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- Committer: Teddy Hogeborn
- Date: 2011-08-08 21:12:37 UTC
- Revision ID: teddy@fukt.bsnet.se-20110808211237-jejsz5brjytrjot8
* Makefile (DOCS): Added "intro.8mandos".
(intro.8mandos, intro.8mandos.xhtml): New.
* README: Replaced text with link, reference and short summary.
* intro.xml: New.
* mandos-clients.conf.xml (SEE ALSO): Added "intro(8mandos)".
* mandos-ctl.xml (SEE ALSO): - '' -
* mandos-keygen.xml (SEE ALSO): - '' -
* mandos-monitor.xml (SEE ALSO): - '' -
* mandos.conf.xml (SEE ALSO): - '' -
* mandos.xml (SEE ALSO): - '' -
* plugin-runner.xml (SEE ALSO): - '' -
* plugins.d/askpass-fifo.xml (SEE ALSO): - '' -
* plugins.d/mandos-client.xml (SEE ALSO): - '' -
* plugins.d/password-prompt.xml (SEE ALSO): - '' -
* plugins.d/plymouth.xml (SEE ALSO): - '' -
* plugins.d/splashy.xml (SEE ALSO): - '' -
* plugins.d/usplash.xml (SEE ALSO): - '' -
(intro.8mandos, intro.8mandos.xhtml): New.
* README: Replaced text with link, reference and short summary.
* intro.xml: New.
* mandos-clients.conf.xml (SEE ALSO): Added "intro(8mandos)".
* mandos-ctl.xml (SEE ALSO): - '' -
* mandos-keygen.xml (SEE ALSO): - '' -
* mandos-monitor.xml (SEE ALSO): - '' -
* mandos.conf.xml (SEE ALSO): - '' -
* mandos.xml (SEE ALSO): - '' -
* plugin-runner.xml (SEE ALSO): - '' -
* plugins.d/askpass-fifo.xml (SEE ALSO): - '' -
* plugins.d/mandos-client.xml (SEE ALSO): - '' -
* plugins.d/password-prompt.xml (SEE ALSO): - '' -
* plugins.d/plymouth.xml (SEE ALSO): - '' -
* plugins.d/splashy.xml (SEE ALSO): - '' -
* plugins.d/usplash.xml (SEE ALSO): - '' -
- 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 © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
30
#
31
# Contact the authors at <mandos@recompile.se>.
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
#
33
33
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
37
import SocketServer as socketserver
43
38
import socket
44
39
import argparse
45
40
import datetime
50
45
import gnutls.library.functions
51
46
import gnutls.library.constants
52
47
import gnutls.library.types
53
try:
54
import ConfigParser as configparser
55
except ImportError:
56
import configparser
48
import ConfigParser as configparser
57
49
import sys
58
50
import re
59
51
import os
68
60
import struct
69
61
import fcntl
70
62
import functools
71
try:
72
import cPickle as pickle
73
except ImportError:
74
import pickle
63
import cPickle as pickle
75
64
import multiprocessing
76
import types
77
import binascii
78
import tempfile
79
import itertools
80
import collections
81
import codecs
82
65
83
66
import dbus
84
67
import dbus.service
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
68
import gobject
89
69
import avahi
90
70
from dbus.mainloop.glib import DBusGMainLoop
91
71
import ctypes
101
81
except ImportError:
102
82
SO_BINDTODEVICE = None
103
83
104
if sys.version_info.major == 2:
105
str = unicode
106
107
version = "1.6.9"
108
stored_state_file = "clients.pickle"
109
110
logger = logging.getLogger()
111
syslogger = None
112
113
try:
114
if_nametoindex = ctypes.cdll.LoadLibrary(
115
ctypes.util.find_library("c")).if_nametoindex
116
except (OSError, AttributeError):
117
118
def if_nametoindex(interface):
119
"Get an interface index the hard way, i.e. using fcntl()"
120
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
121
with contextlib.closing(socket.socket()) as s:
122
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
123
struct.pack(b"16s16x", interface))
124
interface_index = struct.unpack("I", ifreq[16:20])[0]
125
return interface_index
126
127
128
def initlogger(debug, level=logging.WARNING):
129
"""init logger and add loglevel"""
130
131
global syslogger
132
syslogger = (logging.handlers.SysLogHandler(
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
135
syslogger.setFormatter(logging.Formatter
136
('Mandos [%(process)d]: %(levelname)s:'
137
' %(message)s'))
138
logger.addHandler(syslogger)
139
140
if debug:
141
console = logging.StreamHandler()
142
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
143
' [%(process)d]:'
144
' %(levelname)s:'
145
' %(message)s'))
146
logger.addHandler(console)
147
logger.setLevel(level)
148
149
150
class PGPError(Exception):
151
"""Exception if encryption/decryption fails"""
152
pass
153
154
155
class PGPEngine(object):
156
"""A simple class for OpenPGP symmetric encryption & decryption"""
157
158
def __init__(self):
159
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
160
self.gnupgargs = ['--batch',
161
'--home', self.tempdir,
162
'--force-mdc',
163
'--quiet',
164
'--no-use-agent']
165
166
def __enter__(self):
167
return self
168
169
def __exit__(self, exc_type, exc_value, traceback):
170
self._cleanup()
171
return False
172
173
def __del__(self):
174
self._cleanup()
175
176
def _cleanup(self):
177
if self.tempdir is not None:
178
# Delete contents of tempdir
179
for root, dirs, files in os.walk(self.tempdir,
180
topdown = False):
181
for filename in files:
182
os.remove(os.path.join(root, filename))
183
for dirname in dirs:
184
os.rmdir(os.path.join(root, dirname))
185
# Remove tempdir
186
os.rmdir(self.tempdir)
187
self.tempdir = None
188
189
def password_encode(self, password):
190
# Passphrase can not be empty and can not contain newlines or
191
# NUL bytes. So we prefix it and hex encode it.
192
encoded = b"mandos" + binascii.hexlify(password)
193
if len(encoded) > 2048:
194
# GnuPG can't handle long passwords, so encode differently
195
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
196
.replace(b"\n", b"\\n")
197
.replace(b"\0", b"\\x00"))
198
return encoded
199
200
def encrypt(self, data, password):
201
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
204
passfile.write(passphrase)
205
passfile.flush()
206
proc = subprocess.Popen(['gpg', '--symmetric',
207
'--passphrase-file',
208
passfile.name]
209
+ self.gnupgargs,
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
214
if proc.returncode != 0:
215
raise PGPError(err)
216
return ciphertext
217
218
def decrypt(self, data, password):
219
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
222
passfile.write(passphrase)
223
passfile.flush()
224
proc = subprocess.Popen(['gpg', '--decrypt',
225
'--passphrase-file',
226
passfile.name]
227
+ self.gnupgargs,
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
232
if proc.returncode != 0:
233
raise PGPError(err)
234
return decrypted_plaintext
235
84
85
version = "1.3.1"
86
87
#logger = logging.getLogger('mandos')
88
logger = logging.Logger('mandos')
89
syslogger = (logging.handlers.SysLogHandler
90
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
92
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
95
logger.addHandler(syslogger)
96
97
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
99
' %(levelname)s:'
100
' %(message)s'))
101
logger.addHandler(console)
236
102
237
103
class AvahiError(Exception):
238
104
def __init__(self, value, *args, **kwargs):
239
105
self.value = value
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
106
super(AvahiError, self).__init__(value, *args, **kwargs)
107
def __unicode__(self):
108
return unicode(repr(self.value))
243
109
244
110
class AvahiServiceError(AvahiError):
245
111
pass
246
112
247
248
113
class AvahiGroupError(AvahiError):
249
114
pass
250
115
257
122
Used to optionally bind to the specified interface.
258
123
name: string; Example: 'Mandos'
259
124
type: string; Example: '_mandos._tcp'.
260
See <https://www.iana.org/assignments/service-names-port-numbers>
125
See <http://www.dns-sd.org/ServiceTypes.html>
261
126
port: integer; what port to announce
262
127
TXT: list of strings; TXT record for the service
263
128
domain: string; Domain to publish on, default to .local if empty.
269
134
server: D-Bus Server
270
135
bus: dbus.SystemBus()
271
136
"""
272
273
def __init__(self,
274
interface = avahi.IF_UNSPEC,
275
name = None,
276
servicetype = None,
277
port = None,
278
TXT = None,
279
domain = "",
280
host = "",
281
max_renames = 32768,
282
protocol = avahi.PROTO_UNSPEC,
283
bus = None):
137
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
138
servicetype = None, port = None, TXT = None,
139
domain = "", host = "", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
284
141
self.interface = interface
285
142
self.name = name
286
143
self.type = servicetype
295
152
self.server = None
296
153
self.bus = bus
297
154
self.entry_group_state_changed_match = None
298
299
def rename(self, remove=True):
155
def rename(self):
300
156
"""Derived from the Avahi example code"""
301
157
if self.rename_count >= self.max_renames:
302
158
logger.critical("No suitable Zeroconf service name found"
303
159
" after %i retries, exiting.",
304
160
self.rename_count)
305
161
raise AvahiServiceError("Too many renames")
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
308
self.rename_count += 1
162
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
309
163
logger.info("Changing Zeroconf service name to %r ...",
310
164
self.name)
311
if remove:
312
self.remove()
165
syslogger.setFormatter(logging.Formatter
166
('Mandos (%s) [%%(process)d]:'
167
' %%(levelname)s: %%(message)s'
168
% self.name))
169
self.remove()
313
170
try:
314
171
self.add()
315
172
except dbus.exceptions.DBusException as error:
316
if (error.get_dbus_name()
317
== "org.freedesktop.Avahi.CollisionError"):
318
logger.info("Local Zeroconf service name collision.")
319
return self.rename(remove=False)
320
else:
321
logger.critical("D-Bus Exception", exc_info=error)
322
self.cleanup()
323
os._exit(1)
324
173
logger.critical("DBusException: %s", error)
174
self.cleanup()
175
os._exit(1)
176
self.rename_count += 1
325
177
def remove(self):
326
178
"""Derived from the Avahi example code"""
327
179
if self.entry_group_state_changed_match is not None:
329
181
self.entry_group_state_changed_match = None
330
182
if self.group is not None:
331
183
self.group.Reset()
332
333
184
def add(self):
334
185
"""Derived from the Avahi example code"""
335
186
self.remove()
340
191
avahi.DBUS_INTERFACE_ENTRY_GROUP)
341
192
self.entry_group_state_changed_match = (
342
193
self.group.connect_to_signal(
343
'StateChanged', self.entry_group_state_changed))
194
'StateChanged', self .entry_group_state_changed))
344
195
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
345
196
self.name, self.type)
346
197
self.group.AddService(
352
203
dbus.UInt16(self.port),
353
204
avahi.string_array_to_txt_array(self.TXT))
354
205
self.group.Commit()
355
356
206
def entry_group_state_changed(self, state, error):
357
207
"""Derived from the Avahi example code"""
358
208
logger.debug("Avahi entry group state change: %i", state)
364
214
self.rename()
365
215
elif state == avahi.ENTRY_GROUP_FAILURE:
366
216
logger.critical("Avahi: Error in group state changed %s",
367
str(error))
368
raise AvahiGroupError("State changed: {!s}".format(error))
369
217
unicode(error))
218
raise AvahiGroupError("State changed: %s"
219
% unicode(error))
370
220
def cleanup(self):
371
221
"""Derived from the Avahi example code"""
372
222
if self.group is not None:
373
223
try:
374
224
self.group.Free()
375
225
except (dbus.exceptions.UnknownMethodException,
376
dbus.exceptions.DBusException):
226
dbus.exceptions.DBusException) as e:
377
227
pass
378
228
self.group = None
379
229
self.remove()
380
381
230
def server_state_changed(self, state, error=None):
382
231
"""Derived from the Avahi example code"""
383
232
logger.debug("Avahi server state change: %i", state)
384
bad_states = {
385
avahi.SERVER_INVALID: "Zeroconf server invalid",
386
avahi.SERVER_REGISTERING: None,
387
avahi.SERVER_COLLISION: "Zeroconf server name collision",
388
avahi.SERVER_FAILURE: "Zeroconf server failure",
389
}
233
bad_states = { avahi.SERVER_INVALID:
234
"Zeroconf server invalid",
235
avahi.SERVER_REGISTERING: None,
236
avahi.SERVER_COLLISION:
237
"Zeroconf server name collision",
238
avahi.SERVER_FAILURE:
239
"Zeroconf server failure" }
390
240
if state in bad_states:
391
241
if bad_states[state] is not None:
392
242
if error is None:
395
245
logger.error(bad_states[state] + ": %r", error)
396
246
self.cleanup()
397
247
elif state == avahi.SERVER_RUNNING:
398
try:
399
self.add()
400
except dbus.exceptions.DBusException as error:
401
if (error.get_dbus_name()
402
== "org.freedesktop.Avahi.CollisionError"):
403
logger.info("Local Zeroconf service name"
404
" collision.")
405
return self.rename(remove=False)
406
else:
407
logger.critical("D-Bus Exception", exc_info=error)
408
self.cleanup()
409
os._exit(1)
248
self.add()
410
249
else:
411
250
if error is None:
412
251
logger.debug("Unknown state: %r", state)
413
252
else:
414
253
logger.debug("Unknown state: %r: %r", state, error)
415
416
254
def activate(self):
417
255
"""Derived from the Avahi example code"""
418
256
if self.server is None:
422
260
follow_name_owner_changes=True),
423
261
avahi.DBUS_INTERFACE_SERVER)
424
262
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
263
self.server_state_changed)
426
264
self.server_state_changed(self.server.GetState())
427
265
428
266
429
class AvahiServiceToSyslog(AvahiService):
430
def rename(self, *args, **kwargs):
431
"""Add the new name to the syslog messages"""
432
ret = AvahiService.rename(self, *args, **kwargs)
433
syslogger.setFormatter(logging.Formatter(
434
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
435
.format(self.name)))
436
return ret
437
438
def call_pipe(connection, # : multiprocessing.Connection
439
func, *args, **kwargs):
440
"""This function is meant to be called by multiprocessing.Process
441
442
This function runs func(*args, **kwargs), and writes the resulting
443
return value on the provided multiprocessing.Connection.
444
"""
445
connection.send(func(*args, **kwargs))
446
connection.close()
447
448
267
class Client(object):
449
268
"""A representation of a client host served by this server.
450
269
451
270
Attributes:
452
approved: bool(); 'None' if not yet approved/disapproved
271
_approved: bool(); 'None' if not yet approved/disapproved
453
272
approval_delay: datetime.timedelta(); Time to wait for approval
454
273
approval_duration: datetime.timedelta(); Duration of one approval
455
274
checker: subprocess.Popen(); a running checker process used
462
281
instance %(name)s can be used in the command.
