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- Committer: teddy at recompile
- Date: 2020-02-07 20:53:34 UTC
- mto: This revision was merged to the branch mainline in revision 396.
- Revision ID: teddy@recompile.se-20200207205334-dp41p8c8vw0ytik5
Allow users to more easily alter mandos.service
The sysvinit script uses /etc/default/mandos as an environment file,
and supports adding additional server options to a DAEMON_ARGS
environment variable. This should be supported by the systemd
service, too.
* mandos.service ([Service]/EnvironmentFile): New; set to
"/etc/default/mandos ".
([Service]/ExecStart): Append "$DAEMON_ARGS".
The sysvinit script uses /etc/default/mandos as an environment file,
and supports adding additional server options to a DAEMON_ARGS
environment variable. This should be supported by the systemd
service, too.
* mandos.service ([Service]/EnvironmentFile): New; set to
"/etc/default/mandos ".
([Service]/ExecStart): Append "$DAEMON_ARGS".
- files added:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
32
# Contact the authors at <mandos@recompile.se>.
32
#
33
#
33
34
34
35
from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
36
37
37
import SocketServer as socketserver
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
38
47
import socket
39
48
import argparse
40
49
import datetime
41
50
import errno
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
49
55
import sys
50
56
import re
51
57
import os
60
66
import struct
61
67
import fcntl
62
68
import functools
63
import cPickle as pickle
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
64
73
import multiprocessing
65
74
import types
66
75
import binascii
67
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
68
82
69
83
import dbus
70
84
import dbus.service
71
import gobject
72
import avahi
85
import gi
86
from gi.repository import GLib
73
87
from dbus.mainloop.glib import DBusGMainLoop
74
88
import ctypes
75
89
import ctypes.util
76
90
import xml.dom.minidom
77
91
import inspect
78
import GnuPGInterface
79
80
try:
92
93
if sys.version_info.major == 2:
94
__metaclass__ = type
95
str = unicode
96
97
# Add collections.abc.Callable if it does not exist
98
try:
99
collections.abc.Callable
100
except AttributeError:
101
class abc:
102
Callable = collections.Callable
103
collections.abc = abc
104
del abc
105
106
# Show warnings by default
107
if not sys.warnoptions:
108
import warnings
109
warnings.simplefilter("default")
110
111
# Try to find the value of SO_BINDTODEVICE:
112
try:
113
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
114
# newer, and it is also the most natural place for it:
81
115
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
82
116
except AttributeError:
83
117
try:
118
# This is where SO_BINDTODEVICE was up to and including Python
119
# 2.6, and also 3.2:
84
120
from IN import SO_BINDTODEVICE
85
121
except ImportError:
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
122
# In Python 2.7 it seems to have been removed entirely.
123
# Try running the C preprocessor:
124
try:
125
cc = subprocess.Popen(["cc", "--language=c", "-E",
126
"/dev/stdin"],
127
stdin=subprocess.PIPE,
128
stdout=subprocess.PIPE)
129
stdout = cc.communicate(
130
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
131
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
132
except (OSError, ValueError, IndexError):
133
# No value found
134
SO_BINDTODEVICE = None
135
136
if sys.version_info < (3, 2):
137
configparser.Configparser = configparser.SafeConfigParser
138
139
version = "1.8.9"
89
140
stored_state_file = "clients.pickle"
90
141
91
142
logger = logging.getLogger()
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
143
logging.captureWarnings(True) # Show warnings via the logging system
144
syslogger = None
95
145
96
146
try:
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
147
if_nametoindex = ctypes.cdll.LoadLibrary(
148
ctypes.util.find_library("c")).if_nametoindex
100
149
except (OSError, AttributeError):
150
101
151
def if_nametoindex(interface):
102
152
"Get an interface index the hard way, i.e. using fcntl()"
103
153
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
104
154
with contextlib.closing(socket.socket()) as s:
105
155
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
156
struct.pack(b"16s16x", interface))
157
interface_index = struct.unpack("I", ifreq[16:20])[0]
110
158
return interface_index
111
159
112
160
161
def copy_function(func):
162
"""Make a copy of a function"""
163
if sys.version_info.major == 2:
164
return types.FunctionType(func.func_code,
165
func.func_globals,
166
func.func_name,
167
func.func_defaults,
168
func.func_closure)
169
else:
170
return types.FunctionType(func.__code__,
171
func.__globals__,
172
func.__name__,
173
func.__defaults__,
174
func.__closure__)
175
176
113
177
def initlogger(debug, level=logging.WARNING):
114
178
"""init logger and add loglevel"""
115
179
180
global syslogger
181
syslogger = (logging.handlers.SysLogHandler(
182
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
183
address="/dev/log"))
116
184
syslogger.setFormatter(logging.Formatter
117
185
('Mandos [%(process)d]: %(levelname)s:'
118
186
' %(message)s'))
119
187
logger.addHandler(syslogger)
120
188
121
189
if debug:
122
190
console = logging.StreamHandler()
123
191
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
133
201
pass
134
202
135
203
136
class PGPEngine(object):
204
class PGPEngine:
137
205
"""A simple class for OpenPGP symmetric encryption & decryption"""
206
138
207
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
140
208
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet'])
146
209
self.gpg = "gpg"
210
try:
211
output = subprocess.check_output(["gpgconf"])
212
for line in output.splitlines():
213
name, text, path = line.split(b":")
214
if name == b"gpg":
215
self.gpg = path
216
break
217
except OSError as e:
218
if e.errno != errno.ENOENT:
219
raise
220
self.gnupgargs = ['--batch',
221
'--homedir', self.tempdir,
222
'--force-mdc',
223
'--quiet']
224
# Only GPG version 1 has the --no-use-agent option.
225
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
226
self.gnupgargs.append("--no-use-agent")
227
147
228
def __enter__(self):
148
229
return self
149
150
def __exit__ (self, exc_type, exc_value, traceback):
230
231
def __exit__(self, exc_type, exc_value, traceback):
151
232
self._cleanup()
152
233
return False
153
234
154
235
def __del__(self):
155
236
self._cleanup()
156
237
157
238
def _cleanup(self):
158
239
if self.tempdir is not None:
159
240
# Delete contents of tempdir
160
241
for root, dirs, files in os.walk(self.tempdir,
161
topdown = False):
242
topdown=False):
162
243
for filename in files:
163
244
os.remove(os.path.join(root, filename))
164
245
for dirname in dirs:
166
247
# Remove tempdir
167
248
os.rmdir(self.tempdir)
168
249
self.tempdir = None
169
250
170
251
def password_encode(self, password):
171
252
# Passphrase can not be empty and can not contain newlines or
172
253
# NUL bytes. So we prefix it and hex encode it.
173
return b"mandos" + binascii.hexlify(password)
174
254
encoded = b"mandos" + binascii.hexlify(password)
255
if len(encoded) > 2048:
256
# GnuPG can't handle long passwords, so encode differently
257
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
258
.replace(b"\n", b"\\n")
259
.replace(b"\0", b"\\x00"))
260
return encoded
261
175
262
def encrypt(self, data, password):
176
self.gnupg.passphrase = self.password_encode(password)
177
with open(os.devnull) as devnull:
178
try:
179
proc = self.gnupg.run(['--symmetric'],
180
create_fhs=['stdin', 'stdout'],
181
attach_fhs={'stderr': devnull})
182
with contextlib.closing(proc.handles['stdin']) as f:
183
f.write(data)
184
with contextlib.closing(proc.handles['stdout']) as f:
185
ciphertext = f.read()
186
proc.wait()
187
except IOError as e:
188
raise PGPError(e)
189
self.gnupg.passphrase = None
263
passphrase = self.password_encode(password)
264
with tempfile.NamedTemporaryFile(
265
dir=self.tempdir) as passfile:
266
passfile.write(passphrase)
267
passfile.flush()
268
proc = subprocess.Popen([self.gpg, '--symmetric',
269
'--passphrase-file',
270
passfile.name]
271
+ self.gnupgargs,
272
stdin=subprocess.PIPE,
273
stdout=subprocess.PIPE,
274
stderr=subprocess.PIPE)
275
ciphertext, err = proc.communicate(input=data)
276
if proc.returncode != 0:
277
raise PGPError(err)
190
278
return ciphertext
191
279
192
280
def decrypt(self, data, password):
193
self.gnupg.passphrase = self.password_encode(password)
194
with open(os.devnull) as devnull:
195
try:
196
proc = self.gnupg.run(['--decrypt'],
197
create_fhs=['stdin', 'stdout'],
198
attach_fhs={'stderr': devnull})
199
with contextlib.closing(proc.handles['stdin'] ) as f:
200
f.write(data)
201
with contextlib.closing(proc.handles['stdout']) as f:
202
decrypted_plaintext = f.read()
203
proc.wait()
204
except IOError as e:
205
raise PGPError(e)
206
self.gnupg.passphrase = None
281
passphrase = self.password_encode(password)
282
with tempfile.NamedTemporaryFile(
283
dir=self.tempdir) as passfile:
284
passfile.write(passphrase)
285
passfile.flush()
286
proc = subprocess.Popen([self.gpg, '--decrypt',
287
'--passphrase-file',
288
passfile.name]
289
+ self.gnupgargs,
290
stdin=subprocess.PIPE,
291
stdout=subprocess.PIPE,
292
stderr=subprocess.PIPE)
293
decrypted_plaintext, err = proc.communicate(input=data)
294
if proc.returncode != 0:
295
raise PGPError(err)
207
296
return decrypted_plaintext
208
297
209
298
299
# Pretend that we have an Avahi module
300
class avahi:
301
"""This isn't so much a class as it is a module-like namespace."""
302
IF_UNSPEC = -1 # avahi-common/address.h
303
PROTO_UNSPEC = -1 # avahi-common/address.h
304
PROTO_INET = 0 # avahi-common/address.h
305
PROTO_INET6 = 1 # avahi-common/address.h
306
DBUS_NAME = "org.freedesktop.Avahi"
307
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
308
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
309
DBUS_PATH_SERVER = "/"
310
311
@staticmethod
312
def string_array_to_txt_array(t):
313
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
314
for s in t), signature="ay")
315
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
316
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
317
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
318
SERVER_INVALID = 0 # avahi-common/defs.h
319
SERVER_REGISTERING = 1 # avahi-common/defs.h
320
SERVER_RUNNING = 2 # avahi-common/defs.h
321
SERVER_COLLISION = 3 # avahi-common/defs.h
322
SERVER_FAILURE = 4 # avahi-common/defs.h
323
210
324
211
325
class AvahiError(Exception):
212
326
def __init__(self, value, *args, **kwargs):
213
327
self.value = value
214
super(AvahiError, self).__init__(value, *args, **kwargs)
215
def __unicode__(self):
216
return unicode(repr(self.value))
328
return super(AvahiError, self).__init__(value, *args,
329
**kwargs)
330
217
331
218
332
class AvahiServiceError(AvahiError):
219
333
pass
220
334
335
221
336
class AvahiGroupError(AvahiError):
222
337
pass
223
338
224
339
225
class AvahiService(object):
340
class AvahiService:
226
341
"""An Avahi (Zeroconf) service.
227
342
228
343
Attributes:
229
344
interface: integer; avahi.IF_UNSPEC or an interface index.
230
345
Used to optionally bind to the specified interface.
231
346
name: string; Example: 'Mandos'
232
347
type: string; Example: '_mandos._tcp'.
233
See <http://www.dns-sd.org/ServiceTypes.html>
348
See <https://www.iana.org/assignments/service-names-port-numbers>
234
349
port: integer; what port to announce
235
350
TXT: list of strings; TXT record for the service
236
351
domain: string; Domain to publish on, default to .local if empty.
242
357
server: D-Bus Server
243
358
bus: dbus.SystemBus()
244
359
"""
245
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
246
servicetype = None, port = None, TXT = None,
247
domain = "", host = "", max_renames = 32768,
248
protocol = avahi.PROTO_UNSPEC, bus = None):
360
361
def __init__(self,
362
interface=avahi.IF_UNSPEC,
363
name=None,
364
servicetype=None,
365
port=None,
366
TXT=None,
367
domain="",
368
host="",
369
max_renames=32768,
370
protocol=avahi.PROTO_UNSPEC,
371
bus=None):
249
372
self.interface = interface
250
373
self.name = name
251
374
self.type = servicetype
260
383
self.server = None
261
384
self.bus = bus
262
385
self.entry_group_state_changed_match = None
263
def rename(self):
386
387
def rename(self, remove=True):
264
388
"""Derived from the Avahi example code"""
265
389
if self.rename_count >= self.max_renames:
266
390
logger.critical("No suitable Zeroconf service name found"
267
391
" after %i retries, exiting.",
268
392
self.rename_count)
269
393
raise AvahiServiceError("Too many renames")
270
self.name = unicode(self.server
271
.GetAlternativeServiceName(self.name))
394
self.name = str(
395
self.server.GetAlternativeServiceName(self.name))
396
self.rename_count += 1
272
397
logger.info("Changing Zeroconf service name to %r ...",
273
398
self.name)
274
self.remove()
399
if remove:
400
self.remove()
275
401
try:
276
402
self.add()
277
403
except dbus.exceptions.DBusException as error:
278
logger.critical("DBusException: %s", error)
279
self.cleanup()
280
os._exit(1)
281
self.rename_count += 1
404
if (error.get_dbus_name()
405
== "org.freedesktop.Avahi.CollisionError"):
406
logger.info("Local Zeroconf service name collision.")
407
return self.rename(remove=False)
408
else:
409
logger.critical("D-Bus Exception", exc_info=error)
410
self.cleanup()
411
os._exit(1)
412
282
413
def remove(self):
283
414
"""Derived from the Avahi example code"""
284
415
if self.entry_group_state_changed_match is not None:
286
417
self.entry_group_state_changed_match = None
287
418
if self.group is not None:
288
419
self.group.Reset()
420
289
421
def add(self):
290
422
"""Derived from the Avahi example code"""
291
423
self.remove()
308
440
dbus.UInt16(self.port),
309
441
avahi.string_array_to_txt_array(self.TXT))
310
442
self.group.Commit()
443
311
444
def entry_group_state_changed(self, state, error):
312
445
"""Derived from the Avahi example code"""
313
446
logger.debug("Avahi entry group state change: %i", state)
314
447
315
448
if state == avahi.ENTRY_GROUP_ESTABLISHED:
316
449
logger.debug("Zeroconf service established.")
317
450
elif state == avahi.ENTRY_GROUP_COLLISION:
319
452
self.rename()
320
453
elif state == avahi.ENTRY_GROUP_FAILURE:
321
454
logger.critical("Avahi: Error in group state changed %s",
322
unicode(error))
323
raise AvahiGroupError("State changed: %s"
324
% unicode(error))
455
str(error))
456
raise AvahiGroupError("State changed: {!s}".format(error))
457
325
458
def cleanup(self):
326
459
"""Derived from the Avahi example code"""
327
460
if self.group is not None:
332
465
pass
333
466
self.group = None
334
467
self.remove()
468
335
469
def server_state_changed(self, state, error=None):
336
470
"""Derived from the Avahi example code"""
337
471
logger.debug("Avahi server state change: %i", state)
338
bad_states = { avahi.SERVER_INVALID:
339
"Zeroconf server invalid",
340
avahi.SERVER_REGISTERING: None,
341
avahi.SERVER_COLLISION:
342
"Zeroconf server name collision",
343
avahi.SERVER_FAILURE:
344
"Zeroconf server failure" }
472
bad_states = {
473
avahi.SERVER_INVALID: "Zeroconf server invalid",
474
avahi.SERVER_REGISTERING: None,
475
avahi.SERVER_COLLISION: "Zeroconf server name collision",
476
avahi.SERVER_FAILURE: "Zeroconf server failure",
477
}
345
478
if state in bad_states:
346
479
if bad_states[state] is not None:
347
480
if error is None:
350
483
logger.error(bad_states[state] + ": %r", error)
351
484
self.cleanup()
352
485
elif state == avahi.SERVER_RUNNING:
353
self.add()
486
try:
487
self.add()
488
except dbus.exceptions.DBusException as error:
489
if (error.get_dbus_name()
490
== "org.freedesktop.Avahi.CollisionError"):
491
logger.info("Local Zeroconf service name"
492
" collision.")
493
return self.rename(remove=False)
494
else:
495
logger.critical("D-Bus Exception", exc_info=error)
496
self.cleanup()
497
os._exit(1)
354
498
else:
355
499
if error is None:
356
500
logger.debug("Unknown state: %r", state)
357
501
else:
358
502
logger.debug("Unknown state: %r: %r", state, error)
503
359
504
def activate(self):
360
505
"""Derived from the Avahi example code"""
361
506
if self.server is None:
365
510
follow_name_owner_changes=True),
366
511
avahi.DBUS_INTERFACE_SERVER)
367
512
self.server.connect_to_signal("StateChanged",
368
self.server_state_changed)
513
self.server_state_changed)
369
514
self.server_state_changed(self.server.GetState())
370
515
516
371
517
class AvahiServiceToSyslog(AvahiService):
372
def rename(self):
518
def rename(self, *args, **kwargs):
373
519
"""Add the new name to the syslog messages"""
374
ret = AvahiService.rename(self)
375
syslogger.setFormatter(logging.Formatter
376
('Mandos (%s) [%%(process)d]:'
377
' %%(levelname)s: %%(message)s'
378
% self.name))
520
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
521
syslogger.setFormatter(logging.Formatter(
522
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
523
.format(self.name)))
379
524
return ret
380
525
381
def timedelta_to_milliseconds(td):
382
"Convert a datetime.timedelta() to milliseconds"
383
return ((td.days * 24 * 60 * 60 * 1000)
384
+ (td.seconds * 1000)
385
+ (td.microseconds // 1000))
386
387
class Client(object):
526
527
# Pretend that we have a GnuTLS module
528
class gnutls:
529
"""This isn't so much a class as it is a module-like namespace."""
