To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to mandos
- browse files at revision 505.1.20
- compare with another revision
- download diff
- download tarball
- view history from revision 505.1.20
- Committer: Teddy Hogeborn
- Date: 2011-10-22 00:46:35 UTC
- mto: This revision was merged to the branch mainline in revision 519.
- Revision ID: teddy@recompile.se-20111022004635-3hey47pvet46yccr
* Makefile (run-server): Remove obsolete warning.
* mandos: Clean up and demystify logging. Add time stamp to console
debug log messages.
(AvahiServiceToSyslog): New; only to adjust syslog format.
(AvahiService.rename): Don't touch syslog logger.
* mandos.xml (BUGS): Remove note about timestamps on console log.
* mandos: Clean up and demystify logging. Add time stamp to console
debug log messages.
(AvahiServiceToSyslog): New; only to adjust syslog format.
(AvahiService.rename): Don't touch syslog logger.
* mandos.xml (BUGS): Remove note about timestamps on console log.
- 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
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
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"
83
SO_BINDTODEVICE = None
84
85
86
version = "1.4.1"
148
87
149
88
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
89
syslogger = (logging.handlers.SysLogHandler
90
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
92
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
95
logger.addHandler(syslogger)
96
97
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
99
' [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
330
103
331
104
332
105
class AvahiError(Exception):
333
106
def __init__(self, value, *args, **kwargs):
334
107
self.value = value
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
108
super(AvahiError, self).__init__(value, *args, **kwargs)
109
def __unicode__(self):
110
return unicode(repr(self.value))
338
111
339
112
class AvahiServiceError(AvahiError):
340
113
pass
341
114
342
343
115
class AvahiGroupError(AvahiError):
344
116
pass
345
117
346
118
347
class AvahiService:
119
class AvahiService(object):
348
120
"""An Avahi (Zeroconf) service.
349
121
350
122
Attributes:
351
123
interface: integer; avahi.IF_UNSPEC or an interface index.
352
124
Used to optionally bind to the specified interface.
353
125
name: string; Example: 'Mandos'
354
126
type: string; Example: '_mandos._tcp'.
355
See <https://www.iana.org/assignments/service-names-port-numbers>
127
See <http://www.dns-sd.org/ServiceTypes.html>
356
128
port: integer; what port to announce
357
129
TXT: list of strings; TXT record for the service
358
130
domain: string; Domain to publish on, default to .local if empty.
364
136
server: D-Bus Server
365
137
bus: dbus.SystemBus()
366
138
"""
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):
139
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
140
servicetype = None, port = None, TXT = None,
141
domain = "", host = "", max_renames = 32768,
142
protocol = avahi.PROTO_UNSPEC, bus = None):
379
143
self.interface = interface
380
144
self.name = name
381
145
self.type = servicetype
390
154
self.server = None
391
155
self.bus = bus
392
156
self.entry_group_state_changed_match = None
393
394
def rename(self, remove=True):
157
def rename(self):
395
158
"""Derived from the Avahi example code"""
396
159
if self.rename_count >= self.max_renames:
397
160
logger.critical("No suitable Zeroconf service name found"
398
161
" after %i retries, exiting.",
399
162
self.rename_count)
400
163
raise AvahiServiceError("Too many renames")
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
164
self.name = unicode(self.server
165
.GetAlternativeServiceName(self.name))
404
166
logger.info("Changing Zeroconf service name to %r ...",
405
167
self.name)
406
if remove:
407
self.remove()
168
self.remove()
408
169
try:
409
170
self.add()
410
171
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
172
logger.critical("DBusException: %s", error)
173
self.cleanup()
174
os._exit(1)
175
self.rename_count += 1
420
176
def remove(self):
421
177
"""Derived from the Avahi example code"""
422
178
if self.entry_group_state_changed_match is not None:
424
180
self.entry_group_state_changed_match = None
425
181
if self.group is not None:
426
182
self.group.Reset()
427
428
183
def add(self):
429
184
"""Derived from the Avahi example code"""
430
185
self.remove()
447
202
dbus.UInt16(self.port),
448
203
avahi.string_array_to_txt_array(self.TXT))
449
204
self.group.Commit()
450
451
205
def entry_group_state_changed(self, state, error):
452
206
"""Derived from the Avahi example code"""
453
207
logger.debug("Avahi entry group state change: %i", state)
454
208
455
209
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
210
logger.debug("Zeroconf service established.")
457
211
elif state == avahi.ENTRY_GROUP_COLLISION:
459
213
self.rename()
460
214
elif state == avahi.ENTRY_GROUP_FAILURE:
461
215
logger.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
216
unicode(error))
217
raise AvahiGroupError("State changed: %s"
218
% unicode(error))
465
219
def cleanup(self):
466
220
"""Derived from the Avahi example code"""
467
221
if self.group is not None:
468
222
try:
469
223
self.group.Free()
470
224
except (dbus.exceptions.UnknownMethodException,
471
dbus.exceptions.DBusException):
225
dbus.exceptions.DBusException) as e:
472
226
pass
473
227
self.group = None
474
228
self.remove()
475
476
229
def server_state_changed(self, state, error=None):
477
230
"""Derived from the Avahi example code"""
478
231
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
}
232
bad_states = { avahi.SERVER_INVALID:
233
"Zeroconf server invalid",
234
avahi.SERVER_REGISTERING: None,
235
avahi.SERVER_COLLISION:
236
"Zeroconf server name collision",
237
avahi.SERVER_FAILURE:
238
"Zeroconf server failure" }
485
239
if state in bad_states:
486
240
if bad_states[state] is not None:
487
241
if error is None:
490
244
logger.error(bad_states[state] + ": %r", error)
491
245
self.cleanup()
492
246
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)
247
self.add()
505
248
else:
506
249
if error is None:
507
250
logger.debug("Unknown state: %r", state)
508
251
else:
509
252
logger.debug("Unknown state: %r: %r", state, error)
510
511
253
def activate(self):
512
254
"""Derived from the Avahi example code"""
513
255
if self.server is None:
517
259
follow_name_owner_changes=True),
518
260
avahi.DBUS_INTERFACE_SERVER)
519
261
self.server.connect_to_signal("StateChanged",
520
self.server_state_changed)
262
self.server_state_changed)
521
263
self.server_state_changed(self.server.GetState())
522
264
523
524
265
class AvahiServiceToSyslog(AvahiService):
525
def rename(self, *args, **kwargs):
266
def rename(self):
526
267
"""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)))
268
ret = AvahiService.rename(self)
269
syslogger.setFormatter(logging.Formatter
270
('Mandos (%s) [%%(process)d]:'
271
' %%(levelname)s: %%(message)s'
272
% self.name))
531
273
return ret
532
274
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:
275
def _timedelta_to_milliseconds(td):
276
"Convert a datetime.timedelta() to milliseconds"
277
return ((td.days * 24 * 60 * 60 * 1000)
278
+ (td.seconds * 1000)
279
+ (td.microseconds // 1000))
280
281
class Client(object):
847
282
"""A representation of a client host served by this server.
848
283
849
284
Attributes:
850
approved: bool(); 'None' if not yet approved/disapproved
285
_approved: bool(); 'None' if not yet approved/disapproved
851
286
approval_delay: datetime.timedelta(); Time to wait for approval
852
287
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
288
checker: subprocess.Popen(); a running checker process used
289
to see if the client lives.
290
'None' if no process is running.
291
checker_callback_tag: a gobject event source tag, or None
857
292
checker_command: string; External command which is run to check
858
293
if client lives. %() expansions are done at
859
294
runtime with vars(self) as dict, so that for
860
295
instance %(name)s can be used in the command.
861
checker_initiator_tag: a GLib event source tag, or None
296
checker_initiator_tag: a gobject event source tag, or None
862
297
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
298
current_checker_command: string; current running checker_command
866
disable_initiator_tag: a GLib event source tag, or None
299
disable_hook: If set, called by disable() as disable_hook(self)
300
disable_initiator_tag: a gobject event source tag, or None
867
301
enabled: bool()
868
302
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
303
uniquely identify the client
872
304
host: string; available for use by the checker command
873
305
interval: datetime.timedelta(); How often to start a new checker
874
306
last_approval_request: datetime.datetime(); (UTC) or None
875
307
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
308
last_enabled: datetime.datetime(); (UTC)
882
309
name: string; from the config file, used in log messages and
883
310
D-Bus identifiers
884
311
secret: bytestring; sent verbatim (over TLS) to client
885
312
timeout: datetime.timedelta(); How long from last_checked_ok
886
313
until this client is disabled
887
extended_timeout: extra long timeout when secret has been sent
314
extended_timeout: extra long timeout when password has been sent
888
315
runtime_expansions: Allowed attributes for runtime expansion.
889
316
expires: datetime.datetime(); time (UTC) when a client will be
890
317
disabled, or None
891
server_settings: The server_settings dict from main()
892
318
"""
893
319
894
320
runtime_expansions = ("approval_delay", "approval_duration",
895
"created", "enabled", "expires", "key_id",
896
"fingerprint", "host", "interval",
897
"last_approval_request", "last_checked_ok",
321
"created", "enabled", "fingerprint",
322
"host", "interval", "last_checked_ok",
898
323
"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):
324
325
def timeout_milliseconds(self):
326
"Return the 'timeout' attribute in milliseconds"
327
return _timedelta_to_milliseconds(self.timeout)
328
329
def extended_timeout_milliseconds(self):
330
"Return the 'extended_timeout' attribute in milliseconds"
331
return _timedelta_to_milliseconds(self.extended_timeout)
332
333
def interval_milliseconds(self):
334
"Return the 'interval' attribute in milliseconds"
335
return _timedelta_to_milliseconds(self.interval)
336
337
def approval_delay_milliseconds(self):
338
return _timedelta_to_milliseconds(self.approval_delay)
339
340
def __init__(self, name = None, disable_hook=None, config=None):
341
"""Note: the 'checker' key in 'config' sets the
342
'checker_command' attribute and *not* the 'checker'
343
attribute."""
