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- Committer: Björn Påhlsson
- Date: 2011-10-02 19:18:24 UTC
- mto: This revision was merged to the branch mainline in revision 505.
- Revision ID: belorn@fukt.bsnet.se-20111002191824-eweh4pvneeg3qzia
transitional stuff actually working
documented change to D-Bus API
documented change to D-Bus API
- files added:
- 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
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
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 © 2008-2020 Teddy Hogeborn
15
# Copyright © 2008-2020 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
#
32
# Contact the authors at <mandos@recompile.se>.
33
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
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
80
import unittest
81
import random
82
import shlex
83
66
84
67
import dbus
85
68
import dbus.service
86
import gi
87
from gi.repository import GLib
69
import gobject
70
import avahi
88
71
from dbus.mainloop.glib import DBusGMainLoop
89
72
import ctypes
90
73
import ctypes.util
91
74
import xml.dom.minidom
92
75
import inspect
93
76
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
77
try:
122
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
79
except AttributeError:
124
80
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
127
81
from IN import SO_BINDTODEVICE
128
82
except ImportError:
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.14"
147
stored_state_file = "clients.pickle"
148
149
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
152
153
try:
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
156
except (OSError, AttributeError):
157
158
def if_nametoindex(interface):
159
"Get an interface index the hard way, i.e. using fcntl()"
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
161
with contextlib.closing(socket.socket()) as s:
162
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
165
return interface_index
166
167
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
184
def initlogger(debug, level=logging.WARNING):
185
"""init logger and add loglevel"""
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
191
syslogger.setFormatter(logging.Formatter
192
('Mandos [%(process)d]: %(levelname)s:'
193
' %(message)s'))
194
logger.addHandler(syslogger)
195
196
if debug:
197
console = logging.StreamHandler()
198
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
199
' [%(process)d]:'
200
' %(levelname)s:'
201
' %(message)s'))
202
logger.addHandler(console)
203
logger.setLevel(level)
204
205
206
class PGPError(Exception):
207
"""Exception if encryption/decryption fails"""
208
pass
209
210
211
class PGPEngine:
212
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
214
def __init__(self):
215
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ['--batch',
228
'--homedir', self.tempdir,
229
'--force-mdc',
230
'--quiet']
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
235
def __enter__(self):
236
return self
237
238
def __exit__(self, exc_type, exc_value, traceback):
239
self._cleanup()
240
return False
241
242
def __del__(self):
243
self._cleanup()
244
245
def _cleanup(self):
246
if self.tempdir is not None:
247
# Delete contents of tempdir
248
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
250
for filename in files:
251
os.remove(os.path.join(root, filename))
252
for dirname in dirs:
253
os.rmdir(os.path.join(root, dirname))
254
# Remove tempdir
255
os.rmdir(self.tempdir)
256
self.tempdir = None
257
258
def password_encode(self, password):
259
# Passphrase can not be empty and can not contain newlines or
260
# NUL bytes. So we prefix it and hex encode it.
261
encoded = b"mandos" + binascii.hexlify(password)
262
if len(encoded) > 2048:
263
# GnuPG can't handle long passwords, so encode differently
264
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
.replace(b"\n", b"\\n")
266
.replace(b"\0", b"\\x00"))
267
return encoded
268
269
def encrypt(self, data, password):
270
passphrase = self.password_encode(password)
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
273
passfile.write(passphrase)
274
passfile.flush()
275
proc = subprocess.Popen([self.gpg, '--symmetric',
276
'--passphrase-file',
277
passfile.name]
278
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
283
if proc.returncode != 0:
284
raise PGPError(err)
285
return ciphertext
286
287
def decrypt(self, data, password):
288
passphrase = self.password_encode(password)
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
291
passfile.write(passphrase)
292
passfile.flush()
293
proc = subprocess.Popen([self.gpg, '--decrypt',
294
'--passphrase-file',
295
passfile.name]
296
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
301
if proc.returncode != 0:
302
raise PGPError(err)
303
return decrypted_plaintext
304
305
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
83
SO_BINDTODEVICE = None
84
85
86
version = "1.3.1"
87
88
#logger = logging.getLogger('mandos')
89
logger = logging.Logger('mandos')
90
syslogger = (logging.handlers.SysLogHandler
91
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
92
address = str("/dev/log")))
93
syslogger.setFormatter(logging.Formatter
94
('Mandos [%(process)d]: %(levelname)s:'
95
' %(message)s'))
96
logger.addHandler(syslogger)
97
98
console = logging.StreamHandler()
99
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
331
103
332
104
class AvahiError(Exception):
333
105
def __init__(self, value, *args, **kwargs):
334
106
self.value = value
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
338
110
339
111
class AvahiServiceError(AvahiError):
340
112
pass
341
113
342
343
114
class AvahiGroupError(AvahiError):
344
115
pass
345
116
346
117
347
class AvahiService:
118
class AvahiService(object):
348
119
"""An Avahi (Zeroconf) service.
349
120
350
121
Attributes:
351
122
interface: integer; avahi.IF_UNSPEC or an interface index.
352
123
Used to optionally bind to the specified interface.
353
124
name: string; Example: 'Mandos'
354
125
type: string; Example: '_mandos._tcp'.
355
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
356
127
port: integer; what port to announce
357
128
TXT: list of strings; TXT record for the service
358
129
domain: string; Domain to publish on, default to .local if empty.
364
135
server: D-Bus Server
365
136
bus: dbus.SystemBus()
366
137
"""
367
368
def __init__(self,
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
138
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
139
servicetype = None, port = None, TXT = None,
140
domain = "", host = "", max_renames = 32768,
141
protocol = avahi.PROTO_UNSPEC, bus = None):
379
142
self.interface = interface
380
143
self.name = name
381
144
self.type = servicetype
390
153
self.server = None
391
154
self.bus = bus
392
155
self.entry_group_state_changed_match = None
393
394
def rename(self, remove=True):
156
def rename(self):
395
157
"""Derived from the Avahi example code"""
396
158
if self.rename_count >= self.max_renames:
397
159
logger.critical("No suitable Zeroconf service name found"
398
160
" after %i retries, exiting.",
399
161
self.rename_count)
400
162
raise AvahiServiceError("Too many renames")
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
163
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
404
164
logger.info("Changing Zeroconf service name to %r ...",
405
165
self.name)
406
if remove:
407
self.remove()
166
syslogger.setFormatter(logging.Formatter
167
('Mandos (%s) [%%(process)d]:'
168
' %%(levelname)s: %%(message)s'
169
% self.name))
170
self.remove()
408
171
try:
409
172
self.add()
410
173
except dbus.exceptions.DBusException as error:
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
logger.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
logger.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
174
logger.critical("DBusException: %s", error)
175
self.cleanup()
176
os._exit(1)
177
self.rename_count += 1
420
178
def remove(self):
421
179
"""Derived from the Avahi example code"""
422
180
if self.entry_group_state_changed_match is not None:
424
182
self.entry_group_state_changed_match = None
425
183
if self.group is not None:
426
184
self.group.Reset()
427
428
185
def add(self):
429
186
"""Derived from the Avahi example code"""
430
187
self.remove()
435
192
avahi.DBUS_INTERFACE_ENTRY_GROUP)
436
193
self.entry_group_state_changed_match = (
437
194
self.group.connect_to_signal(
438
'StateChanged', self.entry_group_state_changed))
195
'StateChanged', self .entry_group_state_changed))
439
196
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
440
197
self.name, self.type)
441
198
self.group.AddService(
447
204
dbus.UInt16(self.port),
448
205
avahi.string_array_to_txt_array(self.TXT))
449
206
self.group.Commit()
450
451
207
def entry_group_state_changed(self, state, error):
452
208
"""Derived from the Avahi example code"""
453
209
logger.debug("Avahi entry group state change: %i", state)
454
210
455
211
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
212
logger.debug("Zeroconf service established.")
457
213
elif state == avahi.ENTRY_GROUP_COLLISION:
459
215
self.rename()
460
216
elif state == avahi.ENTRY_GROUP_FAILURE:
461
217
logger.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
218
unicode(error))
219
raise AvahiGroupError("State changed: %s"
220
% unicode(error))
465
221
def cleanup(self):
466
222
"""Derived from the Avahi example code"""
467
223
if self.group is not None:
468
224
try:
469
225
self.group.Free()
470
226
except (dbus.exceptions.UnknownMethodException,
471
dbus.exceptions.DBusException):
227
dbus.exceptions.DBusException) as e:
472
228
pass
473
229
self.group = None
474
230
self.remove()
475
476
231
def server_state_changed(self, state, error=None):
477
232
"""Derived from the Avahi example code"""
478
233
logger.debug("Avahi server state change: %i", state)
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
234
bad_states = { avahi.SERVER_INVALID:
235
"Zeroconf server invalid",
236
avahi.SERVER_REGISTERING: None,
237
avahi.SERVER_COLLISION:
238
"Zeroconf server name collision",
239
avahi.SERVER_FAILURE:
240
"Zeroconf server failure" }
485
241
if state in bad_states:
486
242
if bad_states[state] is not None:
487
243
if error is None:
490
246
logger.error(bad_states[state] + ": %r", error)
491
247
self.cleanup()
492
248
elif state == avahi.SERVER_RUNNING:
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
logger.info("Local Zeroconf service name"
499
" collision.")
500
return self.rename(remove=False)
501
else:
502
logger.critical("D-Bus Exception", exc_info=error)
503
self.cleanup()
504
os._exit(1)
249
self.add()
505
250
else:
506
251
if error is None:
507
252
logger.debug("Unknown state: %r", state)
508
253
else:
509
254
logger.debug("Unknown state: %r: %r", state, error)
510
511
255
def activate(self):
512
256
"""Derived from the Avahi example code"""
513
257
if self.server is None:
517
261
follow_name_owner_changes=True),
518
262
avahi.DBUS_INTERFACE_SERVER)
519
263
self.server.connect_to_signal("StateChanged",
520
self.server_state_changed)
264
self.server_state_changed)
521
265
self.server_state_changed(self.server.GetState())
522
266
523
267
524
class AvahiServiceToSyslog(AvahiService):
525
def rename(self, *args, **kwargs):
526
"""Add the new name to the syslog messages"""
527
ret = super(AvahiServiceToSyslog, self).rename(*args,
528
**kwargs)
529
syslogger.setFormatter(logging.Formatter(
530
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
531
.format(self.name)))
532
return ret
533
534
535
# Pretend that we have a GnuTLS module
536
class gnutls:
537
"""This isn't so much a class as it is a module-like namespace."""
538
539
library = ctypes.util.find_library("gnutls")
540
if library is None:
541
library = ctypes.util.find_library("gnutls-deb0")
542
_library = ctypes.cdll.LoadLibrary(library)
543
del library
544
545
# Unless otherwise indicated, the constants and types below are
546
# all from the gnutls/gnutls.h C header file.
547
548
# Constants
549
E_SUCCESS = 0
550
E_INTERRUPTED = -52
551
E_AGAIN = -28
552
CRT_OPENPGP = 2
553
CRT_RAWPK = 3
554
CLIENT = 2
555
SHUT_RDWR = 0
556
CRD_CERTIFICATE = 1
557
E_NO_CERTIFICATE_FOUND = -49
558
X509_FMT_DER = 0
559
NO_TICKETS = 1<<10
560
ENABLE_RAWPK = 1<<18
561
CTYPE_PEERS = 3
562
KEYID_USE_SHA256 = 1 # gnutls/x509.h
563
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
564
565
# Types
566
class _session_int(ctypes.Structure):
567
_fields_ = []
568
session_t = ctypes.POINTER(_session_int)
569
570
class certificate_credentials_st(ctypes.Structure):
571
_fields_ = []
572
certificate_credentials_t = ctypes.POINTER(
573
certificate_credentials_st)
574
certificate_type_t = ctypes.c_int
575
576
class datum_t(ctypes.Structure):
577
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
578
('size', ctypes.c_uint)]
579
580
class _openpgp_crt_int(ctypes.Structure):
581
_fields_ = []
582
openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)
583
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
584
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
585
credentials_type_t = ctypes.c_int
586
transport_ptr_t = ctypes.c_void_p
587
close_request_t = ctypes.c_int
588
589
# Exceptions
590
class Error(Exception):
591
def __init__(self, message=None, code=None, args=()):
592
# Default usage is by a message string, but if a return
593
# code is passed, convert it to a string with
594
# gnutls.strerror()
595
self.code = code
596
if message is None and code is not None:
597
message = gnutls.strerror(code).decode(
598
"utf-8", errors="replace")
599
return super(gnutls.Error, self).__init__(
600
message, *args)
601
602
class CertificateSecurityError(Error):
603
pass
604
605
class PointerTo:
606
def __init__(self, cls):
607
self.cls = cls
608
609
def from_param(self, obj):
610
if not isinstance(obj, self.cls):
611
raise TypeError("Not of type {}: {!r}"
612
.format(self.cls.__name__, obj))
613
return ctypes.byref(obj.from_param(obj))
614
615
class CastToVoidPointer:
616
def __init__(self, cls):
617
self.cls = cls
618
619
def from_param(self, obj):
620
if not isinstance(obj, self.cls):
621
raise TypeError("Not of type {}: {!r}"
622
.format(self.cls.__name__, obj))
623
return ctypes.cast(obj.from_param(obj), ctypes.c_void_p)
624
625
class With_from_param:
626
@classmethod
627
def from_param(cls, obj):
628
return obj._as_parameter_
629
630
# Classes
631
class Credentials(With_from_param):
632
def __init__(self):
633
self._as_parameter_ = gnutls.certificate_credentials_t()
634
gnutls.certificate_allocate_credentials(self)
635
self.type = gnutls.CRD_CERTIFICATE
636
637
def __del__(self):
638
gnutls.certificate_free_credentials(self)
639
640
class ClientSession(With_from_param):
641
def __init__(self, socket, credentials=None):
642
self._as_parameter_ = gnutls.session_t()
643
gnutls_flags = gnutls.CLIENT
644
if gnutls.check_version(b"3.5.6"):
645
gnutls_flags |= gnutls.NO_TICKETS
646
if gnutls.has_rawpk:
647
gnutls_flags |= gnutls.ENABLE_RAWPK
648
gnutls.init(self, gnutls_flags)
649
del gnutls_flags
650
gnutls.set_default_priority(self)
651
gnutls.transport_set_ptr(self, socket.fileno())
652
gnutls.handshake_set_private_extensions(self, True)
653
self.socket = socket
654
if credentials is None:
655
credentials = gnutls.Credentials()
656
gnutls.credentials_set(self, credentials.type,
657
credentials)
658
self.credentials = credentials
659
660
def __del__(self):
661
gnutls.deinit(self)
662
663
def handshake(self):
664
return gnutls.handshake(self)
665
666
def send(self, data):
667
data = bytes(data)
668
data_len = len(data)
669
while data_len > 0:
670
data_len -= gnutls.record_send(self, data[-data_len:],
671
data_len)
672
673
def bye(self):
674
return gnutls.bye(self, gnutls.SHUT_RDWR)
675
676
# Error handling functions
677
def _error_code(result):
678
"""A function to raise exceptions on errors, suitable
679
for the 'restype' attribute on ctypes functions"""
680
if result >= gnutls.E_SUCCESS:
681
return result
682
if result == gnutls.E_NO_CERTIFICATE_FOUND:
683
raise gnutls.CertificateSecurityError(code=result)
684
raise gnutls.Error(code=result)
685
686
def _retry_on_error(result, func, arguments,
687
_error_code=_error_code):
688
"""A function to retry on some errors, suitable
689
for the 'errcheck' attribute on ctypes functions"""
690
while result < gnutls.E_SUCCESS:
691
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
692
return _error_code(result)
693
result = func(*arguments)
694
return result
695
696
# Unless otherwise indicated, the function declarations below are
697
# all from the gnutls/gnutls.h C header file.
698
699
# Functions
700
priority_set_direct = _library.gnutls_priority_set_direct
701
priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,
702
ctypes.POINTER(ctypes.c_char_p)]
703
priority_set_direct.restype = _error_code
704
705
init = _library.gnutls_init
706
init.argtypes = [PointerTo(ClientSession), ctypes.c_int]
707
init.restype = _error_code
708
709
set_default_priority = _library.gnutls_set_default_priority
710
set_default_priority.argtypes = [ClientSession]
711
set_default_priority.restype = _error_code
712
713
record_send = _library.gnutls_record_send
714
record_send.argtypes = [ClientSession, ctypes.c_void_p,
715
ctypes.c_size_t]
716
record_send.restype = ctypes.c_ssize_t
717
record_send.errcheck = _retry_on_error
718
719
certificate_allocate_credentials = (
720
_library.gnutls_certificate_allocate_credentials)
721
certificate_allocate_credentials.argtypes = [
722
PointerTo(Credentials)]
723
certificate_allocate_credentials.restype = _error_code
724
725
certificate_free_credentials = (
726
_library.gnutls_certificate_free_credentials)
727
certificate_free_credentials.argtypes = [Credentials]
728
certificate_free_credentials.restype = None
729
730
handshake_set_private_extensions = (
731
_library.gnutls_handshake_set_private_extensions)
732
handshake_set_private_extensions.argtypes = [ClientSession,
733
ctypes.c_int]
734
handshake_set_private_extensions.restype = None
735
736
credentials_set = _library.gnutls_credentials_set
737
credentials_set.argtypes = [ClientSession, credentials_type_t,
738
CastToVoidPointer(Credentials)]
739
credentials_set.restype = _error_code
740
741
strerror = _library.gnutls_strerror
742
strerror.argtypes = [ctypes.c_int]
743
strerror.restype = ctypes.c_char_p
744
745
certificate_type_get = _library.gnutls_certificate_type_get
746
certificate_type_get.argtypes = [ClientSession]
747
certificate_type_get.restype = _error_code
748
749
certificate_get_peers = _library.gnutls_certificate_get_peers
750
certificate_get_peers.argtypes = [ClientSession,
751
ctypes.POINTER(ctypes.c_uint)]
752
certificate_get_peers.restype = ctypes.POINTER(datum_t)
753
754
global_set_log_level = _library.gnutls_global_set_log_level
755
global_set_log_level.argtypes = [ctypes.c_int]
756
global_set_log_level.restype = None
757
758
global_set_log_function = _library.gnutls_global_set_log_function
759
global_set_log_function.argtypes = [log_func]
760
global_set_log_function.restype = None
761
762
deinit = _library.gnutls_deinit
763
deinit.argtypes = [ClientSession]
764
deinit.restype = None
765
766
handshake = _library.gnutls_handshake
767
handshake.argtypes = [ClientSession]
768
handshake.restype = ctypes.c_int
769
handshake.errcheck = _retry_on_error
770
771
transport_set_ptr = _library.gnutls_transport_set_ptr
772
transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]
773
transport_set_ptr.restype = None
774
775
bye = _library.gnutls_bye
776
bye.argtypes = [ClientSession, close_request_t]
777
bye.restype = ctypes.c_int
778
bye.errcheck = _retry_on_error
779
780
check_version = _library.gnutls_check_version
781
check_version.argtypes = [ctypes.c_char_p]
782
check_version.restype = ctypes.c_char_p
783
784
_need_version = b"3.3.0"
785
if check_version(_need_version) is None:
786
raise self.Error("Needs GnuTLS {} or later"
787
.format(_need_version))
788
789
_tls_rawpk_version = b"3.6.6"
790
has_rawpk = bool(check_version(_tls_rawpk_version))
791
792
if has_rawpk:
793
# Types
794
class pubkey_st(ctypes.Structure):
795
_fields = []
796
pubkey_t = ctypes.POINTER(pubkey_st)
797
798
x509_crt_fmt_t = ctypes.c_int
799
800
# All the function declarations below are from
801
# gnutls/abstract.h
802
pubkey_init = _library.gnutls_pubkey_init
803
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
804
pubkey_init.restype = _error_code
805
806
pubkey_import = _library.gnutls_pubkey_import
807
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
808
x509_crt_fmt_t]
809
pubkey_import.restype = _error_code
810
811
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
812
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
813
ctypes.POINTER(ctypes.c_ubyte),
814
ctypes.POINTER(ctypes.c_size_t)]
815
pubkey_get_key_id.restype = _error_code
816
817
pubkey_deinit = _library.gnutls_pubkey_deinit
818
pubkey_deinit.argtypes = [pubkey_t]
819
pubkey_deinit.restype = None
820
else:
821
# All the function declarations below are from
822
# gnutls/openpgp.h
823
824
openpgp_crt_init = _library.gnutls_openpgp_crt_init
825
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
826
openpgp_crt_init.restype = _error_code
827
828
openpgp_crt_import = _library.gnutls_openpgp_crt_import
829
openpgp_crt_import.argtypes = [openpgp_crt_t,
830
ctypes.POINTER(datum_t),
831
openpgp_crt_fmt_t]
832
openpgp_crt_import.restype = _error_code
833
834
openpgp_crt_verify_self = \
835
_library.gnutls_openpgp_crt_verify_self
836
openpgp_crt_verify_self.argtypes = [
837
openpgp_crt_t,
838
ctypes.c_uint,
839
ctypes.POINTER(ctypes.c_uint),
840
]
841
openpgp_crt_verify_self.restype = _error_code
842
843
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
844
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
845
openpgp_crt_deinit.restype = None
846
847
openpgp_crt_get_fingerprint = (
848
_library.gnutls_openpgp_crt_get_fingerprint)
849
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
850
ctypes.c_void_p,
851
ctypes.POINTER(
852
ctypes.c_size_t)]
853
openpgp_crt_get_fingerprint.restype = _error_code
854
855
if check_version(b"3.6.4"):
856
certificate_type_get2 = _library.gnutls_certificate_type_get2
857
certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]
858
certificate_type_get2.restype = _error_code
859
860
# Remove non-public functions
861
del _error_code, _retry_on_error
862
863
864
def call_pipe(connection, # : multiprocessing.Connection
865
func, *args, **kwargs):
866
"""This function is meant to be called by multiprocessing.Process
867
868
This function runs func(*args, **kwargs), and writes the resulting
869
return value on the provided multiprocessing.Connection.
