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- Committer: Teddy Hogeborn
- Date: 2012-06-17 14:55:31 UTC
- mto: (301.1.1 release) (237.7.272 trunk)
- mto: This revision was merged to the branch mainline in revision 302.
- Revision ID: teddy@recompile.se-20120617145531-o24z982oerm6xb6s
* mandos: New "--foreground" option.
- files added:
- DBUS-API
- 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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13
# Everything else is
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# Copyright © 2008,2009 Teddy Hogeborn
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# Copyright © 2008,2009 Björn Påhlsson
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# Copyright © 2008-2012 Teddy Hogeborn
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# Copyright © 2008-2012 Björn Påhlsson
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# along with this program. If not, see
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29
# <http://www.gnu.org/licenses/>.
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#
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# Contact the authors at <mandos@fukt.bsnet.se>.
31
# Contact the authors at <mandos@recompile.se>.
32
32
#
33
33
34
from __future__ import division, with_statement, absolute_import
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
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from future_builtins import *
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38
36
39
import SocketServer as socketserver
37
40
import socket
38
import optparse
41
import argparse
39
42
import datetime
40
43
import errno
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import gnutls.crypto
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import logging
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import logging.handlers
57
60
import pwd
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from contextlib import closing
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import contextlib
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62
import struct
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63
import fcntl
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64
import functools
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import cPickle as pickle
66
import multiprocessing
67
import types
68
import binascii
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import tempfile
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import itertools
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import dbus
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import dbus.service
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78
import ctypes.util
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79
import xml.dom.minidom
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80
import inspect
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import GnuPGInterface
72
82
73
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try:
74
84
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
78
88
except ImportError:
79
89
SO_BINDTODEVICE = None
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90
81
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version = "1.0.12"
83
84
logger = logging.Logger(u'mandos')
91
version = "1.5.5"
92
stored_state_file = "clients.pickle"
93
94
logger = logging.getLogger()
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syslogger = (logging.handlers.SysLogHandler
86
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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
87
address = "/dev/log"))
88
syslogger.setFormatter(logging.Formatter
89
(u'Mandos [%(process)d]: %(levelname)s:'
90
u' %(message)s'))
91
logger.addHandler(syslogger)
92
93
console = logging.StreamHandler()
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console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
95
u' %(levelname)s:'
96
u' %(message)s'))
97
logger.addHandler(console)
97
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"),
112
ifreq[16:20])[0]
113
return interface_index
114
115
116
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'))
122
logger.addHandler(syslogger)
123
124
if debug:
125
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:'
129
' %(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
138
139
class PGPEngine(object):
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"""A simple class for OpenPGP symmetric encryption & decryption"""
141
def __init__(self):
142
self.gnupg = GnuPGInterface.GnuPG()
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self.tempdir = tempfile.mkdtemp(prefix="mandos-")
144
self.gnupg = GnuPGInterface.GnuPG()
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self.gnupg.options.meta_interactive = False
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self.gnupg.options.homedir = self.tempdir
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self.gnupg.options.extra_args.extend(['--force-mdc',
148
'--quiet',
149
'--no-use-agent'])
150
151
def __enter__(self):
152
return self
153
154
def __exit__(self, exc_type, exc_value, traceback):
155
self._cleanup()
156
return False
157
158
def __del__(self):
159
self._cleanup()
160
161
def _cleanup(self):
162
if self.tempdir is not None:
163
# Delete contents of tempdir
164
for root, dirs, files in os.walk(self.tempdir,
165
topdown = False):
166
for filename in files:
167
os.remove(os.path.join(root, filename))
168
for dirname in dirs:
169
os.rmdir(os.path.join(root, dirname))
170
# Remove tempdir
171
os.rmdir(self.tempdir)
172
self.tempdir = None
173
174
def password_encode(self, password):
175
# Passphrase can not be empty and can not contain newlines or
176
# NUL bytes. So we prefix it and hex encode it.
177
return b"mandos" + binascii.hexlify(password)
178
179
def encrypt(self, data, password):
180
self.gnupg.passphrase = self.password_encode(password)
181
with open(os.devnull, "w") as devnull:
182
try:
183
proc = self.gnupg.run(['--symmetric'],
184
create_fhs=['stdin', 'stdout'],
185
attach_fhs={'stderr': devnull})
186
with contextlib.closing(proc.handles['stdin']) as f:
187
f.write(data)
188
with contextlib.closing(proc.handles['stdout']) as f:
189
ciphertext = f.read()
190
proc.wait()
191
except IOError as e:
192
raise PGPError(e)
193
self.gnupg.passphrase = None
194
return ciphertext
195
196
def decrypt(self, data, password):
197
self.gnupg.passphrase = self.password_encode(password)
198
with open(os.devnull, "w") as devnull:
199
try:
200
proc = self.gnupg.run(['--decrypt'],
201
create_fhs=['stdin', 'stdout'],
202
attach_fhs={'stderr': devnull})
203
with contextlib.closing(proc.handles['stdin']) as f:
204
f.write(data)
205
with contextlib.closing(proc.handles['stdout']) as f:
206
decrypted_plaintext = f.read()
207
proc.wait()
208
except IOError as e:
209
raise PGPError(e)
210
self.gnupg.passphrase = None
211
return decrypted_plaintext
212
98
213
99
214
class AvahiError(Exception):
100
215
def __init__(self, value, *args, **kwargs):
116
231
Attributes:
117
232
interface: integer; avahi.IF_UNSPEC or an interface index.
118
233
Used to optionally bind to the specified interface.
119
name: string; Example: u'Mandos'
120
type: string; Example: u'_mandos._tcp'.
234
name: string; Example: 'Mandos'
235
type: string; Example: '_mandos._tcp'.
121
236
See <http://www.dns-sd.org/ServiceTypes.html>
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237
port: integer; what port to announce
123
238
TXT: list of strings; TXT record for the service
130
245
server: D-Bus Server
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246
bus: dbus.SystemBus()
132
247
"""
248
133
249
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
134
250
servicetype = None, port = None, TXT = None,
135
domain = u"", host = u"", max_renames = 32768,
251
domain = "", host = "", max_renames = 32768,
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protocol = avahi.PROTO_UNSPEC, bus = None):
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self.interface = interface
138
254
self.name = name
147
263
self.group = None # our entry group
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264
self.server = None
149
265
self.bus = bus
266
self.entry_group_state_changed_match = None
267
150
268
def rename(self):
151
269
"""Derived from the Avahi example code"""
152
270
if self.rename_count >= self.max_renames:
153
logger.critical(u"No suitable Zeroconf service name found"
154
u" after %i retries, exiting.",
271
logger.critical("No suitable Zeroconf service name found"
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" after %i retries, exiting.",
155
273
self.rename_count)
156
raise AvahiServiceError(u"Too many renames")
157
self.name = self.server.GetAlternativeServiceName(self.name)
158
logger.info(u"Changing Zeroconf service name to %r ...",
159
unicode(self.name))
160
syslogger.setFormatter(logging.Formatter
161
(u'Mandos (%s) [%%(process)d]:'
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u' %%(levelname)s: %%(message)s'
163
% self.name))
274
raise AvahiServiceError("Too many renames")
275
self.name = unicode(self.server
276
.GetAlternativeServiceName(self.name))
277
logger.info("Changing Zeroconf service name to %r ...",
278
self.name)
164
279
self.remove()
165
self.add()
280
try:
281
self.add()
282
except dbus.exceptions.DBusException as error:
283
logger.critical("D-Bus Exception", exc_info=error)
284
self.cleanup()
285
os._exit(1)
166
286
self.rename_count += 1
287
167
288
def remove(self):
168
289
"""Derived from the Avahi example code"""
290
if self.entry_group_state_changed_match is not None:
291
self.entry_group_state_changed_match.remove()
292
self.entry_group_state_changed_match = None
169
293
if self.group is not None:
170
294
self.group.Reset()
295
171
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def add(self):
172
297
"""Derived from the Avahi example code"""
298
self.remove()
173
299
if self.group is None:
174
300
self.group = dbus.Interface(
175
301
self.bus.get_object(avahi.DBUS_NAME,
176
302
self.server.EntryGroupNew()),
177
303
avahi.DBUS_INTERFACE_ENTRY_GROUP)
178
self.group.connect_to_signal('StateChanged',
179
self
180
.entry_group_state_changed)
181
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
304
self.entry_group_state_changed_match = (
305
self.group.connect_to_signal(
306
'StateChanged', self.entry_group_state_changed))
307
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
182
308
self.name, self.type)
183
309
self.group.AddService(
184
310
self.interface,
189
315
dbus.UInt16(self.port),
190
316
avahi.string_array_to_txt_array(self.TXT))
191
317
self.group.Commit()
318
192
319
def entry_group_state_changed(self, state, error):
193
320
"""Derived from the Avahi example code"""
194
logger.debug(u"Avahi state change: %i", state)
321
logger.debug("Avahi entry group state change: %i", state)
195
322
196
323
if state == avahi.ENTRY_GROUP_ESTABLISHED:
197
logger.debug(u"Zeroconf service established.")
324
logger.debug("Zeroconf service established.")
198
325
elif state == avahi.ENTRY_GROUP_COLLISION:
199
logger.warning(u"Zeroconf service name collision.")
326
logger.info("Zeroconf service name collision.")
200
327
self.rename()
201
328
elif state == avahi.ENTRY_GROUP_FAILURE:
202
logger.critical(u"Avahi: Error in group state changed %s",
329
logger.critical("Avahi: Error in group state changed %s",
203
330
unicode(error))
204
raise AvahiGroupError(u"State changed: %s"
205
% unicode(error))
331
raise AvahiGroupError("State changed: {0!s}"
332
.format(error))
333
206
334
def cleanup(self):
207
335
"""Derived from the Avahi example code"""
208
336
if self.group is not None:
209
self.group.Free()
337
try:
338
self.group.Free()
339
except (dbus.exceptions.UnknownMethodException,
340
dbus.exceptions.DBusException):
341
pass
210
342
self.group = None
211
def server_state_changed(self, state):
343
self.remove()
344
345
def server_state_changed(self, state, error=None):
212
346
"""Derived from the Avahi example code"""
213
if state == avahi.SERVER_COLLISION:
214
logger.error(u"Zeroconf server name collision")
215
self.remove()
347
logger.debug("Avahi server state change: %i", state)
348
bad_states = { avahi.SERVER_INVALID:
349
"Zeroconf server invalid",
350
avahi.SERVER_REGISTERING: None,
351
avahi.SERVER_COLLISION:
352
"Zeroconf server name collision",
353
avahi.SERVER_FAILURE:
354
"Zeroconf server failure" }
355
if state in bad_states:
356
if bad_states[state] is not None:
357
if error is None:
358
logger.error(bad_states[state])
359
else:
360
logger.error(bad_states[state] + ": %r", error)
361
self.cleanup()
216
362
elif state == avahi.SERVER_RUNNING:
217
363
self.add()
364
else:
365
if error is None:
366
logger.debug("Unknown state: %r", state)
367
else:
368
logger.debug("Unknown state: %r: %r", state, error)
369
218
370
def activate(self):
219
371
"""Derived from the Avahi example code"""
220
372
if self.server is None:
221
373
self.server = dbus.Interface(
222
374
self.bus.get_object(avahi.DBUS_NAME,
223
avahi.DBUS_PATH_SERVER),
375
avahi.DBUS_PATH_SERVER,
376
follow_name_owner_changes=True),
224
377
avahi.DBUS_INTERFACE_SERVER)
225
self.server.connect_to_signal(u"StateChanged",
378
self.server.connect_to_signal("StateChanged",
226
379
self.server_state_changed)
227
380
self.server_state_changed(self.server.GetState())
228
381
229
382
383
class AvahiServiceToSyslog(AvahiService):
384
def rename(self):
385
"""Add the new name to the syslog messages"""
386
ret = AvahiService.rename(self)
387
syslogger.setFormatter(logging.Formatter
388
('Mandos ({0}) [%(process)d]:'
389
' %(levelname)s: %(message)s'
390
.format(self.name)))
391
return ret
392
393
394
def timedelta_to_milliseconds(td):
395
"Convert a datetime.timedelta() to milliseconds"
396
return ((td.days * 24 * 60 * 60 * 1000)
397
+ (td.seconds * 1000)
398
+ (td.microseconds // 1000))
399
400
230
401
class Client(object):
231
402
"""A representation of a client host served by this server.
232
403
233
404
Attributes:
234
name: string; from the config file, used in log messages and
235
D-Bus identifiers
236
fingerprint: string (40 or 32 hexadecimal digits); used to
237
uniquely identify the client
238
secret: bytestring; sent verbatim (over TLS) to client
239
host: string; available for use by the checker command
240
created: datetime.datetime(); (UTC) object creation
241
last_enabled: datetime.datetime(); (UTC)
242
enabled: bool()
243
last_checked_ok: datetime.datetime(); (UTC) or None
244
timeout: datetime.timedelta(); How long from last_checked_ok
245
until this client is invalid
246
interval: datetime.timedelta(); How often to start a new checker
247
disable_hook: If set, called by disable() as disable_hook(self)
405
approved: bool(); 'None' if not yet approved/disapproved
406
approval_delay: datetime.timedelta(); Time to wait for approval
407
approval_duration: datetime.timedelta(); Duration of one approval
248
408
checker: subprocess.Popen(); a running checker process used
249
409
to see if the client lives.
250
410
'None' if no process is running.
251
checker_initiator_tag: a gobject event source tag, or None
252
disable_initiator_tag: - '' -
253
checker_callback_tag: - '' -
254
checker_command: string; External command which is run to check if
255
client lives. %() expansions are done at
411
checker_callback_tag: a gobject event source tag, or None
412
checker_command: string; External command which is run to check
413
if client lives. %() expansions are done at
256
414
runtime with vars(self) as dict, so that for
257
415
instance %(name)s can be used in the command.
416
checker_initiator_tag: a gobject event source tag, or None
417
created: datetime.datetime(); (UTC) object creation
418
client_structure: Object describing what attributes a client has
419
and is used for storing the client at exit
258
420
current_checker_command: string; current running checker_command
421
disable_initiator_tag: a gobject event source tag, or None
422
enabled: bool()
423
fingerprint: string (40 or 32 hexadecimal digits); used to
424
uniquely identify the client
425
host: string; available for use by the checker command
426
interval: datetime.timedelta(); How often to start a new checker
427
last_approval_request: datetime.datetime(); (UTC) or None
428
last_checked_ok: datetime.datetime(); (UTC) or None
429
last_checker_status: integer between 0 and 255 reflecting exit
430
status of last checker. -1 reflects crashed
431
checker, -2 means no checker completed yet.
432
last_enabled: datetime.datetime(); (UTC) or None
433
name: string; from the config file, used in log messages and
434
D-Bus identifiers
435
secret: bytestring; sent verbatim (over TLS) to client
436
timeout: datetime.timedelta(); How long from last_checked_ok
437
until this client is disabled
438
extended_timeout: extra long timeout when secret has been sent
439
runtime_expansions: Allowed attributes for runtime expansion.