966
344
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
345
if config is None:
346
config = {}
984
347
logger.debug("Creating client %r", self.name)
985
logger.debug(" Key ID: %s", self.key_id)
348
# Uppercase and remove spaces from fingerprint for later
349
# comparison purposes with return value from the fingerprint()
350
# function
351
self.fingerprint = (config["fingerprint"].upper()
352
.replace(" ", ""))
986
353
logger.debug(" Fingerprint: %s", self.fingerprint)
987
self.created = settings.get("created",
988
datetime.datetime.utcnow())
989
990
# attributes specific for this server instance
354
if "secret" in config:
355
self.secret = config["secret"].decode("base64")
356
elif "secfile" in config:
357
with open(os.path.expanduser(os.path.expandvars
358
(config["secfile"])),
359
"rb") as secfile:
360
self.secret = secfile.read()
361
else:
362
raise TypeError("No secret or secfile for client %s"
363
% self.name)
364
self.host = config.get("host", "")
365
self.created = datetime.datetime.utcnow()
366
self.enabled = False
367
self.last_approval_request = None
368
self.last_enabled = None
369
self.last_checked_ok = None
370
self.timeout = string_to_delta(config["timeout"])
371
self.extended_timeout = string_to_delta(config
372
["extended_timeout"])
373
self.interval = string_to_delta(config["interval"])
374
self.disable_hook = disable_hook
991
375
self.checker = None
992
376
self.checker_initiator_tag = None
993
377
self.disable_initiator_tag = None
378
self.expires = None
994
379
self.checker_callback_tag = None
380
self.checker_command = config["checker"]
995
381
self.current_checker_command = None
996
self.approved = None
382
self.last_connect = None
383
self._approved = None
384
self.approved_by_default = config.get("approved_by_default",
385
True)
997
386
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
387
self.approval_delay = string_to_delta(
388
config["approval_delay"])
389
self.approval_duration = string_to_delta(
390
config["approval_duration"])
391
self.changedstate = (multiprocessing_manager
392
.Condition(multiprocessing_manager
393
.Lock()))
394
1011
395
def send_changedstate(self):
1012
with self.changedstate:
1013
self.changedstate.notify_all()
1014
396
self.changedstate.acquire()
397
self.changedstate.notify_all()
398
self.changedstate.release()
399
1015
400
def enable(self):
1016
401
"""Start this client's checker and timeout hooks"""
1017
402
if getattr(self, "enabled", False):
1018
403
# Already enabled
1019
404
return
405
self.send_changedstate()
406
# Schedule a new checker to be started an 'interval' from now,
407
# and every interval from then on.
408
self.checker_initiator_tag = (gobject.timeout_add
409
(self.interval_milliseconds(),
410
self.start_checker))
411
# Schedule a disable() when 'timeout' has passed
1020
412
self.expires = datetime.datetime.utcnow() + self.timeout
413
self.disable_initiator_tag = (gobject.timeout_add
414
(self.timeout_milliseconds(),
415
self.disable))
1021
416
self.enabled = True
1022
417
self.last_enabled = datetime.datetime.utcnow()
1023
self.init_checker()
1024
self.send_changedstate()
1025
418
# Also start a new checker *right now*.
419
self.start_checker()
420
1026
421
def disable(self, quiet=True):
1027
422
"""Disable this client."""
1028
423
if not getattr(self, "enabled", False):
1029
424
return False
1030
425
if not quiet:
426
self.send_changedstate()
427
if not quiet:
1031
428
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)
429
if getattr(self, "disable_initiator_tag", False):
430
gobject.source_remove(self.disable_initiator_tag)
1034
431
self.disable_initiator_tag = None
1035
432
self.expires = None
1036
if getattr(self, "checker_initiator_tag", None) is not None:
1037
GLib.source_remove(self.checker_initiator_tag)
433
if getattr(self, "checker_initiator_tag", False):
434
gobject.source_remove(self.checker_initiator_tag)
1038
435
self.checker_initiator_tag = None
1039
436
self.stop_checker()
437
if self.disable_hook:
438
self.disable_hook(self)
1040
439
self.enabled = False
1041
if not quiet:
1042
self.send_changedstate()
1043
# Do not run this again if called by a GLib.timeout_add
440
# Do not run this again if called by a gobject.timeout_add
1044
441
return False
1045
442
1046
443
def __del__(self):
444
self.disable_hook = None
1047
445
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):
446
447
def checker_callback(self, pid, condition, command):
1068
448
"""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
449
self.checker_callback_tag = None
1075
450
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:
451
if os.WIFEXITED(condition):
452
exitstatus = os.WEXITSTATUS(condition)
453
if exitstatus == 0:
1081
454
logger.info("Checker for %(name)s succeeded",
1082
455
vars(self))
1083
456
self.checked_ok()
1084
457
else:
1085
logger.info("Checker for %(name)s failed", vars(self))
458
logger.info("Checker for %(name)s failed",
459
vars(self))
1086
460
else:
1087
self.last_checker_status = -1
1088
self.last_checker_signal = -returncode
1089
461
logger.warning("Checker for %(name)s crashed?",
1090
462
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."""
463
464
def checked_ok(self, timeout=None):
465
"""Bump up the timeout for this client.
466
467
This should only be called when the client has been seen,
468
alive and well.
469
"""
1102
470
if timeout is None:
1103
471
timeout = self.timeout
472
self.last_checked_ok = datetime.datetime.utcnow()
1104
473
if self.disable_initiator_tag is not None:
1105
GLib.source_remove(self.disable_initiator_tag)
1106
self.disable_initiator_tag = None
474
gobject.source_remove(self.disable_initiator_tag)
1107
475
if getattr(self, "enabled", False):
1108
self.disable_initiator_tag = GLib.timeout_add(
1109
int(timeout.total_seconds() * 1000), self.disable)
476
self.disable_initiator_tag = (gobject.timeout_add
477
(_timedelta_to_milliseconds
478
(timeout), self.disable))
1110
479
self.expires = datetime.datetime.utcnow() + timeout
1111
480
1112
481
def need_approval(self):
1113
482
self.last_approval_request = datetime.datetime.utcnow()
1114
483
1115
484
def start_checker(self):
1116
485
"""Start a new checker subprocess if one is not running.
1117
486
1118
487
If a checker already exists, leave it running and do
1119
488
nothing."""
1120
489
# 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
490
# did that, then if a checker (for some reason) started
491
# running slowly and taking more than 'interval' time, the
492
# client would inevitably timeout, since no checker would get
493
# a chance to run to completion. If we instead leave running
1125
494
# checkers alone, the checker would have to take more time
1126
495
# than 'timeout' for the client to be disabled, which is as it
1127
496
# 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
497
498
# If a checker exists, make sure it is not a zombie
499
try:
500
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
501
except (AttributeError, OSError) as error:
502
if (isinstance(error, OSError)
503
and error.errno != errno.ECHILD):
504
raise error
505
else:
506
if pid:
507
logger.warning("Checker was a zombie")
508
gobject.source_remove(self.checker_callback_tag)
509
self.checker_callback(pid, status,
510
self.current_checker_command)
1133
511
# Start a new checker if needed
1134
512
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
513
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
514
# In case checker_command has exactly one % operator
515
command = self.checker_command % self.host
516
except TypeError:
517
# Escape attributes for the shell
518
escaped_attrs = dict(
519
(attr,
520
re.escape(unicode(str(getattr(self, attr, "")),
521
errors=
522
'replace')))
523
for attr in
524
self.runtime_expansions)
525
526
try:
527
command = self.checker_command % escaped_attrs
528
except TypeError as error:
529
logger.error('Could not format string "%s":'
530
' %s', self.checker_command, error)
531
return True # Try again later
1146
532
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
533
try:
534
logger.info("Starting checker %r for %s",
535
command, self.name)
536
# We don't need to redirect stdout and stderr, since
537
# in normal mode, that is already done by daemon(),
538
# and in debug mode we don't want to. (Stdin is
539
# always replaced by /dev/null.)
540
self.checker = subprocess.Popen(command,
541
close_fds=True,
542
shell=True, cwd="/")
543
self.checker_callback_tag = (gobject.child_watch_add
544
(self.checker.pid,
545
self.checker_callback,
546
data=command))
547
# The checker may have completed before the gobject
548
# watch was added. Check for this.
549
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
550
if pid:
551
gobject.source_remove(self.checker_callback_tag)
552
self.checker_callback(pid, status, command)
553
except OSError as error:
554
logger.error("Failed to start subprocess: %s",
555
error)
556
# Re-run this periodically if run by gobject.timeout_add
1174
557
return True
1175
558
1176
559
def stop_checker(self):
1177
560
"""Force the checker process, if any, to stop."""
1178
561
if self.checker_callback_tag:
1179
GLib.source_remove(self.checker_callback_tag)
562
gobject.source_remove(self.checker_callback_tag)
1180
563
self.checker_callback_tag = None
1181
564
if getattr(self, "checker", None) is None:
1182
565
return
1183
566
logger.debug("Stopping checker for %(name)s", vars(self))
1184
self.checker.terminate()
567
try:
568
os.kill(self.checker.pid, signal.SIGTERM)
569
#time.sleep(0.5)
570
#if self.checker.poll() is None:
571
# os.kill(self.checker.pid, signal.SIGKILL)
572
except OSError as error:
573
if error.errno != errno.ESRCH: # No such process
574
raise
1185
575
self.checker = None
1186
576
1187
577
1188
def dbus_service_property(dbus_interface,
1189
signature="v",
1190
access="readwrite",
1191
byte_arrays=False):
578
def dbus_service_property(dbus_interface, signature="v",
579
access="readwrite", byte_arrays=False):
1192
580
"""Decorators for marking methods of a DBusObjectWithProperties to
1193
581
become properties on the D-Bus.
1194
582
1195
583
The decorated method will be called with no arguments by "Get"
1196
584
and with one argument by "Set".
1197
585
1198
586
The parameters, where they are supported, are the same as
1199
587
dbus.service.method, except there is only "signature", since the
1200
588
type from Get() and the type sent to Set() is the same.
1203
591
# "Set" method, so we fail early here:
1204
592
if byte_arrays and signature != "ay":
1205
593
raise ValueError("Byte arrays not supported for non-'ay'"
1206
" signature {!r}".format(signature))
1207
594
" signature %r" % signature)
1208
595
def decorator(func):
1209
596
func._dbus_is_property = True
1210
597
func._dbus_interface = dbus_interface
1213
600
func._dbus_name = func.__name__
1214
601
if func._dbus_name.endswith("_dbus_property"):
1215
602
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
603
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
604
return func
1262
605
return decorator
1263
606
1264
607
1265
608
class DBusPropertyException(dbus.exceptions.DBusException):
1266
609
"""A base class for D-Bus property-related exceptions
1267
610
"""
1268
pass
611
def __unicode__(self):
612
return unicode(str(self))
1269
613
1270
614
1271
615
class DBusPropertyAccessException(DBusPropertyException):
1280
624
pass
1281
625
1282
626
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):
627
class DBusObjectWithProperties(dbus.service.Object):
1373
628
"""A D-Bus object with properties.
1374
629
1375
630
Classes inheriting from this can use the dbus_service_property
1376
631
decorator to expose methods as D-Bus properties. It exposes the
1377
632
standard Get(), Set(), and GetAll() methods on the D-Bus.
1378
633
"""
1379
634
635
@staticmethod
636
def _is_dbus_property(obj):
637
return getattr(obj, "_dbus_is_property", False)
638
639
def _get_all_dbus_properties(self):
640
"""Returns a generator of (name, attribute) pairs
641
"""
642
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
643
for cls in self.__class__.__mro__
644
for name, prop in
645
inspect.getmembers(cls, self._is_dbus_property))
646
1380
647
def _get_dbus_property(self, interface_name, property_name):
1381
648
"""Returns a bound method if one exists which is a D-Bus
1382
649
property with the specified name and interface.
