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- Committer: Teddy Hogeborn
- Date: 2010-10-13 06:12:52 UTC
- Revision ID: teddy@fukt.bsnet.se-20101013061252-3a918xedja5caya8
* debian/mandos-client.lintian-overrides: Added plugins.d/plymouth.
- files removed:
- debian/mandos-client.examples
- debian/upstream
- network-hooks.d
- plugin-helpers
- 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 © 2008-2010 Teddy Hogeborn
15
# Copyright © 2008-2010 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
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
37
from future_builtins import *
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
34
from __future__ import division, with_statement, absolute_import
35
36
import SocketServer as socketserver
43
37
import socket
44
import argparse
38
import optparse
45
39
import datetime
46
40
import errno
41
import gnutls.crypto
47
42
import gnutls.connection
48
43
import gnutls.errors
49
44
import gnutls.library.functions
50
45
import gnutls.library.constants
51
46
import gnutls.library.types
52
try:
53
import ConfigParser as configparser
54
except ImportError:
55
import configparser
47
import ConfigParser as configparser
56
48
import sys
57
49
import re
58
50
import os
67
59
import struct
68
60
import fcntl
69
61
import functools
70
try:
71
import cPickle as pickle
72
except ImportError:
73
import pickle
62
import cPickle as pickle
74
63
import multiprocessing
75
import types
76
import binascii
77
import tempfile
78
import itertools
79
import collections
80
import codecs
81
64
82
65
import dbus
83
66
import dbus.service
84
try:
85
import gobject
86
except ImportError:
87
from gi.repository import GObject as gobject
67
import gobject
88
68
import avahi
89
69
from dbus.mainloop.glib import DBusGMainLoop
90
70
import ctypes
100
80
except ImportError:
101
81
SO_BINDTODEVICE = None
102
82
103
if sys.version_info.major == 2:
104
str = unicode
105
106
version = "1.7.1"
107
stored_state_file = "clients.pickle"
108
109
logger = logging.getLogger()
110
syslogger = None
111
112
try:
113
if_nametoindex = ctypes.cdll.LoadLibrary(
114
ctypes.util.find_library("c")).if_nametoindex
115
except (OSError, AttributeError):
116
117
def if_nametoindex(interface):
118
"Get an interface index the hard way, i.e. using fcntl()"
119
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
120
with contextlib.closing(socket.socket()) as s:
121
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
122
struct.pack(b"16s16x", interface))
123
interface_index = struct.unpack("I", ifreq[16:20])[0]
124
return interface_index
125
126
127
def initlogger(debug, level=logging.WARNING):
128
"""init logger and add loglevel"""
129
130
global syslogger
131
syslogger = (logging.handlers.SysLogHandler(
132
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
133
address = "/dev/log"))
134
syslogger.setFormatter(logging.Formatter
135
('Mandos [%(process)d]: %(levelname)s:'
136
' %(message)s'))
137
logger.addHandler(syslogger)
138
139
if debug:
140
console = logging.StreamHandler()
141
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
142
' [%(process)d]:'
143
' %(levelname)s:'
144
' %(message)s'))
145
logger.addHandler(console)
146
logger.setLevel(level)
147
148
149
class PGPError(Exception):
150
"""Exception if encryption/decryption fails"""
151
pass
152
153
154
class PGPEngine(object):
155
"""A simple class for OpenPGP symmetric encryption & decryption"""
156
157
def __init__(self):
158
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
159
self.gnupgargs = ['--batch',
160
'--home', self.tempdir,
161
'--force-mdc',
162
'--quiet',
163
'--no-use-agent']
164
165
def __enter__(self):
166
return self
167
168
def __exit__(self, exc_type, exc_value, traceback):
169
self._cleanup()
170
return False
171
172
def __del__(self):
173
self._cleanup()
174
175
def _cleanup(self):
176
if self.tempdir is not None:
177
# Delete contents of tempdir
178
for root, dirs, files in os.walk(self.tempdir,
179
topdown = False):
180
for filename in files:
181
os.remove(os.path.join(root, filename))
182
for dirname in dirs:
183
os.rmdir(os.path.join(root, dirname))
184
# Remove tempdir
185
os.rmdir(self.tempdir)
186
self.tempdir = None
187
188
def password_encode(self, password):
189
# Passphrase can not be empty and can not contain newlines or
190
# NUL bytes. So we prefix it and hex encode it.
191
encoded = b"mandos" + binascii.hexlify(password)
192
if len(encoded) > 2048:
193
# GnuPG can't handle long passwords, so encode differently
194
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
195
.replace(b"\n", b"\\n")
196
.replace(b"\0", b"\\x00"))
197
return encoded
198
199
def encrypt(self, data, password):
200
passphrase = self.password_encode(password)
201
with tempfile.NamedTemporaryFile(
202
dir=self.tempdir) as passfile:
203
passfile.write(passphrase)
204
passfile.flush()
205
proc = subprocess.Popen(['gpg', '--symmetric',
206
'--passphrase-file',
207
passfile.name]
208
+ self.gnupgargs,
209
stdin = subprocess.PIPE,
210
stdout = subprocess.PIPE,
211
stderr = subprocess.PIPE)
212
ciphertext, err = proc.communicate(input = data)
213
if proc.returncode != 0:
214
raise PGPError(err)
215
return ciphertext
216
217
def decrypt(self, data, password):
218
passphrase = self.password_encode(password)
219
with tempfile.NamedTemporaryFile(
220
dir = self.tempdir) as passfile:
221
passfile.write(passphrase)
222
passfile.flush()
223
proc = subprocess.Popen(['gpg', '--decrypt',
224
'--passphrase-file',
225
passfile.name]
226
+ self.gnupgargs,
227
stdin = subprocess.PIPE,
228
stdout = subprocess.PIPE,
229
stderr = subprocess.PIPE)
230
decrypted_plaintext, err = proc.communicate(input = data)
231
if proc.returncode != 0:
232
raise PGPError(err)
233
return decrypted_plaintext
234
83
84
version = "1.2.3"
85
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
88
syslogger = (logging.handlers.SysLogHandler
89
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
90
address = "/dev/log"))
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
93
u' %(message)s'))
94
logger.addHandler(syslogger)
95
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
98
u' %(levelname)s:'
99
u' %(message)s'))
100
logger.addHandler(console)
235
101
236
102
class AvahiError(Exception):
237
103
def __init__(self, value, *args, **kwargs):
238
104
self.value = value
239
return super(AvahiError, self).__init__(value, *args,
240
**kwargs)
241
105
super(AvahiError, self).__init__(value, *args, **kwargs)
106
def __unicode__(self):
107
return unicode(repr(self.value))
242
108
243
109
class AvahiServiceError(AvahiError):
244
110
pass
245
111
246
247
112
class AvahiGroupError(AvahiError):
248
113
pass
249
114
254
119
Attributes:
255
120
interface: integer; avahi.IF_UNSPEC or an interface index.
256
121
Used to optionally bind to the specified interface.
257
name: string; Example: 'Mandos'
258
type: string; Example: '_mandos._tcp'.
259
See <https://www.iana.org/assignments/service-names-port-numbers>
122
name: string; Example: u'Mandos'
123
type: string; Example: u'_mandos._tcp'.
124
See <http://www.dns-sd.org/ServiceTypes.html>
260
125
port: integer; what port to announce
261
126
TXT: list of strings; TXT record for the service
262
127
domain: string; Domain to publish on, default to .local if empty.
268
133
server: D-Bus Server
269
134
bus: dbus.SystemBus()
270
135
"""
271
272
def __init__(self,
273
interface = avahi.IF_UNSPEC,
274
name = None,
275
servicetype = None,
276
port = None,
277
TXT = None,
278
domain = "",
279
host = "",
280
max_renames = 32768,
281
protocol = avahi.PROTO_UNSPEC,
282
bus = None):
136
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
137
servicetype = None, port = None, TXT = None,
138
domain = u"", host = u"", max_renames = 32768,
139
protocol = avahi.PROTO_UNSPEC, bus = None):
283
140
self.interface = interface
284
141
self.name = name
285
142
self.type = servicetype
293
150
self.group = None # our entry group
294
151
self.server = None
295
152
self.bus = bus
296
self.entry_group_state_changed_match = None
297
298
def rename(self, remove=True):
153
def rename(self):
299
154
"""Derived from the Avahi example code"""
300
155
if self.rename_count >= self.max_renames:
301
logger.critical("No suitable Zeroconf service name found"
302
" after %i retries, exiting.",
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
303
158
self.rename_count)
304
raise AvahiServiceError("Too many renames")
305
self.name = str(
306
self.server.GetAlternativeServiceName(self.name))
159
raise AvahiServiceError(u"Too many renames")
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
161
logger.info(u"Changing Zeroconf service name to %r ...",
162
self.name)
163
syslogger.setFormatter(logging.Formatter
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
166
% self.name))
167
self.remove()
168
try:
169
self.add()
170
except dbus.exceptions.DBusException, error:
171
logger.critical(u"DBusException: %s", error)
172
self.cleanup()
173
os._exit(1)
307
174
self.rename_count += 1
308
logger.info("Changing Zeroconf service name to %r ...",
309
self.name)
310
if remove:
311
self.remove()
312
try:
313
self.add()
314
except dbus.exceptions.DBusException as error:
315
if (error.get_dbus_name()
316
== "org.freedesktop.Avahi.CollisionError"):
317
logger.info("Local Zeroconf service name collision.")
318
return self.rename(remove=False)
319
else:
320
logger.critical("D-Bus Exception", exc_info=error)
321
self.cleanup()
322
os._exit(1)
323
324
175
def remove(self):
325
176
"""Derived from the Avahi example code"""
326
if self.entry_group_state_changed_match is not None:
327
self.entry_group_state_changed_match.remove()
328
self.entry_group_state_changed_match = None
329
177
if self.group is not None:
330
178
self.group.Reset()
331
332
179
def add(self):
333
180
"""Derived from the Avahi example code"""
334
self.remove()
335
181
if self.group is None:
336
182
self.group = dbus.Interface(
337
183
self.bus.get_object(avahi.DBUS_NAME,
338
184
self.server.EntryGroupNew()),
339
185
avahi.DBUS_INTERFACE_ENTRY_GROUP)
340
self.entry_group_state_changed_match = (
341
self.group.connect_to_signal(
342
'StateChanged', self.entry_group_state_changed))
343
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
186
self.group.connect_to_signal('StateChanged',
187
self
188
.entry_group_state_changed)
189
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
344
190
self.name, self.type)
345
191
self.group.AddService(
346
192
self.interface,
351
197
dbus.UInt16(self.port),
352
198
avahi.string_array_to_txt_array(self.TXT))
353
199
self.group.Commit()
354
355
200
def entry_group_state_changed(self, state, error):
356
201
"""Derived from the Avahi example code"""
357
logger.debug("Avahi entry group state change: %i", state)
202
logger.debug(u"Avahi entry group state change: %i", state)
358
203
359
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
360
logger.debug("Zeroconf service established.")
205
logger.debug(u"Zeroconf service established.")
361
206
elif state == avahi.ENTRY_GROUP_COLLISION:
362
logger.info("Zeroconf service name collision.")
207
logger.warning(u"Zeroconf service name collision.")
363
208
self.rename()
364
209
elif state == avahi.ENTRY_GROUP_FAILURE:
365
logger.critical("Avahi: Error in group state changed %s",
366
str(error))
367
raise AvahiGroupError("State changed: {!s}".format(error))
368
210
logger.critical(u"Avahi: Error in group state changed %s",
211
unicode(error))
212
raise AvahiGroupError(u"State changed: %s"
213
% unicode(error))
369
214
def cleanup(self):
370
215
"""Derived from the Avahi example code"""
371
216
if self.group is not None:
372
try:
373
self.group.Free()
374
except (dbus.exceptions.UnknownMethodException,
375
dbus.exceptions.DBusException):
376
pass
217
self.group.Free()
377
218
self.group = None
378
self.remove()
379
380
def server_state_changed(self, state, error=None):
219
def server_state_changed(self, state):
381
220
"""Derived from the Avahi example code"""
382
logger.debug("Avahi server state change: %i", state)
383
bad_states = {
384
avahi.SERVER_INVALID: "Zeroconf server invalid",
385
avahi.SERVER_REGISTERING: None,
386
avahi.SERVER_COLLISION: "Zeroconf server name collision",
387
avahi.SERVER_FAILURE: "Zeroconf server failure",
388
}
389
if state in bad_states:
390
if bad_states[state] is not None:
391
if error is None:
392
logger.error(bad_states[state])
393
else:
394
logger.error(bad_states[state] + ": %r", error)
395
self.cleanup()
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
224
self.remove()
396
225
elif state == avahi.SERVER_RUNNING:
397
try:
398
self.add()
399
except dbus.exceptions.DBusException as error:
400
if (error.get_dbus_name()
401
== "org.freedesktop.Avahi.CollisionError"):
402
logger.info("Local Zeroconf service name"
403
" collision.")
404
return self.rename(remove=False)
405
else:
406
logger.critical("D-Bus Exception", exc_info=error)
407
self.cleanup()
408
os._exit(1)
409
else:
410
if error is None:
411
logger.debug("Unknown state: %r", state)
412
else:
413
logger.debug("Unknown state: %r: %r", state, error)
414
226
self.add()
415
227
def activate(self):
416
228
"""Derived from the Avahi example code"""
417
229
if self.server is None:
418
230
self.server = dbus.Interface(
419
231
self.bus.get_object(avahi.DBUS_NAME,
420
avahi.DBUS_PATH_SERVER,
421
follow_name_owner_changes=True),
232
avahi.DBUS_PATH_SERVER),
422
233
avahi.DBUS_INTERFACE_SERVER)
423
self.server.connect_to_signal("StateChanged",
424
self.server_state_changed)
234
self.server.connect_to_signal(u"StateChanged",
235
self.server_state_changed)
425
236
self.server_state_changed(self.server.GetState())
426
237
427
238
428
class AvahiServiceToSyslog(AvahiService):
429
def rename(self, *args, **kwargs):
430
"""Add the new name to the syslog messages"""
431
ret = AvahiService.rename(self, *args, **kwargs)
432
syslogger.setFormatter(logging.Formatter(
433
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
434
.format(self.name)))
435
return ret
436
437
def call_pipe(connection, # : multiprocessing.Connection
438
func, *args, **kwargs):
439
"""This function is meant to be called by multiprocessing.Process
440
441
This function runs func(*args, **kwargs), and writes the resulting
442
return value on the provided multiprocessing.Connection.
443
"""
444
connection.send(func(*args, **kwargs))
445
connection.close()
446
447
239
class Client(object):
448
240
"""A representation of a client host served by this server.
449
241
450
242
Attributes:
451
approved: bool(); 'None' if not yet approved/disapproved
243
_approved: bool(); 'None' if not yet approved/disapproved
452
244
approval_delay: datetime.timedelta(); Time to wait for approval
453
245
approval_duration: datetime.timedelta(); Duration of one approval
454
246
checker: subprocess.Popen(); a running checker process used
461
253
instance %(name)s can be used in the command.
462
254
checker_initiator_tag: a gobject event source tag, or None
463
255
created: datetime.datetime(); (UTC) object creation
464
client_structure: Object describing what attributes a client has
465
and is used for storing the client at exit
466
256
current_checker_command: string; current running checker_command
257
disable_hook: If set, called by disable() as disable_hook(self)
467
258
disable_initiator_tag: a gobject event source tag, or None
468
259
enabled: bool()
469
260
fingerprint: string (40 or 32 hexadecimal digits); used to
472
263
interval: datetime.timedelta(); How often to start a new checker
473
264
last_approval_request: datetime.datetime(); (UTC) or None
474
265
last_checked_ok: datetime.datetime(); (UTC) or None
475
last_checker_status: integer between 0 and 255 reflecting exit
476
status of last checker. -1 reflects crashed
477
checker, -2 means no checker completed yet.
478
last_checker_signal: The signal which killed the last checker, if
479
last_checker_status is -1
480
last_enabled: datetime.datetime(); (UTC) or None
266
last_enabled: datetime.datetime(); (UTC)
481
267
name: string; from the config file, used in log messages and
482
268
D-Bus identifiers
483
269
secret: bytestring; sent verbatim (over TLS) to client
484
270
timeout: datetime.timedelta(); How long from last_checked_ok
485
271
until this client is disabled
486
extended_timeout: extra long timeout when secret has been sent
487
272
runtime_expansions: Allowed attributes for runtime expansion.
488
expires: datetime.datetime(); time (UTC) when a client will be
489
disabled, or None
490
server_settings: The server_settings dict from main()
491
273
"""
492
274
493
runtime_expansions = ("approval_delay", "approval_duration",
494
"created", "enabled", "expires",
495
"fingerprint", "host", "interval",
496
"last_approval_request", "last_checked_ok",
497
"last_enabled", "name", "timeout")
498
client_defaults = {
499
"timeout": "PT5M",
500
"extended_timeout": "PT15M",
501
"interval": "PT2M",
502
"checker": "fping -q -- %%(host)s",
503
"host": "",
504
"approval_delay": "PT0S",
505
"approval_duration": "PT1S",
506
"approved_by_default": "True",
507
"enabled": "True",
508
}
275
runtime_expansions = (u"approval_delay", u"approval_duration",
276
u"created", u"enabled", u"fingerprint",
277
u"host", u"interval", u"last_checked_ok",
278
u"last_enabled", u"name", u"timeout")
509
279
510
280
@staticmethod
511
def config_parser(config):
512
"""Construct a new dict of client settings of this form:
513
{ client_name: {setting_name: value, ...}, ...}
514
with exceptions for any special settings as defined above.
515
NOTE: Must be a pure function. Must return the same result
516
value given the same arguments.
