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- Committer: Teddy Hogeborn
- Date: 2011-03-08 19:09:03 UTC
- Revision ID: teddy@fukt.bsnet.se-20110308190903-j499ebtb9bpk31ar
* INSTALL: Updated.
- files removed:
- debian/mandos-client.examples
- debian/upstream
- network-hooks.d
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python2.7
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
30
#
31
# Contact the authors at <mandos@recompile.se>.
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
#
33
33
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
37
import SocketServer as socketserver
43
38
import socket
44
import argparse
39
import optparse
45
40
import datetime
46
41
import errno
47
42
import gnutls.crypto
50
45
import gnutls.library.functions
51
46
import gnutls.library.constants
52
47
import gnutls.library.types
53
try:
54
import ConfigParser as configparser
55
except ImportError:
56
import configparser
48
import ConfigParser as configparser
57
49
import sys
58
50
import re
59
51
import os
68
60
import struct
69
61
import fcntl
70
62
import functools
71
try:
72
import cPickle as pickle
73
except ImportError:
74
import pickle
63
import cPickle as pickle
75
64
import multiprocessing
76
import types
77
import binascii
78
import tempfile
79
import itertools
80
import collections
81
import codecs
82
65
83
66
import dbus
84
67
import dbus.service
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
68
import gobject
89
69
import avahi
90
70
from dbus.mainloop.glib import DBusGMainLoop
91
71
import ctypes
101
81
except ImportError:
102
82
SO_BINDTODEVICE = None
103
83
104
if sys.version_info.major == 2:
105
str = unicode
106
107
version = "1.6.9"
108
stored_state_file = "clients.pickle"
109
110
logger = logging.getLogger()
111
syslogger = None
112
113
try:
114
if_nametoindex = ctypes.cdll.LoadLibrary(
115
ctypes.util.find_library("c")).if_nametoindex
116
except (OSError, AttributeError):
117
118
def if_nametoindex(interface):
119
"Get an interface index the hard way, i.e. using fcntl()"
120
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
121
with contextlib.closing(socket.socket()) as s:
122
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
123
struct.pack(b"16s16x", interface))
124
interface_index = struct.unpack("I", ifreq[16:20])[0]
125
return interface_index
126
127
128
def initlogger(debug, level=logging.WARNING):
129
"""init logger and add loglevel"""
130
131
global syslogger
132
syslogger = (logging.handlers.SysLogHandler(
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
135
syslogger.setFormatter(logging.Formatter
136
('Mandos [%(process)d]: %(levelname)s:'
137
' %(message)s'))
138
logger.addHandler(syslogger)
139
140
if debug:
141
console = logging.StreamHandler()
142
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
143
' [%(process)d]:'
144
' %(levelname)s:'
145
' %(message)s'))
146
logger.addHandler(console)
147
logger.setLevel(level)
148
149
150
class PGPError(Exception):
151
"""Exception if encryption/decryption fails"""
152
pass
153
154
155
class PGPEngine(object):
156
"""A simple class for OpenPGP symmetric encryption & decryption"""
157
158
def __init__(self):
159
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
160
self.gnupgargs = ['--batch',
161
'--home', self.tempdir,
162
'--force-mdc',
163
'--quiet',
164
'--no-use-agent']
165
166
def __enter__(self):
167
return self
168
169
def __exit__(self, exc_type, exc_value, traceback):
170
self._cleanup()
171
return False
172
173
def __del__(self):
174
self._cleanup()
175
176
def _cleanup(self):
177
if self.tempdir is not None:
178
# Delete contents of tempdir
179
for root, dirs, files in os.walk(self.tempdir,
180
topdown = False):
181
for filename in files:
182
os.remove(os.path.join(root, filename))
183
for dirname in dirs:
184
os.rmdir(os.path.join(root, dirname))
185
# Remove tempdir
186
os.rmdir(self.tempdir)
187
self.tempdir = None
188
189
def password_encode(self, password):
190
# Passphrase can not be empty and can not contain newlines or
191
# NUL bytes. So we prefix it and hex encode it.
192
encoded = b"mandos" + binascii.hexlify(password)
193
if len(encoded) > 2048:
194
# GnuPG can't handle long passwords, so encode differently
195
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
196
.replace(b"\n", b"\\n")
197
.replace(b"\0", b"\\x00"))
198
return encoded
199
200
def encrypt(self, data, password):
201
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
204
passfile.write(passphrase)
205
passfile.flush()
206
proc = subprocess.Popen(['gpg', '--symmetric',
207
'--passphrase-file',
208
passfile.name]
209
+ self.gnupgargs,
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
214
if proc.returncode != 0:
215
raise PGPError(err)
216
return ciphertext
217
218
def decrypt(self, data, password):
219
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
222
passfile.write(passphrase)
223
passfile.flush()
224
proc = subprocess.Popen(['gpg', '--decrypt',
225
'--passphrase-file',
226
passfile.name]
227
+ self.gnupgargs,
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
232
if proc.returncode != 0:
233
raise PGPError(err)
234
return decrypted_plaintext
235
84
85
version = "1.2.3"
86
87
#logger = logging.getLogger('mandos')
88
logger = logging.Logger('mandos')
89
syslogger = (logging.handlers.SysLogHandler
90
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
92
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
95
logger.addHandler(syslogger)
96
97
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
99
' %(levelname)s:'
100
' %(message)s'))
101
logger.addHandler(console)
236
102
237
103
class AvahiError(Exception):
238
104
def __init__(self, value, *args, **kwargs):
239
105
self.value = value
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
106
super(AvahiError, self).__init__(value, *args, **kwargs)
107
def __unicode__(self):
108
return unicode(repr(self.value))
243
109
244
110
class AvahiServiceError(AvahiError):
245
111
pass
246
112
247
248
113
class AvahiGroupError(AvahiError):
249
114
pass
250
115
257
122
Used to optionally bind to the specified interface.
258
123
name: string; Example: 'Mandos'
259
124
type: string; Example: '_mandos._tcp'.
260
See <https://www.iana.org/assignments/service-names-port-numbers>
125
See <http://www.dns-sd.org/ServiceTypes.html>
261
126
port: integer; what port to announce
262
127
TXT: list of strings; TXT record for the service
263
128
domain: string; Domain to publish on, default to .local if empty.
269
134
server: D-Bus Server
270
135
bus: dbus.SystemBus()
271
136
"""
272
273
def __init__(self,
274
interface = avahi.IF_UNSPEC,
275
name = None,
276
servicetype = None,
277
port = None,
278
TXT = None,
279
domain = "",
280
host = "",
281
max_renames = 32768,
282
protocol = avahi.PROTO_UNSPEC,
283
bus = None):
137
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
138
servicetype = None, port = None, TXT = None,
139
domain = "", host = "", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
284
141
self.interface = interface
285
142
self.name = name
286
143
self.type = servicetype
294
151
self.group = None # our entry group
295
152
self.server = None
296
153
self.bus = bus
297
self.entry_group_state_changed_match = None
298
299
def rename(self, remove=True):
154
def rename(self):
300
155
"""Derived from the Avahi example code"""
301
156
if self.rename_count >= self.max_renames:
302
157
logger.critical("No suitable Zeroconf service name found"
303
158
" after %i retries, exiting.",
304
159
self.rename_count)
305
160
raise AvahiServiceError("Too many renames")
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
308
self.rename_count += 1
161
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
309
162
logger.info("Changing Zeroconf service name to %r ...",
310
163
self.name)
311
if remove:
312
self.remove()
164
syslogger.setFormatter(logging.Formatter
165
('Mandos (%s) [%%(process)d]:'
166
' %%(levelname)s: %%(message)s'
167
% self.name))
168
self.remove()
313
169
try:
314
170
self.add()
315
except dbus.exceptions.DBusException as error:
316
if (error.get_dbus_name()
317
== "org.freedesktop.Avahi.CollisionError"):
318
logger.info("Local Zeroconf service name collision.")
319
return self.rename(remove=False)
320
else:
321
logger.critical("D-Bus Exception", exc_info=error)
322
self.cleanup()
323
os._exit(1)
324
171
except dbus.exceptions.DBusException, error:
172
logger.critical("DBusException: %s", error)
173
self.cleanup()
174
os._exit(1)
175
self.rename_count += 1
325
176
def remove(self):
326
177
"""Derived from the Avahi example code"""
327
if self.entry_group_state_changed_match is not None:
328
self.entry_group_state_changed_match.remove()
329
self.entry_group_state_changed_match = None
330
178
if self.group is not None:
331
179
self.group.Reset()
332
333
180
def add(self):
334
181
"""Derived from the Avahi example code"""
335
self.remove()
336
182
if self.group is None:
337
183
self.group = dbus.Interface(
338
184
self.bus.get_object(avahi.DBUS_NAME,
339
185
self.server.EntryGroupNew()),
340
186
avahi.DBUS_INTERFACE_ENTRY_GROUP)
341
self.entry_group_state_changed_match = (
342
self.group.connect_to_signal(
343
'StateChanged', self.entry_group_state_changed))
187
self.group.connect_to_signal('StateChanged',
188
self
189
.entry_group_state_changed)
344
190
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
345
191
self.name, self.type)
346
192
self.group.AddService(
352
198
dbus.UInt16(self.port),
353
199
avahi.string_array_to_txt_array(self.TXT))
354
200
self.group.Commit()
355
356
201
def entry_group_state_changed(self, state, error):
357
202
"""Derived from the Avahi example code"""
358
203
logger.debug("Avahi entry group state change: %i", state)
364
209
self.rename()
365
210
elif state == avahi.ENTRY_GROUP_FAILURE:
366
211
logger.critical("Avahi: Error in group state changed %s",
367
str(error))
368
raise AvahiGroupError("State changed: {!s}".format(error))
369
212
unicode(error))
213
raise AvahiGroupError("State changed: %s"
214
% unicode(error))
370
215
def cleanup(self):
371
216
"""Derived from the Avahi example code"""
372
217
if self.group is not None:
373
try:
374
self.group.Free()
375
except (dbus.exceptions.UnknownMethodException,
376
dbus.exceptions.DBusException):
377
pass
218
self.group.Free()
378
219
self.group = None
379
self.remove()
380
381
def server_state_changed(self, state, error=None):
220
def server_state_changed(self, state):
382
221
"""Derived from the Avahi example code"""
383
222
logger.debug("Avahi server state change: %i", state)
384
bad_states = {
385
avahi.SERVER_INVALID: "Zeroconf server invalid",
386
avahi.SERVER_REGISTERING: None,
387
avahi.SERVER_COLLISION: "Zeroconf server name collision",
388
avahi.SERVER_FAILURE: "Zeroconf server failure",
389
}
390
if state in bad_states:
391
if bad_states[state] is not None:
392
if error is None:
393
logger.error(bad_states[state])
394
else:
395
logger.error(bad_states[state] + ": %r", error)
396
self.cleanup()
223
if state == avahi.SERVER_COLLISION:
224
logger.error("Zeroconf server name collision")
225
self.remove()
397
226
elif state == avahi.SERVER_RUNNING:
398
227
self.add()
399
else:
400
if error is None:
401
logger.debug("Unknown state: %r", state)
402
else:
403
logger.debug("Unknown state: %r: %r", state, error)
404
405
228
def activate(self):
406
229
"""Derived from the Avahi example code"""
407
230
if self.server is None:
408
231
self.server = dbus.Interface(
409
232
self.bus.get_object(avahi.DBUS_NAME,
410
avahi.DBUS_PATH_SERVER,
411
follow_name_owner_changes=True),
233
avahi.DBUS_PATH_SERVER),
412
234
avahi.DBUS_INTERFACE_SERVER)
413
235
self.server.connect_to_signal("StateChanged",
414
self.server_state_changed)
236
self.server_state_changed)
415
237
self.server_state_changed(self.server.GetState())
416
238
417
239
418
class AvahiServiceToSyslog(AvahiService):
419
def rename(self, *args, **kwargs):
420
"""Add the new name to the syslog messages"""
421
ret = AvahiService.rename(self, *args, **kwargs)
422
syslogger.setFormatter(logging.Formatter(
423
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
424
.format(self.name)))
425
return ret
426
427
428
240
class Client(object):
429
241
"""A representation of a client host served by this server.
430
242
431
243
Attributes:
432
approved: bool(); 'None' if not yet approved/disapproved
244
_approved: bool(); 'None' if not yet approved/disapproved
433
245
approval_delay: datetime.timedelta(); Time to wait for approval
434
246
approval_duration: datetime.timedelta(); Duration of one approval
435
247
checker: subprocess.Popen(); a running checker process used
442
254
instance %(name)s can be used in the command.
443
255
checker_initiator_tag: a gobject event source tag, or None
444
256
created: datetime.datetime(); (UTC) object creation
445
client_structure: Object describing what attributes a client has
446
and is used for storing the client at exit
447
257
current_checker_command: string; current running checker_command
258
disable_hook: If set, called by disable() as disable_hook(self)
448
259
disable_initiator_tag: a gobject event source tag, or None
449
260
enabled: bool()
450
261
fingerprint: string (40 or 32 hexadecimal digits); used to
453
264
interval: datetime.timedelta(); How often to start a new checker
454
265
last_approval_request: datetime.datetime(); (UTC) or None
455
266
last_checked_ok: datetime.datetime(); (UTC) or None
456
last_checker_status: integer between 0 and 255 reflecting exit
457
status of last checker. -1 reflects crashed
458
checker, -2 means no checker completed yet.
459
last_enabled: datetime.datetime(); (UTC) or None
267
last_enabled: datetime.datetime(); (UTC)
460
268
name: string; from the config file, used in log messages and
461
269
D-Bus identifiers
462
270
secret: bytestring; sent verbatim (over TLS) to client
463
271
timeout: datetime.timedelta(); How long from last_checked_ok
464
272
until this client is disabled
465
extended_timeout: extra long timeout when secret has been sent
466
273
runtime_expansions: Allowed attributes for runtime expansion.
467
expires: datetime.datetime(); time (UTC) when a client will be
468
disabled, or None
469
server_settings: The server_settings dict from main()
470
274
"""
471
275
472
276
runtime_expansions = ("approval_delay", "approval_duration",
473
"created", "enabled", "expires",
474
"fingerprint", "host", "interval",
475
"last_approval_request", "last_checked_ok",
277
"created", "enabled", "fingerprint",
278
"host", "interval", "last_checked_ok",
476
279
"last_enabled", "name", "timeout")
477
client_defaults = {
478
"timeout": "PT5M",
479
"extended_timeout": "PT15M",
480
"interval": "PT2M",
481
"checker": "fping -q -- %%(host)s",
482
"host": "",
483
"approval_delay": "PT0S",
484
"approval_duration": "PT1S",
485
"approved_by_default": "True",
486
"enabled": "True",
487
}
488
280
489
281
@staticmethod
490
def config_parser(config):
491
"""Construct a new dict of client settings of this form:
492
{ client_name: {setting_name: value, ...}, ...}
493
with exceptions for any special settings as defined above.
494
NOTE: Must be a pure function. Must return the same result
495
value given the same arguments.
