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- Committer: Teddy Hogeborn
- Date: 2010-09-12 03:00:40 UTC
- Revision ID: teddy@fukt.bsnet.se-20100912030040-b0uopyennste9fdh
Documentation changes:
* DBUS-API: New file documenting the server D-Bus interface.
* clients.conf: Add examples of new approval settings.
* debian/mandos.docs: Added "DBUS-API".
* mandos-clients.conf.xml (OPTIONS): Added "approved_by_default",
"approval_delay", and
"approval_duration".
* mandos.xml (D-BUS INTERFACE): Refer to the "DBUS-API" file.
(BUGS): Remove mention of lack of a remote query interface.
* DBUS-API: New file documenting the server D-Bus interface.
* clients.conf: Add examples of new approval settings.
* debian/mandos.docs: Added "DBUS-API".
* mandos-clients.conf.xml (OPTIONS): Added "approved_by_default",
"approval_delay", and
"approval_duration".
* mandos.xml (D-BUS INTERFACE): Refer to the "DBUS-API" file.
(BUGS): Remove mention of lack of a remote query interface.
- files removed:
- debian/mandos-client.examples
- 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
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# 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
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# along with this program. If not, see
29
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# <http://www.gnu.org/licenses/>.
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#
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
64
61
import functools
65
62
import cPickle as pickle
66
63
import multiprocessing
67
import types
68
import binascii
69
import tempfile
70
import itertools
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.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
95
88
syslogger = (logging.handlers.SysLogHandler
96
89
(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
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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:'
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' %(message)s'))
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logger.addHandler(console)
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logger.setLevel(level)
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133
134
class PGPError(Exception):
135
"""Exception if encryption/decryption fails"""
136
pass
137
138
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class PGPEngine(object):
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
141
def __init__(self):
142
self.gnupg = GnuPGInterface.GnuPG()
143
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
144
self.gnupg = GnuPGInterface.GnuPG()
145
self.gnupg.options.meta_interactive = False
146
self.gnupg.options.homedir = self.tempdir
147
self.gnupg.options.extra_args.extend(['--force-mdc',
148
'--quiet',
149
'--no-use-agent'])
150
151
def __enter__(self):
152
return self
153
154
def __exit__(self, exc_type, exc_value, traceback):
155
self._cleanup()
156
return False
157
158
def __del__(self):
159
self._cleanup()
160
161
def _cleanup(self):
162
if self.tempdir is not None:
163
# Delete contents of tempdir
164
for root, dirs, files in os.walk(self.tempdir,
165
topdown = False):
166
for filename in files:
167
os.remove(os.path.join(root, filename))
168
for dirname in dirs:
169
os.rmdir(os.path.join(root, dirname))
170
# Remove tempdir
171
os.rmdir(self.tempdir)
172
self.tempdir = None
173
174
def password_encode(self, password):
175
# Passphrase can not be empty and can not contain newlines or
176
# NUL bytes. So we prefix it and hex encode it.
177
return b"mandos" + binascii.hexlify(password)
178
179
def encrypt(self, data, password):
180
self.gnupg.passphrase = self.password_encode(password)
181
with open(os.devnull, "w") as devnull:
182
try:
183
proc = self.gnupg.run(['--symmetric'],
184
create_fhs=['stdin', 'stdout'],
185
attach_fhs={'stderr': devnull})
186
with contextlib.closing(proc.handles['stdin']) as f:
187
f.write(data)
188
with contextlib.closing(proc.handles['stdout']) as f:
189
ciphertext = f.read()
190
proc.wait()
191
except IOError as e:
192
raise PGPError(e)
193
self.gnupg.passphrase = None
194
return ciphertext
195
196
def decrypt(self, data, password):
197
self.gnupg.passphrase = self.password_encode(password)
198
with open(os.devnull, "w") as devnull:
199
try:
200
proc = self.gnupg.run(['--decrypt'],
201
create_fhs=['stdin', 'stdout'],
202
attach_fhs={'stderr': devnull})
203
with contextlib.closing(proc.handles['stdin']) as f:
204
f.write(data)
205
with contextlib.closing(proc.handles['stdout']) as f:
206
decrypted_plaintext = f.read()
207
proc.wait()
208
except IOError as e:
209
raise PGPError(e)
210
self.gnupg.passphrase = None
211
return decrypted_plaintext
212
90
address = "/dev/log"))
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
93
u' %(message)s'))
94
logger.addHandler(syslogger)
95
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
98
u' %(levelname)s:'
99
u' %(message)s'))
100
logger.addHandler(console)
213
101
214
102
class AvahiError(Exception):
215
103
def __init__(self, value, *args, **kwargs):
231
119
Attributes:
232
120
interface: integer; avahi.IF_UNSPEC or an interface index.
233
121
Used to optionally bind to the specified interface.
234
name: string; Example: 'Mandos'
235
type: string; Example: '_mandos._tcp'.
122
name: string; Example: u'Mandos'
123
type: string; Example: u'_mandos._tcp'.
236
124
See <http://www.dns-sd.org/ServiceTypes.html>
237
125
port: integer; what port to announce
238
126
TXT: list of strings; TXT record for the service
245
133
server: D-Bus Server
246
134
bus: dbus.SystemBus()
247
135
"""
248
249
136
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
250
137
servicetype = None, port = None, TXT = None,
251
domain = "", host = "", max_renames = 32768,
138
domain = u"", host = u"", max_renames = 32768,
252
139
protocol = avahi.PROTO_UNSPEC, bus = None):
253
140
self.interface = interface
254
141
self.name = name
263
150
self.group = None # our entry group
264
151
self.server = None
265
152
self.bus = bus
266
self.entry_group_state_changed_match = None
267
268
153
def rename(self):
269
154
"""Derived from the Avahi example code"""
270
155
if self.rename_count >= self.max_renames:
271
logger.critical("No suitable Zeroconf service name found"
272
" after %i retries, exiting.",
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
273
158
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 ...",
159
raise AvahiServiceError(u"Too many renames")
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
161
logger.info(u"Changing Zeroconf service name to %r ...",
278
162
self.name)
163
syslogger.setFormatter(logging.Formatter
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
166
% self.name))
279
167
self.remove()
280
168
try:
281
169
self.add()
282
except dbus.exceptions.DBusException as error:
283
logger.critical("D-Bus Exception", exc_info=error)
170
except dbus.exceptions.DBusException, error:
171
logger.critical(u"DBusException: %s", error)
284
172
self.cleanup()
285
173
os._exit(1)
286
174
self.rename_count += 1
287
288
175
def remove(self):
289
176
"""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
177
if self.group is not None:
294
178
self.group.Reset()
295
296
179
def add(self):
297
180
"""Derived from the Avahi example code"""
298
self.remove()
299
181
if self.group is None:
300
182
self.group = dbus.Interface(
301
183
self.bus.get_object(avahi.DBUS_NAME,
302
184
self.server.EntryGroupNew()),
303
185
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' ...",
186
self.group.connect_to_signal('StateChanged',
187
self
188
.entry_group_state_changed)
189
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
308
190
self.name, self.type)
309
191
self.group.AddService(
310
192
self.interface,
315
197
dbus.UInt16(self.port),
316
198
avahi.string_array_to_txt_array(self.TXT))
317
199
self.group.Commit()
318
319
200
def entry_group_state_changed(self, state, error):
320
201
"""Derived from the Avahi example code"""
321
logger.debug("Avahi entry group state change: %i", state)
202
logger.debug(u"Avahi entry group state change: %i", state)
322
203
323
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
324
logger.debug("Zeroconf service established.")
205
logger.debug(u"Zeroconf service established.")
325
206
elif state == avahi.ENTRY_GROUP_COLLISION:
326
logger.info("Zeroconf service name collision.")
207
logger.warning(u"Zeroconf service name collision.")
327
208
self.rename()
328
209
elif state == avahi.ENTRY_GROUP_FAILURE:
329
logger.critical("Avahi: Error in group state changed %s",
210
logger.critical(u"Avahi: Error in group state changed %s",
330
211
unicode(error))
331
raise AvahiGroupError("State changed: {0!s}"
332
.format(error))
333
212
raise AvahiGroupError(u"State changed: %s"
213
% unicode(error))
334
214
def cleanup(self):
335
215
"""Derived from the Avahi example code"""
336
216
if self.group is not None:
337
try:
338
self.group.Free()
339
except (dbus.exceptions.UnknownMethodException,
340
dbus.exceptions.DBusException):
341
pass
217
self.group.Free()
342
218
self.group = None
343
self.remove()
344
345
def server_state_changed(self, state, error=None):
219
def server_state_changed(self, state):
346
220
"""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()
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
224
self.remove()
362
225
elif state == avahi.SERVER_RUNNING:
363
226
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
227
def activate(self):
371
228
"""Derived from the Avahi example code"""
372
229
if self.server is None:
373
230
self.server = dbus.Interface(
374
231
self.bus.get_object(avahi.DBUS_NAME,
375
avahi.DBUS_PATH_SERVER,
376
follow_name_owner_changes=True),
232
avahi.DBUS_PATH_SERVER),
377
233
avahi.DBUS_INTERFACE_SERVER)
378
self.server.connect_to_signal("StateChanged",
234
self.server.connect_to_signal(u"StateChanged",
379
235
self.server_state_changed)
380
236
self.server_state_changed(self.server.GetState())
381
237
382
238
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
239
class Client(object):
402
240
"""A representation of a client host served by this server.
403
241
404
242
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
243
name: string; from the config file, used in log messages and
244
D-Bus identifiers
245
fingerprint: string (40 or 32 hexadecimal digits); used to
246
uniquely identify the client
247
secret: bytestring; sent verbatim (over TLS) to client
248
host: string; available for use by the checker command
249
created: datetime.datetime(); (UTC) object creation
250
last_enabled: datetime.datetime(); (UTC)
251
enabled: bool()
252
last_checked_ok: datetime.datetime(); (UTC) or None
253
timeout: datetime.timedelta(); How long from last_checked_ok
254
until this client is disabled
255
interval: datetime.timedelta(); How often to start a new checker
256
disable_hook: If set, called by disable() as disable_hook(self)
408
257
checker: subprocess.Popen(); a running checker process used
409
258
to see if the client lives.
