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- Committer: Teddy Hogeborn
- Date: 2014-02-16 02:42:42 UTC
- Revision ID: teddy@recompile.se-20140216024242-9wiw1nkxgt7ohovj
Fix running of self-tests.
* debian/control (Build-Depends): Add Python dependencies to
successfully run self-tests.
* debian/copyright: GPLv3 now has its own license file - use it.
* debian/watch: Set PGP signature URL.
* mandos (main): Bug fix: When running self-tests, set exit code.
* mandos-ctl (main): Cosmetic fix; use os.EX_OK instead of plain 0.
* debian/control (Build-Depends): Add Python dependencies to
successfully run self-tests.
* debian/copyright: GPLv3 now has its own license file - use it.
* debian/watch: Set PGP signature URL.
* mandos (main): Bug fix: When running self-tests, set exit code.
* mandos-ctl (main): Cosmetic fix; use os.EX_OK instead of plain 0.
- files added:
- debian/mandos-client.examples
- debian/source
- network-hooks.d
- files modified:
- .bzrignore
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
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# Everything else is
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# Copyright © 2008-2010 Teddy Hogeborn
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# Copyright © 2008-2010 Björn Påhlsson
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# Copyright © 2008-2014 Teddy Hogeborn
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# Copyright © 2008-2014 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>.
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# Contact the authors at <mandos@recompile.se>.
32
32
#
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from __future__ import division, with_statement, absolute_import
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
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from future_builtins import *
35
38
36
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import SocketServer as socketserver
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40
import socket
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import optparse
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import argparse
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import datetime
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import errno
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import gnutls.crypto
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64
import functools
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import cPickle as pickle
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import multiprocessing
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import types
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import binascii
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import tempfile
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import itertools
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import collections
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import dbus
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74
import dbus.service
80
88
except ImportError:
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SO_BINDTODEVICE = None
82
90
83
84
version = "1.2"
85
86
#logger = logging.getLogger(u'mandos')
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logger = logging.Logger(u'mandos')
91
version = "1.6.3"
92
stored_state_file = "clients.pickle"
93
94
logger = logging.getLogger()
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95
syslogger = (logging.handlers.SysLogHandler
89
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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
90
address = "/dev/log"))
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syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
93
u' %(message)s'))
94
logger.addHandler(syslogger)
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console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
98
u' %(levelname)s:'
99
u' %(message)s'))
100
logger.addHandler(console)
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address = str("/dev/log")))
98
99
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):
105
"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,
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
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ifreq[16:20])[0]
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return interface_index
114
115
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def initlogger(debug, level=logging.WARNING):
117
"""init logger and add loglevel"""
118
119
syslogger.setFormatter(logging.Formatter
120
('Mandos [%(process)d]: %(levelname)s:'
121
' %(message)s'))
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logger.addHandler(syslogger)
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if debug:
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console = logging.StreamHandler()
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console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
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' [%(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
137
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139
class PGPEngine(object):
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"""A simple class for OpenPGP symmetric encryption & decryption"""
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def __init__(self):
142
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
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self.gnupgargs = ['--batch',
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'--home', self.tempdir,
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'--force-mdc',
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'--quiet',
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'--no-use-agent']
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def __enter__(self):
150
return self
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def __exit__(self, exc_type, exc_value, traceback):
153
self._cleanup()
154
return False
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156
def __del__(self):
157
self._cleanup()
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def _cleanup(self):
160
if self.tempdir is not None:
161
# Delete contents of tempdir
162
for root, dirs, files in os.walk(self.tempdir,
163
topdown = False):
164
for filename in files:
165
os.remove(os.path.join(root, filename))
166
for dirname in dirs:
167
os.rmdir(os.path.join(root, dirname))
168
# Remove tempdir
169
os.rmdir(self.tempdir)
170
self.tempdir = None
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172
def password_encode(self, password):
173
# Passphrase can not be empty and can not contain newlines or
174
# NUL bytes. So we prefix it and hex encode it.
175
encoded = b"mandos" + binascii.hexlify(password)
176
if len(encoded) > 2048:
177
# GnuPG can't handle long passwords, so encode differently
178
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
179
.replace(b"\n", b"\\n")
180
.replace(b"\0", b"\\x00"))
181
return encoded
182
183
def encrypt(self, data, password):
184
passphrase = self.password_encode(password)
185
with tempfile.NamedTemporaryFile(dir=self.tempdir
186
) as passfile:
187
passfile.write(passphrase)
188
passfile.flush()
189
proc = subprocess.Popen(['gpg', '--symmetric',
190
'--passphrase-file',
191
passfile.name]
192
+ self.gnupgargs,
193
stdin = subprocess.PIPE,
194
stdout = subprocess.PIPE,
195
stderr = subprocess.PIPE)
196
ciphertext, err = proc.communicate(input = data)
197
if proc.returncode != 0:
198
raise PGPError(err)
199
return ciphertext
200
201
def decrypt(self, data, password):
202
passphrase = self.password_encode(password)
203
with tempfile.NamedTemporaryFile(dir = self.tempdir
204
) as passfile:
205
passfile.write(passphrase)
206
passfile.flush()
207
proc = subprocess.Popen(['gpg', '--decrypt',
208
'--passphrase-file',
209
passfile.name]
210
+ self.gnupgargs,
211
stdin = subprocess.PIPE,
212
stdout = subprocess.PIPE,
213
stderr = subprocess.PIPE)
214
decrypted_plaintext, err = proc.communicate(input
215
= data)
216
if proc.returncode != 0:
217
raise PGPError(err)
218
return decrypted_plaintext
219
101
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102
221
class AvahiError(Exception):
103
222
def __init__(self, value, *args, **kwargs):
119
238
Attributes:
120
239
interface: integer; avahi.IF_UNSPEC or an interface index.
121
240
Used to optionally bind to the specified interface.
122
name: string; Example: u'Mandos'
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type: string; Example: u'_mandos._tcp'.
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See <http://www.dns-sd.org/ServiceTypes.html>
241
name: string; Example: 'Mandos'
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type: string; Example: '_mandos._tcp'.
243
See <https://www.iana.org/assignments/service-names-port-numbers>
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port: integer; what port to announce
126
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TXT: list of strings; TXT record for the service
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domain: string; Domain to publish on, default to .local if empty.
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server: D-Bus Server
134
253
bus: dbus.SystemBus()
135
254
"""
255
136
256
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
137
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servicetype = None, port = None, TXT = None,
138
domain = u"", host = u"", max_renames = 32768,
258
domain = "", host = "", max_renames = 32768,
139
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protocol = avahi.PROTO_UNSPEC, bus = None):
140
260
self.interface = interface
141
261
self.name = name
150
270
self.group = None # our entry group
151
271
self.server = None
152
272
self.bus = bus
273
self.entry_group_state_changed_match = None
274
153
275
def rename(self):
154
276
"""Derived from the Avahi example code"""
155
277
if self.rename_count >= self.max_renames:
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
278
logger.critical("No suitable Zeroconf service name found"
279
" after %i retries, exiting.",
158
280
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 ...",
281
raise AvahiServiceError("Too many renames")
282
self.name = unicode(self.server
283
.GetAlternativeServiceName(self.name))
284
logger.info("Changing Zeroconf service name to %r ...",
162
285
self.name)
163
syslogger.setFormatter(logging.Formatter
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
166
% self.name))
167
286
self.remove()
168
287
try:
169
288
self.add()
170
except dbus.exceptions.DBusException, error:
171
logger.critical(u"DBusException: %s", error)
289
except dbus.exceptions.DBusException as error:
290
logger.critical("D-Bus Exception", exc_info=error)
172
291
self.cleanup()
173
292
os._exit(1)
174
293
self.rename_count += 1
294
175
295
def remove(self):
176
296
"""Derived from the Avahi example code"""
297
if self.entry_group_state_changed_match is not None:
298
self.entry_group_state_changed_match.remove()
299
self.entry_group_state_changed_match = None
177
300
if self.group is not None:
178
301
self.group.Reset()
302
179
303
def add(self):
180
304
"""Derived from the Avahi example code"""
305
self.remove()
181
306
if self.group is None:
182
307
self.group = dbus.Interface(
183
308
self.bus.get_object(avahi.DBUS_NAME,
184
309
self.server.EntryGroupNew()),
185
310
avahi.DBUS_INTERFACE_ENTRY_GROUP)
186
self.group.connect_to_signal('StateChanged',
187
self
188
.entry_group_state_changed)
189
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
311
self.entry_group_state_changed_match = (
312
self.group.connect_to_signal(
313
'StateChanged', self.entry_group_state_changed))
314
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
190
315
self.name, self.type)
191
316
self.group.AddService(
192
317
self.interface,
197
322
dbus.UInt16(self.port),
198
323
avahi.string_array_to_txt_array(self.TXT))
199
324
self.group.Commit()
325
200
326
def entry_group_state_changed(self, state, error):
201
327
"""Derived from the Avahi example code"""
202
logger.debug(u"Avahi entry group state change: %i", state)
328
logger.debug("Avahi entry group state change: %i", state)
203
329
204
330
if state == avahi.ENTRY_GROUP_ESTABLISHED:
205
logger.debug(u"Zeroconf service established.")
331
logger.debug("Zeroconf service established.")
206
332
elif state == avahi.ENTRY_GROUP_COLLISION:
207
logger.warning(u"Zeroconf service name collision.")
333
logger.info("Zeroconf service name collision.")
208
334
self.rename()
209
335
elif state == avahi.ENTRY_GROUP_FAILURE:
210
logger.critical(u"Avahi: Error in group state changed %s",
336
logger.critical("Avahi: Error in group state changed %s",
211
337
unicode(error))
212
raise AvahiGroupError(u"State changed: %s"
213
% unicode(error))
338
raise AvahiGroupError("State changed: {0!s}"
339
.format(error))
340
214
341
def cleanup(self):
215
342
"""Derived from the Avahi example code"""
216
343
if self.group is not None:
217
self.group.Free()
344
try:
345
self.group.Free()
346
except (dbus.exceptions.UnknownMethodException,
347
dbus.exceptions.DBusException):
348
pass
218
349
self.group = None
219
def server_state_changed(self, state):
350
self.remove()
351
352
def server_state_changed(self, state, error=None):
220
353
"""Derived from the Avahi example code"""
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
224
self.remove()
354
logger.debug("Avahi server state change: %i", state)
355
bad_states = { avahi.SERVER_INVALID:
356
"Zeroconf server invalid",
357
avahi.SERVER_REGISTERING: None,
358
avahi.SERVER_COLLISION:
359
"Zeroconf server name collision",
360
avahi.SERVER_FAILURE:
361
"Zeroconf server failure" }
362
if state in bad_states:
363
if bad_states[state] is not None:
364
if error is None:
365
logger.error(bad_states[state])
366
else:
367
logger.error(bad_states[state] + ": %r", error)
368
self.cleanup()
225
369
elif state == avahi.SERVER_RUNNING:
226
370
self.add()
371
else:
372
if error is None:
373
logger.debug("Unknown state: %r", state)
374
else:
375
logger.debug("Unknown state: %r: %r", state, error)
376
227
377
def activate(self):
228
378
"""Derived from the Avahi example code"""
229
379
if self.server is None:
230
380
self.server = dbus.Interface(
231
381
self.bus.get_object(avahi.DBUS_NAME,
232
avahi.DBUS_PATH_SERVER),
382
avahi.DBUS_PATH_SERVER,
383
follow_name_owner_changes=True),
233
384
avahi.DBUS_INTERFACE_SERVER)
234
self.server.connect_to_signal(u"StateChanged",
385
self.server.connect_to_signal("StateChanged",
235
386
self.server_state_changed)
236
387
self.server_state_changed(self.server.GetState())
237
388
238
389
390
class AvahiServiceToSyslog(AvahiService):
391
def rename(self):
392
"""Add the new name to the syslog messages"""
393
ret = AvahiService.rename(self)
394
syslogger.setFormatter(logging.Formatter
395
('Mandos ({0}) [%(process)d]:'
396
' %(levelname)s: %(message)s'
397
.format(self.name)))
398
return ret
399
400
401
def timedelta_to_milliseconds(td):
402
"Convert a datetime.timedelta() to milliseconds"
403
return ((td.days * 24 * 60 * 60 * 1000)
404
+ (td.seconds * 1000)
405
+ (td.microseconds // 1000))
406
407
239
408
class Client(object):
240
409
"""A representation of a client host served by this server.
241
410
242
411
Attributes:
243
_approved: bool(); 'None' if not yet approved/disapproved
412
approved: bool(); 'None' if not yet approved/disapproved
244
413
approval_delay: datetime.timedelta(); Time to wait for approval
245
414
approval_duration: datetime.timedelta(); Duration of one approval
246
415
checker: subprocess.Popen(); a running checker process used
253
422
instance %(name)s can be used in the command.
254
423
checker_initiator_tag: a gobject event source tag, or None
255
424
created: datetime.datetime(); (UTC) object creation
425
client_structure: Object describing what attributes a client has
426
and is used for storing the client at exit
256
427
current_checker_command: string; current running checker_command
257
disable_hook: If set, called by disable() as disable_hook(self)
258
428
disable_initiator_tag: a gobject event source tag, or None
259
429
enabled: bool()
260
430
fingerprint: string (40 or 32 hexadecimal digits); used to
263
433
interval: datetime.timedelta(); How often to start a new checker
264
434
last_approval_request: datetime.datetime(); (UTC) or None
265
435
last_checked_ok: datetime.datetime(); (UTC) or None
266
last_enabled: datetime.datetime(); (UTC)
436
last_checker_status: integer between 0 and 255 reflecting exit
437
status of last checker. -1 reflects crashed
438
checker, -2 means no checker completed yet.
439
last_enabled: datetime.datetime(); (UTC) or None
267
440
name: string; from the config file, used in log messages and
268
441
D-Bus identifiers
269
442
secret: bytestring; sent verbatim (over TLS) to client
270
443
timeout: datetime.timedelta(); How long from last_checked_ok
271
444
until this client is disabled
445
extended_timeout: extra long timeout when secret has been sent
272
446
runtime_expansions: Allowed attributes for runtime expansion.
447
expires: datetime.datetime(); time (UTC) when a client will be
448
disabled, or None
449
server_settings: The server_settings dict from main()
273
450
"""
274
451
275
runtime_expansions = (u"approval_delay", u"approval_duration",
276
u"created", u"enabled", u"fingerprint",
277
u"host", u"interval", u"last_checked_ok",
278
u"last_enabled", u"name", u"timeout")
279
280
@staticmethod
281
def _timedelta_to_milliseconds(td):
282
"Convert a datetime.timedelta() to milliseconds"
283
return ((td.days * 24 * 60 * 60 * 1000)
284
+ (td.seconds * 1000)
285
+ (td.microseconds // 1000))
452
runtime_expansions = ("approval_delay", "approval_duration",
453
"created", "enabled", "expires",
454
"fingerprint", "host", "interval",
455
"last_approval_request", "last_checked_ok",
456
"last_enabled", "name", "timeout")
457
client_defaults = { "timeout": "PT5M",
458
"extended_timeout": "PT15M",
459
"interval": "PT2M",
460
"checker": "fping -q -- %%(host)s",
461
"host": "",
462
"approval_delay": "PT0S",
463
"approval_duration": "PT1S",
464
"approved_by_default": "True",
465
"enabled": "True",
466
}
286
467
287
468
def timeout_milliseconds(self):
288
469
"Return the 'timeout' attribute in milliseconds"
289
return self._timedelta_to_milliseconds(self.timeout)
470
return timedelta_to_milliseconds(self.timeout)
471
472
def extended_timeout_milliseconds(self):
473
"Return the 'extended_timeout' attribute in milliseconds"
474
return timedelta_to_milliseconds(self.extended_timeout)
290
475
291
476
def interval_milliseconds(self):
292
477
"Return the 'interval' attribute in milliseconds"
293
return self._timedelta_to_milliseconds(self.interval)
294
478
return timedelta_to_milliseconds(self.interval)
479
295
480
def approval_delay_milliseconds(self):
296
return self._timedelta_to_milliseconds(self.approval_delay)
297
298
def __init__(self, name = None, disable_hook=None, config=None):
299
"""Note: the 'checker' key in 'config' sets the
300
'checker_command' attribute and *not* the 'checker'
301
attribute."""
