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- Committer: Teddy Hogeborn
- Date: 2010-09-25 23:52:17 UTC
- Revision ID: teddy@fukt.bsnet.se-20100925235217-4hhqfryz1ste6uw3
* mandos (ClientDBus.__init__): Bug fix: Translate "-" in client names
to "_" in D-Bus object paths.
(MandosServer.handle_ipc): Bug fix: Send only address string to
D-Bus signal, not whole tuple.
* mandos-ctl: New options "--approve-by-default", "--deny-by-default",
"--approval-delay", and "--approval-duration".
* mandos-ctl.xml (SYNOPSIS, OPTIONS): Document new options.
* mandos-monitor (MandosClientWidget.update): Fix spelling.
to "_" in D-Bus object paths.
(MandosServer.handle_ipc): Bug fix: Send only address string to
D-Bus signal, not whole tuple.
* mandos-ctl: New options "--approve-by-default", "--deny-by-default",
"--approval-delay", and "--approval-duration".
* mandos-ctl.xml (SYNOPSIS, OPTIONS): Document new options.
* mandos-monitor (MandosClientWidget.update): Fix spelling.
added
removed
mandos
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
# methods "add" and "remove" in the "AvahiService" class, the
10
# "server_state_changed" and "entry_group_state_changed" functions,
11
# and some lines in "main".
9
# methods "add", "remove", "server_state_changed",
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
14
# Copyright © 2008,2009 Teddy Hogeborn
33
33
34
34
from __future__ import division, with_statement, absolute_import
35
35
36
import SocketServer
36
import SocketServer as socketserver
37
37
import socket
38
38
import optparse
39
39
import datetime
44
44
import gnutls.library.functions
45
45
import gnutls.library.constants
46
46
import gnutls.library.types
47
import ConfigParser
47
import ConfigParser as configparser
48
48
import sys
49
49
import re
50
50
import os
51
51
import signal
52
from sets import Set
53
52
import subprocess
54
53
import atexit
55
54
import stat
56
55
import logging
57
56
import logging.handlers
58
57
import pwd
59
from contextlib import closing
58
import contextlib
59
import struct
60
import fcntl
61
import functools
62
import cPickle as pickle
63
import multiprocessing
60
64
61
65
import dbus
62
66
import dbus.service
65
69
from dbus.mainloop.glib import DBusGMainLoop
66
70
import ctypes
67
71
import ctypes.util
68
69
version = "1.0.5"
70
71
logger = logging.Logger('mandos')
72
import xml.dom.minidom
73
import inspect
74
75
try:
76
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
77
except AttributeError:
78
try:
79
from IN import SO_BINDTODEVICE
80
except ImportError:
81
SO_BINDTODEVICE = None
82
83
84
version = "1.0.14"
85
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
72
88
syslogger = (logging.handlers.SysLogHandler
73
89
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
74
90
address = "/dev/log"))
75
91
syslogger.setFormatter(logging.Formatter
76
('Mandos: %(levelname)s: %(message)s'))
92
(u'Mandos [%(process)d]: %(levelname)s:'
93
u' %(message)s'))
77
94
logger.addHandler(syslogger)
78
95
79
96
console = logging.StreamHandler()
80
console.setFormatter(logging.Formatter('%(name)s: %(levelname)s:'
81
' %(message)s'))
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
98
u' %(levelname)s:'
99
u' %(message)s'))
82
100
logger.addHandler(console)
83
101
84
102
class AvahiError(Exception):
97
115
98
116
class AvahiService(object):
99
117
"""An Avahi (Zeroconf) service.
118
100
119
Attributes:
101
120
interface: integer; avahi.IF_UNSPEC or an interface index.
102
121
Used to optionally bind to the specified interface.
103
name: string; Example: 'Mandos'
104
type: string; Example: '_mandos._tcp'.
122
name: string; Example: u'Mandos'
123
type: string; Example: u'_mandos._tcp'.
105
124
See <http://www.dns-sd.org/ServiceTypes.html>
106
125
port: integer; what port to announce
107
126
TXT: list of strings; TXT record for the service
110
129
max_renames: integer; maximum number of renames
111
130
rename_count: integer; counter so we only rename after collisions
112
131
a sensible number of times
132
group: D-Bus Entry Group
133
server: D-Bus Server
134
bus: dbus.SystemBus()
113
135
"""
114
136
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
115
137
servicetype = None, port = None, TXT = None,
116
domain = "", host = "", max_renames = 32768):
138
domain = u"", host = u"", max_renames = 32768,
139
protocol = avahi.PROTO_UNSPEC, bus = None):
117
140
self.interface = interface
118
141
self.name = name
119
142
self.type = servicetype
123
146
self.host = host
124
147
self.rename_count = 0
125
148
self.max_renames = max_renames
149
self.protocol = protocol
150
self.group = None # our entry group
151
self.server = None
152
self.bus = bus
126
153
def rename(self):
127
154
"""Derived from the Avahi example code"""
128
155
if self.rename_count >= self.max_renames:
130
157
u" after %i retries, exiting.",
131
158
self.rename_count)
132
159
raise AvahiServiceError(u"Too many renames")
133
self.name = server.GetAlternativeServiceName(self.name)
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
134
161
logger.info(u"Changing Zeroconf service name to %r ...",
135
str(self.name))
162
self.name)
136
163
syslogger.setFormatter(logging.Formatter
137
('Mandos (%s): %%(levelname)s:'
138
' %%(message)s' % self.name))
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
166
% self.name))
139
167
self.remove()
140
self.add()
168
try:
169
self.add()
170
except dbus.exceptions.DBusException, error:
171
logger.critical(u"DBusException: %s", error)
172
self.cleanup()
173
os._exit(1)
141
174
self.rename_count += 1
142
175
def remove(self):
143
176
"""Derived from the Avahi example code"""
144
if group is not None:
145
group.Reset()
177
if self.group is not None:
178
self.group.Reset()
146
179
def add(self):
147
180
"""Derived from the Avahi example code"""
148
global group
149
if group is None:
150
group = dbus.Interface(bus.get_object
151
(avahi.DBUS_NAME,
152
server.EntryGroupNew()),
153
avahi.DBUS_INTERFACE_ENTRY_GROUP)
154
group.connect_to_signal('StateChanged',
155
entry_group_state_changed)
181
if self.group is None:
182
self.group = dbus.Interface(
183
self.bus.get_object(avahi.DBUS_NAME,
184
self.server.EntryGroupNew()),
185
avahi.DBUS_INTERFACE_ENTRY_GROUP)
186
self.group.connect_to_signal('StateChanged',
187
self
188
.entry_group_state_changed)
156
189
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
157
service.name, service.type)
158
group.AddService(
159
self.interface, # interface
160
avahi.PROTO_INET6, # protocol
161
dbus.UInt32(0), # flags
162
self.name, self.type,
163
self.domain, self.host,
164
dbus.UInt16(self.port),
165
avahi.string_array_to_txt_array(self.TXT))
166
group.Commit()
167
168
# From the Avahi example code:
169
group = None # our entry group
170
# End of Avahi example code
171
172
173
def _datetime_to_dbus(dt, variant_level=0):
174
"""Convert a UTC datetime.datetime() to a D-Bus type."""
175
return dbus.String(dt.isoformat(), variant_level=variant_level)
176
177
178
class Client(dbus.service.Object):
190
self.name, self.type)
191
self.group.AddService(
192
self.interface,
193
self.protocol,
194
dbus.UInt32(0), # flags
195
self.name, self.type,
196
self.domain, self.host,
197
dbus.UInt16(self.port),
198
avahi.string_array_to_txt_array(self.TXT))
199
self.group.Commit()
200
def entry_group_state_changed(self, state, error):
201
"""Derived from the Avahi example code"""
202
logger.debug(u"Avahi entry group state change: %i", state)
203
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
205
logger.debug(u"Zeroconf service established.")
206
elif state == avahi.ENTRY_GROUP_COLLISION:
207
logger.warning(u"Zeroconf service name collision.")
208
self.rename()
209
elif state == avahi.ENTRY_GROUP_FAILURE:
210
logger.critical(u"Avahi: Error in group state changed %s",
211
unicode(error))
212
raise AvahiGroupError(u"State changed: %s"
213
% unicode(error))
214
def cleanup(self):
215
"""Derived from the Avahi example code"""
216
if self.group is not None:
217
self.group.Free()
218
self.group = None
219
def server_state_changed(self, state):
220
"""Derived from the Avahi example code"""
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
224
self.remove()
225
elif state == avahi.SERVER_RUNNING:
226
self.add()
227
def activate(self):
228
"""Derived from the Avahi example code"""
229
if self.server is None:
230
self.server = dbus.Interface(
231
self.bus.get_object(avahi.DBUS_NAME,
232
avahi.DBUS_PATH_SERVER),
233
avahi.DBUS_INTERFACE_SERVER)
234
self.server.connect_to_signal(u"StateChanged",
235
self.server_state_changed)
236
self.server_state_changed(self.server.GetState())
237
238
239
class Client(object):
179
240
"""A representation of a client host served by this server.
241
180
242
Attributes:
181
name: string; from the config file, used in log messages and
182
D-Bus identifiers
183
fingerprint: string (40 or 32 hexadecimal digits); used to
184
uniquely identify the client
185
secret: bytestring; sent verbatim (over TLS) to client
186
host: string; available for use by the checker command
187
created: datetime.datetime(); (UTC) object creation
188
last_enabled: datetime.datetime(); (UTC)
189
enabled: bool()
190
last_checked_ok: datetime.datetime(); (UTC) or None
191
timeout: datetime.timedelta(); How long from last_checked_ok
192
until this client is invalid
193
interval: datetime.timedelta(); How often to start a new checker
194
disable_hook: If set, called by disable() as disable_hook(self)
243
_approved: bool(); 'None' if not yet approved/disapproved
244
approval_delay: datetime.timedelta(); Time to wait for approval
245
approval_duration: datetime.timedelta(); Duration of one approval
195
246
checker: subprocess.Popen(); a running checker process used
196
247
to see if the client lives.
197
248
'None' if no process is running.
198
checker_initiator_tag: a gobject event source tag, or None
199
disable_initiator_tag: - '' -
200
249
checker_callback_tag: - '' -
201
checker_command: string; External command which is run to check if
202
client lives. %() expansions are done at
250
checker_command: string; External command which is run to check
251
if client lives. %() expansions are done at
203
252
runtime with vars(self) as dict, so that for
204
253
instance %(name)s can be used in the command.
205
use_dbus: bool(); Whether to provide D-Bus interface and signals
206
dbus_object_path: dbus.ObjectPath ; only set if self.use_dbus
254
checker_initiator_tag: a gobject event source tag, or None
255
created: datetime.datetime(); (UTC) object creation
256
current_checker_command: string; current running checker_command
257
disable_hook: If set, called by disable() as disable_hook(self)
258
disable_initiator_tag: - '' -
259
enabled: bool()
260
fingerprint: string (40 or 32 hexadecimal digits); used to
261
uniquely identify the client
262
host: string; available for use by the checker command
263
interval: datetime.timedelta(); How often to start a new checker
264
last_checked_ok: datetime.datetime(); (UTC) or None
265
last_enabled: datetime.datetime(); (UTC)
266
name: string; from the config file, used in log messages and
267
D-Bus identifiers
268
secret: bytestring; sent verbatim (over TLS) to client
269
timeout: datetime.timedelta(); How long from last_checked_ok
270
until this client is disabled
271
runtime_expansions: Allowed attributes for runtime expansion.
