To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to mandos
- browse files at revision 24.1.186
- compare with another revision
- download diff
- download tarball
- view history from revision 24.1.186
- Committer: Björn Påhlsson
- Date: 2011-10-02 19:18:24 UTC
- mto: This revision was merged to the branch mainline in revision 505.
- Revision ID: belorn@fukt.bsnet.se-20111002191824-eweh4pvneeg3qzia
transitional stuff actually working
documented change to D-Bus API
documented change to D-Bus API
- files removed:
- debian/mandos-client.examples
- debian/upstream
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python2.7
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
30
#
31
# Contact the authors at <mandos@recompile.se>.
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
#
33
33
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
37
import SocketServer as socketserver
43
38
import socket
44
39
import argparse
45
40
import datetime
50
45
import gnutls.library.functions
51
46
import gnutls.library.constants
52
47
import gnutls.library.types
53
try:
54
import ConfigParser as configparser
55
except ImportError:
56
import configparser
48
import ConfigParser as configparser
57
49
import sys
58
50
import re
59
51
import os
68
60
import struct
69
61
import fcntl
70
62
import functools
71
try:
72
import cPickle as pickle
73
except ImportError:
74
import pickle
63
import cPickle as pickle
75
64
import multiprocessing
76
65
import types
77
import binascii
78
import tempfile
79
import itertools
80
import collections
81
import codecs
82
66
83
67
import dbus
84
68
import dbus.service
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
69
import gobject
89
70
import avahi
90
71
from dbus.mainloop.glib import DBusGMainLoop
91
72
import ctypes
101
82
except ImportError:
102
83
SO_BINDTODEVICE = None
103
84
104
if sys.version_info.major == 2:
105
str = unicode
106
107
version = "1.6.9"
108
stored_state_file = "clients.pickle"
109
110
logger = logging.getLogger()
111
syslogger = None
112
113
try:
114
if_nametoindex = ctypes.cdll.LoadLibrary(
115
ctypes.util.find_library("c")).if_nametoindex
116
except (OSError, AttributeError):
117
118
def if_nametoindex(interface):
119
"Get an interface index the hard way, i.e. using fcntl()"
120
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
121
with contextlib.closing(socket.socket()) as s:
122
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
123
struct.pack(b"16s16x", interface))
124
interface_index = struct.unpack("I", ifreq[16:20])[0]
125
return interface_index
126
127
128
def initlogger(debug, level=logging.WARNING):
129
"""init logger and add loglevel"""
130
131
global syslogger
132
syslogger = (logging.handlers.SysLogHandler(
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
135
syslogger.setFormatter(logging.Formatter
136
('Mandos [%(process)d]: %(levelname)s:'
137
' %(message)s'))
138
logger.addHandler(syslogger)
139
140
if debug:
141
console = logging.StreamHandler()
142
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
143
' [%(process)d]:'
144
' %(levelname)s:'
145
' %(message)s'))
146
logger.addHandler(console)
147
logger.setLevel(level)
148
149
150
class PGPError(Exception):
151
"""Exception if encryption/decryption fails"""
152
pass
153
154
155
class PGPEngine(object):
156
"""A simple class for OpenPGP symmetric encryption & decryption"""
157
158
def __init__(self):
159
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
160
self.gnupgargs = ['--batch',
161
'--home', self.tempdir,
162
'--force-mdc',
163
'--quiet',
164
'--no-use-agent']
165
166
def __enter__(self):
167
return self
168
169
def __exit__(self, exc_type, exc_value, traceback):
170
self._cleanup()
171
return False
172
173
def __del__(self):
174
self._cleanup()
175
176
def _cleanup(self):
177
if self.tempdir is not None:
178
# Delete contents of tempdir
179
for root, dirs, files in os.walk(self.tempdir,
180
topdown = False):
181
for filename in files:
182
os.remove(os.path.join(root, filename))
183
for dirname in dirs:
184
os.rmdir(os.path.join(root, dirname))
185
# Remove tempdir
186
os.rmdir(self.tempdir)
187
self.tempdir = None
188
189
def password_encode(self, password):
190
# Passphrase can not be empty and can not contain newlines or
191
# NUL bytes. So we prefix it and hex encode it.
192
encoded = b"mandos" + binascii.hexlify(password)
193
if len(encoded) > 2048:
194
# GnuPG can't handle long passwords, so encode differently
195
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
196
.replace(b"\n", b"\\n")
197
.replace(b"\0", b"\\x00"))
198
return encoded
199
200
def encrypt(self, data, password):
201
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
204
passfile.write(passphrase)
205
passfile.flush()
206
proc = subprocess.Popen(['gpg', '--symmetric',
207
'--passphrase-file',
208
passfile.name]
209
+ self.gnupgargs,
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
214
if proc.returncode != 0:
215
raise PGPError(err)
216
return ciphertext
217
218
def decrypt(self, data, password):
219
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
222
passfile.write(passphrase)
223
passfile.flush()
224
proc = subprocess.Popen(['gpg', '--decrypt',
225
'--passphrase-file',
226
passfile.name]
227
+ self.gnupgargs,
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
232
if proc.returncode != 0:
233
raise PGPError(err)
234
return decrypted_plaintext
235
85
86
version = "1.3.1"
87
88
#logger = logging.getLogger('mandos')
89
logger = logging.Logger('mandos')
90
syslogger = (logging.handlers.SysLogHandler
91
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
92
address = str("/dev/log")))
93
syslogger.setFormatter(logging.Formatter
94
('Mandos [%(process)d]: %(levelname)s:'
95
' %(message)s'))
96
logger.addHandler(syslogger)
97
98
console = logging.StreamHandler()
99
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
236
103
237
104
class AvahiError(Exception):
238
105
def __init__(self, value, *args, **kwargs):
239
106
self.value = value
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
243
110
244
111
class AvahiServiceError(AvahiError):
245
112
pass
246
113
247
248
114
class AvahiGroupError(AvahiError):
249
115
pass
250
116
257
123
Used to optionally bind to the specified interface.
258
124
name: string; Example: 'Mandos'
259
125
type: string; Example: '_mandos._tcp'.
260
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
261
127
port: integer; what port to announce
262
128
TXT: list of strings; TXT record for the service
263
129
domain: string; Domain to publish on, default to .local if empty.
269
135
server: D-Bus Server
270
136
bus: dbus.SystemBus()
271
137
"""
272
273
def __init__(self,
274
interface = avahi.IF_UNSPEC,
275
name = None,
276
servicetype = None,
277
port = None,
278
TXT = None,
279
domain = "",
280
host = "",
281
max_renames = 32768,
282
protocol = avahi.PROTO_UNSPEC,
283
bus = None):
138
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
139
servicetype = None, port = None, TXT = None,
140
domain = "", host = "", max_renames = 32768,
141
protocol = avahi.PROTO_UNSPEC, bus = None):
284
142
self.interface = interface
285
143
self.name = name
286
144
self.type = servicetype
295
153
self.server = None
296
154
self.bus = bus
297
155
self.entry_group_state_changed_match = None
298
299
def rename(self, remove=True):
156
def rename(self):
300
157
"""Derived from the Avahi example code"""
301
158
if self.rename_count >= self.max_renames:
302
159
logger.critical("No suitable Zeroconf service name found"
303
160
" after %i retries, exiting.",
304
161
self.rename_count)
305
162
raise AvahiServiceError("Too many renames")
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
308
self.rename_count += 1
163
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
309
164
logger.info("Changing Zeroconf service name to %r ...",
310
165
self.name)
311
if remove:
312
self.remove()
166
syslogger.setFormatter(logging.Formatter
167
('Mandos (%s) [%%(process)d]:'
168
' %%(levelname)s: %%(message)s'
169
% self.name))
170
self.remove()
313
171
try:
314
172
self.add()
315
173
except dbus.exceptions.DBusException as error:
316
if (error.get_dbus_name()
317
== "org.freedesktop.Avahi.CollisionError"):
318
logger.info("Local Zeroconf service name collision.")
319
return self.rename(remove=False)
320
else:
321
logger.critical("D-Bus Exception", exc_info=error)
322
self.cleanup()
323
os._exit(1)
324
174
logger.critical("DBusException: %s", error)
175
self.cleanup()
176
os._exit(1)
177
self.rename_count += 1
325
178
def remove(self):
326
179
"""Derived from the Avahi example code"""
327
180
if self.entry_group_state_changed_match is not None:
329
182
self.entry_group_state_changed_match = None
330
183
if self.group is not None:
331
184
self.group.Reset()
332
333
185
def add(self):
334
186
"""Derived from the Avahi example code"""
335
187
self.remove()
340
192
avahi.DBUS_INTERFACE_ENTRY_GROUP)
341
193
self.entry_group_state_changed_match = (
342
194
self.group.connect_to_signal(
343
'StateChanged', self.entry_group_state_changed))
195
'StateChanged', self .entry_group_state_changed))
344
196
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
345
197
self.name, self.type)
346
198
self.group.AddService(
352
204
dbus.UInt16(self.port),
353
205
avahi.string_array_to_txt_array(self.TXT))
354
206
self.group.Commit()
355
356
207
def entry_group_state_changed(self, state, error):
357
208
"""Derived from the Avahi example code"""
358
209
logger.debug("Avahi entry group state change: %i", state)
364
215
self.rename()
365
216
elif state == avahi.ENTRY_GROUP_FAILURE:
366
217
logger.critical("Avahi: Error in group state changed %s",
367
str(error))
368
raise AvahiGroupError("State changed: {!s}".format(error))
369
218
unicode(error))
219
raise AvahiGroupError("State changed: %s"
220
% unicode(error))
370
221
def cleanup(self):
371
222
"""Derived from the Avahi example code"""
372
223
if self.group is not None:
373
224
try:
374
225
self.group.Free()
375
226
except (dbus.exceptions.UnknownMethodException,
376
dbus.exceptions.DBusException):
227
dbus.exceptions.DBusException) as e:
377
228
pass
378
229
self.group = None
379
230
self.remove()
380
381
231
def server_state_changed(self, state, error=None):
382
232
"""Derived from the Avahi example code"""
383
233
logger.debug("Avahi server state change: %i", state)
384
bad_states = {
385
avahi.SERVER_INVALID: "Zeroconf server invalid",
386
avahi.SERVER_REGISTERING: None,
387
avahi.SERVER_COLLISION: "Zeroconf server name collision",
388
avahi.SERVER_FAILURE: "Zeroconf server failure",
389
}
234
bad_states = { avahi.SERVER_INVALID:
235
"Zeroconf server invalid",
236
avahi.SERVER_REGISTERING: None,
237
avahi.SERVER_COLLISION:
238
"Zeroconf server name collision",
239
avahi.SERVER_FAILURE:
240
"Zeroconf server failure" }
390
241
if state in bad_states:
391
242
if bad_states[state] is not None:
392
243
if error is None:
395
246
logger.error(bad_states[state] + ": %r", error)
396
247
self.cleanup()
397
248
elif state == avahi.SERVER_RUNNING:
398
try:
399
self.add()
400
except dbus.exceptions.DBusException as error:
401
if (error.get_dbus_name()
402
== "org.freedesktop.Avahi.CollisionError"):
403
logger.info("Local Zeroconf service name"
404
" collision.")
405
return self.rename(remove=False)
406
else:
407
logger.critical("D-Bus Exception", exc_info=error)
408
self.cleanup()
409
os._exit(1)
249
self.add()
410
250
else:
411
251
if error is None:
412
252
logger.debug("Unknown state: %r", state)
413
253
else:
414
254
logger.debug("Unknown state: %r: %r", state, error)
415
416
255
def activate(self):
417
256
"""Derived from the Avahi example code"""
418
257
if self.server is None:
422
261
follow_name_owner_changes=True),
423
262
avahi.DBUS_INTERFACE_SERVER)
424
263
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
264
self.server_state_changed)
426
265
self.server_state_changed(self.server.GetState())
427
266
428
267
429
class AvahiServiceToSyslog(AvahiService):
430
def rename(self, *args, **kwargs):
431
"""Add the new name to the syslog messages"""
432
ret = AvahiService.rename(self, *args, **kwargs)
433
syslogger.setFormatter(logging.Formatter(
434
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
435
.format(self.name)))
436
return ret
437
438
def call_pipe(connection, # : multiprocessing.Connection
439
func, *args, **kwargs):
440
"""This function is meant to be called by multiprocessing.Process
441
442
This function runs func(*args, **kwargs), and writes the resulting
443
return value on the provided multiprocessing.Connection.
444
"""
445
connection.send(func(*args, **kwargs))
446
connection.close()
447
268
def _timedelta_to_milliseconds(td):
269
"Convert a datetime.timedelta() to milliseconds"
270
return ((td.days * 24 * 60 * 60 * 1000)
271
+ (td.seconds * 1000)
272
+ (td.microseconds // 1000))
273
448
274
class Client(object):
449
275
"""A representation of a client host served by this server.
450
276
451
277
Attributes:
452
approved: bool(); 'None' if not yet approved/disapproved
278
_approved: bool(); 'None' if not yet approved/disapproved
453
279
approval_delay: datetime.timedelta(); Time to wait for approval
454
280
approval_duration: datetime.timedelta(); Duration of one approval
455
281
checker: subprocess.Popen(); a running checker process used
462
288
instance %(name)s can be used in the command.
463
289
checker_initiator_tag: a gobject event source tag, or None
464
290
created: datetime.datetime(); (UTC) object creation
465
client_structure: Object describing what attributes a client has
466
and is used for storing the client at exit
467
291
current_checker_command: string; current running checker_command
292
disable_hook: If set, called by disable() as disable_hook(self)
468
293
disable_initiator_tag: a gobject event source tag, or None
469
294
enabled: bool()
470
295
fingerprint: string (40 or 32 hexadecimal digits); used to
473
298
interval: datetime.timedelta(); How often to start a new checker
474
299
last_approval_request: datetime.datetime(); (UTC) or None
475
300
last_checked_ok: datetime.datetime(); (UTC) or None
476
last_checker_status: integer between 0 and 255 reflecting exit
477
status of last checker. -1 reflects crashed
478
checker, -2 means no checker completed yet.
479
last_checker_signal: The signal which killed the last checker, if
480
last_checker_status is -1
481
last_enabled: datetime.datetime(); (UTC) or None
301
last_enabled: datetime.datetime(); (UTC)
482
302
name: string; from the config file, used in log messages and
483
303
D-Bus identifiers
484
304
secret: bytestring; sent verbatim (over TLS) to client
485
305
timeout: datetime.timedelta(); How long from last_checked_ok
486
306
until this client is disabled
487
extended_timeout: extra long timeout when secret has been sent
307
extended_timeout: extra long timeout when password has been sent
488
308
runtime_expansions: Allowed attributes for runtime expansion.
