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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
- network-hooks.d
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
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
113
def initlogger(level=logging.WARNING):
151
def copy_function(func):
152
"""Make a copy of a function"""
153
if sys.version_info.major == 2:
154
return types.FunctionType(func.func_code,
155
func.func_globals,
156
func.func_name,
157
func.func_defaults,
158
func.func_closure)
159
else:
160
return types.FunctionType(func.__code__,
161
func.__globals__,
162
func.__name__,
163
func.__defaults__,
164
func.__closure__)
165
166
167
def initlogger(debug, level=logging.WARNING):
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
121
console = logging.StreamHandler()
122
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
123
' [%(process)d]:'
124
' %(levelname)s:'
125
' %(message)s'))
126
logger.addHandler(console)
178
179
if debug:
180
console = logging.StreamHandler()
181
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
182
' [%(process)d]:'
183
' %(levelname)s:'
184
' %(message)s'))
185
logger.addHandler(console)
127
186
logger.setLevel(level)
128
187
129
188
132
191
pass
133
192
134
193
135
class PGPEngine(object):
194
class PGPEngine:
136
195
"""A simple class for OpenPGP symmetric encryption & decryption"""
196
137
197
def __init__(self):
138
self.gnupg = GnuPGInterface.GnuPG()
139
198
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
140
self.gnupg = GnuPGInterface.GnuPG()
141
self.gnupg.options.meta_interactive = False
142
self.gnupg.options.homedir = self.tempdir
143
self.gnupg.options.extra_args.extend(['--force-mdc',
144
'--quiet'])
145
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
146
218
def __enter__(self):
147
219
return self
148
149
def __exit__ (self, exc_type, exc_value, traceback):
220
221
def __exit__(self, exc_type, exc_value, traceback):
150
222
self._cleanup()
151
223
return False
152
224
153
225
def __del__(self):
154
226
self._cleanup()
155
227
156
228
def _cleanup(self):
157
229
if self.tempdir is not None:
158
230
# Delete contents of tempdir
159
231
for root, dirs, files in os.walk(self.tempdir,
160
topdown = False):
232
topdown=False):
161
233
for filename in files:
162
234
os.remove(os.path.join(root, filename))
163
235
for dirname in dirs:
165
237
# Remove tempdir
166
238
os.rmdir(self.tempdir)
167
239
self.tempdir = None
168
240
169
241
def password_encode(self, password):
170
242
# Passphrase can not be empty and can not contain newlines or
171
243
# NUL bytes. So we prefix it and hex encode it.
172
return b"mandos" + binascii.hexlify(password)
173
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
174
252
def encrypt(self, data, password):
175
self.gnupg.passphrase = self.password_encode(password)
176
with open(os.devnull) as devnull:
177
try:
178
proc = self.gnupg.run(['--symmetric'],
179
create_fhs=['stdin', 'stdout'],
180
attach_fhs={'stderr': devnull})
181
with contextlib.closing(proc.handles['stdin']) as f:
182
f.write(data)
183
with contextlib.closing(proc.handles['stdout']) as f:
184
ciphertext = f.read()
185
proc.wait()
186
except IOError as e:
187
raise PGPError(e)
188
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)
189
268
return ciphertext
190
269
191
270
def decrypt(self, data, password):
192
self.gnupg.passphrase = self.password_encode(password)
193
with open(os.devnull) as devnull:
194
try:
195
proc = self.gnupg.run(['--decrypt'],
196
create_fhs=['stdin', 'stdout'],
197
attach_fhs={'stderr': devnull})
198
with contextlib.closing(proc.handles['stdin'] ) as f:
199
f.write(data)
200
with contextlib.closing(proc.handles['stdout']) as f:
201
decrypted_plaintext = f.read()
202
proc.wait()
203
except IOError as e:
204
raise PGPError(e)
205
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)
206
286
return decrypted_plaintext
207
287
208
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
209
314
210
315
class AvahiError(Exception):
211
316
def __init__(self, value, *args, **kwargs):
212
317
self.value = value
213
super(AvahiError, self).__init__(value, *args, **kwargs)
214
def __unicode__(self):
215
return unicode(repr(self.value))
318
return super(AvahiError, self).__init__(value, *args,
319
**kwargs)
320
216
321
217
322
class AvahiServiceError(AvahiError):
218
323
pass
219
324
325
220
326
class AvahiGroupError(AvahiError):
221
327
pass
222
328
223
329
224
class AvahiService(object):
330
class AvahiService:
225
331
"""An Avahi (Zeroconf) service.
226
332
227
333
Attributes:
228
334
interface: integer; avahi.IF_UNSPEC or an interface index.
229
335
Used to optionally bind to the specified interface.
230
336
name: string; Example: 'Mandos'
231
337
type: string; Example: '_mandos._tcp'.
232
See <http://www.dns-sd.org/ServiceTypes.html>
338
See <https://www.iana.org/assignments/service-names-port-numbers>
233
339
port: integer; what port to announce
234
340
TXT: list of strings; TXT record for the service
235
341
domain: string; Domain to publish on, default to .local if empty.
241
347
server: D-Bus Server
242
348
bus: dbus.SystemBus()
243
349
"""
244
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
245
servicetype = None, port = None, TXT = None,
246
domain = "", host = "", max_renames = 32768,
247
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):
248
362
self.interface = interface
249
363
self.name = name
250
364
self.type = servicetype
259
373
self.server = None
260
374
self.bus = bus
261
375
self.entry_group_state_changed_match = None
262
def rename(self):
376
377
def rename(self, remove=True):
263
378
"""Derived from the Avahi example code"""
264
379
if self.rename_count >= self.max_renames:
265
380
logger.critical("No suitable Zeroconf service name found"
266
381
" after %i retries, exiting.",
267
382
self.rename_count)
268
383
raise AvahiServiceError("Too many renames")
269
self.name = unicode(self.server
270
.GetAlternativeServiceName(self.name))
384
self.name = str(
385
self.server.GetAlternativeServiceName(self.name))
386
self.rename_count += 1
271
387
logger.info("Changing Zeroconf service name to %r ...",
272
388
self.name)
273
self.remove()
389
if remove:
390
self.remove()
274
391
try:
275
392
self.add()
276
393
except dbus.exceptions.DBusException as error:
277
logger.critical("DBusException: %s", error)
278
self.cleanup()
279
os._exit(1)
280
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
281
403
def remove(self):
282
404
"""Derived from the Avahi example code"""
283
405
if self.entry_group_state_changed_match is not None:
285
407
self.entry_group_state_changed_match = None
286
408
if self.group is not None:
287
409
self.group.Reset()
410
288
411
def add(self):
289
412
"""Derived from the Avahi example code"""
290
413
self.remove()
307
430
dbus.UInt16(self.port),
308
431
avahi.string_array_to_txt_array(self.TXT))
309
432
self.group.Commit()
433
310
434
def entry_group_state_changed(self, state, error):
311
435
"""Derived from the Avahi example code"""
312
436
logger.debug("Avahi entry group state change: %i", state)
313
437
314
438
if state == avahi.ENTRY_GROUP_ESTABLISHED:
315
439
logger.debug("Zeroconf service established.")
316
440
elif state == avahi.ENTRY_GROUP_COLLISION:
318
442
self.rename()
319
443
elif state == avahi.ENTRY_GROUP_FAILURE:
320
444
logger.critical("Avahi: Error in group state changed %s",
321
unicode(error))
322
raise AvahiGroupError("State changed: %s"
323
% unicode(error))
445
str(error))
446
raise AvahiGroupError("State changed: {!s}".format(error))
447
324
448
def cleanup(self):
325
449
"""Derived from the Avahi example code"""
326
450
if self.group is not None:
331
455
pass
332
456
self.group = None
333
457
self.remove()
458
334
459
def server_state_changed(self, state, error=None):
335
460
"""Derived from the Avahi example code"""
336
461
logger.debug("Avahi server state change: %i", state)
337
bad_states = { avahi.SERVER_INVALID:
338
"Zeroconf server invalid",
339
avahi.SERVER_REGISTERING: None,
340
avahi.SERVER_COLLISION:
341
"Zeroconf server name collision",
342
avahi.SERVER_FAILURE:
343
"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
}
344
468
if state in bad_states:
345
469
if bad_states[state] is not None:
346
470
if error is None:
349
473
logger.error(bad_states[state] + ": %r", error)
350
474
self.cleanup()
351
475
elif state == avahi.SERVER_RUNNING:
352
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)
353
488
else:
354
489
if error is None:
355
490
logger.debug("Unknown state: %r", state)
356
491
else:
357
492
logger.debug("Unknown state: %r: %r", state, error)
493
358
494
def activate(self):
359
495
"""Derived from the Avahi example code"""
360
496
if self.server is None:
364
500
follow_name_owner_changes=True),
365
501
avahi.DBUS_INTERFACE_SERVER)
366
502
self.server.connect_to_signal("StateChanged",
367
self.server_state_changed)
503
self.server_state_changed)
368
504
self.server_state_changed(self.server.GetState())
369
505
506
370
507
class AvahiServiceToSyslog(AvahiService):
371
def rename(self):
508
def rename(self, *args, **kwargs):
372
509
"""Add the new name to the syslog messages"""
373
ret = AvahiService.rename(self)
374
syslogger.setFormatter(logging.Formatter
375
('Mandos (%s) [%%(process)d]:'
376
' %%(levelname)s: %%(message)s'
377
% 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)))
378
514
return ret
379
515
380
def timedelta_to_milliseconds(td):
381
"Convert a datetime.timedelta() to milliseconds"
382
return ((td.days * 24 * 60 * 60 * 1000)
383
+ (td.seconds * 1000)
384
+ (td.microseconds // 1000))
385
386
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:
387
830
"""A representation of a client host served by this server.
388
831
389
832
Attributes:
390
833
approved: bool(); 'None' if not yet approved/disapproved
391
834
approval_delay: datetime.timedelta(); Time to wait for approval
392
835
approval_duration: datetime.timedelta(); Duration of one approval
393
checker: subprocess.Popen(); a running checker process used
394
to see if the client lives.
395
'None' if no process is running.
396
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
397
840
checker_command: string; External command which is run to check
398
841
if client lives. %() expansions are done at
399
842
runtime with vars(self) as dict, so that for
400
843
instance %(name)s can be used in the command.
401
checker_initiator_tag: a gobject event source tag, or None
844
checker_initiator_tag: a GLib event source tag, or None
402
845
created: datetime.datetime(); (UTC) object creation
403
846
client_structure: Object describing what attributes a client has
404
847
and is used for storing the client at exit
405
848
current_checker_command: string; current running checker_command
406
disable_initiator_tag: a gobject event source tag, or None
849
disable_initiator_tag: a GLib event source tag, or None
407
850
enabled: bool()
408
851
fingerprint: string (40 or 32 hexadecimal digits); used to
409
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
410
855
host: string; available for use by the checker command
411
856
interval: datetime.timedelta(); How often to start a new checker
412
857
last_approval_request: datetime.datetime(); (UTC) or None
413
858
last_checked_ok: datetime.datetime(); (UTC) or None
414
859
last_checker_status: integer between 0 and 255 reflecting exit
415
860
status of last checker. -1 reflects crashed
416
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
417
864
last_enabled: datetime.datetime(); (UTC) or None
418
865
name: string; from the config file, used in log messages and
419
866
D-Bus identifiers
420
867
secret: bytestring; sent verbatim (over TLS) to client
421
868
timeout: datetime.timedelta(); How long from last_checked_ok
422
869
until this client is disabled
423
extended_timeout: extra long timeout when password has been sent
870
extended_timeout: extra long timeout when secret has been sent
424
871
runtime_expansions: Allowed attributes for runtime expansion.