207
272
"""
273
274
runtime_expansions = (u"approval_delay", u"approval_duration",
275
u"created", u"enabled", u"fingerprint",
276
u"host", u"interval", u"last_checked_ok",
277
u"last_enabled", u"name", u"timeout")
278
279
@staticmethod
280
def _timedelta_to_milliseconds(td):
281
"Convert a datetime.timedelta() to milliseconds"
282
return ((td.days * 24 * 60 * 60 * 1000)
283
+ (td.seconds * 1000)
284
+ (td.microseconds // 1000))
285
208
286
def timeout_milliseconds(self):
209
287
"Return the 'timeout' attribute in milliseconds"
210
return ((self.timeout.days * 24 * 60 * 60 * 1000)
211
+ (self.timeout.seconds * 1000)
212
+ (self.timeout.microseconds // 1000))
288
return self._timedelta_to_milliseconds(self.timeout)
213
289
214
290
def interval_milliseconds(self):
215
291
"Return the 'interval' attribute in milliseconds"
216
return ((self.interval.days * 24 * 60 * 60 * 1000)
217
+ (self.interval.seconds * 1000)
218
+ (self.interval.microseconds // 1000))
292
return self._timedelta_to_milliseconds(self.interval)
293
294
def approval_delay_milliseconds(self):
295
return self._timedelta_to_milliseconds(self.approval_delay)
219
296
220
def __init__(self, name = None, disable_hook=None, config=None,
221
use_dbus=True):
297
def __init__(self, name = None, disable_hook=None, config=None):
222
298
"""Note: the 'checker' key in 'config' sets the
223
299
'checker_command' attribute and *not* the 'checker'
224
300
attribute."""
226
302
if config is None:
227
303
config = {}
228
304
logger.debug(u"Creating client %r", self.name)
229
self.use_dbus = False # During __init__
230
305
# Uppercase and remove spaces from fingerprint for later
231
306
# comparison purposes with return value from the fingerprint()
232
307
# function
233
self.fingerprint = (config["fingerprint"].upper()
308
self.fingerprint = (config[u"fingerprint"].upper()
234
309
.replace(u" ", u""))
235
310
logger.debug(u" Fingerprint: %s", self.fingerprint)
236
if "secret" in config:
237
self.secret = config["secret"].decode(u"base64")
238
elif "secfile" in config:
239
with closing(open(os.path.expanduser
240
(os.path.expandvars
241
(config["secfile"])))) as secfile:
311
if u"secret" in config:
312
self.secret = config[u"secret"].decode(u"base64")
313
elif u"secfile" in config:
314
with open(os.path.expanduser(os.path.expandvars
315
(config[u"secfile"])),
316
"rb") as secfile:
242
317
self.secret = secfile.read()
243
318
else:
244
319
raise TypeError(u"No secret or secfile for client %s"
245
320
% self.name)
246
self.host = config.get("host", "")
321
self.host = config.get(u"host", u"")
247
322
self.created = datetime.datetime.utcnow()
248
323
self.enabled = False
249
324
self.last_enabled = None
250
325
self.last_checked_ok = None
251
self.timeout = string_to_delta(config["timeout"])
252
self.interval = string_to_delta(config["interval"])
326
self.timeout = string_to_delta(config[u"timeout"])
327
self.interval = string_to_delta(config[u"interval"])
253
328
self.disable_hook = disable_hook
254
329
self.checker = None
255
330
self.checker_initiator_tag = None
256
331
self.disable_initiator_tag = None
257
332
self.checker_callback_tag = None
258
self.checker_command = config["checker"]
333
self.checker_command = config[u"checker"]
334
self.current_checker_command = None
259
335
self.last_connect = None
260
# Only now, when this client is initialized, can it show up on
261
# the D-Bus
262
self.use_dbus = use_dbus
263
if self.use_dbus:
264
self.dbus_object_path = (dbus.ObjectPath
265
("/clients/"
266
+ self.name.replace(".", "_")))
267
dbus.service.Object.__init__(self, bus,
268
self.dbus_object_path)
336
self._approved = None
337
self.approved_by_default = config.get(u"approved_by_default",
338
True)
339
self.approvals_pending = 0
340
self.approval_delay = string_to_delta(
341
config[u"approval_delay"])
342
self.approval_duration = string_to_delta(
343
config[u"approval_duration"])
344
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
269
345
346
def send_changedstate(self):
347
self.changedstate.acquire()
348
self.changedstate.notify_all()
349
self.changedstate.release()
350
270
351
def enable(self):
271
352
"""Start this client's checker and timeout hooks"""
353
if getattr(self, u"enabled", False):
354
# Already enabled
355
return
356
self.send_changedstate()
272
357
self.last_enabled = datetime.datetime.utcnow()
273
358
# Schedule a new checker to be started an 'interval' from now,
274
359
# and every interval from then on.
275
360
self.checker_initiator_tag = (gobject.timeout_add
276
361
(self.interval_milliseconds(),
277
362
self.start_checker))
278
# Also start a new checker *right now*.
279
self.start_checker()
280
363
# Schedule a disable() when 'timeout' has passed
281
364
self.disable_initiator_tag = (gobject.timeout_add
282
365
(self.timeout_milliseconds(),
283
366
self.disable))
284
367
self.enabled = True
285
if self.use_dbus:
286
# Emit D-Bus signals
287
self.PropertyChanged(dbus.String(u"enabled"),
288
dbus.Boolean(True, variant_level=1))
289
self.PropertyChanged(dbus.String(u"last_enabled"),
290
(_datetime_to_dbus(self.last_enabled,
291
variant_level=1)))
368
# Also start a new checker *right now*.
369
self.start_checker()
292
370
293
def disable(self):
371
def disable(self, quiet=True):
294
372
"""Disable this client."""
295
373
if not getattr(self, "enabled", False):
296
374
return False
297
logger.info(u"Disabling client %s", self.name)
298
if getattr(self, "disable_initiator_tag", False):
375
if not quiet:
376
self.send_changedstate()
377
if not quiet:
378
logger.info(u"Disabling client %s", self.name)
379
if getattr(self, u"disable_initiator_tag", False):
299
380
gobject.source_remove(self.disable_initiator_tag)
300
381
self.disable_initiator_tag = None
301
if getattr(self, "checker_initiator_tag", False):
382
if getattr(self, u"checker_initiator_tag", False):
302
383
gobject.source_remove(self.checker_initiator_tag)
303
384
self.checker_initiator_tag = None
304
385
self.stop_checker()
305
386
if self.disable_hook:
306
387
self.disable_hook(self)
307
388
self.enabled = False
308
if self.use_dbus:
309
# Emit D-Bus signal
310
self.PropertyChanged(dbus.String(u"enabled"),
311
dbus.Boolean(False, variant_level=1))
312
389
# Do not run this again if called by a gobject.timeout_add
313
390
return False
314
391
320
397
"""The checker has completed, so take appropriate actions."""
321
398
self.checker_callback_tag = None
322
399
self.checker = None
323
if self.use_dbus:
324
# Emit D-Bus signal
325
self.PropertyChanged(dbus.String(u"checker_running"),
326
dbus.Boolean(False, variant_level=1))
327
400
if os.WIFEXITED(condition):
328
401
exitstatus = os.WEXITSTATUS(condition)
329
402
if exitstatus == 0:
333
406
else:
334
407
logger.info(u"Checker for %(name)s failed",
335
408
vars(self))
336
if self.use_dbus:
337
# Emit D-Bus signal
338
self.CheckerCompleted(dbus.Int16(exitstatus),
339
dbus.Int64(condition),
340
dbus.String(command))
341
409
else:
342
410
logger.warning(u"Checker for %(name)s crashed?",
343
411
vars(self))
344
if self.use_dbus:
345
# Emit D-Bus signal
346
self.CheckerCompleted(dbus.Int16(-1),
347
dbus.Int64(condition),
348
dbus.String(command))
349
412
350
413
def checked_ok(self):
351
414
"""Bump up the timeout for this client.
415
352
416
This should only be called when the client has been seen,
353
417
alive and well.
354
418
"""
357
421
self.disable_initiator_tag = (gobject.timeout_add
358
422
(self.timeout_milliseconds(),
359
423
self.disable))
360
if self.use_dbus:
361
# Emit D-Bus signal
362
self.PropertyChanged(
363
dbus.String(u"last_checked_ok"),
364
(_datetime_to_dbus(self.last_checked_ok,
365
variant_level=1)))
366
424
367
425
def start_checker(self):
368
426
"""Start a new checker subprocess if one is not running.
427
369
428
If a checker already exists, leave it running and do
370
429
nothing."""
371
430
# The reason for not killing a running checker is that if we
374
433
# client would inevitably timeout, since no checker would get
375
434
# a chance to run to completion. If we instead leave running
376
435
# checkers alone, the checker would have to take more time
377
# than 'timeout' for the client to be declared invalid, which
378
# is as it should be.
436
# than 'timeout' for the client to be disabled, which is as it
437
# should be.
438
439
# If a checker exists, make sure it is not a zombie
440
try:
441
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
442
except (AttributeError, OSError), error:
443
if (isinstance(error, OSError)
444
and error.errno != errno.ECHILD):
445
raise error
446
else:
447
if pid:
448
logger.warning(u"Checker was a zombie")
449
gobject.source_remove(self.checker_callback_tag)
450
self.checker_callback(pid, status,
451
self.current_checker_command)
452
# Start a new checker if needed
379
453
if self.checker is None:
380
454
try:
381
455
# In case checker_command has exactly one % operator
382
456
command = self.checker_command % self.host
383
457
except TypeError:
384
458
# Escape attributes for the shell
385
escaped_attrs = dict((key, re.escape(str(val)))
386
for key, val in
387
vars(self).iteritems())
459
escaped_attrs = dict(
460
(attr,
461
re.escape(unicode(str(getattr(self, attr, u"")),
462
errors=
463
u'replace')))
464
for attr in
465
self.runtime_expansions)
466
388
467
try:
389
468
command = self.checker_command % escaped_attrs
390
469
except TypeError, error:
391
470
logger.error(u'Could not format string "%s":'
392
471
u' %s', self.checker_command, error)
393
472
return True # Try again later
473
self.current_checker_command = command
394
474
try:
395
475
logger.info(u"Starting checker %r for %s",
396
476
command, self.name)
400
480
# always replaced by /dev/null.)
401
481
self.checker = subprocess.Popen(command,
402
482
close_fds=True,
403
shell=True, cwd="/")
404
if self.use_dbus:
405
# Emit D-Bus signal
406
self.CheckerStarted(command)
407
self.PropertyChanged(
408
dbus.String("checker_running"),
409
dbus.Boolean(True, variant_level=1))
483
shell=True, cwd=u"/")
410
484
self.checker_callback_tag = (gobject.child_watch_add
411
485
(self.checker.pid,
412
486
self.checker_callback,
413
487
data=command))
488
# The checker may have completed before the gobject
489
# watch was added. Check for this.
490
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
491
if pid:
492
gobject.source_remove(self.checker_callback_tag)
493
self.checker_callback(pid, status, command)
414
494
except OSError, error:
415
495
logger.error(u"Failed to start subprocess: %s",
416
496
error)
422
502
if self.checker_callback_tag:
423
503
gobject.source_remove(self.checker_callback_tag)
424
504
self.checker_callback_tag = None
425
if getattr(self, "checker", None) is None:
505
if getattr(self, u"checker", None) is None:
426
506
return
427
507
logger.debug(u"Stopping checker for %(name)s", vars(self))
428
508
try:
429
509
os.kill(self.checker.pid, signal.SIGTERM)
430
#os.sleep(0.5)
510
#time.sleep(0.5)
431
511
#if self.checker.poll() is None:
432
512
# os.kill(self.checker.pid, signal.SIGKILL)
433
513
except OSError, error:
434
514
if error.errno != errno.ESRCH: # No such process
435
515
raise
436
516
self.checker = None
437
if self.use_dbus:
438
self.PropertyChanged(dbus.String(u"checker_running"),
439
dbus.Boolean(False, variant_level=1))
440
441
def still_valid(self):
442
"""Has the timeout not yet passed for this client?"""
