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- Committer: teddy at recompile
- Date: 2019-12-05 03:38:07 UTC
- mto: This revision was merged to the branch mainline in revision 396.
- Revision ID: teddy@recompile.se-20191205033807-6awt45zpgp194vl1
From: Frans Spiesschaert <Frans.Spiesschaert@yucom.be>
Add Dutch debconf translation
* debian/po/nl.po: New.
Acked-by: Teddy Hogeborn <teddy@recompile.se>
Add Dutch debconf translation
* debian/po/nl.po: New.
Acked-by: Teddy Hogeborn <teddy@recompile.se>
- files added:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
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
#
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 © 2008-2011 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
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
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
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
32
# Contact the authors at <mandos@recompile.se>.
33
#
33
34
34
35
from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
36
37
37
import SocketServer as socketserver
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
38
47
import socket
39
48
import argparse
40
49
import datetime
41
50
import errno
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
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
49
55
import sys
50
56
import re
51
57
import os
60
66
import struct
61
67
import fcntl
62
68
import functools
63
import cPickle as pickle
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
64
73
import multiprocessing
74
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
65
81
66
82
import dbus
67
83
import dbus.service
68
import gobject
69
import avahi
84
import gi
85
from gi.repository import GLib
70
86
from dbus.mainloop.glib import DBusGMainLoop
71
87
import ctypes
72
88
import ctypes.util
73
89
import xml.dom.minidom
74
90
import inspect
75
91
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
str = unicode
95
96
# Show warnings by default
97
if not sys.warnoptions:
98
import warnings
99
warnings.simplefilter("default")
100
101
# Try to find the value of SO_BINDTODEVICE:
76
102
try:
103
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
104
# newer, and it is also the most natural place for it:
77
105
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
78
106
except AttributeError:
79
107
try:
108
# This is where SO_BINDTODEVICE was up to and including Python
109
# 2.6, and also 3.2:
80
110
from IN import SO_BINDTODEVICE
81
111
except ImportError:
82
SO_BINDTODEVICE = None
83
84
85
version = "1.3.1"
86
87
#logger = logging.getLogger('mandos')
88
logger = logging.Logger('mandos')
89
syslogger = (logging.handlers.SysLogHandler
90
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
92
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
95
logger.addHandler(syslogger)
96
97
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
99
' %(levelname)s:'
100
' %(message)s'))
101
logger.addHandler(console)
112
# In Python 2.7 it seems to have been removed entirely.
113
# Try running the C preprocessor:
114
try:
115
cc = subprocess.Popen(["cc", "--language=c", "-E",
116
"/dev/stdin"],
117
stdin=subprocess.PIPE,
118
stdout=subprocess.PIPE)
119
stdout = cc.communicate(
120
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
121
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
122
except (OSError, ValueError, IndexError):
123
# No value found
124
SO_BINDTODEVICE = None
125
126
if sys.version_info < (3, 2):
127
configparser.Configparser = configparser.SafeConfigParser
128
129
version = "1.8.9"
130
stored_state_file = "clients.pickle"
131
132
logger = logging.getLogger()
133
logging.captureWarnings(True) # Show warnings via the logging system
134
syslogger = None
135
136
try:
137
if_nametoindex = ctypes.cdll.LoadLibrary(
138
ctypes.util.find_library("c")).if_nametoindex
139
except (OSError, AttributeError):
140
141
def if_nametoindex(interface):
142
"Get an interface index the hard way, i.e. using fcntl()"
143
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
144
with contextlib.closing(socket.socket()) as s:
145
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
146
struct.pack(b"16s16x", interface))
147
interface_index = struct.unpack("I", ifreq[16:20])[0]
148
return interface_index
149
150
151
def copy_function(func):
152
"""Make a copy of a function"""
153
if sys.version_info.major == 2:
154
return types.FunctionType(func.func_code,
155
func.func_globals,
156
func.func_name,
157
func.func_defaults,
158
func.func_closure)
159
else:
160
return types.FunctionType(func.__code__,
161
func.__globals__,
162
func.__name__,
163
func.__defaults__,
164
func.__closure__)
165
166
167
def initlogger(debug, level=logging.WARNING):
168
"""init logger and add loglevel"""
169
170
global syslogger
171
syslogger = (logging.handlers.SysLogHandler(
172
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
173
address="/dev/log"))
174
syslogger.setFormatter(logging.Formatter
175
('Mandos [%(process)d]: %(levelname)s:'
176
' %(message)s'))
177
logger.addHandler(syslogger)
178
179
if debug:
180
console = logging.StreamHandler()
181
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
182
' [%(process)d]:'
183
' %(levelname)s:'
184
' %(message)s'))
185
logger.addHandler(console)
186
logger.setLevel(level)
187
188
189
class PGPError(Exception):
190
"""Exception if encryption/decryption fails"""
191
pass
192
193
194
class PGPEngine:
195
"""A simple class for OpenPGP symmetric encryption & decryption"""
196
197
def __init__(self):
198
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
199
self.gpg = "gpg"
200
try:
201
output = subprocess.check_output(["gpgconf"])
202
for line in output.splitlines():
203
name, text, path = line.split(b":")
204
if name == b"gpg":
205
self.gpg = path
206
break
207
except OSError as e:
208
if e.errno != errno.ENOENT:
209
raise
210
self.gnupgargs = ['--batch',
211
'--homedir', self.tempdir,
212
'--force-mdc',
213
'--quiet']
214
# Only GPG version 1 has the --no-use-agent option.
215
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
216
self.gnupgargs.append("--no-use-agent")
217
218
def __enter__(self):
219
return self
220
221
def __exit__(self, exc_type, exc_value, traceback):
222
self._cleanup()
223
return False
224
225
def __del__(self):
226
self._cleanup()
227
228
def _cleanup(self):
229
if self.tempdir is not None:
230
# Delete contents of tempdir
231
for root, dirs, files in os.walk(self.tempdir,
232
topdown=False):
233
for filename in files:
234
os.remove(os.path.join(root, filename))
235
for dirname in dirs:
236
os.rmdir(os.path.join(root, dirname))
237
# Remove tempdir
238
os.rmdir(self.tempdir)
239
self.tempdir = None
240
241
def password_encode(self, password):
242
# Passphrase can not be empty and can not contain newlines or
243
# NUL bytes. So we prefix it and hex encode it.
244
encoded = b"mandos" + binascii.hexlify(password)
245
if len(encoded) > 2048:
246
# GnuPG can't handle long passwords, so encode differently
247
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
248
.replace(b"\n", b"\\n")
249
.replace(b"\0", b"\\x00"))
250
return encoded
251
252
def encrypt(self, data, password):
253
passphrase = self.password_encode(password)
254
with tempfile.NamedTemporaryFile(
255
dir=self.tempdir) as passfile:
256
passfile.write(passphrase)
257
passfile.flush()
258
proc = subprocess.Popen([self.gpg, '--symmetric',
259
'--passphrase-file',
260
passfile.name]
261
+ self.gnupgargs,
262
stdin=subprocess.PIPE,
263
stdout=subprocess.PIPE,
264
stderr=subprocess.PIPE)
265
ciphertext, err = proc.communicate(input=data)
266
if proc.returncode != 0:
267
raise PGPError(err)
268
return ciphertext
269
270
def decrypt(self, data, password):
271
passphrase = self.password_encode(password)
272
with tempfile.NamedTemporaryFile(
273
dir=self.tempdir) as passfile:
274
passfile.write(passphrase)
275
passfile.flush()
276
proc = subprocess.Popen([self.gpg, '--decrypt',
277
'--passphrase-file',
278
passfile.name]
279
+ self.gnupgargs,
280
stdin=subprocess.PIPE,
281
stdout=subprocess.PIPE,
282
stderr=subprocess.PIPE)
283
decrypted_plaintext, err = proc.communicate(input=data)
284
if proc.returncode != 0:
285
raise PGPError(err)
286
return decrypted_plaintext
287
288
289
# Pretend that we have an Avahi module
290
class avahi:
291
"""This isn't so much a class as it is a module-like namespace."""
292
IF_UNSPEC = -1 # avahi-common/address.h
293
PROTO_UNSPEC = -1 # avahi-common/address.h
294
PROTO_INET = 0 # avahi-common/address.h
295
PROTO_INET6 = 1 # avahi-common/address.h
296
DBUS_NAME = "org.freedesktop.Avahi"
297
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
298
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
299
DBUS_PATH_SERVER = "/"
300
301
@staticmethod
302
def string_array_to_txt_array(t):
303
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
304
for s in t), signature="ay")
305
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
306
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
307
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
308
SERVER_INVALID = 0 # avahi-common/defs.h
309
SERVER_REGISTERING = 1 # avahi-common/defs.h
310
SERVER_RUNNING = 2 # avahi-common/defs.h
311
SERVER_COLLISION = 3 # avahi-common/defs.h
312
SERVER_FAILURE = 4 # avahi-common/defs.h
313
102
314
103
315
class AvahiError(Exception):
104
316
def __init__(self, value, *args, **kwargs):
105
317
self.value = value
106
super(AvahiError, self).__init__(value, *args, **kwargs)
107
def __unicode__(self):
108
return unicode(repr(self.value))
318
return super(AvahiError, self).__init__(value, *args,
319
**kwargs)
320
109
321
110
322
class AvahiServiceError(AvahiError):
111
323
pass
112
324
325
113
326
class AvahiGroupError(AvahiError):
114
327
pass
115
328
116
329
117
class AvahiService(object):
330
class AvahiService:
118
331
"""An Avahi (Zeroconf) service.
119
332
120
333
Attributes:
121
334
interface: integer; avahi.IF_UNSPEC or an interface index.
122
335
Used to optionally bind to the specified interface.
123
336
name: string; Example: 'Mandos'
124
337
type: string; Example: '_mandos._tcp'.
125
See <http://www.dns-sd.org/ServiceTypes.html>
338
See <https://www.iana.org/assignments/service-names-port-numbers>
126
339
port: integer; what port to announce
127
340
TXT: list of strings; TXT record for the service
128
341
domain: string; Domain to publish on, default to .local if empty.
134
347
server: D-Bus Server
135
348
bus: dbus.SystemBus()
136
349
"""
137
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
138
servicetype = None, port = None, TXT = None,
139
domain = "", host = "", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
350
351
def __init__(self,
352
interface=avahi.IF_UNSPEC,
353
name=None,
354
servicetype=None,
355
port=None,
356
TXT=None,
357
domain="",
358
host="",
359
max_renames=32768,
360
protocol=avahi.PROTO_UNSPEC,
361
bus=None):
141
362
self.interface = interface
142
363
self.name = name
143
364
self.type = servicetype
152
373
self.server = None
153
374
self.bus = bus
154
375
self.entry_group_state_changed_match = None
155
def rename(self):
376
377
def rename(self, remove=True):
156
378
"""Derived from the Avahi example code"""
157
379
if self.rename_count >= self.max_renames:
158
380
logger.critical("No suitable Zeroconf service name found"
159
381
" after %i retries, exiting.",
160
382
self.rename_count)
161
383
raise AvahiServiceError("Too many renames")
162
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
384
self.name = str(
385
self.server.GetAlternativeServiceName(self.name))
386
self.rename_count += 1
163
387
logger.info("Changing Zeroconf service name to %r ...",
164
388
self.name)
165
syslogger.setFormatter(logging.Formatter
166
('Mandos (%s) [%%(process)d]:'
167
' %%(levelname)s: %%(message)s'
168
% self.name))
169
self.remove()
389
if remove:
390
self.remove()
170
391
try:
171
392
self.add()
172
393
except dbus.exceptions.DBusException as error:
173
logger.critical("DBusException: %s", error)
174
self.cleanup()
175
os._exit(1)
176
self.rename_count += 1
394
if (error.get_dbus_name()
395
== "org.freedesktop.Avahi.CollisionError"):
396
logger.info("Local Zeroconf service name collision.")
397
return self.rename(remove=False)
398
else:
399
logger.critical("D-Bus Exception", exc_info=error)
400
self.cleanup()
401
os._exit(1)
402
177
403
def remove(self):
178
404
"""Derived from the Avahi example code"""
179
405
if self.entry_group_state_changed_match is not None:
181
407
self.entry_group_state_changed_match = None
182
408
if self.group is not None:
183
409
self.group.Reset()
410
184
411
def add(self):
185
412
"""Derived from the Avahi example code"""
186
413
self.remove()
191
418
avahi.DBUS_INTERFACE_ENTRY_GROUP)
192
419
self.entry_group_state_changed_match = (
193
420
self.group.connect_to_signal(
194
'StateChanged', self .entry_group_state_changed))
421
'StateChanged', self.entry_group_state_changed))
195
422
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
196
423
self.name, self.type)
197
424
self.group.AddService(
203
430
dbus.UInt16(self.port),
204
431
avahi.string_array_to_txt_array(self.TXT))
205
432
self.group.Commit()
433
206
434
def entry_group_state_changed(self, state, error):
207
435
"""Derived from the Avahi example code"""
208
436
logger.debug("Avahi entry group state change: %i", state)
209
437
210
438
if state == avahi.ENTRY_GROUP_ESTABLISHED:
211
439
logger.debug("Zeroconf service established.")
212
440
elif state == avahi.ENTRY_GROUP_COLLISION:
214
442
self.rename()
215
443
elif state == avahi.ENTRY_GROUP_FAILURE:
216
444
logger.critical("Avahi: Error in group state changed %s",
217
unicode(error))
218
raise AvahiGroupError("State changed: %s"
219
% unicode(error))
445
str(error))
446
raise AvahiGroupError("State changed: {!s}".format(error))
447
220
448
def cleanup(self):
221
449
"""Derived from the Avahi example code"""
222
450
if self.group is not None:
223
451
try:
224
452
self.group.Free()
225
453
except (dbus.exceptions.UnknownMethodException,
226
dbus.exceptions.DBusException) as e:
454
dbus.exceptions.DBusException):
227
455
pass
228
456
self.group = None
229
457
self.remove()
458
230
459
def server_state_changed(self, state, error=None):
231
460
"""Derived from the Avahi example code"""
232
461
logger.debug("Avahi server state change: %i", state)
233
bad_states = { avahi.SERVER_INVALID:
234
"Zeroconf server invalid",
235
avahi.SERVER_REGISTERING: None,
236
avahi.SERVER_COLLISION:
237
"Zeroconf server name collision",
238
avahi.SERVER_FAILURE:
239
"Zeroconf server failure" }
462
bad_states = {
463
avahi.SERVER_INVALID: "Zeroconf server invalid",
464
avahi.SERVER_REGISTERING: None,
465
avahi.SERVER_COLLISION: "Zeroconf server name collision",
466
avahi.SERVER_FAILURE: "Zeroconf server failure",
467
}
240
468
if state in bad_states:
241
469
if bad_states[state] is not None:
242
470
if error is None:
245
473
logger.error(bad_states[state] + ": %r", error)
246
474
self.cleanup()
247
475
elif state == avahi.SERVER_RUNNING:
248
self.add()
476
try:
477
self.add()
478
except dbus.exceptions.DBusException as error:
479
if (error.get_dbus_name()
480
== "org.freedesktop.Avahi.CollisionError"):
481
logger.info("Local Zeroconf service name"
482
" collision.")
483
return self.rename(remove=False)
484
else:
485
logger.critical("D-Bus Exception", exc_info=error)
486
self.cleanup()
487
os._exit(1)
249
488
else:
250
489
if error is None:
251
490
logger.debug("Unknown state: %r", state)
252
491
else:
253
492
logger.debug("Unknown state: %r: %r", state, error)
493
254
494
def activate(self):
255
495
"""Derived from the Avahi example code"""
256
496
if self.server is None:
260
500
follow_name_owner_changes=True),
261
501
avahi.DBUS_INTERFACE_SERVER)
262
502
self.server.connect_to_signal("StateChanged",
263
self.server_state_changed)
503
self.server_state_changed)
264
504
self.server_state_changed(self.server.GetState())
265
505
266
506
267
class Client(object):
507
class AvahiServiceToSyslog(AvahiService):
508
def rename(self, *args, **kwargs):
509
"""Add the new name to the syslog messages"""
510
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
511
syslogger.setFormatter(logging.Formatter(
512
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
513
.format(self.name)))
514
return ret
515
516
517
# Pretend that we have a GnuTLS module
518
class gnutls:
519
"""This isn't so much a class as it is a module-like namespace."""
520
521
library = ctypes.util.find_library("gnutls")
522
if library is None:
523
library = ctypes.util.find_library("gnutls-deb0")
524
_library = ctypes.cdll.LoadLibrary(library)
525
del library
526
527
# Unless otherwise indicated, the constants and types below are
528
# all from the gnutls/gnutls.h C header file.
529
530
# Constants
531
E_SUCCESS = 0
532
E_INTERRUPTED = -52
533
E_AGAIN = -28
534
CRT_OPENPGP = 2
535
CRT_RAWPK = 3
536
CLIENT = 2
537
SHUT_RDWR = 0
538
CRD_CERTIFICATE = 1
539
E_NO_CERTIFICATE_FOUND = -49
540
X509_FMT_DER = 0
541
NO_TICKETS = 1<<10
542
ENABLE_RAWPK = 1<<18
543
CTYPE_PEERS = 3
544
KEYID_USE_SHA256 = 1 # gnutls/x509.h
545
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
546
547
# Types
548
class session_int(ctypes.Structure):
549
_fields_ = []
550
session_t = ctypes.POINTER(session_int)
551
552
class certificate_credentials_st(ctypes.Structure):
553
_fields_ = []
554
certificate_credentials_t = ctypes.POINTER(
555
certificate_credentials_st)
556
certificate_type_t = ctypes.c_int
557
558
class datum_t(ctypes.Structure):
559
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
560
('size', ctypes.c_uint)]
561
562
class openpgp_crt_int(ctypes.Structure):
563
_fields_ = []
564
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
565
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
566
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
567
credentials_type_t = ctypes.c_int
568
transport_ptr_t = ctypes.c_void_p
569
close_request_t = ctypes.c_int
570
571
# Exceptions
572
class Error(Exception):
573
def __init__(self, message=None, code=None, args=()):
574
# Default usage is by a message string, but if a return
575
# code is passed, convert it to a string with
576
# gnutls.strerror()
577
self.code = code
578
if message is None and code is not None:
579
message = gnutls.strerror(code)
580
return super(gnutls.Error, self).__init__(
581
message, *args)
582
583
class CertificateSecurityError(Error):
584
pass
585
586
# Classes
587
class Credentials:
588
def __init__(self):
589
self._c_object = gnutls.certificate_credentials_t()
590
gnutls.certificate_allocate_credentials(
591
ctypes.byref(self._c_object))
592
self.type = gnutls.CRD_CERTIFICATE
593
594
def __del__(self):
595
gnutls.certificate_free_credentials(self._c_object)
596
597
class ClientSession:
598
def __init__(self, socket, credentials=None):
599
self._c_object = gnutls.session_t()
600
gnutls_flags = gnutls.CLIENT
601
if gnutls.check_version(b"3.5.6"):
602
gnutls_flags |= gnutls.NO_TICKETS
603
if gnutls.has_rawpk:
604
gnutls_flags |= gnutls.ENABLE_RAWPK
605
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
606
del gnutls_flags
607
gnutls.set_default_priority(self._c_object)
608
gnutls.transport_set_ptr(self._c_object, socket.fileno())
609
gnutls.handshake_set_private_extensions(self._c_object,
610
True)
611
self.socket = socket
612
if credentials is None:
613
credentials = gnutls.Credentials()
614
gnutls.credentials_set(self._c_object, credentials.type,
615
ctypes.cast(credentials._c_object,
616
ctypes.c_void_p))
617
self.credentials = credentials
618
619
def __del__(self):
620
gnutls.deinit(self._c_object)
621
622
def handshake(self):
623
return gnutls.handshake(self._c_object)
624
625
def send(self, data):
626
data = bytes(data)
627
data_len = len(data)
628
while data_len > 0:
629
data_len -= gnutls.record_send(self._c_object,
630
data[-data_len:],
631
data_len)
632
633
def bye(self):
634
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
635
636
# Error handling functions
637
def _error_code(result):
638
"""A function to raise exceptions on errors, suitable
639
for the 'restype' attribute on ctypes functions"""
640
if result >= 0:
641
return result
642
if result == gnutls.E_NO_CERTIFICATE_FOUND:
643
raise gnutls.CertificateSecurityError(code=result)
644
raise gnutls.Error(code=result)
645
646
def _retry_on_error(result, func, arguments):
647
"""A function to retry on some errors, suitable
648
for the 'errcheck' attribute on ctypes functions"""
649
while result < 0:
650
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
651
return _error_code(result)
652
result = func(*arguments)
