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- Committer: Teddy Hogeborn
- Date: 2011-08-08 21:12:37 UTC
- Revision ID: teddy@fukt.bsnet.se-20110808211237-jejsz5brjytrjot8
* Makefile (DOCS): Added "intro.8mandos".
(intro.8mandos, intro.8mandos.xhtml): New.
* README: Replaced text with link, reference and short summary.
* intro.xml: New.
* mandos-clients.conf.xml (SEE ALSO): Added "intro(8mandos)".
* mandos-ctl.xml (SEE ALSO): - '' -
* mandos-keygen.xml (SEE ALSO): - '' -
* mandos-monitor.xml (SEE ALSO): - '' -
* mandos.conf.xml (SEE ALSO): - '' -
* mandos.xml (SEE ALSO): - '' -
* plugin-runner.xml (SEE ALSO): - '' -
* plugins.d/askpass-fifo.xml (SEE ALSO): - '' -
* plugins.d/mandos-client.xml (SEE ALSO): - '' -
* plugins.d/password-prompt.xml (SEE ALSO): - '' -
* plugins.d/plymouth.xml (SEE ALSO): - '' -
* plugins.d/splashy.xml (SEE ALSO): - '' -
* plugins.d/usplash.xml (SEE ALSO): - '' -
(intro.8mandos, intro.8mandos.xhtml): New.
* README: Replaced text with link, reference and short summary.
* intro.xml: New.
* mandos-clients.conf.xml (SEE ALSO): Added "intro(8mandos)".
* mandos-ctl.xml (SEE ALSO): - '' -
* mandos-keygen.xml (SEE ALSO): - '' -
* mandos-monitor.xml (SEE ALSO): - '' -
* mandos.conf.xml (SEE ALSO): - '' -
* mandos.xml (SEE ALSO): - '' -
* plugin-runner.xml (SEE ALSO): - '' -
* plugins.d/askpass-fifo.xml (SEE ALSO): - '' -
* plugins.d/mandos-client.xml (SEE ALSO): - '' -
* plugins.d/password-prompt.xml (SEE ALSO): - '' -
* plugins.d/plymouth.xml (SEE ALSO): - '' -
* plugins.d/splashy.xml (SEE ALSO): - '' -
* plugins.d/usplash.xml (SEE ALSO): - '' -
- files removed:
- debian/mandos-client.examples
- debian/upstream
- network-hooks.d
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python2.7
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
30
#
31
# Contact the authors at <mandos@recompile.se>.
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
#
33
33
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
37
import SocketServer as socketserver
43
38
import socket
44
39
import argparse
45
40
import datetime
50
45
import gnutls.library.functions
51
46
import gnutls.library.constants
52
47
import gnutls.library.types
53
try:
54
import ConfigParser as configparser
55
except ImportError:
56
import configparser
48
import ConfigParser as configparser
57
49
import sys
58
50
import re
59
51
import os
68
60
import struct
69
61
import fcntl
70
62
import functools
71
try:
72
import cPickle as pickle
73
except ImportError:
74
import pickle
63
import cPickle as pickle
75
64
import multiprocessing
76
import types
77
import binascii
78
import tempfile
79
import itertools
80
import collections
81
65
82
66
import dbus
83
67
import dbus.service
84
try:
85
import gobject
86
except ImportError:
87
from gi.repository import GObject as gobject
68
import gobject
88
69
import avahi
89
70
from dbus.mainloop.glib import DBusGMainLoop
90
71
import ctypes
100
81
except ImportError:
101
82
SO_BINDTODEVICE = None
102
83
103
if sys.version_info.major == 2:
104
str = unicode
105
106
version = "1.6.9"
107
stored_state_file = "clients.pickle"
108
109
logger = logging.getLogger()
110
syslogger = None
111
112
try:
113
if_nametoindex = ctypes.cdll.LoadLibrary(
114
ctypes.util.find_library("c")).if_nametoindex
115
except (OSError, AttributeError):
116
117
def if_nametoindex(interface):
118
"Get an interface index the hard way, i.e. using fcntl()"
119
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
120
with contextlib.closing(socket.socket()) as s:
121
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
122
struct.pack(b"16s16x", interface))
123
interface_index = struct.unpack("I", ifreq[16:20])[0]
124
return interface_index
125
126
127
def initlogger(debug, level=logging.WARNING):
128
"""init logger and add loglevel"""
129
130
global syslogger
131
syslogger = (logging.handlers.SysLogHandler(
132
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
133
address = "/dev/log"))
134
syslogger.setFormatter(logging.Formatter
135
('Mandos [%(process)d]: %(levelname)s:'
136
' %(message)s'))
137
logger.addHandler(syslogger)
138
139
if debug:
140
console = logging.StreamHandler()
141
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
142
' [%(process)d]:'
143
' %(levelname)s:'
144
' %(message)s'))
145
logger.addHandler(console)
146
logger.setLevel(level)
147
148
149
class PGPError(Exception):
150
"""Exception if encryption/decryption fails"""
151
pass
152
153
154
class PGPEngine(object):
155
"""A simple class for OpenPGP symmetric encryption & decryption"""
156
157
def __init__(self):
158
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
159
self.gnupgargs = ['--batch',
160
'--home', self.tempdir,
161
'--force-mdc',
162
'--quiet',
163
'--no-use-agent']
164
165
def __enter__(self):
166
return self
167
168
def __exit__(self, exc_type, exc_value, traceback):
169
self._cleanup()
170
return False
171
172
def __del__(self):
173
self._cleanup()
174
175
def _cleanup(self):
176
if self.tempdir is not None:
177
# Delete contents of tempdir
178
for root, dirs, files in os.walk(self.tempdir,
179
topdown = False):
180
for filename in files:
181
os.remove(os.path.join(root, filename))
182
for dirname in dirs:
183
os.rmdir(os.path.join(root, dirname))
184
# Remove tempdir
185
os.rmdir(self.tempdir)
186
self.tempdir = None
187
188
def password_encode(self, password):
189
# Passphrase can not be empty and can not contain newlines or
190
# NUL bytes. So we prefix it and hex encode it.
191
encoded = b"mandos" + binascii.hexlify(password)
192
if len(encoded) > 2048:
193
# GnuPG can't handle long passwords, so encode differently
194
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
195
.replace(b"\n", b"\\n")
196
.replace(b"\0", b"\\x00"))
197
return encoded
198
199
def encrypt(self, data, password):
200
passphrase = self.password_encode(password)
201
with tempfile.NamedTemporaryFile(
202
dir=self.tempdir) as passfile:
203
passfile.write(passphrase)
204
passfile.flush()
205
proc = subprocess.Popen(['gpg', '--symmetric',
206
'--passphrase-file',
207
passfile.name]
208
+ self.gnupgargs,
209
stdin = subprocess.PIPE,
210
stdout = subprocess.PIPE,
211
stderr = subprocess.PIPE)
212
ciphertext, err = proc.communicate(input = data)
213
if proc.returncode != 0:
214
raise PGPError(err)
215
return ciphertext
216
217
def decrypt(self, data, password):
218
passphrase = self.password_encode(password)
219
with tempfile.NamedTemporaryFile(
220
dir = self.tempdir) as passfile:
221
passfile.write(passphrase)
222
passfile.flush()
223
proc = subprocess.Popen(['gpg', '--decrypt',
224
'--passphrase-file',
225
passfile.name]
226
+ self.gnupgargs,
227
stdin = subprocess.PIPE,
228
stdout = subprocess.PIPE,
229
stderr = subprocess.PIPE)
230
decrypted_plaintext, err = proc.communicate(input = data)
231
if proc.returncode != 0:
232
raise PGPError(err)
233
return decrypted_plaintext
234
84
85
version = "1.3.1"
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)
235
102
236
103
class AvahiError(Exception):
237
104
def __init__(self, value, *args, **kwargs):
238
105
self.value = value
239
return super(AvahiError, self).__init__(value, *args,
240
**kwargs)
241
106
super(AvahiError, self).__init__(value, *args, **kwargs)
107
def __unicode__(self):
108
return unicode(repr(self.value))
242
109
243
110
class AvahiServiceError(AvahiError):
244
111
pass
245
112
246
247
113
class AvahiGroupError(AvahiError):
248
114
pass
249
115
256
122
Used to optionally bind to the specified interface.
257
123
name: string; Example: 'Mandos'
258
124
type: string; Example: '_mandos._tcp'.
259
See <https://www.iana.org/assignments/service-names-port-numbers>
125
See <http://www.dns-sd.org/ServiceTypes.html>
260
126
port: integer; what port to announce
261
127
TXT: list of strings; TXT record for the service
262
128
domain: string; Domain to publish on, default to .local if empty.
268
134
server: D-Bus Server
269
135
bus: dbus.SystemBus()
270
136
"""
271
272
def __init__(self,
273
interface = avahi.IF_UNSPEC,
274
name = None,
275
servicetype = None,
276
port = None,
277
TXT = None,
278
domain = "",
279
host = "",
280
max_renames = 32768,
281
protocol = avahi.PROTO_UNSPEC,
282
bus = None):
137
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
138
servicetype = None, port = None, TXT = None,
139
domain = "", host = "", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
283
141
self.interface = interface
284
142
self.name = name
285
143
self.type = servicetype
294
152
self.server = None
295
153
self.bus = bus
296
154
self.entry_group_state_changed_match = None
297
298
def rename(self, remove=True):
155
def rename(self):
299
156
"""Derived from the Avahi example code"""
300
157
if self.rename_count >= self.max_renames:
301
158
logger.critical("No suitable Zeroconf service name found"
302
159
" after %i retries, exiting.",
303
160
self.rename_count)
304
161
raise AvahiServiceError("Too many renames")
305
self.name = str(
306
self.server.GetAlternativeServiceName(self.name))
307
self.rename_count += 1
162
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
308
163
logger.info("Changing Zeroconf service name to %r ...",
309
164
self.name)
310
if remove:
311
self.remove()
165
syslogger.setFormatter(logging.Formatter
166
('Mandos (%s) [%%(process)d]:'
167
' %%(levelname)s: %%(message)s'
168
% self.name))
169
self.remove()
312
170
try:
313
171
self.add()
314
172
except dbus.exceptions.DBusException as error:
315
if (error.get_dbus_name()
316
== "org.freedesktop.Avahi.CollisionError"):
317
logger.info("Local Zeroconf service name collision.")
318
return self.rename(remove=False)
319
else:
320
logger.critical("D-Bus Exception", exc_info=error)
321
self.cleanup()
322
os._exit(1)
323
173
logger.critical("DBusException: %s", error)
174
self.cleanup()
175
os._exit(1)
176
self.rename_count += 1
324
177
def remove(self):
325
178
"""Derived from the Avahi example code"""
326
179
if self.entry_group_state_changed_match is not None:
328
181
self.entry_group_state_changed_match = None
329
182
if self.group is not None:
330
183
self.group.Reset()
331
332
184
def add(self):
333
185
"""Derived from the Avahi example code"""
334
186
self.remove()
339
191
avahi.DBUS_INTERFACE_ENTRY_GROUP)
340
192
self.entry_group_state_changed_match = (
341
193
self.group.connect_to_signal(
342
'StateChanged', self.entry_group_state_changed))
194
'StateChanged', self .entry_group_state_changed))
343
195
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
344
196
self.name, self.type)
345
197
self.group.AddService(
351
203
dbus.UInt16(self.port),
352
204
avahi.string_array_to_txt_array(self.TXT))
353
205
self.group.Commit()
354
355
206
def entry_group_state_changed(self, state, error):
356
207
"""Derived from the Avahi example code"""
357
208
logger.debug("Avahi entry group state change: %i", state)
363
214
self.rename()
364
215
elif state == avahi.ENTRY_GROUP_FAILURE:
365
216
logger.critical("Avahi: Error in group state changed %s",
366
str(error))
367
raise AvahiGroupError("State changed: {!s}".format(error))
368
217
unicode(error))
218
raise AvahiGroupError("State changed: %s"
219
% unicode(error))
369
220
def cleanup(self):
370
221
"""Derived from the Avahi example code"""
371
222
if self.group is not None:
372
223
try:
373
224
self.group.Free()
374
225
except (dbus.exceptions.UnknownMethodException,
375
dbus.exceptions.DBusException):
226
dbus.exceptions.DBusException) as e:
376
227
pass
377
228
self.group = None
378
229
self.remove()
379
380
230
def server_state_changed(self, state, error=None):
381
231
"""Derived from the Avahi example code"""
382
232
logger.debug("Avahi server state change: %i", state)
383
bad_states = {
384
avahi.SERVER_INVALID: "Zeroconf server invalid",
385
avahi.SERVER_REGISTERING: None,
386
avahi.SERVER_COLLISION: "Zeroconf server name collision",
387
avahi.SERVER_FAILURE: "Zeroconf server failure",
388
}
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" }
389
240
if state in bad_states:
390
241
if bad_states[state] is not None:
391
242
if error is None:
400
251
logger.debug("Unknown state: %r", state)
401
252
else:
402
253
logger.debug("Unknown state: %r: %r", state, error)
403
404
254
def activate(self):
405
255
"""Derived from the Avahi example code"""
406
256
if self.server is None:
410
260
follow_name_owner_changes=True),
411
261
avahi.DBUS_INTERFACE_SERVER)
412
262
self.server.connect_to_signal("StateChanged",
413
self.server_state_changed)
263
self.server_state_changed)
414
264
self.server_state_changed(self.server.GetState())
415
265
416
266
417
class AvahiServiceToSyslog(AvahiService):
418
def rename(self, *args, **kwargs):
419
"""Add the new name to the syslog messages"""
420
ret = AvahiService.rename(self, *args, **kwargs)
421
syslogger.setFormatter(logging.Formatter(
422
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
423
.format(self.name)))
424
return ret
425
426
def subprocess_call_pipe(connection, # : multiprocessing.Connection
427
*args, **kwargs):
428
"""This function is meant to be called by multiprocessing.Process
429
430
This function runs a synchronous subprocess.call(), and writes the
431
resulting return code on the provided multiprocessing.Connection.
