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- Committer: teddy at bsnet
- Date: 2011-11-12 18:14:55 UTC
- mto: (237.7.70 trunk)
- mto: This revision was merged to the branch mainline in revision 290.
- Revision ID: teddy@fukt.bsnet.se-20111112181455-8m6z4qrrib33bl2c
* plugins.d/mandos-client.c (SYNOPSIS, OPTIONS): Document
"--network-hook-dir"
option.
"--network-hook-dir"
option.
- 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
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
66
import hashlib
80
67
81
68
import dbus
82
69
import dbus.service
83
import gi
84
from gi.repository import GLib
70
import gobject
71
import avahi
85
72
from dbus.mainloop.glib import DBusGMainLoop
86
73
import ctypes
87
74
import ctypes.util
88
75
import xml.dom.minidom
89
76
import inspect
77
import Crypto.Cipher.AES
90
78
91
# Try to find the value of SO_BINDTODEVICE:
92
79
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
80
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
96
81
except AttributeError:
97
82
try:
98
# This is where SO_BINDTODEVICE was up to and including Python
99
# 2.6, and also 3.2:
100
83
from IN import SO_BINDTODEVICE
101
84
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"
123
stored_state_file = "clients.pickle"
85
SO_BINDTODEVICE = None
86
87
88
version = "1.4.1"
124
89
125
90
logger = logging.getLogger()
126
syslogger = None
127
128
try:
129
if_nametoindex = ctypes.cdll.LoadLibrary(
130
ctypes.util.find_library("c")).if_nametoindex
131
except (OSError, AttributeError):
132
133
def if_nametoindex(interface):
134
"Get an interface index the hard way, i.e. using fcntl()"
135
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
136
with contextlib.closing(socket.socket()) as s:
137
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
138
struct.pack(b"16s16x", interface))
139
interface_index = struct.unpack("I", ifreq[16:20])[0]
140
return interface_index
141
142
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):
160
"""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"))
166
syslogger.setFormatter(logging.Formatter
167
('Mandos [%(process)d]: %(levelname)s:'
168
' %(message)s'))
169
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)
178
logger.setLevel(level)
179
180
181
class PGPError(Exception):
182
"""Exception if encryption/decryption fails"""
183
pass
184
185
186
class PGPEngine(object):
187
"""A simple class for OpenPGP symmetric encryption & decryption"""
188
189
def __init__(self):
190
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
210
def __enter__(self):
211
return self
212
213
def __exit__(self, exc_type, exc_value, traceback):
214
self._cleanup()
215
return False
216
217
def __del__(self):
218
self._cleanup()
219
220
def _cleanup(self):
221
if self.tempdir is not None:
222
# Delete contents of tempdir
223
for root, dirs, files in os.walk(self.tempdir,
224
topdown=False):
225
for filename in files:
226
os.remove(os.path.join(root, filename))
227
for dirname in dirs:
228
os.rmdir(os.path.join(root, dirname))
229
# Remove tempdir
230
os.rmdir(self.tempdir)
231
self.tempdir = None
232
233
def password_encode(self, password):
234
# Passphrase can not be empty and can not contain newlines or
235
# 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
244
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)
260
return ciphertext
261
262
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)
278
return decrypted_plaintext
279
280
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
91
stored_state_path = "/var/lib/mandos/clients.pickle"
92
93
syslogger = (logging.handlers.SysLogHandler
94
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
95
address = str("/dev/log")))
96
syslogger.setFormatter(logging.Formatter
97
('Mandos [%(process)d]: %(levelname)s:'
98
' %(message)s'))
99
logger.addHandler(syslogger)
100
101
console = logging.StreamHandler()
102
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
103
' [%(process)d]:'
104
' %(levelname)s:'
105
' %(message)s'))
106
logger.addHandler(console)
305
107
306
108
307
109
class AvahiError(Exception):
308
110
def __init__(self, value, *args, **kwargs):
309
111
self.value = value
310
return super(AvahiError, self).__init__(value, *args,
311
**kwargs)
312
112
super(AvahiError, self).__init__(value, *args, **kwargs)
113
def __unicode__(self):
114
return unicode(repr(self.value))
313
115
314
116
class AvahiServiceError(AvahiError):
315
117
pass
316
118
317
318
119
class AvahiGroupError(AvahiError):
319
120
pass
320
121
321
122
322
123
class AvahiService(object):
323
124
"""An Avahi (Zeroconf) service.
324
125
325
126
Attributes:
326
127
interface: integer; avahi.IF_UNSPEC or an interface index.
327
128
Used to optionally bind to the specified interface.
328
129
name: string; Example: 'Mandos'
329
130
type: string; Example: '_mandos._tcp'.
330
See <https://www.iana.org/assignments/service-names-port-numbers>
131
See <http://www.dns-sd.org/ServiceTypes.html>
331
132
port: integer; what port to announce
332
133
TXT: list of strings; TXT record for the service
333
134
domain: string; Domain to publish on, default to .local if empty.
339
140
server: D-Bus Server
340
141
bus: dbus.SystemBus()
341
142
"""
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):
143
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
144
servicetype = None, port = None, TXT = None,
145
domain = "", host = "", max_renames = 32768,
146
protocol = avahi.PROTO_UNSPEC, bus = None):
354
147
self.interface = interface
355
148
self.name = name
356
149
self.type = servicetype
365
158
self.server = None
366
159
self.bus = bus
367
160
self.entry_group_state_changed_match = None
368
369
def rename(self, remove=True):
161
def rename(self):
370
162
"""Derived from the Avahi example code"""
371
163
if self.rename_count >= self.max_renames:
372
164
logger.critical("No suitable Zeroconf service name found"
373
165
" after %i retries, exiting.",
374
166
self.rename_count)
375
167
raise AvahiServiceError("Too many renames")
376
self.name = str(
377
self.server.GetAlternativeServiceName(self.name))
378
self.rename_count += 1
168
self.name = unicode(self.server
169
.GetAlternativeServiceName(self.name))
379
170
logger.info("Changing Zeroconf service name to %r ...",
380
171
self.name)
381
if remove:
382
self.remove()
172
self.remove()
383
173
try:
384
174
self.add()
385
175
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
176
logger.critical("DBusException: %s", error)
177
self.cleanup()
178
os._exit(1)
179
self.rename_count += 1
395
180
def remove(self):
396
181
"""Derived from the Avahi example code"""
397
182
if self.entry_group_state_changed_match is not None:
399
184
self.entry_group_state_changed_match = None
400
185
if self.group is not None:
401
186
self.group.Reset()
402
403
187
def add(self):
404
188
"""Derived from the Avahi example code"""
405
189
self.remove()
422
206
dbus.UInt16(self.port),
423
207
avahi.string_array_to_txt_array(self.TXT))
424
208
self.group.Commit()
425
426
209
def entry_group_state_changed(self, state, error):
427
210
"""Derived from the Avahi example code"""
428
211
logger.debug("Avahi entry group state change: %i", state)
429
212
430
213
if state == avahi.ENTRY_GROUP_ESTABLISHED:
431
214
logger.debug("Zeroconf service established.")
432
215
elif state == avahi.ENTRY_GROUP_COLLISION:
434
217
self.rename()
435
218
elif state == avahi.ENTRY_GROUP_FAILURE:
436
219
logger.critical("Avahi: Error in group state changed %s",
437
str(error))
438
raise AvahiGroupError("State changed: {!s}".format(error))
439
220
unicode(error))
221
raise AvahiGroupError("State changed: %s"
222
% unicode(error))
440
223
def cleanup(self):
441
224
"""Derived from the Avahi example code"""
442
225
if self.group is not None:
443
226
try:
444
227
self.group.Free()
445
228
except (dbus.exceptions.UnknownMethodException,
446
dbus.exceptions.DBusException):
229
dbus.exceptions.DBusException) as e:
447
230
pass
448
231
self.group = None
449
232
self.remove()
450
451
233
def server_state_changed(self, state, error=None):
452
234
"""Derived from the Avahi example code"""
453
235
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
}
236
bad_states = { avahi.SERVER_INVALID:
237
"Zeroconf server invalid",
238
avahi.SERVER_REGISTERING: None,
239
avahi.SERVER_COLLISION:
240
"Zeroconf server name collision",
241
avahi.SERVER_FAILURE:
242
"Zeroconf server failure" }
460
243
if state in bad_states:
461
244
if bad_states[state] is not None:
462
245
if error is None:
465
248
logger.error(bad_states[state] + ": %r", error)
466
249
self.cleanup()
467
250
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)
251
self.add()
480
252
else:
481
253
if error is None:
482
254
logger.debug("Unknown state: %r", state)
483
255
else:
484
256
logger.debug("Unknown state: %r: %r", state, error)
485
486
257
def activate(self):
487
258
"""Derived from the Avahi example code"""
488
259
if self.server is None:
492
263
follow_name_owner_changes=True),
493
264
avahi.DBUS_INTERFACE_SERVER)
494
265
self.server.connect_to_signal("StateChanged",
495
self.server_state_changed)
266
self.server_state_changed)
496
267
self.server_state_changed(self.server.GetState())
497
268
498
499
269
class AvahiServiceToSyslog(AvahiService):
500
def rename(self, *args, **kwargs):
270
def rename(self):
501
271
"""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)))
272
ret = AvahiService.rename(self)
273
syslogger.setFormatter(logging.Formatter
274
('Mandos (%s) [%%(process)d]:'
275
' %%(levelname)s: %%(message)s'
276
% self.name))
506
277
return ret
507
278
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
279
def _timedelta_to_milliseconds(td):
280
"Convert a datetime.timedelta() to milliseconds"
281
return ((td.days * 24 * 60 * 60 * 1000)
282
+ (td.seconds * 1000)
283
+ (td.microseconds // 1000))
284
821
285
class Client(object):
822
286
"""A representation of a client host served by this server.
823
287
824
288
Attributes:
825
approved: bool(); 'None' if not yet approved/disapproved
289
_approved: bool(); 'None' if not yet approved/disapproved
826
290
approval_delay: datetime.timedelta(); Time to wait for approval
827
291
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
292
checker: subprocess.Popen(); a running checker process used
293
to see if the client lives.
294
'None' if no process is running.
295
checker_callback_tag: a gobject event source tag, or None
832
296
checker_command: string; External command which is run to check
833
297
if client lives. %() expansions are done at
834
298
runtime with vars(self) as dict, so that for
835
299
instance %(name)s can be used in the command.
836
checker_initiator_tag: a GLib event source tag, or None
300
checker_initiator_tag: a gobject event source tag, or None
837
301
created: datetime.datetime(); (UTC) object creation
838
302
client_structure: Object describing what attributes a client has
839
303
and is used for storing the client at exit
840
304
current_checker_command: string; current running checker_command
841
disable_initiator_tag: a GLib event source tag, or None
305
disable_initiator_tag: a gobject event source tag, or None
842
306
enabled: bool()
843
307
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
308
uniquely identify the client
847
309
host: string; available for use by the checker command
848
310
interval: datetime.timedelta(); How often to start a new checker
849
311
last_approval_request: datetime.datetime(); (UTC) or None
850
312
last_checked_ok: datetime.datetime(); (UTC) or None
851
313
last_checker_status: integer between 0 and 255 reflecting exit
852
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
856
last_enabled: datetime.datetime(); (UTC) or None
314
status of last checker. -1 reflect crashed
315
checker, or None.
316
last_enabled: datetime.datetime(); (UTC)
857
317
name: string; from the config file, used in log messages and
858
318
D-Bus identifiers
859
319
secret: bytestring; sent verbatim (over TLS) to client
860
320
timeout: datetime.timedelta(); How long from last_checked_ok
861
321
until this client is disabled
862
extended_timeout: extra long timeout when secret has been sent
322
extended_timeout: extra long timeout when password has been sent
863
323
runtime_expansions: Allowed attributes for runtime expansion.
864
324
expires: datetime.datetime(); time (UTC) when a client will be
865
325
disabled, or None
866
server_settings: The server_settings dict from main()
867
326
"""
868
327
869
328
runtime_expansions = ("approval_delay", "approval_duration",
870
"created", "enabled", "expires", "key_id",
871
"fingerprint", "host", "interval",
872
"last_approval_request", "last_checked_ok",
329
"created", "enabled", "fingerprint",
330
"host", "interval", "last_checked_ok",
873
331
"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):
332
333
def timeout_milliseconds(self):
334
"Return the 'timeout' attribute in milliseconds"
335
return _timedelta_to_milliseconds(self.timeout)
336
337
def extended_timeout_milliseconds(self):
338
"Return the 'extended_timeout' attribute in milliseconds"
339
return _timedelta_to_milliseconds(self.extended_timeout)
340
341
def interval_milliseconds(self):
342
"Return the 'interval' attribute in milliseconds"
343
return _timedelta_to_milliseconds(self.interval)
344
345
def approval_delay_milliseconds(self):
346
return _timedelta_to_milliseconds(self.approval_delay)
347
348
def __init__(self, name = None, config=None):
349
"""Note: the 'checker' key in 'config' sets the
350
'checker_command' attribute and *not* the 'checker'
351
attribute."""