653
return result
654
655
# Unless otherwise indicated, the function declarations below are
656
# all from the gnutls/gnutls.h C header file.
657
658
# Functions
659
priority_set_direct = _library.gnutls_priority_set_direct
660
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
661
ctypes.POINTER(ctypes.c_char_p)]
662
priority_set_direct.restype = _error_code
663
664
init = _library.gnutls_init
665
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
666
init.restype = _error_code
667
668
set_default_priority = _library.gnutls_set_default_priority
669
set_default_priority.argtypes = [session_t]
670
set_default_priority.restype = _error_code
671
672
record_send = _library.gnutls_record_send
673
record_send.argtypes = [session_t, ctypes.c_void_p,
674
ctypes.c_size_t]
675
record_send.restype = ctypes.c_ssize_t
676
record_send.errcheck = _retry_on_error
677
678
certificate_allocate_credentials = (
679
_library.gnutls_certificate_allocate_credentials)
680
certificate_allocate_credentials.argtypes = [
681
ctypes.POINTER(certificate_credentials_t)]
682
certificate_allocate_credentials.restype = _error_code
683
684
certificate_free_credentials = (
685
_library.gnutls_certificate_free_credentials)
686
certificate_free_credentials.argtypes = [
687
certificate_credentials_t]
688
certificate_free_credentials.restype = None
689
690
handshake_set_private_extensions = (
691
_library.gnutls_handshake_set_private_extensions)
692
handshake_set_private_extensions.argtypes = [session_t,
693
ctypes.c_int]
694
handshake_set_private_extensions.restype = None
695
696
credentials_set = _library.gnutls_credentials_set
697
credentials_set.argtypes = [session_t, credentials_type_t,
698
ctypes.c_void_p]
699
credentials_set.restype = _error_code
700
701
strerror = _library.gnutls_strerror
702
strerror.argtypes = [ctypes.c_int]
703
strerror.restype = ctypes.c_char_p
704
705
certificate_type_get = _library.gnutls_certificate_type_get
706
certificate_type_get.argtypes = [session_t]
707
certificate_type_get.restype = _error_code
708
709
certificate_get_peers = _library.gnutls_certificate_get_peers
710
certificate_get_peers.argtypes = [session_t,
711
ctypes.POINTER(ctypes.c_uint)]
712
certificate_get_peers.restype = ctypes.POINTER(datum_t)
713
714
global_set_log_level = _library.gnutls_global_set_log_level
715
global_set_log_level.argtypes = [ctypes.c_int]
716
global_set_log_level.restype = None
717
718
global_set_log_function = _library.gnutls_global_set_log_function
719
global_set_log_function.argtypes = [log_func]
720
global_set_log_function.restype = None
721
722
deinit = _library.gnutls_deinit
723
deinit.argtypes = [session_t]
724
deinit.restype = None
725
726
handshake = _library.gnutls_handshake
727
handshake.argtypes = [session_t]
728
handshake.restype = _error_code
729
handshake.errcheck = _retry_on_error
730
731
transport_set_ptr = _library.gnutls_transport_set_ptr
732
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
733
transport_set_ptr.restype = None
734
735
bye = _library.gnutls_bye
736
bye.argtypes = [session_t, close_request_t]
737
bye.restype = _error_code
738
bye.errcheck = _retry_on_error
739
740
check_version = _library.gnutls_check_version
741
check_version.argtypes = [ctypes.c_char_p]
742
check_version.restype = ctypes.c_char_p
743
744
_need_version = b"3.3.0"
745
if check_version(_need_version) is None:
746
raise self.Error("Needs GnuTLS {} or later"
747
.format(_need_version))
748
749
_tls_rawpk_version = b"3.6.6"
750
has_rawpk = bool(check_version(_tls_rawpk_version))
751
752
if has_rawpk:
753
# Types
754
class pubkey_st(ctypes.Structure):
755
_fields = []
756
pubkey_t = ctypes.POINTER(pubkey_st)
757
758
x509_crt_fmt_t = ctypes.c_int
759
760
# All the function declarations below are from gnutls/abstract.h
761
pubkey_init = _library.gnutls_pubkey_init
762
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
763
pubkey_init.restype = _error_code
764
765
pubkey_import = _library.gnutls_pubkey_import
766
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
767
x509_crt_fmt_t]
768
pubkey_import.restype = _error_code
769
770
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
771
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
772
ctypes.POINTER(ctypes.c_ubyte),
773
ctypes.POINTER(ctypes.c_size_t)]
774
pubkey_get_key_id.restype = _error_code
775
776
pubkey_deinit = _library.gnutls_pubkey_deinit
777
pubkey_deinit.argtypes = [pubkey_t]
778
pubkey_deinit.restype = None
779
else:
780
# All the function declarations below are from gnutls/openpgp.h
781
782
openpgp_crt_init = _library.gnutls_openpgp_crt_init
783
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
784
openpgp_crt_init.restype = _error_code
785
786
openpgp_crt_import = _library.gnutls_openpgp_crt_import
787
openpgp_crt_import.argtypes = [openpgp_crt_t,
788
ctypes.POINTER(datum_t),
789
openpgp_crt_fmt_t]
790
openpgp_crt_import.restype = _error_code
791
792
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
793
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
794
ctypes.POINTER(ctypes.c_uint)]
795
openpgp_crt_verify_self.restype = _error_code
796
797
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
798
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
799
openpgp_crt_deinit.restype = None
800
801
openpgp_crt_get_fingerprint = (
802
_library.gnutls_openpgp_crt_get_fingerprint)
803
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
804
ctypes.c_void_p,
805
ctypes.POINTER(
806
ctypes.c_size_t)]
807
openpgp_crt_get_fingerprint.restype = _error_code
808
809
if check_version(b"3.6.4"):
810
certificate_type_get2 = _library.gnutls_certificate_type_get2
811
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
812
certificate_type_get2.restype = _error_code
813
814
# Remove non-public functions
815
del _error_code, _retry_on_error
816
817
818
def call_pipe(connection, # : multiprocessing.Connection
819
func, *args, **kwargs):
820
"""This function is meant to be called by multiprocessing.Process
821
822
This function runs func(*args, **kwargs), and writes the resulting
823
return value on the provided multiprocessing.Connection.
824
"""
825
connection.send(func(*args, **kwargs))
826
connection.close()
827
828
829
class Client:
268
830
"""A representation of a client host served by this server.
269
831
270
832
Attributes:
271
_approved: bool(); 'None' if not yet approved/disapproved
833
approved: bool(); 'None' if not yet approved/disapproved
272
834
approval_delay: datetime.timedelta(); Time to wait for approval
273
835
approval_duration: datetime.timedelta(); Duration of one approval
274
checker: subprocess.Popen(); a running checker process used
275
to see if the client lives.
276
'None' if no process is running.
277
checker_callback_tag: a gobject event source tag, or None
836
checker: multiprocessing.Process(); a running checker process used
837
to see if the client lives. 'None' if no process is
838
running.
839
checker_callback_tag: a GLib event source tag, or None
278
840
checker_command: string; External command which is run to check
279
841
if client lives. %() expansions are done at
280
842
runtime with vars(self) as dict, so that for
281
843
instance %(name)s can be used in the command.
282
checker_initiator_tag: a gobject event source tag, or None
844
checker_initiator_tag: a GLib event source tag, or None
283
845
created: datetime.datetime(); (UTC) object creation
846
client_structure: Object describing what attributes a client has
847
and is used for storing the client at exit
284
848
current_checker_command: string; current running checker_command
285
disable_hook: If set, called by disable() as disable_hook(self)
286
disable_initiator_tag: a gobject event source tag, or None
849
disable_initiator_tag: a GLib event source tag, or None
287
850
enabled: bool()
288
851
fingerprint: string (40 or 32 hexadecimal digits); used to
289
uniquely identify the client
852
uniquely identify an OpenPGP client
853
key_id: string (64 hexadecimal digits); used to uniquely identify
854
a client using raw public keys
290
855
host: string; available for use by the checker command
291
856
interval: datetime.timedelta(); How often to start a new checker
292
857
last_approval_request: datetime.datetime(); (UTC) or None
293
858
last_checked_ok: datetime.datetime(); (UTC) or None
294
last_enabled: datetime.datetime(); (UTC)
859
last_checker_status: integer between 0 and 255 reflecting exit
860
status of last checker. -1 reflects crashed
861
checker, -2 means no checker completed yet.
862
last_checker_signal: The signal which killed the last checker, if
863
last_checker_status is -1
864
last_enabled: datetime.datetime(); (UTC) or None
295
865
name: string; from the config file, used in log messages and
296
866
D-Bus identifiers
297
867
secret: bytestring; sent verbatim (over TLS) to client
298
868
timeout: datetime.timedelta(); How long from last_checked_ok
299
869
until this client is disabled
300
extended_timeout: extra long timeout when password has been sent
870
extended_timeout: extra long timeout when secret has been sent
301
871
runtime_expansions: Allowed attributes for runtime expansion.
302
872
expires: datetime.datetime(); time (UTC) when a client will be
303
873
disabled, or None
874
server_settings: The server_settings dict from main()
304
875
"""
305
876
306
877
runtime_expansions = ("approval_delay", "approval_duration",
307
"created", "enabled", "fingerprint",
308
"host", "interval", "last_checked_ok",
878
"created", "enabled", "expires", "key_id",
879
"fingerprint", "host", "interval",
880
"last_approval_request", "last_checked_ok",
309
881
"last_enabled", "name", "timeout")
310
882
client_defaults = {
883
"timeout": "PT5M",
884
"extended_timeout": "PT15M",
885
"interval": "PT2M",
886
"checker": "fping -q -- %%(host)s",
887
"host": "",
888
"approval_delay": "PT0S",
889
"approval_duration": "PT1S",
890
"approved_by_default": "True",
891
"enabled": "True",
892
}
893
311
894
@staticmethod
312
def _timedelta_to_milliseconds(td):
313
"Convert a datetime.timedelta() to milliseconds"
314
return ((td.days * 24 * 60 * 60 * 1000)
315
+ (td.seconds * 1000)
316
+ (td.microseconds // 1000))
317
318
def timeout_milliseconds(self):
319
"Return the 'timeout' attribute in milliseconds"
320
return self._timedelta_to_milliseconds(self.timeout)
321
322
def extended_timeout_milliseconds(self):
323
"Return the 'extended_timeout' attribute in milliseconds"
324
return self._timedelta_to_milliseconds(self.extended_timeout)
325
326
def interval_milliseconds(self):
327
"Return the 'interval' attribute in milliseconds"
328
return self._timedelta_to_milliseconds(self.interval)
329
330
def approval_delay_milliseconds(self):
331
return self._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."""
895
def config_parser(config):
896
"""Construct a new dict of client settings of this form:
897
{ client_name: {setting_name: value, ...}, ...}
898
with exceptions for any special settings as defined above.
899
NOTE: Must be a pure function. Must return the same result
900
value given the same arguments.
901
"""
902
settings = {}
903
for client_name in config.sections():
904
section = dict(config.items(client_name))
905
client = settings[client_name] = {}
906
907
client["host"] = section["host"]
908
# Reformat values from string types to Python types
909
client["approved_by_default"] = config.getboolean(
910
client_name, "approved_by_default")
911
client["enabled"] = config.getboolean(client_name,
912
"enabled")
913
914
# Uppercase and remove spaces from key_id and fingerprint
915
# for later comparison purposes with return value from the
916
# key_id() and fingerprint() functions
917
client["key_id"] = (section.get("key_id", "").upper()
918
.replace(" ", ""))
919
client["fingerprint"] = (section["fingerprint"].upper()
920
.replace(" ", ""))
921
if "secret" in section:
922
client["secret"] = codecs.decode(section["secret"]
923
.encode("utf-8"),
924
"base64")
925
elif "secfile" in section:
926
with open(os.path.expanduser(os.path.expandvars
927
(section["secfile"])),
928
"rb") as secfile:
929
client["secret"] = secfile.read()
930
else:
931
raise TypeError("No secret or secfile for section {}"
932
.format(section))
933
client["timeout"] = string_to_delta(section["timeout"])
934
client["extended_timeout"] = string_to_delta(
935
section["extended_timeout"])
936
client["interval"] = string_to_delta(section["interval"])
937
client["approval_delay"] = string_to_delta(
938
section["approval_delay"])
939
client["approval_duration"] = string_to_delta(
940
section["approval_duration"])
941
client["checker_command"] = section["checker"]
942
client["last_approval_request"] = None
943
client["last_checked_ok"] = None
944
client["last_checker_status"] = -2
945
946
return settings
947
948
def __init__(self, settings, name=None, server_settings=None):
337
949
self.name = name
338
if config is None:
339
config = {}
950
if server_settings is None:
951
server_settings = {}
952
self.server_settings = server_settings
953
# adding all client settings
954
for setting, value in settings.items():
955
setattr(self, setting, value)
956
957
if self.enabled:
958
if not hasattr(self, "last_enabled"):
959
self.last_enabled = datetime.datetime.utcnow()
960
if not hasattr(self, "expires"):
961
self.expires = (datetime.datetime.utcnow()
962
+ self.timeout)
963
else:
964
self.last_enabled = None
965
self.expires = None
966
340
967
logger.debug("Creating client %r", self.name)
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(" ", ""))
968
logger.debug(" Key ID: %s", self.key_id)
346
969
logger.debug(" Fingerprint: %s", self.fingerprint)
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
970
self.created = settings.get("created",
971
datetime.datetime.utcnow())
972
973
# attributes specific for this server instance
367
974
self.checker = None
368
975
self.checker_initiator_tag = None
369
976
self.disable_initiator_tag = None
370
self.expires = None
371
977
self.checker_callback_tag = None
372
self.checker_command = config["checker"]
373
978
self.current_checker_command = None
374
self.last_connect = None
375
self._approved = None
376
self.approved_by_default = config.get("approved_by_default",
377
True)
979
self.approved = None
378
980
self.approvals_pending = 0
379
self.approval_delay = string_to_delta(
380
config["approval_delay"])
381
self.approval_duration = string_to_delta(
382
config["approval_duration"])
383
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
384
981
self.changedstate = multiprocessing_manager.Condition(
982
multiprocessing_manager.Lock())
983
self.client_structure = [attr
984
for attr in self.__dict__.keys()
985
if not attr.startswith("_")]
986
self.client_structure.append("client_structure")
987
988
for name, t in inspect.getmembers(
989
type(self), lambda obj: isinstance(obj, property)):
990
if not name.startswith("_"):
991
self.client_structure.append(name)
992
993
# Send notice to process children that client state has changed
385
994
def send_changedstate(self):
386
self.changedstate.acquire()
387
self.changedstate.notify_all()
388
self.changedstate.release()
389
995
with self.changedstate:
996
self.changedstate.notify_all()
997
390
998
def enable(self):
391
999
"""Start this client's checker and timeout hooks"""
392
1000
if getattr(self, "enabled", False):
393
1001
# Already enabled
394
1002
return
395
self.send_changedstate()
1003
self.expires = datetime.datetime.utcnow() + self.timeout
1004
self.enabled = True
396
1005
self.last_enabled = datetime.datetime.utcnow()
397
# Schedule a new checker to be started an 'interval' from now,
398
# and every interval from then on.
399
self.checker_initiator_tag = (gobject.timeout_add
400
(self.interval_milliseconds(),
401
self.start_checker))
402
# Schedule a disable() when 'timeout' has passed
403
self.expires = datetime.datetime.utcnow() + self.timeout
404
self.disable_initiator_tag = (gobject.timeout_add
405
(self.timeout_milliseconds(),
406
self.disable))
407
self.enabled = True
408
# Also start a new checker *right now*.
409
self.start_checker()
410
1006
self.init_checker()
1007
self.send_changedstate()
1008
411
1009
def disable(self, quiet=True):
412
1010
"""Disable this client."""
413
1011
if not getattr(self, "enabled", False):
414
1012
return False
415
1013
if not quiet:
416
self.send_changedstate()
417
if not quiet:
418
1014
logger.info("Disabling client %s", self.name)
419
if getattr(self, "disable_initiator_tag", False):
420
gobject.source_remove(self.disable_initiator_tag)
1015
if getattr(self, "disable_initiator_tag", None) is not None:
1016
GLib.source_remove(self.disable_initiator_tag)
421
1017
self.disable_initiator_tag = None
422
1018
self.expires = None
423
if getattr(self, "checker_initiator_tag", False):
424
gobject.source_remove(self.checker_initiator_tag)
1019
if getattr(self, "checker_initiator_tag", None) is not None:
1020
GLib.source_remove(self.checker_initiator_tag)
425
1021
self.checker_initiator_tag = None
426
1022
self.stop_checker()
427
if self.disable_hook:
428
self.disable_hook(self)
429
1023
self.enabled = False
430
# Do not run this again if called by a gobject.timeout_add
1024
if not quiet:
1025
self.send_changedstate()
1026
# Do not run this again if called by a GLib.timeout_add
431
1027
return False
432
1028
433
1029
def __del__(self):
434
self.disable_hook = None
435
1030
self.disable()
436
437
def checker_callback(self, pid, condition, command):
1031
1032
def init_checker(self):
1033
# Schedule a new checker to be started an 'interval' from now,
1034
# and every interval from then on.
1035
if self.checker_initiator_tag is not None:
1036
GLib.source_remove(self.checker_initiator_tag)
1037
self.checker_initiator_tag = GLib.timeout_add(
1038
int(self.interval.total_seconds() * 1000),
1039
self.start_checker)
1040
# Schedule a disable() when 'timeout' has passed
1041
if self.disable_initiator_tag is not None:
1042
GLib.source_remove(self.disable_initiator_tag)
1043
self.disable_initiator_tag = GLib.timeout_add(
1044
int(self.timeout.total_seconds() * 1000), self.disable)
1045
# Also start a new checker *right now*.
1046
self.start_checker()
1047
1048
def checker_callback(self, source, condition, connection,
1049
command):
438
1050
"""The checker has completed, so take appropriate actions."""
