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- Committer: Teddy Hogeborn
- Date: 2010-06-19 00:37:04 UTC
- mto: (24.1.149 mandos)
- mto: This revision was merged to the branch mainline in revision 417.
- Revision ID: teddy@fukt.bsnet.se-20100619003704-vpicvssvv1ktg2om
* mandos (ClientHandler.handle): Set up the GnuTLS session object
before reading the protocol number.
(ClientHandler.handle/ProxyObject): New.
before reading the protocol number.
(ClientHandler.handle/ProxyObject): New.
- files removed:
- DBUS-API
- debian/source
- network-hooks.d
- files modified:
- .bzrignore
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 Björn Påhlsson
14
# Copyright © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 Björn Påhlsson
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16
#
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# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
30
#
31
# Contact the authors at <mandos@recompile.se>.
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
#
33
33
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
37
from future_builtins import *
34
from __future__ import division, with_statement, absolute_import
38
35
39
36
import SocketServer as socketserver
40
37
import socket
41
import argparse
38
import optparse
42
39
import datetime
43
40
import errno
44
41
import gnutls.crypto
63
60
import fcntl
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61
import functools
65
62
import cPickle as pickle
66
import multiprocessing
67
import types
68
import binascii
69
import tempfile
70
import itertools
63
import select
71
64
72
65
import dbus
73
66
import dbus.service
78
71
import ctypes.util
79
72
import xml.dom.minidom
80
73
import inspect
81
import GnuPGInterface
82
74
83
75
try:
84
76
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
88
80
except ImportError:
89
81
SO_BINDTODEVICE = None
90
82
91
version = "1.6.0"
92
stored_state_file = "clients.pickle"
93
94
logger = logging.getLogger()
83
84
version = "1.0.14"
85
86
logger = logging.Logger(u'mandos')
95
87
syslogger = (logging.handlers.SysLogHandler
96
88
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
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()
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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
89
address = "/dev/log"))
90
syslogger.setFormatter(logging.Formatter
91
(u'Mandos [%(process)d]: %(levelname)s:'
92
u' %(message)s'))
93
logger.addHandler(syslogger)
94
95
console = logging.StreamHandler()
96
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
97
u' %(levelname)s:'
98
u' %(message)s'))
99
logger.addHandler(console)
213
100
214
101
class AvahiError(Exception):
215
102
def __init__(self, value, *args, **kwargs):
231
118
Attributes:
232
119
interface: integer; avahi.IF_UNSPEC or an interface index.
233
120
Used to optionally bind to the specified interface.
234
name: string; Example: 'Mandos'
235
type: string; Example: '_mandos._tcp'.
121
name: string; Example: u'Mandos'
122
type: string; Example: u'_mandos._tcp'.
236
123
See <http://www.dns-sd.org/ServiceTypes.html>
237
124
port: integer; what port to announce
238
125
TXT: list of strings; TXT record for the service
245
132
server: D-Bus Server
246
133
bus: dbus.SystemBus()
247
134
"""
248
249
135
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
250
136
servicetype = None, port = None, TXT = None,
251
domain = "", host = "", max_renames = 32768,
137
domain = u"", host = u"", max_renames = 32768,
252
138
protocol = avahi.PROTO_UNSPEC, bus = None):
253
139
self.interface = interface
254
140
self.name = name
263
149
self.group = None # our entry group
264
150
self.server = None
265
151
self.bus = bus
266
self.entry_group_state_changed_match = None
267
268
152
def rename(self):
269
153
"""Derived from the Avahi example code"""
270
154
if self.rename_count >= self.max_renames:
271
logger.critical("No suitable Zeroconf service name found"
272
" after %i retries, exiting.",
155
logger.critical(u"No suitable Zeroconf service name found"
156
u" after %i retries, exiting.",
273
157
self.rename_count)
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 ...",
278
self.name)
158
raise AvahiServiceError(u"Too many renames")
159
self.name = self.server.GetAlternativeServiceName(self.name)
160
logger.info(u"Changing Zeroconf service name to %r ...",
161
unicode(self.name))
162
syslogger.setFormatter(logging.Formatter
163
(u'Mandos (%s) [%%(process)d]:'
164
u' %%(levelname)s: %%(message)s'
165
% self.name))
279
166
self.remove()
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)
167
self.add()
286
168
self.rename_count += 1
287
288
169
def remove(self):
289
170
"""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
293
171
if self.group is not None:
294
172
self.group.Reset()
295
296
173
def add(self):
297
174
"""Derived from the Avahi example code"""
298
self.remove()
299
175
if self.group is None:
300
176
self.group = dbus.Interface(
301
177
self.bus.get_object(avahi.DBUS_NAME,
302
178
self.server.EntryGroupNew()),
303
179
avahi.DBUS_INTERFACE_ENTRY_GROUP)
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' ...",
180
self.group.connect_to_signal('StateChanged',
181
self
182
.entry_group_state_changed)
183
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
308
184
self.name, self.type)
309
185
self.group.AddService(
310
186
self.interface,
315
191
dbus.UInt16(self.port),
316
192
avahi.string_array_to_txt_array(self.TXT))
317
193
self.group.Commit()
318
319
194
def entry_group_state_changed(self, state, error):
320
195
"""Derived from the Avahi example code"""
321
logger.debug("Avahi entry group state change: %i", state)
196
logger.debug(u"Avahi state change: %i", state)
322
197
323
198
if state == avahi.ENTRY_GROUP_ESTABLISHED:
324
logger.debug("Zeroconf service established.")
199
logger.debug(u"Zeroconf service established.")
325
200
elif state == avahi.ENTRY_GROUP_COLLISION:
326
logger.info("Zeroconf service name collision.")
201
logger.warning(u"Zeroconf service name collision.")
327
202
self.rename()
328
203
elif state == avahi.ENTRY_GROUP_FAILURE:
329
logger.critical("Avahi: Error in group state changed %s",
204
logger.critical(u"Avahi: Error in group state changed %s",
330
205
unicode(error))
331
raise AvahiGroupError("State changed: {0!s}"
332
.format(error))
333
206
raise AvahiGroupError(u"State changed: %s"
207
% unicode(error))
334
208
def cleanup(self):
335
209
"""Derived from the Avahi example code"""
336
210
if self.group is not None:
337
try:
338
self.group.Free()
339
except (dbus.exceptions.UnknownMethodException,
340
dbus.exceptions.DBusException):
341
pass
211
self.group.Free()
342
212
self.group = None
343
self.remove()
344
345
def server_state_changed(self, state, error=None):
213
def server_state_changed(self, state):
346
214
"""Derived from the Avahi example code"""
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()
215
if state == avahi.SERVER_COLLISION:
216
logger.error(u"Zeroconf server name collision")
217
self.remove()
362
218
elif state == avahi.SERVER_RUNNING:
363
219
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
370
220
def activate(self):
371
221
"""Derived from the Avahi example code"""
372
222
if self.server is None:
373
223
self.server = dbus.Interface(
374
224
self.bus.get_object(avahi.DBUS_NAME,
375
avahi.DBUS_PATH_SERVER,
376
follow_name_owner_changes=True),
225
avahi.DBUS_PATH_SERVER),
377
226
avahi.DBUS_INTERFACE_SERVER)
378
self.server.connect_to_signal("StateChanged",
227
self.server.connect_to_signal(u"StateChanged",
379
228
self.server_state_changed)
380
229
self.server_state_changed(self.server.GetState())
381
230
382
231
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
401
232
class Client(object):
402
233
"""A representation of a client host served by this server.
403
234
404
235
Attributes:
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
236
name: string; from the config file, used in log messages and
237
D-Bus identifiers
238
fingerprint: string (40 or 32 hexadecimal digits); used to
239
uniquely identify the client
240
secret: bytestring; sent verbatim (over TLS) to client
241
host: string; available for use by the checker command
242
created: datetime.datetime(); (UTC) object creation
243
last_enabled: datetime.datetime(); (UTC)
244
enabled: bool()
245
last_checked_ok: datetime.datetime(); (UTC) or None
246
timeout: datetime.timedelta(); How long from last_checked_ok
247
until this client is disabled
248
interval: datetime.timedelta(); How often to start a new checker
249
disable_hook: If set, called by disable() as disable_hook(self)
408
250
checker: subprocess.Popen(); a running checker process used
409
251
to see if the client lives.
410
252
'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
253
checker_initiator_tag: a gobject event source tag, or None
254
disable_initiator_tag: - '' -
255
checker_callback_tag: - '' -
256
checker_command: string; External command which is run to check if
257
client lives. %() expansions are done at
414
258
runtime with vars(self) as dict, so that for
415
259
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
260
current_checker_command: string; current running checker_command
421
disable_initiator_tag: a gobject event source tag, or None
422
enabled: bool()
423
fingerprint: string (40 or 32 hexadecimal digits); used to
424
uniquely identify the client
425
host: string; available for use by the checker command
426
interval: datetime.timedelta(); How often to start a new checker
427
last_approval_request: datetime.datetime(); (UTC) or None
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
436
timeout: datetime.timedelta(); How long from last_checked_ok
437
until this client is disabled
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
442
261
"""
443
262
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
}
263
@staticmethod
264
def _timedelta_to_milliseconds(td):
265
"Convert a datetime.timedelta() to milliseconds"
266
return ((td.days * 24 * 60 * 60 * 1000)
267
+ (td.seconds * 1000)
268
+ (td.microseconds // 1000))
459
269
460
270
def timeout_milliseconds(self):
461
271
"Return the 'timeout' attribute in milliseconds"
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)
272
return self._timedelta_to_milliseconds(self.timeout)
467
273
468
274
def interval_milliseconds(self):
469
275
"Return the 'interval' attribute in milliseconds"
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):
276
return self._timedelta_to_milliseconds(self.interval)
277
278
def __init__(self, name = None, disable_hook=None, config=None):
279
"""Note: the 'checker' key in 'config' sets the
280
'checker_command' attribute and *not* the 'checker'
281
attribute."""
