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- Committer: teddy at bsnet
- Date: 2010-08-23 19:23:15 UTC
- mto: (24.1.154 mandos)
- mto: This revision was merged to the branch mainline in revision 421.
- Revision ID: teddy@fukt.bsnet.se-20100823192315-pefgye0l6cavcejs
* debian/control (mandos/Depends): Added "python-urwid".
* mandos (Client.approved_by_default): Changed default to "True".
(Client.approved_delay): Changed default to "0s".
(ClientDBus.GotSecret, ClientDBus.Rejected,
ClientDBus.NeedApproval): Emit "PropertyChanged" signal for the
"approved_pending" property.
* mandos (Client.approved_by_default): Changed default to "True".
(Client.approved_delay): Changed default to "0s".
(ClientDBus.GotSecret, ClientDBus.Rejected,
ClientDBus.NeedApproval): Emit "PropertyChanged" signal for the
"approved_pending" property.
- files removed:
- DBUS-API
- debian/source
- network-hooks.d
- files modified:
- .bzrignore
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 Björn Påhlsson
14
# Copyright © 2008,2009 Teddy Hogeborn
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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
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# along with this program. If not, see
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29
# <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.Logger(u'mandos')
95
87
syslogger = (logging.handlers.SysLogHandler
96
88
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
98
99
try:
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
103
except (OSError, AttributeError):
104
def if_nametoindex(interface):
105
"Get an interface index the hard way, i.e. using fcntl()"
106
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
107
with contextlib.closing(socket.socket()) as s:
108
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
112
ifreq[16:20])[0]
113
return interface_index
114
115
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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:'
129
' %(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
139
class PGPEngine(object):
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
141
def __init__(self):
142
self.gnupg = GnuPGInterface.GnuPG()
143
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
144
self.gnupg = GnuPGInterface.GnuPG()
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self.gnupg.options.meta_interactive = False
146
self.gnupg.options.homedir = self.tempdir
147
self.gnupg.options.extra_args.extend(['--force-mdc',
148
'--quiet',
149
'--no-use-agent'])
150
151
def __enter__(self):
152
return self
153
154
def __exit__(self, exc_type, exc_value, traceback):
155
self._cleanup()
156
return False
157
158
def __del__(self):
159
self._cleanup()
160
161
def _cleanup(self):
162
if self.tempdir is not None:
163
# Delete contents of tempdir
164
for root, dirs, files in os.walk(self.tempdir,
165
topdown = False):
166
for filename in files:
167
os.remove(os.path.join(root, filename))
168
for dirname in dirs:
169
os.rmdir(os.path.join(root, dirname))
170
# Remove tempdir
171
os.rmdir(self.tempdir)
172
self.tempdir = None
173
174
def password_encode(self, password):
175
# Passphrase can not be empty and can not contain newlines or
176
# NUL bytes. So we prefix it and hex encode it.
177
return b"mandos" + binascii.hexlify(password)
178
179
def encrypt(self, data, password):
180
self.gnupg.passphrase = self.password_encode(password)
181
with open(os.devnull, "w") as devnull:
182
try:
183
proc = self.gnupg.run(['--symmetric'],
184
create_fhs=['stdin', 'stdout'],
185
attach_fhs={'stderr': devnull})
186
with contextlib.closing(proc.handles['stdin']) as f:
187
f.write(data)
188
with contextlib.closing(proc.handles['stdout']) as f:
189
ciphertext = f.read()
190
proc.wait()
191
except IOError as e:
192
raise PGPError(e)
193
self.gnupg.passphrase = None
194
return ciphertext
195
196
def decrypt(self, data, password):
197
self.gnupg.passphrase = self.password_encode(password)
198
with open(os.devnull, "w") as devnull:
199
try:
200
proc = self.gnupg.run(['--decrypt'],
201
create_fhs=['stdin', 'stdout'],
202
attach_fhs={'stderr': devnull})
203
with contextlib.closing(proc.handles['stdin']) as f:
204
f.write(data)
205
with contextlib.closing(proc.handles['stdout']) as f:
206
decrypted_plaintext = f.read()
207
proc.wait()
208
except IOError as e:
209
raise PGPError(e)
210
self.gnupg.passphrase = None
211
return decrypted_plaintext
212
89
address = "/dev/log"))
90
syslogger.setFormatter(logging.Formatter
91
(u'Mandos [%(process)d]: %(levelname)s:'
92
u' %(message)s'))
93
logger.addHandler(syslogger)
94
95
console = logging.StreamHandler()
96
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
97
u' %(levelname)s:'
98
u' %(message)s'))
99
logger.addHandler(console)
100
101
multiprocessing_manager = multiprocessing.Manager()
213
102
214
103
class AvahiError(Exception):
215
104
def __init__(self, value, *args, **kwargs):
231
120
Attributes:
232
121
interface: integer; avahi.IF_UNSPEC or an interface index.
233
122
Used to optionally bind to the specified interface.
234
name: string; Example: 'Mandos'
235
type: string; Example: '_mandos._tcp'.
123
name: string; Example: u'Mandos'
124
type: string; Example: u'_mandos._tcp'.
236
125
See <http://www.dns-sd.org/ServiceTypes.html>
237
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port: integer; what port to announce
238
127
TXT: list of strings; TXT record for the service
245
134
server: D-Bus Server
246
135
bus: dbus.SystemBus()
247
136
"""
248
249
137
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
250
138
servicetype = None, port = None, TXT = None,
251
domain = "", host = "", max_renames = 32768,
139
domain = u"", host = u"", max_renames = 32768,
252
140
protocol = avahi.PROTO_UNSPEC, bus = None):
253
141
self.interface = interface
254
142
self.name = name
263
151
self.group = None # our entry group
264
152
self.server = None
265
153
self.bus = bus
266
self.entry_group_state_changed_match = None
267
268
154
def rename(self):
269
155
"""Derived from the Avahi example code"""
270
156
if self.rename_count >= self.max_renames:
271
logger.critical("No suitable Zeroconf service name found"
272
" after %i retries, exiting.",
157
logger.critical(u"No suitable Zeroconf service name found"
158
u" after %i retries, exiting.",
273
159
self.rename_count)
274
raise AvahiServiceError("Too many renames")
275
self.name = unicode(self.server
276
.GetAlternativeServiceName(self.name))
277
logger.info("Changing Zeroconf service name to %r ...",
278
self.name)
160
raise AvahiServiceError(u"Too many renames")
161
self.name = self.server.GetAlternativeServiceName(self.name)
162
logger.info(u"Changing Zeroconf service name to %r ...",
163
unicode(self.name))
164
syslogger.setFormatter(logging.Formatter
165
(u'Mandos (%s) [%%(process)d]:'
166
u' %%(levelname)s: %%(message)s'
167
% self.name))
279
168
self.remove()
280
try:
281
self.add()
282
except dbus.exceptions.DBusException as error:
283
logger.critical("D-Bus Exception", exc_info=error)
284
self.cleanup()
285
os._exit(1)
169
self.add()
286
170
self.rename_count += 1
287
288
171
def remove(self):
289
172
"""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
173
if self.group is not None:
294
174
self.group.Reset()
295
296
175
def add(self):
297
176
"""Derived from the Avahi example code"""
298
self.remove()
299
177
if self.group is None:
300
178
self.group = dbus.Interface(
301
179
self.bus.get_object(avahi.DBUS_NAME,
302
180
self.server.EntryGroupNew()),
303
181
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' ...",
182
self.group.connect_to_signal('StateChanged',
183
self
184
.entry_group_state_changed)
185
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
308
186
self.name, self.type)
309
187
self.group.AddService(
310
188
self.interface,
315
193
dbus.UInt16(self.port),
316
194
avahi.string_array_to_txt_array(self.TXT))
317
195
self.group.Commit()
318
319
196
def entry_group_state_changed(self, state, error):
320
197
"""Derived from the Avahi example code"""
321
logger.debug("Avahi entry group state change: %i", state)
198
logger.debug(u"Avahi state change: %i", state)
322
199
323
200
if state == avahi.ENTRY_GROUP_ESTABLISHED:
324
logger.debug("Zeroconf service established.")
201
logger.debug(u"Zeroconf service established.")
325
202
elif state == avahi.ENTRY_GROUP_COLLISION:
326
logger.info("Zeroconf service name collision.")
203
logger.warning(u"Zeroconf service name collision.")
327
204
self.rename()
328
205
elif state == avahi.ENTRY_GROUP_FAILURE:
329
logger.critical("Avahi: Error in group state changed %s",
206
logger.critical(u"Avahi: Error in group state changed %s",
330
207
unicode(error))
331
raise AvahiGroupError("State changed: {0!s}"
332
.format(error))
333
208
raise AvahiGroupError(u"State changed: %s"
209
% unicode(error))
334
210
def cleanup(self):
335
211
"""Derived from the Avahi example code"""
336
212
if self.group is not None:
337
try:
338
self.group.Free()
339
except (dbus.exceptions.UnknownMethodException,
340
dbus.exceptions.DBusException):
341
pass
213
self.group.Free()
342
214
self.group = None
343
self.remove()
344
345
def server_state_changed(self, state, error=None):
215
def server_state_changed(self, state):
346
216
"""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()
217
if state == avahi.SERVER_COLLISION:
218
logger.error(u"Zeroconf server name collision")
219
self.remove()
362
220
elif state == avahi.SERVER_RUNNING:
363
221
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
222
def activate(self):
371
223
"""Derived from the Avahi example code"""
372
224
if self.server is None:
373
225
self.server = dbus.Interface(
374
226
self.bus.get_object(avahi.DBUS_NAME,
375
avahi.DBUS_PATH_SERVER,
376
follow_name_owner_changes=True),
227
avahi.DBUS_PATH_SERVER),
377
228
avahi.DBUS_INTERFACE_SERVER)
378
self.server.connect_to_signal("StateChanged",
229
self.server.connect_to_signal(u"StateChanged",
379
230
self.server_state_changed)
380
231
self.server_state_changed(self.server.GetState())
381
232
382
233
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
234
class Client(object):
402
235
"""A representation of a client host served by this server.
403
236
404
237
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
238
name: string; from the config file, used in log messages and
239
D-Bus identifiers
240
fingerprint: string (40 or 32 hexadecimal digits); used to
241
uniquely identify the client
242
secret: bytestring; sent verbatim (over TLS) to client
243
host: string; available for use by the checker command
244
created: datetime.datetime(); (UTC) object creation
245
last_enabled: datetime.datetime(); (UTC)
246
enabled: bool()
247
last_checked_ok: datetime.datetime(); (UTC) or None
248
timeout: datetime.timedelta(); How long from last_checked_ok
249
until this client is disabled
250
interval: datetime.timedelta(); How often to start a new checker
251
disable_hook: If set, called by disable() as disable_hook(self)
408
252
checker: subprocess.Popen(); a running checker process used
409
253
to see if the client lives.
