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- Committer: Teddy Hogeborn
- Date: 2012-05-26 22:56:38 UTC
- mfrom: (589.1.1 socket-option)
- Revision ID: teddy@recompile.se-20120526225638-4hvqyrvmj0036lfn
Merge "--socket" option for server.
This is suggested by the GNU Coding Standards' Table of Long Options,
and will probably also allow socket activation (e.g. by systemd(8)).
This is suggested by the GNU Coding Standards' Table of Long Options,
and will probably also allow socket activation (e.g. by systemd(8)).
- files added:
- 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 © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 Björn Påhlsson
14
# Copyright © 2008-2012 Teddy Hogeborn
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# Copyright © 2008-2012 Björn Påhlsson
16
16
#
17
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# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
31
# Contact the authors at <mandos@recompile.se>.
32
32
#
33
33
34
from __future__ import division, with_statement, absolute_import
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
37
from future_builtins import *
35
38
36
39
import SocketServer as socketserver
37
40
import socket
38
import optparse
41
import argparse
39
42
import datetime
40
43
import errno
41
44
import gnutls.crypto
60
63
import fcntl
61
64
import functools
62
65
import cPickle as pickle
63
import select
66
import multiprocessing
67
import types
68
import binascii
69
import tempfile
70
import itertools
64
71
65
72
import dbus
66
73
import dbus.service
71
78
import ctypes.util
72
79
import xml.dom.minidom
73
80
import inspect
81
import GnuPGInterface
74
82
75
83
try:
76
84
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
80
88
except ImportError:
81
89
SO_BINDTODEVICE = None
82
90
83
84
version = "1.0.14"
85
86
logger = logging.Logger(u'mandos')
91
version = "1.5.4"
92
stored_state_file = "clients.pickle"
93
94
logger = logging.getLogger()
87
95
syslogger = (logging.handlers.SysLogHandler
88
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
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)
97
address = str("/dev/log")))
98
99
try:
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
103
except (OSError, AttributeError):
104
def if_nametoindex(interface):
105
"Get an interface index the hard way, i.e. using fcntl()"
106
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
107
with contextlib.closing(socket.socket()) as s:
108
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
112
ifreq[16:20])[0]
113
return interface_index
114
115
116
def initlogger(debug, level=logging.WARNING):
117
"""init logger and add loglevel"""
118
119
syslogger.setFormatter(logging.Formatter
120
('Mandos [%(process)d]: %(levelname)s:'
121
' %(message)s'))
122
logger.addHandler(syslogger)
123
124
if debug:
125
console = logging.StreamHandler()
126
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
127
' [%(process)d]:'
128
' %(levelname)s:'
129
' %(message)s'))
130
logger.addHandler(console)
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logger.setLevel(level)
132
133
134
class PGPError(Exception):
135
"""Exception if encryption/decryption fails"""
136
pass
137
138
139
class PGPEngine(object):
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
141
def __init__(self):
142
self.gnupg = GnuPGInterface.GnuPG()
143
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
144
self.gnupg = GnuPGInterface.GnuPG()
145
self.gnupg.options.meta_interactive = False
146
self.gnupg.options.homedir = self.tempdir
147
self.gnupg.options.extra_args.extend(['--force-mdc',
148
'--quiet',
149
'--no-use-agent'])
150
151
def __enter__(self):
152
return self
153
154
def __exit__(self, exc_type, exc_value, traceback):
155
self._cleanup()
156
return False
157
158
def __del__(self):
159
self._cleanup()
160
161
def _cleanup(self):
162
if self.tempdir is not None:
163
# Delete contents of tempdir
164
for root, dirs, files in os.walk(self.tempdir,
165
topdown = False):
166
for filename in files:
167
os.remove(os.path.join(root, filename))
168
for dirname in dirs:
169
os.rmdir(os.path.join(root, dirname))
170
# Remove tempdir
171
os.rmdir(self.tempdir)
172
self.tempdir = None
173
174
def password_encode(self, password):
175
# Passphrase can not be empty and can not contain newlines or
176
# NUL bytes. So we prefix it and hex encode it.
177
return b"mandos" + binascii.hexlify(password)
178
179
def encrypt(self, data, password):
180
self.gnupg.passphrase = self.password_encode(password)
181
with open(os.devnull, "w") as devnull:
182
try:
183
proc = self.gnupg.run(['--symmetric'],
184
create_fhs=['stdin', 'stdout'],
185
attach_fhs={'stderr': devnull})
186
with contextlib.closing(proc.handles['stdin']) as f:
187
f.write(data)
188
with contextlib.closing(proc.handles['stdout']) as f:
189
ciphertext = f.read()
190
proc.wait()
191
except IOError as e:
192
raise PGPError(e)
193
self.gnupg.passphrase = None
194
return ciphertext
195
196
def decrypt(self, data, password):
197
self.gnupg.passphrase = self.password_encode(password)
198
with open(os.devnull, "w") as devnull:
199
try:
200
proc = self.gnupg.run(['--decrypt'],
201
create_fhs=['stdin', 'stdout'],
202
attach_fhs={'stderr': devnull})
203
with contextlib.closing(proc.handles['stdin']) as f:
204
f.write(data)
205
with contextlib.closing(proc.handles['stdout']) as f:
206
decrypted_plaintext = f.read()
207
proc.wait()
208
except IOError as e:
209
raise PGPError(e)
210
self.gnupg.passphrase = None
211
return decrypted_plaintext
212
100
213
101
214
class AvahiError(Exception):
102
215
def __init__(self, value, *args, **kwargs):
118
231
Attributes:
119
232
interface: integer; avahi.IF_UNSPEC or an interface index.
120
233
Used to optionally bind to the specified interface.
121
name: string; Example: u'Mandos'
122
type: string; Example: u'_mandos._tcp'.
234
name: string; Example: 'Mandos'
235
type: string; Example: '_mandos._tcp'.
123
236
See <http://www.dns-sd.org/ServiceTypes.html>
124
237
port: integer; what port to announce
125
238
TXT: list of strings; TXT record for the service
132
245
server: D-Bus Server
133
246
bus: dbus.SystemBus()
134
247
"""
248
135
249
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
136
250
servicetype = None, port = None, TXT = None,
137
domain = u"", host = u"", max_renames = 32768,
251
domain = "", host = "", max_renames = 32768,
138
252
protocol = avahi.PROTO_UNSPEC, bus = None):
139
253
self.interface = interface
140
254
self.name = name
149
263
self.group = None # our entry group
150
264
self.server = None
151
265
self.bus = bus
266
self.entry_group_state_changed_match = None
267
152
268
def rename(self):
153
269
"""Derived from the Avahi example code"""
154
270
if self.rename_count >= self.max_renames:
155
logger.critical(u"No suitable Zeroconf service name found"
156
u" after %i retries, exiting.",
271
logger.critical("No suitable Zeroconf service name found"
272
" after %i retries, exiting.",
157
273
self.rename_count)
158
raise AvahiServiceError(u"Too many renames")
159
self.name = self.server.GetAlternativeServiceName(self.name)
160
logger.info(u"Changing Zeroconf service name to %r ...",
161
unicode(self.name))
162
syslogger.setFormatter(logging.Formatter
163
(u'Mandos (%s) [%%(process)d]:'
164
u' %%(levelname)s: %%(message)s'
165
% self.name))
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)
166
279
self.remove()
167
self.add()
280
try:
281
self.add()
282
except dbus.exceptions.DBusException as error:
283
logger.critical("D-Bus Exception", exc_info=error)
284
self.cleanup()
285
os._exit(1)
168
286
self.rename_count += 1
287
169
288
def remove(self):
170
289
"""Derived from the Avahi example code"""
290
if self.entry_group_state_changed_match is not None:
291
self.entry_group_state_changed_match.remove()
292
self.entry_group_state_changed_match = None
171
293
if self.group is not None:
172
294
self.group.Reset()
295
173
296
def add(self):
174
297
"""Derived from the Avahi example code"""
298
self.remove()
175
299
if self.group is None:
176
300
self.group = dbus.Interface(
177
301
self.bus.get_object(avahi.DBUS_NAME,
178
302
self.server.EntryGroupNew()),
179
303
avahi.DBUS_INTERFACE_ENTRY_GROUP)
180
self.group.connect_to_signal('StateChanged',
181
self
182
.entry_group_state_changed)
183
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
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' ...",
184
308
self.name, self.type)
185
309
self.group.AddService(
186
310
self.interface,
191
315
dbus.UInt16(self.port),
192
316
avahi.string_array_to_txt_array(self.TXT))
193
317
self.group.Commit()
318
194
319
def entry_group_state_changed(self, state, error):
195
320
"""Derived from the Avahi example code"""
196
logger.debug(u"Avahi state change: %i", state)
321
logger.debug("Avahi entry group state change: %i", state)
197
322
198
323
if state == avahi.ENTRY_GROUP_ESTABLISHED:
199
logger.debug(u"Zeroconf service established.")
324
logger.debug("Zeroconf service established.")
200
325
elif state == avahi.ENTRY_GROUP_COLLISION:
201
logger.warning(u"Zeroconf service name collision.")
326
logger.info("Zeroconf service name collision.")
202
327
self.rename()
203
328
elif state == avahi.ENTRY_GROUP_FAILURE:
204
logger.critical(u"Avahi: Error in group state changed %s",
329
logger.critical("Avahi: Error in group state changed %s",
205
330
unicode(error))
206
raise AvahiGroupError(u"State changed: %s"
207
% unicode(error))
331
raise AvahiGroupError("State changed: {0!s}"
332
.format(error))
333
208
334
def cleanup(self):
209
335
"""Derived from the Avahi example code"""
210
336
if self.group is not None:
211
self.group.Free()
337
try:
338
self.group.Free()
339
except (dbus.exceptions.UnknownMethodException,
340
dbus.exceptions.DBusException):
341
pass
212
342
self.group = None
213
def server_state_changed(self, state):
343
self.remove()
344
345
def server_state_changed(self, state, error=None):
214
346
"""Derived from the Avahi example code"""
215
if state == avahi.SERVER_COLLISION:
216
logger.error(u"Zeroconf server name collision")
217
self.remove()
347
logger.debug("Avahi server state change: %i", state)
348
bad_states = { avahi.SERVER_INVALID:
349
"Zeroconf server invalid",
350
avahi.SERVER_REGISTERING: None,
351
avahi.SERVER_COLLISION:
352
"Zeroconf server name collision",
353
avahi.SERVER_FAILURE:
354
"Zeroconf server failure" }
355
if state in bad_states:
356
if bad_states[state] is not None:
357
if error is None:
358
logger.error(bad_states[state])
359
else:
360
logger.error(bad_states[state] + ": %r", error)
361
self.cleanup()
218
362
elif state == avahi.SERVER_RUNNING:
219
363
self.add()
364
else:
365
if error is None:
366
logger.debug("Unknown state: %r", state)
367
else:
368
logger.debug("Unknown state: %r: %r", state, error)
369
220
370
def activate(self):
221
371
"""Derived from the Avahi example code"""
222
372
if self.server is None:
223
373
self.server = dbus.Interface(
224
374
self.bus.get_object(avahi.DBUS_NAME,
225
avahi.DBUS_PATH_SERVER),
375
avahi.DBUS_PATH_SERVER,
376
follow_name_owner_changes=True),
226
377
avahi.DBUS_INTERFACE_SERVER)
227
self.server.connect_to_signal(u"StateChanged",
378
self.server.connect_to_signal("StateChanged",
228
379
self.server_state_changed)
229
380
self.server_state_changed(self.server.GetState())
230
381
231
382
383
class AvahiServiceToSyslog(AvahiService):
384
def rename(self):
385
"""Add the new name to the syslog messages"""
386
ret = AvahiService.rename(self)
387
syslogger.setFormatter(logging.Formatter
388
('Mandos ({0}) [%(process)d]:'
389
' %(levelname)s: %(message)s'
390
.format(self.name)))
391
return ret
392
393
394
def timedelta_to_milliseconds(td):
395
"Convert a datetime.timedelta() to milliseconds"
396
return ((td.days * 24 * 60 * 60 * 1000)
397
+ (td.seconds * 1000)
398
+ (td.microseconds // 1000))
399
400
232
401
class Client(object):
233
402
"""A representation of a client host served by this server.
234
403
235
404
Attributes:
236
name: string; from the config file, used in log messages and
237
D-Bus identifiers
405
approved: bool(); 'None' if not yet approved/disapproved
406
approval_delay: datetime.timedelta(); Time to wait for approval
407
approval_duration: datetime.timedelta(); Duration of one approval
408
checker: subprocess.Popen(); a running checker process used
409
to see if the client lives.
410
'None' if no process is running.
411
checker_callback_tag: a gobject event source tag, or None
412
checker_command: string; External command which is run to check
413
if client lives. %() expansions are done at
414
runtime with vars(self) as dict, so that for
415
instance %(name)s can be used in the command.
416
checker_initiator_tag: a gobject event source tag, or None
417
created: datetime.datetime(); (UTC) object creation
418
client_structure: Object describing what attributes a client has
419
and is used for storing the client at exit
420
current_checker_command: string; current running checker_command
421
disable_initiator_tag: a gobject event source tag, or None
422
enabled: bool()
238
423
fingerprint: string (40 or 32 hexadecimal digits); used to
239
424
uniquely identify the client
240
secret: bytestring; sent verbatim (over TLS) to client
241
425
host: string; available for use by the checker command
242
created: datetime.datetime(); (UTC) object creation
243
last_enabled: datetime.datetime(); (UTC)
244
enabled: bool()
426
interval: datetime.timedelta(); How often to start a new checker
427
last_approval_request: datetime.datetime(); (UTC) or None
245
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
246
436
timeout: datetime.timedelta(); How long from last_checked_ok
247
437
until this client is disabled
248
interval: datetime.timedelta(); How often to start a new checker
249
disable_hook: If set, called by disable() as disable_hook(self)
250
checker: subprocess.Popen(); a running checker process used
251
to see if the client lives.