941
352
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
353
if config is None:
354
config = {}
959
355
logger.debug("Creating client %r", self.name)
960
logger.debug(" Key ID: %s", self.key_id)
356
# Uppercase and remove spaces from fingerprint for later
357
# comparison purposes with return value from the fingerprint()
358
# function
359
self.fingerprint = (config["fingerprint"].upper()
360
.replace(" ", ""))
961
361
logger.debug(" Fingerprint: %s", self.fingerprint)
962
self.created = settings.get("created",
963
datetime.datetime.utcnow())
964
965
# attributes specific for this server instance
362
if "secret" in config:
363
self.secret = config["secret"].decode("base64")
364
elif "secfile" in config:
365
with open(os.path.expanduser(os.path.expandvars
366
(config["secfile"])),
367
"rb") as secfile:
368
self.secret = secfile.read()
369
else:
370
raise TypeError("No secret or secfile for client %s"
371
% self.name)
372
self.host = config.get("host", "")
373
self.created = datetime.datetime.utcnow()
374
self.enabled = True
375
self.last_approval_request = None
376
self.last_enabled = datetime.datetime.utcnow()
377
self.last_checked_ok = None
378
self.last_checker_status = None
379
self.timeout = string_to_delta(config["timeout"])
380
self.extended_timeout = string_to_delta(config
381
["extended_timeout"])
382
self.interval = string_to_delta(config["interval"])
966
383
self.checker = None
967
384
self.checker_initiator_tag = None
968
385
self.disable_initiator_tag = None
386
self.expires = datetime.datetime.utcnow() + self.timeout
969
387
self.checker_callback_tag = None
388
self.checker_command = config["checker"]
970
389
self.current_checker_command = None
971
self.approved = None
390
self._approved = None
391
self.approved_by_default = config.get("approved_by_default",
392
True)
972
393
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()
394
self.approval_delay = string_to_delta(
395
config["approval_delay"])
396
self.approval_duration = string_to_delta(
397
config["approval_duration"])
398
self.changedstate = (multiprocessing_manager
399
.Condition(multiprocessing_manager
400
.Lock()))
401
self.client_structure = [attr for attr
402
in self.__dict__.iterkeys()
977
403
if not attr.startswith("_")]
978
404
self.client_structure.append("client_structure")
979
405
980
for name, t in inspect.getmembers(
981
type(self), lambda obj: isinstance(obj, property)):
406
407
for name, t in inspect.getmembers(type(self),
408
lambda obj:
409
isinstance(obj,
410
property)):
982
411
if not name.startswith("_"):
983
412
self.client_structure.append(name)
984
413
985
414
# Send notice to process children that client state has changed
986
415
def send_changedstate(self):
987
416
with self.changedstate:
988
417
self.changedstate.notify_all()
989
418
990
419
def enable(self):
991
420
"""Start this client's checker and timeout hooks"""
992
421
if getattr(self, "enabled", False):
993
422
# Already enabled
994
423
return
424
self.send_changedstate()
995
425
self.expires = datetime.datetime.utcnow() + self.timeout
996
426
self.enabled = True
997
427
self.last_enabled = datetime.datetime.utcnow()
998
428
self.init_checker()
999
self.send_changedstate()
1000
429
1001
430
def disable(self, quiet=True):
1002
431
"""Disable this client."""
1003
432
if not getattr(self, "enabled", False):
1004
433
return False
1005
434
if not quiet:
435
self.send_changedstate()
436
if not quiet:
1006
437
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)
438
if getattr(self, "disable_initiator_tag", False):
439
gobject.source_remove(self.disable_initiator_tag)
1009
440
self.disable_initiator_tag = None
1010
441
self.expires = None
1011
if getattr(self, "checker_initiator_tag", None) is not None:
1012
GLib.source_remove(self.checker_initiator_tag)
442
if getattr(self, "checker_initiator_tag", False):
443
gobject.source_remove(self.checker_initiator_tag)
1013
444
self.checker_initiator_tag = None
1014
445
self.stop_checker()
1015
446
self.enabled = False
1016
if not quiet:
1017
self.send_changedstate()
1018
# Do not run this again if called by a GLib.timeout_add
447
# Do not run this again if called by a gobject.timeout_add
1019
448
return False
1020
449
1021
450
def __del__(self):
1022
451
self.disable()
1023
452
1024
453
def init_checker(self):
1025
454
# Schedule a new checker to be started an 'interval' from now,
1026
455
# 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)
456
self.checker_initiator_tag = (gobject.timeout_add
457
(self.interval_milliseconds(),
458
self.start_checker))
1032
459
# 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)
460
self.disable_initiator_tag = (gobject.timeout_add
461
(self.timeout_milliseconds(),
462
self.disable))
1037
463
# Also start a new checker *right now*.
1038
464
self.start_checker()
1039
465
1040
def checker_callback(self, source, condition, connection,
1041
command):
466
467
def checker_callback(self, pid, condition, command):
1042
468
"""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
469
self.checker_callback_tag = None
1048
470
self.checker = None
1049
1050
if returncode >= 0:
1051
self.last_checker_status = returncode
1052
self.last_checker_signal = None
471
if os.WIFEXITED(condition):
472
self.last_checker_status = os.WEXITSTATUS(condition)
1053
473
if self.last_checker_status == 0:
1054
474
logger.info("Checker for %(name)s succeeded",
1055
475
vars(self))
1056
476
self.checked_ok()
1057
477
else:
1058
logger.info("Checker for %(name)s failed", vars(self))
478
logger.info("Checker for %(name)s failed",
479
vars(self))
1059
480
else:
1060
481
self.last_checker_status = -1
1061
self.last_checker_signal = -returncode
1062
482
logger.warning("Checker for %(name)s crashed?",
1063
483
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."""
484
485
def checked_ok(self, timeout=None):
486
"""Bump up the timeout for this client.
487
488
This should only be called when the client has been seen,
489
alive and well.
490
"""
1075
491
if timeout is None:
1076
492
timeout = self.timeout
493
self.last_checked_ok = datetime.datetime.utcnow()
1077
494
if self.disable_initiator_tag is not None:
1078
GLib.source_remove(self.disable_initiator_tag)
1079
self.disable_initiator_tag = None
495
gobject.source_remove(self.disable_initiator_tag)
1080
496
if getattr(self, "enabled", False):
1081
self.disable_initiator_tag = GLib.timeout_add(
1082
int(timeout.total_seconds() * 1000), self.disable)
497
self.disable_initiator_tag = (gobject.timeout_add
498
(_timedelta_to_milliseconds
499
(timeout), self.disable))
1083
500
self.expires = datetime.datetime.utcnow() + timeout
1084
501
1085
502
def need_approval(self):
1086
503
self.last_approval_request = datetime.datetime.utcnow()
1087
504
1088
505
def start_checker(self):
1089
506
"""Start a new checker subprocess if one is not running.
1090
507
1091
508
If a checker already exists, leave it running and do
1092
509
nothing."""
1093
510
# 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
511
# did that, then if a checker (for some reason) started
512
# running slowly and taking more than 'interval' time, the
513
# client would inevitably timeout, since no checker would get
514
# a chance to run to completion. If we instead leave running
1098
515
# checkers alone, the checker would have to take more time
1099
516
# than 'timeout' for the client to be disabled, which is as it
1100
517
# 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
518
519
# If a checker exists, make sure it is not a zombie
520
try:
521
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
522
except (AttributeError, OSError) as error:
523
if (isinstance(error, OSError)
524
and error.errno != errno.ECHILD):
525
raise error
526
else:
527
if pid:
528
logger.warning("Checker was a zombie")
529
gobject.source_remove(self.checker_callback_tag)
530
self.checker_callback(pid, status,
531
self.current_checker_command)
1106
532
# Start a new checker if needed
1107
533
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
534
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
535
# In case checker_command has exactly one % operator
536
command = self.checker_command % self.host
537
except TypeError:
538
# Escape attributes for the shell
539
escaped_attrs = dict(
540
(attr,
541
re.escape(unicode(str(getattr(self, attr, "")),
542
errors=
543
'replace')))
544
for attr in
545
self.runtime_expansions)
546
547
try:
548
command = self.checker_command % escaped_attrs
549
except TypeError as error:
550
logger.error('Could not format string "%s":'
551
' %s', self.checker_command, error)
552
return True # Try again later
1119
553
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
554
try:
555
logger.info("Starting checker %r for %s",
556
command, self.name)
557
# We don't need to redirect stdout and stderr, since
558
# in normal mode, that is already done by daemon(),
559
# and in debug mode we don't want to. (Stdin is
560
# always replaced by /dev/null.)
561
self.checker = subprocess.Popen(command,
562
close_fds=True,
563
shell=True, cwd="/")
564
self.checker_callback_tag = (gobject.child_watch_add
565
(self.checker.pid,
566
self.checker_callback,
567
data=command))
568
# The checker may have completed before the gobject
569
# watch was added. Check for this.
570
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
571
if pid:
572
gobject.source_remove(self.checker_callback_tag)
573
self.checker_callback(pid, status, command)
574
except OSError as error:
575
logger.error("Failed to start subprocess: %s",
576
error)
577
# Re-run this periodically if run by gobject.timeout_add
1146
578
return True
1147
579
1148
580
def stop_checker(self):
1149
581
"""Force the checker process, if any, to stop."""
1150
582
if self.checker_callback_tag:
1151
GLib.source_remove(self.checker_callback_tag)
583
gobject.source_remove(self.checker_callback_tag)
1152
584
self.checker_callback_tag = None
1153
585
if getattr(self, "checker", None) is None:
1154
586
return
1155
587
logger.debug("Stopping checker for %(name)s", vars(self))
1156
self.checker.terminate()
588
try:
589
os.kill(self.checker.pid, signal.SIGTERM)
590
#time.sleep(0.5)
591
#if self.checker.poll() is None:
592
# os.kill(self.checker.pid, signal.SIGKILL)
593
except OSError as error:
594
if error.errno != errno.ESRCH: # No such process
595
raise
1157
596
self.checker = None
1158
597
1159
1160
def dbus_service_property(dbus_interface,
1161
signature="v",
1162
access="readwrite",
1163
byte_arrays=False):
598
# Encrypts a client secret and stores it in a varible
599
# encrypted_secret
600
def encrypt_secret(self, key):
601
# Encryption-key need to be of a specific size, so we hash
602
# supplied key
603
hasheng = hashlib.sha256()
604
hasheng.update(key)
605
encryptionkey = hasheng.digest()
606
607
# Create validation hash so we know at decryption if it was
608
# sucessful
609
hasheng = hashlib.sha256()
610
hasheng.update(self.secret)
611
validationhash = hasheng.digest()
612
613
# Encrypt secret
614
iv = os.urandom(Crypto.Cipher.AES.block_size)
615
ciphereng = Crypto.Cipher.AES.new(encryptionkey,
616
Crypto.Cipher.AES.MODE_CFB, iv)
617
ciphertext = ciphereng.encrypt(validationhash+self.secret)
618
self.encrypted_secret = (ciphertext, iv)
619
620
# Decrypt a encrypted client secret
621
def decrypt_secret(self, key):
622
# Decryption-key need to be of a specific size, so we hash
623
# supplied key
624
hasheng = hashlib.sha256()
625
hasheng.update(key)
626
encryptionkey = hasheng.digest()
627
628
# Decrypt encrypted secret
629
ciphertext, iv = self.encrypted_secret
630
ciphereng = Crypto.Cipher.AES.new(encryptionkey,
631
Crypto.Cipher.AES.MODE_CFB, iv)
632
plain = ciphereng.decrypt(ciphertext)
633
634
# Validate decrypted secret to know if it was succesful
635
hasheng = hashlib.sha256()
636
validationhash = plain[:hasheng.digest_size]
637
secret = plain[hasheng.digest_size:]
638
hasheng.update(secret)
639
640
# If validation fails, we use key as new secret. Otherwise, we
641
# use the decrypted secret
642
if hasheng.digest() == validationhash:
643
self.secret = secret
644
else:
645
self.secret = key
646
del self.encrypted_secret
647
648
649
def dbus_service_property(dbus_interface, signature="v",
650
access="readwrite", byte_arrays=False):
1164
651
"""Decorators for marking methods of a DBusObjectWithProperties to
1165
652
become properties on the D-Bus.
