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- Committer: teddy at recompile
- Date: 2012-01-01 17:38:33 UTC
- Revision ID: teddy@recompile.se-20120101173833-ai39bif1w0ftuyyh
* Makefile (install-server): Add intro(8mandos) man page.
* network-hooks.d/bridge: Add copyright info and year.
* network-hooks.d/openvpn: - '' -
* network-hooks.d/wireless: - '' -
* network-hooks.d/bridge: Add copyright info and year.
* network-hooks.d/openvpn: - '' -
* network-hooks.d/wireless: - '' -
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
66
import binascii
76
67
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
import shlex
83
68
84
69
import dbus
85
70
import dbus.service
86
import gi
87
from gi.repository import GLib
71
import gobject
72
import avahi
88
73
from dbus.mainloop.glib import DBusGMainLoop
89
74
import ctypes
90
75
import ctypes.util
91
76
import xml.dom.minidom
92
77
import inspect
93
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
78
import GnuPGInterface
79
80
try:
122
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
82
except AttributeError:
124
83
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
127
84
from IN import SO_BINDTODEVICE
128
85
except ImportError:
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.9"
86
SO_BINDTODEVICE = None
87
88
version = "1.5.0"
147
89
stored_state_file = "clients.pickle"
148
90
149
91
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
152
95
153
96
try:
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
156
100
except (OSError, AttributeError):
157
158
101
def if_nametoindex(interface):
159
102
"Get an interface index the hard way, i.e. using fcntl()"
160
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
161
104
with contextlib.closing(socket.socket()) as s:
162
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
165
110
return interface_index
166
111
167
112
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
184
113
def initlogger(debug, level=logging.WARNING):
185
114
"""init logger and add loglevel"""
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
115
191
116
syslogger.setFormatter(logging.Formatter
192
117
('Mandos [%(process)d]: %(levelname)s:'
193
118
' %(message)s'))
194
119
logger.addHandler(syslogger)
195
120
196
121
if debug:
197
122
console = logging.StreamHandler()
198
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
208
133
pass
209
134
210
135
211
class PGPEngine:
136
class PGPEngine(object):
212
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
214
138
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
215
140
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ['--batch',
228
'--homedir', self.tempdir,
229
'--force-mdc',
230
'--quiet']
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet',
146
'--no-use-agent'])
147
235
148
def __enter__(self):
236
149
return self
237
238
def __exit__(self, exc_type, exc_value, traceback):
150
151
def __exit__ (self, exc_type, exc_value, traceback):
239
152
self._cleanup()
240
153
return False
241
154
242
155
def __del__(self):
243
156
self._cleanup()
244
157
245
158
def _cleanup(self):
246
159
if self.tempdir is not None:
247
160
# Delete contents of tempdir
248
161
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
162
topdown = False):
250
163
for filename in files:
251
164
os.remove(os.path.join(root, filename))
252
165
for dirname in dirs:
254
167
# Remove tempdir
255
168
os.rmdir(self.tempdir)
256
169
self.tempdir = None
257
170
258
171
def password_encode(self, password):
259
172
# Passphrase can not be empty and can not contain newlines or
260
173
# NUL bytes. So we prefix it and hex encode it.
261
encoded = b"mandos" + binascii.hexlify(password)
262
if len(encoded) > 2048:
263
# GnuPG can't handle long passwords, so encode differently
264
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
.replace(b"\n", b"\\n")
266
.replace(b"\0", b"\\x00"))
267
return encoded
268
174
return b"mandos" + binascii.hexlify(password)
175
269
176
def encrypt(self, data, password):
270
passphrase = self.password_encode(password)
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
273
passfile.write(passphrase)
274
passfile.flush()
275
proc = subprocess.Popen([self.gpg, '--symmetric',
276
'--passphrase-file',
277
passfile.name]
278
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
283
if proc.returncode != 0:
284
raise PGPError(err)
177
self.gnupg.passphrase = self.password_encode(password)
178
with open(os.devnull) as devnull:
179
try:
180
proc = self.gnupg.run(['--symmetric'],
181
create_fhs=['stdin', 'stdout'],
182
attach_fhs={'stderr': devnull})
183
with contextlib.closing(proc.handles['stdin']) as f:
184
f.write(data)
185
with contextlib.closing(proc.handles['stdout']) as f:
186
ciphertext = f.read()
187
proc.wait()
188
except IOError as e:
189
raise PGPError(e)
190
self.gnupg.passphrase = None
285
191
return ciphertext
286
192
287
193
def decrypt(self, data, password):
288
passphrase = self.password_encode(password)
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
291
passfile.write(passphrase)
292
passfile.flush()
293
proc = subprocess.Popen([self.gpg, '--decrypt',
294
'--passphrase-file',
295
passfile.name]
296
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
301
if proc.returncode != 0:
302
raise PGPError(err)
194
self.gnupg.passphrase = self.password_encode(password)
195
with open(os.devnull) as devnull:
196
try:
197
proc = self.gnupg.run(['--decrypt'],
198
create_fhs=['stdin', 'stdout'],
199
attach_fhs={'stderr': devnull})
200
with contextlib.closing(proc.handles['stdin'] ) as f:
201
f.write(data)
202
with contextlib.closing(proc.handles['stdout']) as f:
203
decrypted_plaintext = f.read()
204
proc.wait()
205
except IOError as e:
206
raise PGPError(e)
207
self.gnupg.passphrase = None
303
208
return decrypted_plaintext
304
209
305
210
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
331
211
332
212
class AvahiError(Exception):
333
213
def __init__(self, value, *args, **kwargs):
334
214
self.value = value
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
338
218
339
219
class AvahiServiceError(AvahiError):
340
220
pass
341
221
342
343
222
class AvahiGroupError(AvahiError):
344
223
pass
345
224
346
225
347
class AvahiService:
226
class AvahiService(object):
348
227
"""An Avahi (Zeroconf) service.
349
228
350
229
Attributes:
351
230
interface: integer; avahi.IF_UNSPEC or an interface index.
352
231
Used to optionally bind to the specified interface.
353
232
name: string; Example: 'Mandos'
354
233
type: string; Example: '_mandos._tcp'.
355
See <https://www.iana.org/assignments/service-names-port-numbers>
234
See <http://www.dns-sd.org/ServiceTypes.html>
356
235
port: integer; what port to announce
357
236
TXT: list of strings; TXT record for the service
358
237
domain: string; Domain to publish on, default to .local if empty.
364
243
server: D-Bus Server
365
244
bus: dbus.SystemBus()
366
245
"""
367
368
def __init__(self,
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
246
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
247
servicetype = None, port = None, TXT = None,
248
domain = "", host = "", max_renames = 32768,
249
protocol = avahi.PROTO_UNSPEC, bus = None):
379
250
self.interface = interface
380
251
self.name = name
381
252
self.type = servicetype
390
261
self.server = None
391
262
self.bus = bus
392
263
self.entry_group_state_changed_match = None
393
394
def rename(self, remove=True):
264
def rename(self):
395
265
"""Derived from the Avahi example code"""
396
266
if self.rename_count >= self.max_renames:
397
267
logger.critical("No suitable Zeroconf service name found"
398
268
" after %i retries, exiting.",
399
269
self.rename_count)
400
270
raise AvahiServiceError("Too many renames")
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
404
273
logger.info("Changing Zeroconf service name to %r ...",
405
274
self.name)
406
if remove:
407
self.remove()
275
self.remove()
408
276
try:
409
277
self.add()
410
278
except dbus.exceptions.DBusException as error:
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
logger.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
logger.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
420
283
def remove(self):
421
284
"""Derived from the Avahi example code"""
422
285
if self.entry_group_state_changed_match is not None:
424
287
self.entry_group_state_changed_match = None
425
288
if self.group is not None:
426
289
self.group.Reset()
427
428
290
def add(self):
429
291
"""Derived from the Avahi example code"""
430
292
self.remove()
447
309
dbus.UInt16(self.port),
448
310
avahi.string_array_to_txt_array(self.TXT))
449
311
self.group.Commit()
450
451
312
def entry_group_state_changed(self, state, error):
452
313
"""Derived from the Avahi example code"""
453
314
logger.debug("Avahi entry group state change: %i", state)
454
315
455
316
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
317
logger.debug("Zeroconf service established.")
457
318
elif state == avahi.ENTRY_GROUP_COLLISION:
459
320
self.rename()
460
321
elif state == avahi.ENTRY_GROUP_FAILURE:
461
322
logger.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
465
326
def cleanup(self):
466
327
"""Derived from the Avahi example code"""
467
328
if self.group is not None:
472
333
pass
473
334
self.group = None
474
335
self.remove()
475
476
336
def server_state_changed(self, state, error=None):
477
337
"""Derived from the Avahi example code"""
478
338
logger.debug("Avahi server state change: %i", state)
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
339
bad_states = { avahi.SERVER_INVALID:
340
"Zeroconf server invalid",
341
avahi.SERVER_REGISTERING: None,
342
avahi.SERVER_COLLISION:
343
"Zeroconf server name collision",
344
avahi.SERVER_FAILURE:
345
"Zeroconf server failure" }
485
346
if state in bad_states:
486
347
if bad_states[state] is not None:
487
348
if error is None:
490
351
logger.error(bad_states[state] + ": %r", error)
491
352
self.cleanup()
492
353
elif state == avahi.SERVER_RUNNING:
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
logger.info("Local Zeroconf service name"
499
" collision.")
500
return self.rename(remove=False)
501
else:
502
logger.critical("D-Bus Exception", exc_info=error)
503
self.cleanup()
504
os._exit(1)
354
self.add()
505
355
else:
506
356
if error is None:
507
357
logger.debug("Unknown state: %r", state)
508
358
else:
509
359
logger.debug("Unknown state: %r: %r", state, error)
510
511
360
def activate(self):
512
361
"""Derived from the Avahi example code"""
513
362
if self.server is None:
517
366
follow_name_owner_changes=True),
518
367
avahi.DBUS_INTERFACE_SERVER)
519
368
self.server.connect_to_signal("StateChanged",
520
self.server_state_changed)
369
self.server_state_changed)
521
370
self.server_state_changed(self.server.GetState())
522
371
523
524
372
class AvahiServiceToSyslog(AvahiService):
525
def rename(self, *args, **kwargs):
373
def rename(self):
526
374
"""Add the new name to the syslog messages"""
527
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
528
syslogger.setFormatter(logging.Formatter(
529
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
530
.format(self.name)))
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
531
380
return ret
532
381
533
534
# Pretend that we have a GnuTLS module
535
class gnutls:
536
"""This isn't so much a class as it is a module-like namespace."""
537
538
library = ctypes.util.find_library("gnutls")
539
if library is None:
540
library = ctypes.util.find_library("gnutls-deb0")
541
_library = ctypes.cdll.LoadLibrary(library)
542
del library
543
544
# Unless otherwise indicated, the constants and types below are
545
# all from the gnutls/gnutls.h C header file.
546
547
# Constants
548
E_SUCCESS = 0
549
E_INTERRUPTED = -52
550
E_AGAIN = -28
551
CRT_OPENPGP = 2
552
CRT_RAWPK = 3
553
CLIENT = 2
554
SHUT_RDWR = 0
555
CRD_CERTIFICATE = 1
556
E_NO_CERTIFICATE_FOUND = -49
557
X509_FMT_DER = 0
558
NO_TICKETS = 1<<10
559
ENABLE_RAWPK = 1<<18
560
CTYPE_PEERS = 3
561
KEYID_USE_SHA256 = 1 # gnutls/x509.h
562
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
563
564
# Types
565
class session_int(ctypes.Structure):
566
_fields_ = []
567
session_t = ctypes.POINTER(session_int)
568
569
class certificate_credentials_st(ctypes.Structure):
570
_fields_ = []
571
certificate_credentials_t = ctypes.POINTER(
572
certificate_credentials_st)
573
certificate_type_t = ctypes.c_int
574
575
class datum_t(ctypes.Structure):
576
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
577
('size', ctypes.c_uint)]
578
579
class openpgp_crt_int(ctypes.Structure):
580
_fields_ = []
581
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
582
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
583
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
584
credentials_type_t = ctypes.c_int
585
transport_ptr_t = ctypes.c_void_p
586
close_request_t = ctypes.c_int
587
588
# Exceptions
589
class Error(Exception):
590
def __init__(self, message=None, code=None, args=()):
591
# Default usage is by a message string, but if a return
592
# code is passed, convert it to a string with
593
# gnutls.strerror()
594
self.code = code
595
if message is None and code is not None:
596
message = gnutls.strerror(code)
597
return super(gnutls.Error, self).__init__(
598
message, *args)
599
600
class CertificateSecurityError(Error):
601
pass
602
603
# Classes
604
class Credentials:
605
def __init__(self):
606
self._c_object = gnutls.certificate_credentials_t()
607
gnutls.certificate_allocate_credentials(
608
ctypes.byref(self._c_object))
609
self.type = gnutls.CRD_CERTIFICATE
610
611
def __del__(self):
612
gnutls.certificate_free_credentials(self._c_object)
613
614
class ClientSession:
615
def __init__(self, socket, credentials=None):
616
self._c_object = gnutls.session_t()
617
gnutls_flags = gnutls.CLIENT
618
if gnutls.check_version(b"3.5.6"):
619
gnutls_flags |= gnutls.NO_TICKETS
620
if gnutls.has_rawpk:
621
gnutls_flags |= gnutls.ENABLE_RAWPK
622
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
623
del gnutls_flags
624
gnutls.set_default_priority(self._c_object)
625
gnutls.transport_set_ptr(self._c_object, socket.fileno())
626
gnutls.handshake_set_private_extensions(self._c_object,
627
True)
628
self.socket = socket
629
if credentials is None:
630
credentials = gnutls.Credentials()
631
gnutls.credentials_set(self._c_object, credentials.type,
632
ctypes.cast(credentials._c_object,
633
ctypes.c_void_p))
634
self.credentials = credentials
635
636
def __del__(self):
637
gnutls.deinit(self._c_object)
638
639
def handshake(self):
640
return gnutls.handshake(self._c_object)
641
642
def send(self, data):
643
data = bytes(data)
644
data_len = len(data)
645
while data_len > 0:
646
data_len -= gnutls.record_send(self._c_object,
647
data[-data_len:],
648
data_len)
649
650
def bye(self):
651
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
652
653
# Error handling functions
654
def _error_code(result):
655
"""A function to raise exceptions on errors, suitable
656
for the 'restype' attribute on ctypes functions"""
657
if result >= 0:
658
return result
659
if result == gnutls.E_NO_CERTIFICATE_FOUND:
660
raise gnutls.CertificateSecurityError(code=result)
661
raise gnutls.Error(code=result)
662
663
def _retry_on_error(result, func, arguments):
664
"""A function to retry on some errors, suitable
665
for the 'errcheck' attribute on ctypes functions"""
666
while result < 0:
667
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
668
return _error_code(result)
669
result = func(*arguments)
670
return result
671
672
# Unless otherwise indicated, the function declarations below are
673
# all from the gnutls/gnutls.h C header file.
674
675
# Functions
676
priority_set_direct = _library.gnutls_priority_set_direct
677
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
678
ctypes.POINTER(ctypes.c_char_p)]
679
priority_set_direct.restype = _error_code
680
681
init = _library.gnutls_init
682
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
683
init.restype = _error_code
684
685
set_default_priority = _library.gnutls_set_default_priority
686
set_default_priority.argtypes = [session_t]
687
set_default_priority.restype = _error_code
688
689
record_send = _library.gnutls_record_send
690
record_send.argtypes = [session_t, ctypes.c_void_p,
691
ctypes.c_size_t]
692
record_send.restype = ctypes.c_ssize_t
693
record_send.errcheck = _retry_on_error
694
695
certificate_allocate_credentials = (
696
_library.gnutls_certificate_allocate_credentials)
697
certificate_allocate_credentials.argtypes = [
698
ctypes.POINTER(certificate_credentials_t)]
699
certificate_allocate_credentials.restype = _error_code
700
701
certificate_free_credentials = (
702
_library.gnutls_certificate_free_credentials)
703
certificate_free_credentials.argtypes = [
704
certificate_credentials_t]
705
certificate_free_credentials.restype = None
706
707
handshake_set_private_extensions = (
708
_library.gnutls_handshake_set_private_extensions)
709
handshake_set_private_extensions.argtypes = [session_t,
710
ctypes.c_int]
711
handshake_set_private_extensions.restype = None
712
713
credentials_set = _library.gnutls_credentials_set
714
credentials_set.argtypes = [session_t, credentials_type_t,
715
ctypes.c_void_p]
716
credentials_set.restype = _error_code
717
718
strerror = _library.gnutls_strerror
719
strerror.argtypes = [ctypes.c_int]
720
strerror.restype = ctypes.c_char_p
721
722
certificate_type_get = _library.gnutls_certificate_type_get
723
certificate_type_get.argtypes = [session_t]
724
certificate_type_get.restype = _error_code
725
726
certificate_get_peers = _library.gnutls_certificate_get_peers
727
certificate_get_peers.argtypes = [session_t,
728
ctypes.POINTER(ctypes.c_uint)]
729
certificate_get_peers.restype = ctypes.POINTER(datum_t)
730
731
global_set_log_level = _library.gnutls_global_set_log_level
732
global_set_log_level.argtypes = [ctypes.c_int]
733
global_set_log_level.restype = None
734
735
global_set_log_function = _library.gnutls_global_set_log_function
736
global_set_log_function.argtypes = [log_func]
737
global_set_log_function.restype = None
738
739
deinit = _library.gnutls_deinit
740
deinit.argtypes = [session_t]
741
deinit.restype = None
742
743
handshake = _library.gnutls_handshake
744
handshake.argtypes = [session_t]
745
handshake.restype = _error_code
746
handshake.errcheck = _retry_on_error
747
748
transport_set_ptr = _library.gnutls_transport_set_ptr
749
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
750
transport_set_ptr.restype = None
751
752
bye = _library.gnutls_bye
753
bye.argtypes = [session_t, close_request_t]
754
bye.restype = _error_code
755
bye.errcheck = _retry_on_error
756
757
check_version = _library.gnutls_check_version
758
check_version.argtypes = [ctypes.c_char_p]
759
check_version.restype = ctypes.c_char_p
760
761
_need_version = b"3.3.0"
762
if check_version(_need_version) is None:
763
raise self.Error("Needs GnuTLS {} or later"
764
.format(_need_version))
765
766
_tls_rawpk_version = b"3.6.6"
767
has_rawpk = bool(check_version(_tls_rawpk_version))
768
769
if has_rawpk:
770
# Types
771
class pubkey_st(ctypes.Structure):
772
_fields = []
773
pubkey_t = ctypes.POINTER(pubkey_st)
774
775
x509_crt_fmt_t = ctypes.c_int
776
777
# All the function declarations below are from gnutls/abstract.h
778
pubkey_init = _library.gnutls_pubkey_init
779
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
780
pubkey_init.restype = _error_code
781
782
pubkey_import = _library.gnutls_pubkey_import
783
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
784
x509_crt_fmt_t]
785
pubkey_import.restype = _error_code
786
787
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
788
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
789
ctypes.POINTER(ctypes.c_ubyte),
790
ctypes.POINTER(ctypes.c_size_t)]
791
pubkey_get_key_id.restype = _error_code
792
793
pubkey_deinit = _library.gnutls_pubkey_deinit
794
pubkey_deinit.argtypes = [pubkey_t]
795
pubkey_deinit.restype = None
796
else:
797
# All the function declarations below are from gnutls/openpgp.h
798
799
openpgp_crt_init = _library.gnutls_openpgp_crt_init
800
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
801
openpgp_crt_init.restype = _error_code
802
803
openpgp_crt_import = _library.gnutls_openpgp_crt_import
804
openpgp_crt_import.argtypes = [openpgp_crt_t,
805
ctypes.POINTER(datum_t),
806
openpgp_crt_fmt_t]
807
openpgp_crt_import.restype = _error_code
808
809
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
810
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
811
ctypes.POINTER(ctypes.c_uint)]
812
openpgp_crt_verify_self.restype = _error_code
813
814
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
815
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
816
openpgp_crt_deinit.restype = None
817
818
openpgp_crt_get_fingerprint = (
819
_library.gnutls_openpgp_crt_get_fingerprint)
820
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
821
ctypes.c_void_p,
822
ctypes.POINTER(
823
ctypes.c_size_t)]
824
openpgp_crt_get_fingerprint.restype = _error_code
825
826
if check_version(b"3.6.4"):
827
certificate_type_get2 = _library.gnutls_certificate_type_get2
828
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
829
certificate_type_get2.restype = _error_code
830
831
# Remove non-public functions
832
del _error_code, _retry_on_error
833
834
835
def call_pipe(connection, # : multiprocessing.Connection
836
func, *args, **kwargs):
837
"""This function is meant to be called by multiprocessing.Process
838
839
This function runs func(*args, **kwargs), and writes the resulting
840
return value on the provided multiprocessing.Connection.