530
531
library = ctypes.util.find_library("gnutls")
532
if library is None:
533
library = ctypes.util.find_library("gnutls-deb0")
534
_library = ctypes.cdll.LoadLibrary(library)
535
del library
536
537
# Unless otherwise indicated, the constants and types below are
538
# all from the gnutls/gnutls.h C header file.
539
540
# Constants
541
E_SUCCESS = 0
542
E_INTERRUPTED = -52
543
E_AGAIN = -28
544
CRT_OPENPGP = 2
545
CRT_RAWPK = 3
546
CLIENT = 2
547
SHUT_RDWR = 0
548
CRD_CERTIFICATE = 1
549
E_NO_CERTIFICATE_FOUND = -49
550
X509_FMT_DER = 0
551
NO_TICKETS = 1<<10
552
ENABLE_RAWPK = 1<<18
553
CTYPE_PEERS = 3
554
KEYID_USE_SHA256 = 1 # gnutls/x509.h
555
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
556
557
# Types
558
class session_int(ctypes.Structure):
559
_fields_ = []
560
session_t = ctypes.POINTER(session_int)
561
562
class certificate_credentials_st(ctypes.Structure):
563
_fields_ = []
564
certificate_credentials_t = ctypes.POINTER(
565
certificate_credentials_st)
566
certificate_type_t = ctypes.c_int
567
568
class datum_t(ctypes.Structure):
569
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
570
('size', ctypes.c_uint)]
571
572
class openpgp_crt_int(ctypes.Structure):
573
_fields_ = []
574
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
575
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
576
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
577
credentials_type_t = ctypes.c_int
578
transport_ptr_t = ctypes.c_void_p
579
close_request_t = ctypes.c_int
580
581
# Exceptions
582
class Error(Exception):
583
def __init__(self, message=None, code=None, args=()):
584
# Default usage is by a message string, but if a return
585
# code is passed, convert it to a string with
586
# gnutls.strerror()
587
self.code = code
588
if message is None and code is not None:
589
message = gnutls.strerror(code)
590
return super(gnutls.Error, self).__init__(
591
message, *args)
592
593
class CertificateSecurityError(Error):
594
pass
595
596
# Classes
597
class Credentials:
598
def __init__(self):
599
self._c_object = gnutls.certificate_credentials_t()
600
gnutls.certificate_allocate_credentials(
601
ctypes.byref(self._c_object))
602
self.type = gnutls.CRD_CERTIFICATE
603
604
def __del__(self):
605
gnutls.certificate_free_credentials(self._c_object)
606
607
class ClientSession:
608
def __init__(self, socket, credentials=None):
609
self._c_object = gnutls.session_t()
610
gnutls_flags = gnutls.CLIENT
611
if gnutls.check_version(b"3.5.6"):
612
gnutls_flags |= gnutls.NO_TICKETS
613
if gnutls.has_rawpk:
614
gnutls_flags |= gnutls.ENABLE_RAWPK
615
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
616
del gnutls_flags
617
gnutls.set_default_priority(self._c_object)
618
gnutls.transport_set_ptr(self._c_object, socket.fileno())
619
gnutls.handshake_set_private_extensions(self._c_object,
620
True)
621
self.socket = socket
622
if credentials is None:
623
credentials = gnutls.Credentials()
624
gnutls.credentials_set(self._c_object, credentials.type,
625
ctypes.cast(credentials._c_object,
626
ctypes.c_void_p))
627
self.credentials = credentials
628
629
def __del__(self):
630
gnutls.deinit(self._c_object)
631
632
def handshake(self):
633
return gnutls.handshake(self._c_object)
634
635
def send(self, data):
636
data = bytes(data)
637
data_len = len(data)
638
while data_len > 0:
639
data_len -= gnutls.record_send(self._c_object,
640
data[-data_len:],
641
data_len)
642
643
def bye(self):
644
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
645
646
# Error handling functions
647
def _error_code(result):
648
"""A function to raise exceptions on errors, suitable
649
for the 'restype' attribute on ctypes functions"""
650
if result >= 0:
651
return result
652
if result == gnutls.E_NO_CERTIFICATE_FOUND:
653
raise gnutls.CertificateSecurityError(code=result)
654
raise gnutls.Error(code=result)
655
656
def _retry_on_error(result, func, arguments):
657
"""A function to retry on some errors, suitable
658
for the 'errcheck' attribute on ctypes functions"""
659
while result < 0:
660
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
661
return _error_code(result)
662
result = func(*arguments)
663
return result
664
665
# Unless otherwise indicated, the function declarations below are
666
# all from the gnutls/gnutls.h C header file.
667
668
# Functions
669
priority_set_direct = _library.gnutls_priority_set_direct
670
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
671
ctypes.POINTER(ctypes.c_char_p)]
672
priority_set_direct.restype = _error_code
673
674
init = _library.gnutls_init
675
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
676
init.restype = _error_code
677
678
set_default_priority = _library.gnutls_set_default_priority
679
set_default_priority.argtypes = [session_t]
680
set_default_priority.restype = _error_code
681
682
record_send = _library.gnutls_record_send
683
record_send.argtypes = [session_t, ctypes.c_void_p,
684
ctypes.c_size_t]
685
record_send.restype = ctypes.c_ssize_t
686
record_send.errcheck = _retry_on_error
687
688
certificate_allocate_credentials = (
689
_library.gnutls_certificate_allocate_credentials)
690
certificate_allocate_credentials.argtypes = [
691
ctypes.POINTER(certificate_credentials_t)]
692
certificate_allocate_credentials.restype = _error_code
693
694
certificate_free_credentials = (
695
_library.gnutls_certificate_free_credentials)
696
certificate_free_credentials.argtypes = [
697
certificate_credentials_t]
698
certificate_free_credentials.restype = None
699
700
handshake_set_private_extensions = (
701
_library.gnutls_handshake_set_private_extensions)
702
handshake_set_private_extensions.argtypes = [session_t,
703
ctypes.c_int]
704
handshake_set_private_extensions.restype = None
705
706
credentials_set = _library.gnutls_credentials_set
707
credentials_set.argtypes = [session_t, credentials_type_t,
708
ctypes.c_void_p]
709
credentials_set.restype = _error_code
710
711
strerror = _library.gnutls_strerror
712
strerror.argtypes = [ctypes.c_int]
713
strerror.restype = ctypes.c_char_p
714
715
certificate_type_get = _library.gnutls_certificate_type_get
716
certificate_type_get.argtypes = [session_t]
717
certificate_type_get.restype = _error_code
718
719
certificate_get_peers = _library.gnutls_certificate_get_peers
720
certificate_get_peers.argtypes = [session_t,
721
ctypes.POINTER(ctypes.c_uint)]
722
certificate_get_peers.restype = ctypes.POINTER(datum_t)
723
724
global_set_log_level = _library.gnutls_global_set_log_level
725
global_set_log_level.argtypes = [ctypes.c_int]
726
global_set_log_level.restype = None
727
728
global_set_log_function = _library.gnutls_global_set_log_function
729
global_set_log_function.argtypes = [log_func]
730
global_set_log_function.restype = None
731
732
deinit = _library.gnutls_deinit
733
deinit.argtypes = [session_t]
734
deinit.restype = None
735
736
handshake = _library.gnutls_handshake
737
handshake.argtypes = [session_t]
738
handshake.restype = _error_code
739
handshake.errcheck = _retry_on_error
740
741
transport_set_ptr = _library.gnutls_transport_set_ptr
742
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
743
transport_set_ptr.restype = None
744
745
bye = _library.gnutls_bye
746
bye.argtypes = [session_t, close_request_t]
747
bye.restype = _error_code
748
bye.errcheck = _retry_on_error
749
750
check_version = _library.gnutls_check_version
751
check_version.argtypes = [ctypes.c_char_p]
752
check_version.restype = ctypes.c_char_p
753
754
_need_version = b"3.3.0"
755
if check_version(_need_version) is None:
756
raise self.Error("Needs GnuTLS {} or later"
757
.format(_need_version))
758
759
_tls_rawpk_version = b"3.6.6"
760
has_rawpk = bool(check_version(_tls_rawpk_version))
761
762
if has_rawpk:
763
# Types
764
class pubkey_st(ctypes.Structure):
765
_fields = []
766
pubkey_t = ctypes.POINTER(pubkey_st)
767
768
x509_crt_fmt_t = ctypes.c_int
769
770
# All the function declarations below are from gnutls/abstract.h
771
pubkey_init = _library.gnutls_pubkey_init
772
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
773
pubkey_init.restype = _error_code
774
775
pubkey_import = _library.gnutls_pubkey_import
776
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
777
x509_crt_fmt_t]
778
pubkey_import.restype = _error_code
779
780
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
781
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
782
ctypes.POINTER(ctypes.c_ubyte),
783
ctypes.POINTER(ctypes.c_size_t)]
784
pubkey_get_key_id.restype = _error_code
785
786
pubkey_deinit = _library.gnutls_pubkey_deinit
787
pubkey_deinit.argtypes = [pubkey_t]
788
pubkey_deinit.restype = None
789
else:
790
# All the function declarations below are from gnutls/openpgp.h
791
792
openpgp_crt_init = _library.gnutls_openpgp_crt_init
793
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
794
openpgp_crt_init.restype = _error_code
795
796
openpgp_crt_import = _library.gnutls_openpgp_crt_import
797
openpgp_crt_import.argtypes = [openpgp_crt_t,
798
ctypes.POINTER(datum_t),
799
openpgp_crt_fmt_t]
800
openpgp_crt_import.restype = _error_code
801
802
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
803
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
804
ctypes.POINTER(ctypes.c_uint)]
805
openpgp_crt_verify_self.restype = _error_code
806
807
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
808
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
809
openpgp_crt_deinit.restype = None
810
811
openpgp_crt_get_fingerprint = (
812
_library.gnutls_openpgp_crt_get_fingerprint)
813
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
814
ctypes.c_void_p,
815
ctypes.POINTER(
816
ctypes.c_size_t)]
817
openpgp_crt_get_fingerprint.restype = _error_code
818
819
if check_version(b"3.6.4"):
820
certificate_type_get2 = _library.gnutls_certificate_type_get2
821
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
822
certificate_type_get2.restype = _error_code
823
824
# Remove non-public functions
825
del _error_code, _retry_on_error
826
827
828
def call_pipe(connection, # : multiprocessing.Connection
829
func, *args, **kwargs):
830
"""This function is meant to be called by multiprocessing.Process
831
832
This function runs func(*args, **kwargs), and writes the resulting
833
return value on the provided multiprocessing.Connection.
834
"""
835
connection.send(func(*args, **kwargs))
836
connection.close()
837
838
839
class Client:
388
840
"""A representation of a client host served by this server.
389
841
390
842
Attributes:
391
843
approved: bool(); 'None' if not yet approved/disapproved
392
844
approval_delay: datetime.timedelta(); Time to wait for approval
393
845
approval_duration: datetime.timedelta(); Duration of one approval
394
checker: subprocess.Popen(); a running checker process used
395
to see if the client lives.
396
'None' if no process is running.
397
checker_callback_tag: a gobject event source tag, or None
846
checker: multiprocessing.Process(); a running checker process used
847
to see if the client lives. 'None' if no process is
848
running.
849
checker_callback_tag: a GLib event source tag, or None
398
850
checker_command: string; External command which is run to check
399
851
if client lives. %() expansions are done at
400
852
runtime with vars(self) as dict, so that for
401
853
instance %(name)s can be used in the command.
402
checker_initiator_tag: a gobject event source tag, or None
854
checker_initiator_tag: a GLib event source tag, or None
403
855
created: datetime.datetime(); (UTC) object creation
404
856
client_structure: Object describing what attributes a client has
405
857
and is used for storing the client at exit
406
858
current_checker_command: string; current running checker_command
407
disable_initiator_tag: a gobject event source tag, or None
859
disable_initiator_tag: a GLib event source tag, or None
408
860
enabled: bool()
409
861
fingerprint: string (40 or 32 hexadecimal digits); used to
410
uniquely identify the client
862
uniquely identify an OpenPGP client
863
key_id: string (64 hexadecimal digits); used to uniquely identify
864
a client using raw public keys
411
865
host: string; available for use by the checker command
412
866
interval: datetime.timedelta(); How often to start a new checker
413
867
last_approval_request: datetime.datetime(); (UTC) or None
414
868
last_checked_ok: datetime.datetime(); (UTC) or None
415
869
last_checker_status: integer between 0 and 255 reflecting exit
416
870
status of last checker. -1 reflects crashed
417
checker, or None.
871
checker, -2 means no checker completed yet.
872
last_checker_signal: The signal which killed the last checker, if
873
last_checker_status is -1
418
874
last_enabled: datetime.datetime(); (UTC) or None
419
875
name: string; from the config file, used in log messages and
420
876
D-Bus identifiers
421
877
secret: bytestring; sent verbatim (over TLS) to client
422
878
timeout: datetime.timedelta(); How long from last_checked_ok
423
879
until this client is disabled
424
extended_timeout: extra long timeout when password has been sent
880
extended_timeout: extra long timeout when secret has been sent
425
881
runtime_expansions: Allowed attributes for runtime expansion.
426
882
expires: datetime.datetime(); time (UTC) when a client will be
427
883
disabled, or None
884
server_settings: The server_settings dict from main()
428
885
"""
429
886
430
887
runtime_expansions = ("approval_delay", "approval_duration",
431
"created", "enabled", "fingerprint",
432
"host", "interval", "last_checked_ok",
888
"created", "enabled", "expires", "key_id",
889
"fingerprint", "host", "interval",
890
"last_approval_request", "last_checked_ok",
433
891
"last_enabled", "name", "timeout")
434
client_defaults = { "timeout": "5m",
435
"extended_timeout": "15m",
436
"interval": "2m",
437
"checker": "fping -q -- %%(host)s",
438
"host": "",
439
"approval_delay": "0s",
440
"approval_duration": "1s",
441
"approved_by_default": "True",
442
"enabled": "True",
443
}
444
445
def timeout_milliseconds(self):
446
"Return the 'timeout' attribute in milliseconds"
447
return timedelta_to_milliseconds(self.timeout)
448
449
def extended_timeout_milliseconds(self):
450
"Return the 'extended_timeout' attribute in milliseconds"
451
return timedelta_to_milliseconds(self.extended_timeout)
452
453
def interval_milliseconds(self):
454
"Return the 'interval' attribute in milliseconds"
455
return timedelta_to_milliseconds(self.interval)
456
457
def approval_delay_milliseconds(self):
458
return timedelta_to_milliseconds(self.approval_delay)
892
client_defaults = {
893
"timeout": "PT5M",
894
"extended_timeout": "PT15M",
895
"interval": "PT2M",
896
"checker": "fping -q -- %%(host)s",
897
"host": "",
898
"approval_delay": "PT0S",
899
"approval_duration": "PT1S",
900
"approved_by_default": "True",
901
"enabled": "True",
902
}
459
903
460
904
@staticmethod
461
905
def config_parser(config):
462
""" Construct a new dict of client settings of this form:
906
"""Construct a new dict of client settings of this form:
463
907
{ client_name: {setting_name: value, ...}, ...}
464
with exceptions for any special settings as defined above"""
908
with exceptions for any special settings as defined above.
909
NOTE: Must be a pure function. Must return the same result
910
value given the same arguments.
911
"""
465
912
settings = {}
466
913
for client_name in config.sections():
467
914
section = dict(config.items(client_name))
468
915
client = settings[client_name] = {}
469
916
470
917
client["host"] = section["host"]
471
918
# Reformat values from string types to Python types
472
919
client["approved_by_default"] = config.getboolean(
473
920
client_name, "approved_by_default")
474
client["enabled"] = config.getboolean(client_name, "enabled")
475
921
client["enabled"] = config.getboolean(client_name,
922
"enabled")
923
924
# Uppercase and remove spaces from key_id and fingerprint
925
# for later comparison purposes with return value from the
926
# key_id() and fingerprint() functions
927
client["key_id"] = (section.get("key_id", "").upper()
928
.replace(" ", ""))
476
929
client["fingerprint"] = (section["fingerprint"].upper()
477
930
.replace(" ", ""))
478
931
if "secret" in section:
479
client["secret"] = section["secret"].decode("base64")
932
client["secret"] = codecs.decode(section["secret"]
933
.encode("utf-8"),
934
"base64")
480
935
elif "secfile" in section:
481
936
with open(os.path.expanduser(os.path.expandvars
482
937
(section["secfile"])),
483
938
"rb") as secfile:
484
939
client["secret"] = secfile.read()
485
940
else:
486
raise TypeError("No secret or secfile for section %s"
487
% section)
941
raise TypeError("No secret or secfile for section {}"
942
.format(section))
488
943
client["timeout"] = string_to_delta(section["timeout"])
489
944
client["extended_timeout"] = string_to_delta(
490
945
section["extended_timeout"])
496
951
client["checker_command"] = section["checker"]
497
952
client["last_approval_request"] = None
498
953
client["last_checked_ok"] = None
499
client["last_checker_status"] = None
500
if client["enabled"]:
501
client["last_enabled"] = datetime.datetime.utcnow()
502
client["expires"] = (datetime.datetime.utcnow()
503
+ client["timeout"])
504
else:
505
client["last_enabled"] = None
506
client["expires"] = None
954
client["last_checker_status"] = -2
507
955
508
956
return settings
509
510
511
def __init__(self, settings, name = None):
512
"""Note: the 'checker' key in 'config' sets the
513
'checker_command' attribute and *not* the 'checker'
514
attribute."""
957
958
def __init__(self, settings, name=None, server_settings=None):
515
959
self.name = name
960
if server_settings is None:
961
server_settings = {}
962
self.server_settings = server_settings
516
963
# adding all client settings
517
for setting, value in settings.iteritems():
964
for setting, value in settings.items():
518
965
setattr(self, setting, value)
519
966
967
if self.enabled:
968
if not hasattr(self, "last_enabled"):
969
self.last_enabled = datetime.datetime.utcnow()
970
if not hasattr(self, "expires"):
971
self.expires = (datetime.datetime.utcnow()
972
+ self.timeout)
973
else:
974
self.last_enabled = None
975
self.expires = None
976
520
977
logger.debug("Creating client %r", self.name)
521
# Uppercase and remove spaces from fingerprint for later
522
# comparison purposes with return value from the fingerprint()
523
# function
978
logger.debug(" Key ID: %s", self.key_id)
524
979
logger.debug(" Fingerprint: %s", self.fingerprint)
525
self.created = settings.get("created", datetime.datetime.utcnow())
980
self.created = settings.get("created",
981
datetime.datetime.utcnow())
526
982
527
983
# attributes specific for this server instance
528
984
self.checker = None
532
988
self.current_checker_command = None
533
989
self.approved = None
534
990
self.approvals_pending = 0
535
self.changedstate = (multiprocessing_manager
536
.Condition(multiprocessing_manager
537
.Lock()))
538
self.client_structure = [attr for attr in
539
self.__dict__.iterkeys()
991
self.changedstate = multiprocessing_manager.Condition(
992
multiprocessing_manager.Lock())
993
self.client_structure = [attr
994
for attr in self.__dict__.keys()
540
995
if not attr.startswith("_")]
541
996
self.client_structure.append("client_structure")
542
543
for name, t in inspect.getmembers(type(self),
544
lambda obj:
545
isinstance(obj,
546
property)):
997
998
for name, t in inspect.getmembers(
999
type(self), lambda obj: isinstance(obj, property)):
547
1000
if not name.startswith("_"):
548
1001
self.client_structure.append(name)
549
1002
550
1003
# Send notice to process children that client state has changed
551
1004
def send_changedstate(self):
552
1005
with self.changedstate:
553
1006
self.changedstate.notify_all()
554
1007
555
1008
def enable(self):
556
1009
"""Start this client's checker and timeout hooks"""
557
1010
if getattr(self, "enabled", False):
558
1011
# Already enabled
559
1012
return
560
self.send_changedstate()
561
1013
self.expires = datetime.datetime.utcnow() + self.timeout
562
1014
self.enabled = True
563
1015
self.last_enabled = datetime.datetime.utcnow()
564
1016
self.init_checker()
565
1017
self.send_changedstate()
1018
566
1019
def disable(self, quiet=True):
567
1020
"""Disable this client."""
568
1021
if not getattr(self, "enabled", False):
569
1022
return False
570
1023
if not quiet:
571
self.send_changedstate()
572
if not quiet:
573
1024
logger.info("Disabling client %s", self.name)
574
if getattr(self, "disable_initiator_tag", False):
575
gobject.source_remove(self.disable_initiator_tag)
1025
if getattr(self, "disable_initiator_tag", None) is not None:
1026
GLib.source_remove(self.disable_initiator_tag)
576
1027
self.disable_initiator_tag = None
577
1028
self.expires = None
578
if getattr(self, "checker_initiator_tag", False):
579
gobject.source_remove(self.checker_initiator_tag)
1029
if getattr(self, "checker_initiator_tag", None) is not None:
1030
GLib.source_remove(self.checker_initiator_tag)
580
1031
self.checker_initiator_tag = None
581
1032
self.stop_checker()
582
1033
self.enabled = False
583
# Do not run this again if called by a gobject.timeout_add
1034
if not quiet:
1035
self.send_changedstate()
1036
# Do not run this again if called by a GLib.timeout_add
584
1037
return False
585
1038
586
1039
def __del__(self):
587
1040
self.disable()
588
1041
589
1042
def init_checker(self):
590
1043
# Schedule a new checker to be started an 'interval' from now,
591
1044
# and every interval from then on.
592
self.checker_initiator_tag = (gobject.timeout_add
593
(self.interval_milliseconds(),
594
self.start_checker))
1045
if self.checker_initiator_tag is not None:
1046
GLib.source_remove(self.checker_initiator_tag)
1047
self.checker_initiator_tag = GLib.timeout_add(
1048
random.randrange(int(self.interval.total_seconds() * 1000
1049
+ 1)),
1050
self.start_checker)
595
1051
# Schedule a disable() when 'timeout' has passed
596
self.disable_initiator_tag = (gobject.timeout_add
597
(self.timeout_milliseconds(),
598
self.disable))
1052
if self.disable_initiator_tag is not None:
1053
GLib.source_remove(self.disable_initiator_tag)
1054
self.disable_initiator_tag = GLib.timeout_add(
1055
int(self.timeout.total_seconds() * 1000), self.disable)
599
1056
# Also start a new checker *right now*.
600
1057
self.start_checker()
601
602
def checker_callback(self, pid, condition, command):
1058
1059
def checker_callback(self, source, condition, connection,
1060
command):
603
1061
"""The checker has completed, so take appropriate actions."""