440
expires: datetime.datetime(); time (UTC) when a client will be
441
disabled, or None
259
442
"""
260
443
261
@staticmethod
262
def _timedelta_to_milliseconds(td):
263
"Convert a datetime.timedelta() to milliseconds"
264
return ((td.days * 24 * 60 * 60 * 1000)
265
+ (td.seconds * 1000)
266
+ (td.microseconds // 1000))
444
runtime_expansions = ("approval_delay", "approval_duration",
445
"created", "enabled", "expires",
446
"fingerprint", "host", "interval",
447
"last_approval_request", "last_checked_ok",
448
"last_enabled", "name", "timeout")
449
client_defaults = { "timeout": "5m",
450
"extended_timeout": "15m",
451
"interval": "2m",
452
"checker": "fping -q -- %%(host)s",
453
"host": "",
454
"approval_delay": "0s",
455
"approval_duration": "1s",
456
"approved_by_default": "True",
457
"enabled": "True",
458
}
267
459
268
460
def timeout_milliseconds(self):
269
461
"Return the 'timeout' attribute in milliseconds"
270
return self._timedelta_to_milliseconds(self.timeout)
462
return timedelta_to_milliseconds(self.timeout)
463
464
def extended_timeout_milliseconds(self):
465
"Return the 'extended_timeout' attribute in milliseconds"
466
return timedelta_to_milliseconds(self.extended_timeout)
271
467
272
468
def interval_milliseconds(self):
273
469
"Return the 'interval' attribute in milliseconds"
274
return self._timedelta_to_milliseconds(self.interval)
275
276
def __init__(self, name = None, disable_hook=None, config=None):
277
"""Note: the 'checker' key in 'config' sets the
278
'checker_command' attribute and *not* the 'checker'
279
attribute."""
470
return timedelta_to_milliseconds(self.interval)
471
472
def approval_delay_milliseconds(self):
473
return timedelta_to_milliseconds(self.approval_delay)
474
475
@staticmethod
476
def config_parser(config):
477
"""Construct a new dict of client settings of this form:
478
{ client_name: {setting_name: value, ...}, ...}
479
with exceptions for any special settings as defined above.
480
NOTE: Must be a pure function. Must return the same result
481
value given the same arguments.
482
"""
483
settings = {}
484
for client_name in config.sections():
485
section = dict(config.items(client_name))
486
client = settings[client_name] = {}
487
488
client["host"] = section["host"]
489
# Reformat values from string types to Python types
490
client["approved_by_default"] = config.getboolean(
491
client_name, "approved_by_default")
492
client["enabled"] = config.getboolean(client_name,
493
"enabled")
494
495
client["fingerprint"] = (section["fingerprint"].upper()
496
.replace(" ", ""))
497
if "secret" in section:
498
client["secret"] = section["secret"].decode("base64")
499
elif "secfile" in section:
500
with open(os.path.expanduser(os.path.expandvars
501
(section["secfile"])),
502
"rb") as secfile:
503
client["secret"] = secfile.read()
504
else:
505
raise TypeError("No secret or secfile for section {0}"
506
.format(section))
507
client["timeout"] = string_to_delta(section["timeout"])
508
client["extended_timeout"] = string_to_delta(
509
section["extended_timeout"])
510
client["interval"] = string_to_delta(section["interval"])
511
client["approval_delay"] = string_to_delta(
512
section["approval_delay"])
513
client["approval_duration"] = string_to_delta(
514
section["approval_duration"])
515
client["checker_command"] = section["checker"]
516
client["last_approval_request"] = None
517
client["last_checked_ok"] = None
518
client["last_checker_status"] = -2
519
520
return settings
521
522
def __init__(self, settings, name = None):
280
523
self.name = name
281
if config is None:
282
config = {}
283
logger.debug(u"Creating client %r", self.name)
524
# adding all client settings
525
for setting, value in settings.iteritems():
526
setattr(self, setting, value)
527
528
if self.enabled:
529
if not hasattr(self, "last_enabled"):
530
self.last_enabled = datetime.datetime.utcnow()
531
if not hasattr(self, "expires"):
532
self.expires = (datetime.datetime.utcnow()
533
+ self.timeout)
534
else:
535
self.last_enabled = None
536
self.expires = None
537
538
logger.debug("Creating client %r", self.name)
284
539
# Uppercase and remove spaces from fingerprint for later
285
540
# comparison purposes with return value from the fingerprint()
286
541
# function
287
self.fingerprint = (config[u"fingerprint"].upper()
288
.replace(u" ", u""))
289
logger.debug(u" Fingerprint: %s", self.fingerprint)
290
if u"secret" in config:
291
self.secret = config[u"secret"].decode(u"base64")
292
elif u"secfile" in config:
293
with closing(open(os.path.expanduser
294
(os.path.expandvars
295
(config[u"secfile"])))) as secfile:
296
self.secret = secfile.read()
297
else:
298
raise TypeError(u"No secret or secfile for client %s"
299
% self.name)
300
self.host = config.get(u"host", u"")
301
self.created = datetime.datetime.utcnow()
302
self.enabled = False
303
self.last_enabled = None
304
self.last_checked_ok = None
305
self.timeout = string_to_delta(config[u"timeout"])
306
self.interval = string_to_delta(config[u"interval"])
307
self.disable_hook = disable_hook
542
logger.debug(" Fingerprint: %s", self.fingerprint)
543
self.created = settings.get("created",
544
datetime.datetime.utcnow())
545
546
# attributes specific for this server instance
308
547
self.checker = None
309
548
self.checker_initiator_tag = None
310
549
self.disable_initiator_tag = None
311
550
self.checker_callback_tag = None
312
self.checker_command = config[u"checker"]
313
551
self.current_checker_command = None
314
self.last_connect = None
552
self.approved = None
553
self.approvals_pending = 0
554
self.changedstate = (multiprocessing_manager
555
.Condition(multiprocessing_manager
556
.Lock()))
557
self.client_structure = [attr for attr in
558
self.__dict__.iterkeys()
559
if not attr.startswith("_")]
560
self.client_structure.append("client_structure")
561
562
for name, t in inspect.getmembers(type(self),
563
lambda obj:
564
isinstance(obj,
565
property)):
566
if not name.startswith("_"):
567
self.client_structure.append(name)
568
569
# Send notice to process children that client state has changed
570
def send_changedstate(self):
571
with self.changedstate:
572
self.changedstate.notify_all()
315
573
316
574
def enable(self):
317
575
"""Start this client's checker and timeout hooks"""
318
if getattr(self, u"enabled", False):
576
if getattr(self, "enabled", False):
319
577
# Already enabled
320
578
return
579
self.expires = datetime.datetime.utcnow() + self.timeout
580
self.enabled = True
321
581
self.last_enabled = datetime.datetime.utcnow()
582
self.init_checker()
583
self.send_changedstate()
584
585
def disable(self, quiet=True):
586
"""Disable this client."""
587
if not getattr(self, "enabled", False):
588
return False
589
if not quiet:
590
logger.info("Disabling client %s", self.name)
591
if getattr(self, "disable_initiator_tag", None) is not None:
592
gobject.source_remove(self.disable_initiator_tag)
593
self.disable_initiator_tag = None
594
self.expires = None
595
if getattr(self, "checker_initiator_tag", None) is not None:
596
gobject.source_remove(self.checker_initiator_tag)
597
self.checker_initiator_tag = None
598
self.stop_checker()
599
self.enabled = False
600
if not quiet:
601
self.send_changedstate()
602
# Do not run this again if called by a gobject.timeout_add
603
return False
604
605
def __del__(self):
606
self.disable()
607
608
def init_checker(self):
322
609
# Schedule a new checker to be started an 'interval' from now,
323
610
# and every interval from then on.
611
if self.checker_initiator_tag is not None:
612
gobject.source_remove(self.checker_initiator_tag)
324
613
self.checker_initiator_tag = (gobject.timeout_add
325
614
(self.interval_milliseconds(),
326
615
self.start_checker))
327
# Also start a new checker *right now*.
328
self.start_checker()
329
616
# Schedule a disable() when 'timeout' has passed
617
if self.disable_initiator_tag is not None:
618
gobject.source_remove(self.disable_initiator_tag)
330
619
self.disable_initiator_tag = (gobject.timeout_add
331
620
(self.timeout_milliseconds(),
332
621
self.disable))
333
self.enabled = True
334
335
def disable(self):
336
"""Disable this client."""
337
if not getattr(self, "enabled", False):
338
return False
339
logger.info(u"Disabling client %s", self.name)
340
if getattr(self, u"disable_initiator_tag", False):
341
gobject.source_remove(self.disable_initiator_tag)
342
self.disable_initiator_tag = None
343
if getattr(self, u"checker_initiator_tag", False):
344
gobject.source_remove(self.checker_initiator_tag)
345
self.checker_initiator_tag = None
346
self.stop_checker()
347
if self.disable_hook:
348
self.disable_hook(self)
349
self.enabled = False
350
# Do not run this again if called by a gobject.timeout_add
351
return False
352
353
def __del__(self):
354
self.disable_hook = None
355
self.disable()
622
# Also start a new checker *right now*.
623
self.start_checker()
356
624
357
625
def checker_callback(self, pid, condition, command):
358
626
"""The checker has completed, so take appropriate actions."""
359
627
self.checker_callback_tag = None
360
628
self.checker = None
361
629
if os.WIFEXITED(condition):
362
exitstatus = os.WEXITSTATUS(condition)
363
if exitstatus == 0:
364
logger.info(u"Checker for %(name)s succeeded",
630
self.last_checker_status = os.WEXITSTATUS(condition)
631
if self.last_checker_status == 0:
632
logger.info("Checker for %(name)s succeeded",
365
633
vars(self))
366
634
self.checked_ok()
367
635
else:
368
logger.info(u"Checker for %(name)s failed",
636
logger.info("Checker for %(name)s failed",
369
637
vars(self))
370
638
else:
371
logger.warning(u"Checker for %(name)s crashed?",
639
self.last_checker_status = -1
640
logger.warning("Checker for %(name)s crashed?",
372
641
vars(self))
373
642
374
643
def checked_ok(self):
375
"""Bump up the timeout for this client.
376
377
This should only be called when the client has been seen,
378
alive and well.
379
"""
644
"""Assert that the client has been seen, alive and well."""
380
645
self.last_checked_ok = datetime.datetime.utcnow()
381
gobject.source_remove(self.disable_initiator_tag)
382
self.disable_initiator_tag = (gobject.timeout_add
383
(self.timeout_milliseconds(),
384
self.disable))
646
self.last_checker_status = 0
647
self.bump_timeout()
648
649
def bump_timeout(self, timeout=None):
650
"""Bump up the timeout for this client."""
651
if timeout is None:
652
timeout = self.timeout
653
if self.disable_initiator_tag is not None:
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = None
656
if getattr(self, "enabled", False):
657
self.disable_initiator_tag = (gobject.timeout_add
658
(timedelta_to_milliseconds
659
(timeout), self.disable))
660
self.expires = datetime.datetime.utcnow() + timeout
661
662
def need_approval(self):
663
self.last_approval_request = datetime.datetime.utcnow()
385
664
386
665
def start_checker(self):
387
666
"""Start a new checker subprocess if one is not running.
389
668
If a checker already exists, leave it running and do
390
669
nothing."""
391
670
# The reason for not killing a running checker is that if we
392
# did that, then if a checker (for some reason) started
393
# running slowly and taking more than 'interval' time, the
394
# client would inevitably timeout, since no checker would get
395
# a chance to run to completion. If we instead leave running
671
# did that, and if a checker (for some reason) started running
672
# slowly and taking more than 'interval' time, then the client
673
# would inevitably timeout, since no checker would get a
674
# chance to run to completion. If we instead leave running
396
675
# checkers alone, the checker would have to take more time
397
# than 'timeout' for the client to be declared invalid, which
398
# is as it should be.
676
# than 'timeout' for the client to be disabled, which is as it
677
# should be.
399
678
400
679
# If a checker exists, make sure it is not a zombie
401
if self.checker is not None:
680
try:
402
681
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
682
except (AttributeError, OSError) as error:
683
if (isinstance(error, OSError)
684
and error.errno != errno.ECHILD):
685
raise error
686
else:
403
687
if pid:
404
logger.warning(u"Checker was a zombie")
688
logger.warning("Checker was a zombie")
405
689
gobject.source_remove(self.checker_callback_tag)
406
690
self.checker_callback(pid, status,
407
691
self.current_checker_command)
408
692
# Start a new checker if needed
409
693
if self.checker is None:
694
# Escape attributes for the shell
695
escaped_attrs = dict(
696
(attr, re.escape(unicode(getattr(self, attr))))
697
for attr in
698
self.runtime_expansions)
410
699
try:
411
# In case checker_command has exactly one % operator
412
command = self.checker_command % self.host
413
except TypeError:
414
# Escape attributes for the shell
415
escaped_attrs = dict((key,
416
re.escape(unicode(str(val),
417
errors=
418
u'replace')))
419
for key, val in
420
vars(self).iteritems())
421
try:
422
command = self.checker_command % escaped_attrs
423
except TypeError, error:
424
logger.error(u'Could not format string "%s":'
425
u' %s', self.checker_command, error)
426
return True # Try again later
700
command = self.checker_command % escaped_attrs
701
except TypeError as error:
702
logger.error('Could not format string "%s"',
703
self.checker_command, exc_info=error)
704
return True # Try again later
427
705
self.current_checker_command = command
428
706
try:
429
logger.info(u"Starting checker %r for %s",
707
logger.info("Starting checker %r for %s",
430
708
command, self.name)
431
709
# We don't need to redirect stdout and stderr, since
432
710
# in normal mode, that is already done by daemon(),
434
712
# always replaced by /dev/null.)
435
713
self.checker = subprocess.Popen(command,
436
714
close_fds=True,
437
shell=True, cwd=u"/")
438
self.checker_callback_tag = (gobject.child_watch_add
439
(self.checker.pid,
440
self.checker_callback,
441
data=command))
442
# The checker may have completed before the gobject
443
# watch was added. Check for this.
444
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
445
if pid:
446
gobject.source_remove(self.checker_callback_tag)
447
self.checker_callback(pid, status, command)
448
except OSError, error:
449
logger.error(u"Failed to start subprocess: %s",
450
error)
715
shell=True, cwd="/")
716
except OSError as error:
717
logger.error("Failed to start subprocess",
718
exc_info=error)
719
self.checker_callback_tag = (gobject.child_watch_add
720
(self.checker.pid,
721
self.checker_callback,
722
data=command))
723
# The checker may have completed before the gobject
724
# watch was added. Check for this.
725
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
726
if pid:
727
gobject.source_remove(self.checker_callback_tag)
728
self.checker_callback(pid, status, command)
451
729
# Re-run this periodically if run by gobject.timeout_add
452
730
return True
453
731
456
734
if self.checker_callback_tag:
457
735
gobject.source_remove(self.checker_callback_tag)
458
736
self.checker_callback_tag = None
459
if getattr(self, u"checker", None) is None:
737
if getattr(self, "checker", None) is None:
460
738
return
461
logger.debug(u"Stopping checker for %(name)s", vars(self))
739
logger.debug("Stopping checker for %(name)s", vars(self))
462
740
try:
463
os.kill(self.checker.pid, signal.SIGTERM)
464
#os.sleep(0.5)
741
self.checker.terminate()
742
#time.sleep(0.5)
465
743
#if self.checker.poll() is None:
466
# os.kill(self.checker.pid, signal.SIGKILL)
467
except OSError, error:
744
# self.checker.kill()
745
except OSError as error:
468
746
if error.errno != errno.ESRCH: # No such process
469
747
raise
470
748
self.checker = None
471
472
def still_valid(self):
473
"""Has the timeout not yet passed for this client?"""
