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- Committer: Teddy Hogeborn
- Date: 2015-07-09 20:36:29 UTC
- Revision ID: teddy@recompile.se-20150709203629-439gfk6812u1azp3
Rename the "client-dhparams.pem" file to simply "dhparams.pem".
* debian/mandos-client.postinst: Rename the "client-dhparams.pem" file
to "dhparams.pem".
* initramfs-tools-hook: - '' -
* plugins.d/mandos-client.c (main): - '' -
* debian/mandos-client.postinst: Rename the "client-dhparams.pem" file
to "dhparams.pem".
* initramfs-tools-hook: - '' -
* plugins.d/mandos-client.c (main): - '' -
- files added:
- debian/mandos-client.examples
- debian/upstream
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
1
#!/usr/bin/python2.7
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 © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 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@fukt.bsnet.se>.
31
# Contact the authors at <mandos@recompile.se>.
32
32
#
33
33
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
import SocketServer as socketserver
37
from future_builtins import *
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
38
43
import socket
39
44
import argparse
40
45
import datetime
45
50
import gnutls.library.functions
46
51
import gnutls.library.constants
47
52
import gnutls.library.types
48
import ConfigParser as configparser
53
try:
54
import ConfigParser as configparser
55
except ImportError:
56
import configparser
49
57
import sys
50
58
import re
51
59
import os
60
68
import struct
61
69
import fcntl
62
70
import functools
63
import cPickle as pickle
71
try:
72
import cPickle as pickle
73
except ImportError:
74
import pickle
64
75
import multiprocessing
76
import types
77
import binascii
78
import tempfile
79
import itertools
80
import collections
81
import codecs
65
82
66
83
import dbus
67
84
import dbus.service
68
import gobject
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
69
89
import avahi
70
90
from dbus.mainloop.glib import DBusGMainLoop
71
91
import ctypes
81
101
except ImportError:
82
102
SO_BINDTODEVICE = None
83
103
84
85
version = "1.3.0"
86
87
#logger = logging.getLogger('mandos')
88
logger = logging.Logger('mandos')
89
syslogger = (logging.handlers.SysLogHandler
90
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
92
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
95
logger.addHandler(syslogger)
96
97
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
99
' %(levelname)s:'
100
' %(message)s'))
101
logger.addHandler(console)
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
102
236
103
237
class AvahiError(Exception):
104
238
def __init__(self, value, *args, **kwargs):
105
239
self.value = value
106
super(AvahiError, self).__init__(value, *args, **kwargs)
107
def __unicode__(self):
108
return unicode(repr(self.value))
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
109
243
110
244
class AvahiServiceError(AvahiError):
111
245
pass
112
246
247
113
248
class AvahiGroupError(AvahiError):
114
249
pass
115
250
122
257
Used to optionally bind to the specified interface.
123
258
name: string; Example: 'Mandos'
124
259
type: string; Example: '_mandos._tcp'.
125
See <http://www.dns-sd.org/ServiceTypes.html>
260
See <https://www.iana.org/assignments/service-names-port-numbers>
126
261
port: integer; what port to announce
127
262
TXT: list of strings; TXT record for the service
128
263
domain: string; Domain to publish on, default to .local if empty.
134
269
server: D-Bus Server
135
270
bus: dbus.SystemBus()
136
271
"""
137
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
138
servicetype = None, port = None, TXT = None,
139
domain = "", host = "", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
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):
141
284
self.interface = interface
142
285
self.name = name
143
286
self.type = servicetype
152
295
self.server = None
153
296
self.bus = bus
154
297
self.entry_group_state_changed_match = None
155
def rename(self):
298
299
def rename(self, remove=True):
156
300
"""Derived from the Avahi example code"""
157
301
if self.rename_count >= self.max_renames:
158
302
logger.critical("No suitable Zeroconf service name found"
159
303
" after %i retries, exiting.",
160
304
self.rename_count)
161
305
raise AvahiServiceError("Too many renames")
162
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
308
self.rename_count += 1
163
309
logger.info("Changing Zeroconf service name to %r ...",
164
310
self.name)
165
syslogger.setFormatter(logging.Formatter
166
('Mandos (%s) [%%(process)d]:'
167
' %%(levelname)s: %%(message)s'
168
% self.name))
169
self.remove()
311
if remove:
312
self.remove()
170
313
try:
171
314
self.add()
172
315
except dbus.exceptions.DBusException as error:
173
logger.critical("DBusException: %s", error)
174
self.cleanup()
175
os._exit(1)
176
self.rename_count += 1
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
177
325
def remove(self):
178
326
"""Derived from the Avahi example code"""
179
327
if self.entry_group_state_changed_match is not None:
181
329
self.entry_group_state_changed_match = None
182
330
if self.group is not None:
183
331
self.group.Reset()
332
184
333
def add(self):
185
334
"""Derived from the Avahi example code"""
186
335
self.remove()
191
340
avahi.DBUS_INTERFACE_ENTRY_GROUP)
192
341
self.entry_group_state_changed_match = (
193
342
self.group.connect_to_signal(
194
'StateChanged', self .entry_group_state_changed))
343
'StateChanged', self.entry_group_state_changed))
195
344
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
196
345
self.name, self.type)
197
346
self.group.AddService(
203
352
dbus.UInt16(self.port),
204
353
avahi.string_array_to_txt_array(self.TXT))
205
354
self.group.Commit()
355
206
356
def entry_group_state_changed(self, state, error):
207
357
"""Derived from the Avahi example code"""
208
358
logger.debug("Avahi entry group state change: %i", state)
214
364
self.rename()
215
365
elif state == avahi.ENTRY_GROUP_FAILURE:
216
366
logger.critical("Avahi: Error in group state changed %s",
217
unicode(error))
218
raise AvahiGroupError("State changed: %s"
219
% unicode(error))
367
str(error))
368
raise AvahiGroupError("State changed: {!s}".format(error))
369
220
370
def cleanup(self):
221
371
"""Derived from the Avahi example code"""
222
372
if self.group is not None:
223
373
try:
224
374
self.group.Free()
225
375
except (dbus.exceptions.UnknownMethodException,
226
dbus.exceptions.DBusException) as e:
376
dbus.exceptions.DBusException):
227
377
pass
228
378
self.group = None
229
379
self.remove()
380
230
381
def server_state_changed(self, state, error=None):
231
382
"""Derived from the Avahi example code"""
232
383
logger.debug("Avahi server state change: %i", state)
233
bad_states = { avahi.SERVER_INVALID:
234
"Zeroconf server invalid",
235
avahi.SERVER_REGISTERING: None,
236
avahi.SERVER_COLLISION:
237
"Zeroconf server name collision",
238
avahi.SERVER_FAILURE:
239
"Zeroconf server failure" }
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
}
240
390
if state in bad_states:
241
391
if bad_states[state] is not None:
242
392
if error is None:
251
401
logger.debug("Unknown state: %r", state)
252
402
else:
253
403
logger.debug("Unknown state: %r: %r", state, error)
404
254
405
def activate(self):
255
406
"""Derived from the Avahi example code"""
256
407
if self.server is None:
260
411
follow_name_owner_changes=True),
261
412
avahi.DBUS_INTERFACE_SERVER)
262
413
self.server.connect_to_signal("StateChanged",
263
self.server_state_changed)
414
self.server_state_changed)
264
415
self.server_state_changed(self.server.GetState())
265
416
266
417
418
class AvahiServiceToSyslog(AvahiService):
419
def rename(self, *args, **kwargs):
420
"""Add the new name to the syslog messages"""
421
ret = AvahiService.rename(self, *args, **kwargs)
422
syslogger.setFormatter(logging.Formatter(
423
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
424
.format(self.name)))
425
return ret
426
427
def call_pipe(connection, # : multiprocessing.Connection
428
func, *args, **kwargs):
429
"""This function is meant to be called by multiprocessing.Process
430
431
This function runs func(*args, **kwargs), and writes the resulting
432
return value on the provided multiprocessing.Connection.
433
"""
434
connection.send(func(*args, **kwargs))
435
connection.close()
436
267
437
class Client(object):
268
438
"""A representation of a client host served by this server.
269
439
270
440
Attributes:
271
_approved: bool(); 'None' if not yet approved/disapproved
441
approved: bool(); 'None' if not yet approved/disapproved
272
442
approval_delay: datetime.timedelta(); Time to wait for approval
273
443
approval_duration: datetime.timedelta(); Duration of one approval
274
444
checker: subprocess.Popen(); a running checker process used
281
451
instance %(name)s can be used in the command.
282
452
checker_initiator_tag: a gobject event source tag, or None
283
453
created: datetime.datetime(); (UTC) object creation
454
client_structure: Object describing what attributes a client has
455
and is used for storing the client at exit
284
456
current_checker_command: string; current running checker_command
285
disable_hook: If set, called by disable() as disable_hook(self)
286
457
disable_initiator_tag: a gobject event source tag, or None
287
458
enabled: bool()
288
459
fingerprint: string (40 or 32 hexadecimal digits); used to
291
462
interval: datetime.timedelta(); How often to start a new checker
292
463
last_approval_request: datetime.datetime(); (UTC) or None
293
464
last_checked_ok: datetime.datetime(); (UTC) or None
294
last_enabled: datetime.datetime(); (UTC)
465
last_checker_status: integer between 0 and 255 reflecting exit
466
status of last checker. -1 reflects crashed
467
checker, -2 means no checker completed yet.
468
last_checker_signal: The signal which killed the last checker, if
469
last_checker_status is -1
470
last_enabled: datetime.datetime(); (UTC) or None
295
471
name: string; from the config file, used in log messages and
296
472
D-Bus identifiers
297
473
secret: bytestring; sent verbatim (over TLS) to client
298
474
timeout: datetime.timedelta(); How long from last_checked_ok
299
475
until this client is disabled
476
extended_timeout: extra long timeout when secret has been sent
300
477
runtime_expansions: Allowed attributes for runtime expansion.
478
expires: datetime.datetime(); time (UTC) when a client will be
479
disabled, or None
480
server_settings: The server_settings dict from main()
301
481
"""
302
482
303
483
runtime_expansions = ("approval_delay", "approval_duration",
304
"created", "enabled", "fingerprint",
305
"host", "interval", "last_checked_ok",
484
"created", "enabled", "expires",
485
"fingerprint", "host", "interval",
486
"last_approval_request", "last_checked_ok",
306
487
"last_enabled", "name", "timeout")
488
client_defaults = {
489
"timeout": "PT5M",
490
"extended_timeout": "PT15M",
491
"interval": "PT2M",
492
"checker": "fping -q -- %%(host)s",
493
"host": "",
494
"approval_delay": "PT0S",
495
"approval_duration": "PT1S",
496
"approved_by_default": "True",
497
"enabled": "True",
498
}
307
499
308
500
@staticmethod
309
def _timedelta_to_milliseconds(td):
310
"Convert a datetime.timedelta() to milliseconds"
311
return ((td.days * 24 * 60 * 60 * 1000)
312
+ (td.seconds * 1000)
313
+ (td.microseconds // 1000))
314
315
def timeout_milliseconds(self):
316
"Return the 'timeout' attribute in milliseconds"
317
return self._timedelta_to_milliseconds(self.timeout)
318
319
def interval_milliseconds(self):
320
"Return the 'interval' attribute in milliseconds"
321
return self._timedelta_to_milliseconds(self.interval)
322
323
def approval_delay_milliseconds(self):
324
return self._timedelta_to_milliseconds(self.approval_delay)
325
326
def __init__(self, name = None, disable_hook=None, config=None):
327
"""Note: the 'checker' key in 'config' sets the
328
'checker_command' attribute and *not* the 'checker'
329
attribute."""
501
def config_parser(config):
502
"""Construct a new dict of client settings of this form:
503
{ client_name: {setting_name: value, ...}, ...}
504
with exceptions for any special settings as defined above.
505
NOTE: Must be a pure function. Must return the same result
506
value given the same arguments.