523
282
self.name = 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)
283
if config is None:
284
config = {}
285
logger.debug(u"Creating client %r", self.name)
539
286
# Uppercase and remove spaces from fingerprint for later
540
287
# comparison purposes with return value from the fingerprint()
541
288
# function
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
289
self.fingerprint = (config[u"fingerprint"].upper()
290
.replace(u" ", u""))
291
logger.debug(u" Fingerprint: %s", self.fingerprint)
292
if u"secret" in config:
293
self.secret = config[u"secret"].decode(u"base64")
294
elif u"secfile" in config:
295
with open(os.path.expanduser(os.path.expandvars
296
(config[u"secfile"])),
297
"rb") as secfile:
298
self.secret = secfile.read()
299
else:
300
raise TypeError(u"No secret or secfile for client %s"
301
% self.name)
302
self.host = config.get(u"host", u"")
303
self.created = datetime.datetime.utcnow()
304
self.enabled = False
305
self.last_enabled = None
306
self.last_checked_ok = None
307
self.timeout = string_to_delta(config[u"timeout"])
308
self.interval = string_to_delta(config[u"interval"])
309
self.disable_hook = disable_hook
547
310
self.checker = None
548
311
self.checker_initiator_tag = None
549
312
self.disable_initiator_tag = None
550
313
self.checker_callback_tag = None
314
self.checker_command = config[u"checker"]
551
315
self.current_checker_command = None
552
self.approved = None
553
self.approvals_pending = 0
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)
568
569
# Send notice to process children that client state has changed
570
def send_changedstate(self):
571
with self.changedstate:
572
self.changedstate.notify_all()
316
self.last_connect = None
573
317
574
318
def enable(self):
575
319
"""Start this client's checker and timeout hooks"""
576
if getattr(self, "enabled", False):
320
if getattr(self, u"enabled", False):
577
321
# Already enabled
578
322
return
579
self.expires = datetime.datetime.utcnow() + self.timeout
580
self.enabled = True
581
323
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):
609
324
# Schedule a new checker to be started an 'interval' from now,
610
325
# and every interval from then on.
611
if self.checker_initiator_tag is not None:
612
gobject.source_remove(self.checker_initiator_tag)
613
326
self.checker_initiator_tag = (gobject.timeout_add
614
327
(self.interval_milliseconds(),
615
328
self.start_checker))
616
329
# Schedule a disable() when 'timeout' has passed
617
if self.disable_initiator_tag is not None:
618
gobject.source_remove(self.disable_initiator_tag)
619
330
self.disable_initiator_tag = (gobject.timeout_add
620
331
(self.timeout_milliseconds(),
621
332
self.disable))
333
self.enabled = True
622
334
# Also start a new checker *right now*.
623
335
self.start_checker()
624
336
337
def disable(self, quiet=True):
338
"""Disable this client."""
339
if not getattr(self, "enabled", False):
340
return False
341
if not quiet:
342
logger.info(u"Disabling client %s", self.name)
343
if getattr(self, u"disable_initiator_tag", False):
344
gobject.source_remove(self.disable_initiator_tag)
345
self.disable_initiator_tag = None
346
if getattr(self, u"checker_initiator_tag", False):
347
gobject.source_remove(self.checker_initiator_tag)
348
self.checker_initiator_tag = None
349
self.stop_checker()
350
if self.disable_hook:
351
self.disable_hook(self)
352
self.enabled = False
353
# Do not run this again if called by a gobject.timeout_add
354
return False
355
356
def __del__(self):
357
self.disable_hook = None
358
self.disable()
359
625
360
def checker_callback(self, pid, condition, command):
626
361
"""The checker has completed, so take appropriate actions."""
627
362
self.checker_callback_tag = None
628
363
self.checker = None
629
364
if os.WIFEXITED(condition):
630
self.last_checker_status = os.WEXITSTATUS(condition)
631
if self.last_checker_status == 0:
632
logger.info("Checker for %(name)s succeeded",
365
exitstatus = os.WEXITSTATUS(condition)
366
if exitstatus == 0:
367
logger.info(u"Checker for %(name)s succeeded",
633
368
vars(self))
634
369
self.checked_ok()
635
370
else:
636
logger.info("Checker for %(name)s failed",
371
logger.info(u"Checker for %(name)s failed",
637
372
vars(self))
638
373
else:
639
self.last_checker_status = -1
640
logger.warning("Checker for %(name)s crashed?",
374
logger.warning(u"Checker for %(name)s crashed?",
641
375
vars(self))
642
376
643
377
def checked_ok(self):
644
"""Assert that the client has been seen, alive and well."""
378
"""Bump up the timeout for this client.
379
380
This should only be called when the client has been seen,
381
alive and well.
382
"""
645
383
self.last_checked_ok = datetime.datetime.utcnow()
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()
384
gobject.source_remove(self.disable_initiator_tag)
385
self.disable_initiator_tag = (gobject.timeout_add
386
(self.timeout_milliseconds(),
387
self.disable))
664
388
665
389
def start_checker(self):
666
390
"""Start a new checker subprocess if one is not running.
668
392
If a checker already exists, leave it running and do
669
393
nothing."""
670
394
# The reason for not killing a running checker is that if we
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
395
# did that, then if a checker (for some reason) started
396
# running slowly and taking more than 'interval' time, the
397
# client would inevitably timeout, since no checker would get
398
# a chance to run to completion. If we instead leave running
675
399
# checkers alone, the checker would have to take more time
676
400
# than 'timeout' for the client to be disabled, which is as it
677
401
# should be.
679
403
# If a checker exists, make sure it is not a zombie
680
404
try:
681
405
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
682
except (AttributeError, OSError) as error:
406
except (AttributeError, OSError), error:
683
407
if (isinstance(error, OSError)
684
408
and error.errno != errno.ECHILD):
685
409
raise error
686
410
else:
687
411
if pid:
688
logger.warning("Checker was a zombie")
412
logger.warning(u"Checker was a zombie")
689
413
gobject.source_remove(self.checker_callback_tag)
690
414
self.checker_callback(pid, status,
691
415
self.current_checker_command)
692
416
# Start a new checker if needed
693
417
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)
699
418
try:
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
419
# In case checker_command has exactly one % operator
420
command = self.checker_command % self.host
421
except TypeError:
422
# Escape attributes for the shell
423
escaped_attrs = dict((key,
424
re.escape(unicode(str(val),
425
errors=
426
u'replace')))
427
for key, val in
428
vars(self).iteritems())
429
try:
430
command = self.checker_command % escaped_attrs
431
except TypeError, error:
432
logger.error(u'Could not format string "%s":'
433
u' %s', self.checker_command, error)
434
return True # Try again later
705
435
self.current_checker_command = command
706
436
try:
707
logger.info("Starting checker %r for %s",
437
logger.info(u"Starting checker %r for %s",
708
438
command, self.name)
709
439
# We don't need to redirect stdout and stderr, since
710
440
# in normal mode, that is already done by daemon(),
712
442
# always replaced by /dev/null.)
713
443
self.checker = subprocess.Popen(command,
714
444
close_fds=True,
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)
445
shell=True, cwd=u"/")
446
self.checker_callback_tag = (gobject.child_watch_add
447
(self.checker.pid,
448
self.checker_callback,
449
data=command))
450
# The checker may have completed before the gobject
451
# watch was added. Check for this.
452
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
453
if pid:
454
gobject.source_remove(self.checker_callback_tag)
455
self.checker_callback(pid, status, command)
456
except OSError, error:
457
logger.error(u"Failed to start subprocess: %s",
458
error)
729
459
# Re-run this periodically if run by gobject.timeout_add
730
460
return True
731
461
734
464
if self.checker_callback_tag:
735
465
gobject.source_remove(self.checker_callback_tag)
736
466
self.checker_callback_tag = None
737
if getattr(self, "checker", None) is None:
467
if getattr(self, u"checker", None) is None:
738
468
return
739
logger.debug("Stopping checker for %(name)s", vars(self))
469
logger.debug(u"Stopping checker for %(name)s", vars(self))
740
470
try:
741
self.checker.terminate()
471
os.kill(self.checker.pid, signal.SIGTERM)
742
472
#time.sleep(0.5)
743
473
#if self.checker.poll() is None:
744
# self.checker.kill()
745
except OSError as error:
474
# os.kill(self.checker.pid, signal.SIGKILL)
475
except OSError, error:
746
476
if error.errno != errno.ESRCH: # No such process
747
477
raise
748
478
self.checker = None
749
479
750
480
751
def dbus_service_property(dbus_interface, signature="v",
752
access="readwrite", byte_arrays=False):
481
def dbus_service_property(dbus_interface, signature=u"v",
482
access=u"readwrite", byte_arrays=False):
753
483
"""Decorators for marking methods of a DBusObjectWithProperties to
754
484
become properties on the D-Bus.
755
485
762
492
"""
763
493
# Encoding deeply encoded byte arrays is not supported yet by the
764
494
# "Set" method, so we fail early here:
765
if byte_arrays and signature != "ay":
766
raise ValueError("Byte arrays not supported for non-'ay'"
767
" signature {0!r}".format(signature))
495
if byte_arrays and signature != u"ay":
496
raise ValueError(u"Byte arrays not supported for non-'ay'"
497
u" signature %r" % signature)
768
498
def decorator(func):
769
499
func._dbus_is_property = True
770
500
func._dbus_interface = dbus_interface
771
501
func._dbus_signature = signature
772
502
func._dbus_access = access
773
503
func._dbus_name = func.__name__
774
if func._dbus_name.endswith("_dbus_property"):
504
if func._dbus_name.endswith(u"_dbus_property"):
775
505
func._dbus_name = func._dbus_name[:-14]
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
506
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
814
507
return func
815
508
return decorator
816
509
836
529
837
530
class DBusObjectWithProperties(dbus.service.Object):
838
531
"""A D-Bus object with properties.
839
532
840
533
Classes inheriting from this can use the dbus_service_property
841
534
decorator to expose methods as D-Bus properties. It exposes the
842
535
standard Get(), Set(), and GetAll() methods on the D-Bus.