1383
650
"""
1384
for cls in self.__class__.__mro__:
1385
for name, value in inspect.getmembers(
1386
cls, self._is_dbus_thing("property")):
651
for cls in self.__class__.__mro__:
652
for name, value in (inspect.getmembers
653
(cls, self._is_dbus_property)):
1387
654
if (value._dbus_name == property_name
1388
655
and value._dbus_interface == interface_name):
1389
656
return value.__get__(self)
1390
657
1391
658
# 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",
659
raise DBusPropertyNotFound(self.dbus_object_path + ":"
660
+ interface_name + "."
661
+ property_name)
662
663
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1406
664
out_signature="v")
1407
665
def Get(self, interface_name, property_name):
1408
666
"""Standard D-Bus property Get() method, see D-Bus standard.
1414
672
if not hasattr(value, "variant_level"):
1415
673
return value
1416
674
return type(value)(value, variant_level=value.variant_level+1)
1417
675
1418
676
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1419
677
def Set(self, interface_name, property_name, value):
1420
678
"""Standard D-Bus property Set() method, see D-Bus standard.
1426
684
# The byte_arrays option is not supported yet on
1427
685
# signatures other than "ay".
1428
686
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))
687
raise ValueError
688
value = dbus.ByteArray(''.join(unichr(byte)
689
for byte in value))
1433
690
prop(value)
1434
1435
@dbus.service.method(dbus.PROPERTIES_IFACE,
1436
in_signature="s",
691
692
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1437
693
out_signature="a{sv}")
1438
694
def GetAll(self, interface_name):
1439
695
"""Standard D-Bus property GetAll() method, see D-Bus
1440
696
standard.
1441
697
1442
698
Note: Will not include properties with access="write".
1443
699
"""
1444
properties = {}
1445
for name, prop in self._get_all_dbus_things("property"):
700
all = {}
701
for name, prop in self._get_all_dbus_properties():
1446
702
if (interface_name
1447
703
and interface_name != prop._dbus_interface):
1448
704
# Interface non-empty but did not match
1452
708
continue
1453
709
value = prop()
1454
710
if not hasattr(value, "variant_level"):
1455
properties[name] = value
711
all[name] = value
1456
712
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
713
all[name] = type(value)(value, variant_level=
714
value.variant_level+1)
715
return dbus.Dictionary(all, signature="sv")
716
1469
717
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1470
718
out_signature="s",
1471
719
path_keyword='object_path',
1472
720
connection_keyword='connection')
1473
721
def Introspect(self, object_path, connection):
1474
"""Overloading of standard D-Bus method.
1475
1476
Inserts property tags and interface annotation tags.
722
"""Standard D-Bus method, overloaded to insert property tags.
1477
723
"""
1478
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1479
object_path,
1480
connection)
724
xmlstring = dbus.service.Object.Introspect(self, object_path,
725
connection)
1481
726
try:
1482
727
document = xml.dom.minidom.parseString(xmlstring)
1483
1484
728
def make_tag(document, name, prop):
1485
729
e = document.createElement("property")
1486
730
e.setAttribute("name", name)
1487
731
e.setAttribute("type", prop._dbus_signature)
1488
732
e.setAttribute("access", prop._dbus_access)
1489
733
return e
1490
1491
734
for if_tag in document.getElementsByTagName("interface"):
1492
# Add property tags
1493
735
for tag in (make_tag(document, name, prop)
1494
736
for name, prop
1495
in self._get_all_dbus_things("property")
737
in self._get_all_dbus_properties()
1496
738
if prop._dbus_interface
1497
739
== if_tag.getAttribute("name")):
1498
740
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
741
# Add the names to the return values for the
1516
742
# "org.freedesktop.DBus.Properties" methods
1517
743
if (if_tag.getAttribute("name")
1532
758
except (AttributeError, xml.dom.DOMException,
1533
759
xml.parsers.expat.ExpatError) as error:
1534
760
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):
761
error)
762
return xmlstring
763
764
765
def datetime_to_dbus (dt, variant_level=0):
1611
766
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1612
767
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).
768
return dbus.String("", variant_level = variant_level)
769
return dbus.String(dt.isoformat(),
770
variant_level=variant_level)
771
772
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
773
.__metaclass__):
774
"""Applied to an empty subclass of a D-Bus object, this metaclass
775
will add additional D-Bus attributes matching a certain pattern.
1639
776
"""
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):
777
def __new__(mcs, name, bases, attr):
778
# Go through all the base classes which could have D-Bus
779
# methods, signals, or properties in them
780
for base in (b for b in bases
781
if issubclass(b, dbus.service.Object)):
782
# Go though all attributes of the base class
783
for attrname, attribute in inspect.getmembers(base):
1648
784
# Ignore non-D-Bus attributes, and D-Bus attributes
1649
785
# with the wrong interface name
1650
786
if (not hasattr(attribute, "_dbus_interface")
1651
or not attribute._dbus_interface.startswith(
1652
orig_interface_name)):
787
or not attribute._dbus_interface
788
.startswith("se.recompile.Mandos")):
1653
789
continue
1654
790
# Create an alternate D-Bus interface name based on
1655
791
# the current name
1656
alt_interface = attribute._dbus_interface.replace(
1657
orig_interface_name, alt_interface_name)
1658
interface_names.add(alt_interface)
792
alt_interface = (attribute._dbus_interface
793
.replace("se.recompile.Mandos",
794
"se.bsnet.fukt.Mandos"))
1659
795
# Is this a D-Bus signal?
1660
796
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(
797
# Extract the original non-method function by
798
# black magic
799
nonmethod_func = (dict(
1665
800
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)
801
attribute.__closure__))["func"]
802
.cell_contents)
1673
803
# Create a new, but exactly alike, function
1674
804
# object, and decorate it to be a new D-Bus signal
1675
805
# 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
806
new_function = (dbus.service.signal
807
(alt_interface,
808
attribute._dbus_signature)
809
(types.FunctionType(
810
nonmethod_func.func_code,
811
nonmethod_func.func_globals,
812
nonmethod_func.func_name,
813
nonmethod_func.func_defaults,
814
nonmethod_func.func_closure)))
1687
815
# 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
816
# old and new functions, so both the old and new
817
# signals gets sent when the function is called
1691
818
def fixscope(func1, func2):
1692
819
"""This function is a scope container to pass
1693
820
func1 and func2 to the "call_both" function
1694
821
outside of its arguments"""
1695
1696
@functools.wraps(func2)
1697
822
def call_both(*args, **kwargs):
1698
823
"""This function will emit two D-Bus
1699
824
signals by calling func1 and func2"""
1700
825
func1(*args, **kwargs)
1701
826
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
827
return call_both
1709
828
# Create the "call_both" function and add it to
1710
829
# the class
1711
attr[attrname] = fixscope(attribute, new_function)
830
attr[attrname] = fixscope(attribute,
831
new_function)
1712
832
# Is this a D-Bus method?
1713
833
elif getattr(attribute, "_dbus_is_method", False):
1714
834
# Create a new, but exactly alike, function
1715
835
# object. Decorate it to be a new D-Bus method
1716
836
# with the alternate D-Bus interface name. Add it
1717
837
# 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
838
attr[attrname] = (dbus.service.method
839
(alt_interface,
840
attribute._dbus_in_signature,
841
attribute._dbus_out_signature)
842
(types.FunctionType
843
(attribute.func_code,
844
attribute.func_globals,
845
attribute.func_name,
846
attribute.func_defaults,
847
attribute.func_closure)))
1730
848
# Is this a D-Bus property?
1731
849
elif getattr(attribute, "_dbus_is_property", False):
1732
850
# Create a new, but exactly alike, function
1733
851
# object, and decorate it to be a new D-Bus
1734
852
# property with the alternate D-Bus interface
1735
853
# 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"})
854
attr[attrname] = (dbus_service_property
855
(alt_interface,
856
attribute._dbus_signature,
857
attribute._dbus_access,
858
attribute
859
._dbus_get_args_options
860
["byte_arrays"])
861
(types.FunctionType
862
(attribute.func_code,
863
attribute.func_globals,
864
attribute.func_name,
865
attribute.func_defaults,
866
attribute.func_closure)))
867
return type.__new__(mcs, name, bases, attr)
868
1788
869
class ClientDBus(Client, DBusObjectWithProperties):
1789
870
"""A Client class using D-Bus
1790
871
1791
872
Attributes:
1792
873
dbus_object_path: dbus.ObjectPath
1793
874
bus: dbus.SystemBus()
1794
875
"""
1795
876
1796
877
runtime_expansions = (Client.runtime_expansions
1797
+ ("dbus_object_path", ))
1798
1799
_interface = "se.recompile.Mandos.Client"
1800
878
+ ("dbus_object_path",))
879
1801
880
# dbus.service.Object doesn't use super(), so we can't either.
1802
1803
def __init__(self, bus=None, *args, **kwargs):
881
882
def __init__(self, bus = None, *args, **kwargs):
883
self._approvals_pending = 0
1804
884
self.bus = bus
1805
885
Client.__init__(self, *args, **kwargs)
1806
886
# Only now, when this client is initialized, can it show up on
1807
887
# the D-Bus
1808
client_object_name = str(self.name).translate(
888
client_object_name = unicode(self.name).translate(
1809
889
{ord("."): ord("_"),
1810
890
ord("-"): ord("_")})
1811
self.dbus_object_path = dbus.ObjectPath(
1812
"/clients/" + client_object_name)
891
self.dbus_object_path = (dbus.ObjectPath
892
("/clients/" + client_object_name))
1813
893
DBusObjectWithProperties.__init__(self, self.bus,
1814
894
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):
895
896
def notifychangeproperty(transform_func,
897
dbus_name, type_func=lambda x: x,
898
variant_level=1):
1821
899
""" Modify a variable so that it's a property which announces
1822
900
its changes to DBus.