410
254
'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
255
checker_initiator_tag: a gobject event source tag, or None
256
disable_initiator_tag: - '' -
257
checker_callback_tag: - '' -
258
checker_command: string; External command which is run to check if
259
client lives. %() expansions are done at
414
260
runtime with vars(self) as dict, so that for
415
261
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
262
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
263
approved_delay: datetime.timedelta(); Time to wait for approval
264
_approved: bool(); 'None' if not yet approved/disapproved
265
approved_duration: datetime.timedelta(); Duration of one approval
442
266
"""
443
267
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
}
268
@staticmethod
269
def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
459
274
460
275
def timeout_milliseconds(self):
461
276
"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)
277
return self._timedelta_to_milliseconds(self.timeout)
467
278
468
279
def interval_milliseconds(self):
469
280
"Return the 'interval' attribute in milliseconds"
470
return timedelta_to_milliseconds(self.interval)
471
472
def approval_delay_milliseconds(self):
473
return timedelta_to_milliseconds(self.approval_delay)
474
475
@staticmethod
476
def config_parser(config):
477
"""Construct a new dict of client settings of this form:
478
{ client_name: {setting_name: value, ...}, ...}
479
with exceptions for any special settings as defined above.
480
NOTE: Must be a pure function. Must return the same result
481
value given the same arguments.
482
"""
483
settings = {}
484
for client_name in config.sections():
485
section = dict(config.items(client_name))
486
client = settings[client_name] = {}
487
488
client["host"] = section["host"]
489
# Reformat values from string types to Python types
490
client["approved_by_default"] = config.getboolean(
491
client_name, "approved_by_default")
492
client["enabled"] = config.getboolean(client_name,
493
"enabled")
494
495
client["fingerprint"] = (section["fingerprint"].upper()
496
.replace(" ", ""))
497
if "secret" in section:
498
client["secret"] = section["secret"].decode("base64")
499
elif "secfile" in section:
500
with open(os.path.expanduser(os.path.expandvars
501
(section["secfile"])),
502
"rb") as secfile:
503
client["secret"] = secfile.read()
504
else:
505
raise TypeError("No secret or secfile for section {0}"
506
.format(section))
507
client["timeout"] = string_to_delta(section["timeout"])
508
client["extended_timeout"] = string_to_delta(
509
section["extended_timeout"])
510
client["interval"] = string_to_delta(section["interval"])
511
client["approval_delay"] = string_to_delta(
512
section["approval_delay"])
513
client["approval_duration"] = string_to_delta(
514
section["approval_duration"])
515
client["checker_command"] = section["checker"]
516
client["last_approval_request"] = None
517
client["last_checked_ok"] = None
518
client["last_checker_status"] = -2
519
520
return settings
521
522
def __init__(self, settings, name = None):
281
return self._timedelta_to_milliseconds(self.interval)
282
283
def approved_delay_milliseconds(self):
284
return self._timedelta_to_milliseconds(self.approved_delay)
285
286
def __init__(self, name = None, disable_hook=None, config=None):
287
"""Note: the 'checker' key in 'config' sets the
288
'checker_command' attribute and *not* the 'checker'
289
attribute."""
523
290
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)
291
if config is None:
292
config = {}
293
logger.debug(u"Creating client %r", self.name)
539
294
# Uppercase and remove spaces from fingerprint for later
540
295
# comparison purposes with return value from the fingerprint()
541
296
# 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
297
self.fingerprint = (config[u"fingerprint"].upper()
298
.replace(u" ", u""))
299
logger.debug(u" Fingerprint: %s", self.fingerprint)
300
if u"secret" in config:
301
self.secret = config[u"secret"].decode(u"base64")
302
elif u"secfile" in config:
303
with open(os.path.expanduser(os.path.expandvars
304
(config[u"secfile"])),
305
"rb") as secfile:
306
self.secret = secfile.read()
307
else:
308
#XXX Need to allow secret on demand!
309
raise TypeError(u"No secret or secfile for client %s"
310
% self.name)
311
self.host = config.get(u"host", u"")
312
self.created = datetime.datetime.utcnow()
313
self.enabled = False
314
self.last_enabled = None
315
self.last_checked_ok = None
316
self.timeout = string_to_delta(config[u"timeout"])
317
self.interval = string_to_delta(config[u"interval"])
318
self.disable_hook = disable_hook
547
319
self.checker = None
548
320
self.checker_initiator_tag = None
549
321
self.disable_initiator_tag = None
550
322
self.checker_callback_tag = None
323
self.checker_command = config[u"checker"]
551
324
self.current_checker_command = None
552
self.approved = None
325
self.last_connect = None
553
326
self.approvals_pending = 0
554
self.changedstate = (multiprocessing_manager
555
.Condition(multiprocessing_manager
556
.Lock()))
557
self.client_structure = [attr for attr in
558
self.__dict__.iterkeys()
559
if not attr.startswith("_")]
560
self.client_structure.append("client_structure")
561
562
for name, t in inspect.getmembers(type(self),
563
lambda obj:
564
isinstance(obj,
565
property)):
566
if not name.startswith("_"):
567
self.client_structure.append(name)
568
569
# Send notice to process children that client state has changed
327
self._approved = None
328
self.approved_by_default = config.get(u"approved_by_default",
329
True)
330
self.approved_delay = string_to_delta(
331
config[u"approved_delay"])
332
self.approved_duration = string_to_delta(
333
config[u"approved_duration"])
334
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
335
570
336
def send_changedstate(self):
571
with self.changedstate:
572
self.changedstate.notify_all()
573
337
self.changedstate.acquire()
338
self.changedstate.notify_all()
339
self.changedstate.release()
340
574
341
def enable(self):
575
342
"""Start this client's checker and timeout hooks"""
576
if getattr(self, "enabled", False):
343
if getattr(self, u"enabled", False):
577
344
# Already enabled
578
345
return
579
self.expires = datetime.datetime.utcnow() + self.timeout
580
self.enabled = True
346
self.send_changedstate()
581
347
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
348
# Schedule a new checker to be started an 'interval' from now,
610
349
# and every interval from then on.
611
if self.checker_initiator_tag is not None:
612
gobject.source_remove(self.checker_initiator_tag)
613
350
self.checker_initiator_tag = (gobject.timeout_add
614
351
(self.interval_milliseconds(),
615
352
self.start_checker))
616
353
# 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
354
self.disable_initiator_tag = (gobject.timeout_add
620
355
(self.timeout_milliseconds(),
621
356
self.disable))
357
self.enabled = True
622
358
# Also start a new checker *right now*.
623
359
self.start_checker()
624
360
361
def disable(self, quiet=True):
362
"""Disable this client."""
363
if not getattr(self, "enabled", False):
364
return False
365
if not quiet:
366
self.send_changedstate()
367
if not quiet:
368
logger.info(u"Disabling client %s", self.name)
369
if getattr(self, u"disable_initiator_tag", False):
370
gobject.source_remove(self.disable_initiator_tag)
371
self.disable_initiator_tag = None
372
if getattr(self, u"checker_initiator_tag", False):
373
gobject.source_remove(self.checker_initiator_tag)
374
self.checker_initiator_tag = None
375
self.stop_checker()
376
if self.disable_hook:
377
self.disable_hook(self)
378
self.enabled = False
379
# Do not run this again if called by a gobject.timeout_add
380
return False
381
382
def __del__(self):
383
self.disable_hook = None
384
self.disable()
385
625
386
def checker_callback(self, pid, condition, command):
626
387
"""The checker has completed, so take appropriate actions."""
627
388
self.checker_callback_tag = None
628
389
self.checker = None
629
390
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",
391
exitstatus = os.WEXITSTATUS(condition)
392
if exitstatus == 0:
393
logger.info(u"Checker for %(name)s succeeded",
633
394
vars(self))
634
395
self.checked_ok()
635
396
else:
636
logger.info("Checker for %(name)s failed",
397
logger.info(u"Checker for %(name)s failed",
637
398
vars(self))
638
399
else:
639
self.last_checker_status = -1
640
logger.warning("Checker for %(name)s crashed?",
400
logger.warning(u"Checker for %(name)s crashed?",
641
401
vars(self))
642
402
643
403
def checked_ok(self):
644
"""Assert that the client has been seen, alive and well."""
404
"""Bump up the timeout for this client.
405
406
This should only be called when the client has been seen,
407
alive and well.
408
"""
645
409
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()
410
gobject.source_remove(self.disable_initiator_tag)
411
self.disable_initiator_tag = (gobject.timeout_add
412
(self.timeout_milliseconds(),
413
self.disable))
664
414
665
415
def start_checker(self):
666
416
"""Start a new checker subprocess if one is not running.
668
418
If a checker already exists, leave it running and do
669
419
nothing."""
670
420
# 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
421
# did that, then if a checker (for some reason) started
422
# running slowly and taking more than 'interval' time, the
423
# client would inevitably timeout, since no checker would get
424
# a chance to run to completion. If we instead leave running
675
425
# checkers alone, the checker would have to take more time
676
426
# than 'timeout' for the client to be disabled, which is as it
677
427
# should be.
679
429
# If a checker exists, make sure it is not a zombie
680
430
try:
681
431
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
682
except (AttributeError, OSError) as error:
432
except (AttributeError, OSError), error:
683
433
if (isinstance(error, OSError)
684
434
and error.errno != errno.ECHILD):
685
435
raise error
686
436
else:
687
437
if pid:
688
logger.warning("Checker was a zombie")
438
logger.warning(u"Checker was a zombie")
689
439
gobject.source_remove(self.checker_callback_tag)
690
440
self.checker_callback(pid, status,
691
441
self.current_checker_command)
692
442
# Start a new checker if needed
693
443
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
444
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
445
# In case checker_command has exactly one % operator
446
command = self.checker_command % self.host
447
except TypeError:
448
# Escape attributes for the shell
449
escaped_attrs = dict((key,
450
re.escape(unicode(str(val),
451
errors=
452
u'replace')))
453
for key, val in
454
vars(self).iteritems())
455
try:
456
command = self.checker_command % escaped_attrs
457
except TypeError, error:
458
logger.error(u'Could not format string "%s":'
459
u' %s', self.checker_command, error)
460
return True # Try again later
705
461
self.current_checker_command = command
706
462
try:
707
logger.info("Starting checker %r for %s",
463
logger.info(u"Starting checker %r for %s",
708
464
command, self.name)
709
465
# We don't need to redirect stdout and stderr, since
710
466
# in normal mode, that is already done by daemon(),
712
468
# always replaced by /dev/null.)
713
469
self.checker = subprocess.Popen(command,
714
470
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)
471
shell=True, cwd=u"/")
472
self.checker_callback_tag = (gobject.child_watch_add
473
(self.checker.pid,
474
self.checker_callback,
475
data=command))
476
# The checker may have completed before the gobject
477
# watch was added. Check for this.
478
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
479
if pid:
480
gobject.source_remove(self.checker_callback_tag)
481
self.checker_callback(pid, status, command)
482
except OSError, error:
483
logger.error(u"Failed to start subprocess: %s",
484
error)
729
485
# Re-run this periodically if run by gobject.timeout_add
730
486
return True
731
487
734
490
if self.checker_callback_tag:
735
491
gobject.source_remove(self.checker_callback_tag)
736
492
self.checker_callback_tag = None
737
if getattr(self, "checker", None) is None:
493
if getattr(self, u"checker", None) is None:
738
494
return
739
logger.debug("Stopping checker for %(name)s", vars(self))
495
logger.debug(u"Stopping checker for %(name)s", vars(self))
740
496
try:
741
self.checker.terminate()
497
os.kill(self.checker.pid, signal.SIGTERM)
742
498
#time.sleep(0.5)
743
499
#if self.checker.poll() is None:
744
# self.checker.kill()
745
except OSError as error:
500
# os.kill(self.checker.pid, signal.SIGKILL)
501
except OSError, error:
746
502
if error.errno != errno.ESRCH: # No such process
747
503
raise
748
504
self.checker = None
749
505
750
751
def dbus_service_property(dbus_interface, signature="v",
752
access="readwrite", byte_arrays=False):
506
def dbus_service_property(dbus_interface, signature=u"v",
507
access=u"readwrite", byte_arrays=False):
753
508
"""Decorators for marking methods of a DBusObjectWithProperties to
754
509
become properties on the D-Bus.