843
536
"""
844
537
845
538
@staticmethod
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)
539
def _is_dbus_property(obj):
540
return getattr(obj, u"_dbus_is_property", False)
854
541
855
def _get_all_dbus_things(self, thing):
542
def _get_all_dbus_properties(self):
856
543
"""Returns a generator of (name, attribute) pairs
857
544
"""
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)))
545
return ((prop._dbus_name, prop)
546
for name, prop in
547
inspect.getmembers(self, self._is_dbus_property))
865
548
866
549
def _get_dbus_property(self, interface_name, property_name):
867
550
"""Returns a bound method if one exists which is a D-Bus
868
551
property with the specified name and interface.
869
552
"""
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
553
for name in (property_name,
554
property_name + u"_dbus_property"):
555
prop = getattr(self, name, None)
556
if (prop is None
557
or not self._is_dbus_property(prop)
558
or prop._dbus_name != property_name
559
or (interface_name and prop._dbus_interface
560
and interface_name != prop._dbus_interface)):
561
continue
562
return prop
878
563
# No such property
879
raise DBusPropertyNotFound(self.dbus_object_path + ":"
880
+ interface_name + "."
564
raise DBusPropertyNotFound(self.dbus_object_path + u":"
565
+ interface_name + u"."
881
566
+ property_name)
882
567
883
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
884
out_signature="v")
568
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
569
out_signature=u"v")
885
570
def Get(self, interface_name, property_name):
886
571
"""Standard D-Bus property Get() method, see D-Bus standard.
887
572
"""
888
573
prop = self._get_dbus_property(interface_name, property_name)
889
if prop._dbus_access == "write":
574
if prop._dbus_access == u"write":
890
575
raise DBusPropertyAccessException(property_name)
891
576
value = prop()
892
if not hasattr(value, "variant_level"):
577
if not hasattr(value, u"variant_level"):
893
578
return value
894
579
return type(value)(value, variant_level=value.variant_level+1)
895
580
896
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
581
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
897
582
def Set(self, interface_name, property_name, value):
898
583
"""Standard D-Bus property Set() method, see D-Bus standard.
899
584
"""
900
585
prop = self._get_dbus_property(interface_name, property_name)
901
if prop._dbus_access == "read":
586
if prop._dbus_access == u"read":
902
587
raise DBusPropertyAccessException(property_name)
903
if prop._dbus_get_args_options["byte_arrays"]:
588
if prop._dbus_get_args_options[u"byte_arrays"]:
904
589
# The byte_arrays option is not supported yet on
905
590
# signatures other than "ay".
906
if prop._dbus_signature != "ay":
591
if prop._dbus_signature != u"ay":
907
592
raise ValueError
908
value = dbus.ByteArray(b''.join(chr(byte)
909
for byte in value))
593
value = dbus.ByteArray(''.join(unichr(byte)
594
for byte in value))
910
595
prop(value)
911
596
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
913
out_signature="a{sv}")
597
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
598
out_signature=u"a{sv}")
914
599
def GetAll(self, interface_name):
915
600
"""Standard D-Bus property GetAll() method, see D-Bus
916
601
standard.
917
602
918
603
Note: Will not include properties with access="write".
919
604
"""
920
properties = {}
921
for name, prop in self._get_all_dbus_things("property"):
605
all = {}
606
for name, prop in self._get_all_dbus_properties():
922
607
if (interface_name
923
608
and interface_name != prop._dbus_interface):
924
609
# Interface non-empty but did not match
925
610
continue
926
611
# Ignore write-only properties
927
if prop._dbus_access == "write":
612
if prop._dbus_access == u"write":
928
613
continue
929
614
value = prop()
930
if not hasattr(value, "variant_level"):
931
properties[name] = value
615
if not hasattr(value, u"variant_level"):
616
all[name] = value
932
617
continue
933
properties[name] = type(value)(value, variant_level=
934
value.variant_level+1)
935
return dbus.Dictionary(properties, signature="sv")
618
all[name] = type(value)(value, variant_level=
619
value.variant_level+1)
620
return dbus.Dictionary(all, signature=u"sv")
936
621
937
622
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
938
out_signature="s",
623
out_signature=u"s",
939
624
path_keyword='object_path',
940
625
connection_keyword='connection')
941
626
def Introspect(self, object_path, connection):
942
"""Overloading of standard D-Bus method.
943
944
Inserts property tags and interface annotation tags.
627
"""Standard D-Bus method, overloaded to insert property tags.
945
628
"""
946
629
xmlstring = dbus.service.Object.Introspect(self, object_path,
947
630
connection)
948
631
try:
949
632
document = xml.dom.minidom.parseString(xmlstring)
950
633
def make_tag(document, name, prop):
951
e = document.createElement("property")
952
e.setAttribute("name", name)
953
e.setAttribute("type", prop._dbus_signature)
954
e.setAttribute("access", prop._dbus_access)
634
e = document.createElement(u"property")
635
e.setAttribute(u"name", name)
636
e.setAttribute(u"type", prop._dbus_signature)
637
e.setAttribute(u"access", prop._dbus_access)
955
638
return e
956
for if_tag in document.getElementsByTagName("interface"):
957
# Add property tags
639
for if_tag in document.getElementsByTagName(u"interface"):
958
640
for tag in (make_tag(document, name, prop)
959
641
for name, prop
960
in self._get_all_dbus_things("property")
642
in self._get_all_dbus_properties()
961
643
if prop._dbus_interface
962
== if_tag.getAttribute("name")):
644
== if_tag.getAttribute(u"name")):
963
645
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)
995
646
# Add the names to the return values for the
996
647
# "org.freedesktop.DBus.Properties" methods
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")
648
if (if_tag.getAttribute(u"name")
649
== u"org.freedesktop.DBus.Properties"):
650
for cn in if_tag.getElementsByTagName(u"method"):
651
if cn.getAttribute(u"name") == u"Get":
652
for arg in cn.getElementsByTagName(u"arg"):
653
if (arg.getAttribute(u"direction")
654
== u"out"):
655
arg.setAttribute(u"name", u"value")
656
elif cn.getAttribute(u"name") == u"GetAll":
657
for arg in cn.getElementsByTagName(u"arg"):
658
if (arg.getAttribute(u"direction")
659
== u"out"):
660
arg.setAttribute(u"name", u"props")
661
xmlstring = document.toxml(u"utf-8")
1011
662
document.unlink()
1012
663
except (AttributeError, xml.dom.DOMException,
1013
xml.parsers.expat.ExpatError) as error:
1014
logger.error("Failed to override Introspection method",
1015
exc_info=error)
664
xml.parsers.expat.ExpatError), error:
665
logger.error(u"Failed to override Introspection method",
666
error)
1016
667
return xmlstring
1017
668
1018
669
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"})
1198
670
class ClientDBus(Client, DBusObjectWithProperties):
1199
671
"""A Client class using D-Bus
1200
672
1202
674
dbus_object_path: dbus.ObjectPath
1203
675
bus: dbus.SystemBus()
1204
676
"""
1205
1206
runtime_expansions = (Client.runtime_expansions
1207
+ ("dbus_object_path",))
1208
1209
677
# dbus.service.Object doesn't use super(), so we can't either.
1210
678
1211
679
def __init__(self, bus = None, *args, **kwargs):
1213
681
Client.__init__(self, *args, **kwargs)
1214
682
# Only now, when this client is initialized, can it show up on
1215
683
# the D-Bus
1216
client_object_name = unicode(self.name).translate(
1217
{ord("."): ord("_"),
1218
ord("-"): ord("_")})
1219
684
self.dbus_object_path = (dbus.ObjectPath
1220
("/clients/" + client_object_name))
685
(u"/clients/"
686
+ self.name.replace(u".", u"_")))
1221
687
DBusObjectWithProperties.__init__(self, self.bus,
1222
688
self.dbus_object_path)
1223
689
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
690
@staticmethod
691
def _datetime_to_dbus(dt, variant_level=0):
692
"""Convert a UTC datetime.datetime() to a D-Bus type."""