1051
# Read return code from connection (see call_pipe)
1052
returncode = connection.recv()
1053
connection.close()
1054
if self.checker is not None:
1055
self.checker.join()
439
1056
self.checker_callback_tag = None
440
1057
self.checker = None
441
if os.WIFEXITED(condition):
442
exitstatus = os.WEXITSTATUS(condition)
443
if exitstatus == 0:
1058
1059
if returncode >= 0:
1060
self.last_checker_status = returncode
1061
self.last_checker_signal = None
1062
if self.last_checker_status == 0:
444
1063
logger.info("Checker for %(name)s succeeded",
445
1064
vars(self))
446
1065
self.checked_ok()
447
1066
else:
448
logger.info("Checker for %(name)s failed",
449
vars(self))
1067
logger.info("Checker for %(name)s failed", vars(self))
450
1068
else:
1069
self.last_checker_status = -1
1070
self.last_checker_signal = -returncode
451
1071
logger.warning("Checker for %(name)s crashed?",
452
1072
vars(self))
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
"""
1073
return False
1074
1075
def checked_ok(self):
1076
"""Assert that the client has been seen, alive and well."""
1077
self.last_checked_ok = datetime.datetime.utcnow()
1078
self.last_checker_status = 0
1079
self.last_checker_signal = None
1080
self.bump_timeout()
1081
1082
def bump_timeout(self, timeout=None):
1083
"""Bump up the timeout for this client."""
460
1084
if timeout is None:
461
1085
timeout = self.timeout
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
(self._timedelta_to_milliseconds(timeout),
467
self.disable))
468
1086
if self.disable_initiator_tag is not None:
1087
GLib.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
1089
if getattr(self, "enabled", False):
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(timeout.total_seconds() * 1000), self.disable)
1092
self.expires = datetime.datetime.utcnow() + timeout
1093
469
1094
def need_approval(self):
470
1095
self.last_approval_request = datetime.datetime.utcnow()
471
1096
472
1097
def start_checker(self):
473
1098
"""Start a new checker subprocess if one is not running.
474
1099
475
1100
If a checker already exists, leave it running and do
476
1101
nothing."""
477
1102
# The reason for not killing a running checker is that if we
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
1103
# did that, and if a checker (for some reason) started running
1104
# slowly and taking more than 'interval' time, then the client
1105
# would inevitably timeout, since no checker would get a
1106
# chance to run to completion. If we instead leave running
482
1107
# checkers alone, the checker would have to take more time
483
1108
# than 'timeout' for the client to be disabled, which is as it
484
1109
# should be.
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)
1110
1111
if self.checker is not None and not self.checker.is_alive():
1112
logger.warning("Checker was not alive; joining")
1113
self.checker.join()
1114
self.checker = None
499
1115
# Start a new checker if needed
500
1116
if self.checker is None:
1117
# Escape attributes for the shell
1118
escaped_attrs = {
1119
attr: re.escape(str(getattr(self, attr)))
1120
for attr in self.runtime_expansions}
501
1121
try:
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
1122
command = self.checker_command % escaped_attrs
1123
except TypeError as error:
1124
logger.error('Could not format string "%s"',
1125
self.checker_command,
1126
exc_info=error)
1127
return True # Try again later
520
1128
self.current_checker_command = command
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
1129
logger.info("Starting checker %r for %s", command,
1130
self.name)
1131
# We don't need to redirect stdout and stderr, since
1132
# in normal mode, that is already done by daemon(),
1133
# and in debug mode we don't want to. (Stdin is
1134
# always replaced by /dev/null.)
1135
# The exception is when not debugging but nevertheless
1136
# running in the foreground; use the previously
1137
# created wnull.
1138
popen_args = {"close_fds": True,
1139
"shell": True,
1140
"cwd": "/"}
1141
if (not self.server_settings["debug"]
1142
and self.server_settings["foreground"]):
1143
popen_args.update({"stdout": wnull,
1144
"stderr": wnull})
1145
pipe = multiprocessing.Pipe(duplex=False)
1146
self.checker = multiprocessing.Process(
1147
target=call_pipe,
1148
args=(pipe[1], subprocess.call, command),
1149
kwargs=popen_args)
1150
self.checker.start()
1151
self.checker_callback_tag = GLib.io_add_watch(
1152
GLib.IOChannel.unix_new(pipe[0].fileno()),
1153
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1154
self.checker_callback, pipe[0], command)
1155
# Re-run this periodically if run by GLib.timeout_add
545
1156
return True
546
1157
547
1158
def stop_checker(self):
548
1159
"""Force the checker process, if any, to stop."""
549
1160
if self.checker_callback_tag:
550
gobject.source_remove(self.checker_callback_tag)
1161
GLib.source_remove(self.checker_callback_tag)
551
1162
self.checker_callback_tag = None
552
1163
if getattr(self, "checker", None) is None:
553
1164
return
554
1165
logger.debug("Stopping checker for %(name)s", vars(self))
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
1166
self.checker.terminate()
563
1167
self.checker = None
564
1168
565
def dbus_service_property(dbus_interface, signature="v",
566
access="readwrite", byte_arrays=False):
1169
1170
def dbus_service_property(dbus_interface,
1171
signature="v",
1172
access="readwrite",
1173
byte_arrays=False):
567
1174
"""Decorators for marking methods of a DBusObjectWithProperties to
568
1175
become properties on the D-Bus.
569
1176
570
1177
The decorated method will be called with no arguments by "Get"
571
1178
and with one argument by "Set".
572
1179
573
1180
The parameters, where they are supported, are the same as
574
1181
dbus.service.method, except there is only "signature", since the
575
1182
type from Get() and the type sent to Set() is the same.
578
1185
# "Set" method, so we fail early here:
579
1186
if byte_arrays and signature != "ay":
580
1187
raise ValueError("Byte arrays not supported for non-'ay'"
581
" signature %r" % signature)
1188
" signature {!r}".format(signature))
1189
582
1190
def decorator(func):
583
1191
func._dbus_is_property = True
584
1192
func._dbus_interface = dbus_interface
587
1195
func._dbus_name = func.__name__
588
1196
if func._dbus_name.endswith("_dbus_property"):
589
1197
func._dbus_name = func._dbus_name[:-14]
590
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
591
return func
1198
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1199
return func
1200
1201
return decorator
1202
1203
1204
def dbus_interface_annotations(dbus_interface):
1205
"""Decorator for marking functions returning interface annotations
1206
1207
Usage:
1208
1209
@dbus_interface_annotations("org.example.Interface")
1210
def _foo(self): # Function name does not matter
1211
return {"org.freedesktop.DBus.Deprecated": "true",
1212
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1213
"false"}
1214
"""
1215
1216
def decorator(func):
1217
func._dbus_is_interface = True
1218
func._dbus_interface = dbus_interface
1219
func._dbus_name = dbus_interface
1220
return func
1221
1222
return decorator
1223
1224
1225
def dbus_annotations(annotations):
1226
"""Decorator to annotate D-Bus methods, signals or properties
1227
Usage:
1228
1229
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property."
1231
"EmitsChangedSignal": "false"})
1232
@dbus_service_property("org.example.Interface", signature="b",
1233
access="r")
1234
def Property_dbus_property(self):
1235
return dbus.Boolean(False)
1236
1237
See also the DBusObjectWithAnnotations class.
1238
"""
1239
1240
def decorator(func):
1241
func._dbus_annotations = annotations
1242
return func
1243
592
1244
return decorator
593
1245
594
1246
595
1247
class DBusPropertyException(dbus.exceptions.DBusException):
596
1248
"""A base class for D-Bus property-related exceptions
597
1249
"""
598
def __unicode__(self):
599
return unicode(str(self))
1250
pass
600
1251
601
1252
602
1253
class DBusPropertyAccessException(DBusPropertyException):
611
1262
pass
612
1263
613
1264
614
class DBusObjectWithProperties(dbus.service.Object):
1265
class DBusObjectWithAnnotations(dbus.service.Object):
1266
"""A D-Bus object with annotations.
1267
1268
Classes inheriting from this can use the dbus_annotations
1269
decorator to add annotations to methods or signals.
1270
"""
1271
1272
@staticmethod
1273
def _is_dbus_thing(thing):
1274
"""Returns a function testing if an attribute is a D-Bus thing
1275
1276
If called like _is_dbus_thing("method") it returns a function
1277
suitable for use as predicate to inspect.getmembers().
1278
"""
1279
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1280
False)
1281
1282
def _get_all_dbus_things(self, thing):
1283
"""Returns a generator of (name, attribute) pairs
1284
"""
1285
return ((getattr(athing.__get__(self), "_dbus_name", name),
1286
athing.__get__(self))
1287
for cls in self.__class__.__mro__
1288
for name, athing in
1289
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1290
1291
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1292
out_signature="s",
1293
path_keyword='object_path',
1294
connection_keyword='connection')
1295
def Introspect(self, object_path, connection):
1296
"""Overloading of standard D-Bus method.
1297
1298
Inserts annotation tags on methods and signals.
1299
"""
1300
xmlstring = dbus.service.Object.Introspect(self, object_path,
1301
connection)
1302
try:
1303
document = xml.dom.minidom.parseString(xmlstring)
1304
1305
for if_tag in document.getElementsByTagName("interface"):
1306
# Add annotation tags
1307
for typ in ("method", "signal"):
1308
for tag in if_tag.getElementsByTagName(typ):
1309
annots = dict()
1310
for name, prop in (self.
1311
_get_all_dbus_things(typ)):
1312
if (name == tag.getAttribute("name")
1313
and prop._dbus_interface
1314
== if_tag.getAttribute("name")):
1315
annots.update(getattr(
1316
prop, "_dbus_annotations", {}))
1317
for name, value in annots.items():
1318
ann_tag = document.createElement(
1319
"annotation")
1320
ann_tag.setAttribute("name", name)
1321
ann_tag.setAttribute("value", value)
1322
tag.appendChild(ann_tag)
1323
# Add interface annotation tags
1324
for annotation, value in dict(
1325
itertools.chain.from_iterable(
1326
annotations().items()
1327
for name, annotations
1328
in self._get_all_dbus_things("interface")
1329
if name == if_tag.getAttribute("name")
1330
)).items():
1331
ann_tag = document.createElement("annotation")
1332
ann_tag.setAttribute("name", annotation)
1333
ann_tag.setAttribute("value", value)
1334
if_tag.appendChild(ann_tag)
1335
# Fix argument name for the Introspect method itself
1336
if (if_tag.getAttribute("name")
1337
== dbus.INTROSPECTABLE_IFACE):
1338
for cn in if_tag.getElementsByTagName("method"):
1339
if cn.getAttribute("name") == "Introspect":
1340
for arg in cn.getElementsByTagName("arg"):
1341
if (arg.getAttribute("direction")
1342
== "out"):
1343
arg.setAttribute("name",
1344
"xml_data")
1345
xmlstring = document.toxml("utf-8")
1346
document.unlink()
1347
except (AttributeError, xml.dom.DOMException,
1348
xml.parsers.expat.ExpatError) as error:
1349
logger.error("Failed to override Introspection method",
1350
exc_info=error)
1351
return xmlstring
1352
1353
1354
class DBusObjectWithProperties(DBusObjectWithAnnotations):
615
1355
"""A D-Bus object with properties.
616
1356
617
1357
Classes inheriting from this can use the dbus_service_property
618
1358
decorator to expose methods as D-Bus properties. It exposes the
619
1359
standard Get(), Set(), and GetAll() methods on the D-Bus.
620
1360
"""
621
622
@staticmethod
623
def _is_dbus_property(obj):
624
return getattr(obj, "_dbus_is_property", False)
625
626
def _get_all_dbus_properties(self):
627
"""Returns a generator of (name, attribute) pairs
628
"""
629
return ((prop._dbus_name, prop)
630
for name, prop in
631
inspect.getmembers(self, self._is_dbus_property))
632
1361
633
1362
def _get_dbus_property(self, interface_name, property_name):
634
1363
"""Returns a bound method if one exists which is a D-Bus
635
1364
property with the specified name and interface.
636
1365
"""
637
for name in (property_name,
638
property_name + "_dbus_property"):
639
prop = getattr(self, name, None)
640
if (prop is None
641
or not self._is_dbus_property(prop)
642
or prop._dbus_name != property_name
643
or (interface_name and prop._dbus_interface
644
and interface_name != prop._dbus_interface)):
645
continue
646
return prop
1366
for cls in self.__class__.__mro__:
1367
for name, value in inspect.getmembers(
1368
cls, self._is_dbus_thing("property")):
1369
if (value._dbus_name == property_name
1370
and value._dbus_interface == interface_name):
1371
return value.__get__(self)
1372
647
1373
# No such property
648
raise DBusPropertyNotFound(self.dbus_object_path + ":"
649
+ interface_name + "."
650
+ property_name)
651
652
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1374
raise DBusPropertyNotFound("{}:{}.{}".format(
1375
self.dbus_object_path, interface_name, property_name))
1376
1377
@classmethod
1378
def _get_all_interface_names(cls):
1379
"""Get a sequence of all interfaces supported by an object"""
1380
return (name for name in set(getattr(getattr(x, attr),
1381
"_dbus_interface", None)
1382
for x in (inspect.getmro(cls))
1383
for attr in dir(x))
1384
if name is not None)
1385
1386
@dbus.service.method(dbus.PROPERTIES_IFACE,
1387
in_signature="ss",
653
1388
out_signature="v")
654
1389
def Get(self, interface_name, property_name):
655
1390
"""Standard D-Bus property Get() method, see D-Bus standard.
661
1396
if not hasattr(value, "variant_level"):
662
1397
return value
663
1398
return type(value)(value, variant_level=value.variant_level+1)
664
1399
665
1400
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
666
1401
def Set(self, interface_name, property_name, value):
667
1402
"""Standard D-Bus property Set() method, see D-Bus standard.
673
1408
# The byte_arrays option is not supported yet on
674
1409
# signatures other than "ay".
675
1410
if prop._dbus_signature != "ay":
676
raise ValueError
677
value = dbus.ByteArray(''.join(unichr(byte)
678
for byte in value))
1411
raise ValueError("Byte arrays not supported for non-"
1412
"'ay' signature {!r}"
1413
.format(prop._dbus_signature))
1414
value = dbus.ByteArray(bytes(value))
679
1415
prop(value)
680
681
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1416
1417
@dbus.service.method(dbus.PROPERTIES_IFACE,
1418
in_signature="s",
682
1419
out_signature="a{sv}")
683
1420
def GetAll(self, interface_name):
684
1421
"""Standard D-Bus property GetAll() method, see D-Bus
686
1423
687
1424
Note: Will not include properties with access="write".
688
1425
"""
689
all = {}
690
for name, prop in self._get_all_dbus_properties():
1426
properties = {}
1427
for name, prop in self._get_all_dbus_things("property"):
691
1428
if (interface_name
692
1429
and interface_name != prop._dbus_interface):
693
1430
# Interface non-empty but did not match
697
1434
continue
698
1435
value = prop()
699
1436
if not hasattr(value, "variant_level"):
700
all[name] = value
1437
properties[name] = value
701
1438
continue
702
all[name] = type(value)(value, variant_level=
703
value.variant_level+1)
704
return dbus.Dictionary(all, signature="sv")
705
1439
properties[name] = type(value)(
1440
value, variant_level=value.variant_level + 1)
1441
return dbus.Dictionary(properties, signature="sv")
1442
1443
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1444
def PropertiesChanged(self, interface_name, changed_properties,
1445
invalidated_properties):
1446
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1447
standard.
1448
"""
1449
pass
1450
706
1451
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
707
1452
out_signature="s",
708
1453
path_keyword='object_path',
709
1454
connection_keyword='connection')
710
1455
def Introspect(self, object_path, connection):
711
"""Standard D-Bus method, overloaded to insert property tags.
1456
"""Overloading of standard D-Bus method.
1457
1458
Inserts property tags and interface annotation tags.
712
1459
"""
713
xmlstring = dbus.service.Object.Introspect(self, object_path,
714
connection)
1460
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1461
object_path,
1462
connection)
715
1463
try:
716
1464
document = xml.dom.minidom.parseString(xmlstring)
1465
717
1466
def make_tag(document, name, prop):
718
1467
e = document.createElement("property")
719
1468
e.setAttribute("name", name)
720
1469
e.setAttribute("type", prop._dbus_signature)
721
1470
e.setAttribute("access", prop._dbus_access)
722
1471
return e
1472
723
1473
for if_tag in document.getElementsByTagName("interface"):
1474
# Add property tags
724
1475
for tag in (make_tag(document, name, prop)
725
1476
for name, prop
726
in self._get_all_dbus_properties()
1477
in self._get_all_dbus_things("property")
727
1478
if prop._dbus_interface
728
1479
== if_tag.getAttribute("name")):
729
1480
if_tag.appendChild(tag)
1481
# Add annotation tags for properties
1482
for tag in if_tag.getElementsByTagName("property"):
1483
annots = dict()
1484
for name, prop in self._get_all_dbus_things(
1485
"property"):
1486
if (name == tag.getAttribute("name")
1487
and prop._dbus_interface
1488
== if_tag.getAttribute("name")):
1489
annots.update(getattr(
1490
prop, "_dbus_annotations", {}))
1491
for name, value in annots.items():
1492
ann_tag = document.createElement(
1493
"annotation")
1494
ann_tag.setAttribute("name", name)
1495
ann_tag.setAttribute("value", value)
1496
tag.appendChild(ann_tag)
730
1497
# Add the names to the return values for the
731
1498
# "org.freedesktop.DBus.Properties" methods
732
1499
if (if_tag.getAttribute("name")
747
1514
except (AttributeError, xml.dom.DOMException,
748
1515
xml.parsers.expat.ExpatError) as error:
749
1516
logger.error("Failed to override Introspection method",
750
error)
751
return xmlstring
752
753
1517
exc_info=error)
1518
return xmlstring
1519
1520
1521
try:
1522
dbus.OBJECT_MANAGER_IFACE
1523
except AttributeError:
1524
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1525
1526
1527
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1528
"""A D-Bus object with an ObjectManager.
1529
1530
Classes inheriting from this exposes the standard
1531
GetManagedObjects call and the InterfacesAdded and
1532
InterfacesRemoved signals on the standard
1533
"org.freedesktop.DBus.ObjectManager" interface.
1534
1535
Note: No signals are sent automatically; they must be sent
1536
manually.
1537
"""
1538
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1539
out_signature="a{oa{sa{sv}}}")
1540
def GetManagedObjects(self):
1541
"""This function must be overridden"""
1542
raise NotImplementedError()
1543
1544
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1545
signature="oa{sa{sv}}")
1546
def InterfacesAdded(self, object_path, interfaces_and_properties):
1547
pass
1548
1549
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1550
def InterfacesRemoved(self, object_path, interfaces):
1551
pass
1552
1553
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1554
out_signature="s",
1555
path_keyword='object_path',
1556
connection_keyword='connection')
1557
def Introspect(self, object_path, connection):
1558
"""Overloading of standard D-Bus method.