1062
# Read return code from connection (see call_pipe)
1063
returncode = connection.recv()
1064
connection.close()
1065
if self.checker is not None:
1066
self.checker.join()
604
1067
self.checker_callback_tag = None
605
1068
self.checker = None
606
if os.WIFEXITED(condition):
607
self.last_checker_status = os.WEXITSTATUS(condition)
1069
1070
if returncode >= 0:
1071
self.last_checker_status = returncode
1072
self.last_checker_signal = None
608
1073
if self.last_checker_status == 0:
609
1074
logger.info("Checker for %(name)s succeeded",
610
1075
vars(self))
611
1076
self.checked_ok()
612
1077
else:
613
logger.info("Checker for %(name)s failed",
614
vars(self))
1078
logger.info("Checker for %(name)s failed", vars(self))
615
1079
else:
616
1080
self.last_checker_status = -1
1081
self.last_checker_signal = -returncode
617
1082
logger.warning("Checker for %(name)s crashed?",
618
1083
vars(self))
619
620
def checked_ok(self, timeout=None):
621
"""Bump up the timeout for this client.
622
623
This should only be called when the client has been seen,
624
alive and well.
625
"""
1084
return False
1085
1086
def checked_ok(self):
1087
"""Assert that the client has been seen, alive and well."""
1088
self.last_checked_ok = datetime.datetime.utcnow()
1089
self.last_checker_status = 0
1090
self.last_checker_signal = None
1091
self.bump_timeout()
1092
1093
def bump_timeout(self, timeout=None):
1094
"""Bump up the timeout for this client."""
626
1095
if timeout is None:
627
1096
timeout = self.timeout
628
self.last_checked_ok = datetime.datetime.utcnow()
629
1097
if self.disable_initiator_tag is not None:
630
gobject.source_remove(self.disable_initiator_tag)
1098
GLib.source_remove(self.disable_initiator_tag)
1099
self.disable_initiator_tag = None
631
1100
if getattr(self, "enabled", False):
632
self.disable_initiator_tag = (gobject.timeout_add
633
(timedelta_to_milliseconds
634
(timeout), self.disable))
1101
self.disable_initiator_tag = GLib.timeout_add(
1102
int(timeout.total_seconds() * 1000), self.disable)
635
1103
self.expires = datetime.datetime.utcnow() + timeout
636
1104
637
1105
def need_approval(self):
638
1106
self.last_approval_request = datetime.datetime.utcnow()
639
1107
640
1108
def start_checker(self):
641
1109
"""Start a new checker subprocess if one is not running.
642
1110
643
1111
If a checker already exists, leave it running and do
644
1112
nothing."""
645
1113
# The reason for not killing a running checker is that if we
646
# did that, then if a checker (for some reason) started
647
# running slowly and taking more than 'interval' time, the
648
# client would inevitably timeout, since no checker would get
649
# a chance to run to completion. If we instead leave running
1114
# did that, and if a checker (for some reason) started running
1115
# slowly and taking more than 'interval' time, then the client
1116
# would inevitably timeout, since no checker would get a
1117
# chance to run to completion. If we instead leave running
650
1118
# checkers alone, the checker would have to take more time
651
1119
# than 'timeout' for the client to be disabled, which is as it
652
1120
# should be.
653
654
# If a checker exists, make sure it is not a zombie
655
try:
656
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
657
except (AttributeError, OSError) as error:
658
if (isinstance(error, OSError)
659
and error.errno != errno.ECHILD):
660
raise error
661
else:
662
if pid:
663
logger.warning("Checker was a zombie")
664
gobject.source_remove(self.checker_callback_tag)
665
self.checker_callback(pid, status,
666
self.current_checker_command)
1121
1122
if self.checker is not None and not self.checker.is_alive():
1123
logger.warning("Checker was not alive; joining")
1124
self.checker.join()
1125
self.checker = None
667
1126
# Start a new checker if needed
668
1127
if self.checker is None:
1128
# Escape attributes for the shell
1129
escaped_attrs = {
1130
attr: re.escape(str(getattr(self, attr)))
1131
for attr in self.runtime_expansions}
669
1132
try:
670
# In case checker_command has exactly one % operator
671
command = self.checker_command % self.host
672
except TypeError:
673
# Escape attributes for the shell
674
escaped_attrs = dict(
675
(attr,
676
re.escape(unicode(str(getattr(self, attr, "")),
677
errors=
678
'replace')))
679
for attr in
680
self.runtime_expansions)
681
682
try:
683
command = self.checker_command % escaped_attrs
684
except TypeError as error:
685
logger.error('Could not format string "%s":'
686
' %s', self.checker_command, error)
687
return True # Try again later
1133
command = self.checker_command % escaped_attrs
1134
except TypeError as error:
1135
logger.error('Could not format string "%s"',
1136
self.checker_command,
1137
exc_info=error)
1138
return True # Try again later
688
1139
self.current_checker_command = command
689
try:
690
logger.info("Starting checker %r for %s",
691
command, self.name)
692
# We don't need to redirect stdout and stderr, since
693
# in normal mode, that is already done by daemon(),
694
# and in debug mode we don't want to. (Stdin is
695
# always replaced by /dev/null.)
696
self.checker = subprocess.Popen(command,
697
close_fds=True,
698
shell=True, cwd="/")
699
self.checker_callback_tag = (gobject.child_watch_add
700
(self.checker.pid,
701
self.checker_callback,
702
data=command))
703
# The checker may have completed before the gobject
704
# watch was added. Check for this.
705
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
706
if pid:
707
gobject.source_remove(self.checker_callback_tag)
708
self.checker_callback(pid, status, command)
709
except OSError as error:
710
logger.error("Failed to start subprocess: %s",
711
error)
712
# Re-run this periodically if run by gobject.timeout_add
1140
logger.info("Starting checker %r for %s", command,
1141
self.name)
1142
# We don't need to redirect stdout and stderr, since
1143
# in normal mode, that is already done by daemon(),
1144
# and in debug mode we don't want to. (Stdin is
1145
# always replaced by /dev/null.)
1146
# The exception is when not debugging but nevertheless
1147
# running in the foreground; use the previously
1148
# created wnull.
1149
popen_args = {"close_fds": True,
1150
"shell": True,
1151
"cwd": "/"}
1152
if (not self.server_settings["debug"]
1153
and self.server_settings["foreground"]):
1154
popen_args.update({"stdout": wnull,
1155
"stderr": wnull})
1156
pipe = multiprocessing.Pipe(duplex=False)
1157
self.checker = multiprocessing.Process(
1158
target=call_pipe,
1159
args=(pipe[1], subprocess.call, command),
1160
kwargs=popen_args)
1161
self.checker.start()
1162
self.checker_callback_tag = GLib.io_add_watch(
1163
GLib.IOChannel.unix_new(pipe[0].fileno()),
1164
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1165
self.checker_callback, pipe[0], command)
1166
# Re-run this periodically if run by GLib.timeout_add
713
1167
return True
714
1168
715
1169
def stop_checker(self):
716
1170
"""Force the checker process, if any, to stop."""
717
1171
if self.checker_callback_tag:
718
gobject.source_remove(self.checker_callback_tag)
1172
GLib.source_remove(self.checker_callback_tag)
719
1173
self.checker_callback_tag = None
720
1174
if getattr(self, "checker", None) is None:
721
1175
return
722
1176
logger.debug("Stopping checker for %(name)s", vars(self))
723
try:
724
os.kill(self.checker.pid, signal.SIGTERM)
725
#time.sleep(0.5)
726
#if self.checker.poll() is None:
727
# os.kill(self.checker.pid, signal.SIGKILL)
728
except OSError as error:
729
if error.errno != errno.ESRCH: # No such process
730
raise
1177
self.checker.terminate()
731
1178
self.checker = None
732
1179
733
1180
734
def dbus_service_property(dbus_interface, signature="v",
735
access="readwrite", byte_arrays=False):
1181
def dbus_service_property(dbus_interface,
1182
signature="v",
1183
access="readwrite",
1184
byte_arrays=False):
736
1185
"""Decorators for marking methods of a DBusObjectWithProperties to
737
1186
become properties on the D-Bus.
738
1187
739
1188
The decorated method will be called with no arguments by "Get"
740
1189
and with one argument by "Set".
741
1190
742
1191
The parameters, where they are supported, are the same as
743
1192
dbus.service.method, except there is only "signature", since the
744
1193
type from Get() and the type sent to Set() is the same.
747
1196
# "Set" method, so we fail early here:
748
1197
if byte_arrays and signature != "ay":
749
1198
raise ValueError("Byte arrays not supported for non-'ay'"
750
" signature %r" % signature)
1199
" signature {!r}".format(signature))
1200
751
1201
def decorator(func):
752
1202
func._dbus_is_property = True
753
1203
func._dbus_interface = dbus_interface
756
1206
func._dbus_name = func.__name__
757
1207
if func._dbus_name.endswith("_dbus_property"):
758
1208
func._dbus_name = func._dbus_name[:-14]
759
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
760
return func
1209
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1210
return func
1211
1212
return decorator
1213
1214
1215
def dbus_interface_annotations(dbus_interface):
1216
"""Decorator for marking functions returning interface annotations
1217
1218
Usage:
1219
1220
@dbus_interface_annotations("org.example.Interface")
1221
def _foo(self): # Function name does not matter
1222
return {"org.freedesktop.DBus.Deprecated": "true",
1223
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1224
"false"}
1225
"""
1226
1227
def decorator(func):
1228
func._dbus_is_interface = True
1229
func._dbus_interface = dbus_interface
1230
func._dbus_name = dbus_interface
1231
return func
1232
1233
return decorator
1234
1235
1236
def dbus_annotations(annotations):
1237
"""Decorator to annotate D-Bus methods, signals or properties
1238
Usage:
1239
1240
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1241
"org.freedesktop.DBus.Property."
1242
"EmitsChangedSignal": "false"})
1243
@dbus_service_property("org.example.Interface", signature="b",
1244
access="r")
1245
def Property_dbus_property(self):
1246
return dbus.Boolean(False)
1247
1248
See also the DBusObjectWithAnnotations class.
1249
"""
1250
1251
def decorator(func):
1252
func._dbus_annotations = annotations
1253
return func
1254
761
1255
return decorator
762
1256
763
1257
764
1258
class DBusPropertyException(dbus.exceptions.DBusException):
765
1259
"""A base class for D-Bus property-related exceptions
766
1260
"""
767
def __unicode__(self):
768
return unicode(str(self))
1261
pass
769
1262
770
1263
771
1264
class DBusPropertyAccessException(DBusPropertyException):
780
1273
pass
781
1274
782
1275
783
class DBusObjectWithProperties(dbus.service.Object):
1276
class DBusObjectWithAnnotations(dbus.service.Object):
1277
"""A D-Bus object with annotations.
1278
1279
Classes inheriting from this can use the dbus_annotations
1280
decorator to add annotations to methods or signals.
1281
"""
1282
1283
@staticmethod
1284
def _is_dbus_thing(thing):
1285
"""Returns a function testing if an attribute is a D-Bus thing
1286
1287
If called like _is_dbus_thing("method") it returns a function
1288
suitable for use as predicate to inspect.getmembers().
1289
"""
1290
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1291
False)
1292
1293
def _get_all_dbus_things(self, thing):
1294
"""Returns a generator of (name, attribute) pairs
1295
"""
1296
return ((getattr(athing.__get__(self), "_dbus_name", name),
1297
athing.__get__(self))
1298
for cls in self.__class__.__mro__
1299
for name, athing in
1300
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1301
1302
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1303
out_signature="s",
1304
path_keyword='object_path',
1305
connection_keyword='connection')
1306
def Introspect(self, object_path, connection):
1307
"""Overloading of standard D-Bus method.
1308
1309
Inserts annotation tags on methods and signals.
1310
"""
1311
xmlstring = dbus.service.Object.Introspect(self, object_path,
1312
connection)
1313
try:
1314
document = xml.dom.minidom.parseString(xmlstring)
1315
1316
for if_tag in document.getElementsByTagName("interface"):
1317
# Add annotation tags
1318
for typ in ("method", "signal"):
1319
for tag in if_tag.getElementsByTagName(typ):
1320
annots = dict()
1321
for name, prop in (self.
1322
_get_all_dbus_things(typ)):
1323
if (name == tag.getAttribute("name")
1324
and prop._dbus_interface
1325
== if_tag.getAttribute("name")):
1326
annots.update(getattr(
1327
prop, "_dbus_annotations", {}))
1328
for name, value in annots.items():
1329
ann_tag = document.createElement(
1330
"annotation")
1331
ann_tag.setAttribute("name", name)
1332
ann_tag.setAttribute("value", value)
1333
tag.appendChild(ann_tag)
1334
# Add interface annotation tags
1335
for annotation, value in dict(
1336
itertools.chain.from_iterable(
1337
annotations().items()
1338
for name, annotations
1339
in self._get_all_dbus_things("interface")
1340
if name == if_tag.getAttribute("name")
1341
)).items():
1342
ann_tag = document.createElement("annotation")
1343
ann_tag.setAttribute("name", annotation)
1344
ann_tag.setAttribute("value", value)
1345
if_tag.appendChild(ann_tag)
1346
# Fix argument name for the Introspect method itself
1347
if (if_tag.getAttribute("name")
1348
== dbus.INTROSPECTABLE_IFACE):
1349
for cn in if_tag.getElementsByTagName("method"):
1350
if cn.getAttribute("name") == "Introspect":
1351
for arg in cn.getElementsByTagName("arg"):
1352
if (arg.getAttribute("direction")
1353
== "out"):
1354
arg.setAttribute("name",
1355
"xml_data")
1356
xmlstring = document.toxml("utf-8")
1357
document.unlink()
1358
except (AttributeError, xml.dom.DOMException,
1359
xml.parsers.expat.ExpatError) as error:
1360
logger.error("Failed to override Introspection method",
1361
exc_info=error)
1362
return xmlstring
1363
1364
1365
class DBusObjectWithProperties(DBusObjectWithAnnotations):
784
1366
"""A D-Bus object with properties.
785
1367
786
1368
Classes inheriting from this can use the dbus_service_property
787
1369
decorator to expose methods as D-Bus properties. It exposes the
788
1370
standard Get(), Set(), and GetAll() methods on the D-Bus.
789
1371
"""
790
791
@staticmethod
792
def _is_dbus_property(obj):
793
return getattr(obj, "_dbus_is_property", False)
794
795
def _get_all_dbus_properties(self):
796
"""Returns a generator of (name, attribute) pairs
797
"""
798
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
799
for cls in self.__class__.__mro__
800
for name, prop in
801
inspect.getmembers(cls, self._is_dbus_property))
802
1372
803
1373
def _get_dbus_property(self, interface_name, property_name):
804
1374
"""Returns a bound method if one exists which is a D-Bus
805
1375
property with the specified name and interface.
806
1376
"""
807
for cls in self.__class__.__mro__:
808
for name, value in (inspect.getmembers
809
(cls, self._is_dbus_property)):
1377
for cls in self.__class__.__mro__:
1378
for name, value in inspect.getmembers(
1379
cls, self._is_dbus_thing("property")):
810
1380
if (value._dbus_name == property_name
811
1381
and value._dbus_interface == interface_name):
812
1382
return value.__get__(self)
813
1383
814
1384
# No such property
815
raise DBusPropertyNotFound(self.dbus_object_path + ":"
816
+ interface_name + "."
817
+ property_name)
818
819
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1385
raise DBusPropertyNotFound("{}:{}.{}".format(
1386
self.dbus_object_path, interface_name, property_name))
1387
1388
@classmethod
1389
def _get_all_interface_names(cls):
1390
"""Get a sequence of all interfaces supported by an object"""
1391
return (name for name in set(getattr(getattr(x, attr),
1392
"_dbus_interface", None)
1393
for x in (inspect.getmro(cls))
1394
for attr in dir(x))
1395
if name is not None)
1396
1397
@dbus.service.method(dbus.PROPERTIES_IFACE,
1398
in_signature="ss",
820
1399
out_signature="v")
821
1400
def Get(self, interface_name, property_name):
822
1401
"""Standard D-Bus property Get() method, see D-Bus standard.
828
1407
if not hasattr(value, "variant_level"):
829
1408
return value
830
1409
return type(value)(value, variant_level=value.variant_level+1)
831
1410
832
1411
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
833
1412
def Set(self, interface_name, property_name, value):
834
1413
"""Standard D-Bus property Set() method, see D-Bus standard.
840
1419
# The byte_arrays option is not supported yet on
841
1420
# signatures other than "ay".
842
1421
if prop._dbus_signature != "ay":
843
raise ValueError
844
value = dbus.ByteArray(''.join(unichr(byte)
845
for byte in value))
1422
raise ValueError("Byte arrays not supported for non-"
1423
"'ay' signature {!r}"
1424
.format(prop._dbus_signature))
1425
value = dbus.ByteArray(bytes(value))
846
1426
prop(value)
847
848
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1427
1428
@dbus.service.method(dbus.PROPERTIES_IFACE,
1429
in_signature="s",
849
1430
out_signature="a{sv}")
850
1431
def GetAll(self, interface_name):
851
1432
"""Standard D-Bus property GetAll() method, see D-Bus
852
1433
standard.
853
1434
854
1435
Note: Will not include properties with access="write".
855
1436
"""
856
1437
properties = {}
857
for name, prop in self._get_all_dbus_properties():
1438
for name, prop in self._get_all_dbus_things("property"):
858
1439
if (interface_name
859
1440
and interface_name != prop._dbus_interface):
860
1441
# Interface non-empty but did not match
866
1447
if not hasattr(value, "variant_level"):
867
1448
properties[name] = value
868
1449
continue
869
properties[name] = type(value)(value, variant_level=
870
value.variant_level+1)
1450
properties[name] = type(value)(
1451
value, variant_level=value.variant_level + 1)
871
1452
return dbus.Dictionary(properties, signature="sv")
872
1453
1454
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1455
def PropertiesChanged(self, interface_name, changed_properties,
1456
invalidated_properties):
1457
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1458
standard.
1459
"""
1460
pass
1461
873
1462
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
874
1463
out_signature="s",
875
1464
path_keyword='object_path',
876
1465
connection_keyword='connection')
877
1466
def Introspect(self, object_path, connection):
878
"""Standard D-Bus method, overloaded to insert property tags.
1467
"""Overloading of standard D-Bus method.
1468
1469
Inserts property tags and interface annotation tags.
879
1470
"""
880
xmlstring = dbus.service.Object.Introspect(self, object_path,
881
connection)
1471
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1472
object_path,
1473
connection)
882
1474
try:
883
1475
document = xml.dom.minidom.parseString(xmlstring)
1476
884
1477
def make_tag(document, name, prop):
885
1478
e = document.createElement("property")
886
1479
e.setAttribute("name", name)
887
1480
e.setAttribute("type", prop._dbus_signature)
888
1481
e.setAttribute("access", prop._dbus_access)
889
1482
return e
1483
890
1484
for if_tag in document.getElementsByTagName("interface"):
1485
# Add property tags
891
1486
for tag in (make_tag(document, name, prop)
892
1487
for name, prop
893
in self._get_all_dbus_properties()
1488
in self._get_all_dbus_things("property")
894
1489
if prop._dbus_interface
895
1490
== if_tag.getAttribute("name")):
896
1491
if_tag.appendChild(tag)
1492
# Add annotation tags for properties
1493
for tag in if_tag.getElementsByTagName("property"):
1494
annots = dict()
1495
for name, prop in self._get_all_dbus_things(
1496
"property"):
1497
if (name == tag.getAttribute("name")
1498
and prop._dbus_interface
1499
== if_tag.getAttribute("name")):
1500
annots.update(getattr(
1501
prop, "_dbus_annotations", {}))
1502
for name, value in annots.items():
1503
ann_tag = document.createElement(
1504
"annotation")
1505
ann_tag.setAttribute("name", name)
1506
ann_tag.setAttribute("value", value)
1507
tag.appendChild(ann_tag)
897
1508
# Add the names to the return values for the
898
1509
# "org.freedesktop.DBus.Properties" methods
899
1510
if (if_tag.getAttribute("name")
914
1525
except (AttributeError, xml.dom.DOMException,
915
1526
xml.parsers.expat.ExpatError) as error:
916
1527
logger.error("Failed to override Introspection method",
917
error)
918
return xmlstring
919
920
921
def datetime_to_dbus (dt, variant_level=0):
1528
exc_info=error)
1529
return xmlstring
1530
1531
1532
try:
1533
dbus.OBJECT_MANAGER_IFACE
1534
except AttributeError:
1535
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1536
1537
1538
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1539
"""A D-Bus object with an ObjectManager.