507
"""
508
settings = {}
509
for client_name in config.sections():
510
section = dict(config.items(client_name))
511
client = settings[client_name] = {}
512
513
client["host"] = section["host"]
514
# Reformat values from string types to Python types
515
client["approved_by_default"] = config.getboolean(
516
client_name, "approved_by_default")
517
client["enabled"] = config.getboolean(client_name,
518
"enabled")
519
520
# Uppercase and remove spaces from fingerprint for later
521
# comparison purposes with return value from the
522
# fingerprint() function
523
client["fingerprint"] = (section["fingerprint"].upper()
524
.replace(" ", ""))
525
if "secret" in section:
526
client["secret"] = section["secret"].decode("base64")
527
elif "secfile" in section:
528
with open(os.path.expanduser(os.path.expandvars
529
(section["secfile"])),
530
"rb") as secfile:
531
client["secret"] = secfile.read()
532
else:
533
raise TypeError("No secret or secfile for section {}"
534
.format(section))
535
client["timeout"] = string_to_delta(section["timeout"])
536
client["extended_timeout"] = string_to_delta(
537
section["extended_timeout"])
538
client["interval"] = string_to_delta(section["interval"])
539
client["approval_delay"] = string_to_delta(
540
section["approval_delay"])
541
client["approval_duration"] = string_to_delta(
542
section["approval_duration"])
543
client["checker_command"] = section["checker"]
544
client["last_approval_request"] = None
545
client["last_checked_ok"] = None
546
client["last_checker_status"] = -2
547
548
return settings
549
550
def __init__(self, settings, name = None, server_settings=None):
330
551
self.name = name
331
if config is None:
332
config = {}
552
if server_settings is None:
553
server_settings = {}
554
self.server_settings = server_settings
555
# adding all client settings
556
for setting, value in settings.items():
557
setattr(self, setting, value)
558
559
if self.enabled:
560
if not hasattr(self, "last_enabled"):
561
self.last_enabled = datetime.datetime.utcnow()
562
if not hasattr(self, "expires"):
563
self.expires = (datetime.datetime.utcnow()
564
+ self.timeout)
565
else:
566
self.last_enabled = None
567
self.expires = None
568
333
569
logger.debug("Creating client %r", self.name)
334
# Uppercase and remove spaces from fingerprint for later
335
# comparison purposes with return value from the fingerprint()
336
# function
337
self.fingerprint = (config["fingerprint"].upper()
338
.replace(" ", ""))
339
570
logger.debug(" Fingerprint: %s", self.fingerprint)
340
if "secret" in config:
341
self.secret = config["secret"].decode("base64")
342
elif "secfile" in config:
343
with open(os.path.expanduser(os.path.expandvars
344
(config["secfile"])),
345
"rb") as secfile:
346
self.secret = secfile.read()
347
else:
348
raise TypeError("No secret or secfile for client %s"
349
% self.name)
350
self.host = config.get("host", "")
351
self.created = datetime.datetime.utcnow()
352
self.enabled = False
353
self.last_approval_request = None
354
self.last_enabled = None
355
self.last_checked_ok = None
356
self.timeout = string_to_delta(config["timeout"])
357
self.interval = string_to_delta(config["interval"])
358
self.disable_hook = disable_hook
571
self.created = settings.get("created",
572
datetime.datetime.utcnow())
573
574
# attributes specific for this server instance
359
575
self.checker = None
360
576
self.checker_initiator_tag = None
361
577
self.disable_initiator_tag = None
362
578
self.checker_callback_tag = None
363
self.checker_command = config["checker"]
364
579
self.current_checker_command = None
365
self.last_connect = None
366
self._approved = None
367
self.approved_by_default = config.get("approved_by_default",
368
True)
580
self.approved = None
369
581
self.approvals_pending = 0
370
self.approval_delay = string_to_delta(
371
config["approval_delay"])
372
self.approval_duration = string_to_delta(
373
config["approval_duration"])
374
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
582
self.changedstate = multiprocessing_manager.Condition(
583
multiprocessing_manager.Lock())
584
self.client_structure = [attr
585
for attr in self.__dict__.iterkeys()
586
if not attr.startswith("_")]
587
self.client_structure.append("client_structure")
588
589
for name, t in inspect.getmembers(
590
type(self), lambda obj: isinstance(obj, property)):
591
if not name.startswith("_"):
592
self.client_structure.append(name)
375
593
594
# Send notice to process children that client state has changed
376
595
def send_changedstate(self):
377
self.changedstate.acquire()
378
self.changedstate.notify_all()
379
self.changedstate.release()
380
596
with self.changedstate:
597
self.changedstate.notify_all()
598
381
599
def enable(self):
382
600
"""Start this client's checker and timeout hooks"""
383
601
if getattr(self, "enabled", False):
384
602
# Already enabled
385
603
return
386
self.send_changedstate()
604
self.expires = datetime.datetime.utcnow() + self.timeout
605
self.enabled = True
387
606
self.last_enabled = datetime.datetime.utcnow()
388
# Schedule a new checker to be started an 'interval' from now,
389
# and every interval from then on.
390
self.checker_initiator_tag = (gobject.timeout_add
391
(self.interval_milliseconds(),
392
self.start_checker))
393
# Schedule a disable() when 'timeout' has passed
394
self.disable_initiator_tag = (gobject.timeout_add
395
(self.timeout_milliseconds(),
396
self.disable))
397
self.enabled = True
398
# Also start a new checker *right now*.
399
self.start_checker()
607
self.init_checker()
608
self.send_changedstate()
400
609
401
610
def disable(self, quiet=True):
402
611
"""Disable this client."""
403
612
if not getattr(self, "enabled", False):
404
613
return False
405
614
if not quiet:
406
self.send_changedstate()
407
if not quiet:
408
615
logger.info("Disabling client %s", self.name)
409
if getattr(self, "disable_initiator_tag", False):
616
if getattr(self, "disable_initiator_tag", None) is not None:
410
617
gobject.source_remove(self.disable_initiator_tag)
411
618
self.disable_initiator_tag = None
412
if getattr(self, "checker_initiator_tag", False):
619
self.expires = None
620
if getattr(self, "checker_initiator_tag", None) is not None:
413
621
gobject.source_remove(self.checker_initiator_tag)
414
622
self.checker_initiator_tag = None
415
623
self.stop_checker()
416
if self.disable_hook:
417
self.disable_hook(self)
418
624
self.enabled = False
625
if not quiet:
626
self.send_changedstate()
419
627
# Do not run this again if called by a gobject.timeout_add
420
628
return False
421
629
422
630
def __del__(self):
423
self.disable_hook = None
424
631
self.disable()
425
632
426
def checker_callback(self, pid, condition, command):
633
def init_checker(self):
634
# Schedule a new checker to be started an 'interval' from now,
635
# and every interval from then on.
636
if self.checker_initiator_tag is not None:
637
gobject.source_remove(self.checker_initiator_tag)
638
self.checker_initiator_tag = gobject.timeout_add(
639
int(self.interval.total_seconds() * 1000),
640
self.start_checker)
641
# Schedule a disable() when 'timeout' has passed
642
if self.disable_initiator_tag is not None:
643
gobject.source_remove(self.disable_initiator_tag)
644
self.disable_initiator_tag = gobject.timeout_add(
645
int(self.timeout.total_seconds() * 1000), self.disable)
646
# Also start a new checker *right now*.
647
self.start_checker()
648
649
def checker_callback(self, source, condition, connection,
650
command):
427
651
"""The checker has completed, so take appropriate actions."""
428
652
self.checker_callback_tag = None
429
653
self.checker = None
430
if os.WIFEXITED(condition):
431
exitstatus = os.WEXITSTATUS(condition)
432
if exitstatus == 0:
654
# Read return code from connection (see call_pipe)
655
returncode = connection.recv()
656
connection.close()
657
658
if returncode >= 0:
659
self.last_checker_status = returncode
660
self.last_checker_signal = None
661
if self.last_checker_status == 0:
433
662
logger.info("Checker for %(name)s succeeded",
434
663
vars(self))
435
664
self.checked_ok()
436
665
else:
437
logger.info("Checker for %(name)s failed",
438
vars(self))
666
logger.info("Checker for %(name)s failed", vars(self))
439
667
else:
668
self.last_checker_status = -1
669
self.last_checker_signal = -returncode
440
670
logger.warning("Checker for %(name)s crashed?",
441
671
vars(self))
672
return False
442
673
443
674
def checked_ok(self):
444
"""Bump up the timeout for this client.
445
446
This should only be called when the client has been seen,
447
alive and well.
448
"""
675
"""Assert that the client has been seen, alive and well."""
449
676
self.last_checked_ok = datetime.datetime.utcnow()
450
gobject.source_remove(self.disable_initiator_tag)
451
self.disable_initiator_tag = (gobject.timeout_add
452
(self.timeout_milliseconds(),
453
self.disable))
677
self.last_checker_status = 0
678
self.last_checker_signal = None
679
self.bump_timeout()
680
681
def bump_timeout(self, timeout=None):
682
"""Bump up the timeout for this client."""
683
if timeout is None:
684
timeout = self.timeout
685
if self.disable_initiator_tag is not None:
686
gobject.source_remove(self.disable_initiator_tag)
687
self.disable_initiator_tag = None
688
if getattr(self, "enabled", False):
689
self.disable_initiator_tag = gobject.timeout_add(
690
int(timeout.total_seconds() * 1000), self.disable)
691
self.expires = datetime.datetime.utcnow() + timeout
454
692
455
693
def need_approval(self):
456
694
self.last_approval_request = datetime.datetime.utcnow()
461
699
If a checker already exists, leave it running and do
462
700
nothing."""
463
701
# The reason for not killing a running checker is that if we
464
# did that, then if a checker (for some reason) started
465
# running slowly and taking more than 'interval' time, the
466
# client would inevitably timeout, since no checker would get
467
# a chance to run to completion. If we instead leave running
702
# did that, and if a checker (for some reason) started running
703
# slowly and taking more than 'interval' time, then the client
704
# would inevitably timeout, since no checker would get a
705
# chance to run to completion. If we instead leave running
468
706
# checkers alone, the checker would have to take more time
469
707
# than 'timeout' for the client to be disabled, which is as it
470
708
# should be.
471
709
472
# If a checker exists, make sure it is not a zombie
473
try:
474
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
475
except (AttributeError, OSError) as error:
476
if (isinstance(error, OSError)
477
and error.errno != errno.ECHILD):
478
raise error
479
else:
480
if pid:
481
logger.warning("Checker was a zombie")
482
gobject.source_remove(self.checker_callback_tag)
483
self.checker_callback(pid, status,
484
self.current_checker_command)
710
if self.checker is not None and not self.checker.is_alive():
711
logger.warning("Checker was not alive; joining")
712
self.checker.join()
713
self.checker = None
485
714
# Start a new checker if needed
486
715
if self.checker is None:
716
# Escape attributes for the shell
717
escaped_attrs = {
718
attr: re.escape(str(getattr(self, attr)))
719
for attr in self.runtime_expansions }
487
720
try:
488
# In case checker_command has exactly one % operator
489
command = self.checker_command % self.host
490
except TypeError:
491
# Escape attributes for the shell
492
escaped_attrs = dict(
493
(attr,
494
re.escape(unicode(str(getattr(self, attr, "")),
495
errors=
496
'replace')))
497
for attr in
498
self.runtime_expansions)
499
500
try:
501
command = self.checker_command % escaped_attrs
502
except TypeError as error:
503
logger.error('Could not format string "%s":'
504
' %s', self.checker_command, error)
505
return True # Try again later
721
command = self.checker_command % escaped_attrs
722
except TypeError as error:
723
logger.error('Could not format string "%s"',
724
self.checker_command,
725
exc_info=error)
726
return True # Try again later
506
727
self.current_checker_command = command
507
try:
508
logger.info("Starting checker %r for %s",
509
command, self.name)
510
# We don't need to redirect stdout and stderr, since
511
# in normal mode, that is already done by daemon(),
512
# and in debug mode we don't want to. (Stdin is
513
# always replaced by /dev/null.)
514
self.checker = subprocess.Popen(command,
515
close_fds=True,
516
shell=True, cwd="/")
517
self.checker_callback_tag = (gobject.child_watch_add
518
(self.checker.pid,
519
self.checker_callback,
520
data=command))
521
# The checker may have completed before the gobject
522
# watch was added. Check for this.
523
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
524
if pid:
525
gobject.source_remove(self.checker_callback_tag)
526
self.checker_callback(pid, status, command)
527
except OSError as error:
528
logger.error("Failed to start subprocess: %s",
529
error)
728
logger.info("Starting checker %r for %s", command,
729
self.name)
730
# We don't need to redirect stdout and stderr, since
731
# in normal mode, that is already done by daemon(),
732
# and in debug mode we don't want to. (Stdin is
733
# always replaced by /dev/null.)
734
# The exception is when not debugging but nevertheless
735
# running in the foreground; use the previously
736
# created wnull.
737
popen_args = { "close_fds": True,
738
"shell": True,
739
"cwd": "/" }
740
if (not self.server_settings["debug"]
741
and self.server_settings["foreground"]):
742
popen_args.update({"stdout": wnull,
743
"stderr": wnull })
744
pipe = multiprocessing.Pipe(duplex = False)
745
self.checker = multiprocessing.Process(
746
target = call_pipe,
747
args = (pipe[1], subprocess.call, command),
748
kwargs = popen_args)
749
self.checker.start()
750
self.checker_callback_tag = gobject.io_add_watch(
751
pipe[0].fileno(), gobject.IO_IN,
752
self.checker_callback, pipe[0], command)
530
753
# Re-run this periodically if run by gobject.timeout_add
531
754
return True
532
755
538
761
if getattr(self, "checker", None) is None:
539
762
return
540
763
logger.debug("Stopping checker for %(name)s", vars(self))
541
try:
542
os.kill(self.checker.pid, signal.SIGTERM)
543
#time.sleep(0.5)
544
#if self.checker.poll() is None:
545
# os.kill(self.checker.pid, signal.SIGKILL)
546
except OSError as error:
547
if error.errno != errno.ESRCH: # No such process
548
raise
764
self.checker.terminate()
549
765
self.checker = None
550
766
551
def dbus_service_property(dbus_interface, signature="v",
552
access="readwrite", byte_arrays=False):
767
768
def dbus_service_property(dbus_interface,
769
signature="v",
770
access="readwrite",
771
byte_arrays=False):
553
772
"""Decorators for marking methods of a DBusObjectWithProperties to
554
773
become properties on the D-Bus.
555
774
564
783
# "Set" method, so we fail early here:
565
784
if byte_arrays and signature != "ay":
566
785
raise ValueError("Byte arrays not supported for non-'ay'"
567
" signature %r" % signature)
786
" signature {!r}".format(signature))
787
568
788
def decorator(func):
569
789
func._dbus_is_property = True
570
790
func._dbus_interface = dbus_interface
575
795
func._dbus_name = func._dbus_name[:-14]
576
796
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
577
797
return func
798
799
return decorator
800
801
802
def dbus_interface_annotations(dbus_interface):
803
"""Decorator for marking functions returning interface annotations
804
805
Usage:
806
807
@dbus_interface_annotations("org.example.Interface")
808
def _foo(self): # Function name does not matter
809
return {"org.freedesktop.DBus.Deprecated": "true",
810
"org.freedesktop.DBus.Property.EmitsChangedSignal":
811
"false"}
812
"""
813
814
def decorator(func):
815
func._dbus_is_interface = True
816
func._dbus_interface = dbus_interface
817
func._dbus_name = dbus_interface
818
return func
819
820
return decorator
821
822
823
def dbus_annotations(annotations):
824
"""Decorator to annotate D-Bus methods, signals or properties
825
Usage:
826
827
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
828
"org.freedesktop.DBus.Property."
829
"EmitsChangedSignal": "false"})
830
@dbus_service_property("org.example.Interface", signature="b",
831
access="r")
832
def Property_dbus_property(self):
833
return dbus.Boolean(False)
834
"""
835
836
def decorator(func):
837
func._dbus_annotations = annotations
838
return func
839
578
840
return decorator
579
841
580
842
581
843
class DBusPropertyException(dbus.exceptions.DBusException):
582
844
"""A base class for D-Bus property-related exceptions
583
845
"""
584
def __unicode__(self):
585
return unicode(str(self))
846
pass
586
847
587
848
588
849
class DBusPropertyAccessException(DBusPropertyException):
599
860
600
861
class DBusObjectWithProperties(dbus.service.Object):
601
862
"""A D-Bus object with properties.
602
863
603
864
Classes inheriting from this can use the dbus_service_property
604
865
decorator to expose methods as D-Bus properties. It exposes the
605
866
standard Get(), Set(), and GetAll() methods on the D-Bus.
