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- Committer: Björn Påhlsson
- Date: 2011-10-02 19:18:24 UTC
- mto: This revision was merged to the branch mainline in revision 505.
- Revision ID: belorn@fukt.bsnet.se-20111002191824-eweh4pvneeg3qzia
transitional stuff actually working
documented change to D-Bus API
documented change to D-Bus API
- files added:
- 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" 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
# Copyright © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 Björn Påhlsson
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 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, with_statement, absolute_import
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
35
36
36
import SocketServer
37
import SocketServer as socketserver
37
38
import socket
38
import optparse
39
import argparse
39
40
import datetime
40
41
import errno
41
42
import gnutls.crypto
44
45
import gnutls.library.functions
45
46
import gnutls.library.constants
46
47
import gnutls.library.types
47
import ConfigParser
48
import ConfigParser as configparser
48
49
import sys
49
50
import re
50
51
import os
51
52
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
from contextlib import closing
59
import contextlib
60
import struct
61
import fcntl
62
import functools
63
import cPickle as pickle
64
import multiprocessing
65
import types
60
66
61
67
import dbus
62
68
import dbus.service
65
71
from dbus.mainloop.glib import DBusGMainLoop
66
72
import ctypes
67
73
import ctypes.util
68
69
version = "1.0.8"
70
74
import xml.dom.minidom
75
import inspect
76
77
try:
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
79
except AttributeError:
80
try:
81
from IN import SO_BINDTODEVICE
82
except ImportError:
83
SO_BINDTODEVICE = None
84
85
86
version = "1.3.1"
87
88
#logger = logging.getLogger('mandos')
71
89
logger = logging.Logger('mandos')
72
90
syslogger = (logging.handlers.SysLogHandler
73
91
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
74
address = "/dev/log"))
92
address = str("/dev/log")))
75
93
syslogger.setFormatter(logging.Formatter
76
94
('Mandos [%(process)d]: %(levelname)s:'
77
95
' %(message)s'))
79
97
80
98
console = logging.StreamHandler()
81
99
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
82
' %(levelname)s: %(message)s'))
100
' %(levelname)s:'
101
' %(message)s'))
83
102
logger.addHandler(console)
84
103
85
104
class AvahiError(Exception):
98
117
99
118
class AvahiService(object):
100
119
"""An Avahi (Zeroconf) service.
120
101
121
Attributes:
102
122
interface: integer; avahi.IF_UNSPEC or an interface index.
103
123
Used to optionally bind to the specified interface.
111
131
max_renames: integer; maximum number of renames
112
132
rename_count: integer; counter so we only rename after collisions
113
133
a sensible number of times
134
group: D-Bus Entry Group
135
server: D-Bus Server
136
bus: dbus.SystemBus()
114
137
"""
115
138
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
116
139
servicetype = None, port = None, TXT = None,
117
140
domain = "", host = "", max_renames = 32768,
118
protocol = avahi.PROTO_UNSPEC):
141
protocol = avahi.PROTO_UNSPEC, bus = None):
119
142
self.interface = interface
120
143
self.name = name
121
144
self.type = servicetype
126
149
self.rename_count = 0
127
150
self.max_renames = max_renames
128
151
self.protocol = protocol
152
self.group = None # our entry group
153
self.server = None
154
self.bus = bus
155
self.entry_group_state_changed_match = None
129
156
def rename(self):
130
157
"""Derived from the Avahi example code"""
131
158
if self.rename_count >= self.max_renames:
132
logger.critical(u"No suitable Zeroconf service name found"
133
u" after %i retries, exiting.",
159
logger.critical("No suitable Zeroconf service name found"
160
" after %i retries, exiting.",
134
161
self.rename_count)
135
raise AvahiServiceError(u"Too many renames")
136
self.name = server.GetAlternativeServiceName(self.name)
137
logger.info(u"Changing Zeroconf service name to %r ...",
138
str(self.name))
162
raise AvahiServiceError("Too many renames")
163
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
164
logger.info("Changing Zeroconf service name to %r ...",
165
self.name)
139
166
syslogger.setFormatter(logging.Formatter
140
('Mandos (%s): %%(levelname)s:'
141
' %%(message)s' % self.name))
167
('Mandos (%s) [%%(process)d]:'
168
' %%(levelname)s: %%(message)s'
169
% self.name))
142
170
self.remove()
143
self.add()
171
try:
172
self.add()
173
except dbus.exceptions.DBusException as error:
174
logger.critical("DBusException: %s", error)
175
self.cleanup()
176
os._exit(1)
144
177
self.rename_count += 1
145
178
def remove(self):
146
179
"""Derived from the Avahi example code"""
147
if group is not None:
148
group.Reset()
180
if self.entry_group_state_changed_match is not None:
181
self.entry_group_state_changed_match.remove()
182
self.entry_group_state_changed_match = None
183
if self.group is not None:
184
self.group.Reset()
149
185
def add(self):
150
186
"""Derived from the Avahi example code"""
151
global group
152
if group is None:
153
group = dbus.Interface(bus.get_object
154
(avahi.DBUS_NAME,
155
server.EntryGroupNew()),
156
avahi.DBUS_INTERFACE_ENTRY_GROUP)
157
group.connect_to_signal('StateChanged',
158
entry_group_state_changed)
159
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
160
service.name, service.type)
161
group.AddService(
162
self.interface, # interface
163
self.protocol, # protocol
164
dbus.UInt32(0), # flags
165
self.name, self.type,
166
self.domain, self.host,
167
dbus.UInt16(self.port),
168
avahi.string_array_to_txt_array(self.TXT))
169
group.Commit()
170
171
# From the Avahi example code:
172
group = None # our entry group
173
# End of Avahi example code
174
175
176
def _datetime_to_dbus(dt, variant_level=0):
177
"""Convert a UTC datetime.datetime() to a D-Bus type."""
178
return dbus.String(dt.isoformat(), variant_level=variant_level)
179
180
181
class Client(dbus.service.Object):
187
self.remove()
188
if self.group is None:
189
self.group = dbus.Interface(
190
self.bus.get_object(avahi.DBUS_NAME,
191
self.server.EntryGroupNew()),
192
avahi.DBUS_INTERFACE_ENTRY_GROUP)
193
self.entry_group_state_changed_match = (
194
self.group.connect_to_signal(
195
'StateChanged', self .entry_group_state_changed))
196
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
197
self.name, self.type)
198
self.group.AddService(
199
self.interface,
200
self.protocol,
201
dbus.UInt32(0), # flags
202
self.name, self.type,
203
self.domain, self.host,
204
dbus.UInt16(self.port),
205
avahi.string_array_to_txt_array(self.TXT))
206
self.group.Commit()
207
def entry_group_state_changed(self, state, error):
208
"""Derived from the Avahi example code"""
209
logger.debug("Avahi entry group state change: %i", state)
210
211
if state == avahi.ENTRY_GROUP_ESTABLISHED:
212
logger.debug("Zeroconf service established.")
213
elif state == avahi.ENTRY_GROUP_COLLISION:
214
logger.info("Zeroconf service name collision.")
215
self.rename()
216
elif state == avahi.ENTRY_GROUP_FAILURE:
217
logger.critical("Avahi: Error in group state changed %s",
218
unicode(error))
219
raise AvahiGroupError("State changed: %s"
220
% unicode(error))
221
def cleanup(self):
222
"""Derived from the Avahi example code"""
223
if self.group is not None:
224
try:
225
self.group.Free()
226
except (dbus.exceptions.UnknownMethodException,
227
dbus.exceptions.DBusException) as e:
228
pass
229
self.group = None
230
self.remove()
231
def server_state_changed(self, state, error=None):
232
"""Derived from the Avahi example code"""
233
logger.debug("Avahi server state change: %i", state)
234
bad_states = { avahi.SERVER_INVALID:
235
"Zeroconf server invalid",
236
avahi.SERVER_REGISTERING: None,
237
avahi.SERVER_COLLISION:
238
"Zeroconf server name collision",
239
avahi.SERVER_FAILURE:
240
"Zeroconf server failure" }
241
if state in bad_states:
242
if bad_states[state] is not None:
243
if error is None:
244
logger.error(bad_states[state])
245
else:
246
logger.error(bad_states[state] + ": %r", error)
247
self.cleanup()
248
elif state == avahi.SERVER_RUNNING:
249
self.add()
250
else:
251
if error is None:
252
logger.debug("Unknown state: %r", state)
253
else:
254
logger.debug("Unknown state: %r: %r", state, error)
255
def activate(self):
256
"""Derived from the Avahi example code"""
257
if self.server is None:
258
self.server = dbus.Interface(
259
self.bus.get_object(avahi.DBUS_NAME,
260
avahi.DBUS_PATH_SERVER,
261
follow_name_owner_changes=True),
262
avahi.DBUS_INTERFACE_SERVER)
263
self.server.connect_to_signal("StateChanged",
264
self.server_state_changed)
265
self.server_state_changed(self.server.GetState())
266
267
268
def _timedelta_to_milliseconds(td):
269
"Convert a datetime.timedelta() to milliseconds"
270
return ((td.days * 24 * 60 * 60 * 1000)
271
+ (td.seconds * 1000)
272
+ (td.microseconds // 1000))
273
274
class Client(object):
182
275
"""A representation of a client host served by this server.
276
183
277
Attributes:
184
name: string; from the config file, used in log messages and
185
D-Bus identifiers
186
fingerprint: string (40 or 32 hexadecimal digits); used to
187
uniquely identify the client
188
secret: bytestring; sent verbatim (over TLS) to client
189
host: string; available for use by the checker command
190
created: datetime.datetime(); (UTC) object creation
191
last_enabled: datetime.datetime(); (UTC)
192
enabled: bool()
193
last_checked_ok: datetime.datetime(); (UTC) or None
194
timeout: datetime.timedelta(); How long from last_checked_ok
195
until this client is invalid
196
interval: datetime.timedelta(); How often to start a new checker
197
disable_hook: If set, called by disable() as disable_hook(self)
278
_approved: bool(); 'None' if not yet approved/disapproved
279
approval_delay: datetime.timedelta(); Time to wait for approval
280
approval_duration: datetime.timedelta(); Duration of one approval
198
281
checker: subprocess.Popen(); a running checker process used
199
282
to see if the client lives.
200
283
'None' if no process is running.
201
checker_initiator_tag: a gobject event source tag, or None
202
disable_initiator_tag: - '' -
203
checker_callback_tag: - '' -
204
checker_command: string; External command which is run to check if
205
client lives. %() expansions are done at
284
checker_callback_tag: a gobject event source tag, or None
285
checker_command: string; External command which is run to check
286
if client lives. %() expansions are done at
206
287
runtime with vars(self) as dict, so that for
207
288
instance %(name)s can be used in the command.
289
checker_initiator_tag: a gobject event source tag, or None
290
created: datetime.datetime(); (UTC) object creation
208
291
current_checker_command: string; current running checker_command
209
use_dbus: bool(); Whether to provide D-Bus interface and signals
210
dbus_object_path: dbus.ObjectPath ; only set if self.use_dbus
292
disable_hook: If set, called by disable() as disable_hook(self)
293
disable_initiator_tag: a gobject event source tag, or None
294
enabled: bool()
295
fingerprint: string (40 or 32 hexadecimal digits); used to
296
uniquely identify the client
297
host: string; available for use by the checker command
298
interval: datetime.timedelta(); How often to start a new checker
299
last_approval_request: datetime.datetime(); (UTC) or None
300
last_checked_ok: datetime.datetime(); (UTC) or None
301
last_enabled: datetime.datetime(); (UTC)
302
name: string; from the config file, used in log messages and
303
D-Bus identifiers
304
secret: bytestring; sent verbatim (over TLS) to client
305
timeout: datetime.timedelta(); How long from last_checked_ok
306
until this client is disabled
307
extended_timeout: extra long timeout when password has been sent
308
runtime_expansions: Allowed attributes for runtime expansion.
