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- Committer: Teddy Hogeborn
- Date: 2011-11-26 23:08:17 UTC
- mto: (237.12.8 mandos-persistent)
- mto: This revision was merged to the branch mainline in revision 290.
- Revision ID: teddy@recompile.se-20111126230817-tv08v831s2yltbkd
Make "enabled" a client config option.
* DBUS-API: Fix wording on "Expires" option.
* clients.conf (enabled): New.
* mandos (Client): "last_enabled" can now be None.
(Client.__init__): Get "enabled" from config. Only set
"last_enabled" and "expires" if enabled.
(ClientDBus.Created_dbus_property): Removed redundant dbus.String().
(ClientDBus.Interval_dbus_property): If changed, only reschedule
checker if enabled.
(main/special_settings): Added "enabled".
* mandos-clients.conf (OPTIONS): Added "enabled".
* DBUS-API: Fix wording on "Expires" option.
* clients.conf (enabled): New.
* mandos (Client): "last_enabled" can now be None.
(Client.__init__): Get "enabled" from config. Only set
"last_enabled" and "expires" if enabled.
(ClientDBus.Created_dbus_property): Removed redundant dbus.String().
(ClientDBus.Interval_dbus_property): If changed, only reschedule
checker if enabled.
(main/special_settings): Added "enabled".
* mandos-clients.conf (OPTIONS): Added "enabled".
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
#
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
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
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
66
import binascii
76
67
import tempfile
77
import itertools
78
import collections
79
import codecs
80
68
81
69
import dbus
82
70
import dbus.service
83
import gi
84
from gi.repository import GLib
71
import gobject
72
import avahi
85
73
from dbus.mainloop.glib import DBusGMainLoop
86
74
import ctypes
87
75
import ctypes.util
88
76
import xml.dom.minidom
89
77
import inspect
78
import GnuPGInterface
90
79
91
# Try to find the value of SO_BINDTODEVICE:
92
80
try:
93
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
94
# newer, and it is also the most natural place for it:
95
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
96
82
except AttributeError:
97
83
try:
98
# This is where SO_BINDTODEVICE was up to and including Python
99
# 2.6, and also 3.2:
100
84
from IN import SO_BINDTODEVICE
101
85
except ImportError:
102
# In Python 2.7 it seems to have been removed entirely.
103
# Try running the C preprocessor:
104
try:
105
cc = subprocess.Popen(["cc", "--language=c", "-E",
106
"/dev/stdin"],
107
stdin=subprocess.PIPE,
108
stdout=subprocess.PIPE)
109
stdout = cc.communicate(
110
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
111
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
112
except (OSError, ValueError, IndexError):
113
# No value found
114
SO_BINDTODEVICE = None
115
116
if sys.version_info.major == 2:
117
str = unicode
118
119
if sys.version_info < (3, 2):
120
configparser.Configparser = configparser.SafeConfigParser
121
122
version = "1.8.6"
86
SO_BINDTODEVICE = None
87
88
89
version = "1.4.1"
123
90
stored_state_file = "clients.pickle"
124
91
125
92
logger = logging.getLogger()
126
syslogger = None
93
syslogger = (logging.handlers.SysLogHandler
94
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
95
address = str("/dev/log")))
127
96
128
97
try:
129
if_nametoindex = ctypes.cdll.LoadLibrary(
130
ctypes.util.find_library("c")).if_nametoindex
98
if_nametoindex = (ctypes.cdll.LoadLibrary
99
(ctypes.util.find_library("c"))
100
.if_nametoindex)
131
101
except (OSError, AttributeError):
132
133
102
def if_nametoindex(interface):
134
103
"Get an interface index the hard way, i.e. using fcntl()"
135
104
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
136
105
with contextlib.closing(socket.socket()) as s:
137
106
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
138
struct.pack(b"16s16x", interface))
139
interface_index = struct.unpack("I", ifreq[16:20])[0]
107
struct.pack(str("16s16x"),
108
interface))
109
interface_index = struct.unpack(str("I"),
110
ifreq[16:20])[0]
140
111
return interface_index
141
112
142
113
143
def copy_function(func):
144
"""Make a copy of a function"""
145
if sys.version_info.major == 2:
146
return types.FunctionType(func.func_code,
147
func.func_globals,
148
func.func_name,
149
func.func_defaults,
150
func.func_closure)
151
else:
152
return types.FunctionType(func.__code__,
153
func.__globals__,
154
func.__name__,
155
func.__defaults__,
156
func.__closure__)
157
158
159
def initlogger(debug, level=logging.WARNING):
114
def initlogger(level=logging.WARNING):
160
115
"""init logger and add loglevel"""
161
162
global syslogger
163
syslogger = (logging.handlers.SysLogHandler(
164
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
165
address="/dev/log"))
116
166
117
syslogger.setFormatter(logging.Formatter
167
118
('Mandos [%(process)d]: %(levelname)s:'
168
119
' %(message)s'))
169
120
logger.addHandler(syslogger)
170
171
if debug:
172
console = logging.StreamHandler()
173
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
174
' [%(process)d]:'
175
' %(levelname)s:'
176
' %(message)s'))
177
logger.addHandler(console)
121
122
console = logging.StreamHandler()
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
124
' [%(process)d]:'
125
' %(levelname)s:'
126
' %(message)s'))
127
logger.addHandler(console)
178
128
logger.setLevel(level)
179
129
180
130
181
class PGPError(Exception):
182
"""Exception if encryption/decryption fails"""
131
class CryptoError(Exception):
183
132
pass
184
133
185
134
186
class PGPEngine(object):
135
class Crypto(object):
187
136
"""A simple class for OpenPGP symmetric encryption & decryption"""
188
189
137
def __init__(self):
138
self.gnupg = GnuPGInterface.GnuPG()
190
139
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
191
self.gpg = "gpg"
192
try:
193
output = subprocess.check_output(["gpgconf"])
194
for line in output.splitlines():
195
name, text, path = line.split(b":")
196
if name == "gpg":
197
self.gpg = path
198
break
199
except OSError as e:
200
if e.errno != errno.ENOENT:
201
raise
202
self.gnupgargs = ['--batch',
203
'--homedir', self.tempdir,
204
'--force-mdc',
205
'--quiet']
206
# Only GPG version 1 has the --no-use-agent option.
207
if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
208
self.gnupgargs.append("--no-use-agent")
209
140
self.gnupg = GnuPGInterface.GnuPG()
141
self.gnupg.options.meta_interactive = False
142
self.gnupg.options.homedir = self.tempdir
143
self.gnupg.options.extra_args.extend(['--force-mdc',
144
'--quiet'])
145
210
146
def __enter__(self):
211
147
return self
212
213
def __exit__(self, exc_type, exc_value, traceback):
148
149
def __exit__ (self, exc_type, exc_value, traceback):
214
150
self._cleanup()
215
151
return False
216
152
217
153
def __del__(self):
218
154
self._cleanup()
219
155
220
156
def _cleanup(self):
221
157
if self.tempdir is not None:
222
158
# Delete contents of tempdir
223
159
for root, dirs, files in os.walk(self.tempdir,
224
topdown=False):
160
topdown = False):
225
161
for filename in files:
226
162
os.remove(os.path.join(root, filename))
227
163
for dirname in dirs:
229
165
# Remove tempdir
230
166
os.rmdir(self.tempdir)
231
167
self.tempdir = None
232
168
233
169
def password_encode(self, password):
234
170
# Passphrase can not be empty and can not contain newlines or
235
171
# NUL bytes. So we prefix it and hex encode it.
236
encoded = b"mandos" + binascii.hexlify(password)
237
if len(encoded) > 2048:
238
# GnuPG can't handle long passwords, so encode differently
239
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
240
.replace(b"\n", b"\\n")
241
.replace(b"\0", b"\\x00"))
242
return encoded
243
172
return b"mandos" + binascii.hexlify(password)
173
244
174
def encrypt(self, data, password):
245
passphrase = self.password_encode(password)
246
with tempfile.NamedTemporaryFile(
247
dir=self.tempdir) as passfile:
248
passfile.write(passphrase)
249
passfile.flush()
250
proc = subprocess.Popen([self.gpg, '--symmetric',
251
'--passphrase-file',
252
passfile.name]
253
+ self.gnupgargs,
254
stdin=subprocess.PIPE,
255
stdout=subprocess.PIPE,
256
stderr=subprocess.PIPE)
257
ciphertext, err = proc.communicate(input=data)
258
if proc.returncode != 0:
259
raise PGPError(err)
175
self.gnupg.passphrase = self.password_encode(password)
176
with open(os.devnull) as devnull:
177
try:
178
proc = self.gnupg.run(['--symmetric'],
179
create_fhs=['stdin', 'stdout'],
180
attach_fhs={'stderr': devnull})
181
with contextlib.closing(proc.handles['stdin']) as f:
182
f.write(data)
183
with contextlib.closing(proc.handles['stdout']) as f:
184
ciphertext = f.read()
185
proc.wait()
186
except IOError as e:
187
raise CryptoError(e)
188
self.gnupg.passphrase = None
260
189
return ciphertext
261
190
262
191
def decrypt(self, data, password):
263
passphrase = self.password_encode(password)
264
with tempfile.NamedTemporaryFile(
265
dir=self.tempdir) as passfile:
266
passfile.write(passphrase)
267
passfile.flush()
268
proc = subprocess.Popen([self.gpg, '--decrypt',
269
'--passphrase-file',
270
passfile.name]
271
+ self.gnupgargs,
272
stdin=subprocess.PIPE,
273
stdout=subprocess.PIPE,
274
stderr=subprocess.PIPE)
275
decrypted_plaintext, err = proc.communicate(input=data)
276
if proc.returncode != 0:
277
raise PGPError(err)
192
self.gnupg.passphrase = self.password_encode(password)
193
with open(os.devnull) as devnull:
194
try:
195
proc = self.gnupg.run(['--decrypt'],
196
create_fhs=['stdin', 'stdout'],
197
attach_fhs={'stderr': devnull})
198
with contextlib.closing(proc.handles['stdin'] ) as f:
199
f.write(data)
200
with contextlib.closing(proc.handles['stdout']) as f:
201
decrypted_plaintext = f.read()
202
proc.wait()
203
except IOError as e:
204
raise CryptoError(e)
205
self.gnupg.passphrase = None
278
206
return decrypted_plaintext
279
207
280
208
281
# Pretend that we have an Avahi module
282
class avahi(object):
283
"""This isn't so much a class as it is a module-like namespace."""
284
IF_UNSPEC = -1 # avahi-common/address.h
285
PROTO_UNSPEC = -1 # avahi-common/address.h
286
PROTO_INET = 0 # avahi-common/address.h
287
PROTO_INET6 = 1 # avahi-common/address.h
288
DBUS_NAME = "org.freedesktop.Avahi"
289
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
290
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
291
DBUS_PATH_SERVER = "/"
292
293
@staticmethod
294
def string_array_to_txt_array(t):
295
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
296
for s in t), signature="ay")
297
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
298
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
299
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
300
SERVER_INVALID = 0 # avahi-common/defs.h
301
SERVER_REGISTERING = 1 # avahi-common/defs.h
302
SERVER_RUNNING = 2 # avahi-common/defs.h
303
SERVER_COLLISION = 3 # avahi-common/defs.h
304
SERVER_FAILURE = 4 # avahi-common/defs.h
305
306
209
307
210
class AvahiError(Exception):
308
211
def __init__(self, value, *args, **kwargs):
309
212
self.value = value
310
return super(AvahiError, self).__init__(value, *args,
311
**kwargs)
312
213
super(AvahiError, self).__init__(value, *args, **kwargs)
214
def __unicode__(self):
215
return unicode(repr(self.value))
313
216
314
217
class AvahiServiceError(AvahiError):
315
218
pass
316
219
317
318
220
class AvahiGroupError(AvahiError):
319
221
pass
320
222
321
223
322
224
class AvahiService(object):
323
225
"""An Avahi (Zeroconf) service.
324
226
325
227
Attributes:
326
228
interface: integer; avahi.IF_UNSPEC or an interface index.
327
229
Used to optionally bind to the specified interface.
328
230
name: string; Example: 'Mandos'
329
231
type: string; Example: '_mandos._tcp'.
330
See <https://www.iana.org/assignments/service-names-port-numbers>
232
See <http://www.dns-sd.org/ServiceTypes.html>
331
233
port: integer; what port to announce
332
234
TXT: list of strings; TXT record for the service
333
235
domain: string; Domain to publish on, default to .local if empty.
339
241
server: D-Bus Server
340
242
bus: dbus.SystemBus()
341
243
"""
342
343
def __init__(self,
344
interface=avahi.IF_UNSPEC,
345
name=None,
346
servicetype=None,
347
port=None,
348
TXT=None,
349
domain="",
350
host="",
351
max_renames=32768,
352
protocol=avahi.PROTO_UNSPEC,
353
bus=None):
244
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
245
servicetype = None, port = None, TXT = None,
246
domain = "", host = "", max_renames = 32768,
247
protocol = avahi.PROTO_UNSPEC, bus = None):
354
248
self.interface = interface
355
249
self.name = name
356
250
self.type = servicetype
365
259
self.server = None
366
260
self.bus = bus
367
261
self.entry_group_state_changed_match = None
368
369
def rename(self, remove=True):
262
def rename(self):
370
263
"""Derived from the Avahi example code"""
371
264
if self.rename_count >= self.max_renames:
372
265
logger.critical("No suitable Zeroconf service name found"
373
266
" after %i retries, exiting.",
374
267
self.rename_count)
375
268
raise AvahiServiceError("Too many renames")
376
self.name = str(
377
self.server.GetAlternativeServiceName(self.name))
378
self.rename_count += 1
269
self.name = unicode(self.server
270
.GetAlternativeServiceName(self.name))
379
271
logger.info("Changing Zeroconf service name to %r ...",
380
272
self.name)
381
if remove:
382
self.remove()
273
self.remove()
383
274
try:
384
275
self.add()
385
276
except dbus.exceptions.DBusException as error:
386
if (error.get_dbus_name()
387
== "org.freedesktop.Avahi.CollisionError"):
388
logger.info("Local Zeroconf service name collision.")
389
return self.rename(remove=False)
390
else:
391
logger.critical("D-Bus Exception", exc_info=error)
392
self.cleanup()
393
os._exit(1)
394
277
logger.critical("DBusException: %s", error)
278
self.cleanup()
279
os._exit(1)
280
self.rename_count += 1
395
281
def remove(self):
396
282
"""Derived from the Avahi example code"""
397
283
if self.entry_group_state_changed_match is not None:
399
285
self.entry_group_state_changed_match = None
400
286
if self.group is not None:
401
287
self.group.Reset()
402
403
288
def add(self):
404
289
"""Derived from the Avahi example code"""
405
290
self.remove()
422
307
dbus.UInt16(self.port),
423
308
avahi.string_array_to_txt_array(self.TXT))
424
309
self.group.Commit()
425
426
310
def entry_group_state_changed(self, state, error):
427
311
"""Derived from the Avahi example code"""
428
312
logger.debug("Avahi entry group state change: %i", state)
429
313
430
314
if state == avahi.ENTRY_GROUP_ESTABLISHED:
431
315
logger.debug("Zeroconf service established.")
432
316
elif state == avahi.ENTRY_GROUP_COLLISION:
434
318
self.rename()
435
319
elif state == avahi.ENTRY_GROUP_FAILURE:
436
320
logger.critical("Avahi: Error in group state changed %s",
437
str(error))
438
raise AvahiGroupError("State changed: {!s}".format(error))
439
321
unicode(error))
322
raise AvahiGroupError("State changed: %s"
323
% unicode(error))
440
324
def cleanup(self):
441
325
"""Derived from the Avahi example code"""
442
326
if self.group is not None:
447
331
pass
448
332
self.group = None
449
333
self.remove()
450
451
334
def server_state_changed(self, state, error=None):
452
335
"""Derived from the Avahi example code"""
453
336
logger.debug("Avahi server state change: %i", state)
454
bad_states = {
455
avahi.SERVER_INVALID: "Zeroconf server invalid",
456
avahi.SERVER_REGISTERING: None,
457
avahi.SERVER_COLLISION: "Zeroconf server name collision",
458
avahi.SERVER_FAILURE: "Zeroconf server failure",
459
}
337
bad_states = { avahi.SERVER_INVALID:
338
"Zeroconf server invalid",
339
avahi.SERVER_REGISTERING: None,
340
avahi.SERVER_COLLISION:
341
"Zeroconf server name collision",
342
avahi.SERVER_FAILURE:
343
"Zeroconf server failure" }
460
344
if state in bad_states:
461
345
if bad_states[state] is not None:
462
346
if error is None:
465
349
logger.error(bad_states[state] + ": %r", error)
466
350
self.cleanup()
467
351
elif state == avahi.SERVER_RUNNING:
468
try:
469
self.add()
470
except dbus.exceptions.DBusException as error:
471
if (error.get_dbus_name()
472
== "org.freedesktop.Avahi.CollisionError"):
473
logger.info("Local Zeroconf service name"
474
" collision.")
475
return self.rename(remove=False)
476
else:
477
logger.critical("D-Bus Exception", exc_info=error)
478
self.cleanup()
479
os._exit(1)
352
self.add()
480
353
else:
481
354
if error is None:
482
355
logger.debug("Unknown state: %r", state)
483
356
else:
484
357
logger.debug("Unknown state: %r: %r", state, error)
485
486
358
def activate(self):
487
359
"""Derived from the Avahi example code"""
488
360
if self.server is None:
492
364
follow_name_owner_changes=True),
493
365
avahi.DBUS_INTERFACE_SERVER)
494
366
self.server.connect_to_signal("StateChanged",
495
self.server_state_changed)
367
self.server_state_changed)
496
368
self.server_state_changed(self.server.GetState())
497
369
498
499
370
class AvahiServiceToSyslog(AvahiService):
500
def rename(self, *args, **kwargs):
371
def rename(self):
501
372
"""Add the new name to the syslog messages"""
502
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
503
syslogger.setFormatter(logging.Formatter(
504
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
505
.format(self.name)))
373
ret = AvahiService.rename(self)
374
syslogger.setFormatter(logging.Formatter
375
('Mandos (%s) [%%(process)d]:'
376
' %%(levelname)s: %%(message)s'
377
% self.name))
506
378
return ret
507
379
508
509
# Pretend that we have a GnuTLS module
510
class gnutls(object):
511
"""This isn't so much a class as it is a module-like namespace."""