606
867
"""
607
868
608
869
@staticmethod
609
def _is_dbus_property(obj):
610
return getattr(obj, "_dbus_is_property", False)
870
def _is_dbus_thing(thing):
871
"""Returns a function testing if an attribute is a D-Bus thing
872
873
If called like _is_dbus_thing("method") it returns a function
874
suitable for use as predicate to inspect.getmembers().
875
"""
876
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
877
False)
611
878
612
def _get_all_dbus_properties(self):
879
def _get_all_dbus_things(self, thing):
613
880
"""Returns a generator of (name, attribute) pairs
614
881
"""
615
return ((prop._dbus_name, prop)
616
for name, prop in
617
inspect.getmembers(self, self._is_dbus_property))
882
return ((getattr(athing.__get__(self), "_dbus_name", name),
883
athing.__get__(self))
884
for cls in self.__class__.__mro__
885
for name, athing in
886
inspect.getmembers(cls, self._is_dbus_thing(thing)))
618
887
619
888
def _get_dbus_property(self, interface_name, property_name):
620
889
"""Returns a bound method if one exists which is a D-Bus
621
890
property with the specified name and interface.
622
891
"""
623
for name in (property_name,
624
property_name + "_dbus_property"):
625
prop = getattr(self, name, None)
626
if (prop is None
627
or not self._is_dbus_property(prop)
628
or prop._dbus_name != property_name
629
or (interface_name and prop._dbus_interface
630
and interface_name != prop._dbus_interface)):
631
continue
632
return prop
892
for cls in self.__class__.__mro__:
893
for name, value in inspect.getmembers(
894
cls, self._is_dbus_thing("property")):
895
if (value._dbus_name == property_name
896
and value._dbus_interface == interface_name):
897
return value.__get__(self)
898
633
899
# No such property
634
raise DBusPropertyNotFound(self.dbus_object_path + ":"
635
+ interface_name + "."
636
+ property_name)
900
raise DBusPropertyNotFound("{}:{}.{}".format(
901
self.dbus_object_path, interface_name, property_name))
637
902
638
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
903
@dbus.service.method(dbus.PROPERTIES_IFACE,
904
in_signature="ss",
639
905
out_signature="v")
640
906
def Get(self, interface_name, property_name):
641
907
"""Standard D-Bus property Get() method, see D-Bus standard.
659
925
# The byte_arrays option is not supported yet on
660
926
# signatures other than "ay".
661
927
if prop._dbus_signature != "ay":
662
raise ValueError
663
value = dbus.ByteArray(''.join(unichr(byte)
664
for byte in value))
928
raise ValueError("Byte arrays not supported for non-"
929
"'ay' signature {!r}"
930
.format(prop._dbus_signature))
931
value = dbus.ByteArray(b''.join(chr(byte)
932
for byte in value))
665
933
prop(value)
666
934
667
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
935
@dbus.service.method(dbus.PROPERTIES_IFACE,
936
in_signature="s",
668
937
out_signature="a{sv}")
669
938
def GetAll(self, interface_name):
670
939
"""Standard D-Bus property GetAll() method, see D-Bus
671
940
standard.
672
941
673
942
Note: Will not include properties with access="write".
674
943
"""
675
all = {}
676
for name, prop in self._get_all_dbus_properties():
944
properties = {}
945
for name, prop in self._get_all_dbus_things("property"):
677
946
if (interface_name
678
947
and interface_name != prop._dbus_interface):
679
948
# Interface non-empty but did not match
683
952
continue
684
953
value = prop()
685
954
if not hasattr(value, "variant_level"):
686
all[name] = value
955
properties[name] = value
687
956
continue
688
all[name] = type(value)(value, variant_level=
689
value.variant_level+1)
690
return dbus.Dictionary(all, signature="sv")
957
properties[name] = type(value)(
958
value, variant_level = value.variant_level + 1)
959
return dbus.Dictionary(properties, signature="sv")
960
961
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
962
def PropertiesChanged(self, interface_name, changed_properties,
963
invalidated_properties):
964
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
965
standard.
966
"""
967
pass
691
968
692
969
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
693
970
out_signature="s",
694
971
path_keyword='object_path',
695
972
connection_keyword='connection')
696
973
def Introspect(self, object_path, connection):
697
"""Standard D-Bus method, overloaded to insert property tags.
974
"""Overloading of standard D-Bus method.
975
976
Inserts property tags and interface annotation tags.
698
977
"""
699
978
xmlstring = dbus.service.Object.Introspect(self, object_path,
700
979
connection)
701
980
try:
702
981
document = xml.dom.minidom.parseString(xmlstring)
982
703
983
def make_tag(document, name, prop):
704
984
e = document.createElement("property")
705
985
e.setAttribute("name", name)
706
986
e.setAttribute("type", prop._dbus_signature)
707
987
e.setAttribute("access", prop._dbus_access)
708
988
return e
989
709
990
for if_tag in document.getElementsByTagName("interface"):
991
# Add property tags
710
992
for tag in (make_tag(document, name, prop)
711
993
for name, prop
712
in self._get_all_dbus_properties()
994
in self._get_all_dbus_things("property")
713
995
if prop._dbus_interface
714
996
== if_tag.getAttribute("name")):
715
997
if_tag.appendChild(tag)
998
# Add annotation tags
999
for typ in ("method", "signal", "property"):
1000
for tag in if_tag.getElementsByTagName(typ):
1001
annots = dict()
1002
for name, prop in (self.
1003
_get_all_dbus_things(typ)):
1004
if (name == tag.getAttribute("name")
1005
and prop._dbus_interface
1006
== if_tag.getAttribute("name")):
1007
annots.update(getattr(
1008
prop, "_dbus_annotations", {}))
1009
for name, value in annots.items():
1010
ann_tag = document.createElement(
1011
"annotation")
1012
ann_tag.setAttribute("name", name)
1013
ann_tag.setAttribute("value", value)
1014
tag.appendChild(ann_tag)
1015
# Add interface annotation tags
1016
for annotation, value in dict(
1017
itertools.chain.from_iterable(
1018
annotations().items()
1019
for name, annotations
1020
in self._get_all_dbus_things("interface")
1021
if name == if_tag.getAttribute("name")
1022
)).items():
1023
ann_tag = document.createElement("annotation")
1024
ann_tag.setAttribute("name", annotation)
1025
ann_tag.setAttribute("value", value)
1026
if_tag.appendChild(ann_tag)
716
1027
# Add the names to the return values for the
717
1028
# "org.freedesktop.DBus.Properties" methods
718
1029
if (if_tag.getAttribute("name")
733
1044
except (AttributeError, xml.dom.DOMException,
734
1045
xml.parsers.expat.ExpatError) as error:
735
1046
logger.error("Failed to override Introspection method",
736
error)
1047
exc_info=error)
737
1048
return xmlstring
738
1049
739
1050
1051
def datetime_to_dbus(dt, variant_level=0):
1052
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1053
if dt is None:
1054
return dbus.String("", variant_level = variant_level)
1055
return dbus.String(dt.isoformat(), variant_level=variant_level)
1056
1057
1058
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1059
"""A class decorator; applied to a subclass of
1060
dbus.service.Object, it will add alternate D-Bus attributes with
1061
interface names according to the "alt_interface_names" mapping.
1062
Usage:
1063
1064
@alternate_dbus_interfaces({"org.example.Interface":
1065
"net.example.AlternateInterface"})
1066
class SampleDBusObject(dbus.service.Object):
1067
@dbus.service.method("org.example.Interface")
1068
def SampleDBusMethod():
1069
pass
1070
1071
The above "SampleDBusMethod" on "SampleDBusObject" will be
1072
reachable via two interfaces: "org.example.Interface" and
1073
"net.example.AlternateInterface", the latter of which will have
1074
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1075
"true", unless "deprecate" is passed with a False value.
1076
1077
This works for methods and signals, and also for D-Bus properties
1078
(from DBusObjectWithProperties) and interfaces (from the
1079
dbus_interface_annotations decorator).
1080
"""
1081
1082
def wrapper(cls):
1083
for orig_interface_name, alt_interface_name in (
1084
alt_interface_names.items()):
1085
attr = {}
1086
interface_names = set()
1087
# Go though all attributes of the class
1088
for attrname, attribute in inspect.getmembers(cls):
1089
# Ignore non-D-Bus attributes, and D-Bus attributes
1090
# with the wrong interface name
1091
if (not hasattr(attribute, "_dbus_interface")
1092
or not attribute._dbus_interface.startswith(
1093
orig_interface_name)):
1094
continue
1095
# Create an alternate D-Bus interface name based on
1096
# the current name
1097
alt_interface = attribute._dbus_interface.replace(
1098
orig_interface_name, alt_interface_name)
1099
interface_names.add(alt_interface)
1100
# Is this a D-Bus signal?
1101
if getattr(attribute, "_dbus_is_signal", False):
1102
if sys.version_info.major == 2:
1103
# Extract the original non-method undecorated
1104
# function by black magic
1105
nonmethod_func = (dict(
1106
zip(attribute.func_code.co_freevars,
1107
attribute.__closure__))
1108
["func"].cell_contents)
1109
else:
1110
nonmethod_func = attribute
1111
# Create a new, but exactly alike, function
1112
# object, and decorate it to be a new D-Bus signal
1113
# with the alternate D-Bus interface name
1114
if sys.version_info.major == 2:
1115
new_function = types.FunctionType(
1116
nonmethod_func.func_code,
1117
nonmethod_func.func_globals,
1118
nonmethod_func.func_name,
1119
nonmethod_func.func_defaults,
1120
nonmethod_func.func_closure)
1121
else:
1122
new_function = types.FunctionType(
1123
nonmethod_func.__code__,
1124
nonmethod_func.__globals__,
1125
nonmethod_func.__name__,
1126
nonmethod_func.__defaults__,
1127
nonmethod_func.__closure__)
1128
new_function = (dbus.service.signal(
1129
alt_interface,
1130
attribute._dbus_signature)(new_function))
1131
# Copy annotations, if any
1132
try:
1133
new_function._dbus_annotations = dict(
1134
attribute._dbus_annotations)
1135
except AttributeError:
1136
pass
1137
# Define a creator of a function to call both the
1138
# original and alternate functions, so both the
1139
# original and alternate signals gets sent when
1140
# the function is called
1141
def fixscope(func1, func2):
1142
"""This function is a scope container to pass
1143
func1 and func2 to the "call_both" function
1144
outside of its arguments"""
1145
1146
def call_both(*args, **kwargs):
1147
"""This function will emit two D-Bus
1148
signals by calling func1 and func2"""
1149
func1(*args, **kwargs)
1150
func2(*args, **kwargs)
1151
1152
return call_both
1153
# Create the "call_both" function and add it to
1154
# the class
1155
attr[attrname] = fixscope(attribute, new_function)
1156
# Is this a D-Bus method?
1157
elif getattr(attribute, "_dbus_is_method", False):
1158
# Create a new, but exactly alike, function
1159
# object. Decorate it to be a new D-Bus method
1160
# with the alternate D-Bus interface name. Add it
1161
# to the class.
1162
attr[attrname] = (
1163
dbus.service.method(
1164
alt_interface,
1165
attribute._dbus_in_signature,
1166
attribute._dbus_out_signature)
1167
(types.FunctionType(attribute.func_code,
1168
attribute.func_globals,
1169
attribute.func_name,
1170
attribute.func_defaults,
1171
attribute.func_closure)))
1172
# Copy annotations, if any
1173
try:
1174
attr[attrname]._dbus_annotations = dict(
1175
attribute._dbus_annotations)
1176
except AttributeError:
1177
pass
1178
# Is this a D-Bus property?
1179
elif getattr(attribute, "_dbus_is_property", False):
1180
# Create a new, but exactly alike, function
1181
# object, and decorate it to be a new D-Bus
1182
# property with the alternate D-Bus interface
1183
# name. Add it to the class.
1184
attr[attrname] = (dbus_service_property(
1185
alt_interface, attribute._dbus_signature,
1186
attribute._dbus_access,
1187
attribute._dbus_get_args_options
1188
["byte_arrays"])
1189
(types.FunctionType(
1190
attribute.func_code,
1191
attribute.func_globals,
1192
attribute.func_name,
1193
attribute.func_defaults,
1194
attribute.func_closure)))
1195
# Copy annotations, if any
1196
try:
1197
attr[attrname]._dbus_annotations = dict(
1198
attribute._dbus_annotations)
1199
except AttributeError:
1200
pass
1201
# Is this a D-Bus interface?
1202
elif getattr(attribute, "_dbus_is_interface", False):
1203
# Create a new, but exactly alike, function
1204
# object. Decorate it to be a new D-Bus interface
1205
# with the alternate D-Bus interface name. Add it
1206
# to the class.
1207
attr[attrname] = (
1208
dbus_interface_annotations(alt_interface)
1209
(types.FunctionType(attribute.func_code,
1210
attribute.func_globals,
1211
attribute.func_name,
1212
attribute.func_defaults,
1213
attribute.func_closure)))
1214
if deprecate:
1215
# Deprecate all alternate interfaces
1216
iname="_AlternateDBusNames_interface_annotation{}"
1217
for interface_name in interface_names:
1218
1219
@dbus_interface_annotations(interface_name)
1220
def func(self):
1221
return { "org.freedesktop.DBus.Deprecated":
1222
"true" }
1223
# Find an unused name
1224
for aname in (iname.format(i)
1225
for i in itertools.count()):
1226
if aname not in attr:
1227
attr[aname] = func
1228
break
1229
if interface_names:
1230
# Replace the class with a new subclass of it with
1231
# methods, signals, etc. as created above.
1232
cls = type(b"{}Alternate".format(cls.__name__),
1233
(cls, ), attr)
1234
return cls
1235
1236
return wrapper
1237
1238
1239
@alternate_dbus_interfaces({"se.recompile.Mandos":
1240
"se.bsnet.fukt.Mandos"})
740
1241
class ClientDBus(Client, DBusObjectWithProperties):
741
1242
"""A Client class using D-Bus
742
1243
746
1247
"""
747
1248
748
1249
runtime_expansions = (Client.runtime_expansions
749
+ ("dbus_object_path",))
1250
+ ("dbus_object_path", ))
1251
1252
_interface = "se.recompile.Mandos.Client"
750
1253
751
1254
# dbus.service.Object doesn't use super(), so we can't either.
752
1255
753
1256
def __init__(self, bus = None, *args, **kwargs):
754
self._approvals_pending = 0
755
1257
self.bus = bus
756
1258
Client.__init__(self, *args, **kwargs)
757
1259
# Only now, when this client is initialized, can it show up on
758
1260
# the D-Bus
759
client_object_name = unicode(self.name).translate(
1261
client_object_name = str(self.name).translate(
760
1262
{ord("."): ord("_"),
761
1263
ord("-"): ord("_")})
762
self.dbus_object_path = (dbus.ObjectPath
763
("/clients/" + client_object_name))
1264
self.dbus_object_path = dbus.ObjectPath(
1265
"/clients/" + client_object_name)
764
1266
DBusObjectWithProperties.__init__(self, self.bus,
765
1267
self.dbus_object_path)
766
767
def _get_approvals_pending(self):
768
return self._approvals_pending
769
def _set_approvals_pending(self, value):
770
old_value = self._approvals_pending
771
self._approvals_pending = value
772
bval = bool(value)
773
if (hasattr(self, "dbus_object_path")
774
and bval is not bool(old_value)):
775
dbus_bool = dbus.Boolean(bval, variant_level=1)
776
self.PropertyChanged(dbus.String("ApprovalPending"),
777
dbus_bool)
778
779
approvals_pending = property(_get_approvals_pending,
780
_set_approvals_pending)
781
del _get_approvals_pending, _set_approvals_pending
782
783
@staticmethod
784
def _datetime_to_dbus(dt, variant_level=0):
785
"""Convert a UTC datetime.datetime() to a D-Bus type."""