693
return dbus.String(dt.isoformat(),
694
variant_level=variant_level)
695
696
def enable(self):
697
oldstate = getattr(self, u"enabled", False)
698
r = Client.enable(self)
699
if oldstate != self.enabled:
700
# Emit D-Bus signals
701
self.PropertyChanged(dbus.String(u"enabled"),
702
dbus.Boolean(True, variant_level=1))
703
self.PropertyChanged(
704
dbus.String(u"last_enabled"),
705
self._datetime_to_dbus(self.last_enabled,
706
variant_level=1))
707
return r
708
709
def disable(self, quiet = False):
710
oldstate = getattr(self, u"enabled", False)
711
r = Client.disable(self, quiet=quiet)
712
if not quiet and oldstate != self.enabled:
713
# Emit D-Bus signal
714
self.PropertyChanged(dbus.String(u"enabled"),
715
dbus.Boolean(False, variant_level=1))
716
return r
1291
717
1292
718
def __del__(self, *args, **kwargs):
1293
719
try:
1294
720
self.remove_from_connection()
1295
721
except LookupError:
1296
722
pass
1297
if hasattr(DBusObjectWithProperties, "__del__"):
723
if hasattr(DBusObjectWithProperties, u"__del__"):
1298
724
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1299
725
Client.__del__(self, *args, **kwargs)
1300
726
1302
728
*args, **kwargs):
1303
729
self.checker_callback_tag = None
1304
730
self.checker = None
731
# Emit D-Bus signal
732
self.PropertyChanged(dbus.String(u"checker_running"),
733
dbus.Boolean(False, variant_level=1))
1305
734
if os.WIFEXITED(condition):
1306
735
exitstatus = os.WEXITSTATUS(condition)
1307
736
# Emit D-Bus signal
1317
746
return Client.checker_callback(self, pid, condition, command,
1318
747
*args, **kwargs)
1319
748
749
def checked_ok(self, *args, **kwargs):
750
r = Client.checked_ok(self, *args, **kwargs)
751
# Emit D-Bus signal
752
self.PropertyChanged(
753
dbus.String(u"last_checked_ok"),
754
(self._datetime_to_dbus(self.last_checked_ok,
755
variant_level=1)))
756
return r
757
1320
758
def start_checker(self, *args, **kwargs):
1321
759
old_checker = self.checker
1322
760
if self.checker is not None:
1329
767
and old_checker_pid != self.checker.pid):
1330
768
# Emit D-Bus signal
1331
769
self.CheckerStarted(self.current_checker_command)
1332
return r
1333
1334
def _reset_approved(self):
1335
self.approved = None
1336
return False
1337
1338
def approve(self, value=True):
1339
self.approved = value
1340
gobject.timeout_add(timedelta_to_milliseconds
1341
(self.approval_duration),
1342
self._reset_approved)
1343
self.send_changedstate()
770
self.PropertyChanged(
771
dbus.String(u"checker_running"),
772
dbus.Boolean(True, variant_level=1))
773
return r
774
775
def stop_checker(self, *args, **kwargs):
776
old_checker = getattr(self, u"checker", None)
777
r = Client.stop_checker(self, *args, **kwargs)
778
if (old_checker is not None
779
and getattr(self, u"checker", None) is None):
780
self.PropertyChanged(dbus.String(u"checker_running"),
781
dbus.Boolean(False, variant_level=1))
782
return r
1344
783
1345
784
## D-Bus methods, signals & properties
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"}
785
_interface = u"se.bsnet.fukt.Mandos.Client"
1354
786
1355
787
## Signals
1356
788
1357
789
# CheckerCompleted - signal
1358
@dbus.service.signal(_interface, signature="nxs")
790
@dbus.service.signal(_interface, signature=u"nxs")
1359
791
def CheckerCompleted(self, exitcode, waitstatus, command):
1360
792
"D-Bus signal"
1361
793
pass
1362
794
1363
795
# CheckerStarted - signal
1364
@dbus.service.signal(_interface, signature="s")
796
@dbus.service.signal(_interface, signature=u"s")
1365
797
def CheckerStarted(self, command):
1366
798
"D-Bus signal"
1367
799
pass
1368
800
1369
801
# PropertyChanged - signal
1370
@dbus.service.signal(_interface, signature="sv")
802
@dbus.service.signal(_interface, signature=u"sv")
1371
803
def PropertyChanged(self, property, value):
1372
804
"D-Bus signal"
1373
805
pass
1375
807
# GotSecret - signal
1376
808
@dbus.service.signal(_interface)
1377
809
def GotSecret(self):
1378
"""D-Bus signal
1379
Is sent after a successful transfer of secret from the Mandos
1380
server to mandos-client
1381
"""
810
"D-Bus signal"
1382
811
pass
1383
812
1384
813
# Rejected - signal
1385
@dbus.service.signal(_interface, signature="s")
1386
def Rejected(self, reason):
814
@dbus.service.signal(_interface)
815
def Rejected(self):
1387
816
"D-Bus signal"
1388
817
pass
1389
818
1390
# NeedApproval - signal
1391
@dbus.service.signal(_interface, signature="tb")
1392
def NeedApproval(self, timeout, default):
1393
"D-Bus signal"
1394
return self.need_approval()
1395
1396
819
## Methods
1397
820
1398
# Approve - method
1399
@dbus.service.method(_interface, in_signature="b")
1400
def Approve(self, value):
1401
self.approve(value)
1402
1403
821
# CheckedOK - method
1404
822
@dbus.service.method(_interface)
1405
823
def CheckedOK(self):
1406
self.checked_ok()
824
return self.checked_ok()
1407
825
1408
826
# Enable - method
1409
827
@dbus.service.method(_interface)
1430
848
1431
849
## Properties
1432
850
1433
# ApprovalPending - property
1434
@dbus_service_property(_interface, signature="b", access="read")
1435
def ApprovalPending_dbus_property(self):
1436
return dbus.Boolean(bool(self.approvals_pending))
1437
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):
851
# name - property
852
@dbus_service_property(_interface, signature=u"s", access=u"read")
853
def name_dbus_property(self):
1466
854
return dbus.String(self.name)
1467
855
1468
# Fingerprint - property
1469
@dbus_service_property(_interface, signature="s", access="read")
1470
def Fingerprint_dbus_property(self):
856
# fingerprint - property
857
@dbus_service_property(_interface, signature=u"s", access=u"read")
858
def fingerprint_dbus_property(self):
1471
859
return dbus.String(self.fingerprint)
1472
860
1473
# Host - property
1474
@dbus_service_property(_interface, signature="s",
1475
access="readwrite")
1476
def Host_dbus_property(self, value=None):
861
# host - property
862
@dbus_service_property(_interface, signature=u"s",
863
access=u"readwrite")
864
def host_dbus_property(self, value=None):
1477
865
if value is None: # get
1478
866
return dbus.String(self.host)
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):
867
self.host = value
868
# Emit D-Bus signal
869
self.PropertyChanged(dbus.String(u"host"),
870
dbus.String(value, variant_level=1))
871
872
# created - property
873
@dbus_service_property(_interface, signature=u"s", access=u"read")
874
def created_dbus_property(self):
875
return dbus.String(self._datetime_to_dbus(self.created))
876
877
# last_enabled - property
878
@dbus_service_property(_interface, signature=u"s", access=u"read")
879
def last_enabled_dbus_property(self):
880
if self.last_enabled is None:
881
return dbus.String(u"")
882
return dbus.String(self._datetime_to_dbus(self.last_enabled))
883
884
# enabled - property
885
@dbus_service_property(_interface, signature=u"b",
886
access=u"readwrite")
887
def enabled_dbus_property(self, value=None):
1495
888
if value is None: # get
1496
889
return dbus.Boolean(self.enabled)
1497
890
if value:
1499
892
else:
1500
893
self.disable()
1501
894
1502
# LastCheckedOK - property
1503
@dbus_service_property(_interface, signature="s",
1504
access="readwrite")
1505
def LastCheckedOK_dbus_property(self, value=None):
895
# last_checked_ok - property
896
@dbus_service_property(_interface, signature=u"s",
897
access=u"readwrite")
898
def last_checked_ok_dbus_property(self, value=None):
1506
899
if value is not None:
1507
900
self.checked_ok()
1508
901
return
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):
902
if self.last_checked_ok is None:
903
return dbus.String(u"")
904
return dbus.String(self._datetime_to_dbus(self
905
.last_checked_ok))
906
907
# timeout - property
908
@dbus_service_property(_interface, signature=u"t",
909
access=u"readwrite")
910
def timeout_dbus_property(self, value=None):
1531
911
if value is None: # get
1532
912
return dbus.UInt64(self.timeout_milliseconds())
1533
old_timeout = self.timeout
1534
913
self.timeout = datetime.timedelta(0, 0, 0, value)
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):
914
# Emit D-Bus signal
915
self.PropertyChanged(dbus.String(u"timeout"),
916
dbus.UInt64(value, variant_level=1))
917
if getattr(self, u"disable_initiator_tag", None) is None:
918
return
919
# Reschedule timeout
920
gobject.source_remove(self.disable_initiator_tag)
921
self.disable_initiator_tag = None
922
time_to_die = (self.
923
_timedelta_to_milliseconds((self
924
.last_checked_ok
925
+ self.timeout)
926
- datetime.datetime
927
.utcnow()))
928
if time_to_die <= 0:
929
# The timeout has passed
930
self.disable()
931
else:
932
self.disable_initiator_tag = (gobject.timeout_add
933
(time_to_die, self.disable))
934
935
# interval - property
936
@dbus_service_property(_interface, signature=u"t",
937
access=u"readwrite")
938
def interval_dbus_property(self, value=None):
1564
939
if value is None: # get
1565
940
return dbus.UInt64(self.interval_milliseconds())
1566
941
self.interval = datetime.timedelta(0, 0, 0, value)
1567
if getattr(self, "checker_initiator_tag", None) is None:
942
# Emit D-Bus signal
943
self.PropertyChanged(dbus.String(u"interval"),
944
dbus.UInt64(value, variant_level=1))
945
if getattr(self, u"checker_initiator_tag", None) is None:
1568
946
return
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):
947
# Reschedule checker run
948
gobject.source_remove(self.checker_initiator_tag)
949
self.checker_initiator_tag = (gobject.timeout_add
950
(value, self.start_checker))
951
self.start_checker() # Start one now, too
952
953
# checker - property
954
@dbus_service_property(_interface, signature=u"s",
955
access=u"readwrite")
956
def checker_dbus_property(self, value=None):
1580
957
if value is None: # get
1581
958
return dbus.String(self.checker_command)
1582
self.checker_command = unicode(value)
959
self.checker_command = value
960
# Emit D-Bus signal
961
self.PropertyChanged(dbus.String(u"checker"),
962
dbus.String(self.checker_command,
963
variant_level=1))
1583
964
1584
# CheckerRunning - property
1585
@dbus_service_property(_interface, signature="b",
1586
access="readwrite")
1587
def CheckerRunning_dbus_property(self, value=None):
965
# checker_running - property
966
@dbus_service_property(_interface, signature=u"b",
967
access=u"readwrite")
968
def checker_running_dbus_property(self, value=None):
1588
969
if value is None: # get
1589
970
return dbus.Boolean(self.checker is not None)
1590
971
if value:
1592
973
else:
1593
974
self.stop_checker()
1594
975
1595
# ObjectPath - property
1596
@dbus_service_property(_interface, signature="o", access="read")
1597
def ObjectPath_dbus_property(self):
976
# object_path - property
977
@dbus_service_property(_interface, signature=u"o", access=u"read")
978
def object_path_dbus_property(self):
1598
979
return self.dbus_object_path # is already a dbus.ObjectPath
1599
980
1600
# Secret = property
1601
@dbus_service_property(_interface, signature="ay",
1602
access="write", byte_arrays=True)
1603
def Secret_dbus_property(self, value):
981
# secret = property
982
@dbus_service_property(_interface, signature=u"ay",
983
access=u"write", byte_arrays=True)
984
def secret_dbus_property(self, value):
1604
985
self.secret = str(value)
1605
986
1606
987
del _interface
1607
988
1608
989
1609
class ProxyClient(object):
1610
def __init__(self, child_pipe, fpr, address):
1611
self._pipe = child_pipe
1612
self._pipe.send(('init', fpr, address))
1613
if not self._pipe.recv():
1614
raise KeyError()
1615
1616
def __getattribute__(self, name):
1617
if name == '_pipe':
1618
return super(ProxyClient, self).__getattribute__(name)
1619
self._pipe.send(('getattr', name))
1620
data = self._pipe.recv()
1621
if data[0] == 'data':
1622
return data[1]
1623
if data[0] == 'function':
1624
def func(*args, **kwargs):
1625
self._pipe.send(('funcall', name, args, kwargs))
1626
return self._pipe.recv()[1]
1627
return func
1628
1629
def __setattr__(self, name, value):
1630
if name == '_pipe':
1631
return super(ProxyClient, self).__setattr__(name, value)
1632
self._pipe.send(('setattr', name, value))
1633
1634
1635
990
class ClientHandler(socketserver.BaseRequestHandler, object):
1636
991
"""A class to handle client connections.