1166
653
1167
654
The decorated method will be called with no arguments by "Get"
1168
655
and with one argument by "Set".
1169
656
1170
657
The parameters, where they are supported, are the same as
1171
658
dbus.service.method, except there is only "signature", since the
1172
659
type from Get() and the type sent to Set() is the same.
1175
662
# "Set" method, so we fail early here:
1176
663
if byte_arrays and signature != "ay":
1177
664
raise ValueError("Byte arrays not supported for non-'ay'"
1178
" signature {!r}".format(signature))
1179
665
" signature %r" % signature)
1180
666
def decorator(func):
1181
667
func._dbus_is_property = True
1182
668
func._dbus_interface = dbus_interface
1185
671
func._dbus_name = func.__name__
1186
672
if func._dbus_name.endswith("_dbus_property"):
1187
673
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
674
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
675
return func
1234
676
return decorator
1235
677
1236
678
1237
679
class DBusPropertyException(dbus.exceptions.DBusException):
1238
680
"""A base class for D-Bus property-related exceptions
1239
681
"""
1240
pass
682
def __unicode__(self):
683
return unicode(str(self))
1241
684
1242
685
1243
686
class DBusPropertyAccessException(DBusPropertyException):
1252
695
pass
1253
696
1254
697
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):
698
class DBusObjectWithProperties(dbus.service.Object):
1345
699
"""A D-Bus object with properties.
1346
700
1347
701
Classes inheriting from this can use the dbus_service_property
1348
702
decorator to expose methods as D-Bus properties. It exposes the
1349
703
standard Get(), Set(), and GetAll() methods on the D-Bus.
1350
704
"""
1351
705
706
@staticmethod
707
def _is_dbus_property(obj):
708
return getattr(obj, "_dbus_is_property", False)
709
710
def _get_all_dbus_properties(self):
711
"""Returns a generator of (name, attribute) pairs
712
"""
713
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
714
for cls in self.__class__.__mro__
715
for name, prop in
716
inspect.getmembers(cls, self._is_dbus_property))
717
1352
718
def _get_dbus_property(self, interface_name, property_name):
1353
719
"""Returns a bound method if one exists which is a D-Bus
1354
720
property with the specified name and interface.
1355
721
"""
1356
for cls in self.__class__.__mro__:
1357
for name, value in inspect.getmembers(
1358
cls, self._is_dbus_thing("property")):
722
for cls in self.__class__.__mro__:
723
for name, value in (inspect.getmembers
724
(cls, self._is_dbus_property)):
1359
725
if (value._dbus_name == property_name
1360
726
and value._dbus_interface == interface_name):
1361
727
return value.__get__(self)
1362
728
1363
729
# 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",
730
raise DBusPropertyNotFound(self.dbus_object_path + ":"
731
+ interface_name + "."
732
+ property_name)
733
734
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1378
735
out_signature="v")
1379
736
def Get(self, interface_name, property_name):
1380
737
"""Standard D-Bus property Get() method, see D-Bus standard.
1386
743
if not hasattr(value, "variant_level"):
1387
744
return value
1388
745
return type(value)(value, variant_level=value.variant_level+1)
1389
746
1390
747
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1391
748
def Set(self, interface_name, property_name, value):
1392
749
"""Standard D-Bus property Set() method, see D-Bus standard.
1398
755
# The byte_arrays option is not supported yet on
1399
756
# signatures other than "ay".
1400
757
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))
758
raise ValueError
759
value = dbus.ByteArray(''.join(unichr(byte)
760
for byte in value))
1406
761
prop(value)
1407
1408
@dbus.service.method(dbus.PROPERTIES_IFACE,
1409
in_signature="s",
762
763
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1410
764
out_signature="a{sv}")
1411
765
def GetAll(self, interface_name):
1412
766
"""Standard D-Bus property GetAll() method, see D-Bus
1413
767
standard.
1414
768
1415
769
Note: Will not include properties with access="write".
1416
770
"""
1417
properties = {}
1418
for name, prop in self._get_all_dbus_things("property"):
771
all = {}
772
for name, prop in self._get_all_dbus_properties():
1419
773
if (interface_name
1420
774
and interface_name != prop._dbus_interface):
1421
775
# Interface non-empty but did not match
1425
779
continue
1426
780
value = prop()
1427
781
if not hasattr(value, "variant_level"):
1428
properties[name] = value
782
all[name] = value
1429
783
continue
1430
properties[name] = type(value)(
1431
value, variant_level=value.variant_level + 1)
1432
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
784
all[name] = type(value)(value, variant_level=
785
value.variant_level+1)
786
return dbus.Dictionary(all, signature="sv")
787
1442
788
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1443
789
out_signature="s",
1444
790
path_keyword='object_path',
1445
791
connection_keyword='connection')
1446
792
def Introspect(self, object_path, connection):
1447
"""Overloading of standard D-Bus method.
1448
1449
Inserts property tags and interface annotation tags.
793
"""Standard D-Bus method, overloaded to insert property tags.
1450
794
"""
1451
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1452
object_path,
1453
connection)
795
xmlstring = dbus.service.Object.Introspect(self, object_path,
796
connection)
1454
797
try:
1455
798
document = xml.dom.minidom.parseString(xmlstring)
1456
1457
799
def make_tag(document, name, prop):
1458
800
e = document.createElement("property")
1459
801
e.setAttribute("name", name)
1460
802
e.setAttribute("type", prop._dbus_signature)
1461
803
e.setAttribute("access", prop._dbus_access)
1462
804
return e
1463
1464
805
for if_tag in document.getElementsByTagName("interface"):
1465
# Add property tags
1466
806
for tag in (make_tag(document, name, prop)
1467
807
for name, prop
1468
in self._get_all_dbus_things("property")
808
in self._get_all_dbus_properties()
1469
809
if prop._dbus_interface
1470
810
== if_tag.getAttribute("name")):
1471
811
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
812
# Add the names to the return values for the
1489
813
# "org.freedesktop.DBus.Properties" methods
1490
814
if (if_tag.getAttribute("name")
1505
829
except (AttributeError, xml.dom.DOMException,
1506
830
xml.parsers.expat.ExpatError) as error:
1507
831
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):
832
error)
833
return xmlstring
834
835
836
def datetime_to_dbus (dt, variant_level=0):
1584
837
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1585
838
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).
839
return dbus.String("", variant_level = variant_level)
840
return dbus.String(dt.isoformat(),
841
variant_level=variant_level)
842
843
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
844
.__metaclass__):
845
"""Applied to an empty subclass of a D-Bus object, this metaclass
846
will add additional D-Bus attributes matching a certain pattern.
1612
847
"""
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):
848
def __new__(mcs, name, bases, attr):
849
# Go through all the base classes which could have D-Bus
850
# methods, signals, or properties in them
851
for base in (b for b in bases
852
if issubclass(b, dbus.service.Object)):
853
# Go though all attributes of the base class
854
for attrname, attribute in inspect.getmembers(base):
1621
855
# Ignore non-D-Bus attributes, and D-Bus attributes
1622
856
# with the wrong interface name
1623
857
if (not hasattr(attribute, "_dbus_interface")
1624
or not attribute._dbus_interface.startswith(
1625
orig_interface_name)):
858
or not attribute._dbus_interface
859
.startswith("se.recompile.Mandos")):
1626
860
continue
1627
861
# Create an alternate D-Bus interface name based on
1628
862
# the current name
1629
alt_interface = attribute._dbus_interface.replace(
1630
orig_interface_name, alt_interface_name)
1631
interface_names.add(alt_interface)
863
alt_interface = (attribute._dbus_interface
864
.replace("se.recompile.Mandos",
865
"se.bsnet.fukt.Mandos"))
1632
866
# Is this a D-Bus signal?
1633
867
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(
868
# Extract the original non-method function by
869
# black magic
870
nonmethod_func = (dict(
1638
871
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)
872
attribute.__closure__))["func"]
873
.cell_contents)
1646
874
# Create a new, but exactly alike, function
1647
875
# object, and decorate it to be a new D-Bus signal
1648
876
# 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
877
new_function = (dbus.service.signal
878
(alt_interface,
879
attribute._dbus_signature)
880
(types.FunctionType(
881
nonmethod_func.func_code,
882
nonmethod_func.func_globals,
883
nonmethod_func.func_name,
884
nonmethod_func.func_defaults,
885
nonmethod_func.func_closure)))
1660
886
# 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
887
# old and new functions, so both the old and new
888
# signals gets sent when the function is called
1664
889
def fixscope(func1, func2):
1665
890
"""This function is a scope container to pass
1666
891
func1 and func2 to the "call_both" function
1667
892
outside of its arguments"""
1668
1669
@functools.wraps(func2)
1670
893
def call_both(*args, **kwargs):
1671
894
"""This function will emit two D-Bus
1672
895
signals by calling func1 and func2"""
1673
896
func1(*args, **kwargs)
1674
897
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
898
return call_both
1682
899
# Create the "call_both" function and add it to
1683
900
# the class
1684
attr[attrname] = fixscope(attribute, new_function)
901
attr[attrname] = fixscope(attribute,
902
new_function)
1685
903
# Is this a D-Bus method?
1686
904
elif getattr(attribute, "_dbus_is_method", False):
1687
905
# Create a new, but exactly alike, function
1688
906
# object. Decorate it to be a new D-Bus method
1689
907
# with the alternate D-Bus interface name. Add it
1690
908
# 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
909
attr[attrname] = (dbus.service.method
910
(alt_interface,
911
attribute._dbus_in_signature,
912
attribute._dbus_out_signature)
913
(types.FunctionType
914
(attribute.func_code,
915
attribute.func_globals,
916
attribute.func_name,
917
attribute.func_defaults,
918
attribute.func_closure)))
1703
919
# Is this a D-Bus property?
1704
920
elif getattr(attribute, "_dbus_is_property", False):
1705
921
# Create a new, but exactly alike, function
1706
922
# object, and decorate it to be a new D-Bus
1707
923
# property with the alternate D-Bus interface
1708
924
# 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"})
925
attr[attrname] = (dbus_service_property
926
(alt_interface,
927
attribute._dbus_signature,
928
attribute._dbus_access,
929
attribute
930
._dbus_get_args_options
931
["byte_arrays"])
932
(types.FunctionType
933
(attribute.func_code,
934
attribute.func_globals,
935
attribute.func_name,
936
attribute.func_defaults,
937
attribute.func_closure)))
938
return type.__new__(mcs, name, bases, attr)
939
1761
940
class ClientDBus(Client, DBusObjectWithProperties):
1762
941
"""A Client class using D-Bus
1763
942
1764
943
Attributes:
1765
944
dbus_object_path: dbus.ObjectPath
1766
945
bus: dbus.SystemBus()
1767
946
"""
1768
947
1769
948
runtime_expansions = (Client.runtime_expansions
1770
+ ("dbus_object_path", ))
1771
1772
_interface = "se.recompile.Mandos.Client"
1773
949
+ ("dbus_object_path",))
950
1774
951
# dbus.service.Object doesn't use super(), so we can't either.
1775
1776
def __init__(self, bus=None, *args, **kwargs):
952
953
def __init__(self, bus = None, *args, **kwargs):
1777
954
self.bus = bus
955
self._approvals_pending = 0
1778
956
Client.__init__(self, *args, **kwargs)
957
self.add_to_dbus()
958
959
def add_to_dbus(self):
1779
960
# Only now, when this client is initialized, can it show up on
1780
961
# the D-Bus
1781
client_object_name = str(self.name).translate(
962
client_object_name = unicode(self.name).translate(
1782
963
{ord("."): ord("_"),
1783
964
ord("-"): ord("_")})
1784
self.dbus_object_path = dbus.ObjectPath(
1785
"/clients/" + client_object_name)
965
self.dbus_object_path = (dbus.ObjectPath
966
("/clients/" + client_object_name))
1786
967
DBusObjectWithProperties.__init__(self, self.bus,
1787
968
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):
969
970
def notifychangeproperty(transform_func,
971
dbus_name, type_func=lambda x: x,
972
variant_level=1):
1794
973
""" Modify a variable so that it's a property which announces
1795
974
its changes to DBus.
