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- Committer: Teddy Hogeborn
- Date: 2009-11-19 18:31:28 UTC
- Revision ID: teddy@fukt.bsnet.se-20091119183128-ttstewh61xmtnil1
* Makefile (LINK_FORTIFY_LD): Bug fix: removed "-fPIE".
* mandos-keygen: Bug fix: Fix quoting for the "--password" option.
* mandos-keygen: Bug fix: Fix quoting for the "--password" option.
- files removed:
- DBUS-API
- debian/source
- 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 © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 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
64
55
import logging
65
56
import logging.handlers
66
57
import pwd
67
import contextlib
58
from contextlib import closing
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
75
import multiprocessing
76
import types
77
import binascii
78
import tempfile
79
import itertools
80
import collections
81
import codecs
82
62
83
63
import dbus
84
64
import dbus.service
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
65
import gobject
89
66
import avahi
90
67
from dbus.mainloop.glib import DBusGMainLoop
91
68
import ctypes
101
78
except ImportError:
102
79
SO_BINDTODEVICE = None
103
80
104
if sys.version_info.major == 2:
105
str = unicode
106
107
version = "1.6.9"
108
stored_state_file = "clients.pickle"
109
110
logger = logging.getLogger()
111
syslogger = None
112
113
try:
114
if_nametoindex = ctypes.cdll.LoadLibrary(
115
ctypes.util.find_library("c")).if_nametoindex
116
except (OSError, AttributeError):
117
118
def if_nametoindex(interface):
119
"Get an interface index the hard way, i.e. using fcntl()"
120
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
121
with contextlib.closing(socket.socket()) as s:
122
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
123
struct.pack(b"16s16x", interface))
124
interface_index = struct.unpack("I", ifreq[16:20])[0]
125
return interface_index
126
127
128
def initlogger(debug, level=logging.WARNING):
129
"""init logger and add loglevel"""
130
131
global syslogger
132
syslogger = (logging.handlers.SysLogHandler(
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
135
syslogger.setFormatter(logging.Formatter
136
('Mandos [%(process)d]: %(levelname)s:'
137
' %(message)s'))
138
logger.addHandler(syslogger)
139
140
if debug:
141
console = logging.StreamHandler()
142
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
143
' [%(process)d]:'
144
' %(levelname)s:'
145
' %(message)s'))
146
logger.addHandler(console)
147
logger.setLevel(level)
148
149
150
class PGPError(Exception):
151
"""Exception if encryption/decryption fails"""
152
pass
153
154
155
class PGPEngine(object):
156
"""A simple class for OpenPGP symmetric encryption & decryption"""
157
158
def __init__(self):
159
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
160
self.gnupgargs = ['--batch',
161
'--home', self.tempdir,
162
'--force-mdc',
163
'--quiet',
164
'--no-use-agent']
165
166
def __enter__(self):
167
return self
168
169
def __exit__(self, exc_type, exc_value, traceback):
170
self._cleanup()
171
return False
172
173
def __del__(self):
174
self._cleanup()
175
176
def _cleanup(self):
177
if self.tempdir is not None:
178
# Delete contents of tempdir
179
for root, dirs, files in os.walk(self.tempdir,
180
topdown = False):
181
for filename in files:
182
os.remove(os.path.join(root, filename))
183
for dirname in dirs:
184
os.rmdir(os.path.join(root, dirname))
185
# Remove tempdir
186
os.rmdir(self.tempdir)
187
self.tempdir = None
188
189
def password_encode(self, password):
190
# Passphrase can not be empty and can not contain newlines or
191
# NUL bytes. So we prefix it and hex encode it.
192
encoded = b"mandos" + binascii.hexlify(password)
193
if len(encoded) > 2048:
194
# GnuPG can't handle long passwords, so encode differently
195
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
196
.replace(b"\n", b"\\n")
197
.replace(b"\0", b"\\x00"))
198
return encoded
199
200
def encrypt(self, data, password):
201
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
204
passfile.write(passphrase)
205
passfile.flush()
206
proc = subprocess.Popen(['gpg', '--symmetric',
207
'--passphrase-file',
208
passfile.name]
209
+ self.gnupgargs,
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
214
if proc.returncode != 0:
215
raise PGPError(err)
216
return ciphertext
217
218
def decrypt(self, data, password):
219
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
222
passfile.write(passphrase)
223
passfile.flush()
224
proc = subprocess.Popen(['gpg', '--decrypt',
225
'--passphrase-file',
226
passfile.name]
227
+ self.gnupgargs,
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
232
if proc.returncode != 0:
233
raise PGPError(err)
234
return decrypted_plaintext
235
81
82
version = "1.0.14"
83
84
logger = logging.Logger(u'mandos')
85
syslogger = (logging.handlers.SysLogHandler
86
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
87
address = "/dev/log"))
88
syslogger.setFormatter(logging.Formatter
89
(u'Mandos [%(process)d]: %(levelname)s:'
90
u' %(message)s'))
91
logger.addHandler(syslogger)
92
93
console = logging.StreamHandler()
94
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
95
u' %(levelname)s:'
96
u' %(message)s'))
97
logger.addHandler(console)
236
98
237
99
class AvahiError(Exception):
238
100
def __init__(self, value, *args, **kwargs):
239
101
self.value = value
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
102
super(AvahiError, self).__init__(value, *args, **kwargs)
103
def __unicode__(self):
104
return unicode(repr(self.value))
243
105
244
106
class AvahiServiceError(AvahiError):
245
107
pass
246
108
247
248
109
class AvahiGroupError(AvahiError):
249
110
pass
250
111
255
116
Attributes:
256
117
interface: integer; avahi.IF_UNSPEC or an interface index.
257
118
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>
119
name: string; Example: u'Mandos'
120
type: string; Example: u'_mandos._tcp'.
121
See <http://www.dns-sd.org/ServiceTypes.html>
261
122
port: integer; what port to announce
262
123
TXT: list of strings; TXT record for the service
263
124
domain: string; Domain to publish on, default to .local if empty.
269
130
server: D-Bus Server
270
131
bus: dbus.SystemBus()
271
132
"""
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):
133
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
134
servicetype = None, port = None, TXT = None,
135
domain = u"", host = u"", max_renames = 32768,
136
protocol = avahi.PROTO_UNSPEC, bus = None):
284
137
self.interface = interface
285
138
self.name = name
286
139
self.type = servicetype
294
147
self.group = None # our entry group
295
148
self.server = None
296
149
self.bus = bus
297
self.entry_group_state_changed_match = None
298
299
def rename(self, remove=True):
150
def rename(self):
300
151
"""Derived from the Avahi example code"""
301
152
if self.rename_count >= self.max_renames:
302
logger.critical("No suitable Zeroconf service name found"
303
" after %i retries, exiting.",
153
logger.critical(u"No suitable Zeroconf service name found"
154
u" after %i retries, exiting.",
304
155
self.rename_count)
305
raise AvahiServiceError("Too many renames")
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
156
raise AvahiServiceError(u"Too many renames")
157
self.name = self.server.GetAlternativeServiceName(self.name)
158
logger.info(u"Changing Zeroconf service name to %r ...",
159
unicode(self.name))
160
syslogger.setFormatter(logging.Formatter
161
(u'Mandos (%s) [%%(process)d]:'
162
u' %%(levelname)s: %%(message)s'
163
% self.name))
164
self.remove()
165
self.add()
308
166
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
167
def remove(self):
326
168
"""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
169
if self.group is not None:
331
170
self.group.Reset()
332
333
171
def add(self):
334
172
"""Derived from the Avahi example code"""
335
self.remove()
336
173
if self.group is None:
337
174
self.group = dbus.Interface(
338
175
self.bus.get_object(avahi.DBUS_NAME,
339
176
self.server.EntryGroupNew()),
340
177
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' ...",
178
self.group.connect_to_signal('StateChanged',
179
self
180
.entry_group_state_changed)
181
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
345
182
self.name, self.type)
346
183
self.group.AddService(
347
184
self.interface,
352
189
dbus.UInt16(self.port),
353
190
avahi.string_array_to_txt_array(self.TXT))
354
191
self.group.Commit()
355
356
192
def entry_group_state_changed(self, state, error):
357
193
"""Derived from the Avahi example code"""
358
logger.debug("Avahi entry group state change: %i", state)
194
logger.debug(u"Avahi state change: %i", state)
359
195
360
196
if state == avahi.ENTRY_GROUP_ESTABLISHED:
361
logger.debug("Zeroconf service established.")
197
logger.debug(u"Zeroconf service established.")
362
198
elif state == avahi.ENTRY_GROUP_COLLISION:
363
logger.info("Zeroconf service name collision.")
199
logger.warning(u"Zeroconf service name collision.")
364
200
self.rename()
365
201
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
202
logger.critical(u"Avahi: Error in group state changed %s",
203
unicode(error))
204
raise AvahiGroupError(u"State changed: %s"
205
% unicode(error))
370
206
def cleanup(self):
371
207
"""Derived from the Avahi example code"""
372
208
if self.group is not None:
373
try:
374
self.group.Free()
375
except (dbus.exceptions.UnknownMethodException,
376
dbus.exceptions.DBusException):
377
pass
209
self.group.Free()
378
210
self.group = None
379
self.remove()
380
381
def server_state_changed(self, state, error=None):
211
def server_state_changed(self, state):
382
212
"""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()
213
if state == avahi.SERVER_COLLISION:
214
logger.error(u"Zeroconf server name collision")
215
self.remove()
397
216
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
217
self.add()
416
218
def activate(self):
417
219
"""Derived from the Avahi example code"""
418
220
if self.server is None:
419
221
self.server = dbus.Interface(
420
222
self.bus.get_object(avahi.DBUS_NAME,
421
avahi.DBUS_PATH_SERVER,
422
follow_name_owner_changes=True),
223
avahi.DBUS_PATH_SERVER),
423
224
avahi.DBUS_INTERFACE_SERVER)
424
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
225
self.server.connect_to_signal(u"StateChanged",
226
self.server_state_changed)
426
227
self.server_state_changed(self.server.GetState())
427
228
428
229
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
230
class Client(object):
449
231
"""A representation of a client host served by this server.
450
232
451
233
Attributes:
452
approved: bool(); 'None' if not yet approved/disapproved
453
approval_delay: datetime.timedelta(); Time to wait for approval
454
approval_duration: datetime.timedelta(); Duration of one approval
234
name: string; from the config file, used in log messages and
235
D-Bus identifiers
236
fingerprint: string (40 or 32 hexadecimal digits); used to
237
uniquely identify the client
238
secret: bytestring; sent verbatim (over TLS) to client
239
host: string; available for use by the checker command
240
created: datetime.datetime(); (UTC) object creation
241
last_enabled: datetime.datetime(); (UTC)
242
enabled: bool()
243
last_checked_ok: datetime.datetime(); (UTC) or None
244
timeout: datetime.timedelta(); How long from last_checked_ok
245
until this client is invalid
246
interval: datetime.timedelta(); How often to start a new checker
247
disable_hook: If set, called by disable() as disable_hook(self)
455
248
checker: subprocess.Popen(); a running checker process used
456
249
to see if the client lives.
457
250
'None' if no process is running.
458
checker_callback_tag: a gobject event source tag, or None
459
checker_command: string; External command which is run to check
460
if client lives. %() expansions are done at
251
checker_initiator_tag: a gobject event source tag, or None
252
disable_initiator_tag: - '' -
253
checker_callback_tag: - '' -
254
checker_command: string; External command which is run to check if
255
client lives. %() expansions are done at
461
256
runtime with vars(self) as dict, so that for
462
257
instance %(name)s can be used in the command.
463
checker_initiator_tag: a gobject event source tag, or None
464
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
258
current_checker_command: string; current running checker_command
468
disable_initiator_tag: a gobject event source tag, or None
469
enabled: bool()
470
fingerprint: string (40 or 32 hexadecimal digits); used to
471
uniquely identify the client
472
host: string; available for use by the checker command
473
interval: datetime.timedelta(); How often to start a new checker
474
last_approval_request: datetime.datetime(); (UTC) or None
475
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
482
name: string; from the config file, used in log messages and
483
D-Bus identifiers
484
secret: bytestring; sent verbatim (over TLS) to client
485
timeout: datetime.timedelta(); How long from last_checked_ok
486
until this client is disabled
487
extended_timeout: extra long timeout when secret has been sent
488
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
259
"""
493
260
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
}
510
511
261
@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):
262
def _timedelta_to_milliseconds(td):
263
"Convert a datetime.timedelta() to milliseconds"
264
return ((td.days * 24 * 60 * 60 * 1000)
265
+ (td.seconds * 1000)
266
+ (td.microseconds // 1000))
267
268
def timeout_milliseconds(self):
269
"Return the 'timeout' attribute in milliseconds"
270
return self._timedelta_to_milliseconds(self.timeout)
271
272
def interval_milliseconds(self):
273
"Return the 'interval' attribute in milliseconds"
274
return self._timedelta_to_milliseconds(self.interval)
275
276
def __init__(self, name = None, disable_hook=None, config=None):
277
"""Note: the 'checker' key in 'config' sets the
278
'checker_command' attribute and *not* the 'checker'
279
attribute."""
562
280
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)
281
if config is None:
282
config = {}
283
logger.debug(u"Creating client %r", self.name)
284
# Uppercase and remove spaces from fingerprint for later
285
# comparison purposes with return value from the fingerprint()
286
# function
287
self.fingerprint = (config[u"fingerprint"].upper()
288
.replace(u" ", u""))
289
logger.debug(u" Fingerprint: %s", self.fingerprint)
290
if u"secret" in config:
291
self.secret = config[u"secret"].decode(u"base64")
292
elif u"secfile" in config:
293
with closing(open(os.path.expanduser
294
(os.path.expandvars
295
(config[u"secfile"])),
296
"rb")) as secfile:
297
self.secret = secfile.read()
576
298
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
299
raise TypeError(u"No secret or secfile for client %s"
300
% self.name)
301
self.host = config.get(u"host", u"")
302
self.created = datetime.datetime.utcnow()
303
self.enabled = False
304
self.last_enabled = None
305
self.last_checked_ok = None
306
self.timeout = string_to_delta(config[u"timeout"])
307
self.interval = string_to_delta(config[u"interval"])
308
self.disable_hook = disable_hook
586
309
self.checker = None
587
310
self.checker_initiator_tag = None
588
311
self.disable_initiator_tag = None
589
312
self.checker_callback_tag = None
313
self.checker_command = config[u"checker"]
590
314
self.current_checker_command = None
591
self.approved = None
592
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)
604
605
# Send notice to process children that client state has changed
606
def send_changedstate(self):
607
with self.changedstate:
608
self.changedstate.notify_all()
315
self.last_connect = None
609
316
610
317
def enable(self):
611
318
"""Start this client's checker and timeout hooks"""
612
if getattr(self, "enabled", False):
319
if getattr(self, u"enabled", False):
613
320
# Already enabled
614
321
return
615
self.expires = datetime.datetime.utcnow() + self.timeout
616
self.enabled = True
617
322
self.last_enabled = datetime.datetime.utcnow()
618
self.init_checker()
619
self.send_changedstate()
323
# Schedule a new checker to be started an 'interval' from now,
324
# and every interval from then on.
325
self.checker_initiator_tag = (gobject.timeout_add
326
(self.interval_milliseconds(),
327
self.start_checker))
328
# Schedule a disable() when 'timeout' has passed
329
self.disable_initiator_tag = (gobject.timeout_add
330
(self.timeout_milliseconds(),
331
self.disable))
332
self.enabled = True
333
# Also start a new checker *right now*.
334
self.start_checker()
620
335
621
336
def disable(self, quiet=True):
622
337
"""Disable this client."""