410
259
'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
260
checker_initiator_tag: a gobject event source tag, or None
261
disable_initiator_tag: - '' -
262
checker_callback_tag: - '' -
263
checker_command: string; External command which is run to check if
264
client lives. %() expansions are done at
414
265
runtime with vars(self) as dict, so that for
415
266
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
267
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
268
approval_delay: datetime.timedelta(); Time to wait for approval
269
_approved: bool(); 'None' if not yet approved/disapproved
270
approval_duration: datetime.timedelta(); Duration of one approval
442
271
"""
443
272
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
}
273
@staticmethod
274
def _timedelta_to_milliseconds(td):
275
"Convert a datetime.timedelta() to milliseconds"
276
return ((td.days * 24 * 60 * 60 * 1000)
277
+ (td.seconds * 1000)
278
+ (td.microseconds // 1000))
459
279
460
280
def timeout_milliseconds(self):
461
281
"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)
282
return self._timedelta_to_milliseconds(self.timeout)
467
283
468
284
def interval_milliseconds(self):
469
285
"Return the 'interval' attribute in milliseconds"
470
return timedelta_to_milliseconds(self.interval)
471
286
return self._timedelta_to_milliseconds(self.interval)
287
472
288
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):
289
return self._timedelta_to_milliseconds(self.approval_delay)
290
291
def __init__(self, name = None, disable_hook=None, config=None):
292
"""Note: the 'checker' key in 'config' sets the
293
'checker_command' attribute and *not* the 'checker'
294
attribute."""
523
295
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)
296
if config is None:
297
config = {}
298
logger.debug(u"Creating client %r", self.name)
539
299
# Uppercase and remove spaces from fingerprint for later
540
300
# comparison purposes with return value from the fingerprint()
541
301
# 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
302
self.fingerprint = (config[u"fingerprint"].upper()
303
.replace(u" ", u""))
304
logger.debug(u" Fingerprint: %s", self.fingerprint)
305
if u"secret" in config:
306
self.secret = config[u"secret"].decode(u"base64")
307
elif u"secfile" in config:
308
with open(os.path.expanduser(os.path.expandvars
309
(config[u"secfile"])),
310
"rb") as secfile:
311
self.secret = secfile.read()
312
else:
313
raise TypeError(u"No secret or secfile for client %s"
314
% self.name)
315
self.host = config.get(u"host", u"")
316
self.created = datetime.datetime.utcnow()
317
self.enabled = False
318
self.last_enabled = None
319
self.last_checked_ok = None
320
self.timeout = string_to_delta(config[u"timeout"])
321
self.interval = string_to_delta(config[u"interval"])
322
self.disable_hook = disable_hook
547
323
self.checker = None
548
324
self.checker_initiator_tag = None
549
325
self.disable_initiator_tag = None
550
326
self.checker_callback_tag = None
327
self.checker_command = config[u"checker"]
551
328
self.current_checker_command = None
552
self.approved = None
329
self.last_connect = None
330
self._approved = None
331
self.approved_by_default = config.get(u"approved_by_default",
332
True)
553
333
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)
334
self.approval_delay = string_to_delta(
335
config[u"approval_delay"])
336
self.approval_duration = string_to_delta(
337
config[u"approval_duration"])
338
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
568
339
569
# Send notice to process children that client state has changed
570
340
def send_changedstate(self):
571
with self.changedstate:
572
self.changedstate.notify_all()
573
341
self.changedstate.acquire()
342
self.changedstate.notify_all()
343
self.changedstate.release()
344
574
345
def enable(self):
575
346
"""Start this client's checker and timeout hooks"""
576
if getattr(self, "enabled", False):
347
if getattr(self, u"enabled", False):
577
348
# Already enabled
578
349
return
579
self.expires = datetime.datetime.utcnow() + self.timeout
580
self.enabled = True
350
self.send_changedstate()
581
351
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
352
# Schedule a new checker to be started an 'interval' from now,
610
353
# and every interval from then on.
611
if self.checker_initiator_tag is not None:
612
gobject.source_remove(self.checker_initiator_tag)
613
354
self.checker_initiator_tag = (gobject.timeout_add
614
355
(self.interval_milliseconds(),
615
356
self.start_checker))
616
357
# 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
358
self.disable_initiator_tag = (gobject.timeout_add
620
359
(self.timeout_milliseconds(),
621
360
self.disable))
361
self.enabled = True
622
362
# Also start a new checker *right now*.
623
363
self.start_checker()
624
364
365
def disable(self, quiet=True):
366
"""Disable this client."""
367
if not getattr(self, "enabled", False):
368
return False
369
if not quiet:
370
self.send_changedstate()
371
if not quiet:
372
logger.info(u"Disabling client %s", self.name)
373
if getattr(self, u"disable_initiator_tag", False):
374
gobject.source_remove(self.disable_initiator_tag)
375
self.disable_initiator_tag = None
376
if getattr(self, u"checker_initiator_tag", False):
377
gobject.source_remove(self.checker_initiator_tag)
378
self.checker_initiator_tag = None
379
self.stop_checker()
380
if self.disable_hook:
381
self.disable_hook(self)
382
self.enabled = False
383
# Do not run this again if called by a gobject.timeout_add
384
return False
385
386
def __del__(self):
387
self.disable_hook = None
388
self.disable()
389
625
390
def checker_callback(self, pid, condition, command):
626
391
"""The checker has completed, so take appropriate actions."""
627
392
self.checker_callback_tag = None
628
393
self.checker = None
629
394
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",
395
exitstatus = os.WEXITSTATUS(condition)
396
if exitstatus == 0:
397
logger.info(u"Checker for %(name)s succeeded",
633
398
vars(self))
634
399
self.checked_ok()
635
400
else:
636
logger.info("Checker for %(name)s failed",
401
logger.info(u"Checker for %(name)s failed",
637
402
vars(self))
638
403
else:
639
self.last_checker_status = -1
640
logger.warning("Checker for %(name)s crashed?",
404
logger.warning(u"Checker for %(name)s crashed?",
641
405
vars(self))
642
406
643
407
def checked_ok(self):
644
"""Assert that the client has been seen, alive and well."""
408
"""Bump up the timeout for this client.
409
410
This should only be called when the client has been seen,
411
alive and well.
412
"""
645
413
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()
414
gobject.source_remove(self.disable_initiator_tag)
415
self.disable_initiator_tag = (gobject.timeout_add
416
(self.timeout_milliseconds(),
417
self.disable))
664
418
665
419
def start_checker(self):
666
420
"""Start a new checker subprocess if one is not running.
668
422
If a checker already exists, leave it running and do
669
423
nothing."""
670
424
# 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
425
# did that, then if a checker (for some reason) started
426
# running slowly and taking more than 'interval' time, the
427
# client would inevitably timeout, since no checker would get
428
# a chance to run to completion. If we instead leave running
675
429
# checkers alone, the checker would have to take more time
676
430
# than 'timeout' for the client to be disabled, which is as it
677
431
# should be.
679
433
# If a checker exists, make sure it is not a zombie
680
434
try:
681
435
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
682
except (AttributeError, OSError) as error:
436
except (AttributeError, OSError), error:
683
437
if (isinstance(error, OSError)
684
438
and error.errno != errno.ECHILD):
685
439
raise error
686
440
else:
687
441
if pid:
688
logger.warning("Checker was a zombie")
442
logger.warning(u"Checker was a zombie")
689
443
gobject.source_remove(self.checker_callback_tag)
690
444
self.checker_callback(pid, status,
691
445
self.current_checker_command)
692
446
# Start a new checker if needed
693
447
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
448
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
449
# In case checker_command has exactly one % operator
450
command = self.checker_command % self.host
451
except TypeError:
452
# Escape attributes for the shell
453
escaped_attrs = dict((key,
454
re.escape(unicode(str(val),
455
errors=
456
u'replace')))
457
for key, val in
458
vars(self).iteritems())
459
try:
460
command = self.checker_command % escaped_attrs
461
except TypeError, error:
462
logger.error(u'Could not format string "%s":'
463
u' %s', self.checker_command, error)
464
return True # Try again later
705
465
self.current_checker_command = command
706
466
try:
707
logger.info("Starting checker %r for %s",
467
logger.info(u"Starting checker %r for %s",
708
468
command, self.name)
709
469
# We don't need to redirect stdout and stderr, since
710
470
# in normal mode, that is already done by daemon(),
712
472
# always replaced by /dev/null.)
713
473
self.checker = subprocess.Popen(command,
714
474
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)
475
shell=True, cwd=u"/")
476
self.checker_callback_tag = (gobject.child_watch_add
477
(self.checker.pid,
478
self.checker_callback,
479
data=command))
480
# The checker may have completed before the gobject
481
# watch was added. Check for this.
482
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
483
if pid:
484
gobject.source_remove(self.checker_callback_tag)
485
self.checker_callback(pid, status, command)
486
except OSError, error:
487
logger.error(u"Failed to start subprocess: %s",
488
error)
729
489
# Re-run this periodically if run by gobject.timeout_add
730
490
return True
731
491
734
494
if self.checker_callback_tag:
735
495
gobject.source_remove(self.checker_callback_tag)
736
496
self.checker_callback_tag = None
737
if getattr(self, "checker", None) is None:
497
if getattr(self, u"checker", None) is None:
738
498
return
739
logger.debug("Stopping checker for %(name)s", vars(self))
499
logger.debug(u"Stopping checker for %(name)s", vars(self))
740
500
try:
741
self.checker.terminate()
501
os.kill(self.checker.pid, signal.SIGTERM)
742
502
#time.sleep(0.5)
743
503
#if self.checker.poll() is None:
744
# self.checker.kill()
745
except OSError as error:
504
# os.kill(self.checker.pid, signal.SIGKILL)
505
except OSError, error:
746
506
if error.errno != errno.ESRCH: # No such process
747
507
raise
748
508
self.checker = None
749
509
750
751
def dbus_service_property(dbus_interface, signature="v",
752
access="readwrite", byte_arrays=False):
510
def dbus_service_property(dbus_interface, signature=u"v",
511
access=u"readwrite", byte_arrays=False):
753
512
"""Decorators for marking methods of a DBusObjectWithProperties to
754
513
become properties on the D-Bus.
755
514
762
521
"""
763
522
# Encoding deeply encoded byte arrays is not supported yet by the
764
523
# "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))
524
if byte_arrays and signature != u"ay":
525
raise ValueError(u"Byte arrays not supported for non-'ay'"
526
u" signature %r" % signature)
768
527
def decorator(func):
769
528
func._dbus_is_property = True
770
529
func._dbus_interface = dbus_interface
771
530
func._dbus_signature = signature
772
531
func._dbus_access = access
773
532
func._dbus_name = func.__name__
774
if func._dbus_name.endswith("_dbus_property"):
533
if func._dbus_name.endswith(u"_dbus_property"):
775
534
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
535
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
814
536
return func
815
537
return decorator
816
538
836
558
837
559
class DBusObjectWithProperties(dbus.service.Object):
838
560
"""A D-Bus object with properties.
