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- Committer: Teddy Hogeborn
- Date: 2012-06-13 22:06:57 UTC
- mto: This revision was merged to the branch mainline in revision 596.
- Revision ID: teddy@recompile.se-20120613220657-qvq7c7nrndl3t413
* plugins.d/mandos-client.c (get_flags): Don't clobber errno.
(up_interface): Removed; replaced with "interface_is_up".
(interface_is_up, interface_is_running,
lower_privileges_permanently, take_down_interface): New.
(bring_up_interface): Return "error_t". Use new functions
"interface_is_up", "get_flags", and
"interface_is_running".
(main): Save all interfaces either autodetected or specified with
--interface in argz vector "interfaces". Save interfaces to
take down on exit in argz vector "interfaces_to_take_down".
Save interface names for DEVICE variable to network hooks as
argz_vector "interfaces_hooks". Bug fix: Be privileged
while stopping network hooks.
* plugins.d/mandos-client.xml (SYNOPSIS): Changed --interface synopsis.
(DESCRIPTION): Updated to document use of all interfaces.
(OPTIONS): Updated description of "--interface".
* network-hooks.d/bridge: Parse comma-separated DEVICE environment
variable.
* network-hooks.d/openvpn: - '' -
* network-hooks.d/wireless: - '' -
(up_interface): Removed; replaced with "interface_is_up".
(interface_is_up, interface_is_running,
lower_privileges_permanently, take_down_interface): New.
(bring_up_interface): Return "error_t". Use new functions
"interface_is_up", "get_flags", and
"interface_is_running".
(main): Save all interfaces either autodetected or specified with
--interface in argz vector "interfaces". Save interfaces to
take down on exit in argz vector "interfaces_to_take_down".
Save interface names for DEVICE variable to network hooks as
argz_vector "interfaces_hooks". Bug fix: Be privileged
while stopping network hooks.
* plugins.d/mandos-client.xml (SYNOPSIS): Changed --interface synopsis.
(DESCRIPTION): Updated to document use of all interfaces.
(OPTIONS): Updated description of "--interface".
* network-hooks.d/bridge: Parse comma-separated DEVICE environment
variable.
* network-hooks.d/openvpn: - '' -
* network-hooks.d/wireless: - '' -
- files added:
- DBUS-API
- debian/source
- network-hooks.d
- files removed:
- plugins.d/plymouth
- files modified:
- .bzrignore
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
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# Everything else is
14
# Copyright © 2008,2009 Teddy Hogeborn
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# Copyright © 2008,2009 Björn Påhlsson
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# Copyright © 2008-2012 Teddy Hogeborn
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# Copyright © 2008-2012 Björn Påhlsson
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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# Contact the authors at <mandos@fukt.bsnet.se>.
31
# Contact the authors at <mandos@recompile.se>.
32
32
#
33
33
34
from __future__ import division, with_statement, absolute_import
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
37
from future_builtins import *
35
38
36
39
import SocketServer as socketserver
37
40
import socket
38
import optparse
41
import argparse
39
42
import datetime
40
43
import errno
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44
import gnutls.crypto
61
64
import functools
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import cPickle as pickle
63
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import multiprocessing
67
import types
68
import binascii
69
import tempfile
70
import itertools
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65
72
import dbus
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import dbus.service
71
78
import ctypes.util
72
79
import xml.dom.minidom
73
80
import inspect
81
import GnuPGInterface
74
82
75
83
try:
76
84
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
80
88
except ImportError:
81
89
SO_BINDTODEVICE = None
82
90
83
84
version = "1.0.14"
85
86
#logger = logging.getLogger(u'mandos')
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logger = logging.Logger(u'mandos')
91
version = "1.5.5"
92
stored_state_file = "clients.pickle"
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logger = logging.getLogger()
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syslogger = (logging.handlers.SysLogHandler
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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
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address = "/dev/log"))
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syslogger.setFormatter(logging.Formatter
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(u'Mandos [%(process)d]: %(levelname)s:'
93
u' %(message)s'))
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logger.addHandler(syslogger)
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console = logging.StreamHandler()
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console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
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u' %(levelname)s:'
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u' %(message)s'))
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logger.addHandler(console)
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address = str("/dev/log")))
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try:
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
103
except (OSError, AttributeError):
104
def if_nametoindex(interface):
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"Get an interface index the hard way, i.e. using fcntl()"
106
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
107
with contextlib.closing(socket.socket()) as s:
108
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
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struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
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ifreq[16:20])[0]
113
return interface_index
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115
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def initlogger(debug, level=logging.WARNING):
117
"""init logger and add loglevel"""
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syslogger.setFormatter(logging.Formatter
120
('Mandos [%(process)d]: %(levelname)s:'
121
' %(message)s'))
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logger.addHandler(syslogger)
123
124
if debug:
125
console = logging.StreamHandler()
126
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
127
' [%(process)d]:'
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' %(levelname)s:'
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' %(message)s'))
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logger.addHandler(console)
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logger.setLevel(level)
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133
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class PGPError(Exception):
135
"""Exception if encryption/decryption fails"""
136
pass
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class PGPEngine(object):
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
141
def __init__(self):
142
self.gnupg = GnuPGInterface.GnuPG()
143
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
144
self.gnupg = GnuPGInterface.GnuPG()
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self.gnupg.options.meta_interactive = False
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self.gnupg.options.homedir = self.tempdir
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self.gnupg.options.extra_args.extend(['--force-mdc',
148
'--quiet',
149
'--no-use-agent'])
150
151
def __enter__(self):
152
return self
153
154
def __exit__(self, exc_type, exc_value, traceback):
155
self._cleanup()
156
return False
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158
def __del__(self):
159
self._cleanup()
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161
def _cleanup(self):
162
if self.tempdir is not None:
163
# Delete contents of tempdir
164
for root, dirs, files in os.walk(self.tempdir,
165
topdown = False):
166
for filename in files:
167
os.remove(os.path.join(root, filename))
168
for dirname in dirs:
169
os.rmdir(os.path.join(root, dirname))
170
# Remove tempdir
171
os.rmdir(self.tempdir)
172
self.tempdir = None
173
174
def password_encode(self, password):
175
# Passphrase can not be empty and can not contain newlines or
176
# NUL bytes. So we prefix it and hex encode it.
177
return b"mandos" + binascii.hexlify(password)
178
179
def encrypt(self, data, password):
180
self.gnupg.passphrase = self.password_encode(password)
181
with open(os.devnull, "w") as devnull:
182
try:
183
proc = self.gnupg.run(['--symmetric'],
184
create_fhs=['stdin', 'stdout'],
185
attach_fhs={'stderr': devnull})
186
with contextlib.closing(proc.handles['stdin']) as f:
187
f.write(data)
188
with contextlib.closing(proc.handles['stdout']) as f:
189
ciphertext = f.read()
190
proc.wait()
191
except IOError as e:
192
raise PGPError(e)
193
self.gnupg.passphrase = None
194
return ciphertext
195
196
def decrypt(self, data, password):
197
self.gnupg.passphrase = self.password_encode(password)
198
with open(os.devnull, "w") as devnull:
199
try:
200
proc = self.gnupg.run(['--decrypt'],
201
create_fhs=['stdin', 'stdout'],
202
attach_fhs={'stderr': devnull})
203
with contextlib.closing(proc.handles['stdin']) as f:
204
f.write(data)
205
with contextlib.closing(proc.handles['stdout']) as f:
206
decrypted_plaintext = f.read()
207
proc.wait()
208
except IOError as e:
209
raise PGPError(e)
210
self.gnupg.passphrase = None
211
return decrypted_plaintext
212
101
213
102
214
class AvahiError(Exception):
103
215
def __init__(self, value, *args, **kwargs):
119
231
Attributes:
120
232
interface: integer; avahi.IF_UNSPEC or an interface index.
121
233
Used to optionally bind to the specified interface.
122
name: string; Example: u'Mandos'
123
type: string; Example: u'_mandos._tcp'.
234
name: string; Example: 'Mandos'
235
type: string; Example: '_mandos._tcp'.
124
236
See <http://www.dns-sd.org/ServiceTypes.html>
125
237
port: integer; what port to announce
126
238
TXT: list of strings; TXT record for the service
133
245
server: D-Bus Server
134
246
bus: dbus.SystemBus()
135
247
"""
248
136
249
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
137
250
servicetype = None, port = None, TXT = None,
138
domain = u"", host = u"", max_renames = 32768,
251
domain = "", host = "", max_renames = 32768,
139
252
protocol = avahi.PROTO_UNSPEC, bus = None):
140
253
self.interface = interface
141
254
self.name = name
150
263
self.group = None # our entry group
151
264
self.server = None
152
265
self.bus = bus
266
self.entry_group_state_changed_match = None
267
153
268
def rename(self):
154
269
"""Derived from the Avahi example code"""
155
270
if self.rename_count >= self.max_renames:
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
271
logger.critical("No suitable Zeroconf service name found"
272
" after %i retries, exiting.",
158
273
self.rename_count)
159
raise AvahiServiceError(u"Too many renames")
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
161
logger.info(u"Changing Zeroconf service name to %r ...",
274
raise AvahiServiceError("Too many renames")
275
self.name = unicode(self.server
276
.GetAlternativeServiceName(self.name))
277
logger.info("Changing Zeroconf service name to %r ...",
162
278
self.name)
163
syslogger.setFormatter(logging.Formatter
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
166
% self.name))
167
279
self.remove()
168
self.add()
280
try:
281
self.add()
282
except dbus.exceptions.DBusException as error:
283
logger.critical("D-Bus Exception", exc_info=error)
284
self.cleanup()
285
os._exit(1)
169
286
self.rename_count += 1
287
170
288
def remove(self):
171
289
"""Derived from the Avahi example code"""
290
if self.entry_group_state_changed_match is not None:
291
self.entry_group_state_changed_match.remove()
292
self.entry_group_state_changed_match = None
172
293
if self.group is not None:
173
294
self.group.Reset()
295
174
296
def add(self):
175
297
"""Derived from the Avahi example code"""
298
self.remove()
176
299
if self.group is None:
177
300
self.group = dbus.Interface(
178
301
self.bus.get_object(avahi.DBUS_NAME,
179
302
self.server.EntryGroupNew()),
180
303
avahi.DBUS_INTERFACE_ENTRY_GROUP)
181
self.group.connect_to_signal('StateChanged',
182
self
183
.entry_group_state_changed)
184
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
304
self.entry_group_state_changed_match = (
305
self.group.connect_to_signal(
306
'StateChanged', self.entry_group_state_changed))
307
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
185
308
self.name, self.type)
186
309
self.group.AddService(
187
310
self.interface,
192
315
dbus.UInt16(self.port),
193
316
avahi.string_array_to_txt_array(self.TXT))
194
317
self.group.Commit()
318
195
319
def entry_group_state_changed(self, state, error):
196
320
"""Derived from the Avahi example code"""
197
logger.debug(u"Avahi entry group state change: %i", state)
321
logger.debug("Avahi entry group state change: %i", state)
198
322
199
323
if state == avahi.ENTRY_GROUP_ESTABLISHED:
200
logger.debug(u"Zeroconf service established.")
324
logger.debug("Zeroconf service established.")
201
325
elif state == avahi.ENTRY_GROUP_COLLISION:
202
logger.warning(u"Zeroconf service name collision.")
326
logger.info("Zeroconf service name collision.")
203
327
self.rename()
204
328
elif state == avahi.ENTRY_GROUP_FAILURE:
205
logger.critical(u"Avahi: Error in group state changed %s",
329
logger.critical("Avahi: Error in group state changed %s",
206
330
unicode(error))
207
raise AvahiGroupError(u"State changed: %s"
208
% unicode(error))
331
raise AvahiGroupError("State changed: {0!s}"
332
.format(error))
333
209
334
def cleanup(self):
210
335
"""Derived from the Avahi example code"""
211
336
if self.group is not None:
212
self.group.Free()
337
try:
338
self.group.Free()
339
except (dbus.exceptions.UnknownMethodException,
340
dbus.exceptions.DBusException):
341
pass
213
342
self.group = None
214
def server_state_changed(self, state):
343
self.remove()
344
345
def server_state_changed(self, state, error=None):
215
346
"""Derived from the Avahi example code"""
216
logger.debug(u"Avahi server state change: %i", state)
217
if state == avahi.SERVER_COLLISION:
218
logger.error(u"Zeroconf server name collision")
219
self.remove()
347
logger.debug("Avahi server state change: %i", state)
348
bad_states = { avahi.SERVER_INVALID:
349
"Zeroconf server invalid",
350
avahi.SERVER_REGISTERING: None,
351
avahi.SERVER_COLLISION:
352
"Zeroconf server name collision",
353
avahi.SERVER_FAILURE:
354
"Zeroconf server failure" }
355
if state in bad_states:
356
if bad_states[state] is not None:
357
if error is None:
358
logger.error(bad_states[state])
359
else:
360
logger.error(bad_states[state] + ": %r", error)
361
self.cleanup()
220
362
elif state == avahi.SERVER_RUNNING:
221
363
self.add()
364
else:
365
if error is None:
366
logger.debug("Unknown state: %r", state)
367
else:
368
logger.debug("Unknown state: %r: %r", state, error)
369
222
370
def activate(self):
223
371
"""Derived from the Avahi example code"""
224
372
if self.server is None:
225
373
self.server = dbus.Interface(
226
374
self.bus.get_object(avahi.DBUS_NAME,
227
avahi.DBUS_PATH_SERVER),
375
avahi.DBUS_PATH_SERVER,
376
follow_name_owner_changes=True),
228
377
avahi.DBUS_INTERFACE_SERVER)
229
self.server.connect_to_signal(u"StateChanged",
378
self.server.connect_to_signal("StateChanged",
230
379
self.server_state_changed)
231
380
self.server_state_changed(self.server.GetState())
232
381
233
382
383
class AvahiServiceToSyslog(AvahiService):
384
def rename(self):
385
"""Add the new name to the syslog messages"""
386
ret = AvahiService.rename(self)
387
syslogger.setFormatter(logging.Formatter
388
('Mandos ({0}) [%(process)d]:'
389
' %(levelname)s: %(message)s'
390
.format(self.name)))
391
return ret
392
393
394
def timedelta_to_milliseconds(td):
395
"Convert a datetime.timedelta() to milliseconds"
396
return ((td.days * 24 * 60 * 60 * 1000)
397
+ (td.seconds * 1000)
398
+ (td.microseconds // 1000))
399
400
234
401
class Client(object):
235
402
"""A representation of a client host served by this server.
236
403
237
404
Attributes:
238
name: string; from the config file, used in log messages and
239
D-Bus identifiers
405
approved: bool(); 'None' if not yet approved/disapproved
406
approval_delay: datetime.timedelta(); Time to wait for approval
407
approval_duration: datetime.timedelta(); Duration of one approval
408
checker: subprocess.Popen(); a running checker process used
409
to see if the client lives.
410
'None' if no process is running.
411
checker_callback_tag: a gobject event source tag, or None
412
checker_command: string; External command which is run to check
413
if client lives. %() expansions are done at
414
runtime with vars(self) as dict, so that for
415
instance %(name)s can be used in the command.
