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- Committer: Teddy Hogeborn
- Date: 2012-06-17 14:55:31 UTC
- mto: (301.1.1 release) (237.7.272 trunk)
- mto: This revision was merged to the branch mainline in revision 302.
- Revision ID: teddy@recompile.se-20120617145531-o24z982oerm6xb6s
* mandos: New "--foreground" option.
- files added:
- DBUS-API
- debian/source
- network-hooks.d
- files removed:
- plugins.d/plymouth
- files modified:
- .bzrignore
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 Björn Påhlsson
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# Copyright © 2008-2012 Teddy Hogeborn
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# Copyright © 2008-2012 Björn Påhlsson
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16
#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
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30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
31
# Contact the authors at <mandos@recompile.se>.
32
32
#
33
33
34
from __future__ import division, with_statement, absolute_import
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
37
from future_builtins import *
35
38
36
39
import SocketServer as socketserver
37
40
import socket
38
import optparse
41
import argparse
39
42
import datetime
40
43
import errno
41
44
import gnutls.crypto
61
64
import functools
62
65
import cPickle as pickle
63
66
import multiprocessing
67
import types
68
import binascii
69
import tempfile
70
import itertools
64
71
65
72
import dbus
66
73
import dbus.service
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78
import ctypes.util
72
79
import xml.dom.minidom
73
80
import inspect
81
import GnuPGInterface
74
82
75
83
try:
76
84
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
80
88
except ImportError:
81
89
SO_BINDTODEVICE = None
82
90
83
84
version = "1.0.14"
85
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
91
version = "1.5.5"
92
stored_state_file = "clients.pickle"
93
94
logger = logging.getLogger()
88
95
syslogger = (logging.handlers.SysLogHandler
89
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
90
address = "/dev/log"))
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
93
u' %(message)s'))
94
logger.addHandler(syslogger)
95
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
98
u' %(levelname)s:'
99
u' %(message)s'))
100
logger.addHandler(console)
97
address = str("/dev/log")))
98
99
try:
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
103
except (OSError, AttributeError):
104
def if_nametoindex(interface):
105
"Get an interface index the hard way, i.e. using fcntl()"
106
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
107
with contextlib.closing(socket.socket()) as s:
108
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
112
ifreq[16:20])[0]
113
return interface_index
114
115
116
def initlogger(debug, level=logging.WARNING):
117
"""init logger and add loglevel"""
118
119
syslogger.setFormatter(logging.Formatter
120
('Mandos [%(process)d]: %(levelname)s:'
121
' %(message)s'))
122
logger.addHandler(syslogger)
123
124
if debug:
125
console = logging.StreamHandler()
126
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
127
' [%(process)d]:'
128
' %(levelname)s:'
129
' %(message)s'))
130
logger.addHandler(console)
131
logger.setLevel(level)
132
133
134
class PGPError(Exception):
135
"""Exception if encryption/decryption fails"""
136
pass
137
138
139
class PGPEngine(object):
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
141
def __init__(self):
142
self.gnupg = GnuPGInterface.GnuPG()
143
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
144
self.gnupg = GnuPGInterface.GnuPG()
145
self.gnupg.options.meta_interactive = False
146
self.gnupg.options.homedir = self.tempdir
147
self.gnupg.options.extra_args.extend(['--force-mdc',
148
'--quiet',
149
'--no-use-agent'])
150
151
def __enter__(self):
152
return self
153
154
def __exit__(self, exc_type, exc_value, traceback):
155
self._cleanup()
156
return False
157
158
def __del__(self):
159
self._cleanup()
160
161
def _cleanup(self):
162
if self.tempdir is not None:
163
# Delete contents of tempdir
164
for root, dirs, files in os.walk(self.tempdir,
165
topdown = False):
166
for filename in files:
167
os.remove(os.path.join(root, filename))
168
for dirname in dirs:
169
os.rmdir(os.path.join(root, dirname))
170
# Remove tempdir
171
os.rmdir(self.tempdir)
172
self.tempdir = None
173
174
def password_encode(self, password):
175
# Passphrase can not be empty and can not contain newlines or
176
# NUL bytes. So we prefix it and hex encode it.
177
return b"mandos" + binascii.hexlify(password)
178
179
def encrypt(self, data, password):
180
self.gnupg.passphrase = self.password_encode(password)
181
with open(os.devnull, "w") as devnull:
182
try:
183
proc = self.gnupg.run(['--symmetric'],
184
create_fhs=['stdin', 'stdout'],
185
attach_fhs={'stderr': devnull})
186
with contextlib.closing(proc.handles['stdin']) as f:
187
f.write(data)
188
with contextlib.closing(proc.handles['stdout']) as f:
189
ciphertext = f.read()
190
proc.wait()
191
except IOError as e:
192
raise PGPError(e)
193
self.gnupg.passphrase = None
194
return ciphertext
195
196
def decrypt(self, data, password):
197
self.gnupg.passphrase = self.password_encode(password)
198
with open(os.devnull, "w") as devnull:
199
try:
200
proc = self.gnupg.run(['--decrypt'],
201
create_fhs=['stdin', 'stdout'],
202
attach_fhs={'stderr': devnull})
203
with contextlib.closing(proc.handles['stdin']) as f:
204
f.write(data)
205
with contextlib.closing(proc.handles['stdout']) as f:
206
decrypted_plaintext = f.read()
207
proc.wait()
208
except IOError as e:
209
raise PGPError(e)
210
self.gnupg.passphrase = None
211
return decrypted_plaintext
212
101
213
102
214
class AvahiError(Exception):
103
215
def __init__(self, value, *args, **kwargs):
119
231
Attributes:
120
232
interface: integer; avahi.IF_UNSPEC or an interface index.
121
233
Used to optionally bind to the specified interface.
122
name: string; Example: u'Mandos'
123
type: string; Example: u'_mandos._tcp'.
234
name: string; Example: 'Mandos'
235
type: string; Example: '_mandos._tcp'.
124
236
See <http://www.dns-sd.org/ServiceTypes.html>
125
237
port: integer; what port to announce
126
238
TXT: list of strings; TXT record for the service
133
245
server: D-Bus Server
134
246
bus: dbus.SystemBus()
135
247
"""
248
136
249
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
137
250
servicetype = None, port = None, TXT = None,
138
domain = u"", host = u"", max_renames = 32768,
251
domain = "", host = "", max_renames = 32768,
139
252
protocol = avahi.PROTO_UNSPEC, bus = None):
140
253
self.interface = interface
141
254
self.name = name
150
263
self.group = None # our entry group
151
264
self.server = None
152
265
self.bus = bus
266
self.entry_group_state_changed_match = None
267
153
268
def rename(self):
154
269
"""Derived from the Avahi example code"""
155
270
if self.rename_count >= self.max_renames:
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
271
logger.critical("No suitable Zeroconf service name found"
272
" after %i retries, exiting.",
158
273
self.rename_count)
159
raise AvahiServiceError(u"Too many renames")
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
161
logger.info(u"Changing Zeroconf service name to %r ...",
274
raise AvahiServiceError("Too many renames")
275
self.name = unicode(self.server
276
.GetAlternativeServiceName(self.name))
277
logger.info("Changing Zeroconf service name to %r ...",
162
278
self.name)
163
syslogger.setFormatter(logging.Formatter
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
166
% self.name))
167
279
self.remove()
168
self.add()
280
try:
281
self.add()
282
except dbus.exceptions.DBusException as error:
283
logger.critical("D-Bus Exception", exc_info=error)
284
self.cleanup()
285
os._exit(1)
169
286
self.rename_count += 1
287
170
288
def remove(self):
171
289
"""Derived from the Avahi example code"""
290
if self.entry_group_state_changed_match is not None:
291
self.entry_group_state_changed_match.remove()
292
self.entry_group_state_changed_match = None
172
293
if self.group is not None:
173
294
self.group.Reset()
295
174
296
def add(self):
175
297
"""Derived from the Avahi example code"""
298
self.remove()
176
299
if self.group is None:
177
300
self.group = dbus.Interface(
178
301
self.bus.get_object(avahi.DBUS_NAME,
179
302
self.server.EntryGroupNew()),
180
303
avahi.DBUS_INTERFACE_ENTRY_GROUP)
181
self.group.connect_to_signal('StateChanged',
182
self
183
.entry_group_state_changed)
184
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
304
self.entry_group_state_changed_match = (
305
self.group.connect_to_signal(
306
'StateChanged', self.entry_group_state_changed))
307
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
185
308
self.name, self.type)
186
309
self.group.AddService(
187
310
self.interface,
192
315
dbus.UInt16(self.port),
193
316
avahi.string_array_to_txt_array(self.TXT))
194
317
self.group.Commit()
318
195
319
def entry_group_state_changed(self, state, error):
196
320
"""Derived from the Avahi example code"""
197
logger.debug(u"Avahi entry group state change: %i", state)
321
logger.debug("Avahi entry group state change: %i", state)
198
322
199
323
if state == avahi.ENTRY_GROUP_ESTABLISHED:
200
logger.debug(u"Zeroconf service established.")
324
logger.debug("Zeroconf service established.")
201
325
elif state == avahi.ENTRY_GROUP_COLLISION:
202
logger.warning(u"Zeroconf service name collision.")
326
logger.info("Zeroconf service name collision.")
203
327
self.rename()
204
328
elif state == avahi.ENTRY_GROUP_FAILURE:
205
logger.critical(u"Avahi: Error in group state changed %s",
329
logger.critical("Avahi: Error in group state changed %s",
206
330
unicode(error))
207
raise AvahiGroupError(u"State changed: %s"
208
% unicode(error))
331
raise AvahiGroupError("State changed: {0!s}"
332
.format(error))
333
209
334
def cleanup(self):
210
335
"""Derived from the Avahi example code"""
211
336
if self.group is not None:
212
self.group.Free()
337
try:
338
self.group.Free()
339
except (dbus.exceptions.UnknownMethodException,
340
dbus.exceptions.DBusException):
341
pass
213
342
self.group = None
214
def server_state_changed(self, state):
343
self.remove()
344
345
def server_state_changed(self, state, error=None):
215
346
"""Derived from the Avahi example code"""
216
logger.debug(u"Avahi server state change: %i", state)
217
if state == avahi.SERVER_COLLISION:
218
logger.error(u"Zeroconf server name collision")
219
self.remove()
347
logger.debug("Avahi server state change: %i", state)
348
bad_states = { avahi.SERVER_INVALID:
349
"Zeroconf server invalid",
350
avahi.SERVER_REGISTERING: None,
351
avahi.SERVER_COLLISION:
352
"Zeroconf server name collision",
353
avahi.SERVER_FAILURE:
354
"Zeroconf server failure" }
355
if state in bad_states:
356
if bad_states[state] is not None:
357
if error is None:
358
logger.error(bad_states[state])
359
else:
360
logger.error(bad_states[state] + ": %r", error)
361
self.cleanup()
220
362
elif state == avahi.SERVER_RUNNING:
221
363
self.add()
364
else:
365
if error is None:
366
logger.debug("Unknown state: %r", state)
367
else:
368
logger.debug("Unknown state: %r: %r", state, error)
369
222
370
def activate(self):
223
371
"""Derived from the Avahi example code"""
224
372
if self.server is None:
225
373
self.server = dbus.Interface(
226
374
self.bus.get_object(avahi.DBUS_NAME,
227
avahi.DBUS_PATH_SERVER),
375
avahi.DBUS_PATH_SERVER,
376
follow_name_owner_changes=True),
228
377
avahi.DBUS_INTERFACE_SERVER)
229
self.server.connect_to_signal(u"StateChanged",
378
self.server.connect_to_signal("StateChanged",
230
379
self.server_state_changed)
231
380
self.server_state_changed(self.server.GetState())
232
381
233
382
383
class AvahiServiceToSyslog(AvahiService):
384
def rename(self):
385
"""Add the new name to the syslog messages"""
386
ret = AvahiService.rename(self)
387
syslogger.setFormatter(logging.Formatter
388
('Mandos ({0}) [%(process)d]:'
389
' %(levelname)s: %(message)s'
390
.format(self.name)))
391
return ret
392
393
394
def timedelta_to_milliseconds(td):
395
"Convert a datetime.timedelta() to milliseconds"
396
return ((td.days * 24 * 60 * 60 * 1000)
397
+ (td.seconds * 1000)
398
+ (td.microseconds // 1000))
399
400
234
401
class Client(object):
235
402
"""A representation of a client host served by this server.
236
403
237
404
Attributes:
238
name: string; from the config file, used in log messages and
239
D-Bus identifiers
405
approved: bool(); 'None' if not yet approved/disapproved
406
approval_delay: datetime.timedelta(); Time to wait for approval
407
approval_duration: datetime.timedelta(); Duration of one approval
408
checker: subprocess.Popen(); a running checker process used
409
to see if the client lives.
410
'None' if no process is running.
411
checker_callback_tag: a gobject event source tag, or None
412
checker_command: string; External command which is run to check
413
if client lives. %() expansions are done at
414
runtime with vars(self) as dict, so that for
415
instance %(name)s can be used in the command.
416
checker_initiator_tag: a gobject event source tag, or None
417
created: datetime.datetime(); (UTC) object creation
418
client_structure: Object describing what attributes a client has
419
and is used for storing the client at exit
420
current_checker_command: string; current running checker_command
421
disable_initiator_tag: a gobject event source tag, or None
422
enabled: bool()
240
423
fingerprint: string (40 or 32 hexadecimal digits); used to
241
424
uniquely identify the client
242
secret: bytestring; sent verbatim (over TLS) to client
243
425
host: string; available for use by the checker command
244
created: datetime.datetime(); (UTC) object creation
245
last_enabled: datetime.datetime(); (UTC)
246
enabled: bool()
426
interval: datetime.timedelta(); How often to start a new checker
427
last_approval_request: datetime.datetime(); (UTC) or None
247
428
last_checked_ok: datetime.datetime(); (UTC) or None
429
last_checker_status: integer between 0 and 255 reflecting exit
430
status of last checker. -1 reflects crashed
431
checker, -2 means no checker completed yet.
432
last_enabled: datetime.datetime(); (UTC) or None
433
name: string; from the config file, used in log messages and
434
D-Bus identifiers
435
secret: bytestring; sent verbatim (over TLS) to client
248
436
timeout: datetime.timedelta(); How long from last_checked_ok
249
437
until this client is disabled
250
interval: datetime.timedelta(); How often to start a new checker
251
disable_hook: If set, called by disable() as disable_hook(self)
252
checker: subprocess.Popen(); a running checker process used
253
to see if the client lives.
254
'None' if no process is running.
255
checker_initiator_tag: a gobject event source tag, or None
256
disable_initiator_tag: - '' -
257
checker_callback_tag: - '' -
258
checker_command: string; External command which is run to check if
259
client lives. %() expansions are done at
260
runtime with vars(self) as dict, so that for
261
instance %(name)s can be used in the command.
262
current_checker_command: string; current running checker_command
263
approved_delay: datetime.timedelta(); Time to wait for approval
264
_approved: bool(); 'None' if not yet approved/disapproved
265
approved_duration: datetime.timedelta(); Duration of one approval
438
extended_timeout: extra long timeout when secret has been sent
439
runtime_expansions: Allowed attributes for runtime expansion.