432
"""
433
connection.send(subprocess.call(*args, **kwargs))
434
connection.close()
435
436
267
class Client(object):
437
268
"""A representation of a client host served by this server.
438
269
439
270
Attributes:
440
approved: bool(); 'None' if not yet approved/disapproved
271
_approved: bool(); 'None' if not yet approved/disapproved
441
272
approval_delay: datetime.timedelta(); Time to wait for approval
442
273
approval_duration: datetime.timedelta(); Duration of one approval
443
274
checker: subprocess.Popen(); a running checker process used
450
281
instance %(name)s can be used in the command.
451
282
checker_initiator_tag: a gobject event source tag, or None
452
283
created: datetime.datetime(); (UTC) object creation
453
client_structure: Object describing what attributes a client has
454
and is used for storing the client at exit
455
284
current_checker_command: string; current running checker_command
285
disable_hook: If set, called by disable() as disable_hook(self)
456
286
disable_initiator_tag: a gobject event source tag, or None
457
287
enabled: bool()
458
288
fingerprint: string (40 or 32 hexadecimal digits); used to
461
291
interval: datetime.timedelta(); How often to start a new checker
462
292
last_approval_request: datetime.datetime(); (UTC) or None
463
293
last_checked_ok: datetime.datetime(); (UTC) or None
464
last_checker_status: integer between 0 and 255 reflecting exit
465
status of last checker. -1 reflects crashed
466
checker, -2 means no checker completed yet.
467
last_checker_signal: The signal which killed the last checker, if
468
last_checker_status is -1
469
last_enabled: datetime.datetime(); (UTC) or None
294
last_enabled: datetime.datetime(); (UTC)
470
295
name: string; from the config file, used in log messages and
471
296
D-Bus identifiers
472
297
secret: bytestring; sent verbatim (over TLS) to client
473
298
timeout: datetime.timedelta(); How long from last_checked_ok
474
299
until this client is disabled
475
extended_timeout: extra long timeout when secret has been sent
476
300
runtime_expansions: Allowed attributes for runtime expansion.
477
expires: datetime.datetime(); time (UTC) when a client will be
478
disabled, or None
479
server_settings: The server_settings dict from main()
480
301
"""
481
302
482
303
runtime_expansions = ("approval_delay", "approval_duration",
483
"created", "enabled", "expires",
484
"fingerprint", "host", "interval",
485
"last_approval_request", "last_checked_ok",
304
"created", "enabled", "fingerprint",
305
"host", "interval", "last_checked_ok",
486
306
"last_enabled", "name", "timeout")
487
client_defaults = {
488
"timeout": "PT5M",
489
"extended_timeout": "PT15M",
490
"interval": "PT2M",
491
"checker": "fping -q -- %%(host)s",
492
"host": "",
493
"approval_delay": "PT0S",
494
"approval_duration": "PT1S",
495
"approved_by_default": "True",
496
"enabled": "True",
497
}
498
307
499
308
@staticmethod
500
def config_parser(config):
501
"""Construct a new dict of client settings of this form:
502
{ client_name: {setting_name: value, ...}, ...}
503
with exceptions for any special settings as defined above.
504
NOTE: Must be a pure function. Must return the same result
505
value given the same arguments.
506
"""
507
settings = {}
508
for client_name in config.sections():
509
section = dict(config.items(client_name))
510
client = settings[client_name] = {}
511
512
client["host"] = section["host"]
513
# Reformat values from string types to Python types
514
client["approved_by_default"] = config.getboolean(
515
client_name, "approved_by_default")
516
client["enabled"] = config.getboolean(client_name,
517
"enabled")
518
519
# Uppercase and remove spaces from fingerprint for later
520
# comparison purposes with return value from the
521
# fingerprint() function
522
client["fingerprint"] = (section["fingerprint"].upper()
523
.replace(" ", ""))
524
if "secret" in section:
525
client["secret"] = section["secret"].decode("base64")
526
elif "secfile" in section:
527
with open(os.path.expanduser(os.path.expandvars
528
(section["secfile"])),
529
"rb") as secfile:
530
client["secret"] = secfile.read()
531
else:
532
raise TypeError("No secret or secfile for section {}"
533
.format(section))
534
client["timeout"] = string_to_delta(section["timeout"])
535
client["extended_timeout"] = string_to_delta(
536
section["extended_timeout"])
537
client["interval"] = string_to_delta(section["interval"])
538
client["approval_delay"] = string_to_delta(
539
section["approval_delay"])
540
client["approval_duration"] = string_to_delta(
541
section["approval_duration"])
542
client["checker_command"] = section["checker"]
543
client["last_approval_request"] = None
544
client["last_checked_ok"] = None
545
client["last_checker_status"] = -2
546
547
return settings
548
549
def __init__(self, settings, name = None, server_settings=None):
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."""
550
330
self.name = name
551
if server_settings is None:
552
server_settings = {}
553
self.server_settings = server_settings
554
# adding all client settings
555
for setting, value in settings.items():
556
setattr(self, setting, value)
557
558
if self.enabled:
559
if not hasattr(self, "last_enabled"):
560
self.last_enabled = datetime.datetime.utcnow()
561
if not hasattr(self, "expires"):
562
self.expires = (datetime.datetime.utcnow()
563
+ self.timeout)
564
else:
565
self.last_enabled = None
566
self.expires = None
567
331
if config is None:
332
config = {}
568
333
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(" ", ""))
569
339
logger.debug(" Fingerprint: %s", self.fingerprint)
570
self.created = settings.get("created",
571
datetime.datetime.utcnow())
572
573
# attributes specific for this server instance
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
574
359
self.checker = None
575
360
self.checker_initiator_tag = None
576
361
self.disable_initiator_tag = None
577
362
self.checker_callback_tag = None
363
self.checker_command = config["checker"]
578
364
self.current_checker_command = None
579
self.approved = None
365
self.last_connect = None
366
self._approved = None
367
self.approved_by_default = config.get("approved_by_default",
368
True)
580
369
self.approvals_pending = 0
581
self.changedstate = multiprocessing_manager.Condition(
582
multiprocessing_manager.Lock())
583
self.client_structure = [attr
584
for attr in self.__dict__.iterkeys()
585
if not attr.startswith("_")]
586
self.client_structure.append("client_structure")
587
588
for name, t in inspect.getmembers(
589
type(self), lambda obj: isinstance(obj, property)):
590
if not name.startswith("_"):
591
self.client_structure.append(name)
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())
592
375
593
# Send notice to process children that client state has changed
594
376
def send_changedstate(self):
595
with self.changedstate:
596
self.changedstate.notify_all()
597
377
self.changedstate.acquire()
378
self.changedstate.notify_all()
379
self.changedstate.release()
380
598
381
def enable(self):
599
382
"""Start this client's checker and timeout hooks"""
600
383
if getattr(self, "enabled", False):
601
384
# Already enabled
602
385
return
603
self.expires = datetime.datetime.utcnow() + self.timeout
604
self.enabled = True
386
self.send_changedstate()
605
387
self.last_enabled = datetime.datetime.utcnow()
606
self.init_checker()
607
self.send_changedstate()
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()
608
400
609
401
def disable(self, quiet=True):
610
402
"""Disable this client."""
611
403
if not getattr(self, "enabled", False):
612
404
return False
613
405
if not quiet:
406
self.send_changedstate()
407
if not quiet:
614
408
logger.info("Disabling client %s", self.name)
615
if getattr(self, "disable_initiator_tag", None) is not None:
409
if getattr(self, "disable_initiator_tag", False):
616
410
gobject.source_remove(self.disable_initiator_tag)
617
411
self.disable_initiator_tag = None
618
self.expires = None
619
if getattr(self, "checker_initiator_tag", None) is not None:
412
if getattr(self, "checker_initiator_tag", False):
620
413
gobject.source_remove(self.checker_initiator_tag)
621
414
self.checker_initiator_tag = None
622
415
self.stop_checker()
416
if self.disable_hook:
417
self.disable_hook(self)
623
418
self.enabled = False
624
if not quiet:
625
self.send_changedstate()
626
419
# Do not run this again if called by a gobject.timeout_add
627
420
return False
628
421
629
422
def __del__(self):
423
self.disable_hook = None
630
424
self.disable()
631
425
632
def init_checker(self):
633
# Schedule a new checker to be started an 'interval' from now,
634
# and every interval from then on.
635
if self.checker_initiator_tag is not None:
636
gobject.source_remove(self.checker_initiator_tag)
637
self.checker_initiator_tag = gobject.timeout_add(
638
int(self.interval.total_seconds() * 1000),
639
self.start_checker)
640
# Schedule a disable() when 'timeout' has passed
641
if self.disable_initiator_tag is not None:
642
gobject.source_remove(self.disable_initiator_tag)
643
self.disable_initiator_tag = gobject.timeout_add(
644
int(self.timeout.total_seconds() * 1000), self.disable)
645
# Also start a new checker *right now*.
646
self.start_checker()
647
648
def checker_callback(self, source, condition,
649
(connection, command)):
426
def checker_callback(self, pid, condition, command):
650
427
"""The checker has completed, so take appropriate actions."""
651
428
self.checker_callback_tag = None
652
429
self.checker = None
653
# Read return code from connection (see subprocess_call_pipe)
654
returncode = connection.recv()
655
connection.close()
656
657
if returncode >= 0:
658
self.last_checker_status = returncode
659
self.last_checker_signal = None
660
if self.last_checker_status == 0:
430
if os.WIFEXITED(condition):
431
exitstatus = os.WEXITSTATUS(condition)
432
if exitstatus == 0:
661
433
logger.info("Checker for %(name)s succeeded",
662
434
vars(self))
663
435
self.checked_ok()
664
436
else:
665
logger.info("Checker for %(name)s failed", vars(self))
437
logger.info("Checker for %(name)s failed",
438
vars(self))
666
439
else:
667
self.last_checker_status = -1
668
self.last_checker_signal = -returncode
669
440
logger.warning("Checker for %(name)s crashed?",
670
441
vars(self))
671
return False
672
442
673
443
def checked_ok(self):
674
"""Assert that the client has been seen, alive and well."""
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
449
self.last_checked_ok = datetime.datetime.utcnow()
676
self.last_checker_status = 0
677
self.last_checker_signal = None
678
self.bump_timeout()
679
680
def bump_timeout(self, timeout=None):
681
"""Bump up the timeout for this client."""
682
if timeout is None:
683
timeout = self.timeout
684
if self.disable_initiator_tag is not None:
685
gobject.source_remove(self.disable_initiator_tag)
686
self.disable_initiator_tag = None
687
if getattr(self, "enabled", False):
688
self.disable_initiator_tag = gobject.timeout_add(
689
int(timeout.total_seconds() * 1000), self.disable)
690
self.expires = datetime.datetime.utcnow() + timeout
450
gobject.source_remove(self.disable_initiator_tag)
451
self.disable_initiator_tag = (gobject.timeout_add
452
(self.timeout_milliseconds(),
453
self.disable))
691
454
692
455
def need_approval(self):
693
456
self.last_approval_request = datetime.datetime.utcnow()
698
461
If a checker already exists, leave it running and do
699
462
nothing."""
