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- Committer: teddy at recompile
- Date: 2019-12-05 03:38:07 UTC
- Revision ID: teddy@recompile.se-20191205033807-6awt45zpgp194vl1
From: Frans Spiesschaert <Frans.Spiesschaert@yucom.be>
Add Dutch debconf translation
* debian/po/nl.po: New.
Acked-by: Teddy Hogeborn <teddy@recompile.se>
Add Dutch debconf translation
* debian/po/nl.po: New.
Acked-by: Teddy Hogeborn <teddy@recompile.se>
- files added:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- 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
68
81
69
82
import dbus
70
83
import dbus.service
71
import gobject
72
import avahi
84
import gi
85
from gi.repository import GLib
73
86
from dbus.mainloop.glib import DBusGMainLoop
74
87
import ctypes
75
88
import ctypes.util
76
89
import xml.dom.minidom
77
90
import inspect
78
import GnuPGInterface
79
91
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
str = unicode
95
96
# Show warnings by default
97
if not sys.warnoptions:
98
import warnings
99
warnings.simplefilter("default")
100
101
# Try to find the value of SO_BINDTODEVICE:
80
102
try:
103
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
104
# newer, and it is also the most natural place for it:
81
105
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
82
106
except AttributeError:
83
107
try:
108
# This is where SO_BINDTODEVICE was up to and including Python
109
# 2.6, and also 3.2:
84
110
from IN import SO_BINDTODEVICE
85
111
except ImportError:
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
112
# In Python 2.7 it seems to have been removed entirely.
113
# Try running the C preprocessor:
114
try:
115
cc = subprocess.Popen(["cc", "--language=c", "-E",
116
"/dev/stdin"],
117
stdin=subprocess.PIPE,
118
stdout=subprocess.PIPE)
119
stdout = cc.communicate(
120
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
121
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
122
except (OSError, ValueError, IndexError):
123
# No value found
124
SO_BINDTODEVICE = None
125
126
if sys.version_info < (3, 2):
127
configparser.Configparser = configparser.SafeConfigParser
128
129
version = "1.8.9"
89
130
stored_state_file = "clients.pickle"
90
131
91
132
logger = logging.getLogger()
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
133
logging.captureWarnings(True) # Show warnings via the logging system
134
syslogger = None
95
135
96
136
try:
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
137
if_nametoindex = ctypes.cdll.LoadLibrary(
138
ctypes.util.find_library("c")).if_nametoindex
100
139
except (OSError, AttributeError):
140
101
141
def if_nametoindex(interface):
102
142
"Get an interface index the hard way, i.e. using fcntl()"
103
143
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
104
144
with contextlib.closing(socket.socket()) as s:
105
145
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
146
struct.pack(b"16s16x", interface))
147
interface_index = struct.unpack("I", ifreq[16:20])[0]
110
148
return interface_index
111
149
112
150
151
def copy_function(func):
152
"""Make a copy of a function"""
153
if sys.version_info.major == 2:
154
return types.FunctionType(func.func_code,
155
func.func_globals,
156
func.func_name,
157
func.func_defaults,
158
func.func_closure)
159
else:
160
return types.FunctionType(func.__code__,
161
func.__globals__,
162
func.__name__,
163
func.__defaults__,
164
func.__closure__)
165
166
113
167
def initlogger(debug, level=logging.WARNING):
114
168
"""init logger and add loglevel"""
115
169
170
global syslogger
171
syslogger = (logging.handlers.SysLogHandler(
172
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
173
address="/dev/log"))
116
174
syslogger.setFormatter(logging.Formatter
117
175
('Mandos [%(process)d]: %(levelname)s:'
118
176
' %(message)s'))
119
177
logger.addHandler(syslogger)
120
178
121
179
if debug:
122
180
console = logging.StreamHandler()
123
181
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
133
191
pass
134
192
135
193
136
class PGPEngine(object):
194
class PGPEngine:
137
195
"""A simple class for OpenPGP symmetric encryption & decryption"""
196
138
197
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
140
198
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
199
self.gpg = "gpg"
200
try:
201
output = subprocess.check_output(["gpgconf"])
202
for line in output.splitlines():
203
name, text, path = line.split(b":")
204
if name == b"gpg":
205
self.gpg = path
206
break
207
except OSError as e:
208
if e.errno != errno.ENOENT:
209
raise
210
self.gnupgargs = ['--batch',
211
'--homedir', self.tempdir,
212
'--force-mdc',
213
'--quiet']
214
# Only GPG version 1 has the --no-use-agent option.
215
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
216
self.gnupgargs.append("--no-use-agent")
217
147
218
def __enter__(self):
148
219
return self
149
150
def __exit__ (self, exc_type, exc_value, traceback):
220
221
def __exit__(self, exc_type, exc_value, traceback):
151
222
self._cleanup()
152
223
return False
153
224
154
225
def __del__(self):
155
226
self._cleanup()
156
227
157
228
def _cleanup(self):
158
229
if self.tempdir is not None:
159
230
# Delete contents of tempdir
160
231
for root, dirs, files in os.walk(self.tempdir,
161
topdown = False):
232
topdown=False):
162
233
for filename in files:
163
234
os.remove(os.path.join(root, filename))
164
235
for dirname in dirs:
166
237
# Remove tempdir
167
238
os.rmdir(self.tempdir)
168
239
self.tempdir = None
169
240
170
241
def password_encode(self, password):
171
242
# Passphrase can not be empty and can not contain newlines or
172
243
# NUL bytes. So we prefix it and hex encode it.
173
return b"mandos" + binascii.hexlify(password)
174
244
encoded = b"mandos" + binascii.hexlify(password)
245
if len(encoded) > 2048:
246
# GnuPG can't handle long passwords, so encode differently
247
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
248
.replace(b"\n", b"\\n")
249
.replace(b"\0", b"\\x00"))
250
return encoded
251
175
252
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
253
passphrase = self.password_encode(password)
254
with tempfile.NamedTemporaryFile(
255
dir=self.tempdir) as passfile:
256
passfile.write(passphrase)
257
passfile.flush()
258
proc = subprocess.Popen([self.gpg, '--symmetric',
259
'--passphrase-file',
260
passfile.name]
261
+ self.gnupgargs,
262
stdin=subprocess.PIPE,
263
stdout=subprocess.PIPE,
264
stderr=subprocess.PIPE)
265
ciphertext, err = proc.communicate(input=data)
266
if proc.returncode != 0:
267
raise PGPError(err)
190
268
return ciphertext
191
269
192
270
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
271
passphrase = self.password_encode(password)
272
with tempfile.NamedTemporaryFile(
273
dir=self.tempdir) as passfile:
274
passfile.write(passphrase)
275
passfile.flush()
276
proc = subprocess.Popen([self.gpg, '--decrypt',
277
'--passphrase-file',
278
passfile.name]
279
+ self.gnupgargs,
280
stdin=subprocess.PIPE,
281
stdout=subprocess.PIPE,
282
stderr=subprocess.PIPE)
283
decrypted_plaintext, err = proc.communicate(input=data)
284
if proc.returncode != 0:
285
raise PGPError(err)
207
286
return decrypted_plaintext
208
287
209
288
289
# Pretend that we have an Avahi module
290
class avahi:
291
"""This isn't so much a class as it is a module-like namespace."""
292
IF_UNSPEC = -1 # avahi-common/address.h
293
PROTO_UNSPEC = -1 # avahi-common/address.h
294
PROTO_INET = 0 # avahi-common/address.h
295
PROTO_INET6 = 1 # avahi-common/address.h
296
DBUS_NAME = "org.freedesktop.Avahi"
297
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
298
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
299
DBUS_PATH_SERVER = "/"
300
301
@staticmethod
302
def string_array_to_txt_array(t):
303
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
304
for s in t), signature="ay")
305
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
306
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
307
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
308
SERVER_INVALID = 0 # avahi-common/defs.h
309
SERVER_REGISTERING = 1 # avahi-common/defs.h
310
SERVER_RUNNING = 2 # avahi-common/defs.h
311
SERVER_COLLISION = 3 # avahi-common/defs.h
312
SERVER_FAILURE = 4 # avahi-common/defs.h
313
210
314
211
315
class AvahiError(Exception):
212
316
def __init__(self, value, *args, **kwargs):
213
317
self.value = value
214
super(AvahiError, self).__init__(value, *args, **kwargs)
215
def __unicode__(self):
216
return unicode(repr(self.value))
318
return super(AvahiError, self).__init__(value, *args,
319
**kwargs)
320
217
321
218
322
class AvahiServiceError(AvahiError):
219
323
pass
220
324
325
221
326
class AvahiGroupError(AvahiError):
222
327
pass
223
328
224
329
225
class AvahiService(object):
330
class AvahiService:
226
331
"""An Avahi (Zeroconf) service.
227
332
228
333
Attributes:
229
334
interface: integer; avahi.IF_UNSPEC or an interface index.
230
335
Used to optionally bind to the specified interface.
231
336
name: string; Example: 'Mandos'
232
337
type: string; Example: '_mandos._tcp'.
233
See <http://www.dns-sd.org/ServiceTypes.html>
338
See <https://www.iana.org/assignments/service-names-port-numbers>
234
339
port: integer; what port to announce
235
340
TXT: list of strings; TXT record for the service
236
341
domain: string; Domain to publish on, default to .local if empty.
242
347
server: D-Bus Server
243
348
bus: dbus.SystemBus()
244
349
"""
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):
350
351
def __init__(self,
352
interface=avahi.IF_UNSPEC,
353
name=None,
354
servicetype=None,
355
port=None,
356
TXT=None,
357
domain="",
358
host="",
359
max_renames=32768,
360
protocol=avahi.PROTO_UNSPEC,
361
bus=None):
249
362
self.interface = interface
250
363
self.name = name
251
364
self.type = servicetype
260
373
self.server = None
261
374
self.bus = bus
262
375
self.entry_group_state_changed_match = None
263
def rename(self):
376
377
def rename(self, remove=True):
264
378
"""Derived from the Avahi example code"""
265
379
if self.rename_count >= self.max_renames:
266
380
logger.critical("No suitable Zeroconf service name found"
267
381
" after %i retries, exiting.",
268
382
self.rename_count)
269
383
raise AvahiServiceError("Too many renames")
270
self.name = unicode(self.server
271
.GetAlternativeServiceName(self.name))
384
self.name = str(
385
self.server.GetAlternativeServiceName(self.name))
386
self.rename_count += 1
272
387
logger.info("Changing Zeroconf service name to %r ...",
273
388
self.name)
274
self.remove()
389
if remove:
390
self.remove()
275
391
try:
276
392
self.add()
277
393
except dbus.exceptions.DBusException as error:
278
logger.critical("DBusException: %s", error)
279
self.cleanup()
280
os._exit(1)
281
self.rename_count += 1
394
if (error.get_dbus_name()
395
== "org.freedesktop.Avahi.CollisionError"):
396
logger.info("Local Zeroconf service name collision.")
397
return self.rename(remove=False)
398
else:
399
logger.critical("D-Bus Exception", exc_info=error)
400
self.cleanup()
401
os._exit(1)
402
282
403
def remove(self):
283
404
"""Derived from the Avahi example code"""
284
405
if self.entry_group_state_changed_match is not None:
286
407
self.entry_group_state_changed_match = None
287
408
if self.group is not None:
288
409
self.group.Reset()
410
289
411
def add(self):
290
412
"""Derived from the Avahi example code"""
291
413
self.remove()
308
430
dbus.UInt16(self.port),
309
431
avahi.string_array_to_txt_array(self.TXT))
310
432
self.group.Commit()
433
311
434
def entry_group_state_changed(self, state, error):
312
435
"""Derived from the Avahi example code"""
313
436
logger.debug("Avahi entry group state change: %i", state)
314
437
315
438
if state == avahi.ENTRY_GROUP_ESTABLISHED:
316
439
logger.debug("Zeroconf service established.")
317
440
elif state == avahi.ENTRY_GROUP_COLLISION:
319
442
self.rename()
320
443
elif state == avahi.ENTRY_GROUP_FAILURE:
321
444
logger.critical("Avahi: Error in group state changed %s",
322
unicode(error))
323
raise AvahiGroupError("State changed: %s"
324
% unicode(error))
445
str(error))
446
raise AvahiGroupError("State changed: {!s}".format(error))
447
325
448
def cleanup(self):
326
449
"""Derived from the Avahi example code"""
327
450
if self.group is not None:
332
455
pass
333
456
self.group = None
334
457
self.remove()
458
335
459
def server_state_changed(self, state, error=None):
336
460
"""Derived from the Avahi example code"""
337
461
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" }
462
bad_states = {
463
avahi.SERVER_INVALID: "Zeroconf server invalid",
464
avahi.SERVER_REGISTERING: None,
465
avahi.SERVER_COLLISION: "Zeroconf server name collision",
466
avahi.SERVER_FAILURE: "Zeroconf server failure",
467
}
345
468
if state in bad_states:
346
469
if bad_states[state] is not None:
347
470
if error is None:
350
473
logger.error(bad_states[state] + ": %r", error)
351
474
self.cleanup()
352
475
elif state == avahi.SERVER_RUNNING:
353
self.add()
476
try:
477
self.add()
478
except dbus.exceptions.DBusException as error:
479
if (error.get_dbus_name()
480
== "org.freedesktop.Avahi.CollisionError"):
481
logger.info("Local Zeroconf service name"
482
" collision.")
483
return self.rename(remove=False)
484
else:
485
logger.critical("D-Bus Exception", exc_info=error)
486
self.cleanup()
487
os._exit(1)
354
488
else:
355
489
if error is None:
356
490
logger.debug("Unknown state: %r", state)
357
491
else:
358
492
logger.debug("Unknown state: %r: %r", state, error)
493
359
494
def activate(self):
360
495
"""Derived from the Avahi example code"""
361
496
if self.server is None:
365
500
follow_name_owner_changes=True),
366
501
avahi.DBUS_INTERFACE_SERVER)
367
502
self.server.connect_to_signal("StateChanged",
368
self.server_state_changed)
503
self.server_state_changed)
369
504
self.server_state_changed(self.server.GetState())
370
505
506
371
507
class AvahiServiceToSyslog(AvahiService):
372
def rename(self):
508
def rename(self, *args, **kwargs):
373
509
"""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))
510
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
511
syslogger.setFormatter(logging.Formatter(
512
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
513
.format(self.name)))
379
514
return ret
380
515
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):
516
517
# Pretend that we have a GnuTLS module
518
class gnutls:
519
"""This isn't so much a class as it is a module-like namespace."""
520
521
library = ctypes.util.find_library("gnutls")
522
if library is None:
523
library = ctypes.util.find_library("gnutls-deb0")
524
_library = ctypes.cdll.LoadLibrary(library)
525
del library
526
527
# Unless otherwise indicated, the constants and types below are
528
# all from the gnutls/gnutls.h C header file.
529
530
# Constants
531
E_SUCCESS = 0
532
E_INTERRUPTED = -52
533
E_AGAIN = -28
534
CRT_OPENPGP = 2
535
CRT_RAWPK = 3
536
CLIENT = 2
537
SHUT_RDWR = 0
538
CRD_CERTIFICATE = 1
539
E_NO_CERTIFICATE_FOUND = -49
540
X509_FMT_DER = 0
541
NO_TICKETS = 1<<10
542
ENABLE_RAWPK = 1<<18
543
CTYPE_PEERS = 3
544
KEYID_USE_SHA256 = 1 # gnutls/x509.h
545
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
546
547
# Types
548
class session_int(ctypes.Structure):
549
_fields_ = []
550
session_t = ctypes.POINTER(session_int)
551
552
class certificate_credentials_st(ctypes.Structure):
553
_fields_ = []
554
certificate_credentials_t = ctypes.POINTER(
555
certificate_credentials_st)
556
certificate_type_t = ctypes.c_int
557
558
class datum_t(ctypes.Structure):
559
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
560
('size', ctypes.c_uint)]
561
562
class openpgp_crt_int(ctypes.Structure):
563
_fields_ = []
564
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
565
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
566
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
567
credentials_type_t = ctypes.c_int
568
transport_ptr_t = ctypes.c_void_p
569
close_request_t = ctypes.c_int
570
571
# Exceptions
572
class Error(Exception):
573
def __init__(self, message=None, code=None, args=()):
574
# Default usage is by a message string, but if a return
575
# code is passed, convert it to a string with
576
# gnutls.strerror()
577
self.code = code
578
if message is None and code is not None:
579
message = gnutls.strerror(code)
580
return super(gnutls.Error, self).__init__(
581
message, *args)
582
583
class CertificateSecurityError(Error):
584
pass
585
586
# Classes
587
class Credentials:
588
def __init__(self):
589
self._c_object = gnutls.certificate_credentials_t()
590
gnutls.certificate_allocate_credentials(
591
ctypes.byref(self._c_object))
592
self.type = gnutls.CRD_CERTIFICATE
593
594
def __del__(self):
595
gnutls.certificate_free_credentials(self._c_object)
596
597
class ClientSession:
598
def __init__(self, socket, credentials=None):
599
self._c_object = gnutls.session_t()
600
gnutls_flags = gnutls.CLIENT
601
if gnutls.check_version(b"3.5.6"):
602
gnutls_flags |= gnutls.NO_TICKETS
603
if gnutls.has_rawpk:
604
gnutls_flags |= gnutls.ENABLE_RAWPK
605
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
606
del gnutls_flags
607
gnutls.set_default_priority(self._c_object)
608
gnutls.transport_set_ptr(self._c_object, socket.fileno())
609
gnutls.handshake_set_private_extensions(self._c_object,
610
True)
611
self.socket = socket
612
if credentials is None:
613
credentials = gnutls.Credentials()
614
gnutls.credentials_set(self._c_object, credentials.type,
615
ctypes.cast(credentials._c_object,
616
ctypes.c_void_p))
617
self.credentials = credentials
618
619
def __del__(self):
620
gnutls.deinit(self._c_object)
621
622
def handshake(self):
623
return gnutls.handshake(self._c_object)
624
625
def send(self, data):
626
data = bytes(data)
627
data_len = len(data)
628
while data_len > 0:
629
data_len -= gnutls.record_send(self._c_object,
630
data[-data_len:],
631
data_len)
632
633
def bye(self):
634
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
635
636
# Error handling functions
637
def _error_code(result):
638
"""A function to raise exceptions on errors, suitable
639
for the 'restype' attribute on ctypes functions"""
640
if result >= 0:
641
return result
642
if result == gnutls.E_NO_CERTIFICATE_FOUND:
643
raise gnutls.CertificateSecurityError(code=result)
644
raise gnutls.Error(code=result)
645
646
def _retry_on_error(result, func, arguments):
647
"""A function to retry on some errors, suitable
648
for the 'errcheck' attribute on ctypes functions"""
649
while result < 0:
650
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
651
return _error_code(result)
652
result = func(*arguments)