1823
901
1828
906
to the D-Bus. Default: no transform
1829
907
variant_level: D-Bus variant level. Default: 1
1830
908
"""
1831
attrname = "_{}".format(dbus_name)
1832
909
attrname = "_{0}".format(dbus_name)
1833
910
def setter(self, value):
1834
911
if hasattr(self, "dbus_object_path"):
1835
912
if (not hasattr(self, attrname) or
1836
913
type_func(getattr(self, attrname, None))
1837
914
!= 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())
915
dbus_value = transform_func(type_func(value),
916
variant_level
917
=variant_level)
918
self.PropertyChanged(dbus.String(dbus_name),
919
dbus_value)
1853
920
setattr(self, attrname, value)
1854
921
1855
922
return property(lambda self: getattr(self, attrname), setter)
1856
923
924
1857
925
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1858
926
approvals_pending = notifychangeproperty(dbus.Boolean,
1859
927
"ApprovalPending",
1860
type_func=bool)
928
type_func = bool)
1861
929
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1862
930
last_enabled = notifychangeproperty(datetime_to_dbus,
1863
931
"LastEnabled")
1864
checker = notifychangeproperty(
1865
dbus.Boolean, "CheckerRunning",
1866
type_func=lambda checker: checker is not None)
932
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
933
type_func = lambda checker:
934
checker is not None)
1867
935
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1868
936
"LastCheckedOK")
1869
last_checker_status = notifychangeproperty(dbus.Int16,
1870
"LastCheckerStatus")
1871
937
last_approval_request = notifychangeproperty(
1872
938
datetime_to_dbus, "LastApprovalRequest")
1873
939
approved_by_default = notifychangeproperty(dbus.Boolean,
1874
940
"ApprovedByDefault")
1875
approval_delay = notifychangeproperty(
1876
dbus.UInt64, "ApprovalDelay",
1877
type_func=lambda td: td.total_seconds() * 1000)
941
approval_delay = notifychangeproperty(dbus.UInt16,
942
"ApprovalDelay",
943
type_func =
944
_timedelta_to_milliseconds)
1878
945
approval_duration = notifychangeproperty(
1879
dbus.UInt64, "ApprovalDuration",
1880
type_func=lambda td: td.total_seconds() * 1000)
946
dbus.UInt16, "ApprovalDuration",
947
type_func = _timedelta_to_milliseconds)
1881
948
host = notifychangeproperty(dbus.String, "Host")
1882
timeout = notifychangeproperty(
1883
dbus.UInt64, "Timeout",
1884
type_func=lambda td: td.total_seconds() * 1000)
949
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
950
type_func =
951
_timedelta_to_milliseconds)
1885
952
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)
953
dbus.UInt16, "ExtendedTimeout",
954
type_func = _timedelta_to_milliseconds)
955
interval = notifychangeproperty(dbus.UInt16,
956
"Interval",
957
type_func =
958
_timedelta_to_milliseconds)
1891
959
checker_command = notifychangeproperty(dbus.String, "Checker")
1892
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1893
invalidate_only=True)
1894
960
1895
961
del notifychangeproperty
1896
962
1897
963
def __del__(self, *args, **kwargs):
1898
964
try:
1899
965
self.remove_from_connection()
1902
968
if hasattr(DBusObjectWithProperties, "__del__"):
1903
969
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1904
970
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:
971
972
def checker_callback(self, pid, condition, command,
973
*args, **kwargs):
974
self.checker_callback_tag = None
975
self.checker = None
976
if os.WIFEXITED(condition):
977
exitstatus = os.WEXITSTATUS(condition)
1913
978
# Emit D-Bus signal
1914
979
self.CheckerCompleted(dbus.Int16(exitstatus),
1915
# This is specific to GNU libC
1916
dbus.Int64(exitstatus << 8),
980
dbus.Int64(condition),
1917
981
dbus.String(command))
1918
982
else:
1919
983
# Emit D-Bus signal
1920
984
self.CheckerCompleted(dbus.Int16(-1),
1921
dbus.Int64(
1922
# This is specific to GNU libC
1923
(exitstatus << 8)
1924
| self.last_checker_signal),
985
dbus.Int64(condition),
1925
986
dbus.String(command))
1926
return ret
1927
987
988
return Client.checker_callback(self, pid, condition, command,
989
*args, **kwargs)
990
1928
991
def start_checker(self, *args, **kwargs):
1929
old_checker_pid = getattr(self.checker, "pid", None)
992
old_checker = self.checker
993
if self.checker is not None:
994
old_checker_pid = self.checker.pid
995
else:
996
old_checker_pid = None
1930
997
r = Client.start_checker(self, *args, **kwargs)
1931
998
# Only if new checker process was started
1932
999
if (self.checker is not None
1934
1001
# Emit D-Bus signal
1935
1002
self.CheckerStarted(self.current_checker_command)
1936
1003
return r
1937
1004
1938
1005
def _reset_approved(self):
1939
self.approved = None
1006
self._approved = None
1940
1007
return False
1941
1008
1942
1009
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
1010
self.send_changedstate()
1947
1948
# D-Bus methods, signals & properties
1949
1950
# Interfaces
1951
1952
# Signals
1953
1011
self._approved = value
1012
gobject.timeout_add(_timedelta_to_milliseconds
1013
(self.approval_duration),
1014
self._reset_approved)
1015
1016
1017
## D-Bus methods, signals & properties
1018
_interface = "se.recompile.Mandos.Client"
1019
1020
## Signals
1021
1954
1022
# CheckerCompleted - signal
1955
1023
@dbus.service.signal(_interface, signature="nxs")
1956
1024
def CheckerCompleted(self, exitcode, waitstatus, command):
1957
1025
"D-Bus signal"
1958
1026
pass
1959
1027
1960
1028
# CheckerStarted - signal
1961
1029
@dbus.service.signal(_interface, signature="s")
1962
1030
def CheckerStarted(self, command):
1963
1031
"D-Bus signal"
1964
1032
pass
1965
1033
1966
1034
# PropertyChanged - signal
1967
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1968
1035
@dbus.service.signal(_interface, signature="sv")
1969
1036
def PropertyChanged(self, property, value):
1970
1037
"D-Bus signal"
1971
1038
pass
1972
1039
1973
1040
# GotSecret - signal
1974
1041
@dbus.service.signal(_interface)
1975
1042
def GotSecret(self):
1978
1045
server to mandos-client
1979
1046
"""
1980
1047
pass
1981
1048
1982
1049
# Rejected - signal
1983
1050
@dbus.service.signal(_interface, signature="s")
1984
1051
def Rejected(self, reason):
1985
1052
"D-Bus signal"
1986
1053
pass
1987
1054
1988
1055
# NeedApproval - signal
1989
1056
@dbus.service.signal(_interface, signature="tb")
1990
1057
def NeedApproval(self, timeout, default):
1991
1058
"D-Bus signal"
1992
1059
return self.need_approval()
1993
1994
# Methods
1995
1060
1061
## Methods
1062
1996
1063
# Approve - method
1997
1064
@dbus.service.method(_interface, in_signature="b")
1998
1065
def Approve(self, value):
1999
1066
self.approve(value)
2000
1067
2001
1068
# CheckedOK - method
2002
1069
@dbus.service.method(_interface)
2003
1070
def CheckedOK(self):
2004
1071
self.checked_ok()
2005
1072
2006
1073
# Enable - method
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2008
1074
@dbus.service.method(_interface)
2009
1075
def Enable(self):
2010
1076
"D-Bus method"
2011
1077
self.enable()
2012
1078
2013
1079
# StartChecker - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2015
1080
@dbus.service.method(_interface)
2016
1081
def StartChecker(self):
2017
1082
"D-Bus method"
2018
1083
self.start_checker()
2019
1084
2020
1085
# Disable - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2022
1086
@dbus.service.method(_interface)
2023
1087
def Disable(self):
2024
1088
"D-Bus method"
2025
1089
self.disable()
2026
1090
2027
1091
# StopChecker - method
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2029
1092
@dbus.service.method(_interface)
2030
1093
def StopChecker(self):
2031
1094
self.stop_checker()
2032
2033
# Properties
2034
1095
1096
## Properties
1097
2035
1098
# ApprovalPending - property
2036
1099
@dbus_service_property(_interface, signature="b", access="read")
2037
1100
def ApprovalPending_dbus_property(self):
2038
1101
return dbus.Boolean(bool(self.approvals_pending))
2039
1102
2040
1103
# ApprovedByDefault - property
2041
@dbus_service_property(_interface,
2042
signature="b",
1104
@dbus_service_property(_interface, signature="b",
2043
1105
access="readwrite")
2044
1106
def ApprovedByDefault_dbus_property(self, value=None):
2045
1107
if value is None: # get
2046
1108
return dbus.Boolean(self.approved_by_default)
2047
1109
self.approved_by_default = bool(value)
2048
1110
2049
1111
# ApprovalDelay - property
2050
@dbus_service_property(_interface,
2051
signature="t",
1112
@dbus_service_property(_interface, signature="t",
2052
1113
access="readwrite")
2053
1114
def ApprovalDelay_dbus_property(self, value=None):
2054
1115
if value is None: # get
2055
return dbus.UInt64(self.approval_delay.total_seconds()
2056
* 1000)
1116
return dbus.UInt64(self.approval_delay_milliseconds())
2057
1117
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2058
1118
2059
1119
# ApprovalDuration - property
2060
@dbus_service_property(_interface,
2061
signature="t",
1120
@dbus_service_property(_interface, signature="t",
2062
1121
access="readwrite")
2063
1122
def ApprovalDuration_dbus_property(self, value=None):
2064
1123
if value is None: # get
2065
return dbus.UInt64(self.approval_duration.total_seconds()
2066
* 1000)
1124
return dbus.UInt64(_timedelta_to_milliseconds(
1125
self.approval_duration))
2067
1126
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2068
1127
2069
1128
# Name - property
2070
@dbus_annotations(
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2072
1129
@dbus_service_property(_interface, signature="s", access="read")
2073
1130
def Name_dbus_property(self):
2074
1131
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
1132
2083
1133
# Fingerprint - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
1134
@dbus_service_property(_interface, signature="s", access="read")
2087
1135
def Fingerprint_dbus_property(self):
2088
1136
return dbus.String(self.fingerprint)
2089
1137
2090
1138
# Host - property
2091
@dbus_service_property(_interface,
2092
signature="s",
1139
@dbus_service_property(_interface, signature="s",
2093
1140
access="readwrite")
2094
1141
def Host_dbus_property(self, value=None):
2095
1142
if value is None: # get
2096
1143
return dbus.String(self.host)
2097
self.host = str(value)
2098
1144
self.host = value
1145
2099
1146
# Created - property
2100
@dbus_annotations(
2101
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2102
1147
@dbus_service_property(_interface, signature="s", access="read")
2103
1148
def Created_dbus_property(self):
2104
return datetime_to_dbus(self.created)
2105
1149
return dbus.String(datetime_to_dbus(self.created))
1150
2106
1151
# LastEnabled - property
2107
1152
@dbus_service_property(_interface, signature="s", access="read")
2108
1153
def LastEnabled_dbus_property(self):
2109
1154
return datetime_to_dbus(self.last_enabled)
2110
1155
2111
1156
# Enabled - property
2112
@dbus_service_property(_interface,
2113
signature="b",
1157
@dbus_service_property(_interface, signature="b",
2114
1158
access="readwrite")
2115
1159
def Enabled_dbus_property(self, value=None):
2116
1160
if value is None: # get
2119
1163
self.enable()
2120
1164
else:
2121
1165
self.disable()
2122
1166
2123
1167
# LastCheckedOK - property
2124
@dbus_service_property(_interface,
2125
signature="s",
1168
@dbus_service_property(_interface, signature="s",
2126
1169
access="readwrite")
2127
1170
def LastCheckedOK_dbus_property(self, value=None):
2128
1171
if value is not None:
2129
1172
self.checked_ok()
2130
1173
return
2131
1174
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