425
872
expires: datetime.datetime(); time (UTC) when a client will be
426
873
disabled, or None
874
server_settings: The server_settings dict from main()
427
875
"""
428
876
429
877
runtime_expansions = ("approval_delay", "approval_duration",
430
"created", "enabled", "fingerprint",
431
"host", "interval", "last_checked_ok",
878
"created", "enabled", "expires", "key_id",
879
"fingerprint", "host", "interval",
880
"last_approval_request", "last_checked_ok",
432
881
"last_enabled", "name", "timeout")
433
client_defaults = { "timeout": "5m",
434
"extended_timeout": "15m",
435
"interval": "2m",
436
"checker": "fping -q -- %%(host)s",
437
"host": "",
438
"approval_delay": "0s",
439
"approval_duration": "1s",
440
"approved_by_default": "True",
441
"enabled": "True",
442
}
443
444
def timeout_milliseconds(self):
445
"Return the 'timeout' attribute in milliseconds"
446
return timedelta_to_milliseconds(self.timeout)
447
448
def extended_timeout_milliseconds(self):
449
"Return the 'extended_timeout' attribute in milliseconds"
450
return timedelta_to_milliseconds(self.extended_timeout)
451
452
def interval_milliseconds(self):
453
"Return the 'interval' attribute in milliseconds"
454
return timedelta_to_milliseconds(self.interval)
455
456
def approval_delay_milliseconds(self):
457
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
}
458
893
459
894
@staticmethod
460
895
def config_parser(config):
461
""" Construct a new dict of client settings of this form:
896
"""Construct a new dict of client settings of this form:
462
897
{ client_name: {setting_name: value, ...}, ...}
463
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
"""
464
902
settings = {}
465
903
for client_name in config.sections():
466
904
section = dict(config.items(client_name))
467
905
client = settings[client_name] = {}
468
906
469
907
client["host"] = section["host"]
470
908
# Reformat values from string types to Python types
471
909
client["approved_by_default"] = config.getboolean(
472
910
client_name, "approved_by_default")
473
client["enabled"] = config.getboolean(client_name, "enabled")
474
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(" ", ""))
475
919
client["fingerprint"] = (section["fingerprint"].upper()
476
920
.replace(" ", ""))
477
921
if "secret" in section:
478
client["secret"] = section["secret"].decode("base64")
922
client["secret"] = codecs.decode(section["secret"]
923
.encode("utf-8"),
924
"base64")
479
925
elif "secfile" in section:
480
926
with open(os.path.expanduser(os.path.expandvars
481
927
(section["secfile"])),
482
928
"rb") as secfile:
483
929
client["secret"] = secfile.read()
484
930
else:
485
raise TypeError("No secret or secfile for section %s"
486
% section)
931
raise TypeError("No secret or secfile for section {}"
932
.format(section))
487
933
client["timeout"] = string_to_delta(section["timeout"])
488
934
client["extended_timeout"] = string_to_delta(
489
935
section["extended_timeout"])
495
941
client["checker_command"] = section["checker"]
496
942
client["last_approval_request"] = None
497
943
client["last_checked_ok"] = None
498
client["last_checker_status"] = None
499
if client["enabled"]:
500
client["last_enabled"] = datetime.datetime.utcnow()
501
client["expires"] = (datetime.datetime.utcnow()
502
+ client["timeout"])
503
else:
504
client["last_enabled"] = None
505
client["expires"] = None
944
client["last_checker_status"] = -2
506
945
507
946
return settings
508
509
510
def __init__(self, settings, name = None):
511
"""Note: the 'checker' key in 'config' sets the
512
'checker_command' attribute and *not* the 'checker'
513
attribute."""
947
948
def __init__(self, settings, name=None, server_settings=None):
514
949
self.name = name
950
if server_settings is None:
951
server_settings = {}
952
self.server_settings = server_settings
515
953
# adding all client settings
516
for setting, value in settings.iteritems():
954
for setting, value in settings.items():
517
955
setattr(self, setting, value)
518
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
519
967
logger.debug("Creating client %r", self.name)
520
# Uppercase and remove spaces from fingerprint for later
521
# comparison purposes with return value from the fingerprint()
522
# function
968
logger.debug(" Key ID: %s", self.key_id)
523
969
logger.debug(" Fingerprint: %s", self.fingerprint)
524
self.created = settings.get("created", datetime.datetime.utcnow())
970
self.created = settings.get("created",
971
datetime.datetime.utcnow())
525
972
526
973
# attributes specific for this server instance
527
974
self.checker = None
531
978
self.current_checker_command = None
532
979
self.approved = None
533
980
self.approvals_pending = 0
534
self.changedstate = (multiprocessing_manager
535
.Condition(multiprocessing_manager
536
.Lock()))
537
self.client_structure = [attr for attr in
538
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()
539
985
if not attr.startswith("_")]
540
986
self.client_structure.append("client_structure")
541
542
for name, t in inspect.getmembers(type(self),
543
lambda obj:
544
isinstance(obj,
545
property)):
987
988
for name, t in inspect.getmembers(
989
type(self), lambda obj: isinstance(obj, property)):
546
990
if not name.startswith("_"):
547
991
self.client_structure.append(name)
548
992
549
993
# Send notice to process children that client state has changed
550
994
def send_changedstate(self):
551
995
with self.changedstate:
552
996
self.changedstate.notify_all()
553
997
554
998
def enable(self):
555
999
"""Start this client's checker and timeout hooks"""
556
1000
if getattr(self, "enabled", False):
557
1001
# Already enabled
558
1002
return
559
self.send_changedstate()
560
1003
self.expires = datetime.datetime.utcnow() + self.timeout
561
1004
self.enabled = True
562
1005
self.last_enabled = datetime.datetime.utcnow()
563
1006
self.init_checker()
564
1007
self.send_changedstate()
1008
565
1009
def disable(self, quiet=True):
566
1010
"""Disable this client."""
567
1011
if not getattr(self, "enabled", False):
568
1012
return False
569
1013
if not quiet:
570
self.send_changedstate()
571
if not quiet:
572
1014
logger.info("Disabling client %s", self.name)
573
if getattr(self, "disable_initiator_tag", False):
574
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)
575
1017
self.disable_initiator_tag = None
576
1018
self.expires = None
577
if getattr(self, "checker_initiator_tag", False):
578
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)
579
1021
self.checker_initiator_tag = None
580
1022
self.stop_checker()
581
1023
self.enabled = False
582
# 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
583
1027
return False
584
1028
585
1029
def __del__(self):
586
1030
self.disable()
587
1031
588
1032
def init_checker(self):
589
1033
# Schedule a new checker to be started an 'interval' from now,
590
1034
# and every interval from then on.
591
self.checker_initiator_tag = (gobject.timeout_add
592
(self.interval_milliseconds(),
593
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)
594
1040
# Schedule a disable() when 'timeout' has passed
595
self.disable_initiator_tag = (gobject.timeout_add
596
(self.timeout_milliseconds(),
597
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)
598
1045
# Also start a new checker *right now*.
599
1046
self.start_checker()
600
601
def checker_callback(self, pid, condition, command):
1047
1048
def checker_callback(self, source, condition, connection,
1049
command):
602
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()
603
1056
self.checker_callback_tag = None
604
1057
self.checker = None
605
if os.WIFEXITED(condition):
606
self.last_checker_status = os.WEXITSTATUS(condition)
1058
1059
if returncode >= 0:
1060
self.last_checker_status = returncode
1061
self.last_checker_signal = None
607
1062
if self.last_checker_status == 0:
608
1063
logger.info("Checker for %(name)s succeeded",
609
1064
vars(self))
610
1065
self.checked_ok()
611
1066
else:
612
logger.info("Checker for %(name)s failed",
613
vars(self))
1067
logger.info("Checker for %(name)s failed", vars(self))
614
1068
else:
615
1069
self.last_checker_status = -1
1070
self.last_checker_signal = -returncode
616
1071
logger.warning("Checker for %(name)s crashed?",
617
1072
vars(self))
618
619
def checked_ok(self, timeout=None):
620
"""Bump up the timeout for this client.
621
622
This should only be called when the client has been seen,
623
alive and well.
624
"""
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."""
625
1084
if timeout is None:
626
1085
timeout = self.timeout
627
self.last_checked_ok = datetime.datetime.utcnow()
628
1086
if self.disable_initiator_tag is not None:
629
gobject.source_remove(self.disable_initiator_tag)
1087
GLib.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
630
1089
if getattr(self, "enabled", False):
631
self.disable_initiator_tag = (gobject.timeout_add
632
(timedelta_to_milliseconds
633
(timeout), self.disable))
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(timeout.total_seconds() * 1000), self.disable)
634
1092
self.expires = datetime.datetime.utcnow() + timeout
635
1093
636
1094
def need_approval(self):
637
1095
self.last_approval_request = datetime.datetime.utcnow()
638
1096
639
1097
def start_checker(self):
640
1098
"""Start a new checker subprocess if one is not running.
641
1099
642
1100
If a checker already exists, leave it running and do
643
1101
nothing."""
644
1102
# The reason for not killing a running checker is that if we
645
# did that, then if a checker (for some reason) started
646
# running slowly and taking more than 'interval' time, the
647
# client would inevitably timeout, since no checker would get
648
# 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
649
1107
# checkers alone, the checker would have to take more time
650
1108
# than 'timeout' for the client to be disabled, which is as it
651
1109
# should be.
652
653
# If a checker exists, make sure it is not a zombie
654
try:
655
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
656
except (AttributeError, OSError) as error:
657
if (isinstance(error, OSError)
658
and error.errno != errno.ECHILD):
659
raise error
660
else:
661
if pid:
662
logger.warning("Checker was a zombie")
663
gobject.source_remove(self.checker_callback_tag)
664
self.checker_callback(pid, status,
665
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
666
1115
# Start a new checker if needed
667
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}
668
1121
try:
669
# In case checker_command has exactly one % operator
670
command = self.checker_command % self.host
671
except TypeError:
672
# Escape attributes for the shell
673
escaped_attrs = dict(
674
(attr,
675
re.escape(unicode(str(getattr(self, attr, "")),
676
errors=
677
'replace')))
678
for attr in
679
self.runtime_expansions)
680
681
try:
682
command = self.checker_command % escaped_attrs
683
except TypeError as error:
684
logger.error('Could not format string "%s":'
685
' %s', self.checker_command, error)
686
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
687
1128
self.current_checker_command = command
688
try:
689
logger.info("Starting checker %r for %s",
690
command, self.name)
691
# We don't need to redirect stdout and stderr, since
692
# in normal mode, that is already done by daemon(),
693
# and in debug mode we don't want to. (Stdin is
694
# always replaced by /dev/null.)
695
self.checker = subprocess.Popen(command,
696
close_fds=True,
697
shell=True, cwd="/")
698
self.checker_callback_tag = (gobject.child_watch_add
699
(self.checker.pid,
700
self.checker_callback,
701
data=command))
702
# The checker may have completed before the gobject
703
# watch was added. Check for this.
704
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
705
if pid:
706
gobject.source_remove(self.checker_callback_tag)
707
self.checker_callback(pid, status, command)
708
except OSError as error:
709
logger.error("Failed to start subprocess: %s",
710
error)
711
# 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
712
1156
return True
713
1157
714
1158
def stop_checker(self):
715
1159
"""Force the checker process, if any, to stop."""
716
1160
if self.checker_callback_tag:
717
gobject.source_remove(self.checker_callback_tag)
1161
GLib.source_remove(self.checker_callback_tag)
718
1162
self.checker_callback_tag = None
719
1163
if getattr(self, "checker", None) is None:
720
1164
return
721
1165
logger.debug("Stopping checker for %(name)s", vars(self))
722
try:
723
os.kill(self.checker.pid, signal.SIGTERM)
724
#time.sleep(0.5)
725
#if self.checker.poll() is None:
726
# os.kill(self.checker.pid, signal.SIGKILL)
727
except OSError as error:
728
if error.errno != errno.ESRCH: # No such process
729
raise
1166
self.checker.terminate()
730
1167
self.checker = None
731
1168
732
1169
733
def dbus_service_property(dbus_interface, signature="v",
734
access="readwrite", byte_arrays=False):
1170
def dbus_service_property(dbus_interface,
1171
signature="v",
1172
access="readwrite",
1173
byte_arrays=False):
735
1174
"""Decorators for marking methods of a DBusObjectWithProperties to
736
1175
become properties on the D-Bus.