496
"""
497
settings = {}
498
for client_name in config.sections():
499
section = dict(config.items(client_name))
500
client = settings[client_name] = {}
501
502
client["host"] = section["host"]
503
# Reformat values from string types to Python types
504
client["approved_by_default"] = config.getboolean(
505
client_name, "approved_by_default")
506
client["enabled"] = config.getboolean(client_name,
507
"enabled")
508
509
# Uppercase and remove spaces from fingerprint for later
510
# comparison purposes with return value from the
511
# fingerprint() function
512
client["fingerprint"] = (section["fingerprint"].upper()
513
.replace(" ", ""))
514
if "secret" in section:
515
client["secret"] = section["secret"].decode("base64")
516
elif "secfile" in section:
517
with open(os.path.expanduser(os.path.expandvars
518
(section["secfile"])),
519
"rb") as secfile:
520
client["secret"] = secfile.read()
521
else:
522
raise TypeError("No secret or secfile for section {}"
523
.format(section))
524
client["timeout"] = string_to_delta(section["timeout"])
525
client["extended_timeout"] = string_to_delta(
526
section["extended_timeout"])
527
client["interval"] = string_to_delta(section["interval"])
528
client["approval_delay"] = string_to_delta(
529
section["approval_delay"])
530
client["approval_duration"] = string_to_delta(
531
section["approval_duration"])
532
client["checker_command"] = section["checker"]
533
client["last_approval_request"] = None
534
client["last_checked_ok"] = None
535
client["last_checker_status"] = -2
536
537
return settings
538
539
def __init__(self, settings, name = None, server_settings=None):
282
def _timedelta_to_milliseconds(td):
283
"Convert a datetime.timedelta() to milliseconds"
284
return ((td.days * 24 * 60 * 60 * 1000)
285
+ (td.seconds * 1000)
286
+ (td.microseconds // 1000))
287
288
def timeout_milliseconds(self):
289
"Return the 'timeout' attribute in milliseconds"
290
return self._timedelta_to_milliseconds(self.timeout)
291
292
def interval_milliseconds(self):
293
"Return the 'interval' attribute in milliseconds"
294
return self._timedelta_to_milliseconds(self.interval)
295
296
def approval_delay_milliseconds(self):
297
return self._timedelta_to_milliseconds(self.approval_delay)
298
299
def __init__(self, name = None, disable_hook=None, config=None):
300
"""Note: the 'checker' key in 'config' sets the
301
'checker_command' attribute and *not* the 'checker'
302
attribute."""
540
303
self.name = name
541
if server_settings is None:
542
server_settings = {}
543
self.server_settings = server_settings
544
# adding all client settings
545
for setting, value in settings.items():
546
setattr(self, setting, value)
547
548
if self.enabled:
549
if not hasattr(self, "last_enabled"):
550
self.last_enabled = datetime.datetime.utcnow()
551
if not hasattr(self, "expires"):
552
self.expires = (datetime.datetime.utcnow()
553
+ self.timeout)
554
else:
555
self.last_enabled = None
556
self.expires = None
557
304
if config is None:
305
config = {}
558
306
logger.debug("Creating client %r", self.name)
307
# Uppercase and remove spaces from fingerprint for later
308
# comparison purposes with return value from the fingerprint()
309
# function
310
self.fingerprint = (config["fingerprint"].upper()
311
.replace(" ", ""))
559
312
logger.debug(" Fingerprint: %s", self.fingerprint)
560
self.created = settings.get("created",
561
datetime.datetime.utcnow())
562
563
# attributes specific for this server instance
313
if "secret" in config:
314
self.secret = config["secret"].decode("base64")
315
elif "secfile" in config:
316
with open(os.path.expanduser(os.path.expandvars
317
(config["secfile"])),
318
"rb") as secfile:
319
self.secret = secfile.read()
320
else:
321
raise TypeError("No secret or secfile for client %s"
322
% self.name)
323
self.host = config.get("host", "")
324
self.created = datetime.datetime.utcnow()
325
self.enabled = False
326
self.last_approval_request = None
327
self.last_enabled = None
328
self.last_checked_ok = None
329
self.timeout = string_to_delta(config["timeout"])
330
self.interval = string_to_delta(config["interval"])
331
self.disable_hook = disable_hook
564
332
self.checker = None
565
333
self.checker_initiator_tag = None
566
334
self.disable_initiator_tag = None
567
335
self.checker_callback_tag = None
336
self.checker_command = config["checker"]
568
337
self.current_checker_command = None
569
self.approved = None
338
self.last_connect = None
339
self._approved = None
340
self.approved_by_default = config.get("approved_by_default",
341
True)
570
342
self.approvals_pending = 0
571
self.changedstate = multiprocessing_manager.Condition(
572
multiprocessing_manager.Lock())
573
self.client_structure = [attr
574
for attr in self.__dict__.iterkeys()
575
if not attr.startswith("_")]
576
self.client_structure.append("client_structure")
577
578
for name, t in inspect.getmembers(
579
type(self), lambda obj: isinstance(obj, property)):
580
if not name.startswith("_"):
581
self.client_structure.append(name)
343
self.approval_delay = string_to_delta(
344
config["approval_delay"])
345
self.approval_duration = string_to_delta(
346
config["approval_duration"])
347
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
582
348
583
# Send notice to process children that client state has changed
584
349
def send_changedstate(self):
585
with self.changedstate:
586
self.changedstate.notify_all()
587
350
self.changedstate.acquire()
351
self.changedstate.notify_all()
352
self.changedstate.release()
353
588
354
def enable(self):
589
355
"""Start this client's checker and timeout hooks"""
590
356
if getattr(self, "enabled", False):
591
357
# Already enabled
592
358
return
593
self.expires = datetime.datetime.utcnow() + self.timeout
594
self.enabled = True
359
self.send_changedstate()
595
360
self.last_enabled = datetime.datetime.utcnow()
596
self.init_checker()
597
self.send_changedstate()
361
# Schedule a new checker to be started an 'interval' from now,
362
# and every interval from then on.
363
self.checker_initiator_tag = (gobject.timeout_add
364
(self.interval_milliseconds(),
365
self.start_checker))
366
# Schedule a disable() when 'timeout' has passed
367
self.disable_initiator_tag = (gobject.timeout_add
368
(self.timeout_milliseconds(),
369
self.disable))
370
self.enabled = True
371
# Also start a new checker *right now*.
372
self.start_checker()
598
373
599
374
def disable(self, quiet=True):
600
375
"""Disable this client."""
601
376
if not getattr(self, "enabled", False):
602
377
return False
603
378
if not quiet:
379
self.send_changedstate()
380
if not quiet:
604
381
logger.info("Disabling client %s", self.name)
605
if getattr(self, "disable_initiator_tag", None) is not None:
382
if getattr(self, "disable_initiator_tag", False):
606
383
gobject.source_remove(self.disable_initiator_tag)
607
384
self.disable_initiator_tag = None
608
self.expires = None
609
if getattr(self, "checker_initiator_tag", None) is not None:
385
if getattr(self, "checker_initiator_tag", False):
610
386
gobject.source_remove(self.checker_initiator_tag)
611
387
self.checker_initiator_tag = None
612
388
self.stop_checker()
389
if self.disable_hook:
390
self.disable_hook(self)
613
391
self.enabled = False
614
if not quiet:
615
self.send_changedstate()
616
392
# Do not run this again if called by a gobject.timeout_add
617
393
return False
618
394
619
395
def __del__(self):
396
self.disable_hook = None
620
397
self.disable()
621
398
622
def init_checker(self):
623
# Schedule a new checker to be started an 'interval' from now,
624
# and every interval from then on.
625
if self.checker_initiator_tag is not None:
626
gobject.source_remove(self.checker_initiator_tag)
627
self.checker_initiator_tag = gobject.timeout_add(
628
int(self.interval.total_seconds() * 1000),
629
self.start_checker)
630
# Schedule a disable() when 'timeout' has passed
631
if self.disable_initiator_tag is not None:
632
gobject.source_remove(self.disable_initiator_tag)
633
self.disable_initiator_tag = gobject.timeout_add(
634
int(self.timeout.total_seconds() * 1000), self.disable)
635
# Also start a new checker *right now*.
636
self.start_checker()
637
638
399
def checker_callback(self, pid, condition, command):
639
400
"""The checker has completed, so take appropriate actions."""
640
401
self.checker_callback_tag = None
641
402
self.checker = None
642
403
if os.WIFEXITED(condition):
643
self.last_checker_status = os.WEXITSTATUS(condition)
644
if self.last_checker_status == 0:
404
exitstatus = os.WEXITSTATUS(condition)
405
if exitstatus == 0:
645
406
logger.info("Checker for %(name)s succeeded",
646
407
vars(self))
647
408
self.checked_ok()
648
409
else:
649
logger.info("Checker for %(name)s failed", vars(self))
410
logger.info("Checker for %(name)s failed",
411
vars(self))
650
412
else:
651
self.last_checker_status = -1
652
413
logger.warning("Checker for %(name)s crashed?",
653
414
vars(self))
654
415
655
416
def checked_ok(self):
656
"""Assert that the client has been seen, alive and well."""
417
"""Bump up the timeout for this client.
418
419
This should only be called when the client has been seen,
420
alive and well.
421
"""
657
422
self.last_checked_ok = datetime.datetime.utcnow()
658
self.last_checker_status = 0
659
self.bump_timeout()
660
661
def bump_timeout(self, timeout=None):
662
"""Bump up the timeout for this client."""
663
if timeout is None:
664
timeout = self.timeout
665
if self.disable_initiator_tag is not None:
666
gobject.source_remove(self.disable_initiator_tag)
667
self.disable_initiator_tag = None
668
if getattr(self, "enabled", False):
669
self.disable_initiator_tag = gobject.timeout_add(
670
int(timeout.total_seconds() * 1000), self.disable)
671
self.expires = datetime.datetime.utcnow() + timeout
423
gobject.source_remove(self.disable_initiator_tag)
424
self.disable_initiator_tag = (gobject.timeout_add
425
(self.timeout_milliseconds(),
426
self.disable))
672
427
673
428
def need_approval(self):
674
429
self.last_approval_request = datetime.datetime.utcnow()
679
434
If a checker already exists, leave it running and do
680
435
nothing."""
681
436
# The reason for not killing a running checker is that if we
682
# did that, and if a checker (for some reason) started running
683
# slowly and taking more than 'interval' time, then the client
684
# would inevitably timeout, since no checker would get a
685
# chance to run to completion. If we instead leave running
437
# did that, then if a checker (for some reason) started
438
# running slowly and taking more than 'interval' time, the
439
# client would inevitably timeout, since no checker would get
440
# a chance to run to completion. If we instead leave running
686
441
# checkers alone, the checker would have to take more time
687
442
# than 'timeout' for the client to be disabled, which is as it
688
443
# should be.
690
445
# If a checker exists, make sure it is not a zombie
691
446
try:
692
447
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
693
except AttributeError:
694
pass
695
except OSError as error:
696
if error.errno != errno.ECHILD:
697
raise
448
except (AttributeError, OSError), error:
449
if (isinstance(error, OSError)
450
and error.errno != errno.ECHILD):
451
raise error
698
452
else:
699
453
if pid:
700
454
logger.warning("Checker was a zombie")
703
457
self.current_checker_command)
704
458
# Start a new checker if needed
705
459
if self.checker is None:
706
# Escape attributes for the shell
707
escaped_attrs = {
708
attr: re.escape(str(getattr(self, attr)))
709
for attr in self.runtime_expansions }
710
460
try:
711
command = self.checker_command % escaped_attrs
712
except TypeError as error:
713
logger.error('Could not format string "%s"',
714
self.checker_command,
715
exc_info=error)
716
return True # Try again later
461
# In case checker_command has exactly one % operator
462
command = self.checker_command % self.host
463
except TypeError:
464
# Escape attributes for the shell
465
escaped_attrs = dict(
466
(attr,
467
re.escape(unicode(str(getattr(self, attr, "")),
468
errors=
469
'replace')))
470
for attr in
471
self.runtime_expansions)
472
473
try:
474
command = self.checker_command % escaped_attrs
475
except TypeError, error:
476
logger.error('Could not format string "%s":'
477
' %s', self.checker_command, error)
478
return True # Try again later
717
479
self.current_checker_command = command
718
480
try:
719
logger.info("Starting checker %r for %s", command,
720
self.name)
481
logger.info("Starting checker %r for %s",
482
command, self.name)
721
483
# We don't need to redirect stdout and stderr, since
722
484
# in normal mode, that is already done by daemon(),
723
485
# and in debug mode we don't want to. (Stdin is
724
486
# always replaced by /dev/null.)
725
# The exception is when not debugging but nevertheless
726
# running in the foreground; use the previously
727
# created wnull.
728
popen_args = {}
729
if (not self.server_settings["debug"]
730
and self.server_settings["foreground"]):
731
popen_args.update({"stdout": wnull,
732
"stderr": wnull })
733
487
self.checker = subprocess.Popen(command,
734
488
close_fds=True,
735
shell=True,
736
cwd="/",
737
**popen_args)
738
except OSError as error:
739
logger.error("Failed to start subprocess",
740
exc_info=error)
741
return True
742
self.checker_callback_tag = gobject.child_watch_add(
743
self.checker.pid, self.checker_callback, data=command)
744
# The checker may have completed before the gobject
745
# watch was added. Check for this.
746
try:
489
shell=True, cwd="/")
490
self.checker_callback_tag = (gobject.child_watch_add
491
(self.checker.pid,
492
self.checker_callback,
493
data=command))
494
# The checker may have completed before the gobject
495
# watch was added. Check for this.
747
496
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
748
except OSError as error:
749
if error.errno == errno.ECHILD:
750
# This should never happen
751
logger.error("Child process vanished",
752
exc_info=error)
753
return True
754
raise
755
if pid:
756
gobject.source_remove(self.checker_callback_tag)
757
self.checker_callback(pid, status, command)
497
if pid:
498
gobject.source_remove(self.checker_callback_tag)
499
self.checker_callback(pid, status, command)
500
except OSError, error:
501
logger.error("Failed to start subprocess: %s",
502
error)
758
503
# Re-run this periodically if run by gobject.timeout_add
759
504
return True
760
505
767
512
return
768
513
logger.debug("Stopping checker for %(name)s", vars(self))
769
514
try:
770
self.checker.terminate()
515
os.kill(self.checker.pid, signal.SIGTERM)
771
516
#time.sleep(0.5)
772
517
#if self.checker.poll() is None:
773
# self.checker.kill()
774
except OSError as error:
518
# os.kill(self.checker.pid, signal.SIGKILL)
519
except OSError, error:
775
520
if error.errno != errno.ESRCH: # No such process
776
521
raise
777
522
self.checker = None
778
523
779
780
def dbus_service_property(dbus_interface,
781
signature="v",
782
access="readwrite",
783
byte_arrays=False):
524
def dbus_service_property(dbus_interface, signature="v",
525
access="readwrite", byte_arrays=False):
784
526
"""Decorators for marking methods of a DBusObjectWithProperties to
785
527
become properties on the D-Bus.