440
expires: datetime.datetime(); time (UTC) when a client will be
441
disabled, or None
266
442
"""
267
443
268
@staticmethod
269
def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
444
runtime_expansions = ("approval_delay", "approval_duration",
445
"created", "enabled", "expires",
446
"fingerprint", "host", "interval",
447
"last_approval_request", "last_checked_ok",
448
"last_enabled", "name", "timeout")
449
client_defaults = { "timeout": "5m",
450
"extended_timeout": "15m",
451
"interval": "2m",
452
"checker": "fping -q -- %%(host)s",
453
"host": "",
454
"approval_delay": "0s",
455
"approval_duration": "1s",
456
"approved_by_default": "True",
457
"enabled": "True",
458
}
274
459
275
460
def timeout_milliseconds(self):
276
461
"Return the 'timeout' attribute in milliseconds"
277
return self._timedelta_to_milliseconds(self.timeout)
462
return timedelta_to_milliseconds(self.timeout)
463
464
def extended_timeout_milliseconds(self):
465
"Return the 'extended_timeout' attribute in milliseconds"
466
return timedelta_to_milliseconds(self.extended_timeout)
278
467
279
468
def interval_milliseconds(self):
280
469
"Return the 'interval' attribute in milliseconds"
281
return self._timedelta_to_milliseconds(self.interval)
282
283
def approved_delay_milliseconds(self):
284
return self._timedelta_to_milliseconds(self.approved_delay)
285
286
def __init__(self, name = None, disable_hook=None, config=None):
287
"""Note: the 'checker' key in 'config' sets the
288
'checker_command' attribute and *not* the 'checker'
289
attribute."""
470
return timedelta_to_milliseconds(self.interval)
471
472
def approval_delay_milliseconds(self):
473
return timedelta_to_milliseconds(self.approval_delay)
474
475
@staticmethod
476
def config_parser(config):
477
"""Construct a new dict of client settings of this form:
478
{ client_name: {setting_name: value, ...}, ...}
479
with exceptions for any special settings as defined above.
480
NOTE: Must be a pure function. Must return the same result
481
value given the same arguments.
482
"""
483
settings = {}
484
for client_name in config.sections():
485
section = dict(config.items(client_name))
486
client = settings[client_name] = {}
487
488
client["host"] = section["host"]
489
# Reformat values from string types to Python types
490
client["approved_by_default"] = config.getboolean(
491
client_name, "approved_by_default")
492
client["enabled"] = config.getboolean(client_name,
493
"enabled")
494
495
client["fingerprint"] = (section["fingerprint"].upper()
496
.replace(" ", ""))
497
if "secret" in section:
498
client["secret"] = section["secret"].decode("base64")
499
elif "secfile" in section:
500
with open(os.path.expanduser(os.path.expandvars
501
(section["secfile"])),
502
"rb") as secfile:
503
client["secret"] = secfile.read()
504
else:
505
raise TypeError("No secret or secfile for section {0}"
506
.format(section))
507
client["timeout"] = string_to_delta(section["timeout"])
508
client["extended_timeout"] = string_to_delta(
509
section["extended_timeout"])
510
client["interval"] = string_to_delta(section["interval"])
511
client["approval_delay"] = string_to_delta(
512
section["approval_delay"])
513
client["approval_duration"] = string_to_delta(
514
section["approval_duration"])
515
client["checker_command"] = section["checker"]
516
client["last_approval_request"] = None
517
client["last_checked_ok"] = None
518
client["last_checker_status"] = -2
519
520
return settings
521
522
def __init__(self, settings, name = None):
290
523
self.name = name
291
if config is None:
292
config = {}
293
logger.debug(u"Creating client %r", self.name)
524
# adding all client settings
525
for setting, value in settings.iteritems():
526
setattr(self, setting, value)
527
528
if self.enabled:
529
if not hasattr(self, "last_enabled"):
530
self.last_enabled = datetime.datetime.utcnow()
531
if not hasattr(self, "expires"):
532
self.expires = (datetime.datetime.utcnow()
533
+ self.timeout)
534
else:
535
self.last_enabled = None
536
self.expires = None
537
538
logger.debug("Creating client %r", self.name)
294
539
# Uppercase and remove spaces from fingerprint for later
295
540
# comparison purposes with return value from the fingerprint()
296
541
# function
297
self.fingerprint = (config[u"fingerprint"].upper()
298
.replace(u" ", u""))
299
logger.debug(u" Fingerprint: %s", self.fingerprint)
300
if u"secret" in config:
301
self.secret = config[u"secret"].decode(u"base64")
302
elif u"secfile" in config:
303
with open(os.path.expanduser(os.path.expandvars
304
(config[u"secfile"])),
305
"rb") as secfile:
306
self.secret = secfile.read()
307
else:
308
raise TypeError(u"No secret or secfile for client %s"
309
% self.name)
310
self.host = config.get(u"host", u"")
311
self.created = datetime.datetime.utcnow()
312
self.enabled = False
313
self.last_enabled = None
314
self.last_checked_ok = None
315
self.timeout = string_to_delta(config[u"timeout"])
316
self.interval = string_to_delta(config[u"interval"])
317
self.disable_hook = disable_hook
542
logger.debug(" Fingerprint: %s", self.fingerprint)
543
self.created = settings.get("created",
544
datetime.datetime.utcnow())
545
546
# attributes specific for this server instance
318
547
self.checker = None
319
548
self.checker_initiator_tag = None
320
549
self.disable_initiator_tag = None
321
550
self.checker_callback_tag = None
322
self.checker_command = config[u"checker"]
323
551
self.current_checker_command = None
324
self.last_connect = None
325
self._approved = None
326
self.approved_by_default = config.get(u"approved_by_default",
327
True)
552
self.approved = None
328
553
self.approvals_pending = 0
329
self.approved_delay = string_to_delta(
330
config[u"approved_delay"])
331
self.approved_duration = string_to_delta(
332
config[u"approved_duration"])
333
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
554
self.changedstate = (multiprocessing_manager
555
.Condition(multiprocessing_manager
556
.Lock()))
557
self.client_structure = [attr for attr in
558
self.__dict__.iterkeys()
559
if not attr.startswith("_")]
560
self.client_structure.append("client_structure")
561
562
for name, t in inspect.getmembers(type(self),
563
lambda obj:
564
isinstance(obj,
565
property)):
566
if not name.startswith("_"):
567
self.client_structure.append(name)
334
568
569
# Send notice to process children that client state has changed
335
570
def send_changedstate(self):
336
self.changedstate.acquire()
337
self.changedstate.notify_all()
338
self.changedstate.release()
339
571
with self.changedstate:
572
self.changedstate.notify_all()
573
340
574
def enable(self):
341
575
"""Start this client's checker and timeout hooks"""
342
if getattr(self, u"enabled", False):
576
if getattr(self, "enabled", False):
343
577
# Already enabled
344
578
return
345
self.send_changedstate()
579
self.expires = datetime.datetime.utcnow() + self.timeout
580
self.enabled = True
346
581
self.last_enabled = datetime.datetime.utcnow()
582
self.init_checker()
583
self.send_changedstate()
584
585
def disable(self, quiet=True):
586
"""Disable this client."""
587
if not getattr(self, "enabled", False):
588
return False
589
if not quiet:
590
logger.info("Disabling client %s", self.name)
591
if getattr(self, "disable_initiator_tag", None) is not None:
592
gobject.source_remove(self.disable_initiator_tag)
593
self.disable_initiator_tag = None
594
self.expires = None
595
if getattr(self, "checker_initiator_tag", None) is not None:
596
gobject.source_remove(self.checker_initiator_tag)
597
self.checker_initiator_tag = None
598
self.stop_checker()
599
self.enabled = False
600
if not quiet:
601
self.send_changedstate()
602
# Do not run this again if called by a gobject.timeout_add
603
return False
604
605
def __del__(self):
606
self.disable()
607
608
def init_checker(self):
347
609
# Schedule a new checker to be started an 'interval' from now,
348
610
# and every interval from then on.
611
if self.checker_initiator_tag is not None:
612
gobject.source_remove(self.checker_initiator_tag)
349
613
self.checker_initiator_tag = (gobject.timeout_add
350
614
(self.interval_milliseconds(),
351
615
self.start_checker))
352
616
# Schedule a disable() when 'timeout' has passed
617
if self.disable_initiator_tag is not None:
618
gobject.source_remove(self.disable_initiator_tag)
353
619
self.disable_initiator_tag = (gobject.timeout_add
354
620
(self.timeout_milliseconds(),
355
621
self.disable))
356
self.enabled = True
357
622
# Also start a new checker *right now*.
358
623
self.start_checker()
359
624
360
def disable(self, quiet=True):
361
"""Disable this client."""
362
if not getattr(self, "enabled", False):
363
return False
364
if not quiet:
365
self.send_changedstate()
366
if not quiet:
367
logger.info(u"Disabling client %s", self.name)
368
if getattr(self, u"disable_initiator_tag", False):
369
gobject.source_remove(self.disable_initiator_tag)
370
self.disable_initiator_tag = None
371
if getattr(self, u"checker_initiator_tag", False):
372
gobject.source_remove(self.checker_initiator_tag)
373
self.checker_initiator_tag = None
374
self.stop_checker()
375
if self.disable_hook:
376
self.disable_hook(self)
377
self.enabled = False
378
# Do not run this again if called by a gobject.timeout_add
379
return False
380
381
def __del__(self):
382
self.disable_hook = None
383
self.disable()
384
385
625
def checker_callback(self, pid, condition, command):
386
626
"""The checker has completed, so take appropriate actions."""
387
627
self.checker_callback_tag = None
388
628
self.checker = None
389
629
if os.WIFEXITED(condition):
390
exitstatus = os.WEXITSTATUS(condition)
391
if exitstatus == 0:
392
logger.info(u"Checker for %(name)s succeeded",
630
self.last_checker_status = os.WEXITSTATUS(condition)
631
if self.last_checker_status == 0:
632
logger.info("Checker for %(name)s succeeded",
393
633
vars(self))
394
634
self.checked_ok()
395
635
else:
396
logger.info(u"Checker for %(name)s failed",
636
logger.info("Checker for %(name)s failed",
397
637
vars(self))
398
638
else:
399
logger.warning(u"Checker for %(name)s crashed?",
639
self.last_checker_status = -1
640
logger.warning("Checker for %(name)s crashed?",
400
641
vars(self))
401
642
402
643
def checked_ok(self):
403
"""Bump up the timeout for this client.
404
405
This should only be called when the client has been seen,
406
alive and well.
407
"""
644
"""Assert that the client has been seen, alive and well."""
408
645
self.last_checked_ok = datetime.datetime.utcnow()
409
gobject.source_remove(self.disable_initiator_tag)
410
self.disable_initiator_tag = (gobject.timeout_add
411
(self.timeout_milliseconds(),
412
self.disable))
646
self.last_checker_status = 0
647
self.bump_timeout()
648
649
def bump_timeout(self, timeout=None):
650
"""Bump up the timeout for this client."""
651
if timeout is None:
652
timeout = self.timeout
653
if self.disable_initiator_tag is not None:
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = None
656
if getattr(self, "enabled", False):
657
self.disable_initiator_tag = (gobject.timeout_add
658
(timedelta_to_milliseconds
659
(timeout), self.disable))
660
self.expires = datetime.datetime.utcnow() + timeout
661
662
def need_approval(self):
663
self.last_approval_request = datetime.datetime.utcnow()
413
664
414
665
def start_checker(self):
415
666
"""Start a new checker subprocess if one is not running.
417
668
If a checker already exists, leave it running and do
418
669
nothing."""
419
670
# The reason for not killing a running checker is that if we
420
# did that, then if a checker (for some reason) started
421
# running slowly and taking more than 'interval' time, the
422
# client would inevitably timeout, since no checker would get
423
# a chance to run to completion. If we instead leave running
671
# did that, and if a checker (for some reason) started running
672
# slowly and taking more than 'interval' time, then the client
673
# would inevitably timeout, since no checker would get a
674
# chance to run to completion. If we instead leave running
424
675
# checkers alone, the checker would have to take more time
425
676
# than 'timeout' for the client to be disabled, which is as it
426
677
# should be.
428
679
# If a checker exists, make sure it is not a zombie
429
680
try:
430
681
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
431
except (AttributeError, OSError), error:
682
except (AttributeError, OSError) as error:
432
683
if (isinstance(error, OSError)
433
684
and error.errno != errno.ECHILD):
434
685
raise error
435
686
else:
436
687
if pid:
437
logger.warning(u"Checker was a zombie")
688
logger.warning("Checker was a zombie")
438
689
gobject.source_remove(self.checker_callback_tag)
439
690
self.checker_callback(pid, status,
440
691
self.current_checker_command)
441
692
# Start a new checker if needed
442
693
if self.checker is None:
694
# Escape attributes for the shell
695
escaped_attrs = dict(
696
(attr, re.escape(unicode(getattr(self, attr))))
697
for attr in
698
self.runtime_expansions)
443
699
try:
444
# In case checker_command has exactly one % operator
445
command = self.checker_command % self.host
446
except TypeError:
447
# Escape attributes for the shell
448
escaped_attrs = dict((key,
449
re.escape(unicode(str(val),
450
errors=
451
u'replace')))
452
for key, val in
453
vars(self).iteritems())
454
try:
455
command = self.checker_command % escaped_attrs
456
except TypeError, error:
457
logger.error(u'Could not format string "%s":'
458
u' %s', self.checker_command, error)
459
return True # Try again later
700
command = self.checker_command % escaped_attrs
701
except TypeError as error:
702
logger.error('Could not format string "%s"',
703
self.checker_command, exc_info=error)
704
return True # Try again later
460
705
self.current_checker_command = command
461
706
try:
462
logger.info(u"Starting checker %r for %s",
707
logger.info("Starting checker %r for %s",
463
708
command, self.name)
464
709
# We don't need to redirect stdout and stderr, since
465
710
# in normal mode, that is already done by daemon(),
467
712
# always replaced by /dev/null.)
468
713
self.checker = subprocess.Popen(command,
469
714
close_fds=True,
470
shell=True, cwd=u"/")
471
self.checker_callback_tag = (gobject.child_watch_add
472
(self.checker.pid,
473
self.checker_callback,
474
data=command))
475
# The checker may have completed before the gobject
476
# watch was added. Check for this.
477
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
478
if pid:
479
gobject.source_remove(self.checker_callback_tag)
480
self.checker_callback(pid, status, command)
481
except OSError, error:
482
logger.error(u"Failed to start subprocess: %s",
483
error)
715
shell=True, cwd="/")
716
except OSError as error:
717
logger.error("Failed to start subprocess",
718
exc_info=error)
719
self.checker_callback_tag = (gobject.child_watch_add
720
(self.checker.pid,
721
self.checker_callback,
722
data=command))
723
# The checker may have completed before the gobject
724
# watch was added. Check for this.
725
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
726
if pid:
727
gobject.source_remove(self.checker_callback_tag)
728
self.checker_callback(pid, status, command)
484
729
# Re-run this periodically if run by gobject.timeout_add
485
730
return True
486
731
489
734
if self.checker_callback_tag:
490
735
gobject.source_remove(self.checker_callback_tag)
491
736
self.checker_callback_tag = None
492
if getattr(self, u"checker", None) is None:
737
if getattr(self, "checker", None) is None:
493
738
return
494
logger.debug(u"Stopping checker for %(name)s", vars(self))
739
logger.debug("Stopping checker for %(name)s", vars(self))
495
740
try:
496
os.kill(self.checker.pid, signal.SIGTERM)
741
self.checker.terminate()
497
742
#time.sleep(0.5)
498
743
#if self.checker.poll() is None:
499
# os.kill(self.checker.pid, signal.SIGKILL)
500
except OSError, error:
744
# self.checker.kill()
745
except OSError as error:
501
746
if error.errno != errno.ESRCH: # No such process
502
747
raise
503
748
self.checker = None
504
749
505
def dbus_service_property(dbus_interface, signature=u"v",
506
access=u"readwrite", byte_arrays=False):
750
751
def dbus_service_property(dbus_interface, signature="v",
752
access="readwrite", byte_arrays=False):
507
753
"""Decorators for marking methods of a DBusObjectWithProperties to
508
754
become properties on the D-Bus.