489
309
expires: datetime.datetime(); time (UTC) when a client will be
490
310
disabled, or None
491
server_settings: The server_settings dict from main()
492
311
"""
493
312
494
313
runtime_expansions = ("approval_delay", "approval_duration",
495
"created", "enabled", "expires",
496
"fingerprint", "host", "interval",
497
"last_approval_request", "last_checked_ok",
314
"created", "enabled", "fingerprint",
315
"host", "interval", "last_checked_ok",
498
316
"last_enabled", "name", "timeout")
499
client_defaults = {
500
"timeout": "PT5M",
501
"extended_timeout": "PT15M",
502
"interval": "PT2M",
503
"checker": "fping -q -- %%(host)s",
504
"host": "",
505
"approval_delay": "PT0S",
506
"approval_duration": "PT1S",
507
"approved_by_default": "True",
508
"enabled": "True",
509
}
510
511
@staticmethod
512
def config_parser(config):
513
"""Construct a new dict of client settings of this form:
514
{ client_name: {setting_name: value, ...}, ...}
515
with exceptions for any special settings as defined above.
516
NOTE: Must be a pure function. Must return the same result
517
value given the same arguments.
518
"""
519
settings = {}
520
for client_name in config.sections():
521
section = dict(config.items(client_name))
522
client = settings[client_name] = {}
523
524
client["host"] = section["host"]
525
# Reformat values from string types to Python types
526
client["approved_by_default"] = config.getboolean(
527
client_name, "approved_by_default")
528
client["enabled"] = config.getboolean(client_name,
529
"enabled")
530
531
# Uppercase and remove spaces from fingerprint for later
532
# comparison purposes with return value from the
533
# fingerprint() function
534
client["fingerprint"] = (section["fingerprint"].upper()
535
.replace(" ", ""))
536
if "secret" in section:
537
client["secret"] = section["secret"].decode("base64")
538
elif "secfile" in section:
539
with open(os.path.expanduser(os.path.expandvars
540
(section["secfile"])),
541
"rb") as secfile:
542
client["secret"] = secfile.read()
543
else:
544
raise TypeError("No secret or secfile for section {}"
545
.format(section))
546
client["timeout"] = string_to_delta(section["timeout"])
547
client["extended_timeout"] = string_to_delta(
548
section["extended_timeout"])
549
client["interval"] = string_to_delta(section["interval"])
550
client["approval_delay"] = string_to_delta(
551
section["approval_delay"])
552
client["approval_duration"] = string_to_delta(
553
section["approval_duration"])
554
client["checker_command"] = section["checker"]
555
client["last_approval_request"] = None
556
client["last_checked_ok"] = None
557
client["last_checker_status"] = -2
558
559
return settings
560
561
def __init__(self, settings, name = None, server_settings=None):
317
318
def timeout_milliseconds(self):
319
"Return the 'timeout' attribute in milliseconds"
320
return _timedelta_to_milliseconds(self.timeout)
321
322
def extended_timeout_milliseconds(self):
323
"Return the 'extended_timeout' attribute in milliseconds"
324
return _timedelta_to_milliseconds(self.extended_timeout)
325
326
def interval_milliseconds(self):
327
"Return the 'interval' attribute in milliseconds"
328
return _timedelta_to_milliseconds(self.interval)
329
330
def approval_delay_milliseconds(self):
331
return _timedelta_to_milliseconds(self.approval_delay)
332
333
def __init__(self, name = None, disable_hook=None, config=None):
334
"""Note: the 'checker' key in 'config' sets the
335
'checker_command' attribute and *not* the 'checker'
336
attribute."""
562
337
self.name = name
563
if server_settings is None:
564
server_settings = {}
565
self.server_settings = server_settings
566
# adding all client settings
567
for setting, value in settings.items():
568
setattr(self, setting, value)
569
570
if self.enabled:
571
if not hasattr(self, "last_enabled"):
572
self.last_enabled = datetime.datetime.utcnow()
573
if not hasattr(self, "expires"):
574
self.expires = (datetime.datetime.utcnow()
575
+ self.timeout)
576
else:
577
self.last_enabled = None
578
self.expires = None
579
338
if config is None:
339
config = {}
580
340
logger.debug("Creating client %r", self.name)
341
# Uppercase and remove spaces from fingerprint for later
342
# comparison purposes with return value from the fingerprint()
343
# function
344
self.fingerprint = (config["fingerprint"].upper()
345
.replace(" ", ""))
581
346
logger.debug(" Fingerprint: %s", self.fingerprint)
582
self.created = settings.get("created",
583
datetime.datetime.utcnow())
584
585
# attributes specific for this server instance
347
if "secret" in config:
348
self.secret = config["secret"].decode("base64")
349
elif "secfile" in config:
350
with open(os.path.expanduser(os.path.expandvars
351
(config["secfile"])),
352
"rb") as secfile:
353
self.secret = secfile.read()
354
else:
355
raise TypeError("No secret or secfile for client %s"
356
% self.name)
357
self.host = config.get("host", "")
358
self.created = datetime.datetime.utcnow()
359
self.enabled = False
360
self.last_approval_request = None
361
self.last_enabled = None
362
self.last_checked_ok = None
363
self.timeout = string_to_delta(config["timeout"])
364
self.extended_timeout = string_to_delta(config["extended_timeout"])
365
self.interval = string_to_delta(config["interval"])
366
self.disable_hook = disable_hook
586
367
self.checker = None
587
368
self.checker_initiator_tag = None
588
369
self.disable_initiator_tag = None
370
self.expires = None
589
371
self.checker_callback_tag = None
372
self.checker_command = config["checker"]
590
373
self.current_checker_command = None
591
self.approved = None
374
self.last_connect = None
375
self._approved = None
376
self.approved_by_default = config.get("approved_by_default",
377
True)
592
378
self.approvals_pending = 0
593
self.changedstate = multiprocessing_manager.Condition(
594
multiprocessing_manager.Lock())
595
self.client_structure = [attr
596
for attr in self.__dict__.iterkeys()
597
if not attr.startswith("_")]
598
self.client_structure.append("client_structure")
599
600
for name, t in inspect.getmembers(
601
type(self), lambda obj: isinstance(obj, property)):
602
if not name.startswith("_"):
603
self.client_structure.append(name)
379
self.approval_delay = string_to_delta(
380
config["approval_delay"])
381
self.approval_duration = string_to_delta(
382
config["approval_duration"])
383
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
604
384
605
# Send notice to process children that client state has changed
606
385
def send_changedstate(self):
607
with self.changedstate:
608
self.changedstate.notify_all()
609
386
self.changedstate.acquire()
387
self.changedstate.notify_all()
388
self.changedstate.release()
389
610
390
def enable(self):
611
391
"""Start this client's checker and timeout hooks"""
612
392
if getattr(self, "enabled", False):
613
393
# Already enabled
614
394
return
395
self.send_changedstate()
396
# Schedule a new checker to be started an 'interval' from now,
397
# and every interval from then on.
398
self.checker_initiator_tag = (gobject.timeout_add
399
(self.interval_milliseconds(),
400
self.start_checker))
401
# Schedule a disable() when 'timeout' has passed
615
402
self.expires = datetime.datetime.utcnow() + self.timeout
403
self.disable_initiator_tag = (gobject.timeout_add
404
(self.timeout_milliseconds(),
405
self.disable))
616
406
self.enabled = True
617
407
self.last_enabled = datetime.datetime.utcnow()
618
self.init_checker()
619
self.send_changedstate()
408
# Also start a new checker *right now*.
409
self.start_checker()
620
410
621
411
def disable(self, quiet=True):
622
412
"""Disable this client."""
623
413
if not getattr(self, "enabled", False):
624
414
return False
625
415
if not quiet:
416
self.send_changedstate()
417
if not quiet:
626
418
logger.info("Disabling client %s", self.name)
627
if getattr(self, "disable_initiator_tag", None) is not None:
419
if getattr(self, "disable_initiator_tag", False):
628
420
gobject.source_remove(self.disable_initiator_tag)
629
421
self.disable_initiator_tag = None
630
422
self.expires = None
631
if getattr(self, "checker_initiator_tag", None) is not None:
423
if getattr(self, "checker_initiator_tag", False):
632
424
gobject.source_remove(self.checker_initiator_tag)
633
425
self.checker_initiator_tag = None
634
426
self.stop_checker()
427
if self.disable_hook:
428
self.disable_hook(self)
635
429
self.enabled = False
636
if not quiet:
637
self.send_changedstate()
638
430
# Do not run this again if called by a gobject.timeout_add
639
431
return False
640
432
641
433
def __del__(self):
434
self.disable_hook = None
642
435
self.disable()
643
436
644
def init_checker(self):
645
# Schedule a new checker to be started an 'interval' from now,
646
# and every interval from then on.
647
if self.checker_initiator_tag is not None:
648
gobject.source_remove(self.checker_initiator_tag)
649
self.checker_initiator_tag = gobject.timeout_add(
650
int(self.interval.total_seconds() * 1000),
651
self.start_checker)
652
# Schedule a disable() when 'timeout' has passed
653
if self.disable_initiator_tag is not None:
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = gobject.timeout_add(
656
int(self.timeout.total_seconds() * 1000), self.disable)
657
# Also start a new checker *right now*.
658
self.start_checker()
659
660
def checker_callback(self, source, condition, connection,
661
command):
437
def checker_callback(self, pid, condition, command):
662
438
"""The checker has completed, so take appropriate actions."""
663
439
self.checker_callback_tag = None
664
440
self.checker = None
665
# Read return code from connection (see call_pipe)
666
returncode = connection.recv()
667
connection.close()
668
669
if returncode >= 0:
670
self.last_checker_status = returncode
671
self.last_checker_signal = None
672
if self.last_checker_status == 0:
441
if os.WIFEXITED(condition):
442
exitstatus = os.WEXITSTATUS(condition)
443
if exitstatus == 0:
673
444
logger.info("Checker for %(name)s succeeded",
674
445
vars(self))
675
446
self.checked_ok()
676
447
else:
677
logger.info("Checker for %(name)s failed", vars(self))
448
logger.info("Checker for %(name)s failed",
449
vars(self))
678
450
else:
679
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
451
logger.warning("Checker for %(name)s crashed?",
682
452
vars(self))
683
return False
684
685
def checked_ok(self):
686
"""Assert that the client has been seen, alive and well."""
687
self.last_checked_ok = datetime.datetime.utcnow()
688
self.last_checker_status = 0
689
self.last_checker_signal = None
690
self.bump_timeout()
691
692
def bump_timeout(self, timeout=None):
693
"""Bump up the timeout for this client."""
453
454
def checked_ok(self, timeout=None):
455
"""Bump up the timeout for this client.
456
457
This should only be called when the client has been seen,
458
alive and well.
459
"""
694
460
if timeout is None:
695
461
timeout = self.timeout
696
if self.disable_initiator_tag is not None:
697
gobject.source_remove(self.disable_initiator_tag)
698
self.disable_initiator_tag = None
699
if getattr(self, "enabled", False):
700
self.disable_initiator_tag = gobject.timeout_add(
701
int(timeout.total_seconds() * 1000), self.disable)
702
self.expires = datetime.datetime.utcnow() + timeout
462
self.last_checked_ok = datetime.datetime.utcnow()
463
gobject.source_remove(self.disable_initiator_tag)
464
self.expires = datetime.datetime.utcnow() + timeout
465
self.disable_initiator_tag = (gobject.timeout_add
466
(_timedelta_to_milliseconds(timeout),
467
self.disable))
703
468
704
469
def need_approval(self):
705
470
self.last_approval_request = datetime.datetime.utcnow()
710
475
If a checker already exists, leave it running and do
711
476
nothing."""
712
477
# The reason for not killing a running checker is that if we
713
# did that, and if a checker (for some reason) started running
714
# slowly and taking more than 'interval' time, then the client
715
# would inevitably timeout, since no checker would get a
716
# chance to run to completion. If we instead leave running
478
# did that, then if a checker (for some reason) started
479
# running slowly and taking more than 'interval' time, the
480
# client would inevitably timeout, since no checker would get
481
# a chance to run to completion. If we instead leave running
717
482
# checkers alone, the checker would have to take more time
718
483
# than 'timeout' for the client to be disabled, which is as it
719
484
# should be.
720
485
721
if self.checker is not None and not self.checker.is_alive():
722
logger.warning("Checker was not alive; joining")
723
self.checker.join()
724
self.checker = None
486
# If a checker exists, make sure it is not a zombie
487
try:
488
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
489
except (AttributeError, OSError) as error:
490
if (isinstance(error, OSError)
491
and error.errno != errno.ECHILD):
492
raise error
493
else:
494
if pid:
495
logger.warning("Checker was a zombie")
496
gobject.source_remove(self.checker_callback_tag)
497
self.checker_callback(pid, status,
498
self.current_checker_command)
725
499
# Start a new checker if needed
726
500
if self.checker is None:
727
# Escape attributes for the shell
728
escaped_attrs = {
729
attr: re.escape(str(getattr(self, attr)))
730
for attr in self.runtime_expansions }
731
501
try:
732
command = self.checker_command % escaped_attrs
733
except TypeError as error:
734
logger.error('Could not format string "%s"',
735
self.checker_command,
736
exc_info=error)
737
return True # Try again later
502
# In case checker_command has exactly one % operator
503
command = self.checker_command % self.host
504
except TypeError:
505
# Escape attributes for the shell
506
escaped_attrs = dict(
507
(attr,
508
re.escape(unicode(str(getattr(self, attr, "")),
509
errors=
510
'replace')))
511
for attr in
512
self.runtime_expansions)
513
514
try:
515
command = self.checker_command % escaped_attrs
516
except TypeError as error:
517
logger.error('Could not format string "%s":'
518
' %s', self.checker_command, error)
519
return True # Try again later
738
520
self.current_checker_command = command
739
logger.info("Starting checker %r for %s", command,
740
self.name)
741
# We don't need to redirect stdout and stderr, since
742
# in normal mode, that is already done by daemon(),
743
# and in debug mode we don't want to. (Stdin is
744
# always replaced by /dev/null.)
745
# The exception is when not debugging but nevertheless
746
# running in the foreground; use the previously
747
# created wnull.
748
popen_args = { "close_fds": True,
749
"shell": True,
750
"cwd": "/" }
751
if (not self.server_settings["debug"]
752
and self.server_settings["foreground"]):
753
popen_args.update({"stdout": wnull,
754
"stderr": wnull })
755
pipe = multiprocessing.Pipe(duplex = False)
756
self.checker = multiprocessing.Process(
757
target = call_pipe,
758
args = (pipe[1], subprocess.call, command),
759
kwargs = popen_args)
760
self.checker.start()
761
self.checker_callback_tag = gobject.io_add_watch(
762
pipe[0].fileno(), gobject.IO_IN,
763
self.checker_callback, pipe[0], command)
521
try:
522
logger.info("Starting checker %r for %s",
523
command, self.name)
524
# We don't need to redirect stdout and stderr, since
525
# in normal mode, that is already done by daemon(),
526
# and in debug mode we don't want to. (Stdin is
527
# always replaced by /dev/null.)
528
self.checker = subprocess.Popen(command,
529
close_fds=True,
530
shell=True, cwd="/")
531
self.checker_callback_tag = (gobject.child_watch_add
532
(self.checker.pid,
533
self.checker_callback,
534
data=command))
535
# The checker may have completed before the gobject
536
# watch was added. Check for this.
537
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
538
if pid:
539
gobject.source_remove(self.checker_callback_tag)
540
self.checker_callback(pid, status, command)
541
except OSError as error:
542
logger.error("Failed to start subprocess: %s",
543
error)
764
544
# Re-run this periodically if run by gobject.timeout_add
765
545
return True
766
546
772
552
if getattr(self, "checker", None) is None:
773
553
return
774
554
logger.debug("Stopping checker for %(name)s", vars(self))
775
self.checker.terminate()
555
try:
556
os.kill(self.checker.pid, signal.SIGTERM)
557
#time.sleep(0.5)
558
#if self.checker.poll() is None:
559
# os.kill(self.checker.pid, signal.SIGKILL)
560
except OSError as error:
561
if error.errno != errno.ESRCH: # No such process
562
raise
776
563
self.checker = None
777
564
778
565
779
def dbus_service_property(dbus_interface,
780
signature="v",
781
access="readwrite",
782
byte_arrays=False):
566
def dbus_service_property(dbus_interface, signature="v",
567
access="readwrite", byte_arrays=False):
783
568
"""Decorators for marking methods of a DBusObjectWithProperties to
784
569
become properties on the D-Bus.