443
if not getattr(self, "enabled", False):
444
return False
445
now = datetime.datetime.utcnow()
446
if self.last_checked_ok is None:
447
return now < (self.created + self.timeout)
448
else:
449
return now < (self.last_checked_ok + self.timeout)
450
451
## D-Bus methods & signals
517
518
def dbus_service_property(dbus_interface, signature=u"v",
519
access=u"readwrite", byte_arrays=False):
520
"""Decorators for marking methods of a DBusObjectWithProperties to
521
become properties on the D-Bus.
522
523
The decorated method will be called with no arguments by "Get"
524
and with one argument by "Set".
525
526
The parameters, where they are supported, are the same as
527
dbus.service.method, except there is only "signature", since the
528
type from Get() and the type sent to Set() is the same.
529
"""
530
# Encoding deeply encoded byte arrays is not supported yet by the
531
# "Set" method, so we fail early here:
532
if byte_arrays and signature != u"ay":
533
raise ValueError(u"Byte arrays not supported for non-'ay'"
534
u" signature %r" % signature)
535
def decorator(func):
536
func._dbus_is_property = True
537
func._dbus_interface = dbus_interface
538
func._dbus_signature = signature
539
func._dbus_access = access
540
func._dbus_name = func.__name__
541
if func._dbus_name.endswith(u"_dbus_property"):
542
func._dbus_name = func._dbus_name[:-14]
543
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
544
return func
545
return decorator
546
547
548
class DBusPropertyException(dbus.exceptions.DBusException):
549
"""A base class for D-Bus property-related exceptions
550
"""
551
def __unicode__(self):
552
return unicode(str(self))
553
554
555
class DBusPropertyAccessException(DBusPropertyException):
556
"""A property's access permissions disallows an operation.
557
"""
558
pass
559
560
561
class DBusPropertyNotFound(DBusPropertyException):
562
"""An attempt was made to access a non-existing property.
563
"""
564
pass
565
566
567
class DBusObjectWithProperties(dbus.service.Object):
568
"""A D-Bus object with properties.
569
570
Classes inheriting from this can use the dbus_service_property
571
decorator to expose methods as D-Bus properties. It exposes the
572
standard Get(), Set(), and GetAll() methods on the D-Bus.
573
"""
574
575
@staticmethod
576
def _is_dbus_property(obj):
577
return getattr(obj, u"_dbus_is_property", False)
578
579
def _get_all_dbus_properties(self):
580
"""Returns a generator of (name, attribute) pairs
581
"""
582
return ((prop._dbus_name, prop)
583
for name, prop in
584
inspect.getmembers(self, self._is_dbus_property))
585
586
def _get_dbus_property(self, interface_name, property_name):
587
"""Returns a bound method if one exists which is a D-Bus
588
property with the specified name and interface.
589
"""
590
for name in (property_name,
591
property_name + u"_dbus_property"):
592
prop = getattr(self, name, None)
593
if (prop is None
594
or not self._is_dbus_property(prop)
595
or prop._dbus_name != property_name
596
or (interface_name and prop._dbus_interface
597
and interface_name != prop._dbus_interface)):
598
continue
599
return prop
600
# No such property
601
raise DBusPropertyNotFound(self.dbus_object_path + u":"
602
+ interface_name + u"."
603
+ property_name)
604
605
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
606
out_signature=u"v")
607
def Get(self, interface_name, property_name):
608
"""Standard D-Bus property Get() method, see D-Bus standard.
609
"""
610
prop = self._get_dbus_property(interface_name, property_name)
611
if prop._dbus_access == u"write":
612
raise DBusPropertyAccessException(property_name)
613
value = prop()
614
if not hasattr(value, u"variant_level"):
615
return value
616
return type(value)(value, variant_level=value.variant_level+1)
617
618
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
619
def Set(self, interface_name, property_name, value):
620
"""Standard D-Bus property Set() method, see D-Bus standard.
621
"""
622
prop = self._get_dbus_property(interface_name, property_name)
623
if prop._dbus_access == u"read":
624
raise DBusPropertyAccessException(property_name)
625
if prop._dbus_get_args_options[u"byte_arrays"]:
626
# The byte_arrays option is not supported yet on
627
# signatures other than "ay".
628
if prop._dbus_signature != u"ay":
629
raise ValueError
630
value = dbus.ByteArray(''.join(unichr(byte)
631
for byte in value))
632
prop(value)
633
634
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
635
out_signature=u"a{sv}")
636
def GetAll(self, interface_name):
637
"""Standard D-Bus property GetAll() method, see D-Bus
638
standard.
639
640
Note: Will not include properties with access="write".
641
"""
642
all = {}
643
for name, prop in self._get_all_dbus_properties():
644
if (interface_name
645
and interface_name != prop._dbus_interface):
646
# Interface non-empty but did not match
647
continue
648
# Ignore write-only properties
649
if prop._dbus_access == u"write":
650
continue
651
value = prop()
652
if not hasattr(value, u"variant_level"):
653
all[name] = value
654
continue
655
all[name] = type(value)(value, variant_level=
656
value.variant_level+1)
657
return dbus.Dictionary(all, signature=u"sv")
658
659
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
660
out_signature=u"s",
661
path_keyword='object_path',
662
connection_keyword='connection')
663
def Introspect(self, object_path, connection):
664
"""Standard D-Bus method, overloaded to insert property tags.
665
"""
666
xmlstring = dbus.service.Object.Introspect(self, object_path,
667
connection)
668
try:
669
document = xml.dom.minidom.parseString(xmlstring)
670
def make_tag(document, name, prop):
671
e = document.createElement(u"property")
672
e.setAttribute(u"name", name)
673
e.setAttribute(u"type", prop._dbus_signature)
674
e.setAttribute(u"access", prop._dbus_access)
675
return e
676
for if_tag in document.getElementsByTagName(u"interface"):
677
for tag in (make_tag(document, name, prop)
678
for name, prop
679
in self._get_all_dbus_properties()
680
if prop._dbus_interface
681
== if_tag.getAttribute(u"name")):
682
if_tag.appendChild(tag)
683
# Add the names to the return values for the
684
# "org.freedesktop.DBus.Properties" methods
685
if (if_tag.getAttribute(u"name")
686
== u"org.freedesktop.DBus.Properties"):
687
for cn in if_tag.getElementsByTagName(u"method"):
688
if cn.getAttribute(u"name") == u"Get":
689
for arg in cn.getElementsByTagName(u"arg"):
690
if (arg.getAttribute(u"direction")
691
== u"out"):
692
arg.setAttribute(u"name", u"value")
693
elif cn.getAttribute(u"name") == u"GetAll":
694
for arg in cn.getElementsByTagName(u"arg"):
695
if (arg.getAttribute(u"direction")
696
== u"out"):
697
arg.setAttribute(u"name", u"props")
698
xmlstring = document.toxml(u"utf-8")
699
document.unlink()
700
except (AttributeError, xml.dom.DOMException,
701
xml.parsers.expat.ExpatError), error:
702
logger.error(u"Failed to override Introspection method",
703
error)
704
return xmlstring
705
706
707
class ClientDBus(Client, DBusObjectWithProperties):
708
"""A Client class using D-Bus
709
710
Attributes:
711
dbus_object_path: dbus.ObjectPath
712
bus: dbus.SystemBus()
713
"""
714
715
runtime_expansions = (Client.runtime_expansions
716
+ (u"dbus_object_path",))
717
718
# dbus.service.Object doesn't use super(), so we can't either.
719
720
def __init__(self, bus = None, *args, **kwargs):
721
self._approvals_pending = 0
722
self.bus = bus
723
Client.__init__(self, *args, **kwargs)
724
# Only now, when this client is initialized, can it show up on
725
# the D-Bus
726
client_object_name = unicode(self.name).translate(
727
{ord(u"."): ord(u"_"),
728
ord(u"-"): ord(u"_")})
729
self.dbus_object_path = (dbus.ObjectPath
730
(u"/clients/" + client_object_name))
731
DBusObjectWithProperties.__init__(self, self.bus,
732
self.dbus_object_path)
733
734
def _get_approvals_pending(self):
735
return self._approvals_pending
736
def _set_approvals_pending(self, value):
737
old_value = self._approvals_pending
738
self._approvals_pending = value
739
bval = bool(value)
740
if (hasattr(self, "dbus_object_path")
741
and bval is not bool(old_value)):
742
dbus_bool = dbus.Boolean(bval, variant_level=1)
743
self.PropertyChanged(dbus.String(u"ApprovalPending"),
744
dbus_bool)
745
746
approvals_pending = property(_get_approvals_pending,
747
_set_approvals_pending)
748
del _get_approvals_pending, _set_approvals_pending
749
750
@staticmethod
751
def _datetime_to_dbus(dt, variant_level=0):
752
"""Convert a UTC datetime.datetime() to a D-Bus type."""
