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- Committer: Teddy Hogeborn
- Date: 2010-10-03 01:38:05 UTC
- mfrom: (24.1.170 mandos)
- Revision ID: teddy@fukt.bsnet.se-20101003013805-ojt18455zatp2ewh
Merge from Björn.
- files removed:
- debian/mandos-client.examples
- debian/upstream
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python2.7
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
14
# Copyright © 2008-2010 Teddy Hogeborn
15
# Copyright © 2008-2010 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
30
#
31
# Contact the authors at <mandos@recompile.se>.
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
#
33
33
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
37
from future_builtins import *
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
34
from __future__ import division, with_statement, absolute_import
35
36
import SocketServer as socketserver
43
37
import socket
44
import argparse
38
import optparse
45
39
import datetime
46
40
import errno
47
41
import gnutls.crypto
50
44
import gnutls.library.functions
51
45
import gnutls.library.constants
52
46
import gnutls.library.types
53
try:
54
import ConfigParser as configparser
55
except ImportError:
56
import configparser
47
import ConfigParser as configparser
57
48
import sys
58
49
import re
59
50
import os
68
59
import struct
69
60
import fcntl
70
61
import functools
71
try:
72
import cPickle as pickle
73
except ImportError:
74
import pickle
62
import cPickle as pickle
75
63
import multiprocessing
76
import types
77
import binascii
78
import tempfile
79
import itertools
80
import collections
81
import codecs
82
64
83
65
import dbus
84
66
import dbus.service
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
67
import gobject
89
68
import avahi
90
69
from dbus.mainloop.glib import DBusGMainLoop
91
70
import ctypes
101
80
except ImportError:
102
81
SO_BINDTODEVICE = None
103
82
104
if sys.version_info.major == 2:
105
str = unicode
106
107
version = "1.7.1"
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
83
84
version = "1.2.1"
85
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
88
syslogger = (logging.handlers.SysLogHandler
89
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
90
address = "/dev/log"))
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
93
u' %(message)s'))
94
logger.addHandler(syslogger)
95
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
98
u' %(levelname)s:'
99
u' %(message)s'))
100
logger.addHandler(console)
236
101
237
102
class AvahiError(Exception):
238
103
def __init__(self, value, *args, **kwargs):
239
104
self.value = value
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
105
super(AvahiError, self).__init__(value, *args, **kwargs)
106
def __unicode__(self):
107
return unicode(repr(self.value))
243
108
244
109
class AvahiServiceError(AvahiError):
245
110
pass
246
111
247
248
112
class AvahiGroupError(AvahiError):
249
113
pass
250
114
255
119
Attributes:
256
120
interface: integer; avahi.IF_UNSPEC or an interface index.
257
121
Used to optionally bind to the specified interface.
258
name: string; Example: 'Mandos'
259
type: string; Example: '_mandos._tcp'.
260
See <https://www.iana.org/assignments/service-names-port-numbers>
122
name: string; Example: u'Mandos'
123
type: string; Example: u'_mandos._tcp'.
124
See <http://www.dns-sd.org/ServiceTypes.html>
261
125
port: integer; what port to announce
262
126
TXT: list of strings; TXT record for the service
263
127
domain: string; Domain to publish on, default to .local if empty.
269
133
server: D-Bus Server
270
134
bus: dbus.SystemBus()
271
135
"""
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):
136
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
137
servicetype = None, port = None, TXT = None,
138
domain = u"", host = u"", max_renames = 32768,
139
protocol = avahi.PROTO_UNSPEC, bus = None):
284
140
self.interface = interface
285
141
self.name = name
286
142
self.type = servicetype
294
150
self.group = None # our entry group
295
151
self.server = None
296
152
self.bus = bus
297
self.entry_group_state_changed_match = None
298
299
def rename(self, remove=True):
153
def rename(self):
300
154
"""Derived from the Avahi example code"""
301
155
if self.rename_count >= self.max_renames:
302
logger.critical("No suitable Zeroconf service name found"
303
" after %i retries, exiting.",
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
304
158
self.rename_count)
305
raise AvahiServiceError("Too many renames")
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
159
raise AvahiServiceError(u"Too many renames")
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
161
logger.info(u"Changing Zeroconf service name to %r ...",
162
self.name)
163
syslogger.setFormatter(logging.Formatter
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
166
% self.name))
167
self.remove()
168
try:
169
self.add()
170
except dbus.exceptions.DBusException, error:
171
logger.critical(u"DBusException: %s", error)
172
self.cleanup()
173
os._exit(1)
308
174
self.rename_count += 1
309
logger.info("Changing Zeroconf service name to %r ...",
310
self.name)
311
if remove:
312
self.remove()
313
try:
314
self.add()
315
except dbus.exceptions.DBusException as error:
316
if (error.get_dbus_name()
317
== "org.freedesktop.Avahi.CollisionError"):
318
logger.info("Local Zeroconf service name collision.")
319
return self.rename(remove=False)
320
else:
321
logger.critical("D-Bus Exception", exc_info=error)
322
self.cleanup()
323
os._exit(1)
324
325
175
def remove(self):
326
176
"""Derived from the Avahi example code"""
327
if self.entry_group_state_changed_match is not None:
328
self.entry_group_state_changed_match.remove()
329
self.entry_group_state_changed_match = None
330
177
if self.group is not None:
331
178
self.group.Reset()
332
333
179
def add(self):
334
180
"""Derived from the Avahi example code"""
335
self.remove()
336
181
if self.group is None:
337
182
self.group = dbus.Interface(
338
183
self.bus.get_object(avahi.DBUS_NAME,
339
184
self.server.EntryGroupNew()),
340
185
avahi.DBUS_INTERFACE_ENTRY_GROUP)
341
self.entry_group_state_changed_match = (
342
self.group.connect_to_signal(
343
'StateChanged', self.entry_group_state_changed))
344
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
186
self.group.connect_to_signal('StateChanged',
187
self
188
.entry_group_state_changed)
189
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
345
190
self.name, self.type)
346
191
self.group.AddService(
347
192
self.interface,
352
197
dbus.UInt16(self.port),
353
198
avahi.string_array_to_txt_array(self.TXT))
354
199
self.group.Commit()
355
356
200
def entry_group_state_changed(self, state, error):
357
201
"""Derived from the Avahi example code"""
358
logger.debug("Avahi entry group state change: %i", state)
202
logger.debug(u"Avahi entry group state change: %i", state)
359
203
360
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
361
logger.debug("Zeroconf service established.")
205
logger.debug(u"Zeroconf service established.")
362
206
elif state == avahi.ENTRY_GROUP_COLLISION:
363
logger.info("Zeroconf service name collision.")
207
logger.warning(u"Zeroconf service name collision.")
364
208
self.rename()
365
209
elif state == avahi.ENTRY_GROUP_FAILURE:
366
logger.critical("Avahi: Error in group state changed %s",
367
str(error))
368
raise AvahiGroupError("State changed: {!s}".format(error))
369
210
logger.critical(u"Avahi: Error in group state changed %s",
211
unicode(error))
212
raise AvahiGroupError(u"State changed: %s"
213
% unicode(error))
370
214
def cleanup(self):
371
215
"""Derived from the Avahi example code"""
372
216
if self.group is not None:
373
try:
374
self.group.Free()
375
except (dbus.exceptions.UnknownMethodException,
376
dbus.exceptions.DBusException):
377
pass
217
self.group.Free()
378
218
self.group = None
379
self.remove()
380
381
def server_state_changed(self, state, error=None):
219
def server_state_changed(self, state):
382
220
"""Derived from the Avahi example code"""
383
logger.debug("Avahi server state change: %i", state)
384
bad_states = {
385
avahi.SERVER_INVALID: "Zeroconf server invalid",
386
avahi.SERVER_REGISTERING: None,
387
avahi.SERVER_COLLISION: "Zeroconf server name collision",
388
avahi.SERVER_FAILURE: "Zeroconf server failure",
389
}
390
if state in bad_states:
391
if bad_states[state] is not None:
392
if error is None:
393
logger.error(bad_states[state])
394
else:
395
logger.error(bad_states[state] + ": %r", error)
396
self.cleanup()
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
224
self.remove()
397
225
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)
410
else:
411
if error is None:
412
logger.debug("Unknown state: %r", state)
413
else:
414
logger.debug("Unknown state: %r: %r", state, error)
415
226
self.add()
416
227
def activate(self):
417
228
"""Derived from the Avahi example code"""
418
229
if self.server is None:
419
230
self.server = dbus.Interface(
420
231
self.bus.get_object(avahi.DBUS_NAME,
421
avahi.DBUS_PATH_SERVER,
422
follow_name_owner_changes=True),
232
avahi.DBUS_PATH_SERVER),
423
233
avahi.DBUS_INTERFACE_SERVER)
424
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
234
self.server.connect_to_signal(u"StateChanged",
235
self.server_state_changed)
426
236
self.server_state_changed(self.server.GetState())
427
237
428
238
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
239
class Client(object):
449
240
"""A representation of a client host served by this server.
450
241
451
242
Attributes:
452
approved: bool(); 'None' if not yet approved/disapproved
243
_approved: bool(); 'None' if not yet approved/disapproved
453
244
approval_delay: datetime.timedelta(); Time to wait for approval
454
245
approval_duration: datetime.timedelta(); Duration of one approval
455
246
checker: subprocess.Popen(); a running checker process used
462
253
instance %(name)s can be used in the command.
463
254
checker_initiator_tag: a gobject event source tag, or None
464
255
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
256
current_checker_command: string; current running checker_command
257
disable_hook: If set, called by disable() as disable_hook(self)
468
258
disable_initiator_tag: a gobject event source tag, or None
469
259
enabled: bool()
470
260
fingerprint: string (40 or 32 hexadecimal digits); used to
473
263
interval: datetime.timedelta(); How often to start a new checker
474
264
last_approval_request: datetime.datetime(); (UTC) or None
475
265
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
266
last_enabled: datetime.datetime(); (UTC)
482
267
name: string; from the config file, used in log messages and
483
268
D-Bus identifiers
484
269
secret: bytestring; sent verbatim (over TLS) to client
485
270
timeout: datetime.timedelta(); How long from last_checked_ok
486
271
until this client is disabled
487
extended_timeout: extra long timeout when secret has been sent
488
272
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
273
"""
493
274
494
runtime_expansions = ("approval_delay", "approval_duration",
495
"created", "enabled", "expires",
496
"fingerprint", "host", "interval",
497
"last_approval_request", "last_checked_ok",
498
"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
}
275
runtime_expansions = (u"approval_delay", u"approval_duration",
276
u"created", u"enabled", u"fingerprint",
277
u"host", u"interval", u"last_checked_ok",
278
u"last_enabled", u"name", u"timeout")
510
279
511
280
@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):
281
def _timedelta_to_milliseconds(td):
282
"Convert a datetime.timedelta() to milliseconds"
283
return ((td.days * 24 * 60 * 60 * 1000)
284
+ (td.seconds * 1000)
285
+ (td.microseconds // 1000))
286
287
def timeout_milliseconds(self):
288
"Return the 'timeout' attribute in milliseconds"
289
return self._timedelta_to_milliseconds(self.timeout)
290
291
def interval_milliseconds(self):
292
"Return the 'interval' attribute in milliseconds"
293
return self._timedelta_to_milliseconds(self.interval)
294
295
def approval_delay_milliseconds(self):
296
return self._timedelta_to_milliseconds(self.approval_delay)
297
298
def __init__(self, name = None, disable_hook=None, config=None):
299
"""Note: the 'checker' key in 'config' sets the
300
'checker_command' attribute and *not* the 'checker'
301
attribute."""
562
302
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)
303
if config is None:
304
config = {}
305
logger.debug(u"Creating client %r", self.name)
306
# Uppercase and remove spaces from fingerprint for later
307
# comparison purposes with return value from the fingerprint()
308
# function
309
self.fingerprint = (config[u"fingerprint"].upper()
310
.replace(u" ", u""))
311
logger.debug(u" Fingerprint: %s", self.fingerprint)
312
if u"secret" in config:
313
self.secret = config[u"secret"].decode(u"base64")
314
elif u"secfile" in config:
315
with open(os.path.expanduser(os.path.expandvars
316
(config[u"secfile"])),
317
"rb") as secfile:
318
self.secret = secfile.read()
576
319
else:
577
self.last_enabled = None
578
self.expires = None
579
580
logger.debug("Creating client %r", self.name)
581
logger.debug(" Fingerprint: %s", self.fingerprint)
582
self.created = settings.get("created",
583
datetime.datetime.utcnow())
584
585
# attributes specific for this server instance
320
raise TypeError(u"No secret or secfile for client %s"
321
% self.name)
322
self.host = config.get(u"host", u"")
323
self.created = datetime.datetime.utcnow()
324
self.enabled = False
325
self.last_approval_request = None
326
self.last_enabled = None
327
self.last_checked_ok = None
328
self.timeout = string_to_delta(config[u"timeout"])
329
self.interval = string_to_delta(config[u"interval"])
330
self.disable_hook = disable_hook
586
331
self.checker = None
587
332
self.checker_initiator_tag = None
588
333
self.disable_initiator_tag = None
589
334
self.checker_callback_tag = None
335
self.checker_command = config[u"checker"]
590
336
self.current_checker_command = None
591
self.approved = None
337
self.last_connect = None
338
self._approved = None
339
self.approved_by_default = config.get(u"approved_by_default",
340
True)
592
341
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)
342
self.approval_delay = string_to_delta(
343
config[u"approval_delay"])
344
self.approval_duration = string_to_delta(
345
config[u"approval_duration"])
346
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
604
347
605
# Send notice to process children that client state has changed
606
348
def send_changedstate(self):
607
with self.changedstate:
608
self.changedstate.notify_all()
609
349
self.changedstate.acquire()
350
self.changedstate.notify_all()
351
self.changedstate.release()
352
610
353
def enable(self):
611
354
"""Start this client's checker and timeout hooks"""
612
if getattr(self, "enabled", False):
355
if getattr(self, u"enabled", False):
613
356
# Already enabled
614
357
return
615
self.expires = datetime.datetime.utcnow() + self.timeout
616
self.enabled = True
358
self.send_changedstate()
617
359
self.last_enabled = datetime.datetime.utcnow()
618
self.init_checker()
619
self.send_changedstate()
360
# Schedule a new checker to be started an 'interval' from now,
361
# and every interval from then on.
362
self.checker_initiator_tag = (gobject.timeout_add
363
(self.interval_milliseconds(),
364
self.start_checker))
365
# Schedule a disable() when 'timeout' has passed
366
self.disable_initiator_tag = (gobject.timeout_add
367
(self.timeout_milliseconds(),
368
self.disable))
369
self.enabled = True
370
# Also start a new checker *right now*.
371
self.start_checker()
620
372
621
373
def disable(self, quiet=True):
622
374
"""Disable this client."""
623
375
if not getattr(self, "enabled", False):
624
376
return False
625
377
if not quiet:
626
logger.info("Disabling client %s", self.name)
627
if getattr(self, "disable_initiator_tag", None) is not None:
378
self.send_changedstate()
379
if not quiet:
380
logger.info(u"Disabling client %s", self.name)
381
if getattr(self, u"disable_initiator_tag", False):
628
382
gobject.source_remove(self.disable_initiator_tag)
629
383
self.disable_initiator_tag = None
630
self.expires = None
631
if getattr(self, "checker_initiator_tag", None) is not None:
384
if getattr(self, u"checker_initiator_tag", False):
632
385
gobject.source_remove(self.checker_initiator_tag)
633
386
self.checker_initiator_tag = None
634
387
self.stop_checker()
388
if self.disable_hook:
389
self.disable_hook(self)
635
390
self.enabled = False
636
if not quiet:
637
self.send_changedstate()
638
391
# Do not run this again if called by a gobject.timeout_add
639
392
return False
640
393
641
394
def __del__(self):
395
self.disable_hook = None
642
396
self.disable()
643
397
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):
398
def checker_callback(self, pid, condition, command):
662
399
"""The checker has completed, so take appropriate actions."""
663
400
self.checker_callback_tag = None
664
401
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:
673
logger.info("Checker for %(name)s succeeded",
402
if os.WIFEXITED(condition):
403
exitstatus = os.WEXITSTATUS(condition)
404
if exitstatus == 0:
405
logger.info(u"Checker for %(name)s succeeded",
674
406
vars(self))
675
407
self.checked_ok()
676
408
else:
677
logger.info("Checker for %(name)s failed", vars(self))
409
logger.info(u"Checker for %(name)s failed",
410
vars(self))
678
411
else:
679
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
logger.warning("Checker for %(name)s crashed?",
412
logger.warning(u"Checker for %(name)s crashed?",
682
413
vars(self))
683
return False
684
414
685
415
def checked_ok(self):
686
"""Assert that the client has been seen, alive and well."""