755
510
762
517
"""
763
518
# Encoding deeply encoded byte arrays is not supported yet by the
764
519
# "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))
520
if byte_arrays and signature != u"ay":
521
raise ValueError(u"Byte arrays not supported for non-'ay'"
522
u" signature %r" % signature)
768
523
def decorator(func):
769
524
func._dbus_is_property = True
770
525
func._dbus_interface = dbus_interface
771
526
func._dbus_signature = signature
772
527
func._dbus_access = access
773
528
func._dbus_name = func.__name__
774
if func._dbus_name.endswith("_dbus_property"):
529
if func._dbus_name.endswith(u"_dbus_property"):
775
530
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
531
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
814
532
return func
815
533
return decorator
816
534
836
554
837
555
class DBusObjectWithProperties(dbus.service.Object):
838
556
"""A D-Bus object with properties.
839
557
840
558
Classes inheriting from this can use the dbus_service_property
841
559
decorator to expose methods as D-Bus properties. It exposes the
842
560
standard Get(), Set(), and GetAll() methods on the D-Bus.
843
561
"""
844
562
845
563
@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)
564
def _is_dbus_property(obj):
565
return getattr(obj, u"_dbus_is_property", False)
854
566
855
def _get_all_dbus_things(self, thing):
567
def _get_all_dbus_properties(self):
856
568
"""Returns a generator of (name, attribute) pairs
857
569
"""
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)))
570
return ((prop._dbus_name, prop)
571
for name, prop in
572
inspect.getmembers(self, self._is_dbus_property))
865
573
866
574
def _get_dbus_property(self, interface_name, property_name):
867
575
"""Returns a bound method if one exists which is a D-Bus
868
576
property with the specified name and interface.
869
577
"""
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
578
for name in (property_name,
579
property_name + u"_dbus_property"):
580
prop = getattr(self, name, None)
581
if (prop is None
582
or not self._is_dbus_property(prop)
583
or prop._dbus_name != property_name
584
or (interface_name and prop._dbus_interface
585
and interface_name != prop._dbus_interface)):
586
continue
587
return prop
878
588
# No such property
879
raise DBusPropertyNotFound(self.dbus_object_path + ":"
880
+ interface_name + "."
589
raise DBusPropertyNotFound(self.dbus_object_path + u":"
590
+ interface_name + u"."
881
591
+ property_name)
882
592
883
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
884
out_signature="v")
593
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
594
out_signature=u"v")
885
595
def Get(self, interface_name, property_name):
886
596
"""Standard D-Bus property Get() method, see D-Bus standard.
887
597
"""
888
598
prop = self._get_dbus_property(interface_name, property_name)
889
if prop._dbus_access == "write":
599
if prop._dbus_access == u"write":
890
600
raise DBusPropertyAccessException(property_name)
891
601
value = prop()
892
if not hasattr(value, "variant_level"):
602
if not hasattr(value, u"variant_level"):
893
603
return value
894
604
return type(value)(value, variant_level=value.variant_level+1)
895
605
896
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
606
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
897
607
def Set(self, interface_name, property_name, value):
898
608
"""Standard D-Bus property Set() method, see D-Bus standard.
899
609
"""
900
610
prop = self._get_dbus_property(interface_name, property_name)
901
if prop._dbus_access == "read":
611
if prop._dbus_access == u"read":
902
612
raise DBusPropertyAccessException(property_name)
903
if prop._dbus_get_args_options["byte_arrays"]:
613
if prop._dbus_get_args_options[u"byte_arrays"]:
904
614
# The byte_arrays option is not supported yet on
905
615
# signatures other than "ay".
906
if prop._dbus_signature != "ay":
616
if prop._dbus_signature != u"ay":
907
617
raise ValueError
908
value = dbus.ByteArray(b''.join(chr(byte)
909
for byte in value))
618
value = dbus.ByteArray(''.join(unichr(byte)
619
for byte in value))
910
620
prop(value)
911
621
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
913
out_signature="a{sv}")
622
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
623
out_signature=u"a{sv}")
914
624
def GetAll(self, interface_name):
915
625
"""Standard D-Bus property GetAll() method, see D-Bus
916
626
standard.
917
627
918
628
Note: Will not include properties with access="write".
919
629
"""
920
properties = {}
921
for name, prop in self._get_all_dbus_things("property"):
630
all = {}
631
for name, prop in self._get_all_dbus_properties():
922
632
if (interface_name
923
633
and interface_name != prop._dbus_interface):
924
634
# Interface non-empty but did not match
925
635
continue
926
636
# Ignore write-only properties
927
if prop._dbus_access == "write":
637
if prop._dbus_access == u"write":
928
638
continue
929
639
value = prop()
930
if not hasattr(value, "variant_level"):
931
properties[name] = value
640
if not hasattr(value, u"variant_level"):
641
all[name] = value
932
642
continue
933
properties[name] = type(value)(value, variant_level=
934
value.variant_level+1)
935
return dbus.Dictionary(properties, signature="sv")
643
all[name] = type(value)(value, variant_level=
644
value.variant_level+1)
645
return dbus.Dictionary(all, signature=u"sv")
936
646
937
647
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
938
out_signature="s",
648
out_signature=u"s",
939
649
path_keyword='object_path',
940
650
connection_keyword='connection')
941
651
def Introspect(self, object_path, connection):
942
"""Overloading of standard D-Bus method.
943
944
Inserts property tags and interface annotation tags.
652
"""Standard D-Bus method, overloaded to insert property tags.
945
653
"""
946
654
xmlstring = dbus.service.Object.Introspect(self, object_path,
947
655
connection)
948
656
try:
949
657
document = xml.dom.minidom.parseString(xmlstring)
950
658
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)
659
e = document.createElement(u"property")
660
e.setAttribute(u"name", name)
661
e.setAttribute(u"type", prop._dbus_signature)
662
e.setAttribute(u"access", prop._dbus_access)
955
663
return e
956
for if_tag in document.getElementsByTagName("interface"):
957
# Add property tags
664
for if_tag in document.getElementsByTagName(u"interface"):
958
665
for tag in (make_tag(document, name, prop)
959
666
for name, prop
960
in self._get_all_dbus_things("property")
667
in self._get_all_dbus_properties()
961
668
if prop._dbus_interface
962
== if_tag.getAttribute("name")):
669
== if_tag.getAttribute(u"name")):
963
670
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
671
# Add the names to the return values for the
996
672
# "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")
673
if (if_tag.getAttribute(u"name")
674
== u"org.freedesktop.DBus.Properties"):
675
for cn in if_tag.getElementsByTagName(u"method"):
676
if cn.getAttribute(u"name") == u"Get":
677
for arg in cn.getElementsByTagName(u"arg"):
678
if (arg.getAttribute(u"direction")
679
== u"out"):
680
arg.setAttribute(u"name", u"value")
681
elif cn.getAttribute(u"name") == u"GetAll":
682
for arg in cn.getElementsByTagName(u"arg"):
683
if (arg.getAttribute(u"direction")
684
== u"out"):
685
arg.setAttribute(u"name", u"props")
686
xmlstring = document.toxml(u"utf-8")
1011
687
document.unlink()
1012
688
except (AttributeError, xml.dom.DOMException,
1013
xml.parsers.expat.ExpatError) as error:
1014
logger.error("Failed to override Introspection method",
1015
exc_info=error)
689
xml.parsers.expat.ExpatError), error:
690
logger.error(u"Failed to override Introspection method",
691
error)
1016
692
return xmlstring
1017
693
1018
694
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
695
class ClientDBus(Client, DBusObjectWithProperties):
1199
696
"""A Client class using D-Bus
1200
697
1202
699
dbus_object_path: dbus.ObjectPath
1203
700
bus: dbus.SystemBus()
1204
701
"""
1205
1206
runtime_expansions = (Client.runtime_expansions
1207
+ ("dbus_object_path",))
1208
1209
702
# dbus.service.Object doesn't use super(), so we can't either.
1210
703
1211
704
def __init__(self, bus = None, *args, **kwargs):
1213
706
Client.__init__(self, *args, **kwargs)
1214
707
# Only now, when this client is initialized, can it show up on
1215
708
# the D-Bus
1216
client_object_name = unicode(self.name).translate(
1217
{ord("."): ord("_"),
1218
ord("-"): ord("_")})
1219
709
self.dbus_object_path = (dbus.ObjectPath
1220
("/clients/" + client_object_name))
710
(u"/clients/"
711
+ self.name.replace(u".", u"_")))
1221
712
DBusObjectWithProperties.__init__(self, self.bus,
1222
713
self.dbus_object_path)
1223
714
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
715
@staticmethod
716
def _datetime_to_dbus(dt, variant_level=0):
717
"""Convert a UTC datetime.datetime() to a D-Bus type."""