737
1176
738
1177
The decorated method will be called with no arguments by "Get"
739
1178
and with one argument by "Set".
740
1179
741
1180
The parameters, where they are supported, are the same as
742
1181
dbus.service.method, except there is only "signature", since the
743
1182
type from Get() and the type sent to Set() is the same.
746
1185
# "Set" method, so we fail early here:
747
1186
if byte_arrays and signature != "ay":
748
1187
raise ValueError("Byte arrays not supported for non-'ay'"
749
" signature %r" % signature)
1188
" signature {!r}".format(signature))
1189
750
1190
def decorator(func):
751
1191
func._dbus_is_property = True
752
1192
func._dbus_interface = dbus_interface
755
1195
func._dbus_name = func.__name__
756
1196
if func._dbus_name.endswith("_dbus_property"):
757
1197
func._dbus_name = func._dbus_name[:-14]
758
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
759
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
760
1244
return decorator
761
1245
762
1246
763
1247
class DBusPropertyException(dbus.exceptions.DBusException):
764
1248
"""A base class for D-Bus property-related exceptions
765
1249
"""
766
def __unicode__(self):
767
return unicode(str(self))
1250
pass
768
1251
769
1252
770
1253
class DBusPropertyAccessException(DBusPropertyException):
779
1262
pass
780
1263
781
1264
782
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):
783
1355
"""A D-Bus object with properties.
784
1356
785
1357
Classes inheriting from this can use the dbus_service_property
786
1358
decorator to expose methods as D-Bus properties. It exposes the
787
1359
standard Get(), Set(), and GetAll() methods on the D-Bus.
788
1360
"""
789
790
@staticmethod
791
def _is_dbus_property(obj):
792
return getattr(obj, "_dbus_is_property", False)
793
794
def _get_all_dbus_properties(self):
795
"""Returns a generator of (name, attribute) pairs
796
"""
797
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
798
for cls in self.__class__.__mro__
799
for name, prop in
800
inspect.getmembers(cls, self._is_dbus_property))
801
1361
802
1362
def _get_dbus_property(self, interface_name, property_name):
803
1363
"""Returns a bound method if one exists which is a D-Bus
804
1364
property with the specified name and interface.
805
1365
"""
806
for cls in self.__class__.__mro__:
807
for name, value in (inspect.getmembers
808
(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")):
809
1369
if (value._dbus_name == property_name
810
1370
and value._dbus_interface == interface_name):
811
1371
return value.__get__(self)
812
1372
813
1373
# No such property
814
raise DBusPropertyNotFound(self.dbus_object_path + ":"
815
+ interface_name + "."
816
+ property_name)
817
818
@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",
819
1388
out_signature="v")
820
1389
def Get(self, interface_name, property_name):
821
1390
"""Standard D-Bus property Get() method, see D-Bus standard.
827
1396
if not hasattr(value, "variant_level"):
828
1397
return value
829
1398
return type(value)(value, variant_level=value.variant_level+1)
830
1399
831
1400
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
832
1401
def Set(self, interface_name, property_name, value):
833
1402
"""Standard D-Bus property Set() method, see D-Bus standard.
839
1408
# The byte_arrays option is not supported yet on
840
1409
# signatures other than "ay".
841
1410
if prop._dbus_signature != "ay":
842
raise ValueError
843
value = dbus.ByteArray(''.join(unichr(byte)
844
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))
845
1415
prop(value)
846
847
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1416
1417
@dbus.service.method(dbus.PROPERTIES_IFACE,
1418
in_signature="s",
848
1419
out_signature="a{sv}")
849
1420
def GetAll(self, interface_name):
850
1421
"""Standard D-Bus property GetAll() method, see D-Bus
851
1422
standard.
852
1423
853
1424
Note: Will not include properties with access="write".
854
1425
"""
855
1426
properties = {}
856
for name, prop in self._get_all_dbus_properties():
1427
for name, prop in self._get_all_dbus_things("property"):
857
1428
if (interface_name
858
1429
and interface_name != prop._dbus_interface):
859
1430
# Interface non-empty but did not match
865
1436
if not hasattr(value, "variant_level"):
866
1437
properties[name] = value
867
1438
continue
868
properties[name] = type(value)(value, variant_level=
869
value.variant_level+1)
1439
properties[name] = type(value)(
1440
value, variant_level=value.variant_level + 1)
870
1441
return dbus.Dictionary(properties, signature="sv")
871
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
872
1451
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
873
1452
out_signature="s",
874
1453
path_keyword='object_path',
875
1454
connection_keyword='connection')
876
1455
def Introspect(self, object_path, connection):
877
"""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.
878
1459
"""
879
xmlstring = dbus.service.Object.Introspect(self, object_path,
880
connection)
1460
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1461
object_path,
1462
connection)
881
1463
try:
882
1464
document = xml.dom.minidom.parseString(xmlstring)
1465
883
1466
def make_tag(document, name, prop):
884
1467
e = document.createElement("property")
885
1468
e.setAttribute("name", name)
886
1469
e.setAttribute("type", prop._dbus_signature)
887
1470
e.setAttribute("access", prop._dbus_access)
888
1471
return e
1472
889
1473
for if_tag in document.getElementsByTagName("interface"):
1474
# Add property tags
890
1475
for tag in (make_tag(document, name, prop)
891
1476
for name, prop
892
in self._get_all_dbus_properties()
1477
in self._get_all_dbus_things("property")
893
1478
if prop._dbus_interface
894
1479
== if_tag.getAttribute("name")):
895
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)
896
1497
# Add the names to the return values for the
897
1498
# "org.freedesktop.DBus.Properties" methods
898
1499
if (if_tag.getAttribute("name")
913
1514
except (AttributeError, xml.dom.DOMException,
914
1515
xml.parsers.expat.ExpatError) as error:
915
1516
logger.error("Failed to override Introspection method",
916
error)
917
return xmlstring
918
919
920
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):
921
1593
"""Convert a UTC datetime.datetime() to a D-Bus type."""
922
1594
if dt is None:
923
return dbus.String("", variant_level = variant_level)
924
return dbus.String(dt.isoformat(),
925
variant_level=variant_level)
926
927
928
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
929
.__metaclass__):
930
"""Applied to an empty subclass of a D-Bus object, this metaclass
931
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).
932
1621
"""
933
def __new__(mcs, name, bases, attr):
934
# Go through all the base classes which could have D-Bus
935
# methods, signals, or properties in them
936
for base in (b for b in bases
937
if issubclass(b, dbus.service.Object)):
938
# Go though all attributes of the base class
939
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):
940
1630
# Ignore non-D-Bus attributes, and D-Bus attributes
941
1631
# with the wrong interface name
942
1632
if (not hasattr(attribute, "_dbus_interface")
943
or not attribute._dbus_interface
944
.startswith("se.recompile.Mandos")):
1633
or not attribute._dbus_interface.startswith(
1634
orig_interface_name)):
945
1635
continue
946
1636
# Create an alternate D-Bus interface name based on
947
1637
# the current name
948
alt_interface = (attribute._dbus_interface
949
.replace("se.recompile.Mandos",
950
"se.bsnet.fukt.Mandos"))
1638
alt_interface = attribute._dbus_interface.replace(
1639
orig_interface_name, alt_interface_name)
1640
interface_names.add(alt_interface)
951
1641
# Is this a D-Bus signal?
952
1642
if getattr(attribute, "_dbus_is_signal", False):
953
# Extract the original non-method function by
954
# black magic
955
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(
956
1647
zip(attribute.func_code.co_freevars,
957
attribute.__closure__))["func"]
958
.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)
959
1655
# Create a new, but exactly alike, function
960
1656
# object, and decorate it to be a new D-Bus signal
961
1657
# with the alternate D-Bus interface name
962
new_function = (dbus.service.signal
963
(alt_interface,
964
attribute._dbus_signature)
965
(types.FunctionType(
966
nonmethod_func.func_code,
967
nonmethod_func.func_globals,
968
nonmethod_func.func_name,
969
nonmethod_func.func_defaults,
970
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
971
1669
# Define a creator of a function to call both the
972
# old and new functions, so both the old and new
973
# 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
974
1673
def fixscope(func1, func2):
975
1674
"""This function is a scope container to pass
976
1675
func1 and func2 to the "call_both" function
977
1676
outside of its arguments"""
1677
1678
@functools.wraps(func2)
978
1679
def call_both(*args, **kwargs):
979
1680
"""This function will emit two D-Bus
980
1681
signals by calling func1 and func2"""
981
1682
func1(*args, **kwargs)
982
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
983
1690
return call_both
984
1691
# Create the "call_both" function and add it to
985
1692
# the class
986
attr[attrname] = fixscope(attribute,
987
new_function)
1693
attr[attrname] = fixscope(attribute, new_function)
988
1694
# Is this a D-Bus method?
989
1695
elif getattr(attribute, "_dbus_is_method", False):
990
1696
# Create a new, but exactly alike, function
991
1697
# object. Decorate it to be a new D-Bus method
992
1698
# with the alternate D-Bus interface name. Add it
993
1699
# to the class.
994
attr[attrname] = (dbus.service.method
995
(alt_interface,
996
attribute._dbus_in_signature,
997
attribute._dbus_out_signature)
998
(types.FunctionType
999
(attribute.func_code,
1000
attribute.func_globals,
1001
attribute.func_name,
1002
attribute.func_defaults,
1003
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
1004
1712
# Is this a D-Bus property?
1005
1713
elif getattr(attribute, "_dbus_is_property", False):
1006
1714
# Create a new, but exactly alike, function
1007
1715
# object, and decorate it to be a new D-Bus
1008
1716
# property with the alternate D-Bus interface
1009
1717
# name. Add it to the class.
1010
attr[attrname] = (dbus_service_property
1011
(alt_interface,
1012
attribute._dbus_signature,
1013
attribute._dbus_access,
1014
attribute
1015
._dbus_get_args_options
1016
["byte_arrays"])
1017
(types.FunctionType
1018
(attribute.func_code,
1019
attribute.func_globals,
1020
attribute.func_name,
1021
attribute.func_defaults,
1022
attribute.func_closure)))
1023
return type.__new__(mcs, name, bases, attr)
1024
1025
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"})
1026
1770
class ClientDBus(Client, DBusObjectWithProperties):
1027
1771
"""A Client class using D-Bus
1028
1772
1029
1773
Attributes:
1030
1774
dbus_object_path: dbus.ObjectPath
1031
1775
bus: dbus.SystemBus()
1032
1776
"""
1033
1777
1034
1778
runtime_expansions = (Client.runtime_expansions
1035
+ ("dbus_object_path",))
1036
1779
+ ("dbus_object_path", ))
1780
1781
_interface = "se.recompile.Mandos.Client"
1782
1037
1783
# dbus.service.Object doesn't use super(), so we can't either.
1038
1039
def __init__(self, bus = None, *args, **kwargs):
1784
1785
def __init__(self, bus=None, *args, **kwargs):
1040
1786
self.bus = bus
1041
1787
Client.__init__(self, *args, **kwargs)
1042
self._approvals_pending = 0
1043
1044
self._approvals_pending = 0
1045
1788
# Only now, when this client is initialized, can it show up on
1046
1789
# the D-Bus
1047
client_object_name = unicode(self.name).translate(
1790
client_object_name = str(self.name).translate(
1048
1791
{ord("."): ord("_"),
1049
1792
ord("-"): ord("_")})
1050
self.dbus_object_path = (dbus.ObjectPath
1051
("/clients/" + client_object_name))
1793
self.dbus_object_path = dbus.ObjectPath(
1794
"/clients/" + client_object_name)
1052
1795
DBusObjectWithProperties.__init__(self, self.bus,
1053
1796
self.dbus_object_path)
1054
1055
def notifychangeproperty(transform_func,
1056
dbus_name, type_func=lambda x: x,
1057
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):
1058
1803
""" Modify a variable so that it's a property which announces
1059
1804
its changes to DBus.
