttributeError:
2423
cert_type = gnutls.certificate_type_get(session._c_object)
2424
if gnutls.has_rawpk:
2425
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2426
else:
2427
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2428
# If not a valid certificate type...
2429
if cert_type not in valid_cert_types:
2430
logger.info("Cert type %r not in %r", cert_type,
2431
valid_cert_types)
2432
# ...return invalid data
2433
return b""
1320
"Return the peer's OpenPGP certificate as a bytestring"
1321
# If not an OpenPGP certificate...
1322
if (gnutls.library.functions
1323
.gnutls_certificate_type_get(session._c_object)
1324
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1325
# ...do the normal thing
1326
return session.peer_certificate
2434
1327
list_size = ctypes.c_uint(1)
2435
cert_list = (gnutls.certificate_get_peers
1328
cert_list = (gnutls.library.functions
1329
.gnutls_certificate_get_peers
2436
1330
(session._c_object, ctypes.byref(list_size)))
2437
1331
if not bool(cert_list) and list_size.value != 0:
2438
raise gnutls.Error("error getting peer certificate")
1332
raise gnutls.errors.GNUTLSError("error getting peer"
1333
" certificate")
2439
1334
if list_size.value == 0:
2440
1335
return None
2441
1336
cert = cert_list[0]
2442
1337
return ctypes.string_at(cert.data, cert.size)
2443
2444
@staticmethod
2445
def key_id(certificate):
2446
"Convert a certificate bytestring to a hexdigit key ID"
2447
# New GnuTLS "datum" with the public key
2448
datum = gnutls.datum_t(
2449
ctypes.cast(ctypes.c_char_p(certificate),
2450
ctypes.POINTER(ctypes.c_ubyte)),
2451
ctypes.c_uint(len(certificate)))
2452
# XXX all these need to be created in the gnutls "module"
2453
# New empty GnuTLS certificate
2454
pubkey = gnutls.pubkey_t()
2455
gnutls.pubkey_init(ctypes.byref(pubkey))
2456
# Import the raw public key into the certificate
2457
gnutls.pubkey_import(pubkey,
2458
ctypes.byref(datum),
2459
gnutls.X509_FMT_DER)
2460
# New buffer for the key ID
2461
buf = ctypes.create_string_buffer(32)
2462
buf_len = ctypes.c_size_t(len(buf))
2463
# Get the key ID from the raw public key into the buffer
2464
gnutls.pubkey_get_key_id(pubkey,
2465
gnutls.KEYID_USE_SHA256,
2466
ctypes.cast(ctypes.byref(buf),
2467
ctypes.POINTER(ctypes.c_ubyte)),
2468
ctypes.byref(buf_len))
2469
# Deinit the certificate
2470
gnutls.pubkey_deinit(pubkey)
2471
2472
# Convert the buffer to a Python bytestring
2473
key_id = ctypes.string_at(buf, buf_len.value)
2474
# Convert the bytestring to hexadecimal notation
2475
hex_key_id = binascii.hexlify(key_id).upper()
2476
return hex_key_id
2477
1338
2478
1339
@staticmethod
2479
1340
def fingerprint(openpgp):
2480
1341
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2481
1342
# New GnuTLS "datum" with the OpenPGP public key
2482
datum = gnutls.datum_t(
2483
ctypes.cast(ctypes.c_char_p(openpgp),
2484
ctypes.POINTER(ctypes.c_ubyte)),
2485
ctypes.c_uint(len(openpgp)))
1343
datum = (gnutls.library.types
1344
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1345
ctypes.POINTER
1346
(ctypes.c_ubyte)),
1347
ctypes.c_uint(len(openpgp))))
2486
1348
# New empty GnuTLS certificate
2487
crt = gnutls.openpgp_crt_t()
2488
gnutls.openpgp_crt_init(ctypes.byref(crt))
1349
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1350
(gnutls.library.functions
1351
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2489
1352
# Import the OpenPGP public key into the certificate
2490
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2491
gnutls.OPENPGP_FMT_RAW)
1353
(gnutls.library.functions
1354
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1355
gnutls.library.constants
1356
.GNUTLS_OPENPGP_FMT_RAW))
2492
1357
# Verify the self signature in the key
2493
1358
crtverify = ctypes.c_uint()
2494
gnutls.openpgp_crt_verify_self(crt, 0,
2495
ctypes.byref(crtverify))
1359
(gnutls.library.functions
1360
.gnutls_openpgp_crt_verify_self(crt, 0,
1361
ctypes.byref(crtverify)))
2496
1362
if crtverify.value != 0:
2497
gnutls.openpgp_crt_deinit(crt)
2498
raise gnutls.CertificateSecurityError(code
2499
=crtverify.value)
1363
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1364
raise (gnutls.errors.CertificateSecurityError
1365
("Verify failed"))
2500
1366
# New buffer for the fingerprint
2501
1367
buf = ctypes.create_string_buffer(20)
2502
1368
buf_len = ctypes.c_size_t()
2503
1369
# Get the fingerprint from the certificate into the buffer
2504
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2505
ctypes.byref(buf_len))
1370
(gnutls.library.functions
1371
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1372
ctypes.byref(buf_len)))
2506
1373
# Deinit the certificate
2507
gnutls.openpgp_crt_deinit(crt)
1374
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2508
1375
# Convert the buffer to a Python bytestring
2509
1376
fpr = ctypes.string_at(buf, buf_len.value)
2510
1377
# Convert the bytestring to hexadecimal notation
2511
hex_fpr = binascii.hexlify(fpr).upper()
1378
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2512
1379
return hex_fpr
2513
1380
2514
1381
2515
class MultiprocessingMixIn:
1382
class MultiprocessingMixIn(object):
2516
1383
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2517
2518
1384
def sub_process_main(self, request, address):
2519
1385
try:
2520
1386
self.finish_request(request, address)
2521
except Exception:
1387
except:
2522
1388
self.handle_error(request, address)
2523
1389
self.close_request(request)
2524
1390
2525
1391
def process_request(self, request, address):
2526
1392
"""Start a new process to process the request."""
2527
proc = multiprocessing.Process(target=self.sub_process_main,
2528
args=(request, address))
2529
proc.start()
2530
return proc
2531
2532
2533
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1393
multiprocessing.Process(target = self.sub_process_main,
1394
args = (request, address)).start()
1395
1396
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2534
1397
""" adds a pipe to the MixIn """
2535
2536
1398
def process_request(self, request, client_address):
2537
1399
"""Overrides and wraps the original process_request().
2538
1400
2539
1401
This function creates a new pipe in self.pipe
2540
1402
"""
2541
1403
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2542
1404
2543
proc = MultiprocessingMixIn.process_request(self, request,
2544
client_address)
1405
super(MultiprocessingMixInWithPipe,
1406
self).process_request(request, client_address)
2545
1407
self.child_pipe.close()
2546
self.add_pipe(parent_pipe, proc)
1408
self.add_pipe(parent_pipe)
2547
1409
2548
def add_pipe(self, parent_pipe, proc):
1410
def add_pipe(self, parent_pipe):
2549
1411
"""Dummy function; override as necessary"""
2550
raise NotImplementedError()
2551
1412
raise NotImplementedError
2552
1413
2553
1414
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2554
socketserver.TCPServer):
1415
socketserver.TCPServer, object):
2555
1416
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2556
1417
2557
1418
Attributes:
2558
1419
enabled: Boolean; whether this server is activated yet
2559
1420
interface: None or a network interface name (string)
2560
1421
use_ipv6: Boolean; to use IPv6 or not
2561
1422
"""
2562
2563
1423
def __init__(self, server_address, RequestHandlerClass,
2564
interface=None,
2565
use_ipv6=True,
2566
socketfd=None):
2567
"""If socketfd is set, use that file descriptor instead of
2568
creating a new one with socket.socket().