785
570
794
579
# "Set" method, so we fail early here:
795
580
if byte_arrays and signature != "ay":
796
581
raise ValueError("Byte arrays not supported for non-'ay'"
797
" signature {!r}".format(signature))
798
582
" signature %r" % signature)
799
583
def decorator(func):
800
584
func._dbus_is_property = True
801
585
func._dbus_interface = dbus_interface
806
590
func._dbus_name = func._dbus_name[:-14]
807
591
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
808
592
return func
809
810
return decorator
811
812
813
def dbus_interface_annotations(dbus_interface):
814
"""Decorator for marking functions returning interface annotations
815
816
Usage:
817
818
@dbus_interface_annotations("org.example.Interface")
819
def _foo(self): # Function name does not matter
820
return {"org.freedesktop.DBus.Deprecated": "true",
821
"org.freedesktop.DBus.Property.EmitsChangedSignal":
822
"false"}
823
"""
824
825
def decorator(func):
826
func._dbus_is_interface = True
827
func._dbus_interface = dbus_interface
828
func._dbus_name = dbus_interface
829
return func
830
831
return decorator
832
833
834
def dbus_annotations(annotations):
835
"""Decorator to annotate D-Bus methods, signals or properties
836
Usage:
837
838
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
839
"org.freedesktop.DBus.Property."
840
"EmitsChangedSignal": "false"})
841
@dbus_service_property("org.example.Interface", signature="b",
842
access="r")
843
def Property_dbus_property(self):
844
return dbus.Boolean(False)
845
"""
846
847
def decorator(func):
848
func._dbus_annotations = annotations
849
return func
850
851
593
return decorator
852
594
853
595
854
596
class DBusPropertyException(dbus.exceptions.DBusException):
855
597
"""A base class for D-Bus property-related exceptions
856
598
"""
857
pass
599
def __unicode__(self):
600
return unicode(str(self))
858
601
859
602
860
603
class DBusPropertyAccessException(DBusPropertyException):
878
621
"""
879
622
880
623
@staticmethod
881
def _is_dbus_thing(thing):
882
"""Returns a function testing if an attribute is a D-Bus thing
883
884
If called like _is_dbus_thing("method") it returns a function
885
suitable for use as predicate to inspect.getmembers().
886
"""
887
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
888
False)
624
def _is_dbus_property(obj):
625
return getattr(obj, "_dbus_is_property", False)
889
626
890
def _get_all_dbus_things(self, thing):
627
def _get_all_dbus_properties(self):
891
628
"""Returns a generator of (name, attribute) pairs
892
629
"""
893
return ((getattr(athing.__get__(self), "_dbus_name", name),
894
athing.__get__(self))
630
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
895
631
for cls in self.__class__.__mro__
896
for name, athing in
897
inspect.getmembers(cls, self._is_dbus_thing(thing)))
632
for name, prop in inspect.getmembers(cls, self._is_dbus_property))
898
633
899
634
def _get_dbus_property(self, interface_name, property_name):
900
635
"""Returns a bound method if one exists which is a D-Bus
901
636
property with the specified name and interface.
902
637
"""
903
for cls in self.__class__.__mro__:
904
for name, value in inspect.getmembers(
905
cls, self._is_dbus_thing("property")):
906
if (value._dbus_name == property_name
907
and value._dbus_interface == interface_name):
638
for cls in self.__class__.__mro__:
639
for name, value in inspect.getmembers(cls, self._is_dbus_property):
640
if value._dbus_name == property_name and value._dbus_interface == interface_name:
908
641
return value.__get__(self)
909
642
910
643
# No such property
911
raise DBusPropertyNotFound("{}:{}.{}".format(
912
self.dbus_object_path, interface_name, property_name))
644
raise DBusPropertyNotFound(self.dbus_object_path + ":"
645
+ interface_name + "."
646
+ property_name)
647
913
648
914
@dbus.service.method(dbus.PROPERTIES_IFACE,
915
in_signature="ss",
649
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
916
650
out_signature="v")
917
651
def Get(self, interface_name, property_name):
918
652
"""Standard D-Bus property Get() method, see D-Bus standard.
936
670
# The byte_arrays option is not supported yet on
937
671
# signatures other than "ay".
938
672
if prop._dbus_signature != "ay":
939
raise ValueError("Byte arrays not supported for non-"
940
"'ay' signature {!r}"
941
.format(prop._dbus_signature))
942
value = dbus.ByteArray(b''.join(chr(byte)
943
for byte in value))
673
raise ValueError
674
value = dbus.ByteArray(''.join(unichr(byte)
675
for byte in value))
944
676
prop(value)
945
677
946
@dbus.service.method(dbus.PROPERTIES_IFACE,
947
in_signature="s",
678
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
948
679
out_signature="a{sv}")
949
680
def GetAll(self, interface_name):
950
681
"""Standard D-Bus property GetAll() method, see D-Bus
952
683
953
684
Note: Will not include properties with access="write".
954
685
"""
955
properties = {}
956
for name, prop in self._get_all_dbus_things("property"):
686
all = {}
687
for name, prop in self._get_all_dbus_properties():
957
688
if (interface_name
958
689
and interface_name != prop._dbus_interface):
959
690
# Interface non-empty but did not match
963
694
continue
964
695
value = prop()
965
696
if not hasattr(value, "variant_level"):
966
properties[name] = value
697
all[name] = value
967
698
continue
968
properties[name] = type(value)(
969
value, variant_level = value.variant_level + 1)
970
return dbus.Dictionary(properties, signature="sv")
971
972
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
973
def PropertiesChanged(self, interface_name, changed_properties,
974
invalidated_properties):
975
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
976
standard.
977
"""
978
pass
699
all[name] = type(value)(value, variant_level=
700
value.variant_level+1)
701
return dbus.Dictionary(all, signature="sv")
979
702
980
703
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
981
704
out_signature="s",
982
705
path_keyword='object_path',
983
706
connection_keyword='connection')
984
707
def Introspect(self, object_path, connection):
985
"""Overloading of standard D-Bus method.
986
987
Inserts property tags and interface annotation tags.
708
"""Standard D-Bus method, overloaded to insert property tags.
988
709
"""
989
710
xmlstring = dbus.service.Object.Introspect(self, object_path,
990
711
connection)
991
712
try:
992
713
document = xml.dom.minidom.parseString(xmlstring)
993
994
714
def make_tag(document, name, prop):
995
715
e = document.createElement("property")
996
716
e.setAttribute("name", name)
997
717
e.setAttribute("type", prop._dbus_signature)
998
718
e.setAttribute("access", prop._dbus_access)
999
719
return e
1000
1001
720
for if_tag in document.getElementsByTagName("interface"):
1002
# Add property tags
1003
721
for tag in (make_tag(document, name, prop)
1004
722
for name, prop
1005
in self._get_all_dbus_things("property")
723
in self._get_all_dbus_properties()
1006
724
if prop._dbus_interface
1007
725
== if_tag.getAttribute("name")):
1008
726
if_tag.appendChild(tag)
1009
# Add annotation tags
1010
for typ in ("method", "signal", "property"):
1011
for tag in if_tag.getElementsByTagName(typ):
1012
annots = dict()
1013
for name, prop in (self.
1014
_get_all_dbus_things(typ)):
1015
if (name == tag.getAttribute("name")
1016
and prop._dbus_interface
1017
== if_tag.getAttribute("name")):
1018
annots.update(getattr(
1019
prop, "_dbus_annotations", {}))
1020
for name, value in annots.items():
1021
ann_tag = document.createElement(
1022
"annotation")
1023
ann_tag.setAttribute("name", name)
1024
ann_tag.setAttribute("value", value)
1025
tag.appendChild(ann_tag)
1026
# Add interface annotation tags
1027
for annotation, value in dict(
1028
itertools.chain.from_iterable(
1029
annotations().items()
1030
for name, annotations
1031
in self._get_all_dbus_things("interface")
1032
if name == if_tag.getAttribute("name")
1033
)).items():
1034
ann_tag = document.createElement("annotation")
1035
ann_tag.setAttribute("name", annotation)
1036
ann_tag.setAttribute("value", value)
1037
if_tag.appendChild(ann_tag)
1038
727
# Add the names to the return values for the
1039
728
# "org.freedesktop.DBus.Properties" methods
1040
729
if (if_tag.getAttribute("name")
1055
744
except (AttributeError, xml.dom.DOMException,
1056
745
xml.parsers.expat.ExpatError) as error:
1057
746
logger.error("Failed to override Introspection method",
1058
exc_info=error)
747
error)
1059
748
return xmlstring
1060
749
1061
750
1062
def datetime_to_dbus(dt, variant_level=0):
751
def datetime_to_dbus (dt, variant_level=0):
1063
752
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1064
753
if dt is None:
1065
754
return dbus.String("", variant_level = variant_level)
1066
return dbus.String(dt.isoformat(), variant_level=variant_level)
1067
1068
1069
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1070
"""A class decorator; applied to a subclass of
1071
dbus.service.Object, it will add alternate D-Bus attributes with
1072
interface names according to the "alt_interface_names" mapping.
1073
Usage:
1074
1075
@alternate_dbus_interfaces({"org.example.Interface":
1076
"net.example.AlternateInterface"})
1077
class SampleDBusObject(dbus.service.Object):
1078
@dbus.service.method("org.example.Interface")
1079
def SampleDBusMethod():
1080
pass
1081
1082
The above "SampleDBusMethod" on "SampleDBusObject" will be
1083
reachable via two interfaces: "org.example.Interface" and
1084
"net.example.AlternateInterface", the latter of which will have
1085
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1086
"true", unless "deprecate" is passed with a False value.
1087
1088
This works for methods and signals, and also for D-Bus properties
1089
(from DBusObjectWithProperties) and interfaces (from the
1090
dbus_interface_annotations decorator).
1091
"""
1092
1093
def wrapper(cls):
1094
for orig_interface_name, alt_interface_name in (
1095
alt_interface_names.items()):
1096
attr = {}
1097
interface_names = set()
1098
# Go though all attributes of the class
1099
for attrname, attribute in inspect.getmembers(cls):
1100
# Ignore non-D-Bus attributes, and D-Bus attributes
1101
# with the wrong interface name
1102
if (not hasattr(attribute, "_dbus_interface")
1103
or not attribute._dbus_interface.startswith(
1104
orig_interface_name)):
1105
continue
1106
# Create an alternate D-Bus interface name based on
1107
# the current name
1108
alt_interface = attribute._dbus_interface.replace(
1109
orig_interface_name, alt_interface_name)
1110
interface_names.add(alt_interface)
1111
# Is this a D-Bus signal?
1112
if getattr(attribute, "_dbus_is_signal", False):
1113
if sys.version_info.major == 2:
1114
# Extract the original non-method undecorated
1115
# function by black magic
1116
nonmethod_func = (dict(
1117
zip(attribute.func_code.co_freevars,
1118
attribute.__closure__))
1119
["func"].cell_contents)
1120
else:
1121
nonmethod_func = attribute
1122
# Create a new, but exactly alike, function
1123
# object, and decorate it to be a new D-Bus signal
1124
# with the alternate D-Bus interface name
1125
if sys.version_info.major == 2:
1126
new_function = types.FunctionType(
1127
nonmethod_func.func_code,
1128
nonmethod_func.func_globals,
1129
nonmethod_func.func_name,
1130
nonmethod_func.func_defaults,
1131
nonmethod_func.func_closure)
1132
else:
1133
new_function = types.FunctionType(
1134
nonmethod_func.__code__,
1135
nonmethod_func.__globals__,
1136
nonmethod_func.__name__,
1137
nonmethod_func.__defaults__,
1138
nonmethod_func.__closure__)
1139
new_function = (dbus.service.signal(
1140
alt_interface,
1141
attribute._dbus_signature)(new_function))
1142
# Copy annotations, if any
1143
try:
1144
new_function._dbus_annotations = dict(
1145
attribute._dbus_annotations)
1146
except AttributeError:
1147
pass
1148
# Define a creator of a function to call both the
1149
# original and alternate functions, so both the
1150
# original and alternate signals gets sent when
1151
# the function is called
1152
def fixscope(func1, func2):
1153
"""This function is a scope container to pass
1154
func1 and func2 to the "call_both" function
1155
outside of its arguments"""
1156
1157
def call_both(*args, **kwargs):
1158
"""This function will emit two D-Bus
1159
signals by calling func1 and func2"""
1160
func1(*args, **kwargs)
1161
func2(*args, **kwargs)
1162
1163
return call_both
1164
# Create the "call_both" function and add it to
1165
# the class
1166
attr[attrname] = fixscope(attribute, new_function)
1167
# Is this a D-Bus method?
1168
elif getattr(attribute, "_dbus_is_method", False):