509
755
516
762
"""
517
763
# Encoding deeply encoded byte arrays is not supported yet by the
518
764
# "Set" method, so we fail early here:
519
if byte_arrays and signature != u"ay":
520
raise ValueError(u"Byte arrays not supported for non-'ay'"
521
u" signature %r" % signature)
765
if byte_arrays and signature != "ay":
766
raise ValueError("Byte arrays not supported for non-'ay'"
767
" signature {0!r}".format(signature))
522
768
def decorator(func):
523
769
func._dbus_is_property = True
524
770
func._dbus_interface = dbus_interface
525
771
func._dbus_signature = signature
526
772
func._dbus_access = access
527
773
func._dbus_name = func.__name__
528
if func._dbus_name.endswith(u"_dbus_property"):
774
if func._dbus_name.endswith("_dbus_property"):
529
775
func._dbus_name = func._dbus_name[:-14]
530
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
776
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
777
return func
778
return decorator
779
780
781
def dbus_interface_annotations(dbus_interface):
782
"""Decorator for marking functions returning interface annotations
783
784
Usage:
785
786
@dbus_interface_annotations("org.example.Interface")
787
def _foo(self): # Function name does not matter
788
return {"org.freedesktop.DBus.Deprecated": "true",
789
"org.freedesktop.DBus.Property.EmitsChangedSignal":
790
"false"}
791
"""
792
def decorator(func):
793
func._dbus_is_interface = True
794
func._dbus_interface = dbus_interface
795
func._dbus_name = dbus_interface
796
return func
797
return decorator
798
799
800
def dbus_annotations(annotations):
801
"""Decorator to annotate D-Bus methods, signals or properties
802
Usage:
803
804
@dbus_service_property("org.example.Interface", signature="b",
805
access="r")
806
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
807
"org.freedesktop.DBus.Property."
808
"EmitsChangedSignal": "false"})
809
def Property_dbus_property(self):
810
return dbus.Boolean(False)
811
"""
812
def decorator(func):
813
func._dbus_annotations = annotations
531
814
return func
532
815
return decorator
533
816
553
836
554
837
class DBusObjectWithProperties(dbus.service.Object):
555
838
"""A D-Bus object with properties.
556
839
557
840
Classes inheriting from this can use the dbus_service_property
558
841
decorator to expose methods as D-Bus properties. It exposes the
559
842
standard Get(), Set(), and GetAll() methods on the D-Bus.
560
843
"""
561
844
562
845
@staticmethod
563
def _is_dbus_property(obj):
564
return getattr(obj, u"_dbus_is_property", False)
846
def _is_dbus_thing(thing):
847
"""Returns a function testing if an attribute is a D-Bus thing
848
849
If called like _is_dbus_thing("method") it returns a function
850
suitable for use as predicate to inspect.getmembers().
851
"""
852
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
853
False)
565
854
566
def _get_all_dbus_properties(self):
855
def _get_all_dbus_things(self, thing):
567
856
"""Returns a generator of (name, attribute) pairs
568
857
"""
569
return ((prop._dbus_name, prop)
570
for name, prop in
571
inspect.getmembers(self, self._is_dbus_property))
858
return ((getattr(athing.__get__(self), "_dbus_name",
859
name),
860
athing.__get__(self))
861
for cls in self.__class__.__mro__
862
for name, athing in
863
inspect.getmembers(cls,
864
self._is_dbus_thing(thing)))
572
865
573
866
def _get_dbus_property(self, interface_name, property_name):
574
867
"""Returns a bound method if one exists which is a D-Bus
575
868
property with the specified name and interface.
576
869
"""
577
for name in (property_name,
578
property_name + u"_dbus_property"):
579
prop = getattr(self, name, None)
580
if (prop is None
581
or not self._is_dbus_property(prop)
582
or prop._dbus_name != property_name
583
or (interface_name and prop._dbus_interface
584
and interface_name != prop._dbus_interface)):
585
continue
586
return prop
870
for cls in self.__class__.__mro__:
871
for name, value in (inspect.getmembers
872
(cls,
873
self._is_dbus_thing("property"))):
874
if (value._dbus_name == property_name
875
and value._dbus_interface == interface_name):
876
return value.__get__(self)
877
587
878
# No such property
588
raise DBusPropertyNotFound(self.dbus_object_path + u":"
589
+ interface_name + u"."
879
raise DBusPropertyNotFound(self.dbus_object_path + ":"
880
+ interface_name + "."
590
881
+ property_name)
591
882
592
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
593
out_signature=u"v")
883
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
884
out_signature="v")
594
885
def Get(self, interface_name, property_name):
595
886
"""Standard D-Bus property Get() method, see D-Bus standard.
596
887
"""
597
888
prop = self._get_dbus_property(interface_name, property_name)
598
if prop._dbus_access == u"write":
889
if prop._dbus_access == "write":
599
890
raise DBusPropertyAccessException(property_name)
600
891
value = prop()
601
if not hasattr(value, u"variant_level"):
892
if not hasattr(value, "variant_level"):
602
893
return value
603
894
return type(value)(value, variant_level=value.variant_level+1)
604
895
605
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
896
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
606
897
def Set(self, interface_name, property_name, value):
607
898
"""Standard D-Bus property Set() method, see D-Bus standard.
608
899
"""
609
900
prop = self._get_dbus_property(interface_name, property_name)
610
if prop._dbus_access == u"read":
901
if prop._dbus_access == "read":
611
902
raise DBusPropertyAccessException(property_name)
612
if prop._dbus_get_args_options[u"byte_arrays"]:
903
if prop._dbus_get_args_options["byte_arrays"]:
613
904
# The byte_arrays option is not supported yet on
614
905
# signatures other than "ay".
615
if prop._dbus_signature != u"ay":
906
if prop._dbus_signature != "ay":
616
907
raise ValueError
617
value = dbus.ByteArray(''.join(unichr(byte)
618
for byte in value))
908
value = dbus.ByteArray(b''.join(chr(byte)
909
for byte in value))
619
910
prop(value)
620
911
621
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
622
out_signature=u"a{sv}")
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
913
out_signature="a{sv}")
623
914
def GetAll(self, interface_name):
624
915
"""Standard D-Bus property GetAll() method, see D-Bus
625
916
standard.
626
917
627
918
Note: Will not include properties with access="write".
628
919
"""
629
all = {}
630
for name, prop in self._get_all_dbus_properties():
920
properties = {}
921
for name, prop in self._get_all_dbus_things("property"):
631
922
if (interface_name
632
923
and interface_name != prop._dbus_interface):
633
924
# Interface non-empty but did not match
634
925
continue
635
926
# Ignore write-only properties
636
if prop._dbus_access == u"write":
927
if prop._dbus_access == "write":
637
928
continue
638
929
value = prop()
639
if not hasattr(value, u"variant_level"):
640
all[name] = value
930
if not hasattr(value, "variant_level"):
931
properties[name] = value
641
932
continue
642
all[name] = type(value)(value, variant_level=
643
value.variant_level+1)
644
return dbus.Dictionary(all, signature=u"sv")
933
properties[name] = type(value)(value, variant_level=
934
value.variant_level+1)
935
return dbus.Dictionary(properties, signature="sv")
645
936
646
937
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
647
out_signature=u"s",
938
out_signature="s",
648
939
path_keyword='object_path',
649
940
connection_keyword='connection')
650
941
def Introspect(self, object_path, connection):
651
"""Standard D-Bus method, overloaded to insert property tags.
942
"""Overloading of standard D-Bus method.
943
944
Inserts property tags and interface annotation tags.
652
945
"""
653
946
xmlstring = dbus.service.Object.Introspect(self, object_path,
654
947
connection)
655
948
try:
656
949
document = xml.dom.minidom.parseString(xmlstring)
657
950
def make_tag(document, name, prop):
658
e = document.createElement(u"property")
659
e.setAttribute(u"name", name)
660
e.setAttribute(u"type", prop._dbus_signature)
661
e.setAttribute(u"access", prop._dbus_access)
951
e = document.createElement("property")
952
e.setAttribute("name", name)
953
e.setAttribute("type", prop._dbus_signature)
954
e.setAttribute("access", prop._dbus_access)
662
955
return e
663
for if_tag in document.getElementsByTagName(u"interface"):
956
for if_tag in document.getElementsByTagName("interface"):
957
# Add property tags
664
958
for tag in (make_tag(document, name, prop)
665
959
for name, prop
666
in self._get_all_dbus_properties()
960
in self._get_all_dbus_things("property")
667
961
if prop._dbus_interface
668
== if_tag.getAttribute(u"name")):
962
== if_tag.getAttribute("name")):
669
963
if_tag.appendChild(tag)
964
# Add annotation tags
965
for typ in ("method", "signal", "property"):
966
for tag in if_tag.getElementsByTagName(typ):
967
annots = dict()
968
for name, prop in (self.
969
_get_all_dbus_things(typ)):
970
if (name == tag.getAttribute("name")
971
and prop._dbus_interface
972
== if_tag.getAttribute("name")):
973
annots.update(getattr
974
(prop,
975
"_dbus_annotations",
976
{}))
977
for name, value in annots.iteritems():
978
ann_tag = document.createElement(
979
"annotation")
980
ann_tag.setAttribute("name", name)
981
ann_tag.setAttribute("value", value)
982
tag.appendChild(ann_tag)
983
# Add interface annotation tags
984
for annotation, value in dict(
985
itertools.chain.from_iterable(
986
annotations().iteritems()
987
for name, annotations in
988
self._get_all_dbus_things("interface")
989
if name == if_tag.getAttribute("name")
990
)).iteritems():
991
ann_tag = document.createElement("annotation")
992
ann_tag.setAttribute("name", annotation)
993
ann_tag.setAttribute("value", value)
994
if_tag.appendChild(ann_tag)
670
995
# Add the names to the return values for the
671
996
# "org.freedesktop.DBus.Properties" methods
672
if (if_tag.getAttribute(u"name")
673
== u"org.freedesktop.DBus.Properties"):
674
for cn in if_tag.getElementsByTagName(u"method"):
675
if cn.getAttribute(u"name") == u"Get":
676
for arg in cn.getElementsByTagName(u"arg"):
677
if (arg.getAttribute(u"direction")
678
== u"out"):
679
arg.setAttribute(u"name", u"value")
680
elif cn.getAttribute(u"name") == u"GetAll":
681
for arg in cn.getElementsByTagName(u"arg"):
682
if (arg.getAttribute(u"direction")
683
== u"out"):
684
arg.setAttribute(u"name", u"props")
685
xmlstring = document.toxml(u"utf-8")
997
if (if_tag.getAttribute("name")
998
== "org.freedesktop.DBus.Properties"):
999
for cn in if_tag.getElementsByTagName("method"):
1000
if cn.getAttribute("name") == "Get":
1001
for arg in cn.getElementsByTagName("arg"):
1002
if (arg.getAttribute("direction")
1003
== "out"):
1004
arg.setAttribute("name", "value")
1005
elif cn.getAttribute("name") == "GetAll":
1006
for arg in cn.getElementsByTagName("arg"):
1007
if (arg.getAttribute("direction")
1008
== "out"):
1009
arg.setAttribute("name", "props")
1010
xmlstring = document.toxml("utf-8")
686
1011
document.unlink()
687
1012
except (AttributeError, xml.dom.DOMException,
688
xml.parsers.expat.ExpatError), error:
689
logger.error(u"Failed to override Introspection method",
690
error)
1013
xml.parsers.expat.ExpatError) as error:
1014
logger.error("Failed to override Introspection method",
1015
exc_info=error)
691
1016
return xmlstring
692
1017
693
1018
1019
def datetime_to_dbus(dt, variant_level=0):
1020
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1021
if dt is None:
1022
return dbus.String("", variant_level = variant_level)
1023
return dbus.String(dt.isoformat(),
1024
variant_level=variant_level)
1025
1026
1027
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1028
"""A class decorator; applied to a subclass of
1029
dbus.service.Object, it will add alternate D-Bus attributes with
1030
interface names according to the "alt_interface_names" mapping.
1031
Usage:
1032
1033
@alternate_dbus_interfaces({"org.example.Interface":
1034
"net.example.AlternateInterface"})
1035
class SampleDBusObject(dbus.service.Object):
1036
@dbus.service.method("org.example.Interface")
1037
def SampleDBusMethod():
1038
pass
1039
1040
The above "SampleDBusMethod" on "SampleDBusObject" will be
1041
reachable via two interfaces: "org.example.Interface" and
1042
"net.example.AlternateInterface", the latter of which will have
1043
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1044
"true", unless "deprecate" is passed with a False value.
1045
1046
This works for methods and signals, and also for D-Bus properties
1047
(from DBusObjectWithProperties) and interfaces (from the
1048
dbus_interface_annotations decorator).