700
463
# The reason for not killing a running checker is that if we
701
# did that, and if a checker (for some reason) started running
702
# slowly and taking more than 'interval' time, then the client
703
# would inevitably timeout, since no checker would get a
704
# chance to run to completion. If we instead leave running
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
705
468
# checkers alone, the checker would have to take more time
706
469
# than 'timeout' for the client to be disabled, which is as it
707
470
# should be.
708
471
709
if self.checker is not None and not self.checker.is_alive():
710
logger.warning("Checker was not alive; joining")
711
self.checker.join()
712
self.checker = None
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)
713
485
# Start a new checker if needed
714
486
if self.checker is None:
715
# Escape attributes for the shell
716
escaped_attrs = {
717
attr: re.escape(str(getattr(self, attr)))
718
for attr in self.runtime_expansions }
719
487
try:
720
command = self.checker_command % escaped_attrs
721
except TypeError as error:
722
logger.error('Could not format string "%s"',
723
self.checker_command,
724
exc_info=error)
725
return True # Try again later
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
726
506
self.current_checker_command = command
727
logger.info("Starting checker %r for %s", command,
728
self.name)
729
# We don't need to redirect stdout and stderr, since
730
# in normal mode, that is already done by daemon(),
731
# and in debug mode we don't want to. (Stdin is
732
# always replaced by /dev/null.)
733
# The exception is when not debugging but nevertheless
734
# running in the foreground; use the previously
735
# created wnull.
736
popen_args = { "close_fds": True,
737
"shell": True,
738
"cwd": "/" }
739
if (not self.server_settings["debug"]
740
and self.server_settings["foreground"]):
741
popen_args.update({"stdout": wnull,
742
"stderr": wnull })
743
pipe = multiprocessing.Pipe(duplex=False)
744
self.checker = multiprocessing.Process(
745
target=subprocess_call_pipe, args=(pipe[1], command),
746
kwargs=popen_args)
747
self.checker.start()
748
self.checker_callback_tag = gobject.io_add_watch(
749
pipe[0].fileno(), gobject.IO_IN,
750
self.checker_callback, (pipe[0], 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)
751
530
# Re-run this periodically if run by gobject.timeout_add
752
531
return True
753
532
759
538
if getattr(self, "checker", None) is None:
760
539
return
761
540
logger.debug("Stopping checker for %(name)s", vars(self))
762
self.checker.terminate()
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
763
549
self.checker = None
764
550
765
766
def dbus_service_property(dbus_interface,
767
signature="v",
768
access="readwrite",
769
byte_arrays=False):
551
def dbus_service_property(dbus_interface, signature="v",
552
access="readwrite", byte_arrays=False):
770
553
"""Decorators for marking methods of a DBusObjectWithProperties to
771
554
become properties on the D-Bus.
772
555
781
564
# "Set" method, so we fail early here:
782
565
if byte_arrays and signature != "ay":
783
566
raise ValueError("Byte arrays not supported for non-'ay'"
784
" signature {!r}".format(signature))
785
567
" signature %r" % signature)
786
568
def decorator(func):
787
569
func._dbus_is_property = True
788
570
func._dbus_interface = dbus_interface
793
575
func._dbus_name = func._dbus_name[:-14]
794
576
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
795
577
return func
796
797
return decorator
798
799
800
def dbus_interface_annotations(dbus_interface):
801
"""Decorator for marking functions returning interface annotations
802
803
Usage:
804
805
@dbus_interface_annotations("org.example.Interface")
806
def _foo(self): # Function name does not matter
807
return {"org.freedesktop.DBus.Deprecated": "true",
808
"org.freedesktop.DBus.Property.EmitsChangedSignal":
809
"false"}
810
"""
811
812
def decorator(func):
813
func._dbus_is_interface = True
814
func._dbus_interface = dbus_interface
815
func._dbus_name = dbus_interface
816
return func
817
818
return decorator
819
820
821
def dbus_annotations(annotations):
822
"""Decorator to annotate D-Bus methods, signals or properties
823
Usage:
824
825
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
826
"org.freedesktop.DBus.Property."
827
"EmitsChangedSignal": "false"})
828
@dbus_service_property("org.example.Interface", signature="b",
829
access="r")
830
def Property_dbus_property(self):
831
return dbus.Boolean(False)
832
"""
833
834
def decorator(func):
835
func._dbus_annotations = annotations
836
return func
837
838
578
return decorator
839
579
840
580
841
581
class DBusPropertyException(dbus.exceptions.DBusException):
842
582
"""A base class for D-Bus property-related exceptions
843
583
"""
844
pass
584
def __unicode__(self):
585
return unicode(str(self))
845
586
846
587
847
588
class DBusPropertyAccessException(DBusPropertyException):
858
599
859
600
class DBusObjectWithProperties(dbus.service.Object):
860
601
"""A D-Bus object with properties.
861
602
862
603
Classes inheriting from this can use the dbus_service_property
863
604
decorator to expose methods as D-Bus properties. It exposes the
864
605
standard Get(), Set(), and GetAll() methods on the D-Bus.
865
606
"""
866
607
867
608
@staticmethod
868
def _is_dbus_thing(thing):
869
"""Returns a function testing if an attribute is a D-Bus thing
870
871
If called like _is_dbus_thing("method") it returns a function
872
suitable for use as predicate to inspect.getmembers().
873
"""
874
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
875
False)
609
def _is_dbus_property(obj):
610
return getattr(obj, "_dbus_is_property", False)
876
611
877
def _get_all_dbus_things(self, thing):
612
def _get_all_dbus_properties(self):
878
613
"""Returns a generator of (name, attribute) pairs
879
614
"""
880
return ((getattr(athing.__get__(self), "_dbus_name", name),
881
athing.__get__(self))
882
for cls in self.__class__.__mro__
883
for name, athing in
884
inspect.getmembers(cls, self._is_dbus_thing(thing)))
615
return ((prop._dbus_name, prop)
616
for name, prop in
617
inspect.getmembers(self, self._is_dbus_property))
885
618
886
619
def _get_dbus_property(self, interface_name, property_name):
887
620
"""Returns a bound method if one exists which is a D-Bus
888
621
property with the specified name and interface.
889
622
"""
890
for cls in self.__class__.__mro__:
891
for name, value in inspect.getmembers(
892
cls, self._is_dbus_thing("property")):
893
if (value._dbus_name == property_name
894
and value._dbus_interface == interface_name):
895
return value.__get__(self)
896
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
897
633
# No such property
898
raise DBusPropertyNotFound("{}:{}.{}".format(
899
self.dbus_object_path, interface_name, property_name))
634
raise DBusPropertyNotFound(self.dbus_object_path + ":"
635
+ interface_name + "."
636
+ property_name)
900
637
901
@dbus.service.method(dbus.PROPERTIES_IFACE,
902
in_signature="ss",
638
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
903
639
out_signature="v")
904
640
def Get(self, interface_name, property_name):
905
641
"""Standard D-Bus property Get() method, see D-Bus standard.
923
659
# The byte_arrays option is not supported yet on
924
660
# signatures other than "ay".
925
661
if prop._dbus_signature != "ay":
926
raise ValueError("Byte arrays not supported for non-"
927
"'ay' signature {!r}"
928
.format(prop._dbus_signature))
929
value = dbus.ByteArray(b''.join(chr(byte)
930
for byte in value))
662
raise ValueError
663
value = dbus.ByteArray(''.join(unichr(byte)
664
for byte in value))
931
665
prop(value)
932
666
933
@dbus.service.method(dbus.PROPERTIES_IFACE,
934
in_signature="s",
667
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
935
668
out_signature="a{sv}")
936
669
def GetAll(self, interface_name):
937
670
"""Standard D-Bus property GetAll() method, see D-Bus
938
671
standard.
939
672
940
673
Note: Will not include properties with access="write".
941
674
"""
942
properties = {}
943
for name, prop in self._get_all_dbus_things("property"):
675
all = {}
676
for name, prop in self._get_all_dbus_properties():
944
677
if (interface_name
945
678
and interface_name != prop._dbus_interface):
946
679
# Interface non-empty but did not match
950
683
continue
951
684
value = prop()
952
685
if not hasattr(value, "variant_level"):
953
properties[name] = value
686
all[name] = value
954
687
continue
955
properties[name] = type(value)(
956
value, variant_level = value.variant_level + 1)
957
return dbus.Dictionary(properties, signature="sv")
958
959
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
960
def PropertiesChanged(self, interface_name, changed_properties,
961
invalidated_properties):
962
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
963
standard.
964
"""
965
pass
688
all[name] = type(value)(value, variant_level=
689
value.variant_level+1)
690
return dbus.Dictionary(all, signature="sv")
966
691
967
692
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
968
693
out_signature="s",
969
694
path_keyword='object_path',
970
695
connection_keyword='connection')
971
696
def Introspect(self, object_path, connection):
972
"""Overloading of standard D-Bus method.
973
974
Inserts property tags and interface annotation tags.
697
"""Standard D-Bus method, overloaded to insert property tags.
975
698
"""
976
699
xmlstring = dbus.service.Object.Introspect(self, object_path,
977
700
connection)
978
701
try:
979
702
document = xml.dom.minidom.parseString(xmlstring)
980
981
703
def make_tag(document, name, prop):
982
704
e = document.createElement("property")
983
705
e.setAttribute("name", name)
984
706
e.setAttribute("type", prop._dbus_signature)
985
707
e.setAttribute("access", prop._dbus_access)
986
708
return e
987
988
709
for if_tag in document.getElementsByTagName("interface"):
989
# Add property tags
990
710
for tag in (make_tag(document, name, prop)
991
711
for name, prop
992
in self._get_all_dbus_things("property")
712
in self._get_all_dbus_properties()
993
713
if prop._dbus_interface
994
714
== if_tag.getAttribute("name")):
995
715
if_tag.appendChild(tag)
996
# Add annotation tags
997
for typ in ("method", "signal", "property"):
998
for tag in if_tag.getElementsByTagName(typ):
999
annots = dict()
1000
for name, prop in (self.
1001
_get_all_dbus_things(typ)):
1002
if (name == tag.getAttribute("name")
1003
and prop._dbus_interface
1004
== if_tag.getAttribute("name")):
1005
annots.update(getattr(
1006
prop, "_dbus_annotations", {}))
1007
for name, value in annots.items():
1008
ann_tag = document.createElement(
1009
"annotation")
1010
ann_tag.setAttribute("name", name)
1011
ann_tag.setAttribute("value", value)
1012
tag.appendChild(ann_tag)
1013
# Add interface annotation tags
1014
for annotation, value in dict(
1015
itertools.chain.from_iterable(
1016
annotations().items()
1017
for name, annotations
1018
in self._get_all_dbus_things("interface")
1019
if name == if_tag.getAttribute("name")
1020
)).items():
1021
ann_tag = document.createElement("annotation")
1022
ann_tag.setAttribute("name", annotation)
1023
ann_tag.setAttribute("value", value)
1024
if_tag.appendChild(ann_tag)
1025
716
# Add the names to the return values for the
1026
717
# "org.freedesktop.DBus.Properties" methods
1027
718
if (if_tag.getAttribute("name")
1042
733
except (AttributeError, xml.dom.DOMException,
1043
734
xml.parsers.expat.ExpatError) as error:
1044
735
logger.error("Failed to override Introspection method",
1045
exc_info=error)
736
error)
1046
737
return xmlstring
1047
738
1048
739
1049
def datetime_to_dbus(dt, variant_level=0):
1050
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1051
if dt is None:
1052
return dbus.String("", variant_level = variant_level)
1053
return dbus.String(dt.isoformat(), variant_level=variant_level)
1054
1055
1056
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1057
"""A class decorator; applied to a subclass of
1058
dbus.service.Object, it will add alternate D-Bus attributes with
1059
interface names according to the "alt_interface_names" mapping.
1060
Usage:
1061
1062
@alternate_dbus_interfaces({"org.example.Interface":
1063
"net.example.AlternateInterface"})
1064
class SampleDBusObject(dbus.service.Object):
1065
@dbus.service.method("org.example.Interface")
1066
def SampleDBusMethod():
1067
pass
1068
1069
The above "SampleDBusMethod" on "SampleDBusObject" will be
1070
reachable via two interfaces: "org.example.Interface" and
1071
"net.example.AlternateInterface", the latter of which will have
1072
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1073
"true", unless "deprecate" is passed with a False value.
1074
1075
This works for methods and signals, and also for D-Bus properties
1076
(from DBusObjectWithProperties) and interfaces (from the
1077
dbus_interface_annotations decorator).