870
"""
871
connection.send(func(*args, **kwargs))
872
connection.close()
873
874
875
class Client:
268
def _timedelta_to_milliseconds(td):
269
"Convert a datetime.timedelta() to milliseconds"
270
return ((td.days * 24 * 60 * 60 * 1000)
271
+ (td.seconds * 1000)
272
+ (td.microseconds // 1000))
273
274
class Client(object):
876
275
"""A representation of a client host served by this server.
877
276
878
277
Attributes:
879
approved: bool(); 'None' if not yet approved/disapproved
278
_approved: bool(); 'None' if not yet approved/disapproved
880
279
approval_delay: datetime.timedelta(); Time to wait for approval
881
280
approval_duration: datetime.timedelta(); Duration of one approval
882
checker: multiprocessing.Process(); a running checker process used
883
to see if the client lives. 'None' if no process is
884
running.
885
checker_callback_tag: a GLib event source tag, or None
281
checker: subprocess.Popen(); a running checker process used
282
to see if the client lives.
283
'None' if no process is running.
284
checker_callback_tag: a gobject event source tag, or None
886
285
checker_command: string; External command which is run to check
887
286
if client lives. %() expansions are done at
888
287
runtime with vars(self) as dict, so that for
889
288
instance %(name)s can be used in the command.
890
checker_initiator_tag: a GLib event source tag, or None
289
checker_initiator_tag: a gobject event source tag, or None
891
290
created: datetime.datetime(); (UTC) object creation
892
client_structure: Object describing what attributes a client has
893
and is used for storing the client at exit
894
291
current_checker_command: string; current running checker_command
895
disable_initiator_tag: a GLib event source tag, or None
292
disable_hook: If set, called by disable() as disable_hook(self)
293
disable_initiator_tag: a gobject event source tag, or None
896
294
enabled: bool()
897
295
fingerprint: string (40 or 32 hexadecimal digits); used to
898
uniquely identify an OpenPGP client
899
key_id: string (64 hexadecimal digits); used to uniquely identify
900
a client using raw public keys
296
uniquely identify the client
901
297
host: string; available for use by the checker command
902
298
interval: datetime.timedelta(); How often to start a new checker
903
299
last_approval_request: datetime.datetime(); (UTC) or None
904
300
last_checked_ok: datetime.datetime(); (UTC) or None
905
last_checker_status: integer between 0 and 255 reflecting exit
906
status of last checker. -1 reflects crashed
907
checker, -2 means no checker completed yet.
908
last_checker_signal: The signal which killed the last checker, if
909
last_checker_status is -1
910
last_enabled: datetime.datetime(); (UTC) or None
301
last_enabled: datetime.datetime(); (UTC)
911
302
name: string; from the config file, used in log messages and
912
303
D-Bus identifiers
913
304
secret: bytestring; sent verbatim (over TLS) to client
914
305
timeout: datetime.timedelta(); How long from last_checked_ok
915
306
until this client is disabled
916
extended_timeout: extra long timeout when secret has been sent
307
extended_timeout: extra long timeout when password has been sent
917
308
runtime_expansions: Allowed attributes for runtime expansion.
918
309
expires: datetime.datetime(); time (UTC) when a client will be
919
310
disabled, or None
920
server_settings: The server_settings dict from main()
921
311
"""
922
312
923
313
runtime_expansions = ("approval_delay", "approval_duration",
924
"created", "enabled", "expires", "key_id",
925
"fingerprint", "host", "interval",
926
"last_approval_request", "last_checked_ok",
314
"created", "enabled", "fingerprint",
315
"host", "interval", "last_checked_ok",
927
316
"last_enabled", "name", "timeout")
928
client_defaults = {
929
"timeout": "PT5M",
930
"extended_timeout": "PT15M",
931
"interval": "PT2M",
932
"checker": "fping -q -- %%(host)s",
933
"host": "",
934
"approval_delay": "PT0S",
935
"approval_duration": "PT1S",
936
"approved_by_default": "True",
937
"enabled": "True",
938
}
939
940
@staticmethod
941
def config_parser(config):
942
"""Construct a new dict of client settings of this form:
943
{ client_name: {setting_name: value, ...}, ...}
944
with exceptions for any special settings as defined above.
945
NOTE: Must be a pure function. Must return the same result
946
value given the same arguments.
947
"""
948
settings = {}
949
for client_name in config.sections():
950
section = dict(config.items(client_name))
951
client = settings[client_name] = {}
952
953
client["host"] = section["host"]
954
# Reformat values from string types to Python types
955
client["approved_by_default"] = config.getboolean(
956
client_name, "approved_by_default")
957
client["enabled"] = config.getboolean(client_name,
958
"enabled")
959
960
# Uppercase and remove spaces from key_id and fingerprint
961
# for later comparison purposes with return value from the
962
# key_id() and fingerprint() functions
963
client["key_id"] = (section.get("key_id", "").upper()
964
.replace(" ", ""))
965
client["fingerprint"] = (section["fingerprint"].upper()
966
.replace(" ", ""))
967
if "secret" in section:
968
client["secret"] = codecs.decode(section["secret"]
969
.encode("utf-8"),
970
"base64")
971
elif "secfile" in section:
972
with open(os.path.expanduser(os.path.expandvars
973
(section["secfile"])),
974
"rb") as secfile:
975
client["secret"] = secfile.read()
976
else:
977
raise TypeError("No secret or secfile for section {}"
978
.format(section))
979
client["timeout"] = string_to_delta(section["timeout"])
980
client["extended_timeout"] = string_to_delta(
981
section["extended_timeout"])
982
client["interval"] = string_to_delta(section["interval"])
983
client["approval_delay"] = string_to_delta(
984
section["approval_delay"])
985
client["approval_duration"] = string_to_delta(
986
section["approval_duration"])
987
client["checker_command"] = section["checker"]
988
client["last_approval_request"] = None
989
client["last_checked_ok"] = None
990
client["last_checker_status"] = -2
991
992
return settings
993
994
def __init__(self, settings, name=None, server_settings=None):
317
318
def timeout_milliseconds(self):
319
"Return the 'timeout' attribute in milliseconds"
320
return _timedelta_to_milliseconds(self.timeout)
321
322
def extended_timeout_milliseconds(self):
323
"Return the 'extended_timeout' attribute in milliseconds"
324
return _timedelta_to_milliseconds(self.extended_timeout)
325
326
def interval_milliseconds(self):
327
"Return the 'interval' attribute in milliseconds"
328
return _timedelta_to_milliseconds(self.interval)
329
330
def approval_delay_milliseconds(self):
331
return _timedelta_to_milliseconds(self.approval_delay)
332
333
def __init__(self, name = None, disable_hook=None, config=None):
334
"""Note: the 'checker' key in 'config' sets the
335
'checker_command' attribute and *not* the 'checker'
336
attribute."""
995
337
self.name = name
996
if server_settings is None:
997
server_settings = {}
998
self.server_settings = server_settings
999
# adding all client settings
1000
for setting, value in settings.items():
1001
setattr(self, setting, value)
1002
1003
if self.enabled:
1004
if not hasattr(self, "last_enabled"):
1005
self.last_enabled = datetime.datetime.utcnow()
1006
if not hasattr(self, "expires"):
1007
self.expires = (datetime.datetime.utcnow()
1008
+ self.timeout)
1009
else:
1010
self.last_enabled = None
1011
self.expires = None
1012
338
if config is None:
339
config = {}
1013
340
logger.debug("Creating client %r", self.name)
1014
logger.debug(" Key ID: %s", self.key_id)
341
# Uppercase and remove spaces from fingerprint for later
342
# comparison purposes with return value from the fingerprint()
343
# function
344
self.fingerprint = (config["fingerprint"].upper()
345
.replace(" ", ""))
1015
346
logger.debug(" Fingerprint: %s", self.fingerprint)
1016
self.created = settings.get("created",
1017
datetime.datetime.utcnow())
1018
1019
# attributes specific for this server instance
347
if "secret" in config:
348
self.secret = config["secret"].decode("base64")
349
elif "secfile" in config:
350
with open(os.path.expanduser(os.path.expandvars
351
(config["secfile"])),
352
"rb") as secfile:
353
self.secret = secfile.read()
354
else:
355
raise TypeError("No secret or secfile for client %s"
356
% self.name)
357
self.host = config.get("host", "")
358
self.created = datetime.datetime.utcnow()
359
self.enabled = False
360
self.last_approval_request = None
361
self.last_enabled = None
362
self.last_checked_ok = None
363
self.timeout = string_to_delta(config["timeout"])
364
self.extended_timeout = string_to_delta(config["extended_timeout"])
365
self.interval = string_to_delta(config["interval"])
366
self.disable_hook = disable_hook
1020
367
self.checker = None
1021
368
self.checker_initiator_tag = None
1022
369
self.disable_initiator_tag = None
370
self.expires = None
1023
371
self.checker_callback_tag = None
372
self.checker_command = config["checker"]
1024
373
self.current_checker_command = None
1025
self.approved = None
374
self.last_connect = None
375
self._approved = None
376
self.approved_by_default = config.get("approved_by_default",
377
True)
1026
378
self.approvals_pending = 0
1027
self.changedstate = multiprocessing_manager.Condition(
1028
multiprocessing_manager.Lock())
1029
self.client_structure = [attr
1030
for attr in self.__dict__.keys()
1031
if not attr.startswith("_")]
1032
self.client_structure.append("client_structure")
1033
1034
for name, t in inspect.getmembers(
1035
type(self), lambda obj: isinstance(obj, property)):
1036
if not name.startswith("_"):
1037
self.client_structure.append(name)
1038
1039
# Send notice to process children that client state has changed
379
self.approval_delay = string_to_delta(
380
config["approval_delay"])
381
self.approval_duration = string_to_delta(
382
config["approval_duration"])
383
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
384
1040
385
def send_changedstate(self):
1041
with self.changedstate:
1042
self.changedstate.notify_all()
1043
386
self.changedstate.acquire()
387
self.changedstate.notify_all()
388
self.changedstate.release()
389
1044
390
def enable(self):
1045
391
"""Start this client's checker and timeout hooks"""
1046
392
if getattr(self, "enabled", False):
1047
393
# Already enabled
1048
394
return
395
self.send_changedstate()
396
# Schedule a new checker to be started an 'interval' from now,
397
# and every interval from then on.
398
self.checker_initiator_tag = (gobject.timeout_add
399
(self.interval_milliseconds(),
400
self.start_checker))
401
# Schedule a disable() when 'timeout' has passed
1049
402
self.expires = datetime.datetime.utcnow() + self.timeout
403
self.disable_initiator_tag = (gobject.timeout_add
404
(self.timeout_milliseconds(),
405
self.disable))
1050
406
self.enabled = True
1051
407
self.last_enabled = datetime.datetime.utcnow()
1052
self.init_checker()
1053
self.send_changedstate()
1054
408
# Also start a new checker *right now*.
409
self.start_checker()
410
1055
411
def disable(self, quiet=True):
1056
412
"""Disable this client."""
1057
413
if not getattr(self, "enabled", False):
1058
414
return False
1059
415
if not quiet:
416
self.send_changedstate()
417
if not quiet:
1060
418
logger.info("Disabling client %s", self.name)
1061
if getattr(self, "disable_initiator_tag", None) is not None:
1062
GLib.source_remove(self.disable_initiator_tag)
419
if getattr(self, "disable_initiator_tag", False):
420
gobject.source_remove(self.disable_initiator_tag)
1063
421
self.disable_initiator_tag = None
1064
422
self.expires = None
1065
if getattr(self, "checker_initiator_tag", None) is not None:
1066
GLib.source_remove(self.checker_initiator_tag)
423
if getattr(self, "checker_initiator_tag", False):
424
gobject.source_remove(self.checker_initiator_tag)
1067
425
self.checker_initiator_tag = None
1068
426
self.stop_checker()
427
if self.disable_hook:
428
self.disable_hook(self)
1069
429
self.enabled = False
1070
if not quiet:
1071
self.send_changedstate()
1072
# Do not run this again if called by a GLib.timeout_add
430
# Do not run this again if called by a gobject.timeout_add
1073
431
return False
1074
432
1075
433
def __del__(self):
434
self.disable_hook = None
1076
435
self.disable()
1077
1078
def init_checker(self):
1079
# Schedule a new checker to be started an 'interval' from now,
1080
# and every interval from then on.
1081
if self.checker_initiator_tag is not None:
1082
GLib.source_remove(self.checker_initiator_tag)
1083
self.checker_initiator_tag = GLib.timeout_add(
1084
random.randrange(int(self.interval.total_seconds() * 1000
1085
+ 1)),
1086
self.start_checker)
1087
# Schedule a disable() when 'timeout' has passed
1088
if self.disable_initiator_tag is not None:
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(self.timeout.total_seconds() * 1000), self.disable)
1092
# Also start a new checker *right now*.
1093
self.start_checker()
1094
1095
def checker_callback(self, source, condition, connection,
1096
command):
436
437
def checker_callback(self, pid, condition, command):
1097
438
"""The checker has completed, so take appropriate actions."""
1098
# Read return code from connection (see call_pipe)
1099
returncode = connection.recv()
1100
connection.close()
1101
if self.checker is not None:
1102
self.checker.join()
1103
439
self.checker_callback_tag = None
1104
440
self.checker = None
1105
1106
if returncode >= 0:
1107
self.last_checker_status = returncode
1108
self.last_checker_signal = None
1109
if self.last_checker_status == 0:
441
if os.WIFEXITED(condition):
442
exitstatus = os.WEXITSTATUS(condition)
443
if exitstatus == 0:
1110
444
logger.info("Checker for %(name)s succeeded",
1111
445
vars(self))
1112
446
self.checked_ok()
1113
447
else:
1114
logger.info("Checker for %(name)s failed", vars(self))
448
logger.info("Checker for %(name)s failed",
449
vars(self))
1115
450
else:
1116
self.last_checker_status = -1
1117
self.last_checker_signal = -returncode
1118
451
logger.warning("Checker for %(name)s crashed?",
1119
452
vars(self))
1120
return False
1121
1122
def checked_ok(self):
1123
"""Assert that the client has been seen, alive and well."""
1124
self.last_checked_ok = datetime.datetime.utcnow()
1125
self.last_checker_status = 0
1126
self.last_checker_signal = None
1127
self.bump_timeout()
1128
1129
def bump_timeout(self, timeout=None):
1130
"""Bump up the timeout for this client."""
453
454
def checked_ok(self, timeout=None):
455
"""Bump up the timeout for this client.
456
457
This should only be called when the client has been seen,
458
alive and well.
459
"""
1131
460
if timeout is None:
1132
461
timeout = self.timeout
1133
if self.disable_initiator_tag is not None:
1134
GLib.source_remove(self.disable_initiator_tag)
1135
self.disable_initiator_tag = None
1136
if getattr(self, "enabled", False):
1137
self.disable_initiator_tag = GLib.timeout_add(
1138
int(timeout.total_seconds() * 1000), self.disable)
1139
self.expires = datetime.datetime.utcnow() + timeout
1140
462
self.last_checked_ok = datetime.datetime.utcnow()
463
gobject.source_remove(self.disable_initiator_tag)
464
self.expires = datetime.datetime.utcnow() + timeout
465
self.disable_initiator_tag = (gobject.timeout_add
466
(_timedelta_to_milliseconds(timeout),
467
self.disable))
468
1141
469
def need_approval(self):
1142
470
self.last_approval_request = datetime.datetime.utcnow()
1143
471
1144
472
def start_checker(self):
1145
473
"""Start a new checker subprocess if one is not running.
1146
474
1147
475
If a checker already exists, leave it running and do
1148
476
nothing."""