653
return result
654
655
# Unless otherwise indicated, the function declarations below are
656
# all from the gnutls/gnutls.h C header file.
657
658
# Functions
659
priority_set_direct = _library.gnutls_priority_set_direct
660
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
661
ctypes.POINTER(ctypes.c_char_p)]
662
priority_set_direct.restype = _error_code
663
664
init = _library.gnutls_init
665
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
666
init.restype = _error_code
667
668
set_default_priority = _library.gnutls_set_default_priority
669
set_default_priority.argtypes = [session_t]
670
set_default_priority.restype = _error_code
671
672
record_send = _library.gnutls_record_send
673
record_send.argtypes = [session_t, ctypes.c_void_p,
674
ctypes.c_size_t]
675
record_send.restype = ctypes.c_ssize_t
676
record_send.errcheck = _retry_on_error
677
678
certificate_allocate_credentials = (
679
_library.gnutls_certificate_allocate_credentials)
680
certificate_allocate_credentials.argtypes = [
681
ctypes.POINTER(certificate_credentials_t)]
682
certificate_allocate_credentials.restype = _error_code
683
684
certificate_free_credentials = (
685
_library.gnutls_certificate_free_credentials)
686
certificate_free_credentials.argtypes = [
687
certificate_credentials_t]
688
certificate_free_credentials.restype = None
689
690
handshake_set_private_extensions = (
691
_library.gnutls_handshake_set_private_extensions)
692
handshake_set_private_extensions.argtypes = [session_t,
693
ctypes.c_int]
694
handshake_set_private_extensions.restype = None
695
696
credentials_set = _library.gnutls_credentials_set
697
credentials_set.argtypes = [session_t, credentials_type_t,
698
ctypes.c_void_p]
699
credentials_set.restype = _error_code
700
701
strerror = _library.gnutls_strerror
702
strerror.argtypes = [ctypes.c_int]
703
strerror.restype = ctypes.c_char_p
704
705
certificate_type_get = _library.gnutls_certificate_type_get
706
certificate_type_get.argtypes = [session_t]
707
certificate_type_get.restype = _error_code
708
709
certificate_get_peers = _library.gnutls_certificate_get_peers
710
certificate_get_peers.argtypes = [session_t,
711
ctypes.POINTER(ctypes.c_uint)]
712
certificate_get_peers.restype = ctypes.POINTER(datum_t)
713
714
global_set_log_level = _library.gnutls_global_set_log_level
715
global_set_log_level.argtypes = [ctypes.c_int]
716
global_set_log_level.restype = None
717
718
global_set_log_function = _library.gnutls_global_set_log_function
719
global_set_log_function.argtypes = [log_func]
720
global_set_log_function.restype = None
721
722
deinit = _library.gnutls_deinit
723
deinit.argtypes = [session_t]
724
deinit.restype = None
725
726
handshake = _library.gnutls_handshake
727
handshake.argtypes = [session_t]
728
handshake.restype = _error_code
729
handshake.errcheck = _retry_on_error
730
731
transport_set_ptr = _library.gnutls_transport_set_ptr
732
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
733
transport_set_ptr.restype = None
734
735
bye = _library.gnutls_bye
736
bye.argtypes = [session_t, close_request_t]
737
bye.restype = _error_code
738
bye.errcheck = _retry_on_error
739
740
check_version = _library.gnutls_check_version
741
check_version.argtypes = [ctypes.c_char_p]
742
check_version.restype = ctypes.c_char_p
743
744
_need_version = b"3.3.0"
745
if check_version(_need_version) is None:
746
raise self.Error("Needs GnuTLS {} or later"
747
.format(_need_version))
748
749
_tls_rawpk_version = b"3.6.6"
750
has_rawpk = bool(check_version(_tls_rawpk_version))
751
752
if has_rawpk:
753
# Types
754
class pubkey_st(ctypes.Structure):
755
_fields = []
756
pubkey_t = ctypes.POINTER(pubkey_st)
757
758
x509_crt_fmt_t = ctypes.c_int
759
760
# All the function declarations below are from gnutls/abstract.h
761
pubkey_init = _library.gnutls_pubkey_init
762
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
763
pubkey_init.restype = _error_code
764
765
pubkey_import = _library.gnutls_pubkey_import
766
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
767
x509_crt_fmt_t]
768
pubkey_import.restype = _error_code
769
770
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
771
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
772
ctypes.POINTER(ctypes.c_ubyte),
773
ctypes.POINTER(ctypes.c_size_t)]
774
pubkey_get_key_id.restype = _error_code
775
776
pubkey_deinit = _library.gnutls_pubkey_deinit
777
pubkey_deinit.argtypes = [pubkey_t]
778
pubkey_deinit.restype = None
779
else:
780
# All the function declarations below are from gnutls/openpgp.h
781
782
openpgp_crt_init = _library.gnutls_openpgp_crt_init
783
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
784
openpgp_crt_init.restype = _error_code
785
786
openpgp_crt_import = _library.gnutls_openpgp_crt_import
787
openpgp_crt_import.argtypes = [openpgp_crt_t,
788
ctypes.POINTER(datum_t),
789
openpgp_crt_fmt_t]
790
openpgp_crt_import.restype = _error_code
791
792
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
793
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
794
ctypes.POINTER(ctypes.c_uint)]
795
openpgp_crt_verify_self.restype = _error_code
796
797
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
798
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
799
openpgp_crt_deinit.restype = None
800
801
openpgp_crt_get_fingerprint = (
802
_library.gnutls_openpgp_crt_get_fingerprint)
803
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
804
ctypes.c_void_p,
805
ctypes.POINTER(
806
ctypes.c_size_t)]
807
openpgp_crt_get_fingerprint.restype = _error_code
808
809
if check_version(b"3.6.4"):
810
certificate_type_get2 = _library.gnutls_certificate_type_get2
811
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
812
certificate_type_get2.restype = _error_code
813
814
# Remove non-public functions
815
del _error_code, _retry_on_error
816
817
818
def call_pipe(connection, # : multiprocessing.Connection
819
func, *args, **kwargs):
820
"""This function is meant to be called by multiprocessing.Process
821
822
This function runs func(*args, **kwargs), and writes the resulting
823
return value on the provided multiprocessing.Connection.
824
"""
825
connection.send(func(*args, **kwargs))
826
connection.close()
827
828
829
class Client:
388
830
"""A representation of a client host served by this server.
389
831
390
832
Attributes:
391
833
approved: bool(); 'None' if not yet approved/disapproved
392
834
approval_delay: datetime.timedelta(); Time to wait for approval
393
835
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
836
checker: multiprocessing.Process(); a running checker process used
837
to see if the client lives. 'None' if no process is
838
running.
839
checker_callback_tag: a GLib event source tag, or None
398
840
checker_command: string; External command which is run to check
399
841
if client lives. %() expansions are done at
400
842
runtime with vars(self) as dict, so that for
401
843
instance %(name)s can be used in the command.
402
checker_initiator_tag: a gobject event source tag, or None
844
checker_initiator_tag: a GLib event source tag, or None
403
845
created: datetime.datetime(); (UTC) object creation
404
846
client_structure: Object describing what attributes a client has
405
847
and is used for storing the client at exit
406
848
current_checker_command: string; current running checker_command
407
disable_initiator_tag: a gobject event source tag, or None
849
disable_initiator_tag: a GLib event source tag, or None
408
850
enabled: bool()
409
851
fingerprint: string (40 or 32 hexadecimal digits); used to
410
uniquely identify the client
852
uniquely identify an OpenPGP client
853
key_id: string (64 hexadecimal digits); used to uniquely identify
854
a client using raw public keys
411
855
host: string; available for use by the checker command
412
856
interval: datetime.timedelta(); How often to start a new checker
413
857
last_approval_request: datetime.datetime(); (UTC) or None
414
858
last_checked_ok: datetime.datetime(); (UTC) or None
415
859
last_checker_status: integer between 0 and 255 reflecting exit
416
860
status of last checker. -1 reflects crashed
417
checker, or None.
861
checker, -2 means no checker completed yet.
862
last_checker_signal: The signal which killed the last checker, if
863
last_checker_status is -1
418
864
last_enabled: datetime.datetime(); (UTC) or None
419
865
name: string; from the config file, used in log messages and
420
866
D-Bus identifiers
421
867
secret: bytestring; sent verbatim (over TLS) to client
422
868
timeout: datetime.timedelta(); How long from last_checked_ok
423
869
until this client is disabled
424
extended_timeout: extra long timeout when password has been sent
870
extended_timeout: extra long timeout when secret has been sent
425
871
runtime_expansions: Allowed attributes for runtime expansion.
426
872
expires: datetime.datetime(); time (UTC) when a client will be
427
873
disabled, or None
874
server_settings: The server_settings dict from main()
428
875
"""
429
876
430
877
runtime_expansions = ("approval_delay", "approval_duration",
431
"created", "enabled", "fingerprint",
432
"host", "interval", "last_checked_ok",
878
"created", "enabled", "expires", "key_id",
879
"fingerprint", "host", "interval",
880
"last_approval_request", "last_checked_ok",
433
881
"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)
882
client_defaults = {
883
"timeout": "PT5M",
884
"extended_timeout": "PT15M",
885
"interval": "PT2M",
886
"checker": "fping -q -- %%(host)s",
887
"host": "",
888
"approval_delay": "PT0S",
889
"approval_duration": "PT1S",
890
"approved_by_default": "True",
891
"enabled": "True",
892
}
459
893
460
894
@staticmethod
461
895
def config_parser(config):
462
""" Construct a new dict of client settings of this form:
896
"""Construct a new dict of client settings of this form:
463
897
{ client_name: {setting_name: value, ...}, ...}
464
with exceptions for any special settings as defined above"""
898
with exceptions for any special settings as defined above.
899
NOTE: Must be a pure function. Must return the same result
900
value given the same arguments.
901
"""
465
902
settings = {}
466
903
for client_name in config.sections():
467
904
section = dict(config.items(client_name))
468
905
client = settings[client_name] = {}
469
906
470
907
client["host"] = section["host"]
471
908
# Reformat values from string types to Python types
472
909
client["approved_by_default"] = config.getboolean(
473
910
client_name, "approved_by_default")
474
client["enabled"] = config.getboolean(client_name, "enabled")
475
911
client["enabled"] = config.getboolean(client_name,
912
"enabled")
913
914
# Uppercase and remove spaces from key_id and fingerprint
915
# for later comparison purposes with return value from the
916
# key_id() and fingerprint() functions
917
client["key_id"] = (section.get("key_id", "").upper()
918
.replace(" ", ""))
476
919
client["fingerprint"] = (section["fingerprint"].upper()
477
920
.replace(" ", ""))
478
921
if "secret" in section:
479
client["secret"] = section["secret"].decode("base64")
922
client["secret"] = codecs.decode(section["secret"]
923
.encode("utf-8"),
924
"base64")
480
925
elif "secfile" in section:
481
926
with open(os.path.expanduser(os.path.expandvars
482
927
(section["secfile"])),
483
928
"rb") as secfile:
484
929
client["secret"] = secfile.read()
485
930
else:
486
raise TypeError("No secret or secfile for section %s"
487
% section)
931
raise TypeError("No secret or secfile for section {}"
932
.format(section))
488
933
client["timeout"] = string_to_delta(section["timeout"])
489
934
client["extended_timeout"] = string_to_delta(
490
935
section["extended_timeout"])
496
941
client["checker_command"] = section["checker"]
497
942
client["last_approval_request"] = None
498
943
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
944
client["last_checker_status"] = -2
507
945
508
946
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."""
947
948
def __init__(self, settings, name=None, server_settings=None):
515
949
self.name = name
950
if server_settings is None:
951
server_settings = {}
952
self.server_settings = server_settings
516
953
# adding all client settings
517
for setting, value in settings.iteritems():
954
for setting, value in settings.items():
518
955
setattr(self, setting, value)
519
956
957
if self.enabled:
958
if not hasattr(self, "last_enabled"):
959
self.last_enabled = datetime.datetime.utcnow()
960
if not hasattr(self, "expires"):
961
self.expires = (datetime.datetime.utcnow()
962
+ self.timeout)
963
else:
964
self.last_enabled = None
965
self.expires = None
966
520
967
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
968
logger.debug(" Key ID: %s", self.key_id)
524
969
logger.debug(" Fingerprint: %s", self.fingerprint)
525
self.created = settings.get("created", datetime.datetime.utcnow())
970
self.created = settings.get("created",
971
datetime.datetime.utcnow())
526
972
527
973
# attributes specific for this server instance
528
974
self.checker = None
532
978
self.current_checker_command = None
533
979
self.approved = None
534
980
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()
981
self.changedstate = multiprocessing_manager.Condition(
982
multiprocessing_manager.Lock())
983
self.client_structure = [attr
984
for attr in self.__dict__.keys()
540
985
if not attr.startswith("_")]
541
986
self.client_structure.append("client_structure")
542
543
for name, t in inspect.getmembers(type(self),
544
lambda obj:
545
isinstance(obj,
546
property)):
987
988
for name, t in inspect.getmembers(
989
type(self), lambda obj: isinstance(obj, property)):
547
990
if not name.startswith("_"):
548
991
self.client_structure.append(name)
549
992
550
993
# Send notice to process children that client state has changed
551
994
def send_changedstate(self):
552
995
with self.changedstate:
553
996
self.changedstate.notify_all()
554
997
555
998
def enable(self):
556
999
"""Start this client's checker and timeout hooks"""
557
1000
if getattr(self, "enabled", False):
558
1001
# Already enabled
559
1002
return
560
self.send_changedstate()
561
1003
self.expires = datetime.datetime.utcnow() + self.timeout
562
1004
self.enabled = True
563
1005
self.last_enabled = datetime.datetime.utcnow()
564
1006
self.init_checker()
565
1007
self.send_changedstate()
1008
566
1009
def disable(self, quiet=True):
567
1010
"""Disable this client."""
568
1011
if not getattr(self, "enabled", False):
569
1012
return False
570
1013
if not quiet:
571
self.send_changedstate()
572
if not quiet:
573
1014
logger.info("Disabling client %s", self.name)
574
if getattr(self, "disable_initiator_tag", False):
575
gobject.source_remove(self.disable_initiator_tag)
1015
if getattr(self, "disable_initiator_tag", None) is not None:
1016
GLib.source_remove(self.disable_initiator_tag)
576
1017
self.disable_initiator_tag = None
577
1018
self.expires = None
578
if getattr(self, "checker_initiator_tag", False):
579
gobject.source_remove(self.checker_initiator_tag)
1019
if getattr(self, "checker_initiator_tag", None) is not None:
1020
GLib.source_remove(self.checker_initiator_tag)
580
1021
self.checker_initiator_tag = None
581
1022
self.stop_checker()
582
1023
self.enabled = False
583
# Do not run this again if called by a gobject.timeout_add
1024
if not quiet:
1025
self.send_changedstate()
1026
# Do not run this again if called by a GLib.timeout_add
584
1027
return False
585
1028
586
1029
def __del__(self):
587
1030
self.disable()
588
1031
589
1032
def init_checker(self):
590
1033
# Schedule a new checker to be started an 'interval' from now,
591
1034
# and every interval from then on.
592
self.checker_initiator_tag = (gobject.timeout_add
593
(self.interval_milliseconds(),
594
self.start_checker))
1035
if self.checker_initiator_tag is not None:
1036
GLib.source_remove(self.checker_initiator_tag)
1037
self.checker_initiator_tag = GLib.timeout_add(
1038
int(self.interval.total_seconds() * 1000),
1039
self.start_checker)
595
1040
# Schedule a disable() when 'timeout' has passed
596
self.disable_initiator_tag = (gobject.timeout_add
597
(self.timeout_milliseconds(),
598
self.disable))
1041
if self.disable_initiator_tag is not None:
1042
GLib.source_remove(self.disable_initiator_tag)
1043
self.disable_initiator_tag = GLib.timeout_add(
1044
int(self.timeout.total_seconds() * 1000), self.disable)
599
1045
# Also start a new checker *right now*.
600
1046
self.start_checker()
601
602
def checker_callback(self, pid, condition, command):
1047
1048
def checker_callback(self, source, condition, connection,
1049
command):
603
1050
"""The checker has completed, so take appropriate actions."""