1078
"""
1079
1080
def wrapper(cls):
1081
for orig_interface_name, alt_interface_name in (
1082
alt_interface_names.items()):
1083
attr = {}
1084
interface_names = set()
1085
# Go though all attributes of the class
1086
for attrname, attribute in inspect.getmembers(cls):
1087
# Ignore non-D-Bus attributes, and D-Bus attributes
1088
# with the wrong interface name
1089
if (not hasattr(attribute, "_dbus_interface")
1090
or not attribute._dbus_interface.startswith(
1091
orig_interface_name)):
1092
continue
1093
# Create an alternate D-Bus interface name based on
1094
# the current name
1095
alt_interface = attribute._dbus_interface.replace(
1096
orig_interface_name, alt_interface_name)
1097
interface_names.add(alt_interface)
1098
# Is this a D-Bus signal?
1099
if getattr(attribute, "_dbus_is_signal", False):
1100
# Extract the original non-method undecorated
1101
# function by black magic
1102
nonmethod_func = (dict(
1103
zip(attribute.func_code.co_freevars,
1104
attribute.__closure__))
1105
["func"].cell_contents)
1106
# Create a new, but exactly alike, function
1107
# object, and decorate it to be a new D-Bus signal
1108
# with the alternate D-Bus interface name
1109
new_function = (dbus.service.signal(
1110
alt_interface, attribute._dbus_signature)
1111
(types.FunctionType(
1112
nonmethod_func.func_code,
1113
nonmethod_func.func_globals,
1114
nonmethod_func.func_name,
1115
nonmethod_func.func_defaults,
1116
nonmethod_func.func_closure)))
1117
# Copy annotations, if any
1118
try:
1119
new_function._dbus_annotations = dict(
1120
attribute._dbus_annotations)
1121
except AttributeError:
1122
pass
1123
# Define a creator of a function to call both the
1124
# original and alternate functions, so both the
1125
# original and alternate signals gets sent when
1126
# the function is called
1127
def fixscope(func1, func2):
1128
"""This function is a scope container to pass
1129
func1 and func2 to the "call_both" function
1130
outside of its arguments"""
1131
1132
def call_both(*args, **kwargs):
1133
"""This function will emit two D-Bus
1134
signals by calling func1 and func2"""
1135
func1(*args, **kwargs)
1136
func2(*args, **kwargs)
1137
1138
return call_both
1139
# Create the "call_both" function and add it to
1140
# the class
1141
attr[attrname] = fixscope(attribute, new_function)
1142
# Is this a D-Bus method?
1143
elif getattr(attribute, "_dbus_is_method", False):
1144
# Create a new, but exactly alike, function
1145
# object. Decorate it to be a new D-Bus method
1146
# with the alternate D-Bus interface name. Add it
1147
# to the class.
1148
attr[attrname] = (
1149
dbus.service.method(
1150
alt_interface,
1151
attribute._dbus_in_signature,
1152
attribute._dbus_out_signature)
1153
(types.FunctionType(attribute.func_code,
1154
attribute.func_globals,
1155
attribute.func_name,
1156
attribute.func_defaults,
1157
attribute.func_closure)))
1158
# Copy annotations, if any
1159
try:
1160
attr[attrname]._dbus_annotations = dict(
1161
attribute._dbus_annotations)
1162
except AttributeError:
1163
pass
1164
# Is this a D-Bus property?
1165
elif getattr(attribute, "_dbus_is_property", False):
1166
# Create a new, but exactly alike, function
1167
# object, and decorate it to be a new D-Bus
1168
# property with the alternate D-Bus interface
1169
# name. Add it to the class.
1170
attr[attrname] = (dbus_service_property(
1171
alt_interface, attribute._dbus_signature,
1172
attribute._dbus_access,
1173
attribute._dbus_get_args_options
1174
["byte_arrays"])
1175
(types.FunctionType(
1176
attribute.func_code,
1177
attribute.func_globals,
1178
attribute.func_name,
1179
attribute.func_defaults,
1180
attribute.func_closure)))
1181
# Copy annotations, if any
1182
try:
1183
attr[attrname]._dbus_annotations = dict(
1184
attribute._dbus_annotations)
1185
except AttributeError:
1186
pass
1187
# Is this a D-Bus interface?
1188
elif getattr(attribute, "_dbus_is_interface", False):
1189
# Create a new, but exactly alike, function
1190
# object. Decorate it to be a new D-Bus interface
1191
# with the alternate D-Bus interface name. Add it
1192
# to the class.
1193
attr[attrname] = (
1194
dbus_interface_annotations(alt_interface)
1195
(types.FunctionType(attribute.func_code,
1196
attribute.func_globals,
1197
attribute.func_name,
1198
attribute.func_defaults,
1199
attribute.func_closure)))
1200
if deprecate:
1201
# Deprecate all alternate interfaces
1202
iname="_AlternateDBusNames_interface_annotation{}"
1203
for interface_name in interface_names:
1204
1205
@dbus_interface_annotations(interface_name)
1206
def func(self):
1207
return { "org.freedesktop.DBus.Deprecated":
1208
"true" }
1209
# Find an unused name
1210
for aname in (iname.format(i)
1211
for i in itertools.count()):
1212
if aname not in attr:
1213
attr[aname] = func
1214
break
1215
if interface_names:
1216
# Replace the class with a new subclass of it with
1217
# methods, signals, etc. as created above.
1218
cls = type(b"{}Alternate".format(cls.__name__),
1219
(cls, ), attr)
1220
return cls
1221
1222
return wrapper
1223
1224
1225
@alternate_dbus_interfaces({"se.recompile.Mandos":
1226
"se.bsnet.fukt.Mandos"})
1227
740
class ClientDBus(Client, DBusObjectWithProperties):
1228
741
"""A Client class using D-Bus
1229
742
1233
746
"""
1234
747
1235
748
runtime_expansions = (Client.runtime_expansions
1236
+ ("dbus_object_path", ))
1237
1238
_interface = "se.recompile.Mandos.Client"
749
+ ("dbus_object_path",))
1239
750
1240
751
# dbus.service.Object doesn't use super(), so we can't either.
1241
752
1242
753
def __init__(self, bus = None, *args, **kwargs):
754
self._approvals_pending = 0
1243
755
self.bus = bus
1244
756
Client.__init__(self, *args, **kwargs)
1245
757
# Only now, when this client is initialized, can it show up on
1246
758
# the D-Bus
1247
client_object_name = str(self.name).translate(
759
client_object_name = unicode(self.name).translate(
1248
760
{ord("."): ord("_"),
1249
761
ord("-"): ord("_")})
1250
self.dbus_object_path = dbus.ObjectPath(
1251
"/clients/" + client_object_name)
762
self.dbus_object_path = (dbus.ObjectPath
763
("/clients/" + client_object_name))
1252
764
DBusObjectWithProperties.__init__(self, self.bus,
1253
765
self.dbus_object_path)
1254
1255
def notifychangeproperty(transform_func, dbus_name,
1256
type_func=lambda x: x,
1257
variant_level=1,
1258
invalidate_only=False,
1259
_interface=_interface):
1260
""" Modify a variable so that it's a property which announces
1261
its changes to DBus.
1262
1263
transform_fun: Function that takes a value and a variant_level
1264
and transforms it to a D-Bus type.
1265
dbus_name: D-Bus name of the variable
1266
type_func: Function that transform the value before sending it
1267
to the D-Bus. Default: no transform
1268
variant_level: D-Bus variant level. Default: 1
1269
"""
1270
attrname = "_{}".format(dbus_name)
1271
1272
def setter(self, value):
1273
if hasattr(self, "dbus_object_path"):
1274
if (not hasattr(self, attrname) or
1275
type_func(getattr(self, attrname, None))
1276
!= type_func(value)):
1277
if invalidate_only:
1278
self.PropertiesChanged(
1279
_interface, dbus.Dictionary(),
1280
dbus.Array((dbus_name, )))
1281
else:
1282
dbus_value = transform_func(
1283
type_func(value),
1284
variant_level = variant_level)
1285
self.PropertyChanged(dbus.String(dbus_name),
1286
dbus_value)
1287
self.PropertiesChanged(
1288
_interface,
1289
dbus.Dictionary({ dbus.String(dbus_name):
1290
dbus_value }),
1291
dbus.Array())
1292
setattr(self, attrname, value)
1293
1294
return property(lambda self: getattr(self, attrname), setter)
1295
1296
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1297
approvals_pending = notifychangeproperty(dbus.Boolean,
1298
"ApprovalPending",
1299
type_func = bool)
1300
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1301
last_enabled = notifychangeproperty(datetime_to_dbus,
1302
"LastEnabled")
1303
checker = notifychangeproperty(
1304
dbus.Boolean, "CheckerRunning",
1305
type_func = lambda checker: checker is not None)
1306
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1307
"LastCheckedOK")
1308
last_checker_status = notifychangeproperty(dbus.Int16,
1309
"LastCheckerStatus")
1310
last_approval_request = notifychangeproperty(
1311
datetime_to_dbus, "LastApprovalRequest")
1312
approved_by_default = notifychangeproperty(dbus.Boolean,
1313
"ApprovedByDefault")
1314
approval_delay = notifychangeproperty(
1315
dbus.UInt64, "ApprovalDelay",
1316
type_func = lambda td: td.total_seconds() * 1000)
1317
approval_duration = notifychangeproperty(
1318
dbus.UInt64, "ApprovalDuration",
1319
type_func = lambda td: td.total_seconds() * 1000)
1320
host = notifychangeproperty(dbus.String, "Host")
1321
timeout = notifychangeproperty(
1322
dbus.UInt64, "Timeout",
1323
type_func = lambda td: td.total_seconds() * 1000)
1324
extended_timeout = notifychangeproperty(
1325
dbus.UInt64, "ExtendedTimeout",
1326
type_func = lambda td: td.total_seconds() * 1000)
1327
interval = notifychangeproperty(
1328
dbus.UInt64, "Interval",
1329
type_func = lambda td: td.total_seconds() * 1000)
1330
checker_command = notifychangeproperty(dbus.String, "Checker")
1331
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1332
invalidate_only=True)
1333
1334
del notifychangeproperty
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
1335
810
1336
811
def __del__(self, *args, **kwargs):
1337
812
try:
1342
817
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1343
818
Client.__del__(self, *args, **kwargs)
1344
819
1345
def checker_callback(self, source, condition,
1346
(connection, command), *args, **kwargs):
1347
ret = Client.checker_callback(self, source, condition,
1348
(connection, command), *args,
1349
**kwargs)
1350
exitstatus = self.last_checker_status
1351
if exitstatus >= 0:
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)
1352
829
# Emit D-Bus signal
1353
830
self.CheckerCompleted(dbus.Int16(exitstatus),
1354
dbus.Int64(0),
831
dbus.Int64(condition),
1355
832
dbus.String(command))
1356
833
else:
1357
834
# Emit D-Bus signal
1358
835
self.CheckerCompleted(dbus.Int16(-1),
1359
dbus.Int64(
1360
self.last_checker_signal),
836
dbus.Int64(condition),
1361
837
dbus.String(command))
1362
return ret
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
1363
858
1364
859
def start_checker(self, *args, **kwargs):
1365
old_checker_pid = getattr(self.checker, "pid", None)
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
1366
865
r = Client.start_checker(self, *args, **kwargs)
1367
866
# Only if new checker process was started
1368
867
if (self.checker is not None
1369
868
and old_checker_pid != self.checker.pid):
1370
869
# Emit D-Bus signal
1371
870
self.CheckerStarted(self.current_checker_command)
871
self.PropertyChanged(
872
dbus.String("CheckerRunning"),
873
dbus.Boolean(True, variant_level=1))
1372
874
return r
1373
875
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
1374
885
def _reset_approved(self):
1375
self.approved = None
886
self._approved = None
1376
887
return False
1377
888
1378
889
def approve(self, value=True):
1379
self.approved = value
1380
gobject.timeout_add(int(self.approval_duration.total_seconds()
1381
* 1000), self._reset_approved)
1382
890
self.send_changedstate()
891
self._approved = value
892
gobject.timeout_add(self._timedelta_to_milliseconds
893
(self.approval_duration),
894
self._reset_approved)
895
1383
896
1384
897
## D-Bus methods, signals & properties
1385
1386
## Interfaces
898
_interface = "se.bsnet.fukt.Mandos.Client"
1387
899
1388
900
## Signals
1389
901
1400
912
pass
1401
913
1402
914
# PropertyChanged - signal
1403
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1404
915
@dbus.service.signal(_interface, signature="sv")
1405
916
def PropertyChanged(self, property, value):
1406
917
"D-Bus signal"
1470
981
return dbus.Boolean(bool(self.approvals_pending))
1471
982
1472
983
# ApprovedByDefault - property
1473
@dbus_service_property(_interface,
1474
signature="b",
984
@dbus_service_property(_interface, signature="b",
1475
985
access="readwrite")
1476
986
def ApprovedByDefault_dbus_property(self, value=None):
1477
987
if value is None: # get
1478
988
return dbus.Boolean(self.approved_by_default)
1479
989
self.approved_by_default = bool(value)
990
# Emit D-Bus signal
991
self.PropertyChanged(dbus.String("ApprovedByDefault"),
992
dbus.Boolean(value, variant_level=1))
1480
993
1481
994
# ApprovalDelay - property
1482
@dbus_service_property(_interface,
1483
signature="t",
995
@dbus_service_property(_interface, signature="t",
1484
996
access="readwrite")
1485
997
def ApprovalDelay_dbus_property(self, value=None):
1486
998
if value is None: # get
1487
return dbus.UInt64(self.approval_delay.total_seconds()
1488
* 1000)
999
return dbus.UInt64(self.approval_delay_milliseconds())
1489
1000
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))
1490
1004
1491
1005
# ApprovalDuration - property
1492
@dbus_service_property(_interface,
1493
signature="t",
1006
@dbus_service_property(_interface, signature="t",
1494
1007
access="readwrite")
1495
1008
def ApprovalDuration_dbus_property(self, value=None):
1496
1009
if value is None: # get
1497
return dbus.UInt64(self.approval_duration.total_seconds()
1498
* 1000)
1010
return dbus.UInt64(self._timedelta_to_milliseconds(
1011
self.approval_duration))
1499
1012
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))
1500
1016
1501
1017
# Name - property
1502
1018
@dbus_service_property(_interface, signature="s", access="read")
1509
1025
return dbus.String(self.fingerprint)
1510
1026
1511
1027
# Host - property
1512
@dbus_service_property(_interface,
1513
signature="s",
1028
@dbus_service_property(_interface, signature="s",
1514
1029
access="readwrite")
1515
1030
def Host_dbus_property(self, value=None):
1516
1031
if value is None: # get
1517
1032
return dbus.String(self.host)
1518
self.host = str(value)
1033
self.host = value
1034
# Emit D-Bus signal
1035
self.PropertyChanged(dbus.String("Host"),
1036
dbus.String(value, variant_level=1))
1519
1037
1520
1038
# Created - property
1521
1039
@dbus_service_property(_interface, signature="s", access="read")
1522
1040
def Created_dbus_property(self):
1523
return datetime_to_dbus(self.created)
1041