517
"""
518
settings = {}
519
for client_name in config.sections():
520
section = dict(config.items(client_name))
521
client = settings[client_name] = {}
522
523
client["host"] = section["host"]
524
# Reformat values from string types to Python types
525
client["approved_by_default"] = config.getboolean(
526
client_name, "approved_by_default")
527
client["enabled"] = config.getboolean(client_name,
528
"enabled")
529
530
# Uppercase and remove spaces from fingerprint for later
531
# comparison purposes with return value from the
532
# fingerprint() function
533
client["fingerprint"] = (section["fingerprint"].upper()
534
.replace(" ", ""))
535
if "secret" in section:
536
client["secret"] = section["secret"].decode("base64")
537
elif "secfile" in section:
538
with open(os.path.expanduser(os.path.expandvars
539
(section["secfile"])),
540
"rb") as secfile:
541
client["secret"] = secfile.read()
542
else:
543
raise TypeError("No secret or secfile for section {}"
544
.format(section))
545
client["timeout"] = string_to_delta(section["timeout"])
546
client["extended_timeout"] = string_to_delta(
547
section["extended_timeout"])
548
client["interval"] = string_to_delta(section["interval"])
549
client["approval_delay"] = string_to_delta(
550
section["approval_delay"])
551
client["approval_duration"] = string_to_delta(
552
section["approval_duration"])
553
client["checker_command"] = section["checker"]
554
client["last_approval_request"] = None
555
client["last_checked_ok"] = None
556
client["last_checker_status"] = -2
557
558
return settings
559
560
def __init__(self, settings, name = None, server_settings=None):
281
def _timedelta_to_milliseconds(td):
282
"Convert a datetime.timedelta() to milliseconds"
283
return ((td.days * 24 * 60 * 60 * 1000)
284
+ (td.seconds * 1000)
285
+ (td.microseconds // 1000))
286
287
def timeout_milliseconds(self):
288
"Return the 'timeout' attribute in milliseconds"
289
return self._timedelta_to_milliseconds(self.timeout)
290
291
def interval_milliseconds(self):
292
"Return the 'interval' attribute in milliseconds"
293
return self._timedelta_to_milliseconds(self.interval)
294
295
def approval_delay_milliseconds(self):
296
return self._timedelta_to_milliseconds(self.approval_delay)
297
298
def __init__(self, name = None, disable_hook=None, config=None):
299
"""Note: the 'checker' key in 'config' sets the
300
'checker_command' attribute and *not* the 'checker'
301
attribute."""
561
302
self.name = name
562
if server_settings is None:
563
server_settings = {}
564
self.server_settings = server_settings
565
# adding all client settings
566
for setting, value in settings.items():
567
setattr(self, setting, value)
568
569
if self.enabled:
570
if not hasattr(self, "last_enabled"):
571
self.last_enabled = datetime.datetime.utcnow()
572
if not hasattr(self, "expires"):
573
self.expires = (datetime.datetime.utcnow()
574
+ self.timeout)
303
if config is None:
304
config = {}
305
logger.debug(u"Creating client %r", self.name)
306
# Uppercase and remove spaces from fingerprint for later
307
# comparison purposes with return value from the fingerprint()
308
# function
309
self.fingerprint = (config[u"fingerprint"].upper()
310
.replace(u" ", u""))
311
logger.debug(u" Fingerprint: %s", self.fingerprint)
312
if u"secret" in config:
313
self.secret = config[u"secret"].decode(u"base64")
314
elif u"secfile" in config:
315
with open(os.path.expanduser(os.path.expandvars
316
(config[u"secfile"])),
317
"rb") as secfile:
318
self.secret = secfile.read()
575
319
else:
576
self.last_enabled = None
577
self.expires = None
578
579
logger.debug("Creating client %r", self.name)
580
logger.debug(" Fingerprint: %s", self.fingerprint)
581
self.created = settings.get("created",
582
datetime.datetime.utcnow())
583
584
# attributes specific for this server instance
320
raise TypeError(u"No secret or secfile for client %s"
321
% self.name)
322
self.host = config.get(u"host", u"")
323
self.created = datetime.datetime.utcnow()
324
self.enabled = False
325
self.last_approval_request = None
326
self.last_enabled = None
327
self.last_checked_ok = None
328
self.timeout = string_to_delta(config[u"timeout"])
329
self.interval = string_to_delta(config[u"interval"])
330
self.disable_hook = disable_hook
585
331
self.checker = None
586
332
self.checker_initiator_tag = None
587
333
self.disable_initiator_tag = None
588
334
self.checker_callback_tag = None
335
self.checker_command = config[u"checker"]
589
336
self.current_checker_command = None
590
self.approved = None
337
self.last_connect = None
338
self._approved = None
339
self.approved_by_default = config.get(u"approved_by_default",
340
True)
591
341
self.approvals_pending = 0
592
self.changedstate = multiprocessing_manager.Condition(
593
multiprocessing_manager.Lock())
594
self.client_structure = [attr
595
for attr in self.__dict__.iterkeys()
596
if not attr.startswith("_")]
597
self.client_structure.append("client_structure")
598
599
for name, t in inspect.getmembers(
600
type(self), lambda obj: isinstance(obj, property)):
601
if not name.startswith("_"):
602
self.client_structure.append(name)
342
self.approval_delay = string_to_delta(
343
config[u"approval_delay"])
344
self.approval_duration = string_to_delta(
345
config[u"approval_duration"])
346
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
603
347
604
# Send notice to process children that client state has changed
605
348
def send_changedstate(self):
606
with self.changedstate:
607
self.changedstate.notify_all()
608
349
self.changedstate.acquire()
350
self.changedstate.notify_all()
351
self.changedstate.release()
352
609
353
def enable(self):
610
354
"""Start this client's checker and timeout hooks"""
611
if getattr(self, "enabled", False):
355
if getattr(self, u"enabled", False):
612
356
# Already enabled
613
357
return
614
self.expires = datetime.datetime.utcnow() + self.timeout
615
self.enabled = True
358
self.send_changedstate()
616
359
self.last_enabled = datetime.datetime.utcnow()
617
self.init_checker()
618
self.send_changedstate()
360
# Schedule a new checker to be started an 'interval' from now,
361
# and every interval from then on.
362
self.checker_initiator_tag = (gobject.timeout_add
363
(self.interval_milliseconds(),
364
self.start_checker))
365
# Schedule a disable() when 'timeout' has passed
366
self.disable_initiator_tag = (gobject.timeout_add
367
(self.timeout_milliseconds(),
368
self.disable))
369
self.enabled = True
370
# Also start a new checker *right now*.
371
self.start_checker()
619
372
620
373
def disable(self, quiet=True):
621
374
"""Disable this client."""
622
375
if not getattr(self, "enabled", False):
623
376
return False
624
377
if not quiet:
625
logger.info("Disabling client %s", self.name)
626
if getattr(self, "disable_initiator_tag", None) is not None:
378
self.send_changedstate()
379
if not quiet:
380
logger.info(u"Disabling client %s", self.name)
381
if getattr(self, u"disable_initiator_tag", False):
627
382
gobject.source_remove(self.disable_initiator_tag)
628
383
self.disable_initiator_tag = None
629
self.expires = None
630
if getattr(self, "checker_initiator_tag", None) is not None:
384
if getattr(self, u"checker_initiator_tag", False):
631
385
gobject.source_remove(self.checker_initiator_tag)
632
386
self.checker_initiator_tag = None
633
387
self.stop_checker()
388
if self.disable_hook:
389
self.disable_hook(self)
634
390
self.enabled = False
635
if not quiet:
636
self.send_changedstate()
637
391
# Do not run this again if called by a gobject.timeout_add
638
392
return False
639
393
640
394
def __del__(self):
395
self.disable_hook = None
641
396
self.disable()
642
397
643
def init_checker(self):
644
# Schedule a new checker to be started an 'interval' from now,
645
# and every interval from then on.
646
if self.checker_initiator_tag is not None:
647
gobject.source_remove(self.checker_initiator_tag)
648
self.checker_initiator_tag = gobject.timeout_add(
649
int(self.interval.total_seconds() * 1000),
650
self.start_checker)
651
# Schedule a disable() when 'timeout' has passed
652
if self.disable_initiator_tag is not None:
653
gobject.source_remove(self.disable_initiator_tag)
654
self.disable_initiator_tag = gobject.timeout_add(
655
int(self.timeout.total_seconds() * 1000), self.disable)
656
# Also start a new checker *right now*.
657
self.start_checker()
658
659
def checker_callback(self, source, condition, connection,
660
command):
398
def checker_callback(self, pid, condition, command):
661
399
"""The checker has completed, so take appropriate actions."""
662
400
self.checker_callback_tag = None
663
401
self.checker = None
664
# Read return code from connection (see call_pipe)
665
returncode = connection.recv()
666
connection.close()
667
668
if returncode >= 0:
669
self.last_checker_status = returncode
670
self.last_checker_signal = None
671
if self.last_checker_status == 0:
672
logger.info("Checker for %(name)s succeeded",
402
if os.WIFEXITED(condition):
403
exitstatus = os.WEXITSTATUS(condition)
404
if exitstatus == 0:
405
logger.info(u"Checker for %(name)s succeeded",
673
406
vars(self))
674
407
self.checked_ok()
675
408
else:
676
logger.info("Checker for %(name)s failed", vars(self))
409
logger.info(u"Checker for %(name)s failed",
410
vars(self))
677
411
else:
678
self.last_checker_status = -1
679
self.last_checker_signal = -returncode
680
logger.warning("Checker for %(name)s crashed?",
412
logger.warning(u"Checker for %(name)s crashed?",
681
413
vars(self))
682
return False
683
414
684
415
def checked_ok(self):
685
"""Assert that the client has been seen, alive and well."""
416
"""Bump up the timeout for this client.
417
418
This should only be called when the client has been seen,
419
alive and well.
420
"""
686
421
self.last_checked_ok = datetime.datetime.utcnow()
687
self.last_checker_status = 0
688
self.last_checker_signal = None
689
self.bump_timeout()
690
691
def bump_timeout(self, timeout=None):
692
"""Bump up the timeout for this client."""
693
if timeout is None:
694
timeout = self.timeout
695
if self.disable_initiator_tag is not None:
696
gobject.source_remove(self.disable_initiator_tag)
697
self.disable_initiator_tag = None
698
if getattr(self, "enabled", False):
699
self.disable_initiator_tag = gobject.timeout_add(
700
int(timeout.total_seconds() * 1000), self.disable)
701
self.expires = datetime.datetime.utcnow() + timeout
422
gobject.source_remove(self.disable_initiator_tag)
423
self.disable_initiator_tag = (gobject.timeout_add
424
(self.timeout_milliseconds(),
425
self.disable))
702
426
703
427
def need_approval(self):
704
428
self.last_approval_request = datetime.datetime.utcnow()
709
433
If a checker already exists, leave it running and do
710
434
nothing."""
711
435
# The reason for not killing a running checker is that if we
712
# did that, and if a checker (for some reason) started running
713
# slowly and taking more than 'interval' time, then the client
714
# would inevitably timeout, since no checker would get a
715
# chance to run to completion. If we instead leave running
436
# did that, then if a checker (for some reason) started
437
# running slowly and taking more than 'interval' time, the
438
# client would inevitably timeout, since no checker would get
439
# a chance to run to completion. If we instead leave running
716
440
# checkers alone, the checker would have to take more time
717
441
# than 'timeout' for the client to be disabled, which is as it
718
442
# should be.
719
443
720
if self.checker is not None and not self.checker.is_alive():
721
logger.warning("Checker was not alive; joining")
722
self.checker.join()
723
self.checker = None
444
# If a checker exists, make sure it is not a zombie
445
try:
446
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
447
except (AttributeError, OSError), error:
448
if (isinstance(error, OSError)
449
and error.errno != errno.ECHILD):
450
raise error
451
else:
452
if pid:
453
logger.warning(u"Checker was a zombie")
454
gobject.source_remove(self.checker_callback_tag)
455
self.checker_callback(pid, status,
456
self.current_checker_command)
724
457
# Start a new checker if needed
725
458
if self.checker is None:
726
# Escape attributes for the shell
727
escaped_attrs = {
728
attr: re.escape(str(getattr(self, attr)))
729
for attr in self.runtime_expansions }
730
459
try:
731
command = self.checker_command % escaped_attrs
732
except TypeError as error:
733
logger.error('Could not format string "%s"',
734
self.checker_command,
735
exc_info=error)
736
return True # Try again later
460
# In case checker_command has exactly one % operator
461
command = self.checker_command % self.host
462
except TypeError:
463
# Escape attributes for the shell
464
escaped_attrs = dict(
465
(attr,
466
re.escape(unicode(str(getattr(self, attr, u"")),
467
errors=
468
u'replace')))
469
for attr in
470
self.runtime_expansions)
471
472
try:
473
command = self.checker_command % escaped_attrs
474
except TypeError, error:
475
logger.error(u'Could not format string "%s":'
476
u' %s', self.checker_command, error)
477
return True # Try again later
737
478
self.current_checker_command = command
738
logger.info("Starting checker %r for %s", command,
739
self.name)
740
# We don't need to redirect stdout and stderr, since
741
# in normal mode, that is already done by daemon(),
742
# and in debug mode we don't want to. (Stdin is
743
# always replaced by /dev/null.)
744
# The exception is when not debugging but nevertheless
745
# running in the foreground; use the previously
746
# created wnull.
747
popen_args = { "close_fds": True,
748
"shell": True,
749
"cwd": "/" }
750
if (not self.server_settings["debug"]
751
and self.server_settings["foreground"]):
752
popen_args.update({"stdout": wnull,
753
"stderr": wnull })
754
pipe = multiprocessing.Pipe(duplex = False)
755
self.checker = multiprocessing.Process(
756
target = call_pipe,
757
args = (pipe[1], subprocess.call, command),
758
kwargs = popen_args)
759
self.checker.start()
760
self.checker_callback_tag = gobject.io_add_watch(
761
pipe[0].fileno(), gobject.IO_IN,
762
self.checker_callback, pipe[0], command)
479
try:
480
logger.info(u"Starting checker %r for %s",
481
command, self.name)
482
# We don't need to redirect stdout and stderr, since
483
# in normal mode, that is already done by daemon(),
484
# and in debug mode we don't want to. (Stdin is
485
# always replaced by /dev/null.)
486
self.checker = subprocess.Popen(command,
487
close_fds=True,
488
shell=True, cwd=u"/")
489
self.checker_callback_tag = (gobject.child_watch_add
490
(self.checker.pid,
491
self.checker_callback,
492
data=command))
493
# The checker may have completed before the gobject
494
# watch was added. Check for this.
495
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
496
if pid:
497
gobject.source_remove(self.checker_callback_tag)
498
self.checker_callback(pid, status, command)
499
except OSError, error:
500
logger.error(u"Failed to start subprocess: %s",
501
error)
763
502
# Re-run this periodically if run by gobject.timeout_add
764
503
return True
765
504
768
507
if self.checker_callback_tag:
769
508
gobject.source_remove(self.checker_callback_tag)
770
509
self.checker_callback_tag = None
771
if getattr(self, "checker", None) is None:
510
if getattr(self, u"checker", None) is None:
772
511
return
773
logger.debug("Stopping checker for %(name)s", vars(self))
774
self.checker.terminate()
512
logger.debug(u"Stopping checker for %(name)s", vars(self))
513
try:
514
os.kill(self.checker.pid, signal.SIGTERM)
515
#time.sleep(0.5)
516
#if self.checker.poll() is None:
517
# os.kill(self.checker.pid, signal.SIGKILL)
518
except OSError, error:
519
if error.errno != errno.ESRCH: # No such process
520
raise
775
521
self.checker = None
776
522
777
778
def dbus_service_property(dbus_interface,
779
signature="v",
780
access="readwrite",
781
byte_arrays=False):
523
def dbus_service_property(dbus_interface, signature=u"v",
524
access=u"readwrite", byte_arrays=False):
782
525
"""Decorators for marking methods of a DBusObjectWithProperties to
783
526
become properties on the D-Bus.
784
527
791
534
"""
792
535
# Encoding deeply encoded byte arrays is not supported yet by the
793
536
# "Set" method, so we fail early here:
794
if byte_arrays and signature != "ay":
795
raise ValueError("Byte arrays not supported for non-'ay'"
796
" signature {!r}".format(signature))
797
537
if byte_arrays and signature != u"ay":
538
raise ValueError(u"Byte arrays not supported for non-'ay'"
539
u" signature %r" % signature)
798
540
def decorator(func):
799
541
func._dbus_is_property = True
800
542
func._dbus_interface = dbus_interface
801
543
func._dbus_signature = signature
802
544
func._dbus_access = access
803
545
func._dbus_name = func.__name__
804
if func._dbus_name.endswith("_dbus_property"):
546
if func._dbus_name.endswith(u"_dbus_property"):
805
547
func._dbus_name = func._dbus_name[:-14]
806
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
807
return func
808
809
return decorator
810
811
812
def dbus_interface_annotations(dbus_interface):
813
"""Decorator for marking functions returning interface annotations
814
815
Usage:
816
817
@dbus_interface_annotations("org.example.Interface")
818
def _foo(self): # Function name does not matter
819
return {"org.freedesktop.DBus.Deprecated": "true",
820
"org.freedesktop.DBus.Property.EmitsChangedSignal":
821
"false"}
822
"""
823
824
def decorator(func):
825
func._dbus_is_interface = True
826
func._dbus_interface = dbus_interface
827
func._dbus_name = dbus_interface
828
return func
829
830
return decorator
831
832
833
def dbus_annotations(annotations):
834
"""Decorator to annotate D-Bus methods, signals or properties
835
Usage:
836
837
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
838
"org.freedesktop.DBus.Property."
839
"EmitsChangedSignal": "false"})
840
@dbus_service_property("org.example.Interface", signature="b",
841
access="r")
842
def Property_dbus_property(self):
843
return dbus.Boolean(False)
844
845
See also the DBusObjectWithAnnotations class.
846
"""
847
848
def decorator(func):
849
func._dbus_annotations = annotations
850
return func
851
548
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
549
return func
852
550
return decorator
853
551
854
552
855
553
class DBusPropertyException(dbus.exceptions.DBusException):
856
554
"""A base class for D-Bus property-related exceptions
857
555
"""
858
pass
556
def __unicode__(self):
557
return unicode(str(self))
859
558
860
559
861
560
class DBusPropertyAccessException(DBusPropertyException):
870
569
pass
871
570
872
571
873
class DBusObjectWithAnnotations(dbus.service.Object):
874
"""A D-Bus object with annotations.
875
876
Classes inheriting from this can use the dbus_annotations
877
decorator to add annotations to methods or signals.