718
return dbus.String(dt.isoformat(),
719
variant_level=variant_level)
720
721
def enable(self):
722
oldstate = getattr(self, u"enabled", False)
723
r = Client.enable(self)
724
if oldstate != self.enabled:
725
# Emit D-Bus signals
726
self.PropertyChanged(dbus.String(u"enabled"),
727
dbus.Boolean(True, variant_level=1))
728
self.PropertyChanged(
729
dbus.String(u"last_enabled"),
730
self._datetime_to_dbus(self.last_enabled,
731
variant_level=1))
732
return r
733
734
def disable(self, quiet = False):
735
oldstate = getattr(self, u"enabled", False)
736
r = Client.disable(self, quiet=quiet)
737
if not quiet and oldstate != self.enabled:
738
# Emit D-Bus signal
739
self.PropertyChanged(dbus.String(u"enabled"),
740
dbus.Boolean(False, variant_level=1))
741
return r
1291
742
1292
743
def __del__(self, *args, **kwargs):
1293
744
try:
1294
745
self.remove_from_connection()
1295
746
except LookupError:
1296
747
pass
1297
if hasattr(DBusObjectWithProperties, "__del__"):
748
if hasattr(DBusObjectWithProperties, u"__del__"):
1298
749
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1299
750
Client.__del__(self, *args, **kwargs)
1300
751
1302
753
*args, **kwargs):
1303
754
self.checker_callback_tag = None
1304
755
self.checker = None
756
# Emit D-Bus signal
757
self.PropertyChanged(dbus.String(u"checker_running"),
758
dbus.Boolean(False, variant_level=1))
1305
759
if os.WIFEXITED(condition):
1306
760
exitstatus = os.WEXITSTATUS(condition)
1307
761
# Emit D-Bus signal
1317
771
return Client.checker_callback(self, pid, condition, command,
1318
772
*args, **kwargs)
1319
773
774
def checked_ok(self, *args, **kwargs):
775
r = Client.checked_ok(self, *args, **kwargs)
776
# Emit D-Bus signal
777
self.PropertyChanged(
778
dbus.String(u"last_checked_ok"),
779
(self._datetime_to_dbus(self.last_checked_ok,
780
variant_level=1)))
781
return r
782
1320
783
def start_checker(self, *args, **kwargs):
1321
784
old_checker = self.checker
1322
785
if self.checker is not None:
1329
792
and old_checker_pid != self.checker.pid):
1330
793
# Emit D-Bus signal
1331
794
self.CheckerStarted(self.current_checker_command)
795
self.PropertyChanged(
796
dbus.String(u"checker_running"),
797
dbus.Boolean(True, variant_level=1))
1332
798
return r
1333
799
800
def stop_checker(self, *args, **kwargs):
801
old_checker = getattr(self, u"checker", None)
802
r = Client.stop_checker(self, *args, **kwargs)
803
if (old_checker is not None
804
and getattr(self, u"checker", None) is None):
805
self.PropertyChanged(dbus.String(u"checker_running"),
806
dbus.Boolean(False, variant_level=1))
807
return r
808
1334
809
def _reset_approved(self):
1335
self.approved = None
810
self._approved = None
1336
811
return False
1337
812
1338
813
def approve(self, value=True):
1339
self.approved = value
1340
gobject.timeout_add(timedelta_to_milliseconds
1341
(self.approval_duration),
1342
self._reset_approved)
1343
self.send_changedstate()
814
self._approved = value
815
gobject.timeout_add(self._timedelta_to_milliseconds(self.approved_duration, self._reset_approved))
816
817
def approved_pending(self):
818
return self.approvals_pending > 0
819
1344
820
1345
821
## 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"}
822
_interface = u"se.bsnet.fukt.Mandos.Client"
1354
823
1355
824
## Signals
1356
825
1357
826
# CheckerCompleted - signal
1358
@dbus.service.signal(_interface, signature="nxs")
827
@dbus.service.signal(_interface, signature=u"nxs")
1359
828
def CheckerCompleted(self, exitcode, waitstatus, command):
1360
829
"D-Bus signal"
1361
830
pass
1362
831
1363
832
# CheckerStarted - signal
1364
@dbus.service.signal(_interface, signature="s")
833
@dbus.service.signal(_interface, signature=u"s")
1365
834
def CheckerStarted(self, command):
1366
835
"D-Bus signal"
1367
836
pass
1368
837
1369
838
# PropertyChanged - signal
1370
@dbus.service.signal(_interface, signature="sv")
839
@dbus.service.signal(_interface, signature=u"sv")
1371
840
def PropertyChanged(self, property, value):
1372
841
"D-Bus signal"
1373
842
pass
1375
844
# GotSecret - signal
1376
845
@dbus.service.signal(_interface)
1377
846
def GotSecret(self):
1378
"""D-Bus signal
1379
Is sent after a successful transfer of secret from the Mandos
1380
server to mandos-client
1381
"""
1382
pass
847
"D-Bus signal"
848
if self.approved_pending():
849
self.PropertyChanged(dbus.String(u"checker_running"),
850
dbus.Boolean(False, variant_level=1))
1383
851
1384
852
# Rejected - signal
1385
@dbus.service.signal(_interface, signature="s")
853
@dbus.service.signal(_interface, signature=u"s")
1386
854
def Rejected(self, reason):
1387
855
"D-Bus signal"
1388
pass
856
if self.approved_pending():
857
self.PropertyChanged(dbus.String(u"checker_running"),
858
dbus.Boolean(False, variant_level=1))
1389
859
1390
860
# NeedApproval - signal
1391
@dbus.service.signal(_interface, signature="tb")
861
@dbus.service.signal(_interface, signature=u"db")
1392
862
def NeedApproval(self, timeout, default):
1393
863
"D-Bus signal"
1394
return self.need_approval()
864
if not self.approved_pending():
865
self.PropertyChanged(dbus.String(u"approved_pending"),
866
dbus.Boolean(True, variant_level=1))
1395
867
1396
868
## Methods
1397
869
1398
870
# Approve - method
1399
@dbus.service.method(_interface, in_signature="b")
871
@dbus.service.method(_interface, in_signature=u"b")
1400
872
def Approve(self, value):
1401
873
self.approve(value)
1402
874
1403
875
# CheckedOK - method
1404
876
@dbus.service.method(_interface)
1405
877
def CheckedOK(self):
1406
self.checked_ok()
878
return self.checked_ok()
1407
879
1408
880
# Enable - method
1409
881
@dbus.service.method(_interface)
1430
902
1431
903
## Properties
1432
904
1433
# ApprovalPending - property
1434
@dbus_service_property(_interface, signature="b", access="read")
1435
def ApprovalPending_dbus_property(self):
1436
return dbus.Boolean(bool(self.approvals_pending))
1437
1438
# ApprovedByDefault - property
1439
@dbus_service_property(_interface, signature="b",
1440
access="readwrite")
1441
def ApprovedByDefault_dbus_property(self, value=None):
1442
if value is None: # get
1443
return dbus.Boolean(self.approved_by_default)
1444
self.approved_by_default = bool(value)
1445
1446
# ApprovalDelay - property
1447
@dbus_service_property(_interface, signature="t",
1448
access="readwrite")
1449
def ApprovalDelay_dbus_property(self, value=None):
1450
if value is None: # get
1451
return dbus.UInt64(self.approval_delay_milliseconds())
1452
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1453
1454
# ApprovalDuration - property
1455
@dbus_service_property(_interface, signature="t",
1456
access="readwrite")
1457
def ApprovalDuration_dbus_property(self, value=None):
1458
if value is None: # get
1459
return dbus.UInt64(timedelta_to_milliseconds(
1460
self.approval_duration))
1461
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1462
1463
# Name - property
1464
@dbus_service_property(_interface, signature="s", access="read")
1465
def Name_dbus_property(self):
905
# approved_pending - property
906
@dbus_service_property(_interface, signature=u"b", access=u"read")
907
def approved_pending_dbus_property(self):
908
return dbus.Boolean(self.approved_pending())
909
910
# approved_by_default - property
911
@dbus_service_property(_interface, signature=u"b",
912
access=u"readwrite")
913
def approved_by_default_dbus_property(self):
914
return dbus.Boolean(self.approved_by_default)
915
916
# approved_delay - property
917
@dbus_service_property(_interface, signature=u"t",
918
access=u"readwrite")
919
def approved_delay_dbus_property(self):
920
return dbus.UInt64(self.approved_delay_milliseconds())
921
922
# approved_duration - property
923
@dbus_service_property(_interface, signature=u"t",
924
access=u"readwrite")
925
def approved_duration_dbus_property(self):
926
return dbus.UInt64(self._timedelta_to_milliseconds(
927
self.approved_duration))
928
929
# name - property
930
@dbus_service_property(_interface, signature=u"s", access=u"read")
931
def name_dbus_property(self):
1466
932
return dbus.String(self.name)
1467
933
1468
# Fingerprint - property
1469
@dbus_service_property(_interface, signature="s", access="read")
1470
def Fingerprint_dbus_property(self):
934
# fingerprint - property
935
@dbus_service_property(_interface, signature=u"s", access=u"read")
936
def fingerprint_dbus_property(self):
1471
937
return dbus.String(self.fingerprint)
1472
938
1473
# Host - property
1474
@dbus_service_property(_interface, signature="s",
1475
access="readwrite")
1476
def Host_dbus_property(self, value=None):
939
# host - property
940
@dbus_service_property(_interface, signature=u"s",
941
access=u"readwrite")
942
def host_dbus_property(self, value=None):
1477
943
if value is None: # get
1478
944
return dbus.String(self.host)
1479
self.host = unicode(value)
1480
1481
# Created - property
1482
@dbus_service_property(_interface, signature="s", access="read")
1483
def Created_dbus_property(self):
1484
return datetime_to_dbus(self.created)
1485
1486
# LastEnabled - property
1487
@dbus_service_property(_interface, signature="s", access="read")
1488
def LastEnabled_dbus_property(self):
1489
return datetime_to_dbus(self.last_enabled)
1490
1491
# Enabled - property
1492
@dbus_service_property(_interface, signature="b",
1493
access="readwrite")
1494
def Enabled_dbus_property(self, value=None):
945
self.host = value
946
# Emit D-Bus signal
947
self.PropertyChanged(dbus.String(u"host"),
948
dbus.String(value, variant_level=1))
949
950
# created - property
951
@dbus_service_property(_interface, signature=u"s", access=u"read")
952
def created_dbus_property(self):
953
return dbus.String(self._datetime_to_dbus(self.created))
954
955
# last_enabled - property
956
@dbus_service_property(_interface, signature=u"s", access=u"read")
957
def last_enabled_dbus_property(self):
958
if self.last_enabled is None:
959
return dbus.String(u"")
960
return dbus.String(self._datetime_to_dbus(self.last_enabled))
961
962
# enabled - property
963
@dbus_service_property(_interface, signature=u"b",
964
access=u"readwrite")
965
def enabled_dbus_property(self, value=None):
1495
966
if value is None: # get
1496
967
return dbus.Boolean(self.enabled)
1497
968
if value:
1499
970
else:
1500
971
self.disable()
1501
972
1502
# LastCheckedOK - property
1503
@dbus_service_property(_interface, signature="s",
1504
access="readwrite")
1505
def LastCheckedOK_dbus_property(self, value=None):
973
# last_checked_ok - property
974
@dbus_service_property(_interface, signature=u"s",
975
access=u"readwrite")
976
def last_checked_ok_dbus_property(self, value=None):
1506
977
if value is not None:
1507
978
self.checked_ok()
1508
979
return
1509
return datetime_to_dbus(self.last_checked_ok)
1510
1511
# LastCheckerStatus - property
1512
@dbus_service_property(_interface, signature="n",
1513
access="read")
1514
def LastCheckerStatus_dbus_property(self):
1515
return dbus.Int16(self.last_checker_status)
1516
1517
# Expires - property
1518
@dbus_service_property(_interface, signature="s", access="read")
1519
def Expires_dbus_property(self):
1520
return datetime_to_dbus(self.expires)
1521
1522
# LastApprovalRequest - property
1523
@dbus_service_property(_interface, signature="s", access="read")
1524
def LastApprovalRequest_dbus_property(self):
1525
return datetime_to_dbus(self.last_approval_request)
1526
1527
# Timeout - property
1528
@dbus_service_property(_interface, signature="t",
1529
access="readwrite")
1530
def Timeout_dbus_property(self, value=None):
980
if self.last_checked_ok is None:
981
return dbus.String(u"")
982
return dbus.String(self._datetime_to_dbus(self
983
.last_checked_ok))
984
985
# timeout - property
986
@dbus_service_property(_interface, signature=u"t",
987
access=u"readwrite")
988
def timeout_dbus_property(self, value=None):
1531
989
if value is None: # get
1532
990
return dbus.UInt64(self.timeout_milliseconds())
1533
old_timeout = self.timeout
1534
991
self.timeout = datetime.timedelta(0, 0, 0, value)
1535
# Reschedule disabling
1536
if self.enabled:
1537
now = datetime.datetime.utcnow()
1538
self.expires += self.timeout - old_timeout
1539
if self.expires <= now:
1540
# The timeout has passed
1541
self.disable()
1542
else:
1543
if (getattr(self, "disable_initiator_tag", None)
1544
is None):
1545
return
1546
gobject.source_remove(self.disable_initiator_tag)
1547
self.disable_initiator_tag = (
1548
gobject.timeout_add(
1549
timedelta_to_milliseconds(self.expires - now),
1550
self.disable))
1551
1552
# ExtendedTimeout - property
1553
@dbus_service_property(_interface, signature="t",
1554
access="readwrite")
1555
def ExtendedTimeout_dbus_property(self, value=None):
1556
if value is None: # get
1557
return dbus.UInt64(self.extended_timeout_milliseconds())
1558
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1559
1560
# Interval - property
1561
@dbus_service_property(_interface, signature="t",
1562
access="readwrite")
1563
def Interval_dbus_property(self, value=None):
992
# Emit D-Bus signal
993
self.PropertyChanged(dbus.String(u"timeout"),
994
dbus.UInt64(value, variant_level=1))
995
if getattr(self, u"disable_initiator_tag", None) is None:
996
return
997
# Reschedule timeout
998
gobject.source_remove(self.disable_initiator_tag)
999
self.disable_initiator_tag = None
1000
time_to_die = (self.