252
'None' if no process is running.
253
checker_initiator_tag: a gobject event source tag, or None
254
disable_initiator_tag: - '' -
255
checker_callback_tag: - '' -
256
checker_command: string; External command which is run to check if
257
client lives. %() expansions are done at
258
runtime with vars(self) as dict, so that for
259
instance %(name)s can be used in the command.
260
current_checker_command: string; current running checker_command
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
261
442
"""
262
443
263
@staticmethod
264
def _timedelta_to_milliseconds(td):
265
"Convert a datetime.timedelta() to milliseconds"
266
return ((td.days * 24 * 60 * 60 * 1000)
267
+ (td.seconds * 1000)
268
+ (td.microseconds // 1000))
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
}
269
459
270
460
def timeout_milliseconds(self):
271
461
"Return the 'timeout' attribute in milliseconds"
272
return self._timedelta_to_milliseconds(self.timeout)
462
return timedelta_to_milliseconds(self.timeout)
463
464
def extended_timeout_milliseconds(self):
465
"Return the 'extended_timeout' attribute in milliseconds"
466
return timedelta_to_milliseconds(self.extended_timeout)
273
467
274
468
def interval_milliseconds(self):
275
469
"Return the 'interval' attribute in milliseconds"
276
return self._timedelta_to_milliseconds(self.interval)
277
278
def __init__(self, name = None, disable_hook=None, config=None):
279
"""Note: the 'checker' key in 'config' sets the
280
'checker_command' attribute and *not* the 'checker'
281
attribute."""
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):
282
523
self.name = name
283
if config is None:
284
config = {}
285
logger.debug(u"Creating client %r", self.name)
524
# adding all client settings
525
for setting, value in settings.iteritems():
526
setattr(self, setting, value)
527
528
if self.enabled:
529
if not hasattr(self, "last_enabled"):
530
self.last_enabled = datetime.datetime.utcnow()
531
if not hasattr(self, "expires"):
532
self.expires = (datetime.datetime.utcnow()
533
+ self.timeout)
534
else:
535
self.last_enabled = None
536
self.expires = None
537
538
logger.debug("Creating client %r", self.name)
286
539
# Uppercase and remove spaces from fingerprint for later
287
540
# comparison purposes with return value from the fingerprint()
288
541
# function
289
self.fingerprint = (config[u"fingerprint"].upper()
290
.replace(u" ", u""))
291
logger.debug(u" Fingerprint: %s", self.fingerprint)
292
if u"secret" in config:
293
self.secret = config[u"secret"].decode(u"base64")
294
elif u"secfile" in config:
295
with open(os.path.expanduser(os.path.expandvars
296
(config[u"secfile"])),
297
"rb") as secfile:
298
self.secret = secfile.read()
299
else:
300
raise TypeError(u"No secret or secfile for client %s"
301
% self.name)
302
self.host = config.get(u"host", u"")
303
self.created = datetime.datetime.utcnow()
304
self.enabled = False
305
self.last_enabled = None
306
self.last_checked_ok = None
307
self.timeout = string_to_delta(config[u"timeout"])
308
self.interval = string_to_delta(config[u"interval"])
309
self.disable_hook = disable_hook
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
310
547
self.checker = None
311
548
self.checker_initiator_tag = None
312
549
self.disable_initiator_tag = None
313
550
self.checker_callback_tag = None
314
self.checker_command = config[u"checker"]
315
551
self.current_checker_command = None
316
self.last_connect = None
552
self.approved = None
553
self.approvals_pending = 0
554
self.changedstate = (multiprocessing_manager
555
.Condition(multiprocessing_manager
556
.Lock()))
557
self.client_structure = [attr for attr in
558
self.__dict__.iterkeys()
559
if not attr.startswith("_")]
560
self.client_structure.append("client_structure")
561
562
for name, t in inspect.getmembers(type(self),
563
lambda obj:
564
isinstance(obj,
565
property)):
566
if not name.startswith("_"):
567
self.client_structure.append(name)
568
569
# Send notice to process children that client state has changed
570
def send_changedstate(self):
571
with self.changedstate:
572
self.changedstate.notify_all()
317
573
318
574
def enable(self):
319
575
"""Start this client's checker and timeout hooks"""
320
if getattr(self, u"enabled", False):
576
if getattr(self, "enabled", False):
321
577
# Already enabled
322
578
return
579
self.expires = datetime.datetime.utcnow() + self.timeout
580
self.enabled = True
323
581
self.last_enabled = datetime.datetime.utcnow()
582
self.init_checker()
583
self.send_changedstate()
584
585
def disable(self, quiet=True):
586
"""Disable this client."""
587
if not getattr(self, "enabled", False):
588
return False
589
if not quiet:
590
logger.info("Disabling client %s", self.name)
591
if getattr(self, "disable_initiator_tag", None) is not None:
592
gobject.source_remove(self.disable_initiator_tag)
593
self.disable_initiator_tag = None
594
self.expires = None
595
if getattr(self, "checker_initiator_tag", None) is not None:
596
gobject.source_remove(self.checker_initiator_tag)
597
self.checker_initiator_tag = None
598
self.stop_checker()
599
self.enabled = False
600
if not quiet:
601
self.send_changedstate()
602
# Do not run this again if called by a gobject.timeout_add
603
return False
604
605
def __del__(self):
606
self.disable()
607
608
def init_checker(self):
324
609
# Schedule a new checker to be started an 'interval' from now,
325
610
# and every interval from then on.
611
if self.checker_initiator_tag is not None:
612
gobject.source_remove(self.checker_initiator_tag)
326
613
self.checker_initiator_tag = (gobject.timeout_add
327
614
(self.interval_milliseconds(),
328
615
self.start_checker))
329
616
# Schedule a disable() when 'timeout' has passed
617
if self.disable_initiator_tag is not None:
618
gobject.source_remove(self.disable_initiator_tag)
330
619
self.disable_initiator_tag = (gobject.timeout_add
331
620
(self.timeout_milliseconds(),
332
621
self.disable))
333
self.enabled = True
334
622
# Also start a new checker *right now*.
335
623
self.start_checker()
336
624
337
def disable(self, quiet=True):
338
"""Disable this client."""
339
if not getattr(self, "enabled", False):
340
return False
341
if not quiet:
342
logger.info(u"Disabling client %s", self.name)
343
if getattr(self, u"disable_initiator_tag", False):
344
gobject.source_remove(self.disable_initiator_tag)
345
self.disable_initiator_tag = None
346
if getattr(self, u"checker_initiator_tag", False):
347
gobject.source_remove(self.checker_initiator_tag)
348
self.checker_initiator_tag = None
349
self.stop_checker()
350
if self.disable_hook:
351
self.disable_hook(self)
352
self.enabled = False
353
# Do not run this again if called by a gobject.timeout_add
354
return False
355
356
def __del__(self):
357
self.disable_hook = None
358
self.disable()
359
360
625
def checker_callback(self, pid, condition, command):
361
626
"""The checker has completed, so take appropriate actions."""
362
627
self.checker_callback_tag = None
363
628
self.checker = None
364
629
if os.WIFEXITED(condition):
365
exitstatus = os.WEXITSTATUS(condition)
366
if exitstatus == 0:
367
logger.info(u"Checker for %(name)s succeeded",
630
self.last_checker_status = os.WEXITSTATUS(condition)
631
if self.last_checker_status == 0:
632
logger.info("Checker for %(name)s succeeded",
368
633
vars(self))
369
634
self.checked_ok()
370
635
else:
371
logger.info(u"Checker for %(name)s failed",
636
logger.info("Checker for %(name)s failed",
372
637
vars(self))
373
638
else:
374
logger.warning(u"Checker for %(name)s crashed?",
639
self.last_checker_status = -1
640
logger.warning("Checker for %(name)s crashed?",
375
641
vars(self))
376
642
377
643
def checked_ok(self):
378
"""Bump up the timeout for this client.
379
380
This should only be called when the client has been seen,
381
alive and well.
382
"""
644
"""Assert that the client has been seen, alive and well."""
383
645
self.last_checked_ok = datetime.datetime.utcnow()
384
gobject.source_remove(self.disable_initiator_tag)
385
self.disable_initiator_tag = (gobject.timeout_add
386
(self.timeout_milliseconds(),
387
self.disable))
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()
388
664
389
665
def start_checker(self):
390
666
"""Start a new checker subprocess if one is not running.
392
668
If a checker already exists, leave it running and do
393
669
nothing."""
394
670
# The reason for not killing a running checker is that if we
395
# did that, then if a checker (for some reason) started
396
# running slowly and taking more than 'interval' time, the
397
# client would inevitably timeout, since no checker would get
398
# a chance to run to completion. If we instead leave running
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
399
675
# checkers alone, the checker would have to take more time
400
676
# than 'timeout' for the client to be disabled, which is as it
401
677
# should be.
403
679
# If a checker exists, make sure it is not a zombie
404
680
try:
405
681
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
406
except (AttributeError, OSError), error:
682
except (AttributeError, OSError) as error:
407
683
if (isinstance(error, OSError)
408
684
and error.errno != errno.ECHILD):
409
685
raise error
410
686
else:
411
687
if pid:
412
logger.warning(u"Checker was a zombie")
688
logger.warning("Checker was a zombie")
413
689
gobject.source_remove(self.checker_callback_tag)
414
690
self.checker_callback(pid, status,
415
691
self.current_checker_command)
416
692
# Start a new checker if needed
417
693
if self.checker is None:
694
# Escape attributes for the shell
695
escaped_attrs = dict(
696
(attr, re.escape(unicode(getattr(self, attr))))
697
for attr in
698
self.runtime_expansions)
418
699
try:
419
# In case checker_command has exactly one % operator
420
command = self.checker_command % self.host
421
except TypeError:
422
# Escape attributes for the shell
423
escaped_attrs = dict((key,
424
re.escape(unicode(str(val),
425
errors=
426
u'replace')))
427
for key, val in
428
vars(self).iteritems())
429
try:
430
command = self.checker_command % escaped_attrs
431
except TypeError, error:
432
logger.error(u'Could not format string "%s":'
433
u' %s', self.checker_command, error)
434
return True # Try again later
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
435
705
self.current_checker_command = command
436
706
try:
437
logger.info(u"Starting checker %r for %s",
707
logger.info("Starting checker %r for %s",
438
708
command, self.name)
439
709
# We don't need to redirect stdout and stderr, since
440
710
# in normal mode, that is already done by daemon(),
442
712
# always replaced by /dev/null.)
443
713
self.checker = subprocess.Popen(command,
444
714
close_fds=True,
445
shell=True, cwd=u"/")
446
self.checker_callback_tag = (gobject.child_watch_add
447
(self.checker.pid,
448
self.checker_callback,
449
data=command))
450
# The checker may have completed before the gobject
451
# watch was added. Check for this.
452
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
453
if pid:
454
gobject.source_remove(self.checker_callback_tag)
455
self.checker_callback(pid, status, command)
456
except OSError, error:
457
logger.error(u"Failed to start subprocess: %s",
458
error)
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)
459
729
# Re-run this periodically if run by gobject.timeout_add
460
730
return True
461
731
464
734
if self.checker_callback_tag:
465
735
gobject.source_remove(self.checker_callback_tag)
466
736
self.checker_callback_tag = None
467
if getattr(self, u"checker", None) is None:
737
if getattr(self, "checker", None) is None:
468
738
return
469
logger.debug(u"Stopping checker for %(name)s", vars(self))
739
logger.debug("Stopping checker for %(name)s", vars(self))
470
740
try:
471
os.kill(self.checker.pid, signal.SIGTERM)
741
self.checker.terminate()
472
742
#time.sleep(0.5)
473
743
#if self.checker.poll() is None:
474
# os.kill(self.checker.pid, signal.SIGKILL)
475
except OSError, error:
744
# self.checker.kill()
745
except OSError as error:
476
746
if error.errno != errno.ESRCH: # No such process
477
747
raise
478
748
self.checker = None
479
749
480
750
481
def dbus_service_property(dbus_interface, signature=u"v",
482
access=u"readwrite", byte_arrays=False):
751
def dbus_service_property(dbus_interface, signature="v",
752
access="readwrite", byte_arrays=False):
483
753
"""Decorators for marking methods of a DBusObjectWithProperties to
484
754
become properties on the D-Bus.
485
755
492
762
"""
493
763
# Encoding deeply encoded byte arrays is not supported yet by the
494
764
# "Set" method, so we fail early here:
495
if byte_arrays and signature != u"ay":
496
raise ValueError(u"Byte arrays not supported for non-'ay'"
497
u" signature %r" % signature)
765
if byte_arrays and signature != "ay":
766
raise ValueError("Byte arrays not supported for non-'ay'"
767
" signature {0!r}".format(signature))
498
768
def decorator(func):
499
769
func._dbus_is_property = True
500
770
func._dbus_interface = dbus_interface
501
771
func._dbus_signature = signature
502
772
func._dbus_access = access
503
773
func._dbus_name = func.__name__
504
if func._dbus_name.endswith(u"_dbus_property"):
774
if func._dbus_name.endswith("_dbus_property"):
505
775
func._dbus_name = func._dbus_name[:-14]
506
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
776
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
777
return func
778
return decorator
779
780
781
def dbus_interface_annotations(dbus_interface):
782
"""Decorator for marking functions returning interface annotations
783
784
Usage:
785
786
@dbus_interface_annotations("org.example.Interface")
787
def _foo(self): # Function name does not matter
788
return {"org.freedesktop.DBus.Deprecated": "true",
789
"org.freedesktop.DBus.Property.EmitsChangedSignal":
790
"false"}
791
"""
792
def decorator(func):
793
func._dbus_is_interface = True
794
func._dbus_interface = dbus_interface
795
func._dbus_name = dbus_interface
796
return func
797
return decorator
798
799
800
def dbus_annotations(annotations):
801
"""Decorator to annotate D-Bus methods, signals or properties
802
Usage:
803
804
@dbus_service_property("org.example.Interface", signature="b",
805
access="r")
806
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
807
"org.freedesktop.DBus.Property."