481
return timedelta_to_milliseconds(self.approval_delay)
482
483
@staticmethod
484
def config_parser(config):
485
"""Construct a new dict of client settings of this form:
486
{ client_name: {setting_name: value, ...}, ...}
487
with exceptions for any special settings as defined above.
488
NOTE: Must be a pure function. Must return the same result
489
value given the same arguments.
490
"""
491
settings = {}
492
for client_name in config.sections():
493
section = dict(config.items(client_name))
494
client = settings[client_name] = {}
495
496
client["host"] = section["host"]
497
# Reformat values from string types to Python types
498
client["approved_by_default"] = config.getboolean(
499
client_name, "approved_by_default")
500
client["enabled"] = config.getboolean(client_name,
501
"enabled")
502
503
client["fingerprint"] = (section["fingerprint"].upper()
504
.replace(" ", ""))
505
if "secret" in section:
506
client["secret"] = section["secret"].decode("base64")
507
elif "secfile" in section:
508
with open(os.path.expanduser(os.path.expandvars
509
(section["secfile"])),
510
"rb") as secfile:
511
client["secret"] = secfile.read()
512
else:
513
raise TypeError("No secret or secfile for section {0}"
514
.format(section))
515
client["timeout"] = string_to_delta(section["timeout"])
516
client["extended_timeout"] = string_to_delta(
517
section["extended_timeout"])
518
client["interval"] = string_to_delta(section["interval"])
519
client["approval_delay"] = string_to_delta(
520
section["approval_delay"])
521
client["approval_duration"] = string_to_delta(
522
section["approval_duration"])
523
client["checker_command"] = section["checker"]
524
client["last_approval_request"] = None
525
client["last_checked_ok"] = None
526
client["last_checker_status"] = -2
527
528
return settings
529
530
def __init__(self, settings, name = None, server_settings=None):
302
531
self.name = name
303
if config is None:
304
config = {}
305
logger.debug(u"Creating client %r", self.name)
532
if server_settings is None:
533
server_settings = {}
534
self.server_settings = server_settings
535
# adding all client settings
536
for setting, value in settings.iteritems():
537
setattr(self, setting, value)
538
539
if self.enabled:
540
if not hasattr(self, "last_enabled"):
541
self.last_enabled = datetime.datetime.utcnow()
542
if not hasattr(self, "expires"):
543
self.expires = (datetime.datetime.utcnow()
544
+ self.timeout)
545
else:
546
self.last_enabled = None
547
self.expires = None
548
549
logger.debug("Creating client %r", self.name)
306
550
# Uppercase and remove spaces from fingerprint for later
307
551
# comparison purposes with return value from the fingerprint()
308
552
# function
309
self.fingerprint = (config[u"fingerprint"].upper()
310
.replace(u" ", u""))
311
logger.debug(u" Fingerprint: %s", self.fingerprint)
312
if u"secret" in config:
313
self.secret = config[u"secret"].decode(u"base64")
314
elif u"secfile" in config:
315
with open(os.path.expanduser(os.path.expandvars
316
(config[u"secfile"])),
317
"rb") as secfile:
318
self.secret = secfile.read()
319
else:
320
raise TypeError(u"No secret or secfile for client %s"
321
% self.name)
322
self.host = config.get(u"host", u"")
323
self.created = datetime.datetime.utcnow()
324
self.enabled = False
325
self.last_approval_request = None
326
self.last_enabled = None
327
self.last_checked_ok = None
328
self.timeout = string_to_delta(config[u"timeout"])
329
self.interval = string_to_delta(config[u"interval"])
330
self.disable_hook = disable_hook
553
logger.debug(" Fingerprint: %s", self.fingerprint)
554
self.created = settings.get("created",
555
datetime.datetime.utcnow())
556
557
# attributes specific for this server instance
331
558
self.checker = None
332
559
self.checker_initiator_tag = None
333
560
self.disable_initiator_tag = None
334
561
self.checker_callback_tag = None
335
self.checker_command = config[u"checker"]
336
562
self.current_checker_command = None
337
self.last_connect = None
338
self._approved = None
339
self.approved_by_default = config.get(u"approved_by_default",
340
True)
563
self.approved = None
341
564
self.approvals_pending = 0
342
self.approval_delay = string_to_delta(
343
config[u"approval_delay"])
344
self.approval_duration = string_to_delta(
345
config[u"approval_duration"])
346
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
565
self.changedstate = (multiprocessing_manager
566
.Condition(multiprocessing_manager
567
.Lock()))
568
self.client_structure = [attr for attr in
569
self.__dict__.iterkeys()
570
if not attr.startswith("_")]
571
self.client_structure.append("client_structure")
572
573
for name, t in inspect.getmembers(type(self),
574
lambda obj:
575
isinstance(obj,
576
property)):
577
if not name.startswith("_"):
578
self.client_structure.append(name)
347
579
580
# Send notice to process children that client state has changed
348
581
def send_changedstate(self):
349
self.changedstate.acquire()
350
self.changedstate.notify_all()
351
self.changedstate.release()
352
582
with self.changedstate:
583
self.changedstate.notify_all()
584
353
585
def enable(self):
354
586
"""Start this client's checker and timeout hooks"""
355
if getattr(self, u"enabled", False):
587
if getattr(self, "enabled", False):
356
588
# Already enabled
357
589
return
358
self.send_changedstate()
590
self.expires = datetime.datetime.utcnow() + self.timeout
591
self.enabled = True
359
592
self.last_enabled = datetime.datetime.utcnow()
593
self.init_checker()
594
self.send_changedstate()
595
596
def disable(self, quiet=True):
597
"""Disable this client."""
598
if not getattr(self, "enabled", False):
599
return False
600
if not quiet:
601
logger.info("Disabling client %s", self.name)
602
if getattr(self, "disable_initiator_tag", None) is not None:
603
gobject.source_remove(self.disable_initiator_tag)
604
self.disable_initiator_tag = None
605
self.expires = None
606
if getattr(self, "checker_initiator_tag", None) is not None:
607
gobject.source_remove(self.checker_initiator_tag)
608
self.checker_initiator_tag = None
609
self.stop_checker()
610
self.enabled = False
611
if not quiet:
612
self.send_changedstate()
613
# Do not run this again if called by a gobject.timeout_add
614
return False
615
616
def __del__(self):
617
self.disable()
618
619
def init_checker(self):
360
620
# Schedule a new checker to be started an 'interval' from now,
361
621
# and every interval from then on.
622
if self.checker_initiator_tag is not None:
623
gobject.source_remove(self.checker_initiator_tag)
362
624
self.checker_initiator_tag = (gobject.timeout_add
363
625
(self.interval_milliseconds(),
364
626
self.start_checker))
365
627
# Schedule a disable() when 'timeout' has passed
628
if self.disable_initiator_tag is not None:
629
gobject.source_remove(self.disable_initiator_tag)
366
630
self.disable_initiator_tag = (gobject.timeout_add
367
631
(self.timeout_milliseconds(),
368
632
self.disable))
369
self.enabled = True
370
633
# Also start a new checker *right now*.
371
634
self.start_checker()
372
635
373
def disable(self, quiet=True):
374
"""Disable this client."""
375
if not getattr(self, "enabled", False):
376
return False
377
if not quiet:
378
self.send_changedstate()
379
if not quiet:
380
logger.info(u"Disabling client %s", self.name)
381
if getattr(self, u"disable_initiator_tag", False):
382
gobject.source_remove(self.disable_initiator_tag)
383
self.disable_initiator_tag = None
384
if getattr(self, u"checker_initiator_tag", False):
385
gobject.source_remove(self.checker_initiator_tag)
386
self.checker_initiator_tag = None
387
self.stop_checker()
388
if self.disable_hook:
389
self.disable_hook(self)
390
self.enabled = False
391
# Do not run this again if called by a gobject.timeout_add
392
return False
393
394
def __del__(self):
395
self.disable_hook = None
396
self.disable()
397
398
636
def checker_callback(self, pid, condition, command):
399
637
"""The checker has completed, so take appropriate actions."""
400
638
self.checker_callback_tag = None
401
639
self.checker = None
402
640
if os.WIFEXITED(condition):
403
exitstatus = os.WEXITSTATUS(condition)
404
if exitstatus == 0:
405
logger.info(u"Checker for %(name)s succeeded",
641
self.last_checker_status = os.WEXITSTATUS(condition)
642
if self.last_checker_status == 0:
643
logger.info("Checker for %(name)s succeeded",
406
644
vars(self))
407
645
self.checked_ok()
408
646
else:
409
logger.info(u"Checker for %(name)s failed",
647
logger.info("Checker for %(name)s failed",
410
648
vars(self))
411
649
else:
412
logger.warning(u"Checker for %(name)s crashed?",
650
self.last_checker_status = -1
651
logger.warning("Checker for %(name)s crashed?",
413
652
vars(self))
414
653
415
654
def checked_ok(self):
416
"""Bump up the timeout for this client.
417
418
This should only be called when the client has been seen,
419
alive and well.
420
"""
655
"""Assert that the client has been seen, alive and well."""
421
656
self.last_checked_ok = datetime.datetime.utcnow()
422
gobject.source_remove(self.disable_initiator_tag)
423
self.disable_initiator_tag = (gobject.timeout_add
424
(self.timeout_milliseconds(),
425
self.disable))
657
self.last_checker_status = 0
658
self.bump_timeout()
659
660
def bump_timeout(self, timeout=None):
661
"""Bump up the timeout for this client."""
662
if timeout is None:
663
timeout = self.timeout
664
if self.disable_initiator_tag is not None:
665
gobject.source_remove(self.disable_initiator_tag)
666
self.disable_initiator_tag = None
667
if getattr(self, "enabled", False):
668
self.disable_initiator_tag = (gobject.timeout_add
669
(timedelta_to_milliseconds
670
(timeout), self.disable))
671
self.expires = datetime.datetime.utcnow() + timeout
426
672
427
673
def need_approval(self):
428
674
self.last_approval_request = datetime.datetime.utcnow()
433
679
If a checker already exists, leave it running and do
434
680
nothing."""
435
681
# The reason for not killing a running checker is that if we
436
# did that, then if a checker (for some reason) started
437
# running slowly and taking more than 'interval' time, the
438
# client would inevitably timeout, since no checker would get
439
# a chance to run to completion. If we instead leave running
682
# did that, and if a checker (for some reason) started running
683
# slowly and taking more than 'interval' time, then the client
684
# would inevitably timeout, since no checker would get a
685
# chance to run to completion. If we instead leave running
440
686
# checkers alone, the checker would have to take more time
441
687
# than 'timeout' for the client to be disabled, which is as it
442
688
# should be.
444
690
# If a checker exists, make sure it is not a zombie
445
691
try:
446
692
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
447
except (AttributeError, OSError), error:
448
if (isinstance(error, OSError)
449
and error.errno != errno.ECHILD):
450
raise error
693
except AttributeError:
694
pass
695
except OSError as error:
696
if error.errno != errno.ECHILD:
697
raise
451
698
else:
452
699
if pid:
453
logger.warning(u"Checker was a zombie")
700
logger.warning("Checker was a zombie")
454
701
gobject.source_remove(self.checker_callback_tag)
455
702
self.checker_callback(pid, status,
456
703
self.current_checker_command)
457
704
# Start a new checker if needed
458
705
if self.checker is None:
706
# Escape attributes for the shell
707
escaped_attrs = dict(
708
(attr, re.escape(unicode(getattr(self, attr))))
709
for attr in
710
self.runtime_expansions)
459
711
try:
460
# In case checker_command has exactly one % operator
461
command = self.checker_command % self.host
462
except TypeError:
463
# Escape attributes for the shell
464
escaped_attrs = dict(
465
(attr,
466
re.escape(unicode(str(getattr(self, attr, u"")),
467
errors=
468
u'replace')))
469
for attr in
470
self.runtime_expansions)
471
472
try:
473
command = self.checker_command % escaped_attrs
474
except TypeError, error:
475
logger.error(u'Could not format string "%s":'
476
u' %s', self.checker_command, error)
477
return True # Try again later
712
command = self.checker_command % escaped_attrs
713
except TypeError as error:
714
logger.error('Could not format string "%s"',
715
self.checker_command, exc_info=error)
716
return True # Try again later
478
717
self.current_checker_command = command
479
718
try:
480
logger.info(u"Starting checker %r for %s",
719
logger.info("Starting checker %r for %s",
481
720
command, self.name)
482
721
# We don't need to redirect stdout and stderr, since
483
722
# in normal mode, that is already done by daemon(),
484
723
# and in debug mode we don't want to. (Stdin is
485
724
# always replaced by /dev/null.)
725
# The exception is when not debugging but nevertheless
726
# running in the foreground; use the previously
727
# created wnull.
728
popen_args = {}
729
if (not self.server_settings["debug"]
730
and self.server_settings["foreground"]):
731
popen_args.update({"stdout": wnull,
732
"stderr": wnull })
486
733
self.checker = subprocess.Popen(command,
487
734
close_fds=True,
488
shell=True, cwd=u"/")
489
self.checker_callback_tag = (gobject.child_watch_add
490
(self.checker.pid,
491
self.checker_callback,
492
data=command))
493
# The checker may have completed before the gobject
494
# watch was added. Check for this.
735
shell=True, cwd="/",
736
**popen_args)
737
except OSError as error:
738
logger.error("Failed to start subprocess",
739
exc_info=error)
740
return True
741
self.checker_callback_tag = (gobject.child_watch_add
742
(self.checker.pid,
743
self.checker_callback,
744
data=command))
745
# The checker may have completed before the gobject
746
# watch was added. Check for this.
747
try:
495
748
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
496
if pid:
497
gobject.source_remove(self.checker_callback_tag)
498
self.checker_callback(pid, status, command)
499
except OSError, error:
500
logger.error(u"Failed to start subprocess: %s",
501
error)
749
except OSError as error:
750
if error.errno == errno.ECHILD:
751
# This should never happen
752
logger.error("Child process vanished",
753
exc_info=error)
754
return True
755
raise
756
if pid:
757
gobject.source_remove(self.checker_callback_tag)
758
self.checker_callback(pid, status, command)
502
759
# Re-run this periodically if run by gobject.timeout_add
503
760
return True
504
761
507
764
if self.checker_callback_tag:
508
765
gobject.source_remove(self.checker_callback_tag)
509
766
self.checker_callback_tag = None
510
if getattr(self, u"checker", None) is None:
767
if getattr(self, "checker", None) is None:
511
768
return
512
logger.debug(u"Stopping checker for %(name)s", vars(self))
769
logger.debug("Stopping checker for %(name)s", vars(self))
513
770
try:
514
os.kill(self.checker.pid, signal.SIGTERM)
771
self.checker.terminate()
515
772
#time.sleep(0.5)
516
773
#if self.checker.poll() is None:
517
# os.kill(self.checker.pid, signal.SIGKILL)
518
except OSError, error:
774
# self.checker.kill()
775
except OSError as error:
519
776
if error.errno != errno.ESRCH: # No such process
520
777
raise
521
778
self.checker = None
522
779
523
def dbus_service_property(dbus_interface, signature=u"v",
524
access=u"readwrite", byte_arrays=False):
780
781
def dbus_service_property(dbus_interface, signature="v",
782
access="readwrite", byte_arrays=False):
525
783
"""Decorators for marking methods of a DBusObjectWithProperties to
526
784
become properties on the D-Bus.
