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- Committer: Teddy Hogeborn
- Date: 2009-01-31 10:33:17 UTC
- mfrom: (24.1.129 mandos)
- Revision ID: teddy@fukt.bsnet.se-20090131103317-wzqvyr532sjcjt7u
Merge from Björn:
* mandos-ctl: New option "--remove-client". Only default to listing
clients if no clients were given on the command line.
* plugins.d/mandos-client.c: Lower kernel log level while bringing up
network interface. New option "--delay"
to control the maximum delay to wait for
running interface.
* plugins.d/mandos-client.xml (SYNOPSIS, OPTIONS): New option
"--delay".
* mandos-ctl: New option "--remove-client". Only default to listing
clients if no clients were given on the command line.
* plugins.d/mandos-client.c: Lower kernel log level while bringing up
network interface. New option "--delay"
to control the maximum delay to wait for
running interface.
* plugins.d/mandos-client.xml (SYNOPSIS, OPTIONS): New option
"--delay".
- files removed:
- DBUS-API
- debian/source
- files modified:
- .bzrignore
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", "remove", "server_state_changed",
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
# "AvahiService" class, and some lines in "main".
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".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
14
# Copyright © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
31
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
#
33
33
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
34
from __future__ import division, with_statement, absolute_import
36
35
37
import SocketServer as socketserver
36
import SocketServer
38
37
import socket
39
import argparse
38
import optparse
40
39
import datetime
41
40
import errno
42
41
import gnutls.crypto
45
44
import gnutls.library.functions
46
45
import gnutls.library.constants
47
46
import gnutls.library.types
48
import ConfigParser as configparser
47
import ConfigParser
49
48
import sys
50
49
import re
51
50
import os
52
51
import signal
52
from sets import Set
53
53
import subprocess
54
54
import atexit
55
55
import stat
56
56
import logging
57
57
import logging.handlers
58
58
import pwd
59
import contextlib
60
import struct
61
import fcntl
62
import functools
63
import cPickle as pickle
64
import multiprocessing
59
from contextlib import closing
65
60
66
61
import dbus
67
62
import dbus.service
70
65
from dbus.mainloop.glib import DBusGMainLoop
71
66
import ctypes
72
67
import ctypes.util
73
import xml.dom.minidom
74
import inspect
75
76
try:
77
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
78
except AttributeError:
79
try:
80
from IN import SO_BINDTODEVICE
81
except ImportError:
82
SO_BINDTODEVICE = None
83
84
85
version = "1.3.1"
86
87
#logger = logging.getLogger('mandos')
68
69
version = "1.0.5"
70
88
71
logger = logging.Logger('mandos')
89
72
syslogger = (logging.handlers.SysLogHandler
90
73
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
74
address = "/dev/log"))
92
75
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
76
('Mandos: %(levelname)s: %(message)s'))
95
77
logger.addHandler(syslogger)
96
78
97
79
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
99
' %(levelname)s:'
80
console.setFormatter(logging.Formatter('%(name)s: %(levelname)s:'
100
81
' %(message)s'))
101
82
logger.addHandler(console)
102
83
116
97
117
98
class AvahiService(object):
118
99
"""An Avahi (Zeroconf) service.
119
120
100
Attributes:
121
101
interface: integer; avahi.IF_UNSPEC or an interface index.
122
102
Used to optionally bind to the specified interface.
130
110
max_renames: integer; maximum number of renames
131
111
rename_count: integer; counter so we only rename after collisions
132
112
a sensible number of times
133
group: D-Bus Entry Group
134
server: D-Bus Server
135
bus: dbus.SystemBus()
136
113
"""
137
114
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
138
115
servicetype = None, port = None, TXT = None,
139
domain = "", host = "", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
116
domain = "", host = "", max_renames = 32768):
141
117
self.interface = interface
142
118
self.name = name
143
119
self.type = servicetype
147
123
self.host = host
148
124
self.rename_count = 0
149
125
self.max_renames = max_renames
150
self.protocol = protocol
151
self.group = None # our entry group
152
self.server = None
153
self.bus = bus
154
self.entry_group_state_changed_match = None
155
126
def rename(self):
156
127
"""Derived from the Avahi example code"""
157
128
if self.rename_count >= self.max_renames:
158
logger.critical("No suitable Zeroconf service name found"
159
" after %i retries, exiting.",
129
logger.critical(u"No suitable Zeroconf service name found"
130
u" after %i retries, exiting.",
160
131
self.rename_count)
161
raise AvahiServiceError("Too many renames")
162
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
163
logger.info("Changing Zeroconf service name to %r ...",
164
self.name)
132
raise AvahiServiceError(u"Too many renames")
133
self.name = server.GetAlternativeServiceName(self.name)
134
logger.info(u"Changing Zeroconf service name to %r ...",
135
str(self.name))
165
136
syslogger.setFormatter(logging.Formatter
166
('Mandos (%s) [%%(process)d]:'
167
' %%(levelname)s: %%(message)s'
168
% self.name))
137
('Mandos (%s): %%(levelname)s:'
138
' %%(message)s' % self.name))
169
139
self.remove()
170
try:
171
self.add()
172
except dbus.exceptions.DBusException as error:
173
logger.critical("DBusException: %s", error)
174
self.cleanup()
175
os._exit(1)
140
self.add()
176
141
self.rename_count += 1
177
142
def remove(self):
178
143
"""Derived from the Avahi example code"""
179
if self.entry_group_state_changed_match is not None:
180
self.entry_group_state_changed_match.remove()
181
self.entry_group_state_changed_match = None
182
if self.group is not None:
183
self.group.Reset()
144
if group is not None:
145
group.Reset()
184
146
def add(self):
185
147
"""Derived from the Avahi example code"""
186
self.remove()
187
if self.group is None:
188
self.group = dbus.Interface(
189
self.bus.get_object(avahi.DBUS_NAME,
190
self.server.EntryGroupNew()),
191
avahi.DBUS_INTERFACE_ENTRY_GROUP)
192
self.entry_group_state_changed_match = (
193
self.group.connect_to_signal(
194
'StateChanged', self .entry_group_state_changed))
195
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
196
self.name, self.type)
197
self.group.AddService(
198
self.interface,
199
self.protocol,
200
dbus.UInt32(0), # flags
201
self.name, self.type,
202
self.domain, self.host,
203
dbus.UInt16(self.port),
204
avahi.string_array_to_txt_array(self.TXT))
205
self.group.Commit()
206
def entry_group_state_changed(self, state, error):
207
"""Derived from the Avahi example code"""
208
logger.debug("Avahi entry group state change: %i", state)
209
210
if state == avahi.ENTRY_GROUP_ESTABLISHED:
211
logger.debug("Zeroconf service established.")
212
elif state == avahi.ENTRY_GROUP_COLLISION:
213
logger.info("Zeroconf service name collision.")
214
self.rename()
215
elif state == avahi.ENTRY_GROUP_FAILURE:
216
logger.critical("Avahi: Error in group state changed %s",
217
unicode(error))
218
raise AvahiGroupError("State changed: %s"
219
% unicode(error))
220
def cleanup(self):
221
"""Derived from the Avahi example code"""
222
if self.group is not None:
223
try:
224
self.group.Free()
225
except (dbus.exceptions.UnknownMethodException,
226
dbus.exceptions.DBusException) as e:
227
pass
228
self.group = None
229
self.remove()
230
def server_state_changed(self, state, error=None):
231
"""Derived from the Avahi example code"""
232
logger.debug("Avahi server state change: %i", state)
233
bad_states = { avahi.SERVER_INVALID:
234
"Zeroconf server invalid",
235
avahi.SERVER_REGISTERING: None,
236
avahi.SERVER_COLLISION:
237
"Zeroconf server name collision",
238
avahi.SERVER_FAILURE:
239
"Zeroconf server failure" }
240
if state in bad_states:
241
if bad_states[state] is not None:
242
if error is None:
243
logger.error(bad_states[state])
244
else:
245
logger.error(bad_states[state] + ": %r", error)
246
self.cleanup()
247
elif state == avahi.SERVER_RUNNING:
248
self.add()
249
else:
250
if error is None:
251
logger.debug("Unknown state: %r", state)
252
else:
253
logger.debug("Unknown state: %r: %r", state, error)
254
def activate(self):
255
"""Derived from the Avahi example code"""
256
if self.server is None:
257
self.server = dbus.Interface(
258
self.bus.get_object(avahi.DBUS_NAME,
259
avahi.DBUS_PATH_SERVER,
260
follow_name_owner_changes=True),
261
avahi.DBUS_INTERFACE_SERVER)
262
self.server.connect_to_signal("StateChanged",
263
self.server_state_changed)
264
self.server_state_changed(self.server.GetState())
265
266
267
def _timedelta_to_milliseconds(td):
268
"Convert a datetime.timedelta() to milliseconds"
269
return ((td.days * 24 * 60 * 60 * 1000)
270
+ (td.seconds * 1000)
271
+ (td.microseconds // 1000))
272
273
class Client(object):
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)
156
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):
274
179
"""A representation of a client host served by this server.
275
276
180
Attributes:
277
_approved: bool(); 'None' if not yet approved/disapproved
278
approval_delay: datetime.timedelta(); Time to wait for approval
279
approval_duration: datetime.timedelta(); Duration of one approval
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)
280
195
checker: subprocess.Popen(); a running checker process used
281
196
to see if the client lives.
282
197
'None' if no process is running.
283
checker_callback_tag: a gobject event source tag, or None
284
checker_command: string; External command which is run to check
285
if client lives. %() expansions are done at
198
checker_initiator_tag: a gobject event source tag, or None
199
disable_initiator_tag: - '' -
200
checker_callback_tag: - '' -
201
checker_command: string; External command which is run to check if
202
client lives. %() expansions are done at
286
203
runtime with vars(self) as dict, so that for
287
204
instance %(name)s can be used in the command.
288
checker_initiator_tag: a gobject event source tag, or None
289
created: datetime.datetime(); (UTC) object creation
290
current_checker_command: string; current running checker_command
291
disable_hook: If set, called by disable() as disable_hook(self)
292
disable_initiator_tag: a gobject event source tag, or None
293
enabled: bool()
294
fingerprint: string (40 or 32 hexadecimal digits); used to
295
uniquely identify the client
296
host: string; available for use by the checker command
297
interval: datetime.timedelta(); How often to start a new checker
298
last_approval_request: datetime.datetime(); (UTC) or None
299
last_checked_ok: datetime.datetime(); (UTC) or None
300
last_enabled: datetime.datetime(); (UTC)
301
name: string; from the config file, used in log messages and
302
D-Bus identifiers
303
secret: bytestring; sent verbatim (over TLS) to client
304
timeout: datetime.timedelta(); How long from last_checked_ok
305
until this client is disabled
306
extended_timeout: extra long timeout when password has been sent
307
runtime_expansions: Allowed attributes for runtime expansion.