786
return dbus.String(dt.isoformat(),
787
variant_level=variant_level)
788
789
def enable(self):
790
oldstate = getattr(self, "enabled", False)
791
r = Client.enable(self)
792
if oldstate != self.enabled:
793
# Emit D-Bus signals
794
self.PropertyChanged(dbus.String("Enabled"),
795
dbus.Boolean(True, variant_level=1))
796
self.PropertyChanged(
797
dbus.String("LastEnabled"),
798
self._datetime_to_dbus(self.last_enabled,
799
variant_level=1))
800
return r
801
802
def disable(self, quiet = False):
803
oldstate = getattr(self, "enabled", False)
804
r = Client.disable(self, quiet=quiet)
805
if not quiet and oldstate != self.enabled:
806
# Emit D-Bus signal
807
self.PropertyChanged(dbus.String("Enabled"),
808
dbus.Boolean(False, variant_level=1))
809
return r
1268
1269
def notifychangeproperty(transform_func, dbus_name,
1270
type_func=lambda x: x,
1271
variant_level=1,
1272
invalidate_only=False,
1273
_interface=_interface):
1274
""" Modify a variable so that it's a property which announces
1275
its changes to DBus.
1276
1277
transform_fun: Function that takes a value and a variant_level
1278
and transforms it to a D-Bus type.
1279
dbus_name: D-Bus name of the variable
1280
type_func: Function that transform the value before sending it
1281
to the D-Bus. Default: no transform
1282
variant_level: D-Bus variant level. Default: 1
1283
"""
1284
attrname = "_{}".format(dbus_name)
1285
1286
def setter(self, value):
1287
if hasattr(self, "dbus_object_path"):
1288
if (not hasattr(self, attrname) or
1289
type_func(getattr(self, attrname, None))
1290
!= type_func(value)):
1291
if invalidate_only:
1292
self.PropertiesChanged(
1293
_interface, dbus.Dictionary(),
1294
dbus.Array((dbus_name, )))
1295
else:
1296
dbus_value = transform_func(
1297
type_func(value),
1298
variant_level = variant_level)
1299
self.PropertyChanged(dbus.String(dbus_name),
1300
dbus_value)
1301
self.PropertiesChanged(
1302
_interface,
1303
dbus.Dictionary({ dbus.String(dbus_name):
1304
dbus_value }),
1305
dbus.Array())
1306
setattr(self, attrname, value)
1307
1308
return property(lambda self: getattr(self, attrname), setter)
1309
1310
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1311
approvals_pending = notifychangeproperty(dbus.Boolean,
1312
"ApprovalPending",
1313
type_func = bool)
1314
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1315
last_enabled = notifychangeproperty(datetime_to_dbus,
1316
"LastEnabled")
1317
checker = notifychangeproperty(
1318
dbus.Boolean, "CheckerRunning",
1319
type_func = lambda checker: checker is not None)
1320
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1321
"LastCheckedOK")
1322
last_checker_status = notifychangeproperty(dbus.Int16,
1323
"LastCheckerStatus")
1324
last_approval_request = notifychangeproperty(
1325
datetime_to_dbus, "LastApprovalRequest")
1326
approved_by_default = notifychangeproperty(dbus.Boolean,
1327
"ApprovedByDefault")
1328
approval_delay = notifychangeproperty(
1329
dbus.UInt64, "ApprovalDelay",
1330
type_func = lambda td: td.total_seconds() * 1000)
1331
approval_duration = notifychangeproperty(
1332
dbus.UInt64, "ApprovalDuration",
1333
type_func = lambda td: td.total_seconds() * 1000)
1334
host = notifychangeproperty(dbus.String, "Host")
1335
timeout = notifychangeproperty(
1336
dbus.UInt64, "Timeout",
1337
type_func = lambda td: td.total_seconds() * 1000)
1338
extended_timeout = notifychangeproperty(
1339
dbus.UInt64, "ExtendedTimeout",
1340
type_func = lambda td: td.total_seconds() * 1000)
1341
interval = notifychangeproperty(
1342
dbus.UInt64, "Interval",
1343
type_func = lambda td: td.total_seconds() * 1000)
1344
checker_command = notifychangeproperty(dbus.String, "Checker")
1345
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1346
invalidate_only=True)
1347
1348
del notifychangeproperty
810
1349
811
1350
def __del__(self, *args, **kwargs):
812
1351
try:
817
1356
DBusObjectWithProperties.__del__(self, *args, **kwargs)
818
1357
Client.__del__(self, *args, **kwargs)
819
1358
820
def checker_callback(self, pid, condition, command,
821
*args, **kwargs):
822
self.checker_callback_tag = None
823
self.checker = None
824
# Emit D-Bus signal
825
self.PropertyChanged(dbus.String("CheckerRunning"),
826
dbus.Boolean(False, variant_level=1))
827
if os.WIFEXITED(condition):
828
exitstatus = os.WEXITSTATUS(condition)
1359
def checker_callback(self, source, condition,
1360
connection, command, *args, **kwargs):
1361
ret = Client.checker_callback(self, source, condition,
1362
connection, command, *args,
1363
**kwargs)
1364
exitstatus = self.last_checker_status
1365
if exitstatus >= 0:
829
1366
# Emit D-Bus signal
830
1367
self.CheckerCompleted(dbus.Int16(exitstatus),
831
dbus.Int64(condition),
1368
dbus.Int64(0),
832
1369
dbus.String(command))
833
1370
else:
834
1371
# Emit D-Bus signal
835
1372
self.CheckerCompleted(dbus.Int16(-1),
836
dbus.Int64(condition),
1373
dbus.Int64(
1374
self.last_checker_signal),
837
1375
dbus.String(command))
838
839
return Client.checker_callback(self, pid, condition, command,
840
*args, **kwargs)
841
842
def checked_ok(self, *args, **kwargs):
843
Client.checked_ok(self, *args, **kwargs)
844
# Emit D-Bus signal
845
self.PropertyChanged(
846
dbus.String("LastCheckedOK"),
847
(self._datetime_to_dbus(self.last_checked_ok,
848
variant_level=1)))
849
850
def need_approval(self, *args, **kwargs):
851
r = Client.need_approval(self, *args, **kwargs)
852
# Emit D-Bus signal
853
self.PropertyChanged(
854
dbus.String("LastApprovalRequest"),
855
(self._datetime_to_dbus(self.last_approval_request,
856
variant_level=1)))
857
return r
1376
return ret
858
1377
859
1378
def start_checker(self, *args, **kwargs):
860
old_checker = self.checker
861
if self.checker is not None:
862
old_checker_pid = self.checker.pid
863
else:
864
old_checker_pid = None
1379
old_checker_pid = getattr(self.checker, "pid", None)
865
1380
r = Client.start_checker(self, *args, **kwargs)
866
1381
# Only if new checker process was started
867
1382
if (self.checker is not None
868
1383
and old_checker_pid != self.checker.pid):
869
1384
# Emit D-Bus signal
870
1385
self.CheckerStarted(self.current_checker_command)
871
self.PropertyChanged(
872
dbus.String("CheckerRunning"),
873
dbus.Boolean(True, variant_level=1))
874
1386
return r
875
1387
876
def stop_checker(self, *args, **kwargs):
877
old_checker = getattr(self, "checker", None)
878
r = Client.stop_checker(self, *args, **kwargs)
879
if (old_checker is not None
880
and getattr(self, "checker", None) is None):
881
self.PropertyChanged(dbus.String("CheckerRunning"),
882
dbus.Boolean(False, variant_level=1))
883
return r
884
885
1388
def _reset_approved(self):
886
self._approved = None
1389
self.approved = None
887
1390
return False
888
1391
889
1392
def approve(self, value=True):
1393
self.approved = value
1394
gobject.timeout_add(int(self.approval_duration.total_seconds()
1395
* 1000), self._reset_approved)
890
1396
self.send_changedstate()
891
self._approved = value
892
gobject.timeout_add(self._timedelta_to_milliseconds
893
(self.approval_duration),
894
self._reset_approved)
895
896
1397
897
1398
## D-Bus methods, signals & properties
898
_interface = "se.bsnet.fukt.Mandos.Client"
1399
1400
## Interfaces
899
1401
900
1402
## Signals
901
1403
912
1414
pass
913
1415
914
1416
# PropertyChanged - signal
1417
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
915
1418
@dbus.service.signal(_interface, signature="sv")
916
1419
def PropertyChanged(self, property, value):
917
1420
"D-Bus signal"
981
1484
return dbus.Boolean(bool(self.approvals_pending))
982
1485
983
1486
# ApprovedByDefault - property
984
@dbus_service_property(_interface, signature="b",
1487
@dbus_service_property(_interface,
1488
signature="b",
985
1489
access="readwrite")
986
1490
def ApprovedByDefault_dbus_property(self, value=None):
987
1491
if value is None: # get
988
1492
return dbus.Boolean(self.approved_by_default)
989
1493
self.approved_by_default = bool(value)
990
# Emit D-Bus signal
991
self.PropertyChanged(dbus.String("ApprovedByDefault"),
992
dbus.Boolean(value, variant_level=1))
993
1494
994
1495
# ApprovalDelay - property
995
@dbus_service_property(_interface, signature="t",
1496
@dbus_service_property(_interface,
1497
signature="t",
996
1498
access="readwrite")
997
1499
def ApprovalDelay_dbus_property(self, value=None):
998
1500
if value is None: # get
999
return dbus.UInt64(self.approval_delay_milliseconds())
1501
return dbus.UInt64(self.approval_delay.total_seconds()
1502
* 1000)
1000
1503
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1001
# Emit D-Bus signal
1002
self.PropertyChanged(dbus.String("ApprovalDelay"),
1003
dbus.UInt64(value, variant_level=1))
1004
1504
1005
1505
# ApprovalDuration - property
1006
@dbus_service_property(_interface, signature="t",
1506
@dbus_service_property(_interface,
1507
signature="t",
1007
1508
access="readwrite")
1008
1509
def ApprovalDuration_dbus_property(self, value=None):
1009
1510
if value is None: # get
1010
return dbus.UInt64(self._timedelta_to_milliseconds(
1011
self.approval_duration))
1511
return dbus.UInt64(self.approval_duration.total_seconds()
1512
* 1000)
1012
1513
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1013
# Emit D-Bus signal
1014
self.PropertyChanged(dbus.String("ApprovalDuration"),
1015
dbus.UInt64(value, variant_level=1))
1016
1514
1017
1515
# Name - property
1018
1516
@dbus_service_property(_interface, signature="s", access="read")
1025
1523
return dbus.String(self.fingerprint)
1026
1524
1027
1525
# Host - property
1028
@dbus_service_property(_interface, signature="s",
1526
@dbus_service_property(_interface,
1527
signature="s",
1029
1528
access="readwrite")
1030
1529
def Host_dbus_property(self, value=None):
1031
1530
if value is None: # get
1032
1531
return dbus.String(self.host)
1033
self.host = value
1034
# Emit D-Bus signal
1035
self.PropertyChanged(dbus.String("Host"),
1036
dbus.String(value, variant_level=1))
1532
self.host = str(value)
1037
1533
1038
1534
# Created - property
1039
1535
@dbus_service_property(_interface, signature="s", access="read")
1040
1536
def Created_dbus_property(self):
1041
return dbus.String(self._datetime_to_dbus(self.created))
1537
return datetime_to_dbus(self.created)
1042
1538
1043
1539
# LastEnabled - property
1044
1540
@dbus_service_property(_interface, signature="s", access="read")
1045
1541
def LastEnabled_dbus_property(self):
1046
if self.last_enabled is None:
1047
return dbus.String("")
1048
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1542
return datetime_to_dbus(self.last_enabled)
1049
1543
1050
1544
# Enabled - property
1051
@dbus_service_property(_interface, signature="b",
1545
@dbus_service_property(_interface,
1546
signature="b",
1052
1547
access="readwrite")
1053
1548
def Enabled_dbus_property(self, value=None):
1054
1549
if value is None: # get
1059
1554
self.disable()
1060
1555
1061
1556
# LastCheckedOK - property
1062
@dbus_service_property(_interface, signature="s",
1557
@dbus_service_property(_interface,
1558
signature="s",
1063
1559
access="readwrite")
1064
1560
def LastCheckedOK_dbus_property(self, value=None):
1065
1561
if value is not None:
1066
1562
self.checked_ok()
1067
1563
return
1068
if self.last_checked_ok is None:
1069
return dbus.String("")
1070
return dbus.String(self._datetime_to_dbus(self
1071
.last_checked_ok))
1564
return datetime_to_dbus(self.last_checked_ok)
1565
1566
# LastCheckerStatus - property
1567
@dbus_service_property(_interface, signature="n", access="read")
1568
def LastCheckerStatus_dbus_property(self):
1569
return dbus.Int16(self.last_checker_status)
1570
1571
# Expires - property
1572
@dbus_service_property(_interface, signature="s", access="read")
1573
def Expires_dbus_property(self):
1574
return datetime_to_dbus(self.expires)
1072
1575
1073
1576
# LastApprovalRequest - property
1074
1577
@dbus_service_property(_interface, signature="s", access="read")
1075
1578
def LastApprovalRequest_dbus_property(self):
1076
if self.last_approval_request is None:
1077
return dbus.String("")
1078
return dbus.String(self.