1175
2138
1176
# Expires - property
2139
1177
@dbus_service_property(_interface, signature="s", access="read")
2140
1178
def Expires_dbus_property(self):
2141
1179
return datetime_to_dbus(self.expires)
2142
1180
2143
1181
# LastApprovalRequest - property
2144
1182
@dbus_service_property(_interface, signature="s", access="read")
2145
1183
def LastApprovalRequest_dbus_property(self):
2146
1184
return datetime_to_dbus(self.last_approval_request)
2147
1185
2148
1186
# Timeout - property
2149
@dbus_service_property(_interface,
2150
signature="t",
1187
@dbus_service_property(_interface, signature="t",
2151
1188
access="readwrite")
2152
1189
def Timeout_dbus_property(self, value=None):
2153
1190
if value is None: # get
2154
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2155
old_timeout = self.timeout
1191
return dbus.UInt64(self.timeout_milliseconds())
2156
1192
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
1193
if getattr(self, "disable_initiator_tag", None) is None:
1194
return
1195
# Reschedule timeout
1196
gobject.source_remove(self.disable_initiator_tag)
1197
self.disable_initiator_tag = None
1198
self.expires = None
1199
time_to_die = _timedelta_to_milliseconds((self
1200
.last_checked_ok
1201
+ self.timeout)
1202
- datetime.datetime
1203
.utcnow())
1204
if time_to_die <= 0:
1205
# The timeout has passed
1206
self.disable()
1207
else:
1208
self.expires = (datetime.datetime.utcnow()
1209
+ datetime.timedelta(milliseconds =
1210
time_to_die))
1211
self.disable_initiator_tag = (gobject.timeout_add
1212
(time_to_die, self.disable))
1213
2173
1214
# ExtendedTimeout - property
2174
@dbus_service_property(_interface,
2175
signature="t",
1215
@dbus_service_property(_interface, signature="t",
2176
1216
access="readwrite")
2177
1217
def ExtendedTimeout_dbus_property(self, value=None):
2178
1218
if value is None: # get
2179
return dbus.UInt64(self.extended_timeout.total_seconds()
2180
* 1000)
1219
return dbus.UInt64(self.extended_timeout_milliseconds())
2181
1220
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2182
1221
2183
1222
# Interval - property
2184
@dbus_service_property(_interface,
2185
signature="t",
1223
@dbus_service_property(_interface, signature="t",
2186
1224
access="readwrite")
2187
1225
def Interval_dbus_property(self, value=None):
2188
1226
if value is None: # get
2189
return dbus.UInt64(self.interval.total_seconds() * 1000)
1227
return dbus.UInt64(self.interval_milliseconds())
2190
1228
self.interval = datetime.timedelta(0, 0, 0, value)
2191
1229
if getattr(self, "checker_initiator_tag", None) is None:
2192
1230
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
1231
# Reschedule checker run
1232
gobject.source_remove(self.checker_initiator_tag)
1233
self.checker_initiator_tag = (gobject.timeout_add
1234
(value, self.start_checker))
1235
self.start_checker() # Start one now, too
1236
2200
1237
# Checker - property
2201
@dbus_service_property(_interface,
2202
signature="s",
1238
@dbus_service_property(_interface, signature="s",
2203
1239
access="readwrite")
2204
1240
def Checker_dbus_property(self, value=None):
2205
1241
if value is None: # get
2206
1242
return dbus.String(self.checker_command)
2207
self.checker_command = str(value)
2208
1243
self.checker_command = value
1244
2209
1245
# CheckerRunning - property
2210
@dbus_service_property(_interface,
2211
signature="b",
1246
@dbus_service_property(_interface, signature="b",
2212
1247
access="readwrite")
2213
1248
def CheckerRunning_dbus_property(self, value=None):
2214
1249
if value is None: # get
2217
1252
self.start_checker()
2218
1253
else:
2219
1254
self.stop_checker()
2220
1255
2221
1256
# ObjectPath - property
2222
@dbus_annotations(
2223
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2224
"org.freedesktop.DBus.Deprecated": "true"})
2225
1257
@dbus_service_property(_interface, signature="o", access="read")
2226
1258
def ObjectPath_dbus_property(self):
2227
return self.dbus_object_path # is already a dbus.ObjectPath
2228
1259
return self.dbus_object_path # is already a dbus.ObjectPath
1260
2229
1261
# 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)
1262
@dbus_service_property(_interface, signature="ay",
1263
access="write", byte_arrays=True)
2237
1264
def Secret_dbus_property(self, value):
2238
self.secret = bytes(value)
2239
1265
self.secret = str(value)
1266
2240
1267
del _interface
2241
1268
2242
1269
2243
class ProxyClient:
2244
def __init__(self, child_pipe, key_id, fpr, address):
1270
class ProxyClient(object):
1271
def __init__(self, child_pipe, fpr, address):
2245
1272
self._pipe = child_pipe
2246
self._pipe.send(('init', key_id, fpr, address))
1273
self._pipe.send(('init', fpr, address))
2247
1274
if not self._pipe.recv():
2248
raise KeyError(key_id or fpr)
2249
1275
raise KeyError()
1276
2250
1277
def __getattribute__(self, name):
2251
if name == '_pipe':
1278
if(name == '_pipe'):
2252
1279
return super(ProxyClient, self).__getattribute__(name)
2253
1280
self._pipe.send(('getattr', name))
2254
1281
data = self._pipe.recv()
2255
1282
if data[0] == 'data':
2256
1283
return data[1]
2257
1284
if data[0] == 'function':
2258
2259
1285
def func(*args, **kwargs):
2260
1286
self._pipe.send(('funcall', name, args, kwargs))
2261
1287
return self._pipe.recv()[1]
2262
2263
1288
return func
2264
1289
2265
1290
def __setattr__(self, name, value):
2266
if name == '_pipe':
1291
if(name == '_pipe'):
2267
1292
return super(ProxyClient, self).__setattr__(name, value)
2268
1293
self._pipe.send(('setattr', name, value))
2269
1294
1295
class ClientDBusTransitional(ClientDBus):
1296
__metaclass__ = AlternateDBusNamesMetaclass
2270
1297
2271
1298
class ClientHandler(socketserver.BaseRequestHandler, object):
2272
1299
"""A class to handle client connections.
2273
1300
2274
1301
Instantiated once for each connection to handle it.
2275
1302
Note: This will run in its own forked process."""
2276
1303
2277
1304
def handle(self):
2278
1305
with contextlib.closing(self.server.child_pipe) as child_pipe:
2279
1306
logger.info("TCP connection from: %s",
2280
str(self.client_address))
1307
unicode(self.client_address))
2281
1308
logger.debug("Pipe FD: %d",
2282
1309
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"))
1310
1311
session = (gnutls.connection
1312
.ClientSession(self.request,
1313
gnutls.connection
1314
.X509Credentials()))
1315
1316
# Note: gnutls.connection.X509Credentials is really a
1317
# generic GnuTLS certificate credentials object so long as
1318
# no X.509 keys are added to it. Therefore, we can use it
1319
# here despite using OpenPGP certificates.
1320
1321
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1322
# "+AES-256-CBC", "+SHA1",
1323
# "+COMP-NULL", "+CTYPE-OPENPGP",
1324
# "+DHE-DSS"))
2290
1325
# Use a fallback default, since this MUST be set.
2291
1326
priority = self.server.gnutls_priority
2292
1327
if priority is None:
2293
1328
priority = "NORMAL"
2294
gnutls.priority_set_direct(session._c_object,
2295
priority.encode("utf-8"),
2296
None)
2297
1329
(gnutls.library.functions
1330
.gnutls_priority_set_direct(session._c_object,
1331
priority, None))
1332
2298
1333
# Start communication using the Mandos protocol
2299
1334
# Get protocol number
2300
1335
line = self.request.makefile().readline()
2301
1336
logger.debug("Protocol version: %r", line)
2302
1337
try:
2303
1338
if int(line.strip().split()[0]) > 1:
2304
raise RuntimeError(line)
1339
raise RuntimeError
2305
1340
except (ValueError, IndexError, RuntimeError) as error:
2306
1341
logger.error("Unknown protocol version: %s", error)
2307
1342
return
2308
1343
2309
1344
# Start GnuTLS connection
2310
1345
try:
2311
1346
session.handshake()
2312
except gnutls.Error as error:
1347
except gnutls.errors.GNUTLSError as error:
2313
1348
logger.warning("Handshake failed: %s", error)
2314
1349
# Do not run session.bye() here: the session is not
2315
1350
# established. Just abandon the request.
2316
1351
return
2317
1352
logger.debug("Handshake succeeded")
2318
1353
2319
1354
approval_required = False
2320
1355
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,
1356
try:
1357
fpr = self.fingerprint(self.peer_certificate
1358
(session))
1359
except (TypeError,
1360
gnutls.errors.GNUTLSError) as error:
1361
logger.warning("Bad certificate: %s", error)
1362
return
1363
logger.debug("Fingerprint: %s", fpr)
1364
1365
try:
1366
client = ProxyClient(child_pipe, fpr,
2343
1367
self.client_address)
2344
1368
except KeyError:
2345
1369
return
2346
1370
2347
1371
if client.approval_delay:
2348
1372
delay = client.approval_delay
2349
1373
client.approvals_pending += 1
2350
1374
approval_required = True
2351
1375
2352
1376
while True:
2353
1377
if not client.enabled:
2354
1378
logger.info("Client %s is disabled",
2355
client.name)
1379
client.name)
2356
1380
if self.server.use_dbus:
2357
1381
# Emit D-Bus signal
2358
1382
client.Rejected("Disabled")
2359
1383
return
2360
2361
if client.approved or not client.approval_delay:
2362
# We are approved or approval is disabled
1384
1385
if client._approved or not client.approval_delay:
1386
#We are approved or approval is disabled
2363
1387
break
2364
elif client.approved is None:
1388
elif client._approved is None:
2365
1389
logger.info("Client %s needs approval",
2366
1390
client.name)
2367
1391
if self.server.use_dbus:
2368
1392
# Emit D-Bus signal
2369
1393
client.NeedApproval(
2370
client.approval_delay.total_seconds()
2371
* 1000, client.approved_by_default)
1394
client.approval_delay_milliseconds(),
1395
client.approved_by_default)
2372
1396
else:
2373
1397
logger.warning("Client %s was not approved",
2374
1398
client.name)
2376
1400
# Emit D-Bus signal
2377
1401
client.Rejected("Denied")
2378
1402
return
2379
2380
# wait until timeout or approved
1403
1404
#wait until timeout or approved
2381
1405
time = datetime.datetime.now()
2382
1406
client.changedstate.acquire()
2383
client.changedstate.wait(delay.total_seconds())
1407
(client.changedstate.wait
1408
(float(client._timedelta_to_milliseconds(delay)
1409
/ 1000)))
2384
1410
client.changedstate.release()
2385
1411
time2 = datetime.datetime.now()
2386
1412
if (time2 - time) >= delay:
2396
1422
break
2397
1423
else:
2398
1424
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
1425
1426
sent_size = 0
1427
while sent_size < len(client.secret):
1428
try:
1429
sent = session.send(client.secret[sent_size:])
1430
except gnutls.errors.GNUTLSError as error:
1431
logger.warning("gnutls send failed")
1432
return
1433
logger.debug("Sent: %d, remaining: %d",
1434
sent, len(client.secret)
1435
- (sent_size + sent))
1436
sent_size += sent
1437
2407
1438
logger.info("Sending secret to %s", client.name)
2408
1439
# bump the timeout using extended_timeout
2409
client.bump_timeout(client.extended_timeout)
1440
client.checked_ok(client.extended_timeout)
2410
1441
if self.server.use_dbus:
2411
1442
# Emit D-Bus signal
2412
1443
client.GotSecret()
2413
1444
2414
1445
finally:
2415
1446
if approval_required:
2416
1447
client.approvals_pending -= 1
2417
1448
try:
2418
1449
session.bye()
2419
except gnutls.Error as error:
2420
logger.warning("GnuTLS bye failed",
2421
exc_info=error)
2422
1450
except gnutls.errors.GNUTLSError as error:
1451
logger.warning("GnuTLS bye failed")
1452
2423
1453
@staticmethod
2424
1454
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""
1455
"Return the peer's OpenPGP certificate as a bytestring"