1796
975
1801
980
to the D-Bus. Default: no transform
1802
981
variant_level: D-Bus variant level. Default: 1
1803
982
"""
1804
attrname = "_{}".format(dbus_name)
1805
983
attrname = "_{0}".format(dbus_name)
1806
984
def setter(self, value):
1807
985
if hasattr(self, "dbus_object_path"):
1808
986
if (not hasattr(self, attrname) or
1809
987
type_func(getattr(self, attrname, None))
1810
988
!= 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())
989
dbus_value = transform_func(type_func(value),
990
variant_level
991
=variant_level)
992
self.PropertyChanged(dbus.String(dbus_name),
993
dbus_value)
1826
994
setattr(self, attrname, value)
1827
995
1828
996
return property(lambda self: getattr(self, attrname), setter)
1829
997
998
1830
999
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1831
1000
approvals_pending = notifychangeproperty(dbus.Boolean,
1832
1001
"ApprovalPending",
1833
type_func=bool)
1002
type_func = bool)
1834
1003
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1835
1004
last_enabled = notifychangeproperty(datetime_to_dbus,
1836
1005
"LastEnabled")
1837
checker = notifychangeproperty(
1838
dbus.Boolean, "CheckerRunning",
1839
type_func=lambda checker: checker is not None)
1006
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1007
type_func = lambda checker:
1008
checker is not None)
1840
1009
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1841
1010
"LastCheckedOK")
1842
last_checker_status = notifychangeproperty(dbus.Int16,
1843
"LastCheckerStatus")
1844
1011
last_approval_request = notifychangeproperty(
1845
1012
datetime_to_dbus, "LastApprovalRequest")
1846
1013
approved_by_default = notifychangeproperty(dbus.Boolean,
1847
1014
"ApprovedByDefault")
1848
approval_delay = notifychangeproperty(
1849
dbus.UInt64, "ApprovalDelay",
1850
type_func=lambda td: td.total_seconds() * 1000)
1015
approval_delay = notifychangeproperty(dbus.UInt16,
1016
"ApprovalDelay",
1017
type_func =
1018
_timedelta_to_milliseconds)
1851
1019
approval_duration = notifychangeproperty(
1852
dbus.UInt64, "ApprovalDuration",
1853
type_func=lambda td: td.total_seconds() * 1000)
1020
dbus.UInt16, "ApprovalDuration",
1021
type_func = _timedelta_to_milliseconds)
1854
1022
host = notifychangeproperty(dbus.String, "Host")
1855
timeout = notifychangeproperty(
1856
dbus.UInt64, "Timeout",
1857
type_func=lambda td: td.total_seconds() * 1000)
1023
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
1024
type_func =
1025
_timedelta_to_milliseconds)
1858
1026
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)
1027
dbus.UInt16, "ExtendedTimeout",
1028
type_func = _timedelta_to_milliseconds)
1029
interval = notifychangeproperty(dbus.UInt16,
1030
"Interval",
1031
type_func =
1032
_timedelta_to_milliseconds)
1864
1033
checker_command = notifychangeproperty(dbus.String, "Checker")
1865
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1866
invalidate_only=True)
1867
1034
1868
1035
del notifychangeproperty
1869
1036
1870
1037
def __del__(self, *args, **kwargs):
1871
1038
try:
1872
1039
self.remove_from_connection()
1875
1042
if hasattr(DBusObjectWithProperties, "__del__"):
1876
1043
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1877
1044
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:
1045
1046
def checker_callback(self, pid, condition, command,
1047
*args, **kwargs):
1048
self.checker_callback_tag = None
1049
self.checker = None
1050
if os.WIFEXITED(condition):
1051
exitstatus = os.WEXITSTATUS(condition)
1886
1052
# Emit D-Bus signal
1887
1053
self.CheckerCompleted(dbus.Int16(exitstatus),
1888
# This is specific to GNU libC
1889
dbus.Int64(exitstatus << 8),
1054
dbus.Int64(condition),
1890
1055
dbus.String(command))
1891
1056
else:
1892
1057
# Emit D-Bus signal
1893
1058
self.CheckerCompleted(dbus.Int16(-1),
1894
dbus.Int64(
1895
# This is specific to GNU libC
1896
(exitstatus << 8)
1897
| self.last_checker_signal),
1059
dbus.Int64(condition),
1898
1060
dbus.String(command))
1899
return ret
1900
1061
1062
return Client.checker_callback(self, pid, condition, command,
1063
*args, **kwargs)
1064
1901
1065
def start_checker(self, *args, **kwargs):
1902
old_checker_pid = getattr(self.checker, "pid", None)
1066
old_checker = self.checker
1067
if self.checker is not None:
1068
old_checker_pid = self.checker.pid
1069
else:
1070
old_checker_pid = None
1903
1071
r = Client.start_checker(self, *args, **kwargs)
1904
1072
# Only if new checker process was started
1905
1073
if (self.checker is not None
1907
1075
# Emit D-Bus signal
1908
1076
self.CheckerStarted(self.current_checker_command)
1909
1077
return r
1910
1078
1911
1079
def _reset_approved(self):
1912
self.approved = None
1080
self._approved = None
1913
1081
return False
1914
1082
1915
1083
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
1084
self.send_changedstate()
1920
1921
# D-Bus methods, signals & properties
1922
1923
# Interfaces
1924
1925
# Signals
1926
1085
self._approved = value
1086
gobject.timeout_add(_timedelta_to_milliseconds
1087
(self.approval_duration),
1088
self._reset_approved)
1089
1090
1091
## D-Bus methods, signals & properties
1092
_interface = "se.recompile.Mandos.Client"
1093
1094
## Signals
1095
1927
1096
# CheckerCompleted - signal
1928
1097
@dbus.service.signal(_interface, signature="nxs")
1929
1098
def CheckerCompleted(self, exitcode, waitstatus, command):
1930
1099
"D-Bus signal"
1931
1100
pass
1932
1101
1933
1102
# CheckerStarted - signal
1934
1103
@dbus.service.signal(_interface, signature="s")
1935
1104
def CheckerStarted(self, command):
1936
1105
"D-Bus signal"
1937
1106
pass
1938
1107
1939
1108
# PropertyChanged - signal
1940
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1941
1109
@dbus.service.signal(_interface, signature="sv")
1942
1110
def PropertyChanged(self, property, value):
1943
1111
"D-Bus signal"
1944
1112
pass
1945
1113
1946
1114
# GotSecret - signal
1947
1115
@dbus.service.signal(_interface)
1948
1116
def GotSecret(self):
1951
1119
server to mandos-client
1952
1120
"""
1953
1121
pass
1954
1122
1955
1123
# Rejected - signal
1956
1124
@dbus.service.signal(_interface, signature="s")
1957
1125
def Rejected(self, reason):
1958
1126
"D-Bus signal"
1959
1127
pass
1960
1128
1961
1129
# NeedApproval - signal
1962
1130
@dbus.service.signal(_interface, signature="tb")
1963
1131
def NeedApproval(self, timeout, default):
1964
1132
"D-Bus signal"
1965
1133
return self.need_approval()
1966
1967
# Methods
1968
1134
1135
## Methods
1136
1969
1137
# Approve - method
1970
1138
@dbus.service.method(_interface, in_signature="b")
1971
1139
def Approve(self, value):
1972
1140
self.approve(value)
1973
1141
1974
1142
# CheckedOK - method
1975
1143
@dbus.service.method(_interface)
1976
1144
def CheckedOK(self):
1977
1145
self.checked_ok()
1978
1146
1979
1147
# Enable - method
1980
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1981
1148
@dbus.service.method(_interface)
1982
1149
def Enable(self):
1983
1150
"D-Bus method"
1984
1151
self.enable()
1985
1152
1986
1153
# StartChecker - method
1987
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1988
1154
@dbus.service.method(_interface)
1989
1155
def StartChecker(self):
1990
1156
"D-Bus method"
1991
1157
self.start_checker()
1992
1158
1993
1159
# Disable - method
1994
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1995
1160
@dbus.service.method(_interface)
1996
1161
def Disable(self):
1997
1162
"D-Bus method"
1998
1163
self.disable()
1999
1164
2000
1165
# StopChecker - method
2001
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2002
1166
@dbus.service.method(_interface)
2003
1167
def StopChecker(self):
2004
1168
self.stop_checker()
2005
2006
# Properties
2007
1169
1170
## Properties
1171
2008
1172
# ApprovalPending - property
2009
1173
@dbus_service_property(_interface, signature="b", access="read")
2010
1174
def ApprovalPending_dbus_property(self):
2011
1175
return dbus.Boolean(bool(self.approvals_pending))
2012
1176
2013
1177
# ApprovedByDefault - property
2014
@dbus_service_property(_interface,
2015
signature="b",
1178
@dbus_service_property(_interface, signature="b",
2016
1179
access="readwrite")
2017
1180
def ApprovedByDefault_dbus_property(self, value=None):
2018
1181
if value is None: # get
2019
1182
return dbus.Boolean(self.approved_by_default)
2020
1183
self.approved_by_default = bool(value)
2021
1184
2022
1185
# ApprovalDelay - property
2023
@dbus_service_property(_interface,
2024
signature="t",
1186
@dbus_service_property(_interface, signature="t",
2025
1187
access="readwrite")
2026
1188
def ApprovalDelay_dbus_property(self, value=None):
2027
1189
if value is None: # get
2028
return dbus.UInt64(self.approval_delay.total_seconds()
2029
* 1000)
1190
return dbus.UInt64(self.approval_delay_milliseconds())
2030
1191
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2031
1192
2032
1193
# ApprovalDuration - property
2033
@dbus_service_property(_interface,
2034
signature="t",
1194
@dbus_service_property(_interface, signature="t",
2035
1195
access="readwrite")
2036
1196
def ApprovalDuration_dbus_property(self, value=None):
2037
1197
if value is None: # get
2038
return dbus.UInt64(self.approval_duration.total_seconds()
2039
* 1000)
1198
return dbus.UInt64(_timedelta_to_milliseconds(
1199
self.approval_duration))
2040
1200
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2041
1201
2042
1202
# Name - property
2043
@dbus_annotations(
2044
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2045
1203
@dbus_service_property(_interface, signature="s", access="read")
2046
1204
def Name_dbus_property(self):
2047
1205
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
1206
2056
1207
# Fingerprint - property
2057
@dbus_annotations(
2058
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2059
1208
@dbus_service_property(_interface, signature="s", access="read")
2060
1209
def Fingerprint_dbus_property(self):
2061
1210
return dbus.String(self.fingerprint)
2062
1211
2063
1212
# Host - property
2064
@dbus_service_property(_interface,
2065
signature="s",
1213
@dbus_service_property(_interface, signature="s",
2066
1214
access="readwrite")
2067
1215
def Host_dbus_property(self, value=None):
2068
1216
if value is None: # get
2069
1217
return dbus.String(self.host)
2070
self.host = str(value)
2071
1218
self.host = value
1219
2072
1220
# Created - property
2073
@dbus_annotations(
2074
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2075
1221
@dbus_service_property(_interface, signature="s", access="read")
2076
1222
def Created_dbus_property(self):
2077
return datetime_to_dbus(self.created)
2078
1223
return dbus.String(datetime_to_dbus(self.created))
1224
2079
1225
# LastEnabled - property
2080
1226
@dbus_service_property(_interface, signature="s", access="read")
2081
1227
def LastEnabled_dbus_property(self):
2082
1228
return datetime_to_dbus(self.last_enabled)
2083
1229
2084
1230
# Enabled - property
2085
@dbus_service_property(_interface,
2086
signature="b",
1231
@dbus_service_property(_interface, signature="b",
2087
1232
access="readwrite")
2088
1233
def Enabled_dbus_property(self, value=None):
2089
1234
if value is None: # get
2092
1237
self.enable()
2093
1238
else:
2094
1239
self.disable()
2095
1240
2096
1241
# LastCheckedOK - property
2097
@dbus_service_property(_interface,
2098
signature="s",
1242
@dbus_service_property(_interface, signature="s",
2099
1243
access="readwrite")
2100
1244
def LastCheckedOK_dbus_property(self, value=None):
2101
1245
if value is not None:
2102
1246
self.checked_ok()