527
785
534
792
"""
535
793
# Encoding deeply encoded byte arrays is not supported yet by the
536
794
# "Set" method, so we fail early here:
537
if byte_arrays and signature != u"ay":
538
raise ValueError(u"Byte arrays not supported for non-'ay'"
539
u" signature %r" % signature)
795
if byte_arrays and signature != "ay":
796
raise ValueError("Byte arrays not supported for non-'ay'"
797
" signature {0!r}".format(signature))
540
798
def decorator(func):
541
799
func._dbus_is_property = True
542
800
func._dbus_interface = dbus_interface
543
801
func._dbus_signature = signature
544
802
func._dbus_access = access
545
803
func._dbus_name = func.__name__
546
if func._dbus_name.endswith(u"_dbus_property"):
804
if func._dbus_name.endswith("_dbus_property"):
547
805
func._dbus_name = func._dbus_name[:-14]
548
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
806
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
807
return func
808
return decorator
809
810
811
def dbus_interface_annotations(dbus_interface):
812
"""Decorator for marking functions returning interface annotations
813
814
Usage:
815
816
@dbus_interface_annotations("org.example.Interface")
817
def _foo(self): # Function name does not matter
818
return {"org.freedesktop.DBus.Deprecated": "true",
819
"org.freedesktop.DBus.Property.EmitsChangedSignal":
820
"false"}
821
"""
822
def decorator(func):
823
func._dbus_is_interface = True
824
func._dbus_interface = dbus_interface
825
func._dbus_name = dbus_interface
826
return func
827
return decorator
828
829
830
def dbus_annotations(annotations):
831
"""Decorator to annotate D-Bus methods, signals or properties
832
Usage:
833
834
@dbus_service_property("org.example.Interface", signature="b",
835
access="r")
836
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
837
"org.freedesktop.DBus.Property."
838
"EmitsChangedSignal": "false"})
839
def Property_dbus_property(self):
840
return dbus.Boolean(False)
841
"""
842
def decorator(func):
843
func._dbus_annotations = annotations
549
844
return func
550
845
return decorator
551
846
571
866
572
867
class DBusObjectWithProperties(dbus.service.Object):
573
868
"""A D-Bus object with properties.
574
869
575
870
Classes inheriting from this can use the dbus_service_property
576
871
decorator to expose methods as D-Bus properties. It exposes the
577
872
standard Get(), Set(), and GetAll() methods on the D-Bus.
578
873
"""
579
874
580
875
@staticmethod
581
def _is_dbus_property(obj):
582
return getattr(obj, u"_dbus_is_property", False)
876
def _is_dbus_thing(thing):
877
"""Returns a function testing if an attribute is a D-Bus thing
878
879
If called like _is_dbus_thing("method") it returns a function
880
suitable for use as predicate to inspect.getmembers().
881
"""
882
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
883
False)
583
884
584
def _get_all_dbus_properties(self):
885
def _get_all_dbus_things(self, thing):
585
886
"""Returns a generator of (name, attribute) pairs
586
887
"""
587
return ((prop._dbus_name, prop)
588
for name, prop in
589
inspect.getmembers(self, self._is_dbus_property))
888
return ((getattr(athing.__get__(self), "_dbus_name",
889
name),
890
athing.__get__(self))
891
for cls in self.__class__.__mro__
892
for name, athing in
893
inspect.getmembers(cls,
894
self._is_dbus_thing(thing)))
590
895
591
896
def _get_dbus_property(self, interface_name, property_name):
592
897
"""Returns a bound method if one exists which is a D-Bus
593
898
property with the specified name and interface.
594
899
"""
595
for name in (property_name,
596
property_name + u"_dbus_property"):
597
prop = getattr(self, name, None)
598
if (prop is None
599
or not self._is_dbus_property(prop)
600
or prop._dbus_name != property_name
601
or (interface_name and prop._dbus_interface
602
and interface_name != prop._dbus_interface)):
603
continue
604
return prop
900
for cls in self.__class__.__mro__:
901
for name, value in (inspect.getmembers
902
(cls,
903
self._is_dbus_thing("property"))):
904
if (value._dbus_name == property_name
905
and value._dbus_interface == interface_name):
906
return value.__get__(self)
907
605
908
# No such property
606
raise DBusPropertyNotFound(self.dbus_object_path + u":"
607
+ interface_name + u"."
909
raise DBusPropertyNotFound(self.dbus_object_path + ":"
910
+ interface_name + "."
608
911
+ property_name)
609
912
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
611
out_signature=u"v")
913
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
914
out_signature="v")
612
915
def Get(self, interface_name, property_name):
613
916
"""Standard D-Bus property Get() method, see D-Bus standard.
614
917
"""
615
918
prop = self._get_dbus_property(interface_name, property_name)
616
if prop._dbus_access == u"write":
919
if prop._dbus_access == "write":
617
920
raise DBusPropertyAccessException(property_name)
618
921
value = prop()
619
if not hasattr(value, u"variant_level"):
922
if not hasattr(value, "variant_level"):
620
923
return value
621
924
return type(value)(value, variant_level=value.variant_level+1)
622
925
623
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
926
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
624
927
def Set(self, interface_name, property_name, value):
625
928
"""Standard D-Bus property Set() method, see D-Bus standard.
626
929
"""
627
930
prop = self._get_dbus_property(interface_name, property_name)
628
if prop._dbus_access == u"read":
931
if prop._dbus_access == "read":
629
932
raise DBusPropertyAccessException(property_name)
630
if prop._dbus_get_args_options[u"byte_arrays"]:
933
if prop._dbus_get_args_options["byte_arrays"]:
631
934
# The byte_arrays option is not supported yet on
632
935
# signatures other than "ay".
633
if prop._dbus_signature != u"ay":
634
raise ValueError
635
value = dbus.ByteArray(''.join(unichr(byte)
636
for byte in value))
936
if prop._dbus_signature != "ay":
937
raise ValueError("Byte arrays not supported for non-"
938
"'ay' signature {0!r}"
939
.format(prop._dbus_signature))
940
value = dbus.ByteArray(b''.join(chr(byte)
941
for byte in value))
637
942
prop(value)
638
943
639
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
640
out_signature=u"a{sv}")
944
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
945
out_signature="a{sv}")
641
946
def GetAll(self, interface_name):
642
947
"""Standard D-Bus property GetAll() method, see D-Bus
643
948
standard.
644
949
645
950
Note: Will not include properties with access="write".
646
951
"""
647
all = {}
648
for name, prop in self._get_all_dbus_properties():
952
properties = {}
953
for name, prop in self._get_all_dbus_things("property"):
649
954
if (interface_name
650
955
and interface_name != prop._dbus_interface):
651
956
# Interface non-empty but did not match
652
957
continue
653
958
# Ignore write-only properties
654
if prop._dbus_access == u"write":
959
if prop._dbus_access == "write":
655
960
continue
656
961
value = prop()
657
if not hasattr(value, u"variant_level"):
658
all[name] = value
962
if not hasattr(value, "variant_level"):
963
properties[name] = value
659
964
continue
660
all[name] = type(value)(value, variant_level=
661
value.variant_level+1)
662
return dbus.Dictionary(all, signature=u"sv")
965
properties[name] = type(value)(value, variant_level=
966
value.variant_level+1)
967
return dbus.Dictionary(properties, signature="sv")
663
968
664
969
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
665
out_signature=u"s",
970
out_signature="s",
666
971
path_keyword='object_path',
667
972
connection_keyword='connection')
668
973
def Introspect(self, object_path, connection):
669
"""Standard D-Bus method, overloaded to insert property tags.
974
"""Overloading of standard D-Bus method.
975
976
Inserts property tags and interface annotation tags.
670
977
"""
671
978
xmlstring = dbus.service.Object.Introspect(self, object_path,
672
979
connection)
673
980
try:
674
981
document = xml.dom.minidom.parseString(xmlstring)
675
982
def make_tag(document, name, prop):
676
e = document.createElement(u"property")
677
e.setAttribute(u"name", name)
678
e.setAttribute(u"type", prop._dbus_signature)
679
e.setAttribute(u"access", prop._dbus_access)
983
e = document.createElement("property")
984
e.setAttribute("name", name)
985
e.setAttribute("type", prop._dbus_signature)
986
e.setAttribute("access", prop._dbus_access)
680
987
return e
681
for if_tag in document.getElementsByTagName(u"interface"):
988
for if_tag in document.getElementsByTagName("interface"):
989
# Add property tags
682
990
for tag in (make_tag(document, name, prop)
683
991
for name, prop
684
in self._get_all_dbus_properties()
992
in self._get_all_dbus_things("property")
685
993
if prop._dbus_interface
686
== if_tag.getAttribute(u"name")):
994
== if_tag.getAttribute("name")):
687
995
if_tag.appendChild(tag)
996
# Add annotation tags
997
for typ in ("method", "signal", "property"):
998
for tag in if_tag.getElementsByTagName(typ):
999
annots = dict()
1000
for name, prop in (self.
1001
_get_all_dbus_things(typ)):
1002
if (name == tag.getAttribute("name")
1003
and prop._dbus_interface
1004
== if_tag.getAttribute("name")):
1005
annots.update(getattr
1006
(prop,
1007
"_dbus_annotations",
1008
{}))
1009
for name, value in annots.iteritems():
1010
ann_tag = document.createElement(
1011
"annotation")
1012
ann_tag.setAttribute("name", name)
1013
ann_tag.setAttribute("value", value)
1014
tag.appendChild(ann_tag)
1015
# Add interface annotation tags
1016
for annotation, value in dict(
1017
itertools.chain.from_iterable(
1018
annotations().iteritems()
1019
for name, annotations in
1020
self._get_all_dbus_things("interface")
1021
if name == if_tag.getAttribute("name")
1022
)).iteritems():
1023
ann_tag = document.createElement("annotation")
1024
ann_tag.setAttribute("name", annotation)
1025
ann_tag.setAttribute("value", value)
1026
if_tag.appendChild(ann_tag)
688
1027
# Add the names to the return values for the
689
1028
# "org.freedesktop.DBus.Properties" methods
690
if (if_tag.getAttribute(u"name")
691
== u"org.freedesktop.DBus.Properties"):
692
for cn in if_tag.getElementsByTagName(u"method"):
693
if cn.getAttribute(u"name") == u"Get":
694
for arg in cn.getElementsByTagName(u"arg"):
695
if (arg.getAttribute(u"direction")
696
== u"out"):
697
arg.setAttribute(u"name", u"value")
698
elif cn.getAttribute(u"name") == u"GetAll":
699
for arg in cn.getElementsByTagName(u"arg"):
700
if (arg.getAttribute(u"direction")
701
== u"out"):
702
arg.setAttribute(u"name", u"props")
703
xmlstring = document.toxml(u"utf-8")
1029
if (if_tag.getAttribute("name")
1030
== "org.freedesktop.DBus.Properties"):
1031
for cn in if_tag.getElementsByTagName("method"):
1032
if cn.getAttribute("name") == "Get":
1033
for arg in cn.getElementsByTagName("arg"):
1034
if (arg.getAttribute("direction")
1035
== "out"):
1036
arg.setAttribute("name", "value")
1037
elif cn.getAttribute("name") == "GetAll":
1038
for arg in cn.getElementsByTagName("arg"):
1039
if (arg.getAttribute("direction")
1040
== "out"):
1041
arg.setAttribute("name", "props")
1042
xmlstring = document.toxml("utf-8")
704
1043
document.unlink()
705
1044
except (AttributeError, xml.dom.DOMException,
706
xml.parsers.expat.ExpatError), error:
707
logger.error(u"Failed to override Introspection method",
708
error)
1045
xml.parsers.expat.ExpatError) as error:
1046
logger.error("Failed to override Introspection method",
1047
exc_info=error)
709
1048
return xmlstring
710
1049
711
1050
1051
def datetime_to_dbus(dt, variant_level=0):
1052
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1053
if dt is None:
1054
return dbus.String("", variant_level = variant_level)
1055
return dbus.String(dt.isoformat(),
1056
variant_level=variant_level)
1057
1058
1059
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1060
"""A class decorator; applied to a subclass of
1061
dbus.service.Object, it will add alternate D-Bus attributes with
1062
interface names according to the "alt_interface_names" mapping.
1063
Usage:
1064
1065
@alternate_dbus_interfaces({"org.example.Interface":
1066
"net.example.AlternateInterface"})
1067
class SampleDBusObject(dbus.service.Object):
1068
@dbus.service.method("org.example.Interface")
1069
def SampleDBusMethod():
1070
pass
1071
1072
The above "SampleDBusMethod" on "SampleDBusObject" will be
1073
reachable via two interfaces: "org.example.Interface" and
1074
"net.example.AlternateInterface", the latter of which will have
1075
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1076
"true", unless "deprecate" is passed with a False value.
1077
1078
This works for methods and signals, and also for D-Bus properties
1079
(from DBusObjectWithProperties) and interfaces (from the
1080
dbus_interface_annotations decorator).
1081
"""
1082
def wrapper(cls):
1083
for orig_interface_name, alt_interface_name in (
1084
alt_interface_names.iteritems()):
1085
attr = {}
1086
interface_names = set()
1087
# Go though all attributes of the class
1088
for attrname, attribute in inspect.getmembers(cls):
1089
# Ignore non-D-Bus attributes, and D-Bus attributes
1090
# with the wrong interface name
1091
if (not hasattr(attribute, "_dbus_interface")
1092
or not attribute._dbus_interface
1093
.startswith(orig_interface_name)):
1094
continue
1095
# Create an alternate D-Bus interface name based on
1096
# the current name
1097
alt_interface = (attribute._dbus_interface
1098
.replace(orig_interface_name,
1099
alt_interface_name))
1100
interface_names.add(alt_interface)
1101
# Is this a D-Bus signal?
1102
if getattr(attribute, "_dbus_is_signal", False):
1103
# Extract the original non-method undecorated
1104
# function by black magic
1105
nonmethod_func = (dict(
1106
zip(attribute.func_code.co_freevars,
1107
attribute.__closure__))["func"]
1108
.cell_contents)
1109
# Create a new, but exactly alike, function
1110
# object, and decorate it to be a new D-Bus signal
1111
# with the alternate D-Bus interface name
1112
new_function = (dbus.service.signal
1113
(alt_interface,
1114
attribute._dbus_signature)
1115
(types.FunctionType(
1116
nonmethod_func.func_code,
1117
nonmethod_func.func_globals,
1118
nonmethod_func.func_name,
1119
nonmethod_func.func_defaults,
1120
nonmethod_func.func_closure)))
1121
# Copy annotations, if any
1122
try:
1123
new_function._dbus_annotations = (
1124
dict(attribute._dbus_annotations))
1125
except AttributeError:
1126
pass
1127
# Define a creator of a function to call both the
1128
# original and alternate functions, so both the
1129
# original and alternate signals gets sent when
1130
# the function is called
1131
def fixscope(func1, func2):
1132
"""This function is a scope container to pass
1133
func1 and func2 to the "call_both" function
1134
outside of its arguments"""
1135
def call_both(*args, **kwargs):
1136
"""This function will emit two D-Bus
1137
signals by calling func1 and func2"""
1138
func1(*args, **kwargs)
1139
func2(*args, **kwargs)
1140
return call_both
1141
# Create the "call_both" function and add it to
1142
# the class
1143
attr[attrname] = fixscope(attribute, new_function)
1144
# Is this a D-Bus method?
1145
elif getattr(attribute, "_dbus_is_method", False):
1146
# Create a new, but exactly alike, function
1147
# object. Decorate it to be a new D-Bus method
1148
# with the alternate D-Bus interface name. Add it
1149
# to the class.
1150
attr[attrname] = (dbus.service.method
1151
(alt_interface,
1152
attribute._dbus_in_signature,
1153
attribute._dbus_out_signature)
1154
(types.FunctionType
1155
(attribute.func_code,
1156
attribute.func_globals,
1157
attribute.func_name,
1158
attribute.func_defaults,
1159
attribute.func_closure)))
1160
# Copy annotations, if any
1161
try:
1162
attr[attrname]._dbus_annotations = (
1163
dict(attribute._dbus_annotations))
1164
except AttributeError:
1165
pass
1166
# Is this a D-Bus property?
1167
elif getattr(attribute, "_dbus_is_property", False):
1168
# Create a new, but exactly alike, function
1169
# object, and decorate it to be a new D-Bus
1170
# property with the alternate D-Bus interface
1171
# name. Add it to the class.
1172
attr[attrname] = (dbus_service_property
1173
(alt_interface,
1174
attribute._dbus_signature,
1175
attribute._dbus_access,
1176
attribute
1177
._dbus_get_args_options
1178
["byte_arrays"])
1179
(types.FunctionType
1180
(attribute.func_code,
1181
attribute.func_globals,
1182
attribute.func_name,
1183
attribute.func_defaults,
1184
attribute.func_closure)))
1185
# Copy annotations, if any
1186
try:
1187
attr[attrname]._dbus_annotations = (
1188
dict(attribute._dbus_annotations))
1189
except AttributeError:
1190
pass
1191
# Is this a D-Bus interface?
1192
elif getattr(attribute, "_dbus_is_interface", False):
1193
# Create a new, but exactly alike, function
1194
# object. Decorate it to be a new D-Bus interface
1195
# with the alternate D-Bus interface name. Add it
1196
# to the class.
1197
attr[attrname] = (dbus_interface_annotations
1198
(alt_interface)
1199
(types.FunctionType
1200
(attribute.func_code,
1201
attribute.func_globals,
1202
attribute.func_name,
1203
attribute.func_defaults,
1204
attribute.func_closure)))
1205
if deprecate:
1206
# Deprecate all alternate interfaces
1207
iname="_AlternateDBusNames_interface_annotation{0}"
1208
for interface_name in interface_names:
1209
@dbus_interface_annotations(interface_name)
1210
def func(self):
1211
return { "org.freedesktop.DBus.Deprecated":
1212
"true" }
1213
# Find an unused name
1214
for aname in (iname.format(i)
1215
for i in itertools.count()):
1216
if aname not in attr:
1217
attr[aname] = func
1218
break
1219
if interface_names:
1220
# Replace the class with a new subclass of it with
1221
# methods, signals, etc. as created above.
1222
cls = type(b"{0}Alternate".format(cls.__name__),
1223
(cls,), attr)
1224
return cls
1225
return wrapper
1226
1227
1228
@alternate_dbus_interfaces({"se.recompile.Mandos":
1229
"se.bsnet.fukt.Mandos"})
712
1230
class ClientDBus(Client, DBusObjectWithProperties):
713
1231
"""A Client class using D-Bus
714
1232
718
1236
"""
719
1237
720
1238
runtime_expansions = (Client.runtime_expansions
721
+ (u"dbus_object_path",))
1239
+ ("dbus_object_path",))
722
1240
723
1241
# dbus.service.Object doesn't use super(), so we can't either.
724
1242
725
1243
def __init__(self, bus = None, *args, **kwargs):
726
self._approvals_pending = 0
727
1244
self.bus = bus
728
1245
Client.__init__(self, *args, **kwargs)
729
1246
# Only now, when this client is initialized, can it show up on
730
1247
# the D-Bus
731
1248
client_object_name = unicode(self.name).translate(
732
{ord(u"."): ord(u"_"),
733
ord(u"-"): ord(u"_")})
1249
{ord("."): ord("_"),
1250
ord("-"): ord("_")})
734
1251
self.dbus_object_path = (dbus.ObjectPath
735
(u"/clients/" + client_object_name))
1252
("/clients/" + client_object_name))
736
1253
DBusObjectWithProperties.__init__(self, self.bus,
737
1254
self.dbus_object_path)
738
739
def _get_approvals_pending(self):
740
return self._approvals_pending
741
def _set_approvals_pending(self, value):
742
old_value = self._approvals_pending
743
self._approvals_pending = value
744
bval = bool(value)
745
if (hasattr(self, "dbus_object_path")
746
and bval is not bool(old_value)):
747
dbus_bool = dbus.Boolean(bval, variant_level=1)
748
self.PropertyChanged(dbus.String(u"ApprovalPending"),
749
dbus_bool)
750
751
approvals_pending = property(_get_approvals_pending,
752
_set_approvals_pending)
753
del _get_approvals_pending, _set_approvals_pending
754
755
@staticmethod
756
def _datetime_to_dbus(dt, variant_level=0):
757
"""Convert a UTC datetime.datetime() to a D-Bus type."""
758
return dbus.String(dt.isoformat(),
759
variant_level=variant_level)
760
761
def enable(self):
762
oldstate = getattr(self, u"enabled", False)
763
r = Client.enable(self)
764
if oldstate != self.enabled:
765
# Emit D-Bus signals
766
self.PropertyChanged(dbus.String(u"Enabled"),
767
dbus.Boolean(True, variant_level=1))
768
self.PropertyChanged(
769
dbus.String(u"LastEnabled"),
770
self._datetime_to_dbus(self.last_enabled,
771
variant_level=1))
772
return r
773
774
def disable(self, quiet = False):
775
oldstate = getattr(self, u"enabled", False)
776
r = Client.disable(self, quiet=quiet)
777
if not quiet and oldstate != self.enabled:
778
# Emit D-Bus signal
779
self.PropertyChanged(dbus.String(u"Enabled"),
780
dbus.Boolean(False, variant_level=1))
781
return r
1255
1256
def notifychangeproperty(transform_func,
1257
dbus_name, type_func=lambda x: x,
1258
variant_level=1):
1259
""" Modify a variable so that it's a property which announces
1260
its changes to DBus.
1261
1262
transform_fun: Function that takes a value and a variant_level
1263
and transforms it to a D-Bus type.
1264
dbus_name: D-Bus name of the variable
1265
type_func: Function that transform the value before sending it
1266
to the D-Bus. Default: no transform
1267
variant_level: D-Bus variant level. Default: 1
1268
"""
1269
attrname = "_{0}".format(dbus_name)
1270
def setter(self, value):
1271
if hasattr(self, "dbus_object_path"):
1272
if (not hasattr(self, attrname) or
1273
type_func(getattr(self, attrname, None))
1274
!= type_func(value)):
1275
dbus_value = transform_func(type_func(value),
1276
variant_level
1277
=variant_level)
1278
self.PropertyChanged(dbus.String(dbus_name),
1279
dbus_value)
1280
setattr(self, attrname, value)
1281
1282
return property(lambda self: getattr(self, attrname), setter)
1283
1284
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1285
approvals_pending = notifychangeproperty(dbus.Boolean,
1286
"ApprovalPending",
1287
type_func = bool)
1288
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1289
last_enabled = notifychangeproperty(datetime_to_dbus,
1290
"LastEnabled")
1291
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1292
type_func = lambda checker:
1293
checker is not None)
1294
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1295
"LastCheckedOK")
1296
last_checker_status = notifychangeproperty(dbus.Int16,
1297
"LastCheckerStatus")
1298
last_approval_request = notifychangeproperty(
1299
datetime_to_dbus, "LastApprovalRequest")
1300
approved_by_default = notifychangeproperty(dbus.Boolean,
1301
"ApprovedByDefault")
1302
approval_delay = notifychangeproperty(dbus.UInt64,
1303
"ApprovalDelay",
1304
type_func =
1305
timedelta_to_milliseconds)
1306
approval_duration = notifychangeproperty(
1307
dbus.UInt64, "ApprovalDuration",
1308
type_func = timedelta_to_milliseconds)
1309
host = notifychangeproperty(dbus.String, "Host")
1310
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1311
type_func =
1312
timedelta_to_milliseconds)
1313
extended_timeout = notifychangeproperty(
1314
dbus.UInt64, "ExtendedTimeout",
1315
type_func = timedelta_to_milliseconds)
1316
interval = notifychangeproperty(dbus.UInt64,
1317
"Interval",
1318
type_func =
1319
timedelta_to_milliseconds)
1320
checker_command = notifychangeproperty(dbus.String, "Checker")
1321
1322
del notifychangeproperty
782
1323
783
1324
def __del__(self, *args, **kwargs):
784
1325
try:
785
1326
self.remove_from_connection()
786
1327
except LookupError:
787
1328
pass
788
if hasattr(DBusObjectWithProperties, u"__del__"):
1329
if hasattr(DBusObjectWithProperties, "__del__"):
789
1330
DBusObjectWithProperties.__del__(self, *args, **kwargs)
790
1331
Client.__del__(self, *args, **kwargs)
791
1332
793
1334
*args, **kwargs):
794
1335
self.checker_callback_tag = None
795
1336
self.checker = None
796
# Emit D-Bus signal
797
self.PropertyChanged(dbus.String(u"CheckerRunning"),
798
dbus.Boolean(False, variant_level=1))
799
1337
if os.WIFEXITED(condition):
800
1338
exitstatus = os.WEXITSTATUS(condition)
801
1339
# Emit D-Bus signal
811
1349
return Client.checker_callback(self, pid, condition, command,
812
1350
*args, **kwargs)
813
1351
814
def checked_ok(self, *args, **kwargs):
815
r = Client.checked_ok(self, *args, **kwargs)
816
# Emit D-Bus signal
817
self.PropertyChanged(
818
dbus.String(u"LastCheckedOK"),
819
(self._datetime_to_dbus(self.last_checked_ok,
820
variant_level=1)))
821
return r
822
823
def need_approval(self, *args, **kwargs):
824
r = Client.need_approval(self, *args, **kwargs)
825
# Emit D-Bus signal
826
self.PropertyChanged(
827
dbus.String(u"LastApprovalRequest"),
828
(self._datetime_to_dbus(self.last_approval_request,
829
variant_level=1)))
830
return r
831
832
1352
def start_checker(self, *args, **kwargs):
833
1353
old_checker = self.checker
834
1354
if self.checker is not None:
841
1361
and old_checker_pid != self.checker.pid):
842
1362
# Emit D-Bus signal
843
1363
self.CheckerStarted(self.current_checker_command)
844
self.PropertyChanged(
845
dbus.String(u"CheckerRunning"),
846
dbus.Boolean(True, variant_level=1))
847
1364
return r
848
1365
849
def stop_checker(self, *args, **kwargs):
850
old_checker = getattr(self, u"checker", None)
851
r = Client.stop_checker(self, *args, **kwargs)
852
if (old_checker is not None
853
and getattr(self, u"checker", None) is None):
854
self.PropertyChanged(dbus.String(u"CheckerRunning"),
855
dbus.Boolean(False, variant_level=1))
856
return r
857
858
1366
def _reset_approved(self):
859
self._approved = None
1367
self.approved = None
860
1368
return False
861
1369
862
1370
def approve(self, value=True):
863
self.send_changedstate()
864
self._approved = value
865
gobject.timeout_add(self._timedelta_to_milliseconds
1371
self.approved = value
1372
gobject.timeout_add(timedelta_to_milliseconds
866
1373
(self.approval_duration),
867
1374
self._reset_approved)
868
1375
self.send_changedstate()
869
1376
870
1377
## D-Bus methods, signals & properties
871
_interface = u"se.bsnet.fukt.Mandos.Client"
1378
_interface = "se.recompile.Mandos.Client"
1379
1380
## Interfaces
1381
1382
@dbus_interface_annotations(_interface)
1383
def _foo(self):
1384
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1385
"false"}
872
1386
873
1387
## Signals
874
1388
875
1389
# CheckerCompleted - signal
876
@dbus.service.signal(_interface, signature=u"nxs")
1390
@dbus.service.signal(_interface, signature="nxs")
877
1391
def CheckerCompleted(self, exitcode, waitstatus, command):
878
1392
"D-Bus signal"
879
1393
pass
880
1394
881
1395
# CheckerStarted - signal
882
@dbus.service.signal(_interface, signature=u"s")
1396
@dbus.service.signal(_interface, signature="s")
883
1397
def CheckerStarted(self, command):
884
1398
"D-Bus signal"
885
1399
pass
886
1400
887
1401
# PropertyChanged - signal
888
@dbus.service.signal(_interface, signature=u"sv")
1402
@dbus.service.signal(_interface, signature="sv")
889
1403
def PropertyChanged(self, property, value):
890
1404
"D-Bus signal"
891
1405
pass
900
1414
pass
901
1415
902
1416
# Rejected - signal
903
@dbus.service.signal(_interface, signature=u"s")
1417
@dbus.service.signal(_interface, signature="s")
904
1418
def Rejected(self, reason):
905
1419
"D-Bus signal"
906
1420
pass
907
1421
908
1422
# NeedApproval - signal
909
@dbus.service.signal(_interface, signature=u"tb")
1423
@dbus.service.signal(_interface, signature="tb")
910
1424
def NeedApproval(self, timeout, default):
911
1425
"D-Bus signal"
912
1426
return self.need_approval()
914
1428
## Methods
915
1429
916
1430
# Approve - method
917
@dbus.service.method(_interface, in_signature=u"b")
1431
@dbus.service.method(_interface, in_signature="b")
918
1432
def Approve(self, value):
919
1433
self.approve(value)
920
1434
921
1435
# CheckedOK - method
922
1436
@dbus.service.method(_interface)
923
1437
def CheckedOK(self):
924
return self.checked_ok()
1438
self.checked_ok()
925
1439
926
1440
# Enable - method
927
1441
@dbus.service.method(_interface)
949
1463
## Properties
950
1464
951
1465
# ApprovalPending - property
952
@dbus_service_property(_interface, signature=u"b", access=u"read")
1466
@dbus_service_property(_interface, signature="b", access="read")
953
1467
def ApprovalPending_dbus_property(self):
954
1468
return dbus.Boolean(bool(self.approvals_pending))
955
1469
956
1470
# ApprovedByDefault - property
957
@dbus_service_property(_interface, signature=u"b",
958
access=u"readwrite")
1471
@dbus_service_property(_interface, signature="b",
1472
access="readwrite")
959
1473
def ApprovedByDefault_dbus_property(self, value=None):
960
1474
if value is None: # get
961
1475
return dbus.Boolean(self.approved_by_default)
962
1476
self.approved_by_default = bool(value)
963
# Emit D-Bus signal
964
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
965
dbus.Boolean(value, variant_level=1))
966
1477
967
1478
# ApprovalDelay - property
968
@dbus_service_property(_interface, signature=u"t",
969
access=u"readwrite")
1479
@dbus_service_property(_interface, signature="t",
1480
access="readwrite")
970
1481
def ApprovalDelay_dbus_property(self, value=None):
971
1482
if value is None: # get
972
1483
return dbus.UInt64(self.approval_delay_milliseconds())
973
1484
self.approval_delay = datetime.timedelta(0, 0, 0, value)
974
# Emit D-Bus signal
975
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
976
dbus.UInt64(value, variant_level=1))
977
1485
978
1486
# ApprovalDuration - property
979
@dbus_service_property(_interface, signature=u"t",
980
access=u"readwrite")
1487
@dbus_service_property(_interface, signature="t",
1488
access="readwrite")
981
1489
def ApprovalDuration_dbus_property(self, value=None):
982
1490
if value is None: # get
983
return dbus.UInt64(self._timedelta_to_milliseconds(
1491
return dbus.UInt64(timedelta_to_milliseconds(
984
1492
self.approval_duration))
985
1493
self.approval_duration = datetime.timedelta(0, 0, 0, value)
986
# Emit D-Bus signal
987
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
988
dbus.UInt64(value, variant_level=1))
989
1494
990
1495
# Name - property
991
@dbus_service_property(_interface, signature=u"s", access=u"read")
1496
@dbus_service_property(_interface, signature="s", access="read")
992
1497
def Name_dbus_property(self):
993
1498
return dbus.String(self.name)
994
1499
995
1500
# Fingerprint - property
996
@dbus_service_property(_interface, signature=u"s", access=u"read")
1501
@dbus_service_property(_interface, signature="s", access="read")
997
1502
def Fingerprint_dbus_property(self):
998
1503
return dbus.String(self.fingerprint)
999
1504
1000
1505
# Host - property
1001
@dbus_service_property(_interface, signature=u"s",
1002
access=u"readwrite")
1506
@dbus_service_property(_interface, signature="s",
1507
access="readwrite")
1003
1508
def Host_dbus_property(self, value=None):
1004
1509
if value is None: # get
1005
1510
return dbus.String(self.host)
1006
self.host = value
1007
# Emit D-Bus signal
1008
self.PropertyChanged(dbus.String(u"Host"),
1009
dbus.String(value, variant_level=1))
1511
self.host = unicode(value)
1010
1512
1011
1513
# Created - property
1012
@dbus_service_property(_interface, signature=u"s", access=u"read")
1514
@dbus_service_property(_interface, signature="s", access="read")
1013
1515
def Created_dbus_property(self):
1014
return dbus.String(self._datetime_to_dbus(self.created))
1516
return datetime_to_dbus(self.created)
1015
1517
1016
1518
# LastEnabled - property
1017
@dbus_service_property(_interface, signature=u"s", access=u"read")
1519
@dbus_service_property(_interface, signature="s", access="read")
1018
1520
def LastEnabled_dbus_property(self):
1019
if self.last_enabled is None:
1020
return dbus.String(u"")
1021
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1521
return datetime_to_dbus(self.last_enabled)
1022
1522
1023
1523
# Enabled - property
1024
@dbus_service_property(_interface, signature=u"b",
1025
access=u"readwrite")
1524
@dbus_service_property(_interface, signature="b",
1525
access="readwrite")
1026
1526
def Enabled_dbus_property(self, value=None):
1027
1527
if value is None: # get
1028
1528
return dbus.Boolean(self.enabled)
1032
1532
self.disable()
1033
1533
1034
1534
# LastCheckedOK - property
1035
@dbus_service_property(_interface, signature=u"s",
1036
access=u"readwrite")
1535
@dbus_service_property(_interface, signature="s",
1536
access="readwrite")
1037
1537
def LastCheckedOK_dbus_property(self, value=None):
1038
1538
if value is not None:
1039
1539
self.checked_ok()
1040
1540
return
1041
if self.last_checked_ok is None:
1042
return dbus.String(u"")
1043
return dbus.String(self._datetime_to_dbus(self
1044
.last_checked_ok))
1541
return datetime_to_dbus(self.last_checked_ok)
1542
1543
# LastCheckerStatus - property
1544
@dbus_service_property(_interface, signature="n",
1545
access="read")
1546
def LastCheckerStatus_dbus_property(self):
1547
return dbus.Int16(self.last_checker_status)
1548
1549
# Expires - property
1550
@dbus_service_property(_interface, signature="s", access="read")
1551
def Expires_dbus_property(self):
1552
return datetime_to_dbus(self.expires)
1045
1553
1046
1554
# LastApprovalRequest - property
1047
@dbus_service_property(_interface, signature=u"s", access=u"read")
1555
@dbus_service_property(_interface, signature="s", access="read")
1048
1556
def LastApprovalRequest_dbus_property(self):
1049
if self.last_approval_request is None:
1050
return dbus.String(u"")
1051
return dbus.String(self.