623
338
if not getattr(self, "enabled", False):
624
339
return False
625
340
if not quiet:
626
logger.info("Disabling client %s", self.name)
627
if getattr(self, "disable_initiator_tag", None) is not None:
341
logger.info(u"Disabling client %s", self.name)
342
if getattr(self, u"disable_initiator_tag", False):
628
343
gobject.source_remove(self.disable_initiator_tag)
629
344
self.disable_initiator_tag = None
630
self.expires = None
631
if getattr(self, "checker_initiator_tag", None) is not None:
345
if getattr(self, u"checker_initiator_tag", False):
632
346
gobject.source_remove(self.checker_initiator_tag)
633
347
self.checker_initiator_tag = None
634
348
self.stop_checker()
349
if self.disable_hook:
350
self.disable_hook(self)
635
351
self.enabled = False
636
if not quiet:
637
self.send_changedstate()
638
352
# Do not run this again if called by a gobject.timeout_add
639
353
return False
640
354
641
355
def __del__(self):
356
self.disable_hook = None
642
357
self.disable()
643
358
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):
359
def checker_callback(self, pid, condition, command):
662
360
"""The checker has completed, so take appropriate actions."""
663
361
self.checker_callback_tag = None
664
362
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",
363
if os.WIFEXITED(condition):
364
exitstatus = os.WEXITSTATUS(condition)
365
if exitstatus == 0:
366
logger.info(u"Checker for %(name)s succeeded",
674
367
vars(self))
675
368
self.checked_ok()
676
369
else:
677
logger.info("Checker for %(name)s failed", vars(self))
370
logger.info(u"Checker for %(name)s failed",
371
vars(self))
678
372
else:
679
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
logger.warning("Checker for %(name)s crashed?",
373
logger.warning(u"Checker for %(name)s crashed?",
682
374
vars(self))
683
return False
684
375
685
376
def checked_ok(self):
686
"""Assert that the client has been seen, alive and well."""
377
"""Bump up the timeout for this client.
378
379
This should only be called when the client has been seen,
380
alive and well.
381
"""
687
382
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
703
704
def need_approval(self):
705
self.last_approval_request = datetime.datetime.utcnow()
383
gobject.source_remove(self.disable_initiator_tag)
384
self.disable_initiator_tag = (gobject.timeout_add
385
(self.timeout_milliseconds(),
386
self.disable))
706
387
707
388
def start_checker(self):
708
389
"""Start a new checker subprocess if one is not running.
710
391
If a checker already exists, leave it running and do
711
392
nothing."""
712
393
# 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
394
# did that, then if a checker (for some reason) started
395
# running slowly and taking more than 'interval' time, the
396
# client would inevitably timeout, since no checker would get
397
# a chance to run to completion. If we instead leave running
717
398
# checkers alone, the checker would have to take more time
718
# than 'timeout' for the client to be disabled, which is as it
719
# should be.
399
# than 'timeout' for the client to be declared invalid, which
400
# is as it should be.
720
401
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
402
# If a checker exists, make sure it is not a zombie
403
try:
404
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
405
except (AttributeError, OSError), error:
406
if (isinstance(error, OSError)
407
and error.errno != errno.ECHILD):
408
raise error
409
else:
410
if pid:
411
logger.warning(u"Checker was a zombie")
412
gobject.source_remove(self.checker_callback_tag)
413
self.checker_callback(pid, status,
414
self.current_checker_command)
725
415
# Start a new checker if needed
726
416
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
417
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
418
# In case checker_command has exactly one % operator
419
command = self.checker_command % self.host
420
except TypeError:
421
# Escape attributes for the shell
422
escaped_attrs = dict((key,
423
re.escape(unicode(str(val),
424
errors=
425
u'replace')))
426
for key, val in
427
vars(self).iteritems())
428
try:
429
command = self.checker_command % escaped_attrs
430
except TypeError, error:
431
logger.error(u'Could not format string "%s":'
432
u' %s', self.checker_command, error)
433
return True # Try again later
738
434
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)
435
try:
436
logger.info(u"Starting checker %r for %s",
437
command, self.name)
438
# We don't need to redirect stdout and stderr, since
439
# in normal mode, that is already done by daemon(),
440
# and in debug mode we don't want to. (Stdin is
441
# always replaced by /dev/null.)
442
self.checker = subprocess.Popen(command,
443
close_fds=True,
444
shell=True, cwd=u"/")
445
self.checker_callback_tag = (gobject.child_watch_add
446
(self.checker.pid,
447
self.checker_callback,
448
data=command))
449
# The checker may have completed before the gobject
450
# watch was added. Check for this.
451
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
452
if pid:
453
gobject.source_remove(self.checker_callback_tag)
454
self.checker_callback(pid, status, command)
455
except OSError, error:
456
logger.error(u"Failed to start subprocess: %s",
457
error)
764
458
# Re-run this periodically if run by gobject.timeout_add
765
459
return True
766
460
769
463
if self.checker_callback_tag:
770
464
gobject.source_remove(self.checker_callback_tag)
771
465
self.checker_callback_tag = None
772
if getattr(self, "checker", None) is None:
466
if getattr(self, u"checker", None) is None:
773
467
return
774
logger.debug("Stopping checker for %(name)s", vars(self))
775
self.checker.terminate()
468
logger.debug(u"Stopping checker for %(name)s", vars(self))
469
try:
470
os.kill(self.checker.pid, signal.SIGTERM)
471
#time.sleep(0.5)
472
#if self.checker.poll() is None:
473
# os.kill(self.checker.pid, signal.SIGKILL)
474
except OSError, error:
475
if error.errno != errno.ESRCH: # No such process
476
raise
776
477
self.checker = None
777
778
779
def dbus_service_property(dbus_interface,
780
signature="v",
781
access="readwrite",
782
byte_arrays=False):
478
479
def still_valid(self):
480
"""Has the timeout not yet passed for this client?"""
481
if not getattr(self, u"enabled", False):
482
return False
483
now = datetime.datetime.utcnow()
484
if self.last_checked_ok is None:
485
return now < (self.created + self.timeout)
486
else:
487
return now < (self.last_checked_ok + self.timeout)
488
489
490
def dbus_service_property(dbus_interface, signature=u"v",
491
access=u"readwrite", byte_arrays=False):
783
492
"""Decorators for marking methods of a DBusObjectWithProperties to
784
493
become properties on the D-Bus.
785
494
790
499
dbus.service.method, except there is only "signature", since the
791
500
type from Get() and the type sent to Set() is the same.
792
501
"""
793
# Encoding deeply encoded byte arrays is not supported yet by the
794
# "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
799
502
def decorator(func):
800
503
func._dbus_is_property = True
801
504
func._dbus_interface = dbus_interface
802
505
func._dbus_signature = signature
803
506
func._dbus_access = access
804
507
func._dbus_name = func.__name__
805
if func._dbus_name.endswith("_dbus_property"):
508
if func._dbus_name.endswith(u"_dbus_property"):
806
509
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
510
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
511
return func
853
512
return decorator
854
513
855
514
856
515
class DBusPropertyException(dbus.exceptions.DBusException):
857
516
"""A base class for D-Bus property-related exceptions
858
517
"""
859
pass
518
def __unicode__(self):
519
return unicode(str(self))
860
520
861
521
862
522
class DBusPropertyAccessException(DBusPropertyException):
871
531
pass
872
532
873
533
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):
534
class DBusObjectWithProperties(dbus.service.Object):
964
535
"""A D-Bus object with properties.
965
536
966
537
Classes inheriting from this can use the dbus_service_property
967
538
decorator to expose methods as D-Bus properties. It exposes the
968
539
standard Get(), Set(), and GetAll() methods on the D-Bus.
969
540
"""
970
541
542
@staticmethod
543
def _is_dbus_property(obj):
544
return getattr(obj, u"_dbus_is_property", False)
545
546
def _get_all_dbus_properties(self):
547
"""Returns a generator of (name, attribute) pairs
548
"""
549
return ((prop._dbus_name, prop)
550
for name, prop in
551
inspect.getmembers(self, self._is_dbus_property))
552
971
553
def _get_dbus_property(self, interface_name, property_name):
972
554
"""Returns a bound method if one exists which is a D-Bus
973
555
property with the specified name and interface.
974
556
"""
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
557
for name in (property_name,
558
property_name + u"_dbus_property"):
559
prop = getattr(self, name, None)
560
if (prop is None
561
or not self._is_dbus_property(prop)
562
or prop._dbus_name != property_name
563
or (interface_name and prop._dbus_interface
564
and interface_name != prop._dbus_interface)):
565
continue
566
return prop
982
567
# 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")
568
raise DBusPropertyNotFound(self.dbus_object_path + u":"
569
+ interface_name + u"."
570
+ property_name)
571
572
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
573
out_signature=u"v")
998
574
def Get(self, interface_name, property_name):
999
575
"""Standard D-Bus property Get() method, see D-Bus standard.
1000
576
"""
1001
577
prop = self._get_dbus_property(interface_name, property_name)
1002
if prop._dbus_access == "write":
578
if prop._dbus_access == u"write":
1003
579
raise DBusPropertyAccessException(property_name)
1004
580
value = prop()
1005
if not hasattr(value, "variant_level"):
581
if not hasattr(value, u"variant_level"):
1006
582
return value
1007
583
return type(value)(value, variant_level=value.variant_level+1)
1008
584
1009
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
585
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1010
586
def Set(self, interface_name, property_name, value):
1011
587
"""Standard D-Bus property Set() method, see D-Bus standard.
1012
588
"""
1013
589
prop = self._get_dbus_property(interface_name, property_name)
1014
if prop._dbus_access == "read":
590
if prop._dbus_access == u"read":
1015
591
raise DBusPropertyAccessException(property_name)
1016
if prop._dbus_get_args_options["byte_arrays"]:
1017
# The byte_arrays option is not supported yet on
1018
# 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))
592
if prop._dbus_get_args_options[u"byte_arrays"]:
593
value = dbus.ByteArray(''.join(unichr(byte)
594
for byte in value))
1025
595
prop(value)
1026
596
1027
@dbus.service.method(dbus.PROPERTIES_IFACE,
1028
in_signature="s",
1029
out_signature="a{sv}")
597
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
598
out_signature=u"a{sv}")
1030
599
def GetAll(self, interface_name):
1031
600
"""Standard D-Bus property GetAll() method, see D-Bus
1032
601
standard.
1033
602
1034
603
Note: Will not include properties with access="write".
1035
604
"""
1036
properties = {}
1037
for name, prop in self._get_all_dbus_things("property"):
605
all = {}
606
for name, prop in self._get_all_dbus_properties():
1038
607
if (interface_name
1039
608
and interface_name != prop._dbus_interface):
1040
609
# Interface non-empty but did not match
1041
610
continue
1042
611
# Ignore write-only properties
1043
if prop._dbus_access == "write":
612
if prop._dbus_access == u"write":
1044
613
continue
1045
614
value = prop()
1046
if not hasattr(value, "variant_level"):
1047
properties[name] = value
615
if not hasattr(value, u"variant_level"):
616
all[name] = value
1048
617
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
618
all[name] = type(value)(value, variant_level=
619
value.variant_level+1)
620
return dbus.Dictionary(all, signature=u"sv")
1060
621
1061
622
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1062
out_signature="s",
623
out_signature=u"s",
1063
624
path_keyword='object_path',
1064
625
connection_keyword='connection')
1065
626
def Introspect(self, object_path, connection):
1066
"""Overloading of standard D-Bus method.
1067
1068
Inserts property tags and interface annotation tags.
627
"""Standard D-Bus method, overloaded to insert property tags.
1069
628
"""
1070
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1071
object_path,
1072
connection)
629
xmlstring = dbus.service.Object.Introspect(self, object_path,
630
connection)
1073
631
try:
1074
632
document = xml.dom.minidom.parseString(xmlstring)
1075
1076
633
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)
634
e = document.createElement(u"property")
635
e.setAttribute(u"name", name)
636
e.setAttribute(u"type", prop._dbus_signature)
637
e.setAttribute(u"access", prop._dbus_access)
1081
638
return e
1082
1083
for if_tag in document.getElementsByTagName("interface"):
1084
# Add property tags
639
for if_tag in document.getElementsByTagName(u"interface"):
1085
640
for tag in (make_tag(document, name, prop)
1086
641
for name, prop
1087
in self._get_all_dbus_things("property")
642
in self._get_all_dbus_properties()
1088
643
if prop._dbus_interface
1089
== if_tag.getAttribute("name")):
644
== if_tag.getAttribute(u"name")):
1090
645
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
646
# Add the names to the return values for the
1108
647
# "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,
1158
signature = "oas")
1159
def InterfacesRemoved(self, object_path, interfaces):
1160
pass
1161
1162
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1163
out_signature = "s",
1164
path_keyword = 'object_path',
1165
connection_keyword = 'connection')
1166
def Introspect(self, object_path, connection):
1167
"""Overloading of standard D-Bus method.