808
"EmitsChangedSignal": "false"})
809
def Property_dbus_property(self):
810
return dbus.Boolean(False)
811
"""
812
def decorator(func):
813
func._dbus_annotations = annotations
507
814
return func
508
815
return decorator
509
816
529
836
530
837
class DBusObjectWithProperties(dbus.service.Object):
531
838
"""A D-Bus object with properties.
532
839
533
840
Classes inheriting from this can use the dbus_service_property
534
841
decorator to expose methods as D-Bus properties. It exposes the
535
842
standard Get(), Set(), and GetAll() methods on the D-Bus.
536
843
"""
537
844
538
845
@staticmethod
539
def _is_dbus_property(obj):
540
return getattr(obj, u"_dbus_is_property", False)
846
def _is_dbus_thing(thing):
847
"""Returns a function testing if an attribute is a D-Bus thing
848
849
If called like _is_dbus_thing("method") it returns a function
850
suitable for use as predicate to inspect.getmembers().
851
"""
852
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
853
False)
541
854
542
def _get_all_dbus_properties(self):
855
def _get_all_dbus_things(self, thing):
543
856
"""Returns a generator of (name, attribute) pairs
544
857
"""
545
return ((prop._dbus_name, prop)
546
for name, prop in
547
inspect.getmembers(self, self._is_dbus_property))
858
return ((getattr(athing.__get__(self), "_dbus_name",
859
name),
860
athing.__get__(self))
861
for cls in self.__class__.__mro__
862
for name, athing in
863
inspect.getmembers(cls,
864
self._is_dbus_thing(thing)))
548
865
549
866
def _get_dbus_property(self, interface_name, property_name):
550
867
"""Returns a bound method if one exists which is a D-Bus
551
868
property with the specified name and interface.
552
869
"""
553
for name in (property_name,
554
property_name + u"_dbus_property"):
555
prop = getattr(self, name, None)
556
if (prop is None
557
or not self._is_dbus_property(prop)
558
or prop._dbus_name != property_name
559
or (interface_name and prop._dbus_interface
560
and interface_name != prop._dbus_interface)):
561
continue
562
return prop
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
563
878
# No such property
564
raise DBusPropertyNotFound(self.dbus_object_path + u":"
565
+ interface_name + u"."
879
raise DBusPropertyNotFound(self.dbus_object_path + ":"
880
+ interface_name + "."
566
881
+ property_name)
567
882
568
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
569
out_signature=u"v")
883
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
884
out_signature="v")
570
885
def Get(self, interface_name, property_name):
571
886
"""Standard D-Bus property Get() method, see D-Bus standard.
572
887
"""
573
888
prop = self._get_dbus_property(interface_name, property_name)
574
if prop._dbus_access == u"write":
889
if prop._dbus_access == "write":
575
890
raise DBusPropertyAccessException(property_name)
576
891
value = prop()
577
if not hasattr(value, u"variant_level"):
892
if not hasattr(value, "variant_level"):
578
893
return value
579
894
return type(value)(value, variant_level=value.variant_level+1)
580
895
581
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
896
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
582
897
def Set(self, interface_name, property_name, value):
583
898
"""Standard D-Bus property Set() method, see D-Bus standard.
584
899
"""
585
900
prop = self._get_dbus_property(interface_name, property_name)
586
if prop._dbus_access == u"read":
901
if prop._dbus_access == "read":
587
902
raise DBusPropertyAccessException(property_name)
588
if prop._dbus_get_args_options[u"byte_arrays"]:
903
if prop._dbus_get_args_options["byte_arrays"]:
589
904
# The byte_arrays option is not supported yet on
590
905
# signatures other than "ay".
591
if prop._dbus_signature != u"ay":
906
if prop._dbus_signature != "ay":
592
907
raise ValueError
593
value = dbus.ByteArray(''.join(unichr(byte)
594
for byte in value))
908
value = dbus.ByteArray(b''.join(chr(byte)
909
for byte in value))
595
910
prop(value)
596
911
597
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
598
out_signature=u"a{sv}")
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
913
out_signature="a{sv}")
599
914
def GetAll(self, interface_name):
600
915
"""Standard D-Bus property GetAll() method, see D-Bus
601
916
standard.
602
917
603
918
Note: Will not include properties with access="write".
604
919
"""
605
all = {}
606
for name, prop in self._get_all_dbus_properties():
920
properties = {}
921
for name, prop in self._get_all_dbus_things("property"):
607
922
if (interface_name
608
923
and interface_name != prop._dbus_interface):
609
924
# Interface non-empty but did not match
610
925
continue
611
926
# Ignore write-only properties
612
if prop._dbus_access == u"write":
927
if prop._dbus_access == "write":
613
928
continue
614
929
value = prop()
615
if not hasattr(value, u"variant_level"):
616
all[name] = value
930
if not hasattr(value, "variant_level"):
931
properties[name] = value
617
932
continue
618
all[name] = type(value)(value, variant_level=
619
value.variant_level+1)
620
return dbus.Dictionary(all, signature=u"sv")
933
properties[name] = type(value)(value, variant_level=
934
value.variant_level+1)
935
return dbus.Dictionary(properties, signature="sv")
621
936
622
937
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
623
out_signature=u"s",
938
out_signature="s",
624
939
path_keyword='object_path',
625
940
connection_keyword='connection')
626
941
def Introspect(self, object_path, connection):
627
"""Standard D-Bus method, overloaded to insert property tags.
942
"""Overloading of standard D-Bus method.
943
944
Inserts property tags and interface annotation tags.
628
945
"""
629
946
xmlstring = dbus.service.Object.Introspect(self, object_path,
630
947
connection)
631
948
try:
632
949
document = xml.dom.minidom.parseString(xmlstring)
633
950
def make_tag(document, name, prop):
634
e = document.createElement(u"property")
635
e.setAttribute(u"name", name)
636
e.setAttribute(u"type", prop._dbus_signature)
637
e.setAttribute(u"access", prop._dbus_access)
951
e = document.createElement("property")
952
e.setAttribute("name", name)
953
e.setAttribute("type", prop._dbus_signature)
954
e.setAttribute("access", prop._dbus_access)
638
955
return e
639
for if_tag in document.getElementsByTagName(u"interface"):
956
for if_tag in document.getElementsByTagName("interface"):
957
# Add property tags
640
958
for tag in (make_tag(document, name, prop)
641
959
for name, prop
642
in self._get_all_dbus_properties()
960
in self._get_all_dbus_things("property")
643
961
if prop._dbus_interface
644
== if_tag.getAttribute(u"name")):
962
== if_tag.getAttribute("name")):
645
963
if_tag.appendChild(tag)
964
# Add annotation tags
965
for typ in ("method", "signal", "property"):
966
for tag in if_tag.getElementsByTagName(typ):
967
annots = dict()
968
for name, prop in (self.
969
_get_all_dbus_things(typ)):
970
if (name == tag.getAttribute("name")
971
and prop._dbus_interface
972
== if_tag.getAttribute("name")):
973
annots.update(getattr
974
(prop,
975
"_dbus_annotations",
976
{}))
977
for name, value in annots.iteritems():
978
ann_tag = document.createElement(
979
"annotation")
980
ann_tag.setAttribute("name", name)
981
ann_tag.setAttribute("value", value)
982
tag.appendChild(ann_tag)
983
# Add interface annotation tags
984
for annotation, value in dict(
985
itertools.chain.from_iterable(
986
annotations().iteritems()
987
for name, annotations in
988
self._get_all_dbus_things("interface")
989
if name == if_tag.getAttribute("name")
990
)).iteritems():
991
ann_tag = document.createElement("annotation")
992
ann_tag.setAttribute("name", annotation)
993
ann_tag.setAttribute("value", value)
994
if_tag.appendChild(ann_tag)
646
995
# Add the names to the return values for the
647
996
# "org.freedesktop.DBus.Properties" methods
648
if (if_tag.getAttribute(u"name")
649
== u"org.freedesktop.DBus.Properties"):
650
for cn in if_tag.getElementsByTagName(u"method"):
651
if cn.getAttribute(u"name") == u"Get":
652
for arg in cn.getElementsByTagName(u"arg"):
653
if (arg.getAttribute(u"direction")
654
== u"out"):
655
arg.setAttribute(u"name", u"value")
656
elif cn.getAttribute(u"name") == u"GetAll":
657
for arg in cn.getElementsByTagName(u"arg"):
658
if (arg.getAttribute(u"direction")
659
== u"out"):
660
arg.setAttribute(u"name", u"props")
661
xmlstring = document.toxml(u"utf-8")
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")
662
1011
document.unlink()
663
1012
except (AttributeError, xml.dom.DOMException,
664
xml.parsers.expat.ExpatError), error:
665
logger.error(u"Failed to override Introspection method",
666
error)
1013
xml.parsers.expat.ExpatError) as error:
1014
logger.error("Failed to override Introspection method",
1015
exc_info=error)
667
1016
return xmlstring
668
1017
669
1018
1019
def datetime_to_dbus(dt, variant_level=0):
1020
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1021
if dt is None:
1022
return dbus.String("", variant_level = variant_level)
1023
return dbus.String(dt.isoformat(),
1024
variant_level=variant_level)
1025
1026
1027
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1028
"""A class decorator; applied to a subclass of
1029
dbus.service.Object, it will add alternate D-Bus attributes with
1030
interface names according to the "alt_interface_names" mapping.
1031
Usage:
1032
1033
@alternate_dbus_interfaces({"org.example.Interface":
1034
"net.example.AlternateInterface"})
1035
class SampleDBusObject(dbus.service.Object):
1036
@dbus.service.method("org.example.Interface")
1037
def SampleDBusMethod():
1038
pass
1039
1040
The above "SampleDBusMethod" on "SampleDBusObject" will be
1041
reachable via two interfaces: "org.example.Interface" and
1042
"net.example.AlternateInterface", the latter of which will have
1043
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1044
"true", unless "deprecate" is passed with a False value.
1045
1046
This works for methods and signals, and also for D-Bus properties
1047
(from DBusObjectWithProperties) and interfaces (from the
1048
dbus_interface_annotations decorator).
1049
"""
1050
def wrapper(cls):
1051
for orig_interface_name, alt_interface_name in (
1052
alt_interface_names.iteritems()):
1053
attr = {}
1054
interface_names = set()
1055
# Go though all attributes of the class
1056
for attrname, attribute in inspect.getmembers(cls):
1057
# Ignore non-D-Bus attributes, and D-Bus attributes
1058
# with the wrong interface name
1059
if (not hasattr(attribute, "_dbus_interface")
1060
or not attribute._dbus_interface
1061
.startswith(orig_interface_name)):
1062
continue
1063
# Create an alternate D-Bus interface name based on
1064
# the current name
1065
alt_interface = (attribute._dbus_interface
1066
.replace(orig_interface_name,
1067
alt_interface_name))
1068
interface_names.add(alt_interface)
1069
# Is this a D-Bus signal?
1070
if getattr(attribute, "_dbus_is_signal", False):
1071
# Extract the original non-method function by
1072
# black magic
1073
nonmethod_func = (dict(
1074
zip(attribute.func_code.co_freevars,
1075
attribute.__closure__))["func"]
1076
.cell_contents)
1077
# Create a new, but exactly alike, function
1078
# object, and decorate it to be a new D-Bus signal
1079
# with the alternate D-Bus interface name
1080
new_function = (dbus.service.signal
1081
(alt_interface,
1082
attribute._dbus_signature)
1083
(types.FunctionType(
1084
nonmethod_func.func_code,
1085
nonmethod_func.func_globals,
1086
nonmethod_func.func_name,
1087
nonmethod_func.func_defaults,
1088
nonmethod_func.func_closure)))
1089
# Copy annotations, if any
1090
try:
1091
new_function._dbus_annotations = (
1092
dict(attribute._dbus_annotations))
1093
except AttributeError:
1094
pass
1095
# Define a creator of a function to call both the
1096
# original and alternate functions, so both the
1097
# original and alternate signals gets sent when
1098
# the function is called
1099
def fixscope(func1, func2):
1100
"""This function is a scope container to pass
1101
func1 and func2 to the "call_both" function
1102
outside of its arguments"""
1103
def call_both(*args, **kwargs):
1104
"""This function will emit two D-Bus
1105
signals by calling func1 and func2"""
1106
func1(*args, **kwargs)
1107
func2(*args, **kwargs)
1108
return call_both
1109
# Create the "call_both" function and add it to
1110
# the class
1111
attr[attrname] = fixscope(attribute, new_function)
1112
# Is this a D-Bus method?
1113
elif getattr(attribute, "_dbus_is_method", False):
1114
# Create a new, but exactly alike, function
1115
# object. Decorate it to be a new D-Bus method
1116
# with the alternate D-Bus interface name. Add it
1117
# to the class.
1118
attr[attrname] = (dbus.service.method
1119
(alt_interface,
1120
attribute._dbus_in_signature,
1121
attribute._dbus_out_signature)
1122
(types.FunctionType
1123
(attribute.func_code,
1124
attribute.func_globals,
1125
attribute.func_name,
1126
attribute.func_defaults,
1127
attribute.func_closure)))
1128
# Copy annotations, if any
1129
try:
1130
attr[attrname]._dbus_annotations = (
1131
dict(attribute._dbus_annotations))
1132
except AttributeError:
1133
pass
1134
# Is this a D-Bus property?
1135
elif getattr(attribute, "_dbus_is_property", False):
1136
# Create a new, but exactly alike, function
1137
# object, and decorate it to be a new D-Bus
1138
# property with the alternate D-Bus interface
1139
# name. Add it to the class.
1140
attr[attrname] = (dbus_service_property
1141
(alt_interface,
1142
attribute._dbus_signature,
1143
attribute._dbus_access,
1144
attribute
1145
._dbus_get_args_options
1146
["byte_arrays"])
1147
(types.FunctionType
1148
(attribute.func_code,
1149
attribute.func_globals,
1150
attribute.func_name,
1151
attribute.func_defaults,
1152
attribute.func_closure)))
1153
# Copy annotations, if any
1154
try:
1155
attr[attrname]._dbus_annotations = (
1156
dict(attribute._dbus_annotations))
1157
except AttributeError:
1158
pass
1159
# Is this a D-Bus interface?
1160
elif getattr(attribute, "_dbus_is_interface", False):
1161
# Create a new, but exactly alike, function
1162
# object. Decorate it to be a new D-Bus interface
1163
# with the alternate D-Bus interface name. Add it
1164
# to the class.
1165
attr[attrname] = (dbus_interface_annotations
1166
(alt_interface)
1167
(types.FunctionType
1168
(attribute.func_code,
1169
attribute.func_globals,
1170
attribute.func_name,
1171
attribute.func_defaults,
1172
attribute.func_closure)))
1173
if deprecate:
1174
# Deprecate all alternate interfaces
1175
iname="_AlternateDBusNames_interface_annotation{0}"
1176
for interface_name in interface_names:
1177
@dbus_interface_annotations(interface_name)
1178
def func(self):
1179
return { "org.freedesktop.DBus.Deprecated":
1180
"true" }
1181
# Find an unused name
1182
for aname in (iname.format(i)
1183
for i in itertools.count()):
1184
if aname not in attr:
1185
attr[aname] = func
1186
break
1187
if interface_names:
1188
# Replace the class with a new subclass of it with
1189
# methods, signals, etc. as created above.
1190
cls = type(b"{0}Alternate".format(cls.__name__),
1191
(cls,), attr)
1192
return cls
1193
return wrapper
1194
1195
1196
@alternate_dbus_interfaces({"se.recompile.Mandos":
1197
"se.bsnet.fukt.Mandos"})
670
1198
class ClientDBus(Client, DBusObjectWithProperties):
671
1199
"""A Client class using D-Bus
672
1200
674
1202
dbus_object_path: dbus.ObjectPath
675
1203
bus: dbus.SystemBus()
676
1204
"""
1205
1206
runtime_expansions = (Client.runtime_expansions
1207
+ ("dbus_object_path",))
1208
677
1209
# dbus.service.Object doesn't use super(), so we can't either.
678
1210
679
1211
def __init__(self, bus = None, *args, **kwargs):
681
1213
Client.__init__(self, *args, **kwargs)
682
1214
# Only now, when this client is initialized, can it show up on
683
1215
# the D-Bus
1216
client_object_name = unicode(self.name).translate(
1217
{ord("."): ord("_"),
1218
ord("-"): ord("_")})
684
1219
self.dbus_object_path = (dbus.ObjectPath
685
(u"/clients/"
686
+ self.name.replace(u".", u"_")))
1220
("/clients/" + client_object_name))
687
1221
DBusObjectWithProperties.__init__(self, self.bus,
688
1222
self.dbus_object_path)
689
1223
690
@staticmethod
691
def _datetime_to_dbus(dt, variant_level=0):
692
"""Convert a UTC datetime.datetime() to a D-Bus type."""
693
return dbus.String(dt.isoformat(),
694
variant_level=variant_level)
695
696
def enable(self):
697
oldstate = getattr(self, u"enabled", False)
698
r = Client.enable(self)
699
if oldstate != self.enabled:
700
# Emit D-Bus signals
701
self.PropertyChanged(dbus.String(u"enabled"),
702
dbus.Boolean(True, variant_level=1))
703
self.PropertyChanged(
704
dbus.String(u"last_enabled"),
705
self._datetime_to_dbus(self.last_enabled,
706
variant_level=1))
707
return r
708
709
def disable(self, quiet = False):
710
oldstate = getattr(self, u"enabled", False)
711
r = Client.disable(self, quiet=quiet)
712
if not quiet and oldstate != self.enabled:
713
# Emit D-Bus signal
714
self.PropertyChanged(dbus.String(u"enabled"),
715
dbus.Boolean(False, variant_level=1))
716
return r
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
717
1291
718
1292
def __del__(self, *args, **kwargs):
719
1293
try:
720
1294
self.remove_from_connection()
721
1295
except LookupError:
722
1296
pass
723
if hasattr(DBusObjectWithProperties, u"__del__"):
1297
if hasattr(DBusObjectWithProperties, "__del__"):
724
1298
DBusObjectWithProperties.__del__(self, *args, **kwargs)
725
1299
Client.__del__(self, *args, **kwargs)
726
1300
728
1302
*args, **kwargs):
729
1303
self.checker_callback_tag = None
730
1304
self.checker = None
731
# Emit D-Bus signal
732
self.PropertyChanged(dbus.String(u"checker_running"),
733
dbus.Boolean(False, variant_level=1))
734
1305
if os.WIFEXITED(condition):
735
1306
exitstatus = os.WEXITSTATUS(condition)
736
1307
# Emit D-Bus signal
746
1317
return Client.checker_callback(self, pid, condition, command,
747
1318
*args, **kwargs)
748
1319
749
def checked_ok(self, *args, **kwargs):
750
r = Client.checked_ok(self, *args, **kwargs)
751
# Emit D-Bus signal
752
self.PropertyChanged(
753
dbus.String(u"last_checked_ok"),
754
(self._datetime_to_dbus(self.last_checked_ok,
755
variant_level=1)))
756
return r
757
758
1320
def start_checker(self, *args, **kwargs):
759
1321
old_checker = self.checker
760
1322
if self.checker is not None:
767
1329
and old_checker_pid != self.checker.pid):
768
1330
# Emit D-Bus signal
769
1331
self.CheckerStarted(self.current_checker_command)
770
self.PropertyChanged(
771
dbus.String(u"checker_running"),
772
dbus.Boolean(True, variant_level=1))
773
return r
774
775
def stop_checker(self, *args, **kwargs):
776
old_checker = getattr(self, u"checker", None)
777
r = Client.stop_checker(self, *args, **kwargs)
778
if (old_checker is not None
779
and getattr(self, u"checker", None) is None):
780
self.PropertyChanged(dbus.String(u"checker_running"),
781
dbus.Boolean(False, variant_level=1))
782
return r
1332
return r
1333
1334
def _reset_approved(self):
1335
self.approved = None
1336
return False
1337
1338
def approve(self, value=True):
1339
self.approved = value
1340
gobject.timeout_add(timedelta_to_milliseconds
1341
(self.approval_duration),
1342
self._reset_approved)
1343
self.send_changedstate()
783
1344
784
1345
## D-Bus methods, signals & properties
785
_interface = u"se.bsnet.fukt.Mandos.Client"
1346
_interface = "se.recompile.Mandos.Client"
1347
1348
## Interfaces
1349
1350
@dbus_interface_annotations(_interface)
1351
def _foo(self):
1352
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1353
"false"}
786
1354
787
1355
## Signals
788
1356
789
1357
# CheckerCompleted - signal
790
@dbus.service.signal(_interface, signature=u"nxs")
1358
@dbus.service.signal(_interface, signature="nxs")
791
1359
def CheckerCompleted(self, exitcode, waitstatus, command):
792
1360
"D-Bus signal"
793
1361
pass
794
1362
795
1363
# CheckerStarted - signal
796
@dbus.service.signal(_interface, signature=u"s")
1364
@dbus.service.signal(_interface, signature="s")
797
1365
def CheckerStarted(self, command):
798
1366
"D-Bus signal"
799
1367
pass
800
1368
801
1369
# PropertyChanged - signal
802
@dbus.service.signal(_interface, signature=u"sv")
1370
@dbus.service.signal(_interface, signature="sv")
803
1371
def PropertyChanged(self, property, value):
804
1372
"D-Bus signal"
805
1373
pass
807
1375
# GotSecret - signal
808
1376
@dbus.service.signal(_interface)
809
1377
def GotSecret(self):
810
"D-Bus signal"
1378
"""D-Bus signal
1379
Is sent after a successful transfer of secret from the Mandos
1380
server to mandos-client
1381
"""
811
1382
pass
812
1383
813
1384
# Rejected - signal
814
@dbus.service.signal(_interface)
815
def Rejected(self):
1385
@dbus.service.signal(_interface, signature="s")
1386
def Rejected(self, reason):
816
1387
"D-Bus signal"
817
1388
pass
818
1389
1390
# NeedApproval - signal
1391
@dbus.service.signal(_interface, signature="tb")
1392
def NeedApproval(self, timeout, default):
1393
"D-Bus signal"
1394
return self.need_approval()
1395
819
1396
## Methods
820
1397
1398
# Approve - method
1399
@dbus.service.method(_interface, in_signature="b")
1400
def Approve(self, value):
1401
self.approve(value)
1402
821
1403
# CheckedOK - method
822
1404
@dbus.service.method(_interface)
823
1405
def CheckedOK(self):
824
return self.checked_ok()
1406
self.checked_ok()
825
1407
826
1408
# Enable - method
827
1409
@dbus.service.method(_interface)
848
1430
849
1431
## Properties
850
1432
851
# name - property
852
@dbus_service_property(_interface, signature=u"s", access=u"read")
853
def name_dbus_property(self):
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):
854
1466
return dbus.String(self.name)
855
1467
856
# fingerprint - property
857
@dbus_service_property(_interface, signature=u"s", access=u"read")
858
def fingerprint_dbus_property(self):
1468
# Fingerprint - property
1469
@dbus_service_property(_interface, signature="s", access="read")
1470
def Fingerprint_dbus_property(self):
859
1471
return dbus.String(self.fingerprint)
860
1472
861
# host - property
862
@dbus_service_property(_interface, signature=u"s",
863
access=u"readwrite")
864
def host_dbus_property(self, value=None):
1473
# Host - property
1474
@dbus_service_property(_interface, signature="s",
1475
access="readwrite")
1476
def Host_dbus_property(self, value=None):
865
1477
if value is None: # get
866
1478
return dbus.String(self.host)
867
self.host = value
868
# Emit D-Bus signal
869
self.PropertyChanged(dbus.String(u"host"),
870
dbus.String(value, variant_level=1))
871
872
# created - property
873
@dbus_service_property(_interface, signature=u"s", access=u"read")
874
def created_dbus_property(self):
875
return dbus.String(self._datetime_to_dbus(self.created))
876
877
# last_enabled - property
878
@dbus_service_property(_interface, signature=u"s", access=u"read")
879
def last_enabled_dbus_property(self):
880
if self.last_enabled is None:
881
return dbus.String(u"")
882
return dbus.String(self._datetime_to_dbus(self.last_enabled))
883
884
# enabled - property
885
@dbus_service_property(_interface, signature=u"b",
886
access=u"readwrite")
887
def enabled_dbus_property(self, value=None):
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):
888
1495
if value is None: # get
889
1496
return dbus.Boolean(self.enabled)
890
1497
if value:
892
1499
else:
893
1500
self.disable()
894
1501
895
# last_checked_ok - property
896
@dbus_service_property(_interface, signature=u"s",
897
access=u"readwrite")
898
def last_checked_ok_dbus_property(self, value=None):
1502
# LastCheckedOK - property
1503
@dbus_service_property(_interface, signature="s",
1504
access="readwrite")
1505
def LastCheckedOK_dbus_property(self, value=None):
899
1506
if value is not None:
900
1507
self.checked_ok()
901
1508
return
902
if self.last_checked_ok is None:
903
return dbus.String(u"")
904
return dbus.String(self._datetime_to_dbus(self
905
.last_checked_ok))
906
907
# timeout - property
908
@dbus_service_property(_interface, signature=u"t",
909
access=u"readwrite")
910
def timeout_dbus_property(self, value=None):
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):
911
1531
if value is None: # get
912
1532
return dbus.UInt64(self.timeout_milliseconds())
1533
old_timeout = self.timeout
913
1534
self.timeout = datetime.timedelta(0, 0, 0, value)
914
# Emit D-Bus signal
915
self.PropertyChanged(dbus.String(u"timeout"),
916
dbus.UInt64(value, variant_level=1))
917
if getattr(self, u"disable_initiator_tag", None) is None:
918
return
919
# Reschedule timeout
920
gobject.source_remove(self.disable_initiator_tag)
921
self.disable_initiator_tag = None
922
time_to_die = (self.