512
513
library = ctypes.util.find_library("gnutls")
514
if library is None:
515
library = ctypes.util.find_library("gnutls-deb0")
516
_library = ctypes.cdll.LoadLibrary(library)
517
del library
518
519
# Unless otherwise indicated, the constants and types below are
520
# all from the gnutls/gnutls.h C header file.
521
522
# Constants
523
E_SUCCESS = 0
524
E_INTERRUPTED = -52
525
E_AGAIN = -28
526
CRT_OPENPGP = 2
527
CRT_RAWPK = 3
528
CLIENT = 2
529
SHUT_RDWR = 0
530
CRD_CERTIFICATE = 1
531
E_NO_CERTIFICATE_FOUND = -49
532
X509_FMT_DER = 0
533
NO_TICKETS = 1<<10
534
ENABLE_RAWPK = 1<<18
535
CTYPE_PEERS = 3
536
KEYID_USE_SHA256 = 1 # gnutls/x509.h
537
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
538
539
# Types
540
class session_int(ctypes.Structure):
541
_fields_ = []
542
session_t = ctypes.POINTER(session_int)
543
544
class certificate_credentials_st(ctypes.Structure):
545
_fields_ = []
546
certificate_credentials_t = ctypes.POINTER(
547
certificate_credentials_st)
548
certificate_type_t = ctypes.c_int
549
550
class datum_t(ctypes.Structure):
551
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
552
('size', ctypes.c_uint)]
553
554
class openpgp_crt_int(ctypes.Structure):
555
_fields_ = []
556
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
557
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
558
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
559
credentials_type_t = ctypes.c_int
560
transport_ptr_t = ctypes.c_void_p
561
close_request_t = ctypes.c_int
562
563
# Exceptions
564
class Error(Exception):
565
def __init__(self, message=None, code=None, args=()):
566
# Default usage is by a message string, but if a return
567
# code is passed, convert it to a string with
568
# gnutls.strerror()
569
self.code = code
570
if message is None and code is not None:
571
message = gnutls.strerror(code)
572
return super(gnutls.Error, self).__init__(
573
message, *args)
574
575
class CertificateSecurityError(Error):
576
pass
577
578
# Classes
579
class Credentials(object):
580
def __init__(self):
581
self._c_object = gnutls.certificate_credentials_t()
582
gnutls.certificate_allocate_credentials(
583
ctypes.byref(self._c_object))
584
self.type = gnutls.CRD_CERTIFICATE
585
586
def __del__(self):
587
gnutls.certificate_free_credentials(self._c_object)
588
589
class ClientSession(object):
590
def __init__(self, socket, credentials=None):
591
self._c_object = gnutls.session_t()
592
gnutls_flags = gnutls.CLIENT
593
if gnutls.check_version(b"3.5.6"):
594
gnutls_flags |= gnutls.NO_TICKETS
595
if gnutls.has_rawpk:
596
gnutls_flags |= gnutls.ENABLE_RAWPK
597
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
598
del gnutls_flags
599
gnutls.set_default_priority(self._c_object)
600
gnutls.transport_set_ptr(self._c_object, socket.fileno())
601
gnutls.handshake_set_private_extensions(self._c_object,
602
True)
603
self.socket = socket
604
if credentials is None:
605
credentials = gnutls.Credentials()
606
gnutls.credentials_set(self._c_object, credentials.type,
607
ctypes.cast(credentials._c_object,
608
ctypes.c_void_p))
609
self.credentials = credentials
610
611
def __del__(self):
612
gnutls.deinit(self._c_object)
613
614
def handshake(self):
615
return gnutls.handshake(self._c_object)
616
617
def send(self, data):
618
data = bytes(data)
619
data_len = len(data)
620
while data_len > 0:
621
data_len -= gnutls.record_send(self._c_object,
622
data[-data_len:],
623
data_len)
624
625
def bye(self):
626
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
627
628
# Error handling functions
629
def _error_code(result):
630
"""A function to raise exceptions on errors, suitable
631
for the 'restype' attribute on ctypes functions"""
632
if result >= 0:
633
return result
634
if result == gnutls.E_NO_CERTIFICATE_FOUND:
635
raise gnutls.CertificateSecurityError(code=result)
636
raise gnutls.Error(code=result)
637
638
def _retry_on_error(result, func, arguments):
639
"""A function to retry on some errors, suitable
640
for the 'errcheck' attribute on ctypes functions"""
641
while result < 0:
642
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
643
return _error_code(result)
644
result = func(*arguments)
645
return result
646
647
# Unless otherwise indicated, the function declarations below are
648
# all from the gnutls/gnutls.h C header file.
649
650
# Functions
651
priority_set_direct = _library.gnutls_priority_set_direct
652
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
653
ctypes.POINTER(ctypes.c_char_p)]
654
priority_set_direct.restype = _error_code
655
656
init = _library.gnutls_init
657
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
658
init.restype = _error_code
659
660
set_default_priority = _library.gnutls_set_default_priority
661
set_default_priority.argtypes = [session_t]
662
set_default_priority.restype = _error_code
663
664
record_send = _library.gnutls_record_send
665
record_send.argtypes = [session_t, ctypes.c_void_p,
666
ctypes.c_size_t]
667
record_send.restype = ctypes.c_ssize_t
668
record_send.errcheck = _retry_on_error
669
670
certificate_allocate_credentials = (
671
_library.gnutls_certificate_allocate_credentials)
672
certificate_allocate_credentials.argtypes = [
673
ctypes.POINTER(certificate_credentials_t)]
674
certificate_allocate_credentials.restype = _error_code
675
676
certificate_free_credentials = (
677
_library.gnutls_certificate_free_credentials)
678
certificate_free_credentials.argtypes = [
679
certificate_credentials_t]
680
certificate_free_credentials.restype = None
681
682
handshake_set_private_extensions = (
683
_library.gnutls_handshake_set_private_extensions)
684
handshake_set_private_extensions.argtypes = [session_t,
685
ctypes.c_int]
686
handshake_set_private_extensions.restype = None
687
688
credentials_set = _library.gnutls_credentials_set
689
credentials_set.argtypes = [session_t, credentials_type_t,
690
ctypes.c_void_p]
691
credentials_set.restype = _error_code
692
693
strerror = _library.gnutls_strerror
694
strerror.argtypes = [ctypes.c_int]
695
strerror.restype = ctypes.c_char_p
696
697
certificate_type_get = _library.gnutls_certificate_type_get
698
certificate_type_get.argtypes = [session_t]
699
certificate_type_get.restype = _error_code
700
701
certificate_get_peers = _library.gnutls_certificate_get_peers
702
certificate_get_peers.argtypes = [session_t,
703
ctypes.POINTER(ctypes.c_uint)]
704
certificate_get_peers.restype = ctypes.POINTER(datum_t)
705
706
global_set_log_level = _library.gnutls_global_set_log_level
707
global_set_log_level.argtypes = [ctypes.c_int]
708
global_set_log_level.restype = None
709
710
global_set_log_function = _library.gnutls_global_set_log_function
711
global_set_log_function.argtypes = [log_func]
712
global_set_log_function.restype = None
713
714
deinit = _library.gnutls_deinit
715
deinit.argtypes = [session_t]
716
deinit.restype = None
717
718
handshake = _library.gnutls_handshake
719
handshake.argtypes = [session_t]
720
handshake.restype = _error_code
721
handshake.errcheck = _retry_on_error
722
723
transport_set_ptr = _library.gnutls_transport_set_ptr
724
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
725
transport_set_ptr.restype = None
726
727
bye = _library.gnutls_bye
728
bye.argtypes = [session_t, close_request_t]
729
bye.restype = _error_code
730
bye.errcheck = _retry_on_error
731
732
check_version = _library.gnutls_check_version
733
check_version.argtypes = [ctypes.c_char_p]
734
check_version.restype = ctypes.c_char_p
735
736
_need_version = b"3.3.0"
737
if check_version(_need_version) is None:
738
raise self.Error("Needs GnuTLS {} or later"
739
.format(_need_version))
740
741
_tls_rawpk_version = b"3.6.6"
742
has_rawpk = bool(check_version(_tls_rawpk_version))
743
744
if has_rawpk:
745
# Types
746
class pubkey_st(ctypes.Structure):
747
_fields = []
748
pubkey_t = ctypes.POINTER(pubkey_st)
749
750
x509_crt_fmt_t = ctypes.c_int
751
752
# All the function declarations below are from gnutls/abstract.h
753
pubkey_init = _library.gnutls_pubkey_init
754
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
755
pubkey_init.restype = _error_code
756
757
pubkey_import = _library.gnutls_pubkey_import
758
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
759
x509_crt_fmt_t]
760
pubkey_import.restype = _error_code
761
762
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
763
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
764
ctypes.POINTER(ctypes.c_ubyte),
765
ctypes.POINTER(ctypes.c_size_t)]
766
pubkey_get_key_id.restype = _error_code
767
768
pubkey_deinit = _library.gnutls_pubkey_deinit
769
pubkey_deinit.argtypes = [pubkey_t]
770
pubkey_deinit.restype = None
771
else:
772
# All the function declarations below are from gnutls/openpgp.h
773
774
openpgp_crt_init = _library.gnutls_openpgp_crt_init
775
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
776
openpgp_crt_init.restype = _error_code
777
778
openpgp_crt_import = _library.gnutls_openpgp_crt_import
779
openpgp_crt_import.argtypes = [openpgp_crt_t,
780
ctypes.POINTER(datum_t),
781
openpgp_crt_fmt_t]
782
openpgp_crt_import.restype = _error_code
783
784
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
785
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
786
ctypes.POINTER(ctypes.c_uint)]
787
openpgp_crt_verify_self.restype = _error_code
788
789
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
790
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
791
openpgp_crt_deinit.restype = None
792
793
openpgp_crt_get_fingerprint = (
794
_library.gnutls_openpgp_crt_get_fingerprint)
795
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
796
ctypes.c_void_p,
797
ctypes.POINTER(
798
ctypes.c_size_t)]
799
openpgp_crt_get_fingerprint.restype = _error_code
800
801
if check_version(b"3.6.4"):
802
certificate_type_get2 = _library.gnutls_certificate_type_get2
803
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
804
certificate_type_get2.restype = _error_code
805
806
# Remove non-public functions
807
del _error_code, _retry_on_error
808
809
810
def call_pipe(connection, # : multiprocessing.Connection
811
func, *args, **kwargs):
812
"""This function is meant to be called by multiprocessing.Process
813
814
This function runs func(*args, **kwargs), and writes the resulting
815
return value on the provided multiprocessing.Connection.
816
"""
817
connection.send(func(*args, **kwargs))
818
connection.close()
819
820
380
def _timedelta_to_milliseconds(td):
381
"Convert a datetime.timedelta() to milliseconds"
382
return ((td.days * 24 * 60 * 60 * 1000)
383
+ (td.seconds * 1000)
384
+ (td.microseconds // 1000))
385
821
386
class Client(object):
822
387
"""A representation of a client host served by this server.
823
388
824
389
Attributes:
825
approved: bool(); 'None' if not yet approved/disapproved
390
_approved: bool(); 'None' if not yet approved/disapproved
826
391
approval_delay: datetime.timedelta(); Time to wait for approval
827
392
approval_duration: datetime.timedelta(); Duration of one approval
828
checker: multiprocessing.Process(); a running checker process used
829
to see if the client lives. 'None' if no process is
830
running.
831
checker_callback_tag: a GLib event source tag, or None
393
checker: subprocess.Popen(); a running checker process used
394
to see if the client lives.
395
'None' if no process is running.
396
checker_callback_tag: a gobject event source tag, or None
832
397
checker_command: string; External command which is run to check
833
398
if client lives. %() expansions are done at
834
399
runtime with vars(self) as dict, so that for
835
400
instance %(name)s can be used in the command.
836
checker_initiator_tag: a GLib event source tag, or None
401
checker_initiator_tag: a gobject event source tag, or None
837
402
created: datetime.datetime(); (UTC) object creation
838
403
client_structure: Object describing what attributes a client has
839
404
and is used for storing the client at exit
840
405
current_checker_command: string; current running checker_command
841
disable_initiator_tag: a GLib event source tag, or None
406
disable_initiator_tag: a gobject event source tag, or None
842
407
enabled: bool()
843
408
fingerprint: string (40 or 32 hexadecimal digits); used to
844
uniquely identify an OpenPGP client
845
key_id: string (64 hexadecimal digits); used to uniquely identify
846
a client using raw public keys
409
uniquely identify the client
847
410
host: string; available for use by the checker command
848
411
interval: datetime.timedelta(); How often to start a new checker
849
412
last_approval_request: datetime.datetime(); (UTC) or None
850
413
last_checked_ok: datetime.datetime(); (UTC) or None
414
851
415
last_checker_status: integer between 0 and 255 reflecting exit
852
416
status of last checker. -1 reflects crashed
853
checker, -2 means no checker completed yet.
854
last_checker_signal: The signal which killed the last checker, if
855
last_checker_status is -1
417
checker, or None.
856
418
last_enabled: datetime.datetime(); (UTC) or None
857
419
name: string; from the config file, used in log messages and
858
420
D-Bus identifiers
859
421
secret: bytestring; sent verbatim (over TLS) to client
860
422
timeout: datetime.timedelta(); How long from last_checked_ok
861
423
until this client is disabled
862
extended_timeout: extra long timeout when secret has been sent
424
extended_timeout: extra long timeout when password has been sent
863
425
runtime_expansions: Allowed attributes for runtime expansion.
864
426
expires: datetime.datetime(); time (UTC) when a client will be
865
427
disabled, or None
866
server_settings: The server_settings dict from main()
867
428
"""
868
429
869
430
runtime_expansions = ("approval_delay", "approval_duration",
870
"created", "enabled", "expires", "key_id",
871
"fingerprint", "host", "interval",
872
"last_approval_request", "last_checked_ok",
431
"created", "enabled", "fingerprint",
432
"host", "interval", "last_checked_ok",
873
433
"last_enabled", "name", "timeout")
874
client_defaults = {
875
"timeout": "PT5M",
876
"extended_timeout": "PT15M",
877
"interval": "PT2M",
878
"checker": "fping -q -- %%(host)s",
879
"host": "",
880
"approval_delay": "PT0S",
881
"approval_duration": "PT1S",
882
"approved_by_default": "True",
883
"enabled": "True",
884
}
885
886
@staticmethod
887
def config_parser(config):
888
"""Construct a new dict of client settings of this form:
889
{ client_name: {setting_name: value, ...}, ...}
890
with exceptions for any special settings as defined above.
891
NOTE: Must be a pure function. Must return the same result
892
value given the same arguments.
893
"""
894
settings = {}
895
for client_name in config.sections():
896
section = dict(config.items(client_name))
897
client = settings[client_name] = {}
898
899
client["host"] = section["host"]
900
# Reformat values from string types to Python types
901
client["approved_by_default"] = config.getboolean(
902
client_name, "approved_by_default")
903
client["enabled"] = config.getboolean(client_name,
904
"enabled")
905
906
# Uppercase and remove spaces from key_id and fingerprint
907
# for later comparison purposes with return value from the
908
# key_id() and fingerprint() functions
909
client["key_id"] = (section.get("key_id", "").upper()
910
.replace(" ", ""))
911
client["fingerprint"] = (section["fingerprint"].upper()
912
.replace(" ", ""))
913
if "secret" in section:
914
client["secret"] = codecs.decode(section["secret"]
915
.encode("utf-8"),
916
"base64")
917
elif "secfile" in section:
918
with open(os.path.expanduser(os.path.expandvars
919
(section["secfile"])),
920
"rb") as secfile:
921
client["secret"] = secfile.read()
922
else:
923
raise TypeError("No secret or secfile for section {}"
924
.format(section))
925
client["timeout"] = string_to_delta(section["timeout"])
926
client["extended_timeout"] = string_to_delta(
927
section["extended_timeout"])
928
client["interval"] = string_to_delta(section["interval"])
929
client["approval_delay"] = string_to_delta(
930
section["approval_delay"])
931
client["approval_duration"] = string_to_delta(
932
section["approval_duration"])
933
client["checker_command"] = section["checker"]
934
client["last_approval_request"] = None
935
client["last_checked_ok"] = None
936
client["last_checker_status"] = -2
937
938
return settings
939
940
def __init__(self, settings, name=None, server_settings=None):
434
435
def timeout_milliseconds(self):
436
"Return the 'timeout' attribute in milliseconds"
437
return _timedelta_to_milliseconds(self.timeout)
438
439
def extended_timeout_milliseconds(self):
440
"Return the 'extended_timeout' attribute in milliseconds"
441
return _timedelta_to_milliseconds(self.extended_timeout)
442
443
def interval_milliseconds(self):
444
"Return the 'interval' attribute in milliseconds"
445
return _timedelta_to_milliseconds(self.interval)
446
447
def approval_delay_milliseconds(self):
448
return _timedelta_to_milliseconds(self.approval_delay)
449
450
def __init__(self, name = None, config=None):
451
"""Note: the 'checker' key in 'config' sets the
452
'checker_command' attribute and *not* the 'checker'
453
attribute."""
941
454
self.name = name
942
if server_settings is None:
943
server_settings = {}
944
self.server_settings = server_settings
945
# adding all client settings
946
for setting, value in settings.items():
947
setattr(self, setting, value)
948
949
if self.enabled:
950
if not hasattr(self, "last_enabled"):
951
self.last_enabled = datetime.datetime.utcnow()
952
if not hasattr(self, "expires"):
953
self.expires = (datetime.datetime.utcnow()
954
+ self.timeout)
955
else:
956
self.last_enabled = None
957
self.expires = None
958
455
if config is None:
456
config = {}
959
457
logger.debug("Creating client %r", self.name)
960
logger.debug(" Key ID: %s", self.key_id)
458
# Uppercase and remove spaces from fingerprint for later
459
# comparison purposes with return value from the fingerprint()
460
# function
461
self.fingerprint = (config["fingerprint"].upper()
462
.replace(" ", ""))
961
463
logger.debug(" Fingerprint: %s", self.fingerprint)
962
self.created = settings.get("created",
963
datetime.datetime.utcnow())
964
965
# attributes specific for this server instance
464
if "secret" in config:
465
self.secret = config["secret"].decode("base64")
466
elif "secfile" in config:
467
with open(os.path.expanduser(os.path.expandvars
468
(config["secfile"])),
469
"rb") as secfile:
470
self.secret = secfile.read()
471
else:
472
raise TypeError("No secret or secfile for client %s"
473
% self.name)
474
self.host = config.get("host", "")
475
self.created = datetime.datetime.utcnow()
476
self.enabled = config.get("enabled", True)
477
self.last_approval_request = None
478
if self.enabled:
479
self.last_enabled = datetime.datetime.utcnow()
480
else:
481
self.last_enabled = None
482
self.last_checked_ok = None
483
self.last_checker_status = None
484
self.timeout = string_to_delta(config["timeout"])
485
self.extended_timeout = string_to_delta(config
486
["extended_timeout"])
487
self.interval = string_to_delta(config["interval"])
966
488
self.checker = None
967
489
self.checker_initiator_tag = None
968
490
self.disable_initiator_tag = None
491
if self.enabled:
492
self.expires = datetime.datetime.utcnow() + self.timeout
493
else:
494
self.expires = None
969
495
self.checker_callback_tag = None
496
self.checker_command = config["checker"]
970
497
self.current_checker_command = None
971
self.approved = None
498
self._approved = None
499
self.approved_by_default = config.get("approved_by_default",
500
True)
972
501
self.approvals_pending = 0
973
self.changedstate = multiprocessing_manager.Condition(
974
multiprocessing_manager.Lock())
975
self.client_structure = [attr
976
for attr in self.__dict__.keys()
502
self.approval_delay = string_to_delta(
503
config["approval_delay"])
504
self.approval_duration = string_to_delta(
505
config["approval_duration"])
506
self.changedstate = (multiprocessing_manager
507
.Condition(multiprocessing_manager
508
.Lock()))
509
self.client_structure = [attr for attr in
510
self.__dict__.iterkeys()
977
511
if not attr.startswith("_")]
978
512
self.client_structure.append("client_structure")
979
980
for name, t in inspect.getmembers(
981
type(self), lambda obj: isinstance(obj, property)):
513
514
for name, t in inspect.getmembers(type(self),
515
lambda obj:
516
isinstance(obj,
517
property)):
982
518
if not name.startswith("_"):
983
519
self.client_structure.append(name)
984
520
985
521
# Send notice to process children that client state has changed
986
522
def send_changedstate(self):
987
523
with self.changedstate:
988
524
self.changedstate.notify_all()
989
525
990
526
def enable(self):
991
527
"""Start this client's checker and timeout hooks"""
992
528
if getattr(self, "enabled", False):
993
529
# Already enabled
994
530
return
531
self.send_changedstate()
995
532
self.expires = datetime.datetime.utcnow() + self.timeout
996
533
self.enabled = True
997
534
self.last_enabled = datetime.datetime.utcnow()
998
535
self.init_checker()
999
self.send_changedstate()
1000
536
1001
537
def disable(self, quiet=True):
1002
538
"""Disable this client."""
1003
539
if not getattr(self, "enabled", False):
1004
540
return False
1005
541
if not quiet:
542
self.send_changedstate()
543
if not quiet:
1006
544
logger.info("Disabling client %s", self.name)
1007
if getattr(self, "disable_initiator_tag", None) is not None:
1008
GLib.source_remove(self.disable_initiator_tag)
545
if getattr(self, "disable_initiator_tag", False):
546
gobject.source_remove(self.disable_initiator_tag)
1009
547
self.disable_initiator_tag = None
1010
548
self.expires = None
1011
if getattr(self, "checker_initiator_tag", None) is not None:
1012
GLib.source_remove(self.checker_initiator_tag)
549
if getattr(self, "checker_initiator_tag", False):
550
gobject.source_remove(self.checker_initiator_tag)
1013
551
self.checker_initiator_tag = None
1014
552
self.stop_checker()
1015
553
self.enabled = False
1016
if not quiet:
1017
self.send_changedstate()
1018
# Do not run this again if called by a GLib.timeout_add
554
# Do not run this again if called by a gobject.timeout_add
1019
555
return False
1020
556
1021
557
def __del__(self):
1022
558
self.disable()
1023
559
1024
560
def init_checker(self):
1025
561
# Schedule a new checker to be started an 'interval' from now,
1026
562
# and every interval from then on.
1027
if self.checker_initiator_tag is not None:
1028
GLib.source_remove(self.checker_initiator_tag)
1029
self.checker_initiator_tag = GLib.timeout_add(
1030
int(self.interval.total_seconds() * 1000),
1031
self.start_checker)
563
self.checker_initiator_tag = (gobject.timeout_add
564
(self.interval_milliseconds(),
565
self.start_checker))
1032
566
# Schedule a disable() when 'timeout' has passed
1033
if self.disable_initiator_tag is not None:
1034
GLib.source_remove(self.disable_initiator_tag)
1035
self.disable_initiator_tag = GLib.timeout_add(
1036
int(self.timeout.total_seconds() * 1000), self.disable)
567
self.disable_initiator_tag = (gobject.timeout_add
568
(self.timeout_milliseconds(),
569
self.disable))
1037
570
# Also start a new checker *right now*.
1038
571
self.start_checker()
1039
1040
def checker_callback(self, source, condition, connection,
1041
command):
572
573
def checker_callback(self, pid, condition, command):
1042
574
"""The checker has completed, so take appropriate actions."""