753
return dbus.String(dt.isoformat(),
754
variant_level=variant_level)
755
756
def enable(self):
757
oldstate = getattr(self, u"enabled", False)
758
r = Client.enable(self)
759
if oldstate != self.enabled:
760
# Emit D-Bus signals
761
self.PropertyChanged(dbus.String(u"Enabled"),
762
dbus.Boolean(True, variant_level=1))
763
self.PropertyChanged(
764
dbus.String(u"LastEnabled"),
765
self._datetime_to_dbus(self.last_enabled,
766
variant_level=1))
767
return r
768
769
def disable(self, quiet = False):
770
oldstate = getattr(self, u"enabled", False)
771
r = Client.disable(self, quiet=quiet)
772
if not quiet and oldstate != self.enabled:
773
# Emit D-Bus signal
774
self.PropertyChanged(dbus.String(u"Enabled"),
775
dbus.Boolean(False, variant_level=1))
776
return r
777
778
def __del__(self, *args, **kwargs):
779
try:
780
self.remove_from_connection()
781
except LookupError:
782
pass
783
if hasattr(DBusObjectWithProperties, u"__del__"):
784
DBusObjectWithProperties.__del__(self, *args, **kwargs)
785
Client.__del__(self, *args, **kwargs)
786
787
def checker_callback(self, pid, condition, command,
788
*args, **kwargs):
789
self.checker_callback_tag = None
790
self.checker = None
791
# Emit D-Bus signal
792
self.PropertyChanged(dbus.String(u"CheckerRunning"),
793
dbus.Boolean(False, variant_level=1))
794
if os.WIFEXITED(condition):
795
exitstatus = os.WEXITSTATUS(condition)
796
# Emit D-Bus signal
797
self.CheckerCompleted(dbus.Int16(exitstatus),
798
dbus.Int64(condition),
799
dbus.String(command))
800
else:
801
# Emit D-Bus signal
802
self.CheckerCompleted(dbus.Int16(-1),
803
dbus.Int64(condition),
804
dbus.String(command))
805
806
return Client.checker_callback(self, pid, condition, command,
807
*args, **kwargs)
808
809
def checked_ok(self, *args, **kwargs):
810
r = Client.checked_ok(self, *args, **kwargs)
811
# Emit D-Bus signal
812
self.PropertyChanged(
813
dbus.String(u"LastCheckedOK"),
814
(self._datetime_to_dbus(self.last_checked_ok,
815
variant_level=1)))
816
return r
817
818
def start_checker(self, *args, **kwargs):
819
old_checker = self.checker
820
if self.checker is not None:
821
old_checker_pid = self.checker.pid
822
else:
823
old_checker_pid = None
824
r = Client.start_checker(self, *args, **kwargs)
825
# Only if new checker process was started
826
if (self.checker is not None
827
and old_checker_pid != self.checker.pid):
828
# Emit D-Bus signal
829
self.CheckerStarted(self.current_checker_command)
830
self.PropertyChanged(
831
dbus.String(u"CheckerRunning"),
832
dbus.Boolean(True, variant_level=1))
833
return r
834
835
def stop_checker(self, *args, **kwargs):
836
old_checker = getattr(self, u"checker", None)
837
r = Client.stop_checker(self, *args, **kwargs)
838
if (old_checker is not None
839
and getattr(self, u"checker", None) is None):
840
self.PropertyChanged(dbus.String(u"CheckerRunning"),
841
dbus.Boolean(False, variant_level=1))
842
return r
843
844
def _reset_approved(self):
845
self._approved = None
846
return False
847
848
def approve(self, value=True):
849
self.send_changedstate()
850
self._approved = value
851
gobject.timeout_add(self._timedelta_to_milliseconds
852
(self.approval_duration),
853
self._reset_approved)
854
855
856
## D-Bus methods, signals & properties
452
857
_interface = u"se.bsnet.fukt.Mandos.Client"
453
858
454
# CheckedOK - method
455
CheckedOK = dbus.service.method(_interface)(checked_ok)
456
CheckedOK.__name__ = "CheckedOK"
859
## Signals
457
860
458
861
# CheckerCompleted - signal
459
@dbus.service.signal(_interface, signature="nxs")
862
@dbus.service.signal(_interface, signature=u"nxs")
460
863
def CheckerCompleted(self, exitcode, waitstatus, command):
461
864
"D-Bus signal"
462
865
pass
463
866
464
867
# CheckerStarted - signal
465
@dbus.service.signal(_interface, signature="s")
868
@dbus.service.signal(_interface, signature=u"s")
466
869
def CheckerStarted(self, command):
467
870
"D-Bus signal"
468
871
pass
469
872
470
# GetAllProperties - method
471
@dbus.service.method(_interface, out_signature="a{sv}")
472
def GetAllProperties(self):
473
"D-Bus method"
474
return dbus.Dictionary({
475
dbus.String("name"):
476
dbus.String(self.name, variant_level=1),
477
dbus.String("fingerprint"):
478
dbus.String(self.fingerprint, variant_level=1),
479
dbus.String("host"):
480
dbus.String(self.host, variant_level=1),
481
dbus.String("created"):
482
_datetime_to_dbus(self.created, variant_level=1),
483
dbus.String("last_enabled"):
484
(_datetime_to_dbus(self.last_enabled,
485
variant_level=1)
486
if self.last_enabled is not None
487
else dbus.Boolean(False, variant_level=1)),
488
dbus.String("enabled"):
489
dbus.Boolean(self.enabled, variant_level=1),
490
dbus.String("last_checked_ok"):
491
(_datetime_to_dbus(self.last_checked_ok,
492
variant_level=1)
493
if self.last_checked_ok is not None
494
else dbus.Boolean (False, variant_level=1)),
495
dbus.String("timeout"):
496
dbus.UInt64(self.timeout_milliseconds(),
497
variant_level=1),
498
dbus.String("interval"):
499
dbus.UInt64(self.interval_milliseconds(),
500
variant_level=1),
501
dbus.String("checker"):
502
dbus.String(self.checker_command,
503
variant_level=1),
504
dbus.String("checker_running"):
505
dbus.Boolean(self.checker is not None,
506
variant_level=1),
507
dbus.String("object_path"):
508
dbus.ObjectPath(self.dbus_object_path,
509
variant_level=1)
510
}, signature="sv")
511
512
# IsStillValid - method
513
IsStillValid = (dbus.service.method(_interface, out_signature="b")
514
(still_valid))
515
IsStillValid.__name__ = "IsStillValid"
516
517
873
# PropertyChanged - signal
518
@dbus.service.signal(_interface, signature="sv")
874
@dbus.service.signal(_interface, signature=u"sv")
519
875
def PropertyChanged(self, property, value):
520
876
"D-Bus signal"
521
877
pass
522
878
523
# SetChecker - method
524
@dbus.service.method(_interface, in_signature="s")
525
def SetChecker(self, checker):
526
"D-Bus setter method"
527
self.checker_command = checker
528
# Emit D-Bus signal
529
self.PropertyChanged(dbus.String(u"checker"),
530
dbus.String(self.checker_command,
531
variant_level=1))
532
533
# SetHost - method
534
@dbus.service.method(_interface, in_signature="s")
535
def SetHost(self, host):
536
"D-Bus setter method"
537
self.host = host
538
# Emit D-Bus signal
539
self.PropertyChanged(dbus.String(u"host"),
540
dbus.String(self.host, variant_level=1))
541
542
# SetInterval - method
543
@dbus.service.method(_interface, in_signature="t")
544
def SetInterval(self, milliseconds):
545
self.interval = datetime.timedelta(0, 0, 0, milliseconds)
546
# Emit D-Bus signal
547
self.PropertyChanged(dbus.String(u"interval"),
548
(dbus.UInt64(self.interval_milliseconds(),
549
variant_level=1)))
550
551
# SetSecret - method
552
@dbus.service.method(_interface, in_signature="ay",
553
byte_arrays=True)
554
def SetSecret(self, secret):
555
"D-Bus setter method"
556
self.secret = str(secret)
557
558
# SetTimeout - method
559
@dbus.service.method(_interface, in_signature="t")
560
def SetTimeout(self, milliseconds):
561
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
562
# Emit D-Bus signal
563
self.PropertyChanged(dbus.String(u"timeout"),
564
(dbus.UInt64(self.timeout_milliseconds(),
565
variant_level=1)))
879
# GotSecret - signal
880
@dbus.service.signal(_interface)
881
def GotSecret(self):
882
"""D-Bus signal
883
Is sent after a successful transfer of secret from the Mandos
884
server to mandos-client
885
"""
886
pass
887
888
# Rejected - signal
889
@dbus.service.signal(_interface, signature=u"s")
890
def Rejected(self, reason):
891
"D-Bus signal"
892
pass
893
894
# NeedApproval - signal
895
@dbus.service.signal(_interface, signature=u"tb")
896
def NeedApproval(self, timeout, default):
897
"D-Bus signal"
898
pass
899
900
## Methods
901
902
# Approve - method
903
@dbus.service.method(_interface, in_signature=u"b")
904
def Approve(self, value):
905
self.approve(value)
906
907
# CheckedOK - method
908
@dbus.service.method(_interface)
909
def CheckedOK(self):
910
return self.checked_ok()
566
911
567
912
# Enable - method
568
Enable = dbus.service.method(_interface)(enable)
569
Enable.__name__ = "Enable"
913
@dbus.service.method(_interface)
914
def Enable(self):
915
"D-Bus method"
916
self.enable()
570
917
571
918
# StartChecker - method
572
919
@dbus.service.method(_interface)
581
928
self.disable()
582
929
583
930
# StopChecker - method
584
StopChecker = dbus.service.method(_interface)(stop_checker)
585
StopChecker.__name__ = "StopChecker"
931
@dbus.service.method(_interface)
932
def StopChecker(self):
933
self.stop_checker()
934
935
## Properties
936
937
# ApprovalPending - property
938
@dbus_service_property(_interface, signature=u"b", access=u"read")
939
def ApprovalPending_dbus_property(self):
940
return dbus.Boolean(bool(self.approvals_pending))
941
942
# ApprovedByDefault - property
943
@dbus_service_property(_interface, signature=u"b",
944
access=u"readwrite")
945
def ApprovedByDefault_dbus_property(self, value=None):
946
if value is None: # get
947
return dbus.Boolean(self.approved_by_default)
948
self.approved_by_default = bool(value)
949
# Emit D-Bus signal
950
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
951
dbus.Boolean(value, variant_level=1))
952
953
# ApprovalDelay - property
954
@dbus_service_property(_interface, signature=u"t",
955
access=u"readwrite")
956
def ApprovalDelay_dbus_property(self, value=None):
957
if value is None: # get
958
return dbus.UInt64(self.approval_delay_milliseconds())
959
self.approval_delay = datetime.timedelta(0, 0, 0, value)
960
# Emit D-Bus signal
961
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
962
dbus.UInt64(value, variant_level=1))
963
964
# ApprovalDuration - property
965
@dbus_service_property(_interface, signature=u"t",
966
access=u"readwrite")
967
def ApprovalDuration_dbus_property(self, value=None):
968
if value is None: # get
969
return dbus.UInt64(self._timedelta_to_milliseconds(
970
self.approval_duration))
971
self.approval_duration = datetime.timedelta(0, 0, 0, value)
972
# Emit D-Bus signal
973
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
974
dbus.UInt64(value, variant_level=1))
975
976
# Name - property
977
@dbus_service_property(_interface, signature=u"s", access=u"read")
978
def Name_dbus_property(self):
979
return dbus.String(self.name)
980
981
# Fingerprint - property
982
@dbus_service_property(_interface, signature=u"s", access=u"read")
983
def Fingerprint_dbus_property(self):
984
return dbus.String(self.fingerprint)
985
986
# Host - property
987
@dbus_service_property(_interface, signature=u"s",
988
access=u"readwrite")
989
def Host_dbus_property(self, value=None):
990
if value is None: # get
991
return dbus.String(self.host)
992
self.host = value
993
# Emit D-Bus signal
994
self.PropertyChanged(dbus.String(u"Host"),
995
dbus.String(value, variant_level=1))
996
997
# Created - property
998
@dbus_service_property(_interface, signature=u"s", access=u"read")
999
def Created_dbus_property(self):
1000
return dbus.String(self._datetime_to_dbus(self.created))
1001
1002
# LastEnabled - property
1003
@dbus_service_property(_interface, signature=u"s", access=u"read")
1004
def LastEnabled_dbus_property(self):
1005
if self.last_enabled is None:
1006
return dbus.String(u"")
1007
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1008
1009
# Enabled - property
1010
@dbus_service_property(_interface, signature=u"b",
1011
access=u"readwrite")
1012
def Enabled_dbus_property(self, value=None):
1013
if value is None: # get
1014
return dbus.Boolean(self.enabled)
1015
if value:
1016
self.enable()
1017
else:
1018
self.disable()
1019
1020
# LastCheckedOK - property
1021
@dbus_service_property(_interface, signature=u"s",
1022
access=u"readwrite")
1023
def LastCheckedOK_dbus_property(self, value=None):
1024
if value is not None:
1025
self.checked_ok()
1026
return
1027
if self.last_checked_ok is None:
1028
return dbus.String(u"")
1029
return dbus.String(self._datetime_to_dbus(self
1030
.last_checked_ok))
1031
1032
# Timeout - property
1033
@dbus_service_property(_interface, signature=u"t",
1034
access=u"readwrite")
1035
def Timeout_dbus_property(self, value=None):
1036
if value is None: # get
1037
return dbus.UInt64(self.timeout_milliseconds())
1038
self.timeout = datetime.timedelta(0, 0, 0, value)
1039
# Emit D-Bus signal
1040
self.PropertyChanged(dbus.String(u"Timeout"),
1041
dbus.UInt64(value, variant_level=1))
1042
if getattr(self, u"disable_initiator_tag", None) is None:
1043
return
1044
# Reschedule timeout
1045
gobject.source_remove(self.disable_initiator_tag)
1046
self.disable_initiator_tag = None
1047
time_to_die = (self.