308
expires: datetime.datetime(); time (UTC) when a client will be
309
disabled, or None
205
use_dbus: bool(); Whether to provide D-Bus interface and signals
206
dbus_object_path: dbus.ObjectPath ; only set if self.use_dbus
310
207
"""
311
312
runtime_expansions = ("approval_delay", "approval_duration",
313
"created", "enabled", "fingerprint",
314
"host", "interval", "last_checked_ok",
315
"last_enabled", "name", "timeout")
316
317
208
def timeout_milliseconds(self):
318
209
"Return the 'timeout' attribute in milliseconds"
319
return _timedelta_to_milliseconds(self.timeout)
320
321
def extended_timeout_milliseconds(self):
322
"Return the 'extended_timeout' attribute in milliseconds"
323
return _timedelta_to_milliseconds(self.extended_timeout)
210
return ((self.timeout.days * 24 * 60 * 60 * 1000)
211
+ (self.timeout.seconds * 1000)
212
+ (self.timeout.microseconds // 1000))
324
213
325
214
def interval_milliseconds(self):
326
215
"Return the 'interval' attribute in milliseconds"
327
return _timedelta_to_milliseconds(self.interval)
328
329
def approval_delay_milliseconds(self):
330
return _timedelta_to_milliseconds(self.approval_delay)
331
332
def __init__(self, name = None, disable_hook=None, config=None):
216
return ((self.interval.days * 24 * 60 * 60 * 1000)
217
+ (self.interval.seconds * 1000)
218
+ (self.interval.microseconds // 1000))
219
220
def __init__(self, name = None, disable_hook=None, config=None,
221
use_dbus=True):
333
222
"""Note: the 'checker' key in 'config' sets the
334
223
'checker_command' attribute and *not* the 'checker'
335
224
attribute."""
336
225
self.name = name
337
226
if config is None:
338
227
config = {}
339
logger.debug("Creating client %r", self.name)
228
logger.debug(u"Creating client %r", self.name)
229
self.use_dbus = False # During __init__
340
230
# Uppercase and remove spaces from fingerprint for later
341
231
# comparison purposes with return value from the fingerprint()
342
232
# function
343
233
self.fingerprint = (config["fingerprint"].upper()
344
.replace(" ", ""))
345
logger.debug(" Fingerprint: %s", self.fingerprint)
234
.replace(u" ", u""))
235
logger.debug(u" Fingerprint: %s", self.fingerprint)
346
236
if "secret" in config:
347
self.secret = config["secret"].decode("base64")
237
self.secret = config["secret"].decode(u"base64")
348
238
elif "secfile" in config:
349
with open(os.path.expanduser(os.path.expandvars
350
(config["secfile"])),
351
"rb") as secfile:
239
with closing(open(os.path.expanduser
240
(os.path.expandvars
241
(config["secfile"])))) as secfile:
352
242
self.secret = secfile.read()
353
243
else:
354
raise TypeError("No secret or secfile for client %s"
244
raise TypeError(u"No secret or secfile for client %s"
355
245
% self.name)
356
246
self.host = config.get("host", "")
357
247
self.created = datetime.datetime.utcnow()
358
248
self.enabled = False
359
self.last_approval_request = None
360
249
self.last_enabled = None
361
250
self.last_checked_ok = None
362
251
self.timeout = string_to_delta(config["timeout"])
363
self.extended_timeout = string_to_delta(config["extended_timeout"])
364
252
self.interval = string_to_delta(config["interval"])
365
253
self.disable_hook = disable_hook
366
254
self.checker = None
367
255
self.checker_initiator_tag = None
368
256
self.disable_initiator_tag = None
369
self.expires = None
370
257
self.checker_callback_tag = None
371
258
self.checker_command = config["checker"]
372
self.current_checker_command = None
373
259
self.last_connect = None
374
self._approved = None
375
self.approved_by_default = config.get("approved_by_default",
376
True)
377
self.approvals_pending = 0
378
self.approval_delay = string_to_delta(
379
config["approval_delay"])
380
self.approval_duration = string_to_delta(
381
config["approval_duration"])
382
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
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)
383
269
384
def send_changedstate(self):
385
self.changedstate.acquire()
386
self.changedstate.notify_all()
387
self.changedstate.release()
388
389
270
def enable(self):
390
271
"""Start this client's checker and timeout hooks"""
391
if getattr(self, "enabled", False):
392
# Already enabled
393
return
394
self.send_changedstate()
272
self.last_enabled = datetime.datetime.utcnow()
395
273
# Schedule a new checker to be started an 'interval' from now,
396
274
# and every interval from then on.
397
275
self.checker_initiator_tag = (gobject.timeout_add
398
276
(self.interval_milliseconds(),
399
277
self.start_checker))
278
# Also start a new checker *right now*.
279
self.start_checker()
400
280
# Schedule a disable() when 'timeout' has passed
401
self.expires = datetime.datetime.utcnow() + self.timeout
402
281
self.disable_initiator_tag = (gobject.timeout_add
403
282
(self.timeout_milliseconds(),
404
283
self.disable))
405
284
self.enabled = True
406
self.last_enabled = datetime.datetime.utcnow()
407
# Also start a new checker *right now*.
408
self.start_checker()
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)))
409
292
410
def disable(self, quiet=True):
293
def disable(self):
411
294
"""Disable this client."""
412
295
if not getattr(self, "enabled", False):
413
296
return False
414
if not quiet:
415
self.send_changedstate()
416
if not quiet:
417
logger.info("Disabling client %s", self.name)
297
logger.info(u"Disabling client %s", self.name)
418
298
if getattr(self, "disable_initiator_tag", False):
419
299
gobject.source_remove(self.disable_initiator_tag)
420
300
self.disable_initiator_tag = None
421
self.expires = None
422
301
if getattr(self, "checker_initiator_tag", False):
423
302
gobject.source_remove(self.checker_initiator_tag)
424
303
self.checker_initiator_tag = None
426
305
if self.disable_hook:
427
306
self.disable_hook(self)
428
307
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))
429
312
# Do not run this again if called by a gobject.timeout_add
430
313
return False
431
314
437
320
"""The checker has completed, so take appropriate actions."""
438
321
self.checker_callback_tag = None
439
322
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))
440
327
if os.WIFEXITED(condition):
441
328
exitstatus = os.WEXITSTATUS(condition)
442
329
if exitstatus == 0:
443
logger.info("Checker for %(name)s succeeded",
330
logger.info(u"Checker for %(name)s succeeded",
444
331
vars(self))
445
332
self.checked_ok()
446
333
else:
447
logger.info("Checker for %(name)s failed",
334
logger.info(u"Checker for %(name)s failed",
448
335
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))
449
341
else:
450
logger.warning("Checker for %(name)s crashed?",
342
logger.warning(u"Checker for %(name)s crashed?",
451
343
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))
452
349
453
def checked_ok(self, timeout=None):
350
def checked_ok(self):
454
351
"""Bump up the timeout for this client.
455
456
352
This should only be called when the client has been seen,
457
353
alive and well.
458
354
"""
459
if timeout is None:
460
timeout = self.timeout
461
355
self.last_checked_ok = datetime.datetime.utcnow()
462
356
gobject.source_remove(self.disable_initiator_tag)
463
self.expires = datetime.datetime.utcnow() + timeout
464
357
self.disable_initiator_tag = (gobject.timeout_add
465
(_timedelta_to_milliseconds(timeout),
358
(self.timeout_milliseconds(),
466
359
self.disable))
467
468
def need_approval(self):
469
self.last_approval_request = datetime.datetime.utcnow()
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)))
470
366
471
367
def start_checker(self):
472
368
"""Start a new checker subprocess if one is not running.
473
474
369
If a checker already exists, leave it running and do
475
370
nothing."""
476
371
# The reason for not killing a running checker is that if we
479
374
# client would inevitably timeout, since no checker would get
480
375
# a chance to run to completion. If we instead leave running
481
376
# checkers alone, the checker would have to take more time
482
# than 'timeout' for the client to be disabled, which is as it
483
# should be.
484
485
# If a checker exists, make sure it is not a zombie
486
try:
487
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
488
except (AttributeError, OSError) as error:
489
if (isinstance(error, OSError)
490
and error.errno != errno.ECHILD):
491
raise error
492
else:
493
if pid:
494
logger.warning("Checker was a zombie")
495
gobject.source_remove(self.checker_callback_tag)
496
self.checker_callback(pid, status,
497
self.current_checker_command)
498
# Start a new checker if needed
377
# than 'timeout' for the client to be declared invalid, which
378
# is as it should be.
499
379
if self.checker is None:
500
380
try:
501
381
# In case checker_command has exactly one % operator
502
382
command = self.checker_command % self.host
503
383
except TypeError:
504
384
# Escape attributes for the shell
505
escaped_attrs = dict(
506
(attr,
507
re.escape(unicode(str(getattr(self, attr, "")),
508
errors=
509
'replace')))
510
for attr in
511
self.runtime_expansions)
512
385
escaped_attrs = dict((key, re.escape(str(val)))
386
for key, val in
387
vars(self).iteritems())
513
388
try:
514
389
command = self.checker_command % escaped_attrs
515
except TypeError as error:
516
logger.error('Could not format string "%s":'
517
' %s', self.checker_command, error)
390
except TypeError, error:
391
logger.error(u'Could not format string "%s":'
392
u' %s', self.checker_command, error)
518
393
return True # Try again later
519
self.current_checker_command = command
520
394
try:
521
logger.info("Starting checker %r for %s",
395
logger.info(u"Starting checker %r for %s",
522
396
command, self.name)
523
397
# We don't need to redirect stdout and stderr, since
524
398
# in normal mode, that is already done by daemon(),
527
401
self.checker = subprocess.Popen(command,
528
402
close_fds=True,
529
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))
530
410
self.checker_callback_tag = (gobject.child_watch_add
531
411
(self.checker.pid,
532
412
self.checker_callback,
533
413
data=command))
534
# The checker may have completed before the gobject
535
# watch was added. Check for this.
536
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
537
if pid:
538
gobject.source_remove(self.checker_callback_tag)
539
self.checker_callback(pid, status, command)
540
except OSError as error:
541
logger.error("Failed to start subprocess: %s",
414
except OSError, error:
415
logger.error(u"Failed to start subprocess: %s",
542
416
error)
543
417
# Re-run this periodically if run by gobject.timeout_add
544
418
return True
550
424
self.checker_callback_tag = None
551
425
if getattr(self, "checker", None) is None:
552
426
return
553
logger.debug("Stopping checker for %(name)s", vars(self))
427
logger.debug(u"Stopping checker for %(name)s", vars(self))
554
428
try:
555
429
os.kill(self.checker.pid, signal.SIGTERM)
556
#time.sleep(0.5)
430
#os.sleep(0.5)
557
431
#if self.checker.poll() is None:
558
432
# os.kill(self.checker.pid, signal.SIGKILL)
559
except OSError as error:
433
except OSError, error:
560
434
if error.errno != errno.ESRCH: # No such process
561
435
raise
562
436
self.checker = None
563
564
565
def dbus_service_property(dbus_interface, signature="v",
566
access="readwrite", byte_arrays=False):
567
"""Decorators for marking methods of a DBusObjectWithProperties to
568
become properties on the D-Bus.