878
"""
879
880
@staticmethod
881
def _is_dbus_thing(thing):
882
"""Returns a function testing if an attribute is a D-Bus thing
883
884
If called like _is_dbus_thing("method") it returns a function
885
suitable for use as predicate to inspect.getmembers().
886
"""
887
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
888
False)
889
890
def _get_all_dbus_things(self, thing):
891
"""Returns a generator of (name, attribute) pairs
892
"""
893
return ((getattr(athing.__get__(self), "_dbus_name", name),
894
athing.__get__(self))
895
for cls in self.__class__.__mro__
896
for name, athing in
897
inspect.getmembers(cls, self._is_dbus_thing(thing)))
898
899
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
900
out_signature = "s",
901
path_keyword = 'object_path',
902
connection_keyword = 'connection')
903
def Introspect(self, object_path, connection):
904
"""Overloading of standard D-Bus method.
905
906
Inserts annotation tags on methods and signals.
907
"""
908
xmlstring = dbus.service.Object.Introspect(self, object_path,
909
connection)
910
try:
911
document = xml.dom.minidom.parseString(xmlstring)
912
913
for if_tag in document.getElementsByTagName("interface"):
914
# Add annotation tags
915
for typ in ("method", "signal"):
916
for tag in if_tag.getElementsByTagName(typ):
917
annots = dict()
918
for name, prop in (self.
919
_get_all_dbus_things(typ)):
920
if (name == tag.getAttribute("name")
921
and prop._dbus_interface
922
== if_tag.getAttribute("name")):
923
annots.update(getattr(
924
prop, "_dbus_annotations", {}))
925
for name, value in annots.items():
926
ann_tag = document.createElement(
927
"annotation")
928
ann_tag.setAttribute("name", name)
929
ann_tag.setAttribute("value", value)
930
tag.appendChild(ann_tag)
931
# Add interface annotation tags
932
for annotation, value in dict(
933
itertools.chain.from_iterable(
934
annotations().items()
935
for name, annotations
936
in self._get_all_dbus_things("interface")
937
if name == if_tag.getAttribute("name")
938
)).items():
939
ann_tag = document.createElement("annotation")
940
ann_tag.setAttribute("name", annotation)
941
ann_tag.setAttribute("value", value)
942
if_tag.appendChild(ann_tag)
943
# Fix argument name for the Introspect method itself
944
if (if_tag.getAttribute("name")
945
== dbus.INTROSPECTABLE_IFACE):
946
for cn in if_tag.getElementsByTagName("method"):
947
if cn.getAttribute("name") == "Introspect":
948
for arg in cn.getElementsByTagName("arg"):
949
if (arg.getAttribute("direction")
950
== "out"):
951
arg.setAttribute("name",
952
"xml_data")
953
xmlstring = document.toxml("utf-8")
954
document.unlink()
955
except (AttributeError, xml.dom.DOMException,
956
xml.parsers.expat.ExpatError) as error:
957
logger.error("Failed to override Introspection method",
958
exc_info=error)
959
return xmlstring
960
961
962
class DBusObjectWithProperties(DBusObjectWithAnnotations):
572
class DBusObjectWithProperties(dbus.service.Object):
963
573
"""A D-Bus object with properties.
964
574
965
575
Classes inheriting from this can use the dbus_service_property
966
576
decorator to expose methods as D-Bus properties. It exposes the
967
577
standard Get(), Set(), and GetAll() methods on the D-Bus.
968
578
"""
969
579
580
@staticmethod
581
def _is_dbus_property(obj):
582
return getattr(obj, u"_dbus_is_property", False)
583
584
def _get_all_dbus_properties(self):
585
"""Returns a generator of (name, attribute) pairs
586
"""
587
return ((prop._dbus_name, prop)
588
for name, prop in
589
inspect.getmembers(self, self._is_dbus_property))
590
970
591
def _get_dbus_property(self, interface_name, property_name):
971
592
"""Returns a bound method if one exists which is a D-Bus
972
593
property with the specified name and interface.
973
594
"""
974
for cls in self.__class__.__mro__:
975
for name, value in inspect.getmembers(
976
cls, self._is_dbus_thing("property")):
977
if (value._dbus_name == property_name
978
and value._dbus_interface == interface_name):
979
return value.__get__(self)
980
595
for name in (property_name,
596
property_name + u"_dbus_property"):
597
prop = getattr(self, name, None)
598
if (prop is None
599
or not self._is_dbus_property(prop)
600
or prop._dbus_name != property_name
601
or (interface_name and prop._dbus_interface
602
and interface_name != prop._dbus_interface)):
603
continue
604
return prop
981
605
# No such property
982
raise DBusPropertyNotFound("{}:{}.{}".format(
983
self.dbus_object_path, interface_name, property_name))
984
985
@classmethod
986
def _get_all_interface_names(cls):
987
"""Get a sequence of all interfaces supported by an object"""
988
return (name for name in set(getattr(getattr(x, attr),
989
"_dbus_interface", None)
990
for x in (inspect.getmro(cls))
991
for attr in dir(x))
992
if name is not None)
993
994
@dbus.service.method(dbus.PROPERTIES_IFACE,
995
in_signature="ss",
996
out_signature="v")
606
raise DBusPropertyNotFound(self.dbus_object_path + u":"
607
+ interface_name + u"."
608
+ property_name)
609
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
611
out_signature=u"v")
997
612
def Get(self, interface_name, property_name):
998
613
"""Standard D-Bus property Get() method, see D-Bus standard.
999
614
"""
1000
615
prop = self._get_dbus_property(interface_name, property_name)
1001
if prop._dbus_access == "write":
616
if prop._dbus_access == u"write":
1002
617
raise DBusPropertyAccessException(property_name)
1003
618
value = prop()
1004
if not hasattr(value, "variant_level"):
619
if not hasattr(value, u"variant_level"):
1005
620
return value
1006
621
return type(value)(value, variant_level=value.variant_level+1)
1007
622
1008
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
623
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1009
624
def Set(self, interface_name, property_name, value):
1010
625
"""Standard D-Bus property Set() method, see D-Bus standard.
1011
626
"""
1012
627
prop = self._get_dbus_property(interface_name, property_name)
1013
if prop._dbus_access == "read":
628
if prop._dbus_access == u"read":
1014
629
raise DBusPropertyAccessException(property_name)
1015
if prop._dbus_get_args_options["byte_arrays"]:
630
if prop._dbus_get_args_options[u"byte_arrays"]:
1016
631
# The byte_arrays option is not supported yet on
1017
632
# signatures other than "ay".
1018
if prop._dbus_signature != "ay":
1019
raise ValueError("Byte arrays not supported for non-"
1020
"'ay' signature {!r}"
1021
.format(prop._dbus_signature))
1022
value = dbus.ByteArray(b''.join(chr(byte)
1023
for byte in value))
633
if prop._dbus_signature != u"ay":
634
raise ValueError
635
value = dbus.ByteArray(''.join(unichr(byte)
636
for byte in value))
1024
637
prop(value)
1025
638
1026
@dbus.service.method(dbus.PROPERTIES_IFACE,
1027
in_signature="s",
1028
out_signature="a{sv}")
639
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
640
out_signature=u"a{sv}")
1029
641
def GetAll(self, interface_name):
1030
642
"""Standard D-Bus property GetAll() method, see D-Bus
1031
643
standard.
1032
644
1033
645
Note: Will not include properties with access="write".
1034
646
"""
1035
properties = {}
1036
for name, prop in self._get_all_dbus_things("property"):
647
all = {}
648
for name, prop in self._get_all_dbus_properties():
1037
649
if (interface_name
1038
650
and interface_name != prop._dbus_interface):
1039
651
# Interface non-empty but did not match
1040
652
continue
1041
653
# Ignore write-only properties
1042
if prop._dbus_access == "write":
654
if prop._dbus_access == u"write":
1043
655
continue
1044
656
value = prop()
1045
if not hasattr(value, "variant_level"):
1046
properties[name] = value
657
if not hasattr(value, u"variant_level"):
658
all[name] = value
1047
659
continue
1048
properties[name] = type(value)(
1049
value, variant_level = value.variant_level + 1)
1050
return dbus.Dictionary(properties, signature="sv")
1051
1052
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1053
def PropertiesChanged(self, interface_name, changed_properties,
1054
invalidated_properties):
1055
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1056
standard.
1057
"""
1058
pass
660
all[name] = type(value)(value, variant_level=
661
value.variant_level+1)
662
return dbus.Dictionary(all, signature=u"sv")
1059
663
1060
664
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1061
out_signature="s",
665
out_signature=u"s",
1062
666
path_keyword='object_path',
1063
667
connection_keyword='connection')
1064
668
def Introspect(self, object_path, connection):
1065
"""Overloading of standard D-Bus method.
1066
1067
Inserts property tags and interface annotation tags.
669
"""Standard D-Bus method, overloaded to insert property tags.
1068
670
"""
1069
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1070
object_path,
1071
connection)
671
xmlstring = dbus.service.Object.Introspect(self, object_path,
672
connection)
1072
673
try:
1073
674
document = xml.dom.minidom.parseString(xmlstring)
1074
1075
675
def make_tag(document, name, prop):
1076
e = document.createElement("property")
1077
e.setAttribute("name", name)
1078
e.setAttribute("type", prop._dbus_signature)
1079
e.setAttribute("access", prop._dbus_access)
676
e = document.createElement(u"property")
677
e.setAttribute(u"name", name)
678
e.setAttribute(u"type", prop._dbus_signature)
679
e.setAttribute(u"access", prop._dbus_access)
1080
680
return e
1081
1082
for if_tag in document.getElementsByTagName("interface"):
1083
# Add property tags
681
for if_tag in document.getElementsByTagName(u"interface"):
1084
682
for tag in (make_tag(document, name, prop)
1085
683
for name, prop
1086
in self._get_all_dbus_things("property")
684
in self._get_all_dbus_properties()
1087
685
if prop._dbus_interface
1088
== if_tag.getAttribute("name")):
686
== if_tag.getAttribute(u"name")):
1089
687
if_tag.appendChild(tag)
1090
# Add annotation tags for properties
1091
for tag in if_tag.getElementsByTagName("property"):
1092
annots = dict()
1093
for name, prop in self._get_all_dbus_things(
1094
"property"):
1095
if (name == tag.getAttribute("name")
1096
and prop._dbus_interface
1097
== if_tag.getAttribute("name")):
1098
annots.update(getattr(
1099
prop, "_dbus_annotations", {}))
1100
for name, value in annots.items():
1101
ann_tag = document.createElement(
1102
"annotation")
1103
ann_tag.setAttribute("name", name)
1104
ann_tag.setAttribute("value", value)
1105
tag.appendChild(ann_tag)
1106
688
# Add the names to the return values for the
1107
689
# "org.freedesktop.DBus.Properties" methods
1108
if (if_tag.getAttribute("name")
1109
== "org.freedesktop.DBus.Properties"):
1110
for cn in if_tag.getElementsByTagName("method"):
1111
if cn.getAttribute("name") == "Get":
1112
for arg in cn.getElementsByTagName("arg"):
1113
if (arg.getAttribute("direction")
1114
== "out"):
1115
arg.setAttribute("name", "value")
1116
elif cn.getAttribute("name") == "GetAll":
1117
for arg in cn.getElementsByTagName("arg"):
1118
if (arg.getAttribute("direction")
1119
== "out"):
1120
arg.setAttribute("name", "props")
1121
xmlstring = document.toxml("utf-8")
1122
document.unlink()
1123
except (AttributeError, xml.dom.DOMException,
1124
xml.parsers.expat.ExpatError) as error:
1125
logger.error("Failed to override Introspection method",
1126
exc_info=error)
1127
return xmlstring
1128
1129
try:
1130
dbus.OBJECT_MANAGER_IFACE
1131
except AttributeError:
1132
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1133
1134
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1135
"""A D-Bus object with an ObjectManager.
1136
1137
Classes inheriting from this exposes the standard
1138
GetManagedObjects call and the InterfacesAdded and
1139
InterfacesRemoved signals on the standard
1140
"org.freedesktop.DBus.ObjectManager" interface.
1141
1142
Note: No signals are sent automatically; they must be sent
1143
manually.
1144
"""
1145
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1146
out_signature = "a{oa{sa{sv}}}")
1147
def GetManagedObjects(self):
1148
"""This function must be overridden"""
1149
raise NotImplementedError()
1150
1151
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1152
signature = "oa{sa{sv}}")
1153
def InterfacesAdded(self, object_path, interfaces_and_properties):
1154
pass
1155
1156
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1157
def InterfacesRemoved(self, object_path, interfaces):
1158
pass
1159
1160
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1161
out_signature = "s",
1162
path_keyword = 'object_path',
1163
connection_keyword = 'connection')
1164
def Introspect(self, object_path, connection):
1165
"""Overloading of standard D-Bus method.
1166
1167
Override return argument name of GetManagedObjects to be
1168
"objpath_interfaces_and_properties"
1169
"""
1170
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1171
object_path,
1172
connection)
1173
try:
1174
document = xml.dom.minidom.parseString(xmlstring)
1175
1176
for if_tag in document.getElementsByTagName("interface"):
1177
# Fix argument name for the GetManagedObjects method
1178
if (if_tag.getAttribute("name")
1179
== dbus.OBJECT_MANAGER_IFACE):
1180
for cn in if_tag.getElementsByTagName("method"):
1181
if (cn.getAttribute("name")
1182
== "GetManagedObjects"):
1183
for arg in cn.getElementsByTagName("arg"):
1184
if (arg.getAttribute("direction")
1185
== "out"):
1186
arg.setAttribute(
1187
"name",
1188
"objpath_interfaces"
1189
"_and_properties")
1190
xmlstring = document.toxml("utf-8")
1191
document.unlink()
1192
except (AttributeError, xml.dom.DOMException,
1193
xml.parsers.expat.ExpatError) as error:
1194
logger.error("Failed to override Introspection method",
1195
exc_info = error)
1196
return xmlstring
1197
1198
def datetime_to_dbus(dt, variant_level=0):
1199
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1200
if dt is None:
1201
return dbus.String("", variant_level = variant_level)
1202
return dbus.String(dt.isoformat(), variant_level=variant_level)
1203
1204
1205
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1206
"""A class decorator; applied to a subclass of
1207
dbus.service.Object, it will add alternate D-Bus attributes with
1208
interface names according to the "alt_interface_names" mapping.
1209
Usage:
1210
1211
@alternate_dbus_interfaces({"org.example.Interface":
1212
"net.example.AlternateInterface"})
1213
class SampleDBusObject(dbus.service.Object):
1214
@dbus.service.method("org.example.Interface")
1215
def SampleDBusMethod():
1216
pass
1217
1218
The above "SampleDBusMethod" on "SampleDBusObject" will be
1219
reachable via two interfaces: "org.example.Interface" and
1220
"net.example.AlternateInterface", the latter of which will have
1221
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1222
"true", unless "deprecate" is passed with a False value.
1223
1224
This works for methods and signals, and also for D-Bus properties
1225
(from DBusObjectWithProperties) and interfaces (from the
1226
dbus_interface_annotations decorator).
1227
"""
1228
1229
def wrapper(cls):
1230
for orig_interface_name, alt_interface_name in (
1231
alt_interface_names.items()):
1232
attr = {}
1233
interface_names = set()
1234
# Go though all attributes of the class
1235
for attrname, attribute in inspect.getmembers(cls):
1236
# Ignore non-D-Bus attributes, and D-Bus attributes
1237
# with the wrong interface name
1238
if (not hasattr(attribute, "_dbus_interface")
1239
or not attribute._dbus_interface.startswith(
1240
orig_interface_name)):
1241
continue
1242
# Create an alternate D-Bus interface name based on
1243
# the current name
1244
alt_interface = attribute._dbus_interface.replace(
1245
orig_interface_name, alt_interface_name)
1246
interface_names.add(alt_interface)
1247
# Is this a D-Bus signal?
1248
if getattr(attribute, "_dbus_is_signal", False):
1249
if sys.version_info.major == 2:
1250
# Extract the original non-method undecorated
1251
# function by black magic
1252
nonmethod_func = (dict(
1253
zip(attribute.func_code.co_freevars,
1254
attribute.__closure__))
1255
["func"].cell_contents)
1256
else:
1257
nonmethod_func = attribute
1258
# Create a new, but exactly alike, function
1259
# object, and decorate it to be a new D-Bus signal
1260
# with the alternate D-Bus interface name
1261
if sys.version_info.major == 2:
1262
new_function = types.FunctionType(
1263
nonmethod_func.func_code,
1264
nonmethod_func.func_globals,
1265
nonmethod_func.func_name,
1266
nonmethod_func.func_defaults,
1267
nonmethod_func.func_closure)
1268
else:
1269
new_function = types.FunctionType(
1270
nonmethod_func.__code__,
1271
nonmethod_func.__globals__,
1272
nonmethod_func.__name__,
1273
nonmethod_func.__defaults__,
1274
nonmethod_func.__closure__)
1275
new_function = (dbus.service.signal(
1276
alt_interface,
1277
attribute._dbus_signature)(new_function))
1278
# Copy annotations, if any
1279
try:
1280
new_function._dbus_annotations = dict(
1281
attribute._dbus_annotations)
1282
except AttributeError:
1283
pass
1284
# Define a creator of a function to call both the
1285
# original and alternate functions, so both the
1286
# original and alternate signals gets sent when
1287
# the function is called
1288
def fixscope(func1, func2):
1289
"""This function is a scope container to pass
1290
func1 and func2 to the "call_both" function
1291
outside of its arguments"""
1292
1293
@functools.wraps(func2)
1294
def call_both(*args, **kwargs):
1295
"""This function will emit two D-Bus
1296
signals by calling func1 and func2"""
1297
func1(*args, **kwargs)
1298
func2(*args, **kwargs)
1299
# Make wrapper function look like a D-Bus signal
1300
for name, attr in inspect.getmembers(func2):
1301
if name.startswith("_dbus_"):
1302
setattr(call_both, name, attr)
1303
1304
return call_both
1305
# Create the "call_both" function and add it to
1306
# the class
1307
attr[attrname] = fixscope(attribute, new_function)