463
282
checker_initiator_tag: a gobject event source tag, or None
464
283
created: datetime.datetime(); (UTC) object creation
465
client_structure: Object describing what attributes a client has
466
and is used for storing the client at exit
467
284
current_checker_command: string; current running checker_command
285
disable_hook: If set, called by disable() as disable_hook(self)
468
286
disable_initiator_tag: a gobject event source tag, or None
469
287
enabled: bool()
470
288
fingerprint: string (40 or 32 hexadecimal digits); used to
473
291
interval: datetime.timedelta(); How often to start a new checker
474
292
last_approval_request: datetime.datetime(); (UTC) or None
475
293
last_checked_ok: datetime.datetime(); (UTC) or None
476
last_checker_status: integer between 0 and 255 reflecting exit
477
status of last checker. -1 reflects crashed
478
checker, -2 means no checker completed yet.
479
last_checker_signal: The signal which killed the last checker, if
480
last_checker_status is -1
481
last_enabled: datetime.datetime(); (UTC) or None
294
last_enabled: datetime.datetime(); (UTC)
482
295
name: string; from the config file, used in log messages and
483
296
D-Bus identifiers
484
297
secret: bytestring; sent verbatim (over TLS) to client
485
298
timeout: datetime.timedelta(); How long from last_checked_ok
486
299
until this client is disabled
487
extended_timeout: extra long timeout when secret has been sent
488
300
runtime_expansions: Allowed attributes for runtime expansion.
489
expires: datetime.datetime(); time (UTC) when a client will be
490
disabled, or None
491
server_settings: The server_settings dict from main()
492
301
"""
493
302
494
303
runtime_expansions = ("approval_delay", "approval_duration",
495
"created", "enabled", "expires",
496
"fingerprint", "host", "interval",
497
"last_approval_request", "last_checked_ok",
304
"created", "enabled", "fingerprint",
305
"host", "interval", "last_checked_ok",
498
306
"last_enabled", "name", "timeout")
499
client_defaults = {
500
"timeout": "PT5M",
501
"extended_timeout": "PT15M",
502
"interval": "PT2M",
503
"checker": "fping -q -- %%(host)s",
504
"host": "",
505
"approval_delay": "PT0S",
506
"approval_duration": "PT1S",
507
"approved_by_default": "True",
508
"enabled": "True",
509
}
510
307
511
308
@staticmethod
512
def config_parser(config):
513
"""Construct a new dict of client settings of this form:
514
{ client_name: {setting_name: value, ...}, ...}
515
with exceptions for any special settings as defined above.
516
NOTE: Must be a pure function. Must return the same result
517
value given the same arguments.
518
"""
519
settings = {}
520
for client_name in config.sections():
521
section = dict(config.items(client_name))
522
client = settings[client_name] = {}
523
524
client["host"] = section["host"]
525
# Reformat values from string types to Python types
526
client["approved_by_default"] = config.getboolean(
527
client_name, "approved_by_default")
528
client["enabled"] = config.getboolean(client_name,
529
"enabled")
530
531
# Uppercase and remove spaces from fingerprint for later
532
# comparison purposes with return value from the
533
# fingerprint() function
534
client["fingerprint"] = (section["fingerprint"].upper()
535
.replace(" ", ""))
536
if "secret" in section:
537
client["secret"] = section["secret"].decode("base64")
538
elif "secfile" in section:
539
with open(os.path.expanduser(os.path.expandvars
540
(section["secfile"])),
541
"rb") as secfile:
542
client["secret"] = secfile.read()
543
else:
544
raise TypeError("No secret or secfile for section {}"
545
.format(section))
546
client["timeout"] = string_to_delta(section["timeout"])
547
client["extended_timeout"] = string_to_delta(
548
section["extended_timeout"])
549
client["interval"] = string_to_delta(section["interval"])
550
client["approval_delay"] = string_to_delta(
551
section["approval_delay"])
552
client["approval_duration"] = string_to_delta(
553
section["approval_duration"])
554
client["checker_command"] = section["checker"]
555
client["last_approval_request"] = None
556
client["last_checked_ok"] = None
557
client["last_checker_status"] = -2
558
559
return settings
560
561
def __init__(self, settings, name = None, server_settings=None):
309
def _timedelta_to_milliseconds(td):
310
"Convert a datetime.timedelta() to milliseconds"
311
return ((td.days * 24 * 60 * 60 * 1000)
312
+ (td.seconds * 1000)
313
+ (td.microseconds // 1000))
314
315
def timeout_milliseconds(self):
316
"Return the 'timeout' attribute in milliseconds"
317
return self._timedelta_to_milliseconds(self.timeout)
318
319
def interval_milliseconds(self):
320
"Return the 'interval' attribute in milliseconds"
321
return self._timedelta_to_milliseconds(self.interval)
322
323
def approval_delay_milliseconds(self):
324
return self._timedelta_to_milliseconds(self.approval_delay)
325
326
def __init__(self, name = None, disable_hook=None, config=None):
327
"""Note: the 'checker' key in 'config' sets the
328
'checker_command' attribute and *not* the 'checker'
329
attribute."""
562
330
self.name = name
563
if server_settings is None:
564
server_settings = {}
565
self.server_settings = server_settings
566
# adding all client settings
567
for setting, value in settings.items():
568
setattr(self, setting, value)
569
570
if self.enabled:
571
if not hasattr(self, "last_enabled"):
572
self.last_enabled = datetime.datetime.utcnow()
573
if not hasattr(self, "expires"):
574
self.expires = (datetime.datetime.utcnow()
575
+ self.timeout)
576
else:
577
self.last_enabled = None
578
self.expires = None
579
331
if config is None:
332
config = {}
580
333
logger.debug("Creating client %r", self.name)
334
# Uppercase and remove spaces from fingerprint for later
335
# comparison purposes with return value from the fingerprint()
336
# function
337
self.fingerprint = (config["fingerprint"].upper()
338
.replace(" ", ""))
581
339
logger.debug(" Fingerprint: %s", self.fingerprint)
582
self.created = settings.get("created",
583
datetime.datetime.utcnow())
584
585
# attributes specific for this server instance
340
if "secret" in config:
341
self.secret = config["secret"].decode("base64")
342
elif "secfile" in config:
343
with open(os.path.expanduser(os.path.expandvars
344
(config["secfile"])),
345
"rb") as secfile:
346
self.secret = secfile.read()
347
else:
348
raise TypeError("No secret or secfile for client %s"
349
% self.name)
350
self.host = config.get("host", "")
351
self.created = datetime.datetime.utcnow()
352
self.enabled = False
353
self.last_approval_request = None
354
self.last_enabled = None
355
self.last_checked_ok = None
356
self.timeout = string_to_delta(config["timeout"])
357
self.interval = string_to_delta(config["interval"])
358
self.disable_hook = disable_hook
586
359
self.checker = None
587
360
self.checker_initiator_tag = None
588
361
self.disable_initiator_tag = None
589
362
self.checker_callback_tag = None
363
self.checker_command = config["checker"]
590
364
self.current_checker_command = None
591
self.approved = None
365
self.last_connect = None
366
self._approved = None
367
self.approved_by_default = config.get("approved_by_default",
368
True)
592
369
self.approvals_pending = 0
593
self.changedstate = multiprocessing_manager.Condition(
594
multiprocessing_manager.Lock())
595
self.client_structure = [attr
596
for attr in self.__dict__.iterkeys()
597
if not attr.startswith("_")]
598
self.client_structure.append("client_structure")
599
600
for name, t in inspect.getmembers(
601
type(self), lambda obj: isinstance(obj, property)):
602
if not name.startswith("_"):
603
self.client_structure.append(name)
370
self.approval_delay = string_to_delta(
371
config["approval_delay"])
372
self.approval_duration = string_to_delta(
373
config["approval_duration"])
374
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
604
375
605
# Send notice to process children that client state has changed
606
376
def send_changedstate(self):
607
with self.changedstate:
608
self.changedstate.notify_all()
609
377
self.changedstate.acquire()
378
self.changedstate.notify_all()
379
self.changedstate.release()
380
610
381
def enable(self):
611
382
"""Start this client's checker and timeout hooks"""
612
383
if getattr(self, "enabled", False):
613
384
# Already enabled
614
385
return
615
self.expires = datetime.datetime.utcnow() + self.timeout
616
self.enabled = True
386
self.send_changedstate()
617
387
self.last_enabled = datetime.datetime.utcnow()
618
self.init_checker()
619
self.send_changedstate()
388
# Schedule a new checker to be started an 'interval' from now,
389
# and every interval from then on.
390
self.checker_initiator_tag = (gobject.timeout_add
391
(self.interval_milliseconds(),
392
self.start_checker))
393
# Schedule a disable() when 'timeout' has passed
394
self.disable_initiator_tag = (gobject.timeout_add
395
(self.timeout_milliseconds(),
396
self.disable))
397
self.enabled = True
398
# Also start a new checker *right now*.
399
self.start_checker()
620
400
621
401
def disable(self, quiet=True):
622
402
"""Disable this client."""
623
403
if not getattr(self, "enabled", False):
624
404
return False
625
405
if not quiet:
406
self.send_changedstate()
407
if not quiet:
626
408
logger.info("Disabling client %s", self.name)
627
if getattr(self, "disable_initiator_tag", None) is not None:
409
if getattr(self, "disable_initiator_tag", False):
628
410
gobject.source_remove(self.disable_initiator_tag)
629
411
self.disable_initiator_tag = None
630
self.expires = None
631
if getattr(self, "checker_initiator_tag", None) is not None:
412
if getattr(self, "checker_initiator_tag", False):
632
413
gobject.source_remove(self.checker_initiator_tag)
633
414
self.checker_initiator_tag = None
634
415
self.stop_checker()
416
if self.disable_hook:
417
self.disable_hook(self)
635
418
self.enabled = False
636
if not quiet:
637
self.send_changedstate()
638
419
# Do not run this again if called by a gobject.timeout_add
639
420
return False
640
421
641
422
def __del__(self):
423
self.disable_hook = None
642
424
self.disable()
643
425
644
def init_checker(self):
645
# Schedule a new checker to be started an 'interval' from now,
646
# and every interval from then on.
647
if self.checker_initiator_tag is not None:
648
gobject.source_remove(self.checker_initiator_tag)
649
self.checker_initiator_tag = gobject.timeout_add(
650
int(self.interval.total_seconds() * 1000),
651
self.start_checker)
652
# Schedule a disable() when 'timeout' has passed
653
if self.disable_initiator_tag is not None:
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = gobject.timeout_add(
656
int(self.timeout.total_seconds() * 1000), self.disable)
657
# Also start a new checker *right now*.
658
self.start_checker()
659
660
def checker_callback(self, source, condition, connection,
661
command):
426
def checker_callback(self, pid, condition, command):
662
427
"""The checker has completed, so take appropriate actions."""
663
428
self.checker_callback_tag = None
664
429
self.checker = None
665
# Read return code from connection (see call_pipe)
666
returncode = connection.recv()
667
connection.close()
668
669
if returncode >= 0:
670
self.last_checker_status = returncode
671
self.last_checker_signal = None
672
if self.last_checker_status == 0:
430
if os.WIFEXITED(condition):
431
exitstatus = os.WEXITSTATUS(condition)
432
if exitstatus == 0:
673
433
logger.info("Checker for %(name)s succeeded",
674
434
vars(self))
675
435
self.checked_ok()
676
436
else:
677
logger.info("Checker for %(name)s failed", vars(self))
437
logger.info("Checker for %(name)s failed",
438
vars(self))
678
439
else:
679
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
440
logger.warning("Checker for %(name)s crashed?",
682
441
vars(self))
683
return False
684
442
685
443
def checked_ok(self):
686
"""Assert that the client has been seen, alive and well."""
444
"""Bump up the timeout for this client.
445
446
This should only be called when the client has been seen,
447
alive and well.
448
"""
687
449
self.last_checked_ok = datetime.datetime.utcnow()
688
self.last_checker_status = 0
689
self.last_checker_signal = None
690
self.bump_timeout()
691
692
def bump_timeout(self, timeout=None):
693
"""Bump up the timeout for this client."""
694
if timeout is None:
695
timeout = self.timeout
696
if self.disable_initiator_tag is not None:
697
gobject.source_remove(self.disable_initiator_tag)
698
self.disable_initiator_tag = None
699
if getattr(self, "enabled", False):
700
self.disable_initiator_tag = gobject.timeout_add(
701
int(timeout.total_seconds() * 1000), self.disable)
702
self.expires = datetime.datetime.utcnow() + timeout
450
gobject.source_remove(self.disable_initiator_tag)
451
self.disable_initiator_tag = (gobject.timeout_add
452
(self.timeout_milliseconds(),
453
self.disable))
703
454
704
455
def need_approval(self):
705
456
self.last_approval_request = datetime.datetime.utcnow()
710
461
If a checker already exists, leave it running and do
711
462
nothing."""
712
463
# The reason for not killing a running checker is that if we
713
# did that, and if a checker (for some reason) started running
714
# slowly and taking more than 'interval' time, then the client
715
# would inevitably timeout, since no checker would get a
716
# chance to run to completion. If we instead leave running
464
# did that, then if a checker (for some reason) started
465
# running slowly and taking more than 'interval' time, the
466
# client would inevitably timeout, since no checker would get
467
# a chance to run to completion. If we instead leave running
717
468
# checkers alone, the checker would have to take more time
718
469
# than 'timeout' for the client to be disabled, which is as it
719
470
# should be.
720
471
721
if self.checker is not None and not self.checker.is_alive():
722
logger.warning("Checker was not alive; joining")
723
self.checker.join()
724
self.checker = None
472
# If a checker exists, make sure it is not a zombie
473
try:
474
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
475
except (AttributeError, OSError) as error:
476
if (isinstance(error, OSError)
477
and error.errno != errno.ECHILD):
478
raise error
479
else:
480
if pid:
481
logger.warning("Checker was a zombie")
482
gobject.source_remove(self.checker_callback_tag)
483
self.checker_callback(pid, status,
484
self.current_checker_command)
725
485
# Start a new checker if needed
726
486
if self.checker is None:
727
# Escape attributes for the shell
728
escaped_attrs = {
729
attr: re.escape(str(getattr(self, attr)))
730
for attr in self.runtime_expansions }
731
487
try:
732
command = self.checker_command % escaped_attrs
733
except TypeError as error:
734
logger.error('Could not format string "%s"',
735
self.checker_command,
736
exc_info=error)
737
return True # Try again later
488
# In case checker_command has exactly one % operator
489
command = self.checker_command % self.host
490
except TypeError:
491
# Escape attributes for the shell
492
escaped_attrs = dict(
493
(attr,
494
re.escape(unicode(str(getattr(self, attr, "")),
495
errors=
496
'replace')))
497
for attr in
498
self.runtime_expansions)
499
500
try:
501
command = self.checker_command % escaped_attrs
502
except TypeError as error:
503
logger.error('Could not format string "%s":'
504
' %s', self.checker_command, error)
505
return True # Try again later
738
506
self.current_checker_command = command
739
logger.info("Starting checker %r for %s", command,
740
self.name)