return dbus.String(self._datetime_to_dbus(self.created))
1524
1042
1525
1043
# LastEnabled - property
1526
1044
@dbus_service_property(_interface, signature="s", access="read")
1527
1045
def LastEnabled_dbus_property(self):
1528
return datetime_to_dbus(self.last_enabled)
1046
if self.last_enabled is None:
1047
return dbus.String("")
1048
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1529
1049
1530
1050
# Enabled - property
1531
@dbus_service_property(_interface,
1532
signature="b",
1051
@dbus_service_property(_interface, signature="b",
1533
1052
access="readwrite")
1534
1053
def Enabled_dbus_property(self, value=None):
1535
1054
if value is None: # get
1540
1059
self.disable()
1541
1060
1542
1061
# LastCheckedOK - property
1543
@dbus_service_property(_interface,
1544
signature="s",
1062
@dbus_service_property(_interface, signature="s",
1545
1063
access="readwrite")
1546
1064
def LastCheckedOK_dbus_property(self, value=None):
1547
1065
if value is not None:
1548
1066
self.checked_ok()
1549
1067
return
1550
return datetime_to_dbus(self.last_checked_ok)
1551
1552
# LastCheckerStatus - property
1553
@dbus_service_property(_interface, signature="n", access="read")
1554
def LastCheckerStatus_dbus_property(self):
1555
return dbus.Int16(self.last_checker_status)
1556
1557
# Expires - property
1558
@dbus_service_property(_interface, signature="s", access="read")
1559
def Expires_dbus_property(self):
1560
return datetime_to_dbus(self.expires)
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))
1561
1072
1562
1073
# LastApprovalRequest - property
1563
1074
@dbus_service_property(_interface, signature="s", access="read")
1564
1075
def LastApprovalRequest_dbus_property(self):
1565
return datetime_to_dbus(self.last_approval_request)
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))
1566
1081
1567
1082
# Timeout - property
1568
@dbus_service_property(_interface,
1569
signature="t",
1083
@dbus_service_property(_interface, signature="t",
1570
1084
access="readwrite")
1571
1085
def Timeout_dbus_property(self, value=None):
1572
1086
if value is None: # get
1573
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1574
old_timeout = self.timeout
1087
return dbus.UInt64(self.timeout_milliseconds())
1575
1088
self.timeout = datetime.timedelta(0, 0, 0, value)
1576
# Reschedule disabling
1577
if self.enabled:
1578
now = datetime.datetime.utcnow()
1579
self.expires += self.timeout - old_timeout
1580
if self.expires <= now:
1581
# The timeout has passed
1582
self.disable()
1583
else:
1584
if (getattr(self, "disable_initiator_tag", None)
1585
is None):
1586
return
1587
gobject.source_remove(self.disable_initiator_tag)
1588
self.disable_initiator_tag = gobject.timeout_add(
1589
int((self.expires - now).total_seconds() * 1000),
1590
self.disable)
1591
1592
# ExtendedTimeout - property
1593
@dbus_service_property(_interface,
1594
signature="t",
1595
access="readwrite")
1596
def ExtendedTimeout_dbus_property(self, value=None):
1597
if value is None: # get
1598
return dbus.UInt64(self.extended_timeout.total_seconds()
1599
* 1000)
1600
self.extended_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))
1601
1109
1602
1110
# Interval - property
1603
@dbus_service_property(_interface,
1604
signature="t",
1111
@dbus_service_property(_interface, signature="t",
1605
1112
access="readwrite")
1606
1113
def Interval_dbus_property(self, value=None):
1607
1114
if value is None: # get
1608
return dbus.UInt64(self.interval.total_seconds() * 1000)
1115
return dbus.UInt64(self.interval_milliseconds())
1609
1116
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))
1610
1120
if getattr(self, "checker_initiator_tag", None) is None:
1611
1121
return
1612
if self.enabled:
1613
# Reschedule checker run
1614
gobject.source_remove(self.checker_initiator_tag)
1615
self.checker_initiator_tag = gobject.timeout_add(
1616
value, self.start_checker)
1617
self.start_checker() # Start one now, too
1618
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
1619
1128
# Checker - property
1620
@dbus_service_property(_interface,
1621
signature="s",
1129
@dbus_service_property(_interface, signature="s",
1622
1130
access="readwrite")
1623
1131
def Checker_dbus_property(self, value=None):
1624
1132
if value is None: # get
1625
1133
return dbus.String(self.checker_command)
1626
self.checker_command = str(value)
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))
1627
1139
1628
1140
# CheckerRunning - property
1629
@dbus_service_property(_interface,
1630
signature="b",
1141
@dbus_service_property(_interface, signature="b",
1631
1142
access="readwrite")
1632
1143
def CheckerRunning_dbus_property(self, value=None):
1633
1144
if value is None: # get
1643
1154
return self.dbus_object_path # is already a dbus.ObjectPath
1644
1155
1645
1156
# Secret = property
1646
@dbus_service_property(_interface,
1647
signature="ay",
1648
access="write",
1649
byte_arrays=True)
1157
@dbus_service_property(_interface, signature="ay",
1158
access="write", byte_arrays=True)
1650
1159
def Secret_dbus_property(self, value):
1651
self.secret = bytes(value)
1160
self.secret = str(value)
1652
1161
1653
1162
del _interface
1654
1163
1659
1168
self._pipe.send(('init', fpr, address))
1660
1169
if not self._pipe.recv():
1661
1170
raise KeyError()
1662
1171
1663
1172
def __getattribute__(self, name):
1664
if name == '_pipe':
1173
if(name == '_pipe'):
1665
1174
return super(ProxyClient, self).__getattribute__(name)
1666
1175
self._pipe.send(('getattr', name))
1667
1176
data = self._pipe.recv()
1668
1177
if data[0] == 'data':
1669
1178
return data[1]
1670
1179
if data[0] == 'function':
1671
1672
1180
def func(*args, **kwargs):
1673
1181
self._pipe.send(('funcall', name, args, kwargs))
1674
1182
return self._pipe.recv()[1]
1675
1676
1183
return func
1677
1184
1678
1185
def __setattr__(self, name, value):
1679
if name == '_pipe':
1186
if(name == '_pipe'):
1680
1187
return super(ProxyClient, self).__setattr__(name, value)
1681
1188
self._pipe.send(('setattr', name, value))
1682
1189
1690
1197
def handle(self):
1691
1198
with contextlib.closing(self.server.child_pipe) as child_pipe:
1692
1199
logger.info("TCP connection from: %s",
1693
str(self.client_address))
1200
unicode(self.client_address))
1694
1201
logger.debug("Pipe FD: %d",
1695
1202
self.server.child_pipe.fileno())
1696
1697
session = gnutls.connection.ClientSession(
1698
self.request, gnutls.connection .X509Credentials())
1699
1203
1204
session = (gnutls.connection
1205
.ClientSession(self.request,
1206
gnutls.connection
1207
.X509Credentials()))
1208
1700
1209
# Note: gnutls.connection.X509Credentials is really a
1701
1210
# generic GnuTLS certificate credentials object so long as
1702
1211
# no X.509 keys are added to it. Therefore, we can use it
1703
1212
# here despite using OpenPGP certificates.
1704
1213
1705
1214
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1706
1215
# "+AES-256-CBC", "+SHA1",
1707
1216
# "+COMP-NULL", "+CTYPE-OPENPGP",
1710
1219
priority = self.server.gnutls_priority
1711
1220
if priority is None:
1712
1221
priority = "NORMAL"
1713
gnutls.library.functions.gnutls_priority_set_direct(
1714
session._c_object, priority, None)
1715
1222
(gnutls.library.functions
1223
.gnutls_priority_set_direct(session._c_object,
1224
priority, None))
1225
1716
1226
# Start communication using the Mandos protocol
1717
1227
# Get protocol number
1718
1228
line = self.request.makefile().readline()
1719
1229
logger.debug("Protocol version: %r", line)
1720
1230
try:
1721
1231
if int(line.strip().split()[0]) > 1:
1722
raise RuntimeError(line)
1232
raise RuntimeError
1723
1233
except (ValueError, IndexError, RuntimeError) as error:
1724
1234
logger.error("Unknown protocol version: %s", error)
1725
1235
return
1726
1236
1727
1237
# Start GnuTLS connection
1728
1238
try:
1729
1239
session.handshake()
1733
1243
# established. Just abandon the request.
1734
1244
return
1735
1245
logger.debug("Handshake succeeded")
1736
1246
1737
1247
approval_required = False
1738
1248
try:
1739
1249
try:
1740
fpr = self.fingerprint(
1741
self.peer_certificate(session))
1250
fpr = self.fingerprint(self.peer_certificate
1251
(session))
1742
1252
except (TypeError,
1743
1253
gnutls.errors.GNUTLSError) as error:
1744
1254
logger.warning("Bad certificate: %s", error)
1745
1255
return
1746
1256
logger.debug("Fingerprint: %s", fpr)
1747
1257
1748
1258
try:
1749
1259
client = ProxyClient(child_pipe, fpr,
1750
1260
self.client_address)
1759
1269
while True:
1760
1270
if not client.enabled:
1761
1271
logger.info("Client %s is disabled",
1762
client.name)
1272
client.name)
1763
1273
if self.server.use_dbus:
1764
1274
# Emit D-Bus signal
1765
client.Rejected("Disabled")
1275
client.Rejected("Disabled")
1766
1276
return
1767
1277
1768
if client.approved or not client.approval_delay:
1278
if client._approved or not client.approval_delay:
1769
1279
#We are approved or approval is disabled
1770
1280
break
1771
elif client.approved is None:
1281
elif client._approved is None:
1772
1282
logger.info("Client %s needs approval",
1773
1283
client.name)
1774
1284
if self.server.use_dbus:
1775
1285
# Emit D-Bus signal
1776
1286
client.NeedApproval(
1777
client.approval_delay.total_seconds()
1778
* 1000, client.approved_by_default)
1287
client.approval_delay_milliseconds(),
1288
client.approved_by_default)
1779
1289
else:
1780
1290
logger.warning("Client %s was not approved",
1781
1291
client.name)
1785
1295
return
1786
1296
1787
1297
#wait until timeout or approved
1298
#x = float(client._timedelta_to_milliseconds(delay))
1788
1299
time = datetime.datetime.now()
1789
1300
client.changedstate.acquire()
1790
client.changedstate.wait(delay.total_seconds())
1301
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1791
1302
client.changedstate.release()
1792
1303
time2 = datetime.datetime.now()
1793
1304
if (time2 - time) >= delay:
1809
1320
try:
1810
1321
sent = session.send(client.secret[sent_size:])
1811
1322
except gnutls.errors.GNUTLSError as error:
1812
logger.warning("gnutls send failed",
1813
exc_info=error)
1323
logger.warning("gnutls send failed")
1814
1324
return
1815
logger.debug("Sent: %d, remaining: %d", sent,
1816
len(client.secret) - (sent_size
1817
+ sent))
1325
logger.debug("Sent: %d, remaining: %d",
1326
sent, len(client.secret)
1327
- (sent_size + sent))
1818
1328
sent_size += sent
1819
1329
1820
1330
logger.info("Sending secret to %s", client.name)
1821
# bump the timeout using extended_timeout
1822
client.bump_timeout(client.extended_timeout)
1331
# bump the timeout as if seen
1332
client.checked_ok()
1823
1333
if self.server.use_dbus:
1824
1334
# Emit D-Bus signal
1825
1335
client.GotSecret()
1830
1340
try:
1831
1341
session.bye()
1832
1342
except gnutls.errors.GNUTLSError as error:
1833
logger.warning("GnuTLS bye failed",
1834
exc_info=error)
1343
logger.warning("GnuTLS bye failed")
1835
1344
1836
1345
@staticmethod
1837
1346
def peer_certificate(session):
1838
1347
"Return the peer's OpenPGP certificate as a bytestring"
1839
1348
# If not an OpenPGP certificate...
1840
if (gnutls.library.functions.gnutls_certificate_type_get(
1841
session._c_object)
1349
if (gnutls.library.functions
1350
.gnutls_certificate_type_get(session._c_object)
1842
1351
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1843
1352
# ...do the normal thing
1844
1353
return session.peer_certificate
1858
1367
def fingerprint(openpgp):
1859
1368
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1860
1369
# New GnuTLS "datum" with the OpenPGP public key
1861
datum = gnutls.library.types.gnutls_datum_t(
1862
ctypes.cast(ctypes.c_char_p(openpgp),
1863
ctypes.POINTER(ctypes.c_ubyte)),
1864
ctypes.c_uint(len(openpgp)))
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))))
1865
1375
# New empty GnuTLS certificate
1866
1376
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1867
gnutls.library.functions.gnutls_openpgp_crt_init(
1868
ctypes.byref(crt))
1377
(gnutls.library.functions
1378
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1869
1379
# Import the OpenPGP public key into the certificate
1870
gnutls.library.functions.gnutls_openpgp_crt_import(
1871
crt, ctypes.byref(datum),
1872
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1380
(gnutls.library.functions
1381
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1382
gnutls.library.constants
1383
.GNUTLS_OPENPGP_FMT_RAW))
1873
1384
# Verify the self signature in the key
1874
1385
crtverify = ctypes.c_uint()
1875
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1876
crt, 0, ctypes.byref(crtverify))
1386
(gnutls.library.functions
1387
.gnutls_openpgp_crt_verify_self(crt, 0,
1388
ctypes.byref(crtverify)))
1877
1389
if crtverify.value != 0:
1878
1390
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1879
raise gnutls.errors.CertificateSecurityError(
1880
"Verify failed")
1391
raise (gnutls.errors.CertificateSecurityError
1392
("Verify failed"))
1881
1393
# New buffer for the fingerprint
1882
1394
buf = ctypes.create_string_buffer(20)
1883
1395
buf_len = ctypes.c_size_t()
1884
1396
# Get the fingerprint from the certificate into the buffer
1885
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1886
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1397
(gnutls.library.functions
1398
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1399
ctypes.byref(buf_len)))
1887
1400
# Deinit the certificate
1888
1401
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1889
1402
# Convert the buffer to a Python bytestring
1890
1403
fpr = ctypes.string_at(buf, buf_len.value)
1891
1404
# Convert the bytestring to hexadecimal notation
1892
hex_fpr = binascii.hexlify(fpr).upper()
1405
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1893
1406
return hex_fpr
1894
1407
1895
1408
1896
1409
class MultiprocessingMixIn(object):
1897
1410
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1898
1899
1411
def sub_process_main(self, request, address):
1900
1412
try:
1901
1413
self.finish_request(request, address)
1902
except Exception:
1414
except:
1903
1415
self.handle_error(request, address)
1904
1416
self.close_request(request)
1905
1417
1906
1418
def process_request(self, request, address):
1907
1419
"""Start a new process to process the request."""