1149
477
# The reason for not killing a running checker is that if we
1150
# did that, and if a checker (for some reason) started running
1151
# slowly and taking more than 'interval' time, then the client
1152
# would inevitably timeout, since no checker would get a
1153
# chance to run to completion. If we instead leave running
478
# did that, then if a checker (for some reason) started
479
# running slowly and taking more than 'interval' time, the
480
# client would inevitably timeout, since no checker would get
481
# a chance to run to completion. If we instead leave running
1154
482
# checkers alone, the checker would have to take more time
1155
483
# than 'timeout' for the client to be disabled, which is as it
1156
484
# should be.
1157
1158
if self.checker is not None and not self.checker.is_alive():
1159
logger.warning("Checker was not alive; joining")
1160
self.checker.join()
1161
self.checker = None
485
486
# If a checker exists, make sure it is not a zombie
487
try:
488
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
489
except (AttributeError, OSError) as error:
490
if (isinstance(error, OSError)
491
and error.errno != errno.ECHILD):
492
raise error
493
else:
494
if pid:
495
logger.warning("Checker was a zombie")
496
gobject.source_remove(self.checker_callback_tag)
497
self.checker_callback(pid, status,
498
self.current_checker_command)
1162
499
# Start a new checker if needed
1163
500
if self.checker is None:
1164
# Escape attributes for the shell
1165
escaped_attrs = {
1166
attr: shlex.quote(str(getattr(self, attr)))
1167
for attr in self.runtime_expansions}
1168
501
try:
1169
command = self.checker_command % escaped_attrs
1170
except TypeError as error:
1171
logger.error('Could not format string "%s"',
1172
self.checker_command,
1173
exc_info=error)
1174
return True # Try again later
502
# In case checker_command has exactly one % operator
503
command = self.checker_command % self.host
504
except TypeError:
505
# Escape attributes for the shell
506
escaped_attrs = dict(
507
(attr,
508
re.escape(unicode(str(getattr(self, attr, "")),
509
errors=
510
'replace')))
511
for attr in
512
self.runtime_expansions)
513
514
try:
515
command = self.checker_command % escaped_attrs
516
except TypeError as error:
517
logger.error('Could not format string "%s":'
518
' %s', self.checker_command, error)
519
return True # Try again later
1175
520
self.current_checker_command = command
1176
logger.info("Starting checker %r for %s", command,
1177
self.name)
1178
# We don't need to redirect stdout and stderr, since
1179
# in normal mode, that is already done by daemon(),
1180
# and in debug mode we don't want to. (Stdin is
1181
# always replaced by /dev/null.)
1182
# The exception is when not debugging but nevertheless
1183
# running in the foreground; use the previously
1184
# created wnull.
1185
popen_args = {"close_fds": True,
1186
"shell": True,
1187
"cwd": "/"}
1188
if (not self.server_settings["debug"]
1189
and self.server_settings["foreground"]):
1190
popen_args.update({"stdout": wnull,
1191
"stderr": wnull})
1192
pipe = multiprocessing.Pipe(duplex=False)
1193
self.checker = multiprocessing.Process(
1194
target=call_pipe,
1195
args=(pipe[1], subprocess.call, command),
1196
kwargs=popen_args)
1197
self.checker.start()
1198
self.checker_callback_tag = GLib.io_add_watch(
1199
GLib.IOChannel.unix_new(pipe[0].fileno()),
1200
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1201
self.checker_callback, pipe[0], command)
1202
# Re-run this periodically if run by GLib.timeout_add
521
try:
522
logger.info("Starting checker %r for %s",
523
command, self.name)
524
# We don't need to redirect stdout and stderr, since
525
# in normal mode, that is already done by daemon(),
526
# and in debug mode we don't want to. (Stdin is
527
# always replaced by /dev/null.)
528
self.checker = subprocess.Popen(command,
529
close_fds=True,
530
shell=True, cwd="/")
531
self.checker_callback_tag = (gobject.child_watch_add
532
(self.checker.pid,
533
self.checker_callback,
534
data=command))
535
# The checker may have completed before the gobject
536
# watch was added. Check for this.
537
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
538
if pid:
539
gobject.source_remove(self.checker_callback_tag)
540
self.checker_callback(pid, status, command)
541
except OSError as error:
542
logger.error("Failed to start subprocess: %s",
543
error)
544
# Re-run this periodically if run by gobject.timeout_add
1203
545
return True
1204
546
1205
547
def stop_checker(self):
1206
548
"""Force the checker process, if any, to stop."""
1207
549
if self.checker_callback_tag:
1208
GLib.source_remove(self.checker_callback_tag)
550
gobject.source_remove(self.checker_callback_tag)
1209
551
self.checker_callback_tag = None
1210
552
if getattr(self, "checker", None) is None:
1211
553
return
1212
554
logger.debug("Stopping checker for %(name)s", vars(self))
1213
self.checker.terminate()
555
try:
556
os.kill(self.checker.pid, signal.SIGTERM)
557
#time.sleep(0.5)
558
#if self.checker.poll() is None:
559
# os.kill(self.checker.pid, signal.SIGKILL)
560
except OSError as error:
561
if error.errno != errno.ESRCH: # No such process
562
raise
1214
563
self.checker = None
1215
564
1216
565
1217
def dbus_service_property(dbus_interface,
1218
signature="v",
1219
access="readwrite",
1220
byte_arrays=False):
566
def dbus_service_property(dbus_interface, signature="v",
567
access="readwrite", byte_arrays=False):
1221
568
"""Decorators for marking methods of a DBusObjectWithProperties to
1222
569
become properties on the D-Bus.
1223
570
1224
571
The decorated method will be called with no arguments by "Get"
1225
572
and with one argument by "Set".
1226
573
1227
574
The parameters, where they are supported, are the same as
1228
575
dbus.service.method, except there is only "signature", since the
1229
576
type from Get() and the type sent to Set() is the same.
1232
579
# "Set" method, so we fail early here:
1233
580
if byte_arrays and signature != "ay":
1234
581
raise ValueError("Byte arrays not supported for non-'ay'"
1235
" signature {!r}".format(signature))
1236
582
" signature %r" % signature)
1237
583
def decorator(func):
1238
584
func._dbus_is_property = True
1239
585
func._dbus_interface = dbus_interface
1242
588
func._dbus_name = func.__name__
1243
589
if func._dbus_name.endswith("_dbus_property"):
1244
590
func._dbus_name = func._dbus_name[:-14]
1245
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1246
return func
1247
1248
return decorator
1249
1250
1251
def dbus_interface_annotations(dbus_interface):
1252
"""Decorator for marking functions returning interface annotations
1253
1254
Usage:
1255
1256
@dbus_interface_annotations("org.example.Interface")
1257
def _foo(self): # Function name does not matter
1258
return {"org.freedesktop.DBus.Deprecated": "true",
1259
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1260
"false"}
1261
"""
1262
1263
def decorator(func):
1264
func._dbus_is_interface = True
1265
func._dbus_interface = dbus_interface
1266
func._dbus_name = dbus_interface
1267
return func
1268
1269
return decorator
1270
1271
1272
def dbus_annotations(annotations):
1273
"""Decorator to annotate D-Bus methods, signals or properties
1274
Usage:
1275
1276
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1277
"org.freedesktop.DBus.Property."
1278
"EmitsChangedSignal": "false"})
1279
@dbus_service_property("org.example.Interface", signature="b",
1280
access="r")
1281
def Property_dbus_property(self):
1282
return dbus.Boolean(False)
1283
1284
See also the DBusObjectWithAnnotations class.
1285
"""
1286
1287
def decorator(func):
1288
func._dbus_annotations = annotations
1289
return func
1290
591
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
592
return func
1291
593
return decorator
1292
594
1293
595
1294
596
class DBusPropertyException(dbus.exceptions.DBusException):
1295
597
"""A base class for D-Bus property-related exceptions
1296
598
"""
1297
pass
599
def __unicode__(self):
600
return unicode(str(self))
1298
601
1299
602
1300
603
class DBusPropertyAccessException(DBusPropertyException):
1309
612
pass
1310
613
1311
614
1312
class DBusObjectWithAnnotations(dbus.service.Object):
1313
"""A D-Bus object with annotations.
1314
1315
Classes inheriting from this can use the dbus_annotations
1316
decorator to add annotations to methods or signals.
1317
"""
1318
1319
@staticmethod
1320
def _is_dbus_thing(thing):
1321
"""Returns a function testing if an attribute is a D-Bus thing
1322
1323
If called like _is_dbus_thing("method") it returns a function
1324
suitable for use as predicate to inspect.getmembers().
1325
"""
1326
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1327
False)
1328
1329
def _get_all_dbus_things(self, thing):
1330
"""Returns a generator of (name, attribute) pairs
1331
"""
1332
return ((getattr(athing.__get__(self), "_dbus_name", name),
1333
athing.__get__(self))
1334
for cls in self.__class__.__mro__
1335
for name, athing in
1336
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1337
1338
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1339
out_signature="s",
1340
path_keyword='object_path',
1341
connection_keyword='connection')
1342
def Introspect(self, object_path, connection):
1343
"""Overloading of standard D-Bus method.
1344
1345
Inserts annotation tags on methods and signals.
1346
"""
1347
xmlstring = dbus.service.Object.Introspect(self, object_path,
1348
connection)
1349
try:
1350
document = xml.dom.minidom.parseString(xmlstring)
1351
1352
for if_tag in document.getElementsByTagName("interface"):
1353
# Add annotation tags
1354
for typ in ("method", "signal"):
1355
for tag in if_tag.getElementsByTagName(typ):
1356
annots = dict()
1357
for name, prop in (self.
1358
_get_all_dbus_things(typ)):
1359
if (name == tag.getAttribute("name")
1360
and prop._dbus_interface
1361
== if_tag.getAttribute("name")):
1362
annots.update(getattr(
1363
prop, "_dbus_annotations", {}))
1364
for name, value in annots.items():
1365
ann_tag = document.createElement(
1366
"annotation")
1367
ann_tag.setAttribute("name", name)
1368
ann_tag.setAttribute("value", value)
1369
tag.appendChild(ann_tag)
1370
# Add interface annotation tags
1371
for annotation, value in dict(
1372
itertools.chain.from_iterable(
1373
annotations().items()
1374
for name, annotations
1375
in self._get_all_dbus_things("interface")
1376
if name == if_tag.getAttribute("name")
1377
)).items():
1378
ann_tag = document.createElement("annotation")
1379
ann_tag.setAttribute("name", annotation)
1380
ann_tag.setAttribute("value", value)
1381
if_tag.appendChild(ann_tag)
1382
# Fix argument name for the Introspect method itself
1383
if (if_tag.getAttribute("name")
1384
== dbus.INTROSPECTABLE_IFACE):
1385
for cn in if_tag.getElementsByTagName("method"):
1386
if cn.getAttribute("name") == "Introspect":
1387
for arg in cn.getElementsByTagName("arg"):
1388
if (arg.getAttribute("direction")
1389
== "out"):
1390
arg.setAttribute("name",
1391
"xml_data")
1392
xmlstring = document.toxml("utf-8")
1393
document.unlink()
1394
except (AttributeError, xml.dom.DOMException,
1395
xml.parsers.expat.ExpatError) as error:
1396
logger.error("Failed to override Introspection method",
1397
exc_info=error)
1398
return xmlstring
1399
1400
1401
class DBusObjectWithProperties(DBusObjectWithAnnotations):
615
class DBusObjectWithProperties(dbus.service.Object):
1402
616
"""A D-Bus object with properties.
1403
617
1404
618
Classes inheriting from this can use the dbus_service_property
1405
619
decorator to expose methods as D-Bus properties. It exposes the
1406
620
standard Get(), Set(), and GetAll() methods on the D-Bus.
1407
621
"""
1408
622
623
@staticmethod
624
def _is_dbus_property(obj):
625
return getattr(obj, "_dbus_is_property", False)
626
627
def _get_all_dbus_properties(self):
628
"""Returns a generator of (name, attribute) pairs
629
"""
630
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
631
for cls in self.__class__.__mro__
632
for name, prop in inspect.getmembers(cls, self._is_dbus_property))
633
1409
634
def _get_dbus_property(self, interface_name, property_name):
1410
635
"""Returns a bound method if one exists which is a D-Bus
1411
636
property with the specified name and interface.
1412
637
"""
1413
for cls in self.__class__.__mro__:
1414
for name, value in inspect.getmembers(
1415
cls, self._is_dbus_thing("property")):
1416
if (value._dbus_name == property_name
1417
and value._dbus_interface == interface_name):
638
for cls in self.__class__.__mro__:
639
for name, value in inspect.getmembers(cls, self._is_dbus_property):
640
if value._dbus_name == property_name and value._dbus_interface == interface_name:
1418
641
return value.__get__(self)
1419
642
1420
643
# No such property
1421
raise DBusPropertyNotFound("{}:{}.{}".format(
1422
self.dbus_object_path, interface_name, property_name))
1423
1424
@classmethod
1425
def _get_all_interface_names(cls):
1426
"""Get a sequence of all interfaces supported by an object"""
1427
return (name for name in set(getattr(getattr(x, attr),
1428
"_dbus_interface", None)
1429
for x in (inspect.getmro(cls))
1430
for attr in dir(x))
1431
if name is not None)
1432
1433
@dbus.service.method(dbus.PROPERTIES_IFACE,
1434
in_signature="ss",
644
raise DBusPropertyNotFound(self.dbus_object_path + ":"
645
+ interface_name + "."
646
+ property_name)
647
648
649
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1435
650
out_signature="v")
1436
651
def Get(self, interface_name, property_name):
1437
652
"""Standard D-Bus property Get() method, see D-Bus standard.
1443
658
if not hasattr(value, "variant_level"):
1444
659
return value
1445
660
return type(value)(value, variant_level=value.variant_level+1)
1446
661
1447
662
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1448
663
def Set(self, interface_name, property_name, value):
1449
664
"""Standard D-Bus property Set() method, see D-Bus standard.
1455
670
# The byte_arrays option is not supported yet on
1456
671
# signatures other than "ay".
1457
672
if prop._dbus_signature != "ay":
1458
raise ValueError("Byte arrays not supported for non-"
1459
"'ay' signature {!r}"
1460
.format(prop._dbus_signature))
1461
value = dbus.ByteArray(bytes(value))
673
raise ValueError
674
value = dbus.ByteArray(''.join(unichr(byte)
675
for byte in value))
1462
676
prop(value)
1463
1464
@dbus.service.method(dbus.PROPERTIES_IFACE,
1465
in_signature="s",
677
678
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1466
679
out_signature="a{sv}")
1467
680
def GetAll(self, interface_name):
1468
681
"""Standard D-Bus property GetAll() method, see D-Bus
1469
682
standard.
1470
683
1471
684
Note: Will not include properties with access="write".
1472
685
"""
1473
properties = {}
1474
for name, prop in self._get_all_dbus_things("property"):
686
all = {}
687
for name, prop in self._get_all_dbus_properties():
1475
688
if (interface_name
1476
689
and interface_name != prop._dbus_interface):
1477
690
# Interface non-empty but did not match
1481
694
continue
1482
695
value = prop()
1483
696
if not hasattr(value, "variant_level"):
1484
properties[name] = value
697
all[name] = value
1485
698
continue
1486
properties[name] = type(value)(
1487
value, variant_level=value.variant_level + 1)
1488
return dbus.Dictionary(properties, signature="sv")
1489
1490
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1491
def PropertiesChanged(self, interface_name, changed_properties,
1492
invalidated_properties):
1493
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1494
standard.
1495
"""
1496
pass
1497
699
all[name] = type(value)(value, variant_level=
700
value.variant_level+1)
701
return dbus.Dictionary(all, signature="sv")
702
1498
703
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1499
704
out_signature="s",
1500
705
path_keyword='object_path',
1501
706
connection_keyword='connection')
1502
707
def Introspect(self, object_path, connection):
1503
"""Overloading of standard D-Bus method.
1504
1505
Inserts property tags and interface annotation tags.
708
"""Standard D-Bus method, overloaded to insert property tags.
1506
709
"""
1507
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1508
object_path,
1509
connection)
710
xmlstring = dbus.service.Object.Introspect(self, object_path,
711
connection)
1510
712
try:
1511
713
document = xml.dom.minidom.parseString(xmlstring)
1512
1513
714
def make_tag(document, name, prop):
1514
715
e = document.createElement("property")
1515
716
e.setAttribute("name", name)
1516
717
e.setAttribute("type", prop._dbus_signature)
1517
718
e.setAttribute("access", prop._dbus_access)
1518
719
return e
1519
1520
720
for if_tag in document.getElementsByTagName("interface"):
1521
# Add property tags
1522
721
for tag in (make_tag(document, name, prop)
1523
722
for name, prop
1524
in self._get_all_dbus_things("property")
723
in self._get_all_dbus_properties()
1525
724
if prop._dbus_interface
1526
725
== if_tag.getAttribute("name")):
1527
726
if_tag.appendChild(tag)
1528
# Add annotation tags for properties
1529
for tag in if_tag.getElementsByTagName("property"):
1530
annots = dict()
1531
for name, prop in self._get_all_dbus_things(
1532
"property"):
1533
if (name == tag.getAttribute("name")
1534
and prop._dbus_interface
1535
== if_tag.getAttribute("name")):
1536
annots.update(getattr(
1537
prop, "_dbus_annotations", {}))
1538
for name, value in annots.items():
1539
ann_tag = document.createElement(
1540
"annotation")
1541
ann_tag.setAttribute("name", name)
1542
ann_tag.setAttribute("value", value)
1543
tag.appendChild(ann_tag)
1544
727
# Add the names to the return values for the
1545
728
# "org.freedesktop.DBus.Properties" methods
1546
729
if (if_tag.getAttribute("name")
1561
744
except (AttributeError, xml.dom.DOMException,
1562
745
xml.parsers.expat.ExpatError) as error:
1563
746
logger.error("Failed to override Introspection method",
1564
exc_info=error)
1565
return xmlstring
1566
1567
1568
try:
1569
dbus.OBJECT_MANAGER_IFACE
1570
except AttributeError:
1571
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1572
1573
1574
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1575
"""A D-Bus object with an ObjectManager.
1576
1577
Classes inheriting from this exposes the standard
1578
GetManagedObjects call and the InterfacesAdded and
1579
InterfacesRemoved signals on the standard
1580
"org.freedesktop.DBus.ObjectManager" interface.
1581
1582
Note: No signals are sent automatically; they must be sent
1583
manually.
1584
"""
1585
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1586
out_signature="a{oa{sa{sv}}}")
1587
def GetManagedObjects(self):
1588
"""This function must be overridden"""
1589
raise NotImplementedError()
1590
1591
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1592
signature="oa{sa{sv}}")
1593
def InterfacesAdded(self, object_path, interfaces_and_properties):
1594
pass
1595
1596
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1597
def InterfacesRemoved(self, object_path, interfaces):
1598
pass
1599
1600
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1601
out_signature="s",
1602
path_keyword='object_path',
1603
connection_keyword='connection')
1604
def Introspect(self, object_path, connection):
1605
"""Overloading of standard D-Bus method.
1606
1607
Override return argument name of GetManagedObjects to be
1608
"objpath_interfaces_and_properties"
1609
"""
1610
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1611
object_path,
1612
connection)
1613
try:
1614
document = xml.dom.minidom.parseString(xmlstring)
1615
1616
for if_tag in document.getElementsByTagName("interface"):
1617
# Fix argument name for the GetManagedObjects method
1618
if (if_tag.getAttribute("name")
1619
== dbus.OBJECT_MANAGER_IFACE):
1620
for cn in if_tag.getElementsByTagName("method"):
1621
if (cn.getAttribute("name")
1622
== "GetManagedObjects"):
1623
for arg in cn.getElementsByTagName("arg"):
1624
if (arg.getAttribute("direction")
1625
== "out"):
1626
arg.setAttribute(
1627
"name",
1628
"objpath_interfaces"
1629
"_and_properties")
1630
xmlstring = document.toxml("utf-8")
1631
document.unlink()
1632
except (AttributeError, xml.dom.DOMException,
1633
xml.parsers.expat.ExpatError) as error:
1634
logger.error("Failed to override Introspection method",
1635
exc_info=error)
1636
return xmlstring
1637
1638
1639
def datetime_to_dbus(dt, variant_level=0):
747
error)
748
return xmlstring
749
750
751
def datetime_to_dbus (dt, variant_level=0):
1640
752
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1641
753
if dt is None:
1642
return dbus.String("", variant_level=variant_level)
1643
return dbus.String(dt.isoformat(), variant_level=variant_level)
1644
1645
1646
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1647
"""A class decorator; applied to a subclass of
1648
dbus.service.Object, it will add alternate D-Bus attributes with
1649
interface names according to the "alt_interface_names" mapping.