416
"""Bump up the timeout for this client.
417
418
This should only be called when the client has been seen,
419
alive and well.
420
"""
687
421
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
422
gobject.source_remove(self.disable_initiator_tag)
423
self.disable_initiator_tag = (gobject.timeout_add
424
(self.timeout_milliseconds(),
425
self.disable))
703
426
704
427
def need_approval(self):
705
428
self.last_approval_request = datetime.datetime.utcnow()
710
433
If a checker already exists, leave it running and do
711
434
nothing."""
712
435
# 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
436
# did that, then if a checker (for some reason) started
437
# running slowly and taking more than 'interval' time, the
438
# client would inevitably timeout, since no checker would get
439
# a chance to run to completion. If we instead leave running
717
440
# checkers alone, the checker would have to take more time
718
441
# than 'timeout' for the client to be disabled, which is as it
719
442
# should be.
720
443
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
444
# If a checker exists, make sure it is not a zombie
445
try:
446
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
447
except (AttributeError, OSError), error:
448
if (isinstance(error, OSError)
449
and error.errno != errno.ECHILD):
450
raise error
451
else:
452
if pid:
453
logger.warning(u"Checker was a zombie")
454
gobject.source_remove(self.checker_callback_tag)
455
self.checker_callback(pid, status,
456
self.current_checker_command)
725
457
# Start a new checker if needed
726
458
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
459
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
460
# In case checker_command has exactly one % operator
461
command = self.checker_command % self.host
462
except TypeError:
463
# Escape attributes for the shell
464
escaped_attrs = dict(
465
(attr,
466
re.escape(unicode(str(getattr(self, attr, u"")),
467
errors=
468
u'replace')))
469
for attr in
470
self.runtime_expansions)
471
472
try:
473
command = self.checker_command % escaped_attrs
474
except TypeError, error:
475
logger.error(u'Could not format string "%s":'
476
u' %s', self.checker_command, error)
477
return True # Try again later
738
478
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)
479
try:
480
logger.info(u"Starting checker %r for %s",
481
command, self.name)
482
# We don't need to redirect stdout and stderr, since
483
# in normal mode, that is already done by daemon(),
484
# and in debug mode we don't want to. (Stdin is
485
# always replaced by /dev/null.)
486
self.checker = subprocess.Popen(command,
487
close_fds=True,
488
shell=True, cwd=u"/")
489
self.checker_callback_tag = (gobject.child_watch_add
490
(self.checker.pid,
491
self.checker_callback,
492
data=command))
493
# The checker may have completed before the gobject
494
# watch was added. Check for this.
495
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
496
if pid:
497
gobject.source_remove(self.checker_callback_tag)
498
self.checker_callback(pid, status, command)
499
except OSError, error:
500
logger.error(u"Failed to start subprocess: %s",
501
error)
764
502
# Re-run this periodically if run by gobject.timeout_add
765
503
return True
766
504
769
507
if self.checker_callback_tag:
770
508
gobject.source_remove(self.checker_callback_tag)
771
509
self.checker_callback_tag = None
772
if getattr(self, "checker", None) is None:
510
if getattr(self, u"checker", None) is None:
773
511
return
774
logger.debug("Stopping checker for %(name)s", vars(self))
775
self.checker.terminate()
512
logger.debug(u"Stopping checker for %(name)s", vars(self))
513
try:
514
os.kill(self.checker.pid, signal.SIGTERM)
515
#time.sleep(0.5)
516
#if self.checker.poll() is None:
517
# os.kill(self.checker.pid, signal.SIGKILL)
518
except OSError, error:
519
if error.errno != errno.ESRCH: # No such process
520
raise
776
521
self.checker = None
777
522
778
779
def dbus_service_property(dbus_interface,
780
signature="v",
781
access="readwrite",
782
byte_arrays=False):
523
def dbus_service_property(dbus_interface, signature=u"v",
524
access=u"readwrite", byte_arrays=False):
783
525
"""Decorators for marking methods of a DBusObjectWithProperties to
784
526
become properties on the D-Bus.
785
527
792
534
"""
793
535
# Encoding deeply encoded byte arrays is not supported yet by the
794
536
# "Set" method, so we fail early here:
795
if byte_arrays and signature != "ay":
796
raise ValueError("Byte arrays not supported for non-'ay'"
797
" signature {!r}".format(signature))
798
537
if byte_arrays and signature != u"ay":
538
raise ValueError(u"Byte arrays not supported for non-'ay'"
539
u" signature %r" % signature)
799
540
def decorator(func):
800
541
func._dbus_is_property = True
801
542
func._dbus_interface = dbus_interface
802
543
func._dbus_signature = signature
803
544
func._dbus_access = access
804
545
func._dbus_name = func.__name__
805
if func._dbus_name.endswith("_dbus_property"):
546
if func._dbus_name.endswith(u"_dbus_property"):
806
547
func._dbus_name = func._dbus_name[:-14]
807
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
808
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
See also the DBusObjectWithAnnotations class.
847
"""
848
849
def decorator(func):
850
func._dbus_annotations = annotations
851
return func
852
548
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
549
return func
853
550
return decorator
854
551
855
552
856
553
class DBusPropertyException(dbus.exceptions.DBusException):
857
554
"""A base class for D-Bus property-related exceptions
858
555
"""
859
pass
556
def __unicode__(self):
557
return unicode(str(self))
860
558
861
559
862
560
class DBusPropertyAccessException(DBusPropertyException):
871
569
pass
872
570
873
571
874
class DBusObjectWithAnnotations(dbus.service.Object):
875
"""A D-Bus object with annotations.
876
877
Classes inheriting from this can use the dbus_annotations
878
decorator to add annotations to methods or signals.
879
"""
880
881
@staticmethod
882
def _is_dbus_thing(thing):
883
"""Returns a function testing if an attribute is a D-Bus thing
884
885
If called like _is_dbus_thing("method") it returns a function
886
suitable for use as predicate to inspect.getmembers().
887
"""
888
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
889
False)
890
891
def _get_all_dbus_things(self, thing):
892
"""Returns a generator of (name, attribute) pairs
893
"""
894
return ((getattr(athing.__get__(self), "_dbus_name", name),
895
athing.__get__(self))
896
for cls in self.__class__.__mro__
897
for name, athing in
898
inspect.getmembers(cls, self._is_dbus_thing(thing)))
899
900
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
901
out_signature = "s",
902
path_keyword = 'object_path',
903
connection_keyword = 'connection')
904
def Introspect(self, object_path, connection):
905
"""Overloading of standard D-Bus method.
906
907
Inserts annotation tags on methods and signals.
908
"""
909
xmlstring = dbus.service.Object.Introspect(self, object_path,
910
connection)
911
try:
912
document = xml.dom.minidom.parseString(xmlstring)
913
914
for if_tag in document.getElementsByTagName("interface"):
915
# Add annotation tags
916
for typ in ("method", "signal"):
917
for tag in if_tag.getElementsByTagName(typ):
918
annots = dict()
919
for name, prop in (self.
920
_get_all_dbus_things(typ)):
921
if (name == tag.getAttribute("name")
922
and prop._dbus_interface
923
== if_tag.getAttribute("name")):
924
annots.update(getattr(
925
prop, "_dbus_annotations", {}))
926
for name, value in annots.items():
927
ann_tag = document.createElement(
928
"annotation")
929
ann_tag.setAttribute("name", name)
930
ann_tag.setAttribute("value", value)
931
tag.appendChild(ann_tag)
932
# Add interface annotation tags
933
for annotation, value in dict(
934
itertools.chain.from_iterable(
935
annotations().items()
936
for name, annotations
937
in self._get_all_dbus_things("interface")
938
if name == if_tag.getAttribute("name")
939
)).items():
940
ann_tag = document.createElement("annotation")
941
ann_tag.setAttribute("name", annotation)
942
ann_tag.setAttribute("value", value)
943
if_tag.appendChild(ann_tag)
944
# Fix argument name for the Introspect method itself
945
if (if_tag.getAttribute("name")
946
== dbus.INTROSPECTABLE_IFACE):
947
for cn in if_tag.getElementsByTagName("method"):
948
if cn.getAttribute("name") == "Introspect":
949
for arg in cn.getElementsByTagName("arg"):
950
if (arg.getAttribute("direction")
951
== "out"):
952
arg.setAttribute("name",
953
"xml_data")
954
xmlstring = document.toxml("utf-8")
955
document.unlink()
956
except (AttributeError, xml.dom.DOMException,
957
xml.parsers.expat.ExpatError) as error:
958
logger.error("Failed to override Introspection method",
959
exc_info=error)
960
return xmlstring
961
962
963
class DBusObjectWithProperties(DBusObjectWithAnnotations):
572
class DBusObjectWithProperties(dbus.service.Object):
964
573
"""A D-Bus object with properties.
965
574
966
575
Classes inheriting from this can use the dbus_service_property
967
576
decorator to expose methods as D-Bus properties. It exposes the
968
577
standard Get(), Set(), and GetAll() methods on the D-Bus.
969
578
"""
970
579
580
@staticmethod
581
def _is_dbus_property(obj):
582
return getattr(obj, u"_dbus_is_property", False)
583
584
def _get_all_dbus_properties(self):
585
"""Returns a generator of (name, attribute) pairs
586
"""
587
return ((prop._dbus_name, prop)
588
for name, prop in
589
inspect.getmembers(self, self._is_dbus_property))
590
971
591
def _get_dbus_property(self, interface_name, property_name):
972
592
"""Returns a bound method if one exists which is a D-Bus
973
593
property with the specified name and interface.
974
594
"""
975
for cls in self.__class__.__mro__:
976
for name, value in inspect.getmembers(
977
cls, self._is_dbus_thing("property")):
978
if (value._dbus_name == property_name
979
and value._dbus_interface == interface_name):
980
return value.__get__(self)
981
595
for name in (property_name,
596
property_name + u"_dbus_property"):
597
prop = getattr(self, name, None)
598
if (prop is None
599
or not self._is_dbus_property(prop)
600
or prop._dbus_name != property_name
601
or (interface_name and prop._dbus_interface
602
and interface_name != prop._dbus_interface)):
603
continue
604
return prop
982
605
# No such property
983
raise DBusPropertyNotFound("{}:{}.{}".format(
984
self.dbus_object_path, interface_name, property_name))
985
986
@classmethod
987
def _get_all_interface_names(cls):
988
"""Get a sequence of all interfaces supported by an object"""
989
return (name for name in set(getattr(getattr(x, attr),
990
"_dbus_interface", None)
991
for x in (inspect.getmro(cls))
992
for attr in dir(x))
993
if name is not None)
994
995
@dbus.service.method(dbus.PROPERTIES_IFACE,
996
in_signature="ss",
997
out_signature="v")
606
raise DBusPropertyNotFound(self.dbus_object_path + u":"
607
+ interface_name + u"."
608
+ property_name)
609
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
611
out_signature=u"v")
998
612
def Get(self, interface_name, property_name):
999
613
"""Standard D-Bus property Get() method, see D-Bus standard.
1000
614
"""
1001
615
prop = self._get_dbus_property(interface_name, property_name)
1002
if prop._dbus_access == "write":
616
if prop._dbus_access == u"write":
1003
617
raise DBusPropertyAccessException(property_name)
1004
618
value = prop()
1005
if not hasattr(value, "variant_level"):
619
if not hasattr(value, u"variant_level"):
1006
620
return value
1007
621
return type(value)(value, variant_level=value.variant_level+1)
1008
622
1009
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
623
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1010
624
def Set(self, interface_name, property_name, value):
1011
625
"""Standard D-Bus property Set() method, see D-Bus standard.
1012
626
"""
1013
627
prop = self._get_dbus_property(interface_name, property_name)
1014
if prop._dbus_access == "read":
628
if prop._dbus_access == u"read":
1015
629
raise DBusPropertyAccessException(property_name)
1016
if prop._dbus_get_args_options["byte_arrays"]:
630
if prop._dbus_get_args_options[u"byte_arrays"]:
1017
631
# The byte_arrays option is not supported yet on
1018
632
# signatures other than "ay".
1019
if prop._dbus_signature != "ay":
1020
raise ValueError("Byte arrays not supported for non-"
1021
"'ay' signature {!r}"
1022
.format(prop._dbus_signature))
1023
value = dbus.ByteArray(b''.join(chr(byte)
1024
for byte in value))
633
if prop._dbus_signature != u"ay":
634
raise ValueError
635
value = dbus.ByteArray(''.join(unichr(byte)
636
for byte in value))
1025
637
prop(value)
1026
638
1027
@dbus.service.method(dbus.PROPERTIES_IFACE,
1028
in_signature="s",
1029
out_signature="a{sv}")
639
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
640
out_signature=u"a{sv}")
1030
641
def GetAll(self, interface_name):
1031
642
"""Standard D-Bus property GetAll() method, see D-Bus
1032
643
standard.
1033
644
1034
645
Note: Will not include properties with access="write".
1035
646
"""
1036
properties = {}
1037
for name, prop in self._get_all_dbus_things("property"):
647
all = {}
648
for name, prop in self._get_all_dbus_properties():
1038
649
if (interface_name
1039
650
and interface_name != prop._dbus_interface):
1040
651
# Interface non-empty but did not match
1041
652
continue
1042
653
# Ignore write-only properties
1043
if prop._dbus_access == "write":
654
if prop._dbus_access == u"write":
1044
655
continue
1045
656
value = prop()
1046
if not hasattr(value, "variant_level"):
1047
properties[name] = value
657
if not hasattr(value, u"variant_level"):
658
all[name] = value
1048
659
continue
1049
properties[name] = type(value)(
1050
value, variant_level = value.variant_level + 1)
1051
return dbus.Dictionary(properties, signature="sv")
1052
1053
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1054
def PropertiesChanged(self, interface_name, changed_properties,
1055
invalidated_properties):
1056
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1057
standard.
1058
"""
1059
pass
660
all[name] = type(value)(value, variant_level=
661
value.variant_level+1)
662
return dbus.Dictionary(all, signature=u"sv")
1060
663
1061
664
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1062
out_signature="s",
665
out_signature=u"s",
1063
666
path_keyword='object_path',
1064
667
connection_keyword='connection')
1065
668
def Introspect(self, object_path, connection):
1066
"""Overloading of standard D-Bus method.
1067
1068
Inserts property tags and interface annotation tags.
669
"""Standard D-Bus method, overloaded to insert property tags.
1069
670
"""
1070
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1071
object_path,
1072
connection)
671
xmlstring = dbus.service.Object.Introspect(self, object_path,
672
connection)
1073
673
try:
1074
674
document = xml.dom.minidom.parseString(xmlstring)
1075
1076
675
def make_tag(document, name, prop):
1077
e = document.createElement("property")
1078
e.setAttribute("name", name)
1079
e.setAttribute("type", prop._dbus_signature)
1080
e.setAttribute("access", prop._dbus_access)
676
e = document.createElement(u"property")
677
e.setAttribute(u"name", name)
678
e.setAttribute(u"type", prop._dbus_signature)
679
e.setAttribute(u"access", prop._dbus_access)
1081
680
return e
1082
1083
for if_tag in document.getElementsByTagName("interface"):
1084
# Add property tags
681
for if_tag in document.getElementsByTagName(u"interface"):
1085
682
for tag in (make_tag(document, name, prop)
1086
683
for name, prop
1087
in self._get_all_dbus_things("property")
684
in self._get_all_dbus_properties()
1088
685
if prop._dbus_interface
1089
== if_tag.getAttribute("name")):
686
== if_tag.getAttribute(u"name")):
1090
687
if_tag.appendChild(tag)
1091
# Add annotation tags for properties
1092
for tag in if_tag.getElementsByTagName("property"):
1093
annots = dict()
1094
for name, prop in self._get_all_dbus_things(
1095
"property"):
1096
if (name == tag.getAttribute("name")
1097
and prop._dbus_interface
1098
== if_tag.getAttribute("name")):
1099
annots.update(getattr(
1100
prop, "_dbus_annotations", {}))
1101
for name, value in annots.items():
1102
ann_tag = document.createElement(
1103
"annotation")
1104
ann_tag.setAttribute("name", name)
1105
ann_tag.setAttribute("value", value)
1106
tag.appendChild(ann_tag)
1107
688
# Add the names to the return values for the
1108
689
# "org.freedesktop.DBus.Properties" methods
1109
if (if_tag.getAttribute("name")
1110
== "org.freedesktop.DBus.Properties"):
1111
for cn in if_tag.getElementsByTagName("method"):
1112
if cn.getAttribute("name") == "Get":
1113
for arg in cn.getElementsByTagName("arg"):
1114
if (arg.getAttribute("direction")
1115
== "out"):
1116
arg.setAttribute("name", "value")
1117
elif cn.getAttribute("name") == "GetAll":
1118
for arg in cn.getElementsByTagName("arg"):
1119
if (arg.getAttribute("direction")
1120
== "out"):
1121
arg.setAttribute("name", "props")
1122
xmlstring = document.toxml("utf-8")
1123
document.unlink()
1124
except (AttributeError, xml.dom.DOMException,
1125
xml.parsers.expat.ExpatError) as error:
1126
logger.error("Failed to override Introspection method",
1127
exc_info=error)
1128
return xmlstring
1129
1130
try:
1131
dbus.OBJECT_MANAGER_IFACE
1132
except AttributeError:
1133
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1134
1135
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1136
"""A D-Bus object with an ObjectManager.