569
570
The decorated method will be called with no arguments by "Get"
571
and with one argument by "Set".
572
573
The parameters, where they are supported, are the same as
574
dbus.service.method, except there is only "signature", since the
575
type from Get() and the type sent to Set() is the same.
576
"""
577
# Encoding deeply encoded byte arrays is not supported yet by the
578
# "Set" method, so we fail early here:
579
if byte_arrays and signature != "ay":
580
raise ValueError("Byte arrays not supported for non-'ay'"
581
" signature %r" % signature)
582
def decorator(func):
583
func._dbus_is_property = True
584
func._dbus_interface = dbus_interface
585
func._dbus_signature = signature
586
func._dbus_access = access
587
func._dbus_name = func.__name__
588
if func._dbus_name.endswith("_dbus_property"):
589
func._dbus_name = func._dbus_name[:-14]
590
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
591
return func
592
return decorator
593
594
595
class DBusPropertyException(dbus.exceptions.DBusException):
596
"""A base class for D-Bus property-related exceptions
597
"""
598
def __unicode__(self):
599
return unicode(str(self))
600
601
602
class DBusPropertyAccessException(DBusPropertyException):
603
"""A property's access permissions disallows an operation.
604
"""
605
pass
606
607
608
class DBusPropertyNotFound(DBusPropertyException):
609
"""An attempt was made to access a non-existing property.
610
"""
611
pass
612
613
614
class DBusObjectWithProperties(dbus.service.Object):
615
"""A D-Bus object with properties.
616
617
Classes inheriting from this can use the dbus_service_property
618
decorator to expose methods as D-Bus properties. It exposes the
619
standard Get(), Set(), and GetAll() methods on the D-Bus.
620
"""
621
622
@staticmethod
623
def _is_dbus_property(obj):
624
return getattr(obj, "_dbus_is_property", False)
625
626
def _get_all_dbus_properties(self):
627
"""Returns a generator of (name, attribute) pairs
628
"""
629
return ((prop._dbus_name, prop)
630
for name, prop in
631
inspect.getmembers(self, self._is_dbus_property))
632
633
def _get_dbus_property(self, interface_name, property_name):
634
"""Returns a bound method if one exists which is a D-Bus
635
property with the specified name and interface.
636
"""
637
for name in (property_name,
638
property_name + "_dbus_property"):
639
prop = getattr(self, name, None)
640
if (prop is None
641
or not self._is_dbus_property(prop)
642
or prop._dbus_name != property_name
643
or (interface_name and prop._dbus_interface
644
and interface_name != prop._dbus_interface)):
645
continue
646
return prop
647
# No such property
648
raise DBusPropertyNotFound(self.dbus_object_path + ":"
649
+ interface_name + "."
650
+ property_name)
651
652
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
653
out_signature="v")
654
def Get(self, interface_name, property_name):
655
"""Standard D-Bus property Get() method, see D-Bus standard.
656
"""
657
prop = self._get_dbus_property(interface_name, property_name)
658
if prop._dbus_access == "write":
659
raise DBusPropertyAccessException(property_name)
660
value = prop()
661
if not hasattr(value, "variant_level"):
662
return value
663
return type(value)(value, variant_level=value.variant_level+1)
664
665
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
666
def Set(self, interface_name, property_name, value):
667
"""Standard D-Bus property Set() method, see D-Bus standard.
668
"""
669
prop = self._get_dbus_property(interface_name, property_name)
670
if prop._dbus_access == "read":
671
raise DBusPropertyAccessException(property_name)
672
if prop._dbus_get_args_options["byte_arrays"]:
673
# The byte_arrays option is not supported yet on
674
# signatures other than "ay".
675
if prop._dbus_signature != "ay":
676
raise ValueError
677
value = dbus.ByteArray(''.join(unichr(byte)
678
for byte in value))
679
prop(value)
680
681
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
682
out_signature="a{sv}")
683
def GetAll(self, interface_name):
684
"""Standard D-Bus property GetAll() method, see D-Bus
685
standard.
686
687
Note: Will not include properties with access="write".
688
"""
689
all = {}
690
for name, prop in self._get_all_dbus_properties():
691
if (interface_name
692
and interface_name != prop._dbus_interface):
693
# Interface non-empty but did not match
694
continue
695
# Ignore write-only properties
696
if prop._dbus_access == "write":
697
continue
698
value = prop()
699
if not hasattr(value, "variant_level"):
700
all[name] = value
701
continue
702
all[name] = type(value)(value, variant_level=
703
value.variant_level+1)
704
return dbus.Dictionary(all, signature="sv")
705
706
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
707
out_signature="s",
708
path_keyword='object_path',
709
connection_keyword='connection')
710
def Introspect(self, object_path, connection):
711
"""Standard D-Bus method, overloaded to insert property tags.
712
"""
713
xmlstring = dbus.service.Object.Introspect(self, object_path,
714
connection)
715
try:
716
document = xml.dom.minidom.parseString(xmlstring)
717
def make_tag(document, name, prop):
718
e = document.createElement("property")
719
e.setAttribute("name", name)
720
e.setAttribute("type", prop._dbus_signature)
721
e.setAttribute("access", prop._dbus_access)
722
return e
723
for if_tag in document.getElementsByTagName("interface"):
724
for tag in (make_tag(document, name, prop)
725
for name, prop
726
in self._get_all_dbus_properties()
727
if prop._dbus_interface
728
== if_tag.getAttribute("name")):
729
if_tag.appendChild(tag)
730
# Add the names to the return values for the
731
# "org.freedesktop.DBus.Properties" methods
732
if (if_tag.getAttribute("name")
733
== "org.freedesktop.DBus.Properties"):
734
for cn in if_tag.getElementsByTagName("method"):
735
if cn.getAttribute("name") == "Get":
736
for arg in cn.getElementsByTagName("arg"):
737
if (arg.getAttribute("direction")
738
== "out"):
739
arg.setAttribute("name", "value")
740
elif cn.getAttribute("name") == "GetAll":
741
for arg in cn.getElementsByTagName("arg"):
742
if (arg.getAttribute("direction")
743
== "out"):
744
arg.setAttribute("name", "props")
745
xmlstring = document.toxml("utf-8")
746
document.unlink()
747
except (AttributeError, xml.dom.DOMException,
748
xml.parsers.expat.ExpatError) as error:
749
logger.error("Failed to override Introspection method",
750
error)
751
return xmlstring
752
753
754
def datetime_to_dbus (dt, variant_level=0):
755
"""Convert a UTC datetime.datetime() to a D-Bus type."""
756
if dt is None:
757
return dbus.String("", variant_level = variant_level)
758
return dbus.String(dt.isoformat(),
759
variant_level=variant_level)
760
761
762
class ClientDBus(Client, DBusObjectWithProperties):
763
"""A Client class using D-Bus
764
765
Attributes:
766
dbus_object_path: dbus.ObjectPath
767
bus: dbus.SystemBus()
768
"""
769
770
runtime_expansions = (Client.runtime_expansions
771
+ ("dbus_object_path",))
772
773
# dbus.service.Object doesn't use super(), so we can't either.
774
775
def __init__(self, bus = None, *args, **kwargs):
776
self._approvals_pending = 0
777
self.bus = bus
778
Client.__init__(self, *args, **kwargs)
779
# Only now, when this client is initialized, can it show up on
780
# the D-Bus
781
client_object_name = unicode(self.name).translate(
782
{ord("."): ord("_"),
783
ord("-"): ord("_")})
784
self.dbus_object_path = (dbus.ObjectPath
785
("/clients/" + client_object_name))
786
DBusObjectWithProperties.__init__(self, self.bus,
787
self.dbus_object_path)
788
789
def notifychangeproperty(transform_func,
790
dbus_name, type_func=lambda x: x,
791
variant_level=1):
792
""" Modify a variable so that its a property that announce its
793
changes to DBus.
794
transform_fun: Function that takes a value and transform it to
795
DBus type.