309
expires: datetime.datetime(); time (UTC) when a client will be
310
disabled, or None
211
311
"""
312
313
runtime_expansions = ("approval_delay", "approval_duration",
314
"created", "enabled", "fingerprint",
315
"host", "interval", "last_checked_ok",
316
"last_enabled", "name", "timeout")
317
212
318
def timeout_milliseconds(self):
213
319
"Return the 'timeout' attribute in milliseconds"
214
return ((self.timeout.days * 24 * 60 * 60 * 1000)
215
+ (self.timeout.seconds * 1000)
216
+ (self.timeout.microseconds // 1000))
320
return _timedelta_to_milliseconds(self.timeout)
321
322
def extended_timeout_milliseconds(self):
323
"Return the 'extended_timeout' attribute in milliseconds"
324
return _timedelta_to_milliseconds(self.extended_timeout)
217
325
218
326
def interval_milliseconds(self):
219
327
"Return the 'interval' attribute in milliseconds"
220
return ((self.interval.days * 24 * 60 * 60 * 1000)
221
+ (self.interval.seconds * 1000)
222
+ (self.interval.microseconds // 1000))
223
224
def __init__(self, name = None, disable_hook=None, config=None,
225
use_dbus=True):
328
return _timedelta_to_milliseconds(self.interval)
329
330
def approval_delay_milliseconds(self):
331
return _timedelta_to_milliseconds(self.approval_delay)
332
333
def __init__(self, name = None, disable_hook=None, config=None):
226
334
"""Note: the 'checker' key in 'config' sets the
227
335
'checker_command' attribute and *not* the 'checker'
228
336
attribute."""
229
337
self.name = name
230
338
if config is None:
231
339
config = {}
232
logger.debug(u"Creating client %r", self.name)
233
self.use_dbus = False # During __init__
340
logger.debug("Creating client %r", self.name)
234
341
# Uppercase and remove spaces from fingerprint for later
235
342
# comparison purposes with return value from the fingerprint()
236
343
# function
237
344
self.fingerprint = (config["fingerprint"].upper()
238
.replace(u" ", u""))
239
logger.debug(u" Fingerprint: %s", self.fingerprint)
345
.replace(" ", ""))
346
logger.debug(" Fingerprint: %s", self.fingerprint)
240
347
if "secret" in config:
241
self.secret = config["secret"].decode(u"base64")
348
self.secret = config["secret"].decode("base64")
242
349
elif "secfile" in config:
243
with closing(open(os.path.expanduser
244
(os.path.expandvars
245
(config["secfile"])))) as secfile:
350
with open(os.path.expanduser(os.path.expandvars
351
(config["secfile"])),
352
"rb") as secfile:
246
353
self.secret = secfile.read()
247
354
else:
248
raise TypeError(u"No secret or secfile for client %s"
355
raise TypeError("No secret or secfile for client %s"
249
356
% self.name)
250
357
self.host = config.get("host", "")
251
358
self.created = datetime.datetime.utcnow()
252
359
self.enabled = False
360
self.last_approval_request = None
253
361
self.last_enabled = None
254
362
self.last_checked_ok = None
255
363
self.timeout = string_to_delta(config["timeout"])
364
self.extended_timeout = string_to_delta(config["extended_timeout"])
256
365
self.interval = string_to_delta(config["interval"])
257
366
self.disable_hook = disable_hook
258
367
self.checker = None
259
368
self.checker_initiator_tag = None
260
369
self.disable_initiator_tag = None
370
self.expires = None
261
371
self.checker_callback_tag = None
262
372
self.checker_command = config["checker"]
263
373
self.current_checker_command = None
264
374
self.last_connect = None
265
# Only now, when this client is initialized, can it show up on
266
# the D-Bus
267
self.use_dbus = use_dbus
268
if self.use_dbus:
269
self.dbus_object_path = (dbus.ObjectPath
270
("/clients/"
271
+ self.name.replace(".", "_")))
272
dbus.service.Object.__init__(self, bus,
273
self.dbus_object_path)
375
self._approved = None
376
self.approved_by_default = config.get("approved_by_default",
377
True)
378
self.approvals_pending = 0
379
self.approval_delay = string_to_delta(
380
config["approval_delay"])
381
self.approval_duration = string_to_delta(
382
config["approval_duration"])
383
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
274
384
385
def send_changedstate(self):
386
self.changedstate.acquire()
387
self.changedstate.notify_all()
388
self.changedstate.release()
389
275
390
def enable(self):
276
391
"""Start this client's checker and timeout hooks"""
277
self.last_enabled = datetime.datetime.utcnow()
392
if getattr(self, "enabled", False):
393
# Already enabled
394
return
395
self.send_changedstate()
278
396
# Schedule a new checker to be started an 'interval' from now,
279
397
# and every interval from then on.
280
398
self.checker_initiator_tag = (gobject.timeout_add
281
399
(self.interval_milliseconds(),
282
400
self.start_checker))
283
# Also start a new checker *right now*.
284
self.start_checker()
285
401
# Schedule a disable() when 'timeout' has passed
402
self.expires = datetime.datetime.utcnow() + self.timeout
286
403
self.disable_initiator_tag = (gobject.timeout_add
287
404
(self.timeout_milliseconds(),
288
405
self.disable))
289
406
self.enabled = True
290
if self.use_dbus:
291
# Emit D-Bus signals
292
self.PropertyChanged(dbus.String(u"enabled"),
293
dbus.Boolean(True, variant_level=1))
294
self.PropertyChanged(dbus.String(u"last_enabled"),
295
(_datetime_to_dbus(self.last_enabled,
296
variant_level=1)))
407
self.last_enabled = datetime.datetime.utcnow()
408
# Also start a new checker *right now*.
409
self.start_checker()
297
410
298
def disable(self):
411
def disable(self, quiet=True):
299
412
"""Disable this client."""
300
413
if not getattr(self, "enabled", False):
301
414
return False
302
logger.info(u"Disabling client %s", self.name)
415
if not quiet:
416
self.send_changedstate()
417
if not quiet:
418
logger.info("Disabling client %s", self.name)
303
419
if getattr(self, "disable_initiator_tag", False):
304
420
gobject.source_remove(self.disable_initiator_tag)
305
421
self.disable_initiator_tag = None
422
self.expires = None
306
423
if getattr(self, "checker_initiator_tag", False):
307
424
gobject.source_remove(self.checker_initiator_tag)
308
425
self.checker_initiator_tag = None
310
427
if self.disable_hook:
311
428
self.disable_hook(self)
312
429
self.enabled = False
313
if self.use_dbus:
314
# Emit D-Bus signal
315
self.PropertyChanged(dbus.String(u"enabled"),
316
dbus.Boolean(False, variant_level=1))
317
430
# Do not run this again if called by a gobject.timeout_add
318
431
return False
319
432
325
438
"""The checker has completed, so take appropriate actions."""
326
439
self.checker_callback_tag = None
327
440
self.checker = None
328
if self.use_dbus:
329
# Emit D-Bus signal
330
self.PropertyChanged(dbus.String(u"checker_running"),
331
dbus.Boolean(False, variant_level=1))
332
441
if os.WIFEXITED(condition):
333
442
exitstatus = os.WEXITSTATUS(condition)
334
443
if exitstatus == 0:
335
logger.info(u"Checker for %(name)s succeeded",
444
logger.info("Checker for %(name)s succeeded",
336
445
vars(self))
337
446
self.checked_ok()
338
447
else:
339
logger.info(u"Checker for %(name)s failed",
448
logger.info("Checker for %(name)s failed",
340
449
vars(self))
341
if self.use_dbus:
342
# Emit D-Bus signal
343
self.CheckerCompleted(dbus.Int16(exitstatus),
344
dbus.Int64(condition),
345
dbus.String(command))
346
450
else:
347
logger.warning(u"Checker for %(name)s crashed?",
451
logger.warning("Checker for %(name)s crashed?",
348
452
vars(self))
349
if self.use_dbus:
350
# Emit D-Bus signal
351
self.CheckerCompleted(dbus.Int16(-1),
352
dbus.Int64(condition),
353
dbus.String(command))
354
453
355
def checked_ok(self):
454
def checked_ok(self, timeout=None):
356
455
"""Bump up the timeout for this client.
456
357
457
This should only be called when the client has been seen,
358
458
alive and well.
359
459
"""
460
if timeout is None:
461
timeout = self.timeout
360
462
self.last_checked_ok = datetime.datetime.utcnow()
361
463
gobject.source_remove(self.disable_initiator_tag)
464
self.expires = datetime.datetime.utcnow() + timeout
362
465
self.disable_initiator_tag = (gobject.timeout_add
363
(self.timeout_milliseconds(),
466
(_timedelta_to_milliseconds(timeout),
364
467
self.disable))
365
if self.use_dbus:
366
# Emit D-Bus signal
367
self.PropertyChanged(
368
dbus.String(u"last_checked_ok"),
369
(_datetime_to_dbus(self.last_checked_ok,
370
variant_level=1)))
468
469
def need_approval(self):
470
self.last_approval_request = datetime.datetime.utcnow()
371
471
372
472
def start_checker(self):
373
473
"""Start a new checker subprocess if one is not running.
474
374
475
If a checker already exists, leave it running and do
375
476
nothing."""
376
477
# The reason for not killing a running checker is that if we
379
480
# client would inevitably timeout, since no checker would get
380
481
# a chance to run to completion. If we instead leave running
381
482
# checkers alone, the checker would have to take more time
382
# than 'timeout' for the client to be declared invalid, which
383
# is as it should be.
483
# than 'timeout' for the client to be disabled, which is as it
484
# should be.
384
485
385
486
# If a checker exists, make sure it is not a zombie
386
if self.checker is not None:
487
try:
387
488
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
489
except (AttributeError, OSError) as error:
490
if (isinstance(error, OSError)
491
and error.errno != errno.ECHILD):
492
raise error
493
else:
388
494
if pid:
389
495
logger.warning("Checker was a zombie")
390
496
gobject.source_remove(self.checker_callback_tag)
397
503
command = self.checker_command % self.host
398
504
except TypeError:
399
505
# Escape attributes for the shell
400
escaped_attrs = dict((key, re.escape(str(val)))
401
for key, val in
402
vars(self).iteritems())
506
escaped_attrs = dict(
507
(attr,
508
re.escape(unicode(str(getattr(self, attr, "")),
509
errors=
510
'replace')))
511
for attr in
512
self.runtime_expansions)
513
403
514
try:
404
515
command = self.checker_command % escaped_attrs
405
except TypeError, error:
406
logger.error(u'Could not format string "%s":'
407
u' %s', self.checker_command, error)
516
except TypeError as error:
517
logger.error('Could not format string "%s":'
518
' %s', self.checker_command, error)
408
519
return True # Try again later
409
self.current_checker_command = command
520
self.current_checker_command = command
410
521
try:
411
logger.info(u"Starting checker %r for %s",
522
logger.info("Starting checker %r for %s",
412
523
command, self.name)
413
524
# We don't need to redirect stdout and stderr, since
414
525
# in normal mode, that is already done by daemon(),
417
528
self.checker = subprocess.Popen(command,
418
529
close_fds=True,
419
530
shell=True, cwd="/")
420
if self.use_dbus:
421
# Emit D-Bus signal
422
self.CheckerStarted(command)
423
self.PropertyChanged(
424
dbus.String("checker_running"),
425
dbus.Boolean(True, variant_level=1))
426
531
self.checker_callback_tag = (gobject.child_watch_add
427
532
(self.checker.pid,
428
533
self.checker_callback,
433
538
if pid:
434
539
gobject.source_remove(self.checker_callback_tag)
435
540
self.checker_callback(pid, status, command)
436
except OSError, error:
437
logger.error(u"Failed to start subprocess: %s",
541
except OSError as error:
542
logger.error("Failed to start subprocess: %s",
438
543
error)
439
544
# Re-run this periodically if run by gobject.timeout_add
440
545
return True
446
551
self.checker_callback_tag = None
447
552
if getattr(self, "checker", None) is None:
448
553
return
449
logger.debug(u"Stopping checker for %(name)s", vars(self))
554
logger.debug("Stopping checker for %(name)s", vars(self))
450
555
try:
451
556
os.kill(self.checker.pid, signal.SIGTERM)
452
#os.sleep(0.5)
557
#time.sleep(0.5)
453
558
#if self.checker.poll() is None:
454
559
# os.kill(self.checker.pid, signal.SIGKILL)
455
except OSError, error:
560
except OSError as error:
456
561
if error.errno != errno.ESRCH: # No such process
457
562
raise
458
563
self.checker = None
459
if self.use_dbus:
460
self.PropertyChanged(dbus.String(u"checker_running"),
461
dbus.Boolean(False, variant_level=1))
462
463
def still_valid(self):
464
"""Has the timeout not yet passed for this client?"""