1137
1138
Classes inheriting from this exposes the standard
1139
GetManagedObjects call and the InterfacesAdded and
1140
InterfacesRemoved signals on the standard
1141
"org.freedesktop.DBus.ObjectManager" interface.
1142
1143
Note: No signals are sent automatically; they must be sent
1144
manually.
1145
"""
1146
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1147
out_signature = "a{oa{sa{sv}}}")
1148
def GetManagedObjects(self):
1149
"""This function must be overridden"""
1150
raise NotImplementedError()
1151
1152
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1153
signature = "oa{sa{sv}}")
1154
def InterfacesAdded(self, object_path, interfaces_and_properties):
1155
pass
1156
1157
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1158
def InterfacesRemoved(self, object_path, interfaces):
1159
pass
1160
1161
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1162
out_signature = "s",
1163
path_keyword = 'object_path',
1164
connection_keyword = 'connection')
1165
def Introspect(self, object_path, connection):
1166
"""Overloading of standard D-Bus method.
1167
1168
Override return argument name of GetManagedObjects to be
1169
"objpath_interfaces_and_properties"
1170
"""
1171
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1172
object_path,
1173
connection)
1174
try:
1175
document = xml.dom.minidom.parseString(xmlstring)
1176
1177
for if_tag in document.getElementsByTagName("interface"):
1178
# Fix argument name for the GetManagedObjects method
1179
if (if_tag.getAttribute("name")
1180
== dbus.OBJECT_MANAGER_IFACE):
1181
for cn in if_tag.getElementsByTagName("method"):
1182
if (cn.getAttribute("name")
1183
== "GetManagedObjects"):
1184
for arg in cn.getElementsByTagName("arg"):
1185
if (arg.getAttribute("direction")
1186
== "out"):
1187
arg.setAttribute(
1188
"name",
1189
"objpath_interfaces"
1190
"_and_properties")
1191
xmlstring = document.toxml("utf-8")
1192
document.unlink()
1193
except (AttributeError, xml.dom.DOMException,
1194
xml.parsers.expat.ExpatError) as error:
1195
logger.error("Failed to override Introspection method",
1196
exc_info = error)
1197
return xmlstring
1198
1199
def datetime_to_dbus(dt, variant_level=0):
1200
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1201
if dt is None:
1202
return dbus.String("", variant_level = variant_level)
1203
return dbus.String(dt.isoformat(), variant_level=variant_level)
1204
1205
1206
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1207
"""A class decorator; applied to a subclass of
1208
dbus.service.Object, it will add alternate D-Bus attributes with
1209
interface names according to the "alt_interface_names" mapping.
1210
Usage:
1211
1212
@alternate_dbus_interfaces({"org.example.Interface":
1213
"net.example.AlternateInterface"})
1214
class SampleDBusObject(dbus.service.Object):
1215
@dbus.service.method("org.example.Interface")
1216
def SampleDBusMethod():
1217
pass
1218
1219
The above "SampleDBusMethod" on "SampleDBusObject" will be
1220
reachable via two interfaces: "org.example.Interface" and
1221
"net.example.AlternateInterface", the latter of which will have
1222
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1223
"true", unless "deprecate" is passed with a False value.
1224
1225
This works for methods and signals, and also for D-Bus properties
1226
(from DBusObjectWithProperties) and interfaces (from the
1227
dbus_interface_annotations decorator).
1228
"""
1229
1230
def wrapper(cls):
1231
for orig_interface_name, alt_interface_name in (
1232
alt_interface_names.items()):
1233
attr = {}
1234
interface_names = set()
1235
# Go though all attributes of the class
1236
for attrname, attribute in inspect.getmembers(cls):
1237
# Ignore non-D-Bus attributes, and D-Bus attributes
1238
# with the wrong interface name
1239
if (not hasattr(attribute, "_dbus_interface")
1240
or not attribute._dbus_interface.startswith(
1241
orig_interface_name)):
1242
continue
1243
# Create an alternate D-Bus interface name based on
1244
# the current name
1245
alt_interface = attribute._dbus_interface.replace(
1246
orig_interface_name, alt_interface_name)
1247
interface_names.add(alt_interface)
1248
# Is this a D-Bus signal?
1249
if getattr(attribute, "_dbus_is_signal", False):
1250
if sys.version_info.major == 2:
1251
# Extract the original non-method undecorated
1252
# function by black magic
1253
nonmethod_func = (dict(
1254
zip(attribute.func_code.co_freevars,
1255
attribute.__closure__))
1256
["func"].cell_contents)
1257
else:
1258
nonmethod_func = attribute
1259
# Create a new, but exactly alike, function
1260
# object, and decorate it to be a new D-Bus signal
1261
# with the alternate D-Bus interface name
1262
if sys.version_info.major == 2:
1263
new_function = types.FunctionType(
1264
nonmethod_func.func_code,
1265
nonmethod_func.func_globals,
1266
nonmethod_func.func_name,
1267
nonmethod_func.func_defaults,
1268
nonmethod_func.func_closure)
1269
else:
1270
new_function = types.FunctionType(
1271
nonmethod_func.__code__,
1272
nonmethod_func.__globals__,
1273
nonmethod_func.__name__,
1274
nonmethod_func.__defaults__,
1275
nonmethod_func.__closure__)
1276
new_function = (dbus.service.signal(
1277
alt_interface,
1278
attribute._dbus_signature)(new_function))
1279
# Copy annotations, if any
1280
try:
1281
new_function._dbus_annotations = dict(
1282
attribute._dbus_annotations)
1283
except AttributeError:
1284
pass
1285
# Define a creator of a function to call both the
1286
# original and alternate functions, so both the
1287
# original and alternate signals gets sent when
1288
# the function is called
1289
def fixscope(func1, func2):
1290
"""This function is a scope container to pass
1291
func1 and func2 to the "call_both" function
1292
outside of its arguments"""
1293
1294
@functools.wraps(func2)
1295
def call_both(*args, **kwargs):
1296
"""This function will emit two D-Bus
1297
signals by calling func1 and func2"""
1298
func1(*args, **kwargs)
1299
func2(*args, **kwargs)
1300
# Make wrapper function look like a D-Bus signal
1301
for name, attr in inspect.getmembers(func2):
1302
if name.startswith("_dbus_"):
1303
setattr(call_both, name, attr)
1304
1305
return call_both
1306
# Create the "call_both" function and add it to
1307
# the class
1308
attr[attrname] = fixscope(attribute, new_function)
1309
# Is this a D-Bus method?
1310
elif getattr(attribute, "_dbus_is_method", False):
1311
# Create a new, but exactly alike, function
1312
# object. Decorate it to be a new D-Bus method
1313
# with the alternate D-Bus interface name. Add it
1314
# to the class.
1315
attr[attrname] = (
1316
dbus.service.method(
1317
alt_interface,
1318
attribute._dbus_in_signature,
1319
attribute._dbus_out_signature)
1320
(types.FunctionType(attribute.func_code,
1321
attribute.func_globals,
1322
attribute.func_name,
1323
attribute.func_defaults,
1324
attribute.func_closure)))
1325
# Copy annotations, if any
1326
try:
1327
attr[attrname]._dbus_annotations = dict(
1328
attribute._dbus_annotations)
1329
except AttributeError:
1330
pass
1331
# Is this a D-Bus property?
1332
elif getattr(attribute, "_dbus_is_property", False):
1333
# Create a new, but exactly alike, function
1334
# object, and decorate it to be a new D-Bus
1335
# property with the alternate D-Bus interface
1336
# name. Add it to the class.
1337
attr[attrname] = (dbus_service_property(
1338
alt_interface, attribute._dbus_signature,
1339
attribute._dbus_access,
1340
attribute._dbus_get_args_options
1341
["byte_arrays"])
1342
(types.FunctionType(
1343
attribute.func_code,
1344
attribute.func_globals,
1345
attribute.func_name,
1346
attribute.func_defaults,
1347
attribute.func_closure)))
1348
# Copy annotations, if any
1349
try:
1350
attr[attrname]._dbus_annotations = dict(
1351
attribute._dbus_annotations)
1352
except AttributeError:
1353
pass
1354
# Is this a D-Bus interface?
1355
elif getattr(attribute, "_dbus_is_interface", False):
1356
# Create a new, but exactly alike, function
1357
# object. Decorate it to be a new D-Bus interface
1358
# with the alternate D-Bus interface name. Add it
1359
# to the class.
1360
attr[attrname] = (
1361
dbus_interface_annotations(alt_interface)
1362
(types.FunctionType(attribute.func_code,
1363
attribute.func_globals,
1364
attribute.func_name,
1365
attribute.func_defaults,
1366
attribute.func_closure)))
1367
if deprecate:
1368
# Deprecate all alternate interfaces
1369
iname="_AlternateDBusNames_interface_annotation{}"
1370
for interface_name in interface_names:
1371
1372
@dbus_interface_annotations(interface_name)
1373
def func(self):
1374
return { "org.freedesktop.DBus.Deprecated":
1375
"true" }
1376
# Find an unused name
1377
for aname in (iname.format(i)
1378
for i in itertools.count()):
1379
if aname not in attr:
1380
attr[aname] = func
1381
break
1382
if interface_names:
1383
# Replace the class with a new subclass of it with
1384
# methods, signals, etc. as created above.
1385
cls = type(b"{}Alternate".format(cls.__name__),
1386
(cls, ), attr)
1387
return cls
1388
1389
return wrapper
1390
1391
1392
@alternate_dbus_interfaces({"se.recompile.Mandos":
1393
"se.bsnet.fukt.Mandos"})
690
if (if_tag.getAttribute(u"name")
691
== u"org.freedesktop.DBus.Properties"):
692
for cn in if_tag.getElementsByTagName(u"method"):
693
if cn.getAttribute(u"name") == u"Get":
694
for arg in cn.getElementsByTagName(u"arg"):
695
if (arg.getAttribute(u"direction")
696
== u"out"):
697
arg.setAttribute(u"name", u"value")
698
elif cn.getAttribute(u"name") == u"GetAll":
699
for arg in cn.getElementsByTagName(u"arg"):
700
if (arg.getAttribute(u"direction")
701
== u"out"):
702
arg.setAttribute(u"name", u"props")
703
xmlstring = document.toxml(u"utf-8")
704
document.unlink()
705
except (AttributeError, xml.dom.DOMException,
706
xml.parsers.expat.ExpatError), error:
707
logger.error(u"Failed to override Introspection method",
708
error)
709
return xmlstring
710
711
1394
712
class ClientDBus(Client, DBusObjectWithProperties):
1395
713
"""A Client class using D-Bus
1396
714
1400
718
"""
1401
719
1402
720
runtime_expansions = (Client.runtime_expansions
1403
+ ("dbus_object_path", ))
1404
1405
_interface = "se.recompile.Mandos.Client"
721
+ (u"dbus_object_path",))
1406
722
1407
723
# dbus.service.Object doesn't use super(), so we can't either.
1408
724
1409
725
def __init__(self, bus = None, *args, **kwargs):
726
self._approvals_pending = 0
1410
727
self.bus = bus
1411
728
Client.__init__(self, *args, **kwargs)
1412
729
# Only now, when this client is initialized, can it show up on
1413
730
# the D-Bus
1414
client_object_name = str(self.name).translate(
1415
{ord("."): ord("_"),
1416
ord("-"): ord("_")})
1417
self.dbus_object_path = dbus.ObjectPath(
1418
"/clients/" + client_object_name)
731
client_object_name = unicode(self.name).translate(
732
{ord(u"."): ord(u"_"),
733
ord(u"-"): ord(u"_")})
734
self.dbus_object_path = (dbus.ObjectPath
735
(u"/clients/" + client_object_name))
1419
736
DBusObjectWithProperties.__init__(self, self.bus,
1420
737
self.dbus_object_path)
1421
1422
def notifychangeproperty(transform_func, dbus_name,
1423
type_func=lambda x: x,
1424
variant_level=1,
1425
invalidate_only=False,
1426
_interface=_interface):
1427
""" Modify a variable so that it's a property which announces
1428
its changes to DBus.
1429
1430
transform_fun: Function that takes a value and a variant_level
1431
and transforms it to a D-Bus type.
1432
dbus_name: D-Bus name of the variable
1433
type_func: Function that transform the value before sending it
1434
to the D-Bus. Default: no transform
1435
variant_level: D-Bus variant level. Default: 1
1436
"""
1437
attrname = "_{}".format(dbus_name)
1438
1439
def setter(self, value):
1440
if hasattr(self, "dbus_object_path"):
1441
if (not hasattr(self, attrname) or
1442
type_func(getattr(self, attrname, None))
1443
!= type_func(value)):
1444
if invalidate_only:
1445
self.PropertiesChanged(
1446
_interface, dbus.Dictionary(),
1447
dbus.Array((dbus_name, )))
1448
else:
1449
dbus_value = transform_func(
1450
type_func(value),
1451
variant_level = variant_level)
1452
self.PropertyChanged(dbus.String(dbus_name),
1453
dbus_value)
1454
self.PropertiesChanged(
1455
_interface,
1456
dbus.Dictionary({ dbus.String(dbus_name):
1457
dbus_value }),
1458
dbus.Array())
1459
setattr(self, attrname, value)
1460
1461
return property(lambda self: getattr(self, attrname), setter)
1462
1463
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1464
approvals_pending = notifychangeproperty(dbus.Boolean,
1465
"ApprovalPending",
1466
type_func = bool)
1467
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1468
last_enabled = notifychangeproperty(datetime_to_dbus,
1469
"LastEnabled")
1470
checker = notifychangeproperty(
1471
dbus.Boolean, "CheckerRunning",
1472
type_func = lambda checker: checker is not None)
1473
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1474
"LastCheckedOK")
1475
last_checker_status = notifychangeproperty(dbus.Int16,
1476
"LastCheckerStatus")
1477
last_approval_request = notifychangeproperty(
1478
datetime_to_dbus, "LastApprovalRequest")
1479
approved_by_default = notifychangeproperty(dbus.Boolean,
1480
"ApprovedByDefault")
1481
approval_delay = notifychangeproperty(
1482
dbus.UInt64, "ApprovalDelay",
1483
type_func = lambda td: td.total_seconds() * 1000)
1484
approval_duration = notifychangeproperty(
1485
dbus.UInt64, "ApprovalDuration",
1486
type_func = lambda td: td.total_seconds() * 1000)
1487
host = notifychangeproperty(dbus.String, "Host")
1488
timeout = notifychangeproperty(
1489
dbus.UInt64, "Timeout",
1490
type_func = lambda td: td.total_seconds() * 1000)
1491
extended_timeout = notifychangeproperty(
1492
dbus.UInt64, "ExtendedTimeout",
1493
type_func = lambda td: td.total_seconds() * 1000)
1494
interval = notifychangeproperty(
1495
dbus.UInt64, "Interval",
1496
type_func = lambda td: td.total_seconds() * 1000)
1497
checker_command = notifychangeproperty(dbus.String, "Checker")
1498
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1499
invalidate_only=True)
1500
1501
del notifychangeproperty
738
739
def _get_approvals_pending(self):
740
return self._approvals_pending
741
def _set_approvals_pending(self, value):
742
old_value = self._approvals_pending
743
self._approvals_pending = value
744
bval = bool(value)
745
if (hasattr(self, "dbus_object_path")
746
and bval is not bool(old_value)):
747
dbus_bool = dbus.Boolean(bval, variant_level=1)
748
self.PropertyChanged(dbus.String(u"ApprovalPending"),
749
dbus_bool)
750
751
approvals_pending = property(_get_approvals_pending,
752
_set_approvals_pending)
753
del _get_approvals_pending, _set_approvals_pending
754
755
@staticmethod
756
def _datetime_to_dbus(dt, variant_level=0):
757
"""Convert a UTC datetime.datetime() to a D-Bus type."""