1052
_datetime_to_dbus(self
1053
.last_approval_request))
1557
return datetime_to_dbus(self.last_approval_request)
1054
1558
1055
1559
# Timeout - property
1056
@dbus_service_property(_interface, signature=u"t",
1057
access=u"readwrite")
1560
@dbus_service_property(_interface, signature="t",
1561
access="readwrite")
1058
1562
def Timeout_dbus_property(self, value=None):
1059
1563
if value is None: # get
1060
1564
return dbus.UInt64(self.timeout_milliseconds())
1565
old_timeout = self.timeout
1061
1566
self.timeout = datetime.timedelta(0, 0, 0, value)
1062
# Emit D-Bus signal
1063
self.PropertyChanged(dbus.String(u"Timeout"),
1064
dbus.UInt64(value, variant_level=1))
1065
if getattr(self, u"disable_initiator_tag", None) is None:
1066
return
1067
# Reschedule timeout
1068
gobject.source_remove(self.disable_initiator_tag)
1069
self.disable_initiator_tag = None
1070
time_to_die = (self.
1071
_timedelta_to_milliseconds((self
1072
.last_checked_ok
1073
+ self.timeout)
1074
- datetime.datetime
1075
.utcnow()))
1076
if time_to_die <= 0:
1077
# The timeout has passed
1078
self.disable()
1079
else:
1080
self.disable_initiator_tag = (gobject.timeout_add
1081
(time_to_die, self.disable))
1567
# Reschedule disabling
1568
if self.enabled:
1569
now = datetime.datetime.utcnow()
1570
self.expires += self.timeout - old_timeout
1571
if self.expires <= now:
1572
# The timeout has passed
1573
self.disable()
1574
else:
1575
if (getattr(self, "disable_initiator_tag", None)
1576
is None):
1577
return
1578
gobject.source_remove(self.disable_initiator_tag)
1579
self.disable_initiator_tag = (
1580
gobject.timeout_add(
1581
timedelta_to_milliseconds(self.expires - now),
1582
self.disable))
1583
1584
# ExtendedTimeout - property
1585
@dbus_service_property(_interface, signature="t",
1586
access="readwrite")
1587
def ExtendedTimeout_dbus_property(self, value=None):
1588
if value is None: # get
1589
return dbus.UInt64(self.extended_timeout_milliseconds())
1590
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1082
1591
1083
1592
# Interval - property
1084
@dbus_service_property(_interface, signature=u"t",
1085
access=u"readwrite")
1593
@dbus_service_property(_interface, signature="t",
1594
access="readwrite")
1086
1595
def Interval_dbus_property(self, value=None):
1087
1596
if value is None: # get
1088
1597
return dbus.UInt64(self.interval_milliseconds())
1089
1598
self.interval = datetime.timedelta(0, 0, 0, value)
1090
# Emit D-Bus signal
1091
self.PropertyChanged(dbus.String(u"Interval"),
1092
dbus.UInt64(value, variant_level=1))
1093
if getattr(self, u"checker_initiator_tag", None) is None:
1599
if getattr(self, "checker_initiator_tag", None) is None:
1094
1600
return
1095
# Reschedule checker run
1096
gobject.source_remove(self.checker_initiator_tag)
1097
self.checker_initiator_tag = (gobject.timeout_add
1098
(value, self.start_checker))
1099
self.start_checker() # Start one now, too
1100
1601
if self.enabled:
1602
# Reschedule checker run
1603
gobject.source_remove(self.checker_initiator_tag)
1604
self.checker_initiator_tag = (gobject.timeout_add
1605
(value, self.start_checker))
1606
self.start_checker() # Start one now, too
1607
1101
1608
# Checker - property
1102
@dbus_service_property(_interface, signature=u"s",
1103
access=u"readwrite")
1609
@dbus_service_property(_interface, signature="s",
1610
access="readwrite")
1104
1611
def Checker_dbus_property(self, value=None):
1105
1612
if value is None: # get
1106
1613
return dbus.String(self.checker_command)
1107
self.checker_command = value
1108
# Emit D-Bus signal
1109
self.PropertyChanged(dbus.String(u"Checker"),
1110
dbus.String(self.checker_command,
1111
variant_level=1))
1614
self.checker_command = unicode(value)
1112
1615
1113
1616
# CheckerRunning - property
1114
@dbus_service_property(_interface, signature=u"b",
1115
access=u"readwrite")
1617
@dbus_service_property(_interface, signature="b",
1618
access="readwrite")
1116
1619
def CheckerRunning_dbus_property(self, value=None):
1117
1620
if value is None: # get
1118
1621
return dbus.Boolean(self.checker is not None)
1122
1625
self.stop_checker()
1123
1626
1124
1627
# ObjectPath - property
1125
@dbus_service_property(_interface, signature=u"o", access=u"read")
1628
@dbus_service_property(_interface, signature="o", access="read")
1126
1629
def ObjectPath_dbus_property(self):
1127
1630
return self.dbus_object_path # is already a dbus.ObjectPath
1128
1631
1129
1632
# Secret = property
1130
@dbus_service_property(_interface, signature=u"ay",
1131
access=u"write", byte_arrays=True)
1633
@dbus_service_property(_interface, signature="ay",
1634
access="write", byte_arrays=True)
1132
1635
def Secret_dbus_property(self, value):
1133
1636
self.secret = str(value)
1134
1637
1141
1644
self._pipe.send(('init', fpr, address))
1142
1645
if not self._pipe.recv():
1143
1646
raise KeyError()
1144
1647
1145
1648
def __getattribute__(self, name):
1146
if(name == '_pipe'):
1649
if name == '_pipe':
1147
1650
return super(ProxyClient, self).__getattribute__(name)
1148
1651
self._pipe.send(('getattr', name))
1149
1652
data = self._pipe.recv()
1154
1657
self._pipe.send(('funcall', name, args, kwargs))
1155
1658
return self._pipe.recv()[1]
1156
1659
return func
1157
1660
1158
1661
def __setattr__(self, name, value):
1159
if(name == '_pipe'):
1662
if name == '_pipe':
1160
1663
return super(ProxyClient, self).__setattr__(name, value)
1161
1664
self._pipe.send(('setattr', name, value))
1162
1665
1169
1672
1170
1673
def handle(self):
1171
1674
with contextlib.closing(self.server.child_pipe) as child_pipe:
1172
logger.info(u"TCP connection from: %s",
1675
logger.info("TCP connection from: %s",
1173
1676
unicode(self.client_address))
1174
logger.debug(u"Pipe FD: %d",
1677
logger.debug("Pipe FD: %d",
1175
1678
self.server.child_pipe.fileno())
1176
1679
1177
1680
session = (gnutls.connection
1178
1681
.ClientSession(self.request,
1179
1682
gnutls.connection
1180
1683
.X509Credentials()))
1181
1684
1182
1685
# Note: gnutls.connection.X509Credentials is really a
1183
1686
# generic GnuTLS certificate credentials object so long as
1184
1687
# no X.509 keys are added to it. Therefore, we can use it
1185
1688
# here despite using OpenPGP certificates.
1186
1187
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1188
# u"+AES-256-CBC", u"+SHA1",
1189
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1190
# u"+DHE-DSS"))
1689
1690
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1691
# "+AES-256-CBC", "+SHA1",
1692
# "+COMP-NULL", "+CTYPE-OPENPGP",
1693
# "+DHE-DSS"))
1191
1694
# Use a fallback default, since this MUST be set.
1192
1695
priority = self.server.gnutls_priority
1193
1696
if priority is None:
1194
priority = u"NORMAL"
1697
priority = "NORMAL"
1195
1698
(gnutls.library.functions
1196
1699
.gnutls_priority_set_direct(session._c_object,
1197
1700
priority, None))
1198
1701
1199
1702
# Start communication using the Mandos protocol
1200
1703
# Get protocol number
1201
1704
line = self.request.makefile().readline()
1202
logger.debug(u"Protocol version: %r", line)
1705
logger.debug("Protocol version: %r", line)
1203
1706
try:
1204
1707
if int(line.strip().split()[0]) > 1:
1205
raise RuntimeError
1206
except (ValueError, IndexError, RuntimeError), error:
1207
logger.error(u"Unknown protocol version: %s", error)
1708
raise RuntimeError(line)
1709
except (ValueError, IndexError, RuntimeError) as error:
1710
logger.error("Unknown protocol version: %s", error)
1208
1711
return
1209
1712
1210
1713
# Start GnuTLS connection
1211
1714
try:
1212
1715
session.handshake()
1213
except gnutls.errors.GNUTLSError, error:
1214
logger.warning(u"Handshake failed: %s", error)
1716
except gnutls.errors.GNUTLSError as error:
1717
logger.warning("Handshake failed: %s", error)
1215
1718
# Do not run session.bye() here: the session is not
1216
1719
# established. Just abandon the request.
1217
1720
return
1218
logger.debug(u"Handshake succeeded")
1219
1721
logger.debug("Handshake succeeded")
1722
1220
1723
approval_required = False
1221
1724
try:
1222
1725
try:
1223
1726
fpr = self.fingerprint(self.peer_certificate
1224
1727
(session))
1225
except (TypeError, gnutls.errors.GNUTLSError), error:
1226
logger.warning(u"Bad certificate: %s", error)
1728
except (TypeError,
1729
gnutls.errors.GNUTLSError) as error:
1730
logger.warning("Bad certificate: %s", error)
1227
1731
return
1228
logger.debug(u"Fingerprint: %s", fpr)
1229
1732
logger.debug("Fingerprint: %s", fpr)
1733
1230
1734
try:
1231
1735
client = ProxyClient(child_pipe, fpr,
1232
1736
self.client_address)
1240
1744
1241
1745
while True:
1242
1746
if not client.enabled:
1243
logger.warning(u"Client %s is disabled",
1747
logger.info("Client %s is disabled",
1244
1748
client.name)
1245
1749
if self.server.use_dbus:
1246
1750
# Emit D-Bus signal
1247
client.Rejected("Disabled")
1751
client.Rejected("Disabled")
1248
1752
return
1249
1753
1250
if client._approved or not client.approval_delay:
1754
if client.approved or not client.approval_delay:
1251
1755
#We are approved or approval is disabled
1252
1756
break
1253
elif client._approved is None:
1254
logger.info(u"Client %s needs approval",
1757
elif client.approved is None:
1758
logger.info("Client %s needs approval",
1255
1759
client.name)
1256
1760
if self.server.use_dbus:
1257
1761
# Emit D-Bus signal
1259
1763
client.approval_delay_milliseconds(),
1260
1764
client.approved_by_default)
1261
1765
else:
1262
logger.warning(u"Client %s was not approved",
1766
logger.warning("Client %s was not approved",
1263
1767
client.name)
1264
1768
if self.server.use_dbus:
1265
1769
# Emit D-Bus signal
1267
1771
return
1268
1772
1269
1773
#wait until timeout or approved
1270
#x = float(client._timedelta_to_milliseconds(delay))
1271
1774
time = datetime.datetime.now()
1272
1775
client.changedstate.acquire()
1273
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1776
client.changedstate.wait(
1777
float(timedelta_to_milliseconds(delay)
1778
/ 1000))
1274
1779
client.changedstate.release()
1275
1780
time2 = datetime.datetime.now()
1276
1781
if (time2 - time) >= delay:
1291
1796
while sent_size < len(client.secret):
1292
1797
try:
1293
1798
sent = session.send(client.secret[sent_size:])
1294
except (gnutls.errors.GNUTLSError), error:
1295
logger.warning("gnutls send failed")
1799
except gnutls.errors.GNUTLSError as error:
1800
logger.warning("gnutls send failed",
1801
exc_info=error)
1296
1802
return
1297
logger.debug(u"Sent: %d, remaining: %d",
1803
logger.debug("Sent: %d, remaining: %d",
1298
1804
sent, len(client.secret)
1299
1805
- (sent_size + sent))
1300
1806
sent_size += sent
1301
1302
logger.info(u"Sending secret to %s", client.name)
1303
# bump the timeout as if seen
1304
client.checked_ok()
1807
1808
logger.info("Sending secret to %s", client.name)
1809
# bump the timeout using extended_timeout
1810
client.bump_timeout(client.extended_timeout)
1305
1811
if self.server.use_dbus:
1306
1812
# Emit D-Bus signal
1307
1813
client.GotSecret()
1311
1817
client.approvals_pending -= 1
1312
1818
try:
1313
1819
session.bye()
1314
except (gnutls.errors.GNUTLSError), error:
1315
logger.warning("GnuTLS bye failed")
1820
except gnutls.errors.GNUTLSError as error:
1821
logger.warning("GnuTLS bye failed",
1822
exc_info=error)
1316
1823
1317
1824
@staticmethod
1318
1825
def peer_certificate(session):
1328
1835
.gnutls_certificate_get_peers
1329
1836
(session._c_object, ctypes.byref(list_size)))
1330
1837
if not bool(cert_list) and list_size.value != 0:
1331
raise gnutls.errors.GNUTLSError(u"error getting peer"
1332
u" certificate")
1838
raise gnutls.errors.GNUTLSError("error getting peer"
1839
" certificate")
1333
1840
if list_size.value == 0:
1334
1841
return None
1335
1842
cert = cert_list[0]
1361
1868
if crtverify.value != 0:
1362
1869
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1363
1870
raise (gnutls.errors.CertificateSecurityError
1364
(u"Verify failed"))
1871
("Verify failed"))
1365
1872
# New buffer for the fingerprint
1366
1873
buf = ctypes.create_string_buffer(20)
1367
1874
buf_len = ctypes.c_size_t()
1374
1881
# Convert the buffer to a Python bytestring
1375
1882
fpr = ctypes.string_at(buf, buf_len.value)
1376
1883
# Convert the bytestring to hexadecimal notation
1377
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1884
hex_fpr = binascii.hexlify(fpr).upper()
1378
1885
return hex_fpr
1379
1886
1380
1887
1383
1890
def sub_process_main(self, request, address):
1384
1891
try:
1385
1892
self.finish_request(request, address)
1386
except:
1893
except Exception:
1387
1894
self.handle_error(request, address)
1388
1895
self.close_request(request)
1389
1896
1390
1897
def process_request(self, request, address):
1391
1898
"""Start a new process to process the request."""