465
if not getattr(self, "enabled", False):
466
return False
467
now = datetime.datetime.utcnow()
468
if self.last_checked_ok is None:
469
return now < (self.created + self.timeout)
470
else:
471
return now < (self.last_checked_ok + self.timeout)
472
473
## D-Bus methods & signals
474
_interface = u"se.bsnet.fukt.Mandos.Client"
475
476
# CheckedOK - method
477
CheckedOK = dbus.service.method(_interface)(checked_ok)
478
CheckedOK.__name__ = "CheckedOK"
564
565
566
def dbus_service_property(dbus_interface, signature="v",
567
access="readwrite", byte_arrays=False):
568
"""Decorators for marking methods of a DBusObjectWithProperties to
569
become properties on the D-Bus.
570
571
The decorated method will be called with no arguments by "Get"
572
and with one argument by "Set".
573
574
The parameters, where they are supported, are the same as
575
dbus.service.method, except there is only "signature", since the
576
type from Get() and the type sent to Set() is the same.
577
"""
578
# Encoding deeply encoded byte arrays is not supported yet by the
579
# "Set" method, so we fail early here:
580
if byte_arrays and signature != "ay":
581
raise ValueError("Byte arrays not supported for non-'ay'"
582
" signature %r" % signature)
583
def decorator(func):
584
func._dbus_is_property = True
585
func._dbus_interface = dbus_interface
586
func._dbus_signature = signature
587
func._dbus_access = access
588
func._dbus_name = func.__name__
589
if func._dbus_name.endswith("_dbus_property"):
590
func._dbus_name = func._dbus_name[:-14]
591
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
592
return func
593
return decorator
594
595
596
class DBusPropertyException(dbus.exceptions.DBusException):
597
"""A base class for D-Bus property-related exceptions
598
"""
599
def __unicode__(self):
600
return unicode(str(self))
601
602
603
class DBusPropertyAccessException(DBusPropertyException):
604
"""A property's access permissions disallows an operation.
605
"""
606
pass
607
608
609
class DBusPropertyNotFound(DBusPropertyException):
610
"""An attempt was made to access a non-existing property.
611
"""
612
pass
613
614
615
class DBusObjectWithProperties(dbus.service.Object):
616
"""A D-Bus object with properties.
617
618
Classes inheriting from this can use the dbus_service_property
619
decorator to expose methods as D-Bus properties. It exposes the
620
standard Get(), Set(), and GetAll() methods on the D-Bus.
621
"""
622
623
@staticmethod
624
def _is_dbus_property(obj):
625
return getattr(obj, "_dbus_is_property", False)
626
627
def _get_all_dbus_properties(self):
628
"""Returns a generator of (name, attribute) pairs
629
"""
630
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
631
for cls in self.__class__.__mro__
632
for name, prop in inspect.getmembers(cls, self._is_dbus_property))
633
634
def _get_dbus_property(self, interface_name, property_name):
635
"""Returns a bound method if one exists which is a D-Bus
636
property with the specified name and interface.
637
"""
638
for cls in self.__class__.__mro__:
639
for name, value in inspect.getmembers(cls, self._is_dbus_property):
640
if value._dbus_name == property_name and value._dbus_interface == interface_name:
641
return value.__get__(self)
642
643
# No such property
644
raise DBusPropertyNotFound(self.dbus_object_path + ":"
645
+ interface_name + "."
646
+ property_name)
647
648
649
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
650
out_signature="v")
651
def Get(self, interface_name, property_name):
652
"""Standard D-Bus property Get() method, see D-Bus standard.
653
"""
654
prop = self._get_dbus_property(interface_name, property_name)
655
if prop._dbus_access == "write":
656
raise DBusPropertyAccessException(property_name)
657
value = prop()
658
if not hasattr(value, "variant_level"):
659
return value
660
return type(value)(value, variant_level=value.variant_level+1)
661
662
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
663
def Set(self, interface_name, property_name, value):
664
"""Standard D-Bus property Set() method, see D-Bus standard.
665
"""
666
prop = self._get_dbus_property(interface_name, property_name)
667
if prop._dbus_access == "read":
668
raise DBusPropertyAccessException(property_name)
669
if prop._dbus_get_args_options["byte_arrays"]:
670
# The byte_arrays option is not supported yet on
671
# signatures other than "ay".
672
if prop._dbus_signature != "ay":
673
raise ValueError
674
value = dbus.ByteArray(''.join(unichr(byte)
675
for byte in value))
676
prop(value)
677
678
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
679
out_signature="a{sv}")
680
def GetAll(self, interface_name):
681
"""Standard D-Bus property GetAll() method, see D-Bus
682
standard.
683
684
Note: Will not include properties with access="write".
685
"""
686
all = {}
687
for name, prop in self._get_all_dbus_properties():
688
if (interface_name
689
and interface_name != prop._dbus_interface):
690
# Interface non-empty but did not match
691
continue
692
# Ignore write-only properties
693
if prop._dbus_access == "write":
694
continue
695
value = prop()
696
if not hasattr(value, "variant_level"):
697
all[name] = value
698
continue
699
all[name] = type(value)(value, variant_level=
700
value.variant_level+1)
701
return dbus.Dictionary(all, signature="sv")
702
703
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
704
out_signature="s",
705
path_keyword='object_path',
706
connection_keyword='connection')
707
def Introspect(self, object_path, connection):
708
"""Standard D-Bus method, overloaded to insert property tags.
709
"""
710
xmlstring = dbus.service.Object.Introspect(self, object_path,
711
connection)
712
try:
713
document = xml.dom.minidom.parseString(xmlstring)
714
def make_tag(document, name, prop):
715
e = document.createElement("property")
716
e.setAttribute("name", name)
717
e.setAttribute("type", prop._dbus_signature)
718
e.setAttribute("access", prop._dbus_access)
719
return e
720
for if_tag in document.getElementsByTagName("interface"):
721
for tag in (make_tag(document, name, prop)
722
for name, prop
723
in self._get_all_dbus_properties()
724
if prop._dbus_interface
725
== if_tag.getAttribute("name")):
726
if_tag.appendChild(tag)
727
# Add the names to the return values for the
728
# "org.freedesktop.DBus.Properties" methods
729
if (if_tag.getAttribute("name")
730
== "org.freedesktop.DBus.Properties"):
731
for cn in if_tag.getElementsByTagName("method"):
732
if cn.getAttribute("name") == "Get":
733
for arg in cn.getElementsByTagName("arg"):
734
if (arg.getAttribute("direction")
735
== "out"):
736
arg.setAttribute("name", "value")
737
elif cn.getAttribute("name") == "GetAll":
738
for arg in cn.getElementsByTagName("arg"):
739
if (arg.getAttribute("direction")
740
== "out"):
741
arg.setAttribute("name", "props")
742
xmlstring = document.toxml("utf-8")
743
document.unlink()
744
except (AttributeError, xml.dom.DOMException,
745
xml.parsers.expat.ExpatError) as error:
746
logger.error("Failed to override Introspection method",
747
error)
748
return xmlstring
749
750
751
def datetime_to_dbus (dt, variant_level=0):
752
"""Convert a UTC datetime.datetime() to a D-Bus type."""
753
if dt is None:
754
return dbus.String("", variant_level = variant_level)
755
return dbus.String(dt.isoformat(),
756
variant_level=variant_level)
757
758
class transitional_dbus_metaclass(DBusObjectWithProperties.__metaclass__):
759
def __new__(mcs, name, bases, attr):
760
for attrname, old_dbusobj in inspect.getmembers(bases[0]):
761
new_interface = getattr(old_dbusobj, "_dbus_interface", "").replace("se.bsnet.fukt.", "se.recompile.")
762
if (getattr(old_dbusobj, "_dbus_is_signal", False)
763
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
764
unwrappedfunc = dict(zip(old_dbusobj.func_code.co_freevars,
765
old_dbusobj.__closure__))["func"].cell_contents
766
newfunc = types.FunctionType(unwrappedfunc.func_code,
767
unwrappedfunc.func_globals,
768
unwrappedfunc.func_name,
769
unwrappedfunc.func_defaults,
770
unwrappedfunc.func_closure)
771
new_dbusfunc = dbus.service.signal(
772
new_interface, old_dbusobj._dbus_signature)(newfunc)
773
attr["_transitional_" + attrname] = new_dbusfunc
774
775
def fixscope(func1, func2):
776
def newcall(*args, **kwargs):
777
func1(*args, **kwargs)
778
func2(*args, **kwargs)
779
return newcall
780
781
attr[attrname] = fixscope(old_dbusobj, new_dbusfunc)
782
783
elif (getattr(old_dbusobj, "_dbus_is_method", False)
784
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
785
new_dbusfunc = (dbus.service.method
786
(new_interface,
787
old_dbusobj._dbus_in_signature,
788
old_dbusobj._dbus_out_signature)
789
(types.FunctionType
790
(old_dbusobj.func_code,
791
old_dbusobj.func_globals,
792
old_dbusobj.func_name,
793
old_dbusobj.func_defaults,
794
old_dbusobj.func_closure)))
795
796
attr[attrname] = new_dbusfunc
797
elif (getattr(old_dbusobj, "_dbus_is_property", False)
798
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
799
new_dbusfunc = (dbus_service_property
800
(new_interface,
801
old_dbusobj._dbus_signature,
802
old_dbusobj._dbus_access,
803
old_dbusobj._dbus_get_args_options["byte_arrays"])
804
(types.FunctionType
805
(old_dbusobj.func_code,
806
old_dbusobj.func_globals,
807
old_dbusobj.func_name,
808
old_dbusobj.func_defaults,
809
old_dbusobj.func_closure)))
810
811
attr[attrname] = new_dbusfunc
812
return type.__new__(mcs, name, bases, attr)
813
814
class ClientDBus(Client, DBusObjectWithProperties):
815
"""A Client class using D-Bus
816
817
Attributes:
818
dbus_object_path: dbus.ObjectPath
819
bus: dbus.SystemBus()
820
"""
821
822
runtime_expansions = (Client.runtime_expansions
823
+ ("dbus_object_path",))
824
825
# dbus.service.Object doesn't use super(), so we can't either.
826
827
def __init__(self, bus = None, *args, **kwargs):
828
self._approvals_pending = 0
829
self.bus = bus
830
Client.__init__(self, *args, **kwargs)
831
# Only now, when this client is initialized, can it show up on
832
# the D-Bus
833
client_object_name = unicode(self.name).translate(
834
{ord("."): ord("_"),
835
ord("-"): ord("_")})
836
self.dbus_object_path = (dbus.ObjectPath
837
("/clients/" + client_object_name))
838
DBusObjectWithProperties.__init__(self, self.bus,
839
self.dbus_object_path)
840
841
def notifychangeproperty(transform_func,
842
dbus_name, type_func=lambda x: x,
843
variant_level=1):
844
""" Modify a variable so that its a property that announce its
845
changes to DBus.
846
transform_fun: Function that takes a value and transform it to
847
DBus type.
