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- Committer: Teddy Hogeborn
- Date: 2011-10-03 14:58:41 UTC
- mto: (505.2.5 mandos-client-network-hooks)
- mto: This revision was merged to the branch mainline in revision 506.
- Revision ID: teddy@fukt.bsnet.se-20111003145841-4b6euesc9i9974am
* mandos (transitional_dbus_metaclass): Renamed to
"AlternateDBusNamesMetaclass".
All users changed. Also added
comments, wrapped lines, and
searching of all base classes
for D-Bus attributes. It now
adds the *old* interface name,
not the new one.
(ClientDBus, MandosDBusService): Use the new interface names.
"AlternateDBusNamesMetaclass".
All users changed. Also added
comments, wrapped lines, and
searching of all base classes
for D-Bus attributes. It now
adds the *old* interface name,
not the new one.
(ClientDBus, MandosDBusService): Use the new interface names.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
32
# Contact the authors at <mandos@recompile.se>.
33
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
import shlex
83
66
84
67
import dbus
85
68
import dbus.service
86
import gi
87
from gi.repository import GLib
69
import gobject
70
import avahi
88
71
from dbus.mainloop.glib import DBusGMainLoop
89
72
import ctypes
90
73
import ctypes.util
91
74
import xml.dom.minidom
92
75
import inspect
93
76
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
77
try:
122
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
79
except AttributeError:
124
80
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
127
81
from IN import SO_BINDTODEVICE
128
82
except ImportError:
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.11"
147
stored_state_file = "clients.pickle"
148
149
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
152
153
try:
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
156
except (OSError, AttributeError):
157
158
def if_nametoindex(interface):
159
"Get an interface index the hard way, i.e. using fcntl()"
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
161
with contextlib.closing(socket.socket()) as s:
162
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
165
return interface_index
166
167
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
184
def initlogger(debug, level=logging.WARNING):
185
"""init logger and add loglevel"""
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
191
syslogger.setFormatter(logging.Formatter
192
('Mandos [%(process)d]: %(levelname)s:'
193
' %(message)s'))
194
logger.addHandler(syslogger)
195
196
if debug:
197
console = logging.StreamHandler()
198
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
199
' [%(process)d]:'
200
' %(levelname)s:'
201
' %(message)s'))
202
logger.addHandler(console)
203
logger.setLevel(level)
204
205
206
class PGPError(Exception):
207
"""Exception if encryption/decryption fails"""
208
pass
209
210
211
class PGPEngine:
212
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
214
def __init__(self):
215
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ['--batch',
228
'--homedir', self.tempdir,
229
'--force-mdc',
230
'--quiet']
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
235
def __enter__(self):
236
return self
237
238
def __exit__(self, exc_type, exc_value, traceback):
239
self._cleanup()
240
return False
241
242
def __del__(self):
243
self._cleanup()
244
245
def _cleanup(self):
246
if self.tempdir is not None:
247
# Delete contents of tempdir
248
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
250
for filename in files:
251
os.remove(os.path.join(root, filename))
252
for dirname in dirs:
253
os.rmdir(os.path.join(root, dirname))
254
# Remove tempdir
255
os.rmdir(self.tempdir)
256
self.tempdir = None
257
258
def password_encode(self, password):
259
# Passphrase can not be empty and can not contain newlines or
260
# NUL bytes. So we prefix it and hex encode it.
261
encoded = b"mandos" + binascii.hexlify(password)
262
if len(encoded) > 2048:
263
# GnuPG can't handle long passwords, so encode differently
264
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
.replace(b"\n", b"\\n")
266
.replace(b"\0", b"\\x00"))
267
return encoded
268
269
def encrypt(self, data, password):
270
passphrase = self.password_encode(password)
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
273
passfile.write(passphrase)
274
passfile.flush()
275
proc = subprocess.Popen([self.gpg, '--symmetric',
276
'--passphrase-file',
277
passfile.name]
278
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
283
if proc.returncode != 0:
284
raise PGPError(err)
285
return ciphertext
286
287
def decrypt(self, data, password):
288
passphrase = self.password_encode(password)
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
291
passfile.write(passphrase)
292
passfile.flush()
293
proc = subprocess.Popen([self.gpg, '--decrypt',
294
'--passphrase-file',
295
passfile.name]
296
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
301
if proc.returncode != 0:
302
raise PGPError(err)
303
return decrypted_plaintext
304
305
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
83
SO_BINDTODEVICE = None
84
85
86
version = "1.3.1"
87
88
#logger = logging.getLogger('mandos')
89
logger = logging.Logger('mandos')
90
syslogger = (logging.handlers.SysLogHandler
91
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
92
address = str("/dev/log")))
93
syslogger.setFormatter(logging.Formatter
94
('Mandos [%(process)d]: %(levelname)s:'
95
' %(message)s'))
96
logger.addHandler(syslogger)
97
98
console = logging.StreamHandler()
99
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
331
103
332
104
class AvahiError(Exception):
333
105
def __init__(self, value, *args, **kwargs):
334
106
self.value = value
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
338
110
339
111
class AvahiServiceError(AvahiError):
340
112
pass
341
113
342
343
114
class AvahiGroupError(AvahiError):
344
115
pass
345
116
346
117
347
class AvahiService:
118
class AvahiService(object):
348
119
"""An Avahi (Zeroconf) service.
349
120
350
121
Attributes:
351
122
interface: integer; avahi.IF_UNSPEC or an interface index.
352
123
Used to optionally bind to the specified interface.
353
124
name: string; Example: 'Mandos'
354
125
type: string; Example: '_mandos._tcp'.
355
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
356
127
port: integer; what port to announce
357
128
TXT: list of strings; TXT record for the service
358
129
domain: string; Domain to publish on, default to .local if empty.
364
135
server: D-Bus Server
365
136
bus: dbus.SystemBus()
366
137
"""
367
368
def __init__(self,
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
138
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
139
servicetype = None, port = None, TXT = None,
140
domain = "", host = "", max_renames = 32768,
141
protocol = avahi.PROTO_UNSPEC, bus = None):
379
142
self.interface = interface
380
143
self.name = name
381
144
self.type = servicetype
390
153
self.server = None
391
154
self.bus = bus
392
155
self.entry_group_state_changed_match = None
393
394
def rename(self, remove=True):
156
def rename(self):
395
157
"""Derived from the Avahi example code"""
396
158
if self.rename_count >= self.max_renames:
397
159
logger.critical("No suitable Zeroconf service name found"
398
160
" after %i retries, exiting.",
399
161
self.rename_count)
400
162
raise AvahiServiceError("Too many renames")
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
163
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
404
164
logger.info("Changing Zeroconf service name to %r ...",
405
165
self.name)
406
if remove:
407
self.remove()
166
syslogger.setFormatter(logging.Formatter
167
('Mandos (%s) [%%(process)d]:'
168
' %%(levelname)s: %%(message)s'
169
% self.name))
170
self.remove()
408
171
try:
409
172
self.add()
410
173
except dbus.exceptions.DBusException as error:
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
logger.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
logger.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
174
logger.critical("DBusException: %s", error)
175
self.cleanup()
176
os._exit(1)
177
self.rename_count += 1
420
178
def remove(self):
421
179
"""Derived from the Avahi example code"""
422
180
if self.entry_group_state_changed_match is not None:
424
182
self.entry_group_state_changed_match = None
425
183
if self.group is not None:
426
184
self.group.Reset()
427
428
185
def add(self):
429
186
"""Derived from the Avahi example code"""
430
187
self.remove()
435
192
avahi.DBUS_INTERFACE_ENTRY_GROUP)
436
193
self.entry_group_state_changed_match = (
437
194
self.group.connect_to_signal(
438
'StateChanged', self.entry_group_state_changed))
195
'StateChanged', self .entry_group_state_changed))
439
196
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
440
197
self.name, self.type)
441
198
self.group.AddService(
447
204
dbus.UInt16(self.port),
448
205
avahi.string_array_to_txt_array(self.TXT))
449
206
self.group.Commit()
450
451
207
def entry_group_state_changed(self, state, error):
452
208
"""Derived from the Avahi example code"""
453
209
logger.debug("Avahi entry group state change: %i", state)
454
210
455
211
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
212
logger.debug("Zeroconf service established.")
457
213
elif state == avahi.ENTRY_GROUP_COLLISION:
459
215
self.rename()
460
216
elif state == avahi.ENTRY_GROUP_FAILURE:
461
217
logger.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
218
unicode(error))
219
raise AvahiGroupError("State changed: %s"
220
% unicode(error))
465
221
def cleanup(self):
466
222
"""Derived from the Avahi example code"""
467
223
if self.group is not None:
468
224
try:
469
225
self.group.Free()
470
226
except (dbus.exceptions.UnknownMethodException,
471
dbus.exceptions.DBusException):
227
dbus.exceptions.DBusException) as e:
472
228
pass
473
229
self.group = None
474
230
self.remove()
475
476
231
def server_state_changed(self, state, error=None):
477
232
"""Derived from the Avahi example code"""
478
233
logger.debug("Avahi server state change: %i", state)
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
234
bad_states = { avahi.SERVER_INVALID:
235
"Zeroconf server invalid",
236
avahi.SERVER_REGISTERING: None,
237
avahi.SERVER_COLLISION:
238
"Zeroconf server name collision",
239
avahi.SERVER_FAILURE:
240
"Zeroconf server failure" }
485
241
if state in bad_states:
486
242
if bad_states[state] is not None:
487
243
if error is None:
490
246
logger.error(bad_states[state] + ": %r", error)
491
247
self.cleanup()
492
248
elif state == avahi.SERVER_RUNNING:
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
logger.info("Local Zeroconf service name"
499
" collision.")
500
return self.rename(remove=False)
501
else:
502
logger.critical("D-Bus Exception", exc_info=error)
503
self.cleanup()
504
os._exit(1)
249
self.add()
505
250
else:
506
251
if error is None:
507
252
logger.debug("Unknown state: %r", state)
508
253
else:
509
254
logger.debug("Unknown state: %r: %r", state, error)
510
511
255
def activate(self):
512
256
"""Derived from the Avahi example code"""
513
257
if self.server is None:
517
261
follow_name_owner_changes=True),
518
262
avahi.DBUS_INTERFACE_SERVER)
519
263
self.server.connect_to_signal("StateChanged",
520
self.server_state_changed)
264
self.server_state_changed)
521
265
self.server_state_changed(self.server.GetState())
522
266
523
267
524
class AvahiServiceToSyslog(AvahiService):
525
def rename(self, *args, **kwargs):
526
"""Add the new name to the syslog messages"""
527
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
528
syslogger.setFormatter(logging.Formatter(
529
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
530
.format(self.name)))
531
return ret
532
533
534
# Pretend that we have a GnuTLS module
535
class gnutls:
536
"""This isn't so much a class as it is a module-like namespace."""
537
538
library = ctypes.util.find_library("gnutls")
539
if library is None:
540
library = ctypes.util.find_library("gnutls-deb0")
541
_library = ctypes.cdll.LoadLibrary(library)
542
del library
543
544
# Unless otherwise indicated, the constants and types below are
545
# all from the gnutls/gnutls.h C header file.
546
547
# Constants
548
E_SUCCESS = 0
549
E_INTERRUPTED = -52
550
E_AGAIN = -28
551
CRT_OPENPGP = 2
552
CRT_RAWPK = 3
553
CLIENT = 2
554
SHUT_RDWR = 0
555
CRD_CERTIFICATE = 1
556
E_NO_CERTIFICATE_FOUND = -49
557
X509_FMT_DER = 0
558
NO_TICKETS = 1<<10
559
ENABLE_RAWPK = 1<<18
560
CTYPE_PEERS = 3
561
KEYID_USE_SHA256 = 1 # gnutls/x509.h
562
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
563
564
# Types
565
class session_int(ctypes.Structure):
566
_fields_ = []
567
session_t = ctypes.POINTER(session_int)
568
569
class certificate_credentials_st(ctypes.Structure):
570
_fields_ = []
571
certificate_credentials_t = ctypes.POINTER(
572
certificate_credentials_st)
573
certificate_type_t = ctypes.c_int
574
575
class datum_t(ctypes.Structure):
576
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
577
('size', ctypes.c_uint)]
578
579
class openpgp_crt_int(ctypes.Structure):
580
_fields_ = []
581
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
582
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
583
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
584
credentials_type_t = ctypes.c_int
585
transport_ptr_t = ctypes.c_void_p
586
close_request_t = ctypes.c_int
587
588
# Exceptions
589
class Error(Exception):
590
def __init__(self, message=None, code=None, args=()):
591
# Default usage is by a message string, but if a return
592
# code is passed, convert it to a string with
593
# gnutls.strerror()
594
self.code = code
595
if message is None and code is not None:
596
message = gnutls.strerror(code)
597
return super(gnutls.Error, self).__init__(
598
message, *args)
599
600
class CertificateSecurityError(Error):
601
pass
602
603
# Classes
604
class Credentials:
605
def __init__(self):
606
self._c_object = gnutls.certificate_credentials_t()
607
gnutls.certificate_allocate_credentials(
608
ctypes.byref(self._c_object))
609
self.type = gnutls.CRD_CERTIFICATE
610
611
def __del__(self):
612
gnutls.certificate_free_credentials(self._c_object)
613
614
class ClientSession:
615
def __init__(self, socket, credentials=None):
616
self._c_object = gnutls.session_t()
617
gnutls_flags = gnutls.CLIENT
618
if gnutls.check_version(b"3.5.6"):
619
gnutls_flags |= gnutls.NO_TICKETS
620
if gnutls.has_rawpk:
621
gnutls_flags |= gnutls.ENABLE_RAWPK
622
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
623
del gnutls_flags
624
gnutls.set_default_priority(self._c_object)
625
gnutls.transport_set_ptr(self._c_object, socket.fileno())
626
gnutls.handshake_set_private_extensions(self._c_object,
627
True)
628
self.socket = socket
629
if credentials is None:
630
credentials = gnutls.Credentials()
631
gnutls.credentials_set(self._c_object, credentials.type,
632
ctypes.cast(credentials._c_object,
633
ctypes.c_void_p))
634
self.credentials = credentials
635
636
def __del__(self):
637
gnutls.deinit(self._c_object)
638
639
def handshake(self):
640
return gnutls.handshake(self._c_object)
641
642
def send(self, data):
643
data = bytes(data)
644
data_len = len(data)
645
while data_len > 0:
646
data_len -= gnutls.record_send(self._c_object,
647
data[-data_len:],
648
data_len)
649
650
def bye(self):
651
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
652
653
# Error handling functions
654
def _error_code(result):
655
"""A function to raise exceptions on errors, suitable
656
for the 'restype' attribute on ctypes functions"""
657
if result >= 0:
658
return result
659
if result == gnutls.E_NO_CERTIFICATE_FOUND:
660
raise gnutls.CertificateSecurityError(code=result)
661
raise gnutls.Error(code=result)
662
663
def _retry_on_error(result, func, arguments):
664
"""A function to retry on some errors, suitable
665
for the 'errcheck' attribute on ctypes functions"""
666
while result < 0:
667
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
668
return _error_code(result)
669
result = func(*arguments)
670
return result
671
672
# Unless otherwise indicated, the function declarations below are
673
# all from the gnutls/gnutls.h C header file.
674
675
# Functions
676
priority_set_direct = _library.gnutls_priority_set_direct
677
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
678
ctypes.POINTER(ctypes.c_char_p)]
679
priority_set_direct.restype = _error_code
680
681
init = _library.gnutls_init
682
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
683
init.restype = _error_code
684
685
set_default_priority = _library.gnutls_set_default_priority
686
set_default_priority.argtypes = [session_t]
687
set_default_priority.restype = _error_code
688
689
record_send = _library.gnutls_record_send
690
record_send.argtypes = [session_t, ctypes.c_void_p,
691
ctypes.c_size_t]
692
record_send.restype = ctypes.c_ssize_t
693
record_send.errcheck = _retry_on_error
694
695
certificate_allocate_credentials = (
696
_library.gnutls_certificate_allocate_credentials)
697
certificate_allocate_credentials.argtypes = [
698
ctypes.POINTER(certificate_credentials_t)]
699
certificate_allocate_credentials.restype = _error_code
700
701
certificate_free_credentials = (
702
_library.gnutls_certificate_free_credentials)
703
certificate_free_credentials.argtypes = [
704
certificate_credentials_t]
705
certificate_free_credentials.restype = None
706
707
handshake_set_private_extensions = (
708
_library.gnutls_handshake_set_private_extensions)
709
handshake_set_private_extensions.argtypes = [session_t,
710
ctypes.c_int]
711
handshake_set_private_extensions.restype = None
712
713
credentials_set = _library.gnutls_credentials_set
714
credentials_set.argtypes = [session_t, credentials_type_t,
715
ctypes.c_void_p]
716
credentials_set.restype = _error_code
717
718
strerror = _library.gnutls_strerror
719
strerror.argtypes = [ctypes.c_int]
720
strerror.restype = ctypes.c_char_p
721
722
certificate_type_get = _library.gnutls_certificate_type_get
723
certificate_type_get.argtypes = [session_t]
724
certificate_type_get.restype = _error_code
725
726
certificate_get_peers = _library.gnutls_certificate_get_peers
727
certificate_get_peers.argtypes = [session_t,
728
ctypes.POINTER(ctypes.c_uint)]
729
certificate_get_peers.restype = ctypes.POINTER(datum_t)
730
731
global_set_log_level = _library.gnutls_global_set_log_level
732
global_set_log_level.argtypes = [ctypes.c_int]
733
global_set_log_level.restype = None
734
735
global_set_log_function = _library.gnutls_global_set_log_function
736
global_set_log_function.argtypes = [log_func]
737
global_set_log_function.restype = None
738
739
deinit = _library.gnutls_deinit
740
deinit.argtypes = [session_t]
741
deinit.restype = None
742
743
handshake = _library.gnutls_handshake
744
handshake.argtypes = [session_t]
745
handshake.restype = _error_code
746
handshake.errcheck = _retry_on_error
747
748
transport_set_ptr = _library.gnutls_transport_set_ptr
749
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
750
transport_set_ptr.restype = None
751
752
bye = _library.gnutls_bye
753
bye.argtypes = [session_t, close_request_t]
754
bye.restype = _error_code
755
bye.errcheck = _retry_on_error
756
757
check_version = _library.gnutls_check_version
758
check_version.argtypes = [ctypes.c_char_p]
759
check_version.restype = ctypes.c_char_p
760
761
_need_version = b"3.3.0"
762
if check_version(_need_version) is None:
763
raise self.Error("Needs GnuTLS {} or later"
764
.format(_need_version))
765
766
_tls_rawpk_version = b"3.6.6"
767
has_rawpk = bool(check_version(_tls_rawpk_version))
768
769
if has_rawpk:
770
# Types
771
class pubkey_st(ctypes.Structure):
772
_fields = []
773
pubkey_t = ctypes.POINTER(pubkey_st)
774
775
x509_crt_fmt_t = ctypes.c_int
776
777
# All the function declarations below are from gnutls/abstract.h
778
pubkey_init = _library.gnutls_pubkey_init
779
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
780
pubkey_init.restype = _error_code
781
782
pubkey_import = _library.gnutls_pubkey_import
783
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
784
x509_crt_fmt_t]
785
pubkey_import.restype = _error_code
786
787
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
788
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
789
ctypes.POINTER(ctypes.c_ubyte),
790
ctypes.POINTER(ctypes.c_size_t)]
791
pubkey_get_key_id.restype = _error_code
792
793
pubkey_deinit = _library.gnutls_pubkey_deinit
794
pubkey_deinit.argtypes = [pubkey_t]
795
pubkey_deinit.restype = None
796
else:
797
# All the function declarations below are from gnutls/openpgp.h
798
799
openpgp_crt_init = _library.gnutls_openpgp_crt_init
800
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
801
openpgp_crt_init.restype = _error_code
802
803
openpgp_crt_import = _library.gnutls_openpgp_crt_import
804
openpgp_crt_import.argtypes = [openpgp_crt_t,
805
ctypes.POINTER(datum_t),
806
openpgp_crt_fmt_t]
807
openpgp_crt_import.restype = _error_code
808
809
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
810
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
811
ctypes.POINTER(ctypes.c_uint)]
812
openpgp_crt_verify_self.restype = _error_code
813
814
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
815
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
816
openpgp_crt_deinit.restype = None
817
818
openpgp_crt_get_fingerprint = (
819
_library.gnutls_openpgp_crt_get_fingerprint)
820
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
821
ctypes.c_void_p,
822
ctypes.POINTER(
823
ctypes.c_size_t)]
824
openpgp_crt_get_fingerprint.restype = _error_code
825
826
if check_version(b"3.6.4"):
827
certificate_type_get2 = _library.gnutls_certificate_type_get2
828
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
829
certificate_type_get2.restype = _error_code
830
831
# Remove non-public functions
832
del _error_code, _retry_on_error
833
834
835
def call_pipe(connection, # : multiprocessing.Connection
836
func, *args, **kwargs):
837
"""This function is meant to be called by multiprocessing.Process
838
839
This function runs func(*args, **kwargs), and writes the resulting
840
return value on the provided multiprocessing.Connection.