1168
1169
Override return argument name of GetManagedObjects to be
1170
"objpath_interfaces_and_properties"
1171
"""
1172
xmlstring = DBusObjectWithAnnotations(self, 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
def call_both(*args, **kwargs):
1295
"""This function will emit two D-Bus
1296
signals by calling func1 and func2"""
1297
func1(*args, **kwargs)
1298
func2(*args, **kwargs)
1299
1300
return call_both
1301
# Create the "call_both" function and add it to
1302
# the class
1303
attr[attrname] = fixscope(attribute, new_function)
1304
# Is this a D-Bus method?
1305
elif getattr(attribute, "_dbus_is_method", False):
1306
# Create a new, but exactly alike, function
1307
# object. Decorate it to be a new D-Bus method
1308
# with the alternate D-Bus interface name. Add it
1309
# to the class.
1310
attr[attrname] = (
1311
dbus.service.method(
1312
alt_interface,
1313
attribute._dbus_in_signature,
1314
attribute._dbus_out_signature)
1315
(types.FunctionType(attribute.func_code,
1316
attribute.func_globals,
1317
attribute.func_name,
1318
attribute.func_defaults,
1319
attribute.func_closure)))
1320
# Copy annotations, if any
1321
try:
1322
attr[attrname]._dbus_annotations = dict(
1323
attribute._dbus_annotations)
1324
except AttributeError:
1325
pass
1326
# Is this a D-Bus property?
1327
elif getattr(attribute, "_dbus_is_property", False):
1328
# Create a new, but exactly alike, function
1329
# object, and decorate it to be a new D-Bus
1330
# property with the alternate D-Bus interface
1331
# name. Add it to the class.
1332
attr[attrname] = (dbus_service_property(
1333
alt_interface, attribute._dbus_signature,
1334
attribute._dbus_access,
1335
attribute._dbus_get_args_options
1336
["byte_arrays"])
1337
(types.FunctionType(
1338
attribute.func_code,
1339
attribute.func_globals,
1340
attribute.func_name,
1341
attribute.func_defaults,
1342
attribute.func_closure)))
1343
# Copy annotations, if any
1344
try:
1345
attr[attrname]._dbus_annotations = dict(
1346
attribute._dbus_annotations)
1347
except AttributeError:
1348
pass
1349
# Is this a D-Bus interface?
1350
elif getattr(attribute, "_dbus_is_interface", False):
1351
# Create a new, but exactly alike, function
1352
# object. Decorate it to be a new D-Bus interface
1353
# with the alternate D-Bus interface name. Add it
1354
# to the class.
1355
attr[attrname] = (
1356
dbus_interface_annotations(alt_interface)
1357
(types.FunctionType(attribute.func_code,
1358
attribute.func_globals,
1359
attribute.func_name,
1360
attribute.func_defaults,
1361
attribute.func_closure)))
1362
if deprecate:
1363
# Deprecate all alternate interfaces
1364
iname="_AlternateDBusNames_interface_annotation{}"
1365
for interface_name in interface_names:
1366
1367
@dbus_interface_annotations(interface_name)
1368
def func(self):
1369
return { "org.freedesktop.DBus.Deprecated":
1370
"true" }
1371
# Find an unused name
1372
for aname in (iname.format(i)
1373
for i in itertools.count()):
1374
if aname not in attr:
1375
attr[aname] = func
1376
break
1377
if interface_names:
1378
# Replace the class with a new subclass of it with
1379
# methods, signals, etc. as created above.
1380
cls = type(b"{}Alternate".format(cls.__name__),
1381
(cls, ), attr)
1382
return cls
1383
1384
return wrapper
1385
1386
1387
@alternate_dbus_interfaces({"se.recompile.Mandos":
1388
"se.bsnet.fukt.Mandos"})
648
if (if_tag.getAttribute(u"name")
649
== u"org.freedesktop.DBus.Properties"):
650
for cn in if_tag.getElementsByTagName(u"method"):
651
if cn.getAttribute(u"name") == u"Get":
652
for arg in cn.getElementsByTagName(u"arg"):
653
if (arg.getAttribute(u"direction")
654
== u"out"):
655
arg.setAttribute(u"name", u"value")
656
elif cn.getAttribute(u"name") == u"GetAll":
657
for arg in cn.getElementsByTagName(u"arg"):
658
if (arg.getAttribute(u"direction")
659
== u"out"):
660
arg.setAttribute(u"name", u"props")
661
xmlstring = document.toxml(u"utf-8")
662
document.unlink()
663
except (AttributeError, xml.dom.DOMException,
664
xml.parsers.expat.ExpatError), error:
665
logger.error(u"Failed to override Introspection method",
666
error)
667
return xmlstring
668
669
1389
670
class ClientDBus(Client, DBusObjectWithProperties):
1390
671
"""A Client class using D-Bus
1391
672
1393
674
dbus_object_path: dbus.ObjectPath
1394
675
bus: dbus.SystemBus()
1395
676
"""
1396
1397
runtime_expansions = (Client.runtime_expansions
1398
+ ("dbus_object_path", ))
1399
1400
_interface = "se.recompile.Mandos.Client"
1401
1402
677
# dbus.service.Object doesn't use super(), so we can't either.
1403
678
1404
679
def __init__(self, bus = None, *args, **kwargs):
1406
681
Client.__init__(self, *args, **kwargs)
1407
682
# Only now, when this client is initialized, can it show up on
1408
683
# the D-Bus
1409
client_object_name = str(self.name).translate(
1410
{ord("."): ord("_"),
1411
ord("-"): ord("_")})
1412
self.dbus_object_path = dbus.ObjectPath(
1413
"/clients/" + client_object_name)
684
self.dbus_object_path = (dbus.ObjectPath
685
(u"/clients/"
686
+ self.name.replace(u".", u"_")))
1414
687
DBusObjectWithProperties.__init__(self, self.bus,
1415
688
self.dbus_object_path)
1416
689
1417
def notifychangeproperty(transform_func, dbus_name,
1418
type_func=lambda x: x,
1419
variant_level=1,
1420
invalidate_only=False,
1421
_interface=_interface):
1422
""" Modify a variable so that it's a property which announces
1423
its changes to DBus.
1424
1425
transform_fun: Function that takes a value and a variant_level
1426
and transforms it to a D-Bus type.
1427
dbus_name: D-Bus name of the variable
1428
type_func: Function that transform the value before sending it
1429
to the D-Bus. Default: no transform
1430
variant_level: D-Bus variant level. Default: 1
1431
"""
1432
attrname = "_{}".format(dbus_name)
1433
1434
def setter(self, value):
1435
if hasattr(self, "dbus_object_path"):
1436
if (not hasattr(self, attrname) or
1437
type_func(getattr(self, attrname, None))
1438
!= type_func(value)):
1439
if invalidate_only:
1440
self.PropertiesChanged(
1441
_interface, dbus.Dictionary(),
1442
dbus.Array((dbus_name, )))
1443
else:
1444
dbus_value = transform_func(
1445
type_func(value),
1446
variant_level = variant_level)
1447
self.PropertyChanged(dbus.String(dbus_name),
1448
dbus_value)
1449
self.PropertiesChanged(
1450
_interface,
1451
dbus.Dictionary({ dbus.String(dbus_name):
1452
dbus_value }),
1453
dbus.Array())
1454
setattr(self, attrname, value)
1455
1456
return property(lambda self: getattr(self, attrname), setter)
1457
1458
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1459
approvals_pending = notifychangeproperty(dbus.Boolean,
1460
"ApprovalPending",
1461
type_func = bool)
1462
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1463
last_enabled = notifychangeproperty(datetime_to_dbus,
1464
"LastEnabled")
1465
checker = notifychangeproperty(
1466
dbus.Boolean, "CheckerRunning",
1467
type_func = lambda checker: checker is not None)
1468
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1469
"LastCheckedOK")
1470
last_checker_status = notifychangeproperty(dbus.Int16,
1471
"LastCheckerStatus")
1472
last_approval_request = notifychangeproperty(
1473
datetime_to_dbus, "LastApprovalRequest")
1474
approved_by_default = notifychangeproperty(dbus.Boolean,
1475
"ApprovedByDefault")
1476
approval_delay = notifychangeproperty(
1477
dbus.UInt64, "ApprovalDelay",
1478
type_func = lambda td: td.total_seconds() * 1000)
1479
approval_duration = notifychangeproperty(
1480
dbus.UInt64, "ApprovalDuration",
1481
type_func = lambda td: td.total_seconds() * 1000)
1482
host = notifychangeproperty(dbus.String, "Host")
1483
timeout = notifychangeproperty(
1484
dbus.UInt64, "Timeout",
1485
type_func = lambda td: td.total_seconds() * 1000)
1486
extended_timeout = notifychangeproperty(
1487
dbus.UInt64, "ExtendedTimeout",
1488
type_func = lambda td: td.total_seconds() * 1000)
1489
interval = notifychangeproperty(
1490
dbus.UInt64, "Interval",
1491
type_func = lambda td: td.total_seconds() * 1000)
1492
checker_command = notifychangeproperty(dbus.String, "Checker")
1493
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1494
invalidate_only=True)
1495
1496
del notifychangeproperty
690
@staticmethod
691
def _datetime_to_dbus(dt, variant_level=0):
692
"""Convert a UTC datetime.datetime() to a D-Bus type."""
693
return dbus.String(dt.isoformat(),
694
variant_level=variant_level)
695
696
def enable(self):
697
oldstate = getattr(self, u"enabled", False)
698
r = Client.enable(self)
699
if oldstate != self.enabled:
700
# Emit D-Bus signals
701
self.PropertyChanged(dbus.String(u"enabled"),
702
dbus.Boolean(True, variant_level=1))
703
self.PropertyChanged(
704
dbus.String(u"last_enabled"),
705
self._datetime_to_dbus(self.last_enabled,
706
variant_level=1))
707
return r
708
709
def disable(self, quiet = False):
710
oldstate = getattr(self, u"enabled", False)
711
r = Client.disable(self, quiet=quiet)
712
if not quiet and oldstate != self.enabled:
713
# Emit D-Bus signal
714
self.PropertyChanged(dbus.String(u"enabled"),
715
dbus.Boolean(False, variant_level=1))
716
return r
1497
717
1498
718
def __del__(self, *args, **kwargs):
1499
719
try:
1500
720
self.remove_from_connection()
1501
721
except LookupError:
1502
722
pass
1503
if hasattr(DBusObjectWithProperties, "__del__"):
723
if hasattr(DBusObjectWithProperties, u"__del__"):
1504
724
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1505
725
Client.__del__(self, *args, **kwargs)
1506
726
1507
def checker_callback(self, source, condition,
1508
connection, command, *args, **kwargs):
1509
ret = Client.checker_callback(self, source, condition,
1510
connection, command, *args,
1511
**kwargs)
1512
exitstatus = self.last_checker_status
1513
if exitstatus >= 0:
727
def checker_callback(self, pid, condition, command,
728
*args, **kwargs):
729
self.checker_callback_tag = None
730
self.checker = None
731
# Emit D-Bus signal
732
self.PropertyChanged(dbus.String(u"checker_running"),
733
dbus.Boolean(False, variant_level=1))
734
if os.WIFEXITED(condition):
735
exitstatus = os.WEXITSTATUS(condition)
1514
736
# Emit D-Bus signal
1515
737
self.CheckerCompleted(dbus.Int16(exitstatus),
1516
# This is specific to GNU libC
1517
dbus.Int64(exitstatus << 8),
738
dbus.Int64(condition),
1518
739
dbus.String(command))
1519
740
else:
1520
741
# Emit D-Bus signal
1521
742
self.CheckerCompleted(dbus.Int16(-1),
1522
dbus.Int64(
1523
# This is specific to GNU libC
1524
(exitstatus << 8)
1525
| self.last_checker_signal),
743
dbus.Int64(condition),
1526
744
dbus.String(command))
1527
return ret
745
746
return Client.checker_callback(self, pid, condition, command,
747
*args, **kwargs)
748
749
def checked_ok(self, *args, **kwargs):
750
r = Client.checked_ok(self, *args, **kwargs)
751
# Emit D-Bus signal
752
self.PropertyChanged(
753
dbus.String(u"last_checked_ok"),
754
(self._datetime_to_dbus(self.last_checked_ok,
755
variant_level=1)))
756
return r
1528
757
1529
758
def start_checker(self, *args, **kwargs):
1530
old_checker_pid = getattr(self.checker, "pid", None)
759
old_checker = self.checker
760
if self.checker is not None:
761
old_checker_pid = self.checker.pid
762
else:
763
old_checker_pid = None
1531
764
r = Client.start_checker(self, *args, **kwargs)
1532
765
# Only if new checker process was started
1533
766
if (self.checker is not None
1534
767
and old_checker_pid != self.checker.pid):
1535
768
# Emit D-Bus signal
1536
769
self.CheckerStarted(self.current_checker_command)
1537
return r
1538
1539
def _reset_approved(self):
1540
self.approved = None
1541
return False
1542
1543
def approve(self, value=True):
1544
self.approved = value
1545
gobject.timeout_add(int(self.approval_duration.total_seconds()
1546
* 1000), self._reset_approved)
1547
self.send_changedstate()
1548
1549
## D-Bus methods, signals & properties
1550
1551
## Interfaces
1552
1553
## Signals
770
self.PropertyChanged(
771
dbus.String(u"checker_running"),
772
dbus.Boolean(True, variant_level=1))
773
return r
774
775
def stop_checker(self, *args, **kwargs):
776
old_checker = getattr(self, u"checker", None)
777
r = Client.stop_checker(self, *args, **kwargs)
778
if (old_checker is not None
779
and getattr(self, u"checker", None) is None):
780
self.PropertyChanged(dbus.String(u"checker_running"),
781
dbus.Boolean(False, variant_level=1))
782
return r
783
784
## D-Bus methods & signals
785
_interface = u"se.bsnet.fukt.Mandos.Client"
786
787
# CheckedOK - method
788
@dbus.service.method(_interface)
789
def CheckedOK(self):
790
return self.checked_ok()
1554
791
1555
792
# CheckerCompleted - signal
1556
@dbus.service.signal(_interface, signature="nxs")
793
@dbus.service.signal(_interface, signature=u"nxs")
1557
794
def CheckerCompleted(self, exitcode, waitstatus, command):
1558
795
"D-Bus signal"
1559
796
pass
1560
797
1561
798
# CheckerStarted - signal
1562
@dbus.service.signal(_interface, signature="s")
799
@dbus.service.signal(_interface, signature=u"s")
1563
800
def CheckerStarted(self, command):
1564
801
"D-Bus signal"
1565
802
pass
1566
803
1567
804
# PropertyChanged - signal
1568
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1569
@dbus.service.signal(_interface, signature="sv")
805
@dbus.service.signal(_interface, signature=u"sv")
1570
806
def PropertyChanged(self, property, value):
1571
807
"D-Bus signal"
1572
808
pass
1574
810
# GotSecret - signal
1575
811
@dbus.service.signal(_interface)
1576
812
def GotSecret(self):
1577
"""D-Bus signal
1578
Is sent after a successful transfer of secret from the Mandos
1579
server to mandos-client
1580
"""
813
"D-Bus signal"
1581
814
pass
1582
815
1583
816
# Rejected - signal
1584
@dbus.service.signal(_interface, signature="s")
1585
def Rejected(self, reason):
817
@dbus.service.signal(_interface)
818
def Rejected(self):
1586
819
"D-Bus signal"
1587
820
pass
1588
821
1589
# NeedApproval - signal
1590
@dbus.service.signal(_interface, signature="tb")
1591
def NeedApproval(self, timeout, default):
1592
"D-Bus signal"
1593
return self.need_approval()
1594
1595
## Methods
1596
1597
# Approve - method
1598
@dbus.service.method(_interface, in_signature="b")
1599
def Approve(self, value):
1600
self.approve(value)
1601
1602
# CheckedOK - method
1603
@dbus.service.method(_interface)
1604
def CheckedOK(self):
1605
self.checked_ok()
1606
1607
822
# Enable - method
1608
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1609
823
@dbus.service.method(_interface)
1610
824
def Enable(self):
1611
825
"D-Bus method"
1612
826
self.enable()
1613
827
1614
828
# StartChecker - method
1615
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1616
829
@dbus.service.method(_interface)
1617
830
def StartChecker(self):
1618
831
"D-Bus method"
1619
832
self.start_checker()
1620
833
1621
834
# Disable - method
1622