474
if not getattr(self, u"enabled", False):
475
return False
476
now = datetime.datetime.utcnow()
477
if self.last_checked_ok is None:
478
return now < (self.created + self.timeout)
479
else:
480
return now < (self.last_checked_ok + self.timeout)
481
482
483
def dbus_service_property(dbus_interface, signature=u"v",
484
access=u"readwrite", byte_arrays=False):
749
750
751
def dbus_service_property(dbus_interface, signature="v",
752
access="readwrite", byte_arrays=False):
485
753
"""Decorators for marking methods of a DBusObjectWithProperties to
486
754
become properties on the D-Bus.
487
755
492
760
dbus.service.method, except there is only "signature", since the
493
761
type from Get() and the type sent to Set() is the same.
494
762
"""
763
# Encoding deeply encoded byte arrays is not supported yet by the
764
# "Set" method, so we fail early here:
765
if byte_arrays and signature != "ay":
766
raise ValueError("Byte arrays not supported for non-'ay'"
767
" signature {0!r}".format(signature))
495
768
def decorator(func):
496
769
func._dbus_is_property = True
497
770
func._dbus_interface = dbus_interface
498
771
func._dbus_signature = signature
499
772
func._dbus_access = access
500
773
func._dbus_name = func.__name__
501
if func._dbus_name.endswith(u"_dbus_property"):
774
if func._dbus_name.endswith("_dbus_property"):
502
775
func._dbus_name = func._dbus_name[:-14]
503
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
776
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
777
return func
778
return decorator
779
780
781
def dbus_interface_annotations(dbus_interface):
782
"""Decorator for marking functions returning interface annotations
783
784
Usage:
785
786
@dbus_interface_annotations("org.example.Interface")
787
def _foo(self): # Function name does not matter
788
return {"org.freedesktop.DBus.Deprecated": "true",
789
"org.freedesktop.DBus.Property.EmitsChangedSignal":
790
"false"}
791
"""
792
def decorator(func):
793
func._dbus_is_interface = True
794
func._dbus_interface = dbus_interface
795
func._dbus_name = dbus_interface
796
return func
797
return decorator
798
799
800
def dbus_annotations(annotations):
801
"""Decorator to annotate D-Bus methods, signals or properties
802
Usage:
803
804
@dbus_service_property("org.example.Interface", signature="b",
805
access="r")
806
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
807
"org.freedesktop.DBus.Property."
808
"EmitsChangedSignal": "false"})
809
def Property_dbus_property(self):
810
return dbus.Boolean(False)
811
"""
812
def decorator(func):
813
func._dbus_annotations = annotations
504
814
return func
505
815
return decorator
506
816
526
836
527
837
class DBusObjectWithProperties(dbus.service.Object):
528
838
"""A D-Bus object with properties.
529
839
530
840
Classes inheriting from this can use the dbus_service_property
531
841
decorator to expose methods as D-Bus properties. It exposes the
532
842
standard Get(), Set(), and GetAll() methods on the D-Bus.
533
843
"""
534
844
535
845
@staticmethod
536
def _is_dbus_property(obj):
537
return getattr(obj, u"_dbus_is_property", False)
846
def _is_dbus_thing(thing):
847
"""Returns a function testing if an attribute is a D-Bus thing
848
849
If called like _is_dbus_thing("method") it returns a function
850
suitable for use as predicate to inspect.getmembers().
851
"""
852
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
853
False)
538
854
539
def _get_all_dbus_properties(self):
855
def _get_all_dbus_things(self, thing):
540
856
"""Returns a generator of (name, attribute) pairs
541
857
"""
542
return ((prop._dbus_name, prop)
543
for name, prop in
544
inspect.getmembers(self, self._is_dbus_property))
858
return ((getattr(athing.__get__(self), "_dbus_name",
859
name),
860
athing.__get__(self))
861
for cls in self.__class__.__mro__
862
for name, athing in
863
inspect.getmembers(cls,
864
self._is_dbus_thing(thing)))
545
865
546
866
def _get_dbus_property(self, interface_name, property_name):
547
867
"""Returns a bound method if one exists which is a D-Bus
548
868
property with the specified name and interface.
549
869
"""
550
for name in (property_name,
551
property_name + u"_dbus_property"):
552
prop = getattr(self, name, None)
553
if (prop is None
554
or not self._is_dbus_property(prop)
555
or prop._dbus_name != property_name
556
or (interface_name and prop._dbus_interface
557
and interface_name != prop._dbus_interface)):
558
continue
559
return prop
870
for cls in self.__class__.__mro__:
871
for name, value in (inspect.getmembers
872
(cls,
873
self._is_dbus_thing("property"))):
874
if (value._dbus_name == property_name
875
and value._dbus_interface == interface_name):
876
return value.__get__(self)
877
560
878
# No such property
561
raise DBusPropertyNotFound(self.dbus_object_path + u":"
562
+ interface_name + u"."
879
raise DBusPropertyNotFound(self.dbus_object_path + ":"
880
+ interface_name + "."
563
881
+ property_name)
564
882
565
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
566
out_signature=u"v")
883
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
884
out_signature="v")
567
885
def Get(self, interface_name, property_name):
568
886
"""Standard D-Bus property Get() method, see D-Bus standard.
569
887
"""
570
888
prop = self._get_dbus_property(interface_name, property_name)
571
if prop._dbus_access == u"write":
889
if prop._dbus_access == "write":
572
890
raise DBusPropertyAccessException(property_name)
573
891
value = prop()
574
if not hasattr(value, u"variant_level"):
892
if not hasattr(value, "variant_level"):
575
893
return value
576
894
return type(value)(value, variant_level=value.variant_level+1)
577
895
578
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
896
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
579
897
def Set(self, interface_name, property_name, value):
580
898
"""Standard D-Bus property Set() method, see D-Bus standard.
581
899
"""
582
900
prop = self._get_dbus_property(interface_name, property_name)
583
if prop._dbus_access == u"read":
901
if prop._dbus_access == "read":
584
902
raise DBusPropertyAccessException(property_name)
585
if prop._dbus_get_args_options[u"byte_arrays"]:
586
value = dbus.ByteArray(''.join(unichr(byte)
587
for byte in value))
903
if prop._dbus_get_args_options["byte_arrays"]:
904
# The byte_arrays option is not supported yet on
905
# signatures other than "ay".
906
if prop._dbus_signature != "ay":
907
raise ValueError
908
value = dbus.ByteArray(b''.join(chr(byte)
909
for byte in value))
588
910
prop(value)
589
911
590
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
591
out_signature=u"a{sv}")
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
913
out_signature="a{sv}")
592
914
def GetAll(self, interface_name):
593
915
"""Standard D-Bus property GetAll() method, see D-Bus
594
916
standard.
595
917
596
918
Note: Will not include properties with access="write".
597
919
"""
598
all = {}
599
for name, prop in self._get_all_dbus_properties():
920
properties = {}
921
for name, prop in self._get_all_dbus_things("property"):
600
922
if (interface_name
601
923
and interface_name != prop._dbus_interface):
602
924
# Interface non-empty but did not match
603
925
continue
604
926
# Ignore write-only properties
605
if prop._dbus_access == u"write":
927
if prop._dbus_access == "write":
606
928
continue
607
929
value = prop()
608
if not hasattr(value, u"variant_level"):
609
all[name] = value
930
if not hasattr(value, "variant_level"):
931
properties[name] = value
610
932
continue
611
all[name] = type(value)(value, variant_level=
612
value.variant_level+1)
613
return dbus.Dictionary(all, signature=u"sv")
933
properties[name] = type(value)(value, variant_level=
934
value.variant_level+1)
935
return dbus.Dictionary(properties, signature="sv")
614
936
615
937
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
616
out_signature=u"s",
938
out_signature="s",
617
939
path_keyword='object_path',
618
940
connection_keyword='connection')
619
941
def Introspect(self, object_path, connection):
620
"""Standard D-Bus method, overloaded to insert property tags.
942
"""Overloading of standard D-Bus method.
943
944
Inserts property tags and interface annotation tags.
621
945
"""
622
946
xmlstring = dbus.service.Object.Introspect(self, object_path,
623
connection)
624
document = xml.dom.minidom.parseString(xmlstring)
625
del xmlstring
626
def make_tag(document, name, prop):
627
e = document.createElement(u"property")
628
e.setAttribute(u"name", name)
629
e.setAttribute(u"type", prop._dbus_signature)
630
e.setAttribute(u"access", prop._dbus_access)
631
return e
632
for if_tag in document.getElementsByTagName(u"interface"):
633
for tag in (make_tag(document, name, prop)
634
for name, prop
635
in self._get_all_dbus_properties()
636
if prop._dbus_interface
637
== if_tag.getAttribute(u"name")):
638
if_tag.appendChild(tag)
639
xmlstring = document.toxml(u"utf-8")
640
document.unlink()
947
connection)
948
try:
949
document = xml.dom.minidom.parseString(xmlstring)
950
def make_tag(document, name, prop):
951
e = document.createElement("property")
952
e.setAttribute("name", name)
953
e.setAttribute("type", prop._dbus_signature)
954
e.setAttribute("access", prop._dbus_access)
955
return e
956
for if_tag in document.getElementsByTagName("interface"):
957
# Add property tags
958
for tag in (make_tag(document, name, prop)
959
for name, prop
960
in self._get_all_dbus_things("property")
961
if prop._dbus_interface
962
== if_tag.getAttribute("name")):
963
if_tag.appendChild(tag)
964
# Add annotation tags
965
for typ in ("method", "signal", "property"):
966
for tag in if_tag.getElementsByTagName(typ):
967
annots = dict()
968
for name, prop in (self.
969
_get_all_dbus_things(typ)):
970
if (name == tag.getAttribute("name")
971
and prop._dbus_interface
972
== if_tag.getAttribute("name")):
973
annots.update(getattr
974
(prop,
975
"_dbus_annotations",
976
{}))
977
for name, value in annots.iteritems():
978
ann_tag = document.createElement(
979
"annotation")
980
ann_tag.setAttribute("name", name)
981
ann_tag.setAttribute("value", value)
982
tag.appendChild(ann_tag)
983
# Add interface annotation tags
984
for annotation, value in dict(
985
itertools.chain.from_iterable(
986
annotations().iteritems()
987
for name, annotations in
988
self._get_all_dbus_things("interface")
989
if name == if_tag.getAttribute("name")
990
)).iteritems():
991
ann_tag = document.createElement("annotation")
992
ann_tag.setAttribute("name", annotation)
993
ann_tag.setAttribute("value", value)
994
if_tag.appendChild(ann_tag)
995
# Add the names to the return values for the
996
# "org.freedesktop.DBus.Properties" methods
997
if (if_tag.getAttribute("name")
998
== "org.freedesktop.DBus.Properties"):
999
for cn in if_tag.getElementsByTagName("method"):
1000
if cn.getAttribute("name") == "Get":
1001
for arg in cn.getElementsByTagName("arg"):
1002
if (arg.getAttribute("direction")
1003
== "out"):
1004
arg.setAttribute("name", "value")
1005
elif cn.getAttribute("name") == "GetAll":
1006
for arg in cn.getElementsByTagName("arg"):
1007
if (arg.getAttribute("direction")
1008
== "out"):
1009
arg.setAttribute("name", "props")
1010
xmlstring = document.toxml("utf-8")
1011
document.unlink()
1012
except (AttributeError, xml.dom.DOMException,
1013
xml.parsers.expat.ExpatError) as error:
1014
logger.error("Failed to override Introspection method",
1015
exc_info=error)
641
1016
return xmlstring
642
1017
643
1018
1019
def datetime_to_dbus(dt, variant_level=0):
1020
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1021
if dt is None:
1022
return dbus.String("", variant_level = variant_level)
1023
return dbus.String(dt.isoformat(),
1024
variant_level=variant_level)
1025
1026
1027
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1028
"""A class decorator; applied to a subclass of
1029
dbus.service.Object, it will add alternate D-Bus attributes with
1030
interface names according to the "alt_interface_names" mapping.
1031
Usage:
1032
1033
@alternate_dbus_interfaces({"org.example.Interface":
1034
"net.example.AlternateInterface"})
1035
class SampleDBusObject(dbus.service.Object):
1036
@dbus.service.method("org.example.Interface")
1037
def SampleDBusMethod():
1038
pass
1039
1040
The above "SampleDBusMethod" on "SampleDBusObject" will be
1041
reachable via two interfaces: "org.example.Interface" and
1042
"net.example.AlternateInterface", the latter of which will have
1043
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1044
"true", unless "deprecate" is passed with a False value.
1045
1046
This works for methods and signals, and also for D-Bus properties
1047
(from DBusObjectWithProperties) and interfaces (from the
1048
dbus_interface_annotations decorator).