1060
1805
1061
1806
transform_fun: Function that takes a value and a variant_level
1062
1807
and transforms it to a D-Bus type.
1063
1808
dbus_name: D-Bus name of the variable
1065
1810
to the D-Bus. Default: no transform
1066
1811
variant_level: D-Bus variant level. Default: 1
1067
1812
"""
1068
attrname = "_{0}".format(dbus_name)
1813
attrname = "_{}".format(dbus_name)
1814
1069
1815
def setter(self, value):
1070
1816
if hasattr(self, "dbus_object_path"):
1071
1817
if (not hasattr(self, attrname) or
1072
1818
type_func(getattr(self, attrname, None))
1073
1819
!= type_func(value)):
1074
dbus_value = transform_func(type_func(value),
1075
variant_level
1076
=variant_level)
1077
self.PropertyChanged(dbus.String(dbus_name),
1078
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())
1079
1835
setattr(self, attrname, value)
1080
1836
1081
1837
return property(lambda self: getattr(self, attrname), setter)
1082
1083
1838
1084
1839
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1085
1840
approvals_pending = notifychangeproperty(dbus.Boolean,
1086
1841
"ApprovalPending",
1087
type_func = bool)
1842
type_func=bool)
1088
1843
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1089
1844
last_enabled = notifychangeproperty(datetime_to_dbus,
1090
1845
"LastEnabled")
1091
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1092
type_func = lambda checker:
1093
checker is not None)
1846
checker = notifychangeproperty(
1847
dbus.Boolean, "CheckerRunning",
1848
type_func=lambda checker: checker is not None)
1094
1849
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1095
1850
"LastCheckedOK")
1851
last_checker_status = notifychangeproperty(dbus.Int16,
1852
"LastCheckerStatus")
1096
1853
last_approval_request = notifychangeproperty(
1097
1854
datetime_to_dbus, "LastApprovalRequest")
1098
1855
approved_by_default = notifychangeproperty(dbus.Boolean,
1099
1856
"ApprovedByDefault")
1100
approval_delay = notifychangeproperty(dbus.UInt64,
1101
"ApprovalDelay",
1102
type_func =
1103
timedelta_to_milliseconds)
1857
approval_delay = notifychangeproperty(
1858
dbus.UInt64, "ApprovalDelay",
1859
type_func=lambda td: td.total_seconds() * 1000)
1104
1860
approval_duration = notifychangeproperty(
1105
1861
dbus.UInt64, "ApprovalDuration",
1106
type_func = timedelta_to_milliseconds)
1862
type_func=lambda td: td.total_seconds() * 1000)
1107
1863
host = notifychangeproperty(dbus.String, "Host")
1108
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1109
type_func =
1110
timedelta_to_milliseconds)
1864
timeout = notifychangeproperty(
1865
dbus.UInt64, "Timeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
1111
1867
extended_timeout = notifychangeproperty(
1112
1868
dbus.UInt64, "ExtendedTimeout",
1113
type_func = timedelta_to_milliseconds)
1114
interval = notifychangeproperty(dbus.UInt64,
1115
"Interval",
1116
type_func =
1117
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)
1118
1873
checker_command = notifychangeproperty(dbus.String, "Checker")
1119
1874
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1875
invalidate_only=True)
1876
1120
1877
del notifychangeproperty
1121
1878
1122
1879
def __del__(self, *args, **kwargs):
1123
1880
try:
1124
1881
self.remove_from_connection()
1127
1884
if hasattr(DBusObjectWithProperties, "__del__"):
1128
1885
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1129
1886
Client.__del__(self, *args, **kwargs)
1130
1131
def checker_callback(self, pid, condition, command,
1132
*args, **kwargs):
1133
self.checker_callback_tag = None
1134
self.checker = None
1135
if os.WIFEXITED(condition):
1136
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:
1137
1895
# Emit D-Bus signal
1138
1896
self.CheckerCompleted(dbus.Int16(exitstatus),
1139
dbus.Int64(condition),
1897
# This is specific to GNU libC
1898
dbus.Int64(exitstatus << 8),
1140
1899
dbus.String(command))
1141
1900
else:
1142
1901
# Emit D-Bus signal
1143
1902
self.CheckerCompleted(dbus.Int16(-1),
1144
dbus.Int64(condition),
1903
dbus.Int64(
1904
# This is specific to GNU libC
1905
(exitstatus << 8)
1906
| self.last_checker_signal),
1145
1907
dbus.String(command))
1146
1147
return Client.checker_callback(self, pid, condition, command,
1148
*args, **kwargs)
1149
1908
return ret
1909
1150
1910
def start_checker(self, *args, **kwargs):
1151
old_checker = self.checker
1152
if self.checker is not None:
1153
old_checker_pid = self.checker.pid
1154
else:
1155
old_checker_pid = None
1911
old_checker_pid = getattr(self.checker, "pid", None)
1156
1912
r = Client.start_checker(self, *args, **kwargs)
1157
1913
# Only if new checker process was started
1158
1914
if (self.checker is not None
1160
1916
# Emit D-Bus signal
1161
1917
self.CheckerStarted(self.current_checker_command)
1162
1918
return r
1163
1919
1164
1920
def _reset_approved(self):
1165
1921
self.approved = None
1166
1922
return False
1167
1923
1168
1924
def approve(self, value=True):
1169
self.send_changedstate()
1170
1925
self.approved = value
1171
gobject.timeout_add(timedelta_to_milliseconds
1172
(self.approval_duration),
1173
self._reset_approved)
1174
1175
1176
## D-Bus methods, signals & properties
1177
_interface = "se.recompile.Mandos.Client"
1178
1179
## Signals
1180
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
1181
1936
# CheckerCompleted - signal
1182
1937
@dbus.service.signal(_interface, signature="nxs")
1183
1938
def CheckerCompleted(self, exitcode, waitstatus, command):
1184
1939
"D-Bus signal"
1185
1940
pass
1186
1941
1187
1942
# CheckerStarted - signal
1188
1943
@dbus.service.signal(_interface, signature="s")
1189
1944
def CheckerStarted(self, command):
1190
1945
"D-Bus signal"
1191
1946
pass
1192
1947
1193
1948
# PropertyChanged - signal
1949
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1194
1950
@dbus.service.signal(_interface, signature="sv")
1195
1951
def PropertyChanged(self, property, value):
1196
1952
"D-Bus signal"
1197
1953
pass
1198
1954
1199
1955
# GotSecret - signal
1200
1956
@dbus.service.signal(_interface)
1201
1957
def GotSecret(self):
1204
1960
server to mandos-client
1205
1961
"""
1206
1962
pass
1207
1963
1208
1964
# Rejected - signal
1209
1965
@dbus.service.signal(_interface, signature="s")
1210
1966
def Rejected(self, reason):
1211
1967
"D-Bus signal"
1212
1968
pass
1213
1969
1214
1970
# NeedApproval - signal
1215
1971
@dbus.service.signal(_interface, signature="tb")
1216
1972
def NeedApproval(self, timeout, default):
1217
1973
"D-Bus signal"
1218
1974
return self.need_approval()
1219
1220
# NeRwequest - signal
1221
@dbus.service.signal(_interface, signature="s")
1222
def NewRequest(self, ip):
1223
"""D-Bus signal
1224
Is sent after a client request a password.
1225
"""
1226
pass
1227
1228
## Methods
1229
1975
1976
# Methods
1977
1230
1978
# Approve - method
1231
1979
@dbus.service.method(_interface, in_signature="b")
1232
1980
def Approve(self, value):
1233
1981
self.approve(value)
1234
1982
1235
1983
# CheckedOK - method
1236
1984
@dbus.service.method(_interface)
1237
1985
def CheckedOK(self):
1238
1986
self.checked_ok()
1239
1987
1240
1988
# Enable - method
1989
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1241
1990
@dbus.service.method(_interface)
1242
1991
def Enable(self):
1243
1992
"D-Bus method"
1244
1993
self.enable()
1245
1994
1246
1995
# StartChecker - method
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1247
1997
@dbus.service.method(_interface)
1248
1998
def StartChecker(self):
1249
1999
"D-Bus method"
1250
2000
self.start_checker()
1251
2001
1252
2002
# Disable - method
2003
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1253
2004
@dbus.service.method(_interface)
1254
2005
def Disable(self):
1255
2006
"D-Bus method"
1256
2007
self.disable()
1257
2008
1258
2009
# StopChecker - method
2010
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1259
2011
@dbus.service.method(_interface)
1260
2012
def StopChecker(self):
1261
2013
self.stop_checker()
1262
1263
## Properties
1264
2014
2015
# Properties
2016
1265
2017
# ApprovalPending - property
1266
2018
@dbus_service_property(_interface, signature="b", access="read")
1267
2019
def ApprovalPending_dbus_property(self):
1268
2020
return dbus.Boolean(bool(self.approvals_pending))
1269
2021
1270
2022
# ApprovedByDefault - property
1271
@dbus_service_property(_interface, signature="b",
2023
@dbus_service_property(_interface,
2024
signature="b",
1272
2025
access="readwrite")
1273
2026
def ApprovedByDefault_dbus_property(self, value=None):
1274
2027
if value is None: # get
1275
2028
return dbus.Boolean(self.approved_by_default)
1276
2029
self.approved_by_default = bool(value)
1277
2030
1278
2031
# ApprovalDelay - property
1279
@dbus_service_property(_interface, signature="t",
2032
@dbus_service_property(_interface,
2033
signature="t",
1280
2034
access="readwrite")
1281
2035
def ApprovalDelay_dbus_property(self, value=None):
1282
2036
if value is None: # get
1283
return dbus.UInt64(self.approval_delay_milliseconds())
2037
return dbus.UInt64(self.approval_delay.total_seconds()
2038
* 1000)
1284
2039
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1285
2040
1286
2041
# ApprovalDuration - property
1287
@dbus_service_property(_interface, signature="t",
2042
@dbus_service_property(_interface,
2043
signature="t",
1288
2044
access="readwrite")
1289
2045
def ApprovalDuration_dbus_property(self, value=None):
1290
2046
if value is None: # get
1291
return dbus.UInt64(timedelta_to_milliseconds(
1292
self.approval_duration))
2047
return dbus.UInt64(self.approval_duration.total_seconds()
2048
* 1000)
1293
2049
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1294
2050
1295
2051
# Name - property
2052
@dbus_annotations(
2053
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1296
2054
@dbus_service_property(_interface, signature="s", access="read")
1297
2055
def Name_dbus_property(self):
1298
2056
return dbus.String(self.name)
1299
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
1300
2065
# Fingerprint - property
2066
@dbus_annotations(
2067
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1301
2068
@dbus_service_property(_interface, signature="s", access="read")
1302
2069
def Fingerprint_dbus_property(self):
1303
2070
return dbus.String(self.fingerprint)
1304
2071
1305
2072
# Host - property
1306
@dbus_service_property(_interface, signature="s",
2073
@dbus_service_property(_interface,
2074
signature="s",
1307
2075
access="readwrite")
1308
2076
def Host_dbus_property(self, value=None):
1309
2077
if value is None: # get
1310
2078
return dbus.String(self.host)
1311
self.host = unicode(value)
1312
2079
self.host = str(value)
2080
1313
2081
# Created - property
2082
@dbus_annotations(
2083
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1314
2084
@dbus_service_property(_interface, signature="s", access="read")
1315
2085
def Created_dbus_property(self):
1316
2086
return datetime_to_dbus(self.created)
1317
2087
1318
2088
# LastEnabled - property
1319
2089
@dbus_service_property(_interface, signature="s", access="read")
1320
2090
def LastEnabled_dbus_property(self):
1321
2091
return datetime_to_dbus(self.last_enabled)
1322
2092
1323
2093
# Enabled - property
1324
@dbus_service_property(_interface, signature="b",
2094
@dbus_service_property(_interface,
2095
signature="b",
1325
2096
access="readwrite")
1326
2097
def Enabled_dbus_property(self, value=None):
1327
2098
if value is None: # get
1330
2101
self.enable()
1331
2102
else:
1332
2103
self.disable()
1333
2104
1334
2105
# LastCheckedOK - property
1335
@dbus_service_property(_interface, signature="s",
2106
@dbus_service_property(_interface,
2107
signature="s",
1336
2108