1456
# If not an OpenPGP certificate...
1457
if (gnutls.library.functions
1458
.gnutls_certificate_type_get(session._c_object)
1459
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1460
# ...do the normal thing
1461
return session.peer_certificate
2441
1462
list_size = ctypes.c_uint(1)
2442
cert_list = (gnutls.certificate_get_peers
1463
cert_list = (gnutls.library.functions
1464
.gnutls_certificate_get_peers
2443
1465
(session._c_object, ctypes.byref(list_size)))
2444
1466
if not bool(cert_list) and list_size.value != 0:
2445
raise gnutls.Error("error getting peer certificate")
1467
raise gnutls.errors.GNUTLSError("error getting peer"
1468
" certificate")
2446
1469
if list_size.value == 0:
2447
1470
return None
2448
1471
cert = cert_list[0]
2449
1472
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
1473
2485
1474
@staticmethod
2486
1475
def fingerprint(openpgp):
2487
1476
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2488
1477
# 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)))
1478
datum = (gnutls.library.types
1479
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1480
ctypes.POINTER
1481
(ctypes.c_ubyte)),
1482
ctypes.c_uint(len(openpgp))))
2493
1483
# New empty GnuTLS certificate
2494
crt = gnutls.openpgp_crt_t()
2495
gnutls.openpgp_crt_init(ctypes.byref(crt))
1484
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1485
(gnutls.library.functions
1486
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2496
1487
# Import the OpenPGP public key into the certificate
2497
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2498
gnutls.OPENPGP_FMT_RAW)
1488
(gnutls.library.functions
1489
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1490
gnutls.library.constants
1491
.GNUTLS_OPENPGP_FMT_RAW))
2499
1492
# Verify the self signature in the key
2500
1493
crtverify = ctypes.c_uint()
2501
gnutls.openpgp_crt_verify_self(crt, 0,
2502
ctypes.byref(crtverify))
1494
(gnutls.library.functions
1495
.gnutls_openpgp_crt_verify_self(crt, 0,
1496
ctypes.byref(crtverify)))
2503
1497
if crtverify.value != 0:
2504
gnutls.openpgp_crt_deinit(crt)
2505
raise gnutls.CertificateSecurityError(code
2506
=crtverify.value)
1498
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1499
raise (gnutls.errors.CertificateSecurityError
1500
("Verify failed"))
2507
1501
# New buffer for the fingerprint
2508
1502
buf = ctypes.create_string_buffer(20)
2509
1503
buf_len = ctypes.c_size_t()
2510
1504
# Get the fingerprint from the certificate into the buffer
2511
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2512
ctypes.byref(buf_len))
1505
(gnutls.library.functions
1506
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1507
ctypes.byref(buf_len)))
2513
1508
# Deinit the certificate
2514
gnutls.openpgp_crt_deinit(crt)
1509
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2515
1510
# Convert the buffer to a Python bytestring
2516
1511
fpr = ctypes.string_at(buf, buf_len.value)
2517
1512
# Convert the bytestring to hexadecimal notation
2518
hex_fpr = binascii.hexlify(fpr).upper()
1513
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2519
1514
return hex_fpr
2520
1515
2521
1516
2522
class MultiprocessingMixIn:
1517
class MultiprocessingMixIn(object):
2523
1518
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2524
2525
1519
def sub_process_main(self, request, address):
2526
1520
try:
2527
1521
self.finish_request(request, address)
2528
except Exception:
1522
except:
2529
1523
self.handle_error(request, address)
2530
1524
self.close_request(request)
2531
1525
2532
1526
def process_request(self, request, address):
2533
1527
"""Start a new process to process the request."""
2534
proc = multiprocessing.Process(target=self.sub_process_main,
2535
args=(request, address))
1528
proc = multiprocessing.Process(target = self.sub_process_main,
1529
args = (request,
1530
address))
2536
1531
proc.start()
2537
1532
return proc
2538
1533
2539
1534
2540
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1535
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2541
1536
""" adds a pipe to the MixIn """
2542
2543
1537
def process_request(self, request, client_address):
2544
1538
"""Overrides and wraps the original process_request().
2545
1539
2546
1540
This function creates a new pipe in self.pipe
2547
1541
"""
2548
1542
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2549
1543
2550
1544
proc = MultiprocessingMixIn.process_request(self, request,
2551
1545
client_address)
2552
1546
self.child_pipe.close()
2553
1547
self.add_pipe(parent_pipe, proc)
2554
1548
2555
1549
def add_pipe(self, parent_pipe, proc):
2556
1550
"""Dummy function; override as necessary"""
2557
raise NotImplementedError()
1551
raise NotImplementedError
2558
1552
2559
1553
2560
1554
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2561
socketserver.TCPServer):
1555
socketserver.TCPServer, object):
2562
1556
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2563
1557
2564
1558
Attributes:
2565
1559
enabled: Boolean; whether this server is activated yet
2566
1560
interface: None or a network interface name (string)
2567
1561
use_ipv6: Boolean; to use IPv6 or not
2568
1562
"""
2569
2570
1563
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
"""
1564
interface=None, use_ipv6=True):
2577
1565
self.interface = interface
2578
1566
if use_ipv6:
2579
1567
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
1568
socketserver.TCPServer.__init__(self, server_address,
2608
1569
RequestHandlerClass)
2609
2610
1570
def server_bind(self):
2611
1571
"""This overrides the normal server_bind() function
2612
1572
to bind to an interface if one was specified, and also NOT to
2613
1573
bind to an address or port if they were not specified."""
2614
global SO_BINDTODEVICE
2615
1574
if self.interface is not None:
2616
1575
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
1576
logger.error("SO_BINDTODEVICE does not exist;"
1577
" cannot bind to interface %s",
1578
self.interface)
1579
else:
1580
try:
1581
self.socket.setsockopt(socket.SOL_SOCKET,
1582
SO_BINDTODEVICE,
1583
str(self.interface
1584
+ '\0'))
1585
except socket.error as error:
1586
if error[0] == errno.EPERM:
1587
logger.error("No permission to"
1588
" bind to interface %s",
1589
self.interface)
1590
elif error[0] == errno.ENOPROTOOPT:
1591
logger.error("SO_BINDTODEVICE not available;"
1592
" cannot bind to interface %s",
1593
self.interface)
1594
else:
1595
raise
2638
1596
# Only bind(2) the socket if we really need to.
2639
1597
if self.server_address[0] or self.server_address[1]:
2640
if self.server_address[1]:
2641
self.allow_reuse_address = True
2642
1598
if not self.server_address[0]:
2643
1599
if self.address_family == socket.AF_INET6:
2644
any_address = "::" # in6addr_any
1600
any_address = "::" # in6addr_any
2645
1601
else:
2646
any_address = "0.0.0.0" # INADDR_ANY
1602
any_address = socket.INADDR_ANY
2647
1603
self.server_address = (any_address,
2648
1604
self.server_address[1])
2649
1605
elif not self.server_address[1]:
2650
self.server_address = (self.server_address[0], 0)
1606
self.server_address = (self.server_address[0],
1607
0)
2651
1608
# if self.interface:
2652
1609
# self.server_address = (self.server_address[0],
2653
1610
# 0, # port
2659
1616
2660
1617
class MandosServer(IPv6_TCPServer):
2661
1618
"""Mandos server.
2662
1619
2663
1620
Attributes:
2664
1621
clients: set of Client objects
2665
1622
gnutls_priority GnuTLS priority string
2666
1623
use_dbus: Boolean; to emit D-Bus signals or not
2667
2668
Assumes a GLib.MainLoop event loop.
1624
1625
Assumes a gobject.MainLoop event loop.
2669
1626
"""
2670
2671
1627
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):
1628
interface=None, use_ipv6=True, clients=None,
1629
gnutls_priority=None, use_dbus=True):
2678
1630
self.enabled = False
2679
1631
self.clients = clients
2680
1632
if self.clients is None:
2681
self.clients = {}
1633
self.clients = set()
2682
1634
self.use_dbus = use_dbus
2683
1635
self.gnutls_priority = gnutls_priority
2684
1636
IPv6_TCPServer.__init__(self, server_address,
2685
1637
RequestHandlerClass,
2686
interface=interface,
2687
use_ipv6=use_ipv6,
2688
socketfd=socketfd)
2689
1638
interface = interface,
1639
use_ipv6 = use_ipv6)
2690
1640
def server_activate(self):
2691
1641
if self.enabled:
2692
1642
return socketserver.TCPServer.server_activate(self)
2693
1643
2694
1644
def enable(self):
2695
1645
self.enabled = True
2696
1646
2697
1647
def add_pipe(self, parent_pipe, proc):
2698
1648
# 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,
2709
client_object=None):
1649
gobject.io_add_watch(parent_pipe.fileno(),
1650
gobject.IO_IN | gobject.IO_HUP,
1651
functools.partial(self.handle_ipc,
1652
parent_pipe =
1653
parent_pipe,
1654
proc = proc))
1655
1656
def handle_ipc(self, source, condition, parent_pipe=None,
1657
proc = None, client_object=None):
1658
condition_names = {
1659
gobject.IO_IN: "IN", # There is data to read.
1660
gobject.IO_OUT: "OUT", # Data can be written (without
1661
# blocking).
1662
gobject.IO_PRI: "PRI", # There is urgent data to read.
1663
gobject.IO_ERR: "ERR", # Error condition.