1308
# Is this a D-Bus method?
1309
elif getattr(attribute, "_dbus_is_method", False):
1310
# Create a new, but exactly alike, function
1311
# object. Decorate it to be a new D-Bus method
1312
# with the alternate D-Bus interface name. Add it
1313
# to the class.
1314
attr[attrname] = (
1315
dbus.service.method(
1316
alt_interface,
1317
attribute._dbus_in_signature,
1318
attribute._dbus_out_signature)
1319
(types.FunctionType(attribute.func_code,
1320
attribute.func_globals,
1321
attribute.func_name,
1322
attribute.func_defaults,
1323
attribute.func_closure)))
1324
# Copy annotations, if any
1325
try:
1326
attr[attrname]._dbus_annotations = dict(
1327
attribute._dbus_annotations)
1328
except AttributeError:
1329
pass
1330
# Is this a D-Bus property?
1331
elif getattr(attribute, "_dbus_is_property", False):
1332
# Create a new, but exactly alike, function
1333
# object, and decorate it to be a new D-Bus
1334
# property with the alternate D-Bus interface
1335
# name. Add it to the class.
1336
attr[attrname] = (dbus_service_property(
1337
alt_interface, attribute._dbus_signature,
1338
attribute._dbus_access,
1339
attribute._dbus_get_args_options
1340
["byte_arrays"])
1341
(types.FunctionType(
1342
attribute.func_code,
1343
attribute.func_globals,
1344
attribute.func_name,
1345
attribute.func_defaults,
1346
attribute.func_closure)))
1347
# Copy annotations, if any
1348
try:
1349
attr[attrname]._dbus_annotations = dict(
1350
attribute._dbus_annotations)
1351
except AttributeError:
1352
pass
1353
# Is this a D-Bus interface?
1354
elif getattr(attribute, "_dbus_is_interface", False):
1355
# Create a new, but exactly alike, function
1356
# object. Decorate it to be a new D-Bus interface
1357
# with the alternate D-Bus interface name. Add it
1358
# to the class.
1359
attr[attrname] = (
1360
dbus_interface_annotations(alt_interface)
1361
(types.FunctionType(attribute.func_code,
1362
attribute.func_globals,
1363
attribute.func_name,
1364
attribute.func_defaults,
1365
attribute.func_closure)))
1366
if deprecate:
1367
# Deprecate all alternate interfaces
1368
iname="_AlternateDBusNames_interface_annotation{}"
1369
for interface_name in interface_names:
1370
1371
@dbus_interface_annotations(interface_name)
1372
def func(self):
1373
return { "org.freedesktop.DBus.Deprecated":
1374
"true" }
1375
# Find an unused name
1376
for aname in (iname.format(i)
1377
for i in itertools.count()):
1378
if aname not in attr:
1379
attr[aname] = func
1380
break
1381
if interface_names:
1382
# Replace the class with a new subclass of it with
1383
# methods, signals, etc. as created above.
1384
cls = type(b"{}Alternate".format(cls.__name__),
1385
(cls, ), attr)
1386
return cls
1387
1388
return wrapper
1389
1390
1391
@alternate_dbus_interfaces({"se.recompile.Mandos":
1392
"se.bsnet.fukt.Mandos"})
690
if (if_tag.getAttribute(u"name")
691
== u"org.freedesktop.DBus.Properties"):
692
for cn in if_tag.getElementsByTagName(u"method"):
693
if cn.getAttribute(u"name") == u"Get":
694
for arg in cn.getElementsByTagName(u"arg"):
695
if (arg.getAttribute(u"direction")
696
== u"out"):
697
arg.setAttribute(u"name", u"value")
698
elif cn.getAttribute(u"name") == u"GetAll":
699
for arg in cn.getElementsByTagName(u"arg"):
700
if (arg.getAttribute(u"direction")
701
== u"out"):
702
arg.setAttribute(u"name", u"props")
703
xmlstring = document.toxml(u"utf-8")
704
document.unlink()
705
except (AttributeError, xml.dom.DOMException,
706
xml.parsers.expat.ExpatError), error:
707
logger.error(u"Failed to override Introspection method",
708
error)
709
return xmlstring
710
711
1393
712
class ClientDBus(Client, DBusObjectWithProperties):
1394
713
"""A Client class using D-Bus
1395
714
1399
718
"""
1400
719
1401
720
runtime_expansions = (Client.runtime_expansions
1402
+ ("dbus_object_path", ))
1403
1404
_interface = "se.recompile.Mandos.Client"
721
+ (u"dbus_object_path",))
1405
722
1406
723
# dbus.service.Object doesn't use super(), so we can't either.
1407
724
1408
725
def __init__(self, bus = None, *args, **kwargs):
726
self._approvals_pending = 0
1409
727
self.bus = bus
1410
728
Client.__init__(self, *args, **kwargs)
1411
729
# Only now, when this client is initialized, can it show up on
1412
730
# the D-Bus
1413
client_object_name = str(self.name).translate(
1414
{ord("."): ord("_"),
1415
ord("-"): ord("_")})
1416
self.dbus_object_path = dbus.ObjectPath(
1417
"/clients/" + client_object_name)
731
client_object_name = unicode(self.name).translate(
732
{ord(u"."): ord(u"_"),
733
ord(u"-"): ord(u"_")})
734
self.dbus_object_path = (dbus.ObjectPath
735
(u"/clients/" + client_object_name))
1418
736
DBusObjectWithProperties.__init__(self, self.bus,
1419
737
self.dbus_object_path)
1420
1421
def notifychangeproperty(transform_func, dbus_name,
1422
type_func=lambda x: x,
1423
variant_level=1,
1424
invalidate_only=False,
1425
_interface=_interface):
1426
""" Modify a variable so that it's a property which announces
1427
its changes to DBus.
1428
1429
transform_fun: Function that takes a value and a variant_level
1430
and transforms it to a D-Bus type.
1431
dbus_name: D-Bus name of the variable
1432
type_func: Function that transform the value before sending it
1433
to the D-Bus. Default: no transform
1434
variant_level: D-Bus variant level. Default: 1
1435
"""
1436
attrname = "_{}".format(dbus_name)
1437
1438
def setter(self, value):
1439
if hasattr(self, "dbus_object_path"):
1440
if (not hasattr(self, attrname) or
1441
type_func(getattr(self, attrname, None))
1442
!= type_func(value)):
1443
if invalidate_only:
1444
self.PropertiesChanged(
1445
_interface, dbus.Dictionary(),
1446
dbus.Array((dbus_name, )))
1447
else:
1448
dbus_value = transform_func(
1449
type_func(value),
1450
variant_level = variant_level)
1451
self.PropertyChanged(dbus.String(dbus_name),
1452
dbus_value)
1453
self.PropertiesChanged(
1454
_interface,
1455
dbus.Dictionary({ dbus.String(dbus_name):
1456
dbus_value }),
1457
dbus.Array())
1458
setattr(self, attrname, value)
1459
1460
return property(lambda self: getattr(self, attrname), setter)
1461
1462
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1463
approvals_pending = notifychangeproperty(dbus.Boolean,
1464
"ApprovalPending",
1465
type_func = bool)
1466
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1467
last_enabled = notifychangeproperty(datetime_to_dbus,
1468
"LastEnabled")
1469
checker = notifychangeproperty(
1470
dbus.Boolean, "CheckerRunning",
1471
type_func = lambda checker: checker is not None)
1472
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1473
"LastCheckedOK")
1474
last_checker_status = notifychangeproperty(dbus.Int16,
1475
"LastCheckerStatus")
1476
last_approval_request = notifychangeproperty(
1477
datetime_to_dbus, "LastApprovalRequest")
1478
approved_by_default = notifychangeproperty(dbus.Boolean,
1479
"ApprovedByDefault")
1480
approval_delay = notifychangeproperty(
1481
dbus.UInt64, "ApprovalDelay",
1482
type_func = lambda td: td.total_seconds() * 1000)
1483
approval_duration = notifychangeproperty(
1484
dbus.UInt64, "ApprovalDuration",
1485
type_func = lambda td: td.total_seconds() * 1000)
1486
host = notifychangeproperty(dbus.String, "Host")
1487
timeout = notifychangeproperty(
1488
dbus.UInt64, "Timeout",
1489
type_func = lambda td: td.total_seconds() * 1000)
1490
extended_timeout = notifychangeproperty(
1491
dbus.UInt64, "ExtendedTimeout",
1492
type_func = lambda td: td.total_seconds() * 1000)
1493
interval = notifychangeproperty(
1494
dbus.UInt64, "Interval",
1495
type_func = lambda td: td.total_seconds() * 1000)
1496
checker_command = notifychangeproperty(dbus.String, "Checker")
1497
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1498
invalidate_only=True)
1499
1500
del notifychangeproperty
738
739
def _get_approvals_pending(self):
740
return self._approvals_pending
741
def _set_approvals_pending(self, value):
742
old_value = self._approvals_pending
743
self._approvals_pending = value
744
bval = bool(value)
745
if (hasattr(self, "dbus_object_path")
746
and bval is not bool(old_value)):
747
dbus_bool = dbus.Boolean(bval, variant_level=1)
748
self.PropertyChanged(dbus.String(u"ApprovalPending"),
749
dbus_bool)
750
751
approvals_pending = property(_get_approvals_pending,
752
_set_approvals_pending)
753
del _get_approvals_pending, _set_approvals_pending
754
755
@staticmethod
756
def _datetime_to_dbus(dt, variant_level=0):
757
"""Convert a UTC datetime.datetime() to a D-Bus type."""
758
return dbus.String(dt.isoformat(),
759
variant_level=variant_level)
760
761
def enable(self):
762
oldstate = getattr(self, u"enabled", False)
763
r = Client.enable(self)
764
if oldstate != self.enabled:
765
# Emit D-Bus signals
766
self.PropertyChanged(dbus.String(u"Enabled"),
767
dbus.Boolean(True, variant_level=1))
768
self.PropertyChanged(
769
dbus.String(u"LastEnabled"),
770
self._datetime_to_dbus(self.last_enabled,
771
variant_level=1))
772
return r
773
774
def disable(self, quiet = False):
775
oldstate = getattr(self, u"enabled", False)
776
r = Client.disable(self, quiet=quiet)
777
if not quiet and oldstate != self.enabled:
778
# Emit D-Bus signal
779
self.PropertyChanged(dbus.String(u"Enabled"),
780
dbus.Boolean(False, variant_level=1))
781
return r
1501
782
1502
783
def __del__(self, *args, **kwargs):
1503
784
try:
1504
785
self.remove_from_connection()
1505
786
except LookupError:
1506
787
pass
1507
if hasattr(DBusObjectWithProperties, "__del__"):
788
if hasattr(DBusObjectWithProperties, u"__del__"):
1508
789
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1509
790
Client.__del__(self, *args, **kwargs)
1510
791
1511
def checker_callback(self, source, condition,
1512
connection, command, *args, **kwargs):
1513
ret = Client.checker_callback(self, source, condition,
1514
connection, command, *args,
1515
**kwargs)
1516
exitstatus = self.last_checker_status
1517
if exitstatus >= 0:
792
def checker_callback(self, pid, condition, command,
793
*args, **kwargs):
794
self.checker_callback_tag = None
795
self.checker = None
796
# Emit D-Bus signal
797
self.PropertyChanged(dbus.String(u"CheckerRunning"),
798
dbus.Boolean(False, variant_level=1))
799
if os.WIFEXITED(condition):
800
exitstatus = os.WEXITSTATUS(condition)
1518
801
# Emit D-Bus signal
1519
802
self.CheckerCompleted(dbus.Int16(exitstatus),
1520
# This is specific to GNU libC
1521
dbus.Int64(exitstatus << 8),
803
dbus.Int64(condition),
1522
804
dbus.String(command))
1523
805
else:
1524
806
# Emit D-Bus signal
1525
807
self.CheckerCompleted(dbus.Int16(-1),
1526
dbus.Int64(
1527
# This is specific to GNU libC
1528
(exitstatus << 8)
1529
| self.last_checker_signal),
808
dbus.Int64(condition),
1530
809
dbus.String(command))
1531
return ret
810
811
return Client.checker_callback(self, pid, condition, command,
812
*args, **kwargs)
813
814
def checked_ok(self, *args, **kwargs):
815
r = Client.checked_ok(self, *args, **kwargs)
816
# Emit D-Bus signal
817
self.PropertyChanged(
818
dbus.String(u"LastCheckedOK"),
819
(self._datetime_to_dbus(self.last_checked_ok,
820
variant_level=1)))
821
return r
822
823
def need_approval(self, *args, **kwargs):
824
r = Client.need_approval(self, *args, **kwargs)
825
# Emit D-Bus signal
826
self.PropertyChanged(
827
dbus.String(u"LastApprovalRequest"),
828
(self._datetime_to_dbus(self.last_approval_request,
829
variant_level=1)))
830
return r
1532
831
1533
832
def start_checker(self, *args, **kwargs):
1534
old_checker_pid = getattr(self.checker, "pid", None)
833
old_checker = self.checker
834
if self.checker is not None:
835
old_checker_pid = self.checker.pid
836
else:
837
old_checker_pid = None
1535
838
r = Client.start_checker(self, *args, **kwargs)
1536
839
# Only if new checker process was started
1537
840
if (self.checker is not None
1538
841
and old_checker_pid != self.checker.pid):
1539
842
# Emit D-Bus signal
1540
843
self.CheckerStarted(self.current_checker_command)
844
self.PropertyChanged(
845
dbus.String(u"CheckerRunning"),
846
dbus.Boolean(True, variant_level=1))
1541
847
return r
1542
848
849
def stop_checker(self, *args, **kwargs):
850
old_checker = getattr(self, u"checker", None)
851
r = Client.stop_checker(self, *args, **kwargs)
852
if (old_checker is not None
853
and getattr(self, u"checker", None) is None):
854
self.PropertyChanged(dbus.String(u"CheckerRunning"),
855
dbus.Boolean(False, variant_level=1))
856
return r
857
1543
858
def _reset_approved(self):
1544
self.approved = None
859
self._approved = None
1545
860
return False
1546
861
1547
862
def approve(self, value=True):
1548
self.approved = value
1549
gobject.timeout_add(int(self.approval_duration.total_seconds()
1550
* 1000), self._reset_approved)
1551
863
self.send_changedstate()
864
self._approved = value
865
gobject.timeout_add(self._timedelta_to_milliseconds
866
(self.approval_duration),
867
self._reset_approved)
868
1552
869
1553
870
## D-Bus methods, signals & properties
1554
1555
## Interfaces
871
_interface = u"se.bsnet.fukt.Mandos.Client"
1556
872
1557
873
## Signals
1558
874
1559
875
# CheckerCompleted - signal
1560
@dbus.service.signal(_interface, signature="nxs")
876
@dbus.service.signal(_interface, signature=u"nxs")
1561
877
def CheckerCompleted(self, exitcode, waitstatus, command):
1562
878
"D-Bus signal"
1563
879
pass
1564
880
1565
881
# CheckerStarted - signal
1566
@dbus.service.signal(_interface, signature="s")
882
@dbus.service.signal(_interface, signature=u"s")
1567
883
def CheckerStarted(self, command):
1568
884
"D-Bus signal"
1569
885
pass
1570
886
1571
887
# PropertyChanged - signal
1572
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1573
@dbus.service.signal(_interface, signature="sv")
888
@dbus.service.signal(_interface, signature=u"sv")
1574
889
def PropertyChanged(self, property, value):
1575
890
"D-Bus signal"
1576
891
pass
1585
900
pass
1586
901
1587
902
# Rejected - signal
1588
@dbus.service.signal(_interface, signature="s")
903
@dbus.service.signal(_interface, signature=u"s")
1589
904
def Rejected(self, reason):
1590
905
"D-Bus signal"
1591
906
pass
1592
907
1593
908
# NeedApproval - signal
1594
@dbus.service.signal(_interface, signature="tb")
909
@dbus.service.signal(_interface, signature=u"tb")
1595
910
def NeedApproval(self, timeout, default):
1596
911
"D-Bus signal"
1597
912
return self.need_approval()
1599
914
## Methods
1600
915
1601
916
# Approve - method
1602
@dbus.service.method(_interface, in_signature="b")
917
@dbus.service.method(_interface, in_signature=u"b")
1603
918
def Approve(self, value):
1604
919
self.approve(value)
1605
920
1606
921
# CheckedOK - method
1607
922
@dbus.service.method(_interface)
1608
923
def CheckedOK(self):
1609
self.checked_ok()
924
return self.checked_ok()
1610
925
1611
926
# Enable - method
1612
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1613
927
@dbus.service.method(_interface)
1614
928
def Enable(self):
1615
929
"D-Bus method"
1616
930
self.enable()
1617
931
1618
932
# StartChecker - method
1619
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1620
933
@dbus.service.method(_interface)
1621
934
def StartChecker(self):
1622
935
"D-Bus method"
1623
936
self.start_checker()
1624
937
1625
938
# Disable - method
1626
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1627
939
@dbus.service.method(_interface)
1628
940
def Disable(self):
1629
941
"D-Bus method"
1630
942
self.disable()
1631
943
1632
944
# StopChecker - method
1633
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1634
945
@dbus.service.method(_interface)
1635
946
def StopChecker(self):
1636
947
self.stop_checker()
1638
949
## Properties
1639
950
1640
951
# ApprovalPending - property
1641
@dbus_service_property(_interface, signature="b", access="read")
952
@dbus_service_property(_interface, signature=u"b", access=u"read")
1642
953
def ApprovalPending_dbus_property(self):
1643
954
return dbus.Boolean(bool(self.approvals_pending))
1644
955
1645
956
# ApprovedByDefault - property
1646
@dbus_service_property(_interface,
1647
signature="b",
1648
access="readwrite")
957
@dbus_service_property(_interface, signature=u"b",
958
access=u"readwrite")
1649
959
def ApprovedByDefault_dbus_property(self, value=None):
1650
960
if value is None: # get
1651
961
return dbus.Boolean(self.approved_by_default)
1652
962
self.approved_by_default = bool(value)
963
# Emit D-Bus signal
964
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
965
dbus.Boolean(value, variant_level=1))
1653
966
1654
967
# ApprovalDelay - property
1655
@dbus_service_property(_interface,
1656
signature="t",
1657
access="readwrite")
968
@dbus_service_property(_interface, signature=u"t",
969
access=u"readwrite")
1658
970
def ApprovalDelay_dbus_property(self, value=None):
1659
971
if value is None: # get
1660
return dbus.UInt64(self.approval_delay.total_seconds()
1661
* 1000)
972
return dbus.UInt64(self.approval_delay_milliseconds())
1662
973
self.approval_delay = datetime.timedelta(0, 0, 0, value)
974
# Emit D-Bus signal
975
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
976
dbus.UInt64(value, variant_level=1))
1663
977
1664
978
# ApprovalDuration - property
1665
@dbus_service_property(_interface,
1666
signature="t",
1667
access="readwrite")
979
@dbus_service_property(_interface, signature=u"t",
980
access=u"readwrite")
1668
981
def ApprovalDuration_dbus_property(self, value=None):
1669
982
if value is None: # get
1670
return dbus.UInt64(self.approval_duration.total_seconds()
1671
* 1000)
983
return dbus.UInt64(self._timedelta_to_milliseconds(
984
self.approval_duration))
1672
985
self.approval_duration = datetime.timedelta(0, 0, 0, value)
986
# Emit D-Bus signal
987
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
988
dbus.UInt64(value, variant_level=1))
1673
989
1674
990
# Name - property
1675
@dbus_annotations(
1676
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1677
@dbus_service_property(_interface, signature="s", access="read")
991
@dbus_service_property(_interface, signature=u"s", access=u"read")
1678
992
def Name_dbus_property(self):
1679
993
return dbus.String(self.name)
1680
994
1681
995
# Fingerprint - property
1682
@dbus_annotations(
1683
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1684
@dbus_service_property(_interface, signature="s", access="read")
996
@dbus_service_property(_interface, signature=u"s", access=u"read")
1685
997
def Fingerprint_dbus_property(self):
1686
998
return dbus.String(self.fingerprint)
1687
999
1688
1000
# Host - property
1689
@dbus_service_property(_interface,
1690
signature="s",
1691
access="readwrite")
1001
@dbus_service_property(_interface, signature=u"s",
1002
access=u"readwrite")
1692
1003
def Host_dbus_property(self, value=None):
1693
1004
if value is None: # get
1694
1005
return dbus.String(self.host)
1695
self.host = str(value)
1006
self.host = value
1007
# Emit D-Bus signal
1008
self.PropertyChanged(dbus.String(u"Host"),
1009
dbus.String(value, variant_level=1))
1696
1010
1697
1011
# Created - property
1698
@dbus_annotations(
1699
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1700
@dbus_service_property(_interface, signature="s", access="read")
1012
@dbus_service_property(_interface, signature=u"s", access=u"read")
1701
1013
def Created_dbus_property(self):
1702
return datetime_to_dbus(self.created)
1014
return dbus.String(self._datetime_to_dbus(self.created))
1703
1015
1704
1016
# LastEnabled - property
1705
@dbus_service_property(_interface, signature="s", access="read")
1017
@dbus_service_property(_interface, signature=u"s", access=u"read")
1706
1018
def LastEnabled_dbus_property(self):
1707
return datetime_to_dbus(self.last_enabled)
1019
if self.last_enabled is None:
1020
return dbus.String(u"")
1021
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1708
1022
1709
1023
# Enabled - property
1710
@dbus_service_property(_interface,
1711
signature="b",
1712
access="readwrite")
1024
@dbus_service_property(_interface, signature=u"b",
1025
access=u"readwrite")
1713
1026
def Enabled_dbus_property(self, value=None):
1714
1027
if value is None: # get
1715
1028
return dbus.Boolean(self.enabled)
1719
1032
self.disable()
1720
1033
1721
1034
# LastCheckedOK - property
1722
@dbus_service_property(_interface,
1723
signature="s",
1724
access="readwrite")
1035
@dbus_service_property(_interface, signature=u"s",
1036
access=u"readwrite")
1725
1037
def LastCheckedOK_dbus_property(self, value=None):
1726
1038
if value is not None:
1727
1039
self.checked_ok()
1728
1040
return
1729
return datetime_to_dbus(self.last_checked_ok)
1730
1731
# LastCheckerStatus - property
1732
@dbus_service_property(_interface, signature="n", access="read")
1733
def LastCheckerStatus_dbus_property(self):
1734
return dbus.Int16(self.last_checker_status)
1735
1736
# Expires - property
1737
@dbus_service_property(_interface, signature="s", access="read")
1738
def Expires_dbus_property(self):
1739
return datetime_to_dbus(self.expires)
1041
if self.last_checked_ok is None:
1042
return dbus.String(u"")
1043
return dbus.String(self._datetime_to_dbus(self
1044
.last_checked_ok))
1740
1045
1741
1046
# LastApprovalRequest - property
1742
@dbus_service_property(_interface, signature="s", access="read")
1047
@dbus_service_property(_interface, signature=u"s", access=u"read")
1743
1048
def LastApprovalRequest_dbus_property(self):
1744
return datetime_to_dbus(self.last_approval_request)
1049
if self.last_approval_request is None:
1050
return dbus.String(u"")
1051
return dbus.String(self.