2569
"""
1424
interface=None, use_ipv6=True):
2570
1425
self.interface = interface
2571
1426
if use_ipv6:
2572
1427
self.address_family = socket.AF_INET6
2573
if socketfd is not None:
2574
# Save the file descriptor
2575
self.socketfd = socketfd
2576
# Save the original socket.socket() function
2577
self.socket_socket = socket.socket
2578
2579
# To implement --socket, we monkey patch socket.socket.
2580
#
2581
# (When socketserver.TCPServer is a new-style class, we
2582
# could make self.socket into a property instead of monkey
2583
# patching socket.socket.)
2584
#
2585
# Create a one-time-only replacement for socket.socket()
2586
@functools.wraps(socket.socket)
2587
def socket_wrapper(*args, **kwargs):
2588
# Restore original function so subsequent calls are
2589
# not affected.
2590
socket.socket = self.socket_socket
2591
del self.socket_socket
2592
# This time only, return a new socket object from the
2593
# saved file descriptor.
2594
return socket.fromfd(self.socketfd, *args, **kwargs)
2595
# Replace socket.socket() function with wrapper
2596
socket.socket = socket_wrapper
2597
# The socketserver.TCPServer.__init__ will call
2598
# socket.socket(), which might be our replacement,
2599
# socket_wrapper(), if socketfd was set.
2600
1428
socketserver.TCPServer.__init__(self, server_address,
2601
1429
RequestHandlerClass)
2602
2603
1430
def server_bind(self):
2604
1431
"""This overrides the normal server_bind() function
2605
1432
to bind to an interface if one was specified, and also NOT to
2606
1433
bind to an address or port if they were not specified."""
2607
global SO_BINDTODEVICE
2608
1434
if self.interface is not None:
2609
1435
if SO_BINDTODEVICE is None:
2610
# Fall back to a hard-coded value which seems to be
2611
# common enough.
2612
logger.warning("SO_BINDTODEVICE not found, trying 25")
2613
SO_BINDTODEVICE = 25
2614
try:
2615
self.socket.setsockopt(
2616
socket.SOL_SOCKET, SO_BINDTODEVICE,
2617
(self.interface + "\0").encode("utf-8"))
2618
except socket.error as error:
2619
if error.errno == errno.EPERM:
2620
logger.error("No permission to bind to"
2621
" interface %s", self.interface)
2622
elif error.errno == errno.ENOPROTOOPT:
2623
logger.error("SO_BINDTODEVICE not available;"
2624
" cannot bind to interface %s",
2625
self.interface)
2626
elif error.errno == errno.ENODEV:
2627
logger.error("Interface %s does not exist,"
2628
" cannot bind", self.interface)
2629
else:
2630
raise
1436
logger.error("SO_BINDTODEVICE does not exist;"
1437
" cannot bind to interface %s",
1438
self.interface)
1439
else:
1440
try:
1441
self.socket.setsockopt(socket.SOL_SOCKET,
1442
SO_BINDTODEVICE,
1443
str(self.interface
1444
+ '\0'))
1445
except socket.error, error:
1446
if error[0] == errno.EPERM:
1447
logger.error("No permission to"
1448
" bind to interface %s",
1449
self.interface)
1450
elif error[0] == errno.ENOPROTOOPT:
1451
logger.error("SO_BINDTODEVICE not available;"
1452
" cannot bind to interface %s",
1453
self.interface)
1454
else:
1455
raise
2631
1456
# Only bind(2) the socket if we really need to.
2632
1457
if self.server_address[0] or self.server_address[1]:
2633
if self.server_address[1]:
2634
self.allow_reuse_address = True
2635
1458
if not self.server_address[0]:
2636
1459
if self.address_family == socket.AF_INET6:
2637
any_address = "::" # in6addr_any
1460
any_address = "::" # in6addr_any
2638
1461
else:
2639
any_address = "0.0.0.0" # INADDR_ANY
1462
any_address = socket.INADDR_ANY
2640
1463
self.server_address = (any_address,
2641
1464
self.server_address[1])
2642
1465
elif not self.server_address[1]:
2643
self.server_address = (self.server_address[0], 0)
1466
self.server_address = (self.server_address[0],
1467
0)
2644
1468
# if self.interface:
2645
1469
# self.server_address = (self.server_address[0],
2646
1470
# 0, # port
2652
1476
2653
1477
class MandosServer(IPv6_TCPServer):
2654
1478
"""Mandos server.
2655
1479
2656
1480
Attributes:
2657
1481
clients: set of Client objects
2658
1482
gnutls_priority GnuTLS priority string
2659
1483
use_dbus: Boolean; to emit D-Bus signals or not
2660
2661
Assumes a GLib.MainLoop event loop.
1484
1485
Assumes a gobject.MainLoop event loop.
2662
1486
"""
2663
2664
1487
def __init__(self, server_address, RequestHandlerClass,
2665
interface=None,
2666
use_ipv6=True,
2667
clients=None,
2668
gnutls_priority=None,
2669
use_dbus=True,
2670
socketfd=None):
1488
interface=None, use_ipv6=True, clients=None,
1489
gnutls_priority=None, use_dbus=True):
2671
1490
self.enabled = False
2672
1491
self.clients = clients
2673
1492
if self.clients is None:
2674
self.clients = {}
1493
self.clients = set()
2675
1494
self.use_dbus = use_dbus
2676
1495
self.gnutls_priority = gnutls_priority
2677
1496
IPv6_TCPServer.__init__(self, server_address,
2678
1497
RequestHandlerClass,
2679
interface=interface,
2680
use_ipv6=use_ipv6,
2681
socketfd=socketfd)
2682
1498
interface = interface,
1499
use_ipv6 = use_ipv6)
2683
1500
def server_activate(self):
2684
1501
if self.enabled:
2685
1502
return socketserver.TCPServer.server_activate(self)
2686
2687
1503
def enable(self):
2688
1504
self.enabled = True
2689
2690
def add_pipe(self, parent_pipe, proc):
1505
def add_pipe(self, parent_pipe):
2691
1506
# Call "handle_ipc" for both data and EOF events
2692
GLib.io_add_watch(
2693
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2694
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2695
functools.partial(self.handle_ipc,
2696
parent_pipe=parent_pipe,
2697
proc=proc))
2698
2699
def handle_ipc(self, source, condition,
2700
parent_pipe=None,
2701
proc=None,
1507
gobject.io_add_watch(parent_pipe.fileno(),
1508
gobject.IO_IN | gobject.IO_HUP,
1509
functools.partial(self.handle_ipc,
1510
parent_pipe = parent_pipe))
1511
1512
def handle_ipc(self, source, condition, parent_pipe=None,
2702
1513
client_object=None):
2703
# error, or the other end of multiprocessing.Pipe has closed
2704
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2705
# Wait for other process to exit
2706
proc.join()
1514
condition_names = {
1515
gobject.IO_IN: "IN", # There is data to read.