1049
"""
1050
def wrapper(cls):
1051
for orig_interface_name, alt_interface_name in (
1052
alt_interface_names.iteritems()):
1053
attr = {}
1054
interface_names = set()
1055
# Go though all attributes of the class
1056
for attrname, attribute in inspect.getmembers(cls):
1057
# Ignore non-D-Bus attributes, and D-Bus attributes
1058
# with the wrong interface name
1059
if (not hasattr(attribute, "_dbus_interface")
1060
or not attribute._dbus_interface
1061
.startswith(orig_interface_name)):
1062
continue
1063
# Create an alternate D-Bus interface name based on
1064
# the current name
1065
alt_interface = (attribute._dbus_interface
1066
.replace(orig_interface_name,
1067
alt_interface_name))
1068
interface_names.add(alt_interface)
1069
# Is this a D-Bus signal?
1070
if getattr(attribute, "_dbus_is_signal", False):
1071
# Extract the original non-method function by
1072
# black magic
1073
nonmethod_func = (dict(
1074
zip(attribute.func_code.co_freevars,
1075
attribute.__closure__))["func"]
1076
.cell_contents)
1077
# Create a new, but exactly alike, function
1078
# object, and decorate it to be a new D-Bus signal
1079
# with the alternate D-Bus interface name
1080
new_function = (dbus.service.signal
1081
(alt_interface,
1082
attribute._dbus_signature)
1083
(types.FunctionType(
1084
nonmethod_func.func_code,
1085
nonmethod_func.func_globals,
1086
nonmethod_func.func_name,
1087
nonmethod_func.func_defaults,
1088
nonmethod_func.func_closure)))
1089
# Copy annotations, if any
1090
try:
1091
new_function._dbus_annotations = (
1092
dict(attribute._dbus_annotations))
1093
except AttributeError:
1094
pass
1095
# Define a creator of a function to call both the
1096
# original and alternate functions, so both the
1097
# original and alternate signals gets sent when
1098
# the function is called
1099
def fixscope(func1, func2):
1100
"""This function is a scope container to pass
1101
func1 and func2 to the "call_both" function
1102
outside of its arguments"""
1103
def call_both(*args, **kwargs):
1104
"""This function will emit two D-Bus
1105
signals by calling func1 and func2"""
1106
func1(*args, **kwargs)
1107
func2(*args, **kwargs)
1108
return call_both
1109
# Create the "call_both" function and add it to
1110
# the class
1111
attr[attrname] = fixscope(attribute, new_function)
1112
# Is this a D-Bus method?
1113
elif getattr(attribute, "_dbus_is_method", False):
1114
# Create a new, but exactly alike, function
1115
# object. Decorate it to be a new D-Bus method
1116
# with the alternate D-Bus interface name. Add it
1117
# to the class.
1118
attr[attrname] = (dbus.service.method
1119
(alt_interface,
1120
attribute._dbus_in_signature,
1121
attribute._dbus_out_signature)
1122
(types.FunctionType
1123
(attribute.func_code,
1124
attribute.func_globals,
1125
attribute.func_name,
1126
attribute.func_defaults,
1127
attribute.func_closure)))
1128
# Copy annotations, if any
1129
try:
1130
attr[attrname]._dbus_annotations = (
1131
dict(attribute._dbus_annotations))
1132
except AttributeError:
1133
pass
1134
# Is this a D-Bus property?
1135
elif getattr(attribute, "_dbus_is_property", False):
1136
# Create a new, but exactly alike, function
1137
# object, and decorate it to be a new D-Bus
1138
# property with the alternate D-Bus interface
1139
# name. Add it to the class.
1140
attr[attrname] = (dbus_service_property
1141
(alt_interface,
1142
attribute._dbus_signature,
1143
attribute._dbus_access,
1144
attribute
1145
._dbus_get_args_options
1146
["byte_arrays"])
1147
(types.FunctionType
1148
(attribute.func_code,
1149
attribute.func_globals,
1150
attribute.func_name,
1151
attribute.func_defaults,
1152
attribute.func_closure)))
1153
# Copy annotations, if any
1154
try:
1155
attr[attrname]._dbus_annotations = (
1156
dict(attribute._dbus_annotations))
1157
except AttributeError:
1158
pass
1159
# Is this a D-Bus interface?
1160
elif getattr(attribute, "_dbus_is_interface", False):
1161
# Create a new, but exactly alike, function
1162
# object. Decorate it to be a new D-Bus interface
1163
# with the alternate D-Bus interface name. Add it
1164
# to the class.
1165
attr[attrname] = (dbus_interface_annotations
1166
(alt_interface)
1167
(types.FunctionType
1168
(attribute.func_code,
1169
attribute.func_globals,
1170
attribute.func_name,
1171
attribute.func_defaults,
1172
attribute.func_closure)))
1173
if deprecate:
1174
# Deprecate all alternate interfaces
1175
iname="_AlternateDBusNames_interface_annotation{0}"
1176
for interface_name in interface_names:
1177
@dbus_interface_annotations(interface_name)
1178
def func(self):
1179
return { "org.freedesktop.DBus.Deprecated":
1180
"true" }
1181
# Find an unused name
1182
for aname in (iname.format(i)
1183
for i in itertools.count()):
1184
if aname not in attr:
1185
attr[aname] = func
1186
break
1187
if interface_names:
1188
# Replace the class with a new subclass of it with
1189
# methods, signals, etc. as created above.
1190
cls = type(b"{0}Alternate".format(cls.__name__),
1191
(cls,), attr)
1192
return cls
1193
return wrapper
1194
1195
1196
@alternate_dbus_interfaces({"se.recompile.Mandos":
1197
"se.bsnet.fukt.Mandos"})
644
1198
class ClientDBus(Client, DBusObjectWithProperties):
645
1199
"""A Client class using D-Bus
646
1200
648
1202
dbus_object_path: dbus.ObjectPath
649
1203
bus: dbus.SystemBus()
650
1204
"""
1205
1206
runtime_expansions = (Client.runtime_expansions
1207
+ ("dbus_object_path",))
1208
651
1209
# dbus.service.Object doesn't use super(), so we can't either.
652
1210
653
1211
def __init__(self, bus = None, *args, **kwargs):
655
1213
Client.__init__(self, *args, **kwargs)
656
1214
# Only now, when this client is initialized, can it show up on
657
1215
# the D-Bus
1216
client_object_name = unicode(self.name).translate(
1217
{ord("."): ord("_"),
1218
ord("-"): ord("_")})
658
1219
self.dbus_object_path = (dbus.ObjectPath
659
(u"/clients/"
660
+ self.name.replace(u".", u"_")))
1220
("/clients/" + client_object_name))
661
1221
DBusObjectWithProperties.__init__(self, self.bus,
662
1222
self.dbus_object_path)
663
1223
664
@staticmethod
665
def _datetime_to_dbus(dt, variant_level=0):
666
"""Convert a UTC datetime.datetime() to a D-Bus type."""
667
return dbus.String(dt.isoformat(),
668
variant_level=variant_level)
669
670
def enable(self):
671
oldstate = getattr(self, u"enabled", False)
672
r = Client.enable(self)
673
if oldstate != self.enabled:
674
# Emit D-Bus signals
675
self.PropertyChanged(dbus.String(u"enabled"),
676
dbus.Boolean(True, variant_level=1))
677
self.PropertyChanged(
678
dbus.String(u"last_enabled"),
679
self._datetime_to_dbus(self.last_enabled,
680
variant_level=1))
681
return r
682
683
def disable(self, signal = True):
684
oldstate = getattr(self, u"enabled", False)
685
r = Client.disable(self)
686
if signal and oldstate != self.enabled:
687
# Emit D-Bus signal
688
self.PropertyChanged(dbus.String(u"enabled"),
689
dbus.Boolean(False, variant_level=1))
690
return r
1224
def notifychangeproperty(transform_func,
1225
dbus_name, type_func=lambda x: x,
1226
variant_level=1):
1227
""" Modify a variable so that it's a property which announces
1228
its changes to DBus.
1229
1230
transform_fun: Function that takes a value and a variant_level
1231
and transforms it to a D-Bus type.
1232
dbus_name: D-Bus name of the variable
1233
type_func: Function that transform the value before sending it
1234
to the D-Bus. Default: no transform
1235
variant_level: D-Bus variant level. Default: 1
1236
"""
1237
attrname = "_{0}".format(dbus_name)
1238
def setter(self, value):
1239
if hasattr(self, "dbus_object_path"):
1240
if (not hasattr(self, attrname) or
1241
type_func(getattr(self, attrname, None))
1242
!= type_func(value)):
1243
dbus_value = transform_func(type_func(value),
1244
variant_level
1245
=variant_level)
1246
self.PropertyChanged(dbus.String(dbus_name),
1247
dbus_value)
1248
setattr(self, attrname, value)
1249
1250
return property(lambda self: getattr(self, attrname), setter)
1251
1252
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1253
approvals_pending = notifychangeproperty(dbus.Boolean,
1254
"ApprovalPending",
1255
type_func = bool)
1256
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1257
last_enabled = notifychangeproperty(datetime_to_dbus,
1258
"LastEnabled")
1259
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1260
type_func = lambda checker:
1261
checker is not None)
1262
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1263
"LastCheckedOK")
1264
last_checker_status = notifychangeproperty(dbus.Int16,
1265
"LastCheckerStatus")
1266
last_approval_request = notifychangeproperty(
1267
datetime_to_dbus, "LastApprovalRequest")
1268
approved_by_default = notifychangeproperty(dbus.Boolean,
1269
"ApprovedByDefault")
1270
approval_delay = notifychangeproperty(dbus.UInt64,
1271
"ApprovalDelay",
1272
type_func =
1273
timedelta_to_milliseconds)
1274
approval_duration = notifychangeproperty(
1275
dbus.UInt64, "ApprovalDuration",
1276
type_func = timedelta_to_milliseconds)
1277
host = notifychangeproperty(dbus.String, "Host")
1278
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1279
type_func =
1280
timedelta_to_milliseconds)
1281
extended_timeout = notifychangeproperty(
1282
dbus.UInt64, "ExtendedTimeout",
1283
type_func = timedelta_to_milliseconds)
1284
interval = notifychangeproperty(dbus.UInt64,
1285
"Interval",
1286
type_func =
1287
timedelta_to_milliseconds)
1288
checker_command = notifychangeproperty(dbus.String, "Checker")
1289
1290
del notifychangeproperty
691
1291
692
1292
def __del__(self, *args, **kwargs):
693
1293
try:
694
1294
self.remove_from_connection()
695
1295
except LookupError:
696
1296
pass
697
if hasattr(DBusObjectWithProperties, u"__del__"):
1297
if hasattr(DBusObjectWithProperties, "__del__"):
698
1298
DBusObjectWithProperties.__del__(self, *args, **kwargs)
699
1299
Client.__del__(self, *args, **kwargs)
700
1300
702
1302
*args, **kwargs):
703
1303
self.checker_callback_tag = None
704
1304
self.checker = None
705
# Emit D-Bus signal
706
self.PropertyChanged(dbus.String(u"checker_running"),
707
dbus.Boolean(False, variant_level=1))
708
1305
if os.WIFEXITED(condition):
709
1306
exitstatus = os.WEXITSTATUS(condition)
710
1307
# Emit D-Bus signal
720
1317
return Client.checker_callback(self, pid, condition, command,
721
1318
*args, **kwargs)
722
1319
723
def checked_ok(self, *args, **kwargs):
724
r = Client.checked_ok(self, *args, **kwargs)
725
# Emit D-Bus signal
726
self.PropertyChanged(
727
dbus.String(u"last_checked_ok"),
728
(self._datetime_to_dbus(self.last_checked_ok,
729
variant_level=1)))
730
return r
731
732
1320
def start_checker(self, *args, **kwargs):
733
1321
old_checker = self.checker
734
1322
if self.checker is not None:
741
1329
and old_checker_pid != self.checker.pid):
742
1330
# Emit D-Bus signal
743
1331
self.CheckerStarted(self.current_checker_command)
744
self.PropertyChanged(
745
dbus.String(u"checker_running"),
746
dbus.Boolean(True, variant_level=1))
747
return r
748
749
def stop_checker(self, *args, **kwargs):
750
old_checker = getattr(self, u"checker", None)
751
r = Client.stop_checker(self, *args, **kwargs)
752
if (old_checker is not None
753
and getattr(self, u"checker", None) is None):
754
self.PropertyChanged(dbus.String(u"checker_running"),
755
dbus.Boolean(False, variant_level=1))
756
return r
757
758
## D-Bus methods & signals
759
_interface = u"se.bsnet.fukt.Mandos.Client"
760
761
# CheckedOK - method
762
@dbus.service.method(_interface)
763
def CheckedOK(self):
764
return self.checked_ok()
1332
return r
1333
1334
def _reset_approved(self):
1335
self.approved = None
1336
return False
1337
1338
def approve(self, value=True):
1339
self.approved = value
1340
gobject.timeout_add(timedelta_to_milliseconds
1341
(self.approval_duration),
1342
self._reset_approved)
1343
self.send_changedstate()
1344
1345
## D-Bus methods, signals & properties
1346
_interface = "se.recompile.Mandos.Client"
1347
1348
## Interfaces
1349
1350
@dbus_interface_annotations(_interface)
1351
def _foo(self):
1352
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1353
"false"}
1354
1355
## Signals
765
1356
766
1357
# CheckerCompleted - signal
767
@dbus.service.signal(_interface, signature=u"nxs")
1358
@dbus.service.signal(_interface, signature="nxs")
768
1359
def CheckerCompleted(self, exitcode, waitstatus, command):
769
1360
"D-Bus signal"
770
1361
pass
771
1362
772
1363
# CheckerStarted - signal
773
@dbus.service.signal(_interface, signature=u"s")
1364
@dbus.service.signal(_interface, signature="s")
774
1365
def CheckerStarted(self, command):
775
1366
"D-Bus signal"
776
1367
pass
777
1368
778
1369
# PropertyChanged - signal
779
@dbus.service.signal(_interface, signature=u"sv")
1370
@dbus.service.signal(_interface, signature="sv")
780
1371
def PropertyChanged(self, property, value):
781
1372
"D-Bus signal"
782
1373
pass
783
1374
784
# ReceivedSecret - signal
1375
# GotSecret - signal
785
1376
@dbus.service.signal(_interface)
786
def ReceivedSecret(self):
787
"D-Bus signal"
1377
def GotSecret(self):
1378
"""D-Bus signal
1379
Is sent after a successful transfer of secret from the Mandos
1380
server to mandos-client
1381
"""
788
1382
pass
789
1383
790
1384
# Rejected - signal
791
@dbus.service.signal(_interface)
792
def Rejected(self):
1385
@dbus.service.signal(_interface, signature="s")
1386
def Rejected(self, reason):
793
1387
"D-Bus signal"
794
1388
pass
795
1389
1390
# NeedApproval - signal
1391
@dbus.service.signal(_interface, signature="tb")
1392
def NeedApproval(self, timeout, default):
1393
"D-Bus signal"
1394
return self.need_approval()
1395
1396
## Methods
1397
1398
# Approve - method
1399
@dbus.service.method(_interface, in_signature="b")
1400
def Approve(self, value):
1401
self.approve(value)
1402
1403
# CheckedOK - method
1404
@dbus.service.method(_interface)
1405
def CheckedOK(self):
1406
self.checked_ok()
1407
796
1408
# Enable - method
797
1409
@dbus.service.method(_interface)
798
1410
def Enable(self):
816
1428
def StopChecker(self):
817
1429
self.stop_checker()
818
1430
819
# name - property
820
@dbus_service_property(_interface, signature=u"s", access=u"read")
821
def name_dbus_property(self):
1431
## Properties
1432
1433
# ApprovalPending - property
1434
@dbus_service_property(_interface, signature="b", access="read")
1435
def ApprovalPending_dbus_property(self):
1436
return dbus.Boolean(bool(self.approvals_pending))
1437
1438
# ApprovedByDefault - property
1439
@dbus_service_property(_interface, signature="b",
1440
access="readwrite")
1441
def ApprovedByDefault_dbus_property(self, value=None):
1442
if value is None: # get
1443
return dbus.Boolean(self.approved_by_default)
1444
self.approved_by_default = bool(value)
1445
1446
# ApprovalDelay - property
1447
@dbus_service_property(_interface, signature="t",
1448
access="readwrite")
1449
def ApprovalDelay_dbus_property(self, value=None):
1450
if value is None: # get
1451
return dbus.UInt64(self.approval_delay_milliseconds())
1452
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1453
1454
# ApprovalDuration - property
1455
@dbus_service_property(_interface, signature="t",
1456
access="readwrite")
1457
def ApprovalDuration_dbus_property(self, value=None):
1458
if value is None: # get
1459
return dbus.UInt64(timedelta_to_milliseconds(
1460
self.approval_duration))
1461
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1462
1463
# Name - property
1464
@dbus_service_property(_interface, signature="s", access="read")
1465
def Name_dbus_property(self):
822
1466
return dbus.String(self.name)
823
1467
824
# fingerprint - property
825
@dbus_service_property(_interface, signature=u"s", access=u"read")
826
def fingerprint_dbus_property(self):
1468
# Fingerprint - property
1469
@dbus_service_property(_interface, signature="s", access="read")
1470
def Fingerprint_dbus_property(self):
827
1471
return dbus.String(self.fingerprint)
828
1472
829
# host - property
830
@dbus_service_property(_interface, signature=u"s",
831
access=u"readwrite")
832
def host_dbus_property(self, value=None):
1473
# Host - property
1474
@dbus_service_property(_interface, signature="s",
1475
access="readwrite")
1476
def Host_dbus_property(self, value=None):
833
1477
if value is None: # get
834
1478
return dbus.String(self.host)
835
self.host = value
836
# Emit D-Bus signal
837
self.PropertyChanged(dbus.String(u"host"),
838
dbus.String(value, variant_level=1))
839
840
# created - property
841
@dbus_service_property(_interface, signature=u"s", access=u"read")
842
def created_dbus_property(self):
843
return dbus.String(self._datetime_to_dbus(self.created))
844
845
# last_enabled - property
846
@dbus_service_property(_interface, signature=u"s", access=u"read")
847
def last_enabled_dbus_property(self):
848
if self.last_enabled is None:
849
return dbus.String(u"")
850
return dbus.String(self._datetime_to_dbus(self.last_enabled))
851
852
# enabled - property
853
@dbus_service_property(_interface, signature=u"b",
854
access=u"readwrite")
855
def enabled_dbus_property(self, value=None):
1479
self.host = unicode(value)
1480
1481
# Created - property
1482
@dbus_service_property(_interface, signature="s", access="read")
1483
def Created_dbus_property(self):
1484
return datetime_to_dbus(self.created)
1485
1486
# LastEnabled - property
1487
@dbus_service_property(_interface, signature="s", access="read")
1488
def LastEnabled_dbus_property(self):
1489
return datetime_to_dbus(self.last_enabled)
1490
1491
# Enabled - property
1492
@dbus_service_property(_interface, signature="b",
1493
access="readwrite")
1494
def Enabled_dbus_property(self, value=None):
856
1495
if value is None: # get
857
1496
return dbus.Boolean(self.enabled)
858
1497
if value:
860
1499
else:
861
1500
self.disable()
862
1501
863
# last_checked_ok - property
864
@dbus_service_property(_interface, signature=u"s",
865
access=u"readwrite")
866
def last_checked_ok_dbus_property(self, value=None):
1502
# LastCheckedOK - property
1503
@dbus_service_property(_interface, signature="s",
1504
access="readwrite")
1505
def LastCheckedOK_dbus_property(self, value=None):
867
1506
if value is not None:
868
1507
self.checked_ok()
869
1508
return
870
if self.last_checked_ok is None:
871
return dbus.String(u"")
872
return dbus.String(self._datetime_to_dbus(self
873
.last_checked_ok))
874
875
# timeout - property
876
@dbus_service_property(_interface, signature=u"t",
877
access=u"readwrite")
878
def timeout_dbus_property(self, value=None):
1509
return datetime_to_dbus(self.last_checked_ok)
1510
1511
# LastCheckerStatus - property
1512
@dbus_service_property(_interface, signature="n",
1513
access="read")
1514
def LastCheckerStatus_dbus_property(self):
1515
return dbus.Int16(self.last_checker_status)
1516
1517
# Expires - property
1518
@dbus_service_property(_interface, signature="s", access="read")
1519
def Expires_dbus_property(self):
1520
return datetime_to_dbus(self.expires)
1521
1522
# LastApprovalRequest - property
1523
@dbus_service_property(_interface, signature="s", access="read")
1524
def LastApprovalRequest_dbus_property(self):
1525
return datetime_to_dbus(self.last_approval_request)
1526
1527
# Timeout - property
1528
@dbus_service_property(_interface, signature="t",
1529
access="readwrite")
1530
def Timeout_dbus_property(self, value=None):
879
1531
if value is None: # get
880
1532
return dbus.UInt64(self.timeout_milliseconds())
1533
old_timeout = self.timeout
881
1534
self.timeout = datetime.timedelta(0, 0, 0, value)
882
# Emit D-Bus signal
883
self.PropertyChanged(dbus.String(u"timeout"),
884
dbus.UInt64(value, variant_level=1))
885
if getattr(self, u"disable_initiator_tag", None) is None:
886
return
887
# Reschedule timeout
888
gobject.source_remove(self.disable_initiator_tag)
889
self.disable_initiator_tag = None
890
time_to_die = (self.