1043
# Read return code from connection (see call_pipe)
1044
returncode = connection.recv()
1045
connection.close()
1046
self.checker.join()
1047
575
self.checker_callback_tag = None
1048
576
self.checker = None
1049
1050
if returncode >= 0:
1051
self.last_checker_status = returncode
1052
self.last_checker_signal = None
577
if os.WIFEXITED(condition):
578
self.last_checker_status = os.WEXITSTATUS(condition)
1053
579
if self.last_checker_status == 0:
1054
580
logger.info("Checker for %(name)s succeeded",
1055
581
vars(self))
1056
582
self.checked_ok()
1057
583
else:
1058
logger.info("Checker for %(name)s failed", vars(self))
584
logger.info("Checker for %(name)s failed",
585
vars(self))
1059
586
else:
1060
587
self.last_checker_status = -1
1061
self.last_checker_signal = -returncode
1062
588
logger.warning("Checker for %(name)s crashed?",
1063
589
vars(self))
1064
return False
1065
1066
def checked_ok(self):
1067
"""Assert that the client has been seen, alive and well."""
1068
self.last_checked_ok = datetime.datetime.utcnow()
1069
self.last_checker_status = 0
1070
self.last_checker_signal = None
1071
self.bump_timeout()
1072
1073
def bump_timeout(self, timeout=None):
1074
"""Bump up the timeout for this client."""
590
591
def checked_ok(self, timeout=None):
592
"""Bump up the timeout for this client.
593
594
This should only be called when the client has been seen,
595
alive and well.
596
"""
1075
597
if timeout is None:
1076
598
timeout = self.timeout
599
self.last_checked_ok = datetime.datetime.utcnow()
1077
600
if self.disable_initiator_tag is not None:
1078
GLib.source_remove(self.disable_initiator_tag)
1079
self.disable_initiator_tag = None
601
gobject.source_remove(self.disable_initiator_tag)
1080
602
if getattr(self, "enabled", False):
1081
self.disable_initiator_tag = GLib.timeout_add(
1082
int(timeout.total_seconds() * 1000), self.disable)
603
self.disable_initiator_tag = (gobject.timeout_add
604
(_timedelta_to_milliseconds
605
(timeout), self.disable))
1083
606
self.expires = datetime.datetime.utcnow() + timeout
1084
607
1085
608
def need_approval(self):
1086
609
self.last_approval_request = datetime.datetime.utcnow()
1087
610
1088
611
def start_checker(self):
1089
612
"""Start a new checker subprocess if one is not running.
1090
613
1091
614
If a checker already exists, leave it running and do
1092
615
nothing."""
1093
616
# The reason for not killing a running checker is that if we
1094
# did that, and if a checker (for some reason) started running
1095
# slowly and taking more than 'interval' time, then the client
1096
# would inevitably timeout, since no checker would get a
1097
# chance to run to completion. If we instead leave running
617
# did that, then if a checker (for some reason) started
618
# running slowly and taking more than 'interval' time, the
619
# client would inevitably timeout, since no checker would get
620
# a chance to run to completion. If we instead leave running
1098
621
# checkers alone, the checker would have to take more time
1099
622
# than 'timeout' for the client to be disabled, which is as it
1100
623
# should be.
1101
1102
if self.checker is not None and not self.checker.is_alive():
1103
logger.warning("Checker was not alive; joining")
1104
self.checker.join()
1105
self.checker = None
624
625
# If a checker exists, make sure it is not a zombie
626
try:
627
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
628
except (AttributeError, OSError) as error:
629
if (isinstance(error, OSError)
630
and error.errno != errno.ECHILD):
631
raise error
632
else:
633
if pid:
634
logger.warning("Checker was a zombie")
635
gobject.source_remove(self.checker_callback_tag)
636
self.checker_callback(pid, status,
637
self.current_checker_command)
1106
638
# Start a new checker if needed
1107
639
if self.checker is None:
1108
# Escape attributes for the shell
1109
escaped_attrs = {
1110
attr: re.escape(str(getattr(self, attr)))
1111
for attr in self.runtime_expansions}
1112
640
try:
1113
command = self.checker_command % escaped_attrs
1114
except TypeError as error:
1115
logger.error('Could not format string "%s"',
1116
self.checker_command,
1117
exc_info=error)
1118
return True # Try again later
641
# In case checker_command has exactly one % operator
642
command = self.checker_command % self.host
643
except TypeError:
644
# Escape attributes for the shell
645
escaped_attrs = dict(
646
(attr,
647
re.escape(unicode(str(getattr(self, attr, "")),
648
errors=
649
'replace')))
650
for attr in
651
self.runtime_expansions)
652
653
try:
654
command = self.checker_command % escaped_attrs
655
except TypeError as error:
656
logger.error('Could not format string "%s":'
657
' %s', self.checker_command, error)
658
return True # Try again later
1119
659
self.current_checker_command = command
1120
logger.info("Starting checker %r for %s", command,
1121
self.name)
1122
# We don't need to redirect stdout and stderr, since
1123
# in normal mode, that is already done by daemon(),
1124
# and in debug mode we don't want to. (Stdin is
1125
# always replaced by /dev/null.)
1126
# The exception is when not debugging but nevertheless
1127
# running in the foreground; use the previously
1128
# created wnull.
1129
popen_args = {"close_fds": True,
1130
"shell": True,
1131
"cwd": "/"}
1132
if (not self.server_settings["debug"]
1133
and self.server_settings["foreground"]):
1134
popen_args.update({"stdout": wnull,
1135
"stderr": wnull})
1136
pipe = multiprocessing.Pipe(duplex=False)
1137
self.checker = multiprocessing.Process(
1138
target=call_pipe,
1139
args=(pipe[1], subprocess.call, command),
1140
kwargs=popen_args)
1141
self.checker.start()
1142
self.checker_callback_tag = GLib.io_add_watch(
1143
pipe[0].fileno(), GLib.IO_IN,
1144
self.checker_callback, pipe[0], command)
1145
# Re-run this periodically if run by GLib.timeout_add
660
try:
661
logger.info("Starting checker %r for %s",
662
command, self.name)
663
# We don't need to redirect stdout and stderr, since
664
# in normal mode, that is already done by daemon(),
665
# and in debug mode we don't want to. (Stdin is
666
# always replaced by /dev/null.)
667
self.checker = subprocess.Popen(command,
668
close_fds=True,
669
shell=True, cwd="/")
670
self.checker_callback_tag = (gobject.child_watch_add
671
(self.checker.pid,
672
self.checker_callback,
673
data=command))
674
# The checker may have completed before the gobject
675
# watch was added. Check for this.
676
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
677
if pid:
678
gobject.source_remove(self.checker_callback_tag)
679
self.checker_callback(pid, status, command)
680
except OSError as error:
681
logger.error("Failed to start subprocess: %s",
682
error)
683
# Re-run this periodically if run by gobject.timeout_add
1146
684
return True
1147
685
1148
686
def stop_checker(self):
1149
687
"""Force the checker process, if any, to stop."""
1150
688
if self.checker_callback_tag:
1151
GLib.source_remove(self.checker_callback_tag)
689
gobject.source_remove(self.checker_callback_tag)
1152
690
self.checker_callback_tag = None
1153
691
if getattr(self, "checker", None) is None:
1154
692
return
1155
693
logger.debug("Stopping checker for %(name)s", vars(self))
1156
self.checker.terminate()
694
try:
695
os.kill(self.checker.pid, signal.SIGTERM)
696
#time.sleep(0.5)
697
#if self.checker.poll() is None:
698
# os.kill(self.checker.pid, signal.SIGKILL)
699
except OSError as error:
700
if error.errno != errno.ESRCH: # No such process
701
raise
1157
702
self.checker = None
1158
703
1159
704
1160
def dbus_service_property(dbus_interface,
1161
signature="v",
1162
access="readwrite",
1163
byte_arrays=False):
705
def dbus_service_property(dbus_interface, signature="v",
706
access="readwrite", byte_arrays=False):
1164
707
"""Decorators for marking methods of a DBusObjectWithProperties to
1165
708
become properties on the D-Bus.
1166
709
1167
710
The decorated method will be called with no arguments by "Get"
1168
711
and with one argument by "Set".
1169
712
1170
713
The parameters, where they are supported, are the same as
1171
714
dbus.service.method, except there is only "signature", since the
1172
715
type from Get() and the type sent to Set() is the same.
1175
718
# "Set" method, so we fail early here:
1176
719
if byte_arrays and signature != "ay":
1177
720
raise ValueError("Byte arrays not supported for non-'ay'"
1178
" signature {!r}".format(signature))
1179
721
" signature %r" % signature)
1180
722
def decorator(func):
1181
723
func._dbus_is_property = True
1182
724
func._dbus_interface = dbus_interface
1185
727
func._dbus_name = func.__name__
1186
728
if func._dbus_name.endswith("_dbus_property"):
1187
729
func._dbus_name = func._dbus_name[:-14]
1188
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1189
return func
1190
1191
return decorator
1192
1193
1194
def dbus_interface_annotations(dbus_interface):
1195
"""Decorator for marking functions returning interface annotations
1196
1197
Usage:
1198
1199
@dbus_interface_annotations("org.example.Interface")
1200
def _foo(self): # Function name does not matter
1201
return {"org.freedesktop.DBus.Deprecated": "true",
1202
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1203
"false"}
1204
"""
1205
1206
def decorator(func):
1207
func._dbus_is_interface = True
1208
func._dbus_interface = dbus_interface
1209
func._dbus_name = dbus_interface
1210
return func
1211
1212
return decorator
1213
1214
1215
def dbus_annotations(annotations):
1216
"""Decorator to annotate D-Bus methods, signals or properties
1217
Usage:
1218
1219
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1220
"org.freedesktop.DBus.Property."
1221
"EmitsChangedSignal": "false"})
1222
@dbus_service_property("org.example.Interface", signature="b",
1223
access="r")
1224
def Property_dbus_property(self):
1225
return dbus.Boolean(False)
1226
1227
See also the DBusObjectWithAnnotations class.
1228
"""
1229
1230
def decorator(func):
1231
func._dbus_annotations = annotations
1232
return func
1233
730
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
731
return func
1234
732
return decorator
1235
733
1236
734
1237
735
class DBusPropertyException(dbus.exceptions.DBusException):
1238
736
"""A base class for D-Bus property-related exceptions
1239
737
"""
1240
pass
738
def __unicode__(self):
739
return unicode(str(self))
1241
740
1242
741
1243
742
class DBusPropertyAccessException(DBusPropertyException):
1252
751
pass
1253
752
1254
753
1255
class DBusObjectWithAnnotations(dbus.service.Object):
1256
"""A D-Bus object with annotations.
1257
1258
Classes inheriting from this can use the dbus_annotations
1259
decorator to add annotations to methods or signals.
1260
"""
1261
1262
@staticmethod
1263
def _is_dbus_thing(thing):
1264
"""Returns a function testing if an attribute is a D-Bus thing
1265
1266
If called like _is_dbus_thing("method") it returns a function
1267
suitable for use as predicate to inspect.getmembers().
1268
"""
1269
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1270
False)
1271
1272
def _get_all_dbus_things(self, thing):
1273
"""Returns a generator of (name, attribute) pairs
1274
"""
1275
return ((getattr(athing.__get__(self), "_dbus_name", name),
1276
athing.__get__(self))
1277
for cls in self.__class__.__mro__
1278
for name, athing in
1279
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1280
1281
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1282
out_signature="s",
1283
path_keyword='object_path',
1284
connection_keyword='connection')
1285
def Introspect(self, object_path, connection):
1286
"""Overloading of standard D-Bus method.
1287
1288
Inserts annotation tags on methods and signals.
1289
"""
1290
xmlstring = dbus.service.Object.Introspect(self, object_path,
1291
connection)
1292
try:
1293
document = xml.dom.minidom.parseString(xmlstring)
1294
1295
for if_tag in document.getElementsByTagName("interface"):
1296
# Add annotation tags
1297
for typ in ("method", "signal"):
1298
for tag in if_tag.getElementsByTagName(typ):
1299
annots = dict()
1300
for name, prop in (self.
1301
_get_all_dbus_things(typ)):
1302
if (name == tag.getAttribute("name")
1303
and prop._dbus_interface
1304
== if_tag.getAttribute("name")):
1305
annots.update(getattr(
1306
prop, "_dbus_annotations", {}))
1307
for name, value in annots.items():
1308
ann_tag = document.createElement(
1309
"annotation")
1310
ann_tag.setAttribute("name", name)
1311
ann_tag.setAttribute("value", value)
1312
tag.appendChild(ann_tag)
1313
# Add interface annotation tags
1314
for annotation, value in dict(
1315
itertools.chain.from_iterable(
1316
annotations().items()
1317
for name, annotations
1318
in self._get_all_dbus_things("interface")
1319
if name == if_tag.getAttribute("name")
1320
)).items():
1321
ann_tag = document.createElement("annotation")
1322
ann_tag.setAttribute("name", annotation)
1323
ann_tag.setAttribute("value", value)
1324
if_tag.appendChild(ann_tag)
1325
# Fix argument name for the Introspect method itself
1326
if (if_tag.getAttribute("name")
1327
== dbus.INTROSPECTABLE_IFACE):
1328
for cn in if_tag.getElementsByTagName("method"):
1329
if cn.getAttribute("name") == "Introspect":
1330
for arg in cn.getElementsByTagName("arg"):
1331
if (arg.getAttribute("direction")
1332
== "out"):
1333
arg.setAttribute("name",
1334
"xml_data")
1335
xmlstring = document.toxml("utf-8")
1336
document.unlink()
1337
except (AttributeError, xml.dom.DOMException,
1338
xml.parsers.expat.ExpatError) as error:
1339
logger.error("Failed to override Introspection method",
1340
exc_info=error)
1341
return xmlstring
1342
1343
1344
class DBusObjectWithProperties(DBusObjectWithAnnotations):
754
class DBusObjectWithProperties(dbus.service.Object):
1345
755
"""A D-Bus object with properties.
1346
756
1347
757
Classes inheriting from this can use the dbus_service_property
1348
758
decorator to expose methods as D-Bus properties. It exposes the
1349
759
standard Get(), Set(), and GetAll() methods on the D-Bus.
1350
760
"""
1351
761
762
@staticmethod
763
def _is_dbus_property(obj):
764
return getattr(obj, "_dbus_is_property", False)
765
766
def _get_all_dbus_properties(self):
767
"""Returns a generator of (name, attribute) pairs
768
"""
769
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
770
for cls in self.__class__.__mro__
771
for name, prop in
772
inspect.getmembers(cls, self._is_dbus_property))
773
1352
774
def _get_dbus_property(self, interface_name, property_name):
1353
775
"""Returns a bound method if one exists which is a D-Bus
1354
776
property with the specified name and interface.
1355
777
"""
1356
for cls in self.__class__.__mro__:
1357
for name, value in inspect.getmembers(
1358
cls, self._is_dbus_thing("property")):
778
for cls in self.__class__.__mro__:
779
for name, value in (inspect.getmembers
780
(cls, self._is_dbus_property)):
1359
781
if (value._dbus_name == property_name
1360
782
and value._dbus_interface == interface_name):
1361
783
return value.__get__(self)
1362
784
1363
785
# No such property
1364
raise DBusPropertyNotFound("{}:{}.{}".format(
1365
self.dbus_object_path, interface_name, property_name))
1366
1367
@classmethod
1368
def _get_all_interface_names(cls):
1369
"""Get a sequence of all interfaces supported by an object"""
1370
return (name for name in set(getattr(getattr(x, attr),
1371
"_dbus_interface", None)
1372
for x in (inspect.getmro(cls))
1373
for attr in dir(x))
1374
if name is not None)
1375
1376
@dbus.service.method(dbus.PROPERTIES_IFACE,
1377
in_signature="ss",
786
raise DBusPropertyNotFound(self.dbus_object_path + ":"
787
+ interface_name + "."
788
+ property_name)
789
790
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1378
791
out_signature="v")
1379
792
def Get(self, interface_name, property_name):
1380
793
"""Standard D-Bus property Get() method, see D-Bus standard.
1386
799
if not hasattr(value, "variant_level"):
1387
800
return value
1388
801
return type(value)(value, variant_level=value.variant_level+1)
1389
802
1390
803
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1391
804
def Set(self, interface_name, property_name, value):
1392
805
"""Standard D-Bus property Set() method, see D-Bus standard.
1398
811
# The byte_arrays option is not supported yet on
1399
812
# signatures other than "ay".
1400
813
if prop._dbus_signature != "ay":
1401
raise ValueError("Byte arrays not supported for non-"
1402
"'ay' signature {!r}"
1403
.format(prop._dbus_signature))
1404
value = dbus.ByteArray(b''.join(chr(byte)
1405
for byte in value))
814
raise ValueError
815
value = dbus.ByteArray(''.join(unichr(byte)
816
for byte in value))
1406
817
prop(value)
1407
1408
@dbus.service.method(dbus.PROPERTIES_IFACE,
1409
in_signature="s",
818
819
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1410
820
out_signature="a{sv}")
1411
821
def GetAll(self, interface_name):
1412
822
"""Standard D-Bus property GetAll() method, see D-Bus
1413
823
standard.
1414
824
1415
825
Note: Will not include properties with access="write".
1416
826
"""
1417
827
properties = {}
1418
for name, prop in self._get_all_dbus_things("property"):
828
for name, prop in self._get_all_dbus_properties():
1419
829
if (interface_name
1420
830
and interface_name != prop._dbus_interface):
1421
831
# Interface non-empty but did not match
1427
837
if not hasattr(value, "variant_level"):
1428
838
properties[name] = value
1429
839
continue
1430
properties[name] = type(value)(
1431
value, variant_level=value.variant_level + 1)
840
properties[name] = type(value)(value, variant_level=
841
value.variant_level+1)
1432
842
return dbus.Dictionary(properties, signature="sv")
1433
1434
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1435
def PropertiesChanged(self, interface_name, changed_properties,
1436
invalidated_properties):
1437
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1438
standard.
1439
"""
1440
pass
1441
843
1442
844
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1443
845
out_signature="s",
1444
846
path_keyword='object_path',
1445
847
connection_keyword='connection')
1446
848
def Introspect(self, object_path, connection):
1447
"""Overloading of standard D-Bus method.
1448
1449
Inserts property tags and interface annotation tags.
849
"""Standard D-Bus method, overloaded to insert property tags.
1450
850
"""
1451
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1452
object_path,
1453
connection)
851
xmlstring = dbus.service.Object.Introspect(self, object_path,
852
connection)
1454
853
try:
1455
854
document = xml.dom.minidom.parseString(xmlstring)
1456
1457
855
def make_tag(document, name, prop):
1458
856
e = document.createElement("property")
1459
857
e.setAttribute("name", name)
1460
858
e.setAttribute("type", prop._dbus_signature)
1461
859
e.setAttribute("access", prop._dbus_access)
1462
860
return e
1463
1464
861
for if_tag in document.getElementsByTagName("interface"):
1465
# Add property tags
1466
862
for tag in (make_tag(document, name, prop)
1467
863
for name, prop
1468
in self._get_all_dbus_things("property")
864
in self._get_all_dbus_properties()
1469
865
if prop._dbus_interface
1470
866
== if_tag.getAttribute("name")):
1471
867
if_tag.appendChild(tag)
1472
# Add annotation tags for properties
1473
for tag in if_tag.getElementsByTagName("property"):
1474
annots = dict()
1475
for name, prop in self._get_all_dbus_things(
1476
"property"):
1477
if (name == tag.getAttribute("name")
1478
and prop._dbus_interface
1479
== if_tag.getAttribute("name")):
1480
annots.update(getattr(
1481
prop, "_dbus_annotations", {}))
1482
for name, value in annots.items():
1483
ann_tag = document.createElement(
1484
"annotation")
1485
ann_tag.setAttribute("name", name)
1486
ann_tag.setAttribute("value", value)
1487
tag.appendChild(ann_tag)
1488
868
# Add the names to the return values for the
1489
869
# "org.freedesktop.DBus.Properties" methods
1490
870
if (if_tag.getAttribute("name")
1505
885
except (AttributeError, xml.dom.DOMException,
1506
886
xml.parsers.expat.ExpatError) as error:
1507
887
logger.error("Failed to override Introspection method",
1508
exc_info=error)
1509
return xmlstring
1510
1511
1512
try:
1513
dbus.OBJECT_MANAGER_IFACE
1514
except AttributeError:
1515
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1516
1517
1518
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1519
"""A D-Bus object with an ObjectManager.