1392
multiprocessing.Process(target = self.sub_process_main,
1393
args = (request, address)).start()
1899
proc = multiprocessing.Process(target = self.sub_process_main,
1900
args = (request, address))
1901
proc.start()
1902
return proc
1903
1394
1904
1395
1905
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1396
1906
""" adds a pipe to the MixIn """
1400
1910
This function creates a new pipe in self.pipe
1401
1911
"""
1402
1912
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1403
1404
super(MultiprocessingMixInWithPipe,
1405
self).process_request(request, client_address)
1913
1914
proc = MultiprocessingMixIn.process_request(self, request,
1915
client_address)
1406
1916
self.child_pipe.close()
1407
self.add_pipe(parent_pipe)
1408
1409
def add_pipe(self, parent_pipe):
1917
self.add_pipe(parent_pipe, proc)
1918
1919
def add_pipe(self, parent_pipe, proc):
1410
1920
"""Dummy function; override as necessary"""
1411
pass
1921
raise NotImplementedError()
1922
1412
1923
1413
1924
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1414
1925
socketserver.TCPServer, object):
1420
1931
use_ipv6: Boolean; to use IPv6 or not
1421
1932
"""
1422
1933
def __init__(self, server_address, RequestHandlerClass,
1423
interface=None, use_ipv6=True):
1934
interface=None, use_ipv6=True, socketfd=None):
1935
"""If socketfd is set, use that file descriptor instead of
1936
creating a new one with socket.socket().
1937
"""
1424
1938
self.interface = interface
1425
1939
if use_ipv6:
1426
1940
self.address_family = socket.AF_INET6
1941
if socketfd is not None:
1942
# Save the file descriptor
1943
self.socketfd = socketfd
1944
# Save the original socket.socket() function
1945
self.socket_socket = socket.socket
1946
# To implement --socket, we monkey patch socket.socket.
1947
#
1948
# (When socketserver.TCPServer is a new-style class, we
1949
# could make self.socket into a property instead of monkey
1950
# patching socket.socket.)
1951
#
1952
# Create a one-time-only replacement for socket.socket()
1953
@functools.wraps(socket.socket)
1954
def socket_wrapper(*args, **kwargs):
1955
# Restore original function so subsequent calls are
1956
# not affected.
1957
socket.socket = self.socket_socket
1958
del self.socket_socket
1959
# This time only, return a new socket object from the
1960
# saved file descriptor.
1961
return socket.fromfd(self.socketfd, *args, **kwargs)
1962
# Replace socket.socket() function with wrapper
1963
socket.socket = socket_wrapper
1964
# The socketserver.TCPServer.__init__ will call
1965
# socket.socket(), which might be our replacement,
1966
# socket_wrapper(), if socketfd was set.
1427
1967
socketserver.TCPServer.__init__(self, server_address,
1428
1968
RequestHandlerClass)
1969
1429
1970
def server_bind(self):
1430
1971
"""This overrides the normal server_bind() function
1431
1972
to bind to an interface if one was specified, and also NOT to
1432
1973
bind to an address or port if they were not specified."""
1433
1974
if self.interface is not None:
1434
1975
if SO_BINDTODEVICE is None:
1435
logger.error(u"SO_BINDTODEVICE does not exist;"
1436
u" cannot bind to interface %s",
1976
logger.error("SO_BINDTODEVICE does not exist;"
1977
" cannot bind to interface %s",
1437
1978
self.interface)
1438
1979
else:
1439
1980
try:
1440
1981
self.socket.setsockopt(socket.SOL_SOCKET,
1441
1982
SO_BINDTODEVICE,
1442
str(self.interface
1443
+ u'\0'))
1444
except socket.error, error:
1445
if error[0] == errno.EPERM:
1446
logger.error(u"No permission to"
1447
u" bind to interface %s",
1448
self.interface)
1449
elif error[0] == errno.ENOPROTOOPT:
1450
logger.error(u"SO_BINDTODEVICE not available;"
1451
u" cannot bind to interface %s",
1452
self.interface)
1983
str(self.interface + '\0'))
1984
except socket.error as error:
1985
if error.errno == errno.EPERM:
1986
logger.error("No permission to bind to"
1987
" interface %s", self.interface)
1988
elif error.errno == errno.ENOPROTOOPT:
1989
logger.error("SO_BINDTODEVICE not available;"
1990
" cannot bind to interface %s",
1991
self.interface)
1992
elif error.errno == errno.ENODEV:
1993
logger.error("Interface %s does not exist,"
1994
" cannot bind", self.interface)
1453
1995
else:
1454
1996
raise
1455
1997
# Only bind(2) the socket if we really need to.
1456
1998
if self.server_address[0] or self.server_address[1]:
1457
1999
if not self.server_address[0]:
1458
2000
if self.address_family == socket.AF_INET6:
1459
any_address = u"::" # in6addr_any
2001
any_address = "::" # in6addr_any
1460
2002
else:
1461
any_address = socket.INADDR_ANY
2003
any_address = "0.0.0.0" # INADDR_ANY
1462
2004
self.server_address = (any_address,
1463
2005
self.server_address[1])
1464
2006
elif not self.server_address[1]:
1485
2027
"""
1486
2028
def __init__(self, server_address, RequestHandlerClass,
1487
2029
interface=None, use_ipv6=True, clients=None,
1488
gnutls_priority=None, use_dbus=True):
2030
gnutls_priority=None, use_dbus=True, socketfd=None):
1489
2031
self.enabled = False
1490
2032
self.clients = clients
1491
2033
if self.clients is None:
1492
self.clients = set()
2034
self.clients = {}
1493
2035
self.use_dbus = use_dbus
1494
2036
self.gnutls_priority = gnutls_priority
1495
2037
IPv6_TCPServer.__init__(self, server_address,
1496
2038
RequestHandlerClass,
1497
2039
interface = interface,
1498
use_ipv6 = use_ipv6)
2040
use_ipv6 = use_ipv6,
2041
socketfd = socketfd)
1499
2042
def server_activate(self):
1500
2043
if self.enabled:
1501
2044
return socketserver.TCPServer.server_activate(self)
2045
1502
2046
def enable(self):
1503
2047
self.enabled = True
1504
def add_pipe(self, parent_pipe):
2048
2049
def add_pipe(self, parent_pipe, proc):
1505
2050
# Call "handle_ipc" for both data and EOF events
1506
2051
gobject.io_add_watch(parent_pipe.fileno(),
1507
2052
gobject.IO_IN | gobject.IO_HUP,
1508
2053
functools.partial(self.handle_ipc,
1509
parent_pipe = parent_pipe))
1510
2054
parent_pipe =
2055
parent_pipe,
2056
proc = proc))
2057
1511
2058
def handle_ipc(self, source, condition, parent_pipe=None,
1512
client_object=None):
1513
condition_names = {
1514
gobject.IO_IN: u"IN", # There is data to read.
1515
gobject.IO_OUT: u"OUT", # Data can be written (without
1516
# blocking).
1517
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1518
gobject.IO_ERR: u"ERR", # Error condition.
1519
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1520
# broken, usually for pipes and
1521
# sockets).
1522
}
1523
conditions_string = ' | '.join(name
1524
for cond, name in
1525
condition_names.iteritems()
1526
if cond & condition)
1527
# error or the other end of multiprocessing.Pipe has closed
1528
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2059
proc = None, client_object=None):
2060
# error, or the other end of multiprocessing.Pipe has closed
2061
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2062
# Wait for other process to exit
2063
proc.join()
1529
2064
return False
1530
2065
1531
2066
# Read a request from the child
1536
2071
fpr = request[1]
1537
2072
address = request[2]
1538
2073
1539
for c in self.clients:
2074
for c in self.clients.itervalues():
1540
2075
if c.fingerprint == fpr:
1541
2076
client = c
1542
2077
break
1543
2078
else:
1544
logger.warning(u"Client not found for fingerprint: %s, ad"
1545
u"dress: %s", fpr, address)
2079
logger.info("Client not found for fingerprint: %s, ad"
2080
"dress: %s", fpr, address)
1546
2081
if self.use_dbus:
1547
2082
# Emit D-Bus signal
1548
mandos_dbus_service.ClientNotFound(fpr, address[0])
2083
mandos_dbus_service.ClientNotFound(fpr,
2084
address[0])
1549
2085
parent_pipe.send(False)
1550
2086
return False
1551
2087
1552
2088
gobject.io_add_watch(parent_pipe.fileno(),
1553
2089
gobject.IO_IN | gobject.IO_HUP,
1554
2090
functools.partial(self.handle_ipc,
1555
parent_pipe = parent_pipe,
1556
client_object = client))
2091
parent_pipe =
2092
parent_pipe,
2093
proc = proc,
2094
client_object =
2095
client))
1557
2096
parent_pipe.send(True)
1558
# remove the old hook in favor of the new above hook on same fileno
2097
# remove the old hook in favor of the new above hook on
2098
# same fileno
1559
2099
return False
1560
2100
if command == 'funcall':
1561
2101
funcname = request[1]
1562
2102
args = request[2]
1563
2103
kwargs = request[3]
1564
2104
1565
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1566
2105
parent_pipe.send(('data', getattr(client_object,
2106
funcname)(*args,
2107
**kwargs)))
2108
1567
2109
if command == 'getattr':
1568
2110
attrname = request[1]
1569
2111
if callable(client_object.__getattribute__(attrname)):
1570
2112
parent_pipe.send(('function',))
1571
2113
else:
1572
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2114
parent_pipe.send(('data', client_object
2115
.__getattribute__(attrname)))
1573
2116
1574
2117
if command == 'setattr':
1575
2118
attrname = request[1]
1576
2119
value = request[2]
1577
2120
setattr(client_object, attrname, value)
1578
2121
1579
2122
return True
1580
2123
1581
2124
2125
def rfc3339_duration_to_delta(duration):
2126
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2127
2128
>>> rfc3339_duration_to_delta("P7D")
2129
datetime.timedelta(7)
2130
>>> rfc3339_duration_to_delta("PT60S")
2131
datetime.timedelta(0, 60)
2132
>>> rfc3339_duration_to_delta("PT60M")
2133
datetime.timedelta(0, 3600)
2134
>>> rfc3339_duration_to_delta("PT24H")
2135
datetime.timedelta(1)
2136
>>> rfc3339_duration_to_delta("P1W")
2137
datetime.timedelta(7)
2138
>>> rfc3339_duration_to_delta("PT5M30S")
2139
datetime.timedelta(0, 330)
2140
>>> rfc3339_duration_to_delta("P1DT3M20S")
2141
datetime.timedelta(1, 200)
2142
"""
2143
2144
# Parsing an RFC 3339 duration with regular expressions is not
2145
# possible - there would have to be multiple places for the same
2146
# values, like seconds. The current code, while more esoteric, is
2147
# cleaner without depending on a parsing library. If Python had a
2148
# built-in library for parsing we would use it, but we'd like to
2149
# avoid excessive use of external libraries.
2150
2151
# New type for defining tokens, syntax, and semantics all-in-one
2152
Token = collections.namedtuple("Token",
2153
("regexp", # To match token; if
2154
# "value" is not None,
2155
# must have a "group"
2156
# containing digits
2157
"value", # datetime.timedelta or
2158
# None
2159
"followers")) # Tokens valid after
2160
# this token
2161
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2162
# the "duration" ABNF definition in RFC 3339, Appendix A.
2163
token_end = Token(re.compile(r"$"), None, frozenset())
2164
token_second = Token(re.compile(r"(\d+)S"),
2165
datetime.timedelta(seconds=1),
2166
frozenset((token_end,)))
2167
token_minute = Token(re.compile(r"(\d+)M"),
2168
datetime.timedelta(minutes=1),
2169
frozenset((token_second, token_end)))
2170
token_hour = Token(re.compile(r"(\d+)H"),
2171
datetime.timedelta(hours=1),
2172
frozenset((token_minute, token_end)))
2173
token_time = Token(re.compile(r"T"),
2174
None,
2175
frozenset((token_hour, token_minute,
2176
token_second)))
2177
token_day = Token(re.compile(r"(\d+)D"),
2178
datetime.timedelta(days=1),
2179
frozenset((token_time, token_end)))
2180
token_month = Token(re.compile(r"(\d+)M"),
2181
datetime.timedelta(weeks=4),
2182
frozenset((token_day, token_end)))
2183
token_year = Token(re.compile(r"(\d+)Y"),
2184
datetime.timedelta(weeks=52),
2185
frozenset((token_month, token_end)))
2186
token_week = Token(re.compile(r"(\d+)W"),
2187
datetime.timedelta(weeks=1),
2188
frozenset((token_end,)))
2189
token_duration = Token(re.compile(r"P"), None,
2190
frozenset((token_year, token_month,
2191
token_day, token_time,
2192
token_week))),
2193
# Define starting values
2194
value = datetime.timedelta() # Value so far
2195
found_token = None
2196
followers = frozenset(token_duration,) # Following valid tokens
2197
s = duration # String left to parse
2198
# Loop until end token is found
2199
while found_token is not token_end:
2200
# Search for any currently valid tokens
2201
for token in followers:
2202
match = token.regexp.match(s)
2203
if match is not None:
2204
# Token found
2205
if token.value is not None:
2206
# Value found, parse digits
2207
factor = int(match.group(1), 10)
2208
# Add to value so far
2209
value += factor * token.value
2210
# Strip token from string
2211
s = token.regexp.sub("", s, 1)
2212
# Go to found token
2213
found_token = token
2214
# Set valid next tokens
2215
followers = found_token.followers
2216
break
2217
else:
2218
# No currently valid tokens were found
2219
raise ValueError("Invalid RFC 3339 duration")
2220
# End token found
2221
return value
2222
2223
1582
2224
def string_to_delta(interval):
1583
2225
"""Parse a string and return a datetime.timedelta
1584
2226
1585
>>> string_to_delta(u'7d')
2227
>>> string_to_delta('7d')
1586
2228
datetime.timedelta(7)
1587
>>> string_to_delta(u'60s')
2229
>>> string_to_delta('60s')
1588
2230
datetime.timedelta(0, 60)
1589
>>> string_to_delta(u'60m')
2231
>>> string_to_delta('60m')
1590
2232
datetime.timedelta(0, 3600)
1591
>>> string_to_delta(u'24h')
2233
>>> string_to_delta('24h')
1592
2234
datetime.timedelta(1)
1593
>>> string_to_delta(u'1w')
2235
>>> string_to_delta('1w')
1594
2236
datetime.timedelta(7)
1595
>>> string_to_delta(u'5m 30s')
2237
>>> string_to_delta('5m 30s')
1596
2238
datetime.timedelta(0, 330)
1597
2239
"""
2240
2241
try:
2242
return rfc3339_duration_to_delta(interval)
2243
except ValueError:
2244
pass
2245
1598
2246
timevalue = datetime.timedelta(0)
1599
2247
for s in interval.split():
1600
2248
try:
1601
2249
suffix = unicode(s[-1])
1602
2250
value = int(s[:-1])
1603
if suffix == u"d":
2251
if suffix == "d":
1604
2252
delta = datetime.timedelta(value)
1605
elif suffix == u"s":
2253
elif suffix == "s":
1606
2254
delta = datetime.timedelta(0, value)
1607
elif suffix == u"m":
2255
elif suffix == "m":
1608
2256
delta = datetime.timedelta(0, 0, 0, 0, value)
1609
elif suffix == u"h":
2257
elif suffix == "h":
1610
2258
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1611
elif suffix == u"w":
2259
elif suffix == "w":
1612
2260
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1613
2261
else:
1614
raise ValueError(u"Unknown suffix %r" % suffix)
1615
except (ValueError, IndexError), e:
1616
raise ValueError(e.message)
2262
raise ValueError("Unknown suffix {0!r}"
2263
.format(suffix))
2264
except IndexError as e:
2265
raise ValueError(*(e.args))
1617
2266
timevalue += delta
1618
2267
return timevalue
1619
2268
1620
2269
1621
def if_nametoindex(interface):
1622
"""Call the C function if_nametoindex(), or equivalent
1623
1624
Note: This function cannot accept a unicode string."""