1049
"""
1050
def wrapper(cls):
1051
for orig_interface_name, alt_interface_name in (
1052
alt_interface_names.iteritems()):
1053
attr = {}
1054
interface_names = set()
1055
# Go though all attributes of the class
1056
for attrname, attribute in inspect.getmembers(cls):
1057
# Ignore non-D-Bus attributes, and D-Bus attributes
1058
# with the wrong interface name
1059
if (not hasattr(attribute, "_dbus_interface")
1060
or not attribute._dbus_interface
1061
.startswith(orig_interface_name)):
1062
continue
1063
# Create an alternate D-Bus interface name based on
1064
# the current name
1065
alt_interface = (attribute._dbus_interface
1066
.replace(orig_interface_name,
1067
alt_interface_name))
1068
interface_names.add(alt_interface)
1069
# Is this a D-Bus signal?
1070
if getattr(attribute, "_dbus_is_signal", False):
1071
# Extract the original non-method function by
1072
# black magic
1073
nonmethod_func = (dict(
1074
zip(attribute.func_code.co_freevars,
1075
attribute.__closure__))["func"]
1076
.cell_contents)
1077
# Create a new, but exactly alike, function
1078
# object, and decorate it to be a new D-Bus signal
1079
# with the alternate D-Bus interface name
1080
new_function = (dbus.service.signal
1081
(alt_interface,
1082
attribute._dbus_signature)
1083
(types.FunctionType(
1084
nonmethod_func.func_code,
1085
nonmethod_func.func_globals,
1086
nonmethod_func.func_name,
1087
nonmethod_func.func_defaults,
1088
nonmethod_func.func_closure)))
1089
# Copy annotations, if any
1090
try:
1091
new_function._dbus_annotations = (
1092
dict(attribute._dbus_annotations))
1093
except AttributeError:
1094
pass
1095
# Define a creator of a function to call both the
1096
# original and alternate functions, so both the
1097
# original and alternate signals gets sent when
1098
# the function is called
1099
def fixscope(func1, func2):
1100
"""This function is a scope container to pass
1101
func1 and func2 to the "call_both" function
1102
outside of its arguments"""
1103
def call_both(*args, **kwargs):
1104
"""This function will emit two D-Bus
1105
signals by calling func1 and func2"""
1106
func1(*args, **kwargs)
1107
func2(*args, **kwargs)
1108
return call_both
1109
# Create the "call_both" function and add it to
1110
# the class
1111
attr[attrname] = fixscope(attribute, new_function)
1112
# Is this a D-Bus method?
1113
elif getattr(attribute, "_dbus_is_method", False):
1114
# Create a new, but exactly alike, function
1115
# object. Decorate it to be a new D-Bus method
1116
# with the alternate D-Bus interface name. Add it
1117
# to the class.
1118
attr[attrname] = (dbus.service.method
1119
(alt_interface,
1120
attribute._dbus_in_signature,
1121
attribute._dbus_out_signature)
1122
(types.FunctionType
1123
(attribute.func_code,
1124
attribute.func_globals,
1125
attribute.func_name,
1126
attribute.func_defaults,
1127
attribute.func_closure)))
1128
# Copy annotations, if any
1129
try:
1130
attr[attrname]._dbus_annotations = (
1131
dict(attribute._dbus_annotations))
1132
except AttributeError:
1133
pass
1134
# Is this a D-Bus property?
1135
elif getattr(attribute, "_dbus_is_property", False):
1136
# Create a new, but exactly alike, function
1137
# object, and decorate it to be a new D-Bus
1138
# property with the alternate D-Bus interface
1139
# name. Add it to the class.
1140
attr[attrname] = (dbus_service_property
1141
(alt_interface,
1142
attribute._dbus_signature,
1143
attribute._dbus_access,
1144
attribute
1145
._dbus_get_args_options
1146
["byte_arrays"])
1147
(types.FunctionType
1148
(attribute.func_code,
1149
attribute.func_globals,
1150
attribute.func_name,
1151
attribute.func_defaults,
1152
attribute.func_closure)))
1153
# Copy annotations, if any
1154
try:
1155
attr[attrname]._dbus_annotations = (
1156
dict(attribute._dbus_annotations))
1157
except AttributeError:
1158
pass
1159
# Is this a D-Bus interface?
1160
elif getattr(attribute, "_dbus_is_interface", False):
1161
# Create a new, but exactly alike, function
1162
# object. Decorate it to be a new D-Bus interface
1163
# with the alternate D-Bus interface name. Add it
1164
# to the class.
1165
attr[attrname] = (dbus_interface_annotations
1166
(alt_interface)
1167
(types.FunctionType
1168
(attribute.func_code,
1169
attribute.func_globals,
1170
attribute.func_name,
1171
attribute.func_defaults,
1172
attribute.func_closure)))
1173
if deprecate:
1174
# Deprecate all alternate interfaces
1175
iname="_AlternateDBusNames_interface_annotation{0}"
1176
for interface_name in interface_names:
1177
@dbus_interface_annotations(interface_name)
1178
def func(self):
1179
return { "org.freedesktop.DBus.Deprecated":
1180
"true" }
1181
# Find an unused name
1182
for aname in (iname.format(i)
1183
for i in itertools.count()):
1184
if aname not in attr:
1185
attr[aname] = func
1186
break
1187
if interface_names:
1188
# Replace the class with a new subclass of it with
1189
# methods, signals, etc. as created above.
1190
cls = type(b"{0}Alternate".format(cls.__name__),
1191
(cls,), attr)
1192
return cls
1193
return wrapper
1194
1195
1196
@alternate_dbus_interfaces({"se.recompile.Mandos":
1197
"se.bsnet.fukt.Mandos"})
694
1198
class ClientDBus(Client, DBusObjectWithProperties):
695
1199
"""A Client class using D-Bus
696
1200
698
1202
dbus_object_path: dbus.ObjectPath
699
1203
bus: dbus.SystemBus()
700
1204
"""
1205
1206
runtime_expansions = (Client.runtime_expansions
1207
+ ("dbus_object_path",))
1208
701
1209
# dbus.service.Object doesn't use super(), so we can't either.
702
1210
703
1211
def __init__(self, bus = None, *args, **kwargs):
704
self._approvals_pending = 0
705
1212
self.bus = bus
706
1213
Client.__init__(self, *args, **kwargs)
707
1214
# Only now, when this client is initialized, can it show up on
708
1215
# the D-Bus
1216
client_object_name = unicode(self.name).translate(
1217
{ord("."): ord("_"),
1218
ord("-"): ord("_")})
709
1219
self.dbus_object_path = (dbus.ObjectPath
710
(u"/clients/"
711
+ self.name.replace(u".", u"_")))
1220
("/clients/" + client_object_name))
712
1221
DBusObjectWithProperties.__init__(self, self.bus,
713
1222
self.dbus_object_path)
714
715
def _get_approvals_pending(self):
716
return self._approvals_pending
717
def _set_approvals_pending(self, value):
718
old_value = self._approvals_pending
719
self._approvals_pending = value
720
bval = bool(value)
721
if (hasattr(self, "dbus_object_path")
722
and bval is not bool(old_value)):
723
dbus_bool = dbus.Boolean(bval, variant_level=1)
724
self.PropertyChanged(dbus.String(u"approved_pending"),
725
dbus_bool)
726
727
approvals_pending = property(_get_approvals_pending,
728
_set_approvals_pending)
729
del _get_approvals_pending, _set_approvals_pending
730
731
@staticmethod
732
def _datetime_to_dbus(dt, variant_level=0):
733
"""Convert a UTC datetime.datetime() to a D-Bus type."""
734
return dbus.String(dt.isoformat(),
735
variant_level=variant_level)
736
737
def enable(self):
738
oldstate = getattr(self, u"enabled", False)
739
r = Client.enable(self)
740
if oldstate != self.enabled:
741
# Emit D-Bus signals
742
self.PropertyChanged(dbus.String(u"enabled"),
743
dbus.Boolean(True, variant_level=1))
744
self.PropertyChanged(
745
dbus.String(u"last_enabled"),
746
self._datetime_to_dbus(self.last_enabled,
747
variant_level=1))
748
return r
749
750
def disable(self, quiet = False):
751
oldstate = getattr(self, u"enabled", False)
752
r = Client.disable(self, quiet=quiet)
753
if not quiet and oldstate != self.enabled:
754
# Emit D-Bus signal
755
self.PropertyChanged(dbus.String(u"enabled"),
756
dbus.Boolean(False, variant_level=1))
757
return r
1223
1224
def notifychangeproperty(transform_func,
1225
dbus_name, type_func=lambda x: x,
1226
variant_level=1):
1227
""" Modify a variable so that it's a property which announces
1228
its changes to DBus.
1229
1230
transform_fun: Function that takes a value and a variant_level
1231
and transforms it to a D-Bus type.
1232
dbus_name: D-Bus name of the variable
1233
type_func: Function that transform the value before sending it
1234
to the D-Bus. Default: no transform
1235
variant_level: D-Bus variant level. Default: 1
1236
"""
1237
attrname = "_{0}".format(dbus_name)
1238
def setter(self, value):
1239
if hasattr(self, "dbus_object_path"):
1240
if (not hasattr(self, attrname) or
1241
type_func(getattr(self, attrname, None))
1242
!= type_func(value)):
1243
dbus_value = transform_func(type_func(value),
1244
variant_level
1245
=variant_level)
1246
self.PropertyChanged(dbus.String(dbus_name),
1247
dbus_value)
1248
setattr(self, attrname, value)
1249
1250
return property(lambda self: getattr(self, attrname), setter)
1251
1252
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1253
approvals_pending = notifychangeproperty(dbus.Boolean,
1254
"ApprovalPending",
1255
type_func = bool)
1256
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1257
last_enabled = notifychangeproperty(datetime_to_dbus,
1258
"LastEnabled")
1259
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1260
type_func = lambda checker:
1261
checker is not None)
1262
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1263
"LastCheckedOK")
1264
last_checker_status = notifychangeproperty(dbus.Int16,
1265
"LastCheckerStatus")
1266
last_approval_request = notifychangeproperty(
1267
datetime_to_dbus, "LastApprovalRequest")
1268
approved_by_default = notifychangeproperty(dbus.Boolean,
1269
"ApprovedByDefault")
1270
approval_delay = notifychangeproperty(dbus.UInt64,
1271
"ApprovalDelay",
1272
type_func =
1273
timedelta_to_milliseconds)
1274
approval_duration = notifychangeproperty(
1275
dbus.UInt64, "ApprovalDuration",
1276
type_func = timedelta_to_milliseconds)
1277
host = notifychangeproperty(dbus.String, "Host")
1278
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1279
type_func =
1280
timedelta_to_milliseconds)
1281
extended_timeout = notifychangeproperty(
1282
dbus.UInt64, "ExtendedTimeout",
1283
type_func = timedelta_to_milliseconds)
1284
interval = notifychangeproperty(dbus.UInt64,
1285
"Interval",
1286
type_func =
1287
timedelta_to_milliseconds)
1288
checker_command = notifychangeproperty(dbus.String, "Checker")
1289
1290
del notifychangeproperty
758
1291
759
1292
def __del__(self, *args, **kwargs):
760
1293
try:
761
1294
self.remove_from_connection()
762
1295
except LookupError:
763
1296
pass
764
if hasattr(DBusObjectWithProperties, u"__del__"):
1297
if hasattr(DBusObjectWithProperties, "__del__"):
765
1298
DBusObjectWithProperties.__del__(self, *args, **kwargs)
766
1299
Client.__del__(self, *args, **kwargs)
767
1300
769
1302
*args, **kwargs):
770
1303
self.checker_callback_tag = None
771
1304
self.checker = None
772
# Emit D-Bus signal
773
self.PropertyChanged(dbus.String(u"checker_running"),
774
dbus.Boolean(False, variant_level=1))
775
1305
if os.WIFEXITED(condition):
776
1306
exitstatus = os.WEXITSTATUS(condition)
777
1307
# Emit D-Bus signal
787
1317
return Client.checker_callback(self, pid, condition, command,
788
1318
*args, **kwargs)
789
1319
790
def checked_ok(self, *args, **kwargs):
791
r = Client.checked_ok(self, *args, **kwargs)
792
# Emit D-Bus signal
793
self.PropertyChanged(
794
dbus.String(u"last_checked_ok"),
795
(self._datetime_to_dbus(self.last_checked_ok,
796
variant_level=1)))
797
return r
798
799
1320
def start_checker(self, *args, **kwargs):
800
1321
old_checker = self.checker
801
1322
if self.checker is not None:
808
1329
and old_checker_pid != self.checker.pid):
809
1330
# Emit D-Bus signal
810
1331
self.CheckerStarted(self.current_checker_command)
811
self.PropertyChanged(
812
dbus.String(u"checker_running"),
813
dbus.Boolean(True, variant_level=1))
814
1332
return r
815
1333
816
def stop_checker(self, *args, **kwargs):
817
old_checker = getattr(self, u"checker", None)
818
r = Client.stop_checker(self, *args, **kwargs)
819
if (old_checker is not None
820
and getattr(self, u"checker", None) is None):
821
self.PropertyChanged(dbus.String(u"checker_running"),
822
dbus.Boolean(False, variant_level=1))
823
return r
824
825
1334
def _reset_approved(self):
826
self._approved = None
1335
self.approved = None
827
1336
return False
828
1337
829
1338
def approve(self, value=True):
830
self.send_changedstate()
831
self._approved = value
832
gobject.timeout_add(self._timedelta_to_milliseconds(self.approved_duration),
1339
self.approved = value
1340
gobject.timeout_add(timedelta_to_milliseconds
1341
(self.approval_duration),
833
1342
self._reset_approved)
834
1343
self.send_changedstate()
835
1344
836
1345
## D-Bus methods, signals & properties
837
_interface = u"se.bsnet.fukt.Mandos.Client"
1346
_interface = "se.recompile.Mandos.Client"
1347
1348
## Interfaces
1349
1350
@dbus_interface_annotations(_interface)
1351
def _foo(self):
1352
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1353
"false"}
838
1354
839
1355
## Signals
840
1356
841
1357
# CheckerCompleted - signal
842
@dbus.service.signal(_interface, signature=u"nxs")
1358
@dbus.service.signal(_interface, signature="nxs")
843
1359
def CheckerCompleted(self, exitcode, waitstatus, command):
844
1360
"D-Bus signal"
845
1361
pass
846
1362
847
1363
# CheckerStarted - signal
848
@dbus.service.signal(_interface, signature=u"s")
1364
@dbus.service.signal(_interface, signature="s")
849
1365
def CheckerStarted(self, command):
850
1366
"D-Bus signal"
851
1367
pass
852
1368
853
1369
# PropertyChanged - signal
854
@dbus.service.signal(_interface, signature=u"sv")
1370
@dbus.service.signal(_interface, signature="sv")
855
1371
def PropertyChanged(self, property, value):
856
1372
"D-Bus signal"
857
1373
pass
866
1382
pass
867
1383
868
1384
# Rejected - signal
869
@dbus.service.signal(_interface, signature=u"s")
1385
@dbus.service.signal(_interface, signature="s")
870
1386
def Rejected(self, reason):
871
1387
"D-Bus signal"
872
1388
pass
873
1389
874
1390
# NeedApproval - signal
875
@dbus.service.signal(_interface, signature=u"db")
1391
@dbus.service.signal(_interface, signature="tb")
876
1392
def NeedApproval(self, timeout, default):
877
1393
"D-Bus signal"
878
pass
1394
return self.need_approval()
879
1395
880
1396
## Methods
881
1397
882
1398
# Approve - method
883
@dbus.service.method(_interface, in_signature=u"b")
1399
@dbus.service.method(_interface, in_signature="b")