1048
_timedelta_to_milliseconds((self
1049
.last_checked_ok
1050
+ self.timeout)
1051
- datetime.datetime
1052
.utcnow()))
1053
if time_to_die <= 0:
1054
# The timeout has passed
1055
self.disable()
1056
else:
1057
self.disable_initiator_tag = (gobject.timeout_add
1058
(time_to_die, self.disable))
1059
1060
# Interval - property
1061
@dbus_service_property(_interface, signature=u"t",
1062
access=u"readwrite")
1063
def Interval_dbus_property(self, value=None):
1064
if value is None: # get
1065
return dbus.UInt64(self.interval_milliseconds())
1066
self.interval = datetime.timedelta(0, 0, 0, value)
1067
# Emit D-Bus signal
1068
self.PropertyChanged(dbus.String(u"Interval"),
1069
dbus.UInt64(value, variant_level=1))
1070
if getattr(self, u"checker_initiator_tag", None) is None:
1071
return
1072
# Reschedule checker run
1073
gobject.source_remove(self.checker_initiator_tag)
1074
self.checker_initiator_tag = (gobject.timeout_add
1075
(value, self.start_checker))
1076
self.start_checker() # Start one now, too
1077
1078
# Checker - property
1079
@dbus_service_property(_interface, signature=u"s",
1080
access=u"readwrite")
1081
def Checker_dbus_property(self, value=None):
1082
if value is None: # get
1083
return dbus.String(self.checker_command)
1084
self.checker_command = value
1085
# Emit D-Bus signal
1086
self.PropertyChanged(dbus.String(u"Checker"),
1087
dbus.String(self.checker_command,
1088
variant_level=1))
1089
1090
# CheckerRunning - property
1091
@dbus_service_property(_interface, signature=u"b",
1092
access=u"readwrite")
1093
def CheckerRunning_dbus_property(self, value=None):
1094
if value is None: # get
1095
return dbus.Boolean(self.checker is not None)
1096
if value:
1097
self.start_checker()
1098
else:
1099
self.stop_checker()
1100
1101
# ObjectPath - property
1102
@dbus_service_property(_interface, signature=u"o", access=u"read")
1103
def ObjectPath_dbus_property(self):
1104
return self.dbus_object_path # is already a dbus.ObjectPath
1105
1106
# Secret = property
1107
@dbus_service_property(_interface, signature=u"ay",
1108
access=u"write", byte_arrays=True)
1109
def Secret_dbus_property(self, value):
1110
self.secret = str(value)
586
1111
587
1112
del _interface
588
1113
589
1114
590
def peer_certificate(session):
591
"Return the peer's OpenPGP certificate as a bytestring"
592
# If not an OpenPGP certificate...
593
if (gnutls.library.functions
594
.gnutls_certificate_type_get(session._c_object)
595
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
596
# ...do the normal thing
597
return session.peer_certificate
598
list_size = ctypes.c_uint(1)
599
cert_list = (gnutls.library.functions
600
.gnutls_certificate_get_peers
601
(session._c_object, ctypes.byref(list_size)))
602
if not bool(cert_list) and list_size.value != 0:
603
raise gnutls.errors.GNUTLSError("error getting peer"
604
" certificate")
605
if list_size.value == 0:
606
return None
607
cert = cert_list[0]
608
return ctypes.string_at(cert.data, cert.size)
609
610
611
def fingerprint(openpgp):
612
"Convert an OpenPGP bytestring to a hexdigit fingerprint string"
613
# New GnuTLS "datum" with the OpenPGP public key
614
datum = (gnutls.library.types
615
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
616
ctypes.POINTER
617
(ctypes.c_ubyte)),
618
ctypes.c_uint(len(openpgp))))
619
# New empty GnuTLS certificate
620
crt = gnutls.library.types.gnutls_openpgp_crt_t()
621
(gnutls.library.functions
622
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
623
# Import the OpenPGP public key into the certificate
624
(gnutls.library.functions
625
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
626
gnutls.library.constants
627
.GNUTLS_OPENPGP_FMT_RAW))
628
# Verify the self signature in the key
629
crtverify = ctypes.c_uint()
630
(gnutls.library.functions
631
.gnutls_openpgp_crt_verify_self(crt, 0, ctypes.byref(crtverify)))
632
if crtverify.value != 0:
633
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
634
raise gnutls.errors.CertificateSecurityError("Verify failed")
635
# New buffer for the fingerprint
636
buf = ctypes.create_string_buffer(20)
637
buf_len = ctypes.c_size_t()
638
# Get the fingerprint from the certificate into the buffer
639
(gnutls.library.functions
640
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
641
ctypes.byref(buf_len)))
642
# Deinit the certificate
643
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
644
# Convert the buffer to a Python bytestring
645
fpr = ctypes.string_at(buf, buf_len.value)
646
# Convert the bytestring to hexadecimal notation
647
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
648
return hex_fpr
649
650
651
class TCP_handler(SocketServer.BaseRequestHandler, object):
652
"""A TCP request handler class.
653
Instantiated by IPv6_TCPServer for each request to handle it.
1115
class ProxyClient(object):
1116
def __init__(self, child_pipe, fpr, address):
1117
self._pipe = child_pipe
1118
self._pipe.send(('init', fpr, address))
1119
if not self._pipe.recv():
1120
raise KeyError()
1121
1122
def __getattribute__(self, name):
1123
if(name == '_pipe'):
1124
return super(ProxyClient, self).__getattribute__(name)
1125
self._pipe.send(('getattr', name))
1126
data = self._pipe.recv()
1127
if data[0] == 'data':
1128
return data[1]
1129
if data[0] == 'function':
1130
def func(*args, **kwargs):
1131
self._pipe.send(('funcall', name, args, kwargs))
1132
return self._pipe.recv()[1]
1133
return func
1134
1135
def __setattr__(self, name, value):
1136
if(name == '_pipe'):
1137
return super(ProxyClient, self).__setattr__(name, value)
1138
self._pipe.send(('setattr', name, value))
1139
1140
1141
class ClientHandler(socketserver.BaseRequestHandler, object):
1142
"""A class to handle client connections.
1143
1144
Instantiated once for each connection to handle it.
654
1145
Note: This will run in its own forked process."""
655
1146
656
1147
def handle(self):
657
logger.info(u"TCP connection from: %s",
658
unicode(self.client_address))
659
session = (gnutls.connection
660
.ClientSession(self.request,
661
gnutls.connection
662
.X509Credentials()))
663
664
line = self.request.makefile().readline()
665
logger.debug(u"Protocol version: %r", line)
666
try:
667
if int(line.strip().split()[0]) > 1:
668
raise RuntimeError
669
except (ValueError, IndexError, RuntimeError), error:
670
logger.error(u"Unknown protocol version: %s", error)
671
return
672
673
# Note: gnutls.connection.X509Credentials is really a generic
674
# GnuTLS certificate credentials object so long as no X.509
675
# keys are added to it. Therefore, we can use it here despite
676
# using OpenPGP certificates.
677
678
#priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
679
# "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
680
# "+DHE-DSS"))
681
# Use a fallback default, since this MUST be set.
682
priority = self.server.settings.get("priority", "NORMAL")
683
(gnutls.library.functions
684
.gnutls_priority_set_direct(session._c_object,
685
priority, None))
686
687
try:
688
session.handshake()
689
except gnutls.errors.GNUTLSError, error:
690
logger.warning(u"Handshake failed: %s", error)
691
# Do not run session.bye() here: the session is not
692
# established. Just abandon the request.
693
return
694
logger.debug(u"Handshake succeeded")
695
try:
696
fpr = fingerprint(peer_certificate(session))
697
except (TypeError, gnutls.errors.GNUTLSError), error:
698
logger.warning(u"Bad certificate: %s", error)
699
session.bye()
700
return
701
logger.debug(u"Fingerprint: %s", fpr)
702
for c in self.server.clients:
703
if c.fingerprint == fpr:
704
client = c
705
break
706
else:
707
logger.warning(u"Client not found for fingerprint: %s",
708
fpr)
709
session.bye()
710
return
711
# Have to check if client.still_valid(), since it is possible
712
# that the client timed out while establishing the GnuTLS
713
# session.
714
if not client.still_valid():
715
logger.warning(u"Client %(name)s is invalid",
716
vars(client))
717
session.bye()
718
return
719
## This won't work here, since we're in a fork.
720
# client.checked_ok()
721
sent_size = 0
722
while sent_size < len(client.secret):
723
sent = session.send(client.secret[sent_size:])
724
logger.debug(u"Sent: %d, remaining: %d",
725
sent, len(client.secret)
726
- (sent_size + sent))
727
sent_size += sent
728
session.bye()
729
730
731
class IPv6_TCPServer(SocketServer.ForkingMixIn,
732
SocketServer.TCPServer, object):
733
"""IPv6 TCP server. Accepts 'None' as address and/or port.
1148
with contextlib.closing(self.server.child_pipe) as child_pipe:
1149
logger.info(u"TCP connection from: %s",
1150
unicode(self.client_address))
1151
logger.debug(u"Pipe FD: %d",
1152
self.server.child_pipe.fileno())
1153
1154
session = (gnutls.connection
1155
.ClientSession(self.request,
1156
gnutls.connection
1157
.X509Credentials()))
1158
1159
# Note: gnutls.connection.X509Credentials is really a
1160
# generic GnuTLS certificate credentials object so long as
1161
# no X.509 keys are added to it. Therefore, we can use it
1162
# here despite using OpenPGP certificates.
1163
1164
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1165
# u"+AES-256-CBC", u"+SHA1",
1166
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1167
# u"+DHE-DSS"))
1168
# Use a fallback default, since this MUST be set.
1169
priority = self.server.gnutls_priority
1170
if priority is None:
1171
priority = u"NORMAL"
1172
(gnutls.library.functions
1173
.gnutls_priority_set_direct(session._c_object,
1174
priority, None))
1175
1176
# Start communication using the Mandos protocol
1177
# Get protocol number
1178
line = self.request.makefile().readline()
1179
logger.debug(u"Protocol version: %r", line)
1180
try:
1181
if int(line.strip().split()[0]) > 1:
1182
raise RuntimeError
1183
except (ValueError, IndexError, RuntimeError), error:
1184
logger.error(u"Unknown protocol version: %s", error)
1185
return
1186
1187
# Start GnuTLS connection
1188
try:
1189
session.handshake()
1190
except gnutls.errors.GNUTLSError, error:
1191
logger.warning(u"Handshake failed: %s", error)
1192
# Do not run session.bye() here: the session is not
1193
# established. Just abandon the request.
1194
return
1195
logger.debug(u"Handshake succeeded")
1196
1197
approval_required = False
1198
try:
1199
try:
1200
fpr = self.fingerprint(self.peer_certificate
1201
(session))
1202
except (TypeError, gnutls.errors.GNUTLSError), error:
1203
logger.warning(u"Bad certificate: %s", error)
1204
return
1205
logger.debug(u"Fingerprint: %s", fpr)
1206
1207
try:
1208
client = ProxyClient(child_pipe, fpr,
1209
self.client_address)
1210
except KeyError:
1211
return
1212
1213
if client.approval_delay:
1214
delay = client.approval_delay
1215
client.approvals_pending += 1
1216
approval_required = True
1217
1218
while True:
1219
if not client.enabled:
1220
logger.warning(u"Client %s is disabled",
1221
client.name)
1222
if self.server.use_dbus:
1223
# Emit D-Bus signal
1224
client.Rejected("Disabled")
1225
return
1226
1227
if client._approved or not client.approval_delay:
1228
#We are approved or approval is disabled
1229
break
1230
elif client._approved is None:
1231
logger.info(u"Client %s needs approval",
1232
client.name)
1233
if self.server.use_dbus:
1234
# Emit D-Bus signal
1235
client.NeedApproval(
1236
client.approval_delay_milliseconds(),
1237
client.approved_by_default)
1238
else:
1239
logger.warning(u"Client %s was not approved",
1240
client.name)
1241
if self.server.use_dbus:
1242
# Emit D-Bus signal
1243
client.Rejected("Denied")
1244
return
1245
1246
#wait until timeout or approved
1247
#x = float(client._timedelta_to_milliseconds(delay))
1248
time = datetime.datetime.now()
1249
client.changedstate.acquire()
1250
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1251
client.changedstate.release()
1252
time2 = datetime.datetime.now()
1253
if (time2 - time) >= delay:
1254
if not client.approved_by_default:
1255
logger.warning("Client %s timed out while"
1256
" waiting for approval",
1257
client.name)
1258
if self.server.use_dbus:
1259
# Emit D-Bus signal
1260
client.Rejected("Approval timed out")
1261
return
1262
else:
1263
break
1264
else:
1265
delay -= time2 - time
1266
1267
sent_size = 0
1268
while sent_size < len(client.secret):
1269
try:
1270
sent = session.send(client.secret[sent_size:])
1271
except (gnutls.errors.GNUTLSError), error:
1272
logger.warning("gnutls send failed")
1273
return
1274
logger.debug(u"Sent: %d, remaining: %d",
1275
sent, len(client.secret)
1276
- (sent_size + sent))
1277
sent_size += sent
1278
1279
logger.info(u"Sending secret to %s", client.name)
1280
# bump the timeout as if seen
1281
client.checked_ok()
1282
if self.server.use_dbus:
1283
# Emit D-Bus signal
1284
client.GotSecret()
1285
1286
finally:
1287
if approval_required:
1288
client.approvals_pending -= 1
1289
try:
1290
session.bye()
1291
except (gnutls.errors.GNUTLSError), error:
1292
logger.warning("GnuTLS bye failed")
1293
1294
@staticmethod
1295
def peer_certificate(session):
1296
"Return the peer's OpenPGP certificate as a bytestring"