1001
_timedelta_to_milliseconds((self
1002
.last_checked_ok
1003
+ self.timeout)
1004
- datetime.datetime
1005
.utcnow()))
1006
if time_to_die <= 0:
1007
# The timeout has passed
1008
self.disable()
1009
else:
1010
self.disable_initiator_tag = (gobject.timeout_add
1011
(time_to_die, self.disable))
1012
1013
# interval - property
1014
@dbus_service_property(_interface, signature=u"t",
1015
access=u"readwrite")
1016
def interval_dbus_property(self, value=None):
1564
1017
if value is None: # get
1565
1018
return dbus.UInt64(self.interval_milliseconds())
1566
1019
self.interval = datetime.timedelta(0, 0, 0, value)
1567
if getattr(self, "checker_initiator_tag", None) is None:
1020
# Emit D-Bus signal
1021
self.PropertyChanged(dbus.String(u"interval"),
1022
dbus.UInt64(value, variant_level=1))
1023
if getattr(self, u"checker_initiator_tag", None) is None:
1568
1024
return
1569
if self.enabled:
1570
# Reschedule checker run
1571
gobject.source_remove(self.checker_initiator_tag)
1572
self.checker_initiator_tag = (gobject.timeout_add
1573
(value, self.start_checker))
1574
self.start_checker() # Start one now, too
1575
1576
# Checker - property
1577
@dbus_service_property(_interface, signature="s",
1578
access="readwrite")
1579
def Checker_dbus_property(self, value=None):
1025
# Reschedule checker run
1026
gobject.source_remove(self.checker_initiator_tag)
1027
self.checker_initiator_tag = (gobject.timeout_add
1028
(value, self.start_checker))
1029
self.start_checker() # Start one now, too
1030
1031
# checker - property
1032
@dbus_service_property(_interface, signature=u"s",
1033
access=u"readwrite")
1034
def checker_dbus_property(self, value=None):
1580
1035
if value is None: # get
1581
1036
return dbus.String(self.checker_command)
1582
self.checker_command = unicode(value)
1037
self.checker_command = value
1038
# Emit D-Bus signal
1039
self.PropertyChanged(dbus.String(u"checker"),
1040
dbus.String(self.checker_command,
1041
variant_level=1))
1583
1042
1584
# CheckerRunning - property
1585
@dbus_service_property(_interface, signature="b",
1586
access="readwrite")
1587
def CheckerRunning_dbus_property(self, value=None):
1043
# checker_running - property
1044
@dbus_service_property(_interface, signature=u"b",
1045
access=u"readwrite")
1046
def checker_running_dbus_property(self, value=None):
1588
1047
if value is None: # get
1589
1048
return dbus.Boolean(self.checker is not None)
1590
1049
if value:
1592
1051
else:
1593
1052
self.stop_checker()
1594
1053
1595
# ObjectPath - property
1596
@dbus_service_property(_interface, signature="o", access="read")
1597
def ObjectPath_dbus_property(self):
1054
# object_path - property
1055
@dbus_service_property(_interface, signature=u"o", access=u"read")
1056
def object_path_dbus_property(self):
1598
1057
return self.dbus_object_path # is already a dbus.ObjectPath
1599
1058
1600
# Secret = property
1601
@dbus_service_property(_interface, signature="ay",
1602
access="write", byte_arrays=True)
1603
def Secret_dbus_property(self, value):
1059
# secret = property
1060
@dbus_service_property(_interface, signature=u"ay",
1061
access=u"write", byte_arrays=True)
1062
def secret_dbus_property(self, value):
1604
1063
self.secret = str(value)
1605
1064
1606
1065
del _interface
1612
1071
self._pipe.send(('init', fpr, address))
1613
1072
if not self._pipe.recv():
1614
1073
raise KeyError()
1615
1074
1616
1075
def __getattribute__(self, name):
1617
if name == '_pipe':
1076
if(name == '_pipe'):
1618
1077
return super(ProxyClient, self).__getattribute__(name)
1619
1078
self._pipe.send(('getattr', name))
1620
1079
data = self._pipe.recv()
1625
1084
self._pipe.send(('funcall', name, args, kwargs))
1626
1085
return self._pipe.recv()[1]
1627
1086
return func
1628
1087
1629
1088
def __setattr__(self, name, value):
1630
if name == '_pipe':
1089
if(name == '_pipe'):
1631
1090
return super(ProxyClient, self).__setattr__(name, value)
1632
1091
self._pipe.send(('setattr', name, value))
1633
1092
1640
1099
1641
1100
def handle(self):
1642
1101
with contextlib.closing(self.server.child_pipe) as child_pipe:
1643
logger.info("TCP connection from: %s",
1102
logger.info(u"TCP connection from: %s",
1644
1103
unicode(self.client_address))
1645
logger.debug("Pipe FD: %d",
1104
logger.debug(u"Pipe FD: %d",
1646
1105
self.server.child_pipe.fileno())
1647
1106
1648
1107
session = (gnutls.connection
1649
1108
.ClientSession(self.request,
1650
1109
gnutls.connection
1651
1110
.X509Credentials()))
1652
1111
1653
1112
# Note: gnutls.connection.X509Credentials is really a
1654
1113
# generic GnuTLS certificate credentials object so long as
1655
1114
# no X.509 keys are added to it. Therefore, we can use it
1656
1115
# 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"))
1116
1117
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1118
# u"+AES-256-CBC", u"+SHA1",
1119
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1120
# u"+DHE-DSS"))
1662
1121
# Use a fallback default, since this MUST be set.
1663
1122
priority = self.server.gnutls_priority
1664
1123
if priority is None:
1665
priority = "NORMAL"
1124
priority = u"NORMAL"
1666
1125
(gnutls.library.functions
1667
1126
.gnutls_priority_set_direct(session._c_object,
1668
1127
priority, None))
1669
1128
1670
1129
# Start communication using the Mandos protocol
1671
1130
# Get protocol number
1672
1131
line = self.request.makefile().readline()
1673
logger.debug("Protocol version: %r", line)
1132
logger.debug(u"Protocol version: %r", line)
1674
1133
try:
1675
1134
if int(line.strip().split()[0]) > 1:
1676
1135
raise RuntimeError
1677
except (ValueError, IndexError, RuntimeError) as error:
1678
logger.error("Unknown protocol version: %s", error)
1136
except (ValueError, IndexError, RuntimeError), error:
1137
logger.error(u"Unknown protocol version: %s", error)
1679
1138
return
1680
1139
1681
1140
# Start GnuTLS connection
1682
1141
try:
1683
1142
session.handshake()
1684
except gnutls.errors.GNUTLSError as error:
1685
logger.warning("Handshake failed: %s", error)
1143
except gnutls.errors.GNUTLSError, error:
1144
logger.warning(u"Handshake failed: %s", error)