1169
# Create a new, but exactly alike, function
1170
# object. Decorate it to be a new D-Bus method
1171
# with the alternate D-Bus interface name. Add it
1172
# to the class.
1173
attr[attrname] = (
1174
dbus.service.method(
1175
alt_interface,
1176
attribute._dbus_in_signature,
1177
attribute._dbus_out_signature)
1178
(types.FunctionType(attribute.func_code,
1179
attribute.func_globals,
1180
attribute.func_name,
1181
attribute.func_defaults,
1182
attribute.func_closure)))
1183
# Copy annotations, if any
1184
try:
1185
attr[attrname]._dbus_annotations = dict(
1186
attribute._dbus_annotations)
1187
except AttributeError:
1188
pass
1189
# Is this a D-Bus property?
1190
elif getattr(attribute, "_dbus_is_property", False):
1191
# Create a new, but exactly alike, function
1192
# object, and decorate it to be a new D-Bus
1193
# property with the alternate D-Bus interface
1194
# name. Add it to the class.
1195
attr[attrname] = (dbus_service_property(
1196
alt_interface, attribute._dbus_signature,
1197
attribute._dbus_access,
1198
attribute._dbus_get_args_options
1199
["byte_arrays"])
1200
(types.FunctionType(
1201
attribute.func_code,
1202
attribute.func_globals,
1203
attribute.func_name,
1204
attribute.func_defaults,
1205
attribute.func_closure)))
1206
# Copy annotations, if any
1207
try:
1208
attr[attrname]._dbus_annotations = dict(
1209
attribute._dbus_annotations)
1210
except AttributeError:
1211
pass
1212
# Is this a D-Bus interface?
1213
elif getattr(attribute, "_dbus_is_interface", False):
1214
# Create a new, but exactly alike, function
1215
# object. Decorate it to be a new D-Bus interface
1216
# with the alternate D-Bus interface name. Add it
1217
# to the class.
1218
attr[attrname] = (
1219
dbus_interface_annotations(alt_interface)
1220
(types.FunctionType(attribute.func_code,
1221
attribute.func_globals,
1222
attribute.func_name,
1223
attribute.func_defaults,
1224
attribute.func_closure)))
1225
if deprecate:
1226
# Deprecate all alternate interfaces
1227
iname="_AlternateDBusNames_interface_annotation{}"
1228
for interface_name in interface_names:
1229
1230
@dbus_interface_annotations(interface_name)
1231
def func(self):
1232
return { "org.freedesktop.DBus.Deprecated":
1233
"true" }
1234
# Find an unused name
1235
for aname in (iname.format(i)
1236
for i in itertools.count()):
1237
if aname not in attr:
1238
attr[aname] = func
1239
break
1240
if interface_names:
1241
# Replace the class with a new subclass of it with
1242
# methods, signals, etc. as created above.
1243
cls = type(b"{}Alternate".format(cls.__name__),
1244
(cls, ), attr)
1245
return cls
1246
1247
return wrapper
1248
1249
1250
@alternate_dbus_interfaces({"se.recompile.Mandos":
1251
"se.bsnet.fukt.Mandos"})
755
return dbus.String(dt.isoformat(),
756
variant_level=variant_level)
757
758
class transitional_dbus_metaclass(DBusObjectWithProperties.__metaclass__):
759
def __new__(mcs, name, bases, attr):
760
for attrname, old_dbusobj in inspect.getmembers(bases[0]):
761
new_interface = getattr(old_dbusobj, "_dbus_interface", "").replace("se.bsnet.fukt.", "se.recompile.")
762
if (getattr(old_dbusobj, "_dbus_is_signal", False)
763
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
764
unwrappedfunc = dict(zip(old_dbusobj.func_code.co_freevars,
765
old_dbusobj.__closure__))["func"].cell_contents
766
newfunc = types.FunctionType(unwrappedfunc.func_code,
767
unwrappedfunc.func_globals,
768
unwrappedfunc.func_name,
769
unwrappedfunc.func_defaults,
770
unwrappedfunc.func_closure)
771
new_dbusfunc = dbus.service.signal(
772
new_interface, old_dbusobj._dbus_signature)(newfunc)
773
attr["_transitional_" + attrname] = new_dbusfunc
774
775
def fixscope(func1, func2):
776
def newcall(*args, **kwargs):
777
func1(*args, **kwargs)
778
func2(*args, **kwargs)
779
return newcall
780
781
attr[attrname] = fixscope(old_dbusobj, new_dbusfunc)
782
783
elif (getattr(old_dbusobj, "_dbus_is_method", False)
784
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
785
new_dbusfunc = (dbus.service.method
786
(new_interface,
787
old_dbusobj._dbus_in_signature,
788
old_dbusobj._dbus_out_signature)
789
(types.FunctionType
790
(old_dbusobj.func_code,
791
old_dbusobj.func_globals,
792
old_dbusobj.func_name,
793
old_dbusobj.func_defaults,
794
old_dbusobj.func_closure)))
795
796
attr[attrname] = new_dbusfunc
797
elif (getattr(old_dbusobj, "_dbus_is_property", False)
798
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
799
new_dbusfunc = (dbus_service_property
800
(new_interface,
801
old_dbusobj._dbus_signature,
802
old_dbusobj._dbus_access,
803
old_dbusobj._dbus_get_args_options["byte_arrays"])
804
(types.FunctionType
805
(old_dbusobj.func_code,
806
old_dbusobj.func_globals,
807
old_dbusobj.func_name,
808
old_dbusobj.func_defaults,
809
old_dbusobj.func_closure)))
810
811
attr[attrname] = new_dbusfunc
812
return type.__new__(mcs, name, bases, attr)
813
1252
814
class ClientDBus(Client, DBusObjectWithProperties):
1253
815
"""A Client class using D-Bus
1254
816
1258
820
"""
1259
821
1260
822
runtime_expansions = (Client.runtime_expansions
1261
+ ("dbus_object_path", ))
1262
1263
_interface = "se.recompile.Mandos.Client"
823
+ ("dbus_object_path",))
1264
824
1265
825
# dbus.service.Object doesn't use super(), so we can't either.
1266
826
1267
827
def __init__(self, bus = None, *args, **kwargs):
828
self._approvals_pending = 0
1268
829
self.bus = bus
1269
830
Client.__init__(self, *args, **kwargs)
1270
831
# Only now, when this client is initialized, can it show up on
1271
832
# the D-Bus
1272
client_object_name = str(self.name).translate(
833
client_object_name = unicode(self.name).translate(
1273
834
{ord("."): ord("_"),
1274
835
ord("-"): ord("_")})
1275
self.dbus_object_path = dbus.ObjectPath(
1276
"/clients/" + client_object_name)
836
self.dbus_object_path = (dbus.ObjectPath
837
("/clients/" + client_object_name))
1277
838
DBusObjectWithProperties.__init__(self, self.bus,
1278
839
self.dbus_object_path)
1279
1280
def notifychangeproperty(transform_func, dbus_name,
1281
type_func=lambda x: x,
1282
variant_level=1,
1283
invalidate_only=False,
1284
_interface=_interface):
1285
""" Modify a variable so that it's a property which announces
1286
its changes to DBus.
1287
840
1288
transform_fun: Function that takes a value and a variant_level
1289
and transforms it to a D-Bus type.
1290
dbus_name: D-Bus name of the variable
841
def notifychangeproperty(transform_func,
842
dbus_name, type_func=lambda x: x,
843
variant_level=1):
844
""" Modify a variable so that its a property that announce its
845
changes to DBus.
846
transform_fun: Function that takes a value and transform it to
847
DBus type.
848
dbus_name: DBus name of the variable
1291
849
type_func: Function that transform the value before sending it
1292
to the D-Bus. Default: no transform
1293
variant_level: D-Bus variant level. Default: 1
850
to DBus
851
variant_level: DBus variant level. default: 1
1294
852
"""
1295
attrname = "_{}".format(dbus_name)
1296
853
real_value = [None,]
1297
854
def setter(self, value):
855
old_value = real_value[0]
856
real_value[0] = value
1298
857
if hasattr(self, "dbus_object_path"):
1299
if (not hasattr(self, attrname) or
1300
type_func(getattr(self, attrname, None))
1301
!= type_func(value)):
1302
if invalidate_only:
1303
self.PropertiesChanged(
1304
_interface, dbus.Dictionary(),
1305
dbus.Array((dbus_name, )))
1306
else:
1307
dbus_value = transform_func(
1308
type_func(value),
1309
variant_level = variant_level)
1310
self.PropertyChanged(dbus.String(dbus_name),
1311
dbus_value)
1312
self.PropertiesChanged(
1313
_interface,
1314
dbus.Dictionary({ dbus.String(dbus_name):
1315
dbus_value }),
1316
dbus.Array())
1317
setattr(self, attrname, value)
858
if type_func(old_value) != type_func(real_value[0]):
859
dbus_value = transform_func(type_func(real_value[0]),
860
variant_level)
861
self.PropertyChanged(dbus.String(dbus_name),
862
dbus_value)
1318
863
1319
return property(lambda self: getattr(self, attrname), setter)
864
return property(lambda self: real_value[0], setter)
865
1320
866
1321
867
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1322
868
approvals_pending = notifychangeproperty(dbus.Boolean,
1325
871
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1326
872
last_enabled = notifychangeproperty(datetime_to_dbus,
1327
873
"LastEnabled")
1328
checker = notifychangeproperty(
1329
dbus.Boolean, "CheckerRunning",
1330
type_func = lambda checker: checker is not None)
874
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
875
type_func = lambda checker: checker is not None)
1331
876
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1332
877
"LastCheckedOK")
1333
last_checker_status = notifychangeproperty(dbus.Int16,
1334
"LastCheckerStatus")
1335
last_approval_request = notifychangeproperty(
1336
datetime_to_dbus, "LastApprovalRequest")
878
last_approval_request = notifychangeproperty(datetime_to_dbus,
879
"LastApprovalRequest")
1337
880
approved_by_default = notifychangeproperty(dbus.Boolean,
1338
881
"ApprovedByDefault")
1339
approval_delay = notifychangeproperty(
1340
dbus.UInt64, "ApprovalDelay",
1341
type_func = lambda td: td.total_seconds() * 1000)
1342
approval_duration = notifychangeproperty(
1343
dbus.UInt64, "ApprovalDuration",
1344
type_func = lambda td: td.total_seconds() * 1000)
882
approval_delay = notifychangeproperty(dbus.UInt16, "ApprovalDelay",
883
type_func = _timedelta_to_milliseconds)
884
approval_duration = notifychangeproperty(dbus.UInt16, "ApprovalDuration",
885
type_func = _timedelta_to_milliseconds)
1345
886
host = notifychangeproperty(dbus.String, "Host")
1346
timeout = notifychangeproperty(
1347
dbus.UInt64, "Timeout",
1348
type_func = lambda td: td.total_seconds() * 1000)
1349
extended_timeout = notifychangeproperty(
1350
dbus.UInt64, "ExtendedTimeout",
1351
type_func = lambda td: td.total_seconds() * 1000)
1352
interval = notifychangeproperty(
1353
dbus.UInt64, "Interval",
1354
type_func = lambda td: td.total_seconds() * 1000)
887
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
888
type_func = _timedelta_to_milliseconds)
889
extended_timeout = notifychangeproperty(dbus.UInt16, "ExtendedTimeout",
890
type_func = _timedelta_to_milliseconds)
891
interval = notifychangeproperty(dbus.UInt16, "Interval",
892
type_func = _timedelta_to_milliseconds)
1355
893
checker_command = notifychangeproperty(dbus.String, "Checker")
1356
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1357
invalidate_only=True)
1358
894
1359
895
del notifychangeproperty
1360
896
1367
903
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1368
904
Client.__del__(self, *args, **kwargs)
1369
905
1370
def checker_callback(self, source, condition,
1371
connection, command, *args, **kwargs):
1372
ret = Client.checker_callback(self, source, condition,
1373
connection, command, *args,
1374
**kwargs)
1375
exitstatus = self.last_checker_status
1376
if exitstatus >= 0:
906
def checker_callback(self, pid, condition, command,
907
*args, **kwargs):
908
self.checker_callback_tag = None
909
self.checker = None
910
if os.WIFEXITED(condition):
911
exitstatus = os.WEXITSTATUS(condition)
1377
912
# Emit D-Bus signal
1378
913
self.CheckerCompleted(dbus.Int16(exitstatus),
1379
dbus.Int64(0),
914
dbus.Int64(condition),
1380
915
dbus.String(command))
1381
916
else:
1382
917
# Emit D-Bus signal
1383
918
self.CheckerCompleted(dbus.Int16(-1),
1384
dbus.Int64(
1385
self.last_checker_signal),
919
dbus.Int64(condition),
1386
920
dbus.String(command))
1387
return ret
921
922
return Client.checker_callback(self, pid, condition, command,
923
*args, **kwargs)
1388
924
1389
925
def start_checker(self, *args, **kwargs):
1390
old_checker_pid = getattr(self.checker, "pid", None)
926
old_checker = self.checker
927
if self.checker is not None:
928
old_checker_pid = self.checker.pid
929
else:
930
old_checker_pid = None
1391
931
r = Client.start_checker(self, *args, **kwargs)
1392
932
# Only if new checker process was started
1393
933
if (self.checker is not None
1397
937
return r
1398
938
1399
939
def _reset_approved(self):
1400
self.approved = None
940
self._approved = None
1401
941
return False
1402
942
1403
943
def approve(self, value=True):
1404
self.approved = value
1405
gobject.timeout_add(int(self.approval_duration.total_seconds()
1406
* 1000), self._reset_approved)
1407
944
self.send_changedstate()
945
self._approved = value
946
gobject.timeout_add(_timedelta_to_milliseconds
947
(self.approval_duration),
948
self._reset_approved)
949
1408
950
1409
951
## D-Bus methods, signals & properties
1410
1411
## Interfaces
1412
952
_interface = "se.bsnet.fukt.Mandos.Client"
953
1413
954
## Signals
1414
955
1415
956
# CheckerCompleted - signal
1425
966
pass
1426
967
1427
968
# PropertyChanged - signal
1428
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1429
969
@dbus.service.signal(_interface, signature="sv")
1430
970
def PropertyChanged(self, property, value):
1431
971
"D-Bus signal"
1495
1035
return dbus.Boolean(bool(self.approvals_pending))
1496
1036
1497
1037
# ApprovedByDefault - property
1498
@dbus_service_property(_interface,
1499
signature="b",
1038
@dbus_service_property(_interface, signature="b",
1500
1039
access="readwrite")
1501
1040
def ApprovedByDefault_dbus_property(self, value=None):
1502
1041
if value is None: # get
1504
1043
self.approved_by_default = bool(value)
1505
1044
1506
1045
# ApprovalDelay - property
1507
@dbus_service_property(_interface,
1508
signature="t",
1046
@dbus_service_property(_interface, signature="t",
1509
1047
access="readwrite")
1510
1048
def ApprovalDelay_dbus_property(self, value=None):
1511
1049
if value is None: # get
1512
return dbus.UInt64(self.approval_delay.total_seconds()
1513
* 1000)
1050
return dbus.UInt64(self.approval_delay_milliseconds())
1514
1051
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1515
1052
1516
1053
# ApprovalDuration - property
1517
@dbus_service_property(_interface,
1518
signature="t",
1054
@dbus_service_property(_interface, signature="t",
1519
1055
access="readwrite")
1520
1056
def ApprovalDuration_dbus_property(self, value=None):
1521
1057
if value is None: # get
1522
return dbus.UInt64(self.approval_duration.total_seconds()
1523
* 1000)
1058
return dbus.UInt64(_timedelta_to_milliseconds(
1059
self.approval_duration))
1524
1060
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1525
1061
1526
1062
# Name - property
1534
1070
return dbus.String(self.fingerprint)
1535
1071
1536
1072
# Host - property
1537
@dbus_service_property(_interface,
1538
signature="s",
1073
@dbus_service_property(_interface, signature="s",
1539
1074
access="readwrite")
1540
1075
def Host_dbus_property(self, value=None):
1541
1076
if value is None: # get
1542
1077
return dbus.String(self.host)
1543
self.host = str(value)
1078
self.host = value
1544
1079
1545
1080
# Created - property
1546
1081
@dbus_service_property(_interface, signature="s", access="read")
1547
1082
def Created_dbus_property(self):
1548
return datetime_to_dbus(self.created)
1083
return dbus.String(datetime_to_dbus(self.created))
1549
1084
1550
1085
# LastEnabled - property
1551
1086
@dbus_service_property(_interface, signature="s", access="read")
1553
1088
return datetime_to_dbus(self.last_enabled)
1554
1089
1555
1090
# Enabled - property
1556
@dbus_service_property(_interface,
1557
signature="b",
1091
@dbus_service_property(_interface, signature="b",
1558
1092
access="readwrite")
1559
1093
def Enabled_dbus_property(self, value=None):
1560
1094
if value is None: # get
1565
1099
self.disable()
1566
1100
1567
1101
# LastCheckedOK - property
1568
@dbus_service_property(_interface,
1569
signature="s",
1102
@dbus_service_property(_interface, signature="s",
1570
1103
access="readwrite")
1571
1104
def LastCheckedOK_dbus_property(self, value=None):
1572
1105
if value is not None:
1574
1107
return
1575
1108
return datetime_to_dbus(self.last_checked_ok)
1576
1109
1577
# LastCheckerStatus - property
1578
@dbus_service_property(_interface, signature="n", access="read")
1579
def LastCheckerStatus_dbus_property(self):
1580
return dbus.Int16(self.last_checker_status)
1581
1582
1110
# Expires - property
1583
1111
@dbus_service_property(_interface, signature="s", access="read")
1584
1112
def Expires_dbus_property(self):
1590
1118
return datetime_to_dbus(self.last_approval_request)
1591
1119
1592
1120
# Timeout - property
1593
@dbus_service_property(_interface,
1594
signature="t",
1121
@dbus_service_property(_interface, signature="t",
1595
1122
access="readwrite")
1596
1123
def Timeout_dbus_property(self, value=None):
1597
1124
if value is None: # get
1598
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1599
old_timeout = self.timeout
1125
return dbus.UInt64(self.timeout_milliseconds())
1600
1126
self.timeout = datetime.timedelta(0, 0, 0, value)
1601
# Reschedule disabling
1602
if self.enabled:
1603
now = datetime.datetime.utcnow()
1604
self.expires += self.timeout - old_timeout
1605
if self.expires <= now:
1606
# The timeout has passed
1607
self.disable()
1608
else:
1609
if (getattr(self, "disable_initiator_tag", None)
1610
is None):
1611
return
1612
gobject.source_remove(self.disable_initiator_tag)
1613
self.disable_initiator_tag = gobject.timeout_add(
1614
int((self.expires - now).total_seconds() * 1000),
1615
self.disable)
1127
if getattr(self, "disable_initiator_tag", None) is None:
1128
return
1129
# Reschedule timeout
1130
gobject.source_remove(self.disable_initiator_tag)
1131
self.disable_initiator_tag = None
1132
self.expires = None
1133
time_to_die = (self.