841
"""
842
connection.send(func(*args, **kwargs))
843
connection.close()
844
845
846
class Client:
382
def timedelta_to_milliseconds(td):
383
"Convert a datetime.timedelta() to milliseconds"
384
return ((td.days * 24 * 60 * 60 * 1000)
385
+ (td.seconds * 1000)
386
+ (td.microseconds // 1000))
387
388
class Client(object):
847
389
"""A representation of a client host served by this server.
848
390
849
391
Attributes:
850
392
approved: bool(); 'None' if not yet approved/disapproved
851
393
approval_delay: datetime.timedelta(); Time to wait for approval
852
394
approval_duration: datetime.timedelta(); Duration of one approval
853
checker: multiprocessing.Process(); a running checker process used
854
to see if the client lives. 'None' if no process is
855
running.
856
checker_callback_tag: a GLib event source tag, or None
395
checker: subprocess.Popen(); a running checker process used
396
to see if the client lives.
397
'None' if no process is running.
398
checker_callback_tag: a gobject event source tag, or None
857
399
checker_command: string; External command which is run to check
858
400
if client lives. %() expansions are done at
859
401
runtime with vars(self) as dict, so that for
860
402
instance %(name)s can be used in the command.
861
checker_initiator_tag: a GLib event source tag, or None
403
checker_initiator_tag: a gobject event source tag, or None
862
404
created: datetime.datetime(); (UTC) object creation
863
405
client_structure: Object describing what attributes a client has
864
406
and is used for storing the client at exit
865
407
current_checker_command: string; current running checker_command
866
disable_initiator_tag: a GLib event source tag, or None
408
disable_initiator_tag: a gobject event source tag, or None
867
409
enabled: bool()
868
410
fingerprint: string (40 or 32 hexadecimal digits); used to
869
uniquely identify an OpenPGP client
870
key_id: string (64 hexadecimal digits); used to uniquely identify
871
a client using raw public keys
411
uniquely identify the client
872
412
host: string; available for use by the checker command
873
413
interval: datetime.timedelta(); How often to start a new checker
874
414
last_approval_request: datetime.datetime(); (UTC) or None
875
415
last_checked_ok: datetime.datetime(); (UTC) or None
876
416
last_checker_status: integer between 0 and 255 reflecting exit
877
417
status of last checker. -1 reflects crashed
878
checker, -2 means no checker completed yet.
879
last_checker_signal: The signal which killed the last checker, if
880
last_checker_status is -1
418
checker, or None.
881
419
last_enabled: datetime.datetime(); (UTC) or None
882
420
name: string; from the config file, used in log messages and
883
421
D-Bus identifiers
884
422
secret: bytestring; sent verbatim (over TLS) to client
885
423
timeout: datetime.timedelta(); How long from last_checked_ok
886
424
until this client is disabled
887
extended_timeout: extra long timeout when secret has been sent
425
extended_timeout: extra long timeout when password has been sent
888
426
runtime_expansions: Allowed attributes for runtime expansion.
889
427
expires: datetime.datetime(); time (UTC) when a client will be
890
428
disabled, or None
891
server_settings: The server_settings dict from main()
892
429
"""
893
430
894
431
runtime_expansions = ("approval_delay", "approval_duration",
895
"created", "enabled", "expires", "key_id",
896
"fingerprint", "host", "interval",
897
"last_approval_request", "last_checked_ok",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
898
434
"last_enabled", "name", "timeout")
899
client_defaults = {
900
"timeout": "PT5M",
901
"extended_timeout": "PT15M",
902
"interval": "PT2M",
903
"checker": "fping -q -- %%(host)s",
904
"host": "",
905
"approval_delay": "PT0S",
906
"approval_duration": "PT1S",
907
"approved_by_default": "True",
908
"enabled": "True",
909
}
435
client_defaults = { "timeout": "5m",
436
"extended_timeout": "15m",
437
"interval": "2m",
438
"checker": "fping -q -- %%(host)s",
439
"host": "",
440
"approval_delay": "0s",
441
"approval_duration": "1s",
442
"approved_by_default": "True",
443
"enabled": "True",
444
}
445
446
def timeout_milliseconds(self):
447
"Return the 'timeout' attribute in milliseconds"
448
return timedelta_to_milliseconds(self.timeout)
449
450
def extended_timeout_milliseconds(self):
451
"Return the 'extended_timeout' attribute in milliseconds"
452
return timedelta_to_milliseconds(self.extended_timeout)
453
454
def interval_milliseconds(self):
455
"Return the 'interval' attribute in milliseconds"
456
return timedelta_to_milliseconds(self.interval)
457
458
def approval_delay_milliseconds(self):
459
return timedelta_to_milliseconds(self.approval_delay)
910
460
911
461
@staticmethod
912
462
def config_parser(config):
920
470
for client_name in config.sections():
921
471
section = dict(config.items(client_name))
922
472
client = settings[client_name] = {}
923
473
924
474
client["host"] = section["host"]
925
475
# Reformat values from string types to Python types
926
476
client["approved_by_default"] = config.getboolean(
927
477
client_name, "approved_by_default")
928
478
client["enabled"] = config.getboolean(client_name,
929
479
"enabled")
930
931
# Uppercase and remove spaces from key_id and fingerprint
932
# for later comparison purposes with return value from the
933
# key_id() and fingerprint() functions
934
client["key_id"] = (section.get("key_id", "").upper()
935
.replace(" ", ""))
480
936
481
client["fingerprint"] = (section["fingerprint"].upper()
937
482
.replace(" ", ""))
938
483
if "secret" in section:
939
client["secret"] = codecs.decode(section["secret"]
940
.encode("utf-8"),
941
"base64")
484
client["secret"] = section["secret"].decode("base64")
942
485
elif "secfile" in section:
943
486
with open(os.path.expanduser(os.path.expandvars
944
487
(section["secfile"])),
945
488
"rb") as secfile:
946
489
client["secret"] = secfile.read()
947
490
else:
948
raise TypeError("No secret or secfile for section {}"
949
.format(section))
491
raise TypeError("No secret or secfile for section %s"
492
% section)
950
493
client["timeout"] = string_to_delta(section["timeout"])
951
494
client["extended_timeout"] = string_to_delta(
952
495
section["extended_timeout"])
958
501
client["checker_command"] = section["checker"]
959
502
client["last_approval_request"] = None
960
503
client["last_checked_ok"] = None
961
client["last_checker_status"] = -2
962
504
client["last_checker_status"] = None
505
963
506
return settings
964
965
def __init__(self, settings, name=None, server_settings=None):
507
508
509
def __init__(self, settings, name = None):
510
"""Note: the 'checker' key in 'config' sets the
511
'checker_command' attribute and *not* the 'checker'
512
attribute."""
966
513
self.name = name
967
if server_settings is None:
968
server_settings = {}
969
self.server_settings = server_settings
970
514
# adding all client settings
971
for setting, value in settings.items():
515
for setting, value in settings.iteritems():
972
516
setattr(self, setting, value)
973
517
974
518
if self.enabled:
975
519
if not hasattr(self, "last_enabled"):
976
520
self.last_enabled = datetime.datetime.utcnow()
980
524
else:
981
525
self.last_enabled = None
982
526
self.expires = None
983
527
984
528
logger.debug("Creating client %r", self.name)
985
logger.debug(" Key ID: %s", self.key_id)
529
# Uppercase and remove spaces from fingerprint for later
530
# comparison purposes with return value from the fingerprint()
531
# function
986
532
logger.debug(" Fingerprint: %s", self.fingerprint)
987
533
self.created = settings.get("created",
988
534
datetime.datetime.utcnow())
995
541
self.current_checker_command = None
996
542
self.approved = None
997
543
self.approvals_pending = 0
998
self.changedstate = multiprocessing_manager.Condition(
999
multiprocessing_manager.Lock())
1000
self.client_structure = [attr
1001
for attr in self.__dict__.keys()
544
self.changedstate = (multiprocessing_manager
545
.Condition(multiprocessing_manager
546
.Lock()))
547
self.client_structure = [attr for attr in
548
self.__dict__.iterkeys()
1002
549
if not attr.startswith("_")]
1003
550
self.client_structure.append("client_structure")
1004
1005
for name, t in inspect.getmembers(
1006
type(self), lambda obj: isinstance(obj, property)):
551
552
for name, t in inspect.getmembers(type(self),
553
lambda obj:
554
isinstance(obj,
555
property)):
1007
556
if not name.startswith("_"):
1008
557
self.client_structure.append(name)
1009
558
1010
559
# Send notice to process children that client state has changed
1011
560
def send_changedstate(self):
1012
561
with self.changedstate:
1013
562
self.changedstate.notify_all()
1014
563
1015
564
def enable(self):
1016
565
"""Start this client's checker and timeout hooks"""
1017
566
if getattr(self, "enabled", False):
1018
567
# Already enabled
1019
568
return
569
self.send_changedstate()
1020
570
self.expires = datetime.datetime.utcnow() + self.timeout
1021
571
self.enabled = True
1022
572
self.last_enabled = datetime.datetime.utcnow()
1023
573
self.init_checker()
1024
self.send_changedstate()
1025
574
1026
575
def disable(self, quiet=True):
1027
576
"""Disable this client."""
1028
577
if not getattr(self, "enabled", False):
1029
578
return False
1030
579
if not quiet:
580
self.send_changedstate()
581
if not quiet:
1031
582
logger.info("Disabling client %s", self.name)
1032
if getattr(self, "disable_initiator_tag", None) is not None:
1033
GLib.source_remove(self.disable_initiator_tag)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
1034
585
self.disable_initiator_tag = None
1035
586
self.expires = None
1036
if getattr(self, "checker_initiator_tag", None) is not None:
1037
GLib.source_remove(self.checker_initiator_tag)
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
1038
589
self.checker_initiator_tag = None
1039
590
self.stop_checker()
1040
591
self.enabled = False
1041
if not quiet:
1042
self.send_changedstate()
1043
# Do not run this again if called by a GLib.timeout_add
592
# Do not run this again if called by a gobject.timeout_add
1044
593
return False
1045
594
1046
595
def __del__(self):
1047
596
self.disable()
1048
597
1049
598
def init_checker(self):
1050
599
# Schedule a new checker to be started an 'interval' from now,
1051
600
# and every interval from then on.
1052
if self.checker_initiator_tag is not None:
1053
GLib.source_remove(self.checker_initiator_tag)
1054
self.checker_initiator_tag = GLib.timeout_add(
1055
random.randrange(int(self.interval.total_seconds() * 1000
1056
+ 1)),
1057
self.start_checker)
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
1058
604
# Schedule a disable() when 'timeout' has passed
1059
if self.disable_initiator_tag is not None:
1060
GLib.source_remove(self.disable_initiator_tag)
1061
self.disable_initiator_tag = GLib.timeout_add(
1062
int(self.timeout.total_seconds() * 1000), self.disable)
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
1063
608
# Also start a new checker *right now*.
1064
609
self.start_checker()
1065
1066
def checker_callback(self, source, condition, connection,
1067
command):
610
611
def checker_callback(self, pid, condition, command):
1068
612
"""The checker has completed, so take appropriate actions."""
1069
# Read return code from connection (see call_pipe)
1070
returncode = connection.recv()
1071
connection.close()
1072
if self.checker is not None:
1073
self.checker.join()
1074
613
self.checker_callback_tag = None
1075
614
self.checker = None
1076
1077
if returncode >= 0:
1078
self.last_checker_status = returncode
1079
self.last_checker_signal = None
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
1080
617
if self.last_checker_status == 0:
1081
618
logger.info("Checker for %(name)s succeeded",
1082
619
vars(self))
1083
620
self.checked_ok()
1084
621
else:
1085
logger.info("Checker for %(name)s failed", vars(self))
622
logger.info("Checker for %(name)s failed",
623
vars(self))
1086
624
else:
1087
625
self.last_checker_status = -1
1088
self.last_checker_signal = -returncode
1089
626
logger.warning("Checker for %(name)s crashed?",
1090
627
vars(self))
1091
return False
1092
1093
def checked_ok(self):
1094
"""Assert that the client has been seen, alive and well."""
1095
self.last_checked_ok = datetime.datetime.utcnow()
1096
self.last_checker_status = 0
1097
self.last_checker_signal = None
1098
self.bump_timeout()
1099
1100
def bump_timeout(self, timeout=None):
1101
"""Bump up the timeout for this client."""
628
629
def checked_ok(self, timeout=None):
630
"""Bump up the timeout for this client.
631
632
This should only be called when the client has been seen,
633
alive and well.
634
"""
1102
635
if timeout is None:
1103
636
timeout = self.timeout
637
self.last_checked_ok = datetime.datetime.utcnow()
1104
638
if self.disable_initiator_tag is not None:
1105
GLib.source_remove(self.disable_initiator_tag)
1106
self.disable_initiator_tag = None
639
gobject.source_remove(self.disable_initiator_tag)
1107
640
if getattr(self, "enabled", False):
1108
self.disable_initiator_tag = GLib.timeout_add(
1109
int(timeout.total_seconds() * 1000), self.disable)
641
self.disable_initiator_tag = (gobject.timeout_add
642
(timedelta_to_milliseconds
643
(timeout), self.disable))
1110
644
self.expires = datetime.datetime.utcnow() + timeout
1111
645
1112
646
def need_approval(self):
1113
647
self.last_approval_request = datetime.datetime.utcnow()
1114
648
1115
649
def start_checker(self):
1116
650
"""Start a new checker subprocess if one is not running.
1117
651
1118
652
If a checker already exists, leave it running and do
1119
653
nothing."""
1120
654
# The reason for not killing a running checker is that if we
1121
# did that, and if a checker (for some reason) started running
1122
# slowly and taking more than 'interval' time, then the client
1123
# would inevitably timeout, since no checker would get a
1124
# chance to run to completion. If we instead leave running
655
# did that, then if a checker (for some reason) started
656
# running slowly and taking more than 'interval' time, the
657
# client would inevitably timeout, since no checker would get
658
# a chance to run to completion. If we instead leave running
1125
659
# checkers alone, the checker would have to take more time
1126
660
# than 'timeout' for the client to be disabled, which is as it
1127
661
# should be.
1128
1129
if self.checker is not None and not self.checker.is_alive():
1130
logger.warning("Checker was not alive; joining")
1131
self.checker.join()
1132
self.checker = None
662
663
# If a checker exists, make sure it is not a zombie
664
try:
665
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
666
except (AttributeError, OSError) as error:
667
if (isinstance(error, OSError)
668
and error.errno != errno.ECHILD):
669
raise error
670
else:
671
if pid:
672
logger.warning("Checker was a zombie")
673
gobject.source_remove(self.checker_callback_tag)
674
self.checker_callback(pid, status,
675
self.current_checker_command)
1133
676
# Start a new checker if needed
1134
677
if self.checker is None:
1135
# Escape attributes for the shell
1136
escaped_attrs = {
1137
attr: shlex.quote(str(getattr(self, attr)))
1138
for attr in self.runtime_expansions}
1139
678
try:
1140
command = self.checker_command % escaped_attrs
1141
except TypeError as error:
1142
logger.error('Could not format string "%s"',
1143
self.checker_command,
1144
exc_info=error)
1145
return True # Try again later
679
# In case checker_command has exactly one % operator
680
command = self.checker_command % self.host
681
except TypeError:
682
# Escape attributes for the shell
683
escaped_attrs = dict(
684
(attr,
685
re.escape(unicode(str(getattr(self, attr, "")),
686
errors=
687
'replace')))
688
for attr in
689
self.runtime_expansions)
690
691
try:
692
command = self.checker_command % escaped_attrs
693
except TypeError as error:
694
logger.error('Could not format string "%s":'
695
' %s', self.checker_command, error)
696
return True # Try again later
1146
697
self.current_checker_command = command
1147
logger.info("Starting checker %r for %s", command,
1148
self.name)
1149
# We don't need to redirect stdout and stderr, since
1150
# in normal mode, that is already done by daemon(),
1151
# and in debug mode we don't want to. (Stdin is
1152
# always replaced by /dev/null.)
1153
# The exception is when not debugging but nevertheless
1154
# running in the foreground; use the previously
1155
# created wnull.
1156
popen_args = {"close_fds": True,
1157
"shell": True,
1158
"cwd": "/"}
1159
if (not self.server_settings["debug"]
1160
and self.server_settings["foreground"]):
1161
popen_args.update({"stdout": wnull,
1162
"stderr": wnull})
1163
pipe = multiprocessing.Pipe(duplex=False)
1164
self.checker = multiprocessing.Process(
1165
target=call_pipe,
1166
args=(pipe[1], subprocess.call, command),
1167
kwargs=popen_args)
1168
self.checker.start()
1169
self.checker_callback_tag = GLib.io_add_watch(
1170
GLib.IOChannel.unix_new(pipe[0].fileno()),
1171
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1172
self.checker_callback, pipe[0], command)
1173
# Re-run this periodically if run by GLib.timeout_add
698
try:
699
logger.info("Starting checker %r for %s",
700
command, self.name)
701
# We don't need to redirect stdout and stderr, since
702
# in normal mode, that is already done by daemon(),
703
# and in debug mode we don't want to. (Stdin is
704
# always replaced by /dev/null.)
705
self.checker = subprocess.Popen(command,
706
close_fds=True,
707
shell=True, cwd="/")
708
self.checker_callback_tag = (gobject.child_watch_add
709
(self.checker.pid,
710
self.checker_callback,
711
data=command))
712
# The checker may have completed before the gobject
713
# watch was added. Check for this.
714
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
715
if pid:
716
gobject.source_remove(self.checker_callback_tag)
717
self.checker_callback(pid, status, command)
718
except OSError as error:
719
logger.error("Failed to start subprocess: %s",
720
error)
721
# Re-run this periodically if run by gobject.timeout_add
1174
722
return True
1175
723
1176
724
def stop_checker(self):
1177
725
"""Force the checker process, if any, to stop."""