923
_timedelta_to_milliseconds((self
924
.last_checked_ok
925
+ self.timeout)
926
- datetime.datetime
927
.utcnow()))
928
if time_to_die <= 0:
929
# The timeout has passed
930
self.disable()
931
else:
932
self.disable_initiator_tag = (gobject.timeout_add
933
(time_to_die, self.disable))
934
935
# interval - property
936
@dbus_service_property(_interface, signature=u"t",
937
access=u"readwrite")
938
def interval_dbus_property(self, value=None):
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):
939
1564
if value is None: # get
940
1565
return dbus.UInt64(self.interval_milliseconds())
941
1566
self.interval = datetime.timedelta(0, 0, 0, value)
942
# Emit D-Bus signal
943
self.PropertyChanged(dbus.String(u"interval"),
944
dbus.UInt64(value, variant_level=1))
945
if getattr(self, u"checker_initiator_tag", None) is None:
1567
if getattr(self, "checker_initiator_tag", None) is None:
946
1568
return
947
# Reschedule checker run
948
gobject.source_remove(self.checker_initiator_tag)
949
self.checker_initiator_tag = (gobject.timeout_add
950
(value, self.start_checker))
951
self.start_checker() # Start one now, too
952
953
# checker - property
954
@dbus_service_property(_interface, signature=u"s",
955
access=u"readwrite")
956
def checker_dbus_property(self, value=None):
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):
957
1580
if value is None: # get
958
1581
return dbus.String(self.checker_command)
959
self.checker_command = value
960
# Emit D-Bus signal
961
self.PropertyChanged(dbus.String(u"checker"),
962
dbus.String(self.checker_command,
963
variant_level=1))
1582
self.checker_command = unicode(value)
964
1583
965
# checker_running - property
966
@dbus_service_property(_interface, signature=u"b",
967
access=u"readwrite")
968
def checker_running_dbus_property(self, value=None):
1584
# CheckerRunning - property
1585
@dbus_service_property(_interface, signature="b",
1586
access="readwrite")
1587
def CheckerRunning_dbus_property(self, value=None):
969
1588
if value is None: # get
970
1589
return dbus.Boolean(self.checker is not None)
971
1590
if value:
973
1592
else:
974
1593
self.stop_checker()
975
1594
976
# object_path - property
977
@dbus_service_property(_interface, signature=u"o", access=u"read")
978
def object_path_dbus_property(self):
1595
# ObjectPath - property
1596
@dbus_service_property(_interface, signature="o", access="read")
1597
def ObjectPath_dbus_property(self):
979
1598
return self.dbus_object_path # is already a dbus.ObjectPath
980
1599
981
# secret = property
982
@dbus_service_property(_interface, signature=u"ay",
983
access=u"write", byte_arrays=True)
984
def secret_dbus_property(self, value):
1600
# Secret = property
1601
@dbus_service_property(_interface, signature="ay",
1602
access="write", byte_arrays=True)
1603
def Secret_dbus_property(self, value):
985
1604
self.secret = str(value)
986
1605
987
1606
del _interface
988
1607
989
1608
1609
class ProxyClient(object):
1610
def __init__(self, child_pipe, fpr, address):
1611
self._pipe = child_pipe
1612
self._pipe.send(('init', fpr, address))
1613
if not self._pipe.recv():
1614
raise KeyError()
1615
1616
def __getattribute__(self, name):
1617
if name == '_pipe':
1618
return super(ProxyClient, self).__getattribute__(name)
1619
self._pipe.send(('getattr', name))
1620
data = self._pipe.recv()
1621
if data[0] == 'data':
1622
return data[1]
1623
if data[0] == 'function':
1624
def func(*args, **kwargs):
1625
self._pipe.send(('funcall', name, args, kwargs))
1626
return self._pipe.recv()[1]
1627
return func
1628
1629
def __setattr__(self, name, value):
1630
if name == '_pipe':
1631
return super(ProxyClient, self).__setattr__(name, value)
1632
self._pipe.send(('setattr', name, value))
1633
1634
990
1635
class ClientHandler(socketserver.BaseRequestHandler, object):
991
1636
"""A class to handle client connections.
992
1637
994
1639
Note: This will run in its own forked process."""
995
1640
996
1641
def handle(self):
997
logger.info(u"TCP connection from: %s",
998
unicode(self.client_address))
999
logger.debug(u"IPC Pipe FD: %d",
1000
self.server.child_pipe[1].fileno())
1001
# Open IPC pipe to parent process
1002
with contextlib.nested(self.server.child_pipe[1],
1003
self.server.parent_pipe[0]
1004
) as (ipc, ipc_return):
1642
with contextlib.closing(self.server.child_pipe) as child_pipe:
1643
logger.info("TCP connection from: %s",
1644
unicode(self.client_address))
1645
logger.debug("Pipe FD: %d",
1646
self.server.child_pipe.fileno())
1647
1005
1648
session = (gnutls.connection
1006
1649
.ClientSession(self.request,
1007
1650
gnutls.connection
1012
1655
# no X.509 keys are added to it. Therefore, we can use it
1013
1656
# here despite using OpenPGP certificates.
1014
1657
1015
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1016
# u"+AES-256-CBC", u"+SHA1",
1017
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1018
# u"+DHE-DSS"))
1658
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1659
# "+AES-256-CBC", "+SHA1",
1660
# "+COMP-NULL", "+CTYPE-OPENPGP",
1661
# "+DHE-DSS"))
1019
1662
# Use a fallback default, since this MUST be set.
1020
1663
priority = self.server.gnutls_priority
1021
1664
if priority is None:
1022
priority = u"NORMAL"
1665
priority = "NORMAL"
1023
1666
(gnutls.library.functions
1024
1667
.gnutls_priority_set_direct(session._c_object,
1025
1668
priority, None))
1027
1670
# Start communication using the Mandos protocol
1028
1671
# Get protocol number
1029
1672
line = self.request.makefile().readline()
1030
logger.debug(u"Protocol version: %r", line)
1673
logger.debug("Protocol version: %r", line)
1031
1674
try:
1032
1675
if int(line.strip().split()[0]) > 1:
1033
1676
raise RuntimeError
1034
except (ValueError, IndexError, RuntimeError), error:
1035
logger.error(u"Unknown protocol version: %s", error)
1677
except (ValueError, IndexError, RuntimeError) as error:
1678
logger.error("Unknown protocol version: %s", error)
1036
1679
return
1037
1680
1038
1681
# Start GnuTLS connection
1039
1682
try:
1040
1683
session.handshake()
1041
except gnutls.errors.GNUTLSError, error:
1042
logger.warning(u"Handshake failed: %s", error)
1684
except gnutls.errors.GNUTLSError as error:
1685
logger.warning("Handshake failed: %s", error)
1043
1686
# Do not run session.bye() here: the session is not
1044
1687
# established. Just abandon the request.
1045
1688
return
1046
logger.debug(u"Handshake succeeded")
1689
logger.debug("Handshake succeeded")
1690
1691
approval_required = False
1047
1692
try:
1048
1693
try:
1049
1694
fpr = self.fingerprint(self.peer_certificate
1050
1695
(session))
1051
except (TypeError, gnutls.errors.GNUTLSError), error:
1052
logger.warning(u"Bad certificate: %s", error)
1053
return
1054
logger.debug(u"Fingerprint: %s", fpr)
1055
1056
for c in self.server.clients:
1057
if c.fingerprint == fpr:
1058
client = c
1696
except (TypeError,
1697
gnutls.errors.GNUTLSError) as error:
1698
logger.warning("Bad certificate: %s", error)
1699
return
1700
logger.debug("Fingerprint: %s", fpr)
1701
1702
try:
1703
client = ProxyClient(child_pipe, fpr,
1704
self.client_address)
1705
except KeyError:
1706
return
1707
1708
if client.approval_delay:
1709
delay = client.approval_delay
1710
client.approvals_pending += 1
1711
approval_required = True
1712
1713
while True:
1714
if not client.enabled:
1715
logger.info("Client %s is disabled",
1716
client.name)
1717
if self.server.use_dbus:
1718
# Emit D-Bus signal
1719
client.Rejected("Disabled")
1720
return
1721
1722
if client.approved or not client.approval_delay:
1723
#We are approved or approval is disabled
1059
1724
break
1060
else:
1061
ipc.write(u"NOTFOUND %s %s\n"
1062
% (fpr, unicode(self.client_address)))
1063
return
1064
1065
class ClientProxy(object):
1066
"""Client proxy object. Not for calling methods."""
1067
def __init__(self, client):
1068
self.client = client
1069
def __getattr__(self, name):
1070
if name.startswith("ipc_"):
1071
def tempfunc():
1072
ipc.write("%s %s\n" % (name[4:].upper(),
1073
self.client.name))
1074
return tempfunc
1075
if not hasattr(self.client, name):
1076
raise AttributeError
1077
ipc.write(u"GETATTR %s %s\n"
1078
% (name, self.client.fingerprint))
1079
return pickle.load(ipc_return)
1080
clientproxy = ClientProxy(client)
1081
# Have to check if client.enabled, since it is
1082
# possible that the client was disabled since the
1083
# GnuTLS session was established.
1084
if not clientproxy.enabled:
1085
clientproxy.ipc_disabled()
1086
return
1087
1088
clientproxy.ipc_sending()
1725
elif client.approved is None:
1726
logger.info("Client %s needs approval",
1727
client.name)
1728
if self.server.use_dbus:
1729
# Emit D-Bus signal
1730
client.NeedApproval(
1731
client.approval_delay_milliseconds(),
1732
client.approved_by_default)
1733
else:
1734
logger.warning("Client %s was not approved",
1735
client.name)
1736
if self.server.use_dbus:
1737
# Emit D-Bus signal
1738
client.Rejected("Denied")
1739
return
1740
1741
#wait until timeout or approved
1742
time = datetime.datetime.now()
1743
client.changedstate.acquire()
1744
client.changedstate.wait(
1745
float(timedelta_to_milliseconds(delay)
1746
/ 1000))
1747
client.changedstate.release()
1748
time2 = datetime.datetime.now()
1749
if (time2 - time) >= delay:
1750
if not client.approved_by_default:
1751
logger.warning("Client %s timed out while"
1752
" waiting for approval",
1753
client.name)
1754
if self.server.use_dbus:
1755
# Emit D-Bus signal
1756
client.Rejected("Approval timed out")
1757
return
1758
else:
1759
break
1760
else:
1761
delay -= time2 - time
1762
1089
1763
sent_size = 0
1090
1764
while sent_size < len(client.secret):
1091
sent = session.send(client.secret[sent_size:])
1092
logger.debug(u"Sent: %d, remaining: %d",
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",
1093
1772
sent, len(client.secret)
1094
1773
- (sent_size + sent))
1095
1774
sent_size += sent
1775
1776
logger.info("Sending secret to %s", client.name)
1777
# bump the timeout using extended_timeout
1778
client.bump_timeout(client.extended_timeout)
1779
if self.server.use_dbus:
1780
# Emit D-Bus signal
1781
client.GotSecret()
1782
1096
1783
finally:
1097
session.bye()
1784
if approval_required:
1785
client.approvals_pending -= 1
1786
try:
1787
session.bye()
1788
except gnutls.errors.GNUTLSError as error:
1789
logger.warning("GnuTLS bye failed",
1790
exc_info=error)
1098
1791
1099
1792
@staticmethod
1100
1793
def peer_certificate(session):
1110
1803
.gnutls_certificate_get_peers
1111
1804
(session._c_object, ctypes.byref(list_size)))
1112
1805
if not bool(cert_list) and list_size.value != 0:
1113
raise gnutls.errors.GNUTLSError(u"error getting peer"
1114
u" certificate")
1806
raise gnutls.errors.GNUTLSError("error getting peer"
1807
" certificate")
1115
1808
if list_size.value == 0:
1116
1809
return None
1117
1810
cert = cert_list[0]
1143
1836
if crtverify.value != 0:
1144
1837
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1145
1838
raise (gnutls.errors.CertificateSecurityError
1146
(u"Verify failed"))
1839
("Verify failed"))
1147
1840
# New buffer for the fingerprint
1148
1841
buf = ctypes.create_string_buffer(20)
1149
1842
buf_len = ctypes.c_size_t()
1156
1849
# Convert the buffer to a Python bytestring
1157
1850
fpr = ctypes.string_at(buf, buf_len.value)
1158
1851
# Convert the bytestring to hexadecimal notation
1159
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1852
hex_fpr = binascii.hexlify(fpr).upper()
1160
1853
return hex_fpr
1161
1854
1162
1855
1163
class ForkingMixInWithPipes(socketserver.ForkingMixIn, object):
1164
"""Like socketserver.ForkingMixIn, but also pass a pipe pair."""
1856
class MultiprocessingMixIn(object):
1857
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1858
def sub_process_main(self, request, address):
1859
try:
1860
self.finish_request(request, address)
1861
except Exception:
1862
self.handle_error(request, address)
1863
self.close_request(request)
1864
1865
def process_request(self, request, address):
1866
"""Start a new process to process the request."""
1867
proc = multiprocessing.Process(target = self.sub_process_main,
1868
args = (request, address))
1869
proc.start()
1870
return proc
1871
1872
1873
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1874
""" adds a pipe to the MixIn """
1165
1875
def process_request(self, request, client_address):
1166
1876
"""Overrides and wraps the original process_request().
1167
1877
1168
1878
This function creates a new pipe in self.pipe
1169
1879
"""
1170
# Child writes to child_pipe
1171
self.child_pipe = map(os.fdopen, os.pipe(), u"rw", (1, 0))
1172
# Parent writes to parent_pipe
1173
self.parent_pipe = map(os.fdopen, os.pipe(), u"rw", (1, 0))
1174
super(ForkingMixInWithPipes,
1175
self).process_request(request, client_address)
1176
# Close unused ends for parent
1177
self.parent_pipe[0].close() # close read end
1178
self.child_pipe[1].close() # close write end
1179
self.add_pipe_fds(self.child_pipe[0], self.parent_pipe[1])
1180
def add_pipe_fds(self, child_pipe_fd, parent_pipe_fd):
1880
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1881
1882
proc = MultiprocessingMixIn.process_request(self, request,
1883
client_address)
1884
self.child_pipe.close()
1885
self.add_pipe(parent_pipe, proc)
1886
1887
def add_pipe(self, parent_pipe, proc):
1181
1888
"""Dummy function; override as necessary"""
1182
child_pipe_fd.close()
1183
parent_pipe_fd.close()
1184
1185
1186
class IPv6_TCPServer(ForkingMixInWithPipes,
1889
raise NotImplementedError
1890
1891
1892
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1187
1893
socketserver.TCPServer, object):
1188
1894
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1189
1895
1193
1899
use_ipv6: Boolean; to use IPv6 or not
1194
1900
"""
1195
1901
def __init__(self, server_address, RequestHandlerClass,
1196
interface=None, use_ipv6=True):
1902
interface=None, use_ipv6=True, socketfd=None):
1903
"""If socketfd is set, use that file descriptor instead of
1904
creating a new one with socket.socket().