786
528
795
537
# "Set" method, so we fail early here:
796
538
if byte_arrays and signature != "ay":
797
539
raise ValueError("Byte arrays not supported for non-'ay'"
798
" signature {!r}".format(signature))
799
540
" signature %r" % signature)
800
541
def decorator(func):
801
542
func._dbus_is_property = True
802
543
func._dbus_interface = dbus_interface
807
548
func._dbus_name = func._dbus_name[:-14]
808
549
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
809
550
return func
810
811
return decorator
812
813
814
def dbus_interface_annotations(dbus_interface):
815
"""Decorator for marking functions returning interface annotations
816
817
Usage:
818
819
@dbus_interface_annotations("org.example.Interface")
820
def _foo(self): # Function name does not matter
821
return {"org.freedesktop.DBus.Deprecated": "true",
822
"org.freedesktop.DBus.Property.EmitsChangedSignal":
823
"false"}
824
"""
825
826
def decorator(func):
827
func._dbus_is_interface = True
828
func._dbus_interface = dbus_interface
829
func._dbus_name = dbus_interface
830
return func
831
832
return decorator
833
834
835
def dbus_annotations(annotations):
836
"""Decorator to annotate D-Bus methods, signals or properties
837
Usage:
838
839
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
840
"org.freedesktop.DBus.Property."
841
"EmitsChangedSignal": "false"})
842
@dbus_service_property("org.example.Interface", signature="b",
843
access="r")
844
def Property_dbus_property(self):
845
return dbus.Boolean(False)
846
"""
847
848
def decorator(func):
849
func._dbus_annotations = annotations
850
return func
851
852
551
return decorator
853
552
854
553
855
554
class DBusPropertyException(dbus.exceptions.DBusException):
856
555
"""A base class for D-Bus property-related exceptions
857
556
"""
858
pass
557
def __unicode__(self):
558
return unicode(str(self))
859
559
860
560
861
561
class DBusPropertyAccessException(DBusPropertyException):
872
572
873
573
class DBusObjectWithProperties(dbus.service.Object):
874
574
"""A D-Bus object with properties.
875
575
876
576
Classes inheriting from this can use the dbus_service_property
877
577
decorator to expose methods as D-Bus properties. It exposes the
878
578
standard Get(), Set(), and GetAll() methods on the D-Bus.
879
579
"""
880
580
881
581
@staticmethod
882
def _is_dbus_thing(thing):
883
"""Returns a function testing if an attribute is a D-Bus thing
884
885
If called like _is_dbus_thing("method") it returns a function
886
suitable for use as predicate to inspect.getmembers().
887
"""
888
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
889
False)
582
def _is_dbus_property(obj):
583
return getattr(obj, "_dbus_is_property", False)
890
584
891
def _get_all_dbus_things(self, thing):
585
def _get_all_dbus_properties(self):
892
586
"""Returns a generator of (name, attribute) pairs
893
587
"""
894
return ((getattr(athing.__get__(self), "_dbus_name", name),
895
athing.__get__(self))
896
for cls in self.__class__.__mro__
897
for name, athing in
898
inspect.getmembers(cls, self._is_dbus_thing(thing)))
588
return ((prop._dbus_name, prop)
589
for name, prop in
590
inspect.getmembers(self, self._is_dbus_property))
899
591
900
592
def _get_dbus_property(self, interface_name, property_name):
901
593
"""Returns a bound method if one exists which is a D-Bus
902
594
property with the specified name and interface.
903
595
"""
904
for cls in self.__class__.__mro__:
905
for name, value in inspect.getmembers(
906
cls, self._is_dbus_thing("property")):
907
if (value._dbus_name == property_name
908
and value._dbus_interface == interface_name):
909
return value.__get__(self)
910
596
for name in (property_name,
597
property_name + "_dbus_property"):
598
prop = getattr(self, name, None)
599
if (prop is None
600
or not self._is_dbus_property(prop)
601
or prop._dbus_name != property_name
602
or (interface_name and prop._dbus_interface
603
and interface_name != prop._dbus_interface)):
604
continue
605
return prop
911
606
# No such property
912
raise DBusPropertyNotFound("{}:{}.{}".format(
913
self.dbus_object_path, interface_name, property_name))
607
raise DBusPropertyNotFound(self.dbus_object_path + ":"
608
+ interface_name + "."
609
+ property_name)
914
610
915
@dbus.service.method(dbus.PROPERTIES_IFACE,
916
in_signature="ss",
611
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
917
612
out_signature="v")
918
613
def Get(self, interface_name, property_name):
919
614
"""Standard D-Bus property Get() method, see D-Bus standard.
937
632
# The byte_arrays option is not supported yet on
938
633
# signatures other than "ay".
939
634
if prop._dbus_signature != "ay":
940
raise ValueError("Byte arrays not supported for non-"
941
"'ay' signature {!r}"
942
.format(prop._dbus_signature))
943
value = dbus.ByteArray(b''.join(chr(byte)
944
for byte in value))
635
raise ValueError
636
value = dbus.ByteArray(''.join(unichr(byte)
637
for byte in value))
945
638
prop(value)
946
639
947
@dbus.service.method(dbus.PROPERTIES_IFACE,
948
in_signature="s",
640
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
949
641
out_signature="a{sv}")
950
642
def GetAll(self, interface_name):
951
643
"""Standard D-Bus property GetAll() method, see D-Bus
952
644
standard.
953
645
954
646
Note: Will not include properties with access="write".
955
647
"""
956
properties = {}
957
for name, prop in self._get_all_dbus_things("property"):
648
all = {}
649
for name, prop in self._get_all_dbus_properties():
958
650
if (interface_name
959
651
and interface_name != prop._dbus_interface):
960
652
# Interface non-empty but did not match
964
656
continue
965
657
value = prop()
966
658
if not hasattr(value, "variant_level"):
967
properties[name] = value
659
all[name] = value
968
660
continue
969
properties[name] = type(value)(
970
value, variant_level = value.variant_level + 1)
971
return dbus.Dictionary(properties, signature="sv")
972
973
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
974
def PropertiesChanged(self, interface_name, changed_properties,
975
invalidated_properties):
976
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
977
standard.
978
"""
979
pass
661
all[name] = type(value)(value, variant_level=
662
value.variant_level+1)
663
return dbus.Dictionary(all, signature="sv")
980
664
981
665
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
982
666
out_signature="s",
983
667
path_keyword='object_path',
984
668
connection_keyword='connection')
985
669
def Introspect(self, object_path, connection):
986
"""Overloading of standard D-Bus method.
987
988
Inserts property tags and interface annotation tags.
670
"""Standard D-Bus method, overloaded to insert property tags.
989
671
"""
990
672
xmlstring = dbus.service.Object.Introspect(self, object_path,
991
673
connection)
992
674
try:
993
675
document = xml.dom.minidom.parseString(xmlstring)
994
995
676
def make_tag(document, name, prop):
996
677
e = document.createElement("property")
997
678
e.setAttribute("name", name)
998
679
e.setAttribute("type", prop._dbus_signature)
999
680
e.setAttribute("access", prop._dbus_access)
1000
681
return e
1001
1002
682
for if_tag in document.getElementsByTagName("interface"):
1003
# Add property tags
1004
683
for tag in (make_tag(document, name, prop)
1005
684
for name, prop
1006
in self._get_all_dbus_things("property")
685
in self._get_all_dbus_properties()
1007
686
if prop._dbus_interface
1008
687
== if_tag.getAttribute("name")):
1009
688
if_tag.appendChild(tag)
1010
# Add annotation tags
1011
for typ in ("method", "signal", "property"):
1012
for tag in if_tag.getElementsByTagName(typ):
1013
annots = dict()
1014
for name, prop in (self.
1015
_get_all_dbus_things(typ)):
1016
if (name == tag.getAttribute("name")
1017
and prop._dbus_interface
1018
== if_tag.getAttribute("name")):
1019
annots.update(getattr(
1020
prop, "_dbus_annotations", {}))
1021
for name, value in annots.items():
1022
ann_tag = document.createElement(
1023
"annotation")
1024
ann_tag.setAttribute("name", name)
1025
ann_tag.setAttribute("value", value)
1026
tag.appendChild(ann_tag)
1027
# Add interface annotation tags
1028
for annotation, value in dict(
1029
itertools.chain.from_iterable(
1030
annotations().items()
1031
for name, annotations
1032
in self._get_all_dbus_things("interface")
1033
if name == if_tag.getAttribute("name")
1034
)).items():
1035
ann_tag = document.createElement("annotation")
1036
ann_tag.setAttribute("name", annotation)
1037
ann_tag.setAttribute("value", value)
1038
if_tag.appendChild(ann_tag)
1039
689
# Add the names to the return values for the
1040
690
# "org.freedesktop.DBus.Properties" methods
1041
691
if (if_tag.getAttribute("name")
1054
704
xmlstring = document.toxml("utf-8")
1055
705
document.unlink()
1056
706
except (AttributeError, xml.dom.DOMException,
1057
xml.parsers.expat.ExpatError) as error:
707
xml.parsers.expat.ExpatError), error:
1058
708
logger.error("Failed to override Introspection method",
1059
exc_info=error)
709
error)
1060
710
return xmlstring
1061
711
1062
712
1063
def datetime_to_dbus(dt, variant_level=0):
1064
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1065
if dt is None:
1066
return dbus.String("", variant_level = variant_level)
1067
return dbus.String(dt.isoformat(), variant_level=variant_level)
1068
1069
1070
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1071
"""A class decorator; applied to a subclass of
1072
dbus.service.Object, it will add alternate D-Bus attributes with
1073
interface names according to the "alt_interface_names" mapping.
1074
Usage:
1075
1076
@alternate_dbus_interfaces({"org.example.Interface":
1077
"net.example.AlternateInterface"})
1078
class SampleDBusObject(dbus.service.Object):
1079
@dbus.service.method("org.example.Interface")
1080
def SampleDBusMethod():
1081
pass
1082
1083
The above "SampleDBusMethod" on "SampleDBusObject" will be
1084
reachable via two interfaces: "org.example.Interface" and
1085
"net.example.AlternateInterface", the latter of which will have
1086
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1087
"true", unless "deprecate" is passed with a False value.
1088
1089
This works for methods and signals, and also for D-Bus properties
1090
(from DBusObjectWithProperties) and interfaces (from the
1091
dbus_interface_annotations decorator).
1092
"""
1093
1094
def wrapper(cls):
1095
for orig_interface_name, alt_interface_name in (
1096
alt_interface_names.items()):
1097
attr = {}
1098
interface_names = set()
1099
# Go though all attributes of the class
1100
for attrname, attribute in inspect.getmembers(cls):
1101
# Ignore non-D-Bus attributes, and D-Bus attributes
1102
# with the wrong interface name
1103
if (not hasattr(attribute, "_dbus_interface")
1104
or not attribute._dbus_interface.startswith(
1105
orig_interface_name)):
1106
continue
1107
# Create an alternate D-Bus interface name based on
1108
# the current name
1109
alt_interface = attribute._dbus_interface.replace(
1110
orig_interface_name, alt_interface_name)
1111
interface_names.add(alt_interface)
1112
# Is this a D-Bus signal?
1113
if getattr(attribute, "_dbus_is_signal", False):
1114
if sys.version == 2:
1115
# Extract the original non-method undecorated
1116
# function by black magic
1117
nonmethod_func = (dict(
1118
zip(attribute.func_code.co_freevars,
1119
attribute.__closure__))
1120
["func"].cell_contents)
1121
else:
1122
nonmethod_func = attribute
1123
# Create a new, but exactly alike, function
1124
# object, and decorate it to be a new D-Bus signal
1125
# with the alternate D-Bus interface name
1126
if sys.version == 2:
1127
new_function = types.FunctionType(
1128
nonmethod_func.func_code,
1129
nonmethod_func.func_globals,
1130
nonmethod_func.func_name,
1131
nonmethod_func.func_defaults,
1132
nonmethod_func.func_closure)
1133
else:
1134
new_function = types.FunctionType(
1135
nonmethod_func.__code__,
1136
nonmethod_func.__globals__,
1137
nonmethod_func.__name__,
1138
nonmethod_func.__defaults__,
1139
nonmethod_func.__closure__)
1140
new_function = (dbus.service.signal(
1141
alt_interface,
1142
attribute._dbus_signature)(new_function))
1143
# Copy annotations, if any
1144
try:
1145
new_function._dbus_annotations = dict(
1146
attribute._dbus_annotations)
1147
except AttributeError:
1148
pass
1149
# Define a creator of a function to call both the
1150
# original and alternate functions, so both the
1151
# original and alternate signals gets sent when
1152
# the function is called
1153
def fixscope(func1, func2):
1154
"""This function is a scope container to pass
1155
func1 and func2 to the "call_both" function
1156
outside of its arguments"""
1157
1158
def call_both(*args, **kwargs):
1159
"""This function will emit two D-Bus
1160
signals by calling func1 and func2"""
1161
func1(*args, **kwargs)
1162
func2(*args, **kwargs)
1163
1164
return call_both
1165
# Create the "call_both" function and add it to
1166
# the class
1167
attr[attrname] = fixscope(attribute, new_function)
1168
# Is this a D-Bus method?
1169
elif getattr(attribute, "_dbus_is_method", False):
1170
# Create a new, but exactly alike, function
1171
# object. Decorate it to be a new D-Bus method
1172
# with the alternate D-Bus interface name. Add it
1173
# to the class.
1174
attr[attrname] = (
1175
dbus.service.method(
1176
alt_interface,
1177
attribute._dbus_in_signature,
1178
attribute._dbus_out_signature)
1179
(types.FunctionType(attribute.func_code,
1180
attribute.func_globals,
1181
attribute.func_name,
1182
attribute.func_defaults,
1183
attribute.func_closure)))
1184
# Copy annotations, if any
1185
try:
1186
attr[attrname]._dbus_annotations = dict(
1187
attribute._dbus_annotations)
1188
except AttributeError:
1189
pass
1190
# Is this a D-Bus property?
1191
elif getattr(attribute, "_dbus_is_property", False):
1192
# Create a new, but exactly alike, function
1193
# object, and decorate it to be a new D-Bus
1194
# property with the alternate D-Bus interface
1195
# name. Add it to the class.
1196
attr[attrname] = (dbus_service_property(
1197
alt_interface, attribute._dbus_signature,
1198
attribute._dbus_access,
1199
attribute._dbus_get_args_options
1200
["byte_arrays"])
1201
(types.FunctionType(
1202
attribute.func_code,
1203
attribute.func_globals,
1204
attribute.func_name,
1205
attribute.func_defaults,
1206
attribute.func_closure)))
1207
# Copy annotations, if any
1208
try:
1209
attr[attrname]._dbus_annotations = dict(
1210
attribute._dbus_annotations)
1211
except AttributeError:
1212
pass
1213
# Is this a D-Bus interface?
1214
elif getattr(attribute, "_dbus_is_interface", False):