1650
Usage:
1651
1652
@alternate_dbus_interfaces({"org.example.Interface":
1653
"net.example.AlternateInterface"})
1654
class SampleDBusObject(dbus.service.Object):
1655
@dbus.service.method("org.example.Interface")
1656
def SampleDBusMethod():
1657
pass
1658
1659
The above "SampleDBusMethod" on "SampleDBusObject" will be
1660
reachable via two interfaces: "org.example.Interface" and
1661
"net.example.AlternateInterface", the latter of which will have
1662
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1663
"true", unless "deprecate" is passed with a False value.
1664
1665
This works for methods and signals, and also for D-Bus properties
1666
(from DBusObjectWithProperties) and interfaces (from the
1667
dbus_interface_annotations decorator).
1668
"""
1669
1670
def wrapper(cls):
1671
for orig_interface_name, alt_interface_name in (
1672
alt_interface_names.items()):
1673
attr = {}
1674
interface_names = set()
1675
# Go though all attributes of the class
1676
for attrname, attribute in inspect.getmembers(cls):
1677
# Ignore non-D-Bus attributes, and D-Bus attributes
1678
# with the wrong interface name
1679
if (not hasattr(attribute, "_dbus_interface")
1680
or not attribute._dbus_interface.startswith(
1681
orig_interface_name)):
1682
continue
1683
# Create an alternate D-Bus interface name based on
1684
# the current name
1685
alt_interface = attribute._dbus_interface.replace(
1686
orig_interface_name, alt_interface_name)
1687
interface_names.add(alt_interface)
1688
# Is this a D-Bus signal?
1689
if getattr(attribute, "_dbus_is_signal", False):
1690
# Extract the original non-method undecorated
1691
# function by black magic
1692
if sys.version_info.major == 2:
1693
nonmethod_func = (dict(
1694
zip(attribute.func_code.co_freevars,
1695
attribute.__closure__))
1696
["func"].cell_contents)
1697
else:
1698
nonmethod_func = (dict(
1699
zip(attribute.__code__.co_freevars,
1700
attribute.__closure__))
1701
["func"].cell_contents)
1702
# Create a new, but exactly alike, function
1703
# object, and decorate it to be a new D-Bus signal
1704
# with the alternate D-Bus interface name
1705
new_function = copy_function(nonmethod_func)
1706
new_function = (dbus.service.signal(
1707
alt_interface,
1708
attribute._dbus_signature)(new_function))
1709
# Copy annotations, if any
1710
try:
1711
new_function._dbus_annotations = dict(
1712
attribute._dbus_annotations)
1713
except AttributeError:
1714
pass
1715
1716
# Define a creator of a function to call both the
1717
# original and alternate functions, so both the
1718
# original and alternate signals gets sent when
1719
# the function is called
1720
def fixscope(func1, func2):
1721
"""This function is a scope container to pass
1722
func1 and func2 to the "call_both" function
1723
outside of its arguments"""
1724
1725
@functools.wraps(func2)
1726
def call_both(*args, **kwargs):
1727
"""This function will emit two D-Bus
1728
signals by calling func1 and func2"""
1729
func1(*args, **kwargs)
1730
func2(*args, **kwargs)
1731
# Make wrapper function look like a D-Bus
1732
# signal
1733
for name, attr in inspect.getmembers(func2):
1734
if name.startswith("_dbus_"):
1735
setattr(call_both, name, attr)
1736
1737
return call_both
1738
# Create the "call_both" function and add it to
1739
# the class
1740
attr[attrname] = fixscope(attribute, new_function)
1741
# Is this a D-Bus method?
1742
elif getattr(attribute, "_dbus_is_method", False):
1743
# Create a new, but exactly alike, function
1744
# object. Decorate it to be a new D-Bus method
1745
# with the alternate D-Bus interface name. Add it
1746
# to the class.
1747
attr[attrname] = (
1748
dbus.service.method(
1749
alt_interface,
1750
attribute._dbus_in_signature,
1751
attribute._dbus_out_signature)
1752
(copy_function(attribute)))
1753
# Copy annotations, if any
1754
try:
1755
attr[attrname]._dbus_annotations = dict(
1756
attribute._dbus_annotations)
1757
except AttributeError:
1758
pass
1759
# Is this a D-Bus property?
1760
elif getattr(attribute, "_dbus_is_property", False):
1761
# Create a new, but exactly alike, function
1762
# object, and decorate it to be a new D-Bus
1763
# property with the alternate D-Bus interface
1764
# name. Add it to the class.
1765
attr[attrname] = (dbus_service_property(
1766
alt_interface, attribute._dbus_signature,
1767
attribute._dbus_access,
1768
attribute._dbus_get_args_options
1769
["byte_arrays"])
1770
(copy_function(attribute)))
1771
# Copy annotations, if any
1772
try:
1773
attr[attrname]._dbus_annotations = dict(
1774
attribute._dbus_annotations)
1775
except AttributeError:
1776
pass
1777
# Is this a D-Bus interface?
1778
elif getattr(attribute, "_dbus_is_interface", False):
1779
# Create a new, but exactly alike, function
1780
# object. Decorate it to be a new D-Bus interface
1781
# with the alternate D-Bus interface name. Add it
1782
# to the class.
1783
attr[attrname] = (
1784
dbus_interface_annotations(alt_interface)
1785
(copy_function(attribute)))
1786
if deprecate:
1787
# Deprecate all alternate interfaces
1788
iname = "_AlternateDBusNames_interface_annotation{}"
1789
for interface_name in interface_names:
1790
1791
@dbus_interface_annotations(interface_name)
1792
def func(self):
1793
return {"org.freedesktop.DBus.Deprecated":
1794
"true"}
1795
# Find an unused name
1796
for aname in (iname.format(i)
1797
for i in itertools.count()):
1798
if aname not in attr:
1799
attr[aname] = func
1800
break
1801
if interface_names:
1802
# Replace the class with a new subclass of it with
1803
# methods, signals, etc. as created above.
1804
if sys.version_info.major == 2:
1805
cls = type(b"{}Alternate".format(cls.__name__),
1806
(cls, ), attr)
1807
else:
1808
cls = type("{}Alternate".format(cls.__name__),
1809
(cls, ), attr)
1810
return cls
1811
1812
return wrapper
1813
1814
1815
@alternate_dbus_interfaces({"se.recompile.Mandos":
1816
"se.bsnet.fukt.Mandos"})
754
return dbus.String("", variant_level = variant_level)
755
return dbus.String(dt.isoformat(),
756
variant_level=variant_level)
757
758
class transitional_dbus_metaclass(DBusObjectWithProperties.__metaclass__):
759
def __new__(mcs, name, bases, attr):
760
for attrname, old_dbusobj in inspect.getmembers(bases[0]):
761
new_interface = getattr(old_dbusobj, "_dbus_interface", "").replace("se.bsnet.fukt.", "se.recompile.")
762
if (getattr(old_dbusobj, "_dbus_is_signal", False)
763
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
764
unwrappedfunc = dict(zip(old_dbusobj.func_code.co_freevars,
765
old_dbusobj.__closure__))["func"].cell_contents
766
newfunc = types.FunctionType(unwrappedfunc.func_code,
767
unwrappedfunc.func_globals,
768
unwrappedfunc.func_name,
769
unwrappedfunc.func_defaults,
770
unwrappedfunc.func_closure)
771
new_dbusfunc = dbus.service.signal(
772
new_interface, old_dbusobj._dbus_signature)(newfunc)
773
attr["_transitional_" + attrname] = new_dbusfunc
774
775
def fixscope(func1, func2):
776
def newcall(*args, **kwargs):
777
func1(*args, **kwargs)
778
func2(*args, **kwargs)
779
return newcall
780
781
attr[attrname] = fixscope(old_dbusobj, new_dbusfunc)
782
783
elif (getattr(old_dbusobj, "_dbus_is_method", False)
784
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
785
new_dbusfunc = (dbus.service.method
786
(new_interface,
787
old_dbusobj._dbus_in_signature,
788
old_dbusobj._dbus_out_signature)
789
(types.FunctionType
790
(old_dbusobj.func_code,
791
old_dbusobj.func_globals,
792
old_dbusobj.func_name,
793
old_dbusobj.func_defaults,
794
old_dbusobj.func_closure)))
795
796
attr[attrname] = new_dbusfunc
797
elif (getattr(old_dbusobj, "_dbus_is_property", False)
798
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
799
new_dbusfunc = (dbus_service_property
800
(new_interface,
801
old_dbusobj._dbus_signature,
802
old_dbusobj._dbus_access,
803
old_dbusobj._dbus_get_args_options["byte_arrays"])
804
(types.FunctionType
805
(old_dbusobj.func_code,
806
old_dbusobj.func_globals,
807
old_dbusobj.func_name,
808
old_dbusobj.func_defaults,
809
old_dbusobj.func_closure)))
810
811
attr[attrname] = new_dbusfunc
812
return type.__new__(mcs, name, bases, attr)
813
1817
814
class ClientDBus(Client, DBusObjectWithProperties):
1818
815
"""A Client class using D-Bus
1819
816
1820
817
Attributes:
1821
818
dbus_object_path: dbus.ObjectPath
1822
819
bus: dbus.SystemBus()
1823
820
"""
1824
821
1825
822
runtime_expansions = (Client.runtime_expansions
1826
+ ("dbus_object_path", ))
1827
1828
_interface = "se.recompile.Mandos.Client"
1829
823
+ ("dbus_object_path",))
824
1830
825
# dbus.service.Object doesn't use super(), so we can't either.
1831
1832
def __init__(self, bus=None, *args, **kwargs):
826
827
def __init__(self, bus = None, *args, **kwargs):
828
self._approvals_pending = 0
1833
829
self.bus = bus
1834
830
Client.__init__(self, *args, **kwargs)
1835
831
# Only now, when this client is initialized, can it show up on
1836
832
# the D-Bus
1837
client_object_name = str(self.name).translate(
833
client_object_name = unicode(self.name).translate(
1838
834
{ord("."): ord("_"),
1839
835
ord("-"): ord("_")})
1840
self.dbus_object_path = dbus.ObjectPath(
1841
"/clients/" + client_object_name)
836
self.dbus_object_path = (dbus.ObjectPath
837
("/clients/" + client_object_name))
1842
838
DBusObjectWithProperties.__init__(self, self.bus,
1843
839
self.dbus_object_path)
1844
1845
def notifychangeproperty(transform_func, dbus_name,
1846
type_func=lambda x: x,
1847
variant_level=1,
1848
invalidate_only=False,
1849
_interface=_interface):
1850
""" Modify a variable so that it's a property which announces
1851
its changes to DBus.
1852
1853
transform_fun: Function that takes a value and a variant_level
1854
and transforms it to a D-Bus type.
1855
dbus_name: D-Bus name of the variable
840
841
def notifychangeproperty(transform_func,
842
dbus_name, type_func=lambda x: x,
843
variant_level=1):
844
""" Modify a variable so that its a property that announce its
845
changes to DBus.
846
transform_fun: Function that takes a value and transform it to
847
DBus type.
848
dbus_name: DBus name of the variable
1856
849
type_func: Function that transform the value before sending it
1857
to the D-Bus. Default: no transform
1858
variant_level: D-Bus variant level. Default: 1
850
to DBus
851
variant_level: DBus variant level. default: 1
1859
852
"""
1860
attrname = "_{}".format(dbus_name)
1861
853
real_value = [None,]
1862
854
def setter(self, value):
855
old_value = real_value[0]
856
real_value[0] = value
1863
857
if hasattr(self, "dbus_object_path"):
1864
if (not hasattr(self, attrname) or
1865
type_func(getattr(self, attrname, None))
1866
!= type_func(value)):
1867
if invalidate_only:
1868
self.PropertiesChanged(
1869
_interface, dbus.Dictionary(),
1870
dbus.Array((dbus_name, )))
1871
else:
1872
dbus_value = transform_func(
1873
type_func(value),
1874
variant_level=variant_level)
1875
self.PropertyChanged(dbus.String(dbus_name),
1876
dbus_value)
1877
self.PropertiesChanged(
1878
_interface,
1879
dbus.Dictionary({dbus.String(dbus_name):
1880
dbus_value}),
1881
dbus.Array())
1882
setattr(self, attrname, value)
1883
1884
return property(lambda self: getattr(self, attrname), setter)
1885
858
if type_func(old_value) != type_func(real_value[0]):
859
dbus_value = transform_func(type_func(real_value[0]),
860
variant_level)
861
self.PropertyChanged(dbus.String(dbus_name),
862
dbus_value)
863
864
return property(lambda self: real_value[0], setter)
865
866
1886
867
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1887
868
approvals_pending = notifychangeproperty(dbus.Boolean,
1888
869
"ApprovalPending",
1889
type_func=bool)
870
type_func = bool)
1890
871
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1891
872
last_enabled = notifychangeproperty(datetime_to_dbus,
1892
873
"LastEnabled")
1893
checker = notifychangeproperty(
1894
dbus.Boolean, "CheckerRunning",
1895
type_func=lambda checker: checker is not None)
874
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
875
type_func = lambda checker: checker is not None)
1896
876
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1897
877
"LastCheckedOK")
1898
last_checker_status = notifychangeproperty(dbus.Int16,
1899
"LastCheckerStatus")
1900
last_approval_request = notifychangeproperty(
1901
datetime_to_dbus, "LastApprovalRequest")
878
last_approval_request = notifychangeproperty(datetime_to_dbus,
879
"LastApprovalRequest")
1902
880
approved_by_default = notifychangeproperty(dbus.Boolean,
1903
881
"ApprovedByDefault")
1904
approval_delay = notifychangeproperty(
1905
dbus.UInt64, "ApprovalDelay",
1906
type_func=lambda td: td.total_seconds() * 1000)
1907
approval_duration = notifychangeproperty(
1908
dbus.UInt64, "ApprovalDuration",
1909
type_func=lambda td: td.total_seconds() * 1000)
882
approval_delay = notifychangeproperty(dbus.UInt16, "ApprovalDelay",
883
type_func = _timedelta_to_milliseconds)
884
approval_duration = notifychangeproperty(dbus.UInt16, "ApprovalDuration",
885
type_func = _timedelta_to_milliseconds)
1910
886
host = notifychangeproperty(dbus.String, "Host")
1911
timeout = notifychangeproperty(
1912
dbus.UInt64, "Timeout",
1913
type_func=lambda td: td.total_seconds() * 1000)
1914
extended_timeout = notifychangeproperty(
1915
dbus.UInt64, "ExtendedTimeout",
1916
type_func=lambda td: td.total_seconds() * 1000)
1917
interval = notifychangeproperty(
1918
dbus.UInt64, "Interval",
1919
type_func=lambda td: td.total_seconds() * 1000)
887
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
888
type_func = _timedelta_to_milliseconds)
889
extended_timeout = notifychangeproperty(dbus.UInt16, "ExtendedTimeout",
890
type_func = _timedelta_to_milliseconds)
891
interval = notifychangeproperty(dbus.UInt16, "Interval",
892
type_func = _timedelta_to_milliseconds)
1920
893
checker_command = notifychangeproperty(dbus.String, "Checker")
1921
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1922
invalidate_only=True)
1923
894
1924
895
del notifychangeproperty
1925
896
1926
897
def __del__(self, *args, **kwargs):
1927
898
try:
1928
899
self.remove_from_connection()
1931
902
if hasattr(DBusObjectWithProperties, "__del__"):
1932
903
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1933
904
Client.__del__(self, *args, **kwargs)
1934
1935
def checker_callback(self, source, condition,
1936
connection, command, *args, **kwargs):
1937
ret = Client.checker_callback(self, source, condition,
1938
connection, command, *args,
1939
**kwargs)
1940
exitstatus = self.last_checker_status
1941
if exitstatus >= 0:
905
906
def checker_callback(self, pid, condition, command,
907
*args, **kwargs):
908
self.checker_callback_tag = None
909
self.checker = None
910
if os.WIFEXITED(condition):
911
exitstatus = os.WEXITSTATUS(condition)
1942
912
# Emit D-Bus signal
1943
913
self.CheckerCompleted(dbus.Int16(exitstatus),
1944
# This is specific to GNU libC
1945
dbus.Int64(exitstatus << 8),
914
dbus.Int64(condition),
1946
915
dbus.String(command))
1947
916
else:
1948
917
# Emit D-Bus signal
1949
918
self.CheckerCompleted(dbus.Int16(-1),
1950
dbus.Int64(
1951
# This is specific to GNU libC
1952
(exitstatus << 8)
1953
| self.last_checker_signal),
919
dbus.Int64(condition),
1954
920
dbus.String(command))
1955
return ret
1956
921
922
return Client.checker_callback(self, pid, condition, command,
923
*args, **kwargs)
924
1957
925
def start_checker(self, *args, **kwargs):
1958
old_checker_pid = getattr(self.checker, "pid", None)
926
old_checker = self.checker
927
if self.checker is not None:
928
old_checker_pid = self.checker.pid
929
else:
930
old_checker_pid = None
1959
931
r = Client.start_checker(self, *args, **kwargs)
1960
932
# Only if new checker process was started
1961
933
if (self.checker is not None
1963
935
# Emit D-Bus signal
1964
936
self.CheckerStarted(self.current_checker_command)
1965
937
return r
1966
938
1967
939
def _reset_approved(self):
1968
self.approved = None
940
self._approved = None
1969
941
return False
1970
942
1971
943
def approve(self, value=True):
1972
self.approved = value
1973
GLib.timeout_add(int(self.approval_duration.total_seconds()
1974
* 1000), self._reset_approved)
1975
944
self.send_changedstate()
1976
1977
# D-Bus methods, signals & properties
1978
1979
# Interfaces
1980
1981
# Signals
1982
945
self._approved = value
946
gobject.timeout_add(_timedelta_to_milliseconds
947
(self.approval_duration),
948
self._reset_approved)
949
950
951
## D-Bus methods, signals & properties
952
_interface = "se.bsnet.fukt.Mandos.Client"
953
954
## Signals
955
1983
956
# CheckerCompleted - signal
1984
957
@dbus.service.signal(_interface, signature="nxs")
1985
958
def CheckerCompleted(self, exitcode, waitstatus, command):
1986
959
"D-Bus signal"
1987
960
pass
1988
961
1989
962
# CheckerStarted - signal
1990
963
@dbus.service.signal(_interface, signature="s")
1991
964
def CheckerStarted(self, command):
1992
965
"D-Bus signal"
1993
966
pass
1994
967
1995
968
# PropertyChanged - signal
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1997
969
@dbus.service.signal(_interface, signature="sv")
1998
970
def PropertyChanged(self, property, value):
1999
971
"D-Bus signal"
2000
972
pass
2001
973
2002
974
# GotSecret - signal
2003
975
@dbus.service.signal(_interface)
2004
976
def GotSecret(self):
2007
979
server to mandos-client
2008
980
"""
2009
981
pass
2010
982
2011
983
# Rejected - signal
2012
984
@dbus.service.signal(_interface, signature="s")
2013
985
def Rejected(self, reason):
2014
986
"D-Bus signal"
2015
987
pass
2016
988
2017
989
# NeedApproval - signal
2018
990
@dbus.service.signal(_interface, signature="tb")
2019
991
def NeedApproval(self, timeout, default):
2020
992
"D-Bus signal"
2021
993
return self.need_approval()
2022
2023
# Methods
2024
994
995
## Methods
996
2025
997
# Approve - method
2026
998
@dbus.service.method(_interface, in_signature="b")
2027
999
def Approve(self, value):
2028
1000
self.approve(value)
2029
1001
2030
1002
# CheckedOK - method
2031
1003
@dbus.service.method(_interface)
2032
1004
def CheckedOK(self):
2033
1005
self.checked_ok()
2034
1006
2035
1007
# Enable - method
2036
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2037
1008
@dbus.service.method(_interface)
2038
1009
def Enable(self):
2039
1010
"D-Bus method"
2040
1011
self.enable()
2041
1012
2042
1013
# StartChecker - method
2043
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2044
1014