1520
1521
Classes inheriting from this exposes the standard
1522
GetManagedObjects call and the InterfacesAdded and
1523
InterfacesRemoved signals on the standard
1524
"org.freedesktop.DBus.ObjectManager" interface.
1525
1526
Note: No signals are sent automatically; they must be sent
1527
manually.
1528
"""
1529
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1530
out_signature="a{oa{sa{sv}}}")
1531
def GetManagedObjects(self):
1532
"""This function must be overridden"""
1533
raise NotImplementedError()
1534
1535
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1536
signature="oa{sa{sv}}")
1537
def InterfacesAdded(self, object_path, interfaces_and_properties):
1538
pass
1539
1540
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1541
def InterfacesRemoved(self, object_path, interfaces):
1542
pass
1543
1544
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1545
out_signature="s",
1546
path_keyword='object_path',
1547
connection_keyword='connection')
1548
def Introspect(self, object_path, connection):
1549
"""Overloading of standard D-Bus method.
1550
1551
Override return argument name of GetManagedObjects to be
1552
"objpath_interfaces_and_properties"
1553
"""
1554
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1555
object_path,
1556
connection)
1557
try:
1558
document = xml.dom.minidom.parseString(xmlstring)
1559
1560
for if_tag in document.getElementsByTagName("interface"):
1561
# Fix argument name for the GetManagedObjects method
1562
if (if_tag.getAttribute("name")
1563
== dbus.OBJECT_MANAGER_IFACE):
1564
for cn in if_tag.getElementsByTagName("method"):
1565
if (cn.getAttribute("name")
1566
== "GetManagedObjects"):
1567
for arg in cn.getElementsByTagName("arg"):
1568
if (arg.getAttribute("direction")
1569
== "out"):
1570
arg.setAttribute(
1571
"name",
1572
"objpath_interfaces"
1573
"_and_properties")
1574
xmlstring = document.toxml("utf-8")
1575
document.unlink()
1576
except (AttributeError, xml.dom.DOMException,
1577
xml.parsers.expat.ExpatError) as error:
1578
logger.error("Failed to override Introspection method",
1579
exc_info=error)
1580
return xmlstring
1581
1582
1583
def datetime_to_dbus(dt, variant_level=0):
888
error)
889
return xmlstring
890
891
892
def datetime_to_dbus (dt, variant_level=0):
1584
893
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1585
894
if dt is None:
1586
return dbus.String("", variant_level=variant_level)
1587
return dbus.String(dt.isoformat(), variant_level=variant_level)
1588
1589
1590
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1591
"""A class decorator; applied to a subclass of
1592
dbus.service.Object, it will add alternate D-Bus attributes with
1593
interface names according to the "alt_interface_names" mapping.
1594
Usage:
1595
1596
@alternate_dbus_interfaces({"org.example.Interface":
1597
"net.example.AlternateInterface"})
1598
class SampleDBusObject(dbus.service.Object):
1599
@dbus.service.method("org.example.Interface")
1600
def SampleDBusMethod():
1601
pass
1602
1603
The above "SampleDBusMethod" on "SampleDBusObject" will be
1604
reachable via two interfaces: "org.example.Interface" and
1605
"net.example.AlternateInterface", the latter of which will have
1606
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1607
"true", unless "deprecate" is passed with a False value.
1608
1609
This works for methods and signals, and also for D-Bus properties
1610
(from DBusObjectWithProperties) and interfaces (from the
1611
dbus_interface_annotations decorator).
895
return dbus.String("", variant_level = variant_level)
896
return dbus.String(dt.isoformat(),
897
variant_level=variant_level)
898
899
900
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
901
.__metaclass__):
902
"""Applied to an empty subclass of a D-Bus object, this metaclass
903
will add additional D-Bus attributes matching a certain pattern.
1612
904
"""
1613
1614
def wrapper(cls):
1615
for orig_interface_name, alt_interface_name in (
1616
alt_interface_names.items()):
1617
attr = {}
1618
interface_names = set()
1619
# Go though all attributes of the class
1620
for attrname, attribute in inspect.getmembers(cls):
905
def __new__(mcs, name, bases, attr):
906
# Go through all the base classes which could have D-Bus
907
# methods, signals, or properties in them
908
for base in (b for b in bases
909
if issubclass(b, dbus.service.Object)):
910
# Go though all attributes of the base class
911
for attrname, attribute in inspect.getmembers(base):
1621
912
# Ignore non-D-Bus attributes, and D-Bus attributes
1622
913
# with the wrong interface name
1623
914
if (not hasattr(attribute, "_dbus_interface")
1624
or not attribute._dbus_interface.startswith(
1625
orig_interface_name)):
915
or not attribute._dbus_interface
916
.startswith("se.recompile.Mandos")):
1626
917
continue
1627
918
# Create an alternate D-Bus interface name based on
1628
919
# the current name
1629
alt_interface = attribute._dbus_interface.replace(
1630
orig_interface_name, alt_interface_name)
1631
interface_names.add(alt_interface)
920
alt_interface = (attribute._dbus_interface
921
.replace("se.recompile.Mandos",
922
"se.bsnet.fukt.Mandos"))
1632
923
# Is this a D-Bus signal?
1633
924
if getattr(attribute, "_dbus_is_signal", False):
1634
# Extract the original non-method undecorated
1635
# function by black magic
1636
if sys.version_info.major == 2:
1637
nonmethod_func = (dict(
925
# Extract the original non-method function by
926
# black magic
927
nonmethod_func = (dict(
1638
928
zip(attribute.func_code.co_freevars,
1639
attribute.__closure__))
1640
["func"].cell_contents)
1641
else:
1642
nonmethod_func = (dict(
1643
zip(attribute.__code__.co_freevars,
1644
attribute.__closure__))
1645
["func"].cell_contents)
929
attribute.__closure__))["func"]
930
.cell_contents)
1646
931
# Create a new, but exactly alike, function
1647
932
# object, and decorate it to be a new D-Bus signal
1648
933
# with the alternate D-Bus interface name
1649
new_function = copy_function(nonmethod_func)
1650
new_function = (dbus.service.signal(
1651
alt_interface,
1652
attribute._dbus_signature)(new_function))
1653
# Copy annotations, if any
1654
try:
1655
new_function._dbus_annotations = dict(
1656
attribute._dbus_annotations)
1657
except AttributeError:
1658
pass
1659
934
new_function = (dbus.service.signal
935
(alt_interface,
936
attribute._dbus_signature)
937
(types.FunctionType(
938
nonmethod_func.func_code,
939
nonmethod_func.func_globals,
940
nonmethod_func.func_name,
941
nonmethod_func.func_defaults,
942
nonmethod_func.func_closure)))
1660
943
# Define a creator of a function to call both the
1661
# original and alternate functions, so both the
1662
# original and alternate signals gets sent when
1663
# the function is called
944
# old and new functions, so both the old and new
945
# signals gets sent when the function is called
1664
946
def fixscope(func1, func2):
1665
947
"""This function is a scope container to pass
1666
948
func1 and func2 to the "call_both" function
1667
949
outside of its arguments"""
1668
1669
@functools.wraps(func2)
1670
950
def call_both(*args, **kwargs):
1671
951
"""This function will emit two D-Bus
1672
952
signals by calling func1 and func2"""
1673
953
func1(*args, **kwargs)
1674
954
func2(*args, **kwargs)
1675
# Make wrapper function look like a D-Bus
1676
# signal
1677
for name, attr in inspect.getmembers(func2):
1678
if name.startswith("_dbus_"):
1679
setattr(call_both, name, attr)
1680
1681
955
return call_both
1682
956
# Create the "call_both" function and add it to
1683
957
# the class
1684
attr[attrname] = fixscope(attribute, new_function)
958
attr[attrname] = fixscope(attribute,
959
new_function)
1685
960
# Is this a D-Bus method?
1686
961
elif getattr(attribute, "_dbus_is_method", False):
1687
962
# Create a new, but exactly alike, function
1688
963
# object. Decorate it to be a new D-Bus method
1689
964
# with the alternate D-Bus interface name. Add it
1690
965
# to the class.
1691
attr[attrname] = (
1692
dbus.service.method(
1693
alt_interface,
1694
attribute._dbus_in_signature,
1695
attribute._dbus_out_signature)
1696
(copy_function(attribute)))
1697
# Copy annotations, if any
1698
try:
1699
attr[attrname]._dbus_annotations = dict(
1700
attribute._dbus_annotations)
1701
except AttributeError:
1702
pass
966
attr[attrname] = (dbus.service.method
967
(alt_interface,
968
attribute._dbus_in_signature,
969
attribute._dbus_out_signature)
970
(types.FunctionType
971
(attribute.func_code,
972
attribute.func_globals,
973
attribute.func_name,
974
attribute.func_defaults,
975
attribute.func_closure)))
1703
976
# Is this a D-Bus property?
1704
977
elif getattr(attribute, "_dbus_is_property", False):
1705
978
# Create a new, but exactly alike, function
1706
979
# object, and decorate it to be a new D-Bus
1707
980
# property with the alternate D-Bus interface
1708
981
# name. Add it to the class.
1709
attr[attrname] = (dbus_service_property(
1710
alt_interface, attribute._dbus_signature,
1711
attribute._dbus_access,
1712
attribute._dbus_get_args_options
1713
["byte_arrays"])
1714
(copy_function(attribute)))
1715
# Copy annotations, if any
1716
try:
1717
attr[attrname]._dbus_annotations = dict(
1718
attribute._dbus_annotations)
1719
except AttributeError:
1720
pass
1721
# Is this a D-Bus interface?
1722
elif getattr(attribute, "_dbus_is_interface", False):
1723
# Create a new, but exactly alike, function
1724
# object. Decorate it to be a new D-Bus interface
1725
# with the alternate D-Bus interface name. Add it
1726
# to the class.
1727
attr[attrname] = (
1728
dbus_interface_annotations(alt_interface)
1729
(copy_function(attribute)))
1730
if deprecate:
1731
# Deprecate all alternate interfaces
1732
iname = "_AlternateDBusNames_interface_annotation{}"
1733
for interface_name in interface_names:
1734
1735
@dbus_interface_annotations(interface_name)
1736
def func(self):
1737
return {"org.freedesktop.DBus.Deprecated":
1738
"true"}
1739
# Find an unused name
1740
for aname in (iname.format(i)
1741
for i in itertools.count()):
1742
if aname not in attr:
1743
attr[aname] = func
1744
break
1745
if interface_names:
1746
# Replace the class with a new subclass of it with
1747
# methods, signals, etc. as created above.
1748
if sys.version_info.major == 2:
1749
cls = type(b"{}Alternate".format(cls.__name__),
1750
(cls, ), attr)
1751
else:
1752
cls = type("{}Alternate".format(cls.__name__),
1753
(cls, ), attr)
1754
return cls
1755
1756
return wrapper
1757
1758
1759
@alternate_dbus_interfaces({"se.recompile.Mandos":
1760
"se.bsnet.fukt.Mandos"})
982
attr[attrname] = (dbus_service_property
983
(alt_interface,
984
attribute._dbus_signature,
985
attribute._dbus_access,
986
attribute
987
._dbus_get_args_options
988
["byte_arrays"])
989
(types.FunctionType
990
(attribute.func_code,
991
attribute.func_globals,
992
attribute.func_name,
993
attribute.func_defaults,
994
attribute.func_closure)))
995
return type.__new__(mcs, name, bases, attr)
996
997
1761
998
class ClientDBus(Client, DBusObjectWithProperties):
1762
999
"""A Client class using D-Bus
1763
1000
1764
1001
Attributes:
1765
1002
dbus_object_path: dbus.ObjectPath
1766
1003
bus: dbus.SystemBus()
1767
1004
"""
1768
1005
1769
1006
runtime_expansions = (Client.runtime_expansions
1770
+ ("dbus_object_path", ))
1771
1772
_interface = "se.recompile.Mandos.Client"
1773
1007
+ ("dbus_object_path",))
1008
1774
1009
# dbus.service.Object doesn't use super(), so we can't either.
1775
1776
def __init__(self, bus=None, *args, **kwargs):
1010
1011
def __init__(self, bus = None, *args, **kwargs):
1777
1012
self.bus = bus
1778
1013
Client.__init__(self, *args, **kwargs)
1014
1015
self._approvals_pending = 0
1779
1016
# Only now, when this client is initialized, can it show up on
1780
1017
# the D-Bus
1781
client_object_name = str(self.name).translate(
1018
client_object_name = unicode(self.name).translate(
1782
1019
{ord("."): ord("_"),
1783
1020
ord("-"): ord("_")})
1784
self.dbus_object_path = dbus.ObjectPath(
1785
"/clients/" + client_object_name)
1021
self.dbus_object_path = (dbus.ObjectPath
1022
("/clients/" + client_object_name))
1786
1023
DBusObjectWithProperties.__init__(self, self.bus,
1787
1024
self.dbus_object_path)
1788
1789
def notifychangeproperty(transform_func, dbus_name,
1790
type_func=lambda x: x,
1791
variant_level=1,
1792
invalidate_only=False,
1793
_interface=_interface):
1025
1026
def notifychangeproperty(transform_func,
1027
dbus_name, type_func=lambda x: x,
1028
variant_level=1):
1794
1029
""" Modify a variable so that it's a property which announces
1795
1030
its changes to DBus.
1796
1031
1797
1032
transform_fun: Function that takes a value and a variant_level
1798
1033
and transforms it to a D-Bus type.
1799
1034
dbus_name: D-Bus name of the variable
1801
1036
to the D-Bus. Default: no transform
1802
1037
variant_level: D-Bus variant level. Default: 1
1803
1038
"""
1804
attrname = "_{}".format(dbus_name)
1805
1039
attrname = "_{0}".format(dbus_name)
1806
1040
def setter(self, value):
1807
1041
if hasattr(self, "dbus_object_path"):
1808
1042
if (not hasattr(self, attrname) or
1809
1043
type_func(getattr(self, attrname, None))
1810
1044
!= type_func(value)):
1811
if invalidate_only:
1812
self.PropertiesChanged(
1813
_interface, dbus.Dictionary(),
1814
dbus.Array((dbus_name, )))
1815
else:
1816
dbus_value = transform_func(
1817
type_func(value),
1818
variant_level=variant_level)
1819
self.PropertyChanged(dbus.String(dbus_name),
1820
dbus_value)
1821
self.PropertiesChanged(
1822
_interface,
1823
dbus.Dictionary({dbus.String(dbus_name):
1824
dbus_value}),
1825
dbus.Array())
1045
dbus_value = transform_func(type_func(value),
1046
variant_level
1047
=variant_level)
1048
self.PropertyChanged(dbus.String(dbus_name),
1049
dbus_value)
1826
1050
setattr(self, attrname, value)
1827
1051
1828
1052
return property(lambda self: getattr(self, attrname), setter)
1829
1053
1054
1830
1055
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1831
1056
approvals_pending = notifychangeproperty(dbus.Boolean,
1832
1057
"ApprovalPending",
1833
type_func=bool)
1058
type_func = bool)
1834
1059
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1835
1060
last_enabled = notifychangeproperty(datetime_to_dbus,
1836
1061
"LastEnabled")
1837
checker = notifychangeproperty(
1838
dbus.Boolean, "CheckerRunning",
1839
type_func=lambda checker: checker is not None)
1062
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1063
type_func = lambda checker:
1064
checker is not None)
1840
1065
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1841
1066
"LastCheckedOK")
1842
last_checker_status = notifychangeproperty(dbus.Int16,
1843
"LastCheckerStatus")
1844
1067
last_approval_request = notifychangeproperty(
1845
1068
datetime_to_dbus, "LastApprovalRequest")
1846
1069
approved_by_default = notifychangeproperty(dbus.Boolean,
1847
1070
"ApprovedByDefault")
1848
approval_delay = notifychangeproperty(
1849
dbus.UInt64, "ApprovalDelay",
1850
type_func=lambda td: td.total_seconds() * 1000)
1071
approval_delay = notifychangeproperty(dbus.UInt16,
1072
"ApprovalDelay",
1073
type_func =
1074
_timedelta_to_milliseconds)
1851
1075
approval_duration = notifychangeproperty(
1852
dbus.UInt64, "ApprovalDuration",
1853
type_func=lambda td: td.total_seconds() * 1000)
1076
dbus.UInt16, "ApprovalDuration",
1077
type_func = _timedelta_to_milliseconds)
1854
1078
host = notifychangeproperty(dbus.String, "Host")
1855
timeout = notifychangeproperty(
1856
dbus.UInt64, "Timeout",
1857
type_func=lambda td: td.total_seconds() * 1000)
1079
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
1080
type_func =
1081
_timedelta_to_milliseconds)
1858
1082
extended_timeout = notifychangeproperty(
1859
dbus.UInt64, "ExtendedTimeout",
1860
type_func=lambda td: td.total_seconds() * 1000)
1861
interval = notifychangeproperty(
1862
dbus.UInt64, "Interval",
1863
type_func=lambda td: td.total_seconds() * 1000)
1083
dbus.UInt16, "ExtendedTimeout",
1084
type_func = _timedelta_to_milliseconds)
1085
interval = notifychangeproperty(dbus.UInt16,
1086
"Interval",
1087
type_func =
1088
_timedelta_to_milliseconds)
1864
1089
checker_command = notifychangeproperty(dbus.String, "Checker")
1865
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1866
invalidate_only=True)
1867
1090
1868
1091
del notifychangeproperty
1869
1092
1870
1093
def __del__(self, *args, **kwargs):
1871
1094
try:
1872
1095
self.remove_from_connection()
1875
1098
if hasattr(DBusObjectWithProperties, "__del__"):
1876
1099
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1877
1100
Client.__del__(self, *args, **kwargs)
1878
1879
def checker_callback(self, source, condition,
1880
connection, command, *args, **kwargs):
1881
ret = Client.checker_callback(self, source, condition,
1882
connection, command, *args,
1883
**kwargs)
1884
exitstatus = self.last_checker_status
1885
if exitstatus >= 0:
1101
1102
def checker_callback(self, pid, condition, command,
1103
*args, **kwargs):
1104
self.checker_callback_tag = None
1105
self.checker = None
1106
if os.WIFEXITED(condition):
1107
exitstatus = os.WEXITSTATUS(condition)
1886
1108
# Emit D-Bus signal
1887
1109
self.CheckerCompleted(dbus.Int16(exitstatus),
1888
# This is specific to GNU libC
1889
dbus.Int64(exitstatus << 8),
1110
dbus.Int64(condition),
1890
1111
dbus.String(command))
1891
1112
else:
1892
1113
# Emit D-Bus signal
1893
1114
self.CheckerCompleted(dbus.Int16(-1),
1894
dbus.Int64(
1895
# This is specific to GNU libC
1896
(exitstatus << 8)
1897
| self.last_checker_signal),
1115
dbus.Int64(condition),
1898
1116
dbus.String(command))
1899
return ret
1900
1117
1118
return Client.checker_callback(self, pid, condition, command,
1119
*args, **kwargs)
1120
1901
1121
def start_checker(self, *args, **kwargs):
1902
old_checker_pid = getattr(self.checker, "pid", None)
1122
old_checker = self.checker
1123
if self.checker is not None:
1124
old_checker_pid = self.checker.pid
1125
else:
1126
old_checker_pid = None
1903
1127
r = Client.start_checker(self, *args, **kwargs)
1904
1128
# Only if new checker process was started
1905
1129
if (self.checker is not None
1907
1131
# Emit D-Bus signal
1908
1132
self.CheckerStarted(self.current_checker_command)
1909
1133
return r
1910
1134
1911
1135
def _reset_approved(self):
1912
self.approved = None
1136
self._approved = None
1913
1137
return False
1914
1138
1915
1139
def approve(self, value=True):
1916
self.approved = value
1917
GLib.timeout_add(int(self.approval_duration.total_seconds()
1918
* 1000), self._reset_approved)
1919
1140
self.send_changedstate()
1920
1921
# D-Bus methods, signals & properties
1922
1923
# Interfaces
1924
1925
# Signals
1926
1141
self._approved = value
1142
gobject.timeout_add(_timedelta_to_milliseconds
1143
(self.approval_duration),
1144
self._reset_approved)
1145
1146
1147
## D-Bus methods, signals & properties
1148
_interface = "se.recompile.Mandos.Client"
1149
1150
## Signals
1151
1927
1152
# CheckerCompleted - signal
1928
1153
@dbus.service.signal(_interface, signature="nxs")
1929
1154
def CheckerCompleted(self, exitcode, waitstatus, command):
1930
1155
"D-Bus signal"
1931
1156
pass
1932
1157
1933
1158
# CheckerStarted - signal
1934
1159
@dbus.service.signal(_interface, signature="s")
1935
1160
def CheckerStarted(self, command):
1936
1161
"D-Bus signal"
1937
1162
pass
1938
1163
1939
1164
# PropertyChanged - signal
1940
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1941
1165
@dbus.service.signal(_interface, signature="sv")
1942
1166
def PropertyChanged(self, property, value):
1943
1167
"D-Bus signal"
1944
1168
pass
1945
1169
1946
1170
# GotSecret - signal
1947
1171
@dbus.service.signal(_interface)
1948
1172
def GotSecret(self):
1951
1175
server to mandos-client
1952
1176
"""
1953
1177
pass
1954
1178
1955
1179
# Rejected - signal
1956
1180
@dbus.service.signal(_interface, signature="s")
1957
1181
def Rejected(self, reason):
1958
1182
"D-Bus signal"
1959
1183
pass
1960
1184
1961
1185
# NeedApproval - signal
1962
1186
@dbus.service.signal(_interface, signature="tb")
1963
1187
def NeedApproval(self, timeout, default):
1964
1188
"D-Bus signal"
1965
1189
return self.need_approval()
1966
1967
# Methods
1968
1190
1191
# NeRwequest - signal
1192
@dbus.service.signal(_interface, signature="s")
1193
def NewRequest(self, ip):
1194
"""D-Bus signal
1195
Is sent after a client request a password.