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1623
835
@dbus.service.method(_interface)
1624
836
def Disable(self):
1625
837
"D-Bus method"
1626
838
self.disable()
1627
839
1628
840
# StopChecker - method
1629
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1630
841
@dbus.service.method(_interface)
1631
842
def StopChecker(self):
1632
843
self.stop_checker()
1633
844
1634
## Properties
1635
1636
# ApprovalPending - property
1637
@dbus_service_property(_interface, signature="b", access="read")
1638
def ApprovalPending_dbus_property(self):
1639
return dbus.Boolean(bool(self.approvals_pending))
1640
1641
# ApprovedByDefault - property
1642
@dbus_service_property(_interface,
1643
signature="b",
1644
access="readwrite")
1645
def ApprovedByDefault_dbus_property(self, value=None):
1646
if value is None: # get
1647
return dbus.Boolean(self.approved_by_default)
1648
self.approved_by_default = bool(value)
1649
1650
# ApprovalDelay - property
1651
@dbus_service_property(_interface,
1652
signature="t",
1653
access="readwrite")
1654
def ApprovalDelay_dbus_property(self, value=None):
1655
if value is None: # get
1656
return dbus.UInt64(self.approval_delay.total_seconds()
1657
* 1000)
1658
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1659
1660
# ApprovalDuration - property
1661
@dbus_service_property(_interface,
1662
signature="t",
1663
access="readwrite")
1664
def ApprovalDuration_dbus_property(self, value=None):
1665
if value is None: # get
1666
return dbus.UInt64(self.approval_duration.total_seconds()
1667
* 1000)
1668
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1669
1670
# Name - property
1671
@dbus_annotations(
1672
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1673
@dbus_service_property(_interface, signature="s", access="read")
1674
def Name_dbus_property(self):
845
# name - property
846
@dbus_service_property(_interface, signature=u"s", access=u"read")
847
def name_dbus_property(self):
1675
848
return dbus.String(self.name)
1676
849
1677
# Fingerprint - property
1678
@dbus_annotations(
1679
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1680
@dbus_service_property(_interface, signature="s", access="read")
1681
def Fingerprint_dbus_property(self):
850
# fingerprint - property
851
@dbus_service_property(_interface, signature=u"s", access=u"read")
852
def fingerprint_dbus_property(self):
1682
853
return dbus.String(self.fingerprint)
1683
854
1684
# Host - property
1685
@dbus_service_property(_interface,
1686
signature="s",
1687
access="readwrite")
1688
def Host_dbus_property(self, value=None):
855
# host - property
856
@dbus_service_property(_interface, signature=u"s",
857
access=u"readwrite")
858
def host_dbus_property(self, value=None):
1689
859
if value is None: # get
1690
860
return dbus.String(self.host)
1691
self.host = str(value)
1692
1693
# Created - property
1694
@dbus_annotations(
1695
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1696
@dbus_service_property(_interface, signature="s", access="read")
1697
def Created_dbus_property(self):
1698
return datetime_to_dbus(self.created)
1699
1700
# LastEnabled - property
1701
@dbus_service_property(_interface, signature="s", access="read")
1702
def LastEnabled_dbus_property(self):
1703
return datetime_to_dbus(self.last_enabled)
1704
1705
# Enabled - property
1706
@dbus_service_property(_interface,
1707
signature="b",
1708
access="readwrite")
1709
def Enabled_dbus_property(self, value=None):
861
self.host = value
862
# Emit D-Bus signal
863
self.PropertyChanged(dbus.String(u"host"),
864
dbus.String(value, variant_level=1))
865
866
# created - property
867
@dbus_service_property(_interface, signature=u"s", access=u"read")
868
def created_dbus_property(self):
869
return dbus.String(self._datetime_to_dbus(self.created))
870
871
# last_enabled - property
872
@dbus_service_property(_interface, signature=u"s", access=u"read")
873
def last_enabled_dbus_property(self):
874
if self.last_enabled is None:
875
return dbus.String(u"")
876
return dbus.String(self._datetime_to_dbus(self.last_enabled))
877
878
# enabled - property
879
@dbus_service_property(_interface, signature=u"b",
880
access=u"readwrite")
881
def enabled_dbus_property(self, value=None):
1710
882
if value is None: # get
1711
883
return dbus.Boolean(self.enabled)
1712
884
if value:
1714
886
else:
1715
887
self.disable()
1716
888
1717
# LastCheckedOK - property
1718
@dbus_service_property(_interface,
1719
signature="s",
1720
access="readwrite")
1721
def LastCheckedOK_dbus_property(self, value=None):
889
# last_checked_ok - property
890
@dbus_service_property(_interface, signature=u"s",
891
access=u"readwrite")
892
def last_checked_ok_dbus_property(self, value=None):
1722
893
if value is not None:
1723
894
self.checked_ok()
1724
895
return
1725
return datetime_to_dbus(self.last_checked_ok)
1726
1727
# LastCheckerStatus - property
1728
@dbus_service_property(_interface, signature="n", access="read")
1729
def LastCheckerStatus_dbus_property(self):
1730
return dbus.Int16(self.last_checker_status)
1731
1732
# Expires - property
1733
@dbus_service_property(_interface, signature="s", access="read")
1734
def Expires_dbus_property(self):
1735
return datetime_to_dbus(self.expires)
1736
1737
# LastApprovalRequest - property
1738
@dbus_service_property(_interface, signature="s", access="read")
1739
def LastApprovalRequest_dbus_property(self):
1740
return datetime_to_dbus(self.last_approval_request)
1741
1742
# Timeout - property
1743
@dbus_service_property(_interface,
1744
signature="t",
1745
access="readwrite")
1746
def Timeout_dbus_property(self, value=None):
896
if self.last_checked_ok is None:
897
return dbus.String(u"")
898
return dbus.String(self._datetime_to_dbus(self
899
.last_checked_ok))
900
901
# timeout - property
902
@dbus_service_property(_interface, signature=u"t",
903
access=u"readwrite")
904
def timeout_dbus_property(self, value=None):
1747
905
if value is None: # get
1748
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1749
old_timeout = self.timeout
906
return dbus.UInt64(self.timeout_milliseconds())
1750
907
self.timeout = datetime.timedelta(0, 0, 0, value)
1751
# Reschedule disabling
1752
if self.enabled:
1753
now = datetime.datetime.utcnow()
1754
self.expires += self.timeout - old_timeout
1755
if self.expires <= now:
1756
# The timeout has passed
1757
self.disable()
1758
else:
1759
if (getattr(self, "disable_initiator_tag", None)
1760
is None):
1761
return
1762
gobject.source_remove(self.disable_initiator_tag)
1763
self.disable_initiator_tag = gobject.timeout_add(
1764
int((self.expires - now).total_seconds() * 1000),
1765
self.disable)
1766
1767
# ExtendedTimeout - property
1768
@dbus_service_property(_interface,
1769
signature="t",
1770
access="readwrite")
1771
def ExtendedTimeout_dbus_property(self, value=None):
1772
if value is None: # get
1773
return dbus.UInt64(self.extended_timeout.total_seconds()
1774
* 1000)
1775
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1776
1777
# Interval - property
1778
@dbus_service_property(_interface,
1779
signature="t",
1780
access="readwrite")
1781
def Interval_dbus_property(self, value=None):
1782
if value is None: # get
1783
return dbus.UInt64(self.interval.total_seconds() * 1000)
908
# Emit D-Bus signal
909
self.PropertyChanged(dbus.String(u"timeout"),
910
dbus.UInt64(value, variant_level=1))
911
if getattr(self, u"disable_initiator_tag", None) is None:
912
return
913
# Reschedule timeout
914
gobject.source_remove(self.disable_initiator_tag)
915
self.disable_initiator_tag = None
916
time_to_die = (self.
917
_timedelta_to_milliseconds((self
918
.last_checked_ok
919
+ self.timeout)
920
- datetime.datetime
921
.utcnow()))
922
if time_to_die <= 0:
923
# The timeout has passed
924
self.disable()
925
else:
926
self.disable_initiator_tag = (gobject.timeout_add
927
(time_to_die, self.disable))
928
929
# interval - property
930
@dbus_service_property(_interface, signature=u"t",
931
access=u"readwrite")
932
def interval_dbus_property(self, value=None):
933
if value is None: # get
934
return dbus.UInt64(self.interval_milliseconds())
1784
935
self.interval = datetime.timedelta(0, 0, 0, value)
1785
if getattr(self, "checker_initiator_tag", None) is None:
936
# Emit D-Bus signal
937
self.PropertyChanged(dbus.String(u"interval"),
938
dbus.UInt64(value, variant_level=1))
939
if getattr(self, u"checker_initiator_tag", None) is None:
1786
940
return
1787
if self.enabled:
1788
# Reschedule checker run
1789
gobject.source_remove(self.checker_initiator_tag)
1790
self.checker_initiator_tag = gobject.timeout_add(
1791
value, self.start_checker)
1792
self.start_checker() # Start one now, too
1793
1794
# Checker - property
1795
@dbus_service_property(_interface,
1796
signature="s",
1797
access="readwrite")
1798
def Checker_dbus_property(self, value=None):
941
# Reschedule checker run
942
gobject.source_remove(self.checker_initiator_tag)
943
self.checker_initiator_tag = (gobject.timeout_add
944
(value, self.start_checker))
945
self.start_checker() # Start one now, too
946
947
# checker - property
948
@dbus_service_property(_interface, signature=u"s",
949
access=u"readwrite")
950
def checker_dbus_property(self, value=None):
1799
951
if value is None: # get
1800
952
return dbus.String(self.checker_command)
1801
self.checker_command = str(value)
953
self.checker_command = value
954
# Emit D-Bus signal
955
self.PropertyChanged(dbus.String(u"checker"),
956
dbus.String(self.checker_command,
957
variant_level=1))
1802
958
1803
# CheckerRunning - property
1804
@dbus_service_property(_interface,
1805
signature="b",
1806
access="readwrite")
1807
def CheckerRunning_dbus_property(self, value=None):
959
# checker_running - property
960
@dbus_service_property(_interface, signature=u"b",
961
access=u"readwrite")
962
def checker_running_dbus_property(self, value=None):
1808
963
if value is None: # get
1809
964
return dbus.Boolean(self.checker is not None)
1810
965
if value:
1812
967
else:
1813
968
self.stop_checker()
1814
969
1815
# ObjectPath - property
1816
@dbus_annotations(
1817
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
1818
"org.freedesktop.DBus.Deprecated": "true"})
1819
@dbus_service_property(_interface, signature="o", access="read")
1820
def ObjectPath_dbus_property(self):
970
# object_path - property
971
@dbus_service_property(_interface, signature=u"o", access=u"read")
972
def object_path_dbus_property(self):
1821
973
return self.dbus_object_path # is already a dbus.ObjectPath
1822
974
1823
# Secret = property
1824
@dbus_annotations(
1825
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
1826
"invalidates"})
1827
@dbus_service_property(_interface,
1828
signature="ay",
1829
access="write",
1830
byte_arrays=True)
1831
def Secret_dbus_property(self, value):
1832
self.secret = bytes(value)
975
# secret = property
976
@dbus_service_property(_interface, signature=u"ay",
977
access=u"write", byte_arrays=True)
978
def secret_dbus_property(self, value):
979
self.secret = str(value)
1833
980
1834
981
del _interface
1835
982
1836
983
1837
class ProxyClient(object):
1838
def __init__(self, child_pipe, fpr, address):
1839
self._pipe = child_pipe
1840
self._pipe.send(('init', fpr, address))
1841
if not self._pipe.recv():
1842
raise KeyError(fpr)
1843
1844
def __getattribute__(self, name):
1845
if name == '_pipe':
1846
return super(ProxyClient, self).__getattribute__(name)
1847
self._pipe.send(('getattr', name))
1848
data = self._pipe.recv()
1849
if data[0] == 'data':
1850
return data[1]
1851
if data[0] == 'function':
1852
1853
def func(*args, **kwargs):
1854
self._pipe.send(('funcall', name, args, kwargs))
1855
return self._pipe.recv()[1]
1856
1857
return func
1858
1859
def __setattr__(self, name, value):
1860
if name == '_pipe':
1861
return super(ProxyClient, self).__setattr__(name, value)
1862
self._pipe.send(('setattr', name, value))
1863
1864
1865
984
class ClientHandler(socketserver.BaseRequestHandler, object):
1866
985
"""A class to handle client connections.
1867
986
1869
988
Note: This will run in its own forked process."""
1870
989
1871
990
def handle(self):
1872
with contextlib.closing(self.server.child_pipe) as child_pipe:
1873
logger.info("TCP connection from: %s",
1874
str(self.client_address))
1875
logger.debug("Pipe FD: %d",
1876
self.server.child_pipe.fileno())
991
logger.info(u"TCP connection from: %s",
992
unicode(self.client_address))
993
logger.debug(u"IPC Pipe FD: %d", self.server.pipe[1])
994
# Open IPC pipe to parent process
995
with closing(os.fdopen(self.server.pipe[1], u"w", 1)) as ipc:
996
session = (gnutls.connection
997
.ClientSession(self.request,
998
gnutls.connection
999
.X509Credentials()))
1877
1000
1878
session = gnutls.connection.ClientSession(
1879
self.request, gnutls.connection .X509Credentials())
1001
line = self.request.makefile().readline()
1002
logger.debug(u"Protocol version: %r", line)
1003
try:
1004
if int(line.strip().split()[0]) > 1:
1005
raise RuntimeError
1006
except (ValueError, IndexError, RuntimeError), error:
1007
logger.error(u"Unknown protocol version: %s", error)
1008
return
1880
1009
1881
1010
# Note: gnutls.connection.X509Credentials is really a
1882
1011
# generic GnuTLS certificate credentials object so long as
1883
1012
# no X.509 keys are added to it. Therefore, we can use it
1884
1013
# here despite using OpenPGP certificates.
1885
1014
1886
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1887
# "+AES-256-CBC", "+SHA1",
1888
# "+COMP-NULL", "+CTYPE-OPENPGP",
1889
# "+DHE-DSS"))
1015
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1016
# u"+AES-256-CBC", u"+SHA1",
1017
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1018
# u"+DHE-DSS"))
1890
1019
# Use a fallback default, since this MUST be set.
1891
1020
priority = self.server.gnutls_priority
1892
1021
if priority is None:
1893
priority = "NORMAL"
1894
gnutls.library.functions.gnutls_priority_set_direct(
1895
session._c_object, priority, None)
1896
1897
# Start communication using the Mandos protocol
1898
# Get protocol number
1899
line = self.request.makefile().readline()
1900
logger.debug("Protocol version: %r", line)
1901
try:
1902
if int(line.strip().split()[0]) > 1:
1903
raise RuntimeError(line)
1904
except (ValueError, IndexError, RuntimeError) as error:
1905
logger.error("Unknown protocol version: %s", error)
1906
return
1907
1908
# Start GnuTLS connection
1022
priority = u"NORMAL"
1023
(gnutls.library.functions
1024
.gnutls_priority_set_direct(session._c_object,
1025
priority, None))
1026
1909
1027
try:
1910
1028
session.handshake()
1911
except gnutls.errors.GNUTLSError as error:
1912
logger.warning("Handshake failed: %s", error)
1029
except gnutls.errors.GNUTLSError, error:
1030
logger.warning(u"Handshake failed: %s", error)