1178
726
if self.checker_callback_tag:
1179
GLib.source_remove(self.checker_callback_tag)
727
gobject.source_remove(self.checker_callback_tag)
1180
728
self.checker_callback_tag = None
1181
729
if getattr(self, "checker", None) is None:
1182
730
return
1183
731
logger.debug("Stopping checker for %(name)s", vars(self))
1184
self.checker.terminate()
732
try:
733
os.kill(self.checker.pid, signal.SIGTERM)
734
#time.sleep(0.5)
735
#if self.checker.poll() is None:
736
# os.kill(self.checker.pid, signal.SIGKILL)
737
except OSError as error:
738
if error.errno != errno.ESRCH: # No such process
739
raise
1185
740
self.checker = None
1186
741
1187
742
1188
def dbus_service_property(dbus_interface,
1189
signature="v",
1190
access="readwrite",
1191
byte_arrays=False):
743
def dbus_service_property(dbus_interface, signature="v",
744
access="readwrite", byte_arrays=False):
1192
745
"""Decorators for marking methods of a DBusObjectWithProperties to
1193
746
become properties on the D-Bus.
1194
747
1195
748
The decorated method will be called with no arguments by "Get"
1196
749
and with one argument by "Set".
1197
750
1198
751
The parameters, where they are supported, are the same as
1199
752
dbus.service.method, except there is only "signature", since the
1200
753
type from Get() and the type sent to Set() is the same.
1203
756
# "Set" method, so we fail early here:
1204
757
if byte_arrays and signature != "ay":
1205
758
raise ValueError("Byte arrays not supported for non-'ay'"
1206
" signature {!r}".format(signature))
1207
759
" signature %r" % signature)
1208
760
def decorator(func):
1209
761
func._dbus_is_property = True
1210
762
func._dbus_interface = dbus_interface
1213
765
func._dbus_name = func.__name__
1214
766
if func._dbus_name.endswith("_dbus_property"):
1215
767
func._dbus_name = func._dbus_name[:-14]
1216
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1217
return func
1218
1219
return decorator
1220
1221
1222
def dbus_interface_annotations(dbus_interface):
1223
"""Decorator for marking functions returning interface annotations
1224
1225
Usage:
1226
1227
@dbus_interface_annotations("org.example.Interface")
1228
def _foo(self): # Function name does not matter
1229
return {"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1231
"false"}
1232
"""
1233
1234
def decorator(func):
1235
func._dbus_is_interface = True
1236
func._dbus_interface = dbus_interface
1237
func._dbus_name = dbus_interface
1238
return func
1239
1240
return decorator
1241
1242
1243
def dbus_annotations(annotations):
1244
"""Decorator to annotate D-Bus methods, signals or properties
1245
Usage:
1246
1247
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1248
"org.freedesktop.DBus.Property."
1249
"EmitsChangedSignal": "false"})
1250
@dbus_service_property("org.example.Interface", signature="b",
1251
access="r")
1252
def Property_dbus_property(self):
1253
return dbus.Boolean(False)
1254
1255
See also the DBusObjectWithAnnotations class.
1256
"""
1257
1258
def decorator(func):
1259
func._dbus_annotations = annotations
1260
return func
1261
768
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
769
return func
1262
770
return decorator
1263
771
1264
772
1265
773
class DBusPropertyException(dbus.exceptions.DBusException):
1266
774
"""A base class for D-Bus property-related exceptions
1267
775
"""
1268
pass
776
def __unicode__(self):
777
return unicode(str(self))
1269
778
1270
779
1271
780
class DBusPropertyAccessException(DBusPropertyException):
1280
789
pass
1281
790
1282
791
1283
class DBusObjectWithAnnotations(dbus.service.Object):
1284
"""A D-Bus object with annotations.
1285
1286
Classes inheriting from this can use the dbus_annotations
1287
decorator to add annotations to methods or signals.
1288
"""
1289
1290
@staticmethod
1291
def _is_dbus_thing(thing):
1292
"""Returns a function testing if an attribute is a D-Bus thing
1293
1294
If called like _is_dbus_thing("method") it returns a function
1295
suitable for use as predicate to inspect.getmembers().
1296
"""
1297
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1298
False)
1299
1300
def _get_all_dbus_things(self, thing):
1301
"""Returns a generator of (name, attribute) pairs
1302
"""
1303
return ((getattr(athing.__get__(self), "_dbus_name", name),
1304
athing.__get__(self))
1305
for cls in self.__class__.__mro__
1306
for name, athing in
1307
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1308
1309
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1310
out_signature="s",
1311
path_keyword='object_path',
1312
connection_keyword='connection')
1313
def Introspect(self, object_path, connection):
1314
"""Overloading of standard D-Bus method.
1315
1316
Inserts annotation tags on methods and signals.
1317
"""
1318
xmlstring = dbus.service.Object.Introspect(self, object_path,
1319
connection)
1320
try:
1321
document = xml.dom.minidom.parseString(xmlstring)
1322
1323
for if_tag in document.getElementsByTagName("interface"):
1324
# Add annotation tags
1325
for typ in ("method", "signal"):
1326
for tag in if_tag.getElementsByTagName(typ):
1327
annots = dict()
1328
for name, prop in (self.
1329
_get_all_dbus_things(typ)):
1330
if (name == tag.getAttribute("name")
1331
and prop._dbus_interface
1332
== if_tag.getAttribute("name")):
1333
annots.update(getattr(
1334
prop, "_dbus_annotations", {}))
1335
for name, value in annots.items():
1336
ann_tag = document.createElement(
1337
"annotation")
1338
ann_tag.setAttribute("name", name)
1339
ann_tag.setAttribute("value", value)
1340
tag.appendChild(ann_tag)
1341
# Add interface annotation tags
1342
for annotation, value in dict(
1343
itertools.chain.from_iterable(
1344
annotations().items()
1345
for name, annotations
1346
in self._get_all_dbus_things("interface")
1347
if name == if_tag.getAttribute("name")
1348
)).items():
1349
ann_tag = document.createElement("annotation")
1350
ann_tag.setAttribute("name", annotation)
1351
ann_tag.setAttribute("value", value)
1352
if_tag.appendChild(ann_tag)
1353
# Fix argument name for the Introspect method itself
1354
if (if_tag.getAttribute("name")
1355
== dbus.INTROSPECTABLE_IFACE):
1356
for cn in if_tag.getElementsByTagName("method"):
1357
if cn.getAttribute("name") == "Introspect":
1358
for arg in cn.getElementsByTagName("arg"):
1359
if (arg.getAttribute("direction")
1360
== "out"):
1361
arg.setAttribute("name",
1362
"xml_data")
1363
xmlstring = document.toxml("utf-8")
1364
document.unlink()
1365
except (AttributeError, xml.dom.DOMException,
1366
xml.parsers.expat.ExpatError) as error:
1367
logger.error("Failed to override Introspection method",
1368
exc_info=error)
1369
return xmlstring
1370
1371
1372
class DBusObjectWithProperties(DBusObjectWithAnnotations):
792
class DBusObjectWithProperties(dbus.service.Object):
1373
793
"""A D-Bus object with properties.
1374
794
1375
795
Classes inheriting from this can use the dbus_service_property
1376
796
decorator to expose methods as D-Bus properties. It exposes the
1377
797
standard Get(), Set(), and GetAll() methods on the D-Bus.
1378
798
"""
1379
799
800
@staticmethod
801
def _is_dbus_property(obj):
802
return getattr(obj, "_dbus_is_property", False)
803
804
def _get_all_dbus_properties(self):
805
"""Returns a generator of (name, attribute) pairs
806
"""
807
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
808
for cls in self.__class__.__mro__
809
for name, prop in
810
inspect.getmembers(cls, self._is_dbus_property))
811
1380
812
def _get_dbus_property(self, interface_name, property_name):
1381
813
"""Returns a bound method if one exists which is a D-Bus
1382
814
property with the specified name and interface.
1383
815
"""
1384
for cls in self.__class__.__mro__:
1385
for name, value in inspect.getmembers(
1386
cls, self._is_dbus_thing("property")):
816
for cls in self.__class__.__mro__:
817
for name, value in (inspect.getmembers
818
(cls, self._is_dbus_property)):
1387
819
if (value._dbus_name == property_name
1388
820
and value._dbus_interface == interface_name):
1389
821
return value.__get__(self)
1390
822
1391
823
# No such property
1392
raise DBusPropertyNotFound("{}:{}.{}".format(
1393
self.dbus_object_path, interface_name, property_name))
1394
1395
@classmethod
1396
def _get_all_interface_names(cls):
1397
"""Get a sequence of all interfaces supported by an object"""
1398
return (name for name in set(getattr(getattr(x, attr),
1399
"_dbus_interface", None)
1400
for x in (inspect.getmro(cls))
1401
for attr in dir(x))
1402
if name is not None)
1403
1404
@dbus.service.method(dbus.PROPERTIES_IFACE,
1405
in_signature="ss",
824
raise DBusPropertyNotFound(self.dbus_object_path + ":"
825
+ interface_name + "."
826
+ property_name)
827
828
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1406
829
out_signature="v")
1407
830
def Get(self, interface_name, property_name):
1408
831
"""Standard D-Bus property Get() method, see D-Bus standard.
1414
837
if not hasattr(value, "variant_level"):
1415
838
return value
1416
839
return type(value)(value, variant_level=value.variant_level+1)
1417
840
1418
841
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1419
842
def Set(self, interface_name, property_name, value):
1420
843
"""Standard D-Bus property Set() method, see D-Bus standard.
1426
849
# The byte_arrays option is not supported yet on
1427
850
# signatures other than "ay".
1428
851
if prop._dbus_signature != "ay":
1429
raise ValueError("Byte arrays not supported for non-"
1430
"'ay' signature {!r}"
1431
.format(prop._dbus_signature))
1432
value = dbus.ByteArray(bytes(value))
852
raise ValueError
853
value = dbus.ByteArray(b''.join(chr(byte)
854
for byte in value))
1433
855
prop(value)
1434
1435
@dbus.service.method(dbus.PROPERTIES_IFACE,
1436
in_signature="s",
856
857
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1437
858
out_signature="a{sv}")
1438
859
def GetAll(self, interface_name):
1439
860
"""Standard D-Bus property GetAll() method, see D-Bus
1440
861
standard.
1441
862
1442
863
Note: Will not include properties with access="write".
1443
864
"""
1444
865
properties = {}
1445
for name, prop in self._get_all_dbus_things("property"):
866
for name, prop in self._get_all_dbus_properties():
1446
867
if (interface_name
1447
868
and interface_name != prop._dbus_interface):
1448
869
# Interface non-empty but did not match
1454
875
if not hasattr(value, "variant_level"):
1455
876
properties[name] = value
1456
877
continue
1457
properties[name] = type(value)(
1458
value, variant_level=value.variant_level + 1)
878
properties[name] = type(value)(value, variant_level=
879
value.variant_level+1)
1459
880
return dbus.Dictionary(properties, signature="sv")
1460
1461
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1462
def PropertiesChanged(self, interface_name, changed_properties,
1463
invalidated_properties):
1464
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1465
standard.
1466
"""
1467
pass
1468
881
1469
882
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1470
883
out_signature="s",
1471
884
path_keyword='object_path',
1472
885
connection_keyword='connection')
1473
886
def Introspect(self, object_path, connection):
1474
"""Overloading of standard D-Bus method.
1475
1476
Inserts property tags and interface annotation tags.
887
"""Standard D-Bus method, overloaded to insert property tags.
1477
888
"""
1478
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1479
object_path,
1480
connection)
889
xmlstring = dbus.service.Object.Introspect(self, object_path,
890
connection)
1481
891
try:
1482
892
document = xml.dom.minidom.parseString(xmlstring)
1483
1484
893
def make_tag(document, name, prop):
1485
894
e = document.createElement("property")
1486
895
e.setAttribute("name", name)
1487
896
e.setAttribute("type", prop._dbus_signature)
1488
897
e.setAttribute("access", prop._dbus_access)
1489
898
return e
1490
1491
899
for if_tag in document.getElementsByTagName("interface"):
1492
# Add property tags
1493
900
for tag in (make_tag(document, name, prop)
1494
901
for name, prop
1495
in self._get_all_dbus_things("property")
902
in self._get_all_dbus_properties()
1496
903
if prop._dbus_interface
1497
904
== if_tag.getAttribute("name")):
1498
905
if_tag.appendChild(tag)
1499
# Add annotation tags for properties
1500
for tag in if_tag.getElementsByTagName("property"):
1501
annots = dict()
1502
for name, prop in self._get_all_dbus_things(
1503
"property"):
1504
if (name == tag.getAttribute("name")
1505
and prop._dbus_interface
1506
== if_tag.getAttribute("name")):
1507
annots.update(getattr(
1508
prop, "_dbus_annotations", {}))
1509
for name, value in annots.items():
1510
ann_tag = document.createElement(
1511
"annotation")
1512
ann_tag.setAttribute("name", name)
1513
ann_tag.setAttribute("value", value)
1514
tag.appendChild(ann_tag)
1515
906
# Add the names to the return values for the
1516
907
# "org.freedesktop.DBus.Properties" methods
1517
908
if (if_tag.getAttribute("name")
1532
923
except (AttributeError, xml.dom.DOMException,
1533
924
xml.parsers.expat.ExpatError) as error:
1534
925
logger.error("Failed to override Introspection method",
1535
exc_info=error)
1536
return xmlstring
1537
1538
1539
try:
1540
dbus.OBJECT_MANAGER_IFACE
1541
except AttributeError:
1542
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1543
1544
1545
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1546
"""A D-Bus object with an ObjectManager.
1547
1548
Classes inheriting from this exposes the standard
1549
GetManagedObjects call and the InterfacesAdded and
1550
InterfacesRemoved signals on the standard
1551
"org.freedesktop.DBus.ObjectManager" interface.
1552
1553
Note: No signals are sent automatically; they must be sent
1554
manually.
1555
"""
1556
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1557
out_signature="a{oa{sa{sv}}}")
1558
def GetManagedObjects(self):
1559
"""This function must be overridden"""
1560
raise NotImplementedError()
1561
1562
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1563
signature="oa{sa{sv}}")
1564
def InterfacesAdded(self, object_path, interfaces_and_properties):
1565
pass
1566
1567
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1568
def InterfacesRemoved(self, object_path, interfaces):
1569
pass
1570
1571
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1572
out_signature="s",
1573
path_keyword='object_path',
1574
connection_keyword='connection')
1575
def Introspect(self, object_path, connection):
1576
"""Overloading of standard D-Bus method.
1577
1578
Override return argument name of GetManagedObjects to be
1579
"objpath_interfaces_and_properties"
1580
"""
1581
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1582
object_path,
1583
connection)
1584
try:
1585
document = xml.dom.minidom.parseString(xmlstring)
1586
1587
for if_tag in document.getElementsByTagName("interface"):
1588
# Fix argument name for the GetManagedObjects method
1589
if (if_tag.getAttribute("name")
1590
== dbus.OBJECT_MANAGER_IFACE):
1591
for cn in if_tag.getElementsByTagName("method"):
1592
if (cn.getAttribute("name")
1593
== "GetManagedObjects"):
1594
for arg in cn.getElementsByTagName("arg"):
1595
if (arg.getAttribute("direction")
1596
== "out"):
1597
arg.setAttribute(
1598
"name",
1599
"objpath_interfaces"
1600
"_and_properties")
1601
xmlstring = document.toxml("utf-8")
1602
document.unlink()
1603
except (AttributeError, xml.dom.DOMException,
1604
xml.parsers.expat.ExpatError) as error:
1605
logger.error("Failed to override Introspection method",
1606
exc_info=error)
1607
return xmlstring
1608
1609
1610
def datetime_to_dbus(dt, variant_level=0):
926
error)
927
return xmlstring
928
929
930
def datetime_to_dbus (dt, variant_level=0):
1611
931
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1612
932
if dt is None:
1613
return dbus.String("", variant_level=variant_level)
1614
return dbus.String(dt.isoformat(), variant_level=variant_level)
1615
1616
1617
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1618
"""A class decorator; applied to a subclass of
1619
dbus.service.Object, it will add alternate D-Bus attributes with
1620
interface names according to the "alt_interface_names" mapping.
1621
Usage:
1622
1623
@alternate_dbus_interfaces({"org.example.Interface":
1624
"net.example.AlternateInterface"})
1625
class SampleDBusObject(dbus.service.Object):
1626
@dbus.service.method("org.example.Interface")
1627
def SampleDBusMethod():
1628
pass
1629
1630
The above "SampleDBusMethod" on "SampleDBusObject" will be
1631
reachable via two interfaces: "org.example.Interface" and
1632
"net.example.AlternateInterface", the latter of which will have
1633
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1634
"true", unless "deprecate" is passed with a False value.
1635
1636
This works for methods and signals, and also for D-Bus properties
1637
(from DBusObjectWithProperties) and interfaces (from the
1638
dbus_interface_annotations decorator).
933
return dbus.String("", variant_level = variant_level)
934
return dbus.String(dt.isoformat(),
935
variant_level=variant_level)
936
937
938
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
939
.__metaclass__):
940
"""Applied to an empty subclass of a D-Bus object, this metaclass
941
will add additional D-Bus attributes matching a certain pattern.