741
# We don't need to redirect stdout and stderr, since
742
# in normal mode, that is already done by daemon(),
743
# and in debug mode we don't want to. (Stdin is
744
# always replaced by /dev/null.)
745
# The exception is when not debugging but nevertheless
746
# running in the foreground; use the previously
747
# created wnull.
748
popen_args = { "close_fds": True,
749
"shell": True,
750
"cwd": "/" }
751
if (not self.server_settings["debug"]
752
and self.server_settings["foreground"]):
753
popen_args.update({"stdout": wnull,
754
"stderr": wnull })
755
pipe = multiprocessing.Pipe(duplex = False)
756
self.checker = multiprocessing.Process(
757
target = call_pipe,
758
args = (pipe[1], subprocess.call, command),
759
kwargs = popen_args)
760
self.checker.start()
761
self.checker_callback_tag = gobject.io_add_watch(
762
pipe[0].fileno(), gobject.IO_IN,
763
self.checker_callback, pipe[0], command)
507
try:
508
logger.info("Starting checker %r for %s",
509
command, self.name)
510
# We don't need to redirect stdout and stderr, since
511
# in normal mode, that is already done by daemon(),
512
# and in debug mode we don't want to. (Stdin is
513
# always replaced by /dev/null.)
514
self.checker = subprocess.Popen(command,
515
close_fds=True,
516
shell=True, cwd="/")
517
self.checker_callback_tag = (gobject.child_watch_add
518
(self.checker.pid,
519
self.checker_callback,
520
data=command))
521
# The checker may have completed before the gobject
522
# watch was added. Check for this.
523
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
524
if pid:
525
gobject.source_remove(self.checker_callback_tag)
526
self.checker_callback(pid, status, command)
527
except OSError as error:
528
logger.error("Failed to start subprocess: %s",
529
error)
764
530
# Re-run this periodically if run by gobject.timeout_add
765
531
return True
766
532
772
538
if getattr(self, "checker", None) is None:
773
539
return
774
540
logger.debug("Stopping checker for %(name)s", vars(self))
775
self.checker.terminate()
541
try:
542
os.kill(self.checker.pid, signal.SIGTERM)
543
#time.sleep(0.5)
544
#if self.checker.poll() is None:
545
# os.kill(self.checker.pid, signal.SIGKILL)
546
except OSError as error:
547
if error.errno != errno.ESRCH: # No such process
548
raise
776
549
self.checker = None
777
550
778
779
def dbus_service_property(dbus_interface,
780
signature="v",
781
access="readwrite",
782
byte_arrays=False):
551
def dbus_service_property(dbus_interface, signature="v",
552
access="readwrite", byte_arrays=False):
783
553
"""Decorators for marking methods of a DBusObjectWithProperties to
784
554
become properties on the D-Bus.
785
555
794
564
# "Set" method, so we fail early here:
795
565
if byte_arrays and signature != "ay":
796
566
raise ValueError("Byte arrays not supported for non-'ay'"
797
" signature {!r}".format(signature))
798
567
" signature %r" % signature)
799
568
def decorator(func):
800
569
func._dbus_is_property = True
801
570
func._dbus_interface = dbus_interface
806
575
func._dbus_name = func._dbus_name[:-14]
807
576
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
808
577
return func
809
810
return decorator
811
812
813
def dbus_interface_annotations(dbus_interface):
814
"""Decorator for marking functions returning interface annotations
815
816
Usage:
817
818
@dbus_interface_annotations("org.example.Interface")
819
def _foo(self): # Function name does not matter
820
return {"org.freedesktop.DBus.Deprecated": "true",
821
"org.freedesktop.DBus.Property.EmitsChangedSignal":
822
"false"}
823
"""
824
825
def decorator(func):
826
func._dbus_is_interface = True
827
func._dbus_interface = dbus_interface
828
func._dbus_name = dbus_interface
829
return func
830
831
return decorator
832
833
834
def dbus_annotations(annotations):
835
"""Decorator to annotate D-Bus methods, signals or properties
836
Usage:
837
838
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
839
"org.freedesktop.DBus.Property."
840
"EmitsChangedSignal": "false"})
841
@dbus_service_property("org.example.Interface", signature="b",
842
access="r")
843
def Property_dbus_property(self):
844
return dbus.Boolean(False)
845
"""
846
847
def decorator(func):
848
func._dbus_annotations = annotations
849
return func
850
851
578
return decorator
852
579
853
580
854
581
class DBusPropertyException(dbus.exceptions.DBusException):
855
582
"""A base class for D-Bus property-related exceptions
856
583
"""
857
pass
584
def __unicode__(self):
585
return unicode(str(self))
858
586
859
587
860
588
class DBusPropertyAccessException(DBusPropertyException):
871
599
872
600
class DBusObjectWithProperties(dbus.service.Object):
873
601
"""A D-Bus object with properties.
874
602
875
603
Classes inheriting from this can use the dbus_service_property
876
604
decorator to expose methods as D-Bus properties. It exposes the
877
605
standard Get(), Set(), and GetAll() methods on the D-Bus.
878
606
"""
879
607
880
608
@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)
609
def _is_dbus_property(obj):
610
return getattr(obj, "_dbus_is_property", False)
889
611
890
def _get_all_dbus_things(self, thing):
612
def _get_all_dbus_properties(self):
891
613
"""Returns a generator of (name, attribute) pairs
892
614
"""
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)))
615
return ((prop._dbus_name, prop)
616
for name, prop in
617
inspect.getmembers(self, self._is_dbus_property))
898
618
899
619
def _get_dbus_property(self, interface_name, property_name):
900
620
"""Returns a bound method if one exists which is a D-Bus
901
621
property with the specified name and interface.
902
622
"""
903
for cls in self.__class__.__mro__:
904
for name, value in inspect.getmembers(
905
cls, self._is_dbus_thing("property")):
906
if (value._dbus_name == property_name
907
and value._dbus_interface == interface_name):
908
return value.__get__(self)
909
623
for name in (property_name,
624
property_name + "_dbus_property"):
625
prop = getattr(self, name, None)
626
if (prop is None
627
or not self._is_dbus_property(prop)
628
or prop._dbus_name != property_name
629
or (interface_name and prop._dbus_interface
630
and interface_name != prop._dbus_interface)):
631
continue
632
return prop
910
633
# No such property
911
raise DBusPropertyNotFound("{}:{}.{}".format(
912
self.dbus_object_path, interface_name, property_name))
634
raise DBusPropertyNotFound(self.dbus_object_path + ":"
635
+ interface_name + "."
636
+ property_name)
913
637
914
@dbus.service.method(dbus.PROPERTIES_IFACE,
915
in_signature="ss",
638
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
916
639
out_signature="v")
917
640
def Get(self, interface_name, property_name):
918
641
"""Standard D-Bus property Get() method, see D-Bus standard.
936
659
# The byte_arrays option is not supported yet on
937
660
# signatures other than "ay".
938
661
if prop._dbus_signature != "ay":
939
raise ValueError("Byte arrays not supported for non-"
940
"'ay' signature {!r}"
941
.format(prop._dbus_signature))
942
value = dbus.ByteArray(b''.join(chr(byte)
943
for byte in value))
662
raise ValueError
663
value = dbus.ByteArray(''.join(unichr(byte)
664
for byte in value))
944
665
prop(value)
945
666
946
@dbus.service.method(dbus.PROPERTIES_IFACE,
947
in_signature="s",
667
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
948
668
out_signature="a{sv}")
949
669
def GetAll(self, interface_name):
950
670
"""Standard D-Bus property GetAll() method, see D-Bus
951
671
standard.
952
672
953
673
Note: Will not include properties with access="write".
954
674
"""
955
properties = {}
956
for name, prop in self._get_all_dbus_things("property"):
675
all = {}
676
for name, prop in self._get_all_dbus_properties():
957
677
if (interface_name
958
678
and interface_name != prop._dbus_interface):
959
679
# Interface non-empty but did not match
963
683
continue
964
684
value = prop()
965
685
if not hasattr(value, "variant_level"):
966
properties[name] = value
686
all[name] = value
967
687
continue
968
properties[name] = type(value)(
969
value, variant_level = value.variant_level + 1)
970
return dbus.Dictionary(properties, signature="sv")
971
972
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
973
def PropertiesChanged(self, interface_name, changed_properties,
974
invalidated_properties):
975
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
976
standard.
977
"""
978
pass
688
all[name] = type(value)(value, variant_level=
689
value.variant_level+1)
690
return dbus.Dictionary(all, signature="sv")
979
691
980
692
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
981
693
out_signature="s",
982
694
path_keyword='object_path',
983
695
connection_keyword='connection')
984
696
def Introspect(self, object_path, connection):
985
"""Overloading of standard D-Bus method.
986
987
Inserts property tags and interface annotation tags.
697
"""Standard D-Bus method, overloaded to insert property tags.
988
698
"""
989
699
xmlstring = dbus.service.Object.Introspect(self, object_path,
990
700
connection)
991
701
try:
992
702
document = xml.dom.minidom.parseString(xmlstring)
993
994
703
def make_tag(document, name, prop):
995
704
e = document.createElement("property")
996
705
e.setAttribute("name", name)
997
706
e.setAttribute("type", prop._dbus_signature)
998
707
e.setAttribute("access", prop._dbus_access)
999
708
return e
1000
1001
709
for if_tag in document.getElementsByTagName("interface"):
1002
# Add property tags
1003
710
for tag in (make_tag(document, name, prop)
1004
711
for name, prop
1005
in self._get_all_dbus_things("property")
712
in self._get_all_dbus_properties()
1006
713
if prop._dbus_interface
1007
714
== if_tag.getAttribute("name")):
1008
715
if_tag.appendChild(tag)
1009
# Add annotation tags
1010
for typ in ("method", "signal", "property"):
1011
for tag in if_tag.getElementsByTagName(typ):
1012
annots = dict()
1013
for name, prop in (self.
1014
_get_all_dbus_things(typ)):
1015
if (name == tag.getAttribute("name")
1016
and prop._dbus_interface
1017
== if_tag.getAttribute("name")):
1018
annots.update(getattr(
1019
prop, "_dbus_annotations", {}))
1020
for name, value in annots.items():
1021
ann_tag = document.createElement(
1022
"annotation")
1023
ann_tag.setAttribute("name", name)
1024
ann_tag.setAttribute("value", value)
1025
tag.appendChild(ann_tag)
1026
# Add interface annotation tags
1027
for annotation, value in dict(
1028
itertools.chain.from_iterable(
1029
annotations().items()
1030
for name, annotations
1031
in self._get_all_dbus_things("interface")
1032
if name == if_tag.getAttribute("name")
1033
)).items():
1034
ann_tag = document.createElement("annotation")
1035
ann_tag.setAttribute("name", annotation)
1036
ann_tag.setAttribute("value", value)
1037
if_tag.appendChild(ann_tag)
1038
716
# Add the names to the return values for the
1039
717
# "org.freedesktop.DBus.Properties" methods
1040
718
if (if_tag.getAttribute("name")
1055
733
except (AttributeError, xml.dom.DOMException,
1056
734
xml.parsers.expat.ExpatError) as error:
1057
735
logger.error("Failed to override Introspection method",
1058
exc_info=error)
736
error)
1059
737
return xmlstring
1060
738
1061
739
1062
def datetime_to_dbus(dt, variant_level=0):
1063
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1064
if dt is None:
1065
return dbus.String("", variant_level = variant_level)
1066
return dbus.String(dt.isoformat(), variant_level=variant_level)
1067
1068
1069
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1070
"""A class decorator; applied to a subclass of
1071
dbus.service.Object, it will add alternate D-Bus attributes with
1072
interface names according to the "alt_interface_names" mapping.
1073
Usage:
1074
1075
@alternate_dbus_interfaces({"org.example.Interface":
1076
"net.example.AlternateInterface"})
1077
class SampleDBusObject(dbus.service.Object):
1078
@dbus.service.method("org.example.Interface")
1079
def SampleDBusMethod():
1080
pass
1081
1082
The above "SampleDBusMethod" on "SampleDBusObject" will be
1083
reachable via two interfaces: "org.example.Interface" and
1084
"net.example.AlternateInterface", the latter of which will have
1085
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1086
"true", unless "deprecate" is passed with a False value.
1087
1088
This works for methods and signals, and also for D-Bus properties
1089
(from DBusObjectWithProperties) and interfaces (from the
1090
dbus_interface_annotations decorator).
1091
"""
1092
1093
def wrapper(cls):
1094
for orig_interface_name, alt_interface_name in (
1095
alt_interface_names.items()):
1096
attr = {}
1097
interface_names = set()
1098
# Go though all attributes of the class
1099
for attrname, attribute in inspect.getmembers(cls):
1100
# Ignore non-D-Bus attributes, and D-Bus attributes
1101
# with the wrong interface name
1102
if (not hasattr(attribute, "_dbus_interface")
1103
or not attribute._dbus_interface.startswith(
1104
orig_interface_name)):
1105
continue
1106
# Create an alternate D-Bus interface name based on
1107
# the current name
1108
alt_interface = attribute._dbus_interface.replace(
1109
orig_interface_name, alt_interface_name)
1110
interface_names.add(alt_interface)
1111
# Is this a D-Bus signal?
1112
if getattr(attribute, "_dbus_is_signal", False):
1113
if sys.version_info.major == 2:
1114
# Extract the original non-method undecorated
1115
# function by black magic
1116
nonmethod_func = (dict(
1117
zip(attribute.func_code.co_freevars,
1118
attribute.__closure__))
1119
["func"].cell_contents)
1120
else:
1121
nonmethod_func = attribute
1122
# Create a new, but exactly alike, function
1123
# object, and decorate it to be a new D-Bus signal
1124
# with the alternate D-Bus interface name
1125
if sys.version_info.major == 2:
1126
new_function = types.FunctionType(
1127
nonmethod_func.func_code,
1128
nonmethod_func.func_globals,
1129
nonmethod_func.func_name,
1130
nonmethod_func.func_defaults,
1131
nonmethod_func.func_closure)
1132
else:
1133
new_function = types.FunctionType(
1134
nonmethod_func.__code__,
1135
nonmethod_func.__globals__,
1136
nonmethod_func.__name__,
1137
nonmethod_func.__defaults__,
1138
nonmethod_func.__closure__)
1139
new_function = (dbus.service.signal(
1140
alt_interface,
1141
attribute._dbus_signature)(new_function))
1142
# Copy annotations, if any
1143
try:
1144
new_function._dbus_annotations = dict(
1145
attribute._dbus_annotations)
1146
except AttributeError:
1147
pass
1148
# Define a creator of a function to call both the
1149
# original and alternate functions, so both the
1150
# original and alternate signals gets sent when
1151
# the function is called
1152
def fixscope(func1, func2):
1153
"""This function is a scope container to pass
1154
func1 and func2 to the "call_both" function
1155
outside of its arguments"""
1156
1157
def call_both(*args, **kwargs):
1158
"""This function will emit two D-Bus
1159
signals by calling func1 and func2"""
1160
func1(*args, **kwargs)
1161
func2(*args, **kwargs)
1162
1163
return call_both
1164
# Create the "call_both" function and add it to
1165
# the class
1166
attr[attrname] = fixscope(attribute, new_function)