1052
_datetime_to_dbus(self
1053
.last_approval_request))
1745
1054
1746
1055
# Timeout - property
1747
@dbus_service_property(_interface,
1748
signature="t",
1749
access="readwrite")
1056
@dbus_service_property(_interface, signature=u"t",
1057
access=u"readwrite")
1750
1058
def Timeout_dbus_property(self, value=None):
1751
1059
if value is None: # get
1752
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1753
old_timeout = self.timeout
1060
return dbus.UInt64(self.timeout_milliseconds())
1754
1061
self.timeout = datetime.timedelta(0, 0, 0, value)
1755
# Reschedule disabling
1756
if self.enabled:
1757
now = datetime.datetime.utcnow()
1758
self.expires += self.timeout - old_timeout
1759
if self.expires <= now:
1760
# The timeout has passed
1761
self.disable()
1762
else:
1763
if (getattr(self, "disable_initiator_tag", None)
1764
is None):
1765
return
1766
gobject.source_remove(self.disable_initiator_tag)
1767
self.disable_initiator_tag = gobject.timeout_add(
1768
int((self.expires - now).total_seconds() * 1000),
1769
self.disable)
1770
1771
# ExtendedTimeout - property
1772
@dbus_service_property(_interface,
1773
signature="t",
1774
access="readwrite")
1775
def ExtendedTimeout_dbus_property(self, value=None):
1776
if value is None: # get
1777
return dbus.UInt64(self.extended_timeout.total_seconds()
1778
* 1000)
1779
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1062
# Emit D-Bus signal
1063
self.PropertyChanged(dbus.String(u"Timeout"),
1064
dbus.UInt64(value, variant_level=1))
1065
if getattr(self, u"disable_initiator_tag", None) is None:
1066
return
1067
# Reschedule timeout
1068
gobject.source_remove(self.disable_initiator_tag)
1069
self.disable_initiator_tag = None
1070
time_to_die = (self.
1071
_timedelta_to_milliseconds((self
1072
.last_checked_ok
1073
+ self.timeout)
1074
- datetime.datetime
1075
.utcnow()))
1076
if time_to_die <= 0:
1077
# The timeout has passed
1078
self.disable()
1079
else:
1080
self.disable_initiator_tag = (gobject.timeout_add
1081
(time_to_die, self.disable))
1780
1082
1781
1083
# Interval - property
1782
@dbus_service_property(_interface,
1783
signature="t",
1784
access="readwrite")
1084
@dbus_service_property(_interface, signature=u"t",
1085
access=u"readwrite")
1785
1086
def Interval_dbus_property(self, value=None):
1786
1087
if value is None: # get
1787
return dbus.UInt64(self.interval.total_seconds() * 1000)
1088
return dbus.UInt64(self.interval_milliseconds())
1788
1089
self.interval = datetime.timedelta(0, 0, 0, value)
1789
if getattr(self, "checker_initiator_tag", None) is None:
1090
# Emit D-Bus signal
1091
self.PropertyChanged(dbus.String(u"Interval"),
1092
dbus.UInt64(value, variant_level=1))
1093
if getattr(self, u"checker_initiator_tag", None) is None:
1790
1094
return
1791
if self.enabled:
1792
# Reschedule checker run
1793
gobject.source_remove(self.checker_initiator_tag)
1794
self.checker_initiator_tag = gobject.timeout_add(
1795
value, self.start_checker)
1796
self.start_checker() # Start one now, too
1797
1095
# Reschedule checker run
1096
gobject.source_remove(self.checker_initiator_tag)
1097
self.checker_initiator_tag = (gobject.timeout_add
1098
(value, self.start_checker))
1099
self.start_checker() # Start one now, too
1100
1798
1101
# Checker - property
1799
@dbus_service_property(_interface,
1800
signature="s",
1801
access="readwrite")
1102
@dbus_service_property(_interface, signature=u"s",
1103
access=u"readwrite")
1802
1104
def Checker_dbus_property(self, value=None):
1803
1105
if value is None: # get
1804
1106
return dbus.String(self.checker_command)
1805
self.checker_command = str(value)
1107
self.checker_command = value
1108
# Emit D-Bus signal
1109
self.PropertyChanged(dbus.String(u"Checker"),
1110
dbus.String(self.checker_command,
1111
variant_level=1))
1806
1112
1807
1113
# CheckerRunning - property
1808
@dbus_service_property(_interface,
1809
signature="b",
1810
access="readwrite")
1114
@dbus_service_property(_interface, signature=u"b",
1115
access=u"readwrite")
1811
1116
def CheckerRunning_dbus_property(self, value=None):
1812
1117
if value is None: # get
1813
1118
return dbus.Boolean(self.checker is not None)
1817
1122
self.stop_checker()
1818
1123
1819
1124
# ObjectPath - property
1820
@dbus_annotations(
1821
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
1822
"org.freedesktop.DBus.Deprecated": "true"})
1823
@dbus_service_property(_interface, signature="o", access="read")
1125
@dbus_service_property(_interface, signature=u"o", access=u"read")
1824
1126
def ObjectPath_dbus_property(self):
1825
1127
return self.dbus_object_path # is already a dbus.ObjectPath
1826
1128
1827
1129
# Secret = property
1828
@dbus_annotations(
1829
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
1830
"invalidates"})
1831
@dbus_service_property(_interface,
1832
signature="ay",
1833
access="write",
1834
byte_arrays=True)
1130
@dbus_service_property(_interface, signature=u"ay",
1131
access=u"write", byte_arrays=True)
1835
1132
def Secret_dbus_property(self, value):
1836
self.secret = bytes(value)
1133
self.secret = str(value)
1837
1134
1838
1135
del _interface
1839
1136
1843
1140
self._pipe = child_pipe
1844
1141
self._pipe.send(('init', fpr, address))
1845
1142
if not self._pipe.recv():
1846
raise KeyError(fpr)
1847
1143
raise KeyError()
1144
1848
1145
def __getattribute__(self, name):
1849
if name == '_pipe':
1146
if(name == '_pipe'):
1850
1147
return super(ProxyClient, self).__getattribute__(name)
1851
1148
self._pipe.send(('getattr', name))
1852
1149
data = self._pipe.recv()
1853
1150
if data[0] == 'data':
1854
1151
return data[1]
1855
1152
if data[0] == 'function':
1856
1857
1153
def func(*args, **kwargs):
1858
1154
self._pipe.send(('funcall', name, args, kwargs))
1859
1155
return self._pipe.recv()[1]
1860
1861
1156
return func
1862
1157
1863
1158
def __setattr__(self, name, value):
1864
if name == '_pipe':
1159
if(name == '_pipe'):
1865
1160
return super(ProxyClient, self).__setattr__(name, value)
1866
1161
self._pipe.send(('setattr', name, value))
1867
1162
1874
1169
1875
1170
def handle(self):
1876
1171
with contextlib.closing(self.server.child_pipe) as child_pipe:
1877
logger.info("TCP connection from: %s",
1878
str(self.client_address))
1879
logger.debug("Pipe FD: %d",
1172
logger.info(u"TCP connection from: %s",
1173
unicode(self.client_address))
1174
logger.debug(u"Pipe FD: %d",
1880
1175
self.server.child_pipe.fileno())
1881
1882
session = gnutls.connection.ClientSession(
1883
self.request, gnutls.connection.X509Credentials())
1884
1176
1177
session = (gnutls.connection
1178
.ClientSession(self.request,
1179
gnutls.connection
1180
.X509Credentials()))
1181
1885
1182
# Note: gnutls.connection.X509Credentials is really a
1886
1183
# generic GnuTLS certificate credentials object so long as
1887
1184
# no X.509 keys are added to it. Therefore, we can use it
1888
1185
# here despite using OpenPGP certificates.
1889
1890
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1891
# "+AES-256-CBC", "+SHA1",
1892
# "+COMP-NULL", "+CTYPE-OPENPGP",
1893
# "+DHE-DSS"))
1186
1187
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1188
# u"+AES-256-CBC", u"+SHA1",
1189
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1190
# u"+DHE-DSS"))
1894
1191
# Use a fallback default, since this MUST be set.
1895
1192
priority = self.server.gnutls_priority
1896
1193
if priority is None:
1897
priority = "NORMAL"
1898
gnutls.library.functions.gnutls_priority_set_direct(
1899
session._c_object, priority, None)
1900
1194
priority = u"NORMAL"
1195
(gnutls.library.functions
1196
.gnutls_priority_set_direct(session._c_object,
1197
priority, None))
1198
1901
1199
# Start communication using the Mandos protocol
1902
1200
# Get protocol number
1903
1201
line = self.request.makefile().readline()
1904
logger.debug("Protocol version: %r", line)
1202
logger.debug(u"Protocol version: %r", line)
1905
1203
try:
1906
1204
if int(line.strip().split()[0]) > 1:
1907
raise RuntimeError(line)
1908
except (ValueError, IndexError, RuntimeError) as error:
1909
logger.error("Unknown protocol version: %s", error)
1205
raise RuntimeError
1206
except (ValueError, IndexError, RuntimeError), error:
1207
logger.error(u"Unknown protocol version: %s", error)
1910
1208
return
1911
1209
1912
1210
# Start GnuTLS connection
1913
1211
try:
1914
1212
session.handshake()
1915
except gnutls.errors.GNUTLSError as error:
1916
logger.warning("Handshake failed: %s", error)
1213
except gnutls.errors.GNUTLSError, error:
1214
logger.warning(u"Handshake failed: %s", error)
1917
1215
# Do not run session.bye() here: the session is not
1918
1216
# established. Just abandon the request.
1919
1217
return
1920
logger.debug("Handshake succeeded")
1921
1218
logger.debug(u"Handshake succeeded")
1219
1922
1220
approval_required = False
1923
1221
try:
1924
1222
try:
1925
fpr = self.fingerprint(
1926
self.peer_certificate(session))
1927
except (TypeError,
1928
gnutls.errors.GNUTLSError) as error:
1929
logger.warning("Bad certificate: %s", error)
1223
fpr = self.fingerprint(self.peer_certificate
1224
(session))
1225
except (TypeError, gnutls.errors.GNUTLSError), error:
1226
logger.warning(u"Bad certificate: %s", error)
1930
1227
return
1931
logger.debug("Fingerprint: %s", fpr)
1932
1228
logger.debug(u"Fingerprint: %s", fpr)
1229
1933
1230
try:
1934
1231
client = ProxyClient(child_pipe, fpr,
1935
1232
self.client_address)
1943
1240
1944
1241
while True:
1945
1242
if not client.enabled:
1946
logger.info("Client %s is disabled",
1947
client.name)
1243
logger.warning(u"Client %s is disabled",
1244
client.name)
1948
1245
if self.server.use_dbus:
1949
1246
# Emit D-Bus signal
1950
client.Rejected("Disabled")
1247
client.Rejected("Disabled")
1951
1248
return
1952
1249
1953
if client.approved or not client.approval_delay:
1250
if client._approved or not client.approval_delay:
1954
1251
#We are approved or approval is disabled
1955
1252
break
1956
elif client.approved is None:
1957
logger.info("Client %s needs approval",
1253
elif client._approved is None:
1254
logger.info(u"Client %s needs approval",
1958
1255
client.name)
1959
1256
if self.server.use_dbus:
1960
1257
# Emit D-Bus signal
1961
1258
client.NeedApproval(
1962
client.approval_delay.total_seconds()
1963
* 1000, client.approved_by_default)
1259
client.approval_delay_milliseconds(),
1260
client.approved_by_default)
1964
1261
else:
1965
logger.warning("Client %s was not approved",
1262
logger.warning(u"Client %s was not approved",
1966
1263
client.name)
1967
1264
if self.server.use_dbus:
1968
1265
# Emit D-Bus signal
1970
1267
return
1971
1268
1972
1269
#wait until timeout or approved
1270
#x = float(client._timedelta_to_milliseconds(delay))
1973
1271
time = datetime.datetime.now()
1974
1272
client.changedstate.acquire()
1975
client.changedstate.wait(delay.total_seconds())
1273
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1976
1274
client.changedstate.release()
1977
1275
time2 = datetime.datetime.now()
1978
1276
if (time2 - time) >= delay:
1993
1291
while sent_size < len(client.secret):
1994
1292
try:
1995
1293
sent = session.send(client.secret[sent_size:])
1996
except gnutls.errors.GNUTLSError as error:
1997
logger.warning("gnutls send failed",
1998
exc_info=error)
1294
except (gnutls.errors.GNUTLSError), error:
1295
logger.warning("gnutls send failed")
1999
1296
return
2000
logger.debug("Sent: %d, remaining: %d", sent,
2001
len(client.secret) - (sent_size
2002
+ sent))
1297
logger.debug(u"Sent: %d, remaining: %d",
1298
sent, len(client.secret)
1299
- (sent_size + sent))
2003
1300
sent_size += sent
2004
2005
logger.info("Sending secret to %s", client.name)
2006
# bump the timeout using extended_timeout
2007
client.bump_timeout(client.extended_timeout)
1301
1302
logger.info(u"Sending secret to %s", client.name)
1303
# bump the timeout as if seen
1304
client.checked_ok()
2008
1305
if self.server.use_dbus:
2009
1306
# Emit D-Bus signal
2010
1307
client.GotSecret()
2014
1311
client.approvals_pending -= 1
2015
1312
try:
2016
1313
session.bye()
2017
except gnutls.errors.GNUTLSError as error:
2018
logger.warning("GnuTLS bye failed",
2019
exc_info=error)
1314
except (gnutls.errors.GNUTLSError), error:
1315
logger.warning("GnuTLS bye failed")
2020
1316
2021
1317
@staticmethod
2022
1318
def peer_certificate(session):
2023
1319
"Return the peer's OpenPGP certificate as a bytestring"