1516
gobject.IO_OUT: "OUT", # Data can be written (without
1517
# blocking).
1518
gobject.IO_PRI: "PRI", # There is urgent data to read.
1519
gobject.IO_ERR: "ERR", # Error condition.
1520
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1521
# broken, usually for pipes and
1522
# sockets).
1523
}
1524
conditions_string = ' | '.join(name
1525
for cond, name in
1526
condition_names.iteritems()
1527
if cond & condition)
1528
# error or the other end of multiprocessing.Pipe has closed
1529
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2707
1530
return False
2708
1531
2709
1532
# Read a request from the child
2710
1533
request = parent_pipe.recv()
2711
1534
command = request[0]
2712
1535
2713
1536
if command == 'init':
2714
key_id = request[1].decode("ascii")
2715
fpr = request[2].decode("ascii")
2716
address = request[3]
2717
2718
for c in self.clients.values():
2719
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2720
continue
2721
if key_id and c.key_id == key_id:
2722
client = c
2723
break
2724
if fpr and c.fingerprint == fpr:
1537
fpr = request[1]
1538
address = request[2]
1539
1540
for c in self.clients:
1541
if c.fingerprint == fpr:
2725
1542
client = c
2726
1543
break
2727
1544
else:
2728
logger.info("Client not found for key ID: %s, address"
2729
": %s", key_id or fpr, address)
1545
logger.warning("Client not found for fingerprint: %s, ad"
1546
"dress: %s", fpr, address)
2730
1547
if self.use_dbus:
2731
1548
# Emit D-Bus signal
2732
mandos_dbus_service.ClientNotFound(key_id or fpr,
2733
address[0])
1549
mandos_dbus_service.ClientNotFound(fpr, address[0])
2734
1550
parent_pipe.send(False)
2735
1551
return False
2736
2737
GLib.io_add_watch(
2738
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2739
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2740
functools.partial(self.handle_ipc,
2741
parent_pipe=parent_pipe,
2742
proc=proc,
2743
client_object=client))
1552
1553
gobject.io_add_watch(parent_pipe.fileno(),
1554
gobject.IO_IN | gobject.IO_HUP,
1555
functools.partial(self.handle_ipc,
1556
parent_pipe = parent_pipe,
1557
client_object = client))
2744
1558
parent_pipe.send(True)
2745
# remove the old hook in favor of the new above hook on
2746
# same fileno
1559
# remove the old hook in favor of the new above hook on same fileno
2747
1560
return False
2748
1561
if command == 'funcall':
2749
1562
funcname = request[1]
2750
1563
args = request[2]
2751
1564
kwargs = request[3]
2752
2753
parent_pipe.send(('data', getattr(client_object,
2754
funcname)(*args,
2755
**kwargs)))
1565
1566
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2756
1567
2757
1568
if command == 'getattr':
2758
1569
attrname = request[1]
2759
if isinstance(client_object.__getattribute__(attrname),
2760
collections.abc.Callable):
2761
parent_pipe.send(('function', ))
1570
if callable(client_object.__getattribute__(attrname)):
1571
parent_pipe.send(('function',))
2762
1572
else:
2763
parent_pipe.send((
2764
'data', client_object.__getattribute__(attrname)))
2765
1573
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1574
2766
1575
if command == 'setattr':
2767
1576
attrname = request[1]
2768
1577
value = request[2]
2771
1580
return True
2772
1581
2773
1582
2774
def rfc3339_duration_to_delta(duration):
2775
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2776
2777
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2778
True
2779
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2780
True
2781
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2782
True
2783
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2784
True
2785
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2786
True
2787
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2788
True
2789
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2790
True
2791
"""
2792
2793
# Parsing an RFC 3339 duration with regular expressions is not
2794
# possible - there would have to be multiple places for the same
2795
# values, like seconds. The current code, while more esoteric, is
2796
# cleaner without depending on a parsing library. If Python had a
2797
# built-in library for parsing we would use it, but we'd like to
2798
# avoid excessive use of external libraries.
2799
2800
# New type for defining tokens, syntax, and semantics all-in-one
2801
Token = collections.namedtuple("Token", (
2802
"regexp", # To match token; if "value" is not None, must have
2803
# a "group" containing digits
2804
"value", # datetime.timedelta or None
2805
"followers")) # Tokens valid after this token
2806
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2807
# the "duration" ABNF definition in RFC 3339, Appendix A.
2808
token_end = Token(re.compile(r"$"), None, frozenset())
2809
token_second = Token(re.compile(r"(\d+)S"),
2810
datetime.timedelta(seconds=1),
2811
frozenset((token_end, )))
2812
token_minute = Token(re.compile(r"(\d+)M"),
2813
datetime.timedelta(minutes=1),
2814
frozenset((token_second, token_end)))
2815
token_hour = Token(re.compile(r"(\d+)H"),
2816
datetime.timedelta(hours=1),
2817
frozenset((token_minute, token_end)))
2818
token_time = Token(re.compile(r"T"),
2819
None,
2820
frozenset((token_hour, token_minute,
2821
token_second)))
2822
token_day = Token(re.compile(r"(\d+)D"),
2823
datetime.timedelta(days=1),
2824
frozenset((token_time, token_end)))
2825
token_month = Token(re.compile(r"(\d+)M"),
2826
datetime.timedelta(weeks=4),
2827
frozenset((token_day, token_end)))
2828
token_year = Token(re.compile(r"(\d+)Y"),
2829
datetime.timedelta(weeks=52),
2830
frozenset((token_month, token_end)))
2831
token_week = Token(re.compile(r"(\d+)W"),
2832
datetime.timedelta(weeks=1),
2833
frozenset((token_end, )))
2834
token_duration = Token(re.compile(r"P"), None,
2835
frozenset((token_year, token_month,
2836
token_day, token_time,
2837
token_week)))
2838
# Define starting values:
2839
# Value so far
2840
value = datetime.timedelta()
2841
found_token = None
2842
# Following valid tokens
2843
followers = frozenset((token_duration, ))
2844
# String left to parse
2845
s = duration
2846
# Loop until end token is found
2847
while found_token is not token_end:
2848
# Search for any currently valid tokens
2849
for token in followers:
2850
match = token.regexp.match(s)
2851
if match is not None:
2852
# Token found
2853
if token.value is not None:
2854
# Value found, parse digits
2855
factor = int(match.group(1), 10)
2856
# Add to value so far
2857
value += factor * token.value
2858
# Strip token from string
2859
s = token.regexp.sub("", s, 1)
2860
# Go to found token
2861
found_token = token
2862
# Set valid next tokens
2863
followers = found_token.followers
2864
break
2865
else:
2866
# No currently valid tokens were found
2867
raise ValueError("Invalid RFC 3339 duration: {!r}"
2868
.format(duration))
2869
# End token found
2870
return value
2871
2872
2873
1583
def string_to_delta(interval):
2874
1584
"""Parse a string and return a datetime.timedelta
2875
2876
>>> string_to_delta('7d') == datetime.timedelta(7)
2877
True
2878
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2879
True
2880
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2881
True
2882
>>> string_to_delta('24h') == datetime.timedelta(1)
2883
True
2884
>>> string_to_delta('1w') == datetime.timedelta(7)
2885
True
2886
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2887
True
1585
1586
>>> string_to_delta('7d')
1587
datetime.timedelta(7)
1588
>>> string_to_delta('60s')
1589
datetime.timedelta(0, 60)
1590
>>> string_to_delta('60m')
1591
datetime.timedelta(0, 3600)
1592
>>> string_to_delta('24h')
1593
datetime.timedelta(1)
1594
>>> string_to_delta('1w')
1595
datetime.timedelta(7)
1596
>>> string_to_delta('5m 30s')
1597
datetime.timedelta(0, 330)
2888
1598
"""
2889
2890
try:
2891
return rfc3339_duration_to_delta(interval)
2892
except ValueError:
2893
pass
2894
2895
1599
timevalue = datetime.timedelta(0)
2896
1600
for s in interval.split():
2897
1601
try:
2898
suffix = s[-1]
1602
suffix = unicode(s[-1])
2899
1603
value = int(s[:-1])
2900
1604
if suffix == "d":
2901
1605
delta = datetime.timedelta(value)
2908
1612
elif suffix == "w":
2909
1613
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2910
1614
else:
2911
raise ValueError("Unknown suffix {!r}".format(suffix))
2912
except IndexError as e:
1615
raise ValueError("Unknown suffix %r" % suffix)
1616
except (ValueError, IndexError), e:
2913
1617
raise ValueError(*(e.args))
2914
1618
timevalue += delta
2915
1619
return timevalue
2916
1620
2917
1621
2918
def daemon(nochdir=False, noclose=False):
1622
def if_nametoindex(interface):
1623
"""Call the C function if_nametoindex(), or equivalent
1624
1625
Note: This function cannot accept a unicode string."""