891
_timedelta_to_milliseconds((self
892
.last_checked_ok
893
+ self.timeout)
894
- datetime.datetime
895
.utcnow()))
896
if time_to_die <= 0:
897
# The timeout has passed
898
self.disable()
899
else:
900
self.disable_initiator_tag = (gobject.timeout_add
901
(time_to_die, self.disable))
902
903
# interval - property
904
@dbus_service_property(_interface, signature=u"t",
905
access=u"readwrite")
906
def interval_dbus_property(self, value=None):
1535
# Reschedule disabling
1536
if self.enabled:
1537
now = datetime.datetime.utcnow()
1538
self.expires += self.timeout - old_timeout
1539
if self.expires <= now:
1540
# The timeout has passed
1541
self.disable()
1542
else:
1543
if (getattr(self, "disable_initiator_tag", None)
1544
is None):
1545
return
1546
gobject.source_remove(self.disable_initiator_tag)
1547
self.disable_initiator_tag = (
1548
gobject.timeout_add(
1549
timedelta_to_milliseconds(self.expires - now),
1550
self.disable))
1551
1552
# ExtendedTimeout - property
1553
@dbus_service_property(_interface, signature="t",
1554
access="readwrite")
1555
def ExtendedTimeout_dbus_property(self, value=None):
1556
if value is None: # get
1557
return dbus.UInt64(self.extended_timeout_milliseconds())
1558
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1559
1560
# Interval - property
1561
@dbus_service_property(_interface, signature="t",
1562
access="readwrite")
1563
def Interval_dbus_property(self, value=None):
907
1564
if value is None: # get
908
1565
return dbus.UInt64(self.interval_milliseconds())
909
1566
self.interval = datetime.timedelta(0, 0, 0, value)
910
# Emit D-Bus signal
911
self.PropertyChanged(dbus.String(u"interval"),
912
dbus.UInt64(value, variant_level=1))
913
if getattr(self, u"checker_initiator_tag", None) is None:
1567
if getattr(self, "checker_initiator_tag", None) is None:
914
1568
return
915
# Reschedule checker run
916
gobject.source_remove(self.checker_initiator_tag)
917
self.checker_initiator_tag = (gobject.timeout_add
918
(value, self.start_checker))
919
self.start_checker() # Start one now, too
920
921
# checker - property
922
@dbus_service_property(_interface, signature=u"s",
923
access=u"readwrite")
924
def checker_dbus_property(self, value=None):
1569
if self.enabled:
1570
# Reschedule checker run
1571
gobject.source_remove(self.checker_initiator_tag)
1572
self.checker_initiator_tag = (gobject.timeout_add
1573
(value, self.start_checker))
1574
self.start_checker() # Start one now, too
1575
1576
# Checker - property
1577
@dbus_service_property(_interface, signature="s",
1578
access="readwrite")
1579
def Checker_dbus_property(self, value=None):
925
1580
if value is None: # get
926
1581
return dbus.String(self.checker_command)
927
self.checker_command = value
928
# Emit D-Bus signal
929
self.PropertyChanged(dbus.String(u"checker"),
930
dbus.String(self.checker_command,
931
variant_level=1))
1582
self.checker_command = unicode(value)
932
1583
933
# checker_running - property
934
@dbus_service_property(_interface, signature=u"b",
935
access=u"readwrite")
936
def checker_running_dbus_property(self, value=None):
1584
# CheckerRunning - property
1585
@dbus_service_property(_interface, signature="b",
1586
access="readwrite")
1587
def CheckerRunning_dbus_property(self, value=None):
937
1588
if value is None: # get
938
1589
return dbus.Boolean(self.checker is not None)
939
1590
if value:
941
1592
else:
942
1593
self.stop_checker()
943
1594
944
# object_path - property
945
@dbus_service_property(_interface, signature=u"o", access=u"read")
946
def object_path_dbus_property(self):
1595
# ObjectPath - property
1596
@dbus_service_property(_interface, signature="o", access="read")
1597
def ObjectPath_dbus_property(self):
947
1598
return self.dbus_object_path # is already a dbus.ObjectPath
948
1599
949
# secret = property
950
@dbus_service_property(_interface, signature=u"ay",
951
access=u"write", byte_arrays=True)
952
def secret_dbus_property(self, value):
1600
# Secret = property
1601
@dbus_service_property(_interface, signature="ay",
1602
access="write", byte_arrays=True)
1603
def Secret_dbus_property(self, value):
953
1604
self.secret = str(value)
954
1605
955
1606
del _interface
956
1607
957
1608
1609
class ProxyClient(object):
1610
def __init__(self, child_pipe, fpr, address):
1611
self._pipe = child_pipe
1612
self._pipe.send(('init', fpr, address))
1613
if not self._pipe.recv():
1614
raise KeyError()
1615
1616
def __getattribute__(self, name):
1617
if name == '_pipe':
1618
return super(ProxyClient, self).__getattribute__(name)
1619
self._pipe.send(('getattr', name))
1620
data = self._pipe.recv()
1621
if data[0] == 'data':
1622
return data[1]
1623
if data[0] == 'function':
1624
def func(*args, **kwargs):
1625
self._pipe.send(('funcall', name, args, kwargs))
1626
return self._pipe.recv()[1]
1627
return func
1628
1629
def __setattr__(self, name, value):
1630
if name == '_pipe':
1631
return super(ProxyClient, self).__setattr__(name, value)
1632
self._pipe.send(('setattr', name, value))
1633
1634
958
1635
class ClientHandler(socketserver.BaseRequestHandler, object):
959
1636
"""A class to handle client connections.
960
1637
962
1639
Note: This will run in its own forked process."""
963
1640
964
1641
def handle(self):
965
logger.info(u"TCP connection from: %s",
966
unicode(self.client_address))
967
logger.debug(u"IPC Pipe FD: %d", self.server.pipe[1])
968
# Open IPC pipe to parent process
969
with closing(os.fdopen(self.server.pipe[1], u"w", 1)) as ipc:
1642
with contextlib.closing(self.server.child_pipe) as child_pipe:
1643
logger.info("TCP connection from: %s",
1644
unicode(self.client_address))
1645
logger.debug("Pipe FD: %d",
1646
self.server.child_pipe.fileno())
1647
970
1648
session = (gnutls.connection
971
1649
.ClientSession(self.request,
972
1650
gnutls.connection
973
1651
.X509Credentials()))
974
1652
975
line = self.request.makefile().readline()
976
logger.debug(u"Protocol version: %r", line)
977
try:
978
if int(line.strip().split()[0]) > 1:
979
raise RuntimeError
980
except (ValueError, IndexError, RuntimeError), error:
981
logger.error(u"Unknown protocol version: %s", error)
982
return
983
984
1653
# Note: gnutls.connection.X509Credentials is really a
985
1654
# generic GnuTLS certificate credentials object so long as
986
1655
# no X.509 keys are added to it. Therefore, we can use it
987
1656
# here despite using OpenPGP certificates.
988
1657
989
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
990
# u"+AES-256-CBC", u"+SHA1",
991
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
992
# u"+DHE-DSS"))
1658
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1659
# "+AES-256-CBC", "+SHA1",
1660
# "+COMP-NULL", "+CTYPE-OPENPGP",
1661
# "+DHE-DSS"))
993
1662
# Use a fallback default, since this MUST be set.
994
1663
priority = self.server.gnutls_priority
995
1664
if priority is None:
996
priority = u"NORMAL"
1665
priority = "NORMAL"
997
1666
(gnutls.library.functions
998
1667
.gnutls_priority_set_direct(session._c_object,
999
1668
priority, None))
1000
1669
1670
# Start communication using the Mandos protocol
1671
# Get protocol number
1672
line = self.request.makefile().readline()
1673
logger.debug("Protocol version: %r", line)
1674
try:
1675
if int(line.strip().split()[0]) > 1:
1676
raise RuntimeError
1677
except (ValueError, IndexError, RuntimeError) as error:
1678
logger.error("Unknown protocol version: %s", error)
1679
return
1680
1681
# Start GnuTLS connection
1001
1682
try:
1002
1683
session.handshake()
1003
except gnutls.errors.GNUTLSError, error:
1004
logger.warning(u"Handshake failed: %s", error)
1684
except gnutls.errors.GNUTLSError as error:
1685
logger.warning("Handshake failed: %s", error)
1005
1686
# Do not run session.bye() here: the session is not
1006
1687
# established. Just abandon the request.
1007
1688
return
1008
logger.debug(u"Handshake succeeded")
1689
logger.debug("Handshake succeeded")
1690
1691
approval_required = False
1009
1692
try:
1010
fpr = self.fingerprint(self.peer_certificate(session))
1011
except (TypeError, gnutls.errors.GNUTLSError), error:
1012
logger.warning(u"Bad certificate: %s", error)
1013
session.bye()
1014
return
1015
logger.debug(u"Fingerprint: %s", fpr)
1693
try:
1694
fpr = self.fingerprint(self.peer_certificate
1695
(session))
1696
except (TypeError,
1697
gnutls.errors.GNUTLSError) as error:
1698
logger.warning("Bad certificate: %s", error)
1699
return
1700
logger.debug("Fingerprint: %s", fpr)
1701
1702
try:
1703
client = ProxyClient(child_pipe, fpr,
1704
self.client_address)
1705
except KeyError:
1706
return
1707
1708
if client.approval_delay:
1709
delay = client.approval_delay
1710
client.approvals_pending += 1
1711
approval_required = True
1712
1713
while True:
1714
if not client.enabled:
1715
logger.info("Client %s is disabled",
1716
client.name)
1717
if self.server.use_dbus:
1718
# Emit D-Bus signal
1719
client.Rejected("Disabled")
1720
return
1721
1722
if client.approved or not client.approval_delay:
1723
#We are approved or approval is disabled
1724
break
1725
elif client.approved is None:
1726
logger.info("Client %s needs approval",
1727
client.name)
1728
if self.server.use_dbus:
1729
# Emit D-Bus signal
1730
client.NeedApproval(
1731
client.approval_delay_milliseconds(),
1732
client.approved_by_default)
1733
else:
1734
logger.warning("Client %s was not approved",
1735
client.name)
1736
if self.server.use_dbus:
1737
# Emit D-Bus signal
1738
client.Rejected("Denied")
1739
return
1740
1741
#wait until timeout or approved
1742
time = datetime.datetime.now()
1743
client.changedstate.acquire()
1744
client.changedstate.wait(
1745
float(timedelta_to_milliseconds(delay)
1746
/ 1000))
1747
client.changedstate.release()
1748
time2 = datetime.datetime.now()
1749
if (time2 - time) >= delay:
1750
if not client.approved_by_default:
1751
logger.warning("Client %s timed out while"
1752
" waiting for approval",
1753
client.name)
1754
if self.server.use_dbus:
1755
# Emit D-Bus signal
1756
client.Rejected("Approval timed out")
1757
return
1758
else:
1759
break
1760
else:
1761
delay -= time2 - time
1762
1763
sent_size = 0
1764
while sent_size < len(client.secret):
1765
try:
1766
sent = session.send(client.secret[sent_size:])
1767
except gnutls.errors.GNUTLSError as error:
1768
logger.warning("gnutls send failed",
1769
exc_info=error)
1770
return
1771
logger.debug("Sent: %d, remaining: %d",
1772
sent, len(client.secret)
1773
- (sent_size + sent))
1774
sent_size += sent
1775
1776
logger.info("Sending secret to %s", client.name)
1777
# bump the timeout using extended_timeout
1778
client.bump_timeout(client.extended_timeout)
1779
if self.server.use_dbus:
1780
# Emit D-Bus signal
1781
client.GotSecret()
1016
1782
1017
for c in self.server.clients:
1018
if c.fingerprint == fpr:
1019
client = c
1020
break
1021
else:
1022
ipc.write(u"NOTFOUND %s %s\n"
1023
% (fpr, unicode(self.client_address)))
1024
session.bye()