796
dbus_name: DBus name of the variable
797
type_func: Function that transform the value before sending it
798
to DBus
799
variant_level: DBus variant level. default: 1
800
"""
801
real_value = [None,]
802
def setter(self, value):
803
old_value = real_value[0]
804
real_value[0] = value
805
if hasattr(self, "dbus_object_path"):
806
if type_func(old_value) != type_func(real_value[0]):
807
dbus_value = transform_func(type_func(real_value[0]),
808
variant_level)
809
self.PropertyChanged(dbus.String(dbus_name),
810
dbus_value)
811
812
return property(lambda self: real_value[0], setter)
813
814
815
expires = notifychangeproperty(datetime_to_dbus, "Expires")
816
approvals_pending = notifychangeproperty(dbus.Boolean,
817
"ApprovalPending",
818
type_func = bool)
819
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
820
last_enabled = notifychangeproperty(datetime_to_dbus,
821
"LastEnabled")
822
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
823
type_func = lambda checker: checker is not None)
824
last_checked_ok = notifychangeproperty(datetime_to_dbus,
825
"LastCheckedOK")
826
last_approval_request = notifychangeproperty(datetime_to_dbus,
827
"LastApprovalRequest")
828
approved_by_default = notifychangeproperty(dbus.Boolean,
829
"ApprovedByDefault")
830
approval_delay = notifychangeproperty(dbus.UInt16, "ApprovalDelay",
831
type_func = _timedelta_to_milliseconds)
832
approval_duration = notifychangeproperty(dbus.UInt16, "ApprovalDuration",
833
type_func = _timedelta_to_milliseconds)
834
host = notifychangeproperty(dbus.String, "Host")
835
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
836
type_func = _timedelta_to_milliseconds)
837
extended_timeout = notifychangeproperty(dbus.UInt16, "ExtendedTimeout",
838
type_func = _timedelta_to_milliseconds)
839
interval = notifychangeproperty(dbus.UInt16, "Interval",
840
type_func = _timedelta_to_milliseconds)
841
checker_command = notifychangeproperty(dbus.String, "Checker")
842
843
del notifychangeproperty
844
845
def __del__(self, *args, **kwargs):
846
try:
847
self.remove_from_connection()
848
except LookupError:
849
pass
850
if hasattr(DBusObjectWithProperties, "__del__"):
851
DBusObjectWithProperties.__del__(self, *args, **kwargs)
852
Client.__del__(self, *args, **kwargs)
853
854
def checker_callback(self, pid, condition, command,
855
*args, **kwargs):
856
self.checker_callback_tag = None
857
self.checker = None
858
if os.WIFEXITED(condition):
859
exitstatus = os.WEXITSTATUS(condition)
860
# Emit D-Bus signal
861
self.CheckerCompleted(dbus.Int16(exitstatus),
862
dbus.Int64(condition),
863
dbus.String(command))
864
else:
865
# Emit D-Bus signal
866
self.CheckerCompleted(dbus.Int16(-1),
867
dbus.Int64(condition),
868
dbus.String(command))
869
870
return Client.checker_callback(self, pid, condition, command,
871
*args, **kwargs)
872
873
def start_checker(self, *args, **kwargs):
874
old_checker = self.checker
875
if self.checker is not None:
876
old_checker_pid = self.checker.pid
877
else:
878
old_checker_pid = None
879
r = Client.start_checker(self, *args, **kwargs)
880
# Only if new checker process was started
881
if (self.checker is not None
882
and old_checker_pid != self.checker.pid):
883
# Emit D-Bus signal
884
self.CheckerStarted(self.current_checker_command)
885
return r
886
887
def _reset_approved(self):
888
self._approved = None
889
return False
890
891
def approve(self, value=True):
892
self.send_changedstate()
893
self._approved = value
894
gobject.timeout_add(_timedelta_to_milliseconds
895
(self.approval_duration),
896
self._reset_approved)
897
898
899
## D-Bus methods, signals & properties
900
_interface = "se.bsnet.fukt.Mandos.Client"
901
902
## Signals
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
452
_interface = u"se.bsnet.fukt.Mandos.Client"
453
454
# CheckedOK - method
455
CheckedOK = dbus.service.method(_interface)(checked_ok)
456
CheckedOK.__name__ = "CheckedOK"
903
457
904
458
# CheckerCompleted - signal
905
459
@dbus.service.signal(_interface, signature="nxs")
913
467
"D-Bus signal"
914
468
pass
915
469
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
916
517
# PropertyChanged - signal
917
518
@dbus.service.signal(_interface, signature="sv")
918
519
def PropertyChanged(self, property, value):
919
520
"D-Bus signal"
920
521
pass
921
522
922
# GotSecret - signal
923
@dbus.service.signal(_interface)
924
def GotSecret(self):
925
"""D-Bus signal
926
Is sent after a successful transfer of secret from the Mandos
927
server to mandos-client
928
"""
929
pass
930
931
# Rejected - signal
932
@dbus.service.signal(_interface, signature="s")
933
def Rejected(self, reason):
934
"D-Bus signal"
935
pass
936
937
# NeedApproval - signal
938
@dbus.service.signal(_interface, signature="tb")
939
def NeedApproval(self, timeout, default):
940
"D-Bus signal"
941
return self.need_approval()
942
943
## Methods
944
945
# Approve - method
946
@dbus.service.method(_interface, in_signature="b")
947
def Approve(self, value):
948
self.approve(value)
949
950
# CheckedOK - method
951
@dbus.service.method(_interface)
952
def CheckedOK(self):
953
self.checked_ok()
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)))
954
566
955
567
# Enable - method
956
@dbus.service.method(_interface)
957
def Enable(self):
958
"D-Bus method"
959
self.enable()
568
Enable = dbus.service.method(_interface)(enable)
569
Enable.__name__ = "Enable"
960
570
961
571
# StartChecker - method
962
572
@dbus.service.method(_interface)
971
581
self.disable()
972
582
973
583
# StopChecker - method
974
@dbus.service.method(_interface)
975
def StopChecker(self):
976
self.stop_checker()
977
978
## Properties
979
980
# ApprovalPending - property
981
@dbus_service_property(_interface, signature="b", access="read")
982
def ApprovalPending_dbus_property(self):
983
return dbus.Boolean(bool(self.approvals_pending))
984
985
# ApprovedByDefault - property
986
@dbus_service_property(_interface, signature="b",
987
access="readwrite")
988
def ApprovedByDefault_dbus_property(self, value=None):
989
if value is None: # get
990
return dbus.Boolean(self.approved_by_default)
991
self.approved_by_default = bool(value)
992
993
# ApprovalDelay - property
994
@dbus_service_property(_interface, signature="t",
995
access="readwrite")
996
def ApprovalDelay_dbus_property(self, value=None):
997
if value is None: # get
998
return dbus.UInt64(self.approval_delay_milliseconds())
999
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1000
1001
# ApprovalDuration - property
1002
@dbus_service_property(_interface, signature="t",
1003
access="readwrite")
1004
def ApprovalDuration_dbus_property(self, value=None):
1005
if value is None: # get
1006
return dbus.UInt64(_timedelta_to_milliseconds(
1007
self.approval_duration))
1008
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1009
1010
# Name - property
1011
@dbus_service_property(_interface, signature="s", access="read")
1012
def Name_dbus_property(self):
1013
return dbus.String(self.name)
1014
1015
# Fingerprint - property
1016
@dbus_service_property(_interface, signature="s", access="read")
1017
def Fingerprint_dbus_property(self):
1018
return dbus.String(self.fingerprint)
1019
1020
# Host - property
1021
@dbus_service_property(_interface, signature="s",
1022
access="readwrite")
1023
def Host_dbus_property(self, value=None):
1024
if value is None: # get
1025
return dbus.String(self.host)
1026
self.host = value
1027
1028
# Created - property
1029
@dbus_service_property(_interface, signature="s", access="read")
1030
def Created_dbus_property(self):
1031
return dbus.String(datetime_to_dbus(self.created))
1032
1033
# LastEnabled - property
1034
@dbus_service_property(_interface, signature="s", access="read")
1035
def LastEnabled_dbus_property(self):
1036
return datetime_to_dbus(self.last_enabled)
1037
1038
# Enabled - property
1039
@dbus_service_property(_interface, signature="b",
1040
access="readwrite")
1041
def Enabled_dbus_property(self, value=None):
1042
if value is None: # get
1043
return dbus.Boolean(self.enabled)
1044
if value:
1045
self.enable()
1046
else:
1047
self.disable()
1048
1049
# LastCheckedOK - property
1050
@dbus_service_property(_interface, signature="s",
1051
access="readwrite")
1052
def LastCheckedOK_dbus_property(self, value=None):
1053
if value is not None:
1054
self.checked_ok()
1055
return
1056
return datetime_to_dbus(self.last_checked_ok)
1057
1058
# Expires - property
1059
@dbus_service_property(_interface, signature="s", access="read")
1060
def Expires_dbus_property(self):
1061
return datetime_to_dbus(self.expires)
1062
1063
# LastApprovalRequest - property
1064
@dbus_service_property(_interface, signature="s", access="read")
1065
def LastApprovalRequest_dbus_property(self):
1066
return datetime_to_dbus(self.last_approval_request)
1067
1068
# Timeout - property
1069
@dbus_service_property(_interface, signature="t",
1070
access="readwrite")
1071
def Timeout_dbus_property(self, value=None):
1072
if value is None: # get
1073
return dbus.UInt64(self.timeout_milliseconds())
1074
self.timeout = datetime.timedelta(0, 0, 0, value)
1075
if getattr(self, "disable_initiator_tag", None) is None:
1076
return
1077
# Reschedule timeout
1078
gobject.source_remove(self.disable_initiator_tag)
1079
self.disable_initiator_tag = None
1080
self.expires = None
1081
time_to_die = (self.