1639
942
"""
1640
1641
def wrapper(cls):
1642
for orig_interface_name, alt_interface_name in (
1643
alt_interface_names.items()):
1644
attr = {}
1645
interface_names = set()
1646
# Go though all attributes of the class
1647
for attrname, attribute in inspect.getmembers(cls):
943
def __new__(mcs, name, bases, attr):
944
# Go through all the base classes which could have D-Bus
945
# methods, signals, or properties in them
946
for base in (b for b in bases
947
if issubclass(b, dbus.service.Object)):
948
# Go though all attributes of the base class
949
for attrname, attribute in inspect.getmembers(base):
1648
950
# Ignore non-D-Bus attributes, and D-Bus attributes
1649
951
# with the wrong interface name
1650
952
if (not hasattr(attribute, "_dbus_interface")
1651
or not attribute._dbus_interface.startswith(
1652
orig_interface_name)):
953
or not attribute._dbus_interface
954
.startswith("se.recompile.Mandos")):
1653
955
continue
1654
956
# Create an alternate D-Bus interface name based on
1655
957
# the current name
1656
alt_interface = attribute._dbus_interface.replace(
1657
orig_interface_name, alt_interface_name)
1658
interface_names.add(alt_interface)
958
alt_interface = (attribute._dbus_interface
959
.replace("se.recompile.Mandos",
960
"se.bsnet.fukt.Mandos"))
1659
961
# Is this a D-Bus signal?
1660
962
if getattr(attribute, "_dbus_is_signal", False):
1661
# Extract the original non-method undecorated
1662
# function by black magic
1663
if sys.version_info.major == 2:
1664
nonmethod_func = (dict(
963
# Extract the original non-method function by
964
# black magic
965
nonmethod_func = (dict(
1665
966
zip(attribute.func_code.co_freevars,
1666
attribute.__closure__))
1667
["func"].cell_contents)
1668
else:
1669
nonmethod_func = (dict(
1670
zip(attribute.__code__.co_freevars,
1671
attribute.__closure__))
1672
["func"].cell_contents)
967
attribute.__closure__))["func"]
968
.cell_contents)
1673
969
# Create a new, but exactly alike, function
1674
970
# object, and decorate it to be a new D-Bus signal
1675
971
# with the alternate D-Bus interface name
1676
new_function = copy_function(nonmethod_func)
1677
new_function = (dbus.service.signal(
1678
alt_interface,
1679
attribute._dbus_signature)(new_function))
1680
# Copy annotations, if any
1681
try:
1682
new_function._dbus_annotations = dict(
1683
attribute._dbus_annotations)
1684
except AttributeError:
1685
pass
1686
972
new_function = (dbus.service.signal
973
(alt_interface,
974
attribute._dbus_signature)
975
(types.FunctionType(
976
nonmethod_func.func_code,
977
nonmethod_func.func_globals,
978
nonmethod_func.func_name,
979
nonmethod_func.func_defaults,
980
nonmethod_func.func_closure)))
1687
981
# Define a creator of a function to call both the
1688
# original and alternate functions, so both the
1689
# original and alternate signals gets sent when
1690
# the function is called
982
# old and new functions, so both the old and new
983
# signals gets sent when the function is called
1691
984
def fixscope(func1, func2):
1692
985
"""This function is a scope container to pass
1693
986
func1 and func2 to the "call_both" function
1694
987
outside of its arguments"""
1695
1696
@functools.wraps(func2)
1697
988
def call_both(*args, **kwargs):
1698
989
"""This function will emit two D-Bus
1699
990
signals by calling func1 and func2"""
1700
991
func1(*args, **kwargs)
1701
992
func2(*args, **kwargs)
1702
# Make wrapper function look like a D-Bus
1703
# signal
1704
for name, attr in inspect.getmembers(func2):
1705
if name.startswith("_dbus_"):
1706
setattr(call_both, name, attr)
1707
1708
993
return call_both
1709
994
# Create the "call_both" function and add it to
1710
995
# the class
1711
attr[attrname] = fixscope(attribute, new_function)
996
attr[attrname] = fixscope(attribute,
997
new_function)
1712
998
# Is this a D-Bus method?
1713
999
elif getattr(attribute, "_dbus_is_method", False):
1714
1000
# Create a new, but exactly alike, function
1715
1001
# object. Decorate it to be a new D-Bus method
1716
1002
# with the alternate D-Bus interface name. Add it
1717
1003
# to the class.
1718
attr[attrname] = (
1719
dbus.service.method(
1720
alt_interface,
1721
attribute._dbus_in_signature,
1722
attribute._dbus_out_signature)
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
1004
attr[attrname] = (dbus.service.method
1005
(alt_interface,
1006
attribute._dbus_in_signature,
1007
attribute._dbus_out_signature)
1008
(types.FunctionType
1009
(attribute.func_code,
1010
attribute.func_globals,
1011
attribute.func_name,
1012
attribute.func_defaults,
1013
attribute.func_closure)))
1730
1014
# Is this a D-Bus property?
1731
1015
elif getattr(attribute, "_dbus_is_property", False):
1732
1016
# Create a new, but exactly alike, function
1733
1017
# object, and decorate it to be a new D-Bus
1734
1018
# property with the alternate D-Bus interface
1735
1019
# name. Add it to the class.
1736
attr[attrname] = (dbus_service_property(
1737
alt_interface, attribute._dbus_signature,
1738
attribute._dbus_access,
1739
attribute._dbus_get_args_options
1740
["byte_arrays"])
1741
(copy_function(attribute)))
1742
# Copy annotations, if any
1743
try:
1744
attr[attrname]._dbus_annotations = dict(
1745
attribute._dbus_annotations)
1746
except AttributeError:
1747
pass
1748
# Is this a D-Bus interface?
1749
elif getattr(attribute, "_dbus_is_interface", False):
1750
# Create a new, but exactly alike, function
1751
# object. Decorate it to be a new D-Bus interface
1752
# with the alternate D-Bus interface name. Add it
1753
# to the class.
1754
attr[attrname] = (
1755
dbus_interface_annotations(alt_interface)
1756
(copy_function(attribute)))
1757
if deprecate:
1758
# Deprecate all alternate interfaces
1759
iname = "_AlternateDBusNames_interface_annotation{}"
1760
for interface_name in interface_names:
1761
1762
@dbus_interface_annotations(interface_name)
1763
def func(self):
1764
return {"org.freedesktop.DBus.Deprecated":
1765
"true"}
1766
# Find an unused name
1767
for aname in (iname.format(i)
1768
for i in itertools.count()):
1769
if aname not in attr:
1770
attr[aname] = func
1771
break
1772
if interface_names:
1773
# Replace the class with a new subclass of it with
1774
# methods, signals, etc. as created above.
1775
if sys.version_info.major == 2:
1776
cls = type(b"{}Alternate".format(cls.__name__),
1777
(cls, ), attr)
1778
else:
1779
cls = type("{}Alternate".format(cls.__name__),
1780
(cls, ), attr)
1781
return cls
1782
1783
return wrapper
1784
1785
1786
@alternate_dbus_interfaces({"se.recompile.Mandos":
1787
"se.bsnet.fukt.Mandos"})
1020
attr[attrname] = (dbus_service_property
1021
(alt_interface,
1022
attribute._dbus_signature,
1023
attribute._dbus_access,
1024
attribute
1025
._dbus_get_args_options
1026
["byte_arrays"])
1027
(types.FunctionType
1028
(attribute.func_code,
1029
attribute.func_globals,
1030
attribute.func_name,
1031
attribute.func_defaults,
1032
attribute.func_closure)))
1033
return type.__new__(mcs, name, bases, attr)
1034
1035
1788
1036
class ClientDBus(Client, DBusObjectWithProperties):
1789
1037
"""A Client class using D-Bus
1790
1038
1791
1039
Attributes:
1792
1040
dbus_object_path: dbus.ObjectPath
1793
1041
bus: dbus.SystemBus()
1794
1042
"""
1795
1043
1796
1044
runtime_expansions = (Client.runtime_expansions
1797
+ ("dbus_object_path", ))
1798
1799
_interface = "se.recompile.Mandos.Client"
1800
1045
+ ("dbus_object_path",))
1046
1801
1047
# dbus.service.Object doesn't use super(), so we can't either.
1802
1803
def __init__(self, bus=None, *args, **kwargs):
1048
1049
def __init__(self, bus = None, *args, **kwargs):
1804
1050
self.bus = bus
1805
1051
Client.__init__(self, *args, **kwargs)
1052
self._approvals_pending = 0
1053
1054
self._approvals_pending = 0
1806
1055
# Only now, when this client is initialized, can it show up on
1807
1056
# the D-Bus
1808
client_object_name = str(self.name).translate(
1057
client_object_name = unicode(self.name).translate(
1809
1058
{ord("."): ord("_"),
1810
1059
ord("-"): ord("_")})
1811
self.dbus_object_path = dbus.ObjectPath(
1812
"/clients/" + client_object_name)
1060
self.dbus_object_path = (dbus.ObjectPath
1061
("/clients/" + client_object_name))
1813
1062
DBusObjectWithProperties.__init__(self, self.bus,
1814
1063
self.dbus_object_path)
1815
1816
def notifychangeproperty(transform_func, dbus_name,
1817
type_func=lambda x: x,
1818
variant_level=1,
1819
invalidate_only=False,
1820
_interface=_interface):
1064
1065
def notifychangeproperty(transform_func,
1066
dbus_name, type_func=lambda x: x,
1067
variant_level=1):
1821
1068
""" Modify a variable so that it's a property which announces
1822
1069
its changes to DBus.
1823
1070
1824
1071
transform_fun: Function that takes a value and a variant_level
1825
1072
and transforms it to a D-Bus type.
1826
1073
dbus_name: D-Bus name of the variable
1828
1075
to the D-Bus. Default: no transform
1829
1076
variant_level: D-Bus variant level. Default: 1
1830
1077
"""
1831
attrname = "_{}".format(dbus_name)
1832
1078
attrname = "_{0}".format(dbus_name)
1833
1079
def setter(self, value):
1834
1080
if hasattr(self, "dbus_object_path"):
1835
1081
if (not hasattr(self, attrname) or
1836
1082
type_func(getattr(self, attrname, None))
1837
1083
!= type_func(value)):
1838
if invalidate_only:
1839
self.PropertiesChanged(
1840
_interface, dbus.Dictionary(),
1841
dbus.Array((dbus_name, )))
1842
else:
1843
dbus_value = transform_func(
1844
type_func(value),
1845
variant_level=variant_level)
1846
self.PropertyChanged(dbus.String(dbus_name),
1847
dbus_value)
1848
self.PropertiesChanged(
1849
_interface,
1850
dbus.Dictionary({dbus.String(dbus_name):
1851
dbus_value}),
1852
dbus.Array())
1084
dbus_value = transform_func(type_func(value),
1085
variant_level
1086
=variant_level)
1087
self.PropertyChanged(dbus.String(dbus_name),
1088
dbus_value)
1853
1089
setattr(self, attrname, value)
1854
1090
1855
1091
return property(lambda self: getattr(self, attrname), setter)
1856
1092
1093
1857
1094
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1858
1095
approvals_pending = notifychangeproperty(dbus.Boolean,
1859
1096
"ApprovalPending",
1860
type_func=bool)
1097
type_func = bool)
1861
1098
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1862
1099
last_enabled = notifychangeproperty(datetime_to_dbus,
1863
1100
"LastEnabled")
1864
checker = notifychangeproperty(
1865
dbus.Boolean, "CheckerRunning",
1866
type_func=lambda checker: checker is not None)
1101
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1102
type_func = lambda checker:
1103
checker is not None)
1867
1104
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1868
1105
"LastCheckedOK")
1869
last_checker_status = notifychangeproperty(dbus.Int16,
1870
"LastCheckerStatus")
1871
1106
last_approval_request = notifychangeproperty(
1872
1107
datetime_to_dbus, "LastApprovalRequest")
1873
1108
approved_by_default = notifychangeproperty(dbus.Boolean,
1874
1109
"ApprovedByDefault")
1875
approval_delay = notifychangeproperty(
1876
dbus.UInt64, "ApprovalDelay",
1877
type_func=lambda td: td.total_seconds() * 1000)
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1878
1114
approval_duration = notifychangeproperty(
1879
1115
dbus.UInt64, "ApprovalDuration",
1880
type_func=lambda td: td.total_seconds() * 1000)
1116
type_func = timedelta_to_milliseconds)
1881
1117
host = notifychangeproperty(dbus.String, "Host")
1882
timeout = notifychangeproperty(
1883
dbus.UInt64, "Timeout",
1884
type_func=lambda td: td.total_seconds() * 1000)
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1885
1121
extended_timeout = notifychangeproperty(
1886
1122
dbus.UInt64, "ExtendedTimeout",
1887
type_func=lambda td: td.total_seconds() * 1000)
1888
interval = notifychangeproperty(
1889
dbus.UInt64, "Interval",
1890
type_func=lambda td: td.total_seconds() * 1000)
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1891
1128
checker_command = notifychangeproperty(dbus.String, "Checker")
1892
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1893
invalidate_only=True)
1894
1129
1895
1130
del notifychangeproperty
1896
1131
1897
1132
def __del__(self, *args, **kwargs):
1898
1133
try:
1899
1134
self.remove_from_connection()
1902
1137
if hasattr(DBusObjectWithProperties, "__del__"):
1903
1138
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1904
1139
Client.__del__(self, *args, **kwargs)
1905
1906
def checker_callback(self, source, condition,
1907
connection, command, *args, **kwargs):
1908
ret = Client.checker_callback(self, source, condition,
1909
connection, command, *args,
1910
**kwargs)
1911
exitstatus = self.last_checker_status
1912
if exitstatus >= 0:
1140
1141
def checker_callback(self, pid, condition, command,
1142
*args, **kwargs):
1143
self.checker_callback_tag = None
1144
self.checker = None
1145
if os.WIFEXITED(condition):
1146
exitstatus = os.WEXITSTATUS(condition)
1913
1147
# Emit D-Bus signal
1914
1148
self.CheckerCompleted(dbus.Int16(exitstatus),
1915
# This is specific to GNU libC
1916
dbus.Int64(exitstatus << 8),
1149
dbus.Int64(condition),
1917
1150
dbus.String(command))
1918
1151
else:
1919
1152
# Emit D-Bus signal
1920
1153
self.CheckerCompleted(dbus.Int16(-1),
1921
dbus.Int64(
1922
# This is specific to GNU libC
1923
(exitstatus << 8)
1924
| self.last_checker_signal),
1154
dbus.Int64(condition),
1925
1155
dbus.String(command))
1926
return ret
1927
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1159
1928
1160
def start_checker(self, *args, **kwargs):
1929
old_checker_pid = getattr(self.checker, "pid", None)
1161
old_checker = self.checker
1162
if self.checker is not None:
1163
old_checker_pid = self.checker.pid
1164
else:
1165
old_checker_pid = None
1930
1166
r = Client.start_checker(self, *args, **kwargs)
1931
1167
# Only if new checker process was started
1932
1168
if (self.checker is not None
1934
1170
# Emit D-Bus signal
1935
1171
self.CheckerStarted(self.current_checker_command)
1936
1172
return r
1937
1173
1938
1174
def _reset_approved(self):
1939
1175
self.approved = None
1940
1176
return False
1941
1177
1942
1178
def approve(self, value=True):
1179
self.send_changedstate()
1943
1180
self.approved = value
1944
GLib.timeout_add(int(self.approval_duration.total_seconds()
1945
* 1000), self._reset_approved)
1946
self.send_changedstate()
1947
1948
# D-Bus methods, signals & properties
1949
1950
# Interfaces
1951
1952
# Signals
1953
1181
gobject.timeout_add(timedelta_to_milliseconds
1182
(self.approval_duration),
1183
self._reset_approved)
1184
1185
1186
## D-Bus methods, signals & properties
1187
_interface = "se.recompile.Mandos.Client"
1188
1189
## Signals
1190
1954
1191
# CheckerCompleted - signal
1955
1192
@dbus.service.signal(_interface, signature="nxs")
1956
1193
def CheckerCompleted(self, exitcode, waitstatus, command):
1957
1194
"D-Bus signal"
1958
1195
pass
1959
1196
1960
1197
# CheckerStarted - signal
1961
1198
@dbus.service.signal(_interface, signature="s")
1962
1199
def CheckerStarted(self, command):
1963
1200
"D-Bus signal"
1964
1201
pass
1965
1202
1966
1203
# PropertyChanged - signal
1967
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1968
1204
@dbus.service.signal(_interface, signature="sv")
1969
1205
def PropertyChanged(self, property, value):
1970
1206
"D-Bus signal"
1971
1207
pass
1972
1208
1973
1209
# GotSecret - signal
1974
1210
@dbus.service.signal(_interface)
1975
1211
def GotSecret(self):
1978
1214
server to mandos-client
1979
1215
"""
1980
1216
pass
1981
1217
1982
1218
# Rejected - signal
1983
1219
@dbus.service.signal(_interface, signature="s")
1984
1220
def Rejected(self, reason):
1985
1221
"D-Bus signal"
1986
1222
pass
1987
1223
1988
1224
# NeedApproval - signal
1989
1225
@dbus.service.signal(_interface, signature="tb")
1990
1226
def NeedApproval(self, timeout, default):
1991
1227
"D-Bus signal"
1992
1228
return self.need_approval()
1993
1994
# Methods
1995
1229
1230
# NeRwequest - signal
1231
@dbus.service.signal(_interface, signature="s")
1232
def NewRequest(self, ip):
1233
"""D-Bus signal
1234
Is sent after a client request a password.