1051
# Read return code from connection (see call_pipe)
1052
returncode = connection.recv()
1053
connection.close()
1054
if self.checker is not None:
1055
self.checker.join()
604
1056
self.checker_callback_tag = None
605
1057
self.checker = None
606
if os.WIFEXITED(condition):
607
self.last_checker_status = os.WEXITSTATUS(condition)
1058
1059
if returncode >= 0:
1060
self.last_checker_status = returncode
1061
self.last_checker_signal = None
608
1062
if self.last_checker_status == 0:
609
1063
logger.info("Checker for %(name)s succeeded",
610
1064
vars(self))
611
1065
self.checked_ok()
612
1066
else:
613
logger.info("Checker for %(name)s failed",
614
vars(self))
1067
logger.info("Checker for %(name)s failed", vars(self))
615
1068
else:
616
1069
self.last_checker_status = -1
1070
self.last_checker_signal = -returncode
617
1071
logger.warning("Checker for %(name)s crashed?",
618
1072
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
"""
1073
return False
1074
1075
def checked_ok(self):
1076
"""Assert that the client has been seen, alive and well."""
1077
self.last_checked_ok = datetime.datetime.utcnow()
1078
self.last_checker_status = 0
1079
self.last_checker_signal = None
1080
self.bump_timeout()
1081
1082
def bump_timeout(self, timeout=None):
1083
"""Bump up the timeout for this client."""
626
1084
if timeout is None:
627
1085
timeout = self.timeout
628
self.last_checked_ok = datetime.datetime.utcnow()
629
1086
if self.disable_initiator_tag is not None:
630
gobject.source_remove(self.disable_initiator_tag)
1087
GLib.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
631
1089
if getattr(self, "enabled", False):
632
self.disable_initiator_tag = (gobject.timeout_add
633
(timedelta_to_milliseconds
634
(timeout), self.disable))
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(timeout.total_seconds() * 1000), self.disable)
635
1092
self.expires = datetime.datetime.utcnow() + timeout
636
1093
637
1094
def need_approval(self):
638
1095
self.last_approval_request = datetime.datetime.utcnow()
639
1096
640
1097
def start_checker(self):
641
1098
"""Start a new checker subprocess if one is not running.
642
1099
643
1100
If a checker already exists, leave it running and do
644
1101
nothing."""
645
1102
# 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
1103
# did that, and if a checker (for some reason) started running
1104
# slowly and taking more than 'interval' time, then the client
1105
# would inevitably timeout, since no checker would get a
1106
# chance to run to completion. If we instead leave running
650
1107
# checkers alone, the checker would have to take more time
651
1108
# than 'timeout' for the client to be disabled, which is as it
652
1109
# 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)
1110
1111
if self.checker is not None and not self.checker.is_alive():
1112
logger.warning("Checker was not alive; joining")
1113
self.checker.join()
1114
self.checker = None
667
1115
# Start a new checker if needed
668
1116
if self.checker is None:
1117
# Escape attributes for the shell
1118
escaped_attrs = {
1119
attr: re.escape(str(getattr(self, attr)))
1120
for attr in self.runtime_expansions}
669
1121
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
1122
command = self.checker_command % escaped_attrs
1123
except TypeError as error:
1124
logger.error('Could not format string "%s"',
1125
self.checker_command,
1126
exc_info=error)
1127
return True # Try again later
688
1128
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
1129
logger.info("Starting checker %r for %s", command,
1130
self.name)
1131
# We don't need to redirect stdout and stderr, since
1132
# in normal mode, that is already done by daemon(),
1133
# and in debug mode we don't want to. (Stdin is
1134
# always replaced by /dev/null.)
1135
# The exception is when not debugging but nevertheless
1136
# running in the foreground; use the previously
1137
# created wnull.
1138
popen_args = {"close_fds": True,
1139
"shell": True,
1140
"cwd": "/"}
1141
if (not self.server_settings["debug"]
1142
and self.server_settings["foreground"]):
1143
popen_args.update({"stdout": wnull,
1144
"stderr": wnull})
1145
pipe = multiprocessing.Pipe(duplex=False)
1146
self.checker = multiprocessing.Process(
1147
target=call_pipe,
1148
args=(pipe[1], subprocess.call, command),
1149
kwargs=popen_args)
1150
self.checker.start()
1151
self.checker_callback_tag = GLib.io_add_watch(
1152
GLib.IOChannel.unix_new(pipe[0].fileno()),
1153
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1154
self.checker_callback, pipe[0], command)
1155
# Re-run this periodically if run by GLib.timeout_add
713
1156
return True
714
1157
715
1158
def stop_checker(self):
716
1159
"""Force the checker process, if any, to stop."""
717
1160
if self.checker_callback_tag:
718
gobject.source_remove(self.checker_callback_tag)
1161
GLib.source_remove(self.checker_callback_tag)
719
1162
self.checker_callback_tag = None
720
1163
if getattr(self, "checker", None) is None:
721
1164
return
722
1165
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
1166
self.checker.terminate()
731
1167
self.checker = None
732
1168
733
1169
734
def dbus_service_property(dbus_interface, signature="v",
735
access="readwrite", byte_arrays=False):
1170
def dbus_service_property(dbus_interface,
1171
signature="v",
1172
access="readwrite",
1173
byte_arrays=False):
736
1174
"""Decorators for marking methods of a DBusObjectWithProperties to
737
1175
become properties on the D-Bus.
738
1176
739
1177
The decorated method will be called with no arguments by "Get"
740
1178
and with one argument by "Set".
741
1179
742
1180
The parameters, where they are supported, are the same as
743
1181
dbus.service.method, except there is only "signature", since the
744
1182
type from Get() and the type sent to Set() is the same.
747
1185
# "Set" method, so we fail early here:
748
1186
if byte_arrays and signature != "ay":
749
1187
raise ValueError("Byte arrays not supported for non-'ay'"
750
" signature %r" % signature)
1188
" signature {!r}".format(signature))
1189
751
1190
def decorator(func):
752
1191
func._dbus_is_property = True
753
1192
func._dbus_interface = dbus_interface
756
1195
func._dbus_name = func.__name__
757
1196
if func._dbus_name.endswith("_dbus_property"):
758
1197
func._dbus_name = func._dbus_name[:-14]
759
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
760
return func
1198
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1199
return func
1200
1201
return decorator
1202
1203
1204
def dbus_interface_annotations(dbus_interface):
1205
"""Decorator for marking functions returning interface annotations
1206
1207
Usage:
1208
1209
@dbus_interface_annotations("org.example.Interface")
1210
def _foo(self): # Function name does not matter
1211
return {"org.freedesktop.DBus.Deprecated": "true",
1212
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1213
"false"}
1214
"""
1215
1216
def decorator(func):
1217
func._dbus_is_interface = True
1218
func._dbus_interface = dbus_interface
1219
func._dbus_name = dbus_interface
1220
return func
1221
1222
return decorator
1223
1224
1225
def dbus_annotations(annotations):
1226
"""Decorator to annotate D-Bus methods, signals or properties
1227
Usage:
1228
1229
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property."
1231
"EmitsChangedSignal": "false"})
1232
@dbus_service_property("org.example.Interface", signature="b",
1233
access="r")
1234
def Property_dbus_property(self):
1235
return dbus.Boolean(False)
1236
1237
See also the DBusObjectWithAnnotations class.
1238
"""
1239
1240
def decorator(func):
1241
func._dbus_annotations = annotations
1242
return func
1243
761
1244
return decorator
762
1245
763
1246
764
1247
class DBusPropertyException(dbus.exceptions.DBusException):
765
1248
"""A base class for D-Bus property-related exceptions
766
1249
"""
767
def __unicode__(self):
768
return unicode(str(self))
1250
pass
769
1251
770
1252
771
1253
class DBusPropertyAccessException(DBusPropertyException):
780
1262
pass
781
1263
782
1264
783
class DBusObjectWithProperties(dbus.service.Object):
1265
class DBusObjectWithAnnotations(dbus.service.Object):
1266
"""A D-Bus object with annotations.
1267
1268
Classes inheriting from this can use the dbus_annotations
1269
decorator to add annotations to methods or signals.
1270
"""
1271
1272
@staticmethod
1273
def _is_dbus_thing(thing):
1274
"""Returns a function testing if an attribute is a D-Bus thing
1275
1276
If called like _is_dbus_thing("method") it returns a function
1277
suitable for use as predicate to inspect.getmembers().
1278
"""
1279
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1280
False)
1281
1282
def _get_all_dbus_things(self, thing):
1283
"""Returns a generator of (name, attribute) pairs
1284
"""
1285
return ((getattr(athing.__get__(self), "_dbus_name", name),
1286
athing.__get__(self))
1287
for cls in self.__class__.__mro__
1288
for name, athing in
1289
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1290
1291
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1292
out_signature="s",
1293
path_keyword='object_path',
1294
connection_keyword='connection')
1295
def Introspect(self, object_path, connection):
1296
"""Overloading of standard D-Bus method.
1297
1298
Inserts annotation tags on methods and signals.
1299
"""
1300
xmlstring = dbus.service.Object.Introspect(self, object_path,
1301
connection)
1302
try:
1303
document = xml.dom.minidom.parseString(xmlstring)
1304
1305
for if_tag in document.getElementsByTagName("interface"):
1306
# Add annotation tags
1307
for typ in ("method", "signal"):
1308
for tag in if_tag.getElementsByTagName(typ):
1309
annots = dict()
1310
for name, prop in (self.
1311
_get_all_dbus_things(typ)):
1312
if (name == tag.getAttribute("name")
1313
and prop._dbus_interface
1314
== if_tag.getAttribute("name")):
1315
annots.update(getattr(
1316
prop, "_dbus_annotations", {}))
1317
for name, value in annots.items():
1318
ann_tag = document.createElement(
1319
"annotation")
1320
ann_tag.setAttribute("name", name)
1321
ann_tag.setAttribute("value", value)
1322
tag.appendChild(ann_tag)
1323
# Add interface annotation tags
1324
for annotation, value in dict(
1325
itertools.chain.from_iterable(
1326
annotations().items()
1327
for name, annotations
1328
in self._get_all_dbus_things("interface")
1329
if name == if_tag.getAttribute("name")
1330
)).items():
1331
ann_tag = document.createElement("annotation")
1332
ann_tag.setAttribute("name", annotation)
1333
ann_tag.setAttribute("value", value)
1334
if_tag.appendChild(ann_tag)
1335
# Fix argument name for the Introspect method itself
1336
if (if_tag.getAttribute("name")
1337
== dbus.INTROSPECTABLE_IFACE):
1338
for cn in if_tag.getElementsByTagName("method"):
1339
if cn.getAttribute("name") == "Introspect":
1340
for arg in cn.getElementsByTagName("arg"):
1341
if (arg.getAttribute("direction")
1342
== "out"):
1343
arg.setAttribute("name",
1344
"xml_data")
1345
xmlstring = document.toxml("utf-8")
1346
document.unlink()
1347
except (AttributeError, xml.dom.DOMException,
1348
xml.parsers.expat.ExpatError) as error:
1349
logger.error("Failed to override Introspection method",
1350
exc_info=error)
1351
return xmlstring
1352
1353
1354
class DBusObjectWithProperties(DBusObjectWithAnnotations):
784
1355
"""A D-Bus object with properties.
785
1356
786
1357
Classes inheriting from this can use the dbus_service_property
787
1358
decorator to expose methods as D-Bus properties. It exposes the
788
1359
standard Get(), Set(), and GetAll() methods on the D-Bus.
789
1360
"""
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
1361
803
1362
def _get_dbus_property(self, interface_name, property_name):
804
1363
"""Returns a bound method if one exists which is a D-Bus
805
1364
property with the specified name and interface.
806
1365
"""
807
for cls in self.__class__.__mro__:
808
for name, value in (inspect.getmembers
809
(cls, self._is_dbus_property)):
1366
for cls in self.__class__.__mro__:
1367
for name, value in inspect.getmembers(
1368
cls, self._is_dbus_thing("property")):
810
1369
if (value._dbus_name == property_name
811
1370
and value._dbus_interface == interface_name):
812
1371
return value.__get__(self)
813
1372
814
1373
# 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",
1374
raise DBusPropertyNotFound("{}:{}.{}".format(
1375
self.dbus_object_path, interface_name, property_name))
1376
1377
@classmethod
1378
def _get_all_interface_names(cls):
1379
"""Get a sequence of all interfaces supported by an object"""
1380
return (name for name in set(getattr(getattr(x, attr),
1381
"_dbus_interface", None)
1382
for x in (inspect.getmro(cls))
1383
for attr in dir(x))
1384
if name is not None)
1385
1386
@dbus.service.method(dbus.PROPERTIES_IFACE,
1387
in_signature="ss",
820
1388
out_signature="v")
821
1389
def Get(self, interface_name, property_name):
822
1390
"""Standard D-Bus property Get() method, see D-Bus standard.
828
1396
if not hasattr(value, "variant_level"):
829
1397
return value
830
1398
return type(value)(value, variant_level=value.variant_level+1)
831
1399
832
1400
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
833
1401
def Set(self, interface_name, property_name, value):
834
1402
"""Standard D-Bus property Set() method, see D-Bus standard.
840
1408
# The byte_arrays option is not supported yet on
841
1409
# signatures other than "ay".
842
1410
if prop._dbus_signature != "ay":
843
raise ValueError
844
value = dbus.ByteArray(''.join(unichr(byte)
845
for byte in value))
1411
raise ValueError("Byte arrays not supported for non-"
1412
"'ay' signature {!r}"
1413
.format(prop._dbus_signature))
1414
value = dbus.ByteArray(bytes(value))
846
1415
prop(value)
847
848
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1416
1417
@dbus.service.method(dbus.PROPERTIES_IFACE,
1418
in_signature="s",
849
1419
out_signature="a{sv}")
850
1420
def GetAll(self, interface_name):
851
1421
"""Standard D-Bus property GetAll() method, see D-Bus
852
1422
standard.
853
1423
854
1424
Note: Will not include properties with access="write".
855
1425
"""
856
1426
properties = {}
857
for name, prop in self._get_all_dbus_properties():
1427
for name, prop in self._get_all_dbus_things("property"):
858
1428
if (interface_name
859
1429
and interface_name != prop._dbus_interface):
860
1430
# Interface non-empty but did not match
866
1436
if not hasattr(value, "variant_level"):
867
1437
properties[name] = value
868
1438
continue
869
properties[name] = type(value)(value, variant_level=
870
value.variant_level+1)
1439
properties[name] = type(value)(
1440
value, variant_level=value.variant_level + 1)
871
1441
return dbus.Dictionary(properties, signature="sv")
872
1442
1443
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1444
def PropertiesChanged(self, interface_name, changed_properties,
1445
invalidated_properties):
1446
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1447
standard.
1448
"""
1449
pass
1450
873
1451
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
874
1452
out_signature="s",
875
1453
path_keyword='object_path',
876
1454
connection_keyword='connection')
877
1455
def Introspect(self, object_path, connection):
878
"""Standard D-Bus method, overloaded to insert property tags.
1456
"""Overloading of standard D-Bus method.
1457
1458
Inserts property tags and interface annotation tags.
879
1459
"""
880
xmlstring = dbus.service.Object.Introspect(self, object_path,
881
connection)
1460
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1461
object_path,
1462
connection)
882
1463
try:
883
1464
document = xml.dom.minidom.parseString(xmlstring)
1465
884
1466
def make_tag(document, name, prop):
885
1467
e = document.createElement("property")
886
1468
e.setAttribute("name", name)
887
1469
e.setAttribute("type", prop._dbus_signature)
888
1470
e.setAttribute("access", prop._dbus_access)
889
1471
return e
1472
890
1473
for if_tag in document.getElementsByTagName("interface"):
1474
# Add property tags
891
1475
for tag in (make_tag(document, name, prop)
892
1476
for name, prop
893
in self._get_all_dbus_properties()
1477
in self._get_all_dbus_things("property")
894
1478
if prop._dbus_interface
895
1479
== if_tag.getAttribute("name")):
896
1480
if_tag.appendChild(tag)
1481
# Add annotation tags for properties
1482
for tag in if_tag.getElementsByTagName("property"):
1483
annots = dict()
1484
for name, prop in self._get_all_dbus_things(
1485
"property"):
1486
if (name == tag.getAttribute("name")
1487
and prop._dbus_interface
1488
== if_tag.getAttribute("name")):
1489
annots.update(getattr(
1490
prop, "_dbus_annotations", {}))
1491
for name, value in annots.items():
1492
ann_tag = document.createElement(
1493
"annotation")
1494
ann_tag.setAttribute("name", name)
1495
ann_tag.setAttribute("value", value)
1496
tag.appendChild(ann_tag)
897
1497
# Add the names to the return values for the
898
1498
# "org.freedesktop.DBus.Properties" methods
899
1499
if (if_tag.getAttribute("name")
914
1514
except (AttributeError, xml.dom.DOMException,
915
1515
xml.parsers.expat.ExpatError) as error:
916
1516
logger.error("Failed to override Introspection method",
917
error)
918
return xmlstring
919
920
921
def datetime_to_dbus (dt, variant_level=0):
1517
exc_info=error)
1518
return xmlstring
1519
1520
1521
try:
1522
dbus.OBJECT_MANAGER_IFACE
1523
except AttributeError:
1524
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1525
1526
1527
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1528
"""A D-Bus object with an ObjectManager.