1079
_datetime_to_dbus(self
1080
.last_approval_request))
1579
return datetime_to_dbus(self.last_approval_request)
1081
1580
1082
1581
# Timeout - property
1083
@dbus_service_property(_interface, signature="t",
1582
@dbus_service_property(_interface,
1583
signature="t",
1084
1584
access="readwrite")
1085
1585
def Timeout_dbus_property(self, value=None):
1086
1586
if value is None: # get
1087
return dbus.UInt64(self.timeout_milliseconds())
1587
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1588
old_timeout = self.timeout
1088
1589
self.timeout = datetime.timedelta(0, 0, 0, value)
1089
# Emit D-Bus signal
1090
self.PropertyChanged(dbus.String("Timeout"),
1091
dbus.UInt64(value, variant_level=1))
1092
if getattr(self, "disable_initiator_tag", None) is None:
1093
return
1094
# Reschedule timeout
1095
gobject.source_remove(self.disable_initiator_tag)
1096
self.disable_initiator_tag = None
1097
time_to_die = (self.
1098
_timedelta_to_milliseconds((self
1099
.last_checked_ok
1100
+ self.timeout)
1101
- datetime.datetime
1102
.utcnow()))
1103
if time_to_die <= 0:
1104
# The timeout has passed
1105
self.disable()
1106
else:
1107
self.disable_initiator_tag = (gobject.timeout_add
1108
(time_to_die, self.disable))
1590
# Reschedule disabling
1591
if self.enabled:
1592
now = datetime.datetime.utcnow()
1593
self.expires += self.timeout - old_timeout
1594
if self.expires <= now:
1595
# The timeout has passed
1596
self.disable()
1597
else:
1598
if (getattr(self, "disable_initiator_tag", None)
1599
is None):
1600
return
1601
gobject.source_remove(self.disable_initiator_tag)
1602
self.disable_initiator_tag = gobject.timeout_add(
1603
int((self.expires - now).total_seconds() * 1000),
1604
self.disable)
1605
1606
# ExtendedTimeout - property
1607
@dbus_service_property(_interface,
1608
signature="t",
1609
access="readwrite")
1610
def ExtendedTimeout_dbus_property(self, value=None):
1611
if value is None: # get
1612
return dbus.UInt64(self.extended_timeout.total_seconds()
1613
* 1000)
1614
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1109
1615
1110
1616
# Interval - property
1111
@dbus_service_property(_interface, signature="t",
1617
@dbus_service_property(_interface,
1618
signature="t",
1112
1619
access="readwrite")
1113
1620
def Interval_dbus_property(self, value=None):
1114
1621
if value is None: # get
1115
return dbus.UInt64(self.interval_milliseconds())
1622
return dbus.UInt64(self.interval.total_seconds() * 1000)
1116
1623
self.interval = datetime.timedelta(0, 0, 0, value)
1117
# Emit D-Bus signal
1118
self.PropertyChanged(dbus.String("Interval"),
1119
dbus.UInt64(value, variant_level=1))
1120
1624
if getattr(self, "checker_initiator_tag", None) is None:
1121
1625
return
1122
# Reschedule checker run
1123
gobject.source_remove(self.checker_initiator_tag)
1124
self.checker_initiator_tag = (gobject.timeout_add
1125
(value, self.start_checker))
1126
self.start_checker() # Start one now, too
1127
1626
if self.enabled:
1627
# Reschedule checker run
1628
gobject.source_remove(self.checker_initiator_tag)
1629
self.checker_initiator_tag = gobject.timeout_add(
1630
value, self.start_checker)
1631
self.start_checker() # Start one now, too
1632
1128
1633
# Checker - property
1129
@dbus_service_property(_interface, signature="s",
1634
@dbus_service_property(_interface,
1635
signature="s",
1130
1636
access="readwrite")
1131
1637
def Checker_dbus_property(self, value=None):
1132
1638
if value is None: # get
1133
1639
return dbus.String(self.checker_command)
1134
self.checker_command = value
1135
# Emit D-Bus signal
1136
self.PropertyChanged(dbus.String("Checker"),
1137
dbus.String(self.checker_command,
1138
variant_level=1))
1640
self.checker_command = str(value)
1139
1641
1140
1642
# CheckerRunning - property
1141
@dbus_service_property(_interface, signature="b",
1643
@dbus_service_property(_interface,
1644
signature="b",
1142
1645
access="readwrite")
1143
1646
def CheckerRunning_dbus_property(self, value=None):
1144
1647
if value is None: # get
1154
1657
return self.dbus_object_path # is already a dbus.ObjectPath
1155
1658
1156
1659
# Secret = property
1157
@dbus_service_property(_interface, signature="ay",
1158
access="write", byte_arrays=True)
1660
@dbus_service_property(_interface,
1661
signature="ay",
1662
access="write",
1663
byte_arrays=True)
1159
1664
def Secret_dbus_property(self, value):
1160
self.secret = str(value)
1665
self.secret = bytes(value)
1161
1666
1162
1667
del _interface
1163
1668
1167
1672
self._pipe = child_pipe
1168
1673
self._pipe.send(('init', fpr, address))
1169
1674
if not self._pipe.recv():
1170
raise KeyError()
1171
1675
raise KeyError(fpr)
1676
1172
1677
def __getattribute__(self, name):
1173
if(name == '_pipe'):
1678
if name == '_pipe':
1174
1679
return super(ProxyClient, self).__getattribute__(name)
1175
1680
self._pipe.send(('getattr', name))
1176
1681
data = self._pipe.recv()
1177
1682
if data[0] == 'data':
1178
1683
return data[1]
1179
1684
if data[0] == 'function':
1685
1180
1686
def func(*args, **kwargs):
1181
1687
self._pipe.send(('funcall', name, args, kwargs))
1182
1688
return self._pipe.recv()[1]
1689
1183
1690
return func
1184
1691
1185
1692
def __setattr__(self, name, value):
1186
if(name == '_pipe'):
1693
if name == '_pipe':
1187
1694
return super(ProxyClient, self).__setattr__(name, value)
1188
1695
self._pipe.send(('setattr', name, value))
1189
1696
1197
1704
def handle(self):
1198
1705
with contextlib.closing(self.server.child_pipe) as child_pipe:
1199
1706
logger.info("TCP connection from: %s",
1200
unicode(self.client_address))
1707
str(self.client_address))
1201
1708
logger.debug("Pipe FD: %d",
1202
1709
self.server.child_pipe.fileno())
1203
1204
session = (gnutls.connection
1205
.ClientSession(self.request,
1206
gnutls.connection
1207
.X509Credentials()))
1208
1710
1711
session = gnutls.connection.ClientSession(
1712
self.request, gnutls.connection .X509Credentials())
1713
1209
1714
# Note: gnutls.connection.X509Credentials is really a
1210
1715
# generic GnuTLS certificate credentials object so long as
1211
1716
# no X.509 keys are added to it. Therefore, we can use it
1212
1717
# here despite using OpenPGP certificates.
1213
1718
1214
1719
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1215
1720
# "+AES-256-CBC", "+SHA1",
1216
1721
# "+COMP-NULL", "+CTYPE-OPENPGP",
1219
1724
priority = self.server.gnutls_priority
1220
1725
if priority is None:
1221
1726
priority = "NORMAL"
1222
(gnutls.library.functions
1223
.gnutls_priority_set_direct(session._c_object,
1224
priority, None))
1225
1727
gnutls.library.functions.gnutls_priority_set_direct(
1728
session._c_object, priority, None)
1729
1226
1730
# Start communication using the Mandos protocol
1227
1731
# Get protocol number
1228
1732
line = self.request.makefile().readline()
1229
1733
logger.debug("Protocol version: %r", line)
1230
1734
try:
1231
1735
if int(line.strip().split()[0]) > 1:
1232
raise RuntimeError
1736
raise RuntimeError(line)
1233
1737
except (ValueError, IndexError, RuntimeError) as error:
1234
1738
logger.error("Unknown protocol version: %s", error)
1235
1739
return
1236
1740
1237
1741
# Start GnuTLS connection
1238
1742
try:
1239
1743
session.handshake()
1243
1747
# established. Just abandon the request.
1244
1748
return
1245
1749
logger.debug("Handshake succeeded")
1246
1750
1247
1751
approval_required = False
1248
1752
try:
1249
1753
try:
1250
fpr = self.fingerprint(self.peer_certificate
1251
(session))
1754
fpr = self.fingerprint(
1755
self.peer_certificate(session))
1252
1756
except (TypeError,
1253
1757
gnutls.errors.GNUTLSError) as error:
1254
1758
logger.warning("Bad certificate: %s", error)
1255
1759
return
1256
1760
logger.debug("Fingerprint: %s", fpr)
1257
1761
1258
1762
try:
1259
1763
client = ProxyClient(child_pipe, fpr,
1260
1764
self.client_address)
1269
1773
while True:
1270
1774
if not client.enabled:
1271
1775
logger.info("Client %s is disabled",
1272
client.name)
1776
client.name)
1273
1777
if self.server.use_dbus:
1274
1778
# Emit D-Bus signal
1275
client.Rejected("Disabled")
1779
client.Rejected("Disabled")
1276
1780
return
1277
1781
1278
if client._approved or not client.approval_delay:
1782
if client.approved or not client.approval_delay:
1279
1783
#We are approved or approval is disabled
1280
1784
break
1281
elif client._approved is None:
1785
elif client.approved is None:
1282
1786
logger.info("Client %s needs approval",
1283
1787
client.name)
1284
1788
if self.server.use_dbus:
1285
1789
# Emit D-Bus signal
1286
1790
client.NeedApproval(
1287
client.approval_delay_milliseconds(),
1288
client.approved_by_default)
1791
client.approval_delay.total_seconds()
1792
* 1000, client.approved_by_default)
1289
1793
else:
1290
1794
logger.warning("Client %s was not approved",
1291
1795
client.name)
1295
1799
return
1296
1800
1297
1801
#wait until timeout or approved
1298
#x = float(client._timedelta_to_milliseconds(delay))
1299
1802
time = datetime.datetime.now()
1300
1803
client.changedstate.acquire()
1301
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1804
client.changedstate.wait(delay.total_seconds())
1302
1805
client.changedstate.release()
1303
1806
time2 = datetime.datetime.now()
1304
1807
if (time2 - time) >= delay:
1320
1823
try:
1321
1824
sent = session.send(client.secret[sent_size:])
1322
1825
except gnutls.errors.GNUTLSError as error:
1323
logger.warning("gnutls send failed")
1826
logger.warning("gnutls send failed",
1827
exc_info=error)
1324
1828
return
1325
logger.debug("Sent: %d, remaining: %d",
1326
sent, len(client.secret)
1327
- (sent_size + sent))
1829
logger.debug("Sent: %d, remaining: %d", sent,
1830
len(client.secret) - (sent_size
1831
+ sent))
1328
1832
sent_size += sent
1329
1833
1330
1834
logger.info("Sending secret to %s", client.name)
1331
# bump the timeout as if seen
1332
client.checked_ok()
1835
# bump the timeout using extended_timeout
1836
client.bump_timeout(client.extended_timeout)
1333
1837
if self.server.use_dbus:
1334
1838
# Emit D-Bus signal
1335
1839
client.GotSecret()
1340
1844
try:
1341
1845
session.bye()
1342
1846
except gnutls.errors.GNUTLSError as error:
1343
logger.warning("GnuTLS bye failed")
1847
logger.warning("GnuTLS bye failed",
1848
exc_info=error)
1344
1849
1345
1850
@staticmethod
1346
1851
def peer_certificate(session):
1347
1852
"Return the peer's OpenPGP certificate as a bytestring"
1348
1853
# If not an OpenPGP certificate...
1349
if (gnutls.library.functions
1350
.gnutls_certificate_type_get(session._c_object)
1854
if (gnutls.library.functions.gnutls_certificate_type_get(
1855
session._c_object)
1351
1856
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1352
1857
# ...do the normal thing
1353
1858
return session.peer_certificate
1367
1872
def fingerprint(openpgp):
1368
1873
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1369
1874
# New GnuTLS "datum" with the OpenPGP public key
1370
datum = (gnutls.library.types
1371
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1372
ctypes.POINTER
1373
(ctypes.c_ubyte)),
1374
ctypes.c_uint(len(openpgp))))
1875
datum = gnutls.library.types.gnutls_datum_t(
1876
ctypes.cast(ctypes.c_char_p(openpgp),
1877
ctypes.POINTER(ctypes.c_ubyte)),
1878
ctypes.c_uint(len(openpgp)))
1375
1879
# New empty GnuTLS certificate
1376
1880
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1377
(gnutls.library.functions
1378
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1881
gnutls.library.functions.gnutls_openpgp_crt_init(
1882
ctypes.byref(crt))
1379
1883
# Import the OpenPGP public key into the certificate
1380
(gnutls.library.functions
1381
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1382
gnutls.library.constants
1383
.GNUTLS_OPENPGP_FMT_RAW))
1884
gnutls.library.functions.gnutls_openpgp_crt_import(
1885
crt, ctypes.byref(datum),
1886
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1384
1887
# Verify the self signature in the key
1385
1888
crtverify = ctypes.c_uint()
1386
(gnutls.library.functions
1387
.gnutls_openpgp_crt_verify_self(crt, 0,
1388
ctypes.byref(crtverify)))
1889
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1890
crt, 0, ctypes.byref(crtverify))
1389
1891
if crtverify.value != 0:
1390
1892
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1391
raise (gnutls.errors.CertificateSecurityError
1392
("Verify failed"))
1893
raise gnutls.errors.CertificateSecurityError(
1894
"Verify failed")
1393
1895
# New buffer for the fingerprint
1394
1896
buf = ctypes.create_string_buffer(20)
1395
1897
buf_len = ctypes.c_size_t()
1396
1898
# Get the fingerprint from the certificate into the buffer
1397
(gnutls.library.functions
1398
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1399
ctypes.byref(buf_len)))
1899
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1900
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1400
1901
# Deinit the certificate
1401
1902
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1402
1903
# Convert the buffer to a Python bytestring
1403
1904
fpr = ctypes.string_at(buf, buf_len.value)
1404
1905
# Convert the bytestring to hexadecimal notation
1405
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1906
hex_fpr = binascii.hexlify(fpr).upper()
1406
1907
return hex_fpr
1407
1908
1408
1909
1409
1910
class MultiprocessingMixIn(object):
1410
1911
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1912
1411
1913
def sub_process_main(self, request, address):
1412
1914
try:
1413
1915
self.finish_request(request, address)
1414
except:
1916
except Exception:
1415
1917
self.handle_error(request, address)
1416
1918
self.close_request(request)
1417
1919
1418
1920
def process_request(self, request, address):
1419
1921
"""Start a new process to process the request."""