1167
# Is this a D-Bus method?
1168
elif getattr(attribute, "_dbus_is_method", False):
1169
# Create a new, but exactly alike, function
1170
# object. Decorate it to be a new D-Bus method
1171
# with the alternate D-Bus interface name. Add it
1172
# to the class.
1173
attr[attrname] = (
1174
dbus.service.method(
1175
alt_interface,
1176
attribute._dbus_in_signature,
1177
attribute._dbus_out_signature)
1178
(types.FunctionType(attribute.func_code,
1179
attribute.func_globals,
1180
attribute.func_name,
1181
attribute.func_defaults,
1182
attribute.func_closure)))
1183
# Copy annotations, if any
1184
try:
1185
attr[attrname]._dbus_annotations = dict(
1186
attribute._dbus_annotations)
1187
except AttributeError:
1188
pass
1189
# Is this a D-Bus property?
1190
elif getattr(attribute, "_dbus_is_property", False):
1191
# Create a new, but exactly alike, function
1192
# object, and decorate it to be a new D-Bus
1193
# property with the alternate D-Bus interface
1194
# name. Add it to the class.
1195
attr[attrname] = (dbus_service_property(
1196
alt_interface, attribute._dbus_signature,
1197
attribute._dbus_access,
1198
attribute._dbus_get_args_options
1199
["byte_arrays"])
1200
(types.FunctionType(
1201
attribute.func_code,
1202
attribute.func_globals,
1203
attribute.func_name,
1204
attribute.func_defaults,
1205
attribute.func_closure)))
1206
# Copy annotations, if any
1207
try:
1208
attr[attrname]._dbus_annotations = dict(
1209
attribute._dbus_annotations)
1210
except AttributeError:
1211
pass
1212
# Is this a D-Bus interface?
1213
elif getattr(attribute, "_dbus_is_interface", False):
1214
# Create a new, but exactly alike, function
1215
# object. Decorate it to be a new D-Bus interface
1216
# with the alternate D-Bus interface name. Add it
1217
# to the class.
1218
attr[attrname] = (
1219
dbus_interface_annotations(alt_interface)
1220
(types.FunctionType(attribute.func_code,
1221
attribute.func_globals,
1222
attribute.func_name,
1223
attribute.func_defaults,
1224
attribute.func_closure)))
1225
if deprecate:
1226
# Deprecate all alternate interfaces
1227
iname="_AlternateDBusNames_interface_annotation{}"
1228
for interface_name in interface_names:
1229
1230
@dbus_interface_annotations(interface_name)
1231
def func(self):
1232
return { "org.freedesktop.DBus.Deprecated":
1233
"true" }
1234
# Find an unused name
1235
for aname in (iname.format(i)
1236
for i in itertools.count()):
1237
if aname not in attr:
1238
attr[aname] = func
1239
break
1240
if interface_names:
1241
# Replace the class with a new subclass of it with
1242
# methods, signals, etc. as created above.
1243
cls = type(b"{}Alternate".format(cls.__name__),
1244
(cls, ), attr)
1245
return cls
1246
1247
return wrapper
1248
1249
1250
@alternate_dbus_interfaces({"se.recompile.Mandos":
1251
"se.bsnet.fukt.Mandos"})
1252
740
class ClientDBus(Client, DBusObjectWithProperties):
1253
741
"""A Client class using D-Bus
1254
742
1258
746
"""
1259
747
1260
748
runtime_expansions = (Client.runtime_expansions
1261
+ ("dbus_object_path", ))
1262
1263
_interface = "se.recompile.Mandos.Client"
749
+ ("dbus_object_path",))
1264
750
1265
751
# dbus.service.Object doesn't use super(), so we can't either.
1266
752
1267
753
def __init__(self, bus = None, *args, **kwargs):
754
self._approvals_pending = 0
1268
755
self.bus = bus
1269
756
Client.__init__(self, *args, **kwargs)
1270
757
# Only now, when this client is initialized, can it show up on
1271
758
# the D-Bus
1272
client_object_name = str(self.name).translate(
759
client_object_name = unicode(self.name).translate(
1273
760
{ord("."): ord("_"),
1274
761
ord("-"): ord("_")})
1275
self.dbus_object_path = dbus.ObjectPath(
1276
"/clients/" + client_object_name)
762
self.dbus_object_path = (dbus.ObjectPath
763
("/clients/" + client_object_name))
1277
764
DBusObjectWithProperties.__init__(self, self.bus,
1278
765
self.dbus_object_path)
1279
1280
def notifychangeproperty(transform_func, dbus_name,
1281
type_func=lambda x: x,
1282
variant_level=1,
1283
invalidate_only=False,
1284
_interface=_interface):
1285
""" Modify a variable so that it's a property which announces
1286
its changes to DBus.
1287
1288
transform_fun: Function that takes a value and a variant_level
1289
and transforms it to a D-Bus type.
1290
dbus_name: D-Bus name of the variable
1291
type_func: Function that transform the value before sending it
1292
to the D-Bus. Default: no transform
1293
variant_level: D-Bus variant level. Default: 1
1294
"""
1295
attrname = "_{}".format(dbus_name)
1296
1297
def setter(self, value):
1298
if hasattr(self, "dbus_object_path"):
1299
if (not hasattr(self, attrname) or
1300
type_func(getattr(self, attrname, None))
1301
!= type_func(value)):
1302
if invalidate_only:
1303
self.PropertiesChanged(
1304
_interface, dbus.Dictionary(),
1305
dbus.Array((dbus_name, )))
1306
else:
1307
dbus_value = transform_func(
1308
type_func(value),
1309
variant_level = variant_level)
1310
self.PropertyChanged(dbus.String(dbus_name),
1311
dbus_value)
1312
self.PropertiesChanged(
1313
_interface,
1314
dbus.Dictionary({ dbus.String(dbus_name):
1315
dbus_value }),
1316
dbus.Array())
1317
setattr(self, attrname, value)
1318
1319
return property(lambda self: getattr(self, attrname), setter)
1320
1321
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1322
approvals_pending = notifychangeproperty(dbus.Boolean,
1323
"ApprovalPending",
1324
type_func = bool)
1325
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1326
last_enabled = notifychangeproperty(datetime_to_dbus,
1327
"LastEnabled")
1328
checker = notifychangeproperty(
1329
dbus.Boolean, "CheckerRunning",
1330
type_func = lambda checker: checker is not None)
1331
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1332
"LastCheckedOK")
1333
last_checker_status = notifychangeproperty(dbus.Int16,
1334
"LastCheckerStatus")
1335
last_approval_request = notifychangeproperty(
1336
datetime_to_dbus, "LastApprovalRequest")
1337
approved_by_default = notifychangeproperty(dbus.Boolean,
1338
"ApprovedByDefault")
1339
approval_delay = notifychangeproperty(
1340
dbus.UInt64, "ApprovalDelay",
1341
type_func = lambda td: td.total_seconds() * 1000)
1342
approval_duration = notifychangeproperty(
1343
dbus.UInt64, "ApprovalDuration",
1344
type_func = lambda td: td.total_seconds() * 1000)
1345
host = notifychangeproperty(dbus.String, "Host")
1346
timeout = notifychangeproperty(
1347
dbus.UInt64, "Timeout",
1348
type_func = lambda td: td.total_seconds() * 1000)
1349
extended_timeout = notifychangeproperty(
1350
dbus.UInt64, "ExtendedTimeout",
1351
type_func = lambda td: td.total_seconds() * 1000)
1352
interval = notifychangeproperty(
1353
dbus.UInt64, "Interval",
1354
type_func = lambda td: td.total_seconds() * 1000)
1355
checker_command = notifychangeproperty(dbus.String, "Checker")
1356
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1357
invalidate_only=True)
1358
1359
del notifychangeproperty
766
767
def _get_approvals_pending(self):
768
return self._approvals_pending
769
def _set_approvals_pending(self, value):
770
old_value = self._approvals_pending
771
self._approvals_pending = value
772
bval = bool(value)
773
if (hasattr(self, "dbus_object_path")
774
and bval is not bool(old_value)):
775
dbus_bool = dbus.Boolean(bval, variant_level=1)
776
self.PropertyChanged(dbus.String("ApprovalPending"),
777
dbus_bool)
778
779
approvals_pending = property(_get_approvals_pending,
780
_set_approvals_pending)
781
del _get_approvals_pending, _set_approvals_pending
782
783
@staticmethod
784
def _datetime_to_dbus(dt, variant_level=0):
785
"""Convert a UTC datetime.datetime() to a D-Bus type."""
786
return dbus.String(dt.isoformat(),
787
variant_level=variant_level)
788
789
def enable(self):
790
oldstate = getattr(self, "enabled", False)
791
r = Client.enable(self)
792
if oldstate != self.enabled:
793
# Emit D-Bus signals
794
self.PropertyChanged(dbus.String("Enabled"),
795
dbus.Boolean(True, variant_level=1))
796
self.PropertyChanged(
797
dbus.String("LastEnabled"),
798
self._datetime_to_dbus(self.last_enabled,
799
variant_level=1))
800
return r
801
802
def disable(self, quiet = False):
803
oldstate = getattr(self, "enabled", False)
804
r = Client.disable(self, quiet=quiet)
805
if not quiet and oldstate != self.enabled:
806
# Emit D-Bus signal
807
self.PropertyChanged(dbus.String("Enabled"),
808
dbus.Boolean(False, variant_level=1))
809
return r
1360
810
1361
811
def __del__(self, *args, **kwargs):
1362
812
try:
1367
817
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1368
818
Client.__del__(self, *args, **kwargs)
1369
819
1370
def checker_callback(self, source, condition,
1371
connection, command, *args, **kwargs):
1372
ret = Client.checker_callback(self, source, condition,
1373
connection, command, *args,
1374
**kwargs)
1375
exitstatus = self.last_checker_status
1376
if exitstatus >= 0:
820
def checker_callback(self, pid, condition, command,
821
*args, **kwargs):
822
self.checker_callback_tag = None
823
self.checker = None
824
# Emit D-Bus signal
825
self.PropertyChanged(dbus.String("CheckerRunning"),
826
dbus.Boolean(False, variant_level=1))
827
if os.WIFEXITED(condition):
828
exitstatus = os.WEXITSTATUS(condition)
1377
829
# Emit D-Bus signal
1378
830
self.CheckerCompleted(dbus.Int16(exitstatus),
1379
dbus.Int64(0),
831
dbus.Int64(condition),
1380
832
dbus.String(command))
1381
833
else:
1382
834
# Emit D-Bus signal
1383
835
self.CheckerCompleted(dbus.Int16(-1),
1384
dbus.Int64(
1385
self.last_checker_signal),
836
dbus.Int64(condition),
1386
837
dbus.String(command))
1387
return ret
838
839
return Client.checker_callback(self, pid, condition, command,
840
*args, **kwargs)
841
842
def checked_ok(self, *args, **kwargs):
843
Client.checked_ok(self, *args, **kwargs)
844
# Emit D-Bus signal
845
self.PropertyChanged(
846
dbus.String("LastCheckedOK"),
847
(self._datetime_to_dbus(self.last_checked_ok,
848
variant_level=1)))
849
850
def need_approval(self, *args, **kwargs):
851
r = Client.need_approval(self, *args, **kwargs)
852
# Emit D-Bus signal
853
self.PropertyChanged(
854
dbus.String("LastApprovalRequest"),
855
(self._datetime_to_dbus(self.last_approval_request,
856
variant_level=1)))
857
return r
1388
858
1389
859
def start_checker(self, *args, **kwargs):
1390
old_checker_pid = getattr(self.checker, "pid", None)
860
old_checker = self.checker
861
if self.checker is not None:
862
old_checker_pid = self.checker.pid
863
else:
864
old_checker_pid = None
1391
865
r = Client.start_checker(self, *args, **kwargs)
1392
866
# Only if new checker process was started
1393
867
if (self.checker is not None
1394
868
and old_checker_pid != self.checker.pid):
1395
869
# Emit D-Bus signal
1396
870
self.CheckerStarted(self.current_checker_command)
871
self.PropertyChanged(
872
dbus.String("CheckerRunning"),
873
dbus.Boolean(True, variant_level=1))
1397
874
return r
1398
875
876
def stop_checker(self, *args, **kwargs):
877
old_checker = getattr(self, "checker", None)
878
r = Client.stop_checker(self, *args, **kwargs)
879
if (old_checker is not None
880
and getattr(self, "checker", None) is None):
881
self.PropertyChanged(dbus.String("CheckerRunning"),
882
dbus.Boolean(False, variant_level=1))
883
return r
884
1399
885
def _reset_approved(self):
1400
self.approved = None
886
self._approved = None
1401
887
return False
1402
888
1403
889
def approve(self, value=True):
1404
self.approved = value
1405
gobject.timeout_add(int(self.approval_duration.total_seconds()
1406
* 1000), self._reset_approved)
1407
890
self.send_changedstate()
891
self._approved = value
892
gobject.timeout_add(self._timedelta_to_milliseconds
893
(self.approval_duration),
894
self._reset_approved)
895
1408
896
1409
897
## D-Bus methods, signals & properties
1410
1411
## Interfaces
898
_interface = "se.bsnet.fukt.Mandos.Client"
1412
899
1413
900
## Signals
1414
901
1425
912
pass
1426
913
1427
914
# PropertyChanged - signal
1428
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1429
915
@dbus.service.signal(_interface, signature="sv")
1430
916
def PropertyChanged(self, property, value):
1431
917
"D-Bus signal"
1495
981
return dbus.Boolean(bool(self.approvals_pending))
1496
982
1497
983
# ApprovedByDefault - property
1498
@dbus_service_property(_interface,
1499
signature="b",
984
@dbus_service_property(_interface, signature="b",
1500
985
access="readwrite")
1501
986
def ApprovedByDefault_dbus_property(self, value=None):
1502
987
if value is None: # get
1503
988
return dbus.Boolean(self.approved_by_default)
1504
989
self.approved_by_default = bool(value)
990
# Emit D-Bus signal
991
self.PropertyChanged(dbus.String("ApprovedByDefault"),
992
dbus.Boolean(value, variant_level=1))
1505
993
1506
994
# ApprovalDelay - property
1507
@dbus_service_property(_interface,
1508
signature="t",
995
@dbus_service_property(_interface, signature="t",
1509
996
access="readwrite")
1510
997
def ApprovalDelay_dbus_property(self, value=None):
1511
998
if value is None: # get
1512
return dbus.UInt64(self.approval_delay.total_seconds()
1513
* 1000)
999
return dbus.UInt64(self.approval_delay_milliseconds())
1514
1000
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1001
# Emit D-Bus signal
1002
self.PropertyChanged(dbus.String("ApprovalDelay"),
1003
dbus.UInt64(value, variant_level=1))
1515
1004
1516
1005
# ApprovalDuration - property
1517
@dbus_service_property(_interface,
1518
signature="t",
1006
@dbus_service_property(_interface, signature="t",
1519
1007
access="readwrite")
1520
1008
def ApprovalDuration_dbus_property(self, value=None):
1521
1009
if value is None: # get
1522
return dbus.UInt64(self.approval_duration.total_seconds()
1523
* 1000)
1010
return dbus.UInt64(self._timedelta_to_milliseconds(
1011
self.approval_duration))
1524
1012
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1013
# Emit D-Bus signal
1014
self.PropertyChanged(dbus.String("ApprovalDuration"),
1015
dbus.UInt64(value, variant_level=1))
1525
1016
1526
1017
# Name - property
1527
1018
@dbus_service_property(_interface, signature="s", access="read")
1534
1025
return dbus.String(self.fingerprint)
1535
1026
1536
1027
# Host - property
1537
@dbus_service_property(_interface,
1538
signature="s",
1028
@dbus_service_property(_interface, signature="s",
1539
1029
access="readwrite")
1540
1030
def Host_dbus_property(self, value=None):
1541
1031
if value is None: # get
1542
1032
return dbus.String(self.host)
1543
self.host = str(value)
1033
self.host = value
1034
# Emit D-Bus signal
1035
self.PropertyChanged(dbus.String("Host"),
1036
dbus.String(value, variant_level=1))
1544
1037
1545
1038
# Created - property
1546
1039
@dbus_service_property(_interface, signature="s", access="read")
1547
1040
def Created_dbus_property(self):
1548
return datetime_to_dbus(self.created)
1041
return dbus.String(self._datetime_to_dbus(self.created))
1549
1042
1550
1043
# LastEnabled - property
1551
1044
@dbus_service_property(_interface, signature="s", access="read")
1552
1045
def LastEnabled_dbus_property(self):
1553
return datetime_to_dbus(self.last_enabled)
1046
if self.last_enabled is None:
1047
return dbus.String("")
1048
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1554
1049
1555
1050
# Enabled - property
1556
@dbus_service_property(_interface,
1557
signature="b",
1051
@dbus_service_property(_interface, signature="b",
1558
1052
access="readwrite")
1559
1053
def Enabled_dbus_property(self, value=None):
1560
1054
if value is None: # get
1565
1059
self.disable()
1566
1060
1567
1061
# LastCheckedOK - property
1568
@dbus_service_property(_interface,
1569
signature="s",
1062
@dbus_service_property(_interface, signature="s",
1570
1063
access="readwrite")
1571
1064
def LastCheckedOK_dbus_property(self, value=None):
1572
1065
if value is not None:
1573
1066
self.checked_ok()
1574
1067
return
1575
return datetime_to_dbus(self.last_checked_ok)
1576
1577
# LastCheckerStatus - property
1578
@dbus_service_property(_interface, signature="n", access="read")
1579
def LastCheckerStatus_dbus_property(self):
1580
return dbus.Int16(self.last_checker_status)
1581
1582
# Expires - property
1583
@dbus_service_property(_interface, signature="s", access="read")
1584
def Expires_dbus_property(self):
1585
return datetime_to_dbus(self.expires)
1068
if self.last_checked_ok is None:
1069
return dbus.String("")
1070
return dbus.String(self._datetime_to_dbus(self
1071
.last_checked_ok))
1586
1072
1587
1073
# LastApprovalRequest - property
1588
1074
@dbus_service_property(_interface, signature="s", access="read")
1589
1075
def LastApprovalRequest_dbus_property(self):
1590
return datetime_to_dbus(self.last_approval_request)
1076
if self.last_approval_request is None:
1077
return dbus.String("")
1078
return dbus.String(self.