1529
1530
Classes inheriting from this exposes the standard
1531
GetManagedObjects call and the InterfacesAdded and
1532
InterfacesRemoved signals on the standard
1533
"org.freedesktop.DBus.ObjectManager" interface.
1534
1535
Note: No signals are sent automatically; they must be sent
1536
manually.
1537
"""
1538
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1539
out_signature="a{oa{sa{sv}}}")
1540
def GetManagedObjects(self):
1541
"""This function must be overridden"""
1542
raise NotImplementedError()
1543
1544
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1545
signature="oa{sa{sv}}")
1546
def InterfacesAdded(self, object_path, interfaces_and_properties):
1547
pass
1548
1549
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1550
def InterfacesRemoved(self, object_path, interfaces):
1551
pass
1552
1553
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1554
out_signature="s",
1555
path_keyword='object_path',
1556
connection_keyword='connection')
1557
def Introspect(self, object_path, connection):
1558
"""Overloading of standard D-Bus method.
1559
1560
Override return argument name of GetManagedObjects to be
1561
"objpath_interfaces_and_properties"
1562
"""
1563
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1564
object_path,
1565
connection)
1566
try:
1567
document = xml.dom.minidom.parseString(xmlstring)
1568
1569
for if_tag in document.getElementsByTagName("interface"):
1570
# Fix argument name for the GetManagedObjects method
1571
if (if_tag.getAttribute("name")
1572
== dbus.OBJECT_MANAGER_IFACE):
1573
for cn in if_tag.getElementsByTagName("method"):
1574
if (cn.getAttribute("name")
1575
== "GetManagedObjects"):
1576
for arg in cn.getElementsByTagName("arg"):
1577
if (arg.getAttribute("direction")
1578
== "out"):
1579
arg.setAttribute(
1580
"name",
1581
"objpath_interfaces"
1582
"_and_properties")
1583
xmlstring = document.toxml("utf-8")
1584
document.unlink()
1585
except (AttributeError, xml.dom.DOMException,
1586
xml.parsers.expat.ExpatError) as error:
1587
logger.error("Failed to override Introspection method",
1588
exc_info=error)
1589
return xmlstring
1590
1591
1592
def datetime_to_dbus(dt, variant_level=0):
922
1593
"""Convert a UTC datetime.datetime() to a D-Bus type."""
923
1594
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.
1595
return dbus.String("", variant_level=variant_level)
1596
return dbus.String(dt.isoformat(), variant_level=variant_level)
1597
1598
1599
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1600
"""A class decorator; applied to a subclass of
1601
dbus.service.Object, it will add alternate D-Bus attributes with
1602
interface names according to the "alt_interface_names" mapping.
1603
Usage:
1604
1605
@alternate_dbus_interfaces({"org.example.Interface":
1606
"net.example.AlternateInterface"})
1607
class SampleDBusObject(dbus.service.Object):
1608
@dbus.service.method("org.example.Interface")
1609
def SampleDBusMethod():
1610
pass
1611
1612
The above "SampleDBusMethod" on "SampleDBusObject" will be
1613
reachable via two interfaces: "org.example.Interface" and
1614
"net.example.AlternateInterface", the latter of which will have
1615
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1616
"true", unless "deprecate" is passed with a False value.
1617
1618
This works for methods and signals, and also for D-Bus properties
1619
(from DBusObjectWithProperties) and interfaces (from the
1620
dbus_interface_annotations decorator).
933
1621
"""
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):
1622
1623
def wrapper(cls):
1624
for orig_interface_name, alt_interface_name in (
1625
alt_interface_names.items()):
1626
attr = {}
1627
interface_names = set()
1628
# Go though all attributes of the class
1629
for attrname, attribute in inspect.getmembers(cls):
941
1630
# Ignore non-D-Bus attributes, and D-Bus attributes
942
1631
# with the wrong interface name
943
1632
if (not hasattr(attribute, "_dbus_interface")
944
or not attribute._dbus_interface
945
.startswith("se.recompile.Mandos")):
1633
or not attribute._dbus_interface.startswith(
1634
orig_interface_name)):
946
1635
continue
947
1636
# Create an alternate D-Bus interface name based on
948
1637
# the current name
949
alt_interface = (attribute._dbus_interface
950
.replace("se.recompile.Mandos",
951
"se.bsnet.fukt.Mandos"))
1638
alt_interface = attribute._dbus_interface.replace(
1639
orig_interface_name, alt_interface_name)
1640
interface_names.add(alt_interface)
952
1641
# Is this a D-Bus signal?
953
1642
if getattr(attribute, "_dbus_is_signal", False):
954
# Extract the original non-method function by
955
# black magic
956
nonmethod_func = (dict(
1643
# Extract the original non-method undecorated
1644
# function by black magic
1645
if sys.version_info.major == 2:
1646
nonmethod_func = (dict(
957
1647
zip(attribute.func_code.co_freevars,
958
attribute.__closure__))["func"]
959
.cell_contents)
1648
attribute.__closure__))
1649
["func"].cell_contents)
1650
else:
1651
nonmethod_func = (dict(
1652
zip(attribute.__code__.co_freevars,
1653
attribute.__closure__))
1654
["func"].cell_contents)
960
1655
# Create a new, but exactly alike, function
961
1656
# object, and decorate it to be a new D-Bus signal
962
1657
# 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)))
1658
new_function = copy_function(nonmethod_func)
1659
new_function = (dbus.service.signal(
1660
alt_interface,
1661
attribute._dbus_signature)(new_function))
1662
# Copy annotations, if any
1663
try:
1664
new_function._dbus_annotations = dict(
1665
attribute._dbus_annotations)
1666
except AttributeError:
1667
pass
1668
972
1669
# 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
1670
# original and alternate functions, so both the
1671
# original and alternate signals gets sent when
1672
# the function is called
975
1673
def fixscope(func1, func2):
976
1674
"""This function is a scope container to pass
977
1675
func1 and func2 to the "call_both" function
978
1676
outside of its arguments"""
1677
1678
@functools.wraps(func2)
979
1679
def call_both(*args, **kwargs):
980
1680
"""This function will emit two D-Bus
981
1681
signals by calling func1 and func2"""
982
1682
func1(*args, **kwargs)
983
1683
func2(*args, **kwargs)
1684
# Make wrapper function look like a D-Bus
1685
# signal
1686
for name, attr in inspect.getmembers(func2):
1687
if name.startswith("_dbus_"):
1688
setattr(call_both, name, attr)
1689
984
1690
return call_both
985
1691
# Create the "call_both" function and add it to
986
1692
# the class
987
attr[attrname] = fixscope(attribute,
988
new_function)
1693
attr[attrname] = fixscope(attribute, new_function)
989
1694
# Is this a D-Bus method?
990
1695
elif getattr(attribute, "_dbus_is_method", False):
991
1696
# Create a new, but exactly alike, function
992
1697
# object. Decorate it to be a new D-Bus method
993
1698
# with the alternate D-Bus interface name. Add it
994
1699
# 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)))
1700
attr[attrname] = (
1701
dbus.service.method(
1702
alt_interface,
1703
attribute._dbus_in_signature,
1704
attribute._dbus_out_signature)
1705
(copy_function(attribute)))
1706
# Copy annotations, if any
1707
try:
1708
attr[attrname]._dbus_annotations = dict(
1709
attribute._dbus_annotations)
1710
except AttributeError:
1711
pass
1005
1712
# Is this a D-Bus property?
1006
1713
elif getattr(attribute, "_dbus_is_property", False):
1007
1714
# Create a new, but exactly alike, function
1008
1715
# object, and decorate it to be a new D-Bus
1009
1716
# property with the alternate D-Bus interface
1010
1717
# 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
1718
attr[attrname] = (dbus_service_property(
1719
alt_interface, attribute._dbus_signature,
1720
attribute._dbus_access,
1721
attribute._dbus_get_args_options
1722
["byte_arrays"])
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
1730
# Is this a D-Bus interface?
1731
elif getattr(attribute, "_dbus_is_interface", False):
1732
# Create a new, but exactly alike, function
1733
# object. Decorate it to be a new D-Bus interface
1734
# with the alternate D-Bus interface name. Add it
1735
# to the class.
1736
attr[attrname] = (
1737
dbus_interface_annotations(alt_interface)
1738
(copy_function(attribute)))
1739
if deprecate:
1740
# Deprecate all alternate interfaces
1741
iname = "_AlternateDBusNames_interface_annotation{}"
1742
for interface_name in interface_names:
1743
1744
@dbus_interface_annotations(interface_name)
1745
def func(self):
1746
return {"org.freedesktop.DBus.Deprecated":
1747
"true"}
1748
# Find an unused name
1749
for aname in (iname.format(i)
1750
for i in itertools.count()):
1751
if aname not in attr:
1752
attr[aname] = func
1753
break
1754
if interface_names:
1755
# Replace the class with a new subclass of it with
1756
# methods, signals, etc. as created above.
1757
if sys.version_info.major == 2:
1758
cls = type(b"{}Alternate".format(cls.__name__),
1759
(cls, ), attr)
1760
else:
1761
cls = type("{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
return cls
1764
1765
return wrapper
1766
1767
1768
@alternate_dbus_interfaces({"se.recompile.Mandos":
1769
"se.bsnet.fukt.Mandos"})
1027
1770
class ClientDBus(Client, DBusObjectWithProperties):
1028
1771
"""A Client class using D-Bus
1029
1772
1030
1773
Attributes:
1031
1774
dbus_object_path: dbus.ObjectPath
1032
1775
bus: dbus.SystemBus()
1033
1776
"""
1034
1777
1035
1778
runtime_expansions = (Client.runtime_expansions
1036
+ ("dbus_object_path",))
1037
1779
+ ("dbus_object_path", ))
1780
1781
_interface = "se.recompile.Mandos.Client"
1782
1038
1783
# dbus.service.Object doesn't use super(), so we can't either.
1039
1040
def __init__(self, bus = None, *args, **kwargs):
1784
1785
def __init__(self, bus=None, *args, **kwargs):
1041
1786
self.bus = bus
1042
1787
Client.__init__(self, *args, **kwargs)
1043
self._approvals_pending = 0
1044
1045
self._approvals_pending = 0
1046
1788
# Only now, when this client is initialized, can it show up on
1047
1789
# the D-Bus
1048
client_object_name = unicode(self.name).translate(
1790
client_object_name = str(self.name).translate(
1049
1791
{ord("."): ord("_"),
1050
1792
ord("-"): ord("_")})
1051
self.dbus_object_path = (dbus.ObjectPath
1052
("/clients/" + client_object_name))
1793
self.dbus_object_path = dbus.ObjectPath(
1794
"/clients/" + client_object_name)
1053
1795
DBusObjectWithProperties.__init__(self, self.bus,
1054
1796
self.dbus_object_path)
1055
1056
def notifychangeproperty(transform_func,
1057
dbus_name, type_func=lambda x: x,
1058
variant_level=1):
1797
1798
def notifychangeproperty(transform_func, dbus_name,
1799
type_func=lambda x: x,
1800
variant_level=1,
1801
invalidate_only=False,
1802
_interface=_interface):
1059
1803
""" Modify a variable so that it's a property which announces
1060
1804
its changes to DBus.
1061
1805
1062
1806
transform_fun: Function that takes a value and a variant_level
1063
1807
and transforms it to a D-Bus type.
1064
1808
dbus_name: D-Bus name of the variable
1066
1810
to the D-Bus. Default: no transform
1067
1811
variant_level: D-Bus variant level. Default: 1
1068
1812
"""
1069
attrname = "_{0}".format(dbus_name)
1813
attrname = "_{}".format(dbus_name)
1814
1070
1815
def setter(self, value):
1071
1816
if hasattr(self, "dbus_object_path"):
1072
1817
if (not hasattr(self, attrname) or
1073
1818
type_func(getattr(self, attrname, None))
1074
1819
!= 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)
1820
if invalidate_only:
1821
self.PropertiesChanged(
1822
_interface, dbus.Dictionary(),
1823
dbus.Array((dbus_name, )))
1824
else:
1825
dbus_value = transform_func(
1826
type_func(value),
1827
variant_level=variant_level)
1828
self.PropertyChanged(dbus.String(dbus_name),
1829
dbus_value)
1830
self.PropertiesChanged(
1831
_interface,
1832
dbus.Dictionary({dbus.String(dbus_name):
1833
dbus_value}),
1834
dbus.Array())
1080
1835
setattr(self, attrname, value)
1081
1836
1082
1837
return property(lambda self: getattr(self, attrname), setter)
1083
1084
1838
1085
1839
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1086
1840
approvals_pending = notifychangeproperty(dbus.Boolean,
1087
1841
"ApprovalPending",
1088
type_func = bool)
1842
type_func=bool)
1089
1843
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1090
1844
last_enabled = notifychangeproperty(datetime_to_dbus,
1091
1845
"LastEnabled")
1092
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1093
type_func = lambda checker:
1094
checker is not None)
1846
checker = notifychangeproperty(
1847
dbus.Boolean, "CheckerRunning",
1848
type_func=lambda checker: checker is not None)
1095
1849
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1096
1850
"LastCheckedOK")
1851
last_checker_status = notifychangeproperty(dbus.Int16,
1852
"LastCheckerStatus")
1097
1853
last_approval_request = notifychangeproperty(
1098
1854
datetime_to_dbus, "LastApprovalRequest")
1099
1855
approved_by_default = notifychangeproperty(dbus.Boolean,
1100
1856
"ApprovedByDefault")
1101
approval_delay = notifychangeproperty(dbus.UInt64,
1102
"ApprovalDelay",
1103
type_func =
1104
timedelta_to_milliseconds)
1857
approval_delay = notifychangeproperty(
1858
dbus.UInt64, "ApprovalDelay",
1859
type_func=lambda td: td.total_seconds() * 1000)
1105
1860
approval_duration = notifychangeproperty(
1106
1861
dbus.UInt64, "ApprovalDuration",
1107
type_func = timedelta_to_milliseconds)
1862
type_func=lambda td: td.total_seconds() * 1000)
1108
1863
host = notifychangeproperty(dbus.String, "Host")
1109
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1110
type_func =
1111
timedelta_to_milliseconds)
1864
timeout = notifychangeproperty(
1865
dbus.UInt64, "Timeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
1112
1867
extended_timeout = notifychangeproperty(
1113
1868
dbus.UInt64, "ExtendedTimeout",
1114
type_func = timedelta_to_milliseconds)
1115
interval = notifychangeproperty(dbus.UInt64,
1116
"Interval",
1117
type_func =
1118
timedelta_to_milliseconds)
1869
type_func=lambda td: td.total_seconds() * 1000)
1870
interval = notifychangeproperty(
1871
dbus.UInt64, "Interval",
1872
type_func=lambda td: td.total_seconds() * 1000)
1119
1873
checker_command = notifychangeproperty(dbus.String, "Checker")
1120
1874
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1875
invalidate_only=True)
1876
1121
1877
del notifychangeproperty
1122
1878
1123
1879
def __del__(self, *args, **kwargs):
1124
1880
try:
1125
1881
self.remove_from_connection()
1128
1884
if hasattr(DBusObjectWithProperties, "__del__"):
1129
1885
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1130
1886
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)
1887
1888
def checker_callback(self, source, condition,
1889
connection, command, *args, **kwargs):
1890
ret = Client.checker_callback(self, source, condition,
1891
connection, command, *args,
1892
**kwargs)
1893
exitstatus = self.last_checker_status
1894
if exitstatus >= 0:
1138
1895
# Emit D-Bus signal
1139
1896
self.CheckerCompleted(dbus.Int16(exitstatus),
1140
dbus.Int64(condition),
1897
# This is specific to GNU libC
1898
dbus.Int64(exitstatus << 8),
1141
1899
dbus.String(command))
1142
1900
else:
1143
1901
# Emit D-Bus signal
1144
1902
self.CheckerCompleted(dbus.Int16(-1),
1145
dbus.Int64(condition),
1903
dbus.Int64(
1904