1420
multiprocessing.Process(target = self.sub_process_main,
1421
args = (request, address)).start()
1922
proc = multiprocessing.Process(target = self.sub_process_main,
1923
args = (request, address))
1924
proc.start()
1925
return proc
1926
1422
1927
1423
1928
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1424
1929
""" adds a pipe to the MixIn """
1930
1425
1931
def process_request(self, request, client_address):
1426
1932
"""Overrides and wraps the original process_request().
1427
1933
1428
1934
This function creates a new pipe in self.pipe
1429
1935
"""
1430
1936
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1431
1432
super(MultiprocessingMixInWithPipe,
1433
self).process_request(request, client_address)
1937
1938
proc = MultiprocessingMixIn.process_request(self, request,
1939
client_address)
1434
1940
self.child_pipe.close()
1435
self.add_pipe(parent_pipe)
1436
1437
def add_pipe(self, parent_pipe):
1941
self.add_pipe(parent_pipe, proc)
1942
1943
def add_pipe(self, parent_pipe, proc):
1438
1944
"""Dummy function; override as necessary"""
1439
raise NotImplementedError
1945
raise NotImplementedError()
1946
1440
1947
1441
1948
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1442
1949
socketserver.TCPServer, object):
1447
1954
interface: None or a network interface name (string)
1448
1955
use_ipv6: Boolean; to use IPv6 or not
1449
1956
"""
1957
1450
1958
def __init__(self, server_address, RequestHandlerClass,
1451
interface=None, use_ipv6=True):
1959
interface=None,
1960
use_ipv6=True,
1961
socketfd=None):
1962
"""If socketfd is set, use that file descriptor instead of
1963
creating a new one with socket.socket().
1964
"""
1452
1965
self.interface = interface
1453
1966
if use_ipv6:
1454
1967
self.address_family = socket.AF_INET6
1968
if socketfd is not None:
1969
# Save the file descriptor
1970
self.socketfd = socketfd
1971
# Save the original socket.socket() function
1972
self.socket_socket = socket.socket
1973
# To implement --socket, we monkey patch socket.socket.
1974
#
1975
# (When socketserver.TCPServer is a new-style class, we
1976
# could make self.socket into a property instead of monkey
1977
# patching socket.socket.)
1978
#
1979
# Create a one-time-only replacement for socket.socket()
1980
@functools.wraps(socket.socket)
1981
def socket_wrapper(*args, **kwargs):
1982
# Restore original function so subsequent calls are
1983
# not affected.
1984
socket.socket = self.socket_socket
1985
del self.socket_socket
1986
# This time only, return a new socket object from the
1987
# saved file descriptor.
1988
return socket.fromfd(self.socketfd, *args, **kwargs)
1989
# Replace socket.socket() function with wrapper
1990
socket.socket = socket_wrapper
1991
# The socketserver.TCPServer.__init__ will call
1992
# socket.socket(), which might be our replacement,
1993
# socket_wrapper(), if socketfd was set.
1455
1994
socketserver.TCPServer.__init__(self, server_address,
1456
1995
RequestHandlerClass)
1996
1457
1997
def server_bind(self):
1458
1998
"""This overrides the normal server_bind() function
1459
1999
to bind to an interface if one was specified, and also NOT to
1465
2005
self.interface)
1466
2006
else:
1467
2007
try:
1468
self.socket.setsockopt(socket.SOL_SOCKET,
1469
SO_BINDTODEVICE,
1470
str(self.interface
1471
+ '\0'))
2008
self.socket.setsockopt(
2009
socket.SOL_SOCKET, SO_BINDTODEVICE,
2010
(self.interface + "\0").encode("utf-8"))
1472
2011
except socket.error as error:
1473
if error[0] == errno.EPERM:
1474
logger.error("No permission to"
1475
" bind to interface %s",
1476
self.interface)
1477
elif error[0] == errno.ENOPROTOOPT:
2012
if error.errno == errno.EPERM:
2013
logger.error("No permission to bind to"
2014
" interface %s", self.interface)
2015
elif error.errno == errno.ENOPROTOOPT:
1478
2016
logger.error("SO_BINDTODEVICE not available;"
1479
2017
" cannot bind to interface %s",
1480
2018
self.interface)
2019
elif error.errno == errno.ENODEV:
2020
logger.error("Interface %s does not exist,"
2021
" cannot bind", self.interface)
1481
2022
else:
1482
2023
raise
1483
2024
# Only bind(2) the socket if we really need to.
1486
2027
if self.address_family == socket.AF_INET6:
1487
2028
any_address = "::" # in6addr_any
1488
2029
else:
1489
any_address = socket.INADDR_ANY
2030
any_address = "0.0.0.0" # INADDR_ANY
1490
2031
self.server_address = (any_address,
1491
2032
self.server_address[1])
1492
2033
elif not self.server_address[1]:
1493
self.server_address = (self.server_address[0],
1494
0)
2034
self.server_address = (self.server_address[0], 0)
1495
2035
# if self.interface:
1496
2036
# self.server_address = (self.server_address[0],
1497
2037
# 0, # port
1511
2051
1512
2052
Assumes a gobject.MainLoop event loop.
1513
2053
"""
2054
1514
2055
def __init__(self, server_address, RequestHandlerClass,
1515
interface=None, use_ipv6=True, clients=None,
1516
gnutls_priority=None, use_dbus=True):
2056
interface=None,
2057
use_ipv6=True,
2058
clients=None,
2059
gnutls_priority=None,
2060
use_dbus=True,
2061
socketfd=None):
1517
2062
self.enabled = False
1518
2063
self.clients = clients
1519
2064
if self.clients is None:
1520
self.clients = set()
2065
self.clients = {}
1521
2066
self.use_dbus = use_dbus
1522
2067
self.gnutls_priority = gnutls_priority
1523
2068
IPv6_TCPServer.__init__(self, server_address,
1524
2069
RequestHandlerClass,
1525
2070
interface = interface,
1526
use_ipv6 = use_ipv6)
2071
use_ipv6 = use_ipv6,
2072
socketfd = socketfd)
2073
1527
2074
def server_activate(self):
1528
2075
if self.enabled:
1529
2076
return socketserver.TCPServer.server_activate(self)
2077
1530
2078
def enable(self):
1531
2079
self.enabled = True
1532
def add_pipe(self, parent_pipe):
2080
2081
def add_pipe(self, parent_pipe, proc):
1533
2082
# Call "handle_ipc" for both data and EOF events
1534
gobject.io_add_watch(parent_pipe.fileno(),
1535
gobject.IO_IN | gobject.IO_HUP,
1536
functools.partial(self.handle_ipc,
1537
parent_pipe = parent_pipe))
1538
1539
def handle_ipc(self, source, condition, parent_pipe=None,
2083
gobject.io_add_watch(
2084
parent_pipe.fileno(),
2085
gobject.IO_IN | gobject.IO_HUP,
2086
functools.partial(self.handle_ipc,
2087
parent_pipe = parent_pipe,
2088
proc = proc))
2089
2090
def handle_ipc(self, source, condition,
2091
parent_pipe=None,
2092
proc = None,
1540
2093
client_object=None):
1541
condition_names = {
1542
gobject.IO_IN: "IN", # There is data to read.
1543
gobject.IO_OUT: "OUT", # Data can be written (without
1544
# blocking).
1545
gobject.IO_PRI: "PRI", # There is urgent data to read.
1546
gobject.IO_ERR: "ERR", # Error condition.
1547
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1548
# broken, usually for pipes and
1549
# sockets).
1550
}
1551
conditions_string = ' | '.join(name
1552
for cond, name in
1553
condition_names.iteritems()
1554
if cond & condition)
1555
# error or the other end of multiprocessing.Pipe has closed
1556
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2094
# error, or the other end of multiprocessing.Pipe has closed
2095
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2096
# Wait for other process to exit
2097
proc.join()
1557
2098
return False
1558
2099
1559
2100
# Read a request from the child
1564
2105
fpr = request[1]
1565
2106
address = request[2]
1566
2107
1567
for c in self.clients:
2108
for c in self.clients.itervalues():
1568
2109
if c.fingerprint == fpr:
1569
2110
client = c
1570
2111
break
1573
2114
"dress: %s", fpr, address)
1574
2115
if self.use_dbus:
1575
2116
# Emit D-Bus signal
1576
mandos_dbus_service.ClientNotFound(fpr, address[0])
2117
mandos_dbus_service.ClientNotFound(fpr,
2118
address[0])
1577
2119
parent_pipe.send(False)
1578
2120
return False
1579
2121
1580
gobject.io_add_watch(parent_pipe.fileno(),
1581
gobject.IO_IN | gobject.IO_HUP,
1582
functools.partial(self.handle_ipc,
1583
parent_pipe = parent_pipe,
1584
client_object = client))
2122
gobject.io_add_watch(
2123
parent_pipe.fileno(),
2124
gobject.IO_IN | gobject.IO_HUP,
2125
functools.partial(self.handle_ipc,
2126
parent_pipe = parent_pipe,
2127
proc = proc,
2128
client_object = client))
1585
2129
parent_pipe.send(True)
1586
# remove the old hook in favor of the new above hook on same fileno
2130
# remove the old hook in favor of the new above hook on
2131
# same fileno
1587
2132
return False
1588
2133
if command == 'funcall':
1589
2134
funcname = request[1]
1590
2135
args = request[2]
1591
2136
kwargs = request[3]
1592
2137
1593
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1594
2138
parent_pipe.send(('data', getattr(client_object,
2139
funcname)(*args,
2140
**kwargs)))
2141
1595
2142
if command == 'getattr':
1596
2143
attrname = request[1]
1597
if callable(client_object.__getattribute__(attrname)):
1598
parent_pipe.send(('function',))
2144
if isinstance(client_object.__getattribute__(attrname),
2145
collections.Callable):
2146
parent_pipe.send(('function', ))
1599
2147
else:
1600
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2148
parent_pipe.send((
2149
'data', client_object.__getattribute__(attrname)))
1601
2150
1602
2151
if command == 'setattr':
1603
2152
attrname = request[1]
1604
2153
value = request[2]
1605
2154
setattr(client_object, attrname, value)
1606
2155
1607
2156
return True
1608
2157
1609
2158
2159
def rfc3339_duration_to_delta(duration):
2160
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2161
2162
>>> rfc3339_duration_to_delta("P7D")
2163
datetime.timedelta(7)
2164
>>> rfc3339_duration_to_delta("PT60S")
2165
datetime.timedelta(0, 60)
2166
>>> rfc3339_duration_to_delta("PT60M")
2167
datetime.timedelta(0, 3600)
2168
>>> rfc3339_duration_to_delta("PT24H")
2169
datetime.timedelta(1)
2170
>>> rfc3339_duration_to_delta("P1W")
2171
datetime.timedelta(7)
2172
>>> rfc3339_duration_to_delta("PT5M30S")
2173
datetime.timedelta(0, 330)
2174
>>> rfc3339_duration_to_delta("P1DT3M20S")
2175
datetime.timedelta(1, 200)
2176
"""
2177
2178
# Parsing an RFC 3339 duration with regular expressions is not
2179
# possible - there would have to be multiple places for the same
2180
# values, like seconds. The current code, while more esoteric, is
2181
# cleaner without depending on a parsing library. If Python had a
2182
# built-in library for parsing we would use it, but we'd like to
2183
# avoid excessive use of external libraries.
2184
2185
# New type for defining tokens, syntax, and semantics all-in-one
2186
Token = collections.namedtuple("Token", (
2187
"regexp", # To match token; if "value" is not None, must have
2188
# a "group" containing digits
2189
"value", # datetime.timedelta or None
2190
"followers")) # Tokens valid after this token
2191
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2192
# the "duration" ABNF definition in RFC 3339, Appendix A.
2193
token_end = Token(re.compile(r"$"), None, frozenset())
2194
token_second = Token(re.compile(r"(\d+)S"),
2195
datetime.timedelta(seconds=1),
2196
frozenset((token_end, )))
2197
token_minute = Token(re.compile(r"(\d+)M"),
2198
datetime.timedelta(minutes=1),
2199
frozenset((token_second, token_end)))
2200
token_hour = Token(re.compile(r"(\d+)H"),
2201
datetime.timedelta(hours=1),
2202
frozenset((token_minute, token_end)))
2203
token_time = Token(re.compile(r"T"),
2204
None,
2205
frozenset((token_hour, token_minute,
2206
token_second)))
2207
token_day = Token(re.compile(r"(\d+)D"),
2208
datetime.timedelta(days=1),
2209
frozenset((token_time, token_end)))
2210
token_month = Token(re.compile(r"(\d+)M"),
2211
datetime.timedelta(weeks=4),
2212
frozenset((token_day, token_end)))
2213
token_year = Token(re.compile(r"(\d+)Y"),
2214
datetime.timedelta(weeks=52),
2215
frozenset((token_month, token_end)))
2216
token_week = Token(re.compile(r"(\d+)W"),
2217
datetime.timedelta(weeks=1),
2218
frozenset((token_end, )))
2219
token_duration = Token(re.compile(r"P"), None,
2220
frozenset((token_year, token_month,
2221
token_day, token_time,
2222
token_week)))
2223
# Define starting values
2224
value = datetime.timedelta() # Value so far
2225
found_token = None
2226
followers = frozenset((token_duration, )) # Following valid tokens
2227
s = duration # String left to parse
2228
# Loop until end token is found
2229
while found_token is not token_end:
2230
# Search for any currently valid tokens
2231
for token in followers:
2232
match = token.regexp.match(s)
2233
if match is not None:
2234
# Token found
2235
if token.value is not None:
2236
# Value found, parse digits
2237
factor = int(match.group(1), 10)
2238
# Add to value so far
2239
value += factor * token.value
2240
# Strip token from string
2241
s = token.regexp.sub("", s, 1)
2242
# Go to found token
2243
found_token = token
2244
# Set valid next tokens
2245
followers = found_token.followers
2246
break
2247
else:
2248
# No currently valid tokens were found
2249
raise ValueError("Invalid RFC 3339 duration: {!r}"
2250
.format(duration))
2251
# End token found
2252
return value
2253
2254
1610
2255
def string_to_delta(interval):
1611
2256
"""Parse a string and return a datetime.timedelta
1612
2257
1623
2268
>>> string_to_delta('5m 30s')
1624
2269
datetime.timedelta(0, 330)
1625
2270
"""
2271
2272
try:
2273
return rfc3339_duration_to_delta(interval)
2274
except ValueError:
2275
pass
2276
1626
2277
timevalue = datetime.timedelta(0)
1627
2278
for s in interval.split():
1628
2279
try:
1629
suffix = unicode(s[-1])
2280
suffix = s[-1]
1630
2281
value = int(s[:-1])
1631
2282
if suffix == "d":
1632
2283
delta = datetime.timedelta(value)
1639
2290
elif suffix == "w":
1640
2291
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1641
2292
else:
1642
raise ValueError("Unknown suffix %r" % suffix)
1643
except (ValueError, IndexError) as e:
2293
raise ValueError("Unknown suffix {!r}".format(suffix))
2294
except IndexError as e:
1644
2295
raise ValueError(*(e.args))
1645
2296
timevalue += delta
1646
2297
return timevalue
1647
2298
1648
2299
1649
def if_nametoindex(interface):
1650
"""Call the C function if_nametoindex(), or equivalent
1651
1652
Note: This function cannot accept a unicode string."""