839
561
840
562
Classes inheriting from this can use the dbus_service_property
841
563
decorator to expose methods as D-Bus properties. It exposes the
842
564
standard Get(), Set(), and GetAll() methods on the D-Bus.
843
565
"""
844
566
845
567
@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)
568
def _is_dbus_property(obj):
569
return getattr(obj, u"_dbus_is_property", False)
854
570
855
def _get_all_dbus_things(self, thing):
571
def _get_all_dbus_properties(self):
856
572
"""Returns a generator of (name, attribute) pairs
857
573
"""
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)))
574
return ((prop._dbus_name, prop)
575
for name, prop in
576
inspect.getmembers(self, self._is_dbus_property))
865
577
866
578
def _get_dbus_property(self, interface_name, property_name):
867
579
"""Returns a bound method if one exists which is a D-Bus
868
580
property with the specified name and interface.
869
581
"""
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
582
for name in (property_name,
583
property_name + u"_dbus_property"):
584
prop = getattr(self, name, None)
585
if (prop is None
586
or not self._is_dbus_property(prop)
587
or prop._dbus_name != property_name
588
or (interface_name and prop._dbus_interface
589
and interface_name != prop._dbus_interface)):
590
continue
591
return prop
878
592
# No such property
879
raise DBusPropertyNotFound(self.dbus_object_path + ":"
880
+ interface_name + "."
593
raise DBusPropertyNotFound(self.dbus_object_path + u":"
594
+ interface_name + u"."
881
595
+ property_name)
882
596
883
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
884
out_signature="v")
597
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
598
out_signature=u"v")
885
599
def Get(self, interface_name, property_name):
886
600
"""Standard D-Bus property Get() method, see D-Bus standard.
887
601
"""
888
602
prop = self._get_dbus_property(interface_name, property_name)
889
if prop._dbus_access == "write":
603
if prop._dbus_access == u"write":
890
604
raise DBusPropertyAccessException(property_name)
891
605
value = prop()
892
if not hasattr(value, "variant_level"):
606
if not hasattr(value, u"variant_level"):
893
607
return value
894
608
return type(value)(value, variant_level=value.variant_level+1)
895
609
896
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
897
611
def Set(self, interface_name, property_name, value):
898
612
"""Standard D-Bus property Set() method, see D-Bus standard.
899
613
"""
900
614
prop = self._get_dbus_property(interface_name, property_name)
901
if prop._dbus_access == "read":
615
if prop._dbus_access == u"read":
902
616
raise DBusPropertyAccessException(property_name)
903
if prop._dbus_get_args_options["byte_arrays"]:
617
if prop._dbus_get_args_options[u"byte_arrays"]:
904
618
# The byte_arrays option is not supported yet on
905
619
# signatures other than "ay".
906
if prop._dbus_signature != "ay":
620
if prop._dbus_signature != u"ay":
907
621
raise ValueError
908
value = dbus.ByteArray(b''.join(chr(byte)
909
for byte in value))
622
value = dbus.ByteArray(''.join(unichr(byte)
623
for byte in value))
910
624
prop(value)
911
625
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
913
out_signature="a{sv}")
626
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
627
out_signature=u"a{sv}")
914
628
def GetAll(self, interface_name):
915
629
"""Standard D-Bus property GetAll() method, see D-Bus
916
630
standard.
917
631
918
632
Note: Will not include properties with access="write".
919
633
"""
920
properties = {}
921
for name, prop in self._get_all_dbus_things("property"):
634
all = {}
635
for name, prop in self._get_all_dbus_properties():
922
636
if (interface_name
923
637
and interface_name != prop._dbus_interface):
924
638
# Interface non-empty but did not match
925
639
continue
926
640
# Ignore write-only properties
927
if prop._dbus_access == "write":
641
if prop._dbus_access == u"write":
928
642
continue
929
643
value = prop()
930
if not hasattr(value, "variant_level"):
931
properties[name] = value
644
if not hasattr(value, u"variant_level"):
645
all[name] = value
932
646
continue
933
properties[name] = type(value)(value, variant_level=
934
value.variant_level+1)
935
return dbus.Dictionary(properties, signature="sv")
647
all[name] = type(value)(value, variant_level=
648
value.variant_level+1)
649
return dbus.Dictionary(all, signature=u"sv")
936
650
937
651
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
938
out_signature="s",
652
out_signature=u"s",
939
653
path_keyword='object_path',
940
654
connection_keyword='connection')
941
655
def Introspect(self, object_path, connection):
942
"""Overloading of standard D-Bus method.
943
944
Inserts property tags and interface annotation tags.
656
"""Standard D-Bus method, overloaded to insert property tags.
945
657
"""
946
658
xmlstring = dbus.service.Object.Introspect(self, object_path,
947
659
connection)
948
660
try:
949
661
document = xml.dom.minidom.parseString(xmlstring)
950
662
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)
663
e = document.createElement(u"property")
664
e.setAttribute(u"name", name)
665
e.setAttribute(u"type", prop._dbus_signature)
666
e.setAttribute(u"access", prop._dbus_access)
955
667
return e
956
for if_tag in document.getElementsByTagName("interface"):
957
# Add property tags
668
for if_tag in document.getElementsByTagName(u"interface"):
958
669
for tag in (make_tag(document, name, prop)
959
670
for name, prop
960
in self._get_all_dbus_things("property")
671
in self._get_all_dbus_properties()
961
672
if prop._dbus_interface
962
== if_tag.getAttribute("name")):
673
== if_tag.getAttribute(u"name")):
963
674
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
675
# Add the names to the return values for the
996
676
# "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")
677
if (if_tag.getAttribute(u"name")
678
== u"org.freedesktop.DBus.Properties"):
679
for cn in if_tag.getElementsByTagName(u"method"):
680
if cn.getAttribute(u"name") == u"Get":
681
for arg in cn.getElementsByTagName(u"arg"):
682
if (arg.getAttribute(u"direction")
683
== u"out"):
684
arg.setAttribute(u"name", u"value")
685
elif cn.getAttribute(u"name") == u"GetAll":
686
for arg in cn.getElementsByTagName(u"arg"):
687
if (arg.getAttribute(u"direction")
688
== u"out"):
689
arg.setAttribute(u"name", u"props")
690
xmlstring = document.toxml(u"utf-8")
1011
691
document.unlink()
1012
692
except (AttributeError, xml.dom.DOMException,
1013
xml.parsers.expat.ExpatError) as error:
1014
logger.error("Failed to override Introspection method",
1015
exc_info=error)
693
xml.parsers.expat.ExpatError), error:
694
logger.error(u"Failed to override Introspection method",
695
error)
1016
696
return xmlstring
1017
697
1018
698
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
699
class ClientDBus(Client, DBusObjectWithProperties):
1199
700
"""A Client class using D-Bus
1200
701
1202
703
dbus_object_path: dbus.ObjectPath
1203
704
bus: dbus.SystemBus()
1204
705
"""
1205
1206
runtime_expansions = (Client.runtime_expansions
1207
+ ("dbus_object_path",))
1208
1209
706
# dbus.service.Object doesn't use super(), so we can't either.
1210
707
1211
708
def __init__(self, bus = None, *args, **kwargs):
709
self._approvals_pending = 0
1212
710
self.bus = bus
1213
711
Client.__init__(self, *args, **kwargs)
1214
712
# Only now, when this client is initialized, can it show up on
1215
713
# the D-Bus
1216
client_object_name = unicode(self.name).translate(
1217
{ord("."): ord("_"),
1218
ord("-"): ord("_")})
1219
714
self.dbus_object_path = (dbus.ObjectPath
1220
("/clients/" + client_object_name))
715
(u"/clients/"
716
+ self.name.replace(u".", u"_")))
1221
717
DBusObjectWithProperties.__init__(self, self.bus,
1222
718
self.dbus_object_path)
1223
1224
def notifychangeproperty(transform_func,
1225
dbus_name, type_func=lambda x: x,
1226
variant_level=1):
1227
""" Modify a variable so that it's a property which announces
1228
its changes to DBus.
1229
1230
transform_fun: Function that takes a value and a variant_level
1231
and transforms it to a D-Bus type.
1232
dbus_name: D-Bus name of the variable
1233
type_func: Function that transform the value before sending it
1234
to the D-Bus. Default: no transform
1235
variant_level: D-Bus variant level. Default: 1
1236
"""
1237
attrname = "_{0}".format(dbus_name)
1238
def setter(self, value):
1239
if hasattr(self, "dbus_object_path"):
1240
if (not hasattr(self, attrname) or
1241
type_func(getattr(self, attrname, None))
1242
!= type_func(value)):
1243
dbus_value = transform_func(type_func(value),
1244
variant_level
1245
=variant_level)
1246
self.PropertyChanged(dbus.String(dbus_name),
1247
dbus_value)
1248
setattr(self, attrname, value)
1249
1250
return property(lambda self: getattr(self, attrname), setter)
1251
1252
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1253
approvals_pending = notifychangeproperty(dbus.Boolean,
1254
"ApprovalPending",
1255
type_func = bool)
1256
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1257
last_enabled = notifychangeproperty(datetime_to_dbus,
1258
"LastEnabled")
1259
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1260
type_func = lambda checker:
1261
checker is not None)
1262
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1263
"LastCheckedOK")
1264
last_checker_status = notifychangeproperty(dbus.Int16,
1265
"LastCheckerStatus")
1266
last_approval_request = notifychangeproperty(
1267
datetime_to_dbus, "LastApprovalRequest")
1268
approved_by_default = notifychangeproperty(dbus.Boolean,
1269
"ApprovedByDefault")
1270
approval_delay = notifychangeproperty(dbus.UInt64,
1271
"ApprovalDelay",
1272
type_func =
1273
timedelta_to_milliseconds)
1274
approval_duration = notifychangeproperty(
1275
dbus.UInt64, "ApprovalDuration",
1276
type_func = timedelta_to_milliseconds)
1277
host = notifychangeproperty(dbus.String, "Host")
1278
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1279
type_func =
1280
timedelta_to_milliseconds)
1281
extended_timeout = notifychangeproperty(
1282
dbus.UInt64, "ExtendedTimeout",
1283
type_func = timedelta_to_milliseconds)
1284
interval = notifychangeproperty(dbus.UInt64,
1285
"Interval",
1286
type_func =
1287
timedelta_to_milliseconds)
1288
checker_command = notifychangeproperty(dbus.String, "Checker")
1289
1290
del notifychangeproperty
719
720
def _get_approvals_pending(self):
721
return self._approvals_pending
722
def _set_approvals_pending(self, value):
723
old_value = self._approvals_pending
724
self._approvals_pending = value
725
bval = bool(value)
726
if (hasattr(self, "dbus_object_path")
727
and bval is not bool(old_value)):
728
dbus_bool = dbus.Boolean(bval, variant_level=1)
729
self.PropertyChanged(dbus.String(u"ApprovalPending"),
730
dbus_bool)
731
732
approvals_pending = property(_get_approvals_pending,
733
_set_approvals_pending)
734
del _get_approvals_pending, _set_approvals_pending
735
736
@staticmethod
737
def _datetime_to_dbus(dt, variant_level=0):
738
"""Convert a UTC datetime.datetime() to a D-Bus type."""