758
return dbus.String(dt.isoformat(),
759
variant_level=variant_level)
760
761
def enable(self):
762
oldstate = getattr(self, u"enabled", False)
763
r = Client.enable(self)
764
if oldstate != self.enabled:
765
# Emit D-Bus signals
766
self.PropertyChanged(dbus.String(u"Enabled"),
767
dbus.Boolean(True, variant_level=1))
768
self.PropertyChanged(
769
dbus.String(u"LastEnabled"),
770
self._datetime_to_dbus(self.last_enabled,
771
variant_level=1))
772
return r
773
774
def disable(self, quiet = False):
775
oldstate = getattr(self, u"enabled", False)
776
r = Client.disable(self, quiet=quiet)
777
if not quiet and oldstate != self.enabled:
778
# Emit D-Bus signal
779
self.PropertyChanged(dbus.String(u"Enabled"),
780
dbus.Boolean(False, variant_level=1))
781
return r
1502
782
1503
783
def __del__(self, *args, **kwargs):
1504
784
try:
1505
785
self.remove_from_connection()
1506
786
except LookupError:
1507
787
pass
1508
if hasattr(DBusObjectWithProperties, "__del__"):
788
if hasattr(DBusObjectWithProperties, u"__del__"):
1509
789
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1510
790
Client.__del__(self, *args, **kwargs)
1511
791
1512
def checker_callback(self, source, condition,
1513
connection, command, *args, **kwargs):
1514
ret = Client.checker_callback(self, source, condition,
1515
connection, command, *args,
1516
**kwargs)
1517
exitstatus = self.last_checker_status
1518
if exitstatus >= 0:
792
def checker_callback(self, pid, condition, command,
793
*args, **kwargs):
794
self.checker_callback_tag = None
795
self.checker = None
796
# Emit D-Bus signal
797
self.PropertyChanged(dbus.String(u"CheckerRunning"),
798
dbus.Boolean(False, variant_level=1))
799
if os.WIFEXITED(condition):
800
exitstatus = os.WEXITSTATUS(condition)
1519
801
# Emit D-Bus signal
1520
802
self.CheckerCompleted(dbus.Int16(exitstatus),
1521
# This is specific to GNU libC
1522
dbus.Int64(exitstatus << 8),
803
dbus.Int64(condition),
1523
804
dbus.String(command))
1524
805
else:
1525
806
# Emit D-Bus signal
1526
807
self.CheckerCompleted(dbus.Int16(-1),
1527
dbus.Int64(
1528
# This is specific to GNU libC
1529
(exitstatus << 8)
1530
| self.last_checker_signal),
808
dbus.Int64(condition),
1531
809
dbus.String(command))
1532
return ret
810
811
return Client.checker_callback(self, pid, condition, command,
812
*args, **kwargs)
813
814
def checked_ok(self, *args, **kwargs):
815
r = Client.checked_ok(self, *args, **kwargs)
816
# Emit D-Bus signal
817
self.PropertyChanged(
818
dbus.String(u"LastCheckedOK"),
819
(self._datetime_to_dbus(self.last_checked_ok,
820
variant_level=1)))
821
return r
822
823
def need_approval(self, *args, **kwargs):
824
r = Client.need_approval(self, *args, **kwargs)
825
# Emit D-Bus signal
826
self.PropertyChanged(
827
dbus.String(u"LastApprovalRequest"),
828
(self._datetime_to_dbus(self.last_approval_request,
829
variant_level=1)))
830
return r
1533
831
1534
832
def start_checker(self, *args, **kwargs):
1535
old_checker_pid = getattr(self.checker, "pid", None)
833
old_checker = self.checker
834
if self.checker is not None:
835
old_checker_pid = self.checker.pid
836
else:
837
old_checker_pid = None
1536
838
r = Client.start_checker(self, *args, **kwargs)
1537
839
# Only if new checker process was started
1538
840
if (self.checker is not None
1539
841
and old_checker_pid != self.checker.pid):
1540
842
# Emit D-Bus signal
1541
843
self.CheckerStarted(self.current_checker_command)
844
self.PropertyChanged(
845
dbus.String(u"CheckerRunning"),
846
dbus.Boolean(True, variant_level=1))
1542
847
return r
1543
848
849
def stop_checker(self, *args, **kwargs):
850
old_checker = getattr(self, u"checker", None)
851
r = Client.stop_checker(self, *args, **kwargs)
852
if (old_checker is not None
853
and getattr(self, u"checker", None) is None):
854
self.PropertyChanged(dbus.String(u"CheckerRunning"),
855
dbus.Boolean(False, variant_level=1))
856
return r
857
1544
858
def _reset_approved(self):
1545
self.approved = None
859
self._approved = None
1546
860
return False
1547
861
1548
862
def approve(self, value=True):
1549
self.approved = value
1550
gobject.timeout_add(int(self.approval_duration.total_seconds()
1551
* 1000), self._reset_approved)
1552
863
self.send_changedstate()
864
self._approved = value
865
gobject.timeout_add(self._timedelta_to_milliseconds
866
(self.approval_duration),
867
self._reset_approved)
868
1553
869
1554
870
## D-Bus methods, signals & properties
1555
1556
## Interfaces
871
_interface = u"se.bsnet.fukt.Mandos.Client"
1557
872
1558
873
## Signals
1559
874
1560
875
# CheckerCompleted - signal
1561
@dbus.service.signal(_interface, signature="nxs")
876
@dbus.service.signal(_interface, signature=u"nxs")
1562
877
def CheckerCompleted(self, exitcode, waitstatus, command):
1563
878
"D-Bus signal"
1564
879
pass
1565
880
1566
881
# CheckerStarted - signal
1567
@dbus.service.signal(_interface, signature="s")
882
@dbus.service.signal(_interface, signature=u"s")
1568
883
def CheckerStarted(self, command):
1569
884
"D-Bus signal"
1570
885
pass
1571
886
1572
887
# PropertyChanged - signal
1573
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1574
@dbus.service.signal(_interface, signature="sv")
888
@dbus.service.signal(_interface, signature=u"sv")
1575
889
def PropertyChanged(self, property, value):
1576
890
"D-Bus signal"
1577
891
pass
1586
900
pass
1587
901
1588
902
# Rejected - signal
1589
@dbus.service.signal(_interface, signature="s")
903
@dbus.service.signal(_interface, signature=u"s")
1590
904
def Rejected(self, reason):
1591
905
"D-Bus signal"
1592
906
pass
1593
907
1594
908
# NeedApproval - signal
1595
@dbus.service.signal(_interface, signature="tb")
909
@dbus.service.signal(_interface, signature=u"tb")
1596
910
def NeedApproval(self, timeout, default):
1597
911
"D-Bus signal"
1598
912
return self.need_approval()
1600
914
## Methods
1601
915
1602
916
# Approve - method
1603
@dbus.service.method(_interface, in_signature="b")
917
@dbus.service.method(_interface, in_signature=u"b")
1604
918
def Approve(self, value):
1605
919
self.approve(value)
1606
920
1607
921
# CheckedOK - method
1608
922
@dbus.service.method(_interface)
1609
923
def CheckedOK(self):
1610
self.checked_ok()
924
return self.checked_ok()
1611
925
1612
926
# Enable - method
1613
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1614
927
@dbus.service.method(_interface)
1615
928
def Enable(self):
1616
929
"D-Bus method"
1617
930
self.enable()
1618
931
1619
932
# StartChecker - method
1620
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1621
933
@dbus.service.method(_interface)
1622
934
def StartChecker(self):
1623
935
"D-Bus method"
1624
936
self.start_checker()
1625
937
1626
938
# Disable - method
1627
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1628
939
@dbus.service.method(_interface)
1629
940
def Disable(self):
1630
941
"D-Bus method"
1631
942
self.disable()
1632
943
1633
944
# StopChecker - method
1634
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1635
945
@dbus.service.method(_interface)
1636
946
def StopChecker(self):
1637
947
self.stop_checker()
1639
949
## Properties
1640
950
1641
951
# ApprovalPending - property
1642
@dbus_service_property(_interface, signature="b", access="read")
952
@dbus_service_property(_interface, signature=u"b", access=u"read")
1643
953
def ApprovalPending_dbus_property(self):
1644
954
return dbus.Boolean(bool(self.approvals_pending))
1645
955
1646
956
# ApprovedByDefault - property
1647
@dbus_service_property(_interface,
1648
signature="b",
1649
access="readwrite")
957
@dbus_service_property(_interface, signature=u"b",
958
access=u"readwrite")
1650
959
def ApprovedByDefault_dbus_property(self, value=None):
1651
960
if value is None: # get
1652
961
return dbus.Boolean(self.approved_by_default)
1653
962
self.approved_by_default = bool(value)
963
# Emit D-Bus signal
964
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
965
dbus.Boolean(value, variant_level=1))
1654
966
1655
967
# ApprovalDelay - property
1656
@dbus_service_property(_interface,
1657
signature="t",
1658
access="readwrite")
968
@dbus_service_property(_interface, signature=u"t",
969
access=u"readwrite")
1659
970
def ApprovalDelay_dbus_property(self, value=None):
1660
971
if value is None: # get
1661
return dbus.UInt64(self.approval_delay.total_seconds()
1662
* 1000)
972
return dbus.UInt64(self.approval_delay_milliseconds())
1663
973
self.approval_delay = datetime.timedelta(0, 0, 0, value)
974
# Emit D-Bus signal
975
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
976
dbus.UInt64(value, variant_level=1))
1664
977
1665
978
# ApprovalDuration - property
1666
@dbus_service_property(_interface,
1667
signature="t",
1668
access="readwrite")
979
@dbus_service_property(_interface, signature=u"t",
980
access=u"readwrite")
1669
981
def ApprovalDuration_dbus_property(self, value=None):
1670
982
if value is None: # get
1671
return dbus.UInt64(self.approval_duration.total_seconds()
1672
* 1000)
983
return dbus.UInt64(self._timedelta_to_milliseconds(
984
self.approval_duration))
1673
985
self.approval_duration = datetime.timedelta(0, 0, 0, value)
986
# Emit D-Bus signal
987
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
988
dbus.UInt64(value, variant_level=1))
1674
989
1675
990
# Name - property
1676
@dbus_annotations(
1677
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1678
@dbus_service_property(_interface, signature="s", access="read")
991
@dbus_service_property(_interface, signature=u"s", access=u"read")
1679
992
def Name_dbus_property(self):
1680
993
return dbus.String(self.name)
1681
994
1682
995
# Fingerprint - property
1683
@dbus_annotations(
1684
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1685
@dbus_service_property(_interface, signature="s", access="read")
996
@dbus_service_property(_interface, signature=u"s", access=u"read")
1686
997
def Fingerprint_dbus_property(self):
1687
998
return dbus.String(self.fingerprint)
1688
999
1689
1000
# Host - property
1690
@dbus_service_property(_interface,
1691
signature="s",
1692
access="readwrite")
1001
@dbus_service_property(_interface, signature=u"s",
1002
access=u"readwrite")
1693
1003
def Host_dbus_property(self, value=None):
1694
1004
if value is None: # get
1695
1005
return dbus.String(self.host)
1696
self.host = str(value)
1006
self.host = value
1007
# Emit D-Bus signal
1008
self.PropertyChanged(dbus.String(u"Host"),
1009
dbus.String(value, variant_level=1))
1697
1010
1698
1011
# Created - property
1699
@dbus_annotations(
1700
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1701
@dbus_service_property(_interface, signature="s", access="read")
1012
@dbus_service_property(_interface, signature=u"s", access=u"read")
1702
1013
def Created_dbus_property(self):
1703
return datetime_to_dbus(self.created)
1014
return dbus.String(self._datetime_to_dbus(self.created))
1704
1015
1705
1016
# LastEnabled - property
1706
@dbus_service_property(_interface, signature="s", access="read")
1017
@dbus_service_property(_interface, signature=u"s", access=u"read")
1707
1018
def LastEnabled_dbus_property(self):
1708
return datetime_to_dbus(self.last_enabled)
1019
if self.last_enabled is None:
1020
return dbus.String(u"")
1021
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1709
1022
1710
1023
# Enabled - property
1711
@dbus_service_property(_interface,
1712
signature="b",
1713
access="readwrite")
1024
@dbus_service_property(_interface, signature=u"b",
1025
access=u"readwrite")
1714
1026
def Enabled_dbus_property(self, value=None):
1715
1027
if value is None: # get
1716
1028
return dbus.Boolean(self.enabled)
1720
1032
self.disable()
1721
1033
1722
1034
# LastCheckedOK - property
1723
@dbus_service_property(_interface,
1724
signature="s",
1725
access="readwrite")
1035
@dbus_service_property(_interface, signature=u"s",
1036
access=u"readwrite")
1726
1037
def LastCheckedOK_dbus_property(self, value=None):
1727
1038
if value is not None:
1728
1039
self.checked_ok()
1729
1040
return
1730
return datetime_to_dbus(self.last_checked_ok)
1731
1732
# LastCheckerStatus - property
1733
@dbus_service_property(_interface, signature="n", access="read")
1734
def LastCheckerStatus_dbus_property(self):
1735
return dbus.Int16(self.last_checker_status)
1736
1737
# Expires - property
1738
@dbus_service_property(_interface, signature="s", access="read")
1739
def Expires_dbus_property(self):
1740
return datetime_to_dbus(self.expires)
1041
if self.last_checked_ok is None:
1042
return dbus.String(u"")
1043
return dbus.String(self._datetime_to_dbus(self
1044
.last_checked_ok))
1741
1045
1742
1046
# LastApprovalRequest - property
1743
@dbus_service_property(_interface, signature="s", access="read")
1047
@dbus_service_property(_interface, signature=u"s", access=u"read")
1744
1048
def LastApprovalRequest_dbus_property(self):
1745
return datetime_to_dbus(self.last_approval_request)
1049
if self.last_approval_request is None:
1050
return dbus.String(u"")
1051
return dbus.String(self.
1052
_datetime_to_dbus(self
1053
.last_approval_request))
1746
1054
1747
1055
# Timeout - property
1748
@dbus_service_property(_interface,
1749
signature="t",
1750
access="readwrite")
1056
@dbus_service_property(_interface, signature=u"t",
1057
access=u"readwrite")
1751
1058
def Timeout_dbus_property(self, value=None):
1752
1059
if value is None: # get
1753
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1754
old_timeout = self.timeout
1060
return dbus.UInt64(self.timeout_milliseconds())
1755
1061
self.timeout = datetime.timedelta(0, 0, 0, value)
1756
# Reschedule disabling
1757
if self.enabled:
1758
now = datetime.datetime.utcnow()
1759
self.expires += self.timeout - old_timeout
1760
if self.expires <= now:
1761
# The timeout has passed
1762
self.disable()
1763
else:
1764
if (getattr(self, "disable_initiator_tag", None)
1765
is None):
1766
return
1767
gobject.source_remove(self.disable_initiator_tag)
1768
self.disable_initiator_tag = gobject.timeout_add(
1769
int((self.expires - now).total_seconds() * 1000),
1770
self.disable)
1771
1772
# ExtendedTimeout - property
1773
@dbus_service_property(_interface,
1774
signature="t",
1775
access="readwrite")
1776
def ExtendedTimeout_dbus_property(self, value=None):
1777
if value is None: # get
1778
return dbus.UInt64(self.extended_timeout.total_seconds()
1779
* 1000)
1780
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1062
# Emit D-Bus signal
1063
self.PropertyChanged(dbus.String(u"Timeout"),
1064
dbus.UInt64(value, variant_level=1))
1065
if getattr(self, u"disable_initiator_tag", None) is None:
1066
return
1067
# Reschedule timeout
1068
gobject.source_remove(self.disable_initiator_tag)
1069
self.disable_initiator_tag = None
1070
time_to_die = (self.