1134
_timedelta_to_milliseconds((self
1135
.last_checked_ok
1136
+ self.timeout)
1137
- datetime.datetime
1138
.utcnow()))
1139
if time_to_die <= 0:
1140
# The timeout has passed
1141
self.disable()
1142
else:
1143
self.expires = (datetime.datetime.utcnow()
1144
+ datetime.timedelta(milliseconds = time_to_die))
1145
self.disable_initiator_tag = (gobject.timeout_add
1146
(time_to_die, self.disable))
1616
1147
1617
1148
# ExtendedTimeout - property
1618
@dbus_service_property(_interface,
1619
signature="t",
1149
@dbus_service_property(_interface, signature="t",
1620
1150
access="readwrite")
1621
1151
def ExtendedTimeout_dbus_property(self, value=None):
1622
1152
if value is None: # get
1623
return dbus.UInt64(self.extended_timeout.total_seconds()
1624
* 1000)
1153
return dbus.UInt64(self.extended_timeout_milliseconds())
1625
1154
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1626
1155
1627
1156
# Interval - property
1628
@dbus_service_property(_interface,
1629
signature="t",
1157
@dbus_service_property(_interface, signature="t",
1630
1158
access="readwrite")
1631
1159
def Interval_dbus_property(self, value=None):
1632
1160
if value is None: # get
1633
return dbus.UInt64(self.interval.total_seconds() * 1000)
1161
return dbus.UInt64(self.interval_milliseconds())
1634
1162
self.interval = datetime.timedelta(0, 0, 0, value)
1635
1163
if getattr(self, "checker_initiator_tag", None) is None:
1636
1164
return
1637
if self.enabled:
1638
# Reschedule checker run
1639
gobject.source_remove(self.checker_initiator_tag)
1640
self.checker_initiator_tag = gobject.timeout_add(
1641
value, self.start_checker)
1642
self.start_checker() # Start one now, too
1165
# Reschedule checker run
1166
gobject.source_remove(self.checker_initiator_tag)
1167
self.checker_initiator_tag = (gobject.timeout_add
1168
(value, self.start_checker))
1169
self.start_checker() # Start one now, too
1643
1170
1644
1171
# Checker - property
1645
@dbus_service_property(_interface,
1646
signature="s",
1172
@dbus_service_property(_interface, signature="s",
1647
1173
access="readwrite")
1648
1174
def Checker_dbus_property(self, value=None):
1649
1175
if value is None: # get
1650
1176
return dbus.String(self.checker_command)
1651
self.checker_command = str(value)
1177
self.checker_command = value
1652
1178
1653
1179
# CheckerRunning - property
1654
@dbus_service_property(_interface,
1655
signature="b",
1180
@dbus_service_property(_interface, signature="b",
1656
1181
access="readwrite")
1657
1182
def CheckerRunning_dbus_property(self, value=None):
1658
1183
if value is None: # get
1668
1193
return self.dbus_object_path # is already a dbus.ObjectPath
1669
1194
1670
1195
# Secret = property
1671
@dbus_service_property(_interface,
1672
signature="ay",
1673
access="write",
1674
byte_arrays=True)
1196
@dbus_service_property(_interface, signature="ay",
1197
access="write", byte_arrays=True)
1675
1198
def Secret_dbus_property(self, value):
1676
self.secret = bytes(value)
1199
self.secret = str(value)
1677
1200
1678
1201
del _interface
1679
1202
1683
1206
self._pipe = child_pipe
1684
1207
self._pipe.send(('init', fpr, address))
1685
1208
if not self._pipe.recv():
1686
raise KeyError(fpr)
1209
raise KeyError()
1687
1210
1688
1211
def __getattribute__(self, name):
1689
if name == '_pipe':
1212
if(name == '_pipe'):
1690
1213
return super(ProxyClient, self).__getattribute__(name)
1691
1214
self._pipe.send(('getattr', name))
1692
1215
data = self._pipe.recv()
1693
1216
if data[0] == 'data':
1694
1217
return data[1]
1695
1218
if data[0] == 'function':
1696
1697
1219
def func(*args, **kwargs):
1698
1220
self._pipe.send(('funcall', name, args, kwargs))
1699
1221
return self._pipe.recv()[1]
1700
1701
1222
return func
1702
1223
1703
1224
def __setattr__(self, name, value):
1704
if name == '_pipe':
1225
if(name == '_pipe'):
1705
1226
return super(ProxyClient, self).__setattr__(name, value)
1706
1227
self._pipe.send(('setattr', name, value))
1707
1228
1229
class ClientDBusTransitional(ClientDBus):
1230
__metaclass__ = transitional_dbus_metaclass
1708
1231
1709
1232
class ClientHandler(socketserver.BaseRequestHandler, object):
1710
1233
"""A class to handle client connections.
1715
1238
def handle(self):
1716
1239
with contextlib.closing(self.server.child_pipe) as child_pipe:
1717
1240
logger.info("TCP connection from: %s",
1718
str(self.client_address))
1241
unicode(self.client_address))
1719
1242
logger.debug("Pipe FD: %d",
1720
1243
self.server.child_pipe.fileno())
1721
1244
1722
session = gnutls.connection.ClientSession(
1723
self.request, gnutls.connection .X509Credentials())
1245
session = (gnutls.connection
1246
.ClientSession(self.request,
1247
gnutls.connection
1248
.X509Credentials()))
1724
1249
1725
1250
# Note: gnutls.connection.X509Credentials is really a
1726
1251
# generic GnuTLS certificate credentials object so long as
1735
1260
priority = self.server.gnutls_priority
1736
1261
if priority is None:
1737
1262
priority = "NORMAL"
1738
gnutls.library.functions.gnutls_priority_set_direct(
1739
session._c_object, priority, None)
1263
(gnutls.library.functions
1264
.gnutls_priority_set_direct(session._c_object,
1265
priority, None))
1740
1266
1741
1267
# Start communication using the Mandos protocol
1742
1268
# Get protocol number
1744
1270
logger.debug("Protocol version: %r", line)
1745
1271
try:
1746
1272
if int(line.strip().split()[0]) > 1:
1747
raise RuntimeError(line)
1273
raise RuntimeError
1748
1274
except (ValueError, IndexError, RuntimeError) as error:
1749
1275
logger.error("Unknown protocol version: %s", error)
1750
1276
return
1762
1288
approval_required = False
1763
1289
try:
1764
1290
try:
1765
fpr = self.fingerprint(
1766
self.peer_certificate(session))
1291
fpr = self.fingerprint(self.peer_certificate
1292
(session))
1767
1293
except (TypeError,
1768
1294
gnutls.errors.GNUTLSError) as error:
1769
1295
logger.warning("Bad certificate: %s", error)
1784
1310
while True:
1785
1311
if not client.enabled:
1786
1312
logger.info("Client %s is disabled",
1787
client.name)
1313
client.name)
1788
1314
if self.server.use_dbus:
1789
1315
# Emit D-Bus signal
1790
client.Rejected("Disabled")
1316
client.Rejected("Disabled")
1791
1317
return
1792
1318
1793
if client.approved or not client.approval_delay:
1319
if client._approved or not client.approval_delay:
1794
1320
#We are approved or approval is disabled
1795
1321
break
1796
elif client.approved is None:
1322
elif client._approved is None:
1797
1323
logger.info("Client %s needs approval",
1798
1324
client.name)
1799
1325
if self.server.use_dbus:
1800
1326
# Emit D-Bus signal
1801
1327
client.NeedApproval(
1802
client.approval_delay.total_seconds()
1803
* 1000, client.approved_by_default)
1328
client.approval_delay_milliseconds(),
1329
client.approved_by_default)
1804
1330
else:
1805
1331
logger.warning("Client %s was not approved",
1806
1332
client.name)
1810
1336
return
1811
1337
1812
1338
#wait until timeout or approved
1339
#x = float(client._timedelta_to_milliseconds(delay))
1813
1340
time = datetime.datetime.now()
1814
1341
client.changedstate.acquire()
1815
client.changedstate.wait(delay.total_seconds())
1342
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1816
1343
client.changedstate.release()
1817
1344
time2 = datetime.datetime.now()
1818
1345
if (time2 - time) >= delay:
1834
1361
try:
1835
1362
sent = session.send(client.secret[sent_size:])
1836
1363
except gnutls.errors.GNUTLSError as error:
1837
logger.warning("gnutls send failed",
1838
exc_info=error)
1364
logger.warning("gnutls send failed")
1839
1365
return
1840
logger.debug("Sent: %d, remaining: %d", sent,
1841
len(client.secret) - (sent_size
1842
+ sent))
1366
logger.debug("Sent: %d, remaining: %d",
1367
sent, len(client.secret)
1368
- (sent_size + sent))
1843
1369
sent_size += sent
1844
1370
1845
1371
logger.info("Sending secret to %s", client.name)
1846
# bump the timeout using extended_timeout
1847
client.bump_timeout(client.extended_timeout)
1372
# bump the timeout as if seen
1373
client.checked_ok(client.extended_timeout)
1848
1374
if self.server.use_dbus:
1849
1375
# Emit D-Bus signal
1850
1376
client.GotSecret()
1855
1381
try:
1856
1382
session.bye()
1857
1383
except gnutls.errors.GNUTLSError as error:
1858
logger.warning("GnuTLS bye failed",
1859
exc_info=error)
1384
logger.warning("GnuTLS bye failed")
1860
1385
1861
1386
@staticmethod
1862
1387
def peer_certificate(session):
1863
1388
"Return the peer's OpenPGP certificate as a bytestring"
1864
1389
# If not an OpenPGP certificate...
1865
if (gnutls.library.functions.gnutls_certificate_type_get(
1866
session._c_object)
1390
if (gnutls.library.functions
1391
.gnutls_certificate_type_get(session._c_object)
1867
1392
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1868
1393
# ...do the normal thing
1869
1394
return session.peer_certificate
1883
1408
def fingerprint(openpgp):
1884
1409
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1885
1410
# New GnuTLS "datum" with the OpenPGP public key
1886
datum = gnutls.library.types.gnutls_datum_t(
1887
ctypes.cast(ctypes.c_char_p(openpgp),
1888
ctypes.POINTER(ctypes.c_ubyte)),
1889
ctypes.c_uint(len(openpgp)))
1411
datum = (gnutls.library.types
1412
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1413
ctypes.POINTER
1414
(ctypes.c_ubyte)),
1415
ctypes.c_uint(len(openpgp))))
1890
1416
# New empty GnuTLS certificate
1891
1417
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1892
gnutls.library.functions.gnutls_openpgp_crt_init(
1893
ctypes.byref(crt))
1418
(gnutls.library.functions
1419
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1894
1420
# Import the OpenPGP public key into the certificate
1895
gnutls.library.functions.gnutls_openpgp_crt_import(
1896
crt, ctypes.byref(datum),
1897
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1421
(gnutls.library.functions
1422
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1423
gnutls.library.constants
1424
.GNUTLS_OPENPGP_FMT_RAW))
1898
1425
# Verify the self signature in the key
1899
1426
crtverify = ctypes.c_uint()
1900
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1901
crt, 0, ctypes.byref(crtverify))
1427
(gnutls.library.functions
1428
.gnutls_openpgp_crt_verify_self(crt, 0,
1429
ctypes.byref(crtverify)))
1902
1430
if crtverify.value != 0:
1903
1431
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1904
raise gnutls.errors.CertificateSecurityError(
1905
"Verify failed")
1432
raise (gnutls.errors.CertificateSecurityError
1433
("Verify failed"))
1906
1434
# New buffer for the fingerprint
1907
1435
buf = ctypes.create_string_buffer(20)
1908
1436
buf_len = ctypes.c_size_t()
1909
1437
# Get the fingerprint from the certificate into the buffer
1910
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1911
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1438
(gnutls.library.functions
1439
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1440
ctypes.byref(buf_len)))
1912
1441
# Deinit the certificate
1913
1442
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1914
1443
# Convert the buffer to a Python bytestring
1915
1444
fpr = ctypes.string_at(buf, buf_len.value)
1916
1445
# Convert the bytestring to hexadecimal notation
1917
hex_fpr = binascii.hexlify(fpr).upper()
1446
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1918
1447
return hex_fpr
1919
1448
1920
1449
1921
1450
class MultiprocessingMixIn(object):
1922
1451
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1923
1924
1452
def sub_process_main(self, request, address):
1925
1453
try:
1926
1454
self.finish_request(request, address)
1927
except Exception:
1455
except:
1928
1456
self.handle_error(request, address)
1929
1457
self.close_request(request)
1930
1458
1931
1459
def process_request(self, request, address):
1932
1460
"""Start a new process to process the request."""