1079
_datetime_to_dbus(self
1080
.last_approval_request))
1591
1081
1592
1082
# Timeout - property
1593
@dbus_service_property(_interface,
1594
signature="t",
1083
@dbus_service_property(_interface, signature="t",
1595
1084
access="readwrite")
1596
1085
def Timeout_dbus_property(self, value=None):
1597
1086
if value is None: # get
1598
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1599
old_timeout = self.timeout
1087
return dbus.UInt64(self.timeout_milliseconds())
1600
1088
self.timeout = datetime.timedelta(0, 0, 0, value)
1601
# Reschedule disabling
1602
if self.enabled:
1603
now = datetime.datetime.utcnow()
1604
self.expires += self.timeout - old_timeout
1605
if self.expires <= now:
1606
# The timeout has passed
1607
self.disable()
1608
else:
1609
if (getattr(self, "disable_initiator_tag", None)
1610
is None):
1611
return
1612
gobject.source_remove(self.disable_initiator_tag)
1613
self.disable_initiator_tag = gobject.timeout_add(
1614
int((self.expires - now).total_seconds() * 1000),
1615
self.disable)
1616
1617
# ExtendedTimeout - property
1618
@dbus_service_property(_interface,
1619
signature="t",
1620
access="readwrite")
1621
def ExtendedTimeout_dbus_property(self, value=None):
1622
if value is None: # get
1623
return dbus.UInt64(self.extended_timeout.total_seconds()
1624
* 1000)
1625
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1089
# Emit D-Bus signal
1090
self.PropertyChanged(dbus.String("Timeout"),
1091
dbus.UInt64(value, variant_level=1))
1092
if getattr(self, "disable_initiator_tag", None) is None:
1093
return
1094
# Reschedule timeout
1095
gobject.source_remove(self.disable_initiator_tag)
1096
self.disable_initiator_tag = None
1097
time_to_die = (self.
1098
_timedelta_to_milliseconds((self
1099
.last_checked_ok
1100
+ self.timeout)
1101
- datetime.datetime
1102
.utcnow()))
1103
if time_to_die <= 0:
1104
# The timeout has passed
1105
self.disable()
1106
else:
1107
self.disable_initiator_tag = (gobject.timeout_add
1108
(time_to_die, self.disable))
1626
1109
1627
1110
# Interval - property
1628
@dbus_service_property(_interface,
1629
signature="t",
1111
@dbus_service_property(_interface, signature="t",
1630
1112
access="readwrite")
1631
1113
def Interval_dbus_property(self, value=None):
1632
1114
if value is None: # get
1633
return dbus.UInt64(self.interval.total_seconds() * 1000)
1115
return dbus.UInt64(self.interval_milliseconds())
1634
1116
self.interval = datetime.timedelta(0, 0, 0, value)
1117
# Emit D-Bus signal
1118
self.PropertyChanged(dbus.String("Interval"),
1119
dbus.UInt64(value, variant_level=1))
1635
1120
if getattr(self, "checker_initiator_tag", None) is None:
1636
1121
return
1637
if self.enabled:
1638
# Reschedule checker run
1639
gobject.source_remove(self.checker_initiator_tag)
1640
self.checker_initiator_tag = gobject.timeout_add(
1641
value, self.start_checker)
1642
self.start_checker() # Start one now, too
1643
1122
# Reschedule checker run
1123
gobject.source_remove(self.checker_initiator_tag)
1124
self.checker_initiator_tag = (gobject.timeout_add
1125
(value, self.start_checker))
1126
self.start_checker() # Start one now, too
1127
1644
1128
# Checker - property
1645
@dbus_service_property(_interface,
1646
signature="s",
1129
@dbus_service_property(_interface, signature="s",
1647
1130
access="readwrite")
1648
1131
def Checker_dbus_property(self, value=None):
1649
1132
if value is None: # get
1650
1133
return dbus.String(self.checker_command)
1651
self.checker_command = str(value)
1134
self.checker_command = value
1135
# Emit D-Bus signal
1136
self.PropertyChanged(dbus.String("Checker"),
1137
dbus.String(self.checker_command,
1138
variant_level=1))
1652
1139
1653
1140
# CheckerRunning - property
1654
@dbus_service_property(_interface,
1655
signature="b",
1141
@dbus_service_property(_interface, signature="b",
1656
1142
access="readwrite")
1657
1143
def CheckerRunning_dbus_property(self, value=None):
1658
1144
if value is None: # get
1668
1154
return self.dbus_object_path # is already a dbus.ObjectPath
1669
1155
1670
1156
# Secret = property
1671
@dbus_service_property(_interface,
1672
signature="ay",
1673
access="write",
1674
byte_arrays=True)
1157
@dbus_service_property(_interface, signature="ay",
1158
access="write", byte_arrays=True)
1675
1159
def Secret_dbus_property(self, value):
1676
self.secret = bytes(value)
1160
self.secret = str(value)
1677
1161
1678
1162
del _interface
1679
1163
1683
1167
self._pipe = child_pipe
1684
1168
self._pipe.send(('init', fpr, address))
1685
1169
if not self._pipe.recv():
1686
raise KeyError(fpr)
1687
1170
raise KeyError()
1171
1688
1172
def __getattribute__(self, name):
1689
if name == '_pipe':
1173
if(name == '_pipe'):
1690
1174
return super(ProxyClient, self).__getattribute__(name)
1691
1175
self._pipe.send(('getattr', name))
1692
1176
data = self._pipe.recv()
1693
1177
if data[0] == 'data':
1694
1178
return data[1]
1695
1179
if data[0] == 'function':
1696
1697
1180
def func(*args, **kwargs):
1698
1181
self._pipe.send(('funcall', name, args, kwargs))
1699
1182
return self._pipe.recv()[1]
1700
1701
1183
return func
1702
1184
1703
1185
def __setattr__(self, name, value):
1704
if name == '_pipe':
1186
if(name == '_pipe'):
1705
1187
return super(ProxyClient, self).__setattr__(name, value)
1706
1188
self._pipe.send(('setattr', name, value))
1707
1189
1715
1197
def handle(self):
1716
1198
with contextlib.closing(self.server.child_pipe) as child_pipe:
1717
1199
logger.info("TCP connection from: %s",
1718
str(self.client_address))
1200
unicode(self.client_address))
1719
1201
logger.debug("Pipe FD: %d",
1720
1202
self.server.child_pipe.fileno())
1721
1722
session = gnutls.connection.ClientSession(
1723
self.request, gnutls.connection .X509Credentials())
1724
1203
1204
session = (gnutls.connection
1205
.ClientSession(self.request,
1206
gnutls.connection
1207
.X509Credentials()))
1208
1725
1209
# Note: gnutls.connection.X509Credentials is really a
1726
1210
# generic GnuTLS certificate credentials object so long as
1727
1211
# no X.509 keys are added to it. Therefore, we can use it
1728
1212
# here despite using OpenPGP certificates.
1729
1213
1730
1214
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1731
1215
# "+AES-256-CBC", "+SHA1",
1732
1216
# "+COMP-NULL", "+CTYPE-OPENPGP",
1735
1219
priority = self.server.gnutls_priority
1736
1220
if priority is None:
1737
1221
priority = "NORMAL"
1738
gnutls.library.functions.gnutls_priority_set_direct(
1739
session._c_object, priority, None)
1740
1222
(gnutls.library.functions
1223
.gnutls_priority_set_direct(session._c_object,
1224
priority, None))
1225
1741
1226
# Start communication using the Mandos protocol
1742
1227
# Get protocol number
1743
1228
line = self.request.makefile().readline()
1744
1229
logger.debug("Protocol version: %r", line)
1745
1230
try:
1746
1231
if int(line.strip().split()[0]) > 1:
1747
raise RuntimeError(line)
1232
raise RuntimeError
1748
1233
except (ValueError, IndexError, RuntimeError) as error:
1749
1234
logger.error("Unknown protocol version: %s", error)
1750
1235
return
1751
1236
1752
1237
# Start GnuTLS connection
1753
1238
try:
1754
1239
session.handshake()
1758
1243
# established. Just abandon the request.
1759
1244
return
1760
1245
logger.debug("Handshake succeeded")
1761
1246
1762
1247
approval_required = False
1763
1248
try:
1764
1249
try:
1765
fpr = self.fingerprint(
1766
self.peer_certificate(session))
1250
fpr = self.fingerprint(self.peer_certificate
1251
(session))
1767
1252
except (TypeError,
1768
1253
gnutls.errors.GNUTLSError) as error:
1769
1254
logger.warning("Bad certificate: %s", error)
1770
1255
return
1771
1256
logger.debug("Fingerprint: %s", fpr)
1772
1257
1773
1258
try:
1774
1259
client = ProxyClient(child_pipe, fpr,
1775
1260
self.client_address)
1784
1269
while True:
1785
1270
if not client.enabled:
1786
1271
logger.info("Client %s is disabled",
1787
client.name)
1272
client.name)
1788
1273
if self.server.use_dbus:
1789
1274
# Emit D-Bus signal
1790
client.Rejected("Disabled")
1275
client.Rejected("Disabled")
1791
1276
return
1792
1277
1793
if client.approved or not client.approval_delay:
1278
if client._approved or not client.approval_delay:
1794
1279
#We are approved or approval is disabled
1795
1280
break
1796
elif client.approved is None:
1281
elif client._approved is None:
1797
1282
logger.info("Client %s needs approval",
1798
1283
client.name)
1799
1284
if self.server.use_dbus:
1800
1285
# Emit D-Bus signal
1801
1286
client.NeedApproval(
1802
client.approval_delay.total_seconds()
1803
* 1000, client.approved_by_default)
1287
client.approval_delay_milliseconds(),
1288
client.approved_by_default)
1804
1289
else:
1805
1290
logger.warning("Client %s was not approved",
1806
1291
client.name)
1810
1295
return
1811
1296
1812
1297
#wait until timeout or approved
1298
#x = float(client._timedelta_to_milliseconds(delay))
1813
1299
time = datetime.datetime.now()
1814
1300
client.changedstate.acquire()
1815
client.changedstate.wait(delay.total_seconds())
1301
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1816
1302
client.changedstate.release()
1817
1303
time2 = datetime.datetime.now()
1818
1304
if (time2 - time) >= delay:
1834
1320
try:
1835
1321
sent = session.send(client.secret[sent_size:])
1836
1322
except gnutls.errors.GNUTLSError as error:
1837
logger.warning("gnutls send failed",
1838
exc_info=error)
1323
logger.warning("gnutls send failed")
1839
1324
return
1840
logger.debug("Sent: %d, remaining: %d", sent,
1841
len(client.secret) - (sent_size
1842
+ sent))
1325
logger.debug("Sent: %d, remaining: %d",
1326
sent, len(client.secret)
1327
- (sent_size + sent))
1843
1328
sent_size += sent
1844
1329
1845
1330
logger.info("Sending secret to %s", client.name)
1846
# bump the timeout using extended_timeout
1847
client.bump_timeout(client.extended_timeout)
1331
# bump the timeout as if seen
1332
client.checked_ok()
1848
1333
if self.server.use_dbus:
1849
1334
# Emit D-Bus signal
1850
1335
client.GotSecret()
1855
1340
try:
1856
1341
session.bye()
1857
1342
except gnutls.errors.GNUTLSError as error:
1858
logger.warning("GnuTLS bye failed",
1859
exc_info=error)
1343
logger.warning("GnuTLS bye failed")
1860
1344
1861
1345
@staticmethod
1862
1346
def peer_certificate(session):
1863
1347
"Return the peer's OpenPGP certificate as a bytestring"