1196
"""
1197
pass
1198
1199
## Methods
1200
1969
1201
# Approve - method
1970
1202
@dbus.service.method(_interface, in_signature="b")
1971
1203
def Approve(self, value):
1972
1204
self.approve(value)
1973
1205
1974
1206
# CheckedOK - method
1975
1207
@dbus.service.method(_interface)
1976
1208
def CheckedOK(self):
1977
1209
self.checked_ok()
1978
1210
1979
1211
# Enable - method
1980
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1981
1212
@dbus.service.method(_interface)
1982
1213
def Enable(self):
1983
1214
"D-Bus method"
1984
1215
self.enable()
1985
1216
1986
1217
# StartChecker - method
1987
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1988
1218
@dbus.service.method(_interface)
1989
1219
def StartChecker(self):
1990
1220
"D-Bus method"
1991
1221
self.start_checker()
1992
1222
1993
1223
# Disable - method
1994
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1995
1224
@dbus.service.method(_interface)
1996
1225
def Disable(self):
1997
1226
"D-Bus method"
1998
1227
self.disable()
1999
1228
2000
1229
# StopChecker - method
2001
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2002
1230
@dbus.service.method(_interface)
2003
1231
def StopChecker(self):
2004
1232
self.stop_checker()
2005
2006
# Properties
2007
1233
1234
## Properties
1235
2008
1236
# ApprovalPending - property
2009
1237
@dbus_service_property(_interface, signature="b", access="read")
2010
1238
def ApprovalPending_dbus_property(self):
2011
1239
return dbus.Boolean(bool(self.approvals_pending))
2012
1240
2013
1241
# ApprovedByDefault - property
2014
@dbus_service_property(_interface,
2015
signature="b",
1242
@dbus_service_property(_interface, signature="b",
2016
1243
access="readwrite")
2017
1244
def ApprovedByDefault_dbus_property(self, value=None):
2018
1245
if value is None: # get
2019
1246
return dbus.Boolean(self.approved_by_default)
2020
1247
self.approved_by_default = bool(value)
2021
1248
2022
1249
# ApprovalDelay - property
2023
@dbus_service_property(_interface,
2024
signature="t",
1250
@dbus_service_property(_interface, signature="t",
2025
1251
access="readwrite")
2026
1252
def ApprovalDelay_dbus_property(self, value=None):
2027
1253
if value is None: # get
2028
return dbus.UInt64(self.approval_delay.total_seconds()
2029
* 1000)
1254
return dbus.UInt64(self.approval_delay_milliseconds())
2030
1255
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2031
1256
2032
1257
# ApprovalDuration - property
2033
@dbus_service_property(_interface,
2034
signature="t",
1258
@dbus_service_property(_interface, signature="t",
2035
1259
access="readwrite")
2036
1260
def ApprovalDuration_dbus_property(self, value=None):
2037
1261
if value is None: # get
2038
return dbus.UInt64(self.approval_duration.total_seconds()
2039
* 1000)
1262
return dbus.UInt64(_timedelta_to_milliseconds(
1263
self.approval_duration))
2040
1264
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2041
1265
2042
1266
# Name - property
2043
@dbus_annotations(
2044
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2045
1267
@dbus_service_property(_interface, signature="s", access="read")
2046
1268
def Name_dbus_property(self):
2047
1269
return dbus.String(self.name)
2048
2049
# KeyID - property
2050
@dbus_annotations(
2051
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2052
@dbus_service_property(_interface, signature="s", access="read")
2053
def KeyID_dbus_property(self):
2054
return dbus.String(self.key_id)
2055
1270
2056
1271
# Fingerprint - property
2057
@dbus_annotations(
2058
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2059
1272
@dbus_service_property(_interface, signature="s", access="read")
2060
1273
def Fingerprint_dbus_property(self):
2061
1274
return dbus.String(self.fingerprint)
2062
1275
2063
1276
# Host - property
2064
@dbus_service_property(_interface,
2065
signature="s",
1277
@dbus_service_property(_interface, signature="s",
2066
1278
access="readwrite")
2067
1279
def Host_dbus_property(self, value=None):
2068
1280
if value is None: # get
2069
1281
return dbus.String(self.host)
2070
self.host = str(value)
2071
1282
self.host = value
1283
2072
1284
# Created - property
2073
@dbus_annotations(
2074
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2075
1285
@dbus_service_property(_interface, signature="s", access="read")
2076
1286
def Created_dbus_property(self):
2077
1287
return datetime_to_dbus(self.created)
2078
1288
2079
1289
# LastEnabled - property
2080
1290
@dbus_service_property(_interface, signature="s", access="read")
2081
1291
def LastEnabled_dbus_property(self):
2082
1292
return datetime_to_dbus(self.last_enabled)
2083
1293
2084
1294
# Enabled - property
2085
@dbus_service_property(_interface,
2086
signature="b",
1295
@dbus_service_property(_interface, signature="b",
2087
1296
access="readwrite")
2088
1297
def Enabled_dbus_property(self, value=None):
2089
1298
if value is None: # get
2092
1301
self.enable()
2093
1302
else:
2094
1303
self.disable()
2095
1304
2096
1305
# LastCheckedOK - property
2097
@dbus_service_property(_interface,
2098
signature="s",
1306
@dbus_service_property(_interface, signature="s",
2099
1307
access="readwrite")
2100
1308
def LastCheckedOK_dbus_property(self, value=None):
2101
1309
if value is not None:
2102
1310
self.checked_ok()
2103
1311
return
2104
1312
return datetime_to_dbus(self.last_checked_ok)
2105
2106
# LastCheckerStatus - property
2107
@dbus_service_property(_interface, signature="n", access="read")
2108
def LastCheckerStatus_dbus_property(self):
2109
return dbus.Int16(self.last_checker_status)
2110
1313
2111
1314
# Expires - property
2112
1315
@dbus_service_property(_interface, signature="s", access="read")
2113
1316
def Expires_dbus_property(self):
2114
1317
return datetime_to_dbus(self.expires)
2115
1318
2116
1319
# LastApprovalRequest - property
2117
1320
@dbus_service_property(_interface, signature="s", access="read")
2118
1321
def LastApprovalRequest_dbus_property(self):
2119
1322
return datetime_to_dbus(self.last_approval_request)
2120
1323
2121
1324
# Timeout - property
2122
@dbus_service_property(_interface,
2123
signature="t",
1325
@dbus_service_property(_interface, signature="t",
2124
1326
access="readwrite")
2125
1327
def Timeout_dbus_property(self, value=None):
2126
1328
if value is None: # get
2127
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2128
old_timeout = self.timeout
1329
return dbus.UInt64(self.timeout_milliseconds())
2129
1330
self.timeout = datetime.timedelta(0, 0, 0, value)
2130
# Reschedule disabling
2131
if self.enabled:
2132
now = datetime.datetime.utcnow()
2133
self.expires += self.timeout - old_timeout
2134
if self.expires <= now:
2135
# The timeout has passed
2136
self.disable()
2137
else:
2138
if (getattr(self, "disable_initiator_tag", None)
2139
is None):
2140
return
2141
GLib.source_remove(self.disable_initiator_tag)
2142
self.disable_initiator_tag = GLib.timeout_add(
2143
int((self.expires - now).total_seconds() * 1000),
2144
self.disable)
2145
1331
if getattr(self, "disable_initiator_tag", None) is None:
1332
return
1333
# Reschedule timeout
1334
gobject.source_remove(self.disable_initiator_tag)
1335
self.disable_initiator_tag = None
1336
self.expires = None
1337
time_to_die = _timedelta_to_milliseconds((self
1338
.last_checked_ok
1339
+ self.timeout)
1340
- datetime.datetime
1341
.utcnow())
1342
if time_to_die <= 0:
1343
# The timeout has passed
1344
self.disable()
1345
else:
1346
self.expires = (datetime.datetime.utcnow()
1347
+ datetime.timedelta(milliseconds =
1348
time_to_die))
1349
self.disable_initiator_tag = (gobject.timeout_add
1350
(time_to_die, self.disable))
1351
2146
1352
# ExtendedTimeout - property
2147
@dbus_service_property(_interface,
2148
signature="t",
1353
@dbus_service_property(_interface, signature="t",
2149
1354
access="readwrite")
2150
1355
def ExtendedTimeout_dbus_property(self, value=None):
2151
1356
if value is None: # get
2152
return dbus.UInt64(self.extended_timeout.total_seconds()
2153
* 1000)
1357
return dbus.UInt64(self.extended_timeout_milliseconds())
2154
1358
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2155
1359
2156
1360
# Interval - property
2157
@dbus_service_property(_interface,
2158
signature="t",
1361
@dbus_service_property(_interface, signature="t",
2159
1362
access="readwrite")
2160
1363
def Interval_dbus_property(self, value=None):
2161
1364
if value is None: # get
2162
return dbus.UInt64(self.interval.total_seconds() * 1000)
1365
return dbus.UInt64(self.interval_milliseconds())
2163
1366
self.interval = datetime.timedelta(0, 0, 0, value)
2164
1367
if getattr(self, "checker_initiator_tag", None) is None:
2165
1368
return
2166
1369
if self.enabled:
2167
1370
# Reschedule checker run
2168
GLib.source_remove(self.checker_initiator_tag)
2169
self.checker_initiator_tag = GLib.timeout_add(
2170
value, self.start_checker)
2171
self.start_checker() # Start one now, too
2172
1371
gobject.source_remove(self.checker_initiator_tag)
1372
self.checker_initiator_tag = (gobject.timeout_add
1373
(value, self.start_checker))
1374
self.start_checker() # Start one now, too
1375
2173
1376
# Checker - property
2174
@dbus_service_property(_interface,
2175
signature="s",
1377
@dbus_service_property(_interface, signature="s",
2176
1378
access="readwrite")
2177
1379
def Checker_dbus_property(self, value=None):
2178
1380
if value is None: # get
2179
1381
return dbus.String(self.checker_command)
2180
self.checker_command = str(value)
2181
1382
self.checker_command = value
1383
2182
1384
# CheckerRunning - property
2183
@dbus_service_property(_interface,
2184
signature="b",
1385
@dbus_service_property(_interface, signature="b",
2185
1386
access="readwrite")
2186
1387
def CheckerRunning_dbus_property(self, value=None):
2187
1388
if value is None: # get
2190
1391
self.start_checker()
2191
1392
else:
2192
1393
self.stop_checker()
2193
1394
2194
1395
# ObjectPath - property
2195
@dbus_annotations(
2196
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2197
"org.freedesktop.DBus.Deprecated": "true"})
2198
1396
@dbus_service_property(_interface, signature="o", access="read")
2199
1397
def ObjectPath_dbus_property(self):
2200
return self.dbus_object_path # is already a dbus.ObjectPath
2201
1398
return self.dbus_object_path # is already a dbus.ObjectPath
1399
2202
1400
# Secret = property
2203
@dbus_annotations(
2204
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2205
"invalidates"})
2206
@dbus_service_property(_interface,
2207
signature="ay",
2208
access="write",
2209
byte_arrays=True)
1401
@dbus_service_property(_interface, signature="ay",
1402
access="write", byte_arrays=True)
2210
1403
def Secret_dbus_property(self, value):
2211
self.secret = bytes(value)
2212
1404
self.secret = str(value)
1405
2213
1406
del _interface
2214
1407
2215
1408
2216
1409
class ProxyClient(object):
2217
def __init__(self, child_pipe, key_id, fpr, address):
1410
def __init__(self, child_pipe, fpr, address):
2218
1411
self._pipe = child_pipe
2219
self._pipe.send(('init', key_id, fpr, address))
1412
self._pipe.send(('init', fpr, address))
2220
1413
if not self._pipe.recv():
2221
raise KeyError(key_id or fpr)
2222
1414
raise KeyError()
1415
2223
1416
def __getattribute__(self, name):
2224
if name == '_pipe':
1417
if(name == '_pipe'):
2225
1418
return super(ProxyClient, self).__getattribute__(name)
2226
1419
self._pipe.send(('getattr', name))
2227
1420
data = self._pipe.recv()
2228
1421
if data[0] == 'data':
2229
1422
return data[1]
2230
1423
if data[0] == 'function':
2231
2232
1424
def func(*args, **kwargs):
2233
1425
self._pipe.send(('funcall', name, args, kwargs))
2234
1426
return self._pipe.recv()[1]
2235
2236
1427
return func
2237
1428
2238
1429
def __setattr__(self, name, value):
2239
if name == '_pipe':
1430
if(name == '_pipe'):
2240
1431
return super(ProxyClient, self).__setattr__(name, value)
2241
1432
self._pipe.send(('setattr', name, value))
2242
1433
2243
1434
1435
class ClientDBusTransitional(ClientDBus):
1436
__metaclass__ = AlternateDBusNamesMetaclass
1437
1438
2244
1439
class ClientHandler(socketserver.BaseRequestHandler, object):
2245
1440
"""A class to handle client connections.
2246
1441
2247
1442
Instantiated once for each connection to handle it.
2248
1443
Note: This will run in its own forked process."""
2249
1444
2250
1445
def handle(self):
2251
1446
with contextlib.closing(self.server.child_pipe) as child_pipe:
2252
1447
logger.info("TCP connection from: %s",
2253
str(self.client_address))
1448
unicode(self.client_address))
2254
1449
logger.debug("Pipe FD: %d",
2255
1450
self.server.child_pipe.fileno())
2256
2257
session = gnutls.ClientSession(self.request)
2258
2259
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2260
# "+AES-256-CBC", "+SHA1",
2261
# "+COMP-NULL", "+CTYPE-OPENPGP",
2262
# "+DHE-DSS"))
1451
1452
session = (gnutls.connection
1453
.ClientSession(self.request,
1454
gnutls.connection
1455
.X509Credentials()))
1456
1457
# Note: gnutls.connection.X509Credentials is really a
1458
# generic GnuTLS certificate credentials object so long as
1459
# no X.509 keys are added to it. Therefore, we can use it
1460
# here despite using OpenPGP certificates.
1461
1462
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1463
# "+AES-256-CBC", "+SHA1",
1464
# "+COMP-NULL", "+CTYPE-OPENPGP",
1465
# "+DHE-DSS"))
2263
1466
# Use a fallback default, since this MUST be set.
2264
1467
priority = self.server.gnutls_priority
2265
1468
if priority is None:
2266
1469
priority = "NORMAL"
2267
gnutls.priority_set_direct(session._c_object,
2268
priority.encode("utf-8"),
2269
None)
2270
1470
(gnutls.library.functions
1471
.gnutls_priority_set_direct(session._c_object,
1472
priority, None))
1473
2271
1474
# Start communication using the Mandos protocol
2272
1475
# Get protocol number
2273
1476
line = self.request.makefile().readline()
2274
1477
logger.debug("Protocol version: %r", line)
2275
1478
try:
2276
1479
if int(line.strip().split()[0]) > 1:
2277
raise RuntimeError(line)
1480
raise RuntimeError
2278
1481
except (ValueError, IndexError, RuntimeError) as error:
2279
1482
logger.error("Unknown protocol version: %s", error)
2280
1483
return
2281
1484
2282
1485
# Start GnuTLS connection
2283
1486
try:
2284
1487
session.handshake()
2285
except gnutls.Error as error:
1488
except gnutls.errors.GNUTLSError as error:
2286
1489
logger.warning("Handshake failed: %s", error)
2287
1490
# Do not run session.bye() here: the session is not
2288
1491
# established. Just abandon the request.
2289
1492
return
2290
1493
logger.debug("Handshake succeeded")
2291
1494
2292
1495
approval_required = False
2293
1496
try:
2294
if gnutls.has_rawpk:
2295
fpr = b""
2296
try:
2297
key_id = self.key_id(
2298
self.peer_certificate(session))
2299
except (TypeError, gnutls.Error) as error:
2300
logger.warning("Bad certificate: %s", error)
2301
return
2302
logger.debug("Key ID: %s", key_id)
2303
2304
else:
2305
key_id = b""
2306
try:
2307
fpr = self.fingerprint(
2308
self.peer_certificate(session))
2309
except (TypeError, gnutls.Error) as error:
2310
logger.warning("Bad certificate: %s", error)
2311
return
2312
logger.debug("Fingerprint: %s", fpr)
2313
2314
try:
2315
client = ProxyClient(child_pipe, key_id, fpr,
1497
try:
1498
fpr = self.fingerprint(self.peer_certificate
1499
(session))
1500
except (TypeError,
1501
gnutls.errors.GNUTLSError) as error:
1502
logger.warning("Bad certificate: %s", error)
1503
return
1504
logger.debug("Fingerprint: %s", fpr)
1505
if self.server.use_dbus:
1506
# Emit D-Bus signal
1507
client.NewRequest(str(self.client_address))
1508
1509
try:
1510
client = ProxyClient(child_pipe, fpr,
2316
1511
self.client_address)
2317
1512
except KeyError:
2318
1513
return
2319
1514
2320
1515
if client.approval_delay:
2321
1516
delay = client.approval_delay
2322
1517
client.approvals_pending += 1
2323
1518
approval_required = True
2324
1519
2325
1520
while True:
2326
1521
if not client.enabled:
2327
1522
logger.info("Client %s is disabled",
2328
client.name)
1523
client.name)
2329
1524
if self.server.use_dbus:
2330
1525
# Emit D-Bus signal
2331
1526
client.Rejected("Disabled")
2332
1527
return
2333
2334
if client.approved or not client.approval_delay:
2335
# We are approved or approval is disabled
1528
1529
if client._approved or not client.approval_delay:
1530
#We are approved or approval is disabled
2336
1531
break
2337
elif client.approved is None:
1532
elif client._approved is None:
2338
1533
logger.info("Client %s needs approval",
2339
1534
client.name)
2340
1535
if self.server.use_dbus:
2341
1536
# Emit D-Bus signal
2342
1537
client.NeedApproval(
2343
client.approval_delay.total_seconds()
2344
* 1000, client.approved_by_default)
1538
client.approval_delay_milliseconds(),
1539
client.approved_by_default)
2345
1540
else:
2346
1541
logger.warning("Client %s was not approved",
2347
1542
client.name)
2349
1544
# Emit D-Bus signal
2350
1545
client.Rejected("Denied")
2351
1546
return
2352
2353
# wait until timeout or approved
1547
1548
#wait until timeout or approved
2354
1549
time = datetime.datetime.now()
2355
1550
client.changedstate.acquire()
2356
client.changedstate.wait(delay.total_seconds())
1551
(client.changedstate.wait
1552
(float(client._timedelta_to_milliseconds(delay)
1553
/ 1000)))
2357
1554
client.changedstate.release()
2358
1555
time2 = datetime.datetime.now()
2359
1556
if (time2 - time) >= delay:
2369
1566
break
2370
1567
else:
2371
1568
delay -= time2 - time
2372
2373
try:
2374
session.send(client.secret)
2375
except gnutls.Error as error:
2376
logger.warning("gnutls send failed",
2377
exc_info=error)
2378
return
2379
1569
1570
sent_size = 0
1571
while sent_size < len(client.secret):
1572
try:
1573
sent = session.send(client.secret[sent_size:])
1574
except gnutls.errors.GNUTLSError as error:
1575
logger.warning("gnutls send failed")
1576
return
1577
logger.debug("Sent: %d, remaining: %d",
1578
sent, len(client.secret)
1579
- (sent_size + sent))
1580
sent_size += sent
1581
2380
1582
logger.info("Sending secret to %s", client.name)
2381
1583
# bump the timeout using extended_timeout
2382
client.bump_timeout(client.extended_timeout)
1584
client.checked_ok(client.extended_timeout)
2383
1585
if self.server.use_dbus:
2384
1586
# Emit D-Bus signal
2385
1587
client.GotSecret()
2386
1588
2387
1589
finally:
2388
1590
if approval_required:
2389
1591
client.approvals_pending -= 1
2390
1592
try:
2391
1593
session.bye()
2392
except gnutls.Error as error:
2393
logger.warning("GnuTLS bye failed",
2394
exc_info=error)
2395
1594
except gnutls.errors.GNUTLSError as error:
1595
logger.warning("GnuTLS bye failed")
1596
2396
1597
@staticmethod
2397
1598
def peer_certificate(session):
2398
"Return the peer's certificate as a bytestring"
2399
try:
2400
cert_type = gnutls.certificate_type_get2(session._c_object,
2401
gnutls.CTYPE_PEERS)
2402
except AttributeError:
2403
cert_type = gnutls.certificate_type_get(session._c_object)
2404
if gnutls.has_rawpk:
2405
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2406
else:
2407
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2408
# If not a valid certificate type...
2409
if cert_type not in valid_cert_types:
2410
logger.info("Cert type %r not in %r", cert_type,
2411
valid_cert_types)
2412
# ...return invalid data
2413
return b""
1599
"Return the peer's OpenPGP certificate as a bytestring"
1600
# If not an OpenPGP certificate...
1601
if (gnutls.library.functions
1602
.gnutls_certificate_type_get(session._c_object)
1603
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1604
# ...do the normal thing
1605
return session.peer_certificate
2414
1606
list_size = ctypes.c_uint(1)
2415
cert_list = (gnutls.certificate_get_peers
1607
cert_list = (gnutls.library.functions
1608
.gnutls_certificate_get_peers
2416
1609
(session._c_object, ctypes.byref(list_size)))
2417
1610
if not bool(cert_list) and list_size.value != 0:
2418
raise gnutls.Error("error getting peer certificate")
1611
raise gnutls.errors.GNUTLSError("error getting peer"
1612
" certificate")
2419
1613
if list_size.value == 0:
2420
1614
return None
2421
1615
cert = cert_list[0]
2422
1616
return ctypes.string_at(cert.data, cert.size)
2423
2424
@staticmethod
2425
def key_id(certificate):
2426
"Convert a certificate bytestring to a hexdigit key ID"
2427
# New GnuTLS "datum" with the public key
2428
datum = gnutls.datum_t(
2429
ctypes.cast(ctypes.c_char_p(certificate),
2430
ctypes.POINTER(ctypes.c_ubyte)),
2431
ctypes.c_uint(len(certificate)))
2432
# XXX all these need to be created in the gnutls "module"
2433
# New empty GnuTLS certificate
2434
pubkey = gnutls.pubkey_t()
2435
gnutls.pubkey_init(ctypes.byref(pubkey))
2436
# Import the raw public key into the certificate
2437
gnutls.pubkey_import(pubkey,
2438
ctypes.byref(datum),
2439
gnutls.X509_FMT_DER)
2440
# New buffer for the key ID
2441
buf = ctypes.create_string_buffer(32)
2442
buf_len = ctypes.c_size_t(len(buf))
2443
# Get the key ID from the raw public key into the buffer
2444
gnutls.pubkey_get_key_id(pubkey,
2445
gnutls.KEYID_USE_SHA256,
2446
ctypes.cast(ctypes.byref(buf),
2447
ctypes.POINTER(ctypes.c_ubyte)),
2448
ctypes.byref(buf_len))
2449
# Deinit the certificate
2450
gnutls.pubkey_deinit(pubkey)
2451
2452
# Convert the buffer to a Python bytestring
2453
key_id = ctypes.string_at(buf, buf_len.value)
2454
# Convert the bytestring to hexadecimal notation
2455
hex_key_id = binascii.hexlify(key_id).upper()
2456
return hex_key_id
2457
1617
2458
1618
@staticmethod
2459
1619
def fingerprint(openpgp):
2460
1620
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2461
1621
# New GnuTLS "datum" with the OpenPGP public key
2462
datum = gnutls.datum_t(
2463
ctypes.cast(ctypes.c_char_p(openpgp),
2464
ctypes.POINTER(ctypes.c_ubyte)),
2465
ctypes.c_uint(len(openpgp)))
1622
datum = (gnutls.library.types
1623
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1624
ctypes.POINTER
1625
(ctypes.c_ubyte)),
1626
ctypes.c_uint(len(openpgp))))
2466
1627
# New empty GnuTLS certificate
2467
crt = gnutls.openpgp_crt_t()
2468
gnutls.openpgp_crt_init(ctypes.byref(crt))
1628
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1629
(gnutls.library.functions
1630
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2469
1631
# Import the OpenPGP public key into the certificate
2470
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2471
gnutls.OPENPGP_FMT_RAW)
1632
(gnutls.library.functions
1633
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1634
gnutls.library.constants
1635
.GNUTLS_OPENPGP_FMT_RAW))
2472
1636
# Verify the self signature in the key
2473
1637
crtverify = ctypes.c_uint()
2474
gnutls.openpgp_crt_verify_self(crt, 0,
2475
ctypes.byref(crtverify))
1638
(gnutls.library.functions
1639
.gnutls_openpgp_crt_verify_self(crt, 0,
1640
ctypes.byref(crtverify)))
2476
1641
if crtverify.value != 0:
2477
gnutls.openpgp_crt_deinit(crt)
2478
raise gnutls.CertificateSecurityError(code
2479
=crtverify.value)
1642
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1643
raise (gnutls.errors.CertificateSecurityError
1644
("Verify failed"))
2480
1645
# New buffer for the fingerprint
2481
1646
buf = ctypes.create_string_buffer(20)
2482
1647
buf_len = ctypes.c_size_t()
2483
1648
# Get the fingerprint from the certificate into the buffer
2484
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2485
ctypes.byref(buf_len))
1649
(gnutls.library.functions
1650
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1651
ctypes.byref(buf_len)))
2486
1652
# Deinit the certificate
2487
gnutls.openpgp_crt_deinit(crt)
1653
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2488
1654
# Convert the buffer to a Python bytestring
2489
1655
fpr = ctypes.string_at(buf, buf_len.value)
2490
1656
# Convert the bytestring to hexadecimal notation
2494
1660
2495
1661
class MultiprocessingMixIn(object):
2496
1662
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2497
2498
1663
def sub_process_main(self, request, address):
2499
1664
try:
2500
1665
self.finish_request(request, address)
2501
except Exception:
1666
except:
2502
1667
self.handle_error(request, address)
2503
1668
self.close_request(request)
2504
1669
2505
1670
def process_request(self, request, address):
2506
1671
"""Start a new process to process the request."""
2507
proc = multiprocessing.Process(target=self.sub_process_main,
2508
args=(request, address))
1672
proc = multiprocessing.Process(target = self.sub_process_main,
1673
args = (request,
1674
address))
2509
1675
proc.start()
2510
1676
return proc
2511
1677
2512
1678
2513
1679
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2514
1680
""" adds a pipe to the MixIn """
2515
2516
1681
def process_request(self, request, client_address):
2517
1682
"""Overrides and wraps the original process_request().
2518
1683
2519
1684
This function creates a new pipe in self.pipe
2520
1685
"""
2521
1686
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2522
1687
2523
1688
proc = MultiprocessingMixIn.process_request(self, request,
2524
1689
client_address)
2525
1690
self.child_pipe.close()
2526
1691
self.add_pipe(parent_pipe, proc)
2527
1692
2528
1693
def add_pipe(self, parent_pipe, proc):
2529
1694
"""Dummy function; override as necessary"""
2530
raise NotImplementedError()
1695
raise NotImplementedError
2531
1696
2532
1697
2533
1698
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2534
1699
socketserver.TCPServer, object):
2535
1700
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2536
1701
2537
1702
Attributes:
2538
1703
enabled: Boolean; whether this server is activated yet
2539
1704
interface: None or a network interface name (string)
2540
1705
use_ipv6: Boolean; to use IPv6 or not
2541
1706
"""
2542
2543
1707
def __init__(self, server_address, RequestHandlerClass,
2544
interface=None,
2545
use_ipv6=True,
2546
socketfd=None):
2547
"""If socketfd is set, use that file descriptor instead of
2548
creating a new one with socket.socket().
2549
"""
1708
interface=None, use_ipv6=True):
2550
1709
self.interface = interface
2551
1710
if use_ipv6:
2552
1711
self.address_family = socket.AF_INET6
2553
if socketfd is not None:
2554
# Save the file descriptor
2555
self.socketfd = socketfd
2556
# Save the original socket.socket() function
2557
self.socket_socket = socket.socket
2558
2559
# To implement --socket, we monkey patch socket.socket.
2560
#
2561
# (When socketserver.TCPServer is a new-style class, we
2562
# could make self.socket into a property instead of monkey
2563
# patching socket.socket.)
2564
#
2565
# Create a one-time-only replacement for socket.socket()
2566
@functools.wraps(socket.socket)
2567
def socket_wrapper(*args, **kwargs):
2568
# Restore original function so subsequent calls are
2569
# not affected.
2570
socket.socket = self.socket_socket
2571
del self.socket_socket
2572
# This time only, return a new socket object from the
2573
# saved file descriptor.
2574
return socket.fromfd(self.socketfd, *args, **kwargs)
2575
# Replace socket.socket() function with wrapper
2576
socket.socket = socket_wrapper
2577
# The socketserver.TCPServer.__init__ will call
2578
# socket.socket(), which might be our replacement,
2579
# socket_wrapper(), if socketfd was set.
2580
1712
socketserver.TCPServer.__init__(self, server_address,
2581
1713
RequestHandlerClass)
2582
2583
1714
def server_bind(self):
2584
1715
"""This overrides the normal server_bind() function
2585
1716
to bind to an interface if one was specified, and also NOT to
2586
1717
bind to an address or port if they were not specified."""
2587
global SO_BINDTODEVICE
2588
1718
if self.interface is not None:
2589
1719
if SO_BINDTODEVICE is None:
2590
# Fall back to a hard-coded value which seems to be
2591
# common enough.
2592
logger.warning("SO_BINDTODEVICE not found, trying 25")
2593
SO_BINDTODEVICE = 25
2594
try:
2595
self.socket.setsockopt(
2596
socket.SOL_SOCKET, SO_BINDTODEVICE,
2597
(self.interface + "\0").encode("utf-8"))
2598
except socket.error as error:
2599
if error.errno == errno.EPERM:
2600
logger.error("No permission to bind to"
2601
" interface %s", self.interface)
2602
elif error.errno == errno.ENOPROTOOPT:
2603
logger.error("SO_BINDTODEVICE not available;"
2604
" cannot bind to interface %s",
2605
self.interface)
2606
elif error.errno == errno.ENODEV:
2607
logger.error("Interface %s does not exist,"
2608
" cannot bind", self.interface)
2609
else:
2610
raise
1720
logger.error("SO_BINDTODEVICE does not exist;"
1721
" cannot bind to interface %s",
1722
self.interface)
1723
else:
1724
try:
1725
self.socket.setsockopt(socket.SOL_SOCKET,
1726
SO_BINDTODEVICE,
1727
str(self.interface
1728
+ '\0'))
1729
except socket.error as error:
1730
if error[0] == errno.EPERM:
1731
logger.error("No permission to"
1732
" bind to interface %s",
1733
self.interface)
1734
elif error[0] == errno.ENOPROTOOPT:
1735
logger.error("SO_BINDTODEVICE not available;"
1736
" cannot bind to interface %s",
1737
self.interface)
1738
else:
1739
raise
2611
1740
# Only bind(2) the socket if we really need to.
2612
1741
if self.server_address[0] or self.server_address[1]:
2613
if self.server_address[1]:
2614
self.allow_reuse_address = True
2615
1742
if not self.server_address[0]:
2616
1743
if self.address_family == socket.AF_INET6:
2617
any_address = "::" # in6addr_any
1744
any_address = "::" # in6addr_any
2618
1745
else:
2619
any_address = "0.0.0.0" # INADDR_ANY
1746
any_address = socket.INADDR_ANY
2620
1747
self.server_address = (any_address,
2621
1748
self.server_address[1])
2622
1749
elif not self.server_address[1]:
2623
self.server_address = (self.server_address[0], 0)
1750
self.server_address = (self.server_address[0],
1751
0)
2624
1752
# if self.interface:
2625
1753
# self.server_address = (self.server_address[0],
2626
1754
# 0, # port
2632
1760
2633
1761
class MandosServer(IPv6_TCPServer):
2634
1762
"""Mandos server.
2635
1763
2636
1764
Attributes:
2637
1765
clients: set of Client objects
2638
1766
gnutls_priority GnuTLS priority string
2639
1767
use_dbus: Boolean; to emit D-Bus signals or not
2640
2641
Assumes a GLib.MainLoop event loop.
1768
1769
Assumes a gobject.MainLoop event loop.
2642
1770
"""
2643
2644
1771
def __init__(self, server_address, RequestHandlerClass,
2645
interface=None,
2646
use_ipv6=True,
2647
clients=None,
2648
gnutls_priority=None,
2649
use_dbus=True,
2650
socketfd=None):
1772
interface=None, use_ipv6=True, clients=None,
1773
gnutls_priority=None, use_dbus=True):
2651
1774
self.enabled = False
2652
1775
self.clients = clients
2653
1776
if self.clients is None:
2656
1779
self.gnutls_priority = gnutls_priority
2657
1780
IPv6_TCPServer.__init__(self, server_address,
2658
1781
RequestHandlerClass,
2659
interface=interface,
2660
use_ipv6=use_ipv6,
2661
socketfd=socketfd)
2662
1782
interface = interface,
1783
use_ipv6 = use_ipv6)
2663
1784
def server_activate(self):
2664
1785
if self.enabled:
2665
1786
return socketserver.TCPServer.server_activate(self)
2666
1787
2667
1788
def enable(self):
2668
1789
self.enabled = True
2669
1790
2670
1791
def add_pipe(self, parent_pipe, proc):
2671
1792
# Call "handle_ipc" for both data and EOF events
2672
GLib.io_add_watch(
2673
parent_pipe.fileno(),
2674
GLib.IO_IN | GLib.IO_HUP,
2675
functools.partial(self.handle_ipc,
2676
parent_pipe=parent_pipe,
2677
proc=proc))
2678
2679
def handle_ipc(self, source, condition,
2680
parent_pipe=None,
2681
proc=None,
2682
client_object=None):
1793
gobject.io_add_watch(parent_pipe.fileno(),
1794
gobject.IO_IN | gobject.IO_HUP,
1795
functools.partial(self.handle_ipc,
1796
parent_pipe =
1797
parent_pipe,
1798
proc = proc))
1799
1800
def handle_ipc(self, source, condition, parent_pipe=None,
1801
proc = None, client_object=None):
1802
condition_names = {
1803
gobject.IO_IN: "IN", # There is data to read.
1804
gobject.IO_OUT: "OUT", # Data can be written (without
1805
# blocking).
1806
gobject.IO_PRI: "PRI", # There is urgent data to read.
1807
gobject.IO_ERR: "ERR", # Error condition.
1808
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1809
# broken, usually for pipes and
1810
# sockets).
1811
}
1812
conditions_string = ' | '.join(name
1813
for cond, name in
1814
condition_names.iteritems()
1815
if cond & condition)
2683
1816
# error, or the other end of multiprocessing.Pipe has closed
2684
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1817
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2685
1818
# Wait for other process to exit
2686
1819
proc.join()
2687
1820
return False
2688
1821
2689
1822
# Read a request from the child
2690
1823
request = parent_pipe.recv()
2691
1824
command = request[0]
2692
1825
2693
1826
if command == 'init':
2694
key_id = request[1].decode("ascii")
2695
fpr = request[2].decode("ascii")
2696
address = request[3]
2697
2698
for c in self.clients.values():
2699
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2700
continue
2701
if key_id and c.key_id == key_id:
2702
client = c
2703
break
2704
if fpr and c.fingerprint == fpr:
1827
fpr = request[1]
1828
address = request[2]
1829
1830
for c in self.clients.itervalues():
1831
if c.fingerprint == fpr:
2705
1832
client = c
2706
1833
break
2707
1834
else:
2708
logger.info("Client not found for key ID: %s, address"
2709
": %s", key_id or fpr, address)
1835
logger.info("Client not found for fingerprint: %s, ad"
1836
"dress: %s", fpr, address)
2710
1837
if self.use_dbus:
2711
1838
# Emit D-Bus signal
2712
mandos_dbus_service.ClientNotFound(key_id or fpr,
1839
mandos_dbus_service.ClientNotFound(fpr,
2713
1840
address[0])
2714
1841
parent_pipe.send(False)
2715
1842
return False
2716
2717
GLib.io_add_watch(
2718
parent_pipe.fileno(),
2719
GLib.IO_IN | GLib.IO_HUP,
2720
functools.partial(self.handle_ipc,
2721
parent_pipe=parent_pipe,
2722
proc=proc,
2723
client_object=client))
1843
1844
gobject.io_add_watch(parent_pipe.fileno(),
1845
gobject.IO_IN | gobject.IO_HUP,
1846
functools.partial(self.handle_ipc,
1847
parent_pipe =
1848
parent_pipe,
1849
proc = proc,
1850
client_object =
1851
client))
2724
1852
parent_pipe.send(True)
2725
1853
# remove the old hook in favor of the new above hook on
2726
1854
# same fileno
2729
1857
funcname = request[1]
2730
1858
args = request[2]
2731
1859
kwargs = request[3]
2732
1860
2733
1861
parent_pipe.send(('data', getattr(client_object,
2734
1862
funcname)(*args,
2735
**kwargs)))
2736
1863
**kwargs)))
1864
2737
1865
if command == 'getattr':
2738
1866
attrname = request[1]
2739
if isinstance(client_object.__getattribute__(attrname),
2740
collections.Callable):
2741
parent_pipe.send(('function', ))
1867
if callable(client_object.__getattribute__(attrname)):
1868
parent_pipe.send(('function',))
2742
1869
else:
2743
parent_pipe.send((
2744
'data', client_object.__getattribute__(attrname)))
2745
1870
parent_pipe.send(('data', client_object
1871
.__getattribute__(attrname)))
1872
2746
1873
if command == 'setattr':
2747
1874
attrname = request[1]
2748
1875
value = request[2]
2749
1876
setattr(client_object, attrname, value)
2750
1877
2751
1878
return True
2752
1879
2753
1880
2754
def rfc3339_duration_to_delta(duration):
2755
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2756
2757
>>> rfc3339_duration_to_delta("P7D")
2758
datetime.timedelta(7)
2759
>>> rfc3339_duration_to_delta("PT60S")
2760
datetime.timedelta(0, 60)
2761
>>> rfc3339_duration_to_delta("PT60M")
2762
datetime.timedelta(0, 3600)
2763
>>> rfc3339_duration_to_delta("PT24H")
2764
datetime.timedelta(1)
2765
>>> rfc3339_duration_to_delta("P1W")
2766
datetime.timedelta(7)
2767
>>> rfc3339_duration_to_delta("PT5M30S")
2768
datetime.timedelta(0, 330)
2769
>>> rfc3339_duration_to_delta("P1DT3M20S")
2770
datetime.timedelta(1, 200)
2771
"""