1933
proc = multiprocessing.Process(target = self.sub_process_main,
1934
args = (request, address))
1935
proc.start()
1936
return proc
1461
multiprocessing.Process(target = self.sub_process_main,
1462
args = (request, address)).start()
1937
1463
1938
1464
1939
1465
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1940
1466
""" adds a pipe to the MixIn """
1941
1942
1467
def process_request(self, request, client_address):
1943
1468
"""Overrides and wraps the original process_request().
1944
1469
1946
1471
"""
1947
1472
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1948
1473
1949
proc = MultiprocessingMixIn.process_request(self, request,
1950
client_address)
1474
super(MultiprocessingMixInWithPipe,
1475
self).process_request(request, client_address)
1951
1476
self.child_pipe.close()
1952
self.add_pipe(parent_pipe, proc)
1477
self.add_pipe(parent_pipe)
1953
1478
1954
def add_pipe(self, parent_pipe, proc):
1479
def add_pipe(self, parent_pipe):
1955
1480
"""Dummy function; override as necessary"""
1956
raise NotImplementedError()
1481
raise NotImplementedError
1957
1482
1958
1483
1959
1484
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1965
1490
interface: None or a network interface name (string)
1966
1491
use_ipv6: Boolean; to use IPv6 or not
1967
1492
"""
1968
1969
1493
def __init__(self, server_address, RequestHandlerClass,
1970
interface=None,
1971
use_ipv6=True,
1972
socketfd=None):
1973
"""If socketfd is set, use that file descriptor instead of
1974
creating a new one with socket.socket().
1975
"""
1494
interface=None, use_ipv6=True):
1976
1495
self.interface = interface
1977
1496
if use_ipv6:
1978
1497
self.address_family = socket.AF_INET6
1979
if socketfd is not None:
1980
# Save the file descriptor
1981
self.socketfd = socketfd
1982
# Save the original socket.socket() function
1983
self.socket_socket = socket.socket
1984
# To implement --socket, we monkey patch socket.socket.
1985
#
1986
# (When socketserver.TCPServer is a new-style class, we
1987
# could make self.socket into a property instead of monkey
1988
# patching socket.socket.)
1989
#
1990
# Create a one-time-only replacement for socket.socket()
1991
@functools.wraps(socket.socket)
1992
def socket_wrapper(*args, **kwargs):
1993
# Restore original function so subsequent calls are
1994
# not affected.
1995
socket.socket = self.socket_socket
1996
del self.socket_socket
1997
# This time only, return a new socket object from the
1998
# saved file descriptor.
1999
return socket.fromfd(self.socketfd, *args, **kwargs)
2000
# Replace socket.socket() function with wrapper
2001
socket.socket = socket_wrapper
2002
# The socketserver.TCPServer.__init__ will call
2003
# socket.socket(), which might be our replacement,
2004
# socket_wrapper(), if socketfd was set.
2005
1498
socketserver.TCPServer.__init__(self, server_address,
2006
1499
RequestHandlerClass)
2007
2008
1500
def server_bind(self):
2009
1501
"""This overrides the normal server_bind() function
2010
1502
to bind to an interface if one was specified, and also NOT to
2016
1508
self.interface)
2017
1509
else:
2018
1510
try:
2019
self.socket.setsockopt(
2020
socket.SOL_SOCKET, SO_BINDTODEVICE,
2021
(self.interface + "\0").encode("utf-8"))
1511
self.socket.setsockopt(socket.SOL_SOCKET,
1512
SO_BINDTODEVICE,
1513
str(self.interface
1514
+ '\0'))
2022
1515
except socket.error as error:
2023
if error.errno == errno.EPERM:
2024
logger.error("No permission to bind to"
2025
" interface %s", self.interface)
2026
elif error.errno == errno.ENOPROTOOPT:
1516
if error[0] == errno.EPERM:
1517
logger.error("No permission to"
1518
" bind to interface %s",
1519
self.interface)
1520
elif error[0] == errno.ENOPROTOOPT:
2027
1521
logger.error("SO_BINDTODEVICE not available;"
2028
1522
" cannot bind to interface %s",
2029
1523
self.interface)
2030
elif error.errno == errno.ENODEV:
2031
logger.error("Interface %s does not exist,"
2032
" cannot bind", self.interface)
2033
1524
else:
2034
1525
raise
2035
1526
# Only bind(2) the socket if we really need to.
2038
1529
if self.address_family == socket.AF_INET6:
2039
1530
any_address = "::" # in6addr_any
2040
1531
else:
2041
any_address = "0.0.0.0" # INADDR_ANY
1532
any_address = socket.INADDR_ANY
2042
1533
self.server_address = (any_address,
2043
1534
self.server_address[1])
2044
1535
elif not self.server_address[1]:
2045
self.server_address = (self.server_address[0], 0)
1536
self.server_address = (self.server_address[0],
1537
0)
2046
1538
# if self.interface:
2047
1539
# self.server_address = (self.server_address[0],
2048
1540
# 0, # port
2062
1554
2063
1555
Assumes a gobject.MainLoop event loop.
2064
1556
"""
2065
2066
1557
def __init__(self, server_address, RequestHandlerClass,
2067
interface=None,
2068
use_ipv6=True,
2069
clients=None,
2070
gnutls_priority=None,
2071
use_dbus=True,
2072
socketfd=None):
1558
interface=None, use_ipv6=True, clients=None,
1559
gnutls_priority=None, use_dbus=True):
2073
1560
self.enabled = False
2074
1561
self.clients = clients
2075
1562
if self.clients is None:
2076
self.clients = {}
1563
self.clients = set()
2077
1564
self.use_dbus = use_dbus
2078
1565
self.gnutls_priority = gnutls_priority
2079
1566
IPv6_TCPServer.__init__(self, server_address,
2080
1567
RequestHandlerClass,
2081
1568
interface = interface,
2082
use_ipv6 = use_ipv6,
2083
socketfd = socketfd)
2084
1569
use_ipv6 = use_ipv6)
2085
1570
def server_activate(self):
2086
1571
if self.enabled:
2087
1572
return socketserver.TCPServer.server_activate(self)
2088
2089
1573
def enable(self):
2090
1574
self.enabled = True
2091
2092
def add_pipe(self, parent_pipe, proc):
1575
def add_pipe(self, parent_pipe):
2093
1576
# Call "handle_ipc" for both data and EOF events
2094
gobject.io_add_watch(
2095
parent_pipe.fileno(),
2096
gobject.IO_IN | gobject.IO_HUP,
2097
functools.partial(self.handle_ipc,
2098
parent_pipe = parent_pipe,
2099
proc = proc))
2100
2101
def handle_ipc(self, source, condition,
2102
parent_pipe=None,
2103
proc = None,
1577
gobject.io_add_watch(parent_pipe.fileno(),
1578
gobject.IO_IN | gobject.IO_HUP,
1579
functools.partial(self.handle_ipc,
1580
parent_pipe = parent_pipe))
1581
1582
def handle_ipc(self, source, condition, parent_pipe=None,
2104
1583
client_object=None):
2105
# error, or the other end of multiprocessing.Pipe has closed
2106
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2107
# Wait for other process to exit
2108
proc.join()
1584
condition_names = {
1585
gobject.IO_IN: "IN", # There is data to read.
1586
gobject.IO_OUT: "OUT", # Data can be written (without
1587
# blocking).
1588
gobject.IO_PRI: "PRI", # There is urgent data to read.
1589
gobject.IO_ERR: "ERR", # Error condition.
1590
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1591
# broken, usually for pipes and
1592
# sockets).
1593
}
1594
conditions_string = ' | '.join(name
1595
for cond, name in
1596
condition_names.iteritems()
1597
if cond & condition)
1598
# error or the other end of multiprocessing.Pipe has closed
1599
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2109
1600
return False
2110
1601
2111
1602
# Read a request from the child
2116
1607
fpr = request[1]
2117
1608
address = request[2]
2118
1609
2119
for c in self.clients.itervalues():
1610
for c in self.clients:
2120
1611
if c.fingerprint == fpr:
2121
1612
client = c
2122
1613
break
2125
1616
"dress: %s", fpr, address)
2126
1617
if self.use_dbus:
2127
1618
# Emit D-Bus signal
2128
mandos_dbus_service.ClientNotFound(fpr,
2129
address[0])
1619
mandos_dbus_service.ClientNotFound(fpr, address[0])
2130
1620
parent_pipe.send(False)
2131
1621
return False
2132
1622
2133
gobject.io_add_watch(
2134
parent_pipe.fileno(),
2135
gobject.IO_IN | gobject.IO_HUP,
2136
functools.partial(self.handle_ipc,
2137
parent_pipe = parent_pipe,
2138
proc = proc,
2139
client_object = client))
1623
gobject.io_add_watch(parent_pipe.fileno(),
1624
gobject.IO_IN | gobject.IO_HUP,
1625
functools.partial(self.handle_ipc,
1626
parent_pipe = parent_pipe,
1627
client_object = client))
2140
1628
parent_pipe.send(True)
2141
# remove the old hook in favor of the new above hook on
2142
# same fileno
1629
# remove the old hook in favor of the new above hook on same fileno
2143
1630
return False
2144
1631
if command == 'funcall':
2145
1632
funcname = request[1]
2146
1633
args = request[2]
2147
1634
kwargs = request[3]
2148
1635
2149
parent_pipe.send(('data', getattr(client_object,
2150
funcname)(*args,
2151
**kwargs)))
1636
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2152
1637
2153
1638
if command == 'getattr':
2154
1639
attrname = request[1]
2155
if isinstance(client_object.__getattribute__(attrname),
2156
collections.Callable):
2157
parent_pipe.send(('function', ))
1640
if callable(client_object.__getattribute__(attrname)):
1641
parent_pipe.send(('function',))
2158
1642
else:
2159
parent_pipe.send((
2160
'data', client_object.__getattribute__(attrname)))
1643
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2161
1644
2162
1645
if command == 'setattr':
2163
1646
attrname = request[1]
2167
1650
return True
2168
1651
2169
1652
2170
def rfc3339_duration_to_delta(duration):
2171
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2172
2173
>>> rfc3339_duration_to_delta("P7D")
2174
datetime.timedelta(7)
2175
>>> rfc3339_duration_to_delta("PT60S")
2176
datetime.timedelta(0, 60)
2177
>>> rfc3339_duration_to_delta("PT60M")
2178
datetime.timedelta(0, 3600)
2179
>>> rfc3339_duration_to_delta("PT24H")
2180
datetime.timedelta(1)
2181
>>> rfc3339_duration_to_delta("P1W")
2182
datetime.timedelta(7)
2183
>>> rfc3339_duration_to_delta("PT5M30S")
2184
datetime.timedelta(0, 330)
2185
>>> rfc3339_duration_to_delta("P1DT3M20S")
2186
datetime.timedelta(1, 200)
2187
"""
2188
2189
# Parsing an RFC 3339 duration with regular expressions is not
2190
# possible - there would have to be multiple places for the same
2191
# values, like seconds. The current code, while more esoteric, is
2192
# cleaner without depending on a parsing library. If Python had a
2193
# built-in library for parsing we would use it, but we'd like to
2194
# avoid excessive use of external libraries.
2195
2196
# New type for defining tokens, syntax, and semantics all-in-one
2197
Token = collections.namedtuple("Token", (
2198
"regexp", # To match token; if "value" is not None, must have
2199
# a "group" containing digits
2200
"value", # datetime.timedelta or None
2201
"followers")) # Tokens valid after this token
2202
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2203
# the "duration" ABNF definition in RFC 3339, Appendix A.
2204
token_end = Token(re.compile(r"$"), None, frozenset())
2205
token_second = Token(re.compile(r"(\d+)S"),
2206
datetime.timedelta(seconds=1),
2207
frozenset((token_end, )))
2208
token_minute = Token(re.compile(r"(\d+)M"),
2209
datetime.timedelta(minutes=1),
2210
frozenset((token_second, token_end)))
2211
token_hour = Token(re.compile(r"(\d+)H"),
2212
datetime.timedelta(hours=1),
2213
frozenset((token_minute, token_end)))
2214
token_time = Token(re.compile(r"T"),
2215
None,
2216
frozenset((token_hour, token_minute,
2217
token_second)))
2218
token_day = Token(re.compile(r"(\d+)D"),
2219
datetime.timedelta(days=1),
2220
frozenset((token_time, token_end)))
2221
token_month = Token(re.compile(r"(\d+)M"),
2222
datetime.timedelta(weeks=4),
2223
frozenset((token_day, token_end)))
2224
token_year = Token(re.compile(r"(\d+)Y"),
2225
datetime.timedelta(weeks=52),
2226
frozenset((token_month, token_end)))
2227
token_week = Token(re.compile(r"(\d+)W"),
2228
datetime.timedelta(weeks=1),
2229
frozenset((token_end, )))
2230
token_duration = Token(re.compile(r"P"), None,
2231
frozenset((token_year, token_month,
2232
token_day, token_time,
2233
token_week)))
2234
# Define starting values
2235
value = datetime.timedelta() # Value so far
2236
found_token = None
2237
followers = frozenset((token_duration, )) # Following valid tokens
2238
s = duration # String left to parse
2239
# Loop until end token is found
2240
while found_token is not token_end:
2241
# Search for any currently valid tokens
2242
for token in followers:
2243
match = token.regexp.match(s)
2244
if match is not None:
2245
# Token found
2246
if token.value is not None:
2247
# Value found, parse digits
2248
factor = int(match.group(1), 10)
2249
# Add to value so far
2250
value += factor * token.value
2251
# Strip token from string
2252
s = token.regexp.sub("", s, 1)
2253
# Go to found token
2254
found_token = token
2255
# Set valid next tokens
2256
followers = found_token.followers
2257
break
2258
else:
2259
# No currently valid tokens were found
2260
raise ValueError("Invalid RFC 3339 duration: {!r}"
2261
.format(duration))
2262
# End token found
2263
return value
2264
2265
2266
1653
def string_to_delta(interval):
2267
1654
"""Parse a string and return a datetime.timedelta
2268
1655
2279
1666
>>> string_to_delta('5m 30s')
2280
1667
datetime.timedelta(0, 330)
2281
1668
"""
2282
2283
try:
2284
return rfc3339_duration_to_delta(interval)
2285
except ValueError:
2286
pass
2287
2288
1669
timevalue = datetime.timedelta(0)
2289
1670
for s in interval.split():
2290
1671
try:
2291
suffix = s[-1]
1672
suffix = unicode(s[-1])
2292
1673
value = int(s[:-1])
2293
1674
if suffix == "d":
2294
1675
delta = datetime.timedelta(value)
2301
1682
elif suffix == "w":
2302
1683
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2303
1684
else:
2304
raise ValueError("Unknown suffix {!r}".format(suffix))
2305
except IndexError as e:
1685
raise ValueError("Unknown suffix %r" % suffix)
1686
except (ValueError, IndexError) as e:
2306
1687
raise ValueError(*(e.args))
2307
1688
timevalue += delta
2308
1689
return timevalue
2309
1690
2310
1691
1692
def if_nametoindex(interface):
1693
"""Call the C function if_nametoindex(), or equivalent
1694
1695
Note: This function cannot accept a unicode string."""