@dbus.service.method(_interface)
2045
1015
def StartChecker(self):
2046
1016
"D-Bus method"
2047
1017
self.start_checker()
2048
1018
2049
1019
# Disable - method
2050
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2051
1020
@dbus.service.method(_interface)
2052
1021
def Disable(self):
2053
1022
"D-Bus method"
2054
1023
self.disable()
2055
1024
2056
1025
# StopChecker - method
2057
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2058
1026
@dbus.service.method(_interface)
2059
1027
def StopChecker(self):
2060
1028
self.stop_checker()
2061
2062
# Properties
2063
1029
1030
## Properties
1031
2064
1032
# ApprovalPending - property
2065
1033
@dbus_service_property(_interface, signature="b", access="read")
2066
1034
def ApprovalPending_dbus_property(self):
2067
1035
return dbus.Boolean(bool(self.approvals_pending))
2068
1036
2069
1037
# ApprovedByDefault - property
2070
@dbus_service_property(_interface,
2071
signature="b",
1038
@dbus_service_property(_interface, signature="b",
2072
1039
access="readwrite")
2073
1040
def ApprovedByDefault_dbus_property(self, value=None):
2074
1041
if value is None: # get
2075
1042
return dbus.Boolean(self.approved_by_default)
2076
1043
self.approved_by_default = bool(value)
2077
1044
2078
1045
# ApprovalDelay - property
2079
@dbus_service_property(_interface,
2080
signature="t",
1046
@dbus_service_property(_interface, signature="t",
2081
1047
access="readwrite")
2082
1048
def ApprovalDelay_dbus_property(self, value=None):
2083
1049
if value is None: # get
2084
return dbus.UInt64(self.approval_delay.total_seconds()
2085
* 1000)
1050
return dbus.UInt64(self.approval_delay_milliseconds())
2086
1051
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2087
1052
2088
1053
# ApprovalDuration - property
2089
@dbus_service_property(_interface,
2090
signature="t",
1054
@dbus_service_property(_interface, signature="t",
2091
1055
access="readwrite")
2092
1056
def ApprovalDuration_dbus_property(self, value=None):
2093
1057
if value is None: # get
2094
return dbus.UInt64(self.approval_duration.total_seconds()
2095
* 1000)
1058
return dbus.UInt64(_timedelta_to_milliseconds(
1059
self.approval_duration))
2096
1060
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2097
1061
2098
1062
# Name - property
2099
@dbus_annotations(
2100
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2101
1063
@dbus_service_property(_interface, signature="s", access="read")
2102
1064
def Name_dbus_property(self):
2103
1065
return dbus.String(self.name)
2104
2105
# KeyID - property
2106
@dbus_annotations(
2107
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2108
@dbus_service_property(_interface, signature="s", access="read")
2109
def KeyID_dbus_property(self):
2110
return dbus.String(self.key_id)
2111
1066
2112
1067
# Fingerprint - property
2113
@dbus_annotations(
2114
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2115
1068
@dbus_service_property(_interface, signature="s", access="read")
2116
1069
def Fingerprint_dbus_property(self):
2117
1070
return dbus.String(self.fingerprint)
2118
1071
2119
1072
# Host - property
2120
@dbus_service_property(_interface,
2121
signature="s",
1073
@dbus_service_property(_interface, signature="s",
2122
1074
access="readwrite")
2123
1075
def Host_dbus_property(self, value=None):
2124
1076
if value is None: # get
2125
1077
return dbus.String(self.host)
2126
self.host = str(value)
2127
1078
self.host = value
1079
2128
1080
# Created - property
2129
@dbus_annotations(
2130
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2131
1081
@dbus_service_property(_interface, signature="s", access="read")
2132
1082
def Created_dbus_property(self):
2133
return datetime_to_dbus(self.created)
2134
1083
return dbus.String(datetime_to_dbus(self.created))
1084
2135
1085
# LastEnabled - property
2136
1086
@dbus_service_property(_interface, signature="s", access="read")
2137
1087
def LastEnabled_dbus_property(self):
2138
1088
return datetime_to_dbus(self.last_enabled)
2139
1089
2140
1090
# Enabled - property
2141
@dbus_service_property(_interface,
2142
signature="b",
1091
@dbus_service_property(_interface, signature="b",
2143
1092
access="readwrite")
2144
1093
def Enabled_dbus_property(self, value=None):
2145
1094
if value is None: # get
2148
1097
self.enable()
2149
1098
else:
2150
1099
self.disable()
2151
1100
2152
1101
# LastCheckedOK - property
2153
@dbus_service_property(_interface,
2154
signature="s",
1102
@dbus_service_property(_interface, signature="s",
2155
1103
access="readwrite")
2156
1104
def LastCheckedOK_dbus_property(self, value=None):
2157
1105
if value is not None:
2158
1106
self.checked_ok()
2159
1107
return
2160
1108
return datetime_to_dbus(self.last_checked_ok)
2161
2162
# LastCheckerStatus - property
2163
@dbus_service_property(_interface, signature="n", access="read")
2164
def LastCheckerStatus_dbus_property(self):
2165
return dbus.Int16(self.last_checker_status)
2166
1109
2167
1110
# Expires - property
2168
1111
@dbus_service_property(_interface, signature="s", access="read")
2169
1112
def Expires_dbus_property(self):
2170
1113
return datetime_to_dbus(self.expires)
2171
1114
2172
1115
# LastApprovalRequest - property
2173
1116
@dbus_service_property(_interface, signature="s", access="read")
2174
1117
def LastApprovalRequest_dbus_property(self):
2175
1118
return datetime_to_dbus(self.last_approval_request)
2176
1119
2177
1120
# Timeout - property
2178
@dbus_service_property(_interface,
2179
signature="t",
1121
@dbus_service_property(_interface, signature="t",
2180
1122
access="readwrite")
2181
1123
def Timeout_dbus_property(self, value=None):
2182
1124
if value is None: # get
2183
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2184
old_timeout = self.timeout
1125
return dbus.UInt64(self.timeout_milliseconds())
2185
1126
self.timeout = datetime.timedelta(0, 0, 0, value)
2186
# Reschedule disabling
2187
if self.enabled:
2188
now = datetime.datetime.utcnow()
2189
self.expires += self.timeout - old_timeout
2190
if self.expires <= now:
2191
# The timeout has passed
2192
self.disable()
2193
else:
2194
if (getattr(self, "disable_initiator_tag", None)
2195
is None):
2196
return
2197
GLib.source_remove(self.disable_initiator_tag)
2198
self.disable_initiator_tag = GLib.timeout_add(
2199
int((self.expires - now).total_seconds() * 1000),
2200
self.disable)
2201
1127
if getattr(self, "disable_initiator_tag", None) is None:
1128
return
1129
# Reschedule timeout
1130
gobject.source_remove(self.disable_initiator_tag)
1131
self.disable_initiator_tag = None
1132
self.expires = None
1133
time_to_die = (self.
1134
_timedelta_to_milliseconds((self
1135
.last_checked_ok
1136
+ self.timeout)
1137
- datetime.datetime
1138
.utcnow()))
1139
if time_to_die <= 0:
1140
# The timeout has passed
1141
self.disable()
1142
else:
1143
self.expires = (datetime.datetime.utcnow()
1144
+ datetime.timedelta(milliseconds = time_to_die))
1145
self.disable_initiator_tag = (gobject.timeout_add
1146
(time_to_die, self.disable))
1147
2202
1148
# ExtendedTimeout - property
2203
@dbus_service_property(_interface,
2204
signature="t",
1149
@dbus_service_property(_interface, signature="t",
2205
1150
access="readwrite")
2206
1151
def ExtendedTimeout_dbus_property(self, value=None):
2207
1152
if value is None: # get
2208
return dbus.UInt64(self.extended_timeout.total_seconds()
2209
* 1000)
1153
return dbus.UInt64(self.extended_timeout_milliseconds())
2210
1154
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2211
1155
2212
1156
# Interval - property
2213
@dbus_service_property(_interface,
2214
signature="t",
1157
@dbus_service_property(_interface, signature="t",
2215
1158
access="readwrite")
2216
1159
def Interval_dbus_property(self, value=None):
2217
1160
if value is None: # get
2218
return dbus.UInt64(self.interval.total_seconds() * 1000)
1161
return dbus.UInt64(self.interval_milliseconds())
2219
1162
self.interval = datetime.timedelta(0, 0, 0, value)
2220
1163
if getattr(self, "checker_initiator_tag", None) is None:
2221
1164
return
2222
if self.enabled:
2223
# Reschedule checker run
2224
GLib.source_remove(self.checker_initiator_tag)
2225
self.checker_initiator_tag = GLib.timeout_add(
2226
value, self.start_checker)
2227
self.start_checker() # Start one now, too
2228
1165
# Reschedule checker run
1166
gobject.source_remove(self.checker_initiator_tag)
1167
self.checker_initiator_tag = (gobject.timeout_add
1168
(value, self.start_checker))
1169
self.start_checker() # Start one now, too
1170
2229
1171
# Checker - property
2230
@dbus_service_property(_interface,
2231
signature="s",
1172
@dbus_service_property(_interface, signature="s",
2232
1173
access="readwrite")
2233
1174
def Checker_dbus_property(self, value=None):
2234
1175
if value is None: # get
2235
1176
return dbus.String(self.checker_command)
2236
self.checker_command = str(value)
2237
1177
self.checker_command = value
1178
2238
1179
# CheckerRunning - property
2239
@dbus_service_property(_interface,
2240
signature="b",
1180
@dbus_service_property(_interface, signature="b",
2241
1181
access="readwrite")
2242
1182
def CheckerRunning_dbus_property(self, value=None):
2243
1183
if value is None: # get
2246
1186
self.start_checker()
2247
1187
else:
2248
1188
self.stop_checker()
2249
1189
2250
1190
# ObjectPath - property
2251
@dbus_annotations(
2252
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2253
"org.freedesktop.DBus.Deprecated": "true"})
2254
1191
@dbus_service_property(_interface, signature="o", access="read")
2255
1192
def ObjectPath_dbus_property(self):
2256
return self.dbus_object_path # is already a dbus.ObjectPath
2257
1193
return self.dbus_object_path # is already a dbus.ObjectPath
1194
2258
1195
# Secret = property
2259
@dbus_annotations(
2260
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2261
"invalidates"})
2262
@dbus_service_property(_interface,
2263
signature="ay",
2264
access="write",
2265
byte_arrays=True)
1196
@dbus_service_property(_interface, signature="ay",
1197
access="write", byte_arrays=True)
2266
1198
def Secret_dbus_property(self, value):
2267
self.secret = bytes(value)
2268
1199
self.secret = str(value)
1200
2269
1201
del _interface
2270
1202
2271
1203
2272
class ProxyClient:
2273
def __init__(self, child_pipe, key_id, fpr, address):
1204
class ProxyClient(object):
1205
def __init__(self, child_pipe, fpr, address):
2274
1206
self._pipe = child_pipe
2275
self._pipe.send(('init', key_id, fpr, address))
1207
self._pipe.send(('init', fpr, address))
2276
1208
if not self._pipe.recv():
2277
raise KeyError(key_id or fpr)
2278
1209
raise KeyError()
1210
2279
1211
def __getattribute__(self, name):
2280
if name == '_pipe':
1212
if(name == '_pipe'):
2281
1213
return super(ProxyClient, self).__getattribute__(name)
2282
1214
self._pipe.send(('getattr', name))
2283
1215
data = self._pipe.recv()
2284
1216
if data[0] == 'data':
2285
1217
return data[1]
2286
1218
if data[0] == 'function':
2287
2288
1219
def func(*args, **kwargs):
2289
1220
self._pipe.send(('funcall', name, args, kwargs))
2290
1221
return self._pipe.recv()[1]
2291
2292
1222
return func
2293
1223
2294
1224
def __setattr__(self, name, value):
2295
if name == '_pipe':
1225
if(name == '_pipe'):
2296
1226
return super(ProxyClient, self).__setattr__(name, value)
2297
1227
self._pipe.send(('setattr', name, value))
2298
1228
1229
class ClientDBusTransitional(ClientDBus):
1230
__metaclass__ = transitional_dbus_metaclass
2299
1231
2300
1232
class ClientHandler(socketserver.BaseRequestHandler, object):
2301
1233
"""A class to handle client connections.
2302
1234
2303
1235
Instantiated once for each connection to handle it.
2304
1236
Note: This will run in its own forked process."""
2305
1237
2306
1238
def handle(self):
2307
1239
with contextlib.closing(self.server.child_pipe) as child_pipe:
2308
1240
logger.info("TCP connection from: %s",
2309
str(self.client_address))
1241
unicode(self.client_address))
2310
1242
logger.debug("Pipe FD: %d",
2311
1243
self.server.child_pipe.fileno())
2312
2313
session = gnutls.ClientSession(self.request)
2314
2315
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2316
# "+AES-256-CBC", "+SHA1",
2317
# "+COMP-NULL", "+CTYPE-OPENPGP",
2318
# "+DHE-DSS"))
1244
1245
session = (gnutls.connection
1246
.ClientSession(self.request,
1247
gnutls.connection
1248
.X509Credentials()))
1249
1250
# Note: gnutls.connection.X509Credentials is really a
1251
# generic GnuTLS certificate credentials object so long as
1252
# no X.509 keys are added to it. Therefore, we can use it
1253
# here despite using OpenPGP certificates.
1254
1255
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1256
# "+AES-256-CBC", "+SHA1",
1257
# "+COMP-NULL", "+CTYPE-OPENPGP",
1258
# "+DHE-DSS"))
2319
1259
# Use a fallback default, since this MUST be set.
2320
1260
priority = self.server.gnutls_priority
2321
1261
if priority is None:
2322
1262
priority = "NORMAL"
2323
gnutls.priority_set_direct(session,
2324
priority.encode("utf-8"), None)
2325
1263
(gnutls.library.functions
1264
.gnutls_priority_set_direct(session._c_object,
1265
priority, None))
1266
2326
1267
# Start communication using the Mandos protocol
2327
1268
# Get protocol number
2328
1269
line = self.request.makefile().readline()
2329
1270
logger.debug("Protocol version: %r", line)
2330
1271
try:
2331
1272
if int(line.strip().split()[0]) > 1:
2332
raise RuntimeError(line)
1273
raise RuntimeError
2333
1274
except (ValueError, IndexError, RuntimeError) as error:
2334
1275
logger.error("Unknown protocol version: %s", error)
2335
1276
return
2336
1277
2337
1278
# Start GnuTLS connection
2338
1279
try:
2339
1280
session.handshake()
2340
except gnutls.Error as error:
1281
except gnutls.errors.GNUTLSError as error:
2341
1282
logger.warning("Handshake failed: %s", error)
2342
1283
# Do not run session.bye() here: the session is not
2343
1284
# established. Just abandon the request.
2344
1285
return
2345
1286
logger.debug("Handshake succeeded")
2346
1287
2347
1288
approval_required = False
2348
1289
try:
2349
if gnutls.has_rawpk:
2350
fpr = b""
2351
try:
2352
key_id = self.key_id(
2353
self.peer_certificate(session))
2354
except (TypeError, gnutls.Error) as error:
2355
logger.warning("Bad certificate: %s", error)
2356
return
2357
logger.debug("Key ID: %s",
2358
key_id.decode("utf-8",
2359
errors="replace"))
2360
2361
else:
2362
key_id = b""
2363
try:
2364
fpr = self.fingerprint(
2365
self.peer_certificate(session))
2366
except (TypeError, gnutls.Error) as error:
2367
logger.warning("Bad certificate: %s", error)
2368
return
2369
logger.debug("Fingerprint: %s", fpr)
2370
2371
try:
2372
client = ProxyClient(child_pipe, key_id, fpr,
1290
try:
1291
fpr = self.fingerprint(self.peer_certificate
1292
(session))
1293
except (TypeError,
1294
gnutls.errors.GNUTLSError) as error:
1295
logger.warning("Bad certificate: %s", error)
1296
return
1297
logger.debug("Fingerprint: %s", fpr)
1298
1299
try:
1300
client = ProxyClient(child_pipe, fpr,
2373
1301
self.client_address)
2374
1302
except KeyError:
2375
1303
return
2376
1304
2377
1305
if client.approval_delay:
2378
1306
delay = client.approval_delay
2379
1307
client.approvals_pending += 1
2380
1308
approval_required = True
2381
1309
2382
1310
while True:
2383
1311
if not client.enabled:
2384
1312
logger.info("Client %s is disabled",
2385
client.name)
1313
client.name)
2386
1314
if self.server.use_dbus:
2387
1315
# Emit D-Bus signal
2388
client.Rejected("Disabled")
1316
client.Rejected("Disabled")
2389
1317
return
2390
2391
if client.approved or not client.approval_delay:
2392
# We are approved or approval is disabled
1318
1319
if client._approved or not client.approval_delay:
1320
#We are approved or approval is disabled
2393
1321
break
2394
elif client.approved is None:
1322
elif client._approved is None:
2395
1323
logger.info("Client %s needs approval",
2396
1324
client.name)
2397
1325
if self.server.use_dbus:
2398
1326
# Emit D-Bus signal
2399
1327
client.NeedApproval(
2400
client.approval_delay.total_seconds()
2401
* 1000, client.approved_by_default)
1328
client.approval_delay_milliseconds(),
1329
client.approved_by_default)
2402
1330
else:
2403
1331
logger.warning("Client %s was not approved",
2404
1332
client.name)
2406
1334
# Emit D-Bus signal
2407
1335
client.Rejected("Denied")
2408
1336
return
2409
2410
# wait until timeout or approved
1337
1338
#wait until timeout or approved
1339
#x = float(client._timedelta_to_milliseconds(delay))
2411
1340
time = datetime.datetime.now()
2412
1341
client.changedstate.acquire()
2413
client.changedstate.wait(delay.total_seconds())
1342
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
2414
1343
client.changedstate.release()
2415
1344
time2 = datetime.datetime.now()
2416
1345
if (time2 - time) >= delay:
2426
1355
break
2427
1356
else:
2428
1357
delay -= time2 - time
2429
2430
try:
2431
session.send(client.secret)
2432
except gnutls.Error as error:
2433
logger.warning("gnutls send failed",
2434
exc_info=error)
2435
return
2436
1358
1359
sent_size = 0
1360
while sent_size < len(client.secret):
1361
try:
1362
sent = session.send(client.secret[sent_size:])
1363
except gnutls.errors.GNUTLSError as error:
1364
logger.warning("gnutls send failed")
1365
return
1366
logger.debug("Sent: %d, remaining: %d",
1367
sent, len(client.secret)
1368
- (sent_size + sent))
1369
sent_size += sent
1370
2437
1371
logger.info("Sending secret to %s", client.name)
2438
# bump the timeout using extended_timeout
2439
client.bump_timeout(client.extended_timeout)
1372
# bump the timeout as if seen
1373
client.checked_ok(client.extended_timeout)
2440
1374
if self.server.use_dbus:
2441
1375
# Emit D-Bus signal
2442
1376
client.GotSecret()
2443
1377
2444
1378
finally:
2445
1379
if approval_required:
2446
1380
client.approvals_pending -= 1
2447
1381
try:
2448
1382
session.bye()
2449
except gnutls.Error as error:
2450
logger.warning("GnuTLS bye failed",
2451
exc_info=error)
2452
1383
except gnutls.errors.GNUTLSError as error:
1384
logger.warning("GnuTLS bye failed")
1385
2453
1386
@staticmethod
2454
1387
def peer_certificate(session):
2455
"Return the peer's certificate as a bytestring"
2456
try:
2457
cert_type = gnutls.certificate_type_get2(
2458
session, gnutls.CTYPE_PEERS)
2459
except AttributeError:
2460
cert_type = gnutls.certificate_type_get(session)
2461
if gnutls.has_rawpk:
2462
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2463
else:
2464
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2465
# If not a valid certificate type...
2466
if cert_type not in valid_cert_types:
2467
logger.info("Cert type %r not in %r", cert_type,
2468
valid_cert_types)
2469
# ...return invalid data
2470
return b""
1388
"Return the peer's OpenPGP certificate as a bytestring"
1389
# If not an OpenPGP certificate...
1390
if (gnutls.library.functions
1391
.gnutls_certificate_type_get(session._c_object)
1392
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1393
# ...do the normal thing
1394
return session.peer_certificate
2471
1395
list_size = ctypes.c_uint(1)
2472
cert_list = (gnutls.certificate_get_peers
2473
(session, ctypes.byref(list_size)))
1396
cert_list = (gnutls.library.functions
1397
.gnutls_certificate_get_peers
1398
(session._c_object, ctypes.byref(list_size)))
2474
1399
if not bool(cert_list) and list_size.value != 0:
2475
raise gnutls.Error("error getting peer certificate")
1400
raise gnutls.errors.GNUTLSError("error getting peer"
1401
" certificate")
2476
1402
if list_size.value == 0:
2477
1403
return None
2478
1404
cert = cert_list[0]
2479
1405
return ctypes.string_at(cert.data, cert.size)
2480
2481
@staticmethod
2482
def key_id(certificate):
2483
"Convert a certificate bytestring to a hexdigit key ID"
2484
# New GnuTLS "datum" with the public key
2485
datum = gnutls.datum_t(
2486
ctypes.cast(ctypes.c_char_p(certificate),
2487
ctypes.POINTER(ctypes.c_ubyte)),
2488
ctypes.c_uint(len(certificate)))
2489
# XXX all these need to be created in the gnutls "module"
2490
# New empty GnuTLS certificate
2491
pubkey = gnutls.pubkey_t()
2492
gnutls.pubkey_init(ctypes.byref(pubkey))
2493
# Import the raw public key into the certificate
2494
gnutls.pubkey_import(pubkey,
2495
ctypes.byref(datum),
2496
gnutls.X509_FMT_DER)
2497
# New buffer for the key ID
2498
buf = ctypes.create_string_buffer(32)
2499
buf_len = ctypes.c_size_t(len(buf))
2500
# Get the key ID from the raw public key into the buffer
2501
gnutls.pubkey_get_key_id(
2502
pubkey,
2503
gnutls.KEYID_USE_SHA256,
2504
ctypes.cast(ctypes.byref(buf),
2505
ctypes.POINTER(ctypes.c_ubyte)),
2506
ctypes.byref(buf_len))
2507
# Deinit the certificate
2508
gnutls.pubkey_deinit(pubkey)
2509
2510
# Convert the buffer to a Python bytestring
2511
key_id = ctypes.string_at(buf, buf_len.value)
2512
# Convert the bytestring to hexadecimal notation
2513
hex_key_id = binascii.hexlify(key_id).upper()
2514
return hex_key_id
2515
1406
2516
1407
@staticmethod
2517
1408
def fingerprint(openpgp):
2518
1409
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2519
1410
# New GnuTLS "datum" with the OpenPGP public key
2520
datum = gnutls.datum_t(
2521
ctypes.cast(ctypes.c_char_p(openpgp),
2522
ctypes.POINTER(ctypes.c_ubyte)),
2523
ctypes.c_uint(len(openpgp)))
1411
datum = (gnutls.library.types
1412
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1413
ctypes.POINTER
1414
(ctypes.c_ubyte)),
1415
ctypes.c_uint(len(openpgp))))
2524
1416
# New empty GnuTLS certificate
2525
crt = gnutls.openpgp_crt_t()
2526
gnutls.openpgp_crt_init(ctypes.byref(crt))
1417
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1418
(gnutls.library.functions
1419
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2527
1420
# Import the OpenPGP public key into the certificate
2528
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2529
gnutls.OPENPGP_FMT_RAW)
1421
(gnutls.library.functions
1422
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1423
gnutls.library.constants
1424
.GNUTLS_OPENPGP_FMT_RAW))
2530
1425
# Verify the self signature in the key
2531
1426
crtverify = ctypes.c_uint()
2532
gnutls.openpgp_crt_verify_self(crt, 0,
2533
ctypes.byref(crtverify))
1427
(gnutls.library.functions
1428
.gnutls_openpgp_crt_verify_self(crt, 0,
1429
ctypes.byref(crtverify)))
2534
1430
if crtverify.value != 0:
2535
gnutls.openpgp_crt_deinit(crt)
2536
raise gnutls.CertificateSecurityError(code
2537
=crtverify.value)
1431
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1432
raise (gnutls.errors.CertificateSecurityError
1433
("Verify failed"))
2538
1434
# New buffer for the fingerprint
2539
1435
buf = ctypes.create_string_buffer(20)
2540
1436
buf_len = ctypes.c_size_t()
2541
1437
# Get the fingerprint from the certificate into the buffer
2542
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2543
ctypes.byref(buf_len))
1438
(gnutls.library.functions
1439
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1440
ctypes.byref(buf_len)))
2544
1441
# Deinit the certificate
2545
gnutls.openpgp_crt_deinit(crt)
1442
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2546
1443
# Convert the buffer to a Python bytestring
2547
1444
fpr = ctypes.string_at(buf, buf_len.value)
2548
1445
# Convert the bytestring to hexadecimal notation
2549
hex_fpr = binascii.hexlify(fpr).upper()
1446
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2550
1447
return hex_fpr
2551
1448
2552
1449
2553
class MultiprocessingMixIn:
1450
class MultiprocessingMixIn(object):
2554
1451
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2555
2556
1452
def sub_process_main(self, request, address):
2557
1453
try:
2558
1454
self.finish_request(request, address)
2559
except Exception:
1455
except:
2560
1456
self.handle_error(request, address)
2561
1457
self.close_request(request)
2562
1458
2563
1459
def process_request(self, request, address):
2564
1460
"""Start a new process to process the request."""
2565
proc = multiprocessing.Process(target=self.sub_process_main,
2566
args=(request, address))
2567
proc.start()
2568
return proc
2569
2570
2571
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1461
multiprocessing.Process(target = self.sub_process_main,
1462
args = (request, address)).start()
1463
1464
1465
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2572
1466
""" adds a pipe to the MixIn """
2573
2574
1467
def process_request(self, request, client_address):
2575
1468
"""Overrides and wraps the original process_request().
2576
1469
2577
1470
This function creates a new pipe in self.pipe
2578
1471
"""
2579
1472
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2580
2581
proc = MultiprocessingMixIn.process_request(self, request,
2582
client_address)
1473
1474
super(MultiprocessingMixInWithPipe,
1475
self).process_request(request, client_address)
2583
1476
self.child_pipe.close()
2584
self.add_pipe(parent_pipe, proc)
2585
2586
def add_pipe(self, parent_pipe, proc):
1477
self.add_pipe(parent_pipe)
1478
1479
def add_pipe(self, parent_pipe):
2587
1480
"""Dummy function; override as necessary"""
2588
raise NotImplementedError()
1481
raise NotImplementedError
2589
1482
2590
1483
2591
1484
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2592
socketserver.TCPServer):
1485
socketserver.TCPServer, object):
2593
1486
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2594
1487
2595
1488
Attributes:
2596
1489
enabled: Boolean; whether this server is activated yet
2597
1490
interface: None or a network interface name (string)
2598
1491
use_ipv6: Boolean; to use IPv6 or not
2599
1492
"""
2600
2601
1493
def __init__(self, server_address, RequestHandlerClass,
2602
interface=None,
2603
use_ipv6=True,
2604
socketfd=None):
2605
"""If socketfd is set, use that file descriptor instead of
2606
creating a new one with socket.socket().
2607
"""
1494
interface=None, use_ipv6=True):
2608
1495
self.interface = interface
2609
1496
if use_ipv6:
2610
1497
self.address_family = socket.AF_INET6
2611
if socketfd is not None:
2612
# Save the file descriptor
2613
self.socketfd = socketfd
2614
# Save the original socket.socket() function
2615
self.socket_socket = socket.socket
2616
2617
# To implement --socket, we monkey patch socket.socket.
2618
#
2619
# (When socketserver.TCPServer is a new-style class, we
2620
# could make self.socket into a property instead of monkey
2621
# patching socket.socket.)
2622
#
2623
# Create a one-time-only replacement for socket.socket()
2624
@functools.wraps(socket.socket)
2625
def socket_wrapper(*args, **kwargs):
2626
# Restore original function so subsequent calls are
2627
# not affected.
2628
socket.socket = self.socket_socket
2629
del self.socket_socket
2630
# This time only, return a new socket object from the
2631
# saved file descriptor.
2632
return socket.fromfd(self.socketfd, *args, **kwargs)
2633
# Replace socket.socket() function with wrapper
2634
socket.socket = socket_wrapper
2635
# The socketserver.TCPServer.__init__ will call
2636
# socket.socket(), which might be our replacement,
2637
# socket_wrapper(), if socketfd was set.
2638
1498
socketserver.TCPServer.__init__(self, server_address,
2639
1499
RequestHandlerClass)
2640
2641
1500
def server_bind(self):
2642
1501
"""This overrides the normal server_bind() function
2643
1502
to bind to an interface if one was specified, and also NOT to
2644
1503
bind to an address or port if they were not specified."""
2645
global SO_BINDTODEVICE
2646
1504
if self.interface is not None:
2647
1505
if SO_BINDTODEVICE is None:
2648
# Fall back to a hard-coded value which seems to be
2649
# common enough.
2650
logger.warning("SO_BINDTODEVICE not found, trying 25")
2651
SO_BINDTODEVICE = 25
2652
try:
2653
self.socket.setsockopt(
2654
socket.SOL_SOCKET, SO_BINDTODEVICE,
2655
(self.interface + "\0").encode("utf-8"))
2656
except socket.error as error:
2657
if error.errno == errno.EPERM:
2658
logger.error("No permission to bind to"
2659
" interface %s", self.interface)
2660
elif error.errno == errno.ENOPROTOOPT:
2661
logger.error("SO_BINDTODEVICE not available;"
2662
" cannot bind to interface %s",
2663
self.interface)
2664
elif error.errno == errno.ENODEV:
2665
logger.error("Interface %s does not exist,"
2666
" cannot bind", self.interface)
2667
else:
2668
raise
1506
logger.error("SO_BINDTODEVICE does not exist;"
1507
" cannot bind to interface %s",
1508
self.interface)
1509
else:
1510
try:
1511
self.socket.setsockopt(socket.SOL_SOCKET,
1512
SO_BINDTODEVICE,
1513
str(self.interface
1514
+ '\0'))
1515
except socket.error as error:
1516
if error[0] == errno.EPERM:
1517
logger.error("No permission to"
1518
" bind to interface %s",
1519
self.interface)
1520
elif error[0] == errno.ENOPROTOOPT:
1521
logger.error("SO_BINDTODEVICE not available;"
1522
" cannot bind to interface %s",
1523
self.interface)
1524
else:
1525
raise
2669
1526
# Only bind(2) the socket if we really need to.
2670
1527
if self.server_address[0] or self.server_address[1]:
2671
if self.server_address[1]:
2672
self.allow_reuse_address = True
2673
1528
if not self.server_address[0]:
2674
1529
if self.address_family == socket.AF_INET6:
2675
any_address = "::" # in6addr_any
1530
any_address = "::" # in6addr_any
2676
1531
else:
2677
any_address = "0.0.0.0" # INADDR_ANY
1532
any_address = socket.INADDR_ANY
2678
1533
self.server_address = (any_address,
2679
1534
self.server_address[1])
2680
1535
elif not self.server_address[1]:
2681
self.server_address = (self.server_address[0], 0)
1536
self.server_address = (self.server_address[0],
1537
0)
2682
1538
# if self.interface:
2683
1539
# self.server_address = (self.server_address[0],
2684
1540
# 0, # port
2690
1546
2691
1547
class MandosServer(IPv6_TCPServer):
2692
1548
"""Mandos server.
2693
1549
2694
1550
Attributes:
2695
1551
clients: set of Client objects
2696
1552
gnutls_priority GnuTLS priority string
2697
1553
use_dbus: Boolean; to emit D-Bus signals or not
2698
2699
Assumes a GLib.MainLoop event loop.
1554
1555
Assumes a gobject.MainLoop event loop.
2700
1556
"""
2701
2702
1557
def __init__(self, server_address, RequestHandlerClass,
2703
interface=None,
2704
use_ipv6=True,
2705
clients=None,
2706
gnutls_priority=None,
2707
use_dbus=True,
2708
socketfd=None):
1558
interface=None, use_ipv6=True, clients=None,
1559
gnutls_priority=None, use_dbus=True):
2709
1560
self.enabled = False
2710
1561
self.clients = clients
2711
1562
if self.clients is None:
2712
self.clients = {}
1563
self.clients = set()
2713
1564
self.use_dbus = use_dbus
2714
1565
self.gnutls_priority = gnutls_priority
2715
1566
IPv6_TCPServer.__init__(self, server_address,
2716
1567
RequestHandlerClass,
2717
interface=interface,
2718
use_ipv6=use_ipv6,
2719
socketfd=socketfd)
2720
1568
interface = interface,
1569
use_ipv6 = use_ipv6)
2721
1570
def server_activate(self):
2722
1571
if self.enabled:
2723
1572
return socketserver.TCPServer.server_activate(self)
2724
2725
1573
def enable(self):
2726
1574
self.enabled = True
2727
2728
def add_pipe(self, parent_pipe, proc):
1575
def add_pipe(self, parent_pipe):
2729
1576
# Call "handle_ipc" for both data and EOF events
2730
GLib.io_add_watch(
2731
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2732
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2733
functools.partial(self.handle_ipc,
2734
parent_pipe=parent_pipe,
2735
proc=proc))
2736
2737
def handle_ipc(self, source, condition,
2738
parent_pipe=None,
2739
proc=None,
1577
gobject.io_add_watch(parent_pipe.fileno(),
1578
gobject.IO_IN | gobject.IO_HUP,
1579
functools.partial(self.handle_ipc,
1580
parent_pipe = parent_pipe))
1581
1582
def handle_ipc(self, source, condition, parent_pipe=None,
2740
1583
client_object=None):
2741
# error, or the other end of multiprocessing.Pipe has closed
2742
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2743
# Wait for other process to exit
2744
proc.join()
1584
condition_names = {
1585
gobject.IO_IN: "IN", # There is data to read.
1586
gobject.IO_OUT: "OUT", # Data can be written (without
1587
# blocking).
1588
gobject.IO_PRI: "PRI", # There is urgent data to read.
1589
gobject.IO_ERR: "ERR", # Error condition.
1590
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1591
# broken, usually for pipes and
1592
# sockets).
1593
}
1594
conditions_string = ' | '.join(name
1595
for cond, name in
1596
condition_names.iteritems()
1597
if cond & condition)
1598
# error or the other end of multiprocessing.Pipe has closed
1599
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2745
1600
return False
2746
1601
2747
1602
# Read a request from the child
2748
1603
request = parent_pipe.recv()
2749
1604
command = request[0]
2750
1605
2751
1606
if command == 'init':
2752
key_id = request[1].decode("ascii")
2753
fpr = request[2].decode("ascii")
2754
address = request[3]
2755
2756
for c in self.clients.values():
2757
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2758
"27AE41E4649B934CA495991B7852B855"):
2759
continue
2760
if key_id and c.key_id == key_id:
2761
client = c
2762
break
2763
if fpr and c.fingerprint == fpr:
1607
fpr = request[1]
1608
address = request[2]
1609
1610
for c in self.clients:
1611
if c.fingerprint == fpr:
2764
1612
client = c
2765
1613
break
2766
1614
else:
2767
logger.info("Client not found for key ID: %s, address"
2768
": %s", key_id or fpr, address)
1615
logger.info("Client not found for fingerprint: %s, ad"
1616
"dress: %s", fpr, address)
2769
1617
if self.use_dbus:
2770
1618
# Emit D-Bus signal
2771
mandos_dbus_service.ClientNotFound(key_id or fpr,
2772
address[0])
1619
mandos_dbus_service.ClientNotFound(fpr, address[0])
2773
1620
parent_pipe.send(False)
2774
1621
return False
2775
2776
GLib.io_add_watch(
2777
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2778
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2779
functools.partial(self.handle_ipc,
2780
parent_pipe=parent_pipe,
2781
proc=proc,
2782
client_object=client))
1622
1623
gobject.io_add_watch(parent_pipe.fileno(),
1624
gobject.IO_IN | gobject.IO_HUP,
1625
functools.partial(self.handle_ipc,
1626
parent_pipe = parent_pipe,
1627
client_object = client))
2783
1628
parent_pipe.send(True)
2784
# remove the old hook in favor of the new above hook on
2785
# same fileno
1629
# remove the old hook in favor of the new above hook on same fileno
2786
1630
return False
2787
1631
if command == 'funcall':
2788
1632
funcname = request[1]
2789
1633
args = request[2]
2790
1634
kwargs = request[3]
2791
2792
parent_pipe.send(('data', getattr(client_object,
2793
funcname)(*args,
2794
**kwargs)))
2795
1635
1636
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1637
2796
1638
if command == 'getattr':
2797
1639
attrname = request[1]
2798
if isinstance(client_object.__getattribute__(attrname),
2799
collections.abc.Callable):
2800
parent_pipe.send(('function', ))
1640
if callable(client_object.__getattribute__(attrname)):
1641
parent_pipe.send(('function',))
2801
1642
else:
2802
parent_pipe.send((
2803
'data', client_object.__getattribute__(attrname)))
2804
1643
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1644
2805
1645
if command == 'setattr':
2806
1646
attrname = request[1]
2807
1647
value = request[2]
2808
1648
setattr(client_object, attrname, value)
2809
1649
2810
1650
return True
2811
1651
2812
1652
2813
def rfc3339_duration_to_delta(duration):
2814
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2815
2816
>>> timedelta = datetime.timedelta
2817
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2818
True
2819
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2820
True
2821
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2822
True
2823
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2824
True
2825
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2826
True
2827
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2828
True
2829
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2830
True
2831
>>> del timedelta
2832
"""