416
checker_initiator_tag: a gobject event source tag, or None
417
created: datetime.datetime(); (UTC) object creation
418
client_structure: Object describing what attributes a client has
419
and is used for storing the client at exit
420
current_checker_command: string; current running checker_command
421
disable_initiator_tag: a gobject event source tag, or None
422
enabled: bool()
240
423
fingerprint: string (40 or 32 hexadecimal digits); used to
241
424
uniquely identify the client
242
secret: bytestring; sent verbatim (over TLS) to client
243
425
host: string; available for use by the checker command
244
created: datetime.datetime(); (UTC) object creation
245
last_enabled: datetime.datetime(); (UTC)
246
enabled: bool()
426
interval: datetime.timedelta(); How often to start a new checker
427
last_approval_request: datetime.datetime(); (UTC) or None
247
428
last_checked_ok: datetime.datetime(); (UTC) or None
429
last_checker_status: integer between 0 and 255 reflecting exit
430
status of last checker. -1 reflects crashed
431
checker, -2 means no checker completed yet.
432
last_enabled: datetime.datetime(); (UTC) or None
433
name: string; from the config file, used in log messages and
434
D-Bus identifiers
435
secret: bytestring; sent verbatim (over TLS) to client
248
436
timeout: datetime.timedelta(); How long from last_checked_ok
249
437
until this client is disabled
250
interval: datetime.timedelta(); How often to start a new checker
251
disable_hook: If set, called by disable() as disable_hook(self)
252
checker: subprocess.Popen(); a running checker process used
253
to see if the client lives.
254
'None' if no process is running.
255
checker_initiator_tag: a gobject event source tag, or None
256
disable_initiator_tag: - '' -
257
checker_callback_tag: - '' -
258
checker_command: string; External command which is run to check if
259
client lives. %() expansions are done at
260
runtime with vars(self) as dict, so that for
261
instance %(name)s can be used in the command.
262
current_checker_command: string; current running checker_command
263
approved_delay: datetime.timedelta(); Time to wait for approval
264
_approved: bool(); 'None' if not yet approved/disapproved
265
approved_duration: datetime.timedelta(); Duration of one approval
438
extended_timeout: extra long timeout when secret has been sent
439
runtime_expansions: Allowed attributes for runtime expansion.
440
expires: datetime.datetime(); time (UTC) when a client will be
441
disabled, or None
266
442
"""
267
443
268
@staticmethod
269
def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
444
runtime_expansions = ("approval_delay", "approval_duration",
445
"created", "enabled", "expires",
446
"fingerprint", "host", "interval",
447
"last_approval_request", "last_checked_ok",
448
"last_enabled", "name", "timeout")
449
client_defaults = { "timeout": "5m",
450
"extended_timeout": "15m",
451
"interval": "2m",
452
"checker": "fping -q -- %%(host)s",
453
"host": "",
454
"approval_delay": "0s",
455
"approval_duration": "1s",
456
"approved_by_default": "True",
457
"enabled": "True",
458
}
274
459
275
460
def timeout_milliseconds(self):
276
461
"Return the 'timeout' attribute in milliseconds"
277
return self._timedelta_to_milliseconds(self.timeout)
462
return timedelta_to_milliseconds(self.timeout)
463
464
def extended_timeout_milliseconds(self):
465
"Return the 'extended_timeout' attribute in milliseconds"
466
return timedelta_to_milliseconds(self.extended_timeout)
278
467
279
468
def interval_milliseconds(self):
280
469
"Return the 'interval' attribute in milliseconds"
281
return self._timedelta_to_milliseconds(self.interval)
282
283
def approved_delay_milliseconds(self):
284
return self._timedelta_to_milliseconds(self.approved_delay)
285
286
def __init__(self, name = None, disable_hook=None, config=None):
287
"""Note: the 'checker' key in 'config' sets the
288
'checker_command' attribute and *not* the 'checker'
289
attribute."""
470
return timedelta_to_milliseconds(self.interval)
471
472
def approval_delay_milliseconds(self):
473
return timedelta_to_milliseconds(self.approval_delay)
474
475
@staticmethod
476
def config_parser(config):
477
"""Construct a new dict of client settings of this form:
478
{ client_name: {setting_name: value, ...}, ...}
479
with exceptions for any special settings as defined above.
480
NOTE: Must be a pure function. Must return the same result
481
value given the same arguments.
482
"""
483
settings = {}
484
for client_name in config.sections():
485
section = dict(config.items(client_name))
486
client = settings[client_name] = {}
487
488
client["host"] = section["host"]
489
# Reformat values from string types to Python types
490
client["approved_by_default"] = config.getboolean(
491
client_name, "approved_by_default")
492
client["enabled"] = config.getboolean(client_name,
493
"enabled")
494
495
client["fingerprint"] = (section["fingerprint"].upper()
496
.replace(" ", ""))
497
if "secret" in section:
498
client["secret"] = section["secret"].decode("base64")
499
elif "secfile" in section:
500
with open(os.path.expanduser(os.path.expandvars
501
(section["secfile"])),
502
"rb") as secfile:
503
client["secret"] = secfile.read()
504
else:
505
raise TypeError("No secret or secfile for section {0}"
506
.format(section))
507
client["timeout"] = string_to_delta(section["timeout"])
508
client["extended_timeout"] = string_to_delta(
509
section["extended_timeout"])
510
client["interval"] = string_to_delta(section["interval"])
511
client["approval_delay"] = string_to_delta(
512
section["approval_delay"])
513
client["approval_duration"] = string_to_delta(
514
section["approval_duration"])
515
client["checker_command"] = section["checker"]
516
client["last_approval_request"] = None
517
client["last_checked_ok"] = None
518
client["last_checker_status"] = -2
519
520
return settings
521
522
def __init__(self, settings, name = None):
290
523
self.name = name
291
if config is None:
292
config = {}
293
logger.debug(u"Creating client %r", self.name)
524
# adding all client settings
525
for setting, value in settings.iteritems():
526
setattr(self, setting, value)
527
528
if self.enabled:
529
if not hasattr(self, "last_enabled"):
530
self.last_enabled = datetime.datetime.utcnow()
531
if not hasattr(self, "expires"):
532
self.expires = (datetime.datetime.utcnow()
533
+ self.timeout)
534
else:
535
self.last_enabled = None
536
self.expires = None
537
538
logger.debug("Creating client %r", self.name)
294
539
# Uppercase and remove spaces from fingerprint for later
295
540
# comparison purposes with return value from the fingerprint()
296
541
# function
297
self.fingerprint = (config[u"fingerprint"].upper()
298
.replace(u" ", u""))
299
logger.debug(u" Fingerprint: %s", self.fingerprint)
300
if u"secret" in config:
301
self.secret = config[u"secret"].decode(u"base64")
302
elif u"secfile" in config:
303
with open(os.path.expanduser(os.path.expandvars
304
(config[u"secfile"])),
305
"rb") as secfile:
306
self.secret = secfile.read()
307
else:
308
raise TypeError(u"No secret or secfile for client %s"
309
% self.name)
310
self.host = config.get(u"host", u"")
311
self.created = datetime.datetime.utcnow()
312
self.enabled = False
313
self.last_enabled = None
314
self.last_checked_ok = None
315
self.timeout = string_to_delta(config[u"timeout"])
316
self.interval = string_to_delta(config[u"interval"])
317
self.disable_hook = disable_hook
542
logger.debug(" Fingerprint: %s", self.fingerprint)
543
self.created = settings.get("created",
544
datetime.datetime.utcnow())
545
546
# attributes specific for this server instance
318
547
self.checker = None
319
548
self.checker_initiator_tag = None
320
549
self.disable_initiator_tag = None
321
550
self.checker_callback_tag = None
322
self.checker_command = config[u"checker"]
323
551
self.current_checker_command = None
324
self.last_connect = None
325
self._approved = None
326
self.approved_by_default = config.get(u"approved_by_default",
327
True)
552
self.approved = None
328
553
self.approvals_pending = 0
329
self.approved_delay = string_to_delta(
330
config[u"approved_delay"])
331
self.approved_duration = string_to_delta(
332
config[u"approved_duration"])
333
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
554
self.changedstate = (multiprocessing_manager
555
.Condition(multiprocessing_manager
556
.Lock()))
557
self.client_structure = [attr for attr in
558
self.__dict__.iterkeys()
559
if not attr.startswith("_")]
560
self.client_structure.append("client_structure")
561
562
for name, t in inspect.getmembers(type(self),
563
lambda obj:
564
isinstance(obj,
565
property)):
566
if not name.startswith("_"):
567
self.client_structure.append(name)
334
568
569
# Send notice to process children that client state has changed
335
570
def send_changedstate(self):
336
self.changedstate.acquire()
337
self.changedstate.notify_all()
338
self.changedstate.release()
339
571
with self.changedstate:
572
self.changedstate.notify_all()
573
340
574
def enable(self):
341
575
"""Start this client's checker and timeout hooks"""
342
if getattr(self, u"enabled", False):
576
if getattr(self, "enabled", False):
343
577
# Already enabled
344
578
return
345
self.send_changedstate()
579
self.expires = datetime.datetime.utcnow() + self.timeout
580
self.enabled = True
346
581
self.last_enabled = datetime.datetime.utcnow()
582
self.init_checker()
583
self.send_changedstate()
584
585
def disable(self, quiet=True):
586
"""Disable this client."""
587
if not getattr(self, "enabled", False):
588
return False
589
if not quiet:
590
logger.info("Disabling client %s", self.name)
591
if getattr(self, "disable_initiator_tag", None) is not None:
592
gobject.source_remove(self.disable_initiator_tag)
593
self.disable_initiator_tag = None
594
self.expires = None
595
if getattr(self, "checker_initiator_tag", None) is not None:
596
gobject.source_remove(self.checker_initiator_tag)
597
self.checker_initiator_tag = None
598
self.stop_checker()
599
self.enabled = False
600
if not quiet:
601
self.send_changedstate()
602
# Do not run this again if called by a gobject.timeout_add
603
return False
604
605
def __del__(self):
606
self.disable()
607
608
def init_checker(self):
347
609
# Schedule a new checker to be started an 'interval' from now,
348
610
# and every interval from then on.
611
if self.checker_initiator_tag is not None:
612
gobject.source_remove(self.checker_initiator_tag)
349
613
self.checker_initiator_tag = (gobject.timeout_add
350
614
(self.interval_milliseconds(),
351
615
self.start_checker))
352
616
# Schedule a disable() when 'timeout' has passed
617
if self.disable_initiator_tag is not None:
618
gobject.source_remove(self.disable_initiator_tag)
353
619
self.disable_initiator_tag = (gobject.timeout_add
354
620
(self.timeout_milliseconds(),
355
621
self.disable))
356
self.enabled = True
357
622
# Also start a new checker *right now*.
358
623
self.start_checker()
359
624
360
def disable(self, quiet=True):
361
"""Disable this client."""
362
if not getattr(self, "enabled", False):
363
return False
364
if not quiet:
365
self.send_changedstate()
366
if not quiet:
367
logger.info(u"Disabling client %s", self.name)
368
if getattr(self, u"disable_initiator_tag", False):
369
gobject.source_remove(self.disable_initiator_tag)
370
self.disable_initiator_tag = None
371
if getattr(self, u"checker_initiator_tag", False):
372
gobject.source_remove(self.checker_initiator_tag)
373
self.checker_initiator_tag = None
374
self.stop_checker()
375
if self.disable_hook:
376
self.disable_hook(self)
377
self.enabled = False
378
# Do not run this again if called by a gobject.timeout_add
379
return False
380
381
def __del__(self):
382
self.disable_hook = None
383
self.disable()
384
385
625
def checker_callback(self, pid, condition, command):
386
626
"""The checker has completed, so take appropriate actions."""
387
627
self.checker_callback_tag = None
388
628
self.checker = None
389
629
if os.WIFEXITED(condition):
390
exitstatus = os.WEXITSTATUS(condition)
391
if exitstatus == 0:
392
logger.info(u"Checker for %(name)s succeeded",
630
self.last_checker_status = os.WEXITSTATUS(condition)
631
if self.last_checker_status == 0:
632
logger.info("Checker for %(name)s succeeded",
393
633
vars(self))
394
634
self.checked_ok()
395
635
else:
396
logger.info(u"Checker for %(name)s failed",
636
logger.info("Checker for %(name)s failed",
397
637
vars(self))
398
638
else:
399
logger.warning(u"Checker for %(name)s crashed?",
639
self.last_checker_status = -1
640
logger.warning("Checker for %(name)s crashed?",
400
641
vars(self))
401
642
402
643
def checked_ok(self):
403
"""Bump up the timeout for this client.
404
405
This should only be called when the client has been seen,
406
alive and well.
407
"""
644
"""Assert that the client has been seen, alive and well."""
408
645
self.last_checked_ok = datetime.datetime.utcnow()
409
gobject.source_remove(self.disable_initiator_tag)
410
self.disable_initiator_tag = (gobject.timeout_add
411
(self.timeout_milliseconds(),
412
self.disable))
646
self.last_checker_status = 0
647
self.bump_timeout()
648
649
def bump_timeout(self, timeout=None):
650
"""Bump up the timeout for this client."""
651
if timeout is None:
652
timeout = self.timeout
653
if self.disable_initiator_tag is not None:
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = None
656
if getattr(self, "enabled", False):
657
self.disable_initiator_tag = (gobject.timeout_add
658
(timedelta_to_milliseconds
659
(timeout), self.disable))
660
self.expires = datetime.datetime.utcnow() + timeout
661
662
def need_approval(self):
663
self.last_approval_request = datetime.datetime.utcnow()
413
664
414
665
def start_checker(self):
415
666
"""Start a new checker subprocess if one is not running.
417
668
If a checker already exists, leave it running and do
418
669
nothing."""