1696
global if_nametoindex
1697
try:
1698
if_nametoindex = (ctypes.cdll.LoadLibrary
1699
(ctypes.util.find_library("c"))
1700
.if_nametoindex)
1701
except (OSError, AttributeError):
1702
logger.warning("Doing if_nametoindex the hard way")
1703
def if_nametoindex(interface):
1704
"Get an interface index the hard way, i.e. using fcntl()"
1705
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1706
with contextlib.closing(socket.socket()) as s:
1707
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1708
struct.pack(str("16s16x"),
1709
interface))
1710
interface_index = struct.unpack(str("I"),
1711
ifreq[16:20])[0]
1712
return interface_index
1713
return if_nametoindex(interface)
1714
1715
2311
1716
def daemon(nochdir = False, noclose = False):
2312
1717
"""See daemon(3). Standard BSD Unix function.
2313
1718
2321
1726
sys.exit()
2322
1727
if not noclose:
2323
1728
# Close all standard open file descriptors
2324
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1729
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2325
1730
if not stat.S_ISCHR(os.fstat(null).st_mode):
2326
1731
raise OSError(errno.ENODEV,
2327
"{} not a character device"
2328
.format(os.devnull))
1732
"%s not a character device"
1733
% os.path.devnull)
2329
1734
os.dup2(null, sys.stdin.fileno())
2330
1735
os.dup2(null, sys.stdout.fileno())
2331
1736
os.dup2(null, sys.stderr.fileno())
2340
1745
2341
1746
parser = argparse.ArgumentParser()
2342
1747
parser.add_argument("-v", "--version", action="version",
2343
version = "%(prog)s {}".format(version),
1748
version = "%%(prog)s %s" % version,
2344
1749
help="show version number and exit")
2345
1750
parser.add_argument("-i", "--interface", metavar="IF",
2346
1751
help="Bind to interface IF")
2352
1757
help="Run self-test")
2353
1758
parser.add_argument("--debug", action="store_true",
2354
1759
help="Debug mode; run in foreground and log"
2355
" to terminal", default=None)
1760
" to terminal")
2356
1761
parser.add_argument("--debuglevel", metavar="LEVEL",
2357
1762
help="Debug level for stdout output")
2358
1763
parser.add_argument("--priority", help="GnuTLS"
2365
1770
" files")
2366
1771
parser.add_argument("--no-dbus", action="store_false",
2367
1772
dest="use_dbus", help="Do not provide D-Bus"
2368
" system bus interface", default=None)
1773
" system bus interface")
2369
1774
parser.add_argument("--no-ipv6", action="store_false",
2370
dest="use_ipv6", help="Do not use IPv6",
2371
default=None)
2372
parser.add_argument("--no-restore", action="store_false",
2373
dest="restore", help="Do not restore stored"
2374
" state", default=None)
2375
parser.add_argument("--socket", type=int,
2376
help="Specify a file descriptor to a network"
2377
" socket to use instead of creating one")
2378
parser.add_argument("--statedir", metavar="DIR",
2379
help="Directory to save/restore state in")
2380
parser.add_argument("--foreground", action="store_true",
2381
help="Run in foreground", default=None)
2382
parser.add_argument("--no-zeroconf", action="store_false",
2383
dest="zeroconf", help="Do not use Zeroconf",
2384
default=None)
2385
1775
dest="use_ipv6", help="Do not use IPv6")
2386
1776
options = parser.parse_args()
2387
1777
2388
1778
if options.check:
2389
1779
import doctest
2390
fail_count, test_count = doctest.testmod()
2391
sys.exit(os.EX_OK if fail_count == 0 else 1)
1780
doctest.testmod()
1781
sys.exit()
2392
1782
2393
1783
# Default values for config file for server-global settings
2394
1784
server_defaults = { "interface": "",
2396
1786
"port": "",
2397
1787
"debug": "False",
2398
1788
"priority":
2399
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2400
":+SIGN-DSA-SHA256",
1789
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2401
1790
"servicename": "Mandos",
2402
1791
"use_dbus": "True",
2403
1792
"use_ipv6": "True",
2404
1793
"debuglevel": "",
2405
"restore": "True",
2406
"socket": "",
2407
"statedir": "/var/lib/mandos",
2408
"foreground": "False",
2409
"zeroconf": "True",
2410
}
1794
}
2411
1795
2412
1796
# Parse config file for server-global settings
2413
1797
server_config = configparser.SafeConfigParser(server_defaults)
2414
1798
del server_defaults
2415
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1799
server_config.read(os.path.join(options.configdir,
1800
"mandos.conf"))
2416
1801
# Convert the SafeConfigParser object to a dict
2417
1802
server_settings = server_config.defaults()
2418
1803
# Use the appropriate methods on the non-string config options
2419
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
1804
for option in ("debug", "use_dbus", "use_ipv6"):
2420
1805
server_settings[option] = server_config.getboolean("DEFAULT",
2421
1806
option)
2422
1807
if server_settings["port"]:
2423
1808
server_settings["port"] = server_config.getint("DEFAULT",
2424
1809
"port")
2425
if server_settings["socket"]:
2426
server_settings["socket"] = server_config.getint("DEFAULT",
2427
"socket")
2428
# Later, stdin will, and stdout and stderr might, be dup'ed
2429
# over with an opened os.devnull. But we don't want this to
2430
# happen with a supplied network socket.
2431
if 0 <= server_settings["socket"] <= 2:
2432
server_settings["socket"] = os.dup(server_settings
2433
["socket"])
2434
1810
del server_config
2435
1811
2436
1812
# Override the settings from the config file with command line
2437
1813
# options, if set.
2438
1814
for option in ("interface", "address", "port", "debug",
2439
"priority", "servicename", "configdir", "use_dbus",
2440
"use_ipv6", "debuglevel", "restore", "statedir",
2441
"socket", "foreground", "zeroconf"):
1815
"priority", "servicename", "configdir",
1816
"use_dbus", "use_ipv6", "debuglevel"):
2442
1817
value = getattr(options, option)
2443
1818
if value is not None:
2444
1819
server_settings[option] = value
2445
1820
del options
2446
1821
# Force all strings to be unicode
2447
1822
for option in server_settings.keys():
2448
if isinstance(server_settings[option], bytes):
2449
server_settings[option] = (server_settings[option]
2450
.decode("utf-8"))
2451
# Force all boolean options to be boolean
2452
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2453
"foreground", "zeroconf"):
2454
server_settings[option] = bool(server_settings[option])
2455
# Debug implies foreground
2456
if server_settings["debug"]:
2457
server_settings["foreground"] = True
1823
if type(server_settings[option]) is str:
1824
server_settings[option] = unicode(server_settings[option])
2458
1825
# Now we have our good server settings in "server_settings"
2459
1826
2460
1827
##################################################################
2461
1828
2462
if (not server_settings["zeroconf"]
2463
and not (server_settings["port"]
2464
or server_settings["socket"] != "")):
2465
parser.error("Needs port or socket to work without Zeroconf")
2466
2467
1829
# For convenience
2468
1830
debug = server_settings["debug"]
2469
1831
debuglevel = server_settings["debuglevel"]
2470
1832
use_dbus = server_settings["use_dbus"]
2471
1833
use_ipv6 = server_settings["use_ipv6"]
2472
stored_state_path = os.path.join(server_settings["statedir"],
2473
stored_state_file)
2474
foreground = server_settings["foreground"]
2475
zeroconf = server_settings["zeroconf"]
2476
2477
if debug:
2478
initlogger(debug, logging.DEBUG)
2479
else:
2480
if not debuglevel:
2481
initlogger(debug)
2482
else:
2483
level = getattr(logging, debuglevel.upper())
2484
initlogger(debug, level)
2485
1834
2486
1835
if server_settings["servicename"] != "Mandos":
2487
syslogger.setFormatter(
2488
logging.Formatter('Mandos ({}) [%(process)d]:'
2489
' %(levelname)s: %(message)s'.format(
2490
server_settings["servicename"])))
1836
syslogger.setFormatter(logging.Formatter
1837
('Mandos (%s) [%%(process)d]:'
1838
' %%(levelname)s: %%(message)s'
1839
% server_settings["servicename"]))
2491
1840
2492
1841
# Parse config file with clients
2493
client_config = configparser.SafeConfigParser(Client
2494
.client_defaults)
1842
client_defaults = { "timeout": "5m",
1843
"extended_timeout": "15m",
1844
"interval": "2m",
1845
"checker": "fping -q -- %%(host)s",
1846
"host": "",
1847
"approval_delay": "0s",
1848
"approval_duration": "1s",
1849
}
1850
client_config = configparser.SafeConfigParser(client_defaults)
2495
1851
client_config.read(os.path.join(server_settings["configdir"],
2496
1852
"clients.conf"))
2497
1853
2498
1854
global mandos_dbus_service
2499
1855
mandos_dbus_service = None
2500
1856
2501
socketfd = None
2502
if server_settings["socket"] != "":
2503
socketfd = server_settings["socket"]
2504
tcp_server = MandosServer(
2505
(server_settings["address"], server_settings["port"]),
2506
ClientHandler,
2507
interface=(server_settings["interface"] or None),
2508
use_ipv6=use_ipv6,
2509
gnutls_priority=server_settings["priority"],
2510
use_dbus=use_dbus,
2511
socketfd=socketfd)
2512
if not foreground:
2513
pidfilename = "/run/mandos.pid"
2514
if not os.path.isdir("/run/."):
2515
pidfilename = "/var/run/mandos.pid"
2516
pidfile = None
1857
tcp_server = MandosServer((server_settings["address"],
1858
server_settings["port"]),
1859
ClientHandler,
1860
interface=(server_settings["interface"]
1861
or None),
1862
use_ipv6=use_ipv6,
1863
gnutls_priority=
1864
server_settings["priority"],
1865
use_dbus=use_dbus)
1866
if not debug:
1867
pidfilename = "/var/run/mandos.pid"
2517
1868
try:
2518
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2519
except IOError as e:
2520
logger.error("Could not open file %r", pidfilename,
2521
exc_info=e)
1869
pidfile = open(pidfilename, "w")
1870
except IOError:
1871
logger.error("Could not open file %r", pidfilename)
2522
1872
2523
for name in ("_mandos", "mandos", "nobody"):
1873
try:
1874
uid = pwd.getpwnam("_mandos").pw_uid
1875
gid = pwd.getpwnam("_mandos").pw_gid
1876
except KeyError:
2524
1877
try:
2525
uid = pwd.getpwnam(name).pw_uid
2526
gid = pwd.getpwnam(name).pw_gid
2527
break
1878
uid = pwd.getpwnam("mandos").pw_uid
1879
gid = pwd.getpwnam("mandos").pw_gid
2528
1880
except KeyError:
2529
continue
2530
else:
2531
uid = 65534
2532
gid = 65534
1881
try:
1882
uid = pwd.getpwnam("nobody").pw_uid
1883
gid = pwd.getpwnam("nobody").pw_gid
1884
except KeyError:
1885
uid = 65534
1886
gid = 65534
2533
1887
try:
2534
1888
os.setgid(gid)
2535
1889
os.setuid(uid)
2536
1890
except OSError as error:
2537
if error.errno != errno.EPERM:
2538
raise
1891
if error[0] != errno.EPERM:
1892
raise error
1893
1894
if not debug and not debuglevel:
1895
syslogger.setLevel(logging.WARNING)
1896
console.setLevel(logging.WARNING)
1897
if debuglevel:
1898
level = getattr(logging, debuglevel.upper())
1899
syslogger.setLevel(level)
1900
console.setLevel(level)
2539
1901
2540
1902
if debug:
2541
1903
# Enable all possible GnuTLS debugging
2548
1910
def debug_gnutls(level, string):
2549
1911
logger.debug("GnuTLS: %s", string[:-1])
2550
1912
2551
gnutls.library.functions.gnutls_global_set_log_function(
2552
debug_gnutls)
1913
(gnutls.library.functions
1914
.gnutls_global_set_log_function(debug_gnutls))
2553
1915
2554
1916
# Redirect stdin so all checkers get /dev/null
2555
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1917
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2556
1918
os.dup2(null, sys.stdin.fileno())
2557
1919
if null > 2:
2558
1920
os.close(null)
1921
else:
1922
# No console logging
1923
logger.removeHandler(console)
2559
1924
2560
1925
# Need to fork before connecting to D-Bus
2561
if not foreground:
1926
if not debug:
2562
1927
# Close all input and output, do double fork, etc.
2563
1928
daemon()