1071
_timedelta_to_milliseconds((self
1072
.last_checked_ok
1073
+ self.timeout)
1074
- datetime.datetime
1075
.utcnow()))
1076
if time_to_die <= 0:
1077
# The timeout has passed
1078
self.disable()
1079
else:
1080
self.disable_initiator_tag = (gobject.timeout_add
1081
(time_to_die, self.disable))
1781
1082
1782
1083
# Interval - property
1783
@dbus_service_property(_interface,
1784
signature="t",
1785
access="readwrite")
1084
@dbus_service_property(_interface, signature=u"t",
1085
access=u"readwrite")
1786
1086
def Interval_dbus_property(self, value=None):
1787
1087
if value is None: # get
1788
return dbus.UInt64(self.interval.total_seconds() * 1000)
1088
return dbus.UInt64(self.interval_milliseconds())
1789
1089
self.interval = datetime.timedelta(0, 0, 0, value)
1790
if getattr(self, "checker_initiator_tag", None) is None:
1090
# Emit D-Bus signal
1091
self.PropertyChanged(dbus.String(u"Interval"),
1092
dbus.UInt64(value, variant_level=1))
1093
if getattr(self, u"checker_initiator_tag", None) is None:
1791
1094
return
1792
if self.enabled:
1793
# Reschedule checker run
1794
gobject.source_remove(self.checker_initiator_tag)
1795
self.checker_initiator_tag = gobject.timeout_add(
1796
value, self.start_checker)
1797
self.start_checker() # Start one now, too
1798
1095
# Reschedule checker run
1096
gobject.source_remove(self.checker_initiator_tag)
1097
self.checker_initiator_tag = (gobject.timeout_add
1098
(value, self.start_checker))
1099
self.start_checker() # Start one now, too
1100
1799
1101
# Checker - property
1800
@dbus_service_property(_interface,
1801
signature="s",
1802
access="readwrite")
1102
@dbus_service_property(_interface, signature=u"s",
1103
access=u"readwrite")
1803
1104
def Checker_dbus_property(self, value=None):
1804
1105
if value is None: # get
1805
1106
return dbus.String(self.checker_command)
1806
self.checker_command = str(value)
1107
self.checker_command = value
1108
# Emit D-Bus signal
1109
self.PropertyChanged(dbus.String(u"Checker"),
1110
dbus.String(self.checker_command,
1111
variant_level=1))
1807
1112
1808
1113
# CheckerRunning - property
1809
@dbus_service_property(_interface,
1810
signature="b",
1811
access="readwrite")
1114
@dbus_service_property(_interface, signature=u"b",
1115
access=u"readwrite")
1812
1116
def CheckerRunning_dbus_property(self, value=None):
1813
1117
if value is None: # get
1814
1118
return dbus.Boolean(self.checker is not None)
1818
1122
self.stop_checker()
1819
1123
1820
1124
# ObjectPath - property
1821
@dbus_annotations(
1822
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
1823
"org.freedesktop.DBus.Deprecated": "true"})
1824
@dbus_service_property(_interface, signature="o", access="read")
1125
@dbus_service_property(_interface, signature=u"o", access=u"read")
1825
1126
def ObjectPath_dbus_property(self):
1826
1127
return self.dbus_object_path # is already a dbus.ObjectPath
1827
1128
1828
1129
# Secret = property
1829
@dbus_annotations(
1830
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
1831
"invalidates"})
1832
@dbus_service_property(_interface,
1833
signature="ay",
1834
access="write",
1835
byte_arrays=True)
1130
@dbus_service_property(_interface, signature=u"ay",
1131
access=u"write", byte_arrays=True)
1836
1132
def Secret_dbus_property(self, value):
1837
self.secret = bytes(value)
1133
self.secret = str(value)
1838
1134
1839
1135
del _interface
1840
1136
1844
1140
self._pipe = child_pipe
1845
1141
self._pipe.send(('init', fpr, address))
1846
1142
if not self._pipe.recv():
1847
raise KeyError(fpr)
1848
1143
raise KeyError()
1144
1849
1145
def __getattribute__(self, name):
1850
if name == '_pipe':
1146
if(name == '_pipe'):
1851
1147
return super(ProxyClient, self).__getattribute__(name)
1852
1148
self._pipe.send(('getattr', name))
1853
1149
data = self._pipe.recv()
1854
1150
if data[0] == 'data':
1855
1151
return data[1]
1856
1152
if data[0] == 'function':
1857
1858
1153
def func(*args, **kwargs):
1859
1154
self._pipe.send(('funcall', name, args, kwargs))
1860
1155
return self._pipe.recv()[1]
1861
1862
1156
return func
1863
1157
1864
1158
def __setattr__(self, name, value):
1865
if name == '_pipe':
1159
if(name == '_pipe'):
1866
1160
return super(ProxyClient, self).__setattr__(name, value)
1867
1161
self._pipe.send(('setattr', name, value))
1868
1162
1875
1169
1876
1170
def handle(self):
1877
1171
with contextlib.closing(self.server.child_pipe) as child_pipe:
1878
logger.info("TCP connection from: %s",
1879
str(self.client_address))
1880
logger.debug("Pipe FD: %d",
1172
logger.info(u"TCP connection from: %s",
1173
unicode(self.client_address))
1174
logger.debug(u"Pipe FD: %d",
1881
1175
self.server.child_pipe.fileno())
1882
1883
session = gnutls.connection.ClientSession(
1884
self.request, gnutls.connection .X509Credentials())
1885
1176
1177
session = (gnutls.connection
1178
.ClientSession(self.request,
1179
gnutls.connection
1180
.X509Credentials()))
1181
1886
1182
# Note: gnutls.connection.X509Credentials is really a
1887
1183
# generic GnuTLS certificate credentials object so long as
1888
1184
# no X.509 keys are added to it. Therefore, we can use it
1889
1185
# here despite using OpenPGP certificates.
1890
1891
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1892
# "+AES-256-CBC", "+SHA1",
1893
# "+COMP-NULL", "+CTYPE-OPENPGP",
1894
# "+DHE-DSS"))
1186
1187
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1188
# u"+AES-256-CBC", u"+SHA1",
1189
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1190
# u"+DHE-DSS"))
1895
1191
# Use a fallback default, since this MUST be set.
1896
1192
priority = self.server.gnutls_priority
1897
1193
if priority is None:
1898
priority = "NORMAL"
1899
gnutls.library.functions.gnutls_priority_set_direct(
1900
session._c_object, priority, None)
1901
1194
priority = u"NORMAL"
1195
(gnutls.library.functions
1196
.gnutls_priority_set_direct(session._c_object,
1197
priority, None))
1198
1902
1199
# Start communication using the Mandos protocol
1903
1200
# Get protocol number
1904
1201
line = self.request.makefile().readline()
1905
logger.debug("Protocol version: %r", line)
1202
logger.debug(u"Protocol version: %r", line)
1906
1203
try:
1907
1204
if int(line.strip().split()[0]) > 1:
1908
raise RuntimeError(line)
1909
except (ValueError, IndexError, RuntimeError) as error:
1910
logger.error("Unknown protocol version: %s", error)
1205
raise RuntimeError
1206
except (ValueError, IndexError, RuntimeError), error:
1207
logger.error(u"Unknown protocol version: %s", error)
1911
1208
return
1912
1209
1913
1210
# Start GnuTLS connection
1914
1211
try:
1915
1212
session.handshake()
1916
except gnutls.errors.GNUTLSError as error:
1917
logger.warning("Handshake failed: %s", error)
1213
except gnutls.errors.GNUTLSError, error:
1214
logger.warning(u"Handshake failed: %s", error)
1918
1215
# Do not run session.bye() here: the session is not
1919
1216
# established. Just abandon the request.
1920
1217
return
1921
logger.debug("Handshake succeeded")
1922
1218
logger.debug(u"Handshake succeeded")
1219
1923
1220
approval_required = False
1924
1221
try:
1925
1222
try:
1926
fpr = self.fingerprint(
1927
self.peer_certificate(session))
1928
except (TypeError,
1929
gnutls.errors.GNUTLSError) as error:
1930
logger.warning("Bad certificate: %s", error)
1223
fpr = self.fingerprint(self.peer_certificate
1224
(session))
1225
except (TypeError, gnutls.errors.GNUTLSError), error:
1226
logger.warning(u"Bad certificate: %s", error)
1931
1227
return
1932
logger.debug("Fingerprint: %s", fpr)
1933
1228
logger.debug(u"Fingerprint: %s", fpr)
1229
1934
1230
try:
1935
1231
client = ProxyClient(child_pipe, fpr,
1936
1232
self.client_address)
1944
1240
1945
1241
while True:
1946
1242
if not client.enabled:
1947
logger.info("Client %s is disabled",
1948
client.name)
1243
logger.warning(u"Client %s is disabled",
1244
client.name)
1949
1245
if self.server.use_dbus:
1950
1246
# Emit D-Bus signal
1951
client.Rejected("Disabled")
1247
client.Rejected("Disabled")
1952
1248
return
1953
1249
1954
if client.approved or not client.approval_delay:
1250
if client._approved or not client.approval_delay:
1955
1251
#We are approved or approval is disabled
1956
1252
break
1957
elif client.approved is None:
1958
logger.info("Client %s needs approval",
1253
elif client._approved is None:
1254
logger.info(u"Client %s needs approval",
1959
1255
client.name)
1960
1256
if self.server.use_dbus:
1961
1257
# Emit D-Bus signal
1962
1258
client.NeedApproval(
1963
client.approval_delay.total_seconds()
1964
* 1000, client.approved_by_default)
1259
client.approval_delay_milliseconds(),
1260
client.approved_by_default)
1965
1261
else:
1966
logger.warning("Client %s was not approved",
1262
logger.warning(u"Client %s was not approved",
1967
1263
client.name)
1968
1264
if self.server.use_dbus:
1969
1265
# Emit D-Bus signal
1971
1267
return
1972
1268
1973
1269
#wait until timeout or approved
1270
#x = float(client._timedelta_to_milliseconds(delay))
1974
1271
time = datetime.datetime.now()
1975
1272
client.changedstate.acquire()
1976
client.changedstate.wait(delay.total_seconds())
1273
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1977
1274
client.changedstate.release()
1978
1275
time2 = datetime.datetime.now()
1979
1276
if (time2 - time) >= delay:
1994
1291
while sent_size < len(client.secret):
1995
1292
try:
1996
1293
sent = session.send(client.secret[sent_size:])
1997
except gnutls.errors.GNUTLSError as error:
1998
logger.warning("gnutls send failed",
1999
exc_info=error)
1294
except (gnutls.errors.GNUTLSError), error:
1295
logger.warning("gnutls send failed")
2000
1296
return
2001
logger.debug("Sent: %d, remaining: %d", sent,
2002
len(client.secret) - (sent_size
2003
+ sent))
1297
logger.debug(u"Sent: %d, remaining: %d",
1298
sent, len(client.secret)
1299
- (sent_size + sent))
2004
1300
sent_size += sent
2005
2006
logger.info("Sending secret to %s", client.name)
2007
# bump the timeout using extended_timeout
2008
client.bump_timeout(client.extended_timeout)
1301
1302
logger.info(u"Sending secret to %s", client.name)
1303
# bump the timeout as if seen
1304
client.checked_ok()
2009
1305
if self.server.use_dbus:
2010
1306
# Emit D-Bus signal
2011
1307
client.GotSecret()
2015
1311
client.approvals_pending -= 1
2016
1312
try:
2017
1313
session.bye()
2018
except gnutls.errors.GNUTLSError as error:
2019
logger.warning("GnuTLS bye failed",
2020
exc_info=error)
1314
except (gnutls.errors.GNUTLSError), error:
1315
logger.warning("GnuTLS bye failed")
2021
1316
2022
1317
@staticmethod
2023
1318
def peer_certificate(session):
2024
1319
"Return the peer's OpenPGP certificate as a bytestring"
2025
1320
# If not an OpenPGP certificate...
2026
if (gnutls.library.functions.gnutls_certificate_type_get(
2027
session._c_object)
1321
if (gnutls.library.functions
1322
.gnutls_certificate_type_get(session._c_object)
2028
1323
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
2029
1324
# ...do the normal thing
2030
1325
return session.peer_certificate
2033
1328
.gnutls_certificate_get_peers
2034
1329
(session._c_object, ctypes.byref(list_size)))
2035
1330
if not bool(cert_list) and list_size.value != 0:
2036
raise gnutls.errors.GNUTLSError("error getting peer"
2037
" certificate")
1331
raise gnutls.errors.GNUTLSError(u"error getting peer"
1332
u" certificate")
2038
1333
if list_size.value == 0:
2039
1334
return None
2040
1335
cert = cert_list[0]
2044
1339
def fingerprint(openpgp):
2045
1340
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2046
1341
# New GnuTLS "datum" with the OpenPGP public key
2047
datum = gnutls.library.types.gnutls_datum_t(
2048
ctypes.cast(ctypes.c_char_p(openpgp),
2049
ctypes.POINTER(ctypes.c_ubyte)),
2050
ctypes.c_uint(len(openpgp)))
1342
datum = (gnutls.library.types
1343
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1344
ctypes.POINTER
1345
(ctypes.c_ubyte)),
1346
ctypes.c_uint(len(openpgp))))
2051
1347
# New empty GnuTLS certificate
2052
1348
crt = gnutls.library.types.gnutls_openpgp_crt_t()
2053
gnutls.library.functions.gnutls_openpgp_crt_init(
2054
ctypes.byref(crt))
1349
(gnutls.library.functions
1350
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2055
1351
# Import the OpenPGP public key into the certificate
2056
gnutls.library.functions.gnutls_openpgp_crt_import(
2057
crt, ctypes.byref(datum),
2058
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1352
(gnutls.library.functions
1353
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1354
gnutls.library.constants
1355
.GNUTLS_OPENPGP_FMT_RAW))
2059
1356
# Verify the self signature in the key
2060
1357
crtverify = ctypes.c_uint()
2061
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
2062
crt, 0, ctypes.byref(crtverify))
1358
(gnutls.library.functions
1359
.gnutls_openpgp_crt_verify_self(crt, 0,
1360
ctypes.byref(crtverify)))
2063
1361
if crtverify.value != 0:
2064
1362
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2065
raise gnutls.errors.CertificateSecurityError(
2066
"Verify failed")
1363
raise (gnutls.errors.CertificateSecurityError
1364
(u"Verify failed"))
2067
1365
# New buffer for the fingerprint
2068
1366
buf = ctypes.create_string_buffer(20)
2069
1367
buf_len = ctypes.c_size_t()
2070
1368
# Get the fingerprint from the certificate into the buffer
2071
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
2072
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1369
(gnutls.library.functions
1370
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1371
ctypes.byref(buf_len)))
2073
1372
# Deinit the certificate
2074
1373
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2075
1374
# Convert the buffer to a Python bytestring
2076
1375
fpr = ctypes.string_at(buf, buf_len.value)
2077
1376
# Convert the bytestring to hexadecimal notation
2078
hex_fpr = binascii.hexlify(fpr).upper()
1377
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
2079
1378
return hex_fpr
2080
1379
2081
1380
2082
1381
class MultiprocessingMixIn(object):
2083
1382
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2084
2085
1383
def sub_process_main(self, request, address):
2086
1384
try:
2087
1385
self.finish_request(request, address)
2088
except Exception:
1386
except:
2089
1387
self.handle_error(request, address)
2090
1388
self.close_request(request)
2091
1389
2092
1390
def process_request(self, request, address):
2093
1391
"""Start a new process to process the request."""
2094
proc = multiprocessing.Process(target = self.sub_process_main,
2095
args = (request, address))
2096
proc.start()
2097
return proc
2098
1392
multiprocessing.Process(target = self.sub_process_main,
1393
args = (request, address)).start()
2099
1394
2100
1395
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2101
1396
""" adds a pipe to the MixIn """
2102
2103
1397
def process_request(self, request, client_address):
2104
1398
"""Overrides and wraps the original process_request().
2105
1399
2106
1400
This function creates a new pipe in self.pipe
2107
1401
"""
2108
1402
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2109
2110
proc = MultiprocessingMixIn.process_request(self, request,
2111
client_address)
1403
1404
super(MultiprocessingMixInWithPipe,
1405
self).process_request(request, client_address)
2112
1406
self.child_pipe.close()
2113
self.add_pipe(parent_pipe, proc)
2114
2115
def add_pipe(self, parent_pipe, proc):
1407
self.add_pipe(parent_pipe)
1408
1409
def add_pipe(self, parent_pipe):
2116
1410
"""Dummy function; override as necessary"""
2117
raise NotImplementedError()
2118
1411
pass
2119
1412
2120
1413
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2121
1414
socketserver.TCPServer, object):
2126
1419
interface: None or a network interface name (string)
2127
1420
use_ipv6: Boolean; to use IPv6 or not
2128
1421
"""
2129
2130
1422
def __init__(self, server_address, RequestHandlerClass,
2131
interface=None,
2132
use_ipv6=True,
2133
socketfd=None):
2134
"""If socketfd is set, use that file descriptor instead of
2135
creating a new one with socket.socket().