1540
1541
Classes inheriting from this exposes the standard
1542
GetManagedObjects call and the InterfacesAdded and
1543
InterfacesRemoved signals on the standard
1544
"org.freedesktop.DBus.ObjectManager" interface.
1545
1546
Note: No signals are sent automatically; they must be sent
1547
manually.
1548
"""
1549
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1550
out_signature="a{oa{sa{sv}}}")
1551
def GetManagedObjects(self):
1552
"""This function must be overridden"""
1553
raise NotImplementedError()
1554
1555
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1556
signature="oa{sa{sv}}")
1557
def InterfacesAdded(self, object_path, interfaces_and_properties):
1558
pass
1559
1560
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1561
def InterfacesRemoved(self, object_path, interfaces):
1562
pass
1563
1564
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1565
out_signature="s",
1566
path_keyword='object_path',
1567
connection_keyword='connection')
1568
def Introspect(self, object_path, connection):
1569
"""Overloading of standard D-Bus method.
1570
1571
Override return argument name of GetManagedObjects to be
1572
"objpath_interfaces_and_properties"
1573
"""
1574
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1575
object_path,
1576
connection)
1577
try:
1578
document = xml.dom.minidom.parseString(xmlstring)
1579
1580
for if_tag in document.getElementsByTagName("interface"):
1581
# Fix argument name for the GetManagedObjects method
1582
if (if_tag.getAttribute("name")
1583
== dbus.OBJECT_MANAGER_IFACE):
1584
for cn in if_tag.getElementsByTagName("method"):
1585
if (cn.getAttribute("name")
1586
== "GetManagedObjects"):
1587
for arg in cn.getElementsByTagName("arg"):
1588
if (arg.getAttribute("direction")
1589
== "out"):
1590
arg.setAttribute(
1591
"name",
1592
"objpath_interfaces"
1593
"_and_properties")
1594
xmlstring = document.toxml("utf-8")
1595
document.unlink()
1596
except (AttributeError, xml.dom.DOMException,
1597
xml.parsers.expat.ExpatError) as error:
1598
logger.error("Failed to override Introspection method",
1599
exc_info=error)
1600
return xmlstring
1601
1602
1603
def datetime_to_dbus(dt, variant_level=0):
922
1604
"""Convert a UTC datetime.datetime() to a D-Bus type."""
923
1605
if dt is None:
924
return dbus.String("", variant_level = variant_level)
925
return dbus.String(dt.isoformat(),
926
variant_level=variant_level)
927
928
929
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
930
.__metaclass__):
931
"""Applied to an empty subclass of a D-Bus object, this metaclass
932
will add additional D-Bus attributes matching a certain pattern.
1606
return dbus.String("", variant_level=variant_level)
1607
return dbus.String(dt.isoformat(), variant_level=variant_level)
1608
1609
1610
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1611
"""A class decorator; applied to a subclass of
1612
dbus.service.Object, it will add alternate D-Bus attributes with
1613
interface names according to the "alt_interface_names" mapping.
1614
Usage:
1615
1616
@alternate_dbus_interfaces({"org.example.Interface":
1617
"net.example.AlternateInterface"})
1618
class SampleDBusObject(dbus.service.Object):
1619
@dbus.service.method("org.example.Interface")
1620
def SampleDBusMethod():
1621
pass
1622
1623
The above "SampleDBusMethod" on "SampleDBusObject" will be
1624
reachable via two interfaces: "org.example.Interface" and
1625
"net.example.AlternateInterface", the latter of which will have
1626
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1627
"true", unless "deprecate" is passed with a False value.
1628
1629
This works for methods and signals, and also for D-Bus properties
1630
(from DBusObjectWithProperties) and interfaces (from the
1631
dbus_interface_annotations decorator).
933
1632
"""
934
def __new__(mcs, name, bases, attr):
935
# Go through all the base classes which could have D-Bus
936
# methods, signals, or properties in them
937
for base in (b for b in bases
938
if issubclass(b, dbus.service.Object)):
939
# Go though all attributes of the base class
940
for attrname, attribute in inspect.getmembers(base):
1633
1634
def wrapper(cls):
1635
for orig_interface_name, alt_interface_name in (
1636
alt_interface_names.items()):
1637
attr = {}
1638
interface_names = set()
1639
# Go though all attributes of the class
1640
for attrname, attribute in inspect.getmembers(cls):
941
1641
# Ignore non-D-Bus attributes, and D-Bus attributes
942
1642
# with the wrong interface name
943
1643
if (not hasattr(attribute, "_dbus_interface")
944
or not attribute._dbus_interface
945
.startswith("se.recompile.Mandos")):
1644
or not attribute._dbus_interface.startswith(
1645
orig_interface_name)):
946
1646
continue
947
1647
# Create an alternate D-Bus interface name based on
948
1648
# the current name
949
alt_interface = (attribute._dbus_interface
950
.replace("se.recompile.Mandos",
951
"se.bsnet.fukt.Mandos"))
1649
alt_interface = attribute._dbus_interface.replace(
1650
orig_interface_name, alt_interface_name)
1651
interface_names.add(alt_interface)
952
1652
# Is this a D-Bus signal?
953
1653
if getattr(attribute, "_dbus_is_signal", False):
954
# Extract the original non-method function by
955
# black magic
956
nonmethod_func = (dict(
1654
# Extract the original non-method undecorated
1655
# function by black magic
1656
if sys.version_info.major == 2:
1657
nonmethod_func = (dict(
957
1658
zip(attribute.func_code.co_freevars,
958
attribute.__closure__))["func"]
959
.cell_contents)
1659
attribute.__closure__))
1660
["func"].cell_contents)
1661
else:
1662
nonmethod_func = (dict(
1663
zip(attribute.__code__.co_freevars,
1664
attribute.__closure__))
1665
["func"].cell_contents)
960
1666
# Create a new, but exactly alike, function
961
1667
# object, and decorate it to be a new D-Bus signal
962
1668
# with the alternate D-Bus interface name
963
new_function = (dbus.service.signal
964
(alt_interface,
965
attribute._dbus_signature)
966
(types.FunctionType(
967
nonmethod_func.func_code,
968
nonmethod_func.func_globals,
969
nonmethod_func.func_name,
970
nonmethod_func.func_defaults,
971
nonmethod_func.func_closure)))
1669
new_function = copy_function(nonmethod_func)
1670
new_function = (dbus.service.signal(
1671
alt_interface,
1672
attribute._dbus_signature)(new_function))
1673
# Copy annotations, if any
1674
try:
1675
new_function._dbus_annotations = dict(
1676
attribute._dbus_annotations)
1677
except AttributeError:
1678
pass
1679
972
1680
# Define a creator of a function to call both the
973
# old and new functions, so both the old and new
974
# signals gets sent when the function is called
1681
# original and alternate functions, so both the
1682
# original and alternate signals gets sent when
1683
# the function is called
975
1684
def fixscope(func1, func2):
976
1685
"""This function is a scope container to pass
977
1686
func1 and func2 to the "call_both" function
978
1687
outside of its arguments"""
1688
1689
@functools.wraps(func2)
979
1690
def call_both(*args, **kwargs):
980
1691
"""This function will emit two D-Bus
981
1692
signals by calling func1 and func2"""
982
1693
func1(*args, **kwargs)
983
1694
func2(*args, **kwargs)
1695
# Make wrapper function look like a D-Bus
1696
# signal
1697
for name, attr in inspect.getmembers(func2):
1698
if name.startswith("_dbus_"):
1699
setattr(call_both, name, attr)
1700
984
1701
return call_both
985
1702
# Create the "call_both" function and add it to
986
1703
# the class
987
attr[attrname] = fixscope(attribute,
988
new_function)
1704
attr[attrname] = fixscope(attribute, new_function)
989
1705
# Is this a D-Bus method?
990
1706
elif getattr(attribute, "_dbus_is_method", False):
991
1707
# Create a new, but exactly alike, function
992
1708
# object. Decorate it to be a new D-Bus method
993
1709
# with the alternate D-Bus interface name. Add it
994
1710
# to the class.
995
attr[attrname] = (dbus.service.method
996
(alt_interface,
997
attribute._dbus_in_signature,
998
attribute._dbus_out_signature)
999
(types.FunctionType
1000
(attribute.func_code,
1001
attribute.func_globals,
1002
attribute.func_name,
1003
attribute.func_defaults,
1004
attribute.func_closure)))
1711
attr[attrname] = (
1712
dbus.service.method(
1713
alt_interface,
1714
attribute._dbus_in_signature,
1715
attribute._dbus_out_signature)
1716
(copy_function(attribute)))
1717
# Copy annotations, if any
1718
try:
1719
attr[attrname]._dbus_annotations = dict(
1720
attribute._dbus_annotations)
1721
except AttributeError:
1722
pass
1005
1723
# Is this a D-Bus property?
1006
1724
elif getattr(attribute, "_dbus_is_property", False):
1007
1725
# Create a new, but exactly alike, function
1008
1726
# object, and decorate it to be a new D-Bus
1009
1727
# property with the alternate D-Bus interface
1010
1728
# name. Add it to the class.
1011
attr[attrname] = (dbus_service_property
1012
(alt_interface,
1013
attribute._dbus_signature,
1014
attribute._dbus_access,
1015
attribute
1016
._dbus_get_args_options
1017
["byte_arrays"])
1018
(types.FunctionType
1019
(attribute.func_code,
1020
attribute.func_globals,
1021
attribute.func_name,
1022
attribute.func_defaults,
1023
attribute.func_closure)))
1024
return type.__new__(mcs, name, bases, attr)
1025
1026
1729
attr[attrname] = (dbus_service_property(
1730
alt_interface, attribute._dbus_signature,
1731
attribute._dbus_access,
1732
attribute._dbus_get_args_options
1733
["byte_arrays"])
1734
(copy_function(attribute)))
1735
# Copy annotations, if any
1736
try:
1737
attr[attrname]._dbus_annotations = dict(
1738
attribute._dbus_annotations)
1739
except AttributeError:
1740
pass
1741
# Is this a D-Bus interface?
1742
elif getattr(attribute, "_dbus_is_interface", False):
1743
# Create a new, but exactly alike, function
1744
# object. Decorate it to be a new D-Bus interface
1745
# with the alternate D-Bus interface name. Add it
1746
# to the class.
1747
attr[attrname] = (
1748
dbus_interface_annotations(alt_interface)
1749
(copy_function(attribute)))
1750
if deprecate:
1751
# Deprecate all alternate interfaces
1752
iname = "_AlternateDBusNames_interface_annotation{}"
1753
for interface_name in interface_names:
1754
1755
@dbus_interface_annotations(interface_name)
1756
def func(self):
1757
return {"org.freedesktop.DBus.Deprecated":
1758
"true"}
1759
# Find an unused name
1760
for aname in (iname.format(i)
1761
for i in itertools.count()):
1762
if aname not in attr:
1763
attr[aname] = func
1764
break
1765
if interface_names:
1766
# Replace the class with a new subclass of it with
1767
# methods, signals, etc. as created above.
1768
if sys.version_info.major == 2:
1769
cls = type(b"{}Alternate".format(cls.__name__),
1770
(cls, ), attr)
1771
else:
1772
cls = type("{}Alternate".format(cls.__name__),
1773
(cls, ), attr)
1774
return cls
1775
1776
return wrapper
1777
1778
1779
@alternate_dbus_interfaces({"se.recompile.Mandos":
1780
"se.bsnet.fukt.Mandos"})
1027
1781
class ClientDBus(Client, DBusObjectWithProperties):
1028
1782
"""A Client class using D-Bus
1029
1783
1030
1784
Attributes:
1031
1785
dbus_object_path: dbus.ObjectPath
1032
1786
bus: dbus.SystemBus()
1033
1787
"""
1034
1788
1035
1789
runtime_expansions = (Client.runtime_expansions
1036
+ ("dbus_object_path",))
1037
1790
+ ("dbus_object_path", ))
1791
1792
_interface = "se.recompile.Mandos.Client"
1793
1038
1794
# dbus.service.Object doesn't use super(), so we can't either.
1039
1040
def __init__(self, bus = None, *args, **kwargs):
1795
1796
def __init__(self, bus=None, *args, **kwargs):
1041
1797
self.bus = bus
1042
1798
Client.__init__(self, *args, **kwargs)
1043
self._approvals_pending = 0
1044
1045
self._approvals_pending = 0
1046
1799
# Only now, when this client is initialized, can it show up on
1047
1800
# the D-Bus
1048
client_object_name = unicode(self.name).translate(
1801
client_object_name = str(self.name).translate(
1049
1802
{ord("."): ord("_"),
1050
1803
ord("-"): ord("_")})
1051
self.dbus_object_path = (dbus.ObjectPath
1052
("/clients/" + client_object_name))
1804
self.dbus_object_path = dbus.ObjectPath(
1805
"/clients/" + client_object_name)
1053
1806
DBusObjectWithProperties.__init__(self, self.bus,
1054
1807
self.dbus_object_path)
1055
1056
def notifychangeproperty(transform_func,
1057
dbus_name, type_func=lambda x: x,
1058
variant_level=1):
1808
1809
def notifychangeproperty(transform_func, dbus_name,
1810
type_func=lambda x: x,
1811
variant_level=1,
1812
invalidate_only=False,
1813
_interface=_interface):
1059
1814
""" Modify a variable so that it's a property which announces
1060
1815
its changes to DBus.
1061
1816
1062
1817
transform_fun: Function that takes a value and a variant_level
1063
1818
and transforms it to a D-Bus type.
1064
1819
dbus_name: D-Bus name of the variable
1066
1821
to the D-Bus. Default: no transform
1067
1822
variant_level: D-Bus variant level. Default: 1
1068
1823
"""
1069
attrname = "_{0}".format(dbus_name)
1824
attrname = "_{}".format(dbus_name)
1825
1070
1826
def setter(self, value):
1071
1827
if hasattr(self, "dbus_object_path"):
1072
1828
if (not hasattr(self, attrname) or
1073
1829
type_func(getattr(self, attrname, None))
1074
1830
!= type_func(value)):
1075
dbus_value = transform_func(type_func(value),
1076
variant_level
1077
=variant_level)
1078
self.PropertyChanged(dbus.String(dbus_name),
1079
dbus_value)
1831
if invalidate_only:
1832
self.PropertiesChanged(
1833
_interface, dbus.Dictionary(),
1834
dbus.Array((dbus_name, )))
1835
else:
1836
dbus_value = transform_func(
1837
type_func(value),
1838
variant_level=variant_level)
1839
self.PropertyChanged(dbus.String(dbus_name),
1840
dbus_value)
1841
self.PropertiesChanged(
1842
_interface,
1843
dbus.Dictionary({dbus.String(dbus_name):
1844
dbus_value}),
1845
dbus.Array())
1080
1846
setattr(self, attrname, value)
1081
1847
1082
1848
return property(lambda self: getattr(self, attrname), setter)
1083
1084
1849
1085
1850
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1086
1851
approvals_pending = notifychangeproperty(dbus.Boolean,
1087
1852
"ApprovalPending",
1088
type_func = bool)
1853
type_func=bool)
1089
1854
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1090
1855
last_enabled = notifychangeproperty(datetime_to_dbus,
1091
1856
"LastEnabled")
1092
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1093
type_func = lambda checker:
1094
checker is not None)
1857
checker = notifychangeproperty(
1858
dbus.Boolean, "CheckerRunning",
1859
type_func=lambda checker: checker is not None)
1095
1860
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1096
1861
"LastCheckedOK")
1862
last_checker_status = notifychangeproperty(dbus.Int16,
1863
"LastCheckerStatus")
1097
1864
last_approval_request = notifychangeproperty(
1098
1865
datetime_to_dbus, "LastApprovalRequest")
1099
1866
approved_by_default = notifychangeproperty(dbus.Boolean,
1100
1867
"ApprovedByDefault")
1101
approval_delay = notifychangeproperty(dbus.UInt64,
1102
"ApprovalDelay",
1103
type_func =
1104
timedelta_to_milliseconds)
1868
approval_delay = notifychangeproperty(
1869
dbus.UInt64, "ApprovalDelay",
1870
type_func=lambda td: td.total_seconds() * 1000)
1105
1871
approval_duration = notifychangeproperty(
1106
1872
dbus.UInt64, "ApprovalDuration",
1107
type_func = timedelta_to_milliseconds)
1873
type_func=lambda td: td.total_seconds() * 1000)
1108
1874
host = notifychangeproperty(dbus.String, "Host")
1109
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1110
type_func =
1111
timedelta_to_milliseconds)
1875
timeout = notifychangeproperty(
1876
dbus.UInt64, "Timeout",
1877
type_func=lambda td: td.total_seconds() * 1000)
1112
1878
extended_timeout = notifychangeproperty(
1113
1879
dbus.UInt64, "ExtendedTimeout",
1114
type_func = timedelta_to_milliseconds)
1115
interval = notifychangeproperty(dbus.UInt64,
1116
"Interval",
1117
type_func =
1118
timedelta_to_milliseconds)
1880
type_func=lambda td: td.total_seconds() * 1000)
1881
interval = notifychangeproperty(
1882
dbus.UInt64, "Interval",
1883
type_func=lambda td: td.total_seconds() * 1000)
1119
1884
checker_command = notifychangeproperty(dbus.String, "Checker")
1120
1885
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1886
invalidate_only=True)
1887
1121
1888
del notifychangeproperty
1122
1889
1123
1890
def __del__(self, *args, **kwargs):
1124
1891
try:
1125
1892
self.remove_from_connection()
1128
1895
if hasattr(DBusObjectWithProperties, "__del__"):
1129
1896
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1130
1897
Client.__del__(self, *args, **kwargs)
1131
1132
def checker_callback(self, pid, condition, command,
1133
*args, **kwargs):
1134
self.checker_callback_tag = None
1135
self.checker = None
1136
if os.WIFEXITED(condition):
1137
exitstatus = os.WEXITSTATUS(condition)
1898
1899
def checker_callback(self, source, condition,
1900
connection, command, *args, **kwargs):
1901
ret = Client.checker_callback(self, source, condition,
1902
connection, command, *args,
1903
**kwargs)
1904
exitstatus = self.last_checker_status
1905
if exitstatus >= 0:
1138
1906
# Emit D-Bus signal
1139
1907
self.CheckerCompleted(dbus.Int16(exitstatus),
1140
dbus.Int64(condition),
1908
# This is specific to GNU libC
1909
dbus.Int64(exitstatus << 8),
1141
1910
dbus.String(command))
1142
1911
else:
1143
1912
# Emit D-Bus signal
1144
1913
self.CheckerCompleted(dbus.Int16(-1),
1145
dbus.Int64(condition),
1914
dbus.Int64(
1915
# This is specific to GNU libC
1916
(exitstatus << 8)
1917
| self.last_checker_signal),
1146
1918
dbus.String(command))
1147
1148
return Client.checker_callback(self, pid, condition, command,
1149
*args, **kwargs)
1150
1919
return ret
1920
1151
1921
def start_checker(self, *args, **kwargs):
1152
old_checker = self.checker
1153
if self.checker is not None:
1154
old_checker_pid = self.checker.pid
1155
else:
1156
old_checker_pid = None
1922
old_checker_pid = getattr(self.checker, "pid", None)
1157
1923
r = Client.start_checker(self, *args, **kwargs)
1158
1924
# Only if new checker process was started
1159
1925
if (self.checker is not None
1161
1927
# Emit D-Bus signal
1162
1928
self.CheckerStarted(self.current_checker_command)
1163
1929
return r
1164
1930
1165
1931
def _reset_approved(self):
1166
1932
self.approved = None
1167
1933
return False
1168
1934
1169
1935
def approve(self, value=True):
1170
self.send_changedstate()
1171
1936
self.approved = value
1172
gobject.timeout_add(timedelta_to_milliseconds
1173
(self.approval_duration),
1174
self._reset_approved)
1175
1176
1177
## D-Bus methods, signals & properties
1178
_interface = "se.recompile.Mandos.Client"
1179
1180
## Signals
1181
1937
GLib.timeout_add(int(self.approval_duration.total_seconds()
1938
* 1000), self._reset_approved)
1939
self.send_changedstate()
1940
1941
# D-Bus methods, signals & properties
1942
1943
# Interfaces
1944
1945
# Signals
1946
1182
1947
# CheckerCompleted - signal
1183
1948
@dbus.service.signal(_interface, signature="nxs")
1184
1949
def CheckerCompleted(self, exitcode, waitstatus, command):
1185
1950
"D-Bus signal"
1186
1951
pass
1187
1952
1188
1953
# CheckerStarted - signal
1189
1954
@dbus.service.signal(_interface, signature="s")
1190
1955
def CheckerStarted(self, command):
1191
1956
"D-Bus signal"
1192
1957
pass
1193
1958
1194
1959
# PropertyChanged - signal
1960
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1195
1961
@dbus.service.signal(_interface, signature="sv")
1196
1962
def PropertyChanged(self, property, value):
1197
1963
"D-Bus signal"
1198
1964
pass
1199
1965
1200
1966
# GotSecret - signal
1201
1967
@dbus.service.signal(_interface)
1202
1968
def GotSecret(self):
1205
1971
server to mandos-client
1206
1972
"""
1207
1973
pass
1208
1974
1209
1975
# Rejected - signal
1210
1976
@dbus.service.signal(_interface, signature="s")
1211
1977
def Rejected(self, reason):
1212
1978
"D-Bus signal"
1213
1979
pass
1214
1980
1215
1981
# NeedApproval - signal
1216
1982
@dbus.service.signal(_interface, signature="tb")
1217
1983
def NeedApproval(self, timeout, default):
1218
1984
"D-Bus signal"
1219
1985
return self.need_approval()
1220
1221
# NeRwequest - signal
1222
@dbus.service.signal(_interface, signature="s")
1223
def NewRequest(self, ip):
1224
"""D-Bus signal
1225
Is sent after a client request a password.