1913
1031
# Do not run session.bye() here: the session is not
1914
1032
# established. Just abandon the request.
1915
1033
return
1916
logger.debug("Handshake succeeded")
1917
1918
approval_required = False
1034
logger.debug(u"Handshake succeeded")
1919
1035
try:
1920
try:
1921
fpr = self.fingerprint(
1922
self.peer_certificate(session))
1923
except (TypeError,
1924
gnutls.errors.GNUTLSError) as error:
1925
logger.warning("Bad certificate: %s", error)
1926
return
1927
logger.debug("Fingerprint: %s", fpr)
1928
1929
try:
1930
client = ProxyClient(child_pipe, fpr,
1931
self.client_address)
1932
except KeyError:
1933
return
1934
1935
if client.approval_delay:
1936
delay = client.approval_delay
1937
client.approvals_pending += 1
1938
approval_required = True
1939
1940
while True:
1941
if not client.enabled:
1942
logger.info("Client %s is disabled",
1943
client.name)
1944
if self.server.use_dbus:
1945
# Emit D-Bus signal
1946
client.Rejected("Disabled")
1947
return
1948
1949
if client.approved or not client.approval_delay:
1950
#We are approved or approval is disabled
1951
break
1952
elif client.approved is None:
1953
logger.info("Client %s needs approval",
1954
client.name)
1955
if self.server.use_dbus:
1956
# Emit D-Bus signal
1957
client.NeedApproval(
1958
client.approval_delay.total_seconds()
1959
* 1000, client.approved_by_default)
1960
else:
1961
logger.warning("Client %s was not approved",
1962
client.name)
1963
if self.server.use_dbus:
1964
# Emit D-Bus signal
1965
client.Rejected("Denied")
1966
return
1967
1968
#wait until timeout or approved
1969
time = datetime.datetime.now()
1970
client.changedstate.acquire()
1971
client.changedstate.wait(delay.total_seconds())
1972
client.changedstate.release()
1973
time2 = datetime.datetime.now()
1974
if (time2 - time) >= delay:
1975
if not client.approved_by_default:
1976
logger.warning("Client %s timed out while"
1977
" waiting for approval",
1978
client.name)
1979
if self.server.use_dbus:
1980
# Emit D-Bus signal
1981
client.Rejected("Approval timed out")
1982
return
1983
else:
1984
break
1985
else:
1986
delay -= time2 - time
1987
1988
sent_size = 0
1989
while sent_size < len(client.secret):
1990
try:
1991
sent = session.send(client.secret[sent_size:])
1992
except gnutls.errors.GNUTLSError as error:
1993
logger.warning("gnutls send failed",
1994
exc_info=error)
1995
return
1996
logger.debug("Sent: %d, remaining: %d", sent,
1997
len(client.secret) - (sent_size
1998
+ sent))
1999
sent_size += sent
2000
2001
logger.info("Sending secret to %s", client.name)
2002
# bump the timeout using extended_timeout
2003
client.bump_timeout(client.extended_timeout)
2004
if self.server.use_dbus:
2005
# Emit D-Bus signal
2006
client.GotSecret()
1036
fpr = self.fingerprint(self.peer_certificate(session))
1037
except (TypeError, gnutls.errors.GNUTLSError), error:
1038
logger.warning(u"Bad certificate: %s", error)
1039
session.bye()
1040
return
1041
logger.debug(u"Fingerprint: %s", fpr)
2007
1042
2008
finally:
2009
if approval_required:
2010
client.approvals_pending -= 1
2011
try:
2012
session.bye()
2013
except gnutls.errors.GNUTLSError as error:
2014
logger.warning("GnuTLS bye failed",
2015
exc_info=error)
1043
for c in self.server.clients:
1044
if c.fingerprint == fpr:
1045
client = c
1046
break
1047
else:
1048
ipc.write(u"NOTFOUND %s %s\n"
1049
% (fpr, unicode(self.client_address)))
1050
session.bye()
1051
return
1052
# Have to check if client.still_valid(), since it is
1053
# possible that the client timed out while establishing
1054
# the GnuTLS session.
1055
if not client.still_valid():
1056
ipc.write(u"INVALID %s\n" % client.name)
1057
session.bye()
1058
return
1059
ipc.write(u"SENDING %s\n" % client.name)
1060
sent_size = 0
1061
while sent_size < len(client.secret):
1062
sent = session.send(client.secret[sent_size:])
1063
logger.debug(u"Sent: %d, remaining: %d",
1064
sent, len(client.secret)
1065
- (sent_size + sent))
1066
sent_size += sent
1067
session.bye()
2016
1068
2017
1069
@staticmethod
2018
1070
def peer_certificate(session):
2019
1071
"Return the peer's OpenPGP certificate as a bytestring"
2020
1072
# If not an OpenPGP certificate...
2021
if (gnutls.library.functions.gnutls_certificate_type_get(
2022
session._c_object)
1073
if (gnutls.library.functions
1074
.gnutls_certificate_type_get(session._c_object)
2023
1075
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
2024
1076
# ...do the normal thing
2025
1077
return session.peer_certificate
2028
1080
.gnutls_certificate_get_peers
2029
1081
(session._c_object, ctypes.byref(list_size)))
2030
1082
if not bool(cert_list) and list_size.value != 0:
2031
raise gnutls.errors.GNUTLSError("error getting peer"
2032
" certificate")
1083
raise gnutls.errors.GNUTLSError(u"error getting peer"
1084
u" certificate")
2033
1085
if list_size.value == 0:
2034
1086
return None
2035
1087
cert = cert_list[0]
2039
1091
def fingerprint(openpgp):
2040
1092
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2041
1093
# New GnuTLS "datum" with the OpenPGP public key
2042
datum = gnutls.library.types.gnutls_datum_t(
2043
ctypes.cast(ctypes.c_char_p(openpgp),
2044
ctypes.POINTER(ctypes.c_ubyte)),
2045
ctypes.c_uint(len(openpgp)))
1094
datum = (gnutls.library.types
1095
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1096
ctypes.POINTER
1097
(ctypes.c_ubyte)),
1098
ctypes.c_uint(len(openpgp))))
2046
1099
# New empty GnuTLS certificate
2047
1100
crt = gnutls.library.types.gnutls_openpgp_crt_t()
2048
gnutls.library.functions.gnutls_openpgp_crt_init(
2049
ctypes.byref(crt))
1101
(gnutls.library.functions
1102
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2050
1103
# Import the OpenPGP public key into the certificate
2051
gnutls.library.functions.gnutls_openpgp_crt_import(
2052
crt, ctypes.byref(datum),
2053
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1104
(gnutls.library.functions
1105
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1106
gnutls.library.constants
1107
.GNUTLS_OPENPGP_FMT_RAW))
2054
1108
# Verify the self signature in the key
2055
1109
crtverify = ctypes.c_uint()
2056
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
2057
crt, 0, ctypes.byref(crtverify))
1110
(gnutls.library.functions
1111
.gnutls_openpgp_crt_verify_self(crt, 0,
1112
ctypes.byref(crtverify)))
2058
1113
if crtverify.value != 0:
2059
1114
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2060
raise gnutls.errors.CertificateSecurityError(
2061
"Verify failed")
1115
raise (gnutls.errors.CertificateSecurityError
1116
(u"Verify failed"))
2062
1117
# New buffer for the fingerprint
2063
1118
buf = ctypes.create_string_buffer(20)
2064
1119
buf_len = ctypes.c_size_t()
2065
1120
# Get the fingerprint from the certificate into the buffer
2066
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
2067
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1121
(gnutls.library.functions
1122
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1123
ctypes.byref(buf_len)))
2068
1124
# Deinit the certificate
2069
1125
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2070
1126
# Convert the buffer to a Python bytestring
2071
1127
fpr = ctypes.string_at(buf, buf_len.value)
2072
1128
# Convert the bytestring to hexadecimal notation
2073
hex_fpr = binascii.hexlify(fpr).upper()
1129
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
2074
1130
return hex_fpr
2075
1131
2076
1132
2077
class MultiprocessingMixIn(object):
2078
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2079
2080
def sub_process_main(self, request, address):
2081
try:
2082
self.finish_request(request, address)
2083
except Exception:
2084
self.handle_error(request, address)
2085
self.close_request(request)
2086
2087
def process_request(self, request, address):
2088
"""Start a new process to process the request."""
2089
proc = multiprocessing.Process(target = self.sub_process_main,
2090
args = (request, address))
2091
proc.start()
2092
return proc
2093
2094
2095
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2096
""" adds a pipe to the MixIn """
2097
1133
class ForkingMixInWithPipe(socketserver.ForkingMixIn, object):
1134
"""Like socketserver.ForkingMixIn, but also pass a pipe."""
2098
1135
def process_request(self, request, client_address):
2099
1136
"""Overrides and wraps the original process_request().
2100
1137
2101
1138
This function creates a new pipe in self.pipe
2102
1139
"""
2103
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2104
2105
proc = MultiprocessingMixIn.process_request(self, request,
2106
client_address)
2107
self.child_pipe.close()
2108
self.add_pipe(parent_pipe, proc)
2109
2110
def add_pipe(self, parent_pipe, proc):
1140
self.pipe = os.pipe()
1141
super(ForkingMixInWithPipe,
1142
self).process_request(request, client_address)
1143
os.close(self.pipe[1]) # close write end
1144
self.add_pipe(self.pipe[0])
1145
def add_pipe(self, pipe):
2111
1146
"""Dummy function; override as necessary"""
2112
raise NotImplementedError()
2113
2114
2115
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1147
os.close(pipe)
1148
1149
1150
class IPv6_TCPServer(ForkingMixInWithPipe,
2116
1151
socketserver.TCPServer, object):
2117
1152
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2118
1153
2121
1156
interface: None or a network interface name (string)
2122
1157
use_ipv6: Boolean; to use IPv6 or not
2123
1158
"""
2124
2125
1159
def __init__(self, server_address, RequestHandlerClass,
2126
interface=None,
2127
use_ipv6=True,
2128
socketfd=None):
2129
"""If socketfd is set, use that file descriptor instead of
2130
creating a new one with socket.socket().
2131
"""
1160
interface=None, use_ipv6=True):
2132
1161
self.interface = interface
2133
1162
if use_ipv6:
2134
1163
self.address_family = socket.AF_INET6
2135
if socketfd is not None:
2136
# Save the file descriptor
2137
self.socketfd = socketfd
2138
# Save the original socket.socket() function
2139
self.socket_socket = socket.socket
2140
# To implement --socket, we monkey patch socket.socket.
2141
#
2142
# (When socketserver.TCPServer is a new-style class, we
2143
# could make self.socket into a property instead of monkey
2144
# patching socket.socket.)
2145
#
2146
# Create a one-time-only replacement for socket.socket()
2147
@functools.wraps(socket.socket)
2148
def socket_wrapper(*args, **kwargs):
2149
# Restore original function so subsequent calls are
2150
# not affected.
2151
socket.socket = self.socket_socket
2152
del self.socket_socket
2153
# This time only, return a new socket object from the
2154
# saved file descriptor.
2155
return socket.fromfd(self.socketfd, *args, **kwargs)
2156
# Replace socket.socket() function with wrapper
2157
socket.socket = socket_wrapper
2158
# The socketserver.TCPServer.__init__ will call
2159
# socket.socket(), which might be our replacement,
2160
# socket_wrapper(), if socketfd was set.
2161
1164
socketserver.TCPServer.__init__(self, server_address,
2162
1165
RequestHandlerClass)
2163
2164
1166
def server_bind(self):
2165
1167
"""This overrides the normal server_bind() function
2166
1168
to bind to an interface if one was specified, and also NOT to
2167
1169
bind to an address or port if they were not specified."""
2168
1170
if self.interface is not None:
2169
1171
if SO_BINDTODEVICE is None:
2170
logger.error("SO_BINDTODEVICE does not exist;"
2171
" cannot bind to interface %s",
1172
logger.error(u"SO_BINDTODEVICE does not exist;"
1173
u" cannot bind to interface %s",
2172
1174
self.interface)
2173
1175
else:
2174
1176
try:
2175
self.socket.setsockopt(
2176
socket.SOL_SOCKET, SO_BINDTODEVICE,
2177
(self.interface + "\0").encode("utf-8"))
2178
except socket.error as error:
2179
if error.errno == errno.EPERM:
2180
logger.error("No permission to bind to"
2181
" interface %s", self.interface)
2182
elif error.errno == errno.ENOPROTOOPT:
2183
logger.error("SO_BINDTODEVICE not available;"
2184
" cannot bind to interface %s",
2185
self.interface)
2186
elif error.errno == errno.ENODEV:
2187
logger.error("Interface %s does not exist,"
2188
" cannot bind", self.interface)
1177
self.socket.setsockopt(socket.SOL_SOCKET,
1178
SO_BINDTODEVICE,
1179
str(self.interface
1180
+ u'\0'))
1181
except socket.error, error:
1182
if error[0] == errno.EPERM:
1183
logger.error(u"No permission to"
1184
u" bind to interface %s",
1185
self.interface)
1186
elif error[0] == errno.ENOPROTOOPT:
1187
logger.error(u"SO_BINDTODEVICE not available;"
1188
u" cannot bind to interface %s",
1189
self.interface)
2189
1190
else:
2190
1191
raise
2191
1192
# Only bind(2) the socket if we really need to.
2192
1193
if self.server_address[0] or self.server_address[1]:
2193
1194
if not self.server_address[0]:
2194
1195
if self.address_family == socket.AF_INET6:
2195
any_address = "::" # in6addr_any
1196
any_address = u"::" # in6addr_any
2196
1197
else:
2197
any_address = "0.0.0.0" # INADDR_ANY
1198
any_address = socket.INADDR_ANY
2198
1199
self.server_address = (any_address,
2199
1200
self.server_address[1])
2200
1201
elif not self.server_address[1]:
2201
self.server_address = (self.server_address[0], 0)
1202
self.server_address = (self.server_address[0],
1203
0)
2202
1204
# if self.interface:
2203
1205
# self.server_address = (self.server_address[0],
2204
1206
# 0, # port
2218
1220
2219
1221
Assumes a gobject.MainLoop event loop.