1908
proc = multiprocessing.Process(target = self.sub_process_main,
1909
args = (request, address))
1910
proc.start()
1911
return proc
1912
1420
multiprocessing.Process(target = self.sub_process_main,
1421
args = (request, address)).start()
1913
1422
1914
1423
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1915
1424
""" adds a pipe to the MixIn """
1916
1917
1425
def process_request(self, request, client_address):
1918
1426
"""Overrides and wraps the original process_request().
1919
1427
1920
1428
This function creates a new pipe in self.pipe
1921
1429
"""
1922
1430
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1923
1924
proc = MultiprocessingMixIn.process_request(self, request,
1925
client_address)
1431
1432
super(MultiprocessingMixInWithPipe,
1433
self).process_request(request, client_address)
1926
1434
self.child_pipe.close()
1927
self.add_pipe(parent_pipe, proc)
1928
1929
def add_pipe(self, parent_pipe, proc):
1435
self.add_pipe(parent_pipe)
1436
1437
def add_pipe(self, parent_pipe):
1930
1438
"""Dummy function; override as necessary"""
1931
raise NotImplementedError()
1932
1439
raise NotImplementedError
1933
1440
1934
1441
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1935
1442
socketserver.TCPServer, object):
1940
1447
interface: None or a network interface name (string)
1941
1448
use_ipv6: Boolean; to use IPv6 or not
1942
1449
"""
1943
1944
1450
def __init__(self, server_address, RequestHandlerClass,
1945
interface=None,
1946
use_ipv6=True,
1947
socketfd=None):
1948
"""If socketfd is set, use that file descriptor instead of
1949
creating a new one with socket.socket().
1950
"""
1451
interface=None, use_ipv6=True):
1951
1452
self.interface = interface
1952
1453
if use_ipv6:
1953
1454
self.address_family = socket.AF_INET6
1954
if socketfd is not None:
1955
# Save the file descriptor
1956
self.socketfd = socketfd
1957
# Save the original socket.socket() function
1958
self.socket_socket = socket.socket
1959
# To implement --socket, we monkey patch socket.socket.
1960
#
1961
# (When socketserver.TCPServer is a new-style class, we
1962
# could make self.socket into a property instead of monkey
1963
# patching socket.socket.)
1964
#
1965
# Create a one-time-only replacement for socket.socket()
1966
@functools.wraps(socket.socket)
1967
def socket_wrapper(*args, **kwargs):
1968
# Restore original function so subsequent calls are
1969
# not affected.
1970
socket.socket = self.socket_socket
1971
del self.socket_socket
1972
# This time only, return a new socket object from the
1973
# saved file descriptor.
1974
return socket.fromfd(self.socketfd, *args, **kwargs)
1975
# Replace socket.socket() function with wrapper
1976
socket.socket = socket_wrapper
1977
# The socketserver.TCPServer.__init__ will call
1978
# socket.socket(), which might be our replacement,
1979
# socket_wrapper(), if socketfd was set.
1980
1455
socketserver.TCPServer.__init__(self, server_address,
1981
1456
RequestHandlerClass)
1982
1983
1457
def server_bind(self):
1984
1458
"""This overrides the normal server_bind() function
1985
1459
to bind to an interface if one was specified, and also NOT to
1991
1465
self.interface)
1992
1466
else:
1993
1467
try:
1994
self.socket.setsockopt(
1995
socket.SOL_SOCKET, SO_BINDTODEVICE,
1996
(self.interface + "\0").encode("utf-8"))
1468
self.socket.setsockopt(socket.SOL_SOCKET,
1469
SO_BINDTODEVICE,
1470
str(self.interface
1471
+ '\0'))
1997
1472
except socket.error as error:
1998
if error.errno == errno.EPERM:
1999
logger.error("No permission to bind to"
2000
" interface %s", self.interface)
2001
elif error.errno == errno.ENOPROTOOPT:
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:
2002
1478
logger.error("SO_BINDTODEVICE not available;"
2003
1479
" cannot bind to interface %s",
2004
1480
self.interface)
2005
elif error.errno == errno.ENODEV:
2006
logger.error("Interface %s does not exist,"
2007
" cannot bind", self.interface)
2008
1481
else:
2009
1482
raise
2010
1483
# Only bind(2) the socket if we really need to.
2013
1486
if self.address_family == socket.AF_INET6:
2014
1487
any_address = "::" # in6addr_any
2015
1488
else:
2016
any_address = "0.0.0.0" # INADDR_ANY
1489
any_address = socket.INADDR_ANY
2017
1490
self.server_address = (any_address,
2018
1491
self.server_address[1])
2019
1492
elif not self.server_address[1]:
2020
self.server_address = (self.server_address[0], 0)
1493
self.server_address = (self.server_address[0],
1494
0)
2021
1495
# if self.interface:
2022
1496
# self.server_address = (self.server_address[0],
2023
1497
# 0, # port
2037
1511
2038
1512
Assumes a gobject.MainLoop event loop.
2039
1513
"""
2040
2041
1514
def __init__(self, server_address, RequestHandlerClass,
2042
interface=None,
2043
use_ipv6=True,
2044
clients=None,
2045
gnutls_priority=None,
2046
use_dbus=True,
2047
socketfd=None):
1515
interface=None, use_ipv6=True, clients=None,
1516
gnutls_priority=None, use_dbus=True):
2048
1517
self.enabled = False
2049
1518
self.clients = clients
2050
1519
if self.clients is None:
2051
self.clients = {}
1520
self.clients = set()
2052
1521
self.use_dbus = use_dbus
2053
1522
self.gnutls_priority = gnutls_priority
2054
1523
IPv6_TCPServer.__init__(self, server_address,
2055
1524
RequestHandlerClass,
2056
1525
interface = interface,
2057
use_ipv6 = use_ipv6,
2058
socketfd = socketfd)
2059
1526
use_ipv6 = use_ipv6)
2060
1527
def server_activate(self):
2061
1528
if self.enabled:
2062
1529
return socketserver.TCPServer.server_activate(self)
2063
2064
1530
def enable(self):
2065
1531
self.enabled = True
2066
2067
def add_pipe(self, parent_pipe, proc):
1532
def add_pipe(self, parent_pipe):
2068
1533
# Call "handle_ipc" for both data and EOF events
2069
gobject.io_add_watch(
2070
parent_pipe.fileno(),
2071
gobject.IO_IN | gobject.IO_HUP,
2072
functools.partial(self.handle_ipc,
2073
parent_pipe = parent_pipe,
2074
proc = proc))
2075
2076
def handle_ipc(self, source, condition,
2077
parent_pipe=None,
2078
proc = None,
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,
2079
1540
client_object=None):
2080
# error, or the other end of multiprocessing.Pipe has closed
2081
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2082
# Wait for other process to exit
2083
proc.join()
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):
2084
1557
return False
2085
1558
2086
1559
# Read a request from the child
2091
1564
fpr = request[1]
2092
1565
address = request[2]
2093
1566
2094
for c in self.clients.itervalues():
1567
for c in self.clients:
2095
1568
if c.fingerprint == fpr:
2096
1569
client = c
2097
1570
break
2100
1573
"dress: %s", fpr, address)
2101
1574
if self.use_dbus:
2102
1575
# Emit D-Bus signal
2103
mandos_dbus_service.ClientNotFound(fpr,
2104
address[0])
1576
mandos_dbus_service.ClientNotFound(fpr, address[0])
2105
1577
parent_pipe.send(False)
2106
1578
return False
2107
1579
2108
gobject.io_add_watch(
2109
parent_pipe.fileno(),
2110
gobject.IO_IN | gobject.IO_HUP,
2111
functools.partial(self.handle_ipc,
2112
parent_pipe = parent_pipe,
2113
proc = proc,
2114
client_object = client))
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))
2115
1585
parent_pipe.send(True)
2116
# remove the old hook in favor of the new above hook on
2117
# same fileno
1586
# remove the old hook in favor of the new above hook on same fileno
2118
1587
return False
2119
1588
if command == 'funcall':
2120
1589
funcname = request[1]
2121
1590
args = request[2]
2122
1591
kwargs = request[3]
2123
1592
2124
parent_pipe.send(('data', getattr(client_object,
2125
funcname)(*args,
2126
**kwargs)))
2127
1593
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1594
2128
1595
if command == 'getattr':
2129
1596
attrname = request[1]
2130
1597
if callable(client_object.__getattribute__(attrname)):
2131
parent_pipe.send(('function', ))
1598
parent_pipe.send(('function',))
2132
1599
else:
2133
parent_pipe.send((
2134
'data', client_object.__getattribute__(attrname)))
1600
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2135
1601
2136
1602
if command == 'setattr':
2137
1603
attrname = request[1]
2138
1604
value = request[2]
2139
1605
setattr(client_object, attrname, value)
2140
1606
2141
1607
return True
2142
1608
2143
1609
2144
def rfc3339_duration_to_delta(duration):
2145
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2146
2147
>>> rfc3339_duration_to_delta("P7D")
2148
datetime.timedelta(7)
2149
>>> rfc3339_duration_to_delta("PT60S")
2150
datetime.timedelta(0, 60)
2151
>>> rfc3339_duration_to_delta("PT60M")
2152
datetime.timedelta(0, 3600)
2153
>>> rfc3339_duration_to_delta("PT24H")
2154
datetime.timedelta(1)
2155
>>> rfc3339_duration_to_delta("P1W")
2156
datetime.timedelta(7)
2157
>>> rfc3339_duration_to_delta("PT5M30S")
2158
datetime.timedelta(0, 330)
2159
>>> rfc3339_duration_to_delta("P1DT3M20S")
2160
datetime.timedelta(1, 200)
2161
"""