1226
"""
1227
pass
1228
1229
## Methods
1230
1986
1987
# Methods
1988
1231
1989
# Approve - method
1232
1990
@dbus.service.method(_interface, in_signature="b")
1233
1991
def Approve(self, value):
1234
1992
self.approve(value)
1235
1993
1236
1994
# CheckedOK - method
1237
1995
@dbus.service.method(_interface)
1238
1996
def CheckedOK(self):
1239
1997
self.checked_ok()
1240
1998
1241
1999
# Enable - method
2000
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1242
2001
@dbus.service.method(_interface)
1243
2002
def Enable(self):
1244
2003
"D-Bus method"
1245
2004
self.enable()
1246
2005
1247
2006
# StartChecker - method
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1248
2008
@dbus.service.method(_interface)
1249
2009
def StartChecker(self):
1250
2010
"D-Bus method"
1251
2011
self.start_checker()
1252
2012
1253
2013
# Disable - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1254
2015
@dbus.service.method(_interface)
1255
2016
def Disable(self):
1256
2017
"D-Bus method"
1257
2018
self.disable()
1258
2019
1259
2020
# StopChecker - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1260
2022
@dbus.service.method(_interface)
1261
2023
def StopChecker(self):
1262
2024
self.stop_checker()
1263
1264
## Properties
1265
2025
2026
# Properties
2027
1266
2028
# ApprovalPending - property
1267
2029
@dbus_service_property(_interface, signature="b", access="read")
1268
2030
def ApprovalPending_dbus_property(self):
1269
2031
return dbus.Boolean(bool(self.approvals_pending))
1270
2032
1271
2033
# ApprovedByDefault - property
1272
@dbus_service_property(_interface, signature="b",
2034
@dbus_service_property(_interface,
2035
signature="b",
1273
2036
access="readwrite")
1274
2037
def ApprovedByDefault_dbus_property(self, value=None):
1275
2038
if value is None: # get
1276
2039
return dbus.Boolean(self.approved_by_default)
1277
2040
self.approved_by_default = bool(value)
1278
2041
1279
2042
# ApprovalDelay - property
1280
@dbus_service_property(_interface, signature="t",
2043
@dbus_service_property(_interface,
2044
signature="t",
1281
2045
access="readwrite")
1282
2046
def ApprovalDelay_dbus_property(self, value=None):
1283
2047
if value is None: # get
1284
return dbus.UInt64(self.approval_delay_milliseconds())
2048
return dbus.UInt64(self.approval_delay.total_seconds()
2049
* 1000)
1285
2050
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1286
2051
1287
2052
# ApprovalDuration - property
1288
@dbus_service_property(_interface, signature="t",
2053
@dbus_service_property(_interface,
2054
signature="t",
1289
2055
access="readwrite")
1290
2056
def ApprovalDuration_dbus_property(self, value=None):
1291
2057
if value is None: # get
1292
return dbus.UInt64(timedelta_to_milliseconds(
1293
self.approval_duration))
2058
return dbus.UInt64(self.approval_duration.total_seconds()
2059
* 1000)
1294
2060
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1295
2061
1296
2062
# Name - property
2063
@dbus_annotations(
2064
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1297
2065
@dbus_service_property(_interface, signature="s", access="read")
1298
2066
def Name_dbus_property(self):
1299
2067
return dbus.String(self.name)
1300
2068
2069
# KeyID - property
2070
@dbus_annotations(
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2072
@dbus_service_property(_interface, signature="s", access="read")
2073
def KeyID_dbus_property(self):
2074
return dbus.String(self.key_id)
2075
1301
2076
# Fingerprint - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1302
2079
@dbus_service_property(_interface, signature="s", access="read")
1303
2080
def Fingerprint_dbus_property(self):
1304
2081
return dbus.String(self.fingerprint)
1305
2082
1306
2083
# Host - property
1307
@dbus_service_property(_interface, signature="s",
2084
@dbus_service_property(_interface,
2085
signature="s",
1308
2086
access="readwrite")
1309
2087
def Host_dbus_property(self, value=None):
1310
2088
if value is None: # get
1311
2089
return dbus.String(self.host)
1312
self.host = unicode(value)
1313
2090
self.host = str(value)
2091
1314
2092
# Created - property
2093
@dbus_annotations(
2094
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1315
2095
@dbus_service_property(_interface, signature="s", access="read")
1316
2096
def Created_dbus_property(self):
1317
2097
return datetime_to_dbus(self.created)
1318
2098
1319
2099
# LastEnabled - property
1320
2100
@dbus_service_property(_interface, signature="s", access="read")
1321
2101
def LastEnabled_dbus_property(self):
1322
2102
return datetime_to_dbus(self.last_enabled)
1323
2103
1324
2104
# Enabled - property
1325
@dbus_service_property(_interface, signature="b",
2105
@dbus_service_property(_interface,
2106
signature="b",
1326
2107
access="readwrite")
1327
2108
def Enabled_dbus_property(self, value=None):
1328
2109
if value is None: # get
1331
2112
self.enable()
1332
2113
else:
1333
2114
self.disable()
1334
2115
1335
2116
# LastCheckedOK - property
1336
@dbus_service_property(_interface, signature="s",
2117
@dbus_service_property(_interface,
2118
signature="s",
1337
2119
access="readwrite")
1338
2120
def LastCheckedOK_dbus_property(self, value=None):
1339
2121
if value is not None:
1340
2122
self.checked_ok()
1341
2123
return
1342
2124
return datetime_to_dbus(self.last_checked_ok)
1343
2125
2126
# LastCheckerStatus - property
2127
@dbus_service_property(_interface, signature="n", access="read")
2128
def LastCheckerStatus_dbus_property(self):
2129
return dbus.Int16(self.last_checker_status)
2130
1344
2131
# Expires - property
1345
2132
@dbus_service_property(_interface, signature="s", access="read")
1346
2133
def Expires_dbus_property(self):
1347
2134
return datetime_to_dbus(self.expires)
1348
2135
1349
2136
# LastApprovalRequest - property
1350
2137
@dbus_service_property(_interface, signature="s", access="read")
1351
2138
def LastApprovalRequest_dbus_property(self):
1352
2139
return datetime_to_dbus(self.last_approval_request)
1353
2140
1354
2141
# Timeout - property
1355
@dbus_service_property(_interface, signature="t",
2142
@dbus_service_property(_interface,
2143
signature="t",
1356
2144
access="readwrite")
1357
2145
def Timeout_dbus_property(self, value=None):
1358
2146
if value is None: # get
1359
return dbus.UInt64(self.timeout_milliseconds())
2147
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2148
old_timeout = self.timeout
1360
2149
self.timeout = datetime.timedelta(0, 0, 0, value)
1361
if getattr(self, "disable_initiator_tag", None) is None:
1362
return
1363
# Reschedule timeout
1364
gobject.source_remove(self.disable_initiator_tag)
1365
self.disable_initiator_tag = None
1366
self.expires = None
1367
time_to_die = timedelta_to_milliseconds((self
1368
.last_checked_ok
1369
+ self.timeout)
1370
- datetime.datetime
1371
.utcnow())
1372
if time_to_die <= 0:
1373
# The timeout has passed
1374
self.disable()
1375
else:
1376
self.expires = (datetime.datetime.utcnow()
1377
+ datetime.timedelta(milliseconds =
1378
time_to_die))
1379
self.disable_initiator_tag = (gobject.timeout_add
1380
(time_to_die, self.disable))
1381
2150
# Reschedule disabling
2151
if self.enabled:
2152
now = datetime.datetime.utcnow()
2153
self.expires += self.timeout - old_timeout
2154
if self.expires <= now:
2155
# The timeout has passed
2156
self.disable()
2157
else:
2158
if (getattr(self, "disable_initiator_tag", None)
2159
is None):
2160
return
2161
GLib.source_remove(self.disable_initiator_tag)
2162
self.disable_initiator_tag = GLib.timeout_add(
2163
int((self.expires - now).total_seconds() * 1000),
2164
self.disable)
2165
1382
2166
# ExtendedTimeout - property
1383
@dbus_service_property(_interface, signature="t",
2167
@dbus_service_property(_interface,
2168
signature="t",
1384
2169
access="readwrite")
1385
2170
def ExtendedTimeout_dbus_property(self, value=None):
1386
2171
if value is None: # get
1387
return dbus.UInt64(self.extended_timeout_milliseconds())
2172
return dbus.UInt64(self.extended_timeout.total_seconds()
2173
* 1000)
1388
2174
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1389
2175
1390
2176
# Interval - property
1391
@dbus_service_property(_interface, signature="t",
2177
@dbus_service_property(_interface,
2178
signature="t",
1392
2179
access="readwrite")
1393
2180
def Interval_dbus_property(self, value=None):
1394
2181
if value is None: # get
1395
return dbus.UInt64(self.interval_milliseconds())
2182
return dbus.UInt64(self.interval.total_seconds() * 1000)
1396
2183
self.interval = datetime.timedelta(0, 0, 0, value)
1397
2184
if getattr(self, "checker_initiator_tag", None) is None:
1398
2185
return
1399
2186
if self.enabled:
1400
2187
# Reschedule checker run
1401
gobject.source_remove(self.checker_initiator_tag)
1402
self.checker_initiator_tag = (gobject.timeout_add
1403
(value, self.start_checker))
1404
self.start_checker() # Start one now, too
1405
2188
GLib.source_remove(self.checker_initiator_tag)
2189
self.checker_initiator_tag = GLib.timeout_add(
2190
value, self.start_checker)
2191
self.start_checker() # Start one now, too
2192
1406
2193
# Checker - property
1407
@dbus_service_property(_interface, signature="s",
2194
@dbus_service_property(_interface,
2195
signature="s",
1408
2196
access="readwrite")
1409
2197
def Checker_dbus_property(self, value=None):
1410
2198
if value is None: # get
1411
2199
return dbus.String(self.checker_command)
1412
self.checker_command = unicode(value)
1413
2200
self.checker_command = str(value)
2201
1414
2202
# CheckerRunning - property
1415
@dbus_service_property(_interface, signature="b",
2203
@dbus_service_property(_interface,
2204
signature="b",
1416
2205
access="readwrite")
1417
2206
def CheckerRunning_dbus_property(self, value=None):
1418
2207
if value is None: # get
1421
2210
self.start_checker()
1422
2211
else:
1423
2212
self.stop_checker()
1424
2213
1425
2214
# ObjectPath - property
2215
@dbus_annotations(
2216
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2217
"org.freedesktop.DBus.Deprecated": "true"})
1426
2218
@dbus_service_property(_interface, signature="o", access="read")
1427
2219
def ObjectPath_dbus_property(self):
1428
return self.dbus_object_path # is already a dbus.ObjectPath
1429
2220
return self.dbus_object_path # is already a dbus.ObjectPath
2221
1430
2222
# Secret = property
1431
@dbus_service_property(_interface, signature="ay",
1432
access="write", byte_arrays=True)
2223
@dbus_annotations(
2224
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2225
"invalidates"})
2226
@dbus_service_property(_interface,
2227
signature="ay",
2228
access="write",
2229
byte_arrays=True)
1433
2230
def Secret_dbus_property(self, value):
1434
self.secret = str(value)
1435
2231
self.secret = bytes(value)
2232
1436
2233
del _interface
1437
2234
1438
2235
1439
class ProxyClient(object):
1440
def __init__(self, child_pipe, fpr, address):
2236
class ProxyClient:
2237
def __init__(self, child_pipe, key_id, fpr, address):
1441
2238
self._pipe = child_pipe
1442
self._pipe.send(('init', fpr, address))
2239
self._pipe.send(('init', key_id, fpr, address))
1443
2240
if not self._pipe.recv():
1444
raise KeyError()
1445
2241
raise KeyError(key_id or fpr)
2242
1446
2243
def __getattribute__(self, name):
1447
2244
if name == '_pipe':
1448
2245
return super(ProxyClient, self).__getattribute__(name)
1451
2248
if data[0] == 'data':
1452
2249
return data[1]
1453
2250
if data[0] == 'function':
2251
1454
2252
def func(*args, **kwargs):
1455
2253
self._pipe.send(('funcall', name, args, kwargs))
1456
2254
return self._pipe.recv()[1]
2255
1457
2256
return func
1458
2257
1459
2258
def __setattr__(self, name, value):
1460
2259
if name == '_pipe':
1461
2260
return super(ProxyClient, self).__setattr__(name, value)
1462
2261
self._pipe.send(('setattr', name, value))
1463
2262
1464
2263
1465
class ClientDBusTransitional(ClientDBus):
1466
__metaclass__ = AlternateDBusNamesMetaclass
1467
1468
1469
2264
class ClientHandler(socketserver.BaseRequestHandler, object):
1470
2265
"""A class to handle client connections.
1471
2266
1472
2267
Instantiated once for each connection to handle it.
1473
2268
Note: This will run in its own forked process."""
1474
2269
1475
2270
def handle(self):
1476
2271
with contextlib.closing(self.server.child_pipe) as child_pipe:
1477
2272
logger.info("TCP connection from: %s",
1478
unicode(self.client_address))
2273
str(self.client_address))
1479
2274
logger.debug("Pipe FD: %d",
1480
2275
self.server.child_pipe.fileno())
1481
1482
session = (gnutls.connection
1483
.ClientSession(self.request,
1484
gnutls.connection
1485
.X509Credentials()))
1486
1487
# Note: gnutls.connection.X509Credentials is really a
1488
# generic GnuTLS certificate credentials object so long as
1489
# no X.509 keys are added to it. Therefore, we can use it
1490
# here despite using OpenPGP certificates.
1491
1492
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1493
# "+AES-256-CBC", "+SHA1",
1494
# "+COMP-NULL", "+CTYPE-OPENPGP",
1495
# "+DHE-DSS"))
2276
2277
session = gnutls.ClientSession(self.request)
2278
2279
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2280
# "+AES-256-CBC", "+SHA1",
2281
# "+COMP-NULL", "+CTYPE-OPENPGP",
2282
# "+DHE-DSS"))
1496
2283
# Use a fallback default, since this MUST be set.
1497
2284
priority = self.server.gnutls_priority
1498
2285
if priority is None:
1499
2286
priority = "NORMAL"
1500
(gnutls.library.functions
1501
.gnutls_priority_set_direct(session._c_object,
1502
priority, None))
1503
2287
gnutls.priority_set_direct(session._c_object,
2288
priority.encode("utf-8"),
2289
None)
2290
1504
2291
# Start communication using the Mandos protocol
1505
2292
# Get protocol number
1506
2293
line = self.request.makefile().readline()
1507
2294
logger.debug("Protocol version: %r", line)
1508
2295
try:
1509
2296
if int(line.strip().split()[0]) > 1:
1510
raise RuntimeError
2297
raise RuntimeError(line)
1511
2298
except (ValueError, IndexError, RuntimeError) as error:
1512
2299
logger.error("Unknown protocol version: %s", error)
1513
2300
return
1514
2301
1515
2302
# Start GnuTLS connection
1516
2303
try:
1517
2304
session.handshake()
1518
except gnutls.errors.GNUTLSError as error:
2305
except gnutls.Error as error:
1519
2306
logger.warning("Handshake failed: %s", error)