2103
1247
return
2104
1248
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
1249
2111
1250
# Expires - property
2112
1251
@dbus_service_property(_interface, signature="s", access="read")
2113
1252
def Expires_dbus_property(self):
2114
1253
return datetime_to_dbus(self.expires)
2115
1254
2116
1255
# LastApprovalRequest - property
2117
1256
@dbus_service_property(_interface, signature="s", access="read")
2118
1257
def LastApprovalRequest_dbus_property(self):
2119
1258
return datetime_to_dbus(self.last_approval_request)
2120
1259
2121
1260
# Timeout - property
2122
@dbus_service_property(_interface,
2123
signature="t",
1261
@dbus_service_property(_interface, signature="t",
2124
1262
access="readwrite")
2125
1263
def Timeout_dbus_property(self, value=None):
2126
1264
if value is None: # get
2127
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2128
old_timeout = self.timeout
1265
return dbus.UInt64(self.timeout_milliseconds())
2129
1266
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
1267
if getattr(self, "disable_initiator_tag", None) is None:
1268
return
1269
# Reschedule timeout
1270
gobject.source_remove(self.disable_initiator_tag)
1271
self.disable_initiator_tag = None
1272
self.expires = None
1273
time_to_die = _timedelta_to_milliseconds((self
1274
.last_checked_ok
1275
+ self.timeout)
1276
- datetime.datetime
1277
.utcnow())
1278
if time_to_die <= 0:
1279
# The timeout has passed
1280
self.disable()
1281
else:
1282
self.expires = (datetime.datetime.utcnow()
1283
+ datetime.timedelta(milliseconds =
1284
time_to_die))
1285
self.disable_initiator_tag = (gobject.timeout_add
1286
(time_to_die, self.disable))
1287
2146
1288
# ExtendedTimeout - property
2147
@dbus_service_property(_interface,
2148
signature="t",
1289
@dbus_service_property(_interface, signature="t",
2149
1290
access="readwrite")
2150
1291
def ExtendedTimeout_dbus_property(self, value=None):
2151
1292
if value is None: # get
2152
return dbus.UInt64(self.extended_timeout.total_seconds()
2153
* 1000)
1293
return dbus.UInt64(self.extended_timeout_milliseconds())
2154
1294
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2155
1295
2156
1296
# Interval - property
2157
@dbus_service_property(_interface,
2158
signature="t",
1297
@dbus_service_property(_interface, signature="t",
2159
1298
access="readwrite")
2160
1299
def Interval_dbus_property(self, value=None):
2161
1300
if value is None: # get
2162
return dbus.UInt64(self.interval.total_seconds() * 1000)
1301
return dbus.UInt64(self.interval_milliseconds())
2163
1302
self.interval = datetime.timedelta(0, 0, 0, value)
2164
1303
if getattr(self, "checker_initiator_tag", None) is None:
2165
1304
return
2166
if self.enabled:
2167
# 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
1305
# Reschedule checker run
1306
gobject.source_remove(self.checker_initiator_tag)
1307
self.checker_initiator_tag = (gobject.timeout_add
1308
(value, self.start_checker))
1309
self.start_checker() # Start one now, too
1310
2173
1311
# Checker - property
2174
@dbus_service_property(_interface,
2175
signature="s",
1312
@dbus_service_property(_interface, signature="s",
2176
1313
access="readwrite")
2177
1314
def Checker_dbus_property(self, value=None):
2178
1315
if value is None: # get
2179
1316
return dbus.String(self.checker_command)
2180
self.checker_command = str(value)
2181
1317
self.checker_command = value
1318
2182
1319
# CheckerRunning - property
2183
@dbus_service_property(_interface,
2184
signature="b",
1320
@dbus_service_property(_interface, signature="b",
2185
1321
access="readwrite")
2186
1322
def CheckerRunning_dbus_property(self, value=None):
2187
1323
if value is None: # get
2190
1326
self.start_checker()
2191
1327
else:
2192
1328
self.stop_checker()
2193
1329
2194
1330
# ObjectPath - property
2195
@dbus_annotations(
2196
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2197
"org.freedesktop.DBus.Deprecated": "true"})
2198
1331
@dbus_service_property(_interface, signature="o", access="read")
2199
1332
def ObjectPath_dbus_property(self):
2200
return self.dbus_object_path # is already a dbus.ObjectPath
2201
1333
return self.dbus_object_path # is already a dbus.ObjectPath
1334
2202
1335
# 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)
1336
@dbus_service_property(_interface, signature="ay",
1337
access="write", byte_arrays=True)
2210
1338
def Secret_dbus_property(self, value):
2211
self.secret = bytes(value)
2212
1339
self.secret = str(value)
1340
2213
1341
del _interface
2214
1342
2215
1343
2216
1344
class ProxyClient(object):
2217
def __init__(self, child_pipe, key_id, fpr, address):
1345
def __init__(self, child_pipe, fpr, address):
2218
1346
self._pipe = child_pipe
2219
self._pipe.send(('init', key_id, fpr, address))
1347
self._pipe.send(('init', fpr, address))
2220
1348
if not self._pipe.recv():
2221
raise KeyError(key_id or fpr)
2222
1349
raise KeyError()
1350
2223
1351
def __getattribute__(self, name):
2224
if name == '_pipe':
1352
if(name == '_pipe'):
2225
1353
return super(ProxyClient, self).__getattribute__(name)
2226
1354
self._pipe.send(('getattr', name))
2227
1355
data = self._pipe.recv()
2228
1356
if data[0] == 'data':
2229
1357
return data[1]
2230
1358
if data[0] == 'function':
2231
2232
1359
def func(*args, **kwargs):
2233
1360
self._pipe.send(('funcall', name, args, kwargs))
2234
1361
return self._pipe.recv()[1]
2235
2236
1362
return func
2237
1363
2238
1364
def __setattr__(self, name, value):
2239
if name == '_pipe':
1365
if(name == '_pipe'):
2240
1366
return super(ProxyClient, self).__setattr__(name, value)
2241
1367
self._pipe.send(('setattr', name, value))
2242
1368
1369
class ClientDBusTransitional(ClientDBus):
1370
__metaclass__ = AlternateDBusNamesMetaclass
2243
1371
2244
1372
class ClientHandler(socketserver.BaseRequestHandler, object):
2245
1373
"""A class to handle client connections.
2246
1374
2247
1375
Instantiated once for each connection to handle it.
2248
1376
Note: This will run in its own forked process."""
2249
1377
2250
1378
def handle(self):
2251
1379
with contextlib.closing(self.server.child_pipe) as child_pipe:
2252
1380
logger.info("TCP connection from: %s",
2253
str(self.client_address))
1381
unicode(self.client_address))
2254
1382
logger.debug("Pipe FD: %d",
2255
1383
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"))
1384
1385
session = (gnutls.connection
1386
.ClientSession(self.request,
1387
gnutls.connection
1388
.X509Credentials()))
1389
1390
# Note: gnutls.connection.X509Credentials is really a
1391
# generic GnuTLS certificate credentials object so long as
1392
# no X.509 keys are added to it. Therefore, we can use it
1393
# here despite using OpenPGP certificates.
1394
1395
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1396
# "+AES-256-CBC", "+SHA1",
1397
# "+COMP-NULL", "+CTYPE-OPENPGP",
1398
# "+DHE-DSS"))
2263
1399
# Use a fallback default, since this MUST be set.
2264
1400
priority = self.server.gnutls_priority
2265
1401
if priority is None:
2266
1402
priority = "NORMAL"
2267
gnutls.priority_set_direct(session._c_object,
2268
priority.encode("utf-8"),
2269
None)
2270
1403
(gnutls.library.functions
1404
.gnutls_priority_set_direct(session._c_object,
1405
priority, None))
1406
2271
1407
# Start communication using the Mandos protocol
2272
1408
# Get protocol number
2273
1409
line = self.request.makefile().readline()
2274
1410
logger.debug("Protocol version: %r", line)
2275
1411
try:
2276
1412
if int(line.strip().split()[0]) > 1:
2277
raise RuntimeError(line)
1413
raise RuntimeError
2278
1414
except (ValueError, IndexError, RuntimeError) as error:
2279
1415
logger.error("Unknown protocol version: %s", error)
2280
1416
return
2281
1417
2282
1418
# Start GnuTLS connection
2283
1419
try:
2284
1420
session.handshake()
2285
except gnutls.Error as error:
1421
except gnutls.errors.GNUTLSError as error:
2286
1422
logger.warning("Handshake failed: %s", error)
2287
1423
# Do not run session.bye() here: the session is not
2288
1424
# established. Just abandon the request.
2289
1425
return
2290
1426
logger.debug("Handshake succeeded")
2291
1427
2292
1428
approval_required = False
2293
1429
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,
1430
try:
1431
fpr = self.fingerprint(self.peer_certificate
1432
(session))
1433
except (TypeError,
1434
gnutls.errors.GNUTLSError) as error:
1435
logger.warning("Bad certificate: %s", error)
1436
return
1437
logger.debug("Fingerprint: %s", fpr)
1438
1439
try:
1440
client = ProxyClient(child_pipe, fpr,
2316
1441
self.client_address)
2317
1442
except KeyError:
2318
1443
return
2319
1444
2320
1445
if client.approval_delay:
2321
1446
delay = client.approval_delay
2322
1447
client.approvals_pending += 1
2323
1448
approval_required = True
2324
1449
2325
1450
while True:
2326
1451
if not client.enabled:
2327
1452
logger.info("Client %s is disabled",
2328
client.name)
1453
client.name)
2329
1454
if self.server.use_dbus:
2330
1455
# Emit D-Bus signal
2331
1456
client.Rejected("Disabled")
2332
1457
return
2333
2334
if client.approved or not client.approval_delay:
2335
# We are approved or approval is disabled
1458
1459
if client._approved or not client.approval_delay:
1460
#We are approved or approval is disabled
2336
1461
break
2337
elif client.approved is None:
1462
elif client._approved is None:
2338
1463
logger.info("Client %s needs approval",
2339
1464
client.name)
2340
1465
if self.server.use_dbus:
2341
1466
# Emit D-Bus signal
2342
1467
client.NeedApproval(
2343
client.approval_delay.total_seconds()
2344
* 1000, client.approved_by_default)
1468
client.approval_delay_milliseconds(),
1469
client.approved_by_default)
2345
1470
else:
2346
1471
logger.warning("Client %s was not approved",
2347
1472
client.name)
2349
1474
# Emit D-Bus signal
2350
1475
client.Rejected("Denied")
2351
1476
return
2352
2353
# wait until timeout or approved
1477
1478
#wait until timeout or approved
2354
1479
time = datetime.datetime.now()
2355
1480
client.changedstate.acquire()
2356
client.changedstate.wait(delay.total_seconds())
1481
(client.changedstate.wait
1482
(float(client._timedelta_to_milliseconds(delay)
1483
/ 1000)))
2357
1484
client.changedstate.release()
2358
1485
time2 = datetime.datetime.now()
2359
1486
if (time2 - time) >= delay:
2369
1496
break
2370
1497
else:
2371
1498
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
1499
1500
sent_size = 0
1501
while sent_size < len(client.secret):
1502
try:
1503
sent = session.send(client.secret[sent_size:])
1504
except gnutls.errors.GNUTLSError as error:
1505
logger.warning("gnutls send failed")
1506
return
1507
logger.debug("Sent: %d, remaining: %d",
1508
sent, len(client.secret)
1509
- (sent_size + sent))
1510
sent_size += sent
1511
2380
1512
logger.info("Sending secret to %s", client.name)
2381
1513
# bump the timeout using extended_timeout
2382
client.bump_timeout(client.extended_timeout)
1514
client.checked_ok(client.extended_timeout)
2383
1515
if self.server.use_dbus:
2384
1516
# Emit D-Bus signal
2385
1517
client.GotSecret()
2386
1518
2387
1519
finally:
2388
1520
if approval_required:
2389
1521
client.approvals_pending -= 1
2390
1522
try:
2391
1523
session.bye()
2392
except gnutls.Error as error:
2393
logger.warning("GnuTLS bye failed",
2394
exc_info=error)
2395
1524
except gnutls.errors.GNUTLSError as error:
1525
logger.warning("GnuTLS bye failed")
1526
2396
1527
@staticmethod
2397
1528
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""
1529
"Return the peer's OpenPGP certificate as a bytestring"