1297
# If not an OpenPGP certificate...
1298
if (gnutls.library.functions
1299
.gnutls_certificate_type_get(session._c_object)
1300
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1301
# ...do the normal thing
1302
return session.peer_certificate
1303
list_size = ctypes.c_uint(1)
1304
cert_list = (gnutls.library.functions
1305
.gnutls_certificate_get_peers
1306
(session._c_object, ctypes.byref(list_size)))
1307
if not bool(cert_list) and list_size.value != 0:
1308
raise gnutls.errors.GNUTLSError(u"error getting peer"
1309
u" certificate")
1310
if list_size.value == 0:
1311
return None
1312
cert = cert_list[0]
1313
return ctypes.string_at(cert.data, cert.size)
1314
1315
@staticmethod
1316
def fingerprint(openpgp):
1317
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1318
# New GnuTLS "datum" with the OpenPGP public key
1319
datum = (gnutls.library.types
1320
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1321
ctypes.POINTER
1322
(ctypes.c_ubyte)),
1323
ctypes.c_uint(len(openpgp))))
1324
# New empty GnuTLS certificate
1325
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1326
(gnutls.library.functions
1327
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1328
# Import the OpenPGP public key into the certificate
1329
(gnutls.library.functions
1330
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1331
gnutls.library.constants
1332
.GNUTLS_OPENPGP_FMT_RAW))
1333
# Verify the self signature in the key
1334
crtverify = ctypes.c_uint()
1335
(gnutls.library.functions
1336
.gnutls_openpgp_crt_verify_self(crt, 0,
1337
ctypes.byref(crtverify)))
1338
if crtverify.value != 0:
1339
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1340
raise (gnutls.errors.CertificateSecurityError
1341
(u"Verify failed"))
1342
# New buffer for the fingerprint
1343
buf = ctypes.create_string_buffer(20)
1344
buf_len = ctypes.c_size_t()
1345
# Get the fingerprint from the certificate into the buffer
1346
(gnutls.library.functions
1347
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1348
ctypes.byref(buf_len)))
1349
# Deinit the certificate
1350
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1351
# Convert the buffer to a Python bytestring
1352
fpr = ctypes.string_at(buf, buf_len.value)
1353
# Convert the bytestring to hexadecimal notation
1354
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1355
return hex_fpr
1356
1357
1358
class MultiprocessingMixIn(object):
1359
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1360
def sub_process_main(self, request, address):
1361
try:
1362
self.finish_request(request, address)
1363
except:
1364
self.handle_error(request, address)
1365
self.close_request(request)
1366
1367
def process_request(self, request, address):
1368
"""Start a new process to process the request."""
1369
multiprocessing.Process(target = self.sub_process_main,
1370
args = (request, address)).start()
1371
1372
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1373
""" adds a pipe to the MixIn """
1374
def process_request(self, request, client_address):
1375
"""Overrides and wraps the original process_request().
1376
1377
This function creates a new pipe in self.pipe
1378
"""
1379
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1380
1381
super(MultiprocessingMixInWithPipe,
1382
self).process_request(request, client_address)
1383
self.child_pipe.close()
1384
self.add_pipe(parent_pipe)
1385
1386
def add_pipe(self, parent_pipe):
1387
"""Dummy function; override as necessary"""
1388
pass
1389
1390
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1391
socketserver.TCPServer, object):
1392
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1393
734
1394
Attributes:
735
settings: Server settings
736
clients: Set() of Client objects
737
1395
enabled: Boolean; whether this server is activated yet
1396
interface: None or a network interface name (string)
1397
use_ipv6: Boolean; to use IPv6 or not
738
1398
"""
739
address_family = socket.AF_INET6
740
def __init__(self, *args, **kwargs):
741
if "settings" in kwargs:
742
self.settings = kwargs["settings"]
743
del kwargs["settings"]
744
if "clients" in kwargs:
745
self.clients = kwargs["clients"]
746
del kwargs["clients"]
747
self.enabled = False
748
super(IPv6_TCPServer, self).__init__(*args, **kwargs)
1399
def __init__(self, server_address, RequestHandlerClass,
1400
interface=None, use_ipv6=True):
1401
self.interface = interface
1402
if use_ipv6:
1403
self.address_family = socket.AF_INET6
1404
socketserver.TCPServer.__init__(self, server_address,
1405
RequestHandlerClass)
749
1406
def server_bind(self):
750
1407
"""This overrides the normal server_bind() function
751
1408
to bind to an interface if one was specified, and also NOT to
752
1409
bind to an address or port if they were not specified."""
753
if self.settings["interface"]:
754
# 25 is from /usr/include/asm-i486/socket.h
755
SO_BINDTODEVICE = getattr(socket, "SO_BINDTODEVICE", 25)
756
try:
757
self.socket.setsockopt(socket.SOL_SOCKET,
758
SO_BINDTODEVICE,
759
self.settings["interface"])
760
except socket.error, error:
761
if error[0] == errno.EPERM:
762
logger.error(u"No permission to"
763
u" bind to interface %s",
764
self.settings["interface"])
765
else:
766
raise error
1410
if self.interface is not None:
1411
if SO_BINDTODEVICE is None:
1412
logger.error(u"SO_BINDTODEVICE does not exist;"
1413
u" cannot bind to interface %s",
1414
self.interface)
1415
else:
1416
try:
1417
self.socket.setsockopt(socket.SOL_SOCKET,
1418
SO_BINDTODEVICE,
1419
str(self.interface
1420
+ u'\0'))
1421
except socket.error, error:
1422
if error[0] == errno.EPERM:
1423
logger.error(u"No permission to"
1424
u" bind to interface %s",
1425
self.interface)
1426
elif error[0] == errno.ENOPROTOOPT:
1427
logger.error(u"SO_BINDTODEVICE not available;"
1428
u" cannot bind to interface %s",
1429
self.interface)
1430
else:
1431
raise
767
1432
# Only bind(2) the socket if we really need to.
768
1433
if self.server_address[0] or self.server_address[1]:
769
1434
if not self.server_address[0]:
770
in6addr_any = "::"
771
self.server_address = (in6addr_any,
1435
if self.address_family == socket.AF_INET6:
1436
any_address = u"::" # in6addr_any
1437
else:
1438
any_address = socket.INADDR_ANY
1439
self.server_address = (any_address,
772
1440
self.server_address[1])
773
1441
elif not self.server_address[1]:
774
1442
self.server_address = (self.server_address[0],
775
1443
0)
776
# if self.settings["interface"]:
1444
# if self.interface:
777
1445
# self.server_address = (self.server_address[0],
778
1446
# 0, # port
779
1447
# 0, # flowinfo
780
1448
# if_nametoindex
781
# (self.settings
782
# ["interface"]))
783
return super(IPv6_TCPServer, self).server_bind()
1449
# (self.interface))
1450
return socketserver.TCPServer.server_bind(self)
1451
1452
1453
class MandosServer(IPv6_TCPServer):
1454
"""Mandos server.
1455
1456
Attributes:
1457
clients: set of Client objects
1458
gnutls_priority GnuTLS priority string
1459
use_dbus: Boolean; to emit D-Bus signals or not
1460
1461
Assumes a gobject.MainLoop event loop.
1462
"""
1463
def __init__(self, server_address, RequestHandlerClass,
1464
interface=None, use_ipv6=True, clients=None,
1465
gnutls_priority=None, use_dbus=True):
1466
self.enabled = False
1467
self.clients = clients
1468
if self.clients is None:
1469
self.clients = set()
1470
self.use_dbus = use_dbus
1471
self.gnutls_priority = gnutls_priority
1472
IPv6_TCPServer.__init__(self, server_address,
1473
RequestHandlerClass,
1474
interface = interface,
1475
use_ipv6 = use_ipv6)
784
1476
def server_activate(self):
785
1477
if self.enabled:
786
return super(IPv6_TCPServer, self).server_activate()
1478
return socketserver.TCPServer.server_activate(self)
787
1479
def enable(self):
788
1480
self.enabled = True
1481
def add_pipe(self, parent_pipe):
1482
# Call "handle_ipc" for both data and EOF events
1483
gobject.io_add_watch(parent_pipe.fileno(),
1484
gobject.IO_IN | gobject.IO_HUP,
1485
functools.partial(self.handle_ipc,
1486
parent_pipe = parent_pipe))
1487
1488
def handle_ipc(self, source, condition, parent_pipe=None,
1489
client_object=None):
1490
condition_names = {
1491
gobject.IO_IN: u"IN", # There is data to read.
1492
gobject.IO_OUT: u"OUT", # Data can be written (without
1493
# blocking).
1494
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1495
gobject.IO_ERR: u"ERR", # Error condition.
1496
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1497
# broken, usually for pipes and
1498
# sockets).
1499
}
1500
conditions_string = ' | '.join(name
1501
for cond, name in
1502
condition_names.iteritems()
1503
if cond & condition)
1504
# error or the other end of multiprocessing.Pipe has closed
1505
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1506
return False
1507
1508
# Read a request from the child
1509
request = parent_pipe.recv()
1510
command = request[0]
1511
1512
if command == 'init':
1513
fpr = request[1]
1514
address = request[2]
1515
1516
for c in self.clients:
1517
if c.fingerprint == fpr:
1518
client = c
1519
break
1520
else:
1521
logger.warning(u"Client not found for fingerprint: %s, ad"
1522
u"dress: %s", fpr, address)
1523
if self.use_dbus:
1524
# Emit D-Bus signal
1525
mandos_dbus_service.ClientNotFound(fpr, address[0])
1526
parent_pipe.send(False)
1527
return False
1528
1529
gobject.io_add_watch(parent_pipe.fileno(),
1530
gobject.IO_IN | gobject.IO_HUP,
1531
functools.partial(self.handle_ipc,
1532
parent_pipe = parent_pipe,
1533
client_object = client))
1534
parent_pipe.send(True)
1535
# remove the old hook in favor of the new above hook on same fileno
1536
return False
1537
if command == 'funcall':
1538
funcname = request[1]
1539
args = request[2]
1540
kwargs = request[3]
1541
1542
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1543
1544
if command == 'getattr':
1545
attrname = request[1]
1546
if callable(client_object.__getattribute__(attrname)):
1547
parent_pipe.send(('function',))
1548
else:
1549
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1550
1551
if command == 'setattr':
1552
attrname = request[1]
1553
value = request[2]
1554
setattr(client_object, attrname, value)
1555
1556
return True
789
1557
790
1558
791
1559
def string_to_delta(interval):
792
1560
"""Parse a string and return a datetime.timedelta
793
794
>>> string_to_delta('7d')
1561
1562
>>> string_to_delta(u'7d')
795
1563
datetime.timedelta(7)
796
>>> string_to_delta('60s')
1564
>>> string_to_delta(u'60s')
797
1565
datetime.timedelta(0, 60)
798
>>> string_to_delta('60m')
1566
>>> string_to_delta(u'60m')
799
1567
datetime.timedelta(0, 3600)
800
>>> string_to_delta('24h')
1568
>>> string_to_delta(u'24h')
801
1569
datetime.timedelta(1)
802
1570
>>> string_to_delta(u'1w')
803
1571
datetime.timedelta(7)
804
>>> string_to_delta('5m 30s')
1572
>>> string_to_delta(u'5m 30s')
805
1573
datetime.timedelta(0, 330)
806
1574
"""
807
1575
timevalue = datetime.timedelta(0)
820
1588
elif suffix == u"w":
821
1589
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
822
1590
else:
823
raise ValueError
824
except (ValueError, IndexError):
825
raise ValueError
1591
raise ValueError(u"Unknown suffix %r" % suffix)
1592
except (ValueError, IndexError), e:
1593
raise ValueError(e.message)
826
1594
timevalue += delta
827
1595
return timevalue
828
1596
829
1597
830
def server_state_changed(state):
831
"""Derived from the Avahi example code"""
832
if state == avahi.SERVER_COLLISION:
833
logger.error(u"Zeroconf server name collision")
834
service.remove()
835
elif state == avahi.SERVER_RUNNING:
836
service.add()
837
838
839
def entry_group_state_changed(state, error):
840
"""Derived from the Avahi example code"""
841
logger.debug(u"Avahi state change: %i", state)
842
843
if state == avahi.ENTRY_GROUP_ESTABLISHED:
844
logger.debug(u"Zeroconf service established.")