1625
global if_nametoindex
1626
try:
1627
if_nametoindex = (ctypes.cdll.LoadLibrary
1628
(ctypes.util.find_library(u"c"))
1629
.if_nametoindex)
1630
except (OSError, AttributeError):
1631
logger.warning(u"Doing if_nametoindex the hard way")
1632
def if_nametoindex(interface):
1633
"Get an interface index the hard way, i.e. using fcntl()"
1634
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1635
with contextlib.closing(socket.socket()) as s:
1636
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1637
struct.pack(str(u"16s16x"),
1638
interface))
1639
interface_index = struct.unpack(str(u"I"),
1640
ifreq[16:20])[0]
1641
return interface_index
1642
return if_nametoindex(interface)
1643
1644
1645
2270
def daemon(nochdir = False, noclose = False):
1646
2271
"""See daemon(3). Standard BSD Unix function.
1647
2272
1650
2275
sys.exit()
1651
2276
os.setsid()
1652
2277
if not nochdir:
1653
os.chdir(u"/")
2278
os.chdir("/")
1654
2279
if os.fork():
1655
2280
sys.exit()
1656
2281
if not noclose:
1657
2282
# Close all standard open file descriptors
1658
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2283
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1659
2284
if not stat.S_ISCHR(os.fstat(null).st_mode):
1660
2285
raise OSError(errno.ENODEV,
1661
u"%s not a character device"
1662
% os.path.devnull)
2286
"{0} not a character device"
2287
.format(os.devnull))
1663
2288
os.dup2(null, sys.stdin.fileno())
1664
2289
os.dup2(null, sys.stdout.fileno())
1665
2290
os.dup2(null, sys.stderr.fileno())
1672
2297
##################################################################
1673
2298
# Parsing of options, both command line and config file
1674
2299
1675
parser = optparse.OptionParser(version = "%%prog %s" % version)
1676
parser.add_option("-i", u"--interface", type=u"string",
1677
metavar="IF", help=u"Bind to interface IF")
1678
parser.add_option("-a", u"--address", type=u"string",
1679
help=u"Address to listen for requests on")
1680
parser.add_option("-p", u"--port", type=u"int",
1681
help=u"Port number to receive requests on")
1682
parser.add_option("--check", action=u"store_true",
1683
help=u"Run self-test")
1684
parser.add_option("--debug", action=u"store_true",
1685
help=u"Debug mode; run in foreground and log to"
1686
u" terminal")
1687
parser.add_option("--debuglevel", type=u"string", metavar="LEVEL",
1688
help=u"Debug level for stdout output")
1689
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1690
u" priority string (see GnuTLS documentation)")
1691
parser.add_option("--servicename", type=u"string",
1692
metavar=u"NAME", help=u"Zeroconf service name")
1693
parser.add_option("--configdir", type=u"string",
1694
default=u"/etc/mandos", metavar=u"DIR",
1695
help=u"Directory to search for configuration"
1696
u" files")
1697
parser.add_option("--no-dbus", action=u"store_false",
1698
dest=u"use_dbus", help=u"Do not provide D-Bus"
1699
u" system bus interface")
1700
parser.add_option("--no-ipv6", action=u"store_false",
1701
dest=u"use_ipv6", help=u"Do not use IPv6")
1702
options = parser.parse_args()[0]
2300
parser = argparse.ArgumentParser()
2301
parser.add_argument("-v", "--version", action="version",
2302
version = "%(prog)s {0}".format(version),
2303
help="show version number and exit")
2304
parser.add_argument("-i", "--interface", metavar="IF",
2305
help="Bind to interface IF")
2306
parser.add_argument("-a", "--address",
2307
help="Address to listen for requests on")
2308
parser.add_argument("-p", "--port", type=int,
2309
help="Port number to receive requests on")
2310
parser.add_argument("--check", action="store_true",
2311
help="Run self-test")
2312
parser.add_argument("--debug", action="store_true",
2313
help="Debug mode; run in foreground and log"
2314
" to terminal", default=None)
2315
parser.add_argument("--debuglevel", metavar="LEVEL",
2316
help="Debug level for stdout output")
2317
parser.add_argument("--priority", help="GnuTLS"
2318
" priority string (see GnuTLS documentation)")
2319
parser.add_argument("--servicename",
2320
metavar="NAME", help="Zeroconf service name")
2321
parser.add_argument("--configdir",
2322
default="/etc/mandos", metavar="DIR",
2323
help="Directory to search for configuration"
2324
" files")
2325
parser.add_argument("--no-dbus", action="store_false",
2326
dest="use_dbus", help="Do not provide D-Bus"
2327
" system bus interface", default=None)
2328
parser.add_argument("--no-ipv6", action="store_false",
2329
dest="use_ipv6", help="Do not use IPv6",
2330
default=None)
2331
parser.add_argument("--no-restore", action="store_false",
2332
dest="restore", help="Do not restore stored"
2333
" state", default=None)
2334
parser.add_argument("--socket", type=int,
2335
help="Specify a file descriptor to a network"
2336
" socket to use instead of creating one")
2337
parser.add_argument("--statedir", metavar="DIR",
2338
help="Directory to save/restore state in")
2339
parser.add_argument("--foreground", action="store_true",
2340
help="Run in foreground", default=None)
2341
2342
options = parser.parse_args()
1703
2343
1704
2344
if options.check:
1705
2345
import doctest
1706
doctest.testmod()
1707
sys.exit()
2346
fail_count, test_count = doctest.testmod()
2347
sys.exit(os.EX_OK if fail_count == 0 else 1)
1708
2348
1709
2349
# Default values for config file for server-global settings
1710
server_defaults = { u"interface": u"",
1711
u"address": u"",
1712
u"port": u"",
1713
u"debug": u"False",
1714
u"priority":
1715
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1716
u"servicename": u"Mandos",
1717
u"use_dbus": u"True",
1718
u"use_ipv6": u"True",
1719
u"debuglevel": u"",
2350
server_defaults = { "interface": "",
2351
"address": "",
2352
"port": "",
2353
"debug": "False",
2354
"priority":
2355
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2356
"servicename": "Mandos",
2357
"use_dbus": "True",
2358
"use_ipv6": "True",
2359
"debuglevel": "",
2360
"restore": "True",
2361
"socket": "",
2362
"statedir": "/var/lib/mandos",
2363
"foreground": "False",
1720
2364
}
1721
2365
1722
2366
# Parse config file for server-global settings
1723
2367
server_config = configparser.SafeConfigParser(server_defaults)
1724
2368
del server_defaults
1725
2369
server_config.read(os.path.join(options.configdir,
1726
u"mandos.conf"))
2370
"mandos.conf"))
1727
2371
# Convert the SafeConfigParser object to a dict
1728
2372
server_settings = server_config.defaults()
1729
2373
# Use the appropriate methods on the non-string config options
1730
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1731
server_settings[option] = server_config.getboolean(u"DEFAULT",
2374
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2375
server_settings[option] = server_config.getboolean("DEFAULT",
1732
2376
option)
1733
2377
if server_settings["port"]:
1734
server_settings["port"] = server_config.getint(u"DEFAULT",
1735
u"port")
2378
server_settings["port"] = server_config.getint("DEFAULT",
2379
"port")
2380
if server_settings["socket"]:
2381
server_settings["socket"] = server_config.getint("DEFAULT",
2382
"socket")
2383
# Later, stdin will, and stdout and stderr might, be dup'ed
2384
# over with an opened os.devnull. But we don't want this to
2385
# happen with a supplied network socket.
2386
if 0 <= server_settings["socket"] <= 2:
2387
server_settings["socket"] = os.dup(server_settings
2388
["socket"])
1736
2389
del server_config
1737
2390
1738
2391
# Override the settings from the config file with command line
1739
2392
# options, if set.
1740
for option in (u"interface", u"address", u"port", u"debug",
1741
u"priority", u"servicename", u"configdir",
1742
u"use_dbus", u"use_ipv6", u"debuglevel"):
2393
for option in ("interface", "address", "port", "debug",
2394
"priority", "servicename", "configdir",
2395
"use_dbus", "use_ipv6", "debuglevel", "restore",
2396
"statedir", "socket", "foreground"):
1743
2397
value = getattr(options, option)
1744
2398
if value is not None:
1745
2399
server_settings[option] = value
1748
2402
for option in server_settings.keys():
1749
2403
if type(server_settings[option]) is str:
1750
2404
server_settings[option] = unicode(server_settings[option])
2405
# Force all boolean options to be boolean
2406
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2407
"foreground"):
2408
server_settings[option] = bool(server_settings[option])
2409
# Debug implies foreground
2410
if server_settings["debug"]:
2411
server_settings["foreground"] = True
1751
2412
# Now we have our good server settings in "server_settings"
1752
2413
1753
2414
##################################################################
1754
2415
1755
2416
# For convenience
1756
debug = server_settings[u"debug"]
1757
debuglevel = server_settings[u"debuglevel"]
1758
use_dbus = server_settings[u"use_dbus"]
1759
use_ipv6 = server_settings[u"use_ipv6"]
1760
1761
if server_settings[u"servicename"] != u"Mandos":
2417
debug = server_settings["debug"]
2418
debuglevel = server_settings["debuglevel"]
2419
use_dbus = server_settings["use_dbus"]
2420
use_ipv6 = server_settings["use_ipv6"]
2421
stored_state_path = os.path.join(server_settings["statedir"],
2422
stored_state_file)
2423
foreground = server_settings["foreground"]
2424
2425
if debug:
2426
initlogger(debug, logging.DEBUG)
2427
else:
2428
if not debuglevel:
2429
initlogger(debug)
2430
else:
2431
level = getattr(logging, debuglevel.upper())
2432
initlogger(debug, level)
2433
2434
if server_settings["servicename"] != "Mandos":
1762
2435
syslogger.setFormatter(logging.Formatter
1763
(u'Mandos (%s) [%%(process)d]:'
1764
u' %%(levelname)s: %%(message)s'
1765
% server_settings[u"servicename"]))
2436
('Mandos ({0}) [%(process)d]:'
2437
' %(levelname)s: %(message)s'
2438
.format(server_settings
2439
["servicename"])))
1766
2440
1767
2441
# Parse config file with clients
1768
client_defaults = { u"timeout": u"1h",
1769
u"interval": u"5m",
1770
u"checker": u"fping -q -- %%(host)s",
1771
u"host": u"",
1772
u"approval_delay": u"0s",
1773
u"approval_duration": u"1s",
1774
}
1775
client_config = configparser.SafeConfigParser(client_defaults)
1776
client_config.read(os.path.join(server_settings[u"configdir"],
1777
u"clients.conf"))
2442
client_config = configparser.SafeConfigParser(Client
2443
.client_defaults)
2444
client_config.read(os.path.join(server_settings["configdir"],
2445
"clients.conf"))
1778
2446
1779
2447
global mandos_dbus_service
1780
2448
mandos_dbus_service = None
1781
2449
1782
tcp_server = MandosServer((server_settings[u"address"],
1783
server_settings[u"port"]),
2450
tcp_server = MandosServer((server_settings["address"],
2451
server_settings["port"]),
1784
2452
ClientHandler,
1785
interface=(server_settings[u"interface"]
2453
interface=(server_settings["interface"]
1786
2454
or None),
1787
2455
use_ipv6=use_ipv6,
1788
2456
gnutls_priority=
1789
server_settings[u"priority"],
1790
use_dbus=use_dbus)
1791
if not debug:
1792
pidfilename = u"/var/run/mandos.pid"
2457
server_settings["priority"],
2458
use_dbus=use_dbus,
2459
socketfd=(server_settings["socket"]
2460
or None))
2461
if not foreground:
2462
pidfilename = "/run/mandos.pid"
2463
if not os.path.isdir("/run/."):
2464
pidfilename = "/var/run/mandos.pid"
2465
pidfile = None
1793
2466
try:
1794
pidfile = open(pidfilename, u"w")
1795
except IOError:
1796
logger.error(u"Could not open file %r", pidfilename)
2467
pidfile = open(pidfilename, "w")
2468
except IOError as e:
2469
logger.error("Could not open file %r", pidfilename,
2470
exc_info=e)
1797
2471
1798
try:
1799
uid = pwd.getpwnam(u"_mandos").pw_uid
1800
gid = pwd.getpwnam(u"_mandos").pw_gid
1801
except KeyError:
2472
for name in ("_mandos", "mandos", "nobody"):
1802
2473
try:
1803
uid = pwd.getpwnam(u"mandos").pw_uid
1804
gid = pwd.getpwnam(u"mandos").pw_gid
2474
uid = pwd.getpwnam(name).pw_uid
2475
gid = pwd.getpwnam(name).pw_gid
2476
break
1805
2477
except KeyError:
1806
try:
1807
uid = pwd.getpwnam(u"nobody").pw_uid
1808
gid = pwd.getpwnam(u"nobody").pw_gid
1809
except KeyError:
1810
uid = 65534
1811
gid = 65534
2478
continue
2479
else:
2480
uid = 65534
2481
gid = 65534
1812
2482
try:
1813
2483
os.setgid(gid)
1814
2484
os.setuid(uid)
1815
except OSError, error:
1816
if error[0] != errno.EPERM:
1817
raise error
2485
except OSError as error:
2486
if error.errno != errno.EPERM:
2487
raise
1818
2488
1819
if not debug and not debuglevel:
1820
syslogger.setLevel(logging.WARNING)
1821
console.setLevel(logging.WARNING)
1822
if debuglevel:
1823
level = getattr(logging, debuglevel.upper())
1824
syslogger.setLevel(level)
1825
console.setLevel(level)
1826
1827
2489
if debug:
1828
2490
# Enable all possible GnuTLS debugging
1829
2491
1833
2495
1834
2496
@gnutls.library.types.gnutls_log_func
1835
2497
def debug_gnutls(level, string):
1836
logger.debug(u"GnuTLS: %s", string[:-1])
2498
logger.debug("GnuTLS: %s", string[:-1])
1837
2499
1838
2500
(gnutls.library.functions
1839
2501
.gnutls_global_set_log_function(debug_gnutls))
1840
2502
1841
2503
# Redirect stdin so all checkers get /dev/null
1842
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2504
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1843
2505
os.dup2(null, sys.stdin.fileno())
1844
2506
if null > 2:
1845
2507
os.close(null)
1846
else:
1847
# No console logging
1848
logger.removeHandler(console)
1849
2508
2509
# Need to fork before connecting to D-Bus
2510
if not foreground:
2511
# Close all input and output, do double fork, etc.
2512
daemon()
2513
2514
# multiprocessing will use threads, so before we use gobject we
2515
# need to inform gobject that threads will be used.
2516
gobject.threads_init()
1850
2517
1851
2518
global main_loop
1852
2519
# From the Avahi example code
1853
DBusGMainLoop(set_as_default=True )
2520
DBusGMainLoop(set_as_default=True)
1854
2521
main_loop = gobject.MainLoop()
1855
2522
bus = dbus.SystemBus()
1856
2523
# End of Avahi example code
1857
2524
if use_dbus:
1858
2525
try:
1859
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2526
bus_name = dbus.service.BusName("se.recompile.Mandos",
1860
2527
bus, do_not_queue=True)
1861
except dbus.exceptions.NameExistsException, e:
1862
logger.error(unicode(e) + u", disabling D-Bus")
2528
old_bus_name = (dbus.service.BusName
2529
("se.bsnet.fukt.Mandos", bus,
2530
do_not_queue=True))
2531
except dbus.exceptions.NameExistsException as e:
2532
logger.error("Disabling D-Bus:", exc_info=e)
1863
2533
use_dbus = False
1864
server_settings[u"use_dbus"] = False
2534
server_settings["use_dbus"] = False
1865
2535
tcp_server.use_dbus = False
1866
2536
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1867
service = AvahiService(name = server_settings[u"servicename"],
1868
servicetype = u"_mandos._tcp",
1869
protocol = protocol, bus = bus)
2537
service = AvahiServiceToSyslog(name =
2538
server_settings["servicename"],
2539
servicetype = "_mandos._tcp",
2540
protocol = protocol, bus = bus)
1870
2541
if server_settings["interface"]:
1871
2542
service.interface = (if_nametoindex
1872
(str(server_settings[u"interface"])))
1873
1874
if not debug:
1875
# Close all input and output, do double fork, etc.
1876
daemon()
1877
2543
(str(server_settings["interface"])))
2544
1878
2545
global multiprocessing_manager
1879
2546
multiprocessing_manager = multiprocessing.Manager()
1880
2547
1881
2548
client_class = Client
1882
2549
if use_dbus:
1883
2550
client_class = functools.partial(ClientDBus, bus = bus)
1884
def client_config_items(config, section):
1885
special_settings = {
1886
"approved_by_default":
1887
lambda: config.getboolean(section,
1888
"approved_by_default"),
1889
}
1890
for name, value in config.items(section):
2551
2552
client_settings = Client.config_parser(client_config)
2553
old_client_settings = {}
2554
clients_data = {}
2555
2556
# This is used to redirect stdout and stderr for checker processes
2557
global wnull
2558
wnull = open(os.devnull, "w") # A writable /dev/null
2559
# Only used if server is running in foreground but not in debug
2560
# mode
2561
if debug or not foreground:
2562
wnull.close()
2563
2564
# Get client data and settings from last running state.
2565
if server_settings["restore"]:
2566
try:
2567
with open(stored_state_path, "rb") as stored_state:
2568
clients_data, old_client_settings = (pickle.load
2569
(stored_state))
2570
os.remove(stored_state_path)
2571
except IOError as e:
2572
if e.errno == errno.ENOENT:
2573
logger.warning("Could not load persistent state: {0}"
2574
.format(os.strerror(e.errno)))
2575
else:
2576
logger.critical("Could not load persistent state:",
2577
exc_info=e)
2578
raise
2579
except EOFError as e:
2580
logger.warning("Could not load persistent state: "
2581
"EOFError:", exc_info=e)
2582
2583
with PGPEngine() as pgp:
2584
for client_name, client in clients_data.iteritems():
2585
# Skip removed clients
2586
if client_name not in client_settings:
2587
continue
2588
2589
# Decide which value to use after restoring saved state.
2590
# We have three different values: Old config file,
2591
# new config file, and saved state.
2592
# New config value takes precedence if it differs from old
2593
# config value, otherwise use saved state.
2594
for name, value in client_settings[client_name].items():
2595
try:
2596
# For each value in new config, check if it
2597
# differs from the old config value (Except for
2598
# the "secret" attribute)
2599
if (name != "secret" and
2600
value != old_client_settings[client_name]
2601
[name]):
2602
client[name] = value
2603
except KeyError:
2604
pass
2605
2606
# Clients who has passed its expire date can still be
2607
# enabled if its last checker was successful. Clients
2608
# whose checker succeeded before we stored its state is
2609
# assumed to have successfully run all checkers during
2610
# downtime.
2611
if client["enabled"]:
2612
if datetime.datetime.utcnow() >= client["expires"]:
2613
if not client["last_checked_ok"]:
2614
logger.warning(
2615
"disabling client {0} - Client never "
2616
"performed a successful checker"
2617
.format(client_name))
2618
client["enabled"] = False
2619
elif client["last_checker_status"] != 0:
2620
logger.warning(
2621
"disabling client {0} - Client "
2622
"last checker failed with error code {1}"
2623
.format(client_name,
2624
client["last_checker_status"]))
2625
client["enabled"] = False
2626
else:
2627
client["expires"] = (datetime.datetime
2628
.utcnow()
2629
+ client["timeout"])
2630
logger.debug("Last checker succeeded,"
2631
" keeping {0} enabled"
2632
.format(client_name))
1891
2633
try:
1892
yield (name, special_settings[name]())
1893
except KeyError:
1894
yield (name, value)
1895
1896
tcp_server.clients.update(set(
1897
client_class(name = section,
1898
config= dict(client_config_items(
1899
client_config, section)))
1900
for section in client_config.sections()))
2634
client["secret"] = (
2635
pgp.decrypt(client["encrypted_secret"],
2636
client_settings[client_name]
2637
["secret"]))
2638
except PGPError:
2639
# If decryption fails, we use secret from new settings
2640
logger.debug("Failed to decrypt {0} old secret"
2641
.format(client_name))
2642
client["secret"] = (
2643
client_settings[client_name]["secret"])
2644
2645
# Add/remove clients based on new changes made to config
2646
for client_name in (set(old_client_settings)
2647
- set(client_settings)):
2648
del clients_data[client_name]
2649
for client_name in (set(client_settings)
2650
- set(old_client_settings)):
2651
clients_data[client_name] = client_settings[client_name]
2652
2653
# Create all client objects
2654
for client_name, client in clients_data.iteritems():
2655
tcp_server.clients[client_name] = client_class(
2656
name = client_name, settings = client,
2657
server_settings = server_settings)
2658
1901
2659
if not tcp_server.clients:
1902
logger.warning(u"No clients defined")
1903
1904
if not debug:
1905
try:
1906
with pidfile:
1907
pid = os.getpid()
1908
pidfile.write(str(pid) + "\n")
1909
del pidfile
1910
except IOError:
1911
logger.error(u"Could not write to file %r with PID %d",
1912
pidfilename, pid)
1913
except NameError:
1914
# "pidfile" was never created
1915
pass
2660
logger.warning("No clients defined")
2661
2662
if not foreground:
2663
if pidfile is not None:
2664
try:
2665
with pidfile:
2666
pid = os.getpid()
2667
pidfile.write(str(pid) + "\n".encode("utf-8"))
2668
except IOError:
2669
logger.error("Could not write to file %r with PID %d",
2670
pidfilename, pid)
2671
del pidfile
1916
2672
del pidfilename
1917
1918
signal.signal(signal.SIGINT, signal.SIG_IGN)
1919
2673
1920
2674
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1921
2675
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1922
2676
1923
2677
if use_dbus:
1924
class MandosDBusService(dbus.service.Object):
2678
@alternate_dbus_interfaces({"se.recompile.Mandos":
2679
"se.bsnet.fukt.Mandos"})
2680
class MandosDBusService(DBusObjectWithProperties):
1925
2681
"""A D-Bus proxy object"""
1926
2682
def __init__(self):
1927
dbus.service.Object.__init__(self, bus, u"/")
1928
_interface = u"se.bsnet.fukt.Mandos"
1929
1930
@dbus.service.signal(_interface, signature=u"o")
2683
dbus.service.Object.__init__(self, bus, "/")
2684
_interface = "se.recompile.Mandos"
2685
2686
@dbus_interface_annotations(_interface)
2687
def _foo(self):
2688
return { "org.freedesktop.DBus.Property"
2689
".EmitsChangedSignal":
2690
"false"}
2691
2692
@dbus.service.signal(_interface, signature="o")
1931
2693
def ClientAdded(self, objpath):
1932
2694
"D-Bus signal"
1933
2695
pass
1934
2696
1935
@dbus.service.signal(_interface, signature=u"ss")
2697
@dbus.service.signal(_interface, signature="ss")
1936
2698
def ClientNotFound(self, fingerprint, address):
1937
2699
"D-Bus signal"
1938
2700
pass
1939
2701
1940
@dbus.service.signal(_interface, signature=u"os")
2702
@dbus.service.signal(_interface, signature="os")
1941
2703
def ClientRemoved(self, objpath, name):
1942
2704
"D-Bus signal"
1943
2705
pass
1944
2706
1945
@dbus.service.method(_interface, out_signature=u"ao")
2707
@dbus.service.method(_interface, out_signature="ao")
1946
2708
def GetAllClients(self):
1947
2709
"D-Bus method"
1948
2710
return dbus.Array(c.dbus_object_path
1949
for c in tcp_server.clients)
2711
for c in
2712
tcp_server.clients.itervalues())
1950
2713
1951
2714
@dbus.service.method(_interface,
1952
out_signature=u"a{oa{sv}}")
2715
out_signature="a{oa{sv}}")
1953
2716
def GetAllClientsWithProperties(self):
1954
2717
"D-Bus method"
1955
2718
return dbus.Dictionary(
1956
((c.dbus_object_path, c.GetAll(u""))
1957
for c in tcp_server.clients),
1958
signature=u"oa{sv}")
2719
((c.dbus_object_path, c.GetAll(""))
2720
for c in tcp_server.clients.itervalues()),
2721
signature="oa{sv}")
1959
2722
1960
@dbus.service.method(_interface, in_signature=u"o")
2723
@dbus.service.method(_interface, in_signature="o")
1961
2724
def RemoveClient(self, object_path):
1962
2725
"D-Bus method"
1963
for c in tcp_server.clients:
2726
for c in tcp_server.clients.itervalues():
1964
2727
if c.dbus_object_path == object_path:
1965
tcp_server.clients.remove(c)
2728
del tcp_server.clients[c.name]
1966
2729
c.remove_from_connection()
1967
2730
# Don't signal anything except ClientRemoved
1968
2731
c.disable(quiet=True)
1979
2742
"Cleanup function; run on exit"
1980
2743
service.cleanup()
1981
2744
2745
multiprocessing.active_children()
2746
wnull.close()
2747
if not (tcp_server.clients or client_settings):
2748
return
2749
2750
# Store client before exiting. Secrets are encrypted with key
2751
# based on what config file has. If config file is
2752
# removed/edited, old secret will thus be unrecovable.
2753
clients = {}
2754
with PGPEngine() as pgp:
2755
for client in tcp_server.clients.itervalues():
2756
key = client_settings[client.name]["secret"]
2757
client.encrypted_secret = pgp.encrypt(client.secret,
2758
key)
2759
client_dict = {}
2760
2761
# A list of attributes that can not be pickled
2762
# + secret.
2763
exclude = set(("bus", "changedstate", "secret",
2764
"checker", "server_settings"))
2765
for name, typ in (inspect.getmembers
2766
(dbus.service.Object)):
2767
exclude.add(name)
2768
2769
client_dict["encrypted_secret"] = (client
2770
.encrypted_secret)
2771
for attr in client.client_structure:
2772
if attr not in exclude:
2773
client_dict[attr] = getattr(client, attr)
2774
2775
clients[client.name] = client_dict
2776
del client_settings[client.name]["secret"]
2777
2778
try:
2779
with (tempfile.NamedTemporaryFile
2780
(mode='wb', suffix=".pickle", prefix='clients-',
2781
dir=os.path.dirname(stored_state_path),
2782
delete=False)) as stored_state:
2783
pickle.dump((clients, client_settings), stored_state)
2784
tempname=stored_state.name
2785
os.rename(tempname, stored_state_path)
2786
except (IOError, OSError) as e:
2787
if not debug:
2788
try:
2789
os.remove(tempname)
2790
except NameError:
2791
pass
2792
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2793
logger.warning("Could not save persistent state: {0}"
2794
.format(os.strerror(e.errno)))
2795
else:
2796
logger.warning("Could not save persistent state:",
2797
exc_info=e)
2798
raise
2799
2800
# Delete all clients, and settings from config
1982
2801
while tcp_server.clients:
1983
client = tcp_server.clients.pop()
2802
name, client = tcp_server.clients.popitem()
1984
2803
if use_dbus:
1985
2804
client.remove_from_connection()
1986
client.disable_hook = None
1987
2805
# Don't signal anything except ClientRemoved
1988
2806
client.disable(quiet=True)
1989
2807
if use_dbus:
1990
2808
# Emit D-Bus signal
1991
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2809
mandos_dbus_service.ClientRemoved(client
2810
.dbus_object_path,
1992
2811
client.name)
2812
client_settings.clear()
1993
2813
1994
2814
atexit.register(cleanup)
1995
2815
1996
for client in tcp_server.clients:
2816
for client in tcp_server.clients.itervalues():
1997
2817
if use_dbus:
1998
2818
# Emit D-Bus signal
1999
2819
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2000
client.enable()
2820
# Need to initiate checking of clients
2821
if client.enabled:
2822
client.init_checker()
2001
2823
2002
2824
tcp_server.enable()
2003
2825
tcp_server.server_activate()
2005
2827
# Find out what port we got
2006
2828
service.port = tcp_server.socket.getsockname()[1]
2007
2829
if use_ipv6:
2008
logger.info(u"Now listening on address %r, port %d,"
2009
" flowinfo %d, scope_id %d"
2010
% tcp_server.socket.getsockname())
2830
logger.info("Now listening on address %r, port %d,"
2831
" flowinfo %d, scope_id %d",
2832
*tcp_server.socket.getsockname())
2011
2833
else: # IPv4
2012
logger.info(u"Now listening on address %r, port %d"
2013
% tcp_server.socket.getsockname())
2834
logger.info("Now listening on address %r, port %d",
2835
*tcp_server.socket.getsockname())
2014
2836
2015
2837
#service.interface = tcp_server.socket.getsockname()[3]
2016
2838
2018
2840
# From the Avahi example code
2019
2841
try:
2020
2842
service.activate()
2021
except dbus.exceptions.DBusException, error:
2022
logger.critical(u"DBusException: %s", error)
2843
except dbus.exceptions.DBusException as error:
2844
logger.critical("D-Bus Exception", exc_info=error)
2023
2845
cleanup()
2024
2846
sys.exit(1)
2025
2847
# End of Avahi example code
2029
2851
(tcp_server.handle_request
2030
2852
(*args[2:], **kwargs) or True))
2031
2853
2032
logger.debug(u"Starting main loop")
2854
logger.debug("Starting main loop")
2033
2855
main_loop.run()
2034
except AvahiError, error:
2035
logger.critical(u"AvahiError: %s", error)
2856
except AvahiError as error:
2857
logger.critical("Avahi Error", exc_info=error)
2036
2858
cleanup()
2037
2859
sys.exit(1)
2038
2860
except KeyboardInterrupt:
2039
2861
if debug:
2040
print >> sys.stderr
2041
logger.debug(u"Server received KeyboardInterrupt")
2042
logger.debug(u"Server exiting")
2862
print("", file=sys.stderr)
2863
logger.debug("Server received KeyboardInterrupt")
2864
logger.debug("Server exiting")
2043
2865
# Must run before the D-Bus bus name gets deregistered
2044
2866
cleanup()
2045
2867
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0