739
return dbus.String(dt.isoformat(),
740
variant_level=variant_level)
741
742
def enable(self):
743
oldstate = getattr(self, u"enabled", False)
744
r = Client.enable(self)
745
if oldstate != self.enabled:
746
# Emit D-Bus signals
747
self.PropertyChanged(dbus.String(u"Enabled"),
748
dbus.Boolean(True, variant_level=1))
749
self.PropertyChanged(
750
dbus.String(u"LastEnabled"),
751
self._datetime_to_dbus(self.last_enabled,
752
variant_level=1))
753
return r
754
755
def disable(self, quiet = False):
756
oldstate = getattr(self, u"enabled", False)
757
r = Client.disable(self, quiet=quiet)
758
if not quiet and oldstate != self.enabled:
759
# Emit D-Bus signal
760
self.PropertyChanged(dbus.String(u"Enabled"),
761
dbus.Boolean(False, variant_level=1))
762
return r
1291
763
1292
764
def __del__(self, *args, **kwargs):
1293
765
try:
1294
766
self.remove_from_connection()
1295
767
except LookupError:
1296
768
pass
1297
if hasattr(DBusObjectWithProperties, "__del__"):
769
if hasattr(DBusObjectWithProperties, u"__del__"):
1298
770
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1299
771
Client.__del__(self, *args, **kwargs)
1300
772
1302
774
*args, **kwargs):
1303
775
self.checker_callback_tag = None
1304
776
self.checker = None
777
# Emit D-Bus signal
778
self.PropertyChanged(dbus.String(u"CheckerRunning"),
779
dbus.Boolean(False, variant_level=1))
1305
780
if os.WIFEXITED(condition):
1306
781
exitstatus = os.WEXITSTATUS(condition)
1307
782
# Emit D-Bus signal
1317
792
return Client.checker_callback(self, pid, condition, command,
1318
793
*args, **kwargs)
1319
794
795
def checked_ok(self, *args, **kwargs):
796
r = Client.checked_ok(self, *args, **kwargs)
797
# Emit D-Bus signal
798
self.PropertyChanged(
799
dbus.String(u"LastCheckedOK"),
800
(self._datetime_to_dbus(self.last_checked_ok,
801
variant_level=1)))
802
return r
803
1320
804
def start_checker(self, *args, **kwargs):
1321
805
old_checker = self.checker
1322
806
if self.checker is not None:
1329
813
and old_checker_pid != self.checker.pid):
1330
814
# Emit D-Bus signal
1331
815
self.CheckerStarted(self.current_checker_command)
816
self.PropertyChanged(
817
dbus.String(u"CheckerRunning"),
818
dbus.Boolean(True, variant_level=1))
1332
819
return r
1333
820
821
def stop_checker(self, *args, **kwargs):
822
old_checker = getattr(self, u"checker", None)
823
r = Client.stop_checker(self, *args, **kwargs)
824
if (old_checker is not None
825
and getattr(self, u"checker", None) is None):
826
self.PropertyChanged(dbus.String(u"CheckerRunning"),
827
dbus.Boolean(False, variant_level=1))
828
return r
829
1334
830
def _reset_approved(self):
1335
self.approved = None
831
self._approved = None
1336
832
return False
1337
833
1338
834
def approve(self, value=True):
1339
self.approved = value
1340
gobject.timeout_add(timedelta_to_milliseconds
835
self.send_changedstate()
836
self._approved = value
837
gobject.timeout_add(self._timedelta_to_milliseconds
1341
838
(self.approval_duration),
1342
839
self._reset_approved)
1343
self.send_changedstate()
840
1344
841
1345
842
## 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"}
843
_interface = u"se.bsnet.fukt.Mandos.Client"
1354
844
1355
845
## Signals
1356
846
1357
847
# CheckerCompleted - signal
1358
@dbus.service.signal(_interface, signature="nxs")
848
@dbus.service.signal(_interface, signature=u"nxs")
1359
849
def CheckerCompleted(self, exitcode, waitstatus, command):
1360
850
"D-Bus signal"
1361
851
pass
1362
852
1363
853
# CheckerStarted - signal
1364
@dbus.service.signal(_interface, signature="s")
854
@dbus.service.signal(_interface, signature=u"s")
1365
855
def CheckerStarted(self, command):
1366
856
"D-Bus signal"
1367
857
pass
1368
858
1369
859
# PropertyChanged - signal
1370
@dbus.service.signal(_interface, signature="sv")
860
@dbus.service.signal(_interface, signature=u"sv")
1371
861
def PropertyChanged(self, property, value):
1372
862
"D-Bus signal"
1373
863
pass
1382
872
pass
1383
873
1384
874
# Rejected - signal
1385
@dbus.service.signal(_interface, signature="s")
875
@dbus.service.signal(_interface, signature=u"s")
1386
876
def Rejected(self, reason):
1387
877
"D-Bus signal"
1388
878
pass
1389
879
1390
880
# NeedApproval - signal
1391
@dbus.service.signal(_interface, signature="tb")
881
@dbus.service.signal(_interface, signature=u"tb")
1392
882
def NeedApproval(self, timeout, default):
1393
883
"D-Bus signal"
1394
return self.need_approval()
884
pass
1395
885
1396
886
## Methods
1397
887
1398
888
# Approve - method
1399
@dbus.service.method(_interface, in_signature="b")
889
@dbus.service.method(_interface, in_signature=u"b")
1400
890
def Approve(self, value):
1401
891
self.approve(value)
1402
892
1403
893
# CheckedOK - method
1404
894
@dbus.service.method(_interface)
1405
895
def CheckedOK(self):
1406
self.checked_ok()
896
return self.checked_ok()
1407
897
1408
898
# Enable - method
1409
899
@dbus.service.method(_interface)
1431
921
## Properties
1432
922
1433
923
# ApprovalPending - property
1434
@dbus_service_property(_interface, signature="b", access="read")
924
@dbus_service_property(_interface, signature=u"b", access=u"read")
1435
925
def ApprovalPending_dbus_property(self):
1436
926
return dbus.Boolean(bool(self.approvals_pending))
1437
927
1438
928
# ApprovedByDefault - property
1439
@dbus_service_property(_interface, signature="b",
1440
access="readwrite")
929
@dbus_service_property(_interface, signature=u"b",
930
access=u"readwrite")
1441
931
def ApprovedByDefault_dbus_property(self, value=None):
1442
932
if value is None: # get
1443
933
return dbus.Boolean(self.approved_by_default)
1444
934
self.approved_by_default = bool(value)
935
# Emit D-Bus signal
936
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
937
dbus.Boolean(value, variant_level=1))
1445
938
1446
939
# ApprovalDelay - property
1447
@dbus_service_property(_interface, signature="t",
1448
access="readwrite")
940
@dbus_service_property(_interface, signature=u"t",
941
access=u"readwrite")
1449
942
def ApprovalDelay_dbus_property(self, value=None):
1450
943
if value is None: # get
1451
944
return dbus.UInt64(self.approval_delay_milliseconds())
1452
945
self.approval_delay = datetime.timedelta(0, 0, 0, value)
946
# Emit D-Bus signal
947
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
948
dbus.UInt64(value, variant_level=1))
1453
949
1454
950
# ApprovalDuration - property
1455
@dbus_service_property(_interface, signature="t",
1456
access="readwrite")
951
@dbus_service_property(_interface, signature=u"t",
952
access=u"readwrite")
1457
953
def ApprovalDuration_dbus_property(self, value=None):
1458
954
if value is None: # get
1459
return dbus.UInt64(timedelta_to_milliseconds(
955
return dbus.UInt64(self._timedelta_to_milliseconds(
1460
956
self.approval_duration))
1461
957
self.approval_duration = datetime.timedelta(0, 0, 0, value)
958
# Emit D-Bus signal
959
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
960
dbus.UInt64(value, variant_level=1))
1462
961
1463
962
# Name - property
1464
@dbus_service_property(_interface, signature="s", access="read")
963
@dbus_service_property(_interface, signature=u"s", access=u"read")
1465
964
def Name_dbus_property(self):
1466
965
return dbus.String(self.name)
1467
966
1468
967
# Fingerprint - property
1469
@dbus_service_property(_interface, signature="s", access="read")
968
@dbus_service_property(_interface, signature=u"s", access=u"read")
1470
969
def Fingerprint_dbus_property(self):
1471
970
return dbus.String(self.fingerprint)
1472
971
1473
972
# Host - property
1474
@dbus_service_property(_interface, signature="s",
1475
access="readwrite")
973
@dbus_service_property(_interface, signature=u"s",
974
access=u"readwrite")
1476
975
def Host_dbus_property(self, value=None):
1477
976
if value is None: # get
1478
977
return dbus.String(self.host)
1479
self.host = unicode(value)
978
self.host = value
979
# Emit D-Bus signal
980
self.PropertyChanged(dbus.String(u"Host"),
981
dbus.String(value, variant_level=1))
1480
982
1481
983
# Created - property
1482
@dbus_service_property(_interface, signature="s", access="read")
984
@dbus_service_property(_interface, signature=u"s", access=u"read")
1483
985
def Created_dbus_property(self):
1484
return datetime_to_dbus(self.created)
986
return dbus.String(self._datetime_to_dbus(self.created))
1485
987
1486
988
# LastEnabled - property
1487
@dbus_service_property(_interface, signature="s", access="read")
989
@dbus_service_property(_interface, signature=u"s", access=u"read")
1488
990
def LastEnabled_dbus_property(self):
1489
return datetime_to_dbus(self.last_enabled)
991
if self.last_enabled is None:
992
return dbus.String(u"")
993
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1490
994
1491
995
# Enabled - property
1492
@dbus_service_property(_interface, signature="b",
1493
access="readwrite")
996
@dbus_service_property(_interface, signature=u"b",
997
access=u"readwrite")
1494
998
def Enabled_dbus_property(self, value=None):
1495
999
if value is None: # get
1496
1000
return dbus.Boolean(self.enabled)
1500
1004
self.disable()
1501
1005
1502
1006
# LastCheckedOK - property
1503
@dbus_service_property(_interface, signature="s",
1504
access="readwrite")
1007
@dbus_service_property(_interface, signature=u"s",
1008
access=u"readwrite")
1505
1009
def LastCheckedOK_dbus_property(self, value=None):
1506
1010
if value is not None:
1507
1011
self.checked_ok()
1508
1012
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)
1013
if self.last_checked_ok is None:
1014
return dbus.String(u"")
1015
return dbus.String(self._datetime_to_dbus(self
1016
.last_checked_ok))
1526
1017
1527
1018
# Timeout - property
1528
@dbus_service_property(_interface, signature="t",
1529
access="readwrite")
1019
@dbus_service_property(_interface, signature=u"t",
1020
access=u"readwrite")
1530
1021
def Timeout_dbus_property(self, value=None):
1531
1022
if value is None: # get
1532
1023
return dbus.UInt64(self.timeout_milliseconds())
1533
old_timeout = self.timeout
1534
1024
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)
1025
# Emit D-Bus signal
1026
self.PropertyChanged(dbus.String(u"Timeout"),
1027
dbus.UInt64(value, variant_level=1))
1028
if getattr(self, u"disable_initiator_tag", None) is None:
1029
return
1030
# Reschedule timeout
1031
gobject.source_remove(self.disable_initiator_tag)
1032
self.disable_initiator_tag = None
1033
time_to_die = (self.