2136
"""
1423
interface=None, use_ipv6=True):
2137
1424
self.interface = interface
2138
1425
if use_ipv6:
2139
1426
self.address_family = socket.AF_INET6
2140
if socketfd is not None:
2141
# Save the file descriptor
2142
self.socketfd = socketfd
2143
# Save the original socket.socket() function
2144
self.socket_socket = socket.socket
2145
# To implement --socket, we monkey patch socket.socket.
2146
#
2147
# (When socketserver.TCPServer is a new-style class, we
2148
# could make self.socket into a property instead of monkey
2149
# patching socket.socket.)
2150
#
2151
# Create a one-time-only replacement for socket.socket()
2152
@functools.wraps(socket.socket)
2153
def socket_wrapper(*args, **kwargs):
2154
# Restore original function so subsequent calls are
2155
# not affected.
2156
socket.socket = self.socket_socket
2157
del self.socket_socket
2158
# This time only, return a new socket object from the
2159
# saved file descriptor.
2160
return socket.fromfd(self.socketfd, *args, **kwargs)
2161
# Replace socket.socket() function with wrapper
2162
socket.socket = socket_wrapper
2163
# The socketserver.TCPServer.__init__ will call
2164
# socket.socket(), which might be our replacement,
2165
# socket_wrapper(), if socketfd was set.
2166
1427
socketserver.TCPServer.__init__(self, server_address,
2167
1428
RequestHandlerClass)
2168
2169
1429
def server_bind(self):
2170
1430
"""This overrides the normal server_bind() function
2171
1431
to bind to an interface if one was specified, and also NOT to
2172
1432
bind to an address or port if they were not specified."""
2173
1433
if self.interface is not None:
2174
1434
if SO_BINDTODEVICE is None:
2175
logger.error("SO_BINDTODEVICE does not exist;"
2176
" cannot bind to interface %s",
1435
logger.error(u"SO_BINDTODEVICE does not exist;"
1436
u" cannot bind to interface %s",
2177
1437
self.interface)
2178
1438
else:
2179
1439
try:
2180
self.socket.setsockopt(
2181
socket.SOL_SOCKET, SO_BINDTODEVICE,
2182
(self.interface + "\0").encode("utf-8"))
2183
except socket.error as error:
2184
if error.errno == errno.EPERM:
2185
logger.error("No permission to bind to"
2186
" interface %s", self.interface)
2187
elif error.errno == errno.ENOPROTOOPT:
2188
logger.error("SO_BINDTODEVICE not available;"
2189
" cannot bind to interface %s",
2190
self.interface)
2191
elif error.errno == errno.ENODEV:
2192
logger.error("Interface %s does not exist,"
2193
" cannot bind", self.interface)
1440
self.socket.setsockopt(socket.SOL_SOCKET,
1441
SO_BINDTODEVICE,
1442
str(self.interface
1443
+ u'\0'))
1444
except socket.error, error:
1445
if error[0] == errno.EPERM:
1446
logger.error(u"No permission to"
1447
u" bind to interface %s",
1448
self.interface)
1449
elif error[0] == errno.ENOPROTOOPT:
1450
logger.error(u"SO_BINDTODEVICE not available;"
1451
u" cannot bind to interface %s",
1452
self.interface)
2194
1453
else:
2195
1454
raise
2196
1455
# Only bind(2) the socket if we really need to.
2197
1456
if self.server_address[0] or self.server_address[1]:
2198
1457
if not self.server_address[0]:
2199
1458
if self.address_family == socket.AF_INET6:
2200
any_address = "::" # in6addr_any
1459
any_address = u"::" # in6addr_any
2201
1460
else:
2202
any_address = "0.0.0.0" # INADDR_ANY
1461
any_address = socket.INADDR_ANY
2203
1462
self.server_address = (any_address,
2204
1463
self.server_address[1])
2205
1464
elif not self.server_address[1]:
2206
self.server_address = (self.server_address[0], 0)
1465
self.server_address = (self.server_address[0],
1466
0)
2207
1467
# if self.interface:
2208
1468
# self.server_address = (self.server_address[0],
2209
1469
# 0, # port
2223
1483
2224
1484
Assumes a gobject.MainLoop event loop.
2225
1485
"""
2226
2227
1486
def __init__(self, server_address, RequestHandlerClass,
2228
interface=None,
2229
use_ipv6=True,
2230
clients=None,
2231
gnutls_priority=None,
2232
use_dbus=True,
2233
socketfd=None):
1487
interface=None, use_ipv6=True, clients=None,
1488
gnutls_priority=None, use_dbus=True):
2234
1489
self.enabled = False
2235
1490
self.clients = clients
2236
1491
if self.clients is None:
2237
self.clients = {}
1492
self.clients = set()
2238
1493
self.use_dbus = use_dbus
2239
1494
self.gnutls_priority = gnutls_priority
2240
1495
IPv6_TCPServer.__init__(self, server_address,
2241
1496
RequestHandlerClass,
2242
1497
interface = interface,
2243
use_ipv6 = use_ipv6,
2244
socketfd = socketfd)
2245
1498
use_ipv6 = use_ipv6)
2246
1499
def server_activate(self):
2247
1500
if self.enabled:
2248
1501
return socketserver.TCPServer.server_activate(self)
2249
2250
1502
def enable(self):
2251
1503
self.enabled = True
2252
2253
def add_pipe(self, parent_pipe, proc):
1504
def add_pipe(self, parent_pipe):
2254
1505
# Call "handle_ipc" for both data and EOF events
2255
gobject.io_add_watch(
2256
parent_pipe.fileno(),
2257
gobject.IO_IN | gobject.IO_HUP,
2258
functools.partial(self.handle_ipc,
2259
parent_pipe = parent_pipe,
2260
proc = proc))
2261
2262
def handle_ipc(self, source, condition,
2263
parent_pipe=None,
2264
proc = None,
1506
gobject.io_add_watch(parent_pipe.fileno(),
1507
gobject.IO_IN | gobject.IO_HUP,
1508
functools.partial(self.handle_ipc,
1509
parent_pipe = parent_pipe))
1510
1511
def handle_ipc(self, source, condition, parent_pipe=None,
2265
1512
client_object=None):
2266
# error, or the other end of multiprocessing.Pipe has closed
2267
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2268
# Wait for other process to exit
2269
proc.join()
1513
condition_names = {
1514
gobject.IO_IN: u"IN", # There is data to read.
1515
gobject.IO_OUT: u"OUT", # Data can be written (without
1516
# blocking).
1517
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1518
gobject.IO_ERR: u"ERR", # Error condition.
1519
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1520
# broken, usually for pipes and
1521
# sockets).
1522
}
1523
conditions_string = ' | '.join(name
1524
for cond, name in
1525
condition_names.iteritems()
1526
if cond & condition)
1527
# error or the other end of multiprocessing.Pipe has closed
1528
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2270
1529
return False
2271
1530
2272
1531
# Read a request from the child
2277
1536
fpr = request[1]
2278
1537
address = request[2]
2279
1538
2280
for c in self.clients.itervalues():
1539
for c in self.clients:
2281
1540
if c.fingerprint == fpr:
2282
1541
client = c
2283
1542
break
2284
1543
else:
2285
logger.info("Client not found for fingerprint: %s, ad"
2286
"dress: %s", fpr, address)
1544
logger.warning(u"Client not found for fingerprint: %s, ad"
1545
u"dress: %s", fpr, address)
2287
1546
if self.use_dbus:
2288
1547
# Emit D-Bus signal
2289
mandos_dbus_service.ClientNotFound(fpr,
2290
address[0])
1548
mandos_dbus_service.ClientNotFound(fpr, address[0])
2291
1549
parent_pipe.send(False)
2292
1550
return False
2293
1551
2294
gobject.io_add_watch(
2295
parent_pipe.fileno(),
2296
gobject.IO_IN | gobject.IO_HUP,
2297
functools.partial(self.handle_ipc,
2298
parent_pipe = parent_pipe,
2299
proc = proc,
2300
client_object = client))
1552
gobject.io_add_watch(parent_pipe.fileno(),
1553
gobject.IO_IN | gobject.IO_HUP,
1554
functools.partial(self.handle_ipc,
1555
parent_pipe = parent_pipe,
1556
client_object = client))
2301
1557
parent_pipe.send(True)
2302
# remove the old hook in favor of the new above hook on
2303
# same fileno
1558
# remove the old hook in favor of the new above hook on same fileno
2304
1559
return False
2305
1560
if command == 'funcall':
2306
1561
funcname = request[1]
2307
1562
args = request[2]
2308
1563
kwargs = request[3]
2309
1564
2310
parent_pipe.send(('data', getattr(client_object,
2311
funcname)(*args,
2312
**kwargs)))
2313
1565
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1566
2314
1567
if command == 'getattr':
2315
1568
attrname = request[1]
2316
if isinstance(client_object.__getattribute__(attrname),
2317
collections.Callable):
2318
parent_pipe.send(('function', ))
1569
if callable(client_object.__getattribute__(attrname)):
1570
parent_pipe.send(('function',))
2319
1571
else:
2320
parent_pipe.send((
2321
'data', client_object.__getattribute__(attrname)))
1572
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2322
1573
2323
1574
if command == 'setattr':
2324
1575
attrname = request[1]
2325
1576
value = request[2]
2326
1577
setattr(client_object, attrname, value)
2327
1578
2328
1579
return True
2329
1580
2330
1581
2331
def rfc3339_duration_to_delta(duration):
2332
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2333
2334
>>> rfc3339_duration_to_delta("P7D")
2335
datetime.timedelta(7)
2336
>>> rfc3339_duration_to_delta("PT60S")
2337
datetime.timedelta(0, 60)
2338
>>> rfc3339_duration_to_delta("PT60M")
2339
datetime.timedelta(0, 3600)
2340
>>> rfc3339_duration_to_delta("PT24H")
2341
datetime.timedelta(1)
2342
>>> rfc3339_duration_to_delta("P1W")
2343
datetime.timedelta(7)
2344
>>> rfc3339_duration_to_delta("PT5M30S")
2345
datetime.timedelta(0, 330)
2346
>>> rfc3339_duration_to_delta("P1DT3M20S")
2347
datetime.timedelta(1, 200)
2348
"""
2349
2350
# Parsing an RFC 3339 duration with regular expressions is not
2351
# possible - there would have to be multiple places for the same
2352
# values, like seconds. The current code, while more esoteric, is
2353
# cleaner without depending on a parsing library. If Python had a
2354
# built-in library for parsing we would use it, but we'd like to
2355
# avoid excessive use of external libraries.
2356
2357
# New type for defining tokens, syntax, and semantics all-in-one
2358
Token = collections.namedtuple("Token", (
2359
"regexp", # To match token; if "value" is not None, must have
2360
# a "group" containing digits
2361
"value", # datetime.timedelta or None
2362
"followers")) # Tokens valid after this token
2363
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2364
# the "duration" ABNF definition in RFC 3339, Appendix A.
2365
token_end = Token(re.compile(r"$"), None, frozenset())
2366
token_second = Token(re.compile(r"(\d+)S"),
2367
datetime.timedelta(seconds=1),
2368
frozenset((token_end, )))
2369
token_minute = Token(re.compile(r"(\d+)M"),
2370
datetime.timedelta(minutes=1),
2371
frozenset((token_second, token_end)))
2372
token_hour = Token(re.compile(r"(\d+)H"),
2373
datetime.timedelta(hours=1),
2374
frozenset((token_minute, token_end)))
2375
token_time = Token(re.compile(r"T"),
2376
None,
2377
frozenset((token_hour, token_minute,
2378
token_second)))
2379
token_day = Token(re.compile(r"(\d+)D"),
2380
datetime.timedelta(days=1),
2381
frozenset((token_time, token_end)))
2382
token_month = Token(re.compile(r"(\d+)M"),
2383
datetime.timedelta(weeks=4),
2384
frozenset((token_day, token_end)))
2385
token_year = Token(re.compile(r"(\d+)Y"),
2386
datetime.timedelta(weeks=52),
2387
frozenset((token_month, token_end)))
2388
token_week = Token(re.compile(r"(\d+)W"),
2389
datetime.timedelta(weeks=1),
2390
frozenset((token_end, )))
2391
token_duration = Token(re.compile(r"P"), None,
2392
frozenset((token_year, token_month,
2393
token_day, token_time,
2394
token_week)))
2395
# Define starting values
2396
value = datetime.timedelta() # Value so far
2397
found_token = None
2398
followers = frozenset((token_duration, )) # Following valid tokens
2399
s = duration # String left to parse
2400
# Loop until end token is found
2401
while found_token is not token_end:
2402
# Search for any currently valid tokens
2403
for token in followers:
2404
match = token.regexp.match(s)
2405
if match is not None:
2406
# Token found
2407
if token.value is not None:
2408
# Value found, parse digits
2409
factor = int(match.group(1), 10)
2410
# Add to value so far
2411
value += factor * token.value
2412
# Strip token from string
2413
s = token.regexp.sub("", s, 1)
2414
# Go to found token
2415
found_token = token
2416
# Set valid next tokens
2417
followers = found_token.followers
2418
break
2419
else:
2420
# No currently valid tokens were found
2421
raise ValueError("Invalid RFC 3339 duration: {!r}"
2422
.format(duration))
2423
# End token found
2424
return value
2425
2426
2427
1582
def string_to_delta(interval):
2428
1583
"""Parse a string and return a datetime.timedelta
2429
1584
2430
>>> string_to_delta('7d')
1585
>>> string_to_delta(u'7d')
2431
1586
datetime.timedelta(7)
2432
>>> string_to_delta('60s')
1587
>>> string_to_delta(u'60s')
2433
1588
datetime.timedelta(0, 60)
2434
>>> string_to_delta('60m')
1589
>>> string_to_delta(u'60m')
2435
1590
datetime.timedelta(0, 3600)
2436
>>> string_to_delta('24h')
1591
>>> string_to_delta(u'24h')
2437
1592
datetime.timedelta(1)
2438
>>> string_to_delta('1w')
1593
>>> string_to_delta(u'1w')
2439
1594
datetime.timedelta(7)
2440
>>> string_to_delta('5m 30s')
1595
>>> string_to_delta(u'5m 30s')
2441
1596
datetime.timedelta(0, 330)
2442
1597
"""
2443
2444
try:
2445
return rfc3339_duration_to_delta(interval)
2446
except ValueError:
2447
pass
2448
2449
1598
timevalue = datetime.timedelta(0)
2450
1599
for s in interval.split():
2451
1600
try:
2452
suffix = s[-1]
1601
suffix = unicode(s[-1])
2453
1602
value = int(s[:-1])
2454
if suffix == "d":
1603
if suffix == u"d":
2455
1604
delta = datetime.timedelta(value)
2456
elif suffix == "s":
1605
elif suffix == u"s":
2457
1606
delta = datetime.timedelta(0, value)
2458
elif suffix == "m":
1607
elif suffix == u"m":
2459
1608
delta = datetime.timedelta(0, 0, 0, 0, value)
2460
elif suffix == "h":
1609
elif suffix == u"h":
2461
1610
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
2462
elif suffix == "w":
1611
elif suffix == u"w":
2463
1612
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2464
1613
else:
2465
raise ValueError("Unknown suffix {!r}".format(suffix))
2466
except IndexError as e:
2467
raise ValueError(*(e.args))
1614
raise ValueError(u"Unknown suffix %r" % suffix)
1615
except (ValueError, IndexError), e:
1616
raise ValueError(e.message)
2468
1617
timevalue += delta
2469
1618
return timevalue
2470
1619
2471
1620
1621
def if_nametoindex(interface):
1622
"""Call the C function if_nametoindex(), or equivalent
1623
1624
Note: This function cannot accept a unicode string."""