1520
2307
# Do not run session.bye() here: the session is not
1521
2308
# established. Just abandon the request.
1522
2309
return
1523
2310
logger.debug("Handshake succeeded")
1524
2311
1525
2312
approval_required = False
1526
2313
try:
1527
try:
1528
fpr = self.fingerprint(self.peer_certificate
1529
(session))
1530
except (TypeError,
1531
gnutls.errors.GNUTLSError) as error:
1532
logger.warning("Bad certificate: %s", error)
1533
return
1534
logger.debug("Fingerprint: %s", fpr)
1535
1536
try:
1537
client = ProxyClient(child_pipe, fpr,
2314
if gnutls.has_rawpk:
2315
fpr = b""
2316
try:
2317
key_id = self.key_id(
2318
self.peer_certificate(session))
2319
except (TypeError, gnutls.Error) as error:
2320
logger.warning("Bad certificate: %s", error)
2321
return
2322
logger.debug("Key ID: %s", key_id)
2323
2324
else:
2325
key_id = b""
2326
try:
2327
fpr = self.fingerprint(
2328
self.peer_certificate(session))
2329
except (TypeError, gnutls.Error) as error:
2330
logger.warning("Bad certificate: %s", error)
2331
return
2332
logger.debug("Fingerprint: %s", fpr)
2333
2334
try:
2335
client = ProxyClient(child_pipe, key_id, fpr,
1538
2336
self.client_address)
1539
2337
except KeyError:
1540
2338
return
1541
1542
if self.server.use_dbus:
1543
# Emit D-Bus signal
1544
client.NewRequest(str(self.client_address))
1545
2339
1546
2340
if client.approval_delay:
1547
2341
delay = client.approval_delay
1548
2342
client.approvals_pending += 1
1549
2343
approval_required = True
1550
2344
1551
2345
while True:
1552
2346
if not client.enabled:
1553
2347
logger.info("Client %s is disabled",
1554
client.name)
2348
client.name)
1555
2349
if self.server.use_dbus:
1556
2350
# Emit D-Bus signal
1557
2351
client.Rejected("Disabled")
1558
2352
return
1559
2353
1560
2354
if client.approved or not client.approval_delay:
1561
#We are approved or approval is disabled
2355
# We are approved or approval is disabled
1562
2356
break
1563
2357
elif client.approved is None:
1564
2358
logger.info("Client %s needs approval",
1566
2360
if self.server.use_dbus:
1567
2361
# Emit D-Bus signal
1568
2362
client.NeedApproval(
1569
client.approval_delay_milliseconds(),
1570
client.approved_by_default)
2363
client.approval_delay.total_seconds()
2364
* 1000, client.approved_by_default)
1571
2365
else:
1572
2366
logger.warning("Client %s was not approved",
1573
2367
client.name)
1575
2369
# Emit D-Bus signal
1576
2370
client.Rejected("Denied")
1577
2371
return
1578
1579
#wait until timeout or approved
2372
2373
# wait until timeout or approved
1580
2374
time = datetime.datetime.now()
1581
2375
client.changedstate.acquire()
1582
(client.changedstate.wait
1583
(float(client.timedelta_to_milliseconds(delay)
1584
/ 1000)))
2376
client.changedstate.wait(delay.total_seconds())
1585
2377
client.changedstate.release()
1586
2378
time2 = datetime.datetime.now()
1587
2379
if (time2 - time) >= delay:
1597
2389
break
1598
2390
else:
1599
2391
delay -= time2 - time
1600
1601
sent_size = 0
1602
while sent_size < len(client.secret):
1603
try:
1604
sent = session.send(client.secret[sent_size:])
1605
except gnutls.errors.GNUTLSError as error:
1606
logger.warning("gnutls send failed")
1607
return
1608
logger.debug("Sent: %d, remaining: %d",
1609
sent, len(client.secret)
1610
- (sent_size + sent))
1611
sent_size += sent
1612
2392
2393
try:
2394
session.send(client.secret)
2395
except gnutls.Error as error:
2396
logger.warning("gnutls send failed",
2397
exc_info=error)
2398
return
2399
1613
2400
logger.info("Sending secret to %s", client.name)
1614
2401
# bump the timeout using extended_timeout
1615
client.checked_ok(client.extended_timeout)
2402
client.bump_timeout(client.extended_timeout)
1616
2403
if self.server.use_dbus:
1617
2404
# Emit D-Bus signal
1618
2405
client.GotSecret()
1619
2406
1620
2407
finally:
1621
2408
if approval_required:
1622
2409
client.approvals_pending -= 1
1623
2410
try:
1624
2411
session.bye()
1625
except gnutls.errors.GNUTLSError as error:
1626
logger.warning("GnuTLS bye failed")
1627
2412
except gnutls.Error as error:
2413
logger.warning("GnuTLS bye failed",
2414
exc_info=error)
2415
1628
2416
@staticmethod
1629
2417
def peer_certificate(session):
1630
"Return the peer's OpenPGP certificate as a bytestring"
1631
# If not an OpenPGP certificate...
1632
if (gnutls.library.functions
1633
.gnutls_certificate_type_get(session._c_object)
1634
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1635
# ...do the normal thing
1636
return session.peer_certificate
2418
"Return the peer's certificate as a bytestring"
2419
try:
2420
cert_type = gnutls.certificate_type_get2(session._c_object,
2421
gnutls.CTYPE_PEERS)
2422
except AttributeError:
2423
cert_type = gnutls.certificate_type_get(session._c_object)
2424
if gnutls.has_rawpk:
2425
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2426
else:
2427
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2428
# If not a valid certificate type...
2429
if cert_type not in valid_cert_types:
2430
logger.info("Cert type %r not in %r", cert_type,
2431
valid_cert_types)
2432
# ...return invalid data
2433
return b""
1637
2434
list_size = ctypes.c_uint(1)
1638
cert_list = (gnutls.library.functions
1639
.gnutls_certificate_get_peers
2435
cert_list = (gnutls.certificate_get_peers
1640
2436
(session._c_object, ctypes.byref(list_size)))
1641
2437
if not bool(cert_list) and list_size.value != 0:
1642
raise gnutls.errors.GNUTLSError("error getting peer"
1643
" certificate")
2438
raise gnutls.Error("error getting peer certificate")
1644
2439
if list_size.value == 0:
1645
2440
return None
1646
2441
cert = cert_list[0]
1647
2442
return ctypes.string_at(cert.data, cert.size)
1648
2443
2444
@staticmethod
2445
def key_id(certificate):
2446
"Convert a certificate bytestring to a hexdigit key ID"
2447
# New GnuTLS "datum" with the public key
2448
datum = gnutls.datum_t(
2449
ctypes.cast(ctypes.c_char_p(certificate),
2450
ctypes.POINTER(ctypes.c_ubyte)),
2451
ctypes.c_uint(len(certificate)))
2452
# XXX all these need to be created in the gnutls "module"
2453
# New empty GnuTLS certificate
2454
pubkey = gnutls.pubkey_t()
2455
gnutls.pubkey_init(ctypes.byref(pubkey))
2456
# Import the raw public key into the certificate
2457
gnutls.pubkey_import(pubkey,
2458
ctypes.byref(datum),
2459
gnutls.X509_FMT_DER)
2460
# New buffer for the key ID
2461
buf = ctypes.create_string_buffer(32)
2462
buf_len = ctypes.c_size_t(len(buf))
2463
# Get the key ID from the raw public key into the buffer
2464
gnutls.pubkey_get_key_id(pubkey,
2465
gnutls.KEYID_USE_SHA256,
2466
ctypes.cast(ctypes.byref(buf),
2467
ctypes.POINTER(ctypes.c_ubyte)),
2468
ctypes.byref(buf_len))
2469
# Deinit the certificate
2470
gnutls.pubkey_deinit(pubkey)
2471
2472
# Convert the buffer to a Python bytestring
2473
key_id = ctypes.string_at(buf, buf_len.value)
2474
# Convert the bytestring to hexadecimal notation
2475
hex_key_id = binascii.hexlify(key_id).upper()
2476
return hex_key_id
2477
1649
2478
@staticmethod
1650
2479
def fingerprint(openpgp):
1651
2480
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1652
2481
# New GnuTLS "datum" with the OpenPGP public key
1653
datum = (gnutls.library.types
1654
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1655
ctypes.POINTER
1656
(ctypes.c_ubyte)),
1657
ctypes.c_uint(len(openpgp))))
2482
datum = gnutls.datum_t(
2483
ctypes.cast(ctypes.c_char_p(openpgp),
2484
ctypes.POINTER(ctypes.c_ubyte)),
2485
ctypes.c_uint(len(openpgp)))
1658
2486
# New empty GnuTLS certificate
1659
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1660
(gnutls.library.functions
1661
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2487
crt = gnutls.openpgp_crt_t()
2488
gnutls.openpgp_crt_init(ctypes.byref(crt))
1662
2489
# Import the OpenPGP public key into the certificate
1663
(gnutls.library.functions
1664
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1665
gnutls.library.constants
1666
.GNUTLS_OPENPGP_FMT_RAW))
2490
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2491
gnutls.OPENPGP_FMT_RAW)
1667
2492
# Verify the self signature in the key
1668
2493
crtverify = ctypes.c_uint()
1669
(gnutls.library.functions
1670
.gnutls_openpgp_crt_verify_self(crt, 0,
1671
ctypes.byref(crtverify)))
2494
gnutls.openpgp_crt_verify_self(crt, 0,
2495
ctypes.byref(crtverify))
1672
2496
if crtverify.value != 0:
1673
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1674
raise (gnutls.errors.CertificateSecurityError
1675
("Verify failed"))
2497
gnutls.openpgp_crt_deinit(crt)
2498
raise gnutls.CertificateSecurityError(code
2499
=crtverify.value)
1676
2500
# New buffer for the fingerprint
1677
2501
buf = ctypes.create_string_buffer(20)
1678
2502
buf_len = ctypes.c_size_t()
1679
2503
# Get the fingerprint from the certificate into the buffer
1680
(gnutls.library.functions
1681
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1682
ctypes.byref(buf_len)))
2504
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2505
ctypes.byref(buf_len))
1683
2506
# Deinit the certificate
1684
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2507
gnutls.openpgp_crt_deinit(crt)
1685
2508
# Convert the buffer to a Python bytestring
1686
2509
fpr = ctypes.string_at(buf, buf_len.value)
1687
2510
# Convert the bytestring to hexadecimal notation
1689
2512
return hex_fpr
1690
2513
1691
2514
1692
class MultiprocessingMixIn(object):
2515
class MultiprocessingMixIn:
1693
2516
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2517
1694
2518
def sub_process_main(self, request, address):
1695
2519
try:
1696
2520
self.finish_request(request, address)
1697
2521
except Exception:
1698
2522
self.handle_error(request, address)
1699
2523
self.close_request(request)
1700
2524
1701
2525
def process_request(self, request, address):
1702
2526
"""Start a new process to process the request."""
1703
proc = multiprocessing.Process(target = self.sub_process_main,
1704
args = (request,
1705
address))
2527
proc = multiprocessing.Process(target=self.sub_process_main,
2528
args=(request, address))
1706
2529
proc.start()
1707
2530
return proc
1708
2531
1709
2532
1710
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2533
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1711
2534
""" adds a pipe to the MixIn """
2535
1712
2536
def process_request(self, request, client_address):
1713
2537
"""Overrides and wraps the original process_request().
1714
2538
1715
2539
This function creates a new pipe in self.pipe
1716
2540
"""
1717
2541
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1718
2542
1719
2543
proc = MultiprocessingMixIn.process_request(self, request,
1720
2544
client_address)
1721
2545
self.child_pipe.close()
1722
2546
self.add_pipe(parent_pipe, proc)
1723
2547
1724
2548
def add_pipe(self, parent_pipe, proc):
1725
2549
"""Dummy function; override as necessary"""
1726
raise NotImplementedError
2550
raise NotImplementedError()
1727
2551
1728
2552
1729
2553
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1730
socketserver.TCPServer, object):
2554
socketserver.TCPServer):
1731
2555
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1732
2556
1733
2557
Attributes:
1734
2558
enabled: Boolean; whether this server is activated yet
1735
2559
interface: None or a network interface name (string)
1736
2560
use_ipv6: Boolean; to use IPv6 or not
1737
2561
"""
2562
1738
2563
def __init__(self, server_address, RequestHandlerClass,
1739
interface=None, use_ipv6=True):
2564
interface=None,
2565
use_ipv6=True,
2566
socketfd=None):
2567
"""If socketfd is set, use that file descriptor instead of
2568
creating a new one with socket.socket().
2569
"""
1740
2570
self.interface = interface
1741
2571
if use_ipv6:
1742
2572
self.address_family = socket.AF_INET6
2573
if socketfd is not None:
2574
# Save the file descriptor
2575
self.socketfd = socketfd
2576
# Save the original socket.socket() function
2577
self.socket_socket = socket.socket
2578
2579
# To implement --socket, we monkey patch socket.socket.
2580
#
2581
# (When socketserver.TCPServer is a new-style class, we
2582
# could make self.socket into a property instead of monkey
2583
# patching socket.socket.)
2584
#
2585
# Create a one-time-only replacement for socket.socket()
2586
@functools.wraps(socket.socket)
2587
def socket_wrapper(*args, **kwargs):
2588
# Restore original function so subsequent calls are
2589
# not affected.
2590
socket.socket = self.socket_socket
2591
del self.socket_socket
2592
# This time only, return a new socket object from the
2593
# saved file descriptor.
2594
return socket.fromfd(self.socketfd, *args, **kwargs)
2595
# Replace socket.socket() function with wrapper
2596
socket.socket = socket_wrapper
2597
# The socketserver.TCPServer.__init__ will call
2598
# socket.socket(), which might be our replacement,
2599
# socket_wrapper(), if socketfd was set.
1743
2600
socketserver.TCPServer.__init__(self, server_address,
1744
2601
RequestHandlerClass)
2602
1745
2603
def server_bind(self):
1746
2604
"""This overrides the normal server_bind() function
1747
2605
to bind to an interface if one was specified, and also NOT to
1748
2606
bind to an address or port if they were not specified."""
2607
global SO_BINDTODEVICE
1749
2608
if self.interface is not None:
1750
2609
if SO_BINDTODEVICE is None:
1751
logger.error("SO_BINDTODEVICE does not exist;"
1752
" cannot bind to interface %s",
1753
self.interface)
1754
else:
1755
try:
1756
self.socket.setsockopt(socket.SOL_SOCKET,
1757
SO_BINDTODEVICE,
1758
str(self.interface
1759
+ '\0'))
1760
except socket.error as error:
1761
if error[0] == errno.EPERM:
1762
logger.error("No permission to"
1763
" bind to interface %s",
1764
self.interface)
1765
elif error[0] == errno.ENOPROTOOPT:
1766
logger.error("SO_BINDTODEVICE not available;"
1767
" cannot bind to interface %s",
1768
self.interface)
1769
else:
1770
raise
2610
# Fall back to a hard-coded value which seems to be
2611
# common enough.
2612
logger.warning("SO_BINDTODEVICE not found, trying 25")
2613
SO_BINDTODEVICE = 25
2614
try:
2615
self.socket.setsockopt(
2616
socket.SOL_SOCKET, SO_BINDTODEVICE,
2617
(self.interface + "\0").encode("utf-8"))
2618
except socket.error as error:
2619
if error.errno == errno.EPERM:
2620
logger.error("No permission to bind to"
2621
" interface %s", self.interface)
2622
elif error.errno == errno.ENOPROTOOPT:
2623
logger.error("SO_BINDTODEVICE not available;"
2624
" cannot bind to interface %s",
2625
self.interface)
2626
elif error.errno == errno.ENODEV:
2627
logger.error("Interface %s does not exist,"
2628
" cannot bind", self.interface)
2629
else:
2630
raise
1771
2631
# Only bind(2) the socket if we really need to.
1772
2632
if self.server_address[0] or self.server_address[1]:
2633
if self.server_address[1]:
2634
self.allow_reuse_address = True
1773
2635
if not self.server_address[0]:
1774
2636
if self.address_family == socket.AF_INET6:
1775
any_address = "::" # in6addr_any
2637
any_address = "::" # in6addr_any
1776
2638
else:
1777
any_address = socket.INADDR_ANY
2639
any_address = "0.0.0.0" # INADDR_ANY
1778
2640
self.server_address = (any_address,
1779
2641
self.server_address[1])
1780
2642
elif not self.server_address[1]:
1781
self.server_address = (self.server_address[0],
1782
0)
2643
self.server_address = (self.server_address[0], 0)
1783
2644
# if self.interface:
1784
2645
# self.server_address = (self.server_address[0],
1785
2646
# 0, # port
1791
2652
1792
2653
class MandosServer(IPv6_TCPServer):
1793
2654
"""Mandos server.
1794
2655
1795
2656
Attributes:
1796
2657
clients: set of Client objects
1797
2658
gnutls_priority GnuTLS priority string
1798
2659
use_dbus: Boolean; to emit D-Bus signals or not
1799
1800
Assumes a gobject.MainLoop event loop.
2660
2661
Assumes a GLib.MainLoop event loop.
1801
2662
"""
2663
1802
2664
def __init__(self, server_address, RequestHandlerClass,
1803
interface=None, use_ipv6=True, clients=None,
1804
gnutls_priority=None, use_dbus=True):
2665
interface=None,
2666
use_ipv6=True,
2667
clients=None,
2668
gnutls_priority=None,
2669
use_dbus=True,
2670
socketfd=None):
1805
2671
self.enabled = False
1806
2672
self.clients = clients
1807
2673
if self.clients is None:
1810
2676
self.gnutls_priority = gnutls_priority
1811
2677
IPv6_TCPServer.__init__(self, server_address,
1812
2678
RequestHandlerClass,
1813
interface = interface,
1814
use_ipv6 = use_ipv6)
2679
interface=interface,
2680
use_ipv6=use_ipv6,
2681
socketfd=socketfd)
2682
1815
2683
def server_activate(self):
1816
2684
if self.enabled:
1817
2685
return socketserver.TCPServer.server_activate(self)
1818
2686
1819
2687
def enable(self):
1820
2688
self.enabled = True
1821
2689
1822
2690
def add_pipe(self, parent_pipe, proc):
1823
2691
# Call "handle_ipc" for both data and EOF events
1824
gobject.io_add_watch(parent_pipe.fileno(),
1825
gobject.IO_IN | gobject.IO_HUP,
1826
functools.partial(self.handle_ipc,
1827
parent_pipe =
1828
parent_pipe,
1829
proc = proc))
1830
1831
def handle_ipc(self, source, condition, parent_pipe=None,
1832
proc = None, client_object=None):
1833
condition_names = {
1834
gobject.IO_IN: "IN", # There is data to read.
1835
gobject.IO_OUT: "OUT", # Data can be written (without
1836
# blocking).
1837
gobject.IO_PRI: "PRI", # There is urgent data to read.
1838
gobject.IO_ERR: "ERR", # Error condition.
1839
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1840
# broken, usually for pipes and
1841
# sockets).
1842
}
1843
conditions_string = ' | '.join(name
1844
for cond, name in
1845
condition_names.iteritems()
1846
if cond & condition)
2692
GLib.io_add_watch(
2693
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2694
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2695
functools.partial(self.handle_ipc,
2696
parent_pipe=parent_pipe,
2697
proc=proc))
2698
2699
def handle_ipc(self, source, condition,
2700
parent_pipe=None,
2701
proc=None,
2702
client_object=None):
1847
2703
# error, or the other end of multiprocessing.Pipe has closed
1848
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2704
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1849
2705
# Wait for other process to exit
1850
2706
proc.join()
1851
2707
return False
1852
2708
1853
2709
# Read a request from the child
1854
2710
request = parent_pipe.recv()
1855
2711
command = request[0]
1856
2712
1857
2713
if command == 'init':
1858
fpr = request[1]
1859
address = request[2]
1860
1861
for c in self.clients.itervalues():
1862
if c.fingerprint == fpr:
2714
key_id = request[1].decode("ascii")
2715
fpr = request[2].decode("ascii")
2716
address = request[3]
2717
2718
for c in self.clients.values():
2719
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2720
continue
2721
if key_id and c.key_id == key_id:
2722
client = c
2723
break
2724
if fpr and c.fingerprint == fpr:
1863
2725
client = c
1864
2726
break
1865
2727
else:
1866
logger.info("Client not found for fingerprint: %s, ad"
1867
"dress: %s", fpr, address)
2728
logger.info("Client not found for key ID: %s, address"
2729
": %s", key_id or fpr, address)
1868
2730
if self.use_dbus:
1869
2731
# Emit D-Bus signal
1870
mandos_dbus_service.ClientNotFound(fpr,
2732
mandos_dbus_service.ClientNotFound(key_id or fpr,
1871
2733
address[0])
1872
2734
parent_pipe.send(False)
1873
2735
return False
1874
1875
gobject.io_add_watch(parent_pipe.fileno(),
1876
gobject.IO_IN | gobject.IO_HUP,
1877
functools.partial(self.handle_ipc,
1878
parent_pipe =
1879
parent_pipe,
1880
proc = proc,
1881
client_object =
1882
client))
2736
2737
GLib.io_add_watch(
2738
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2739
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2740
functools.partial(self.handle_ipc,
2741
parent_pipe=parent_pipe,
2742
proc=proc,
2743
client_object=client))
1883
2744
parent_pipe.send(True)
1884
2745
# remove the old hook in favor of the new above hook on
1885
2746
# same fileno
1888
2749
funcname = request[1]
1889
2750
args = request[2]
1890
2751
kwargs = request[3]
1891
2752
1892
2753
parent_pipe.send(('data', getattr(client_object,
1893
2754
funcname)(*args,
1894
**kwargs)))
1895
2755
**kwargs)))
2756
1896
2757
if command == 'getattr':
1897
2758
attrname = request[1]
1898
if callable(client_object.__getattribute__(attrname)):
1899
parent_pipe.send(('function',))
2759
if isinstance(client_object.__getattribute__(attrname),
2760
collections.abc.Callable):
2761
parent_pipe.send(('function', ))
1900
2762
else:
1901
parent_pipe.send(('data', client_object
1902
.__getattribute__(attrname)))
1903
2763
parent_pipe.send((
2764
'data', client_object.__getattribute__(attrname)))
2765
1904
2766
if command == 'setattr':
1905
2767
attrname = request[1]
1906
2768
value = request[2]
1907
2769
setattr(client_object, attrname, value)
1908
2770
1909
2771
return True
1910
2772
1911
2773
2774
def rfc3339_duration_to_delta(duration):
2775
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2776
2777
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2778
True
2779
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2780
True
2781
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2782
True
2783
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2784
True
2785
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2786
True
2787
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2788
True
2789
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2790
True
2791
"""