848
dbus_name: DBus name of the variable
849
type_func: Function that transform the value before sending it
850
to DBus
851
variant_level: DBus variant level. default: 1
852
"""
853
real_value = [None,]
854
def setter(self, value):
855
old_value = real_value[0]
856
real_value[0] = value
857
if hasattr(self, "dbus_object_path"):
858
if type_func(old_value) != type_func(real_value[0]):
859
dbus_value = transform_func(type_func(real_value[0]),
860
variant_level)
861
self.PropertyChanged(dbus.String(dbus_name),
862
dbus_value)
863
864
return property(lambda self: real_value[0], setter)
865
866
867
expires = notifychangeproperty(datetime_to_dbus, "Expires")
868
approvals_pending = notifychangeproperty(dbus.Boolean,
869
"ApprovalPending",
870
type_func = bool)
871
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
872
last_enabled = notifychangeproperty(datetime_to_dbus,
873
"LastEnabled")
874
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
875
type_func = lambda checker: checker is not None)
876
last_checked_ok = notifychangeproperty(datetime_to_dbus,
877
"LastCheckedOK")
878
last_approval_request = notifychangeproperty(datetime_to_dbus,
879
"LastApprovalRequest")
880
approved_by_default = notifychangeproperty(dbus.Boolean,
881
"ApprovedByDefault")
882
approval_delay = notifychangeproperty(dbus.UInt16, "ApprovalDelay",
883
type_func = _timedelta_to_milliseconds)
884
approval_duration = notifychangeproperty(dbus.UInt16, "ApprovalDuration",
885
type_func = _timedelta_to_milliseconds)
886
host = notifychangeproperty(dbus.String, "Host")
887
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
888
type_func = _timedelta_to_milliseconds)
889
extended_timeout = notifychangeproperty(dbus.UInt16, "ExtendedTimeout",
890
type_func = _timedelta_to_milliseconds)
891
interval = notifychangeproperty(dbus.UInt16, "Interval",
892
type_func = _timedelta_to_milliseconds)
893
checker_command = notifychangeproperty(dbus.String, "Checker")
894
895
del notifychangeproperty
896
897
def __del__(self, *args, **kwargs):
898
try:
899
self.remove_from_connection()
900
except LookupError:
901
pass
902
if hasattr(DBusObjectWithProperties, "__del__"):
903
DBusObjectWithProperties.__del__(self, *args, **kwargs)
904
Client.__del__(self, *args, **kwargs)
905
906
def checker_callback(self, pid, condition, command,
907
*args, **kwargs):
908
self.checker_callback_tag = None
909
self.checker = None
910
if os.WIFEXITED(condition):
911
exitstatus = os.WEXITSTATUS(condition)
912
# Emit D-Bus signal
913
self.CheckerCompleted(dbus.Int16(exitstatus),
914
dbus.Int64(condition),
915
dbus.String(command))
916
else:
917
# Emit D-Bus signal
918
self.CheckerCompleted(dbus.Int16(-1),
919
dbus.Int64(condition),
920
dbus.String(command))
921
922
return Client.checker_callback(self, pid, condition, command,
923
*args, **kwargs)
924
925
def start_checker(self, *args, **kwargs):
926
old_checker = self.checker
927
if self.checker is not None:
928
old_checker_pid = self.checker.pid
929
else:
930
old_checker_pid = None
931
r = Client.start_checker(self, *args, **kwargs)
932
# Only if new checker process was started
933
if (self.checker is not None
934
and old_checker_pid != self.checker.pid):
935
# Emit D-Bus signal
936
self.CheckerStarted(self.current_checker_command)
937
return r
938
939
def _reset_approved(self):
940
self._approved = None
941
return False
942
943
def approve(self, value=True):
944
self.send_changedstate()
945
self._approved = value
946
gobject.timeout_add(_timedelta_to_milliseconds
947
(self.approval_duration),
948
self._reset_approved)
949
950
951
## D-Bus methods, signals & properties
952
_interface = "se.bsnet.fukt.Mandos.Client"
953
954
## Signals
479
955
480
956
# CheckerCompleted - signal
481
957
@dbus.service.signal(_interface, signature="nxs")
489
965
"D-Bus signal"
490
966
pass
491
967
492
# GetAllProperties - method
493
@dbus.service.method(_interface, out_signature="a{sv}")
494
def GetAllProperties(self):
495
"D-Bus method"
496
return dbus.Dictionary({
497
dbus.String("name"):
498
dbus.String(self.name, variant_level=1),
499
dbus.String("fingerprint"):
500
dbus.String(self.fingerprint, variant_level=1),
501
dbus.String("host"):
502
dbus.String(self.host, variant_level=1),
503
dbus.String("created"):
504
_datetime_to_dbus(self.created, variant_level=1),
505
dbus.String("last_enabled"):
506
(_datetime_to_dbus(self.last_enabled,
507
variant_level=1)
508
if self.last_enabled is not None
509
else dbus.Boolean(False, variant_level=1)),
510
dbus.String("enabled"):
511
dbus.Boolean(self.enabled, variant_level=1),
512
dbus.String("last_checked_ok"):
513
(_datetime_to_dbus(self.last_checked_ok,
514
variant_level=1)
515
if self.last_checked_ok is not None
516
else dbus.Boolean (False, variant_level=1)),
517
dbus.String("timeout"):
518
dbus.UInt64(self.timeout_milliseconds(),
519
variant_level=1),
520
dbus.String("interval"):
521
dbus.UInt64(self.interval_milliseconds(),
522
variant_level=1),
523
dbus.String("checker"):
524
dbus.String(self.checker_command,
525
variant_level=1),
526
dbus.String("checker_running"):
527
dbus.Boolean(self.checker is not None,
528
variant_level=1),
529
dbus.String("object_path"):
530
dbus.ObjectPath(self.dbus_object_path,
531
variant_level=1)
532
}, signature="sv")
533
534
# IsStillValid - method
535
IsStillValid = (dbus.service.method(_interface, out_signature="b")
536
(still_valid))
537
IsStillValid.__name__ = "IsStillValid"
538
539
968
# PropertyChanged - signal
540
969
@dbus.service.signal(_interface, signature="sv")
541
970
def PropertyChanged(self, property, value):
542
971
"D-Bus signal"
543
972
pass
544
973
545
# SetChecker - method
546
@dbus.service.method(_interface, in_signature="s")
547
def SetChecker(self, checker):
548
"D-Bus setter method"
549
self.checker_command = checker
550
# Emit D-Bus signal
551
self.PropertyChanged(dbus.String(u"checker"),
552
dbus.String(self.checker_command,
553
variant_level=1))
554
555
# SetHost - method
556
@dbus.service.method(_interface, in_signature="s")
557
def SetHost(self, host):
558
"D-Bus setter method"
559
self.host = host
560
# Emit D-Bus signal
561
self.PropertyChanged(dbus.String(u"host"),
562
dbus.String(self.host, variant_level=1))
563
564
# SetInterval - method
565
@dbus.service.method(_interface, in_signature="t")
566
def SetInterval(self, milliseconds):
567
self.interval = datetime.timedelta(0, 0, 0, milliseconds)
568
# Emit D-Bus signal
569
self.PropertyChanged(dbus.String(u"interval"),
570
(dbus.UInt64(self.interval_milliseconds(),
571
variant_level=1)))
572
573
# SetSecret - method
574
@dbus.service.method(_interface, in_signature="ay",
575
byte_arrays=True)
576
def SetSecret(self, secret):
577
"D-Bus setter method"
578
self.secret = str(secret)
579
580
# SetTimeout - method
581
@dbus.service.method(_interface, in_signature="t")
582
def SetTimeout(self, milliseconds):
583
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
584
# Emit D-Bus signal
585
self.PropertyChanged(dbus.String(u"timeout"),
586
(dbus.UInt64(self.timeout_milliseconds(),
587
variant_level=1)))
974
# GotSecret - signal
975
@dbus.service.signal(_interface)
976
def GotSecret(self):
977
"""D-Bus signal
978
Is sent after a successful transfer of secret from the Mandos
979
server to mandos-client
980
"""
981
pass
982
983
# Rejected - signal
984
@dbus.service.signal(_interface, signature="s")
985
def Rejected(self, reason):
986
"D-Bus signal"
987
pass
988
989
# NeedApproval - signal
990
@dbus.service.signal(_interface, signature="tb")
991
def NeedApproval(self, timeout, default):
992
"D-Bus signal"
993
return self.need_approval()
994
995
## Methods
996
997
# Approve - method
998
@dbus.service.method(_interface, in_signature="b")
999
def Approve(self, value):
1000
self.approve(value)
1001
1002
# CheckedOK - method
1003
@dbus.service.method(_interface)
1004
def CheckedOK(self):
1005
self.checked_ok()
588
1006
589
1007
# Enable - method
590
Enable = dbus.service.method(_interface)(enable)
591
Enable.__name__ = "Enable"
1008
@dbus.service.method(_interface)
1009
def Enable(self):
1010
"D-Bus method"
1011
self.enable()
592
1012
593
1013
# StartChecker - method
594
1014
@dbus.service.method(_interface)
603
1023
self.disable()
604
1024
605
1025
# StopChecker - method
606
StopChecker = dbus.service.method(_interface)(stop_checker)
607
StopChecker.__name__ = "StopChecker"
1026
@dbus.service.method(_interface)
1027
def StopChecker(self):
1028
self.stop_checker()
1029
1030
## Properties
1031
1032
# ApprovalPending - property
1033
@dbus_service_property(_interface, signature="b", access="read")
1034
def ApprovalPending_dbus_property(self):
1035
return dbus.Boolean(bool(self.approvals_pending))
1036
1037
# ApprovedByDefault - property
1038
@dbus_service_property(_interface, signature="b",
1039
access="readwrite")
1040
def ApprovedByDefault_dbus_property(self, value=None):
1041
if value is None: # get
1042
return dbus.Boolean(self.approved_by_default)
1043
self.approved_by_default = bool(value)
1044
1045
# ApprovalDelay - property
1046
@dbus_service_property(_interface, signature="t",
1047
access="readwrite")
1048
def ApprovalDelay_dbus_property(self, value=None):
1049
if value is None: # get
1050
return dbus.UInt64(self.approval_delay_milliseconds())
1051
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1052
1053
# ApprovalDuration - property
1054
@dbus_service_property(_interface, signature="t",
1055
access="readwrite")
1056
def ApprovalDuration_dbus_property(self, value=None):
1057
if value is None: # get
1058
return dbus.UInt64(_timedelta_to_milliseconds(
1059
self.approval_duration))
1060
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1061
1062
# Name - property
1063
@dbus_service_property(_interface, signature="s", access="read")
1064
def Name_dbus_property(self):
1065
return dbus.String(self.name)
1066
1067
# Fingerprint - property
1068
@dbus_service_property(_interface, signature="s", access="read")
1069
def Fingerprint_dbus_property(self):
1070
return dbus.String(self.fingerprint)
1071
1072
# Host - property
1073
@dbus_service_property(_interface, signature="s",
1074
access="readwrite")
1075
def Host_dbus_property(self, value=None):
1076
if value is None: # get
1077
return dbus.String(self.host)
1078
self.host = value
1079
1080
# Created - property
1081
@dbus_service_property(_interface, signature="s", access="read")
1082
def Created_dbus_property(self):
1083
return dbus.String(datetime_to_dbus(self.created))
1084
1085
# LastEnabled - property
1086
@dbus_service_property(_interface, signature="s", access="read")
1087
def LastEnabled_dbus_property(self):
1088
return datetime_to_dbus(self.last_enabled)
1089
1090
# Enabled - property
1091
@dbus_service_property(_interface, signature="b",
1092
access="readwrite")
1093
def Enabled_dbus_property(self, value=None):
1094
if value is None: # get
1095
return dbus.Boolean(self.enabled)
1096
if value:
1097
self.enable()
1098
else:
1099
self.disable()
1100
1101
# LastCheckedOK - property
1102
@dbus_service_property(_interface, signature="s",
1103
access="readwrite")
1104
def LastCheckedOK_dbus_property(self, value=None):
1105
if value is not None:
1106
self.checked_ok()
1107
return
1108
return datetime_to_dbus(self.last_checked_ok)
1109
1110
# Expires - property
1111
@dbus_service_property(_interface, signature="s", access="read")
1112
def Expires_dbus_property(self):
1113
return datetime_to_dbus(self.expires)
1114
1115
# LastApprovalRequest - property
1116
@dbus_service_property(_interface, signature="s", access="read")
1117
def LastApprovalRequest_dbus_property(self):
1118
return datetime_to_dbus(self.last_approval_request)
1119
1120
# Timeout - property
1121
@dbus_service_property(_interface, signature="t",
1122
access="readwrite")
1123
def Timeout_dbus_property(self, value=None):
1124
if value is None: # get
1125
return dbus.UInt64(self.timeout_milliseconds())
1126
self.timeout = datetime.timedelta(0, 0, 0, value)
1127
if getattr(self, "disable_initiator_tag", None) is None:
1128
return
1129
# Reschedule timeout
1130
gobject.source_remove(self.disable_initiator_tag)
1131
self.disable_initiator_tag = None
1132
self.expires = None
1133
time_to_die = (self.