1626
global if_nametoindex
1627
try:
1628
if_nametoindex = (ctypes.cdll.LoadLibrary
1629
(ctypes.util.find_library("c"))
1630
.if_nametoindex)
1631
except (OSError, AttributeError):
1632
logger.warning("Doing if_nametoindex the hard way")
1633
def if_nametoindex(interface):
1634
"Get an interface index the hard way, i.e. using fcntl()"
1635
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1636
with contextlib.closing(socket.socket()) as s:
1637
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1638
struct.pack(str("16s16x"),
1639
interface))
1640
interface_index = struct.unpack(str("I"),
1641
ifreq[16:20])[0]
1642
return interface_index
1643
return if_nametoindex(interface)
1644
1645
1646
def daemon(nochdir = False, noclose = False):
2919
1647
"""See daemon(3). Standard BSD Unix function.
2920
1648
2921
1649
This should really exist as os.daemon, but it doesn't (yet)."""
2922
1650
if os.fork():
2923
1651
sys.exit()
2928
1656
sys.exit()
2929
1657
if not noclose:
2930
1658
# Close all standard open file descriptors
2931
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1659
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2932
1660
if not stat.S_ISCHR(os.fstat(null).st_mode):
2933
1661
raise OSError(errno.ENODEV,
2934
"{} not a character device"
2935
.format(os.devnull))
1662
"%s not a character device"
1663
% os.path.devnull)
2936
1664
os.dup2(null, sys.stdin.fileno())
2937
1665
os.dup2(null, sys.stdout.fileno())
2938
1666
os.dup2(null, sys.stderr.fileno())
2941
1669
2942
1670
2943
1671
def main():
2944
1672
2945
1673
##################################################################
2946
1674
# Parsing of options, both command line and config file
2947
1675
2948
1676
parser = argparse.ArgumentParser()
2949
1677
parser.add_argument("-v", "--version", action="version",
2950
version="%(prog)s {}".format(version),
1678
version = "%%(prog)s %s" % version,
2951
1679
help="show version number and exit")
2952
1680
parser.add_argument("-i", "--interface", metavar="IF",
2953
1681
help="Bind to interface IF")
2959
1687
help="Run self-test")
2960
1688
parser.add_argument("--debug", action="store_true",
2961
1689
help="Debug mode; run in foreground and log"
2962
" to terminal", default=None)
1690
" to terminal")
2963
1691
parser.add_argument("--debuglevel", metavar="LEVEL",
2964
1692
help="Debug level for stdout output")
2965
1693
parser.add_argument("--priority", help="GnuTLS"
2972
1700
" files")
2973
1701
parser.add_argument("--no-dbus", action="store_false",
2974
1702
dest="use_dbus", help="Do not provide D-Bus"
2975
" system bus interface", default=None)
1703
" system bus interface")
2976
1704
parser.add_argument("--no-ipv6", action="store_false",
2977
dest="use_ipv6", help="Do not use IPv6",
2978
default=None)
2979
parser.add_argument("--no-restore", action="store_false",
2980
dest="restore", help="Do not restore stored"
2981
" state", default=None)
2982
parser.add_argument("--socket", type=int,
2983
help="Specify a file descriptor to a network"
2984
" socket to use instead of creating one")
2985
parser.add_argument("--statedir", metavar="DIR",
2986
help="Directory to save/restore state in")
2987
parser.add_argument("--foreground", action="store_true",
2988
help="Run in foreground", default=None)
2989
parser.add_argument("--no-zeroconf", action="store_false",
2990
dest="zeroconf", help="Do not use Zeroconf",
2991
default=None)
2992
1705
dest="use_ipv6", help="Do not use IPv6")
2993
1706
options = parser.parse_args()
2994
1707
1708
if options.check:
1709
import doctest
1710
doctest.testmod()
1711
sys.exit()
1712
2995
1713
# Default values for config file for server-global settings
2996
if gnutls.has_rawpk:
2997
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2998
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2999
else:
3000
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3001
":+SIGN-DSA-SHA256")
3002
server_defaults = {"interface": "",
3003
"address": "",
3004
"port": "",
3005
"debug": "False",
3006
"priority": priority,
3007
"servicename": "Mandos",
3008
"use_dbus": "True",
3009
"use_ipv6": "True",
3010
"debuglevel": "",
3011
"restore": "True",
3012
"socket": "",
3013
"statedir": "/var/lib/mandos",
3014
"foreground": "False",
3015
"zeroconf": "True",
3016
}
3017
del priority
3018
1714
server_defaults = { "interface": "",
1715
"address": "",
1716
"port": "",
1717
"debug": "False",
1718
"priority":
1719
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1720
"servicename": "Mandos",
1721
"use_dbus": "True",
1722
"use_ipv6": "True",
1723
"debuglevel": "",
1724
}
1725
3019
1726
# Parse config file for server-global settings
3020
server_config = configparser.ConfigParser(server_defaults)
1727
server_config = configparser.SafeConfigParser(server_defaults)
3021
1728
del server_defaults
3022
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3023
# Convert the ConfigParser object to a dict
1729
server_config.read(os.path.join(options.configdir,
1730
"mandos.conf"))
1731
# Convert the SafeConfigParser object to a dict
3024
1732
server_settings = server_config.defaults()
3025
1733
# Use the appropriate methods on the non-string config options
3026
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3027
"foreground", "zeroconf"):
1734
for option in ("debug", "use_dbus", "use_ipv6"):
3028
1735
server_settings[option] = server_config.getboolean("DEFAULT",
3029
1736
option)
3030
1737
if server_settings["port"]:
3031
1738
server_settings["port"] = server_config.getint("DEFAULT",
3032
1739
"port")
3033
if server_settings["socket"]:
3034
server_settings["socket"] = server_config.getint("DEFAULT",
3035
"socket")