access="readwrite")
1337
2109
def LastCheckedOK_dbus_property(self, value=None):
1338
2110
if value is not None:
1339
2111
self.checked_ok()
1340
2112
return
1341
2113
return datetime_to_dbus(self.last_checked_ok)
1342
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
1343
2120
# Expires - property
1344
2121
@dbus_service_property(_interface, signature="s", access="read")
1345
2122
def Expires_dbus_property(self):
1346
2123
return datetime_to_dbus(self.expires)
1347
2124
1348
2125
# LastApprovalRequest - property
1349
2126
@dbus_service_property(_interface, signature="s", access="read")
1350
2127
def LastApprovalRequest_dbus_property(self):
1351
2128
return datetime_to_dbus(self.last_approval_request)
1352
2129
1353
2130
# Timeout - property
1354
@dbus_service_property(_interface, signature="t",
2131
@dbus_service_property(_interface,
2132
signature="t",
1355
2133
access="readwrite")
1356
2134
def Timeout_dbus_property(self, value=None):
1357
2135
if value is None: # get
1358
return dbus.UInt64(self.timeout_milliseconds())
2136
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2137
old_timeout = self.timeout
1359
2138
self.timeout = datetime.timedelta(0, 0, 0, value)
1360
if getattr(self, "disable_initiator_tag", None) is None:
1361
return
1362
# Reschedule timeout
1363
gobject.source_remove(self.disable_initiator_tag)
1364
self.disable_initiator_tag = None
1365
self.expires = None
1366
time_to_die = timedelta_to_milliseconds((self
1367
.last_checked_ok
1368
+ self.timeout)
1369
- datetime.datetime
1370
.utcnow())
1371
if time_to_die <= 0:
1372
# The timeout has passed
1373
self.disable()
1374
else:
1375
self.expires = (datetime.datetime.utcnow()
1376
+ datetime.timedelta(milliseconds =
1377
time_to_die))
1378
self.disable_initiator_tag = (gobject.timeout_add
1379
(time_to_die, self.disable))
1380
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
1381
2155
# ExtendedTimeout - property
1382
@dbus_service_property(_interface, signature="t",
2156
@dbus_service_property(_interface,
2157
signature="t",
1383
2158
access="readwrite")
1384
2159
def ExtendedTimeout_dbus_property(self, value=None):
1385
2160
if value is None: # get
1386
return dbus.UInt64(self.extended_timeout_milliseconds())
2161
return dbus.UInt64(self.extended_timeout.total_seconds()
2162
* 1000)
1387
2163
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1388
2164
1389
2165
# Interval - property
1390
@dbus_service_property(_interface, signature="t",
2166
@dbus_service_property(_interface,
2167
signature="t",
1391
2168
access="readwrite")
1392
2169
def Interval_dbus_property(self, value=None):
1393
2170
if value is None: # get
1394
return dbus.UInt64(self.interval_milliseconds())
2171
return dbus.UInt64(self.interval.total_seconds() * 1000)
1395
2172
self.interval = datetime.timedelta(0, 0, 0, value)
1396
2173
if getattr(self, "checker_initiator_tag", None) is None:
1397
2174
return
1398
2175
if self.enabled:
1399
2176
# Reschedule checker run
1400
gobject.source_remove(self.checker_initiator_tag)
1401
self.checker_initiator_tag = (gobject.timeout_add
1402
(value, self.start_checker))
1403
self.start_checker() # Start one now, too
1404
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
1405
2182
# Checker - property
1406
@dbus_service_property(_interface, signature="s",
2183
@dbus_service_property(_interface,
2184
signature="s",
1407
2185
access="readwrite")
1408
2186
def Checker_dbus_property(self, value=None):
1409
2187
if value is None: # get
1410
2188
return dbus.String(self.checker_command)
1411
self.checker_command = unicode(value)
1412
2189
self.checker_command = str(value)
2190
1413
2191
# CheckerRunning - property
1414
@dbus_service_property(_interface, signature="b",
2192
@dbus_service_property(_interface,
2193
signature="b",
1415
2194
access="readwrite")
1416
2195
def CheckerRunning_dbus_property(self, value=None):
1417
2196
if value is None: # get
1420
2199
self.start_checker()
1421
2200
else:
1422
2201
self.stop_checker()
1423
2202
1424
2203
# ObjectPath - property
2204
@dbus_annotations(
2205
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2206
"org.freedesktop.DBus.Deprecated": "true"})
1425
2207
@dbus_service_property(_interface, signature="o", access="read")
1426
2208
def ObjectPath_dbus_property(self):
1427
return self.dbus_object_path # is already a dbus.ObjectPath
1428
2209
return self.dbus_object_path # is already a dbus.ObjectPath
2210
1429
2211
# Secret = property
1430
@dbus_service_property(_interface, signature="ay",
1431
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)
1432
2219
def Secret_dbus_property(self, value):
1433
self.secret = str(value)
1434
2220
self.secret = bytes(value)
2221
1435
2222
del _interface
1436
2223
1437
2224
1438
class ProxyClient(object):
1439
def __init__(self, child_pipe, fpr, address):
2225
class ProxyClient:
2226
def __init__(self, child_pipe, key_id, fpr, address):
1440
2227
self._pipe = child_pipe
1441
self._pipe.send(('init', fpr, address))
2228
self._pipe.send(('init', key_id, fpr, address))
1442
2229
if not self._pipe.recv():
1443
raise KeyError()
1444
2230
raise KeyError(key_id or fpr)
2231
1445
2232
def __getattribute__(self, name):
1446
2233
if name == '_pipe':
1447
2234
return super(ProxyClient, self).__getattribute__(name)
1450
2237
if data[0] == 'data':
1451
2238
return data[1]
1452
2239
if data[0] == 'function':
2240
1453
2241
def func(*args, **kwargs):
1454
2242
self._pipe.send(('funcall', name, args, kwargs))
1455
2243
return self._pipe.recv()[1]
2244
1456
2245
return func
1457
2246
1458
2247
def __setattr__(self, name, value):
1459
2248
if name == '_pipe':
1460
2249
return super(ProxyClient, self).__setattr__(name, value)
1461
2250
self._pipe.send(('setattr', name, value))
1462
2251
1463
2252
1464
class ClientDBusTransitional(ClientDBus):
1465
__metaclass__ = AlternateDBusNamesMetaclass
1466
1467
1468
2253
class ClientHandler(socketserver.BaseRequestHandler, object):
1469
2254
"""A class to handle client connections.
1470
2255
1471
2256
Instantiated once for each connection to handle it.
1472
2257
Note: This will run in its own forked process."""
1473
2258
1474
2259
def handle(self):
1475
2260
with contextlib.closing(self.server.child_pipe) as child_pipe:
1476
2261
logger.info("TCP connection from: %s",
1477
unicode(self.client_address))
2262
str(self.client_address))
1478
2263
logger.debug("Pipe FD: %d",
1479
2264
self.server.child_pipe.fileno())
1480
1481
session = (gnutls.connection
1482
.ClientSession(self.request,
1483
gnutls.connection
1484
.X509Credentials()))
1485
1486
# Note: gnutls.connection.X509Credentials is really a
1487
# generic GnuTLS certificate credentials object so long as
1488
# no X.509 keys are added to it. Therefore, we can use it
1489
# here despite using OpenPGP certificates.
1490
1491
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1492
# "+AES-256-CBC", "+SHA1",
1493
# "+COMP-NULL", "+CTYPE-OPENPGP",
1494
# "+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"))
1495
2272
# Use a fallback default, since this MUST be set.
1496
2273
priority = self.server.gnutls_priority
1497
2274
if priority is None:
1498
2275
priority = "NORMAL"
1499
(gnutls.library.functions
1500
.gnutls_priority_set_direct(session._c_object,
1501
priority, None))
1502
2276
gnutls.priority_set_direct(session._c_object,
2277
priority.encode("utf-8"),
2278
None)
2279
1503
2280
# Start communication using the Mandos protocol
1504
2281
# Get protocol number
1505
2282
line = self.request.makefile().readline()
1506
2283
logger.debug("Protocol version: %r", line)
1507
2284
try:
1508
2285
if int(line.strip().split()[0]) > 1:
1509
raise RuntimeError
2286
raise RuntimeError(line)
1510
2287
except (ValueError, IndexError, RuntimeError) as error:
1511
2288
logger.error("Unknown protocol version: %s", error)
1512
2289
return
1513
2290
1514
2291
# Start GnuTLS connection
1515
2292
try:
1516
2293
session.handshake()
1517
except gnutls.errors.GNUTLSError as error:
2294
except gnutls.Error as error:
1518
2295
logger.warning("Handshake failed: %s", error)
1519
2296
# Do not run session.bye() here: the session is not
1520
2297
# established. Just abandon the request.
1521
2298
return
1522
2299
logger.debug("Handshake succeeded")
1523
2300
1524
2301
approval_required = False
1525
2302
try:
1526
try:
1527
fpr = self.fingerprint(self.peer_certificate
1528
(session))
1529
except (TypeError,
1530
gnutls.errors.GNUTLSError) as error:
1531
logger.warning("Bad certificate: %s", error)
1532
return
1533
logger.debug("Fingerprint: %s", fpr)
1534
1535
try:
1536
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,
1537
2325
self.client_address)
1538
2326
except KeyError:
1539
2327
return
1540
1541
if self.server.use_dbus:
1542
# Emit D-Bus signal
1543
client.NewRequest(str(self.client_address))
1544
2328
1545
2329
if client.approval_delay:
1546
2330
delay = client.approval_delay
1547
2331
client.approvals_pending += 1
1548
2332
approval_required = True
1549
2333
1550
2334
while True:
1551
2335
if not client.enabled:
1552
2336
logger.info("Client %s is disabled",
1553
client.name)
2337
client.name)
1554
2338
if self.server.use_dbus:
1555
2339
# Emit D-Bus signal
1556
2340
client.Rejected("Disabled")
1557
2341
return
1558
2342
1559
2343
if client.approved or not client.approval_delay:
1560
#We are approved or approval is disabled
2344
# We are approved or approval is disabled
1561
2345
break
1562
2346
elif client.approved is None:
1563
2347
logger.info("Client %s needs approval",
1565
2349
if self.server.use_dbus:
1566
2350
# Emit D-Bus signal
1567
2351
client.NeedApproval(
1568
client.approval_delay_milliseconds(),
1569
client.approved_by_default)
2352
client.approval_delay.total_seconds()
2353
* 1000, client.approved_by_default)
1570
2354
else:
1571
2355
logger.warning("Client %s was not approved",
1572
2356
client.name)
1574
2358
# Emit D-Bus signal
1575
2359
client.Rejected("Denied")
1576
2360
return
1577
1578
#wait until timeout or approved
2361
2362
# wait until timeout or approved
1579
2363
time = datetime.datetime.now()
1580
2364
client.changedstate.acquire()
1581
(client.changedstate.wait
1582
(float(client.timedelta_to_milliseconds(delay)
1583
/ 1000)))
2365
client.changedstate.wait(delay.total_seconds())
1584
2366
client.changedstate.release()
1585
2367
time2 = datetime.datetime.now()
1586
2368
if (time2 - time) >= delay:
1596
2378
break
1597
2379
else:
1598
2380
delay -= time2 - time
1599
1600
sent_size = 0
1601
while sent_size < len(client.secret):
1602
try:
1603
sent = session.send(client.secret[sent_size:])
1604
except gnutls.errors.GNUTLSError as error:
1605
logger.warning("gnutls send failed")
1606
return
1607
logger.debug("Sent: %d, remaining: %d",
1608
sent, len(client.secret)
1609
- (sent_size + sent))
1610
sent_size += sent
1611
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
1612
2389
logger.info("Sending secret to %s", client.name)
1613
2390
# bump the timeout using extended_timeout
1614
client.checked_ok(client.extended_timeout)
2391
client.bump_timeout(client.extended_timeout)
1615
2392
if self.server.use_dbus:
1616
2393
# Emit D-Bus signal
1617
2394
client.GotSecret()
1618
2395
1619
2396
finally:
1620
2397
if approval_required:
1621
2398
client.approvals_pending -= 1
1622
2399
try:
1623
2400
session.bye()
1624
except gnutls.errors.GNUTLSError as error:
1625
logger.warning("GnuTLS bye failed")
1626
2401
except gnutls.Error as error:
2402
logger.warning("GnuTLS bye failed",
2403
exc_info=error)
2404
1627
2405
@staticmethod
1628
2406
def peer_certificate(session):
1629
"Return the peer's OpenPGP certificate as a bytestring"