1034
_timedelta_to_milliseconds((self
1035
.last_checked_ok
1036
+ self.timeout)
1037
- datetime.datetime
1038
.utcnow()))
1039
if time_to_die <= 0:
1040
# The timeout has passed
1041
self.disable()
1042
else:
1043
self.disable_initiator_tag = (gobject.timeout_add
1044
(time_to_die, self.disable))
1559
1045
1560
1046
# Interval - property
1561
@dbus_service_property(_interface, signature="t",
1562
access="readwrite")
1047
@dbus_service_property(_interface, signature=u"t",
1048
access=u"readwrite")
1563
1049
def Interval_dbus_property(self, value=None):
1564
1050
if value is None: # get
1565
1051
return dbus.UInt64(self.interval_milliseconds())
1566
1052
self.interval = datetime.timedelta(0, 0, 0, value)
1567
if getattr(self, "checker_initiator_tag", None) is None:
1053
# Emit D-Bus signal
1054
self.PropertyChanged(dbus.String(u"Interval"),
1055
dbus.UInt64(value, variant_level=1))
1056
if getattr(self, u"checker_initiator_tag", None) is None:
1568
1057
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
1058
# Reschedule checker run
1059
gobject.source_remove(self.checker_initiator_tag)
1060
self.checker_initiator_tag = (gobject.timeout_add
1061
(value, self.start_checker))
1062
self.start_checker() # Start one now, too
1063
1576
1064
# Checker - property
1577
@dbus_service_property(_interface, signature="s",
1578
access="readwrite")
1065
@dbus_service_property(_interface, signature=u"s",
1066
access=u"readwrite")
1579
1067
def Checker_dbus_property(self, value=None):
1580
1068
if value is None: # get
1581
1069
return dbus.String(self.checker_command)
1582
self.checker_command = unicode(value)
1070
self.checker_command = value
1071
# Emit D-Bus signal
1072
self.PropertyChanged(dbus.String(u"Checker"),
1073
dbus.String(self.checker_command,
1074
variant_level=1))
1583
1075
1584
1076
# CheckerRunning - property
1585
@dbus_service_property(_interface, signature="b",
1586
access="readwrite")
1077
@dbus_service_property(_interface, signature=u"b",
1078
access=u"readwrite")
1587
1079
def CheckerRunning_dbus_property(self, value=None):
1588
1080
if value is None: # get
1589
1081
return dbus.Boolean(self.checker is not None)
1593
1085
self.stop_checker()
1594
1086
1595
1087
# ObjectPath - property
1596
@dbus_service_property(_interface, signature="o", access="read")
1088
@dbus_service_property(_interface, signature=u"o", access=u"read")
1597
1089
def ObjectPath_dbus_property(self):
1598
1090
return self.dbus_object_path # is already a dbus.ObjectPath
1599
1091
1600
1092
# Secret = property
1601
@dbus_service_property(_interface, signature="ay",
1602
access="write", byte_arrays=True)
1093
@dbus_service_property(_interface, signature=u"ay",
1094
access=u"write", byte_arrays=True)
1603
1095
def Secret_dbus_property(self, value):
1604
1096
self.secret = str(value)
1605
1097
1612
1104
self._pipe.send(('init', fpr, address))
1613
1105
if not self._pipe.recv():
1614
1106
raise KeyError()
1615
1107
1616
1108
def __getattribute__(self, name):
1617
if name == '_pipe':
1109
if(name == '_pipe'):
1618
1110
return super(ProxyClient, self).__getattribute__(name)
1619
1111
self._pipe.send(('getattr', name))
1620
1112
data = self._pipe.recv()
1625
1117
self._pipe.send(('funcall', name, args, kwargs))
1626
1118
return self._pipe.recv()[1]
1627
1119
return func
1628
1120
1629
1121
def __setattr__(self, name, value):
1630
if name == '_pipe':
1122
if(name == '_pipe'):
1631
1123
return super(ProxyClient, self).__setattr__(name, value)
1632
1124
self._pipe.send(('setattr', name, value))
1633
1125
1640
1132
1641
1133
def handle(self):
1642
1134
with contextlib.closing(self.server.child_pipe) as child_pipe:
1643
logger.info("TCP connection from: %s",
1135
logger.info(u"TCP connection from: %s",
1644
1136
unicode(self.client_address))
1645
logger.debug("Pipe FD: %d",
1137
logger.debug(u"Pipe FD: %d",
1646
1138
self.server.child_pipe.fileno())
1647
1139
1648
1140
session = (gnutls.connection
1649
1141
.ClientSession(self.request,
1650
1142
gnutls.connection
1651
1143
.X509Credentials()))
1652
1144
1653
1145
# Note: gnutls.connection.X509Credentials is really a
1654
1146
# generic GnuTLS certificate credentials object so long as
1655
1147
# no X.509 keys are added to it. Therefore, we can use it
1656
1148
# here despite using OpenPGP certificates.
1657
1658
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1659
# "+AES-256-CBC", "+SHA1",
1660
# "+COMP-NULL", "+CTYPE-OPENPGP",
1661
# "+DHE-DSS"))
1149
1150
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1151
# u"+AES-256-CBC", u"+SHA1",
1152
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1153
# u"+DHE-DSS"))
1662
1154
# Use a fallback default, since this MUST be set.
1663
1155
priority = self.server.gnutls_priority
1664
1156
if priority is None:
1665
priority = "NORMAL"
1157
priority = u"NORMAL"
1666
1158
(gnutls.library.functions
1667
1159
.gnutls_priority_set_direct(session._c_object,
1668
1160
priority, None))
1669
1161
1670
1162
# Start communication using the Mandos protocol
1671
1163
# Get protocol number
1672
1164
line = self.request.makefile().readline()
1673
logger.debug("Protocol version: %r", line)
1165
logger.debug(u"Protocol version: %r", line)
1674
1166
try:
1675
1167
if int(line.strip().split()[0]) > 1:
1676
1168
raise RuntimeError
1677
except (ValueError, IndexError, RuntimeError) as error:
1678
logger.error("Unknown protocol version: %s", error)
1169
except (ValueError, IndexError, RuntimeError), error:
1170
logger.error(u"Unknown protocol version: %s", error)
1679
1171
return
1680
1172
1681
1173
# Start GnuTLS connection
1682
1174
try:
1683
1175
session.handshake()
1684
except gnutls.errors.GNUTLSError as error:
1685
logger.warning("Handshake failed: %s", error)
1176
except gnutls.errors.GNUTLSError, error:
1177
logger.warning(u"Handshake failed: %s", error)