3036
# Later, stdin will, and stdout and stderr might, be dup'ed
3037
# over with an opened os.devnull. But we don't want this to
3038
# happen with a supplied network socket.
3039
if 0 <= server_settings["socket"] <= 2:
3040
server_settings["socket"] = os.dup(server_settings
3041
["socket"])
3042
1740
del server_config
3043
1741
3044
1742
# Override the settings from the config file with command line
3045
1743
# options, if set.
3046
1744
for option in ("interface", "address", "port", "debug",
3047
"priority", "servicename", "configdir", "use_dbus",
3048
"use_ipv6", "debuglevel", "restore", "statedir",
3049
"socket", "foreground", "zeroconf"):
1745
"priority", "servicename", "configdir",
1746
"use_dbus", "use_ipv6", "debuglevel"):
3050
1747
value = getattr(options, option)
3051
1748
if value is not None:
3052
1749
server_settings[option] = value
3053
1750
del options
3054
1751
# Force all strings to be unicode
3055
1752
for option in server_settings.keys():
3056
if isinstance(server_settings[option], bytes):
3057
server_settings[option] = (server_settings[option]
3058
.decode("utf-8"))
3059
# Force all boolean options to be boolean
3060
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3061
"foreground", "zeroconf"):
3062
server_settings[option] = bool(server_settings[option])
3063
# Debug implies foreground
3064
if server_settings["debug"]:
3065
server_settings["foreground"] = True
1753
if type(server_settings[option]) is str:
1754
server_settings[option] = unicode(server_settings[option])
3066
1755
# Now we have our good server settings in "server_settings"
3067
1756
3068
1757
##################################################################
3069
3070
if (not server_settings["zeroconf"]
3071
and not (server_settings["port"]
3072
or server_settings["socket"] != "")):
3073
parser.error("Needs port or socket to work without Zeroconf")
3074
1758
3075
1759
# For convenience
3076
1760
debug = server_settings["debug"]
3077
1761
debuglevel = server_settings["debuglevel"]
3078
1762
use_dbus = server_settings["use_dbus"]
3079
1763
use_ipv6 = server_settings["use_ipv6"]
3080
stored_state_path = os.path.join(server_settings["statedir"],
3081
stored_state_file)
3082
foreground = server_settings["foreground"]
3083
zeroconf = server_settings["zeroconf"]
3084
3085
if debug:
3086
initlogger(debug, logging.DEBUG)
3087
else:
3088
if not debuglevel:
3089
initlogger(debug)
3090
else:
3091
level = getattr(logging, debuglevel.upper())
3092
initlogger(debug, level)
3093
1764
3094
1765
if server_settings["servicename"] != "Mandos":
3095
syslogger.setFormatter(
3096
logging.Formatter('Mandos ({}) [%(process)d]:'
3097
' %(levelname)s: %(message)s'.format(
3098
server_settings["servicename"])))
3099
1766
syslogger.setFormatter(logging.Formatter
1767
('Mandos (%s) [%%(process)d]:'
1768
' %%(levelname)s: %%(message)s'
1769
% server_settings["servicename"]))
1770
3100
1771
# Parse config file with clients
3101
client_config = configparser.ConfigParser(Client.client_defaults)
1772
client_defaults = { "timeout": "1h",
1773
"interval": "5m",
1774
"checker": "fping -q -- %%(host)s",
1775
"host": "",
1776
"approval_delay": "0s",
1777
"approval_duration": "1s",
1778
}
1779
client_config = configparser.SafeConfigParser(client_defaults)
3102
1780
client_config.read(os.path.join(server_settings["configdir"],
3103
1781
"clients.conf"))
3104
1782
3105
1783
global mandos_dbus_service
3106
1784
mandos_dbus_service = None
3107
3108
socketfd = None
3109
if server_settings["socket"] != "":
3110
socketfd = server_settings["socket"]
3111
tcp_server = MandosServer(
3112
(server_settings["address"], server_settings["port"]),
3113
ClientHandler,
3114
interface=(server_settings["interface"] or None),
3115
use_ipv6=use_ipv6,
3116
gnutls_priority=server_settings["priority"],
3117
use_dbus=use_dbus,
3118
socketfd=socketfd)
3119
if not foreground:
3120
pidfilename = "/run/mandos.pid"
3121
if not os.path.isdir("/run/."):
3122
pidfilename = "/var/run/mandos.pid"
3123
pidfile = None
3124
try:
3125
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3126
except IOError as e:
3127
logger.error("Could not open file %r", pidfilename,
3128
exc_info=e)
3129
3130
for name, group in (("_mandos", "_mandos"),
3131
("mandos", "mandos"),
3132
("nobody", "nogroup")):
3133
try:
3134
uid = pwd.getpwnam(name).pw_uid
3135
gid = pwd.getpwnam(group).pw_gid
3136
break
1785
1786
tcp_server = MandosServer((server_settings["address"],
1787
server_settings["port"]),
1788
ClientHandler,
1789
interface=(server_settings["interface"]
1790
or None),
1791
use_ipv6=use_ipv6,
1792
gnutls_priority=
1793
server_settings["priority"],
1794
use_dbus=use_dbus)
1795
if not debug:
1796
pidfilename = "/var/run/mandos.pid"
1797
try:
1798
pidfile = open(pidfilename, "w")
1799
except IOError:
1800
logger.error("Could not open file %r", pidfilename)
1801
1802
try:
1803
uid = pwd.getpwnam("_mandos").pw_uid
1804
gid = pwd.getpwnam("_mandos").pw_gid
1805
except KeyError:
1806
try:
1807
uid = pwd.getpwnam("mandos").pw_uid
1808
gid = pwd.getpwnam("mandos").pw_gid
3137
1809
except KeyError:
3138
continue
3139
else:
3140
uid = 65534
3141
gid = 65534
1810
try:
1811
uid = pwd.getpwnam("nobody").pw_uid
1812
gid = pwd.getpwnam("nobody").pw_gid
1813
except KeyError:
1814
uid = 65534
1815
gid = 65534
3142
1816
try:
3143
1817
os.setgid(gid)
3144
1818
os.setuid(uid)
3145
if debug:
3146
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3147
gid))
3148
except OSError as error:
3149
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3150
.format(uid, gid, os.strerror(error.errno)))
3151
if error.errno != errno.EPERM:
3152
raise
1819
except OSError, error:
1820
if error[0] != errno.EPERM:
1821
raise error
1822
1823
if not debug and not debuglevel:
1824
syslogger.setLevel(logging.WARNING)
1825
console.setLevel(logging.WARNING)
1826
if debuglevel:
1827
level = getattr(logging, debuglevel.upper())
1828
syslogger.setLevel(level)
1829
console.setLevel(level)
3153
1830
3154
1831
if debug:
3155
1832
# Enable all possible GnuTLS debugging
3156
1833
3157
1834
# "Use a log level over 10 to enable all debugging options."
3158
1835
# - GnuTLS manual
3159
gnutls.global_set_log_level(11)
3160
3161
@gnutls.log_func
1836
gnutls.library.functions.gnutls_global_set_log_level(11)
1837
1838
@gnutls.library.types.gnutls_log_func
3162
1839
def debug_gnutls(level, string):
3163
1840
logger.debug("GnuTLS: %s", string[:-1])
3164
3165
gnutls.global_set_log_function(debug_gnutls)
3166
1841
1842
(gnutls.library.functions
1843
.gnutls_global_set_log_function(debug_gnutls))
1844
3167
1845
# Redirect stdin so all checkers get /dev/null
3168
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1846
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3169
1847
os.dup2(null, sys.stdin.fileno())
3170
1848
if null > 2:
3171
1849
os.close(null)
3172
1850
else:
1851
# No console logging
1852
logger.removeHandler(console)
1853
3173
1854
# Need to fork before connecting to D-Bus
3174
if not foreground:
1855
if not debug:
3175
1856
# Close all input and output, do double fork, etc.
3176
1857
daemon()
3177
3178
if gi.version_info < (3, 10, 2):
3179
# multiprocessing will use threads, so before we use GLib we
3180
# need to inform GLib that threads will be used.
3181
GLib.threads_init()
3182
1858
3183
1859
global main_loop
3184
1860
# From the Avahi example code
3185
DBusGMainLoop(set_as_default=True)
3186
main_loop = GLib.MainLoop()
1861
DBusGMainLoop(set_as_default=True )
1862
main_loop = gobject.MainLoop()
3187
1863
bus = dbus.SystemBus()
3188
1864
# End of Avahi example code
3189
1865
if use_dbus:
3190
1866
try:
3191
bus_name = dbus.service.BusName("se.recompile.Mandos",
3192
bus,
3193
do_not_queue=True)
3194
old_bus_name = dbus.service.BusName(
3195
"se.bsnet.fukt.Mandos", bus,
3196
do_not_queue=True)
3197
except dbus.exceptions.DBusException as e:
3198
logger.error("Disabling D-Bus:", exc_info=e)
1867
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1868
bus, do_not_queue=True)
1869
except dbus.exceptions.NameExistsException, e:
1870
logger.error(unicode(e) + ", disabling D-Bus")
3199
1871
use_dbus = False
3200
1872
server_settings["use_dbus"] = False
3201
1873
tcp_server.use_dbus = False
3202
if zeroconf:
3203
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3204
service = AvahiServiceToSyslog(
3205
name=server_settings["servicename"],
3206
servicetype="_mandos._tcp",
3207
protocol=protocol,
3208
bus=bus)
3209
if server_settings["interface"]:
3210
service.interface = if_nametoindex(
3211
server_settings["interface"].encode("utf-8"))
3212
1874
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1875
service = AvahiService(name = server_settings["servicename"],
1876
servicetype = "_mandos._tcp",
1877
protocol = protocol, bus = bus)
1878
if server_settings["interface"]:
1879
service.interface = (if_nametoindex
1880
(str(server_settings["interface"])))
1881
3213
1882
global multiprocessing_manager
3214
1883
multiprocessing_manager = multiprocessing.Manager()
3215
1884
3216
1885
client_class = Client
3217
1886
if use_dbus:
3218
client_class = functools.partial(ClientDBus, bus=bus)
3219
3220
client_settings = Client.config_parser(client_config)
3221
old_client_settings = {}
3222
clients_data = {}
3223
3224
# This is used to redirect stdout and stderr for checker processes
3225
global wnull
3226
wnull = open(os.devnull, "w") # A writable /dev/null
3227
# Only used if server is running in foreground but not in debug
3228
# mode
3229
if debug or not foreground:
3230
wnull.close()
3231
3232
# Get client data and settings from last running state.
3233
if server_settings["restore"]:
3234
try:
3235
with open(stored_state_path, "rb") as stored_state:
3236
if sys.version_info.major == 2:
3237
clients_data, old_client_settings = pickle.load(
3238
stored_state)
3239
else:
3240
bytes_clients_data, bytes_old_client_settings = (
3241
pickle.load(stored_state, encoding="bytes"))
3242
# Fix bytes to strings
3243
# clients_data
3244
# .keys()
3245
clients_data = {(key.decode("utf-8")
3246
if isinstance(key, bytes)
3247
else key): value
3248
for key, value in
3249
bytes_clients_data.items()}
3250
del bytes_clients_data
3251
for key in clients_data:
3252
value = {(k.decode("utf-8")
3253
if isinstance(k, bytes) else k): v
3254
for k, v in
3255
clients_data[key].items()}
3256
clients_data[key] = value
3257
# .client_structure
3258
value["client_structure"] = [
3259
(s.decode("utf-8")
3260
if isinstance(s, bytes)
3261
else s) for s in
3262
value["client_structure"]]
3263
# .name, .host, and .checker_command
3264
for k in ("name", "host", "checker_command"):
3265
if isinstance(value[k], bytes):
3266
value[k] = value[k].decode("utf-8")
3267
if "key_id" not in value:
3268
value["key_id"] = ""
3269
elif "fingerprint" not in value:
3270
value["fingerprint"] = ""
3271
# old_client_settings
3272
# .keys()
3273
old_client_settings = {
3274
(key.decode("utf-8")
3275
if isinstance(key, bytes)
3276
else key): value
3277
for key, value in
3278
bytes_old_client_settings.items()}
3279
del bytes_old_client_settings
3280
# .host and .checker_command
3281
for value in old_client_settings.values():
3282
for attribute in ("host", "checker_command"):
3283
if isinstance(value[attribute], bytes):
3284
value[attribute] = (value[attribute]
3285
.decode("utf-8"))
3286
os.remove(stored_state_path)
3287
except IOError as e:
3288
if e.errno == errno.ENOENT:
3289
logger.warning("Could not load persistent state:"
3290
" {}".format(os.strerror(e.errno)))
3291
else:
3292
logger.critical("Could not load persistent state:",
3293
exc_info=e)
3294
raise
3295
except EOFError as e:
3296
logger.warning("Could not load persistent state: "
3297
"EOFError:",
3298
exc_info=e)
3299
3300
with PGPEngine() as pgp:
3301
for client_name, client in clients_data.items():
3302
# Skip removed clients
3303
if client_name not in client_settings:
3304
continue
3305
3306
# Decide which value to use after restoring saved state.
3307
# We have three different values: Old config file,
3308
# new config file, and saved state.
3309
# New config value takes precedence if it differs from old
3310
# config value, otherwise use saved state.
3311
for name, value in client_settings[client_name].items():
3312
try:
3313
# For each value in new config, check if it
3314
# differs from the old config value (Except for
3315
# the "secret" attribute)
3316
if (name != "secret"
3317
and (value !=
3318
old_client_settings[client_name][name])):
3319
client[name] = value
3320
except KeyError:
3321
pass
3322
3323
# Clients who has passed its expire date can still be
3324
# enabled if its last checker was successful. A Client
3325
# whose checker succeeded before we stored its state is
3326
# assumed to have successfully run all checkers during
3327
# downtime.
3328
if client["enabled"]:
3329
if datetime.datetime.utcnow() >= client["expires"]:
3330
if not client["last_checked_ok"]:
3331
logger.warning(
3332
"disabling client {} - Client never "
3333
"performed a successful checker".format(
3334
client_name))
3335
client["enabled"] = False
3336
elif client["last_checker_status"] != 0:
3337
logger.warning(
3338
"disabling client {} - Client last"
3339
" checker failed with error code"
3340
" {}".format(
3341
client_name,
3342
client["last_checker_status"]))
3343
client["enabled"] = False
3344
else:
3345
client["expires"] = (
3346
datetime.datetime.utcnow()
3347
+ client["timeout"])
3348
logger.debug("Last checker succeeded,"
3349
" keeping {} enabled".format(
3350
client_name))
1887
client_class = functools.partial(ClientDBus, bus = bus)
1888
def client_config_items(config, section):
1889
special_settings = {
1890
"approved_by_default":
1891
lambda: config.getboolean(section,
1892
"approved_by_default"),
1893
}
1894
for name, value in config.items(section):
3351
1895
try:
3352
client["secret"] = pgp.decrypt(
3353
client["encrypted_secret"],
3354
client_settings[client_name]["secret"])
3355
except PGPError:
3356
# If decryption fails, we use secret from new settings
3357
logger.debug("Failed to decrypt {} old secret".format(
3358
client_name))
3359
client["secret"] = (client_settings[client_name]
3360
["secret"])
3361
3362
# Add/remove clients based on new changes made to config
3363
for client_name in (set(old_client_settings)
3364
- set(client_settings)):
3365
del clients_data[client_name]
3366
for client_name in (set(client_settings)
3367
- set(old_client_settings)):
3368
clients_data[client_name] = client_settings[client_name]
3369
3370
# Create all client objects
3371
for client_name, client in clients_data.items():
3372
tcp_server.clients[client_name] = client_class(
3373
name=client_name,
3374
settings=client,
3375
server_settings=server_settings)
3376
1896
yield (name, special_settings[name]())
1897
except KeyError:
1898
yield (name, value)
1899
1900
tcp_server.clients.update(set(
1901
client_class(name = section,
1902
config= dict(client_config_items(
1903
client_config, section)))
1904
for section in client_config.sections()))
3377
1905
if not tcp_server.clients:
3378
1906
logger.warning("No clients defined")
3379
3380
if not foreground:
3381
if pidfile is not None:
3382
pid = os.getpid()
3383
try:
3384
with pidfile:
3385
print(pid, file=pidfile)
3386
except IOError:
3387
logger.error("Could not write to file %r with PID %d",
3388
pidfilename, pid)
3389
del pidfile
1907
1908
if not debug:
1909
try:
1910
with pidfile:
1911
pid = os.getpid()
1912
pidfile.write(str(pid) + "\n".encode("utf-8"))
1913
del pidfile
1914
except IOError:
1915
logger.error("Could not write to file %r with PID %d",
1916
pidfilename, pid)
1917
except NameError:
1918
# "pidfile" was never created
1919
pass
3390
1920
del pidfilename
3391
3392
for termsig in (signal.SIGHUP, signal.SIGTERM):
3393
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3394
lambda: main_loop.quit() and False)
3395
1921
1922
signal.signal(signal.SIGINT, signal.SIG_IGN)
1923
1924
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1925
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1926
3396
1927
if use_dbus:
3397
3398
@alternate_dbus_interfaces(
3399
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3400
class MandosDBusService(DBusObjectWithObjectManager):
1928
class MandosDBusService(dbus.service.Object):
3401
1929
"""A D-Bus proxy object"""
3402
3403
1930
def __init__(self):
3404
1931
dbus.service.Object.__init__(self, bus, "/")
3405
3406
_interface = "se.recompile.Mandos"
3407
1932
_interface = "se.bsnet.fukt.Mandos"
1933
3408
1934
@dbus.service.signal(_interface, signature="o")
3409
1935
def ClientAdded(self, objpath):
3410
1936
"D-Bus signal"
3411
1937
pass
3412
1938
3413
1939
@dbus.service.signal(_interface, signature="ss")
3414
def ClientNotFound(self, key_id, address):
1940
def ClientNotFound(self, fingerprint, address):
3415
1941
"D-Bus signal"
3416
1942
pass
3417
3418
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3419
"true"})
1943
3420
1944
@dbus.service.signal(_interface, signature="os")
3421
1945
def ClientRemoved(self, objpath, name):
3422
1946
"D-Bus signal"
3423
1947
pass
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
1948
3427
1949
@dbus.service.method(_interface, out_signature="ao")
3428
1950
def GetAllClients(self):
3429
1951
"D-Bus method"
3430
return dbus.Array(c.dbus_object_path for c in
3431
tcp_server.clients.values())
3432
3433
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3434
"true"})
1952
return dbus.Array(c.dbus_object_path
1953
for c in tcp_server.clients)
1954
3435
1955
@dbus.service.method(_interface,
3436
1956
out_signature="a{oa{sv}}")
3437
1957
def GetAllClientsWithProperties(self):
3438
1958
"D-Bus method"
3439
1959
return dbus.Dictionary(
3440
{c.dbus_object_path: c.GetAll(
3441
"se.recompile.Mandos.Client")
3442
for c in tcp_server.clients.values()},
1960
((c.dbus_object_path, c.GetAll(""))
1961
for c in tcp_server.clients),
3443
1962
signature="oa{sv}")
3444
1963
3445
1964
@dbus.service.method(_interface, in_signature="o")
3446
1965
def RemoveClient(self, object_path):
3447
1966
"D-Bus method"
3448
for c in tcp_server.clients.values():
1967
for c in tcp_server.clients:
3449
1968
if c.dbus_object_path == object_path:
3450
del tcp_server.clients[c.name]
1969
tcp_server.clients.remove(c)
3451
1970
c.remove_from_connection()
3452
# Don't signal the disabling
1971
# Don't signal anything except ClientRemoved
3453
1972
c.disable(quiet=True)
3454
# Emit D-Bus signal for removal
3455
self.client_removed_signal(c)
1973
# Emit D-Bus signal
1974
self.ClientRemoved(object_path, c.name)
3456
1975
return
3457
1976
raise KeyError(object_path)
3458
1977
3459
1978
del _interface
3460
3461
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3462
out_signature="a{oa{sa{sv}}}")
3463
def GetManagedObjects(self):
3464
"""D-Bus method"""
3465
return dbus.Dictionary(
3466
{client.dbus_object_path:
3467
dbus.Dictionary(
3468
{interface: client.GetAll(interface)
3469
for interface in
3470
client._get_all_interface_names()})
3471
for client in tcp_server.clients.values()})
3472
3473
def client_added_signal(self, client):
3474
"""Send the new standard signal and the old signal"""
3475
if use_dbus:
3476
# New standard signal
3477
self.InterfacesAdded(
3478
client.dbus_object_path,
3479
dbus.Dictionary(
3480
{interface: client.GetAll(interface)
3481
for interface in
3482
client._get_all_interface_names()}))
3483
# Old signal
3484
self.ClientAdded(client.dbus_object_path)
3485
3486
def client_removed_signal(self, client):
3487
"""Send the new standard signal and the old signal"""
3488
if use_dbus:
3489
# New standard signal
3490
self.InterfacesRemoved(
3491
client.dbus_object_path,
3492
client._get_all_interface_names())
3493
# Old signal
3494
self.ClientRemoved(client.dbus_object_path,
3495
client.name)
3496
1979
3497
1980
mandos_dbus_service = MandosDBusService()