419
670
# The reason for not killing a running checker is that if we
420
# did that, then if a checker (for some reason) started
421
# running slowly and taking more than 'interval' time, the
422
# client would inevitably timeout, since no checker would get
423
# a chance to run to completion. If we instead leave running
671
# did that, and if a checker (for some reason) started running
672
# slowly and taking more than 'interval' time, then the client
673
# would inevitably timeout, since no checker would get a
674
# chance to run to completion. If we instead leave running
424
675
# checkers alone, the checker would have to take more time
425
676
# than 'timeout' for the client to be disabled, which is as it
426
677
# should be.
428
679
# If a checker exists, make sure it is not a zombie
429
680
try:
430
681
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
431
except (AttributeError, OSError), error:
682
except (AttributeError, OSError) as error:
432
683
if (isinstance(error, OSError)
433
684
and error.errno != errno.ECHILD):
434
685
raise error
435
686
else:
436
687
if pid:
437
logger.warning(u"Checker was a zombie")
688
logger.warning("Checker was a zombie")
438
689
gobject.source_remove(self.checker_callback_tag)
439
690
self.checker_callback(pid, status,
440
691
self.current_checker_command)
441
692
# Start a new checker if needed
442
693
if self.checker is None:
694
# Escape attributes for the shell
695
escaped_attrs = dict(
696
(attr, re.escape(unicode(getattr(self, attr))))
697
for attr in
698
self.runtime_expansions)
443
699
try:
444
# In case checker_command has exactly one % operator
445
command = self.checker_command % self.host
446
except TypeError:
447
# Escape attributes for the shell
448
escaped_attrs = dict((key,
449
re.escape(unicode(str(val),
450
errors=
451
u'replace')))
452
for key, val in
453
vars(self).iteritems())
454
try:
455
command = self.checker_command % escaped_attrs
456
except TypeError, error:
457
logger.error(u'Could not format string "%s":'
458
u' %s', self.checker_command, error)
459
return True # Try again later
700
command = self.checker_command % escaped_attrs
701
except TypeError as error:
702
logger.error('Could not format string "%s"',
703
self.checker_command, exc_info=error)
704
return True # Try again later
460
705
self.current_checker_command = command
461
706
try:
462
logger.info(u"Starting checker %r for %s",
707
logger.info("Starting checker %r for %s",
463
708
command, self.name)
464
709
# We don't need to redirect stdout and stderr, since
465
710
# in normal mode, that is already done by daemon(),
467
712
# always replaced by /dev/null.)
468
713
self.checker = subprocess.Popen(command,
469
714
close_fds=True,
470
shell=True, cwd=u"/")
471
self.checker_callback_tag = (gobject.child_watch_add
472
(self.checker.pid,
473
self.checker_callback,
474
data=command))
475
# The checker may have completed before the gobject
476
# watch was added. Check for this.
477
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
478
if pid:
479
gobject.source_remove(self.checker_callback_tag)
480
self.checker_callback(pid, status, command)
481
except OSError, error:
482
logger.error(u"Failed to start subprocess: %s",
483
error)
715
shell=True, cwd="/")
716
except OSError as error:
717
logger.error("Failed to start subprocess",
718
exc_info=error)
719
self.checker_callback_tag = (gobject.child_watch_add
720
(self.checker.pid,
721
self.checker_callback,
722
data=command))
723
# The checker may have completed before the gobject
724
# watch was added. Check for this.
725
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
726
if pid:
727
gobject.source_remove(self.checker_callback_tag)
728
self.checker_callback(pid, status, command)
484
729
# Re-run this periodically if run by gobject.timeout_add
485
730
return True
486
731
489
734
if self.checker_callback_tag:
490
735
gobject.source_remove(self.checker_callback_tag)
491
736
self.checker_callback_tag = None
492
if getattr(self, u"checker", None) is None:
737
if getattr(self, "checker", None) is None:
493
738
return
494
logger.debug(u"Stopping checker for %(name)s", vars(self))
739
logger.debug("Stopping checker for %(name)s", vars(self))
495
740
try:
496
os.kill(self.checker.pid, signal.SIGTERM)
741
self.checker.terminate()
497
742
#time.sleep(0.5)
498
743
#if self.checker.poll() is None:
499
# os.kill(self.checker.pid, signal.SIGKILL)
500
except OSError, error:
744
# self.checker.kill()
745
except OSError as error:
501
746
if error.errno != errno.ESRCH: # No such process
502
747
raise
503
748
self.checker = None
504
749
505
def dbus_service_property(dbus_interface, signature=u"v",
506
access=u"readwrite", byte_arrays=False):
750
751
def dbus_service_property(dbus_interface, signature="v",
752
access="readwrite", byte_arrays=False):
507
753
"""Decorators for marking methods of a DBusObjectWithProperties to
508
754
become properties on the D-Bus.
509
755
516
762
"""
517
763
# Encoding deeply encoded byte arrays is not supported yet by the
518
764
# "Set" method, so we fail early here:
519
if byte_arrays and signature != u"ay":
520
raise ValueError(u"Byte arrays not supported for non-'ay'"
521
u" signature %r" % signature)
765
if byte_arrays and signature != "ay":
766
raise ValueError("Byte arrays not supported for non-'ay'"
767
" signature {0!r}".format(signature))
522
768
def decorator(func):
523
769
func._dbus_is_property = True
524
770
func._dbus_interface = dbus_interface
525
771
func._dbus_signature = signature
526
772
func._dbus_access = access
527
773
func._dbus_name = func.__name__
528
if func._dbus_name.endswith(u"_dbus_property"):
774
if func._dbus_name.endswith("_dbus_property"):
529
775
func._dbus_name = func._dbus_name[:-14]
530
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
776
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
777
return func
778
return decorator
779
780
781
def dbus_interface_annotations(dbus_interface):
782
"""Decorator for marking functions returning interface annotations
783
784
Usage:
785
786
@dbus_interface_annotations("org.example.Interface")
787
def _foo(self): # Function name does not matter
788
return {"org.freedesktop.DBus.Deprecated": "true",
789
"org.freedesktop.DBus.Property.EmitsChangedSignal":
790
"false"}
791
"""
792
def decorator(func):
793
func._dbus_is_interface = True
794
func._dbus_interface = dbus_interface
795
func._dbus_name = dbus_interface
796
return func
797
return decorator
798
799
800
def dbus_annotations(annotations):
801
"""Decorator to annotate D-Bus methods, signals or properties
802
Usage:
803
804
@dbus_service_property("org.example.Interface", signature="b",
805
access="r")
806
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
807
"org.freedesktop.DBus.Property."
808
"EmitsChangedSignal": "false"})
809
def Property_dbus_property(self):
810
return dbus.Boolean(False)
811
"""
812
def decorator(func):
813
func._dbus_annotations = annotations
531
814
return func
532
815
return decorator
533
816
553
836
554
837
class DBusObjectWithProperties(dbus.service.Object):
555
838
"""A D-Bus object with properties.
556
839
557
840
Classes inheriting from this can use the dbus_service_property
558
841
decorator to expose methods as D-Bus properties. It exposes the
559
842
standard Get(), Set(), and GetAll() methods on the D-Bus.
560
843
"""
561
844
562
845
@staticmethod
563
def _is_dbus_property(obj):
564
return getattr(obj, u"_dbus_is_property", False)
846
def _is_dbus_thing(thing):
847
"""Returns a function testing if an attribute is a D-Bus thing
848
849
If called like _is_dbus_thing("method") it returns a function
850
suitable for use as predicate to inspect.getmembers().
851
"""
852
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
853
False)
565
854
566
def _get_all_dbus_properties(self):
855
def _get_all_dbus_things(self, thing):
567
856
"""Returns a generator of (name, attribute) pairs
568
857
"""
569
return ((prop._dbus_name, prop)
570
for name, prop in
571
inspect.getmembers(self, self._is_dbus_property))
858
return ((getattr(athing.__get__(self), "_dbus_name",
859
name),
860
athing.__get__(self))
861
for cls in self.__class__.__mro__
862
for name, athing in
863
inspect.getmembers(cls,
864
self._is_dbus_thing(thing)))
572
865
573
866
def _get_dbus_property(self, interface_name, property_name):
574
867
"""Returns a bound method if one exists which is a D-Bus
575
868
property with the specified name and interface.
576
869
"""
577
for name in (property_name,
578
property_name + u"_dbus_property"):
579
prop = getattr(self, name, None)
580
if (prop is None
581
or not self._is_dbus_property(prop)
582
or prop._dbus_name != property_name
583
or (interface_name and prop._dbus_interface
584
and interface_name != prop._dbus_interface)):
585
continue
586
return prop
870
for cls in self.__class__.__mro__:
871
for name, value in (inspect.getmembers
872
(cls,
873
self._is_dbus_thing("property"))):
874
if (value._dbus_name == property_name
875
and value._dbus_interface == interface_name):
876
return value.__get__(self)
877
587
878
# No such property
588
raise DBusPropertyNotFound(self.dbus_object_path + u":"
589
+ interface_name + u"."
879
raise DBusPropertyNotFound(self.dbus_object_path + ":"
880
+ interface_name + "."
590
881
+ property_name)
591
882
592
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
593
out_signature=u"v")
883
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
884
out_signature="v")
594
885
def Get(self, interface_name, property_name):
595
886
"""Standard D-Bus property Get() method, see D-Bus standard.
596
887
"""
597
888
prop = self._get_dbus_property(interface_name, property_name)
598
if prop._dbus_access == u"write":
889
if prop._dbus_access == "write":
599
890
raise DBusPropertyAccessException(property_name)
600
891
value = prop()
601
if not hasattr(value, u"variant_level"):
892
if not hasattr(value, "variant_level"):
602
893
return value
603
894
return type(value)(value, variant_level=value.variant_level+1)
604
895
605
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
896
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
606
897
def Set(self, interface_name, property_name, value):
607
898
"""Standard D-Bus property Set() method, see D-Bus standard.
608
899
"""
609
900
prop = self._get_dbus_property(interface_name, property_name)
610
if prop._dbus_access == u"read":
901
if prop._dbus_access == "read":
611
902
raise DBusPropertyAccessException(property_name)
612
if prop._dbus_get_args_options[u"byte_arrays"]:
903
if prop._dbus_get_args_options["byte_arrays"]:
613
904
# The byte_arrays option is not supported yet on
614
905
# signatures other than "ay".
615
if prop._dbus_signature != u"ay":
906
if prop._dbus_signature != "ay":
616
907
raise ValueError
617
value = dbus.ByteArray(''.join(unichr(byte)
618
for byte in value))
908
value = dbus.ByteArray(b''.join(chr(byte)
909
for byte in value))
619
910
prop(value)
620
911
621
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
622
out_signature=u"a{sv}")
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
913
out_signature="a{sv}")
623
914
def GetAll(self, interface_name):
624
915
"""Standard D-Bus property GetAll() method, see D-Bus
625
916
standard.
626
917
627
918
Note: Will not include properties with access="write".
628
919
"""
629
all = {}
630
for name, prop in self._get_all_dbus_properties():
920
properties = {}
921
for name, prop in self._get_all_dbus_things("property"):
631
922
if (interface_name
632
923
and interface_name != prop._dbus_interface):
633
924
# Interface non-empty but did not match
634
925
continue
635
926
# Ignore write-only properties
636
if prop._dbus_access == u"write":
927
if prop._dbus_access == "write":
637
928
continue
638
929
value = prop()
639
if not hasattr(value, u"variant_level"):
640
all[name] = value
930
if not hasattr(value, "variant_level"):
931
properties[name] = value
641
932
continue
642
all[name] = type(value)(value, variant_level=
643
value.variant_level+1)
644
return dbus.Dictionary(all, signature=u"sv")
933
properties[name] = type(value)(value, variant_level=
934
value.variant_level+1)
935
return dbus.Dictionary(properties, signature="sv")
645
936
646
937
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
647
out_signature=u"s",
938
out_signature="s",
648
939
path_keyword='object_path',
649
940
connection_keyword='connection')
650
941
def Introspect(self, object_path, connection):
651
"""Standard D-Bus method, overloaded to insert property tags.
942
"""Overloading of standard D-Bus method.
943
944
Inserts property tags and interface annotation tags.
652
945
"""
653
946
xmlstring = dbus.service.Object.Introspect(self, object_path,
654
947
connection)
655
948
try:
656
949
document = xml.dom.minidom.parseString(xmlstring)
657
950
def make_tag(document, name, prop):
658
e = document.createElement(u"property")
659
e.setAttribute(u"name", name)
660
e.setAttribute(u"type", prop._dbus_signature)
661
e.setAttribute(u"access", prop._dbus_access)
951
e = document.createElement("property")
952
e.setAttribute("name", name)
953
e.setAttribute("type", prop._dbus_signature)
954
e.setAttribute("access", prop._dbus_access)
662
955
return e
663
for if_tag in document.getElementsByTagName(u"interface"):
956
for if_tag in document.getElementsByTagName("interface"):
957
# Add property tags
664
958
for tag in (make_tag(document, name, prop)
665
959
for name, prop
666
in self._get_all_dbus_properties()
960
in self._get_all_dbus_things("property")
667
961
if prop._dbus_interface
668
== if_tag.getAttribute(u"name")):
962
== if_tag.getAttribute("name")):
669
963
if_tag.appendChild(tag)
964
# Add annotation tags
965
for typ in ("method", "signal", "property"):
966
for tag in if_tag.getElementsByTagName(typ):
967
annots = dict()
968
for name, prop in (self.
969
_get_all_dbus_things(typ)):
970
if (name == tag.getAttribute("name")
971
and prop._dbus_interface
972
== if_tag.getAttribute("name")):
973
annots.update(getattr
974
(prop,
975
"_dbus_annotations",
976
{}))
977
for name, value in annots.iteritems():
978
ann_tag = document.createElement(
979
"annotation")
980
ann_tag.setAttribute("name", name)
981
ann_tag.setAttribute("value", value)
982
tag.appendChild(ann_tag)
983
# Add interface annotation tags
984
for annotation, value in dict(
985
itertools.chain.from_iterable(
986
annotations().iteritems()
987
for name, annotations in
988
self._get_all_dbus_things("interface")
989
if name == if_tag.getAttribute("name")
990
)).iteritems():
991
ann_tag = document.createElement("annotation")
992
ann_tag.setAttribute("name", annotation)
993
ann_tag.setAttribute("value", value)
994
if_tag.appendChild(ann_tag)
670
995
# Add the names to the return values for the
671
996
# "org.freedesktop.DBus.Properties" methods
672
if (if_tag.getAttribute(u"name")
673
== u"org.freedesktop.DBus.Properties"):
674
for cn in if_tag.getElementsByTagName(u"method"):
675
if cn.getAttribute(u"name") == u"Get":
676
for arg in cn.getElementsByTagName(u"arg"):
677
if (arg.getAttribute(u"direction")
678
== u"out"):
679
arg.setAttribute(u"name", u"value")
680
elif cn.getAttribute(u"name") == u"GetAll":
681
for arg in cn.getElementsByTagName(u"arg"):
682
if (arg.getAttribute(u"direction")
683
== u"out"):
684
arg.setAttribute(u"name", u"props")
685
xmlstring = document.toxml(u"utf-8")
997
if (if_tag.getAttribute("name")
998
== "org.freedesktop.DBus.Properties"):
999
for cn in if_tag.getElementsByTagName("method"):
1000
if cn.getAttribute("name") == "Get":
1001
for arg in cn.getElementsByTagName("arg"):
1002
if (arg.getAttribute("direction")
1003
== "out"):
1004
arg.setAttribute("name", "value")
1005
elif cn.getAttribute("name") == "GetAll":
1006
for arg in cn.getElementsByTagName("arg"):
1007
if (arg.getAttribute("direction")
1008
== "out"):
1009
arg.setAttribute("name", "props")
1010
xmlstring = document.toxml("utf-8")
686
1011
document.unlink()
687
1012
except (AttributeError, xml.dom.DOMException,
688
xml.parsers.expat.ExpatError), error:
689
logger.error(u"Failed to override Introspection method",
690
error)
1013
xml.parsers.expat.ExpatError) as error:
1014
logger.error("Failed to override Introspection method",
1015
exc_info=error)
691
1016
return xmlstring
692
1017
693
1018
1019
def datetime_to_dbus(dt, variant_level=0):
1020
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1021
if dt is None:
1022
return dbus.String("", variant_level = variant_level)
1023
return dbus.String(dt.isoformat(),
1024
variant_level=variant_level)
1025
1026
1027
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1028
"""A class decorator; applied to a subclass of
1029
dbus.service.Object, it will add alternate D-Bus attributes with
1030
interface names according to the "alt_interface_names" mapping.
1031
Usage:
1032
1033
@alternate_dbus_interfaces({"org.example.Interface":
1034
"net.example.AlternateInterface"})
1035
class SampleDBusObject(dbus.service.Object):
1036
@dbus.service.method("org.example.Interface")
1037
def SampleDBusMethod():
1038
pass
1039
1040
The above "SampleDBusMethod" on "SampleDBusObject" will be
1041
reachable via two interfaces: "org.example.Interface" and
1042
"net.example.AlternateInterface", the latter of which will have
1043
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1044
"true", unless "deprecate" is passed with a False value.
1045
1046
This works for methods and signals, and also for D-Bus properties
1047
(from DBusObjectWithProperties) and interfaces (from the
1048
dbus_interface_annotations decorator).