1134
_timedelta_to_milliseconds((self
1135
.last_checked_ok
1136
+ self.timeout)
1137
- datetime.datetime
1138
.utcnow()))
1139
if time_to_die <= 0:
1140
# The timeout has passed
1141
self.disable()
1142
else:
1143
self.expires = (datetime.datetime.utcnow()
1144
+ datetime.timedelta(milliseconds = time_to_die))
1145
self.disable_initiator_tag = (gobject.timeout_add
1146
(time_to_die, self.disable))
1147
1148
# ExtendedTimeout - property
1149
@dbus_service_property(_interface, signature="t",
1150
access="readwrite")
1151
def ExtendedTimeout_dbus_property(self, value=None):
1152
if value is None: # get
1153
return dbus.UInt64(self.extended_timeout_milliseconds())
1154
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1155
1156
# Interval - property
1157
@dbus_service_property(_interface, signature="t",
1158
access="readwrite")
1159
def Interval_dbus_property(self, value=None):
1160
if value is None: # get
1161
return dbus.UInt64(self.interval_milliseconds())
1162
self.interval = datetime.timedelta(0, 0, 0, value)
1163
if getattr(self, "checker_initiator_tag", None) is None:
1164
return
1165
# Reschedule checker run
1166
gobject.source_remove(self.checker_initiator_tag)
1167
self.checker_initiator_tag = (gobject.timeout_add
1168
(value, self.start_checker))
1169
self.start_checker() # Start one now, too
1170
1171
# Checker - property
1172
@dbus_service_property(_interface, signature="s",
1173
access="readwrite")
1174
def Checker_dbus_property(self, value=None):
1175
if value is None: # get
1176
return dbus.String(self.checker_command)
1177
self.checker_command = value
1178
1179
# CheckerRunning - property
1180
@dbus_service_property(_interface, signature="b",
1181
access="readwrite")
1182
def CheckerRunning_dbus_property(self, value=None):
1183
if value is None: # get
1184
return dbus.Boolean(self.checker is not None)
1185
if value:
1186
self.start_checker()
1187
else:
1188
self.stop_checker()
1189
1190
# ObjectPath - property
1191
@dbus_service_property(_interface, signature="o", access="read")
1192
def ObjectPath_dbus_property(self):
1193
return self.dbus_object_path # is already a dbus.ObjectPath
1194
1195
# Secret = property
1196
@dbus_service_property(_interface, signature="ay",
1197
access="write", byte_arrays=True)
1198
def Secret_dbus_property(self, value):
1199
self.secret = str(value)
608
1200
609
1201
del _interface
610
1202
611
1203
612
def peer_certificate(session):
613
"Return the peer's OpenPGP certificate as a bytestring"
614
# If not an OpenPGP certificate...
615
if (gnutls.library.functions
616
.gnutls_certificate_type_get(session._c_object)
617
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
618
# ...do the normal thing
619
return session.peer_certificate
620
list_size = ctypes.c_uint(1)
621
cert_list = (gnutls.library.functions
622
.gnutls_certificate_get_peers
623
(session._c_object, ctypes.byref(list_size)))
624
if not bool(cert_list) and list_size.value != 0:
625
raise gnutls.errors.GNUTLSError("error getting peer"
626
" certificate")
627
if list_size.value == 0:
628
return None
629
cert = cert_list[0]
630
return ctypes.string_at(cert.data, cert.size)
631
632
633
def fingerprint(openpgp):
634
"Convert an OpenPGP bytestring to a hexdigit fingerprint string"
635
# New GnuTLS "datum" with the OpenPGP public key
636
datum = (gnutls.library.types
637
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
638
ctypes.POINTER
639
(ctypes.c_ubyte)),
640
ctypes.c_uint(len(openpgp))))
641
# New empty GnuTLS certificate
642
crt = gnutls.library.types.gnutls_openpgp_crt_t()
643
(gnutls.library.functions
644
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
645
# Import the OpenPGP public key into the certificate
646
(gnutls.library.functions
647
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
648
gnutls.library.constants
649
.GNUTLS_OPENPGP_FMT_RAW))
650
# Verify the self signature in the key
651
crtverify = ctypes.c_uint()
652
(gnutls.library.functions
653
.gnutls_openpgp_crt_verify_self(crt, 0, ctypes.byref(crtverify)))
654
if crtverify.value != 0:
655
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
656
raise gnutls.errors.CertificateSecurityError("Verify failed")
657
# New buffer for the fingerprint
658
buf = ctypes.create_string_buffer(20)
659
buf_len = ctypes.c_size_t()
660
# Get the fingerprint from the certificate into the buffer
661
(gnutls.library.functions
662
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
663
ctypes.byref(buf_len)))
664
# Deinit the certificate
665
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
666
# Convert the buffer to a Python bytestring
667
fpr = ctypes.string_at(buf, buf_len.value)
668
# Convert the bytestring to hexadecimal notation
669
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
670
return hex_fpr
671
672
673
class TCP_handler(SocketServer.BaseRequestHandler, object):
674
"""A TCP request handler class.
675
Instantiated by IPv6_TCPServer for each request to handle it.
1204
class ProxyClient(object):
1205
def __init__(self, child_pipe, fpr, address):
1206
self._pipe = child_pipe
1207
self._pipe.send(('init', fpr, address))
1208
if not self._pipe.recv():
1209
raise KeyError()
1210
1211
def __getattribute__(self, name):
1212
if(name == '_pipe'):
1213
return super(ProxyClient, self).__getattribute__(name)
1214
self._pipe.send(('getattr', name))
1215
data = self._pipe.recv()
1216
if data[0] == 'data':
1217
return data[1]
1218
if data[0] == 'function':
1219
def func(*args, **kwargs):
1220
self._pipe.send(('funcall', name, args, kwargs))
1221
return self._pipe.recv()[1]
1222
return func
1223
1224
def __setattr__(self, name, value):
1225
if(name == '_pipe'):
1226
return super(ProxyClient, self).__setattr__(name, value)
1227
self._pipe.send(('setattr', name, value))
1228
1229
class ClientDBusTransitional(ClientDBus):
1230
__metaclass__ = transitional_dbus_metaclass
1231
1232
class ClientHandler(socketserver.BaseRequestHandler, object):
1233
"""A class to handle client connections.
1234
1235
Instantiated once for each connection to handle it.
676
1236
Note: This will run in its own forked process."""
677
1237
678
1238
def handle(self):
679
logger.info(u"TCP connection from: %s",
680
unicode(self.client_address))
681
session = (gnutls.connection
682
.ClientSession(self.request,
683
gnutls.connection
684
.X509Credentials()))
685
686
line = self.request.makefile().readline()
687
logger.debug(u"Protocol version: %r", line)
688
try:
689
if int(line.strip().split()[0]) > 1:
690
raise RuntimeError
691
except (ValueError, IndexError, RuntimeError), error:
692
logger.error(u"Unknown protocol version: %s", error)
693
return
694
695
# Note: gnutls.connection.X509Credentials is really a generic
696
# GnuTLS certificate credentials object so long as no X.509
697
# keys are added to it. Therefore, we can use it here despite
698
# using OpenPGP certificates.
699
700
#priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
701
# "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
702
# "+DHE-DSS"))
703
# Use a fallback default, since this MUST be set.
704
priority = self.server.settings.get("priority", "NORMAL")
705
(gnutls.library.functions
706
.gnutls_priority_set_direct(session._c_object,
707
priority, None))
708
709
try:
710
session.handshake()
711
except gnutls.errors.GNUTLSError, error:
712
logger.warning(u"Handshake failed: %s", error)
713
# Do not run session.bye() here: the session is not
714
# established. Just abandon the request.
715
return
716
logger.debug(u"Handshake succeeded")
717
try:
718
fpr = fingerprint(peer_certificate(session))
719
except (TypeError, gnutls.errors.GNUTLSError), error:
720
logger.warning(u"Bad certificate: %s", error)
721
session.bye()
722
return
723
logger.debug(u"Fingerprint: %s", fpr)
724
725
for c in self.server.clients:
726
if c.fingerprint == fpr:
727
client = c
728
break
729
else:
730
logger.warning(u"Client not found for fingerprint: %s",
731
fpr)
732
session.bye()
733
return
734
# Have to check if client.still_valid(), since it is possible
735
# that the client timed out while establishing the GnuTLS
736
# session.
737
if not client.still_valid():
738
logger.warning(u"Client %(name)s is invalid",
739
vars(client))
740
session.bye()
741
return
742
## This won't work here, since we're in a fork.
743
# client.checked_ok()
744
sent_size = 0
745
while sent_size < len(client.secret):
746
sent = session.send(client.secret[sent_size:])
747
logger.debug(u"Sent: %d, remaining: %d",
748
sent, len(client.secret)
749
- (sent_size + sent))
750
sent_size += sent
751
session.bye()
752
753
754
class IPv6_TCPServer(SocketServer.ForkingMixIn,
755
SocketServer.TCPServer, object):
1239
with contextlib.closing(self.server.child_pipe) as child_pipe:
1240
logger.info("TCP connection from: %s",
1241
unicode(self.client_address))
1242
logger.debug("Pipe FD: %d",
1243
self.server.child_pipe.fileno())
1244
1245
session = (gnutls.connection
1246
.ClientSession(self.request,
1247
gnutls.connection
1248
.X509Credentials()))
1249
1250
# Note: gnutls.connection.X509Credentials is really a
1251
# generic GnuTLS certificate credentials object so long as
1252
# no X.509 keys are added to it. Therefore, we can use it
1253
# here despite using OpenPGP certificates.
1254
1255
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1256
# "+AES-256-CBC", "+SHA1",
1257
# "+COMP-NULL", "+CTYPE-OPENPGP",
1258
# "+DHE-DSS"))
1259
# Use a fallback default, since this MUST be set.
1260
priority = self.server.gnutls_priority
1261
if priority is None:
1262
priority = "NORMAL"
1263
(gnutls.library.functions
1264
.gnutls_priority_set_direct(session._c_object,
1265
priority, None))
1266
1267
# Start communication using the Mandos protocol
1268
# Get protocol number
1269
line = self.request.makefile().readline()
1270
logger.debug("Protocol version: %r", line)
1271
try:
1272
if int(line.strip().split()[0]) > 1:
1273
raise RuntimeError
1274
except (ValueError, IndexError, RuntimeError) as error:
1275
logger.error("Unknown protocol version: %s", error)
1276
return
1277
1278
# Start GnuTLS connection
1279
try:
1280
session.handshake()
1281
except gnutls.errors.GNUTLSError as error:
1282
logger.warning("Handshake failed: %s", error)