2792
2793
# Parsing an RFC 3339 duration with regular expressions is not
2794
# possible - there would have to be multiple places for the same
2795
# values, like seconds. The current code, while more esoteric, is
2796
# cleaner without depending on a parsing library. If Python had a
2797
# built-in library for parsing we would use it, but we'd like to
2798
# avoid excessive use of external libraries.
2799
2800
# New type for defining tokens, syntax, and semantics all-in-one
2801
Token = collections.namedtuple("Token", (
2802
"regexp", # To match token; if "value" is not None, must have
2803
# a "group" containing digits
2804
"value", # datetime.timedelta or None
2805
"followers")) # Tokens valid after this token
2806
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2807
# the "duration" ABNF definition in RFC 3339, Appendix A.
2808
token_end = Token(re.compile(r"$"), None, frozenset())
2809
token_second = Token(re.compile(r"(\d+)S"),
2810
datetime.timedelta(seconds=1),
2811
frozenset((token_end, )))
2812
token_minute = Token(re.compile(r"(\d+)M"),
2813
datetime.timedelta(minutes=1),
2814
frozenset((token_second, token_end)))
2815
token_hour = Token(re.compile(r"(\d+)H"),
2816
datetime.timedelta(hours=1),
2817
frozenset((token_minute, token_end)))
2818
token_time = Token(re.compile(r"T"),
2819
None,
2820
frozenset((token_hour, token_minute,
2821
token_second)))
2822
token_day = Token(re.compile(r"(\d+)D"),
2823
datetime.timedelta(days=1),
2824
frozenset((token_time, token_end)))
2825
token_month = Token(re.compile(r"(\d+)M"),
2826
datetime.timedelta(weeks=4),
2827
frozenset((token_day, token_end)))
2828
token_year = Token(re.compile(r"(\d+)Y"),
2829
datetime.timedelta(weeks=52),
2830
frozenset((token_month, token_end)))
2831
token_week = Token(re.compile(r"(\d+)W"),
2832
datetime.timedelta(weeks=1),
2833
frozenset((token_end, )))
2834
token_duration = Token(re.compile(r"P"), None,
2835
frozenset((token_year, token_month,
2836
token_day, token_time,
2837
token_week)))
2838
# Define starting values:
2839
# Value so far
2840
value = datetime.timedelta()
2841
found_token = None
2842
# Following valid tokens
2843
followers = frozenset((token_duration, ))
2844
# String left to parse
2845
s = duration
2846
# Loop until end token is found
2847
while found_token is not token_end:
2848
# Search for any currently valid tokens
2849
for token in followers:
2850
match = token.regexp.match(s)
2851
if match is not None:
2852
# Token found
2853
if token.value is not None:
2854
# Value found, parse digits
2855
factor = int(match.group(1), 10)
2856
# Add to value so far
2857
value += factor * token.value
2858
# Strip token from string
2859
s = token.regexp.sub("", s, 1)
2860
# Go to found token
2861
found_token = token
2862
# Set valid next tokens
2863
followers = found_token.followers
2864
break
2865
else:
2866
# No currently valid tokens were found
2867
raise ValueError("Invalid RFC 3339 duration: {!r}"
2868
.format(duration))
2869
# End token found
2870
return value
2871
2872
1912
2873
def string_to_delta(interval):
1913
2874
"""Parse a string and return a datetime.timedelta
1914
1915
>>> string_to_delta('7d')
1916
datetime.timedelta(7)
1917
>>> string_to_delta('60s')
1918
datetime.timedelta(0, 60)
1919
>>> string_to_delta('60m')
1920
datetime.timedelta(0, 3600)
1921
>>> string_to_delta('24h')
1922
datetime.timedelta(1)
1923
>>> string_to_delta('1w')
1924
datetime.timedelta(7)
1925
>>> string_to_delta('5m 30s')
1926
datetime.timedelta(0, 330)
2875
2876
>>> string_to_delta('7d') == datetime.timedelta(7)
2877
True
2878
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2879
True
2880
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2881
True
2882
>>> string_to_delta('24h') == datetime.timedelta(1)
2883
True
2884
>>> string_to_delta('1w') == datetime.timedelta(7)
2885
True
2886
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2887
True
1927
2888
"""
2889
2890
try:
2891
return rfc3339_duration_to_delta(interval)
2892
except ValueError:
2893
pass
2894
1928
2895
timevalue = datetime.timedelta(0)
1929
2896
for s in interval.split():
1930
2897
try:
1931
suffix = unicode(s[-1])
2898
suffix = s[-1]
1932
2899
value = int(s[:-1])
1933
2900
if suffix == "d":
1934
2901
delta = datetime.timedelta(value)
1941
2908
elif suffix == "w":
1942
2909
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1943
2910
else:
1944
raise ValueError("Unknown suffix %r" % suffix)
1945
except (ValueError, IndexError) as e:
2911
raise ValueError("Unknown suffix {!r}".format(suffix))
2912
except IndexError as e:
1946
2913
raise ValueError(*(e.args))
1947
2914
timevalue += delta
1948
2915
return timevalue
1949
2916
1950
2917
1951
def daemon(nochdir = False, noclose = False):
2918
def daemon(nochdir=False, noclose=False):
1952
2919
"""See daemon(3). Standard BSD Unix function.
1953
2920
1954
2921
This should really exist as os.daemon, but it doesn't (yet)."""
1955
2922
if os.fork():
1956
2923
sys.exit()
1961
2928
sys.exit()
1962
2929
if not noclose:
1963
2930
# Close all standard open file descriptors
1964
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2931
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1965
2932
if not stat.S_ISCHR(os.fstat(null).st_mode):
1966
2933
raise OSError(errno.ENODEV,
1967
"%s not a character device"
1968
% os.path.devnull)
2934
"{} not a character device"
2935
.format(os.devnull))
1969
2936
os.dup2(null, sys.stdin.fileno())
1970
2937
os.dup2(null, sys.stdout.fileno())
1971
2938
os.dup2(null, sys.stderr.fileno())
1974
2941
1975
2942
1976
2943
def main():
1977
2944
1978
2945
##################################################################
1979
2946
# Parsing of options, both command line and config file
1980
2947
1981
2948
parser = argparse.ArgumentParser()
1982
2949
parser.add_argument("-v", "--version", action="version",
1983
version = "%%(prog)s %s" % version,
2950
version="%(prog)s {}".format(version),
1984
2951
help="show version number and exit")
1985
2952
parser.add_argument("-i", "--interface", metavar="IF",
1986
2953
help="Bind to interface IF")
1992
2959
help="Run self-test")
1993
2960
parser.add_argument("--debug", action="store_true",
1994
2961
help="Debug mode; run in foreground and log"
1995
" to terminal")
2962
" to terminal", default=None)
1996
2963
parser.add_argument("--debuglevel", metavar="LEVEL",
1997
2964
help="Debug level for stdout output")
1998
2965
parser.add_argument("--priority", help="GnuTLS"
2005
2972
" files")
2006
2973
parser.add_argument("--no-dbus", action="store_false",
2007
2974
dest="use_dbus", help="Do not provide D-Bus"
2008
" system bus interface")
2975
" system bus interface", default=None)
2009
2976
parser.add_argument("--no-ipv6", action="store_false",
2010
dest="use_ipv6", help="Do not use IPv6")
2977
dest="use_ipv6", help="Do not use IPv6",
2978
default=None)
2011
2979
parser.add_argument("--no-restore", action="store_false",
2012
2980
dest="restore", help="Do not restore stored"
2013
" state")
2981
" state", default=None)
2982
parser.add_argument("--socket", type=int,
2983
help="Specify a file descriptor to a network"
2984
" socket to use instead of creating one")
2014
2985
parser.add_argument("--statedir", metavar="DIR",
2015
2986
help="Directory to save/restore state in")
2016
2987
parser.add_argument("--foreground", action="store_true",
2988
help="Run in foreground", default=None)
2989
parser.add_argument("--no-zeroconf", action="store_false",
2990
dest="zeroconf", help="Do not use Zeroconf",
2991
default=None)
2992
2017
2993
options = parser.parse_args()
2018
2019
if options.check:
2020
import doctest
2021
doctest.testmod()
2022
sys.exit()
2023
2994
2024
2995
# Default values for config file for server-global settings
2025
server_defaults = { "interface": "",
2026
"address": "",
2027
"port": "",
2028
"debug": "False",
2029
"priority":
2030
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2031
"servicename": "Mandos",
2032
"use_dbus": "True",
2033
"use_ipv6": "True",
2034
"debuglevel": "",
2035
"restore": "True",
2036
"statedir": "/var/lib/mandos"
2037
}
2038
2996
if gnutls.has_rawpk:
2997
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2998
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2999
else:
3000
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3001
":+SIGN-DSA-SHA256")
3002
server_defaults = {"interface": "",
3003
"address": "",
3004
"port": "",
3005
"debug": "False",
3006
"priority": priority,
3007
"servicename": "Mandos",
3008
"use_dbus": "True",
3009
"use_ipv6": "True",
3010
"debuglevel": "",
3011
"restore": "True",
3012
"socket": "",
3013
"statedir": "/var/lib/mandos",
3014
"foreground": "False",
3015
"zeroconf": "True",
3016
}
3017
del priority
3018
2039
3019
# Parse config file for server-global settings
2040
server_config = configparser.SafeConfigParser(server_defaults)
3020
server_config = configparser.ConfigParser(server_defaults)
2041
3021
del server_defaults
2042
server_config.read(os.path.join(options.configdir,
2043
"mandos.conf"))
2044
# Convert the SafeConfigParser object to a dict
3022
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3023
# Convert the ConfigParser object to a dict
2045
3024
server_settings = server_config.defaults()
2046
3025
# Use the appropriate methods on the non-string config options
2047
for option in ("debug", "use_dbus", "use_ipv6"):
3026
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3027
"foreground", "zeroconf"):
2048
3028
server_settings[option] = server_config.getboolean("DEFAULT",
2049
3029
option)
2050
3030
if server_settings["port"]:
2051
3031
server_settings["port"] = server_config.getint("DEFAULT",
2052
3032
"port")
3033
if server_settings["socket"]:
3034
server_settings["socket"] = server_config.getint("DEFAULT",
3035
"socket")
3036
# Later, stdin will, and stdout and stderr might, be dup'ed
3037
# over with an opened os.devnull. But we don't want this to
3038
# happen with a supplied network socket.
3039
if 0 <= server_settings["socket"] <= 2:
3040
server_settings["socket"] = os.dup(server_settings
3041
["socket"])
2053
3042
del server_config
2054
3043
2055
3044
# Override the settings from the config file with command line
2056
3045
# options, if set.
2057
3046
for option in ("interface", "address", "port", "debug",
2058
"priority", "servicename", "configdir",
2059
"use_dbus", "use_ipv6", "debuglevel", "restore",
2060
"statedir"):
3047
"priority", "servicename", "configdir", "use_dbus",
3048
"use_ipv6", "debuglevel", "restore", "statedir",
3049
"socket", "foreground", "zeroconf"):
2061
3050
value = getattr(options, option)
2062
3051
if value is not None:
2063
3052
server_settings[option] = value
2064
3053
del options
2065
3054
# Force all strings to be unicode
2066
3055
for option in server_settings.keys():
2067
if type(server_settings[option]) is str:
2068
server_settings[option] = unicode(server_settings[option])
3056
if isinstance(server_settings[option], bytes):
3057
server_settings[option] = (server_settings[option]
3058
.decode("utf-8"))
3059
# Force all boolean options to be boolean
3060
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3061
"foreground", "zeroconf"):
3062
server_settings[option] = bool(server_settings[option])
3063
# Debug implies foreground
3064
if server_settings["debug"]:
3065
server_settings["foreground"] = True
2069
3066
# Now we have our good server settings in "server_settings"
2070
3067
2071
3068
##################################################################
2072
3069
3070
if (not server_settings["zeroconf"]
3071
and not (server_settings["port"]
3072
or server_settings["socket"] != "")):
3073
parser.error("Needs port or socket to work without Zeroconf")
3074
2073
3075
# For convenience
2074
3076
debug = server_settings["debug"]
2075
3077
debuglevel = server_settings["debuglevel"]
2077
3079
use_ipv6 = server_settings["use_ipv6"]
2078
3080
stored_state_path = os.path.join(server_settings["statedir"],
2079
3081
stored_state_file)
2080
3082
foreground = server_settings["foreground"]
3083
zeroconf = server_settings["zeroconf"]
3084
2081
3085
if debug:
2082
3086
initlogger(debug, logging.DEBUG)
2083
3087
else:
2086
3090
else:
2087
3091
level = getattr(logging, debuglevel.upper())
2088
3092
initlogger(debug, level)
2089
3093
2090
3094
if server_settings["servicename"] != "Mandos":
2091
syslogger.setFormatter(logging.Formatter
2092
('Mandos (%s) [%%(process)d]:'
2093
' %%(levelname)s: %%(message)s'
2094
% server_settings["servicename"]))
2095
3095
syslogger.setFormatter(
3096
logging.Formatter('Mandos ({}) [%(process)d]:'
3097
' %(levelname)s: %(message)s'.format(
3098
server_settings["servicename"])))
3099
2096
3100
# Parse config file with clients
2097
client_config = configparser.SafeConfigParser(Client.client_defaults)
3101
client_config = configparser.ConfigParser(Client.client_defaults)
2098
3102
client_config.read(os.path.join(server_settings["configdir"],
2099
3103
"clients.conf"))
2100
3104
2101
3105
global mandos_dbus_service
2102
3106
mandos_dbus_service = None
2103
2104
tcp_server = MandosServer((server_settings["address"],
2105
server_settings["port"]),
2106
ClientHandler,
2107
interface=(server_settings["interface"]
2108
or None),
2109
use_ipv6=use_ipv6,
2110
gnutls_priority=
2111
server_settings["priority"],
2112
use_dbus=use_dbus)
2113
if not debug:
2114
pidfilename = "/var/run/mandos.pid"
2115
try:
2116
pidfile = open(pidfilename, "w")
2117
except IOError:
2118
logger.error("Could not open file %r", pidfilename)
2119
2120
try:
2121
uid = pwd.getpwnam("_mandos").pw_uid
2122
gid = pwd.getpwnam("_mandos").pw_gid
2123
except KeyError:
2124
try:
2125
uid = pwd.getpwnam("mandos").pw_uid
2126
gid = pwd.getpwnam("mandos").pw_gid
3107
3108
socketfd = None
3109
if server_settings["socket"] != "":
3110
socketfd = server_settings["socket"]
3111
tcp_server = MandosServer(
3112
(server_settings["address"], server_settings["port"]),
3113
ClientHandler,
3114
interface=(server_settings["interface"] or None),
3115
use_ipv6=use_ipv6,
3116
gnutls_priority=server_settings["priority"],
3117
use_dbus=use_dbus,
3118
socketfd=socketfd)
3119
if not foreground:
3120
pidfilename = "/run/mandos.pid"
3121
if not os.path.isdir("/run/."):
3122
pidfilename = "/var/run/mandos.pid"
3123
pidfile = None
3124
try:
3125
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3126
except IOError as e:
3127
logger.error("Could not open file %r", pidfilename,
3128
exc_info=e)
3129
3130
for name, group in (("_mandos", "_mandos"),
3131
("mandos", "mandos"),
3132
("nobody", "nogroup")):
3133
try:
3134
uid = pwd.getpwnam(name).pw_uid
3135
gid = pwd.getpwnam(group).pw_gid
3136
break
2127
3137
except KeyError:
2128
try:
2129
uid = pwd.getpwnam("nobody").pw_uid
2130
gid = pwd.getpwnam("nobody").pw_gid
2131
except KeyError:
2132
uid = 65534
2133
gid = 65534
3138
continue
3139
else:
3140
uid = 65534
3141
gid = 65534
2134
3142
try:
2135
3143
os.setgid(gid)
2136
3144
os.setuid(uid)
3145
if debug:
3146
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3147
gid))
2137
3148
except OSError as error:
2138
if error[0] != errno.EPERM:
2139
raise error
2140
3149
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3150
.format(uid, gid, os.strerror(error.errno)))
3151
if error.errno != errno.EPERM:
3152
raise
3153
2141
3154
if debug:
2142
3155
# Enable all possible GnuTLS debugging
2143
3156
2144
3157
# "Use a log level over 10 to enable all debugging options."
2145
3158
# - GnuTLS manual
2146
gnutls.library.functions.gnutls_global_set_log_level(11)
2147
2148
@gnutls.library.types.gnutls_log_func
3159
gnutls.global_set_log_level(11)
3160
3161
@gnutls.log_func
2149
3162
def debug_gnutls(level, string):
2150
3163
logger.debug("GnuTLS: %s", string[:-1])
2151
2152
(gnutls.library.functions
2153
.gnutls_global_set_log_function(debug_gnutls))
2154
3164
3165
gnutls.global_set_log_function(debug_gnutls)
3166
2155
3167
# Redirect stdin so all checkers get /dev/null
2156
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3168
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2157
3169
os.dup2(null, sys.stdin.fileno())
2158
3170
if null > 2:
2159
3171
os.close(null)
2160
3172
2161
3173
# Need to fork before connecting to D-Bus
2162
if not debug:
3174
if not foreground:
2163
3175
# Close all input and output, do double fork, etc.
2164
3176
daemon()
2165
2166
gobject.threads_init()
2167
3177
3178
if gi.version_info < (3, 10, 2):
3179
# multiprocessing will use threads, so before we use GLib we
3180
# need to inform GLib that threads will be used.
3181
GLib.threads_init()
3182
2168
3183
global main_loop
2169
3184
# From the Avahi example code
2170
DBusGMainLoop(set_as_default=True )
2171
main_loop = gobject.MainLoop()
3185
DBusGMainLoop(set_as_default=True)
3186
main_loop = GLib.MainLoop()
2172
3187
bus = dbus.SystemBus()
2173
3188
# End of Avahi example code
2174
3189
if use_dbus:
2175
3190
try:
2176
3191
bus_name = dbus.service.BusName("se.recompile.Mandos",
2177
bus, do_not_queue=True)
2178
old_bus_name = (dbus.service.BusName
2179
("se.bsnet.fukt.Mandos", bus,
2180
do_not_queue=True))
2181
except dbus.exceptions.NameExistsException as e:
2182
logger.error(unicode(e) + ", disabling D-Bus")
3192
bus,
3193
do_not_queue=True)
3194
old_bus_name = dbus.service.BusName(
3195
"se.bsnet.fukt.Mandos", bus,
3196
do_not_queue=True)
3197
except dbus.exceptions.DBusException as e:
3198
logger.error("Disabling D-Bus:", exc_info=e)
2183
3199
use_dbus = False
2184
3200
server_settings["use_dbus"] = False
2185
3201
tcp_server.use_dbus = False
2186
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2187
service = AvahiServiceToSyslog(name =
2188
server_settings["servicename"],
2189
servicetype = "_mandos._tcp",
2190
protocol = protocol, bus = bus)
2191
if server_settings["interface"]:
2192
service.interface = (if_nametoindex
2193
(str(server_settings["interface"])))
2194
3202
if zeroconf:
3203
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3204
service = AvahiServiceToSyslog(
3205
name=server_settings["servicename"],
3206
servicetype="_mandos._tcp",
3207
protocol=protocol,
3208
bus=bus)
3209
if server_settings["interface"]:
3210
service.interface = if_nametoindex(
3211
server_settings["interface"].encode("utf-8"))
3212
2195
3213
global multiprocessing_manager
2196
3214
multiprocessing_manager = multiprocessing.Manager()
2197
3215
2198
3216
client_class = Client
2199
3217
if use_dbus:
2200
client_class = functools.partial(ClientDBusTransitional,
2201
bus = bus)
2202
3218
client_class = functools.partial(ClientDBus, bus=bus)
3219
2203
3220
client_settings = Client.config_parser(client_config)
2204
3221
old_client_settings = {}
2205
3222
clients_data = {}
2206
3223
3224
# This is used to redirect stdout and stderr for checker processes
3225
global wnull
3226
wnull = open(os.devnull, "w") # A writable /dev/null
3227
# Only used if server is running in foreground but not in debug
3228
# mode
3229
if debug or not foreground:
3230
wnull.close()