1905
"""
1197
1906
self.interface = interface
1198
1907
if use_ipv6:
1199
1908
self.address_family = socket.AF_INET6
1909
if socketfd is not None:
1910
# Save the file descriptor
1911
self.socketfd = socketfd
1912
# Save the original socket.socket() function
1913
self.socket_socket = socket.socket
1914
# To implement --socket, we monkey patch socket.socket.
1915
#
1916
# (When socketserver.TCPServer is a new-style class, we
1917
# could make self.socket into a property instead of monkey
1918
# patching socket.socket.)
1919
#
1920
# Create a one-time-only replacement for socket.socket()
1921
@functools.wraps(socket.socket)
1922
def socket_wrapper(*args, **kwargs):
1923
# Restore original function so subsequent calls are
1924
# not affected.
1925
socket.socket = self.socket_socket
1926
del self.socket_socket
1927
# This time only, return a new socket object from the
1928
# saved file descriptor.
1929
return socket.fromfd(self.socketfd, *args, **kwargs)
1930
# Replace socket.socket() function with wrapper
1931
socket.socket = socket_wrapper
1932
# The socketserver.TCPServer.__init__ will call
1933
# socket.socket(), which might be our replacement,
1934
# socket_wrapper(), if socketfd was set.
1200
1935
socketserver.TCPServer.__init__(self, server_address,
1201
1936
RequestHandlerClass)
1937
1202
1938
def server_bind(self):
1203
1939
"""This overrides the normal server_bind() function
1204
1940
to bind to an interface if one was specified, and also NOT to
1205
1941
bind to an address or port if they were not specified."""
1206
1942
if self.interface is not None:
1207
1943
if SO_BINDTODEVICE is None:
1208
logger.error(u"SO_BINDTODEVICE does not exist;"
1209
u" cannot bind to interface %s",
1944
logger.error("SO_BINDTODEVICE does not exist;"
1945
" cannot bind to interface %s",
1210
1946
self.interface)
1211
1947
else:
1212
1948
try:
1213
1949
self.socket.setsockopt(socket.SOL_SOCKET,
1214
1950
SO_BINDTODEVICE,
1215
1951
str(self.interface
1216
+ u'\0'))
1217
except socket.error, error:
1218
if error[0] == errno.EPERM:
1219
logger.error(u"No permission to"
1220
u" bind to interface %s",
1221
self.interface)
1222
elif error[0] == errno.ENOPROTOOPT:
1223
logger.error(u"SO_BINDTODEVICE not available;"
1224
u" cannot bind to interface %s",
1952
+ '\0'))
1953
except socket.error as error:
1954
if error.errno == errno.EPERM:
1955
logger.error("No permission to"
1956
" bind to interface %s",
1957
self.interface)
1958
elif error.errno == errno.ENOPROTOOPT:
1959
logger.error("SO_BINDTODEVICE not available;"
1960
" cannot bind to interface %s",
1961
self.interface)
1962
elif error.errno == errno.ENODEV:
1963
logger.error("Interface %s does not"
1964
" exist, cannot bind",
1225
1965
self.interface)
1226
1966
else:
1227
1967
raise
1229
1969
if self.server_address[0] or self.server_address[1]:
1230
1970
if not self.server_address[0]:
1231
1971
if self.address_family == socket.AF_INET6:
1232
any_address = u"::" # in6addr_any
1972
any_address = "::" # in6addr_any
1233
1973
else:
1234
1974
any_address = socket.INADDR_ANY
1235
1975
self.server_address = (any_address,
1258
1998
"""
1259
1999
def __init__(self, server_address, RequestHandlerClass,
1260
2000
interface=None, use_ipv6=True, clients=None,
1261
gnutls_priority=None, use_dbus=True):
2001
gnutls_priority=None, use_dbus=True, socketfd=None):
1262
2002
self.enabled = False
1263
2003
self.clients = clients
1264
2004
if self.clients is None:
1265
self.clients = set()
2005
self.clients = {}
1266
2006
self.use_dbus = use_dbus
1267
2007
self.gnutls_priority = gnutls_priority
1268
2008
IPv6_TCPServer.__init__(self, server_address,
1269
2009
RequestHandlerClass,
1270
2010
interface = interface,
1271
use_ipv6 = use_ipv6)
2011
use_ipv6 = use_ipv6,
2012
socketfd = socketfd)
1272
2013
def server_activate(self):
1273
2014
if self.enabled:
1274
2015
return socketserver.TCPServer.server_activate(self)
2016
1275
2017
def enable(self):
1276
2018
self.enabled = True
1277
def add_pipe_fds(self, child_pipe_fd, parent_pipe_fd):
2019
2020
def add_pipe(self, parent_pipe, proc):
1278
2021
# Call "handle_ipc" for both data and EOF events
1279
gobject.io_add_watch(child_pipe_fd.fileno(),
2022
gobject.io_add_watch(parent_pipe.fileno(),
1280
2023
gobject.IO_IN | gobject.IO_HUP,
1281
2024
functools.partial(self.handle_ipc,
1282
reply = parent_pipe_fd,
1283
sender= child_pipe_fd))
1284
def handle_ipc(self, source, condition, reply=None, sender=None):
1285
condition_names = {
1286
gobject.IO_IN: u"IN", # There is data to read.
1287
gobject.IO_OUT: u"OUT", # Data can be written (without
1288
# blocking).
1289
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1290
gobject.IO_ERR: u"ERR", # Error condition.
1291
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1292
# broken, usually for pipes and
1293
# sockets).
1294
}
1295
conditions_string = ' | '.join(name
1296
for cond, name in
1297
condition_names.iteritems()
1298
if cond & condition)
1299
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1300
conditions_string)
1301
1302
# Read a line from the file object
1303
cmdline = sender.readline()
1304
if not cmdline: # Empty line means end of file
1305
# close the IPC pipes
1306
sender.close()
1307
reply.close()
1308
1309
# Stop calling this function
1310
return False
1311
1312
logger.debug(u"IPC command: %r", cmdline)
1313
1314
# Parse and act on command
1315
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1316
1317
if cmd == u"NOTFOUND":
1318
fpr, address = args.split(None, 1)
1319
logger.warning(u"Client not found for fingerprint: %s, ad"
1320
u"dress: %s", fpr, address)
1321
if self.use_dbus:
1322
# Emit D-Bus signal
1323
mandos_dbus_service.ClientNotFound(fpr, address)
1324
elif cmd == u"DISABLED":
1325
for client in self.clients:
1326
if client.name == args:
1327
logger.warning(u"Client %s is disabled", args)
1328
if self.use_dbus:
1329
# Emit D-Bus signal
1330
client.Rejected()
1331
break
1332
else:
1333
logger.error(u"Unknown client %s is disabled", args)
1334
elif cmd == u"SENDING":
1335
for client in self.clients:
1336
if client.name == args:
1337
logger.info(u"Sending secret to %s", client.name)
1338
client.checked_ok()
1339
if self.use_dbus:
1340
# Emit D-Bus signal
1341
client.GotSecret()
1342
break
1343
else:
1344
logger.error(u"Sending secret to unknown client %s",
1345
args)
1346
elif cmd == u"GETATTR":
1347
attr_name, fpr = args.split(None, 1)
1348
for client in self.clients:
1349
if client.fingerprint == fpr:
1350
attr_value = getattr(client, attr_name, None)
1351
logger.debug("IPC reply: %r", attr_value)
1352
pickle.dump(attr_value, reply)
1353
break
1354
else:
1355
logger.error(u"Client %s on address %s requesting "
1356
u"attribute %s not found", fpr, address,
1357
attr_name)
1358
pickle.dump(None, reply)
1359
else:
1360
logger.error(u"Unknown IPC command: %r", cmdline)
1361
1362
# Keep calling this function
2025
parent_pipe =
2026
parent_pipe,
2027
proc = proc))
2028
2029
def handle_ipc(self, source, condition, parent_pipe=None,
2030
proc = None, client_object=None):
2031
# error, or the other end of multiprocessing.Pipe has closed
2032
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2033
# Wait for other process to exit
2034
proc.join()
2035
return False
2036
2037
# Read a request from the child
2038
request = parent_pipe.recv()
2039
command = request[0]
2040
2041
if command == 'init':
2042
fpr = request[1]
2043
address = request[2]
2044
2045
for c in self.clients.itervalues():
2046
if c.fingerprint == fpr:
2047
client = c
2048
break
2049
else:
2050
logger.info("Client not found for fingerprint: %s, ad"
2051
"dress: %s", fpr, address)
2052
if self.use_dbus:
2053
# Emit D-Bus signal
2054
mandos_dbus_service.ClientNotFound(fpr,
2055
address[0])
2056
parent_pipe.send(False)
2057
return False
2058
2059
gobject.io_add_watch(parent_pipe.fileno(),
2060
gobject.IO_IN | gobject.IO_HUP,
2061
functools.partial(self.handle_ipc,
2062
parent_pipe =
2063
parent_pipe,
2064
proc = proc,
2065
client_object =
2066
client))
2067
parent_pipe.send(True)
2068
# remove the old hook in favor of the new above hook on
2069
# same fileno
2070
return False
2071
if command == 'funcall':
2072
funcname = request[1]
2073
args = request[2]
2074
kwargs = request[3]
2075
2076
parent_pipe.send(('data', getattr(client_object,
2077
funcname)(*args,
2078
**kwargs)))
2079
2080
if command == 'getattr':
2081
attrname = request[1]
2082
if callable(client_object.__getattribute__(attrname)):
2083
parent_pipe.send(('function',))
2084
else:
2085
parent_pipe.send(('data', client_object
2086
.__getattribute__(attrname)))
2087
2088
if command == 'setattr':
2089
attrname = request[1]
2090
value = request[2]
2091
setattr(client_object, attrname, value)
2092
1363
2093
return True
1364
2094
1365
2095
1366
2096
def string_to_delta(interval):
1367
2097
"""Parse a string and return a datetime.timedelta
1368
2098
1369
>>> string_to_delta(u'7d')
2099
>>> string_to_delta('7d')
1370
2100
datetime.timedelta(7)
1371
>>> string_to_delta(u'60s')
2101
>>> string_to_delta('60s')
1372
2102
datetime.timedelta(0, 60)
1373
>>> string_to_delta(u'60m')
2103
>>> string_to_delta('60m')
1374
2104
datetime.timedelta(0, 3600)
1375
>>> string_to_delta(u'24h')
2105
>>> string_to_delta('24h')
1376
2106
datetime.timedelta(1)
1377
>>> string_to_delta(u'1w')
2107
>>> string_to_delta('1w')
1378
2108
datetime.timedelta(7)
1379
>>> string_to_delta(u'5m 30s')
2109
>>> string_to_delta('5m 30s')
1380
2110
datetime.timedelta(0, 330)
1381
2111
"""
1382
2112
timevalue = datetime.timedelta(0)
1384
2114
try:
1385
2115
suffix = unicode(s[-1])
1386
2116
value = int(s[:-1])
1387
if suffix == u"d":
2117
if suffix == "d":
1388
2118
delta = datetime.timedelta(value)
1389
elif suffix == u"s":
2119
elif suffix == "s":
1390
2120
delta = datetime.timedelta(0, value)
1391
elif suffix == u"m":
2121
elif suffix == "m":
1392
2122
delta = datetime.timedelta(0, 0, 0, 0, value)
1393
elif suffix == u"h":
2123
elif suffix == "h":
1394
2124
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1395
elif suffix == u"w":
2125
elif suffix == "w":
1396
2126
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1397
2127
else:
1398
raise ValueError(u"Unknown suffix %r" % suffix)
1399
except (ValueError, IndexError), e:
1400
raise ValueError(e.message)
2128
raise ValueError("Unknown suffix {0!r}"
2129
.format(suffix))
2130
except (ValueError, IndexError) as e:
2131
raise ValueError(*(e.args))
1401
2132
timevalue += delta
1402
2133
return timevalue
1403
2134
1404
2135
1405
def if_nametoindex(interface):
1406
"""Call the C function if_nametoindex(), or equivalent
1407
1408
Note: This function cannot accept a unicode string."""
1409
global if_nametoindex
1410
try:
1411
if_nametoindex = (ctypes.cdll.LoadLibrary
1412
(ctypes.util.find_library(u"c"))
1413
.if_nametoindex)
1414
except (OSError, AttributeError):
1415
logger.warning(u"Doing if_nametoindex the hard way")
1416
def if_nametoindex(interface):
1417
"Get an interface index the hard way, i.e. using fcntl()"
1418
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1419
with contextlib.closing(socket.socket()) as s:
1420
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1421
struct.pack(str(u"16s16x"),
1422
interface))
1423
interface_index = struct.unpack(str(u"I"),
1424
ifreq[16:20])[0]
1425
return interface_index
1426
return if_nametoindex(interface)
1427
1428
1429
2136
def daemon(nochdir = False, noclose = False):
1430
2137
"""See daemon(3). Standard BSD Unix function.