1686
1145
# Do not run session.bye() here: the session is not
1687
1146
# established. Just abandon the request.
1688
1147
return
1689
logger.debug("Handshake succeeded")
1690
1148
logger.debug(u"Handshake succeeded")
1149
1691
1150
approval_required = False
1692
1151
try:
1693
1152
try:
1694
1153
fpr = self.fingerprint(self.peer_certificate
1695
1154
(session))
1696
except (TypeError,
1697
gnutls.errors.GNUTLSError) as error:
1698
logger.warning("Bad certificate: %s", error)
1155
except (TypeError, gnutls.errors.GNUTLSError), error:
1156
logger.warning(u"Bad certificate: %s", error)
1699
1157
return
1700
logger.debug("Fingerprint: %s", fpr)
1701
1158
logger.debug(u"Fingerprint: %s", fpr)
1159
1702
1160
try:
1703
1161
client = ProxyClient(child_pipe, fpr,
1704
1162
self.client_address)
1705
1163
except KeyError:
1706
1164
return
1707
1165
1708
if client.approval_delay:
1709
delay = client.approval_delay
1166
if client.approved_delay:
1167
delay = client.approved_delay
1710
1168
client.approvals_pending += 1
1711
1169
approval_required = True
1712
1170
1713
1171
while True:
1714
1172
if not client.enabled:
1715
logger.info("Client %s is disabled",
1173
logger.warning(u"Client %s is disabled",
1716
1174
client.name)
1717
1175
if self.server.use_dbus:
1718
1176
# Emit D-Bus signal
1719
client.Rejected("Disabled")
1177
client.Rejected("Disabled")
1720
1178
return
1721
1179
1722
if client.approved or not client.approval_delay:
1180
if client._approved or not client.approved_delay:
1723
1181
#We are approved or approval is disabled
1724
1182
break
1725
elif client.approved is None:
1726
logger.info("Client %s needs approval",
1183
elif client._approved is None:
1184
logger.info(u"Client %s need approval",
1727
1185
client.name)
1728
1186
if self.server.use_dbus:
1729
1187
# Emit D-Bus signal
1730
1188
client.NeedApproval(
1731
client.approval_delay_milliseconds(),
1189
client.approved_delay_milliseconds(),
1732
1190
client.approved_by_default)
1733
1191
else:
1734
logger.warning("Client %s was not approved",
1192
logger.warning(u"Client %s was not approved",
1735
1193
client.name)
1736
1194
if self.server.use_dbus:
1737
1195
# Emit D-Bus signal
1738
client.Rejected("Denied")
1196
client.Rejected("Disapproved")
1739
1197
return
1740
1198
1741
1199
#wait until timeout or approved
1200
#x = float(client._timedelta_to_milliseconds(delay))
1742
1201
time = datetime.datetime.now()
1743
1202
client.changedstate.acquire()
1744
client.changedstate.wait(
1745
float(timedelta_to_milliseconds(delay)
1746
/ 1000))
1203
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1747
1204
client.changedstate.release()
1748
1205
time2 = datetime.datetime.now()
1749
1206
if (time2 - time) >= delay:
1753
1210
client.name)
1754
1211
if self.server.use_dbus:
1755
1212
# Emit D-Bus signal
1756
client.Rejected("Approval timed out")
1213
client.Rejected("Time out")
1757
1214
return
1758
1215
else:
1759
1216
break
1762
1219
1763
1220
sent_size = 0
1764
1221
while sent_size < len(client.secret):
1765
try:
1766
sent = session.send(client.secret[sent_size:])
1767
except gnutls.errors.GNUTLSError as error:
1768
logger.warning("gnutls send failed",
1769
exc_info=error)
1770
return
1771
logger.debug("Sent: %d, remaining: %d",
1222
# XXX handle session exception
1223
sent = session.send(client.secret[sent_size:])
1224
logger.debug(u"Sent: %d, remaining: %d",
1772
1225
sent, len(client.secret)
1773
1226
- (sent_size + sent))
1774
1227
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)
1228
1229
logger.info(u"Sending secret to %s", client.name)
1230
# bump the timeout as if seen
1231
client.checked_ok()
1779
1232
if self.server.use_dbus:
1780
1233
# Emit D-Bus signal
1781
1234
client.GotSecret()
1783
1236
finally:
1784
1237
if approval_required:
1785
1238
client.approvals_pending -= 1
1786
try:
1787
session.bye()
1788
except gnutls.errors.GNUTLSError as error:
1789
logger.warning("GnuTLS bye failed",
1790
exc_info=error)
1239
session.bye()
1791
1240
1792
1241
@staticmethod
1793
1242
def peer_certificate(session):
1803
1252
.gnutls_certificate_get_peers
1804
1253
(session._c_object, ctypes.byref(list_size)))
1805
1254
if not bool(cert_list) and list_size.value != 0:
1806
raise gnutls.errors.GNUTLSError("error getting peer"
1807
" certificate")
1255
raise gnutls.errors.GNUTLSError(u"error getting peer"
1256
u" certificate")
1808
1257
if list_size.value == 0:
1809
1258
return None
1810
1259
cert = cert_list[0]
1836
1285
if crtverify.value != 0:
1837
1286
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1838
1287
raise (gnutls.errors.CertificateSecurityError
1839
("Verify failed"))
1288
(u"Verify failed"))
1840
1289
# New buffer for the fingerprint
1841
1290
buf = ctypes.create_string_buffer(20)
1842
1291
buf_len = ctypes.c_size_t()
1849
1298
# Convert the buffer to a Python bytestring
1850
1299
fpr = ctypes.string_at(buf, buf_len.value)
1851
1300
# Convert the bytestring to hexadecimal notation
1852
hex_fpr = binascii.hexlify(fpr).upper()
1301
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1853
1302
return hex_fpr
1854
1303
1855
1304
1858
1307
def sub_process_main(self, request, address):
1859
1308
try:
1860
1309
self.finish_request(request, address)
1861
except Exception:
1310
except:
1862
1311
self.handle_error(request, address)
1863
1312
self.close_request(request)
1864
1313
1865
1314
def process_request(self, request, address):
1866
1315
"""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
1316
multiprocessing.Process(target = self.sub_process_main,
1317
args = (request, address)).start()
1872
1318
1873
1319
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1874
1320
""" adds a pipe to the MixIn """
1878
1324
This function creates a new pipe in self.pipe
1879
1325
"""
1880
1326
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1881
1882
proc = MultiprocessingMixIn.process_request(self, request,
1883
client_address)
1884
self.child_pipe.close()
1885
self.add_pipe(parent_pipe, proc)
1886
1887
def add_pipe(self, parent_pipe, proc):
1327
1328
super(MultiprocessingMixInWithPipe,
1329
self).process_request(request, client_address)
1330
self.add_pipe(parent_pipe)
1331
def add_pipe(self, parent_pipe):
1888
1332
"""Dummy function; override as necessary"""
1889
raise NotImplementedError
1890
1333
pass
1891
1334
1892
1335
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1893
1336
socketserver.TCPServer, object):
1899
1342
use_ipv6: Boolean; to use IPv6 or not
1900
1343
"""
1901
1344
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
"""
1345
interface=None, use_ipv6=True):
1906
1346
self.interface = interface
1907
1347
if use_ipv6:
1908
1348
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
1349
socketserver.TCPServer.__init__(self, server_address,
1936
1350
RequestHandlerClass)
1937
1938
1351
def server_bind(self):
1939
1352
"""This overrides the normal server_bind() function
1940
1353
to bind to an interface if one was specified, and also NOT to
1941
1354
bind to an address or port if they were not specified."""
1942
1355
if self.interface is not None:
1943
1356
if SO_BINDTODEVICE is None:
1944
logger.error("SO_BINDTODEVICE does not exist;"
1945
" cannot bind to interface %s",
1357
logger.error(u"SO_BINDTODEVICE does not exist;"
1358
u" cannot bind to interface %s",
1946
1359
self.interface)
1947
1360
else:
1948
1361
try:
1949
1362
self.socket.setsockopt(socket.SOL_SOCKET,
1950
1363
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)
1364
str(self.interface
1365
+ u'\0'))
1366
except socket.error, error:
1367
if error[0] == errno.EPERM:
1368
logger.error(u"No permission to"
1369
u" bind to interface %s",
1370
self.interface)
1371
elif error[0] == errno.ENOPROTOOPT:
1372
logger.error(u"SO_BINDTODEVICE not available;"
1373
u" cannot bind to interface %s",
1374
self.interface)
1963
1375
else:
1964
1376
raise
1965
1377
# Only bind(2) the socket if we really need to.
1966
1378
if self.server_address[0] or self.server_address[1]:
1967
1379
if not self.server_address[0]:
1968
1380
if self.address_family == socket.AF_INET6:
1969
any_address = "::" # in6addr_any
1381
any_address = u"::" # in6addr_any
1970
1382
else:
1971
1383
any_address = socket.INADDR_ANY
1972
1384
self.server_address = (any_address,
1995
1407
"""
1996
1408
def __init__(self, server_address, RequestHandlerClass,
1997
1409
interface=None, use_ipv6=True, clients=None,
1998
gnutls_priority=None, use_dbus=True, socketfd=None):
1410
gnutls_priority=None, use_dbus=True):
1999
1411
self.enabled = False
2000
1412
self.clients = clients
2001
1413
if self.clients is None:
2002
self.clients = {}
1414
self.clients = set()
2003
1415
self.use_dbus = use_dbus
2004
1416
self.gnutls_priority = gnutls_priority
2005
1417
IPv6_TCPServer.__init__(self, server_address,
2006
1418
RequestHandlerClass,
2007
1419
interface = interface,
2008
use_ipv6 = use_ipv6,
2009
socketfd = socketfd)
1420
use_ipv6 = use_ipv6)
2010
1421
def server_activate(self):
2011
1422
if self.enabled:
2012
1423
return socketserver.TCPServer.server_activate(self)
2013
2014
1424
def enable(self):
2015
1425
self.enabled = True
2016
2017
def add_pipe(self, parent_pipe, proc):
1426
def add_pipe(self, parent_pipe):
2018
1427
# Call "handle_ipc" for both data and EOF events
2019
1428
gobject.io_add_watch(parent_pipe.fileno(),
2020
1429
gobject.IO_IN | gobject.IO_HUP,
2021
1430
functools.partial(self.handle_ipc,
2022
parent_pipe =
2023
parent_pipe,
2024
proc = proc))
2025
1431
parent_pipe = parent_pipe))
1432
2026
1433
def handle_ipc(self, source, condition, parent_pipe=None,
2027
proc = None, client_object=None):
2028
# error, or the other end of multiprocessing.Pipe has closed
2029
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2030
# Wait for other process to exit
2031
proc.join()
2032
return False
1434
client_object=None):
1435
condition_names = {
1436
gobject.IO_IN: u"IN", # There is data to read.
1437
gobject.IO_OUT: u"OUT", # Data can be written (without
1438
# blocking).
1439
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1440
gobject.IO_ERR: u"ERR", # Error condition.