1025
return
1026
# Have to check if client.still_valid(), since it is
1027
# possible that the client timed out while establishing
1028
# the GnuTLS session.
1029
if not client.still_valid():
1030
ipc.write(u"INVALID %s\n" % client.name)
1031
session.bye()
1032
return
1033
ipc.write(u"SENDING %s\n" % client.name)
1034
sent_size = 0
1035
while sent_size < len(client.secret):
1036
sent = session.send(client.secret[sent_size:])
1037
logger.debug(u"Sent: %d, remaining: %d",
1038
sent, len(client.secret)
1039
- (sent_size + sent))
1040
sent_size += sent
1041
session.bye()
1783
finally:
1784
if approval_required:
1785
client.approvals_pending -= 1
1786
try:
1787
session.bye()
1788
except gnutls.errors.GNUTLSError as error:
1789
logger.warning("GnuTLS bye failed",
1790
exc_info=error)
1042
1791
1043
1792
@staticmethod
1044
1793
def peer_certificate(session):
1054
1803
.gnutls_certificate_get_peers
1055
1804
(session._c_object, ctypes.byref(list_size)))
1056
1805
if not bool(cert_list) and list_size.value != 0:
1057
raise gnutls.errors.GNUTLSError(u"error getting peer"
1058
u" certificate")
1806
raise gnutls.errors.GNUTLSError("error getting peer"
1807
" certificate")
1059
1808
if list_size.value == 0:
1060
1809
return None
1061
1810
cert = cert_list[0]
1087
1836
if crtverify.value != 0:
1088
1837
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1089
1838
raise (gnutls.errors.CertificateSecurityError
1090
(u"Verify failed"))
1839
("Verify failed"))
1091
1840
# New buffer for the fingerprint
1092
1841
buf = ctypes.create_string_buffer(20)
1093
1842
buf_len = ctypes.c_size_t()
1100
1849
# Convert the buffer to a Python bytestring
1101
1850
fpr = ctypes.string_at(buf, buf_len.value)
1102
1851
# Convert the bytestring to hexadecimal notation
1103
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1852
hex_fpr = binascii.hexlify(fpr).upper()
1104
1853
return hex_fpr
1105
1854
1106
1855
1107
class ForkingMixInWithPipe(socketserver.ForkingMixIn, object):
1108
"""Like socketserver.ForkingMixIn, but also pass a pipe."""
1856
class MultiprocessingMixIn(object):
1857
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1858
def sub_process_main(self, request, address):
1859
try:
1860
self.finish_request(request, address)
1861
except Exception:
1862
self.handle_error(request, address)
1863
self.close_request(request)
1864
1865
def process_request(self, request, address):
1866
"""Start a new process to process the request."""
1867
proc = multiprocessing.Process(target = self.sub_process_main,
1868
args = (request, address))
1869
proc.start()
1870
return proc
1871
1872
1873
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1874
""" adds a pipe to the MixIn """
1109
1875
def process_request(self, request, client_address):
1110
1876
"""Overrides and wraps the original process_request().
1111
1877
1112
1878
This function creates a new pipe in self.pipe
1113
1879
"""
1114
self.pipe = os.pipe()
1115
super(ForkingMixInWithPipe,
1116
self).process_request(request, client_address)
1117
os.close(self.pipe[1]) # close write end
1118
self.add_pipe(self.pipe[0])
1119
def add_pipe(self, pipe):
1880
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1881
1882
proc = MultiprocessingMixIn.process_request(self, request,
1883
client_address)
1884
self.child_pipe.close()
1885
self.add_pipe(parent_pipe, proc)
1886
1887
def add_pipe(self, parent_pipe, proc):
1120
1888
"""Dummy function; override as necessary"""
1121
os.close(pipe)
1122
1123
1124
class IPv6_TCPServer(ForkingMixInWithPipe,
1889
raise NotImplementedError
1890
1891
1892
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1125
1893
socketserver.TCPServer, object):
1126
1894
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1127
1895
1131
1899
use_ipv6: Boolean; to use IPv6 or not
1132
1900
"""
1133
1901
def __init__(self, server_address, RequestHandlerClass,
1134
interface=None, use_ipv6=True):
1902
interface=None, use_ipv6=True, socketfd=None):
1903
"""If socketfd is set, use that file descriptor instead of
1904
creating a new one with socket.socket().
1905
"""
1135
1906
self.interface = interface
1136
1907
if use_ipv6:
1137
1908
self.address_family = socket.AF_INET6
1909
if socketfd is not None:
1910
# Save the file descriptor
1911
self.socketfd = socketfd
1912
# Save the original socket.socket() function
1913
self.socket_socket = socket.socket
1914
# To implement --socket, we monkey patch socket.socket.
1915
#
1916
# (When socketserver.TCPServer is a new-style class, we
1917
# could make self.socket into a property instead of monkey
1918
# patching socket.socket.)
1919
#
1920
# Create a one-time-only replacement for socket.socket()
1921
@functools.wraps(socket.socket)
1922
def socket_wrapper(*args, **kwargs):
1923
# Restore original function so subsequent calls are
1924
# not affected.
1925
socket.socket = self.socket_socket
1926
del self.socket_socket
1927
# This time only, return a new socket object from the
1928
# saved file descriptor.
1929
return socket.fromfd(self.socketfd, *args, **kwargs)
1930
# Replace socket.socket() function with wrapper
1931
socket.socket = socket_wrapper
1932
# The socketserver.TCPServer.__init__ will call
1933
# socket.socket(), which might be our replacement,
1934
# socket_wrapper(), if socketfd was set.
1138
1935
socketserver.TCPServer.__init__(self, server_address,
1139
1936
RequestHandlerClass)
1937
1140
1938
def server_bind(self):
1141
1939
"""This overrides the normal server_bind() function
1142
1940
to bind to an interface if one was specified, and also NOT to
1143
1941
bind to an address or port if they were not specified."""
1144
1942
if self.interface is not None:
1145
1943
if SO_BINDTODEVICE is None:
1146
logger.error(u"SO_BINDTODEVICE does not exist;"
1147
u" cannot bind to interface %s",
1944
logger.error("SO_BINDTODEVICE does not exist;"
1945
" cannot bind to interface %s",
1148
1946
self.interface)
1149
1947
else:
1150
1948
try:
1151
1949
self.socket.setsockopt(socket.SOL_SOCKET,
1152
1950
SO_BINDTODEVICE,
1153
str(self.interface
1154
+ u'\0'))
1155
except socket.error, error:
1156
if error[0] == errno.EPERM:
1157
logger.error(u"No permission to"
1158
u" bind to interface %s",
1159
self.interface)
1160
elif error[0] == errno.ENOPROTOOPT:
1161
logger.error(u"SO_BINDTODEVICE not available;"
1162
u" cannot bind to interface %s",
1163
self.interface)
1951
str(self.interface + '\0'))
1952
except socket.error as error:
1953
if error.errno == errno.EPERM:
1954
logger.error("No permission to bind to"
1955
" interface %s", self.interface)
1956
elif error.errno == errno.ENOPROTOOPT:
1957
logger.error("SO_BINDTODEVICE not available;"
1958
" cannot bind to interface %s",
1959
self.interface)
1960
elif error.errno == errno.ENODEV:
1961
logger.error("Interface %s does not exist,"
1962
" cannot bind", self.interface)
1164
1963
else:
1165
1964
raise
1166
1965
# Only bind(2) the socket if we really need to.
1167
1966
if self.server_address[0] or self.server_address[1]:
1168
1967
if not self.server_address[0]:
1169
1968
if self.address_family == socket.AF_INET6:
1170
any_address = u"::" # in6addr_any
1969
any_address = "::" # in6addr_any
1171
1970
else:
1172
1971
any_address = socket.INADDR_ANY
1173
1972
self.server_address = (any_address,
1196
1995
"""
1197
1996
def __init__(self, server_address, RequestHandlerClass,
1198
1997
interface=None, use_ipv6=True, clients=None,
1199
gnutls_priority=None, use_dbus=True):
1998
gnutls_priority=None, use_dbus=True, socketfd=None):
1200
1999
self.enabled = False
1201
2000
self.clients = clients
1202
2001
if self.clients is None:
1203
self.clients = set()
2002
self.clients = {}
1204
2003
self.use_dbus = use_dbus
1205
2004
self.gnutls_priority = gnutls_priority
1206
2005
IPv6_TCPServer.__init__(self, server_address,
1207
2006
RequestHandlerClass,
1208
2007
interface = interface,
1209
use_ipv6 = use_ipv6)
2008
use_ipv6 = use_ipv6,
2009
socketfd = socketfd)
1210
2010
def server_activate(self):
1211
2011
if self.enabled:
1212
2012
return socketserver.TCPServer.server_activate(self)
2013
1213
2014
def enable(self):
1214
2015
self.enabled = True
1215
def add_pipe(self, pipe):
2016
2017
def add_pipe(self, parent_pipe, proc):
1216
2018
# Call "handle_ipc" for both data and EOF events
1217
gobject.io_add_watch(pipe, gobject.IO_IN | gobject.IO_HUP,
1218
self.handle_ipc)
1219
def handle_ipc(self, source, condition, file_objects={}):
1220
condition_names = {
1221
gobject.IO_IN: u"IN", # There is data to read.
1222
gobject.IO_OUT: u"OUT", # Data can be written (without
1223
# blocking).
1224
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1225
gobject.IO_ERR: u"ERR", # Error condition.
1226
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1227
# broken, usually for pipes and
1228
# sockets).
1229
}
1230
conditions_string = ' | '.join(name
1231
for cond, name in
1232
condition_names.iteritems()
1233
if cond & condition)
1234
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1235
conditions_string)
1236
1237
# Turn the pipe file descriptor into a Python file object
1238
if source not in file_objects:
1239
file_objects[source] = os.fdopen(source, u"r", 1)
1240
1241
# Read a line from the file object
1242
cmdline = file_objects[source].readline()
1243
if not cmdline: # Empty line means end of file
1244
# close the IPC pipe
1245
file_objects[source].close()
1246
del file_objects[source]
1247
1248
# Stop calling this function
1249
return False
1250
1251
logger.debug(u"IPC command: %r", cmdline)
1252
1253
# Parse and act on command
1254
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1255
1256
if cmd == u"NOTFOUND":
1257
logger.warning(u"Client not found for fingerprint: %s",
1258
args)
1259
if self.use_dbus:
1260
# Emit D-Bus signal
1261
mandos_dbus_service.ClientNotFound(args)
1262
elif cmd == u"INVALID":
1263
for client in self.clients:
1264
if client.name == args:
1265
logger.warning(u"Client %s is invalid", args)
1266
if self.use_dbus:
1267
# Emit D-Bus signal
1268
client.Rejected()
1269
break
1270
else:
1271
logger.error(u"Unknown client %s is invalid", args)
1272
elif cmd == u"SENDING":
1273
for client in self.clients:
1274
if client.name == args:
1275
logger.info(u"Sending secret to %s", client.name)
1276
client.checked_ok()
1277
if self.use_dbus:
1278
# Emit D-Bus signal
1279
client.ReceivedSecret()
1280
break
1281
else:
1282
logger.error(u"Sending secret to unknown client %s",
1283
args)
1284
else:
1285
logger.error(u"Unknown IPC command: %r", cmdline)
1286
1287
# Keep calling this function
2019
gobject.io_add_watch(parent_pipe.fileno(),
2020
gobject.IO_IN | gobject.IO_HUP,
2021
functools.partial(self.handle_ipc,
2022
parent_pipe =
2023
parent_pipe,
2024
proc = proc))
2025
2026
def handle_ipc(self, source, condition, parent_pipe=None,
2027
proc = None, client_object=None):
2028
# error, or the other end of multiprocessing.Pipe has closed
2029
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2030
# Wait for other process to exit
2031
proc.join()
2032
return False
2033
2034
# Read a request from the child
2035
request = parent_pipe.recv()
2036
command = request[0]
2037
2038
if command == 'init':
2039
fpr = request[1]
2040
address = request[2]
2041
2042
for c in self.clients.itervalues():
2043
if c.fingerprint == fpr:
2044
client = c
2045
break
2046
else:
2047
logger.info("Client not found for fingerprint: %s, ad"
2048
"dress: %s", fpr, address)
2049
if self.use_dbus:
2050
# Emit D-Bus signal
2051
mandos_dbus_service.ClientNotFound(fpr,
2052
address[0])
2053
parent_pipe.send(False)
2054
return False
2055
2056
gobject.io_add_watch(parent_pipe.fileno(),
2057
gobject.IO_IN | gobject.IO_HUP,
2058
functools.partial(self.handle_ipc,
2059
parent_pipe =
2060
parent_pipe,
2061
proc = proc,
2062
client_object =
2063
client))
2064
parent_pipe.send(True)
2065
# remove the old hook in favor of the new above hook on
2066
# same fileno
2067
return False
2068
if command == 'funcall':
2069
funcname = request[1]
2070
args = request[2]
2071
kwargs = request[3]
2072
2073
parent_pipe.send(('data', getattr(client_object,
2074
funcname)(*args,
2075
**kwargs)))
2076
2077
if command == 'getattr':
2078
attrname = request[1]
2079
if callable(client_object.__getattribute__(attrname)):
2080
parent_pipe.send(('function',))
2081
else:
2082
parent_pipe.send(('data', client_object
2083
.__getattribute__(attrname)))
2084
2085
if command == 'setattr':
2086
attrname = request[1]
2087
value = request[2]
2088
setattr(client_object, attrname, value)
2089
1288
2090
return True
1289
2091
1290
2092
1291
2093
def string_to_delta(interval):
1292
2094
"""Parse a string and return a datetime.timedelta
1293
2095
1294
>>> string_to_delta(u'7d')
2096
>>> string_to_delta('7d')
1295
2097
datetime.timedelta(7)
1296
>>> string_to_delta(u'60s')
2098
>>> string_to_delta('60s')
1297
2099
datetime.timedelta(0, 60)
1298
>>> string_to_delta(u'60m')
2100
>>> string_to_delta('60m')
1299
2101
datetime.timedelta(0, 3600)
1300
>>> string_to_delta(u'24h')
2102
>>> string_to_delta('24h')
1301
2103
datetime.timedelta(1)
1302
>>> string_to_delta(u'1w')
2104
>>> string_to_delta('1w')
1303
2105
datetime.timedelta(7)
1304
>>> string_to_delta(u'5m 30s')
2106
>>> string_to_delta('5m 30s')
1305
2107
datetime.timedelta(0, 330)
1306
2108
"""
1307
2109
timevalue = datetime.timedelta(0)
1309
2111
try:
1310
2112
suffix = unicode(s[-1])
1311
2113
value = int(s[:-1])
1312
if suffix == u"d":
2114
if suffix == "d":
1313
2115
delta = datetime.timedelta(value)
1314
elif suffix == u"s":
2116
elif suffix == "s":
1315
2117
delta = datetime.timedelta(0, value)
1316
elif suffix == u"m":
2118
elif suffix == "m":
1317
2119
delta = datetime.timedelta(0, 0, 0, 0, value)
1318
elif suffix == u"h":
2120
elif suffix == "h":
1319
2121
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1320
elif suffix == u"w":
2122
elif suffix == "w":
1321
2123
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1322
2124
else:
1323
raise ValueError
1324
except (ValueError, IndexError):
1325
raise ValueError
2125
raise ValueError("Unknown suffix {0!r}"
2126
.format(suffix))
2127
except (ValueError, IndexError) as e:
2128
raise ValueError(*(e.args))
1326
2129
timevalue += delta
1327
2130
return timevalue
1328
2131
1329
2132
1330
def if_nametoindex(interface):
1331
"""Call the C function if_nametoindex(), or equivalent
1332
1333
Note: This function cannot accept a unicode string."""