1283
# Do not run session.bye() here: the session is not
1284
# established. Just abandon the request.
1285
return
1286
logger.debug("Handshake succeeded")
1287
1288
approval_required = False
1289
try:
1290
try:
1291
fpr = self.fingerprint(self.peer_certificate
1292
(session))
1293
except (TypeError,
1294
gnutls.errors.GNUTLSError) as error:
1295
logger.warning("Bad certificate: %s", error)
1296
return
1297
logger.debug("Fingerprint: %s", fpr)
1298
1299
try:
1300
client = ProxyClient(child_pipe, fpr,
1301
self.client_address)
1302
except KeyError:
1303
return
1304
1305
if client.approval_delay:
1306
delay = client.approval_delay
1307
client.approvals_pending += 1
1308
approval_required = True
1309
1310
while True:
1311
if not client.enabled:
1312
logger.info("Client %s is disabled",
1313
client.name)
1314
if self.server.use_dbus:
1315
# Emit D-Bus signal
1316
client.Rejected("Disabled")
1317
return
1318
1319
if client._approved or not client.approval_delay:
1320
#We are approved or approval is disabled
1321
break
1322
elif client._approved is None:
1323
logger.info("Client %s needs approval",
1324
client.name)
1325
if self.server.use_dbus:
1326
# Emit D-Bus signal
1327
client.NeedApproval(
1328
client.approval_delay_milliseconds(),
1329
client.approved_by_default)
1330
else:
1331
logger.warning("Client %s was not approved",
1332
client.name)
1333
if self.server.use_dbus:
1334
# Emit D-Bus signal
1335
client.Rejected("Denied")
1336
return
1337
1338
#wait until timeout or approved
1339
#x = float(client._timedelta_to_milliseconds(delay))
1340
time = datetime.datetime.now()
1341
client.changedstate.acquire()
1342
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1343
client.changedstate.release()
1344
time2 = datetime.datetime.now()
1345
if (time2 - time) >= delay:
1346
if not client.approved_by_default:
1347
logger.warning("Client %s timed out while"
1348
" waiting for approval",
1349
client.name)
1350
if self.server.use_dbus:
1351
# Emit D-Bus signal
1352
client.Rejected("Approval timed out")
1353
return
1354
else:
1355
break
1356
else:
1357
delay -= time2 - time
1358
1359
sent_size = 0
1360
while sent_size < len(client.secret):
1361
try:
1362
sent = session.send(client.secret[sent_size:])
1363
except gnutls.errors.GNUTLSError as error:
1364
logger.warning("gnutls send failed")
1365
return
1366
logger.debug("Sent: %d, remaining: %d",
1367
sent, len(client.secret)
1368
- (sent_size + sent))
1369
sent_size += sent
1370
1371
logger.info("Sending secret to %s", client.name)
1372
# bump the timeout as if seen
1373
client.checked_ok(client.extended_timeout)
1374
if self.server.use_dbus:
1375
# Emit D-Bus signal
1376
client.GotSecret()
1377
1378
finally:
1379
if approval_required:
1380
client.approvals_pending -= 1
1381
try:
1382
session.bye()
1383
except gnutls.errors.GNUTLSError as error:
1384
logger.warning("GnuTLS bye failed")
1385
1386
@staticmethod
1387
def peer_certificate(session):
1388
"Return the peer's OpenPGP certificate as a bytestring"
1389
# If not an OpenPGP certificate...
1390
if (gnutls.library.functions
1391
.gnutls_certificate_type_get(session._c_object)
1392
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1393
# ...do the normal thing
1394
return session.peer_certificate
1395
list_size = ctypes.c_uint(1)
1396
cert_list = (gnutls.library.functions
1397
.gnutls_certificate_get_peers
1398
(session._c_object, ctypes.byref(list_size)))
1399
if not bool(cert_list) and list_size.value != 0:
1400
raise gnutls.errors.GNUTLSError("error getting peer"
1401
" certificate")
1402
if list_size.value == 0:
1403
return None
1404
cert = cert_list[0]
1405
return ctypes.string_at(cert.data, cert.size)
1406
1407
@staticmethod
1408
def fingerprint(openpgp):
1409
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1410
# New GnuTLS "datum" with the OpenPGP public key
1411
datum = (gnutls.library.types
1412
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1413
ctypes.POINTER
1414
(ctypes.c_ubyte)),
1415
ctypes.c_uint(len(openpgp))))
1416
# New empty GnuTLS certificate
1417
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1418
(gnutls.library.functions
1419
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1420
# Import the OpenPGP public key into the certificate
1421
(gnutls.library.functions
1422
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1423
gnutls.library.constants
1424
.GNUTLS_OPENPGP_FMT_RAW))
1425
# Verify the self signature in the key
1426
crtverify = ctypes.c_uint()
1427
(gnutls.library.functions
1428
.gnutls_openpgp_crt_verify_self(crt, 0,
1429
ctypes.byref(crtverify)))
1430
if crtverify.value != 0:
1431
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1432
raise (gnutls.errors.CertificateSecurityError
1433
("Verify failed"))
1434
# New buffer for the fingerprint
1435
buf = ctypes.create_string_buffer(20)
1436
buf_len = ctypes.c_size_t()
1437
# Get the fingerprint from the certificate into the buffer
1438
(gnutls.library.functions
1439
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1440
ctypes.byref(buf_len)))
1441
# Deinit the certificate
1442
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1443
# Convert the buffer to a Python bytestring
1444
fpr = ctypes.string_at(buf, buf_len.value)
1445
# Convert the bytestring to hexadecimal notation
1446
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1447
return hex_fpr
1448
1449
1450
class MultiprocessingMixIn(object):
1451
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1452
def sub_process_main(self, request, address):
1453
try:
1454
self.finish_request(request, address)
1455
except:
1456
self.handle_error(request, address)
1457
self.close_request(request)
1458
1459
def process_request(self, request, address):
1460
"""Start a new process to process the request."""
1461
multiprocessing.Process(target = self.sub_process_main,
1462
args = (request, address)).start()
1463
1464
1465
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1466
""" adds a pipe to the MixIn """
1467
def process_request(self, request, client_address):
1468
"""Overrides and wraps the original process_request().
1469
1470
This function creates a new pipe in self.pipe
1471
"""
1472
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1473
1474
super(MultiprocessingMixInWithPipe,
1475
self).process_request(request, client_address)
1476
self.child_pipe.close()
1477
self.add_pipe(parent_pipe)
1478
1479
def add_pipe(self, parent_pipe):
1480
"""Dummy function; override as necessary"""
1481
raise NotImplementedError
1482
1483
1484
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1485
socketserver.TCPServer, object):
756
1486
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1487
757
1488
Attributes:
758
settings: Server settings
759
clients: Set() of Client objects
760
1489
enabled: Boolean; whether this server is activated yet
1490
interface: None or a network interface name (string)
1491
use_ipv6: Boolean; to use IPv6 or not
761
1492
"""
762
address_family = socket.AF_INET6
763
def __init__(self, *args, **kwargs):
764
if "settings" in kwargs:
765
self.settings = kwargs["settings"]
766
del kwargs["settings"]
767
if "clients" in kwargs:
768
self.clients = kwargs["clients"]
769
del kwargs["clients"]
770
if "use_ipv6" in kwargs:
771
if not kwargs["use_ipv6"]:
772
self.address_family = socket.AF_INET
773
del kwargs["use_ipv6"]
774
self.enabled = False
775
super(IPv6_TCPServer, self).__init__(*args, **kwargs)
1493
def __init__(self, server_address, RequestHandlerClass,
1494
interface=None, use_ipv6=True):
1495
self.interface = interface
1496
if use_ipv6:
1497
self.address_family = socket.AF_INET6
1498
socketserver.TCPServer.__init__(self, server_address,
1499
RequestHandlerClass)
776
1500
def server_bind(self):
777
1501
"""This overrides the normal server_bind() function
778
1502
to bind to an interface if one was specified, and also NOT to
779
1503
bind to an address or port if they were not specified."""
780
if self.settings["interface"]:
781
# 25 is from /usr/include/asm-i486/socket.h
782
SO_BINDTODEVICE = getattr(socket, "SO_BINDTODEVICE", 25)
783
try:
784
self.socket.setsockopt(socket.SOL_SOCKET,
785
SO_BINDTODEVICE,
786
self.settings["interface"])
787
except socket.error, error:
788
if error[0] == errno.EPERM:
789
logger.error(u"No permission to"
790
u" bind to interface %s",
791
self.settings["interface"])
792
else:
793
raise
1504
if self.interface is not None:
1505
if SO_BINDTODEVICE is None:
1506
logger.error("SO_BINDTODEVICE does not exist;"
1507
" cannot bind to interface %s",
1508
self.interface)
1509
else:
1510
try:
1511
self.socket.setsockopt(socket.SOL_SOCKET,
1512
SO_BINDTODEVICE,
1513
str(self.interface
1514
+ '\0'))
1515
except socket.error as error:
1516
if error[0] == errno.EPERM:
1517
logger.error("No permission to"
1518
" bind to interface %s",
1519
self.interface)
1520
elif error[0] == errno.ENOPROTOOPT:
1521
logger.error("SO_BINDTODEVICE not available;"
1522
" cannot bind to interface %s",
1523
self.interface)
1524
else:
1525
raise
794
1526
# Only bind(2) the socket if we really need to.
795
1527
if self.server_address[0] or self.server_address[1]:
796
1528
if not self.server_address[0]:
803
1535
elif not self.server_address[1]:
804
1536
self.server_address = (self.server_address[0],
805
1537
0)
806
# if self.settings["interface"]:
1538
# if self.interface:
807
1539
# self.server_address = (self.server_address[0],
808
1540
# 0, # port
809
1541
# 0, # flowinfo
810
1542
# if_nametoindex
811
# (self.settings
812
# ["interface"]))
813
return super(IPv6_TCPServer, self).server_bind()
1543
# (self.interface))
1544
return socketserver.TCPServer.server_bind(self)
1545
1546
1547
class MandosServer(IPv6_TCPServer):
1548
"""Mandos server.
1549
1550
Attributes:
1551
clients: set of Client objects
1552
gnutls_priority GnuTLS priority string
1553
use_dbus: Boolean; to emit D-Bus signals or not
1554
1555
Assumes a gobject.MainLoop event loop.
1556
"""
1557
def __init__(self, server_address, RequestHandlerClass,
1558
interface=None, use_ipv6=True, clients=None,
1559
gnutls_priority=None, use_dbus=True):
1560
self.enabled = False
1561
self.clients = clients
1562
if self.clients is None:
1563
self.clients = set()
1564
self.use_dbus = use_dbus
1565
self.gnutls_priority = gnutls_priority
1566
IPv6_TCPServer.__init__(self, server_address,
1567
RequestHandlerClass,
1568
interface = interface,
1569
use_ipv6 = use_ipv6)
814
1570
def server_activate(self):
815
1571
if self.enabled:
816
return super(IPv6_TCPServer, self).server_activate()
1572
return socketserver.TCPServer.server_activate(self)
817
1573
def enable(self):
818
1574
self.enabled = True
1575
def add_pipe(self, parent_pipe):
1576
# Call "handle_ipc" for both data and EOF events
1577
gobject.io_add_watch(parent_pipe.fileno(),
1578
gobject.IO_IN | gobject.IO_HUP,
1579
functools.partial(self.handle_ipc,
1580
parent_pipe = parent_pipe))
1581
1582
def handle_ipc(self, source, condition, parent_pipe=None,
1583
client_object=None):
1584
condition_names = {
1585
gobject.IO_IN: "IN", # There is data to read.
1586
gobject.IO_OUT: "OUT", # Data can be written (without
1587
# blocking).
1588
gobject.IO_PRI: "PRI", # There is urgent data to read.
1589
gobject.IO_ERR: "ERR", # Error condition.