1215
# Create a new, but exactly alike, function
1216
# object. Decorate it to be a new D-Bus interface
1217
# with the alternate D-Bus interface name. Add it
1218
# to the class.
1219
attr[attrname] = (
1220
dbus_interface_annotations(alt_interface)
1221
(types.FunctionType(attribute.func_code,
1222
attribute.func_globals,
1223
attribute.func_name,
1224
attribute.func_defaults,
1225
attribute.func_closure)))
1226
if deprecate:
1227
# Deprecate all alternate interfaces
1228
iname="_AlternateDBusNames_interface_annotation{}"
1229
for interface_name in interface_names:
1230
1231
@dbus_interface_annotations(interface_name)
1232
def func(self):
1233
return { "org.freedesktop.DBus.Deprecated":
1234
"true" }
1235
# Find an unused name
1236
for aname in (iname.format(i)
1237
for i in itertools.count()):
1238
if aname not in attr:
1239
attr[aname] = func
1240
break
1241
if interface_names:
1242
# Replace the class with a new subclass of it with
1243
# methods, signals, etc. as created above.
1244
cls = type(b"{}Alternate".format(cls.__name__),
1245
(cls, ), attr)
1246
return cls
1247
1248
return wrapper
1249
1250
1251
@alternate_dbus_interfaces({"se.recompile.Mandos":
1252
"se.bsnet.fukt.Mandos"})
1253
713
class ClientDBus(Client, DBusObjectWithProperties):
1254
714
"""A Client class using D-Bus
1255
715
1259
719
"""
1260
720
1261
721
runtime_expansions = (Client.runtime_expansions
1262
+ ("dbus_object_path", ))
1263
1264
_interface = "se.recompile.Mandos.Client"
722
+ ("dbus_object_path",))
1265
723
1266
724
# dbus.service.Object doesn't use super(), so we can't either.
1267
725
1268
726
def __init__(self, bus = None, *args, **kwargs):
727
self._approvals_pending = 0
1269
728
self.bus = bus
1270
729
Client.__init__(self, *args, **kwargs)
1271
730
# Only now, when this client is initialized, can it show up on
1272
731
# the D-Bus
1273
client_object_name = str(self.name).translate(
732
client_object_name = unicode(self.name).translate(
1274
733
{ord("."): ord("_"),
1275
734
ord("-"): ord("_")})
1276
self.dbus_object_path = dbus.ObjectPath(
1277
"/clients/" + client_object_name)
735
self.dbus_object_path = (dbus.ObjectPath
736
("/clients/" + client_object_name))
1278
737
DBusObjectWithProperties.__init__(self, self.bus,
1279
738
self.dbus_object_path)
1280
1281
def notifychangeproperty(transform_func, dbus_name,
1282
type_func=lambda x: x,
1283
variant_level=1,
1284
invalidate_only=False,
1285
_interface=_interface):
1286
""" Modify a variable so that it's a property which announces
1287
its changes to DBus.
1288
1289
transform_fun: Function that takes a value and a variant_level
1290
and transforms it to a D-Bus type.
1291
dbus_name: D-Bus name of the variable
1292
type_func: Function that transform the value before sending it
1293
to the D-Bus. Default: no transform
1294
variant_level: D-Bus variant level. Default: 1
1295
"""
1296
attrname = "_{}".format(dbus_name)
1297
1298
def setter(self, value):
1299
if hasattr(self, "dbus_object_path"):
1300
if (not hasattr(self, attrname) or
1301
type_func(getattr(self, attrname, None))
1302
!= type_func(value)):
1303
if invalidate_only:
1304
self.PropertiesChanged(
1305
_interface, dbus.Dictionary(),
1306
dbus.Array((dbus_name, )))
1307
else:
1308
dbus_value = transform_func(
1309
type_func(value),
1310
variant_level = variant_level)
1311
self.PropertyChanged(dbus.String(dbus_name),
1312
dbus_value)
1313
self.PropertiesChanged(
1314
_interface,
1315
dbus.Dictionary({ dbus.String(dbus_name):
1316
dbus_value }),
1317
dbus.Array())
1318
setattr(self, attrname, value)
1319
1320
return property(lambda self: getattr(self, attrname), setter)
1321
1322
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1323
approvals_pending = notifychangeproperty(dbus.Boolean,
1324
"ApprovalPending",
1325
type_func = bool)
1326
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1327
last_enabled = notifychangeproperty(datetime_to_dbus,
1328
"LastEnabled")
1329
checker = notifychangeproperty(
1330
dbus.Boolean, "CheckerRunning",
1331
type_func = lambda checker: checker is not None)
1332
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1333
"LastCheckedOK")
1334
last_checker_status = notifychangeproperty(dbus.Int16,
1335
"LastCheckerStatus")
1336
last_approval_request = notifychangeproperty(
1337
datetime_to_dbus, "LastApprovalRequest")
1338
approved_by_default = notifychangeproperty(dbus.Boolean,
1339
"ApprovedByDefault")
1340
approval_delay = notifychangeproperty(
1341
dbus.UInt64, "ApprovalDelay",
1342
type_func = lambda td: td.total_seconds() * 1000)
1343
approval_duration = notifychangeproperty(
1344
dbus.UInt64, "ApprovalDuration",
1345
type_func = lambda td: td.total_seconds() * 1000)
1346
host = notifychangeproperty(dbus.String, "Host")
1347
timeout = notifychangeproperty(
1348
dbus.UInt64, "Timeout",
1349
type_func = lambda td: td.total_seconds() * 1000)
1350
extended_timeout = notifychangeproperty(
1351
dbus.UInt64, "ExtendedTimeout",
1352
type_func = lambda td: td.total_seconds() * 1000)
1353
interval = notifychangeproperty(
1354
dbus.UInt64, "Interval",
1355
type_func = lambda td: td.total_seconds() * 1000)
1356
checker_command = notifychangeproperty(dbus.String, "Checker")
1357
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1358
invalidate_only=True)
1359
1360
del notifychangeproperty
739
740
def _get_approvals_pending(self):
741
return self._approvals_pending
742
def _set_approvals_pending(self, value):
743
old_value = self._approvals_pending
744
self._approvals_pending = value
745
bval = bool(value)
746
if (hasattr(self, "dbus_object_path")
747
and bval is not bool(old_value)):
748
dbus_bool = dbus.Boolean(bval, variant_level=1)
749
self.PropertyChanged(dbus.String("ApprovalPending"),
750
dbus_bool)
751
752
approvals_pending = property(_get_approvals_pending,
753
_set_approvals_pending)
754
del _get_approvals_pending, _set_approvals_pending
755
756
@staticmethod
757
def _datetime_to_dbus(dt, variant_level=0):
758
"""Convert a UTC datetime.datetime() to a D-Bus type."""
759
return dbus.String(dt.isoformat(),
760
variant_level=variant_level)
761
762
def enable(self):
763
oldstate = getattr(self, "enabled", False)
764
r = Client.enable(self)
765
if oldstate != self.enabled:
766
# Emit D-Bus signals
767
self.PropertyChanged(dbus.String("Enabled"),
768
dbus.Boolean(True, variant_level=1))
769
self.PropertyChanged(
770
dbus.String("LastEnabled"),
771
self._datetime_to_dbus(self.last_enabled,
772
variant_level=1))
773
return r
774
775
def disable(self, quiet = False):
776
oldstate = getattr(self, "enabled", False)
777
r = Client.disable(self, quiet=quiet)
778
if not quiet and oldstate != self.enabled:
779
# Emit D-Bus signal
780
self.PropertyChanged(dbus.String("Enabled"),
781
dbus.Boolean(False, variant_level=1))
782
return r
1361
783
1362
784
def __del__(self, *args, **kwargs):
1363
785
try:
1372
794
*args, **kwargs):
1373
795
self.checker_callback_tag = None
1374
796
self.checker = None
797
# Emit D-Bus signal
798
self.PropertyChanged(dbus.String("CheckerRunning"),
799
dbus.Boolean(False, variant_level=1))
1375
800
if os.WIFEXITED(condition):
1376
801
exitstatus = os.WEXITSTATUS(condition)
1377
802
# Emit D-Bus signal
1387
812
return Client.checker_callback(self, pid, condition, command,
1388
813
*args, **kwargs)
1389
814
815
def checked_ok(self, *args, **kwargs):
816
r = Client.checked_ok(self, *args, **kwargs)
817
# Emit D-Bus signal
818
self.PropertyChanged(
819
dbus.String("LastCheckedOK"),
820
(self._datetime_to_dbus(self.last_checked_ok,
821
variant_level=1)))
822
return r
823
824
def need_approval(self, *args, **kwargs):
825
r = Client.need_approval(self, *args, **kwargs)
826
# Emit D-Bus signal
827
self.PropertyChanged(
828
dbus.String("LastApprovalRequest"),
829
(self._datetime_to_dbus(self.last_approval_request,
830
variant_level=1)))
831
return r
832
1390
833
def start_checker(self, *args, **kwargs):
1391
old_checker_pid = getattr(self.checker, "pid", None)
834
old_checker = self.checker
835
if self.checker is not None:
836
old_checker_pid = self.checker.pid
837
else:
838
old_checker_pid = None
1392
839
r = Client.start_checker(self, *args, **kwargs)
1393
840
# Only if new checker process was started
1394
841
if (self.checker is not None
1395
842
and old_checker_pid != self.checker.pid):
1396
843
# Emit D-Bus signal
1397
844
self.CheckerStarted(self.current_checker_command)
845
self.PropertyChanged(
846
dbus.String("CheckerRunning"),
847
dbus.Boolean(True, variant_level=1))
1398
848
return r
1399
849
850
def stop_checker(self, *args, **kwargs):
851
old_checker = getattr(self, "checker", None)
852
r = Client.stop_checker(self, *args, **kwargs)
853
if (old_checker is not None
854
and getattr(self, "checker", None) is None):
855
self.PropertyChanged(dbus.String("CheckerRunning"),
856
dbus.Boolean(False, variant_level=1))
857
return r
858
1400
859
def _reset_approved(self):
1401
self.approved = None
860
self._approved = None
1402
861
return False
1403
862
1404
863
def approve(self, value=True):
1405
self.approved = value
1406
gobject.timeout_add(int(self.approval_duration.total_seconds()
1407
* 1000), self._reset_approved)
1408
864
self.send_changedstate()
865
self._approved = value
866
gobject.timeout_add(self._timedelta_to_milliseconds
867
(self.approval_duration),
868
self._reset_approved)
869
1409
870
1410
871
## D-Bus methods, signals & properties
1411
1412
## Interfaces
872
_interface = "se.bsnet.fukt.Mandos.Client"
1413
873
1414
874
## Signals
1415
875
1426
886
pass
1427
887
1428
888
# PropertyChanged - signal
1429
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1430
889
@dbus.service.signal(_interface, signature="sv")
1431
890
def PropertyChanged(self, property, value):
1432
891
"D-Bus signal"
1463
922
# CheckedOK - method
1464
923
@dbus.service.method(_interface)
1465
924
def CheckedOK(self):
1466
self.checked_ok()
925
return self.checked_ok()
1467
926
1468
927
# Enable - method
1469
928
@dbus.service.method(_interface)
1496
955
return dbus.Boolean(bool(self.approvals_pending))
1497
956
1498
957
# ApprovedByDefault - property
1499
@dbus_service_property(_interface,
1500
signature="b",
958
@dbus_service_property(_interface, signature="b",
1501
959
access="readwrite")
1502
960
def ApprovedByDefault_dbus_property(self, value=None):
1503
961
if value is None: # get
1504
962
return dbus.Boolean(self.approved_by_default)
1505
963
self.approved_by_default = bool(value)
964
# Emit D-Bus signal
965
self.PropertyChanged(dbus.String("ApprovedByDefault"),
966
dbus.Boolean(value, variant_level=1))
1506
967
1507
968
# ApprovalDelay - property
1508
@dbus_service_property(_interface,
1509
signature="t",
969
@dbus_service_property(_interface, signature="t",
1510
970
access="readwrite")
1511
971
def ApprovalDelay_dbus_property(self, value=None):
1512
972
if value is None: # get
1513
return dbus.UInt64(self.approval_delay.total_seconds()
1514
* 1000)
973
return dbus.UInt64(self.approval_delay_milliseconds())
1515
974
self.approval_delay = datetime.timedelta(0, 0, 0, value)
975
# Emit D-Bus signal
976
self.PropertyChanged(dbus.String("ApprovalDelay"),
977
dbus.UInt64(value, variant_level=1))
1516
978
1517
979
# ApprovalDuration - property
1518
@dbus_service_property(_interface,
1519
signature="t",
980
@dbus_service_property(_interface, signature="t",
1520
981
access="readwrite")
1521
982
def ApprovalDuration_dbus_property(self, value=None):
1522
983
if value is None: # get
1523
return dbus.UInt64(self.approval_duration.total_seconds()
1524
* 1000)
984
return dbus.UInt64(self._timedelta_to_milliseconds(
985
self.approval_duration))
1525
986
self.approval_duration = datetime.timedelta(0, 0, 0, value)
987
# Emit D-Bus signal
988
self.PropertyChanged(dbus.String("ApprovalDuration"),
989
dbus.UInt64(value, variant_level=1))
1526
990
1527
991
# Name - property
1528
992
@dbus_service_property(_interface, signature="s", access="read")
1535
999
return dbus.String(self.fingerprint)
1536
1000
1537
1001
# Host - property
1538
@dbus_service_property(_interface,
1539
signature="s",
1002
@dbus_service_property(_interface, signature="s",
1540
1003
access="readwrite")
1541
1004
def Host_dbus_property(self, value=None):
1542
1005
if value is None: # get
1543
1006
return dbus.String(self.host)
1544
self.host = str(value)
1007
self.host = value
1008
# Emit D-Bus signal
1009
self.PropertyChanged(dbus.String("Host"),
1010
dbus.String(value, variant_level=1))
1545
1011
1546
1012
# Created - property
1547
1013
@dbus_service_property(_interface, signature="s", access="read")
1548
1014
def Created_dbus_property(self):
1549
return datetime_to_dbus(self.created)
1015
return dbus.String(self._datetime_to_dbus(self.created))
1550
1016
1551
1017
# LastEnabled - property
1552
1018
@dbus_service_property(_interface, signature="s", access="read")
1553
1019
def LastEnabled_dbus_property(self):
1554
return datetime_to_dbus(self.last_enabled)
1020
if self.last_enabled is None:
1021
return dbus.String("")
1022
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1555
1023
1556
1024
# Enabled - property
1557
@dbus_service_property(_interface,
1558
signature="b",
1025
@dbus_service_property(_interface, signature="b",
1559
1026
access="readwrite")
1560
1027
def Enabled_dbus_property(self, value=None):
1561
1028
if value is None: # get
1566
1033
self.disable()
1567
1034
1568
1035
# LastCheckedOK - property
1569
@dbus_service_property(_interface,
1570
signature="s",
1036
@dbus_service_property(_interface, signature="s",
1571
1037
access="readwrite")
1572
1038
def LastCheckedOK_dbus_property(self, value=None):
1573
1039
if value is not None:
1574
1040
self.checked_ok()
1575
1041
return
1576
return datetime_to_dbus(self.last_checked_ok)
1577
1578
# LastCheckerStatus - property
1579
@dbus_service_property(_interface, signature="n", access="read")
1580
def LastCheckerStatus_dbus_property(self):
1581
return dbus.Int16(self.last_checker_status)
1582
1583
# Expires - property
1584
@dbus_service_property(_interface, signature="s", access="read")
1585
def Expires_dbus_property(self):
1586
return datetime_to_dbus(self.expires)
1042
if self.last_checked_ok is None:
1043
return dbus.String("")
1044
return dbus.String(self._datetime_to_dbus(self
1045
.last_checked_ok))
1587
1046
1588
1047
# LastApprovalRequest - property
1589
1048
@dbus_service_property(_interface, signature="s", access="read")
1590
1049
def LastApprovalRequest_dbus_property(self):
1591
return datetime_to_dbus(self.last_approval_request)
1050
if self.last_approval_request is None:
1051
return dbus.String("")
1052
return dbus.String(self.