884
1400
def Approve(self, value):
885
1401
self.approve(value)
886
1402
887
1403
# CheckedOK - method
888
1404
@dbus.service.method(_interface)
889
1405
def CheckedOK(self):
890
return self.checked_ok()
1406
self.checked_ok()
891
1407
892
1408
# Enable - method
893
1409
@dbus.service.method(_interface)
914
1430
915
1431
## Properties
916
1432
917
# approved_pending - property
918
@dbus_service_property(_interface, signature=u"b", access=u"read")
919
def approved_pending_dbus_property(self):
1433
# ApprovalPending - property
1434
@dbus_service_property(_interface, signature="b", access="read")
1435
def ApprovalPending_dbus_property(self):
920
1436
return dbus.Boolean(bool(self.approvals_pending))
921
1437
922
# approved_by_default - property
923
@dbus_service_property(_interface, signature=u"b",
924
access=u"readwrite")
925
def approved_by_default_dbus_property(self):
926
return dbus.Boolean(self.approved_by_default)
927
928
# approved_delay - property
929
@dbus_service_property(_interface, signature=u"t",
930
access=u"readwrite")
931
def approved_delay_dbus_property(self):
932
return dbus.UInt64(self.approved_delay_milliseconds())
933
934
# approved_duration - property
935
@dbus_service_property(_interface, signature=u"t",
936
access=u"readwrite")
937
def approved_duration_dbus_property(self):
938
return dbus.UInt64(self._timedelta_to_milliseconds(
939
self.approved_duration))
940
941
# name - property
942
@dbus_service_property(_interface, signature=u"s", access=u"read")
943
def name_dbus_property(self):
1438
# ApprovedByDefault - property
1439
@dbus_service_property(_interface, signature="b",
1440
access="readwrite")
1441
def ApprovedByDefault_dbus_property(self, value=None):
1442
if value is None: # get
1443
return dbus.Boolean(self.approved_by_default)
1444
self.approved_by_default = bool(value)
1445
1446
# ApprovalDelay - property
1447
@dbus_service_property(_interface, signature="t",
1448
access="readwrite")
1449
def ApprovalDelay_dbus_property(self, value=None):
1450
if value is None: # get
1451
return dbus.UInt64(self.approval_delay_milliseconds())
1452
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1453
1454
# ApprovalDuration - property
1455
@dbus_service_property(_interface, signature="t",
1456
access="readwrite")
1457
def ApprovalDuration_dbus_property(self, value=None):
1458
if value is None: # get
1459
return dbus.UInt64(timedelta_to_milliseconds(
1460
self.approval_duration))
1461
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1462
1463
# Name - property
1464
@dbus_service_property(_interface, signature="s", access="read")
1465
def Name_dbus_property(self):
944
1466
return dbus.String(self.name)
945
1467
946
# fingerprint - property
947
@dbus_service_property(_interface, signature=u"s", access=u"read")
948
def fingerprint_dbus_property(self):
1468
# Fingerprint - property
1469
@dbus_service_property(_interface, signature="s", access="read")
1470
def Fingerprint_dbus_property(self):
949
1471
return dbus.String(self.fingerprint)
950
1472
951
# host - property
952
@dbus_service_property(_interface, signature=u"s",
953
access=u"readwrite")
954
def host_dbus_property(self, value=None):
1473
# Host - property
1474
@dbus_service_property(_interface, signature="s",
1475
access="readwrite")
1476
def Host_dbus_property(self, value=None):
955
1477
if value is None: # get
956
1478
return dbus.String(self.host)
957
self.host = value
958
# Emit D-Bus signal
959
self.PropertyChanged(dbus.String(u"host"),
960
dbus.String(value, variant_level=1))
961
962
# created - property
963
@dbus_service_property(_interface, signature=u"s", access=u"read")
964
def created_dbus_property(self):
965
return dbus.String(self._datetime_to_dbus(self.created))
966
967
# last_enabled - property
968
@dbus_service_property(_interface, signature=u"s", access=u"read")
969
def last_enabled_dbus_property(self):
970
if self.last_enabled is None:
971
return dbus.String(u"")
972
return dbus.String(self._datetime_to_dbus(self.last_enabled))
973
974
# enabled - property
975
@dbus_service_property(_interface, signature=u"b",
976
access=u"readwrite")
977
def enabled_dbus_property(self, value=None):
1479
self.host = unicode(value)
1480
1481
# Created - property
1482
@dbus_service_property(_interface, signature="s", access="read")
1483
def Created_dbus_property(self):
1484
return datetime_to_dbus(self.created)
1485
1486
# LastEnabled - property
1487
@dbus_service_property(_interface, signature="s", access="read")
1488
def LastEnabled_dbus_property(self):
1489
return datetime_to_dbus(self.last_enabled)
1490
1491
# Enabled - property
1492
@dbus_service_property(_interface, signature="b",
1493
access="readwrite")
1494
def Enabled_dbus_property(self, value=None):
978
1495
if value is None: # get
979
1496
return dbus.Boolean(self.enabled)
980
1497
if value:
982
1499
else:
983
1500
self.disable()
984
1501
985
# last_checked_ok - property
986
@dbus_service_property(_interface, signature=u"s",
987
access=u"readwrite")
988
def last_checked_ok_dbus_property(self, value=None):
1502
# LastCheckedOK - property
1503
@dbus_service_property(_interface, signature="s",
1504
access="readwrite")
1505
def LastCheckedOK_dbus_property(self, value=None):
989
1506
if value is not None:
990
1507
self.checked_ok()
991
1508
return
992
if self.last_checked_ok is None:
993
return dbus.String(u"")
994
return dbus.String(self._datetime_to_dbus(self
995
.last_checked_ok))
996
997
# timeout - property
998
@dbus_service_property(_interface, signature=u"t",
999
access=u"readwrite")
1000
def timeout_dbus_property(self, value=None):
1509
return datetime_to_dbus(self.last_checked_ok)
1510
1511
# LastCheckerStatus - property
1512
@dbus_service_property(_interface, signature="n",
1513
access="read")
1514
def LastCheckerStatus_dbus_property(self):
1515
return dbus.Int16(self.last_checker_status)
1516
1517
# Expires - property
1518
@dbus_service_property(_interface, signature="s", access="read")
1519
def Expires_dbus_property(self):
1520
return datetime_to_dbus(self.expires)
1521
1522
# LastApprovalRequest - property
1523
@dbus_service_property(_interface, signature="s", access="read")
1524
def LastApprovalRequest_dbus_property(self):
1525
return datetime_to_dbus(self.last_approval_request)
1526
1527
# Timeout - property
1528
@dbus_service_property(_interface, signature="t",
1529
access="readwrite")
1530
def Timeout_dbus_property(self, value=None):
1001
1531
if value is None: # get
1002
1532
return dbus.UInt64(self.timeout_milliseconds())
1533
old_timeout = self.timeout
1003
1534
self.timeout = datetime.timedelta(0, 0, 0, value)
1004
# Emit D-Bus signal
1005
self.PropertyChanged(dbus.String(u"timeout"),
1006
dbus.UInt64(value, variant_level=1))
1007
if getattr(self, u"disable_initiator_tag", None) is None:
1008
return
1009
# Reschedule timeout
1010
gobject.source_remove(self.disable_initiator_tag)
1011
self.disable_initiator_tag = None
1012
time_to_die = (self.
1013
_timedelta_to_milliseconds((self
1014
.last_checked_ok
1015
+ self.timeout)
1016
- datetime.datetime
1017
.utcnow()))
1018
if time_to_die <= 0:
1019
# The timeout has passed
1020
self.disable()
1021
else:
1022
self.disable_initiator_tag = (gobject.timeout_add
1023
(time_to_die, self.disable))
1024
1025
# interval - property
1026
@dbus_service_property(_interface, signature=u"t",
1027
access=u"readwrite")
1028
def interval_dbus_property(self, value=None):
1535
# Reschedule disabling
1536
if self.enabled:
1537
now = datetime.datetime.utcnow()
1538
self.expires += self.timeout - old_timeout
1539
if self.expires <= now:
1540
# The timeout has passed
1541
self.disable()
1542
else:
1543
if (getattr(self, "disable_initiator_tag", None)
1544
is None):
1545
return
1546
gobject.source_remove(self.disable_initiator_tag)
1547
self.disable_initiator_tag = (
1548
gobject.timeout_add(
1549
timedelta_to_milliseconds(self.expires - now),
1550
self.disable))
1551
1552
# ExtendedTimeout - property
1553
@dbus_service_property(_interface, signature="t",
1554
access="readwrite")
1555
def ExtendedTimeout_dbus_property(self, value=None):
1556
if value is None: # get
1557
return dbus.UInt64(self.extended_timeout_milliseconds())
1558
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1559
1560
# Interval - property
1561
@dbus_service_property(_interface, signature="t",
1562
access="readwrite")
1563
def Interval_dbus_property(self, value=None):
1029
1564
if value is None: # get
1030
1565
return dbus.UInt64(self.interval_milliseconds())
1031
1566
self.interval = datetime.timedelta(0, 0, 0, value)
1032
# Emit D-Bus signal
1033
self.PropertyChanged(dbus.String(u"interval"),
1034
dbus.UInt64(value, variant_level=1))
1035
if getattr(self, u"checker_initiator_tag", None) is None:
1567
if getattr(self, "checker_initiator_tag", None) is None:
1036
1568
return
1037
# Reschedule checker run
1038
gobject.source_remove(self.checker_initiator_tag)
1039
self.checker_initiator_tag = (gobject.timeout_add
1040
(value, self.start_checker))
1041
self.start_checker() # Start one now, too
1042
1043
# checker - property
1044
@dbus_service_property(_interface, signature=u"s",
1045
access=u"readwrite")
1046
def checker_dbus_property(self, value=None):
1569
if self.enabled:
1570
# Reschedule checker run
1571
gobject.source_remove(self.checker_initiator_tag)
1572
self.checker_initiator_tag = (gobject.timeout_add
1573
(value, self.start_checker))
1574
self.start_checker() # Start one now, too
1575
1576
# Checker - property
1577
@dbus_service_property(_interface, signature="s",
1578
access="readwrite")
1579
def Checker_dbus_property(self, value=None):
1047
1580
if value is None: # get
1048
1581
return dbus.String(self.checker_command)
1049
self.checker_command = value
1050
# Emit D-Bus signal
1051
self.PropertyChanged(dbus.String(u"checker"),
1052
dbus.String(self.checker_command,
1053
variant_level=1))
1582
self.checker_command = unicode(value)
1054
1583
1055
# checker_running - property
1056
@dbus_service_property(_interface, signature=u"b",
1057
access=u"readwrite")
1058
def checker_running_dbus_property(self, value=None):
1584
# CheckerRunning - property
1585
@dbus_service_property(_interface, signature="b",
1586
access="readwrite")
1587
def CheckerRunning_dbus_property(self, value=None):
1059
1588
if value is None: # get
1060
1589
return dbus.Boolean(self.checker is not None)
1061
1590
if value:
1063
1592
else:
1064
1593
self.stop_checker()
1065
1594
1066
# object_path - property
1067
@dbus_service_property(_interface, signature=u"o", access=u"read")
1068
def object_path_dbus_property(self):
1595
# ObjectPath - property
1596
@dbus_service_property(_interface, signature="o", access="read")
1597
def ObjectPath_dbus_property(self):
1069
1598
return self.dbus_object_path # is already a dbus.ObjectPath
1070
1599
1071
# secret = property
1072
@dbus_service_property(_interface, signature=u"ay",
1073
access=u"write", byte_arrays=True)
1074
def secret_dbus_property(self, value):
1600
# Secret = property
1601
@dbus_service_property(_interface, signature="ay",
1602
access="write", byte_arrays=True)
1603
def Secret_dbus_property(self, value):
1075
1604
self.secret = str(value)
1076
1605
1077
1606
del _interface
1083
1612
self._pipe.send(('init', fpr, address))
1084
1613
if not self._pipe.recv():
1085
1614
raise KeyError()
1086
1615
1087
1616
def __getattribute__(self, name):
1088
if(name == '_pipe'):
1617
if name == '_pipe':
1089
1618
return super(ProxyClient, self).__getattribute__(name)
1090
1619
self._pipe.send(('getattr', name))
1091
1620
data = self._pipe.recv()
1096
1625
self._pipe.send(('funcall', name, args, kwargs))
1097
1626
return self._pipe.recv()[1]
1098
1627
return func
1099
1628
1100
1629
def __setattr__(self, name, value):
1101
if(name == '_pipe'):
1630
if name == '_pipe':
1102
1631
return super(ProxyClient, self).__setattr__(name, value)
1103
1632
self._pipe.send(('setattr', name, value))
1104
1633
1111
1640
1112
1641
def handle(self):
1113
1642
with contextlib.closing(self.server.child_pipe) as child_pipe:
1114
logger.info(u"TCP connection from: %s",
1643
logger.info("TCP connection from: %s",
1115
1644
unicode(self.client_address))
1116
logger.debug(u"Pipe FD: %d",
1645
logger.debug("Pipe FD: %d",
1117
1646
self.server.child_pipe.fileno())
1118
1647
1119
1648
session = (gnutls.connection
1120
1649
.ClientSession(self.request,
1121
1650
gnutls.connection
1122
1651
.X509Credentials()))
1123
1652
1124
1653
# Note: gnutls.connection.X509Credentials is really a
1125
1654
# generic GnuTLS certificate credentials object so long as
1126
1655
# no X.509 keys are added to it. Therefore, we can use it
1127
1656
# here despite using OpenPGP certificates.
1128
1129
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1130
# u"+AES-256-CBC", u"+SHA1",
1131
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1132
# u"+DHE-DSS"))
1657
1658
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1659
# "+AES-256-CBC", "+SHA1",
1660
# "+COMP-NULL", "+CTYPE-OPENPGP",
1661
# "+DHE-DSS"))
1133
1662
# Use a fallback default, since this MUST be set.
1134
1663
priority = self.server.gnutls_priority
1135
1664
if priority is None:
1136
priority = u"NORMAL"
1665
priority = "NORMAL"
1137
1666
(gnutls.library.functions
1138
1667
.gnutls_priority_set_direct(session._c_object,
1139
1668
priority, None))
1140
1669
1141
1670
# Start communication using the Mandos protocol
1142
1671
# Get protocol number
1143
1672
line = self.request.makefile().readline()
1144
logger.debug(u"Protocol version: %r", line)
1673
logger.debug("Protocol version: %r", line)
1145
1674
try:
1146
1675
if int(line.strip().split()[0]) > 1:
1147
1676
raise RuntimeError
1148
except (ValueError, IndexError, RuntimeError), error:
1149
logger.error(u"Unknown protocol version: %s", error)
1677
except (ValueError, IndexError, RuntimeError) as error:
1678
logger.error("Unknown protocol version: %s", error)
1150
1679
return
1151
1680
1152
1681
# Start GnuTLS connection
1153
1682
try:
1154
1683
session.handshake()
1155
except gnutls.errors.GNUTLSError, error:
1156
logger.warning(u"Handshake failed: %s", error)
1684
except gnutls.errors.GNUTLSError as error:
1685
logger.warning("Handshake failed: %s", error)