1334
global if_nametoindex
1335
try:
1336
if_nametoindex = (ctypes.cdll.LoadLibrary
1337
(ctypes.util.find_library(u"c"))
1338
.if_nametoindex)
1339
except (OSError, AttributeError):
1340
logger.warning(u"Doing if_nametoindex the hard way")
1341
def if_nametoindex(interface):
1342
"Get an interface index the hard way, i.e. using fcntl()"
1343
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1344
with closing(socket.socket()) as s:
1345
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1346
struct.pack(str(u"16s16x"),
1347
interface))
1348
interface_index = struct.unpack(str(u"I"),
1349
ifreq[16:20])[0]
1350
return interface_index
1351
return if_nametoindex(interface)
1352
1353
1354
2133
def daemon(nochdir = False, noclose = False):
1355
2134
"""See daemon(3). Standard BSD Unix function.
1356
2135
1359
2138
sys.exit()
1360
2139
os.setsid()
1361
2140
if not nochdir:
1362
os.chdir(u"/")
2141
os.chdir("/")
1363
2142
if os.fork():
1364
2143
sys.exit()
1365
2144
if not noclose:
1366
2145
# Close all standard open file descriptors
1367
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2146
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1368
2147
if not stat.S_ISCHR(os.fstat(null).st_mode):
1369
2148
raise OSError(errno.ENODEV,
1370
u"/dev/null not a character device")
2149
"{0} not a character device"
2150
.format(os.devnull))
1371
2151
os.dup2(null, sys.stdin.fileno())
1372
2152
os.dup2(null, sys.stdout.fileno())
1373
2153
os.dup2(null, sys.stderr.fileno())
1380
2160
##################################################################
1381
2161
# Parsing of options, both command line and config file
1382
2162
1383
parser = optparse.OptionParser(version = "%%prog %s" % version)
1384
parser.add_option("-i", u"--interface", type=u"string",
1385
metavar="IF", help=u"Bind to interface IF")
1386
parser.add_option("-a", u"--address", type=u"string",
1387
help=u"Address to listen for requests on")
1388
parser.add_option("-p", u"--port", type=u"int",
1389
help=u"Port number to receive requests on")
1390
parser.add_option("--check", action=u"store_true",
1391
help=u"Run self-test")
1392
parser.add_option("--debug", action=u"store_true",
1393
help=u"Debug mode; run in foreground and log to"
1394
u" terminal")
1395
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1396
u" priority string (see GnuTLS documentation)")
1397
parser.add_option("--servicename", type=u"string",
1398
metavar=u"NAME", help=u"Zeroconf service name")
1399
parser.add_option("--configdir", type=u"string",
1400
default=u"/etc/mandos", metavar=u"DIR",
1401
help=u"Directory to search for configuration"
1402
u" files")
1403
parser.add_option("--no-dbus", action=u"store_false",
1404
dest=u"use_dbus", help=u"Do not provide D-Bus"
1405
u" system bus interface")
1406
parser.add_option("--no-ipv6", action=u"store_false",
1407
dest=u"use_ipv6", help=u"Do not use IPv6")
1408
options = parser.parse_args()[0]
2163
parser = argparse.ArgumentParser()
2164
parser.add_argument("-v", "--version", action="version",
2165
version = "%(prog)s {0}".format(version),
2166
help="show version number and exit")
2167
parser.add_argument("-i", "--interface", metavar="IF",
2168
help="Bind to interface IF")
2169
parser.add_argument("-a", "--address",
2170
help="Address to listen for requests on")
2171
parser.add_argument("-p", "--port", type=int,
2172
help="Port number to receive requests on")
2173
parser.add_argument("--check", action="store_true",
2174
help="Run self-test")
2175
parser.add_argument("--debug", action="store_true",
2176
help="Debug mode; run in foreground and log"
2177
" to terminal")
2178
parser.add_argument("--debuglevel", metavar="LEVEL",
2179
help="Debug level for stdout output")
2180
parser.add_argument("--priority", help="GnuTLS"
2181
" priority string (see GnuTLS documentation)")
2182
parser.add_argument("--servicename",
2183
metavar="NAME", help="Zeroconf service name")
2184
parser.add_argument("--configdir",
2185
default="/etc/mandos", metavar="DIR",
2186
help="Directory to search for configuration"
2187
" files")
2188
parser.add_argument("--no-dbus", action="store_false",
2189
dest="use_dbus", help="Do not provide D-Bus"
2190
" system bus interface")
2191
parser.add_argument("--no-ipv6", action="store_false",
2192
dest="use_ipv6", help="Do not use IPv6")
2193
parser.add_argument("--no-restore", action="store_false",
2194
dest="restore", help="Do not restore stored"
2195
" state")
2196
parser.add_argument("--socket", type=int,
2197
help="Specify a file descriptor to a network"
2198
" socket to use instead of creating one")
2199
parser.add_argument("--statedir", metavar="DIR",
2200
help="Directory to save/restore state in")
2201
parser.add_argument("--foreground", action="store_true",
2202
help="Run in foreground")
2203
2204
options = parser.parse_args()
1409
2205
1410
2206
if options.check:
1411
2207
import doctest
1413
2209
sys.exit()
1414
2210
1415
2211
# Default values for config file for server-global settings
1416
server_defaults = { u"interface": u"",
1417
u"address": u"",
1418
u"port": u"",
1419
u"debug": u"False",
1420
u"priority":
1421
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1422
u"servicename": u"Mandos",
1423
u"use_dbus": u"True",
1424
u"use_ipv6": u"True",
2212
server_defaults = { "interface": "",
2213
"address": "",
2214
"port": "",
2215
"debug": "False",
2216
"priority":
2217
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2218
"servicename": "Mandos",
2219
"use_dbus": "True",
2220
"use_ipv6": "True",
2221
"debuglevel": "",
2222
"restore": "True",
2223
"socket": "",
2224
"statedir": "/var/lib/mandos",
2225
"foreground": "False",
1425
2226
}
1426
2227
1427
2228
# Parse config file for server-global settings
1428
2229
server_config = configparser.SafeConfigParser(server_defaults)
1429
2230
del server_defaults
1430
2231
server_config.read(os.path.join(options.configdir,
1431
u"mandos.conf"))
2232
"mandos.conf"))
1432
2233
# Convert the SafeConfigParser object to a dict
1433
2234
server_settings = server_config.defaults()
1434
2235
# Use the appropriate methods on the non-string config options
1435
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1436
server_settings[option] = server_config.getboolean(u"DEFAULT",
2236
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2237
server_settings[option] = server_config.getboolean("DEFAULT",
1437
2238
option)
1438
2239
if server_settings["port"]:
1439
server_settings["port"] = server_config.getint(u"DEFAULT",
1440
u"port")
2240
server_settings["port"] = server_config.getint("DEFAULT",
2241
"port")
2242
if server_settings["socket"]:
2243
server_settings["socket"] = server_config.getint("DEFAULT",
2244
"socket")
2245
# Later, stdin will, and stdout and stderr might, be dup'ed
2246
# over with an opened os.devnull. But we don't want this to
2247
# happen with a supplied network socket.
2248
if 0 <= server_settings["socket"] <= 2:
2249
server_settings["socket"] = os.dup(server_settings
2250
["socket"])
1441
2251
del server_config
1442
2252
1443
2253
# Override the settings from the config file with command line
1444
2254
# options, if set.
1445
for option in (u"interface", u"address", u"port", u"debug",
1446
u"priority", u"servicename", u"configdir",
1447
u"use_dbus", u"use_ipv6"):
2255
for option in ("interface", "address", "port", "debug",
2256
"priority", "servicename", "configdir",
2257
"use_dbus", "use_ipv6", "debuglevel", "restore",
2258
"statedir", "socket", "foreground"):
1448
2259
value = getattr(options, option)
1449
2260
if value is not None:
1450
2261
server_settings[option] = value
1453
2264
for option in server_settings.keys():
1454
2265
if type(server_settings[option]) is str:
1455
2266
server_settings[option] = unicode(server_settings[option])
2267
# Debug implies foreground
2268
if server_settings["debug"]:
2269
server_settings["foreground"] = True
1456
2270
# Now we have our good server settings in "server_settings"
1457
2271
1458
2272
##################################################################
1459
2273
1460
2274
# For convenience
1461
debug = server_settings[u"debug"]
1462
use_dbus = server_settings[u"use_dbus"]
1463
use_ipv6 = server_settings[u"use_ipv6"]
1464
1465
if not debug:
1466
syslogger.setLevel(logging.WARNING)
1467
console.setLevel(logging.WARNING)
1468
1469
if server_settings[u"servicename"] != u"Mandos":
2275
debug = server_settings["debug"]
2276
debuglevel = server_settings["debuglevel"]
2277
use_dbus = server_settings["use_dbus"]
2278
use_ipv6 = server_settings["use_ipv6"]
2279
stored_state_path = os.path.join(server_settings["statedir"],
2280
stored_state_file)
2281
foreground = server_settings["foreground"]
2282
2283
if debug:
2284
initlogger(debug, logging.DEBUG)
2285
else:
2286
if not debuglevel:
2287
initlogger(debug)
2288
else:
2289
level = getattr(logging, debuglevel.upper())
2290
initlogger(debug, level)
2291
2292
if server_settings["servicename"] != "Mandos":
1470
2293
syslogger.setFormatter(logging.Formatter
1471
(u'Mandos (%s) [%%(process)d]:'
1472
u' %%(levelname)s: %%(message)s'
1473
% server_settings[u"servicename"]))
2294
('Mandos ({0}) [%(process)d]:'
2295
' %(levelname)s: %(message)s'
2296
.format(server_settings
2297
["servicename"])))
1474
2298
1475
2299
# Parse config file with clients
1476
client_defaults = { u"timeout": u"1h",
1477
u"interval": u"5m",
1478
u"checker": u"fping -q -- %%(host)s",
1479
u"host": u"",
1480
}
1481
client_config = configparser.SafeConfigParser(client_defaults)
1482
client_config.read(os.path.join(server_settings[u"configdir"],
1483
u"clients.conf"))
2300
client_config = configparser.SafeConfigParser(Client
2301
.client_defaults)
2302
client_config.read(os.path.join(server_settings["configdir"],
2303
"clients.conf"))
1484
2304
1485
2305
global mandos_dbus_service
1486
2306
mandos_dbus_service = None
1487
2307
1488
tcp_server = MandosServer((server_settings[u"address"],
1489
server_settings[u"port"]),
2308
tcp_server = MandosServer((server_settings["address"],
2309
server_settings["port"]),
1490
2310
ClientHandler,
1491
interface=server_settings[u"interface"],
2311
interface=(server_settings["interface"]
2312
or None),
1492
2313
use_ipv6=use_ipv6,
1493
2314
gnutls_priority=
1494
server_settings[u"priority"],
1495
use_dbus=use_dbus)
1496
pidfilename = u"/var/run/mandos.pid"
1497
try:
1498
pidfile = open(pidfilename, u"w")
1499
except IOError:
1500
logger.error(u"Could not open file %r", pidfilename)
2315
server_settings["priority"],
2316
use_dbus=use_dbus,
2317
socketfd=(server_settings["socket"]
2318
or None))
2319
if not foreground:
2320
pidfilename = "/var/run/mandos.pid"
2321
pidfile = None
2322
try:
2323
pidfile = open(pidfilename, "w")
2324
except IOError as e:
2325
logger.error("Could not open file %r", pidfilename,
2326
exc_info=e)
1501
2327
1502
try:
1503
uid = pwd.getpwnam(u"_mandos").pw_uid
1504
gid = pwd.getpwnam(u"_mandos").pw_gid
1505
except KeyError:
2328
for name in ("_mandos", "mandos", "nobody"):
1506
2329
try:
1507
uid = pwd.getpwnam(u"mandos").pw_uid
1508
gid = pwd.getpwnam(u"mandos").pw_gid
2330
uid = pwd.getpwnam(name).pw_uid
2331
gid = pwd.getpwnam(name).pw_gid
2332
break
1509
2333
except KeyError:
1510
try:
1511
uid = pwd.getpwnam(u"nobody").pw_uid
1512
gid = pwd.getpwnam(u"nobody").pw_gid
1513
except KeyError:
1514
uid = 65534
1515
gid = 65534
2334
continue
2335
else:
2336
uid = 65534
2337
gid = 65534
1516
2338
try:
1517
2339
os.setgid(gid)
1518
2340
os.setuid(uid)
1519
except OSError, error:
1520
if error[0] != errno.EPERM:
2341
except OSError as error:
2342
if error.errno != errno.EPERM:
1521
2343
raise error
1522
2344
1523
# Enable all possible GnuTLS debugging
1524
2345
if debug:
2346
# Enable all possible GnuTLS debugging
2347
1525
2348
# "Use a log level over 10 to enable all debugging options."
1526
2349
# - GnuTLS manual
1527
2350
gnutls.library.functions.gnutls_global_set_log_level(11)
1528
2351
1529
2352
@gnutls.library.types.gnutls_log_func
1530
2353
def debug_gnutls(level, string):
1531
logger.debug(u"GnuTLS: %s", string[:-1])
2354
logger.debug("GnuTLS: %s", string[:-1])
1532
2355
1533
2356
(gnutls.library.functions
1534
2357
.gnutls_global_set_log_function(debug_gnutls))
2358
2359
# Redirect stdin so all checkers get /dev/null
2360
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2361
os.dup2(null, sys.stdin.fileno())
2362
if null > 2:
2363
os.close(null)
2364
2365
# Need to fork before connecting to D-Bus
2366
if not foreground:
2367
# Close all input and output, do double fork, etc.
2368
daemon()