1082
_timedelta_to_milliseconds((self
1083
.last_checked_ok
1084
+ self.timeout)
1085
- datetime.datetime
1086
.utcnow()))
1087
if time_to_die <= 0:
1088
# The timeout has passed
1089
self.disable()
1090
else:
1091
self.expires = (datetime.datetime.utcnow()
1092
+ datetime.timedelta(milliseconds = time_to_die))
1093
self.disable_initiator_tag = (gobject.timeout_add
1094
(time_to_die, self.disable))
1095
1096
# ExtendedTimeout - property
1097
@dbus_service_property(_interface, signature="t",
1098
access="readwrite")
1099
def ExtendedTimeout_dbus_property(self, value=None):
1100
if value is None: # get
1101
return dbus.UInt64(self.extended_timeout_milliseconds())
1102
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1103
1104
# Interval - property
1105
@dbus_service_property(_interface, signature="t",
1106
access="readwrite")
1107
def Interval_dbus_property(self, value=None):
1108
if value is None: # get
1109
return dbus.UInt64(self.interval_milliseconds())
1110
self.interval = datetime.timedelta(0, 0, 0, value)
1111
if getattr(self, "checker_initiator_tag", None) is None:
1112
return
1113
# Reschedule checker run
1114
gobject.source_remove(self.checker_initiator_tag)
1115
self.checker_initiator_tag = (gobject.timeout_add
1116
(value, self.start_checker))
1117
self.start_checker() # Start one now, too
1118
1119
# Checker - property
1120
@dbus_service_property(_interface, signature="s",
1121
access="readwrite")
1122
def Checker_dbus_property(self, value=None):
1123
if value is None: # get
1124
return dbus.String(self.checker_command)
1125
self.checker_command = value
1126
1127
# CheckerRunning - property
1128
@dbus_service_property(_interface, signature="b",
1129
access="readwrite")
1130
def CheckerRunning_dbus_property(self, value=None):
1131
if value is None: # get
1132
return dbus.Boolean(self.checker is not None)
1133
if value:
1134
self.start_checker()
1135
else:
1136
self.stop_checker()
1137
1138
# ObjectPath - property
1139
@dbus_service_property(_interface, signature="o", access="read")
1140
def ObjectPath_dbus_property(self):
1141
return self.dbus_object_path # is already a dbus.ObjectPath
1142
1143
# Secret = property
1144
@dbus_service_property(_interface, signature="ay",
1145
access="write", byte_arrays=True)
1146
def Secret_dbus_property(self, value):
1147
self.secret = str(value)
584
StopChecker = dbus.service.method(_interface)(stop_checker)
585
StopChecker.__name__ = "StopChecker"
1148
586
1149
587
del _interface
1150
588
1151
589
1152
class ProxyClient(object):
1153
def __init__(self, child_pipe, fpr, address):
1154
self._pipe = child_pipe
1155
self._pipe.send(('init', fpr, address))
1156
if not self._pipe.recv():
1157
raise KeyError()
1158
1159
def __getattribute__(self, name):
1160
if(name == '_pipe'):
1161
return super(ProxyClient, self).__getattribute__(name)
1162
self._pipe.send(('getattr', name))
1163
data = self._pipe.recv()
1164
if data[0] == 'data':
1165
return data[1]
1166
if data[0] == 'function':
1167
def func(*args, **kwargs):
1168
self._pipe.send(('funcall', name, args, kwargs))
1169
return self._pipe.recv()[1]
1170
return func
1171
1172
def __setattr__(self, name, value):
1173
if(name == '_pipe'):
1174
return super(ProxyClient, self).__setattr__(name, value)
1175
self._pipe.send(('setattr', name, value))
1176
1177
1178
class ClientHandler(socketserver.BaseRequestHandler, object):
1179
"""A class to handle client connections.
1180
1181
Instantiated once for each connection to handle it.
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.
1182
654
Note: This will run in its own forked process."""
1183
655
1184
656
def handle(self):
1185
with contextlib.closing(self.server.child_pipe) as child_pipe:
1186
logger.info("TCP connection from: %s",
1187
unicode(self.client_address))
1188
logger.debug("Pipe FD: %d",
1189
self.server.child_pipe.fileno())
1190
1191
session = (gnutls.connection
1192
.ClientSession(self.request,
1193
gnutls.connection
1194
.X509Credentials()))
1195
1196
# Note: gnutls.connection.X509Credentials is really a
1197
# generic GnuTLS certificate credentials object so long as
1198
# no X.509 keys are added to it. Therefore, we can use it
1199
# here despite using OpenPGP certificates.
1200
1201
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1202
# "+AES-256-CBC", "+SHA1",
1203
# "+COMP-NULL", "+CTYPE-OPENPGP",
1204
# "+DHE-DSS"))
1205
# Use a fallback default, since this MUST be set.
1206
priority = self.server.gnutls_priority
1207
if priority is None:
1208
priority = "NORMAL"
1209
(gnutls.library.functions
1210
.gnutls_priority_set_direct(session._c_object,
1211
priority, None))
1212
1213
# Start communication using the Mandos protocol
1214
# Get protocol number
1215
line = self.request.makefile().readline()
1216
logger.debug("Protocol version: %r", line)
1217
try:
1218
if int(line.strip().split()[0]) > 1:
1219
raise RuntimeError
1220
except (ValueError, IndexError, RuntimeError) as error:
1221
logger.error("Unknown protocol version: %s", error)
1222
return
1223
1224
# Start GnuTLS connection
1225
try:
1226
session.handshake()
1227
except gnutls.errors.GNUTLSError as error:
1228
logger.warning("Handshake failed: %s", error)
1229
# Do not run session.bye() here: the session is not
1230
# established. Just abandon the request.
1231
return
1232
logger.debug("Handshake succeeded")
1233
1234
approval_required = False
1235
try:
1236
try:
1237
fpr = self.fingerprint(self.peer_certificate
1238
(session))
1239
except (TypeError,
1240
gnutls.errors.GNUTLSError) as error:
1241
logger.warning("Bad certificate: %s", error)
1242
return
1243
logger.debug("Fingerprint: %s", fpr)
1244
1245
try:
1246
client = ProxyClient(child_pipe, fpr,
1247
self.client_address)
1248
except KeyError:
1249
return
1250
1251
if client.approval_delay:
1252
delay = client.approval_delay
1253
client.approvals_pending += 1
1254
approval_required = True
1255
1256
while True:
1257
if not client.enabled:
1258
logger.info("Client %s is disabled",
1259
client.name)
1260
if self.server.use_dbus:
1261
# Emit D-Bus signal
1262
client.Rejected("Disabled")
1263
return
1264
1265
if client._approved or not client.approval_delay:
1266
#We are approved or approval is disabled
1267
break
1268
elif client._approved is None:
1269
logger.info("Client %s needs approval",
1270
client.name)
1271
if self.server.use_dbus:
1272
# Emit D-Bus signal
1273
client.NeedApproval(
1274
client.approval_delay_milliseconds(),
1275
client.approved_by_default)
1276
else:
1277
logger.warning("Client %s was not approved",
1278
client.name)
1279
if self.server.use_dbus:
1280
# Emit D-Bus signal
1281
client.Rejected("Denied")
1282
return
1283
1284
#wait until timeout or approved
1285
#x = float(client._timedelta_to_milliseconds(delay))
1286
time = datetime.datetime.now()
1287
client.changedstate.acquire()
1288
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1289
client.changedstate.release()
1290
time2 = datetime.datetime.now()
1291
if (time2 - time) >= delay:
1292
if not client.approved_by_default:
1293
logger.warning("Client %s timed out while"
1294
" waiting for approval",
1295
client.name)
1296
if self.server.use_dbus:
1297
# Emit D-Bus signal
1298
client.Rejected("Approval timed out")
1299
return
1300
else:
1301
break
1302
else:
1303
delay -= time2 - time
1304
1305
sent_size = 0
1306
while sent_size < len(client.secret):
1307
try:
1308
sent = session.send(client.secret[sent_size:])
1309
except gnutls.errors.GNUTLSError as error:
1310
logger.warning("gnutls send failed")
1311
return
1312
logger.debug("Sent: %d, remaining: %d",
1313
sent, len(client.secret)
1314
- (sent_size + sent))
1315
sent_size += sent
1316
1317
logger.info("Sending secret to %s", client.name)
1318
# bump the timeout as if seen
1319
client.checked_ok(client.extended_timeout)
1320
if self.server.use_dbus:
1321
# Emit D-Bus signal
1322
client.GotSecret()
1323
1324
finally:
1325
if approval_required:
1326
client.approvals_pending -= 1
1327
try:
1328
session.bye()
1329
except gnutls.errors.GNUTLSError as error:
1330
logger.warning("GnuTLS bye failed")
1331
1332
@staticmethod
1333
def peer_certificate(session):
1334
"Return the peer's OpenPGP certificate as a bytestring"
1335
# If not an OpenPGP certificate...
1336
if (gnutls.library.functions
1337
.gnutls_certificate_type_get(session._c_object)
1338
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1339
# ...do the normal thing
1340
return session.peer_certificate
1341
list_size = ctypes.c_uint(1)
1342
cert_list = (gnutls.library.functions
1343
.gnutls_certificate_get_peers
1344
(session._c_object, ctypes.byref(list_size)))
1345
if not bool(cert_list) and list_size.value != 0:
1346
raise gnutls.errors.GNUTLSError("error getting peer"
1347
" certificate")
1348
if list_size.value == 0:
1349
return None
1350
cert = cert_list[0]
1351
return ctypes.string_at(cert.data, cert.size)
1352
1353
@staticmethod
1354
def fingerprint(openpgp):
1355
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1356
# New GnuTLS "datum" with the OpenPGP public key
1357
datum = (gnutls.library.types
1358
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1359
ctypes.POINTER
1360
(ctypes.c_ubyte)),
1361
ctypes.c_uint(len(openpgp))))
1362
# New empty GnuTLS certificate
1363
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1364
(gnutls.library.functions
1365
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1366
# Import the OpenPGP public key into the certificate
1367
(gnutls.library.functions
1368
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1369
gnutls.library.constants
1370
.GNUTLS_OPENPGP_FMT_RAW))
1371
# Verify the self signature in the key
1372
crtverify = ctypes.c_uint()
1373
(gnutls.library.functions
1374
.gnutls_openpgp_crt_verify_self(crt, 0,
1375
ctypes.byref(crtverify)))
1376
if crtverify.value != 0:
1377
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1378
raise (gnutls.errors.CertificateSecurityError
1379
("Verify failed"))
1380
# New buffer for the fingerprint
1381
buf = ctypes.create_string_buffer(20)
1382
buf_len = ctypes.c_size_t()
1383
# Get the fingerprint from the certificate into the buffer
1384
(gnutls.library.functions
1385
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1386
ctypes.byref(buf_len)))
1387
# Deinit the certificate
1388
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1389
# Convert the buffer to a Python bytestring
1390
fpr = ctypes.string_at(buf, buf_len.value)
1391
# Convert the bytestring to hexadecimal notation
1392
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1393
return hex_fpr
1394
1395
1396
class MultiprocessingMixIn(object):
1397
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1398
def sub_process_main(self, request, address):
1399
try:
1400
self.finish_request(request, address)
1401
except:
1402
self.handle_error(request, address)
1403
self.close_request(request)
1404
1405
def process_request(self, request, address):
1406
"""Start a new process to process the request."""
1407
multiprocessing.Process(target = self.sub_process_main,
1408
args = (request, address)).start()
1409
1410
1411
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1412
""" adds a pipe to the MixIn """
1413
def process_request(self, request, client_address):
1414
"""Overrides and wraps the original process_request().