2024
1320
# If not an OpenPGP certificate...
2025
if (gnutls.library.functions.gnutls_certificate_type_get(
2026
session._c_object)
1321
if (gnutls.library.functions
1322
.gnutls_certificate_type_get(session._c_object)
2027
1323
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
2028
1324
# ...do the normal thing
2029
1325
return session.peer_certificate
2032
1328
.gnutls_certificate_get_peers
2033
1329
(session._c_object, ctypes.byref(list_size)))
2034
1330
if not bool(cert_list) and list_size.value != 0:
2035
raise gnutls.errors.GNUTLSError("error getting peer"
2036
" certificate")
1331
raise gnutls.errors.GNUTLSError(u"error getting peer"
1332
u" certificate")
2037
1333
if list_size.value == 0:
2038
1334
return None
2039
1335
cert = cert_list[0]
2043
1339
def fingerprint(openpgp):
2044
1340
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2045
1341
# New GnuTLS "datum" with the OpenPGP public key
2046
datum = gnutls.library.types.gnutls_datum_t(
2047
ctypes.cast(ctypes.c_char_p(openpgp),
2048
ctypes.POINTER(ctypes.c_ubyte)),
2049
ctypes.c_uint(len(openpgp)))
1342
datum = (gnutls.library.types
1343
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1344
ctypes.POINTER
1345
(ctypes.c_ubyte)),
1346
ctypes.c_uint(len(openpgp))))
2050
1347
# New empty GnuTLS certificate
2051
1348
crt = gnutls.library.types.gnutls_openpgp_crt_t()
2052
gnutls.library.functions.gnutls_openpgp_crt_init(
2053
ctypes.byref(crt))
1349
(gnutls.library.functions
1350
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2054
1351
# Import the OpenPGP public key into the certificate
2055
gnutls.library.functions.gnutls_openpgp_crt_import(
2056
crt, ctypes.byref(datum),
2057
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1352
(gnutls.library.functions
1353
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1354
gnutls.library.constants
1355
.GNUTLS_OPENPGP_FMT_RAW))
2058
1356
# Verify the self signature in the key
2059
1357
crtverify = ctypes.c_uint()
2060
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
2061
crt, 0, ctypes.byref(crtverify))
1358
(gnutls.library.functions
1359
.gnutls_openpgp_crt_verify_self(crt, 0,
1360
ctypes.byref(crtverify)))
2062
1361
if crtverify.value != 0:
2063
1362
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2064
raise gnutls.errors.CertificateSecurityError(
2065
"Verify failed")
1363
raise (gnutls.errors.CertificateSecurityError
1364
(u"Verify failed"))
2066
1365
# New buffer for the fingerprint
2067
1366
buf = ctypes.create_string_buffer(20)
2068
1367
buf_len = ctypes.c_size_t()
2069
1368
# Get the fingerprint from the certificate into the buffer
2070
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
2071
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1369
(gnutls.library.functions
1370
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1371
ctypes.byref(buf_len)))
2072
1372
# Deinit the certificate
2073
1373
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2074
1374
# Convert the buffer to a Python bytestring
2075
1375
fpr = ctypes.string_at(buf, buf_len.value)
2076
1376
# Convert the bytestring to hexadecimal notation
2077
hex_fpr = binascii.hexlify(fpr).upper()
1377
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
2078
1378
return hex_fpr
2079
1379
2080
1380
2081
1381
class MultiprocessingMixIn(object):
2082
1382
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2083
2084
1383
def sub_process_main(self, request, address):
2085
1384
try:
2086
1385
self.finish_request(request, address)
2087
except Exception:
1386
except:
2088
1387
self.handle_error(request, address)
2089
1388
self.close_request(request)
2090
1389
2091
1390
def process_request(self, request, address):
2092
1391
"""Start a new process to process the request."""
2093
proc = multiprocessing.Process(target = self.sub_process_main,
2094
args = (request, address))
2095
proc.start()
2096
return proc
2097
1392
multiprocessing.Process(target = self.sub_process_main,
1393
args = (request, address)).start()
2098
1394
2099
1395
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2100
1396
""" adds a pipe to the MixIn """
2101
2102
1397
def process_request(self, request, client_address):
2103
1398
"""Overrides and wraps the original process_request().
2104
1399
2105
1400
This function creates a new pipe in self.pipe
2106
1401
"""
2107
1402
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2108
2109
proc = MultiprocessingMixIn.process_request(self, request,
2110
client_address)
1403
1404
super(MultiprocessingMixInWithPipe,
1405
self).process_request(request, client_address)
2111
1406
self.child_pipe.close()
2112
self.add_pipe(parent_pipe, proc)
2113
2114
def add_pipe(self, parent_pipe, proc):
1407
self.add_pipe(parent_pipe)
1408
1409
def add_pipe(self, parent_pipe):
2115
1410
"""Dummy function; override as necessary"""
2116
raise NotImplementedError()
2117
1411
pass
2118
1412
2119
1413
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2120
1414
socketserver.TCPServer, object):
2125
1419
interface: None or a network interface name (string)
2126
1420
use_ipv6: Boolean; to use IPv6 or not
2127
1421
"""
2128
2129
1422
def __init__(self, server_address, RequestHandlerClass,
2130
interface=None,
2131
use_ipv6=True,
2132
socketfd=None):
2133
"""If socketfd is set, use that file descriptor instead of
2134
creating a new one with socket.socket().
2135
"""
1423
interface=None, use_ipv6=True):
2136
1424
self.interface = interface
2137
1425
if use_ipv6:
2138
1426
self.address_family = socket.AF_INET6
2139
if socketfd is not None:
2140
# Save the file descriptor
2141
self.socketfd = socketfd
2142
# Save the original socket.socket() function
2143
self.socket_socket = socket.socket
2144
# To implement --socket, we monkey patch socket.socket.
2145
#
2146
# (When socketserver.TCPServer is a new-style class, we
2147
# could make self.socket into a property instead of monkey
2148
# patching socket.socket.)
2149
#
2150
# Create a one-time-only replacement for socket.socket()
2151
@functools.wraps(socket.socket)
2152
def socket_wrapper(*args, **kwargs):
2153
# Restore original function so subsequent calls are
2154
# not affected.
2155
socket.socket = self.socket_socket
2156
del self.socket_socket
2157
# This time only, return a new socket object from the
2158
# saved file descriptor.
2159
return socket.fromfd(self.socketfd, *args, **kwargs)
2160
# Replace socket.socket() function with wrapper
2161
socket.socket = socket_wrapper
2162
# The socketserver.TCPServer.__init__ will call
2163
# socket.socket(), which might be our replacement,
2164
# socket_wrapper(), if socketfd was set.
2165
1427
socketserver.TCPServer.__init__(self, server_address,
2166
1428
RequestHandlerClass)
2167
2168
1429
def server_bind(self):
2169
1430
"""This overrides the normal server_bind() function
2170
1431
to bind to an interface if one was specified, and also NOT to
2171
1432
bind to an address or port if they were not specified."""
2172
1433
if self.interface is not None:
2173
1434
if SO_BINDTODEVICE is None:
2174
logger.error("SO_BINDTODEVICE does not exist;"
2175
" cannot bind to interface %s",
1435
logger.error(u"SO_BINDTODEVICE does not exist;"
1436
u" cannot bind to interface %s",
2176
1437
self.interface)
2177
1438
else:
2178
1439
try:
2179
self.socket.setsockopt(
2180
socket.SOL_SOCKET, SO_BINDTODEVICE,
2181
(self.interface + "\0").encode("utf-8"))
2182
except socket.error as error:
2183
if error.errno == errno.EPERM:
2184
logger.error("No permission to bind to"
2185
" interface %s", self.interface)
2186
elif error.errno == errno.ENOPROTOOPT:
2187
logger.error("SO_BINDTODEVICE not available;"
2188
" cannot bind to interface %s",
2189
self.interface)
2190
elif error.errno == errno.ENODEV:
2191
logger.error("Interface %s does not exist,"
2192
" cannot bind", self.interface)
1440
self.socket.setsockopt(socket.SOL_SOCKET,
1441
SO_BINDTODEVICE,
1442
str(self.interface
1443
+ u'\0'))
1444
except socket.error, error:
1445
if error[0] == errno.EPERM:
1446
logger.error(u"No permission to"
1447
u" bind to interface %s",
1448
self.interface)
1449
elif error[0] == errno.ENOPROTOOPT:
1450
logger.error(u"SO_BINDTODEVICE not available;"
1451
u" cannot bind to interface %s",
1452
self.interface)
2193
1453
else:
2194
1454
raise
2195
1455
# Only bind(2) the socket if we really need to.
2196
1456
if self.server_address[0] or self.server_address[1]:
2197
1457
if not self.server_address[0]:
2198
1458
if self.address_family == socket.AF_INET6:
2199
any_address = "::" # in6addr_any
1459
any_address = u"::" # in6addr_any
2200
1460
else:
2201
any_address = "0.0.0.0" # INADDR_ANY
1461
any_address = socket.INADDR_ANY
2202
1462
self.server_address = (any_address,
2203
1463
self.server_address[1])
2204
1464
elif not self.server_address[1]:
2205
self.server_address = (self.server_address[0], 0)
1465
self.server_address = (self.server_address[0],
1466
0)
2206
1467
# if self.interface:
2207
1468
# self.server_address = (self.server_address[0],
2208
1469
# 0, # port
2222
1483
2223
1484
Assumes a gobject.MainLoop event loop.
2224
1485
"""
2225
2226
1486
def __init__(self, server_address, RequestHandlerClass,
2227
interface=None,
2228
use_ipv6=True,
2229
clients=None,
2230
gnutls_priority=None,
2231
use_dbus=True,
2232
socketfd=None):
1487
interface=None, use_ipv6=True, clients=None,
1488
gnutls_priority=None, use_dbus=True):
2233
1489
self.enabled = False
2234
1490
self.clients = clients
2235
1491
if self.clients is None:
2236
self.clients = {}
1492
self.clients = set()
2237
1493
self.use_dbus = use_dbus
2238
1494
self.gnutls_priority = gnutls_priority
2239
1495
IPv6_TCPServer.__init__(self, server_address,
2240
1496
RequestHandlerClass,
2241
1497
interface = interface,
2242
use_ipv6 = use_ipv6,
2243
socketfd = socketfd)
2244
1498
use_ipv6 = use_ipv6)
2245
1499
def server_activate(self):
2246
1500
if self.enabled:
2247
1501
return socketserver.TCPServer.server_activate(self)
2248
2249
1502
def enable(self):
2250
1503
self.enabled = True
2251
2252
def add_pipe(self, parent_pipe, proc):
1504
def add_pipe(self, parent_pipe):
2253
1505
# Call "handle_ipc" for both data and EOF events
2254
gobject.io_add_watch(
2255
parent_pipe.fileno(),
2256
gobject.IO_IN | gobject.IO_HUP,
2257
functools.partial(self.handle_ipc,
2258
parent_pipe = parent_pipe,
2259
proc = proc))
2260
2261
def handle_ipc(self, source, condition,
2262
parent_pipe=None,
2263
proc = None,
1506
gobject.io_add_watch(parent_pipe.fileno(),
1507
gobject.IO_IN | gobject.IO_HUP,
1508
functools.partial(self.handle_ipc,
1509
parent_pipe = parent_pipe))
1510
1511
def handle_ipc(self, source, condition, parent_pipe=None,
2264
1512
client_object=None):
2265
# error, or the other end of multiprocessing.Pipe has closed
2266
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2267
# Wait for other process to exit
2268
proc.join()
1513
condition_names = {
1514
gobject.IO_IN: u"IN", # There is data to read.
1515
gobject.IO_OUT: u"OUT", # Data can be written (without
1516
# blocking).
1517
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1518
gobject.IO_ERR: u"ERR", # Error condition.
1519
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1520
# broken, usually for pipes and
1521
# sockets).
1522
}
1523
conditions_string = ' | '.join(name
1524
for cond, name in
1525
condition_names.iteritems()
1526
if cond & condition)
1527
# error or the other end of multiprocessing.Pipe has closed
1528
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2269
1529
return False
2270
1530
2271
1531
# Read a request from the child
2276
1536
fpr = request[1]
2277
1537
address = request[2]
2278
1538
2279
for c in self.clients.itervalues():
1539
for c in self.clients:
2280
1540
if c.fingerprint == fpr:
2281
1541
client = c
2282
1542
break
2283
1543
else:
2284
logger.info("Client not found for fingerprint: %s, ad"
2285
"dress: %s", fpr, address)
1544
logger.warning(u"Client not found for fingerprint: %s, ad"
1545
u"dress: %s", fpr, address)
2286
1546
if self.use_dbus:
2287
1547
# Emit D-Bus signal
2288
mandos_dbus_service.ClientNotFound(fpr,
2289
address[0])
1548
mandos_dbus_service.ClientNotFound(fpr, address[0])
2290
1549
parent_pipe.send(False)
2291
1550
return False
2292
1551
2293
gobject.io_add_watch(
2294
parent_pipe.fileno(),
2295
gobject.IO_IN | gobject.IO_HUP,
2296
functools.partial(self.handle_ipc,
2297
parent_pipe = parent_pipe,
2298
proc = proc,
2299
client_object = client))
1552
gobject.io_add_watch(parent_pipe.fileno(),
1553
gobject.IO_IN | gobject.IO_HUP,
1554
functools.partial(self.handle_ipc,
1555
parent_pipe = parent_pipe,
1556
client_object = client))
2300
1557
parent_pipe.send(True)
2301
# remove the old hook in favor of the new above hook on
2302
# same fileno
1558
# remove the old hook in favor of the new above hook on same fileno
2303
1559
return False
2304
1560
if command == 'funcall':
2305
1561
funcname = request[1]
2306
1562
args = request[2]
2307
1563
kwargs = request[3]
2308
1564
2309
parent_pipe.send(('data', getattr(client_object,
2310
funcname)(*args,
2311
**kwargs)))
2312
1565
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1566
2313
1567
if command == 'getattr':
2314
1568
attrname = request[1]
2315
if isinstance(client_object.__getattribute__(attrname),
2316
collections.Callable):
2317
parent_pipe.send(('function', ))
1569
if callable(client_object.__getattribute__(attrname)):
1570
parent_pipe.send(('function',))
2318
1571
else:
2319
parent_pipe.send((
2320
'data', client_object.__getattribute__(attrname)))
1572
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2321
1573
2322
1574
if command == 'setattr':
2323
1575
attrname = request[1]
2324
1576
value = request[2]
2325
1577
setattr(client_object, attrname, value)
2326
1578
2327
1579
return True
2328
1580
2329
1581
2330
def rfc3339_duration_to_delta(duration):
2331
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2332
2333
>>> rfc3339_duration_to_delta("P7D")
2334
datetime.timedelta(7)
2335
>>> rfc3339_duration_to_delta("PT60S")
2336
datetime.timedelta(0, 60)
2337
>>> rfc3339_duration_to_delta("PT60M")
2338
datetime.timedelta(0, 3600)
2339
>>> rfc3339_duration_to_delta("PT24H")
2340
datetime.timedelta(1)
2341
>>> rfc3339_duration_to_delta("P1W")
2342
datetime.timedelta(7)
2343
>>> rfc3339_duration_to_delta("PT5M30S")
2344
datetime.timedelta(0, 330)
2345
>>> rfc3339_duration_to_delta("P1DT3M20S")
2346
datetime.timedelta(1, 200)
2347
"""