841
"""
842
connection.send(func(*args, **kwargs))
843
connection.close()
844
845
846
class Client:
268
def _timedelta_to_milliseconds(td):
269
"Convert a datetime.timedelta() to milliseconds"
270
return ((td.days * 24 * 60 * 60 * 1000)
271
+ (td.seconds * 1000)
272
+ (td.microseconds // 1000))
273
274
class Client(object):
847
275
"""A representation of a client host served by this server.
848
276
849
277
Attributes:
850
approved: bool(); 'None' if not yet approved/disapproved
278
_approved: bool(); 'None' if not yet approved/disapproved
851
279
approval_delay: datetime.timedelta(); Time to wait for approval
852
280
approval_duration: datetime.timedelta(); Duration of one approval
853
checker: multiprocessing.Process(); a running checker process used
854
to see if the client lives. 'None' if no process is
855
running.
856
checker_callback_tag: a GLib event source tag, or None
281
checker: subprocess.Popen(); a running checker process used
282
to see if the client lives.
283
'None' if no process is running.
284
checker_callback_tag: a gobject event source tag, or None
857
285
checker_command: string; External command which is run to check
858
286
if client lives. %() expansions are done at
859
287
runtime with vars(self) as dict, so that for
860
288
instance %(name)s can be used in the command.
861
checker_initiator_tag: a GLib event source tag, or None
289
checker_initiator_tag: a gobject event source tag, or None
862
290
created: datetime.datetime(); (UTC) object creation
863
client_structure: Object describing what attributes a client has
864
and is used for storing the client at exit
865
291
current_checker_command: string; current running checker_command
866
disable_initiator_tag: a GLib event source tag, or None
292
disable_hook: If set, called by disable() as disable_hook(self)
293
disable_initiator_tag: a gobject event source tag, or None
867
294
enabled: bool()
868
295
fingerprint: string (40 or 32 hexadecimal digits); used to
869
uniquely identify an OpenPGP client
870
key_id: string (64 hexadecimal digits); used to uniquely identify
871
a client using raw public keys
296
uniquely identify the client
872
297
host: string; available for use by the checker command
873
298
interval: datetime.timedelta(); How often to start a new checker
874
299
last_approval_request: datetime.datetime(); (UTC) or None
875
300
last_checked_ok: datetime.datetime(); (UTC) or None
876
last_checker_status: integer between 0 and 255 reflecting exit
877
status of last checker. -1 reflects crashed
878
checker, -2 means no checker completed yet.
879
last_checker_signal: The signal which killed the last checker, if
880
last_checker_status is -1
881
last_enabled: datetime.datetime(); (UTC) or None
301
last_enabled: datetime.datetime(); (UTC)
882
302
name: string; from the config file, used in log messages and
883
303
D-Bus identifiers
884
304
secret: bytestring; sent verbatim (over TLS) to client
885
305
timeout: datetime.timedelta(); How long from last_checked_ok
886
306
until this client is disabled
887
extended_timeout: extra long timeout when secret has been sent
307
extended_timeout: extra long timeout when password has been sent
888
308
runtime_expansions: Allowed attributes for runtime expansion.
889
309
expires: datetime.datetime(); time (UTC) when a client will be
890
310
disabled, or None
891
server_settings: The server_settings dict from main()
892
311
"""
893
312
894
313
runtime_expansions = ("approval_delay", "approval_duration",
895
"created", "enabled", "expires", "key_id",
896
"fingerprint", "host", "interval",
897
"last_approval_request", "last_checked_ok",
314
"created", "enabled", "fingerprint",
315
"host", "interval", "last_checked_ok",
898
316
"last_enabled", "name", "timeout")
899
client_defaults = {
900
"timeout": "PT5M",
901
"extended_timeout": "PT15M",
902
"interval": "PT2M",
903
"checker": "fping -q -- %%(host)s",
904
"host": "",
905
"approval_delay": "PT0S",
906
"approval_duration": "PT1S",
907
"approved_by_default": "True",
908
"enabled": "True",
909
}
910
911
@staticmethod
912
def config_parser(config):
913
"""Construct a new dict of client settings of this form:
914
{ client_name: {setting_name: value, ...}, ...}
915
with exceptions for any special settings as defined above.
916
NOTE: Must be a pure function. Must return the same result
917
value given the same arguments.
918
"""
919
settings = {}
920
for client_name in config.sections():
921
section = dict(config.items(client_name))
922
client = settings[client_name] = {}
923
924
client["host"] = section["host"]
925
# Reformat values from string types to Python types
926
client["approved_by_default"] = config.getboolean(
927
client_name, "approved_by_default")
928
client["enabled"] = config.getboolean(client_name,
929
"enabled")
930
931
# Uppercase and remove spaces from key_id and fingerprint
932
# for later comparison purposes with return value from the
933
# key_id() and fingerprint() functions
934
client["key_id"] = (section.get("key_id", "").upper()
935
.replace(" ", ""))
936
client["fingerprint"] = (section["fingerprint"].upper()
937
.replace(" ", ""))
938
if "secret" in section:
939
client["secret"] = codecs.decode(section["secret"]
940
.encode("utf-8"),
941
"base64")
942
elif "secfile" in section:
943
with open(os.path.expanduser(os.path.expandvars
944
(section["secfile"])),
945
"rb") as secfile:
946
client["secret"] = secfile.read()
947
else:
948
raise TypeError("No secret or secfile for section {}"
949
.format(section))
950
client["timeout"] = string_to_delta(section["timeout"])
951
client["extended_timeout"] = string_to_delta(
952
section["extended_timeout"])
953
client["interval"] = string_to_delta(section["interval"])
954
client["approval_delay"] = string_to_delta(
955
section["approval_delay"])
956
client["approval_duration"] = string_to_delta(
957
section["approval_duration"])
958
client["checker_command"] = section["checker"]
959
client["last_approval_request"] = None
960
client["last_checked_ok"] = None
961
client["last_checker_status"] = -2
962
963
return settings
964
965
def __init__(self, settings, name=None, server_settings=None):
317
318
def timeout_milliseconds(self):
319
"Return the 'timeout' attribute in milliseconds"
320
return _timedelta_to_milliseconds(self.timeout)
321
322
def extended_timeout_milliseconds(self):
323
"Return the 'extended_timeout' attribute in milliseconds"
324
return _timedelta_to_milliseconds(self.extended_timeout)
325
326
def interval_milliseconds(self):
327
"Return the 'interval' attribute in milliseconds"
328
return _timedelta_to_milliseconds(self.interval)
329
330
def approval_delay_milliseconds(self):
331
return _timedelta_to_milliseconds(self.approval_delay)
332
333
def __init__(self, name = None, disable_hook=None, config=None):
334
"""Note: the 'checker' key in 'config' sets the
335
'checker_command' attribute and *not* the 'checker'
336
attribute."""
966
337
self.name = name
967
if server_settings is None:
968
server_settings = {}
969
self.server_settings = server_settings
970
# adding all client settings
971
for setting, value in settings.items():
972
setattr(self, setting, value)
973
974
if self.enabled:
975
if not hasattr(self, "last_enabled"):
976
self.last_enabled = datetime.datetime.utcnow()
977
if not hasattr(self, "expires"):
978
self.expires = (datetime.datetime.utcnow()
979
+ self.timeout)
980
else:
981
self.last_enabled = None
982
self.expires = None
983
338
if config is None:
339
config = {}
984
340
logger.debug("Creating client %r", self.name)
985
logger.debug(" Key ID: %s", self.key_id)
341
# Uppercase and remove spaces from fingerprint for later
342
# comparison purposes with return value from the fingerprint()
343
# function
344
self.fingerprint = (config["fingerprint"].upper()
345
.replace(" ", ""))
986
346
logger.debug(" Fingerprint: %s", self.fingerprint)
987
self.created = settings.get("created",
988
datetime.datetime.utcnow())
989
990
# attributes specific for this server instance
347
if "secret" in config:
348
self.secret = config["secret"].decode("base64")
349
elif "secfile" in config:
350
with open(os.path.expanduser(os.path.expandvars
351
(config["secfile"])),
352
"rb") as secfile:
353
self.secret = secfile.read()
354
else:
355
raise TypeError("No secret or secfile for client %s"
356
% self.name)
357
self.host = config.get("host", "")
358
self.created = datetime.datetime.utcnow()
359
self.enabled = False
360
self.last_approval_request = None
361
self.last_enabled = None
362
self.last_checked_ok = None
363
self.timeout = string_to_delta(config["timeout"])
364
self.extended_timeout = string_to_delta(config["extended_timeout"])
365
self.interval = string_to_delta(config["interval"])
366
self.disable_hook = disable_hook
991
367
self.checker = None
992
368
self.checker_initiator_tag = None
993
369
self.disable_initiator_tag = None
370
self.expires = None
994
371
self.checker_callback_tag = None
372
self.checker_command = config["checker"]
995
373
self.current_checker_command = None
996
self.approved = None
374
self.last_connect = None
375
self._approved = None
376
self.approved_by_default = config.get("approved_by_default",
377
True)
997
378
self.approvals_pending = 0
998
self.changedstate = multiprocessing_manager.Condition(
999
multiprocessing_manager.Lock())
1000
self.client_structure = [attr
1001
for attr in self.__dict__.keys()
1002
if not attr.startswith("_")]
1003
self.client_structure.append("client_structure")
1004
1005
for name, t in inspect.getmembers(
1006
type(self), lambda obj: isinstance(obj, property)):
1007
if not name.startswith("_"):
1008
self.client_structure.append(name)
1009
1010
# Send notice to process children that client state has changed
379
self.approval_delay = string_to_delta(
380
config["approval_delay"])
381
self.approval_duration = string_to_delta(
382
config["approval_duration"])
383
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
384
1011
385
def send_changedstate(self):
1012
with self.changedstate:
1013
self.changedstate.notify_all()
1014
386
self.changedstate.acquire()
387
self.changedstate.notify_all()
388
self.changedstate.release()
389
1015
390
def enable(self):
1016
391
"""Start this client's checker and timeout hooks"""
1017
392
if getattr(self, "enabled", False):
1018
393
# Already enabled
1019
394
return
395
self.send_changedstate()
396
# Schedule a new checker to be started an 'interval' from now,
397
# and every interval from then on.
398
self.checker_initiator_tag = (gobject.timeout_add
399
(self.interval_milliseconds(),
400
self.start_checker))
401
# Schedule a disable() when 'timeout' has passed
1020
402
self.expires = datetime.datetime.utcnow() + self.timeout
403
self.disable_initiator_tag = (gobject.timeout_add
404
(self.timeout_milliseconds(),
405
self.disable))
1021
406
self.enabled = True
1022
407
self.last_enabled = datetime.datetime.utcnow()
1023
self.init_checker()
1024
self.send_changedstate()
1025
408
# Also start a new checker *right now*.
409
self.start_checker()
410
1026
411
def disable(self, quiet=True):
1027
412
"""Disable this client."""
1028
413
if not getattr(self, "enabled", False):
1029
414
return False
1030
415
if not quiet:
416
self.send_changedstate()
417
if not quiet:
1031
418
logger.info("Disabling client %s", self.name)
1032
if getattr(self, "disable_initiator_tag", None) is not None:
1033
GLib.source_remove(self.disable_initiator_tag)
419
if getattr(self, "disable_initiator_tag", False):
420
gobject.source_remove(self.disable_initiator_tag)
1034
421
self.disable_initiator_tag = None
1035
422
self.expires = None
1036
if getattr(self, "checker_initiator_tag", None) is not None:
1037
GLib.source_remove(self.checker_initiator_tag)
423
if getattr(self, "checker_initiator_tag", False):
424
gobject.source_remove(self.checker_initiator_tag)
1038
425
self.checker_initiator_tag = None
1039
426
self.stop_checker()
427
if self.disable_hook:
428
self.disable_hook(self)
1040
429
self.enabled = False
1041
if not quiet:
1042
self.send_changedstate()
1043
# Do not run this again if called by a GLib.timeout_add
430
# Do not run this again if called by a gobject.timeout_add
1044
431
return False
1045
432
1046
433
def __del__(self):
434
self.disable_hook = None
1047
435
self.disable()
1048
1049
def init_checker(self):
1050
# Schedule a new checker to be started an 'interval' from now,
1051
# and every interval from then on.
1052
if self.checker_initiator_tag is not None:
1053
GLib.source_remove(self.checker_initiator_tag)
1054
self.checker_initiator_tag = GLib.timeout_add(
1055
random.randrange(int(self.interval.total_seconds() * 1000
1056
+ 1)),
1057
self.start_checker)
1058
# Schedule a disable() when 'timeout' has passed
1059
if self.disable_initiator_tag is not None:
1060
GLib.source_remove(self.disable_initiator_tag)
1061
self.disable_initiator_tag = GLib.timeout_add(
1062
int(self.timeout.total_seconds() * 1000), self.disable)
1063
# Also start a new checker *right now*.
1064
self.start_checker()
1065
1066
def checker_callback(self, source, condition, connection,
1067
command):
436
437
def checker_callback(self, pid, condition, command):
1068
438
"""The checker has completed, so take appropriate actions."""
1069
# Read return code from connection (see call_pipe)
1070
returncode = connection.recv()
1071
connection.close()
1072
if self.checker is not None:
1073
self.checker.join()
1074
439
self.checker_callback_tag = None
1075
440
self.checker = None
1076
1077
if returncode >= 0:
1078
self.last_checker_status = returncode
1079
self.last_checker_signal = None
1080
if self.last_checker_status == 0:
441
if os.WIFEXITED(condition):
442
exitstatus = os.WEXITSTATUS(condition)
443
if exitstatus == 0:
1081
444
logger.info("Checker for %(name)s succeeded",
1082
445
vars(self))
1083
446
self.checked_ok()
1084
447
else:
1085
logger.info("Checker for %(name)s failed", vars(self))
448
logger.info("Checker for %(name)s failed",
449
vars(self))
1086
450
else:
1087
self.last_checker_status = -1
1088
self.last_checker_signal = -returncode
1089
451
logger.warning("Checker for %(name)s crashed?",
1090
452
vars(self))
1091
return False
1092
1093
def checked_ok(self):
1094
"""Assert that the client has been seen, alive and well."""
1095
self.last_checked_ok = datetime.datetime.utcnow()
1096
self.last_checker_status = 0
1097
self.last_checker_signal = None
1098
self.bump_timeout()
1099
1100
def bump_timeout(self, timeout=None):
1101
"""Bump up the timeout for this client."""
453
454
def checked_ok(self, timeout=None):
455
"""Bump up the timeout for this client.
456
457
This should only be called when the client has been seen,
458
alive and well.
459
"""
1102
460
if timeout is None:
1103
461
timeout = self.timeout
1104
if self.disable_initiator_tag is not None:
1105
GLib.source_remove(self.disable_initiator_tag)
1106
self.disable_initiator_tag = None
1107
if getattr(self, "enabled", False):
1108
self.disable_initiator_tag = GLib.timeout_add(
1109
int(timeout.total_seconds() * 1000), self.disable)
1110
self.expires = datetime.datetime.utcnow() + timeout
1111
462
self.last_checked_ok = datetime.datetime.utcnow()
463
gobject.source_remove(self.disable_initiator_tag)
464
self.expires = datetime.datetime.utcnow() + timeout
465
self.disable_initiator_tag = (gobject.timeout_add
466
(_timedelta_to_milliseconds(timeout),
467
self.disable))
468
1112
469
def need_approval(self):
1113
470
self.last_approval_request = datetime.datetime.utcnow()
1114
471
1115
472
def start_checker(self):
1116
473
"""Start a new checker subprocess if one is not running.
1117
474
1118
475
If a checker already exists, leave it running and do
1119
476
nothing."""