2162
2163
# Parsing an RFC 3339 duration with regular expressions is not
2164
# possible - there would have to be multiple places for the same
2165
# values, like seconds. The current code, while more esoteric, is
2166
# cleaner without depending on a parsing library. If Python had a
2167
# built-in library for parsing we would use it, but we'd like to
2168
# avoid excessive use of external libraries.
2169
2170
# New type for defining tokens, syntax, and semantics all-in-one
2171
Token = collections.namedtuple("Token",
2172
("regexp", # To match token; if
2173
# "value" is not None,
2174
# must have a "group"
2175
# containing digits
2176
"value", # datetime.timedelta or
2177
# None
2178
"followers")) # Tokens valid after
2179
# this token
2180
Token = collections.namedtuple("Token", (
2181
"regexp", # To match token; if "value" is not None, must have
2182
# a "group" containing digits
2183
"value", # datetime.timedelta or None
2184
"followers")) # Tokens valid after this token
2185
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2186
# the "duration" ABNF definition in RFC 3339, Appendix A.
2187
token_end = Token(re.compile(r"$"), None, frozenset())
2188
token_second = Token(re.compile(r"(\d+)S"),
2189
datetime.timedelta(seconds=1),
2190
frozenset((token_end, )))
2191
token_minute = Token(re.compile(r"(\d+)M"),
2192
datetime.timedelta(minutes=1),
2193
frozenset((token_second, token_end)))
2194
token_hour = Token(re.compile(r"(\d+)H"),
2195
datetime.timedelta(hours=1),
2196
frozenset((token_minute, token_end)))
2197
token_time = Token(re.compile(r"T"),
2198
None,
2199
frozenset((token_hour, token_minute,
2200
token_second)))
2201
token_day = Token(re.compile(r"(\d+)D"),
2202
datetime.timedelta(days=1),
2203
frozenset((token_time, token_end)))
2204
token_month = Token(re.compile(r"(\d+)M"),
2205
datetime.timedelta(weeks=4),
2206
frozenset((token_day, token_end)))
2207
token_year = Token(re.compile(r"(\d+)Y"),
2208
datetime.timedelta(weeks=52),
2209
frozenset((token_month, token_end)))
2210
token_week = Token(re.compile(r"(\d+)W"),
2211
datetime.timedelta(weeks=1),
2212
frozenset((token_end, )))
2213
token_duration = Token(re.compile(r"P"), None,
2214
frozenset((token_year, token_month,
2215
token_day, token_time,
2216
token_week)))
2217
# Define starting values
2218
value = datetime.timedelta() # Value so far
2219
found_token = None
2220
followers = frozenset((token_duration,)) # Following valid tokens
2221
s = duration # String left to parse
2222
# Loop until end token is found
2223
while found_token is not token_end:
2224
# Search for any currently valid tokens
2225
for token in followers:
2226
match = token.regexp.match(s)
2227
if match is not None:
2228
# Token found
2229
if token.value is not None:
2230
# Value found, parse digits
2231
factor = int(match.group(1), 10)
2232
# Add to value so far
2233
value += factor * token.value
2234
# Strip token from string
2235
s = token.regexp.sub("", s, 1)
2236
# Go to found token
2237
found_token = token
2238
# Set valid next tokens
2239
followers = found_token.followers
2240
break
2241
else:
2242
# No currently valid tokens were found
2243
raise ValueError("Invalid RFC 3339 duration")
2244
# End token found
2245
return value
2246
2247
2248
1610
def string_to_delta(interval):
2249
1611
"""Parse a string and return a datetime.timedelta
2250
1612
2261
1623
>>> string_to_delta('5m 30s')
2262
1624
datetime.timedelta(0, 330)
2263
1625
"""
2264
2265
try:
2266
return rfc3339_duration_to_delta(interval)
2267
except ValueError:
2268
pass
2269
2270
1626
timevalue = datetime.timedelta(0)
2271
1627
for s in interval.split():
2272
1628
try:
2273
suffix = s[-1]
1629
suffix = unicode(s[-1])
2274
1630
value = int(s[:-1])
2275
1631
if suffix == "d":
2276
1632
delta = datetime.timedelta(value)
2283
1639
elif suffix == "w":
2284
1640
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2285
1641
else:
2286
raise ValueError("Unknown suffix {!r}".format(suffix))
2287
except IndexError as e:
1642
raise ValueError("Unknown suffix %r" % suffix)
1643
except (ValueError, IndexError) as e:
2288
1644
raise ValueError(*(e.args))
2289
1645
timevalue += delta
2290
1646
return timevalue
2291
1647
2292
1648
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
2293
1673
def daemon(nochdir = False, noclose = False):
2294
1674
"""See daemon(3). Standard BSD Unix function.
2295
1675
2303
1683
sys.exit()
2304
1684
if not noclose:
2305
1685
# Close all standard open file descriptors
2306
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1686
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2307
1687
if not stat.S_ISCHR(os.fstat(null).st_mode):
2308
1688
raise OSError(errno.ENODEV,
2309
"{} not a character device"
2310
.format(os.devnull))
1689
"%s not a character device"
1690
% os.path.devnull)
2311
1691
os.dup2(null, sys.stdin.fileno())
2312
1692
os.dup2(null, sys.stdout.fileno())
2313
1693
os.dup2(null, sys.stderr.fileno())
2322
1702
2323
1703
parser = argparse.ArgumentParser()
2324
1704
parser.add_argument("-v", "--version", action="version",
2325
version = "%(prog)s {}".format(version),
1705
version = "%%(prog)s %s" % version,
2326
1706
help="show version number and exit")
2327
1707
parser.add_argument("-i", "--interface", metavar="IF",
2328
1708
help="Bind to interface IF")
2334
1714
help="Run self-test")
2335
1715
parser.add_argument("--debug", action="store_true",
2336
1716
help="Debug mode; run in foreground and log"
2337
" to terminal", default=None)
1717
" to terminal")
2338
1718
parser.add_argument("--debuglevel", metavar="LEVEL",
2339
1719
help="Debug level for stdout output")
2340
1720
parser.add_argument("--priority", help="GnuTLS"
2347
1727
" files")
2348
1728
parser.add_argument("--no-dbus", action="store_false",
2349
1729
dest="use_dbus", help="Do not provide D-Bus"
2350
" system bus interface", default=None)
1730
" system bus interface")
2351
1731
parser.add_argument("--no-ipv6", action="store_false",
2352
dest="use_ipv6", help="Do not use IPv6",
2353
default=None)
2354
parser.add_argument("--no-restore", action="store_false",
2355
dest="restore", help="Do not restore stored"
2356
" state", default=None)
2357
parser.add_argument("--socket", type=int,
2358
help="Specify a file descriptor to a network"
2359
" socket to use instead of creating one")
2360
parser.add_argument("--statedir", metavar="DIR",
2361
help="Directory to save/restore state in")
2362
parser.add_argument("--foreground", action="store_true",
2363
help="Run in foreground", default=None)
2364
parser.add_argument("--no-zeroconf", action="store_false",
2365
dest="zeroconf", help="Do not use Zeroconf",
2366
default=None)
2367
1732
dest="use_ipv6", help="Do not use IPv6")
2368
1733
options = parser.parse_args()
2369
1734
2370
1735
if options.check:
2371
1736
import doctest
2372
fail_count, test_count = doctest.testmod()
2373
sys.exit(os.EX_OK if fail_count == 0 else 1)
1737
doctest.testmod()
1738
sys.exit()
2374
1739
2375
1740
# Default values for config file for server-global settings
2376
1741
server_defaults = { "interface": "",
2378
1743
"port": "",
2379
1744
"debug": "False",
2380
1745
"priority":
2381
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2382
":+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
1746
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2383
1747
"servicename": "Mandos",
2384
1748
"use_dbus": "True",
2385
1749
"use_ipv6": "True",
2386
1750
"debuglevel": "",
2387
"restore": "True",
2388
"socket": "",
2389
"statedir": "/var/lib/mandos",
2390
"foreground": "False",
2391
"zeroconf": "True",
2392
}
1751
}
2393
1752
2394
1753
# Parse config file for server-global settings
2395
1754
server_config = configparser.SafeConfigParser(server_defaults)
2396
1755
del server_defaults
2397
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1756
server_config.read(os.path.join(options.configdir,
1757
"mandos.conf"))
2398
1758
# Convert the SafeConfigParser object to a dict
2399
1759
server_settings = server_config.defaults()
2400
1760
# Use the appropriate methods on the non-string config options
2401
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
1761
for option in ("debug", "use_dbus", "use_ipv6"):
2402
1762
server_settings[option] = server_config.getboolean("DEFAULT",
2403
1763
option)
2404
1764
if server_settings["port"]:
2405
1765
server_settings["port"] = server_config.getint("DEFAULT",
2406
1766
"port")
2407
if server_settings["socket"]:
2408
server_settings["socket"] = server_config.getint("DEFAULT",
2409
"socket")
2410
# Later, stdin will, and stdout and stderr might, be dup'ed
2411
# over with an opened os.devnull. But we don't want this to
2412
# happen with a supplied network socket.
2413
if 0 <= server_settings["socket"] <= 2:
2414
server_settings["socket"] = os.dup(server_settings
2415
["socket"])
2416
1767
del server_config
2417
1768
2418
1769
# Override the settings from the config file with command line
2419
1770
# options, if set.
2420
1771
for option in ("interface", "address", "port", "debug",
2421
"priority", "servicename", "configdir", "use_dbus",
2422
"use_ipv6", "debuglevel", "restore", "statedir",
2423
"socket", "foreground", "zeroconf"):
1772
"priority", "servicename", "configdir",
1773
"use_dbus", "use_ipv6", "debuglevel"):
2424
1774
value = getattr(options, option)
2425
1775
if value is not None:
2426
1776
server_settings[option] = value
2427
1777
del options
2428
1778
# Force all strings to be unicode
2429
1779
for option in server_settings.keys():
2430
if isinstance(server_settings[option], bytes):
2431
server_settings[option] = (server_settings[option]
2432
.decode("utf-8"))
2433
# Force all boolean options to be boolean
2434
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2435
"foreground", "zeroconf"):
2436
server_settings[option] = bool(server_settings[option])
2437
# Debug implies foreground
2438
if server_settings["debug"]:
2439
server_settings["foreground"] = True
1780
if type(server_settings[option]) is str:
1781
server_settings[option] = unicode(server_settings[option])
2440
1782
# Now we have our good server settings in "server_settings"
2441
1783
2442
1784
##################################################################
2443
1785
2444
if (not server_settings["zeroconf"]
2445
and not (server_settings["port"]
2446
or server_settings["socket"] != "")):
2447
parser.error("Needs port or socket to work without Zeroconf")
2448
2449
1786
# For convenience
2450
1787
debug = server_settings["debug"]
2451
1788
debuglevel = server_settings["debuglevel"]
2452
1789
use_dbus = server_settings["use_dbus"]
2453
1790
use_ipv6 = server_settings["use_ipv6"]
2454
stored_state_path = os.path.join(server_settings["statedir"],
2455
stored_state_file)
2456
foreground = server_settings["foreground"]
2457
zeroconf = server_settings["zeroconf"]
2458
2459
if debug:
2460
initlogger(debug, logging.DEBUG)
2461
else:
2462
if not debuglevel:
2463
initlogger(debug)
2464
else:
2465
level = getattr(logging, debuglevel.upper())
2466
initlogger(debug, level)
2467
1791
2468
1792
if server_settings["servicename"] != "Mandos":
2469
syslogger.setFormatter(
2470
logging.Formatter('Mandos ({}) [%(process)d]:'
2471
' %(levelname)s: %(message)s'.format(
2472
server_settings["servicename"])))
1793
syslogger.setFormatter(logging.Formatter
1794
('Mandos (%s) [%%(process)d]:'
1795
' %%(levelname)s: %%(message)s'
1796
% server_settings["servicename"]))
2473
1797
2474
1798
# Parse config file with clients
2475
client_config = configparser.SafeConfigParser(Client
2476
.client_defaults)
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)
2477
1807
client_config.read(os.path.join(server_settings["configdir"],
2478
1808
"clients.conf"))
2479
1809
2480
1810
global mandos_dbus_service
2481
1811
mandos_dbus_service = None
2482
1812
2483
socketfd = None
2484
if server_settings["socket"] != "":
2485
socketfd = server_settings["socket"]
2486
tcp_server = MandosServer(
2487
(server_settings["address"], server_settings["port"]),
2488
ClientHandler,
2489
interface=(server_settings["interface"] or None),
2490
use_ipv6=use_ipv6,
2491
gnutls_priority=server_settings["priority"],
2492
use_dbus=use_dbus,
2493
socketfd=socketfd)
2494
if not foreground:
2495
pidfilename = "/run/mandos.pid"
2496
if not os.path.isdir("/run/."):
2497
pidfilename = "/var/run/mandos.pid"
2498
pidfile = None
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"
2499
1824
try:
2500
1825
pidfile = open(pidfilename, "w")
2501
except IOError as e:
2502
logger.error("Could not open file %r", pidfilename,
2503
exc_info=e)
1826
except IOError:
1827
logger.error("Could not open file %r", pidfilename)
2504
1828
2505
for name in ("_mandos", "mandos", "nobody"):
1829
try:
1830
uid = pwd.getpwnam("_mandos").pw_uid
1831
gid = pwd.getpwnam("_mandos").pw_gid
1832
except KeyError:
2506
1833
try:
2507
uid = pwd.getpwnam(name).pw_uid
2508
gid = pwd.getpwnam(name).pw_gid
2509
break
1834
uid = pwd.getpwnam("mandos").pw_uid
1835
gid = pwd.getpwnam("mandos").pw_gid
2510
1836
except KeyError:
2511
continue
2512
else:
2513
uid = 65534
2514
gid = 65534
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
2515
1843
try:
2516
1844
os.setgid(gid)
2517
1845
os.setuid(uid)
2518
1846
except OSError as error:
2519
if error.errno != errno.EPERM:
2520
raise
1847
if error[0] != errno.EPERM:
1848
raise error
2521
1849
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
2522
1858
if debug:
2523
1859
# Enable all possible GnuTLS debugging
2524
1860
2530
1866
def debug_gnutls(level, string):
2531
1867
logger.debug("GnuTLS: %s", string[:-1])
2532
1868
2533
gnutls.library.functions.gnutls_global_set_log_function(
2534
debug_gnutls)
1869
(gnutls.library.functions
1870
.gnutls_global_set_log_function(debug_gnutls))
2535
1871
2536
1872
# Redirect stdin so all checkers get /dev/null
2537
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1873
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2538
1874
os.dup2(null, sys.stdin.fileno())
2539
1875
if null > 2:
2540
1876
os.close(null)
1877
else:
1878
# No console logging
1879
logger.removeHandler(console)
2541
1880
2542
1881
# Need to fork before connecting to D-Bus
2543
if not foreground:
1882
if not debug:
2544
1883
# Close all input and output, do double fork, etc.
2545
1884
daemon()