1049
"""
1050
def wrapper(cls):
1051
for orig_interface_name, alt_interface_name in (
1052
alt_interface_names.iteritems()):
1053
attr = {}
1054
interface_names = set()
1055
# Go though all attributes of the class
1056
for attrname, attribute in inspect.getmembers(cls):
1057
# Ignore non-D-Bus attributes, and D-Bus attributes
1058
# with the wrong interface name
1059
if (not hasattr(attribute, "_dbus_interface")
1060
or not attribute._dbus_interface
1061
.startswith(orig_interface_name)):
1062
continue
1063
# Create an alternate D-Bus interface name based on
1064
# the current name
1065
alt_interface = (attribute._dbus_interface
1066
.replace(orig_interface_name,
1067
alt_interface_name))
1068
interface_names.add(alt_interface)
1069
# Is this a D-Bus signal?
1070
if getattr(attribute, "_dbus_is_signal", False):
1071
# Extract the original non-method function by
1072
# black magic
1073
nonmethod_func = (dict(
1074
zip(attribute.func_code.co_freevars,
1075
attribute.__closure__))["func"]
1076
.cell_contents)
1077
# Create a new, but exactly alike, function
1078
# object, and decorate it to be a new D-Bus signal
1079
# with the alternate D-Bus interface name
1080
new_function = (dbus.service.signal
1081
(alt_interface,
1082
attribute._dbus_signature)
1083
(types.FunctionType(
1084
nonmethod_func.func_code,
1085
nonmethod_func.func_globals,
1086
nonmethod_func.func_name,
1087
nonmethod_func.func_defaults,
1088
nonmethod_func.func_closure)))
1089
# Copy annotations, if any
1090
try:
1091
new_function._dbus_annotations = (
1092
dict(attribute._dbus_annotations))
1093
except AttributeError:
1094
pass
1095
# Define a creator of a function to call both the
1096
# original and alternate functions, so both the
1097
# original and alternate signals gets sent when
1098
# the function is called
1099
def fixscope(func1, func2):
1100
"""This function is a scope container to pass
1101
func1 and func2 to the "call_both" function
1102
outside of its arguments"""
1103
def call_both(*args, **kwargs):
1104
"""This function will emit two D-Bus
1105
signals by calling func1 and func2"""
1106
func1(*args, **kwargs)
1107
func2(*args, **kwargs)
1108
return call_both
1109
# Create the "call_both" function and add it to
1110
# the class
1111
attr[attrname] = fixscope(attribute, new_function)
1112
# Is this a D-Bus method?
1113
elif getattr(attribute, "_dbus_is_method", False):
1114
# Create a new, but exactly alike, function
1115
# object. Decorate it to be a new D-Bus method
1116
# with the alternate D-Bus interface name. Add it
1117
# to the class.
1118
attr[attrname] = (dbus.service.method
1119
(alt_interface,
1120
attribute._dbus_in_signature,
1121
attribute._dbus_out_signature)
1122
(types.FunctionType
1123
(attribute.func_code,
1124
attribute.func_globals,
1125
attribute.func_name,
1126
attribute.func_defaults,
1127
attribute.func_closure)))
1128
# Copy annotations, if any
1129
try:
1130
attr[attrname]._dbus_annotations = (
1131
dict(attribute._dbus_annotations))
1132
except AttributeError:
1133
pass
1134
# Is this a D-Bus property?
1135
elif getattr(attribute, "_dbus_is_property", False):
1136
# Create a new, but exactly alike, function
1137
# object, and decorate it to be a new D-Bus
1138
# property with the alternate D-Bus interface
1139
# name. Add it to the class.
1140
attr[attrname] = (dbus_service_property
1141
(alt_interface,
1142
attribute._dbus_signature,
1143
attribute._dbus_access,
1144
attribute
1145
._dbus_get_args_options
1146
["byte_arrays"])
1147
(types.FunctionType
1148
(attribute.func_code,
1149
attribute.func_globals,
1150
attribute.func_name,
1151
attribute.func_defaults,
1152
attribute.func_closure)))
1153
# Copy annotations, if any
1154
try:
1155
attr[attrname]._dbus_annotations = (
1156
dict(attribute._dbus_annotations))
1157
except AttributeError:
1158
pass
1159
# Is this a D-Bus interface?
1160
elif getattr(attribute, "_dbus_is_interface", False):
1161
# Create a new, but exactly alike, function
1162
# object. Decorate it to be a new D-Bus interface
1163
# with the alternate D-Bus interface name. Add it
1164
# to the class.
1165
attr[attrname] = (dbus_interface_annotations
1166
(alt_interface)
1167
(types.FunctionType
1168
(attribute.func_code,
1169
attribute.func_globals,
1170
attribute.func_name,
1171
attribute.func_defaults,
1172
attribute.func_closure)))
1173
if deprecate:
1174
# Deprecate all alternate interfaces
1175
iname="_AlternateDBusNames_interface_annotation{0}"
1176
for interface_name in interface_names:
1177
@dbus_interface_annotations(interface_name)
1178
def func(self):
1179
return { "org.freedesktop.DBus.Deprecated":
1180
"true" }
1181
# Find an unused name
1182
for aname in (iname.format(i)
1183
for i in itertools.count()):
1184
if aname not in attr:
1185
attr[aname] = func
1186
break
1187
if interface_names:
1188
# Replace the class with a new subclass of it with
1189
# methods, signals, etc. as created above.
1190
cls = type(b"{0}Alternate".format(cls.__name__),
1191
(cls,), attr)
1192
return cls
1193
return wrapper
1194
1195
1196
@alternate_dbus_interfaces({"se.recompile.Mandos":
1197
"se.bsnet.fukt.Mandos"})
694
1198
class ClientDBus(Client, DBusObjectWithProperties):
695
1199
"""A Client class using D-Bus
696
1200
698
1202
dbus_object_path: dbus.ObjectPath
699
1203
bus: dbus.SystemBus()
700
1204
"""
1205
1206
runtime_expansions = (Client.runtime_expansions
1207
+ ("dbus_object_path",))
1208
701
1209
# dbus.service.Object doesn't use super(), so we can't either.
702
1210
703
1211
def __init__(self, bus = None, *args, **kwargs):
704
self._approvals_pending = 0
705
1212
self.bus = bus
706
1213
Client.__init__(self, *args, **kwargs)
707
1214
# Only now, when this client is initialized, can it show up on
708
1215
# the D-Bus
1216
client_object_name = unicode(self.name).translate(
1217
{ord("."): ord("_"),
1218
ord("-"): ord("_")})
709
1219
self.dbus_object_path = (dbus.ObjectPath
710
(u"/clients/"
711
+ self.name.replace(u".", u"_")))
1220
("/clients/" + client_object_name))
712
1221
DBusObjectWithProperties.__init__(self, self.bus,
713
1222
self.dbus_object_path)
714
715
def _get_approvals_pending(self):
716
return self._approvals_pending
717
def _set_approvals_pending(self, value):
718
old_value = self._approvals_pending
719
self._approvals_pending = value
720
bval = bool(value)
721
if (hasattr(self, "dbus_object_path")
722
and bval is not bool(old_value)):
723
dbus_bool = dbus.Boolean(bval, variant_level=1)
724
self.PropertyChanged(dbus.String(u"approved_pending"),
725
dbus_bool)
726
727
approvals_pending = property(_get_approvals_pending,
728
_set_approvals_pending)
729
del _get_approvals_pending, _set_approvals_pending
730
731
@staticmethod
732
def _datetime_to_dbus(dt, variant_level=0):
733
"""Convert a UTC datetime.datetime() to a D-Bus type."""
734
return dbus.String(dt.isoformat(),
735
variant_level=variant_level)
736
737
def enable(self):
738
oldstate = getattr(self, u"enabled", False)
739
r = Client.enable(self)
740
if oldstate != self.enabled:
741
# Emit D-Bus signals
742
self.PropertyChanged(dbus.String(u"enabled"),
743
dbus.Boolean(True, variant_level=1))
744
self.PropertyChanged(
745
dbus.String(u"last_enabled"),
746
self._datetime_to_dbus(self.last_enabled,
747
variant_level=1))
748
return r
749
750
def disable(self, quiet = False):
751
oldstate = getattr(self, u"enabled", False)
752
r = Client.disable(self, quiet=quiet)
753
if not quiet and oldstate != self.enabled:
754
# Emit D-Bus signal
755
self.PropertyChanged(dbus.String(u"enabled"),
756
dbus.Boolean(False, variant_level=1))
757
return r
1223
1224
def notifychangeproperty(transform_func,
1225
dbus_name, type_func=lambda x: x,
1226
variant_level=1):
1227
""" Modify a variable so that it's a property which announces
1228
its changes to DBus.
1229
1230
transform_fun: Function that takes a value and a variant_level
1231
and transforms it to a D-Bus type.
1232
dbus_name: D-Bus name of the variable
1233
type_func: Function that transform the value before sending it
1234
to the D-Bus. Default: no transform
1235
variant_level: D-Bus variant level. Default: 1
1236
"""
1237
attrname = "_{0}".format(dbus_name)
1238
def setter(self, value):
1239
if hasattr(self, "dbus_object_path"):
1240
if (not hasattr(self, attrname) or
1241
type_func(getattr(self, attrname, None))
1242
!= type_func(value)):
1243
dbus_value = transform_func(type_func(value),
1244
variant_level
1245
=variant_level)
1246
self.PropertyChanged(dbus.String(dbus_name),
1247
dbus_value)
1248
setattr(self, attrname, value)
1249
1250
return property(lambda self: getattr(self, attrname), setter)
1251
1252
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1253
approvals_pending = notifychangeproperty(dbus.Boolean,
1254
"ApprovalPending",
1255
type_func = bool)
1256
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1257
last_enabled = notifychangeproperty(datetime_to_dbus,
1258
"LastEnabled")
1259
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1260
type_func = lambda checker:
1261
checker is not None)
1262
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1263
"LastCheckedOK")
1264
last_checker_status = notifychangeproperty(dbus.Int16,
1265
"LastCheckerStatus")
1266
last_approval_request = notifychangeproperty(
1267
datetime_to_dbus, "LastApprovalRequest")
1268
approved_by_default = notifychangeproperty(dbus.Boolean,
1269
"ApprovedByDefault")
1270
approval_delay = notifychangeproperty(dbus.UInt64,
1271
"ApprovalDelay",
1272
type_func =
1273
timedelta_to_milliseconds)
1274
approval_duration = notifychangeproperty(
1275
dbus.UInt64, "ApprovalDuration",
1276
type_func = timedelta_to_milliseconds)
1277
host = notifychangeproperty(dbus.String, "Host")
1278
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1279
type_func =
1280
timedelta_to_milliseconds)
1281
extended_timeout = notifychangeproperty(
1282
dbus.UInt64, "ExtendedTimeout",
1283
type_func = timedelta_to_milliseconds)
1284
interval = notifychangeproperty(dbus.UInt64,
1285
"Interval",
1286
type_func =
1287
timedelta_to_milliseconds)
1288
checker_command = notifychangeproperty(dbus.String, "Checker")
1289
1290
del notifychangeproperty
758
1291
759
1292
def __del__(self, *args, **kwargs):
760
1293
try:
761
1294
self.remove_from_connection()
762
1295
except LookupError:
763
1296
pass
764
if hasattr(DBusObjectWithProperties, u"__del__"):
1297
if hasattr(DBusObjectWithProperties, "__del__"):
765
1298
DBusObjectWithProperties.__del__(self, *args, **kwargs)
766
1299
Client.__del__(self, *args, **kwargs)
767
1300
769
1302
*args, **kwargs):
770
1303
self.checker_callback_tag = None
771
1304
self.checker = None
772
# Emit D-Bus signal
773
self.PropertyChanged(dbus.String(u"checker_running"),
774
dbus.Boolean(False, variant_level=1))
775
1305
if os.WIFEXITED(condition):
776
1306
exitstatus = os.WEXITSTATUS(condition)
777
1307
# Emit D-Bus signal
787
1317
return Client.checker_callback(self, pid, condition, command,
788
1318
*args, **kwargs)
789
1319
790
def checked_ok(self, *args, **kwargs):
791
r = Client.checked_ok(self, *args, **kwargs)
792
# Emit D-Bus signal
793
self.PropertyChanged(
794
dbus.String(u"last_checked_ok"),
795
(self._datetime_to_dbus(self.last_checked_ok,
796
variant_level=1)))
797
return r
798
799
1320
def start_checker(self, *args, **kwargs):
800
1321
old_checker = self.checker
801
1322
if self.checker is not None:
808
1329
and old_checker_pid != self.checker.pid):
809
1330
# Emit D-Bus signal
810
1331
self.CheckerStarted(self.current_checker_command)
811
self.PropertyChanged(
812
dbus.String(u"checker_running"),
813
dbus.Boolean(True, variant_level=1))
814
1332
return r
815
1333
816
def stop_checker(self, *args, **kwargs):
817
old_checker = getattr(self, u"checker", None)
818
r = Client.stop_checker(self, *args, **kwargs)
819
if (old_checker is not None
820
and getattr(self, u"checker", None) is None):
821
self.PropertyChanged(dbus.String(u"checker_running"),
822
dbus.Boolean(False, variant_level=1))
823
return r
824
825
1334
def _reset_approved(self):
826
self._approved = None
1335
self.approved = None
827
1336
return False
828
1337
829
1338
def approve(self, value=True):
830
self.send_changedstate()
831
self._approved = value
832
gobject.timeout_add(self._timedelta_to_milliseconds(self.approved_duration),
1339
self.approved = value
1340
gobject.timeout_add(timedelta_to_milliseconds
1341
(self.approval_duration),
833
1342
self._reset_approved)
834
1343
self.send_changedstate()
835
1344
836
1345
## D-Bus methods, signals & properties
837
_interface = u"se.bsnet.fukt.Mandos.Client"
1346
_interface = "se.recompile.Mandos.Client"
1347
1348
## Interfaces
1349
1350
@dbus_interface_annotations(_interface)
1351
def _foo(self):
1352
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1353
"false"}
838
1354
839
1355
## Signals
840
1356
841
1357
# CheckerCompleted - signal
842
@dbus.service.signal(_interface, signature=u"nxs")
1358
@dbus.service.signal(_interface, signature="nxs")
843
1359
def CheckerCompleted(self, exitcode, waitstatus, command):
844
1360
"D-Bus signal"
845
1361
pass
846
1362
847
1363
# CheckerStarted - signal
848
@dbus.service.signal(_interface, signature=u"s")
1364
@dbus.service.signal(_interface, signature="s")
849
1365
def CheckerStarted(self, command):
850
1366
"D-Bus signal"
851
1367
pass
852
1368
853
1369
# PropertyChanged - signal
854
@dbus.service.signal(_interface, signature=u"sv")
1370
@dbus.service.signal(_interface, signature="sv")
855
1371
def PropertyChanged(self, property, value):
856
1372
"D-Bus signal"
857
1373
pass
866
1382
pass
867
1383
868
1384
# Rejected - signal
869
@dbus.service.signal(_interface, signature=u"s")
1385
@dbus.service.signal(_interface, signature="s")
870
1386
def Rejected(self, reason):
871
1387
"D-Bus signal"
872
1388
pass
873
1389
874
1390
# NeedApproval - signal
875
@dbus.service.signal(_interface, signature=u"db")
1391
@dbus.service.signal(_interface, signature="tb")
876
1392
def NeedApproval(self, timeout, default):
877
1393
"D-Bus signal"
878
pass
1394
return self.need_approval()
879
1395
880
1396
## Methods
881
1397
882
1398
# Approve - method
883
@dbus.service.method(_interface, in_signature=u"b")
1399
@dbus.service.method(_interface, in_signature="b")