1415
1416
This function creates a new pipe in self.pipe
1417
"""
1418
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1419
1420
super(MultiprocessingMixInWithPipe,
1421
self).process_request(request, client_address)
1422
self.child_pipe.close()
1423
self.add_pipe(parent_pipe)
1424
1425
def add_pipe(self, parent_pipe):
1426
"""Dummy function; override as necessary"""
1427
raise NotImplementedError
1428
1429
1430
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1431
socketserver.TCPServer, object):
1432
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1433
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
703
for c in self.server.clients:
704
if c.fingerprint == fpr:
705
client = c
706
break
707
else:
708
logger.warning(u"Client not found for fingerprint: %s",
709
fpr)
710
session.bye()
711
return
712
# Have to check if client.still_valid(), since it is possible
713
# that the client timed out while establishing the GnuTLS
714
# session.
715
if not client.still_valid():
716
logger.warning(u"Client %(name)s is invalid",
717
vars(client))
718
session.bye()
719
return
720
## This won't work here, since we're in a fork.
721
# client.checked_ok()
722
sent_size = 0
723
while sent_size < len(client.secret):
724
sent = session.send(client.secret[sent_size:])
725
logger.debug(u"Sent: %d, remaining: %d",
726
sent, len(client.secret)
727
- (sent_size + sent))
728
sent_size += sent
729
session.bye()
730
731
732
class IPv6_TCPServer(SocketServer.ForkingMixIn,
733
SocketServer.TCPServer, object):
734
"""IPv6 TCP server. Accepts 'None' as address and/or port.
1434
735
Attributes:
736
settings: Server settings
737
clients: Set() of Client objects
1435
738
enabled: Boolean; whether this server is activated yet
1436
interface: None or a network interface name (string)
1437
use_ipv6: Boolean; to use IPv6 or not
1438
739
"""
1439
def __init__(self, server_address, RequestHandlerClass,
1440
interface=None, use_ipv6=True):
1441
self.interface = interface
1442
if use_ipv6:
1443
self.address_family = socket.AF_INET6
1444
socketserver.TCPServer.__init__(self, server_address,
1445
RequestHandlerClass)
740
address_family = socket.AF_INET6
741
def __init__(self, *args, **kwargs):
742
if "settings" in kwargs:
743
self.settings = kwargs["settings"]
744
del kwargs["settings"]
745
if "clients" in kwargs:
746
self.clients = kwargs["clients"]
747
del kwargs["clients"]
748
self.enabled = False
749
super(IPv6_TCPServer, self).__init__(*args, **kwargs)
1446
750
def server_bind(self):
1447
751
"""This overrides the normal server_bind() function
1448
752
to bind to an interface if one was specified, and also NOT to
1449
753
bind to an address or port if they were not specified."""
1450
if self.interface is not None:
1451
if SO_BINDTODEVICE is None:
1452
logger.error("SO_BINDTODEVICE does not exist;"
1453
" cannot bind to interface %s",
1454
self.interface)
1455
else:
1456
try:
1457
self.socket.setsockopt(socket.SOL_SOCKET,
1458
SO_BINDTODEVICE,
1459
str(self.interface
1460
+ '\0'))
1461
except socket.error as error:
1462
if error[0] == errno.EPERM:
1463
logger.error("No permission to"
1464
" bind to interface %s",
1465
self.interface)
1466
elif error[0] == errno.ENOPROTOOPT:
1467
logger.error("SO_BINDTODEVICE not available;"
1468
" cannot bind to interface %s",
1469
self.interface)
1470
else:
1471
raise
754
if self.settings["interface"]:
755
# 25 is from /usr/include/asm-i486/socket.h
756
SO_BINDTODEVICE = getattr(socket, "SO_BINDTODEVICE", 25)
757
try:
758
self.socket.setsockopt(socket.SOL_SOCKET,
759
SO_BINDTODEVICE,
760
self.settings["interface"])
761
except socket.error, error:
762
if error[0] == errno.EPERM:
763
logger.error(u"No permission to"
764
u" bind to interface %s",
765
self.settings["interface"])
766
else:
767
raise error
1472
768
# Only bind(2) the socket if we really need to.
1473
769
if self.server_address[0] or self.server_address[1]:
1474
770
if not self.server_address[0]:
1475
if self.address_family == socket.AF_INET6:
1476
any_address = "::" # in6addr_any
1477
else:
1478
any_address = socket.INADDR_ANY
1479
self.server_address = (any_address,
771
in6addr_any = "::"
772
self.server_address = (in6addr_any,
1480
773
self.server_address[1])
1481
774
elif not self.server_address[1]:
1482
775
self.server_address = (self.server_address[0],
1483
776
0)
1484
# if self.interface:
777
# if self.settings["interface"]:
1485
778
# self.server_address = (self.server_address[0],
1486
779
# 0, # port
1487
780
# 0, # flowinfo
1488
781
# if_nametoindex
1489
# (self.interface))
1490
return socketserver.TCPServer.server_bind(self)
1491
1492
1493
class MandosServer(IPv6_TCPServer):
1494
"""Mandos server.
1495
1496
Attributes:
1497
clients: set of Client objects
1498
gnutls_priority GnuTLS priority string
1499
use_dbus: Boolean; to emit D-Bus signals or not
1500
1501
Assumes a gobject.MainLoop event loop.
1502
"""
1503
def __init__(self, server_address, RequestHandlerClass,
1504
interface=None, use_ipv6=True, clients=None,
1505
gnutls_priority=None, use_dbus=True):
1506
self.enabled = False
1507
self.clients = clients
1508
if self.clients is None:
1509
self.clients = set()
1510
self.use_dbus = use_dbus
1511
self.gnutls_priority = gnutls_priority
1512
IPv6_TCPServer.__init__(self, server_address,
1513
RequestHandlerClass,
1514
interface = interface,
1515
use_ipv6 = use_ipv6)
782
# (self.settings
783
# ["interface"]))
784
return super(IPv6_TCPServer, self).server_bind()
1516
785
def server_activate(self):
1517
786
if self.enabled:
1518
return socketserver.TCPServer.server_activate(self)
787
return super(IPv6_TCPServer, self).server_activate()
1519
788
def enable(self):
1520
789
self.enabled = True
1521
def add_pipe(self, parent_pipe):
1522
# Call "handle_ipc" for both data and EOF events
1523
gobject.io_add_watch(parent_pipe.fileno(),
1524
gobject.IO_IN | gobject.IO_HUP,
1525
functools.partial(self.handle_ipc,
1526
parent_pipe = parent_pipe))
1527
1528
def handle_ipc(self, source, condition, parent_pipe=None,
1529
client_object=None):
1530
condition_names = {
1531
gobject.IO_IN: "IN", # There is data to read.
1532
gobject.IO_OUT: "OUT", # Data can be written (without
1533
# blocking).
1534
gobject.IO_PRI: "PRI", # There is urgent data to read.
1535
gobject.IO_ERR: "ERR", # Error condition.
1536
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1537
# broken, usually for pipes and
1538
# sockets).
1539
}
1540
conditions_string = ' | '.join(name
1541
for cond, name in
1542
condition_names.iteritems()
1543
if cond & condition)
1544
# error or the other end of multiprocessing.Pipe has closed
1545
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1546
return False
1547
1548
# Read a request from the child
1549
request = parent_pipe.recv()
1550
command = request[0]
1551
1552
if command == 'init':
1553
fpr = request[1]
1554
address = request[2]
1555
1556
for c in self.clients:
1557
if c.fingerprint == fpr:
1558
client = c
1559
break
1560
else:
1561
logger.info("Client not found for fingerprint: %s, ad"
1562
"dress: %s", fpr, address)
1563
if self.use_dbus:
1564
# Emit D-Bus signal
1565
mandos_dbus_service.ClientNotFound(fpr, address[0])
1566
parent_pipe.send(False)
1567
return False
1568
1569
gobject.io_add_watch(parent_pipe.fileno(),
1570
gobject.IO_IN | gobject.IO_HUP,
1571
functools.partial(self.handle_ipc,
1572
parent_pipe = parent_pipe,
1573
client_object = client))
1574
parent_pipe.send(True)
1575
# remove the old hook in favor of the new above hook on same fileno
1576
return False
1577
if command == 'funcall':
1578
funcname = request[1]
1579
args = request[2]
1580
kwargs = request[3]
1581
1582
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1583
1584
if command == 'getattr':
1585
attrname = request[1]
1586
if callable(client_object.__getattribute__(attrname)):
1587
parent_pipe.send(('function',))
1588
else:
1589
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1590
1591
if command == 'setattr':
1592
attrname = request[1]
1593
value = request[2]
1594
setattr(client_object, attrname, value)
1595
1596
return True
1597
790
1598
791
1599
792
def string_to_delta(interval):
1607
800
datetime.timedelta(0, 3600)
1608
801
>>> string_to_delta('24h')
1609
802
datetime.timedelta(1)
1610
>>> string_to_delta('1w')
803
>>> string_to_delta(u'1w')
1611
804
datetime.timedelta(7)
1612
805
>>> string_to_delta('5m 30s')
1613
806
datetime.timedelta(0, 330)
1617
810
try:
1618
811
suffix = unicode(s[-1])
1619
812
value = int(s[:-1])
1620
if suffix == "d":
813
if suffix == u"d":
1621
814
delta = datetime.timedelta(value)
1622
elif suffix == "s":
815
elif suffix == u"s":
1623
816
delta = datetime.timedelta(0, value)
1624
elif suffix == "m":
817
elif suffix == u"m":
1625
818
delta = datetime.timedelta(0, 0, 0, 0, value)
1626
elif suffix == "h":
819
elif suffix == u"h":
1627
820
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1628
elif suffix == "w":
821
elif suffix == u"w":
1629
822
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1630
823
else:
1631
raise ValueError("Unknown suffix %r" % suffix)
1632
except (ValueError, IndexError) as e:
1633
raise ValueError(*(e.args))
824
raise ValueError
825
except (ValueError, IndexError):
826
raise ValueError
1634
827
timevalue += delta
1635
828
return timevalue
1636
829
1637
830
831
def server_state_changed(state):
832
"""Derived from the Avahi example code"""
833
if state == avahi.SERVER_COLLISION:
834
logger.error(u"Zeroconf server name collision")
835
service.remove()
836
elif state == avahi.SERVER_RUNNING:
837
service.add()
838
839
840
def entry_group_state_changed(state, error):
841
"""Derived from the Avahi example code"""
842
logger.debug(u"Avahi state change: %i", state)
843
844
if state == avahi.ENTRY_GROUP_ESTABLISHED:
845
logger.debug(u"Zeroconf service established.")
846
elif state == avahi.ENTRY_GROUP_COLLISION:
847
logger.warning(u"Zeroconf service name collision.")