1235
"""
1236
pass
1237
1238
## Methods
1239
1996
1240
# Approve - method
1997
1241
@dbus.service.method(_interface, in_signature="b")
1998
1242
def Approve(self, value):
1999
1243
self.approve(value)
2000
1244
2001
1245
# CheckedOK - method
2002
1246
@dbus.service.method(_interface)
2003
1247
def CheckedOK(self):
2004
1248
self.checked_ok()
2005
1249
2006
1250
# Enable - method
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2008
1251
@dbus.service.method(_interface)
2009
1252
def Enable(self):
2010
1253
"D-Bus method"
2011
1254
self.enable()
2012
1255
2013
1256
# StartChecker - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2015
1257
@dbus.service.method(_interface)
2016
1258
def StartChecker(self):
2017
1259
"D-Bus method"
2018
1260
self.start_checker()
2019
1261
2020
1262
# Disable - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2022
1263
@dbus.service.method(_interface)
2023
1264
def Disable(self):
2024
1265
"D-Bus method"
2025
1266
self.disable()
2026
1267
2027
1268
# StopChecker - method
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2029
1269
@dbus.service.method(_interface)
2030
1270
def StopChecker(self):
2031
1271
self.stop_checker()
2032
2033
# Properties
2034
1272
1273
## Properties
1274
2035
1275
# ApprovalPending - property
2036
1276
@dbus_service_property(_interface, signature="b", access="read")
2037
1277
def ApprovalPending_dbus_property(self):
2038
1278
return dbus.Boolean(bool(self.approvals_pending))
2039
1279
2040
1280
# ApprovedByDefault - property
2041
@dbus_service_property(_interface,
2042
signature="b",
1281
@dbus_service_property(_interface, signature="b",
2043
1282
access="readwrite")
2044
1283
def ApprovedByDefault_dbus_property(self, value=None):
2045
1284
if value is None: # get
2046
1285
return dbus.Boolean(self.approved_by_default)
2047
1286
self.approved_by_default = bool(value)
2048
1287
2049
1288
# ApprovalDelay - property
2050
@dbus_service_property(_interface,
2051
signature="t",
1289
@dbus_service_property(_interface, signature="t",
2052
1290
access="readwrite")
2053
1291
def ApprovalDelay_dbus_property(self, value=None):
2054
1292
if value is None: # get
2055
return dbus.UInt64(self.approval_delay.total_seconds()
2056
* 1000)
1293
return dbus.UInt64(self.approval_delay_milliseconds())
2057
1294
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2058
1295
2059
1296
# ApprovalDuration - property
2060
@dbus_service_property(_interface,
2061
signature="t",
1297
@dbus_service_property(_interface, signature="t",
2062
1298
access="readwrite")
2063
1299
def ApprovalDuration_dbus_property(self, value=None):
2064
1300
if value is None: # get
2065
return dbus.UInt64(self.approval_duration.total_seconds()
2066
* 1000)
1301
return dbus.UInt64(timedelta_to_milliseconds(
1302
self.approval_duration))
2067
1303
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2068
1304
2069
1305
# Name - property
2070
@dbus_annotations(
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2072
1306
@dbus_service_property(_interface, signature="s", access="read")
2073
1307
def Name_dbus_property(self):
2074
1308
return dbus.String(self.name)
2075
2076
# KeyID - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
@dbus_service_property(_interface, signature="s", access="read")
2080
def KeyID_dbus_property(self):
2081
return dbus.String(self.key_id)
2082
1309
2083
1310
# Fingerprint - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
1311
@dbus_service_property(_interface, signature="s", access="read")
2087
1312
def Fingerprint_dbus_property(self):
2088
1313
return dbus.String(self.fingerprint)
2089
1314
2090
1315
# Host - property
2091
@dbus_service_property(_interface,
2092
signature="s",
1316
@dbus_service_property(_interface, signature="s",
2093
1317
access="readwrite")
2094
1318
def Host_dbus_property(self, value=None):
2095
1319
if value is None: # get
2096
1320
return dbus.String(self.host)
2097
self.host = str(value)
2098
1321
self.host = unicode(value)
1322
2099
1323
# Created - property
2100
@dbus_annotations(
2101
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2102
1324
@dbus_service_property(_interface, signature="s", access="read")
2103
1325
def Created_dbus_property(self):
2104
1326
return datetime_to_dbus(self.created)
2105
1327
2106
1328
# LastEnabled - property
2107
1329
@dbus_service_property(_interface, signature="s", access="read")
2108
1330
def LastEnabled_dbus_property(self):
2109
1331
return datetime_to_dbus(self.last_enabled)
2110
1332
2111
1333
# Enabled - property
2112
@dbus_service_property(_interface,
2113
signature="b",
1334
@dbus_service_property(_interface, signature="b",
2114
1335
access="readwrite")
2115
1336
def Enabled_dbus_property(self, value=None):
2116
1337
if value is None: # get
2119
1340
self.enable()
2120
1341
else:
2121
1342
self.disable()
2122
1343
2123
1344
# LastCheckedOK - property
2124
@dbus_service_property(_interface,
2125
signature="s",
1345
@dbus_service_property(_interface, signature="s",
2126
1346
access="readwrite")
2127
1347
def LastCheckedOK_dbus_property(self, value=None):
2128
1348
if value is not None:
2129
1349
self.checked_ok()
2130
1350
return
2131
1351
return datetime_to_dbus(self.last_checked_ok)
2132
2133
# LastCheckerStatus - property
2134
@dbus_service_property(_interface, signature="n", access="read")
2135
def LastCheckerStatus_dbus_property(self):
2136
return dbus.Int16(self.last_checker_status)
2137
1352
2138
1353
# Expires - property
2139
1354
@dbus_service_property(_interface, signature="s", access="read")
2140
1355
def Expires_dbus_property(self):
2141
1356
return datetime_to_dbus(self.expires)
2142
1357
2143
1358
# LastApprovalRequest - property
2144
1359
@dbus_service_property(_interface, signature="s", access="read")
2145
1360
def LastApprovalRequest_dbus_property(self):
2146
1361
return datetime_to_dbus(self.last_approval_request)
2147
1362
2148
1363
# Timeout - property
2149
@dbus_service_property(_interface,
2150
signature="t",
1364
@dbus_service_property(_interface, signature="t",
2151
1365
access="readwrite")
2152
1366
def Timeout_dbus_property(self, value=None):
2153
1367
if value is None: # get
2154
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2155
old_timeout = self.timeout
1368
return dbus.UInt64(self.timeout_milliseconds())
2156
1369
self.timeout = datetime.timedelta(0, 0, 0, value)
2157
# Reschedule disabling
1370
# Reschedule timeout
2158
1371
if self.enabled:
2159
1372
now = datetime.datetime.utcnow()
2160
self.expires += self.timeout - old_timeout
2161
if self.expires <= now:
1373
time_to_die = timedelta_to_milliseconds(
1374
(self.last_checked_ok + self.timeout) - now)
1375
if time_to_die <= 0:
2162
1376
# The timeout has passed
2163
1377
self.disable()
2164
1378
else:
1379
self.expires = (now +
1380
datetime.timedelta(milliseconds =
1381
time_to_die))
2165
1382
if (getattr(self, "disable_initiator_tag", None)
2166
1383
is None):
2167
1384
return
2168
GLib.source_remove(self.disable_initiator_tag)
2169
self.disable_initiator_tag = GLib.timeout_add(
2170
int((self.expires - now).total_seconds() * 1000),
2171
self.disable)
2172
1385
gobject.source_remove(self.disable_initiator_tag)
1386
self.disable_initiator_tag = (gobject.timeout_add
1387
(time_to_die,
1388
self.disable))
1389
2173
1390
# ExtendedTimeout - property
2174
@dbus_service_property(_interface,
2175
signature="t",
1391
@dbus_service_property(_interface, signature="t",
2176
1392
access="readwrite")
2177
1393
def ExtendedTimeout_dbus_property(self, value=None):
2178
1394
if value is None: # get
2179
return dbus.UInt64(self.extended_timeout.total_seconds()
2180
* 1000)
1395
return dbus.UInt64(self.extended_timeout_milliseconds())
2181
1396
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2182
1397
2183
1398
# Interval - property
2184
@dbus_service_property(_interface,
2185
signature="t",
1399
@dbus_service_property(_interface, signature="t",
2186
1400
access="readwrite")
2187
1401
def Interval_dbus_property(self, value=None):
2188
1402
if value is None: # get
2189
return dbus.UInt64(self.interval.total_seconds() * 1000)
1403
return dbus.UInt64(self.interval_milliseconds())
2190
1404
self.interval = datetime.timedelta(0, 0, 0, value)
2191
1405
if getattr(self, "checker_initiator_tag", None) is None:
2192
1406
return
2193
1407
if self.enabled:
2194
1408
# Reschedule checker run
2195
GLib.source_remove(self.checker_initiator_tag)
2196
self.checker_initiator_tag = GLib.timeout_add(
2197
value, self.start_checker)
2198
self.start_checker() # Start one now, too
2199
1409
gobject.source_remove(self.checker_initiator_tag)
1410
self.checker_initiator_tag = (gobject.timeout_add
1411
(value, self.start_checker))
1412
self.start_checker() # Start one now, too
1413
2200
1414
# Checker - property
2201
@dbus_service_property(_interface,
2202
signature="s",
1415
@dbus_service_property(_interface, signature="s",
2203
1416
access="readwrite")
2204
1417
def Checker_dbus_property(self, value=None):
2205
1418
if value is None: # get
2206
1419
return dbus.String(self.checker_command)
2207
self.checker_command = str(value)
2208
1420
self.checker_command = unicode(value)
1421
2209
1422
# CheckerRunning - property
2210
@dbus_service_property(_interface,
2211
signature="b",
1423
@dbus_service_property(_interface, signature="b",
2212
1424
access="readwrite")
2213
1425
def CheckerRunning_dbus_property(self, value=None):
2214
1426
if value is None: # get
2217
1429
self.start_checker()
2218
1430
else:
2219
1431
self.stop_checker()
2220
1432
2221
1433
# ObjectPath - property
2222
@dbus_annotations(
2223
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2224
"org.freedesktop.DBus.Deprecated": "true"})
2225
1434
@dbus_service_property(_interface, signature="o", access="read")
2226
1435
def ObjectPath_dbus_property(self):
2227
return self.dbus_object_path # is already a dbus.ObjectPath
2228
1436
return self.dbus_object_path # is already a dbus.ObjectPath
1437
2229
1438
# Secret = property
2230
@dbus_annotations(
2231
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2232
"invalidates"})
2233
@dbus_service_property(_interface,
2234
signature="ay",
2235
access="write",
2236
byte_arrays=True)
1439
@dbus_service_property(_interface, signature="ay",
1440
access="write", byte_arrays=True)
2237
1441
def Secret_dbus_property(self, value):
2238
self.secret = bytes(value)
2239
1442
self.secret = str(value)
1443
2240
1444
del _interface
2241
1445
2242
1446
2243
class ProxyClient:
2244
def __init__(self, child_pipe, key_id, fpr, address):
1447
class ProxyClient(object):
1448
def __init__(self, child_pipe, fpr, address):
2245
1449
self._pipe = child_pipe
2246
self._pipe.send(('init', key_id, fpr, address))
1450
self._pipe.send(('init', fpr, address))
2247
1451
if not self._pipe.recv():
2248
raise KeyError(key_id or fpr)
2249
1452
raise KeyError()
1453
2250
1454
def __getattribute__(self, name):
2251
1455
if name == '_pipe':
2252
1456
return super(ProxyClient, self).__getattribute__(name)
2255
1459
if data[0] == 'data':
2256
1460
return data[1]
2257
1461
if data[0] == 'function':
2258
2259
1462
def func(*args, **kwargs):
2260
1463
self._pipe.send(('funcall', name, args, kwargs))
2261
1464
return self._pipe.recv()[1]
2262
2263
1465
return func
2264
1466
2265
1467
def __setattr__(self, name, value):
2266
1468
if name == '_pipe':
2267
1469
return super(ProxyClient, self).__setattr__(name, value)
2268
1470
self._pipe.send(('setattr', name, value))
2269
1471
2270
1472
1473
class ClientDBusTransitional(ClientDBus):
1474
__metaclass__ = AlternateDBusNamesMetaclass
1475
1476
2271
1477
class ClientHandler(socketserver.BaseRequestHandler, object):
2272
1478
"""A class to handle client connections.
2273
1479
2274
1480
Instantiated once for each connection to handle it.
2275
1481
Note: This will run in its own forked process."""
2276
1482
2277
1483
def handle(self):
2278
1484
with contextlib.closing(self.server.child_pipe) as child_pipe:
2279
1485
logger.info("TCP connection from: %s",
2280
str(self.client_address))
1486
unicode(self.client_address))
2281
1487
logger.debug("Pipe FD: %d",
2282
1488
self.server.child_pipe.fileno())
2283
2284
session = gnutls.ClientSession(self.request)
2285
2286
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2287
# "+AES-256-CBC", "+SHA1",
2288
# "+COMP-NULL", "+CTYPE-OPENPGP",
2289
# "+DHE-DSS"))
1489
1490
session = (gnutls.connection
1491
.ClientSession(self.request,
1492
gnutls.connection
1493
.X509Credentials()))
1494
1495
# Note: gnutls.connection.X509Credentials is really a
1496
# generic GnuTLS certificate credentials object so long as
1497
# no X.509 keys are added to it. Therefore, we can use it
1498
# here despite using OpenPGP certificates.
1499
1500
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1501
# "+AES-256-CBC", "+SHA1",
1502
# "+COMP-NULL", "+CTYPE-OPENPGP",
1503
# "+DHE-DSS"))
2290
1504
# Use a fallback default, since this MUST be set.
2291
1505
priority = self.server.gnutls_priority
2292
1506
if priority is None:
2293
1507
priority = "NORMAL"
2294
gnutls.priority_set_direct(session._c_object,
2295
priority.encode("utf-8"),
2296
None)
2297
1508
(gnutls.library.functions
1509
.gnutls_priority_set_direct(session._c_object,
1510
priority, None))
1511
2298
1512
# Start communication using the Mandos protocol
2299
1513
# Get protocol number
2300
1514
line = self.request.makefile().readline()
2301
1515
logger.debug("Protocol version: %r", line)
2302
1516
try:
2303
1517
if int(line.strip().split()[0]) > 1:
2304
raise RuntimeError(line)
1518
raise RuntimeError
2305
1519
except (ValueError, IndexError, RuntimeError) as error:
2306
1520
logger.error("Unknown protocol version: %s", error)
2307
1521
return
2308
1522
2309
1523
# Start GnuTLS connection
2310
1524
try:
2311
1525
session.handshake()
2312
except gnutls.Error as error:
1526
except gnutls.errors.GNUTLSError as error:
2313
1527
logger.warning("Handshake failed: %s", error)
2314
1528
# Do not run session.bye() here: the session is not
2315
1529
# established. Just abandon the request.
2316
1530
return
2317
1531
logger.debug("Handshake succeeded")
2318
1532
2319
1533
approval_required = False
2320
1534
try:
2321
if gnutls.has_rawpk:
2322
fpr = b""
2323
try:
2324
key_id = self.key_id(
2325
self.peer_certificate(session))
2326
except (TypeError, gnutls.Error) as error:
2327
logger.warning("Bad certificate: %s", error)
2328
return
2329
logger.debug("Key ID: %s", key_id)
2330
2331
else:
2332
key_id = b""
2333
try:
2334
fpr = self.fingerprint(
2335
self.peer_certificate(session))
2336
except (TypeError, gnutls.Error) as error:
2337
logger.warning("Bad certificate: %s", error)
2338
return
2339
logger.debug("Fingerprint: %s", fpr)
2340
2341
try:
2342
client = ProxyClient(child_pipe, key_id, fpr,
1535
try:
1536
fpr = self.fingerprint(self.peer_certificate
1537
(session))
1538
except (TypeError,
1539
gnutls.errors.GNUTLSError) as error:
1540
logger.warning("Bad certificate: %s", error)
1541
return
1542
logger.debug("Fingerprint: %s", fpr)
1543
1544
try:
1545
client = ProxyClient(child_pipe, fpr,
2343
1546
self.client_address)
2344
1547
except KeyError:
2345
1548
return
2346
1549
1550
if self.server.use_dbus:
1551
# Emit D-Bus signal
1552
client.NewRequest(str(self.client_address))
1553
2347
1554
if client.approval_delay:
2348
1555
delay = client.approval_delay
2349
1556
client.approvals_pending += 1
2350
1557
approval_required = True
2351
1558
2352
1559
while True:
2353
1560
if not client.enabled:
2354
1561
logger.info("Client %s is disabled",
2355
client.name)
1562
client.name)
2356
1563
if self.server.use_dbus:
2357
1564
# Emit D-Bus signal
2358
1565
client.Rejected("Disabled")
2359
1566
return
2360
1567
2361
1568
if client.approved or not client.approval_delay:
2362
# We are approved or approval is disabled
1569
#We are approved or approval is disabled
2363
1570
break
2364
1571
elif client.approved is None:
2365
1572
logger.info("Client %s needs approval",
2367
1574
if self.server.use_dbus:
2368
1575
# Emit D-Bus signal
2369
1576
client.NeedApproval(
2370
client.approval_delay.total_seconds()
2371
* 1000, client.approved_by_default)
1577
client.approval_delay_milliseconds(),
1578
client.approved_by_default)
2372
1579
else:
2373
1580
logger.warning("Client %s was not approved",
2374
1581
client.name)
2376
1583
# Emit D-Bus signal
2377
1584
client.Rejected("Denied")
2378
1585
return
2379
2380
# wait until timeout or approved
1586
1587
#wait until timeout or approved
2381
1588
time = datetime.datetime.now()
2382
1589
client.changedstate.acquire()
2383
client.changedstate.wait(delay.total_seconds())
1590
(client.changedstate.wait
1591
(float(client.timedelta_to_milliseconds(delay)
1592
/ 1000)))
2384
1593
client.changedstate.release()
2385
1594
time2 = datetime.datetime.now()
2386
1595
if (time2 - time) >= delay:
2396
1605
break
2397
1606
else:
2398
1607
delay -= time2 - time
2399
2400
try:
2401
session.send(client.secret)
2402
except gnutls.Error as error:
2403
logger.warning("gnutls send failed",
2404
exc_info=error)
2405
return
2406
1608
1609
sent_size = 0
1610
while sent_size < len(client.secret):
1611
try:
1612
sent = session.send(client.secret[sent_size:])
1613
except gnutls.errors.GNUTLSError as error:
1614
logger.warning("gnutls send failed")
1615
return
1616
logger.debug("Sent: %d, remaining: %d",
1617
sent, len(client.secret)
1618
- (sent_size + sent))
1619
sent_size += sent
1620
2407
1621
logger.info("Sending secret to %s", client.name)
2408
1622
# bump the timeout using extended_timeout
2409
client.bump_timeout(client.extended_timeout)
1623
client.checked_ok(client.extended_timeout)
2410
1624
if self.server.use_dbus:
2411
1625
# Emit D-Bus signal
2412
1626
client.GotSecret()
2413
1627
2414
1628
finally:
2415
1629
if approval_required:
2416
1630
client.approvals_pending -= 1
2417
1631
try:
2418
1632
session.bye()
2419
except gnutls.Error as error:
2420
logger.warning("GnuTLS bye failed",
2421
exc_info=error)
2422
1633
except gnutls.errors.GNUTLSError as error:
1634
logger.warning("GnuTLS bye failed")
1635
2423
1636
@staticmethod
2424
1637
def peer_certificate(session):
2425
"Return the peer's certificate as a bytestring"
2426
try:
2427
cert_type = gnutls.certificate_type_get2(session._c_object,
2428
gnutls.CTYPE_PEERS)
2429
except AttributeError:
2430
cert_type = gnutls.certificate_type_get(session._c_object)
2431
if gnutls.has_rawpk:
2432
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2433
else:
2434
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2435
# If not a valid certificate type...
2436
if cert_type not in valid_cert_types:
2437
logger.info("Cert type %r not in %r", cert_type,
2438
valid_cert_types)
2439
# ...return invalid data
2440
return b""
1638
"Return the peer's OpenPGP certificate as a bytestring"