884
1400
def Approve(self, value):
885
1401
self.approve(value)
886
1402
887
1403
# CheckedOK - method
888
1404
@dbus.service.method(_interface)
889
1405
def CheckedOK(self):
890
return self.checked_ok()
1406
self.checked_ok()
891
1407
892
1408
# Enable - method
893
1409
@dbus.service.method(_interface)
914
1430
915
1431
## Properties
916
1432
917
# approved_pending - property
918
@dbus_service_property(_interface, signature=u"b", access=u"read")
919
def approved_pending_dbus_property(self):
1433
# ApprovalPending - property
1434
@dbus_service_property(_interface, signature="b", access="read")
1435
def ApprovalPending_dbus_property(self):
920
1436
return dbus.Boolean(bool(self.approvals_pending))
921
1437
922
# approved_by_default - property
923
@dbus_service_property(_interface, signature=u"b",
924
access=u"readwrite")
925
def approved_by_default_dbus_property(self):
926
return dbus.Boolean(self.approved_by_default)
927
928
# approved_delay - property
929
@dbus_service_property(_interface, signature=u"t",
930
access=u"readwrite")
931
def approved_delay_dbus_property(self):
932
return dbus.UInt64(self.approved_delay_milliseconds())
933
934
# approved_duration - property
935
@dbus_service_property(_interface, signature=u"t",
936
access=u"readwrite")
937
def approved_duration_dbus_property(self):
938
return dbus.UInt64(self._timedelta_to_milliseconds(
939
self.approved_duration))
940
941
# name - property
942
@dbus_service_property(_interface, signature=u"s", access=u"read")
943
def name_dbus_property(self):
1438
# ApprovedByDefault - property
1439
@dbus_service_property(_interface, signature="b",
1440
access="readwrite")
1441
def ApprovedByDefault_dbus_property(self, value=None):
1442
if value is None: # get
1443
return dbus.Boolean(self.approved_by_default)
1444
self.approved_by_default = bool(value)
1445
1446
# ApprovalDelay - property
1447
@dbus_service_property(_interface, signature="t",
1448
access="readwrite")
1449
def ApprovalDelay_dbus_property(self, value=None):
1450
if value is None: # get
1451
return dbus.UInt64(self.approval_delay_milliseconds())
1452
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1453
1454
# ApprovalDuration - property
1455
@dbus_service_property(_interface, signature="t",
1456
access="readwrite")
1457
def ApprovalDuration_dbus_property(self, value=None):
1458
if value is None: # get
1459
return dbus.UInt64(timedelta_to_milliseconds(
1460
self.approval_duration))
1461
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1462
1463
# Name - property
1464
@dbus_service_property(_interface, signature="s", access="read")
1465
def Name_dbus_property(self):
944
1466
return dbus.String(self.name)
945
1467
946
# fingerprint - property
947
@dbus_service_property(_interface, signature=u"s", access=u"read")
948
def fingerprint_dbus_property(self):
1468
# Fingerprint - property
1469
@dbus_service_property(_interface, signature="s", access="read")
1470
def Fingerprint_dbus_property(self):
949
1471
return dbus.String(self.fingerprint)
950
1472
951
# host - property
952
@dbus_service_property(_interface, signature=u"s",
953
access=u"readwrite")
954
def host_dbus_property(self, value=None):
1473
# Host - property
1474
@dbus_service_property(_interface, signature="s",
1475
access="readwrite")
1476
def Host_dbus_property(self, value=None):
955
1477
if value is None: # get
956
1478
return dbus.String(self.host)
957
self.host = value
958
# Emit D-Bus signal
959
self.PropertyChanged(dbus.String(u"host"),
960
dbus.String(value, variant_level=1))
961
962
# created - property
963
@dbus_service_property(_interface, signature=u"s", access=u"read")
964
def created_dbus_property(self):
965
return dbus.String(self._datetime_to_dbus(self.created))
966
967
# last_enabled - property
968
@dbus_service_property(_interface, signature=u"s", access=u"read")
969
def last_enabled_dbus_property(self):
970
if self.last_enabled is None:
971
return dbus.String(u"")
972
return dbus.String(self._datetime_to_dbus(self.last_enabled))
973
974
# enabled - property
975
@dbus_service_property(_interface, signature=u"b",
976
access=u"readwrite")
977
def enabled_dbus_property(self, value=None):
1479
self.host = unicode(value)
1480
1481
# Created - property
1482
@dbus_service_property(_interface, signature="s", access="read")
1483
def Created_dbus_property(self):
1484
return datetime_to_dbus(self.created)
1485
1486
# LastEnabled - property
1487
@dbus_service_property(_interface, signature="s", access="read")
1488
def LastEnabled_dbus_property(self):
1489
return datetime_to_dbus(self.last_enabled)
1490
1491
# Enabled - property
1492
@dbus_service_property(_interface, signature="b",
1493
access="readwrite")
1494
def Enabled_dbus_property(self, value=None):
978
1495
if value is None: # get
979
1496
return dbus.Boolean(self.enabled)
980
1497
if value:
982
1499
else:
983
1500
self.disable()
984
1501
985
# last_checked_ok - property
986
@dbus_service_property(_interface, signature=u"s",
987
access=u"readwrite")
988
def last_checked_ok_dbus_property(self, value=None):
1502
# LastCheckedOK - property
1503
@dbus_service_property(_interface, signature="s",
1504
access="readwrite")
1505
def LastCheckedOK_dbus_property(self, value=None):
989
1506
if value is not None:
990
1507
self.checked_ok()
991
1508
return
992
if self.last_checked_ok is None:
993
return dbus.String(u"")
994
return dbus.String(self._datetime_to_dbus(self
995
.last_checked_ok))
996
997
# timeout - property
998
@dbus_service_property(_interface, signature=u"t",
999
access=u"readwrite")
1000
def timeout_dbus_property(self, value=None):
1509
return datetime_to_dbus(self.last_checked_ok)
1510
1511
# LastCheckerStatus - property
1512
@dbus_service_property(_interface, signature="n",
1513
access="read")
1514
def LastCheckerStatus_dbus_property(self):
1515
return dbus.Int16(self.last_checker_status)
1516
1517
# Expires - property
1518
@dbus_service_property(_interface, signature="s", access="read")
1519
def Expires_dbus_property(self):
1520
return datetime_to_dbus(self.expires)
1521
1522
# LastApprovalRequest - property
1523
@dbus_service_property(_interface, signature="s", access="read")
1524
def LastApprovalRequest_dbus_property(self):
1525
return datetime_to_dbus(self.last_approval_request)
1526
1527
# Timeout - property
1528
@dbus_service_property(_interface, signature="t",
1529
access="readwrite")
1530
def Timeout_dbus_property(self, value=None):
1001
1531
if value is None: # get
1002
1532
return dbus.UInt64(self.timeout_milliseconds())
1533
old_timeout = self.timeout
1003
1534
self.timeout = datetime.timedelta(0, 0, 0, value)
1004
# Emit D-Bus signal
1005
self.PropertyChanged(dbus.String(u"timeout"),
1006
dbus.UInt64(value, variant_level=1))
1007
if getattr(self, u"disable_initiator_tag", None) is None:
1008
return
1009
# Reschedule timeout
1010
gobject.source_remove(self.disable_initiator_tag)
1011
self.disable_initiator_tag = None
1012
time_to_die = (self.
1013
_timedelta_to_milliseconds((self
1014
.last_checked_ok
1015
+ self.timeout)
1016
- datetime.datetime
1017
.utcnow()))
1018
if time_to_die <= 0:
1019
# The timeout has passed
1020
self.disable()
1021
else:
1022
self.disable_initiator_tag = (gobject.timeout_add
1023
(time_to_die, self.disable))
1024
1025
# interval - property
1026
@dbus_service_property(_interface, signature=u"t",
1027
access=u"readwrite")
1028
def interval_dbus_property(self, value=None):
1535
# Reschedule disabling
1536
if self.enabled:
1537
now = datetime.datetime.utcnow()
1538
self.expires += self.timeout - old_timeout
1539
if self.expires <= now:
1540
# The timeout has passed
1541
self.disable()
1542
else:
1543
if (getattr(self, "disable_initiator_tag", None)
1544
is None):
1545
return
1546
gobject.source_remove(self.disable_initiator_tag)
1547
self.disable_initiator_tag = (
1548
gobject.timeout_add(
1549
timedelta_to_milliseconds(self.expires - now),
1550
self.disable))
1551
1552
# ExtendedTimeout - property
1553
@dbus_service_property(_interface, signature="t",
1554
access="readwrite")
1555
def ExtendedTimeout_dbus_property(self, value=None):
1556
if value is None: # get
1557
return dbus.UInt64(self.extended_timeout_milliseconds())
1558
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1559
1560
# Interval - property
1561
@dbus_service_property(_interface, signature="t",
1562
access="readwrite")
1563
def Interval_dbus_property(self, value=None):
1029
1564
if value is None: # get
1030
1565
return dbus.UInt64(self.interval_milliseconds())
1031
1566
self.interval = datetime.timedelta(0, 0, 0, value)
1032
# Emit D-Bus signal
1033
self.PropertyChanged(dbus.String(u"interval"),
1034
dbus.UInt64(value, variant_level=1))
1035
if getattr(self, u"checker_initiator_tag", None) is None:
1567
if getattr(self, "checker_initiator_tag", None) is None:
1036
1568
return
1037
# Reschedule checker run
1038
gobject.source_remove(self.checker_initiator_tag)
1039
self.checker_initiator_tag = (gobject.timeout_add
1040
(value, self.start_checker))
1041
self.start_checker() # Start one now, too
1042
1043
# checker - property
1044
@dbus_service_property(_interface, signature=u"s",
1045
access=u"readwrite")
1046
def checker_dbus_property(self, value=None):
1569
if self.enabled:
1570
# Reschedule checker run
1571
gobject.source_remove(self.checker_initiator_tag)
1572
self.checker_initiator_tag = (gobject.timeout_add
1573
(value, self.start_checker))
1574
self.start_checker() # Start one now, too
1575
1576
# Checker - property
1577
@dbus_service_property(_interface, signature="s",
1578
access="readwrite")
1579
def Checker_dbus_property(self, value=None):
1047
1580
if value is None: # get
1048
1581
return dbus.String(self.checker_command)
1049
self.checker_command = value
1050
# Emit D-Bus signal
1051
self.PropertyChanged(dbus.String(u"checker"),
1052
dbus.String(self.checker_command,
1053
variant_level=1))
1582
self.checker_command = unicode(value)
1054
1583
1055
# checker_running - property
1056
@dbus_service_property(_interface, signature=u"b",
1057
access=u"readwrite")
1058
def checker_running_dbus_property(self, value=None):
1584
# CheckerRunning - property
1585
@dbus_service_property(_interface, signature="b",
1586
access="readwrite")
1587
def CheckerRunning_dbus_property(self, value=None):
1059
1588
if value is None: # get
1060
1589
return dbus.Boolean(self.checker is not None)
1061
1590
if value:
1063
1592
else:
1064
1593
self.stop_checker()
1065
1594
1066
# object_path - property
1067
@dbus_service_property(_interface, signature=u"o", access=u"read")
1068
def object_path_dbus_property(self):
1595
# ObjectPath - property
1596
@dbus_service_property(_interface, signature="o", access="read")
1597
def ObjectPath_dbus_property(self):
1069
1598
return self.dbus_object_path # is already a dbus.ObjectPath
1070
1599
1071
# secret = property
1072
@dbus_service_property(_interface, signature=u"ay",
1073
access=u"write", byte_arrays=True)
1074
def secret_dbus_property(self, value):
1600
# Secret = property
1601
@dbus_service_property(_interface, signature="ay",
1602
access="write", byte_arrays=True)
1603
def Secret_dbus_property(self, value):
1075
1604
self.secret = str(value)
1076
1605
1077
1606
del _interface
1083
1612
self._pipe.send(('init', fpr, address))
1084
1613
if not self._pipe.recv():
1085
1614
raise KeyError()
1086
1615
1087
1616
def __getattribute__(self, name):
1088
if(name == '_pipe'):
1617
if name == '_pipe':
1089
1618
return super(ProxyClient, self).__getattribute__(name)
1090
1619
self._pipe.send(('getattr', name))
1091
1620
data = self._pipe.recv()
1096
1625
self._pipe.send(('funcall', name, args, kwargs))
1097
1626
return self._pipe.recv()[1]
1098
1627
return func
1099
1628
1100
1629
def __setattr__(self, name, value):
1101
if(name == '_pipe'):
1630
if name == '_pipe':
1102
1631
return super(ProxyClient, self).__setattr__(name, value)
1103
1632
self._pipe.send(('setattr', name, value))
1104
1633
1111
1640
1112
1641
def handle(self):
1113
1642
with contextlib.closing(self.server.child_pipe) as child_pipe:
1114
logger.info(u"TCP connection from: %s",
1643
logger.info("TCP connection from: %s",
1115
1644
unicode(self.client_address))
1116
logger.debug(u"Pipe FD: %d",
1645
logger.debug("Pipe FD: %d",
1117
1646
self.server.child_pipe.fileno())
1118
1647
1119
1648
session = (gnutls.connection
1120
1649
.ClientSession(self.request,
1121
1650
gnutls.connection
1122
1651
.X509Credentials()))
1123
1652
1124
1653
# Note: gnutls.connection.X509Credentials is really a
1125
1654
# generic GnuTLS certificate credentials object so long as
1126
1655
# no X.509 keys are added to it. Therefore, we can use it
1127
1656
# here despite using OpenPGP certificates.
1128
1129
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1130
# u"+AES-256-CBC", u"+SHA1",
1131
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1132
# u"+DHE-DSS"))
1657
1658
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1659
# "+AES-256-CBC", "+SHA1",
1660
# "+COMP-NULL", "+CTYPE-OPENPGP",
1661
# "+DHE-DSS"))
1133
1662
# Use a fallback default, since this MUST be set.
1134
1663
priority = self.server.gnutls_priority
1135
1664
if priority is None:
1136
priority = u"NORMAL"
1665
priority = "NORMAL"
1137
1666
(gnutls.library.functions
1138
1667
.gnutls_priority_set_direct(session._c_object,
1139
1668
priority, None))
1140
1669
1141
1670
# Start communication using the Mandos protocol
1142
1671
# Get protocol number
1143
1672
line = self.request.makefile().readline()
1144
logger.debug(u"Protocol version: %r", line)
1673
logger.debug("Protocol version: %r", line)
1145
1674
try:
1146
1675
if int(line.strip().split()[0]) > 1:
1147
1676
raise RuntimeError
1148
except (ValueError, IndexError, RuntimeError), error:
1149
logger.error(u"Unknown protocol version: %s", error)
1677
except (ValueError, IndexError, RuntimeError) as error:
1678
logger.error("Unknown protocol version: %s", error)
1150
1679
return
1151
1680
1152
1681
# Start GnuTLS connection
1153
1682
try:
1154
1683
session.handshake()
1155
except gnutls.errors.GNUTLSError, error:
1156
logger.warning(u"Handshake failed: %s", error)
1684
except gnutls.errors.GNUTLSError as error:
1685
logger.warning("Handshake failed: %s", error)