1530
# If not an OpenPGP certificate...
1531
if (gnutls.library.functions
1532
.gnutls_certificate_type_get(session._c_object)
1533
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1534
# ...do the normal thing
1535
return session.peer_certificate
2414
1536
list_size = ctypes.c_uint(1)
2415
cert_list = (gnutls.certificate_get_peers
1537
cert_list = (gnutls.library.functions
1538
.gnutls_certificate_get_peers
2416
1539
(session._c_object, ctypes.byref(list_size)))
2417
1540
if not bool(cert_list) and list_size.value != 0:
2418
raise gnutls.Error("error getting peer certificate")
1541
raise gnutls.errors.GNUTLSError("error getting peer"
1542
" certificate")
2419
1543
if list_size.value == 0:
2420
1544
return None
2421
1545
cert = cert_list[0]
2422
1546
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
1547
2458
1548
@staticmethod
2459
1549
def fingerprint(openpgp):
2460
1550
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2461
1551
# 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)))
1552
datum = (gnutls.library.types
1553
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1554
ctypes.POINTER
1555
(ctypes.c_ubyte)),
1556
ctypes.c_uint(len(openpgp))))
2466
1557
# New empty GnuTLS certificate
2467
crt = gnutls.openpgp_crt_t()
2468
gnutls.openpgp_crt_init(ctypes.byref(crt))
1558
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1559
(gnutls.library.functions
1560
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2469
1561
# Import the OpenPGP public key into the certificate
2470
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2471
gnutls.OPENPGP_FMT_RAW)
1562
(gnutls.library.functions
1563
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1564
gnutls.library.constants
1565
.GNUTLS_OPENPGP_FMT_RAW))
2472
1566
# Verify the self signature in the key
2473
1567
crtverify = ctypes.c_uint()
2474
gnutls.openpgp_crt_verify_self(crt, 0,
2475
ctypes.byref(crtverify))
1568
(gnutls.library.functions
1569
.gnutls_openpgp_crt_verify_self(crt, 0,
1570
ctypes.byref(crtverify)))
2476
1571
if crtverify.value != 0:
2477
gnutls.openpgp_crt_deinit(crt)
2478
raise gnutls.CertificateSecurityError(code
2479
=crtverify.value)
1572
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1573
raise (gnutls.errors.CertificateSecurityError
1574
("Verify failed"))
2480
1575
# New buffer for the fingerprint
2481
1576
buf = ctypes.create_string_buffer(20)
2482
1577
buf_len = ctypes.c_size_t()
2483
1578
# Get the fingerprint from the certificate into the buffer
2484
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2485
ctypes.byref(buf_len))
1579
(gnutls.library.functions
1580
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1581
ctypes.byref(buf_len)))
2486
1582
# Deinit the certificate
2487
gnutls.openpgp_crt_deinit(crt)
1583
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2488
1584
# Convert the buffer to a Python bytestring
2489
1585
fpr = ctypes.string_at(buf, buf_len.value)
2490
1586
# Convert the bytestring to hexadecimal notation
2491
hex_fpr = binascii.hexlify(fpr).upper()
1587
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2492
1588
return hex_fpr
2493
1589
2494
1590
2495
1591
class MultiprocessingMixIn(object):
2496
1592
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2497
2498
1593
def sub_process_main(self, request, address):
2499
1594
try:
2500
1595
self.finish_request(request, address)
2501
except Exception:
1596
except:
2502
1597
self.handle_error(request, address)
2503
1598
self.close_request(request)
2504
1599
2505
1600
def process_request(self, request, address):
2506
1601
"""Start a new process to process the request."""
2507
proc = multiprocessing.Process(target=self.sub_process_main,
2508
args=(request, address))
1602
proc = multiprocessing.Process(target = self.sub_process_main,
1603
args = (request,
1604
address))
2509
1605
proc.start()
2510
1606
return proc
2511
1607
2512
1608
2513
1609
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2514
1610
""" adds a pipe to the MixIn """
2515
2516
1611
def process_request(self, request, client_address):
2517
1612
"""Overrides and wraps the original process_request().
2518
1613
2519
1614
This function creates a new pipe in self.pipe
2520
1615
"""
2521
1616
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2522
1617
2523
1618
proc = MultiprocessingMixIn.process_request(self, request,
2524
1619
client_address)
2525
1620
self.child_pipe.close()
2526
1621
self.add_pipe(parent_pipe, proc)
2527
1622
2528
1623
def add_pipe(self, parent_pipe, proc):
2529
1624
"""Dummy function; override as necessary"""
2530
raise NotImplementedError()
1625
raise NotImplementedError
2531
1626
2532
1627
2533
1628
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2534
1629
socketserver.TCPServer, object):
2535
1630
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2536
1631
2537
1632
Attributes:
2538
1633
enabled: Boolean; whether this server is activated yet
2539
1634
interface: None or a network interface name (string)
2540
1635
use_ipv6: Boolean; to use IPv6 or not
2541
1636
"""
2542
2543
1637
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
"""
1638
interface=None, use_ipv6=True):
2550
1639
self.interface = interface
2551
1640
if use_ipv6:
2552
1641
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
1642
socketserver.TCPServer.__init__(self, server_address,
2581
1643
RequestHandlerClass)
2582
2583
1644
def server_bind(self):
2584
1645
"""This overrides the normal server_bind() function
2585
1646
to bind to an interface if one was specified, and also NOT to
2586
1647
bind to an address or port if they were not specified."""
2587
global SO_BINDTODEVICE
2588
1648
if self.interface is not None:
2589
1649
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
1650
logger.error("SO_BINDTODEVICE does not exist;"
1651
" cannot bind to interface %s",
1652
self.interface)
1653
else:
1654
try:
1655
self.socket.setsockopt(socket.SOL_SOCKET,
1656
SO_BINDTODEVICE,
1657
str(self.interface
1658
+ '\0'))
1659
except socket.error as error:
1660
if error[0] == errno.EPERM:
1661
logger.error("No permission to"
1662
" bind to interface %s",
1663
self.interface)
1664
elif error[0] == errno.ENOPROTOOPT:
1665
logger.error("SO_BINDTODEVICE not available;"
1666
" cannot bind to interface %s",
1667
self.interface)
1668
else:
1669
raise
2611
1670
# Only bind(2) the socket if we really need to.
2612
1671
if self.server_address[0] or self.server_address[1]:
2613
if self.server_address[1]:
2614
self.allow_reuse_address = True
2615
1672
if not self.server_address[0]:
2616
1673
if self.address_family == socket.AF_INET6:
2617
any_address = "::" # in6addr_any
1674
any_address = "::" # in6addr_any
2618
1675
else:
2619
any_address = "0.0.0.0" # INADDR_ANY
1676
any_address = socket.INADDR_ANY
2620
1677
self.server_address = (any_address,
2621
1678
self.server_address[1])
2622
1679
elif not self.server_address[1]:
2623
self.server_address = (self.server_address[0], 0)
1680
self.server_address = (self.server_address[0],
1681
0)
2624
1682
# if self.interface:
2625
1683
# self.server_address = (self.server_address[0],
2626
1684
# 0, # port
2632
1690
2633
1691
class MandosServer(IPv6_TCPServer):
2634
1692
"""Mandos server.
2635
1693
2636
1694
Attributes:
2637
1695
clients: set of Client objects
2638
1696
gnutls_priority GnuTLS priority string
2639
1697
use_dbus: Boolean; to emit D-Bus signals or not
2640
2641
Assumes a GLib.MainLoop event loop.
1698
1699
Assumes a gobject.MainLoop event loop.
2642
1700
"""
2643
2644
1701
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):
1702
interface=None, use_ipv6=True, clients=None,
1703
gnutls_priority=None, use_dbus=True):
2651
1704
self.enabled = False
2652
1705
self.clients = clients
2653
1706
if self.clients is None:
2656
1709
self.gnutls_priority = gnutls_priority
2657
1710
IPv6_TCPServer.__init__(self, server_address,
2658
1711
RequestHandlerClass,
2659
interface=interface,
2660
use_ipv6=use_ipv6,
2661
socketfd=socketfd)
2662
1712
interface = interface,
1713
use_ipv6 = use_ipv6)
2663
1714
def server_activate(self):
2664
1715
if self.enabled:
2665
1716
return socketserver.TCPServer.server_activate(self)
2666
1717
2667
1718
def enable(self):
2668
1719
self.enabled = True
2669
1720
2670
1721
def add_pipe(self, parent_pipe, proc):
2671
1722
# 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):
1723
gobject.io_add_watch(parent_pipe.fileno(),
1724
gobject.IO_IN | gobject.IO_HUP,
1725
functools.partial(self.handle_ipc,
1726
parent_pipe =
1727
parent_pipe,
1728
proc = proc))
1729
1730
def handle_ipc(self, source, condition, parent_pipe=None,
1731
proc = None, client_object=None):
1732
condition_names = {
1733
gobject.IO_IN: "IN", # There is data to read.
1734
gobject.IO_OUT: "OUT", # Data can be written (without
1735
# blocking).
1736
gobject.IO_PRI: "PRI", # There is urgent data to read.
1737
gobject.IO_ERR: "ERR", # Error condition.
1738
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1739
# broken, usually for pipes and
1740
# sockets).
1741
}
1742
conditions_string = ' | '.join(name
1743
for cond, name in
1744
condition_names.iteritems()
1745
if cond & condition)
2683
1746
# error, or the other end of multiprocessing.Pipe has closed
2684
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1747
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2685
1748
# Wait for other process to exit
2686
1749
proc.join()
2687
1750
return False
2688
1751
2689
1752
# Read a request from the child
2690
1753
request = parent_pipe.recv()
2691
1754
command = request[0]
2692
1755
2693
1756
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:
1757
fpr = request[1]
1758
address = request[2]
1759
1760
for c in self.clients.itervalues():
1761
if c.fingerprint == fpr:
2705
1762
client = c
2706
1763
break
2707
1764
else:
2708
logger.info("Client not found for key ID: %s, address"
2709
": %s", key_id or fpr, address)
1765
logger.info("Client not found for fingerprint: %s, ad"
1766
"dress: %s", fpr, address)
2710
1767
if self.use_dbus:
2711
1768
# Emit D-Bus signal
2712
mandos_dbus_service.ClientNotFound(key_id or fpr,
1769
mandos_dbus_service.ClientNotFound(fpr,
2713
1770
address[0])
2714
1771
parent_pipe.send(False)
2715
1772
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))
1773
1774
gobject.io_add_watch(parent_pipe.fileno(),
1775
gobject.IO_IN | gobject.IO_HUP,
1776
functools.partial(self.handle_ipc,
1777
parent_pipe =
1778
parent_pipe,
1779
proc = proc,
1780
client_object =
1781
client))
2724
1782
parent_pipe.send(True)
2725
1783
# remove the old hook in favor of the new above hook on
2726
1784
# same fileno
2729
1787
funcname = request[1]
2730
1788
args = request[2]
2731
1789
kwargs = request[3]
2732
1790
2733
1791
parent_pipe.send(('data', getattr(client_object,
2734
1792
funcname)(*args,
2735
**kwargs)))
2736
1793
**kwargs)))
1794
2737
1795
if command == 'getattr':
2738
1796
attrname = request[1]
2739
if isinstance(client_object.__getattribute__(attrname),
2740
collections.Callable):
2741
parent_pipe.send(('function', ))
1797
if callable(client_object.__getattribute__(attrname)):
1798
parent_pipe.send(('function',))
2742
1799
else:
2743
parent_pipe.send((
2744
'data', client_object.__getattribute__(attrname)))
2745
1800
parent_pipe.send(('data', client_object
1801
.__getattribute__(attrname)))
1802
2746
1803
if command == 'setattr':
2747
1804
attrname = request[1]
2748
1805
value = request[2]
2749
1806
setattr(client_object, attrname, value)
2750
1807
2751
1808
return True
2752
1809
2753
1810
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
1811
def string_to_delta(interval):
2854
1812
"""Parse a string and return a datetime.timedelta
2855
1813
2856
1814
>>> string_to_delta('7d')
2857
1815
datetime.timedelta(7)
2858
1816
>>> string_to_delta('60s')
2866
1824
>>> string_to_delta('5m 30s')
2867
1825
datetime.timedelta(0, 330)
2868
1826
"""
2869
2870
try:
2871
return rfc3339_duration_to_delta(interval)
2872
except ValueError:
2873
pass
2874
2875
1827
timevalue = datetime.timedelta(0)
2876
1828
for s in interval.split():
2877
1829
try:
2878
suffix = s[-1]
1830
suffix = unicode(s[-1])
2879
1831
value = int(s[:-1])
2880
1832
if suffix == "d":
2881
1833
delta = datetime.timedelta(value)
2888
1840
elif suffix == "w":
2889
1841
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2890
1842
else:
2891
raise ValueError("Unknown suffix {!r}".format(suffix))
2892
except IndexError as e:
1843
raise ValueError("Unknown suffix %r" % suffix)
1844
except (ValueError, IndexError) as e:
2893
1845
raise ValueError(*(e.args))
2894
1846
timevalue += delta
2895
1847
return timevalue
2896
1848
2897
1849
2898
def daemon(nochdir=False, noclose=False):
1850
def if_nametoindex(interface):
1851
"""Call the C function if_nametoindex(), or equivalent
1852
1853
Note: This function cannot accept a unicode string."""