1864
1348
# If not an OpenPGP certificate...
1865
if (gnutls.library.functions.gnutls_certificate_type_get(
1866
session._c_object)
1349
if (gnutls.library.functions
1350
.gnutls_certificate_type_get(session._c_object)
1867
1351
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1868
1352
# ...do the normal thing
1869
1353
return session.peer_certificate
1883
1367
def fingerprint(openpgp):
1884
1368
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1885
1369
# New GnuTLS "datum" with the OpenPGP public key
1886
datum = gnutls.library.types.gnutls_datum_t(
1887
ctypes.cast(ctypes.c_char_p(openpgp),
1888
ctypes.POINTER(ctypes.c_ubyte)),
1889
ctypes.c_uint(len(openpgp)))
1370
datum = (gnutls.library.types
1371
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1372
ctypes.POINTER
1373
(ctypes.c_ubyte)),
1374
ctypes.c_uint(len(openpgp))))
1890
1375
# New empty GnuTLS certificate
1891
1376
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1892
gnutls.library.functions.gnutls_openpgp_crt_init(
1893
ctypes.byref(crt))
1377
(gnutls.library.functions
1378
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1894
1379
# Import the OpenPGP public key into the certificate
1895
gnutls.library.functions.gnutls_openpgp_crt_import(
1896
crt, ctypes.byref(datum),
1897
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1380
(gnutls.library.functions
1381
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1382
gnutls.library.constants
1383
.GNUTLS_OPENPGP_FMT_RAW))
1898
1384
# Verify the self signature in the key
1899
1385
crtverify = ctypes.c_uint()
1900
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1901
crt, 0, ctypes.byref(crtverify))
1386
(gnutls.library.functions
1387
.gnutls_openpgp_crt_verify_self(crt, 0,
1388
ctypes.byref(crtverify)))
1902
1389
if crtverify.value != 0:
1903
1390
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1904
raise gnutls.errors.CertificateSecurityError(
1905
"Verify failed")
1391
raise (gnutls.errors.CertificateSecurityError
1392
("Verify failed"))
1906
1393
# New buffer for the fingerprint
1907
1394
buf = ctypes.create_string_buffer(20)
1908
1395
buf_len = ctypes.c_size_t()
1909
1396
# Get the fingerprint from the certificate into the buffer
1910
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1911
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1397
(gnutls.library.functions
1398
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1399
ctypes.byref(buf_len)))
1912
1400
# Deinit the certificate
1913
1401
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1914
1402
# Convert the buffer to a Python bytestring
1915
1403
fpr = ctypes.string_at(buf, buf_len.value)
1916
1404
# Convert the bytestring to hexadecimal notation
1917
hex_fpr = binascii.hexlify(fpr).upper()
1405
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1918
1406
return hex_fpr
1919
1407
1920
1408
1921
1409
class MultiprocessingMixIn(object):
1922
1410
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1923
1924
1411
def sub_process_main(self, request, address):
1925
1412
try:
1926
1413
self.finish_request(request, address)
1927
except Exception:
1414
except:
1928
1415
self.handle_error(request, address)
1929
1416
self.close_request(request)
1930
1417
1931
1418
def process_request(self, request, address):
1932
1419
"""Start a new process to process the request."""
1933
proc = multiprocessing.Process(target = self.sub_process_main,
1934
args = (request, address))
1935
proc.start()
1936
return proc
1937
1420
multiprocessing.Process(target = self.sub_process_main,
1421
args = (request, address)).start()
1938
1422
1939
1423
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1940
1424
""" adds a pipe to the MixIn """
1941
1942
1425
def process_request(self, request, client_address):
1943
1426
"""Overrides and wraps the original process_request().
1944
1427
1945
1428
This function creates a new pipe in self.pipe
1946
1429
"""
1947
1430
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1948
1949
proc = MultiprocessingMixIn.process_request(self, request,
1950
client_address)
1431
1432
super(MultiprocessingMixInWithPipe,
1433
self).process_request(request, client_address)
1951
1434
self.child_pipe.close()
1952
self.add_pipe(parent_pipe, proc)
1953
1954
def add_pipe(self, parent_pipe, proc):
1435
self.add_pipe(parent_pipe)
1436
1437
def add_pipe(self, parent_pipe):
1955
1438
"""Dummy function; override as necessary"""
1956
raise NotImplementedError()
1957
1439
raise NotImplementedError
1958
1440
1959
1441
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1960
1442
socketserver.TCPServer, object):
1965
1447
interface: None or a network interface name (string)
1966
1448
use_ipv6: Boolean; to use IPv6 or not
1967
1449
"""
1968
1969
1450
def __init__(self, server_address, RequestHandlerClass,
1970
interface=None,
1971
use_ipv6=True,
1972
socketfd=None):
1973
"""If socketfd is set, use that file descriptor instead of
1974
creating a new one with socket.socket().
1975
"""
1451
interface=None, use_ipv6=True):
1976
1452
self.interface = interface
1977
1453
if use_ipv6:
1978
1454
self.address_family = socket.AF_INET6
1979
if socketfd is not None:
1980
# Save the file descriptor
1981
self.socketfd = socketfd
1982
# Save the original socket.socket() function
1983
self.socket_socket = socket.socket
1984
# To implement --socket, we monkey patch socket.socket.
1985
#
1986
# (When socketserver.TCPServer is a new-style class, we
1987
# could make self.socket into a property instead of monkey
1988
# patching socket.socket.)
1989
#
1990
# Create a one-time-only replacement for socket.socket()
1991
@functools.wraps(socket.socket)
1992
def socket_wrapper(*args, **kwargs):
1993
# Restore original function so subsequent calls are
1994
# not affected.
1995
socket.socket = self.socket_socket
1996
del self.socket_socket
1997
# This time only, return a new socket object from the
1998
# saved file descriptor.
1999
return socket.fromfd(self.socketfd, *args, **kwargs)
2000
# Replace socket.socket() function with wrapper
2001
socket.socket = socket_wrapper
2002
# The socketserver.TCPServer.__init__ will call
2003
# socket.socket(), which might be our replacement,
2004
# socket_wrapper(), if socketfd was set.
2005
1455
socketserver.TCPServer.__init__(self, server_address,
2006
1456
RequestHandlerClass)
2007
2008
1457
def server_bind(self):
2009
1458
"""This overrides the normal server_bind() function
2010
1459
to bind to an interface if one was specified, and also NOT to
2016
1465
self.interface)
2017
1466
else:
2018
1467
try:
2019
self.socket.setsockopt(
2020
socket.SOL_SOCKET, SO_BINDTODEVICE,
2021
(self.interface + "\0").encode("utf-8"))
1468
self.socket.setsockopt(socket.SOL_SOCKET,
1469
SO_BINDTODEVICE,
1470
str(self.interface
1471
+ '\0'))
2022
1472
except socket.error as error:
2023
if error.errno == errno.EPERM:
2024
logger.error("No permission to bind to"
2025
" interface %s", self.interface)
2026
elif error.errno == errno.ENOPROTOOPT:
1473
if error[0] == errno.EPERM:
1474
logger.error("No permission to"
1475
" bind to interface %s",
1476
self.interface)
1477
elif error[0] == errno.ENOPROTOOPT:
2027
1478
logger.error("SO_BINDTODEVICE not available;"
2028
1479
" cannot bind to interface %s",
2029
1480
self.interface)
2030
elif error.errno == errno.ENODEV:
2031
logger.error("Interface %s does not exist,"
2032
" cannot bind", self.interface)
2033
1481
else:
2034
1482
raise
2035
1483
# Only bind(2) the socket if we really need to.
2038
1486
if self.address_family == socket.AF_INET6:
2039
1487
any_address = "::" # in6addr_any
2040
1488
else:
2041
any_address = "0.0.0.0" # INADDR_ANY
1489
any_address = socket.INADDR_ANY
2042
1490
self.server_address = (any_address,
2043
1491
self.server_address[1])
2044
1492
elif not self.server_address[1]:
2045
self.server_address = (self.server_address[0], 0)
1493
self.server_address = (self.server_address[0],
1494
0)
2046
1495
# if self.interface:
2047
1496
# self.server_address = (self.server_address[0],
2048
1497
# 0, # port
2062
1511
2063
1512
Assumes a gobject.MainLoop event loop.
2064
1513
"""
2065
2066
1514
def __init__(self, server_address, RequestHandlerClass,
2067
interface=None,
2068
use_ipv6=True,
2069
clients=None,
2070
gnutls_priority=None,
2071
use_dbus=True,
2072
socketfd=None):
1515
interface=None, use_ipv6=True, clients=None,
1516
gnutls_priority=None, use_dbus=True):
2073
1517
self.enabled = False
2074
1518
self.clients = clients
2075
1519
if self.clients is None:
2076
self.clients = {}
1520
self.clients = set()
2077
1521
self.use_dbus = use_dbus
2078
1522
self.gnutls_priority = gnutls_priority
2079
1523
IPv6_TCPServer.__init__(self, server_address,
2080
1524
RequestHandlerClass,
2081
1525
interface = interface,
2082
use_ipv6 = use_ipv6,
2083
socketfd = socketfd)
2084
1526
use_ipv6 = use_ipv6)
2085
1527
def server_activate(self):
2086
1528
if self.enabled:
2087
1529
return socketserver.TCPServer.server_activate(self)
2088
2089
1530
def enable(self):
2090
1531
self.enabled = True
2091
2092
def add_pipe(self, parent_pipe, proc):
1532
def add_pipe(self, parent_pipe):
2093
1533
# Call "handle_ipc" for both data and EOF events
2094
gobject.io_add_watch(
2095
parent_pipe.fileno(),
2096
gobject.IO_IN | gobject.IO_HUP,
2097
functools.partial(self.handle_ipc,
2098
parent_pipe = parent_pipe,
2099
proc = proc))
2100
2101
def handle_ipc(self, source, condition,
2102
parent_pipe=None,
2103
proc = None,
1534
gobject.io_add_watch(parent_pipe.fileno(),
1535
gobject.IO_IN | gobject.IO_HUP,
1536
functools.partial(self.handle_ipc,
1537
parent_pipe = parent_pipe))
1538
1539
def handle_ipc(self, source, condition, parent_pipe=None,
2104
1540
client_object=None):
2105
# error, or the other end of multiprocessing.Pipe has closed
2106
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2107
# Wait for other process to exit
2108
proc.join()
1541
condition_names = {
1542
gobject.IO_IN: "IN", # There is data to read.
1543
gobject.IO_OUT: "OUT", # Data can be written (without
1544
# blocking).
1545
gobject.IO_PRI: "PRI", # There is urgent data to read.
1546
gobject.IO_ERR: "ERR", # Error condition.
1547
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1548
# broken, usually for pipes and
1549
# sockets).
1550
}
1551
conditions_string = ' | '.join(name
1552
for cond, name in
1553
condition_names.iteritems()
1554
if cond & condition)
1555
# error or the other end of multiprocessing.Pipe has closed
1556
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2109
1557
return False
2110
1558
2111
1559
# Read a request from the child
2116
1564
fpr = request[1]
2117
1565
address = request[2]
2118
1566
2119
for c in self.clients.itervalues():
1567
for c in self.clients:
2120
1568
if c.fingerprint == fpr:
2121
1569
client = c
2122
1570
break
2125
1573
"dress: %s", fpr, address)
2126
1574
if self.use_dbus:
2127
1575
# Emit D-Bus signal
2128
mandos_dbus_service.ClientNotFound(fpr,
2129
address[0])
1576
mandos_dbus_service.ClientNotFound(fpr, address[0])
2130
1577
parent_pipe.send(False)
2131
1578
return False
2132
1579
2133
gobject.io_add_watch(
2134
parent_pipe.fileno(),
2135
gobject.IO_IN | gobject.IO_HUP,
2136
functools.partial(self.handle_ipc,
2137
parent_pipe = parent_pipe,
2138
proc = proc,
2139
client_object = client))
1580
gobject.io_add_watch(parent_pipe.fileno(),
1581
gobject.IO_IN | gobject.IO_HUP,
1582
functools.partial(self.handle_ipc,
1583
parent_pipe = parent_pipe,
1584
client_object = client))
2140
1585
parent_pipe.send(True)
2141
# remove the old hook in favor of the new above hook on
2142
# same fileno
1586
# remove the old hook in favor of the new above hook on same fileno
2143
1587
return False
2144
1588
if command == 'funcall':
2145
1589
funcname = request[1]
2146
1590
args = request[2]
2147
1591
kwargs = request[3]
2148
1592
2149
parent_pipe.send(('data', getattr(client_object,
2150
funcname)(*args,
2151
**kwargs)))
2152
1593
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1594
2153
1595
if command == 'getattr':
2154
1596
attrname = request[1]
2155
if isinstance(client_object.__getattribute__(attrname),
2156
collections.Callable):
2157
parent_pipe.send(('function', ))
1597
if callable(client_object.__getattribute__(attrname)):
1598
parent_pipe.send(('function',))
2158
1599
else:
2159
parent_pipe.send((
2160
'data', client_object.__getattribute__(attrname)))
1600
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2161
1601
2162
1602
if command == 'setattr':
2163
1603
attrname = request[1]
2164
1604
value = request[2]
2165
1605
setattr(client_object, attrname, value)
2166
1606
2167
1607
return True
2168
1608
2169
1609
2170
def rfc3339_duration_to_delta(duration):
2171
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2172
2173
>>> rfc3339_duration_to_delta("P7D")
2174
datetime.timedelta(7)
2175
>>> rfc3339_duration_to_delta("PT60S")
2176
datetime.timedelta(0, 60)
2177
>>> rfc3339_duration_to_delta("PT60M")
2178
datetime.timedelta(0, 3600)
2179
>>> rfc3339_duration_to_delta("PT24H")
2180
datetime.timedelta(1)
2181
>>> rfc3339_duration_to_delta("P1W")
2182
datetime.timedelta(7)
2183
>>> rfc3339_duration_to_delta("PT5M30S")
2184
datetime.timedelta(0, 330)
2185
>>> rfc3339_duration_to_delta("P1DT3M20S")
2186
datetime.timedelta(1, 200)
2187
"""