1559
1560
Override return argument name of GetManagedObjects to be
1561
"objpath_interfaces_and_properties"
1562
"""
1563
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1564
object_path,
1565
connection)
1566
try:
1567
document = xml.dom.minidom.parseString(xmlstring)
1568
1569
for if_tag in document.getElementsByTagName("interface"):
1570
# Fix argument name for the GetManagedObjects method
1571
if (if_tag.getAttribute("name")
1572
== dbus.OBJECT_MANAGER_IFACE):
1573
for cn in if_tag.getElementsByTagName("method"):
1574
if (cn.getAttribute("name")
1575
== "GetManagedObjects"):
1576
for arg in cn.getElementsByTagName("arg"):
1577
if (arg.getAttribute("direction")
1578
== "out"):
1579
arg.setAttribute(
1580
"name",
1581
"objpath_interfaces"
1582
"_and_properties")
1583
xmlstring = document.toxml("utf-8")
1584
document.unlink()
1585
except (AttributeError, xml.dom.DOMException,
1586
xml.parsers.expat.ExpatError) as error:
1587
logger.error("Failed to override Introspection method",
1588
exc_info=error)
1589
return xmlstring
1590
1591
1592
def datetime_to_dbus(dt, variant_level=0):
1593
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1594
if dt is None:
1595
return dbus.String("", variant_level=variant_level)
1596
return dbus.String(dt.isoformat(), variant_level=variant_level)
1597
1598
1599
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1600
"""A class decorator; applied to a subclass of
1601
dbus.service.Object, it will add alternate D-Bus attributes with
1602
interface names according to the "alt_interface_names" mapping.
1603
Usage:
1604
1605
@alternate_dbus_interfaces({"org.example.Interface":
1606
"net.example.AlternateInterface"})
1607
class SampleDBusObject(dbus.service.Object):
1608
@dbus.service.method("org.example.Interface")
1609
def SampleDBusMethod():
1610
pass
1611
1612
The above "SampleDBusMethod" on "SampleDBusObject" will be
1613
reachable via two interfaces: "org.example.Interface" and
1614
"net.example.AlternateInterface", the latter of which will have
1615
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1616
"true", unless "deprecate" is passed with a False value.
1617
1618
This works for methods and signals, and also for D-Bus properties
1619
(from DBusObjectWithProperties) and interfaces (from the
1620
dbus_interface_annotations decorator).
1621
"""
1622
1623
def wrapper(cls):
1624
for orig_interface_name, alt_interface_name in (
1625
alt_interface_names.items()):
1626
attr = {}
1627
interface_names = set()
1628
# Go though all attributes of the class
1629
for attrname, attribute in inspect.getmembers(cls):
1630
# Ignore non-D-Bus attributes, and D-Bus attributes
1631
# with the wrong interface name
1632
if (not hasattr(attribute, "_dbus_interface")
1633
or not attribute._dbus_interface.startswith(
1634
orig_interface_name)):
1635
continue
1636
# Create an alternate D-Bus interface name based on
1637
# the current name
1638
alt_interface = attribute._dbus_interface.replace(
1639
orig_interface_name, alt_interface_name)
1640
interface_names.add(alt_interface)
1641
# Is this a D-Bus signal?
1642
if getattr(attribute, "_dbus_is_signal", False):
1643
# Extract the original non-method undecorated
1644
# function by black magic
1645
if sys.version_info.major == 2:
1646
nonmethod_func = (dict(
1647
zip(attribute.func_code.co_freevars,
1648
attribute.__closure__))
1649
["func"].cell_contents)
1650
else:
1651
nonmethod_func = (dict(
1652
zip(attribute.__code__.co_freevars,
1653
attribute.__closure__))
1654
["func"].cell_contents)
1655
# Create a new, but exactly alike, function
1656
# object, and decorate it to be a new D-Bus signal
1657
# with the alternate D-Bus interface name
1658
new_function = copy_function(nonmethod_func)
1659
new_function = (dbus.service.signal(
1660
alt_interface,
1661
attribute._dbus_signature)(new_function))
1662
# Copy annotations, if any
1663
try:
1664
new_function._dbus_annotations = dict(
1665
attribute._dbus_annotations)
1666
except AttributeError:
1667
pass
1668
1669
# Define a creator of a function to call both the
1670
# original and alternate functions, so both the
1671
# original and alternate signals gets sent when
1672
# the function is called
1673
def fixscope(func1, func2):
1674
"""This function is a scope container to pass
1675
func1 and func2 to the "call_both" function
1676
outside of its arguments"""
1677
1678
@functools.wraps(func2)
1679
def call_both(*args, **kwargs):
1680
"""This function will emit two D-Bus
1681
signals by calling func1 and func2"""
1682
func1(*args, **kwargs)
1683
func2(*args, **kwargs)
1684
# Make wrapper function look like a D-Bus
1685
# signal
1686
for name, attr in inspect.getmembers(func2):
1687
if name.startswith("_dbus_"):
1688
setattr(call_both, name, attr)
1689
1690
return call_both
1691
# Create the "call_both" function and add it to
1692
# the class
1693
attr[attrname] = fixscope(attribute, new_function)
1694
# Is this a D-Bus method?
1695
elif getattr(attribute, "_dbus_is_method", False):
1696
# Create a new, but exactly alike, function
1697
# object. Decorate it to be a new D-Bus method
1698
# with the alternate D-Bus interface name. Add it
1699
# to the class.
1700
attr[attrname] = (
1701
dbus.service.method(
1702
alt_interface,
1703
attribute._dbus_in_signature,
1704
attribute._dbus_out_signature)
1705
(copy_function(attribute)))
1706
# Copy annotations, if any
1707
try:
1708
attr[attrname]._dbus_annotations = dict(
1709
attribute._dbus_annotations)
1710
except AttributeError:
1711
pass
1712
# Is this a D-Bus property?
1713
elif getattr(attribute, "_dbus_is_property", False):
1714
# Create a new, but exactly alike, function
1715
# object, and decorate it to be a new D-Bus
1716
# property with the alternate D-Bus interface
1717
# name. Add it to the class.
1718
attr[attrname] = (dbus_service_property(
1719
alt_interface, attribute._dbus_signature,
1720
attribute._dbus_access,
1721
attribute._dbus_get_args_options
1722
["byte_arrays"])
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
1730
# Is this a D-Bus interface?
1731
elif getattr(attribute, "_dbus_is_interface", False):
1732
# Create a new, but exactly alike, function
1733
# object. Decorate it to be a new D-Bus interface
1734
# with the alternate D-Bus interface name. Add it
1735
# to the class.
1736
attr[attrname] = (
1737
dbus_interface_annotations(alt_interface)
1738
(copy_function(attribute)))
1739
if deprecate:
1740
# Deprecate all alternate interfaces
1741
iname = "_AlternateDBusNames_interface_annotation{}"
1742
for interface_name in interface_names:
1743
1744
@dbus_interface_annotations(interface_name)
1745
def func(self):
1746
return {"org.freedesktop.DBus.Deprecated":
1747
"true"}
1748
# Find an unused name
1749
for aname in (iname.format(i)
1750
for i in itertools.count()):
1751
if aname not in attr:
1752
attr[aname] = func
1753
break
1754
if interface_names:
1755
# Replace the class with a new subclass of it with
1756
# methods, signals, etc. as created above.
1757
if sys.version_info.major == 2:
1758
cls = type(b"{}Alternate".format(cls.__name__),
1759
(cls, ), attr)
1760
else:
1761
cls = type("{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
return cls
1764
1765
return wrapper
1766
1767
1768
@alternate_dbus_interfaces({"se.recompile.Mandos":
1769
"se.bsnet.fukt.Mandos"})
754
1770
class ClientDBus(Client, DBusObjectWithProperties):
755
1771
"""A Client class using D-Bus
756
1772
757
1773
Attributes:
758
1774
dbus_object_path: dbus.ObjectPath
759
1775
bus: dbus.SystemBus()
760
1776
"""
761
1777
762
1778
runtime_expansions = (Client.runtime_expansions
763
+ ("dbus_object_path",))
764
1779
+ ("dbus_object_path", ))
1780
1781
_interface = "se.recompile.Mandos.Client"
1782
765
1783
# dbus.service.Object doesn't use super(), so we can't either.
766
767
def __init__(self, bus = None, *args, **kwargs):
768
self._approvals_pending = 0
1784
1785
def __init__(self, bus=None, *args, **kwargs):
769
1786
self.bus = bus
770
1787
Client.__init__(self, *args, **kwargs)
771
1788
# Only now, when this client is initialized, can it show up on
772
1789
# the D-Bus
773
client_object_name = unicode(self.name).translate(
1790
client_object_name = str(self.name).translate(
774
1791
{ord("."): ord("_"),
775
1792
ord("-"): ord("_")})
776
self.dbus_object_path = (dbus.ObjectPath
777
("/clients/" + client_object_name))
1793
self.dbus_object_path = dbus.ObjectPath(
1794
"/clients/" + client_object_name)
778
1795
DBusObjectWithProperties.__init__(self, self.bus,
779
1796
self.dbus_object_path)
780
def _set_expires(self, value):
781
old_value = getattr(self, "_expires", None)
782
self._expires = value
783
if hasattr(self, "dbus_object_path") and old_value != value:
784
dbus_time = (self._datetime_to_dbus(self._expires,
785
variant_level=1))
786
self.PropertyChanged(dbus.String("Expires"),
787
dbus_time)
788
expires = property(lambda self: self._expires, _set_expires)
789
del _set_expires
790
791
def _get_approvals_pending(self):
792
return self._approvals_pending
793
def _set_approvals_pending(self, value):
794
old_value = self._approvals_pending
795
self._approvals_pending = value
796
bval = bool(value)
797
if (hasattr(self, "dbus_object_path")
798
and bval is not bool(old_value)):
799
dbus_bool = dbus.Boolean(bval, variant_level=1)
800
self.PropertyChanged(dbus.String("ApprovalPending"),
801
dbus_bool)
802
803
approvals_pending = property(_get_approvals_pending,
804
_set_approvals_pending)
805
del _get_approvals_pending, _set_approvals_pending
806
807
@staticmethod
808
def _datetime_to_dbus(dt, variant_level=0):
809
"""Convert a UTC datetime.datetime() to a D-Bus type."""
810
if dt is None:
811
return dbus.String("", variant_level = variant_level)
812
return dbus.String(dt.isoformat(),
813
variant_level=variant_level)
814
815
def enable(self):
816
oldstate = getattr(self, "enabled", False)
817
r = Client.enable(self)
818
if oldstate != self.enabled:
819
# Emit D-Bus signals
820
self.PropertyChanged(dbus.String("Enabled"),
821
dbus.Boolean(True, variant_level=1))
822
self.PropertyChanged(
823
dbus.String("LastEnabled"),
824
self._datetime_to_dbus(self.last_enabled,
825
variant_level=1))
826
return r
827
828
def disable(self, quiet = False):
829
oldstate = getattr(self, "enabled", False)
830
r = Client.disable(self, quiet=quiet)
831
if not quiet and oldstate != self.enabled:
832
# Emit D-Bus signal
833
self.PropertyChanged(dbus.String("Enabled"),
834
dbus.Boolean(False, variant_level=1))
835
return r
836
1797
1798
def notifychangeproperty(transform_func, dbus_name,
1799
type_func=lambda x: x,
1800
variant_level=1,
1801
invalidate_only=False,
1802
_interface=_interface):
1803
""" Modify a variable so that it's a property which announces
1804
its changes to DBus.
1805
1806
transform_fun: Function that takes a value and a variant_level
1807
and transforms it to a D-Bus type.
1808
dbus_name: D-Bus name of the variable
1809
type_func: Function that transform the value before sending it
1810
to the D-Bus. Default: no transform
1811
variant_level: D-Bus variant level. Default: 1
1812
"""
1813
attrname = "_{}".format(dbus_name)
1814
1815
def setter(self, value):
1816
if hasattr(self, "dbus_object_path"):
1817
if (not hasattr(self, attrname) or
1818
type_func(getattr(self, attrname, None))
1819
!= type_func(value)):
1820
if invalidate_only:
1821
self.PropertiesChanged(
1822
_interface, dbus.Dictionary(),
1823
dbus.Array((dbus_name, )))
1824
else:
1825
dbus_value = transform_func(
1826
type_func(value),
1827
variant_level=variant_level)
1828
self.PropertyChanged(dbus.String(dbus_name),
1829
dbus_value)
1830
self.PropertiesChanged(
1831
_interface,
1832
dbus.Dictionary({dbus.String(dbus_name):
1833
dbus_value}),
1834
dbus.Array())
1835
setattr(self, attrname, value)
1836
1837
return property(lambda self: getattr(self, attrname), setter)
1838
1839
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1840
approvals_pending = notifychangeproperty(dbus.Boolean,
1841
"ApprovalPending",
1842
type_func=bool)
1843
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1844
last_enabled = notifychangeproperty(datetime_to_dbus,
1845
"LastEnabled")
1846
checker = notifychangeproperty(
1847
dbus.Boolean, "CheckerRunning",
1848
type_func=lambda checker: checker is not None)
1849
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1850
"LastCheckedOK")
1851
last_checker_status = notifychangeproperty(dbus.Int16,
1852
"LastCheckerStatus")
1853
last_approval_request = notifychangeproperty(
1854
datetime_to_dbus, "LastApprovalRequest")
1855
approved_by_default = notifychangeproperty(dbus.Boolean,
1856
"ApprovedByDefault")
1857
approval_delay = notifychangeproperty(
1858
dbus.UInt64, "ApprovalDelay",
1859
type_func=lambda td: td.total_seconds() * 1000)
1860
approval_duration = notifychangeproperty(
1861
dbus.UInt64, "ApprovalDuration",
1862
type_func=lambda td: td.total_seconds() * 1000)
1863
host = notifychangeproperty(dbus.String, "Host")
1864
timeout = notifychangeproperty(
1865
dbus.UInt64, "Timeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
1867
extended_timeout = notifychangeproperty(
1868
dbus.UInt64, "ExtendedTimeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
1870
interval = notifychangeproperty(
1871
dbus.UInt64, "Interval",
1872
type_func=lambda td: td.total_seconds() * 1000)
1873
checker_command = notifychangeproperty(dbus.String, "Checker")
1874
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1875
invalidate_only=True)
1876
1877
del notifychangeproperty
1878
837
1879
def __del__(self, *args, **kwargs):
838
1880
try:
839
1881
self.remove_from_connection()
842
1884
if hasattr(DBusObjectWithProperties, "__del__"):
843
1885
DBusObjectWithProperties.__del__(self, *args, **kwargs)
844
1886
Client.__del__(self, *args, **kwargs)
845
846
def checker_callback(self, pid, condition, command,
847
*args, **kwargs):
848
self.checker_callback_tag = None
849
self.checker = None
850
# Emit D-Bus signal
851
self.PropertyChanged(dbus.String("CheckerRunning"),
852
dbus.Boolean(False, variant_level=1))
853
if os.WIFEXITED(condition):
854
exitstatus = os.WEXITSTATUS(condition)
1887
1888
def checker_callback(self, source, condition,
1889
connection, command, *args, **kwargs):
1890
ret = Client.checker_callback(self, source, condition,
1891
connection, command, *args,
1892
**kwargs)
1893
exitstatus = self.last_checker_status
1894
if exitstatus >= 0:
855
1895
# Emit D-Bus signal
856
1896
self.CheckerCompleted(dbus.Int16(exitstatus),
857
dbus.Int64(condition),
1897
# This is specific to GNU libC
1898
dbus.Int64(exitstatus << 8),
858
1899
dbus.String(command))
859
1900
else:
860
1901
# Emit D-Bus signal
861
1902
self.CheckerCompleted(dbus.Int16(-1),
862
dbus.Int64(condition),
1903
dbus.Int64(
1904
# This is specific to GNU libC
1905
(exitstatus << 8)
1906
| self.last_checker_signal),
863
1907
dbus.String(command))
864
865
return Client.checker_callback(self, pid, condition, command,
866
*args, **kwargs)
867
868
def checked_ok(self, *args, **kwargs):
869
Client.checked_ok(self, *args, **kwargs)
870
# Emit D-Bus signal
871
self.PropertyChanged(
872
dbus.String("LastCheckedOK"),
873
(self._datetime_to_dbus(self.last_checked_ok,
874
variant_level=1)))
875
876
def need_approval(self, *args, **kwargs):
877
r = Client.need_approval(self, *args, **kwargs)
878
# Emit D-Bus signal
879
self.PropertyChanged(
880
dbus.String("LastApprovalRequest"),
881
(self._datetime_to_dbus(self.last_approval_request,
882
variant_level=1)))
883
return r
884
1908
return ret
1909
885
1910
def start_checker(self, *args, **kwargs):
886
old_checker = self.checker
887
if self.checker is not None:
888
old_checker_pid = self.checker.pid
889
else:
890
old_checker_pid = None
1911
old_checker_pid = getattr(self.checker, "pid", None)
891
1912
r = Client.start_checker(self, *args, **kwargs)
892
1913
# Only if new checker process was started
893
1914
if (self.checker is not None
894
1915
and old_checker_pid != self.checker.pid):
895
1916
# Emit D-Bus signal
896
1917
self.CheckerStarted(self.current_checker_command)
897
self.PropertyChanged(
898
dbus.String("CheckerRunning"),
899
dbus.Boolean(True, variant_level=1))
900
return r
901
902
def stop_checker(self, *args, **kwargs):
903
old_checker = getattr(self, "checker", None)
904
r = Client.stop_checker(self, *args, **kwargs)
905
if (old_checker is not None
906
and getattr(self, "checker", None) is None):
907
self.PropertyChanged(dbus.String("CheckerRunning"),
908
dbus.Boolean(False, variant_level=1))
909
1918
return r
910
1919
911
1920
def _reset_approved(self):
912
self._approved = None
1921
self.approved = None
913
1922
return False
914
1923
915
1924
def approve(self, value=True):
1925
self.approved = value
1926
GLib.timeout_add(int(self.approval_duration.total_seconds()
1927
* 1000), self._reset_approved)
916
1928
self.send_changedstate()
917
self._approved = value
918
gobject.timeout_add(self._timedelta_to_milliseconds
919
(self.approval_duration),
920
self._reset_approved)
921
922
923
## D-Bus methods, signals & properties
924
_interface = "se.bsnet.fukt.Mandos.Client"
925
926
## Signals
927
1929
1930
# D-Bus methods, signals & properties
1931
1932
# Interfaces
1933
1934
# Signals
1935
928
1936
# CheckerCompleted - signal
929
1937
@dbus.service.signal(_interface, signature="nxs")
930
1938
def CheckerCompleted(self, exitcode, waitstatus, command):
931
1939
"D-Bus signal"
932
1940
pass
933
1941
934
1942
# CheckerStarted - signal
935
1943
@dbus.service.signal(_interface, signature="s")
936
1944
def CheckerStarted(self, command):
937
1945
"D-Bus signal"
938
1946
pass
939
1947
940
1948
# PropertyChanged - signal
1949
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
941
1950
@dbus.service.signal(_interface, signature="sv")
942
1951
def PropertyChanged(self, property, value):
943
1952
"D-Bus signal"
944
1953
pass
945
1954
946
1955
# GotSecret - signal
947
1956
@dbus.service.signal(_interface)
948
1957
def GotSecret(self):
951
1960
server to mandos-client
952
1961
"""
953
1962
pass
954
1963
955
1964
# Rejected - signal
956
1965
@dbus.service.signal(_interface, signature="s")
957
1966
def Rejected(self, reason):
958
1967
"D-Bus signal"
959
1968
pass
960
1969
961
1970
# NeedApproval - signal
962
1971
@dbus.service.signal(_interface, signature="tb")
963
1972
def NeedApproval(self, timeout, default):
964
1973
"D-Bus signal"
965
1974
return self.need_approval()
966
967
## Methods
968
1975
1976
# Methods
1977
969
1978
# Approve - method
970
1979
@dbus.service.method(_interface, in_signature="b")
971
1980
def Approve(self, value):
972
1981
self.approve(value)
973
1982
974
1983
# CheckedOK - method
975
1984
@dbus.service.method(_interface)
976
1985
def CheckedOK(self):
977
1986
self.checked_ok()
978
1987
979
1988
# Enable - method
1989
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
980
1990
@dbus.service.method(_interface)
981
1991
def Enable(self):
982
1992
"D-Bus method"
983
1993
self.enable()
984
1994
985
1995
# StartChecker - method
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
986
1997
@dbus.service.method(_interface)
987
1998
def StartChecker(self):
988
1999
"D-Bus method"
989
2000
self.start_checker()
990
2001
991
2002
# Disable - method
2003
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
992
2004
@dbus.service.method(_interface)
993
2005
def Disable(self):
994
2006
"D-Bus method"
995