1653
global if_nametoindex
1654
try:
1655
if_nametoindex = (ctypes.cdll.LoadLibrary
1656
(ctypes.util.find_library("c"))
1657
.if_nametoindex)
1658
except (OSError, AttributeError):
1659
logger.warning("Doing if_nametoindex the hard way")
1660
def if_nametoindex(interface):
1661
"Get an interface index the hard way, i.e. using fcntl()"
1662
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1663
with contextlib.closing(socket.socket()) as s:
1664
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1665
struct.pack(str("16s16x"),
1666
interface))
1667
interface_index = struct.unpack(str("I"),
1668
ifreq[16:20])[0]
1669
return interface_index
1670
return if_nametoindex(interface)
1671
1672
1673
2300
def daemon(nochdir = False, noclose = False):
1674
2301
"""See daemon(3). Standard BSD Unix function.
1675
2302
1683
2310
sys.exit()
1684
2311
if not noclose:
1685
2312
# Close all standard open file descriptors
1686
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2313
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1687
2314
if not stat.S_ISCHR(os.fstat(null).st_mode):
1688
2315
raise OSError(errno.ENODEV,
1689
"%s not a character device"
1690
% os.path.devnull)
2316
"{} not a character device"
2317
.format(os.devnull))
1691
2318
os.dup2(null, sys.stdin.fileno())
1692
2319
os.dup2(null, sys.stdout.fileno())
1693
2320
os.dup2(null, sys.stderr.fileno())
1702
2329
1703
2330
parser = argparse.ArgumentParser()
1704
2331
parser.add_argument("-v", "--version", action="version",
1705
version = "%%(prog)s %s" % version,
2332
version = "%(prog)s {}".format(version),
1706
2333
help="show version number and exit")
1707
2334
parser.add_argument("-i", "--interface", metavar="IF",
1708
2335
help="Bind to interface IF")
1714
2341
help="Run self-test")
1715
2342
parser.add_argument("--debug", action="store_true",
1716
2343
help="Debug mode; run in foreground and log"
1717
" to terminal")
2344
" to terminal", default=None)
1718
2345
parser.add_argument("--debuglevel", metavar="LEVEL",
1719
2346
help="Debug level for stdout output")
1720
2347
parser.add_argument("--priority", help="GnuTLS"
1727
2354
" files")
1728
2355
parser.add_argument("--no-dbus", action="store_false",
1729
2356
dest="use_dbus", help="Do not provide D-Bus"
1730
" system bus interface")
2357
" system bus interface", default=None)
1731
2358
parser.add_argument("--no-ipv6", action="store_false",
1732
dest="use_ipv6", help="Do not use IPv6")
2359
dest="use_ipv6", help="Do not use IPv6",
2360
default=None)
2361
parser.add_argument("--no-restore", action="store_false",
2362
dest="restore", help="Do not restore stored"
2363
" state", default=None)
2364
parser.add_argument("--socket", type=int,
2365
help="Specify a file descriptor to a network"
2366
" socket to use instead of creating one")
2367
parser.add_argument("--statedir", metavar="DIR",
2368
help="Directory to save/restore state in")
2369
parser.add_argument("--foreground", action="store_true",
2370
help="Run in foreground", default=None)
2371
parser.add_argument("--no-zeroconf", action="store_false",
2372
dest="zeroconf", help="Do not use Zeroconf",
2373
default=None)
2374
1733
2375
options = parser.parse_args()
1734
2376
1735
2377
if options.check:
1736
2378
import doctest
1737
doctest.testmod()
1738
sys.exit()
2379
fail_count, test_count = doctest.testmod()
2380
sys.exit(os.EX_OK if fail_count == 0 else 1)
1739
2381
1740
2382
# Default values for config file for server-global settings
1741
2383
server_defaults = { "interface": "",
1743
2385
"port": "",
1744
2386
"debug": "False",
1745
2387
"priority":
1746
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2388
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2389
":+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
1747
2390
"servicename": "Mandos",
1748
2391
"use_dbus": "True",
1749
2392
"use_ipv6": "True",
1750
2393
"debuglevel": "",
1751
}
2394
"restore": "True",
2395
"socket": "",
2396
"statedir": "/var/lib/mandos",
2397
"foreground": "False",
2398
"zeroconf": "True",
2399
}
1752
2400
1753
2401
# Parse config file for server-global settings
1754
2402
server_config = configparser.SafeConfigParser(server_defaults)
1755
2403
del server_defaults
1756
server_config.read(os.path.join(options.configdir,
1757
"mandos.conf"))
2404
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1758
2405
# Convert the SafeConfigParser object to a dict
1759
2406
server_settings = server_config.defaults()
1760
2407
# Use the appropriate methods on the non-string config options
1761
for option in ("debug", "use_dbus", "use_ipv6"):
2408
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
1762
2409
server_settings[option] = server_config.getboolean("DEFAULT",
1763
2410
option)
1764
2411
if server_settings["port"]:
1765
2412
server_settings["port"] = server_config.getint("DEFAULT",
1766
2413
"port")
2414
if server_settings["socket"]:
2415
server_settings["socket"] = server_config.getint("DEFAULT",
2416
"socket")
2417
# Later, stdin will, and stdout and stderr might, be dup'ed
2418
# over with an opened os.devnull. But we don't want this to
2419
# happen with a supplied network socket.
2420
if 0 <= server_settings["socket"] <= 2:
2421
server_settings["socket"] = os.dup(server_settings
2422
["socket"])
1767
2423
del server_config
1768
2424
1769
2425
# Override the settings from the config file with command line
1770
2426
# options, if set.
1771
2427
for option in ("interface", "address", "port", "debug",
1772
"priority", "servicename", "configdir",
1773
"use_dbus", "use_ipv6", "debuglevel"):
2428
"priority", "servicename", "configdir", "use_dbus",
2429
"use_ipv6", "debuglevel", "restore", "statedir",
2430
"socket", "foreground", "zeroconf"):
1774
2431
value = getattr(options, option)
1775
2432
if value is not None:
1776
2433
server_settings[option] = value
1777
2434
del options
1778
2435
# Force all strings to be unicode
1779
2436
for option in server_settings.keys():
1780
if type(server_settings[option]) is str:
1781
server_settings[option] = unicode(server_settings[option])
2437
if isinstance(server_settings[option], bytes):
2438
server_settings[option] = (server_settings[option]
2439
.decode("utf-8"))
2440
# Force all boolean options to be boolean
2441
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2442
"foreground", "zeroconf"):
2443
server_settings[option] = bool(server_settings[option])
2444
# Debug implies foreground
2445
if server_settings["debug"]:
2446
server_settings["foreground"] = True
1782
2447
# Now we have our good server settings in "server_settings"
1783
2448
1784
2449
##################################################################
1785
2450
2451
if (not server_settings["zeroconf"]
2452
and not (server_settings["port"]
2453
or server_settings["socket"] != "")):
2454
parser.error("Needs port or socket to work without Zeroconf")
2455
1786
2456
# For convenience
1787
2457
debug = server_settings["debug"]
1788
2458
debuglevel = server_settings["debuglevel"]
1789
2459
use_dbus = server_settings["use_dbus"]
1790
2460
use_ipv6 = server_settings["use_ipv6"]
1791
2461
stored_state_path = os.path.join(server_settings["statedir"],
2462
stored_state_file)
2463
foreground = server_settings["foreground"]
2464
zeroconf = server_settings["zeroconf"]
2465
2466
if debug:
2467
initlogger(debug, logging.DEBUG)
2468
else:
2469
if not debuglevel:
2470
initlogger(debug)
2471
else:
2472
level = getattr(logging, debuglevel.upper())
2473
initlogger(debug, level)
2474
1792
2475
if server_settings["servicename"] != "Mandos":
1793
syslogger.setFormatter(logging.Formatter
1794
('Mandos (%s) [%%(process)d]:'
1795
' %%(levelname)s: %%(message)s'
1796
% server_settings["servicename"]))
2476
syslogger.setFormatter(
2477
logging.Formatter('Mandos ({}) [%(process)d]:'
2478
' %(levelname)s: %(message)s'.format(
2479
server_settings["servicename"])))
1797
2480
1798
2481
# Parse config file with clients
1799
client_defaults = { "timeout": "1h",
1800
"interval": "5m",
1801
"checker": "fping -q -- %%(host)s",
1802
"host": "",
1803
"approval_delay": "0s",
1804
"approval_duration": "1s",
1805
}
1806
client_config = configparser.SafeConfigParser(client_defaults)
2482
client_config = configparser.SafeConfigParser(Client
2483
.client_defaults)
1807
2484
client_config.read(os.path.join(server_settings["configdir"],
1808
2485
"clients.conf"))
1809
2486
1810
2487
global mandos_dbus_service
1811
2488
mandos_dbus_service = None
1812
2489
1813
tcp_server = MandosServer((server_settings["address"],
1814
server_settings["port"]),
1815
ClientHandler,
1816
interface=(server_settings["interface"]
1817
or None),
1818
use_ipv6=use_ipv6,
1819
gnutls_priority=
1820
server_settings["priority"],
1821
use_dbus=use_dbus)
1822
if not debug:
1823
pidfilename = "/var/run/mandos.pid"
2490
socketfd = None
2491
if server_settings["socket"] != "":
2492
socketfd = server_settings["socket"]
2493
tcp_server = MandosServer(
2494
(server_settings["address"], server_settings["port"]),
2495
ClientHandler,
2496
interface=(server_settings["interface"] or None),
2497
use_ipv6=use_ipv6,
2498
gnutls_priority=server_settings["priority"],
2499
use_dbus=use_dbus,
2500
socketfd=socketfd)
2501
if not foreground:
2502
pidfilename = "/run/mandos.pid"
2503
if not os.path.isdir("/run/."):
2504
pidfilename = "/var/run/mandos.pid"
2505
pidfile = None
1824
2506
try:
1825
pidfile = open(pidfilename, "w")
1826
except IOError:
1827
logger.error("Could not open file %r", pidfilename)
2507
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2508
except IOError as e:
2509
logger.error("Could not open file %r", pidfilename,
2510
exc_info=e)
1828
2511
1829
try:
1830
uid = pwd.getpwnam("_mandos").pw_uid
1831
gid = pwd.getpwnam("_mandos").pw_gid
1832
except KeyError:
2512
for name in ("_mandos", "mandos", "nobody"):
1833
2513
try:
1834
uid = pwd.getpwnam("mandos").pw_uid
1835
gid = pwd.getpwnam("mandos").pw_gid
2514
uid = pwd.getpwnam(name).pw_uid
2515
gid = pwd.getpwnam(name).pw_gid
2516
break
1836
2517
except KeyError:
1837
try:
1838
uid = pwd.getpwnam("nobody").pw_uid
1839
gid = pwd.getpwnam("nobody").pw_gid
1840
except KeyError:
1841
uid = 65534
1842
gid = 65534
2518
continue
2519
else:
2520
uid = 65534
2521
gid = 65534
1843
2522
try:
1844
2523
os.setgid(gid)
1845
2524
os.setuid(uid)
1846
2525
except OSError as error:
1847
if error[0] != errno.EPERM:
1848
raise error
2526
if error.errno != errno.EPERM:
2527
raise
1849
2528
1850
if not debug and not debuglevel:
1851
syslogger.setLevel(logging.WARNING)
1852
console.setLevel(logging.WARNING)
1853
if debuglevel:
1854
level = getattr(logging, debuglevel.upper())
1855
syslogger.setLevel(level)
1856
console.setLevel(level)
1857
1858
2529
if debug:
1859
2530
# Enable all possible GnuTLS debugging
1860
2531
1866
2537
def debug_gnutls(level, string):
1867
2538
logger.debug("GnuTLS: %s", string[:-1])
1868
2539
1869
(gnutls.library.functions
1870
.gnutls_global_set_log_function(debug_gnutls))
2540
gnutls.library.functions.gnutls_global_set_log_function(
2541
debug_gnutls)
1871
2542
1872
2543
# Redirect stdin so all checkers get /dev/null
1873
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2544
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1874
2545
os.dup2(null, sys.stdin.fileno())
1875
2546
if null > 2:
1876
2547
os.close(null)
1877
else:
1878
# No console logging
1879
logger.removeHandler(console)
1880
2548
1881
2549
# Need to fork before connecting to D-Bus
1882
if not debug:
2550
if not foreground:
1883
2551
# Close all input and output, do double fork, etc.
1884
2552
daemon()