1157
1686
# Do not run session.bye() here: the session is not
1158
1687
# established. Just abandon the request.
1159
1688
return
1160
logger.debug(u"Handshake succeeded")
1161
1689
logger.debug("Handshake succeeded")
1690
1162
1691
approval_required = False
1163
1692
try:
1164
1693
try:
1165
1694
fpr = self.fingerprint(self.peer_certificate
1166
1695
(session))
1167
except (TypeError, gnutls.errors.GNUTLSError), error:
1168
logger.warning(u"Bad certificate: %s", error)
1696
except (TypeError,
1697
gnutls.errors.GNUTLSError) as error:
1698
logger.warning("Bad certificate: %s", error)
1169
1699
return
1170
logger.debug(u"Fingerprint: %s", fpr)
1171
1700
logger.debug("Fingerprint: %s", fpr)
1701
1172
1702
try:
1173
1703
client = ProxyClient(child_pipe, fpr,
1174
1704
self.client_address)
1175
1705
except KeyError:
1176
1706
return
1177
1707
1178
if client.approved_delay:
1179
delay = client.approved_delay
1708
if client.approval_delay:
1709
delay = client.approval_delay
1180
1710
client.approvals_pending += 1
1181
1711
approval_required = True
1182
1712
1183
1713
while True:
1184
1714
if not client.enabled:
1185
logger.warning(u"Client %s is disabled",
1715
logger.info("Client %s is disabled",
1186
1716
client.name)
1187
1717
if self.server.use_dbus:
1188
1718
# Emit D-Bus signal
1189
client.Rejected("Disabled")
1719
client.Rejected("Disabled")
1190
1720
return
1191
1721
1192
if client._approved or not client.approved_delay:
1722
if client.approved or not client.approval_delay:
1193
1723
#We are approved or approval is disabled
1194
1724
break
1195
elif client._approved is None:
1196
logger.info(u"Client %s need approval",
1725
elif client.approved is None:
1726
logger.info("Client %s needs approval",
1197
1727
client.name)
1198
1728
if self.server.use_dbus:
1199
1729
# Emit D-Bus signal
1200
1730
client.NeedApproval(
1201
client.approved_delay_milliseconds(),
1731
client.approval_delay_milliseconds(),
1202
1732
client.approved_by_default)
1203
1733
else:
1204
logger.warning(u"Client %s was not approved",
1734
logger.warning("Client %s was not approved",
1205
1735
client.name)
1206
1736
if self.server.use_dbus:
1207
1737
# Emit D-Bus signal
1208
client.Rejected("Disapproved")
1738
client.Rejected("Denied")
1209
1739
return
1210
1740
1211
1741
#wait until timeout or approved
1212
#x = float(client._timedelta_to_milliseconds(delay))
1213
1742
time = datetime.datetime.now()
1214
1743
client.changedstate.acquire()
1215
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1744
client.changedstate.wait(
1745
float(timedelta_to_milliseconds(delay)
1746
/ 1000))
1216
1747
client.changedstate.release()
1217
1748
time2 = datetime.datetime.now()
1218
1749
if (time2 - time) >= delay:
1222
1753
client.name)
1223
1754
if self.server.use_dbus:
1224
1755
# Emit D-Bus signal
1225
client.Rejected("Time out")
1756
client.Rejected("Approval timed out")
1226
1757
return
1227
1758
else:
1228
1759
break
1233
1764
while sent_size < len(client.secret):
1234
1765
try:
1235
1766
sent = session.send(client.secret[sent_size:])
1236
except (gnutls.errors.GNUTLSError), error:
1237
logger.warning("gnutls send failed")
1767
except gnutls.errors.GNUTLSError as error:
1768
logger.warning("gnutls send failed",
1769
exc_info=error)
1238
1770
return
1239
logger.debug(u"Sent: %d, remaining: %d",
1771
logger.debug("Sent: %d, remaining: %d",
1240
1772
sent, len(client.secret)
1241
1773
- (sent_size + sent))
1242
1774
sent_size += sent
1243
1244
logger.info(u"Sending secret to %s", client.name)
1245
# bump the timeout as if seen
1246
client.checked_ok()
1775
1776
logger.info("Sending secret to %s", client.name)
1777
# bump the timeout using extended_timeout
1778
client.bump_timeout(client.extended_timeout)
1247
1779
if self.server.use_dbus:
1248
1780
# Emit D-Bus signal
1249
1781
client.GotSecret()
1253
1785
client.approvals_pending -= 1
1254
1786
try:
1255
1787
session.bye()
1256
except (gnutls.errors.GNUTLSError), error:
1257
logger.warning("gnutls bye failed")
1788
except gnutls.errors.GNUTLSError as error:
1789
logger.warning("GnuTLS bye failed",
1790
exc_info=error)
1258
1791
1259
1792
@staticmethod
1260
1793
def peer_certificate(session):
1270
1803
.gnutls_certificate_get_peers
1271
1804
(session._c_object, ctypes.byref(list_size)))
1272
1805
if not bool(cert_list) and list_size.value != 0:
1273
raise gnutls.errors.GNUTLSError(u"error getting peer"
1274
u" certificate")
1806
raise gnutls.errors.GNUTLSError("error getting peer"
1807
" certificate")
1275
1808
if list_size.value == 0:
1276
1809
return None
1277
1810
cert = cert_list[0]
1303
1836
if crtverify.value != 0:
1304
1837
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1305
1838
raise (gnutls.errors.CertificateSecurityError
1306
(u"Verify failed"))
1839
("Verify failed"))
1307
1840
# New buffer for the fingerprint
1308
1841
buf = ctypes.create_string_buffer(20)
1309
1842
buf_len = ctypes.c_size_t()
1316
1849
# Convert the buffer to a Python bytestring
1317
1850
fpr = ctypes.string_at(buf, buf_len.value)
1318
1851
# Convert the bytestring to hexadecimal notation
1319
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1852
hex_fpr = binascii.hexlify(fpr).upper()
1320
1853
return hex_fpr
1321
1854
1322
1855
1325
1858
def sub_process_main(self, request, address):
1326
1859
try:
1327
1860
self.finish_request(request, address)
1328
except:
1861
except Exception:
1329
1862
self.handle_error(request, address)
1330
1863
self.close_request(request)
1331
1864
1332
1865
def process_request(self, request, address):
1333
1866
"""Start a new process to process the request."""
1334
multiprocessing.Process(target = self.sub_process_main,
1335
args = (request, address)).start()
1867
proc = multiprocessing.Process(target = self.sub_process_main,
1868
args = (request, address))
1869
proc.start()
1870
return proc
1871
1336
1872
1337
1873
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1338
1874
""" adds a pipe to the MixIn """
1342
1878
This function creates a new pipe in self.pipe
1343
1879
"""
1344
1880
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1345
1346
super(MultiprocessingMixInWithPipe,
1347
self).process_request(request, client_address)
1881
1882
proc = MultiprocessingMixIn.process_request(self, request,
1883
client_address)
1348
1884
self.child_pipe.close()
1349
self.add_pipe(parent_pipe)
1350
1351
def add_pipe(self, parent_pipe):
1885
self.add_pipe(parent_pipe, proc)
1886
1887
def add_pipe(self, parent_pipe, proc):
1352
1888
"""Dummy function; override as necessary"""
1353
pass
1889
raise NotImplementedError
1890
1354
1891
1355
1892
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1356
1893
socketserver.TCPServer, object):
1362
1899
use_ipv6: Boolean; to use IPv6 or not
1363
1900
"""
1364
1901
def __init__(self, server_address, RequestHandlerClass,
1365
interface=None, use_ipv6=True):
1902
interface=None, use_ipv6=True, socketfd=None):
1903
"""If socketfd is set, use that file descriptor instead of
1904
creating a new one with socket.socket().
1905
"""
1366
1906
self.interface = interface
1367
1907
if use_ipv6:
1368
1908
self.address_family = socket.AF_INET6
1909
if socketfd is not None:
1910
# Save the file descriptor
1911
self.socketfd = socketfd
1912
# Save the original socket.socket() function
1913
self.socket_socket = socket.socket
1914
# To implement --socket, we monkey patch socket.socket.
1915
#
1916
# (When socketserver.TCPServer is a new-style class, we
1917
# could make self.socket into a property instead of monkey
1918
# patching socket.socket.)
1919
#
1920
# Create a one-time-only replacement for socket.socket()
1921
@functools.wraps(socket.socket)
1922
def socket_wrapper(*args, **kwargs):
1923
# Restore original function so subsequent calls are
1924
# not affected.
1925
socket.socket = self.socket_socket
1926
del self.socket_socket
1927
# This time only, return a new socket object from the
1928
# saved file descriptor.
1929
return socket.fromfd(self.socketfd, *args, **kwargs)
1930
# Replace socket.socket() function with wrapper
1931
socket.socket = socket_wrapper
1932
# The socketserver.TCPServer.__init__ will call
1933
# socket.socket(), which might be our replacement,
1934
# socket_wrapper(), if socketfd was set.
1369
1935
socketserver.TCPServer.__init__(self, server_address,
1370
1936
RequestHandlerClass)
1937
1371
1938
def server_bind(self):
1372
1939
"""This overrides the normal server_bind() function
1373
1940
to bind to an interface if one was specified, and also NOT to
1374
1941
bind to an address or port if they were not specified."""
1375
1942
if self.interface is not None:
1376
1943
if SO_BINDTODEVICE is None:
1377
logger.error(u"SO_BINDTODEVICE does not exist;"
1378
u" cannot bind to interface %s",
1944
logger.error("SO_BINDTODEVICE does not exist;"
1945
" cannot bind to interface %s",
1379
1946
self.interface)
1380
1947
else:
1381
1948
try:
1382
1949
self.socket.setsockopt(socket.SOL_SOCKET,
1383
1950
SO_BINDTODEVICE,
1384
str(self.interface
1385
+ u'\0'))
1386
except socket.error, error:
1387
if error[0] == errno.EPERM:
1388
logger.error(u"No permission to"
1389
u" bind to interface %s",
1390
self.interface)
1391
elif error[0] == errno.ENOPROTOOPT:
1392
logger.error(u"SO_BINDTODEVICE not available;"
1393
u" cannot bind to interface %s",
1394
self.interface)
1951
str(self.interface + '\0'))
1952
except socket.error as error:
1953
if error.errno == errno.EPERM:
1954
logger.error("No permission to bind to"
1955
" interface %s", self.interface)
1956
elif error.errno == errno.ENOPROTOOPT:
1957
logger.error("SO_BINDTODEVICE not available;"
1958
" cannot bind to interface %s",
1959
self.interface)
1960
elif error.errno == errno.ENODEV:
1961
logger.error("Interface %s does not exist,"
1962
" cannot bind", self.interface)
1395
1963
else:
1396
1964
raise
1397
1965
# Only bind(2) the socket if we really need to.
1398
1966
if self.server_address[0] or self.server_address[1]:
1399
1967
if not self.server_address[0]:
1400
1968
if self.address_family == socket.AF_INET6:
1401
any_address = u"::" # in6addr_any
1969
any_address = "::" # in6addr_any
1402
1970
else:
1403
1971
any_address = socket.INADDR_ANY
1404
1972
self.server_address = (any_address,
1427
1995
"""
1428
1996
def __init__(self, server_address, RequestHandlerClass,
1429
1997
interface=None, use_ipv6=True, clients=None,
1430
gnutls_priority=None, use_dbus=True):
1998
gnutls_priority=None, use_dbus=True, socketfd=None):
1431
1999
self.enabled = False
1432
2000
self.clients = clients
1433
2001
if self.clients is None:
1434
self.clients = set()
2002
self.clients = {}
1435
2003
self.use_dbus = use_dbus
1436
2004
self.gnutls_priority = gnutls_priority
1437
2005
IPv6_TCPServer.__init__(self, server_address,
1438
2006
RequestHandlerClass,
1439
2007
interface = interface,
1440
use_ipv6 = use_ipv6)
2008
use_ipv6 = use_ipv6,
2009
socketfd = socketfd)
1441
2010
def server_activate(self):
1442
2011
if self.enabled:
1443
2012
return socketserver.TCPServer.server_activate(self)
2013
1444
2014
def enable(self):
1445
2015
self.enabled = True
1446
def add_pipe(self, parent_pipe):
2016
2017
def add_pipe(self, parent_pipe, proc):
1447
2018
# Call "handle_ipc" for both data and EOF events
1448
2019
gobject.io_add_watch(parent_pipe.fileno(),
1449
2020
gobject.IO_IN | gobject.IO_HUP,
1450
2021
functools.partial(self.handle_ipc,
1451
parent_pipe = parent_pipe))
1452
2022
parent_pipe =
2023
parent_pipe,
2024
proc = proc))
2025
1453
2026
def handle_ipc(self, source, condition, parent_pipe=None,
1454
client_object=None):
1455
condition_names = {
1456
gobject.IO_IN: u"IN", # There is data to read.
1457
gobject.IO_OUT: u"OUT", # Data can be written (without
1458
# blocking).
1459
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1460
gobject.IO_ERR: u"ERR", # Error condition.
1461
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1462
# broken, usually for pipes and
1463
# sockets).
1464
}
1465
conditions_string = ' | '.join(name
1466
for cond, name in
1467
condition_names.iteritems()
1468
if cond & condition)
1469
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1470
conditions_string)
1471
1472
# error or the other end of multiprocessing.Pipe has closed
1473
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2027
proc = None, client_object=None):
2028
# error, or the other end of multiprocessing.Pipe has closed
2029
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2030
# Wait for other process to exit
2031
proc.join()
1474
2032
return False
1475
2033
1476
2034
# Read a request from the child
1477
2035
request = parent_pipe.recv()
1478
logger.debug(u"IPC request: %s", repr(request))
1479
2036
command = request[0]
1480
2037
1481
2038
if command == 'init':
1482
2039
fpr = request[1]
1483
2040
address = request[2]
1484
2041
1485
for c in self.clients:
2042
for c in self.clients.itervalues():
1486
2043
if c.fingerprint == fpr:
1487
2044
client = c
1488
2045
break
1489
2046
else:
1490
logger.warning(u"Client not found for fingerprint: %s, ad"
1491
u"dress: %s", fpr, address)
2047
logger.info("Client not found for fingerprint: %s, ad"
2048
"dress: %s", fpr, address)
1492
2049
if self.use_dbus:
1493
2050
# Emit D-Bus signal
1494
mandos_dbus_service.ClientNotFound(fpr, address)
2051
mandos_dbus_service.ClientNotFound(fpr,
2052
address[0])
1495
2053
parent_pipe.send(False)
1496
2054
return False
1497
2055
1498
2056
gobject.io_add_watch(parent_pipe.fileno(),
1499
2057
gobject.IO_IN | gobject.IO_HUP,
1500
2058
functools.partial(self.handle_ipc,
1501
parent_pipe = parent_pipe,
1502
client_object = client))
2059
parent_pipe =
2060
parent_pipe,
2061
proc = proc,
2062
client_object =
2063
client))
1503
2064
parent_pipe.send(True)
1504
# remove the old hook in favor of the new above hook on same fileno
2065
# remove the old hook in favor of the new above hook on
2066
# same fileno
1505
2067
return False
1506
2068
if command == 'funcall':
1507
2069
funcname = request[1]
1508
2070
args = request[2]
1509
2071
kwargs = request[3]
1510
2072
1511
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1512
2073
parent_pipe.send(('data', getattr(client_object,
2074
funcname)(*args,
2075
**kwargs)))
2076
1513
2077
if command == 'getattr':
1514
2078
attrname = request[1]
1515
2079
if callable(client_object.__getattribute__(attrname)):
1516
2080
parent_pipe.send(('function',))
1517
2081
else:
1518
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2082
parent_pipe.send(('data', client_object
2083
.__getattribute__(attrname)))
1519
2084
1520
2085
if command == 'setattr':
1521
2086
attrname = request[1]
1522
2087
value = request[2]
1523
2088
setattr(client_object, attrname, value)
1524
2089
1525
2090
return True
1526
2091
1527
2092
1528
2093
def string_to_delta(interval):
1529
2094
"""Parse a string and return a datetime.timedelta
1530
2095
1531
>>> string_to_delta(u'7d')
2096
>>> string_to_delta('7d')
1532
2097
datetime.timedelta(7)
1533
>>> string_to_delta(u'60s')
2098
>>> string_to_delta('60s')
1534
2099
datetime.timedelta(0, 60)
1535
>>> string_to_delta(u'60m')
2100
>>> string_to_delta('60m')
1536
2101
datetime.timedelta(0, 3600)
1537
>>> string_to_delta(u'24h')
2102
>>> string_to_delta('24h')
1538
2103
datetime.timedelta(1)
1539
>>> string_to_delta(u'1w')
2104
>>> string_to_delta('1w')
1540
2105
datetime.timedelta(7)
1541
>>> string_to_delta(u'5m 30s')
2106
>>> string_to_delta('5m 30s')
1542
2107
datetime.timedelta(0, 330)
1543
2108
"""
1544
2109
timevalue = datetime.timedelta(0)
1546
2111
try:
1547
2112
suffix = unicode(s[-1])
1548
2113
value = int(s[:-1])
1549
if suffix == u"d":
2114
if suffix == "d":
1550
2115
delta = datetime.timedelta(value)
1551
elif suffix == u"s":
2116
elif suffix == "s":
1552
2117
delta = datetime.timedelta(0, value)
1553
elif suffix == u"m":
2118
elif suffix == "m":
1554
2119
delta = datetime.timedelta(0, 0, 0, 0, value)
1555
elif suffix == u"h":
2120
elif suffix == "h":
1556
2121
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1557
elif suffix == u"w":
2122
elif suffix == "w":
1558
2123
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1559
2124
else:
1560
raise ValueError(u"Unknown suffix %r" % suffix)
1561
except (ValueError, IndexError), e:
1562
raise ValueError(e.message)
2125
raise ValueError("Unknown suffix {0!r}"
2126
.format(suffix))
2127
except (ValueError, IndexError) as e:
2128
raise ValueError(*(e.args))
1563
2129
timevalue += delta
1564
2130
return timevalue
1565
2131
1566
2132
1567
def if_nametoindex(interface):
1568
"""Call the C function if_nametoindex(), or equivalent
1569
1570
Note: This function cannot accept a unicode string."""