# This is specific to GNU libC
1905
(exitstatus << 8)
1906
| self.last_checker_signal),
1146
1907
dbus.String(command))
1147
1148
return Client.checker_callback(self, pid, condition, command,
1149
*args, **kwargs)
1150
1908
return ret
1909
1151
1910
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
1911
old_checker_pid = getattr(self.checker, "pid", None)
1157
1912
r = Client.start_checker(self, *args, **kwargs)
1158
1913
# Only if new checker process was started
1159
1914
if (self.checker is not None
1161
1916
# Emit D-Bus signal
1162
1917
self.CheckerStarted(self.current_checker_command)
1163
1918
return r
1164
1919
1165
1920
def _reset_approved(self):
1166
1921
self.approved = None
1167
1922
return False
1168
1923
1169
1924
def approve(self, value=True):
1170
self.send_changedstate()
1171
1925
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
1926
GLib.timeout_add(int(self.approval_duration.total_seconds()
1927
* 1000), self._reset_approved)
1928
self.send_changedstate()
1929
1930
# D-Bus methods, signals & properties
1931
1932
# Interfaces
1933
1934
# Signals
1935
1182
1936
# CheckerCompleted - signal
1183
1937
@dbus.service.signal(_interface, signature="nxs")
1184
1938
def CheckerCompleted(self, exitcode, waitstatus, command):
1185
1939
"D-Bus signal"
1186
1940
pass
1187
1941
1188
1942
# CheckerStarted - signal
1189
1943
@dbus.service.signal(_interface, signature="s")
1190
1944
def CheckerStarted(self, command):
1191
1945
"D-Bus signal"
1192
1946
pass
1193
1947
1194
1948
# PropertyChanged - signal
1949
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1195
1950
@dbus.service.signal(_interface, signature="sv")
1196
1951
def PropertyChanged(self, property, value):
1197
1952
"D-Bus signal"
1198
1953
pass
1199
1954
1200
1955
# GotSecret - signal
1201
1956
@dbus.service.signal(_interface)
1202
1957
def GotSecret(self):
1205
1960
server to mandos-client
1206
1961
"""
1207
1962
pass
1208
1963
1209
1964
# Rejected - signal
1210
1965
@dbus.service.signal(_interface, signature="s")
1211
1966
def Rejected(self, reason):
1212
1967
"D-Bus signal"
1213
1968
pass
1214
1969
1215
1970
# NeedApproval - signal
1216
1971
@dbus.service.signal(_interface, signature="tb")
1217
1972
def NeedApproval(self, timeout, default):
1218
1973
"D-Bus signal"
1219
1974
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
1975
1976
# Methods
1977
1231
1978
# Approve - method
1232
1979
@dbus.service.method(_interface, in_signature="b")
1233
1980
def Approve(self, value):
1234
1981
self.approve(value)
1235
1982
1236
1983
# CheckedOK - method
1237
1984
@dbus.service.method(_interface)
1238
1985
def CheckedOK(self):
1239
1986
self.checked_ok()
1240
1987
1241
1988
# Enable - method
1989
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1242
1990
@dbus.service.method(_interface)
1243
1991
def Enable(self):
1244
1992
"D-Bus method"
1245
1993
self.enable()
1246
1994
1247
1995
# StartChecker - method
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1248
1997
@dbus.service.method(_interface)
1249
1998
def StartChecker(self):
1250
1999
"D-Bus method"
1251
2000
self.start_checker()
1252
2001
1253
2002
# Disable - method
2003
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1254
2004
@dbus.service.method(_interface)
1255
2005
def Disable(self):
1256
2006
"D-Bus method"
1257
2007
self.disable()
1258
2008
1259
2009
# StopChecker - method
2010
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1260
2011
@dbus.service.method(_interface)
1261
2012
def StopChecker(self):
1262
2013
self.stop_checker()
1263
1264
## Properties
1265
2014
2015
# Properties
2016
1266
2017
# ApprovalPending - property
1267
2018
@dbus_service_property(_interface, signature="b", access="read")
1268
2019
def ApprovalPending_dbus_property(self):
1269
2020
return dbus.Boolean(bool(self.approvals_pending))
1270
2021
1271
2022
# ApprovedByDefault - property
1272
@dbus_service_property(_interface, signature="b",
2023
@dbus_service_property(_interface,
2024
signature="b",
1273
2025
access="readwrite")
1274
2026
def ApprovedByDefault_dbus_property(self, value=None):
1275
2027
if value is None: # get
1276
2028
return dbus.Boolean(self.approved_by_default)
1277
2029
self.approved_by_default = bool(value)
1278
2030
1279
2031
# ApprovalDelay - property
1280
@dbus_service_property(_interface, signature="t",
2032
@dbus_service_property(_interface,
2033
signature="t",
1281
2034
access="readwrite")
1282
2035
def ApprovalDelay_dbus_property(self, value=None):
1283
2036
if value is None: # get
1284
return dbus.UInt64(self.approval_delay_milliseconds())
2037
return dbus.UInt64(self.approval_delay.total_seconds()
2038
* 1000)
1285
2039
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1286
2040
1287
2041
# ApprovalDuration - property
1288
@dbus_service_property(_interface, signature="t",
2042
@dbus_service_property(_interface,
2043
signature="t",
1289
2044
access="readwrite")
1290
2045
def ApprovalDuration_dbus_property(self, value=None):
1291
2046
if value is None: # get
1292
return dbus.UInt64(timedelta_to_milliseconds(
1293
self.approval_duration))
2047
return dbus.UInt64(self.approval_duration.total_seconds()
2048
* 1000)
1294
2049
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1295
2050
1296
2051
# Name - property
2052
@dbus_annotations(
2053
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1297
2054
@dbus_service_property(_interface, signature="s", access="read")
1298
2055
def Name_dbus_property(self):
1299
2056
return dbus.String(self.name)
1300
2057
2058
# KeyID - property
2059
@dbus_annotations(
2060
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2061
@dbus_service_property(_interface, signature="s", access="read")
2062
def KeyID_dbus_property(self):
2063
return dbus.String(self.key_id)
2064
1301
2065
# Fingerprint - property
2066
@dbus_annotations(
2067
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1302
2068
@dbus_service_property(_interface, signature="s", access="read")
1303
2069
def Fingerprint_dbus_property(self):
1304
2070
return dbus.String(self.fingerprint)
1305
2071
1306
2072
# Host - property
1307
@dbus_service_property(_interface, signature="s",
2073
@dbus_service_property(_interface,
2074
signature="s",
1308
2075
access="readwrite")
1309
2076
def Host_dbus_property(self, value=None):
1310
2077
if value is None: # get
1311
2078
return dbus.String(self.host)
1312
self.host = unicode(value)
1313
2079
self.host = str(value)
2080
1314
2081
# Created - property
2082
@dbus_annotations(
2083
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1315
2084
@dbus_service_property(_interface, signature="s", access="read")
1316
2085
def Created_dbus_property(self):
1317
2086
return datetime_to_dbus(self.created)
1318
2087
1319
2088
# LastEnabled - property
1320
2089
@dbus_service_property(_interface, signature="s", access="read")
1321
2090
def LastEnabled_dbus_property(self):
1322
2091
return datetime_to_dbus(self.last_enabled)
1323
2092
1324
2093
# Enabled - property
1325
@dbus_service_property(_interface, signature="b",
2094
@dbus_service_property(_interface,
2095
signature="b",
1326
2096
access="readwrite")
1327
2097
def Enabled_dbus_property(self, value=None):
1328
2098
if value is None: # get
1331
2101
self.enable()
1332
2102
else:
1333
2103
self.disable()
1334
2104
1335
2105
# LastCheckedOK - property
1336
@dbus_service_property(_interface, signature="s",
2106
@dbus_service_property(_interface,
2107
signature="s",
1337
2108
access="readwrite")
1338
2109
def LastCheckedOK_dbus_property(self, value=None):
1339
2110
if value is not None:
1340
2111
self.checked_ok()
1341
2112
return
1342
2113
return datetime_to_dbus(self.last_checked_ok)
1343
2114
2115
# LastCheckerStatus - property
2116
@dbus_service_property(_interface, signature="n", access="read")
2117
def LastCheckerStatus_dbus_property(self):
2118
return dbus.Int16(self.last_checker_status)
2119
1344
2120
# Expires - property
1345
2121
@dbus_service_property(_interface, signature="s", access="read")
1346
2122
def Expires_dbus_property(self):
1347
2123
return datetime_to_dbus(self.expires)
1348
2124
1349
2125
# LastApprovalRequest - property
1350
2126
@dbus_service_property(_interface, signature="s", access="read")
1351
2127
def LastApprovalRequest_dbus_property(self):
1352
2128
return datetime_to_dbus(self.last_approval_request)
1353
2129
1354
2130
# Timeout - property
1355
@dbus_service_property(_interface, signature="t",
2131
@dbus_service_property(_interface,
2132
signature="t",
1356
2133
access="readwrite")
1357
2134
def Timeout_dbus_property(self, value=None):
1358
2135
if value is None: # get
1359
return dbus.UInt64(self.timeout_milliseconds())
2136
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2137
old_timeout = self.timeout
1360
2138
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
2139
# Reschedule disabling
2140
if self.enabled:
2141
now = datetime.datetime.utcnow()
2142
self.expires += self.timeout - old_timeout
2143
if self.expires <= now:
2144
# The timeout has passed
2145
self.disable()
2146
else:
2147
if (getattr(self, "disable_initiator_tag", None)
2148
is None):
2149
return
2150
GLib.source_remove(self.disable_initiator_tag)
2151
self.disable_initiator_tag = GLib.timeout_add(
2152
int((self.expires - now).total_seconds() * 1000),
2153
self.disable)
2154
1382
2155
# ExtendedTimeout - property
1383
@dbus_service_property(_interface, signature="t",
2156
@dbus_service_property(_interface,
2157
signature="t",
1384
2158
access="readwrite")
1385
2159
def ExtendedTimeout_dbus_property(self, value=None):
1386
2160
if value is None: # get
1387
return dbus.UInt64(self.extended_timeout_milliseconds())
2161
return dbus.UInt64(self.extended_timeout.total_seconds()
2162
* 1000)
1388
2163
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1389
2164
1390
2165
# Interval - property
1391
@dbus_service_property(_interface, signature="t",
2166
@dbus_service_property(_interface,
2167
signature="t",
1392
2168
access="readwrite")
1393
2169
def Interval_dbus_property(self, value=None):
1394
2170
if value is None: # get
1395
return dbus.UInt64(self.interval_milliseconds())
2171
return dbus.UInt64(self.interval.total_seconds() * 1000)
1396
2172
self.interval = datetime.timedelta(0, 0, 0, value)
1397
2173
if getattr(self, "checker_initiator_tag", None) is None:
1398
2174
return
1399
2175
if self.enabled:
1400
2176
# 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
2177
GLib.source_remove(self.checker_initiator_tag)
2178
self.checker_initiator_tag = GLib.timeout_add(
2179
value, self.start_checker)
2180
self.start_checker() # Start one now, too
2181
1406
2182
# Checker - property
1407
@dbus_service_property(_interface, signature="s",
2183
@dbus_service_property(_interface,
2184
signature="s",
1408
2185
access="readwrite")
1409
2186
def Checker_dbus_property(self, value=None):
1410
2187
if value is None: # get
1411
2188
return dbus.String(self.checker_command)
1412
self.checker_command = unicode(value)
1413
2189
self.checker_command = str(value)
2190
1414
2191
# CheckerRunning - property
1415
@dbus_service_property(_interface, signature="b",
2192
@dbus_service_property(_interface,
2193
signature="b",
1416
2194
access="readwrite")
1417
2195
def CheckerRunning_dbus_property(self, value=None):
1418
2196
if value is None: # get
1421
2199
self.start_checker()
1422
2200
else:
1423
2201
self.stop_checker()
1424
2202
1425
2203
# ObjectPath - property
2204
@dbus_annotations(
2205
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2206
"org.freedesktop.DBus.Deprecated": "true"})
1426
2207
@dbus_service_property(_interface, signature="o", access="read")
1427
2208
def ObjectPath_dbus_property(self):
1428
return self.dbus_object_path # is already a dbus.ObjectPath
1429
2209
return self.dbus_object_path # is already a dbus.ObjectPath
2210
1430
2211
# Secret = property
1431
@dbus_service_property(_interface, signature="ay",
1432
access="write", byte_arrays=True)
2212
@dbus_annotations(
2213
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2214
"invalidates"})
2215
@dbus_service_property(_interface,
2216
signature="ay",
2217
access="write",
2218
byte_arrays=True)
1433
2219
def Secret_dbus_property(self, value):
1434
self.secret = str(value)
1435
2220
self.secret = bytes(value)
2221
1436
2222
del _interface
1437
2223
1438
2224
1439
class ProxyClient(object):
1440
def __init__(self, child_pipe, fpr, address):
2225
class ProxyClient:
2226
def __init__(self, child_pipe, key_id, fpr, address):
1441
2227
self._pipe = child_pipe
1442
self._pipe.send(('init', fpr, address))
2228
self._pipe.send(('init', key_id, fpr, address))
1443
2229
if not self._pipe.recv():
1444
raise KeyError()
1445
2230
raise KeyError(key_id or fpr)
2231
1446
2232
def __getattribute__(self, name):
1447
2233
if name == '_pipe':
1448
2234
return super(ProxyClient, self).__getattribute__(name)
1451
2237
if data[0] == 'data':
1452
2238
return data[1]
1453
2239
if data[0] == 'function':
2240
1454
2241
def func(*args, **kwargs):
1455
2242
self._pipe.send(('funcall', name, args, kwargs))
1456
2243
return self._pipe.recv()[1]
2244
1457
2245
return func
1458
2246
1459
2247
def __setattr__(self, name, value):
1460
2248
if name == '_pipe':
1461
2249
return super(ProxyClient, self).__setattr__(name, value)
1462
2250
self._pipe.send(('setattr', name, value))
1463
2251
1464
2252
1465
class ClientDBusTransitional(ClientDBus):
1466
__metaclass__ = AlternateDBusNamesMetaclass
1467
1468
1469
2253
class ClientHandler(socketserver.BaseRequestHandler, object):
1470
2254
"""A class to handle client connections.
1471
2255
1472
2256
Instantiated once for each connection to handle it.
1473
2257
Note: This will run in its own forked process."""
1474
2258
1475
2259
def handle(self):
1476
2260
with contextlib.closing(self.server.child_pipe) as child_pipe:
1477
2261
logger.info("TCP connection from: %s",
1478
unicode(self.client_address))
2262
str(self.client_address))
1479
2263
logger.debug("Pipe FD: %d",
1480
2264
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"))
2265
2266
session = gnutls.ClientSession(self.request)
2267
2268
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2269
# "+AES-256-CBC", "+SHA1",
2270
# "+COMP-NULL", "+CTYPE-OPENPGP",
2271
# "+DHE-DSS"))
1496
2272
# Use a fallback default, since this MUST be set.
1497
2273
priority = self.server.gnutls_priority
1498
2274
if priority is None:
1499
2275
priority = "NORMAL"
1500
(gnutls.library.functions
1501
.gnutls_priority_set_direct(session._c_object,
1502
priority, None))
1503
2276
gnutls.priority_set_direct(session._c_object,
2277
priority.encode("utf-8"),
2278
None)
2279
1504
2280
# Start communication using the Mandos protocol
1505
2281
# Get protocol number
1506
2282
line = self.request.makefile().readline()
1507
2283
logger.debug("Protocol version: %r", line)
1508
2284
try:
1509
2285
if int(line.strip().split()[0]) > 1:
1510
raise RuntimeError
2286
raise RuntimeError(line)
1511
2287
except (ValueError, IndexError, RuntimeError) as error:
1512
2288
logger.error("Unknown protocol version: %s", error)
1513
2289
return
1514
2290
1515
2291
# Start GnuTLS connection
1516
2292
try:
1517
2293
session.handshake()
1518
except gnutls.errors.GNUTLSError as error:
2294
except gnutls.Error as error:
1519
2295
logger.warning("Handshake failed: %s", error)