1120
477
# The reason for not killing a running checker is that if we
1121
# did that, and if a checker (for some reason) started running
1122
# slowly and taking more than 'interval' time, then the client
1123
# would inevitably timeout, since no checker would get a
1124
# chance to run to completion. If we instead leave running
478
# did that, then if a checker (for some reason) started
479
# running slowly and taking more than 'interval' time, the
480
# client would inevitably timeout, since no checker would get
481
# a chance to run to completion. If we instead leave running
1125
482
# checkers alone, the checker would have to take more time
1126
483
# than 'timeout' for the client to be disabled, which is as it
1127
484
# should be.
1128
1129
if self.checker is not None and not self.checker.is_alive():
1130
logger.warning("Checker was not alive; joining")
1131
self.checker.join()
1132
self.checker = None
485
486
# If a checker exists, make sure it is not a zombie
487
try:
488
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
489
except (AttributeError, OSError) as error:
490
if (isinstance(error, OSError)
491
and error.errno != errno.ECHILD):
492
raise error
493
else:
494
if pid:
495
logger.warning("Checker was a zombie")
496
gobject.source_remove(self.checker_callback_tag)
497
self.checker_callback(pid, status,
498
self.current_checker_command)
1133
499
# Start a new checker if needed
1134
500
if self.checker is None:
1135
# Escape attributes for the shell
1136
escaped_attrs = {
1137
attr: shlex.quote(str(getattr(self, attr)))
1138
for attr in self.runtime_expansions}
1139
501
try:
1140
command = self.checker_command % escaped_attrs
1141
except TypeError as error:
1142
logger.error('Could not format string "%s"',
1143
self.checker_command,
1144
exc_info=error)
1145
return True # Try again later
502
# In case checker_command has exactly one % operator
503
command = self.checker_command % self.host
504
except TypeError:
505
# Escape attributes for the shell
506
escaped_attrs = dict(
507
(attr,
508
re.escape(unicode(str(getattr(self, attr, "")),
509
errors=
510
'replace')))
511
for attr in
512
self.runtime_expansions)
513
514
try:
515
command = self.checker_command % escaped_attrs
516
except TypeError as error:
517
logger.error('Could not format string "%s":'
518
' %s', self.checker_command, error)
519
return True # Try again later
1146
520
self.current_checker_command = command
1147
logger.info("Starting checker %r for %s", command,
1148
self.name)
1149
# We don't need to redirect stdout and stderr, since
1150
# in normal mode, that is already done by daemon(),
1151
# and in debug mode we don't want to. (Stdin is
1152
# always replaced by /dev/null.)
1153
# The exception is when not debugging but nevertheless
1154
# running in the foreground; use the previously
1155
# created wnull.
1156
popen_args = {"close_fds": True,
1157
"shell": True,
1158
"cwd": "/"}
1159
if (not self.server_settings["debug"]
1160
and self.server_settings["foreground"]):
1161
popen_args.update({"stdout": wnull,
1162
"stderr": wnull})
1163
pipe = multiprocessing.Pipe(duplex=False)
1164
self.checker = multiprocessing.Process(
1165
target=call_pipe,
1166
args=(pipe[1], subprocess.call, command),
1167
kwargs=popen_args)
1168
self.checker.start()
1169
self.checker_callback_tag = GLib.io_add_watch(
1170
GLib.IOChannel.unix_new(pipe[0].fileno()),
1171
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1172
self.checker_callback, pipe[0], command)
1173
# Re-run this periodically if run by GLib.timeout_add
521
try:
522
logger.info("Starting checker %r for %s",
523
command, self.name)
524
# We don't need to redirect stdout and stderr, since
525
# in normal mode, that is already done by daemon(),
526
# and in debug mode we don't want to. (Stdin is
527
# always replaced by /dev/null.)
528
self.checker = subprocess.Popen(command,
529
close_fds=True,
530
shell=True, cwd="/")
531
self.checker_callback_tag = (gobject.child_watch_add
532
(self.checker.pid,
533
self.checker_callback,
534
data=command))
535
# The checker may have completed before the gobject
536
# watch was added. Check for this.
537
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
538
if pid:
539
gobject.source_remove(self.checker_callback_tag)
540
self.checker_callback(pid, status, command)
541
except OSError as error:
542
logger.error("Failed to start subprocess: %s",
543
error)
544
# Re-run this periodically if run by gobject.timeout_add
1174
545
return True
1175
546
1176
547
def stop_checker(self):
1177
548
"""Force the checker process, if any, to stop."""
1178
549
if self.checker_callback_tag:
1179
GLib.source_remove(self.checker_callback_tag)
550
gobject.source_remove(self.checker_callback_tag)
1180
551
self.checker_callback_tag = None
1181
552
if getattr(self, "checker", None) is None:
1182
553
return
1183
554
logger.debug("Stopping checker for %(name)s", vars(self))
1184
self.checker.terminate()
555
try:
556
os.kill(self.checker.pid, signal.SIGTERM)
557
#time.sleep(0.5)
558
#if self.checker.poll() is None:
559
# os.kill(self.checker.pid, signal.SIGKILL)
560
except OSError as error:
561
if error.errno != errno.ESRCH: # No such process
562
raise
1185
563
self.checker = None
1186
564
1187
565
1188
def dbus_service_property(dbus_interface,
1189
signature="v",
1190
access="readwrite",
1191
byte_arrays=False):
566
def dbus_service_property(dbus_interface, signature="v",
567
access="readwrite", byte_arrays=False):
1192
568
"""Decorators for marking methods of a DBusObjectWithProperties to
1193
569
become properties on the D-Bus.
1194
570
1195
571
The decorated method will be called with no arguments by "Get"
1196
572
and with one argument by "Set".
1197
573
1198
574
The parameters, where they are supported, are the same as
1199
575
dbus.service.method, except there is only "signature", since the
1200
576
type from Get() and the type sent to Set() is the same.
1203
579
# "Set" method, so we fail early here:
1204
580
if byte_arrays and signature != "ay":
1205
581
raise ValueError("Byte arrays not supported for non-'ay'"
1206
" signature {!r}".format(signature))
1207
582
" signature %r" % signature)
1208
583
def decorator(func):
1209
584
func._dbus_is_property = True
1210
585
func._dbus_interface = dbus_interface
1213
588
func._dbus_name = func.__name__
1214
589
if func._dbus_name.endswith("_dbus_property"):
1215
590
func._dbus_name = func._dbus_name[:-14]
1216
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1217
return func
1218
1219
return decorator
1220
1221
1222
def dbus_interface_annotations(dbus_interface):
1223
"""Decorator for marking functions returning interface annotations
1224
1225
Usage:
1226
1227
@dbus_interface_annotations("org.example.Interface")
1228
def _foo(self): # Function name does not matter
1229
return {"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1231
"false"}
1232
"""
1233
1234
def decorator(func):
1235
func._dbus_is_interface = True
1236
func._dbus_interface = dbus_interface
1237
func._dbus_name = dbus_interface
1238
return func
1239
1240
return decorator
1241
1242
1243
def dbus_annotations(annotations):
1244
"""Decorator to annotate D-Bus methods, signals or properties
1245
Usage:
1246
1247
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1248
"org.freedesktop.DBus.Property."
1249
"EmitsChangedSignal": "false"})
1250
@dbus_service_property("org.example.Interface", signature="b",
1251
access="r")
1252
def Property_dbus_property(self):
1253
return dbus.Boolean(False)
1254
1255
See also the DBusObjectWithAnnotations class.
1256
"""
1257
1258
def decorator(func):
1259
func._dbus_annotations = annotations
1260
return func
1261
591
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
592
return func
1262
593
return decorator
1263
594
1264
595
1265
596
class DBusPropertyException(dbus.exceptions.DBusException):
1266
597
"""A base class for D-Bus property-related exceptions
1267
598
"""
1268
pass
599
def __unicode__(self):
600
return unicode(str(self))
1269
601
1270
602
1271
603
class DBusPropertyAccessException(DBusPropertyException):
1280
612
pass
1281
613
1282
614
1283
class DBusObjectWithAnnotations(dbus.service.Object):
1284
"""A D-Bus object with annotations.
1285
1286
Classes inheriting from this can use the dbus_annotations
1287
decorator to add annotations to methods or signals.
1288
"""
1289
1290
@staticmethod
1291
def _is_dbus_thing(thing):
1292
"""Returns a function testing if an attribute is a D-Bus thing
1293
1294
If called like _is_dbus_thing("method") it returns a function
1295
suitable for use as predicate to inspect.getmembers().
1296
"""
1297
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1298
False)
1299
1300
def _get_all_dbus_things(self, thing):
1301
"""Returns a generator of (name, attribute) pairs
1302
"""
1303
return ((getattr(athing.__get__(self), "_dbus_name", name),
1304
athing.__get__(self))
1305
for cls in self.__class__.__mro__
1306
for name, athing in
1307
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1308
1309
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1310
out_signature="s",
1311
path_keyword='object_path',
1312
connection_keyword='connection')
1313
def Introspect(self, object_path, connection):
1314
"""Overloading of standard D-Bus method.
1315
1316
Inserts annotation tags on methods and signals.
1317
"""
1318
xmlstring = dbus.service.Object.Introspect(self, object_path,
1319
connection)
1320
try:
1321
document = xml.dom.minidom.parseString(xmlstring)
1322
1323
for if_tag in document.getElementsByTagName("interface"):
1324
# Add annotation tags
1325
for typ in ("method", "signal"):
1326
for tag in if_tag.getElementsByTagName(typ):
1327
annots = dict()
1328
for name, prop in (self.
1329
_get_all_dbus_things(typ)):
1330
if (name == tag.getAttribute("name")
1331
and prop._dbus_interface
1332
== if_tag.getAttribute("name")):
1333
annots.update(getattr(
1334
prop, "_dbus_annotations", {}))
1335
for name, value in annots.items():
1336
ann_tag = document.createElement(
1337
"annotation")
1338
ann_tag.setAttribute("name", name)
1339
ann_tag.setAttribute("value", value)
1340
tag.appendChild(ann_tag)
1341
# Add interface annotation tags
1342
for annotation, value in dict(
1343
itertools.chain.from_iterable(
1344
annotations().items()
1345
for name, annotations
1346
in self._get_all_dbus_things("interface")
1347
if name == if_tag.getAttribute("name")
1348
)).items():
1349
ann_tag = document.createElement("annotation")
1350
ann_tag.setAttribute("name", annotation)
1351
ann_tag.setAttribute("value", value)
1352
if_tag.appendChild(ann_tag)
1353
# Fix argument name for the Introspect method itself
1354
if (if_tag.getAttribute("name")
1355
== dbus.INTROSPECTABLE_IFACE):
1356
for cn in if_tag.getElementsByTagName("method"):
1357
if cn.getAttribute("name") == "Introspect":
1358
for arg in cn.getElementsByTagName("arg"):
1359
if (arg.getAttribute("direction")
1360
== "out"):
1361
arg.setAttribute("name",
1362
"xml_data")
1363
xmlstring = document.toxml("utf-8")
1364
document.unlink()
1365
except (AttributeError, xml.dom.DOMException,
1366
xml.parsers.expat.ExpatError) as error:
1367
logger.error("Failed to override Introspection method",
1368
exc_info=error)
1369
return xmlstring
1370
1371
1372
class DBusObjectWithProperties(DBusObjectWithAnnotations):
615
class DBusObjectWithProperties(dbus.service.Object):
1373
616
"""A D-Bus object with properties.
1374
617
1375
618
Classes inheriting from this can use the dbus_service_property
1376
619
decorator to expose methods as D-Bus properties. It exposes the
1377
620
standard Get(), Set(), and GetAll() methods on the D-Bus.
1378
621
"""
1379
622
623
@staticmethod
624
def _is_dbus_property(obj):
625
return getattr(obj, "_dbus_is_property", False)
626
627
def _get_all_dbus_properties(self):
628
"""Returns a generator of (name, attribute) pairs
629
"""
630
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
631
for cls in self.__class__.__mro__
632
for name, prop in inspect.getmembers(cls, self._is_dbus_property))
633
1380
634
def _get_dbus_property(self, interface_name, property_name):
1381
635
"""Returns a bound method if one exists which is a D-Bus
1382
636
property with the specified name and interface.
1383
637
"""
1384
for cls in self.__class__.__mro__:
1385
for name, value in inspect.getmembers(
1386
cls, self._is_dbus_thing("property")):
1387
if (value._dbus_name == property_name
1388
and value._dbus_interface == interface_name):
638
for cls in self.__class__.__mro__:
639
for name, value in inspect.getmembers(cls, self._is_dbus_property):
640
if value._dbus_name == property_name and value._dbus_interface == interface_name:
1389
641
return value.__get__(self)
1390
642
1391
643
# No such property
1392
raise DBusPropertyNotFound("{}:{}.{}".format(
1393
self.dbus_object_path, interface_name, property_name))
1394
1395
@classmethod
1396
def _get_all_interface_names(cls):
1397
"""Get a sequence of all interfaces supported by an object"""
1398
return (name for name in set(getattr(getattr(x, attr),
1399
"_dbus_interface", None)
1400
for x in (inspect.getmro(cls))
1401
for attr in dir(x))
1402
if name is not None)
1403
1404
@dbus.service.method(dbus.PROPERTIES_IFACE,
1405
in_signature="ss",
644
raise DBusPropertyNotFound(self.dbus_object_path + ":"
645
+ interface_name + "."
646
+ property_name)
647
648
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1406
649
out_signature="v")
1407
650
def Get(self, interface_name, property_name):
1408
651
"""Standard D-Bus property Get() method, see D-Bus standard.
1414
657
if not hasattr(value, "variant_level"):
1415
658
return value
1416
659
return type(value)(value, variant_level=value.variant_level+1)
1417
660
1418
661
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1419
662
def Set(self, interface_name, property_name, value):
1420
663
"""Standard D-Bus property Set() method, see D-Bus standard.
1426
669
# The byte_arrays option is not supported yet on
1427
670
# signatures other than "ay".
1428
671
if prop._dbus_signature != "ay":
1429
raise ValueError("Byte arrays not supported for non-"
1430
"'ay' signature {!r}"
1431
.format(prop._dbus_signature))
1432
value = dbus.ByteArray(bytes(value))
672
raise ValueError
673
value = dbus.ByteArray(''.join(unichr(byte)
674
for byte in value))
1433
675
prop(value)
1434
1435
@dbus.service.method(dbus.PROPERTIES_IFACE,
1436
in_signature="s",
676
677
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1437
678
out_signature="a{sv}")
1438
679
def GetAll(self, interface_name):
1439
680
"""Standard D-Bus property GetAll() method, see D-Bus
1440
681
standard.
1441
682
1442
683
Note: Will not include properties with access="write".
1443
684
"""
1444
properties = {}
1445
for name, prop in self._get_all_dbus_things("property"):
685
all = {}
686
for name, prop in self._get_all_dbus_properties():
1446
687
if (interface_name
1447
688
and interface_name != prop._dbus_interface):
1448
689
# Interface non-empty but did not match
1452
693
continue
1453
694
value = prop()
1454
695
if not hasattr(value, "variant_level"):
1455
properties[name] = value
696
all[name] = value
1456
697
continue
1457
properties[name] = type(value)(
1458
value, variant_level=value.variant_level + 1)
1459
return dbus.Dictionary(properties, signature="sv")
1460
1461
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1462
def PropertiesChanged(self, interface_name, changed_properties,
1463
invalidated_properties):
1464
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1465
standard.
1466
"""
1467
pass
1468
698
all[name] = type(value)(value, variant_level=
699
value.variant_level+1)
700
return dbus.Dictionary(all, signature="sv")
701
1469
702
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1470
703
out_signature="s",
1471
704
path_keyword='object_path',
1472
705
connection_keyword='connection')
1473
706
def Introspect(self, object_path, connection):
1474
"""Overloading of standard D-Bus method.
1475
1476
Inserts property tags and interface annotation tags.
707
"""Standard D-Bus method, overloaded to insert property tags.
1477
708
"""
1478
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1479
object_path,
1480
connection)
709
xmlstring = dbus.service.Object.Introspect(self, object_path,
710
connection)
1481
711
try:
1482
712
document = xml.dom.minidom.parseString(xmlstring)
1483
1484
713
def make_tag(document, name, prop):
1485
714
e = document.createElement("property")
1486
715
e.setAttribute("name", name)
1487
716
e.setAttribute("type", prop._dbus_signature)
1488
717
e.setAttribute("access", prop._dbus_access)
1489
718
return e
1490
1491
719
for if_tag in document.getElementsByTagName("interface"):
1492
# Add property tags
1493
720
for tag in (make_tag(document, name, prop)
1494
721
for name, prop
1495
in self._get_all_dbus_things("property")
722
in self._get_all_dbus_properties()
1496
723
if prop._dbus_interface
1497
724
== if_tag.getAttribute("name")):
1498
725
if_tag.appendChild(tag)
1499
# Add annotation tags for properties
1500
for tag in if_tag.getElementsByTagName("property"):
1501
annots = dict()
1502
for name, prop in self._get_all_dbus_things(
1503
"property"):
1504
if (name == tag.getAttribute("name")
1505
and prop._dbus_interface
1506
== if_tag.getAttribute("name")):
1507
annots.update(getattr(
1508
prop, "_dbus_annotations", {}))
1509
for name, value in annots.items():
1510
ann_tag = document.createElement(
1511
"annotation")
1512
ann_tag.setAttribute("name", name)
1513
ann_tag.setAttribute("value", value)
1514
tag.appendChild(ann_tag)
1515
726
# Add the names to the return values for the
1516
727
# "org.freedesktop.DBus.Properties" methods
1517
728
if (if_tag.getAttribute("name")
1532
743
except (AttributeError, xml.dom.DOMException,
1533
744
xml.parsers.expat.ExpatError) as error:
1534
745
logger.error("Failed to override Introspection method",
1535
exc_info=error)
1536
return xmlstring
1537
1538
1539
try:
1540
dbus.OBJECT_MANAGER_IFACE
1541
except AttributeError:
1542
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1543
1544
1545
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1546
"""A D-Bus object with an ObjectManager.
1547
1548
Classes inheriting from this exposes the standard
1549
GetManagedObjects call and the InterfacesAdded and
1550
InterfacesRemoved signals on the standard
1551
"org.freedesktop.DBus.ObjectManager" interface.
1552
1553
Note: No signals are sent automatically; they must be sent
1554
manually.
1555
"""
1556
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1557
out_signature="a{oa{sa{sv}}}")
1558
def GetManagedObjects(self):
1559
"""This function must be overridden"""
1560
raise NotImplementedError()
1561
1562
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1563
signature="oa{sa{sv}}")
1564
def InterfacesAdded(self, object_path, interfaces_and_properties):
1565
pass
1566
1567
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1568
def InterfacesRemoved(self, object_path, interfaces):
1569
pass
1570
1571
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1572
out_signature="s",
1573
path_keyword='object_path',
1574
connection_keyword='connection')
1575
def Introspect(self, object_path, connection):
1576
"""Overloading of standard D-Bus method.
1577
1578
Override return argument name of GetManagedObjects to be
1579
"objpath_interfaces_and_properties"
1580
"""
1581
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1582
object_path,
1583
connection)
1584
try:
1585
document = xml.dom.minidom.parseString(xmlstring)
1586
1587
for if_tag in document.getElementsByTagName("interface"):
1588
# Fix argument name for the GetManagedObjects method
1589
if (if_tag.getAttribute("name")
1590
== dbus.OBJECT_MANAGER_IFACE):
1591
for cn in if_tag.getElementsByTagName("method"):
1592
if (cn.getAttribute("name")
1593
== "GetManagedObjects"):
1594
for arg in cn.getElementsByTagName("arg"):
1595
if (arg.getAttribute("direction")
1596
== "out"):
1597
arg.setAttribute(
1598
"name",
1599
"objpath_interfaces"
1600
"_and_properties")
1601
xmlstring = document.toxml("utf-8")
1602
document.unlink()
1603
except (AttributeError, xml.dom.DOMException,
1604
xml.parsers.expat.ExpatError) as error:
1605
logger.error("Failed to override Introspection method",
1606
exc_info=error)
1607
return xmlstring
1608
1609
1610
def datetime_to_dbus(dt, variant_level=0):
746
error)
747
return xmlstring
748
749
750
def datetime_to_dbus (dt, variant_level=0):
1611
751
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1612
752
if dt is None:
1613
return dbus.String("", variant_level=variant_level)
1614
return dbus.String(dt.isoformat(), variant_level=variant_level)
1615
1616
1617
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1618
"""A class decorator; applied to a subclass of
1619
dbus.service.Object, it will add alternate D-Bus attributes with
1620
interface names according to the "alt_interface_names" mapping.