2369
2370
# multiprocessing will use threads, so before we use gobject we
2371
# need to inform gobject that threads will be used.
2372
gobject.threads_init()
1535
2373
1536
2374
global main_loop
1537
2375
# From the Avahi example code
1538
DBusGMainLoop(set_as_default=True )
2376
DBusGMainLoop(set_as_default=True)
1539
2377
main_loop = gobject.MainLoop()
1540
2378
bus = dbus.SystemBus()
1541
2379
# End of Avahi example code
1542
2380
if use_dbus:
1543
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
2381
try:
2382
bus_name = dbus.service.BusName("se.recompile.Mandos",
2383
bus, do_not_queue=True)
2384
old_bus_name = (dbus.service.BusName
2385
("se.bsnet.fukt.Mandos", bus,
2386
do_not_queue=True))
2387
except dbus.exceptions.NameExistsException as e:
2388
logger.error("Disabling D-Bus:", exc_info=e)
2389
use_dbus = False
2390
server_settings["use_dbus"] = False
2391
tcp_server.use_dbus = False
1544
2392
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1545
service = AvahiService(name = server_settings[u"servicename"],
1546
servicetype = u"_mandos._tcp",
1547
protocol = protocol, bus = bus)
2393
service = AvahiServiceToSyslog(name =
2394
server_settings["servicename"],
2395
servicetype = "_mandos._tcp",
2396
protocol = protocol, bus = bus)
1548
2397
if server_settings["interface"]:
1549
2398
service.interface = (if_nametoindex
1550
(str(server_settings[u"interface"])))
2399
(str(server_settings["interface"])))
2400
2401
global multiprocessing_manager
2402
multiprocessing_manager = multiprocessing.Manager()
1551
2403
1552
2404
client_class = Client
1553
2405
if use_dbus:
1554
2406
client_class = functools.partial(ClientDBus, bus = bus)
1555
tcp_server.clients.update(set(
1556
client_class(name = section,
1557
config= dict(client_config.items(section)))
1558
for section in client_config.sections()))
2407
2408
client_settings = Client.config_parser(client_config)
2409
old_client_settings = {}
2410
clients_data = {}
2411
2412
# Get client data and settings from last running state.
2413
if server_settings["restore"]:
2414
try:
2415
with open(stored_state_path, "rb") as stored_state:
2416
clients_data, old_client_settings = (pickle.load
2417
(stored_state))
2418
os.remove(stored_state_path)
2419
except IOError as e:
2420
if e.errno == errno.ENOENT:
2421
logger.warning("Could not load persistent state: {0}"
2422
.format(os.strerror(e.errno)))
2423
else:
2424
logger.critical("Could not load persistent state:",
2425
exc_info=e)
2426
raise
2427
except EOFError as e:
2428
logger.warning("Could not load persistent state: "
2429
"EOFError:", exc_info=e)
2430
2431
with PGPEngine() as pgp:
2432
for client_name, client in clients_data.iteritems():
2433
# Decide which value to use after restoring saved state.
2434
# We have three different values: Old config file,
2435
# new config file, and saved state.
2436
# New config value takes precedence if it differs from old
2437
# config value, otherwise use saved state.
2438
for name, value in client_settings[client_name].items():
2439
try:
2440
# For each value in new config, check if it
2441
# differs from the old config value (Except for
2442
# the "secret" attribute)
2443
if (name != "secret" and
2444
value != old_client_settings[client_name]
2445
[name]):
2446
client[name] = value
2447
except KeyError:
2448
pass
2449
2450
# Clients who has passed its expire date can still be
2451
# enabled if its last checker was successful. Clients
2452
# whose checker succeeded before we stored its state is
2453
# assumed to have successfully run all checkers during
2454
# downtime.
2455
if client["enabled"]:
2456
if datetime.datetime.utcnow() >= client["expires"]:
2457
if not client["last_checked_ok"]:
2458
logger.warning(
2459
"disabling client {0} - Client never "
2460
"performed a successful checker"
2461
.format(client_name))
2462
client["enabled"] = False
2463
elif client["last_checker_status"] != 0:
2464
logger.warning(
2465
"disabling client {0} - Client "
2466
"last checker failed with error code {1}"
2467
.format(client_name,
2468
client["last_checker_status"]))
2469
client["enabled"] = False
2470
else:
2471
client["expires"] = (datetime.datetime
2472
.utcnow()
2473
+ client["timeout"])
2474
logger.debug("Last checker succeeded,"
2475
" keeping {0} enabled"
2476
.format(client_name))
2477
try:
2478
client["secret"] = (
2479
pgp.decrypt(client["encrypted_secret"],
2480
client_settings[client_name]
2481
["secret"]))
2482
except PGPError:
2483
# If decryption fails, we use secret from new settings
2484
logger.debug("Failed to decrypt {0} old secret"
2485
.format(client_name))
2486
client["secret"] = (
2487
client_settings[client_name]["secret"])
2488
2489
# Add/remove clients based on new changes made to config
2490
for client_name in (set(old_client_settings)
2491
- set(client_settings)):
2492
del clients_data[client_name]
2493
for client_name in (set(client_settings)
2494
- set(old_client_settings)):
2495
clients_data[client_name] = client_settings[client_name]
2496
2497
# Create all client objects
2498
for client_name, client in clients_data.iteritems():
2499
tcp_server.clients[client_name] = client_class(
2500
name = client_name, settings = client)
2501
1559
2502
if not tcp_server.clients:
1560
logger.warning(u"No clients defined")
1561
1562
if debug:
1563
# Redirect stdin so all checkers get /dev/null
1564
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1565
os.dup2(null, sys.stdin.fileno())
1566
if null > 2:
1567
os.close(null)
1568
else:
1569
# No console logging
1570
logger.removeHandler(console)
1571
# Close all input and output, do double fork, etc.
1572
daemon()
1573
1574
try:
1575
with closing(pidfile):
1576
pid = os.getpid()
1577
pidfile.write(str(pid) + "\n")
2503
logger.warning("No clients defined")
2504
2505
if not foreground:
2506
if pidfile is not None:
2507
try:
2508
with pidfile:
2509
pid = os.getpid()
2510
pidfile.write(str(pid) + "\n".encode("utf-8"))
2511
except IOError:
2512
logger.error("Could not write to file %r with PID %d",
2513
pidfilename, pid)
1578
2514
del pidfile
1579
except IOError:
1580
logger.error(u"Could not write to file %r with PID %d",
1581
pidfilename, pid)
1582
except NameError:
1583
# "pidfile" was never created
1584
pass
1585
del pidfilename
1586
1587
def cleanup():
1588
"Cleanup function; run on exit"
1589
service.cleanup()
1590
1591
while tcp_server.clients:
1592
client = tcp_server.clients.pop()
1593
client.disable_hook = None
1594
client.disable()
1595
1596
atexit.register(cleanup)
1597
1598
if not debug:
1599
signal.signal(signal.SIGINT, signal.SIG_IGN)
2515
del pidfilename
2516
1600
2517
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1601
2518
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1602
2519
1603
2520
if use_dbus:
1604
class MandosDBusService(dbus.service.Object):
2521
@alternate_dbus_interfaces({"se.recompile.Mandos":
2522
"se.bsnet.fukt.Mandos"})
2523
class MandosDBusService(DBusObjectWithProperties):
1605
2524
"""A D-Bus proxy object"""
1606
2525
def __init__(self):
1607
dbus.service.Object.__init__(self, bus, u"/")
1608
_interface = u"se.bsnet.fukt.Mandos"
1609
1610
@dbus.service.signal(_interface, signature=u"oa{sv}")
1611
def ClientAdded(self, objpath, properties):
1612
"D-Bus signal"
1613
pass
1614
1615
@dbus.service.signal(_interface, signature=u"s")
1616
def ClientNotFound(self, fingerprint):
1617
"D-Bus signal"
1618
pass
1619
1620
@dbus.service.signal(_interface, signature=u"os")
2526
dbus.service.Object.__init__(self, bus, "/")
2527
_interface = "se.recompile.Mandos"
2528
2529
@dbus_interface_annotations(_interface)
2530
def _foo(self):
2531
return { "org.freedesktop.DBus.Property"
2532
".EmitsChangedSignal":
2533
"false"}
2534
2535
@dbus.service.signal(_interface, signature="o")
2536
def ClientAdded(self, objpath):
2537
"D-Bus signal"
2538
pass
2539
2540
@dbus.service.signal(_interface, signature="ss")
2541
def ClientNotFound(self, fingerprint, address):
2542
"D-Bus signal"
2543
pass
2544
2545
@dbus.service.signal(_interface, signature="os")
1621
2546
def ClientRemoved(self, objpath, name):
1622
2547
"D-Bus signal"
1623
2548
pass
1624
2549
1625
@dbus.service.method(_interface, out_signature=u"ao")
2550
@dbus.service.method(_interface, out_signature="ao")
1626
2551
def GetAllClients(self):
1627
2552
"D-Bus method"
1628
2553
return dbus.Array(c.dbus_object_path
1629
for c in tcp_server.clients)
2554
for c in
2555
tcp_server.clients.itervalues())
1630
2556
1631
2557
@dbus.service.method(_interface,
1632
out_signature=u"a{oa{sv}}")
2558
out_signature="a{oa{sv}}")
1633
2559
def GetAllClientsWithProperties(self):
1634
2560
"D-Bus method"
1635
2561
return dbus.Dictionary(
1636
((c.dbus_object_path, c.GetAll(u""))
1637
for c in tcp_server.clients),
1638
signature=u"oa{sv}")
2562
((c.dbus_object_path, c.GetAll(""))
2563
for c in tcp_server.clients.itervalues()),
2564
signature="oa{sv}")
1639
2565
1640
@dbus.service.method(_interface, in_signature=u"o")
2566
@dbus.service.method(_interface, in_signature="o")
1641
2567
def RemoveClient(self, object_path):
1642
2568
"D-Bus method"
1643
for c in tcp_server.clients:
2569
for c in tcp_server.clients.itervalues():
1644
2570
if c.dbus_object_path == object_path:
1645
tcp_server.clients.remove(c)
2571
del tcp_server.clients[c.name]
1646
2572
c.remove_from_connection()
1647
2573
# Don't signal anything except ClientRemoved
1648
c.disable(signal=False)
2574
c.disable(quiet=True)
1649
2575
# Emit D-Bus signal
1650
2576
self.ClientRemoved(object_path, c.name)
1651
2577
return
1652
raise KeyError
2578
raise KeyError(object_path)
1653
2579
1654
2580
del _interface
1655
2581
1656
2582
mandos_dbus_service = MandosDBusService()
1657
2583
1658
for client in tcp_server.clients:
2584
def cleanup():
2585
"Cleanup function; run on exit"
2586
service.cleanup()
2587
2588
multiprocessing.active_children()
2589
if not (tcp_server.clients or client_settings):
2590
return
2591
2592
# Store client before exiting. Secrets are encrypted with key
2593
# based on what config file has. If config file is
2594
# removed/edited, old secret will thus be unrecovable.
2595
clients = {}
2596
with PGPEngine() as pgp:
2597
for client in tcp_server.clients.itervalues():
2598
key = client_settings[client.name]["secret"]
2599
client.encrypted_secret = pgp.encrypt(client.secret,
2600
key)
2601
client_dict = {}
2602
2603
# A list of attributes that can not be pickled
2604
# + secret.
2605
exclude = set(("bus", "changedstate", "secret",
2606
"checker"))
2607
for name, typ in (inspect.getmembers
2608
(dbus.service.Object)):
2609
exclude.add(name)
2610
2611
client_dict["encrypted_secret"] = (client
2612
.encrypted_secret)
2613
for attr in client.client_structure:
2614
if attr not in exclude:
2615
client_dict[attr] = getattr(client, attr)
2616
2617
clients[client.name] = client_dict
2618
del client_settings[client.name]["secret"]
2619
2620
try:
2621
with (tempfile.NamedTemporaryFile
2622
(mode='wb', suffix=".pickle", prefix='clients-',
2623
dir=os.path.dirname(stored_state_path),
2624
delete=False)) as stored_state:
2625
pickle.dump((clients, client_settings), stored_state)
2626
tempname=stored_state.name
2627
os.rename(tempname, stored_state_path)
2628
except (IOError, OSError) as e:
2629
if not debug:
2630
try:
2631
os.remove(tempname)
2632
except NameError:
2633
pass
2634
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2635
logger.warning("Could not save persistent state: {0}"
2636
.format(os.strerror(e.errno)))
2637
else:
2638
logger.warning("Could not save persistent state:",
2639
exc_info=e)
2640
raise e
2641
2642
# Delete all clients, and settings from config
2643
while tcp_server.clients:
2644
name, client = tcp_server.clients.popitem()
2645
if use_dbus:
2646
client.remove_from_connection()
2647
# Don't signal anything except ClientRemoved
2648
client.disable(quiet=True)
2649
if use_dbus:
2650
# Emit D-Bus signal
2651
mandos_dbus_service.ClientRemoved(client
2652
.dbus_object_path,
2653
client.name)
2654
client_settings.clear()
2655
2656
atexit.register(cleanup)
2657
2658
for client in tcp_server.clients.itervalues():
1659
2659
if use_dbus:
1660
2660
# Emit D-Bus signal
1661
mandos_dbus_service.ClientAdded(client.dbus_object_path,
1662
client.GetAll(u""))
1663
client.enable()
2661
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2662
# Need to initiate checking of clients
2663
if client.enabled:
2664
client.init_checker()
1664
2665
1665
2666
tcp_server.enable()
1666
2667
tcp_server.server_activate()
1668
2669
# Find out what port we got
1669
2670
service.port = tcp_server.socket.getsockname()[1]
1670
2671
if use_ipv6:
1671
logger.info(u"Now listening on address %r, port %d,"
1672
" flowinfo %d, scope_id %d"
1673
% tcp_server.socket.getsockname())
2672
logger.info("Now listening on address %r, port %d,"
2673
" flowinfo %d, scope_id %d",
2674
*tcp_server.socket.getsockname())
1674
2675
else: # IPv4
1675
logger.info(u"Now listening on address %r, port %d"
1676
% tcp_server.socket.getsockname())
2676
logger.info("Now listening on address %r, port %d",
2677
*tcp_server.socket.getsockname())
1677
2678
1678
2679
#service.interface = tcp_server.socket.getsockname()[3]
1679
2680
1681
2682
# From the Avahi example code
1682
2683
try:
1683
2684
service.activate()
1684
except dbus.exceptions.DBusException, error:
1685
logger.critical(u"DBusException: %s", error)
2685
except dbus.exceptions.DBusException as error:
2686
logger.critical("D-Bus Exception", exc_info=error)
2687
cleanup()
1686
2688
sys.exit(1)
1687
2689
# End of Avahi example code
1688
2690
1691
2693
(tcp_server.handle_request
1692
2694
(*args[2:], **kwargs) or True))
1693
2695
1694
logger.debug(u"Starting main loop")
2696
logger.debug("Starting main loop")
1695
2697
main_loop.run()
1696
except AvahiError, error:
1697
logger.critical(u"AvahiError: %s", error)
2698
except AvahiError as error:
2699
logger.critical("Avahi Error", exc_info=error)
2700
cleanup()
1698
2701
sys.exit(1)
1699
2702
except KeyboardInterrupt:
1700
2703
if debug:
1701
print >> sys.stderr
1702
logger.debug(u"Server received KeyboardInterrupt")
1703
logger.debug(u"Server exiting")
2704
print("", file=sys.stderr)
2705
logger.debug("Server received KeyboardInterrupt")
2706
logger.debug("Server exiting")
2707
# Must run before the D-Bus bus name gets deregistered
2708
cleanup()
1704
2709
1705
2710
if __name__ == '__main__':
1706
2711
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0