1639
# If not an OpenPGP certificate...
1640
if (gnutls.library.functions
1641
.gnutls_certificate_type_get(session._c_object)
1642
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1643
# ...do the normal thing
1644
return session.peer_certificate
2441
1645
list_size = ctypes.c_uint(1)
2442
cert_list = (gnutls.certificate_get_peers
1646
cert_list = (gnutls.library.functions
1647
.gnutls_certificate_get_peers
2443
1648
(session._c_object, ctypes.byref(list_size)))
2444
1649
if not bool(cert_list) and list_size.value != 0:
2445
raise gnutls.Error("error getting peer certificate")
1650
raise gnutls.errors.GNUTLSError("error getting peer"
1651
" certificate")
2446
1652
if list_size.value == 0:
2447
1653
return None
2448
1654
cert = cert_list[0]
2449
1655
return ctypes.string_at(cert.data, cert.size)
2450
2451
@staticmethod
2452
def key_id(certificate):
2453
"Convert a certificate bytestring to a hexdigit key ID"
2454
# New GnuTLS "datum" with the public key
2455
datum = gnutls.datum_t(
2456
ctypes.cast(ctypes.c_char_p(certificate),
2457
ctypes.POINTER(ctypes.c_ubyte)),
2458
ctypes.c_uint(len(certificate)))
2459
# XXX all these need to be created in the gnutls "module"
2460
# New empty GnuTLS certificate
2461
pubkey = gnutls.pubkey_t()
2462
gnutls.pubkey_init(ctypes.byref(pubkey))
2463
# Import the raw public key into the certificate
2464
gnutls.pubkey_import(pubkey,
2465
ctypes.byref(datum),
2466
gnutls.X509_FMT_DER)
2467
# New buffer for the key ID
2468
buf = ctypes.create_string_buffer(32)
2469
buf_len = ctypes.c_size_t(len(buf))
2470
# Get the key ID from the raw public key into the buffer
2471
gnutls.pubkey_get_key_id(pubkey,
2472
gnutls.KEYID_USE_SHA256,
2473
ctypes.cast(ctypes.byref(buf),
2474
ctypes.POINTER(ctypes.c_ubyte)),
2475
ctypes.byref(buf_len))
2476
# Deinit the certificate
2477
gnutls.pubkey_deinit(pubkey)
2478
2479
# Convert the buffer to a Python bytestring
2480
key_id = ctypes.string_at(buf, buf_len.value)
2481
# Convert the bytestring to hexadecimal notation
2482
hex_key_id = binascii.hexlify(key_id).upper()
2483
return hex_key_id
2484
1656
2485
1657
@staticmethod
2486
1658
def fingerprint(openpgp):
2487
1659
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2488
1660
# New GnuTLS "datum" with the OpenPGP public key
2489
datum = gnutls.datum_t(
2490
ctypes.cast(ctypes.c_char_p(openpgp),
2491
ctypes.POINTER(ctypes.c_ubyte)),
2492
ctypes.c_uint(len(openpgp)))
1661
datum = (gnutls.library.types
1662
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1663
ctypes.POINTER
1664
(ctypes.c_ubyte)),
1665
ctypes.c_uint(len(openpgp))))
2493
1666
# New empty GnuTLS certificate
2494
crt = gnutls.openpgp_crt_t()
2495
gnutls.openpgp_crt_init(ctypes.byref(crt))
1667
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2496
1670
# Import the OpenPGP public key into the certificate
2497
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2498
gnutls.OPENPGP_FMT_RAW)
1671
(gnutls.library.functions
1672
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1673
gnutls.library.constants
1674
.GNUTLS_OPENPGP_FMT_RAW))
2499
1675
# Verify the self signature in the key
2500
1676
crtverify = ctypes.c_uint()
2501
gnutls.openpgp_crt_verify_self(crt, 0,
2502
ctypes.byref(crtverify))
1677
(gnutls.library.functions
1678
.gnutls_openpgp_crt_verify_self(crt, 0,
1679
ctypes.byref(crtverify)))
2503
1680
if crtverify.value != 0:
2504
gnutls.openpgp_crt_deinit(crt)
2505
raise gnutls.CertificateSecurityError(code
2506
=crtverify.value)
1681
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1682
raise (gnutls.errors.CertificateSecurityError
1683
("Verify failed"))
2507
1684
# New buffer for the fingerprint
2508
1685
buf = ctypes.create_string_buffer(20)
2509
1686
buf_len = ctypes.c_size_t()
2510
1687
# Get the fingerprint from the certificate into the buffer
2511
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2512
ctypes.byref(buf_len))
1688
(gnutls.library.functions
1689
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1690
ctypes.byref(buf_len)))
2513
1691
# Deinit the certificate
2514
gnutls.openpgp_crt_deinit(crt)
1692
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2515
1693
# Convert the buffer to a Python bytestring
2516
1694
fpr = ctypes.string_at(buf, buf_len.value)
2517
1695
# Convert the bytestring to hexadecimal notation
2519
1697
return hex_fpr
2520
1698
2521
1699
2522
class MultiprocessingMixIn:
1700
class MultiprocessingMixIn(object):
2523
1701
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2524
2525
1702
def sub_process_main(self, request, address):
2526
1703
try:
2527
1704
self.finish_request(request, address)
2528
1705
except Exception:
2529
1706
self.handle_error(request, address)
2530
1707
self.close_request(request)
2531
1708
2532
1709
def process_request(self, request, address):
2533
1710
"""Start a new process to process the request."""
2534
proc = multiprocessing.Process(target=self.sub_process_main,
2535
args=(request, address))
1711
proc = multiprocessing.Process(target = self.sub_process_main,
1712
args = (request,
1713
address))
2536
1714
proc.start()
2537
1715
return proc
2538
1716
2539
1717
2540
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1718
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2541
1719
""" adds a pipe to the MixIn """
2542
2543
1720
def process_request(self, request, client_address):
2544
1721
"""Overrides and wraps the original process_request().
2545
1722
2546
1723
This function creates a new pipe in self.pipe
2547
1724
"""
2548
1725
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2549
1726
2550
1727
proc = MultiprocessingMixIn.process_request(self, request,
2551
1728
client_address)
2552
1729
self.child_pipe.close()
2553
1730
self.add_pipe(parent_pipe, proc)
2554
1731
2555
1732
def add_pipe(self, parent_pipe, proc):
2556
1733
"""Dummy function; override as necessary"""
2557
raise NotImplementedError()
1734
raise NotImplementedError
2558
1735
2559
1736
2560
1737
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2561
socketserver.TCPServer):
1738
socketserver.TCPServer, object):
2562
1739
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2563
1740
2564
1741
Attributes:
2565
1742
enabled: Boolean; whether this server is activated yet
2566
1743
interface: None or a network interface name (string)
2567
1744
use_ipv6: Boolean; to use IPv6 or not
2568
1745
"""
2569
2570
1746
def __init__(self, server_address, RequestHandlerClass,
2571
interface=None,
2572
use_ipv6=True,
2573
socketfd=None):
2574
"""If socketfd is set, use that file descriptor instead of
2575
creating a new one with socket.socket().
2576
"""
1747
interface=None, use_ipv6=True):
2577
1748
self.interface = interface
2578
1749
if use_ipv6:
2579
1750
self.address_family = socket.AF_INET6
2580
if socketfd is not None:
2581
# Save the file descriptor
2582
self.socketfd = socketfd
2583
# Save the original socket.socket() function
2584
self.socket_socket = socket.socket
2585
2586
# To implement --socket, we monkey patch socket.socket.
2587
#
2588
# (When socketserver.TCPServer is a new-style class, we
2589
# could make self.socket into a property instead of monkey
2590
# patching socket.socket.)
2591
#
2592
# Create a one-time-only replacement for socket.socket()
2593
@functools.wraps(socket.socket)
2594
def socket_wrapper(*args, **kwargs):
2595
# Restore original function so subsequent calls are
2596
# not affected.
2597
socket.socket = self.socket_socket
2598
del self.socket_socket
2599
# This time only, return a new socket object from the
2600
# saved file descriptor.
2601
return socket.fromfd(self.socketfd, *args, **kwargs)
2602
# Replace socket.socket() function with wrapper
2603
socket.socket = socket_wrapper
2604
# The socketserver.TCPServer.__init__ will call
2605
# socket.socket(), which might be our replacement,
2606
# socket_wrapper(), if socketfd was set.
2607
1751
socketserver.TCPServer.__init__(self, server_address,
2608
1752
RequestHandlerClass)
2609
2610
1753
def server_bind(self):
2611
1754
"""This overrides the normal server_bind() function
2612
1755
to bind to an interface if one was specified, and also NOT to
2613
1756
bind to an address or port if they were not specified."""
2614
global SO_BINDTODEVICE
2615
1757
if self.interface is not None:
2616
1758
if SO_BINDTODEVICE is None:
2617
# Fall back to a hard-coded value which seems to be
2618
# common enough.
2619
logger.warning("SO_BINDTODEVICE not found, trying 25")
2620
SO_BINDTODEVICE = 25
2621
try:
2622
self.socket.setsockopt(
2623
socket.SOL_SOCKET, SO_BINDTODEVICE,
2624
(self.interface + "\0").encode("utf-8"))
2625
except socket.error as error:
2626
if error.errno == errno.EPERM:
2627
logger.error("No permission to bind to"
2628
" interface %s", self.interface)
2629
elif error.errno == errno.ENOPROTOOPT:
2630
logger.error("SO_BINDTODEVICE not available;"
2631
" cannot bind to interface %s",
2632
self.interface)
2633
elif error.errno == errno.ENODEV:
2634
logger.error("Interface %s does not exist,"
2635
" cannot bind", self.interface)
2636
else:
2637
raise
1759
logger.error("SO_BINDTODEVICE does not exist;"
1760
" cannot bind to interface %s",
1761
self.interface)
1762
else:
1763
try:
1764
self.socket.setsockopt(socket.SOL_SOCKET,
1765
SO_BINDTODEVICE,
1766
str(self.interface
1767
+ '\0'))
1768
except socket.error as error:
1769
if error[0] == errno.EPERM:
1770
logger.error("No permission to"
1771
" bind to interface %s",
1772
self.interface)
1773
elif error[0] == errno.ENOPROTOOPT:
1774
logger.error("SO_BINDTODEVICE not available;"
1775
" cannot bind to interface %s",
1776
self.interface)
1777
else:
1778
raise
2638
1779
# Only bind(2) the socket if we really need to.
2639
1780
if self.server_address[0] or self.server_address[1]:
2640
if self.server_address[1]:
2641
self.allow_reuse_address = True
2642
1781
if not self.server_address[0]:
2643
1782
if self.address_family == socket.AF_INET6:
2644
any_address = "::" # in6addr_any
1783
any_address = "::" # in6addr_any
2645
1784
else:
2646
any_address = "0.0.0.0" # INADDR_ANY
1785
any_address = socket.INADDR_ANY
2647
1786
self.server_address = (any_address,
2648
1787
self.server_address[1])
2649
1788
elif not self.server_address[1]:
2650
self.server_address = (self.server_address[0], 0)
1789
self.server_address = (self.server_address[0],
1790
0)
2651
1791
# if self.interface:
2652
1792
# self.server_address = (self.server_address[0],
2653
1793
# 0, # port
2659
1799
2660
1800
class MandosServer(IPv6_TCPServer):
2661
1801
"""Mandos server.
2662
1802
2663
1803
Attributes:
2664
1804
clients: set of Client objects
2665
1805
gnutls_priority GnuTLS priority string
2666
1806
use_dbus: Boolean; to emit D-Bus signals or not
2667
2668
Assumes a GLib.MainLoop event loop.
1807
1808
Assumes a gobject.MainLoop event loop.
2669
1809
"""
2670
2671
1810
def __init__(self, server_address, RequestHandlerClass,
2672
interface=None,
2673
use_ipv6=True,
2674
clients=None,
2675
gnutls_priority=None,
2676
use_dbus=True,
2677
socketfd=None):
1811
interface=None, use_ipv6=True, clients=None,
1812
gnutls_priority=None, use_dbus=True):
2678
1813
self.enabled = False
2679
1814
self.clients = clients
2680
1815
if self.clients is None:
2683
1818
self.gnutls_priority = gnutls_priority
2684
1819
IPv6_TCPServer.__init__(self, server_address,
2685
1820
RequestHandlerClass,
2686
interface=interface,
2687
use_ipv6=use_ipv6,
2688
socketfd=socketfd)
2689
1821
interface = interface,
1822
use_ipv6 = use_ipv6)
2690
1823
def server_activate(self):
2691
1824
if self.enabled:
2692
1825
return socketserver.TCPServer.server_activate(self)
2693
1826
2694
1827
def enable(self):
2695
1828
self.enabled = True
2696
1829
2697
1830
def add_pipe(self, parent_pipe, proc):
2698
1831
# Call "handle_ipc" for both data and EOF events
2699
GLib.io_add_watch(
2700
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2701
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2702
functools.partial(self.handle_ipc,
2703
parent_pipe=parent_pipe,
2704
proc=proc))
2705
2706
def handle_ipc(self, source, condition,
2707
parent_pipe=None,
2708
proc=None,
2709
client_object=None):
1832
gobject.io_add_watch(parent_pipe.fileno(),
1833
gobject.IO_IN | gobject.IO_HUP,
1834
functools.partial(self.handle_ipc,
1835
parent_pipe =
1836
parent_pipe,
1837
proc = proc))
1838
1839
def handle_ipc(self, source, condition, parent_pipe=None,
1840
proc = None, client_object=None):
1841
condition_names = {
1842
gobject.IO_IN: "IN", # There is data to read.
1843
gobject.IO_OUT: "OUT", # Data can be written (without
1844
# blocking).
1845
gobject.IO_PRI: "PRI", # There is urgent data to read.
1846
gobject.IO_ERR: "ERR", # Error condition.
1847
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1848
# broken, usually for pipes and
1849
# sockets).
1850
}
1851
conditions_string = ' | '.join(name
1852
for cond, name in
1853
condition_names.iteritems()
1854
if cond & condition)
2710
1855
# error, or the other end of multiprocessing.Pipe has closed
2711
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1856
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2712
1857
# Wait for other process to exit
2713
1858
proc.join()
2714
1859
return False
2715
1860
2716
1861
# Read a request from the child
2717
1862
request = parent_pipe.recv()
2718
1863
command = request[0]
2719
1864
2720
1865
if command == 'init':
2721
key_id = request[1].decode("ascii")
2722
fpr = request[2].decode("ascii")
2723
address = request[3]
2724
2725
for c in self.clients.values():
2726
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2727
continue
2728
if key_id and c.key_id == key_id:
2729
client = c
2730
break
2731
if fpr and c.fingerprint == fpr:
1866
fpr = request[1]
1867
address = request[2]
1868
1869
for c in self.clients.itervalues():
1870
if c.fingerprint == fpr:
2732
1871
client = c
2733
1872
break
2734
1873
else:
2735
logger.info("Client not found for key ID: %s, address"
2736
": %s", key_id or fpr, address)
1874
logger.info("Client not found for fingerprint: %s, ad"
1875
"dress: %s", fpr, address)
2737
1876
if self.use_dbus:
2738
1877
# Emit D-Bus signal
2739
mandos_dbus_service.ClientNotFound(key_id or fpr,
1878
mandos_dbus_service.ClientNotFound(fpr,
2740
1879
address[0])
2741
1880
parent_pipe.send(False)
2742
1881
return False
2743
2744
GLib.io_add_watch(
2745
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2746
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2747
functools.partial(self.handle_ipc,
2748
parent_pipe=parent_pipe,
2749
proc=proc,
2750
client_object=client))
1882
1883
gobject.io_add_watch(parent_pipe.fileno(),
1884
gobject.IO_IN | gobject.IO_HUP,
1885
functools.partial(self.handle_ipc,
1886
parent_pipe =
1887
parent_pipe,
1888
proc = proc,
1889
client_object =
1890
client))
2751
1891
parent_pipe.send(True)
2752
1892
# remove the old hook in favor of the new above hook on
2753
1893
# same fileno
2756
1896
funcname = request[1]
2757
1897
args = request[2]
2758
1898
kwargs = request[3]
2759
1899
2760
1900
parent_pipe.send(('data', getattr(client_object,
2761
1901
funcname)(*args,
2762
**kwargs)))
2763
1902
**kwargs)))
1903
2764
1904
if command == 'getattr':
2765
1905
attrname = request[1]
2766
if isinstance(client_object.__getattribute__(attrname),
2767
collections.abc.Callable):
2768
parent_pipe.send(('function', ))
1906
if callable(client_object.__getattribute__(attrname)):
1907
parent_pipe.send(('function',))
2769
1908
else:
2770
parent_pipe.send((
2771
'data', client_object.__getattribute__(attrname)))
2772
1909
parent_pipe.send(('data', client_object
1910
.__getattribute__(attrname)))
1911
2773
1912
if command == 'setattr':
2774
1913
attrname = request[1]
2775
1914
value = request[2]
2776
1915
setattr(client_object, attrname, value)
2777
1916
2778
1917
return True
2779
1918
2780
1919
2781
def rfc3339_duration_to_delta(duration):
2782
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2783
2784
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2785
True
2786
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2787
True
2788
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2789
True
2790
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2791
True
2792
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2793
True
2794
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2795
True
2796
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2797
True
2798
"""