1664
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1665
# broken, usually for pipes and
1666
# sockets).
1667
}
1668
conditions_string = ' | '.join(name
1669
for cond, name in
1670
condition_names.iteritems()
1671
if cond & condition)
2710
1672
# error, or the other end of multiprocessing.Pipe has closed
2711
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1673
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2712
1674
# Wait for other process to exit
2713
1675
proc.join()
2714
1676
return False
2715
1677
2716
1678
# Read a request from the child
2717
1679
request = parent_pipe.recv()
2718
1680
command = request[0]
2719
1681
2720
1682
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:
1683
fpr = request[1]
1684
address = request[2]
1685
1686
for c in self.clients:
1687
if c.fingerprint == fpr:
2732
1688
client = c
2733
1689
break
2734
1690
else:
2735
logger.info("Client not found for key ID: %s, address"
2736
": %s", key_id or fpr, address)
1691
logger.info("Client not found for fingerprint: %s, ad"
1692
"dress: %s", fpr, address)
2737
1693
if self.use_dbus:
2738
1694
# Emit D-Bus signal
2739
mandos_dbus_service.ClientNotFound(key_id or fpr,
1695
mandos_dbus_service.ClientNotFound(fpr,
2740
1696
address[0])
2741
1697
parent_pipe.send(False)
2742
1698
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))
1699
1700
gobject.io_add_watch(parent_pipe.fileno(),
1701
gobject.IO_IN | gobject.IO_HUP,
1702
functools.partial(self.handle_ipc,
1703
parent_pipe =
1704
parent_pipe,
1705
proc = proc,
1706
client_object =
1707
client))
2751
1708
parent_pipe.send(True)
2752
1709
# remove the old hook in favor of the new above hook on
2753
1710
# same fileno
2756
1713
funcname = request[1]
2757
1714
args = request[2]
2758
1715
kwargs = request[3]
2759
1716
2760
1717
parent_pipe.send(('data', getattr(client_object,
2761
1718
funcname)(*args,
2762
**kwargs)))
2763
1719
**kwargs)))
1720
2764
1721
if command == 'getattr':
2765
1722
attrname = request[1]
2766
if isinstance(client_object.__getattribute__(attrname),
2767
collections.abc.Callable):
2768
parent_pipe.send(('function', ))
1723
if callable(client_object.__getattribute__(attrname)):
1724
parent_pipe.send(('function',))
2769
1725
else:
2770
parent_pipe.send((
2771
'data', client_object.__getattribute__(attrname)))
2772
1726
parent_pipe.send(('data', client_object
1727
.__getattribute__(attrname)))
1728
2773
1729
if command == 'setattr':
2774
1730
attrname = request[1]
2775
1731
value = request[2]
2776
1732
setattr(client_object, attrname, value)
2777
1733
2778
1734
return True
2779
1735
2780
1736
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
1737
def string_to_delta(interval):
2881
1738
"""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
1739
1740
>>> string_to_delta('7d')
1741
datetime.timedelta(7)
1742
>>> string_to_delta('60s')
1743
datetime.timedelta(0, 60)
1744
>>> string_to_delta('60m')
1745
datetime.timedelta(0, 3600)
1746
>>> string_to_delta('24h')
1747
datetime.timedelta(1)
1748
>>> string_to_delta('1w')
1749
datetime.timedelta(7)
1750
>>> string_to_delta('5m 30s')
1751
datetime.timedelta(0, 330)
2895
1752
"""
2896
2897
try:
2898
return rfc3339_duration_to_delta(interval)
2899
except ValueError:
2900
pass
2901
2902
1753
timevalue = datetime.timedelta(0)
2903
1754
for s in interval.split():
2904
1755
try:
2905
suffix = s[-1]
1756
suffix = unicode(s[-1])
2906
1757
value = int(s[:-1])
2907
1758
if suffix == "d":
2908
1759
delta = datetime.timedelta(value)
2915
1766
elif suffix == "w":
2916
1767
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2917
1768
else:
2918
raise ValueError("Unknown suffix {!r}".format(suffix))
2919
except IndexError as e:
1769
raise ValueError("Unknown suffix %r" % suffix)
1770
except (ValueError, IndexError) as e:
2920
1771
raise ValueError(*(e.args))
2921
1772
timevalue += delta
2922
1773
return timevalue
2923
1774
2924
1775
2925
def daemon(nochdir=False, noclose=False):
1776
def if_nametoindex(interface):
1777
"""Call the C function if_nametoindex(), or equivalent
1778
1779
Note: This function cannot accept a unicode string."""
1780
global if_nametoindex
1781
try:
1782
if_nametoindex = (ctypes.cdll.LoadLibrary
1783
(ctypes.util.find_library("c"))
1784
.if_nametoindex)
1785
except (OSError, AttributeError):
1786
logger.warning("Doing if_nametoindex the hard way")
1787
def if_nametoindex(interface):
1788
"Get an interface index the hard way, i.e. using fcntl()"
1789
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1790
with contextlib.closing(socket.socket()) as s:
1791
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1792
struct.pack(str("16s16x"),
1793
interface))
1794
interface_index = struct.unpack(str("I"),
1795
ifreq[16:20])[0]
1796
return interface_index
1797
return if_nametoindex(interface)
1798
1799
1800
def daemon(nochdir = False, noclose = False):
2926
1801
"""See daemon(3). Standard BSD Unix function.
2927
1802
2928
1803
This should really exist as os.daemon, but it doesn't (yet)."""
2929
1804
if os.fork():
2930
1805
sys.exit()
2935
1810
sys.exit()
2936
1811
if not noclose:
2937
1812
# Close all standard open file descriptors
2938
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1813
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2939
1814
if not stat.S_ISCHR(os.fstat(null).st_mode):
2940
1815
raise OSError(errno.ENODEV,
2941
"{} not a character device"
2942
.format(os.devnull))
1816
"%s not a character device"
1817
% os.path.devnull)
2943
1818
os.dup2(null, sys.stdin.fileno())
2944
1819
os.dup2(null, sys.stdout.fileno())
2945
1820
os.dup2(null, sys.stderr.fileno())
2948
1823
2949
1824
2950
1825
def main():
2951
1826
2952
1827
##################################################################
2953
1828
# Parsing of options, both command line and config file
2954
1829
2955
1830
parser = argparse.ArgumentParser()
2956
1831
parser.add_argument("-v", "--version", action="version",
2957
version="%(prog)s {}".format(version),
1832
version = "%%(prog)s %s" % version,
2958
1833
help="show version number and exit")
2959
1834
parser.add_argument("-i", "--interface", metavar="IF",
2960
1835
help="Bind to interface IF")
2966
1841
help="Run self-test")
2967
1842
parser.add_argument("--debug", action="store_true",
2968
1843
help="Debug mode; run in foreground and log"
2969
" to terminal", default=None)
1844
" to terminal")
2970
1845
parser.add_argument("--debuglevel", metavar="LEVEL",
2971
1846
help="Debug level for stdout output")
2972
1847
parser.add_argument("--priority", help="GnuTLS"
2979
1854
" files")
2980
1855
parser.add_argument("--no-dbus", action="store_false",
2981
1856
dest="use_dbus", help="Do not provide D-Bus"
2982
" system bus interface", default=None)
1857
" system bus interface")
2983
1858
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
1859
dest="use_ipv6", help="Do not use IPv6")
3000
1860
options = parser.parse_args()
3001
1861
1862
if options.check:
1863
import doctest
1864
doctest.testmod()
1865
sys.exit()
1866
3002
1867
# 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
1868
server_defaults = { "interface": "",
1869
"address": "",
1870
"port": "",
1871
"debug": "False",
1872
"priority":
1873
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1874
"servicename": "Mandos",
1875
"use_dbus": "True",
1876
"use_ipv6": "True",
1877
"debuglevel": "",
1878
}
1879
3026
1880
# Parse config file for server-global settings
3027
server_config = configparser.ConfigParser(server_defaults)
1881
server_config = configparser.SafeConfigParser(server_defaults)
3028
1882
del server_defaults
3029
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3030
# Convert the ConfigParser object to a dict
1883
server_config.read(os.path.join(options.configdir,
1884
"mandos.conf"))
1885
# Convert the SafeConfigParser object to a dict
3031
1886
server_settings = server_config.defaults()
3032
1887
# Use the appropriate methods on the non-string config options
3033
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3034
"foreground", "zeroconf"):
1888
for option in ("debug", "use_dbus", "use_ipv6"):
3035
1889
server_settings[option] = server_config.getboolean("DEFAULT",
3036
1890
option)
3037
1891
if server_settings["port"]:
3038
1892
server_settings["port"] = server_config.getint("DEFAULT",
3039
1893
"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
1894
del server_config
3050
1895
3051
1896
# Override the settings from the config file with command line
3052
1897
# options, if set.
3053
1898
for option in ("interface", "address", "port", "debug",
3054
"priority", "servicename", "configdir", "use_dbus",
3055
"use_ipv6", "debuglevel", "restore", "statedir",
3056
"socket", "foreground", "zeroconf"):
1899
"priority", "servicename", "configdir",
1900
"use_dbus", "use_ipv6", "debuglevel"):
3057
1901
value = getattr(options, option)
3058
1902
if value is not None:
3059
1903
server_settings[option] = value
3060
1904
del options
3061
1905
# Force all strings to be unicode
3062
1906
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
1907
if type(server_settings[option]) is str:
1908
server_settings[option] = unicode(server_settings[option])
3073
1909
# Now we have our good server settings in "server_settings"
3074
1910
3075
1911
##################################################################
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
1912
3082
1913
# For convenience
3083
1914
debug = server_settings["debug"]
3084
1915
debuglevel = server_settings["debuglevel"]
3085
1916
use_dbus = server_settings["use_dbus"]
3086
1917
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
1918
3101
1919
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
1920
syslogger.setFormatter(logging.Formatter
1921
('Mandos (%s) [%%(process)d]:'
1922
' %%(levelname)s: %%(message)s'
1923
% server_settings["servicename"]))
1924
3107
1925
# Parse config file with clients
3108
client_config = configparser.ConfigParser(Client.client_defaults)
1926
client_defaults = { "timeout": "5m",
1927
"extended_timeout": "15m",
1928
"interval": "2m",
1929
"checker": "fping -q -- %%(host)s",
1930
"host": "",
1931
"approval_delay": "0s",
1932
"approval_duration": "1s",
1933
}
1934
client_config = configparser.SafeConfigParser(client_defaults)
3109
1935
client_config.read(os.path.join(server_settings["configdir"],
3110
1936
"clients.conf"))
3111
1937
3112
1938
global mandos_dbus_service
3113
1939
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
1940
1941
tcp_server = MandosServer((server_settings["address"],
1942
server_settings["port"]),
1943
ClientHandler,
1944
interface=(server_settings["interface"]
1945
or None),
1946
use_ipv6=use_ipv6,
1947
gnutls_priority=
1948
server_settings["priority"],
1949
use_dbus=use_dbus)
1950
if not debug:
1951
pidfilename = "/var/run/mandos.pid"
1952
try:
1953
pidfile = open(pidfilename, "w")
1954
except IOError:
1955
logger.error("Could not open file %r", pidfilename)
1956
1957
try:
1958
uid = pwd.getpwnam("_mandos").pw_uid
1959
gid = pwd.getpwnam("_mandos").pw_gid
1960
except KeyError:
1961
try:
1962
uid = pwd.getpwnam("mandos").pw_uid
1963
gid = pwd.getpwnam("mandos").pw_gid
3144
1964
except KeyError:
3145
continue
3146
else:
3147
uid = 65534
3148
gid = 65534
1965
try:
1966
uid = pwd.getpwnam("nobody").pw_uid
1967
gid = pwd.getpwnam("nobody").pw_gid
1968
except KeyError:
1969
uid = 65534
1970
gid = 65534
3149
1971
try:
3150
1972
os.setgid(gid)
3151
1973
os.setuid(uid)
3152
if debug:
3153
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3154
gid))
3155
1974
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
1975
if error[0] != errno.EPERM:
1976
raise error
1977
1978
if not debug and not debuglevel:
1979
logger.setLevel(logging.WARNING)
1980
if debuglevel:
1981
level = getattr(logging, debuglevel.upper())
1982
logger.setLevel(level)
1983
3161
1984
if debug:
1985
logger.setLevel(logging.DEBUG)