845
elif state == avahi.ENTRY_GROUP_COLLISION:
846
logger.warning(u"Zeroconf service name collision.")
847
service.rename()
848
elif state == avahi.ENTRY_GROUP_FAILURE:
849
logger.critical(u"Avahi: Error in group state changed %s",
850
unicode(error))
851
raise AvahiGroupError(u"State changed: %s" % unicode(error))
852
853
1598
def if_nametoindex(interface):
854
"""Call the C function if_nametoindex(), or equivalent"""
1599
"""Call the C function if_nametoindex(), or equivalent
1600
1601
Note: This function cannot accept a unicode string."""
855
1602
global if_nametoindex
856
1603
try:
857
1604
if_nametoindex = (ctypes.cdll.LoadLibrary
858
(ctypes.util.find_library("c"))
1605
(ctypes.util.find_library(u"c"))
859
1606
.if_nametoindex)
860
1607
except (OSError, AttributeError):
861
if "struct" not in sys.modules:
862
import struct
863
if "fcntl" not in sys.modules:
864
import fcntl
1608
logger.warning(u"Doing if_nametoindex the hard way")
865
1609
def if_nametoindex(interface):
866
1610
"Get an interface index the hard way, i.e. using fcntl()"
867
1611
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
868
with closing(socket.socket()) as s:
1612
with contextlib.closing(socket.socket()) as s:
869
1613
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
870
struct.pack("16s16x", interface))
871
interface_index = struct.unpack("I", ifreq[16:20])[0]
1614
struct.pack(str(u"16s16x"),
1615
interface))
1616
interface_index = struct.unpack(str(u"I"),
1617
ifreq[16:20])[0]
872
1618
return interface_index
873
1619
return if_nametoindex(interface)
874
1620
875
1621
876
1622
def daemon(nochdir = False, noclose = False):
877
1623
"""See daemon(3). Standard BSD Unix function.
1624
878
1625
This should really exist as os.daemon, but it doesn't (yet)."""
879
1626
if os.fork():
880
1627
sys.exit()
881
1628
os.setsid()
882
1629
if not nochdir:
883
os.chdir("/")
1630
os.chdir(u"/")
884
1631
if os.fork():
885
1632
sys.exit()
886
1633
if not noclose:
888
1635
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
889
1636
if not stat.S_ISCHR(os.fstat(null).st_mode):
890
1637
raise OSError(errno.ENODEV,
891
"/dev/null not a character device")
1638
u"%s not a character device"
1639
% os.path.devnull)
892
1640
os.dup2(null, sys.stdin.fileno())
893
1641
os.dup2(null, sys.stdout.fileno())
894
1642
os.dup2(null, sys.stderr.fileno())
897
1645
898
1646
899
1647
def main():
1648
1649
##################################################################
1650
# Parsing of options, both command line and config file
1651
900
1652
parser = optparse.OptionParser(version = "%%prog %s" % version)
901
parser.add_option("-i", "--interface", type="string",
902
metavar="IF", help="Bind to interface IF")
903
parser.add_option("-a", "--address", type="string",
904
help="Address to listen for requests on")
905
parser.add_option("-p", "--port", type="int",
906
help="Port number to receive requests on")
907
parser.add_option("--check", action="store_true",
908
help="Run self-test")
909
parser.add_option("--debug", action="store_true",
910
help="Debug mode; run in foreground and log to"
911
" terminal")
912
parser.add_option("--priority", type="string", help="GnuTLS"
913
" priority string (see GnuTLS documentation)")
914
parser.add_option("--servicename", type="string", metavar="NAME",
915
help="Zeroconf service name")
916
parser.add_option("--configdir", type="string",
917
default="/etc/mandos", metavar="DIR",
918
help="Directory to search for configuration"
919
" files")
920
parser.add_option("--no-dbus", action="store_false",
921
dest="use_dbus",
922
help="Do not provide D-Bus system bus"
923
" interface")
1653
parser.add_option("-i", u"--interface", type=u"string",
1654
metavar="IF", help=u"Bind to interface IF")
1655
parser.add_option("-a", u"--address", type=u"string",
1656
help=u"Address to listen for requests on")
1657
parser.add_option("-p", u"--port", type=u"int",
1658
help=u"Port number to receive requests on")
1659
parser.add_option("--check", action=u"store_true",
1660
help=u"Run self-test")
1661
parser.add_option("--debug", action=u"store_true",
1662
help=u"Debug mode; run in foreground and log to"
1663
u" terminal")
1664
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1665
help=u"Debug level for stdout output")
1666
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1667
u" priority string (see GnuTLS documentation)")
1668
parser.add_option("--servicename", type=u"string",
1669
metavar=u"NAME", help=u"Zeroconf service name")
1670
parser.add_option("--configdir", type=u"string",
1671
default=u"/etc/mandos", metavar=u"DIR",
1672
help=u"Directory to search for configuration"
1673
u" files")
1674
parser.add_option("--no-dbus", action=u"store_false",
1675
dest=u"use_dbus", help=u"Do not provide D-Bus"
1676
u" system bus interface")
1677
parser.add_option("--no-ipv6", action=u"store_false",
1678
dest=u"use_ipv6", help=u"Do not use IPv6")
924
1679
options = parser.parse_args()[0]
925
1680
926
1681
if options.check:
929
1684
sys.exit()
930
1685
931
1686
# Default values for config file for server-global settings
932
server_defaults = { "interface": "",
933
"address": "",
934
"port": "",
935
"debug": "False",
936
"priority":
937
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
938
"servicename": "Mandos",
939
"use_dbus": "True",
1687
server_defaults = { u"interface": u"",
1688
u"address": u"",
1689
u"port": u"",
1690
u"debug": u"False",
1691
u"priority":
1692
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1693
u"servicename": u"Mandos",
1694
u"use_dbus": u"True",
1695
u"use_ipv6": u"True",
1696
u"debuglevel": u"",
940
1697
}
941
1698
942
1699
# Parse config file for server-global settings
943
server_config = ConfigParser.SafeConfigParser(server_defaults)
1700
server_config = configparser.SafeConfigParser(server_defaults)
944
1701
del server_defaults
945
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1702
server_config.read(os.path.join(options.configdir,
1703
u"mandos.conf"))
946
1704
# Convert the SafeConfigParser object to a dict
947
1705
server_settings = server_config.defaults()
948
1706
# Use the appropriate methods on the non-string config options
949
server_settings["debug"] = server_config.getboolean("DEFAULT",
950
"debug")
951
server_settings["use_dbus"] = server_config.getboolean("DEFAULT",
952
"use_dbus")
1707
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1708
server_settings[option] = server_config.getboolean(u"DEFAULT",
1709
option)
953
1710
if server_settings["port"]:
954
server_settings["port"] = server_config.getint("DEFAULT",
955
"port")
1711
server_settings["port"] = server_config.getint(u"DEFAULT",
1712
u"port")
956
1713
del server_config
957
1714
958
1715
# Override the settings from the config file with command line
959
1716
# options, if set.
960
for option in ("interface", "address", "port", "debug",
961
"priority", "servicename", "configdir",
962
"use_dbus"):
1717
for option in (u"interface", u"address", u"port", u"debug",
1718
u"priority", u"servicename", u"configdir",
1719
u"use_dbus", u"use_ipv6", u"debuglevel"):
963
1720
value = getattr(options, option)
964
1721
if value is not None:
965
1722
server_settings[option] = value
966
1723
del options
1724
# Force all strings to be unicode
1725
for option in server_settings.keys():
1726
if type(server_settings[option]) is str:
1727
server_settings[option] = unicode(server_settings[option])
967
1728
# Now we have our good server settings in "server_settings"
968
1729
1730
##################################################################
1731
969
1732
# For convenience
970
debug = server_settings["debug"]
971
use_dbus = server_settings["use_dbus"]
972
973
if not debug:
974
syslogger.setLevel(logging.WARNING)
975
console.setLevel(logging.WARNING)
976
977
if server_settings["servicename"] != "Mandos":
1733
debug = server_settings[u"debug"]
1734
debuglevel = server_settings[u"debuglevel"]
1735
use_dbus = server_settings[u"use_dbus"]
1736
use_ipv6 = server_settings[u"use_ipv6"]
1737
1738
if server_settings[u"servicename"] != u"Mandos":
978
1739
syslogger.setFormatter(logging.Formatter
979
('Mandos (%s): %%(levelname)s:'
980
' %%(message)s'
981
% server_settings["servicename"]))
1740
(u'Mandos (%s) [%%(process)d]:'
1741
u' %%(levelname)s: %%(message)s'
1742
% server_settings[u"servicename"]))
982
1743
983
1744
# Parse config file with clients
984
client_defaults = { "timeout": "1h",
985
"interval": "5m",
986
"checker": "fping -q -- %%(host)s",
987
"host": "",
1745
client_defaults = { u"timeout": u"1h",
1746
u"interval": u"5m",
1747
u"checker": u"fping -q -- %%(host)s",
1748
u"host": u"",
1749
u"approval_delay": u"0s",
1750
u"approval_duration": u"1s",
988
1751
}
989
client_config = ConfigParser.SafeConfigParser(client_defaults)
990
client_config.read(os.path.join(server_settings["configdir"],
991
"clients.conf"))
992
993
clients = Set()
994
tcp_server = IPv6_TCPServer((server_settings["address"],
995
server_settings["port"]),
996
TCP_handler,
997
settings=server_settings,
998
clients=clients)
999
pidfilename = "/var/run/mandos.pid"
1000
try:
1001
pidfile = open(pidfilename, "w")
1002
except IOError, error:
1003
logger.error("Could not open file %r", pidfilename)
1004
1005
try:
1006
uid = pwd.getpwnam("_mandos").pw_uid
1007
gid = pwd.getpwnam("_mandos").pw_gid
1752
client_config = configparser.SafeConfigParser(client_defaults)
1753
client_config.read(os.path.join(server_settings[u"configdir"],
1754
u"clients.conf"))
1755
1756
global mandos_dbus_service
1757
mandos_dbus_service = None
1758
1759
tcp_server = MandosServer((server_settings[u"address"],
1760
server_settings[u"port"]),
1761
ClientHandler,
1762
interface=(server_settings[u"interface"]
1763
or None),
1764
use_ipv6=use_ipv6,
1765
gnutls_priority=
1766
server_settings[u"priority"],
1767
use_dbus=use_dbus)
1768
if not debug:
1769
pidfilename = u"/var/run/mandos.pid"
1770
try:
1771
pidfile = open(pidfilename, u"w")
1772
except IOError:
1773
logger.error(u"Could not open file %r", pidfilename)
1774
1775
try:
1776
uid = pwd.getpwnam(u"_mandos").pw_uid
1777
gid = pwd.getpwnam(u"_mandos").pw_gid
1008
1778
except KeyError:
1009
1779
try:
1010
uid = pwd.getpwnam("mandos").pw_uid
1011
gid = pwd.getpwnam("mandos").pw_gid
1780
uid = pwd.getpwnam(u"mandos").pw_uid
1781
gid = pwd.getpwnam(u"mandos").pw_gid
1012
1782
except KeyError:
1013
1783
try:
1014
uid = pwd.getpwnam("nobody").pw_uid
1015
gid = pwd.getpwnam("nogroup").pw_gid
1784
uid = pwd.getpwnam(u"nobody").pw_uid
1785
gid = pwd.getpwnam(u"nobody").pw_gid
1016
1786
except KeyError:
1017
1787
uid = 65534
1018
1788
gid = 65534
1019
1789
try:
1790
os.setgid(gid)
1020
1791
os.setuid(uid)
1021
os.setgid(gid)
1022
1792
except OSError, error:
1023
1793
if error[0] != errno.EPERM:
1024
1794
raise error
1025
1795
1026
global service
1027
service = AvahiService(name = server_settings["servicename"],
1028
servicetype = "_mandos._tcp", )
1029
if server_settings["interface"]:
1030
service.interface = (if_nametoindex
1031
(server_settings["interface"]))
1796
if not debug and not debuglevel:
1797
syslogger.setLevel(logging.WARNING)
1798
console.setLevel(logging.WARNING)
1799
if debuglevel:
1800
level = getattr(logging, debuglevel.upper())
1801
syslogger.setLevel(level)
1802
console.setLevel(level)
1803
1804
if debug:
1805
# Enable all possible GnuTLS debugging
1806
1807
# "Use a log level over 10 to enable all debugging options."
1808
# - GnuTLS manual
1809
gnutls.library.functions.gnutls_global_set_log_level(11)
1810
1811
@gnutls.library.types.gnutls_log_func
1812
def debug_gnutls(level, string):
1813
logger.debug(u"GnuTLS: %s", string[:-1])
1814
1815
(gnutls.library.functions
1816
.gnutls_global_set_log_function(debug_gnutls))
1817
1818
# Redirect stdin so all checkers get /dev/null
1819
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1820
os.dup2(null, sys.stdin.fileno())
1821
if null > 2:
1822
os.close(null)
1823
else:
1824
# No console logging
1825
logger.removeHandler(console)
1826
1032
1827
1033
1828
global main_loop
1034
global bus
1035
global server
1036
1829
# From the Avahi example code
1037
1830
DBusGMainLoop(set_as_default=True )
1038
1831
main_loop = gobject.MainLoop()
1039
1832
bus = dbus.SystemBus()
1040
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
1041
avahi.DBUS_PATH_SERVER),
1042
avahi.DBUS_INTERFACE_SERVER)
1043
1833
# End of Avahi example code
1044
1834
if use_dbus:
1045
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
1046
1047
clients.update(Set(Client(name = section,
1048
config
1049
= dict(client_config.items(section)),
1050
use_dbus = use_dbus)
1051
for section in client_config.sections()))
1052
if not clients:
1053
logger.warning(u"No clients defined")
1054
1055
if debug:
1056
# Redirect stdin so all checkers get /dev/null
1057
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1058
os.dup2(null, sys.stdin.fileno())
1059
if null > 2:
1060
os.close(null)
1061
else:
1062
# No console logging
1063
logger.removeHandler(console)
1835
try:
1836
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1837
bus, do_not_queue=True)
1838
except dbus.exceptions.NameExistsException, e:
1839
logger.error(unicode(e) + u", disabling D-Bus")
1840
use_dbus = False
1841
server_settings[u"use_dbus"] = False
1842
tcp_server.use_dbus = False
1843
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1844
service = AvahiService(name = server_settings[u"servicename"],
1845
servicetype = u"_mandos._tcp",
1846
protocol = protocol, bus = bus)
1847
if server_settings["interface"]:
1848
service.interface = (if_nametoindex
1849
(str(server_settings[u"interface"])))
1850
1851
if not debug:
1064
1852
# Close all input and output, do double fork, etc.
1065
1853
daemon()
1066
1067
try:
1068
pid = os.getpid()
1069
pidfile.write(str(pid) + "\n")
1070
pidfile.close()
1071
del pidfile
1072
except IOError:
1073
logger.error(u"Could not write to file %r with PID %d",
1074
pidfilename, pid)
1075
except NameError:
1076
# "pidfile" was never created
1077
pass
1078
del pidfilename
1079
1080
def cleanup():
1081
"Cleanup function; run on exit"
1082
global group
1083
# From the Avahi example code
1084
if not group is None:
1085
group.Free()
1086
group = None
1087
# End of Avahi example code
1088
1089
while clients:
1090
client = clients.pop()
1091
client.disable_hook = None
1092
client.disable()
1093
1094
atexit.register(cleanup)
1095
1854
1855
global multiprocessing_manager
1856
multiprocessing_manager = multiprocessing.Manager()
1857
1858
client_class = Client
1859
if use_dbus:
1860
client_class = functools.partial(ClientDBus, bus = bus)
1861
def client_config_items(config, section):
1862
special_settings = {
1863
"approved_by_default":
1864
lambda: config.getboolean(section,
1865
"approved_by_default"),
1866
}
1867
for name, value in config.items(section):
1868
try:
1869
yield (name, special_settings[name]())
1870
except KeyError:
1871
yield (name, value)
1872
1873
tcp_server.clients.update(set(
1874
client_class(name = section,
1875
config= dict(client_config_items(
1876
client_config, section)))
1877
for section in client_config.sections()))
1878
if not tcp_server.clients:
1879
logger.warning(u"No clients defined")
1880
1096
1881
if not debug:
1882
try:
1883
with pidfile:
1884
pid = os.getpid()
1885
pidfile.write(str(pid) + "\n")
1886
del pidfile
1887
except IOError:
1888
logger.error(u"Could not write to file %r with PID %d",
1889
pidfilename, pid)
1890
except NameError:
1891
# "pidfile" was never created
1892
pass
1893
del pidfilename
1894
1097
1895
signal.signal(signal.SIGINT, signal.SIG_IGN)
1896
1098
1897
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1099
1898
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1100
1899
1101
1900
if use_dbus:
1102
class MandosServer(dbus.service.Object):
1901
class MandosDBusService(dbus.service.Object):
1103
1902
"""A D-Bus proxy object"""
1104
1903
def __init__(self):
1105
dbus.service.Object.__init__(self, bus, "/")
1904
dbus.service.Object.__init__(self, bus, u"/")
1106
1905
_interface = u"se.bsnet.fukt.Mandos"
1107
1906
1108
@dbus.service.signal(_interface, signature="oa{sv}")
1109
def ClientAdded(self, objpath, properties):
1110
"D-Bus signal"
1111
pass
1112
1113
@dbus.service.signal(_interface, signature="os")
1907
@dbus.service.signal(_interface, signature=u"o")
1908
def ClientAdded(self, objpath):
1909
"D-Bus signal"
1910
pass
1911
1912
@dbus.service.signal(_interface, signature=u"ss")
1913
def ClientNotFound(self, fingerprint, address):
1914
"D-Bus signal"
1915
pass
1916
1917
@dbus.service.signal(_interface, signature=u"os")
1114
1918
def ClientRemoved(self, objpath, name):
1115
1919
"D-Bus signal"
1116
1920
pass
1117
1921
1118
@dbus.service.method(_interface, out_signature="ao")
1922
@dbus.service.method(_interface, out_signature=u"ao")
1119
1923
def GetAllClients(self):
1120
1924
"D-Bus method"
1121
return dbus.Array(c.dbus_object_path for c in clients)
1925
return dbus.Array(c.dbus_object_path
1926
for c in tcp_server.clients)
1122
1927
1123
@dbus.service.method(_interface, out_signature="a{oa{sv}}")
1928
@dbus.service.method(_interface,
1929
out_signature=u"a{oa{sv}}")
1124
1930
def GetAllClientsWithProperties(self):
1125
1931
"D-Bus method"
1126
1932
return dbus.Dictionary(
1127
((c.dbus_object_path, c.GetAllProperties())
1128
for c in clients),
1129
signature="oa{sv}")
1933
((c.dbus_object_path, c.GetAll(u""))
1934
for c in tcp_server.clients),
1935
signature=u"oa{sv}")
1130
1936
1131
@dbus.service.method(_interface, in_signature="o")
1937
@dbus.service.method(_interface, in_signature=u"o")
1132
1938
def RemoveClient(self, object_path):
1133
1939
"D-Bus method"
1134
for c in clients:
1940
for c in tcp_server.clients:
1135
1941
if c.dbus_object_path == object_path:
1136
clients.remove(c)
1942
tcp_server.clients.remove(c)
1943
c.remove_from_connection()
1137
1944
# Don't signal anything except ClientRemoved
1138
c.use_dbus = False
1139
c.disable()
1945
c.disable(quiet=True)
1140
1946
# Emit D-Bus signal
1141
1947
self.ClientRemoved(object_path, c.name)
1142
1948
return
1143
raise KeyError
1949
raise KeyError(object_path)
1144
1950
1145
1951
del _interface
1146
1952
1147
mandos_server = MandosServer()
1148
1149
for client in clients:
1953
mandos_dbus_service = MandosDBusService()
1954
1955
def cleanup():
1956
"Cleanup function; run on exit"
1957
service.cleanup()
1958
1959
while tcp_server.clients:
1960
client = tcp_server.clients.pop()
1961
if use_dbus:
1962
client.remove_from_connection()
1963
client.disable_hook = None
1964
# Don't signal anything except ClientRemoved
1965
client.disable(quiet=True)
1966
if use_dbus:
1967
# Emit D-Bus signal
1968
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1969
client.name)
1970
1971
atexit.register(cleanup)
1972
1973
for client in tcp_server.clients:
1150
1974
if use_dbus:
1151
1975
# Emit D-Bus signal
1152
mandos_server.ClientAdded(client.dbus_object_path,
1153
client.GetAllProperties())
1976
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1154
1977
client.enable()
1155
1978
1156
1979
tcp_server.enable()
1158
1981
1159
1982
# Find out what port we got
1160
1983
service.port = tcp_server.socket.getsockname()[1]
1161
logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
1162
u" scope_id %d" % tcp_server.socket.getsockname())
1984
if use_ipv6:
1985
logger.info(u"Now listening on address %r, port %d,"
1986
" flowinfo %d, scope_id %d"
1987
% tcp_server.socket.getsockname())
1988
else: # IPv4
1989
logger.info(u"Now listening on address %r, port %d"
1990
% tcp_server.socket.getsockname())
1163
1991
1164
1992
#service.interface = tcp_server.socket.getsockname()[3]
1165
1993
1166
1994
try:
1167
1995
# From the Avahi example code
1168
server.connect_to_signal("StateChanged", server_state_changed)
1169
1996
try:
1170
server_state_changed(server.GetState())
1997
service.activate()
1171
1998
except dbus.exceptions.DBusException, error:
1172
1999
logger.critical(u"DBusException: %s", error)
2000
cleanup()
1173
2001
sys.exit(1)
1174
2002
# End of Avahi example code
1175
2003
1182
2010
main_loop.run()
1183
2011
except AvahiError, error:
1184
2012
logger.critical(u"AvahiError: %s", error)
2013
cleanup()
1185
2014
sys.exit(1)
1186
2015
except KeyboardInterrupt:
1187
2016
if debug:
1188
print
2017
print >> sys.stderr
2018
logger.debug(u"Server received KeyboardInterrupt")
2019
logger.debug(u"Server exiting")
2020
# Must run before the D-Bus bus name gets deregistered
2021
cleanup()
1189
2022
1190
2023
if __name__ == '__main__':
1191
2024
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0