1157
1686
# Do not run session.bye() here: the session is not
1158
1687
# established. Just abandon the request.
1159
1688
return
1160
logger.debug(u"Handshake succeeded")
1161
1689
logger.debug("Handshake succeeded")
1690
1162
1691
approval_required = False
1163
1692
try:
1164
1693
try:
1165
1694
fpr = self.fingerprint(self.peer_certificate
1166
1695
(session))
1167
except (TypeError, gnutls.errors.GNUTLSError), error:
1168
logger.warning(u"Bad certificate: %s", error)
1696
except (TypeError,
1697
gnutls.errors.GNUTLSError) as error:
1698
logger.warning("Bad certificate: %s", error)
1169
1699
return
1170
logger.debug(u"Fingerprint: %s", fpr)
1171
1700
logger.debug("Fingerprint: %s", fpr)
1701
1172
1702
try:
1173
1703
client = ProxyClient(child_pipe, fpr,
1174
1704
self.client_address)
1175
1705
except KeyError:
1176
1706
return
1177
1707
1178
if client.approved_delay:
1179
delay = client.approved_delay
1708
if client.approval_delay:
1709
delay = client.approval_delay
1180
1710
client.approvals_pending += 1
1181
1711
approval_required = True
1182
1712
1183
1713
while True:
1184
1714
if not client.enabled:
1185
logger.warning(u"Client %s is disabled",
1715
logger.info("Client %s is disabled",
1186
1716
client.name)
1187
1717
if self.server.use_dbus:
1188
1718
# Emit D-Bus signal
1189
client.Rejected("Disabled")
1719
client.Rejected("Disabled")
1190
1720
return
1191
1721
1192
if client._approved or not client.approved_delay:
1722
if client.approved or not client.approval_delay:
1193
1723
#We are approved or approval is disabled
1194
1724
break
1195
elif client._approved is None:
1196
logger.info(u"Client %s need approval",
1725
elif client.approved is None:
1726
logger.info("Client %s needs approval",
1197
1727
client.name)
1198
1728
if self.server.use_dbus:
1199
1729
# Emit D-Bus signal
1200
1730
client.NeedApproval(
1201
client.approved_delay_milliseconds(),
1731
client.approval_delay_milliseconds(),
1202
1732
client.approved_by_default)
1203
1733
else:
1204
logger.warning(u"Client %s was not approved",
1734
logger.warning("Client %s was not approved",
1205
1735
client.name)
1206
1736
if self.server.use_dbus:
1207
1737
# Emit D-Bus signal
1208
client.Rejected("Disapproved")
1738
client.Rejected("Denied")
1209
1739
return
1210
1740
1211
1741
#wait until timeout or approved
1212
#x = float(client._timedelta_to_milliseconds(delay))
1213
1742
time = datetime.datetime.now()
1214
1743
client.changedstate.acquire()
1215
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1744
client.changedstate.wait(
1745
float(timedelta_to_milliseconds(delay)
1746
/ 1000))
1216
1747
client.changedstate.release()
1217
1748
time2 = datetime.datetime.now()
1218
1749
if (time2 - time) >= delay:
1222
1753
client.name)
1223
1754
if self.server.use_dbus:
1224
1755
# Emit D-Bus signal
1225
client.Rejected("Time out")
1756
client.Rejected("Approval timed out")
1226
1757
return
1227
1758
else:
1228
1759
break
1233
1764
while sent_size < len(client.secret):
1234
1765
try:
1235
1766
sent = session.send(client.secret[sent_size:])
1236
except (gnutls.errors.GNUTLSError), error:
1237
logger.warning("gnutls send failed")
1767
except gnutls.errors.GNUTLSError as error:
1768
logger.warning("gnutls send failed",
1769
exc_info=error)
1238
1770
return
1239
logger.debug(u"Sent: %d, remaining: %d",
1771
logger.debug("Sent: %d, remaining: %d",
1240
1772
sent, len(client.secret)
1241
1773
- (sent_size + sent))
1242
1774
sent_size += sent
1243
1244
logger.info(u"Sending secret to %s", client.name)
1245
# bump the timeout as if seen
1246
client.checked_ok()
1775
1776
logger.info("Sending secret to %s", client.name)
1777
# bump the timeout using extended_timeout
1778
client.bump_timeout(client.extended_timeout)
1247
1779
if self.server.use_dbus:
1248
1780
# Emit D-Bus signal
1249
1781
client.GotSecret()
1253
1785
client.approvals_pending -= 1
1254
1786
try:
1255
1787
session.bye()
1256
except (gnutls.errors.GNUTLSError), error:
1257
logger.warning("gnutls bye failed")
1788
except gnutls.errors.GNUTLSError as error:
1789
logger.warning("GnuTLS bye failed",
1790
exc_info=error)
1258
1791
1259
1792
@staticmethod
1260
1793
def peer_certificate(session):
1270
1803
.gnutls_certificate_get_peers
1271
1804
(session._c_object, ctypes.byref(list_size)))
1272
1805
if not bool(cert_list) and list_size.value != 0:
1273
raise gnutls.errors.GNUTLSError(u"error getting peer"
1274
u" certificate")
1806
raise gnutls.errors.GNUTLSError("error getting peer"
1807
" certificate")
1275
1808
if list_size.value == 0:
1276
1809
return None
1277
1810
cert = cert_list[0]
1303
1836
if crtverify.value != 0:
1304
1837
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1305
1838
raise (gnutls.errors.CertificateSecurityError
1306
(u"Verify failed"))
1839
("Verify failed"))
1307
1840
# New buffer for the fingerprint
1308
1841
buf = ctypes.create_string_buffer(20)
1309
1842
buf_len = ctypes.c_size_t()
1316
1849
# Convert the buffer to a Python bytestring
1317
1850
fpr = ctypes.string_at(buf, buf_len.value)
1318
1851
# Convert the bytestring to hexadecimal notation
1319
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1852
hex_fpr = binascii.hexlify(fpr).upper()
1320
1853
return hex_fpr
1321
1854
1322
1855
1325
1858
def sub_process_main(self, request, address):
1326
1859
try:
1327
1860
self.finish_request(request, address)
1328
except:
1861
except Exception:
1329
1862
self.handle_error(request, address)
1330
1863
self.close_request(request)
1331
1864
1332
1865
def process_request(self, request, address):
1333
1866
"""Start a new process to process the request."""
1334
multiprocessing.Process(target = self.sub_process_main,
1335
args = (request, address)).start()
1867
proc = multiprocessing.Process(target = self.sub_process_main,
1868
args = (request, address))
1869
proc.start()
1870
return proc
1871
1336
1872
1337
1873
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1338
1874
""" adds a pipe to the MixIn """
1342
1878
This function creates a new pipe in self.pipe
1343
1879
"""
1344
1880
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1345
1346
super(MultiprocessingMixInWithPipe,
1347
self).process_request(request, client_address)
1881
1882
proc = MultiprocessingMixIn.process_request(self, request,
1883
client_address)
1348
1884
self.child_pipe.close()
1349
self.add_pipe(parent_pipe)
1350
1351
def add_pipe(self, parent_pipe):
1885
self.add_pipe(parent_pipe, proc)
1886
1887
def add_pipe(self, parent_pipe, proc):
1352
1888
"""Dummy function; override as necessary"""
1353
pass
1889
raise NotImplementedError
1890
1354
1891
1355
1892
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1356
1893
socketserver.TCPServer, object):
1362
1899
use_ipv6: Boolean; to use IPv6 or not
1363
1900
"""
1364
1901
def __init__(self, server_address, RequestHandlerClass,
1365
interface=None, use_ipv6=True):
1902
interface=None, use_ipv6=True, socketfd=None):
1903
"""If socketfd is set, use that file descriptor instead of
1904
creating a new one with socket.socket().
1905
"""
1366
1906
self.interface = interface
1367
1907
if use_ipv6:
1368
1908
self.address_family = socket.AF_INET6
1909
if socketfd is not None:
1910
# Save the file descriptor
1911
self.socketfd = socketfd
1912
# Save the original socket.socket() function
1913
self.socket_socket = socket.socket
1914
# To implement --socket, we monkey patch socket.socket.
1915
#
1916
# (When socketserver.TCPServer is a new-style class, we
1917
# could make self.socket into a property instead of monkey
1918
# patching socket.socket.)
1919
#
1920
# Create a one-time-only replacement for socket.socket()
1921
@functools.wraps(socket.socket)
1922
def socket_wrapper(*args, **kwargs):
1923
# Restore original function so subsequent calls are
1924
# not affected.
1925
socket.socket = self.socket_socket
1926
del self.socket_socket
1927
# This time only, return a new socket object from the
1928
# saved file descriptor.
1929
return socket.fromfd(self.socketfd, *args, **kwargs)
1930
# Replace socket.socket() function with wrapper
1931
socket.socket = socket_wrapper
1932
# The socketserver.TCPServer.__init__ will call
1933
# socket.socket(), which might be our replacement,
1934
# socket_wrapper(), if socketfd was set.
1369
1935
socketserver.TCPServer.__init__(self, server_address,
1370
1936
RequestHandlerClass)
1937
1371
1938
def server_bind(self):
1372
1939
"""This overrides the normal server_bind() function
1373
1940
to bind to an interface if one was specified, and also NOT to
1374
1941
bind to an address or port if they were not specified."""
1375
1942
if self.interface is not None:
1376
1943
if SO_BINDTODEVICE is None:
1377
logger.error(u"SO_BINDTODEVICE does not exist;"
1378
u" cannot bind to interface %s",
1944
logger.error("SO_BINDTODEVICE does not exist;"
1945
" cannot bind to interface %s",
1379
1946
self.interface)
1380
1947
else:
1381
1948
try:
1382
1949
self.socket.setsockopt(socket.SOL_SOCKET,
1383
1950
SO_BINDTODEVICE,
1384
1951
str(self.interface
1385
+ u'\0'))
1386
except socket.error, error:
1387
if error[0] == errno.EPERM:
1388
logger.error(u"No permission to"
1389
u" bind to interface %s",
1390
self.interface)
1391
elif error[0] == errno.ENOPROTOOPT:
1392
logger.error(u"SO_BINDTODEVICE not available;"
1393
u" cannot bind to interface %s",
1952
+ '\0'))
1953
except socket.error as error:
1954
if error.errno == errno.EPERM:
1955
logger.error("No permission to"
1956
" bind to interface %s",
1957
self.interface)
1958
elif error.errno == errno.ENOPROTOOPT:
1959
logger.error("SO_BINDTODEVICE not available;"
1960
" cannot bind to interface %s",
1961
self.interface)
1962
elif error.errno == errno.ENODEV:
1963
logger.error("Interface %s does not"
1964
" exist, cannot bind",
1394
1965
self.interface)
1395
1966
else:
1396
1967
raise
1398
1969
if self.server_address[0] or self.server_address[1]:
1399
1970
if not self.server_address[0]:
1400
1971
if self.address_family == socket.AF_INET6:
1401
any_address = u"::" # in6addr_any
1972
any_address = "::" # in6addr_any
1402
1973
else:
1403
1974
any_address = socket.INADDR_ANY
1404
1975
self.server_address = (any_address,
1427
1998
"""
1428
1999
def __init__(self, server_address, RequestHandlerClass,
1429
2000
interface=None, use_ipv6=True, clients=None,
1430
gnutls_priority=None, use_dbus=True):
2001
gnutls_priority=None, use_dbus=True, socketfd=None):
1431
2002
self.enabled = False
1432
2003
self.clients = clients
1433
2004
if self.clients is None:
1434
self.clients = set()
2005
self.clients = {}
1435
2006
self.use_dbus = use_dbus
1436
2007
self.gnutls_priority = gnutls_priority
1437
2008
IPv6_TCPServer.__init__(self, server_address,
1438
2009
RequestHandlerClass,
1439
2010
interface = interface,
1440
use_ipv6 = use_ipv6)
2011
use_ipv6 = use_ipv6,
2012
socketfd = socketfd)
1441
2013
def server_activate(self):
1442
2014
if self.enabled:
1443
2015
return socketserver.TCPServer.server_activate(self)
2016
1444
2017
def enable(self):
1445
2018
self.enabled = True
1446
def add_pipe(self, parent_pipe):
2019
2020
def add_pipe(self, parent_pipe, proc):
1447
2021
# Call "handle_ipc" for both data and EOF events
1448
2022
gobject.io_add_watch(parent_pipe.fileno(),
1449
2023
gobject.IO_IN | gobject.IO_HUP,
1450
2024
functools.partial(self.handle_ipc,
1451
parent_pipe = parent_pipe))
1452
2025
parent_pipe =
2026
parent_pipe,
2027
proc = proc))
2028
1453
2029
def handle_ipc(self, source, condition, parent_pipe=None,
1454
client_object=None):
1455
condition_names = {
1456
gobject.IO_IN: u"IN", # There is data to read.
1457
gobject.IO_OUT: u"OUT", # Data can be written (without
1458
# blocking).
1459
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1460
gobject.IO_ERR: u"ERR", # Error condition.
1461
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1462
# broken, usually for pipes and
1463
# sockets).
1464
}
1465
conditions_string = ' | '.join(name
1466
for cond, name in
1467
condition_names.iteritems()
1468
if cond & condition)
1469
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1470
conditions_string)
1471
1472
# error or the other end of multiprocessing.Pipe has closed
1473
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2030
proc = None, client_object=None):
2031
# error, or the other end of multiprocessing.Pipe has closed
2032
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2033
# Wait for other process to exit
2034
proc.join()
1474
2035
return False
1475
2036
1476
2037
# Read a request from the child
1477
2038
request = parent_pipe.recv()
1478
logger.debug(u"IPC request: %s", repr(request))
1479
2039
command = request[0]
1480
2040
1481
2041
if command == 'init':
1482
2042
fpr = request[1]
1483
2043
address = request[2]
1484
2044
1485
for c in self.clients:
2045
for c in self.clients.itervalues():
1486
2046
if c.fingerprint == fpr:
1487
2047
client = c
1488
2048
break
1489
2049
else:
1490
logger.warning(u"Client not found for fingerprint: %s, ad"
1491
u"dress: %s", fpr, address)
2050
logger.info("Client not found for fingerprint: %s, ad"
2051
"dress: %s", fpr, address)
1492
2052
if self.use_dbus:
1493
2053
# Emit D-Bus signal
1494
mandos_dbus_service.ClientNotFound(fpr, address)
2054
mandos_dbus_service.ClientNotFound(fpr,
2055
address[0])
1495
2056
parent_pipe.send(False)
1496
2057
return False
1497
2058
1498
2059
gobject.io_add_watch(parent_pipe.fileno(),
1499
2060
gobject.IO_IN | gobject.IO_HUP,
1500
2061
functools.partial(self.handle_ipc,
1501
parent_pipe = parent_pipe,
1502
client_object = client))
2062
parent_pipe =
2063
parent_pipe,
2064
proc = proc,
2065
client_object =
2066
client))
1503
2067
parent_pipe.send(True)
1504
# remove the old hook in favor of the new above hook on same fileno
2068
# remove the old hook in favor of the new above hook on
2069
# same fileno
1505
2070
return False
1506
2071
if command == 'funcall':
1507
2072
funcname = request[1]
1508
2073
args = request[2]
1509
2074
kwargs = request[3]
1510
2075
1511
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1512
2076
parent_pipe.send(('data', getattr(client_object,
2077
funcname)(*args,
2078
**kwargs)))
2079
1513
2080
if command == 'getattr':
1514
2081
attrname = request[1]
1515
2082
if callable(client_object.__getattribute__(attrname)):
1516
2083
parent_pipe.send(('function',))
1517
2084
else:
1518
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2085
parent_pipe.send(('data', client_object
2086
.__getattribute__(attrname)))
1519
2087
1520
2088
if command == 'setattr':
1521
2089
attrname = request[1]
1522
2090
value = request[2]
1523
2091
setattr(client_object, attrname, value)
1524
2092
1525
2093
return True
1526
2094
1527
2095
1528
2096
def string_to_delta(interval):
1529
2097
"""Parse a string and return a datetime.timedelta
1530
2098
1531
>>> string_to_delta(u'7d')
2099
>>> string_to_delta('7d')
1532
2100
datetime.timedelta(7)
1533
>>> string_to_delta(u'60s')
2101
>>> string_to_delta('60s')
1534
2102
datetime.timedelta(0, 60)
1535
>>> string_to_delta(u'60m')
2103
>>> string_to_delta('60m')
1536
2104
datetime.timedelta(0, 3600)
1537
>>> string_to_delta(u'24h')
2105
>>> string_to_delta('24h')
1538
2106
datetime.timedelta(1)
1539
>>> string_to_delta(u'1w')
2107
>>> string_to_delta('1w')
1540
2108
datetime.timedelta(7)
1541
>>> string_to_delta(u'5m 30s')
2109
>>> string_to_delta('5m 30s')
1542
2110
datetime.timedelta(0, 330)
1543
2111
"""
1544
2112
timevalue = datetime.timedelta(0)
1546
2114
try:
1547
2115
suffix = unicode(s[-1])
1548
2116
value = int(s[:-1])
1549
if suffix == u"d":
2117
if suffix == "d":
1550
2118
delta = datetime.timedelta(value)
1551
elif suffix == u"s":
2119
elif suffix == "s":
1552
2120
delta = datetime.timedelta(0, value)
1553
elif suffix == u"m":
2121
elif suffix == "m":
1554
2122
delta = datetime.timedelta(0, 0, 0, 0, value)
1555
elif suffix == u"h":
2123
elif suffix == "h":
1556
2124
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1557
elif suffix == u"w":
2125
elif suffix == "w":
1558
2126
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1559
2127
else:
1560
raise ValueError(u"Unknown suffix %r" % suffix)
1561
except (ValueError, IndexError), e:
1562
raise ValueError(e.message)
2128
raise ValueError("Unknown suffix {0!r}"
2129
.format(suffix))
2130
except (ValueError, IndexError) as e:
2131
raise ValueError(*(e.args))
1563
2132
timevalue += delta
1564
2133
return timevalue
1565
2134
1566
2135
1567
def if_nametoindex(interface):
1568
"""Call the C function if_nametoindex(), or equivalent
1569
1570
Note: This function cannot accept a unicode string."""