1431
2138
1434
2141
sys.exit()
1435
2142
os.setsid()
1436
2143
if not nochdir:
1437
os.chdir(u"/")
2144
os.chdir("/")
1438
2145
if os.fork():
1439
2146
sys.exit()
1440
2147
if not noclose:
1441
2148
# Close all standard open file descriptors
1442
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2149
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1443
2150
if not stat.S_ISCHR(os.fstat(null).st_mode):
1444
2151
raise OSError(errno.ENODEV,
1445
u"%s not a character device"
1446
% os.path.devnull)
2152
"{0} not a character device"
2153
.format(os.devnull))
1447
2154
os.dup2(null, sys.stdin.fileno())
1448
2155
os.dup2(null, sys.stdout.fileno())
1449
2156
os.dup2(null, sys.stderr.fileno())
1456
2163
##################################################################
1457
2164
# Parsing of options, both command line and config file
1458
2165
1459
parser = optparse.OptionParser(version = "%%prog %s" % version)
1460
parser.add_option("-i", u"--interface", type=u"string",
1461
metavar="IF", help=u"Bind to interface IF")
1462
parser.add_option("-a", u"--address", type=u"string",
1463
help=u"Address to listen for requests on")
1464
parser.add_option("-p", u"--port", type=u"int",
1465
help=u"Port number to receive requests on")
1466
parser.add_option("--check", action=u"store_true",
1467
help=u"Run self-test")
1468
parser.add_option("--debug", action=u"store_true",
1469
help=u"Debug mode; run in foreground and log to"
1470
u" terminal")
1471
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1472
u" priority string (see GnuTLS documentation)")
1473
parser.add_option("--servicename", type=u"string",
1474
metavar=u"NAME", help=u"Zeroconf service name")
1475
parser.add_option("--configdir", type=u"string",
1476
default=u"/etc/mandos", metavar=u"DIR",
1477
help=u"Directory to search for configuration"
1478
u" files")
1479
parser.add_option("--no-dbus", action=u"store_false",
1480
dest=u"use_dbus", help=u"Do not provide D-Bus"
1481
u" system bus interface")
1482
parser.add_option("--no-ipv6", action=u"store_false",
1483
dest=u"use_ipv6", help=u"Do not use IPv6")
1484
options = parser.parse_args()[0]
2166
parser = argparse.ArgumentParser()
2167
parser.add_argument("-v", "--version", action="version",
2168
version = "%(prog)s {0}".format(version),
2169
help="show version number and exit")
2170
parser.add_argument("-i", "--interface", metavar="IF",
2171
help="Bind to interface IF")
2172
parser.add_argument("-a", "--address",
2173
help="Address to listen for requests on")
2174
parser.add_argument("-p", "--port", type=int,
2175
help="Port number to receive requests on")
2176
parser.add_argument("--check", action="store_true",
2177
help="Run self-test")
2178
parser.add_argument("--debug", action="store_true",
2179
help="Debug mode; run in foreground and log"
2180
" to terminal")
2181
parser.add_argument("--debuglevel", metavar="LEVEL",
2182
help="Debug level for stdout output")
2183
parser.add_argument("--priority", help="GnuTLS"
2184
" priority string (see GnuTLS documentation)")
2185
parser.add_argument("--servicename",
2186
metavar="NAME", help="Zeroconf service name")
2187
parser.add_argument("--configdir",
2188
default="/etc/mandos", metavar="DIR",
2189
help="Directory to search for configuration"
2190
" files")
2191
parser.add_argument("--no-dbus", action="store_false",
2192
dest="use_dbus", help="Do not provide D-Bus"
2193
" system bus interface")
2194
parser.add_argument("--no-ipv6", action="store_false",
2195
dest="use_ipv6", help="Do not use IPv6")
2196
parser.add_argument("--no-restore", action="store_false",
2197
dest="restore", help="Do not restore stored"
2198
" state")
2199
parser.add_argument("--socket", type=int,
2200
help="Specify a file descriptor to a network"
2201
" socket to use instead of creating one")
2202
parser.add_argument("--statedir", metavar="DIR",
2203
help="Directory to save/restore state in")
2204
2205
options = parser.parse_args()
1485
2206
1486
2207
if options.check:
1487
2208
import doctest
1489
2210
sys.exit()
1490
2211
1491
2212
# Default values for config file for server-global settings
1492
server_defaults = { u"interface": u"",
1493
u"address": u"",
1494
u"port": u"",
1495
u"debug": u"False",
1496
u"priority":
1497
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1498
u"servicename": u"Mandos",
1499
u"use_dbus": u"True",
1500
u"use_ipv6": u"True",
2213
server_defaults = { "interface": "",
2214
"address": "",
2215
"port": "",
2216
"debug": "False",
2217
"priority":
2218
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2219
"servicename": "Mandos",
2220
"use_dbus": "True",
2221
"use_ipv6": "True",
2222
"debuglevel": "",
2223
"restore": "True",
2224
"socket": "",
2225
"statedir": "/var/lib/mandos"
1501
2226
}
1502
2227
1503
2228
# Parse config file for server-global settings
1504
2229
server_config = configparser.SafeConfigParser(server_defaults)
1505
2230
del server_defaults
1506
2231
server_config.read(os.path.join(options.configdir,
1507
u"mandos.conf"))
2232
"mandos.conf"))
1508
2233
# Convert the SafeConfigParser object to a dict
1509
2234
server_settings = server_config.defaults()
1510
2235
# Use the appropriate methods on the non-string config options
1511
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1512
server_settings[option] = server_config.getboolean(u"DEFAULT",
2236
for option in ("debug", "use_dbus", "use_ipv6"):
2237
server_settings[option] = server_config.getboolean("DEFAULT",
1513
2238
option)
1514
2239
if server_settings["port"]:
1515
server_settings["port"] = server_config.getint(u"DEFAULT",
1516
u"port")
2240
server_settings["port"] = server_config.getint("DEFAULT",
2241
"port")
2242
if server_settings["socket"]:
2243
server_settings["socket"] = server_config.getint("DEFAULT",
2244
"socket")
2245
# Later, stdin will, and stdout and stderr might, be dup'ed
2246
# over with an opened os.devnull. But we don't want this to
2247
# happen with a supplied network socket.
2248
if 0 <= server_settings["socket"] <= 2:
2249
server_settings["socket"] = os.dup(server_settings
2250
["socket"])
1517
2251
del server_config
1518
2252
1519
2253
# Override the settings from the config file with command line
1520
2254
# options, if set.
1521
for option in (u"interface", u"address", u"port", u"debug",
1522
u"priority", u"servicename", u"configdir",
1523
u"use_dbus", u"use_ipv6"):
2255
for option in ("interface", "address", "port", "debug",
2256
"priority", "servicename", "configdir",
2257
"use_dbus", "use_ipv6", "debuglevel", "restore",
2258
"statedir", "socket"):
1524
2259
value = getattr(options, option)
1525
2260
if value is not None:
1526
2261
server_settings[option] = value
1534
2269
##################################################################
1535
2270
1536
2271
# For convenience
1537
debug = server_settings[u"debug"]
1538
use_dbus = server_settings[u"use_dbus"]
1539
use_ipv6 = server_settings[u"use_ipv6"]
1540
1541
if not debug:
1542
syslogger.setLevel(logging.WARNING)
1543
console.setLevel(logging.WARNING)
1544
1545
if server_settings[u"servicename"] != u"Mandos":
2272
debug = server_settings["debug"]
2273
debuglevel = server_settings["debuglevel"]
2274
use_dbus = server_settings["use_dbus"]
2275
use_ipv6 = server_settings["use_ipv6"]
2276
stored_state_path = os.path.join(server_settings["statedir"],
2277
stored_state_file)
2278
2279
if debug:
2280
initlogger(debug, logging.DEBUG)
2281
else:
2282
if not debuglevel:
2283
initlogger(debug)
2284
else:
2285
level = getattr(logging, debuglevel.upper())
2286
initlogger(debug, level)
2287
2288
if server_settings["servicename"] != "Mandos":
1546
2289
syslogger.setFormatter(logging.Formatter
1547
(u'Mandos (%s) [%%(process)d]:'
1548
u' %%(levelname)s: %%(message)s'
1549
% server_settings[u"servicename"]))
2290
('Mandos ({0}) [%(process)d]:'
2291
' %(levelname)s: %(message)s'
2292
.format(server_settings
2293
["servicename"])))
1550
2294
1551
2295
# Parse config file with clients
1552
client_defaults = { u"timeout": u"1h",
1553
u"interval": u"5m",
1554
u"checker": u"fping -q -- %%(host)s",
1555
u"host": u"",
1556
}
1557
client_config = configparser.SafeConfigParser(client_defaults)
1558
client_config.read(os.path.join(server_settings[u"configdir"],
1559
u"clients.conf"))
2296
client_config = configparser.SafeConfigParser(Client
2297
.client_defaults)
2298
client_config.read(os.path.join(server_settings["configdir"],
2299
"clients.conf"))
1560
2300
1561
2301
global mandos_dbus_service
1562
2302
mandos_dbus_service = None
1563
2303
1564
tcp_server = MandosServer((server_settings[u"address"],
1565
server_settings[u"port"]),
2304
tcp_server = MandosServer((server_settings["address"],
2305
server_settings["port"]),
1566
2306
ClientHandler,
1567
interface=server_settings[u"interface"],
2307
interface=(server_settings["interface"]
2308
or None),
1568
2309
use_ipv6=use_ipv6,
1569
2310
gnutls_priority=
1570
server_settings[u"priority"],
1571
use_dbus=use_dbus)
1572
pidfilename = u"/var/run/mandos.pid"
1573
try:
1574
pidfile = open(pidfilename, u"w")
1575
except IOError:
1576
logger.error(u"Could not open file %r", pidfilename)
2311
server_settings["priority"],
2312
use_dbus=use_dbus,
2313
socketfd=(server_settings["socket"]
2314
or None))
2315
if not debug:
2316
pidfilename = "/var/run/mandos.pid"
2317
try:
2318
pidfile = open(pidfilename, "w")
2319
except IOError as e:
2320
logger.error("Could not open file %r", pidfilename,
2321
exc_info=e)
1577
2322
1578
try:
1579
uid = pwd.getpwnam(u"_mandos").pw_uid
1580
gid = pwd.getpwnam(u"_mandos").pw_gid
1581
except KeyError:
2323
for name in ("_mandos", "mandos", "nobody"):
1582
2324
try:
1583
uid = pwd.getpwnam(u"mandos").pw_uid
1584
gid = pwd.getpwnam(u"mandos").pw_gid
2325
uid = pwd.getpwnam(name).pw_uid
2326
gid = pwd.getpwnam(name).pw_gid
2327
break
1585
2328
except KeyError:
1586
try:
1587
uid = pwd.getpwnam(u"nobody").pw_uid
1588
gid = pwd.getpwnam(u"nobody").pw_gid
1589
except KeyError:
1590
uid = 65534
1591
gid = 65534
2329
continue
2330
else:
2331
uid = 65534
2332
gid = 65534
1592
2333
try:
1593
2334
os.setgid(gid)
1594
2335
os.setuid(uid)
1595
except OSError, error:
1596
if error[0] != errno.EPERM:
2336
except OSError as error:
2337
if error.errno != errno.EPERM:
1597
2338
raise error
1598
2339
1599
# Enable all possible GnuTLS debugging
1600
2340
if debug:
2341
# Enable all possible GnuTLS debugging
2342
1601
2343
# "Use a log level over 10 to enable all debugging options."
1602
2344
# - GnuTLS manual
1603
2345
gnutls.library.functions.gnutls_global_set_log_level(11)
1604
2346
1605
2347
@gnutls.library.types.gnutls_log_func
1606
2348
def debug_gnutls(level, string):
1607
logger.debug(u"GnuTLS: %s", string[:-1])
2349
logger.debug("GnuTLS: %s", string[:-1])
1608
2350
1609
2351
(gnutls.library.functions
1610
2352
.gnutls_global_set_log_function(debug_gnutls))
2353
2354
# Redirect stdin so all checkers get /dev/null
2355
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2356
os.dup2(null, sys.stdin.fileno())
2357
if null > 2:
2358
os.close(null)
2359
2360
# Need to fork before connecting to D-Bus
2361
if not debug:
2362
# Close all input and output, do double fork, etc.
2363
daemon()
2364
2365
# multiprocessing will use threads, so before we use gobject we
2366
# need to inform gobject that threads will be used.
2367
gobject.threads_init()
1611
2368
1612
2369
global main_loop
1613
2370
# From the Avahi example code
1614
DBusGMainLoop(set_as_default=True )
2371
DBusGMainLoop(set_as_default=True)
1615
2372
main_loop = gobject.MainLoop()
1616
2373
bus = dbus.SystemBus()
1617
2374
# End of Avahi example code
1618
2375
if use_dbus:
1619
2376
try:
1620
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2377
bus_name = dbus.service.BusName("se.recompile.Mandos",
1621
2378
bus, do_not_queue=True)
1622
except dbus.exceptions.NameExistsException, e:
1623
logger.error(unicode(e) + u", disabling D-Bus")
2379
old_bus_name = (dbus.service.BusName
2380
("se.bsnet.fukt.Mandos", bus,
2381
do_not_queue=True))
2382
except dbus.exceptions.NameExistsException as e:
2383
logger.error("Disabling D-Bus:", exc_info=e)
1624
2384
use_dbus = False
1625
server_settings[u"use_dbus"] = False
2385
server_settings["use_dbus"] = False
1626
2386
tcp_server.use_dbus = False
1627
2387
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1628
service = AvahiService(name = server_settings[u"servicename"],
1629
servicetype = u"_mandos._tcp",
1630
protocol = protocol, bus = bus)
2388
service = AvahiServiceToSyslog(name =
2389
server_settings["servicename"],
2390
servicetype = "_mandos._tcp",
2391
protocol = protocol, bus = bus)
1631
2392
if server_settings["interface"]:
1632
2393
service.interface = (if_nametoindex
1633
(str(server_settings[u"interface"])))
2394
(str(server_settings["interface"])))
2395
2396
global multiprocessing_manager
2397
multiprocessing_manager = multiprocessing.Manager()
1634
2398
1635
2399
client_class = Client
1636
2400
if use_dbus:
1637
2401
client_class = functools.partial(ClientDBus, bus = bus)
1638
tcp_server.clients.update(set(
1639
client_class(name = section,
1640
config= dict(client_config.items(section)))
1641
for section in client_config.sections()))
2402
2403
client_settings = Client.config_parser(client_config)