2007
self.disable()
996
2008
997
2009
# StopChecker - method
2010
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
998
2011
@dbus.service.method(_interface)
999
2012
def StopChecker(self):
1000
2013
self.stop_checker()
1001
1002
## Properties
1003
2014
2015
# Properties
2016
1004
2017
# ApprovalPending - property
1005
2018
@dbus_service_property(_interface, signature="b", access="read")
1006
2019
def ApprovalPending_dbus_property(self):
1007
2020
return dbus.Boolean(bool(self.approvals_pending))
1008
2021
1009
2022
# ApprovedByDefault - property
1010
@dbus_service_property(_interface, signature="b",
2023
@dbus_service_property(_interface,
2024
signature="b",
1011
2025
access="readwrite")
1012
2026
def ApprovedByDefault_dbus_property(self, value=None):
1013
2027
if value is None: # get
1014
2028
return dbus.Boolean(self.approved_by_default)
1015
old_value = self.approved_by_default
1016
2029
self.approved_by_default = bool(value)
1017
# Emit D-Bus signal
1018
if old_value != self.approved_by_default:
1019
self.PropertyChanged(dbus.String("ApprovedByDefault"),
1020
dbus.Boolean(value, variant_level=1))
1021
2030
1022
2031
# ApprovalDelay - property
1023
@dbus_service_property(_interface, signature="t",
2032
@dbus_service_property(_interface,
2033
signature="t",
1024
2034
access="readwrite")
1025
2035
def ApprovalDelay_dbus_property(self, value=None):
1026
2036
if value is None: # get
1027
return dbus.UInt64(self.approval_delay_milliseconds())
1028
old_value = self.approval_delay
2037
return dbus.UInt64(self.approval_delay.total_seconds()
2038
* 1000)
1029
2039
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1030
# Emit D-Bus signal
1031
if old_value != self.approval_delay:
1032
self.PropertyChanged(dbus.String("ApprovalDelay"),
1033
dbus.UInt64(value, variant_level=1))
1034
2040
1035
2041
# ApprovalDuration - property
1036
@dbus_service_property(_interface, signature="t",
2042
@dbus_service_property(_interface,
2043
signature="t",
1037
2044
access="readwrite")
1038
2045
def ApprovalDuration_dbus_property(self, value=None):
1039
2046
if value is None: # get
1040
return dbus.UInt64(self._timedelta_to_milliseconds(
1041
self.approval_duration))
1042
old_value = self.approval_duration
2047
return dbus.UInt64(self.approval_duration.total_seconds()
2048
* 1000)
1043
2049
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1044
# Emit D-Bus signal
1045
if old_value != self.approval_duration:
1046
self.PropertyChanged(dbus.String("ApprovalDuration"),
1047
dbus.UInt64(value, variant_level=1))
1048
2050
1049
2051
# Name - property
2052
@dbus_annotations(
2053
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1050
2054
@dbus_service_property(_interface, signature="s", access="read")
1051
2055
def Name_dbus_property(self):
1052
2056
return dbus.String(self.name)
1053
2057
2058
# KeyID - property
2059
@dbus_annotations(
2060
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2061
@dbus_service_property(_interface, signature="s", access="read")
2062
def KeyID_dbus_property(self):
2063
return dbus.String(self.key_id)
2064
1054
2065
# Fingerprint - property
2066
@dbus_annotations(
2067
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1055
2068
@dbus_service_property(_interface, signature="s", access="read")
1056
2069
def Fingerprint_dbus_property(self):
1057
2070
return dbus.String(self.fingerprint)
1058
2071
1059
2072
# Host - property
1060
@dbus_service_property(_interface, signature="s",
2073
@dbus_service_property(_interface,
2074
signature="s",
1061
2075
access="readwrite")
1062
2076
def Host_dbus_property(self, value=None):
1063
2077
if value is None: # get
1064
2078
return dbus.String(self.host)
1065
old_value = self.host
1066
self.host = value
1067
# Emit D-Bus signal
1068
if old_value != self.host:
1069
self.PropertyChanged(dbus.String("Host"),
1070
dbus.String(value, variant_level=1))
1071
2079
self.host = str(value)
2080
1072
2081
# Created - property
2082
@dbus_annotations(
2083
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1073
2084
@dbus_service_property(_interface, signature="s", access="read")
1074
2085
def Created_dbus_property(self):
1075
return dbus.String(self._datetime_to_dbus(self.created))
1076
2086
return datetime_to_dbus(self.created)
2087
1077
2088
# LastEnabled - property
1078
2089
@dbus_service_property(_interface, signature="s", access="read")
1079
2090
def LastEnabled_dbus_property(self):
1080
return self._datetime_to_dbus(self.last_enabled)
1081
2091
return datetime_to_dbus(self.last_enabled)
2092
1082
2093
# Enabled - property
1083
@dbus_service_property(_interface, signature="b",
2094
@dbus_service_property(_interface,
2095
signature="b",
1084
2096
access="readwrite")
1085
2097
def Enabled_dbus_property(self, value=None):
1086
2098
if value is None: # get
1089
2101
self.enable()
1090
2102
else:
1091
2103
self.disable()
1092
2104
1093
2105
# LastCheckedOK - property
1094
@dbus_service_property(_interface, signature="s",
2106
@dbus_service_property(_interface,
2107
signature="s",
1095
2108
access="readwrite")
1096
2109
def LastCheckedOK_dbus_property(self, value=None):
1097
2110
if value is not None:
1098
2111
self.checked_ok()
1099
2112
return
1100
return self._datetime_to_dbus(self.last_checked_ok)
1101
2113
return datetime_to_dbus(self.last_checked_ok)
2114
2115
# LastCheckerStatus - property
2116
@dbus_service_property(_interface, signature="n", access="read")
2117
def LastCheckerStatus_dbus_property(self):
2118
return dbus.Int16(self.last_checker_status)
2119
1102
2120
# Expires - property
1103
2121
@dbus_service_property(_interface, signature="s", access="read")
1104
2122
def Expires_dbus_property(self):
1105
return self._datetime_to_dbus(self.expires)
1106
2123
return datetime_to_dbus(self.expires)
2124
1107
2125
# LastApprovalRequest - property
1108
2126
@dbus_service_property(_interface, signature="s", access="read")
1109
2127
def LastApprovalRequest_dbus_property(self):
1110
return self._datetime_to_dbus(self.last_approval_request)
1111
2128
return datetime_to_dbus(self.last_approval_request)
2129
1112
2130
# Timeout - property
1113
@dbus_service_property(_interface, signature="t",
2131
@dbus_service_property(_interface,
2132
signature="t",
1114
2133
access="readwrite")
1115
2134
def Timeout_dbus_property(self, value=None):
1116
2135
if value is None: # get
1117
return dbus.UInt64(self.timeout_milliseconds())
1118
old_value = self.timeout
2136
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2137
old_timeout = self.timeout
1119
2138
self.timeout = datetime.timedelta(0, 0, 0, value)
1120
# Emit D-Bus signal
1121
if old_value != self.timeout:
1122
self.PropertyChanged(dbus.String("Timeout"),
1123
dbus.UInt64(value, variant_level=1))
1124
if getattr(self, "disable_initiator_tag", None) is None:
1125
return
1126
# Reschedule timeout
1127
gobject.source_remove(self.disable_initiator_tag)
1128
self.disable_initiator_tag = None
1129
self.expires = None
1130
time_to_die = (self.
1131
_timedelta_to_milliseconds((self
1132
.last_checked_ok
1133
+ self.timeout)
1134
- datetime.datetime
1135
.utcnow()))
1136
if time_to_die <= 0:
1137
# The timeout has passed
1138
self.disable()
1139
else:
1140
self.expires = (datetime.datetime.utcnow()
1141
+ datetime.timedelta(milliseconds = time_to_die))
1142
self.disable_initiator_tag = (gobject.timeout_add
1143
(time_to_die, self.disable))
2139
# Reschedule disabling
2140
if self.enabled:
2141
now = datetime.datetime.utcnow()
2142
self.expires += self.timeout - old_timeout
2143
if self.expires <= now:
2144
# The timeout has passed
2145
self.disable()
2146
else:
2147
if (getattr(self, "disable_initiator_tag", None)
2148
is None):
2149
return
2150
GLib.source_remove(self.disable_initiator_tag)
2151
self.disable_initiator_tag = GLib.timeout_add(
2152
int((self.expires - now).total_seconds() * 1000),
2153
self.disable)
1144
2154
1145
2155
# ExtendedTimeout - property
1146
@dbus_service_property(_interface, signature="t",
2156
@dbus_service_property(_interface,
2157
signature="t",
1147
2158
access="readwrite")
1148
2159
def ExtendedTimeout_dbus_property(self, value=None):
1149
2160
if value is None: # get
1150
return dbus.UInt64(self.extended_timeout_milliseconds())
1151
old_value = self.extended_timeout
2161
return dbus.UInt64(self.extended_timeout.total_seconds()
2162
* 1000)
1152
2163
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1153
# Emit D-Bus signal
1154
if old_value != self.extended_timeout:
1155
self.PropertyChanged(dbus.String("ExtendedTimeout"),
1156
dbus.UInt64(value, variant_level=1))
1157
2164
1158
2165
# Interval - property
1159
@dbus_service_property(_interface, signature="t",
2166
@dbus_service_property(_interface,
2167
signature="t",
1160
2168
access="readwrite")
1161
2169
def Interval_dbus_property(self, value=None):
1162
2170
if value is None: # get
1163
return dbus.UInt64(self.interval_milliseconds())
1164
old_value = self.interval
2171
return dbus.UInt64(self.interval.total_seconds() * 1000)
1165
2172
self.interval = datetime.timedelta(0, 0, 0, value)
1166
# Emit D-Bus signal
1167
if old_value != self.interval:
1168
self.PropertyChanged(dbus.String("Interval"),
1169
dbus.UInt64(value, variant_level=1))
1170
2173
if getattr(self, "checker_initiator_tag", None) is None:
1171
2174
return
1172
# Reschedule checker run
1173
gobject.source_remove(self.checker_initiator_tag)
1174
self.checker_initiator_tag = (gobject.timeout_add
1175
(value, self.start_checker))
1176
self.start_checker() # Start one now, too
2175
if self.enabled:
2176
# Reschedule checker run
2177
GLib.source_remove(self.checker_initiator_tag)
2178
self.checker_initiator_tag = GLib.timeout_add(
2179
value, self.start_checker)
2180
self.start_checker() # Start one now, too
1177
2181
1178
2182
# Checker - property
1179
@dbus_service_property(_interface, signature="s",
2183
@dbus_service_property(_interface,
2184
signature="s",
1180
2185
access="readwrite")
1181
2186
def Checker_dbus_property(self, value=None):
1182
2187
if value is None: # get
1183
2188
return dbus.String(self.checker_command)
1184
old_value = self.checker_command
1185
self.checker_command = value
1186
# Emit D-Bus signal
1187
if old_value != self.checker_command:
1188
self.PropertyChanged(dbus.String("Checker"),
1189
dbus.String(self.checker_command,
1190
variant_level=1))
1191
2189
self.checker_command = str(value)
2190
1192
2191
# CheckerRunning - property
1193
@dbus_service_property(_interface, signature="b",
2192
@dbus_service_property(_interface,
2193
signature="b",
1194
2194
access="readwrite")
1195
2195
def CheckerRunning_dbus_property(self, value=None):
1196
2196
if value is None: # get
1199
2199
self.start_checker()
1200
2200
else:
1201
2201
self.stop_checker()
1202
2202
1203
2203
# ObjectPath - property
2204
@dbus_annotations(
2205
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2206
"org.freedesktop.DBus.Deprecated": "true"})
1204
2207
@dbus_service_property(_interface, signature="o", access="read")
1205
2208
def ObjectPath_dbus_property(self):
1206
return self.dbus_object_path # is already a dbus.ObjectPath
1207
2209
return self.dbus_object_path # is already a dbus.ObjectPath
2210
1208
2211
# Secret = property
1209
@dbus_service_property(_interface, signature="ay",
1210
access="write", byte_arrays=True)
2212
@dbus_annotations(
2213
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2214
"invalidates"})
2215
@dbus_service_property(_interface,
2216
signature="ay",
2217
access="write",
2218
byte_arrays=True)
1211
2219
def Secret_dbus_property(self, value):
1212
self.secret = str(value)
1213
2220
self.secret = bytes(value)
2221
1214
2222
del _interface
1215
2223
1216
2224
1217
class ProxyClient(object):
1218
def __init__(self, child_pipe, fpr, address):
2225
class ProxyClient:
2226
def __init__(self, child_pipe, key_id, fpr, address):
1219
2227
self._pipe = child_pipe
1220
self._pipe.send(('init', fpr, address))
2228
self._pipe.send(('init', key_id, fpr, address))
1221
2229
if not self._pipe.recv():
1222
raise KeyError()
2230
raise KeyError(key_id or fpr)
1223
2231
1224
2232
def __getattribute__(self, name):
1225
if(name == '_pipe'):
2233
if name == '_pipe':
1226
2234
return super(ProxyClient, self).__getattribute__(name)
1227
2235
self._pipe.send(('getattr', name))
1228
2236
data = self._pipe.recv()
1229
2237
if data[0] == 'data':
1230
2238
return data[1]
1231
2239
if data[0] == 'function':
2240
1232
2241
def func(*args, **kwargs):
1233
2242
self._pipe.send(('funcall', name, args, kwargs))
1234
2243
return self._pipe.recv()[1]
2244
1235
2245
return func
1236
2246
1237
2247
def __setattr__(self, name, value):
1238
if(name == '_pipe'):
2248
if name == '_pipe':
1239
2249
return super(ProxyClient, self).__setattr__(name, value)
1240
2250
self._pipe.send(('setattr', name, value))
1241
2251
1242
2252
1243
2253
class ClientHandler(socketserver.BaseRequestHandler, object):
1244
2254
"""A class to handle client connections.
1245
2255
1246
2256
Instantiated once for each connection to handle it.
1247
2257
Note: This will run in its own forked process."""
1248
2258
1249
2259
def handle(self):
1250
2260
with contextlib.closing(self.server.child_pipe) as child_pipe:
1251
2261
logger.info("TCP connection from: %s",
1252
unicode(self.client_address))
2262
str(self.client_address))
1253
2263
logger.debug("Pipe FD: %d",
1254
2264
self.server.child_pipe.fileno())
1255
2265
1256
session = (gnutls.connection
1257
.ClientSession(self.request,
1258
gnutls.connection
1259
.X509Credentials()))
1260
1261
# Note: gnutls.connection.X509Credentials is really a
1262
# generic GnuTLS certificate credentials object so long as
1263
# no X.509 keys are added to it. Therefore, we can use it
1264
# here despite using OpenPGP certificates.
1265
1266
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1267
# "+AES-256-CBC", "+SHA1",
1268
# "+COMP-NULL", "+CTYPE-OPENPGP",
1269
# "+DHE-DSS"))
2266
session = gnutls.ClientSession(self.request)
2267
2268
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2269
# "+AES-256-CBC", "+SHA1",
2270
# "+COMP-NULL", "+CTYPE-OPENPGP",
2271
# "+DHE-DSS"))
1270
2272
# Use a fallback default, since this MUST be set.
1271
2273
priority = self.server.gnutls_priority
1272
2274
if priority is None:
1273
2275
priority = "NORMAL"
1274
(gnutls.library.functions
1275
.gnutls_priority_set_direct(session._c_object,
1276
priority, None))
2276
gnutls.priority_set_direct(session._c_object,
2277
priority.encode("utf-8"),
2278
None)
1277
2279
1278
2280
# Start communication using the Mandos protocol
1279
2281
# Get protocol number
1281
2283
logger.debug("Protocol version: %r", line)
1282
2284
try:
1283
2285
if int(line.strip().split()[0]) > 1:
1284
raise RuntimeError
2286
raise RuntimeError(line)
1285
2287
except (ValueError, IndexError, RuntimeError) as error:
1286
2288
logger.error("Unknown protocol version: %s", error)
1287
2289
return
1289
2291
# Start GnuTLS connection
1290
2292
try:
1291
2293
session.handshake()
1292
except gnutls.errors.GNUTLSError as error:
2294
except gnutls.Error as error:
1293
2295
logger.warning("Handshake failed: %s", error)
1294
2296
# Do not run session.bye() here: the session is not
1295
2297
# established. Just abandon the request.
1298
2300
1299
2301
approval_required = False
1300
2302
try:
1301
try:
1302
fpr = self.fingerprint(self.peer_certificate
1303
(session))
1304
except (TypeError,
1305
gnutls.errors.GNUTLSError) as error:
1306
logger.warning("Bad certificate: %s", error)
1307
return
1308
logger.debug("Fingerprint: %s", fpr)
1309
1310
try:
1311
client = ProxyClient(child_pipe, fpr,
2303
if gnutls.has_rawpk:
2304
fpr = b""
2305
try:
2306
key_id = self.key_id(
2307
self.peer_certificate(session))
2308
except (TypeError, gnutls.Error) as error:
2309
logger.warning("Bad certificate: %s", error)
2310
return
2311
logger.debug("Key ID: %s", key_id)
2312
2313
else:
2314
key_id = b""
2315
try:
2316
fpr = self.fingerprint(
2317
self.peer_certificate(session))
2318
except (TypeError, gnutls.Error) as error:
2319
logger.warning("Bad certificate: %s", error)
2320
return
2321
logger.debug("Fingerprint: %s", fpr)
2322
2323
try:
2324
client = ProxyClient(child_pipe, key_id, fpr,
1312
2325
self.client_address)
1313
2326
except KeyError:
1314
2327
return
1315
2328
1316
2329
if client.approval_delay:
1317
2330
delay = client.approval_delay
1318
2331
client.approvals_pending += 1
1319
2332
approval_required = True
1320
2333
1321
2334
while True:
1322
2335
if not client.enabled:
1323
2336
logger.info("Client %s is disabled",
1324
client.name)
2337
client.name)
1325
2338
if self.server.use_dbus:
1326
2339
# Emit D-Bus signal
1327
client.Rejected("Disabled")
2340
client.Rejected("Disabled")
1328
2341
return
1329
1330
if client._approved or not client.approval_delay:
1331
#We are approved or approval is disabled
2342
2343
if client.approved or not client.approval_delay:
2344
# We are approved or approval is disabled
1332
2345
break
1333
elif client._approved is None:
2346
elif client.approved is None:
1334
2347
logger.info("Client %s needs approval",
1335
2348
client.name)
1336
2349
if self.server.use_dbus:
1337
2350
# Emit D-Bus signal
1338
2351
client.NeedApproval(
1339
client.approval_delay_milliseconds(),
1340
client.approved_by_default)
2352
client.approval_delay.total_seconds()
2353
* 1000, client.approved_by_default)
1341
2354
else:
1342
2355
logger.warning("Client %s was not approved",
1343
2356
client.name)
1345
2358
# Emit D-Bus signal
1346
2359
client.Rejected("Denied")
1347
2360
return
1348
1349
#wait until timeout or approved
1350
#x = float(client._timedelta_to_milliseconds(delay))
2361
2362
# wait until timeout or approved
1351
2363
time = datetime.datetime.now()
1352
2364
client.changedstate.acquire()
1353
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
2365
client.changedstate.wait(delay.total_seconds())
1354
2366
client.changedstate.release()
1355
2367
time2 = datetime.datetime.now()
1356
2368
if (time2 - time) >= delay:
1366
2378
break
1367
2379
else:
1368
2380
delay -= time2 - time
1369
1370
sent_size = 0
1371
while sent_size < len(client.secret):
1372
try:
1373
sent = session.send(client.secret[sent_size:])
1374
except gnutls.errors.GNUTLSError as error:
1375
logger.warning("gnutls send failed")
1376
return
1377
logger.debug("Sent: %d, remaining: %d",
1378
sent, len(client.secret)
1379
- (sent_size + sent))
1380
sent_size += sent
2381
2382
try:
2383
session.send(client.secret)
2384
except gnutls.Error as error:
2385
logger.warning("gnutls send failed",
2386
exc_info=error)
2387
return
1381
2388
1382
2389
logger.info("Sending secret to %s", client.name)
1383
# bump the timeout as if seen
1384
client.checked_ok(client.extended_timeout)
2390
# bump the timeout using extended_timeout
2391
client.bump_timeout(client.extended_timeout)
1385
2392
if self.server.use_dbus:
1386
2393
# Emit D-Bus signal
1387
2394
client.GotSecret()
1388
2395
1389
2396
finally:
1390
2397
if approval_required:
1391
2398
client.approvals_pending -= 1
1392
2399
try:
1393
2400
session.bye()
1394
except gnutls.errors.GNUTLSError as error:
1395
logger.warning("GnuTLS bye failed")
1396
2401
except gnutls.Error as error:
2402
logger.warning("GnuTLS bye failed",
2403
exc_info=error)
2404
1397
2405
@staticmethod
1398
2406
def peer_certificate(session):
1399
"Return the peer's OpenPGP certificate as a bytestring"