1520
2296
# Do not run session.bye() here: the session is not
1521
2297
# established. Just abandon the request.
1522
2298
return
1523
2299
logger.debug("Handshake succeeded")
1524
2300
1525
2301
approval_required = False
1526
2302
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,
2303
if gnutls.has_rawpk:
2304
fpr = b""
2305
try:
2306
key_id = self.key_id(
2307
self.peer_certificate(session))
2308
except (TypeError, gnutls.Error) as error:
2309
logger.warning("Bad certificate: %s", error)
2310
return
2311
logger.debug("Key ID: %s", key_id)
2312
2313
else:
2314
key_id = b""
2315
try:
2316
fpr = self.fingerprint(
2317
self.peer_certificate(session))
2318
except (TypeError, gnutls.Error) as error:
2319
logger.warning("Bad certificate: %s", error)
2320
return
2321
logger.debug("Fingerprint: %s", fpr)
2322
2323
try:
2324
client = ProxyClient(child_pipe, key_id, fpr,
1538
2325
self.client_address)
1539
2326
except KeyError:
1540
2327
return
1541
1542
if self.server.use_dbus:
1543
# Emit D-Bus signal
1544
client.NewRequest(str(self.client_address))
1545
2328
1546
2329
if client.approval_delay:
1547
2330
delay = client.approval_delay
1548
2331
client.approvals_pending += 1
1549
2332
approval_required = True
1550
2333
1551
2334
while True:
1552
2335
if not client.enabled:
1553
2336
logger.info("Client %s is disabled",
1554
client.name)
2337
client.name)
1555
2338
if self.server.use_dbus:
1556
2339
# Emit D-Bus signal
1557
2340
client.Rejected("Disabled")
1558
2341
return
1559
2342
1560
2343
if client.approved or not client.approval_delay:
1561
#We are approved or approval is disabled
2344
# We are approved or approval is disabled
1562
2345
break
1563
2346
elif client.approved is None:
1564
2347
logger.info("Client %s needs approval",
1566
2349
if self.server.use_dbus:
1567
2350
# Emit D-Bus signal
1568
2351
client.NeedApproval(
1569
client.approval_delay_milliseconds(),
1570
client.approved_by_default)
2352
client.approval_delay.total_seconds()
2353
* 1000, client.approved_by_default)
1571
2354
else:
1572
2355
logger.warning("Client %s was not approved",
1573
2356
client.name)
1575
2358
# Emit D-Bus signal
1576
2359
client.Rejected("Denied")
1577
2360
return
1578
1579
#wait until timeout or approved
2361
2362
# wait until timeout or approved
1580
2363
time = datetime.datetime.now()
1581
2364
client.changedstate.acquire()
1582
(client.changedstate.wait
1583
(float(client.timedelta_to_milliseconds(delay)
1584
/ 1000)))
2365
client.changedstate.wait(delay.total_seconds())
1585
2366
client.changedstate.release()
1586
2367
time2 = datetime.datetime.now()
1587
2368
if (time2 - time) >= delay:
1597
2378
break
1598
2379
else:
1599
2380
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
2381
2382
try:
2383
session.send(client.secret)
2384
except gnutls.Error as error:
2385
logger.warning("gnutls send failed",
2386
exc_info=error)
2387
return
2388
1613
2389
logger.info("Sending secret to %s", client.name)
1614
2390
# bump the timeout using extended_timeout
1615
client.checked_ok(client.extended_timeout)
2391
client.bump_timeout(client.extended_timeout)
1616
2392
if self.server.use_dbus:
1617
2393
# Emit D-Bus signal
1618
2394
client.GotSecret()
1619
2395
1620
2396
finally:
1621
2397
if approval_required:
1622
2398
client.approvals_pending -= 1
1623
2399
try:
1624
2400
session.bye()
1625
except gnutls.errors.GNUTLSError as error:
1626
logger.warning("GnuTLS bye failed")
1627
2401
except gnutls.Error as error:
2402
logger.warning("GnuTLS bye failed",
2403
exc_info=error)
2404
1628
2405
@staticmethod
1629
2406
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
2407
"Return the peer's certificate as a bytestring"
2408
try:
2409
cert_type = gnutls.certificate_type_get2(session._c_object,
2410
gnutls.CTYPE_PEERS)
2411
except AttributeError:
2412
cert_type = gnutls.certificate_type_get(session._c_object)
2413
if gnutls.has_rawpk:
2414
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2415
else:
2416
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2417
# If not a valid certificate type...
2418
if cert_type not in valid_cert_types:
2419
logger.info("Cert type %r not in %r", cert_type,
2420
valid_cert_types)
2421
# ...return invalid data
2422
return b""
1637
2423
list_size = ctypes.c_uint(1)
1638
cert_list = (gnutls.library.functions
1639
.gnutls_certificate_get_peers
2424
cert_list = (gnutls.certificate_get_peers
1640
2425
(session._c_object, ctypes.byref(list_size)))
1641
2426
if not bool(cert_list) and list_size.value != 0:
1642
raise gnutls.errors.GNUTLSError("error getting peer"
1643
" certificate")
2427
raise gnutls.Error("error getting peer certificate")
1644
2428
if list_size.value == 0:
1645
2429
return None
1646
2430
cert = cert_list[0]
1647
2431
return ctypes.string_at(cert.data, cert.size)
1648
2432
2433
@staticmethod
2434
def key_id(certificate):
2435
"Convert a certificate bytestring to a hexdigit key ID"
2436
# New GnuTLS "datum" with the public key
2437
datum = gnutls.datum_t(
2438
ctypes.cast(ctypes.c_char_p(certificate),
2439
ctypes.POINTER(ctypes.c_ubyte)),
2440
ctypes.c_uint(len(certificate)))
2441
# XXX all these need to be created in the gnutls "module"
2442
# New empty GnuTLS certificate
2443
pubkey = gnutls.pubkey_t()
2444
gnutls.pubkey_init(ctypes.byref(pubkey))
2445
# Import the raw public key into the certificate
2446
gnutls.pubkey_import(pubkey,
2447
ctypes.byref(datum),
2448
gnutls.X509_FMT_DER)
2449
# New buffer for the key ID
2450
buf = ctypes.create_string_buffer(32)
2451
buf_len = ctypes.c_size_t(len(buf))
2452
# Get the key ID from the raw public key into the buffer
2453
gnutls.pubkey_get_key_id(pubkey,
2454
gnutls.KEYID_USE_SHA256,
2455
ctypes.cast(ctypes.byref(buf),
2456
ctypes.POINTER(ctypes.c_ubyte)),
2457
ctypes.byref(buf_len))
2458
# Deinit the certificate
2459
gnutls.pubkey_deinit(pubkey)
2460
2461
# Convert the buffer to a Python bytestring
2462
key_id = ctypes.string_at(buf, buf_len.value)
2463
# Convert the bytestring to hexadecimal notation
2464
hex_key_id = binascii.hexlify(key_id).upper()
2465
return hex_key_id
2466
1649
2467
@staticmethod
1650
2468
def fingerprint(openpgp):
1651
2469
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1652
2470
# 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))))
2471
datum = gnutls.datum_t(
2472
ctypes.cast(ctypes.c_char_p(openpgp),
2473
ctypes.POINTER(ctypes.c_ubyte)),
2474
ctypes.c_uint(len(openpgp)))
1658
2475
# 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)))
2476
crt = gnutls.openpgp_crt_t()
2477
gnutls.openpgp_crt_init(ctypes.byref(crt))
1662
2478
# 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))
2479
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2480
gnutls.OPENPGP_FMT_RAW)
1667
2481
# Verify the self signature in the key
1668
2482
crtverify = ctypes.c_uint()
1669
(gnutls.library.functions
1670
.gnutls_openpgp_crt_verify_self(crt, 0,
1671
ctypes.byref(crtverify)))
2483
gnutls.openpgp_crt_verify_self(crt, 0,
2484
ctypes.byref(crtverify))
1672
2485
if crtverify.value != 0:
1673
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1674
raise (gnutls.errors.CertificateSecurityError
1675
("Verify failed"))
2486
gnutls.openpgp_crt_deinit(crt)
2487
raise gnutls.CertificateSecurityError(code
2488
=crtverify.value)
1676
2489
# New buffer for the fingerprint
1677
2490
buf = ctypes.create_string_buffer(20)
1678
2491
buf_len = ctypes.c_size_t()
1679
2492
# 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)))
2493
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2494
ctypes.byref(buf_len))
1683
2495
# Deinit the certificate
1684
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2496
gnutls.openpgp_crt_deinit(crt)
1685
2497
# Convert the buffer to a Python bytestring
1686
2498
fpr = ctypes.string_at(buf, buf_len.value)
1687
2499
# Convert the bytestring to hexadecimal notation
1689
2501
return hex_fpr
1690
2502
1691
2503
1692
class MultiprocessingMixIn(object):
2504
class MultiprocessingMixIn:
1693
2505
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2506
1694
2507
def sub_process_main(self, request, address):
1695
2508
try:
1696
2509
self.finish_request(request, address)
1697
2510
except Exception:
1698
2511
self.handle_error(request, address)
1699
2512
self.close_request(request)
1700
2513
1701
2514
def process_request(self, request, address):
1702
2515
"""Start a new process to process the request."""
1703
proc = multiprocessing.Process(target = self.sub_process_main,
1704
args = (request,
1705
address))
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
1706
2518
proc.start()
1707
2519
return proc
1708
2520
1709
2521
1710
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1711
2523
""" adds a pipe to the MixIn """
2524
1712
2525
def process_request(self, request, client_address):
1713
2526
"""Overrides and wraps the original process_request().
1714
2527
1715
2528
This function creates a new pipe in self.pipe
1716
2529
"""
1717
2530
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1718
2531
1719
2532
proc = MultiprocessingMixIn.process_request(self, request,
1720
2533
client_address)
1721
2534
self.child_pipe.close()
1722
2535
self.add_pipe(parent_pipe, proc)
1723
2536
1724
2537
def add_pipe(self, parent_pipe, proc):
1725
2538
"""Dummy function; override as necessary"""
1726
raise NotImplementedError
2539
raise NotImplementedError()
1727
2540
1728
2541
1729
2542
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1730
socketserver.TCPServer, object):
2543
socketserver.TCPServer):
1731
2544
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1732
2545
1733
2546
Attributes:
1734
2547
enabled: Boolean; whether this server is activated yet
1735
2548
interface: None or a network interface name (string)
1736
2549
use_ipv6: Boolean; to use IPv6 or not
1737
2550
"""
2551
1738
2552
def __init__(self, server_address, RequestHandlerClass,
1739
interface=None, use_ipv6=True):
2553
interface=None,
2554
use_ipv6=True,
2555
socketfd=None):
2556
"""If socketfd is set, use that file descriptor instead of
2557
creating a new one with socket.socket().
2558
"""
1740
2559
self.interface = interface
1741
2560
if use_ipv6:
1742
2561
self.address_family = socket.AF_INET6
2562
if socketfd is not None:
2563
# Save the file descriptor
2564
self.socketfd = socketfd
2565
# Save the original socket.socket() function
2566
self.socket_socket = socket.socket
2567
2568
# To implement --socket, we monkey patch socket.socket.
2569
#
2570
# (When socketserver.TCPServer is a new-style class, we
2571
# could make self.socket into a property instead of monkey
2572
# patching socket.socket.)
2573
#
2574
# Create a one-time-only replacement for socket.socket()
2575
@functools.wraps(socket.socket)
2576
def socket_wrapper(*args, **kwargs):
2577
# Restore original function so subsequent calls are
2578
# not affected.
2579
socket.socket = self.socket_socket
2580
del self.socket_socket
2581
# This time only, return a new socket object from the
2582
# saved file descriptor.
2583
return socket.fromfd(self.socketfd, *args, **kwargs)
2584
# Replace socket.socket() function with wrapper
2585
socket.socket = socket_wrapper
2586
# The socketserver.TCPServer.__init__ will call
2587
# socket.socket(), which might be our replacement,
2588
# socket_wrapper(), if socketfd was set.
1743
2589
socketserver.TCPServer.__init__(self, server_address,
1744
2590
RequestHandlerClass)
2591
1745
2592
def server_bind(self):
1746
2593
"""This overrides the normal server_bind() function
1747
2594
to bind to an interface if one was specified, and also NOT to
1748
2595
bind to an address or port if they were not specified."""
2596
global SO_BINDTODEVICE
1749
2597
if self.interface is not None:
1750
2598
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
2599
# Fall back to a hard-coded value which seems to be
2600
# common enough.
2601
logger.warning("SO_BINDTODEVICE not found, trying 25")
2602
SO_BINDTODEVICE = 25
2603
try:
2604
self.socket.setsockopt(
2605
socket.SOL_SOCKET, SO_BINDTODEVICE,
2606
(self.interface + "\0").encode("utf-8"))
2607
except socket.error as error:
2608
if error.errno == errno.EPERM:
2609
logger.error("No permission to bind to"
2610
" interface %s", self.interface)
2611
elif error.errno == errno.ENOPROTOOPT:
2612
logger.error("SO_BINDTODEVICE not available;"
2613
" cannot bind to interface %s",
2614
self.interface)
2615
elif error.errno == errno.ENODEV:
2616
logger.error("Interface %s does not exist,"
2617
" cannot bind", self.interface)
2618
else:
2619
raise
1771
2620
# Only bind(2) the socket if we really need to.
1772
2621
if self.server_address[0] or self.server_address[1]:
2622
if self.server_address[1]:
2623
self.allow_reuse_address = True
1773
2624
if not self.server_address[0]:
1774
2625
if self.address_family == socket.AF_INET6:
1775
any_address = "::" # in6addr_any
2626
any_address = "::" # in6addr_any
1776
2627
else:
1777
any_address = socket.INADDR_ANY
2628
any_address = "0.0.0.0" # INADDR_ANY
1778
2629
self.server_address = (any_address,
1779
2630
self.server_address[1])
1780
2631
elif not self.server_address[1]:
1781
self.server_address = (self.server_address[0],
1782
0)
2632
self.server_address = (self.server_address[0], 0)
1783
2633
# if self.interface:
1784
2634
# self.server_address = (self.server_address[0],
1785
2635
# 0, # port
1791
2641
1792
2642
class MandosServer(IPv6_TCPServer):
1793
2643
"""Mandos server.
1794
2644
1795
2645
Attributes:
1796
2646
clients: set of Client objects
1797
2647
gnutls_priority GnuTLS priority string
1798
2648
use_dbus: Boolean; to emit D-Bus signals or not
1799
1800
Assumes a gobject.MainLoop event loop.
2649
2650
Assumes a GLib.MainLoop event loop.
1801
2651
"""
2652
1802
2653
def __init__(self, server_address, RequestHandlerClass,
1803
interface=None, use_ipv6=True, clients=None,
1804
gnutls_priority=None, use_dbus=True):
2654
interface=None,
2655
use_ipv6=True,
2656
clients=None,
2657
gnutls_priority=None,
2658
use_dbus=True,
2659
socketfd=None):
1805
2660
self.enabled = False
1806
2661
self.clients = clients
1807
2662
if self.clients is None:
1810
2665
self.gnutls_priority = gnutls_priority
1811
2666
IPv6_TCPServer.__init__(self, server_address,
1812
2667
RequestHandlerClass,
1813
interface = interface,
1814
use_ipv6 = use_ipv6)
2668
interface=interface,
2669
use_ipv6=use_ipv6,
2670
socketfd=socketfd)
2671
1815
2672
def server_activate(self):
1816
2673
if self.enabled:
1817
2674
return socketserver.TCPServer.server_activate(self)
1818
2675
1819
2676
def enable(self):
1820
2677
self.enabled = True
1821
2678
1822
2679
def add_pipe(self, parent_pipe, proc):
1823
2680
# 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)
2681
GLib.io_add_watch(
2682
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2683
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2684
functools.partial(self.handle_ipc,
2685
parent_pipe=parent_pipe,
2686
proc=proc))
2687
2688
def handle_ipc(self, source, condition,
2689
parent_pipe=None,
2690
proc=None,
2691
client_object=None):
1847
2692
# error, or the other end of multiprocessing.Pipe has closed
1848
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2693
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1849
2694
# Wait for other process to exit
1850
2695
proc.join()
1851
2696
return False
1852
2697
1853
2698
# Read a request from the child
1854
2699
request = parent_pipe.recv()
1855
2700
command = request[0]
1856
2701
1857
2702
if command == 'init':
1858
fpr = request[1]
1859
address = request[2]
1860
1861
for c in self.clients.itervalues():
1862
if c.fingerprint == fpr:
2703
key_id = request[1].decode("ascii")
2704
fpr = request[2].decode("ascii")
2705
address = request[3]
2706
2707
for c in self.clients.values():
2708
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2709
continue
2710
if key_id and c.key_id == key_id:
2711
client = c
2712
break
2713
if fpr and c.fingerprint == fpr:
1863
2714
client = c
1864
2715
break
1865
2716
else:
1866
logger.info("Client not found for fingerprint: %s, ad"
1867
"dress: %s", fpr, address)
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
1868
2719
if self.use_dbus:
1869
2720
# Emit D-Bus signal
1870
mandos_dbus_service.ClientNotFound(fpr,
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
1871
2722
address[0])
1872
2723
parent_pipe.send(False)
1873
2724
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))
2725
2726
GLib.io_add_watch(
2727
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2728
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2729
functools.partial(self.handle_ipc,
2730
parent_pipe=parent_pipe,
2731
proc=proc,
2732
client_object=client))
1883
2733
parent_pipe.send(True)
1884
2734
# remove the old hook in favor of the new above hook on
1885
2735
# same fileno
1888
2738
funcname = request[1]
1889
2739
args = request[2]
1890
2740
kwargs = request[3]
1891
2741
1892
2742
parent_pipe.send(('data', getattr(client_object,
1893
2743
funcname)(*args,
1894
**kwargs)))
1895
2744
**kwargs)))
2745
1896
2746
if command == 'getattr':
1897
2747
attrname = request[1]
1898
if callable(client_object.__getattribute__(attrname)):
1899
parent_pipe.send(('function',))
2748
if isinstance(client_object.__getattribute__(attrname),
2749
collections.Callable):
2750
parent_pipe.send(('function', ))
1900
2751
else:
1901
parent_pipe.send(('data', client_object
1902
.__getattribute__(attrname)))
1903
2752
parent_pipe.send((
2753
'data', client_object.__getattribute__(attrname)))
2754
1904
2755
if command == 'setattr':
1905
2756
attrname = request[1]
1906
2757
value = request[2]
1907
2758
setattr(client_object, attrname, value)
1908
2759
1909
2760
return True
1910
2761
1911
2762
2763
def rfc3339_duration_to_delta(duration):
2764
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2765
2766
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2767
True
2768
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2771
True
2772
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2773
True
2774
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2775
True
2776
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2777
True
2778
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2779
True
2780
"""