2404
old_client_settings = {}
2405
clients_data = {}
2406
2407
# Get client data and settings from last running state.
2408
if server_settings["restore"]:
2409
try:
2410
with open(stored_state_path, "rb") as stored_state:
2411
clients_data, old_client_settings = (pickle.load
2412
(stored_state))
2413
os.remove(stored_state_path)
2414
except IOError as e:
2415
if e.errno == errno.ENOENT:
2416
logger.warning("Could not load persistent state: {0}"
2417
.format(os.strerror(e.errno)))
2418
else:
2419
logger.critical("Could not load persistent state:",
2420
exc_info=e)
2421
raise
2422
except EOFError as e:
2423
logger.warning("Could not load persistent state: "
2424
"EOFError:", exc_info=e)
2425
2426
with PGPEngine() as pgp:
2427
for client_name, client in clients_data.iteritems():
2428
# Decide which value to use after restoring saved state.
2429
# We have three different values: Old config file,
2430
# new config file, and saved state.
2431
# New config value takes precedence if it differs from old
2432
# config value, otherwise use saved state.
2433
for name, value in client_settings[client_name].items():
2434
try:
2435
# For each value in new config, check if it
2436
# differs from the old config value (Except for
2437
# the "secret" attribute)
2438
if (name != "secret" and
2439
value != old_client_settings[client_name]
2440
[name]):
2441
client[name] = value
2442
except KeyError:
2443
pass
2444
2445
# Clients who has passed its expire date can still be
2446
# enabled if its last checker was successful. Clients
2447
# whose checker succeeded before we stored its state is
2448
# assumed to have successfully run all checkers during
2449
# downtime.
2450
if client["enabled"]:
2451
if datetime.datetime.utcnow() >= client["expires"]:
2452
if not client["last_checked_ok"]:
2453
logger.warning(
2454
"disabling client {0} - Client never "
2455
"performed a successful checker"
2456
.format(client_name))
2457
client["enabled"] = False
2458
elif client["last_checker_status"] != 0:
2459
logger.warning(
2460
"disabling client {0} - Client "
2461
"last checker failed with error code {1}"
2462
.format(client_name,
2463
client["last_checker_status"]))
2464
client["enabled"] = False
2465
else:
2466
client["expires"] = (datetime.datetime
2467
.utcnow()
2468
+ client["timeout"])
2469
logger.debug("Last checker succeeded,"
2470
" keeping {0} enabled"
2471
.format(client_name))
2472
try:
2473
client["secret"] = (
2474
pgp.decrypt(client["encrypted_secret"],
2475
client_settings[client_name]
2476
["secret"]))
2477
except PGPError:
2478
# If decryption fails, we use secret from new settings
2479
logger.debug("Failed to decrypt {0} old secret"
2480
.format(client_name))
2481
client["secret"] = (
2482
client_settings[client_name]["secret"])
2483
2484
# Add/remove clients based on new changes made to config
2485
for client_name in (set(old_client_settings)
2486
- set(client_settings)):
2487
del clients_data[client_name]
2488
for client_name in (set(client_settings)
2489
- set(old_client_settings)):
2490
clients_data[client_name] = client_settings[client_name]
2491
2492
# Create all client objects
2493
for client_name, client in clients_data.iteritems():
2494
tcp_server.clients[client_name] = client_class(
2495
name = client_name, settings = client)
2496
1642
2497
if not tcp_server.clients:
1643
logger.warning(u"No clients defined")
1644
1645
if debug:
1646
# Redirect stdin so all checkers get /dev/null
1647
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1648
os.dup2(null, sys.stdin.fileno())
1649
if null > 2:
1650
os.close(null)
1651
else:
1652
# No console logging
1653
logger.removeHandler(console)
1654
# Close all input and output, do double fork, etc.
1655
daemon()
1656
1657
try:
1658
with pidfile:
1659
pid = os.getpid()
1660
pidfile.write(str(pid) + "\n")
1661
del pidfile
1662
except IOError:
1663
logger.error(u"Could not write to file %r with PID %d",
1664
pidfilename, pid)
1665
except NameError:
1666
# "pidfile" was never created
1667
pass
1668
del pidfilename
2498
logger.warning("No clients defined")
1669
2499
1670
2500
if not debug:
1671
signal.signal(signal.SIGINT, signal.SIG_IGN)
2501
try:
2502
with pidfile:
2503
pid = os.getpid()
2504
pidfile.write(str(pid) + "\n".encode("utf-8"))
2505
del pidfile
2506
except IOError:
2507
logger.error("Could not write to file %r with PID %d",
2508
pidfilename, pid)
2509
except NameError:
2510
# "pidfile" was never created
2511
pass
2512
del pidfilename
2513
1672
2514
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1673
2515
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1674
2516
1675
2517
if use_dbus:
1676
class MandosDBusService(dbus.service.Object):
2518
@alternate_dbus_interfaces({"se.recompile.Mandos":
2519
"se.bsnet.fukt.Mandos"})
2520
class MandosDBusService(DBusObjectWithProperties):
1677
2521
"""A D-Bus proxy object"""
1678
2522
def __init__(self):
1679
dbus.service.Object.__init__(self, bus, u"/")
1680
_interface = u"se.bsnet.fukt.Mandos"
1681
1682
@dbus.service.signal(_interface, signature=u"o")
2523
dbus.service.Object.__init__(self, bus, "/")
2524
_interface = "se.recompile.Mandos"
2525
2526
@dbus_interface_annotations(_interface)
2527
def _foo(self):
2528
return { "org.freedesktop.DBus.Property"
2529
".EmitsChangedSignal":
2530
"false"}
2531
2532
@dbus.service.signal(_interface, signature="o")
1683
2533
def ClientAdded(self, objpath):
1684
2534
"D-Bus signal"
1685
2535
pass
1686
2536
1687
@dbus.service.signal(_interface, signature=u"ss")
2537
@dbus.service.signal(_interface, signature="ss")
1688
2538
def ClientNotFound(self, fingerprint, address):
1689
2539
"D-Bus signal"
1690
2540
pass
1691
2541
1692
@dbus.service.signal(_interface, signature=u"os")
2542
@dbus.service.signal(_interface, signature="os")
1693
2543
def ClientRemoved(self, objpath, name):
1694
2544
"D-Bus signal"
1695
2545
pass
1696
2546
1697
@dbus.service.method(_interface, out_signature=u"ao")
2547
@dbus.service.method(_interface, out_signature="ao")
1698
2548
def GetAllClients(self):
1699
2549
"D-Bus method"
1700
2550
return dbus.Array(c.dbus_object_path
1701
for c in tcp_server.clients)
2551
for c in
2552
tcp_server.clients.itervalues())
1702
2553
1703
2554
@dbus.service.method(_interface,
1704
out_signature=u"a{oa{sv}}")
2555
out_signature="a{oa{sv}}")
1705
2556
def GetAllClientsWithProperties(self):
1706
2557
"D-Bus method"
1707
2558
return dbus.Dictionary(
1708
((c.dbus_object_path, c.GetAll(u""))
1709
for c in tcp_server.clients),
1710
signature=u"oa{sv}")
2559
((c.dbus_object_path, c.GetAll(""))
2560
for c in tcp_server.clients.itervalues()),
2561
signature="oa{sv}")
1711
2562
1712
@dbus.service.method(_interface, in_signature=u"o")
2563
@dbus.service.method(_interface, in_signature="o")
1713
2564
def RemoveClient(self, object_path):
1714
2565
"D-Bus method"
1715
for c in tcp_server.clients:
2566
for c in tcp_server.clients.itervalues():
1716
2567
if c.dbus_object_path == object_path:
1717
tcp_server.clients.remove(c)
2568
del tcp_server.clients[c.name]
1718
2569
c.remove_from_connection()
1719
2570
# Don't signal anything except ClientRemoved
1720
2571
c.disable(quiet=True)
1731
2582
"Cleanup function; run on exit"
1732
2583
service.cleanup()
1733
2584
2585
multiprocessing.active_children()
2586
if not (tcp_server.clients or client_settings):
2587
return
2588
2589
# Store client before exiting. Secrets are encrypted with key
2590
# based on what config file has. If config file is
2591
# removed/edited, old secret will thus be unrecovable.
2592
clients = {}
2593
with PGPEngine() as pgp:
2594
for client in tcp_server.clients.itervalues():
2595
key = client_settings[client.name]["secret"]
2596
client.encrypted_secret = pgp.encrypt(client.secret,
2597
key)
2598
client_dict = {}
2599
2600
# A list of attributes that can not be pickled
2601
# + secret.
2602
exclude = set(("bus", "changedstate", "secret",
2603
"checker"))
2604
for name, typ in (inspect.getmembers
2605
(dbus.service.Object)):
2606
exclude.add(name)
2607
2608
client_dict["encrypted_secret"] = (client
2609
.encrypted_secret)
2610
for attr in client.client_structure:
2611
if attr not in exclude:
2612
client_dict[attr] = getattr(client, attr)
2613
2614
clients[client.name] = client_dict
2615
del client_settings[client.name]["secret"]
2616
2617
try:
2618
with (tempfile.NamedTemporaryFile
2619
(mode='wb', suffix=".pickle", prefix='clients-',
2620
dir=os.path.dirname(stored_state_path),
2621
delete=False)) as stored_state:
2622
pickle.dump((clients, client_settings), stored_state)
2623
tempname=stored_state.name
2624
os.rename(tempname, stored_state_path)
2625
except (IOError, OSError) as e:
2626
if not debug:
2627
try:
2628
os.remove(tempname)
2629
except NameError:
2630
pass
2631
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2632
logger.warning("Could not save persistent state: {0}"
2633
.format(os.strerror(e.errno)))
2634
else:
2635
logger.warning("Could not save persistent state:",
2636
exc_info=e)
2637
raise e
2638
2639
# Delete all clients, and settings from config
1734
2640
while tcp_server.clients:
1735
client = tcp_server.clients.pop()
2641
name, client = tcp_server.clients.popitem()
1736
2642
if use_dbus:
1737
2643
client.remove_from_connection()
1738
client.disable_hook = None
1739
2644
# Don't signal anything except ClientRemoved
1740
2645
client.disable(quiet=True)
1741
2646
if use_dbus:
1742
2647
# Emit D-Bus signal
1743
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2648
mandos_dbus_service.ClientRemoved(client
2649
.dbus_object_path,
1744
2650
client.name)
2651
client_settings.clear()
1745
2652
1746
2653
atexit.register(cleanup)
1747
2654
1748
for client in tcp_server.clients:
2655
for client in tcp_server.clients.itervalues():
1749
2656
if use_dbus:
1750
2657
# Emit D-Bus signal
1751
2658
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1752
client.enable()
2659
# Need to initiate checking of clients
2660
if client.enabled:
2661
client.init_checker()
1753
2662
1754
2663
tcp_server.enable()
1755
2664
tcp_server.server_activate()
1757
2666
# Find out what port we got
1758
2667
service.port = tcp_server.socket.getsockname()[1]
1759
2668
if use_ipv6:
1760
logger.info(u"Now listening on address %r, port %d,"
1761
" flowinfo %d, scope_id %d"
1762
% tcp_server.socket.getsockname())
2669
logger.info("Now listening on address %r, port %d,"
2670
" flowinfo %d, scope_id %d",
2671
*tcp_server.socket.getsockname())
1763
2672
else: # IPv4
1764
logger.info(u"Now listening on address %r, port %d"
1765
% tcp_server.socket.getsockname())
2673
logger.info("Now listening on address %r, port %d",
2674
*tcp_server.socket.getsockname())
1766
2675
1767
2676
#service.interface = tcp_server.socket.getsockname()[3]
1768
2677
1770
2679
# From the Avahi example code
1771
2680
try:
1772
2681
service.activate()
1773
except dbus.exceptions.DBusException, error:
1774
logger.critical(u"DBusException: %s", error)
2682
except dbus.exceptions.DBusException as error:
2683
logger.critical("D-Bus Exception", exc_info=error)
1775
2684
cleanup()
1776
2685
sys.exit(1)
1777
2686
# End of Avahi example code
1781
2690
(tcp_server.handle_request
1782
2691
(*args[2:], **kwargs) or True))
1783
2692
1784
logger.debug(u"Starting main loop")
2693
logger.debug("Starting main loop")
1785
2694
main_loop.run()
1786
except AvahiError, error:
1787
logger.critical(u"AvahiError: %s", error)
2695
except AvahiError as error:
2696
logger.critical("Avahi Error", exc_info=error)
1788
2697
cleanup()
1789
2698
sys.exit(1)
1790
2699
except KeyboardInterrupt:
1791
2700
if debug:
1792
print >> sys.stderr
1793
logger.debug(u"Server received KeyboardInterrupt")
1794
logger.debug(u"Server exiting")
2701
print("", file=sys.stderr)
2702
logger.debug("Server received KeyboardInterrupt")
2703
logger.debug("Server exiting")
1795
2704
# Must run before the D-Bus bus name gets deregistered
1796
2705
cleanup()
1797
2706
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0