2220
1222
"""
2221
2222
1223
def __init__(self, server_address, RequestHandlerClass,
2223
interface=None,
2224
use_ipv6=True,
2225
clients=None,
2226
gnutls_priority=None,
2227
use_dbus=True,
2228
socketfd=None):
1224
interface=None, use_ipv6=True, clients=None,
1225
gnutls_priority=None, use_dbus=True):
2229
1226
self.enabled = False
2230
1227
self.clients = clients
2231
1228
if self.clients is None:
2232
self.clients = {}
1229
self.clients = set()
2233
1230
self.use_dbus = use_dbus
2234
1231
self.gnutls_priority = gnutls_priority
2235
1232
IPv6_TCPServer.__init__(self, server_address,
2236
1233
RequestHandlerClass,
2237
1234
interface = interface,
2238
use_ipv6 = use_ipv6,
2239
socketfd = socketfd)
2240
1235
use_ipv6 = use_ipv6)
2241
1236
def server_activate(self):
2242
1237
if self.enabled:
2243
1238
return socketserver.TCPServer.server_activate(self)
2244
2245
1239
def enable(self):
2246
1240
self.enabled = True
2247
2248
def add_pipe(self, parent_pipe, proc):
1241
def add_pipe(self, pipe):
2249
1242
# Call "handle_ipc" for both data and EOF events
2250
gobject.io_add_watch(
2251
parent_pipe.fileno(),
2252
gobject.IO_IN | gobject.IO_HUP,
2253
functools.partial(self.handle_ipc,
2254
parent_pipe = parent_pipe,
2255
proc = proc))
2256
2257
def handle_ipc(self, source, condition,
2258
parent_pipe=None,
2259
proc = None,
2260
client_object=None):
2261
# error, or the other end of multiprocessing.Pipe has closed
2262
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2263
# Wait for other process to exit
2264
proc.join()
2265
return False
2266
2267
# Read a request from the child
2268
request = parent_pipe.recv()
2269
command = request[0]
2270
2271
if command == 'init':
2272
fpr = request[1]
2273
address = request[2]
2274
2275
for c in self.clients.itervalues():
2276
if c.fingerprint == fpr:
2277
client = c
2278
break
2279
else:
2280
logger.info("Client not found for fingerprint: %s, ad"
2281
"dress: %s", fpr, address)
2282
if self.use_dbus:
2283
# Emit D-Bus signal
2284
mandos_dbus_service.ClientNotFound(fpr,
2285
address[0])
2286
parent_pipe.send(False)
2287
return False
2288
2289
gobject.io_add_watch(
2290
parent_pipe.fileno(),
2291
gobject.IO_IN | gobject.IO_HUP,
2292
functools.partial(self.handle_ipc,
2293
parent_pipe = parent_pipe,
2294
proc = proc,
2295
client_object = client))
2296
parent_pipe.send(True)
2297
# remove the old hook in favor of the new above hook on
2298
# same fileno
2299
return False
2300
if command == 'funcall':
2301
funcname = request[1]
2302
args = request[2]
2303
kwargs = request[3]
2304
2305
parent_pipe.send(('data', getattr(client_object,
2306
funcname)(*args,
2307
**kwargs)))
2308
2309
if command == 'getattr':
2310
attrname = request[1]
2311
if isinstance(client_object.__getattribute__(attrname),
2312
collections.Callable):
2313
parent_pipe.send(('function', ))
2314
else:
2315
parent_pipe.send((
2316
'data', client_object.__getattribute__(attrname)))
2317
2318
if command == 'setattr':
2319
attrname = request[1]
2320
value = request[2]
2321
setattr(client_object, attrname, value)
2322
1243
gobject.io_add_watch(pipe, gobject.IO_IN | gobject.IO_HUP,
1244
self.handle_ipc)
1245
def handle_ipc(self, source, condition, file_objects={}):
1246
condition_names = {
1247
gobject.IO_IN: u"IN", # There is data to read.
1248
gobject.IO_OUT: u"OUT", # Data can be written (without
1249
# blocking).
1250
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1251
gobject.IO_ERR: u"ERR", # Error condition.
1252
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1253
# broken, usually for pipes and
1254
# sockets).
1255
}
1256
conditions_string = ' | '.join(name
1257
for cond, name in
1258
condition_names.iteritems()
1259
if cond & condition)
1260
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1261
conditions_string)
1262
1263
# Turn the pipe file descriptor into a Python file object
1264
if source not in file_objects:
1265
file_objects[source] = os.fdopen(source, u"r", 1)
1266
1267
# Read a line from the file object
1268
cmdline = file_objects[source].readline()
1269
if not cmdline: # Empty line means end of file
1270
# close the IPC pipe
1271
file_objects[source].close()
1272
del file_objects[source]
1273
1274
# Stop calling this function
1275
return False
1276
1277
logger.debug(u"IPC command: %r", cmdline)
1278
1279
# Parse and act on command
1280
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1281
1282
if cmd == u"NOTFOUND":
1283
fpr, address = args.split(None, 1)
1284
logger.warning(u"Client not found for fingerprint: %s, ad"
1285
u"dress: %s", fpr, address)
1286
if self.use_dbus:
1287
# Emit D-Bus signal
1288
mandos_dbus_service.ClientNotFound(fpr, address)
1289
elif cmd == u"INVALID":
1290
for client in self.clients:
1291
if client.name == args:
1292
logger.warning(u"Client %s is invalid", args)
1293
if self.use_dbus:
1294
# Emit D-Bus signal
1295
client.Rejected()
1296
break
1297
else:
1298
logger.error(u"Unknown client %s is invalid", args)
1299
elif cmd == u"SENDING":
1300
for client in self.clients:
1301
if client.name == args:
1302
logger.info(u"Sending secret to %s", client.name)
1303
client.checked_ok()
1304
if self.use_dbus:
1305
# Emit D-Bus signal
1306
client.GotSecret()
1307
break
1308
else:
1309
logger.error(u"Sending secret to unknown client %s",
1310
args)
1311
else:
1312
logger.error(u"Unknown IPC command: %r", cmdline)
1313
1314
# Keep calling this function
2323
1315
return True
2324
1316
2325
1317
2326
def rfc3339_duration_to_delta(duration):
2327
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2328
2329
>>> rfc3339_duration_to_delta("P7D")
2330
datetime.timedelta(7)
2331
>>> rfc3339_duration_to_delta("PT60S")
2332
datetime.timedelta(0, 60)
2333
>>> rfc3339_duration_to_delta("PT60M")
2334
datetime.timedelta(0, 3600)
2335
>>> rfc3339_duration_to_delta("PT24H")
2336
datetime.timedelta(1)
2337
>>> rfc3339_duration_to_delta("P1W")
2338
datetime.timedelta(7)
2339
>>> rfc3339_duration_to_delta("PT5M30S")
2340
datetime.timedelta(0, 330)
2341
>>> rfc3339_duration_to_delta("P1DT3M20S")
2342
datetime.timedelta(1, 200)
2343
"""
2344
2345
# Parsing an RFC 3339 duration with regular expressions is not
2346
# possible - there would have to be multiple places for the same
2347
# values, like seconds. The current code, while more esoteric, is
2348
# cleaner without depending on a parsing library. If Python had a
2349
# built-in library for parsing we would use it, but we'd like to
2350
# avoid excessive use of external libraries.
2351
2352
# New type for defining tokens, syntax, and semantics all-in-one
2353
Token = collections.namedtuple("Token", (
2354
"regexp", # To match token; if "value" is not None, must have
2355
# a "group" containing digits
2356
"value", # datetime.timedelta or None
2357
"followers")) # Tokens valid after this token
2358
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2359
# the "duration" ABNF definition in RFC 3339, Appendix A.
2360
token_end = Token(re.compile(r"$"), None, frozenset())
2361
token_second = Token(re.compile(r"(\d+)S"),
2362
datetime.timedelta(seconds=1),
2363
frozenset((token_end, )))
2364
token_minute = Token(re.compile(r"(\d+)M"),
2365
datetime.timedelta(minutes=1),
2366
frozenset((token_second, token_end)))
2367
token_hour = Token(re.compile(r"(\d+)H"),
2368
datetime.timedelta(hours=1),
2369
frozenset((token_minute, token_end)))
2370
token_time = Token(re.compile(r"T"),
2371
None,
2372
frozenset((token_hour, token_minute,
2373
token_second)))
2374
token_day = Token(re.compile(r"(\d+)D"),
2375
datetime.timedelta(days=1),
2376
frozenset((token_time, token_end)))
2377
token_month = Token(re.compile(r"(\d+)M"),
2378
datetime.timedelta(weeks=4),
2379
frozenset((token_day, token_end)))
2380
token_year = Token(re.compile(r"(\d+)Y"),
2381
datetime.timedelta(weeks=52),
2382
frozenset((token_month, token_end)))
2383
token_week = Token(re.compile(r"(\d+)W"),
2384
datetime.timedelta(weeks=1),
2385
frozenset((token_end, )))
2386
token_duration = Token(re.compile(r"P"), None,
2387
frozenset((token_year, token_month,
2388
token_day, token_time,
2389
token_week)))
2390
# Define starting values
2391
value = datetime.timedelta() # Value so far
2392
found_token = None
2393
followers = frozenset((token_duration, )) # Following valid tokens
2394
s = duration # String left to parse
2395
# Loop until end token is found
2396
while found_token is not token_end:
2397
# Search for any currently valid tokens
2398
for token in followers:
2399
match = token.regexp.match(s)
2400
if match is not None:
2401
# Token found
2402
if token.value is not None:
2403
# Value found, parse digits
2404
factor = int(match.group(1), 10)
2405
# Add to value so far
2406
value += factor * token.value
2407
# Strip token from string
2408
s = token.regexp.sub("", s, 1)
2409
# Go to found token
2410
found_token = token
2411
# Set valid next tokens
2412
followers = found_token.followers
2413
break
2414
else:
2415
# No currently valid tokens were found
2416
raise ValueError("Invalid RFC 3339 duration: {!r}"
2417
.format(duration))
2418
# End token found
2419
return value
2420
2421
2422
1318
def string_to_delta(interval):
2423
1319
"""Parse a string and return a datetime.timedelta
2424
1320
2425
>>> string_to_delta('7d')
1321
>>> string_to_delta(u'7d')
2426
1322
datetime.timedelta(7)
2427
>>> string_to_delta('60s')
1323
>>> string_to_delta(u'60s')
2428
1324
datetime.timedelta(0, 60)
2429
>>> string_to_delta('60m')
1325
>>> string_to_delta(u'60m')
2430
1326
datetime.timedelta(0, 3600)
2431
>>> string_to_delta('24h')
1327
>>> string_to_delta(u'24h')
2432
1328
datetime.timedelta(1)
2433
>>> string_to_delta('1w')
1329
>>> string_to_delta(u'1w')
2434
1330
datetime.timedelta(7)
2435
>>> string_to_delta('5m 30s')
1331
>>> string_to_delta(u'5m 30s')
2436
1332
datetime.timedelta(0, 330)
2437
1333
"""
2438
2439
try:
2440
return rfc3339_duration_to_delta(interval)
2441
except ValueError:
2442
pass
2443
2444
1334
timevalue = datetime.timedelta(0)
2445
1335
for s in interval.split():
2446
1336
try:
2447
suffix = s[-1]
1337
suffix = unicode(s[-1])
2448
1338
value = int(s[:-1])
2449
if suffix == "d":
1339
if suffix == u"d":
2450
1340
delta = datetime.timedelta(value)
2451
elif suffix == "s":
1341
elif suffix == u"s":
2452
1342
delta = datetime.timedelta(0, value)
2453
elif suffix == "m":
1343
elif suffix == u"m":
2454
1344
delta = datetime.timedelta(0, 0, 0, 0, value)
2455
elif suffix == "h":
1345
elif suffix == u"h":
2456
1346
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
2457
elif suffix == "w":
1347
elif suffix == u"w":
2458
1348
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2459
1349
else:
2460
raise ValueError("Unknown suffix {!r}".format(suffix))
2461
except IndexError as e:
2462
raise ValueError(*(e.args))
1350
raise ValueError(u"Unknown suffix %r" % suffix)
1351
except (ValueError, IndexError), e:
1352
raise ValueError(e.message)
2463
1353
timevalue += delta
2464
1354
return timevalue
2465
1355
2466
1356
1357
def if_nametoindex(interface):
1358
"""Call the C function if_nametoindex(), or equivalent
1359
1360
Note: This function cannot accept a unicode string."""
1361
global if_nametoindex
1362
try:
1363
if_nametoindex = (ctypes.cdll.LoadLibrary
1364
(ctypes.util.find_library(u"c"))
1365
.if_nametoindex)
1366
except (OSError, AttributeError):
1367
logger.warning(u"Doing if_nametoindex the hard way")
1368
def if_nametoindex(interface):
1369
"Get an interface index the hard way, i.e. using fcntl()"
1370
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1371
with closing(socket.socket()) as s:
1372
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1373
struct.pack(str(u"16s16x"),
1374
interface))
1375
interface_index = struct.unpack(str(u"I"),
1376
ifreq[16:20])[0]
1377
return interface_index
1378
return if_nametoindex(interface)
1379
1380
2467
1381
def daemon(nochdir = False, noclose = False):
2468
1382
"""See daemon(3). Standard BSD Unix function.