1621
Usage:
1622
1623
@alternate_dbus_interfaces({"org.example.Interface":
1624
"net.example.AlternateInterface"})
1625
class SampleDBusObject(dbus.service.Object):
1626
@dbus.service.method("org.example.Interface")
1627
def SampleDBusMethod():
1628
pass
1629
1630
The above "SampleDBusMethod" on "SampleDBusObject" will be
1631
reachable via two interfaces: "org.example.Interface" and
1632
"net.example.AlternateInterface", the latter of which will have
1633
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1634
"true", unless "deprecate" is passed with a False value.
1635
1636
This works for methods and signals, and also for D-Bus properties
1637
(from DBusObjectWithProperties) and interfaces (from the
1638
dbus_interface_annotations decorator).
753
return dbus.String("", variant_level = variant_level)
754
return dbus.String(dt.isoformat(),
755
variant_level=variant_level)
756
757
class AlternateDBusNamesMetaclass(DBusObjectWithProperties.__metaclass__):
758
"""Applied to an empty subclass of a D-Bus object, this metaclass
759
will add additional D-Bus attributes matching a certain pattern.
1639
760
"""
1640
1641
def wrapper(cls):
1642
for orig_interface_name, alt_interface_name in (
1643
alt_interface_names.items()):
1644
attr = {}
1645
interface_names = set()
1646
# Go though all attributes of the class
1647
for attrname, attribute in inspect.getmembers(cls):
761
def __new__(mcs, name, bases, attr):
762
# Go through all the base classes which could have D-Bus
763
# methods, signals, or properties in them
764
for base in (b for b in bases
765
if issubclass(b, dbus.service.Object)):
766
# Go though all attributes of the base class
767
for attrname, attribute in inspect.getmembers(base):
1648
768
# Ignore non-D-Bus attributes, and D-Bus attributes
1649
769
# with the wrong interface name
1650
770
if (not hasattr(attribute, "_dbus_interface")
1651
or not attribute._dbus_interface.startswith(
1652
orig_interface_name)):
771
or not attribute._dbus_interface
772
.startswith("se.recompile.Mandos")):
1653
773
continue
1654
774
# Create an alternate D-Bus interface name based on
1655
775
# the current name
1656
alt_interface = attribute._dbus_interface.replace(
1657
orig_interface_name, alt_interface_name)
1658
interface_names.add(alt_interface)
776
alt_interface = (attribute._dbus_interface
777
.replace("se.recompile.Mandos",
778
"se.bsnet.fukt.Mandos"))
1659
779
# Is this a D-Bus signal?
1660
780
if getattr(attribute, "_dbus_is_signal", False):
1661
# Extract the original non-method undecorated
1662
# function by black magic
1663
if sys.version_info.major == 2:
1664
nonmethod_func = (dict(
781
# Extract the original non-method function by
782
# black magic
783
nonmethod_func = (dict(
1665
784
zip(attribute.func_code.co_freevars,
1666
attribute.__closure__))
1667
["func"].cell_contents)
1668
else:
1669
nonmethod_func = (dict(
1670
zip(attribute.__code__.co_freevars,
1671
attribute.__closure__))
1672
["func"].cell_contents)
785
attribute.__closure__))["func"]
786
.cell_contents)
1673
787
# Create a new, but exactly alike, function
1674
788
# object, and decorate it to be a new D-Bus signal
1675
789
# with the alternate D-Bus interface name
1676
new_function = copy_function(nonmethod_func)
1677
new_function = (dbus.service.signal(
1678
alt_interface,
1679
attribute._dbus_signature)(new_function))
1680
# Copy annotations, if any
1681
try:
1682
new_function._dbus_annotations = dict(
1683
attribute._dbus_annotations)
1684
except AttributeError:
1685
pass
1686
790
new_function = (dbus.service.signal
791
(alt_interface,
792
attribute._dbus_signature)
793
(types.FunctionType(
794
nonmethod_func.func_code,
795
nonmethod_func.func_globals,
796
nonmethod_func.func_name,
797
nonmethod_func.func_defaults,
798
nonmethod_func.func_closure)))
1687
799
# Define a creator of a function to call both the
1688
# original and alternate functions, so both the
1689
# original and alternate signals gets sent when
1690
# the function is called
800
# old and new functions, so both the old and new
801
# signals gets sent when the function is called
1691
802
def fixscope(func1, func2):
1692
803
"""This function is a scope container to pass
1693
804
func1 and func2 to the "call_both" function
1694
805
outside of its arguments"""
1695
1696
@functools.wraps(func2)
1697
806
def call_both(*args, **kwargs):
1698
807
"""This function will emit two D-Bus
1699
808
signals by calling func1 and func2"""
1700
809
func1(*args, **kwargs)
1701
810
func2(*args, **kwargs)
1702
# Make wrapper function look like a D-Bus
1703
# signal
1704
for name, attr in inspect.getmembers(func2):
1705
if name.startswith("_dbus_"):
1706
setattr(call_both, name, attr)
1707
1708
811
return call_both
1709
812
# Create the "call_both" function and add it to
1710
813
# the class
1711
attr[attrname] = fixscope(attribute, new_function)
814
attr[attrname] = fixscope(attribute,
815
new_function)
1712
816
# Is this a D-Bus method?
1713
817
elif getattr(attribute, "_dbus_is_method", False):
1714
818
# Create a new, but exactly alike, function
1715
819
# object. Decorate it to be a new D-Bus method
1716
820
# with the alternate D-Bus interface name. Add it
1717
821
# to the class.
1718
attr[attrname] = (
1719
dbus.service.method(
1720
alt_interface,
1721
attribute._dbus_in_signature,
1722
attribute._dbus_out_signature)
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
822
attr[attrname] = (dbus.service.method
823
(alt_interface,
824
attribute._dbus_in_signature,
825
attribute._dbus_out_signature)
826
(types.FunctionType
827
(attribute.func_code,
828
attribute.func_globals,
829
attribute.func_name,
830
attribute.func_defaults,
831
attribute.func_closure)))
1730
832
# Is this a D-Bus property?
1731
833
elif getattr(attribute, "_dbus_is_property", False):
1732
834
# Create a new, but exactly alike, function
1733
835
# object, and decorate it to be a new D-Bus
1734
836
# property with the alternate D-Bus interface
1735
837
# name. Add it to the class.
1736
attr[attrname] = (dbus_service_property(
1737
alt_interface, attribute._dbus_signature,
1738
attribute._dbus_access,
1739
attribute._dbus_get_args_options
1740
["byte_arrays"])
1741
(copy_function(attribute)))
1742
# Copy annotations, if any
1743
try:
1744
attr[attrname]._dbus_annotations = dict(
1745
attribute._dbus_annotations)
1746
except AttributeError:
1747
pass
1748
# Is this a D-Bus interface?
1749
elif getattr(attribute, "_dbus_is_interface", False):
1750
# Create a new, but exactly alike, function
1751
# object. Decorate it to be a new D-Bus interface
1752
# with the alternate D-Bus interface name. Add it
1753
# to the class.
1754
attr[attrname] = (
1755
dbus_interface_annotations(alt_interface)
1756
(copy_function(attribute)))
1757
if deprecate:
1758
# Deprecate all alternate interfaces
1759
iname = "_AlternateDBusNames_interface_annotation{}"
1760
for interface_name in interface_names:
1761
1762
@dbus_interface_annotations(interface_name)
1763
def func(self):
1764
return {"org.freedesktop.DBus.Deprecated":
1765
"true"}
1766
# Find an unused name
1767
for aname in (iname.format(i)
1768
for i in itertools.count()):
1769
if aname not in attr:
1770
attr[aname] = func
1771
break
1772
if interface_names:
1773
# Replace the class with a new subclass of it with
1774
# methods, signals, etc. as created above.
1775
if sys.version_info.major == 2:
1776
cls = type(b"{}Alternate".format(cls.__name__),
1777
(cls, ), attr)
1778
else:
1779
cls = type("{}Alternate".format(cls.__name__),
1780
(cls, ), attr)
1781
return cls
1782
1783
return wrapper
1784
1785
1786
@alternate_dbus_interfaces({"se.recompile.Mandos":
1787
"se.bsnet.fukt.Mandos"})
838
attr[attrname] = (dbus_service_property
839
(alt_interface,
840
attribute._dbus_signature,
841
attribute._dbus_access,
842
attribute
843
._dbus_get_args_options
844
["byte_arrays"])
845
(types.FunctionType
846
(attribute.func_code,
847
attribute.func_globals,
848
attribute.func_name,
849
attribute.func_defaults,
850
attribute.func_closure)))
851
return type.__new__(mcs, name, bases, attr)
852
1788
853
class ClientDBus(Client, DBusObjectWithProperties):
1789
854
"""A Client class using D-Bus
1790
855
1791
856
Attributes:
1792
857
dbus_object_path: dbus.ObjectPath
1793
858
bus: dbus.SystemBus()
1794
859
"""
1795
860
1796
861
runtime_expansions = (Client.runtime_expansions
1797
+ ("dbus_object_path", ))
1798
1799
_interface = "se.recompile.Mandos.Client"
1800
862
+ ("dbus_object_path",))
863
1801
864
# dbus.service.Object doesn't use super(), so we can't either.
1802
1803
def __init__(self, bus=None, *args, **kwargs):
865
866
def __init__(self, bus = None, *args, **kwargs):
867
self._approvals_pending = 0
1804
868
self.bus = bus
1805
869
Client.__init__(self, *args, **kwargs)
1806
870
# Only now, when this client is initialized, can it show up on
1807
871
# the D-Bus
1808
client_object_name = str(self.name).translate(
872
client_object_name = unicode(self.name).translate(
1809
873
{ord("."): ord("_"),
1810
874
ord("-"): ord("_")})
1811
self.dbus_object_path = dbus.ObjectPath(
1812
"/clients/" + client_object_name)
875
self.dbus_object_path = (dbus.ObjectPath
876
("/clients/" + client_object_name))
1813
877
DBusObjectWithProperties.__init__(self, self.bus,
1814
878
self.dbus_object_path)
1815
1816
def notifychangeproperty(transform_func, dbus_name,
1817
type_func=lambda x: x,
1818
variant_level=1,
1819
invalidate_only=False,
1820
_interface=_interface):
879
880
def notifychangeproperty(transform_func,
881
dbus_name, type_func=lambda x: x,
882
variant_level=1):
1821
883
""" Modify a variable so that it's a property which announces
1822
884
its changes to DBus.
1823
885
1824
transform_fun: Function that takes a value and a variant_level
1825
and transforms it to a D-Bus type.
886
transform_fun: Function that takes a value and transforms it
887
to a D-Bus type.
1826
888
dbus_name: D-Bus name of the variable
1827
889
type_func: Function that transform the value before sending it
1828
890
to the D-Bus. Default: no transform
1829
891
variant_level: D-Bus variant level. Default: 1
1830
892
"""
1831
attrname = "_{}".format(dbus_name)
1832
893
real_value = [None,]
1833
894
def setter(self, value):
895
old_value = real_value[0]
896
real_value[0] = value
1834
897
if hasattr(self, "dbus_object_path"):
1835
if (not hasattr(self, attrname) or
1836
type_func(getattr(self, attrname, None))
1837
!= type_func(value)):
1838
if invalidate_only:
1839
self.PropertiesChanged(
1840
_interface, dbus.Dictionary(),
1841
dbus.Array((dbus_name, )))
1842
else:
1843
dbus_value = transform_func(
1844
type_func(value),
1845
variant_level=variant_level)
1846
self.PropertyChanged(dbus.String(dbus_name),
1847
dbus_value)
1848
self.PropertiesChanged(
1849
_interface,
1850
dbus.Dictionary({dbus.String(dbus_name):
1851
dbus_value}),
1852
dbus.Array())
1853
setattr(self, attrname, value)
1854
1855
return property(lambda self: getattr(self, attrname), setter)
1856
898
if type_func(old_value) != type_func(real_value[0]):
899
dbus_value = transform_func(type_func(real_value[0]),
900
variant_level)
901
self.PropertyChanged(dbus.String(dbus_name),
902
dbus_value)
903
904
return property(lambda self: real_value[0], setter)
905
906
1857
907
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1858
908
approvals_pending = notifychangeproperty(dbus.Boolean,
1859
909
"ApprovalPending",
1860
type_func=bool)
910
type_func = bool)
1861
911
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1862
912
last_enabled = notifychangeproperty(datetime_to_dbus,
1863
913
"LastEnabled")
1864
checker = notifychangeproperty(
1865
dbus.Boolean, "CheckerRunning",
1866
type_func=lambda checker: checker is not None)
914
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
915
type_func = lambda checker: checker is not None)
1867
916
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1868
917
"LastCheckedOK")
1869
last_checker_status = notifychangeproperty(dbus.Int16,
1870
"LastCheckerStatus")
1871
last_approval_request = notifychangeproperty(
1872
datetime_to_dbus, "LastApprovalRequest")
918
last_approval_request = notifychangeproperty(datetime_to_dbus,
919
"LastApprovalRequest")
1873
920
approved_by_default = notifychangeproperty(dbus.Boolean,
1874
921
"ApprovedByDefault")
1875
approval_delay = notifychangeproperty(
1876
dbus.UInt64, "ApprovalDelay",
1877
type_func=lambda td: td.total_seconds() * 1000)
1878
approval_duration = notifychangeproperty(
1879
dbus.UInt64, "ApprovalDuration",
1880
type_func=lambda td: td.total_seconds() * 1000)
922
approval_delay = notifychangeproperty(dbus.UInt16, "ApprovalDelay",
923
type_func = _timedelta_to_milliseconds)
924
approval_duration = notifychangeproperty(dbus.UInt16, "ApprovalDuration",
925
type_func = _timedelta_to_milliseconds)
1881
926
host = notifychangeproperty(dbus.String, "Host")
1882
timeout = notifychangeproperty(
1883
dbus.UInt64, "Timeout",
1884
type_func=lambda td: td.total_seconds() * 1000)
1885
extended_timeout = notifychangeproperty(
1886
dbus.UInt64, "ExtendedTimeout",
1887
type_func=lambda td: td.total_seconds() * 1000)
1888
interval = notifychangeproperty(
1889
dbus.UInt64, "Interval",
1890
type_func=lambda td: td.total_seconds() * 1000)
927
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
928
type_func = _timedelta_to_milliseconds)
929
extended_timeout = notifychangeproperty(dbus.UInt16, "ExtendedTimeout",
930
type_func = _timedelta_to_milliseconds)
931
interval = notifychangeproperty(dbus.UInt16, "Interval",
932
type_func = _timedelta_to_milliseconds)
1891
933
checker_command = notifychangeproperty(dbus.String, "Checker")
1892
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1893
invalidate_only=True)
1894
934
1895
935
del notifychangeproperty
1896
936
1897
937
def __del__(self, *args, **kwargs):
1898
938
try:
1899
939
self.remove_from_connection()
1902
942
if hasattr(DBusObjectWithProperties, "__del__"):
1903
943
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1904
944
Client.__del__(self, *args, **kwargs)
1905
1906
def checker_callback(self, source, condition,
1907
connection, command, *args, **kwargs):
1908
ret = Client.checker_callback(self, source, condition,
1909
connection, command, *args,
1910
**kwargs)
1911
exitstatus = self.last_checker_status
1912
if exitstatus >= 0:
945
946
def checker_callback(self, pid, condition, command,
947
*args, **kwargs):
948
self.checker_callback_tag = None
949
self.checker = None
950
if os.WIFEXITED(condition):
951
exitstatus = os.WEXITSTATUS(condition)
1913
952
# Emit D-Bus signal
1914
953
self.CheckerCompleted(dbus.Int16(exitstatus),
1915
# This is specific to GNU libC
1916
dbus.Int64(exitstatus << 8),
954
dbus.Int64(condition),
1917
955
dbus.String(command))
1918
956
else:
1919
957
# Emit D-Bus signal
1920
958
self.CheckerCompleted(dbus.Int16(-1),
1921
dbus.Int64(
1922
# This is specific to GNU libC
1923
(exitstatus << 8)
1924
| self.last_checker_signal),
959
dbus.Int64(condition),
1925
960
dbus.String(command))
1926
return ret
1927
961
962
return Client.checker_callback(self, pid, condition, command,
963
*args, **kwargs)
964
1928
965
def start_checker(self, *args, **kwargs):
1929
old_checker_pid = getattr(self.checker, "pid", None)
966
old_checker = self.checker
967
if self.checker is not None:
968
old_checker_pid = self.checker.pid
969
else:
970
old_checker_pid = None
1930
971
r = Client.start_checker(self, *args, **kwargs)
1931
972
# Only if new checker process was started
1932
973
if (self.checker is not None
1934
975
# Emit D-Bus signal
1935
976
self.CheckerStarted(self.current_checker_command)
1936
977
return r
1937
978
1938
979
def _reset_approved(self):
1939
self.approved = None
980
self._approved = None
1940
981
return False
1941
982
1942
983
def approve(self, value=True):
1943
self.approved = value
1944
GLib.timeout_add(int(self.approval_duration.total_seconds()
1945
* 1000), self._reset_approved)
1946
984
self.send_changedstate()
1947
1948
# D-Bus methods, signals & properties
1949
1950
# Interfaces
1951
1952
# Signals
1953
985
self._approved = value
986
gobject.timeout_add(_timedelta_to_milliseconds
987
(self.approval_duration),
988
self._reset_approved)
989
990
991
## D-Bus methods, signals & properties
992
_interface = "se.recompile.Mandos.Client"
993
994
## Signals
995
1954
996
# CheckerCompleted - signal
1955
997
@dbus.service.signal(_interface, signature="nxs")
1956
998
def CheckerCompleted(self, exitcode, waitstatus, command):
1957
999
"D-Bus signal"
1958
1000
pass
1959
1001
1960
1002
# CheckerStarted - signal
1961
1003
@dbus.service.signal(_interface, signature="s")
1962
1004
def CheckerStarted(self, command):
1963
1005
"D-Bus signal"
1964
1006
pass
1965
1007
1966
1008
# PropertyChanged - signal
1967
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1968
1009
@dbus.service.signal(_interface, signature="sv")
1969
1010
def PropertyChanged(self, property, value):
1970
1011
"D-Bus signal"
1971
1012
pass
1972
1013
1973
1014
# GotSecret - signal
1974
1015
@dbus.service.signal(_interface)
1975
1016
def GotSecret(self):
1978
1019
server to mandos-client
1979
1020
"""
1980
1021
pass
1981
1022
1982
1023
# Rejected - signal
1983
1024
@dbus.service.signal(_interface, signature="s")
1984
1025
def Rejected(self, reason):
1985
1026
"D-Bus signal"
1986
1027
pass
1987
1028
1988
1029
# NeedApproval - signal
1989
1030
@dbus.service.signal(_interface, signature="tb")
1990
1031
def NeedApproval(self, timeout, default):
1991
1032
"D-Bus signal"
1992
1033
return self.need_approval()
1993
1994
# Methods
1995
1034
1035
## Methods
1036
1996
1037
# Approve - method
1997
1038
@dbus.service.method(_interface, in_signature="b")
1998
1039
def Approve(self, value):
1999
1040
self.approve(value)
2000
1041
2001
1042
# CheckedOK - method
2002
1043
@dbus.service.method(_interface)
2003
1044
def CheckedOK(self):
2004
1045
self.checked_ok()
2005
1046
2006
1047
# Enable - method
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2008
1048
@dbus.service.method(_interface)
2009
1049
def Enable(self):
2010
1050
"D-Bus method"
2011
1051
self.enable()
2012
1052
2013
1053
# StartChecker - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2015
1054
@dbus.service.method(_interface)
2016
1055