1571
global if_nametoindex
1572
try:
1573
if_nametoindex = (ctypes.cdll.LoadLibrary
1574
(ctypes.util.find_library(u"c"))
1575
.if_nametoindex)
1576
except (OSError, AttributeError):
1577
logger.warning(u"Doing if_nametoindex the hard way")
1578
def if_nametoindex(interface):
1579
"Get an interface index the hard way, i.e. using fcntl()"
1580
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1581
with contextlib.closing(socket.socket()) as s:
1582
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1583
struct.pack(str(u"16s16x"),
1584
interface))
1585
interface_index = struct.unpack(str(u"I"),
1586
ifreq[16:20])[0]
1587
return interface_index
1588
return if_nametoindex(interface)
1589
1590
1591
2133
def daemon(nochdir = False, noclose = False):
1592
2134
"""See daemon(3). Standard BSD Unix function.
1593
2135
1596
2138
sys.exit()
1597
2139
os.setsid()
1598
2140
if not nochdir:
1599
os.chdir(u"/")
2141
os.chdir("/")
1600
2142
if os.fork():
1601
2143
sys.exit()
1602
2144
if not noclose:
1603
2145
# Close all standard open file descriptors
1604
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2146
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1605
2147
if not stat.S_ISCHR(os.fstat(null).st_mode):
1606
2148
raise OSError(errno.ENODEV,
1607
u"%s not a character device"
1608
% os.path.devnull)
2149
"{0} not a character device"
2150
.format(os.devnull))
1609
2151
os.dup2(null, sys.stdin.fileno())
1610
2152
os.dup2(null, sys.stdout.fileno())
1611
2153
os.dup2(null, sys.stderr.fileno())
1618
2160
##################################################################
1619
2161
# Parsing of options, both command line and config file
1620
2162
1621
parser = optparse.OptionParser(version = "%%prog %s" % version)
1622
parser.add_option("-i", u"--interface", type=u"string",
1623
metavar="IF", help=u"Bind to interface IF")
1624
parser.add_option("-a", u"--address", type=u"string",
1625
help=u"Address to listen for requests on")
1626
parser.add_option("-p", u"--port", type=u"int",
1627
help=u"Port number to receive requests on")
1628
parser.add_option("--check", action=u"store_true",
1629
help=u"Run self-test")
1630
parser.add_option("--debug", action=u"store_true",
1631
help=u"Debug mode; run in foreground and log to"
1632
u" terminal")
1633
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1634
help=u"Debug level for stdout output")
1635
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1636
u" priority string (see GnuTLS documentation)")
1637
parser.add_option("--servicename", type=u"string",
1638
metavar=u"NAME", help=u"Zeroconf service name")
1639
parser.add_option("--configdir", type=u"string",
1640
default=u"/etc/mandos", metavar=u"DIR",
1641
help=u"Directory to search for configuration"
1642
u" files")
1643
parser.add_option("--no-dbus", action=u"store_false",
1644
dest=u"use_dbus", help=u"Do not provide D-Bus"
1645
u" system bus interface")
1646
parser.add_option("--no-ipv6", action=u"store_false",
1647
dest=u"use_ipv6", help=u"Do not use IPv6")
1648
options = parser.parse_args()[0]
2163
parser = argparse.ArgumentParser()
2164
parser.add_argument("-v", "--version", action="version",
2165
version = "%(prog)s {0}".format(version),
2166
help="show version number and exit")
2167
parser.add_argument("-i", "--interface", metavar="IF",
2168
help="Bind to interface IF")
2169
parser.add_argument("-a", "--address",
2170
help="Address to listen for requests on")
2171
parser.add_argument("-p", "--port", type=int,
2172
help="Port number to receive requests on")
2173
parser.add_argument("--check", action="store_true",
2174
help="Run self-test")
2175
parser.add_argument("--debug", action="store_true",
2176
help="Debug mode; run in foreground and log"
2177
" to terminal")
2178
parser.add_argument("--debuglevel", metavar="LEVEL",
2179
help="Debug level for stdout output")
2180
parser.add_argument("--priority", help="GnuTLS"
2181
" priority string (see GnuTLS documentation)")
2182
parser.add_argument("--servicename",
2183
metavar="NAME", help="Zeroconf service name")
2184
parser.add_argument("--configdir",
2185
default="/etc/mandos", metavar="DIR",
2186
help="Directory to search for configuration"
2187
" files")
2188
parser.add_argument("--no-dbus", action="store_false",
2189
dest="use_dbus", help="Do not provide D-Bus"
2190
" system bus interface")
2191
parser.add_argument("--no-ipv6", action="store_false",
2192
dest="use_ipv6", help="Do not use IPv6")
2193
parser.add_argument("--no-restore", action="store_false",
2194
dest="restore", help="Do not restore stored"
2195
" state")
2196
parser.add_argument("--socket", type=int,
2197
help="Specify a file descriptor to a network"
2198
" socket to use instead of creating one")
2199
parser.add_argument("--statedir", metavar="DIR",
2200
help="Directory to save/restore state in")
2201
parser.add_argument("--foreground", action="store_true",
2202
help="Run in foreground")
2203
2204
options = parser.parse_args()
1649
2205
1650
2206
if options.check:
1651
2207
import doctest
1653
2209
sys.exit()
1654
2210
1655
2211
# Default values for config file for server-global settings
1656
server_defaults = { u"interface": u"",
1657
u"address": u"",
1658
u"port": u"",
1659
u"debug": u"False",
1660
u"priority":
1661
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1662
u"servicename": u"Mandos",
1663
u"use_dbus": u"True",
1664
u"use_ipv6": u"True",
1665
u"debuglevel": u"",
2212
server_defaults = { "interface": "",
2213
"address": "",
2214
"port": "",
2215
"debug": "False",
2216
"priority":
2217
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2218
"servicename": "Mandos",
2219
"use_dbus": "True",
2220
"use_ipv6": "True",
2221
"debuglevel": "",
2222
"restore": "True",
2223
"socket": "",
2224
"statedir": "/var/lib/mandos",
2225
"foreground": "False",
1666
2226
}
1667
2227
1668
2228
# Parse config file for server-global settings
1669
2229
server_config = configparser.SafeConfigParser(server_defaults)
1670
2230
del server_defaults
1671
2231
server_config.read(os.path.join(options.configdir,
1672
u"mandos.conf"))
2232
"mandos.conf"))
1673
2233
# Convert the SafeConfigParser object to a dict
1674
2234
server_settings = server_config.defaults()
1675
2235
# Use the appropriate methods on the non-string config options
1676
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1677
server_settings[option] = server_config.getboolean(u"DEFAULT",
2236
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2237
server_settings[option] = server_config.getboolean("DEFAULT",
1678
2238
option)
1679
2239
if server_settings["port"]:
1680
server_settings["port"] = server_config.getint(u"DEFAULT",
1681
u"port")
2240
server_settings["port"] = server_config.getint("DEFAULT",
2241
"port")
2242
if server_settings["socket"]:
2243
server_settings["socket"] = server_config.getint("DEFAULT",
2244
"socket")
2245
# Later, stdin will, and stdout and stderr might, be dup'ed
2246
# over with an opened os.devnull. But we don't want this to
2247
# happen with a supplied network socket.
2248
if 0 <= server_settings["socket"] <= 2:
2249
server_settings["socket"] = os.dup(server_settings
2250
["socket"])
1682
2251
del server_config
1683
2252
1684
2253
# Override the settings from the config file with command line
1685
2254
# options, if set.
1686
for option in (u"interface", u"address", u"port", u"debug",
1687
u"priority", u"servicename", u"configdir",
1688
u"use_dbus", u"use_ipv6", u"debuglevel"):
2255
for option in ("interface", "address", "port", "debug",
2256
"priority", "servicename", "configdir",
2257
"use_dbus", "use_ipv6", "debuglevel", "restore",
2258
"statedir", "socket", "foreground"):
1689
2259
value = getattr(options, option)
1690
2260
if value is not None:
1691
2261
server_settings[option] = value
1694
2264
for option in server_settings.keys():
1695
2265
if type(server_settings[option]) is str:
1696
2266
server_settings[option] = unicode(server_settings[option])
2267
# Debug implies foreground
2268
if server_settings["debug"]:
2269
server_settings["foreground"] = True
1697
2270
# Now we have our good server settings in "server_settings"
1698
2271
1699
2272
##################################################################
1700
2273
1701
2274
# For convenience
1702
debug = server_settings[u"debug"]
1703
debuglevel = server_settings[u"debuglevel"]
1704
use_dbus = server_settings[u"use_dbus"]
1705
use_ipv6 = server_settings[u"use_ipv6"]
1706
1707
if server_settings[u"servicename"] != u"Mandos":
2275
debug = server_settings["debug"]
2276
debuglevel = server_settings["debuglevel"]
2277
use_dbus = server_settings["use_dbus"]
2278
use_ipv6 = server_settings["use_ipv6"]
2279
stored_state_path = os.path.join(server_settings["statedir"],
2280
stored_state_file)
2281
foreground = server_settings["foreground"]
2282
2283
if debug:
2284
initlogger(debug, logging.DEBUG)
2285
else:
2286
if not debuglevel:
2287
initlogger(debug)
2288
else:
2289
level = getattr(logging, debuglevel.upper())
2290
initlogger(debug, level)
2291
2292
if server_settings["servicename"] != "Mandos":
1708
2293
syslogger.setFormatter(logging.Formatter
1709
(u'Mandos (%s) [%%(process)d]:'
1710
u' %%(levelname)s: %%(message)s'
1711
% server_settings[u"servicename"]))
2294
('Mandos ({0}) [%(process)d]:'
2295
' %(levelname)s: %(message)s'
2296
.format(server_settings
2297
["servicename"])))
1712
2298
1713
2299
# Parse config file with clients
1714
client_defaults = { u"timeout": u"1h",
1715
u"interval": u"5m",
1716
u"checker": u"fping -q -- %%(host)s",
1717
u"host": u"",
1718
u"approved_delay": u"0s",
1719
u"approved_duration": u"1s",
1720
}
1721
client_config = configparser.SafeConfigParser(client_defaults)
1722
client_config.read(os.path.join(server_settings[u"configdir"],
1723
u"clients.conf"))
2300
client_config = configparser.SafeConfigParser(Client
2301
.client_defaults)
2302
client_config.read(os.path.join(server_settings["configdir"],
2303
"clients.conf"))
1724
2304
1725
2305
global mandos_dbus_service
1726
2306
mandos_dbus_service = None
1727
2307
1728
tcp_server = MandosServer((server_settings[u"address"],
1729
server_settings[u"port"]),
2308
tcp_server = MandosServer((server_settings["address"],
2309
server_settings["port"]),
1730
2310
ClientHandler,
1731
interface=server_settings[u"interface"],
2311
interface=(server_settings["interface"]
2312
or None),
1732
2313
use_ipv6=use_ipv6,
1733
2314
gnutls_priority=
1734
server_settings[u"priority"],
1735
use_dbus=use_dbus)
1736
pidfilename = u"/var/run/mandos.pid"
1737
try:
1738
pidfile = open(pidfilename, u"w")
1739
except IOError:
1740
logger.error(u"Could not open file %r", pidfilename)
2315
server_settings["priority"],
2316
use_dbus=use_dbus,
2317
socketfd=(server_settings["socket"]
2318
or None))
2319
if not foreground:
2320
pidfilename = "/var/run/mandos.pid"
2321
pidfile = None
2322
try:
2323
pidfile = open(pidfilename, "w")
2324
except IOError as e:
2325
logger.error("Could not open file %r", pidfilename,
2326
exc_info=e)
1741
2327
1742
try:
1743
uid = pwd.getpwnam(u"_mandos").pw_uid
1744
gid = pwd.getpwnam(u"_mandos").pw_gid
1745
except KeyError:
2328
for name in ("_mandos", "mandos", "nobody"):
1746
2329
try:
1747
uid = pwd.getpwnam(u"mandos").pw_uid
1748
gid = pwd.getpwnam(u"mandos").pw_gid
2330
uid = pwd.getpwnam(name).pw_uid
2331
gid = pwd.getpwnam(name).pw_gid
2332
break
1749
2333
except KeyError:
1750
try:
1751
uid = pwd.getpwnam(u"nobody").pw_uid
1752
gid = pwd.getpwnam(u"nobody").pw_gid
1753
except KeyError:
1754
uid = 65534
1755
gid = 65534
2334
continue
2335
else:
2336
uid = 65534
2337
gid = 65534
1756
2338
try:
1757
2339
os.setgid(gid)
1758
2340
os.setuid(uid)
1759
except OSError, error:
1760
if error[0] != errno.EPERM:
2341
except OSError as error:
2342
if error.errno != errno.EPERM:
1761
2343
raise error
1762
2344
1763
# Enable all possible GnuTLS debugging
1764
1765
1766
if not debug and not debuglevel:
1767
syslogger.setLevel(logging.WARNING)
1768
console.setLevel(logging.WARNING)
1769
if debuglevel:
1770
level = getattr(logging, debuglevel.upper())
1771
syslogger.setLevel(level)
1772
console.setLevel(level)
1773
1774
2345
if debug:
2346
# Enable all possible GnuTLS debugging
2347
1775
2348
# "Use a log level over 10 to enable all debugging options."
1776
2349
# - GnuTLS manual
1777
2350
gnutls.library.functions.gnutls_global_set_log_level(11)
1778
2351
1779
2352
@gnutls.library.types.gnutls_log_func
1780
2353
def debug_gnutls(level, string):
1781
logger.debug(u"GnuTLS: %s", string[:-1])
2354
logger.debug("GnuTLS: %s", string[:-1])
1782
2355
1783
2356
(gnutls.library.functions
1784
2357
.gnutls_global_set_log_function(debug_gnutls))
1785
2358
1786
2359
# Redirect stdin so all checkers get /dev/null
1787
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2360
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1788
2361
os.dup2(null, sys.stdin.fileno())
1789
2362
if null > 2:
1790
2363
os.close(null)
1791
else:
1792
# No console logging
1793
logger.removeHandler(console)
1794
2364
2365
# Need to fork before connecting to D-Bus
2366
if not foreground:
2367
# Close all input and output, do double fork, etc.
2368
daemon()
2369
2370
# multiprocessing will use threads, so before we use gobject we
2371
# need to inform gobject that threads will be used.
2372
gobject.threads_init()
1795
2373
1796
2374
global main_loop
1797
2375
# From the Avahi example code
1798
DBusGMainLoop(set_as_default=True )
2376
DBusGMainLoop(set_as_default=True)
1799
2377
main_loop = gobject.MainLoop()
1800
2378
bus = dbus.SystemBus()
1801
2379
# End of Avahi example code
1802
2380
if use_dbus:
1803
2381
try:
1804
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2382
bus_name = dbus.service.BusName("se.recompile.Mandos",
1805
2383
bus, do_not_queue=True)
1806
except dbus.exceptions.NameExistsException, e:
1807
logger.error(unicode(e) + u", disabling D-Bus")
2384
old_bus_name = (dbus.service.BusName
2385
("se.bsnet.fukt.Mandos", bus,
2386
do_not_queue=True))
2387
except dbus.exceptions.NameExistsException as e:
2388
logger.error("Disabling D-Bus:", exc_info=e)
1808
2389
use_dbus = False
1809
server_settings[u"use_dbus"] = False
2390
server_settings["use_dbus"] = False
1810
2391
tcp_server.use_dbus = False
1811
2392
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1812
service = AvahiService(name = server_settings[u"servicename"],
1813
servicetype = u"_mandos._tcp",
1814
protocol = protocol, bus = bus)
2393
service = AvahiServiceToSyslog(name =
2394
server_settings["servicename"],
2395
servicetype = "_mandos._tcp",
2396
protocol = protocol, bus = bus)
1815
2397
if server_settings["interface"]:
1816
2398
service.interface = (if_nametoindex
1817
(str(server_settings[u"interface"])))
1818
1819
if not debug:
1820
# Close all input and output, do double fork, etc.
1821
daemon()
1822
2399
(str(server_settings["interface"])))
2400
1823
2401
global multiprocessing_manager
1824
2402
multiprocessing_manager = multiprocessing.Manager()
1825
2403
1826
2404
client_class = Client
1827
2405
if use_dbus:
1828
2406
client_class = functools.partial(ClientDBus, bus = bus)
1829
def client_config_items(config, section):
1830
special_settings = {
1831
"approved_by_default":
1832
lambda: config.getboolean(section,
1833
"approved_by_default"),
1834
}
1835
for name, value in config.items(section):
2407
2408
client_settings = Client.config_parser(client_config)
2409
old_client_settings = {}
2410
clients_data = {}
2411
2412
# Get client data and settings from last running state.
2413
if server_settings["restore"]:
2414
try:
2415
with open(stored_state_path, "rb") as stored_state:
2416
clients_data, old_client_settings = (pickle.load
2417
(stored_state))
2418
os.remove(stored_state_path)
2419
except IOError as e:
2420
if e.errno == errno.ENOENT:
2421
logger.warning("Could not load persistent state: {0}"
2422
.format(os.strerror(e.errno)))
2423
else:
2424
logger.critical("Could not load persistent state:",
2425
exc_info=e)
2426
raise
2427
except EOFError as e:
2428
logger.warning("Could not load persistent state: "
2429
"EOFError:", exc_info=e)
2430
2431
with PGPEngine() as pgp:
2432
for client_name, client in clients_data.iteritems():
2433
# Decide which value to use after restoring saved state.
2434
# We have three different values: Old config file,
2435
# new config file, and saved state.
2436
# New config value takes precedence if it differs from old
2437
# config value, otherwise use saved state.
2438
for name, value in client_settings[client_name].items():
2439
try:
2440
# For each value in new config, check if it
2441
# differs from the old config value (Except for
2442
# the "secret" attribute)
2443
if (name != "secret" and
2444
value != old_client_settings[client_name]
2445
[name]):
2446
client[name] = value
2447
except KeyError:
2448
pass
2449
2450
# Clients who has passed its expire date can still be
2451
# enabled if its last checker was successful. Clients
2452
# whose checker succeeded before we stored its state is
2453
# assumed to have successfully run all checkers during
2454
# downtime.
2455
if client["enabled"]:
2456
if datetime.datetime.utcnow() >= client["expires"]:
2457
if not client["last_checked_ok"]:
2458
logger.warning(
2459
"disabling client {0} - Client never "
2460
"performed a successful checker"
2461
.format(client_name))
2462
client["enabled"] = False
2463
elif client["last_checker_status"] != 0:
2464
logger.warning(
2465
"disabling client {0} - Client "
2466
"last checker failed with error code {1}"
2467
.format(client_name,
2468
client["last_checker_status"]))
2469
client["enabled"] = False
2470
else:
2471
client["expires"] = (datetime.datetime
2472
.utcnow()
2473
+ client["timeout"])
2474
logger.debug("Last checker succeeded,"
2475
" keeping {0} enabled"
2476
.format(client_name))
1836
2477
try:
1837
yield (name, special_settings[name]())
1838
except KeyError:
1839
yield (name, value)
1840
1841
tcp_server.clients.update(set(
1842
client_class(name = section,
1843
config= dict(client_config_items(
1844
client_config, section)))
1845
for section in client_config.sections()))
2478
client["secret"] = (
2479
pgp.decrypt(client["encrypted_secret"],
2480
client_settings[client_name]
2481
["secret"]))
2482
except PGPError:
2483
# If decryption fails, we use secret from new settings
2484
logger.debug("Failed to decrypt {0} old secret"
2485
.format(client_name))
2486
client["secret"] = (
2487
client_settings[client_name]["secret"])
2488
2489
# Add/remove clients based on new changes made to config
2490
for client_name in (set(old_client_settings)
2491
- set(client_settings)):
2492
del clients_data[client_name]
2493
for client_name in (set(client_settings)
2494
- set(old_client_settings)):
2495
clients_data[client_name] = client_settings[client_name]
2496
2497
# Create all client objects
2498
for client_name, client in clients_data.iteritems():
2499
tcp_server.clients[client_name] = client_class(
2500
name = client_name, settings = client)
2501
1846
2502
if not tcp_server.clients:
1847
logger.warning(u"No clients defined")
1848
1849
try:
1850
with pidfile:
1851
pid = os.getpid()
1852
pidfile.write(str(pid) + "\n")
2503
logger.warning("No clients defined")
2504
2505
if not foreground:
2506
if pidfile is not None:
2507
try:
2508
with pidfile:
2509
pid = os.getpid()
2510
pidfile.write(str(pid) + "\n".encode("utf-8"))
2511
except IOError:
2512
logger.error("Could not write to file %r with PID %d",
2513
pidfilename, pid)
1853
2514
del pidfile
1854
except IOError:
1855
logger.error(u"Could not write to file %r with PID %d",
1856
pidfilename, pid)
1857
except NameError:
1858
# "pidfile" was never created
1859
pass
1860
del pidfilename
2515
del pidfilename
1861
2516
1862
if not debug:
1863
signal.signal(signal.SIGINT, signal.SIG_IGN)
1864
2517
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1865
2518
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1866
2519
1867
2520
if use_dbus:
1868
class MandosDBusService(dbus.service.Object):
2521
@alternate_dbus_interfaces({"se.recompile.Mandos":
2522
"se.bsnet.fukt.Mandos"})
2523
class MandosDBusService(DBusObjectWithProperties):
1869
2524
"""A D-Bus proxy object"""
1870
2525
def __init__(self):
1871
dbus.service.Object.__init__(self, bus, u"/")
1872
_interface = u"se.bsnet.fukt.Mandos"
1873
1874
@dbus.service.signal(_interface, signature=u"o")
2526
dbus.service.Object.__init__(self, bus, "/")
2527
_interface = "se.recompile.Mandos"
2528
2529
@dbus_interface_annotations(_interface)
2530
def _foo(self):
2531
return { "org.freedesktop.DBus.Property"
2532
".EmitsChangedSignal":
2533
"false"}
2534
2535
@dbus.service.signal(_interface, signature="o")
1875
2536
def ClientAdded(self, objpath):
1876
2537
"D-Bus signal"
1877
2538
pass
1878
2539
1879
@dbus.service.signal(_interface, signature=u"ss")
2540
@dbus.service.signal(_interface, signature="ss")
1880
2541
def ClientNotFound(self, fingerprint, address):
1881
2542
"D-Bus signal"
1882
2543
pass
1883
2544
1884
@dbus.service.signal(_interface, signature=u"os")
2545
@dbus.service.signal(_interface, signature="os")
1885
2546
def ClientRemoved(self, objpath, name):
1886
2547
"D-Bus signal"
1887
2548
pass
1888
2549
1889
@dbus.service.method(_interface, out_signature=u"ao")
2550
@dbus.service.method(_interface, out_signature="ao")
1890
2551
def GetAllClients(self):
1891
2552
"D-Bus method"
1892
2553
return dbus.Array(c.dbus_object_path
1893
for c in tcp_server.clients)
2554
for c in
2555
tcp_server.clients.itervalues())
1894
2556
1895
2557
@dbus.service.method(_interface,
1896
out_signature=u"a{oa{sv}}")
2558
out_signature="a{oa{sv}}")
1897
2559
def GetAllClientsWithProperties(self):
1898
2560
"D-Bus method"
1899
2561
return dbus.Dictionary(
1900
((c.dbus_object_path, c.GetAll(u""))
1901
for c in tcp_server.clients),
1902
signature=u"oa{sv}")
2562
((c.dbus_object_path, c.GetAll(""))
2563
for c in tcp_server.clients.itervalues()),
2564
signature="oa{sv}")
1903
2565
1904
@dbus.service.method(_interface, in_signature=u"o")
2566
@dbus.service.method(_interface, in_signature="o")
1905
2567
def RemoveClient(self, object_path):
1906
2568
"D-Bus method"
1907
for c in tcp_server.clients:
2569
for c in tcp_server.clients.itervalues():
1908
2570
if c.dbus_object_path == object_path:
1909
tcp_server.clients.remove(c)
2571
del tcp_server.clients[c.name]
1910
2572
c.remove_from_connection()
1911
2573
# Don't signal anything except ClientRemoved
1912
2574
c.disable(quiet=True)
1923
2585
"Cleanup function; run on exit"
1924
2586
service.cleanup()
1925
2587
2588
multiprocessing.active_children()
2589
if not (tcp_server.clients or client_settings):
2590
return
2591
2592
# Store client before exiting. Secrets are encrypted with key
2593
# based on what config file has. If config file is
2594
# removed/edited, old secret will thus be unrecovable.
2595
clients = {}
2596
with PGPEngine() as pgp:
2597
for client in tcp_server.clients.itervalues():
2598
key = client_settings[client.name]["secret"]
2599
client.encrypted_secret = pgp.encrypt(client.secret,
2600
key)
2601
client_dict = {}
2602
2603
# A list of attributes that can not be pickled
2604
# + secret.
2605
exclude = set(("bus", "changedstate", "secret",
2606
"checker"))
2607
for name, typ in (inspect.getmembers
2608
(dbus.service.Object)):
2609
exclude.add(name)
2610
2611
client_dict["encrypted_secret"] = (client
2612
.encrypted_secret)
2613
for attr in client.client_structure:
2614
if attr not in exclude:
2615
client_dict[attr] = getattr(client, attr)
2616
2617
clients[client.name] = client_dict
2618
del client_settings[client.name]["secret"]
2619
2620
try:
2621
with (tempfile.NamedTemporaryFile
2622
(mode='wb', suffix=".pickle", prefix='clients-',
2623
dir=os.path.dirname(stored_state_path),
2624
delete=False)) as stored_state:
2625
pickle.dump((clients, client_settings), stored_state)
2626
tempname=stored_state.name
2627
os.rename(tempname, stored_state_path)
2628
except (IOError, OSError) as e:
2629
if not debug:
2630
try:
2631
os.remove(tempname)
2632
except NameError:
2633
pass
2634
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2635
logger.warning("Could not save persistent state: {0}"
2636
.format(os.strerror(e.errno)))
2637
else:
2638
logger.warning("Could not save persistent state:",
2639
exc_info=e)
2640
raise e
2641
2642
# Delete all clients, and settings from config
1926
2643
while tcp_server.clients:
1927
client = tcp_server.clients.pop()
2644
name, client = tcp_server.clients.popitem()
1928
2645
if use_dbus:
1929
2646
client.remove_from_connection()
1930
client.disable_hook = None
1931
2647
# Don't signal anything except ClientRemoved
1932
2648
client.disable(quiet=True)
1933
2649
if use_dbus:
1934
2650
# Emit D-Bus signal
1935
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2651
mandos_dbus_service.ClientRemoved(client
2652
.dbus_object_path,
1936
2653
client.name)
2654
client_settings.clear()
1937
2655
1938
2656
atexit.register(cleanup)
1939
2657
1940
for client in tcp_server.clients:
2658
for client in tcp_server.clients.itervalues():
1941
2659
if use_dbus:
1942
2660
# Emit D-Bus signal
1943
2661
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1944
client.enable()
2662
# Need to initiate checking of clients
2663
if client.enabled:
2664
client.init_checker()
1945
2665
1946
2666
tcp_server.enable()
1947
2667
tcp_server.server_activate()
1949
2669
# Find out what port we got
1950
2670
service.port = tcp_server.socket.getsockname()[1]
1951
2671
if use_ipv6:
1952
logger.info(u"Now listening on address %r, port %d,"
1953
" flowinfo %d, scope_id %d"
1954
% tcp_server.socket.getsockname())
2672
logger.info("Now listening on address %r, port %d,"
2673
" flowinfo %d, scope_id %d",
2674
*tcp_server.socket.getsockname())
1955
2675
else: # IPv4
1956
logger.info(u"Now listening on address %r, port %d"
1957
% tcp_server.socket.getsockname())
2676
logger.info("Now listening on address %r, port %d",
2677
*tcp_server.socket.getsockname())
1958
2678
1959
2679
#service.interface = tcp_server.socket.getsockname()[3]
1960
2680
1962
2682
# From the Avahi example code
1963
2683
try:
1964
2684
service.activate()
1965
except dbus.exceptions.DBusException, error:
1966
logger.critical(u"DBusException: %s", error)
2685
except dbus.exceptions.DBusException as error:
2686
logger.critical("D-Bus Exception", exc_info=error)
1967
2687
cleanup()
1968
2688
sys.exit(1)
1969
2689
# End of Avahi example code
1973
2693
(tcp_server.handle_request
1974
2694
(*args[2:], **kwargs) or True))
1975
2695
1976
logger.debug(u"Starting main loop")
2696
logger.debug("Starting main loop")
1977
2697
main_loop.run()
1978
except AvahiError, error:
1979
logger.critical(u"AvahiError: %s", error)
2698
except AvahiError as error:
2699
logger.critical("Avahi Error", exc_info=error)
1980
2700
cleanup()
1981
2701
sys.exit(1)
1982
2702
except KeyboardInterrupt:
1983
2703
if debug:
1984
print >> sys.stderr
1985
logger.debug(u"Server received KeyboardInterrupt")
1986
logger.debug(u"Server exiting")
2704
print("", file=sys.stderr)
2705
logger.debug("Server received KeyboardInterrupt")
2706
logger.debug("Server exiting")
1987
2707
# Must run before the D-Bus bus name gets deregistered
1988
2708
cleanup()
1989
2709
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0