1630
# If not an OpenPGP certificate...
1631
if (gnutls.library.functions
1632
.gnutls_certificate_type_get(session._c_object)
1633
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1634
# ...do the normal thing
1635
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""
1636
2423
list_size = ctypes.c_uint(1)
1637
cert_list = (gnutls.library.functions
1638
.gnutls_certificate_get_peers
2424
cert_list = (gnutls.certificate_get_peers
1639
2425
(session._c_object, ctypes.byref(list_size)))
1640
2426
if not bool(cert_list) and list_size.value != 0:
1641
raise gnutls.errors.GNUTLSError("error getting peer"
1642
" certificate")
2427
raise gnutls.Error("error getting peer certificate")
1643
2428
if list_size.value == 0:
1644
2429
return None
1645
2430
cert = cert_list[0]
1646
2431
return ctypes.string_at(cert.data, cert.size)
1647
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
1648
2467
@staticmethod
1649
2468
def fingerprint(openpgp):
1650
2469
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1651
2470
# New GnuTLS "datum" with the OpenPGP public key
1652
datum = (gnutls.library.types
1653
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1654
ctypes.POINTER
1655
(ctypes.c_ubyte)),
1656
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)))
1657
2475
# New empty GnuTLS certificate
1658
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1659
(gnutls.library.functions
1660
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2476
crt = gnutls.openpgp_crt_t()
2477
gnutls.openpgp_crt_init(ctypes.byref(crt))
1661
2478
# Import the OpenPGP public key into the certificate
1662
(gnutls.library.functions
1663
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1664
gnutls.library.constants
1665
.GNUTLS_OPENPGP_FMT_RAW))
2479
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2480
gnutls.OPENPGP_FMT_RAW)
1666
2481
# Verify the self signature in the key
1667
2482
crtverify = ctypes.c_uint()
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_verify_self(crt, 0,
1670
ctypes.byref(crtverify)))
2483
gnutls.openpgp_crt_verify_self(crt, 0,
2484
ctypes.byref(crtverify))
1671
2485
if crtverify.value != 0:
1672
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1673
raise (gnutls.errors.CertificateSecurityError
1674
("Verify failed"))
2486
gnutls.openpgp_crt_deinit(crt)
2487
raise gnutls.CertificateSecurityError(code
2488
=crtverify.value)
1675
2489
# New buffer for the fingerprint
1676
2490
buf = ctypes.create_string_buffer(20)
1677
2491
buf_len = ctypes.c_size_t()
1678
2492
# Get the fingerprint from the certificate into the buffer
1679
(gnutls.library.functions
1680
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1681
ctypes.byref(buf_len)))
2493
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2494
ctypes.byref(buf_len))
1682
2495
# Deinit the certificate
1683
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2496
gnutls.openpgp_crt_deinit(crt)
1684
2497
# Convert the buffer to a Python bytestring
1685
2498
fpr = ctypes.string_at(buf, buf_len.value)
1686
2499
# Convert the bytestring to hexadecimal notation
1688
2501
return hex_fpr
1689
2502
1690
2503
1691
class MultiprocessingMixIn(object):
2504
class MultiprocessingMixIn:
1692
2505
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2506
1693
2507
def sub_process_main(self, request, address):
1694
2508
try:
1695
2509
self.finish_request(request, address)
1696
2510
except Exception:
1697
2511
self.handle_error(request, address)
1698
2512
self.close_request(request)
1699
2513
1700
2514
def process_request(self, request, address):
1701
2515
"""Start a new process to process the request."""
1702
proc = multiprocessing.Process(target = self.sub_process_main,
1703
args = (request,
1704
address))
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
1705
2518
proc.start()
1706
2519
return proc
1707
2520
1708
2521
1709
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1710
2523
""" adds a pipe to the MixIn """
2524
1711
2525
def process_request(self, request, client_address):
1712
2526
"""Overrides and wraps the original process_request().
1713
2527
1714
2528
This function creates a new pipe in self.pipe
1715
2529
"""
1716
2530
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1717
2531
1718
2532
proc = MultiprocessingMixIn.process_request(self, request,
1719
2533
client_address)
1720
2534
self.child_pipe.close()
1721
2535
self.add_pipe(parent_pipe, proc)
1722
2536
1723
2537
def add_pipe(self, parent_pipe, proc):
1724
2538
"""Dummy function; override as necessary"""
1725
raise NotImplementedError
2539
raise NotImplementedError()
1726
2540
1727
2541
1728
2542
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1729
socketserver.TCPServer, object):
2543
socketserver.TCPServer):
1730
2544
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1731
2545
1732
2546
Attributes:
1733
2547
enabled: Boolean; whether this server is activated yet
1734
2548
interface: None or a network interface name (string)
1735
2549
use_ipv6: Boolean; to use IPv6 or not
1736
2550
"""
2551
1737
2552
def __init__(self, server_address, RequestHandlerClass,
1738
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
"""
1739
2559
self.interface = interface
1740
2560
if use_ipv6:
1741
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.
1742
2589
socketserver.TCPServer.__init__(self, server_address,
1743
2590
RequestHandlerClass)
2591
1744
2592
def server_bind(self):
1745
2593
"""This overrides the normal server_bind() function
1746
2594
to bind to an interface if one was specified, and also NOT to
1747
2595
bind to an address or port if they were not specified."""
2596
global SO_BINDTODEVICE
1748
2597
if self.interface is not None:
1749
2598
if SO_BINDTODEVICE is None:
1750
logger.error("SO_BINDTODEVICE does not exist;"
1751
" cannot bind to interface %s",
1752
self.interface)
1753
else:
1754
try:
1755
self.socket.setsockopt(socket.SOL_SOCKET,
1756
SO_BINDTODEVICE,
1757
str(self.interface
1758
+ '\0'))
1759
except socket.error as error:
1760
if error[0] == errno.EPERM:
1761
logger.error("No permission to"
1762
" bind to interface %s",
1763
self.interface)
1764
elif error[0] == errno.ENOPROTOOPT:
1765
logger.error("SO_BINDTODEVICE not available;"
1766
" cannot bind to interface %s",
1767
self.interface)
1768
else:
1769
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
1770
2620
# Only bind(2) the socket if we really need to.
1771
2621
if self.server_address[0] or self.server_address[1]:
2622
if self.server_address[1]:
2623
self.allow_reuse_address = True
1772
2624
if not self.server_address[0]:
1773
2625
if self.address_family == socket.AF_INET6:
1774
any_address = "::" # in6addr_any
2626
any_address = "::" # in6addr_any
1775
2627
else:
1776
any_address = socket.INADDR_ANY
2628
any_address = "0.0.0.0" # INADDR_ANY
1777
2629
self.server_address = (any_address,
1778
2630
self.server_address[1])
1779
2631
elif not self.server_address[1]:
1780
self.server_address = (self.server_address[0],
1781
0)
2632
self.server_address = (self.server_address[0], 0)
1782
2633
# if self.interface:
1783
2634
# self.server_address = (self.server_address[0],
1784
2635
# 0, # port
1790
2641
1791
2642
class MandosServer(IPv6_TCPServer):
1792
2643
"""Mandos server.
1793
2644
1794
2645
Attributes:
1795
2646
clients: set of Client objects
1796
2647
gnutls_priority GnuTLS priority string
1797
2648
use_dbus: Boolean; to emit D-Bus signals or not
1798
1799
Assumes a gobject.MainLoop event loop.
2649
2650
Assumes a GLib.MainLoop event loop.
1800
2651
"""
2652
1801
2653
def __init__(self, server_address, RequestHandlerClass,
1802
interface=None, use_ipv6=True, clients=None,
1803
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):
1804
2660
self.enabled = False
1805
2661
self.clients = clients
1806
2662
if self.clients is None:
1809
2665
self.gnutls_priority = gnutls_priority
1810
2666
IPv6_TCPServer.__init__(self, server_address,
1811
2667
RequestHandlerClass,
1812
interface = interface,
1813
use_ipv6 = use_ipv6)
2668
interface=interface,
2669
use_ipv6=use_ipv6,
2670
socketfd=socketfd)
2671
1814
2672
def server_activate(self):
1815
2673
if self.enabled:
1816
2674
return socketserver.TCPServer.server_activate(self)
1817
2675
1818
2676
def enable(self):
1819
2677
self.enabled = True
1820
2678
1821
2679
def add_pipe(self, parent_pipe, proc):
1822
2680
# Call "handle_ipc" for both data and EOF events
1823
gobject.io_add_watch(parent_pipe.fileno(),
1824
gobject.IO_IN | gobject.IO_HUP,
1825
functools.partial(self.handle_ipc,
1826
parent_pipe =
1827
parent_pipe,
1828
proc = proc))
1829
1830
def handle_ipc(self, source, condition, parent_pipe=None,
1831
proc = None, client_object=None):
1832
condition_names = {
1833
gobject.IO_IN: "IN", # There is data to read.
1834
gobject.IO_OUT: "OUT", # Data can be written (without
1835
# blocking).
1836
gobject.IO_PRI: "PRI", # There is urgent data to read.
1837
gobject.IO_ERR: "ERR", # Error condition.