1590
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1591
# broken, usually for pipes and
1592
# sockets).
1593
}
1594
conditions_string = ' | '.join(name
1595
for cond, name in
1596
condition_names.iteritems()
1597
if cond & condition)
1598
# error or the other end of multiprocessing.Pipe has closed
1599
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1600
return False
1601
1602
# Read a request from the child
1603
request = parent_pipe.recv()
1604
command = request[0]
1605
1606
if command == 'init':
1607
fpr = request[1]
1608
address = request[2]
1609
1610
for c in self.clients:
1611
if c.fingerprint == fpr:
1612
client = c
1613
break
1614
else:
1615
logger.info("Client not found for fingerprint: %s, ad"
1616
"dress: %s", fpr, address)
1617
if self.use_dbus:
1618
# Emit D-Bus signal
1619
mandos_dbus_service.ClientNotFound(fpr, address[0])
1620
parent_pipe.send(False)
1621
return False
1622
1623
gobject.io_add_watch(parent_pipe.fileno(),
1624
gobject.IO_IN | gobject.IO_HUP,
1625
functools.partial(self.handle_ipc,
1626
parent_pipe = parent_pipe,
1627
client_object = client))
1628
parent_pipe.send(True)
1629
# remove the old hook in favor of the new above hook on same fileno
1630
return False
1631
if command == 'funcall':
1632
funcname = request[1]
1633
args = request[2]
1634
kwargs = request[3]
1635
1636
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1637
1638
if command == 'getattr':
1639
attrname = request[1]
1640
if callable(client_object.__getattribute__(attrname)):
1641
parent_pipe.send(('function',))
1642
else:
1643
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1644
1645
if command == 'setattr':
1646
attrname = request[1]
1647
value = request[2]
1648
setattr(client_object, attrname, value)
1649
1650
return True
819
1651
820
1652
821
1653
def string_to_delta(interval):
829
1661
datetime.timedelta(0, 3600)
830
1662
>>> string_to_delta('24h')
831
1663
datetime.timedelta(1)
832
>>> string_to_delta(u'1w')
1664
>>> string_to_delta('1w')
833
1665
datetime.timedelta(7)
834
1666
>>> string_to_delta('5m 30s')
835
1667
datetime.timedelta(0, 330)
839
1671
try:
840
1672
suffix = unicode(s[-1])
841
1673
value = int(s[:-1])
842
if suffix == u"d":
1674
if suffix == "d":
843
1675
delta = datetime.timedelta(value)
844
elif suffix == u"s":
1676
elif suffix == "s":
845
1677
delta = datetime.timedelta(0, value)
846
elif suffix == u"m":
1678
elif suffix == "m":
847
1679
delta = datetime.timedelta(0, 0, 0, 0, value)
848
elif suffix == u"h":
1680
elif suffix == "h":
849
1681
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
850
elif suffix == u"w":
1682
elif suffix == "w":
851
1683
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
852
1684
else:
853
raise ValueError
854
except (ValueError, IndexError):
855
raise ValueError
1685
raise ValueError("Unknown suffix %r" % suffix)
1686
except (ValueError, IndexError) as e:
1687
raise ValueError(*(e.args))
856
1688
timevalue += delta
857
1689
return timevalue
858
1690
859
1691
860
def server_state_changed(state):
861
"""Derived from the Avahi example code"""
862
if state == avahi.SERVER_COLLISION:
863
logger.error(u"Zeroconf server name collision")
864
service.remove()
865
elif state == avahi.SERVER_RUNNING:
866
service.add()
867
868
869
def entry_group_state_changed(state, error):
870
"""Derived from the Avahi example code"""
871
logger.debug(u"Avahi state change: %i", state)
872
873
if state == avahi.ENTRY_GROUP_ESTABLISHED:
874
logger.debug(u"Zeroconf service established.")
875
elif state == avahi.ENTRY_GROUP_COLLISION:
876
logger.warning(u"Zeroconf service name collision.")
877
service.rename()
878
elif state == avahi.ENTRY_GROUP_FAILURE:
879
logger.critical(u"Avahi: Error in group state changed %s",
880
unicode(error))
881
raise AvahiGroupError(u"State changed: %s" % unicode(error))
882
883
1692
def if_nametoindex(interface):
884
"""Call the C function if_nametoindex(), or equivalent"""
1693
"""Call the C function if_nametoindex(), or equivalent
1694
1695
Note: This function cannot accept a unicode string."""
885
1696
global if_nametoindex
886
1697
try:
887
1698
if_nametoindex = (ctypes.cdll.LoadLibrary
888
1699
(ctypes.util.find_library("c"))
889
1700
.if_nametoindex)
890
1701
except (OSError, AttributeError):
891
if "struct" not in sys.modules:
892
import struct
893
if "fcntl" not in sys.modules:
894
import fcntl
1702
logger.warning("Doing if_nametoindex the hard way")
895
1703
def if_nametoindex(interface):
896
1704
"Get an interface index the hard way, i.e. using fcntl()"
897
1705
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
898
with closing(socket.socket()) as s:
1706
with contextlib.closing(socket.socket()) as s:
899
1707
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
900
struct.pack("16s16x", interface))
901
interface_index = struct.unpack("I", ifreq[16:20])[0]
1708
struct.pack(str("16s16x"),
1709
interface))
1710
interface_index = struct.unpack(str("I"),
1711
ifreq[16:20])[0]
902
1712
return interface_index
903
1713
return if_nametoindex(interface)
904
1714
905
1715
906
1716
def daemon(nochdir = False, noclose = False):
907
1717
"""See daemon(3). Standard BSD Unix function.
1718
908
1719
This should really exist as os.daemon, but it doesn't (yet)."""
909
1720
if os.fork():
910
1721
sys.exit()
918
1729
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
919
1730
if not stat.S_ISCHR(os.fstat(null).st_mode):
920
1731
raise OSError(errno.ENODEV,
921
"/dev/null not a character device")
1732
"%s not a character device"
1733
% os.path.devnull)
922
1734
os.dup2(null, sys.stdin.fileno())
923
1735
os.dup2(null, sys.stdout.fileno())
924
1736
os.dup2(null, sys.stderr.fileno())
927
1739
928
1740
929
1741
def main():
930
parser = optparse.OptionParser(version = "%%prog %s" % version)
931
parser.add_option("-i", "--interface", type="string",
932
metavar="IF", help="Bind to interface IF")
933
parser.add_option("-a", "--address", type="string",
934
help="Address to listen for requests on")
935
parser.add_option("-p", "--port", type="int",
936
help="Port number to receive requests on")
937
parser.add_option("--check", action="store_true",
938
help="Run self-test")
939
parser.add_option("--debug", action="store_true",
940
help="Debug mode; run in foreground and log to"
941
" terminal")
942
parser.add_option("--priority", type="string", help="GnuTLS"
943
" priority string (see GnuTLS documentation)")
944
parser.add_option("--servicename", type="string", metavar="NAME",
945
help="Zeroconf service name")
946
parser.add_option("--configdir", type="string",
947
default="/etc/mandos", metavar="DIR",
948
help="Directory to search for configuration"
949
" files")
950
parser.add_option("--no-dbus", action="store_false",
951
dest="use_dbus",
952
help=optparse.SUPPRESS_HELP) # XXX: Not done yet
953
parser.add_option("--no-ipv6", action="store_false",
954
dest="use_ipv6", help="Do not use IPv6")
955
options = parser.parse_args()[0]
1742
1743
##################################################################
1744
# Parsing of options, both command line and config file
1745
1746
parser = argparse.ArgumentParser()
1747
parser.add_argument("-v", "--version", action="version",
1748
version = "%%(prog)s %s" % version,
1749
help="show version number and exit")
1750
parser.add_argument("-i", "--interface", metavar="IF",
1751
help="Bind to interface IF")
1752
parser.add_argument("-a", "--address",
1753
help="Address to listen for requests on")
1754
parser.add_argument("-p", "--port", type=int,
1755
help="Port number to receive requests on")
1756
parser.add_argument("--check", action="store_true",
1757
help="Run self-test")
1758
parser.add_argument("--debug", action="store_true",
1759
help="Debug mode; run in foreground and log"
1760
" to terminal")
1761
parser.add_argument("--debuglevel", metavar="LEVEL",
1762
help="Debug level for stdout output")
1763
parser.add_argument("--priority", help="GnuTLS"
1764
" priority string (see GnuTLS documentation)")
1765
parser.add_argument("--servicename",
1766
metavar="NAME", help="Zeroconf service name")
1767
parser.add_argument("--configdir",
1768
default="/etc/mandos", metavar="DIR",
1769
help="Directory to search for configuration"
1770
" files")
1771
parser.add_argument("--no-dbus", action="store_false",
1772
dest="use_dbus", help="Do not provide D-Bus"
1773
" system bus interface")
1774
parser.add_argument("--no-ipv6", action="store_false",
1775
dest="use_ipv6", help="Do not use IPv6")
1776
options = parser.parse_args()
956
1777
957
1778
if options.check:
958
1779
import doctest
969
1790
"servicename": "Mandos",
970
1791
"use_dbus": "True",
971
1792
"use_ipv6": "True",
1793
"debuglevel": "",
972
1794
}
973
1795
974
1796
# Parse config file for server-global settings
975
server_config = ConfigParser.SafeConfigParser(server_defaults)
1797
server_config = configparser.SafeConfigParser(server_defaults)
976
1798
del server_defaults
977
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1799
server_config.read(os.path.join(options.configdir,
1800
"mandos.conf"))
978
1801
# Convert the SafeConfigParser object to a dict
979
1802
server_settings = server_config.defaults()
980
1803
# Use the appropriate methods on the non-string config options
981
server_settings["debug"] = server_config.getboolean("DEFAULT",
982
"debug")
983
server_settings["use_dbus"] = server_config.getboolean("DEFAULT",
984
"use_dbus")
985
server_settings["use_ipv6"] = server_config.getboolean("DEFAULT",
986
"use_ipv6")
1804
for option in ("debug", "use_dbus", "use_ipv6"):
1805
server_settings[option] = server_config.getboolean("DEFAULT",
1806
option)
987
1807
if server_settings["port"]:
988
1808
server_settings["port"] = server_config.getint("DEFAULT",
989
1809
"port")
993
1813
# options, if set.
994
1814
for option in ("interface", "address", "port", "debug",
995
1815
"priority", "servicename", "configdir",
996
"use_dbus", "use_ipv6"):
1816
"use_dbus", "use_ipv6", "debuglevel"):
997
1817
value = getattr(options, option)
998
1818
if value is not None:
999
1819
server_settings[option] = value
1000
1820
del options
1821
# Force all strings to be unicode
1822
for option in server_settings.keys():
1823
if type(server_settings[option]) is str:
1824
server_settings[option] = unicode(server_settings[option])
1001
1825
# Now we have our good server settings in "server_settings"
1002
1826
1827
##################################################################
1828
1003
1829
# For convenience
1004
1830
debug = server_settings["debug"]
1831
debuglevel = server_settings["debuglevel"]
1005
1832
use_dbus = server_settings["use_dbus"]
1006
use_dbus = False # XXX: Not done yet
1007
1833
use_ipv6 = server_settings["use_ipv6"]
1008
1834
1009
if not debug:
1010
syslogger.setLevel(logging.WARNING)
1011
console.setLevel(logging.WARNING)
1012
1013
1835
if server_settings["servicename"] != "Mandos":
1014
1836
syslogger.setFormatter(logging.Formatter
1015
('Mandos (%s): %%(levelname)s:'
1016
' %%(message)s'
1837
('Mandos (%s) [%%(process)d]:'
1838
' %%(levelname)s: %%(message)s'
1017
1839
% server_settings["servicename"]))
1018
1840
1019
1841
# Parse config file with clients
1020
client_defaults = { "timeout": "1h",
1021
"interval": "5m",
1842
client_defaults = { "timeout": "5m",
1843
"extended_timeout": "15m",
1844
"interval": "2m",
1022
1845
"checker": "fping -q -- %%(host)s",
1023
1846
"host": "",
1847
"approval_delay": "0s",
1848
"approval_duration": "1s",
1024
1849
}
1025
client_config = ConfigParser.SafeConfigParser(client_defaults)
1850
client_config = configparser.SafeConfigParser(client_defaults)
1026
1851
client_config.read(os.path.join(server_settings["configdir"],
1027
1852
"clients.conf"))
1028
1853
1029
clients = Set()
1030
tcp_server = IPv6_TCPServer((server_settings["address"],
1031
server_settings["port"]),
1032
TCP_handler,
1033
settings=server_settings,
1034
clients=clients, use_ipv6=use_ipv6)
1035
pidfilename = "/var/run/mandos.pid"
1036
try:
1037
pidfile = open(pidfilename, "w")
1038
except IOError:
1039
logger.error("Could not open file %r", pidfilename)
1854
global mandos_dbus_service
1855
mandos_dbus_service = None
1856
1857
tcp_server = MandosServer((server_settings["address"],
1858
server_settings["port"]),
1859
ClientHandler,
1860
interface=(server_settings["interface"]
1861
or None),
1862
use_ipv6=use_ipv6,
1863
gnutls_priority=
1864
server_settings["priority"],
1865
use_dbus=use_dbus)
1866
if not debug:
1867
pidfilename = "/var/run/mandos.pid"
1868
try:
1869
pidfile = open(pidfilename, "w")
1870
except IOError:
1871
logger.error("Could not open file %r", pidfilename)
1040
1872
1041
1873
try:
1042
1874
uid = pwd.getpwnam("_mandos").pw_uid
1048
1880
except KeyError:
1049
1881
try:
1050
1882
uid = pwd.getpwnam("nobody").pw_uid
1051
gid = pwd.getpwnam("nogroup").pw_gid
1883
gid = pwd.getpwnam("nobody").pw_gid
1052
1884
except KeyError:
1053
1885
uid = 65534
1054
1886
gid = 65534
1055
1887
try:
1056
1888
os.setgid(gid)
1057
1889
os.setuid(uid)
1058
except OSError, error:
1890
except OSError as error:
1059
1891
if error[0] != errno.EPERM:
1060
1892
raise error
1061
1893
1062
# Enable all possible GnuTLS debugging
1894
if not debug and not debuglevel:
1895
syslogger.setLevel(logging.WARNING)
1896
console.setLevel(logging.WARNING)
1897
if debuglevel:
1898
level = getattr(logging, debuglevel.upper())
1899
syslogger.setLevel(level)
1900
console.setLevel(level)
1901
1063
1902
if debug:
1903
# Enable all possible GnuTLS debugging
1904
1064
1905
# "Use a log level over 10 to enable all debugging options."
1065
1906
# - GnuTLS manual
1066
1907
gnutls.library.functions.gnutls_global_set_log_level(11)
1071
1912
1072
1913
(gnutls.library.functions
1073
1914
.gnutls_global_set_log_function(debug_gnutls))
1915
1916
# Redirect stdin so all checkers get /dev/null
1917
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1918
os.dup2(null, sys.stdin.fileno())
1919
if null > 2:
1920
os.close(null)
1921
else:
1922
# No console logging
1923
logger.removeHandler(console)
1074
1924
1075
global service
1076
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1077
service = AvahiService(name = server_settings["servicename"],
1078
servicetype = "_mandos._tcp",
1079
protocol = protocol)
1080
if server_settings["interface"]:
1081
service.interface = (if_nametoindex
1082
(server_settings["interface"]))
1925
# Need to fork before connecting to D-Bus
1926
if not debug:
1927
# Close all input and output, do double fork, etc.
1928
daemon()
1083
1929
1084
1930
global main_loop
1085
global bus
1086
global server
1087
1931
# From the Avahi example code
1088
1932
DBusGMainLoop(set_as_default=True )
1089
1933
main_loop = gobject.MainLoop()
1090
1934
bus = dbus.SystemBus()
1091
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
1092
avahi.DBUS_PATH_SERVER),
1093
avahi.DBUS_INTERFACE_SERVER)
1094
1935
# End of Avahi example code
1095
1936
if use_dbus:
1096
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
1097
1098
clients.update(Set(Client(name = section,
1099
config
1100
= dict(client_config.items(section)),
1101
use_dbus = use_dbus)
1102
for section in client_config.sections()))
1103
if not clients:
1104
logger.warning(u"No clients defined")
1105
1106
if debug:
1107
# Redirect stdin so all checkers get /dev/null
1108
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1109
os.dup2(null, sys.stdin.fileno())
1110
if null > 2:
1111
os.close(null)
1112
else:
1113
# No console logging
1114
logger.removeHandler(console)
1115
# Close all input and output, do double fork, etc.
1116
daemon()
1117
1118
try:
1119
pid = os.getpid()
1120
pidfile.write(str(pid) + "\n")
1121
pidfile.close()
1122
del pidfile
1123
except IOError:
1124
logger.error(u"Could not write to file %r with PID %d",
1125
pidfilename, pid)
1126
except NameError:
1127
# "pidfile" was never created
1128
pass
1129
del pidfilename
1130
1131
def cleanup():
1132
"Cleanup function; run on exit"
1133
global group
1134
# From the Avahi example code
1135
if not group is None:
1136
group.Free()
1137
group = None
1138
# End of Avahi example code
1937
try:
1938
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1939
bus, do_not_queue=True)
1940
bus_name2 = dbus.service.BusName("se.recompile.Mandos",
1941
bus, do_not_queue=True)
1942
except dbus.exceptions.NameExistsException as e:
1943
logger.error(unicode(e) + ", disabling D-Bus")
1944
use_dbus = False
1945
server_settings["use_dbus"] = False
1946
tcp_server.use_dbus = False
1947
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1948
service = AvahiService(name = server_settings["servicename"],
1949
servicetype = "_mandos._tcp",
1950
protocol = protocol, bus = bus)
1951
if server_settings["interface"]:
1952
service.interface = (if_nametoindex
1953
(str(server_settings["interface"])))
1954
1955
global multiprocessing_manager
1956
multiprocessing_manager = multiprocessing.Manager()
1957
1958
client_class = Client
1959
if use_dbus:
1960
client_class = functools.partial(ClientDBusTransitional, bus = bus)
1961
def client_config_items(config, section):
1962
special_settings = {
1963
"approved_by_default":
1964
lambda: config.getboolean(section,
1965
"approved_by_default"),
1966
}
1967
for name, value in config.items(section):
1968
try:
1969
yield (name, special_settings[name]())
1970
except KeyError:
1971
yield (name, value)
1972
1973
tcp_server.clients.update(set(
1974
client_class(name = section,
1975
config= dict(client_config_items(
1976
client_config, section)))
1977
for section in client_config.sections()))
1978
if not tcp_server.clients:
1979
logger.warning("No clients defined")
1139
1980
1140
while clients:
1141
client = clients.pop()
1142
client.disable_hook = None
1143
client.disable()
1144
1145
atexit.register(cleanup)
1146
1147
1981
if not debug:
1982
try:
1983
with pidfile:
1984
pid = os.getpid()
1985
pidfile.write(str(pid) + "\n".encode("utf-8"))
1986
del pidfile
1987
except IOError:
1988
logger.error("Could not write to file %r with PID %d",
1989
pidfilename, pid)
1990
except NameError:
1991
# "pidfile" was never created
1992
pass
1993
del pidfilename
1994
1148
1995
signal.signal(signal.SIGINT, signal.SIG_IGN)
1996
1149
1997
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1150
1998
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1151
1999
1152
2000
if use_dbus:
1153
class MandosServer(dbus.service.Object):
2001
class MandosDBusService(dbus.service.Object):
1154
2002
"""A D-Bus proxy object"""
1155
2003
def __init__(self):
1156
2004
dbus.service.Object.__init__(self, bus, "/")
1157
_interface = u"se.bsnet.fukt.Mandos"
1158
1159
@dbus.service.signal(_interface, signature="oa{sv}")
1160
def ClientAdded(self, objpath, properties):
2005
_interface = "se.bsnet.fukt.Mandos"
2006
2007
@dbus.service.signal(_interface, signature="o")
2008
def ClientAdded(self, objpath):
2009
"D-Bus signal"
2010
pass
2011
2012
@dbus.service.signal(_interface, signature="ss")
2013
def ClientNotFound(self, fingerprint, address):
1161
2014
"D-Bus signal"
1162
2015
pass
1163
2016
1169
2022
@dbus.service.method(_interface, out_signature="ao")
1170
2023
def GetAllClients(self):
1171
2024
"D-Bus method"
1172
return dbus.Array(c.dbus_object_path for c in clients)
2025
return dbus.Array(c.dbus_object_path
2026
for c in tcp_server.clients)
1173
2027
1174
@dbus.service.method(_interface, out_signature="a{oa{sv}}")
2028
@dbus.service.method(_interface,
2029
out_signature="a{oa{sv}}")
1175
2030
def GetAllClientsWithProperties(self):
1176
2031
"D-Bus method"
1177
2032
return dbus.Dictionary(
1178
((c.dbus_object_path, c.GetAllProperties())
1179
for c in clients),
2033
((c.dbus_object_path, c.GetAll(""))
2034
for c in tcp_server.clients),
1180
2035
signature="oa{sv}")
1181
2036
1182
2037
@dbus.service.method(_interface, in_signature="o")
1183
2038
def RemoveClient(self, object_path):
1184
2039
"D-Bus method"
1185
for c in clients:
2040
for c in tcp_server.clients:
1186
2041
if c.dbus_object_path == object_path:
1187
clients.remove(c)
2042
tcp_server.clients.remove(c)
2043
c.remove_from_connection()
1188
2044
# Don't signal anything except ClientRemoved
1189
c.use_dbus = False
1190
c.disable()
2045
c.disable(quiet=True)
1191
2046
# Emit D-Bus signal
1192
2047
self.ClientRemoved(object_path, c.name)
1193
2048
return
1194
raise KeyError
2049
raise KeyError(object_path)
1195
2050
1196
2051
del _interface
1197
2052
1198
mandos_server = MandosServer()
1199
1200
for client in clients:
2053
class MandosDBusServiceTransitional(MandosDBusService):
2054
__metaclass__ = transitional_dbus_metaclass
2055
mandos_dbus_service = MandosDBusServiceTransitional()
2056
2057
def cleanup():
2058
"Cleanup function; run on exit"
2059
service.cleanup()
2060
2061
while tcp_server.clients:
2062
client = tcp_server.clients.pop()
2063
if use_dbus:
2064
client.remove_from_connection()
2065
client.disable_hook = None
2066
# Don't signal anything except ClientRemoved
2067
client.disable(quiet=True)
2068
if use_dbus:
2069
# Emit D-Bus signal
2070
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2071
client.name)
2072
2073
atexit.register(cleanup)
2074
2075
for client in tcp_server.clients:
1201
2076
if use_dbus:
1202
2077
# Emit D-Bus signal
1203
mandos_server.ClientAdded(client.dbus_object_path,
1204
client.GetAllProperties())
2078
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1205
2079
client.enable()
1206
2080
1207
2081
tcp_server.enable()
1210
2084
# Find out what port we got
1211
2085
service.port = tcp_server.socket.getsockname()[1]
1212
2086
if use_ipv6:
1213
logger.info(u"Now listening on address %r, port %d,"
2087
logger.info("Now listening on address %r, port %d,"
1214
2088
" flowinfo %d, scope_id %d"
1215
2089
% tcp_server.socket.getsockname())
1216
2090
else: # IPv4
1217
logger.info(u"Now listening on address %r, port %d"
2091
logger.info("Now listening on address %r, port %d"
1218
2092
% tcp_server.socket.getsockname())
1219
2093
1220
2094
#service.interface = tcp_server.socket.getsockname()[3]
1221
2095
1222
2096
try:
1223
2097
# From the Avahi example code
1224
server.connect_to_signal("StateChanged", server_state_changed)
1225
2098
try:
1226
server_state_changed(server.GetState())
1227
except dbus.exceptions.DBusException, error:
1228
logger.critical(u"DBusException: %s", error)
2099
service.activate()
2100
except dbus.exceptions.DBusException as error:
2101
logger.critical("DBusException: %s", error)
2102
cleanup()
1229
2103
sys.exit(1)
1230
2104
# End of Avahi example code
1231
2105
1234
2108
(tcp_server.handle_request
1235
2109
(*args[2:], **kwargs) or True))
1236
2110
1237
logger.debug(u"Starting main loop")
2111
logger.debug("Starting main loop")
1238
2112
main_loop.run()
1239
except AvahiError, error:
1240
logger.critical(u"AvahiError: %s", error)
2113
except AvahiError as error:
2114
logger.critical("AvahiError: %s", error)
2115
cleanup()
1241
2116
sys.exit(1)
1242
2117
except KeyboardInterrupt:
1243
2118
if debug:
1244
print >> sys.stderr
2119
print("", file=sys.stderr)
1245
2120
logger.debug("Server received KeyboardInterrupt")
1246
2121
logger.debug("Server exiting")
2122
# Must run before the D-Bus bus name gets deregistered
2123
cleanup()
2124
1247
2125
1248
2126
if __name__ == '__main__':
1249
2127
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0