2833
2834
# Parsing an RFC 3339 duration with regular expressions is not
2835
# possible - there would have to be multiple places for the same
2836
# values, like seconds. The current code, while more esoteric, is
2837
# cleaner without depending on a parsing library. If Python had a
2838
# built-in library for parsing we would use it, but we'd like to
2839
# avoid excessive use of external libraries.
2840
2841
# New type for defining tokens, syntax, and semantics all-in-one
2842
Token = collections.namedtuple("Token", (
2843
"regexp", # To match token; if "value" is not None, must have
2844
# a "group" containing digits
2845
"value", # datetime.timedelta or None
2846
"followers")) # Tokens valid after this token
2847
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2848
# the "duration" ABNF definition in RFC 3339, Appendix A.
2849
token_end = Token(re.compile(r"$"), None, frozenset())
2850
token_second = Token(re.compile(r"(\d+)S"),
2851
datetime.timedelta(seconds=1),
2852
frozenset((token_end, )))
2853
token_minute = Token(re.compile(r"(\d+)M"),
2854
datetime.timedelta(minutes=1),
2855
frozenset((token_second, token_end)))
2856
token_hour = Token(re.compile(r"(\d+)H"),
2857
datetime.timedelta(hours=1),
2858
frozenset((token_minute, token_end)))
2859
token_time = Token(re.compile(r"T"),
2860
None,
2861
frozenset((token_hour, token_minute,
2862
token_second)))
2863
token_day = Token(re.compile(r"(\d+)D"),
2864
datetime.timedelta(days=1),
2865
frozenset((token_time, token_end)))
2866
token_month = Token(re.compile(r"(\d+)M"),
2867
datetime.timedelta(weeks=4),
2868
frozenset((token_day, token_end)))
2869
token_year = Token(re.compile(r"(\d+)Y"),
2870
datetime.timedelta(weeks=52),
2871
frozenset((token_month, token_end)))
2872
token_week = Token(re.compile(r"(\d+)W"),
2873
datetime.timedelta(weeks=1),
2874
frozenset((token_end, )))
2875
token_duration = Token(re.compile(r"P"), None,
2876
frozenset((token_year, token_month,
2877
token_day, token_time,
2878
token_week)))
2879
# Define starting values:
2880
# Value so far
2881
value = datetime.timedelta()
2882
found_token = None
2883
# Following valid tokens
2884
followers = frozenset((token_duration, ))
2885
# String left to parse
2886
s = duration
2887
# Loop until end token is found
2888
while found_token is not token_end:
2889
# Search for any currently valid tokens
2890
for token in followers:
2891
match = token.regexp.match(s)
2892
if match is not None:
2893
# Token found
2894
if token.value is not None:
2895
# Value found, parse digits
2896
factor = int(match.group(1), 10)
2897
# Add to value so far
2898
value += factor * token.value
2899
# Strip token from string
2900
s = token.regexp.sub("", s, 1)
2901
# Go to found token
2902
found_token = token
2903
# Set valid next tokens
2904
followers = found_token.followers
2905
break
2906
else:
2907
# No currently valid tokens were found
2908
raise ValueError("Invalid RFC 3339 duration: {!r}"
2909
.format(duration))
2910
# End token found
2911
return value
2912
2913
2914
1653
def string_to_delta(interval):
2915
1654
"""Parse a string and return a datetime.timedelta
2916
2917
>>> string_to_delta('7d') == datetime.timedelta(7)
2918
True
2919
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2920
True
2921
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2922
True
2923
>>> string_to_delta('24h') == datetime.timedelta(1)
2924
True
2925
>>> string_to_delta('1w') == datetime.timedelta(7)
2926
True
2927
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2928
True
1655
1656
>>> string_to_delta('7d')
1657
datetime.timedelta(7)
1658
>>> string_to_delta('60s')
1659
datetime.timedelta(0, 60)
1660
>>> string_to_delta('60m')
1661
datetime.timedelta(0, 3600)
1662
>>> string_to_delta('24h')
1663
datetime.timedelta(1)
1664
>>> string_to_delta('1w')
1665
datetime.timedelta(7)
1666
>>> string_to_delta('5m 30s')
1667
datetime.timedelta(0, 330)
2929
1668
"""
2930
2931
try:
2932
return rfc3339_duration_to_delta(interval)
2933
except ValueError:
2934
pass
2935
2936
1669
timevalue = datetime.timedelta(0)
2937
1670
for s in interval.split():
2938
1671
try:
2939
suffix = s[-1]
1672
suffix = unicode(s[-1])
2940
1673
value = int(s[:-1])
2941
1674
if suffix == "d":
2942
1675
delta = datetime.timedelta(value)
2949
1682
elif suffix == "w":
2950
1683
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2951
1684
else:
2952
raise ValueError("Unknown suffix {!r}".format(suffix))
2953
except IndexError as e:
1685
raise ValueError("Unknown suffix %r" % suffix)
1686
except (ValueError, IndexError) as e:
2954
1687
raise ValueError(*(e.args))
2955
1688
timevalue += delta
2956
1689
return timevalue
2957
1690
2958
1691
2959
def daemon(nochdir=False, noclose=False):
1692
def if_nametoindex(interface):
1693
"""Call the C function if_nametoindex(), or equivalent
1694
1695
Note: This function cannot accept a unicode string."""
1696
global if_nametoindex
1697
try:
1698
if_nametoindex = (ctypes.cdll.LoadLibrary
1699
(ctypes.util.find_library("c"))
1700
.if_nametoindex)
1701
except (OSError, AttributeError):
1702
logger.warning("Doing if_nametoindex the hard way")
1703
def if_nametoindex(interface):
1704
"Get an interface index the hard way, i.e. using fcntl()"
1705
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1706
with contextlib.closing(socket.socket()) as s:
1707
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1708
struct.pack(str("16s16x"),
1709
interface))
1710
interface_index = struct.unpack(str("I"),
1711
ifreq[16:20])[0]
1712
return interface_index
1713
return if_nametoindex(interface)
1714
1715
1716
def daemon(nochdir = False, noclose = False):
2960
1717
"""See daemon(3). Standard BSD Unix function.
2961
1718
2962
1719
This should really exist as os.daemon, but it doesn't (yet)."""
2963
1720
if os.fork():
2964
1721
sys.exit()
2969
1726
sys.exit()
2970
1727
if not noclose:
2971
1728
# Close all standard open file descriptors
2972
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1729
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2973
1730
if not stat.S_ISCHR(os.fstat(null).st_mode):
2974
1731
raise OSError(errno.ENODEV,
2975
"{} not a character device"
2976
.format(os.devnull))
1732
"%s not a character device"
1733
% os.path.devnull)
2977
1734
os.dup2(null, sys.stdin.fileno())
2978
1735
os.dup2(null, sys.stdout.fileno())
2979
1736
os.dup2(null, sys.stderr.fileno())
2982
1739
2983
1740
2984
1741
def main():
2985
1742
2986
1743
##################################################################
2987
1744
# Parsing of options, both command line and config file
2988
1745
2989
1746
parser = argparse.ArgumentParser()
2990
1747
parser.add_argument("-v", "--version", action="version",
2991
version="%(prog)s {}".format(version),
1748
version = "%%(prog)s %s" % version,
2992
1749
help="show version number and exit")
2993
1750
parser.add_argument("-i", "--interface", metavar="IF",
2994
1751
help="Bind to interface IF")
3000
1757
help="Run self-test")
3001
1758
parser.add_argument("--debug", action="store_true",
3002
1759
help="Debug mode; run in foreground and log"
3003
" to terminal", default=None)
1760
" to terminal")
3004
1761
parser.add_argument("--debuglevel", metavar="LEVEL",
3005
1762
help="Debug level for stdout output")
3006
1763
parser.add_argument("--priority", help="GnuTLS"
3013
1770
" files")
3014
1771
parser.add_argument("--no-dbus", action="store_false",
3015
1772
dest="use_dbus", help="Do not provide D-Bus"
3016
" system bus interface", default=None)
1773
" system bus interface")
3017
1774
parser.add_argument("--no-ipv6", action="store_false",
3018
dest="use_ipv6", help="Do not use IPv6",
3019
default=None)
3020
parser.add_argument("--no-restore", action="store_false",
3021
dest="restore", help="Do not restore stored"
3022
" state", default=None)
3023
parser.add_argument("--socket", type=int,
3024
help="Specify a file descriptor to a network"
3025
" socket to use instead of creating one")
3026
parser.add_argument("--statedir", metavar="DIR",
3027
help="Directory to save/restore state in")
3028
parser.add_argument("--foreground", action="store_true",
3029
help="Run in foreground", default=None)
3030
parser.add_argument("--no-zeroconf", action="store_false",
3031
dest="zeroconf", help="Do not use Zeroconf",
3032
default=None)
3033
1775
dest="use_ipv6", help="Do not use IPv6")
3034
1776
options = parser.parse_args()
3035
1777
1778
if options.check:
1779
import doctest
1780
doctest.testmod()
1781
sys.exit()
1782
3036
1783
# Default values for config file for server-global settings
3037
if gnutls.has_rawpk:
3038
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3039
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3040
else:
3041
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3042
":+SIGN-DSA-SHA256")
3043
server_defaults = {"interface": "",
3044
"address": "",
3045
"port": "",
3046
"debug": "False",
3047
"priority": priority,
3048
"servicename": "Mandos",
3049
"use_dbus": "True",
3050
"use_ipv6": "True",
3051
"debuglevel": "",
3052
"restore": "True",
3053
"socket": "",
3054
"statedir": "/var/lib/mandos",
3055
"foreground": "False",
3056
"zeroconf": "True",
3057
}
3058
del priority
3059
1784
server_defaults = { "interface": "",
1785
"address": "",
1786
"port": "",
1787
"debug": "False",
1788
"priority":
1789
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1790
"servicename": "Mandos",
1791
"use_dbus": "True",
1792
"use_ipv6": "True",
1793
"debuglevel": "",
1794
}
1795
3060
1796
# Parse config file for server-global settings
3061
server_config = configparser.ConfigParser(server_defaults)
1797
server_config = configparser.SafeConfigParser(server_defaults)
3062
1798
del server_defaults
3063
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3064
# Convert the ConfigParser object to a dict
1799
server_config.read(os.path.join(options.configdir,
1800
"mandos.conf"))
1801
# Convert the SafeConfigParser object to a dict
3065
1802
server_settings = server_config.defaults()
3066
1803
# Use the appropriate methods on the non-string config options
3067
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3068
"foreground", "zeroconf"):
1804
for option in ("debug", "use_dbus", "use_ipv6"):
3069
1805
server_settings[option] = server_config.getboolean("DEFAULT",
3070
1806
option)
3071
1807
if server_settings["port"]:
3072
1808
server_settings["port"] = server_config.getint("DEFAULT",
3073
1809
"port")
3074
if server_settings["socket"]:
3075
server_settings["socket"] = server_config.getint("DEFAULT",
3076
"socket")
3077
# Later, stdin will, and stdout and stderr might, be dup'ed
3078
# over with an opened os.devnull. But we don't want this to
3079
# happen with a supplied network socket.
3080
if 0 <= server_settings["socket"] <= 2:
3081
server_settings["socket"] = os.dup(server_settings
3082
["socket"])
3083
1810
del server_config
3084
1811
3085
1812
# Override the settings from the config file with command line
3086
1813
# options, if set.
3087
1814
for option in ("interface", "address", "port", "debug",
3088
"priority", "servicename", "configdir", "use_dbus",
3089
"use_ipv6", "debuglevel", "restore", "statedir",
3090
"socket", "foreground", "zeroconf"):
1815
"priority", "servicename", "configdir",
1816
"use_dbus", "use_ipv6", "debuglevel"):
3091
1817
value = getattr(options, option)
3092
1818
if value is not None:
3093
1819
server_settings[option] = value
3094
1820
del options
3095
1821
# Force all strings to be unicode
3096
1822
for option in server_settings.keys():
3097
if isinstance(server_settings[option], bytes):
3098
server_settings[option] = (server_settings[option]
3099
.decode("utf-8"))
3100
# Force all boolean options to be boolean
3101
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3102
"foreground", "zeroconf"):
3103
server_settings[option] = bool(server_settings[option])
3104
# Debug implies foreground
3105
if server_settings["debug"]:
3106
server_settings["foreground"] = True
1823
if type(server_settings[option]) is str:
1824
server_settings[option] = unicode(server_settings[option])
3107
1825
# Now we have our good server settings in "server_settings"
3108
1826
3109
1827
##################################################################
3110
3111
if (not server_settings["zeroconf"]
3112
and not (server_settings["port"]
3113
or server_settings["socket"] != "")):
3114
parser.error("Needs port or socket to work without Zeroconf")
3115
1828
3116
1829
# For convenience
3117
1830
debug = server_settings["debug"]
3118
1831
debuglevel = server_settings["debuglevel"]
3119
1832
use_dbus = server_settings["use_dbus"]
3120
1833
use_ipv6 = server_settings["use_ipv6"]
3121
stored_state_path = os.path.join(server_settings["statedir"],
3122
stored_state_file)
3123
foreground = server_settings["foreground"]
3124
zeroconf = server_settings["zeroconf"]
3125
3126
if debug:
3127
initlogger(debug, logging.DEBUG)
3128
else:
3129
if not debuglevel:
3130
initlogger(debug)
3131
else:
3132
level = getattr(logging, debuglevel.upper())
3133
initlogger(debug, level)
3134
1834
3135
1835
if server_settings["servicename"] != "Mandos":
3136
syslogger.setFormatter(
3137
logging.Formatter('Mandos ({}) [%(process)d]:'
3138
' %(levelname)s: %(message)s'.format(
3139
server_settings["servicename"])))
3140
1836
syslogger.setFormatter(logging.Formatter
1837
('Mandos (%s) [%%(process)d]:'
1838
' %%(levelname)s: %%(message)s'
1839
% server_settings["servicename"]))
1840
3141
1841
# Parse config file with clients
3142
client_config = configparser.ConfigParser(Client.client_defaults)
1842
client_defaults = { "timeout": "5m",
1843
"extended_timeout": "15m",
1844
"interval": "2m",
1845
"checker": "fping -q -- %%(host)s",
1846
"host": "",
1847
"approval_delay": "0s",
1848
"approval_duration": "1s",
1849
}
1850
client_config = configparser.SafeConfigParser(client_defaults)
3143
1851
client_config.read(os.path.join(server_settings["configdir"],
3144
1852
"clients.conf"))
3145
1853
3146
1854
global mandos_dbus_service
3147
1855
mandos_dbus_service = None
3148
3149
socketfd = None
3150
if server_settings["socket"] != "":
3151
socketfd = server_settings["socket"]
3152
tcp_server = MandosServer(
3153
(server_settings["address"], server_settings["port"]),
3154
ClientHandler,
3155
interface=(server_settings["interface"] or None),
3156
use_ipv6=use_ipv6,
3157
gnutls_priority=server_settings["priority"],
3158
use_dbus=use_dbus,
3159
socketfd=socketfd)
3160
if not foreground:
3161
pidfilename = "/run/mandos.pid"
3162
if not os.path.isdir("/run/."):
3163
pidfilename = "/var/run/mandos.pid"
3164
pidfile = None
3165
try:
3166
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3167
except IOError as e:
3168
logger.error("Could not open file %r", pidfilename,
3169
exc_info=e)
3170
3171
for name, group in (("_mandos", "_mandos"),
3172
("mandos", "mandos"),
3173
("nobody", "nogroup")):
3174
try:
3175
uid = pwd.getpwnam(name).pw_uid
3176
gid = pwd.getpwnam(group).pw_gid
3177
break
1856
1857
tcp_server = MandosServer((server_settings["address"],
1858
server_settings["port"]),
1859
ClientHandler,
1860
interface=(server_settings["interface"]
1861
or None),
1862
use_ipv6=use_ipv6,
1863
gnutls_priority=
1864
server_settings["priority"],
1865
use_dbus=use_dbus)
1866
if not debug:
1867
pidfilename = "/var/run/mandos.pid"
1868
try:
1869
pidfile = open(pidfilename, "w")
1870
except IOError:
1871
logger.error("Could not open file %r", pidfilename)
1872
1873
try:
1874
uid = pwd.getpwnam("_mandos").pw_uid
1875
gid = pwd.getpwnam("_mandos").pw_gid
1876
except KeyError:
1877
try:
1878
uid = pwd.getpwnam("mandos").pw_uid
1879
gid = pwd.getpwnam("mandos").pw_gid
3178
1880
except KeyError:
3179
continue
3180
else:
3181
uid = 65534
3182
gid = 65534
1881
try:
1882
uid = pwd.getpwnam("nobody").pw_uid
1883
gid = pwd.getpwnam("nobody").pw_gid
1884
except KeyError:
1885
uid = 65534
1886
gid = 65534
3183
1887
try:
3184
1888
os.setgid(gid)
3185
1889
os.setuid(uid)
3186
if debug:
3187
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3188
gid))
3189
1890
except OSError as error:
3190
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3191
.format(uid, gid, os.strerror(error.errno)))
3192
if error.errno != errno.EPERM:
3193
raise
3194
1891
if error[0] != errno.EPERM:
1892
raise error
1893
1894
if not debug and not debuglevel:
1895
syslogger.setLevel(logging.WARNING)
1896
console.setLevel(logging.WARNING)
1897
if debuglevel:
1898
level = getattr(logging, debuglevel.upper())
1899
syslogger.setLevel(level)
1900
console.setLevel(level)
1901
3195
1902
if debug:
3196
1903
# Enable all possible GnuTLS debugging
3197
1904
3198
1905
# "Use a log level over 10 to enable all debugging options."
3199
1906
# - GnuTLS manual
3200
gnutls.global_set_log_level(11)
3201
3202
@gnutls.log_func
1907
gnutls.library.functions.gnutls_global_set_log_level(11)
1908
1909
@gnutls.library.types.gnutls_log_func
3203
1910
def debug_gnutls(level, string):
3204
logger.debug("GnuTLS: %s",
3205
string[:-1].decode("utf-8",
3206
errors="replace"))
3207
3208
gnutls.global_set_log_function(debug_gnutls)
3209
1911
logger.debug("GnuTLS: %s", string[:-1])
1912
1913
(gnutls.library.functions
1914
.gnutls_global_set_log_function(debug_gnutls))
1915
3210
1916
# Redirect stdin so all checkers get /dev/null
3211
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1917
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3212
1918
os.dup2(null, sys.stdin.fileno())
3213
1919
if null > 2:
3214
1920
os.close(null)
3215
1921
else:
1922
# No console logging
1923
logger.removeHandler(console)
1924
3216
1925
# Need to fork before connecting to D-Bus
3217
if not foreground:
1926
if not debug:
3218
1927
# Close all input and output, do double fork, etc.
3219
1928
daemon()
3220
3221
if gi.version_info < (3, 10, 2):