1637
992
1639
994
Note: This will run in its own forked process."""
1640
995
1641
996
def handle(self):
1642
with contextlib.closing(self.server.child_pipe) as child_pipe:
1643
logger.info("TCP connection from: %s",
1644
unicode(self.client_address))
1645
logger.debug("Pipe FD: %d",
1646
self.server.child_pipe.fileno())
1647
997
logger.info(u"TCP connection from: %s",
998
unicode(self.client_address))
999
logger.debug(u"IPC Pipe FD: %d",
1000
self.server.child_pipe[1].fileno())
1001
# Open IPC pipe to parent process
1002
with contextlib.nested(self.server.child_pipe[1],
1003
self.server.parent_pipe[0]
1004
) as (ipc, ipc_return):
1648
1005
session = (gnutls.connection
1649
1006
.ClientSession(self.request,
1650
1007
gnutls.connection
1655
1012
# no X.509 keys are added to it. Therefore, we can use it
1656
1013
# here despite using OpenPGP certificates.
1657
1014
1658
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1659
# "+AES-256-CBC", "+SHA1",
1660
# "+COMP-NULL", "+CTYPE-OPENPGP",
1661
# "+DHE-DSS"))
1015
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1016
# u"+AES-256-CBC", u"+SHA1",
1017
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1018
# u"+DHE-DSS"))
1662
1019
# Use a fallback default, since this MUST be set.
1663
1020
priority = self.server.gnutls_priority
1664
1021
if priority is None:
1665
priority = "NORMAL"
1022
priority = u"NORMAL"
1666
1023
(gnutls.library.functions
1667
1024
.gnutls_priority_set_direct(session._c_object,
1668
1025
priority, None))
1670
1027
# Start communication using the Mandos protocol
1671
1028
# Get protocol number
1672
1029
line = self.request.makefile().readline()
1673
logger.debug("Protocol version: %r", line)
1030
logger.debug(u"Protocol version: %r", line)
1674
1031
try:
1675
1032
if int(line.strip().split()[0]) > 1:
1676
1033
raise RuntimeError
1677
except (ValueError, IndexError, RuntimeError) as error:
1678
logger.error("Unknown protocol version: %s", error)
1034
except (ValueError, IndexError, RuntimeError), error:
1035
logger.error(u"Unknown protocol version: %s", error)
1679
1036
return
1680
1037
1681
1038
# Start GnuTLS connection
1682
1039
try:
1683
1040
session.handshake()
1684
except gnutls.errors.GNUTLSError as error:
1685
logger.warning("Handshake failed: %s", error)
1041
except gnutls.errors.GNUTLSError, error:
1042
logger.warning(u"Handshake failed: %s", error)
1686
1043
# Do not run session.bye() here: the session is not
1687
1044
# established. Just abandon the request.
1688
1045
return
1689
logger.debug("Handshake succeeded")
1690
1691
approval_required = False
1046
logger.debug(u"Handshake succeeded")
1692
1047
try:
1693
1048
try:
1694
1049
fpr = self.fingerprint(self.peer_certificate
1695
1050
(session))
1696
except (TypeError,
1697
gnutls.errors.GNUTLSError) as error:
1698
logger.warning("Bad certificate: %s", error)
1699
return
1700
logger.debug("Fingerprint: %s", fpr)
1701
1702
try:
1703
client = ProxyClient(child_pipe, fpr,
1704
self.client_address)
1705
except KeyError:
1706
return
1707
1708
if client.approval_delay:
1709
delay = client.approval_delay
1710
client.approvals_pending += 1
1711
approval_required = True
1712
1713
while True:
1714
if not client.enabled:
1715
logger.info("Client %s is disabled",
1716
client.name)
1717
if self.server.use_dbus:
1718
# Emit D-Bus signal
1719
client.Rejected("Disabled")
1720
return
1721
1722
if client.approved or not client.approval_delay:
1723
#We are approved or approval is disabled
1051
except (TypeError, gnutls.errors.GNUTLSError), error:
1052
logger.warning(u"Bad certificate: %s", error)
1053
return
1054
logger.debug(u"Fingerprint: %s", fpr)
1055
1056
for c in self.server.clients:
1057
if c.fingerprint == fpr:
1058
client = c
1724
1059
break
1725
elif client.approved is None:
1726
logger.info("Client %s needs approval",
1727
client.name)
1728
if self.server.use_dbus:
1729
# Emit D-Bus signal
1730
client.NeedApproval(
1731
client.approval_delay_milliseconds(),
1732
client.approved_by_default)
1733
else:
1734
logger.warning("Client %s was not approved",
1735
client.name)
1736
if self.server.use_dbus:
1737
# Emit D-Bus signal
1738
client.Rejected("Denied")
1739
return
1740
1741
#wait until timeout or approved
1742
time = datetime.datetime.now()
1743
client.changedstate.acquire()
1744
client.changedstate.wait(
1745
float(timedelta_to_milliseconds(delay)
1746
/ 1000))
1747
client.changedstate.release()
1748
time2 = datetime.datetime.now()
1749
if (time2 - time) >= delay:
1750
if not client.approved_by_default:
1751
logger.warning("Client %s timed out while"
1752
" waiting for approval",
1753
client.name)
1754
if self.server.use_dbus:
1755
# Emit D-Bus signal
1756
client.Rejected("Approval timed out")
1757
return
1758
else:
1759
break
1760
else:
1761
delay -= time2 - time
1762
1060
else:
1061
ipc.write(u"NOTFOUND %s %s\n"
1062
% (fpr, unicode(self.client_address)))
1063
return
1064
1065
class ClientProxy(object):
1066
"""Client proxy object. Not for calling methods."""
1067
def __init__(self, client):
1068
self.client = client
1069
def __getattr__(self, name):
1070
if name.startswith("ipc_"):
1071
def tempfunc():
1072
ipc.write("%s %s\n" % (name[4:].upper(),
1073
self.client.name))
1074
return tempfunc
1075
if not hasattr(self.client, name):
1076
raise AttributeError
1077
ipc.write(u"GETATTR %s %s\n"
1078
% (name, self.client.fingerprint))
1079
return pickle.load(ipc_return)
1080
clientproxy = ClientProxy(client)
1081
# Have to check if client.enabled, since it is
1082
# possible that the client was disabled since the
1083
# GnuTLS session was established.
1084
if not clientproxy.enabled:
1085
clientproxy.ipc_disabled()
1086
return
1087
1088
clientproxy.ipc_sending()
1763
1089
sent_size = 0
1764
1090
while sent_size < len(client.secret):
1765
try:
1766
sent = session.send(client.secret[sent_size:])
1767
except gnutls.errors.GNUTLSError as error:
1768
logger.warning("gnutls send failed",
1769
exc_info=error)
1770
return
1771
logger.debug("Sent: %d, remaining: %d",
1091
sent = session.send(client.secret[sent_size:])
1092
logger.debug(u"Sent: %d, remaining: %d",
1772
1093
sent, len(client.secret)
1773
1094
- (sent_size + sent))
1774
1095
sent_size += sent
1775
1776
logger.info("Sending secret to %s", client.name)
1777
# bump the timeout using extended_timeout
1778
client.bump_timeout(client.extended_timeout)
1779
if self.server.use_dbus:
1780
# Emit D-Bus signal
1781
client.GotSecret()
1782
1783
1096
finally:
1784
if approval_required:
1785
client.approvals_pending -= 1
1786
try:
1787
session.bye()
1788
except gnutls.errors.GNUTLSError as error:
1789
logger.warning("GnuTLS bye failed",
1790
exc_info=error)
1097
session.bye()
1791
1098
1792
1099
@staticmethod
1793
1100
def peer_certificate(session):
1803
1110
.gnutls_certificate_get_peers
1804
1111
(session._c_object, ctypes.byref(list_size)))
1805
1112
if not bool(cert_list) and list_size.value != 0:
1806
raise gnutls.errors.GNUTLSError("error getting peer"
1807
" certificate")
1113
raise gnutls.errors.GNUTLSError(u"error getting peer"
1114
u" certificate")
1808
1115
if list_size.value == 0:
1809
1116
return None
1810
1117
cert = cert_list[0]
1836
1143
if crtverify.value != 0:
1837
1144
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1838
1145
raise (gnutls.errors.CertificateSecurityError
1839
("Verify failed"))
1146
(u"Verify failed"))
1840
1147
# New buffer for the fingerprint
1841
1148
buf = ctypes.create_string_buffer(20)
1842
1149
buf_len = ctypes.c_size_t()
1849
1156
# Convert the buffer to a Python bytestring
1850
1157
fpr = ctypes.string_at(buf, buf_len.value)
1851
1158
# Convert the bytestring to hexadecimal notation
1852
hex_fpr = binascii.hexlify(fpr).upper()
1159
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1853
1160
return hex_fpr
1854
1161
1855
1162
1856
class MultiprocessingMixIn(object):
1857
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1858
def sub_process_main(self, request, address):
1859
try:
1860
self.finish_request(request, address)
1861
except Exception:
1862
self.handle_error(request, address)
1863
self.close_request(request)
1864
1865
def process_request(self, request, address):
1866
"""Start a new process to process the request."""
1867
proc = multiprocessing.Process(target = self.sub_process_main,
1868
args = (request, address))
1869
proc.start()
1870
return proc
1871
1872
1873
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1874
""" adds a pipe to the MixIn """
1163
class ForkingMixInWithPipes(socketserver.ForkingMixIn, object):
1164
"""Like socketserver.ForkingMixIn, but also pass a pipe pair."""
1875
1165
def process_request(self, request, client_address):
1876
1166
"""Overrides and wraps the original process_request().