2546
1885
2547
# multiprocessing will use threads, so before we use gobject we
2548
# need to inform gobject that threads will be used.
2549
gobject.threads_init()
2550
2551
1886
global main_loop
2552
1887
# From the Avahi example code
2553
DBusGMainLoop(set_as_default=True)
1888
DBusGMainLoop(set_as_default=True )
2554
1889
main_loop = gobject.MainLoop()
2555
1890
bus = dbus.SystemBus()
2556
1891
# End of Avahi example code
2557
1892
if use_dbus:
2558
1893
try:
2559
bus_name = dbus.service.BusName("se.recompile.Mandos",
2560
bus,
2561
do_not_queue=True)
2562
old_bus_name = dbus.service.BusName(
2563
"se.bsnet.fukt.Mandos", bus,
2564
do_not_queue=True)
1894
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1895
bus, do_not_queue=True)
2565
1896
except dbus.exceptions.NameExistsException as e:
2566
logger.error("Disabling D-Bus:", exc_info=e)
1897
logger.error(unicode(e) + ", disabling D-Bus")
2567
1898
use_dbus = False
2568
1899
server_settings["use_dbus"] = False
2569
1900
tcp_server.use_dbus = False
2570
if zeroconf:
2571
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2572
service = AvahiServiceToSyslog(
2573
name = server_settings["servicename"],
2574
servicetype = "_mandos._tcp",
2575
protocol = protocol,
2576
bus = bus)
2577
if server_settings["interface"]:
2578
service.interface = if_nametoindex(
2579
server_settings["interface"].encode("utf-8"))
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"])))
2580
1908
2581
1909
global multiprocessing_manager
2582
1910
multiprocessing_manager = multiprocessing.Manager()
2584
1912
client_class = Client
2585
1913
if use_dbus:
2586
1914
client_class = functools.partial(ClientDBus, bus = bus)
2587
2588
client_settings = Client.config_parser(client_config)
2589
old_client_settings = {}
2590
clients_data = {}
2591
2592
# This is used to redirect stdout and stderr for checker processes
2593
global wnull
2594
wnull = open(os.devnull, "w") # A writable /dev/null
2595
# Only used if server is running in foreground but not in debug
2596
# mode
2597
if debug or not foreground:
2598
wnull.close()
2599
2600
# Get client data and settings from last running state.
2601
if server_settings["restore"]:
2602
try:
2603
with open(stored_state_path, "rb") as stored_state:
2604
clients_data, old_client_settings = pickle.load(
2605
stored_state)
2606
os.remove(stored_state_path)
2607
except IOError as e:
2608
if e.errno == errno.ENOENT:
2609
logger.warning("Could not load persistent state:"
2610
" {}".format(os.strerror(e.errno)))
2611
else:
2612
logger.critical("Could not load persistent state:",
2613
exc_info=e)
2614
raise
2615
except EOFError as e:
2616
logger.warning("Could not load persistent state: "
2617
"EOFError:",
2618
exc_info=e)
2619
2620
with PGPEngine() as pgp:
2621
for client_name, client in clients_data.items():
2622
# Skip removed clients
2623
if client_name not in client_settings:
2624
continue
2625
2626
# Decide which value to use after restoring saved state.
2627
# We have three different values: Old config file,
2628
# new config file, and saved state.
2629
# New config value takes precedence if it differs from old
2630
# config value, otherwise use saved state.
2631
for name, value in client_settings[client_name].items():
2632
try:
2633
# For each value in new config, check if it
2634
# differs from the old config value (Except for
2635
# the "secret" attribute)
2636
if (name != "secret"
2637
and (value !=
2638
old_client_settings[client_name][name])):
2639
client[name] = value
2640
except KeyError:
2641
pass
2642
2643
# Clients who has passed its expire date can still be
2644
# enabled if its last checker was successful. A Client
2645
# whose checker succeeded before we stored its state is
2646
# assumed to have successfully run all checkers during
2647
# downtime.
2648
if client["enabled"]:
2649
if datetime.datetime.utcnow() >= client["expires"]:
2650
if not client["last_checked_ok"]:
2651
logger.warning(
2652
"disabling client {} - Client never "
2653
"performed a successful checker".format(
2654
client_name))
2655
client["enabled"] = False
2656
elif client["last_checker_status"] != 0:
2657
logger.warning(
2658
"disabling client {} - Client last"
2659
" checker failed with error code"
2660
" {}".format(
2661
client_name,
2662
client["last_checker_status"]))
2663
client["enabled"] = False
2664
else:
2665
client["expires"] = (
2666
datetime.datetime.utcnow()
2667
+ client["timeout"])
2668
logger.debug("Last checker succeeded,"
2669
" keeping {} enabled".format(
2670
client_name))
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):
2671
1922
try:
2672
client["secret"] = pgp.decrypt(
2673
client["encrypted_secret"],
2674
client_settings[client_name]["secret"])
2675
except PGPError:
2676
# If decryption fails, we use secret from new settings
2677
logger.debug("Failed to decrypt {} old secret".format(
2678
client_name))
2679
client["secret"] = (client_settings[client_name]
2680
["secret"])
2681
2682
# Add/remove clients based on new changes made to config
2683
for client_name in (set(old_client_settings)
2684
- set(client_settings)):
2685
del clients_data[client_name]
2686
for client_name in (set(client_settings)
2687
- set(old_client_settings)):
2688
clients_data[client_name] = client_settings[client_name]
2689
2690
# Create all client objects
2691
for client_name, client in clients_data.items():
2692
tcp_server.clients[client_name] = client_class(
2693
name = client_name,
2694
settings = client,
2695
server_settings = server_settings)
2696
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()))
2697
1932
if not tcp_server.clients:
2698
1933
logger.warning("No clients defined")
2699
2700
if not foreground:
2701
if pidfile is not None:
2702
try:
2703
with pidfile:
2704
pid = os.getpid()
2705
pidfile.write("{}\n".format(pid).encode("utf-8"))
2706
except IOError:
2707
logger.error("Could not write to file %r with PID %d",
2708
pidfilename, pid)
2709
del pidfile
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
2710
1947
del pidfilename
2711
1948
1949
signal.signal(signal.SIGINT, signal.SIG_IGN)
1950
2712
1951
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2713
1952
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2714
1953
2715
1954
if use_dbus:
2716
2717
@alternate_dbus_interfaces(
2718
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2719
class MandosDBusService(DBusObjectWithProperties):
1955
class MandosDBusService(dbus.service.Object):
2720
1956
"""A D-Bus proxy object"""
2721
2722
1957
def __init__(self):
2723
1958
dbus.service.Object.__init__(self, bus, "/")
2724
2725
_interface = "se.recompile.Mandos"
2726
2727
@dbus_interface_annotations(_interface)
2728
def _foo(self):
2729
return {
2730
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2731
"false" }
1959
_interface = "se.bsnet.fukt.Mandos"
2732
1960
2733
1961
@dbus.service.signal(_interface, signature="o")
2734
1962
def ClientAdded(self, objpath):
2748
1976
@dbus.service.method(_interface, out_signature="ao")
2749
1977
def GetAllClients(self):
2750
1978
"D-Bus method"
2751
return dbus.Array(c.dbus_object_path for c in
2752
tcp_server.clients.itervalues())
1979
return dbus.Array(c.dbus_object_path
1980
for c in tcp_server.clients)
2753
1981
2754
1982
@dbus.service.method(_interface,
2755
1983
out_signature="a{oa{sv}}")
2756
1984
def GetAllClientsWithProperties(self):
2757
1985
"D-Bus method"
2758
1986
return dbus.Dictionary(
2759
{ c.dbus_object_path: c.GetAll("")
2760
for c in tcp_server.clients.itervalues() },
1987
((c.dbus_object_path, c.GetAll(""))
1988
for c in tcp_server.clients),
2761
1989
signature="oa{sv}")
2762
1990
2763
1991
@dbus.service.method(_interface, in_signature="o")
2764
1992
def RemoveClient(self, object_path):
2765
1993
"D-Bus method"
2766
for c in tcp_server.clients.itervalues():
1994
for c in tcp_server.clients:
2767
1995
if c.dbus_object_path == object_path:
2768
del tcp_server.clients[c.name]
1996
tcp_server.clients.remove(c)
2769
1997
c.remove_from_connection()
2770
1998
# Don't signal anything except ClientRemoved
2771
1999
c.disable(quiet=True)
2780
2008
2781
2009
def cleanup():
2782
2010
"Cleanup function; run on exit"
2783
if zeroconf:
2784
service.cleanup()
2785
2786
multiprocessing.active_children()
2787
wnull.close()
2788
if not (tcp_server.clients or client_settings):
2789
return
2790
2791
# Store client before exiting. Secrets are encrypted with key
2792
# based on what config file has. If config file is
2793
# removed/edited, old secret will thus be unrecovable.
2794
clients = {}
2795
with PGPEngine() as pgp:
2796
for client in tcp_server.clients.itervalues():
2797
key = client_settings[client.name]["secret"]
2798
client.encrypted_secret = pgp.encrypt(client.secret,
2799
key)
2800
client_dict = {}
2801
2802
# A list of attributes that can not be pickled
2803
# + secret.
2804
exclude = { "bus", "changedstate", "secret",
2805
"checker", "server_settings" }
2806
for name, typ in inspect.getmembers(dbus.service
2807
.Object):
2808
exclude.add(name)
2809
2810
client_dict["encrypted_secret"] = (client
2811
.encrypted_secret)
2812
for attr in client.client_structure:
2813
if attr not in exclude:
2814
client_dict[attr] = getattr(client, attr)
2815
2816
clients[client.name] = client_dict
2817
del client_settings[client.name]["secret"]
2818
2819
try:
2820
with tempfile.NamedTemporaryFile(
2821
mode='wb',
2822
suffix=".pickle",
2823
prefix='clients-',
2824
dir=os.path.dirname(stored_state_path),
2825
delete=False) as stored_state:
2826
pickle.dump((clients, client_settings), stored_state)
2827
tempname = stored_state.name
2828
os.rename(tempname, stored_state_path)
2829
except (IOError, OSError) as e:
2830
if not debug:
2831
try:
2832
os.remove(tempname)
2833
except NameError:
2834
pass
2835
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2836
logger.warning("Could not save persistent state: {}"
2837
.format(os.strerror(e.errno)))
2838
else:
2839
logger.warning("Could not save persistent state:",
2840
exc_info=e)
2841
raise
2842
2843
# Delete all clients, and settings from config
2011
service.cleanup()
2012
2844
2013
while tcp_server.clients:
2845
name, client = tcp_server.clients.popitem()
2014
client = tcp_server.clients.pop()
2846
2015
if use_dbus:
2847
2016
client.remove_from_connection()
2017
client.disable_hook = None
2848
2018
# Don't signal anything except ClientRemoved
2849
2019
client.disable(quiet=True)
2850
2020
if use_dbus:
2851
2021
# Emit D-Bus signal
2852
mandos_dbus_service.ClientRemoved(
2853
client.dbus_object_path, client.name)
2854
client_settings.clear()
2022
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2023
client.name)
2855
2024
2856
2025
atexit.register(cleanup)
2857
2026
2858
for client in tcp_server.clients.itervalues():
2027
for client in tcp_server.clients:
2859
2028
if use_dbus:
2860
2029
# Emit D-Bus signal
2861
2030
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2862
# Need to initiate checking of clients
2863
if client.enabled:
2864
client.init_checker()
2031
client.enable()
2865
2032
2866
2033
tcp_server.enable()
2867
2034
tcp_server.server_activate()
2868
2035
2869
2036
# Find out what port we got
2870
if zeroconf:
2871
service.port = tcp_server.socket.getsockname()[1]
2037
service.port = tcp_server.socket.getsockname()[1]
2872
2038
if use_ipv6:
2873
2039
logger.info("Now listening on address %r, port %d,"
2874
" flowinfo %d, scope_id %d",
2875
*tcp_server.socket.getsockname())
2040
" flowinfo %d, scope_id %d"
2041
% tcp_server.socket.getsockname())
2876
2042
else: # IPv4
2877
logger.info("Now listening on address %r, port %d",
2878
*tcp_server.socket.getsockname())
2043
logger.info("Now listening on address %r, port %d"
2044
% tcp_server.socket.getsockname())
2879
2045
2880
2046
#service.interface = tcp_server.socket.getsockname()[3]
2881
2047
2882
2048
try:
2883
if zeroconf:
2884
# From the Avahi example code
2885
try:
2886
service.activate()
2887
except dbus.exceptions.DBusException as error:
2888
logger.critical("D-Bus Exception", exc_info=error)
2889
cleanup()
2890
sys.exit(1)
2891
# End of Avahi example code
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
2892
2057
2893
2058
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2894
2059
lambda *args, **kwargs:
2898
2063
logger.debug("Starting main loop")
2899
2064
main_loop.run()
2900
2065
except AvahiError as error:
2901
logger.critical("Avahi Error", exc_info=error)
2066
logger.critical("AvahiError: %s", error)
2902
2067
cleanup()
2903
2068
sys.exit(1)
2904
2069
except KeyboardInterrupt:
2909
2074
# Must run before the D-Bus bus name gets deregistered
2910
2075
cleanup()
2911
2076
2912
2913
2077
if __name__ == '__main__':
2914
2078
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0