def StartChecker(self):
2017
1056
"D-Bus method"
2018
1057
self.start_checker()
2019
1058
2020
1059
# Disable - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2022
1060
@dbus.service.method(_interface)
2023
1061
def Disable(self):
2024
1062
"D-Bus method"
2025
1063
self.disable()
2026
1064
2027
1065
# StopChecker - method
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2029
1066
@dbus.service.method(_interface)
2030
1067
def StopChecker(self):
2031
1068
self.stop_checker()
2032
2033
# Properties
2034
1069
1070
## Properties
1071
2035
1072
# ApprovalPending - property
2036
1073
@dbus_service_property(_interface, signature="b", access="read")
2037
1074
def ApprovalPending_dbus_property(self):
2038
1075
return dbus.Boolean(bool(self.approvals_pending))
2039
1076
2040
1077
# ApprovedByDefault - property
2041
@dbus_service_property(_interface,
2042
signature="b",
1078
@dbus_service_property(_interface, signature="b",
2043
1079
access="readwrite")
2044
1080
def ApprovedByDefault_dbus_property(self, value=None):
2045
1081
if value is None: # get
2046
1082
return dbus.Boolean(self.approved_by_default)
2047
1083
self.approved_by_default = bool(value)
2048
1084
2049
1085
# ApprovalDelay - property
2050
@dbus_service_property(_interface,
2051
signature="t",
1086
@dbus_service_property(_interface, signature="t",
2052
1087
access="readwrite")
2053
1088
def ApprovalDelay_dbus_property(self, value=None):
2054
1089
if value is None: # get
2055
return dbus.UInt64(self.approval_delay.total_seconds()
2056
* 1000)
1090
return dbus.UInt64(self.approval_delay_milliseconds())
2057
1091
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2058
1092
2059
1093
# ApprovalDuration - property
2060
@dbus_service_property(_interface,
2061
signature="t",
1094
@dbus_service_property(_interface, signature="t",
2062
1095
access="readwrite")
2063
1096
def ApprovalDuration_dbus_property(self, value=None):
2064
1097
if value is None: # get
2065
return dbus.UInt64(self.approval_duration.total_seconds()
2066
* 1000)
1098
return dbus.UInt64(_timedelta_to_milliseconds(
1099
self.approval_duration))
2067
1100
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2068
1101
2069
1102
# Name - property
2070
@dbus_annotations(
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2072
1103
@dbus_service_property(_interface, signature="s", access="read")
2073
1104
def Name_dbus_property(self):
2074
1105
return dbus.String(self.name)
2075
2076
# KeyID - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
@dbus_service_property(_interface, signature="s", access="read")
2080
def KeyID_dbus_property(self):
2081
return dbus.String(self.key_id)
2082
1106
2083
1107
# Fingerprint - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
1108
@dbus_service_property(_interface, signature="s", access="read")
2087
1109
def Fingerprint_dbus_property(self):
2088
1110
return dbus.String(self.fingerprint)
2089
1111
2090
1112
# Host - property
2091
@dbus_service_property(_interface,
2092
signature="s",
1113
@dbus_service_property(_interface, signature="s",
2093
1114
access="readwrite")
2094
1115
def Host_dbus_property(self, value=None):
2095
1116
if value is None: # get
2096
1117
return dbus.String(self.host)
2097
self.host = str(value)
2098
1118
self.host = value
1119
2099
1120
# Created - property
2100
@dbus_annotations(
2101
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2102
1121
@dbus_service_property(_interface, signature="s", access="read")
2103
1122
def Created_dbus_property(self):
2104
return datetime_to_dbus(self.created)
2105
1123
return dbus.String(datetime_to_dbus(self.created))
1124
2106
1125
# LastEnabled - property
2107
1126
@dbus_service_property(_interface, signature="s", access="read")
2108
1127
def LastEnabled_dbus_property(self):
2109
1128
return datetime_to_dbus(self.last_enabled)
2110
1129
2111
1130
# Enabled - property
2112
@dbus_service_property(_interface,
2113
signature="b",
1131
@dbus_service_property(_interface, signature="b",
2114
1132
access="readwrite")
2115
1133
def Enabled_dbus_property(self, value=None):
2116
1134
if value is None: # get
2119
1137
self.enable()
2120
1138
else:
2121
1139
self.disable()
2122
1140
2123
1141
# LastCheckedOK - property
2124
@dbus_service_property(_interface,
2125
signature="s",
1142
@dbus_service_property(_interface, signature="s",
2126
1143
access="readwrite")
2127
1144
def LastCheckedOK_dbus_property(self, value=None):
2128
1145
if value is not None:
2129
1146
self.checked_ok()
2130
1147
return
2131
1148
return datetime_to_dbus(self.last_checked_ok)
2132
2133
# LastCheckerStatus - property
2134
@dbus_service_property(_interface, signature="n", access="read")
2135
def LastCheckerStatus_dbus_property(self):
2136
return dbus.Int16(self.last_checker_status)
2137
1149
2138
1150
# Expires - property
2139
1151
@dbus_service_property(_interface, signature="s", access="read")
2140
1152
def Expires_dbus_property(self):
2141
1153
return datetime_to_dbus(self.expires)
2142
1154
2143
1155
# LastApprovalRequest - property
2144
1156
@dbus_service_property(_interface, signature="s", access="read")
2145
1157
def LastApprovalRequest_dbus_property(self):
2146
1158
return datetime_to_dbus(self.last_approval_request)
2147
1159
2148
1160
# Timeout - property
2149
@dbus_service_property(_interface,
2150
signature="t",
1161
@dbus_service_property(_interface, signature="t",
2151
1162
access="readwrite")
2152
1163
def Timeout_dbus_property(self, value=None):
2153
1164
if value is None: # get
2154
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2155
old_timeout = self.timeout
1165
return dbus.UInt64(self.timeout_milliseconds())
2156
1166
self.timeout = datetime.timedelta(0, 0, 0, value)
2157
# Reschedule disabling
2158
if self.enabled:
2159
now = datetime.datetime.utcnow()
2160
self.expires += self.timeout - old_timeout
2161
if self.expires <= now:
2162
# The timeout has passed
2163
self.disable()
2164
else:
2165
if (getattr(self, "disable_initiator_tag", None)
2166
is None):
2167
return
2168
GLib.source_remove(self.disable_initiator_tag)
2169
self.disable_initiator_tag = GLib.timeout_add(
2170
int((self.expires - now).total_seconds() * 1000),
2171
self.disable)
2172
1167
if getattr(self, "disable_initiator_tag", None) is None:
1168
return
1169
# Reschedule timeout
1170
gobject.source_remove(self.disable_initiator_tag)
1171
self.disable_initiator_tag = None
1172
self.expires = None
1173
time_to_die = (self.
1174
_timedelta_to_milliseconds((self
1175
.last_checked_ok
1176
+ self.timeout)
1177
- datetime.datetime
1178
.utcnow()))
1179
if time_to_die <= 0:
1180
# The timeout has passed
1181
self.disable()
1182
else:
1183
self.expires = (datetime.datetime.utcnow()
1184
+ datetime.timedelta(milliseconds = time_to_die))
1185
self.disable_initiator_tag = (gobject.timeout_add
1186
(time_to_die, self.disable))
1187
2173
1188
# ExtendedTimeout - property
2174
@dbus_service_property(_interface,
2175
signature="t",
1189
@dbus_service_property(_interface, signature="t",
2176
1190
access="readwrite")
2177
1191
def ExtendedTimeout_dbus_property(self, value=None):
2178
1192
if value is None: # get
2179
return dbus.UInt64(self.extended_timeout.total_seconds()
2180
* 1000)
1193
return dbus.UInt64(self.extended_timeout_milliseconds())
2181
1194
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2182
1195
2183
1196
# Interval - property
2184
@dbus_service_property(_interface,
2185
signature="t",
1197
@dbus_service_property(_interface, signature="t",
2186
1198
access="readwrite")
2187
1199
def Interval_dbus_property(self, value=None):
2188
1200
if value is None: # get
2189
return dbus.UInt64(self.interval.total_seconds() * 1000)
1201
return dbus.UInt64(self.interval_milliseconds())
2190
1202
self.interval = datetime.timedelta(0, 0, 0, value)
2191
1203
if getattr(self, "checker_initiator_tag", None) is None:
2192
1204
return
2193
if self.enabled:
2194
# Reschedule checker run
2195
GLib.source_remove(self.checker_initiator_tag)
2196
self.checker_initiator_tag = GLib.timeout_add(
2197
value, self.start_checker)
2198
self.start_checker() # Start one now, too
2199
1205
# Reschedule checker run
1206
gobject.source_remove(self.checker_initiator_tag)
1207
self.checker_initiator_tag = (gobject.timeout_add
1208
(value, self.start_checker))
1209
self.start_checker() # Start one now, too
1210
2200
1211
# Checker - property
2201
@dbus_service_property(_interface,
2202
signature="s",
1212
@dbus_service_property(_interface, signature="s",
2203
1213
access="readwrite")
2204
1214
def Checker_dbus_property(self, value=None):
2205
1215
if value is None: # get
2206
1216
return dbus.String(self.checker_command)
2207
self.checker_command = str(value)
2208
1217
self.checker_command = value
1218
2209
1219
# CheckerRunning - property
2210
@dbus_service_property(_interface,
2211
signature="b",
1220
@dbus_service_property(_interface, signature="b",
2212
1221
access="readwrite")
2213
1222
def CheckerRunning_dbus_property(self, value=None):
2214
1223
if value is None: # get
2217
1226
self.start_checker()
2218
1227
else:
2219
1228
self.stop_checker()
2220
1229
2221
1230
# ObjectPath - property
2222
@dbus_annotations(
2223
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2224
"org.freedesktop.DBus.Deprecated": "true"})
2225
1231
@dbus_service_property(_interface, signature="o", access="read")
2226
1232
def ObjectPath_dbus_property(self):
2227
return self.dbus_object_path # is already a dbus.ObjectPath
2228
1233
return self.dbus_object_path # is already a dbus.ObjectPath
1234
2229
1235
# Secret = property
2230
@dbus_annotations(
2231
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2232
"invalidates"})
2233
@dbus_service_property(_interface,
2234
signature="ay",
2235
access="write",
2236
byte_arrays=True)
1236
@dbus_service_property(_interface, signature="ay",
1237
access="write", byte_arrays=True)
2237
1238
def Secret_dbus_property(self, value):
2238
self.secret = bytes(value)
2239
1239
self.secret = str(value)
1240
2240
1241
del _interface
2241
1242
2242
1243
2243
class ProxyClient:
2244
def __init__(self, child_pipe, key_id, fpr, address):
1244
class ProxyClient(object):
1245
def __init__(self, child_pipe, fpr, address):
2245
1246
self._pipe = child_pipe
2246
self._pipe.send(('init', key_id, fpr, address))
1247
self._pipe.send(('init', fpr, address))
2247
1248
if not self._pipe.recv():
2248
raise KeyError(key_id or fpr)
2249
1249
raise KeyError()
1250
2250
1251
def __getattribute__(self, name):
2251
if name == '_pipe':
1252
if(name == '_pipe'):
2252
1253
return super(ProxyClient, self).__getattribute__(name)
2253
1254
self._pipe.send(('getattr', name))
2254
1255
data = self._pipe.recv()
2255
1256
if data[0] == 'data':
2256
1257
return data[1]
2257
1258
if data[0] == 'function':
2258
2259
1259
def func(*args, **kwargs):
2260
1260
self._pipe.send(('funcall', name, args, kwargs))
2261
1261
return self._pipe.recv()[1]
2262
2263
1262
return func
2264
1263
2265
1264
def __setattr__(self, name, value):
2266
if name == '_pipe':
1265
if(name == '_pipe'):
2267
1266
return super(ProxyClient, self).__setattr__(name, value)
2268
1267
self._pipe.send(('setattr', name, value))
2269
1268
1269
class ClientDBusTransitional(ClientDBus):
1270
__metaclass__ = AlternateDBusNamesMetaclass
2270
1271
2271
1272
class ClientHandler(socketserver.BaseRequestHandler, object):
2272
1273
"""A class to handle client connections.
2273
1274
2274
1275
Instantiated once for each connection to handle it.
2275
1276
Note: This will run in its own forked process."""
2276
1277
2277
1278
def handle(self):
2278
1279
with contextlib.closing(self.server.child_pipe) as child_pipe:
2279
1280
logger.info("TCP connection from: %s",
2280
str(self.client_address))
1281
unicode(self.client_address))
2281
1282
logger.debug("Pipe FD: %d",
2282
1283
self.server.child_pipe.fileno())
2283
2284
session = gnutls.ClientSession(self.request)
2285
2286
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2287
# "+AES-256-CBC", "+SHA1",
2288
# "+COMP-NULL", "+CTYPE-OPENPGP",
2289
# "+DHE-DSS"))
1284
1285
session = (gnutls.connection
1286
.ClientSession(self.request,
1287
gnutls.connection
1288
.X509Credentials()))
1289
1290
# Note: gnutls.connection.X509Credentials is really a
1291
# generic GnuTLS certificate credentials object so long as
1292
# no X.509 keys are added to it. Therefore, we can use it
1293
# here despite using OpenPGP certificates.
1294
1295
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1296
# "+AES-256-CBC", "+SHA1",
1297
# "+COMP-NULL", "+CTYPE-OPENPGP",
1298
# "+DHE-DSS"))
2290
1299
# Use a fallback default, since this MUST be set.
2291
1300
priority = self.server.gnutls_priority
2292
1301
if priority is None:
2293
1302
priority = "NORMAL"
2294
gnutls.priority_set_direct(session._c_object,
2295
priority.encode("utf-8"),
2296
None)
2297
1303
(gnutls.library.functions
1304
.gnutls_priority_set_direct(session._c_object,
1305
priority, None))
1306
2298
1307
# Start communication using the Mandos protocol
2299
1308
# Get protocol number
2300
1309
line = self.request.makefile().readline()
2301
1310
logger.debug("Protocol version: %r", line)
2302
1311
try:
2303
1312
if int(line.strip().split()[0]) > 1:
2304
raise RuntimeError(line)
1313
raise RuntimeError
2305
1314
except (ValueError, IndexError, RuntimeError) as error:
2306
1315
logger.error("Unknown protocol version: %s", error)
2307
1316
return
2308
1317
2309
1318
# Start GnuTLS connection
2310
1319
try:
2311
1320
session.handshake()
2312
except gnutls.Error as error:
1321
except gnutls.errors.GNUTLSError as error:
2313
1322
logger.warning("Handshake failed: %s", error)
2314
1323
# Do not run session.bye() here: the session is not
2315
1324
# established. Just abandon the request.
2316
1325
return
2317
1326
logger.debug("Handshake succeeded")
2318
1327
2319
1328
approval_required = False
2320
1329
try:
2321
if gnutls.has_rawpk:
2322
fpr = b""
2323
try:
2324
key_id = self.key_id(
2325
self.peer_certificate(session))
2326
except (TypeError, gnutls.Error) as error:
2327
logger.warning("Bad certificate: %s", error)
2328
return
2329
logger.debug("Key ID: %s", key_id)
2330
2331
else:
2332
key_id = b""
2333
try:
2334
fpr = self.fingerprint(
2335
self.peer_certificate(session))
2336
except (TypeError, gnutls.Error) as error:
2337
logger.warning("Bad certificate: %s", error)
2338
return
2339
logger.debug("Fingerprint: %s", fpr)
2340
2341
try:
2342
client = ProxyClient(child_pipe, key_id, fpr,
1330
try:
1331
fpr = self.fingerprint(self.peer_certificate
1332
(session))
1333
except (TypeError,
1334
gnutls.errors.GNUTLSError) as error:
1335
logger.warning("Bad certificate: %s", error)
1336
return
1337
logger.debug("Fingerprint: %s", fpr)
1338
1339
try:
1340
client = ProxyClient(child_pipe, fpr,
2343
1341
self.client_address)
2344
1342
except KeyError:
2345
1343
return
2346
1344
2347
1345
if client.approval_delay:
2348
1346
delay = client.approval_delay
2349
1347
client.approvals_pending += 1
2350
1348
approval_required = True
2351
1349
2352
1350
while True:
2353
1351
if not client.enabled:
2354
1352
logger.info("Client %s is disabled",
2355
client.name)
1353
client.name)
2356
1354
if self.server.use_dbus:
2357
1355
# Emit D-Bus signal
2358
client.Rejected("Disabled")
1356
client.Rejected("Disabled")
2359
1357
return
2360
2361
if client.approved or not client.approval_delay:
2362
# We are approved or approval is disabled
1358
1359
if client._approved or not client.approval_delay:
1360
#We are approved or approval is disabled
2363
1361
break
2364
elif client.approved is None:
1362
elif client._approved is None:
2365
1363
logger.info("Client %s needs approval",
2366
1364
client.name)
2367
1365
if self.server.use_dbus:
2368
1366
# Emit D-Bus signal
2369
1367
client.NeedApproval(
2370
client.approval_delay.total_seconds()
2371
* 1000, client.approved_by_default)
1368
client.approval_delay_milliseconds(),
1369
client.approved_by_default)
2372
1370
else:
2373
1371
logger.warning("Client %s was not approved",
2374
1372
client.name)
2376
1374
# Emit D-Bus signal
2377
1375
client.Rejected("Denied")
2378
1376
return
2379
2380
# wait until timeout or approved
1377
1378
#wait until timeout or approved
1379
#x = float(client._timedelta_to_milliseconds(delay))
2381
1380
time = datetime.datetime.now()
2382
1381
client.changedstate.acquire()
2383
client.changedstate.wait(delay.total_seconds())
1382
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
2384
1383
client.changedstate.release()
2385
1384
time2 = datetime.datetime.now()
2386
1385
if (time2 - time) >= delay:
2396
1395
break
2397
1396
else:
2398
1397
delay -= time2 - time
2399
2400
try:
2401
session.send(client.secret)
2402
except gnutls.Error as error:
2403
logger.warning("gnutls send failed",
2404
exc_info=error)
2405
return
2406
1398
1399
sent_size = 0
1400
while sent_size < len(client.secret):
1401
try:
1402
sent = session.send(client.secret[sent_size:])
1403
except gnutls.errors.GNUTLSError as error:
1404
logger.warning("gnutls send failed")
1405
return
1406
logger.debug("Sent: %d, remaining: %d",
1407
sent, len(client.secret)
1408
- (sent_size + sent))
1409
sent_size += sent
1410
2407
1411
logger.info("Sending secret to %s", client.name)
2408
# bump the timeout using extended_timeout
2409
client.bump_timeout(client.extended_timeout)
1412
# bump the timeout as if seen
1413
client.checked_ok(client.extended_timeout)
2410
1414
if self.server.use_dbus:
2411
1415
# Emit D-Bus signal
2412
1416
client.GotSecret()
2413
1417
2414
1418
finally:
2415
1419
if approval_required:
2416
1420
client.approvals_pending -= 1
2417
1421
try:
2418
1422
session.bye()
2419
except gnutls.Error as error:
2420
logger.warning("GnuTLS bye failed",
2421
exc_info=error)
2422
1423
except gnutls.errors.GNUTLSError as error:
1424
logger.warning("GnuTLS bye failed")
1425
2423
1426
@staticmethod
2424
1427
def peer_certificate(session):
2425
"Return the peer's certificate as a bytestring"
2426
try:
2427
cert_type = gnutls.certificate_type_get2(session._c_object,
2428
gnutls.CTYPE_PEERS)
2429
except AttributeError:
2430
cert_type = gnutls.certificate_type_get(session._c_object)
2431
if gnutls.has_rawpk:
2432
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2433
else:
2434
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2435
# If not a valid certificate type...
2436
if cert_type not in valid_cert_types:
2437
logger.info("Cert type %r not in %r", cert_type,
2438
valid_cert_types)
2439
# ...return invalid data
2440
return b""
1428
"Return the peer's OpenPGP certificate as a bytestring"
1429
# If not an OpenPGP certificate...
1430
if (gnutls.library.functions
1431
.gnutls_certificate_type_get(session._c_object)
1432
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1433
# ...do the normal thing
1434
return session.peer_certificate
2441
1435
list_size = ctypes.c_uint(1)
2442
cert_list = (gnutls.certificate_get_peers
1436
cert_list = (gnutls.library.functions
1437
.gnutls_certificate_get_peers
2443
1438
(session._c_object, ctypes.byref(list_size)))
2444
1439
if not bool(cert_list) and list_size.value != 0:
2445
raise gnutls.Error("error getting peer certificate")
1440
raise gnutls.errors.GNUTLSError("error getting peer"
1441
" certificate")
2446
1442
if list_size.value == 0:
2447
1443
return None
2448
1444
cert = cert_list[0]
2449
1445
return ctypes.string_at(cert.data, cert.size)
2450
2451
@staticmethod
2452
def key_id(certificate):
2453
"Convert a certificate bytestring to a hexdigit key ID"
2454
# New GnuTLS "datum" with the public key
2455
datum = gnutls.datum_t(
2456
ctypes.cast(ctypes.c_char_p(certificate),
2457
ctypes.POINTER(ctypes.c_ubyte)),
2458
ctypes.c_uint(len(certificate)))
2459
# XXX all these need to be created in the gnutls "module"
2460
# New empty GnuTLS certificate
2461
pubkey = gnutls.pubkey_t()
2462
gnutls.pubkey_init(ctypes.byref(pubkey))
2463
# Import the raw public key into the certificate
2464
gnutls.pubkey_import(pubkey,
2465
ctypes.byref(datum),
2466
gnutls.X509_FMT_DER)
2467
# New buffer for the key ID
2468
buf = ctypes.create_string_buffer(32)
2469
buf_len = ctypes.c_size_t(len(buf))
2470
# Get the key ID from the raw public key into the buffer
2471
gnutls.pubkey_get_key_id(pubkey,
2472
gnutls.KEYID_USE_SHA256,
2473
ctypes.cast(ctypes.byref(buf),
2474
ctypes.POINTER(ctypes.c_ubyte)),
2475
ctypes.byref(buf_len))
2476
# Deinit the certificate
2477
gnutls.pubkey_deinit(pubkey)
2478
2479
# Convert the buffer to a Python bytestring
2480
key_id = ctypes.string_at(buf, buf_len.value)
2481
# Convert the bytestring to hexadecimal notation
2482
hex_key_id = binascii.hexlify(key_id).upper()
2483
return hex_key_id
2484
1446
2485
1447
@staticmethod
2486
1448
def fingerprint(openpgp):
2487
1449
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2488
1450
# New GnuTLS "datum" with the OpenPGP public key
2489
datum = gnutls.datum_t(
2490
ctypes.cast(ctypes.c_char_p(openpgp),
2491
ctypes.POINTER(ctypes.c_ubyte)),
2492
ctypes.c_uint(len(openpgp)))
1451
datum = (gnutls.library.types
1452
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1453
ctypes.POINTER
1454
(ctypes.c_ubyte)),
1455
ctypes.c_uint(len(openpgp))))
2493
1456
# New empty GnuTLS certificate
2494
crt = gnutls.openpgp_crt_t()
2495
gnutls.openpgp_crt_init(ctypes.byref(crt))
1457
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1458
(gnutls.library.functions
1459
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2496
1460
# Import the OpenPGP public key into the certificate
2497
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2498
gnutls.OPENPGP_FMT_RAW)
1461
(gnutls.library.functions
1462
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1463
gnutls.library.constants
1464
.GNUTLS_OPENPGP_FMT_RAW))
2499
1465
# Verify the self signature in the key
2500
1466
crtverify = ctypes.c_uint()
2501
gnutls.openpgp_crt_verify_self(crt, 0,
2502
ctypes.byref(crtverify))
1467
(gnutls.library.functions
1468
.gnutls_openpgp_crt_verify_self(crt, 0,
1469
ctypes.byref(crtverify)))
2503
1470
if crtverify.value != 0:
2504
gnutls.openpgp_crt_deinit(crt)
2505
raise gnutls.CertificateSecurityError(code
2506
=crtverify.value)
1471
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1472
raise (gnutls.errors.CertificateSecurityError
1473
("Verify failed"))
2507
1474
# New buffer for the fingerprint
2508
1475
buf = ctypes.create_string_buffer(20)
2509
1476
buf_len = ctypes.c_size_t()
2510
1477
# Get the fingerprint from the certificate into the buffer
2511
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2512
ctypes.byref(buf_len))
1478
(gnutls.library.functions
1479
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1480
ctypes.byref(buf_len)))
2513
1481
# Deinit the certificate
2514
gnutls.openpgp_crt_deinit(crt)
1482
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2515
1483
# Convert the buffer to a Python bytestring
2516
1484
fpr = ctypes.string_at(buf, buf_len.value)
2517
1485
# Convert the bytestring to hexadecimal notation
2518
hex_fpr = binascii.hexlify(fpr).upper()
1486
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2519
1487
return hex_fpr
2520
1488
2521
1489
2522
class MultiprocessingMixIn:
1490
class MultiprocessingMixIn(object):
2523
1491
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2524
2525
1492
def sub_process_main(self, request, address):
2526
1493
try:
2527
1494
self.finish_request(request, address)
2528
except Exception:
1495
except:
2529
1496
self.handle_error(request, address)
2530
1497
self.close_request(request)
2531
1498
2532
1499
def process_request(self, request, address):
2533
1500
"""Start a new process to process the request."""
2534
proc = multiprocessing.Process(target=self.sub_process_main,
2535
args=(request, address))
2536
proc.start()
2537
return proc
2538
2539
2540
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1501
multiprocessing.Process(target = self.sub_process_main,
1502
args = (request, address)).start()
1503
1504
1505
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2541
1506
""" adds a pipe to the MixIn """
2542
2543
1507
def process_request(self, request, client_address):
2544
1508
"""Overrides and wraps the original process_request().
2545
1509
2546
1510
This function creates a new pipe in self.pipe
2547
1511
"""
2548
1512
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2549
2550
proc = MultiprocessingMixIn.process_request(self, request,
2551
client_address)
1513
1514
super(MultiprocessingMixInWithPipe,
1515
self).process_request(request, client_address)
2552
1516
self.child_pipe.close()
2553
self.add_pipe(parent_pipe, proc)
2554
2555
def add_pipe(self, parent_pipe, proc):
1517
self.add_pipe(parent_pipe)
1518
1519
def add_pipe(self, parent_pipe):
2556
1520
"""Dummy function; override as necessary"""
2557
raise NotImplementedError()
1521
raise NotImplementedError
2558
1522
2559
1523
2560
1524
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2561
socketserver.TCPServer):
1525
socketserver.TCPServer, object):
2562
1526
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2563
1527
2564
1528
Attributes:
2565
1529
enabled: Boolean; whether this server is activated yet
2566
1530
interface: None or a network interface name (string)
2567
1531
use_ipv6: Boolean; to use IPv6 or not
2568
1532
"""
2569
2570
1533
def __init__(self, server_address, RequestHandlerClass,
2571
interface=None,
2572
use_ipv6=True,
2573
socketfd=None):
2574
"""If socketfd is set, use that file descriptor instead of
2575
creating a new one with socket.socket().
2576
"""
1534
interface=None, use_ipv6=True):
2577
1535
self.interface = interface
2578
1536
if use_ipv6:
2579
1537
self.address_family = socket.AF_INET6
2580
if socketfd is not None:
2581
# Save the file descriptor
2582
self.socketfd = socketfd
2583
# Save the original socket.socket() function
2584
self.socket_socket = socket.socket
2585
2586
# To implement --socket, we monkey patch socket.socket.
2587
#
2588
# (When socketserver.TCPServer is a new-style class, we
2589
# could make self.socket into a property instead of monkey
2590
# patching socket.socket.)
2591
#
2592
# Create a one-time-only replacement for socket.socket()
2593
@functools.wraps(socket.socket)
2594
def socket_wrapper(*args, **kwargs):
2595
# Restore original function so subsequent calls are
2596
# not affected.
2597
socket.socket = self.socket_socket
2598
del self.socket_socket
2599
# This time only, return a new socket object from the
2600
# saved file descriptor.
2601
return socket.fromfd(self.socketfd, *args, **kwargs)
2602
# Replace socket.socket() function with wrapper
2603
socket.socket = socket_wrapper
2604
# The socketserver.TCPServer.__init__ will call
2605
# socket.socket(), which might be our replacement,
2606
# socket_wrapper(), if socketfd was set.
2607
1538
socketserver.TCPServer.__init__(self, server_address,
2608
1539
RequestHandlerClass)
2609
2610
1540
def server_bind(self):
2611
1541
"""This overrides the normal server_bind() function
2612
1542
to bind to an interface if one was specified, and also NOT to
2613
1543
bind to an address or port if they were not specified."""
2614
global SO_BINDTODEVICE
2615
1544
if self.interface is not None:
2616
1545
if SO_BINDTODEVICE is None:
2617
# Fall back to a hard-coded value which seems to be
2618
# common enough.
2619
logger.warning("SO_BINDTODEVICE not found, trying 25")
2620
SO_BINDTODEVICE = 25
2621
try:
2622
self.socket.setsockopt(
2623
socket.SOL_SOCKET, SO_BINDTODEVICE,
2624
(self.interface + "\0").encode("utf-8"))
2625
except socket.error as error:
2626
if error.errno == errno.EPERM:
2627
logger.error("No permission to bind to"
2628
" interface %s", self.interface)
2629
elif error.errno == errno.ENOPROTOOPT:
2630
logger.error("SO_BINDTODEVICE not available;"
2631
" cannot bind to interface %s",
2632
self.interface)
2633
elif error.errno == errno.ENODEV:
2634
logger.error("Interface %s does not exist,"
2635
" cannot bind", self.interface)
2636
else:
2637
raise
1546
logger.error("SO_BINDTODEVICE does not exist;"
1547
" cannot bind to interface %s",
1548
self.interface)
1549
else:
1550
try:
1551
self.socket.setsockopt(socket.SOL_SOCKET,
1552
SO_BINDTODEVICE,
1553
str(self.interface
1554
+ '\0'))
1555
except socket.error as error:
1556
if error[0] == errno.EPERM:
1557
logger.error("No permission to"
1558
" bind to interface %s",
1559
self.interface)
1560
elif error[0] == errno.ENOPROTOOPT:
1561
logger.error("SO_BINDTODEVICE not available;"
1562
" cannot bind to interface %s",
1563
self.interface)
1564
else:
1565
raise
2638
1566
# Only bind(2) the socket if we really need to.
2639
1567
if self.server_address[0] or self.server_address[1]:
2640
if self.server_address[1]:
2641
self.allow_reuse_address = True
2642
1568
if not self.server_address[0]:
2643
1569
if self.address_family == socket.AF_INET6:
2644
any_address = "::" # in6addr_any
1570
any_address = "::" # in6addr_any
2645
1571
else:
2646
any_address = "0.0.0.0" # INADDR_ANY
1572
any_address = socket.INADDR_ANY
2647
1573
self.server_address = (any_address,
2648
1574
self.server_address[1])
2649
1575
elif not self.server_address[1]:
2650
self.server_address = (self.server_address[0], 0)
1576
self.server_address = (self.server_address[0],
1577
0)
2651
1578
# if self.interface:
2652
1579
# self.server_address = (self.server_address[0],
2653
1580
# 0, # port
2659
1586
2660
1587
class MandosServer(IPv6_TCPServer):
2661
1588
"""Mandos server.
2662
1589
2663
1590
Attributes:
2664
1591
clients: set of Client objects
2665
1592
gnutls_priority GnuTLS priority string
2666
1593
use_dbus: Boolean; to emit D-Bus signals or not
2667
2668
Assumes a GLib.MainLoop event loop.
1594
1595
Assumes a gobject.MainLoop event loop.
2669
1596
"""
2670
2671
1597
def __init__(self, server_address, RequestHandlerClass,
2672
interface=None,
2673
use_ipv6=True,
2674
clients=None,
2675
gnutls_priority=None,
2676
use_dbus=True,
2677
socketfd=None):
1598
interface=None, use_ipv6=True, clients=None,
1599
gnutls_priority=None, use_dbus=True):
2678
1600
self.enabled = False
2679
1601
self.clients = clients
2680
1602
if self.clients is None:
2681
self.clients = {}
1603
self.clients = set()
2682
1604
self.use_dbus = use_dbus
2683
1605
self.gnutls_priority = gnutls_priority
2684
1606
IPv6_TCPServer.__init__(self, server_address,
2685
1607
RequestHandlerClass,
2686
interface=interface,
2687
use_ipv6=use_ipv6,
2688
socketfd=socketfd)
2689
1608
interface = interface,
1609
use_ipv6 = use_ipv6)
2690
1610
def server_activate(self):
2691
1611
if self.enabled:
2692
1612
return socketserver.TCPServer.server_activate(self)
2693
2694
1613
def enable(self):
2695
1614
self.enabled = True
2696
2697
def add_pipe(self, parent_pipe, proc):
1615
def add_pipe(self, parent_pipe):
2698
1616
# Call "handle_ipc" for both data and EOF events
2699
GLib.io_add_watch(
2700
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2701
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2702
functools.partial(self.handle_ipc,
2703
parent_pipe=parent_pipe,
2704
proc=proc))
2705
2706
def handle_ipc(self, source, condition,
2707
parent_pipe=None,
2708
proc=None,
1617
gobject.io_add_watch(parent_pipe.fileno(),
1618
gobject.IO_IN | gobject.IO_HUP,
1619
functools.partial(self.handle_ipc,
1620
parent_pipe = parent_pipe))
1621
1622
def handle_ipc(self, source, condition, parent_pipe=None,
2709
1623
client_object=None):
2710
# error, or the other end of multiprocessing.Pipe has closed
2711
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2712
# Wait for other process to exit
2713
proc.join()
1624
condition_names = {
1625
gobject.IO_IN: "IN", # There is data to read.
1626
gobject.IO_OUT: "OUT", # Data can be written (without
1627
# blocking).
1628
gobject.IO_PRI: "PRI", # There is urgent data to read.
1629
gobject.IO_ERR: "ERR", # Error condition.
1630
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1631
# broken, usually for pipes and
1632
# sockets).
1633
}
1634
conditions_string = ' | '.join(name
1635
for cond, name in
1636
condition_names.iteritems()
1637
if cond & condition)
1638
# error or the other end of multiprocessing.Pipe has closed
1639
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2714
1640
return False
2715
1641
2716
1642
# Read a request from the child
2717
1643
request = parent_pipe.recv()
2718
1644
command = request[0]
2719
1645
2720
1646
if command == 'init':
2721
key_id = request[1].decode("ascii")
2722
fpr = request[2].decode("ascii")
2723
address = request[3]
2724
2725
for c in self.clients.values():
2726
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2727
continue
2728
if key_id and c.key_id == key_id:
2729
client = c
2730
break
2731
if fpr and c.fingerprint == fpr:
1647
fpr = request[1]
1648
address = request[2]
1649
1650
for c in self.clients:
1651
if c.fingerprint == fpr:
2732
1652
client = c
2733
1653
break
2734
1654
else:
2735
logger.info("Client not found for key ID: %s, address"
2736
": %s", key_id or fpr, address)
1655
logger.info("Client not found for fingerprint: %s, ad"
1656
"dress: %s", fpr, address)
2737
1657
if self.use_dbus:
2738
1658
# Emit D-Bus signal
2739
mandos_dbus_service.ClientNotFound(key_id or fpr,
2740
address[0])
1659
mandos_dbus_service.ClientNotFound(fpr, address[0])
2741
1660
parent_pipe.send(False)
2742
1661
return False
2743
2744
GLib.io_add_watch(
2745
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2746
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2747
functools.partial(self.handle_ipc,
2748
parent_pipe=parent_pipe,
2749
proc=proc,
2750
client_object=client))
1662
1663
gobject.io_add_watch(parent_pipe.fileno(),
1664
gobject.IO_IN | gobject.IO_HUP,
1665
functools.partial(self.handle_ipc,
1666
parent_pipe = parent_pipe,
1667
client_object = client))
2751
1668
parent_pipe.send(True)
2752
# remove the old hook in favor of the new above hook on
2753
# same fileno
1669
# remove the old hook in favor of the new above hook on same fileno
2754
1670
return False
2755
1671
if command == 'funcall':
2756
1672
funcname = request[1]
2757
1673
args = request[2]
2758
1674
kwargs = request[3]
2759
2760
parent_pipe.send(('data', getattr(client_object,
2761
funcname)(*args,
2762
**kwargs)))
2763
1675
1676
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1677
2764
1678
if command == 'getattr':
2765
1679
attrname = request[1]
2766
if isinstance(client_object.__getattribute__(attrname),
2767
collections.abc.Callable):
2768
parent_pipe.send(('function', ))
1680
if callable(client_object.__getattribute__(attrname)):
1681
parent_pipe.send(('function',))
2769
1682
else:
2770
parent_pipe.send((
2771
'data', client_object.__getattribute__(attrname)))
2772
1683
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1684
2773
1685
if command == 'setattr':
2774
1686
attrname = request[1]
2775
1687
value = request[2]
2776
1688
setattr(client_object, attrname, value)
2777
1689
2778
1690
return True
2779
1691
2780
1692
2781
def rfc3339_duration_to_delta(duration):
2782
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2783
2784
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2785
True
2786
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2787
True
2788
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2789
True
2790
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2791
True
2792
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2793
True
2794
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2795
True
2796
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2797
True
2798
"""