3162
1986
# Enable all possible GnuTLS debugging
3163
1987
3164
1988
# "Use a log level over 10 to enable all debugging options."
3165
1989
# - GnuTLS manual
3166
gnutls.global_set_log_level(11)
3167
3168
@gnutls.log_func
1990
gnutls.library.functions.gnutls_global_set_log_level(11)
1991
1992
@gnutls.library.types.gnutls_log_func
3169
1993
def debug_gnutls(level, string):
3170
1994
logger.debug("GnuTLS: %s", string[:-1])
3171
3172
gnutls.global_set_log_function(debug_gnutls)
3173
1995
1996
(gnutls.library.functions
1997
.gnutls_global_set_log_function(debug_gnutls))
1998
3174
1999
# Redirect stdin so all checkers get /dev/null
3175
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2000
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3176
2001
os.dup2(null, sys.stdin.fileno())
3177
2002
if null > 2:
3178
2003
os.close(null)
3179
2004
else:
2005
# No console logging
2006
logger.removeHandler(console)
2007
3180
2008
# Need to fork before connecting to D-Bus
3181
if not foreground:
2009
if not debug:
3182
2010
# Close all input and output, do double fork, etc.
3183
2011
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
2012
3190
2013
global main_loop
3191
2014
# From the Avahi example code
3192
DBusGMainLoop(set_as_default=True)
3193
main_loop = GLib.MainLoop()
2015
DBusGMainLoop(set_as_default=True )
2016
main_loop = gobject.MainLoop()
3194
2017
bus = dbus.SystemBus()
3195
2018
# End of Avahi example code
3196
2019
if use_dbus:
3197
2020
try:
3198
2021
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)
2022
bus, do_not_queue=True)
2023
old_bus_name = (dbus.service.BusName
2024
("se.bsnet.fukt.Mandos", bus,
2025
do_not_queue=True))
2026
except dbus.exceptions.NameExistsException as e:
2027
logger.error(unicode(e) + ", disabling D-Bus")
3206
2028
use_dbus = False
3207
2029
server_settings["use_dbus"] = False
3208
2030
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
2031
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2032
service = AvahiServiceToSyslog(name =
2033
server_settings["servicename"],
2034
servicetype = "_mandos._tcp",
2035
protocol = protocol, bus = bus)
2036
if server_settings["interface"]:
2037
service.interface = (if_nametoindex
2038
(str(server_settings["interface"])))
2039
3220
2040
global multiprocessing_manager
3221
2041
multiprocessing_manager = multiprocessing.Manager()
3222
2042
3223
2043
client_class = Client
3224
2044
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))
2045
client_class = functools.partial(ClientDBusTransitional,
2046
bus = bus)
2047
def client_config_items(config, section):
2048
special_settings = {
2049
"approved_by_default":
2050
lambda: config.getboolean(section,
2051
"approved_by_default"),
2052
}
2053
for name, value in config.items(section):
3358
2054
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
2055
yield (name, special_settings[name]())
2056
except KeyError:
2057
yield (name, value)
2058
2059
tcp_server.clients.update(set(
2060
client_class(name = section,
2061
config= dict(client_config_items(
2062
client_config, section)))
2063
for section in client_config.sections()))
3384
2064
if not tcp_server.clients:
3385
2065
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
2066
2067
if not debug:
2068
try:
2069
with pidfile:
2070
pid = os.getpid()
2071
pidfile.write(str(pid) + "\n".encode("utf-8"))
2072
del pidfile
2073
except IOError:
2074
logger.error("Could not write to file %r with PID %d",
2075
pidfilename, pid)
2076
except NameError:
2077
# "pidfile" was never created
2078
pass
3397
2079
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
2080
2081
signal.signal(signal.SIGINT, signal.SIG_IGN)
2082
2083
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2084
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2085
3403
2086
if use_dbus:
3404
3405
@alternate_dbus_interfaces(
3406
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3407
class MandosDBusService(DBusObjectWithObjectManager):
2087
class MandosDBusService(dbus.service.Object):
3408
2088
"""A D-Bus proxy object"""
3409
3410
2089
def __init__(self):
3411
2090
dbus.service.Object.__init__(self, bus, "/")
3412
3413
2091
_interface = "se.recompile.Mandos"
3414
2092
3415
2093
@dbus.service.signal(_interface, signature="o")
3416
2094
def ClientAdded(self, objpath):
3417
2095
"D-Bus signal"
3418
2096
pass
3419
2097
3420
2098
@dbus.service.signal(_interface, signature="ss")
3421
def ClientNotFound(self, key_id, address):
2099
def ClientNotFound(self, fingerprint, address):
3422
2100
"D-Bus signal"
3423
2101
pass
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2102
3427
2103
@dbus.service.signal(_interface, signature="os")
3428
2104
def ClientRemoved(self, objpath, name):
3429
2105
"D-Bus signal"
3430
2106
pass
3431
3432
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3433
"true"})
2107
3434
2108
@dbus.service.method(_interface, out_signature="ao")
3435
2109
def GetAllClients(self):
3436
2110
"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"})
2111
return dbus.Array(c.dbus_object_path
2112
for c in tcp_server.clients)
2113
3442
2114
@dbus.service.method(_interface,
3443
2115
out_signature="a{oa{sv}}")
3444
2116
def GetAllClientsWithProperties(self):
3445
2117
"D-Bus method"
3446
2118
return dbus.Dictionary(
3447
{c.dbus_object_path: c.GetAll(
3448
"se.recompile.Mandos.Client")
3449
for c in tcp_server.clients.values()},
2119
((c.dbus_object_path, c.GetAll(""))
2120
for c in tcp_server.clients),
3450
2121
signature="oa{sv}")
3451
2122
3452
2123
@dbus.service.method(_interface, in_signature="o")
3453
2124
def RemoveClient(self, object_path):
3454
2125
"D-Bus method"
3455
for c in tcp_server.clients.values():
2126
for c in tcp_server.clients:
3456
2127
if c.dbus_object_path == object_path:
3457
del tcp_server.clients[c.name]
2128
tcp_server.clients.remove(c)
3458
2129
c.remove_from_connection()
3459
# Don't signal the disabling
2130
# Don't signal anything except ClientRemoved
3460
2131
c.disable(quiet=True)
3461
# Emit D-Bus signal for removal
3462
self.client_removed_signal(c)
2132
# Emit D-Bus signal
2133
self.ClientRemoved(object_path, c.name)
3463
2134
return
3464
2135
raise KeyError(object_path)
3465
2136
3466
2137
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
2138
2139
class MandosDBusServiceTransitional(MandosDBusService):
2140
__metaclass__ = AlternateDBusNamesMetaclass
2141
mandos_dbus_service = MandosDBusServiceTransitional()
2142
3511
2143
def cleanup():
3512
2144
"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
2145
service.cleanup()
2146
2147
multiprocessing.active_children()
3575
2148
while tcp_server.clients:
3576
name, client = tcp_server.clients.popitem()
2149
client = tcp_server.clients.pop()
3577
2150
if use_dbus:
3578
2151
client.remove_from_connection()
3579
# Don't signal the disabling
2152
client.disable_hook = None
2153
# Don't signal anything except ClientRemoved
3580
2154
client.disable(quiet=True)
3581
# Emit D-Bus signal for removal
3582
2155
if use_dbus:
3583
mandos_dbus_service.client_removed_signal(client)
3584
client_settings.clear()
3585
2156
# Emit D-Bus signal
2157
mandos_dbus_service.ClientRemoved(client
2158
.dbus_object_path,
2159
client.name)
2160
3586
2161
atexit.register(cleanup)
3587
3588
for client in tcp_server.clients.values():
2162
2163
for client in tcp_server.clients:
3589
2164
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
2165
# Emit D-Bus signal
2166
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2167
client.enable()
2168
3596
2169
tcp_server.enable()
3597
2170
tcp_server.server_activate()
3598
2171
3599
2172
# Find out what port we got
3600
if zeroconf:
3601
service.port = tcp_server.socket.getsockname()[1]
2173
service.port = tcp_server.socket.getsockname()[1]
3602
2174
if use_ipv6:
3603
2175
logger.info("Now listening on address %r, port %d,"
3604
" flowinfo %d, scope_id %d",
3605
*tcp_server.socket.getsockname())
2176
" flowinfo %d, scope_id %d"
2177
% tcp_server.socket.getsockname())
3606
2178
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
2179
logger.info("Now listening on address %r, port %d"
2180
% tcp_server.socket.getsockname())
2181
2182
#service.interface = tcp_server.socket.getsockname()[3]
2183
3612
2184
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
2185
# From the Avahi example code
2186
try:
2187
service.activate()
2188
except dbus.exceptions.DBusException as error:
2189
logger.critical("DBusException: %s", error)
2190
cleanup()
2191
sys.exit(1)
2192
# End of Avahi example code
2193
2194
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2195
lambda *args, **kwargs:
2196
(tcp_server.handle_request
2197
(*args[2:], **kwargs) or True))
2198
3629
2199
logger.debug("Starting main loop")
3630
2200
main_loop.run()
3631
2201
except AvahiError as error:
3632
logger.critical("Avahi Error", exc_info=error)
2202
logger.critical("AvahiError: %s", error)
3633
2203
cleanup()
3634
2204
sys.exit(1)
3635
2205
except KeyboardInterrupt:
3640
2210
# Must run before the D-Bus bus name gets deregistered
3641
2211
cleanup()
3642
2212
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
2213
3660
2214
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()
2215
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0