1686
1178
# Do not run session.bye() here: the session is not
1687
1179
# established. Just abandon the request.
1688
1180
return
1689
logger.debug("Handshake succeeded")
1690
1181
logger.debug(u"Handshake succeeded")
1182
1691
1183
approval_required = False
1692
1184
try:
1693
1185
try:
1694
1186
fpr = self.fingerprint(self.peer_certificate
1695
1187
(session))
1696
except (TypeError,
1697
gnutls.errors.GNUTLSError) as error:
1698
logger.warning("Bad certificate: %s", error)
1188
except (TypeError, gnutls.errors.GNUTLSError), error:
1189
logger.warning(u"Bad certificate: %s", error)
1699
1190
return
1700
logger.debug("Fingerprint: %s", fpr)
1701
1191
logger.debug(u"Fingerprint: %s", fpr)
1192
1702
1193
try:
1703
1194
client = ProxyClient(child_pipe, fpr,
1704
1195
self.client_address)
1712
1203
1713
1204
while True:
1714
1205
if not client.enabled:
1715
logger.info("Client %s is disabled",
1206
logger.warning(u"Client %s is disabled",
1716
1207
client.name)
1717
1208
if self.server.use_dbus:
1718
1209
# Emit D-Bus signal
1719
client.Rejected("Disabled")
1210
client.Rejected("Disabled")
1720
1211
return
1721
1212
1722
if client.approved or not client.approval_delay:
1213
if client._approved or not client.approval_delay:
1723
1214
#We are approved or approval is disabled
1724
1215
break
1725
elif client.approved is None:
1726
logger.info("Client %s needs approval",
1216
elif client._approved is None:
1217
logger.info(u"Client %s needs approval",
1727
1218
client.name)
1728
1219
if self.server.use_dbus:
1729
1220
# Emit D-Bus signal
1731
1222
client.approval_delay_milliseconds(),
1732
1223
client.approved_by_default)
1733
1224
else:
1734
logger.warning("Client %s was not approved",
1225
logger.warning(u"Client %s was not approved",
1735
1226
client.name)
1736
1227
if self.server.use_dbus:
1737
1228
# Emit D-Bus signal
1739
1230
return
1740
1231
1741
1232
#wait until timeout or approved
1233
#x = float(client._timedelta_to_milliseconds(delay))
1742
1234
time = datetime.datetime.now()
1743
1235
client.changedstate.acquire()
1744
client.changedstate.wait(
1745
float(timedelta_to_milliseconds(delay)
1746
/ 1000))
1236
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1747
1237
client.changedstate.release()
1748
1238
time2 = datetime.datetime.now()
1749
1239
if (time2 - time) >= delay:
1753
1243
client.name)
1754
1244
if self.server.use_dbus:
1755
1245
# Emit D-Bus signal
1756
client.Rejected("Approval timed out")
1246
client.Rejected("Timed out")
1757
1247
return
1758
1248
else:
1759
1249
break
1764
1254
while sent_size < len(client.secret):
1765
1255
try:
1766
1256
sent = session.send(client.secret[sent_size:])
1767
except gnutls.errors.GNUTLSError as error:
1768
logger.warning("gnutls send failed",
1769
exc_info=error)
1257
except (gnutls.errors.GNUTLSError), error:
1258
logger.warning("gnutls send failed")
1770
1259
return
1771
logger.debug("Sent: %d, remaining: %d",
1260
logger.debug(u"Sent: %d, remaining: %d",
1772
1261
sent, len(client.secret)
1773
1262
- (sent_size + sent))
1774
1263
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)
1264
1265
logger.info(u"Sending secret to %s", client.name)
1266
# bump the timeout as if seen
1267
client.checked_ok()
1779
1268
if self.server.use_dbus:
1780
1269
# Emit D-Bus signal
1781
1270
client.GotSecret()
1785
1274
client.approvals_pending -= 1
1786
1275
try:
1787
1276
session.bye()
1788
except gnutls.errors.GNUTLSError as error:
1789
logger.warning("GnuTLS bye failed",
1790
exc_info=error)
1277
except (gnutls.errors.GNUTLSError), error:
1278
logger.warning("GnuTLS bye failed")
1791
1279
1792
1280
@staticmethod
1793
1281
def peer_certificate(session):
1803
1291
.gnutls_certificate_get_peers
1804
1292
(session._c_object, ctypes.byref(list_size)))
1805
1293
if not bool(cert_list) and list_size.value != 0:
1806
raise gnutls.errors.GNUTLSError("error getting peer"
1807
" certificate")
1294
raise gnutls.errors.GNUTLSError(u"error getting peer"
1295
u" certificate")
1808
1296
if list_size.value == 0:
1809
1297
return None
1810
1298
cert = cert_list[0]
1836
1324
if crtverify.value != 0:
1837
1325
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1838
1326
raise (gnutls.errors.CertificateSecurityError
1839
("Verify failed"))
1327
(u"Verify failed"))
1840
1328
# New buffer for the fingerprint
1841
1329
buf = ctypes.create_string_buffer(20)
1842
1330
buf_len = ctypes.c_size_t()
1849
1337
# Convert the buffer to a Python bytestring
1850
1338
fpr = ctypes.string_at(buf, buf_len.value)
1851
1339
# Convert the bytestring to hexadecimal notation
1852
hex_fpr = binascii.hexlify(fpr).upper()
1340
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1853
1341
return hex_fpr
1854
1342
1855
1343
1858
1346
def sub_process_main(self, request, address):
1859
1347
try:
1860
1348
self.finish_request(request, address)
1861
except Exception:
1349
except:
1862
1350
self.handle_error(request, address)
1863
1351
self.close_request(request)
1864
1352
1865
1353
def process_request(self, request, address):
1866
1354
"""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
1355
multiprocessing.Process(target = self.sub_process_main,
1356
args = (request, address)).start()
1872
1357
1873
1358
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1874
1359
""" adds a pipe to the MixIn """
1878
1363
This function creates a new pipe in self.pipe
1879
1364
"""
1880
1365
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1881
1882
proc = MultiprocessingMixIn.process_request(self, request,
1883
client_address)
1366
1367
super(MultiprocessingMixInWithPipe,
1368
self).process_request(request, client_address)
1884
1369
self.child_pipe.close()
1885
self.add_pipe(parent_pipe, proc)
1886
1887
def add_pipe(self, parent_pipe, proc):
1370
self.add_pipe(parent_pipe)
1371
1372
def add_pipe(self, parent_pipe):
1888
1373
"""Dummy function; override as necessary"""
1889
raise NotImplementedError
1890
1374
pass
1891
1375
1892
1376
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1893
1377
socketserver.TCPServer, object):
1899
1383
use_ipv6: Boolean; to use IPv6 or not
1900
1384
"""
1901
1385
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
"""
1386
interface=None, use_ipv6=True):
1906
1387
self.interface = interface
1907
1388
if use_ipv6:
1908
1389
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
1390
socketserver.TCPServer.__init__(self, server_address,
1936
1391
RequestHandlerClass)
1937
1938
1392
def server_bind(self):
1939
1393
"""This overrides the normal server_bind() function
1940
1394
to bind to an interface if one was specified, and also NOT to
1941
1395
bind to an address or port if they were not specified."""
1942
1396
if self.interface is not None:
1943
1397
if SO_BINDTODEVICE is None:
1944
logger.error("SO_BINDTODEVICE does not exist;"
1945
" cannot bind to interface %s",
1398
logger.error(u"SO_BINDTODEVICE does not exist;"
1399
u" cannot bind to interface %s",
1946
1400
self.interface)
1947
1401
else:
1948
1402
try:
1949
1403
self.socket.setsockopt(socket.SOL_SOCKET,
1950
1404
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)
1405
str(self.interface
1406
+ u'\0'))
1407
except socket.error, error:
1408
if error[0] == errno.EPERM:
1409
logger.error(u"No permission to"
1410
u" bind to interface %s",
1411
self.interface)
1412
elif error[0] == errno.ENOPROTOOPT:
1413
logger.error(u"SO_BINDTODEVICE not available;"
1414
u" cannot bind to interface %s",
1415
self.interface)
1963
1416
else:
1964
1417
raise
1965
1418
# Only bind(2) the socket if we really need to.
1966
1419
if self.server_address[0] or self.server_address[1]:
1967
1420
if not self.server_address[0]:
1968
1421
if self.address_family == socket.AF_INET6:
1969
any_address = "::" # in6addr_any
1422
any_address = u"::" # in6addr_any
1970
1423
else:
1971
1424
any_address = socket.INADDR_ANY
1972
1425
self.server_address = (any_address,
1995
1448
"""
1996
1449
def __init__(self, server_address, RequestHandlerClass,
1997
1450
interface=None, use_ipv6=True, clients=None,
1998
gnutls_priority=None, use_dbus=True, socketfd=None):
1451
gnutls_priority=None, use_dbus=True):
1999
1452
self.enabled = False
2000
1453
self.clients = clients
2001
1454
if self.clients is None:
2002
self.clients = {}
1455
self.clients = set()
2003
1456
self.use_dbus = use_dbus
2004
1457
self.gnutls_priority = gnutls_priority
2005
1458
IPv6_TCPServer.__init__(self, server_address,
2006
1459
RequestHandlerClass,
2007
1460
interface = interface,
2008
use_ipv6 = use_ipv6,
2009
socketfd = socketfd)
1461
use_ipv6 = use_ipv6)
2010
1462
def server_activate(self):
2011
1463
if self.enabled:
2012
1464
return socketserver.TCPServer.server_activate(self)
2013
2014
1465
def enable(self):
2015
1466
self.enabled = True
2016
2017
def add_pipe(self, parent_pipe, proc):
1467
def add_pipe(self, parent_pipe):
2018
1468
# Call "handle_ipc" for both data and EOF events
2019
1469
gobject.io_add_watch(parent_pipe.fileno(),
2020
1470
gobject.IO_IN | gobject.IO_HUP,
2021
1471
functools.partial(self.handle_ipc,
2022
parent_pipe =
2023
parent_pipe,
2024
proc = proc))
2025
1472
parent_pipe = parent_pipe))
1473
2026
1474
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()
1475
client_object=None):
1476
condition_names = {
1477
gobject.IO_IN: u"IN", # There is data to read.
1478
gobject.IO_OUT: u"OUT", # Data can be written (without
1479
# blocking).
1480
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1481
gobject.IO_ERR: u"ERR", # Error condition.