1400
# If not an OpenPGP certificate...
1401
if (gnutls.library.functions
1402
.gnutls_certificate_type_get(session._c_object)
1403
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1404
# ...do the normal thing
1405
return session.peer_certificate
2407
"Return the peer's certificate as a bytestring"
2408
try:
2409
cert_type = gnutls.certificate_type_get2(session._c_object,
2410
gnutls.CTYPE_PEERS)
2411
except AttributeError:
2412
cert_type = gnutls.certificate_type_get(session._c_object)
2413
if gnutls.has_rawpk:
2414
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2415
else:
2416
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2417
# If not a valid certificate type...
2418
if cert_type not in valid_cert_types:
2419
logger.info("Cert type %r not in %r", cert_type,
2420
valid_cert_types)
2421
# ...return invalid data
2422
return b""
1406
2423
list_size = ctypes.c_uint(1)
1407
cert_list = (gnutls.library.functions
1408
.gnutls_certificate_get_peers
2424
cert_list = (gnutls.certificate_get_peers
1409
2425
(session._c_object, ctypes.byref(list_size)))
1410
2426
if not bool(cert_list) and list_size.value != 0:
1411
raise gnutls.errors.GNUTLSError("error getting peer"
1412
" certificate")
2427
raise gnutls.Error("error getting peer certificate")
1413
2428
if list_size.value == 0:
1414
2429
return None
1415
2430
cert = cert_list[0]
1416
2431
return ctypes.string_at(cert.data, cert.size)
1417
2432
2433
@staticmethod
2434
def key_id(certificate):
2435
"Convert a certificate bytestring to a hexdigit key ID"
2436
# New GnuTLS "datum" with the public key
2437
datum = gnutls.datum_t(
2438
ctypes.cast(ctypes.c_char_p(certificate),
2439
ctypes.POINTER(ctypes.c_ubyte)),
2440
ctypes.c_uint(len(certificate)))
2441
# XXX all these need to be created in the gnutls "module"
2442
# New empty GnuTLS certificate
2443
pubkey = gnutls.pubkey_t()
2444
gnutls.pubkey_init(ctypes.byref(pubkey))
2445
# Import the raw public key into the certificate
2446
gnutls.pubkey_import(pubkey,
2447
ctypes.byref(datum),
2448
gnutls.X509_FMT_DER)
2449
# New buffer for the key ID
2450
buf = ctypes.create_string_buffer(32)
2451
buf_len = ctypes.c_size_t(len(buf))
2452
# Get the key ID from the raw public key into the buffer
2453
gnutls.pubkey_get_key_id(pubkey,
2454
gnutls.KEYID_USE_SHA256,
2455
ctypes.cast(ctypes.byref(buf),
2456
ctypes.POINTER(ctypes.c_ubyte)),
2457
ctypes.byref(buf_len))
2458
# Deinit the certificate
2459
gnutls.pubkey_deinit(pubkey)
2460
2461
# Convert the buffer to a Python bytestring
2462
key_id = ctypes.string_at(buf, buf_len.value)
2463
# Convert the bytestring to hexadecimal notation
2464
hex_key_id = binascii.hexlify(key_id).upper()
2465
return hex_key_id
2466
1418
2467
@staticmethod
1419
2468
def fingerprint(openpgp):
1420
2469
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1421
2470
# New GnuTLS "datum" with the OpenPGP public key
1422
datum = (gnutls.library.types
1423
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1424
ctypes.POINTER
1425
(ctypes.c_ubyte)),
1426
ctypes.c_uint(len(openpgp))))
2471
datum = gnutls.datum_t(
2472
ctypes.cast(ctypes.c_char_p(openpgp),
2473
ctypes.POINTER(ctypes.c_ubyte)),
2474
ctypes.c_uint(len(openpgp)))
1427
2475
# New empty GnuTLS certificate
1428
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1429
(gnutls.library.functions
1430
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2476
crt = gnutls.openpgp_crt_t()
2477
gnutls.openpgp_crt_init(ctypes.byref(crt))
1431
2478
# Import the OpenPGP public key into the certificate
1432
(gnutls.library.functions
1433
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1434
gnutls.library.constants
1435
.GNUTLS_OPENPGP_FMT_RAW))
2479
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2480
gnutls.OPENPGP_FMT_RAW)
1436
2481
# Verify the self signature in the key
1437
2482
crtverify = ctypes.c_uint()
1438
(gnutls.library.functions
1439
.gnutls_openpgp_crt_verify_self(crt, 0,
1440
ctypes.byref(crtverify)))
2483
gnutls.openpgp_crt_verify_self(crt, 0,
2484
ctypes.byref(crtverify))
1441
2485
if crtverify.value != 0:
1442
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1443
raise (gnutls.errors.CertificateSecurityError
1444
("Verify failed"))
2486
gnutls.openpgp_crt_deinit(crt)
2487
raise gnutls.CertificateSecurityError(code
2488
=crtverify.value)
1445
2489
# New buffer for the fingerprint
1446
2490
buf = ctypes.create_string_buffer(20)
1447
2491
buf_len = ctypes.c_size_t()
1448
2492
# Get the fingerprint from the certificate into the buffer
1449
(gnutls.library.functions
1450
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1451
ctypes.byref(buf_len)))
2493
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2494
ctypes.byref(buf_len))
1452
2495
# Deinit the certificate
1453
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2496
gnutls.openpgp_crt_deinit(crt)
1454
2497
# Convert the buffer to a Python bytestring
1455
2498
fpr = ctypes.string_at(buf, buf_len.value)
1456
2499
# Convert the bytestring to hexadecimal notation
1457
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2500
hex_fpr = binascii.hexlify(fpr).upper()
1458
2501
return hex_fpr
1459
2502
1460
2503
1461
class MultiprocessingMixIn(object):
2504
class MultiprocessingMixIn:
1462
2505
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2506
1463
2507
def sub_process_main(self, request, address):
1464
2508
try:
1465
2509
self.finish_request(request, address)
1466
except:
2510
except Exception:
1467
2511
self.handle_error(request, address)
1468
2512
self.close_request(request)
1469
2513
1470
2514
def process_request(self, request, address):
1471
2515
"""Start a new process to process the request."""
1472
multiprocessing.Process(target = self.sub_process_main,
1473
args = (request, address)).start()
1474
1475
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
2518
proc.start()
2519
return proc
2520
2521
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1476
2523
""" adds a pipe to the MixIn """
2524
1477
2525
def process_request(self, request, client_address):
1478
2526
"""Overrides and wraps the original process_request().
1479
2527
1480
2528
This function creates a new pipe in self.pipe
1481
2529
"""
1482
2530
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1483
2531
1484
super(MultiprocessingMixInWithPipe,
1485
self).process_request(request, client_address)
2532
proc = MultiprocessingMixIn.process_request(self, request,
2533
client_address)
1486
2534
self.child_pipe.close()
1487
self.add_pipe(parent_pipe)
2535
self.add_pipe(parent_pipe, proc)
1488
2536
1489
def add_pipe(self, parent_pipe):
2537
def add_pipe(self, parent_pipe, proc):
1490
2538
"""Dummy function; override as necessary"""
1491
raise NotImplementedError
2539
raise NotImplementedError()
2540
1492
2541
1493
2542
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1494
socketserver.TCPServer, object):
2543
socketserver.TCPServer):
1495
2544
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1496
2545
1497
2546
Attributes:
1498
2547
enabled: Boolean; whether this server is activated yet
1499
2548
interface: None or a network interface name (string)
1500
2549
use_ipv6: Boolean; to use IPv6 or not
1501
2550
"""
2551
1502
2552
def __init__(self, server_address, RequestHandlerClass,
1503
interface=None, use_ipv6=True):
2553
interface=None,
2554
use_ipv6=True,
2555
socketfd=None):
2556
"""If socketfd is set, use that file descriptor instead of
2557
creating a new one with socket.socket().
2558
"""
1504
2559
self.interface = interface
1505
2560
if use_ipv6:
1506
2561
self.address_family = socket.AF_INET6
2562
if socketfd is not None:
2563
# Save the file descriptor
2564
self.socketfd = socketfd
2565
# Save the original socket.socket() function
2566
self.socket_socket = socket.socket
2567
2568
# To implement --socket, we monkey patch socket.socket.
2569
#
2570
# (When socketserver.TCPServer is a new-style class, we
2571
# could make self.socket into a property instead of monkey
2572
# patching socket.socket.)
2573
#
2574
# Create a one-time-only replacement for socket.socket()
2575
@functools.wraps(socket.socket)
2576
def socket_wrapper(*args, **kwargs):
2577
# Restore original function so subsequent calls are
2578
# not affected.
2579
socket.socket = self.socket_socket
2580
del self.socket_socket
2581
# This time only, return a new socket object from the
2582
# saved file descriptor.
2583
return socket.fromfd(self.socketfd, *args, **kwargs)
2584
# Replace socket.socket() function with wrapper
2585
socket.socket = socket_wrapper
2586
# The socketserver.TCPServer.__init__ will call
2587
# socket.socket(), which might be our replacement,
2588
# socket_wrapper(), if socketfd was set.
1507
2589
socketserver.TCPServer.__init__(self, server_address,
1508
2590
RequestHandlerClass)
2591
1509
2592
def server_bind(self):
1510
2593
"""This overrides the normal server_bind() function
1511
2594
to bind to an interface if one was specified, and also NOT to
1512
2595
bind to an address or port if they were not specified."""
2596
global SO_BINDTODEVICE
1513
2597
if self.interface is not None:
1514
2598
if SO_BINDTODEVICE is None:
1515
logger.error("SO_BINDTODEVICE does not exist;"
1516
" cannot bind to interface %s",
1517
self.interface)
1518
else:
1519
try:
1520
self.socket.setsockopt(socket.SOL_SOCKET,
1521
SO_BINDTODEVICE,
1522
str(self.interface
1523
+ '\0'))
1524
except socket.error as error:
1525
if error[0] == errno.EPERM:
1526
logger.error("No permission to"
1527
" bind to interface %s",
1528
self.interface)
1529
elif error[0] == errno.ENOPROTOOPT:
1530
logger.error("SO_BINDTODEVICE not available;"
1531
" cannot bind to interface %s",
1532
self.interface)
1533
else:
1534
raise
2599
# Fall back to a hard-coded value which seems to be
2600
# common enough.
2601
logger.warning("SO_BINDTODEVICE not found, trying 25")
2602
SO_BINDTODEVICE = 25
2603
try:
2604
self.socket.setsockopt(
2605
socket.SOL_SOCKET, SO_BINDTODEVICE,
2606
(self.interface + "\0").encode("utf-8"))
2607
except socket.error as error:
2608
if error.errno == errno.EPERM:
2609
logger.error("No permission to bind to"
2610
" interface %s", self.interface)
2611
elif error.errno == errno.ENOPROTOOPT:
2612
logger.error("SO_BINDTODEVICE not available;"
2613
" cannot bind to interface %s",
2614
self.interface)
2615
elif error.errno == errno.ENODEV:
2616
logger.error("Interface %s does not exist,"
2617
" cannot bind", self.interface)
2618
else:
2619
raise
1535
2620
# Only bind(2) the socket if we really need to.
1536
2621
if self.server_address[0] or self.server_address[1]:
2622
if self.server_address[1]:
2623
self.allow_reuse_address = True
1537
2624
if not self.server_address[0]:
1538
2625
if self.address_family == socket.AF_INET6:
1539
any_address = "::" # in6addr_any
2626
any_address = "::" # in6addr_any
1540
2627
else:
1541
any_address = socket.INADDR_ANY
2628
any_address = "0.0.0.0" # INADDR_ANY
1542
2629
self.server_address = (any_address,
1543
2630
self.server_address[1])
1544
2631
elif not self.server_address[1]:
1545
self.server_address = (self.server_address[0],
1546
0)
2632
self.server_address = (self.server_address[0], 0)
1547
2633
# if self.interface:
1548
2634
# self.server_address = (self.server_address[0],
1549
2635
# 0, # port
1555
2641
1556
2642
class MandosServer(IPv6_TCPServer):
1557
2643
"""Mandos server.
1558
2644
1559
2645
Attributes:
1560
2646
clients: set of Client objects
1561
2647
gnutls_priority GnuTLS priority string
1562
2648
use_dbus: Boolean; to emit D-Bus signals or not
1563
1564
Assumes a gobject.MainLoop event loop.
2649
2650
Assumes a GLib.MainLoop event loop.
1565
2651
"""
2652
1566
2653
def __init__(self, server_address, RequestHandlerClass,
1567
interface=None, use_ipv6=True, clients=None,
1568
gnutls_priority=None, use_dbus=True):
2654
interface=None,
2655
use_ipv6=True,
2656
clients=None,
2657
gnutls_priority=None,
2658
use_dbus=True,
2659
socketfd=None):
1569
2660
self.enabled = False
1570
2661
self.clients = clients
1571
2662
if self.clients is None:
1572
self.clients = set()
2663
self.clients = {}
1573
2664
self.use_dbus = use_dbus
1574
2665
self.gnutls_priority = gnutls_priority
1575
2666
IPv6_TCPServer.__init__(self, server_address,
1576
2667
RequestHandlerClass,
1577
interface = interface,
1578
use_ipv6 = use_ipv6)
2668
interface=interface,
2669
use_ipv6=use_ipv6,
2670
socketfd=socketfd)
2671
1579
2672
def server_activate(self):
1580
2673
if self.enabled:
1581
2674
return socketserver.TCPServer.server_activate(self)
2675
1582
2676
def enable(self):
1583
2677
self.enabled = True
1584
def add_pipe(self, parent_pipe):
2678
2679
def add_pipe(self, parent_pipe, proc):
1585
2680
# Call "handle_ipc" for both data and EOF events
1586
gobject.io_add_watch(parent_pipe.fileno(),
1587
gobject.IO_IN | gobject.IO_HUP,
1588
functools.partial(self.handle_ipc,
1589
parent_pipe = parent_pipe))
1590
1591
def handle_ipc(self, source, condition, parent_pipe=None,
2681
GLib.io_add_watch(
2682
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2683
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2684
functools.partial(self.handle_ipc,
2685
parent_pipe=parent_pipe,
2686
proc=proc))
2687
2688
def handle_ipc(self, source, condition,
2689
parent_pipe=None,
2690
proc=None,
1592
2691
client_object=None):
1593
condition_names = {
1594
gobject.IO_IN: "IN", # There is data to read.
1595
gobject.IO_OUT: "OUT", # Data can be written (without
1596
# blocking).
1597
gobject.IO_PRI: "PRI", # There is urgent data to read.
1598
gobject.IO_ERR: "ERR", # Error condition.