1053
_datetime_to_dbus(self
1054
.last_approval_request))
1592
1055
1593
1056
# Timeout - property
1594
@dbus_service_property(_interface,
1595
signature="t",
1057
@dbus_service_property(_interface, signature="t",
1596
1058
access="readwrite")
1597
1059
def Timeout_dbus_property(self, value=None):
1598
1060
if value is None: # get
1599
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1600
old_timeout = self.timeout
1061
return dbus.UInt64(self.timeout_milliseconds())
1601
1062
self.timeout = datetime.timedelta(0, 0, 0, value)
1602
# Reschedule disabling
1603
if self.enabled:
1604
now = datetime.datetime.utcnow()
1605
self.expires += self.timeout - old_timeout
1606
if self.expires <= now:
1607
# The timeout has passed
1608
self.disable()
1609
else:
1610
if (getattr(self, "disable_initiator_tag", None)
1611
is None):
1612
return
1613
gobject.source_remove(self.disable_initiator_tag)
1614
self.disable_initiator_tag = gobject.timeout_add(
1615
int((self.expires - now).total_seconds() * 1000),
1616
self.disable)
1617
1618
# ExtendedTimeout - property
1619
@dbus_service_property(_interface,
1620
signature="t",
1621
access="readwrite")
1622
def ExtendedTimeout_dbus_property(self, value=None):
1623
if value is None: # get
1624
return dbus.UInt64(self.extended_timeout.total_seconds()
1625
* 1000)
1626
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1063
# Emit D-Bus signal
1064
self.PropertyChanged(dbus.String("Timeout"),
1065
dbus.UInt64(value, variant_level=1))
1066
if getattr(self, "disable_initiator_tag", None) is None:
1067
return
1068
# Reschedule timeout
1069
gobject.source_remove(self.disable_initiator_tag)
1070
self.disable_initiator_tag = None
1071
time_to_die = (self.
1072
_timedelta_to_milliseconds((self
1073
.last_checked_ok
1074
+ self.timeout)
1075
- datetime.datetime
1076
.utcnow()))
1077
if time_to_die <= 0:
1078
# The timeout has passed
1079
self.disable()
1080
else:
1081
self.disable_initiator_tag = (gobject.timeout_add
1082
(time_to_die, self.disable))
1627
1083
1628
1084
# Interval - property
1629
@dbus_service_property(_interface,
1630
signature="t",
1085
@dbus_service_property(_interface, signature="t",
1631
1086
access="readwrite")
1632
1087
def Interval_dbus_property(self, value=None):
1633
1088
if value is None: # get
1634
return dbus.UInt64(self.interval.total_seconds() * 1000)
1089
return dbus.UInt64(self.interval_milliseconds())
1635
1090
self.interval = datetime.timedelta(0, 0, 0, value)
1091
# Emit D-Bus signal
1092
self.PropertyChanged(dbus.String("Interval"),
1093
dbus.UInt64(value, variant_level=1))
1636
1094
if getattr(self, "checker_initiator_tag", None) is None:
1637
1095
return
1638
if self.enabled:
1639
# Reschedule checker run
1640
gobject.source_remove(self.checker_initiator_tag)
1641
self.checker_initiator_tag = gobject.timeout_add(
1642
value, self.start_checker)
1643
self.start_checker() # Start one now, too
1644
1096
# Reschedule checker run
1097
gobject.source_remove(self.checker_initiator_tag)
1098
self.checker_initiator_tag = (gobject.timeout_add
1099
(value, self.start_checker))
1100
self.start_checker() # Start one now, too
1101
1645
1102
# Checker - property
1646
@dbus_service_property(_interface,
1647
signature="s",
1103
@dbus_service_property(_interface, signature="s",
1648
1104
access="readwrite")
1649
1105
def Checker_dbus_property(self, value=None):
1650
1106
if value is None: # get
1651
1107
return dbus.String(self.checker_command)
1652
self.checker_command = str(value)
1108
self.checker_command = value
1109
# Emit D-Bus signal
1110
self.PropertyChanged(dbus.String("Checker"),
1111
dbus.String(self.checker_command,
1112
variant_level=1))
1653
1113
1654
1114
# CheckerRunning - property
1655
@dbus_service_property(_interface,
1656
signature="b",
1115
@dbus_service_property(_interface, signature="b",
1657
1116
access="readwrite")
1658
1117
def CheckerRunning_dbus_property(self, value=None):
1659
1118
if value is None: # get
1669
1128
return self.dbus_object_path # is already a dbus.ObjectPath
1670
1129
1671
1130
# Secret = property
1672
@dbus_service_property(_interface,
1673
signature="ay",
1674
access="write",
1675
byte_arrays=True)
1131
@dbus_service_property(_interface, signature="ay",
1132
access="write", byte_arrays=True)
1676
1133
def Secret_dbus_property(self, value):
1677
self.secret = bytes(value)
1134
self.secret = str(value)
1678
1135
1679
1136
del _interface
1680
1137
1684
1141
self._pipe = child_pipe
1685
1142
self._pipe.send(('init', fpr, address))
1686
1143
if not self._pipe.recv():
1687
raise KeyError(fpr)
1688
1144
raise KeyError()
1145
1689
1146
def __getattribute__(self, name):
1690
if name == '_pipe':
1147
if(name == '_pipe'):
1691
1148
return super(ProxyClient, self).__getattribute__(name)
1692
1149
self._pipe.send(('getattr', name))
1693
1150
data = self._pipe.recv()
1694
1151
if data[0] == 'data':
1695
1152
return data[1]
1696
1153
if data[0] == 'function':
1697
1698
1154
def func(*args, **kwargs):
1699
1155
self._pipe.send(('funcall', name, args, kwargs))
1700
1156
return self._pipe.recv()[1]
1701
1702
1157
return func
1703
1158
1704
1159
def __setattr__(self, name, value):
1705
if name == '_pipe':
1160
if(name == '_pipe'):
1706
1161
return super(ProxyClient, self).__setattr__(name, value)
1707
1162
self._pipe.send(('setattr', name, value))
1708
1163
1716
1171
def handle(self):
1717
1172
with contextlib.closing(self.server.child_pipe) as child_pipe:
1718
1173
logger.info("TCP connection from: %s",
1719
str(self.client_address))
1174
unicode(self.client_address))
1720
1175
logger.debug("Pipe FD: %d",
1721
1176
self.server.child_pipe.fileno())
1722
1723
session = gnutls.connection.ClientSession(
1724
self.request, gnutls.connection .X509Credentials())
1725
1177
1178
session = (gnutls.connection
1179
.ClientSession(self.request,
1180
gnutls.connection
1181
.X509Credentials()))
1182
1726
1183
# Note: gnutls.connection.X509Credentials is really a
1727
1184
# generic GnuTLS certificate credentials object so long as
1728
1185
# no X.509 keys are added to it. Therefore, we can use it
1729
1186
# here despite using OpenPGP certificates.
1730
1187
1731
1188
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1732
1189
# "+AES-256-CBC", "+SHA1",
1733
1190
# "+COMP-NULL", "+CTYPE-OPENPGP",
1736
1193
priority = self.server.gnutls_priority
1737
1194
if priority is None:
1738
1195
priority = "NORMAL"
1739
gnutls.library.functions.gnutls_priority_set_direct(
1740
session._c_object, priority, None)
1741
1196
(gnutls.library.functions
1197
.gnutls_priority_set_direct(session._c_object,
1198
priority, None))
1199
1742
1200
# Start communication using the Mandos protocol
1743
1201
# Get protocol number
1744
1202
line = self.request.makefile().readline()
1745
1203
logger.debug("Protocol version: %r", line)
1746
1204
try:
1747
1205
if int(line.strip().split()[0]) > 1:
1748
raise RuntimeError(line)
1749
except (ValueError, IndexError, RuntimeError) as error:
1206
raise RuntimeError
1207
except (ValueError, IndexError, RuntimeError), error:
1750
1208
logger.error("Unknown protocol version: %s", error)
1751
1209
return
1752
1210
1753
1211
# Start GnuTLS connection
1754
1212
try:
1755
1213
session.handshake()
1756
except gnutls.errors.GNUTLSError as error:
1214
except gnutls.errors.GNUTLSError, error:
1757
1215
logger.warning("Handshake failed: %s", error)
1758
1216
# Do not run session.bye() here: the session is not
1759
1217
# established. Just abandon the request.
1760
1218
return
1761
1219
logger.debug("Handshake succeeded")
1762
1220
1763
1221
approval_required = False
1764
1222
try:
1765
1223
try:
1766
fpr = self.fingerprint(
1767
self.peer_certificate(session))
1768
except (TypeError,
1769
gnutls.errors.GNUTLSError) as error:
1224
fpr = self.fingerprint(self.peer_certificate
1225
(session))
1226
except (TypeError, gnutls.errors.GNUTLSError), error:
1770
1227
logger.warning("Bad certificate: %s", error)
1771
1228
return
1772
1229
logger.debug("Fingerprint: %s", fpr)
1773
1230
1774
1231
try:
1775
1232
client = ProxyClient(child_pipe, fpr,
1776
1233
self.client_address)
1784
1241
1785
1242
while True:
1786
1243
if not client.enabled:
1787
logger.info("Client %s is disabled",
1788
client.name)
1244
logger.warning("Client %s is disabled",
1245
client.name)
1789
1246
if self.server.use_dbus:
1790
1247
# Emit D-Bus signal
1791
client.Rejected("Disabled")
1248
client.Rejected("Disabled")
1792
1249
return
1793
1250
1794
if client.approved or not client.approval_delay:
1251
if client._approved or not client.approval_delay:
1795
1252
#We are approved or approval is disabled
1796
1253
break
1797
elif client.approved is None:
1254
elif client._approved is None:
1798
1255
logger.info("Client %s needs approval",
1799
1256
client.name)
1800
1257
if self.server.use_dbus:
1801
1258
# Emit D-Bus signal
1802
1259
client.NeedApproval(
1803
client.approval_delay.total_seconds()
1804
* 1000, client.approved_by_default)
1260
client.approval_delay_milliseconds(),
1261
client.approved_by_default)
1805
1262
else:
1806
1263
logger.warning("Client %s was not approved",
1807
1264
client.name)
1811
1268
return
1812
1269
1813
1270
#wait until timeout or approved
1271
#x = float(client._timedelta_to_milliseconds(delay))
1814
1272
time = datetime.datetime.now()
1815
1273
client.changedstate.acquire()
1816
client.changedstate.wait(delay.total_seconds())
1274
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1817
1275
client.changedstate.release()
1818
1276
time2 = datetime.datetime.now()
1819
1277
if (time2 - time) >= delay:
1834
1292
while sent_size < len(client.secret):
1835
1293
try:
1836
1294
sent = session.send(client.secret[sent_size:])
1837
except gnutls.errors.GNUTLSError as error:
1838
logger.warning("gnutls send failed",
1839
exc_info=error)
1295
except (gnutls.errors.GNUTLSError), error:
1296
logger.warning("gnutls send failed")
1840
1297
return
1841
logger.debug("Sent: %d, remaining: %d", sent,
1842
len(client.secret) - (sent_size
1843
+ sent))
1298
logger.debug("Sent: %d, remaining: %d",
1299
sent, len(client.secret)
1300
- (sent_size + sent))
1844
1301
sent_size += sent
1845
1302
1846
1303
logger.info("Sending secret to %s", client.name)
1847
# bump the timeout using extended_timeout
1848
client.bump_timeout(client.extended_timeout)
1304
# bump the timeout as if seen
1305
client.checked_ok()
1849
1306
if self.server.use_dbus:
1850
1307
# Emit D-Bus signal
1851
1308
client.GotSecret()
1855
1312
client.approvals_pending -= 1
1856
1313
try:
1857
1314
session.bye()
1858
except gnutls.errors.GNUTLSError as error:
1859
logger.warning("GnuTLS bye failed",
1860
exc_info=error)
1315
except (gnutls.errors.GNUTLSError), error:
1316
logger.warning("GnuTLS bye failed")
1861
1317
1862
1318
@staticmethod
1863
1319
def peer_certificate(session):
1864
1320
"Return the peer's OpenPGP certificate as a bytestring"
1865
1321
# If not an OpenPGP certificate...
1866
if (gnutls.library.functions.gnutls_certificate_type_get(
1867
session._c_object)
1322
if (gnutls.library.functions
1323
.gnutls_certificate_type_get(session._c_object)
1868
1324
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1869
1325
# ...do the normal thing
1870
1326
return session.peer_certificate
1884
1340
def fingerprint(openpgp):
1885
1341
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1886
1342
# New GnuTLS "datum" with the OpenPGP public key
1887
datum = gnutls.library.types.gnutls_datum_t(
1888
ctypes.cast(ctypes.c_char_p(openpgp),
1889
ctypes.POINTER(ctypes.c_ubyte)),
1890
ctypes.c_uint(len(openpgp)))
1343
datum = (gnutls.library.types
1344
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1345
ctypes.POINTER
1346
(ctypes.c_ubyte)),
1347
ctypes.c_uint(len(openpgp))))
1891
1348
# New empty GnuTLS certificate
1892
1349
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1893
gnutls.library.functions.gnutls_openpgp_crt_init(
1894
ctypes.byref(crt))
1350
(gnutls.library.functions
1351
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1895
1352
# Import the OpenPGP public key into the certificate
1896
gnutls.library.functions.gnutls_openpgp_crt_import(
1897
crt, ctypes.byref(datum),
1898
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1353
(gnutls.library.functions
1354
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1355
gnutls.library.constants
1356
.GNUTLS_OPENPGP_FMT_RAW))
1899
1357
# Verify the self signature in the key
1900
1358
crtverify = ctypes.c_uint()
1901
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1902
crt, 0, ctypes.byref(crtverify))
1359
(gnutls.library.functions
1360
.gnutls_openpgp_crt_verify_self(crt, 0,
1361
ctypes.byref(crtverify)))
1903
1362
if crtverify.value != 0:
1904
1363
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1905
raise gnutls.errors.CertificateSecurityError(
1906
"Verify failed")
1364
raise (gnutls.errors.CertificateSecurityError
1365
("Verify failed"))
1907
1366
# New buffer for the fingerprint
1908
1367
buf = ctypes.create_string_buffer(20)
1909
1368
buf_len = ctypes.c_size_t()
1910
1369
# Get the fingerprint from the certificate into the buffer
1911
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1912
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1370
(gnutls.library.functions
1371
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1372
ctypes.byref(buf_len)))
1913
1373
# Deinit the certificate
1914
1374
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1915
1375
# Convert the buffer to a Python bytestring
1916
1376
fpr = ctypes.string_at(buf, buf_len.value)
1917
1377
# Convert the bytestring to hexadecimal notation
1918
hex_fpr = binascii.hexlify(fpr).upper()
1378
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1919
1379
return hex_fpr
1920
1380
1921
1381
1922
1382
class MultiprocessingMixIn(object):
1923
1383
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1924
1925
1384
def sub_process_main(self, request, address):
1926
1385
try:
1927
1386
self.finish_request(request, address)
1928
except Exception:
1387
except:
1929
1388
self.handle_error(request, address)
1930
1389
self.close_request(request)
1931
1390
1932
1391
def process_request(self, request, address):
1933
1392
"""Start a new process to process the request."""