2799
2800
# Parsing an RFC 3339 duration with regular expressions is not
2801
# possible - there would have to be multiple places for the same
2802
# values, like seconds. The current code, while more esoteric, is
2803
# cleaner without depending on a parsing library. If Python had a
2804
# built-in library for parsing we would use it, but we'd like to
2805
# avoid excessive use of external libraries.
2806
2807
# New type for defining tokens, syntax, and semantics all-in-one
2808
Token = collections.namedtuple("Token", (
2809
"regexp", # To match token; if "value" is not None, must have
2810
# a "group" containing digits
2811
"value", # datetime.timedelta or None
2812
"followers")) # Tokens valid after this token
2813
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2814
# the "duration" ABNF definition in RFC 3339, Appendix A.
2815
token_end = Token(re.compile(r"$"), None, frozenset())
2816
token_second = Token(re.compile(r"(\d+)S"),
2817
datetime.timedelta(seconds=1),
2818
frozenset((token_end, )))
2819
token_minute = Token(re.compile(r"(\d+)M"),
2820
datetime.timedelta(minutes=1),
2821
frozenset((token_second, token_end)))
2822
token_hour = Token(re.compile(r"(\d+)H"),
2823
datetime.timedelta(hours=1),
2824
frozenset((token_minute, token_end)))
2825
token_time = Token(re.compile(r"T"),
2826
None,
2827
frozenset((token_hour, token_minute,
2828
token_second)))
2829
token_day = Token(re.compile(r"(\d+)D"),
2830
datetime.timedelta(days=1),
2831
frozenset((token_time, token_end)))
2832
token_month = Token(re.compile(r"(\d+)M"),
2833
datetime.timedelta(weeks=4),
2834
frozenset((token_day, token_end)))
2835
token_year = Token(re.compile(r"(\d+)Y"),
2836
datetime.timedelta(weeks=52),
2837
frozenset((token_month, token_end)))
2838
token_week = Token(re.compile(r"(\d+)W"),
2839
datetime.timedelta(weeks=1),
2840
frozenset((token_end, )))
2841
token_duration = Token(re.compile(r"P"), None,
2842
frozenset((token_year, token_month,
2843
token_day, token_time,
2844
token_week)))
2845
# Define starting values:
2846
# Value so far
2847
value = datetime.timedelta()
2848
found_token = None
2849
# Following valid tokens
2850
followers = frozenset((token_duration, ))
2851
# String left to parse
2852
s = duration
2853
# Loop until end token is found
2854
while found_token is not token_end:
2855
# Search for any currently valid tokens
2856
for token in followers:
2857
match = token.regexp.match(s)
2858
if match is not None:
2859
# Token found
2860
if token.value is not None:
2861
# Value found, parse digits
2862
factor = int(match.group(1), 10)
2863
# Add to value so far
2864
value += factor * token.value
2865
# Strip token from string
2866
s = token.regexp.sub("", s, 1)
2867
# Go to found token
2868
found_token = token
2869
# Set valid next tokens
2870
followers = found_token.followers
2871
break
2872
else:
2873
# No currently valid tokens were found
2874
raise ValueError("Invalid RFC 3339 duration: {!r}"
2875
.format(duration))
2876
# End token found
2877
return value
2878
2879
2880
1920
def string_to_delta(interval):
2881
1921
"""Parse a string and return a datetime.timedelta
2882
2883
>>> string_to_delta('7d') == datetime.timedelta(7)
2884
True
2885
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2886
True
2887
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2888
True
2889
>>> string_to_delta('24h') == datetime.timedelta(1)
2890
True
2891
>>> string_to_delta('1w') == datetime.timedelta(7)
2892
True
2893
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2894
True
1922
1923
>>> string_to_delta('7d')
1924
datetime.timedelta(7)
1925
>>> string_to_delta('60s')
1926
datetime.timedelta(0, 60)
1927
>>> string_to_delta('60m')
1928
datetime.timedelta(0, 3600)
1929
>>> string_to_delta('24h')
1930
datetime.timedelta(1)
1931
>>> string_to_delta('1w')
1932
datetime.timedelta(7)
1933
>>> string_to_delta('5m 30s')
1934
datetime.timedelta(0, 330)
2895
1935
"""
2896
2897
try:
2898
return rfc3339_duration_to_delta(interval)
2899
except ValueError:
2900
pass
2901
2902
1936
timevalue = datetime.timedelta(0)
2903
1937
for s in interval.split():
2904
1938
try:
2905
suffix = s[-1]
1939
suffix = unicode(s[-1])
2906
1940
value = int(s[:-1])
2907
1941
if suffix == "d":
2908
1942
delta = datetime.timedelta(value)
2915
1949
elif suffix == "w":
2916
1950
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2917
1951
else:
2918
raise ValueError("Unknown suffix {!r}".format(suffix))
2919
except IndexError as e:
1952
raise ValueError("Unknown suffix %r" % suffix)
1953
except (ValueError, IndexError) as e:
2920
1954
raise ValueError(*(e.args))
2921
1955
timevalue += delta
2922
1956
return timevalue
2923
1957
2924
1958
2925
def daemon(nochdir=False, noclose=False):
1959
def daemon(nochdir = False, noclose = False):
2926
1960
"""See daemon(3). Standard BSD Unix function.
2927
1961
2928
1962
This should really exist as os.daemon, but it doesn't (yet)."""
2929
1963
if os.fork():
2930
1964
sys.exit()
2935
1969
sys.exit()
2936
1970
if not noclose:
2937
1971
# Close all standard open file descriptors
2938
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1972
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2939
1973
if not stat.S_ISCHR(os.fstat(null).st_mode):
2940
1974
raise OSError(errno.ENODEV,
2941
"{} not a character device"
2942
.format(os.devnull))
1975
"%s not a character device"
1976
% os.path.devnull)
2943
1977
os.dup2(null, sys.stdin.fileno())
2944
1978
os.dup2(null, sys.stdout.fileno())
2945
1979
os.dup2(null, sys.stderr.fileno())
2948
1982
2949
1983
2950
1984
def main():
2951
1985
2952
1986
##################################################################
2953
1987
# Parsing of options, both command line and config file
2954
1988
2955
1989
parser = argparse.ArgumentParser()
2956
1990
parser.add_argument("-v", "--version", action="version",
2957
version="%(prog)s {}".format(version),
1991
version = "%%(prog)s %s" % version,
2958
1992
help="show version number and exit")
2959
1993
parser.add_argument("-i", "--interface", metavar="IF",
2960
1994
help="Bind to interface IF")
2966
2000
help="Run self-test")
2967
2001
parser.add_argument("--debug", action="store_true",
2968
2002
help="Debug mode; run in foreground and log"
2969
" to terminal", default=None)
2003
" to terminal")
2970
2004
parser.add_argument("--debuglevel", metavar="LEVEL",
2971
2005
help="Debug level for stdout output")
2972
2006
parser.add_argument("--priority", help="GnuTLS"
2979
2013
" files")
2980
2014
parser.add_argument("--no-dbus", action="store_false",
2981
2015
dest="use_dbus", help="Do not provide D-Bus"
2982
" system bus interface", default=None)
2016
" system bus interface")
2983
2017
parser.add_argument("--no-ipv6", action="store_false",
2984
dest="use_ipv6", help="Do not use IPv6",
2985
default=None)
2018
dest="use_ipv6", help="Do not use IPv6")
2986
2019
parser.add_argument("--no-restore", action="store_false",
2987
2020
dest="restore", help="Do not restore stored"
2988
" state", default=None)
2989
parser.add_argument("--socket", type=int,
2990
help="Specify a file descriptor to a network"
2991
" socket to use instead of creating one")
2021
" state")
2992
2022
parser.add_argument("--statedir", metavar="DIR",
2993
2023
help="Directory to save/restore state in")
2994
parser.add_argument("--foreground", action="store_true",
2995
help="Run in foreground", default=None)
2996
parser.add_argument("--no-zeroconf", action="store_false",
2997
dest="zeroconf", help="Do not use Zeroconf",
2998
default=None)
2999
2024
3000
2025
options = parser.parse_args()
3001
2026
2027
if options.check:
2028
import doctest
2029
doctest.testmod()
2030
sys.exit()
2031
3002
2032
# Default values for config file for server-global settings
3003
if gnutls.has_rawpk:
3004
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3005
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3006
else:
3007
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3008
":+SIGN-DSA-SHA256")
3009
server_defaults = {"interface": "",
3010
"address": "",
3011
"port": "",
3012
"debug": "False",
3013
"priority": priority,
3014
"servicename": "Mandos",
3015
"use_dbus": "True",
3016
"use_ipv6": "True",
3017
"debuglevel": "",
3018
"restore": "True",
3019
"socket": "",
3020
"statedir": "/var/lib/mandos",
3021
"foreground": "False",
3022
"zeroconf": "True",
3023
}
3024
del priority
3025
2033
server_defaults = { "interface": "",
2034
"address": "",
2035
"port": "",
2036
"debug": "False",
2037
"priority":
2038
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2039
"servicename": "Mandos",
2040
"use_dbus": "True",
2041
"use_ipv6": "True",
2042
"debuglevel": "",
2043
"restore": "True",
2044
"statedir": "/var/lib/mandos"
2045
}
2046
3026
2047
# Parse config file for server-global settings
3027
server_config = configparser.ConfigParser(server_defaults)
2048
server_config = configparser.SafeConfigParser(server_defaults)
3028
2049
del server_defaults
3029
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3030
# Convert the ConfigParser object to a dict
2050
server_config.read(os.path.join(options.configdir,
2051
"mandos.conf"))
2052
# Convert the SafeConfigParser object to a dict
3031
2053
server_settings = server_config.defaults()
3032
2054
# Use the appropriate methods on the non-string config options
3033
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3034
"foreground", "zeroconf"):
2055
for option in ("debug", "use_dbus", "use_ipv6"):
3035
2056
server_settings[option] = server_config.getboolean("DEFAULT",
3036
2057
option)
3037
2058
if server_settings["port"]:
3038
2059
server_settings["port"] = server_config.getint("DEFAULT",
3039
2060
"port")
3040
if server_settings["socket"]:
3041
server_settings["socket"] = server_config.getint("DEFAULT",
3042
"socket")
3043
# Later, stdin will, and stdout and stderr might, be dup'ed
3044
# over with an opened os.devnull. But we don't want this to
3045
# happen with a supplied network socket.
3046
if 0 <= server_settings["socket"] <= 2:
3047
server_settings["socket"] = os.dup(server_settings
3048
["socket"])
3049
2061
del server_config
3050
2062
3051
2063
# Override the settings from the config file with command line
3052
2064
# options, if set.
3053
2065
for option in ("interface", "address", "port", "debug",
3054
"priority", "servicename", "configdir", "use_dbus",
3055
"use_ipv6", "debuglevel", "restore", "statedir",
3056
"socket", "foreground", "zeroconf"):
2066
"priority", "servicename", "configdir",
2067
"use_dbus", "use_ipv6", "debuglevel", "restore",
2068
"statedir"):
3057
2069
value = getattr(options, option)
3058
2070
if value is not None:
3059
2071
server_settings[option] = value
3060
2072
del options
3061
2073
# Force all strings to be unicode
3062
2074
for option in server_settings.keys():
3063
if isinstance(server_settings[option], bytes):
3064
server_settings[option] = (server_settings[option]
3065
.decode("utf-8"))
3066
# Force all boolean options to be boolean
3067
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3068
"foreground", "zeroconf"):
3069
server_settings[option] = bool(server_settings[option])
3070
# Debug implies foreground
3071
if server_settings["debug"]:
3072
server_settings["foreground"] = True
2075
if type(server_settings[option]) is str:
2076
server_settings[option] = unicode(server_settings[option])
3073
2077
# Now we have our good server settings in "server_settings"
3074
2078
3075
2079
##################################################################
3076
3077
if (not server_settings["zeroconf"]
3078
and not (server_settings["port"]
3079
or server_settings["socket"] != "")):
3080
parser.error("Needs port or socket to work without Zeroconf")
3081
2080
3082
2081
# For convenience
3083
2082
debug = server_settings["debug"]
3084
2083
debuglevel = server_settings["debuglevel"]
3086
2085
use_ipv6 = server_settings["use_ipv6"]
3087
2086
stored_state_path = os.path.join(server_settings["statedir"],
3088
2087
stored_state_file)
3089
foreground = server_settings["foreground"]
3090
zeroconf = server_settings["zeroconf"]
3091
2088
3092
2089
if debug:
3093
2090
initlogger(debug, logging.DEBUG)
3094
2091
else:
3097
2094
else:
3098
2095
level = getattr(logging, debuglevel.upper())
3099
2096
initlogger(debug, level)
3100
2097
3101
2098
if server_settings["servicename"] != "Mandos":
3102
syslogger.setFormatter(
3103
logging.Formatter('Mandos ({}) [%(process)d]:'
3104
' %(levelname)s: %(message)s'.format(
3105
server_settings["servicename"])))
3106
2099
syslogger.setFormatter(logging.Formatter
2100
('Mandos (%s) [%%(process)d]:'
2101
' %%(levelname)s: %%(message)s'
2102
% server_settings["servicename"]))
2103
3107
2104
# Parse config file with clients
3108
client_config = configparser.ConfigParser(Client.client_defaults)
2105
client_config = configparser.SafeConfigParser(Client
2106
.client_defaults)
3109
2107
client_config.read(os.path.join(server_settings["configdir"],
3110
2108
"clients.conf"))
3111
2109
3112
2110
global mandos_dbus_service
3113
2111
mandos_dbus_service = None
3114
3115
socketfd = None
3116
if server_settings["socket"] != "":
3117
socketfd = server_settings["socket"]
3118
tcp_server = MandosServer(
3119
(server_settings["address"], server_settings["port"]),
3120
ClientHandler,
3121
interface=(server_settings["interface"] or None),
3122
use_ipv6=use_ipv6,
3123
gnutls_priority=server_settings["priority"],
3124
use_dbus=use_dbus,
3125
socketfd=socketfd)
3126
if not foreground:
3127
pidfilename = "/run/mandos.pid"
3128
if not os.path.isdir("/run/."):
3129
pidfilename = "/var/run/mandos.pid"
3130
pidfile = None
3131
try:
3132
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3133
except IOError as e:
3134
logger.error("Could not open file %r", pidfilename,
3135
exc_info=e)
3136
3137
for name, group in (("_mandos", "_mandos"),
3138
("mandos", "mandos"),
3139
("nobody", "nogroup")):
3140
try:
3141
uid = pwd.getpwnam(name).pw_uid
3142
gid = pwd.getpwnam(group).pw_gid
3143
break
2112
2113
tcp_server = MandosServer((server_settings["address"],
2114
server_settings["port"]),
2115
ClientHandler,
2116
interface=(server_settings["interface"]
2117
or None),
2118
use_ipv6=use_ipv6,
2119
gnutls_priority=
2120
server_settings["priority"],
2121
use_dbus=use_dbus)
2122
if not debug:
2123
pidfilename = "/var/run/mandos.pid"
2124
try:
2125
pidfile = open(pidfilename, "w")
2126
except IOError:
2127
logger.error("Could not open file %r", pidfilename)
2128
2129
try:
2130
uid = pwd.getpwnam("_mandos").pw_uid
2131
gid = pwd.getpwnam("_mandos").pw_gid
2132
except KeyError:
2133
try:
2134
uid = pwd.getpwnam("mandos").pw_uid
2135
gid = pwd.getpwnam("mandos").pw_gid
3144
2136
except KeyError:
3145
continue
3146
else:
3147
uid = 65534
3148
gid = 65534
2137
try:
2138
uid = pwd.getpwnam("nobody").pw_uid
2139
gid = pwd.getpwnam("nobody").pw_gid
2140
except KeyError:
2141
uid = 65534
2142
gid = 65534
3149
2143
try:
3150
2144
os.setgid(gid)
3151
2145
os.setuid(uid)
3152
if debug:
3153
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3154
gid))
3155
2146
except OSError as error:
3156
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3157
.format(uid, gid, os.strerror(error.errno)))
3158
if error.errno != errno.EPERM:
3159
raise
3160
2147
if error[0] != errno.EPERM:
2148
raise error
2149
3161
2150
if debug:
3162
2151
# Enable all possible GnuTLS debugging
3163
2152
3164
2153
# "Use a log level over 10 to enable all debugging options."
3165
2154
# - GnuTLS manual
3166
gnutls.global_set_log_level(11)
3167
3168
@gnutls.log_func
2155
gnutls.library.functions.gnutls_global_set_log_level(11)
2156
2157
@gnutls.library.types.gnutls_log_func
3169
2158
def debug_gnutls(level, string):
3170
2159
logger.debug("GnuTLS: %s", string[:-1])
3171
3172
gnutls.global_set_log_function(debug_gnutls)
3173
2160
2161
(gnutls.library.functions
2162
.gnutls_global_set_log_function(debug_gnutls))
2163
3174
2164
# Redirect stdin so all checkers get /dev/null
3175
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2165
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3176
2166
os.dup2(null, sys.stdin.fileno())
3177
2167
if null > 2:
3178
2168
os.close(null)
3179
2169
3180
2170
# Need to fork before connecting to D-Bus
3181
if not foreground:
2171
if not debug:
3182
2172
# Close all input and output, do double fork, etc.
3183
2173
daemon()
3184
3185
if gi.version_info < (3, 10, 2):
3186
# multiprocessing will use threads, so before we use GLib we
3187
# need to inform GLib that threads will be used.
3188
GLib.threads_init()
3189
2174
2175
gobject.threads_init()
2176
3190
2177
global main_loop
3191
2178
# From the Avahi example code
3192
DBusGMainLoop(set_as_default=True)
3193
main_loop = GLib.MainLoop()
2179
DBusGMainLoop(set_as_default=True )
2180
main_loop = gobject.MainLoop()
3194
2181
bus = dbus.SystemBus()
3195
2182
# End of Avahi example code
3196
2183
if use_dbus:
3197
2184
try:
3198
2185
bus_name = dbus.service.BusName("se.recompile.Mandos",
3199
bus,
3200
do_not_queue=True)
3201
old_bus_name = dbus.service.BusName(
3202
"se.bsnet.fukt.Mandos", bus,
3203
do_not_queue=True)
3204
except dbus.exceptions.DBusException as e:
3205
logger.error("Disabling D-Bus:", exc_info=e)
2186
bus, do_not_queue=True)
2187
old_bus_name = (dbus.service.BusName
2188
("se.bsnet.fukt.Mandos", bus,
2189
do_not_queue=True))
2190
except dbus.exceptions.NameExistsException as e:
2191
logger.error(unicode(e) + ", disabling D-Bus")
3206
2192
use_dbus = False
3207
2193
server_settings["use_dbus"] = False
3208
2194
tcp_server.use_dbus = False
3209
if zeroconf:
3210
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3211
service = AvahiServiceToSyslog(
3212
name=server_settings["servicename"],
3213
servicetype="_mandos._tcp",
3214
protocol=protocol,
3215
bus=bus)
3216
if server_settings["interface"]:
3217
service.interface = if_nametoindex(
3218
server_settings["interface"].encode("utf-8"))
3219
2195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2196
service = AvahiServiceToSyslog(name =
2197
server_settings["servicename"],
2198
servicetype = "_mandos._tcp",
2199
protocol = protocol, bus = bus)
2200
if server_settings["interface"]:
2201
service.interface = (if_nametoindex
2202
(str(server_settings["interface"])))
2203
3220
2204
global multiprocessing_manager
3221
2205
multiprocessing_manager = multiprocessing.Manager()
3222
2206
3223
2207
client_class = Client
3224
2208
if use_dbus:
3225
client_class = functools.partial(ClientDBus, bus=bus)
3226
2209
client_class = functools.partial(ClientDBusTransitional,
2210
bus = bus)
2211
3227
2212
client_settings = Client.config_parser(client_config)
3228
2213
old_client_settings = {}
3229
2214
clients_data = {}
3230
3231
# This is used to redirect stdout and stderr for checker processes
3232
global wnull
3233
wnull = open(os.devnull, "w") # A writable /dev/null
3234
# Only used if server is running in foreground but not in debug
3235
# mode
3236
if debug or not foreground:
3237
wnull.close()