1599
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1600
# broken, usually for pipes and
1601
# sockets).
1602
}
1603
conditions_string = ' | '.join(name
1604
for cond, name in
1605
condition_names.iteritems()
1606
if cond & condition)
1607
# error or the other end of multiprocessing.Pipe has closed
1608
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2692
# error, or the other end of multiprocessing.Pipe has closed
2693
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2694
# Wait for other process to exit
2695
proc.join()
1609
2696
return False
1610
2697
1611
2698
# Read a request from the child
1612
2699
request = parent_pipe.recv()
1613
2700
command = request[0]
1614
2701
1615
2702
if command == 'init':
1616
fpr = request[1]
1617
address = request[2]
1618
1619
for c in self.clients:
1620
if c.fingerprint == fpr:
2703
key_id = request[1].decode("ascii")
2704
fpr = request[2].decode("ascii")
2705
address = request[3]
2706
2707
for c in self.clients.values():
2708
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2709
continue
2710
if key_id and c.key_id == key_id:
2711
client = c
2712
break
2713
if fpr and c.fingerprint == fpr:
1621
2714
client = c
1622
2715
break
1623
2716
else:
1624
logger.info("Client not found for fingerprint: %s, ad"
1625
"dress: %s", fpr, address)
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
1626
2719
if self.use_dbus:
1627
2720
# Emit D-Bus signal
1628
mandos_dbus_service.ClientNotFound(fpr, address[0])
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
2722
address[0])
1629
2723
parent_pipe.send(False)
1630
2724
return False
1631
1632
gobject.io_add_watch(parent_pipe.fileno(),
1633
gobject.IO_IN | gobject.IO_HUP,
1634
functools.partial(self.handle_ipc,
1635
parent_pipe = parent_pipe,
1636
client_object = client))
2725
2726
GLib.io_add_watch(
2727
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2728
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2729
functools.partial(self.handle_ipc,
2730
parent_pipe=parent_pipe,
2731
proc=proc,
2732
client_object=client))
1637
2733
parent_pipe.send(True)
1638
# remove the old hook in favor of the new above hook on same fileno
2734
# remove the old hook in favor of the new above hook on
2735
# same fileno
1639
2736
return False
1640
2737
if command == 'funcall':
1641
2738
funcname = request[1]
1642
2739
args = request[2]
1643
2740
kwargs = request[3]
1644
1645
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2741
2742
parent_pipe.send(('data', getattr(client_object,
2743
funcname)(*args,
2744
**kwargs)))
1646
2745
1647
2746
if command == 'getattr':
1648
2747
attrname = request[1]
1649
if callable(client_object.__getattribute__(attrname)):
1650
parent_pipe.send(('function',))
2748
if isinstance(client_object.__getattribute__(attrname),
2749
collections.Callable):
2750
parent_pipe.send(('function', ))
1651
2751
else:
1652
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1653
2752
parent_pipe.send((
2753
'data', client_object.__getattribute__(attrname)))
2754
1654
2755
if command == 'setattr':
1655
2756
attrname = request[1]
1656
2757
value = request[2]
1659
2760
return True
1660
2761
1661
2762
2763
def rfc3339_duration_to_delta(duration):
2764
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2765
2766
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2767
True
2768
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2771
True
2772
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2773
True
2774
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2775
True
2776
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2777
True
2778
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2779
True
2780
"""
2781
2782
# Parsing an RFC 3339 duration with regular expressions is not
2783
# possible - there would have to be multiple places for the same
2784
# values, like seconds. The current code, while more esoteric, is
2785
# cleaner without depending on a parsing library. If Python had a
2786
# built-in library for parsing we would use it, but we'd like to
2787
# avoid excessive use of external libraries.
2788
2789
# New type for defining tokens, syntax, and semantics all-in-one
2790
Token = collections.namedtuple("Token", (
2791
"regexp", # To match token; if "value" is not None, must have
2792
# a "group" containing digits
2793
"value", # datetime.timedelta or None
2794
"followers")) # Tokens valid after this token
2795
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2796
# the "duration" ABNF definition in RFC 3339, Appendix A.
2797
token_end = Token(re.compile(r"$"), None, frozenset())
2798
token_second = Token(re.compile(r"(\d+)S"),
2799
datetime.timedelta(seconds=1),
2800
frozenset((token_end, )))
2801
token_minute = Token(re.compile(r"(\d+)M"),
2802
datetime.timedelta(minutes=1),
2803
frozenset((token_second, token_end)))
2804
token_hour = Token(re.compile(r"(\d+)H"),
2805
datetime.timedelta(hours=1),
2806
frozenset((token_minute, token_end)))
2807
token_time = Token(re.compile(r"T"),
2808
None,
2809
frozenset((token_hour, token_minute,
2810
token_second)))
2811
token_day = Token(re.compile(r"(\d+)D"),
2812
datetime.timedelta(days=1),
2813
frozenset((token_time, token_end)))
2814
token_month = Token(re.compile(r"(\d+)M"),
2815
datetime.timedelta(weeks=4),
2816
frozenset((token_day, token_end)))
2817
token_year = Token(re.compile(r"(\d+)Y"),
2818
datetime.timedelta(weeks=52),
2819
frozenset((token_month, token_end)))
2820
token_week = Token(re.compile(r"(\d+)W"),
2821
datetime.timedelta(weeks=1),
2822
frozenset((token_end, )))
2823
token_duration = Token(re.compile(r"P"), None,
2824
frozenset((token_year, token_month,
2825
token_day, token_time,
2826
token_week)))
2827
# Define starting values:
2828
# Value so far
2829
value = datetime.timedelta()
2830
found_token = None
2831
# Following valid tokens
2832
followers = frozenset((token_duration, ))
2833
# String left to parse
2834
s = duration
2835
# Loop until end token is found
2836
while found_token is not token_end:
2837
# Search for any currently valid tokens
2838
for token in followers:
2839
match = token.regexp.match(s)
2840
if match is not None:
2841
# Token found
2842
if token.value is not None:
2843
# Value found, parse digits
2844
factor = int(match.group(1), 10)
2845
# Add to value so far
2846
value += factor * token.value
2847
# Strip token from string
2848
s = token.regexp.sub("", s, 1)
2849
# Go to found token
2850
found_token = token
2851
# Set valid next tokens
2852
followers = found_token.followers
2853
break
2854
else:
2855
# No currently valid tokens were found
2856
raise ValueError("Invalid RFC 3339 duration: {!r}"
2857
.format(duration))
2858
# End token found
2859
return value
2860
2861
1662
2862
def string_to_delta(interval):
1663
2863
"""Parse a string and return a datetime.timedelta
1664
1665
>>> string_to_delta('7d')
1666
datetime.timedelta(7)
1667
>>> string_to_delta('60s')
1668
datetime.timedelta(0, 60)
1669
>>> string_to_delta('60m')
1670
datetime.timedelta(0, 3600)
1671
>>> string_to_delta('24h')
1672
datetime.timedelta(1)
1673
>>> string_to_delta('1w')
1674
datetime.timedelta(7)
1675
>>> string_to_delta('5m 30s')
1676
datetime.timedelta(0, 330)
2864
2865
>>> string_to_delta('7d') == datetime.timedelta(7)
2866
True
2867
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2868
True
2869
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2870
True
2871
>>> string_to_delta('24h') == datetime.timedelta(1)
2872
True
2873
>>> string_to_delta('1w') == datetime.timedelta(7)
2874
True
2875
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2876
True
1677
2877
"""
2878
2879
try:
2880
return rfc3339_duration_to_delta(interval)
2881
except ValueError:
2882
pass
2883
1678
2884
timevalue = datetime.timedelta(0)
1679
2885
for s in interval.split():
1680
2886
try:
1681
suffix = unicode(s[-1])
2887
suffix = s[-1]
1682
2888
value = int(s[:-1])
1683
2889
if suffix == "d":
1684
2890
delta = datetime.timedelta(value)
1691
2897
elif suffix == "w":
1692
2898
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1693
2899
else:
1694
raise ValueError("Unknown suffix %r" % suffix)
1695
except (ValueError, IndexError) as e:
2900
raise ValueError("Unknown suffix {!r}".format(suffix))
2901
except IndexError as e:
1696
2902
raise ValueError(*(e.args))
1697
2903
timevalue += delta
1698
2904
return timevalue
1699
2905
1700
2906
1701
def if_nametoindex(interface):
1702
"""Call the C function if_nametoindex(), or equivalent
1703
1704
Note: This function cannot accept a unicode string."""
1705
global if_nametoindex
1706
try:
1707
if_nametoindex = (ctypes.cdll.LoadLibrary
1708
(ctypes.util.find_library("c"))
1709
.if_nametoindex)
1710
except (OSError, AttributeError):
1711
logger.warning("Doing if_nametoindex the hard way")
1712
def if_nametoindex(interface):
1713
"Get an interface index the hard way, i.e. using fcntl()"
1714
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1715
with contextlib.closing(socket.socket()) as s:
1716
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1717
struct.pack(str("16s16x"),
1718
interface))
1719
interface_index = struct.unpack(str("I"),
1720
ifreq[16:20])[0]
1721
return interface_index
1722
return if_nametoindex(interface)
1723
1724
1725
def daemon(nochdir = False, noclose = False):
2907
def daemon(nochdir=False, noclose=False):
1726
2908
"""See daemon(3). Standard BSD Unix function.
1727
2909
1728
2910
This should really exist as os.daemon, but it doesn't (yet)."""
1729
2911
if os.fork():
1730
2912
sys.exit()
1735
2917
sys.exit()
1736
2918
if not noclose:
1737
2919
# Close all standard open file descriptors
1738
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2920
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1739
2921
if not stat.S_ISCHR(os.fstat(null).st_mode):
1740
2922
raise OSError(errno.ENODEV,
1741
"%s not a character device"
1742
% os.path.devnull)
2923
"{} not a character device"
2924
.format(os.devnull))
1743
2925
os.dup2(null, sys.stdin.fileno())
1744
2926
os.dup2(null, sys.stdout.fileno())
1745
2927
os.dup2(null, sys.stderr.fileno())
1748
2930
1749
2931
1750
2932
def main():
1751
2933
1752
2934
##################################################################
1753
2935
# Parsing of options, both command line and config file
1754
2936
1755
2937
parser = argparse.ArgumentParser()
1756
2938
parser.add_argument("-v", "--version", action="version",
1757
version = "%%(prog)s %s" % version,
2939
version="%(prog)s {}".format(version),
1758
2940
help="show version number and exit")
1759
2941
parser.add_argument("-i", "--interface", metavar="IF",
1760
2942
help="Bind to interface IF")
1766
2948
help="Run self-test")
1767
2949
parser.add_argument("--debug", action="store_true",
1768
2950
help="Debug mode; run in foreground and log"
1769
" to terminal")
2951
" to terminal", default=None)
1770
2952
parser.add_argument("--debuglevel", metavar="LEVEL",
1771
2953
help="Debug level for stdout output")
1772
2954
parser.add_argument("--priority", help="GnuTLS"
1779
2961
" files")
1780
2962
parser.add_argument("--no-dbus", action="store_false",
1781
2963
dest="use_dbus", help="Do not provide D-Bus"
1782
" system bus interface")
2964
" system bus interface", default=None)
1783
2965
parser.add_argument("--no-ipv6", action="store_false",
1784
dest="use_ipv6", help="Do not use IPv6")
2966
dest="use_ipv6", help="Do not use IPv6",
2967
default=None)
2968
parser.add_argument("--no-restore", action="store_false",
2969
dest="restore", help="Do not restore stored"
2970
" state", default=None)
2971
parser.add_argument("--socket", type=int,
2972
help="Specify a file descriptor to a network"
2973
" socket to use instead of creating one")
2974
parser.add_argument("--statedir", metavar="DIR",
2975
help="Directory to save/restore state in")
2976
parser.add_argument("--foreground", action="store_true",
2977
help="Run in foreground", default=None)
2978
parser.add_argument("--no-zeroconf", action="store_false",
2979
dest="zeroconf", help="Do not use Zeroconf",
2980
default=None)
2981
1785
2982
options = parser.parse_args()
1786
1787
if options.check:
1788
import doctest
1789
doctest.testmod()
1790
sys.exit()
1791
2983
1792
2984
# Default values for config file for server-global settings
1793
server_defaults = { "interface": "",
1794
"address": "",
1795
"port": "",
1796
"debug": "False",
1797
"priority":
1798
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1799
"servicename": "Mandos",
1800
"use_dbus": "True",
1801
"use_ipv6": "True",
1802
"debuglevel": "",
1803
}
1804
2985
if gnutls.has_rawpk:
2986
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2987
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2988
else:
2989
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2990
":+SIGN-DSA-SHA256")
2991
server_defaults = {"interface": "",
2992
"address": "",
2993
"port": "",
2994
"debug": "False",
2995
"priority": priority,
2996
"servicename": "Mandos",
2997
"use_dbus": "True",
2998
"use_ipv6": "True",
2999
"debuglevel": "",
3000
"restore": "True",
3001
"socket": "",
3002
"statedir": "/var/lib/mandos",
3003
"foreground": "False",
3004
"zeroconf": "True",
3005
}
3006
del priority
3007
1805
3008
# Parse config file for server-global settings
1806
server_config = configparser.SafeConfigParser(server_defaults)
3009
server_config = configparser.ConfigParser(server_defaults)
1807
3010
del server_defaults
1808
server_config.read(os.path.join(options.configdir,
1809
"mandos.conf"))
1810
# Convert the SafeConfigParser object to a dict
3011
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3012
# Convert the ConfigParser object to a dict
1811
3013
server_settings = server_config.defaults()
1812
3014
# Use the appropriate methods on the non-string config options
1813
for option in ("debug", "use_dbus", "use_ipv6"):
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
1814
3017
server_settings[option] = server_config.getboolean("DEFAULT",
1815
3018
option)
1816
3019
if server_settings["port"]:
1817
3020
server_settings["port"] = server_config.getint("DEFAULT",
1818
3021
"port")
3022
if server_settings["socket"]:
3023
server_settings["socket"] = server_config.getint("DEFAULT",
3024
"socket")
3025
# Later, stdin will, and stdout and stderr might, be dup'ed
3026
# over with an opened os.devnull. But we don't want this to
3027
# happen with a supplied network socket.
3028
if 0 <= server_settings["socket"] <= 2:
3029
server_settings["socket"] = os.dup(server_settings
3030
["socket"])
1819
3031
del server_config
1820
3032
1821
3033
# Override the settings from the config file with command line
1822
3034
# options, if set.
1823
3035
for option in ("interface", "address", "port", "debug",
1824
"priority", "servicename", "configdir",
1825
"use_dbus", "use_ipv6", "debuglevel"):
3036
"priority", "servicename", "configdir", "use_dbus",
3037
"use_ipv6", "debuglevel", "restore", "statedir",
3038
"socket", "foreground", "zeroconf"):
1826
3039
value = getattr(options, option)
1827
3040
if value is not None:
1828
3041
server_settings[option] = value
1829
3042
del options
1830
3043
# Force all strings to be unicode
1831
3044
for option in server_settings.keys():
1832
if type(server_settings[option]) is str:
1833
server_settings[option] = unicode(server_settings[option])
3045
if isinstance(server_settings[option], bytes):
3046
server_settings[option] = (server_settings[option]
3047
.decode("utf-8"))
3048
# Force all boolean options to be boolean
3049
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3050
"foreground", "zeroconf"):
3051
server_settings[option] = bool(server_settings[option])
3052
# Debug implies foreground
3053
if server_settings["debug"]:
3054
server_settings["foreground"] = True
1834
3055
# Now we have our good server settings in "server_settings"
1835
3056
1836
3057
##################################################################
1837
3058
3059
if (not server_settings["zeroconf"]
3060
and not (server_settings["port"]
3061
or server_settings["socket"] != "")):
3062
parser.error("Needs port or socket to work without Zeroconf")
3063
1838
3064
# For convenience
1839
3065
debug = server_settings["debug"]
1840
3066
debuglevel = server_settings["debuglevel"]
1841
3067
use_dbus = server_settings["use_dbus"]
1842
3068
use_ipv6 = server_settings["use_ipv6"]
3069
stored_state_path = os.path.join(server_settings["statedir"],
3070
stored_state_file)
3071
foreground = server_settings["foreground"]
3072
zeroconf = server_settings["zeroconf"]
3073
3074
if debug:
3075
initlogger(debug, logging.DEBUG)
3076
else:
3077
if not debuglevel:
3078
initlogger(debug)
3079
else:
3080
level = getattr(logging, debuglevel.upper())
3081
initlogger(debug, level)
1843
3082
1844
3083
if server_settings["servicename"] != "Mandos":
1845
syslogger.setFormatter(logging.Formatter
1846
('Mandos (%s) [%%(process)d]:'
1847
' %%(levelname)s: %%(message)s'
1848
% server_settings["servicename"]))
1849
3084
syslogger.setFormatter(
3085
logging.Formatter('Mandos ({}) [%(process)d]:'
3086
' %(levelname)s: %(message)s'.format(
3087
server_settings["servicename"])))
3088
1850
3089
# Parse config file with clients
1851
client_defaults = { "timeout": "5m",
1852
"extended_timeout": "15m",
1853
"interval": "2m",
1854
"checker": "fping -q -- %%(host)s",
1855
"host": "",
1856
"approval_delay": "0s",
1857
"approval_duration": "1s",
1858
}
1859
client_config = configparser.SafeConfigParser(client_defaults)
3090
client_config = configparser.ConfigParser(Client.client_defaults)
1860
3091
client_config.read(os.path.join(server_settings["configdir"],
1861
3092
"clients.conf"))
1862
3093
1863
3094
global mandos_dbus_service
1864
3095
mandos_dbus_service = None
1865
1866
tcp_server = MandosServer((server_settings["address"],
1867
server_settings["port"]),
1868
ClientHandler,
1869
interface=(server_settings["interface"]
1870
or None),
1871
use_ipv6=use_ipv6,
1872
gnutls_priority=
1873
server_settings["priority"],
1874
use_dbus=use_dbus)
1875
if not debug:
1876
pidfilename = "/var/run/mandos.pid"
1877
try:
1878
pidfile = open(pidfilename, "w")
1879
except IOError:
1880
logger.error("Could not open file %r", pidfilename)
1881
1882
try:
1883
uid = pwd.getpwnam("_mandos").pw_uid
1884
gid = pwd.getpwnam("_mandos").pw_gid
1885
except KeyError:
1886
try:
1887
uid = pwd.getpwnam("mandos").pw_uid
1888
gid = pwd.getpwnam("mandos").pw_gid
3096
3097
socketfd = None
3098
if server_settings["socket"] != "":
3099
socketfd = server_settings["socket"]
3100
tcp_server = MandosServer(
3101
(server_settings["address"], server_settings["port"]),
3102
ClientHandler,
3103
interface=(server_settings["interface"] or None),
3104
use_ipv6=use_ipv6,
3105
gnutls_priority=server_settings["priority"],
3106
use_dbus=use_dbus,
3107
socketfd=socketfd)
3108
if not foreground:
3109
pidfilename = "/run/mandos.pid"
3110
if not os.path.isdir("/run/."):
3111
pidfilename = "/var/run/mandos.pid"
3112
pidfile = None
3113
try:
3114
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3115
except IOError as e:
3116
logger.error("Could not open file %r", pidfilename,
3117
exc_info=e)
3118
3119
for name, group in (("_mandos", "_mandos"),
3120
("mandos", "mandos"),
3121
("nobody", "nogroup")):
3122
try:
3123
uid = pwd.getpwnam(name).pw_uid
3124
gid = pwd.getpwnam(group).pw_gid
3125
break
1889
3126
except KeyError:
1890
try:
1891
uid = pwd.getpwnam("nobody").pw_uid
1892
gid = pwd.getpwnam("nobody").pw_gid
1893
except KeyError:
1894
uid = 65534
1895
gid = 65534
3127
continue
3128
else:
3129
uid = 65534
3130
gid = 65534
1896
3131
try:
1897
3132
os.setgid(gid)
1898
3133
os.setuid(uid)
3134
if debug:
3135
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3136
gid))
1899
3137
except OSError as error:
1900
if error[0] != errno.EPERM:
1901
raise error
1902
1903
if not debug and not debuglevel:
1904
syslogger.setLevel(logging.WARNING)
1905
console.setLevel(logging.WARNING)
1906
if debuglevel:
1907
level = getattr(logging, debuglevel.upper())
1908
syslogger.setLevel(level)
1909
console.setLevel(level)
3138
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3139
.format(uid, gid, os.strerror(error.errno)))
3140
if error.errno != errno.EPERM:
3141
raise
1910
3142
1911
3143
if debug:
1912
3144
# Enable all possible GnuTLS debugging
1913
3145
1914
3146
# "Use a log level over 10 to enable all debugging options."
1915
3147
# - GnuTLS manual
1916
gnutls.library.functions.gnutls_global_set_log_level(11)
1917
1918
@gnutls.library.types.gnutls_log_func
3148
gnutls.global_set_log_level(11)
3149
3150
@gnutls.log_func
1919
3151
def debug_gnutls(level, string):
1920
3152
logger.debug("GnuTLS: %s", string[:-1])
1921
1922
(gnutls.library.functions
1923
.gnutls_global_set_log_function(debug_gnutls))
1924
3153
3154
gnutls.global_set_log_function(debug_gnutls)
3155
1925
3156
# Redirect stdin so all checkers get /dev/null
1926
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3157
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1927
3158
os.dup2(null, sys.stdin.fileno())
1928
3159
if null > 2:
1929
3160
os.close(null)
1930
else:
1931
# No console logging
1932
logger.removeHandler(console)
1933
3161
1934
3162
# Need to fork before connecting to D-Bus
1935
if not debug:
3163
if not foreground:
1936
3164
# Close all input and output, do double fork, etc.
1937
3165
daemon()
1938
3166
3167
if gi.version_info < (3, 10, 2):