3498
3499
# Save modules to variables to exempt the modules from being
3500
# unloaded before the function registered with atexit() is run.
3501
mp = multiprocessing
3502
wn = wnull
3503
1981
3504
1982
def cleanup():
3505
1983
"Cleanup function; run on exit"
3506
if zeroconf:
3507
service.cleanup()
3508
3509
mp.active_children()
3510
wn.close()
3511
if not (tcp_server.clients or client_settings):
3512
return
3513
3514
# Store client before exiting. Secrets are encrypted with key
3515
# based on what config file has. If config file is
3516
# removed/edited, old secret will thus be unrecovable.
3517
clients = {}
3518
with PGPEngine() as pgp:
3519
for client in tcp_server.clients.values():
3520
key = client_settings[client.name]["secret"]
3521
client.encrypted_secret = pgp.encrypt(client.secret,
3522
key)
3523
client_dict = {}
3524
3525
# A list of attributes that can not be pickled
3526
# + secret.
3527
exclude = {"bus", "changedstate", "secret",
3528
"checker", "server_settings"}
3529
for name, typ in inspect.getmembers(dbus.service
3530
.Object):
3531
exclude.add(name)
3532
3533
client_dict["encrypted_secret"] = (client
3534
.encrypted_secret)
3535
for attr in client.client_structure:
3536
if attr not in exclude:
3537
client_dict[attr] = getattr(client, attr)
3538
3539
clients[client.name] = client_dict
3540
del client_settings[client.name]["secret"]
3541
3542
try:
3543
with tempfile.NamedTemporaryFile(
3544
mode='wb',
3545
suffix=".pickle",
3546
prefix='clients-',
3547
dir=os.path.dirname(stored_state_path),
3548
delete=False) as stored_state:
3549
pickle.dump((clients, client_settings), stored_state,
3550
protocol=2)
3551
tempname = stored_state.name
3552
os.rename(tempname, stored_state_path)
3553
except (IOError, OSError) as e:
3554
if not debug:
3555
try:
3556
os.remove(tempname)
3557
except NameError:
3558
pass
3559
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3560
logger.warning("Could not save persistent state: {}"
3561
.format(os.strerror(e.errno)))
3562
else:
3563
logger.warning("Could not save persistent state:",
3564
exc_info=e)
3565
raise
3566
3567
# Delete all clients, and settings from config
1984
service.cleanup()
1985
3568
1986
while tcp_server.clients:
3569
name, client = tcp_server.clients.popitem()
1987
client = tcp_server.clients.pop()
3570
1988
if use_dbus:
3571
1989
client.remove_from_connection()
3572
# Don't signal the disabling
1990
client.disable_hook = None
1991
# Don't signal anything except ClientRemoved
3573
1992
client.disable(quiet=True)
3574
# Emit D-Bus signal for removal
3575
1993
if use_dbus:
3576
mandos_dbus_service.client_removed_signal(client)
3577
client_settings.clear()
3578
1994
# Emit D-Bus signal
1995
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1996
client.name)
1997
3579
1998
atexit.register(cleanup)
3580
3581
for client in tcp_server.clients.values():
1999
2000
for client in tcp_server.clients:
3582
2001
if use_dbus:
3583
# Emit D-Bus signal for adding
3584
mandos_dbus_service.client_added_signal(client)
3585
# Need to initiate checking of clients
3586
if client.enabled:
3587
client.init_checker()
3588
2002
# Emit D-Bus signal
2003
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2004
client.enable()
2005
3589
2006
tcp_server.enable()
3590
2007
tcp_server.server_activate()
3591
2008
3592
2009
# Find out what port we got
3593
if zeroconf:
3594
service.port = tcp_server.socket.getsockname()[1]
2010
service.port = tcp_server.socket.getsockname()[1]
3595
2011
if use_ipv6:
3596
2012
logger.info("Now listening on address %r, port %d,"
3597
" flowinfo %d, scope_id %d",
3598
*tcp_server.socket.getsockname())
2013
" flowinfo %d, scope_id %d"
2014
% tcp_server.socket.getsockname())
3599
2015
else: # IPv4
3600
logger.info("Now listening on address %r, port %d",
3601
*tcp_server.socket.getsockname())
3602
3603
# service.interface = tcp_server.socket.getsockname()[3]
3604
2016
logger.info("Now listening on address %r, port %d"
2017
% tcp_server.socket.getsockname())
2018
2019
#service.interface = tcp_server.socket.getsockname()[3]
2020
3605
2021
try:
3606
if zeroconf:
3607
# From the Avahi example code
3608
try:
3609
service.activate()
3610
except dbus.exceptions.DBusException as error:
3611
logger.critical("D-Bus Exception", exc_info=error)
3612
cleanup()
3613
sys.exit(1)
3614
# End of Avahi example code
3615
3616
GLib.io_add_watch(
3617
GLib.IOChannel.unix_new(tcp_server.fileno()),
3618
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3619
lambda *args, **kwargs: (tcp_server.handle_request
3620
(*args[2:], **kwargs) or True))
3621
2022
# From the Avahi example code
2023
try:
2024
service.activate()
2025
except dbus.exceptions.DBusException, error:
2026
logger.critical("DBusException: %s", error)
2027
cleanup()
2028
sys.exit(1)
2029
# End of Avahi example code
2030
2031
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2032
lambda *args, **kwargs:
2033
(tcp_server.handle_request
2034
(*args[2:], **kwargs) or True))
2035
3622
2036
logger.debug("Starting main loop")
3623
2037
main_loop.run()
3624
except AvahiError as error:
3625
logger.critical("Avahi Error", exc_info=error)
2038
except AvahiError, error:
2039
logger.critical("AvahiError: %s", error)
3626
2040
cleanup()
3627
2041
sys.exit(1)
3628
2042
except KeyboardInterrupt:
3633
2047
# Must run before the D-Bus bus name gets deregistered
3634
2048
cleanup()
3635
2049
3636
3637
def should_only_run_tests():
3638
parser = argparse.ArgumentParser(add_help=False)
3639
parser.add_argument("--check", action='store_true')
3640
args, unknown_args = parser.parse_known_args()
3641
run_tests = args.check
3642
if run_tests:
3643
# Remove --check argument from sys.argv
3644
sys.argv[1:] = unknown_args
3645
return run_tests
3646
3647
# Add all tests from doctest strings
3648
def load_tests(loader, tests, none):
3649
import doctest
3650
tests.addTests(doctest.DocTestSuite())
3651
return tests
3652
3653
2050
if __name__ == '__main__':
3654
try:
3655
if should_only_run_tests():
3656
# Call using ./mandos --check [--verbose]
3657
unittest.main()
3658
else:
3659
main()
3660
finally:
3661
logging.shutdown()
2051
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0