1934
proc = multiprocessing.Process(target = self.sub_process_main,
1935
args = (request, address))
1936
proc.start()
1937
return proc
1938
1393
multiprocessing.Process(target = self.sub_process_main,
1394
args = (request, address)).start()
1939
1395
1940
1396
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1941
1397
""" adds a pipe to the MixIn """
1942
1943
1398
def process_request(self, request, client_address):
1944
1399
"""Overrides and wraps the original process_request().
1945
1400
1946
1401
This function creates a new pipe in self.pipe
1947
1402
"""
1948
1403
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1949
1950
proc = MultiprocessingMixIn.process_request(self, request,
1951
client_address)
1404
1405
super(MultiprocessingMixInWithPipe,
1406
self).process_request(request, client_address)
1952
1407
self.child_pipe.close()
1953
self.add_pipe(parent_pipe, proc)
1954
1955
def add_pipe(self, parent_pipe, proc):
1408
self.add_pipe(parent_pipe)
1409
1410
def add_pipe(self, parent_pipe):
1956
1411
"""Dummy function; override as necessary"""
1957
raise NotImplementedError()
1958
1412
raise NotImplementedError
1959
1413
1960
1414
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1961
1415
socketserver.TCPServer, object):
1966
1420
interface: None or a network interface name (string)
1967
1421
use_ipv6: Boolean; to use IPv6 or not
1968
1422
"""
1969
1970
1423
def __init__(self, server_address, RequestHandlerClass,
1971
interface=None,
1972
use_ipv6=True,
1973
socketfd=None):
1974
"""If socketfd is set, use that file descriptor instead of
1975
creating a new one with socket.socket().
1976
"""
1424
interface=None, use_ipv6=True):
1977
1425
self.interface = interface
1978
1426
if use_ipv6:
1979
1427
self.address_family = socket.AF_INET6
1980
if socketfd is not None:
1981
# Save the file descriptor
1982
self.socketfd = socketfd
1983
# Save the original socket.socket() function
1984
self.socket_socket = socket.socket
1985
# To implement --socket, we monkey patch socket.socket.
1986
#
1987
# (When socketserver.TCPServer is a new-style class, we
1988
# could make self.socket into a property instead of monkey
1989
# patching socket.socket.)
1990
#
1991
# Create a one-time-only replacement for socket.socket()
1992
@functools.wraps(socket.socket)
1993
def socket_wrapper(*args, **kwargs):
1994
# Restore original function so subsequent calls are
1995
# not affected.
1996
socket.socket = self.socket_socket
1997
del self.socket_socket
1998
# This time only, return a new socket object from the
1999
# saved file descriptor.
2000
return socket.fromfd(self.socketfd, *args, **kwargs)
2001
# Replace socket.socket() function with wrapper
2002
socket.socket = socket_wrapper
2003
# The socketserver.TCPServer.__init__ will call
2004
# socket.socket(), which might be our replacement,
2005
# socket_wrapper(), if socketfd was set.
2006
1428
socketserver.TCPServer.__init__(self, server_address,
2007
1429
RequestHandlerClass)
2008
2009
1430
def server_bind(self):
2010
1431
"""This overrides the normal server_bind() function
2011
1432
to bind to an interface if one was specified, and also NOT to
2017
1438
self.interface)
2018
1439
else:
2019
1440
try:
2020
self.socket.setsockopt(
2021
socket.SOL_SOCKET, SO_BINDTODEVICE,
2022
(self.interface + "\0").encode("utf-8"))
2023
except socket.error as error:
2024
if error.errno == errno.EPERM:
2025
logger.error("No permission to bind to"
2026
" interface %s", self.interface)
2027
elif error.errno == errno.ENOPROTOOPT:
1441
self.socket.setsockopt(socket.SOL_SOCKET,
1442
SO_BINDTODEVICE,
1443
str(self.interface
1444
+ '\0'))
1445
except socket.error, error:
1446
if error[0] == errno.EPERM:
1447
logger.error("No permission to"
1448
" bind to interface %s",
1449
self.interface)
1450
elif error[0] == errno.ENOPROTOOPT:
2028
1451
logger.error("SO_BINDTODEVICE not available;"
2029
1452
" cannot bind to interface %s",
2030
1453
self.interface)
2031
elif error.errno == errno.ENODEV:
2032
logger.error("Interface %s does not exist,"
2033
" cannot bind", self.interface)
2034
1454
else:
2035
1455
raise
2036
1456
# Only bind(2) the socket if we really need to.
2039
1459
if self.address_family == socket.AF_INET6:
2040
1460
any_address = "::" # in6addr_any
2041
1461
else:
2042
any_address = "0.0.0.0" # INADDR_ANY
1462
any_address = socket.INADDR_ANY
2043
1463
self.server_address = (any_address,
2044
1464
self.server_address[1])
2045
1465
elif not self.server_address[1]:
2046
self.server_address = (self.server_address[0], 0)
1466
self.server_address = (self.server_address[0],
1467
0)
2047
1468
# if self.interface:
2048
1469
# self.server_address = (self.server_address[0],
2049
1470
# 0, # port
2063
1484
2064
1485
Assumes a gobject.MainLoop event loop.
2065
1486
"""
2066
2067
1487
def __init__(self, server_address, RequestHandlerClass,
2068
interface=None,
2069
use_ipv6=True,
2070
clients=None,
2071
gnutls_priority=None,
2072
use_dbus=True,
2073
socketfd=None):
1488
interface=None, use_ipv6=True, clients=None,
1489
gnutls_priority=None, use_dbus=True):
2074
1490
self.enabled = False
2075
1491
self.clients = clients
2076
1492
if self.clients is None:
2077
self.clients = {}
1493
self.clients = set()
2078
1494
self.use_dbus = use_dbus
2079
1495
self.gnutls_priority = gnutls_priority
2080
1496
IPv6_TCPServer.__init__(self, server_address,
2081
1497
RequestHandlerClass,
2082
1498
interface = interface,
2083
use_ipv6 = use_ipv6,
2084
socketfd = socketfd)
2085
1499
use_ipv6 = use_ipv6)
2086
1500
def server_activate(self):
2087
1501
if self.enabled:
2088
1502
return socketserver.TCPServer.server_activate(self)
2089
2090
1503
def enable(self):
2091
1504
self.enabled = True
2092
2093
def add_pipe(self, parent_pipe, proc):
1505
def add_pipe(self, parent_pipe):
2094
1506
# Call "handle_ipc" for both data and EOF events
2095
gobject.io_add_watch(
2096
parent_pipe.fileno(),
2097
gobject.IO_IN | gobject.IO_HUP,
2098
functools.partial(self.handle_ipc,
2099
parent_pipe = parent_pipe,
2100
proc = proc))
2101
2102
def handle_ipc(self, source, condition,
2103
parent_pipe=None,
2104
proc = None,
1507
gobject.io_add_watch(parent_pipe.fileno(),
1508
gobject.IO_IN | gobject.IO_HUP,
1509
functools.partial(self.handle_ipc,
1510
parent_pipe = parent_pipe))
1511
1512
def handle_ipc(self, source, condition, parent_pipe=None,
2105
1513
client_object=None):
2106
# error, or the other end of multiprocessing.Pipe has closed
2107
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2108
# Wait for other process to exit
2109
proc.join()
1514
condition_names = {
1515
gobject.IO_IN: "IN", # There is data to read.
1516
gobject.IO_OUT: "OUT", # Data can be written (without
1517
# blocking).
1518
gobject.IO_PRI: "PRI", # There is urgent data to read.
1519
gobject.IO_ERR: "ERR", # Error condition.
1520
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1521
# broken, usually for pipes and
1522
# sockets).
1523
}
1524
conditions_string = ' | '.join(name
1525
for cond, name in
1526
condition_names.iteritems()
1527
if cond & condition)
1528
# error or the other end of multiprocessing.Pipe has closed
1529
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2110
1530
return False
2111
1531
2112
1532
# Read a request from the child
2117
1537
fpr = request[1]
2118
1538
address = request[2]
2119
1539
2120
for c in self.clients.itervalues():
1540
for c in self.clients:
2121
1541
if c.fingerprint == fpr:
2122
1542
client = c
2123
1543
break
2124
1544
else:
2125
logger.info("Client not found for fingerprint: %s, ad"
2126
"dress: %s", fpr, address)
1545
logger.warning("Client not found for fingerprint: %s, ad"
1546
"dress: %s", fpr, address)
2127
1547
if self.use_dbus:
2128
1548
# Emit D-Bus signal
2129
mandos_dbus_service.ClientNotFound(fpr,
2130
address[0])
1549
mandos_dbus_service.ClientNotFound(fpr, address[0])
2131
1550
parent_pipe.send(False)
2132
1551
return False
2133
1552
2134
gobject.io_add_watch(
2135
parent_pipe.fileno(),
2136
gobject.IO_IN | gobject.IO_HUP,
2137
functools.partial(self.handle_ipc,
2138
parent_pipe = parent_pipe,
2139
proc = proc,
2140
client_object = client))
1553
gobject.io_add_watch(parent_pipe.fileno(),
1554
gobject.IO_IN | gobject.IO_HUP,
1555
functools.partial(self.handle_ipc,
1556
parent_pipe = parent_pipe,
1557
client_object = client))
2141
1558
parent_pipe.send(True)
2142
# remove the old hook in favor of the new above hook on
2143
# same fileno
1559
# remove the old hook in favor of the new above hook on same fileno
2144
1560
return False
2145
1561
if command == 'funcall':
2146
1562
funcname = request[1]
2147
1563
args = request[2]
2148
1564
kwargs = request[3]
2149
1565
2150
parent_pipe.send(('data', getattr(client_object,
2151
funcname)(*args,
2152
**kwargs)))
2153
1566
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1567
2154
1568
if command == 'getattr':
2155
1569
attrname = request[1]
2156
1570
if callable(client_object.__getattribute__(attrname)):
2157
parent_pipe.send(('function', ))
1571
parent_pipe.send(('function',))
2158
1572
else:
2159
parent_pipe.send((
2160
'data', client_object.__getattribute__(attrname)))
1573
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2161
1574
2162
1575
if command == 'setattr':
2163
1576
attrname = request[1]
2164
1577
value = request[2]
2165
1578
setattr(client_object, attrname, value)
2166
1579
2167
1580
return True
2168
1581
2169
1582
2170
def rfc3339_duration_to_delta(duration):
2171
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2172
2173
>>> rfc3339_duration_to_delta("P7D")
2174
datetime.timedelta(7)
2175
>>> rfc3339_duration_to_delta("PT60S")
2176
datetime.timedelta(0, 60)
2177
>>> rfc3339_duration_to_delta("PT60M")
2178
datetime.timedelta(0, 3600)
2179
>>> rfc3339_duration_to_delta("PT24H")
2180
datetime.timedelta(1)
2181
>>> rfc3339_duration_to_delta("P1W")
2182
datetime.timedelta(7)
2183
>>> rfc3339_duration_to_delta("PT5M30S")
2184
datetime.timedelta(0, 330)
2185
>>> rfc3339_duration_to_delta("P1DT3M20S")
2186
datetime.timedelta(1, 200)
2187
"""
2188
2189
# Parsing an RFC 3339 duration with regular expressions is not
2190
# possible - there would have to be multiple places for the same
2191
# values, like seconds. The current code, while more esoteric, is
2192
# cleaner without depending on a parsing library. If Python had a
2193
# built-in library for parsing we would use it, but we'd like to
2194
# avoid excessive use of external libraries.
2195
2196
# New type for defining tokens, syntax, and semantics all-in-one
2197
Token = collections.namedtuple("Token", (
2198
"regexp", # To match token; if "value" is not None, must have
2199
# a "group" containing digits
2200
"value", # datetime.timedelta or None
2201
"followers")) # Tokens valid after this token
2202
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2203
# the "duration" ABNF definition in RFC 3339, Appendix A.
2204
token_end = Token(re.compile(r"$"), None, frozenset())
2205
token_second = Token(re.compile(r"(\d+)S"),
2206
datetime.timedelta(seconds=1),
2207
frozenset((token_end, )))
2208
token_minute = Token(re.compile(r"(\d+)M"),
2209
datetime.timedelta(minutes=1),
2210
frozenset((token_second, token_end)))
2211
token_hour = Token(re.compile(r"(\d+)H"),
2212
datetime.timedelta(hours=1),
2213
frozenset((token_minute, token_end)))
2214
token_time = Token(re.compile(r"T"),
2215
None,
2216
frozenset((token_hour, token_minute,
2217
token_second)))
2218
token_day = Token(re.compile(r"(\d+)D"),
2219
datetime.timedelta(days=1),
2220
frozenset((token_time, token_end)))
2221
token_month = Token(re.compile(r"(\d+)M"),
2222
datetime.timedelta(weeks=4),
2223
frozenset((token_day, token_end)))
2224
token_year = Token(re.compile(r"(\d+)Y"),
2225
datetime.timedelta(weeks=52),
2226
frozenset((token_month, token_end)))
2227
token_week = Token(re.compile(r"(\d+)W"),
2228
datetime.timedelta(weeks=1),
2229
frozenset((token_end, )))
2230
token_duration = Token(re.compile(r"P"), None,
2231
frozenset((token_year, token_month,
2232
token_day, token_time,
2233
token_week)))
2234
# Define starting values
2235
value = datetime.timedelta() # Value so far
2236
found_token = None
2237
followers = frozenset((token_duration, )) # Following valid tokens
2238
s = duration # String left to parse
2239
# Loop until end token is found
2240
while found_token is not token_end:
2241
# Search for any currently valid tokens
2242
for token in followers:
2243
match = token.regexp.match(s)
2244
if match is not None:
2245
# Token found
2246
if token.value is not None:
2247
# Value found, parse digits
2248
factor = int(match.group(1), 10)
2249
# Add to value so far
2250
value += factor * token.value
2251
# Strip token from string
2252
s = token.regexp.sub("", s, 1)
2253
# Go to found token
2254
found_token = token
2255
# Set valid next tokens
2256
followers = found_token.followers
2257
break
2258
else:
2259
# No currently valid tokens were found
2260
raise ValueError("Invalid RFC 3339 duration: {!r}"
2261
.format(duration))
2262
# End token found
2263
return value
2264
2265
2266
1583
def string_to_delta(interval):
2267
1584
"""Parse a string and return a datetime.timedelta
2268
1585
2279
1596
>>> string_to_delta('5m 30s')
2280
1597
datetime.timedelta(0, 330)
2281
1598
"""
2282
2283
try:
2284
return rfc3339_duration_to_delta(interval)
2285
except ValueError:
2286
pass
2287
2288
1599
timevalue = datetime.timedelta(0)
2289
1600
for s in interval.split():
2290
1601
try:
2291
suffix = s[-1]
1602
suffix = unicode(s[-1])
2292
1603
value = int(s[:-1])
2293
1604
if suffix == "d":
2294
1605
delta = datetime.timedelta(value)
2301
1612
elif suffix == "w":
2302
1613
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2303
1614
else:
2304
raise ValueError("Unknown suffix {!r}".format(suffix))
2305
except IndexError as e:
1615
raise ValueError("Unknown suffix %r" % suffix)
1616
except (ValueError, IndexError), e:
2306
1617
raise ValueError(*(e.args))
2307
1618
timevalue += delta
2308
1619
return timevalue
2309
1620
2310
1621
1622
def if_nametoindex(interface):
1623
"""Call the C function if_nametoindex(), or equivalent
1624
1625
Note: This function cannot accept a unicode string."""