1625
global if_nametoindex
1626
try:
1627
if_nametoindex = (ctypes.cdll.LoadLibrary
1628
(ctypes.util.find_library(u"c"))
1629
.if_nametoindex)
1630
except (OSError, AttributeError):
1631
logger.warning(u"Doing if_nametoindex the hard way")
1632
def if_nametoindex(interface):
1633
"Get an interface index the hard way, i.e. using fcntl()"
1634
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1635
with contextlib.closing(socket.socket()) as s:
1636
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1637
struct.pack(str(u"16s16x"),
1638
interface))
1639
interface_index = struct.unpack(str(u"I"),
1640
ifreq[16:20])[0]
1641
return interface_index
1642
return if_nametoindex(interface)
1643
1644
2472
1645
def daemon(nochdir = False, noclose = False):
2473
1646
"""See daemon(3). Standard BSD Unix function.
2474
1647
2477
1650
sys.exit()
2478
1651
os.setsid()
2479
1652
if not nochdir:
2480
os.chdir("/")
1653
os.chdir(u"/")
2481
1654
if os.fork():
2482
1655
sys.exit()
2483
1656
if not noclose:
2484
1657
# Close all standard open file descriptors
2485
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1658
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2486
1659
if not stat.S_ISCHR(os.fstat(null).st_mode):
2487
1660
raise OSError(errno.ENODEV,
2488
"{} not a character device"
2489
.format(os.devnull))
1661
u"%s not a character device"
1662
% os.path.devnull)
2490
1663
os.dup2(null, sys.stdin.fileno())
2491
1664
os.dup2(null, sys.stdout.fileno())
2492
1665
os.dup2(null, sys.stderr.fileno())
2499
1672
##################################################################
2500
1673
# Parsing of options, both command line and config file
2501
1674
2502
parser = argparse.ArgumentParser()
2503
parser.add_argument("-v", "--version", action="version",
2504
version = "%(prog)s {}".format(version),
2505
help="show version number and exit")
2506
parser.add_argument("-i", "--interface", metavar="IF",
2507
help="Bind to interface IF")
2508
parser.add_argument("-a", "--address",
2509
help="Address to listen for requests on")
2510
parser.add_argument("-p", "--port", type=int,
2511
help="Port number to receive requests on")
2512
parser.add_argument("--check", action="store_true",
2513
help="Run self-test")
2514
parser.add_argument("--debug", action="store_true",
2515
help="Debug mode; run in foreground and log"
2516
" to terminal", default=None)
2517
parser.add_argument("--debuglevel", metavar="LEVEL",
2518
help="Debug level for stdout output")
2519
parser.add_argument("--priority", help="GnuTLS"
2520
" priority string (see GnuTLS documentation)")
2521
parser.add_argument("--servicename",
2522
metavar="NAME", help="Zeroconf service name")
2523
parser.add_argument("--configdir",
2524
default="/etc/mandos", metavar="DIR",
2525
help="Directory to search for configuration"
2526
" files")
2527
parser.add_argument("--no-dbus", action="store_false",
2528
dest="use_dbus", help="Do not provide D-Bus"
2529
" system bus interface", default=None)
2530
parser.add_argument("--no-ipv6", action="store_false",
2531
dest="use_ipv6", help="Do not use IPv6",
2532
default=None)
2533
parser.add_argument("--no-restore", action="store_false",
2534
dest="restore", help="Do not restore stored"
2535
" state", default=None)
2536
parser.add_argument("--socket", type=int,
2537
help="Specify a file descriptor to a network"
2538
" socket to use instead of creating one")
2539
parser.add_argument("--statedir", metavar="DIR",
2540
help="Directory to save/restore state in")
2541
parser.add_argument("--foreground", action="store_true",
2542
help="Run in foreground", default=None)
2543
parser.add_argument("--no-zeroconf", action="store_false",
2544
dest="zeroconf", help="Do not use Zeroconf",
2545
default=None)
2546
2547
options = parser.parse_args()
1675
parser = optparse.OptionParser(version = "%%prog %s" % version)
1676
parser.add_option("-i", u"--interface", type=u"string",
1677
metavar="IF", help=u"Bind to interface IF")
1678
parser.add_option("-a", u"--address", type=u"string",
1679
help=u"Address to listen for requests on")
1680
parser.add_option("-p", u"--port", type=u"int",
1681
help=u"Port number to receive requests on")
1682
parser.add_option("--check", action=u"store_true",
1683
help=u"Run self-test")
1684
parser.add_option("--debug", action=u"store_true",
1685
help=u"Debug mode; run in foreground and log to"
1686
u" terminal")
1687
parser.add_option("--debuglevel", type=u"string", metavar="LEVEL",
1688
help=u"Debug level for stdout output")
1689
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1690
u" priority string (see GnuTLS documentation)")
1691
parser.add_option("--servicename", type=u"string",
1692
metavar=u"NAME", help=u"Zeroconf service name")
1693
parser.add_option("--configdir", type=u"string",
1694
default=u"/etc/mandos", metavar=u"DIR",
1695
help=u"Directory to search for configuration"
1696
u" files")
1697
parser.add_option("--no-dbus", action=u"store_false",
1698
dest=u"use_dbus", help=u"Do not provide D-Bus"
1699
u" system bus interface")
1700
parser.add_option("--no-ipv6", action=u"store_false",
1701
dest=u"use_ipv6", help=u"Do not use IPv6")
1702
options = parser.parse_args()[0]
2548
1703
2549
1704
if options.check:
2550
1705
import doctest
2551
fail_count, test_count = doctest.testmod()
2552
sys.exit(os.EX_OK if fail_count == 0 else 1)
1706
doctest.testmod()
1707
sys.exit()
2553
1708
2554
1709
# Default values for config file for server-global settings
2555
server_defaults = { "interface": "",
2556
"address": "",
2557
"port": "",
2558
"debug": "False",
2559
"priority":
2560
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2561
":+SIGN-DSA-SHA256",
2562
"servicename": "Mandos",
2563
"use_dbus": "True",
2564
"use_ipv6": "True",
2565
"debuglevel": "",
2566
"restore": "True",
2567
"socket": "",
2568
"statedir": "/var/lib/mandos",
2569
"foreground": "False",
2570
"zeroconf": "True",
2571
}
1710
server_defaults = { u"interface": u"",
1711
u"address": u"",
1712
u"port": u"",
1713
u"debug": u"False",
1714
u"priority":
1715
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1716
u"servicename": u"Mandos",
1717
u"use_dbus": u"True",
1718
u"use_ipv6": u"True",
1719
u"debuglevel": u"",
1720
}
2572
1721
2573
1722
# Parse config file for server-global settings
2574
1723
server_config = configparser.SafeConfigParser(server_defaults)
2575
1724
del server_defaults
2576
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1725
server_config.read(os.path.join(options.configdir,
1726
u"mandos.conf"))
2577
1727
# Convert the SafeConfigParser object to a dict
2578
1728
server_settings = server_config.defaults()
2579
1729
# Use the appropriate methods on the non-string config options
2580
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2581
server_settings[option] = server_config.getboolean("DEFAULT",
1730
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1731
server_settings[option] = server_config.getboolean(u"DEFAULT",
2582
1732
option)
2583
1733
if server_settings["port"]:
2584
server_settings["port"] = server_config.getint("DEFAULT",
2585
"port")
2586
if server_settings["socket"]:
2587
server_settings["socket"] = server_config.getint("DEFAULT",
2588
"socket")
2589
# Later, stdin will, and stdout and stderr might, be dup'ed
2590
# over with an opened os.devnull. But we don't want this to
2591
# happen with a supplied network socket.
2592
if 0 <= server_settings["socket"] <= 2:
2593
server_settings["socket"] = os.dup(server_settings
2594
["socket"])
1734
server_settings["port"] = server_config.getint(u"DEFAULT",
1735
u"port")
2595
1736
del server_config
2596
1737
2597
1738
# Override the settings from the config file with command line
2598
1739
# options, if set.
2599
for option in ("interface", "address", "port", "debug",
2600
"priority", "servicename", "configdir", "use_dbus",
2601
"use_ipv6", "debuglevel", "restore", "statedir",
2602
"socket", "foreground", "zeroconf"):
1740
for option in (u"interface", u"address", u"port", u"debug",
1741
u"priority", u"servicename", u"configdir",
1742
u"use_dbus", u"use_ipv6", u"debuglevel"):
2603
1743
value = getattr(options, option)
2604
1744
if value is not None:
2605
1745
server_settings[option] = value
2606
1746
del options
2607
1747
# Force all strings to be unicode
2608
1748
for option in server_settings.keys():
2609
if isinstance(server_settings[option], bytes):
2610
server_settings[option] = (server_settings[option]
2611
.decode("utf-8"))
2612
# Force all boolean options to be boolean
2613
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2614
"foreground", "zeroconf"):
2615
server_settings[option] = bool(server_settings[option])
2616
# Debug implies foreground
2617
if server_settings["debug"]:
2618
server_settings["foreground"] = True
1749
if type(server_settings[option]) is str:
1750
server_settings[option] = unicode(server_settings[option])
2619
1751
# Now we have our good server settings in "server_settings"
2620
1752
2621
1753
##################################################################
2622
1754
2623
if (not server_settings["zeroconf"]
2624
and not (server_settings["port"]
2625
or server_settings["socket"] != "")):
2626
parser.error("Needs port or socket to work without Zeroconf")
2627
2628
1755
# For convenience
2629
debug = server_settings["debug"]
2630
debuglevel = server_settings["debuglevel"]
2631
use_dbus = server_settings["use_dbus"]
2632
use_ipv6 = server_settings["use_ipv6"]
2633
stored_state_path = os.path.join(server_settings["statedir"],
2634
stored_state_file)
2635
foreground = server_settings["foreground"]
2636
zeroconf = server_settings["zeroconf"]
2637
2638
if debug:
2639
initlogger(debug, logging.DEBUG)
2640
else:
2641
if not debuglevel:
2642
initlogger(debug)
2643
else:
2644
level = getattr(logging, debuglevel.upper())
2645
initlogger(debug, level)
2646
2647
if server_settings["servicename"] != "Mandos":
2648
syslogger.setFormatter(
2649
logging.Formatter('Mandos ({}) [%(process)d]:'
2650
' %(levelname)s: %(message)s'.format(
2651
server_settings["servicename"])))
1756
debug = server_settings[u"debug"]
1757
debuglevel = server_settings[u"debuglevel"]
1758
use_dbus = server_settings[u"use_dbus"]
1759
use_ipv6 = server_settings[u"use_ipv6"]
1760
1761
if server_settings[u"servicename"] != u"Mandos":
1762
syslogger.setFormatter(logging.Formatter
1763
(u'Mandos (%s) [%%(process)d]:'
1764
u' %%(levelname)s: %%(message)s'
1765
% server_settings[u"servicename"]))
2652
1766
2653
1767
# Parse config file with clients
2654
client_config = configparser.SafeConfigParser(Client
2655
.client_defaults)
2656
client_config.read(os.path.join(server_settings["configdir"],
2657
"clients.conf"))
1768
client_defaults = { u"timeout": u"1h",
1769
u"interval": u"5m",
1770
u"checker": u"fping -q -- %%(host)s",
1771
u"host": u"",
1772
u"approval_delay": u"0s",
1773
u"approval_duration": u"1s",
1774
}
1775
client_config = configparser.SafeConfigParser(client_defaults)
1776
client_config.read(os.path.join(server_settings[u"configdir"],
1777
u"clients.conf"))
2658
1778
2659
1779
global mandos_dbus_service
2660
1780
mandos_dbus_service = None
2661
1781
2662
socketfd = None
2663
if server_settings["socket"] != "":
2664
socketfd = server_settings["socket"]
2665
tcp_server = MandosServer(
2666
(server_settings["address"], server_settings["port"]),
2667
ClientHandler,
2668
interface=(server_settings["interface"] or None),
2669
use_ipv6=use_ipv6,
2670
gnutls_priority=server_settings["priority"],
2671
use_dbus=use_dbus,
2672
socketfd=socketfd)
2673
if not foreground:
2674
pidfilename = "/run/mandos.pid"
2675
if not os.path.isdir("/run/."):
2676
pidfilename = "/var/run/mandos.pid"
2677
pidfile = None
1782
tcp_server = MandosServer((server_settings[u"address"],
1783
server_settings[u"port"]),
1784
ClientHandler,
1785
interface=(server_settings[u"interface"]
1786
or None),
1787
use_ipv6=use_ipv6,
1788
gnutls_priority=
1789
server_settings[u"priority"],
1790
use_dbus=use_dbus)
1791
if not debug:
1792
pidfilename = u"/var/run/mandos.pid"
2678
1793
try:
2679
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2680
except IOError as e:
2681
logger.error("Could not open file %r", pidfilename,
2682
exc_info=e)
1794
pidfile = open(pidfilename, u"w")
1795
except IOError:
1796
logger.error(u"Could not open file %r", pidfilename)
2683
1797
2684
for name in ("_mandos", "mandos", "nobody"):
1798
try:
1799
uid = pwd.getpwnam(u"_mandos").pw_uid
1800
gid = pwd.getpwnam(u"_mandos").pw_gid
1801
except KeyError:
2685
1802
try:
2686
uid = pwd.getpwnam(name).pw_uid
2687
gid = pwd.getpwnam(name).pw_gid
2688
break
1803
uid = pwd.getpwnam(u"mandos").pw_uid
1804
gid = pwd.getpwnam(u"mandos").pw_gid
2689
1805
except KeyError:
2690
continue
2691
else:
2692
uid = 65534
2693
gid = 65534
1806
try:
1807
uid = pwd.getpwnam(u"nobody").pw_uid
1808
gid = pwd.getpwnam(u"nobody").pw_gid
1809
except KeyError:
1810
uid = 65534
1811
gid = 65534
2694
1812
try:
2695
1813
os.setgid(gid)
2696
1814
os.setuid(uid)
2697
except OSError as error:
2698
if error.errno != errno.EPERM:
2699
raise
1815
except OSError, error:
1816
if error[0] != errno.EPERM:
1817
raise error
2700
1818
1819
if not debug and not debuglevel:
1820
syslogger.setLevel(logging.WARNING)
1821
console.setLevel(logging.WARNING)
1822
if debuglevel:
1823
level = getattr(logging, debuglevel.upper())
1824
syslogger.setLevel(level)
1825
console.setLevel(level)
1826
2701
1827
if debug:
2702
1828
# Enable all possible GnuTLS debugging
2703
1829
2707
1833
2708
1834
@gnutls.library.types.gnutls_log_func
2709
1835
def debug_gnutls(level, string):
2710
logger.debug("GnuTLS: %s", string[:-1])
1836
logger.debug(u"GnuTLS: %s", string[:-1])
2711
1837
2712
gnutls.library.functions.gnutls_global_set_log_function(
2713
debug_gnutls)
1838
(gnutls.library.functions
1839
.gnutls_global_set_log_function(debug_gnutls))
2714
1840
2715
1841
# Redirect stdin so all checkers get /dev/null
2716
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1842
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2717
1843
os.dup2(null, sys.stdin.fileno())
2718
1844
if null > 2:
2719
1845
os.close(null)
2720
2721
# Need to fork before connecting to D-Bus
2722
if not foreground:
2723
# Close all input and output, do double fork, etc.
2724
daemon()
2725
2726
# multiprocessing will use threads, so before we use gobject we
2727
# need to inform gobject that threads will be used.
2728
gobject.threads_init()
1846
else:
1847
# No console logging
1848
logger.removeHandler(console)
1849
2729
1850
2730
1851
global main_loop
2731
1852
# From the Avahi example code
2732
DBusGMainLoop(set_as_default=True)
1853
DBusGMainLoop(set_as_default=True )
2733
1854
main_loop = gobject.MainLoop()
2734
1855
bus = dbus.SystemBus()
2735
1856
# End of Avahi example code
2736
1857
if use_dbus:
2737
1858
try:
2738
bus_name = dbus.service.BusName("se.recompile.Mandos",
2739
bus,
2740
do_not_queue=True)
2741
old_bus_name = dbus.service.BusName(
2742
"se.bsnet.fukt.Mandos", bus,
2743
do_not_queue=True)
2744
except dbus.exceptions.DBusException as e:
2745
logger.error("Disabling D-Bus:", exc_info=e)
1859
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1860
bus, do_not_queue=True)
1861
except dbus.exceptions.NameExistsException, e:
1862
logger.error(unicode(e) + u", disabling D-Bus")
2746
1863
use_dbus = False
2747
server_settings["use_dbus"] = False
1864
server_settings[u"use_dbus"] = False
2748
1865
tcp_server.use_dbus = False
2749
if zeroconf:
2750
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2751
service = AvahiServiceToSyslog(
2752
name = server_settings["servicename"],
2753
servicetype = "_mandos._tcp",
2754
protocol = protocol,
2755
bus = bus)
2756
if server_settings["interface"]:
2757
service.interface = if_nametoindex(
2758
server_settings["interface"].encode("utf-8"))
2759
1866
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1867
service = AvahiService(name = server_settings[u"servicename"],
1868
servicetype = u"_mandos._tcp",
1869
protocol = protocol, bus = bus)
1870
if server_settings["interface"]:
1871
service.interface = (if_nametoindex
1872
(str(server_settings[u"interface"])))
1873
1874
if not debug:
1875
# Close all input and output, do double fork, etc.
1876
daemon()
1877
2760
1878
global multiprocessing_manager
2761
1879
multiprocessing_manager = multiprocessing.Manager()
2762
1880
2763
1881
client_class = Client
2764
1882
if use_dbus:
2765
1883
client_class = functools.partial(ClientDBus, bus = bus)
2766
2767
client_settings = Client.config_parser(client_config)
2768
old_client_settings = {}
2769
clients_data = {}
2770
2771
# This is used to redirect stdout and stderr for checker processes
2772
global wnull
2773
wnull = open(os.devnull, "w") # A writable /dev/null
2774
# Only used if server is running in foreground but not in debug
2775
# mode
2776
if debug or not foreground:
2777
wnull.close()
2778
2779
# Get client data and settings from last running state.
2780
if server_settings["restore"]:
2781
try:
2782
with open(stored_state_path, "rb") as stored_state:
2783
clients_data, old_client_settings = pickle.load(
2784
stored_state)
2785
os.remove(stored_state_path)
2786
except IOError as e:
2787
if e.errno == errno.ENOENT:
2788
logger.warning("Could not load persistent state:"
2789
" {}".format(os.strerror(e.errno)))
2790
else:
2791
logger.critical("Could not load persistent state:",
2792
exc_info=e)
2793
raise
2794
except EOFError as e:
2795
logger.warning("Could not load persistent state: "
2796
"EOFError:",
2797
exc_info=e)
2798
2799
with PGPEngine() as pgp:
2800
for client_name, client in clients_data.items():
2801
# Skip removed clients
2802
if client_name not in client_settings:
2803
continue
2804
2805
# Decide which value to use after restoring saved state.
2806
# We have three different values: Old config file,
2807
# new config file, and saved state.
2808
# New config value takes precedence if it differs from old
2809
# config value, otherwise use saved state.
2810
for name, value in client_settings[client_name].items():
2811
try:
2812
# For each value in new config, check if it
2813
# differs from the old config value (Except for
2814
# the "secret" attribute)
2815
if (name != "secret"
2816
and (value !=
2817
old_client_settings[client_name][name])):
2818
client[name] = value
2819
except KeyError:
2820
pass
2821
2822
# Clients who has passed its expire date can still be
2823
# enabled if its last checker was successful. A Client
2824
# whose checker succeeded before we stored its state is
2825
# assumed to have successfully run all checkers during
2826
# downtime.
2827
if client["enabled"]:
2828
if datetime.datetime.utcnow() >= client["expires"]:
2829
if not client["last_checked_ok"]:
2830
logger.warning(
2831
"disabling client {} - Client never "
2832
"performed a successful checker".format(
2833
client_name))
2834
client["enabled"] = False
2835
elif client["last_checker_status"] != 0:
2836
logger.warning(
2837
"disabling client {} - Client last"
2838
" checker failed with error code"
2839
" {}".format(
2840
client_name,
2841
client["last_checker_status"]))
2842
client["enabled"] = False
2843
else:
2844
client["expires"] = (
2845
datetime.datetime.utcnow()
2846
+ client["timeout"])
2847
logger.debug("Last checker succeeded,"
2848
" keeping {} enabled".format(
2849
client_name))
1884
def client_config_items(config, section):
1885
special_settings = {
1886
"approved_by_default":
1887
lambda: config.getboolean(section,
1888
"approved_by_default"),
1889
}
1890
for name, value in config.items(section):
2850
1891
try:
2851
client["secret"] = pgp.decrypt(
2852
client["encrypted_secret"],
2853
client_settings[client_name]["secret"])
2854
except PGPError:
2855
# If decryption fails, we use secret from new settings
2856
logger.debug("Failed to decrypt {} old secret".format(
2857
client_name))
2858
client["secret"] = (client_settings[client_name]
2859
["secret"])
2860
2861
# Add/remove clients based on new changes made to config
2862
for client_name in (set(old_client_settings)
2863
- set(client_settings)):
2864
del clients_data[client_name]
2865
for client_name in (set(client_settings)
2866
- set(old_client_settings)):
2867
clients_data[client_name] = client_settings[client_name]
2868
2869
# Create all client objects
2870
for client_name, client in clients_data.items():
2871
tcp_server.clients[client_name] = client_class(
2872
name = client_name,
2873
settings = client,
2874
server_settings = server_settings)
2875
1892
yield (name, special_settings[name]())
1893
except KeyError:
1894
yield (name, value)
1895
1896
tcp_server.clients.update(set(
1897
client_class(name = section,
1898
config= dict(client_config_items(
1899
client_config, section)))
1900
for section in client_config.sections()))
2876
1901
if not tcp_server.clients:
2877
logger.warning("No clients defined")
2878
2879
if not foreground:
2880
if pidfile is not None:
2881
pid = os.getpid()
2882
try:
2883
with pidfile:
2884
print(pid, file=pidfile)
2885
except IOError:
2886
logger.error("Could not write to file %r with PID %d",
2887
pidfilename, pid)
2888
del pidfile
1902
logger.warning(u"No clients defined")
1903
1904
if not debug:
1905
try:
1906
with pidfile:
1907
pid = os.getpid()
1908
pidfile.write(str(pid) + "\n")
1909
del pidfile
1910
except IOError:
1911
logger.error(u"Could not write to file %r with PID %d",
1912
pidfilename, pid)
1913
except NameError:
1914
# "pidfile" was never created
1915
pass
2889
1916
del pidfilename
2890
1917
1918
signal.signal(signal.SIGINT, signal.SIG_IGN)
1919
2891
1920
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2892
1921
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2893
1922
2894
1923
if use_dbus:
2895
2896
@alternate_dbus_interfaces(
2897
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2898
class MandosDBusService(DBusObjectWithObjectManager):
1924
class MandosDBusService(dbus.service.Object):
2899
1925
"""A D-Bus proxy object"""
2900
2901
1926
def __init__(self):
2902
dbus.service.Object.__init__(self, bus, "/")
2903
2904
_interface = "se.recompile.Mandos"
2905
2906
@dbus.service.signal(_interface, signature="o")
1927
dbus.service.Object.__init__(self, bus, u"/")
1928
_interface = u"se.bsnet.fukt.Mandos"
1929
1930
@dbus.service.signal(_interface, signature=u"o")
2907
1931
def ClientAdded(self, objpath):
2908
1932
"D-Bus signal"
2909
1933
pass
2910
1934
2911
@dbus.service.signal(_interface, signature="ss")
1935
@dbus.service.signal(_interface, signature=u"ss")
2912
1936
def ClientNotFound(self, fingerprint, address):
2913
1937
"D-Bus signal"
2914
1938
pass
2915
1939
2916
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2917
"true"})
2918
@dbus.service.signal(_interface, signature="os")
1940
@dbus.service.signal(_interface, signature=u"os")
2919
1941
def ClientRemoved(self, objpath, name):
2920
1942
"D-Bus signal"
2921
1943
pass
2922
1944
2923
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2924
"true"})
2925
@dbus.service.method(_interface, out_signature="ao")
1945
@dbus.service.method(_interface, out_signature=u"ao")
2926
1946
def GetAllClients(self):
2927
1947
"D-Bus method"
2928
return dbus.Array(c.dbus_object_path for c in
2929
tcp_server.clients.itervalues())
1948
return dbus.Array(c.dbus_object_path
1949
for c in tcp_server.clients)
2930
1950
2931
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2932
"true"})
2933
1951
@dbus.service.method(_interface,
2934
out_signature="a{oa{sv}}")
1952
out_signature=u"a{oa{sv}}")
2935
1953
def GetAllClientsWithProperties(self):
2936
1954
"D-Bus method"
2937
1955
return dbus.Dictionary(
2938
{ c.dbus_object_path: c.GetAll(
2939
"se.recompile.Mandos.Client")
2940
for c in tcp_server.clients.itervalues() },
2941
signature="oa{sv}")
1956
((c.dbus_object_path, c.GetAll(u""))
1957
for c in tcp_server.clients),
1958
signature=u"oa{sv}")
2942
1959
2943
@dbus.service.method(_interface, in_signature="o")
1960
@dbus.service.method(_interface, in_signature=u"o")
2944
1961
def RemoveClient(self, object_path):
2945
1962
"D-Bus method"
2946
for c in tcp_server.clients.itervalues():
1963
for c in tcp_server.clients:
2947
1964
if c.dbus_object_path == object_path:
2948
del tcp_server.clients[c.name]
1965
tcp_server.clients.remove(c)
2949
1966
c.remove_from_connection()
2950
# Don't signal the disabling
1967
# Don't signal anything except ClientRemoved
2951
1968
c.disable(quiet=True)
2952
# Emit D-Bus signal for removal
2953
self.client_removed_signal(c)
1969
# Emit D-Bus signal
1970
self.ClientRemoved(object_path, c.name)
2954
1971
return
2955
1972
raise KeyError(object_path)
2956
1973
2957
1974
del _interface
2958
2959
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
2960
out_signature = "a{oa{sa{sv}}}")
2961
def GetManagedObjects(self):
2962
"""D-Bus method"""
2963
return dbus.Dictionary(
2964
{ client.dbus_object_path:
2965
dbus.Dictionary(
2966
{ interface: client.GetAll(interface)
2967
for interface in
2968
client._get_all_interface_names()})
2969
for client in tcp_server.clients.values()})
2970
2971
def client_added_signal(self, client):
2972
"""Send the new standard signal and the old signal"""
2973
if use_dbus:
2974
# New standard signal
2975
self.InterfacesAdded(
2976
client.dbus_object_path,
2977
dbus.Dictionary(
2978
{ interface: client.GetAll(interface)
2979
for interface in
2980
client._get_all_interface_names()}))
2981
# Old signal
2982
self.ClientAdded(client.dbus_object_path)
2983
2984
def client_removed_signal(self, client):
2985
"""Send the new standard signal and the old signal"""
2986
if use_dbus:
2987
# New standard signal
2988
self.InterfacesRemoved(
2989
client.dbus_object_path,
2990
client._get_all_interface_names())
2991
# Old signal
2992
self.ClientRemoved(client.dbus_object_path,
2993
client.name)
2994
1975
2995
1976
mandos_dbus_service = MandosDBusService()
2996
1977
2997
1978
def cleanup():
2998
1979
"Cleanup function; run on exit"
2999
if zeroconf:
3000
service.cleanup()
3001
3002
multiprocessing.active_children()
3003
wnull.close()
3004
if not (tcp_server.clients or client_settings):
3005
return
3006
3007
# Store client before exiting. Secrets are encrypted with key
3008
# based on what config file has. If config file is
3009
# removed/edited, old secret will thus be unrecovable.
3010
clients = {}
3011
with PGPEngine() as pgp:
3012
for client in tcp_server.clients.itervalues():
3013
key = client_settings[client.name]["secret"]
3014
client.encrypted_secret = pgp.encrypt(client.secret,
3015
key)
3016
client_dict = {}
3017
3018
# A list of attributes that can not be pickled
3019
# + secret.
3020
exclude = { "bus", "changedstate", "secret",
3021
"checker", "server_settings" }
3022
for name, typ in inspect.getmembers(dbus.service
3023
.Object):
3024
exclude.add(name)
3025
3026
client_dict["encrypted_secret"] = (client
3027
.encrypted_secret)
3028
for attr in client.client_structure:
3029
if attr not in exclude:
3030
client_dict[attr] = getattr(client, attr)
3031
3032
clients[client.name] = client_dict
3033
del client_settings[client.name]["secret"]
3034
3035
try:
3036
with tempfile.NamedTemporaryFile(
3037
mode='wb',
3038
suffix=".pickle",
3039
prefix='clients-',
3040
dir=os.path.dirname(stored_state_path),
3041
delete=False) as stored_state:
3042
pickle.dump((clients, client_settings), stored_state)
3043
tempname = stored_state.name
3044
os.rename(tempname, stored_state_path)
3045
except (IOError, OSError) as e:
3046
if not debug:
3047
try:
3048
os.remove(tempname)
3049
except NameError:
3050
pass
3051
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3052
logger.warning("Could not save persistent state: {}"
3053
.format(os.strerror(e.errno)))
3054
else:
3055
logger.warning("Could not save persistent state:",
3056
exc_info=e)
3057
raise
3058
3059
# Delete all clients, and settings from config
1980
service.cleanup()
1981
3060
1982
while tcp_server.clients:
3061
name, client = tcp_server.clients.popitem()
1983
client = tcp_server.clients.pop()
3062
1984
if use_dbus:
3063
1985
client.remove_from_connection()
3064
# Don't signal the disabling
1986
client.disable_hook = None
1987
# Don't signal anything except ClientRemoved
3065
1988
client.disable(quiet=True)
3066
# Emit D-Bus signal for removal
3067
mandos_dbus_service.client_removed_signal(client)
3068
client_settings.clear()
1989
if use_dbus:
1990
# Emit D-Bus signal
1991
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1992
client.name)
3069
1993
3070
1994
atexit.register(cleanup)
3071
1995
3072
for client in tcp_server.clients.itervalues():
1996
for client in tcp_server.clients:
3073
1997
if use_dbus:
3074
# Emit D-Bus signal for adding
3075
mandos_dbus_service.client_added_signal(client)
3076
# Need to initiate checking of clients
3077
if client.enabled:
3078
client.init_checker()
1998
# Emit D-Bus signal
1999
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2000
client.enable()
3079
2001
3080
2002
tcp_server.enable()
3081
2003
tcp_server.server_activate()
3082
2004
3083
2005
# Find out what port we got
3084
if zeroconf:
3085
service.port = tcp_server.socket.getsockname()[1]
2006
service.port = tcp_server.socket.getsockname()[1]
3086
2007
if use_ipv6:
3087
logger.info("Now listening on address %r, port %d,"
3088
" flowinfo %d, scope_id %d",
3089
*tcp_server.socket.getsockname())
2008
logger.info(u"Now listening on address %r, port %d,"
2009
" flowinfo %d, scope_id %d"
2010
% tcp_server.socket.getsockname())
3090
2011
else: # IPv4
3091
logger.info("Now listening on address %r, port %d",
3092
*tcp_server.socket.getsockname())
2012
logger.info(u"Now listening on address %r, port %d"
2013
% tcp_server.socket.getsockname())
3093
2014
3094
2015
#service.interface = tcp_server.socket.getsockname()[3]
3095
2016
3096
2017
try:
3097
if zeroconf:
3098
# From the Avahi example code
3099
try:
3100
service.activate()
3101
except dbus.exceptions.DBusException as error:
3102
logger.critical("D-Bus Exception", exc_info=error)
3103
cleanup()
3104
sys.exit(1)
3105
# End of Avahi example code
2018
# From the Avahi example code
2019
try:
2020
service.activate()
2021
except dbus.exceptions.DBusException, error:
2022
logger.critical(u"DBusException: %s", error)
2023
cleanup()
2024
sys.exit(1)
2025
# End of Avahi example code
3106
2026
3107
2027
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3108
2028
lambda *args, **kwargs:
3109
2029
(tcp_server.handle_request
3110
2030
(*args[2:], **kwargs) or True))
3111
2031
3112
logger.debug("Starting main loop")
2032
logger.debug(u"Starting main loop")
3113
2033
main_loop.run()
3114
except AvahiError as error:
3115
logger.critical("Avahi Error", exc_info=error)
2034
except AvahiError, error:
2035
logger.critical(u"AvahiError: %s", error)
3116
2036
cleanup()
3117
2037
sys.exit(1)
3118
2038
except KeyboardInterrupt:
3119
2039
if debug:
3120
print("", file=sys.stderr)
3121
logger.debug("Server received KeyboardInterrupt")
3122
logger.debug("Server exiting")
2040
print >> sys.stderr
2041
logger.debug(u"Server received KeyboardInterrupt")
2042
logger.debug(u"Server exiting")
3123
2043
# Must run before the D-Bus bus name gets deregistered
3124
2044
cleanup()
3125
2045
3126
3127
2046
if __name__ == '__main__':
3128
2047
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0