2772
2773
# Parsing an RFC 3339 duration with regular expressions is not
2774
# possible - there would have to be multiple places for the same
2775
# values, like seconds. The current code, while more esoteric, is
2776
# cleaner without depending on a parsing library. If Python had a
2777
# built-in library for parsing we would use it, but we'd like to
2778
# avoid excessive use of external libraries.
2779
2780
# New type for defining tokens, syntax, and semantics all-in-one
2781
Token = collections.namedtuple("Token", (
2782
"regexp", # To match token; if "value" is not None, must have
2783
# a "group" containing digits
2784
"value", # datetime.timedelta or None
2785
"followers")) # Tokens valid after this token
2786
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2787
# the "duration" ABNF definition in RFC 3339, Appendix A.
2788
token_end = Token(re.compile(r"$"), None, frozenset())
2789
token_second = Token(re.compile(r"(\d+)S"),
2790
datetime.timedelta(seconds=1),
2791
frozenset((token_end, )))
2792
token_minute = Token(re.compile(r"(\d+)M"),
2793
datetime.timedelta(minutes=1),
2794
frozenset((token_second, token_end)))
2795
token_hour = Token(re.compile(r"(\d+)H"),
2796
datetime.timedelta(hours=1),
2797
frozenset((token_minute, token_end)))
2798
token_time = Token(re.compile(r"T"),
2799
None,
2800
frozenset((token_hour, token_minute,
2801
token_second)))
2802
token_day = Token(re.compile(r"(\d+)D"),
2803
datetime.timedelta(days=1),
2804
frozenset((token_time, token_end)))
2805
token_month = Token(re.compile(r"(\d+)M"),
2806
datetime.timedelta(weeks=4),
2807
frozenset((token_day, token_end)))
2808
token_year = Token(re.compile(r"(\d+)Y"),
2809
datetime.timedelta(weeks=52),
2810
frozenset((token_month, token_end)))
2811
token_week = Token(re.compile(r"(\d+)W"),
2812
datetime.timedelta(weeks=1),
2813
frozenset((token_end, )))
2814
token_duration = Token(re.compile(r"P"), None,
2815
frozenset((token_year, token_month,
2816
token_day, token_time,
2817
token_week)))
2818
# Define starting values:
2819
# Value so far
2820
value = datetime.timedelta()
2821
found_token = None
2822
# Following valid tokens
2823
followers = frozenset((token_duration, ))
2824
# String left to parse
2825
s = duration
2826
# Loop until end token is found
2827
while found_token is not token_end:
2828
# Search for any currently valid tokens
2829
for token in followers:
2830
match = token.regexp.match(s)
2831
if match is not None:
2832
# Token found
2833
if token.value is not None:
2834
# Value found, parse digits
2835
factor = int(match.group(1), 10)
2836
# Add to value so far
2837
value += factor * token.value
2838
# Strip token from string
2839
s = token.regexp.sub("", s, 1)
2840
# Go to found token
2841
found_token = token
2842
# Set valid next tokens
2843
followers = found_token.followers
2844
break
2845
else:
2846
# No currently valid tokens were found
2847
raise ValueError("Invalid RFC 3339 duration: {!r}"
2848
.format(duration))
2849
# End token found
2850
return value
2851
2852
2853
1881
def string_to_delta(interval):
2854
1882
"""Parse a string and return a datetime.timedelta
2855
1883
2856
1884
>>> string_to_delta('7d')
2857
1885
datetime.timedelta(7)
2858
1886
>>> string_to_delta('60s')
2866
1894
>>> string_to_delta('5m 30s')
2867
1895
datetime.timedelta(0, 330)
2868
1896
"""
2869
2870
try:
2871
return rfc3339_duration_to_delta(interval)
2872
except ValueError:
2873
pass
2874
2875
1897
timevalue = datetime.timedelta(0)
2876
1898
for s in interval.split():
2877
1899
try:
2878
suffix = s[-1]
1900
suffix = unicode(s[-1])
2879
1901
value = int(s[:-1])
2880
1902
if suffix == "d":
2881
1903
delta = datetime.timedelta(value)
2888
1910
elif suffix == "w":
2889
1911
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2890
1912
else:
2891
raise ValueError("Unknown suffix {!r}".format(suffix))
2892
except IndexError as e:
1913
raise ValueError("Unknown suffix %r" % suffix)
1914
except (ValueError, IndexError) as e:
2893
1915
raise ValueError(*(e.args))
2894
1916
timevalue += delta
2895
1917
return timevalue
2896
1918
2897
1919
2898
def daemon(nochdir=False, noclose=False):
1920
def daemon(nochdir = False, noclose = False):
2899
1921
"""See daemon(3). Standard BSD Unix function.
2900
1922
2901
1923
This should really exist as os.daemon, but it doesn't (yet)."""
2902
1924
if os.fork():
2903
1925
sys.exit()
2908
1930
sys.exit()
2909
1931
if not noclose:
2910
1932
# Close all standard open file descriptors
2911
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1933
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2912
1934
if not stat.S_ISCHR(os.fstat(null).st_mode):
2913
1935
raise OSError(errno.ENODEV,
2914
"{} not a character device"
2915
.format(os.devnull))
1936
"%s not a character device"
1937
% os.path.devnull)
2916
1938
os.dup2(null, sys.stdin.fileno())
2917
1939
os.dup2(null, sys.stdout.fileno())
2918
1940
os.dup2(null, sys.stderr.fileno())
2921
1943
2922
1944
2923
1945
def main():
2924
1946
2925
1947
##################################################################
2926
1948
# Parsing of options, both command line and config file
2927
1949
2928
1950
parser = argparse.ArgumentParser()
2929
1951
parser.add_argument("-v", "--version", action="version",
2930
version="%(prog)s {}".format(version),
1952
version = "%%(prog)s %s" % version,
2931
1953
help="show version number and exit")
2932
1954
parser.add_argument("-i", "--interface", metavar="IF",
2933
1955
help="Bind to interface IF")
2939
1961
help="Run self-test")
2940
1962
parser.add_argument("--debug", action="store_true",
2941
1963
help="Debug mode; run in foreground and log"
2942
" to terminal", default=None)
1964
" to terminal")
2943
1965
parser.add_argument("--debuglevel", metavar="LEVEL",
2944
1966
help="Debug level for stdout output")
2945
1967
parser.add_argument("--priority", help="GnuTLS"
2952
1974
" files")
2953
1975
parser.add_argument("--no-dbus", action="store_false",
2954
1976
dest="use_dbus", help="Do not provide D-Bus"
2955
" system bus interface", default=None)
1977
" system bus interface")
2956
1978
parser.add_argument("--no-ipv6", action="store_false",
2957
dest="use_ipv6", help="Do not use IPv6",
2958
default=None)
1979
dest="use_ipv6", help="Do not use IPv6")
2959
1980
parser.add_argument("--no-restore", action="store_false",
2960
1981
dest="restore", help="Do not restore stored"
2961
" state", default=None)
2962
parser.add_argument("--socket", type=int,
2963
help="Specify a file descriptor to a network"
2964
" socket to use instead of creating one")
1982
" state")
2965
1983
parser.add_argument("--statedir", metavar="DIR",
2966
1984
help="Directory to save/restore state in")
2967
parser.add_argument("--foreground", action="store_true",
2968
help="Run in foreground", default=None)
2969
parser.add_argument("--no-zeroconf", action="store_false",
2970
dest="zeroconf", help="Do not use Zeroconf",
2971
default=None)
2972
1985
2973
1986
options = parser.parse_args()
2974
1987
2975
1988
if options.check:
2976
1989
import doctest
2977
fail_count, test_count = doctest.testmod()
2978
sys.exit(os.EX_OK if fail_count == 0 else 1)
2979
1990
doctest.testmod()
1991
sys.exit()
1992
2980
1993
# Default values for config file for server-global settings
2981
if gnutls.has_rawpk:
2982
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2983
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2984
else:
2985
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2986
":+SIGN-DSA-SHA256")
2987
server_defaults = {"interface": "",
2988
"address": "",
2989
"port": "",
2990
"debug": "False",
2991
"priority": priority,
2992
"servicename": "Mandos",
2993
"use_dbus": "True",
2994
"use_ipv6": "True",
2995
"debuglevel": "",
2996
"restore": "True",
2997
"socket": "",
2998
"statedir": "/var/lib/mandos",
2999
"foreground": "False",
3000
"zeroconf": "True",
3001
}
3002
del priority
3003
1994
server_defaults = { "interface": "",
1995
"address": "",
1996
"port": "",
1997
"debug": "False",
1998
"priority":
1999
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2000
"servicename": "Mandos",
2001
"use_dbus": "True",
2002
"use_ipv6": "True",
2003
"debuglevel": "",
2004
"restore": "True",
2005
"statedir": "/var/lib/mandos"
2006
}
2007
3004
2008
# Parse config file for server-global settings
3005
server_config = configparser.ConfigParser(server_defaults)
2009
server_config = configparser.SafeConfigParser(server_defaults)
3006
2010
del server_defaults
3007
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3008
# Convert the ConfigParser object to a dict
2011
server_config.read(os.path.join(options.configdir,
2012
"mandos.conf"))
2013
# Convert the SafeConfigParser object to a dict
3009
2014
server_settings = server_config.defaults()
3010
2015
# Use the appropriate methods on the non-string config options
3011
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3012
"foreground", "zeroconf"):
2016
for option in ("debug", "use_dbus", "use_ipv6"):
3013
2017
server_settings[option] = server_config.getboolean("DEFAULT",
3014
2018
option)
3015
2019
if server_settings["port"]:
3016
2020
server_settings["port"] = server_config.getint("DEFAULT",
3017
2021
"port")
3018
if server_settings["socket"]:
3019
server_settings["socket"] = server_config.getint("DEFAULT",
3020
"socket")
3021
# Later, stdin will, and stdout and stderr might, be dup'ed
3022
# over with an opened os.devnull. But we don't want this to
3023
# happen with a supplied network socket.
3024
if 0 <= server_settings["socket"] <= 2:
3025
server_settings["socket"] = os.dup(server_settings
3026
["socket"])
3027
2022
del server_config
3028
2023
3029
2024
# Override the settings from the config file with command line
3030
2025
# options, if set.
3031
2026
for option in ("interface", "address", "port", "debug",
3032
"priority", "servicename", "configdir", "use_dbus",
3033
"use_ipv6", "debuglevel", "restore", "statedir",
3034
"socket", "foreground", "zeroconf"):
2027
"priority", "servicename", "configdir",
2028
"use_dbus", "use_ipv6", "debuglevel", "restore",
2029
"statedir"):
3035
2030
value = getattr(options, option)
3036
2031
if value is not None:
3037
2032
server_settings[option] = value
3038
2033
del options
3039
2034
# Force all strings to be unicode
3040
2035
for option in server_settings.keys():
3041
if isinstance(server_settings[option], bytes):
3042
server_settings[option] = (server_settings[option]
3043
.decode("utf-8"))
3044
# Force all boolean options to be boolean
3045
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3046
"foreground", "zeroconf"):
3047
server_settings[option] = bool(server_settings[option])
3048
# Debug implies foreground
3049
if server_settings["debug"]:
3050
server_settings["foreground"] = True
2036
if type(server_settings[option]) is str:
2037
server_settings[option] = unicode(server_settings[option])
3051
2038
# Now we have our good server settings in "server_settings"
3052
2039
3053
2040
##################################################################
3054
3055
if (not server_settings["zeroconf"]
3056
and not (server_settings["port"]
3057
or server_settings["socket"] != "")):
3058
parser.error("Needs port or socket to work without Zeroconf")
3059
2041
3060
2042
# For convenience
3061
2043
debug = server_settings["debug"]
3062
2044
debuglevel = server_settings["debuglevel"]
3064
2046
use_ipv6 = server_settings["use_ipv6"]
3065
2047
stored_state_path = os.path.join(server_settings["statedir"],
3066
2048
stored_state_file)
3067
foreground = server_settings["foreground"]
3068
zeroconf = server_settings["zeroconf"]
3069
2049
3070
2050
if debug:
3071
initlogger(debug, logging.DEBUG)
2051
initlogger(logging.DEBUG)
3072
2052
else:
3073
2053
if not debuglevel:
3074
initlogger(debug)
2054
initlogger()
3075
2055
else:
3076
2056
level = getattr(logging, debuglevel.upper())
3077
initlogger(debug, level)
3078
2057
initlogger(level)
2058
3079
2059
if server_settings["servicename"] != "Mandos":
3080
syslogger.setFormatter(
3081
logging.Formatter('Mandos ({}) [%(process)d]:'
3082
' %(levelname)s: %(message)s'.format(
3083
server_settings["servicename"])))
3084
2060
syslogger.setFormatter(logging.Formatter
2061
('Mandos (%s) [%%(process)d]:'
2062
' %%(levelname)s: %%(message)s'
2063
% server_settings["servicename"]))
2064
3085
2065
# Parse config file with clients
3086
client_config = configparser.ConfigParser(Client.client_defaults)
2066
client_defaults = { "timeout": "5m",
2067
"extended_timeout": "15m",
2068
"interval": "2m",
2069
"checker": "fping -q -- %%(host)s",
2070
"host": "",
2071
"approval_delay": "0s",
2072
"approval_duration": "1s",
2073
}
2074
client_config = configparser.SafeConfigParser(client_defaults)
3087
2075
client_config.read(os.path.join(server_settings["configdir"],
3088
2076
"clients.conf"))
3089
2077
3090
2078
global mandos_dbus_service
3091
2079
mandos_dbus_service = None
3092
3093
socketfd = None
3094
if server_settings["socket"] != "":
3095
socketfd = server_settings["socket"]
3096
tcp_server = MandosServer(
3097
(server_settings["address"], server_settings["port"]),
3098
ClientHandler,
3099
interface=(server_settings["interface"] or None),
3100
use_ipv6=use_ipv6,
3101
gnutls_priority=server_settings["priority"],
3102
use_dbus=use_dbus,
3103
socketfd=socketfd)
3104
if not foreground:
3105
pidfilename = "/run/mandos.pid"
3106
if not os.path.isdir("/run/."):
3107
pidfilename = "/var/run/mandos.pid"
3108
pidfile = None
3109
try:
3110
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3111
except IOError as e:
3112
logger.error("Could not open file %r", pidfilename,
3113
exc_info=e)
3114
3115
for name, group in (("_mandos", "_mandos"),
3116
("mandos", "mandos"),
3117
("nobody", "nogroup")):
3118
try:
3119
uid = pwd.getpwnam(name).pw_uid
3120
gid = pwd.getpwnam(group).pw_gid
3121
break
2080
2081
tcp_server = MandosServer((server_settings["address"],
2082
server_settings["port"]),
2083
ClientHandler,
2084
interface=(server_settings["interface"]
2085
or None),
2086
use_ipv6=use_ipv6,
2087
gnutls_priority=
2088
server_settings["priority"],
2089
use_dbus=use_dbus)
2090
if not debug:
2091
pidfilename = "/var/run/mandos.pid"
2092
try:
2093
pidfile = open(pidfilename, "w")
2094
except IOError:
2095
logger.error("Could not open file %r", pidfilename)
2096
2097
try:
2098
uid = pwd.getpwnam("_mandos").pw_uid
2099
gid = pwd.getpwnam("_mandos").pw_gid
2100
except KeyError:
2101
try:
2102
uid = pwd.getpwnam("mandos").pw_uid
2103
gid = pwd.getpwnam("mandos").pw_gid
3122
2104
except KeyError:
3123
continue
3124
else:
3125
uid = 65534
3126
gid = 65534
2105
try:
2106
uid = pwd.getpwnam("nobody").pw_uid
2107
gid = pwd.getpwnam("nobody").pw_gid
2108
except KeyError:
2109
uid = 65534
2110
gid = 65534
3127
2111
try:
3128
2112
os.setgid(gid)
3129
2113
os.setuid(uid)
3130
if debug:
3131
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3132
gid))
3133
2114
except OSError as error:
3134
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3135
.format(uid, gid, os.strerror(error.errno)))
3136
if error.errno != errno.EPERM:
3137
raise
3138
2115
if error[0] != errno.EPERM:
2116
raise error
2117
3139
2118
if debug:
3140
2119
# Enable all possible GnuTLS debugging
3141
2120
3142
2121
# "Use a log level over 10 to enable all debugging options."
3143
2122
# - GnuTLS manual
3144
gnutls.global_set_log_level(11)
3145
3146
@gnutls.log_func
2123
gnutls.library.functions.gnutls_global_set_log_level(11)
2124
2125
@gnutls.library.types.gnutls_log_func
3147
2126
def debug_gnutls(level, string):
3148
2127
logger.debug("GnuTLS: %s", string[:-1])
3149
3150
gnutls.global_set_log_function(debug_gnutls)
3151
2128
2129
(gnutls.library.functions
2130
.gnutls_global_set_log_function(debug_gnutls))
2131
3152
2132
# Redirect stdin so all checkers get /dev/null
3153
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2133
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3154
2134
os.dup2(null, sys.stdin.fileno())
3155
2135
if null > 2:
3156
2136
os.close(null)
3157
2137
else:
2138
# No console logging
2139
logger.removeHandler(console)
2140
3158
2141
# Need to fork before connecting to D-Bus
3159
if not foreground:
2142
if not debug:
3160
2143
# Close all input and output, do double fork, etc.
3161
2144
daemon()
3162
3163
if gi.version_info < (3, 10, 2):
3164
# multiprocessing will use threads, so before we use GLib we
3165
# need to inform GLib that threads will be used.
3166
GLib.threads_init()
3167
2145
3168
2146
global main_loop
3169
2147
# From the Avahi example code
3170
DBusGMainLoop(set_as_default=True)
3171
main_loop = GLib.MainLoop()
2148
DBusGMainLoop(set_as_default=True )
2149
main_loop = gobject.MainLoop()
3172
2150
bus = dbus.SystemBus()
3173
2151
# End of Avahi example code
3174
2152
if use_dbus:
3175
2153
try:
3176
2154
bus_name = dbus.service.BusName("se.recompile.Mandos",
3177
bus,
3178
do_not_queue=True)
3179
old_bus_name = dbus.service.BusName(
3180
"se.bsnet.fukt.Mandos", bus,
3181
do_not_queue=True)
3182
except dbus.exceptions.DBusException as e:
3183
logger.error("Disabling D-Bus:", exc_info=e)
2155
bus, do_not_queue=True)
2156
old_bus_name = (dbus.service.BusName
2157
("se.bsnet.fukt.Mandos", bus,
2158
do_not_queue=True))
2159
except dbus.exceptions.NameExistsException as e:
2160
logger.error(unicode(e) + ", disabling D-Bus")
3184
2161
use_dbus = False
3185
2162
server_settings["use_dbus"] = False
3186
2163
tcp_server.use_dbus = False
3187
if zeroconf:
3188
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3189
service = AvahiServiceToSyslog(
3190
name=server_settings["servicename"],
3191
servicetype="_mandos._tcp",
3192
protocol=protocol,
3193
bus=bus)
3194
if server_settings["interface"]:
3195
service.interface = if_nametoindex(
3196
server_settings["interface"].encode("utf-8"))
3197
2164
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2165
service = AvahiServiceToSyslog(name =
2166
server_settings["servicename"],
2167
servicetype = "_mandos._tcp",
2168
protocol = protocol, bus = bus)
2169
if server_settings["interface"]:
2170
service.interface = (if_nametoindex
2171
(str(server_settings["interface"])))
2172
3198
2173
global multiprocessing_manager
3199
2174
multiprocessing_manager = multiprocessing.Manager()
3200
2175
3201
2176
client_class = Client
3202
2177
if use_dbus:
3203
client_class = functools.partial(ClientDBus, bus=bus)
3204
3205
client_settings = Client.config_parser(client_config)
2178
client_class = functools.partial(ClientDBusTransitional,
2179
bus = bus)
2180
2181
special_settings = {
2182
# Some settings need to be accessd by special methods;
2183
# booleans need .getboolean(), etc. Here is a list of them:
2184
"approved_by_default":
2185
lambda section:
2186
client_config.getboolean(section, "approved_by_default"),
2187
"enabled":
2188
lambda section:
2189
client_config.getboolean(section, "enabled"),
2190
}
2191
# Construct a new dict of client settings of this form:
2192
# { client_name: {setting_name: value, ...}, ...}
2193
# with exceptions for any special settings as defined above
2194
client_settings = dict((clientname,
2195
dict((setting,
2196
(value
2197
if setting not in special_settings
2198
else special_settings[setting]
2199
(clientname)))
2200
for setting, value in
2201
client_config.items(clientname)))
2202
for clientname in client_config.sections())
2203
3206
2204
old_client_settings = {}
3207
clients_data = {}
3208
3209
# This is used to redirect stdout and stderr for checker processes
3210
global wnull
3211
wnull = open(os.devnull, "w") # A writable /dev/null
3212
# Only used if server is running in foreground but not in debug
3213
# mode
3214
if debug or not foreground:
3215
wnull.close()
3216
2205
clients_data = []