2799
2800
# Parsing an RFC 3339 duration with regular expressions is not
2801
# possible - there would have to be multiple places for the same
2802
# values, like seconds. The current code, while more esoteric, is
2803
# cleaner without depending on a parsing library. If Python had a
2804
# built-in library for parsing we would use it, but we'd like to
2805
# avoid excessive use of external libraries.
2806
2807
# New type for defining tokens, syntax, and semantics all-in-one
2808
Token = collections.namedtuple("Token", (
2809
"regexp", # To match token; if "value" is not None, must have
2810
# a "group" containing digits
2811
"value", # datetime.timedelta or None
2812
"followers")) # Tokens valid after this token
2813
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2814
# the "duration" ABNF definition in RFC 3339, Appendix A.
2815
token_end = Token(re.compile(r"$"), None, frozenset())
2816
token_second = Token(re.compile(r"(\d+)S"),
2817
datetime.timedelta(seconds=1),
2818
frozenset((token_end, )))
2819
token_minute = Token(re.compile(r"(\d+)M"),
2820
datetime.timedelta(minutes=1),
2821
frozenset((token_second, token_end)))
2822
token_hour = Token(re.compile(r"(\d+)H"),
2823
datetime.timedelta(hours=1),
2824
frozenset((token_minute, token_end)))
2825
token_time = Token(re.compile(r"T"),
2826
None,
2827
frozenset((token_hour, token_minute,
2828
token_second)))
2829
token_day = Token(re.compile(r"(\d+)D"),
2830
datetime.timedelta(days=1),
2831
frozenset((token_time, token_end)))
2832
token_month = Token(re.compile(r"(\d+)M"),
2833
datetime.timedelta(weeks=4),
2834
frozenset((token_day, token_end)))
2835
token_year = Token(re.compile(r"(\d+)Y"),
2836
datetime.timedelta(weeks=52),
2837
frozenset((token_month, token_end)))
2838
token_week = Token(re.compile(r"(\d+)W"),
2839
datetime.timedelta(weeks=1),
2840
frozenset((token_end, )))
2841
token_duration = Token(re.compile(r"P"), None,
2842
frozenset((token_year, token_month,
2843
token_day, token_time,
2844
token_week)))
2845
# Define starting values:
2846
# Value so far
2847
value = datetime.timedelta()
2848
found_token = None
2849
# Following valid tokens
2850
followers = frozenset((token_duration, ))
2851
# String left to parse
2852
s = duration
2853
# Loop until end token is found
2854
while found_token is not token_end:
2855
# Search for any currently valid tokens
2856
for token in followers:
2857
match = token.regexp.match(s)
2858
if match is not None:
2859
# Token found
2860
if token.value is not None:
2861
# Value found, parse digits
2862
factor = int(match.group(1), 10)
2863
# Add to value so far
2864
value += factor * token.value
2865
# Strip token from string
2866
s = token.regexp.sub("", s, 1)
2867
# Go to found token
2868
found_token = token
2869
# Set valid next tokens
2870
followers = found_token.followers
2871
break
2872
else:
2873
# No currently valid tokens were found
2874
raise ValueError("Invalid RFC 3339 duration: {!r}"
2875
.format(duration))
2876
# End token found
2877
return value
2878
2879
2880
1693
def string_to_delta(interval):
2881
1694
"""Parse a string and return a datetime.timedelta
2882
2883
>>> string_to_delta('7d') == datetime.timedelta(7)
2884
True
2885
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2886
True
2887
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2888
True
2889
>>> string_to_delta('24h') == datetime.timedelta(1)
2890
True
2891
>>> string_to_delta('1w') == datetime.timedelta(7)
2892
True
2893
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2894
True
1695
1696
>>> string_to_delta('7d')
1697
datetime.timedelta(7)
1698
>>> string_to_delta('60s')
1699
datetime.timedelta(0, 60)
1700
>>> string_to_delta('60m')
1701
datetime.timedelta(0, 3600)
1702
>>> string_to_delta('24h')
1703
datetime.timedelta(1)
1704
>>> string_to_delta('1w')
1705
datetime.timedelta(7)
1706
>>> string_to_delta('5m 30s')
1707
datetime.timedelta(0, 330)
2895
1708
"""
2896
2897
try:
2898
return rfc3339_duration_to_delta(interval)
2899
except ValueError:
2900
pass
2901
2902
1709
timevalue = datetime.timedelta(0)
2903
1710
for s in interval.split():
2904
1711
try:
2905
suffix = s[-1]
1712
suffix = unicode(s[-1])
2906
1713
value = int(s[:-1])
2907
1714
if suffix == "d":
2908
1715
delta = datetime.timedelta(value)
2915
1722
elif suffix == "w":
2916
1723
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2917
1724
else:
2918
raise ValueError("Unknown suffix {!r}".format(suffix))
2919
except IndexError as e:
1725
raise ValueError("Unknown suffix %r" % suffix)
1726
except (ValueError, IndexError) as e:
2920
1727
raise ValueError(*(e.args))
2921
1728
timevalue += delta
2922
1729
return timevalue
2923
1730
2924
1731
2925
def daemon(nochdir=False, noclose=False):
1732
def if_nametoindex(interface):
1733
"""Call the C function if_nametoindex(), or equivalent
1734
1735
Note: This function cannot accept a unicode string."""
1736
global if_nametoindex
1737
try:
1738
if_nametoindex = (ctypes.cdll.LoadLibrary
1739
(ctypes.util.find_library("c"))
1740
.if_nametoindex)
1741
except (OSError, AttributeError):
1742
logger.warning("Doing if_nametoindex the hard way")
1743
def if_nametoindex(interface):
1744
"Get an interface index the hard way, i.e. using fcntl()"
1745
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1746
with contextlib.closing(socket.socket()) as s:
1747
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1748
struct.pack(str("16s16x"),
1749
interface))
1750
interface_index = struct.unpack(str("I"),
1751
ifreq[16:20])[0]
1752
return interface_index
1753
return if_nametoindex(interface)
1754
1755
1756
def daemon(nochdir = False, noclose = False):
2926
1757
"""See daemon(3). Standard BSD Unix function.
2927
1758
2928
1759
This should really exist as os.daemon, but it doesn't (yet)."""
2929
1760
if os.fork():
2930
1761
sys.exit()
2935
1766
sys.exit()
2936
1767
if not noclose:
2937
1768
# Close all standard open file descriptors
2938
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1769
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2939
1770
if not stat.S_ISCHR(os.fstat(null).st_mode):
2940
1771
raise OSError(errno.ENODEV,
2941
"{} not a character device"
2942
.format(os.devnull))
1772
"%s not a character device"
1773
% os.path.devnull)
2943
1774
os.dup2(null, sys.stdin.fileno())
2944
1775
os.dup2(null, sys.stdout.fileno())
2945
1776
os.dup2(null, sys.stderr.fileno())
2948
1779
2949
1780
2950
1781
def main():
2951
1782
2952
1783
##################################################################
2953
1784
# Parsing of options, both command line and config file
2954
1785
2955
1786
parser = argparse.ArgumentParser()
2956
1787
parser.add_argument("-v", "--version", action="version",
2957
version="%(prog)s {}".format(version),
1788
version = "%%(prog)s %s" % version,
2958
1789
help="show version number and exit")
2959
1790
parser.add_argument("-i", "--interface", metavar="IF",
2960
1791
help="Bind to interface IF")
2966
1797
help="Run self-test")
2967
1798
parser.add_argument("--debug", action="store_true",
2968
1799
help="Debug mode; run in foreground and log"
2969
" to terminal", default=None)
1800
" to terminal")
2970
1801
parser.add_argument("--debuglevel", metavar="LEVEL",
2971
1802
help="Debug level for stdout output")
2972
1803
parser.add_argument("--priority", help="GnuTLS"
2979
1810
" files")
2980
1811
parser.add_argument("--no-dbus", action="store_false",
2981
1812
dest="use_dbus", help="Do not provide D-Bus"
2982
" system bus interface", default=None)
1813
" system bus interface")
2983
1814
parser.add_argument("--no-ipv6", action="store_false",
2984
dest="use_ipv6", help="Do not use IPv6",
2985
default=None)
2986
parser.add_argument("--no-restore", action="store_false",
2987
dest="restore", help="Do not restore stored"
2988
" state", default=None)
2989
parser.add_argument("--socket", type=int,
2990
help="Specify a file descriptor to a network"
2991
" socket to use instead of creating one")
2992
parser.add_argument("--statedir", metavar="DIR",
2993
help="Directory to save/restore state in")
2994
parser.add_argument("--foreground", action="store_true",
2995
help="Run in foreground", default=None)
2996
parser.add_argument("--no-zeroconf", action="store_false",
2997
dest="zeroconf", help="Do not use Zeroconf",
2998
default=None)
2999
1815
dest="use_ipv6", help="Do not use IPv6")
3000
1816
options = parser.parse_args()
3001
1817
1818
if options.check:
1819
import doctest
1820
doctest.testmod()
1821
sys.exit()
1822
3002
1823
# Default values for config file for server-global settings
3003
if gnutls.has_rawpk:
3004
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3005
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3006
else:
3007
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3008
":+SIGN-DSA-SHA256")
3009
server_defaults = {"interface": "",
3010
"address": "",
3011
"port": "",
3012
"debug": "False",
3013
"priority": priority,
3014
"servicename": "Mandos",
3015
"use_dbus": "True",
3016
"use_ipv6": "True",
3017
"debuglevel": "",
3018
"restore": "True",
3019
"socket": "",
3020
"statedir": "/var/lib/mandos",
3021
"foreground": "False",
3022
"zeroconf": "True",
3023
}
3024
del priority
3025
1824
server_defaults = { "interface": "",
1825
"address": "",
1826
"port": "",
1827
"debug": "False",
1828
"priority":
1829
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1830
"servicename": "Mandos",
1831
"use_dbus": "True",
1832
"use_ipv6": "True",
1833
"debuglevel": "",
1834
}
1835
3026
1836
# Parse config file for server-global settings
3027
server_config = configparser.ConfigParser(server_defaults)
1837
server_config = configparser.SafeConfigParser(server_defaults)
3028
1838
del server_defaults
3029
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3030
# Convert the ConfigParser object to a dict
1839
server_config.read(os.path.join(options.configdir,
1840
"mandos.conf"))
1841
# Convert the SafeConfigParser object to a dict
3031
1842
server_settings = server_config.defaults()
3032
1843
# Use the appropriate methods on the non-string config options
3033
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3034
"foreground", "zeroconf"):
1844
for option in ("debug", "use_dbus", "use_ipv6"):
3035
1845
server_settings[option] = server_config.getboolean("DEFAULT",
3036
1846
option)
3037
1847
if server_settings["port"]:
3038
1848
server_settings["port"] = server_config.getint("DEFAULT",
3039
1849
"port")
3040
if server_settings["socket"]:
3041
server_settings["socket"] = server_config.getint("DEFAULT",
3042
"socket")
3043
# Later, stdin will, and stdout and stderr might, be dup'ed
3044
# over with an opened os.devnull. But we don't want this to
3045
# happen with a supplied network socket.
3046
if 0 <= server_settings["socket"] <= 2:
3047
server_settings["socket"] = os.dup(server_settings
3048
["socket"])
3049
1850
del server_config
3050
1851
3051
1852
# Override the settings from the config file with command line
3052
1853
# options, if set.
3053
1854
for option in ("interface", "address", "port", "debug",
3054
"priority", "servicename", "configdir", "use_dbus",
3055
"use_ipv6", "debuglevel", "restore", "statedir",
3056
"socket", "foreground", "zeroconf"):
1855
"priority", "servicename", "configdir",
1856
"use_dbus", "use_ipv6", "debuglevel"):
3057
1857
value = getattr(options, option)
3058
1858
if value is not None:
3059
1859
server_settings[option] = value
3060
1860
del options
3061
1861
# Force all strings to be unicode
3062
1862
for option in server_settings.keys():
3063
if isinstance(server_settings[option], bytes):
3064
server_settings[option] = (server_settings[option]
3065
.decode("utf-8"))
3066
# Force all boolean options to be boolean
3067
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3068
"foreground", "zeroconf"):
3069
server_settings[option] = bool(server_settings[option])
3070
# Debug implies foreground
3071
if server_settings["debug"]:
3072
server_settings["foreground"] = True
1863
if type(server_settings[option]) is str:
1864
server_settings[option] = unicode(server_settings[option])
3073
1865
# Now we have our good server settings in "server_settings"
3074
1866
3075
1867
##################################################################
3076
3077
if (not server_settings["zeroconf"]
3078
and not (server_settings["port"]
3079
or server_settings["socket"] != "")):
3080
parser.error("Needs port or socket to work without Zeroconf")
3081
1868
3082
1869
# For convenience
3083
1870
debug = server_settings["debug"]
3084
1871
debuglevel = server_settings["debuglevel"]
3085
1872
use_dbus = server_settings["use_dbus"]
3086
1873
use_ipv6 = server_settings["use_ipv6"]
3087
stored_state_path = os.path.join(server_settings["statedir"],
3088
stored_state_file)
3089
foreground = server_settings["foreground"]
3090
zeroconf = server_settings["zeroconf"]
3091
3092
if debug:
3093
initlogger(debug, logging.DEBUG)
3094
else:
3095
if not debuglevel:
3096
initlogger(debug)
3097
else:
3098
level = getattr(logging, debuglevel.upper())
3099
initlogger(debug, level)
3100
1874
3101
1875
if server_settings["servicename"] != "Mandos":
3102
syslogger.setFormatter(
3103
logging.Formatter('Mandos ({}) [%(process)d]:'
3104
' %(levelname)s: %(message)s'.format(
3105
server_settings["servicename"])))
3106
1876
syslogger.setFormatter(logging.Formatter
1877
('Mandos (%s) [%%(process)d]:'
1878
' %%(levelname)s: %%(message)s'
1879
% server_settings["servicename"]))
1880
3107
1881
# Parse config file with clients
3108
client_config = configparser.ConfigParser(Client.client_defaults)
1882
client_defaults = { "timeout": "5m",
1883
"extended_timeout": "15m",
1884
"interval": "2m",
1885
"checker": "fping -q -- %%(host)s",
1886
"host": "",
1887
"approval_delay": "0s",
1888
"approval_duration": "1s",
1889
}
1890
client_config = configparser.SafeConfigParser(client_defaults)
3109
1891
client_config.read(os.path.join(server_settings["configdir"],
3110
1892
"clients.conf"))
3111
1893
3112
1894
global mandos_dbus_service
3113
1895
mandos_dbus_service = None
3114
3115
socketfd = None
3116
if server_settings["socket"] != "":
3117
socketfd = server_settings["socket"]
3118
tcp_server = MandosServer(
3119
(server_settings["address"], server_settings["port"]),
3120
ClientHandler,
3121
interface=(server_settings["interface"] or None),
3122
use_ipv6=use_ipv6,
3123
gnutls_priority=server_settings["priority"],
3124
use_dbus=use_dbus,
3125
socketfd=socketfd)
3126
if not foreground:
3127
pidfilename = "/run/mandos.pid"
3128
if not os.path.isdir("/run/."):
3129
pidfilename = "/var/run/mandos.pid"
3130
pidfile = None
3131
try:
3132
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3133
except IOError as e:
3134
logger.error("Could not open file %r", pidfilename,
3135
exc_info=e)
3136
3137
for name, group in (("_mandos", "_mandos"),
3138
("mandos", "mandos"),
3139
("nobody", "nogroup")):
3140
try:
3141
uid = pwd.getpwnam(name).pw_uid
3142
gid = pwd.getpwnam(group).pw_gid
3143
break
1896
1897
tcp_server = MandosServer((server_settings["address"],
1898
server_settings["port"]),
1899
ClientHandler,
1900
interface=(server_settings["interface"]
1901
or None),
1902
use_ipv6=use_ipv6,
1903
gnutls_priority=
1904
server_settings["priority"],
1905
use_dbus=use_dbus)
1906
if not debug:
1907
pidfilename = "/var/run/mandos.pid"
1908
try:
1909
pidfile = open(pidfilename, "w")
1910
except IOError:
1911
logger.error("Could not open file %r", pidfilename)
1912
1913
try:
1914
uid = pwd.getpwnam("_mandos").pw_uid
1915
gid = pwd.getpwnam("_mandos").pw_gid
1916
except KeyError:
1917
try:
1918
uid = pwd.getpwnam("mandos").pw_uid
1919
gid = pwd.getpwnam("mandos").pw_gid
3144
1920
except KeyError:
3145
continue
3146
else:
3147
uid = 65534
3148
gid = 65534
1921
try:
1922
uid = pwd.getpwnam("nobody").pw_uid
1923
gid = pwd.getpwnam("nobody").pw_gid
1924
except KeyError:
1925
uid = 65534
1926
gid = 65534
3149
1927
try:
3150
1928
os.setgid(gid)
3151
1929
os.setuid(uid)
3152
if debug:
3153
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3154
gid))
3155
1930
except OSError as error:
3156
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3157
.format(uid, gid, os.strerror(error.errno)))
3158
if error.errno != errno.EPERM:
3159
raise
3160
1931
if error[0] != errno.EPERM:
1932
raise error
1933
1934
if not debug and not debuglevel:
1935
syslogger.setLevel(logging.WARNING)
1936
console.setLevel(logging.WARNING)
1937
if debuglevel:
1938
level = getattr(logging, debuglevel.upper())
1939
syslogger.setLevel(level)
1940
console.setLevel(level)
1941
3161
1942
if debug:
3162
1943
# Enable all possible GnuTLS debugging
3163
1944
3164
1945
# "Use a log level over 10 to enable all debugging options."
3165
1946
# - GnuTLS manual
3166
gnutls.global_set_log_level(11)
3167
3168
@gnutls.log_func
1947
gnutls.library.functions.gnutls_global_set_log_level(11)
1948
1949
@gnutls.library.types.gnutls_log_func
3169
1950
def debug_gnutls(level, string):
3170
1951
logger.debug("GnuTLS: %s", string[:-1])
3171
3172
gnutls.global_set_log_function(debug_gnutls)
3173
1952
1953
(gnutls.library.functions
1954
.gnutls_global_set_log_function(debug_gnutls))
1955
3174
1956
# Redirect stdin so all checkers get /dev/null
3175
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1957
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3176
1958
os.dup2(null, sys.stdin.fileno())
3177
1959
if null > 2:
3178
1960
os.close(null)
3179
1961
else:
1962
# No console logging
1963
logger.removeHandler(console)
1964
3180
1965
# Need to fork before connecting to D-Bus
3181
if not foreground:
1966
if not debug:
3182
1967
# Close all input and output, do double fork, etc.
3183
1968
daemon()
3184
3185
if gi.version_info < (3, 10, 2):