2781
2782
# Parsing an RFC 3339 duration with regular expressions is not
2783
# possible - there would have to be multiple places for the same
2784
# values, like seconds. The current code, while more esoteric, is
2785
# cleaner without depending on a parsing library. If Python had a
2786
# built-in library for parsing we would use it, but we'd like to
2787
# avoid excessive use of external libraries.
2788
2789
# New type for defining tokens, syntax, and semantics all-in-one
2790
Token = collections.namedtuple("Token", (
2791
"regexp", # To match token; if "value" is not None, must have
2792
# a "group" containing digits
2793
"value", # datetime.timedelta or None
2794
"followers")) # Tokens valid after this token
2795
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2796
# the "duration" ABNF definition in RFC 3339, Appendix A.
2797
token_end = Token(re.compile(r"$"), None, frozenset())
2798
token_second = Token(re.compile(r"(\d+)S"),
2799
datetime.timedelta(seconds=1),
2800
frozenset((token_end, )))
2801
token_minute = Token(re.compile(r"(\d+)M"),
2802
datetime.timedelta(minutes=1),
2803
frozenset((token_second, token_end)))
2804
token_hour = Token(re.compile(r"(\d+)H"),
2805
datetime.timedelta(hours=1),
2806
frozenset((token_minute, token_end)))
2807
token_time = Token(re.compile(r"T"),
2808
None,
2809
frozenset((token_hour, token_minute,
2810
token_second)))
2811
token_day = Token(re.compile(r"(\d+)D"),
2812
datetime.timedelta(days=1),
2813
frozenset((token_time, token_end)))
2814
token_month = Token(re.compile(r"(\d+)M"),
2815
datetime.timedelta(weeks=4),
2816
frozenset((token_day, token_end)))
2817
token_year = Token(re.compile(r"(\d+)Y"),
2818
datetime.timedelta(weeks=52),
2819
frozenset((token_month, token_end)))
2820
token_week = Token(re.compile(r"(\d+)W"),
2821
datetime.timedelta(weeks=1),
2822
frozenset((token_end, )))
2823
token_duration = Token(re.compile(r"P"), None,
2824
frozenset((token_year, token_month,
2825
token_day, token_time,
2826
token_week)))
2827
# Define starting values:
2828
# Value so far
2829
value = datetime.timedelta()
2830
found_token = None
2831
# Following valid tokens
2832
followers = frozenset((token_duration, ))
2833
# String left to parse
2834
s = duration
2835
# Loop until end token is found
2836
while found_token is not token_end:
2837
# Search for any currently valid tokens
2838
for token in followers:
2839
match = token.regexp.match(s)
2840
if match is not None:
2841
# Token found
2842
if token.value is not None:
2843
# Value found, parse digits
2844
factor = int(match.group(1), 10)
2845
# Add to value so far
2846
value += factor * token.value
2847
# Strip token from string
2848
s = token.regexp.sub("", s, 1)
2849
# Go to found token
2850
found_token = token
2851
# Set valid next tokens
2852
followers = found_token.followers
2853
break
2854
else:
2855
# No currently valid tokens were found
2856
raise ValueError("Invalid RFC 3339 duration: {!r}"
2857
.format(duration))
2858
# End token found
2859
return value
2860
2861
1912
2862
def string_to_delta(interval):
1913
2863
"""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)
2864
2865
>>> string_to_delta('7d') == datetime.timedelta(7)
2866
True
2867
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2868
True
2869
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2870
True
2871
>>> string_to_delta('24h') == datetime.timedelta(1)
2872
True
2873
>>> string_to_delta('1w') == datetime.timedelta(7)
2874
True
2875
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2876
True
1927
2877
"""
2878
2879
try:
2880
return rfc3339_duration_to_delta(interval)
2881
except ValueError:
2882
pass
2883
1928
2884
timevalue = datetime.timedelta(0)
1929
2885
for s in interval.split():
1930
2886
try:
1931
suffix = unicode(s[-1])
2887
suffix = s[-1]
1932
2888
value = int(s[:-1])
1933
2889
if suffix == "d":
1934
2890
delta = datetime.timedelta(value)
1941
2897
elif suffix == "w":
1942
2898
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1943
2899
else:
1944
raise ValueError("Unknown suffix %r" % suffix)
1945
except (ValueError, IndexError) as e:
2900
raise ValueError("Unknown suffix {!r}".format(suffix))
2901
except IndexError as e:
1946
2902
raise ValueError(*(e.args))
1947
2903
timevalue += delta
1948
2904
return timevalue
1949
2905
1950
2906
1951
def daemon(nochdir = False, noclose = False):
2907
def daemon(nochdir=False, noclose=False):
1952
2908
"""See daemon(3). Standard BSD Unix function.
1953
2909
1954
2910
This should really exist as os.daemon, but it doesn't (yet)."""
1955
2911
if os.fork():
1956
2912
sys.exit()
1961
2917
sys.exit()
1962
2918
if not noclose:
1963
2919
# Close all standard open file descriptors
1964
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2920
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1965
2921
if not stat.S_ISCHR(os.fstat(null).st_mode):
1966
2922
raise OSError(errno.ENODEV,
1967
"%s not a character device"
1968
% os.path.devnull)
2923
"{} not a character device"
2924
.format(os.devnull))
1969
2925
os.dup2(null, sys.stdin.fileno())
1970
2926
os.dup2(null, sys.stdout.fileno())
1971
2927
os.dup2(null, sys.stderr.fileno())
1974
2930
1975
2931
1976
2932
def main():
1977
2933
1978
2934
##################################################################
1979
2935
# Parsing of options, both command line and config file
1980
2936
1981
2937
parser = argparse.ArgumentParser()
1982
2938
parser.add_argument("-v", "--version", action="version",
1983
version = "%%(prog)s %s" % version,
2939
version="%(prog)s {}".format(version),
1984
2940
help="show version number and exit")
1985
2941
parser.add_argument("-i", "--interface", metavar="IF",
1986
2942
help="Bind to interface IF")
1992
2948
help="Run self-test")
1993
2949
parser.add_argument("--debug", action="store_true",
1994
2950
help="Debug mode; run in foreground and log"
1995
" to terminal")
2951
" to terminal", default=None)
1996
2952
parser.add_argument("--debuglevel", metavar="LEVEL",
1997
2953
help="Debug level for stdout output")
1998
2954
parser.add_argument("--priority", help="GnuTLS"
2005
2961
" files")
2006
2962
parser.add_argument("--no-dbus", action="store_false",
2007
2963
dest="use_dbus", help="Do not provide D-Bus"
2008
" system bus interface")
2964
" system bus interface", default=None)
2009
2965
parser.add_argument("--no-ipv6", action="store_false",
2010
dest="use_ipv6", help="Do not use IPv6")
2966
dest="use_ipv6", help="Do not use IPv6",
2967
default=None)
2011
2968
parser.add_argument("--no-restore", action="store_false",
2012
2969
dest="restore", help="Do not restore stored"
2013
" state")
2970
" state", default=None)
2971
parser.add_argument("--socket", type=int,
2972
help="Specify a file descriptor to a network"
2973
" socket to use instead of creating one")
2014
2974
parser.add_argument("--statedir", metavar="DIR",
2015
2975
help="Directory to save/restore state in")
2016
2976
parser.add_argument("--foreground", action="store_true",
2977
help="Run in foreground", default=None)
2978
parser.add_argument("--no-zeroconf", action="store_false",
2979
dest="zeroconf", help="Do not use Zeroconf",
2980
default=None)
2981
2017
2982
options = parser.parse_args()
2018
2019
if options.check:
2020
import doctest
2021
doctest.testmod()
2022
sys.exit()
2023
2983
2024
2984
# 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
2985
if gnutls.has_rawpk:
2986
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2987
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2988
else:
2989
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2990
":+SIGN-DSA-SHA256")
2991
server_defaults = {"interface": "",
2992
"address": "",
2993
"port": "",
2994
"debug": "False",
2995
"priority": priority,
2996
"servicename": "Mandos",
2997
"use_dbus": "True",
2998
"use_ipv6": "True",
2999
"debuglevel": "",
3000
"restore": "True",
3001
"socket": "",
3002
"statedir": "/var/lib/mandos",
3003
"foreground": "False",
3004
"zeroconf": "True",
3005
}
3006
del priority
3007
2039
3008
# Parse config file for server-global settings
2040
server_config = configparser.SafeConfigParser(server_defaults)
3009
server_config = configparser.ConfigParser(server_defaults)
2041
3010
del server_defaults
2042
server_config.read(os.path.join(options.configdir,
2043
"mandos.conf"))
2044
# Convert the SafeConfigParser object to a dict
3011
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3012
# Convert the ConfigParser object to a dict
2045
3013
server_settings = server_config.defaults()
2046
3014
# Use the appropriate methods on the non-string config options
2047
for option in ("debug", "use_dbus", "use_ipv6"):
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
2048
3017
server_settings[option] = server_config.getboolean("DEFAULT",
2049
3018
option)
2050
3019
if server_settings["port"]:
2051
3020
server_settings["port"] = server_config.getint("DEFAULT",
2052
3021
"port")
3022
if server_settings["socket"]:
3023
server_settings["socket"] = server_config.getint("DEFAULT",
3024
"socket")
3025
# Later, stdin will, and stdout and stderr might, be dup'ed
3026
# over with an opened os.devnull. But we don't want this to
3027
# happen with a supplied network socket.
3028
if 0 <= server_settings["socket"] <= 2:
3029
server_settings["socket"] = os.dup(server_settings
3030
["socket"])
2053
3031
del server_config
2054
3032
2055
3033
# Override the settings from the config file with command line
2056
3034
# options, if set.
2057
3035
for option in ("interface", "address", "port", "debug",
2058
"priority", "servicename", "configdir",
2059
"use_dbus", "use_ipv6", "debuglevel", "restore",
2060
"statedir"):
3036
"priority", "servicename", "configdir", "use_dbus",
3037
"use_ipv6", "debuglevel", "restore", "statedir",
3038
"socket", "foreground", "zeroconf"):
2061
3039
value = getattr(options, option)
2062
3040
if value is not None:
2063
3041
server_settings[option] = value
2064
3042
del options
2065
3043
# Force all strings to be unicode
2066
3044
for option in server_settings.keys():
2067
if type(server_settings[option]) is str:
2068
server_settings[option] = unicode(server_settings[option])
3045
if isinstance(server_settings[option], bytes):
3046
server_settings[option] = (server_settings[option]
3047
.decode("utf-8"))
3048
# Force all boolean options to be boolean
3049
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3050
"foreground", "zeroconf"):
3051
server_settings[option] = bool(server_settings[option])
3052
# Debug implies foreground
3053
if server_settings["debug"]:
3054
server_settings["foreground"] = True
2069
3055
# Now we have our good server settings in "server_settings"
2070
3056
2071
3057
##################################################################
2072
3058
3059
if (not server_settings["zeroconf"]
3060
and not (server_settings["port"]
3061
or server_settings["socket"] != "")):
3062
parser.error("Needs port or socket to work without Zeroconf")
3063
2073
3064
# For convenience
2074
3065
debug = server_settings["debug"]
2075
3066
debuglevel = server_settings["debuglevel"]
2077
3068
use_ipv6 = server_settings["use_ipv6"]
2078
3069
stored_state_path = os.path.join(server_settings["statedir"],
2079
3070
stored_state_file)
2080
3071
foreground = server_settings["foreground"]
3072
zeroconf = server_settings["zeroconf"]
3073
2081
3074
if debug:
2082
3075
initlogger(debug, logging.DEBUG)
2083
3076
else:
2086
3079
else:
2087
3080
level = getattr(logging, debuglevel.upper())
2088
3081
initlogger(debug, level)
2089
3082
2090
3083
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
3084
syslogger.setFormatter(
3085
logging.Formatter('Mandos ({}) [%(process)d]:'
3086
' %(levelname)s: %(message)s'.format(
3087
server_settings["servicename"])))
3088
2096
3089
# Parse config file with clients
2097
client_config = configparser.SafeConfigParser(Client.client_defaults)
3090
client_config = configparser.ConfigParser(Client.client_defaults)
2098
3091
client_config.read(os.path.join(server_settings["configdir"],
2099
3092
"clients.conf"))
2100
3093
2101
3094
global mandos_dbus_service
2102
3095
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
3096
3097
socketfd = None
3098
if server_settings["socket"] != "":
3099
socketfd = server_settings["socket"]
3100
tcp_server = MandosServer(
3101
(server_settings["address"], server_settings["port"]),
3102
ClientHandler,
3103
interface=(server_settings["interface"] or None),
3104
use_ipv6=use_ipv6,
3105
gnutls_priority=server_settings["priority"],
3106
use_dbus=use_dbus,
3107
socketfd=socketfd)
3108
if not foreground:
3109
pidfilename = "/run/mandos.pid"
3110
if not os.path.isdir("/run/."):
3111
pidfilename = "/var/run/mandos.pid"
3112
pidfile = None
3113
try:
3114
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3115
except IOError as e:
3116
logger.error("Could not open file %r", pidfilename,
3117
exc_info=e)
3118
3119
for name, group in (("_mandos", "_mandos"),
3120
("mandos", "mandos"),
3121
("nobody", "nogroup")):
3122
try:
3123
uid = pwd.getpwnam(name).pw_uid
3124
gid = pwd.getpwnam(group).pw_gid
3125
break
2127
3126
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
3127
continue
3128
else:
3129
uid = 65534
3130
gid = 65534
2134
3131
try:
2135
3132
os.setgid(gid)
2136
3133
os.setuid(uid)
3134
if debug:
3135
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3136
gid))
2137
3137
except OSError as error:
2138
if error[0] != errno.EPERM:
2139
raise error
2140
3138
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3139
.format(uid, gid, os.strerror(error.errno)))
3140
if error.errno != errno.EPERM:
3141
raise
3142
2141
3143
if debug:
2142
3144
# Enable all possible GnuTLS debugging
2143
3145
2144
3146
# "Use a log level over 10 to enable all debugging options."
2145
3147
# - GnuTLS manual
2146
gnutls.library.functions.gnutls_global_set_log_level(11)
2147
2148
@gnutls.library.types.gnutls_log_func
3148
gnutls.global_set_log_level(11)
3149
3150
@gnutls.log_func
2149
3151
def debug_gnutls(level, string):
2150
3152
logger.debug("GnuTLS: %s", string[:-1])
2151
2152
(gnutls.library.functions
2153
.gnutls_global_set_log_function(debug_gnutls))
2154
3153
3154
gnutls.global_set_log_function(debug_gnutls)
3155
2155
3156
# Redirect stdin so all checkers get /dev/null
2156
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3157
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2157
3158
os.dup2(null, sys.stdin.fileno())
2158
3159
if null > 2:
2159
3160
os.close(null)
2160
3161
2161
3162
# Need to fork before connecting to D-Bus
2162
if not debug:
3163
if not foreground:
2163
3164
# Close all input and output, do double fork, etc.
2164
3165
daemon()
2165
2166
gobject.threads_init()
2167
3166
3167
if gi.version_info < (3, 10, 2):
3168
# multiprocessing will use threads, so before we use GLib we
3169
# need to inform GLib that threads will be used.
3170
GLib.threads_init()
3171
2168
3172
global main_loop
2169
3173
# From the Avahi example code
2170
DBusGMainLoop(set_as_default=True )
2171
main_loop = gobject.MainLoop()
3174
DBusGMainLoop(set_as_default=True)
3175
main_loop = GLib.MainLoop()
2172
3176
bus = dbus.SystemBus()
2173
3177
# End of Avahi example code
2174
3178
if use_dbus:
2175
3179
try:
2176
3180
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")
3181
bus,
3182
do_not_queue=True)
3183
old_bus_name = dbus.service.BusName(
3184
"se.bsnet.fukt.Mandos", bus,
3185
do_not_queue=True)
3186
except dbus.exceptions.DBusException as e:
3187
logger.error("Disabling D-Bus:", exc_info=e)
2183
3188
use_dbus = False
2184
3189
server_settings["use_dbus"] = False
2185
3190
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
3191
if zeroconf:
3192
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3193
service = AvahiServiceToSyslog(
3194
name=server_settings["servicename"],
3195
servicetype="_mandos._tcp",
3196
protocol=protocol,
3197
bus=bus)
3198
if server_settings["interface"]:
3199
service.interface = if_nametoindex(
3200
server_settings["interface"].encode("utf-8"))
3201
2195
3202
global multiprocessing_manager
2196
3203
multiprocessing_manager = multiprocessing.Manager()
2197
3204
2198
3205
client_class = Client
2199
3206
if use_dbus:
2200
client_class = functools.partial(ClientDBusTransitional,
2201
bus = bus)
2202
3207
client_class = functools.partial(ClientDBus, bus=bus)
3208
2203
3209
client_settings = Client.config_parser(client_config)
2204
3210
old_client_settings = {}
2205
3211
clients_data = {}
2206
3212
3213
# This is used to redirect stdout and stderr for checker processes
3214
global wnull
3215
wnull = open(os.devnull, "w") # A writable /dev/null
3216
# Only used if server is running in foreground but not in debug
3217
# mode
3218
if debug or not foreground:
3219
wnull.close()