1482
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1483
# broken, usually for pipes and
1484
# sockets).
1485
}
1486
conditions_string = ' | '.join(name
1487
for cond, name in
1488
condition_names.iteritems()
1489
if cond & condition)
1490
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1491
conditions_string)
1492
1493
# error or the other end of multiprocessing.Pipe has closed
1494
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2032
1495
return False
2033
1496
2034
1497
# Read a request from the child
2035
1498
request = parent_pipe.recv()
1499
logger.debug(u"IPC request: %s", repr(request))
2036
1500
command = request[0]
2037
1501
2038
1502
if command == 'init':
2039
1503
fpr = request[1]
2040
1504
address = request[2]
2041
1505
2042
for c in self.clients.itervalues():
1506
for c in self.clients:
2043
1507
if c.fingerprint == fpr:
2044
1508
client = c
2045
1509
break
2046
1510
else:
2047
logger.info("Client not found for fingerprint: %s, ad"
2048
"dress: %s", fpr, address)
1511
logger.warning(u"Client not found for fingerprint: %s, ad"
1512
u"dress: %s", fpr, address)
2049
1513
if self.use_dbus:
2050
1514
# Emit D-Bus signal
2051
mandos_dbus_service.ClientNotFound(fpr,
2052
address[0])
1515
mandos_dbus_service.ClientNotFound(fpr, address)
2053
1516
parent_pipe.send(False)
2054
1517
return False
2055
1518
2056
1519
gobject.io_add_watch(parent_pipe.fileno(),
2057
1520
gobject.IO_IN | gobject.IO_HUP,
2058
1521
functools.partial(self.handle_ipc,
2059
parent_pipe =
2060
parent_pipe,
2061
proc = proc,
2062
client_object =
2063
client))
1522
parent_pipe = parent_pipe,
1523
client_object = client))
2064
1524
parent_pipe.send(True)
2065
# remove the old hook in favor of the new above hook on
2066
# same fileno
1525
# remove the old hook in favor of the new above hook on same fileno
2067
1526
return False
2068
1527
if command == 'funcall':
2069
1528
funcname = request[1]
2070
1529
args = request[2]
2071
1530
kwargs = request[3]
2072
1531
2073
parent_pipe.send(('data', getattr(client_object,
2074
funcname)(*args,
2075
**kwargs)))
2076
1532
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1533
2077
1534
if command == 'getattr':
2078
1535
attrname = request[1]
2079
1536
if callable(client_object.__getattribute__(attrname)):
2080
1537
parent_pipe.send(('function',))
2081
1538
else:
2082
parent_pipe.send(('data', client_object
2083
.__getattribute__(attrname)))
1539
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2084
1540
2085
1541
if command == 'setattr':
2086
1542
attrname = request[1]
2087
1543
value = request[2]
2088
1544
setattr(client_object, attrname, value)
2089
1545
2090
1546
return True
2091
1547
2092
1548
2093
1549
def string_to_delta(interval):
2094
1550
"""Parse a string and return a datetime.timedelta
2095
1551
2096
>>> string_to_delta('7d')
1552
>>> string_to_delta(u'7d')
2097
1553
datetime.timedelta(7)
2098
>>> string_to_delta('60s')
1554
>>> string_to_delta(u'60s')
2099
1555
datetime.timedelta(0, 60)
2100
>>> string_to_delta('60m')
1556
>>> string_to_delta(u'60m')
2101
1557
datetime.timedelta(0, 3600)
2102
>>> string_to_delta('24h')
1558
>>> string_to_delta(u'24h')
2103
1559
datetime.timedelta(1)
2104
>>> string_to_delta('1w')
1560
>>> string_to_delta(u'1w')
2105
1561
datetime.timedelta(7)
2106
>>> string_to_delta('5m 30s')
1562
>>> string_to_delta(u'5m 30s')
2107
1563
datetime.timedelta(0, 330)
2108
1564
"""
2109
1565
timevalue = datetime.timedelta(0)
2111
1567
try:
2112
1568
suffix = unicode(s[-1])
2113
1569
value = int(s[:-1])
2114
if suffix == "d":
1570
if suffix == u"d":
2115
1571
delta = datetime.timedelta(value)
2116
elif suffix == "s":
1572
elif suffix == u"s":
2117
1573
delta = datetime.timedelta(0, value)
2118
elif suffix == "m":
1574
elif suffix == u"m":
2119
1575
delta = datetime.timedelta(0, 0, 0, 0, value)
2120
elif suffix == "h":
1576
elif suffix == u"h":
2121
1577
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
2122
elif suffix == "w":
1578
elif suffix == u"w":
2123
1579
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2124
1580
else:
2125
raise ValueError("Unknown suffix {0!r}"
2126
.format(suffix))
2127
except (ValueError, IndexError) as e:
2128
raise ValueError(*(e.args))
1581
raise ValueError(u"Unknown suffix %r" % suffix)
1582
except (ValueError, IndexError), e:
1583
raise ValueError(e.message)
2129
1584
timevalue += delta
2130
1585
return timevalue
2131
1586
2132
1587
1588
def if_nametoindex(interface):
1589
"""Call the C function if_nametoindex(), or equivalent
1590
1591
Note: This function cannot accept a unicode string."""
1592
global if_nametoindex
1593
try:
1594
if_nametoindex = (ctypes.cdll.LoadLibrary
1595
(ctypes.util.find_library(u"c"))
1596
.if_nametoindex)
1597
except (OSError, AttributeError):
1598
logger.warning(u"Doing if_nametoindex the hard way")
1599
def if_nametoindex(interface):
1600
"Get an interface index the hard way, i.e. using fcntl()"
1601
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1602
with contextlib.closing(socket.socket()) as s:
1603
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1604
struct.pack(str(u"16s16x"),
1605
interface))
1606
interface_index = struct.unpack(str(u"I"),
1607
ifreq[16:20])[0]
1608
return interface_index
1609
return if_nametoindex(interface)
1610
1611
2133
1612
def daemon(nochdir = False, noclose = False):
2134
1613
"""See daemon(3). Standard BSD Unix function.
2135
1614
2138
1617
sys.exit()
2139
1618
os.setsid()
2140
1619
if not nochdir:
2141
os.chdir("/")
1620
os.chdir(u"/")
2142
1621
if os.fork():
2143
1622
sys.exit()
2144
1623
if not noclose:
2145
1624
# Close all standard open file descriptors
2146
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1625
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2147
1626
if not stat.S_ISCHR(os.fstat(null).st_mode):
2148
1627
raise OSError(errno.ENODEV,
2149
"{0} not a character device"
2150
.format(os.devnull))
1628
u"%s not a character device"
1629
% os.path.devnull)
2151
1630
os.dup2(null, sys.stdin.fileno())
2152
1631
os.dup2(null, sys.stdout.fileno())
2153
1632
os.dup2(null, sys.stderr.fileno())
2160
1639
##################################################################
2161
1640
# Parsing of options, both command line and config file
2162
1641
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()
1642
parser = optparse.OptionParser(version = "%%prog %s" % version)
1643
parser.add_option("-i", u"--interface", type=u"string",
1644
metavar="IF", help=u"Bind to interface IF")
1645
parser.add_option("-a", u"--address", type=u"string",
1646
help=u"Address to listen for requests on")
1647
parser.add_option("-p", u"--port", type=u"int",
1648
help=u"Port number to receive requests on")
1649
parser.add_option("--check", action=u"store_true",
1650
help=u"Run self-test")
1651
parser.add_option("--debug", action=u"store_true",
1652
help=u"Debug mode; run in foreground and log to"
1653
u" terminal")
1654
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1655
help=u"Debug level for stdout output")
1656
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1657
u" priority string (see GnuTLS documentation)")
1658
parser.add_option("--servicename", type=u"string",
1659
metavar=u"NAME", help=u"Zeroconf service name")
1660
parser.add_option("--configdir", type=u"string",
1661
default=u"/etc/mandos", metavar=u"DIR",
1662
help=u"Directory to search for configuration"
1663
u" files")
1664
parser.add_option("--no-dbus", action=u"store_false",
1665
dest=u"use_dbus", help=u"Do not provide D-Bus"
1666
u" system bus interface")
1667
parser.add_option("--no-ipv6", action=u"store_false",
1668
dest=u"use_ipv6", help=u"Do not use IPv6")
1669
options = parser.parse_args()[0]
2205
1670
2206
1671
if options.check:
2207
1672
import doctest
2209
1674
sys.exit()
2210
1675
2211
1676
# 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",
1677
server_defaults = { u"interface": u"",
1678
u"address": u"",
1679
u"port": u"",
1680
u"debug": u"False",
1681
u"priority":
1682
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1683
u"servicename": u"Mandos",
1684
u"use_dbus": u"True",
1685
u"use_ipv6": u"True",
1686
u"debuglevel": u"",
2226
1687
}
2227
1688
2228
1689
# Parse config file for server-global settings
2229
1690
server_config = configparser.SafeConfigParser(server_defaults)
2230
1691
del server_defaults
2231
1692
server_config.read(os.path.join(options.configdir,
2232
"mandos.conf"))
1693
u"mandos.conf"))
2233
1694
# Convert the SafeConfigParser object to a dict
2234
1695
server_settings = server_config.defaults()
2235
1696
# 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",
1697
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1698
server_settings[option] = server_config.getboolean(u"DEFAULT",
2238
1699
option)
2239
1700
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"])
1701
server_settings["port"] = server_config.getint(u"DEFAULT",
1702
u"port")
2251
1703
del server_config
2252
1704
2253
1705
# Override the settings from the config file with command line
2254
1706
# 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"):
1707
for option in (u"interface", u"address", u"port", u"debug",
1708
u"priority", u"servicename", u"configdir",
1709
u"use_dbus", u"use_ipv6", u"debuglevel"):
2259
1710
value = getattr(options, option)
2260
1711
if value is not None:
2261
1712
server_settings[option] = value
2264
1715
for option in server_settings.keys():
2265
1716
if type(server_settings[option]) is str:
2266
1717
server_settings[option] = unicode(server_settings[option])
2267
# Debug implies foreground
2268
if server_settings["debug"]:
2269
server_settings["foreground"] = True
2270
1718
# Now we have our good server settings in "server_settings"
2271
1719
2272
1720
##################################################################
2273
1721
2274
1722
# 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":
1723
debug = server_settings[u"debug"]
1724
debuglevel = server_settings[u"debuglevel"]
1725
use_dbus = server_settings[u"use_dbus"]
1726
use_ipv6 = server_settings[u"use_ipv6"]
1727
1728
if server_settings[u"servicename"] != u"Mandos":
2293
1729
syslogger.setFormatter(logging.Formatter
2294
('Mandos ({0}) [%(process)d]:'
2295
' %(levelname)s: %(message)s'
2296
.format(server_settings
2297
["servicename"])))
1730
(u'Mandos (%s) [%%(process)d]:'
1731
u' %%(levelname)s: %%(message)s'
1732
% server_settings[u"servicename"]))
2298
1733
2299
1734
# 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"))
1735
client_defaults = { u"timeout": u"1h",
1736
u"interval": u"5m",
1737
u"checker": u"fping -q -- %%(host)s",
1738
u"host": u"",
1739
u"approval_delay": u"0s",
1740
u"approval_duration": u"1s",
1741
}
1742
client_config = configparser.SafeConfigParser(client_defaults)
1743
client_config.read(os.path.join(server_settings[u"configdir"],
1744
u"clients.conf"))
2304
1745
2305
1746
global mandos_dbus_service
2306
1747
mandos_dbus_service = None
2307
1748
2308
tcp_server = MandosServer((server_settings["address"],
2309
server_settings["port"]),
1749
tcp_server = MandosServer((server_settings[u"address"],
1750
server_settings[u"port"]),
2310
1751
ClientHandler,
2311
interface=(server_settings["interface"]
1752
interface=(server_settings[u"interface"]
2312
1753
or None),
2313
1754
use_ipv6=use_ipv6,
2314
1755
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)
1756
server_settings[u"priority"],
1757
use_dbus=use_dbus)
1758
pidfilename = u"/var/run/mandos.pid"
1759
try:
1760
pidfile = open(pidfilename, u"w")
1761
except IOError:
1762
logger.error(u"Could not open file %r", pidfilename)
2327
1763
2328
for name in ("_mandos", "mandos", "nobody"):
1764
try:
1765
uid = pwd.getpwnam(u"_mandos").pw_uid
1766
gid = pwd.getpwnam(u"_mandos").pw_gid
1767
except KeyError:
2329
1768
try:
2330
uid = pwd.getpwnam(name).pw_uid
2331
gid = pwd.getpwnam(name).pw_gid
2332
break
1769
uid = pwd.getpwnam(u"mandos").pw_uid
1770
gid = pwd.getpwnam(u"mandos").pw_gid
2333
1771
except KeyError:
2334
continue
2335
else:
2336
uid = 65534
2337
gid = 65534
1772
try:
1773
uid = pwd.getpwnam(u"nobody").pw_uid
1774
gid = pwd.getpwnam(u"nobody").pw_gid
1775
except KeyError:
1776
uid = 65534
1777
gid = 65534
2338
1778
try:
2339
1779
os.setgid(gid)
2340
1780
os.setuid(uid)
2341
except OSError as error:
2342
if error.errno != errno.EPERM:
1781
except OSError, error:
1782
if error[0] != errno.EPERM:
2343
1783
raise error
2344
1784
1785
if not debug and not debuglevel:
1786
syslogger.setLevel(logging.WARNING)
1787
console.setLevel(logging.WARNING)
1788
if debuglevel:
1789
level = getattr(logging, debuglevel.upper())
1790
syslogger.setLevel(level)
1791
console.setLevel(level)
1792
2345
1793
if debug:
2346
1794
# Enable all possible GnuTLS debugging
2347
1795
2351
1799
2352
1800
@gnutls.library.types.gnutls_log_func
2353
1801
def debug_gnutls(level, string):
2354
logger.debug("GnuTLS: %s", string[:-1])
1802
logger.debug(u"GnuTLS: %s", string[:-1])
2355
1803
2356
1804
(gnutls.library.functions
2357
1805
.gnutls_global_set_log_function(debug_gnutls))
2358
1806
2359
1807
# Redirect stdin so all checkers get /dev/null
2360
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1808
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2361
1809
os.dup2(null, sys.stdin.fileno())
2362
1810
if null > 2:
2363
1811
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()
1812
else:
1813
# No console logging
1814
logger.removeHandler(console)
1815
2373
1816
2374
1817
global main_loop
2375
1818
# From the Avahi example code
2376
DBusGMainLoop(set_as_default=True)
1819
DBusGMainLoop(set_as_default=True )
2377
1820
main_loop = gobject.MainLoop()
2378
1821
bus = dbus.SystemBus()
2379
1822
# End of Avahi example code
2380
1823
if use_dbus:
2381
1824
try:
2382
bus_name = dbus.service.BusName("se.recompile.Mandos",
1825
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2383
1826
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)
1827
except dbus.exceptions.NameExistsException, e:
1828
logger.error(unicode(e) + u", disabling D-Bus")
2389
1829
use_dbus = False
2390
server_settings["use_dbus"] = False
1830
server_settings[u"use_dbus"] = False
2391
1831
tcp_server.use_dbus = False
2392
1832
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)
1833
service = AvahiService(name = server_settings[u"servicename"],
1834
servicetype = u"_mandos._tcp",
1835
protocol = protocol, bus = bus)
2397
1836
if server_settings["interface"]:
2398
1837
service.interface = (if_nametoindex
2399
(str(server_settings["interface"])))
2400
1838
(str(server_settings[u"interface"])))
1839
1840
if not debug:
1841
# Close all input and output, do double fork, etc.
1842
daemon()
1843
2401
1844
global multiprocessing_manager
2402
1845
multiprocessing_manager = multiprocessing.Manager()
2403
1846
2404
1847
client_class = Client
2405
1848
if use_dbus:
2406
1849
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))
1850
def client_config_items(config, section):
1851
special_settings = {
1852
"approved_by_default":
1853
lambda: config.getboolean(section,
1854
"approved_by_default"),
1855
}
1856
for name, value in config.items(section):
2477
1857
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
1858
yield (name, special_settings[name]())
1859
except KeyError:
1860
yield (name, value)
1861
1862
tcp_server.clients.update(set(
1863
client_class(name = section,
1864
config= dict(client_config_items(
1865
client_config, section)))
1866
for section in client_config.sections()))
2502
1867
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)
1868
logger.warning(u"No clients defined")
1869
1870
try:
1871
with pidfile:
1872
pid = os.getpid()
1873
pidfile.write(str(pid) + "\n")
2514
1874
del pidfile
2515
del pidfilename
1875
except IOError:
1876
logger.error(u"Could not write to file %r with PID %d",
1877
pidfilename, pid)
1878
except NameError:
1879
# "pidfile" was never created
1880
pass
1881
del pidfilename
2516
1882
1883
if not debug:
1884
signal.signal(signal.SIGINT, signal.SIG_IGN)
2517
1885
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2518
1886
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2519
1887
2520
1888
if use_dbus:
2521
@alternate_dbus_interfaces({"se.recompile.Mandos":
2522
"se.bsnet.fukt.Mandos"})
2523
class MandosDBusService(DBusObjectWithProperties):
1889
class MandosDBusService(dbus.service.Object):
2524
1890
"""A D-Bus proxy object"""
2525
1891
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")
1892
dbus.service.Object.__init__(self, bus, u"/")
1893
_interface = u"se.bsnet.fukt.Mandos"
1894
1895
@dbus.service.signal(_interface, signature=u"o")
2536
1896
def ClientAdded(self, objpath):
2537
1897
"D-Bus signal"
2538
1898
pass
2539
1899
2540
@dbus.service.signal(_interface, signature="ss")
1900
@dbus.service.signal(_interface, signature=u"ss")
2541
1901
def ClientNotFound(self, fingerprint, address):
2542
1902
"D-Bus signal"
2543
1903
pass
2544
1904
2545
@dbus.service.signal(_interface, signature="os")
1905
@dbus.service.signal(_interface, signature=u"os")
2546
1906
def ClientRemoved(self, objpath, name):
2547
1907
"D-Bus signal"
2548
1908
pass
2549
1909
2550
@dbus.service.method(_interface, out_signature="ao")
1910
@dbus.service.method(_interface, out_signature=u"ao")
2551
1911
def GetAllClients(self):
2552
1912
"D-Bus method"
2553
1913
return dbus.Array(c.dbus_object_path
2554
for c in
2555
tcp_server.clients.itervalues())
1914
for c in tcp_server.clients)
2556
1915
2557
1916
@dbus.service.method(_interface,
2558
out_signature="a{oa{sv}}")
1917
out_signature=u"a{oa{sv}}")
2559
1918
def GetAllClientsWithProperties(self):
2560
1919
"D-Bus method"
2561
1920
return dbus.Dictionary(
2562
((c.dbus_object_path, c.GetAll(""))
2563
for c in tcp_server.clients.itervalues()),
2564
signature="oa{sv}")
1921
((c.dbus_object_path, c.GetAll(u""))
1922
for c in tcp_server.clients),
1923
signature=u"oa{sv}")
2565
1924
2566
@dbus.service.method(_interface, in_signature="o")
1925
@dbus.service.method(_interface, in_signature=u"o")
2567
1926
def RemoveClient(self, object_path):
2568
1927
"D-Bus method"
2569
for c in tcp_server.clients.itervalues():
1928
for c in tcp_server.clients:
2570
1929
if c.dbus_object_path == object_path:
2571
del tcp_server.clients[c.name]
1930
tcp_server.clients.remove(c)
2572
1931
c.remove_from_connection()
2573
1932
# Don't signal anything except ClientRemoved
2574
1933
c.disable(quiet=True)
2585
1944
"Cleanup function; run on exit"
2586
1945
service.cleanup()
2587
1946
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
1947
while tcp_server.clients:
2644
name, client = tcp_server.clients.popitem()
1948
client = tcp_server.clients.pop()
2645
1949
if use_dbus:
2646
1950
client.remove_from_connection()
1951
client.disable_hook = None
2647
1952
# Don't signal anything except ClientRemoved
2648
1953
client.disable(quiet=True)
2649
1954
if use_dbus:
2650
1955
# Emit D-Bus signal
2651
mandos_dbus_service.ClientRemoved(client
2652
.dbus_object_path,
1956
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2653
1957
client.name)
2654
client_settings.clear()
2655
1958
2656
1959
atexit.register(cleanup)
2657
1960
2658
for client in tcp_server.clients.itervalues():
1961
for client in tcp_server.clients:
2659
1962
if use_dbus:
2660
1963
# Emit D-Bus signal
2661
1964
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2662
# Need to initiate checking of clients
2663
if client.enabled:
2664
client.init_checker()
1965
client.enable()
2665
1966
2666
1967
tcp_server.enable()
2667
1968
tcp_server.server_activate()
2669
1970
# Find out what port we got
2670
1971
service.port = tcp_server.socket.getsockname()[1]
2671
1972
if use_ipv6:
2672
logger.info("Now listening on address %r, port %d,"
2673
" flowinfo %d, scope_id %d",
2674
*tcp_server.socket.getsockname())
1973
logger.info(u"Now listening on address %r, port %d,"
1974
" flowinfo %d, scope_id %d"
1975
% tcp_server.socket.getsockname())
2675
1976
else: # IPv4
2676
logger.info("Now listening on address %r, port %d",
2677
*tcp_server.socket.getsockname())
1977
logger.info(u"Now listening on address %r, port %d"
1978
% tcp_server.socket.getsockname())
2678
1979
2679
1980
#service.interface = tcp_server.socket.getsockname()[3]
2680
1981
2682
1983
# From the Avahi example code
2683
1984
try:
2684
1985
service.activate()
2685
except dbus.exceptions.DBusException as error:
2686
logger.critical("D-Bus Exception", exc_info=error)
1986
except dbus.exceptions.DBusException, error:
1987
logger.critical(u"DBusException: %s", error)
2687
1988
cleanup()
2688
1989
sys.exit(1)
2689
1990
# End of Avahi example code
2693
1994
(tcp_server.handle_request
2694
1995
(*args[2:], **kwargs) or True))
2695
1996
2696
logger.debug("Starting main loop")
1997
logger.debug(u"Starting main loop")
2697
1998
main_loop.run()
2698
except AvahiError as error:
2699
logger.critical("Avahi Error", exc_info=error)
1999
except AvahiError, error:
2000
logger.critical(u"AvahiError: %s", error)
2700
2001
cleanup()
2701
2002
sys.exit(1)
2702
2003
except KeyboardInterrupt:
2703
2004
if debug:
2704
print("", file=sys.stderr)
2705
logger.debug("Server received KeyboardInterrupt")
2706
logger.debug("Server exiting")
2005
print >> sys.stderr
2006
logger.debug(u"Server received KeyboardInterrupt")
2007
logger.debug(u"Server exiting")
2707
2008
# Must run before the D-Bus bus name gets deregistered
2708
2009
cleanup()
2709
2010
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0