1441
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1442
# broken, usually for pipes and
1443
# sockets).
1444
}
1445
conditions_string = ' | '.join(name
1446
for cond, name in
1447
condition_names.iteritems()
1448
if cond & condition)
1449
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1450
conditions_string)
2033
1451
2034
1452
# Read a request from the child
2035
1453
request = parent_pipe.recv()
2039
1457
fpr = request[1]
2040
1458
address = request[2]
2041
1459
2042
for c in self.clients.itervalues():
1460
for c in self.clients:
2043
1461
if c.fingerprint == fpr:
2044
1462
client = c
2045
1463
break
2046
1464
else:
2047
logger.info("Client not found for fingerprint: %s, ad"
2048
"dress: %s", fpr, address)
1465
logger.warning(u"Client not found for fingerprint: %s, ad"
1466
u"dress: %s", fpr, address)
2049
1467
if self.use_dbus:
2050
1468
# Emit D-Bus signal
2051
mandos_dbus_service.ClientNotFound(fpr,
2052
address[0])
1469
mandos_dbus_service.ClientNotFound(fpr, address)
2053
1470
parent_pipe.send(False)
2054
1471
return False
2055
1472
2056
1473
gobject.io_add_watch(parent_pipe.fileno(),
2057
1474
gobject.IO_IN | gobject.IO_HUP,
2058
1475
functools.partial(self.handle_ipc,
2059
parent_pipe =
2060
parent_pipe,
2061
proc = proc,
2062
client_object =
2063
client))
1476
parent_pipe = parent_pipe,
1477
client_object = client))
2064
1478
parent_pipe.send(True)
2065
# remove the old hook in favor of the new above hook on
2066
# same fileno
1479
# remove the old hook in favor of the new above hook on same fileno
2067
1480
return False
2068
1481
if command == 'funcall':
2069
1482
funcname = request[1]
2070
1483
args = request[2]
2071
1484
kwargs = request[3]
2072
1485
2073
parent_pipe.send(('data', getattr(client_object,
2074
funcname)(*args,
2075
**kwargs)))
2076
1486
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1487
2077
1488
if command == 'getattr':
2078
1489
attrname = request[1]
2079
1490
if callable(client_object.__getattribute__(attrname)):
2080
1491
parent_pipe.send(('function',))
2081
1492
else:
2082
parent_pipe.send(('data', client_object
2083
.__getattribute__(attrname)))
2084
1493
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1494
2085
1495
if command == 'setattr':
2086
1496
attrname = request[1]
2087
1497
value = request[2]
2088
1498
setattr(client_object, attrname, value)
2089
1499
2090
1500
return True
2091
1501
2092
1502
2093
1503
def string_to_delta(interval):
2094
1504
"""Parse a string and return a datetime.timedelta
2095
1505
2096
>>> string_to_delta('7d')
1506
>>> string_to_delta(u'7d')
2097
1507
datetime.timedelta(7)
2098
>>> string_to_delta('60s')
1508
>>> string_to_delta(u'60s')
2099
1509
datetime.timedelta(0, 60)
2100
>>> string_to_delta('60m')
1510
>>> string_to_delta(u'60m')
2101
1511
datetime.timedelta(0, 3600)
2102
>>> string_to_delta('24h')
1512
>>> string_to_delta(u'24h')
2103
1513
datetime.timedelta(1)
2104
>>> string_to_delta('1w')
1514
>>> string_to_delta(u'1w')
2105
1515
datetime.timedelta(7)
2106
>>> string_to_delta('5m 30s')
1516
>>> string_to_delta(u'5m 30s')
2107
1517
datetime.timedelta(0, 330)
2108
1518
"""
2109
1519
timevalue = datetime.timedelta(0)
2111
1521
try:
2112
1522
suffix = unicode(s[-1])
2113
1523
value = int(s[:-1])
2114
if suffix == "d":
1524
if suffix == u"d":
2115
1525
delta = datetime.timedelta(value)
2116
elif suffix == "s":
1526
elif suffix == u"s":
2117
1527
delta = datetime.timedelta(0, value)
2118
elif suffix == "m":
1528
elif suffix == u"m":
2119
1529
delta = datetime.timedelta(0, 0, 0, 0, value)
2120
elif suffix == "h":
1530
elif suffix == u"h":
2121
1531
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
2122
elif suffix == "w":
1532
elif suffix == u"w":
2123
1533
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2124
1534
else:
2125
raise ValueError("Unknown suffix {0!r}"
2126
.format(suffix))
2127
except (ValueError, IndexError) as e:
2128
raise ValueError(*(e.args))
1535
raise ValueError(u"Unknown suffix %r" % suffix)
1536
except (ValueError, IndexError), e:
1537
raise ValueError(e.message)
2129
1538
timevalue += delta
2130
1539
return timevalue
2131
1540
2132
1541
1542
def if_nametoindex(interface):
1543
"""Call the C function if_nametoindex(), or equivalent
1544
1545
Note: This function cannot accept a unicode string."""
1546
global if_nametoindex
1547
try:
1548
if_nametoindex = (ctypes.cdll.LoadLibrary
1549
(ctypes.util.find_library(u"c"))
1550
.if_nametoindex)
1551
except (OSError, AttributeError):
1552
logger.warning(u"Doing if_nametoindex the hard way")
1553
def if_nametoindex(interface):
1554
"Get an interface index the hard way, i.e. using fcntl()"
1555
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1556
with contextlib.closing(socket.socket()) as s:
1557
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1558
struct.pack(str(u"16s16x"),
1559
interface))
1560
interface_index = struct.unpack(str(u"I"),
1561
ifreq[16:20])[0]
1562
return interface_index
1563
return if_nametoindex(interface)
1564
1565
2133
1566
def daemon(nochdir = False, noclose = False):
2134
1567
"""See daemon(3). Standard BSD Unix function.
2135
1568
2138
1571
sys.exit()
2139
1572
os.setsid()
2140
1573
if not nochdir:
2141
os.chdir("/")
1574
os.chdir(u"/")
2142
1575
if os.fork():
2143
1576
sys.exit()
2144
1577
if not noclose:
2145
1578
# Close all standard open file descriptors
2146
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1579
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2147
1580
if not stat.S_ISCHR(os.fstat(null).st_mode):
2148
1581
raise OSError(errno.ENODEV,
2149
"{0} not a character device"
2150
.format(os.devnull))
1582
u"%s not a character device"
1583
% os.path.devnull)
2151
1584
os.dup2(null, sys.stdin.fileno())
2152
1585
os.dup2(null, sys.stdout.fileno())
2153
1586
os.dup2(null, sys.stderr.fileno())
2160
1593
##################################################################
2161
1594
# Parsing of options, both command line and config file
2162
1595
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()
1596
parser = optparse.OptionParser(version = "%%prog %s" % version)
1597
parser.add_option("-i", u"--interface", type=u"string",
1598
metavar="IF", help=u"Bind to interface IF")
1599
parser.add_option("-a", u"--address", type=u"string",
1600
help=u"Address to listen for requests on")
1601
parser.add_option("-p", u"--port", type=u"int",
1602
help=u"Port number to receive requests on")
1603
parser.add_option("--check", action=u"store_true",
1604
help=u"Run self-test")
1605
parser.add_option("--debug", action=u"store_true",
1606
help=u"Debug mode; run in foreground and log to"
1607
u" terminal")
1608
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1609
u" priority string (see GnuTLS documentation)")
1610
parser.add_option("--servicename", type=u"string",
1611
metavar=u"NAME", help=u"Zeroconf service name")
1612
parser.add_option("--configdir", type=u"string",
1613
default=u"/etc/mandos", metavar=u"DIR",
1614
help=u"Directory to search for configuration"
1615
u" files")
1616
parser.add_option("--no-dbus", action=u"store_false",
1617
dest=u"use_dbus", help=u"Do not provide D-Bus"
1618
u" system bus interface")
1619
parser.add_option("--no-ipv6", action=u"store_false",
1620
dest=u"use_ipv6", help=u"Do not use IPv6")
1621
options = parser.parse_args()[0]
2205
1622
2206
1623
if options.check:
2207
1624
import doctest
2209
1626
sys.exit()
2210
1627
2211
1628
# 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",
1629
server_defaults = { u"interface": u"",
1630
u"address": u"",
1631
u"port": u"",
1632
u"debug": u"False",
1633
u"priority":
1634
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1635
u"servicename": u"Mandos",
1636
u"use_dbus": u"True",
1637
u"use_ipv6": u"True",
2226
1638
}
2227
1639
2228
1640
# Parse config file for server-global settings
2229
1641
server_config = configparser.SafeConfigParser(server_defaults)
2230
1642
del server_defaults
2231
1643
server_config.read(os.path.join(options.configdir,
2232
"mandos.conf"))
1644
u"mandos.conf"))
2233
1645
# Convert the SafeConfigParser object to a dict
2234
1646
server_settings = server_config.defaults()
2235
1647
# 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",
1648
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1649
server_settings[option] = server_config.getboolean(u"DEFAULT",
2238
1650
option)
2239
1651
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"])
1652
server_settings["port"] = server_config.getint(u"DEFAULT",
1653
u"port")
2251
1654
del server_config
2252
1655
2253
1656
# Override the settings from the config file with command line
2254
1657
# 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"):
1658
for option in (u"interface", u"address", u"port", u"debug",
1659
u"priority", u"servicename", u"configdir",
1660
u"use_dbus", u"use_ipv6"):
2259
1661
value = getattr(options, option)
2260
1662
if value is not None:
2261
1663
server_settings[option] = value
2264
1666
for option in server_settings.keys():
2265
1667
if type(server_settings[option]) is str:
2266
1668
server_settings[option] = unicode(server_settings[option])
2267
# Debug implies foreground
2268
if server_settings["debug"]:
2269
server_settings["foreground"] = True
2270
1669
# Now we have our good server settings in "server_settings"
2271
1670
2272
1671
##################################################################
2273
1672
2274
1673
# 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":
1674
debug = server_settings[u"debug"]
1675
use_dbus = server_settings[u"use_dbus"]
1676
use_ipv6 = server_settings[u"use_ipv6"]
1677
1678
if not debug:
1679
syslogger.setLevel(logging.WARNING)
1680
console.setLevel(logging.WARNING)
1681
1682
if server_settings[u"servicename"] != u"Mandos":
2293
1683
syslogger.setFormatter(logging.Formatter
2294
('Mandos ({0}) [%(process)d]:'
2295
' %(levelname)s: %(message)s'
2296
.format(server_settings
2297
["servicename"])))
1684
(u'Mandos (%s) [%%(process)d]:'
1685
u' %%(levelname)s: %%(message)s'
1686
% server_settings[u"servicename"]))
2298
1687
2299
1688
# 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"))
1689
client_defaults = { u"timeout": u"1h",
1690
u"interval": u"5m",
1691
u"checker": u"fping -q -- %%(host)s",
1692
u"host": u"",
1693
u"approved_delay": u"0s",
1694
u"approved_duration": u"1s",
1695
}
1696
client_config = configparser.SafeConfigParser(client_defaults)
1697
client_config.read(os.path.join(server_settings[u"configdir"],
1698
u"clients.conf"))
2304
1699
2305
1700
global mandos_dbus_service
2306
1701
mandos_dbus_service = None
2307
1702
2308
tcp_server = MandosServer((server_settings["address"],
2309
server_settings["port"]),
1703
tcp_server = MandosServer((server_settings[u"address"],
1704
server_settings[u"port"]),
2310
1705
ClientHandler,
2311
interface=(server_settings["interface"]
2312
or None),
1706
interface=server_settings[u"interface"],
2313
1707
use_ipv6=use_ipv6,
2314
1708
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)
1709
server_settings[u"priority"],
1710
use_dbus=use_dbus)
1711
pidfilename = u"/var/run/mandos.pid"
1712
try:
1713
pidfile = open(pidfilename, u"w")
1714
except IOError:
1715
logger.error(u"Could not open file %r", pidfilename)
2327
1716
2328
for name in ("_mandos", "mandos", "nobody"):
1717
try:
1718
uid = pwd.getpwnam(u"_mandos").pw_uid
1719
gid = pwd.getpwnam(u"_mandos").pw_gid
1720
except KeyError:
2329
1721
try:
2330
uid = pwd.getpwnam(name).pw_uid
2331
gid = pwd.getpwnam(name).pw_gid
2332
break
1722
uid = pwd.getpwnam(u"mandos").pw_uid
1723
gid = pwd.getpwnam(u"mandos").pw_gid
2333
1724
except KeyError:
2334
continue
2335
else:
2336
uid = 65534
2337
gid = 65534
1725
try:
1726
uid = pwd.getpwnam(u"nobody").pw_uid
1727
gid = pwd.getpwnam(u"nobody").pw_gid
1728
except KeyError:
1729
uid = 65534
1730
gid = 65534
2338
1731
try:
2339
1732
os.setgid(gid)
2340
1733
os.setuid(uid)
2341
except OSError as error:
2342
if error.errno != errno.EPERM:
1734
except OSError, error:
1735
if error[0] != errno.EPERM:
2343
1736
raise error
2344
1737
1738
# Enable all possible GnuTLS debugging
2345
1739
if debug:
2346
# Enable all possible GnuTLS debugging
2347
2348
1740
# "Use a log level over 10 to enable all debugging options."
2349
1741
# - GnuTLS manual
2350
1742
gnutls.library.functions.gnutls_global_set_log_level(11)
2351
1743
2352
1744
@gnutls.library.types.gnutls_log_func
2353
1745
def debug_gnutls(level, string):
2354
logger.debug("GnuTLS: %s", string[:-1])
1746
logger.debug(u"GnuTLS: %s", string[:-1])
2355
1747
2356
1748
(gnutls.library.functions
2357
1749
.gnutls_global_set_log_function(debug_gnutls))
2358
2359
# Redirect stdin so all checkers get /dev/null
2360
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2361
os.dup2(null, sys.stdin.fileno())
2362
if null > 2:
2363
os.close(null)
2364
2365
# Need to fork before connecting to D-Bus
2366
if not foreground:
2367
# Close all input and output, do double fork, etc.
2368
daemon()
2369
2370
# multiprocessing will use threads, so before we use gobject we
2371
# need to inform gobject that threads will be used.
2372
gobject.threads_init()
2373
1750
2374
1751
global main_loop
2375
1752
# From the Avahi example code
2376
DBusGMainLoop(set_as_default=True)
1753
DBusGMainLoop(set_as_default=True )
2377
1754
main_loop = gobject.MainLoop()
2378
1755
bus = dbus.SystemBus()
2379
1756
# End of Avahi example code
2380
1757
if use_dbus:
2381
1758
try:
2382
bus_name = dbus.service.BusName("se.recompile.Mandos",
1759
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2383
1760
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)
1761
except dbus.exceptions.NameExistsException, e:
1762
logger.error(unicode(e) + u", disabling D-Bus")
2389
1763
use_dbus = False
2390
server_settings["use_dbus"] = False
1764
server_settings[u"use_dbus"] = False
2391
1765
tcp_server.use_dbus = False
2392
1766
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)
1767
service = AvahiService(name = server_settings[u"servicename"],
1768
servicetype = u"_mandos._tcp",
1769
protocol = protocol, bus = bus)
2397
1770
if server_settings["interface"]:
2398
1771
service.interface = (if_nametoindex
2399
(str(server_settings["interface"])))
2400
2401
global multiprocessing_manager
2402
multiprocessing_manager = multiprocessing.Manager()
1772
(str(server_settings[u"interface"])))
2403
1773
2404
1774
client_class = Client
2405
1775
if use_dbus:
2406
1776
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))
1777
def client_config_items(config, section):
1778
special_settings = {
1779
"approved_by_default":
1780
lambda: config.getboolean(section,
1781
"approved_by_default"),
1782
}
1783
for name, value in config.items(section):
2477
1784
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
1785
yield (name, special_settings[name]())
1786
except KeyError:
1787
yield (name, value)
1788
1789
tcp_server.clients.update(set(
1790
client_class(name = section,
1791
config= dict(client_config_items(
1792
client_config, section)))
1793
for section in client_config.sections()))
2502
1794
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)
1795
logger.warning(u"No clients defined")
1796
1797
if debug:
1798
# Redirect stdin so all checkers get /dev/null
1799
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1800
os.dup2(null, sys.stdin.fileno())
1801
if null > 2:
1802
os.close(null)
1803
else:
1804
# No console logging
1805
logger.removeHandler(console)
1806
# Close all input and output, do double fork, etc.
1807
daemon()
1808
1809
try:
1810
with pidfile:
1811
pid = os.getpid()
1812
pidfile.write(str(pid) + "\n")
2514
1813
del pidfile
2515
del pidfilename
1814
except IOError:
1815
logger.error(u"Could not write to file %r with PID %d",
1816
pidfilename, pid)
1817
except NameError:
1818
# "pidfile" was never created
1819
pass
1820
del pidfilename
2516
1821
1822
if not debug:
1823
signal.signal(signal.SIGINT, signal.SIG_IGN)
2517
1824
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2518
1825
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2519
1826
2520
1827
if use_dbus:
2521
@alternate_dbus_interfaces({"se.recompile.Mandos":
2522
"se.bsnet.fukt.Mandos"})
2523
class MandosDBusService(DBusObjectWithProperties):
1828
class MandosDBusService(dbus.service.Object):
2524
1829
"""A D-Bus proxy object"""
2525
1830
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")
1831
dbus.service.Object.__init__(self, bus, u"/")
1832
_interface = u"se.bsnet.fukt.Mandos"
1833
1834
@dbus.service.signal(_interface, signature=u"o")
2536
1835
def ClientAdded(self, objpath):
2537
1836
"D-Bus signal"
2538
1837
pass
2539
1838
2540
@dbus.service.signal(_interface, signature="ss")
1839
@dbus.service.signal(_interface, signature=u"ss")
2541
1840
def ClientNotFound(self, fingerprint, address):
2542
1841
"D-Bus signal"
2543
1842
pass
2544
1843
2545
@dbus.service.signal(_interface, signature="os")
1844
@dbus.service.signal(_interface, signature=u"os")
2546
1845
def ClientRemoved(self, objpath, name):
2547
1846
"D-Bus signal"
2548
1847
pass
2549
1848
2550
@dbus.service.method(_interface, out_signature="ao")
1849
@dbus.service.method(_interface, out_signature=u"ao")
2551
1850
def GetAllClients(self):
2552
1851
"D-Bus method"
2553
1852
return dbus.Array(c.dbus_object_path
2554
for c in
2555
tcp_server.clients.itervalues())
1853
for c in tcp_server.clients)
2556
1854
2557
1855
@dbus.service.method(_interface,
2558
out_signature="a{oa{sv}}")
1856
out_signature=u"a{oa{sv}}")
2559
1857
def GetAllClientsWithProperties(self):
2560
1858
"D-Bus method"
2561
1859
return dbus.Dictionary(
2562
((c.dbus_object_path, c.GetAll(""))
2563
for c in tcp_server.clients.itervalues()),
2564
signature="oa{sv}")
1860
((c.dbus_object_path, c.GetAll(u""))
1861
for c in tcp_server.clients),
1862
signature=u"oa{sv}")
2565
1863
2566
@dbus.service.method(_interface, in_signature="o")
1864
@dbus.service.method(_interface, in_signature=u"o")
2567
1865
def RemoveClient(self, object_path):
2568
1866
"D-Bus method"
2569
for c in tcp_server.clients.itervalues():
1867
for c in tcp_server.clients:
2570
1868
if c.dbus_object_path == object_path:
2571
del tcp_server.clients[c.name]
1869
tcp_server.clients.remove(c)
2572
1870
c.remove_from_connection()
2573
1871
# Don't signal anything except ClientRemoved
2574
1872
c.disable(quiet=True)
2585
1883
"Cleanup function; run on exit"
2586
1884
service.cleanup()
2587
1885
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
1886
while tcp_server.clients:
2644
name, client = tcp_server.clients.popitem()
1887
client = tcp_server.clients.pop()
2645
1888
if use_dbus:
2646
1889
client.remove_from_connection()
1890
client.disable_hook = None
2647
1891
# Don't signal anything except ClientRemoved
2648
1892
client.disable(quiet=True)
2649
1893
if use_dbus:
2650
1894
# Emit D-Bus signal
2651
mandos_dbus_service.ClientRemoved(client
2652
.dbus_object_path,
1895
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2653
1896
client.name)
2654
client_settings.clear()
2655
1897
2656
1898
atexit.register(cleanup)
2657
1899
2658
for client in tcp_server.clients.itervalues():
1900
for client in tcp_server.clients:
2659
1901
if use_dbus:
2660
1902
# Emit D-Bus signal
2661
1903
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2662
# Need to initiate checking of clients
2663
if client.enabled:
2664
client.init_checker()
1904
client.enable()
2665
1905
2666
1906
tcp_server.enable()
2667
1907
tcp_server.server_activate()
2669
1909
# Find out what port we got
2670
1910
service.port = tcp_server.socket.getsockname()[1]
2671
1911
if use_ipv6:
2672
logger.info("Now listening on address %r, port %d,"
2673
" flowinfo %d, scope_id %d",
2674
*tcp_server.socket.getsockname())
1912
logger.info(u"Now listening on address %r, port %d,"
1913
" flowinfo %d, scope_id %d"
1914
% tcp_server.socket.getsockname())
2675
1915
else: # IPv4
2676
logger.info("Now listening on address %r, port %d",
2677
*tcp_server.socket.getsockname())
1916
logger.info(u"Now listening on address %r, port %d"
1917
% tcp_server.socket.getsockname())
2678
1918
2679
1919
#service.interface = tcp_server.socket.getsockname()[3]
2680
1920
2682
1922
# From the Avahi example code
2683
1923
try:
2684
1924
service.activate()
2685
except dbus.exceptions.DBusException as error:
2686
logger.critical("D-Bus Exception", exc_info=error)
1925
except dbus.exceptions.DBusException, error:
1926
logger.critical(u"DBusException: %s", error)
2687
1927
cleanup()
2688
1928
sys.exit(1)
2689
1929
# End of Avahi example code
2693
1933
(tcp_server.handle_request
2694
1934
(*args[2:], **kwargs) or True))
2695
1935
2696
logger.debug("Starting main loop")
1936
logger.debug(u"Starting main loop")
2697
1937
main_loop.run()
2698
except AvahiError as error:
2699
logger.critical("Avahi Error", exc_info=error)
1938
except AvahiError, error:
1939
logger.critical(u"AvahiError: %s", error)
2700
1940
cleanup()
2701
1941
sys.exit(1)
2702
1942
except KeyboardInterrupt:
2703
1943
if debug:
2704
print("", file=sys.stderr)
2705
logger.debug("Server received KeyboardInterrupt")
2706
logger.debug("Server exiting")
1944
print >> sys.stderr
1945
logger.debug(u"Server received KeyboardInterrupt")
1946
logger.debug(u"Server exiting")
2707
1947
# Must run before the D-Bus bus name gets deregistered
2708
1948
cleanup()
2709
1949
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0