848
service.rename()
849
elif state == avahi.ENTRY_GROUP_FAILURE:
850
logger.critical(u"Avahi: Error in group state changed %s",
851
unicode(error))
852
raise AvahiGroupError(u"State changed: %s" % unicode(error))
853
1638
854
def if_nametoindex(interface):
1639
"""Call the C function if_nametoindex(), or equivalent
1640
1641
Note: This function cannot accept a unicode string."""
855
"""Call the C function if_nametoindex(), or equivalent"""
1642
856
global if_nametoindex
1643
857
try:
1644
858
if_nametoindex = (ctypes.cdll.LoadLibrary
1645
859
(ctypes.util.find_library("c"))
1646
860
.if_nametoindex)
1647
861
except (OSError, AttributeError):
1648
logger.warning("Doing if_nametoindex the hard way")
862
if "struct" not in sys.modules:
863
import struct
864
if "fcntl" not in sys.modules:
865
import fcntl
1649
866
def if_nametoindex(interface):
1650
867
"Get an interface index the hard way, i.e. using fcntl()"
1651
868
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1652
with contextlib.closing(socket.socket()) as s:
869
with closing(socket.socket()) as s:
1653
870
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1654
struct.pack(str("16s16x"),
1655
interface))
1656
interface_index = struct.unpack(str("I"),
1657
ifreq[16:20])[0]
871
struct.pack("16s16x", interface))
872
interface_index = struct.unpack("I", ifreq[16:20])[0]
1658
873
return interface_index
1659
874
return if_nametoindex(interface)
1660
875
1661
876
1662
877
def daemon(nochdir = False, noclose = False):
1663
878
"""See daemon(3). Standard BSD Unix function.
1664
1665
879
This should really exist as os.daemon, but it doesn't (yet)."""
1666
880
if os.fork():
1667
881
sys.exit()
1675
889
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1676
890
if not stat.S_ISCHR(os.fstat(null).st_mode):
1677
891
raise OSError(errno.ENODEV,
1678
"%s not a character device"
1679
% os.path.devnull)
892
"/dev/null not a character device")
1680
893
os.dup2(null, sys.stdin.fileno())
1681
894
os.dup2(null, sys.stdout.fileno())
1682
895
os.dup2(null, sys.stderr.fileno())
1685
898
1686
899
1687
900
def main():
1688
1689
##################################################################
1690
# Parsing of options, both command line and config file
1691
1692
parser = argparse.ArgumentParser()
1693
parser.add_argument("-v", "--version", action="version",
1694
version = "%%(prog)s %s" % version,
1695
help="show version number and exit")
1696
parser.add_argument("-i", "--interface", metavar="IF",
1697
help="Bind to interface IF")
1698
parser.add_argument("-a", "--address",
1699
help="Address to listen for requests on")
1700
parser.add_argument("-p", "--port", type=int,
1701
help="Port number to receive requests on")
1702
parser.add_argument("--check", action="store_true",
1703
help="Run self-test")
1704
parser.add_argument("--debug", action="store_true",
1705
help="Debug mode; run in foreground and log"
1706
" to terminal")
1707
parser.add_argument("--debuglevel", metavar="LEVEL",
1708
help="Debug level for stdout output")
1709
parser.add_argument("--priority", help="GnuTLS"
1710
" priority string (see GnuTLS documentation)")
1711
parser.add_argument("--servicename",
1712
metavar="NAME", help="Zeroconf service name")
1713
parser.add_argument("--configdir",
1714
default="/etc/mandos", metavar="DIR",
1715
help="Directory to search for configuration"
1716
" files")
1717
parser.add_argument("--no-dbus", action="store_false",
1718
dest="use_dbus", help="Do not provide D-Bus"
1719
" system bus interface")
1720
parser.add_argument("--no-ipv6", action="store_false",
1721
dest="use_ipv6", help="Do not use IPv6")
1722
options = parser.parse_args()
901
parser = optparse.OptionParser(version = "%%prog %s" % version)
902
parser.add_option("-i", "--interface", type="string",
903
metavar="IF", help="Bind to interface IF")
904
parser.add_option("-a", "--address", type="string",
905
help="Address to listen for requests on")
906
parser.add_option("-p", "--port", type="int",
907
help="Port number to receive requests on")
908
parser.add_option("--check", action="store_true",
909
help="Run self-test")
910
parser.add_option("--debug", action="store_true",
911
help="Debug mode; run in foreground and log to"
912
" terminal")
913
parser.add_option("--priority", type="string", help="GnuTLS"
914
" priority string (see GnuTLS documentation)")
915
parser.add_option("--servicename", type="string", metavar="NAME",
916
help="Zeroconf service name")
917
parser.add_option("--configdir", type="string",
918
default="/etc/mandos", metavar="DIR",
919
help="Directory to search for configuration"
920
" files")
921
parser.add_option("--no-dbus", action="store_false",
922
dest="use_dbus",
923
help="Do not provide D-Bus system bus"
924
" interface")
925
options = parser.parse_args()[0]
1723
926
1724
927
if options.check:
1725
928
import doctest
1735
938
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1736
939
"servicename": "Mandos",
1737
940
"use_dbus": "True",
1738
"use_ipv6": "True",
1739
"debuglevel": "",
1740
941
}
1741
942
1742
943
# Parse config file for server-global settings
1743
server_config = configparser.SafeConfigParser(server_defaults)
944
server_config = ConfigParser.SafeConfigParser(server_defaults)
1744
945
del server_defaults
1745
server_config.read(os.path.join(options.configdir,
1746
"mandos.conf"))
946
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1747
947
# Convert the SafeConfigParser object to a dict
1748
948
server_settings = server_config.defaults()
1749
949
# Use the appropriate methods on the non-string config options
1750
for option in ("debug", "use_dbus", "use_ipv6"):
1751
server_settings[option] = server_config.getboolean("DEFAULT",
1752
option)
950
server_settings["debug"] = server_config.getboolean("DEFAULT",
951
"debug")
952
server_settings["use_dbus"] = server_config.getboolean("DEFAULT",
953
"use_dbus")
1753
954
if server_settings["port"]:
1754
955
server_settings["port"] = server_config.getint("DEFAULT",
1755
956
"port")
1759
960
# options, if set.
1760
961
for option in ("interface", "address", "port", "debug",
1761
962
"priority", "servicename", "configdir",
1762
"use_dbus", "use_ipv6", "debuglevel"):
963
"use_dbus"):
1763
964
value = getattr(options, option)
1764
965
if value is not None:
1765
966
server_settings[option] = value
1766
967
del options
1767
# Force all strings to be unicode
1768
for option in server_settings.keys():
1769
if type(server_settings[option]) is str:
1770
server_settings[option] = unicode(server_settings[option])
1771
968
# Now we have our good server settings in "server_settings"
1772
969
1773
##################################################################
1774
1775
970
# For convenience
1776
971
debug = server_settings["debug"]
1777
debuglevel = server_settings["debuglevel"]
1778
972
use_dbus = server_settings["use_dbus"]
1779
use_ipv6 = server_settings["use_ipv6"]
973
974
def sigsegvhandler(signum, frame):
975
raise RuntimeError('Segmentation fault')
976
977
if not debug:
978
syslogger.setLevel(logging.WARNING)
979
console.setLevel(logging.WARNING)
980
else:
981
signal.signal(signal.SIGSEGV, sigsegvhandler)
1780
982
1781
983
if server_settings["servicename"] != "Mandos":
1782
984
syslogger.setFormatter(logging.Formatter
1783
('Mandos (%s) [%%(process)d]:'
1784
' %%(levelname)s: %%(message)s'
985
('Mandos (%s): %%(levelname)s:'
986
' %%(message)s'
1785
987
% server_settings["servicename"]))
1786
988
1787
989
# Parse config file with clients
1788
client_defaults = { "timeout": "5m",
1789
"extended_timeout": "15m",
1790
"interval": "2m",
990
client_defaults = { "timeout": "1h",
991
"interval": "5m",
1791
992
"checker": "fping -q -- %%(host)s",
1792
993
"host": "",
1793
"approval_delay": "0s",
1794
"approval_duration": "1s",
1795
994
}
1796
client_config = configparser.SafeConfigParser(client_defaults)
995
client_config = ConfigParser.SafeConfigParser(client_defaults)
1797
996
client_config.read(os.path.join(server_settings["configdir"],
1798
997
"clients.conf"))
1799
998
1800
global mandos_dbus_service
1801
mandos_dbus_service = None
1802
1803
tcp_server = MandosServer((server_settings["address"],
1804
server_settings["port"]),
1805
ClientHandler,
1806
interface=(server_settings["interface"]
1807
or None),
1808
use_ipv6=use_ipv6,
1809
gnutls_priority=
1810
server_settings["priority"],
1811
use_dbus=use_dbus)
1812
if not debug:
1813
pidfilename = "/var/run/mandos.pid"
1814
try:
1815
pidfile = open(pidfilename, "w")
1816
except IOError:
1817
logger.error("Could not open file %r", pidfilename)
999
clients = Set()
1000
tcp_server = IPv6_TCPServer((server_settings["address"],
1001
server_settings["port"]),
1002
TCP_handler,
1003
settings=server_settings,
1004
clients=clients)
1005
pidfilename = "/var/run/mandos.pid"
1006
try:
1007
pidfile = open(pidfilename, "w")
1008
except IOError, error:
1009
logger.error("Could not open file %r", pidfilename)
1818
1010
1819
1011
try:
1820
1012
uid = pwd.getpwnam("_mandos").pw_uid
1826
1018
except KeyError:
1827
1019
try:
1828
1020
uid = pwd.getpwnam("nobody").pw_uid
1829
gid = pwd.getpwnam("nobody").pw_gid
1021
gid = pwd.getpwnam("nogroup").pw_gid
1830
1022
except KeyError:
1831
1023
uid = 65534
1832
1024
gid = 65534
1833
1025
try:
1834
1026
os.setgid(gid)
1835
1027
os.setuid(uid)
1836
except OSError as error:
1028
except OSError, error:
1837
1029
if error[0] != errno.EPERM:
1838
1030
raise error
1839
1031
1840
if not debug and not debuglevel:
1841
syslogger.setLevel(logging.WARNING)
1842
console.setLevel(logging.WARNING)
1843
if debuglevel:
1844
level = getattr(logging, debuglevel.upper())
1845
syslogger.setLevel(level)
1846
console.setLevel(level)
1847
1032
# Enable all possible GnuTLS debugging
1848
1033
if debug:
1849
# Enable all possible GnuTLS debugging
1850
1851
1034
# "Use a log level over 10 to enable all debugging options."
1852
1035
# - GnuTLS manual
1853
1036
gnutls.library.functions.gnutls_global_set_log_level(11)
1858
1041
1859
1042
(gnutls.library.functions
1860
1043
.gnutls_global_set_log_function(debug_gnutls))
1861
1862
# Redirect stdin so all checkers get /dev/null
1863
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1864
os.dup2(null, sys.stdin.fileno())
1865
if null > 2:
1866
os.close(null)
1867
else:
1868
# No console logging
1869
logger.removeHandler(console)
1870
1044
1871
# Need to fork before connecting to D-Bus
1872
if not debug:
1873
# Close all input and output, do double fork, etc.
1874
daemon()
1045
global service
1046
service = AvahiService(name = server_settings["servicename"],
1047
servicetype = "_mandos._tcp", )
1048
if server_settings["interface"]:
1049
service.interface = (if_nametoindex
1050
(server_settings["interface"]))
1875
1051
1876
1052
global main_loop
1053
global bus
1054
global server
1877
1055
# From the Avahi example code
1878
1056
DBusGMainLoop(set_as_default=True )
1879
1057
main_loop = gobject.MainLoop()
1880
1058
bus = dbus.SystemBus()
1059
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
1060
avahi.DBUS_PATH_SERVER),
1061
avahi.DBUS_INTERFACE_SERVER)
1881
1062
# End of Avahi example code
1882
1063
if use_dbus:
1883
try:
1884
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1885
bus, do_not_queue=True)
1886
except dbus.exceptions.NameExistsException as e:
1887
logger.error(unicode(e) + ", disabling D-Bus")
1888
use_dbus = False
1889
server_settings["use_dbus"] = False
1890
tcp_server.use_dbus = False
1891
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1892
service = AvahiService(name = server_settings["servicename"],
1893
servicetype = "_mandos._tcp",
1894
protocol = protocol, bus = bus)
1895
if server_settings["interface"]:
1896
service.interface = (if_nametoindex
1897
(str(server_settings["interface"])))
1898
1899
global multiprocessing_manager
1900
multiprocessing_manager = multiprocessing.Manager()
1901
1902
client_class = Client
1903
if use_dbus:
1904
client_class = functools.partial(ClientDBus, bus = bus)
1905
def client_config_items(config, section):
1906
special_settings = {
1907
"approved_by_default":
1908
lambda: config.getboolean(section,
1909
"approved_by_default"),
1910
}
1911
for name, value in config.items(section):
1912
try:
1913
yield (name, special_settings[name]())
1914
except KeyError:
1915
yield (name, value)
1916
1917
tcp_server.clients.update(set(
1918
client_class(name = section,
1919
config= dict(client_config_items(
1920
client_config, section)))
1921
for section in client_config.sections()))
1922
if not tcp_server.clients:
1923
logger.warning("No clients defined")
1064
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
1065
1066
clients.update(Set(Client(name = section,
1067
config
1068
= dict(client_config.items(section)),
1069
use_dbus = use_dbus)
1070
for section in client_config.sections()))
1071
if not clients:
1072
logger.warning(u"No clients defined")
1073
1074
if debug:
1075
# Redirect stdin so all checkers get /dev/null
1076
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1077
os.dup2(null, sys.stdin.fileno())
1078
if null > 2:
1079
os.close(null)
1080
else:
1081
# No console logging
1082
logger.removeHandler(console)
1083
# Close all input and output, do double fork, etc.
1084
daemon()
1085
1086
try:
1087
pid = os.getpid()
1088
pidfile.write(str(pid) + "\n")
1089
pidfile.close()
1090
del pidfile
1091
except IOError:
1092
logger.error(u"Could not write to file %r with PID %d",
1093
pidfilename, pid)
1094
except NameError:
1095
# "pidfile" was never created
1096
pass
1097
del pidfilename
1098
1099
def cleanup():
1100
"Cleanup function; run on exit"
1101
global group
1102
# From the Avahi example code
1103
if not group is None:
1104
group.Free()
1105
group = None
1106
# End of Avahi example code
1924
1107
1108
while clients:
1109
client = clients.pop()
1110
client.disable_hook = None
1111
client.disable()
1112
1113
atexit.register(cleanup)
1114
1925
1115
if not debug:
1926
try:
1927
with pidfile:
1928
pid = os.getpid()
1929
pidfile.write(str(pid) + "\n".encode("utf-8"))
1930
del pidfile
1931
except IOError:
1932
logger.error("Could not write to file %r with PID %d",
1933
pidfilename, pid)
1934
except NameError:
1935
# "pidfile" was never created
1936
pass
1937
del pidfilename
1938
1939
1116
signal.signal(signal.SIGINT, signal.SIG_IGN)
1940
1941
1117
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1942
1118
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1943
1119
1944
1120
if use_dbus:
1945
class MandosDBusService(dbus.service.Object):
1121
class MandosServer(dbus.service.Object):
1946
1122
"""A D-Bus proxy object"""
1947
1123
def __init__(self):
1948
1124
dbus.service.Object.__init__(self, bus, "/")
1949
_interface = "se.bsnet.fukt.Mandos"
1950
1951
@dbus.service.signal(_interface, signature="o")
1952
def ClientAdded(self, objpath):
1953
"D-Bus signal"
1954
pass
1955
1956
@dbus.service.signal(_interface, signature="ss")
1957
def ClientNotFound(self, fingerprint, address):
1125
_interface = u"se.bsnet.fukt.Mandos"
1126
1127
@dbus.service.signal(_interface, signature="oa{sv}")
1128
def ClientAdded(self, objpath, properties):
1958
1129
"D-Bus signal"
1959
1130
pass
1960
1131
1966
1137
@dbus.service.method(_interface, out_signature="ao")
1967
1138
def GetAllClients(self):
1968
1139
"D-Bus method"
1969
return dbus.Array(c.dbus_object_path
1970
for c in tcp_server.clients)
1140
return dbus.Array(c.dbus_object_path for c in clients)
1971
1141
1972
@dbus.service.method(_interface,
1973
out_signature="a{oa{sv}}")
1142
@dbus.service.method(_interface, out_signature="a{oa{sv}}")
1974
1143
def GetAllClientsWithProperties(self):
1975
1144
"D-Bus method"
1976
1145
return dbus.Dictionary(
1977
((c.dbus_object_path, c.GetAll(""))
1978
for c in tcp_server.clients),
1146
((c.dbus_object_path, c.GetAllProperties())
1147
for c in clients),
1979
1148
signature="oa{sv}")
1980
1149
1981
1150
@dbus.service.method(_interface, in_signature="o")
1982
1151
def RemoveClient(self, object_path):
1983
1152
"D-Bus method"
1984
for c in tcp_server.clients:
1153
for c in clients:
1985
1154
if c.dbus_object_path == object_path:
1986
tcp_server.clients.remove(c)
1987
c.remove_from_connection()
1155
clients.remove(c)
1988
1156
# Don't signal anything except ClientRemoved
1989
c.disable(quiet=True)
1157
c.use_dbus = False
1158
c.disable()
1990
1159
# Emit D-Bus signal
1991
1160
self.ClientRemoved(object_path, c.name)
1992
1161
return
1993
raise KeyError(object_path)
1162
raise KeyError
1994
1163
1995
1164
del _interface
1996
1165
1997
mandos_dbus_service = MandosDBusService()
1998
1999
def cleanup():
2000
"Cleanup function; run on exit"
2001
service.cleanup()
2002
2003
while tcp_server.clients:
2004
client = tcp_server.clients.pop()
2005
if use_dbus:
2006
client.remove_from_connection()
2007
client.disable_hook = None
2008
# Don't signal anything except ClientRemoved
2009
client.disable(quiet=True)
2010
if use_dbus:
2011
# Emit D-Bus signal
2012
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2013
client.name)
2014
2015
atexit.register(cleanup)
2016
2017
for client in tcp_server.clients:
1166
mandos_server = MandosServer()
1167
1168
for client in clients:
2018
1169
if use_dbus:
2019
1170
# Emit D-Bus signal
2020
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1171
mandos_server.ClientAdded(client.dbus_object_path,
1172
client.GetAllProperties())
2021
1173
client.enable()
2022
1174
2023
1175
tcp_server.enable()
2025
1177
2026
1178
# Find out what port we got
2027
1179
service.port = tcp_server.socket.getsockname()[1]
2028
if use_ipv6:
2029
logger.info("Now listening on address %r, port %d,"
2030
" flowinfo %d, scope_id %d"
2031
% tcp_server.socket.getsockname())
2032
else: # IPv4
2033
logger.info("Now listening on address %r, port %d"
2034
% tcp_server.socket.getsockname())
1180
logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
1181
u" scope_id %d" % tcp_server.socket.getsockname())
2035
1182
2036
1183
#service.interface = tcp_server.socket.getsockname()[3]
2037
1184
2038
1185
try:
2039
1186
# From the Avahi example code
1187
server.connect_to_signal("StateChanged", server_state_changed)
2040
1188
try:
2041
service.activate()
2042
except dbus.exceptions.DBusException as error:
2043
logger.critical("DBusException: %s", error)
2044
cleanup()
1189
server_state_changed(server.GetState())
1190
except dbus.exceptions.DBusException, error:
1191
logger.critical(u"DBusException: %s", error)
2045
1192
sys.exit(1)
2046
1193
# End of Avahi example code
2047
1194
2050
1197
(tcp_server.handle_request
2051
1198
(*args[2:], **kwargs) or True))
2052
1199
2053
logger.debug("Starting main loop")
1200
logger.debug(u"Starting main loop")
2054
1201
main_loop.run()
2055
except AvahiError as error:
2056
logger.critical("AvahiError: %s", error)
2057
cleanup()
1202
except AvahiError, error:
1203
logger.critical(u"AvahiError: %s", error)
2058
1204
sys.exit(1)
2059
1205
except KeyboardInterrupt:
2060
1206
if debug:
2061
print("", file=sys.stderr)
2062
logger.debug("Server received KeyboardInterrupt")
2063
logger.debug("Server exiting")
2064
# Must run before the D-Bus bus name gets deregistered
2065
cleanup()
2066
1207
print
2067
1208
2068
1209
if __name__ == '__main__':
2069
1210
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0