1838
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1839
# broken, usually for pipes and
1840
# sockets).
1841
}
1842
conditions_string = ' | '.join(name
1843
for cond, name in
1844
condition_names.iteritems()
1845
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):
1846
2692
# error, or the other end of multiprocessing.Pipe has closed
1847
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2693
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1848
2694
# Wait for other process to exit
1849
2695
proc.join()
1850
2696
return False
1851
2697
1852
2698
# Read a request from the child
1853
2699
request = parent_pipe.recv()
1854
2700
command = request[0]
1855
2701
1856
2702
if command == 'init':
1857
fpr = request[1]
1858
address = request[2]
1859
1860
for c in self.clients.itervalues():
1861
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:
1862
2714
client = c
1863
2715
break
1864
2716
else:
1865
logger.info("Client not found for fingerprint: %s, ad"
1866
"dress: %s", fpr, address)
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
1867
2719
if self.use_dbus:
1868
2720
# Emit D-Bus signal
1869
mandos_dbus_service.ClientNotFound(fpr,
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
1870
2722
address[0])
1871
2723
parent_pipe.send(False)
1872
2724
return False
1873
1874
gobject.io_add_watch(parent_pipe.fileno(),
1875
gobject.IO_IN | gobject.IO_HUP,
1876
functools.partial(self.handle_ipc,
1877
parent_pipe =
1878
parent_pipe,
1879
proc = proc,
1880
client_object =
1881
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))
1882
2733
parent_pipe.send(True)
1883
2734
# remove the old hook in favor of the new above hook on
1884
2735
# same fileno
1887
2738
funcname = request[1]
1888
2739
args = request[2]
1889
2740
kwargs = request[3]
1890
2741
1891
2742
parent_pipe.send(('data', getattr(client_object,
1892
2743
funcname)(*args,
1893
**kwargs)))
1894
2744
**kwargs)))
2745
1895
2746
if command == 'getattr':
1896
2747
attrname = request[1]
1897
if callable(client_object.__getattribute__(attrname)):
1898
parent_pipe.send(('function',))
2748
if isinstance(client_object.__getattribute__(attrname),
2749
collections.Callable):
2750
parent_pipe.send(('function', ))
1899
2751
else:
1900
parent_pipe.send(('data', client_object
1901
.__getattribute__(attrname)))
1902
2752
parent_pipe.send((
2753
'data', client_object.__getattribute__(attrname)))
2754
1903
2755
if command == 'setattr':
1904
2756
attrname = request[1]
1905
2757
value = request[2]
1906
2758
setattr(client_object, attrname, value)
1907
2759
1908
2760
return True
1909
2761
1910
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
1911
2862
def string_to_delta(interval):
1912
2863
"""Parse a string and return a datetime.timedelta
1913
1914
>>> string_to_delta('7d')
1915
datetime.timedelta(7)
1916
>>> string_to_delta('60s')
1917
datetime.timedelta(0, 60)
1918
>>> string_to_delta('60m')
1919
datetime.timedelta(0, 3600)
1920
>>> string_to_delta('24h')
1921
datetime.timedelta(1)
1922
>>> string_to_delta('1w')
1923
datetime.timedelta(7)
1924
>>> string_to_delta('5m 30s')
1925
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
1926
2877
"""
2878
2879
try:
2880
return rfc3339_duration_to_delta(interval)
2881
except ValueError:
2882
pass
2883
1927
2884
timevalue = datetime.timedelta(0)
1928
2885
for s in interval.split():
1929
2886
try:
1930
suffix = unicode(s[-1])
2887
suffix = s[-1]
1931
2888
value = int(s[:-1])
1932
2889
if suffix == "d":
1933
2890
delta = datetime.timedelta(value)
1940
2897
elif suffix == "w":
1941
2898
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1942
2899
else:
1943
raise ValueError("Unknown suffix %r" % suffix)
1944
except (ValueError, IndexError) as e:
2900
raise ValueError("Unknown suffix {!r}".format(suffix))
2901
except IndexError as e:
1945
2902
raise ValueError(*(e.args))
1946
2903
timevalue += delta
1947
2904
return timevalue
1948
2905
1949
2906
1950
def daemon(nochdir = False, noclose = False):
2907
def daemon(nochdir=False, noclose=False):
1951
2908
"""See daemon(3). Standard BSD Unix function.
1952
2909
1953
2910
This should really exist as os.daemon, but it doesn't (yet)."""
1954
2911
if os.fork():
1955
2912
sys.exit()
1960
2917
sys.exit()
1961
2918
if not noclose:
1962
2919
# Close all standard open file descriptors
1963
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2920
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1964
2921
if not stat.S_ISCHR(os.fstat(null).st_mode):
1965
2922
raise OSError(errno.ENODEV,
1966
"%s not a character device"
1967
% os.path.devnull)
2923
"{} not a character device"
2924
.format(os.devnull))
1968
2925
os.dup2(null, sys.stdin.fileno())
1969
2926
os.dup2(null, sys.stdout.fileno())
1970
2927
os.dup2(null, sys.stderr.fileno())
1973
2930
1974
2931
1975
2932
def main():
1976
2933
1977
2934
##################################################################
1978
2935
# Parsing of options, both command line and config file
1979
2936
1980
2937
parser = argparse.ArgumentParser()
1981
2938
parser.add_argument("-v", "--version", action="version",
1982
version = "%%(prog)s %s" % version,
2939
version="%(prog)s {}".format(version),
1983
2940
help="show version number and exit")
1984
2941
parser.add_argument("-i", "--interface", metavar="IF",
1985
2942
help="Bind to interface IF")
1991
2948
help="Run self-test")
1992
2949
parser.add_argument("--debug", action="store_true",
1993
2950
help="Debug mode; run in foreground and log"
1994
" to terminal")
2951
" to terminal", default=None)
1995
2952
parser.add_argument("--debuglevel", metavar="LEVEL",
1996
2953
help="Debug level for stdout output")
1997
2954
parser.add_argument("--priority", help="GnuTLS"
2004
2961
" files")
2005
2962
parser.add_argument("--no-dbus", action="store_false",
2006
2963
dest="use_dbus", help="Do not provide D-Bus"
2007
" system bus interface")
2964
" system bus interface", default=None)
2008
2965
parser.add_argument("--no-ipv6", action="store_false",
2009
dest="use_ipv6", help="Do not use IPv6")
2966
dest="use_ipv6", help="Do not use IPv6",
2967
default=None)
2010
2968
parser.add_argument("--no-restore", action="store_false",
2011
2969
dest="restore", help="Do not restore stored"
2012
" 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")
2013
2974
parser.add_argument("--statedir", metavar="DIR",
2014
2975
help="Directory to save/restore state in")
2015
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
2016
2982
options = parser.parse_args()
2017
2018
if options.check:
2019
import doctest
2020
doctest.testmod()
2021
sys.exit()
2022
2983
2023
2984
# Default values for config file for server-global settings
2024
server_defaults = { "interface": "",
2025
"address": "",
2026
"port": "",
2027
"debug": "False",
2028
"priority":
2029
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2030
"servicename": "Mandos",
2031
"use_dbus": "True",
2032
"use_ipv6": "True",
2033
"debuglevel": "",
2034
"restore": "True",
2035
"statedir": "/var/lib/mandos"
2036
}
2037
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
2038
3008
# Parse config file for server-global settings
2039
server_config = configparser.SafeConfigParser(server_defaults)
3009
server_config = configparser.ConfigParser(server_defaults)
2040
3010
del server_defaults
2041
server_config.read(os.path.join(options.configdir,
2042
"mandos.conf"))
2043
# 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
2044
3013
server_settings = server_config.defaults()
2045
3014
# Use the appropriate methods on the non-string config options
2046
for option in ("debug", "use_dbus", "use_ipv6"):
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
2047
3017
server_settings[option] = server_config.getboolean("DEFAULT",
2048
3018
option)
2049
3019
if server_settings["port"]:
2050
3020
server_settings["port"] = server_config.getint("DEFAULT",
2051
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"])
2052
3031
del server_config
2053
3032
2054
3033
# Override the settings from the config file with command line
2055
3034
# options, if set.
2056
3035
for option in ("interface", "address", "port", "debug",
2057
"priority", "servicename", "configdir",
2058
"use_dbus", "use_ipv6", "debuglevel", "restore",
2059
"statedir"):
3036
"priority", "servicename", "configdir", "use_dbus",
3037
"use_ipv6", "debuglevel", "restore", "statedir",
3038
"socket", "foreground", "zeroconf"):
2060
3039
value = getattr(options, option)
2061
3040
if value is not None:
2062
3041
server_settings[option] = value
2063
3042
del options
2064
3043
# Force all strings to be unicode
2065
3044
for option in server_settings.keys():
2066
if type(server_settings[option]) is str:
2067
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
2068
3055
# Now we have our good server settings in "server_settings"
2069
3056
2070
3057
##################################################################
2071
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
2072
3064
# For convenience
2073
3065
debug = server_settings["debug"]
2074
3066
debuglevel = server_settings["debuglevel"]
2076
3068
use_ipv6 = server_settings["use_ipv6"]
2077
3069
stored_state_path = os.path.join(server_settings["statedir"],
2078
3070
stored_state_file)
2079
3071
foreground = server_settings["foreground"]
3072
zeroconf = server_settings["zeroconf"]
3073
2080
3074
if debug:
2081
initlogger(logging.DEBUG)
3075
initlogger(debug, logging.DEBUG)
2082
3076
else:
2083
3077
if not debuglevel:
2084
initlogger()
3078
initlogger(debug)
2085
3079
else:
2086
3080
level = getattr(logging, debuglevel.upper())
2087
initlogger(level)
2088
3081
initlogger(debug, level)
3082
2089
3083
if server_settings["servicename"] != "Mandos":
2090
syslogger.setFormatter(logging.Formatter
2091
('Mandos (%s) [%%(process)d]:'
2092
' %%(levelname)s: %%(message)s'
2093
% server_settings["servicename"]))
2094
3084
syslogger.setFormatter(
3085
logging.Formatter('Mandos ({}) [%(process)d]:'
3086
' %(levelname)s: %(message)s'.format(
3087
server_settings["servicename"])))
3088
2095
3089
# Parse config file with clients
2096
client_config = configparser.SafeConfigParser(Client.client_defaults)
3090
client_config = configparser.ConfigParser(Client.client_defaults)
2097
3091
client_config.read(os.path.join(server_settings["configdir"],
2098
3092
"clients.conf"))
2099
3093
2100
3094
global mandos_dbus_service
2101
3095
mandos_dbus_service = None
2102
2103
tcp_server = MandosServer((server_settings["address"],
2104
server_settings["port"]),
2105
ClientHandler,
2106
interface=(server_settings["interface"]
2107
or None),
2108
use_ipv6=use_ipv6,
2109
gnutls_priority=
2110
server_settings["priority"],
2111
use_dbus=use_dbus)
2112
if not debug:
2113
pidfilename = "/var/run/mandos.pid"
2114
try:
2115
pidfile = open(pidfilename, "w")
2116
except IOError:
2117
logger.error("Could not open file %r", pidfilename)
2118
2119
try:
2120
uid = pwd.getpwnam("_mandos").pw_uid
2121
gid = pwd.getpwnam("_mandos").pw_gid
2122
except KeyError:
2123
try:
2124
uid = pwd.getpwnam("mandos").pw_uid
2125
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
2126
3126
except KeyError:
2127
try:
2128
uid = pwd.getpwnam("nobody").pw_uid
2129
gid = pwd.getpwnam("nobody").pw_gid
2130
except KeyError:
2131
uid = 65534
2132
gid = 65534
3127
continue
3128
else:
3129
uid = 65534
3130
gid = 65534
2133
3131
try:
2134
3132
os.setgid(gid)
2135
3133
os.setuid(uid)
3134
if debug:
3135
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3136
gid))
2136
3137
except OSError as error:
2137
if error[0] != errno.EPERM:
2138
raise error
2139
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
2140
3143
if debug:
2141
3144
# Enable all possible GnuTLS debugging
2142
3145
2143
3146
# "Use a log level over 10 to enable all debugging options."
2144
3147
# - GnuTLS manual
2145
gnutls.library.functions.gnutls_global_set_log_level(11)
2146
2147
@gnutls.library.types.gnutls_log_func
3148
gnutls.global_set_log_level(11)
3149
3150
@gnutls.log_func
2148
3151
def debug_gnutls(level, string):
2149
3152
logger.debug("GnuTLS: %s", string[:-1])
2150
2151
(gnutls.library.functions
2152
.gnutls_global_set_log_function(debug_gnutls))
2153
3153
3154
gnutls.global_set_log_function(debug_gnutls)
3155
2154
3156
# Redirect stdin so all checkers get /dev/null
2155
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3157
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2156
3158
os.dup2(null, sys.stdin.fileno())
2157
3159
if null > 2:
2158
3160
os.close(null)
2159
else:
2160
# No console logging
2161
logger.removeHandler(console)
2162
3161
2163
3162
# Need to fork before connecting to D-Bus
2164
if not debug:
3163
if not foreground:
2165
3164
# Close all input and output, do double fork, etc.
2166
3165
daemon()
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:
3285
logger.warning("Could not load persistent state: "
3286
"EOFError:",
3287
exc_info=e)
3288
2220
3289
with PGPEngine() as pgp:
2221
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
2222
3295
# Decide which value to use after restoring saved state.
2223
3296
# We have three different values: Old config file,
2224
3297
# new config file, and saved state.
2229
3302
# For each value in new config, check if it
2230
3303
# differs from the old config value (Except for
2231
3304
# the "secret" attribute)
2232
if (name != "secret" and
2233
value != old_client_settings[client_name]
2234
[name]):
3305
if (name != "secret"
3306
and (value !=
3307
old_client_settings[client_name][name])):
2235
3308
client[name] = value
2236
3309
except KeyError:
2237
3310
pass
2238
3311
2239
3312
# Clients who has passed its expire date can still be
2240
# enabled if its last checker was successful. Clients
2241
# whose checker failed before we stored its state is
2242
# 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.
2243
3317
if client["enabled"]:
2244
3318
if datetime.datetime.utcnow() >= client["expires"]:
2245
3319
if not client["last_checked_ok"]:
2246
3320
logger.warning(
2247
"disabling client {0} - Client never "
2248
"performed a successfull checker"
2249
.format(client["name"]))
3321
"disabling client {} - Client never "
3322
"performed a successful checker".format(
3323
client_name))
2250
3324
client["enabled"] = False
2251
3325
elif client["last_checker_status"] != 0:
2252
3326
logger.warning(
2253
"disabling client {0} - Client "
2254
"last checker failed with error code {1}"
2255
.format(client["name"],
2256
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"]))
2257
3332
client["enabled"] = False
2258
3333
else:
2259
client["expires"] = (datetime.datetime
2260
.utcnow()
2261
+ client["timeout"])
2262
3334
client["expires"] = (
3335
datetime.datetime.utcnow()
3336
+ client["timeout"])
3337
logger.debug("Last checker succeeded,"
3338
" keeping {} enabled".format(
3339
client_name))
2263
3340
try:
2264
client["secret"] = (
2265
pgp.decrypt(client["encrypted_secret"],
2266
client_settings[client_name]
2267
["secret"]))
3341
client["secret"] = pgp.decrypt(
3342
client["encrypted_secret"],
3343
client_settings[client_name]["secret"])
2268
3344
except PGPError:
2269
3345
# If decryption fails, we use secret from new settings
2270
logger.debug("Failed to decrypt {0} old secret"
2271
.format(client_name))
2272
client["secret"] = (
2273
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"])
2274
3350
2275
2276
3351
# Add/remove clients based on new changes made to config
2277
for client_name in set(old_client_settings) - set(client_settings):
3352
for client_name in (set(old_client_settings)
3353
- set(client_settings)):
2278
3354
del clients_data[client_name]
2279
for client_name in set(client_settings) - set(old_client_settings):
3355
for client_name in (set(client_settings)
3356
- set(old_client_settings)):
2280
3357
clients_data[client_name] = client_settings[client_name]
2281
3358
2282
# Create clients all clients
2283
for client_name, client in clients_data.iteritems():
3359
# Create all client objects
3360
for client_name, client in clients_data.items():
2284
3361
tcp_server.clients[client_name] = client_class(
2285
name = client_name, settings = client)
2286
3362
name=client_name,
3363
settings=client,
3364
server_settings=server_settings)
3365
2287
3366
if not tcp_server.clients:
2288
3367
logger.warning("No clients defined")
2289
2290
if not debug:
2291
try:
2292
with pidfile:
2293
pid = os.getpid()
2294
pidfile.write(str(pid) + "\n".encode("utf-8"))
2295
del pidfile
2296
except IOError:
2297
logger.error("Could not write to file %r with PID %d",
2298
pidfilename, pid)
2299
except NameError:
2300
# "pidfile" was never created
2301
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
2302
3379
del pidfilename
2303
signal.signal(signal.SIGINT, signal.SIG_IGN)
2304
2305
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2306
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2307
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
2308
3385
if use_dbus:
2309
class MandosDBusService(dbus.service.Object):
3386
3387
@alternate_dbus_interfaces(
3388
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3389
class MandosDBusService(DBusObjectWithObjectManager):
2310
3390
"""A D-Bus proxy object"""
3391
2311
3392
def __init__(self):
2312
3393
dbus.service.Object.__init__(self, bus, "/")
3394
2313
3395
_interface = "se.recompile.Mandos"
2314
3396
2315
3397
@dbus.service.signal(_interface, signature="o")
2316
3398
def ClientAdded(self, objpath):
2317
3399
"D-Bus signal"
2318
3400
pass
2319
3401
2320
3402
@dbus.service.signal(_interface, signature="ss")
2321
def ClientNotFound(self, fingerprint, address):
3403
def ClientNotFound(self, key_id, address):
2322
3404
"D-Bus signal"
2323
3405
pass
2324
3406
3407
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3408
"true"})
2325
3409
@dbus.service.signal(_interface, signature="os")
2326
3410
def ClientRemoved(self, objpath, name):
2327
3411
"D-Bus signal"
2328
3412
pass
2329
3413
3414
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3415
"true"})
2330
3416
@dbus.service.method(_interface, out_signature="ao")
2331
3417
def GetAllClients(self):
2332
3418
"D-Bus method"
2333
return dbus.Array(c.dbus_object_path
2334
for c in
2335
tcp_server.clients.itervalues())
2336
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"})
2337
3424
@dbus.service.method(_interface,
2338
3425
out_signature="a{oa{sv}}")
2339
3426
def GetAllClientsWithProperties(self):
2340
3427
"D-Bus method"
2341
3428
return dbus.Dictionary(
2342
((c.dbus_object_path, c.GetAll(""))
2343
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()},
2344
3432
signature="oa{sv}")
2345
3433
2346
3434
@dbus.service.method(_interface, in_signature="o")
2347
3435
def RemoveClient(self, object_path):
2348
3436
"D-Bus method"
2349
for c in tcp_server.clients.itervalues():
3437
for c in tcp_server.clients.values():
2350
3438
if c.dbus_object_path == object_path:
2351
3439
del tcp_server.clients[c.name]
2352
3440
c.remove_from_connection()
2353
# Don't signal anything except ClientRemoved
3441
# Don't signal the disabling
2354
3442
c.disable(quiet=True)
2355
# Emit D-Bus signal
2356
self.ClientRemoved(object_path, c.name)
3443
# Emit D-Bus signal for removal
3444
self.client_removed_signal(c)
2357
3445
return
2358
3446
raise KeyError(object_path)
2359
3447
2360
3448
del _interface
2361
2362
class MandosDBusServiceTransitional(MandosDBusService):
2363
__metaclass__ = AlternateDBusNamesMetaclass
2364
mandos_dbus_service = MandosDBusServiceTransitional()
2365
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
2366
3493
def cleanup():
2367
3494
"Cleanup function; run on exit"
2368
service.cleanup()
2369
2370
multiprocessing.active_children()
3495
if zeroconf:
3496
service.cleanup()
3497
3498
mp.active_children()
3499
wn.close()
2371
3500
if not (tcp_server.clients or client_settings):
2372
3501
return
2373
3502
2374
3503
# Store client before exiting. Secrets are encrypted with key
2375
3504
# based on what config file has. If config file is
2376
3505
# removed/edited, old secret will thus be unrecovable.
2377
3506
clients = {}
2378
3507
with PGPEngine() as pgp:
2379
for client in tcp_server.clients.itervalues():
3508
for client in tcp_server.clients.values():
2380
3509
key = client_settings[client.name]["secret"]
2381
3510
client.encrypted_secret = pgp.encrypt(client.secret,
2382
3511
key)
2383
3512
client_dict = {}
2384
3513
2385
3514
# A list of attributes that can not be pickled
2386
3515
# + secret.
2387
exclude = set(("bus", "changedstate", "secret",
2388
"checker"))
2389
for name, typ in (inspect.getmembers
2390
(dbus.service.Object)):
3516
exclude = {"bus", "changedstate", "secret",
3517
"checker", "server_settings"}
3518
for name, typ in inspect.getmembers(dbus.service
3519
.Object):
2391
3520
exclude.add(name)
2392
3521
2393
3522
client_dict["encrypted_secret"] = (client
2394
3523
.encrypted_secret)
2395
3524
for attr in client.client_structure:
2396
3525
if attr not in exclude:
2397
3526
client_dict[attr] = getattr(client, attr)
2398
3527
2399
3528
clients[client.name] = client_dict
2400
3529
del client_settings[client.name]["secret"]
2401
3530
2402
3531
try:
2403
with os.fdopen(os.open(stored_state_path,
2404
os.O_CREAT|os.O_WRONLY|os.O_TRUNC,
2405
0600), "wb") as stored_state:
2406
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
3541
os.rename(tempname, stored_state_path)
2407
3542
except (IOError, OSError) as e:
2408
logger.warning("Could not save persistent state: {0}"
2409
.format(e))
2410
if e.errno not in (errno.ENOENT, errno.EACCES):
3543
if not debug:
3544
try:
3545
os.remove(tempname)
3546
except NameError:
3547
pass
3548
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3549
logger.warning("Could not save persistent state: {}"
3550
.format(os.strerror(e.errno)))
3551
else:
3552
logger.warning("Could not save persistent state:",
3553
exc_info=e)
2411
3554
raise
2412
3555
2413
3556
# Delete all clients, and settings from config
2414
3557
while tcp_server.clients:
2415
3558
name, client = tcp_server.clients.popitem()
2416
3559
if use_dbus:
2417
3560
client.remove_from_connection()
2418
# Don't signal anything except ClientRemoved
3561
# Don't signal the disabling
2419
3562
client.disable(quiet=True)
3563
# Emit D-Bus signal for removal
2420
3564
if use_dbus:
2421
# Emit D-Bus signal
2422
mandos_dbus_service.ClientRemoved(client
2423
.dbus_object_path,
2424
client.name)
3565
mandos_dbus_service.client_removed_signal(client)
2425
3566
client_settings.clear()
2426
3567
2427
3568
atexit.register(cleanup)
2428
2429
for client in tcp_server.clients.itervalues():
3569
3570
for client in tcp_server.clients.values():
2430
3571
if use_dbus:
2431
# Emit D-Bus signal
2432
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3572
# Emit D-Bus signal for adding
3573
mandos_dbus_service.client_added_signal(client)
2433
3574
# Need to initiate checking of clients
2434
3575
if client.enabled:
2435
3576
client.init_checker()
2436
3577
2437
3578
tcp_server.enable()
2438
3579
tcp_server.server_activate()
2439
3580
2440
3581
# Find out what port we got
2441
service.port = tcp_server.socket.getsockname()[1]
3582
if zeroconf:
3583
service.port = tcp_server.socket.getsockname()[1]
2442
3584
if use_ipv6:
2443
3585
logger.info("Now listening on address %r, port %d,"
2444
" flowinfo %d, scope_id %d"
2445
% tcp_server.socket.getsockname())
3586
" flowinfo %d, scope_id %d",
3587
*tcp_server.socket.getsockname())
2446
3588
else: # IPv4
2447
logger.info("Now listening on address %r, port %d"
2448
% tcp_server.socket.getsockname())
2449
2450
#service.interface = tcp_server.socket.getsockname()[3]
2451
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
2452
3594
try:
2453
# From the Avahi example code
2454
try:
2455
service.activate()
2456
except dbus.exceptions.DBusException as error:
2457
logger.critical("DBusException: %s", error)
2458
cleanup()
2459
sys.exit(1)
2460
# End of Avahi example code
2461
2462
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2463
lambda *args, **kwargs:
2464
(tcp_server.handle_request
2465
(*args[2:], **kwargs) or True))
2466
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
2467
3611
logger.debug("Starting main loop")
2468
3612
main_loop.run()
2469
3613
except AvahiError as error:
2470
logger.critical("AvahiError: %s", error)
3614
logger.critical("Avahi Error", exc_info=error)
2471
3615
cleanup()
2472
3616
sys.exit(1)
2473
3617
except KeyboardInterrupt:
2478
3622
# Must run before the D-Bus bus name gets deregistered
2479
3623
cleanup()
2480
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
2481
3642
if __name__ == '__main__':
2482
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