3238
2215
3239
2216
# Get client data and settings from last running state.
3240
2217
if server_settings["restore"]:
3241
2218
try:
3242
2219
with open(stored_state_path, "rb") as stored_state:
3243
if sys.version_info.major == 2:
3244
clients_data, old_client_settings = pickle.load(
3245
stored_state)
3246
else:
3247
bytes_clients_data, bytes_old_client_settings = (
3248
pickle.load(stored_state, encoding="bytes"))
3249
# Fix bytes to strings
3250
# clients_data
3251
# .keys()
3252
clients_data = {(key.decode("utf-8")
3253
if isinstance(key, bytes)
3254
else key): value
3255
for key, value in
3256
bytes_clients_data.items()}
3257
del bytes_clients_data
3258
for key in clients_data:
3259
value = {(k.decode("utf-8")
3260
if isinstance(k, bytes) else k): v
3261
for k, v in
3262
clients_data[key].items()}
3263
clients_data[key] = value
3264
# .client_structure
3265
value["client_structure"] = [
3266
(s.decode("utf-8")
3267
if isinstance(s, bytes)
3268
else s) for s in
3269
value["client_structure"]]
3270
# .name, .host, and .checker_command
3271
for k in ("name", "host", "checker_command"):
3272
if isinstance(value[k], bytes):
3273
value[k] = value[k].decode("utf-8")
3274
if "key_id" not in value:
3275
value["key_id"] = ""
3276
elif "fingerprint" not in value:
3277
value["fingerprint"] = ""
3278
# old_client_settings
3279
# .keys()
3280
old_client_settings = {
3281
(key.decode("utf-8")
3282
if isinstance(key, bytes)
3283
else key): value
3284
for key, value in
3285
bytes_old_client_settings.items()}
3286
del bytes_old_client_settings
3287
# .host and .checker_command
3288
for value in old_client_settings.values():
3289
for attribute in ("host", "checker_command"):
3290
if isinstance(value[attribute], bytes):
3291
value[attribute] = (value[attribute]
3292
.decode("utf-8"))
2220
clients_data, old_client_settings = (pickle.load
2221
(stored_state))
3293
2222
os.remove(stored_state_path)
3294
2223
except IOError as e:
3295
if e.errno == errno.ENOENT:
3296
logger.warning("Could not load persistent state:"
3297
" {}".format(os.strerror(e.errno)))
3298
else:
3299
logger.critical("Could not load persistent state:",
3300
exc_info=e)
2224
logger.warning("Could not load persistent state: {0}"
2225
.format(e))
2226
if e.errno != errno.ENOENT:
3301
2227
raise
3302
2228
except EOFError as e:
3303
2229
logger.warning("Could not load persistent state: "
3304
"EOFError:",
3305
exc_info=e)
3306
2230
"EOFError: {0}".format(e))
2231
3307
2232
with PGPEngine() as pgp:
3308
for client_name, client in clients_data.items():
3309
# Skip removed clients
3310
if client_name not in client_settings:
3311
continue
3312
2233
for client_name, client in clients_data.iteritems():
3313
2234
# Decide which value to use after restoring saved state.
3314
2235
# We have three different values: Old config file,
3315
2236
# new config file, and saved state.
3320
2241
# For each value in new config, check if it
3321
2242
# differs from the old config value (Except for
3322
2243
# the "secret" attribute)
3323
if (name != "secret"
3324
and (value !=
3325
old_client_settings[client_name][name])):
2244
if (name != "secret" and
2245
value != old_client_settings[client_name]
2246
[name]):
3326
2247
client[name] = value
3327
2248
except KeyError:
3328
2249
pass
3329
2250
3330
2251
# Clients who has passed its expire date can still be
3331
# enabled if its last checker was successful. A Client
3332
# whose checker succeeded before we stored its state is
3333
# assumed to have successfully run all checkers during
3334
# downtime.
2252
# enabled if its last checker was successful. Clients
2253
# whose checker failed before we stored its state is
2254
# assumed to have failed all checkers during downtime.
3335
2255
if client["enabled"]:
3336
2256
if datetime.datetime.utcnow() >= client["expires"]:
3337
2257
if not client["last_checked_ok"]:
3338
2258
logger.warning(
3339
"disabling client {} - Client never "
3340
"performed a successful checker".format(
3341
client_name))
2259
"disabling client {0} - Client never "
2260
"performed a successfull checker"
2261
.format(client["name"]))
3342
2262
client["enabled"] = False
3343
2263
elif client["last_checker_status"] != 0:
3344
2264
logger.warning(
3345
"disabling client {} - Client last"
3346
" checker failed with error code"
3347
" {}".format(
3348
client_name,
3349
client["last_checker_status"]))
2265
"disabling client {0} - Client "
2266
"last checker failed with error code {1}"
2267
.format(client["name"],
2268
client["last_checker_status"]))
3350
2269
client["enabled"] = False
3351
2270
else:
3352
client["expires"] = (
3353
datetime.datetime.utcnow()
3354
+ client["timeout"])
2271
client["expires"] = (datetime.datetime
2272
.utcnow()
2273
+ client["timeout"])
3355
2274
logger.debug("Last checker succeeded,"
3356
" keeping {} enabled".format(
3357
client_name))
2275
" keeping {0} enabled"
2276
.format(client["name"]))
3358
2277
try:
3359
client["secret"] = pgp.decrypt(
3360
client["encrypted_secret"],
3361
client_settings[client_name]["secret"])
2278
client["secret"] = (
2279
pgp.decrypt(client["encrypted_secret"],
2280
client_settings[client_name]
2281
["secret"]))
3362
2282
except PGPError:
3363
2283
# If decryption fails, we use secret from new settings
3364
logger.debug("Failed to decrypt {} old secret".format(
3365
client_name))
3366
client["secret"] = (client_settings[client_name]
3367
["secret"])
2284
logger.debug("Failed to decrypt {0} old secret"
2285
.format(client_name))
2286
client["secret"] = (
2287
client_settings[client_name]["secret"])
3368
2288
2289
3369
2290
# Add/remove clients based on new changes made to config
3370
2291
for client_name in (set(old_client_settings)
3371
2292
- set(client_settings)):
3374
2295
- set(old_client_settings)):
3375
2296
clients_data[client_name] = client_settings[client_name]
3376
2297
3377
# Create all client objects
3378
for client_name, client in clients_data.items():
2298
# Create clients all clients
2299
for client_name, client in clients_data.iteritems():
3379
2300
tcp_server.clients[client_name] = client_class(
3380
name=client_name,
3381
settings=client,
3382
server_settings=server_settings)
3383
2301
name = client_name, settings = client)
2302
3384
2303
if not tcp_server.clients:
3385
2304
logger.warning("No clients defined")
3386
3387
if not foreground:
3388
if pidfile is not None:
3389
pid = os.getpid()
3390
try:
3391
with pidfile:
3392
print(pid, file=pidfile)
3393
except IOError:
3394
logger.error("Could not write to file %r with PID %d",
3395
pidfilename, pid)
3396
del pidfile
2305
2306
if not debug:
2307
try:
2308
with pidfile:
2309
pid = os.getpid()
2310
pidfile.write(str(pid) + "\n".encode("utf-8"))
2311
del pidfile
2312
except IOError:
2313
logger.error("Could not write to file %r with PID %d",
2314
pidfilename, pid)
2315
except NameError:
2316
# "pidfile" was never created
2317
pass
3397
2318
del pidfilename
3398
3399
for termsig in (signal.SIGHUP, signal.SIGTERM):
3400
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3401
lambda: main_loop.quit() and False)
3402
2319
signal.signal(signal.SIGINT, signal.SIG_IGN)
2320
2321
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2322
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2323
3403
2324
if use_dbus:
3404
3405
@alternate_dbus_interfaces(
3406
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3407
class MandosDBusService(DBusObjectWithObjectManager):
2325
class MandosDBusService(dbus.service.Object):
3408
2326
"""A D-Bus proxy object"""
3409
3410
2327
def __init__(self):
3411
2328
dbus.service.Object.__init__(self, bus, "/")
3412
3413
2329
_interface = "se.recompile.Mandos"
3414
2330
3415
2331
@dbus.service.signal(_interface, signature="o")
3416
2332
def ClientAdded(self, objpath):
3417
2333
"D-Bus signal"
3418
2334
pass
3419
2335
3420
2336
@dbus.service.signal(_interface, signature="ss")
3421
def ClientNotFound(self, key_id, address):
2337
def ClientNotFound(self, fingerprint, address):
3422
2338
"D-Bus signal"
3423
2339
pass
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2340
3427
2341
@dbus.service.signal(_interface, signature="os")
3428
2342
def ClientRemoved(self, objpath, name):
3429
2343
"D-Bus signal"
3430
2344
pass
3431
3432
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3433
"true"})
2345
3434
2346
@dbus.service.method(_interface, out_signature="ao")
3435
2347
def GetAllClients(self):
3436
2348
"D-Bus method"
3437
return dbus.Array(c.dbus_object_path for c in
3438
tcp_server.clients.values())
3439
3440
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3441
"true"})
2349
return dbus.Array(c.dbus_object_path
2350
for c in
2351
tcp_server.clients.itervalues())
2352
3442
2353
@dbus.service.method(_interface,
3443
2354
out_signature="a{oa{sv}}")
3444
2355
def GetAllClientsWithProperties(self):
3445
2356
"D-Bus method"
3446
2357
return dbus.Dictionary(
3447
{c.dbus_object_path: c.GetAll(
3448
"se.recompile.Mandos.Client")
3449
for c in tcp_server.clients.values()},
2358
((c.dbus_object_path, c.GetAll(""))
2359
for c in tcp_server.clients.itervalues()),
3450
2360
signature="oa{sv}")
3451
2361
3452
2362
@dbus.service.method(_interface, in_signature="o")
3453
2363
def RemoveClient(self, object_path):
3454
2364
"D-Bus method"
3455
for c in tcp_server.clients.values():
2365
for c in tcp_server.clients.itervalues():
3456
2366
if c.dbus_object_path == object_path:
3457
2367
del tcp_server.clients[c.name]
3458
2368
c.remove_from_connection()
3459
# Don't signal the disabling
2369
# Don't signal anything except ClientRemoved
3460
2370
c.disable(quiet=True)
3461
# Emit D-Bus signal for removal
3462
self.client_removed_signal(c)
2371
# Emit D-Bus signal
2372
self.ClientRemoved(object_path, c.name)
3463
2373
return
3464
2374
raise KeyError(object_path)
3465
2375
3466
2376
del _interface
3467
3468
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3469
out_signature="a{oa{sa{sv}}}")
3470
def GetManagedObjects(self):
3471
"""D-Bus method"""
3472
return dbus.Dictionary(
3473
{client.dbus_object_path:
3474
dbus.Dictionary(
3475
{interface: client.GetAll(interface)
3476
for interface in
3477
client._get_all_interface_names()})
3478
for client in tcp_server.clients.values()})
3479
3480
def client_added_signal(self, client):
3481
"""Send the new standard signal and the old signal"""
3482
if use_dbus:
3483
# New standard signal
3484
self.InterfacesAdded(
3485
client.dbus_object_path,
3486
dbus.Dictionary(
3487
{interface: client.GetAll(interface)
3488
for interface in
3489
client._get_all_interface_names()}))
3490
# Old signal
3491
self.ClientAdded(client.dbus_object_path)
3492
3493
def client_removed_signal(self, client):
3494
"""Send the new standard signal and the old signal"""
3495
if use_dbus:
3496
# New standard signal
3497
self.InterfacesRemoved(
3498
client.dbus_object_path,
3499
client._get_all_interface_names())
3500
# Old signal
3501
self.ClientRemoved(client.dbus_object_path,
3502
client.name)
3503
3504
mandos_dbus_service = MandosDBusService()
3505
3506
# Save modules to variables to exempt the modules from being
3507
# unloaded before the function registered with atexit() is run.
3508
mp = multiprocessing
3509
wn = wnull
3510
2377
2378
class MandosDBusServiceTransitional(MandosDBusService):
2379
__metaclass__ = AlternateDBusNamesMetaclass
2380
mandos_dbus_service = MandosDBusServiceTransitional()
2381
3511
2382
def cleanup():
3512
2383
"Cleanup function; run on exit"
3513
if zeroconf:
3514
service.cleanup()
3515
3516
mp.active_children()
3517
wn.close()
2384
service.cleanup()
2385
2386
multiprocessing.active_children()
3518
2387
if not (tcp_server.clients or client_settings):
3519
2388
return
3520
2389
3521
2390
# Store client before exiting. Secrets are encrypted with key
3522
2391
# based on what config file has. If config file is
3523
2392
# removed/edited, old secret will thus be unrecovable.
3524
2393
clients = {}
3525
2394
with PGPEngine() as pgp:
3526
for client in tcp_server.clients.values():
2395
for client in tcp_server.clients.itervalues():
3527
2396
key = client_settings[client.name]["secret"]
3528
2397
client.encrypted_secret = pgp.encrypt(client.secret,
3529
2398
key)
3530
2399
client_dict = {}
3531
2400
3532
2401
# A list of attributes that can not be pickled
3533
2402
# + secret.
3534
exclude = {"bus", "changedstate", "secret",
3535
"checker", "server_settings"}
3536
for name, typ in inspect.getmembers(dbus.service
3537
.Object):
2403
exclude = set(("bus", "changedstate", "secret",
2404
"checker"))
2405
for name, typ in (inspect.getmembers
2406
(dbus.service.Object)):
3538
2407
exclude.add(name)
3539
2408
3540
2409
client_dict["encrypted_secret"] = (client
3541
2410
.encrypted_secret)
3542
2411
for attr in client.client_structure:
3543
2412
if attr not in exclude:
3544
2413
client_dict[attr] = getattr(client, attr)
3545
2414
3546
2415
clients[client.name] = client_dict
3547
2416
del client_settings[client.name]["secret"]
3548
2417
3549
2418
try:
3550
with tempfile.NamedTemporaryFile(
3551
mode='wb',
3552
suffix=".pickle",
3553
prefix='clients-',
3554
dir=os.path.dirname(stored_state_path),
3555
delete=False) as stored_state:
3556
pickle.dump((clients, client_settings), stored_state,
3557
protocol=2)
3558
tempname = stored_state.name
2419
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2420
prefix="clients-",
2421
dir=os.path.dirname
2422
(stored_state_path))
2423
with os.fdopen(tempfd, "wb") as stored_state:
2424
pickle.dump((clients, client_settings), stored_state)
3559
2425
os.rename(tempname, stored_state_path)
3560
2426
except (IOError, OSError) as e:
2427
logger.warning("Could not save persistent state: {0}"
2428
.format(e))
3561
2429
if not debug:
3562
2430
try:
3563
2431
os.remove(tempname)
3564
2432
except NameError:
3565
2433
pass
3566
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3567
logger.warning("Could not save persistent state: {}"
3568
.format(os.strerror(e.errno)))
3569
else:
3570
logger.warning("Could not save persistent state:",
3571
exc_info=e)
3572
raise
3573
2434
if e.errno not in set((errno.ENOENT, errno.EACCES,
2435
errno.EEXIST)):
2436
raise e
2437
3574
2438
# Delete all clients, and settings from config
3575
2439
while tcp_server.clients:
3576
2440
name, client = tcp_server.clients.popitem()
3577
2441
if use_dbus:
3578
2442
client.remove_from_connection()
3579
# Don't signal the disabling
2443
# Don't signal anything except ClientRemoved
3580
2444
client.disable(quiet=True)
3581
# Emit D-Bus signal for removal
3582
2445
if use_dbus:
3583
mandos_dbus_service.client_removed_signal(client)
2446
# Emit D-Bus signal
2447
mandos_dbus_service.ClientRemoved(client
2448
.dbus_object_path,
2449
client.name)
3584
2450
client_settings.clear()
3585
2451
3586
2452
atexit.register(cleanup)
3587
3588
for client in tcp_server.clients.values():
2453
2454
for client in tcp_server.clients.itervalues():
3589
2455
if use_dbus:
3590
# Emit D-Bus signal for adding
3591
mandos_dbus_service.client_added_signal(client)
2456
# Emit D-Bus signal
2457
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3592
2458
# Need to initiate checking of clients
3593
2459
if client.enabled:
3594
2460
client.init_checker()
3595
2461
3596
2462
tcp_server.enable()
3597
2463
tcp_server.server_activate()
3598
2464
3599
2465
# Find out what port we got
3600
if zeroconf:
3601
service.port = tcp_server.socket.getsockname()[1]
2466
service.port = tcp_server.socket.getsockname()[1]
3602
2467
if use_ipv6:
3603
2468
logger.info("Now listening on address %r, port %d,"
3604
" flowinfo %d, scope_id %d",
3605
*tcp_server.socket.getsockname())
2469
" flowinfo %d, scope_id %d"
2470
% tcp_server.socket.getsockname())
3606
2471
else: # IPv4
3607
logger.info("Now listening on address %r, port %d",
3608
*tcp_server.socket.getsockname())
3609
3610
# service.interface = tcp_server.socket.getsockname()[3]
3611
2472
logger.info("Now listening on address %r, port %d"
2473
% tcp_server.socket.getsockname())
2474
2475
#service.interface = tcp_server.socket.getsockname()[3]
2476
3612
2477
try:
3613
if zeroconf:
3614
# From the Avahi example code
3615
try:
3616
service.activate()
3617
except dbus.exceptions.DBusException as error:
3618
logger.critical("D-Bus Exception", exc_info=error)
3619
cleanup()
3620
sys.exit(1)
3621
# End of Avahi example code
3622
3623
GLib.io_add_watch(
3624
GLib.IOChannel.unix_new(tcp_server.fileno()),
3625
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3626
lambda *args, **kwargs: (tcp_server.handle_request
3627
(*args[2:], **kwargs) or True))
3628
2478
# From the Avahi example code
2479
try:
2480
service.activate()
2481
except dbus.exceptions.DBusException as error:
2482
logger.critical("DBusException: %s", error)
2483
cleanup()
2484
sys.exit(1)
2485
# End of Avahi example code
2486
2487
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2488
lambda *args, **kwargs:
2489
(tcp_server.handle_request
2490
(*args[2:], **kwargs) or True))
2491
3629
2492
logger.debug("Starting main loop")
3630
2493
main_loop.run()
3631
2494
except AvahiError as error:
3632
logger.critical("Avahi Error", exc_info=error)
2495
logger.critical("AvahiError: %s", error)
3633
2496
cleanup()
3634
2497
sys.exit(1)
3635
2498
except KeyboardInterrupt:
3640
2503
# Must run before the D-Bus bus name gets deregistered
3641
2504
cleanup()
3642
2505
3643
3644
def should_only_run_tests():
3645
parser = argparse.ArgumentParser(add_help=False)
3646
parser.add_argument("--check", action='store_true')
3647
args, unknown_args = parser.parse_known_args()
3648
run_tests = args.check
3649
if run_tests:
3650
# Remove --check argument from sys.argv
3651
sys.argv[1:] = unknown_args
3652
return run_tests
3653
3654
# Add all tests from doctest strings
3655
def load_tests(loader, tests, none):
3656
import doctest
3657
tests.addTests(doctest.DocTestSuite())
3658
return tests
3659
3660
2506
if __name__ == '__main__':
3661
try:
3662
if should_only_run_tests():
3663
# Call using ./mandos --check [--verbose]
3664
unittest.main()
3665
else:
3666
main()
3667
finally:
3668
logging.shutdown()
2507
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0