3186
# multiprocessing will use threads, so before we use GLib we
3187
# need to inform GLib that threads will be used.
3188
GLib.threads_init()
3189
1969
3190
1970
global main_loop
3191
1971
# From the Avahi example code
3192
DBusGMainLoop(set_as_default=True)
3193
main_loop = GLib.MainLoop()
1972
DBusGMainLoop(set_as_default=True )
1973
main_loop = gobject.MainLoop()
3194
1974
bus = dbus.SystemBus()
3195
1975
# End of Avahi example code
3196
1976
if use_dbus:
3197
1977
try:
3198
1978
bus_name = dbus.service.BusName("se.recompile.Mandos",
3199
bus,
3200
do_not_queue=True)
3201
old_bus_name = dbus.service.BusName(
3202
"se.bsnet.fukt.Mandos", bus,
3203
do_not_queue=True)
3204
except dbus.exceptions.DBusException as e:
3205
logger.error("Disabling D-Bus:", exc_info=e)
1979
bus, do_not_queue=True)
1980
old_bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1981
bus, do_not_queue=True)
1982
except dbus.exceptions.NameExistsException as e:
1983
logger.error(unicode(e) + ", disabling D-Bus")
3206
1984
use_dbus = False
3207
1985
server_settings["use_dbus"] = False
3208
1986
tcp_server.use_dbus = False
3209
if zeroconf:
3210
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3211
service = AvahiServiceToSyslog(
3212
name=server_settings["servicename"],
3213
servicetype="_mandos._tcp",
3214
protocol=protocol,
3215
bus=bus)
3216
if server_settings["interface"]:
3217
service.interface = if_nametoindex(
3218
server_settings["interface"].encode("utf-8"))
3219
1987
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1988
service = AvahiService(name = server_settings["servicename"],
1989
servicetype = "_mandos._tcp",
1990
protocol = protocol, bus = bus)
1991
if server_settings["interface"]:
1992
service.interface = (if_nametoindex
1993
(str(server_settings["interface"])))
1994
3220
1995
global multiprocessing_manager
3221
1996
multiprocessing_manager = multiprocessing.Manager()
3222
1997
3223
1998
client_class = Client
3224
1999
if use_dbus:
3225
client_class = functools.partial(ClientDBus, bus=bus)
3226
3227
client_settings = Client.config_parser(client_config)
3228
old_client_settings = {}
3229
clients_data = {}
3230
3231
# This is used to redirect stdout and stderr for checker processes
3232
global wnull
3233
wnull = open(os.devnull, "w") # A writable /dev/null
3234
# Only used if server is running in foreground but not in debug
3235
# mode
3236
if debug or not foreground:
3237
wnull.close()
3238
3239
# Get client data and settings from last running state.
3240
if server_settings["restore"]:
3241
try:
3242
with open(stored_state_path, "rb") as stored_state:
3243
if sys.version_info.major == 2:
3244
clients_data, old_client_settings = pickle.load(
3245
stored_state)
3246
else:
3247
bytes_clients_data, bytes_old_client_settings = (
3248
pickle.load(stored_state, encoding="bytes"))
3249
# Fix bytes to strings
3250
# clients_data
3251
# .keys()
3252
clients_data = {(key.decode("utf-8")
3253
if isinstance(key, bytes)
3254
else key): value
3255
for key, value in
3256
bytes_clients_data.items()}
3257
del bytes_clients_data
3258
for key in clients_data:
3259
value = {(k.decode("utf-8")
3260
if isinstance(k, bytes) else k): v
3261
for k, v in
3262
clients_data[key].items()}
3263
clients_data[key] = value
3264
# .client_structure
3265
value["client_structure"] = [
3266
(s.decode("utf-8")
3267
if isinstance(s, bytes)
3268
else s) for s in
3269
value["client_structure"]]
3270
# .name, .host, and .checker_command
3271
for k in ("name", "host", "checker_command"):
3272
if isinstance(value[k], bytes):
3273
value[k] = value[k].decode("utf-8")
3274
if "key_id" not in value:
3275
value["key_id"] = ""
3276
elif "fingerprint" not in value:
3277
value["fingerprint"] = ""
3278
# old_client_settings
3279
# .keys()
3280
old_client_settings = {
3281
(key.decode("utf-8")
3282
if isinstance(key, bytes)
3283
else key): value
3284
for key, value in
3285
bytes_old_client_settings.items()}
3286
del bytes_old_client_settings
3287
# .host and .checker_command
3288
for value in old_client_settings.values():
3289
for attribute in ("host", "checker_command"):
3290
if isinstance(value[attribute], bytes):
3291
value[attribute] = (value[attribute]
3292
.decode("utf-8"))
3293
os.remove(stored_state_path)
3294
except IOError as e:
3295
if e.errno == errno.ENOENT:
3296
logger.warning("Could not load persistent state:"
3297
" {}".format(os.strerror(e.errno)))
3298
else:
3299
logger.critical("Could not load persistent state:",
3300
exc_info=e)
3301
raise
3302
except EOFError as e:
3303
logger.warning("Could not load persistent state: "
3304
"EOFError:",
3305
exc_info=e)
3306
3307
with PGPEngine() as pgp:
3308
for client_name, client in clients_data.items():
3309
# Skip removed clients
3310
if client_name not in client_settings:
3311
continue
3312
3313
# Decide which value to use after restoring saved state.
3314
# We have three different values: Old config file,
3315
# new config file, and saved state.
3316
# New config value takes precedence if it differs from old
3317
# config value, otherwise use saved state.
3318
for name, value in client_settings[client_name].items():
3319
try:
3320
# For each value in new config, check if it
3321
# differs from the old config value (Except for
3322
# the "secret" attribute)
3323
if (name != "secret"
3324
and (value !=
3325
old_client_settings[client_name][name])):
3326
client[name] = value
3327
except KeyError:
3328
pass
3329
3330
# Clients who has passed its expire date can still be
3331
# enabled if its last checker was successful. A Client
3332
# whose checker succeeded before we stored its state is
3333
# assumed to have successfully run all checkers during
3334
# downtime.
3335
if client["enabled"]:
3336
if datetime.datetime.utcnow() >= client["expires"]:
3337
if not client["last_checked_ok"]:
3338
logger.warning(
3339
"disabling client {} - Client never "
3340
"performed a successful checker".format(
3341
client_name))
3342
client["enabled"] = False
3343
elif client["last_checker_status"] != 0:
3344
logger.warning(
3345
"disabling client {} - Client last"
3346
" checker failed with error code"
3347
" {}".format(
3348
client_name,
3349
client["last_checker_status"]))
3350
client["enabled"] = False
3351
else:
3352
client["expires"] = (
3353
datetime.datetime.utcnow()
3354
+ client["timeout"])
3355
logger.debug("Last checker succeeded,"
3356
" keeping {} enabled".format(
3357
client_name))
2000
client_class = functools.partial(ClientDBusTransitional, bus = bus)
2001
def client_config_items(config, section):
2002
special_settings = {
2003
"approved_by_default":
2004
lambda: config.getboolean(section,
2005
"approved_by_default"),
2006
}
2007
for name, value in config.items(section):
3358
2008
try:
3359
client["secret"] = pgp.decrypt(
3360
client["encrypted_secret"],
3361
client_settings[client_name]["secret"])
3362
except PGPError:
3363
# If decryption fails, we use secret from new settings
3364
logger.debug("Failed to decrypt {} old secret".format(
3365
client_name))
3366
client["secret"] = (client_settings[client_name]
3367
["secret"])
3368
3369
# Add/remove clients based on new changes made to config
3370
for client_name in (set(old_client_settings)
3371
- set(client_settings)):
3372
del clients_data[client_name]
3373
for client_name in (set(client_settings)
3374
- set(old_client_settings)):
3375
clients_data[client_name] = client_settings[client_name]
3376
3377
# Create all client objects
3378
for client_name, client in clients_data.items():
3379
tcp_server.clients[client_name] = client_class(
3380
name=client_name,
3381
settings=client,
3382
server_settings=server_settings)
3383
2009
yield (name, special_settings[name]())
2010
except KeyError:
2011
yield (name, value)
2012
2013
tcp_server.clients.update(set(
2014
client_class(name = section,
2015
config= dict(client_config_items(
2016
client_config, section)))
2017
for section in client_config.sections()))
3384
2018
if not tcp_server.clients:
3385
2019
logger.warning("No clients defined")
3386
3387
if not foreground:
3388
if pidfile is not None:
3389
pid = os.getpid()
3390
try:
3391
with pidfile:
3392
print(pid, file=pidfile)
3393
except IOError:
3394
logger.error("Could not write to file %r with PID %d",
3395
pidfilename, pid)
3396
del pidfile
2020
2021
if not debug:
2022
try:
2023
with pidfile:
2024
pid = os.getpid()
2025
pidfile.write(str(pid) + "\n".encode("utf-8"))
2026
del pidfile
2027
except IOError:
2028
logger.error("Could not write to file %r with PID %d",
2029
pidfilename, pid)
2030
except NameError:
2031
# "pidfile" was never created
2032
pass
3397
2033
del pidfilename
3398
3399
for termsig in (signal.SIGHUP, signal.SIGTERM):
3400
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3401
lambda: main_loop.quit() and False)
3402
2034
2035
signal.signal(signal.SIGINT, signal.SIG_IGN)
2036
2037
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2038
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2039
3403
2040
if use_dbus:
3404
3405
@alternate_dbus_interfaces(
3406
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3407
class MandosDBusService(DBusObjectWithObjectManager):
2041
class MandosDBusService(dbus.service.Object):
3408
2042
"""A D-Bus proxy object"""
3409
3410
2043
def __init__(self):
3411
2044
dbus.service.Object.__init__(self, bus, "/")
3412
3413
2045
_interface = "se.recompile.Mandos"
3414
2046
3415
2047
@dbus.service.signal(_interface, signature="o")
3416
2048
def ClientAdded(self, objpath):
3417
2049
"D-Bus signal"
3418
2050
pass
3419
2051
3420
2052
@dbus.service.signal(_interface, signature="ss")
3421
def ClientNotFound(self, key_id, address):
2053
def ClientNotFound(self, fingerprint, address):
3422
2054
"D-Bus signal"
3423
2055
pass
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2056
3427
2057
@dbus.service.signal(_interface, signature="os")
3428
2058
def ClientRemoved(self, objpath, name):
3429
2059
"D-Bus signal"
3430
2060
pass
3431
3432
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3433
"true"})
2061
3434
2062
@dbus.service.method(_interface, out_signature="ao")
3435
2063
def GetAllClients(self):
3436
2064
"D-Bus method"
3437
return dbus.Array(c.dbus_object_path for c in
3438
tcp_server.clients.values())
3439
3440
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3441
"true"})
2065
return dbus.Array(c.dbus_object_path
2066
for c in tcp_server.clients)
2067
3442
2068
@dbus.service.method(_interface,
3443
2069
out_signature="a{oa{sv}}")
3444
2070
def GetAllClientsWithProperties(self):
3445
2071
"D-Bus method"
3446
2072
return dbus.Dictionary(
3447
{c.dbus_object_path: c.GetAll(
3448
"se.recompile.Mandos.Client")
3449
for c in tcp_server.clients.values()},
2073
((c.dbus_object_path, c.GetAll(""))
2074
for c in tcp_server.clients),
3450
2075
signature="oa{sv}")
3451
2076
3452
2077
@dbus.service.method(_interface, in_signature="o")
3453
2078
def RemoveClient(self, object_path):
3454
2079
"D-Bus method"
3455
for c in tcp_server.clients.values():
2080
for c in tcp_server.clients:
3456
2081
if c.dbus_object_path == object_path:
3457
del tcp_server.clients[c.name]
2082
tcp_server.clients.remove(c)
3458
2083
c.remove_from_connection()
3459
# Don't signal the disabling
2084
# Don't signal anything except ClientRemoved
3460
2085
c.disable(quiet=True)
3461
# Emit D-Bus signal for removal
3462
self.client_removed_signal(c)
2086
# Emit D-Bus signal
2087
self.ClientRemoved(object_path, c.name)
3463
2088
return
3464
2089
raise KeyError(object_path)
3465
2090
3466
2091
del _interface
3467
3468
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3469
out_signature="a{oa{sa{sv}}}")
3470
def GetManagedObjects(self):
3471
"""D-Bus method"""
3472
return dbus.Dictionary(
3473
{client.dbus_object_path:
3474
dbus.Dictionary(
3475
{interface: client.GetAll(interface)
3476
for interface in
3477
client._get_all_interface_names()})
3478
for client in tcp_server.clients.values()})
3479
3480
def client_added_signal(self, client):
3481
"""Send the new standard signal and the old signal"""
3482
if use_dbus:
3483
# New standard signal
3484
self.InterfacesAdded(
3485
client.dbus_object_path,
3486
dbus.Dictionary(
3487
{interface: client.GetAll(interface)
3488
for interface in
3489
client._get_all_interface_names()}))
3490
# Old signal
3491
self.ClientAdded(client.dbus_object_path)
3492
3493
def client_removed_signal(self, client):
3494
"""Send the new standard signal and the old signal"""
3495
if use_dbus:
3496
# New standard signal
3497
self.InterfacesRemoved(
3498
client.dbus_object_path,
3499
client._get_all_interface_names())
3500
# Old signal
3501
self.ClientRemoved(client.dbus_object_path,
3502
client.name)
3503
3504
mandos_dbus_service = MandosDBusService()
3505
3506
# Save modules to variables to exempt the modules from being
3507
# unloaded before the function registered with atexit() is run.
3508
mp = multiprocessing
3509
wn = wnull
3510
2092
2093
class MandosDBusServiceTransitional(MandosDBusService):
2094
__metaclass__ = AlternateDBusNamesMetaclass
2095
mandos_dbus_service = MandosDBusServiceTransitional()
2096
3511
2097
def cleanup():
3512
2098
"Cleanup function; run on exit"
3513
if zeroconf:
3514
service.cleanup()
3515
3516
mp.active_children()
3517
wn.close()
3518
if not (tcp_server.clients or client_settings):
3519
return
3520
3521
# Store client before exiting. Secrets are encrypted with key
3522
# based on what config file has. If config file is
3523
# removed/edited, old secret will thus be unrecovable.
3524
clients = {}
3525
with PGPEngine() as pgp:
3526
for client in tcp_server.clients.values():
3527
key = client_settings[client.name]["secret"]
3528
client.encrypted_secret = pgp.encrypt(client.secret,
3529
key)
3530
client_dict = {}
3531
3532
# A list of attributes that can not be pickled
3533
# + secret.
3534
exclude = {"bus", "changedstate", "secret",
3535
"checker", "server_settings"}
3536
for name, typ in inspect.getmembers(dbus.service
3537
.Object):
3538
exclude.add(name)
3539
3540
client_dict["encrypted_secret"] = (client
3541
.encrypted_secret)
3542
for attr in client.client_structure:
3543
if attr not in exclude:
3544
client_dict[attr] = getattr(client, attr)
3545
3546
clients[client.name] = client_dict
3547
del client_settings[client.name]["secret"]
3548
3549
try:
3550
with tempfile.NamedTemporaryFile(
3551
mode='wb',
3552
suffix=".pickle",
3553
prefix='clients-',
3554
dir=os.path.dirname(stored_state_path),
3555
delete=False) as stored_state:
3556
pickle.dump((clients, client_settings), stored_state,
3557
protocol=2)
3558
tempname = stored_state.name
3559
os.rename(tempname, stored_state_path)
3560
except (IOError, OSError) as e:
3561
if not debug:
3562
try:
3563
os.remove(tempname)
3564
except NameError:
3565
pass
3566
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3567
logger.warning("Could not save persistent state: {}"
3568
.format(os.strerror(e.errno)))
3569
else:
3570
logger.warning("Could not save persistent state:",
3571
exc_info=e)
3572
raise
3573
3574
# Delete all clients, and settings from config
2099
service.cleanup()
2100
3575
2101
while tcp_server.clients:
3576
name, client = tcp_server.clients.popitem()
2102
client = tcp_server.clients.pop()
3577
2103
if use_dbus:
3578
2104
client.remove_from_connection()
3579
# Don't signal the disabling
2105
client.disable_hook = None
2106
# Don't signal anything except ClientRemoved
3580
2107
client.disable(quiet=True)
3581
# Emit D-Bus signal for removal
3582
2108
if use_dbus:
3583
mandos_dbus_service.client_removed_signal(client)
3584
client_settings.clear()
3585
2109
# Emit D-Bus signal
2110
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2111
client.name)
2112
3586
2113
atexit.register(cleanup)
3587
3588
for client in tcp_server.clients.values():
2114
2115
for client in tcp_server.clients:
3589
2116
if use_dbus:
3590
# Emit D-Bus signal for adding
3591
mandos_dbus_service.client_added_signal(client)
3592
# Need to initiate checking of clients
3593
if client.enabled:
3594
client.init_checker()
3595
2117
# Emit D-Bus signal
2118
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2119
client.enable()
2120
3596
2121
tcp_server.enable()
3597
2122
tcp_server.server_activate()
3598
2123
3599
2124
# Find out what port we got
3600
if zeroconf:
3601
service.port = tcp_server.socket.getsockname()[1]
2125
service.port = tcp_server.socket.getsockname()[1]
3602
2126
if use_ipv6:
3603
2127
logger.info("Now listening on address %r, port %d,"
3604
" flowinfo %d, scope_id %d",
3605
*tcp_server.socket.getsockname())
2128
" flowinfo %d, scope_id %d"
2129
% tcp_server.socket.getsockname())
3606
2130
else: # IPv4
3607
logger.info("Now listening on address %r, port %d",
3608
*tcp_server.socket.getsockname())
3609
3610
# service.interface = tcp_server.socket.getsockname()[3]
3611
2131
logger.info("Now listening on address %r, port %d"
2132
% tcp_server.socket.getsockname())
2133
2134
#service.interface = tcp_server.socket.getsockname()[3]
2135
3612
2136
try:
3613
if zeroconf:
3614
# From the Avahi example code
3615
try:
3616
service.activate()
3617
except dbus.exceptions.DBusException as error:
3618
logger.critical("D-Bus Exception", exc_info=error)
3619
cleanup()
3620
sys.exit(1)
3621
# End of Avahi example code
3622
3623
GLib.io_add_watch(
3624
GLib.IOChannel.unix_new(tcp_server.fileno()),
3625
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3626
lambda *args, **kwargs: (tcp_server.handle_request
3627
(*args[2:], **kwargs) or True))
3628
2137
# From the Avahi example code
2138
try:
2139
service.activate()
2140
except dbus.exceptions.DBusException as error:
2141
logger.critical("DBusException: %s", error)
2142
cleanup()
2143
sys.exit(1)
2144
# End of Avahi example code
2145
2146
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2147
lambda *args, **kwargs:
2148
(tcp_server.handle_request
2149
(*args[2:], **kwargs) or True))
2150
3629
2151
logger.debug("Starting main loop")
3630
2152
main_loop.run()
3631
2153
except AvahiError as error:
3632
logger.critical("Avahi Error", exc_info=error)
2154
logger.critical("AvahiError: %s", error)
3633
2155
cleanup()
3634
2156
sys.exit(1)
3635
2157
except KeyboardInterrupt:
3640
2162
# Must run before the D-Bus bus name gets deregistered
3641
2163
cleanup()
3642
2164
3643
3644
def should_only_run_tests():
3645
parser = argparse.ArgumentParser(add_help=False)
3646
parser.add_argument("--check", action='store_true')
3647
args, unknown_args = parser.parse_known_args()
3648
run_tests = args.check
3649
if run_tests:
3650
# Remove --check argument from sys.argv
3651
sys.argv[1:] = unknown_args
3652
return run_tests
3653
3654
# Add all tests from doctest strings
3655
def load_tests(loader, tests, none):
3656
import doctest
3657
tests.addTests(doctest.DocTestSuite())
3658
return tests
3659
2165
3660
2166
if __name__ == '__main__':
3661
try:
3662
if should_only_run_tests():
3663
# Call using ./mandos --check [--verbose]
3664
unittest.main()
3665
else:
3666
main()
3667
finally:
3668
logging.shutdown()
2167
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0