2564
1929
2565
# multiprocessing will use threads, so before we use gobject we
2566
# need to inform gobject that threads will be used.
2567
gobject.threads_init()
2568
2569
1930
global main_loop
2570
1931
# From the Avahi example code
2571
DBusGMainLoop(set_as_default=True)
1932
DBusGMainLoop(set_as_default=True )
2572
1933
main_loop = gobject.MainLoop()
2573
1934
bus = dbus.SystemBus()
2574
1935
# End of Avahi example code
2575
1936
if use_dbus:
2576
1937
try:
2577
bus_name = dbus.service.BusName("se.recompile.Mandos",
2578
bus,
2579
do_not_queue=True)
2580
old_bus_name = dbus.service.BusName(
2581
"se.bsnet.fukt.Mandos", bus,
2582
do_not_queue=True)
2583
except dbus.exceptions.DBusException as e:
2584
logger.error("Disabling D-Bus:", exc_info=e)
1938
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1939
bus, do_not_queue=True)
1940
bus_name2 = dbus.service.BusName("se.recompile.Mandos",
1941
bus, do_not_queue=True)
1942
except dbus.exceptions.NameExistsException as e:
1943
logger.error(unicode(e) + ", disabling D-Bus")
2585
1944
use_dbus = False
2586
1945
server_settings["use_dbus"] = False
2587
1946
tcp_server.use_dbus = False
2588
if zeroconf:
2589
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2590
service = AvahiServiceToSyslog(
2591
name = server_settings["servicename"],
2592
servicetype = "_mandos._tcp",
2593
protocol = protocol,
2594
bus = bus)
2595
if server_settings["interface"]:
2596
service.interface = if_nametoindex(
2597
server_settings["interface"].encode("utf-8"))
1947
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1948
service = AvahiService(name = server_settings["servicename"],
1949
servicetype = "_mandos._tcp",
1950
protocol = protocol, bus = bus)
1951
if server_settings["interface"]:
1952
service.interface = (if_nametoindex
1953
(str(server_settings["interface"])))
2598
1954
2599
1955
global multiprocessing_manager
2600
1956
multiprocessing_manager = multiprocessing.Manager()
2601
1957
2602
1958
client_class = Client
2603
1959
if use_dbus:
2604
client_class = functools.partial(ClientDBus, bus = bus)
2605
2606
client_settings = Client.config_parser(client_config)
2607
old_client_settings = {}
2608
clients_data = {}
2609
2610
# This is used to redirect stdout and stderr for checker processes
2611
global wnull
2612
wnull = open(os.devnull, "w") # A writable /dev/null
2613
# Only used if server is running in foreground but not in debug
2614
# mode
2615
if debug or not foreground:
2616
wnull.close()
2617
2618
# Get client data and settings from last running state.
2619
if server_settings["restore"]:
2620
try:
2621
with open(stored_state_path, "rb") as stored_state:
2622
clients_data, old_client_settings = pickle.load(
2623
stored_state)
2624
os.remove(stored_state_path)
2625
except IOError as e:
2626
if e.errno == errno.ENOENT:
2627
logger.warning("Could not load persistent state:"
2628
" {}".format(os.strerror(e.errno)))
2629
else:
2630
logger.critical("Could not load persistent state:",
2631
exc_info=e)
2632
raise
2633
except EOFError as e:
2634
logger.warning("Could not load persistent state: "
2635
"EOFError:",
2636
exc_info=e)
2637
2638
with PGPEngine() as pgp:
2639
for client_name, client in clients_data.items():
2640
# Skip removed clients
2641
if client_name not in client_settings:
2642
continue
2643
2644
# Decide which value to use after restoring saved state.
2645
# We have three different values: Old config file,
2646
# new config file, and saved state.
2647
# New config value takes precedence if it differs from old
2648
# config value, otherwise use saved state.
2649
for name, value in client_settings[client_name].items():
2650
try:
2651
# For each value in new config, check if it
2652
# differs from the old config value (Except for
2653
# the "secret" attribute)
2654
if (name != "secret"
2655
and (value !=
2656
old_client_settings[client_name][name])):
2657
client[name] = value
2658
except KeyError:
2659
pass
2660
2661
# Clients who has passed its expire date can still be
2662
# enabled if its last checker was successful. A Client
2663
# whose checker succeeded before we stored its state is
2664
# assumed to have successfully run all checkers during
2665
# downtime.
2666
if client["enabled"]:
2667
if datetime.datetime.utcnow() >= client["expires"]:
2668
if not client["last_checked_ok"]:
2669
logger.warning(
2670
"disabling client {} - Client never "
2671
"performed a successful checker".format(
2672
client_name))
2673
client["enabled"] = False
2674
elif client["last_checker_status"] != 0:
2675
logger.warning(
2676
"disabling client {} - Client last"
2677
" checker failed with error code"
2678
" {}".format(
2679
client_name,
2680
client["last_checker_status"]))
2681
client["enabled"] = False
2682
else:
2683
client["expires"] = (
2684
datetime.datetime.utcnow()
2685
+ client["timeout"])
2686
logger.debug("Last checker succeeded,"
2687
" keeping {} enabled".format(
2688
client_name))
1960
client_class = functools.partial(ClientDBusTransitional, bus = bus)
1961
def client_config_items(config, section):
1962
special_settings = {
1963
"approved_by_default":
1964
lambda: config.getboolean(section,
1965
"approved_by_default"),
1966
}
1967
for name, value in config.items(section):
2689
1968
try:
2690
client["secret"] = pgp.decrypt(
2691
client["encrypted_secret"],
2692
client_settings[client_name]["secret"])
2693
except PGPError:
2694
# If decryption fails, we use secret from new settings
2695
logger.debug("Failed to decrypt {} old secret".format(
2696
client_name))
2697
client["secret"] = (client_settings[client_name]
2698
["secret"])
2699
2700
# Add/remove clients based on new changes made to config
2701
for client_name in (set(old_client_settings)
2702
- set(client_settings)):
2703
del clients_data[client_name]
2704
for client_name in (set(client_settings)
2705
- set(old_client_settings)):
2706
clients_data[client_name] = client_settings[client_name]
2707
2708
# Create all client objects
2709
for client_name, client in clients_data.items():
2710
tcp_server.clients[client_name] = client_class(
2711
name = client_name,
2712
settings = client,
2713
server_settings = server_settings)
2714
1969
yield (name, special_settings[name]())
1970
except KeyError:
1971
yield (name, value)
1972
1973
tcp_server.clients.update(set(
1974
client_class(name = section,
1975
config= dict(client_config_items(
1976
client_config, section)))
1977
for section in client_config.sections()))
2715
1978
if not tcp_server.clients:
2716
1979
logger.warning("No clients defined")
2717
2718
if not foreground:
2719
if pidfile is not None:
2720
pid = os.getpid()
2721
try:
2722
with pidfile:
2723
print(pid, file=pidfile)
2724
except IOError:
2725
logger.error("Could not write to file %r with PID %d",
2726
pidfilename, pid)
2727
del pidfile
1980
1981
if not debug:
1982
try:
1983
with pidfile:
1984
pid = os.getpid()
1985
pidfile.write(str(pid) + "\n".encode("utf-8"))
1986
del pidfile
1987
except IOError:
1988
logger.error("Could not write to file %r with PID %d",
1989
pidfilename, pid)
1990
except NameError:
1991
# "pidfile" was never created
1992
pass
2728
1993
del pidfilename
1994
1995
signal.signal(signal.SIGINT, signal.SIG_IGN)
2729
1996
2730
1997
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2731
1998
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2732
1999
2733
2000
if use_dbus:
2734
2735
@alternate_dbus_interfaces(
2736
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2737
class MandosDBusService(DBusObjectWithProperties):
2001
class MandosDBusService(dbus.service.Object):
2738
2002
"""A D-Bus proxy object"""
2739
2740
2003
def __init__(self):
2741
2004
dbus.service.Object.__init__(self, bus, "/")
2742
2743
_interface = "se.recompile.Mandos"
2744
2745
@dbus_interface_annotations(_interface)
2746
def _foo(self):
2747
return {
2748
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2749
"false" }
2005
_interface = "se.bsnet.fukt.Mandos"
2750
2006
2751
2007
@dbus.service.signal(_interface, signature="o")
2752
2008
def ClientAdded(self, objpath):
2766
2022
@dbus.service.method(_interface, out_signature="ao")
2767
2023
def GetAllClients(self):
2768
2024
"D-Bus method"
2769
return dbus.Array(c.dbus_object_path for c in
2770
tcp_server.clients.itervalues())
2025
return dbus.Array(c.dbus_object_path
2026
for c in tcp_server.clients)
2771
2027
2772
2028
@dbus.service.method(_interface,
2773
2029
out_signature="a{oa{sv}}")
2774
2030
def GetAllClientsWithProperties(self):
2775
2031
"D-Bus method"
2776
2032
return dbus.Dictionary(
2777
{ c.dbus_object_path: c.GetAll("")
2778
for c in tcp_server.clients.itervalues() },
2033
((c.dbus_object_path, c.GetAll(""))
2034
for c in tcp_server.clients),
2779
2035
signature="oa{sv}")
2780
2036
2781
2037
@dbus.service.method(_interface, in_signature="o")
2782
2038
def RemoveClient(self, object_path):
2783
2039
"D-Bus method"
2784
for c in tcp_server.clients.itervalues():
2040
for c in tcp_server.clients:
2785
2041
if c.dbus_object_path == object_path:
2786
del tcp_server.clients[c.name]
2042
tcp_server.clients.remove(c)
2787
2043
c.remove_from_connection()
2788
2044
# Don't signal anything except ClientRemoved
2789
2045
c.disable(quiet=True)
2794
2050
2795
2051
del _interface
2796
2052
2797
mandos_dbus_service = MandosDBusService()
2053
class MandosDBusServiceTransitional(MandosDBusService):
2054
__metaclass__ = transitional_dbus_metaclass
2055
mandos_dbus_service = MandosDBusServiceTransitional()
2798
2056
2799
2057
def cleanup():
2800
2058
"Cleanup function; run on exit"
2801
if zeroconf:
2802
service.cleanup()
2803
2804
multiprocessing.active_children()
2805
wnull.close()
2806
if not (tcp_server.clients or client_settings):
2807
return
2808
2809
# Store client before exiting. Secrets are encrypted with key
2810
# based on what config file has. If config file is
2811
# removed/edited, old secret will thus be unrecovable.
2812
clients = {}
2813
with PGPEngine() as pgp:
2814
for client in tcp_server.clients.itervalues():
2815
key = client_settings[client.name]["secret"]
2816
client.encrypted_secret = pgp.encrypt(client.secret,
2817
key)
2818
client_dict = {}
2819
2820
# A list of attributes that can not be pickled
2821
# + secret.
2822
exclude = { "bus", "changedstate", "secret",
2823
"checker", "server_settings" }
2824
for name, typ in inspect.getmembers(dbus.service
2825
.Object):
2826
exclude.add(name)
2827
2828
client_dict["encrypted_secret"] = (client
2829
.encrypted_secret)
2830
for attr in client.client_structure:
2831
if attr not in exclude:
2832
client_dict[attr] = getattr(client, attr)
2833
2834
clients[client.name] = client_dict
2835
del client_settings[client.name]["secret"]
2836
2837
try:
2838
with tempfile.NamedTemporaryFile(
2839
mode='wb',
2840
suffix=".pickle",
2841
prefix='clients-',
2842
dir=os.path.dirname(stored_state_path),
2843
delete=False) as stored_state:
2844
pickle.dump((clients, client_settings), stored_state)
2845
tempname = stored_state.name
2846
os.rename(tempname, stored_state_path)
2847
except (IOError, OSError) as e:
2848
if not debug:
2849
try:
2850
os.remove(tempname)
2851
except NameError:
2852
pass
2853
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2854
logger.warning("Could not save persistent state: {}"
2855
.format(os.strerror(e.errno)))
2856
else:
2857
logger.warning("Could not save persistent state:",
2858
exc_info=e)
2859
raise
2860
2861
# Delete all clients, and settings from config
2059
service.cleanup()
2060
2862
2061
while tcp_server.clients:
2863
name, client = tcp_server.clients.popitem()
2062
client = tcp_server.clients.pop()
2864
2063
if use_dbus:
2865
2064
client.remove_from_connection()
2065
client.disable_hook = None
2866
2066
# Don't signal anything except ClientRemoved
2867
2067
client.disable(quiet=True)
2868
2068
if use_dbus:
2869
2069
# Emit D-Bus signal
2870
mandos_dbus_service.ClientRemoved(
2871
client.dbus_object_path, client.name)
2872
client_settings.clear()
2070
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2071
client.name)
2873
2072
2874
2073
atexit.register(cleanup)
2875
2074
2876
for client in tcp_server.clients.itervalues():
2075
for client in tcp_server.clients:
2877
2076
if use_dbus:
2878
2077
# Emit D-Bus signal
2879
2078
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2880
# Need to initiate checking of clients
2881
if client.enabled:
2882
client.init_checker()
2079
client.enable()
2883
2080
2884
2081
tcp_server.enable()
2885
2082
tcp_server.server_activate()
2886
2083
2887
2084
# Find out what port we got
2888
if zeroconf:
2889
service.port = tcp_server.socket.getsockname()[1]
2085
service.port = tcp_server.socket.getsockname()[1]
2890
2086
if use_ipv6:
2891
2087
logger.info("Now listening on address %r, port %d,"
2892
" flowinfo %d, scope_id %d",
2893
*tcp_server.socket.getsockname())
2088
" flowinfo %d, scope_id %d"
2089
% tcp_server.socket.getsockname())
2894
2090
else: # IPv4
2895
logger.info("Now listening on address %r, port %d",
2896
*tcp_server.socket.getsockname())
2091
logger.info("Now listening on address %r, port %d"
2092
% tcp_server.socket.getsockname())
2897
2093
2898
2094
#service.interface = tcp_server.socket.getsockname()[3]
2899
2095
2900
2096
try:
2901
if zeroconf:
2902
# From the Avahi example code
2903
try:
2904
service.activate()
2905
except dbus.exceptions.DBusException as error:
2906
logger.critical("D-Bus Exception", exc_info=error)
2907
cleanup()
2908
sys.exit(1)
2909
# End of Avahi example code
2097
# From the Avahi example code
2098
try:
2099
service.activate()
2100
except dbus.exceptions.DBusException as error:
2101
logger.critical("DBusException: %s", error)
2102
cleanup()
2103
sys.exit(1)
2104
# End of Avahi example code
2910
2105
2911
2106
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2912
2107
lambda *args, **kwargs:
2916
2111
logger.debug("Starting main loop")
2917
2112
main_loop.run()
2918
2113
except AvahiError as error:
2919
logger.critical("Avahi Error", exc_info=error)
2114
logger.critical("AvahiError: %s", error)
2920
2115
cleanup()
2921
2116
sys.exit(1)
2922
2117
except KeyboardInterrupt:
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0