1626
global if_nametoindex
1627
try:
1628
if_nametoindex = (ctypes.cdll.LoadLibrary
1629
(ctypes.util.find_library("c"))
1630
.if_nametoindex)
1631
except (OSError, AttributeError):
1632
logger.warning("Doing if_nametoindex the hard way")
1633
def if_nametoindex(interface):
1634
"Get an interface index the hard way, i.e. using fcntl()"
1635
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1636
with contextlib.closing(socket.socket()) as s:
1637
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1638
struct.pack(str("16s16x"),
1639
interface))
1640
interface_index = struct.unpack(str("I"),
1641
ifreq[16:20])[0]
1642
return interface_index
1643
return if_nametoindex(interface)
1644
1645
2311
1646
def daemon(nochdir = False, noclose = False):
2312
1647
"""See daemon(3). Standard BSD Unix function.
2313
1648
2321
1656
sys.exit()
2322
1657
if not noclose:
2323
1658
# Close all standard open file descriptors
2324
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1659
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2325
1660
if not stat.S_ISCHR(os.fstat(null).st_mode):
2326
1661
raise OSError(errno.ENODEV,
2327
"{} not a character device"
2328
.format(os.devnull))
1662
"%s not a character device"
1663
% os.path.devnull)
2329
1664
os.dup2(null, sys.stdin.fileno())
2330
1665
os.dup2(null, sys.stdout.fileno())
2331
1666
os.dup2(null, sys.stderr.fileno())
2338
1673
##################################################################
2339
1674
# Parsing of options, both command line and config file
2340
1675
2341
parser = argparse.ArgumentParser()
2342
parser.add_argument("-v", "--version", action="version",
2343
version = "%(prog)s {}".format(version),
2344
help="show version number and exit")
2345
parser.add_argument("-i", "--interface", metavar="IF",
2346
help="Bind to interface IF")
2347
parser.add_argument("-a", "--address",
2348
help="Address to listen for requests on")
2349
parser.add_argument("-p", "--port", type=int,
2350
help="Port number to receive requests on")
2351
parser.add_argument("--check", action="store_true",
2352
help="Run self-test")
2353
parser.add_argument("--debug", action="store_true",
2354
help="Debug mode; run in foreground and log"
2355
" to terminal", default=None)
2356
parser.add_argument("--debuglevel", metavar="LEVEL",
2357
help="Debug level for stdout output")
2358
parser.add_argument("--priority", help="GnuTLS"
2359
" priority string (see GnuTLS documentation)")
2360
parser.add_argument("--servicename",
2361
metavar="NAME", help="Zeroconf service name")
2362
parser.add_argument("--configdir",
2363
default="/etc/mandos", metavar="DIR",
2364
help="Directory to search for configuration"
2365
" files")
2366
parser.add_argument("--no-dbus", action="store_false",
2367
dest="use_dbus", help="Do not provide D-Bus"
2368
" system bus interface", default=None)
2369
parser.add_argument("--no-ipv6", action="store_false",
2370
dest="use_ipv6", help="Do not use IPv6",
2371
default=None)
2372
parser.add_argument("--no-restore", action="store_false",
2373
dest="restore", help="Do not restore stored"
2374
" state", default=None)
2375
parser.add_argument("--socket", type=int,
2376
help="Specify a file descriptor to a network"
2377
" socket to use instead of creating one")
2378
parser.add_argument("--statedir", metavar="DIR",
2379
help="Directory to save/restore state in")
2380
parser.add_argument("--foreground", action="store_true",
2381
help="Run in foreground", default=None)
2382
parser.add_argument("--no-zeroconf", action="store_false",
2383
dest="zeroconf", help="Do not use Zeroconf",
2384
default=None)
2385
2386
options = parser.parse_args()
1676
parser = optparse.OptionParser(version = "%%prog %s" % version)
1677
parser.add_option("-i", "--interface", type="string",
1678
metavar="IF", help="Bind to interface IF")
1679
parser.add_option("-a", "--address", type="string",
1680
help="Address to listen for requests on")
1681
parser.add_option("-p", "--port", type="int",
1682
help="Port number to receive requests on")
1683
parser.add_option("--check", action="store_true",
1684
help="Run self-test")
1685
parser.add_option("--debug", action="store_true",
1686
help="Debug mode; run in foreground and log to"
1687
" terminal")
1688
parser.add_option("--debuglevel", type="string", metavar="LEVEL",
1689
help="Debug level for stdout output")
1690
parser.add_option("--priority", type="string", help="GnuTLS"
1691
" priority string (see GnuTLS documentation)")
1692
parser.add_option("--servicename", type="string",
1693
metavar="NAME", help="Zeroconf service name")
1694
parser.add_option("--configdir", type="string",
1695
default="/etc/mandos", metavar="DIR",
1696
help="Directory to search for configuration"
1697
" files")
1698
parser.add_option("--no-dbus", action="store_false",
1699
dest="use_dbus", help="Do not provide D-Bus"
1700
" system bus interface")
1701
parser.add_option("--no-ipv6", action="store_false",
1702
dest="use_ipv6", help="Do not use IPv6")
1703
options = parser.parse_args()[0]
2387
1704
2388
1705
if options.check:
2389
1706
import doctest
2390
fail_count, test_count = doctest.testmod()
2391
sys.exit(os.EX_OK if fail_count == 0 else 1)
1707
doctest.testmod()
1708
sys.exit()
2392
1709
2393
1710
# Default values for config file for server-global settings
2394
1711
server_defaults = { "interface": "",
2396
1713
"port": "",
2397
1714
"debug": "False",
2398
1715
"priority":
2399
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2400
":+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
1716
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2401
1717
"servicename": "Mandos",
2402
1718
"use_dbus": "True",
2403
1719
"use_ipv6": "True",
2404
1720
"debuglevel": "",
2405
"restore": "True",
2406
"socket": "",
2407
"statedir": "/var/lib/mandos",
2408
"foreground": "False",
2409
"zeroconf": "True",
2410
}
1721
}
2411
1722
2412
1723
# Parse config file for server-global settings
2413
1724
server_config = configparser.SafeConfigParser(server_defaults)
2414
1725
del server_defaults
2415
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1726
server_config.read(os.path.join(options.configdir,
1727
"mandos.conf"))
2416
1728
# Convert the SafeConfigParser object to a dict
2417
1729
server_settings = server_config.defaults()
2418
1730
# Use the appropriate methods on the non-string config options
2419
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
1731
for option in ("debug", "use_dbus", "use_ipv6"):
2420
1732
server_settings[option] = server_config.getboolean("DEFAULT",
2421
1733
option)
2422
1734
if server_settings["port"]:
2423
1735
server_settings["port"] = server_config.getint("DEFAULT",
2424
1736
"port")
2425
if server_settings["socket"]:
2426
server_settings["socket"] = server_config.getint("DEFAULT",
2427
"socket")
2428
# Later, stdin will, and stdout and stderr might, be dup'ed
2429
# over with an opened os.devnull. But we don't want this to
2430
# happen with a supplied network socket.
2431
if 0 <= server_settings["socket"] <= 2:
2432
server_settings["socket"] = os.dup(server_settings
2433
["socket"])
2434
1737
del server_config
2435
1738
2436
1739
# Override the settings from the config file with command line
2437
1740
# options, if set.
2438
1741
for option in ("interface", "address", "port", "debug",
2439
"priority", "servicename", "configdir", "use_dbus",
2440
"use_ipv6", "debuglevel", "restore", "statedir",
2441
"socket", "foreground", "zeroconf"):
1742
"priority", "servicename", "configdir",
1743
"use_dbus", "use_ipv6", "debuglevel"):
2442
1744
value = getattr(options, option)
2443
1745
if value is not None:
2444
1746
server_settings[option] = value
2445
1747
del options
2446
1748
# Force all strings to be unicode
2447
1749
for option in server_settings.keys():
2448
if isinstance(server_settings[option], bytes):
2449
server_settings[option] = (server_settings[option]
2450
.decode("utf-8"))
2451
# Force all boolean options to be boolean
2452
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2453
"foreground", "zeroconf"):
2454
server_settings[option] = bool(server_settings[option])
2455
# Debug implies foreground
2456
if server_settings["debug"]:
2457
server_settings["foreground"] = True
1750
if type(server_settings[option]) is str:
1751
server_settings[option] = unicode(server_settings[option])
2458
1752
# Now we have our good server settings in "server_settings"
2459
1753
2460
1754
##################################################################
2461
1755
2462
if (not server_settings["zeroconf"]
2463
and not (server_settings["port"]
2464
or server_settings["socket"] != "")):
2465
parser.error("Needs port or socket to work without Zeroconf")
2466
2467
1756
# For convenience
2468
1757
debug = server_settings["debug"]
2469
1758
debuglevel = server_settings["debuglevel"]
2470
1759
use_dbus = server_settings["use_dbus"]
2471
1760
use_ipv6 = server_settings["use_ipv6"]
2472
stored_state_path = os.path.join(server_settings["statedir"],
2473
stored_state_file)
2474
foreground = server_settings["foreground"]
2475
zeroconf = server_settings["zeroconf"]
2476
2477
if debug:
2478
initlogger(debug, logging.DEBUG)
2479
else:
2480
if not debuglevel:
2481
initlogger(debug)
2482
else:
2483
level = getattr(logging, debuglevel.upper())
2484
initlogger(debug, level)
2485
1761
2486
1762
if server_settings["servicename"] != "Mandos":
2487
syslogger.setFormatter(
2488
logging.Formatter('Mandos ({}) [%(process)d]:'
2489
' %(levelname)s: %(message)s'.format(
2490
server_settings["servicename"])))
1763
syslogger.setFormatter(logging.Formatter
1764
('Mandos (%s) [%%(process)d]:'
1765
' %%(levelname)s: %%(message)s'
1766
% server_settings["servicename"]))
2491
1767
2492
1768
# Parse config file with clients
2493
client_config = configparser.SafeConfigParser(Client
2494
.client_defaults)
1769
client_defaults = { "timeout": "1h",
1770
"interval": "5m",
1771
"checker": "fping -q -- %%(host)s",
1772
"host": "",
1773
"approval_delay": "0s",
1774
"approval_duration": "1s",
1775
}
1776
client_config = configparser.SafeConfigParser(client_defaults)
2495
1777
client_config.read(os.path.join(server_settings["configdir"],
2496
1778
"clients.conf"))
2497
1779
2498
1780
global mandos_dbus_service
2499
1781
mandos_dbus_service = None
2500
1782
2501
socketfd = None
2502
if server_settings["socket"] != "":
2503
socketfd = server_settings["socket"]
2504
tcp_server = MandosServer(
2505
(server_settings["address"], server_settings["port"]),
2506
ClientHandler,
2507
interface=(server_settings["interface"] or None),
2508
use_ipv6=use_ipv6,
2509
gnutls_priority=server_settings["priority"],
2510
use_dbus=use_dbus,
2511
socketfd=socketfd)
2512
if not foreground:
2513
pidfilename = "/run/mandos.pid"
2514
if not os.path.isdir("/run/."):
2515
pidfilename = "/var/run/mandos.pid"
2516
pidfile = None
1783
tcp_server = MandosServer((server_settings["address"],
1784
server_settings["port"]),
1785
ClientHandler,
1786
interface=(server_settings["interface"]
1787
or None),
1788
use_ipv6=use_ipv6,
1789
gnutls_priority=
1790
server_settings["priority"],
1791
use_dbus=use_dbus)
1792
if not debug:
1793
pidfilename = "/var/run/mandos.pid"
2517
1794
try:
2518
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2519
except IOError as e:
2520
logger.error("Could not open file %r", pidfilename,
2521
exc_info=e)
1795
pidfile = open(pidfilename, "w")
1796
except IOError:
1797
logger.error("Could not open file %r", pidfilename)
2522
1798
2523
for name in ("_mandos", "mandos", "nobody"):
1799
try:
1800
uid = pwd.getpwnam("_mandos").pw_uid
1801
gid = pwd.getpwnam("_mandos").pw_gid
1802
except KeyError:
2524
1803
try:
2525
uid = pwd.getpwnam(name).pw_uid
2526
gid = pwd.getpwnam(name).pw_gid
2527
break
1804
uid = pwd.getpwnam("mandos").pw_uid
1805
gid = pwd.getpwnam("mandos").pw_gid
2528
1806
except KeyError:
2529
continue
2530
else:
2531
uid = 65534
2532
gid = 65534
1807
try:
1808
uid = pwd.getpwnam("nobody").pw_uid
1809
gid = pwd.getpwnam("nobody").pw_gid
1810
except KeyError:
1811
uid = 65534
1812
gid = 65534
2533
1813
try:
2534
1814
os.setgid(gid)
2535
1815
os.setuid(uid)
2536
except OSError as error:
2537
if error.errno != errno.EPERM:
2538
raise
1816
except OSError, error:
1817
if error[0] != errno.EPERM:
1818
raise error
2539
1819
1820
if not debug and not debuglevel:
1821
syslogger.setLevel(logging.WARNING)
1822
console.setLevel(logging.WARNING)
1823
if debuglevel:
1824
level = getattr(logging, debuglevel.upper())
1825
syslogger.setLevel(level)
1826
console.setLevel(level)
1827
2540
1828
if debug:
2541
1829
# Enable all possible GnuTLS debugging
2542
1830
2548
1836
def debug_gnutls(level, string):
2549
1837
logger.debug("GnuTLS: %s", string[:-1])
2550
1838
2551
gnutls.library.functions.gnutls_global_set_log_function(
2552
debug_gnutls)
1839
(gnutls.library.functions
1840
.gnutls_global_set_log_function(debug_gnutls))
2553
1841
2554
1842
# Redirect stdin so all checkers get /dev/null
2555
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1843
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2556
1844
os.dup2(null, sys.stdin.fileno())
2557
1845
if null > 2:
2558
1846
os.close(null)
1847
else:
1848
# No console logging
1849
logger.removeHandler(console)
2559
1850
2560
1851
# Need to fork before connecting to D-Bus
2561
if not foreground:
1852
if not debug:
2562
1853
# Close all input and output, do double fork, etc.
2563
1854
daemon()
2564
1855
2565
# multiprocessing will use threads, so before we use gobject we
2566
# need to inform gobject that threads will be used.
2567
gobject.threads_init()
2568
2569
1856
global main_loop
2570
1857
# From the Avahi example code
2571
DBusGMainLoop(set_as_default=True)
1858
DBusGMainLoop(set_as_default=True )
2572
1859
main_loop = gobject.MainLoop()
2573
1860
bus = dbus.SystemBus()
2574
1861
# End of Avahi example code
2575
1862
if use_dbus:
2576
1863
try:
2577
bus_name = dbus.service.BusName("se.recompile.Mandos",
2578
bus,
2579
do_not_queue=True)
2580
old_bus_name = dbus.service.BusName(
2581
"se.bsnet.fukt.Mandos", bus,
2582
do_not_queue=True)
2583
except dbus.exceptions.DBusException as e:
2584
logger.error("Disabling D-Bus:", exc_info=e)
1864
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1865
bus, do_not_queue=True)
1866
except dbus.exceptions.NameExistsException, e:
1867
logger.error(unicode(e) + ", disabling D-Bus")
2585
1868
use_dbus = False
2586
1869
server_settings["use_dbus"] = False
2587
1870
tcp_server.use_dbus = False
2588
if zeroconf:
2589
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2590
service = AvahiServiceToSyslog(
2591
name = server_settings["servicename"],
2592
servicetype = "_mandos._tcp",
2593
protocol = protocol,
2594
bus = bus)
2595
if server_settings["interface"]:
2596
service.interface = if_nametoindex(
2597
server_settings["interface"].encode("utf-8"))
1871
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1872
service = AvahiService(name = server_settings["servicename"],
1873
servicetype = "_mandos._tcp",
1874
protocol = protocol, bus = bus)
1875
if server_settings["interface"]:
1876
service.interface = (if_nametoindex
1877
(str(server_settings["interface"])))
2598
1878
2599
1879
global multiprocessing_manager
2600
1880
multiprocessing_manager = multiprocessing.Manager()
2602
1882
client_class = Client
2603
1883
if use_dbus:
2604
1884
client_class = functools.partial(ClientDBus, bus = bus)
2605
2606
client_settings = Client.config_parser(client_config)
2607
old_client_settings = {}
2608
clients_data = {}
2609
2610
# This is used to redirect stdout and stderr for checker processes
2611
global wnull
2612
wnull = open(os.devnull, "w") # A writable /dev/null
2613
# Only used if server is running in foreground but not in debug
2614
# mode
2615
if debug or not foreground:
2616
wnull.close()
2617
2618
# Get client data and settings from last running state.
2619
if server_settings["restore"]:
2620
try:
2621
with open(stored_state_path, "rb") as stored_state:
2622
clients_data, old_client_settings = pickle.load(
2623
stored_state)
2624
os.remove(stored_state_path)
2625
except IOError as e:
2626
if e.errno == errno.ENOENT:
2627
logger.warning("Could not load persistent state:"
2628
" {}".format(os.strerror(e.errno)))
2629
else:
2630
logger.critical("Could not load persistent state:",
2631
exc_info=e)
2632
raise
2633
except EOFError as e:
2634
logger.warning("Could not load persistent state: "
2635
"EOFError:",
2636
exc_info=e)
2637
2638
with PGPEngine() as pgp:
2639
for client_name, client in clients_data.items():
2640
# Skip removed clients
2641
if client_name not in client_settings:
2642
continue
2643
2644
# Decide which value to use after restoring saved state.
2645
# We have three different values: Old config file,
2646
# new config file, and saved state.
2647
# New config value takes precedence if it differs from old
2648
# config value, otherwise use saved state.
2649
for name, value in client_settings[client_name].items():
2650
try:
2651
# For each value in new config, check if it
2652
# differs from the old config value (Except for
2653
# the "secret" attribute)
2654
if (name != "secret"
2655
and (value !=
2656
old_client_settings[client_name][name])):
2657
client[name] = value
2658
except KeyError:
2659
pass
2660
2661
# Clients who has passed its expire date can still be
2662
# enabled if its last checker was successful. Clients
2663
# whose checker succeeded before we stored its state is
2664
# assumed to have successfully run all checkers during
2665
# downtime.
2666
if client["enabled"]:
2667
if datetime.datetime.utcnow() >= client["expires"]:
2668
if not client["last_checked_ok"]:
2669
logger.warning(
2670
"disabling client {} - Client never "
2671
"performed a successful checker".format(
2672
client_name))
2673
client["enabled"] = False
2674
elif client["last_checker_status"] != 0:
2675
logger.warning(
2676
"disabling client {} - Client last"
2677
" checker failed with error code"
2678
" {}".format(
2679
client_name,
2680
client["last_checker_status"]))
2681
client["enabled"] = False
2682
else:
2683
client["expires"] = (
2684
datetime.datetime.utcnow()
2685
+ client["timeout"])
2686
logger.debug("Last checker succeeded,"
2687
" keeping {} enabled".format(
2688
client_name))
1885
def client_config_items(config, section):
1886
special_settings = {
1887
"approved_by_default":
1888
lambda: config.getboolean(section,
1889
"approved_by_default"),
1890
}
1891
for name, value in config.items(section):
2689
1892
try:
2690
client["secret"] = pgp.decrypt(
2691
client["encrypted_secret"],
2692
client_settings[client_name]["secret"])
2693
except PGPError:
2694
# If decryption fails, we use secret from new settings
2695
logger.debug("Failed to decrypt {} old secret".format(
2696
client_name))
2697
client["secret"] = (client_settings[client_name]
2698
["secret"])
2699
2700
# Add/remove clients based on new changes made to config
2701
for client_name in (set(old_client_settings)
2702
- set(client_settings)):
2703
del clients_data[client_name]
2704
for client_name in (set(client_settings)
2705
- set(old_client_settings)):
2706
clients_data[client_name] = client_settings[client_name]
2707
2708
# Create all client objects
2709
for client_name, client in clients_data.items():
2710
tcp_server.clients[client_name] = client_class(
2711
name = client_name,
2712
settings = client,
2713
server_settings = server_settings)
2714
1893
yield (name, special_settings[name]())
1894
except KeyError:
1895
yield (name, value)
1896
1897
tcp_server.clients.update(set(
1898
client_class(name = section,
1899
config= dict(client_config_items(
1900
client_config, section)))
1901
for section in client_config.sections()))
2715
1902
if not tcp_server.clients:
2716
1903
logger.warning("No clients defined")
2717
2718
if not foreground:
2719
if pidfile is not None:
2720
pid = os.getpid()
2721
try:
2722
with pidfile:
2723
print(pid, file=pidfile)
2724
except IOError:
2725
logger.error("Could not write to file %r with PID %d",
2726
pidfilename, pid)
2727
del pidfile
1904
1905
if not debug:
1906
try:
1907
with pidfile:
1908
pid = os.getpid()
1909
pidfile.write(str(pid) + "\n".encode("utf-8"))
1910
del pidfile
1911
except IOError:
1912
logger.error("Could not write to file %r with PID %d",
1913
pidfilename, pid)
1914
except NameError:
1915
# "pidfile" was never created
1916
pass
2728
1917
del pidfilename
2729
1918
1919
signal.signal(signal.SIGINT, signal.SIG_IGN)
1920
2730
1921
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2731
1922
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2732
1923
2733
1924
if use_dbus:
2734
2735
@alternate_dbus_interfaces(
2736
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2737
class MandosDBusService(DBusObjectWithProperties):
1925
class MandosDBusService(dbus.service.Object):
2738
1926
"""A D-Bus proxy object"""
2739
2740
1927
def __init__(self):
2741
1928
dbus.service.Object.__init__(self, bus, "/")
2742
2743
_interface = "se.recompile.Mandos"
2744
2745
@dbus_interface_annotations(_interface)
2746
def _foo(self):
2747
return {
2748
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2749
"false" }
1929
_interface = "se.bsnet.fukt.Mandos"
2750
1930
2751
1931
@dbus.service.signal(_interface, signature="o")
2752
1932
def ClientAdded(self, objpath):
2766
1946
@dbus.service.method(_interface, out_signature="ao")
2767
1947
def GetAllClients(self):
2768
1948
"D-Bus method"
2769
return dbus.Array(c.dbus_object_path for c in
2770
tcp_server.clients.itervalues())
1949
return dbus.Array(c.dbus_object_path
1950
for c in tcp_server.clients)
2771
1951
2772
1952
@dbus.service.method(_interface,
2773
1953
out_signature="a{oa{sv}}")
2774
1954
def GetAllClientsWithProperties(self):
2775
1955
"D-Bus method"
2776
1956
return dbus.Dictionary(
2777
{ c.dbus_object_path: c.GetAll("")
2778
for c in tcp_server.clients.itervalues() },
1957
((c.dbus_object_path, c.GetAll(""))
1958
for c in tcp_server.clients),
2779
1959
signature="oa{sv}")
2780
1960
2781
1961
@dbus.service.method(_interface, in_signature="o")
2782
1962
def RemoveClient(self, object_path):
2783
1963
"D-Bus method"
2784
for c in tcp_server.clients.itervalues():
1964
for c in tcp_server.clients:
2785
1965
if c.dbus_object_path == object_path:
2786
del tcp_server.clients[c.name]
1966
tcp_server.clients.remove(c)
2787
1967
c.remove_from_connection()
2788
1968
# Don't signal anything except ClientRemoved
2789
1969
c.disable(quiet=True)
2798
1978
2799
1979
def cleanup():
2800
1980
"Cleanup function; run on exit"
2801
if zeroconf:
2802
service.cleanup()
2803
2804
multiprocessing.active_children()
2805
wnull.close()
2806
if not (tcp_server.clients or client_settings):
2807
return
2808
2809
# Store client before exiting. Secrets are encrypted with key
2810
# based on what config file has. If config file is
2811
# removed/edited, old secret will thus be unrecovable.
2812
clients = {}
2813
with PGPEngine() as pgp:
2814
for client in tcp_server.clients.itervalues():
2815
key = client_settings[client.name]["secret"]
2816
client.encrypted_secret = pgp.encrypt(client.secret,
2817
key)
2818
client_dict = {}
2819
2820
# A list of attributes that can not be pickled
2821
# + secret.
2822
exclude = { "bus", "changedstate", "secret",
2823
"checker", "server_settings" }
2824
for name, typ in inspect.getmembers(dbus.service
2825
.Object):
2826
exclude.add(name)
2827
2828
client_dict["encrypted_secret"] = (client
2829
.encrypted_secret)
2830
for attr in client.client_structure:
2831
if attr not in exclude:
2832
client_dict[attr] = getattr(client, attr)
2833
2834
clients[client.name] = client_dict
2835
del client_settings[client.name]["secret"]
2836
2837
try:
2838
with tempfile.NamedTemporaryFile(
2839
mode='wb',
2840
suffix=".pickle",
2841
prefix='clients-',
2842
dir=os.path.dirname(stored_state_path),
2843
delete=False) as stored_state:
2844
pickle.dump((clients, client_settings), stored_state)
2845
tempname = stored_state.name
2846
os.rename(tempname, stored_state_path)
2847
except (IOError, OSError) as e:
2848
if not debug:
2849
try:
2850
os.remove(tempname)
2851
except NameError:
2852
pass
2853
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2854
logger.warning("Could not save persistent state: {}"
2855
.format(os.strerror(e.errno)))
2856
else:
2857
logger.warning("Could not save persistent state:",
2858
exc_info=e)
2859
raise
2860
2861
# Delete all clients, and settings from config
1981
service.cleanup()
1982
2862
1983
while tcp_server.clients:
2863
name, client = tcp_server.clients.popitem()
1984
client = tcp_server.clients.pop()
2864
1985
if use_dbus:
2865
1986
client.remove_from_connection()
1987
client.disable_hook = None
2866
1988
# Don't signal anything except ClientRemoved
2867
1989
client.disable(quiet=True)
2868
1990
if use_dbus:
2869
1991
# Emit D-Bus signal
2870
mandos_dbus_service.ClientRemoved(
2871
client.dbus_object_path, client.name)
2872
client_settings.clear()
1992
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1993
client.name)
2873
1994
2874
1995
atexit.register(cleanup)
2875
1996
2876
for client in tcp_server.clients.itervalues():
1997
for client in tcp_server.clients:
2877
1998
if use_dbus:
2878
1999
# Emit D-Bus signal
2879
2000
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2880
# Need to initiate checking of clients
2881
if client.enabled:
2882
client.init_checker()
2001
client.enable()
2883
2002
2884
2003
tcp_server.enable()
2885
2004
tcp_server.server_activate()
2886
2005
2887
2006
# Find out what port we got
2888
if zeroconf:
2889
service.port = tcp_server.socket.getsockname()[1]
2007
service.port = tcp_server.socket.getsockname()[1]
2890
2008
if use_ipv6:
2891
2009
logger.info("Now listening on address %r, port %d,"
2892
" flowinfo %d, scope_id %d",
2893
*tcp_server.socket.getsockname())
2010
" flowinfo %d, scope_id %d"
2011
% tcp_server.socket.getsockname())
2894
2012
else: # IPv4
2895
logger.info("Now listening on address %r, port %d",
2896
*tcp_server.socket.getsockname())
2013
logger.info("Now listening on address %r, port %d"
2014
% tcp_server.socket.getsockname())
2897
2015
2898
2016
#service.interface = tcp_server.socket.getsockname()[3]
2899
2017
2900
2018
try:
2901
if zeroconf:
2902
# From the Avahi example code
2903
try:
2904
service.activate()
2905
except dbus.exceptions.DBusException as error:
2906
logger.critical("D-Bus Exception", exc_info=error)
2907
cleanup()
2908
sys.exit(1)
2909
# End of Avahi example code
2019
# From the Avahi example code
2020
try:
2021
service.activate()
2022
except dbus.exceptions.DBusException, error:
2023
logger.critical("DBusException: %s", error)
2024
cleanup()
2025
sys.exit(1)
2026
# End of Avahi example code
2910
2027
2911
2028
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2912
2029
lambda *args, **kwargs:
2915
2032
2916
2033
logger.debug("Starting main loop")
2917
2034
main_loop.run()
2918
except AvahiError as error:
2919
logger.critical("Avahi Error", exc_info=error)
2035
except AvahiError, error:
2036
logger.critical("AvahiError: %s", error)
2920
2037
cleanup()
2921
2038
sys.exit(1)
2922
2039
except KeyboardInterrupt:
2927
2044
# Must run before the D-Bus bus name gets deregistered
2928
2045
cleanup()
2929
2046
2930
2931
2047
if __name__ == '__main__':
2932
2048
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0