2188
2189
# Parsing an RFC 3339 duration with regular expressions is not
2190
# possible - there would have to be multiple places for the same
2191
# values, like seconds. The current code, while more esoteric, is
2192
# cleaner without depending on a parsing library. If Python had a
2193
# built-in library for parsing we would use it, but we'd like to
2194
# avoid excessive use of external libraries.
2195
2196
# New type for defining tokens, syntax, and semantics all-in-one
2197
Token = collections.namedtuple("Token", (
2198
"regexp", # To match token; if "value" is not None, must have
2199
# a "group" containing digits
2200
"value", # datetime.timedelta or None
2201
"followers")) # Tokens valid after this token
2202
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2203
# the "duration" ABNF definition in RFC 3339, Appendix A.
2204
token_end = Token(re.compile(r"$"), None, frozenset())
2205
token_second = Token(re.compile(r"(\d+)S"),
2206
datetime.timedelta(seconds=1),
2207
frozenset((token_end, )))
2208
token_minute = Token(re.compile(r"(\d+)M"),
2209
datetime.timedelta(minutes=1),
2210
frozenset((token_second, token_end)))
2211
token_hour = Token(re.compile(r"(\d+)H"),
2212
datetime.timedelta(hours=1),
2213
frozenset((token_minute, token_end)))
2214
token_time = Token(re.compile(r"T"),
2215
None,
2216
frozenset((token_hour, token_minute,
2217
token_second)))
2218
token_day = Token(re.compile(r"(\d+)D"),
2219
datetime.timedelta(days=1),
2220
frozenset((token_time, token_end)))
2221
token_month = Token(re.compile(r"(\d+)M"),
2222
datetime.timedelta(weeks=4),
2223
frozenset((token_day, token_end)))
2224
token_year = Token(re.compile(r"(\d+)Y"),
2225
datetime.timedelta(weeks=52),
2226
frozenset((token_month, token_end)))
2227
token_week = Token(re.compile(r"(\d+)W"),
2228
datetime.timedelta(weeks=1),
2229
frozenset((token_end, )))
2230
token_duration = Token(re.compile(r"P"), None,
2231
frozenset((token_year, token_month,
2232
token_day, token_time,
2233
token_week)))
2234
# Define starting values
2235
value = datetime.timedelta() # Value so far
2236
found_token = None
2237
followers = frozenset((token_duration, )) # Following valid tokens
2238
s = duration # String left to parse
2239
# Loop until end token is found
2240
while found_token is not token_end:
2241
# Search for any currently valid tokens
2242
for token in followers:
2243
match = token.regexp.match(s)
2244
if match is not None:
2245
# Token found
2246
if token.value is not None:
2247
# Value found, parse digits
2248
factor = int(match.group(1), 10)
2249
# Add to value so far
2250
value += factor * token.value
2251
# Strip token from string
2252
s = token.regexp.sub("", s, 1)
2253
# Go to found token
2254
found_token = token
2255
# Set valid next tokens
2256
followers = found_token.followers
2257
break
2258
else:
2259
# No currently valid tokens were found
2260
raise ValueError("Invalid RFC 3339 duration: {!r}"
2261
.format(duration))
2262
# End token found
2263
return value
2264
2265
2266
1610
def string_to_delta(interval):
2267
1611
"""Parse a string and return a datetime.timedelta
2268
1612
2279
1623
>>> string_to_delta('5m 30s')
2280
1624
datetime.timedelta(0, 330)
2281
1625
"""
2282
2283
try:
2284
return rfc3339_duration_to_delta(interval)
2285
except ValueError:
2286
pass
2287
2288
1626
timevalue = datetime.timedelta(0)
2289
1627
for s in interval.split():
2290
1628
try:
2291
suffix = s[-1]
1629
suffix = unicode(s[-1])
2292
1630
value = int(s[:-1])
2293
1631
if suffix == "d":
2294
1632
delta = datetime.timedelta(value)
2301
1639
elif suffix == "w":
2302
1640
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2303
1641
else:
2304
raise ValueError("Unknown suffix {!r}".format(suffix))
2305
except IndexError as e:
1642
raise ValueError("Unknown suffix %r" % suffix)
1643
except (ValueError, IndexError) as e:
2306
1644
raise ValueError(*(e.args))
2307
1645
timevalue += delta
2308
1646
return timevalue
2309
1647
2310
1648
1649
def if_nametoindex(interface):
1650
"""Call the C function if_nametoindex(), or equivalent
1651
1652
Note: This function cannot accept a unicode string."""
1653
global if_nametoindex
1654
try:
1655
if_nametoindex = (ctypes.cdll.LoadLibrary
1656
(ctypes.util.find_library("c"))
1657
.if_nametoindex)
1658
except (OSError, AttributeError):
1659
logger.warning("Doing if_nametoindex the hard way")
1660
def if_nametoindex(interface):
1661
"Get an interface index the hard way, i.e. using fcntl()"
1662
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1663
with contextlib.closing(socket.socket()) as s:
1664
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1665
struct.pack(str("16s16x"),
1666
interface))
1667
interface_index = struct.unpack(str("I"),
1668
ifreq[16:20])[0]
1669
return interface_index
1670
return if_nametoindex(interface)
1671
1672
2311
1673
def daemon(nochdir = False, noclose = False):
2312
1674
"""See daemon(3). Standard BSD Unix function.
2313
1675
2321
1683
sys.exit()
2322
1684
if not noclose:
2323
1685
# Close all standard open file descriptors
2324
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1686
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2325
1687
if not stat.S_ISCHR(os.fstat(null).st_mode):
2326
1688
raise OSError(errno.ENODEV,
2327
"{} not a character device"
2328
.format(os.devnull))
1689
"%s not a character device"
1690
% os.path.devnull)
2329
1691
os.dup2(null, sys.stdin.fileno())
2330
1692
os.dup2(null, sys.stdout.fileno())
2331
1693
os.dup2(null, sys.stderr.fileno())
2340
1702
2341
1703
parser = argparse.ArgumentParser()
2342
1704
parser.add_argument("-v", "--version", action="version",
2343
version = "%(prog)s {}".format(version),
1705
version = "%%(prog)s %s" % version,
2344
1706
help="show version number and exit")
2345
1707
parser.add_argument("-i", "--interface", metavar="IF",
2346
1708
help="Bind to interface IF")
2352
1714
help="Run self-test")
2353
1715
parser.add_argument("--debug", action="store_true",
2354
1716
help="Debug mode; run in foreground and log"
2355
" to terminal", default=None)
1717
" to terminal")
2356
1718
parser.add_argument("--debuglevel", metavar="LEVEL",
2357
1719
help="Debug level for stdout output")
2358
1720
parser.add_argument("--priority", help="GnuTLS"
2365
1727
" files")
2366
1728
parser.add_argument("--no-dbus", action="store_false",
2367
1729
dest="use_dbus", help="Do not provide D-Bus"
2368
" system bus interface", default=None)
1730
" system bus interface")
2369
1731
parser.add_argument("--no-ipv6", action="store_false",
2370
dest="use_ipv6", help="Do not use IPv6",
2371
default=None)
2372
parser.add_argument("--no-restore", action="store_false",
2373
dest="restore", help="Do not restore stored"
2374
" state", default=None)
2375
parser.add_argument("--socket", type=int,
2376
help="Specify a file descriptor to a network"
2377
" socket to use instead of creating one")
2378
parser.add_argument("--statedir", metavar="DIR",
2379
help="Directory to save/restore state in")
2380
parser.add_argument("--foreground", action="store_true",
2381
help="Run in foreground", default=None)
2382
parser.add_argument("--no-zeroconf", action="store_false",
2383
dest="zeroconf", help="Do not use Zeroconf",
2384
default=None)
2385
1732
dest="use_ipv6", help="Do not use IPv6")
2386
1733
options = parser.parse_args()
2387
1734
2388
1735
if options.check:
2389
1736
import doctest
2390
fail_count, test_count = doctest.testmod()
2391
sys.exit(os.EX_OK if fail_count == 0 else 1)
1737
doctest.testmod()
1738
sys.exit()
2392
1739
2393
1740
# Default values for config file for server-global settings
2394
1741
server_defaults = { "interface": "",
2396
1743
"port": "",
2397
1744
"debug": "False",
2398
1745
"priority":
2399
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2400
":+SIGN-DSA-SHA256",
1746
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2401
1747
"servicename": "Mandos",
2402
1748
"use_dbus": "True",
2403
1749
"use_ipv6": "True",
2404
1750
"debuglevel": "",
2405
"restore": "True",
2406
"socket": "",
2407
"statedir": "/var/lib/mandos",
2408
"foreground": "False",
2409
"zeroconf": "True",
2410
}
1751
}
2411
1752
2412
1753
# Parse config file for server-global settings
2413
1754
server_config = configparser.SafeConfigParser(server_defaults)
2414
1755
del server_defaults
2415
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1756
server_config.read(os.path.join(options.configdir,
1757
"mandos.conf"))
2416
1758
# Convert the SafeConfigParser object to a dict
2417
1759
server_settings = server_config.defaults()
2418
1760
# Use the appropriate methods on the non-string config options
2419
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
1761
for option in ("debug", "use_dbus", "use_ipv6"):
2420
1762
server_settings[option] = server_config.getboolean("DEFAULT",
2421
1763
option)
2422
1764
if server_settings["port"]:
2423
1765
server_settings["port"] = server_config.getint("DEFAULT",
2424
1766
"port")
2425
if server_settings["socket"]:
2426
server_settings["socket"] = server_config.getint("DEFAULT",
2427
"socket")
2428
# Later, stdin will, and stdout and stderr might, be dup'ed
2429
# over with an opened os.devnull. But we don't want this to
2430
# happen with a supplied network socket.
2431
if 0 <= server_settings["socket"] <= 2:
2432
server_settings["socket"] = os.dup(server_settings
2433
["socket"])
2434
1767
del server_config
2435
1768
2436
1769
# Override the settings from the config file with command line
2437
1770
# options, if set.
2438
1771
for option in ("interface", "address", "port", "debug",
2439
"priority", "servicename", "configdir", "use_dbus",
2440
"use_ipv6", "debuglevel", "restore", "statedir",
2441
"socket", "foreground", "zeroconf"):
1772
"priority", "servicename", "configdir",
1773
"use_dbus", "use_ipv6", "debuglevel"):
2442
1774
value = getattr(options, option)
2443
1775
if value is not None:
2444
1776
server_settings[option] = value
2445
1777
del options
2446
1778
# Force all strings to be unicode
2447
1779
for option in server_settings.keys():
2448
if isinstance(server_settings[option], bytes):
2449
server_settings[option] = (server_settings[option]
2450
.decode("utf-8"))
2451
# Force all boolean options to be boolean
2452
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2453
"foreground", "zeroconf"):
2454
server_settings[option] = bool(server_settings[option])
2455
# Debug implies foreground
2456
if server_settings["debug"]:
2457
server_settings["foreground"] = True
1780
if type(server_settings[option]) is str:
1781
server_settings[option] = unicode(server_settings[option])
2458
1782
# Now we have our good server settings in "server_settings"
2459
1783
2460
1784
##################################################################
2461
1785
2462
if (not server_settings["zeroconf"]
2463
and not (server_settings["port"]
2464
or server_settings["socket"] != "")):
2465
parser.error("Needs port or socket to work without Zeroconf")
2466
2467
1786
# For convenience
2468
1787
debug = server_settings["debug"]
2469
1788
debuglevel = server_settings["debuglevel"]
2470
1789
use_dbus = server_settings["use_dbus"]
2471
1790
use_ipv6 = server_settings["use_ipv6"]
2472
stored_state_path = os.path.join(server_settings["statedir"],
2473
stored_state_file)
2474
foreground = server_settings["foreground"]
2475
zeroconf = server_settings["zeroconf"]
2476
2477
if debug:
2478
initlogger(debug, logging.DEBUG)
2479
else:
2480
if not debuglevel:
2481
initlogger(debug)
2482
else:
2483
level = getattr(logging, debuglevel.upper())
2484
initlogger(debug, level)
2485
1791
2486
1792
if server_settings["servicename"] != "Mandos":
2487
syslogger.setFormatter(
2488
logging.Formatter('Mandos ({}) [%(process)d]:'
2489
' %(levelname)s: %(message)s'.format(
2490
server_settings["servicename"])))
1793
syslogger.setFormatter(logging.Formatter
1794
('Mandos (%s) [%%(process)d]:'
1795
' %%(levelname)s: %%(message)s'
1796
% server_settings["servicename"]))
2491
1797
2492
1798
# Parse config file with clients
2493
client_config = configparser.SafeConfigParser(Client
2494
.client_defaults)
1799
client_defaults = { "timeout": "1h",
1800
"interval": "5m",
1801
"checker": "fping -q -- %%(host)s",
1802
"host": "",
1803
"approval_delay": "0s",
1804
"approval_duration": "1s",
1805
}
1806
client_config = configparser.SafeConfigParser(client_defaults)
2495
1807
client_config.read(os.path.join(server_settings["configdir"],
2496
1808
"clients.conf"))
2497
1809
2498
1810
global mandos_dbus_service
2499
1811
mandos_dbus_service = None
2500
1812
2501
socketfd = None
2502
if server_settings["socket"] != "":
2503
socketfd = server_settings["socket"]
2504
tcp_server = MandosServer(
2505
(server_settings["address"], server_settings["port"]),
2506
ClientHandler,
2507
interface=(server_settings["interface"] or None),
2508
use_ipv6=use_ipv6,
2509
gnutls_priority=server_settings["priority"],
2510
use_dbus=use_dbus,
2511
socketfd=socketfd)
2512
if not foreground:
2513
pidfilename = "/run/mandos.pid"
2514
if not os.path.isdir("/run/."):
2515
pidfilename = "/var/run/mandos.pid"
2516
pidfile = None
1813
tcp_server = MandosServer((server_settings["address"],
1814
server_settings["port"]),
1815
ClientHandler,
1816
interface=(server_settings["interface"]
1817
or None),
1818
use_ipv6=use_ipv6,
1819
gnutls_priority=
1820
server_settings["priority"],
1821
use_dbus=use_dbus)
1822
if not debug:
1823
pidfilename = "/var/run/mandos.pid"
2517
1824
try:
2518
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2519
except IOError as e:
2520
logger.error("Could not open file %r", pidfilename,
2521
exc_info=e)
1825
pidfile = open(pidfilename, "w")
1826
except IOError:
1827
logger.error("Could not open file %r", pidfilename)
2522
1828
2523
for name in ("_mandos", "mandos", "nobody"):
1829
try:
1830
uid = pwd.getpwnam("_mandos").pw_uid
1831
gid = pwd.getpwnam("_mandos").pw_gid
1832
except KeyError:
2524
1833
try:
2525
uid = pwd.getpwnam(name).pw_uid
2526
gid = pwd.getpwnam(name).pw_gid
2527
break
1834
uid = pwd.getpwnam("mandos").pw_uid
1835
gid = pwd.getpwnam("mandos").pw_gid
2528
1836
except KeyError:
2529
continue
2530
else:
2531
uid = 65534
2532
gid = 65534
1837
try:
1838
uid = pwd.getpwnam("nobody").pw_uid
1839
gid = pwd.getpwnam("nobody").pw_gid
1840
except KeyError:
1841
uid = 65534
1842
gid = 65534
2533
1843
try:
2534
1844
os.setgid(gid)
2535
1845
os.setuid(uid)
2536
1846
except OSError as error:
2537
if error.errno != errno.EPERM:
2538
raise
1847
if error[0] != errno.EPERM:
1848
raise error
2539
1849
1850
if not debug and not debuglevel:
1851
syslogger.setLevel(logging.WARNING)
1852
console.setLevel(logging.WARNING)
1853
if debuglevel:
1854
level = getattr(logging, debuglevel.upper())
1855
syslogger.setLevel(level)
1856
console.setLevel(level)
1857
2540
1858
if debug:
2541
1859
# Enable all possible GnuTLS debugging
2542
1860
2548
1866
def debug_gnutls(level, string):
2549
1867
logger.debug("GnuTLS: %s", string[:-1])
2550
1868
2551
gnutls.library.functions.gnutls_global_set_log_function(
2552
debug_gnutls)
1869
(gnutls.library.functions
1870
.gnutls_global_set_log_function(debug_gnutls))
2553
1871
2554
1872
# Redirect stdin so all checkers get /dev/null
2555
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1873
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2556
1874
os.dup2(null, sys.stdin.fileno())
2557
1875
if null > 2:
2558
1876
os.close(null)
1877
else:
1878
# No console logging
1879
logger.removeHandler(console)
2559
1880
2560
1881
# Need to fork before connecting to D-Bus
2561
if not foreground:
1882
if not debug:
2562
1883
# Close all input and output, do double fork, etc.
2563
1884
daemon()
2564
1885
2565
# multiprocessing will use threads, so before we use gobject we
2566
# need to inform gobject that threads will be used.
2567
gobject.threads_init()
2568
2569
1886
global main_loop
2570
1887
# From the Avahi example code
2571
DBusGMainLoop(set_as_default=True)
1888
DBusGMainLoop(set_as_default=True )
2572
1889
main_loop = gobject.MainLoop()
2573
1890
bus = dbus.SystemBus()
2574
1891
# End of Avahi example code
2575
1892
if use_dbus:
2576
1893
try:
2577
bus_name = dbus.service.BusName("se.recompile.Mandos",
2578
bus,
2579
do_not_queue=True)
2580
old_bus_name = dbus.service.BusName(
2581
"se.bsnet.fukt.Mandos", bus,
2582
do_not_queue=True)
2583
except dbus.exceptions.DBusException as e:
2584
logger.error("Disabling D-Bus:", exc_info=e)
1894
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1895
bus, do_not_queue=True)
1896
except dbus.exceptions.NameExistsException as e:
1897
logger.error(unicode(e) + ", disabling D-Bus")
2585
1898
use_dbus = False
2586
1899
server_settings["use_dbus"] = False
2587
1900
tcp_server.use_dbus = False
2588
if zeroconf:
2589
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2590
service = AvahiServiceToSyslog(
2591
name = server_settings["servicename"],
2592
servicetype = "_mandos._tcp",
2593
protocol = protocol,
2594
bus = bus)
2595
if server_settings["interface"]:
2596
service.interface = if_nametoindex(
2597
server_settings["interface"].encode("utf-8"))
1901
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1902
service = AvahiService(name = server_settings["servicename"],
1903
servicetype = "_mandos._tcp",
1904
protocol = protocol, bus = bus)
1905
if server_settings["interface"]:
1906
service.interface = (if_nametoindex
1907
(str(server_settings["interface"])))
2598
1908
2599
1909
global multiprocessing_manager
2600
1910
multiprocessing_manager = multiprocessing.Manager()
2602
1912
client_class = Client
2603
1913
if use_dbus:
2604
1914
client_class = functools.partial(ClientDBus, bus = bus)
2605
2606
client_settings = Client.config_parser(client_config)
2607
old_client_settings = {}
2608
clients_data = {}
2609
2610
# This is used to redirect stdout and stderr for checker processes
2611
global wnull
2612
wnull = open(os.devnull, "w") # A writable /dev/null
2613
# Only used if server is running in foreground but not in debug
2614
# mode
2615
if debug or not foreground:
2616
wnull.close()
2617
2618
# Get client data and settings from last running state.
2619
if server_settings["restore"]:
2620
try:
2621
with open(stored_state_path, "rb") as stored_state:
2622
clients_data, old_client_settings = pickle.load(
2623
stored_state)
2624
os.remove(stored_state_path)
2625
except IOError as e:
2626
if e.errno == errno.ENOENT:
2627
logger.warning("Could not load persistent state:"
2628
" {}".format(os.strerror(e.errno)))
2629
else:
2630
logger.critical("Could not load persistent state:",
2631
exc_info=e)
2632
raise
2633
except EOFError as e:
2634
logger.warning("Could not load persistent state: "
2635
"EOFError:",
2636
exc_info=e)
2637
2638
with PGPEngine() as pgp:
2639
for client_name, client in clients_data.items():
2640
# Skip removed clients
2641
if client_name not in client_settings:
2642
continue
2643
2644
# Decide which value to use after restoring saved state.
2645
# We have three different values: Old config file,
2646
# new config file, and saved state.
2647
# New config value takes precedence if it differs from old
2648
# config value, otherwise use saved state.
2649
for name, value in client_settings[client_name].items():
2650
try:
2651
# For each value in new config, check if it
2652
# differs from the old config value (Except for
2653
# the "secret" attribute)
2654
if (name != "secret"
2655
and (value !=
2656
old_client_settings[client_name][name])):
2657
client[name] = value
2658
except KeyError:
2659
pass
2660
2661
# Clients who has passed its expire date can still be
2662
# enabled if its last checker was successful. A Client
2663
# whose checker succeeded before we stored its state is
2664
# assumed to have successfully run all checkers during
2665
# downtime.
2666
if client["enabled"]:
2667
if datetime.datetime.utcnow() >= client["expires"]:
2668
if not client["last_checked_ok"]:
2669
logger.warning(
2670
"disabling client {} - Client never "
2671
"performed a successful checker".format(
2672
client_name))
2673
client["enabled"] = False
2674
elif client["last_checker_status"] != 0:
2675
logger.warning(
2676
"disabling client {} - Client last"
2677
" checker failed with error code"
2678
" {}".format(
2679
client_name,
2680
client["last_checker_status"]))
2681
client["enabled"] = False
2682
else:
2683
client["expires"] = (
2684
datetime.datetime.utcnow()
2685
+ client["timeout"])
2686
logger.debug("Last checker succeeded,"
2687
" keeping {} enabled".format(
2688
client_name))
1915
def client_config_items(config, section):
1916
special_settings = {
1917
"approved_by_default":
1918
lambda: config.getboolean(section,
1919
"approved_by_default"),
1920
}
1921
for name, value in config.items(section):
2689
1922
try:
2690
client["secret"] = pgp.decrypt(
2691
client["encrypted_secret"],
2692
client_settings[client_name]["secret"])
2693
except PGPError:
2694
# If decryption fails, we use secret from new settings
2695
logger.debug("Failed to decrypt {} old secret".format(
2696
client_name))
2697
client["secret"] = (client_settings[client_name]
2698
["secret"])
2699
2700
# Add/remove clients based on new changes made to config
2701
for client_name in (set(old_client_settings)
2702
- set(client_settings)):
2703
del clients_data[client_name]
2704
for client_name in (set(client_settings)
2705
- set(old_client_settings)):
2706
clients_data[client_name] = client_settings[client_name]
2707
2708
# Create all client objects
2709
for client_name, client in clients_data.items():
2710
tcp_server.clients[client_name] = client_class(
2711
name = client_name,
2712
settings = client,
2713
server_settings = server_settings)
2714
1923
yield (name, special_settings[name]())
1924
except KeyError:
1925
yield (name, value)
1926
1927
tcp_server.clients.update(set(
1928
client_class(name = section,
1929
config= dict(client_config_items(
1930
client_config, section)))
1931
for section in client_config.sections()))
2715
1932
if not tcp_server.clients:
2716
1933
logger.warning("No clients defined")
2717
2718
if not foreground:
2719
if pidfile is not None:
2720
pid = os.getpid()
2721
try:
2722
with pidfile:
2723
print(pid, file=pidfile)
2724
except IOError:
2725
logger.error("Could not write to file %r with PID %d",
2726
pidfilename, pid)
2727
del pidfile
1934
1935
if not debug:
1936
try:
1937
with pidfile:
1938
pid = os.getpid()
1939
pidfile.write(str(pid) + "\n".encode("utf-8"))
1940
del pidfile
1941
except IOError:
1942
logger.error("Could not write to file %r with PID %d",
1943
pidfilename, pid)
1944
except NameError:
1945
# "pidfile" was never created
1946
pass
2728
1947
del pidfilename
2729
1948
1949
signal.signal(signal.SIGINT, signal.SIG_IGN)
1950
2730
1951
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2731
1952
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2732
1953
2733
1954
if use_dbus:
2734
2735
@alternate_dbus_interfaces(
2736
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2737
class MandosDBusService(DBusObjectWithProperties):
1955
class MandosDBusService(dbus.service.Object):
2738
1956
"""A D-Bus proxy object"""
2739
2740
1957
def __init__(self):
2741
1958
dbus.service.Object.__init__(self, bus, "/")
2742
2743
_interface = "se.recompile.Mandos"
2744
2745
@dbus_interface_annotations(_interface)
2746
def _foo(self):
2747
return {
2748
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2749
"false" }
1959
_interface = "se.bsnet.fukt.Mandos"
2750
1960
2751
1961
@dbus.service.signal(_interface, signature="o")
2752
1962
def ClientAdded(self, objpath):
2766
1976
@dbus.service.method(_interface, out_signature="ao")
2767
1977
def GetAllClients(self):
2768
1978
"D-Bus method"
2769
return dbus.Array(c.dbus_object_path for c in
2770
tcp_server.clients.itervalues())
1979
return dbus.Array(c.dbus_object_path
1980
for c in tcp_server.clients)
2771
1981
2772
1982
@dbus.service.method(_interface,
2773
1983
out_signature="a{oa{sv}}")
2774
1984
def GetAllClientsWithProperties(self):
2775
1985
"D-Bus method"
2776
1986
return dbus.Dictionary(
2777
{ c.dbus_object_path: c.GetAll("")
2778
for c in tcp_server.clients.itervalues() },
1987
((c.dbus_object_path, c.GetAll(""))
1988
for c in tcp_server.clients),
2779
1989
signature="oa{sv}")
2780
1990
2781
1991
@dbus.service.method(_interface, in_signature="o")
2782
1992
def RemoveClient(self, object_path):
2783
1993
"D-Bus method"
2784
for c in tcp_server.clients.itervalues():
1994
for c in tcp_server.clients:
2785
1995
if c.dbus_object_path == object_path:
2786
del tcp_server.clients[c.name]
1996
tcp_server.clients.remove(c)
2787
1997
c.remove_from_connection()
2788
1998
# Don't signal anything except ClientRemoved
2789
1999
c.disable(quiet=True)
2798
2008
2799
2009
def cleanup():
2800
2010
"Cleanup function; run on exit"
2801
if zeroconf:
2802
service.cleanup()
2803
2804
multiprocessing.active_children()
2805
wnull.close()
2806
if not (tcp_server.clients or client_settings):
2807
return
2808
2809
# Store client before exiting. Secrets are encrypted with key
2810
# based on what config file has. If config file is
2811
# removed/edited, old secret will thus be unrecovable.
2812
clients = {}
2813
with PGPEngine() as pgp:
2814
for client in tcp_server.clients.itervalues():
2815
key = client_settings[client.name]["secret"]
2816
client.encrypted_secret = pgp.encrypt(client.secret,
2817
key)
2818
client_dict = {}
2819
2820
# A list of attributes that can not be pickled
2821
# + secret.
2822
exclude = { "bus", "changedstate", "secret",
2823
"checker", "server_settings" }
2824
for name, typ in inspect.getmembers(dbus.service
2825
.Object):
2826
exclude.add(name)
2827
2828
client_dict["encrypted_secret"] = (client
2829
.encrypted_secret)
2830
for attr in client.client_structure:
2831
if attr not in exclude:
2832
client_dict[attr] = getattr(client, attr)
2833
2834
clients[client.name] = client_dict
2835
del client_settings[client.name]["secret"]
2836
2837
try:
2838
with tempfile.NamedTemporaryFile(
2839
mode='wb',
2840
suffix=".pickle",
2841
prefix='clients-',
2842
dir=os.path.dirname(stored_state_path),
2843
delete=False) as stored_state:
2844
pickle.dump((clients, client_settings), stored_state)
2845
tempname = stored_state.name
2846
os.rename(tempname, stored_state_path)
2847
except (IOError, OSError) as e:
2848
if not debug:
2849
try:
2850
os.remove(tempname)
2851
except NameError:
2852
pass
2853
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2854
logger.warning("Could not save persistent state: {}"
2855
.format(os.strerror(e.errno)))
2856
else:
2857
logger.warning("Could not save persistent state:",
2858
exc_info=e)
2859
raise
2860
2861
# Delete all clients, and settings from config
2011
service.cleanup()
2012
2862
2013
while tcp_server.clients:
2863
name, client = tcp_server.clients.popitem()
2014
client = tcp_server.clients.pop()
2864
2015
if use_dbus:
2865
2016
client.remove_from_connection()
2017
client.disable_hook = None
2866
2018
# Don't signal anything except ClientRemoved
2867
2019
client.disable(quiet=True)
2868
2020
if use_dbus:
2869
2021
# Emit D-Bus signal
2870
mandos_dbus_service.ClientRemoved(
2871
client.dbus_object_path, client.name)
2872
client_settings.clear()
2022
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2023
client.name)
2873
2024
2874
2025
atexit.register(cleanup)
2875
2026
2876
for client in tcp_server.clients.itervalues():
2027
for client in tcp_server.clients:
2877
2028
if use_dbus:
2878
2029
# Emit D-Bus signal
2879
2030
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2880
# Need to initiate checking of clients
2881
if client.enabled:
2882
client.init_checker()
2031
client.enable()
2883
2032
2884
2033
tcp_server.enable()
2885
2034
tcp_server.server_activate()
2886
2035
2887
2036
# Find out what port we got
2888
if zeroconf:
2889
service.port = tcp_server.socket.getsockname()[1]
2037
service.port = tcp_server.socket.getsockname()[1]
2890
2038
if use_ipv6:
2891
2039
logger.info("Now listening on address %r, port %d,"
2892
" flowinfo %d, scope_id %d",
2893
*tcp_server.socket.getsockname())
2040
" flowinfo %d, scope_id %d"
2041
% tcp_server.socket.getsockname())
2894
2042
else: # IPv4
2895
logger.info("Now listening on address %r, port %d",
2896
*tcp_server.socket.getsockname())
2043
logger.info("Now listening on address %r, port %d"
2044
% tcp_server.socket.getsockname())
2897
2045
2898
2046
#service.interface = tcp_server.socket.getsockname()[3]
2899
2047
2900
2048
try:
2901
if zeroconf:
2902
# From the Avahi example code
2903
try:
2904
service.activate()
2905
except dbus.exceptions.DBusException as error:
2906
logger.critical("D-Bus Exception", exc_info=error)
2907
cleanup()
2908
sys.exit(1)
2909
# End of Avahi example code
2049
# From the Avahi example code
2050
try:
2051
service.activate()
2052
except dbus.exceptions.DBusException as error:
2053
logger.critical("DBusException: %s", error)
2054
cleanup()
2055
sys.exit(1)
2056
# End of Avahi example code
2910
2057
2911
2058
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2912
2059
lambda *args, **kwargs:
2916
2063
logger.debug("Starting main loop")
2917
2064
main_loop.run()
2918
2065
except AvahiError as error:
2919
logger.critical("Avahi Error", exc_info=error)
2066
logger.critical("AvahiError: %s", error)
2920
2067
cleanup()
2921
2068
sys.exit(1)
2922
2069
except KeyboardInterrupt:
2927
2074
# Must run before the D-Bus bus name gets deregistered
2928
2075
cleanup()
2929
2076
2930
2931
2077
if __name__ == '__main__':
2932
2078
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0