1885
2553
2554
# multiprocessing will use threads, so before we use gobject we
2555
# need to inform gobject that threads will be used.
2556
gobject.threads_init()
2557
1886
2558
global main_loop
1887
2559
# From the Avahi example code
1888
DBusGMainLoop(set_as_default=True )
2560
DBusGMainLoop(set_as_default=True)
1889
2561
main_loop = gobject.MainLoop()
1890
2562
bus = dbus.SystemBus()
1891
2563
# End of Avahi example code
1892
2564
if use_dbus:
1893
2565
try:
1894
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1895
bus, do_not_queue=True)
1896
except dbus.exceptions.NameExistsException as e:
1897
logger.error(unicode(e) + ", disabling D-Bus")
2566
bus_name = dbus.service.BusName("se.recompile.Mandos",
2567
bus,
2568
do_not_queue=True)
2569
old_bus_name = dbus.service.BusName(
2570
"se.bsnet.fukt.Mandos", bus,
2571
do_not_queue=True)
2572
except dbus.exceptions.DBusException as e:
2573
logger.error("Disabling D-Bus:", exc_info=e)
1898
2574
use_dbus = False
1899
2575
server_settings["use_dbus"] = False
1900
2576
tcp_server.use_dbus = False
1901
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1902
service = AvahiService(name = server_settings["servicename"],
1903
servicetype = "_mandos._tcp",
1904
protocol = protocol, bus = bus)
1905
if server_settings["interface"]:
1906
service.interface = (if_nametoindex
1907
(str(server_settings["interface"])))
2577
if zeroconf:
2578
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2579
service = AvahiServiceToSyslog(
2580
name = server_settings["servicename"],
2581
servicetype = "_mandos._tcp",
2582
protocol = protocol,
2583
bus = bus)
2584
if server_settings["interface"]:
2585
service.interface = if_nametoindex(
2586
server_settings["interface"].encode("utf-8"))
1908
2587
1909
2588
global multiprocessing_manager
1910
2589
multiprocessing_manager = multiprocessing.Manager()
1912
2591
client_class = Client
1913
2592
if use_dbus:
1914
2593
client_class = functools.partial(ClientDBus, bus = bus)
1915
def client_config_items(config, section):
1916
special_settings = {
1917
"approved_by_default":
1918
lambda: config.getboolean(section,
1919
"approved_by_default"),
1920
}
1921
for name, value in config.items(section):
2594
2595
client_settings = Client.config_parser(client_config)
2596
old_client_settings = {}
2597
clients_data = {}
2598
2599
# This is used to redirect stdout and stderr for checker processes
2600
global wnull
2601
wnull = open(os.devnull, "w") # A writable /dev/null
2602
# Only used if server is running in foreground but not in debug
2603
# mode
2604
if debug or not foreground:
2605
wnull.close()
2606
2607
# Get client data and settings from last running state.
2608
if server_settings["restore"]:
2609
try:
2610
with open(stored_state_path, "rb") as stored_state:
2611
clients_data, old_client_settings = pickle.load(
2612
stored_state)
2613
os.remove(stored_state_path)
2614
except IOError as e:
2615
if e.errno == errno.ENOENT:
2616
logger.warning("Could not load persistent state:"
2617
" {}".format(os.strerror(e.errno)))
2618
else:
2619
logger.critical("Could not load persistent state:",
2620
exc_info=e)
2621
raise
2622
except EOFError as e:
2623
logger.warning("Could not load persistent state: "
2624
"EOFError:",
2625
exc_info=e)
2626
2627
with PGPEngine() as pgp:
2628
for client_name, client in clients_data.items():
2629
# Skip removed clients
2630
if client_name not in client_settings:
2631
continue
2632
2633
# Decide which value to use after restoring saved state.
2634
# We have three different values: Old config file,
2635
# new config file, and saved state.
2636
# New config value takes precedence if it differs from old
2637
# config value, otherwise use saved state.
2638
for name, value in client_settings[client_name].items():
2639
try:
2640
# For each value in new config, check if it
2641
# differs from the old config value (Except for
2642
# the "secret" attribute)
2643
if (name != "secret"
2644
and (value !=
2645
old_client_settings[client_name][name])):
2646
client[name] = value
2647
except KeyError:
2648
pass
2649
2650
# Clients who has passed its expire date can still be
2651
# enabled if its last checker was successful. A Client
2652
# whose checker succeeded before we stored its state is
2653
# assumed to have successfully run all checkers during
2654
# downtime.
2655
if client["enabled"]:
2656
if datetime.datetime.utcnow() >= client["expires"]:
2657
if not client["last_checked_ok"]:
2658
logger.warning(
2659
"disabling client {} - Client never "
2660
"performed a successful checker".format(
2661
client_name))
2662
client["enabled"] = False
2663
elif client["last_checker_status"] != 0:
2664
logger.warning(
2665
"disabling client {} - Client last"
2666
" checker failed with error code"
2667
" {}".format(
2668
client_name,
2669
client["last_checker_status"]))
2670
client["enabled"] = False
2671
else:
2672
client["expires"] = (
2673
datetime.datetime.utcnow()
2674
+ client["timeout"])
2675
logger.debug("Last checker succeeded,"
2676
" keeping {} enabled".format(
2677
client_name))
1922
2678
try:
1923
yield (name, special_settings[name]())
1924
except KeyError:
1925
yield (name, value)
1926
1927
tcp_server.clients.update(set(
1928
client_class(name = section,
1929
config= dict(client_config_items(
1930
client_config, section)))
1931
for section in client_config.sections()))
2679
client["secret"] = pgp.decrypt(
2680
client["encrypted_secret"],
2681
client_settings[client_name]["secret"])
2682
except PGPError:
2683
# If decryption fails, we use secret from new settings
2684
logger.debug("Failed to decrypt {} old secret".format(
2685
client_name))
2686
client["secret"] = (client_settings[client_name]
2687
["secret"])
2688
2689
# Add/remove clients based on new changes made to config
2690
for client_name in (set(old_client_settings)
2691
- set(client_settings)):
2692
del clients_data[client_name]
2693
for client_name in (set(client_settings)
2694
- set(old_client_settings)):
2695
clients_data[client_name] = client_settings[client_name]
2696
2697
# Create all client objects
2698
for client_name, client in clients_data.items():
2699
tcp_server.clients[client_name] = client_class(
2700
name = client_name,
2701
settings = client,
2702
server_settings = server_settings)
2703
1932
2704
if not tcp_server.clients:
1933
2705
logger.warning("No clients defined")
1934
1935
if not debug:
1936
try:
1937
with pidfile:
1938
pid = os.getpid()
1939
pidfile.write(str(pid) + "\n".encode("utf-8"))
1940
del pidfile
1941
except IOError:
1942
logger.error("Could not write to file %r with PID %d",
1943
pidfilename, pid)
1944
except NameError:
1945
# "pidfile" was never created
1946
pass
2706
2707
if not foreground:
2708
if pidfile is not None:
2709
pid = os.getpid()
2710
try:
2711
with pidfile:
2712
print(pid, file=pidfile)
2713
except IOError:
2714
logger.error("Could not write to file %r with PID %d",
2715
pidfilename, pid)
2716
del pidfile
1947
2717
del pidfilename
1948
1949
signal.signal(signal.SIGINT, signal.SIG_IGN)
1950
2718
1951
2719
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1952
2720
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1953
2721
1954
2722
if use_dbus:
1955
class MandosDBusService(dbus.service.Object):
2723
2724
@alternate_dbus_interfaces(
2725
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2726
class MandosDBusService(DBusObjectWithProperties):
1956
2727
"""A D-Bus proxy object"""
2728
1957
2729
def __init__(self):
1958
2730
dbus.service.Object.__init__(self, bus, "/")
1959
_interface = "se.bsnet.fukt.Mandos"
2731
2732
_interface = "se.recompile.Mandos"
2733
2734
@dbus_interface_annotations(_interface)
2735
def _foo(self):
2736
return {
2737
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2738
"false" }
1960
2739
1961
2740
@dbus.service.signal(_interface, signature="o")
1962
2741
def ClientAdded(self, objpath):
1976
2755
@dbus.service.method(_interface, out_signature="ao")
1977
2756
def GetAllClients(self):
1978
2757
"D-Bus method"
1979
return dbus.Array(c.dbus_object_path
1980
for c in tcp_server.clients)
2758
return dbus.Array(c.dbus_object_path for c in
2759
tcp_server.clients.itervalues())
1981
2760
1982
2761
@dbus.service.method(_interface,
1983
2762
out_signature="a{oa{sv}}")
1984
2763
def GetAllClientsWithProperties(self):
1985
2764
"D-Bus method"
1986
2765
return dbus.Dictionary(
1987
((c.dbus_object_path, c.GetAll(""))
1988
for c in tcp_server.clients),
2766
{ c.dbus_object_path: c.GetAll("")
2767
for c in tcp_server.clients.itervalues() },
1989
2768
signature="oa{sv}")
1990
2769
1991
2770
@dbus.service.method(_interface, in_signature="o")
1992
2771
def RemoveClient(self, object_path):
1993
2772
"D-Bus method"
1994
for c in tcp_server.clients:
2773
for c in tcp_server.clients.itervalues():
1995
2774
if c.dbus_object_path == object_path:
1996
tcp_server.clients.remove(c)
2775
del tcp_server.clients[c.name]
1997
2776
c.remove_from_connection()
1998
2777
# Don't signal anything except ClientRemoved
1999
2778
c.disable(quiet=True)
2008
2787
2009
2788
def cleanup():
2010
2789
"Cleanup function; run on exit"
2011
service.cleanup()
2012
2790
if zeroconf:
2791
service.cleanup()
2792
2793
multiprocessing.active_children()
2794
wnull.close()
2795
if not (tcp_server.clients or client_settings):
2796
return
2797
2798
# Store client before exiting. Secrets are encrypted with key
2799
# based on what config file has. If config file is
2800
# removed/edited, old secret will thus be unrecovable.
2801
clients = {}
2802
with PGPEngine() as pgp:
2803
for client in tcp_server.clients.itervalues():
2804
key = client_settings[client.name]["secret"]
2805
client.encrypted_secret = pgp.encrypt(client.secret,
2806
key)
2807
client_dict = {}
2808
2809
# A list of attributes that can not be pickled
2810
# + secret.
2811
exclude = { "bus", "changedstate", "secret",
2812
"checker", "server_settings" }
2813
for name, typ in inspect.getmembers(dbus.service
2814
.Object):
2815
exclude.add(name)
2816
2817
client_dict["encrypted_secret"] = (client
2818
.encrypted_secret)
2819
for attr in client.client_structure:
2820
if attr not in exclude:
2821
client_dict[attr] = getattr(client, attr)
2822
2823
clients[client.name] = client_dict
2824
del client_settings[client.name]["secret"]
2825
2826
try:
2827
with tempfile.NamedTemporaryFile(
2828
mode='wb',
2829
suffix=".pickle",
2830
prefix='clients-',
2831
dir=os.path.dirname(stored_state_path),
2832
delete=False) as stored_state:
2833
pickle.dump((clients, client_settings), stored_state)
2834
tempname = stored_state.name
2835
os.rename(tempname, stored_state_path)
2836
except (IOError, OSError) as e:
2837
if not debug:
2838
try:
2839
os.remove(tempname)
2840
except NameError:
2841
pass
2842
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2843
logger.warning("Could not save persistent state: {}"
2844
.format(os.strerror(e.errno)))
2845
else:
2846
logger.warning("Could not save persistent state:",
2847
exc_info=e)
2848
raise
2849
2850
# Delete all clients, and settings from config
2013
2851
while tcp_server.clients:
2014
client = tcp_server.clients.pop()
2852
name, client = tcp_server.clients.popitem()
2015
2853
if use_dbus:
2016
2854
client.remove_from_connection()
2017
client.disable_hook = None
2018
2855
# Don't signal anything except ClientRemoved
2019
2856
client.disable(quiet=True)
2020
2857
if use_dbus:
2021
2858
# Emit D-Bus signal
2022
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2023
client.name)
2859
mandos_dbus_service.ClientRemoved(
2860
client.dbus_object_path, client.name)
2861
client_settings.clear()
2024
2862
2025
2863
atexit.register(cleanup)
2026
2864
2027
for client in tcp_server.clients:
2865
for client in tcp_server.clients.itervalues():
2028
2866
if use_dbus:
2029
2867
# Emit D-Bus signal
2030
2868
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2031
client.enable()
2869
# Need to initiate checking of clients
2870
if client.enabled:
2871
client.init_checker()
2032
2872
2033
2873
tcp_server.enable()
2034
2874
tcp_server.server_activate()
2035
2875
2036
2876
# Find out what port we got
2037
service.port = tcp_server.socket.getsockname()[1]
2877
if zeroconf:
2878
service.port = tcp_server.socket.getsockname()[1]
2038
2879
if use_ipv6:
2039
2880
logger.info("Now listening on address %r, port %d,"
2040
" flowinfo %d, scope_id %d"
2041
% tcp_server.socket.getsockname())
2881
" flowinfo %d, scope_id %d",
2882
*tcp_server.socket.getsockname())
2042
2883
else: # IPv4
2043
logger.info("Now listening on address %r, port %d"
2044
% tcp_server.socket.getsockname())
2884
logger.info("Now listening on address %r, port %d",
2885
*tcp_server.socket.getsockname())
2045
2886
2046
2887
#service.interface = tcp_server.socket.getsockname()[3]
2047
2888
2048
2889
try:
2049
# From the Avahi example code
2050
try:
2051
service.activate()
2052
except dbus.exceptions.DBusException as error:
2053
logger.critical("DBusException: %s", error)
2054
cleanup()
2055
sys.exit(1)
2056
# End of Avahi example code
2890
if zeroconf:
2891
# From the Avahi example code
2892
try:
2893
service.activate()
2894
except dbus.exceptions.DBusException as error:
2895
logger.critical("D-Bus Exception", exc_info=error)
2896
cleanup()
2897
sys.exit(1)
2898
# End of Avahi example code
2057
2899
2058
2900
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2059
2901
lambda *args, **kwargs:
2063
2905
logger.debug("Starting main loop")
2064
2906
main_loop.run()
2065
2907
except AvahiError as error:
2066
logger.critical("AvahiError: %s", error)
2908
logger.critical("Avahi Error", exc_info=error)
2067
2909
cleanup()
2068
2910
sys.exit(1)
2069
2911
except KeyboardInterrupt:
2074
2916
# Must run before the D-Bus bus name gets deregistered
2075
2917
cleanup()
2076
2918
2919
2077
2920
if __name__ == '__main__':
2078
2921
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0