1877
1167
1878
1168
This function creates a new pipe in self.pipe
1879
1169
"""
1880
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1881
1882
proc = MultiprocessingMixIn.process_request(self, request,
1883
client_address)
1884
self.child_pipe.close()
1885
self.add_pipe(parent_pipe, proc)
1886
1887
def add_pipe(self, parent_pipe, proc):
1170
# Child writes to child_pipe
1171
self.child_pipe = map(os.fdopen, os.pipe(), u"rw", (1, 0))
1172
# Parent writes to parent_pipe
1173
self.parent_pipe = map(os.fdopen, os.pipe(), u"rw", (1, 0))
1174
super(ForkingMixInWithPipes,
1175
self).process_request(request, client_address)
1176
# Close unused ends for parent
1177
self.parent_pipe[0].close() # close read end
1178
self.child_pipe[1].close() # close write end
1179
self.add_pipe_fds(self.child_pipe[0], self.parent_pipe[1])
1180
def add_pipe_fds(self, child_pipe_fd, parent_pipe_fd):
1888
1181
"""Dummy function; override as necessary"""
1889
raise NotImplementedError
1890
1891
1892
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1182
child_pipe_fd.close()
1183
parent_pipe_fd.close()
1184
1185
1186
class IPv6_TCPServer(ForkingMixInWithPipes,
1893
1187
socketserver.TCPServer, object):
1894
1188
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1895
1189
1899
1193
use_ipv6: Boolean; to use IPv6 or not
1900
1194
"""
1901
1195
def __init__(self, server_address, RequestHandlerClass,
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
"""
1196
interface=None, use_ipv6=True):
1906
1197
self.interface = interface
1907
1198
if use_ipv6:
1908
1199
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.
1935
1200
socketserver.TCPServer.__init__(self, server_address,
1936
1201
RequestHandlerClass)
1937
1938
1202
def server_bind(self):
1939
1203
"""This overrides the normal server_bind() function
1940
1204
to bind to an interface if one was specified, and also NOT to
1941
1205
bind to an address or port if they were not specified."""
1942
1206
if self.interface is not None:
1943
1207
if SO_BINDTODEVICE is None:
1944
logger.error("SO_BINDTODEVICE does not exist;"
1945
" cannot bind to interface %s",
1208
logger.error(u"SO_BINDTODEVICE does not exist;"
1209
u" cannot bind to interface %s",
1946
1210
self.interface)
1947
1211
else:
1948
1212
try:
1949
1213
self.socket.setsockopt(socket.SOL_SOCKET,
1950
1214
SO_BINDTODEVICE,
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)
1215
str(self.interface
1216
+ u'\0'))
1217
except socket.error, error:
1218
if error[0] == errno.EPERM:
1219
logger.error(u"No permission to"
1220
u" bind to interface %s",
1221
self.interface)
1222
elif error[0] == errno.ENOPROTOOPT:
1223
logger.error(u"SO_BINDTODEVICE not available;"
1224
u" cannot bind to interface %s",
1225
self.interface)
1963
1226
else:
1964
1227
raise
1965
1228
# Only bind(2) the socket if we really need to.
1966
1229
if self.server_address[0] or self.server_address[1]:
1967
1230
if not self.server_address[0]:
1968
1231
if self.address_family == socket.AF_INET6:
1969
any_address = "::" # in6addr_any
1232
any_address = u"::" # in6addr_any
1970
1233
else:
1971
1234
any_address = socket.INADDR_ANY
1972
1235
self.server_address = (any_address,
1995
1258
"""
1996
1259
def __init__(self, server_address, RequestHandlerClass,
1997
1260
interface=None, use_ipv6=True, clients=None,
1998
gnutls_priority=None, use_dbus=True, socketfd=None):
1261
gnutls_priority=None, use_dbus=True):
1999
1262
self.enabled = False
2000
1263
self.clients = clients
2001
1264
if self.clients is None:
2002
self.clients = {}
1265
self.clients = set()
2003
1266
self.use_dbus = use_dbus
2004
1267
self.gnutls_priority = gnutls_priority
2005
1268
IPv6_TCPServer.__init__(self, server_address,
2006
1269
RequestHandlerClass,
2007
1270
interface = interface,
2008
use_ipv6 = use_ipv6,
2009
socketfd = socketfd)
1271
use_ipv6 = use_ipv6)
2010
1272
def server_activate(self):
2011
1273
if self.enabled:
2012
1274
return socketserver.TCPServer.server_activate(self)
2013
2014
1275
def enable(self):
2015
1276
self.enabled = True
2016
2017
def add_pipe(self, parent_pipe, proc):
1277
def add_pipe_fds(self, child_pipe_fd, parent_pipe_fd):
2018
1278
# Call "handle_ipc" for both data and EOF events
2019
gobject.io_add_watch(parent_pipe.fileno(),
1279
gobject.io_add_watch(child_pipe_fd.fileno(),
2020
1280
gobject.IO_IN | gobject.IO_HUP,
2021
1281
functools.partial(self.handle_ipc,
2022
parent_pipe =
2023
parent_pipe,
2024
proc = proc))
2025
2026
def handle_ipc(self, source, condition, parent_pipe=None,
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()
2032
return False
2033
2034
# Read a request from the child
2035
request = parent_pipe.recv()
2036
command = request[0]
2037
2038
if command == 'init':
2039
fpr = request[1]
2040
address = request[2]
2041
2042
for c in self.clients.itervalues():
2043
if c.fingerprint == fpr:
2044
client = c
2045
break
2046
else:
2047
logger.info("Client not found for fingerprint: %s, ad"
2048
"dress: %s", fpr, address)
2049
if self.use_dbus:
2050
# Emit D-Bus signal
2051
mandos_dbus_service.ClientNotFound(fpr,
2052
address[0])
2053
parent_pipe.send(False)
2054
return False
2055
2056
gobject.io_add_watch(parent_pipe.fileno(),
2057
gobject.IO_IN | gobject.IO_HUP,
2058
functools.partial(self.handle_ipc,
2059
parent_pipe =
2060
parent_pipe,
2061
proc = proc,
2062
client_object =
2063
client))
2064
parent_pipe.send(True)
2065
# remove the old hook in favor of the new above hook on
2066
# same fileno
2067
return False
2068
if command == 'funcall':
2069
funcname = request[1]
2070
args = request[2]
2071
kwargs = request[3]
2072
2073
parent_pipe.send(('data', getattr(client_object,
2074
funcname)(*args,
2075
**kwargs)))
2076
2077
if command == 'getattr':
2078
attrname = request[1]
2079
if callable(client_object.__getattribute__(attrname)):
2080
parent_pipe.send(('function',))
2081
else:
2082
parent_pipe.send(('data', client_object
2083
.__getattribute__(attrname)))
2084
2085
if command == 'setattr':
2086
attrname = request[1]
2087
value = request[2]
2088
setattr(client_object, attrname, value)
2089
1282
reply = parent_pipe_fd,
1283
sender= child_pipe_fd))
1284
def handle_ipc(self, source, condition, reply=None, sender=None):
1285
condition_names = {
1286
gobject.IO_IN: u"IN", # There is data to read.
1287
gobject.IO_OUT: u"OUT", # Data can be written (without
1288
# blocking).
1289
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1290
gobject.IO_ERR: u"ERR", # Error condition.
1291
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1292
# broken, usually for pipes and
1293
# sockets).
1294
}
1295
conditions_string = ' | '.join(name
1296
for cond, name in
1297
condition_names.iteritems()
1298
if cond & condition)
1299
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1300
conditions_string)
1301
1302
# Read a line from the file object
1303
cmdline = sender.readline()
1304
if not cmdline: # Empty line means end of file
1305
# close the IPC pipes
1306
sender.close()
1307
reply.close()
1308
1309
# Stop calling this function
1310
return False
1311
1312
logger.debug(u"IPC command: %r", cmdline)
1313
1314
# Parse and act on command
1315
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1316
1317
if cmd == u"NOTFOUND":
1318
fpr, address = args.split(None, 1)
1319
logger.warning(u"Client not found for fingerprint: %s, ad"
1320
u"dress: %s", fpr, address)
1321
if self.use_dbus:
1322
# Emit D-Bus signal
1323
mandos_dbus_service.ClientNotFound(fpr, address)
1324
elif cmd == u"DISABLED":
1325
for client in self.clients:
1326
if client.name == args:
1327
logger.warning(u"Client %s is disabled", args)
1328
if self.use_dbus:
1329
# Emit D-Bus signal
1330
client.Rejected()
1331
break
1332
else:
1333
logger.error(u"Unknown client %s is disabled", args)
1334
elif cmd == u"SENDING":
1335
for client in self.clients:
1336
if client.name == args:
1337
logger.info(u"Sending secret to %s", client.name)
1338
client.checked_ok()
1339
if self.use_dbus:
1340
# Emit D-Bus signal
1341
client.GotSecret()
1342
break
1343
else:
1344
logger.error(u"Sending secret to unknown client %s",
1345
args)
1346
elif cmd == u"GETATTR":
1347
attr_name, fpr = args.split(None, 1)
1348
for client in self.clients:
1349
if client.fingerprint == fpr:
1350
attr_value = getattr(client, attr_name, None)
1351
logger.debug("IPC reply: %r", attr_value)
1352
pickle.dump(attr_value, reply)
1353
break
1354
else:
1355
logger.error(u"Client %s on address %s requesting "
1356
u"attribute %s not found", fpr, address,
1357
attr_name)
1358
pickle.dump(None, reply)
1359
else:
1360
logger.error(u"Unknown IPC command: %r", cmdline)
1361
1362
# Keep calling this function
2090
1363
return True
2091
1364
2092
1365
2093
1366
def string_to_delta(interval):
2094
1367
"""Parse a string and return a datetime.timedelta
2095
1368
2096
>>> string_to_delta('7d')
1369
>>> string_to_delta(u'7d')
2097
1370
datetime.timedelta(7)
2098
>>> string_to_delta('60s')
1371
>>> string_to_delta(u'60s')
2099
1372
datetime.timedelta(0, 60)
2100
>>> string_to_delta('60m')
1373
>>> string_to_delta(u'60m')
2101
1374
datetime.timedelta(0, 3600)
2102
>>> string_to_delta('24h')
1375
>>> string_to_delta(u'24h')
2103
1376
datetime.timedelta(1)
2104
>>> string_to_delta('1w')
1377
>>> string_to_delta(u'1w')
2105
1378
datetime.timedelta(7)
2106
>>> string_to_delta('5m 30s')
1379
>>> string_to_delta(u'5m 30s')
2107
1380
datetime.timedelta(0, 330)
2108
1381
"""
2109
1382
timevalue = datetime.timedelta(0)
2111
1384
try:
2112
1385
suffix = unicode(s[-1])
2113
1386
value = int(s[:-1])
2114
if suffix == "d":
1387
if suffix == u"d":
2115
1388
delta = datetime.timedelta(value)
2116
elif suffix == "s":
1389
elif suffix == u"s":
2117
1390
delta = datetime.timedelta(0, value)
2118
elif suffix == "m":
1391
elif suffix == u"m":
2119
1392
delta = datetime.timedelta(0, 0, 0, 0, value)
2120
elif suffix == "h":
1393
elif suffix == u"h":
2121
1394
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
2122
elif suffix == "w":
1395
elif suffix == u"w":
2123
1396
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2124
1397
else:
2125
raise ValueError("Unknown suffix {0!r}"
2126
.format(suffix))
2127
except (ValueError, IndexError) as e:
2128
raise ValueError(*(e.args))
1398
raise ValueError(u"Unknown suffix %r" % suffix)
1399
except (ValueError, IndexError), e:
1400
raise ValueError(e.message)
2129
1401
timevalue += delta
2130
1402
return timevalue
2131
1403
2132
1404
1405
def if_nametoindex(interface):
1406
"""Call the C function if_nametoindex(), or equivalent
1407
1408
Note: This function cannot accept a unicode string."""