1854
global if_nametoindex
1855
try:
1856
if_nametoindex = (ctypes.cdll.LoadLibrary
1857
(ctypes.util.find_library("c"))
1858
.if_nametoindex)
1859
except (OSError, AttributeError):
1860
logger.warning("Doing if_nametoindex the hard way")
1861
def if_nametoindex(interface):
1862
"Get an interface index the hard way, i.e. using fcntl()"
1863
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1864
with contextlib.closing(socket.socket()) as s:
1865
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1866
struct.pack(str("16s16x"),
1867
interface))
1868
interface_index = struct.unpack(str("I"),
1869
ifreq[16:20])[0]
1870
return interface_index
1871
return if_nametoindex(interface)
1872
1873
1874
def daemon(nochdir = False, noclose = False):
2899
1875
"""See daemon(3). Standard BSD Unix function.
2900
1876
2901
1877
This should really exist as os.daemon, but it doesn't (yet)."""
2902
1878
if os.fork():
2903
1879
sys.exit()
2908
1884
sys.exit()
2909
1885
if not noclose:
2910
1886
# Close all standard open file descriptors
2911
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1887
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2912
1888
if not stat.S_ISCHR(os.fstat(null).st_mode):
2913
1889
raise OSError(errno.ENODEV,
2914
"{} not a character device"
2915
.format(os.devnull))
1890
"%s not a character device"
1891
% os.path.devnull)
2916
1892
os.dup2(null, sys.stdin.fileno())
2917
1893
os.dup2(null, sys.stdout.fileno())
2918
1894
os.dup2(null, sys.stderr.fileno())
2921
1897
2922
1898
2923
1899
def main():
2924
1900
2925
1901
##################################################################
2926
1902
# Parsing of options, both command line and config file
2927
1903
2928
1904
parser = argparse.ArgumentParser()
2929
1905
parser.add_argument("-v", "--version", action="version",
2930
version="%(prog)s {}".format(version),
1906
version = "%%(prog)s %s" % version,
2931
1907
help="show version number and exit")
2932
1908
parser.add_argument("-i", "--interface", metavar="IF",
2933
1909
help="Bind to interface IF")
2939
1915
help="Run self-test")
2940
1916
parser.add_argument("--debug", action="store_true",
2941
1917
help="Debug mode; run in foreground and log"
2942
" to terminal", default=None)
1918
" to terminal")
2943
1919
parser.add_argument("--debuglevel", metavar="LEVEL",
2944
1920
help="Debug level for stdout output")
2945
1921
parser.add_argument("--priority", help="GnuTLS"
2952
1928
" files")
2953
1929
parser.add_argument("--no-dbus", action="store_false",
2954
1930
dest="use_dbus", help="Do not provide D-Bus"
2955
" system bus interface", default=None)
1931
" system bus interface")
2956
1932
parser.add_argument("--no-ipv6", action="store_false",
2957
dest="use_ipv6", help="Do not use IPv6",
2958
default=None)
1933
dest="use_ipv6", help="Do not use IPv6")
2959
1934
parser.add_argument("--no-restore", action="store_false",
2960
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")
2965
parser.add_argument("--statedir", metavar="DIR",
2966
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)
1935
dest="restore",
1936
help="Do not restore stored state",
1937
default=True)
2972
1938
2973
1939
options = parser.parse_args()
2974
1940
2975
1941
if options.check:
2976
1942
import doctest
2977
fail_count, test_count = doctest.testmod()
2978
sys.exit(os.EX_OK if fail_count == 0 else 1)
2979
1943
doctest.testmod()
1944
sys.exit()
1945
2980
1946
# 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
1947
server_defaults = { "interface": "",
1948
"address": "",
1949
"port": "",
1950
"debug": "False",
1951
"priority":
1952
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1953
"servicename": "Mandos",
1954
"use_dbus": "True",
1955
"use_ipv6": "True",
1956
"debuglevel": "",
1957
}
1958
3004
1959
# Parse config file for server-global settings
3005
server_config = configparser.ConfigParser(server_defaults)
1960
server_config = configparser.SafeConfigParser(server_defaults)
3006
1961
del server_defaults
3007
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3008
# Convert the ConfigParser object to a dict
1962
server_config.read(os.path.join(options.configdir,
1963
"mandos.conf"))
1964
# Convert the SafeConfigParser object to a dict
3009
1965
server_settings = server_config.defaults()
3010
1966
# Use the appropriate methods on the non-string config options
3011
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3012
"foreground", "zeroconf"):
1967
for option in ("debug", "use_dbus", "use_ipv6"):
3013
1968
server_settings[option] = server_config.getboolean("DEFAULT",
3014
1969
option)
3015
1970
if server_settings["port"]:
3016
1971
server_settings["port"] = server_config.getint("DEFAULT",
3017
1972
"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
1973
del server_config
3028
1974
3029
1975
# Override the settings from the config file with command line
3030
1976
# options, if set.
3031
1977
for option in ("interface", "address", "port", "debug",
3032
"priority", "servicename", "configdir", "use_dbus",
3033
"use_ipv6", "debuglevel", "restore", "statedir",
3034
"socket", "foreground", "zeroconf"):
1978
"priority", "servicename", "configdir",
1979
"use_dbus", "use_ipv6", "debuglevel", "restore"):
3035
1980
value = getattr(options, option)
3036
1981
if value is not None:
3037
1982
server_settings[option] = value
3038
1983
del options
3039
1984
# Force all strings to be unicode
3040
1985
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
1986
if type(server_settings[option]) is str:
1987
server_settings[option] = unicode(server_settings[option])
3051
1988
# Now we have our good server settings in "server_settings"
3052
1989
3053
1990
##################################################################
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
1991
3060
1992
# For convenience
3061
1993
debug = server_settings["debug"]
3062
1994
debuglevel = server_settings["debuglevel"]
3063
1995
use_dbus = server_settings["use_dbus"]
3064
1996
use_ipv6 = server_settings["use_ipv6"]
3065
stored_state_path = os.path.join(server_settings["statedir"],
3066
stored_state_file)
3067
foreground = server_settings["foreground"]
3068
zeroconf = server_settings["zeroconf"]
3069
3070
if debug:
3071
initlogger(debug, logging.DEBUG)
3072
else:
3073
if not debuglevel:
3074
initlogger(debug)
3075
else:
3076
level = getattr(logging, debuglevel.upper())
3077
initlogger(debug, level)
3078
1997
3079
1998
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
1999
syslogger.setFormatter(logging.Formatter
2000
('Mandos (%s) [%%(process)d]:'
2001
' %%(levelname)s: %%(message)s'
2002
% server_settings["servicename"]))
2003
3085
2004
# Parse config file with clients
3086
client_config = configparser.ConfigParser(Client.client_defaults)
2005
client_defaults = { "timeout": "5m",
2006
"extended_timeout": "15m",
2007
"interval": "2m",
2008
"checker": "fping -q -- %%(host)s",
2009
"host": "",
2010
"approval_delay": "0s",
2011
"approval_duration": "1s",
2012
}
2013
client_config = configparser.SafeConfigParser(client_defaults)
3087
2014
client_config.read(os.path.join(server_settings["configdir"],
3088
2015
"clients.conf"))
3089
2016
3090
2017
global mandos_dbus_service
3091
2018
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
2019
2020
tcp_server = MandosServer((server_settings["address"],
2021
server_settings["port"]),
2022
ClientHandler,
2023
interface=(server_settings["interface"]
2024
or None),
2025
use_ipv6=use_ipv6,
2026
gnutls_priority=
2027
server_settings["priority"],
2028
use_dbus=use_dbus)
2029
if not debug:
2030
pidfilename = "/var/run/mandos.pid"
2031
try:
2032
pidfile = open(pidfilename, "w")
2033
except IOError:
2034
logger.error("Could not open file %r", pidfilename)
2035
2036
try:
2037
uid = pwd.getpwnam("_mandos").pw_uid
2038
gid = pwd.getpwnam("_mandos").pw_gid
2039
except KeyError:
2040
try:
2041
uid = pwd.getpwnam("mandos").pw_uid
2042
gid = pwd.getpwnam("mandos").pw_gid
3122
2043
except KeyError:
3123
continue
3124
else:
3125
uid = 65534
3126
gid = 65534
2044
try:
2045
uid = pwd.getpwnam("nobody").pw_uid
2046
gid = pwd.getpwnam("nobody").pw_gid
2047
except KeyError:
2048
uid = 65534
2049
gid = 65534
3127
2050
try:
3128
2051
os.setgid(gid)
3129
2052
os.setuid(uid)
3130
if debug:
3131
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3132
gid))
3133
2053
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
2054
if error[0] != errno.EPERM:
2055
raise error
2056
2057
if not debug and not debuglevel:
2058
logger.setLevel(logging.WARNING)
2059
if debuglevel:
2060
level = getattr(logging, debuglevel.upper())
2061
logger.setLevel(level)
2062
3139
2063
if debug:
2064
logger.setLevel(logging.DEBUG)
3140
2065
# Enable all possible GnuTLS debugging
3141
2066
3142
2067
# "Use a log level over 10 to enable all debugging options."
3143
2068
# - GnuTLS manual
3144
gnutls.global_set_log_level(11)
3145
3146
@gnutls.log_func
2069
gnutls.library.functions.gnutls_global_set_log_level(11)
2070
2071
@gnutls.library.types.gnutls_log_func
3147
2072
def debug_gnutls(level, string):
3148
2073
logger.debug("GnuTLS: %s", string[:-1])
3149
3150
gnutls.global_set_log_function(debug_gnutls)
3151
2074
2075
(gnutls.library.functions
2076
.gnutls_global_set_log_function(debug_gnutls))
2077
3152
2078
# Redirect stdin so all checkers get /dev/null
3153
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2079
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3154
2080
os.dup2(null, sys.stdin.fileno())
3155
2081
if null > 2:
3156
2082
os.close(null)
3157
2083
else:
2084
# No console logging
2085
logger.removeHandler(console)
2086
3158
2087
# Need to fork before connecting to D-Bus
3159
if not foreground:
2088
if not debug:
3160
2089
# Close all input and output, do double fork, etc.
3161
2090
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
2091
3168
2092
global main_loop
3169
2093
# From the Avahi example code
3170
DBusGMainLoop(set_as_default=True)
3171
main_loop = GLib.MainLoop()
2094
DBusGMainLoop(set_as_default=True )
2095
main_loop = gobject.MainLoop()
3172
2096
bus = dbus.SystemBus()
3173
2097
# End of Avahi example code
3174
2098
if use_dbus:
3175
2099
try:
3176
2100
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)
2101
bus, do_not_queue=True)
2102
old_bus_name = (dbus.service.BusName
2103
("se.bsnet.fukt.Mandos", bus,
2104
do_not_queue=True))
2105
except dbus.exceptions.NameExistsException as e:
2106
logger.error(unicode(e) + ", disabling D-Bus")
3184
2107
use_dbus = False
3185
2108
server_settings["use_dbus"] = False
3186
2109
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
2110
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2111
service = AvahiServiceToSyslog(name =
2112
server_settings["servicename"],
2113
servicetype = "_mandos._tcp",
2114
protocol = protocol, bus = bus)
2115
if server_settings["interface"]:
2116
service.interface = (if_nametoindex
2117
(str(server_settings["interface"])))
2118
3198
2119
global multiprocessing_manager
3199
2120
multiprocessing_manager = multiprocessing.Manager()
3200
2121
3201
2122
client_class = Client
3202
2123
if use_dbus:
3203
client_class = functools.partial(ClientDBus, bus=bus)
3204
3205
client_settings = Client.config_parser(client_config)
2124
client_class = functools.partial(ClientDBusTransitional,
2125
bus = bus)
2126
2127
special_settings = {
2128
# Some settings need to be accessd by special methods;
2129
# booleans need .getboolean(), etc. Here is a list of them:
2130
"approved_by_default":
2131
lambda section:
2132
client_config.getboolean(section, "approved_by_default"),
2133
}
2134
# Construct a new dict of client settings of this form:
2135
# { client_name: {setting_name: value, ...}, ...}
2136
# with exceptions for any special settings as defined above
2137
client_settings = dict((clientname,
2138
dict((setting,
2139
(value if
2140
setting not in special_settings
2141
else special_settings[setting]
2142
(clientname)))
2143
for setting, value
2144
in client_config.items(clientname)))
2145
for clientname in client_config.sections())