3222
# multiprocessing will use threads, so before we use GLib we
3223
# need to inform GLib that threads will be used.
3224
GLib.threads_init()
3225
1929
3226
1930
global main_loop
3227
1931
# From the Avahi example code
3228
DBusGMainLoop(set_as_default=True)
3229
main_loop = GLib.MainLoop()
1932
DBusGMainLoop(set_as_default=True )
1933
main_loop = gobject.MainLoop()
3230
1934
bus = dbus.SystemBus()
3231
1935
# End of Avahi example code
3232
1936
if use_dbus:
3233
1937
try:
3234
bus_name = dbus.service.BusName("se.recompile.Mandos",
3235
bus,
3236
do_not_queue=True)
3237
old_bus_name = dbus.service.BusName(
3238
"se.bsnet.fukt.Mandos", bus,
3239
do_not_queue=True)
3240
except dbus.exceptions.DBusException as e:
3241
logger.error("Disabling D-Bus:", exc_info=e)
1938
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1939
bus, do_not_queue=True)
1940
bus_name2 = dbus.service.BusName("se.recompile.Mandos",
1941
bus, do_not_queue=True)
1942
except dbus.exceptions.NameExistsException as e:
1943
logger.error(unicode(e) + ", disabling D-Bus")
3242
1944
use_dbus = False
3243
1945
server_settings["use_dbus"] = False
3244
1946
tcp_server.use_dbus = False
3245
if zeroconf:
3246
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3247
service = AvahiServiceToSyslog(
3248
name=server_settings["servicename"],
3249
servicetype="_mandos._tcp",
3250
protocol=protocol,
3251
bus=bus)
3252
if server_settings["interface"]:
3253
service.interface = if_nametoindex(
3254
server_settings["interface"].encode("utf-8"))
3255
1947
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1948
service = AvahiService(name = server_settings["servicename"],
1949
servicetype = "_mandos._tcp",
1950
protocol = protocol, bus = bus)
1951
if server_settings["interface"]:
1952
service.interface = (if_nametoindex
1953
(str(server_settings["interface"])))
1954
3256
1955
global multiprocessing_manager
3257
1956
multiprocessing_manager = multiprocessing.Manager()
3258
1957
3259
1958
client_class = Client
3260
1959
if use_dbus:
3261
client_class = functools.partial(ClientDBus, bus=bus)
3262
3263
client_settings = Client.config_parser(client_config)
3264
old_client_settings = {}
3265
clients_data = {}
3266
3267
# This is used to redirect stdout and stderr for checker processes
3268
global wnull
3269
wnull = open(os.devnull, "w") # A writable /dev/null
3270
# Only used if server is running in foreground but not in debug
3271
# mode
3272
if debug or not foreground:
3273
wnull.close()
3274
3275
# Get client data and settings from last running state.
3276
if server_settings["restore"]:
3277
try:
3278
with open(stored_state_path, "rb") as stored_state:
3279
if sys.version_info.major == 2:
3280
clients_data, old_client_settings = pickle.load(
3281
stored_state)
3282
else:
3283
bytes_clients_data, bytes_old_client_settings = (
3284
pickle.load(stored_state, encoding="bytes"))
3285
# Fix bytes to strings
3286
# clients_data
3287
# .keys()
3288
clients_data = {(key.decode("utf-8")
3289
if isinstance(key, bytes)
3290
else key): value
3291
for key, value in
3292
bytes_clients_data.items()}
3293
del bytes_clients_data
3294
for key in clients_data:
3295
value = {(k.decode("utf-8")
3296
if isinstance(k, bytes) else k): v
3297
for k, v in
3298
clients_data[key].items()}
3299
clients_data[key] = value
3300
# .client_structure
3301
value["client_structure"] = [
3302
(s.decode("utf-8")
3303
if isinstance(s, bytes)
3304
else s) for s in
3305
value["client_structure"]]
3306
# .name, .host, and .checker_command
3307
for k in ("name", "host", "checker_command"):
3308
if isinstance(value[k], bytes):
3309
value[k] = value[k].decode("utf-8")
3310
if "key_id" not in value:
3311
value["key_id"] = ""
3312
elif "fingerprint" not in value:
3313
value["fingerprint"] = ""
3314
# old_client_settings
3315
# .keys()
3316
old_client_settings = {
3317
(key.decode("utf-8")
3318
if isinstance(key, bytes)
3319
else key): value
3320
for key, value in
3321
bytes_old_client_settings.items()}
3322
del bytes_old_client_settings
3323
# .host and .checker_command
3324
for value in old_client_settings.values():
3325
for attribute in ("host", "checker_command"):
3326
if isinstance(value[attribute], bytes):
3327
value[attribute] = (value[attribute]
3328
.decode("utf-8"))
3329
os.remove(stored_state_path)
3330
except IOError as e:
3331
if e.errno == errno.ENOENT:
3332
logger.warning("Could not load persistent state:"
3333
" {}".format(os.strerror(e.errno)))
3334
else:
3335
logger.critical("Could not load persistent state:",
3336
exc_info=e)
3337
raise
3338
except EOFError as e:
3339
logger.warning("Could not load persistent state: "
3340
"EOFError:",
3341
exc_info=e)
3342
3343
with PGPEngine() as pgp:
3344
for client_name, client in clients_data.items():
3345
# Skip removed clients
3346
if client_name not in client_settings:
3347
continue
3348
3349
# Decide which value to use after restoring saved state.
3350
# We have three different values: Old config file,
3351
# new config file, and saved state.
3352
# New config value takes precedence if it differs from old
3353
# config value, otherwise use saved state.
3354
for name, value in client_settings[client_name].items():
3355
try:
3356
# For each value in new config, check if it
3357
# differs from the old config value (Except for
3358
# the "secret" attribute)
3359
if (name != "secret"
3360
and (value !=
3361
old_client_settings[client_name][name])):
3362
client[name] = value
3363
except KeyError:
3364
pass
3365
3366
# Clients who has passed its expire date can still be
3367
# enabled if its last checker was successful. A Client
3368
# whose checker succeeded before we stored its state is
3369
# assumed to have successfully run all checkers during
3370
# downtime.
3371
if client["enabled"]:
3372
if datetime.datetime.utcnow() >= client["expires"]:
3373
if not client["last_checked_ok"]:
3374
logger.warning(
3375
"disabling client {} - Client never "
3376
"performed a successful checker".format(
3377
client_name))
3378
client["enabled"] = False
3379
elif client["last_checker_status"] != 0:
3380
logger.warning(
3381
"disabling client {} - Client last"
3382
" checker failed with error code"
3383
" {}".format(
3384
client_name,
3385
client["last_checker_status"]))
3386
client["enabled"] = False
3387
else:
3388
client["expires"] = (
3389
datetime.datetime.utcnow()
3390
+ client["timeout"])
3391
logger.debug("Last checker succeeded,"
3392
" keeping {} enabled".format(
3393
client_name))
1960
client_class = functools.partial(ClientDBusTransitional, bus = bus)
1961
def client_config_items(config, section):
1962
special_settings = {
1963
"approved_by_default":
1964
lambda: config.getboolean(section,
1965
"approved_by_default"),
1966
}
1967
for name, value in config.items(section):
3394
1968
try:
3395
client["secret"] = pgp.decrypt(
3396
client["encrypted_secret"],
3397
client_settings[client_name]["secret"])
3398
except PGPError:
3399
# If decryption fails, we use secret from new settings
3400
logger.debug("Failed to decrypt {} old secret".format(
3401
client_name))
3402
client["secret"] = (client_settings[client_name]
3403
["secret"])
3404
3405
# Add/remove clients based on new changes made to config
3406
for client_name in (set(old_client_settings)
3407
- set(client_settings)):
3408
del clients_data[client_name]
3409
for client_name in (set(client_settings)
3410
- set(old_client_settings)):
3411
clients_data[client_name] = client_settings[client_name]
3412
3413
# Create all client objects
3414
for client_name, client in clients_data.items():
3415
tcp_server.clients[client_name] = client_class(
3416
name=client_name,
3417
settings=client,
3418
server_settings=server_settings)
3419
1969
yield (name, special_settings[name]())
1970
except KeyError:
1971
yield (name, value)
1972
1973
tcp_server.clients.update(set(
1974
client_class(name = section,
1975
config= dict(client_config_items(
1976
client_config, section)))
1977
for section in client_config.sections()))
3420
1978
if not tcp_server.clients:
3421
1979
logger.warning("No clients defined")
3422
3423
if not foreground:
3424
if pidfile is not None:
3425
pid = os.getpid()
3426
try:
3427
with pidfile:
3428
print(pid, file=pidfile)
3429
except IOError:
3430
logger.error("Could not write to file %r with PID %d",
3431
pidfilename, pid)
3432
del pidfile
1980
1981
if not debug:
1982
try:
1983
with pidfile:
1984
pid = os.getpid()
1985
pidfile.write(str(pid) + "\n".encode("utf-8"))
1986
del pidfile
1987
except IOError:
1988
logger.error("Could not write to file %r with PID %d",
1989
pidfilename, pid)
1990
except NameError:
1991
# "pidfile" was never created
1992
pass
3433
1993
del pidfilename
3434
3435
for termsig in (signal.SIGHUP, signal.SIGTERM):
3436
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3437
lambda: main_loop.quit() and False)
3438
1994
1995
signal.signal(signal.SIGINT, signal.SIG_IGN)
1996
1997
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1998
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1999
3439
2000
if use_dbus:
3440
3441
@alternate_dbus_interfaces(
3442
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3443
class MandosDBusService(DBusObjectWithObjectManager):
2001
class MandosDBusService(dbus.service.Object):
3444
2002
"""A D-Bus proxy object"""
3445
3446
2003
def __init__(self):
3447
2004
dbus.service.Object.__init__(self, bus, "/")
3448
3449
_interface = "se.recompile.Mandos"
3450
2005
_interface = "se.bsnet.fukt.Mandos"
2006
3451
2007
@dbus.service.signal(_interface, signature="o")
3452
2008
def ClientAdded(self, objpath):
3453
2009
"D-Bus signal"
3454
2010
pass
3455
2011
3456
2012
@dbus.service.signal(_interface, signature="ss")
3457
def ClientNotFound(self, key_id, address):
2013
def ClientNotFound(self, fingerprint, address):
3458
2014
"D-Bus signal"
3459
2015
pass
3460
3461
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3462
"true"})
2016
3463
2017
@dbus.service.signal(_interface, signature="os")
3464
2018
def ClientRemoved(self, objpath, name):
3465
2019
"D-Bus signal"
3466
2020
pass
3467
3468
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3469
"true"})
2021
3470
2022
@dbus.service.method(_interface, out_signature="ao")
3471
2023
def GetAllClients(self):
3472
2024
"D-Bus method"
3473
return dbus.Array(c.dbus_object_path for c in
3474
tcp_server.clients.values())
3475
3476
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3477
"true"})
2025
return dbus.Array(c.dbus_object_path
2026
for c in tcp_server.clients)
2027
3478
2028
@dbus.service.method(_interface,
3479
2029
out_signature="a{oa{sv}}")
3480
2030
def GetAllClientsWithProperties(self):
3481
2031
"D-Bus method"
3482
2032
return dbus.Dictionary(
3483
{c.dbus_object_path: c.GetAll(
3484
"se.recompile.Mandos.Client")
3485
for c in tcp_server.clients.values()},
2033
((c.dbus_object_path, c.GetAll(""))
2034
for c in tcp_server.clients),
3486
2035
signature="oa{sv}")
3487
2036
3488
2037
@dbus.service.method(_interface, in_signature="o")
3489
2038
def RemoveClient(self, object_path):
3490
2039
"D-Bus method"
3491
for c in tcp_server.clients.values():
2040
for c in tcp_server.clients:
3492
2041
if c.dbus_object_path == object_path:
3493
del tcp_server.clients[c.name]
2042
tcp_server.clients.remove(c)
3494
2043
c.remove_from_connection()
3495
# Don't signal the disabling
2044
# Don't signal anything except ClientRemoved
3496
2045
c.disable(quiet=True)
3497
# Emit D-Bus signal for removal
3498
self.client_removed_signal(c)
2046
# Emit D-Bus signal
2047
self.ClientRemoved(object_path, c.name)
3499
2048
return
3500
2049
raise KeyError(object_path)
3501
2050
3502
2051
del _interface
3503
3504
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3505
out_signature="a{oa{sa{sv}}}")
3506
def GetManagedObjects(self):
3507
"""D-Bus method"""
3508
return dbus.Dictionary(
3509
{client.dbus_object_path:
3510
dbus.Dictionary(
3511
{interface: client.GetAll(interface)
3512
for interface in
3513
client._get_all_interface_names()})
3514
for client in tcp_server.clients.values()})
3515
3516
def client_added_signal(self, client):
3517
"""Send the new standard signal and the old signal"""
3518
if use_dbus:
3519
# New standard signal
3520
self.InterfacesAdded(
3521
client.dbus_object_path,
3522
dbus.Dictionary(
3523
{interface: client.GetAll(interface)
3524
for interface in
3525
client._get_all_interface_names()}))
3526
# Old signal
3527
self.ClientAdded(client.dbus_object_path)
3528
3529
def client_removed_signal(self, client):
3530
"""Send the new standard signal and the old signal"""
3531
if use_dbus:
3532
# New standard signal
3533
self.InterfacesRemoved(
3534
client.dbus_object_path,
3535
client._get_all_interface_names())
3536
# Old signal
3537
self.ClientRemoved(client.dbus_object_path,
3538
client.name)
3539
3540
mandos_dbus_service = MandosDBusService()
3541
3542
# Save modules to variables to exempt the modules from being
3543
# unloaded before the function registered with atexit() is run.
3544
mp = multiprocessing
3545
wn = wnull
3546
2052
2053
class MandosDBusServiceTransitional(MandosDBusService):
2054
__metaclass__ = transitional_dbus_metaclass
2055
mandos_dbus_service = MandosDBusServiceTransitional()
2056
3547
2057
def cleanup():
3548
2058
"Cleanup function; run on exit"
3549
if zeroconf:
3550
service.cleanup()
3551
3552
mp.active_children()
3553
wn.close()
3554
if not (tcp_server.clients or client_settings):
3555
return
3556
3557
# Store client before exiting. Secrets are encrypted with key
3558
# based on what config file has. If config file is
3559
# removed/edited, old secret will thus be unrecovable.
3560
clients = {}
3561
with PGPEngine() as pgp:
3562
for client in tcp_server.clients.values():
3563
key = client_settings[client.name]["secret"]
3564
client.encrypted_secret = pgp.encrypt(client.secret,
3565
key)
3566
client_dict = {}
3567
3568
# A list of attributes that can not be pickled
3569
# + secret.
3570
exclude = {"bus", "changedstate", "secret",
3571
"checker", "server_settings"}
3572
for name, typ in inspect.getmembers(dbus.service
3573
.Object):
3574
exclude.add(name)
3575
3576
client_dict["encrypted_secret"] = (client
3577
.encrypted_secret)
3578
for attr in client.client_structure:
3579
if attr not in exclude:
3580
client_dict[attr] = getattr(client, attr)
3581
3582
clients[client.name] = client_dict
3583
del client_settings[client.name]["secret"]
3584
3585
try:
3586
with tempfile.NamedTemporaryFile(
3587
mode='wb',
3588
suffix=".pickle",
3589
prefix='clients-',
3590
dir=os.path.dirname(stored_state_path),
3591
delete=False) as stored_state:
3592
pickle.dump((clients, client_settings), stored_state,
3593
protocol=2)
3594
tempname = stored_state.name
3595
os.rename(tempname, stored_state_path)
3596
except (IOError, OSError) as e:
3597
if not debug:
3598
try:
3599
os.remove(tempname)
3600
except NameError:
3601
pass
3602
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3603
logger.warning("Could not save persistent state: {}"
3604
.format(os.strerror(e.errno)))
3605
else:
3606
logger.warning("Could not save persistent state:",
3607
exc_info=e)
3608
raise
3609
3610
# Delete all clients, and settings from config
2059
service.cleanup()
2060
3611
2061
while tcp_server.clients:
3612
name, client = tcp_server.clients.popitem()
2062
client = tcp_server.clients.pop()
3613
2063
if use_dbus:
3614
2064
client.remove_from_connection()
3615
# Don't signal the disabling
2065
client.disable_hook = None
2066
# Don't signal anything except ClientRemoved
3616
2067
client.disable(quiet=True)
3617
# Emit D-Bus signal for removal
3618
2068
if use_dbus:
3619
mandos_dbus_service.client_removed_signal(client)
3620
client_settings.clear()
3621
2069
# Emit D-Bus signal
2070
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2071
client.name)
2072
3622
2073
atexit.register(cleanup)
3623
3624
for client in tcp_server.clients.values():
2074
2075
for client in tcp_server.clients:
3625
2076
if use_dbus:
3626
# Emit D-Bus signal for adding
3627
mandos_dbus_service.client_added_signal(client)
3628
# Need to initiate checking of clients
3629
if client.enabled:
3630
client.init_checker()
3631
2077
# Emit D-Bus signal
2078
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2079
client.enable()
2080
3632
2081
tcp_server.enable()
3633
2082
tcp_server.server_activate()
3634
2083
3635
2084
# Find out what port we got
3636
if zeroconf:
3637
service.port = tcp_server.socket.getsockname()[1]
2085
service.port = tcp_server.socket.getsockname()[1]
3638
2086
if use_ipv6:
3639
2087
logger.info("Now listening on address %r, port %d,"
3640
" flowinfo %d, scope_id %d",
3641
*tcp_server.socket.getsockname())
2088
" flowinfo %d, scope_id %d"
2089
% tcp_server.socket.getsockname())
3642
2090
else: # IPv4
3643
logger.info("Now listening on address %r, port %d",
3644
*tcp_server.socket.getsockname())
3645
3646
# service.interface = tcp_server.socket.getsockname()[3]
3647
2091
logger.info("Now listening on address %r, port %d"
2092
% tcp_server.socket.getsockname())
2093
2094
#service.interface = tcp_server.socket.getsockname()[3]
2095
3648
2096
try:
3649
if zeroconf:
3650
# From the Avahi example code
3651
try:
3652
service.activate()
3653
except dbus.exceptions.DBusException as error:
3654
logger.critical("D-Bus Exception", exc_info=error)
3655
cleanup()
3656
sys.exit(1)
3657
# End of Avahi example code
3658
3659
GLib.io_add_watch(
3660
GLib.IOChannel.unix_new(tcp_server.fileno()),
3661
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3662
lambda *args, **kwargs: (tcp_server.handle_request
3663
(*args[2:], **kwargs) or True))
3664
2097
# From the Avahi example code
2098
try:
2099
service.activate()
2100
except dbus.exceptions.DBusException as error:
2101
logger.critical("DBusException: %s", error)
2102
cleanup()
2103
sys.exit(1)
2104
# End of Avahi example code
2105
2106
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2107
lambda *args, **kwargs:
2108
(tcp_server.handle_request
2109
(*args[2:], **kwargs) or True))
2110
3665
2111
logger.debug("Starting main loop")
3666
2112
main_loop.run()
3667
2113
except AvahiError as error:
3668
logger.critical("Avahi Error", exc_info=error)
2114
logger.critical("AvahiError: %s", error)
3669
2115
cleanup()
3670
2116
sys.exit(1)
3671
2117
except KeyboardInterrupt:
3676
2122
# Must run before the D-Bus bus name gets deregistered
3677
2123
cleanup()
3678
2124
3679
3680
def should_only_run_tests():
3681
parser = argparse.ArgumentParser(add_help=False)
3682
parser.add_argument("--check", action='store_true')
3683
args, unknown_args = parser.parse_known_args()
3684
run_tests = args.check
3685
if run_tests:
3686
# Remove --check argument from sys.argv
3687
sys.argv[1:] = unknown_args
3688
return run_tests
3689
3690
# Add all tests from doctest strings
3691
def load_tests(loader, tests, none):
3692
import doctest
3693
tests.addTests(doctest.DocTestSuite())
3694
return tests
3695
2125
3696
2126
if __name__ == '__main__':
3697
try:
3698
if should_only_run_tests():
3699
# Call using ./mandos --check [--verbose]
3700
unittest.main()
3701
else:
3702
main()
3703
finally:
3704
logging.shutdown()
2127
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0