1409
global if_nametoindex
1410
try:
1411
if_nametoindex = (ctypes.cdll.LoadLibrary
1412
(ctypes.util.find_library(u"c"))
1413
.if_nametoindex)
1414
except (OSError, AttributeError):
1415
logger.warning(u"Doing if_nametoindex the hard way")
1416
def if_nametoindex(interface):
1417
"Get an interface index the hard way, i.e. using fcntl()"
1418
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1419
with contextlib.closing(socket.socket()) as s:
1420
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1421
struct.pack(str(u"16s16x"),
1422
interface))
1423
interface_index = struct.unpack(str(u"I"),
1424
ifreq[16:20])[0]
1425
return interface_index
1426
return if_nametoindex(interface)
1427
1428
2133
1429
def daemon(nochdir = False, noclose = False):
2134
1430
"""See daemon(3). Standard BSD Unix function.
2135
1431
2138
1434
sys.exit()
2139
1435
os.setsid()
2140
1436
if not nochdir:
2141
os.chdir("/")
1437
os.chdir(u"/")
2142
1438
if os.fork():
2143
1439
sys.exit()
2144
1440
if not noclose:
2145
1441
# Close all standard open file descriptors
2146
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1442
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2147
1443
if not stat.S_ISCHR(os.fstat(null).st_mode):
2148
1444
raise OSError(errno.ENODEV,
2149
"{0} not a character device"
2150
.format(os.devnull))
1445
u"%s not a character device"
1446
% os.path.devnull)
2151
1447
os.dup2(null, sys.stdin.fileno())
2152
1448
os.dup2(null, sys.stdout.fileno())
2153
1449
os.dup2(null, sys.stderr.fileno())
2160
1456
##################################################################
2161
1457
# Parsing of options, both command line and config file
2162
1458
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()
1459
parser = optparse.OptionParser(version = "%%prog %s" % version)
1460
parser.add_option("-i", u"--interface", type=u"string",
1461
metavar="IF", help=u"Bind to interface IF")
1462
parser.add_option("-a", u"--address", type=u"string",
1463
help=u"Address to listen for requests on")
1464
parser.add_option("-p", u"--port", type=u"int",
1465
help=u"Port number to receive requests on")
1466
parser.add_option("--check", action=u"store_true",
1467
help=u"Run self-test")
1468
parser.add_option("--debug", action=u"store_true",
1469
help=u"Debug mode; run in foreground and log to"
1470
u" terminal")
1471
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1472
u" priority string (see GnuTLS documentation)")
1473
parser.add_option("--servicename", type=u"string",
1474
metavar=u"NAME", help=u"Zeroconf service name")
1475
parser.add_option("--configdir", type=u"string",
1476
default=u"/etc/mandos", metavar=u"DIR",
1477
help=u"Directory to search for configuration"
1478
u" files")
1479
parser.add_option("--no-dbus", action=u"store_false",
1480
dest=u"use_dbus", help=u"Do not provide D-Bus"
1481
u" system bus interface")
1482
parser.add_option("--no-ipv6", action=u"store_false",
1483
dest=u"use_ipv6", help=u"Do not use IPv6")
1484
options = parser.parse_args()[0]
2205
1485
2206
1486
if options.check:
2207
1487
import doctest
2209
1489
sys.exit()
2210
1490
2211
1491
# Default values for config file for server-global settings
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",
1492
server_defaults = { u"interface": u"",
1493
u"address": u"",
1494
u"port": u"",
1495
u"debug": u"False",
1496
u"priority":
1497
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1498
u"servicename": u"Mandos",
1499
u"use_dbus": u"True",
1500
u"use_ipv6": u"True",
2226
1501
}
2227
1502
2228
1503
# Parse config file for server-global settings
2229
1504
server_config = configparser.SafeConfigParser(server_defaults)
2230
1505
del server_defaults
2231
1506
server_config.read(os.path.join(options.configdir,
2232
"mandos.conf"))
1507
u"mandos.conf"))
2233
1508
# Convert the SafeConfigParser object to a dict
2234
1509
server_settings = server_config.defaults()
2235
1510
# Use the appropriate methods on the non-string config options
2236
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2237
server_settings[option] = server_config.getboolean("DEFAULT",
1511
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1512
server_settings[option] = server_config.getboolean(u"DEFAULT",
2238
1513
option)
2239
1514
if server_settings["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"])
1515
server_settings["port"] = server_config.getint(u"DEFAULT",
1516
u"port")
2251
1517
del server_config
2252
1518
2253
1519
# Override the settings from the config file with command line
2254
1520
# options, if set.
2255
for option in ("interface", "address", "port", "debug",
2256
"priority", "servicename", "configdir",
2257
"use_dbus", "use_ipv6", "debuglevel", "restore",
2258
"statedir", "socket", "foreground"):
1521
for option in (u"interface", u"address", u"port", u"debug",
1522
u"priority", u"servicename", u"configdir",
1523
u"use_dbus", u"use_ipv6"):
2259
1524
value = getattr(options, option)
2260
1525
if value is not None:
2261
1526
server_settings[option] = value
2264
1529
for option in server_settings.keys():
2265
1530
if type(server_settings[option]) is str:
2266
1531
server_settings[option] = unicode(server_settings[option])
2267
# Debug implies foreground
2268
if server_settings["debug"]:
2269
server_settings["foreground"] = True
2270
1532
# Now we have our good server settings in "server_settings"
2271
1533
2272
1534
##################################################################
2273
1535
2274
1536
# For convenience
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":
1537
debug = server_settings[u"debug"]
1538
use_dbus = server_settings[u"use_dbus"]
1539
use_ipv6 = server_settings[u"use_ipv6"]
1540
1541
if not debug:
1542
syslogger.setLevel(logging.WARNING)
1543
console.setLevel(logging.WARNING)
1544
1545
if server_settings[u"servicename"] != u"Mandos":
2293
1546
syslogger.setFormatter(logging.Formatter
2294
('Mandos ({0}) [%(process)d]:'
2295
' %(levelname)s: %(message)s'
2296
.format(server_settings
2297
["servicename"])))
1547
(u'Mandos (%s) [%%(process)d]:'
1548
u' %%(levelname)s: %%(message)s'
1549
% server_settings[u"servicename"]))
2298
1550
2299
1551
# Parse config file with clients
2300
client_config = configparser.SafeConfigParser(Client
2301
.client_defaults)
2302
client_config.read(os.path.join(server_settings["configdir"],
2303
"clients.conf"))
1552
client_defaults = { u"timeout": u"1h",
1553
u"interval": u"5m",
1554
u"checker": u"fping -q -- %%(host)s",
1555
u"host": u"",
1556
}
1557
client_config = configparser.SafeConfigParser(client_defaults)
1558
client_config.read(os.path.join(server_settings[u"configdir"],
1559
u"clients.conf"))
2304
1560
2305
1561
global mandos_dbus_service
2306
1562
mandos_dbus_service = None
2307
1563
2308
tcp_server = MandosServer((server_settings["address"],
2309
server_settings["port"]),
1564
tcp_server = MandosServer((server_settings[u"address"],
1565
server_settings[u"port"]),
2310
1566
ClientHandler,
2311
interface=(server_settings["interface"]
2312
or None),
1567
interface=server_settings[u"interface"],
2313
1568
use_ipv6=use_ipv6,
2314
1569
gnutls_priority=
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)
1570
server_settings[u"priority"],
1571
use_dbus=use_dbus)
1572
pidfilename = u"/var/run/mandos.pid"
1573
try:
1574
pidfile = open(pidfilename, u"w")
1575
except IOError:
1576
logger.error(u"Could not open file %r", pidfilename)
2327
1577
2328
for name in ("_mandos", "mandos", "nobody"):
1578
try:
1579
uid = pwd.getpwnam(u"_mandos").pw_uid
1580
gid = pwd.getpwnam(u"_mandos").pw_gid
1581
except KeyError:
2329
1582
try:
2330
uid = pwd.getpwnam(name).pw_uid
2331
gid = pwd.getpwnam(name).pw_gid
2332
break
1583
uid = pwd.getpwnam(u"mandos").pw_uid
1584
gid = pwd.getpwnam(u"mandos").pw_gid
2333
1585
except KeyError:
2334
continue
2335
else:
2336
uid = 65534
2337
gid = 65534
1586
try:
1587
uid = pwd.getpwnam(u"nobody").pw_uid
1588
gid = pwd.getpwnam(u"nobody").pw_gid
1589
except KeyError:
1590
uid = 65534
1591
gid = 65534
2338
1592
try:
2339
1593
os.setgid(gid)
2340
1594
os.setuid(uid)
2341
except OSError as error:
2342
if error.errno != errno.EPERM:
1595
except OSError, error:
1596
if error[0] != errno.EPERM:
2343
1597
raise error
2344
1598
1599
# Enable all possible GnuTLS debugging
2345
1600
if debug:
2346
# Enable all possible GnuTLS debugging
2347
2348
1601
# "Use a log level over 10 to enable all debugging options."
2349
1602
# - GnuTLS manual
2350
1603
gnutls.library.functions.gnutls_global_set_log_level(11)
2351
1604
2352
1605
@gnutls.library.types.gnutls_log_func
2353
1606
def debug_gnutls(level, string):
2354
logger.debug("GnuTLS: %s", string[:-1])
1607
logger.debug(u"GnuTLS: %s", string[:-1])
2355
1608
2356
1609
(gnutls.library.functions
2357
1610
.gnutls_global_set_log_function(debug_gnutls))
2358
2359
# Redirect stdin so all checkers get /dev/null
2360
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2361
os.dup2(null, sys.stdin.fileno())
2362
if null > 2:
2363
os.close(null)
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()
2373
1611
2374
1612
global main_loop
2375
1613
# From the Avahi example code
2376
DBusGMainLoop(set_as_default=True)
1614
DBusGMainLoop(set_as_default=True )
2377
1615
main_loop = gobject.MainLoop()
2378
1616
bus = dbus.SystemBus()
2379
1617
# End of Avahi example code
2380
1618
if use_dbus:
2381
1619
try:
2382
bus_name = dbus.service.BusName("se.recompile.Mandos",
1620
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2383
1621
bus, do_not_queue=True)
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)
1622
except dbus.exceptions.NameExistsException, e:
1623
logger.error(unicode(e) + u", disabling D-Bus")
2389
1624
use_dbus = False
2390
server_settings["use_dbus"] = False
1625
server_settings[u"use_dbus"] = False
2391
1626
tcp_server.use_dbus = False
2392
1627
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2393
service = AvahiServiceToSyslog(name =
2394
server_settings["servicename"],
2395
servicetype = "_mandos._tcp",
2396
protocol = protocol, bus = bus)
1628
service = AvahiService(name = server_settings[u"servicename"],
1629
servicetype = u"_mandos._tcp",
1630
protocol = protocol, bus = bus)
2397
1631
if server_settings["interface"]:
2398
1632
service.interface = (if_nametoindex
2399
(str(server_settings["interface"])))
2400
2401
global multiprocessing_manager
2402
multiprocessing_manager = multiprocessing.Manager()
1633
(str(server_settings[u"interface"])))
2403
1634
2404
1635
client_class = Client
2405
1636
if use_dbus:
2406
1637
client_class = functools.partial(ClientDBus, bus = bus)
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))
2477
try:
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
1638
tcp_server.clients.update(set(
1639
client_class(name = section,
1640
config= dict(client_config.items(section)))
1641
for section in client_config.sections()))
2502
1642
if not tcp_server.clients:
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)
1643
logger.warning(u"No clients defined")
1644
1645
if debug:
1646
# Redirect stdin so all checkers get /dev/null
1647
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1648
os.dup2(null, sys.stdin.fileno())
1649
if null > 2:
1650
os.close(null)
1651
else:
1652
# No console logging
1653
logger.removeHandler(console)
1654
# Close all input and output, do double fork, etc.
1655
daemon()
1656
1657
try:
1658
with pidfile:
1659
pid = os.getpid()
1660
pidfile.write(str(pid) + "\n")
2514
1661
del pidfile
2515
del pidfilename
1662
except IOError:
1663
logger.error(u"Could not write to file %r with PID %d",
1664
pidfilename, pid)
1665
except NameError:
1666
# "pidfile" was never created
1667
pass
1668
del pidfilename
2516
1669
1670
if not debug:
1671
signal.signal(signal.SIGINT, signal.SIG_IGN)
2517
1672
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2518
1673
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2519
1674
2520
1675
if use_dbus:
2521
@alternate_dbus_interfaces({"se.recompile.Mandos":
2522
"se.bsnet.fukt.Mandos"})
2523
class MandosDBusService(DBusObjectWithProperties):
1676
class MandosDBusService(dbus.service.Object):
2524
1677
"""A D-Bus proxy object"""
2525
1678
def __init__(self):
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")
1679
dbus.service.Object.__init__(self, bus, u"/")
1680
_interface = u"se.bsnet.fukt.Mandos"
1681
1682
@dbus.service.signal(_interface, signature=u"o")
2536
1683
def ClientAdded(self, objpath):
2537
1684
"D-Bus signal"
2538
1685
pass
2539
1686
2540
@dbus.service.signal(_interface, signature="ss")
1687
@dbus.service.signal(_interface, signature=u"ss")
2541
1688
def ClientNotFound(self, fingerprint, address):
2542
1689
"D-Bus signal"
2543
1690
pass
2544
1691
2545
@dbus.service.signal(_interface, signature="os")
1692
@dbus.service.signal(_interface, signature=u"os")
2546
1693
def ClientRemoved(self, objpath, name):
2547
1694
"D-Bus signal"
2548
1695
pass
2549
1696
2550
@dbus.service.method(_interface, out_signature="ao")
1697
@dbus.service.method(_interface, out_signature=u"ao")
2551
1698
def GetAllClients(self):
2552
1699
"D-Bus method"
2553
1700
return dbus.Array(c.dbus_object_path
2554
for c in
2555
tcp_server.clients.itervalues())
1701
for c in tcp_server.clients)
2556
1702
2557
1703
@dbus.service.method(_interface,
2558
out_signature="a{oa{sv}}")
1704
out_signature=u"a{oa{sv}}")
2559
1705
def GetAllClientsWithProperties(self):
2560
1706
"D-Bus method"
2561
1707
return dbus.Dictionary(
2562
((c.dbus_object_path, c.GetAll(""))
2563
for c in tcp_server.clients.itervalues()),
2564
signature="oa{sv}")
1708
((c.dbus_object_path, c.GetAll(u""))
1709
for c in tcp_server.clients),
1710
signature=u"oa{sv}")
2565
1711
2566
@dbus.service.method(_interface, in_signature="o")
1712
@dbus.service.method(_interface, in_signature=u"o")
2567
1713
def RemoveClient(self, object_path):
2568
1714
"D-Bus method"
2569
for c in tcp_server.clients.itervalues():
1715
for c in tcp_server.clients:
2570
1716
if c.dbus_object_path == object_path:
2571
del tcp_server.clients[c.name]
1717
tcp_server.clients.remove(c)
2572
1718
c.remove_from_connection()
2573
1719
# Don't signal anything except ClientRemoved
2574
1720
c.disable(quiet=True)
2585
1731
"Cleanup function; run on exit"
2586
1732
service.cleanup()
2587
1733
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
2643
1734
while tcp_server.clients:
2644
name, client = tcp_server.clients.popitem()
1735
client = tcp_server.clients.pop()
2645
1736
if use_dbus:
2646
1737
client.remove_from_connection()
1738
client.disable_hook = None
2647
1739
# Don't signal anything except ClientRemoved
2648
1740
client.disable(quiet=True)
2649
1741
if use_dbus:
2650
1742
# Emit D-Bus signal
2651
mandos_dbus_service.ClientRemoved(client
2652
.dbus_object_path,
1743
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2653
1744
client.name)
2654
client_settings.clear()
2655
1745
2656
1746
atexit.register(cleanup)
2657
1747
2658
for client in tcp_server.clients.itervalues():
1748
for client in tcp_server.clients:
2659
1749
if use_dbus:
2660
1750
# Emit D-Bus signal
2661
1751
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2662
# Need to initiate checking of clients
2663
if client.enabled:
2664
client.init_checker()
1752
client.enable()
2665
1753
2666
1754
tcp_server.enable()
2667
1755
tcp_server.server_activate()
2669
1757
# Find out what port we got
2670
1758
service.port = tcp_server.socket.getsockname()[1]
2671
1759
if use_ipv6:
2672
logger.info("Now listening on address %r, port %d,"
2673
" flowinfo %d, scope_id %d",
2674
*tcp_server.socket.getsockname())
1760
logger.info(u"Now listening on address %r, port %d,"
1761
" flowinfo %d, scope_id %d"
1762
% tcp_server.socket.getsockname())
2675
1763
else: # IPv4
2676
logger.info("Now listening on address %r, port %d",
2677
*tcp_server.socket.getsockname())
1764
logger.info(u"Now listening on address %r, port %d"
1765
% tcp_server.socket.getsockname())
2678
1766
2679
1767
#service.interface = tcp_server.socket.getsockname()[3]
2680
1768
2682
1770
# From the Avahi example code
2683
1771
try:
2684
1772
service.activate()
2685
except dbus.exceptions.DBusException as error:
2686
logger.critical("D-Bus Exception", exc_info=error)
1773
except dbus.exceptions.DBusException, error:
1774
logger.critical(u"DBusException: %s", error)
2687
1775
cleanup()
2688
1776
sys.exit(1)
2689
1777
# End of Avahi example code
2693
1781
(tcp_server.handle_request
2694
1782
(*args[2:], **kwargs) or True))
2695
1783
2696
logger.debug("Starting main loop")
1784
logger.debug(u"Starting main loop")
2697
1785
main_loop.run()
2698
except AvahiError as error:
2699
logger.critical("Avahi Error", exc_info=error)
1786
except AvahiError, error:
1787
logger.critical(u"AvahiError: %s", error)
2700
1788
cleanup()
2701
1789
sys.exit(1)
2702
1790
except KeyboardInterrupt:
2703
1791
if debug:
2704
print("", file=sys.stderr)
2705
logger.debug("Server received KeyboardInterrupt")
2706
logger.debug("Server exiting")
1792
print >> sys.stderr
1793
logger.debug(u"Server received KeyboardInterrupt")
1794
logger.debug(u"Server exiting")
2707
1795
# Must run before the D-Bus bus name gets deregistered
2708
1796
cleanup()
2709
1797
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0