2469
1383
2472
1386
sys.exit()
2473
1387
os.setsid()
2474
1388
if not nochdir:
2475
os.chdir("/")
1389
os.chdir(u"/")
2476
1390
if os.fork():
2477
1391
sys.exit()
2478
1392
if not noclose:
2479
1393
# Close all standard open file descriptors
2480
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1394
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2481
1395
if not stat.S_ISCHR(os.fstat(null).st_mode):
2482
1396
raise OSError(errno.ENODEV,
2483
"{} not a character device"
2484
.format(os.devnull))
1397
u"%s not a character device"
1398
% os.path.devnull)
2485
1399
os.dup2(null, sys.stdin.fileno())
2486
1400
os.dup2(null, sys.stdout.fileno())
2487
1401
os.dup2(null, sys.stderr.fileno())
2494
1408
##################################################################
2495
1409
# Parsing of options, both command line and config file
2496
1410
2497
parser = argparse.ArgumentParser()
2498
parser.add_argument("-v", "--version", action="version",
2499
version = "%(prog)s {}".format(version),
2500
help="show version number and exit")
2501
parser.add_argument("-i", "--interface", metavar="IF",
2502
help="Bind to interface IF")
2503
parser.add_argument("-a", "--address",
2504
help="Address to listen for requests on")
2505
parser.add_argument("-p", "--port", type=int,
2506
help="Port number to receive requests on")
2507
parser.add_argument("--check", action="store_true",
2508
help="Run self-test")
2509
parser.add_argument("--debug", action="store_true",
2510
help="Debug mode; run in foreground and log"
2511
" to terminal", default=None)
2512
parser.add_argument("--debuglevel", metavar="LEVEL",
2513
help="Debug level for stdout output")
2514
parser.add_argument("--priority", help="GnuTLS"
2515
" priority string (see GnuTLS documentation)")
2516
parser.add_argument("--servicename",
2517
metavar="NAME", help="Zeroconf service name")
2518
parser.add_argument("--configdir",
2519
default="/etc/mandos", metavar="DIR",
2520
help="Directory to search for configuration"
2521
" files")
2522
parser.add_argument("--no-dbus", action="store_false",
2523
dest="use_dbus", help="Do not provide D-Bus"
2524
" system bus interface", default=None)
2525
parser.add_argument("--no-ipv6", action="store_false",
2526
dest="use_ipv6", help="Do not use IPv6",
2527
default=None)
2528
parser.add_argument("--no-restore", action="store_false",
2529
dest="restore", help="Do not restore stored"
2530
" state", default=None)
2531
parser.add_argument("--socket", type=int,
2532
help="Specify a file descriptor to a network"
2533
" socket to use instead of creating one")
2534
parser.add_argument("--statedir", metavar="DIR",
2535
help="Directory to save/restore state in")
2536
parser.add_argument("--foreground", action="store_true",
2537
help="Run in foreground", default=None)
2538
parser.add_argument("--no-zeroconf", action="store_false",
2539
dest="zeroconf", help="Do not use Zeroconf",
2540
default=None)
2541
2542
options = parser.parse_args()
1411
parser = optparse.OptionParser(version = "%%prog %s" % version)
1412
parser.add_option("-i", u"--interface", type=u"string",
1413
metavar="IF", help=u"Bind to interface IF")
1414
parser.add_option("-a", u"--address", type=u"string",
1415
help=u"Address to listen for requests on")
1416
parser.add_option("-p", u"--port", type=u"int",
1417
help=u"Port number to receive requests on")
1418
parser.add_option("--check", action=u"store_true",
1419
help=u"Run self-test")
1420
parser.add_option("--debug", action=u"store_true",
1421
help=u"Debug mode; run in foreground and log to"
1422
u" terminal")
1423
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1424
u" priority string (see GnuTLS documentation)")
1425
parser.add_option("--servicename", type=u"string",
1426
metavar=u"NAME", help=u"Zeroconf service name")
1427
parser.add_option("--configdir", type=u"string",
1428
default=u"/etc/mandos", metavar=u"DIR",
1429
help=u"Directory to search for configuration"
1430
u" files")
1431
parser.add_option("--no-dbus", action=u"store_false",
1432
dest=u"use_dbus", help=u"Do not provide D-Bus"
1433
u" system bus interface")
1434
parser.add_option("--no-ipv6", action=u"store_false",
1435
dest=u"use_ipv6", help=u"Do not use IPv6")
1436
options = parser.parse_args()[0]
2543
1437
2544
1438
if options.check:
2545
1439
import doctest
2546
fail_count, test_count = doctest.testmod()
2547
sys.exit(os.EX_OK if fail_count == 0 else 1)
1440
doctest.testmod()
1441
sys.exit()
2548
1442
2549
1443
# Default values for config file for server-global settings
2550
server_defaults = { "interface": "",
2551
"address": "",
2552
"port": "",
2553
"debug": "False",
2554
"priority":
2555
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2556
":+SIGN-DSA-SHA256",
2557
"servicename": "Mandos",
2558
"use_dbus": "True",
2559
"use_ipv6": "True",
2560
"debuglevel": "",
2561
"restore": "True",
2562
"socket": "",
2563
"statedir": "/var/lib/mandos",
2564
"foreground": "False",
2565
"zeroconf": "True",
2566
}
1444
server_defaults = { u"interface": u"",
1445
u"address": u"",
1446
u"port": u"",
1447
u"debug": u"False",
1448
u"priority":
1449
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1450
u"servicename": u"Mandos",
1451
u"use_dbus": u"True",
1452
u"use_ipv6": u"True",
1453
}
2567
1454
2568
1455
# Parse config file for server-global settings
2569
1456
server_config = configparser.SafeConfigParser(server_defaults)
2570
1457
del server_defaults
2571
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1458
server_config.read(os.path.join(options.configdir,
1459
u"mandos.conf"))
2572
1460
# Convert the SafeConfigParser object to a dict
2573
1461
server_settings = server_config.defaults()
2574
1462
# Use the appropriate methods on the non-string config options
2575
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2576
server_settings[option] = server_config.getboolean("DEFAULT",
1463
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1464
server_settings[option] = server_config.getboolean(u"DEFAULT",
2577
1465
option)
2578
1466
if server_settings["port"]:
2579
server_settings["port"] = server_config.getint("DEFAULT",
2580
"port")
2581
if server_settings["socket"]:
2582
server_settings["socket"] = server_config.getint("DEFAULT",
2583
"socket")
2584
# Later, stdin will, and stdout and stderr might, be dup'ed
2585
# over with an opened os.devnull. But we don't want this to
2586
# happen with a supplied network socket.
2587
if 0 <= server_settings["socket"] <= 2:
2588
server_settings["socket"] = os.dup(server_settings
2589
["socket"])
1467
server_settings["port"] = server_config.getint(u"DEFAULT",
1468
u"port")
2590
1469
del server_config
2591
1470
2592
1471
# Override the settings from the config file with command line
2593
1472
# options, if set.
2594
for option in ("interface", "address", "port", "debug",
2595
"priority", "servicename", "configdir", "use_dbus",
2596
"use_ipv6", "debuglevel", "restore", "statedir",
2597
"socket", "foreground", "zeroconf"):
1473
for option in (u"interface", u"address", u"port", u"debug",
1474
u"priority", u"servicename", u"configdir",
1475
u"use_dbus", u"use_ipv6"):
2598
1476
value = getattr(options, option)
2599
1477
if value is not None:
2600
1478
server_settings[option] = value
2601
1479
del options
2602
1480
# Force all strings to be unicode
2603
1481
for option in server_settings.keys():
2604
if isinstance(server_settings[option], bytes):
2605
server_settings[option] = (server_settings[option]
2606
.decode("utf-8"))
2607
# Force all boolean options to be boolean
2608
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2609
"foreground", "zeroconf"):
2610
server_settings[option] = bool(server_settings[option])
2611
# Debug implies foreground
2612
if server_settings["debug"]:
2613
server_settings["foreground"] = True
1482
if type(server_settings[option]) is str:
1483
server_settings[option] = unicode(server_settings[option])
2614
1484
# Now we have our good server settings in "server_settings"
2615
1485
2616
1486
##################################################################
2617
1487
2618
if (not server_settings["zeroconf"]
2619
and not (server_settings["port"]
2620
or server_settings["socket"] != "")):
2621
parser.error("Needs port or socket to work without Zeroconf")
2622
2623
1488
# For convenience
2624
debug = server_settings["debug"]
2625
debuglevel = server_settings["debuglevel"]
2626
use_dbus = server_settings["use_dbus"]
2627
use_ipv6 = server_settings["use_ipv6"]
2628
stored_state_path = os.path.join(server_settings["statedir"],
2629
stored_state_file)
2630
foreground = server_settings["foreground"]
2631
zeroconf = server_settings["zeroconf"]
2632
2633
if debug:
2634
initlogger(debug, logging.DEBUG)
2635
else:
2636
if not debuglevel:
2637
initlogger(debug)
2638
else:
2639
level = getattr(logging, debuglevel.upper())
2640
initlogger(debug, level)
2641
2642
if server_settings["servicename"] != "Mandos":
2643
syslogger.setFormatter(
2644
logging.Formatter('Mandos ({}) [%(process)d]:'
2645
' %(levelname)s: %(message)s'.format(
2646
server_settings["servicename"])))
1489
debug = server_settings[u"debug"]
1490
use_dbus = server_settings[u"use_dbus"]
1491
use_ipv6 = server_settings[u"use_ipv6"]
1492
1493
if not debug:
1494
syslogger.setLevel(logging.WARNING)
1495
console.setLevel(logging.WARNING)
1496
1497
if server_settings[u"servicename"] != u"Mandos":
1498
syslogger.setFormatter(logging.Formatter
1499
(u'Mandos (%s) [%%(process)d]:'
1500
u' %%(levelname)s: %%(message)s'
1501
% server_settings[u"servicename"]))
2647
1502
2648
1503
# Parse config file with clients
2649
client_config = configparser.SafeConfigParser(Client
2650
.client_defaults)
2651
client_config.read(os.path.join(server_settings["configdir"],
2652
"clients.conf"))
1504
client_defaults = { u"timeout": u"1h",
1505
u"interval": u"5m",
1506
u"checker": u"fping -q -- %%(host)s",
1507
u"host": u"",
1508
}
1509
client_config = configparser.SafeConfigParser(client_defaults)
1510
client_config.read(os.path.join(server_settings[u"configdir"],
1511
u"clients.conf"))
2653
1512
2654
1513
global mandos_dbus_service
2655
1514
mandos_dbus_service = None
2656
1515
2657
socketfd = None
2658
if server_settings["socket"] != "":
2659
socketfd = server_settings["socket"]
2660
tcp_server = MandosServer(
2661
(server_settings["address"], server_settings["port"]),
2662
ClientHandler,
2663
interface=(server_settings["interface"] or None),
2664
use_ipv6=use_ipv6,
2665
gnutls_priority=server_settings["priority"],
2666
use_dbus=use_dbus,
2667
socketfd=socketfd)
2668
if not foreground:
2669
pidfilename = "/run/mandos.pid"
2670
if not os.path.isdir("/run/."):
2671
pidfilename = "/var/run/mandos.pid"
2672
pidfile = None
2673
try:
2674
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2675
except IOError as e:
2676
logger.error("Could not open file %r", pidfilename,
2677
exc_info=e)
1516
tcp_server = MandosServer((server_settings[u"address"],
1517
server_settings[u"port"]),
1518
ClientHandler,
1519
interface=server_settings[u"interface"],
1520
use_ipv6=use_ipv6,
1521
gnutls_priority=
1522
server_settings[u"priority"],
1523
use_dbus=use_dbus)
1524
pidfilename = u"/var/run/mandos.pid"
1525
try:
1526
pidfile = open(pidfilename, u"w")
1527
except IOError:
1528
logger.error(u"Could not open file %r", pidfilename)
2678
1529
2679
for name in ("_mandos", "mandos", "nobody"):
1530
try:
1531
uid = pwd.getpwnam(u"_mandos").pw_uid
1532
gid = pwd.getpwnam(u"_mandos").pw_gid
1533
except KeyError:
2680
1534
try:
2681
uid = pwd.getpwnam(name).pw_uid
2682
gid = pwd.getpwnam(name).pw_gid
2683
break
1535
uid = pwd.getpwnam(u"mandos").pw_uid
1536
gid = pwd.getpwnam(u"mandos").pw_gid
2684
1537
except KeyError:
2685
continue
2686
else:
2687
uid = 65534
2688
gid = 65534
1538
try:
1539
uid = pwd.getpwnam(u"nobody").pw_uid
1540
gid = pwd.getpwnam(u"nobody").pw_gid
1541
except KeyError:
1542
uid = 65534
1543
gid = 65534
2689
1544
try:
2690
1545
os.setgid(gid)
2691
1546
os.setuid(uid)
2692
except OSError as error:
2693
if error.errno != errno.EPERM:
2694
raise
1547
except OSError, error:
1548
if error[0] != errno.EPERM:
1549
raise error
2695
1550
1551
# Enable all possible GnuTLS debugging
2696
1552
if debug:
2697
# Enable all possible GnuTLS debugging
2698
2699
1553
# "Use a log level over 10 to enable all debugging options."
2700
1554
# - GnuTLS manual
2701
1555
gnutls.library.functions.gnutls_global_set_log_level(11)
2702
1556
2703
1557
@gnutls.library.types.gnutls_log_func
2704
1558
def debug_gnutls(level, string):
2705
logger.debug("GnuTLS: %s", string[:-1])
2706
2707
gnutls.library.functions.gnutls_global_set_log_function(
2708
debug_gnutls)
2709
2710
# Redirect stdin so all checkers get /dev/null
2711
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2712
os.dup2(null, sys.stdin.fileno())
2713
if null > 2:
2714
os.close(null)
2715
2716
# Need to fork before connecting to D-Bus
2717
if not foreground:
2718
# Close all input and output, do double fork, etc.
2719
daemon()
2720
2721
# multiprocessing will use threads, so before we use gobject we
2722
# need to inform gobject that threads will be used.
2723
gobject.threads_init()
1559
logger.debug(u"GnuTLS: %s", string[:-1])
1560
1561
(gnutls.library.functions
1562
.gnutls_global_set_log_function(debug_gnutls))
2724
1563
2725
1564
global main_loop
2726
1565
# From the Avahi example code
2727
DBusGMainLoop(set_as_default=True)
1566
DBusGMainLoop(set_as_default=True )
2728
1567
main_loop = gobject.MainLoop()
2729
1568
bus = dbus.SystemBus()
2730
1569
# End of Avahi example code
2731
1570
if use_dbus:
2732
1571
try:
2733
bus_name = dbus.service.BusName("se.recompile.Mandos",
2734
bus,
2735
do_not_queue=True)
2736
old_bus_name = dbus.service.BusName(
2737
"se.bsnet.fukt.Mandos", bus,
2738
do_not_queue=True)
2739
except dbus.exceptions.DBusException as e:
2740
logger.error("Disabling D-Bus:", exc_info=e)
1572
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1573
bus, do_not_queue=True)
1574
except dbus.exceptions.NameExistsException, e:
1575
logger.error(unicode(e) + u", disabling D-Bus")
2741
1576
use_dbus = False
2742
server_settings["use_dbus"] = False
1577
server_settings[u"use_dbus"] = False
2743
1578
tcp_server.use_dbus = False
2744
if zeroconf:
2745
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2746
service = AvahiServiceToSyslog(
2747
name = server_settings["servicename"],
2748
servicetype = "_mandos._tcp",
2749
protocol = protocol,
2750
bus = bus)
2751
if server_settings["interface"]:
2752
service.interface = if_nametoindex(
2753
server_settings["interface"].encode("utf-8"))
2754
2755
global multiprocessing_manager
2756
multiprocessing_manager = multiprocessing.Manager()
1579
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1580
service = AvahiService(name = server_settings[u"servicename"],
1581
servicetype = u"_mandos._tcp",
1582
protocol = protocol, bus = bus)
1583
if server_settings["interface"]:
1584
service.interface = (if_nametoindex
1585
(str(server_settings[u"interface"])))
2757
1586
2758
1587
client_class = Client
2759
1588
if use_dbus:
2760
1589
client_class = functools.partial(ClientDBus, bus = bus)
2761
2762
client_settings = Client.config_parser(client_config)
2763
old_client_settings = {}
2764
clients_data = {}
2765
2766
# This is used to redirect stdout and stderr for checker processes
2767
global wnull
2768
wnull = open(os.devnull, "w") # A writable /dev/null
2769
# Only used if server is running in foreground but not in debug
2770
# mode
2771
if debug or not foreground:
2772
wnull.close()