2206
3217
2207
# Get client data and settings from last running state.
3218
2208
if server_settings["restore"]:
3219
2209
try:
3220
2210
with open(stored_state_path, "rb") as stored_state:
3221
if sys.version_info.major == 2:
3222
clients_data, old_client_settings = pickle.load(
3223
stored_state)
3224
else:
3225
bytes_clients_data, bytes_old_client_settings = (
3226
pickle.load(stored_state, encoding="bytes"))
3227
# Fix bytes to strings
3228
# clients_data
3229
# .keys()
3230
clients_data = {(key.decode("utf-8")
3231
if isinstance(key, bytes)
3232
else key): value
3233
for key, value in
3234
bytes_clients_data.items()}
3235
del bytes_clients_data
3236
for key in clients_data:
3237
value = {(k.decode("utf-8")
3238
if isinstance(k, bytes) else k): v
3239
for k, v in
3240
clients_data[key].items()}
3241
clients_data[key] = value
3242
# .client_structure
3243
value["client_structure"] = [
3244
(s.decode("utf-8")
3245
if isinstance(s, bytes)
3246
else s) for s in
3247
value["client_structure"]]
3248
# .name & .host
3249
for k in ("name", "host"):
3250
if isinstance(value[k], bytes):
3251
value[k] = value[k].decode("utf-8")
3252
if "key_id" not in value:
3253
value["key_id"] = ""
3254
elif "fingerprint" not in value:
3255
value["fingerprint"] = ""
3256
# old_client_settings
3257
# .keys()
3258
old_client_settings = {
3259
(key.decode("utf-8")
3260
if isinstance(key, bytes)
3261
else key): value
3262
for key, value in
3263
bytes_old_client_settings.items()}
3264
del bytes_old_client_settings
3265
# .host
3266
for value in old_client_settings.values():
3267
if isinstance(value["host"], bytes):
3268
value["host"] = (value["host"]
3269
.decode("utf-8"))
2211
clients_data, old_client_settings = (pickle.load
2212
(stored_state))
3270
2213
os.remove(stored_state_path)
3271
2214
except IOError as e:
3272
if e.errno == errno.ENOENT:
3273
logger.warning("Could not load persistent state:"
3274
" {}".format(os.strerror(e.errno)))
3275
else:
3276
logger.critical("Could not load persistent state:",
3277
exc_info=e)
2215
logger.warning("Could not load persistent state: {0}"
2216
.format(e))
2217
if e.errno != errno.ENOENT:
3278
2218
raise
3279
except EOFError as e:
3280
logger.warning("Could not load persistent state: "
3281
"EOFError:",
3282
exc_info=e)
3283
3284
with PGPEngine() as pgp:
3285
for client_name, client in clients_data.items():
3286
# Skip removed clients
3287
if client_name not in client_settings:
3288
continue
3289
2219
2220
with Crypto() as crypt:
2221
for client in clients_data:
2222
client_name = client["name"]
2223
3290
2224
# Decide which value to use after restoring saved state.
3291
2225
# We have three different values: Old config file,
3292
2226
# new config file, and saved state.
3297
2231
# For each value in new config, check if it
3298
2232
# differs from the old config value (Except for
3299
2233
# the "secret" attribute)
3300
if (name != "secret"
3301
and (value !=
3302
old_client_settings[client_name][name])):
3303
client[name] = value
2234
if (name != "secret" and
2235
value != old_client_settings[client_name]
2236
[name]):
2237
setattr(client, name, value)
3304
2238
except KeyError:
3305
2239
pass
3306
2240
3307
2241
# Clients who has passed its expire date can still be
3308
# enabled if its last checker was successful. A Client
3309
# whose checker succeeded before we stored its state is
3310
# assumed to have successfully run all checkers during
3311
# downtime.
3312
if client["enabled"]:
3313
if datetime.datetime.utcnow() >= client["expires"]:
3314
if not client["last_checked_ok"]:
3315
logger.warning(
3316
"disabling client {} - Client never "
3317
"performed a successful checker".format(
3318
client_name))
3319
client["enabled"] = False
3320
elif client["last_checker_status"] != 0:
3321
logger.warning(
3322
"disabling client {} - Client last"
3323
" checker failed with error code"
3324
" {}".format(
3325
client_name,
3326
client["last_checker_status"]))
2242
# enabled if its last checker was sucessful. Clients
2243
# whose checker failed before we stored its state is
2244
# assumed to have failed all checkers during downtime.
2245
if client["enabled"] and client["last_checked_ok"]:
2246
if ((datetime.datetime.utcnow()
2247
- client["last_checked_ok"])
2248
> client["interval"]):
2249
if client["last_checker_status"] != 0:
3327
2250
client["enabled"] = False
3328
2251
else:
3329
client["expires"] = (
3330
datetime.datetime.utcnow()
3331
+ client["timeout"])
3332
logger.debug("Last checker succeeded,"
3333
" keeping {} enabled".format(
3334
client_name))
2252
client["expires"] = (datetime.datetime
2253
.utcnow()
2254
+ client["timeout"])
2255
2256
client["changedstate"] = (multiprocessing_manager
2257
.Condition
2258
(multiprocessing_manager
2259
.Lock()))
2260
if use_dbus:
2261
new_client = (ClientDBusTransitional.__new__
2262
(ClientDBusTransitional))
2263
tcp_server.clients[client_name] = new_client
2264
new_client.bus = bus
2265
for name, value in client.iteritems():
2266
setattr(new_client, name, value)
2267
client_object_name = unicode(client_name).translate(
2268
{ord("."): ord("_"),
2269
ord("-"): ord("_")})
2270
new_client.dbus_object_path = (dbus.ObjectPath
2271
("/clients/"
2272
+ client_object_name))
2273
DBusObjectWithProperties.__init__(new_client,
2274
new_client.bus,
2275
new_client
2276
.dbus_object_path)
2277
else:
2278
tcp_server.clients[client_name] = (Client.__new__
2279
(Client))
2280
for name, value in client.iteritems():
2281
setattr(tcp_server.clients[client_name],
2282
name, value)
2283
3335
2284
try:
3336
client["secret"] = pgp.decrypt(
3337
client["encrypted_secret"],
2285
tcp_server.clients[client_name].secret = (
2286
crypt.decrypt(tcp_server.clients[client_name]
2287
.encrypted_secret,
2288
client_settings[client_name]
2289
["secret"]))
2290
except CryptoError:
2291
# If decryption fails, we use secret from new settings
2292
tcp_server.clients[client_name].secret = (
3338
2293
client_settings[client_name]["secret"])
3339
except PGPError:
3340
# If decryption fails, we use secret from new settings
3341
logger.debug("Failed to decrypt {} old secret".format(
3342
client_name))
3343
client["secret"] = (client_settings[client_name]
3344
["secret"])
3345
3346
# Add/remove clients based on new changes made to config
3347
for client_name in (set(old_client_settings)
3348
- set(client_settings)):
3349
del clients_data[client_name]
3350
for client_name in (set(client_settings)
3351
- set(old_client_settings)):
3352
clients_data[client_name] = client_settings[client_name]
3353
3354
# Create all client objects
3355
for client_name, client in clients_data.items():
3356
tcp_server.clients[client_name] = client_class(
3357
name=client_name,
3358
settings=client,
3359
server_settings=server_settings)
3360
2294
2295
# Create/remove clients based on new changes made to config
2296
for clientname in set(old_client_settings) - set(client_settings):
2297
del tcp_server.clients[clientname]
2298
for clientname in set(client_settings) - set(old_client_settings):
2299
tcp_server.clients[clientname] = (client_class(name
2300
= clientname,
2301
config =
2302
client_settings
2303
[clientname]))
2304
3361
2305
if not tcp_server.clients:
3362
2306
logger.warning("No clients defined")
3363
3364
if not foreground:
3365
if pidfile is not None:
3366
pid = os.getpid()
3367
try:
3368
with pidfile:
3369
print(pid, file=pidfile)
3370
except IOError:
3371
logger.error("Could not write to file %r with PID %d",
3372
pidfilename, pid)
3373
del pidfile
2307
2308
if not debug:
2309
try:
2310
with pidfile:
2311
pid = os.getpid()
2312
pidfile.write(str(pid) + "\n".encode("utf-8"))
2313
del pidfile
2314
except IOError:
2315
logger.error("Could not write to file %r with PID %d",
2316
pidfilename, pid)
2317
except NameError:
2318
# "pidfile" was never created
2319
pass
3374
2320
del pidfilename
3375
3376
for termsig in (signal.SIGHUP, signal.SIGTERM):
3377
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3378
lambda: main_loop.quit() and False)
3379
2321
2322
signal.signal(signal.SIGINT, signal.SIG_IGN)
2323
2324
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2325
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2326
3380
2327
if use_dbus:
3381
3382
@alternate_dbus_interfaces(
3383
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3384
class MandosDBusService(DBusObjectWithObjectManager):
2328
class MandosDBusService(dbus.service.Object):
3385
2329
"""A D-Bus proxy object"""
3386
3387
2330
def __init__(self):
3388
2331
dbus.service.Object.__init__(self, bus, "/")
3389
3390
2332
_interface = "se.recompile.Mandos"
3391
2333
3392
2334
@dbus.service.signal(_interface, signature="o")
3393
2335
def ClientAdded(self, objpath):
3394
2336
"D-Bus signal"
3395
2337
pass
3396
2338
3397
2339
@dbus.service.signal(_interface, signature="ss")
3398
def ClientNotFound(self, key_id, address):
2340
def ClientNotFound(self, fingerprint, address):
3399
2341
"D-Bus signal"
3400
2342
pass
3401
3402
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3403
"true"})
2343
3404
2344
@dbus.service.signal(_interface, signature="os")
3405
2345
def ClientRemoved(self, objpath, name):
3406
2346
"D-Bus signal"
3407
2347
pass
3408
3409
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3410
"true"})
2348
3411
2349
@dbus.service.method(_interface, out_signature="ao")
3412
2350
def GetAllClients(self):
3413
2351
"D-Bus method"
3414
return dbus.Array(c.dbus_object_path for c in
3415
tcp_server.clients.values())
3416
3417
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3418
"true"})
2352
return dbus.Array(c.dbus_object_path
2353
for c in
2354
tcp_server.clients.itervalues())
2355
3419
2356
@dbus.service.method(_interface,
3420
2357
out_signature="a{oa{sv}}")
3421
2358
def GetAllClientsWithProperties(self):
3422
2359
"D-Bus method"
3423
2360
return dbus.Dictionary(
3424
{c.dbus_object_path: c.GetAll(
3425
"se.recompile.Mandos.Client")
3426
for c in tcp_server.clients.values()},
2361
((c.dbus_object_path, c.GetAll(""))
2362
for c in tcp_server.clients.itervalues()),
3427
2363
signature="oa{sv}")
3428
2364
3429
2365
@dbus.service.method(_interface, in_signature="o")
3430
2366
def RemoveClient(self, object_path):
3431
2367
"D-Bus method"
3432
for c in tcp_server.clients.values():
2368
for c in tcp_server.clients.itervalues():
3433
2369
if c.dbus_object_path == object_path:
3434
2370
del tcp_server.clients[c.name]
3435
2371
c.remove_from_connection()
3436
# Don't signal the disabling
2372
# Don't signal anything except ClientRemoved
3437
2373
c.disable(quiet=True)
3438
# Emit D-Bus signal for removal
3439
self.client_removed_signal(c)
2374
# Emit D-Bus signal
2375
self.ClientRemoved(object_path, c.name)
3440
2376
return
3441
2377
raise KeyError(object_path)
3442
2378
3443
2379
del _interface
3444
3445
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3446
out_signature="a{oa{sa{sv}}}")
3447
def GetManagedObjects(self):
3448
"""D-Bus method"""
3449
return dbus.Dictionary(
3450
{client.dbus_object_path:
3451
dbus.Dictionary(
3452
{interface: client.GetAll(interface)
3453
for interface in
3454
client._get_all_interface_names()})
3455
for client in tcp_server.clients.values()})
3456
3457
def client_added_signal(self, client):
3458
"""Send the new standard signal and the old signal"""
3459
if use_dbus:
3460
# New standard signal
3461
self.InterfacesAdded(
3462
client.dbus_object_path,
3463
dbus.Dictionary(
3464
{interface: client.GetAll(interface)
3465
for interface in
3466
client._get_all_interface_names()}))
3467
# Old signal
3468
self.ClientAdded(client.dbus_object_path)
3469
3470
def client_removed_signal(self, client):
3471
"""Send the new standard signal and the old signal"""
3472
if use_dbus:
3473
# New standard signal
3474
self.InterfacesRemoved(
3475
client.dbus_object_path,
3476
client._get_all_interface_names())
3477
# Old signal
3478
self.ClientRemoved(client.dbus_object_path,
3479
client.name)
3480
3481
mandos_dbus_service = MandosDBusService()
3482
3483
# Save modules to variables to exempt the modules from being
3484
# unloaded before the function registered with atexit() is run.
3485
mp = multiprocessing
3486
wn = wnull
3487
2380
2381
class MandosDBusServiceTransitional(MandosDBusService):
2382
__metaclass__ = AlternateDBusNamesMetaclass
2383
mandos_dbus_service = MandosDBusServiceTransitional()
2384
3488
2385
def cleanup():
3489
2386
"Cleanup function; run on exit"
3490
if zeroconf:
3491
service.cleanup()
3492
3493
mp.active_children()
3494
wn.close()
2387
service.cleanup()
2388
2389
multiprocessing.active_children()
3495
2390
if not (tcp_server.clients or client_settings):
3496
2391
return
3497
2392
3498
2393
# Store client before exiting. Secrets are encrypted with key
3499
2394
# based on what config file has. If config file is
3500
2395
# removed/edited, old secret will thus be unrecovable.
3501
clients = {}
3502
with PGPEngine() as pgp:
3503
for client in tcp_server.clients.values():
2396
clients = []
2397
with Crypto() as crypt:
2398
for client in tcp_server.clients.itervalues():
3504
2399
key = client_settings[client.name]["secret"]
3505
client.encrypted_secret = pgp.encrypt(client.secret,
3506
key)
2400
client.encrypted_secret = crypt.encrypt(client.secret,
2401
key)
3507
2402
client_dict = {}
3508
3509
# A list of attributes that can not be pickled
3510
# + secret.
3511
exclude = {"bus", "changedstate", "secret",
3512
"checker", "server_settings"}
3513
for name, typ in inspect.getmembers(dbus.service
3514
.Object):
2403
2404
# A list of attributes that will not be stored when
2405
# shutting down.
2406
exclude = set(("bus", "changedstate", "secret"))
2407
for name, typ in (inspect.getmembers
2408
(dbus.service.Object)):
3515
2409
exclude.add(name)
3516
2410
3517
2411
client_dict["encrypted_secret"] = (client
3518
2412
.encrypted_secret)
3519
2413
for attr in client.client_structure:
3520
2414
if attr not in exclude:
3521
2415
client_dict[attr] = getattr(client, attr)
3522
3523
clients[client.name] = client_dict
2416
2417
clients.append(client_dict)
3524
2418
del client_settings[client.name]["secret"]
3525
2419
3526
2420
try:
3527
with tempfile.NamedTemporaryFile(
3528
mode='wb',
3529
suffix=".pickle",
3530
prefix='clients-',
3531
dir=os.path.dirname(stored_state_path),
3532
delete=False) as stored_state:
3533
pickle.dump((clients, client_settings), stored_state,
3534
protocol=2)
3535
tempname = stored_state.name
3536
os.rename(tempname, stored_state_path)
2421
with os.fdopen(os.open(stored_state_path,
2422
os.O_CREAT|os.O_WRONLY|os.O_TRUNC,
2423
0600), "wb") as stored_state:
2424
pickle.dump((clients, client_settings), stored_state)
3537
2425
except (IOError, OSError) as e:
3538
if not debug:
3539
try:
3540
os.remove(tempname)
3541
except NameError:
3542
pass
3543
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3544
logger.warning("Could not save persistent state: {}"
3545
.format(os.strerror(e.errno)))
3546
else:
3547
logger.warning("Could not save persistent state:",
3548
exc_info=e)
2426
logger.warning("Could not save persistent state: {0}"
2427
.format(e))
2428
if e.errno not in (errno.ENOENT, errno.EACCES):
3549
2429
raise
3550
2430
3551
2431
# Delete all clients, and settings from config
3552
2432
while tcp_server.clients:
3553
2433
name, client = tcp_server.clients.popitem()
3554
2434
if use_dbus:
3555
2435
client.remove_from_connection()
3556
# Don't signal the disabling
2436
# Don't signal anything except ClientRemoved
3557
2437
client.disable(quiet=True)
3558
# Emit D-Bus signal for removal
3559
2438
if use_dbus:
3560
mandos_dbus_service.client_removed_signal(client)
2439
# Emit D-Bus signal
2440
mandos_dbus_service.ClientRemoved(client
2441
.dbus_object_path,
2442
client.name)
3561
2443
client_settings.clear()
3562
2444
3563
2445
atexit.register(cleanup)
3564
3565
for client in tcp_server.clients.values():
2446
2447
for client in tcp_server.clients.itervalues():
3566
2448
if use_dbus:
3567
# Emit D-Bus signal for adding
3568
mandos_dbus_service.client_added_signal(client)
2449
# Emit D-Bus signal
2450
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3569
2451
# Need to initiate checking of clients
3570
2452
if client.enabled:
3571
2453
client.init_checker()
3572
2454
3573
2455
tcp_server.enable()
3574
2456
tcp_server.server_activate()
3575
2457
3576
2458
# Find out what port we got
3577
if zeroconf:
3578
service.port = tcp_server.socket.getsockname()[1]
2459
service.port = tcp_server.socket.getsockname()[1]
3579
2460
if use_ipv6:
3580
2461
logger.info("Now listening on address %r, port %d,"
3581
" flowinfo %d, scope_id %d",
3582
*tcp_server.socket.getsockname())
2462
" flowinfo %d, scope_id %d"
2463
% tcp_server.socket.getsockname())
3583
2464
else: # IPv4
3584
logger.info("Now listening on address %r, port %d",
3585
*tcp_server.socket.getsockname())
3586
3587
# service.interface = tcp_server.socket.getsockname()[3]
3588
2465
logger.info("Now listening on address %r, port %d"
2466
% tcp_server.socket.getsockname())
2467
2468
#service.interface = tcp_server.socket.getsockname()[3]
2469
3589
2470
try:
3590
if zeroconf:
3591
# From the Avahi example code
3592
try:
3593
service.activate()
3594
except dbus.exceptions.DBusException as error:
3595
logger.critical("D-Bus Exception", exc_info=error)
3596
cleanup()
3597
sys.exit(1)
3598
# End of Avahi example code
3599
3600
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3601
lambda *args, **kwargs:
3602
(tcp_server.handle_request
3603
(*args[2:], **kwargs) or True))
3604
2471
# From the Avahi example code
2472
try:
2473
service.activate()
2474
except dbus.exceptions.DBusException as error:
2475
logger.critical("DBusException: %s", error)
2476
cleanup()
2477
sys.exit(1)
2478
# End of Avahi example code
2479
2480
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2481
lambda *args, **kwargs:
2482
(tcp_server.handle_request
2483
(*args[2:], **kwargs) or True))
2484
3605
2485
logger.debug("Starting main loop")
3606
2486
main_loop.run()
3607
2487
except AvahiError as error:
3608
logger.critical("Avahi Error", exc_info=error)
2488
logger.critical("AvahiError: %s", error)
3609
2489
cleanup()
3610
2490
sys.exit(1)
3611
2491
except KeyboardInterrupt:
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0