1571
global if_nametoindex
1572
try:
1573
if_nametoindex = (ctypes.cdll.LoadLibrary
1574
(ctypes.util.find_library(u"c"))
1575
.if_nametoindex)
1576
except (OSError, AttributeError):
1577
logger.warning(u"Doing if_nametoindex the hard way")
1578
def if_nametoindex(interface):
1579
"Get an interface index the hard way, i.e. using fcntl()"
1580
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1581
with contextlib.closing(socket.socket()) as s:
1582
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1583
struct.pack(str(u"16s16x"),
1584
interface))
1585
interface_index = struct.unpack(str(u"I"),
1586
ifreq[16:20])[0]
1587
return interface_index
1588
return if_nametoindex(interface)
1589
1590
1591
2136
def daemon(nochdir = False, noclose = False):
1592
2137
"""See daemon(3). Standard BSD Unix function.
1593
2138
1596
2141
sys.exit()
1597
2142
os.setsid()
1598
2143
if not nochdir:
1599
os.chdir(u"/")
2144
os.chdir("/")
1600
2145
if os.fork():
1601
2146
sys.exit()
1602
2147
if not noclose:
1603
2148
# Close all standard open file descriptors
1604
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2149
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1605
2150
if not stat.S_ISCHR(os.fstat(null).st_mode):
1606
2151
raise OSError(errno.ENODEV,
1607
u"%s not a character device"
1608
% os.path.devnull)
2152
"{0} not a character device"
2153
.format(os.devnull))
1609
2154
os.dup2(null, sys.stdin.fileno())
1610
2155
os.dup2(null, sys.stdout.fileno())
1611
2156
os.dup2(null, sys.stderr.fileno())
1618
2163
##################################################################
1619
2164
# Parsing of options, both command line and config file
1620
2165
1621
parser = optparse.OptionParser(version = "%%prog %s" % version)
1622
parser.add_option("-i", u"--interface", type=u"string",
1623
metavar="IF", help=u"Bind to interface IF")
1624
parser.add_option("-a", u"--address", type=u"string",
1625
help=u"Address to listen for requests on")
1626
parser.add_option("-p", u"--port", type=u"int",
1627
help=u"Port number to receive requests on")
1628
parser.add_option("--check", action=u"store_true",
1629
help=u"Run self-test")
1630
parser.add_option("--debug", action=u"store_true",
1631
help=u"Debug mode; run in foreground and log to"
1632
u" terminal")
1633
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1634
help=u"Debug level for stdout output")
1635
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1636
u" priority string (see GnuTLS documentation)")
1637
parser.add_option("--servicename", type=u"string",
1638
metavar=u"NAME", help=u"Zeroconf service name")
1639
parser.add_option("--configdir", type=u"string",
1640
default=u"/etc/mandos", metavar=u"DIR",
1641
help=u"Directory to search for configuration"
1642
u" files")
1643
parser.add_option("--no-dbus", action=u"store_false",
1644
dest=u"use_dbus", help=u"Do not provide D-Bus"
1645
u" system bus interface")
1646
parser.add_option("--no-ipv6", action=u"store_false",
1647
dest=u"use_ipv6", help=u"Do not use IPv6")
1648
options = parser.parse_args()[0]
2166
parser = argparse.ArgumentParser()
2167
parser.add_argument("-v", "--version", action="version",
2168
version = "%(prog)s {0}".format(version),
2169
help="show version number and exit")
2170
parser.add_argument("-i", "--interface", metavar="IF",
2171
help="Bind to interface IF")
2172
parser.add_argument("-a", "--address",
2173
help="Address to listen for requests on")
2174
parser.add_argument("-p", "--port", type=int,
2175
help="Port number to receive requests on")
2176
parser.add_argument("--check", action="store_true",
2177
help="Run self-test")
2178
parser.add_argument("--debug", action="store_true",
2179
help="Debug mode; run in foreground and log"
2180
" to terminal")
2181
parser.add_argument("--debuglevel", metavar="LEVEL",
2182
help="Debug level for stdout output")
2183
parser.add_argument("--priority", help="GnuTLS"
2184
" priority string (see GnuTLS documentation)")
2185
parser.add_argument("--servicename",
2186
metavar="NAME", help="Zeroconf service name")
2187
parser.add_argument("--configdir",
2188
default="/etc/mandos", metavar="DIR",
2189
help="Directory to search for configuration"
2190
" files")
2191
parser.add_argument("--no-dbus", action="store_false",
2192
dest="use_dbus", help="Do not provide D-Bus"
2193
" system bus interface")
2194
parser.add_argument("--no-ipv6", action="store_false",
2195
dest="use_ipv6", help="Do not use IPv6")
2196
parser.add_argument("--no-restore", action="store_false",
2197
dest="restore", help="Do not restore stored"
2198
" state")
2199
parser.add_argument("--socket", type=int,
2200
help="Specify a file descriptor to a network"
2201
" socket to use instead of creating one")
2202
parser.add_argument("--statedir", metavar="DIR",
2203
help="Directory to save/restore state in")
2204
2205
options = parser.parse_args()
1649
2206
1650
2207
if options.check:
1651
2208
import doctest
1653
2210
sys.exit()
1654
2211
1655
2212
# Default values for config file for server-global settings
1656
server_defaults = { u"interface": u"",
1657
u"address": u"",
1658
u"port": u"",
1659
u"debug": u"False",
1660
u"priority":
1661
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1662
u"servicename": u"Mandos",
1663
u"use_dbus": u"True",
1664
u"use_ipv6": u"True",
1665
u"debuglevel": u"",
2213
server_defaults = { "interface": "",
2214
"address": "",
2215
"port": "",
2216
"debug": "False",
2217
"priority":
2218
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2219
"servicename": "Mandos",
2220
"use_dbus": "True",
2221
"use_ipv6": "True",
2222
"debuglevel": "",
2223
"restore": "True",
2224
"socket": "",
2225
"statedir": "/var/lib/mandos"
1666
2226
}
1667
2227
1668
2228
# Parse config file for server-global settings
1669
2229
server_config = configparser.SafeConfigParser(server_defaults)
1670
2230
del server_defaults
1671
2231
server_config.read(os.path.join(options.configdir,
1672
u"mandos.conf"))
2232
"mandos.conf"))
1673
2233
# Convert the SafeConfigParser object to a dict
1674
2234
server_settings = server_config.defaults()
1675
2235
# Use the appropriate methods on the non-string config options
1676
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1677
server_settings[option] = server_config.getboolean(u"DEFAULT",
2236
for option in ("debug", "use_dbus", "use_ipv6"):
2237
server_settings[option] = server_config.getboolean("DEFAULT",
1678
2238
option)
1679
2239
if server_settings["port"]:
1680
server_settings["port"] = server_config.getint(u"DEFAULT",
1681
u"port")
2240
server_settings["port"] = server_config.getint("DEFAULT",
2241
"port")
2242
if server_settings["socket"]:
2243
server_settings["socket"] = server_config.getint("DEFAULT",
2244
"socket")
2245
# Later, stdin will, and stdout and stderr might, be dup'ed
2246
# over with an opened os.devnull. But we don't want this to
2247
# happen with a supplied network socket.
2248
if 0 <= server_settings["socket"] <= 2:
2249
server_settings["socket"] = os.dup(server_settings
2250
["socket"])
1682
2251
del server_config
1683
2252
1684
2253
# Override the settings from the config file with command line
1685
2254
# options, if set.
1686
for option in (u"interface", u"address", u"port", u"debug",
1687
u"priority", u"servicename", u"configdir",
1688
u"use_dbus", u"use_ipv6", u"debuglevel"):
2255
for option in ("interface", "address", "port", "debug",
2256
"priority", "servicename", "configdir",
2257
"use_dbus", "use_ipv6", "debuglevel", "restore",
2258
"statedir", "socket"):
1689
2259
value = getattr(options, option)
1690
2260
if value is not None:
1691
2261
server_settings[option] = value
1699
2269
##################################################################
1700
2270
1701
2271
# For convenience
1702
debug = server_settings[u"debug"]
1703
debuglevel = server_settings[u"debuglevel"]
1704
use_dbus = server_settings[u"use_dbus"]
1705
use_ipv6 = server_settings[u"use_ipv6"]
1706
1707
if server_settings[u"servicename"] != u"Mandos":
2272
debug = server_settings["debug"]
2273
debuglevel = server_settings["debuglevel"]
2274
use_dbus = server_settings["use_dbus"]
2275
use_ipv6 = server_settings["use_ipv6"]
2276
stored_state_path = os.path.join(server_settings["statedir"],
2277
stored_state_file)
2278
2279
if debug:
2280
initlogger(debug, logging.DEBUG)
2281
else:
2282
if not debuglevel:
2283
initlogger(debug)
2284
else:
2285
level = getattr(logging, debuglevel.upper())
2286
initlogger(debug, level)
2287
2288
if server_settings["servicename"] != "Mandos":
1708
2289
syslogger.setFormatter(logging.Formatter
1709
(u'Mandos (%s) [%%(process)d]:'
1710
u' %%(levelname)s: %%(message)s'
1711
% server_settings[u"servicename"]))
2290
('Mandos ({0}) [%(process)d]:'
2291
' %(levelname)s: %(message)s'
2292
.format(server_settings
2293
["servicename"])))
1712
2294
1713
2295
# Parse config file with clients
1714
client_defaults = { u"timeout": u"1h",
1715
u"interval": u"5m",
1716
u"checker": u"fping -q -- %%(host)s",
1717
u"host": u"",
1718
u"approved_delay": u"0s",
1719
u"approved_duration": u"1s",
1720
}
1721
client_config = configparser.SafeConfigParser(client_defaults)
1722
client_config.read(os.path.join(server_settings[u"configdir"],
1723
u"clients.conf"))
2296
client_config = configparser.SafeConfigParser(Client
2297
.client_defaults)
2298
client_config.read(os.path.join(server_settings["configdir"],
2299
"clients.conf"))
1724
2300
1725
2301
global mandos_dbus_service
1726
2302
mandos_dbus_service = None
1727
2303
1728
tcp_server = MandosServer((server_settings[u"address"],
1729
server_settings[u"port"]),
2304
tcp_server = MandosServer((server_settings["address"],
2305
server_settings["port"]),
1730
2306
ClientHandler,
1731
interface=server_settings[u"interface"],
2307
interface=(server_settings["interface"]
2308
or None),
1732
2309
use_ipv6=use_ipv6,
1733
2310
gnutls_priority=
1734
server_settings[u"priority"],
1735
use_dbus=use_dbus)
1736
pidfilename = u"/var/run/mandos.pid"
1737
try:
1738
pidfile = open(pidfilename, u"w")
1739
except IOError:
1740
logger.error(u"Could not open file %r", pidfilename)
2311
server_settings["priority"],
2312
use_dbus=use_dbus,
2313
socketfd=(server_settings["socket"]
2314
or None))
2315
if not debug:
2316
pidfilename = "/var/run/mandos.pid"
2317
try:
2318
pidfile = open(pidfilename, "w")
2319
except IOError as e:
2320
logger.error("Could not open file %r", pidfilename,
2321
exc_info=e)
1741
2322
1742
try:
1743
uid = pwd.getpwnam(u"_mandos").pw_uid
1744
gid = pwd.getpwnam(u"_mandos").pw_gid
1745
except KeyError:
2323
for name in ("_mandos", "mandos", "nobody"):
1746
2324
try:
1747
uid = pwd.getpwnam(u"mandos").pw_uid
1748
gid = pwd.getpwnam(u"mandos").pw_gid
2325
uid = pwd.getpwnam(name).pw_uid
2326
gid = pwd.getpwnam(name).pw_gid
2327
break
1749
2328
except KeyError:
1750
try:
1751
uid = pwd.getpwnam(u"nobody").pw_uid
1752
gid = pwd.getpwnam(u"nobody").pw_gid
1753
except KeyError:
1754
uid = 65534
1755
gid = 65534
2329
continue
2330
else:
2331
uid = 65534
2332
gid = 65534
1756
2333
try:
1757
2334
os.setgid(gid)
1758
2335
os.setuid(uid)
1759
except OSError, error:
1760
if error[0] != errno.EPERM:
2336
except OSError as error:
2337
if error.errno != errno.EPERM:
1761
2338
raise error
1762
2339
1763
# Enable all possible GnuTLS debugging
1764
1765
1766
if not debug and not debuglevel:
1767
syslogger.setLevel(logging.WARNING)
1768
console.setLevel(logging.WARNING)
1769
if debuglevel:
1770
level = getattr(logging, debuglevel.upper())
1771
syslogger.setLevel(level)
1772
console.setLevel(level)
1773
1774
2340
if debug:
2341
# Enable all possible GnuTLS debugging
2342
1775
2343
# "Use a log level over 10 to enable all debugging options."
1776
2344
# - GnuTLS manual
1777
2345
gnutls.library.functions.gnutls_global_set_log_level(11)
1778
2346
1779
2347
@gnutls.library.types.gnutls_log_func
1780
2348
def debug_gnutls(level, string):
1781
logger.debug(u"GnuTLS: %s", string[:-1])
2349
logger.debug("GnuTLS: %s", string[:-1])
1782
2350
1783
2351
(gnutls.library.functions
1784
2352
.gnutls_global_set_log_function(debug_gnutls))
1785
2353
1786
2354
# Redirect stdin so all checkers get /dev/null
1787
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2355
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1788
2356
os.dup2(null, sys.stdin.fileno())
1789
2357
if null > 2:
1790
2358
os.close(null)
1791
else:
1792
# No console logging
1793
logger.removeHandler(console)
1794
2359
2360
# Need to fork before connecting to D-Bus
2361
if not debug:
2362
# Close all input and output, do double fork, etc.
2363
daemon()
2364
2365
# multiprocessing will use threads, so before we use gobject we
2366
# need to inform gobject that threads will be used.
2367
gobject.threads_init()
1795
2368
1796
2369
global main_loop
1797
2370
# From the Avahi example code
1798
DBusGMainLoop(set_as_default=True )
2371
DBusGMainLoop(set_as_default=True)
1799
2372
main_loop = gobject.MainLoop()
1800
2373
bus = dbus.SystemBus()
1801
2374
# End of Avahi example code
1802
2375
if use_dbus:
1803
2376
try:
1804
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2377
bus_name = dbus.service.BusName("se.recompile.Mandos",
1805
2378
bus, do_not_queue=True)
1806
except dbus.exceptions.NameExistsException, e:
1807
logger.error(unicode(e) + u", disabling D-Bus")
2379
old_bus_name = (dbus.service.BusName
2380
("se.bsnet.fukt.Mandos", bus,
2381
do_not_queue=True))
2382
except dbus.exceptions.NameExistsException as e:
2383
logger.error("Disabling D-Bus:", exc_info=e)
1808
2384
use_dbus = False
1809
server_settings[u"use_dbus"] = False
2385
server_settings["use_dbus"] = False
1810
2386
tcp_server.use_dbus = False
1811
2387
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1812
service = AvahiService(name = server_settings[u"servicename"],
1813
servicetype = u"_mandos._tcp",
1814
protocol = protocol, bus = bus)
2388
service = AvahiServiceToSyslog(name =
2389
server_settings["servicename"],
2390
servicetype = "_mandos._tcp",
2391
protocol = protocol, bus = bus)
1815
2392
if server_settings["interface"]:
1816
2393
service.interface = (if_nametoindex
1817
(str(server_settings[u"interface"])))
1818
1819
if not debug:
1820
# Close all input and output, do double fork, etc.
1821
daemon()
1822
2394
(str(server_settings["interface"])))
2395
1823
2396
global multiprocessing_manager
1824
2397
multiprocessing_manager = multiprocessing.Manager()
1825
2398
1826
2399
client_class = Client
1827
2400
if use_dbus:
1828
2401
client_class = functools.partial(ClientDBus, bus = bus)
1829
def client_config_items(config, section):
1830
special_settings = {
1831
"approved_by_default":
1832
lambda: config.getboolean(section,
1833
"approved_by_default"),
1834
}
1835
for name, value in config.items(section):
2402
2403
client_settings = Client.config_parser(client_config)
2404
old_client_settings = {}
2405
clients_data = {}
2406
2407
# Get client data and settings from last running state.
2408
if server_settings["restore"]:
2409
try:
2410
with open(stored_state_path, "rb") as stored_state:
2411
clients_data, old_client_settings = (pickle.load
2412
(stored_state))
2413
os.remove(stored_state_path)
2414
except IOError as e:
2415
if e.errno == errno.ENOENT:
2416
logger.warning("Could not load persistent state: {0}"
2417
.format(os.strerror(e.errno)))
2418
else:
2419
logger.critical("Could not load persistent state:",
2420
exc_info=e)
2421
raise
2422
except EOFError as e:
2423
logger.warning("Could not load persistent state: "
2424
"EOFError:", exc_info=e)
2425
2426
with PGPEngine() as pgp:
2427
for client_name, client in clients_data.iteritems():
2428
# Decide which value to use after restoring saved state.
2429
# We have three different values: Old config file,
2430
# new config file, and saved state.
2431
# New config value takes precedence if it differs from old
2432
# config value, otherwise use saved state.
2433
for name, value in client_settings[client_name].items():
2434
try:
2435
# For each value in new config, check if it
2436
# differs from the old config value (Except for
2437
# the "secret" attribute)
2438
if (name != "secret" and
2439
value != old_client_settings[client_name]
2440
[name]):
2441
client[name] = value
2442
except KeyError:
2443
pass
2444
2445
# Clients who has passed its expire date can still be
2446
# enabled if its last checker was successful. Clients
2447
# whose checker succeeded before we stored its state is
2448
# assumed to have successfully run all checkers during
2449
# downtime.
2450
if client["enabled"]:
2451
if datetime.datetime.utcnow() >= client["expires"]:
2452
if not client["last_checked_ok"]:
2453
logger.warning(
2454
"disabling client {0} - Client never "
2455
"performed a successful checker"
2456
.format(client_name))
2457
client["enabled"] = False
2458
elif client["last_checker_status"] != 0:
2459
logger.warning(
2460
"disabling client {0} - Client "
2461
"last checker failed with error code {1}"
2462
.format(client_name,
2463
client["last_checker_status"]))
2464
client["enabled"] = False
2465
else:
2466
client["expires"] = (datetime.datetime
2467
.utcnow()
2468
+ client["timeout"])
2469
logger.debug("Last checker succeeded,"
2470
" keeping {0} enabled"
2471
.format(client_name))
1836
2472
try:
1837
yield (name, special_settings[name]())
1838
except KeyError:
1839
yield (name, value)
1840
1841
tcp_server.clients.update(set(
1842
client_class(name = section,
1843
config= dict(client_config_items(
1844
client_config, section)))
1845
for section in client_config.sections()))
2473
client["secret"] = (
2474
pgp.decrypt(client["encrypted_secret"],
2475
client_settings[client_name]
2476
["secret"]))
2477
except PGPError:
2478
# If decryption fails, we use secret from new settings
2479
logger.debug("Failed to decrypt {0} old secret"
2480
.format(client_name))
2481
client["secret"] = (
2482
client_settings[client_name]["secret"])
2483
2484
# Add/remove clients based on new changes made to config
2485
for client_name in (set(old_client_settings)
2486
- set(client_settings)):
2487
del clients_data[client_name]
2488
for client_name in (set(client_settings)
2489
- set(old_client_settings)):
2490
clients_data[client_name] = client_settings[client_name]
2491
2492
# Create all client objects
2493
for client_name, client in clients_data.iteritems():
2494
tcp_server.clients[client_name] = client_class(
2495
name = client_name, settings = client)
2496
1846
2497
if not tcp_server.clients:
1847
logger.warning(u"No clients defined")
1848
1849
try:
1850
with pidfile:
1851
pid = os.getpid()
1852
pidfile.write(str(pid) + "\n")
1853
del pidfile
1854
except IOError:
1855
logger.error(u"Could not write to file %r with PID %d",
1856
pidfilename, pid)
1857
except NameError:
1858
# "pidfile" was never created
1859
pass
1860
del pidfilename
2498
logger.warning("No clients defined")
1861
2499
1862
2500
if not debug:
1863
signal.signal(signal.SIGINT, signal.SIG_IGN)
2501
try:
2502
with pidfile:
2503
pid = os.getpid()
2504
pidfile.write(str(pid) + "\n".encode("utf-8"))
2505
del pidfile
2506
except IOError:
2507
logger.error("Could not write to file %r with PID %d",
2508
pidfilename, pid)
2509
except NameError:
2510
# "pidfile" was never created
2511
pass
2512
del pidfilename
2513
1864
2514
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1865
2515
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1866
2516
1867
2517
if use_dbus:
1868
class MandosDBusService(dbus.service.Object):
2518
@alternate_dbus_interfaces({"se.recompile.Mandos":
2519
"se.bsnet.fukt.Mandos"})
2520
class MandosDBusService(DBusObjectWithProperties):
1869
2521
"""A D-Bus proxy object"""
1870
2522
def __init__(self):
1871
dbus.service.Object.__init__(self, bus, u"/")
1872
_interface = u"se.bsnet.fukt.Mandos"
1873
1874
@dbus.service.signal(_interface, signature=u"o")
2523
dbus.service.Object.__init__(self, bus, "/")
2524
_interface = "se.recompile.Mandos"
2525
2526
@dbus_interface_annotations(_interface)
2527
def _foo(self):
2528
return { "org.freedesktop.DBus.Property"
2529
".EmitsChangedSignal":
2530
"false"}
2531
2532
@dbus.service.signal(_interface, signature="o")
1875
2533
def ClientAdded(self, objpath):
1876
2534
"D-Bus signal"
1877
2535
pass
1878
2536
1879
@dbus.service.signal(_interface, signature=u"ss")
2537
@dbus.service.signal(_interface, signature="ss")
1880
2538
def ClientNotFound(self, fingerprint, address):
1881
2539
"D-Bus signal"
1882
2540
pass
1883
2541
1884
@dbus.service.signal(_interface, signature=u"os")
2542
@dbus.service.signal(_interface, signature="os")
1885
2543
def ClientRemoved(self, objpath, name):
1886
2544
"D-Bus signal"
1887
2545
pass
1888
2546
1889
@dbus.service.method(_interface, out_signature=u"ao")
2547
@dbus.service.method(_interface, out_signature="ao")
1890
2548
def GetAllClients(self):
1891
2549
"D-Bus method"
1892
2550
return dbus.Array(c.dbus_object_path
1893
for c in tcp_server.clients)
2551
for c in
2552
tcp_server.clients.itervalues())
1894
2553
1895
2554
@dbus.service.method(_interface,
1896
out_signature=u"a{oa{sv}}")
2555
out_signature="a{oa{sv}}")
1897
2556
def GetAllClientsWithProperties(self):
1898
2557
"D-Bus method"
1899
2558
return dbus.Dictionary(
1900
((c.dbus_object_path, c.GetAll(u""))
1901
for c in tcp_server.clients),
1902
signature=u"oa{sv}")
2559
((c.dbus_object_path, c.GetAll(""))
2560
for c in tcp_server.clients.itervalues()),
2561
signature="oa{sv}")
1903
2562
1904
@dbus.service.method(_interface, in_signature=u"o")
2563
@dbus.service.method(_interface, in_signature="o")
1905
2564
def RemoveClient(self, object_path):
1906
2565
"D-Bus method"
1907
for c in tcp_server.clients:
2566
for c in tcp_server.clients.itervalues():
1908
2567
if c.dbus_object_path == object_path:
1909
tcp_server.clients.remove(c)
2568
del tcp_server.clients[c.name]
1910
2569
c.remove_from_connection()
1911
2570
# Don't signal anything except ClientRemoved
1912
2571
c.disable(quiet=True)
1923
2582
"Cleanup function; run on exit"
1924
2583
service.cleanup()
1925
2584
2585
multiprocessing.active_children()
2586
if not (tcp_server.clients or client_settings):
2587
return
2588
2589
# Store client before exiting. Secrets are encrypted with key
2590
# based on what config file has. If config file is
2591
# removed/edited, old secret will thus be unrecovable.
2592
clients = {}
2593
with PGPEngine() as pgp:
2594
for client in tcp_server.clients.itervalues():
2595
key = client_settings[client.name]["secret"]
2596
client.encrypted_secret = pgp.encrypt(client.secret,
2597
key)
2598
client_dict = {}
2599
2600
# A list of attributes that can not be pickled
2601
# + secret.
2602
exclude = set(("bus", "changedstate", "secret",
2603
"checker"))
2604
for name, typ in (inspect.getmembers
2605
(dbus.service.Object)):
2606
exclude.add(name)
2607
2608
client_dict["encrypted_secret"] = (client
2609
.encrypted_secret)
2610
for attr in client.client_structure:
2611
if attr not in exclude:
2612
client_dict[attr] = getattr(client, attr)
2613
2614
clients[client.name] = client_dict
2615
del client_settings[client.name]["secret"]
2616
2617
try:
2618
with (tempfile.NamedTemporaryFile
2619
(mode='wb', suffix=".pickle", prefix='clients-',
2620
dir=os.path.dirname(stored_state_path),
2621
delete=False)) as stored_state:
2622
pickle.dump((clients, client_settings), stored_state)
2623
tempname=stored_state.name
2624
os.rename(tempname, stored_state_path)
2625
except (IOError, OSError) as e:
2626
if not debug:
2627
try:
2628
os.remove(tempname)
2629
except NameError:
2630
pass
2631
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2632
logger.warning("Could not save persistent state: {0}"
2633
.format(os.strerror(e.errno)))
2634
else:
2635
logger.warning("Could not save persistent state:",
2636
exc_info=e)
2637
raise e
2638
2639
# Delete all clients, and settings from config
1926
2640
while tcp_server.clients:
1927
client = tcp_server.clients.pop()
2641
name, client = tcp_server.clients.popitem()
1928
2642
if use_dbus:
1929
2643
client.remove_from_connection()
1930
client.disable_hook = None
1931
2644
# Don't signal anything except ClientRemoved
1932
2645
client.disable(quiet=True)
1933
2646
if use_dbus:
1934
2647
# Emit D-Bus signal
1935
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2648
mandos_dbus_service.ClientRemoved(client
2649
.dbus_object_path,
1936
2650
client.name)
2651
client_settings.clear()
1937
2652
1938
2653
atexit.register(cleanup)
1939
2654
1940
for client in tcp_server.clients:
2655
for client in tcp_server.clients.itervalues():
1941
2656
if use_dbus:
1942
2657
# Emit D-Bus signal
1943
2658
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1944
client.enable()
2659
# Need to initiate checking of clients
2660
if client.enabled:
2661
client.init_checker()
1945
2662
1946
2663
tcp_server.enable()
1947
2664
tcp_server.server_activate()
1949
2666
# Find out what port we got
1950
2667
service.port = tcp_server.socket.getsockname()[1]
1951
2668
if use_ipv6:
1952
logger.info(u"Now listening on address %r, port %d,"
1953
" flowinfo %d, scope_id %d"
1954
% tcp_server.socket.getsockname())
2669
logger.info("Now listening on address %r, port %d,"
2670
" flowinfo %d, scope_id %d",
2671
*tcp_server.socket.getsockname())
1955
2672
else: # IPv4
1956
logger.info(u"Now listening on address %r, port %d"
1957
% tcp_server.socket.getsockname())
2673
logger.info("Now listening on address %r, port %d",
2674
*tcp_server.socket.getsockname())
1958
2675
1959
2676
#service.interface = tcp_server.socket.getsockname()[3]
1960
2677
1962
2679
# From the Avahi example code
1963
2680
try:
1964
2681
service.activate()
1965
except dbus.exceptions.DBusException, error:
1966
logger.critical(u"DBusException: %s", error)
2682
except dbus.exceptions.DBusException as error:
2683
logger.critical("D-Bus Exception", exc_info=error)
1967
2684
cleanup()
1968
2685
sys.exit(1)
1969
2686
# End of Avahi example code
1973
2690
(tcp_server.handle_request
1974
2691
(*args[2:], **kwargs) or True))
1975
2692
1976
logger.debug(u"Starting main loop")
2693
logger.debug("Starting main loop")
1977
2694
main_loop.run()
1978
except AvahiError, error:
1979
logger.critical(u"AvahiError: %s", error)
2695
except AvahiError as error:
2696
logger.critical("Avahi Error", exc_info=error)
1980
2697
cleanup()
1981
2698
sys.exit(1)
1982
2699
except KeyboardInterrupt:
1983
2700
if debug:
1984
print >> sys.stderr
1985
logger.debug(u"Server received KeyboardInterrupt")
1986
logger.debug(u"Server exiting")
2701
print("", file=sys.stderr)
2702
logger.debug("Server received KeyboardInterrupt")
2703
logger.debug("Server exiting")
1987
2704
# Must run before the D-Bus bus name gets deregistered
1988
2705
cleanup()
1989
2706
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0