2773
2774
# Get client data and settings from last running state.
2775
if server_settings["restore"]:
2776
try:
2777
with open(stored_state_path, "rb") as stored_state:
2778
clients_data, old_client_settings = pickle.load(
2779
stored_state)
2780
os.remove(stored_state_path)
2781
except IOError as e:
2782
if e.errno == errno.ENOENT:
2783
logger.warning("Could not load persistent state:"
2784
" {}".format(os.strerror(e.errno)))
2785
else:
2786
logger.critical("Could not load persistent state:",
2787
exc_info=e)
2788
raise
2789
except EOFError as e:
2790
logger.warning("Could not load persistent state: "
2791
"EOFError:",
2792
exc_info=e)
2793
2794
with PGPEngine() as pgp:
2795
for client_name, client in clients_data.items():
2796
# Skip removed clients
2797
if client_name not in client_settings:
2798
continue
2799
2800
# Decide which value to use after restoring saved state.
2801
# We have three different values: Old config file,
2802
# new config file, and saved state.
2803
# New config value takes precedence if it differs from old
2804
# config value, otherwise use saved state.
2805
for name, value in client_settings[client_name].items():
2806
try:
2807
# For each value in new config, check if it
2808
# differs from the old config value (Except for
2809
# the "secret" attribute)
2810
if (name != "secret"
2811
and (value !=
2812
old_client_settings[client_name][name])):
2813
client[name] = value
2814
except KeyError:
2815
pass
2816
2817
# Clients who has passed its expire date can still be
2818
# enabled if its last checker was successful. A Client
2819
# whose checker succeeded before we stored its state is
2820
# assumed to have successfully run all checkers during
2821
# downtime.
2822
if client["enabled"]:
2823
if datetime.datetime.utcnow() >= client["expires"]:
2824
if not client["last_checked_ok"]:
2825
logger.warning(
2826
"disabling client {} - Client never "
2827
"performed a successful checker".format(
2828
client_name))
2829
client["enabled"] = False
2830
elif client["last_checker_status"] != 0:
2831
logger.warning(
2832
"disabling client {} - Client last"
2833
" checker failed with error code"
2834
" {}".format(
2835
client_name,
2836
client["last_checker_status"]))
2837
client["enabled"] = False
2838
else:
2839
client["expires"] = (
2840
datetime.datetime.utcnow()
2841
+ client["timeout"])
2842
logger.debug("Last checker succeeded,"
2843
" keeping {} enabled".format(
2844
client_name))
2845
try:
2846
client["secret"] = pgp.decrypt(
2847
client["encrypted_secret"],
2848
client_settings[client_name]["secret"])
2849
except PGPError:
2850
# If decryption fails, we use secret from new settings
2851
logger.debug("Failed to decrypt {} old secret".format(
2852
client_name))
2853
client["secret"] = (client_settings[client_name]
2854
["secret"])
2855
2856
# Add/remove clients based on new changes made to config
2857
for client_name in (set(old_client_settings)
2858
- set(client_settings)):
2859
del clients_data[client_name]
2860
for client_name in (set(client_settings)
2861
- set(old_client_settings)):
2862
clients_data[client_name] = client_settings[client_name]
2863
2864
# Create all client objects
2865
for client_name, client in clients_data.items():
2866
tcp_server.clients[client_name] = client_class(
2867
name = client_name,
2868
settings = client,
2869
server_settings = server_settings)
2870
1590
tcp_server.clients.update(set(
1591
client_class(name = section,
1592
config= dict(client_config.items(section)))
1593
for section in client_config.sections()))
2871
1594
if not tcp_server.clients:
2872
logger.warning("No clients defined")
2873
2874
if not foreground:
2875
if pidfile is not None:
1595
logger.warning(u"No clients defined")
1596
1597
if debug:
1598
# Redirect stdin so all checkers get /dev/null
1599
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1600
os.dup2(null, sys.stdin.fileno())
1601
if null > 2:
1602
os.close(null)
1603
else:
1604
# No console logging
1605
logger.removeHandler(console)
1606
# Close all input and output, do double fork, etc.
1607
daemon()
1608
1609
try:
1610
with closing(pidfile):
2876
1611
pid = os.getpid()
2877
try:
2878
with pidfile:
2879
print(pid, file=pidfile)
2880
except IOError:
2881
logger.error("Could not write to file %r with PID %d",
2882
pidfilename, pid)
1612
pidfile.write(str(pid) + "\n")
2883
1613
del pidfile
2884
del pidfilename
1614
except IOError:
1615
logger.error(u"Could not write to file %r with PID %d",
1616
pidfilename, pid)
1617
except NameError:
1618
# "pidfile" was never created
1619
pass
1620
del pidfilename
2885
1621
1622
if not debug:
1623
signal.signal(signal.SIGINT, signal.SIG_IGN)
2886
1624
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2887
1625
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2888
1626
2889
1627
if use_dbus:
2890
2891
@alternate_dbus_interfaces(
2892
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2893
class MandosDBusService(DBusObjectWithObjectManager):
1628
class MandosDBusService(dbus.service.Object):
2894
1629
"""A D-Bus proxy object"""
2895
2896
1630
def __init__(self):
2897
dbus.service.Object.__init__(self, bus, "/")
2898
2899
_interface = "se.recompile.Mandos"
2900
2901
@dbus.service.signal(_interface, signature="o")
2902
def ClientAdded(self, objpath):
1631
dbus.service.Object.__init__(self, bus, u"/")
1632
_interface = u"se.bsnet.fukt.Mandos"
1633
1634
@dbus.service.signal(_interface, signature=u"oa{sv}")
1635
def ClientAdded(self, objpath, properties):
2903
1636
"D-Bus signal"
2904
1637
pass
2905
1638
2906
@dbus.service.signal(_interface, signature="ss")
1639
@dbus.service.signal(_interface, signature=u"ss")
2907
1640
def ClientNotFound(self, fingerprint, address):
2908
1641
"D-Bus signal"
2909
1642
pass
2910
1643
2911
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2912
"true"})
2913
@dbus.service.signal(_interface, signature="os")
1644
@dbus.service.signal(_interface, signature=u"os")
2914
1645
def ClientRemoved(self, objpath, name):
2915
1646
"D-Bus signal"
2916
1647
pass
2917
1648
2918
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2919
"true"})
2920
@dbus.service.method(_interface, out_signature="ao")
1649
@dbus.service.method(_interface, out_signature=u"ao")
2921
1650
def GetAllClients(self):
2922
1651
"D-Bus method"
2923
return dbus.Array(c.dbus_object_path for c in
2924
tcp_server.clients.itervalues())
1652
return dbus.Array(c.dbus_object_path
1653
for c in tcp_server.clients)
2925
1654
2926
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2927
"true"})
2928
1655
@dbus.service.method(_interface,
2929
out_signature="a{oa{sv}}")
1656
out_signature=u"a{oa{sv}}")
2930
1657
def GetAllClientsWithProperties(self):
2931
1658
"D-Bus method"
2932
1659
return dbus.Dictionary(
2933
{ c.dbus_object_path: c.GetAll(
2934
"se.recompile.Mandos.Client")
2935
for c in tcp_server.clients.itervalues() },
2936
signature="oa{sv}")
1660
((c.dbus_object_path, c.GetAll(u""))
1661
for c in tcp_server.clients),
1662
signature=u"oa{sv}")
2937
1663
2938
@dbus.service.method(_interface, in_signature="o")
1664
@dbus.service.method(_interface, in_signature=u"o")
2939
1665
def RemoveClient(self, object_path):
2940
1666
"D-Bus method"
2941
for c in tcp_server.clients.itervalues():
1667
for c in tcp_server.clients:
2942
1668
if c.dbus_object_path == object_path:
2943
del tcp_server.clients[c.name]
1669
tcp_server.clients.remove(c)
2944
1670
c.remove_from_connection()
2945
# Don't signal the disabling
1671
# Don't signal anything except ClientRemoved
2946
1672
c.disable(quiet=True)
2947
# Emit D-Bus signal for removal
2948
self.client_removed_signal(c)
1673
# Emit D-Bus signal
1674
self.ClientRemoved(object_path, c.name)
2949
1675
return
2950
1676
raise KeyError(object_path)
2951
1677
2952
1678
del _interface
2953
2954
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
2955
out_signature = "a{oa{sa{sv}}}")
2956
def GetManagedObjects(self):
2957
"""D-Bus method"""
2958
return dbus.Dictionary(
2959
{ client.dbus_object_path:
2960
dbus.Dictionary(
2961
{ interface: client.GetAll(interface)
2962
for interface in
2963
client._get_all_interface_names()})
2964
for client in tcp_server.clients.values()})
2965
2966
def client_added_signal(self, client):
2967
"""Send the new standard signal and the old signal"""
2968
if use_dbus:
2969
# New standard signal
2970
self.InterfacesAdded(
2971
client.dbus_object_path,
2972
dbus.Dictionary(
2973
{ interface: client.GetAll(interface)
2974
for interface in
2975
client._get_all_interface_names()}))
2976
# Old signal
2977
self.ClientAdded(client.dbus_object_path)
2978
2979
def client_removed_signal(self, client):
2980
"""Send the new standard signal and the old signal"""
2981
if use_dbus:
2982
# New standard signal
2983
self.InterfacesRemoved(
2984
client.dbus_object_path,
2985
client._get_all_interface_names())
2986
# Old signal
2987
self.ClientRemoved(client.dbus_object_path,
2988
client.name)
2989
1679
2990
1680
mandos_dbus_service = MandosDBusService()
2991
1681
2992
1682
def cleanup():
2993
1683
"Cleanup function; run on exit"
2994
if zeroconf:
2995
service.cleanup()
2996
2997
multiprocessing.active_children()
2998
wnull.close()
2999
if not (tcp_server.clients or client_settings):
3000
return
3001
3002
# Store client before exiting. Secrets are encrypted with key
3003
# based on what config file has. If config file is
3004
# removed/edited, old secret will thus be unrecovable.
3005
clients = {}
3006
with PGPEngine() as pgp:
3007
for client in tcp_server.clients.itervalues():
3008
key = client_settings[client.name]["secret"]
3009
client.encrypted_secret = pgp.encrypt(client.secret,
3010
key)
3011
client_dict = {}
3012
3013
# A list of attributes that can not be pickled
3014
# + secret.
3015
exclude = { "bus", "changedstate", "secret",
3016
"checker", "server_settings" }
3017
for name, typ in inspect.getmembers(dbus.service
3018
.Object):
3019
exclude.add(name)
3020
3021
client_dict["encrypted_secret"] = (client
3022
.encrypted_secret)
3023
for attr in client.client_structure:
3024
if attr not in exclude:
3025
client_dict[attr] = getattr(client, attr)
3026
3027
clients[client.name] = client_dict
3028
del client_settings[client.name]["secret"]
3029
3030
try:
3031
with tempfile.NamedTemporaryFile(
3032
mode='wb',
3033
suffix=".pickle",
3034
prefix='clients-',
3035
dir=os.path.dirname(stored_state_path),
3036
delete=False) as stored_state:
3037
pickle.dump((clients, client_settings), stored_state)
3038
tempname = stored_state.name
3039
os.rename(tempname, stored_state_path)
3040
except (IOError, OSError) as e:
3041
if not debug:
3042
try:
3043
os.remove(tempname)
3044
except NameError:
3045
pass
3046
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3047
logger.warning("Could not save persistent state: {}"
3048
.format(os.strerror(e.errno)))
3049
else:
3050
logger.warning("Could not save persistent state:",
3051
exc_info=e)
3052
raise
3053
3054
# Delete all clients, and settings from config
1684
service.cleanup()
1685
3055
1686
while tcp_server.clients:
3056
name, client = tcp_server.clients.popitem()
1687
client = tcp_server.clients.pop()
3057
1688
if use_dbus:
3058
1689
client.remove_from_connection()
3059
# Don't signal the disabling
1690
client.disable_hook = None
1691
# Don't signal anything except ClientRemoved
3060
1692
client.disable(quiet=True)
3061
# Emit D-Bus signal for removal
3062
mandos_dbus_service.client_removed_signal(client)
3063
client_settings.clear()
1693
if use_dbus:
1694
# Emit D-Bus signal
1695
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1696
client.name)
3064
1697
3065
1698
atexit.register(cleanup)
3066
1699
3067
for client in tcp_server.clients.itervalues():
1700
for client in tcp_server.clients:
3068
1701
if use_dbus:
3069
# Emit D-Bus signal for adding
3070
mandos_dbus_service.client_added_signal(client)
3071
# Need to initiate checking of clients
3072
if client.enabled:
3073
client.init_checker()
1702
# Emit D-Bus signal
1703
mandos_dbus_service.ClientAdded(client.dbus_object_path,
1704
client.GetAll(u""))
1705
client.enable()
3074
1706
3075
1707
tcp_server.enable()
3076
1708
tcp_server.server_activate()
3077
1709
3078
1710
# Find out what port we got
3079
if zeroconf:
3080
service.port = tcp_server.socket.getsockname()[1]
1711
service.port = tcp_server.socket.getsockname()[1]
3081
1712
if use_ipv6:
3082
logger.info("Now listening on address %r, port %d,"
3083
" flowinfo %d, scope_id %d",
3084
*tcp_server.socket.getsockname())
1713
logger.info(u"Now listening on address %r, port %d,"
1714
" flowinfo %d, scope_id %d"
1715
% tcp_server.socket.getsockname())
3085
1716
else: # IPv4
3086
logger.info("Now listening on address %r, port %d",
3087
*tcp_server.socket.getsockname())
1717
logger.info(u"Now listening on address %r, port %d"
1718
% tcp_server.socket.getsockname())
3088
1719
3089
1720
#service.interface = tcp_server.socket.getsockname()[3]
3090
1721
3091
1722
try:
3092
if zeroconf:
3093
# From the Avahi example code
3094
try:
3095
service.activate()
3096
except dbus.exceptions.DBusException as error:
3097
logger.critical("D-Bus Exception", exc_info=error)
3098
cleanup()
3099
sys.exit(1)
3100
# End of Avahi example code
1723
# From the Avahi example code
1724
try:
1725
service.activate()
1726
except dbus.exceptions.DBusException, error:
1727
logger.critical(u"DBusException: %s", error)
1728
cleanup()
1729
sys.exit(1)
1730
# End of Avahi example code
3101
1731
3102
1732
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3103
1733
lambda *args, **kwargs:
3104
1734
(tcp_server.handle_request
3105
1735
(*args[2:], **kwargs) or True))
3106
1736
3107
logger.debug("Starting main loop")
1737
logger.debug(u"Starting main loop")
3108
1738
main_loop.run()
3109
except AvahiError as error:
3110
logger.critical("Avahi Error", exc_info=error)
1739
except AvahiError, error:
1740
logger.critical(u"AvahiError: %s", error)
3111
1741
cleanup()
3112
1742
sys.exit(1)
3113
1743
except KeyboardInterrupt:
3114
1744
if debug:
3115
print("", file=sys.stderr)
3116
logger.debug("Server received KeyboardInterrupt")
3117
logger.debug("Server exiting")
1745
print >> sys.stderr
1746
logger.debug(u"Server received KeyboardInterrupt")
1747
logger.debug(u"Server exiting")
3118
1748
# Must run before the D-Bus bus name gets deregistered
3119
1749
cleanup()
3120
1750
3121
3122
1751
if __name__ == '__main__':
3123
1752
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0