3231
2207
3232
# Get client data and settings from last running state.
2208
3233
if server_settings["restore"]:
2209
3234
try:
2210
3235
with open(stored_state_path, "rb") as stored_state:
2211
clients_data, old_client_settings = (pickle.load
2212
(stored_state))
3236
if sys.version_info.major == 2:
3237
clients_data, old_client_settings = pickle.load(
3238
stored_state)
3239
else:
3240
bytes_clients_data, bytes_old_client_settings = (
3241
pickle.load(stored_state, encoding="bytes"))
3242
# Fix bytes to strings
3243
# clients_data
3244
# .keys()
3245
clients_data = {(key.decode("utf-8")
3246
if isinstance(key, bytes)
3247
else key): value
3248
for key, value in
3249
bytes_clients_data.items()}
3250
del bytes_clients_data
3251
for key in clients_data:
3252
value = {(k.decode("utf-8")
3253
if isinstance(k, bytes) else k): v
3254
for k, v in
3255
clients_data[key].items()}
3256
clients_data[key] = value
3257
# .client_structure
3258
value["client_structure"] = [
3259
(s.decode("utf-8")
3260
if isinstance(s, bytes)
3261
else s) for s in
3262
value["client_structure"]]
3263
# .name, .host, and .checker_command
3264
for k in ("name", "host", "checker_command"):
3265
if isinstance(value[k], bytes):
3266
value[k] = value[k].decode("utf-8")
3267
if "key_id" not in value:
3268
value["key_id"] = ""
3269
elif "fingerprint" not in value:
3270
value["fingerprint"] = ""
3271
# old_client_settings
3272
# .keys()
3273
old_client_settings = {
3274
(key.decode("utf-8")
3275
if isinstance(key, bytes)
3276
else key): value
3277
for key, value in
3278
bytes_old_client_settings.items()}
3279
del bytes_old_client_settings
3280
# .host and .checker_command
3281
for value in old_client_settings.values():
3282
for attribute in ("host", "checker_command"):
3283
if isinstance(value[attribute], bytes):
3284
value[attribute] = (value[attribute]
3285
.decode("utf-8"))
2213
3286
os.remove(stored_state_path)
2214
3287
except IOError as e:
2215
logger.warning("Could not load persistent state: {0}"
2216
.format(e))
2217
if e.errno != errno.ENOENT:
3288
if e.errno == errno.ENOENT:
3289
logger.warning("Could not load persistent state:"
3290
" {}".format(os.strerror(e.errno)))
3291
else:
3292
logger.critical("Could not load persistent state:",
3293
exc_info=e)
2218
3294
raise
2219
3295
except EOFError as e:
2220
3296
logger.warning("Could not load persistent state: "
2221
"EOFError: {0}".format(e))
2222
3297
"EOFError:",
3298
exc_info=e)
3299
2223
3300
with PGPEngine() as pgp:
2224
for client_name, client in clients_data.iteritems():
3301
for client_name, client in clients_data.items():
3302
# Skip removed clients
3303
if client_name not in client_settings:
3304
continue
3305
2225
3306
# Decide which value to use after restoring saved state.
2226
3307
# We have three different values: Old config file,
2227
3308
# new config file, and saved state.
2232
3313
# For each value in new config, check if it
2233
3314
# differs from the old config value (Except for
2234
3315
# the "secret" attribute)
2235
if (name != "secret" and
2236
value != old_client_settings[client_name]
2237
[name]):
3316
if (name != "secret"
3317
and (value !=
3318
old_client_settings[client_name][name])):
2238
3319
client[name] = value
2239
3320
except KeyError:
2240
3321
pass
2241
3322
2242
3323
# Clients who has passed its expire date can still be
2243
# enabled if its last checker was successful. Clients
2244
# whose checker failed before we stored its state is
2245
# assumed to have failed all checkers during downtime.
3324
# enabled if its last checker was successful. A Client
3325
# whose checker succeeded before we stored its state is
3326
# assumed to have successfully run all checkers during
3327
# downtime.
2246
3328
if client["enabled"]:
2247
3329
if datetime.datetime.utcnow() >= client["expires"]:
2248
3330
if not client["last_checked_ok"]:
2249
3331
logger.warning(
2250
"disabling client {0} - Client never "
2251
"performed a successfull checker"
2252
.format(client["name"]))
3332
"disabling client {} - Client never "
3333
"performed a successful checker".format(
3334
client_name))
2253
3335
client["enabled"] = False
2254
3336
elif client["last_checker_status"] != 0:
2255
3337
logger.warning(
2256
"disabling client {0} - Client "
2257
"last checker failed with error code {1}"
2258
.format(client["name"],
2259
client["last_checker_status"]))
3338
"disabling client {} - Client last"
3339
" checker failed with error code"
3340
" {}".format(
3341
client_name,
3342
client["last_checker_status"]))
2260
3343
client["enabled"] = False
2261
3344
else:
2262
client["expires"] = (datetime.datetime
2263
.utcnow()
2264
+ client["timeout"])
2265
3345
client["expires"] = (
3346
datetime.datetime.utcnow()
3347
+ client["timeout"])
3348
logger.debug("Last checker succeeded,"
3349
" keeping {} enabled".format(
3350
client_name))
2266
3351
try:
2267
client["secret"] = (
2268
pgp.decrypt(client["encrypted_secret"],
2269
client_settings[client_name]
2270
["secret"]))
3352
client["secret"] = pgp.decrypt(
3353
client["encrypted_secret"],
3354
client_settings[client_name]["secret"])
2271
3355
except PGPError:
2272
3356
# If decryption fails, we use secret from new settings
2273
logger.debug("Failed to decrypt {0} old secret"
2274
.format(client_name))
2275
client["secret"] = (
2276
client_settings[client_name]["secret"])
3357
logger.debug("Failed to decrypt {} old secret".format(
3358
client_name))
3359
client["secret"] = (client_settings[client_name]
3360
["secret"])
2277
3361
2278
2279
3362
# Add/remove clients based on new changes made to config
2280
for client_name in set(old_client_settings) - set(client_settings):
3363
for client_name in (set(old_client_settings)
3364
- set(client_settings)):
2281
3365
del clients_data[client_name]
2282
for client_name in set(client_settings) - set(old_client_settings):
3366
for client_name in (set(client_settings)
3367
- set(old_client_settings)):
2283
3368
clients_data[client_name] = client_settings[client_name]
2284
3369
2285
# Create clients all clients
2286
for client_name, client in clients_data.iteritems():
3370
# Create all client objects
3371
for client_name, client in clients_data.items():
2287
3372
tcp_server.clients[client_name] = client_class(
2288
name = client_name, settings = client)
2289
3373
name=client_name,
3374
settings=client,
3375
server_settings=server_settings)
3376
2290
3377
if not tcp_server.clients:
2291
3378
logger.warning("No clients defined")
2292
2293
if not debug:
2294
try:
2295
with pidfile:
2296
pid = os.getpid()
2297
pidfile.write(str(pid) + "\n".encode("utf-8"))
2298
del pidfile
2299
except IOError:
2300
logger.error("Could not write to file %r with PID %d",
2301
pidfilename, pid)
2302
except NameError:
2303
# "pidfile" was never created
2304
pass
3379
3380
if not foreground:
3381
if pidfile is not None:
3382
pid = os.getpid()
3383
try:
3384
with pidfile:
3385
print(pid, file=pidfile)
3386
except IOError:
3387
logger.error("Could not write to file %r with PID %d",
3388
pidfilename, pid)
3389
del pidfile
2305
3390
del pidfilename
2306
signal.signal(signal.SIGINT, signal.SIG_IGN)
2307
2308
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2309
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2310
3391
3392
for termsig in (signal.SIGHUP, signal.SIGTERM):
3393
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3394
lambda: main_loop.quit() and False)
3395
2311
3396
if use_dbus:
2312
class MandosDBusService(dbus.service.Object):
3397
3398
@alternate_dbus_interfaces(
3399
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3400
class MandosDBusService(DBusObjectWithObjectManager):
2313
3401
"""A D-Bus proxy object"""
3402
2314
3403
def __init__(self):
2315
3404
dbus.service.Object.__init__(self, bus, "/")
3405
2316
3406
_interface = "se.recompile.Mandos"
2317
3407
2318
3408
@dbus.service.signal(_interface, signature="o")
2319
3409
def ClientAdded(self, objpath):
2320
3410
"D-Bus signal"
2321
3411
pass
2322
3412
2323
3413
@dbus.service.signal(_interface, signature="ss")
2324
def ClientNotFound(self, fingerprint, address):
3414
def ClientNotFound(self, key_id, address):
2325
3415
"D-Bus signal"
2326
3416
pass
2327
3417
3418
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3419
"true"})
2328
3420
@dbus.service.signal(_interface, signature="os")
2329
3421
def ClientRemoved(self, objpath, name):
2330
3422
"D-Bus signal"
2331
3423
pass
2332
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2333
3427
@dbus.service.method(_interface, out_signature="ao")
2334
3428
def GetAllClients(self):
2335
3429
"D-Bus method"
2336
return dbus.Array(c.dbus_object_path
2337
for c in
2338
tcp_server.clients.itervalues())
2339
3430
return dbus.Array(c.dbus_object_path for c in
3431
tcp_server.clients.values())
3432
3433
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3434
"true"})
2340
3435
@dbus.service.method(_interface,
2341
3436
out_signature="a{oa{sv}}")
2342
3437
def GetAllClientsWithProperties(self):
2343
3438
"D-Bus method"
2344
3439
return dbus.Dictionary(
2345
((c.dbus_object_path, c.GetAll(""))
2346
for c in tcp_server.clients.itervalues()),
3440
{c.dbus_object_path: c.GetAll(
3441
"se.recompile.Mandos.Client")
3442
for c in tcp_server.clients.values()},
2347
3443
signature="oa{sv}")
2348
3444
2349
3445
@dbus.service.method(_interface, in_signature="o")
2350
3446
def RemoveClient(self, object_path):
2351
3447
"D-Bus method"
2352
for c in tcp_server.clients.itervalues():
3448
for c in tcp_server.clients.values():
2353
3449
if c.dbus_object_path == object_path:
2354
3450
del tcp_server.clients[c.name]
2355
3451
c.remove_from_connection()
2356
# Don't signal anything except ClientRemoved
3452
# Don't signal the disabling
2357
3453
c.disable(quiet=True)
2358
# Emit D-Bus signal
2359
self.ClientRemoved(object_path, c.name)
3454
# Emit D-Bus signal for removal
3455
self.client_removed_signal(c)
2360
3456
return
2361
3457
raise KeyError(object_path)
2362
3458
2363
3459
del _interface
2364
2365
class MandosDBusServiceTransitional(MandosDBusService):
2366
__metaclass__ = AlternateDBusNamesMetaclass
2367
mandos_dbus_service = MandosDBusServiceTransitional()
2368
3460
3461
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3462
out_signature="a{oa{sa{sv}}}")
3463
def GetManagedObjects(self):
3464
"""D-Bus method"""
3465
return dbus.Dictionary(
3466
{client.dbus_object_path:
3467
dbus.Dictionary(
3468
{interface: client.GetAll(interface)
3469
for interface in
3470
client._get_all_interface_names()})
3471
for client in tcp_server.clients.values()})
3472
3473
def client_added_signal(self, client):
3474
"""Send the new standard signal and the old signal"""
3475
if use_dbus:
3476
# New standard signal
3477
self.InterfacesAdded(
3478
client.dbus_object_path,
3479
dbus.Dictionary(
3480
{interface: client.GetAll(interface)
3481
for interface in
3482
client._get_all_interface_names()}))
3483
# Old signal
3484
self.ClientAdded(client.dbus_object_path)
3485
3486
def client_removed_signal(self, client):
3487
"""Send the new standard signal and the old signal"""
3488
if use_dbus:
3489
# New standard signal
3490
self.InterfacesRemoved(
3491
client.dbus_object_path,
3492
client._get_all_interface_names())
3493
# Old signal
3494
self.ClientRemoved(client.dbus_object_path,
3495
client.name)
3496
3497
mandos_dbus_service = MandosDBusService()
3498
3499
# Save modules to variables to exempt the modules from being
3500
# unloaded before the function registered with atexit() is run.
3501
mp = multiprocessing
3502
wn = wnull
3503
2369
3504
def cleanup():
2370
3505
"Cleanup function; run on exit"
2371
service.cleanup()
2372
2373
multiprocessing.active_children()
3506
if zeroconf:
3507
service.cleanup()
3508
3509
mp.active_children()
3510
wn.close()
2374
3511
if not (tcp_server.clients or client_settings):
2375
3512
return
2376
3513
2377
3514
# Store client before exiting. Secrets are encrypted with key
2378
3515
# based on what config file has. If config file is
2379
3516
# removed/edited, old secret will thus be unrecovable.
2380
3517
clients = {}
2381
3518
with PGPEngine() as pgp:
2382
for client in tcp_server.clients.itervalues():
3519
for client in tcp_server.clients.values():
2383
3520
key = client_settings[client.name]["secret"]
2384
3521
client.encrypted_secret = pgp.encrypt(client.secret,
2385
3522
key)
2386
3523
client_dict = {}
2387
3524
2388
3525
# A list of attributes that can not be pickled
2389
3526
# + secret.
2390
exclude = set(("bus", "changedstate", "secret",
2391
"checker"))
2392
for name, typ in (inspect.getmembers
2393
(dbus.service.Object)):
3527
exclude = {"bus", "changedstate", "secret",
3528
"checker", "server_settings"}
3529
for name, typ in inspect.getmembers(dbus.service
3530
.Object):
2394
3531
exclude.add(name)
2395
3532
2396
3533
client_dict["encrypted_secret"] = (client
2397
3534
.encrypted_secret)
2398
3535
for attr in client.client_structure:
2399
3536
if attr not in exclude:
2400
3537
client_dict[attr] = getattr(client, attr)
2401
3538
2402
3539
clients[client.name] = client_dict
2403
3540
del client_settings[client.name]["secret"]
2404
3541
2405
3542
try:
2406
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2407
prefix="clients-",
2408
dir=os.path.dirname
2409
(stored_state_path))
2410
with os.fdopen(tempfd, "wb") as stored_state:
2411
pickle.dump((clients, client_settings), stored_state)
3543
with tempfile.NamedTemporaryFile(
3544
mode='wb',
3545
suffix=".pickle",
3546
prefix='clients-',
3547
dir=os.path.dirname(stored_state_path),
3548
delete=False) as stored_state:
3549
pickle.dump((clients, client_settings), stored_state,
3550
protocol=2)
3551
tempname = stored_state.name
2412
3552
os.rename(tempname, stored_state_path)
2413
3553
except (IOError, OSError) as e:
2414
logger.warning("Could not save persistent state: {0}"
2415
.format(e))
2416
3554
if not debug:
2417
3555
try:
2418
3556
os.remove(tempname)
2419
3557
except NameError:
2420
3558
pass
2421
if e.errno not in set((errno.ENOENT, errno.EACCES,
2422
errno.EEXIST)):
2423
raise e
2424
3559
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3560
logger.warning("Could not save persistent state: {}"
3561
.format(os.strerror(e.errno)))
3562
else:
3563
logger.warning("Could not save persistent state:",
3564
exc_info=e)
3565
raise
3566
2425
3567
# Delete all clients, and settings from config
2426
3568
while tcp_server.clients:
2427
3569
name, client = tcp_server.clients.popitem()
2428
3570
if use_dbus:
2429
3571
client.remove_from_connection()
2430
# Don't signal anything except ClientRemoved
3572
# Don't signal the disabling
2431
3573
client.disable(quiet=True)
3574
# Emit D-Bus signal for removal
2432
3575
if use_dbus:
2433
# Emit D-Bus signal
2434
mandos_dbus_service.ClientRemoved(client
2435
.dbus_object_path,
2436
client.name)
3576
mandos_dbus_service.client_removed_signal(client)
2437
3577
client_settings.clear()
2438
3578
2439
3579
atexit.register(cleanup)
2440
2441
for client in tcp_server.clients.itervalues():
3580
3581
for client in tcp_server.clients.values():
2442
3582
if use_dbus:
2443
# Emit D-Bus signal
2444
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3583
# Emit D-Bus signal for adding
3584
mandos_dbus_service.client_added_signal(client)
2445
3585
# Need to initiate checking of clients
2446
3586
if client.enabled:
2447
3587
client.init_checker()
2448
3588
2449
3589
tcp_server.enable()
2450
3590
tcp_server.server_activate()
2451
3591
2452
3592
# Find out what port we got
2453
service.port = tcp_server.socket.getsockname()[1]
3593
if zeroconf:
3594
service.port = tcp_server.socket.getsockname()[1]
2454
3595
if use_ipv6:
2455
3596
logger.info("Now listening on address %r, port %d,"
2456
" flowinfo %d, scope_id %d"
2457
% tcp_server.socket.getsockname())
3597
" flowinfo %d, scope_id %d",
3598
*tcp_server.socket.getsockname())
2458
3599
else: # IPv4
2459
logger.info("Now listening on address %r, port %d"
2460
% tcp_server.socket.getsockname())
2461
2462
#service.interface = tcp_server.socket.getsockname()[3]
2463
3600
logger.info("Now listening on address %r, port %d",
3601
*tcp_server.socket.getsockname())
3602
3603
# service.interface = tcp_server.socket.getsockname()[3]
3604
2464
3605
try:
2465
# From the Avahi example code
2466
try:
2467
service.activate()
2468
except dbus.exceptions.DBusException as error:
2469
logger.critical("DBusException: %s", error)
2470
cleanup()
2471
sys.exit(1)
2472
# End of Avahi example code
2473
2474
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2475
lambda *args, **kwargs:
2476
(tcp_server.handle_request
2477
(*args[2:], **kwargs) or True))
2478
3606
if zeroconf:
3607
# From the Avahi example code
3608
try:
3609
service.activate()
3610
except dbus.exceptions.DBusException as error:
3611
logger.critical("D-Bus Exception", exc_info=error)
3612
cleanup()
3613
sys.exit(1)
3614
# End of Avahi example code
3615
3616
GLib.io_add_watch(
3617
GLib.IOChannel.unix_new(tcp_server.fileno()),
3618
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3619
lambda *args, **kwargs: (tcp_server.handle_request
3620
(*args[2:], **kwargs) or True))
3621
2479
3622
logger.debug("Starting main loop")
2480
3623
main_loop.run()
2481
3624
except AvahiError as error:
2482
logger.critical("AvahiError: %s", error)
3625
logger.critical("Avahi Error", exc_info=error)
2483
3626
cleanup()
2484
3627
sys.exit(1)
2485
3628
except KeyboardInterrupt:
2490
3633
# Must run before the D-Bus bus name gets deregistered
2491
3634
cleanup()
2492
3635
3636
3637
def should_only_run_tests():
3638
parser = argparse.ArgumentParser(add_help=False)
3639
parser.add_argument("--check", action='store_true')
3640
args, unknown_args = parser.parse_known_args()
3641
run_tests = args.check
3642
if run_tests:
3643
# Remove --check argument from sys.argv
3644
sys.argv[1:] = unknown_args
3645
return run_tests
3646
3647
# Add all tests from doctest strings
3648
def load_tests(loader, tests, none):
3649
import doctest
3650
tests.addTests(doctest.DocTestSuite())
3651
return tests
3652
2493
3653
if __name__ == '__main__':
2494
main()
3654
try:
3655
if should_only_run_tests():
3656
# Call using ./mandos --check [--verbose]
3657
unittest.main()
3658
else:
3659
main()
3660
finally:
3661
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0