2146
3206
2147
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
3217
# Get client data and settings from last running state.
2148
clients_data = []
2149
2150
# Get client data and settings from last running state.
3218
2151
if server_settings["restore"]:
3219
2152
try:
3220
2153
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"))
2154
clients_data, old_client_settings = (
2155
pickle.load(stored_state))
3270
2156
os.remove(stored_state_path)
3271
2157
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)
2158
logger.warning("Could not load persistant state: {0}"
2159
.format(e))
2160
if e.errno != errno.ENOENT:
3278
2161
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
3290
# Decide which value to use after restoring saved state.
3291
# We have three different values: Old config file,
3292
# new config file, and saved state.
3293
# New config value takes precedence if it differs from old
3294
# config value, otherwise use saved state.
3295
for name, value in client_settings[client_name].items():
3296
try:
3297
# For each value in new config, check if it
3298
# differs from the old config value (Except for
3299
# the "secret" attribute)
3300
if (name != "secret"
3301
and (value !=
3302
old_client_settings[client_name][name])):
3303
client[name] = value
3304
except KeyError:
3305
pass
3306
3307
# 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"]))
3327
client["enabled"] = False
3328
else:
3329
client["expires"] = (
3330
datetime.datetime.utcnow()
3331
+ client["timeout"])
3332
logger.debug("Last checker succeeded,"
3333
" keeping {} enabled".format(
3334
client_name))
2162
2163
for client in clients_data:
2164
client_name = client["name"]
2165
2166
# Decide which value to use after restoring saved state.
2167
# We have three different values: Old config file,
2168
# new config file, and saved state.
2169
# New config value takes precedence if it differs from old
2170
# config value, otherwise use saved state.
2171
for name, value in client_settings[client_name].items():
3335
2172
try:
3336
client["secret"] = pgp.decrypt(
3337
client["encrypted_secret"],
3338
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
2173
# For each value in new config, check if it differs
2174
# from the old config value (Except for the "secret"
2175
# attribute)
2176
if (name != "secret" and
2177
value != old_client_settings[client_name][name]):
2178
setattr(client, name, value)
2179
except KeyError:
2180
pass
2181
2182
# Clients who has passed its expire date, can still be enabled
2183
# if its last checker was sucessful. Clients who checkers
2184
# failed before we stored it state is asumed to had failed
2185
# checker during downtime.
2186
if client["enabled"] and client["last_checked_ok"]:
2187
if ((datetime.datetime.utcnow()
2188
- client["last_checked_ok"]) > client["interval"]):
2189
if client["last_checker_status"] != 0:
2190
client["enabled"] = False
2191
else:
2192
client["expires"] = (datetime.datetime.utcnow()
2193
+ client["timeout"])
2194
2195
client["changedstate"] = (multiprocessing_manager
2196
.Condition(multiprocessing_manager
2197
.Lock()))
2198
if use_dbus:
2199
new_client = ClientDBusTransitional.__new__(
2200
ClientDBusTransitional)
2201
tcp_server.clients[client_name] = new_client
2202
new_client.bus = bus
2203
for name, value in client.iteritems():
2204
setattr(new_client, name, value)
2205
new_client._approvals_pending = 0
2206
new_client.add_to_dbus()
2207
else:
2208
tcp_server.clients[client_name] = Client.__new__(Client)
2209
for name, value in client.iteritems():
2210
setattr(tcp_server.clients[client_name], name, value)
2211
2212
tcp_server.clients[client_name].decrypt_secret(
2213
client_settings[client_name]["secret"])
2214
2215
# Create/remove clients based on new changes made to config
2216
for clientname in set(old_client_settings) - set(client_settings):
2217
del tcp_server.clients[clientname]
2218
for clientname in set(client_settings) - set(old_client_settings):
2219
tcp_server.clients[clientname] = client_class(name
2220
= clientname,
2221
config =
2222
client_settings
2223
[clientname])
2224
3361
2225
if not tcp_server.clients:
3362
2226
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
2227
2228
if not debug:
2229
try:
2230
with pidfile:
2231
pid = os.getpid()
2232
pidfile.write(str(pid) + "\n".encode("utf-8"))
2233
del pidfile
2234
except IOError:
2235
logger.error("Could not write to file %r with PID %d",
2236
pidfilename, pid)
2237
except NameError:
2238
# "pidfile" was never created
2239
pass
3374
2240
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
2241
2242
signal.signal(signal.SIGINT, signal.SIG_IGN)
2243
2244
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2245
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2246
3380
2247
if use_dbus:
3381
3382
@alternate_dbus_interfaces(
3383
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3384
class MandosDBusService(DBusObjectWithObjectManager):
2248
class MandosDBusService(dbus.service.Object):
3385
2249
"""A D-Bus proxy object"""
3386
3387
2250
def __init__(self):
3388
2251
dbus.service.Object.__init__(self, bus, "/")
3389
3390
2252
_interface = "se.recompile.Mandos"
3391
2253
3392
2254
@dbus.service.signal(_interface, signature="o")
3393
2255
def ClientAdded(self, objpath):
3394
2256
"D-Bus signal"
3395
2257
pass
3396
2258
3397
2259
@dbus.service.signal(_interface, signature="ss")
3398
def ClientNotFound(self, key_id, address):
2260
def ClientNotFound(self, fingerprint, address):
3399
2261
"D-Bus signal"
3400
2262
pass
3401
3402
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3403
"true"})
2263
3404
2264
@dbus.service.signal(_interface, signature="os")
3405
2265
def ClientRemoved(self, objpath, name):
3406
2266
"D-Bus signal"
3407
2267
pass
3408
3409
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3410
"true"})
2268
3411
2269
@dbus.service.method(_interface, out_signature="ao")
3412
2270
def GetAllClients(self):
3413
2271
"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"})
2272
return dbus.Array(c.dbus_object_path
2273
for c in
2274
tcp_server.clients.itervalues())
2275
3419
2276
@dbus.service.method(_interface,
3420
2277
out_signature="a{oa{sv}}")
3421
2278
def GetAllClientsWithProperties(self):
3422
2279
"D-Bus method"
3423
2280
return dbus.Dictionary(
3424
{c.dbus_object_path: c.GetAll(
3425
"se.recompile.Mandos.Client")
3426
for c in tcp_server.clients.values()},
2281
((c.dbus_object_path, c.GetAll(""))
2282
for c in tcp_server.clients.itervalues()),
3427
2283
signature="oa{sv}")
3428
2284
3429
2285
@dbus.service.method(_interface, in_signature="o")
3430
2286
def RemoveClient(self, object_path):
3431
2287
"D-Bus method"
3432
for c in tcp_server.clients.values():
2288
for c in tcp_server.clients.itervalues():
3433
2289
if c.dbus_object_path == object_path:
3434
2290
del tcp_server.clients[c.name]
3435
2291
c.remove_from_connection()
3436
# Don't signal the disabling
2292
# Don't signal anything except ClientRemoved
3437
2293
c.disable(quiet=True)
3438
# Emit D-Bus signal for removal
3439
self.client_removed_signal(c)
2294
# Emit D-Bus signal
2295
self.ClientRemoved(object_path, c.name)
3440
2296
return
3441
2297
raise KeyError(object_path)
3442
2298
3443
2299
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
2300
2301
class MandosDBusServiceTransitional(MandosDBusService):
2302
__metaclass__ = AlternateDBusNamesMetaclass
2303
mandos_dbus_service = MandosDBusServiceTransitional()
2304
3488
2305
def cleanup():
3489
2306
"Cleanup function; run on exit"
3490
if zeroconf:
3491
service.cleanup()
3492
3493
mp.active_children()
3494
wn.close()
2307
service.cleanup()
2308
2309
multiprocessing.active_children()
3495
2310
if not (tcp_server.clients or client_settings):
3496
2311
return
3497
2312
3498
2313
# Store client before exiting. Secrets are encrypted with key
3499
2314
# based on what config file has. If config file is
3500
2315
# removed/edited, old secret will thus be unrecovable.
3501
clients = {}
3502
with PGPEngine() as pgp:
3503
for client in tcp_server.clients.values():
3504
key = client_settings[client.name]["secret"]
3505
client.encrypted_secret = pgp.encrypt(client.secret,
3506
key)
3507
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):
3515
exclude.add(name)
3516
3517
client_dict["encrypted_secret"] = (client
3518
.encrypted_secret)
3519
for attr in client.client_structure:
3520
if attr not in exclude:
3521
client_dict[attr] = getattr(client, attr)
3522
3523
clients[client.name] = client_dict
3524
del client_settings[client.name]["secret"]
3525
2316
clients = []
2317
for client in tcp_server.clients.itervalues():
2318
client.encrypt_secret(
2319
client_settings[client.name]["secret"])
2320
2321
client_dict = {}
2322
2323
# A list of attributes that will not be stored when
2324
# shutting down.
2325
exclude = set(("bus", "changedstate", "secret"))
2326
for name, typ in inspect.getmembers(dbus.service.Object):
2327
exclude.add(name)
2328
2329
client_dict["encrypted_secret"] = client.encrypted_secret
2330
for attr in client.client_structure:
2331
if attr not in exclude:
2332
client_dict[attr] = getattr(client, attr)
2333
2334
clients.append(client_dict)
2335
del client_settings[client.name]["secret"]
2336
3526
2337
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)
3537
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)
2338
with os.fdopen(os.open(stored_state_path,
2339
os.O_CREAT|os.O_WRONLY|os.O_TRUNC,
2340
stat.S_IRUSR | stat.S_IWUSR),
2341
"wb") as stored_state:
2342
pickle.dump((clients, client_settings), stored_state)
2343
except IOError as e:
2344
logger.warning("Could not save persistant state: {0}"
2345
.format(e))
2346
if e.errno != errno.ENOENT:
3549
2347
raise
3550
2348
3551
2349
# Delete all clients, and settings from config
3553
2351
name, client = tcp_server.clients.popitem()
3554
2352
if use_dbus:
3555
2353
client.remove_from_connection()
3556
# Don't signal the disabling
2354
# Don't signal anything except ClientRemoved
3557
2355
client.disable(quiet=True)
3558
# Emit D-Bus signal for removal
3559
2356
if use_dbus:
3560
mandos_dbus_service.client_removed_signal(client)
2357
# Emit D-Bus signal
2358
mandos_dbus_service.ClientRemoved(client
2359
.dbus_object_path,
2360
client.name)
3561
2361
client_settings.clear()
3562
2362
3563
2363
atexit.register(cleanup)
3564
3565
for client in tcp_server.clients.values():
2364
2365
for client in tcp_server.clients.itervalues():
3566
2366
if use_dbus:
3567
# Emit D-Bus signal for adding
3568
mandos_dbus_service.client_added_signal(client)
2367
# Emit D-Bus signal
2368
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3569
2369
# Need to initiate checking of clients
3570
2370
if client.enabled:
3571
2371
client.init_checker()
3572
2372
2373
3573
2374
tcp_server.enable()
3574
2375
tcp_server.server_activate()
3575
2376
3576
2377
# Find out what port we got
3577
if zeroconf:
3578
service.port = tcp_server.socket.getsockname()[1]
2378
service.port = tcp_server.socket.getsockname()[1]
3579
2379
if use_ipv6:
3580
2380
logger.info("Now listening on address %r, port %d,"
3581
" flowinfo %d, scope_id %d",
3582
*tcp_server.socket.getsockname())
2381
" flowinfo %d, scope_id %d"
2382
% tcp_server.socket.getsockname())
3583
2383
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
2384
logger.info("Now listening on address %r, port %d"
2385
% tcp_server.socket.getsockname())
2386
2387
#service.interface = tcp_server.socket.getsockname()[3]
2388
3589
2389
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
2390
# From the Avahi example code
2391
try:
2392
service.activate()
2393
except dbus.exceptions.DBusException as error:
2394
logger.critical("DBusException: %s", error)
2395
cleanup()
2396
sys.exit(1)
2397
# End of Avahi example code
2398
2399
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2400
lambda *args, **kwargs:
2401
(tcp_server.handle_request
2402
(*args[2:], **kwargs) or True))
2403
3605
2404
logger.debug("Starting main loop")
3606
2405
main_loop.run()
3607
2406
except AvahiError as error:
3608
logger.critical("Avahi Error", exc_info=error)
2407
logger.critical("AvahiError: %s", error)
3609
2408
cleanup()
3610
2409
sys.exit(1)
3611
2410
except KeyboardInterrupt:
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0