3220
2207
3221
# Get client data and settings from last running state.
2208
3222
if server_settings["restore"]:
2209
3223
try:
2210
3224
with open(stored_state_path, "rb") as stored_state:
2211
clients_data, old_client_settings = (pickle.load
2212
(stored_state))
3225
if sys.version_info.major == 2:
3226
clients_data, old_client_settings = pickle.load(
3227
stored_state)
3228
else:
3229
bytes_clients_data, bytes_old_client_settings = (
3230
pickle.load(stored_state, encoding="bytes"))
3231
# Fix bytes to strings
3232
# clients_data
3233
# .keys()
3234
clients_data = {(key.decode("utf-8")
3235
if isinstance(key, bytes)
3236
else key): value
3237
for key, value in
3238
bytes_clients_data.items()}
3239
del bytes_clients_data
3240
for key in clients_data:
3241
value = {(k.decode("utf-8")
3242
if isinstance(k, bytes) else k): v
3243
for k, v in
3244
clients_data[key].items()}
3245
clients_data[key] = value
3246
# .client_structure
3247
value["client_structure"] = [
3248
(s.decode("utf-8")
3249
if isinstance(s, bytes)
3250
else s) for s in
3251
value["client_structure"]]
3252
# .name, .host, and .checker_command
3253
for k in ("name", "host", "checker_command"):
3254
if isinstance(value[k], bytes):
3255
value[k] = value[k].decode("utf-8")
3256
if "key_id" not in value:
3257
value["key_id"] = ""
3258
elif "fingerprint" not in value:
3259
value["fingerprint"] = ""
3260
# old_client_settings
3261
# .keys()
3262
old_client_settings = {
3263
(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_old_client_settings.items()}
3268
del bytes_old_client_settings
3269
# .host and .checker_command
3270
for value in old_client_settings.values():
3271
for attribute in ("host", "checker_command"):
3272
if isinstance(value[attribute], bytes):
3273
value[attribute] = (value[attribute]
3274
.decode("utf-8"))
2213
3275
os.remove(stored_state_path)
2214
3276
except IOError as e:
2215
logger.warning("Could not load persistent state: {0}"
2216
.format(e))
2217
if e.errno != errno.ENOENT:
3277
if e.errno == errno.ENOENT:
3278
logger.warning("Could not load persistent state:"
3279
" {}".format(os.strerror(e.errno)))
3280
else:
3281
logger.critical("Could not load persistent state:",
3282
exc_info=e)
2218
3283
raise
2219
3284
except EOFError as e:
2220
3285
logger.warning("Could not load persistent state: "
2221
"EOFError: {0}".format(e))
2222
3286
"EOFError:",
3287
exc_info=e)
3288
2223
3289
with PGPEngine() as pgp:
2224
for client_name, client in clients_data.iteritems():
3290
for client_name, client in clients_data.items():
3291
# Skip removed clients
3292
if client_name not in client_settings:
3293
continue
3294
2225
3295
# Decide which value to use after restoring saved state.
2226
3296
# We have three different values: Old config file,
2227
3297
# new config file, and saved state.
2232
3302
# For each value in new config, check if it
2233
3303
# differs from the old config value (Except for
2234
3304
# the "secret" attribute)
2235
if (name != "secret" and
2236
value != old_client_settings[client_name]
2237
[name]):
3305
if (name != "secret"
3306
and (value !=
3307
old_client_settings[client_name][name])):
2238
3308
client[name] = value
2239
3309
except KeyError:
2240
3310
pass
2241
3311
2242
3312
# 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.
3313
# enabled if its last checker was successful. A Client
3314
# whose checker succeeded before we stored its state is
3315
# assumed to have successfully run all checkers during
3316
# downtime.
2246
3317
if client["enabled"]:
2247
3318
if datetime.datetime.utcnow() >= client["expires"]:
2248
3319
if not client["last_checked_ok"]:
2249
3320
logger.warning(
2250
"disabling client {0} - Client never "
2251
"performed a successfull checker"
2252
.format(client["name"]))
3321
"disabling client {} - Client never "
3322
"performed a successful checker".format(
3323
client_name))
2253
3324
client["enabled"] = False
2254
3325
elif client["last_checker_status"] != 0:
2255
3326
logger.warning(
2256
"disabling client {0} - Client "
2257
"last checker failed with error code {1}"
2258
.format(client["name"],
2259
client["last_checker_status"]))
3327
"disabling client {} - Client last"
3328
" checker failed with error code"
3329
" {}".format(
3330
client_name,
3331
client["last_checker_status"]))
2260
3332
client["enabled"] = False
2261
3333
else:
2262
client["expires"] = (datetime.datetime
2263
.utcnow()
2264
+ client["timeout"])
2265
3334
client["expires"] = (
3335
datetime.datetime.utcnow()
3336
+ client["timeout"])
3337
logger.debug("Last checker succeeded,"
3338
" keeping {} enabled".format(
3339
client_name))
2266
3340
try:
2267
client["secret"] = (
2268
pgp.decrypt(client["encrypted_secret"],
2269
client_settings[client_name]
2270
["secret"]))
3341
client["secret"] = pgp.decrypt(
3342
client["encrypted_secret"],
3343
client_settings[client_name]["secret"])
2271
3344
except PGPError:
2272
3345
# 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"])
3346
logger.debug("Failed to decrypt {} old secret".format(
3347
client_name))
3348
client["secret"] = (client_settings[client_name]
3349
["secret"])
2277
3350
2278
2279
3351
# Add/remove clients based on new changes made to config
2280
for client_name in set(old_client_settings) - set(client_settings):
3352
for client_name in (set(old_client_settings)
3353
- set(client_settings)):
2281
3354
del clients_data[client_name]
2282
for client_name in set(client_settings) - set(old_client_settings):
3355
for client_name in (set(client_settings)
3356
- set(old_client_settings)):
2283
3357
clients_data[client_name] = client_settings[client_name]
2284
3358
2285
# Create clients all clients
2286
for client_name, client in clients_data.iteritems():
3359
# Create all client objects
3360
for client_name, client in clients_data.items():
2287
3361
tcp_server.clients[client_name] = client_class(
2288
name = client_name, settings = client)
2289
3362
name=client_name,
3363
settings=client,
3364
server_settings=server_settings)
3365
2290
3366
if not tcp_server.clients:
2291
3367
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
3368
3369
if not foreground:
3370
if pidfile is not None:
3371
pid = os.getpid()
3372
try:
3373
with pidfile:
3374
print(pid, file=pidfile)
3375
except IOError:
3376
logger.error("Could not write to file %r with PID %d",
3377
pidfilename, pid)
3378
del pidfile
2305
3379
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
3380
3381
for termsig in (signal.SIGHUP, signal.SIGTERM):
3382
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3383
lambda: main_loop.quit() and False)
3384
2311
3385
if use_dbus:
2312
class MandosDBusService(dbus.service.Object):
3386
3387
@alternate_dbus_interfaces(
3388
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3389
class MandosDBusService(DBusObjectWithObjectManager):
2313
3390
"""A D-Bus proxy object"""
3391
2314
3392
def __init__(self):
2315
3393
dbus.service.Object.__init__(self, bus, "/")
3394
2316
3395
_interface = "se.recompile.Mandos"
2317
3396
2318
3397
@dbus.service.signal(_interface, signature="o")
2319
3398
def ClientAdded(self, objpath):
2320
3399
"D-Bus signal"
2321
3400
pass
2322
3401
2323
3402
@dbus.service.signal(_interface, signature="ss")
2324
def ClientNotFound(self, fingerprint, address):
3403
def ClientNotFound(self, key_id, address):
2325
3404
"D-Bus signal"
2326
3405
pass
2327
3406
3407
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3408
"true"})
2328
3409
@dbus.service.signal(_interface, signature="os")
2329
3410
def ClientRemoved(self, objpath, name):
2330
3411
"D-Bus signal"
2331
3412
pass
2332
3413
3414
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3415
"true"})
2333
3416
@dbus.service.method(_interface, out_signature="ao")
2334
3417
def GetAllClients(self):
2335
3418
"D-Bus method"
2336
return dbus.Array(c.dbus_object_path
2337
for c in
2338
tcp_server.clients.itervalues())
2339
3419
return dbus.Array(c.dbus_object_path for c in
3420
tcp_server.clients.values())
3421
3422
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3423
"true"})
2340
3424
@dbus.service.method(_interface,
2341
3425
out_signature="a{oa{sv}}")
2342
3426
def GetAllClientsWithProperties(self):
2343
3427
"D-Bus method"
2344
3428
return dbus.Dictionary(
2345
((c.dbus_object_path, c.GetAll(""))
2346
for c in tcp_server.clients.itervalues()),
3429
{c.dbus_object_path: c.GetAll(
3430
"se.recompile.Mandos.Client")
3431
for c in tcp_server.clients.values()},
2347
3432
signature="oa{sv}")
2348
3433
2349
3434
@dbus.service.method(_interface, in_signature="o")
2350
3435
def RemoveClient(self, object_path):
2351
3436
"D-Bus method"
2352
for c in tcp_server.clients.itervalues():
3437
for c in tcp_server.clients.values():
2353
3438
if c.dbus_object_path == object_path:
2354
3439
del tcp_server.clients[c.name]
2355
3440
c.remove_from_connection()
2356
# Don't signal anything except ClientRemoved
3441
# Don't signal the disabling
2357
3442
c.disable(quiet=True)
2358
# Emit D-Bus signal
2359
self.ClientRemoved(object_path, c.name)
3443
# Emit D-Bus signal for removal
3444
self.client_removed_signal(c)
2360
3445
return
2361
3446
raise KeyError(object_path)
2362
3447
2363
3448
del _interface
2364
2365
class MandosDBusServiceTransitional(MandosDBusService):
2366
__metaclass__ = AlternateDBusNamesMetaclass
2367
mandos_dbus_service = MandosDBusServiceTransitional()
2368
3449
3450
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3451
out_signature="a{oa{sa{sv}}}")
3452
def GetManagedObjects(self):
3453
"""D-Bus method"""
3454
return dbus.Dictionary(
3455
{client.dbus_object_path:
3456
dbus.Dictionary(
3457
{interface: client.GetAll(interface)
3458
for interface in
3459
client._get_all_interface_names()})
3460
for client in tcp_server.clients.values()})
3461
3462
def client_added_signal(self, client):
3463
"""Send the new standard signal and the old signal"""
3464
if use_dbus:
3465
# New standard signal
3466
self.InterfacesAdded(
3467
client.dbus_object_path,
3468
dbus.Dictionary(
3469
{interface: client.GetAll(interface)
3470
for interface in
3471
client._get_all_interface_names()}))
3472
# Old signal
3473
self.ClientAdded(client.dbus_object_path)
3474
3475
def client_removed_signal(self, client):
3476
"""Send the new standard signal and the old signal"""
3477
if use_dbus:
3478
# New standard signal
3479
self.InterfacesRemoved(
3480
client.dbus_object_path,
3481
client._get_all_interface_names())
3482
# Old signal
3483
self.ClientRemoved(client.dbus_object_path,
3484
client.name)
3485
3486
mandos_dbus_service = MandosDBusService()
3487
3488
# Save modules to variables to exempt the modules from being
3489
# unloaded before the function registered with atexit() is run.
3490
mp = multiprocessing
3491
wn = wnull
3492
2369
3493
def cleanup():
2370
3494
"Cleanup function; run on exit"
2371
service.cleanup()
2372
2373
multiprocessing.active_children()
3495
if zeroconf:
3496
service.cleanup()
3497
3498
mp.active_children()
3499
wn.close()
2374
3500
if not (tcp_server.clients or client_settings):
2375
3501
return
2376
3502
2377
3503
# Store client before exiting. Secrets are encrypted with key
2378
3504
# based on what config file has. If config file is
2379
3505
# removed/edited, old secret will thus be unrecovable.
2380
3506
clients = {}
2381
3507
with PGPEngine() as pgp:
2382
for client in tcp_server.clients.itervalues():
3508
for client in tcp_server.clients.values():
2383
3509
key = client_settings[client.name]["secret"]
2384
3510
client.encrypted_secret = pgp.encrypt(client.secret,
2385
3511
key)
2386
3512
client_dict = {}
2387
3513
2388
3514
# A list of attributes that can not be pickled
2389
3515
# + secret.
2390
exclude = set(("bus", "changedstate", "secret",
2391
"checker"))
2392
for name, typ in (inspect.getmembers
2393
(dbus.service.Object)):
3516
exclude = {"bus", "changedstate", "secret",
3517
"checker", "server_settings"}
3518
for name, typ in inspect.getmembers(dbus.service
3519
.Object):
2394
3520
exclude.add(name)
2395
3521
2396
3522
client_dict["encrypted_secret"] = (client
2397
3523
.encrypted_secret)
2398
3524
for attr in client.client_structure:
2399
3525
if attr not in exclude:
2400
3526
client_dict[attr] = getattr(client, attr)
2401
3527
2402
3528
clients[client.name] = client_dict
2403
3529
del client_settings[client.name]["secret"]
2404
3530
2405
3531
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)
3532
with tempfile.NamedTemporaryFile(
3533
mode='wb',
3534
suffix=".pickle",
3535
prefix='clients-',
3536
dir=os.path.dirname(stored_state_path),
3537
delete=False) as stored_state:
3538
pickle.dump((clients, client_settings), stored_state,
3539
protocol=2)
3540
tempname = stored_state.name
2412
3541
os.rename(tempname, stored_state_path)
2413
3542
except (IOError, OSError) as e:
2414
logger.warning("Could not save persistent state: {0}"
2415
.format(e))
2416
3543
if not debug:
2417
3544
try:
2418
3545
os.remove(tempname)
2419
3546
except NameError:
2420
3547
pass
2421
if e.errno not in set((errno.ENOENT, errno.EACCES,
2422
errno.EEXIST)):
2423
raise e
2424
3548
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3549
logger.warning("Could not save persistent state: {}"
3550
.format(os.strerror(e.errno)))
3551
else:
3552
logger.warning("Could not save persistent state:",
3553
exc_info=e)
3554
raise
3555
2425
3556
# Delete all clients, and settings from config
2426
3557
while tcp_server.clients:
2427
3558
name, client = tcp_server.clients.popitem()
2428
3559
if use_dbus:
2429
3560
client.remove_from_connection()
2430
# Don't signal anything except ClientRemoved
3561
# Don't signal the disabling
2431
3562
client.disable(quiet=True)
3563
# Emit D-Bus signal for removal
2432
3564
if use_dbus:
2433
# Emit D-Bus signal
2434
mandos_dbus_service.ClientRemoved(client
2435
.dbus_object_path,
2436
client.name)
3565
mandos_dbus_service.client_removed_signal(client)
2437
3566
client_settings.clear()
2438
3567
2439
3568
atexit.register(cleanup)
2440
2441
for client in tcp_server.clients.itervalues():
3569
3570
for client in tcp_server.clients.values():
2442
3571
if use_dbus:
2443
# Emit D-Bus signal
2444
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3572
# Emit D-Bus signal for adding
3573
mandos_dbus_service.client_added_signal(client)
2445
3574
# Need to initiate checking of clients
2446
3575
if client.enabled:
2447
3576
client.init_checker()
2448
3577
2449
3578
tcp_server.enable()
2450
3579
tcp_server.server_activate()
2451
3580
2452
3581
# Find out what port we got
2453
service.port = tcp_server.socket.getsockname()[1]
3582
if zeroconf:
3583
service.port = tcp_server.socket.getsockname()[1]
2454
3584
if use_ipv6:
2455
3585
logger.info("Now listening on address %r, port %d,"
2456
" flowinfo %d, scope_id %d"
2457
% tcp_server.socket.getsockname())
3586
" flowinfo %d, scope_id %d",
3587
*tcp_server.socket.getsockname())
2458
3588
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
3589
logger.info("Now listening on address %r, port %d",
3590
*tcp_server.socket.getsockname())
3591
3592
# service.interface = tcp_server.socket.getsockname()[3]
3593
2464
3594
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
3595
if zeroconf:
3596
# From the Avahi example code
3597
try:
3598
service.activate()
3599
except dbus.exceptions.DBusException as error:
3600
logger.critical("D-Bus Exception", exc_info=error)
3601
cleanup()
3602
sys.exit(1)
3603
# End of Avahi example code
3604
3605
GLib.io_add_watch(
3606
GLib.IOChannel.unix_new(tcp_server.fileno()),
3607
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3608
lambda *args, **kwargs: (tcp_server.handle_request
3609
(*args[2:], **kwargs) or True))
3610
2479
3611
logger.debug("Starting main loop")
2480
3612
main_loop.run()
2481
3613
except AvahiError as error:
2482
logger.critical("AvahiError: %s", error)
3614
logger.critical("Avahi Error", exc_info=error)
2483
3615
cleanup()
2484
3616
sys.exit(1)
2485
3617
except KeyboardInterrupt:
2490
3622
# Must run before the D-Bus bus name gets deregistered
2491
3623
cleanup()
2492
3624
3625
3626
def should_only_run_tests():
3627
parser = argparse.ArgumentParser(add_help=False)
3628
parser.add_argument("--check", action='store_true')
3629
args, unknown_args = parser.parse_known_args()
3630
run_tests = args.check
3631
if run_tests:
3632
# Remove --check argument from sys.argv
3633
sys.argv[1:] = unknown_args
3634
return run_tests
3635
3636
# Add all tests from doctest strings
3637
def load_tests(loader, tests, none):
3638
import doctest
3639
tests.addTests(doctest.DocTestSuite())
3640
return tests
3641
2493
3642
if __name__ == '__main__':
2494
main()
3643
try:
3644
if should_only_run_tests():
3645
# Call using ./mandos --check [--verbose]
3646
unittest.main()
3647
else:
3648
main()
3649
finally:
3650
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0