3168
# multiprocessing will use threads, so before we use GLib we
3169
# need to inform GLib that threads will be used.
3170
GLib.threads_init()
3171
1939
3172
global main_loop
1940
3173
# From the Avahi example code
1941
DBusGMainLoop(set_as_default=True )
1942
main_loop = gobject.MainLoop()
3174
DBusGMainLoop(set_as_default=True)
3175
main_loop = GLib.MainLoop()
1943
3176
bus = dbus.SystemBus()
1944
3177
# End of Avahi example code
1945
3178
if use_dbus:
1946
3179
try:
1947
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1948
bus, do_not_queue=True)
1949
except dbus.exceptions.NameExistsException as e:
1950
logger.error(unicode(e) + ", disabling D-Bus")
3180
bus_name = dbus.service.BusName("se.recompile.Mandos",
3181
bus,
3182
do_not_queue=True)
3183
old_bus_name = dbus.service.BusName(
3184
"se.bsnet.fukt.Mandos", bus,
3185
do_not_queue=True)
3186
except dbus.exceptions.DBusException as e:
3187
logger.error("Disabling D-Bus:", exc_info=e)
1951
3188
use_dbus = False
1952
3189
server_settings["use_dbus"] = False
1953
3190
tcp_server.use_dbus = False
1954
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1955
service = AvahiService(name = server_settings["servicename"],
1956
servicetype = "_mandos._tcp",
1957
protocol = protocol, bus = bus)
1958
if server_settings["interface"]:
1959
service.interface = (if_nametoindex
1960
(str(server_settings["interface"])))
1961
3191
if zeroconf:
3192
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3193
service = AvahiServiceToSyslog(
3194
name=server_settings["servicename"],
3195
servicetype="_mandos._tcp",
3196
protocol=protocol,
3197
bus=bus)
3198
if server_settings["interface"]:
3199
service.interface = if_nametoindex(
3200
server_settings["interface"].encode("utf-8"))
3201
1962
3202
global multiprocessing_manager
1963
3203
multiprocessing_manager = multiprocessing.Manager()
1964
3204
1965
3205
client_class = Client
1966
3206
if use_dbus:
1967
client_class = functools.partial(ClientDBus, bus = bus)
1968
def client_config_items(config, section):
1969
special_settings = {
1970
"approved_by_default":
1971
lambda: config.getboolean(section,
1972
"approved_by_default"),
1973
}
1974
for name, value in config.items(section):
3207
client_class = functools.partial(ClientDBus, bus=bus)
3208
3209
client_settings = Client.config_parser(client_config)
3210
old_client_settings = {}
3211
clients_data = {}
3212
3213
# This is used to redirect stdout and stderr for checker processes
3214
global wnull
3215
wnull = open(os.devnull, "w") # A writable /dev/null
3216
# Only used if server is running in foreground but not in debug
3217
# mode
3218
if debug or not foreground:
3219
wnull.close()
3220
3221
# Get client data and settings from last running state.
3222
if server_settings["restore"]:
3223
try:
3224
with open(stored_state_path, "rb") as stored_state:
3225
if sys.version_info.major == 2:
3226
clients_data, old_client_settings = pickle.load(
3227
stored_state)
3228
else:
3229
bytes_clients_data, bytes_old_client_settings = (
3230
pickle.load(stored_state, encoding="bytes"))
3231
# Fix bytes to strings
3232
# clients_data
3233
# .keys()
3234
clients_data = {(key.decode("utf-8")
3235
if isinstance(key, bytes)
3236
else key): value
3237
for key, value in
3238
bytes_clients_data.items()}
3239
del bytes_clients_data
3240
for key in clients_data:
3241
value = {(k.decode("utf-8")
3242
if isinstance(k, bytes) else k): v
3243
for k, v in
3244
clients_data[key].items()}
3245
clients_data[key] = value
3246
# .client_structure
3247
value["client_structure"] = [
3248
(s.decode("utf-8")
3249
if isinstance(s, bytes)
3250
else s) for s in
3251
value["client_structure"]]
3252
# .name, .host, and .checker_command
3253
for k in ("name", "host", "checker_command"):
3254
if isinstance(value[k], bytes):
3255
value[k] = value[k].decode("utf-8")
3256
if "key_id" not in value:
3257
value["key_id"] = ""
3258
elif "fingerprint" not in value:
3259
value["fingerprint"] = ""
3260
# old_client_settings
3261
# .keys()
3262
old_client_settings = {
3263
(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_old_client_settings.items()}
3268
del bytes_old_client_settings
3269
# .host and .checker_command
3270
for value in old_client_settings.values():
3271
for attribute in ("host", "checker_command"):
3272
if isinstance(value[attribute], bytes):
3273
value[attribute] = (value[attribute]
3274
.decode("utf-8"))
3275
os.remove(stored_state_path)
3276
except IOError as e:
3277
if e.errno == errno.ENOENT:
3278
logger.warning("Could not load persistent state:"
3279
" {}".format(os.strerror(e.errno)))
3280
else:
3281
logger.critical("Could not load persistent state:",
3282
exc_info=e)
3283
raise
3284
except EOFError as e:
3285
logger.warning("Could not load persistent state: "
3286
"EOFError:",
3287
exc_info=e)
3288
3289
with PGPEngine() as pgp:
3290
for client_name, client in clients_data.items():
3291
# Skip removed clients
3292
if client_name not in client_settings:
3293
continue
3294
3295
# Decide which value to use after restoring saved state.
3296
# We have three different values: Old config file,
3297
# new config file, and saved state.
3298
# New config value takes precedence if it differs from old
3299
# config value, otherwise use saved state.
3300
for name, value in client_settings[client_name].items():
3301
try:
3302
# For each value in new config, check if it
3303
# differs from the old config value (Except for
3304
# the "secret" attribute)
3305
if (name != "secret"
3306
and (value !=
3307
old_client_settings[client_name][name])):
3308
client[name] = value
3309
except KeyError:
3310
pass
3311
3312
# Clients who has passed its expire date can still be
3313
# enabled if its last checker was successful. A Client
3314
# whose checker succeeded before we stored its state is
3315
# assumed to have successfully run all checkers during
3316
# downtime.
3317
if client["enabled"]:
3318
if datetime.datetime.utcnow() >= client["expires"]:
3319
if not client["last_checked_ok"]:
3320
logger.warning(
3321
"disabling client {} - Client never "
3322
"performed a successful checker".format(
3323
client_name))
3324
client["enabled"] = False
3325
elif client["last_checker_status"] != 0:
3326
logger.warning(
3327
"disabling client {} - Client last"
3328
" checker failed with error code"
3329
" {}".format(
3330
client_name,
3331
client["last_checker_status"]))
3332
client["enabled"] = False
3333
else:
3334
client["expires"] = (
3335
datetime.datetime.utcnow()
3336
+ client["timeout"])
3337
logger.debug("Last checker succeeded,"
3338
" keeping {} enabled".format(
3339
client_name))
1975
3340
try:
1976
yield (name, special_settings[name]())
1977
except KeyError:
1978
yield (name, value)
1979
1980
tcp_server.clients.update(set(
1981
client_class(name = section,
1982
config= dict(client_config_items(
1983
client_config, section)))
1984
for section in client_config.sections()))
3341
client["secret"] = pgp.decrypt(
3342
client["encrypted_secret"],
3343
client_settings[client_name]["secret"])
3344
except PGPError:
3345
# If decryption fails, we use secret from new settings
3346
logger.debug("Failed to decrypt {} old secret".format(
3347
client_name))
3348
client["secret"] = (client_settings[client_name]
3349
["secret"])
3350
3351
# Add/remove clients based on new changes made to config
3352
for client_name in (set(old_client_settings)
3353
- set(client_settings)):
3354
del clients_data[client_name]
3355
for client_name in (set(client_settings)
3356
- set(old_client_settings)):
3357
clients_data[client_name] = client_settings[client_name]
3358
3359
# Create all client objects
3360
for client_name, client in clients_data.items():
3361
tcp_server.clients[client_name] = client_class(
3362
name=client_name,
3363
settings=client,
3364
server_settings=server_settings)
3365
1985
3366
if not tcp_server.clients:
1986
3367
logger.warning("No clients defined")
1987
1988
if not debug:
1989
try:
1990
with pidfile:
1991
pid = os.getpid()
1992
pidfile.write(str(pid) + "\n".encode("utf-8"))
1993
del pidfile
1994
except IOError:
1995
logger.error("Could not write to file %r with PID %d",
1996
pidfilename, pid)
1997
except NameError:
1998
# "pidfile" was never created
1999
pass
3368
3369
if not foreground:
3370
if pidfile is not None:
3371
pid = os.getpid()
3372
try:
3373
with pidfile:
3374
print(pid, file=pidfile)
3375
except IOError:
3376
logger.error("Could not write to file %r with PID %d",
3377
pidfilename, pid)
3378
del pidfile
2000
3379
del pidfilename
2001
2002
signal.signal(signal.SIGINT, signal.SIG_IGN)
2003
2004
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2005
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2006
3380
3381
for termsig in (signal.SIGHUP, signal.SIGTERM):
3382
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3383
lambda: main_loop.quit() and False)
3384
2007
3385
if use_dbus:
2008
class MandosDBusService(dbus.service.Object):
3386
3387
@alternate_dbus_interfaces(
3388
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3389
class MandosDBusService(DBusObjectWithObjectManager):
2009
3390
"""A D-Bus proxy object"""
3391
2010
3392
def __init__(self):
2011
3393
dbus.service.Object.__init__(self, bus, "/")
2012
_interface = "se.bsnet.fukt.Mandos"
2013
3394
3395
_interface = "se.recompile.Mandos"
3396
2014
3397
@dbus.service.signal(_interface, signature="o")
2015
3398
def ClientAdded(self, objpath):
2016
3399
"D-Bus signal"
2017
3400
pass
2018
3401
2019
3402
@dbus.service.signal(_interface, signature="ss")
2020
def ClientNotFound(self, fingerprint, address):
3403
def ClientNotFound(self, key_id, address):
2021
3404
"D-Bus signal"
2022
3405
pass
2023
3406
3407
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3408
"true"})
2024
3409
@dbus.service.signal(_interface, signature="os")
2025
3410
def ClientRemoved(self, objpath, name):
2026
3411
"D-Bus signal"
2027
3412
pass
2028
3413
3414
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3415
"true"})
2029
3416
@dbus.service.method(_interface, out_signature="ao")
2030
3417
def GetAllClients(self):
2031
3418
"D-Bus method"
2032
return dbus.Array(c.dbus_object_path
2033
for c in tcp_server.clients)
2034
3419
return dbus.Array(c.dbus_object_path for c in
3420
tcp_server.clients.values())
3421
3422
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3423
"true"})
2035
3424
@dbus.service.method(_interface,
2036
3425
out_signature="a{oa{sv}}")
2037
3426
def GetAllClientsWithProperties(self):
2038
3427
"D-Bus method"
2039
3428
return dbus.Dictionary(
2040
((c.dbus_object_path, c.GetAll(""))
2041
for c in tcp_server.clients),
3429
{c.dbus_object_path: c.GetAll(
3430
"se.recompile.Mandos.Client")
3431
for c in tcp_server.clients.values()},
2042
3432
signature="oa{sv}")
2043
3433
2044
3434
@dbus.service.method(_interface, in_signature="o")
2045
3435
def RemoveClient(self, object_path):
2046
3436
"D-Bus method"
2047
for c in tcp_server.clients:
3437
for c in tcp_server.clients.values():
2048
3438
if c.dbus_object_path == object_path:
2049
tcp_server.clients.remove(c)
3439
del tcp_server.clients[c.name]
2050
3440
c.remove_from_connection()
2051
# Don't signal anything except ClientRemoved
3441
# Don't signal the disabling
2052
3442
c.disable(quiet=True)
2053
# Emit D-Bus signal
2054
self.ClientRemoved(object_path, c.name)
3443
# Emit D-Bus signal for removal
3444
self.client_removed_signal(c)
2055
3445
return
2056
3446
raise KeyError(object_path)
2057
3447
2058
3448
del _interface
2059
3449
3450
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3451
out_signature="a{oa{sa{sv}}}")
3452
def GetManagedObjects(self):
3453
"""D-Bus method"""
3454
return dbus.Dictionary(
3455
{client.dbus_object_path:
3456
dbus.Dictionary(
3457
{interface: client.GetAll(interface)
3458
for interface in
3459
client._get_all_interface_names()})
3460
for client in tcp_server.clients.values()})
3461
3462
def client_added_signal(self, client):
3463
"""Send the new standard signal and the old signal"""
3464
if use_dbus:
3465
# New standard signal
3466
self.InterfacesAdded(
3467
client.dbus_object_path,
3468
dbus.Dictionary(
3469
{interface: client.GetAll(interface)
3470
for interface in
3471
client._get_all_interface_names()}))
3472
# Old signal
3473
self.ClientAdded(client.dbus_object_path)
3474
3475
def client_removed_signal(self, client):
3476
"""Send the new standard signal and the old signal"""
3477
if use_dbus:
3478
# New standard signal
3479
self.InterfacesRemoved(
3480
client.dbus_object_path,
3481
client._get_all_interface_names())
3482
# Old signal
3483
self.ClientRemoved(client.dbus_object_path,
3484
client.name)
3485
2060
3486
mandos_dbus_service = MandosDBusService()
2061
3487
3488
# Save modules to variables to exempt the modules from being
3489
# unloaded before the function registered with atexit() is run.
3490
mp = multiprocessing
3491
wn = wnull
3492
2062
3493
def cleanup():
2063
3494
"Cleanup function; run on exit"
2064
service.cleanup()
2065
3495
if zeroconf:
3496
service.cleanup()
3497
3498
mp.active_children()
3499
wn.close()
3500
if not (tcp_server.clients or client_settings):
3501
return
3502
3503
# Store client before exiting. Secrets are encrypted with key
3504
# based on what config file has. If config file is
3505
# removed/edited, old secret will thus be unrecovable.
3506
clients = {}
3507
with PGPEngine() as pgp:
3508
for client in tcp_server.clients.values():
3509
key = client_settings[client.name]["secret"]
3510
client.encrypted_secret = pgp.encrypt(client.secret,
3511
key)
3512
client_dict = {}
3513
3514
# A list of attributes that can not be pickled
3515
# + secret.
3516
exclude = {"bus", "changedstate", "secret",
3517
"checker", "server_settings"}
3518
for name, typ in inspect.getmembers(dbus.service
3519
.Object):
3520
exclude.add(name)
3521
3522
client_dict["encrypted_secret"] = (client
3523
.encrypted_secret)
3524
for attr in client.client_structure:
3525
if attr not in exclude:
3526
client_dict[attr] = getattr(client, attr)
3527
3528
clients[client.name] = client_dict
3529
del client_settings[client.name]["secret"]
3530
3531
try:
3532
with tempfile.NamedTemporaryFile(
3533
mode='wb',
3534
suffix=".pickle",
3535
prefix='clients-',
3536
dir=os.path.dirname(stored_state_path),
3537
delete=False) as stored_state:
3538
pickle.dump((clients, client_settings), stored_state,
3539
protocol=2)
3540
tempname = stored_state.name
3541
os.rename(tempname, stored_state_path)
3542
except (IOError, OSError) as e:
3543
if not debug:
3544
try:
3545
os.remove(tempname)
3546
except NameError:
3547
pass
3548
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3549
logger.warning("Could not save persistent state: {}"
3550
.format(os.strerror(e.errno)))
3551
else:
3552
logger.warning("Could not save persistent state:",
3553
exc_info=e)
3554
raise
3555
3556
# Delete all clients, and settings from config
2066
3557
while tcp_server.clients:
2067
client = tcp_server.clients.pop()
3558
name, client = tcp_server.clients.popitem()
2068
3559
if use_dbus:
2069
3560
client.remove_from_connection()
2070
client.disable_hook = None
2071
# Don't signal anything except ClientRemoved
3561
# Don't signal the disabling
2072
3562
client.disable(quiet=True)
3563
# Emit D-Bus signal for removal
2073
3564
if use_dbus:
2074
# Emit D-Bus signal
2075
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2076
client.name)
2077
3565
mandos_dbus_service.client_removed_signal(client)
3566
client_settings.clear()
3567
2078
3568
atexit.register(cleanup)
2079
2080
for client in tcp_server.clients:
3569
3570
for client in tcp_server.clients.values():
2081
3571
if use_dbus:
2082
# Emit D-Bus signal
2083
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2084
client.enable()
2085
3572
# Emit D-Bus signal for adding
3573
mandos_dbus_service.client_added_signal(client)
3574
# Need to initiate checking of clients
3575
if client.enabled:
3576
client.init_checker()
3577
2086
3578
tcp_server.enable()
2087
3579
tcp_server.server_activate()
2088
3580
2089
3581
# Find out what port we got
2090
service.port = tcp_server.socket.getsockname()[1]
3582
if zeroconf:
3583
service.port = tcp_server.socket.getsockname()[1]
2091
3584
if use_ipv6:
2092
3585
logger.info("Now listening on address %r, port %d,"
2093
" flowinfo %d, scope_id %d"
2094
% tcp_server.socket.getsockname())
3586
" flowinfo %d, scope_id %d",
3587
*tcp_server.socket.getsockname())
2095
3588
else: # IPv4
2096
logger.info("Now listening on address %r, port %d"
2097
% tcp_server.socket.getsockname())
2098
2099
#service.interface = tcp_server.socket.getsockname()[3]
2100
3589
logger.info("Now listening on address %r, port %d",
3590
*tcp_server.socket.getsockname())
3591
3592
# service.interface = tcp_server.socket.getsockname()[3]
3593
2101
3594
try:
2102
# From the Avahi example code
2103
try:
2104
service.activate()
2105
except dbus.exceptions.DBusException as error:
2106
logger.critical("DBusException: %s", error)
2107
cleanup()
2108
sys.exit(1)
2109
# End of Avahi example code
2110
2111
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2112
lambda *args, **kwargs:
2113
(tcp_server.handle_request
2114
(*args[2:], **kwargs) or True))
2115
3595
if zeroconf:
3596
# From the Avahi example code
3597
try:
3598
service.activate()
3599
except dbus.exceptions.DBusException as error:
3600
logger.critical("D-Bus Exception", exc_info=error)
3601
cleanup()
3602
sys.exit(1)
3603
# End of Avahi example code
3604
3605
GLib.io_add_watch(
3606
GLib.IOChannel.unix_new(tcp_server.fileno()),
3607
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3608
lambda *args, **kwargs: (tcp_server.handle_request
3609
(*args[2:], **kwargs) or True))
3610
2116
3611
logger.debug("Starting main loop")
2117
3612
main_loop.run()
2118
3613
except AvahiError as error:
2119
logger.critical("AvahiError: %s", error)
3614
logger.critical("Avahi Error", exc_info=error)
2120
3615
cleanup()
2121
3616
sys.exit(1)
2122
3617
except KeyboardInterrupt:
2127
3622
# Must run before the D-Bus bus name gets deregistered
2128
3623
cleanup()
2129
3624
3625
3626
def should_only_run_tests():
3627
parser = argparse.ArgumentParser(add_help=False)
3628
parser.add_argument("--check", action='store_true')
3629
args, unknown_args = parser.parse_known_args()
3630
run_tests = args.check
3631
if run_tests:
3632
# Remove --check argument from sys.argv
3633
sys.argv[1:] = unknown_args
3634
return run_tests
3635
3636
# Add all tests from doctest strings
3637
def load_tests(loader, tests, none):
3638
import doctest
3639
tests.addTests(doctest.DocTestSuite())
3640
return tests
3641
2130
3642
if __name__ == '__main__':
2131
main()
3643
try:
3644
if should_only_run_tests():
3645
# Call using ./mandos --check [--verbose]
3646
unittest.main()
3647
else:
3648
main()
3649
finally:
3650
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0