2348
2349
# Parsing an RFC 3339 duration with regular expressions is not
2350
# possible - there would have to be multiple places for the same
2351
# values, like seconds. The current code, while more esoteric, is
2352
# cleaner without depending on a parsing library. If Python had a
2353
# built-in library for parsing we would use it, but we'd like to
2354
# avoid excessive use of external libraries.
2355
2356
# New type for defining tokens, syntax, and semantics all-in-one
2357
Token = collections.namedtuple("Token", (
2358
"regexp", # To match token; if "value" is not None, must have
2359
# a "group" containing digits
2360
"value", # datetime.timedelta or None
2361
"followers")) # Tokens valid after this token
2362
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2363
# the "duration" ABNF definition in RFC 3339, Appendix A.
2364
token_end = Token(re.compile(r"$"), None, frozenset())
2365
token_second = Token(re.compile(r"(\d+)S"),
2366
datetime.timedelta(seconds=1),
2367
frozenset((token_end, )))
2368
token_minute = Token(re.compile(r"(\d+)M"),
2369
datetime.timedelta(minutes=1),
2370
frozenset((token_second, token_end)))
2371
token_hour = Token(re.compile(r"(\d+)H"),
2372
datetime.timedelta(hours=1),
2373
frozenset((token_minute, token_end)))
2374
token_time = Token(re.compile(r"T"),
2375
None,
2376
frozenset((token_hour, token_minute,
2377
token_second)))
2378
token_day = Token(re.compile(r"(\d+)D"),
2379
datetime.timedelta(days=1),
2380
frozenset((token_time, token_end)))
2381
token_month = Token(re.compile(r"(\d+)M"),
2382
datetime.timedelta(weeks=4),
2383
frozenset((token_day, token_end)))
2384
token_year = Token(re.compile(r"(\d+)Y"),
2385
datetime.timedelta(weeks=52),
2386
frozenset((token_month, token_end)))
2387
token_week = Token(re.compile(r"(\d+)W"),
2388
datetime.timedelta(weeks=1),
2389
frozenset((token_end, )))
2390
token_duration = Token(re.compile(r"P"), None,
2391
frozenset((token_year, token_month,
2392
token_day, token_time,
2393
token_week)))
2394
# Define starting values
2395
value = datetime.timedelta() # Value so far
2396
found_token = None
2397
followers = frozenset((token_duration, )) # Following valid tokens
2398
s = duration # String left to parse
2399
# Loop until end token is found
2400
while found_token is not token_end:
2401
# Search for any currently valid tokens
2402
for token in followers:
2403
match = token.regexp.match(s)
2404
if match is not None:
2405
# Token found
2406
if token.value is not None:
2407
# Value found, parse digits
2408
factor = int(match.group(1), 10)
2409
# Add to value so far
2410
value += factor * token.value
2411
# Strip token from string
2412
s = token.regexp.sub("", s, 1)
2413
# Go to found token
2414
found_token = token
2415
# Set valid next tokens
2416
followers = found_token.followers
2417
break
2418
else:
2419
# No currently valid tokens were found
2420
raise ValueError("Invalid RFC 3339 duration: {!r}"
2421
.format(duration))
2422
# End token found
2423
return value
2424
2425
2426
1582
def string_to_delta(interval):
2427
1583
"""Parse a string and return a datetime.timedelta
2428
1584
2429
>>> string_to_delta('7d')
1585
>>> string_to_delta(u'7d')
2430
1586
datetime.timedelta(7)
2431
>>> string_to_delta('60s')
1587
>>> string_to_delta(u'60s')
2432
1588
datetime.timedelta(0, 60)
2433
>>> string_to_delta('60m')
1589
>>> string_to_delta(u'60m')
2434
1590
datetime.timedelta(0, 3600)
2435
>>> string_to_delta('24h')
1591
>>> string_to_delta(u'24h')
2436
1592
datetime.timedelta(1)
2437
>>> string_to_delta('1w')
1593
>>> string_to_delta(u'1w')
2438
1594
datetime.timedelta(7)
2439
>>> string_to_delta('5m 30s')
1595
>>> string_to_delta(u'5m 30s')
2440
1596
datetime.timedelta(0, 330)
2441
1597
"""
2442
2443
try:
2444
return rfc3339_duration_to_delta(interval)
2445
except ValueError:
2446
pass
2447
2448
1598
timevalue = datetime.timedelta(0)
2449
1599
for s in interval.split():
2450
1600
try:
2451
suffix = s[-1]
1601
suffix = unicode(s[-1])
2452
1602
value = int(s[:-1])
2453
if suffix == "d":
1603
if suffix == u"d":
2454
1604
delta = datetime.timedelta(value)
2455
elif suffix == "s":
1605
elif suffix == u"s":
2456
1606
delta = datetime.timedelta(0, value)
2457
elif suffix == "m":
1607
elif suffix == u"m":
2458
1608
delta = datetime.timedelta(0, 0, 0, 0, value)
2459
elif suffix == "h":
1609
elif suffix == u"h":
2460
1610
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
2461
elif suffix == "w":
1611
elif suffix == u"w":
2462
1612
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2463
1613
else:
2464
raise ValueError("Unknown suffix {!r}".format(suffix))
2465
except IndexError as e:
2466
raise ValueError(*(e.args))
1614
raise ValueError(u"Unknown suffix %r" % suffix)
1615
except (ValueError, IndexError), e:
1616
raise ValueError(e.message)
2467
1617
timevalue += delta
2468
1618
return timevalue
2469
1619
2470
1620
1621
def if_nametoindex(interface):
1622
"""Call the C function if_nametoindex(), or equivalent
1623
1624
Note: This function cannot accept a unicode string."""
1625
global if_nametoindex
1626
try:
1627
if_nametoindex = (ctypes.cdll.LoadLibrary
1628
(ctypes.util.find_library(u"c"))
1629
.if_nametoindex)
1630
except (OSError, AttributeError):
1631
logger.warning(u"Doing if_nametoindex the hard way")
1632
def if_nametoindex(interface):
1633
"Get an interface index the hard way, i.e. using fcntl()"
1634
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1635
with contextlib.closing(socket.socket()) as s:
1636
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1637
struct.pack(str(u"16s16x"),
1638
interface))
1639
interface_index = struct.unpack(str(u"I"),
1640
ifreq[16:20])[0]
1641
return interface_index
1642
return if_nametoindex(interface)
1643
1644
2471
1645
def daemon(nochdir = False, noclose = False):
2472
1646
"""See daemon(3). Standard BSD Unix function.
2473
1647
2476
1650
sys.exit()
2477
1651
os.setsid()
2478
1652
if not nochdir:
2479
os.chdir("/")
1653
os.chdir(u"/")
2480
1654
if os.fork():
2481
1655
sys.exit()
2482
1656
if not noclose:
2483
1657
# Close all standard open file descriptors
2484
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1658
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2485
1659
if not stat.S_ISCHR(os.fstat(null).st_mode):
2486
1660
raise OSError(errno.ENODEV,
2487
"{} not a character device"
2488
.format(os.devnull))
1661
u"%s not a character device"
1662
% os.path.devnull)
2489
1663
os.dup2(null, sys.stdin.fileno())
2490
1664
os.dup2(null, sys.stdout.fileno())
2491
1665
os.dup2(null, sys.stderr.fileno())
2498
1672
##################################################################
2499
1673
# Parsing of options, both command line and config file
2500
1674
2501
parser = argparse.ArgumentParser()
2502
parser.add_argument("-v", "--version", action="version",
2503
version = "%(prog)s {}".format(version),
2504
help="show version number and exit")
2505
parser.add_argument("-i", "--interface", metavar="IF",
2506
help="Bind to interface IF")
2507
parser.add_argument("-a", "--address",
2508
help="Address to listen for requests on")
2509
parser.add_argument("-p", "--port", type=int,
2510
help="Port number to receive requests on")
2511
parser.add_argument("--check", action="store_true",
2512
help="Run self-test")
2513
parser.add_argument("--debug", action="store_true",
2514
help="Debug mode; run in foreground and log"
2515
" to terminal", default=None)
2516
parser.add_argument("--debuglevel", metavar="LEVEL",
2517
help="Debug level for stdout output")
2518
parser.add_argument("--priority", help="GnuTLS"
2519
" priority string (see GnuTLS documentation)")
2520
parser.add_argument("--servicename",
2521
metavar="NAME", help="Zeroconf service name")
2522
parser.add_argument("--configdir",
2523
default="/etc/mandos", metavar="DIR",
2524
help="Directory to search for configuration"
2525
" files")
2526
parser.add_argument("--no-dbus", action="store_false",
2527
dest="use_dbus", help="Do not provide D-Bus"
2528
" system bus interface", default=None)
2529
parser.add_argument("--no-ipv6", action="store_false",
2530
dest="use_ipv6", help="Do not use IPv6",
2531
default=None)
2532
parser.add_argument("--no-restore", action="store_false",
2533
dest="restore", help="Do not restore stored"
2534
" state", default=None)
2535
parser.add_argument("--socket", type=int,
2536
help="Specify a file descriptor to a network"
2537
" socket to use instead of creating one")
2538
parser.add_argument("--statedir", metavar="DIR",
2539
help="Directory to save/restore state in")
2540
parser.add_argument("--foreground", action="store_true",
2541
help="Run in foreground", default=None)
2542
parser.add_argument("--no-zeroconf", action="store_false",
2543
dest="zeroconf", help="Do not use Zeroconf",
2544
default=None)
2545
2546
options = parser.parse_args()
1675
parser = optparse.OptionParser(version = "%%prog %s" % version)
1676
parser.add_option("-i", u"--interface", type=u"string",
1677
metavar="IF", help=u"Bind to interface IF")
1678
parser.add_option("-a", u"--address", type=u"string",
1679
help=u"Address to listen for requests on")
1680
parser.add_option("-p", u"--port", type=u"int",
1681
help=u"Port number to receive requests on")
1682
parser.add_option("--check", action=u"store_true",
1683
help=u"Run self-test")
1684
parser.add_option("--debug", action=u"store_true",
1685
help=u"Debug mode; run in foreground and log to"
1686
u" terminal")
1687
parser.add_option("--debuglevel", type=u"string", metavar="LEVEL",
1688
help=u"Debug level for stdout output")
1689
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1690
u" priority string (see GnuTLS documentation)")
1691
parser.add_option("--servicename", type=u"string",
1692
metavar=u"NAME", help=u"Zeroconf service name")
1693
parser.add_option("--configdir", type=u"string",
1694
default=u"/etc/mandos", metavar=u"DIR",
1695
help=u"Directory to search for configuration"
1696
u" files")
1697
parser.add_option("--no-dbus", action=u"store_false",
1698
dest=u"use_dbus", help=u"Do not provide D-Bus"
1699
u" system bus interface")
1700
parser.add_option("--no-ipv6", action=u"store_false",
1701
dest=u"use_ipv6", help=u"Do not use IPv6")
1702
options = parser.parse_args()[0]
2547
1703
2548
1704
if options.check:
2549
1705
import doctest
2550
fail_count, test_count = doctest.testmod()
2551
sys.exit(os.EX_OK if fail_count == 0 else 1)
1706
doctest.testmod()
1707
sys.exit()
2552
1708
2553
1709
# Default values for config file for server-global settings
2554
server_defaults = { "interface": "",
2555
"address": "",
2556
"port": "",
2557
"debug": "False",
2558
"priority":
2559
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2560
":+SIGN-DSA-SHA256",
2561
"servicename": "Mandos",
2562
"use_dbus": "True",
2563
"use_ipv6": "True",
2564
"debuglevel": "",
2565
"restore": "True",
2566
"socket": "",
2567
"statedir": "/var/lib/mandos",
2568
"foreground": "False",
2569
"zeroconf": "True",
2570
}
1710
server_defaults = { u"interface": u"",
1711
u"address": u"",
1712
u"port": u"",
1713
u"debug": u"False",
1714
u"priority":
1715
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1716
u"servicename": u"Mandos",
1717
u"use_dbus": u"True",
1718
u"use_ipv6": u"True",
1719
u"debuglevel": u"",
1720
}
2571
1721
2572
1722
# Parse config file for server-global settings
2573
1723
server_config = configparser.SafeConfigParser(server_defaults)
2574
1724
del server_defaults
2575
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1725
server_config.read(os.path.join(options.configdir,
1726
u"mandos.conf"))
2576
1727
# Convert the SafeConfigParser object to a dict
2577
1728
server_settings = server_config.defaults()
2578
1729
# Use the appropriate methods on the non-string config options
2579
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2580
server_settings[option] = server_config.getboolean("DEFAULT",
1730
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1731
server_settings[option] = server_config.getboolean(u"DEFAULT",
2581
1732
option)
2582
1733
if server_settings["port"]:
2583
server_settings["port"] = server_config.getint("DEFAULT",
2584
"port")
2585
if server_settings["socket"]:
2586
server_settings["socket"] = server_config.getint("DEFAULT",
2587
"socket")
2588
# Later, stdin will, and stdout and stderr might, be dup'ed
2589
# over with an opened os.devnull. But we don't want this to
2590
# happen with a supplied network socket.
2591
if 0 <= server_settings["socket"] <= 2:
2592
server_settings["socket"] = os.dup(server_settings
2593
["socket"])
1734
server_settings["port"] = server_config.getint(u"DEFAULT",
1735
u"port")
2594
1736
del server_config
2595
1737
2596
1738
# Override the settings from the config file with command line
2597
1739
# options, if set.
2598
for option in ("interface", "address", "port", "debug",
2599
"priority", "servicename", "configdir", "use_dbus",
2600
"use_ipv6", "debuglevel", "restore", "statedir",
2601
"socket", "foreground", "zeroconf"):
1740
for option in (u"interface", u"address", u"port", u"debug",
1741
u"priority", u"servicename", u"configdir",
1742
u"use_dbus", u"use_ipv6", u"debuglevel"):
2602
1743
value = getattr(options, option)
2603
1744
if value is not None:
2604
1745
server_settings[option] = value
2605
1746
del options
2606
1747
# Force all strings to be unicode
2607
1748
for option in server_settings.keys():
2608
if isinstance(server_settings[option], bytes):
2609
server_settings[option] = (server_settings[option]
2610
.decode("utf-8"))
2611
# Force all boolean options to be boolean
2612
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2613
"foreground", "zeroconf"):
2614
server_settings[option] = bool(server_settings[option])
2615
# Debug implies foreground
2616
if server_settings["debug"]:
2617
server_settings["foreground"] = True
1749
if type(server_settings[option]) is str:
1750
server_settings[option] = unicode(server_settings[option])
2618
1751
# Now we have our good server settings in "server_settings"
2619
1752
2620
1753
##################################################################
2621
1754
2622
if (not server_settings["zeroconf"]
2623
and not (server_settings["port"]
2624
or server_settings["socket"] != "")):
2625
parser.error("Needs port or socket to work without Zeroconf")
2626
2627
1755
# For convenience
2628
debug = server_settings["debug"]
2629
debuglevel = server_settings["debuglevel"]
2630
use_dbus = server_settings["use_dbus"]
2631
use_ipv6 = server_settings["use_ipv6"]
2632
stored_state_path = os.path.join(server_settings["statedir"],
2633
stored_state_file)
2634
foreground = server_settings["foreground"]
2635
zeroconf = server_settings["zeroconf"]
2636
2637
if debug:
2638
initlogger(debug, logging.DEBUG)
2639
else:
2640
if not debuglevel:
2641
initlogger(debug)
2642
else:
2643
level = getattr(logging, debuglevel.upper())
2644
initlogger(debug, level)
2645
2646
if server_settings["servicename"] != "Mandos":
2647
syslogger.setFormatter(
2648
logging.Formatter('Mandos ({}) [%(process)d]:'
2649
' %(levelname)s: %(message)s'.format(
2650
server_settings["servicename"])))
1756
debug = server_settings[u"debug"]
1757
debuglevel = server_settings[u"debuglevel"]
1758
use_dbus = server_settings[u"use_dbus"]
1759
use_ipv6 = server_settings[u"use_ipv6"]
1760
1761
if server_settings[u"servicename"] != u"Mandos":
1762
syslogger.setFormatter(logging.Formatter
1763
(u'Mandos (%s) [%%(process)d]:'
1764
u' %%(levelname)s: %%(message)s'
1765
% server_settings[u"servicename"]))
2651
1766
2652
1767
# Parse config file with clients
2653
client_config = configparser.SafeConfigParser(Client
2654
.client_defaults)
2655
client_config.read(os.path.join(server_settings["configdir"],
2656
"clients.conf"))
1768
client_defaults = { u"timeout": u"1h",
1769
u"interval": u"5m",
1770
u"checker": u"fping -q -- %%(host)s",
1771
u"host": u"",
1772
u"approval_delay": u"0s",
1773
u"approval_duration": u"1s",
1774
}
1775
client_config = configparser.SafeConfigParser(client_defaults)
1776
client_config.read(os.path.join(server_settings[u"configdir"],
1777
u"clients.conf"))
2657
1778
2658
1779
global mandos_dbus_service
2659
1780
mandos_dbus_service = None
2660
1781
2661
socketfd = None
2662
if server_settings["socket"] != "":
2663
socketfd = server_settings["socket"]
2664
tcp_server = MandosServer(
2665
(server_settings["address"], server_settings["port"]),
2666
ClientHandler,
2667
interface=(server_settings["interface"] or None),
2668
use_ipv6=use_ipv6,
2669
gnutls_priority=server_settings["priority"],
2670
use_dbus=use_dbus,
2671
socketfd=socketfd)
2672
if not foreground:
2673
pidfilename = "/run/mandos.pid"
2674
if not os.path.isdir("/run/."):
2675
pidfilename = "/var/run/mandos.pid"
2676
pidfile = None
1782
tcp_server = MandosServer((server_settings[u"address"],
1783
server_settings[u"port"]),
1784
ClientHandler,
1785
interface=(server_settings[u"interface"]
1786
or None),
1787
use_ipv6=use_ipv6,
1788
gnutls_priority=
1789
server_settings[u"priority"],
1790
use_dbus=use_dbus)
1791
if not debug:
1792
pidfilename = u"/var/run/mandos.pid"
2677
1793
try:
2678
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2679
except IOError as e:
2680
logger.error("Could not open file %r", pidfilename,
2681
exc_info=e)
1794
pidfile = open(pidfilename, u"w")
1795
except IOError:
1796
logger.error(u"Could not open file %r", pidfilename)
2682
1797
2683
for name in ("_mandos", "mandos", "nobody"):
1798
try:
1799
uid = pwd.getpwnam(u"_mandos").pw_uid
1800
gid = pwd.getpwnam(u"_mandos").pw_gid
1801
except KeyError:
2684
1802
try:
2685
uid = pwd.getpwnam(name).pw_uid
2686
gid = pwd.getpwnam(name).pw_gid
2687
break
1803
uid = pwd.getpwnam(u"mandos").pw_uid
1804
gid = pwd.getpwnam(u"mandos").pw_gid
2688
1805
except KeyError:
2689
continue
2690
else:
2691
uid = 65534
2692
gid = 65534
1806
try:
1807
uid = pwd.getpwnam(u"nobody").pw_uid
1808
gid = pwd.getpwnam(u"nobody").pw_gid
1809
except KeyError:
1810
uid = 65534
1811
gid = 65534
2693
1812
try:
2694
1813
os.setgid(gid)
2695
1814
os.setuid(uid)
2696
except OSError as error:
2697
if error.errno != errno.EPERM:
2698
raise
1815
except OSError, error:
1816
if error[0] != errno.EPERM:
1817
raise error
2699
1818
1819
if not debug and not debuglevel:
1820
syslogger.setLevel(logging.WARNING)
1821
console.setLevel(logging.WARNING)
1822
if debuglevel:
1823
level = getattr(logging, debuglevel.upper())
1824
syslogger.setLevel(level)
1825
console.setLevel(level)
1826
2700
1827
if debug:
2701
1828
# Enable all possible GnuTLS debugging
2702
1829
2706
1833
2707
1834
@gnutls.library.types.gnutls_log_func
2708
1835
def debug_gnutls(level, string):
2709
logger.debug("GnuTLS: %s", string[:-1])
1836
logger.debug(u"GnuTLS: %s", string[:-1])
2710
1837
2711
gnutls.library.functions.gnutls_global_set_log_function(
2712
debug_gnutls)
1838
(gnutls.library.functions
1839
.gnutls_global_set_log_function(debug_gnutls))
2713
1840
2714
1841
# Redirect stdin so all checkers get /dev/null
2715
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1842
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2716
1843
os.dup2(null, sys.stdin.fileno())
2717
1844
if null > 2:
2718
1845
os.close(null)
1846
else:
1847
# No console logging
1848
logger.removeHandler(console)
2719
1849
2720
1850
# Need to fork before connecting to D-Bus
2721
if not foreground:
1851
if not debug:
2722
1852
# Close all input and output, do double fork, etc.
2723
1853
daemon()
2724
1854
2725
# multiprocessing will use threads, so before we use gobject we
2726
# need to inform gobject that threads will be used.
2727
gobject.threads_init()
2728
2729
1855
global main_loop
2730
1856
# From the Avahi example code
2731
DBusGMainLoop(set_as_default=True)
1857
DBusGMainLoop(set_as_default=True )
2732
1858
main_loop = gobject.MainLoop()
2733
1859
bus = dbus.SystemBus()
2734
1860
# End of Avahi example code
2735
1861
if use_dbus:
2736
1862
try:
2737
bus_name = dbus.service.BusName("se.recompile.Mandos",
2738
bus,
2739
do_not_queue=True)
2740
old_bus_name = dbus.service.BusName(
2741
"se.bsnet.fukt.Mandos", bus,
2742
do_not_queue=True)
2743
except dbus.exceptions.DBusException as e:
2744
logger.error("Disabling D-Bus:", exc_info=e)
1863
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1864
bus, do_not_queue=True)
1865
except dbus.exceptions.NameExistsException, e:
1866
logger.error(unicode(e) + u", disabling D-Bus")
2745
1867
use_dbus = False
2746
server_settings["use_dbus"] = False
1868
server_settings[u"use_dbus"] = False
2747
1869
tcp_server.use_dbus = False
2748
if zeroconf:
2749
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2750
service = AvahiServiceToSyslog(
2751
name = server_settings["servicename"],
2752
servicetype = "_mandos._tcp",
2753
protocol = protocol,
2754
bus = bus)
2755
if server_settings["interface"]:
2756
service.interface = if_nametoindex(
2757
server_settings["interface"].encode("utf-8"))
1870
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1871
service = AvahiService(name = server_settings[u"servicename"],
1872
servicetype = u"_mandos._tcp",
1873
protocol = protocol, bus = bus)
1874
if server_settings["interface"]:
1875
service.interface = (if_nametoindex
1876
(str(server_settings[u"interface"])))
2758
1877
2759
1878
global multiprocessing_manager
2760
1879
multiprocessing_manager = multiprocessing.Manager()
2762
1881
client_class = Client
2763
1882
if use_dbus:
2764
1883
client_class = functools.partial(ClientDBus, bus = bus)
2765
2766
client_settings = Client.config_parser(client_config)
2767
old_client_settings = {}
2768
clients_data = {}
2769
2770
# This is used to redirect stdout and stderr for checker processes
2771
global wnull
2772
wnull = open(os.devnull, "w") # A writable /dev/null
2773
# Only used if server is running in foreground but not in debug
2774
# mode
2775
if debug or not foreground:
2776
wnull.close()
2777
2778
# Get client data and settings from last running state.
2779
if server_settings["restore"]:
2780
try:
2781
with open(stored_state_path, "rb") as stored_state:
2782
clients_data, old_client_settings = pickle.load(
2783
stored_state)
2784
os.remove(stored_state_path)
2785
except IOError as e:
2786
if e.errno == errno.ENOENT:
2787
logger.warning("Could not load persistent state:"
2788
" {}".format(os.strerror(e.errno)))
2789
else:
2790
logger.critical("Could not load persistent state:",
2791
exc_info=e)
2792
raise
2793
except EOFError as e:
2794
logger.warning("Could not load persistent state: "
2795
"EOFError:",
2796
exc_info=e)
2797
2798
with PGPEngine() as pgp:
2799
for client_name, client in clients_data.items():
2800
# Skip removed clients
2801
if client_name not in client_settings:
2802
continue
2803
2804
# Decide which value to use after restoring saved state.
2805
# We have three different values: Old config file,
2806
# new config file, and saved state.
2807
# New config value takes precedence if it differs from old
2808
# config value, otherwise use saved state.
2809
for name, value in client_settings[client_name].items():
2810
try:
2811
# For each value in new config, check if it
2812
# differs from the old config value (Except for
2813
# the "secret" attribute)
2814
if (name != "secret"
2815
and (value !=
2816
old_client_settings[client_name][name])):
2817
client[name] = value
2818
except KeyError:
2819
pass
2820
2821
# Clients who has passed its expire date can still be
2822
# enabled if its last checker was successful. A Client
2823
# whose checker succeeded before we stored its state is
2824
# assumed to have successfully run all checkers during
2825
# downtime.
2826
if client["enabled"]:
2827
if datetime.datetime.utcnow() >= client["expires"]:
2828
if not client["last_checked_ok"]:
2829
logger.warning(
2830
"disabling client {} - Client never "
2831
"performed a successful checker".format(
2832
client_name))
2833
client["enabled"] = False
2834
elif client["last_checker_status"] != 0:
2835
logger.warning(
2836
"disabling client {} - Client last"
2837
" checker failed with error code"
2838
" {}".format(
2839
client_name,
2840
client["last_checker_status"]))
2841
client["enabled"] = False
2842
else:
2843
client["expires"] = (
2844
datetime.datetime.utcnow()
2845
+ client["timeout"])
2846
logger.debug("Last checker succeeded,"
2847
" keeping {} enabled".format(
2848
client_name))
1884
def client_config_items(config, section):
1885
special_settings = {
1886
"approved_by_default":
1887
lambda: config.getboolean(section,
1888
"approved_by_default"),
1889
}
1890
for name, value in config.items(section):
2849
1891
try:
2850
client["secret"] = pgp.decrypt(
2851
client["encrypted_secret"],
2852
client_settings[client_name]["secret"])
2853
except PGPError:
2854
# If decryption fails, we use secret from new settings
2855
logger.debug("Failed to decrypt {} old secret".format(
2856
client_name))
2857
client["secret"] = (client_settings[client_name]
2858
["secret"])
2859
2860
# Add/remove clients based on new changes made to config
2861
for client_name in (set(old_client_settings)
2862
- set(client_settings)):
2863
del clients_data[client_name]
2864
for client_name in (set(client_settings)
2865
- set(old_client_settings)):
2866
clients_data[client_name] = client_settings[client_name]
2867
2868
# Create all client objects
2869
for client_name, client in clients_data.items():
2870
tcp_server.clients[client_name] = client_class(
2871
name = client_name,
2872
settings = client,
2873
server_settings = server_settings)
2874
1892
yield (name, special_settings[name]())
1893
except KeyError:
1894
yield (name, value)
1895
1896
tcp_server.clients.update(set(
1897
client_class(name = section,
1898
config= dict(client_config_items(
1899
client_config, section)))
1900
for section in client_config.sections()))
2875
1901
if not tcp_server.clients:
2876
logger.warning("No clients defined")
2877
2878
if not foreground:
2879
if pidfile is not None:
2880
pid = os.getpid()
2881
try:
2882
with pidfile:
2883
print(pid, file=pidfile)
2884
except IOError:
2885
logger.error("Could not write to file %r with PID %d",
2886
pidfilename, pid)
2887
del pidfile
1902
logger.warning(u"No clients defined")
1903
1904
if not debug:
1905
try:
1906
with pidfile:
1907
pid = os.getpid()
1908
pidfile.write(str(pid) + "\n")
1909
del pidfile
1910
except IOError:
1911
logger.error(u"Could not write to file %r with PID %d",
1912
pidfilename, pid)
1913
except NameError:
1914
# "pidfile" was never created
1915
pass
2888
1916
del pidfilename
2889
1917
1918
signal.signal(signal.SIGINT, signal.SIG_IGN)
1919
2890
1920
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2891
1921
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2892
1922
2893
1923
if use_dbus:
2894
2895
@alternate_dbus_interfaces(
2896
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2897
class MandosDBusService(DBusObjectWithObjectManager):
1924
class MandosDBusService(dbus.service.Object):
2898
1925
"""A D-Bus proxy object"""
2899
2900
1926
def __init__(self):
2901
dbus.service.Object.__init__(self, bus, "/")
2902
2903
_interface = "se.recompile.Mandos"
2904
2905
@dbus.service.signal(_interface, signature="o")
1927
dbus.service.Object.__init__(self, bus, u"/")
1928
_interface = u"se.bsnet.fukt.Mandos"
1929
1930
@dbus.service.signal(_interface, signature=u"o")
2906
1931
def ClientAdded(self, objpath):
2907
1932
"D-Bus signal"
2908
1933
pass
2909
1934
2910
@dbus.service.signal(_interface, signature="ss")
1935
@dbus.service.signal(_interface, signature=u"ss")
2911
1936
def ClientNotFound(self, fingerprint, address):
2912
1937
"D-Bus signal"
2913
1938
pass
2914
1939
2915
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2916
"true"})
2917
@dbus.service.signal(_interface, signature="os")
1940
@dbus.service.signal(_interface, signature=u"os")
2918
1941
def ClientRemoved(self, objpath, name):
2919
1942
"D-Bus signal"
2920
1943
pass
2921
1944
2922
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2923
"true"})
2924
@dbus.service.method(_interface, out_signature="ao")
1945
@dbus.service.method(_interface, out_signature=u"ao")
2925
1946
def GetAllClients(self):
2926
1947
"D-Bus method"
2927
return dbus.Array(c.dbus_object_path for c in
2928
tcp_server.clients.itervalues())
1948
return dbus.Array(c.dbus_object_path
1949
for c in tcp_server.clients)
2929
1950
2930
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2931
"true"})
2932
1951
@dbus.service.method(_interface,
2933
out_signature="a{oa{sv}}")
1952
out_signature=u"a{oa{sv}}")
2934
1953
def GetAllClientsWithProperties(self):
2935
1954
"D-Bus method"
2936
1955
return dbus.Dictionary(
2937
{ c.dbus_object_path: c.GetAll(
2938
"se.recompile.Mandos.Client")
2939
for c in tcp_server.clients.itervalues() },
2940
signature="oa{sv}")
1956
((c.dbus_object_path, c.GetAll(u""))
1957
for c in tcp_server.clients),
1958
signature=u"oa{sv}")
2941
1959
2942
@dbus.service.method(_interface, in_signature="o")
1960
@dbus.service.method(_interface, in_signature=u"o")
2943
1961
def RemoveClient(self, object_path):
2944
1962
"D-Bus method"
2945
for c in tcp_server.clients.itervalues():
1963
for c in tcp_server.clients:
2946
1964
if c.dbus_object_path == object_path:
2947
del tcp_server.clients[c.name]
1965
tcp_server.clients.remove(c)
2948
1966
c.remove_from_connection()
2949
# Don't signal the disabling
1967
# Don't signal anything except ClientRemoved
2950
1968
c.disable(quiet=True)
2951
# Emit D-Bus signal for removal
2952
self.client_removed_signal(c)
1969
# Emit D-Bus signal
1970
self.ClientRemoved(object_path, c.name)
2953
1971
return
2954
1972
raise KeyError(object_path)
2955
1973
2956
1974
del _interface
2957
2958
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
2959
out_signature = "a{oa{sa{sv}}}")
2960
def GetManagedObjects(self):
2961
"""D-Bus method"""
2962
return dbus.Dictionary(
2963
{ client.dbus_object_path:
2964
dbus.Dictionary(
2965
{ interface: client.GetAll(interface)
2966
for interface in
2967
client._get_all_interface_names()})
2968
for client in tcp_server.clients.values()})
2969
2970
def client_added_signal(self, client):
2971
"""Send the new standard signal and the old signal"""
2972
if use_dbus:
2973
# New standard signal
2974
self.InterfacesAdded(
2975
client.dbus_object_path,
2976
dbus.Dictionary(
2977
{ interface: client.GetAll(interface)
2978
for interface in
2979
client._get_all_interface_names()}))
2980
# Old signal
2981
self.ClientAdded(client.dbus_object_path)
2982
2983
def client_removed_signal(self, client):
2984
"""Send the new standard signal and the old signal"""
2985
if use_dbus:
2986
# New standard signal
2987
self.InterfacesRemoved(
2988
client.dbus_object_path,
2989
client._get_all_interface_names())
2990
# Old signal
2991
self.ClientRemoved(client.dbus_object_path,
2992
client.name)
2993
1975
2994
1976
mandos_dbus_service = MandosDBusService()
2995
1977
2996
1978
def cleanup():
2997
1979
"Cleanup function; run on exit"
2998
if zeroconf:
2999
service.cleanup()
3000
3001
multiprocessing.active_children()
3002
wnull.close()
3003
if not (tcp_server.clients or client_settings):
3004
return
3005
3006
# Store client before exiting. Secrets are encrypted with key
3007
# based on what config file has. If config file is
3008
# removed/edited, old secret will thus be unrecovable.
3009
clients = {}
3010
with PGPEngine() as pgp:
3011
for client in tcp_server.clients.itervalues():
3012
key = client_settings[client.name]["secret"]
3013
client.encrypted_secret = pgp.encrypt(client.secret,
3014
key)
3015
client_dict = {}
3016
3017
# A list of attributes that can not be pickled
3018
# + secret.
3019
exclude = { "bus", "changedstate", "secret",
3020
"checker", "server_settings" }
3021
for name, typ in inspect.getmembers(dbus.service
3022
.Object):
3023
exclude.add(name)
3024
3025
client_dict["encrypted_secret"] = (client
3026
.encrypted_secret)
3027
for attr in client.client_structure:
3028
if attr not in exclude:
3029
client_dict[attr] = getattr(client, attr)
3030
3031
clients[client.name] = client_dict
3032
del client_settings[client.name]["secret"]
3033
3034
try:
3035
with tempfile.NamedTemporaryFile(
3036
mode='wb',
3037
suffix=".pickle",
3038
prefix='clients-',
3039
dir=os.path.dirname(stored_state_path),
3040
delete=False) as stored_state:
3041
pickle.dump((clients, client_settings), stored_state)
3042
tempname = stored_state.name
3043
os.rename(tempname, stored_state_path)
3044
except (IOError, OSError) as e:
3045
if not debug:
3046
try:
3047
os.remove(tempname)
3048
except NameError:
3049
pass
3050
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3051
logger.warning("Could not save persistent state: {}"
3052
.format(os.strerror(e.errno)))
3053
else:
3054
logger.warning("Could not save persistent state:",
3055
exc_info=e)
3056
raise
3057
3058
# Delete all clients, and settings from config
1980
service.cleanup()
1981
3059
1982
while tcp_server.clients:
3060
name, client = tcp_server.clients.popitem()
1983
client = tcp_server.clients.pop()
3061
1984
if use_dbus:
3062
1985
client.remove_from_connection()
3063
# Don't signal the disabling
1986
client.disable_hook = None
1987
# Don't signal anything except ClientRemoved
3064
1988
client.disable(quiet=True)
3065
# Emit D-Bus signal for removal
3066
1989
if use_dbus:
3067
mandos_dbus_service.client_removed_signal(client)
3068
client_settings.clear()
1990
# Emit D-Bus signal
1991
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1992
client.name)
3069
1993
3070
1994
atexit.register(cleanup)
3071
1995
3072
for client in tcp_server.clients.itervalues():
1996
for client in tcp_server.clients:
3073
1997
if use_dbus:
3074
# Emit D-Bus signal for adding
3075
mandos_dbus_service.client_added_signal(client)
3076
# Need to initiate checking of clients
3077
if client.enabled:
3078
client.init_checker()
1998
# Emit D-Bus signal
1999
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2000
client.enable()
3079
2001
3080
2002
tcp_server.enable()
3081
2003
tcp_server.server_activate()
3082
2004
3083
2005
# Find out what port we got
3084
if zeroconf:
3085
service.port = tcp_server.socket.getsockname()[1]
2006
service.port = tcp_server.socket.getsockname()[1]
3086
2007
if use_ipv6:
3087
logger.info("Now listening on address %r, port %d,"
3088
" flowinfo %d, scope_id %d",
3089
*tcp_server.socket.getsockname())
2008
logger.info(u"Now listening on address %r, port %d,"
2009
" flowinfo %d, scope_id %d"
2010
% tcp_server.socket.getsockname())
3090
2011
else: # IPv4
3091
logger.info("Now listening on address %r, port %d",
3092
*tcp_server.socket.getsockname())
2012
logger.info(u"Now listening on address %r, port %d"
2013
% tcp_server.socket.getsockname())
3093
2014
3094
2015
#service.interface = tcp_server.socket.getsockname()[3]
3095
2016
3096
2017
try:
3097
if zeroconf:
3098
# From the Avahi example code
3099
try:
3100
service.activate()
3101
except dbus.exceptions.DBusException as error:
3102
logger.critical("D-Bus Exception", exc_info=error)
3103
cleanup()
3104
sys.exit(1)
3105
# End of Avahi example code
2018
# From the Avahi example code
2019
try:
2020
service.activate()
2021
except dbus.exceptions.DBusException, error:
2022
logger.critical(u"DBusException: %s", error)
2023
cleanup()
2024
sys.exit(1)
2025
# End of Avahi example code
3106
2026
3107
2027
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3108
2028
lambda *args, **kwargs:
3109
2029
(tcp_server.handle_request
3110
2030
(*args[2:], **kwargs) or True))
3111
2031
3112
logger.debug("Starting main loop")
2032
logger.debug(u"Starting main loop")
3113
2033
main_loop.run()
3114
except AvahiError as error:
3115
logger.critical("Avahi Error", exc_info=error)
2034
except AvahiError, error:
2035
logger.critical(u"AvahiError: %s", error)
3116
2036
cleanup()
3117
2037
sys.exit(1)
3118
2038
except KeyboardInterrupt:
3119
2039
if debug:
3120
print("", file=sys.stderr)
3121
logger.debug("Server received KeyboardInterrupt")
3122
logger.debug("Server exiting")
2040
print >> sys.stderr
2041
logger.debug(u"Server received KeyboardInterrupt")
2042
logger.debug(u"Server exiting")
3123
2043
# Must run before the D-Bus bus name gets deregistered
3124
2044
cleanup()
3125
2045
3126
3127
2046
if __name__ == '__main__':
3128
2047
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0